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's and set rest of headers relative. */ h1 { font-size: 100%; color: black; border-bottom: solid 1px rgb(204,0,0); } h2 { font-size: 95%; border-bottom: none; } h3 { font-size: 90%; } h4 { font-size: 85%; } libnbd-1.2.2/m4/0000775000175000017500000000000013616543654010306 500000000000000libnbd-1.2.2/m4/ax_pthread.m40000664000175000017500000005052213524776043012611 00000000000000# =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_pthread.html # =========================================================================== # # SYNOPSIS # # AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) # # DESCRIPTION # # This macro figures out how to build C programs using POSIX threads. It # sets the PTHREAD_LIBS output variable to the threads library and linker # flags, and the PTHREAD_CFLAGS output variable to any special C compiler # flags that are needed. (The user can also force certain compiler # flags/libs to be tested by setting these environment variables.) # # Also sets PTHREAD_CC to any special C compiler that is needed for # multi-threaded programs (defaults to the value of CC otherwise). (This # is necessary on AIX to use the special cc_r compiler alias.) # # NOTE: You are assumed to not only compile your program with these flags, # but also to link with them as well. For example, you might link with # $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS # # If you are only building threaded programs, you may wish to use these # variables in your default LIBS, CFLAGS, and CC: # # LIBS="$PTHREAD_LIBS $LIBS" # CFLAGS="$CFLAGS $PTHREAD_CFLAGS" # CC="$PTHREAD_CC" # # In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant # has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to # that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX). # # Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the # PTHREAD_PRIO_INHERIT symbol is defined when compiling with # PTHREAD_CFLAGS. # # ACTION-IF-FOUND is a list of shell commands to run if a threads library # is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it # is not found. If ACTION-IF-FOUND is not specified, the default action # will define HAVE_PTHREAD. # # Please let the authors know if this macro fails on any platform, or if # you have any other suggestions or comments. This macro was based on work # by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help # from M. Frigo), as well as ac_pthread and hb_pthread macros posted by # Alejandro Forero Cuervo to the autoconf macro repository. We are also # grateful for the helpful feedback of numerous users. # # Updated for Autoconf 2.68 by Daniel Richard G. # # LICENSE # # Copyright (c) 2008 Steven G. Johnson # Copyright (c) 2011 Daniel Richard G. # # This program is free software: you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation, either version 3 of the License, or (at your # option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General # Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program. If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure # scripts that are the output of Autoconf when processing the Macro. You # need not follow the terms of the GNU General Public License when using # or distributing such scripts, even though portions of the text of the # Macro appear in them. The GNU General Public License (GPL) does govern # all other use of the material that constitutes the Autoconf Macro. # # This special exception to the GPL applies to versions of the Autoconf # Macro released by the Autoconf Archive. When you make and distribute a # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. #serial 24 AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) AC_DEFUN([AX_PTHREAD], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_PROG_SED]) AC_LANG_PUSH([C]) ax_pthread_ok=no # We used to check for pthread.h first, but this fails if pthread.h # requires special compiler flags (e.g. on Tru64 or Sequent). # It gets checked for in the link test anyway. # First of all, check if the user has set any of the PTHREAD_LIBS, # etcetera environment variables, and if threads linking works using # them: if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then ax_pthread_save_CC="$CC" ax_pthread_save_CFLAGS="$CFLAGS" ax_pthread_save_LIBS="$LIBS" AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"]) CFLAGS="$CFLAGS $PTHREAD_CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS]) AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes]) AC_MSG_RESULT([$ax_pthread_ok]) if test "x$ax_pthread_ok" = "xno"; then PTHREAD_LIBS="" PTHREAD_CFLAGS="" fi CC="$ax_pthread_save_CC" CFLAGS="$ax_pthread_save_CFLAGS" LIBS="$ax_pthread_save_LIBS" fi # We must check for the threads library under a number of different # names; the ordering is very important because some systems # (e.g. DEC) have both -lpthread and -lpthreads, where one of the # libraries is broken (non-POSIX). # Create a list of thread flags to try. Items starting with a "-" are # C compiler flags, and other items are library names, except for "none" # which indicates that we try without any flags at all, and "pthread-config" # which is a program returning the flags for the Pth emulation library. ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" # The ordering *is* (sometimes) important. Some notes on the # individual items follow: # pthreads: AIX (must check this before -lpthread) # none: in case threads are in libc; should be tried before -Kthread and # other compiler flags to prevent continual compiler warnings # -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) # -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64 # (Note: HP C rejects this with "bad form for `-t' option") # -pthreads: Solaris/gcc (Note: HP C also rejects) # -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it # doesn't hurt to check since this sometimes defines pthreads and # -D_REENTRANT too), HP C (must be checked before -lpthread, which # is present but should not be used directly; and before -mthreads, # because the compiler interprets this as "-mt" + "-hreads") # -mthreads: Mingw32/gcc, Lynx/gcc # pthread: Linux, etcetera # --thread-safe: KAI C++ # pthread-config: use pthread-config program (for GNU Pth library) case $host_os in freebsd*) # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) ax_pthread_flags="-kthread lthread $ax_pthread_flags" ;; hpux*) # From the cc(1) man page: "[-mt] Sets various -D flags to enable # multi-threading and also sets -lpthread." ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags" ;; openedition*) # IBM z/OS requires a feature-test macro to be defined in order to # enable POSIX threads at all, so give the user a hint if this is # not set. (We don't define these ourselves, as they can affect # other portions of the system API in unpredictable ways.) AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING], [ # if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) AX_PTHREAD_ZOS_MISSING # endif ], [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])]) ;; solaris*) # On Solaris (at least, for some versions), libc contains stubbed # (non-functional) versions of the pthreads routines, so link-based # tests will erroneously succeed. (N.B.: The stubs are missing # pthread_cleanup_push, or rather a function called by this macro, # so we could check for that, but who knows whether they'll stub # that too in a future libc.) So we'll check first for the # standard Solaris way of linking pthreads (-mt -lpthread). ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags" ;; esac # GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) AS_IF([test "x$GCC" = "xyes"], [ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"]) # The presence of a feature test macro requesting re-entrant function # definitions is, on some systems, a strong hint that pthreads support is # correctly enabled case $host_os in darwin* | hpux* | linux* | osf* | solaris*) ax_pthread_check_macro="_REENTRANT" ;; aix*) ax_pthread_check_macro="_THREAD_SAFE" ;; *) ax_pthread_check_macro="--" ;; esac AS_IF([test "x$ax_pthread_check_macro" = "x--"], [ax_pthread_check_cond=0], [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"]) # Are we compiling with Clang? AC_CACHE_CHECK([whether $CC is Clang], [ax_cv_PTHREAD_CLANG], [ax_cv_PTHREAD_CLANG=no # Note that Autoconf sets GCC=yes for Clang as well as GCC if test "x$GCC" = "xyes"; then AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG], [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ # if defined(__clang__) && defined(__llvm__) AX_PTHREAD_CC_IS_CLANG # endif ], [ax_cv_PTHREAD_CLANG=yes]) fi ]) ax_pthread_clang="$ax_cv_PTHREAD_CLANG" ax_pthread_clang_warning=no # Clang needs special handling, because older versions handle the -pthread # option in a rather... idiosyncratic way if test "x$ax_pthread_clang" = "xyes"; then # Clang takes -pthread; it has never supported any other flag # (Note 1: This will need to be revisited if a system that Clang # supports has POSIX threads in a separate library. This tends not # to be the way of modern systems, but it's conceivable.) # (Note 2: On some systems, notably Darwin, -pthread is not needed # to get POSIX threads support; the API is always present and # active. We could reasonably leave PTHREAD_CFLAGS empty. But # -pthread does define _REENTRANT, and while the Darwin headers # ignore this macro, third-party headers might not.) PTHREAD_CFLAGS="-pthread" PTHREAD_LIBS= ax_pthread_ok=yes # However, older versions of Clang make a point of warning the user # that, in an invocation where only linking and no compilation is # taking place, the -pthread option has no effect ("argument unused # during compilation"). They expect -pthread to be passed in only # when source code is being compiled. # # Problem is, this is at odds with the way Automake and most other # C build frameworks function, which is that the same flags used in # compilation (CFLAGS) are also used in linking. Many systems # supported by AX_PTHREAD require exactly this for POSIX threads # support, and in fact it is often not straightforward to specify a # flag that is used only in the compilation phase and not in # linking. Such a scenario is extremely rare in practice. # # Even though use of the -pthread flag in linking would only print # a warning, this can be a nuisance for well-run software projects # that build with -Werror. So if the active version of Clang has # this misfeature, we search for an option to squash it. AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread], [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG], [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown # Create an alternate version of $ac_link that compiles and # links in two steps (.c -> .o, .o -> exe) instead of one # (.c -> exe), because the warning occurs only in the second # step ax_pthread_save_ac_link="$ac_link" ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"` ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" ax_pthread_save_CFLAGS="$CFLAGS" for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do AS_IF([test "x$ax_pthread_try" = "xunknown"], [break]) CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" ac_link="$ax_pthread_save_ac_link" AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], [ac_link="$ax_pthread_2step_ac_link" AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], [break]) ]) done ac_link="$ax_pthread_save_ac_link" CFLAGS="$ax_pthread_save_CFLAGS" AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no]) ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try" ]) case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in no | unknown) ;; *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;; esac fi # $ax_pthread_clang = yes if test "x$ax_pthread_ok" = "xno"; then for ax_pthread_try_flag in $ax_pthread_flags; do case $ax_pthread_try_flag in none) AC_MSG_CHECKING([whether pthreads work without any flags]) ;; -mt,pthread) AC_MSG_CHECKING([whether pthreads work with -mt -lpthread]) PTHREAD_CFLAGS="-mt" PTHREAD_LIBS="-lpthread" ;; -*) AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag]) PTHREAD_CFLAGS="$ax_pthread_try_flag" ;; pthread-config) AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no]) AS_IF([test "x$ax_pthread_config" = "xno"], [continue]) PTHREAD_CFLAGS="`pthread-config --cflags`" PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" ;; *) AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag]) PTHREAD_LIBS="-l$ax_pthread_try_flag" ;; esac ax_pthread_save_CFLAGS="$CFLAGS" ax_pthread_save_LIBS="$LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" # Check for various functions. We must include pthread.h, # since some functions may be macros. (On the Sequent, we # need a special flag -Kthread to make this header compile.) # We check for pthread_join because it is in -lpthread on IRIX # while pthread_create is in libc. We check for pthread_attr_init # due to DEC craziness with -lpthreads. We check for # pthread_cleanup_push because it is one of the few pthread # functions on Solaris that doesn't have a non-functional libc stub. # We try pthread_create on general principles. AC_LINK_IFELSE([AC_LANG_PROGRAM([#include # if $ax_pthread_check_cond # error "$ax_pthread_check_macro must be defined" # endif static void routine(void *a) { a = 0; } static void *start_routine(void *a) { return a; }], [pthread_t th; pthread_attr_t attr; pthread_create(&th, 0, start_routine, 0); pthread_join(th, 0); pthread_attr_init(&attr); pthread_cleanup_push(routine, 0); pthread_cleanup_pop(0) /* ; */])], [ax_pthread_ok=yes], []) CFLAGS="$ax_pthread_save_CFLAGS" LIBS="$ax_pthread_save_LIBS" AC_MSG_RESULT([$ax_pthread_ok]) AS_IF([test "x$ax_pthread_ok" = "xyes"], [break]) PTHREAD_LIBS="" PTHREAD_CFLAGS="" done fi # Various other checks: if test "x$ax_pthread_ok" = "xyes"; then ax_pthread_save_CFLAGS="$CFLAGS" ax_pthread_save_LIBS="$LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. AC_CACHE_CHECK([for joinable pthread attribute], [ax_cv_PTHREAD_JOINABLE_ATTR], [ax_cv_PTHREAD_JOINABLE_ATTR=unknown for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do AC_LINK_IFELSE([AC_LANG_PROGRAM([#include ], [int attr = $ax_pthread_attr; return attr /* ; */])], [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break], []) done ]) AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ test "x$ax_pthread_joinable_attr_defined" != "xyes"], [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], [$ax_cv_PTHREAD_JOINABLE_ATTR], [Define to necessary symbol if this constant uses a non-standard name on your system.]) ax_pthread_joinable_attr_defined=yes ]) AC_CACHE_CHECK([whether more special flags are required for pthreads], [ax_cv_PTHREAD_SPECIAL_FLAGS], [ax_cv_PTHREAD_SPECIAL_FLAGS=no case $host_os in solaris*) ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" ;; esac ]) AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ test "x$ax_pthread_special_flags_added" != "xyes"], [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" ax_pthread_special_flags_added=yes]) AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], [ax_cv_PTHREAD_PRIO_INHERIT], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], [[int i = PTHREAD_PRIO_INHERIT;]])], [ax_cv_PTHREAD_PRIO_INHERIT=yes], [ax_cv_PTHREAD_PRIO_INHERIT=no]) ]) AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \ test "x$ax_pthread_prio_inherit_defined" != "xyes"], [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.]) ax_pthread_prio_inherit_defined=yes ]) CFLAGS="$ax_pthread_save_CFLAGS" LIBS="$ax_pthread_save_LIBS" # More AIX lossage: compile with *_r variant if test "x$GCC" != "xyes"; then case $host_os in aix*) AS_CASE(["x/$CC"], [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6], [#handle absolute path differently from PATH based program lookup AS_CASE(["x$CC"], [x/*], [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])], [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])]) ;; esac fi fi test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" AC_SUBST([PTHREAD_LIBS]) AC_SUBST([PTHREAD_CFLAGS]) AC_SUBST([PTHREAD_CC]) # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: if test "x$ax_pthread_ok" = "xyes"; then ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1]) : else ax_pthread_ok=no $2 fi AC_LANG_POP ])dnl AX_PTHREAD libnbd-1.2.2/m4/libtool.m40000644000175000017500000112530613465556604012143 00000000000000# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*- # # Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc. # Written by Gordon Matzigkeit, 1996 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. m4_define([_LT_COPYING], [dnl # Copyright (C) 2014 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # GNU Libtool is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of of the License, or # (at your option) any later version. # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program or library that is built # using GNU Libtool, you may include this file under the same # distribution terms that you use for the rest of that program. # # GNU Libtool is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . ]) # serial 58 LT_INIT # LT_PREREQ(VERSION) # ------------------ # Complain and exit if this libtool version is less that VERSION. m4_defun([LT_PREREQ], [m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1, [m4_default([$3], [m4_fatal([Libtool version $1 or higher is required], 63)])], [$2])]) # _LT_CHECK_BUILDDIR # ------------------ # Complain if the absolute build directory name contains unusual characters m4_defun([_LT_CHECK_BUILDDIR], [case `pwd` in *\ * | *\ *) AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;; esac ]) # LT_INIT([OPTIONS]) # ------------------ AC_DEFUN([LT_INIT], [AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl AC_BEFORE([$0], [LT_LANG])dnl AC_BEFORE([$0], [LT_OUTPUT])dnl AC_BEFORE([$0], [LTDL_INIT])dnl m4_require([_LT_CHECK_BUILDDIR])dnl dnl Autoconf doesn't catch unexpanded LT_ macros by default: m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4 dnl unless we require an AC_DEFUNed macro: AC_REQUIRE([LTOPTIONS_VERSION])dnl AC_REQUIRE([LTSUGAR_VERSION])dnl AC_REQUIRE([LTVERSION_VERSION])dnl AC_REQUIRE([LTOBSOLETE_VERSION])dnl m4_require([_LT_PROG_LTMAIN])dnl _LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}]) dnl Parse OPTIONS _LT_SET_OPTIONS([$0], [$1]) # This can be used to rebuild libtool when needed LIBTOOL_DEPS=$ltmain # Always use our own libtool. LIBTOOL='$(SHELL) $(top_builddir)/libtool' AC_SUBST(LIBTOOL)dnl _LT_SETUP # Only expand once: m4_define([LT_INIT]) ])# LT_INIT # Old names: AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT]) AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_PROG_LIBTOOL], []) dnl AC_DEFUN([AM_PROG_LIBTOOL], []) # _LT_PREPARE_CC_BASENAME # ----------------------- m4_defun([_LT_PREPARE_CC_BASENAME], [ # Calculate cc_basename. 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cat conftest.err >&AS_MESSAGE_LOG_FD echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD if (exit $ac_status) && test -s "$ac_outfile"; then # The compiler can only warn and ignore the option if not recognized # So say no if there are warnings other than the usual output. $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then $2=yes fi fi $RM conftest* ]) if test yes = "[$]$2"; then m4_if([$5], , :, [$5]) else m4_if([$6], , :, [$6]) fi ])# _LT_COMPILER_OPTION # Old name: AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], []) # _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS, # [ACTION-SUCCESS], [ACTION-FAILURE]) # ---------------------------------------------------- # Check whether the given linker option works AC_DEFUN([_LT_LINKER_OPTION], [m4_require([_LT_FILEUTILS_DEFAULTS])dnl m4_require([_LT_DECL_SED])dnl AC_CACHE_CHECK([$1], [$2], [$2=no save_LDFLAGS=$LDFLAGS LDFLAGS="$LDFLAGS $3" echo "$lt_simple_link_test_code" > conftest.$ac_ext if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then # The linker can only warn and ignore the option if not recognized # So say no if there are warnings if test -s conftest.err; then # Append any errors to the config.log. cat conftest.err 1>&AS_MESSAGE_LOG_FD $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 if diff conftest.exp conftest.er2 >/dev/null; then $2=yes fi else $2=yes fi fi $RM -r conftest* LDFLAGS=$save_LDFLAGS ]) if test yes = "[$]$2"; then m4_if([$4], , :, [$4]) else m4_if([$5], , :, [$5]) fi ])# _LT_LINKER_OPTION # Old name: AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], []) # LT_CMD_MAX_LEN #--------------- AC_DEFUN([LT_CMD_MAX_LEN], [AC_REQUIRE([AC_CANONICAL_HOST])dnl # find the maximum length of command line arguments AC_MSG_CHECKING([the maximum length of command line arguments]) AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl i=0 teststring=ABCD case $build_os in msdosdjgpp*) # On DJGPP, this test can blow up pretty badly due to problems in libc # (any single argument exceeding 2000 bytes causes a buffer overrun # during glob expansion). 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It is not # nice to cause kernel panics so lets avoid the loop below. # First set a reasonable default. lt_cv_sys_max_cmd_len=16384 # if test -x /sbin/sysconfig; then case `/sbin/sysconfig -q proc exec_disable_arg_limit` in *1*) lt_cv_sys_max_cmd_len=-1 ;; esac fi ;; sco3.2v5*) lt_cv_sys_max_cmd_len=102400 ;; sysv5* | sco5v6* | sysv4.2uw2*) kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` if test -n "$kargmax"; then lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'` else lt_cv_sys_max_cmd_len=32768 fi ;; *) lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` if test -n "$lt_cv_sys_max_cmd_len" && \ test undefined != "$lt_cv_sys_max_cmd_len"; then lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` else # Make teststring a little bigger before we do anything with it. # a 1K string should be a reasonable start. for i in 1 2 3 4 5 6 7 8; do teststring=$teststring$teststring done SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} # If test is not a shell built-in, we'll probably end up computing a # maximum length that is only half of the actual maximum length, but # we can't tell. while { test X`env echo "$teststring$teststring" 2>/dev/null` \ = "X$teststring$teststring"; } >/dev/null 2>&1 && test 17 != "$i" # 1/2 MB should be enough do i=`expr $i + 1` teststring=$teststring$teststring done # Only check the string length outside the loop. lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` teststring= # Add a significant safety factor because C++ compilers can tack on # massive amounts of additional arguments before passing them to the # linker. It appears as though 1/2 is a usable value. lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` fi ;; esac ]) if test -n "$lt_cv_sys_max_cmd_len"; then AC_MSG_RESULT($lt_cv_sys_max_cmd_len) else AC_MSG_RESULT(none) fi max_cmd_len=$lt_cv_sys_max_cmd_len _LT_DECL([], [max_cmd_len], [0], [What is the maximum length of a command?]) ])# LT_CMD_MAX_LEN # Old name: AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], []) # _LT_HEADER_DLFCN # ---------------- m4_defun([_LT_HEADER_DLFCN], [AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl ])# _LT_HEADER_DLFCN # _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE, # ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING) # ---------------------------------------------------------------- m4_defun([_LT_TRY_DLOPEN_SELF], [m4_require([_LT_HEADER_DLFCN])dnl if test yes = "$cross_compiling"; then : [$4] else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF [#line $LINENO "configure" #include "confdefs.h" #if HAVE_DLFCN_H #include #endif #include #ifdef RTLD_GLOBAL # define LT_DLGLOBAL RTLD_GLOBAL #else # ifdef DL_GLOBAL # define LT_DLGLOBAL DL_GLOBAL # else # define LT_DLGLOBAL 0 # endif #endif /* We may have to define LT_DLLAZY_OR_NOW in the command line if we find out it does not work in some platform. */ #ifndef LT_DLLAZY_OR_NOW # ifdef RTLD_LAZY # define LT_DLLAZY_OR_NOW RTLD_LAZY # else # ifdef DL_LAZY # define LT_DLLAZY_OR_NOW DL_LAZY # else # ifdef RTLD_NOW # define LT_DLLAZY_OR_NOW RTLD_NOW # else # ifdef DL_NOW # define LT_DLLAZY_OR_NOW DL_NOW # else # define LT_DLLAZY_OR_NOW 0 # endif # endif # endif # endif #endif /* When -fvisibility=hidden is used, assume the code has been annotated correspondingly for the symbols needed. */ #if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) int fnord () __attribute__((visibility("default"))); #endif int fnord () { return 42; } int main () { void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); int status = $lt_dlunknown; if (self) { if (dlsym (self,"fnord")) status = $lt_dlno_uscore; else { if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; else puts (dlerror ()); } /* dlclose (self); */ } else puts (dlerror ()); return status; }] _LT_EOF if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null lt_status=$? case x$lt_status in x$lt_dlno_uscore) $1 ;; x$lt_dlneed_uscore) $2 ;; x$lt_dlunknown|x*) $3 ;; esac else : # compilation failed $3 fi fi rm -fr conftest* ])# _LT_TRY_DLOPEN_SELF # LT_SYS_DLOPEN_SELF # ------------------ AC_DEFUN([LT_SYS_DLOPEN_SELF], [m4_require([_LT_HEADER_DLFCN])dnl if test yes != "$enable_dlopen"; then enable_dlopen=unknown enable_dlopen_self=unknown enable_dlopen_self_static=unknown else lt_cv_dlopen=no lt_cv_dlopen_libs= case $host_os in beos*) lt_cv_dlopen=load_add_on lt_cv_dlopen_libs= lt_cv_dlopen_self=yes ;; mingw* | pw32* | cegcc*) lt_cv_dlopen=LoadLibrary lt_cv_dlopen_libs= ;; cygwin*) lt_cv_dlopen=dlopen lt_cv_dlopen_libs= ;; darwin*) # if libdl is installed we need to link against it AC_CHECK_LIB([dl], [dlopen], [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[ lt_cv_dlopen=dyld lt_cv_dlopen_libs= lt_cv_dlopen_self=yes ]) ;; tpf*) # Don't try to run any link tests for TPF. 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then # We can hardcode non-existent directories. if test no != "$_LT_TAGVAR(hardcode_direct, $1)" && # If the only mechanism to avoid hardcoding is shlibpath_var, we # have to relink, otherwise we might link with an installed library # when we should be linking with a yet-to-be-installed one ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" && test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then # Linking always hardcodes the temporary library directory. _LT_TAGVAR(hardcode_action, $1)=relink else # We can link without hardcoding, and we can hardcode nonexisting dirs. _LT_TAGVAR(hardcode_action, $1)=immediate fi else # We cannot hardcode anything, or else we can only hardcode existing # directories. _LT_TAGVAR(hardcode_action, $1)=unsupported fi AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)]) if test relink = "$_LT_TAGVAR(hardcode_action, $1)" || test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then # Fast installation is not supported enable_fast_install=no elif test yes = "$shlibpath_overrides_runpath" || test no = "$enable_shared"; then # Fast installation is not necessary enable_fast_install=needless fi _LT_TAGDECL([], [hardcode_action], [0], [How to hardcode a shared library path into an executable]) ])# _LT_LINKER_HARDCODE_LIBPATH # _LT_CMD_STRIPLIB # ---------------- m4_defun([_LT_CMD_STRIPLIB], [m4_require([_LT_DECL_EGREP]) striplib= old_striplib= AC_MSG_CHECKING([whether stripping libraries is possible]) if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" test -z "$striplib" && striplib="$STRIP --strip-unneeded" AC_MSG_RESULT([yes]) else # FIXME - insert some real tests, host_os isn't really good enough case $host_os in darwin*) if test -n "$STRIP"; then striplib="$STRIP -x" old_striplib="$STRIP -S" AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) fi ;; *) AC_MSG_RESULT([no]) ;; esac fi _LT_DECL([], [old_striplib], [1], [Commands to strip libraries]) _LT_DECL([], [striplib], [1]) ])# _LT_CMD_STRIPLIB # _LT_PREPARE_MUNGE_PATH_LIST # --------------------------- # Make sure func_munge_path_list() is defined correctly. m4_defun([_LT_PREPARE_MUNGE_PATH_LIST], [[# func_munge_path_list VARIABLE PATH # ----------------------------------- # VARIABLE is name of variable containing _space_ separated list of # directories to be munged by the contents of PATH, which is string # having a format: # "DIR[:DIR]:" # string "DIR[ DIR]" will be prepended to VARIABLE # ":DIR[:DIR]" # string "DIR[ DIR]" will be appended to VARIABLE # "DIRP[:DIRP]::[DIRA:]DIRA" # string "DIRP[ DIRP]" will be prepended to VARIABLE and string # "DIRA[ DIRA]" will be appended to VARIABLE # "DIR[:DIR]" # VARIABLE will be replaced by "DIR[ DIR]" func_munge_path_list () { case x@S|@2 in x) ;; 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esac ;; haiku*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no dynamic_linker="$host_os runtime_loader" library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LIBRARY_PATH shlibpath_overrides_runpath=no sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' hardcode_into_libs=yes ;; hpux9* | hpux10* | hpux11*) # Give a soname corresponding to the major version so that dld.sl refuses to # link against other versions. version_type=sunos need_lib_prefix=no need_version=no case $host_cpu in ia64*) shrext_cmds='.so' hardcode_into_libs=yes dynamic_linker="$host_os dld.so" shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' if test 32 = "$HPUX_IA64_MODE"; then sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" sys_lib_dlsearch_path_spec=/usr/lib/hpux32 else sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" sys_lib_dlsearch_path_spec=/usr/lib/hpux64 fi ;; hppa*64*) shrext_cmds='.sl' hardcode_into_libs=yes dynamic_linker="$host_os dld.sl" shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec ;; *) shrext_cmds='.sl' dynamic_linker="$host_os dld.sl" shlibpath_var=SHLIB_PATH shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' ;; esac # HP-UX runs *really* slowly unless shared libraries are mode 555, ... postinstall_cmds='chmod 555 $lib' # or fails outright, so override atomically: install_override_mode=555 ;; interix[[3-9]]*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; irix5* | irix6* | nonstopux*) case $host_os in nonstopux*) version_type=nonstopux ;; *) if test yes = "$lt_cv_prog_gnu_ld"; then version_type=linux # correct to gnu/linux during the next big refactor else version_type=irix fi ;; esac need_lib_prefix=no need_version=no soname_spec='$libname$release$shared_ext$major' library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' case $host_os in irix5* | nonstopux*) libsuff= shlibsuff= ;; *) case $LD in # libtool.m4 will add one of these switches to LD *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= libmagic=32-bit;; *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 libmagic=N32;; *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 libmagic=64-bit;; *) libsuff= shlibsuff= libmagic=never-match;; esac ;; esac shlibpath_var=LD_LIBRARY${shlibsuff}_PATH shlibpath_overrides_runpath=no sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; linux*android*) version_type=none # Android doesn't support versioned libraries. need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext' soname_spec='$libname$release$shared_ext' finish_cmds= shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes dynamic_linker='Android linker' # Don't embed -rpath directories since the linker doesn't support them. _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no # Some binutils ld are patched to set DT_RUNPATH AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath], [lt_cv_shlibpath_overrides_runpath=no save_LDFLAGS=$LDFLAGS save_libdir=$libdir eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \ LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\"" AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])], [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null], [lt_cv_shlibpath_overrides_runpath=yes])]) LDFLAGS=$save_LDFLAGS libdir=$save_libdir ]) shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes # Add ABI-specific directories to the system library path. sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib" # Ideally, we could use ldconfig to report *all* directores which are # searched for libraries, however this is still not possible. 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then case $cc_basename in nvcc*) _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; *) _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; esac _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], lt_cv_prog_compiler_rtti_exceptions, [-fno-rtti -fno-exceptions], [], [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) fi _LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], [Compiler flag to turn off builtin functions]) ])# _LT_COMPILER_NO_RTTI # _LT_CMD_GLOBAL_SYMBOLS # ---------------------- m4_defun([_LT_CMD_GLOBAL_SYMBOLS], [AC_REQUIRE([AC_CANONICAL_HOST])dnl AC_REQUIRE([AC_PROG_CC])dnl AC_REQUIRE([AC_PROG_AWK])dnl AC_REQUIRE([LT_PATH_NM])dnl AC_REQUIRE([LT_PATH_LD])dnl m4_require([_LT_DECL_SED])dnl m4_require([_LT_DECL_EGREP])dnl m4_require([_LT_TAG_COMPILER])dnl # Check for command to grab the raw symbol name followed by C symbol from nm. AC_MSG_CHECKING([command to parse $NM output from $compiler object]) AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], [ # These are sane defaults that work on at least a few old systems. # [They come from Ultrix. What could be older than Ultrix?!! ;)] # Character class describing NM global symbol codes. symcode='[[BCDEGRST]]' # Regexp to match symbols that can be accessed directly from C. sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' # Define system-specific variables. case $host_os in aix*) symcode='[[BCDT]]' ;; cygwin* | mingw* | pw32* | cegcc*) symcode='[[ABCDGISTW]]' ;; hpux*) if test ia64 = "$host_cpu"; then symcode='[[ABCDEGRST]]' fi ;; irix* | nonstopux*) symcode='[[BCDEGRST]]' ;; osf*) symcode='[[BCDEGQRST]]' ;; solaris*) symcode='[[BDRT]]' ;; sco3.2v5*) symcode='[[DT]]' ;; sysv4.2uw2*) symcode='[[DT]]' ;; sysv5* | sco5v6* | unixware* | OpenUNIX*) symcode='[[ABDT]]' ;; sysv4) symcode='[[DFNSTU]]' ;; esac # If we're using GNU nm, then use its standard symbol codes. case `$NM -V 2>&1` in *GNU* | *'with BFD'*) symcode='[[ABCDGIRSTW]]' ;; esac if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Gets list of data symbols to import. lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" # Adjust the below global symbol transforms to fixup imported variables. lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" lt_c_name_lib_hook="\ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" else # Disable hooks by default. lt_cv_sys_global_symbol_to_import= lt_cdecl_hook= lt_c_name_hook= lt_c_name_lib_hook= fi # Transform an extracted symbol line into a proper C declaration. # Some systems (esp. on ia64) link data and code symbols differently, # so use this general approach. lt_cv_sys_global_symbol_to_cdecl="sed -n"\ $lt_cdecl_hook\ " -e 's/^T .* \(.*\)$/extern int \1();/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" # Transform an extracted symbol line into symbol name and symbol address lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ $lt_c_name_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" # Transform an extracted symbol line into symbol name with lib prefix and # symbol address. lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ $lt_c_name_lib_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" # Handle CRLF in mingw tool chain opt_cr= case $build_os in mingw*) opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp ;; esac # Try without a prefix underscore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Fake it for dumpbin and say T for any non-static function, # D for any global variable and I for any imported variable. # Also find C++ and __fastcall symbols from MSVC++, # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK ['"\ " {last_section=section; section=\$ 3};"\ " /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ " /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ " /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ " {if(hide[section]) next};"\ " {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ " {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ " s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ " s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ " ' prfx=^$ac_symprfx]" else lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" fi lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" # Check to see that the pipe works correctly. pipe_works=no rm -f conftest* cat > conftest.$ac_ext <<_LT_EOF #ifdef __cplusplus extern "C" { #endif char nm_test_var; void nm_test_func(void); void nm_test_func(void){} #ifdef __cplusplus } #endif int main(){nm_test_var='a';nm_test_func();return(0);} _LT_EOF if AC_TRY_EVAL(ac_compile); then # Now try to grab the symbols. nlist=conftest.nm if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then # Try sorting and uniquifying the output. if sort "$nlist" | uniq > "$nlist"T; then mv -f "$nlist"T "$nlist" else rm -f "$nlist"T fi # Make sure that we snagged all the symbols we need. if $GREP ' nm_test_var$' "$nlist" >/dev/null; then if $GREP ' nm_test_func$' "$nlist" >/dev/null; then cat <<_LT_EOF > conftest.$ac_ext /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT@&t@_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT@&t@_DLSYM_CONST #else # define LT@&t@_DLSYM_CONST const #endif #ifdef __cplusplus extern "C" { #endif _LT_EOF # Now generate the symbol file. eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' cat <<_LT_EOF >> conftest.$ac_ext /* The mapping between symbol names and symbols. */ LT@&t@_DLSYM_CONST struct { const char *name; void *address; } lt__PROGRAM__LTX_preloaded_symbols[[]] = { { "@PROGRAM@", (void *) 0 }, _LT_EOF $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext cat <<\_LT_EOF >> conftest.$ac_ext {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt__PROGRAM__LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif _LT_EOF # Now try linking the two files. mv conftest.$ac_objext conftstm.$ac_objext lt_globsym_save_LIBS=$LIBS lt_globsym_save_CFLAGS=$CFLAGS LIBS=conftstm.$ac_objext CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then pipe_works=yes fi LIBS=$lt_globsym_save_LIBS CFLAGS=$lt_globsym_save_CFLAGS else echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD fi else echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD fi else echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD fi else echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD cat conftest.$ac_ext >&5 fi rm -rf conftest* conftst* # Do not use the global_symbol_pipe unless it works. if test yes = "$pipe_works"; then break else lt_cv_sys_global_symbol_pipe= fi done ]) if test -z "$lt_cv_sys_global_symbol_pipe"; then lt_cv_sys_global_symbol_to_cdecl= fi if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then AC_MSG_RESULT(failed) else AC_MSG_RESULT(ok) fi # Response file support. if test "$lt_cv_nm_interface" = "MS dumpbin"; then nm_file_list_spec='@' elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then nm_file_list_spec='@' fi _LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], [Take the output of nm and produce a listing of raw symbols and C names]) _LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], [Transform the output of nm in a proper C declaration]) _LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1], [Transform the output of nm into a list of symbols to manually relocate]) _LT_DECL([global_symbol_to_c_name_address], [lt_cv_sys_global_symbol_to_c_name_address], [1], [Transform the output of nm in a C name address pair]) _LT_DECL([global_symbol_to_c_name_address_lib_prefix], [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], [Transform the output of nm in a C name address pair when lib prefix is needed]) _LT_DECL([nm_interface], [lt_cv_nm_interface], [1], [The name lister interface]) _LT_DECL([], [nm_file_list_spec], [1], [Specify filename containing input files for $NM]) ]) # _LT_CMD_GLOBAL_SYMBOLS # _LT_COMPILER_PIC([TAGNAME]) # --------------------------- m4_defun([_LT_COMPILER_PIC], [m4_require([_LT_TAG_COMPILER])dnl _LT_TAGVAR(lt_prog_compiler_wl, $1)= _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)= m4_if([$1], [CXX], [ # C++ specific cases for pic, static, wl, etc. if test yes = "$GXX"; then _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' case $host_os in aix*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; m68k) # FIXME: we need at least 68020 code to build shared libraries, but # adding the '-m68020' flag to GCC prevents building anything better, # like '-m68040'. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' ;; esac ;; beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) # PIC is the default for these OSes. ;; mingw* | cygwin* | os2* | pw32* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). # Although the cygwin gcc ignores -fPIC, still need this for old-style # (--disable-auto-import) libraries m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) case $host_os in os2*) _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' ;; esac ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' ;; *djgpp*) # DJGPP does not support shared libraries at all _LT_TAGVAR(lt_prog_compiler_pic, $1)= ;; haiku*) # PIC is the default for Haiku. # The "-static" flag exists, but is broken. _LT_TAGVAR(lt_prog_compiler_static, $1)= ;; interix[[3-9]]*) # Interix 3.x gcc -fpic/-fPIC options generate broken code. # Instead, we relocate shared libraries at runtime. ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic fi ;; hpux*) # PIC is the default for 64-bit PA HP-UX, but not for 32-bit # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag # sets the default TLS model and affects inlining. case $host_cpu in hppa*64*) ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac ;; *qnx* | *nto*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac else case $host_os in aix[[4-9]]*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' else _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' fi ;; chorus*) case $cc_basename in cxch68*) # Green Hills C++ Compiler # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" ;; esac ;; mingw* | cygwin* | os2* | pw32* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) ;; dgux*) case $cc_basename in ec++*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' ;; ghcx*) # Green Hills C++ Compiler _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; *) ;; esac ;; freebsd* | dragonfly*) # FreeBSD uses GNU C++ ;; hpux9* | hpux10* | hpux11*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' if test ia64 != "$host_cpu"; then _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' fi ;; aCC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' case $host_cpu in hppa*64*|ia64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' ;; esac ;; *) ;; esac ;; interix*) # This is c89, which is MS Visual C++ (no shared libs) # Anyone wants to do a port? ;; irix5* | irix6* | nonstopux*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' # CC pic flag -KPIC is the default. ;; *) ;; esac ;; linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) case $cc_basename in KCC*) # KAI C++ Compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; ecpc* ) # old Intel C++ for x86_64, which still supported -KPIC. _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; icpc* ) # Intel C++, used to be incompatible with GCC. # ICC 10 doesn't accept -KPIC any more. _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; pgCC* | pgcpp*) # Portland Group C++ compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; cxx*) # Compaq C++ # Make sure the PIC flag is empty. It appears that all Alpha # Linux and Compaq Tru64 Unix objects are PIC. _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL 8.0, 9.0 on PPC and BlueGene _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' ;; *) case `$CC -V 2>&1 | sed 5q` in *Sun\ C*) # Sun C++ 5.9 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; esac ;; esac ;; lynxos*) ;; m88k*) ;; mvs*) case $cc_basename in cxx*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' ;; *) ;; esac ;; netbsd*) ;; *qnx* | *nto*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; osf3* | osf4* | osf5*) case $cc_basename in KCC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' ;; RCC*) # Rational C++ 2.4.1 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; cxx*) # Digital/Compaq C++ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # Make sure the PIC flag is empty. It appears that all Alpha # Linux and Compaq Tru64 Unix objects are PIC. _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; *) ;; esac ;; psos*) ;; solaris*) case $cc_basename in CC* | sunCC*) # Sun C++ 4.2, 5.x and Centerline C++ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; gcx*) # Green Hills C++ Compiler _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' ;; *) ;; esac ;; sunos4*) case $cc_basename in CC*) # Sun C++ 4.x _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; lcc*) # Lucid _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; *) ;; esac ;; sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; tandem*) case $cc_basename in NCC*) # NonStop-UX NCC 3.20 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' ;; *) ;; esac ;; vxworks*) ;; *) _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; esac fi ], [ if test yes = "$GCC"; then _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' case $host_os in aix*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; m68k) # FIXME: we need at least 68020 code to build shared libraries, but # adding the '-m68020' flag to GCC prevents building anything better, # like '-m68040'. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' ;; esac ;; beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) # PIC is the default for these OSes. ;; mingw* | cygwin* | pw32* | os2* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). # Although the cygwin gcc ignores -fPIC, still need this for old-style # (--disable-auto-import) libraries m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) case $host_os in os2*) _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' ;; esac ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' ;; haiku*) # PIC is the default for Haiku. # The "-static" flag exists, but is broken. _LT_TAGVAR(lt_prog_compiler_static, $1)= ;; hpux*) # PIC is the default for 64-bit PA HP-UX, but not for 32-bit # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag # sets the default TLS model and affects inlining. case $host_cpu in hppa*64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac ;; interix[[3-9]]*) # Interix 3.x gcc -fpic/-fPIC options generate broken code. # Instead, we relocate shared libraries at runtime. ;; msdosdjgpp*) # Just because we use GCC doesn't mean we suddenly get shared libraries # on systems that don't support them. _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no enable_shared=no ;; *nto* | *qnx*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic fi ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac case $cc_basename in nvcc*) # Cuda Compiler Driver 2.2 _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker ' if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" fi ;; esac else # PORTME Check for flag to pass linker flags through the system compiler. case $host_os in aix*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' else _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' fi ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' case $cc_basename in nagfor*) # NAG Fortran compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; mingw* | cygwin* | pw32* | os2* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) case $host_os in os2*) _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' ;; esac ;; hpux9* | hpux10* | hpux11*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but # not for PA HP-UX. case $host_cpu in hppa*64*|ia64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' ;; esac # Is there a better lt_prog_compiler_static that works with the bundled CC? _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' ;; irix5* | irix6* | nonstopux*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # PIC (with -KPIC) is the default. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) case $cc_basename in # old Intel for x86_64, which still supported -KPIC. ecc*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; # icc used to be incompatible with GCC. # ICC 10 doesn't accept -KPIC any more. icc* | ifort*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; # Lahey Fortran 8.1. lf95*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared' _LT_TAGVAR(lt_prog_compiler_static, $1)='--static' ;; nagfor*) # NAG Fortran compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; tcc*) # Fabrice Bellard et al's Tiny C Compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) # Portland Group compilers (*not* the Pentium gcc compiler, # which looks to be a dead project) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; ccc*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # All Alpha code is PIC. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; xl* | bgxl* | bgf* | mpixl*) # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' ;; *) case `$CC -V 2>&1 | sed 5q` in *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*) # Sun Fortran 8.3 passes all unrecognized flags to the linker _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='' ;; *Sun\ F* | *Sun*Fortran*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; *Sun\ C*) # Sun C 5.9 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' ;; *Intel*\ [[CF]]*Compiler*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; *Portland\ Group*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; esac ;; newsos6) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; *nto* | *qnx*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; osf3* | osf4* | osf5*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # All OSF/1 code is PIC. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; rdos*) _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; solaris*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' case $cc_basename in f77* | f90* | f95* | sunf77* | sunf90* | sunf95*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';; *) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';; esac ;; sunos4*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; sysv4 | sysv4.2uw2* | sysv4.3*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi ;; sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; unicos*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; uts4*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; *) _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; esac fi ]) case $host_os in # For platforms that do not support PIC, -DPIC is meaningless: *djgpp*) _LT_TAGVAR(lt_prog_compiler_pic, $1)= ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])" ;; esac AC_CACHE_CHECK([for $compiler option to produce PIC], [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)], [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)]) _LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1) # # Check to make sure the PIC flag actually works. # if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; 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solaris*) _LT_TAGVAR(no_undefined_flag, $1)=' -z defs' if test yes = "$GCC"; then wlarc='$wl' _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' else case `$CC -V 2>&1` in *"Compilers 5.0"*) wlarc='' _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' ;; *) wlarc='$wl' _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' ;; esac fi _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' _LT_TAGVAR(hardcode_shlibpath_var, $1)=no case $host_os in solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; *) # The compiler driver will combine and reorder linker options, # but understands '-z linker_flag'. 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(KAI) C++ Compiler # KCC will only create a shared library if the output file # ends with ".so" (or ".sl" for HP-UX), so rename the library # to its proper name (with version) after linking. _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib' # Commands to make compiler produce verbose output that lists # what "hidden" libraries, object files and flags are used when # linking a shared library. # # There doesn't appear to be a way to prevent this compiler from # explicitly linking system object files so we need to strip them # from the output so that they don't get included in the library # dependencies. output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' # Archives containing C++ object files must be created using # "CC -Bstatic", where "CC" is the KAI C++ compiler. _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;; icpc* | ecpc* ) # Intel C++ with_gnu_ld=yes # version 8.0 and above of icpc choke on multiply defined symbols # if we add $predep_objects and $postdep_objects, however 7.1 and # earlier do not add the objects themselves. case `$CC -V 2>&1` in *"Version 7."*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; *) # Version 8.0 or newer tmp_idyn= case $host_cpu in ia64*) tmp_idyn=' -i_dynamic';; esac _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; esac _LT_TAGVAR(archive_cmds_need_lc, $1)=no _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' ;; pgCC* | pgcpp*) # Portland Group C++ compiler case `$CC -V` in *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*) _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~ compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"' _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~ $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~ $RANLIB $oldlib' _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; *) # Version 6 and above use weak symbols _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; esac _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' ;; cxx*) # Compaq C++ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols' runpath_var=LD_RUN_PATH _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: # Commands to make compiler produce verbose output that lists # what "hidden" libraries, object files and flags are used when # linking a shared library. # # There doesn't appear to be a way to prevent this compiler from # explicitly linking system object files so we need to strip them # from the output so that they don't get included in the library # dependencies. output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; 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Jones dnl Copyright © 2009 Stefano Zacchiroli dnl Copyright © 2000-2005 Olivier Andrieu dnl Copyright © 2000-2005 Jean-Christophe Filliâtre dnl Copyright © 2000-2005 Georges Mariano dnl dnl For documentation, please read the ocaml.m4 man page. 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" >&6; } fi if ${lt_cv_path_LD+:} false; then : $as_echo_n "(cached) " >&6 else if test -z "$LD"; then lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR for ac_dir in $PATH; do IFS=$lt_save_ifs test -z "$ac_dir" && ac_dir=. if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then lt_cv_path_LD=$ac_dir/$ac_prog # Check to see if the program is GNU ld. I'd rather use --version, # but apparently some variants of GNU ld only accept -v. # Break only if it was the GNU/non-GNU ld that we prefer. case `"$lt_cv_path_LD" -v 2>&1 &5 $as_echo "$LD" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5 { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5 $as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; } if ${lt_cv_prog_gnu_ld+:} false; then : $as_echo_n "(cached) " >&6 else # I'd rather use --version here, but apparently some GNU lds only accept -v. case `$LD -v 2>&1 &5 $as_echo "$lt_cv_prog_gnu_ld" >&6; } with_gnu_ld=$lt_cv_prog_gnu_ld { $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5 $as_echo_n "checking for BSD- or MS-compatible name lister (nm)... 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" >&6; } if ${ac_cv_prog_DUMPBIN+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DUMPBIN"; then ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DUMPBIN=$ac_cv_prog_DUMPBIN if test -n "$DUMPBIN"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5 $as_echo "$DUMPBIN" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$DUMPBIN" && break done fi if test -z "$DUMPBIN"; then ac_ct_DUMPBIN=$DUMPBIN for ac_prog in dumpbin "link -dump" do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DUMPBIN"; then ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DUMPBIN="$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN if test -n "$ac_ct_DUMPBIN"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5 $as_echo "$ac_ct_DUMPBIN" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$ac_ct_DUMPBIN" && break done if test "x$ac_ct_DUMPBIN" = x; then DUMPBIN=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DUMPBIN=$ac_ct_DUMPBIN fi fi case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in *COFF*) DUMPBIN="$DUMPBIN -symbols -headers" ;; *) DUMPBIN=: ;; esac fi if test : != "$DUMPBIN"; then NM=$DUMPBIN fi fi test -z "$NM" && NM=nm { $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5 $as_echo_n "checking the name lister ($NM) interface... " >&6; } if ${lt_cv_nm_interface+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_nm_interface="BSD nm" echo "int some_variable = 0;" > conftest.$ac_ext (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5) (eval "$ac_compile" 2>conftest.err) cat conftest.err >&5 (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5) (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) cat conftest.err >&5 (eval echo "\"\$as_me:$LINENO: output\"" >&5) cat conftest.out >&5 if $GREP 'External.*some_variable' conftest.out > /dev/null; then lt_cv_nm_interface="MS dumpbin" fi rm -f conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5 $as_echo "$lt_cv_nm_interface" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5 $as_echo_n "checking whether ln -s works... 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Even if it were fixed, the result of this # check would be larger than it should be. lt_cv_sys_max_cmd_len=12288; # 12K is about right ;; gnu*) # Under GNU Hurd, this test is not required because there is # no limit to the length of command line arguments. # Libtool will interpret -1 as no limit whatsoever lt_cv_sys_max_cmd_len=-1; ;; cygwin* | mingw* | cegcc*) # On Win9x/ME, this test blows up -- it succeeds, but takes # about 5 minutes as the teststring grows exponentially. # Worse, since 9x/ME are not pre-emptively multitasking, # you end up with a "frozen" computer, even though with patience # the test eventually succeeds (with a max line length of 256k). # Instead, let's just punt: use the minimum linelength reported by # all of the supported platforms: 8192 (on NT/2K/XP). lt_cv_sys_max_cmd_len=8192; ;; mint*) # On MiNT this can take a long time and run out of memory. lt_cv_sys_max_cmd_len=8192; ;; amigaos*) # On AmigaOS with pdksh, this test takes hours, literally. # So we just punt and use a minimum line length of 8192. lt_cv_sys_max_cmd_len=8192; ;; bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*) # This has been around since 386BSD, at least. Likely further. if test -x /sbin/sysctl; then lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` elif test -x /usr/sbin/sysctl; then lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` else lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs fi # And add a safety zone lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` ;; interix*) # We know the value 262144 and hardcode it with a safety zone (like BSD) lt_cv_sys_max_cmd_len=196608 ;; os2*) # The test takes a long time on OS/2. lt_cv_sys_max_cmd_len=8192 ;; osf*) # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not # nice to cause kernel panics so lets avoid the loop below. # First set a reasonable default. lt_cv_sys_max_cmd_len=16384 # if test -x /sbin/sysconfig; then case `/sbin/sysconfig -q proc exec_disable_arg_limit` in *1*) lt_cv_sys_max_cmd_len=-1 ;; esac fi ;; sco3.2v5*) lt_cv_sys_max_cmd_len=102400 ;; sysv5* | sco5v6* | sysv4.2uw2*) kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` if test -n "$kargmax"; then lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` else lt_cv_sys_max_cmd_len=32768 fi ;; *) lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` if test -n "$lt_cv_sys_max_cmd_len" && \ test undefined != "$lt_cv_sys_max_cmd_len"; then lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` else # Make teststring a little bigger before we do anything with it. # a 1K string should be a reasonable start. for i in 1 2 3 4 5 6 7 8; do teststring=$teststring$teststring done SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} # If test is not a shell built-in, we'll probably end up computing a # maximum length that is only half of the actual maximum length, but # we can't tell. while { test X`env echo "$teststring$teststring" 2>/dev/null` \ = "X$teststring$teststring"; } >/dev/null 2>&1 && test 17 != "$i" # 1/2 MB should be enough do i=`expr $i + 1` teststring=$teststring$teststring done # Only check the string length outside the loop. lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` teststring= # Add a significant safety factor because C++ compilers can tack on # massive amounts of additional arguments before passing them to the # linker. It appears as though 1/2 is a usable value. lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` fi ;; esac fi if test -n "$lt_cv_sys_max_cmd_len"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5 $as_echo "$lt_cv_sys_max_cmd_len" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5 $as_echo "none" >&6; } fi max_cmd_len=$lt_cv_sys_max_cmd_len : ${CP="cp -f"} : ${MV="mv -f"} : ${RM="rm -f"} if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then lt_unset=unset else lt_unset=false fi # test EBCDIC or ASCII case `echo X|tr X '\101'` in A) # ASCII based system # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr lt_SP2NL='tr \040 \012' lt_NL2SP='tr \015\012 \040\040' ;; *) # EBCDIC based system lt_SP2NL='tr \100 \n' lt_NL2SP='tr \r\n \100\100' ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5 $as_echo_n "checking how to convert $build file names to $host format... 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" >&6; } if ${lt_cv_ld_reload_flag+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_reload_flag='-r' fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 $as_echo "$lt_cv_ld_reload_flag" >&6; } reload_flag=$lt_cv_ld_reload_flag case $reload_flag in "" | " "*) ;; *) reload_flag=" $reload_flag" ;; esac reload_cmds='$LD$reload_flag -o $output$reload_objs' case $host_os in cygwin* | mingw* | pw32* | cegcc*) if test yes != "$GCC"; then reload_cmds=false fi ;; darwin*) if test yes = "$GCC"; then reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs' else reload_cmds='$LD$reload_flag -o $output$reload_objs' fi ;; esac if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. set dummy ${ac_tool_prefix}objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OBJDUMP"; then ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OBJDUMP=$ac_cv_prog_OBJDUMP if test -n "$OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 $as_echo "$OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OBJDUMP"; then ac_ct_OBJDUMP=$OBJDUMP # Extract the first word of "objdump", so it can be a program name with args. set dummy objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OBJDUMP"; then ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OBJDUMP="objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP if test -n "$ac_ct_OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 $as_echo "$ac_ct_OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OBJDUMP" = x; then OBJDUMP="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OBJDUMP=$ac_ct_OBJDUMP fi else OBJDUMP="$ac_cv_prog_OBJDUMP" fi test -z "$OBJDUMP" && OBJDUMP=objdump { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 $as_echo_n "checking how to recognize dependent libraries... " >&6; } if ${lt_cv_deplibs_check_method+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_file_magic_cmd='$MAGIC_CMD' lt_cv_file_magic_test_file= lt_cv_deplibs_check_method='unknown' # Need to set the preceding variable on all platforms that support # interlibrary dependencies. # 'none' -- dependencies not supported. # 'unknown' -- same as none, but documents that we really don't know. # 'pass_all' -- all dependencies passed with no checks. # 'test_compile' -- check by making test program. # 'file_magic [[regex]]' -- check by looking for files in library path # that responds to the $file_magic_cmd with a given extended regex. # If you have 'file' or equivalent on your system and you're not sure # whether 'pass_all' will *always* work, you probably want this one. case $host_os in aix[4-9]*) lt_cv_deplibs_check_method=pass_all ;; beos*) lt_cv_deplibs_check_method=pass_all ;; bsdi[45]*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' lt_cv_file_magic_cmd='/usr/bin/file -L' lt_cv_file_magic_test_file=/shlib/libc.so ;; cygwin*) # func_win32_libid is a shell function defined in ltmain.sh lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' ;; mingw* | pw32*) # Base MSYS/MinGW do not provide the 'file' command needed by # func_win32_libid shell function, so use a weaker test based on 'objdump', # unless we find 'file', for example because we are cross-compiling. if ( file / ) >/dev/null 2>&1; then lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' else # Keep this pattern in sync with the one in func_win32_libid. lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' lt_cv_file_magic_cmd='$OBJDUMP -f' fi ;; cegcc*) # use the weaker test based on 'objdump'. See mingw*. lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' lt_cv_file_magic_cmd='$OBJDUMP -f' ;; darwin* | rhapsody*) lt_cv_deplibs_check_method=pass_all ;; freebsd* | dragonfly*) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then case $host_cpu in i*86 ) # Not sure whether the presence of OpenBSD here was a mistake. # Let's accept both of them until this is cleared up. lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` ;; esac else lt_cv_deplibs_check_method=pass_all fi ;; haiku*) lt_cv_deplibs_check_method=pass_all ;; hpux10.20* | hpux11*) lt_cv_file_magic_cmd=/usr/bin/file case $host_cpu in ia64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so ;; hppa*64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl ;; *) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' lt_cv_file_magic_test_file=/usr/lib/libc.sl ;; esac ;; interix[3-9]*) # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' ;; irix5* | irix6* | nonstopux*) case $LD in *-32|*"-32 ") libmagic=32-bit;; *-n32|*"-n32 ") libmagic=N32;; *-64|*"-64 ") libmagic=64-bit;; *) libmagic=never-match;; esac lt_cv_deplibs_check_method=pass_all ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) lt_cv_deplibs_check_method=pass_all ;; netbsd*) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' fi ;; newos6*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=/usr/lib/libnls.so ;; *nto* | *qnx*) lt_cv_deplibs_check_method=pass_all ;; openbsd* | bitrig*) if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' fi ;; osf3* | osf4* | osf5*) lt_cv_deplibs_check_method=pass_all ;; rdos*) lt_cv_deplibs_check_method=pass_all ;; solaris*) lt_cv_deplibs_check_method=pass_all ;; sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) lt_cv_deplibs_check_method=pass_all ;; sysv4 | sysv4.3*) case $host_vendor in motorola) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` ;; ncr) lt_cv_deplibs_check_method=pass_all ;; sequent) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' ;; sni) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" lt_cv_file_magic_test_file=/lib/libc.so ;; siemens) lt_cv_deplibs_check_method=pass_all ;; pc) lt_cv_deplibs_check_method=pass_all ;; esac ;; tpf*) lt_cv_deplibs_check_method=pass_all ;; os2*) lt_cv_deplibs_check_method=pass_all ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 $as_echo "$lt_cv_deplibs_check_method" >&6; } file_magic_glob= want_nocaseglob=no if test "$build" = "$host"; then case $host_os in mingw* | pw32*) if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then want_nocaseglob=yes else file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"` fi ;; esac fi file_magic_cmd=$lt_cv_file_magic_cmd deplibs_check_method=$lt_cv_deplibs_check_method test -z "$deplibs_check_method" && deplibs_check_method=unknown if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. set dummy ${ac_tool_prefix}dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DLLTOOL"; then ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DLLTOOL=$ac_cv_prog_DLLTOOL if test -n "$DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 $as_echo "$DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DLLTOOL"; then ac_ct_DLLTOOL=$DLLTOOL # Extract the first word of "dlltool", so it can be a program name with args. set dummy dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DLLTOOL"; then ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DLLTOOL="dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL if test -n "$ac_ct_DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 $as_echo "$ac_ct_DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DLLTOOL" = x; then DLLTOOL="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DLLTOOL=$ac_ct_DLLTOOL fi else DLLTOOL="$ac_cv_prog_DLLTOOL" fi test -z "$DLLTOOL" && DLLTOOL=dlltool { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5 $as_echo_n "checking how to associate runtime and link libraries... " >&6; } if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_sharedlib_from_linklib_cmd='unknown' case $host_os in cygwin* | mingw* | pw32* | cegcc*) # two different shell functions defined in ltmain.sh; # decide which one to use based on capabilities of $DLLTOOL case `$DLLTOOL --help 2>&1` in *--identify-strict*) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib ;; *) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback ;; esac ;; *) # fallback: assume linklib IS sharedlib lt_cv_sharedlib_from_linklib_cmd=$ECHO ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5 $as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; } sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO if test -n "$ac_tool_prefix"; then for ac_prog in ar do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$AR"; then ac_cv_prog_AR="$AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_AR="$ac_tool_prefix$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi AR=$ac_cv_prog_AR if test -n "$AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 $as_echo "$AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$AR" && break done fi if test -z "$AR"; then ac_ct_AR=$AR for ac_prog in ar do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_AR"; then ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_AR="$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_AR=$ac_cv_prog_ac_ct_AR if test -n "$ac_ct_AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 $as_echo "$ac_ct_AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$ac_ct_AR" && break done if test "x$ac_ct_AR" = x; then AR="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac AR=$ac_ct_AR fi fi : ${AR=ar} : ${AR_FLAGS=cru} { $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5 $as_echo_n "checking for archiver @FILE support... " >&6; } if ${lt_cv_ar_at_file+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ar_at_file=no cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : echo conftest.$ac_objext > conftest.lst lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5' { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -eq "$ac_status"; then # Ensure the archiver fails upon bogus file names. rm -f conftest.$ac_objext libconftest.a { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -ne "$ac_status"; then lt_cv_ar_at_file=@ fi fi rm -f conftest.* libconftest.a fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5 $as_echo "$lt_cv_ar_at_file" >&6; } if test no = "$lt_cv_ar_at_file"; then archiver_list_spec= else archiver_list_spec=$lt_cv_ar_at_file fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. set dummy ${ac_tool_prefix}strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$STRIP"; then ac_cv_prog_STRIP="$STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_STRIP="${ac_tool_prefix}strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi STRIP=$ac_cv_prog_STRIP if test -n "$STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 $as_echo "$STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_STRIP"; then ac_ct_STRIP=$STRIP # Extract the first word of "strip", so it can be a program name with args. set dummy strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_STRIP"; then ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_STRIP="strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP if test -n "$ac_ct_STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 $as_echo "$ac_ct_STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_STRIP" = x; then STRIP=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac STRIP=$ac_ct_STRIP fi else STRIP="$ac_cv_prog_STRIP" fi test -z "$STRIP" && STRIP=: if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. set dummy ${ac_tool_prefix}ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$RANLIB"; then ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi RANLIB=$ac_cv_prog_RANLIB if test -n "$RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 $as_echo "$RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_RANLIB"; then ac_ct_RANLIB=$RANLIB # Extract the first word of "ranlib", so it can be a program name with args. set dummy ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_RANLIB"; then ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_RANLIB="ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB if test -n "$ac_ct_RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 $as_echo "$ac_ct_RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_RANLIB" = x; then RANLIB=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac RANLIB=$ac_ct_RANLIB fi else RANLIB="$ac_cv_prog_RANLIB" fi test -z "$RANLIB" && RANLIB=: # Determine commands to create old-style static archives. old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' old_postinstall_cmds='chmod 644 $oldlib' old_postuninstall_cmds= if test -n "$RANLIB"; then case $host_os in bitrig* | openbsd*) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" ;; *) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" ;; esac old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" fi case $host_os in darwin*) lock_old_archive_extraction=yes ;; *) lock_old_archive_extraction=no ;; esac # If no C compiler was specified, use CC. LTCC=${LTCC-"$CC"} # If no C compiler flags were specified, use CFLAGS. LTCFLAGS=${LTCFLAGS-"$CFLAGS"} # Allow CC to be a program name with arguments. compiler=$CC # Check for command to grab the raw symbol name followed by C symbol from nm. { $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 $as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } if ${lt_cv_sys_global_symbol_pipe+:} false; then : $as_echo_n "(cached) " >&6 else # These are sane defaults that work on at least a few old systems. # [They come from Ultrix. What could be older than Ultrix?!! ;)] # Character class describing NM global symbol codes. symcode='[BCDEGRST]' # Regexp to match symbols that can be accessed directly from C. sympat='\([_A-Za-z][_A-Za-z0-9]*\)' # Define system-specific variables. case $host_os in aix*) symcode='[BCDT]' ;; cygwin* | mingw* | pw32* | cegcc*) symcode='[ABCDGISTW]' ;; hpux*) if test ia64 = "$host_cpu"; then symcode='[ABCDEGRST]' fi ;; irix* | nonstopux*) symcode='[BCDEGRST]' ;; osf*) symcode='[BCDEGQRST]' ;; solaris*) symcode='[BDRT]' ;; sco3.2v5*) symcode='[DT]' ;; sysv4.2uw2*) symcode='[DT]' ;; sysv5* | sco5v6* | unixware* | OpenUNIX*) symcode='[ABDT]' ;; sysv4) symcode='[DFNSTU]' ;; esac # If we're using GNU nm, then use its standard symbol codes. case `$NM -V 2>&1` in *GNU* | *'with BFD'*) symcode='[ABCDGIRSTW]' ;; esac if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Gets list of data symbols to import. lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" # Adjust the below global symbol transforms to fixup imported variables. lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" lt_c_name_lib_hook="\ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" else # Disable hooks by default. lt_cv_sys_global_symbol_to_import= lt_cdecl_hook= lt_c_name_hook= lt_c_name_lib_hook= fi # Transform an extracted symbol line into a proper C declaration. # Some systems (esp. on ia64) link data and code symbols differently, # so use this general approach. lt_cv_sys_global_symbol_to_cdecl="sed -n"\ $lt_cdecl_hook\ " -e 's/^T .* \(.*\)$/extern int \1();/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" # Transform an extracted symbol line into symbol name and symbol address lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ $lt_c_name_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" # Transform an extracted symbol line into symbol name with lib prefix and # symbol address. lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ $lt_c_name_lib_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" # Handle CRLF in mingw tool chain opt_cr= case $build_os in mingw*) opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp ;; esac # Try without a prefix underscore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Fake it for dumpbin and say T for any non-static function, # D for any global variable and I for any imported variable. # Also find C++ and __fastcall symbols from MSVC++, # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK '"\ " {last_section=section; section=\$ 3};"\ " /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ " /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ " /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ " {if(hide[section]) next};"\ " {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ " {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ " s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ " s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ " ' prfx=^$ac_symprfx" else lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" fi lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" # Check to see that the pipe works correctly. pipe_works=no rm -f conftest* cat > conftest.$ac_ext <<_LT_EOF #ifdef __cplusplus extern "C" { #endif char nm_test_var; void nm_test_func(void); void nm_test_func(void){} #ifdef __cplusplus } #endif int main(){nm_test_var='a';nm_test_func();return(0);} _LT_EOF if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then # Now try to grab the symbols. nlist=conftest.nm if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s "$nlist"; then # Try sorting and uniquifying the output. if sort "$nlist" | uniq > "$nlist"T; then mv -f "$nlist"T "$nlist" else rm -f "$nlist"T fi # Make sure that we snagged all the symbols we need. if $GREP ' nm_test_var$' "$nlist" >/dev/null; then if $GREP ' nm_test_func$' "$nlist" >/dev/null; then cat <<_LT_EOF > conftest.$ac_ext /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT_DLSYM_CONST #else # define LT_DLSYM_CONST const #endif #ifdef __cplusplus extern "C" { #endif _LT_EOF # Now generate the symbol file. eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' cat <<_LT_EOF >> conftest.$ac_ext /* The mapping between symbol names and symbols. */ LT_DLSYM_CONST struct { const char *name; void *address; } lt__PROGRAM__LTX_preloaded_symbols[] = { { "@PROGRAM@", (void *) 0 }, _LT_EOF $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext cat <<\_LT_EOF >> conftest.$ac_ext {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt__PROGRAM__LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif _LT_EOF # Now try linking the two files. mv conftest.$ac_objext conftstm.$ac_objext lt_globsym_save_LIBS=$LIBS lt_globsym_save_CFLAGS=$CFLAGS LIBS=conftstm.$ac_objext CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 (eval $ac_link) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s conftest$ac_exeext; then pipe_works=yes fi LIBS=$lt_globsym_save_LIBS CFLAGS=$lt_globsym_save_CFLAGS else echo "cannot find nm_test_func in $nlist" >&5 fi else echo "cannot find nm_test_var in $nlist" >&5 fi else echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 fi else echo "$progname: failed program was:" >&5 cat conftest.$ac_ext >&5 fi rm -rf conftest* conftst* # Do not use the global_symbol_pipe unless it works. if test yes = "$pipe_works"; then break else lt_cv_sys_global_symbol_pipe= fi done fi if test -z "$lt_cv_sys_global_symbol_pipe"; then lt_cv_sys_global_symbol_to_cdecl= fi if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 $as_echo "failed" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 $as_echo "ok" >&6; } fi # Response file support. if test "$lt_cv_nm_interface" = "MS dumpbin"; then nm_file_list_spec='@' elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then nm_file_list_spec='@' fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5 $as_echo_n "checking for sysroot... " >&6; } # Check whether --with-sysroot was given. if test "${with_sysroot+set}" = set; then : withval=$with_sysroot; else with_sysroot=no fi lt_sysroot= case $with_sysroot in #( yes) if test yes = "$GCC"; then lt_sysroot=`$CC --print-sysroot 2>/dev/null` fi ;; #( /*) lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` ;; #( no|'') ;; #( *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5 $as_echo "$with_sysroot" >&6; } as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5 ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5 $as_echo "${lt_sysroot:-no}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5 $as_echo_n "checking for a working dd... " >&6; } if ${ac_cv_path_lt_DD+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i : ${lt_DD:=$DD} if test -z "$lt_DD"; then ac_path_lt_DD_found=false # Loop through the user's path and test for each of PROGNAME-LIST as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_prog in dd; do for ac_exec_ext in '' $ac_executable_extensions; do ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext" as_fn_executable_p "$ac_path_lt_DD" || continue if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: fi $ac_path_lt_DD_found && break 3 done done done IFS=$as_save_IFS if test -z "$ac_cv_path_lt_DD"; then : fi else ac_cv_path_lt_DD=$lt_DD fi rm -f conftest.i conftest2.i conftest.out fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5 $as_echo "$ac_cv_path_lt_DD" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5 $as_echo_n "checking how to truncate binary pipes... " >&6; } if ${lt_cv_truncate_bin+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i lt_cv_truncate_bin= if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" fi rm -f conftest.i conftest2.i conftest.out test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5 $as_echo "$lt_cv_truncate_bin" >&6; } # Calculate cc_basename. Skip known compiler wrappers and cross-prefix. func_cc_basename () { for cc_temp in $*""; do case $cc_temp in compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; \-*) ;; *) break;; esac done func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` } # Check whether --enable-libtool-lock was given. if test "${enable_libtool_lock+set}" = set; then : enableval=$enable_libtool_lock; fi test no = "$enable_libtool_lock" || enable_libtool_lock=yes # Some flags need to be propagated to the compiler or linker for good # libtool support. case $host in ia64-*-hpux*) # Find out what ABI is being produced by ac_compile, and set mode # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.$ac_objext` in *ELF-32*) HPUX_IA64_MODE=32 ;; *ELF-64*) HPUX_IA64_MODE=64 ;; esac fi rm -rf conftest* ;; *-*-irix6*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then if test yes = "$lt_cv_prog_gnu_ld"; then case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -melf32bsmip" ;; *N32*) LD="${LD-ld} -melf32bmipn32" ;; *64-bit*) LD="${LD-ld} -melf64bmip" ;; esac else case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -32" ;; *N32*) LD="${LD-ld} -n32" ;; *64-bit*) LD="${LD-ld} -64" ;; esac fi fi rm -rf conftest* ;; mips64*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then emul=elf case `/usr/bin/file conftest.$ac_objext` in *32-bit*) emul="${emul}32" ;; *64-bit*) emul="${emul}64" ;; esac case `/usr/bin/file conftest.$ac_objext` in *MSB*) emul="${emul}btsmip" ;; *LSB*) emul="${emul}ltsmip" ;; esac case `/usr/bin/file conftest.$ac_objext` in *N32*) emul="${emul}n32" ;; esac LD="${LD-ld} -m $emul" fi rm -rf conftest* ;; x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ s390*-*linux*|s390*-*tpf*|sparc*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. Note that the listed cases only cover the # situations where additional linker options are needed (such as when # doing 32-bit compilation for a host where ld defaults to 64-bit, or # vice versa); the common cases where no linker options are needed do # not appear in the list. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *32-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_i386_fbsd" ;; x86_64-*linux*) case `/usr/bin/file conftest.o` in *x86-64*) LD="${LD-ld} -m elf32_x86_64" ;; *) LD="${LD-ld} -m elf_i386" ;; esac ;; powerpc64le-*linux*) LD="${LD-ld} -m elf32lppclinux" ;; powerpc64-*linux*) LD="${LD-ld} -m elf32ppclinux" ;; s390x-*linux*) LD="${LD-ld} -m elf_s390" ;; sparc64-*linux*) LD="${LD-ld} -m elf32_sparc" ;; esac ;; *64-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_x86_64_fbsd" ;; x86_64-*linux*) LD="${LD-ld} -m elf_x86_64" ;; powerpcle-*linux*) LD="${LD-ld} -m elf64lppc" ;; powerpc-*linux*) LD="${LD-ld} -m elf64ppc" ;; s390*-*linux*|s390*-*tpf*) LD="${LD-ld} -m elf64_s390" ;; sparc*-*linux*) LD="${LD-ld} -m elf64_sparc" ;; esac ;; esac fi rm -rf conftest* ;; *-*-sco3.2v5*) # On SCO OpenServer 5, we need -belf to get full-featured binaries. SAVE_CFLAGS=$CFLAGS CFLAGS="$CFLAGS -belf" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 $as_echo_n "checking whether the C compiler needs -belf... " >&6; } if ${lt_cv_cc_needs_belf+:} false; then : $as_echo_n "(cached) " >&6 else ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_cv_cc_needs_belf=yes else lt_cv_cc_needs_belf=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 $as_echo "$lt_cv_cc_needs_belf" >&6; } if test yes != "$lt_cv_cc_needs_belf"; then # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf CFLAGS=$SAVE_CFLAGS fi ;; *-*solaris*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *64-bit*) case $lt_cv_prog_gnu_ld in yes*) case $host in i?86-*-solaris*|x86_64-*-solaris*) LD="${LD-ld} -m elf_x86_64" ;; sparc*-*-solaris*) LD="${LD-ld} -m elf64_sparc" ;; esac # GNU ld 2.21 introduced _sol2 emulations. Use them if available. if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then LD=${LD-ld}_sol2 fi ;; *) if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then LD="${LD-ld} -64" fi ;; esac ;; esac fi rm -rf conftest* ;; esac need_locks=$enable_libtool_lock if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args. set dummy ${ac_tool_prefix}mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$MANIFEST_TOOL"; then ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL if test -n "$MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5 $as_echo "$MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_MANIFEST_TOOL"; then ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL # Extract the first word of "mt", so it can be a program name with args. set dummy mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_MANIFEST_TOOL"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL if test -n "$ac_ct_MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5 $as_echo "$ac_ct_MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_MANIFEST_TOOL" = x; then MANIFEST_TOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL fi else MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL" fi test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5 $as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; } if ${lt_cv_path_mainfest_tool+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_path_mainfest_tool=no echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5 $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out cat conftest.err >&5 if $GREP 'Manifest Tool' conftest.out > /dev/null; then lt_cv_path_mainfest_tool=yes fi rm -f conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5 $as_echo "$lt_cv_path_mainfest_tool" >&6; } if test yes != "$lt_cv_path_mainfest_tool"; then MANIFEST_TOOL=: fi case $host_os in rhapsody* | darwin*) if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DSYMUTIL"; then ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DSYMUTIL=$ac_cv_prog_DSYMUTIL if test -n "$DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 $as_echo "$DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DSYMUTIL"; then ac_ct_DSYMUTIL=$DSYMUTIL # Extract the first word of "dsymutil", so it can be a program name with args. set dummy dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DSYMUTIL"; then ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL if test -n "$ac_ct_DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 $as_echo "$ac_ct_DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DSYMUTIL" = x; then DSYMUTIL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DSYMUTIL=$ac_ct_DSYMUTIL fi else DSYMUTIL="$ac_cv_prog_DSYMUTIL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. set dummy ${ac_tool_prefix}nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$NMEDIT"; then ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi NMEDIT=$ac_cv_prog_NMEDIT if test -n "$NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 $as_echo "$NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_NMEDIT"; then ac_ct_NMEDIT=$NMEDIT # Extract the first word of "nmedit", so it can be a program name with args. set dummy nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_NMEDIT"; then ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_NMEDIT="nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT if test -n "$ac_ct_NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 $as_echo "$ac_ct_NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_NMEDIT" = x; then NMEDIT=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac NMEDIT=$ac_ct_NMEDIT fi else NMEDIT="$ac_cv_prog_NMEDIT" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. set dummy ${ac_tool_prefix}lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$LIPO"; then ac_cv_prog_LIPO="$LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_LIPO="${ac_tool_prefix}lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi LIPO=$ac_cv_prog_LIPO if test -n "$LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 $as_echo "$LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_LIPO"; then ac_ct_LIPO=$LIPO # Extract the first word of "lipo", so it can be a program name with args. set dummy lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_LIPO"; then ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_LIPO="lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO if test -n "$ac_ct_LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 $as_echo "$ac_ct_LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_LIPO" = x; then LIPO=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac LIPO=$ac_ct_LIPO fi else LIPO="$ac_cv_prog_LIPO" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. set dummy ${ac_tool_prefix}otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL"; then ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL="${ac_tool_prefix}otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL=$ac_cv_prog_OTOOL if test -n "$OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 $as_echo "$OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL"; then ac_ct_OTOOL=$OTOOL # Extract the first word of "otool", so it can be a program name with args. set dummy otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL"; then ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL="otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL if test -n "$ac_ct_OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 $as_echo "$ac_ct_OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL" = x; then OTOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL=$ac_ct_OTOOL fi else OTOOL="$ac_cv_prog_OTOOL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. set dummy ${ac_tool_prefix}otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL64"; then ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL64=$ac_cv_prog_OTOOL64 if test -n "$OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 $as_echo "$OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL64"; then ac_ct_OTOOL64=$OTOOL64 # Extract the first word of "otool64", so it can be a program name with args. set dummy otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL64"; then ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL64="otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 if test -n "$ac_ct_OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 $as_echo "$ac_ct_OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL64" = x; then OTOOL64=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL64=$ac_ct_OTOOL64 fi else OTOOL64="$ac_cv_prog_OTOOL64" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 $as_echo_n "checking for -single_module linker flag... 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"Unknown argument to --with-aix-soname" "$LINENO" 5 ;; esac lt_cv_with_aix_soname=$with_aix_soname else if ${lt_cv_with_aix_soname+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_with_aix_soname=aix fi with_aix_soname=$lt_cv_with_aix_soname fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5 $as_echo "$with_aix_soname" >&6; } if test aix != "$with_aix_soname"; then # For the AIX way of multilib, we name the shared archive member # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, # the AIX toolchain works better with OBJECT_MODE set (default 32). if test 64 = "${OBJECT_MODE-32}"; then shared_archive_member_spec=shr_64 else shared_archive_member_spec=shr fi fi ;; *) with_aix_soname=aix ;; esac # This can be used to rebuild libtool when needed LIBTOOL_DEPS=$ltmain # Always use our own libtool. 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then : lt_aix_libpath_sed=' /Import File Strings/,/^$/ { /^0/ { s/^0 *\([^ ]*\) *$/\1/ p } }' lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` # Check for a 64-bit object if we didn't find anything. if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=/usr/lib:/lib fi fi aix_libpath=$lt_cv_aix_libpath_ fi hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag else if test ia64 = "$host_cpu"; then hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib' allow_undefined_flag="-z nodefs" archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" else # Determine the default libpath from the value encoded in an # empty executable. if test set = "${lt_cv_aix_libpath+set}"; then aix_libpath=$lt_cv_aix_libpath else if ${lt_cv_aix_libpath_+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_aix_libpath_sed=' /Import File Strings/,/^$/ { /^0/ { s/^0 *\([^ ]*\) *$/\1/ p } }' lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` # Check for a 64-bit object if we didn't find anything. if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"` fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test -z "$lt_cv_aix_libpath_"; then lt_cv_aix_libpath_=/usr/lib:/lib fi fi aix_libpath=$lt_cv_aix_libpath_ fi hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath" # Warning - without using the other run time loading flags, # -berok will link without error, but may produce a broken library. no_undefined_flag=' $wl-bernotok' allow_undefined_flag=' $wl-berok' if test yes = "$with_gnu_ld"; then # We only use this code for GNU lds that support --whole-archive. whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive' else # Exported symbols can be pulled into shared objects from archives whole_archive_flag_spec='$convenience' fi archive_cmds_need_lc=yes archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' # -brtl affects multiple linker settings, -berok does not and is overridden later compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`' if test svr4 != "$with_aix_soname"; then # This is similar to how AIX traditionally builds its shared libraries. archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' fi if test aix != "$with_aix_soname"; then archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' else # used by -dlpreopen to get the symbols archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir' fi archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d' fi fi ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' archive_expsym_cmds='' ;; m68k) archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' hardcode_libdir_flag_spec='-L$libdir' hardcode_minus_L=yes ;; esac ;; bsdi[45]*) export_dynamic_flag_spec=-rdynamic ;; cygwin* | mingw* | pw32* | cegcc*) # When not using gcc, we currently assume that we are using # Microsoft Visual C++. # hardcode_libdir_flag_spec is actually meaningless, as there is # no search path for DLLs. case $cc_basename in cl*) # Native MSVC hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported always_export_symbols=yes file_list_spec='@' # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then cp "$export_symbols" "$output_objdir/$soname.def"; echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; else $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; fi~ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ linknames=' # The linker will not automatically build a static lib if we build a DLL. # _LT_TAGVAR(old_archive_from_new_cmds, )='true' enable_shared_with_static_runtimes=yes exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' # Don't use ranlib old_postinstall_cmds='chmod 644 $oldlib' postlink_cmds='lt_outputfile="@OUTPUT@"~ lt_tool_outputfile="@TOOL_OUTPUT@"~ case $lt_outputfile in *.exe|*.EXE) ;; *) lt_outputfile=$lt_outputfile.exe lt_tool_outputfile=$lt_tool_outputfile.exe ;; esac~ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; $RM "$lt_outputfile.manifest"; fi' ;; *) # Assume MSVC wrapper hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' # The linker will automatically build a .lib file if we build a DLL. old_archive_from_new_cmds='true' # FIXME: Should let the user specify the lib program. old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' enable_shared_with_static_runtimes=yes ;; esac ;; darwin* | rhapsody*) archive_cmds_need_lc=no hardcode_direct=no hardcode_automatic=yes hardcode_shlibpath_var=unsupported if test yes = "$lt_cv_ld_force_load"; then whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' else whole_archive_flag_spec='' fi link_all_deplibs=yes allow_undefined_flag=$_lt_dar_allow_undefined case $cc_basename in ifort*|nagfor*) _lt_dar_can_shared=yes ;; *) _lt_dar_can_shared=$GCC ;; esac if test yes = "$_lt_dar_can_shared"; then output_verbose_link_cmd=func_echo_all archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" else ld_shlibs=no fi ;; dgux*) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_libdir_flag_spec='-L$libdir' hardcode_shlibpath_var=no ;; # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor # support. 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linux*) case $cc_basename in tcc*) # Fabrice Bellard et al's Tiny C Compiler ld_shlibs=yes archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' ;; esac ;; netbsd*) if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out else archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF fi hardcode_libdir_flag_spec='-R$libdir' hardcode_direct=yes hardcode_shlibpath_var=no ;; newsos6) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_direct=yes hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' hardcode_libdir_separator=: hardcode_shlibpath_var=no ;; *nto* | *qnx*) ;; openbsd* | bitrig*) if test -f /usr/libexec/ld.so; then hardcode_direct=yes hardcode_shlibpath_var=no hardcode_direct_absolute=yes if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' hardcode_libdir_flag_spec='$wl-rpath,$libdir' export_dynamic_flag_spec='$wl-E' else archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' hardcode_libdir_flag_spec='$wl-rpath,$libdir' fi else ld_shlibs=no fi ;; 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fi~ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ emximp -o $lib $output_objdir/$libname.def' old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' enable_shared_with_static_runtimes=yes ;; osf3*) if test yes = "$GCC"; then allow_undefined_flag=' $wl-expect_unresolved $wl\*' archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' else allow_undefined_flag=' -expect_unresolved \*' archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' fi archive_cmds_need_lc='no' hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' hardcode_libdir_separator=: ;; 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The import file would start with # the line '#! .'. This would cause the generated library to # depend on '.', always an invalid library. This was fixed in # development snapshots of GCC prior to 3.0. case $host_os in aix4 | aix4.[01] | aix4.[01].*) if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' echo ' yes ' echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then : else can_build_shared=no fi ;; esac # Using Import Files as archive members, it is possible to support # filename-based versioning of shared library archives on AIX. While # this would work for both with and without runtime linking, it will # prevent static linking of such archives. So we do filename-based # shared library versioning with .so extension only, which is used # when both runtime linking and shared linking is enabled. # Unfortunately, runtime linking may impact performance, so we do # not want this to be the default eventually. Also, we use the # versioned .so libs for executables only if there is the -brtl # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only. # To allow for filename-based versioning support, we need to create # libNAME.so.V as an archive file, containing: # *) an Import File, referring to the versioned filename of the # archive as well as the shared archive member, telling the # bitwidth (32 or 64) of that shared object, and providing the # list of exported symbols of that shared object, eventually # decorated with the 'weak' keyword # *) the shared object with the F_LOADONLY flag set, to really avoid # it being seen by the linker. # At run time we better use the real file rather than another symlink, # but for link time we create the symlink libNAME.so -> libNAME.so.V case $with_aix_soname,$aix_use_runtimelinking in # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct # soname into executable. Probably we can add versioning support to # collect2, so additional links can be useful in future. aix,yes) # traditional libtool dynamic_linker='AIX unversionable lib.so' # If using run time linking (on AIX 4.2 or later) use lib.so # instead of lib.a to let people know that these are not # typical AIX shared libraries. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' ;; aix,no) # traditional AIX only dynamic_linker='AIX lib.a(lib.so.V)' # We preserve .a as extension for shared libraries through AIX4.2 # and later when we are not doing run time linking. library_names_spec='$libname$release.a $libname.a' soname_spec='$libname$release$shared_ext$major' ;; svr4,*) # full svr4 only dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)" library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' # We do not specify a path in Import Files, so LIBPATH fires. shlibpath_overrides_runpath=yes ;; *,yes) # both, prefer svr4 dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)" library_names_spec='$libname$release$shared_ext$major $libname$shared_ext' # unpreferred sharedlib libNAME.a needs extra handling postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"' postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"' # We do not specify a path in Import Files, so LIBPATH fires. shlibpath_overrides_runpath=yes ;; *,no) # both, prefer aix dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)" library_names_spec='$libname$release.a $libname.a' soname_spec='$libname$release$shared_ext$major' # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)' postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"' ;; esac shlibpath_var=LIBPATH fi ;; amigaos*) case $host_cpu in powerpc) # Since July 2007 AmigaOS4 officially supports .so libraries. # When compiling the executable, add -use-dynld -Lsobjs: to the compileline. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' ;; m68k) library_names_spec='$libname.ixlibrary $libname.a' # Create ${libname}_ixlibrary.a entries in /sys/libs. finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done' ;; esac ;; beos*) library_names_spec='$libname$shared_ext' dynamic_linker="$host_os ld.so" shlibpath_var=LIBRARY_PATH ;; bsdi[45]*) version_type=linux # correct to gnu/linux during the next big refactor need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir' shlibpath_var=LD_LIBRARY_PATH sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib" sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib" # the default ld.so.conf also contains /usr/contrib/lib and # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow # libtool to hard-code these into programs ;; cygwin* | mingw* | pw32* | cegcc*) version_type=windows shrext_cmds=.dll need_version=no need_lib_prefix=no case $GCC,$cc_basename in yes,*) # gcc library_names_spec='$libname.dll.a' # DLL is installed to $(libdir)/../bin by postinstall_cmds postinstall_cmds='base_file=`basename \$file`~ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~ dldir=$destdir/`dirname \$dlpath`~ test -d \$dldir || mkdir -p \$dldir~ $install_prog $dir/$dlname \$dldir/$dlname~ chmod a+x \$dldir/$dlname~ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then eval '\''$striplib \$dldir/$dlname'\'' || exit \$?; fi' postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~ dlpath=$dir/\$dldll~ $RM \$dlpath' shlibpath_overrides_runpath=yes case $host_os in cygwin*) # Cygwin DLLs use 'cyg' prefix rather than 'lib' soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext' sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api" ;; 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esac ;; haiku*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no dynamic_linker="$host_os runtime_loader" library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LIBRARY_PATH shlibpath_overrides_runpath=no sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' hardcode_into_libs=yes ;; hpux9* | hpux10* | hpux11*) # Give a soname corresponding to the major version so that dld.sl refuses to # link against other versions. version_type=sunos need_lib_prefix=no need_version=no case $host_cpu in ia64*) shrext_cmds='.so' hardcode_into_libs=yes dynamic_linker="$host_os dld.so" shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' if test 32 = "$HPUX_IA64_MODE"; then sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" sys_lib_dlsearch_path_spec=/usr/lib/hpux32 else sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" sys_lib_dlsearch_path_spec=/usr/lib/hpux64 fi ;; hppa*64*) shrext_cmds='.sl' hardcode_into_libs=yes dynamic_linker="$host_os dld.sl" shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec ;; *) shrext_cmds='.sl' dynamic_linker="$host_os dld.sl" shlibpath_var=SHLIB_PATH shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' ;; esac # HP-UX runs *really* slowly unless shared libraries are mode 555, ... postinstall_cmds='chmod 555 $lib' # or fails outright, so override atomically: install_override_mode=555 ;; interix[3-9]*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; irix5* | irix6* | nonstopux*) case $host_os in nonstopux*) version_type=nonstopux ;; *) if test yes = "$lt_cv_prog_gnu_ld"; then version_type=linux # correct to gnu/linux during the next big refactor else version_type=irix fi ;; esac need_lib_prefix=no need_version=no soname_spec='$libname$release$shared_ext$major' library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' case $host_os in irix5* | nonstopux*) libsuff= shlibsuff= ;; *) case $LD in # libtool.m4 will add one of these switches to LD *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= libmagic=32-bit;; *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 libmagic=N32;; *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 libmagic=64-bit;; *) libsuff= shlibsuff= libmagic=never-match;; esac ;; esac shlibpath_var=LD_LIBRARY${shlibsuff}_PATH shlibpath_overrides_runpath=no sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; linux*android*) version_type=none # Android doesn't support versioned libraries. need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext' soname_spec='$libname$release$shared_ext' finish_cmds= shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes dynamic_linker='Android linker' # Don't embed -rpath directories since the linker doesn't support them. hardcode_libdir_flag_spec='-L$libdir' ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no # Some binutils ld are patched to set DT_RUNPATH if ${lt_cv_shlibpath_overrides_runpath+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_shlibpath_overrides_runpath=no save_LDFLAGS=$LDFLAGS save_libdir=$libdir eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \ LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\"" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then : lt_cv_shlibpath_overrides_runpath=yes fi fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LDFLAGS=$save_LDFLAGS libdir=$save_libdir fi shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes # Add ABI-specific directories to the system library path. sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib" # Ideally, we could use ldconfig to report *all* directores which are # searched for libraries, however this is still not possible. 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esac fi sys_lib_dlsearch_path_spec='/usr/lib' ;; tpf*) # TPF is a cross-target only. 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" >&6; } if ${ac_cv_path_PKG_CONFIG+:} false; then : $as_echo_n "(cached) " >&6 else case $PKG_CONFIG in [\\/]* | ?:[\\/]*) ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi PKG_CONFIG=$ac_cv_path_PKG_CONFIG if test -n "$PKG_CONFIG"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5 $as_echo "$PKG_CONFIG" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_path_PKG_CONFIG"; then ac_pt_PKG_CONFIG=$PKG_CONFIG # Extract the first word of "pkg-config", so it can be a program name with args. set dummy pkg-config; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_path_ac_pt_PKG_CONFIG+:} false; then : $as_echo_n "(cached) " >&6 else case $ac_pt_PKG_CONFIG in [\\/]* | ?:[\\/]*) ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG if test -n "$ac_pt_PKG_CONFIG"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5 $as_echo "$ac_pt_PKG_CONFIG" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_pt_PKG_CONFIG" = x; then PKG_CONFIG="" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac PKG_CONFIG=$ac_pt_PKG_CONFIG fi else PKG_CONFIG="$ac_cv_path_PKG_CONFIG" fi fi if test -n "$PKG_CONFIG"; then _pkg_min_version=0.9.0 { $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5 $as_echo_n "checking pkg-config is at least version $_pkg_min_version... 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" >&6; } if test -n "$GNUTLS_CFLAGS"; then pkg_cv_GNUTLS_CFLAGS="$GNUTLS_CFLAGS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gnutls >= 3.3.0\""; } >&5 ($PKG_CONFIG --exists --print-errors "gnutls >= 3.3.0") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_GNUTLS_CFLAGS=`$PKG_CONFIG --cflags "gnutls >= 3.3.0" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test -n "$GNUTLS_LIBS"; then pkg_cv_GNUTLS_LIBS="$GNUTLS_LIBS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gnutls >= 3.3.0\""; } >&5 ($PKG_CONFIG --exists --print-errors "gnutls >= 3.3.0") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_GNUTLS_LIBS=`$PKG_CONFIG --libs "gnutls >= 3.3.0" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test $pkg_failed = yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi if test $_pkg_short_errors_supported = yes; then GNUTLS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "gnutls >= 3.3.0" 2>&1` else GNUTLS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "gnutls >= 3.3.0" 2>&1` fi # Put the nasty error message in config.log where it belongs echo "$GNUTLS_PKG_ERRORS" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&5 $as_echo "$as_me: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&2;} elif test $pkg_failed = untried; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&5 $as_echo "$as_me: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&2;} else GNUTLS_CFLAGS=$pkg_cv_GNUTLS_CFLAGS GNUTLS_LIBS=$pkg_cv_GNUTLS_LIBS { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } $as_echo "#define HAVE_GNUTLS 1" >>confdefs.h fi fi if test "x$GNUTLS_LIBS" != "x"; then HAVE_GNUTLS_TRUE= HAVE_GNUTLS_FALSE='#' else HAVE_GNUTLS_TRUE='#' HAVE_GNUTLS_FALSE= fi if test "$GNUTLS_LIBS" != ""; then : { $as_echo "$as_me:${as_lineno-$LINENO}: checking for default TLS session priority string" >&5 $as_echo_n "checking for default TLS session priority string... " >&6; } # Check whether --with-tls-priority was given. if test "${with_tls_priority+set}" = set; then : withval=$with_tls_priority; tls_priority=$withval else tls_priority=NORMAL fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tls_priority" >&5 $as_echo "$tls_priority" >&6; } cat >>confdefs.h <<_ACEOF #define TLS_PRIORITY "$tls_priority" _ACEOF # Check for APIs which may not be present. old_LIBS="$LIBS" LIBS="$GNUTLS_LIBS $LIBS" for ac_func in \ gnutls_session_set_verify_cert do : as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" if eval test \"x\$"$as_ac_var"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done LIBS="$old_LIBS" fi # Extract the first word of "certtool", so it can be a program name with args. set dummy certtool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_CERTTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$CERTTOOL"; then ac_cv_prog_CERTTOOL="$CERTTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_CERTTOOL="certtool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi CERTTOOL=$ac_cv_prog_CERTTOOL if test -n "$CERTTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CERTTOOL" >&5 $as_echo "$CERTTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$CERTTOOL" != "x"; then HAVE_CERTTOOL_TRUE= HAVE_CERTTOOL_FALSE='#' else HAVE_CERTTOOL_TRUE='#' HAVE_CERTTOOL_FALSE= fi # Extract the first word of "psktool", so it can be a program name with args. set dummy psktool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_PSKTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$PSKTOOL"; then ac_cv_prog_PSKTOOL="$PSKTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_PSKTOOL="psktool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi PSKTOOL=$ac_cv_prog_PSKTOOL if test -n "$PSKTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PSKTOOL" >&5 $as_echo "$PSKTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$PSKTOOL" != "x"; then HAVE_PSKTOOL_TRUE= HAVE_PSKTOOL_FALSE='#' else HAVE_PSKTOOL_TRUE='#' HAVE_PSKTOOL_FALSE= fi # Check whether --with-libxml2 was given. if test "${with_libxml2+set}" = set; then : withval=$with_libxml2; else with_libxml2=check fi if test "$with_libxml2" != "no"; then : pkg_failed=no { $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBXML2" >&5 $as_echo_n "checking for LIBXML2... " >&6; } if test -n "$LIBXML2_CFLAGS"; then pkg_cv_LIBXML2_CFLAGS="$LIBXML2_CFLAGS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libxml-2.0\""; } >&5 ($PKG_CONFIG --exists --print-errors "libxml-2.0") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_LIBXML2_CFLAGS=`$PKG_CONFIG --cflags "libxml-2.0" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test -n "$LIBXML2_LIBS"; then pkg_cv_LIBXML2_LIBS="$LIBXML2_LIBS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libxml-2.0\""; } >&5 ($PKG_CONFIG --exists --print-errors "libxml-2.0") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_LIBXML2_LIBS=`$PKG_CONFIG --libs "libxml-2.0" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test $pkg_failed = yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi if test $_pkg_short_errors_supported = yes; then LIBXML2_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libxml-2.0" 2>&1` else LIBXML2_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libxml-2.0" 2>&1` fi # Put the nasty error message in config.log where it belongs echo "$LIBXML2_PKG_ERRORS" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libxml2 not found, NBD URI support will be disabled." >&5 $as_echo "$as_me: WARNING: libxml2 not found, NBD URI support will be disabled." >&2;} elif test $pkg_failed = untried; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libxml2 not found, NBD URI support will be disabled." >&5 $as_echo "$as_me: WARNING: libxml2 not found, NBD URI support will be disabled." >&2;} else LIBXML2_CFLAGS=$pkg_cv_LIBXML2_CFLAGS LIBXML2_LIBS=$pkg_cv_LIBXML2_LIBS { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } $as_echo "#define HAVE_LIBXML2 1" >>confdefs.h fi fi nbdkit_plugins="memory null pattern sh" nbdkit_min_minor="12" ;# 1.12 # Extract the first word of "nbdkit", so it can be a program name with args. set dummy nbdkit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_NBDKIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$NBDKIT"; then ac_cv_prog_NBDKIT="$NBDKIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_NBDKIT="nbdkit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi NBDKIT=$ac_cv_prog_NBDKIT if test -n "$NBDKIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NBDKIT" >&5 $as_echo "$NBDKIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$NBDKIT" != "x"; then : have_nbdkit_features=yes { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nbdkit >= 1.$nbdkit_min_minor" >&5 $as_echo_n "checking for nbdkit >= 1.$nbdkit_min_minor... " >&6; } nbdkit_minor="$( $NBDKIT --version | $SED 's/^nbdkit 1\.\([0-9]*\)\..*/\1/' )" if test $nbdkit_minor -ge $nbdkit_min_minor; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes (1.$nbdkit_minor)" >&5 $as_echo "yes (1.$nbdkit_minor)" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no (1.$nbdkit_minor)" >&5 $as_echo "no (1.$nbdkit_minor)" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: nbdkit is too old, some tests will be disabled" >&5 $as_echo "$as_me: WARNING: nbdkit is too old, some tests will be disabled" >&2;} have_nbdkit_features=no fi for p in $nbdkit_plugins; do { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nbdkit $p plugin" >&5 $as_echo_n "checking for nbdkit $p plugin... " >&6; } if $NBDKIT $p --version >&5 2>&1; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: nbdkit $p plugin is missing, some tests will be disabled" >&5 $as_echo "$as_me: WARNING: nbdkit $p plugin is missing, some tests will be disabled" >&2;} have_nbdkit_features=no fi done fi if test "x$NBDKIT" != "x" && test "x$have_nbdkit_features" = "xyes"; then HAVE_NBDKIT_TRUE= HAVE_NBDKIT_FALSE='#' else HAVE_NBDKIT_TRUE='#' HAVE_NBDKIT_FALSE= fi # Extract the first word of "nbd-server", so it can be a program name with args. set dummy nbd-server; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_NBD_SERVER+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$NBD_SERVER"; then ac_cv_prog_NBD_SERVER="$NBD_SERVER" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_NBD_SERVER="nbd-server" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi NBD_SERVER=$ac_cv_prog_NBD_SERVER if test -n "$NBD_SERVER"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NBD_SERVER" >&5 $as_echo "$NBD_SERVER" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$NBD_SERVER" != "x"; then HAVE_NBD_SERVER_TRUE= HAVE_NBD_SERVER_FALSE='#' else HAVE_NBD_SERVER_TRUE='#' HAVE_NBD_SERVER_FALSE= fi # Extract the first word of "qemu-nbd", so it can be a program name with args. set dummy qemu-nbd; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_QEMU_NBD+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$QEMU_NBD"; then ac_cv_prog_QEMU_NBD="$QEMU_NBD" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_QEMU_NBD="qemu-nbd" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi QEMU_NBD=$ac_cv_prog_QEMU_NBD if test -n "$QEMU_NBD"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $QEMU_NBD" >&5 $as_echo "$QEMU_NBD" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$QEMU_NBD" != "x"; then HAVE_QEMU_NBD_TRUE= HAVE_QEMU_NBD_FALSE='#' else HAVE_QEMU_NBD_TRUE='#' HAVE_QEMU_NBD_FALSE= fi pkg_failed=no { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GLIB" >&5 $as_echo_n "checking for GLIB... " >&6; } if test -n "$GLIB_CFLAGS"; then pkg_cv_GLIB_CFLAGS="$GLIB_CFLAGS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"glib-2.0\""; } >&5 ($PKG_CONFIG --exists --print-errors "glib-2.0") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_GLIB_CFLAGS=`$PKG_CONFIG --cflags "glib-2.0" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test -n "$GLIB_LIBS"; then pkg_cv_GLIB_LIBS="$GLIB_LIBS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"glib-2.0\""; } >&5 ($PKG_CONFIG --exists --print-errors "glib-2.0") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_GLIB_LIBS=`$PKG_CONFIG --libs "glib-2.0" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test $pkg_failed = yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi if test $_pkg_short_errors_supported = yes; then GLIB_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "glib-2.0" 2>&1` else GLIB_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "glib-2.0" 2>&1` fi # Put the nasty error message in config.log where it belongs echo "$GLIB_PKG_ERRORS" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: glib2 not found, some examples will not be compiled" >&5 $as_echo "$as_me: WARNING: glib2 not found, some examples will not be compiled" >&2;} elif test $pkg_failed = untried; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: glib2 not found, some examples will not be compiled" >&5 $as_echo "$as_me: WARNING: glib2 not found, some examples will not be compiled" >&2;} else GLIB_CFLAGS=$pkg_cv_GLIB_CFLAGS GLIB_LIBS=$pkg_cv_GLIB_LIBS { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } fi if test "x$GLIB_LIBS" != "x"; then HAVE_GLIB_TRUE= HAVE_GLIB_FALSE='#' else HAVE_GLIB_TRUE='#' HAVE_GLIB_FALSE= fi # Check whether --enable-fuse was given. if test "${enable_fuse+set}" = set; then : enableval=$enable_fuse; else enable_fuse=yes fi if test "x$enable_fuse" != "xno"; then : pkg_failed=no { $as_echo "$as_me:${as_lineno-$LINENO}: checking for FUSE" >&5 $as_echo_n "checking for FUSE... 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" >&6; } if ${ac_cv_prog_PERL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$PERL"; then ac_cv_prog_PERL="$PERL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_PERL="perl" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS test -z "$ac_cv_prog_PERL" && ac_cv_prog_PERL="no" fi fi PERL=$ac_cv_prog_PERL if test -n "$PERL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL" >&5 $as_echo "$PERL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$PERL" != "xno"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we have perl Pod::Man and Pod::Simple" >&5 $as_echo_n "checking if we have perl Pod::Man and Pod::Simple... " >&6; } if $PERL -MPod::Man -MPod::Simple -e 1 >&5 2>&1; then : enable_pod=yes else enable_pod=no fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_pod" >&5 $as_echo "$enable_pod" >&6; } fi if test "x$PERL" != "xno" && test "x$enable_pod" = "xyes"; then HAVE_POD_TRUE= HAVE_POD_FALSE='#' else HAVE_POD_TRUE='#' HAVE_POD_FALSE= fi PODWRAPPER="$PERL $(pwd)/podwrapper.pl" # Check whether --enable-libfuzzer was given. if test "${enable_libfuzzer+set}" = set; then : enableval=$enable_libfuzzer; enable_libfuzzer=yes else enable_libfuzzer=no fi if test "x$enable_libfuzzer" = "xyes"; then ENABLE_LIBFUZZER_TRUE= ENABLE_LIBFUZZER_FALSE='#' else ENABLE_LIBFUZZER_TRUE='#' ENABLE_LIBFUZZER_FALSE= fi # checking for ocamlc if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamlc", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamlc; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLC"; then ac_cv_prog_OCAMLC="$OCAMLC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLC="${ac_tool_prefix}ocamlc" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLC=$ac_cv_prog_OCAMLC if test -n "$OCAMLC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLC" >&5 $as_echo "$OCAMLC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLC"; then ac_ct_OCAMLC=$OCAMLC # Extract the first word of "ocamlc", so it can be a program name with args. set dummy ocamlc; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLC"; then ac_cv_prog_ac_ct_OCAMLC="$ac_ct_OCAMLC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLC="ocamlc" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLC=$ac_cv_prog_ac_ct_OCAMLC if test -n "$ac_ct_OCAMLC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLC" >&5 $as_echo "$ac_ct_OCAMLC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLC" = x; then OCAMLC="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLC=$ac_ct_OCAMLC fi else OCAMLC="$ac_cv_prog_OCAMLC" fi if test "$OCAMLC" != "no"; then OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'` { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml version is $OCAMLVERSION" >&5 $as_echo "OCaml version is $OCAMLVERSION" >&6; } # If OCAMLLIB is set, use it if test "$OCAMLLIB" = ""; then OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4` else { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCAMLLIB previously set; preserving it." >&5 $as_echo "OCAMLLIB previously set; preserving it." >&6; } fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml library path is $OCAMLLIB" >&5 $as_echo "OCaml library path is $OCAMLLIB" >&6; } # checking for ocamlopt if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamlopt", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamlopt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLOPT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLOPT"; then ac_cv_prog_OCAMLOPT="$OCAMLOPT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLOPT="${ac_tool_prefix}ocamlopt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLOPT=$ac_cv_prog_OCAMLOPT if test -n "$OCAMLOPT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPT" >&5 $as_echo "$OCAMLOPT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLOPT"; then ac_ct_OCAMLOPT=$OCAMLOPT # Extract the first word of "ocamlopt", so it can be a program name with args. set dummy ocamlopt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLOPT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLOPT"; then ac_cv_prog_ac_ct_OCAMLOPT="$ac_ct_OCAMLOPT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLOPT="ocamlopt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLOPT=$ac_cv_prog_ac_ct_OCAMLOPT if test -n "$ac_ct_OCAMLOPT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLOPT" >&5 $as_echo "$ac_ct_OCAMLOPT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLOPT" = x; then OCAMLOPT="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLOPT=$ac_ct_OCAMLOPT fi else OCAMLOPT="$ac_cv_prog_OCAMLOPT" fi OCAMLBEST=byte if test "$OCAMLOPT" = "no"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Cannot find ocamlopt; bytecode compilation only." >&5 $as_echo "$as_me: WARNING: Cannot find ocamlopt; bytecode compilation only." >&2;} else TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` if test "$TMPVERSION" != "$OCAMLVERSION" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlopt discarded." >&5 $as_echo "versions differs from ocamlc; ocamlopt discarded." >&6; } OCAMLOPT=no else OCAMLBEST=opt fi fi # checking for ocamlc.opt if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamlc.opt", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamlc.opt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLCDOTOPT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLCDOTOPT"; then ac_cv_prog_OCAMLCDOTOPT="$OCAMLCDOTOPT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLCDOTOPT="${ac_tool_prefix}ocamlc.opt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLCDOTOPT=$ac_cv_prog_OCAMLCDOTOPT if test -n "$OCAMLCDOTOPT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLCDOTOPT" >&5 $as_echo "$OCAMLCDOTOPT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLCDOTOPT"; then ac_ct_OCAMLCDOTOPT=$OCAMLCDOTOPT # Extract the first word of "ocamlc.opt", so it can be a program name with args. set dummy ocamlc.opt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLCDOTOPT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLCDOTOPT"; then ac_cv_prog_ac_ct_OCAMLCDOTOPT="$ac_ct_OCAMLCDOTOPT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLCDOTOPT="ocamlc.opt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLCDOTOPT=$ac_cv_prog_ac_ct_OCAMLCDOTOPT if test -n "$ac_ct_OCAMLCDOTOPT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLCDOTOPT" >&5 $as_echo "$ac_ct_OCAMLCDOTOPT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLCDOTOPT" = x; then OCAMLCDOTOPT="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLCDOTOPT=$ac_ct_OCAMLCDOTOPT fi else OCAMLCDOTOPT="$ac_cv_prog_OCAMLCDOTOPT" fi if test "$OCAMLCDOTOPT" != "no"; then TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` if test "$TMPVERSION" != "$OCAMLVERSION" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlc.opt discarded." >&5 $as_echo "versions differs from ocamlc; ocamlc.opt discarded." >&6; } else OCAMLC=$OCAMLCDOTOPT fi fi # checking for ocamlopt.opt if test "$OCAMLOPT" != "no" ; then if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamlopt.opt", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamlopt.opt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLOPTDOTOPT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLOPTDOTOPT"; then ac_cv_prog_OCAMLOPTDOTOPT="$OCAMLOPTDOTOPT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLOPTDOTOPT="${ac_tool_prefix}ocamlopt.opt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLOPTDOTOPT=$ac_cv_prog_OCAMLOPTDOTOPT if test -n "$OCAMLOPTDOTOPT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPTDOTOPT" >&5 $as_echo "$OCAMLOPTDOTOPT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLOPTDOTOPT"; then ac_ct_OCAMLOPTDOTOPT=$OCAMLOPTDOTOPT # Extract the first word of "ocamlopt.opt", so it can be a program name with args. set dummy ocamlopt.opt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLOPTDOTOPT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLOPTDOTOPT"; then ac_cv_prog_ac_ct_OCAMLOPTDOTOPT="$ac_ct_OCAMLOPTDOTOPT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLOPTDOTOPT="ocamlopt.opt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLOPTDOTOPT=$ac_cv_prog_ac_ct_OCAMLOPTDOTOPT if test -n "$ac_ct_OCAMLOPTDOTOPT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLOPTDOTOPT" >&5 $as_echo "$ac_ct_OCAMLOPTDOTOPT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLOPTDOTOPT" = x; then OCAMLOPTDOTOPT="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLOPTDOTOPT=$ac_ct_OCAMLOPTDOTOPT fi else OCAMLOPTDOTOPT="$ac_cv_prog_OCAMLOPTDOTOPT" fi if test "$OCAMLOPTDOTOPT" != "no"; then TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' ` if test "$TMPVERSION" != "$OCAMLVERSION" ; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: version differs from ocamlc; ocamlopt.opt discarded." >&5 $as_echo "version differs from ocamlc; ocamlopt.opt discarded." >&6; } else OCAMLOPT=$OCAMLOPTDOTOPT fi fi fi fi # checking for ocaml toplevel if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocaml", so it can be a program name with args. set dummy ${ac_tool_prefix}ocaml; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAML+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAML"; then ac_cv_prog_OCAML="$OCAML" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAML="${ac_tool_prefix}ocaml" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAML=$ac_cv_prog_OCAML if test -n "$OCAML"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAML" >&5 $as_echo "$OCAML" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAML"; then ac_ct_OCAML=$OCAML # Extract the first word of "ocaml", so it can be a program name with args. set dummy ocaml; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAML+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAML"; then ac_cv_prog_ac_ct_OCAML="$ac_ct_OCAML" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAML="ocaml" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAML=$ac_cv_prog_ac_ct_OCAML if test -n "$ac_ct_OCAML"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAML" >&5 $as_echo "$ac_ct_OCAML" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAML" = x; then OCAML="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAML=$ac_ct_OCAML fi else OCAML="$ac_cv_prog_OCAML" fi # checking for ocamldep if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamldep", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamldep; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLDEP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLDEP"; then ac_cv_prog_OCAMLDEP="$OCAMLDEP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLDEP="${ac_tool_prefix}ocamldep" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLDEP=$ac_cv_prog_OCAMLDEP if test -n "$OCAMLDEP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDEP" >&5 $as_echo "$OCAMLDEP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLDEP"; then ac_ct_OCAMLDEP=$OCAMLDEP # Extract the first word of "ocamldep", so it can be a program name with args. set dummy ocamldep; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLDEP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLDEP"; then ac_cv_prog_ac_ct_OCAMLDEP="$ac_ct_OCAMLDEP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLDEP="ocamldep" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLDEP=$ac_cv_prog_ac_ct_OCAMLDEP if test -n "$ac_ct_OCAMLDEP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDEP" >&5 $as_echo "$ac_ct_OCAMLDEP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLDEP" = x; then OCAMLDEP="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLDEP=$ac_ct_OCAMLDEP fi else OCAMLDEP="$ac_cv_prog_OCAMLDEP" fi # checking for ocamlmktop if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamlmktop", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamlmktop; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLMKTOP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLMKTOP"; then ac_cv_prog_OCAMLMKTOP="$OCAMLMKTOP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLMKTOP="${ac_tool_prefix}ocamlmktop" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLMKTOP=$ac_cv_prog_OCAMLMKTOP if test -n "$OCAMLMKTOP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKTOP" >&5 $as_echo "$OCAMLMKTOP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLMKTOP"; then ac_ct_OCAMLMKTOP=$OCAMLMKTOP # Extract the first word of "ocamlmktop", so it can be a program name with args. set dummy ocamlmktop; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLMKTOP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLMKTOP"; then ac_cv_prog_ac_ct_OCAMLMKTOP="$ac_ct_OCAMLMKTOP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLMKTOP="ocamlmktop" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLMKTOP=$ac_cv_prog_ac_ct_OCAMLMKTOP if test -n "$ac_ct_OCAMLMKTOP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLMKTOP" >&5 $as_echo "$ac_ct_OCAMLMKTOP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLMKTOP" = x; then OCAMLMKTOP="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLMKTOP=$ac_ct_OCAMLMKTOP fi else OCAMLMKTOP="$ac_cv_prog_OCAMLMKTOP" fi # checking for ocamlmklib if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamlmklib", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamlmklib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLMKLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLMKLIB"; then ac_cv_prog_OCAMLMKLIB="$OCAMLMKLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLMKLIB="${ac_tool_prefix}ocamlmklib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLMKLIB=$ac_cv_prog_OCAMLMKLIB if test -n "$OCAMLMKLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKLIB" >&5 $as_echo "$OCAMLMKLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLMKLIB"; then ac_ct_OCAMLMKLIB=$OCAMLMKLIB # Extract the first word of "ocamlmklib", so it can be a program name with args. set dummy ocamlmklib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLMKLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLMKLIB"; then ac_cv_prog_ac_ct_OCAMLMKLIB="$ac_ct_OCAMLMKLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLMKLIB="ocamlmklib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLMKLIB=$ac_cv_prog_ac_ct_OCAMLMKLIB if test -n "$ac_ct_OCAMLMKLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLMKLIB" >&5 $as_echo "$ac_ct_OCAMLMKLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLMKLIB" = x; then OCAMLMKLIB="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLMKLIB=$ac_ct_OCAMLMKLIB fi else OCAMLMKLIB="$ac_cv_prog_OCAMLMKLIB" fi # checking for ocamldoc if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamldoc", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamldoc; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLDOC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLDOC"; then ac_cv_prog_OCAMLDOC="$OCAMLDOC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLDOC="${ac_tool_prefix}ocamldoc" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLDOC=$ac_cv_prog_OCAMLDOC if test -n "$OCAMLDOC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDOC" >&5 $as_echo "$OCAMLDOC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLDOC"; then ac_ct_OCAMLDOC=$OCAMLDOC # Extract the first word of "ocamldoc", so it can be a program name with args. set dummy ocamldoc; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLDOC+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLDOC"; then ac_cv_prog_ac_ct_OCAMLDOC="$ac_ct_OCAMLDOC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLDOC="ocamldoc" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLDOC=$ac_cv_prog_ac_ct_OCAMLDOC if test -n "$ac_ct_OCAMLDOC"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDOC" >&5 $as_echo "$ac_ct_OCAMLDOC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLDOC" = x; then OCAMLDOC="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLDOC=$ac_ct_OCAMLDOC fi else OCAMLDOC="$ac_cv_prog_OCAMLDOC" fi # checking for ocamlbuild if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamlbuild", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamlbuild; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLBUILD+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLBUILD"; then ac_cv_prog_OCAMLBUILD="$OCAMLBUILD" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLBUILD="${ac_tool_prefix}ocamlbuild" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLBUILD=$ac_cv_prog_OCAMLBUILD if test -n "$OCAMLBUILD"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLBUILD" >&5 $as_echo "$OCAMLBUILD" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLBUILD"; then ac_ct_OCAMLBUILD=$OCAMLBUILD # Extract the first word of "ocamlbuild", so it can be a program name with args. set dummy ocamlbuild; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLBUILD+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLBUILD"; then ac_cv_prog_ac_ct_OCAMLBUILD="$ac_ct_OCAMLBUILD" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLBUILD="ocamlbuild" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLBUILD=$ac_cv_prog_ac_ct_OCAMLBUILD if test -n "$ac_ct_OCAMLBUILD"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLBUILD" >&5 $as_echo "$ac_ct_OCAMLBUILD" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLBUILD" = x; then OCAMLBUILD="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLBUILD=$ac_ct_OCAMLBUILD fi else OCAMLBUILD="$ac_cv_prog_OCAMLBUILD" fi # checking for ocamlfind if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ocamlfind", so it can be a program name with args. set dummy ${ac_tool_prefix}ocamlfind; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OCAMLFIND+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OCAMLFIND"; then ac_cv_prog_OCAMLFIND="$OCAMLFIND" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OCAMLFIND="${ac_tool_prefix}ocamlfind" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OCAMLFIND=$ac_cv_prog_OCAMLFIND if test -n "$OCAMLFIND"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLFIND" >&5 $as_echo "$OCAMLFIND" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OCAMLFIND"; then ac_ct_OCAMLFIND=$OCAMLFIND # Extract the first word of "ocamlfind", so it can be a program name with args. set dummy ocamlfind; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OCAMLFIND+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OCAMLFIND"; then ac_cv_prog_ac_ct_OCAMLFIND="$ac_ct_OCAMLFIND" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OCAMLFIND="ocamlfind" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OCAMLFIND=$ac_cv_prog_ac_ct_OCAMLFIND if test -n "$ac_ct_OCAMLFIND"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLFIND" >&5 $as_echo "$ac_ct_OCAMLFIND" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OCAMLFIND" = x; then OCAMLFIND="no" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OCAMLFIND=$ac_ct_OCAMLFIND fi else OCAMLFIND="$ac_cv_prog_OCAMLFIND" fi if test "x$OCAML" != "xno"; then HAVE_OCAML_TOPLEVEL_TRUE= HAVE_OCAML_TOPLEVEL_FALSE='#' else HAVE_OCAML_TOPLEVEL_TRUE='#' HAVE_OCAML_TOPLEVEL_FALSE= fi OCAML_WARN_ERROR="-warn-error CDEFLMPSUVYZX+52-3" OCAML_FLAGS="-g -annot -safe-string" # Check whether --enable-ocaml was given. if test "${enable_ocaml+set}" = set; then : enableval=$enable_ocaml; else enable_ocaml=yes fi if test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \ test "x$enable_ocaml" = "xyes"; then HAVE_OCAML_TRUE= HAVE_OCAML_FALSE='#' else HAVE_OCAML_TRUE='#' HAVE_OCAML_FALSE= fi if test "x$OCAMLOPT" != "xno" && test "x$OCAMLFIND" != "xno" && \ test "x$enable_ocaml" = "xyes"; then HAVE_OCAMLOPT_TRUE= HAVE_OCAMLOPT_FALSE='#' else HAVE_OCAMLOPT_TRUE='#' HAVE_OCAMLOPT_FALSE= fi if test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \ test "x$enable_ocaml" = "xyes"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: checking for caml_alloc_custom_mem" >&5 $as_echo_n "checking for caml_alloc_custom_mem... " >&6; } cat >conftest.c <<'EOF' #include int main () { char *p = (void *) caml_alloc_custom_mem; return 0; } EOF if $OCAMLC conftest.c >&5 2>&1; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } $as_echo "#define HAVE_CAML_ALLOC_CUSTOM_MEM 1" >>confdefs.h else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi rm -f conftest.c conftest.o fi if test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \ test "x$enable_ocaml" = "xyes"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: checking for caml_alloc_initialized_string" >&5 $as_echo_n "checking for caml_alloc_initialized_string... " >&6; } cat >conftest.c <<'EOF' #include int main () { char *p = (void *) caml_alloc_initialized_string; return 0; } EOF if $OCAMLC conftest.c >&5 2>&1; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } $as_echo "#define HAVE_CAML_ALLOC_INITIALIZED_STRING 1" >>confdefs.h else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi rm -f conftest.c conftest.o fi PYTHON_PREFIX= PYTHON_VERSION= PYTHON_INSTALLDIR= # Check whether --enable-python was given. if test "${enable_python+set}" = set; then : enableval=$enable_python; else enable_python=yes fi if test "x$enable_python" != "xno"; then : # Extract the first word of "python3", so it can be a program name with args. set dummy python3; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_PYTHON+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$PYTHON"; then ac_cv_prog_PYTHON="$PYTHON" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_PYTHON="python3" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS test -z "$ac_cv_prog_PYTHON" && ac_cv_prog_PYTHON="no" fi fi PYTHON=$ac_cv_prog_PYTHON if test -n "$PYTHON"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON" >&5 $as_echo "$PYTHON" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$PYTHON" != "xno"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking Python version" >&5 $as_echo_n "checking Python version... " >&6; } PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info[0])"` PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info[1])"` PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR" { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON_VERSION" >&5 $as_echo "$PYTHON_VERSION" >&6; } # Debian: python-3.2.pc pkg_failed=no { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 $as_echo_n "checking for PYTHON... " >&6; } if test -n "$PYTHON_CFLAGS"; then pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5 ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python-"$PYTHON_VERSION"" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test -n "$PYTHON_LIBS"; then pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5 ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python-"$PYTHON_VERSION"" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test $pkg_failed = yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi if test $_pkg_short_errors_supported = yes; then PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1` else PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1` fi # Put the nasty error message in config.log where it belongs echo "$PYTHON_PKG_ERRORS" >&5 pkg_failed=no { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 $as_echo_n "checking for PYTHON... " >&6; } if test -n "$PYTHON_CFLAGS"; then pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 ($PKG_CONFIG --exists --print-errors "python") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test -n "$PYTHON_LIBS"; then pkg_cv_PYTHON_LIBS="$PYTHON_LIBS" elif test -n "$PKG_CONFIG"; then if test -n "$PKG_CONFIG" && \ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5 ($PKG_CONFIG --exists --print-errors "python") 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes else pkg_failed=yes fi else pkg_failed=untried fi if test $pkg_failed = yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi if test $_pkg_short_errors_supported = yes; then PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1` else PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1` fi # Put the nasty error message in config.log where it belongs echo "$PYTHON_PKG_ERRORS" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 $as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} elif test $pkg_failed = untried; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5 $as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;} else PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS PYTHON_LIBS=$pkg_cv_PYTHON_LIBS { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } have_python_module=1 $as_echo "#define HAVE_PYTHON 1" >>confdefs.h fi elif test $pkg_failed = untried; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } pkg_failed=no { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5 $as_echo_n "checking for PYTHON... 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" \ test "x$HAVE_GNUTLS_TRUE" = "x" feature "NBD URI support ........................ " \ test "x$LIBXML2_LIBS" != "x" feature "FUSE support ........................... " \ test "x$HAVE_FUSE_TRUE" = "x" feature "Manual pages ........................... " \ test "x$HAVE_POD_TRUE" = "x" echo echo "Language bindings:" echo feature "OCaml .................................. " \ test "x$HAVE_OCAML_TRUE" = "x" feature "Python ................................. " \ test "x$HAVE_PYTHON_TRUE" = "x" echo echo "If any optional component is configured ‘no’ when you expected ‘yes’" echo "then you should check the preceding messages and README." echo echo "Please report bugs back to the mailing list:" echo "http://www.redhat.com/mailman/listinfo/libguestfs" echo echo "Next you should type 'make' to build the package," echo "then 'make check' to run the tests." libnbd-1.2.2/configure.ac0000664000175000017500000003723113616543360012174 00000000000000# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA AC_INIT([libnbd],[1.2.2]) AC_CONFIG_MACRO_DIR([m4]) m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],[], [m4_define([AC_USE_SYSTEM_EXTENSIONS],[])]) AC_USE_SYSTEM_EXTENSIONS AC_SYS_LARGEFILE dnl NB: Do not [quote] this parameter. AM_INIT_AUTOMAKE(foreign) AC_PROG_LIBTOOL LT_INIT AC_CANONICAL_HOST AC_PROG_SED dnl Check for basic C environment. AC_PROG_CC_STDC AC_PROG_INSTALL AC_PROG_CPP AC_C_PROTOTYPES test "x$U" != "x" && AC_MSG_ERROR([Compiler not ANSI compliant]) AM_PROG_CC_C_O AX_PTHREAD dnl Check for C++ (optional, we just use this to test the header dnl can be included from C++ code). AC_PROG_CXX dnl The C++ compiler test is pretty useless because even if it fails dnl it sets CXX=g++. So test the compiler actually works. AC_MSG_CHECKING([if the C++ compiler really really works]) AS_IF([$CXX --version >&AS_MESSAGE_LOG_FD 2>&1],[have_cxx=yes],[have_cxx=no]) AC_MSG_RESULT([$have_cxx]) AM_CONDITIONAL([HAVE_CXX], [test "$have_cxx" = "yes"]) AC_ARG_ENABLE([gcc-warnings], [AS_HELP_STRING([--enable-gcc-warnings], [turn on lots of GCC warnings (for developers)])], [case $enableval in yes|no) ;; *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;; esac gcc_warnings=$enableval], [gcc_warnings=no] ) if test "x$gcc_warnings" = "xyes"; then WARNINGS_CFLAGS="-Wall -Wvla -Werror" AC_SUBST([WARNINGS_CFLAGS]) fi dnl Check for other headers, all optional. AC_CHECK_HEADERS([\ byteswap.h \ endian.h \ stdatomic.h \ sys/endian.h]) AC_CHECK_HEADERS([linux/vm_sockets.h], [], [], [#include ]) dnl Check for sys_errlist (optional). 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AC_CHECK_PROG([CERTTOOL], [certtool], [certtool]) AM_CONDITIONAL([HAVE_CERTTOOL], [test "x$CERTTOOL" != "x"]) dnl psktool (part of GnuTLS) for testing Pre-Shared Keys (PSK). AC_CHECK_PROG([PSKTOOL], [psktool], [psktool]) AM_CONDITIONAL([HAVE_PSKTOOL], [test "x$PSKTOOL" != "x"]) dnl Check for libxml2 (optional, for NBD URI support) AC_ARG_WITH([libxml2], [AS_HELP_STRING([--without-libxml2], [disable use of libxml2 for URI support @<:@default=check@:>@])], [], [with_libxml2=check]) AS_IF([test "$with_libxml2" != "no"],[ PKG_CHECK_MODULES([LIBXML2], [libxml-2.0], [ AC_SUBST([LIBXML2_CFLAGS]) AC_SUBST([LIBXML2_LIBS]) AC_DEFINE([HAVE_LIBXML2],[1],[libxml2 found at compile time.]) ], [ AC_MSG_WARN([libxml2 not found, NBD URI support will be disabled.]) ]) ]) dnl nbdkit, basic plugins and nbdkit-sh-plugin are only needed to run dnl the test suite. nbdkit_plugins="memory null pattern sh" nbdkit_min_minor="12" ;# 1.12 AC_CHECK_PROG([NBDKIT], [nbdkit], [nbdkit]) AS_IF([test "x$NBDKIT" != "x"], [ have_nbdkit_features=yes AC_MSG_CHECKING([for nbdkit >= 1.$nbdkit_min_minor]) nbdkit_minor="$( $NBDKIT --version | $SED 's/^nbdkit 1\.\(@<:@0-9@:>@*\)\..*/\1/' )" AS_IF([test $nbdkit_minor -ge $nbdkit_min_minor],[ AC_MSG_RESULT([yes (1.$nbdkit_minor)]) ],[ AC_MSG_RESULT([no (1.$nbdkit_minor)]) AC_MSG_WARN([nbdkit is too old, some tests will be disabled]) have_nbdkit_features=no ]) for p in $nbdkit_plugins; do AC_MSG_CHECKING([for nbdkit $p plugin]) AS_IF([$NBDKIT $p --version >&AS_MESSAGE_LOG_FD 2>&1], [ AC_MSG_RESULT([yes]) ],[ AC_MSG_RESULT([no]) AC_MSG_WARN([nbdkit $p plugin is missing, some tests will be disabled]) have_nbdkit_features=no ]) done ]) AM_CONDITIONAL([HAVE_NBDKIT], [test "x$NBDKIT" != "x" && test "x$have_nbdkit_features" = "xyes"]) dnl nbd-server and qemu-nbd for interop testing. AC_CHECK_PROG([NBD_SERVER], [nbd-server], [nbd-server]) AM_CONDITIONAL([HAVE_NBD_SERVER], [test "x$NBD_SERVER" != "x"]) AC_CHECK_PROG([QEMU_NBD], [qemu-nbd], [qemu-nbd]) AM_CONDITIONAL([HAVE_QEMU_NBD], [test "x$QEMU_NBD" != "x"]) dnl glib2 main loop for examples that interoperate with the glib main loop. PKG_CHECK_MODULES([GLIB], [glib-2.0], [ AC_SUBST([GLIB_CFLAGS]) AC_SUBST([GLIB_LIBS]) ],[ AC_MSG_WARN([glib2 not found, some examples will not be compiled]) ]) AM_CONDITIONAL([HAVE_GLIB], [test "x$GLIB_LIBS" != "x"]) dnl FUSE is optional to build the FUSE module. AC_ARG_ENABLE([fuse], AS_HELP_STRING([--disable-fuse], [disable FUSE (guestmount) support]), [], [enable_fuse=yes]) AS_IF([test "x$enable_fuse" != "xno"],[ PKG_CHECK_MODULES([FUSE],[fuse],[ AC_SUBST([FUSE_CFLAGS]) AC_SUBST([FUSE_LIBS]) AC_DEFINE([HAVE_FUSE],[1],[Define to 1 if you have FUSE.]) dnl OpenBSD doesn't have this header, but can still compile dnl FUSE modules anyhow. The symbol we need is fuse_chan_fd dnl which OpenBSD defines in regular fuse.h. old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $FUSE_CFLAGS" AC_CHECK_HEADERS([fuse_lowlevel.h]) CFLAGS="$old_CFLAGS" ],[ enable_fuse=no AC_MSG_WARN([FUSE library and headers are missing, so optional FUSE module won't be built]) ]) ]) AM_CONDITIONAL([HAVE_FUSE],[test "x$enable_fuse" != "xno"]) dnl Check we have enough to run podwrapper. AC_CHECK_PROG([PERL],[perl],[perl],[no]) AS_IF([test "x$PERL" != "xno"],[ AC_MSG_CHECKING([if we have perl Pod::Man and Pod::Simple]) AS_IF([$PERL -MPod::Man -MPod::Simple -e 1 >&AS_MESSAGE_LOG_FD 2>&1],[ enable_pod=yes ],[ enable_pod=no ]) AC_MSG_RESULT([$enable_pod]) ]) AM_CONDITIONAL([HAVE_POD], [test "x$PERL" != "xno" && test "x$enable_pod" = "xyes"]) dnl Define the path to the podwrapper program. PODWRAPPER="$PERL $(pwd)/podwrapper.pl" AC_SUBST([PODWRAPPER]) dnl Build the libFuzzer test. See fuzzing/README. AC_ARG_ENABLE([libfuzzer], [AS_HELP_STRING([--enable-libfuzzer], [build the libFuzzer test (developers only)])], [enable_libfuzzer=yes], [enable_libfuzzer=no]) AM_CONDITIONAL([ENABLE_LIBFUZZER],[test "x$enable_libfuzzer" = "xyes"]) dnl OCaml, required for running the generator when building from git, dnl optional the rest of the time unless you want to build the OCaml dnl bindings. AC_PROG_OCAML AC_PROG_FINDLIB AM_CONDITIONAL([HAVE_OCAML_TOPLEVEL],[test "x$OCAML" != "xno"]) dnl Flags we want to pass to every OCaml compiler call. OCAML_WARN_ERROR="-warn-error CDEFLMPSUVYZX+52-3" AC_SUBST([OCAML_WARN_ERROR]) OCAML_FLAGS="-g -annot -safe-string" AC_SUBST([OCAML_FLAGS]) dnl Note this only disables the OCaml bindings. AC_ARG_ENABLE([ocaml], AS_HELP_STRING([--disable-ocaml], [disable OCaml language bindings]), [], [enable_ocaml=yes]) AM_CONDITIONAL([HAVE_OCAML], [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \ test "x$enable_ocaml" = "xyes"]) AM_CONDITIONAL([HAVE_OCAMLOPT], [test "x$OCAMLOPT" != "xno" && test "x$OCAMLFIND" != "xno" && \ test "x$enable_ocaml" = "xyes"]) dnl Check if OCaml has caml_alloc_custom_mem (added late 2018). AS_IF([test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \ test "x$enable_ocaml" = "xyes"],[ AC_MSG_CHECKING([for caml_alloc_custom_mem]) cat >conftest.c <<'EOF' #include int main () { char *p = (void *) caml_alloc_custom_mem; return 0; } EOF AS_IF([$OCAMLC conftest.c >&AS_MESSAGE_LOG_FD 2>&1],[ AC_MSG_RESULT([yes]) AC_DEFINE([HAVE_CAML_ALLOC_CUSTOM_MEM],[1], [caml_alloc_custom_mem found at compile time.]) ],[ AC_MSG_RESULT([no]) ]) rm -f conftest.c conftest.o ]) dnl Check if OCaml has caml_alloc_initialized_string (added 2017). AS_IF([test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \ test "x$enable_ocaml" = "xyes"],[ AC_MSG_CHECKING([for caml_alloc_initialized_string]) cat >conftest.c <<'EOF' #include int main () { char *p = (void *) caml_alloc_initialized_string; return 0; } EOF AS_IF([$OCAMLC conftest.c >&AS_MESSAGE_LOG_FD 2>&1],[ AC_MSG_RESULT([yes]) AC_DEFINE([HAVE_CAML_ALLOC_INITIALIZED_STRING],[1], [caml_alloc_initialized_string found at compile time.]) ],[ AC_MSG_RESULT([no]) ]) rm -f conftest.c conftest.o ]) dnl Python, optional for the Python bindings and shell. 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AC_CONFIG_HEADERS([config.h]) AC_CONFIG_FILES([podwrapper.pl], [chmod +x,-w podwrapper.pl]) AC_CONFIG_FILES([python/run-python-tests], [chmod +x,-w python/run-python-tests]) AC_CONFIG_FILES([run], [chmod +x,-w run]) AC_CONFIG_FILES([sh/nbdsh], [chmod +x,-w sh/nbdsh]) AC_CONFIG_FILES([Makefile common/include/Makefile docs/Makefile examples/Makefile fuse/Makefile fuzzing/Makefile generator/Makefile include/Makefile interop/Makefile lib/Makefile lib/libnbd.pc ocaml/Makefile ocaml/META ocaml/examples/Makefile ocaml/tests/Makefile python/Makefile sh/Makefile tests/Makefile tests/functions.sh valgrind/Makefile]) AC_OUTPUT dnl Summary. echo echo echo "----------------------------------------------------------------------" echo "Thank you for downloading $PACKAGE_STRING" echo echo "This is how we have configured the optional components for you today:" echo feature () { printf %s " $1" shift if $@; then echo "yes"; else echo "no"; fi } echo "Optional library features:" echo feature "TLS support ............................ 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See the GNU dnl General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program; if not, write to the Free Software dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA dnl 02111-1307, USA. dnl dnl As a special exception to the GNU General Public License, if you dnl distribute this file as part of a program that contains a dnl configuration script generated by Autoconf, you may include it under dnl the same distribution terms that you use for the rest of that dnl program. dnl PKG_PREREQ(MIN-VERSION) dnl ----------------------- dnl Since: 0.29 dnl dnl Verify that the version of the pkg-config macros are at least dnl MIN-VERSION. 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this can be used by system headers. */ #undef __PROTOTYPES libnbd-1.2.2/podwrapper.pl.in0000775000175000017500000003427213534415604013036 00000000000000#!/usr/bin/env perl # podwrapper.pl # @configure_input@ # Copyright (C) 2010-2018 Red Hat Inc. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # # * Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # * Neither the name of Red Hat nor the names of its contributors may be # used to endorse or promote products derived from this software without # specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. use warnings; use strict; use Pod::Usage; use Getopt::Long; use Pod::Man; use Pod::Simple; use Pod::Simple::Text; use Pod::Simple::XHTML; use File::Basename; # https://www.redhat.com/archives/libguestfs/2013-May/thread.html#00088 eval { $Text::Wrap::huge = "overflow" }; =head1 NAME podwrapper.pl - generate documentation from POD input files =head1 SYNOPSIS EXTRA_DIST = foo.pod if HAVE_POD man_MANS = foo.1 CLEANFILES += $(man_MANS) foo.1: foo.pod $(PODWRAPPER) --section 1 --man $@ \ --html $(top_builddir)/html/$@.html \ $< endif HAVE_POD =head1 DESCRIPTION podwrapper.pl is a Perl script that generates various output formats from POD input files that libnbd uses for most documentation. You must specify one input file, and one or more output formats. The output options are I<--man>, I<--html> and I<--text> (see below). In C files, use a variation of the boilerplate shown in the L section above. For information about the POD format, see L. =head1 OPTIONS =over 4 =cut my $help; =item B<--help> Display brief help. =cut my $allow_long_lines; =item B<--allow-long-lines> Allow lines longer than 76 characters in the input. Use this if the man page is not written by hand. =cut my $html; =item B<--html output.html> Write a web page to C. If this option is not given, then no web page output is produced. =cut my @inserts; =item B<--insert filename:__PATTERN__> In the input file, replace the literal text C<__PATTERN__> with the replacement file C. You can give this option multiple times. The contents of C are treated as POD. Compare and contrast with I<--verbatim>. Although it is conventional to use C<__...__> (double underscores) for patterns, in fact you can use any string as the pattern. =cut my $man; =item B<--man output.n> Write a man page to C (C is the manual section number). If this option is not given, then no man page output is produced. =cut my $name; =item B<--name name> Set the name of the man page. If not set, defaults to the basename of the input file. =cut my $section; =item B<--section N> Set the section of the man page (a number such as C<1> for command line utilities or C<3> for C API documentation). If not set, defaults to C<1>. =cut my $text; =item B<--text output.txt> Write a text file to C. If this option is not given, then no text output is produced. =cut my @verbatims; =item B<--verbatim filename:__PATTERN__> In the input file, replace the literal text C<__PATTERN__> with the replacement file C. You can give this option multiple times. The contents of C are inserted as verbatim text, and are I interpreted as POD. Compare and contrast with I<--insert>. Although it is conventional to use C<__...__> (double underscores) for patterns, in fact you can use any string as the pattern. =cut # Clean up the program name. my $progname = $0; $progname =~ s{.*/}{}; # Parse options. GetOptions ("help|?" => \$help, "allow-long-lines" => \$allow_long_lines, "html=s" => \$html, "insert=s" => \@inserts, "man=s" => \$man, "name=s" => \$name, "section=s" => \$section, "text=s" => \$text, "verbatim=s" => \@verbatims, ) or pod2usage (2); pod2usage (1) if $help; die "$progname: missing argument: podwrapper input.pod\n" unless @ARGV == 1; my $input = $ARGV[0]; # There should be at least one output. die "$progname: $input: no output format specified. Use --man and/or --html and/or --text.\n" unless defined $man || defined $html || defined $text; # Default for $name and $section. $name = basename ($input, ".pod") unless defined $name; $section = 1 unless defined $section; # Note that these @...@ are substituted by ./configure. my $abs_top_srcdir = "@abs_top_srcdir@"; my $abs_top_builddir = "@abs_top_builddir@"; my $package_name = "@PACKAGE_NAME@"; my $package_version = "@PACKAGE_VERSION@"; die "$progname: ./configure substitutions were not performed" unless $abs_top_srcdir && $abs_top_builddir && $package_name && $package_version; # Create a stable date (thanks Hilko Bengen). my $date; my $filename = "$abs_top_srcdir/.git"; if (!$date && -d $filename) { local $ENV{GIT_DIR} = $filename; $_ = `git show -O/dev/null -s --format=%ci`; $date = $1 if /^(\d+-\d+-\d+)\s/; } if (!$date) { my ($day, $month, $year) = (gmtime($ENV{SOURCE_DATE_EPOCH} || time))[3,4,5]; $date = sprintf ("%04d-%02d-%02d", $year+1900, $month+1, $day); } # Create a release string. my $release = "$package_name-$package_version"; #print "input=$input\n"; #print "name=$name\n"; #print "section=$section\n"; #print "date=$date\n"; # Read the input. my $content = read_whole_file ($input); # Perform @inserts. foreach (@inserts) { my @a = split /:/, $_, 2; die "$progname: $input: no colon in parameter of --insert\n" unless @a >= 2; my $replacement = read_whole_file ($a[0]); my $oldcontent = $content; $content =~ s/$a[1]/$replacement/ge; die "$progname: $input: could not find pattern '$a[1]' in input file\n" if $content eq $oldcontent; } # Turn external links to this man page into simple cross-section links. $content =~ s,\QL<$name($section)/\E,L= 2; my $replacement = read_verbatim_file ($a[0]); my $oldcontent = $content; $content =~ s/$a[1]/$replacement/ge; die "$progname: $input: could not find pattern '$a[1]' in input file\n" if $content eq $oldcontent; } # There should be no =encoding line present in the content (we will add one). die "$progname: $input: =encoding must not be present in input\n" if $content =~ /^=encoding/m; $content =~ s/^=(.*)/\n=encoding utf8\n\n=$1/m; # Verify sections present / not present. die "$progname: $input: missing NAME section\n" if $content !~ /^=head1 NAME/m; die "$progname: $input: missing DESCRIPTION section\n" if $content !~ /^=head1 DESCRIPTION/m; die "$progname: $input: missing AUTHOR or AUTHORS section\n" unless $content =~ /^=head1 AUTHOR/m; die "$progname: $input: missing SEE ALSO section\n" unless $content =~ /^=head1 SEE ALSO/m; die "$progname: $input: missing COPYRIGHT section\n" unless $content =~ /^=head1 COPYRIGHT/m; die "$progname: $input: BUGS is now added automatically, do not add it to the POD file\n" if $content =~ /^=head1 (REPORTING )?BUGS/m; die "$progname: $input: LICENSE is now added automatically, do not add it to the POD file\n" if $content =~ /^=head1 LICENSE/m; # Check NAME section conformity. my @lines = split /\n/, $content; my @name; foreach (@lines) { push @name, $_ if /^=head1 NAME/../^=head1 (?!NAME)/ } shift @name; # remove =head1 and empty line shift @name; # from beginning and end pop @name; pop @name; die "$progname: $input: empty NAME section\n" unless @name >= 1; die "$progname: $input: NAME doesn't start with libnbd\n" unless $name[0] =~ m/^libnbd/ || $name[0] =~ m/^nbd/; die "$progname: $input: NAME does not conform with Linux man pages standard\n" if $name[0] !~ m/- [a-z]/ || $name[@name-1] =~ m/\.$/; # Add standard LICENSE section at the end. $content .= " =head1 LICENSE This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA "; @lines = split /\n/, $content; unless ($allow_long_lines) { # Check no over-long lines in the input. (As a special exception # this is permitted in verbatim sections or if the line contains a # URL). foreach (@lines) { die "$progname: $input: line too long:\n$_\n" if length $_ > 76 && substr ($_, 0, 1) ne ' ' && ! m/https?:/; } } # Output man page. SUBMAN: { package Podwrapper::Man; use vars qw(@ISA $VERSION); @ISA = qw(Pod::Man); $VERSION = $package_version; # Override the L<> method. sub cmd_l { my ($self, $attrs, $text) = @_; return $text; } } if ($man) { my $parser = Podwrapper::Man->new ( name => $name, release => $release, section => $section, center => "LIBNBD", date => $date, stderr => 1, utf8 => 1 ); my $output; $parser->no_errata_section (1); $parser->complain_stderr (1); $parser->output_string (\$output); $parser->parse_string_document ($content) or die "$progname: could not parse input document"; open OUT, ">$man" or die "$progname: $man: $!"; print OUT $output or die "$progname: $man: $!"; close OUT or die "$progname: $man: $!"; if ($parser->any_errata_seen) { unlink $man; die "$input: errors or warnings in this POD file, see messages above\n" } #print "$progname: wrote $man\n"; } # Output HTML. SUBHTML: { # Subclass Pod::Simple::XHTML. See the documentation. package Podwrapper::XHTML; use vars qw(@ISA $VERSION); @ISA = qw(Pod::Simple::XHTML); $VERSION = $package_version; sub is_a_local_page { local $_ = shift; return 1 if /^Sys::Guestfs/; return 0 if /^virt-install/; return 1 if /^virt-/; return 1 if /^libguestf/; return 1 if /^guestf/; return 1 if /^guestmount/; return 1 if /^guestunmount/; return 1 if /^hivex/; return 1 if /^supermin/; return 1 if /^libnbd/; return 1 if /^nbd/; return 0; } sub resolve_man_page_link { my $self = shift; my $name = $_[0]; # eg. "libnbd(3)", can be undef my $anchor = $_[1]; # eg. "SYNOPSIS", can be undef my $r = ""; if (defined $name) { return $self->SUPER::resolve_man_page_link (@_) unless is_a_local_page ($name); $name =~ s/\((.*)\)$/.$1/; $r .= "$name.html"; } $r .= "#" . $self->idify ($anchor, 1) if defined $anchor; $r; } # For some reason Pod::Simple::XHTML usually cannot find a # title for the page. This defaults the HTML field # to the same as the man page name. sub default_title { $name } } if ($html) { mkdir "$abs_top_builddir/html"; my $parser = Podwrapper::XHTML->new; my $output; $parser->no_errata_section (1); $parser->complain_stderr (1); $parser->output_string (\$output); # Added in Pod::Simple 3.16, 2011-03-14. eval { $parser->html_charset ("UTF-8") }; $parser->html_css ("pod.css"); $parser->index (1); $parser->parse_string_document ($content); # Hack for Perl 5.16. $output =~ s{/>pod.css<}{/>\n<}; open OUT, ">$html" or die "$progname: $html: $!"; print OUT $output or die "$progname: $html: $!"; close OUT or die "$progname: $html: $!"; if ($parser->any_errata_seen) { unlink $html; die "$input: errors or warnings in this POD file, see messages above\n" } #print "$progname: wrote $html\n"; } # Output text. if ($text) { my $parser = Pod::Simple::Text->new; my $output; $parser->no_errata_section (1); $parser->complain_stderr (1); $parser->output_string (\$output); $parser->parse_string_document ($content); open OUT, ">$text" or die "$progname: $text: $!"; binmode OUT, ":utf8"; print OUT $output or die "$progname: $text: $!"; close OUT or die "$progname: $text: $!"; if ($parser->any_errata_seen) { unlink $text; die "$input: errors or warnings in this POD file, see messages above\n" } #print "$progname: wrote $text\n"; } sub read_whole_file { my $input = shift; local $/ = undef; open FILE, "<:encoding(UTF-8)", $input or die "$progname: $input: $!"; $_ = <FILE>; close FILE; $_; } sub read_verbatim_file { my $input = shift; my $r = ""; open FILE, "<:encoding(UTF-8)", $input or die "$progname: $input: $!"; while (<FILE>) { $r .= " $_"; } close FILE; $r; } =head1 SEE ALSO L<perlpod(1)>, L<Pod::Simple(3pm)>. =head1 AUTHOR Richard W.M. Jones. =head1 COPYRIGHT Copyright (C) 2012-2018 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/run.in���������������������������������������������������������������������������������0000775�0001750�0001750�00000006647�13551165722�011054� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # libnbd 'run' programs locally script # Copyright (C) 2011-2019 Red Hat Inc. # # @configure_input@ # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA #---------------------------------------------------------------------- # With this script you can run libnbd programs without needing to # install libnbd first. You just have to do for example: # # ./run nbdsh # # or: # # ./run /path/to/my/libnbd/program # # or: # # ./run python # >>> import nbd # locally-compiled nbd module # # This works for any C program and most non-C bindings. #---------------------------------------------------------------------- # Function to intelligently prepend a path to an environment variable. # See http://stackoverflow.com/a/9631350 prepend() { eval $1="$2\${$1:+:\$$1}" } # Source and build directories (absolute paths so this works from any # directory). s="$(cd @abs_srcdir@ && pwd)" b="$(cd @abs_builddir@ && pwd)" # Set the PATH to contain all libnbd binaries. prepend PATH "$b/fuse" prepend PATH "$b/sh" export PATH # Set LD_LIBRARY_PATH and DYLD_LIBRARY_PATH to contain library. prepend LD_LIBRARY_PATH "$b/lib/.libs" prepend DYLD_LIBRARY_PATH "$b/lib/.libs" export LD_LIBRARY_PATH export DYLD_LIBRARY_PATH # For Python. export PYTHON="@PYTHON@" prepend PYTHONPATH "$b/python/.libs" prepend PYTHONPATH "$b/python" prepend PYTHONPATH "$s/python" export PYTHONPATH # For OCaml. prepend CAML_LD_LIBRARY_PATH "$b/ocaml" export CAML_LD_LIBRARY_PATH # This is a cheap way to find some use-after-free and uninitialized # read problems when using glibc. export MALLOC_CHECK_=1 random_val="$(@AWK@ 'BEGIN{srand(); print 1+int(255*rand())}' < /dev/null)" export MALLOC_PERTURB_=$random_val # Do we have libtool? If we have it then we can use it to make # running valgrind simpler. However don't depend on it. if libtool --help >/dev/null 2>&1; then libtool="libtool --mode=execute" fi # Use valgrind? # # If we're running a binary then apply valgrind directly to it. # # If it's a shell script then we set $VG and the script must run any # valgrinded programs by using $VG explicitly (note this variable is # not set if not valgrinding). # # Unfortunately the obvious thing of running ‘file $1’ will not work # because of libtool, so we have to base this off the file extension. if [ "x$LIBNBD_VALGRIND" = "x1" ]; then _VG="valgrind --vgdb=no --leak-check=full --show-leak-kinds=all --error-exitcode=119 --suppressions=$b/valgrind/suppressions --trace-children=no --run-libc-freeres=no --num-callers=100" case "$1" in *.sh) VG="$libtool $_VG"; export VG ;; *) valgrind="$_VG" ;; esac fi # Avoid GNOME keyring stupidity export GNOME_KEYRING_CONTROL= export GNOME_KEYRING_PID= # Run the program. exec $libtool $valgrind "$@" �����������������������������������������������������������������������������������������libnbd-1.2.2/common-rules.mk������������������������������������������������������������������������0000664�0001750�0001750�00000002273�13532152621�012646� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # common-rules.mk is included in every Makefile.am. # subdir-rules.mk is included only in subdirectories. # Convenient list terminator NULL = CLEANFILES = *~ $(generator_built): $(top_builddir)/generator/stamp-generator $(top_builddir)/generator/stamp-generator: \ $(top_srcdir)/generator/generator \ $(wildcard $(top_srcdir)/generator/states*.c) $(MAKE) -C $(top_builddir)/generator stamp-generator �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/COPYING.LIB����������������������������������������������������������������������������0000664�0001750�0001750�00000064227�13524776043�011357� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������This is the general license covering libnbd. The example code (in the examples/ subdirectory) is distributed under a different license, see examples/LICENSE-FOR-EXAMPLES. ---------------------------------------------------------------------- GNU LESSER GENERAL PUBLIC LICENSE Version 2.1, February 1999 Copyright (C) 1991, 1999 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. [This is the first released version of the Lesser GPL. It also counts as the successor of the GNU Library Public License, version 2, hence the version number 2.1.] Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public Licenses are intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. 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To apply these terms, attach the following notices to the library. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. <one line to give the library's name and a brief idea of what it does.> Copyright (C) <year> <name of author> This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. 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Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the library `Frob' (a library for tweaking knobs) written by James Random Hacker. <signature of Ty Coon>, 1 April 1990 Ty Coon, President of Vice That's all there is to it! �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/README���������������������������������������������������������������������������������0000664�0001750�0001750�00000006436�13571455305�010572� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������NBD client library in userspace NBD — Network Block Device — is a protocol for accessing Block Devices (hard disks and disk-like things) over a Network. This is the NBD client library in userspace, a simple library for writing NBD clients. The key features are: * Synchronous API for ease of use. * Asynchronous API for writing non-blocking, multithreaded clients. You can mix both APIs freely. * High performance. * Minimal dependencies for the basic library. * Well-documented, stable API. * Bindings in several programming languages. * Shell (nbdsh) for command line and scripting. For documentation, see the ‘docs/’ and ‘examples/’ subdirectories. LICENSE ======= The software is copyright © Red Hat Inc. and licensed under the GNU Lesser General Public License version 2 or above (LGPLv2+). See the file ‘COPYING.LIB’ for details. The examples are under a very liberal license. BUILDING FROM SOURCE ==================== To build from git: autoreconf -i ./configure make make check To build from tarball: ./configure make make check To run the tests under valgrind: make check-valgrind Requirements: * Linux, FreeBSD or OpenBSD. Other OSes may also work but we have only tested these three. * GCC or Clang * GNU make * bash Required for building from git, optional for tarballs: * OCaml is required to run the generator, which is needed for building from git. However it is not needed if building from tarballs. Optional: * GnuTLS is recommended for TLS support. If not available then you will not be able to access encrypted servers and some APIs related to TLS will always return an error. * libxml2 is recommended for NBD URI support. If not available then a few APIs related to URIs will always return an error. * Perl Pod::Man and Pod::Simple to generate the documentation. * OCaml and ocamlfind are both needed to generate the OCaml bindings. * Python >= 3.3 to build the Python 3 bindings and NBD shell (nbdsh). * FUSE to build the nbdfuse program. Optional, only needed to run the test suite: * nbdkit >= 1.12, the nbdkit basic plugins and the nbdkit basic filters are recommended as they are needed to run the test suite. * nbdkit, nbd-server and qemu-nbd if you want to do interoperability testing against these servers. * A C++ compiler is needed if you want to test that the library works from C++. * qemu, qemu-io, qemu-img for interoperability testing. * glib2 for examples that interoperate with the glib main loop. * psktool and certtool (part of GnuTLS) for testing TLS support. * valgrind if you want to run the tests under valgrind. DOWNLOAD TARBALLS ================= Tarballs are available from: http://libguestfs.org/download/libnbd DEVELOPERS ========== Install the valgrind program and development headers. Use: ./configure --enable-gcc-warnings When testing use: make check make check-valgrind For development ideas, see the TODO file. The upstream git repository is: https://github.com/libguestfs/libnbd Please send patches to the libguestfs mailing list: https://www.redhat.com/mailman/listinfo/libguestfs For further information, see: http://libguestfs.org/ https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md https://github.com/libguestfs/nbdkit ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/TODO�����������������������������������������������������������������������������������0000664�0001750�0001750�00000004531�13563236621�010373� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������Explore if nbd_aio_notify_error is needed for faster response if server goes away. Bindings in other languages. - Latest attempt at adding Rust: https://www.redhat.com/archives/libguestfs/2019-August/msg00416.html Example code integrating with ppoll, pollfd, APR pollset (and others?). Example command line utils to copy in/out (like qemu-img convert). NBD_OPT_INFO mode (like qemu-nbd -L). NBD resize extension. NBD_INFO_BLOCK_SIZE. TLS should properly shut down the session (calling gnutls_bye). Performance: Chart it over various buffer sizes and threads, as that should make it easier to identify systematic issues. Examine other fuzzers: https://gitlab.com/akihe/radamsa Improve function trace output so that: - Long strings are truncated. - Strings with non-printable characters are escaped. - Buffers are partially printed. - Lists of strings are printed. Should we ship a "nbdcp" copying tool? - Could upload, download or copy between servers. - Duplicates functionality already available in qemu-img convert. nbdfuse: - If you write beyond the end of the virtual file, it returns EIO. - Implement trim/discard. - Implement write_zeroes. - Implement block_status. - Could be made multithreaded for improved performance. Suggested API improvements: general: - synchronous APIs that have a timeout or can be cancelled connecting: - nbd_connect_tcp: allow control over whether IPv4 or IPv6 is desired - nbd_connect_uri: allow control over which features are enabled - nbd_connect_command: allow passing char **env - connection completed callback TLS: - should be individual APIs for setting each TLS file (set_tls_certificates can continue to exist) - TLS should have a way to pass in PIN or password to support encrypted keys - allow use of TLS memory APIs (gnutls_datum_t + gnutls_*_mem) - support PKCS11 URIs (RFC 7512) Easier server implementation testing: - a way to force NBD_OPT_EXPORT_NAME over NBD_OPT_GO - a way to forcefully violate protocol (such as allowing writes to a readonly connection, or sending a request that exceeds bounds) for testing server reactions subprocess - it should be possible to use nbd_close and never block, so maybe nbd_shutdown should wait for the subprocess or there should be another API to do this - capture error message when nbd_connect_command fails �����������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/compile��������������������������������������������������������������������������������0000755�0001750�0001750�00000016327�13465556606�011276� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#! /bin/sh # Wrapper for compilers which do not understand '-c -o'. scriptversion=2018-03-07.03; # UTC # Copyright (C) 1999-2018 Free Software Foundation, Inc. # Written by Tom Tromey <tromey@cygnus.com>. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see <https://www.gnu.org/licenses/>. # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that # program. This Exception is an additional permission under section 7 # of the GNU General Public License, version 3 ("GPLv3"). # # Originally written by Per Bothner; maintained since 2000 by Ben Elliston. # # You can get the latest version of this script from: # https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess # # Please send patches to <config-patches@gnu.org>. me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] Output the configuration name of the system \`$me' is run on. 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then IBM_ARCH=rs6000 else IBM_ARCH=powerpc fi if [ -x /usr/bin/lslpp ] ; then IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | awk -F: '{ print $3 }' | sed s/[0-9]*$/0/` else IBM_REV="$UNAME_VERSION.$UNAME_RELEASE" fi echo "$IBM_ARCH"-ibm-aix"$IBM_REV" exit ;; *:AIX:*:*) echo rs6000-ibm-aix exit ;; ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*) echo romp-ibm-bsd4.4 exit ;; ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and echo romp-ibm-bsd"$UNAME_RELEASE" # 4.3 with uname added to exit ;; # report: romp-ibm BSD 4.3 *:BOSX:*:*) echo rs6000-bull-bosx exit ;; DPX/2?00:B.O.S.:*:*) echo m68k-bull-sysv3 exit ;; 9000/[34]??:4.3bsd:1.*:*) echo m68k-hp-bsd exit ;; hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) echo m68k-hp-bsd4.4 exit ;; 9000/[34678]??:HP-UX:*:*) HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` case "$UNAME_MACHINE" in 9000/31?) HP_ARCH=m68000 ;; 9000/[34]??) HP_ARCH=m68k ;; 9000/[678][0-9][0-9]) if [ -x /usr/bin/getconf ]; then sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` case "$sc_cpu_version" in 523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0 528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1 532) # CPU_PA_RISC2_0 case "$sc_kernel_bits" in 32) HP_ARCH=hppa2.0n ;; 64) HP_ARCH=hppa2.0w ;; '') HP_ARCH=hppa2.0 ;; # HP-UX 10.20 esac ;; esac fi if [ "$HP_ARCH" = "" ]; then eval "$set_cc_for_build" sed 's/^ //' << EOF > "$dummy.c" #define _HPUX_SOURCE #include <stdlib.h> #include <unistd.h> int main () { #if defined(_SC_KERNEL_BITS) long bits = sysconf(_SC_KERNEL_BITS); #endif long cpu = sysconf (_SC_CPU_VERSION); switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0"); break; case CPU_PA_RISC1_1: puts ("hppa1.1"); break; case CPU_PA_RISC2_0: #if defined(_SC_KERNEL_BITS) switch (bits) { case 64: puts ("hppa2.0w"); break; case 32: puts ("hppa2.0n"); break; default: puts ("hppa2.0"); break; } break; #else /* !defined(_SC_KERNEL_BITS) */ puts ("hppa2.0"); break; #endif default: puts ("hppa1.0"); break; } exit (0); } EOF (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"` test -z "$HP_ARCH" && HP_ARCH=hppa fi ;; esac if [ "$HP_ARCH" = hppa2.0w ] then eval "$set_cc_for_build" # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler # generating 64-bit code. GNU and HP use different nomenclature: # # $ CC_FOR_BUILD=cc ./config.guess # => hppa2.0w-hp-hpux11.23 # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess # => hppa64-hp-hpux11.23 if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | grep -q __LP64__ then HP_ARCH=hppa2.0w else HP_ARCH=hppa64 fi fi echo "$HP_ARCH"-hp-hpux"$HPUX_REV" exit ;; ia64:HP-UX:*:*) HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` echo ia64-hp-hpux"$HPUX_REV" exit ;; 3050*:HI-UX:*:*) eval "$set_cc_for_build" sed 's/^ //' << EOF > "$dummy.c" #include <unistd.h> int main () { long cpu = sysconf (_SC_CPU_VERSION); /* The order matters, because CPU_IS_HP_MC68K erroneously returns true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct results, however. */ if (CPU_IS_PA_RISC (cpu)) { switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; default: puts ("hppa-hitachi-hiuxwe2"); break; } } else if (CPU_IS_HP_MC68K (cpu)) puts ("m68k-hitachi-hiuxwe2"); else puts ("unknown-hitachi-hiuxwe2"); exit (0); } EOF $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` && { echo "$SYSTEM_NAME"; exit; } echo unknown-hitachi-hiuxwe2 exit ;; 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*) echo hppa1.1-hp-bsd exit ;; 9000/8??:4.3bsd:*:*) echo hppa1.0-hp-bsd exit ;; *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) echo hppa1.0-hp-mpeix exit ;; hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*) echo hppa1.1-hp-osf exit ;; hp8??:OSF1:*:*) echo hppa1.0-hp-osf exit ;; i*86:OSF1:*:*) if [ -x /usr/sbin/sysversion ] ; then echo "$UNAME_MACHINE"-unknown-osf1mk else echo "$UNAME_MACHINE"-unknown-osf1 fi exit ;; parisc*:Lites*:*:*) echo hppa1.1-hp-lites exit ;; C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) echo c1-convex-bsd exit ;; C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) echo c34-convex-bsd exit ;; C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) echo c38-convex-bsd exit ;; C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) echo c4-convex-bsd exit ;; CRAY*Y-MP:*:*:*) echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*[A-Z]90:*:*:*) echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \ | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ -e 's/\.[^.]*$/.X/' exit ;; CRAY*TS:*:*:*) echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*T3E:*:*:*) echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*SV1:*:*:*) echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; *:UNICOS/mp:*:*) echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz` FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'` echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; 5000:UNIX_System_V:4.*:*) FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'` echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE" exit ;; sparc*:BSD/OS:*:*) echo sparc-unknown-bsdi"$UNAME_RELEASE" exit ;; *:BSD/OS:*:*) echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE" exit ;; *:FreeBSD:*:*) UNAME_PROCESSOR=`/usr/bin/uname -p` case "$UNAME_PROCESSOR" in amd64) UNAME_PROCESSOR=x86_64 ;; i386) UNAME_PROCESSOR=i586 ;; esac echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" exit ;; i*:CYGWIN*:*) echo "$UNAME_MACHINE"-pc-cygwin exit ;; *:MINGW64*:*) echo "$UNAME_MACHINE"-pc-mingw64 exit ;; *:MINGW*:*) echo "$UNAME_MACHINE"-pc-mingw32 exit ;; *:MSYS*:*) echo "$UNAME_MACHINE"-pc-msys exit ;; i*:PW*:*) echo "$UNAME_MACHINE"-pc-pw32 exit ;; *:Interix*:*) case "$UNAME_MACHINE" in x86) echo i586-pc-interix"$UNAME_RELEASE" exit ;; authenticamd | genuineintel | EM64T) echo x86_64-unknown-interix"$UNAME_RELEASE" exit ;; IA64) echo ia64-unknown-interix"$UNAME_RELEASE" exit ;; esac ;; i*:UWIN*:*) echo "$UNAME_MACHINE"-pc-uwin exit ;; amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) echo x86_64-unknown-cygwin exit ;; prep*:SunOS:5.*:*) echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" exit ;; *:GNU:*:*) # the GNU system echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`" exit ;; *:GNU/*:*:*) # other systems with GNU libc and userland echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC" exit ;; i*86:Minix:*:*) echo "$UNAME_MACHINE"-pc-minix exit ;; aarch64:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; aarch64_be:Linux:*:*) UNAME_MACHINE=aarch64_be echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; alpha:Linux:*:*) case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in EV5) UNAME_MACHINE=alphaev5 ;; EV56) UNAME_MACHINE=alphaev56 ;; PCA56) UNAME_MACHINE=alphapca56 ;; PCA57) UNAME_MACHINE=alphapca56 ;; EV6) UNAME_MACHINE=alphaev6 ;; EV67) UNAME_MACHINE=alphaev67 ;; EV68*) UNAME_MACHINE=alphaev68 ;; esac objdump --private-headers /bin/sh | grep -q ld.so.1 if test "$?" = 0 ; then LIBC=gnulibc1 ; fi echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; arc:Linux:*:* | arceb:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; arm*:Linux:*:*) eval "$set_cc_for_build" if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_EABI__ then echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" else if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_PCS_VFP then echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi else echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf fi fi exit ;; avr32*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; cris:Linux:*:*) echo "$UNAME_MACHINE"-axis-linux-"$LIBC" exit ;; crisv32:Linux:*:*) echo "$UNAME_MACHINE"-axis-linux-"$LIBC" exit ;; e2k:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; frv:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; hexagon:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; i*86:Linux:*:*) echo "$UNAME_MACHINE"-pc-linux-"$LIBC" exit ;; ia64:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; k1om:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; m32r*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; m68*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; mips:Linux:*:* | mips64:Linux:*:*) eval "$set_cc_for_build" sed 's/^ //' << EOF > "$dummy.c" #undef CPU #undef ${UNAME_MACHINE} #undef ${UNAME_MACHINE}el #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) CPU=${UNAME_MACHINE}el #else #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) CPU=${UNAME_MACHINE} #else CPU= #endif #endif EOF eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`" test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; } ;; mips64el:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; openrisc*:Linux:*:*) echo or1k-unknown-linux-"$LIBC" exit ;; or32:Linux:*:* | or1k*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; padre:Linux:*:*) echo sparc-unknown-linux-"$LIBC" exit ;; parisc64:Linux:*:* | hppa64:Linux:*:*) echo hppa64-unknown-linux-"$LIBC" exit ;; parisc:Linux:*:* | hppa:Linux:*:*) # Look for CPU level case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;; PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;; *) echo hppa-unknown-linux-"$LIBC" ;; esac exit ;; ppc64:Linux:*:*) echo powerpc64-unknown-linux-"$LIBC" exit ;; ppc:Linux:*:*) echo powerpc-unknown-linux-"$LIBC" exit ;; ppc64le:Linux:*:*) echo powerpc64le-unknown-linux-"$LIBC" exit ;; ppcle:Linux:*:*) echo powerpcle-unknown-linux-"$LIBC" exit ;; riscv32:Linux:*:* | riscv64:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; s390:Linux:*:* | s390x:Linux:*:*) echo "$UNAME_MACHINE"-ibm-linux-"$LIBC" exit ;; sh64*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; sh*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; sparc:Linux:*:* | sparc64:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; tile*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; vax:Linux:*:*) echo "$UNAME_MACHINE"-dec-linux-"$LIBC" exit ;; x86_64:Linux:*:*) echo "$UNAME_MACHINE"-pc-linux-"$LIBC" exit ;; xtensa*:Linux:*:*) echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; i*86:DYNIX/ptx:4*:*) # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. # earlier versions are messed up and put the nodename in both # sysname and nodename. echo i386-sequent-sysv4 exit ;; i*86:UNIX_SV:4.2MP:2.*) # Unixware is an offshoot of SVR4, but it has its own version # number series starting with 2... # I am not positive that other SVR4 systems won't match this, # I just have to hope. -- rms. # Use sysv4.2uw... so that sysv4* matches it. echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION" exit ;; i*86:OS/2:*:*) # If we were able to find `uname', then EMX Unix compatibility # is probably installed. echo "$UNAME_MACHINE"-pc-os2-emx exit ;; i*86:XTS-300:*:STOP) echo "$UNAME_MACHINE"-unknown-stop exit ;; i*86:atheos:*:*) echo "$UNAME_MACHINE"-unknown-atheos exit ;; i*86:syllable:*:*) echo "$UNAME_MACHINE"-pc-syllable exit ;; i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) echo i386-unknown-lynxos"$UNAME_RELEASE" exit ;; i*86:*DOS:*:*) echo "$UNAME_MACHINE"-pc-msdosdjgpp exit ;; i*86:*:4.*:*) UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'` if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL" else echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL" fi exit ;; i*86:*:5:[678]*) # UnixWare 7.x, OpenUNIX and OpenServer 6. case `/bin/uname -X | grep "^Machine"` in *486*) UNAME_MACHINE=i486 ;; *Pentium) UNAME_MACHINE=i586 ;; *Pent*|*Celeron) UNAME_MACHINE=i686 ;; esac echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}" exit ;; i*86:*:3.2:*) if test -f /usr/options/cb.name; then UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name` echo "$UNAME_MACHINE"-pc-isc"$UNAME_REL" elif /bin/uname -X 2>/dev/null >/dev/null ; then UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ && UNAME_MACHINE=i586 (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ && UNAME_MACHINE=i686 (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ && UNAME_MACHINE=i686 echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL" else echo "$UNAME_MACHINE"-pc-sysv32 fi exit ;; pc:*:*:*) # Left here for compatibility: # uname -m prints for DJGPP always 'pc', but it prints nothing about # the processor, so we play safe by assuming i586. # Note: whatever this is, it MUST be the same as what config.sub # prints for the "djgpp" host, or else GDB configure will decide that # this is a cross-build. echo i586-pc-msdosdjgpp exit ;; Intel:Mach:3*:*) echo i386-pc-mach3 exit ;; paragon:*:*:*) echo i860-intel-osf1 exit ;; i860:*:4.*:*) # i860-SVR4 if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4 else # Add other i860-SVR4 vendors below as they are discovered. echo i860-unknown-sysv"$UNAME_RELEASE" # Unknown i860-SVR4 fi exit ;; mini*:CTIX:SYS*5:*) # "miniframe" echo m68010-convergent-sysv exit ;; mc68k:UNIX:SYSTEM5:3.51m) echo m68k-convergent-sysv exit ;; M680?0:D-NIX:5.3:*) echo m68k-diab-dnix exit ;; M68*:*:R3V[5678]*:*) test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) OS_REL='' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;; 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4; exit; } ;; NCR*:*:4.2:* | MPRAS*:*:4.2:*) OS_REL='.3' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;; m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) echo m68k-unknown-lynxos"$UNAME_RELEASE" exit ;; mc68030:UNIX_System_V:4.*:*) echo m68k-atari-sysv4 exit ;; TSUNAMI:LynxOS:2.*:*) echo sparc-unknown-lynxos"$UNAME_RELEASE" exit ;; rs6000:LynxOS:2.*:*) echo rs6000-unknown-lynxos"$UNAME_RELEASE" exit ;; PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) echo powerpc-unknown-lynxos"$UNAME_RELEASE" exit ;; SM[BE]S:UNIX_SV:*:*) echo mips-dde-sysv"$UNAME_RELEASE" exit ;; RM*:ReliantUNIX-*:*:*) echo mips-sni-sysv4 exit ;; RM*:SINIX-*:*:*) echo mips-sni-sysv4 exit ;; *:SINIX-*:*:*) if uname -p 2>/dev/null >/dev/null ; then UNAME_MACHINE=`(uname -p) 2>/dev/null` echo "$UNAME_MACHINE"-sni-sysv4 else echo ns32k-sni-sysv fi exit ;; PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort # says <Richard.M.Bartel@ccMail.Census.GOV> echo i586-unisys-sysv4 exit ;; *:UNIX_System_V:4*:FTX*) # From Gerald Hewes <hewes@openmarket.com>. # How about differentiating between stratus architectures? -djm echo hppa1.1-stratus-sysv4 exit ;; *:*:*:FTX*) # From seanf@swdc.stratus.com. echo i860-stratus-sysv4 exit ;; i*86:VOS:*:*) # From Paul.Green@stratus.com. echo "$UNAME_MACHINE"-stratus-vos exit ;; *:VOS:*:*) # From Paul.Green@stratus.com. echo hppa1.1-stratus-vos exit ;; mc68*:A/UX:*:*) echo m68k-apple-aux"$UNAME_RELEASE" exit ;; news*:NEWS-OS:6*:*) echo mips-sony-newsos6 exit ;; R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) if [ -d /usr/nec ]; then echo mips-nec-sysv"$UNAME_RELEASE" else echo mips-unknown-sysv"$UNAME_RELEASE" fi exit ;; BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. echo powerpc-be-beos exit ;; BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. echo powerpc-apple-beos exit ;; BePC:BeOS:*:*) # BeOS running on Intel PC compatible. echo i586-pc-beos exit ;; BePC:Haiku:*:*) # Haiku running on Intel PC compatible. echo i586-pc-haiku exit ;; x86_64:Haiku:*:*) echo x86_64-unknown-haiku exit ;; SX-4:SUPER-UX:*:*) echo sx4-nec-superux"$UNAME_RELEASE" exit ;; SX-5:SUPER-UX:*:*) echo sx5-nec-superux"$UNAME_RELEASE" exit ;; SX-6:SUPER-UX:*:*) echo sx6-nec-superux"$UNAME_RELEASE" exit ;; SX-7:SUPER-UX:*:*) echo sx7-nec-superux"$UNAME_RELEASE" exit ;; SX-8:SUPER-UX:*:*) echo sx8-nec-superux"$UNAME_RELEASE" exit ;; SX-8R:SUPER-UX:*:*) echo sx8r-nec-superux"$UNAME_RELEASE" exit ;; SX-ACE:SUPER-UX:*:*) echo sxace-nec-superux"$UNAME_RELEASE" exit ;; Power*:Rhapsody:*:*) echo powerpc-apple-rhapsody"$UNAME_RELEASE" exit ;; *:Rhapsody:*:*) echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE" exit ;; *:Darwin:*:*) UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown eval "$set_cc_for_build" if test "$UNAME_PROCESSOR" = unknown ; then UNAME_PROCESSOR=powerpc fi if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then if [ "$CC_FOR_BUILD" != no_compiler_found ]; then if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_64BIT_ARCH >/dev/null then case $UNAME_PROCESSOR in i386) UNAME_PROCESSOR=x86_64 ;; powerpc) UNAME_PROCESSOR=powerpc64 ;; esac fi # On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \ (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_PPC >/dev/null then UNAME_PROCESSOR=powerpc fi fi elif test "$UNAME_PROCESSOR" = i386 ; then # Avoid executing cc on OS X 10.9, as it ships with a stub # that puts up a graphical alert prompting to install # developer tools. Any system running Mac OS X 10.7 or # later (Darwin 11 and later) is required to have a 64-bit # processor. This is not true of the ARM version of Darwin # that Apple uses in portable devices. UNAME_PROCESSOR=x86_64 fi echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE" exit ;; *:procnto*:*:* | *:QNX:[0123456789]*:*) UNAME_PROCESSOR=`uname -p` if test "$UNAME_PROCESSOR" = x86; then UNAME_PROCESSOR=i386 UNAME_MACHINE=pc fi echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE" exit ;; *:QNX:*:4*) echo i386-pc-qnx exit ;; NEO-*:NONSTOP_KERNEL:*:*) echo neo-tandem-nsk"$UNAME_RELEASE" exit ;; NSE-*:NONSTOP_KERNEL:*:*) echo nse-tandem-nsk"$UNAME_RELEASE" exit ;; NSR-*:NONSTOP_KERNEL:*:*) echo nsr-tandem-nsk"$UNAME_RELEASE" exit ;; NSV-*:NONSTOP_KERNEL:*:*) echo nsv-tandem-nsk"$UNAME_RELEASE" exit ;; NSX-*:NONSTOP_KERNEL:*:*) echo nsx-tandem-nsk"$UNAME_RELEASE" exit ;; *:NonStop-UX:*:*) echo mips-compaq-nonstopux exit ;; BS2000:POSIX*:*:*) echo bs2000-siemens-sysv exit ;; DS/*:UNIX_System_V:*:*) echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE" exit ;; *:Plan9:*:*) # "uname -m" is not consistent, so use $cputype instead. 386 # is converted to i386 for consistency with other x86 # operating systems. if test "$cputype" = 386; then UNAME_MACHINE=i386 else UNAME_MACHINE="$cputype" fi echo "$UNAME_MACHINE"-unknown-plan9 exit ;; *:TOPS-10:*:*) echo pdp10-unknown-tops10 exit ;; *:TENEX:*:*) echo pdp10-unknown-tenex exit ;; KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) echo pdp10-dec-tops20 exit ;; XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) echo pdp10-xkl-tops20 exit ;; *:TOPS-20:*:*) echo pdp10-unknown-tops20 exit ;; *:ITS:*:*) echo pdp10-unknown-its exit ;; SEI:*:*:SEIUX) echo mips-sei-seiux"$UNAME_RELEASE" exit ;; *:DragonFly:*:*) echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" exit ;; *:*VMS:*:*) UNAME_MACHINE=`(uname -p) 2>/dev/null` case "$UNAME_MACHINE" in A*) echo alpha-dec-vms ; exit ;; I*) echo ia64-dec-vms ; exit ;; V*) echo vax-dec-vms ; exit ;; esac ;; *:XENIX:*:SysV) echo i386-pc-xenix exit ;; i*86:skyos:*:*) echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`" exit ;; i*86:rdos:*:*) echo "$UNAME_MACHINE"-pc-rdos exit ;; i*86:AROS:*:*) echo "$UNAME_MACHINE"-pc-aros exit ;; x86_64:VMkernel:*:*) echo "$UNAME_MACHINE"-unknown-esx exit ;; amd64:Isilon\ OneFS:*:*) echo x86_64-unknown-onefs exit ;; esac echo "$0: unable to guess system type" >&2 case "$UNAME_MACHINE:$UNAME_SYSTEM" in mips:Linux | mips64:Linux) # If we got here on MIPS GNU/Linux, output extra information. cat >&2 <<EOF NOTE: MIPS GNU/Linux systems require a C compiler to fully recognize the system type. Please install a C compiler and try again. EOF ;; esac cat >&2 <<EOF This script (version $timestamp), has failed to recognize the operating system you are using. If your script is old, overwrite *all* copies of config.guess and config.sub with the latest versions from: https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess and https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub If $0 has already been updated, send the following data and any information you think might be pertinent to config-patches@gnu.org to provide the necessary information to handle your system. config.guess timestamp = $timestamp uname -m = `(uname -m) 2>/dev/null || echo unknown` uname -r = `(uname -r) 2>/dev/null || echo unknown` uname -s = `(uname -s) 2>/dev/null || echo unknown` uname -v = `(uname -v) 2>/dev/null || echo unknown` /usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` /bin/uname -X = `(/bin/uname -X) 2>/dev/null` hostinfo = `(hostinfo) 2>/dev/null` /bin/universe = `(/bin/universe) 2>/dev/null` /usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` /bin/arch = `(/bin/arch) 2>/dev/null` /usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` UNAME_MACHINE = "$UNAME_MACHINE" UNAME_RELEASE = "$UNAME_RELEASE" UNAME_SYSTEM = "$UNAME_SYSTEM" UNAME_VERSION = "$UNAME_VERSION" EOF exit 1 # Local variables: # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/config.sub�����������������������������������������������������������������������������0000755�0001750�0001750�00000107070�13465556606�011677� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#! /bin/sh # Configuration validation subroutine script. # Copyright 1992-2018 Free Software Foundation, Inc. timestamp='2018-05-05' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, see <https://www.gnu.org/licenses/>. # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that # program. This Exception is an additional permission under section 7 # of the GNU General Public License, version 3 ("GPLv3"). # Please send patches to <config-patches@gnu.org>. # # Configuration subroutine to validate and canonicalize a configuration type. # Supply the specified configuration type as an argument. # If it is invalid, we print an error message on stderr and exit with code 1. # Otherwise, we print the canonical config type on stdout and succeed. # You can get the latest version of this script from: # https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub # This file is supposed to be the same for all GNU packages # and recognize all the CPU types, system types and aliases # that are meaningful with *any* GNU software. # Each package is responsible for reporting which valid configurations # it does not support. The user should be able to distinguish # a failure to support a valid configuration from a meaningless # configuration. # The goal of this file is to map all the various variations of a given # machine specification into a single specification in the form: # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM # or in some cases, the newer four-part form: # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM # It is wrong to echo any other type of specification. me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS Canonicalize a configuration name. Options: -h, --help print this help, then exit -t, --time-stamp print date of last modification, then exit -v, --version print version number, then exit Report bugs and patches to <config-patches@gnu.org>." version="\ GNU config.sub ($timestamp) Copyright 1992-2018 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help=" Try \`$me --help' for more information." # Parse command line while test $# -gt 0 ; do case $1 in --time-stamp | --time* | -t ) echo "$timestamp" ; exit ;; --version | -v ) echo "$version" ; exit ;; --help | --h* | -h ) echo "$usage"; exit ;; -- ) # Stop option processing shift; break ;; - ) # Use stdin as input. break ;; -* ) echo "$me: invalid option $1$help" exit 1 ;; *local*) # First pass through any local machine types. echo "$1" exit ;; * ) break ;; esac done case $# in 0) echo "$me: missing argument$help" >&2 exit 1;; 1) ;; *) echo "$me: too many arguments$help" >&2 exit 1;; esac # Spilt fields of configuration type IFS="-" read -r field1 field2 field3 field4 <<EOF $1 EOF # Separate into logical components for further validation case $1 in *-*-*-*) basic_machine=$field1-$field2 os=-$field3-$field4 ;; *-*-*) # Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two # parts maybe_os=$field2-$field3 case $maybe_os in nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc \ | linux-newlib* | linux-musl* | linux-uclibc* | uclinux-uclibc* \ | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \ | netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \ | storm-chaos* | os2-emx* | rtmk-nova*) basic_machine=$field1 os=-$maybe_os ;; android-linux) basic_machine=$field1-unknown os=-linux-android ;; *) basic_machine=$field1-$field2 os=-$field3 ;; esac ;; *-*) basic_machine=$field1 os=-$field2 ;; *) basic_machine=$1 os= ;; esac ### Let's recognize common machines as not being operating systems so ### that things like config.sub decstation-3100 work. We also ### recognize some manufacturers as not being operating systems, so we ### can provide default operating systems below. case $os in -sun*os*) # Prevent following clause from handling this invalid input. ;; -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ -apple | -axis | -knuth | -cray | -microblaze*) os= basic_machine=$1 ;; -bluegene*) os=-cnk ;; -sim | -cisco | -oki | -wec | -winbond) os= basic_machine=$1 ;; -scout) ;; -wrs) os=-vxworks basic_machine=$1 ;; -chorusos*) os=-chorusos basic_machine=$1 ;; -chorusrdb) os=-chorusrdb basic_machine=$1 ;; -hiux*) os=-hiuxwe2 ;; -sco6) os=-sco5v6 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco5) os=-sco3.2v5 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco4) os=-sco3.2v4 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco3.2.[4-9]*) os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco3.2v[4-9]*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco5v6*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -sco*) os=-sco3.2v2 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -udk*) basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -isc) os=-isc2.2 basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -clix*) basic_machine=clipper-intergraph ;; -isc*) basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'` ;; -lynx*178) os=-lynxos178 ;; -lynx*5) os=-lynxos5 ;; -lynx*) os=-lynxos ;; -ptx*) basic_machine=`echo "$1" | sed -e 's/86-.*/86-sequent/'` ;; -psos*) os=-psos ;; -mint | -mint[0-9]*) basic_machine=m68k-atari os=-mint ;; esac # Decode aliases for certain CPU-COMPANY combinations. case $basic_machine in # Recognize the basic CPU types without company name. # Some are omitted here because they have special meanings below. 1750a | 580 \ | a29k \ | aarch64 | aarch64_be \ | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ | am33_2.0 \ | arc | arceb \ | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv6m | armv[78][arm] \ | avr | avr32 \ | ba \ | be32 | be64 \ | bfin \ | c4x | c8051 | clipper | csky \ | d10v | d30v | dlx | dsp16xx \ | e2k | epiphany \ | fido | fr30 | frv | ft32 \ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ | hexagon \ | i370 | i860 | i960 | ia16 | ia64 \ | ip2k | iq2000 \ | k1om \ | le32 | le64 \ | lm32 \ | m32c | m32r | m32rle | m68000 | m68k | m88k \ | maxq | mb | microblaze | microblazeel | mcore | mep | metag \ | mips | mipsbe | mipseb | mipsel | mipsle \ | mips16 \ | mips64 | mips64el \ | mips64octeon | mips64octeonel \ | mips64orion | mips64orionel \ | mips64r5900 | mips64r5900el \ | mips64vr | mips64vrel \ | mips64vr4100 | mips64vr4100el \ | mips64vr4300 | mips64vr4300el \ | mips64vr5000 | mips64vr5000el \ | mips64vr5900 | mips64vr5900el \ | mipsisa32 | mipsisa32el \ | mipsisa32r2 | mipsisa32r2el \ | mipsisa32r6 | mipsisa32r6el \ | mipsisa64 | mipsisa64el \ | mipsisa64r2 | mipsisa64r2el \ | mipsisa64r6 | mipsisa64r6el \ | mipsisa64sb1 | mipsisa64sb1el \ | mipsisa64sr71k | mipsisa64sr71kel \ | mipsr5900 | mipsr5900el \ | mipstx39 | mipstx39el \ | mn10200 | mn10300 \ | moxie \ | mt \ | msp430 \ | nds32 | nds32le | nds32be \ | nfp \ | nios | nios2 | nios2eb | nios2el \ | ns16k | ns32k \ | open8 | or1k | or1knd | or32 \ | pdp10 | pj | pjl \ | powerpc | powerpc64 | powerpc64le | powerpcle \ | pru \ | pyramid \ | riscv32 | riscv64 \ | rl78 | rx \ | score \ | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ | sh64 | sh64le \ | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ | spu \ | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ | ubicom32 \ | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ | visium \ | wasm32 \ | x86 | xc16x | xstormy16 | xtensa \ | z8k | z80) basic_machine=$basic_machine-unknown ;; c54x) basic_machine=tic54x-unknown ;; c55x) basic_machine=tic55x-unknown ;; c6x) basic_machine=tic6x-unknown ;; leon|leon[3-9]) basic_machine=sparc-$basic_machine ;; m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip) basic_machine=$basic_machine-unknown os=-none ;; m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65) ;; m9s12z | m68hcs12z | hcs12z | s12z) basic_machine=s12z-unknown os=-none ;; ms1) basic_machine=mt-unknown ;; strongarm | thumb | xscale) basic_machine=arm-unknown ;; xgate) basic_machine=$basic_machine-unknown os=-none ;; xscaleeb) basic_machine=armeb-unknown ;; xscaleel) basic_machine=armel-unknown ;; # We use `pc' rather than `unknown' # because (1) that's what they normally are, and # (2) the word "unknown" tends to confuse beginning users. i*86 | x86_64) basic_machine=$basic_machine-pc ;; # Object if more than one company name word. *-*-*) echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2 exit 1 ;; # Recognize the basic CPU types with company name. 580-* \ | a29k-* \ | aarch64-* | aarch64_be-* \ | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ | avr-* | avr32-* \ | ba-* \ | be32-* | be64-* \ | bfin-* | bs2000-* \ | c[123]* | c30-* | [cjt]90-* | c4x-* \ | c8051-* | clipper-* | craynv-* | csky-* | cydra-* \ | d10v-* | d30v-* | dlx-* \ | e2k-* | elxsi-* \ | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ | h8300-* | h8500-* \ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ | hexagon-* \ | i*86-* | i860-* | i960-* | ia16-* | ia64-* \ | ip2k-* | iq2000-* \ | k1om-* \ | le32-* | le64-* \ | lm32-* \ | m32c-* | m32r-* | m32rle-* \ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \ | microblaze-* | microblazeel-* \ | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ | mips16-* \ | mips64-* | mips64el-* \ | mips64octeon-* | mips64octeonel-* \ | mips64orion-* | mips64orionel-* \ | mips64r5900-* | mips64r5900el-* \ | mips64vr-* | mips64vrel-* \ | mips64vr4100-* | mips64vr4100el-* \ | mips64vr4300-* | mips64vr4300el-* \ | mips64vr5000-* | mips64vr5000el-* \ | mips64vr5900-* | mips64vr5900el-* \ | mipsisa32-* | mipsisa32el-* \ | mipsisa32r2-* | mipsisa32r2el-* \ | mipsisa32r6-* | mipsisa32r6el-* \ | mipsisa64-* | mipsisa64el-* \ | mipsisa64r2-* | mipsisa64r2el-* \ | mipsisa64r6-* | mipsisa64r6el-* \ | mipsisa64sb1-* | mipsisa64sb1el-* \ | mipsisa64sr71k-* | mipsisa64sr71kel-* \ | mipsr5900-* | mipsr5900el-* \ | mipstx39-* | mipstx39el-* \ | mmix-* \ | mt-* \ | msp430-* \ | nds32-* | nds32le-* | nds32be-* \ | nfp-* \ | nios-* | nios2-* | nios2eb-* | nios2el-* \ | none-* | np1-* | ns16k-* | ns32k-* \ | open8-* \ | or1k*-* \ | orion-* \ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ | pru-* \ | pyramid-* \ | riscv32-* | riscv64-* \ | rl78-* | romp-* | rs6000-* | rx-* \ | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ | sparclite-* \ | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \ | tahoe-* \ | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ | tile*-* \ | tron-* \ | ubicom32-* \ | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ | vax-* \ | visium-* \ | wasm32-* \ | we32k-* \ | x86-* | x86_64-* | xc16x-* | xps100-* \ | xstormy16-* | xtensa*-* \ | ymp-* \ | z8k-* | z80-*) ;; # Recognize the basic CPU types without company name, with glob match. xtensa*) basic_machine=$basic_machine-unknown ;; # Recognize the various machine names and aliases which stand # for a CPU type and a company and sometimes even an OS. 386bsd) basic_machine=i386-pc os=-bsd ;; 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) basic_machine=m68000-att ;; 3b*) basic_machine=we32k-att ;; a29khif) basic_machine=a29k-amd os=-udi ;; abacus) basic_machine=abacus-unknown ;; adobe68k) basic_machine=m68010-adobe os=-scout ;; alliant | fx80) basic_machine=fx80-alliant ;; altos | altos3068) basic_machine=m68k-altos ;; am29k) basic_machine=a29k-none os=-bsd ;; amd64) basic_machine=x86_64-pc ;; amd64-*) basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; amdahl) basic_machine=580-amdahl os=-sysv ;; amiga | amiga-*) basic_machine=m68k-unknown ;; amigaos | amigados) basic_machine=m68k-unknown os=-amigaos ;; amigaunix | amix) basic_machine=m68k-unknown os=-sysv4 ;; apollo68) basic_machine=m68k-apollo os=-sysv ;; apollo68bsd) basic_machine=m68k-apollo os=-bsd ;; aros) basic_machine=i386-pc os=-aros ;; asmjs) basic_machine=asmjs-unknown ;; aux) basic_machine=m68k-apple os=-aux ;; balance) basic_machine=ns32k-sequent os=-dynix ;; blackfin) basic_machine=bfin-unknown os=-linux ;; blackfin-*) basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'` os=-linux ;; bluegene*) basic_machine=powerpc-ibm os=-cnk ;; c54x-*) basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; c55x-*) basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; c6x-*) basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; c90) basic_machine=c90-cray os=-unicos ;; cegcc) basic_machine=arm-unknown os=-cegcc ;; convex-c1) basic_machine=c1-convex os=-bsd ;; convex-c2) basic_machine=c2-convex os=-bsd ;; convex-c32) basic_machine=c32-convex os=-bsd ;; convex-c34) basic_machine=c34-convex os=-bsd ;; convex-c38) basic_machine=c38-convex os=-bsd ;; cray | j90) basic_machine=j90-cray os=-unicos ;; craynv) basic_machine=craynv-cray os=-unicosmp ;; cr16 | cr16-*) basic_machine=cr16-unknown os=-elf ;; crds | unos) basic_machine=m68k-crds ;; crisv32 | crisv32-* | etraxfs*) basic_machine=crisv32-axis ;; cris | cris-* | etrax*) basic_machine=cris-axis ;; crx) basic_machine=crx-unknown os=-elf ;; da30 | da30-*) basic_machine=m68k-da30 ;; decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) basic_machine=mips-dec ;; decsystem10* | dec10*) basic_machine=pdp10-dec os=-tops10 ;; decsystem20* | dec20*) basic_machine=pdp10-dec os=-tops20 ;; delta | 3300 | motorola-3300 | motorola-delta \ | 3300-motorola | delta-motorola) basic_machine=m68k-motorola ;; delta88) basic_machine=m88k-motorola os=-sysv3 ;; dicos) basic_machine=i686-pc os=-dicos ;; djgpp) basic_machine=i586-pc os=-msdosdjgpp ;; dpx20 | dpx20-*) basic_machine=rs6000-bull os=-bosx ;; dpx2*) basic_machine=m68k-bull os=-sysv3 ;; e500v[12]) basic_machine=powerpc-unknown os=$os"spe" ;; e500v[12]-*) basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'` os=$os"spe" ;; ebmon29k) basic_machine=a29k-amd os=-ebmon ;; elxsi) basic_machine=elxsi-elxsi os=-bsd ;; encore | umax | mmax) basic_machine=ns32k-encore ;; es1800 | OSE68k | ose68k | ose | OSE) basic_machine=m68k-ericsson os=-ose ;; fx2800) basic_machine=i860-alliant ;; genix) basic_machine=ns32k-ns ;; gmicro) basic_machine=tron-gmicro os=-sysv ;; go32) basic_machine=i386-pc os=-go32 ;; h3050r* | hiux*) basic_machine=hppa1.1-hitachi os=-hiuxwe2 ;; h8300hms) basic_machine=h8300-hitachi os=-hms ;; h8300xray) basic_machine=h8300-hitachi os=-xray ;; h8500hms) basic_machine=h8500-hitachi os=-hms ;; harris) basic_machine=m88k-harris os=-sysv3 ;; hp300-*) basic_machine=m68k-hp ;; hp300bsd) basic_machine=m68k-hp os=-bsd ;; hp300hpux) basic_machine=m68k-hp os=-hpux ;; hp3k9[0-9][0-9] | hp9[0-9][0-9]) basic_machine=hppa1.0-hp ;; hp9k2[0-9][0-9] | hp9k31[0-9]) basic_machine=m68000-hp ;; hp9k3[2-9][0-9]) basic_machine=m68k-hp ;; hp9k6[0-9][0-9] | hp6[0-9][0-9]) basic_machine=hppa1.0-hp ;; hp9k7[0-79][0-9] | hp7[0-79][0-9]) basic_machine=hppa1.1-hp ;; hp9k78[0-9] | hp78[0-9]) # FIXME: really hppa2.0-hp basic_machine=hppa1.1-hp ;; hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) # FIXME: really hppa2.0-hp basic_machine=hppa1.1-hp ;; hp9k8[0-9][13679] | hp8[0-9][13679]) basic_machine=hppa1.1-hp ;; hp9k8[0-9][0-9] | hp8[0-9][0-9]) basic_machine=hppa1.0-hp ;; hppaosf) basic_machine=hppa1.1-hp os=-osf ;; hppro) basic_machine=hppa1.1-hp os=-proelf ;; i370-ibm* | ibm*) basic_machine=i370-ibm ;; i*86v32) basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` os=-sysv32 ;; i*86v4*) basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` os=-sysv4 ;; i*86v) basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` os=-sysv ;; i*86sol2) basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` os=-solaris2 ;; i386mach) basic_machine=i386-mach os=-mach ;; vsta) basic_machine=i386-unknown os=-vsta ;; iris | iris4d) basic_machine=mips-sgi case $os in -irix*) ;; *) os=-irix4 ;; esac ;; isi68 | isi) basic_machine=m68k-isi os=-sysv ;; leon-*|leon[3-9]-*) basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'` ;; m68knommu) basic_machine=m68k-unknown os=-linux ;; m68knommu-*) basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'` os=-linux ;; magnum | m3230) basic_machine=mips-mips os=-sysv ;; merlin) basic_machine=ns32k-utek os=-sysv ;; microblaze*) basic_machine=microblaze-xilinx ;; mingw64) basic_machine=x86_64-pc os=-mingw64 ;; mingw32) basic_machine=i686-pc os=-mingw32 ;; mingw32ce) basic_machine=arm-unknown os=-mingw32ce ;; miniframe) basic_machine=m68000-convergent ;; *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) basic_machine=m68k-atari os=-mint ;; mips3*-*) basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'` ;; mips3*) basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown ;; monitor) basic_machine=m68k-rom68k os=-coff ;; morphos) basic_machine=powerpc-unknown os=-morphos ;; moxiebox) basic_machine=moxie-unknown os=-moxiebox ;; msdos) basic_machine=i386-pc os=-msdos ;; ms1-*) basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'` ;; msys) basic_machine=i686-pc os=-msys ;; mvs) basic_machine=i370-ibm os=-mvs ;; nacl) basic_machine=le32-unknown os=-nacl ;; ncr3000) basic_machine=i486-ncr os=-sysv4 ;; netbsd386) basic_machine=i386-unknown os=-netbsd ;; netwinder) basic_machine=armv4l-rebel os=-linux ;; news | news700 | news800 | news900) basic_machine=m68k-sony os=-newsos ;; news1000) basic_machine=m68030-sony os=-newsos ;; news-3600 | risc-news) basic_machine=mips-sony os=-newsos ;; necv70) basic_machine=v70-nec os=-sysv ;; next | m*-next) basic_machine=m68k-next case $os in -nextstep* ) ;; -ns2*) os=-nextstep2 ;; *) os=-nextstep3 ;; esac ;; nh3000) basic_machine=m68k-harris os=-cxux ;; nh[45]000) basic_machine=m88k-harris os=-cxux ;; nindy960) basic_machine=i960-intel os=-nindy ;; mon960) basic_machine=i960-intel os=-mon960 ;; nonstopux) basic_machine=mips-compaq os=-nonstopux ;; np1) basic_machine=np1-gould ;; neo-tandem) basic_machine=neo-tandem ;; nse-tandem) basic_machine=nse-tandem ;; nsr-tandem) basic_machine=nsr-tandem ;; nsv-tandem) basic_machine=nsv-tandem ;; nsx-tandem) basic_machine=nsx-tandem ;; op50n-* | op60c-*) basic_machine=hppa1.1-oki os=-proelf ;; openrisc | openrisc-*) basic_machine=or32-unknown ;; os400) basic_machine=powerpc-ibm os=-os400 ;; OSE68000 | ose68000) basic_machine=m68000-ericsson os=-ose ;; os68k) basic_machine=m68k-none os=-os68k ;; pa-hitachi) basic_machine=hppa1.1-hitachi os=-hiuxwe2 ;; paragon) basic_machine=i860-intel os=-osf ;; parisc) basic_machine=hppa-unknown os=-linux ;; parisc-*) basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'` os=-linux ;; pbd) basic_machine=sparc-tti ;; pbb) basic_machine=m68k-tti ;; pc532 | pc532-*) basic_machine=ns32k-pc532 ;; pc98) basic_machine=i386-pc ;; pc98-*) basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pentium | p5 | k5 | k6 | nexgen | viac3) basic_machine=i586-pc ;; pentiumpro | p6 | 6x86 | athlon | athlon_*) basic_machine=i686-pc ;; pentiumii | pentium2 | pentiumiii | pentium3) basic_machine=i686-pc ;; pentium4) basic_machine=i786-pc ;; pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pentiumpro-* | p6-* | 6x86-* | athlon-*) basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pentium4-*) basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; pn) basic_machine=pn-gould ;; power) basic_machine=power-ibm ;; ppc | ppcbe) basic_machine=powerpc-unknown ;; ppc-* | ppcbe-*) basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; ppcle | powerpclittle) basic_machine=powerpcle-unknown ;; ppcle-* | powerpclittle-*) basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; ppc64) basic_machine=powerpc64-unknown ;; ppc64-*) basic_machine=powerpc64-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; ppc64le | powerpc64little) basic_machine=powerpc64le-unknown ;; ppc64le-* | powerpc64little-*) basic_machine=powerpc64le-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; ps2) basic_machine=i386-ibm ;; pw32) basic_machine=i586-unknown os=-pw32 ;; rdos | rdos64) basic_machine=x86_64-pc os=-rdos ;; rdos32) basic_machine=i386-pc os=-rdos ;; rom68k) basic_machine=m68k-rom68k os=-coff ;; rm[46]00) basic_machine=mips-siemens ;; rtpc | rtpc-*) basic_machine=romp-ibm ;; s390 | s390-*) basic_machine=s390-ibm ;; s390x | s390x-*) basic_machine=s390x-ibm ;; sa29200) basic_machine=a29k-amd os=-udi ;; sb1) basic_machine=mipsisa64sb1-unknown ;; sb1el) basic_machine=mipsisa64sb1el-unknown ;; sde) basic_machine=mipsisa32-sde os=-elf ;; sei) basic_machine=mips-sei os=-seiux ;; sequent) basic_machine=i386-sequent ;; sh5el) basic_machine=sh5le-unknown ;; simso-wrs) basic_machine=sparclite-wrs os=-vxworks ;; sps7) basic_machine=m68k-bull os=-sysv2 ;; spur) basic_machine=spur-unknown ;; st2000) basic_machine=m68k-tandem ;; stratus) basic_machine=i860-stratus os=-sysv4 ;; strongarm-* | thumb-*) basic_machine=arm-`echo "$basic_machine" | sed 's/^[^-]*-//'` ;; sun2) basic_machine=m68000-sun ;; sun2os3) basic_machine=m68000-sun os=-sunos3 ;; sun2os4) basic_machine=m68000-sun os=-sunos4 ;; sun3os3) basic_machine=m68k-sun os=-sunos3 ;; sun3os4) basic_machine=m68k-sun os=-sunos4 ;; sun4os3) basic_machine=sparc-sun os=-sunos3 ;; sun4os4) basic_machine=sparc-sun os=-sunos4 ;; sun4sol2) basic_machine=sparc-sun os=-solaris2 ;; sun3 | sun3-*) basic_machine=m68k-sun ;; sun4) basic_machine=sparc-sun ;; sun386 | sun386i | roadrunner) basic_machine=i386-sun ;; sv1) basic_machine=sv1-cray os=-unicos ;; symmetry) basic_machine=i386-sequent os=-dynix ;; t3e) basic_machine=alphaev5-cray os=-unicos ;; t90) basic_machine=t90-cray os=-unicos ;; tile*) basic_machine=$basic_machine-unknown os=-linux-gnu ;; tx39) basic_machine=mipstx39-unknown ;; tx39el) basic_machine=mipstx39el-unknown ;; toad1) basic_machine=pdp10-xkl os=-tops20 ;; tower | tower-32) basic_machine=m68k-ncr ;; tpf) basic_machine=s390x-ibm os=-tpf ;; udi29k) basic_machine=a29k-amd os=-udi ;; ultra3) basic_machine=a29k-nyu os=-sym1 ;; v810 | necv810) basic_machine=v810-nec os=-none ;; vaxv) basic_machine=vax-dec os=-sysv ;; vms) basic_machine=vax-dec os=-vms ;; vpp*|vx|vx-*) basic_machine=f301-fujitsu ;; vxworks960) basic_machine=i960-wrs os=-vxworks ;; vxworks68) basic_machine=m68k-wrs os=-vxworks ;; vxworks29k) basic_machine=a29k-wrs os=-vxworks ;; w65*) basic_machine=w65-wdc os=-none ;; w89k-*) basic_machine=hppa1.1-winbond os=-proelf ;; x64) basic_machine=x86_64-pc ;; xbox) basic_machine=i686-pc os=-mingw32 ;; xps | xps100) basic_machine=xps100-honeywell ;; xscale-* | xscalee[bl]-*) basic_machine=`echo "$basic_machine" | sed 's/^xscale/arm/'` ;; ymp) basic_machine=ymp-cray os=-unicos ;; none) basic_machine=none-none os=-none ;; # Here we handle the default manufacturer of certain CPU types. It is in # some cases the only manufacturer, in others, it is the most popular. w89k) basic_machine=hppa1.1-winbond ;; op50n) basic_machine=hppa1.1-oki ;; op60c) basic_machine=hppa1.1-oki ;; romp) basic_machine=romp-ibm ;; mmix) basic_machine=mmix-knuth ;; rs6000) basic_machine=rs6000-ibm ;; vax) basic_machine=vax-dec ;; pdp11) basic_machine=pdp11-dec ;; we32k) basic_machine=we32k-att ;; sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele) basic_machine=sh-unknown ;; cydra) basic_machine=cydra-cydrome ;; orion) basic_machine=orion-highlevel ;; orion105) basic_machine=clipper-highlevel ;; mac | mpw | mac-mpw) basic_machine=m68k-apple ;; pmac | pmac-mpw) basic_machine=powerpc-apple ;; *-unknown) # Make sure to match an already-canonicalized machine name. ;; *) echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2 exit 1 ;; esac # Here we canonicalize certain aliases for manufacturers. case $basic_machine in *-digital*) basic_machine=`echo "$basic_machine" | sed 's/digital.*/dec/'` ;; *-commodore*) basic_machine=`echo "$basic_machine" | sed 's/commodore.*/cbm/'` ;; *) ;; esac # Decode manufacturer-specific aliases for certain operating systems. if [ x$os != x ] then case $os in # First match some system type aliases that might get confused # with valid system types. # -solaris* is a basic system type, with this one exception. -auroraux) os=-auroraux ;; -solaris1 | -solaris1.*) os=`echo $os | sed -e 's|solaris1|sunos4|'` ;; -solaris) os=-solaris2 ;; -unixware*) os=-sysv4.2uw ;; -gnu/linux*) os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'` ;; # es1800 is here to avoid being matched by es* (a different OS) -es1800*) os=-ose ;; # Now accept the basic system types. # The portable systems comes first. # Each alternative MUST end in a * to match a version number. # -sysv* is not here because it comes later, after sysvr4. -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \ | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\ | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \ | -sym* | -kopensolaris* | -plan9* \ | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \ | -aos* | -aros* | -cloudabi* | -sortix* \ | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \ | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \ | -hiux* | -knetbsd* | -mirbsd* | -netbsd* \ | -bitrig* | -openbsd* | -solidbsd* | -libertybsd* \ | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \ | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \ | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* | -hcos* \ | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \ | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \ | -linux-newlib* | -linux-musl* | -linux-uclibc* \ | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \ | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* \ | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \ | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ | -morphos* | -superux* | -rtmk* | -windiss* \ | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \ | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \ | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme* \ | -midnightbsd*) # Remember, each alternative MUST END IN *, to match a version number. ;; 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We pick the logical manufacturer. vendor=unknown case $basic_machine in *-unknown) case $os in -riscix*) vendor=acorn ;; -sunos*) vendor=sun ;; -cnk*|-aix*) vendor=ibm ;; -beos*) vendor=be ;; -hpux*) vendor=hp ;; -mpeix*) vendor=hp ;; -hiux*) vendor=hitachi ;; -unos*) vendor=crds ;; -dgux*) vendor=dg ;; -luna*) vendor=omron ;; -genix*) vendor=ns ;; -mvs* | -opened*) vendor=ibm ;; -os400*) vendor=ibm ;; -ptx*) vendor=sequent ;; -tpf*) vendor=ibm ;; -vxsim* | -vxworks* | -windiss*) vendor=wrs ;; -aux*) vendor=apple ;; -hms*) vendor=hitachi ;; -mpw* | -macos*) vendor=apple ;; -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) vendor=atari ;; -vos*) vendor=stratus ;; esac basic_machine=`echo "$basic_machine" | sed "s/unknown/$vendor/"` ;; esac echo "$basic_machine$os" exit # Local variables: # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/depcomp��������������������������������������������������������������������������������0000755�0001750�0001750�00000056020�13465556606�011267� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#! /bin/sh # depcomp - compile a program generating dependencies as side-effects scriptversion=2018-03-07.03; # UTC # Copyright (C) 1999-2018 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see <https://www.gnu.org/licenses/>. # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>. case $1 in '') echo "$0: No command. Try '$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by 'PROGRAMS ARGS'. object Object file output by 'PROGRAMS ARGS'. DEPDIR directory where to store dependencies. depfile Dependency file to output. tmpdepfile Temporary file to use when outputting dependencies. libtool Whether libtool is used (yes/no). Report bugs to <bug-automake@gnu.org>. EOF exit $? ;; -v | --v*) echo "depcomp $scriptversion" exit $? ;; esac # Get the directory component of the given path, and save it in the # global variables '$dir'. Note that this directory component will # be either empty or ending with a '/' character. This is deliberate. set_dir_from () { case $1 in */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; *) dir=;; esac } # Get the suffix-stripped basename of the given path, and save it the # global variable '$base'. set_base_from () { base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` } # If no dependency file was actually created by the compiler invocation, # we still have to create a dummy depfile, to avoid errors with the # Makefile "include basename.Plo" scheme. make_dummy_depfile () { echo "#dummy" > "$depfile" } # Factor out some common post-processing of the generated depfile. # Requires the auxiliary global variable '$tmpdepfile' to be set. aix_post_process_depfile () { # If the compiler actually managed to produce a dependency file, # post-process it. if test -f "$tmpdepfile"; then # Each line is of the form 'foo.o: dependency.h'. # Do two passes, one to just change these to # $object: dependency.h # and one to simply output # dependency.h: # which is needed to avoid the deleted-header problem. { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" } > "$depfile" rm -f "$tmpdepfile" else make_dummy_depfile fi } # A tabulation character. tab=' ' # A newline character. nl=' ' # Character ranges might be problematic outside the C locale. # These definitions help. upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ lower=abcdefghijklmnopqrstuvwxyz digits=0123456789 alpha=${upper}${lower} if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 fi # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. depfile=${depfile-`echo "$object" | sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} rm -f "$tmpdepfile" # Avoid interferences from the environment. gccflag= dashmflag= # Some modes work just like other modes, but use different flags. We # parameterize here, but still list the modes in the big case below, # to make depend.m4 easier to write. Note that we *cannot* use a case # here, because this file can only contain one case statement. if test "$depmode" = hp; then # HP compiler uses -M and no extra arg. gccflag=-M depmode=gcc fi if test "$depmode" = dashXmstdout; then # This is just like dashmstdout with a different argument. dashmflag=-xM depmode=dashmstdout fi cygpath_u="cygpath -u -f -" if test "$depmode" = msvcmsys; then # This is just like msvisualcpp but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvisualcpp fi if test "$depmode" = msvc7msys; then # This is just like msvc7 but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvc7 fi if test "$depmode" = xlc; then # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. gccflag=-qmakedep=gcc,-MF depmode=gcc fi case "$depmode" in gcc3) ## gcc 3 implements dependency tracking that does exactly what ## we want. Yay! Note: for some reason libtool 1.4 doesn't like ## it if -MD -MP comes after the -MF stuff. Hmm. ## Unfortunately, FreeBSD c89 acceptance of flags depends upon ## the command line argument order; so add the flags where they ## appear in depend2.am. Note that the slowdown incurred here ## affects only configure: in makefiles, %FASTDEP% shortcuts this. for arg do case $arg in -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; *) set fnord "$@" "$arg" ;; esac shift # fnord shift # $arg done "$@" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi mv "$tmpdepfile" "$depfile" ;; gcc) ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. ## (see the conditional assignment to $gccflag above). ## There are various ways to get dependency output from gcc. Here's ## why we pick this rather obscure method: ## - Don't want to use -MD because we'd like the dependencies to end ## up in a subdir. Having to rename by hand is ugly. ## (We might end up doing this anyway to support other compilers.) ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like ## -MM, not -M (despite what the docs say). Also, it might not be ## supported by the other compilers which use the 'gcc' depmode. ## - Using -M directly means running the compiler twice (even worse ## than renaming). if test -z "$gccflag"; then gccflag=-MD, fi "$@" -Wp,"$gccflag$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" echo "$object : \\" > "$depfile" # The second -e expression handles DOS-style file names with drive # letters. sed -e 's/^[^:]*: / /' \ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" ## This next piece of magic avoids the "deleted header file" problem. ## The problem is that when a header file which appears in a .P file ## is deleted, the dependency causes make to die (because there is ## typically no way to rebuild the header). We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ## this for us directly. ## Some versions of gcc put a space before the ':'. On the theory ## that the space means something, we add a space to the output as ## well. hp depmode also adds that space, but also prefixes the VPATH ## to the object. Take care to not repeat it in the output. ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; sgi) if test "$libtool" = yes; then "$@" "-Wp,-MDupdate,$tmpdepfile" else "$@" -MDupdate "$tmpdepfile" fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files echo "$object : \\" > "$depfile" # Clip off the initial element (the dependent). Don't try to be # clever and replace this with sed code, as IRIX sed won't handle # lines with more than a fixed number of characters (4096 in # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; # the IRIX cc adds comments like '#:fec' to the end of the # dependency line. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ | tr "$nl" ' ' >> "$depfile" echo >> "$depfile" # The second pass generates a dummy entry for each header file. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ >> "$depfile" else make_dummy_depfile fi rm -f "$tmpdepfile" ;; xlc) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; aix) # The C for AIX Compiler uses -M and outputs the dependencies # in a .u file. In older versions, this file always lives in the # current directory. Also, the AIX compiler puts '$object:' at the # start of each line; $object doesn't have directory information. # Version 6 uses the directory in both cases. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then tmpdepfile1=$dir$base.u tmpdepfile2=$base.u tmpdepfile3=$dir.libs/$base.u "$@" -Wc,-M else tmpdepfile1=$dir$base.u tmpdepfile2=$dir$base.u tmpdepfile3=$dir$base.u "$@" -M fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" exit $stat fi for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" do test -f "$tmpdepfile" && break done aix_post_process_depfile ;; tcc) # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 # FIXME: That version still under development at the moment of writing. # Make that this statement remains true also for stable, released # versions. # It will wrap lines (doesn't matter whether long or short) with a # trailing '\', as in: # # foo.o : \ # foo.c \ # foo.h \ # # It will put a trailing '\' even on the last line, and will use leading # spaces rather than leading tabs (at least since its commit 0394caf7 # "Emit spaces for -MD"). "$@" -MD -MF "$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. # We have to change lines of the first kind to '$object: \'. sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" # And for each line of the second kind, we have to emit a 'dep.h:' # dummy dependency, to avoid the deleted-header problem. sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" rm -f "$tmpdepfile" ;; ## The order of this option in the case statement is important, since the ## shell code in configure will try each of these formats in the order ## listed in this file. A plain '-MD' option would be understood by many ## compilers, so we must ensure this comes after the gcc and icc options. pgcc) # Portland's C compiler understands '-MD'. # Will always output deps to 'file.d' where file is the root name of the # source file under compilation, even if file resides in a subdirectory. # The object file name does not affect the name of the '.d' file. # pgcc 10.2 will output # foo.o: sub/foo.c sub/foo.h # and will wrap long lines using '\' : # foo.o: sub/foo.c ... \ # sub/foo.h ... \ # ... set_dir_from "$object" # Use the source, not the object, to determine the base name, since # that's sadly what pgcc will do too. set_base_from "$source" tmpdepfile=$base.d # For projects that build the same source file twice into different object # files, the pgcc approach of using the *source* file root name can cause # problems in parallel builds. Use a locking strategy to avoid stomping on # the same $tmpdepfile. lockdir=$base.d-lock trap " echo '$0: caught signal, cleaning up...' >&2 rmdir '$lockdir' exit 1 " 1 2 13 15 numtries=100 i=$numtries while test $i -gt 0; do # mkdir is a portable test-and-set. if mkdir "$lockdir" 2>/dev/null; then # This process acquired the lock. "$@" -MD stat=$? # Release the lock. rmdir "$lockdir" break else # If the lock is being held by a different process, wait # until the winning process is done or we timeout. while test -d "$lockdir" && test $i -gt 0; do sleep 1 i=`expr $i - 1` done fi i=`expr $i - 1` done trap - 1 2 13 15 if test $i -le 0; then echo "$0: failed to acquire lock after $numtries attempts" >&2 echo "$0: check lockdir '$lockdir'" >&2 exit 1 fi if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" # Each line is of the form `foo.o: dependent.h', # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. # Do two passes, one to just change these to # `$object: dependent.h' and one to simply `dependent.h:'. sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" # Some versions of the HPUX 10.20 sed can't process this invocation # correctly. Breaking it into two sed invocations is a workaround. sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp2) # The "hp" stanza above does not work with aCC (C++) and HP's ia64 # compilers, which have integrated preprocessors. 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IN NO EVENT SHALL THE # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # # Except as contained in this notice, the name of the X Consortium shall not # be used in advertising or otherwise to promote the sale, use or other deal- # ings in this Software without prior written authorization from the X Consor- # tium. # # # FSF changes to this file are in the public domain. # # Calling this script install-sh is preferred over install.sh, to prevent # 'make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. tab=' ' nl=' ' IFS=" $tab$nl" # Set DOITPROG to "echo" to test this script. doit=${DOITPROG-} doit_exec=${doit:-exec} # Put in absolute file names if you don't have them in your path; # or use environment vars. chgrpprog=${CHGRPPROG-chgrp} chmodprog=${CHMODPROG-chmod} chownprog=${CHOWNPROG-chown} cmpprog=${CMPPROG-cmp} cpprog=${CPPROG-cp} mkdirprog=${MKDIRPROG-mkdir} mvprog=${MVPROG-mv} rmprog=${RMPROG-rm} stripprog=${STRIPPROG-strip} posix_mkdir= # Desired mode of installed file. mode=0755 chgrpcmd= chmodcmd=$chmodprog chowncmd= mvcmd=$mvprog rmcmd="$rmprog -f" stripcmd= src= dst= dir_arg= dst_arg= copy_on_change=false is_target_a_directory=possibly usage="\ Usage: $0 [OPTION]... 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(umask $mkdir_umask && eval "\$doit_exec \$mkdirprog $prefixes") || test -d "$dstdir" || exit 1 obsolete_mkdir_used=true fi fi fi if test -n "$dir_arg"; then { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 else # Make a couple of temp file names in the proper directory. dsttmp=${dstdirslash}_inst.$$_ rmtmp=${dstdirslash}_rm.$$_ # Trap to clean up those temp files at exit. trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 # Copy the file name to the temp name. (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && # and set any options; do chmod last to preserve setuid bits. # # If any of these fail, we abort the whole thing. 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In this case, the final cleanup might fail but the new # file should still install successfully. { test ! -f "$dst" || $doit $rmcmd -f "$dst" 2>/dev/null || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } } || { echo "$0: cannot unlink or rename $dst" >&2 (exit 1); exit 1 } } && # Now rename the file to the real destination. $doit $mvcmd "$dsttmp" "$dst" } fi || exit 1 trap '' 0 fi done # Local variables: # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC0" # time-stamp-end: "; # UTC" # End: ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ltmain.sh������������������������������������������������������������������������������0000644�0001750�0001750�00001171067�13465556603�011541� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#! /bin/sh ## DO NOT EDIT - This file generated from ./build-aux/ltmain.in ## by inline-source v2014-01-03.01 # libtool (GNU libtool) 2.4.6 # Provide generalized library-building support services. # Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996 # Copyright (C) 1996-2015 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # GNU Libtool is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # As a special exception to the GNU General Public License, # if you distribute this file as part of a program or library that # is built using GNU Libtool, you may include this file under the # same distribution terms that you use for the rest of that program. # # GNU Libtool is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. PROGRAM=libtool PACKAGE=libtool VERSION=2.4.6 package_revision=2.4.6 ## ------ ## ## Usage. ## ## ------ ## # Run './libtool --help' for help with using this script from the # command line. ## ------------------------------- ## ## User overridable command paths. ## ## ------------------------------- ## # After configure completes, it has a better idea of some of the # shell tools we need than the defaults used by the functions shared # with bootstrap, so set those here where they can still be over- # ridden by the user, but otherwise take precedence. : ${AUTOCONF="autoconf"} : ${AUTOMAKE="automake"} ## -------------------------- ## ## Source external libraries. ## ## -------------------------- ## # Much of our low-level functionality needs to be sourced from external # libraries, which are installed to $pkgauxdir. # Set a version string for this script. scriptversion=2015-01-20.17; # UTC # General shell script boiler plate, and helper functions. # Written by Gary V. Vaughan, 2004 # Copyright (C) 2004-2015 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # As a special exception to the GNU General Public License, if you distribute # this file as part of a program or library that is built using GNU Libtool, # you may include this file under the same distribution terms that you use # for the rest of that program. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # Please report bugs or propose patches to gary@gnu.org. ## ------ ## ## Usage. ## ## ------ ## # Evaluate this file near the top of your script to gain access to # the functions and variables defined here: # # . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh # # If you need to override any of the default environment variable # settings, do that before evaluating this file. ## -------------------- ## ## Shell normalisation. ## ## -------------------- ## # Some shells need a little help to be as Bourne compatible as possible. # Before doing anything else, make sure all that help has been provided! DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. Disable this feature. alias -g '${1+"$@"}'='"$@"' setopt NO_GLOB_SUBST else case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac fi # NLS nuisances: We save the old values in case they are required later. _G_user_locale= _G_safe_locale= for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES do eval "if test set = \"\${$_G_var+set}\"; then save_$_G_var=\$$_G_var $_G_var=C export $_G_var _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\" _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\" fi" done # CDPATH. (unset CDPATH) >/dev/null 2>&1 && unset CDPATH # Make sure IFS has a sensible default sp=' ' nl=' ' IFS="$sp $nl" # There are apparently some retarded systems that use ';' as a PATH separator! if test "${PATH_SEPARATOR+set}" != set; then PATH_SEPARATOR=: (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || PATH_SEPARATOR=';' } fi ## ------------------------- ## ## Locate command utilities. ## ## ------------------------- ## # func_executable_p FILE # ---------------------- # Check that FILE is an executable regular file. func_executable_p () { test -f "$1" && test -x "$1" } # func_path_progs PROGS_LIST CHECK_FUNC [PATH] # -------------------------------------------- # Search for either a program that responds to --version with output # containing "GNU", or else returned by CHECK_FUNC otherwise, by # trying all the directories in PATH with each of the elements of # PROGS_LIST. # # CHECK_FUNC should accept the path to a candidate program, and # set $func_check_prog_result if it truncates its output less than # $_G_path_prog_max characters. func_path_progs () { _G_progs_list=$1 _G_check_func=$2 _G_PATH=${3-"$PATH"} _G_path_prog_max=0 _G_path_prog_found=false _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:} for _G_dir in $_G_PATH; do IFS=$_G_save_IFS test -z "$_G_dir" && _G_dir=. for _G_prog_name in $_G_progs_list; do for _exeext in '' .EXE; do _G_path_prog=$_G_dir/$_G_prog_name$_exeext func_executable_p "$_G_path_prog" || continue case `"$_G_path_prog" --version 2>&1` in *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;; *) $_G_check_func $_G_path_prog func_path_progs_result=$func_check_prog_result ;; esac $_G_path_prog_found && break 3 done done done IFS=$_G_save_IFS test -z "$func_path_progs_result" && { echo "no acceptable sed could be found in \$PATH" >&2 exit 1 } } # We want to be able to use the functions in this file before configure # has figured out where the best binaries are kept, which means we have # to search for them ourselves - except when the results are already set # where we skip the searches. # Unless the user overrides by setting SED, search the path for either GNU # sed, or the sed that truncates its output the least. test -z "$SED" && { _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/ for _G_i in 1 2 3 4 5 6 7; do _G_sed_script=$_G_sed_script$nl$_G_sed_script done echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed _G_sed_script= func_check_prog_sed () { _G_path_prog=$1 _G_count=0 printf 0123456789 >conftest.in while : do cat conftest.in conftest.in >conftest.tmp mv conftest.tmp conftest.in cp conftest.in conftest.nl echo '' >> conftest.nl "$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break diff conftest.out conftest.nl >/dev/null 2>&1 || break _G_count=`expr $_G_count + 1` if test "$_G_count" -gt "$_G_path_prog_max"; then # Best one so far, save it but keep looking for a better one func_check_prog_result=$_G_path_prog _G_path_prog_max=$_G_count fi # 10*(2^10) chars as input seems more than enough test 10 -lt "$_G_count" && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out } func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin rm -f conftest.sed SED=$func_path_progs_result } # Unless the user overrides by setting GREP, search the path for either GNU # grep, or the grep that truncates its output the least. test -z "$GREP" && { func_check_prog_grep () { _G_path_prog=$1 _G_count=0 _G_path_prog_max=0 printf 0123456789 >conftest.in while : do cat conftest.in conftest.in >conftest.tmp mv conftest.tmp conftest.in cp conftest.in conftest.nl echo 'GREP' >> conftest.nl "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break diff conftest.out conftest.nl >/dev/null 2>&1 || break _G_count=`expr $_G_count + 1` if test "$_G_count" -gt "$_G_path_prog_max"; then # Best one so far, save it but keep looking for a better one func_check_prog_result=$_G_path_prog _G_path_prog_max=$_G_count fi # 10*(2^10) chars as input seems more than enough test 10 -lt "$_G_count" && break done rm -f conftest.in conftest.tmp conftest.nl conftest.out } func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin GREP=$func_path_progs_result } ## ------------------------------- ## ## User overridable command paths. ## ## ------------------------------- ## # All uppercase variable names are used for environment variables. These # variables can be overridden by the user before calling a script that # uses them if a suitable command of that name is not already available # in the command search PATH. : ${CP="cp -f"} : ${ECHO="printf %s\n"} : ${EGREP="$GREP -E"} : ${FGREP="$GREP -F"} : ${LN_S="ln -s"} : ${MAKE="make"} : ${MKDIR="mkdir"} : ${MV="mv -f"} : ${RM="rm -f"} : ${SHELL="${CONFIG_SHELL-/bin/sh}"} ## -------------------- ## ## Useful sed snippets. ## ## -------------------- ## sed_dirname='s|/[^/]*$||' sed_basename='s|^.*/||' # Sed substitution that helps us do robust quoting. It backslashifies # metacharacters that are still active within double-quoted strings. sed_quote_subst='s|\([`"$\\]\)|\\\1|g' # Same as above, but do not quote variable references. sed_double_quote_subst='s/\(["`\\]\)/\\\1/g' # Sed substitution that turns a string into a regex matching for the # string literally. sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g' # Sed substitution that converts a w32 file name or path # that contains forward slashes, into one that contains # (escaped) backslashes. A very naive implementation. sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g' # Re-'\' parameter expansions in output of sed_double_quote_subst that # were '\'-ed in input to the same. If an odd number of '\' preceded a # '$' in input to sed_double_quote_subst, that '$' was protected from # expansion. Since each input '\' is now two '\'s, look for any number # of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'. _G_bs='\\' _G_bs2='\\\\' _G_bs4='\\\\\\\\' _G_dollar='\$' sed_double_backslash="\ s/$_G_bs4/&\\ /g s/^$_G_bs2$_G_dollar/$_G_bs&/ s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g s/\n//g" ## ----------------- ## ## Global variables. ## ## ----------------- ## # Except for the global variables explicitly listed below, the following # functions in the '^func_' namespace, and the '^require_' namespace # variables initialised in the 'Resource management' section, sourcing # this file will not pollute your global namespace with anything # else. There's no portable way to scope variables in Bourne shell # though, so actually running these functions will sometimes place # results into a variable named after the function, and often use # temporary variables in the '^_G_' namespace. If you are careful to # avoid using those namespaces casually in your sourcing script, things # should continue to work as you expect. And, of course, you can freely # overwrite any of the functions or variables defined here before # calling anything to customize them. EXIT_SUCCESS=0 EXIT_FAILURE=1 EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing. EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake. # Allow overriding, eg assuming that you follow the convention of # putting '$debug_cmd' at the start of all your functions, you can get # bash to show function call trace with: # # debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name debug_cmd=${debug_cmd-":"} exit_cmd=: # By convention, finish your script with: # # exit $exit_status # # so that you can set exit_status to non-zero if you want to indicate # something went wrong during execution without actually bailing out at # the point of failure. exit_status=$EXIT_SUCCESS # Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh # is ksh but when the shell is invoked as "sh" and the current value of # the _XPG environment variable is not equal to 1 (one), the special # positional parameter $0, within a function call, is the name of the # function. progpath=$0 # The name of this program. progname=`$ECHO "$progpath" |$SED "$sed_basename"` # Make sure we have an absolute progpath for reexecution: case $progpath in [\\/]*|[A-Za-z]:\\*) ;; *[\\/]*) progdir=`$ECHO "$progpath" |$SED "$sed_dirname"` progdir=`cd "$progdir" && pwd` progpath=$progdir/$progname ;; *) _G_IFS=$IFS IFS=${PATH_SEPARATOR-:} for progdir in $PATH; do IFS=$_G_IFS test -x "$progdir/$progname" && break done IFS=$_G_IFS test -n "$progdir" || progdir=`pwd` progpath=$progdir/$progname ;; esac ## ----------------- ## ## Standard options. ## ## ----------------- ## # The following options affect the operation of the functions defined # below, and should be set appropriately depending on run-time para- # meters passed on the command line. opt_dry_run=false opt_quiet=false opt_verbose=false # Categories 'all' and 'none' are always available. Append any others # you will pass as the first argument to func_warning from your own # code. warning_categories= # By default, display warnings according to 'opt_warning_types'. Set # 'warning_func' to ':' to elide all warnings, or func_fatal_error to # treat the next displayed warning as a fatal error. warning_func=func_warn_and_continue # Set to 'all' to display all warnings, 'none' to suppress all # warnings, or a space delimited list of some subset of # 'warning_categories' to display only the listed warnings. opt_warning_types=all ## -------------------- ## ## Resource management. ## ## -------------------- ## # This section contains definitions for functions that each ensure a # particular resource (a file, or a non-empty configuration variable for # example) is available, and if appropriate to extract default values # from pertinent package files. Call them using their associated # 'require_*' variable to ensure that they are executed, at most, once. # # It's entirely deliberate that calling these functions can set # variables that don't obey the namespace limitations obeyed by the rest # of this file, in order that that they be as useful as possible to # callers. # require_term_colors # ------------------- # Allow display of bold text on terminals that support it. require_term_colors=func_require_term_colors func_require_term_colors () { $debug_cmd test -t 1 && { # COLORTERM and USE_ANSI_COLORS environment variables take # precedence, because most terminfo databases neglect to describe # whether color sequences are supported. test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"} if test 1 = "$USE_ANSI_COLORS"; then # Standard ANSI escape sequences tc_reset='' tc_bold=''; tc_standout='' tc_red=''; tc_green='' tc_blue=''; tc_cyan='' else # Otherwise trust the terminfo database after all. test -n "`tput sgr0 2>/dev/null`" && { tc_reset=`tput sgr0` test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold` tc_standout=$tc_bold test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso` test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1` test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2` test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4` test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5` } fi } require_term_colors=: } ## ----------------- ## ## Function library. ## ## ----------------- ## # This section contains a variety of useful functions to call in your # scripts. Take note of the portable wrappers for features provided by # some modern shells, which will fall back to slower equivalents on # less featureful shells. # func_append VAR VALUE # --------------------- # Append VALUE onto the existing contents of VAR. # We should try to minimise forks, especially on Windows where they are # unreasonably slow, so skip the feature probes when bash or zsh are # being used: if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then : ${_G_HAVE_ARITH_OP="yes"} : ${_G_HAVE_XSI_OPS="yes"} # The += operator was introduced in bash 3.1 case $BASH_VERSION in [12].* | 3.0 | 3.0*) ;; *) : ${_G_HAVE_PLUSEQ_OP="yes"} ;; esac fi # _G_HAVE_PLUSEQ_OP # Can be empty, in which case the shell is probed, "yes" if += is # useable or anything else if it does not work. test -z "$_G_HAVE_PLUSEQ_OP" \ && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \ && _G_HAVE_PLUSEQ_OP=yes if test yes = "$_G_HAVE_PLUSEQ_OP" then # This is an XSI compatible shell, allowing a faster implementation... eval 'func_append () { $debug_cmd eval "$1+=\$2" }' else # ...otherwise fall back to using expr, which is often a shell builtin. func_append () { $debug_cmd eval "$1=\$$1\$2" } fi # func_append_quoted VAR VALUE # ---------------------------- # Quote VALUE and append to the end of shell variable VAR, separated # by a space. if test yes = "$_G_HAVE_PLUSEQ_OP"; then eval 'func_append_quoted () { $debug_cmd func_quote_for_eval "$2" eval "$1+=\\ \$func_quote_for_eval_result" }' else func_append_quoted () { $debug_cmd func_quote_for_eval "$2" eval "$1=\$$1\\ \$func_quote_for_eval_result" } fi # func_append_uniq VAR VALUE # -------------------------- # Append unique VALUE onto the existing contents of VAR, assuming # entries are delimited by the first character of VALUE. For example: # # func_append_uniq options " --another-option option-argument" # # will only append to $options if " --another-option option-argument " # is not already present somewhere in $options already (note spaces at # each end implied by leading space in second argument). func_append_uniq () { $debug_cmd eval _G_current_value='`$ECHO $'$1'`' _G_delim=`expr "$2" : '\(.\)'` case $_G_delim$_G_current_value$_G_delim in *"$2$_G_delim"*) ;; *) func_append "$@" ;; esac } # func_arith TERM... # ------------------ # Set func_arith_result to the result of evaluating TERMs. test -z "$_G_HAVE_ARITH_OP" \ && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \ && _G_HAVE_ARITH_OP=yes if test yes = "$_G_HAVE_ARITH_OP"; then eval 'func_arith () { $debug_cmd func_arith_result=$(( $* )) }' else func_arith () { $debug_cmd func_arith_result=`expr "$@"` } fi # func_basename FILE # ------------------ # Set func_basename_result to FILE with everything up to and including # the last / stripped. if test yes = "$_G_HAVE_XSI_OPS"; then # If this shell supports suffix pattern removal, then use it to avoid # forking. Hide the definitions single quotes in case the shell chokes # on unsupported syntax... _b='func_basename_result=${1##*/}' _d='case $1 in */*) func_dirname_result=${1%/*}$2 ;; * ) func_dirname_result=$3 ;; esac' else # ...otherwise fall back to using sed. _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`' _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"` if test "X$func_dirname_result" = "X$1"; then func_dirname_result=$3 else func_append func_dirname_result "$2" fi' fi eval 'func_basename () { $debug_cmd '"$_b"' }' # func_dirname FILE APPEND NONDIR_REPLACEMENT # ------------------------------------------- # Compute the dirname of FILE. If nonempty, add APPEND to the result, # otherwise set result to NONDIR_REPLACEMENT. eval 'func_dirname () { $debug_cmd '"$_d"' }' # func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT # -------------------------------------------------------- # Perform func_basename and func_dirname in a single function # call: # dirname: Compute the dirname of FILE. If nonempty, # add APPEND to the result, otherwise set result # to NONDIR_REPLACEMENT. # value returned in "$func_dirname_result" # basename: Compute filename of FILE. # value retuned in "$func_basename_result" # For efficiency, we do not delegate to the functions above but instead # duplicate the functionality here. eval 'func_dirname_and_basename () { $debug_cmd '"$_b"' '"$_d"' }' # func_echo ARG... # ---------------- # Echo program name prefixed message. func_echo () { $debug_cmd _G_message=$* func_echo_IFS=$IFS IFS=$nl for _G_line in $_G_message; do IFS=$func_echo_IFS $ECHO "$progname: $_G_line" done IFS=$func_echo_IFS } # func_echo_all ARG... # -------------------- # Invoke $ECHO with all args, space-separated. func_echo_all () { $ECHO "$*" } # func_echo_infix_1 INFIX ARG... # ------------------------------ # Echo program name, followed by INFIX on the first line, with any # additional lines not showing INFIX. func_echo_infix_1 () { $debug_cmd $require_term_colors _G_infix=$1; shift _G_indent=$_G_infix _G_prefix="$progname: $_G_infix: " _G_message=$* # Strip color escape sequences before counting printable length for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan" do test -n "$_G_tc" && { _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"` _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"` } done _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes func_echo_infix_1_IFS=$IFS IFS=$nl for _G_line in $_G_message; do IFS=$func_echo_infix_1_IFS $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2 _G_prefix=$_G_indent done IFS=$func_echo_infix_1_IFS } # func_error ARG... # ----------------- # Echo program name prefixed message to standard error. func_error () { $debug_cmd $require_term_colors func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2 } # func_fatal_error ARG... # ----------------------- # Echo program name prefixed message to standard error, and exit. func_fatal_error () { $debug_cmd func_error "$*" exit $EXIT_FAILURE } # func_grep EXPRESSION FILENAME # ----------------------------- # Check whether EXPRESSION matches any line of FILENAME, without output. func_grep () { $debug_cmd $GREP "$1" "$2" >/dev/null 2>&1 } # func_len STRING # --------------- # Set func_len_result to the length of STRING. STRING may not # start with a hyphen. test -z "$_G_HAVE_XSI_OPS" \ && (eval 'x=a/b/c; test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ && _G_HAVE_XSI_OPS=yes if test yes = "$_G_HAVE_XSI_OPS"; then eval 'func_len () { $debug_cmd func_len_result=${#1} }' else func_len () { $debug_cmd func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len` } fi # func_mkdir_p DIRECTORY-PATH # --------------------------- # Make sure the entire path to DIRECTORY-PATH is available. func_mkdir_p () { $debug_cmd _G_directory_path=$1 _G_dir_list= if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then # Protect directory names starting with '-' case $_G_directory_path in -*) _G_directory_path=./$_G_directory_path ;; esac # While some portion of DIR does not yet exist... while test ! -d "$_G_directory_path"; do # ...make a list in topmost first order. Use a colon delimited # list incase some portion of path contains whitespace. _G_dir_list=$_G_directory_path:$_G_dir_list # If the last portion added has no slash in it, the list is done case $_G_directory_path in */*) ;; *) break ;; esac # ...otherwise throw away the child directory and loop _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"` done _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'` func_mkdir_p_IFS=$IFS; IFS=: for _G_dir in $_G_dir_list; do IFS=$func_mkdir_p_IFS # mkdir can fail with a 'File exist' error if two processes # try to create one of the directories concurrently. Don't # stop in that case! $MKDIR "$_G_dir" 2>/dev/null || : done IFS=$func_mkdir_p_IFS # Bail out if we (or some other process) failed to create a directory. test -d "$_G_directory_path" || \ func_fatal_error "Failed to create '$1'" fi } # func_mktempdir [BASENAME] # ------------------------- # Make a temporary directory that won't clash with other running # libtool processes, and avoids race conditions if possible. If # given, BASENAME is the basename for that directory. func_mktempdir () { $debug_cmd _G_template=${TMPDIR-/tmp}/${1-$progname} if test : = "$opt_dry_run"; then # Return a directory name, but don't create it in dry-run mode _G_tmpdir=$_G_template-$$ else # If mktemp works, use that first and foremost _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null` if test ! -d "$_G_tmpdir"; then # Failing that, at least try and use $RANDOM to avoid a race _G_tmpdir=$_G_template-${RANDOM-0}$$ func_mktempdir_umask=`umask` umask 0077 $MKDIR "$_G_tmpdir" umask $func_mktempdir_umask fi # If we're not in dry-run mode, bomb out on failure test -d "$_G_tmpdir" || \ func_fatal_error "cannot create temporary directory '$_G_tmpdir'" fi $ECHO "$_G_tmpdir" } # func_normal_abspath PATH # ------------------------ # Remove doubled-up and trailing slashes, "." path components, # and cancel out any ".." path components in PATH after making # it an absolute path. func_normal_abspath () { $debug_cmd # These SED scripts presuppose an absolute path with a trailing slash. _G_pathcar='s|^/\([^/]*\).*$|\1|' _G_pathcdr='s|^/[^/]*||' _G_removedotparts=':dotsl s|/\./|/|g t dotsl s|/\.$|/|' _G_collapseslashes='s|/\{1,\}|/|g' _G_finalslash='s|/*$|/|' # Start from root dir and reassemble the path. func_normal_abspath_result= func_normal_abspath_tpath=$1 func_normal_abspath_altnamespace= case $func_normal_abspath_tpath in "") # Empty path, that just means $cwd. func_stripname '' '/' "`pwd`" func_normal_abspath_result=$func_stripname_result return ;; # The next three entries are used to spot a run of precisely # two leading slashes without using negated character classes; # we take advantage of case's first-match behaviour. ///*) # Unusual form of absolute path, do nothing. ;; //*) # Not necessarily an ordinary path; POSIX reserves leading '//' # and for example Cygwin uses it to access remote file shares # over CIFS/SMB, so we conserve a leading double slash if found. func_normal_abspath_altnamespace=/ ;; /*) # Absolute path, do nothing. ;; *) # Relative path, prepend $cwd. func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath ;; esac # Cancel out all the simple stuff to save iterations. We also want # the path to end with a slash for ease of parsing, so make sure # there is one (and only one) here. func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"` while :; do # Processed it all yet? if test / = "$func_normal_abspath_tpath"; then # If we ascended to the root using ".." the result may be empty now. if test -z "$func_normal_abspath_result"; then func_normal_abspath_result=/ fi break fi func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ -e "$_G_pathcar"` func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ -e "$_G_pathcdr"` # Figure out what to do with it case $func_normal_abspath_tcomponent in "") # Trailing empty path component, ignore it. ;; ..) # Parent dir; strip last assembled component from result. func_dirname "$func_normal_abspath_result" func_normal_abspath_result=$func_dirname_result ;; *) # Actual path component, append it. func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent" ;; esac done # Restore leading double-slash if one was found on entry. func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result } # func_notquiet ARG... # -------------------- # Echo program name prefixed message only when not in quiet mode. func_notquiet () { $debug_cmd $opt_quiet || func_echo ${1+"$@"} # A bug in bash halts the script if the last line of a function # fails when set -e is in force, so we need another command to # work around that: : } # func_relative_path SRCDIR DSTDIR # -------------------------------- # Set func_relative_path_result to the relative path from SRCDIR to DSTDIR. func_relative_path () { $debug_cmd func_relative_path_result= func_normal_abspath "$1" func_relative_path_tlibdir=$func_normal_abspath_result func_normal_abspath "$2" func_relative_path_tbindir=$func_normal_abspath_result # Ascend the tree starting from libdir while :; do # check if we have found a prefix of bindir case $func_relative_path_tbindir in $func_relative_path_tlibdir) # found an exact match func_relative_path_tcancelled= break ;; $func_relative_path_tlibdir*) # found a matching prefix func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" func_relative_path_tcancelled=$func_stripname_result if test -z "$func_relative_path_result"; then func_relative_path_result=. fi break ;; *) func_dirname $func_relative_path_tlibdir func_relative_path_tlibdir=$func_dirname_result if test -z "$func_relative_path_tlibdir"; then # Have to descend all the way to the root! func_relative_path_result=../$func_relative_path_result func_relative_path_tcancelled=$func_relative_path_tbindir break fi func_relative_path_result=../$func_relative_path_result ;; esac done # Now calculate path; take care to avoid doubling-up slashes. func_stripname '' '/' "$func_relative_path_result" func_relative_path_result=$func_stripname_result func_stripname '/' '/' "$func_relative_path_tcancelled" if test -n "$func_stripname_result"; then func_append func_relative_path_result "/$func_stripname_result" fi # Normalisation. If bindir is libdir, return '.' else relative path. if test -n "$func_relative_path_result"; then func_stripname './' '' "$func_relative_path_result" func_relative_path_result=$func_stripname_result fi test -n "$func_relative_path_result" || func_relative_path_result=. : } # func_quote_for_eval ARG... # -------------------------- # Aesthetically quote ARGs to be evaled later. # This function returns two values: # i) func_quote_for_eval_result # double-quoted, suitable for a subsequent eval # ii) func_quote_for_eval_unquoted_result # has all characters that are still active within double # quotes backslashified. func_quote_for_eval () { $debug_cmd func_quote_for_eval_unquoted_result= func_quote_for_eval_result= while test 0 -lt $#; do case $1 in *[\\\`\"\$]*) _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;; *) _G_unquoted_arg=$1 ;; esac if test -n "$func_quote_for_eval_unquoted_result"; then func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg" else func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg" fi case $_G_unquoted_arg in # Double-quote args containing shell metacharacters to delay # word splitting, command substitution and variable expansion # for a subsequent eval. # Many Bourne shells cannot handle close brackets correctly # in scan sets, so we specify it separately. *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") _G_quoted_arg=\"$_G_unquoted_arg\" ;; *) _G_quoted_arg=$_G_unquoted_arg ;; esac if test -n "$func_quote_for_eval_result"; then func_append func_quote_for_eval_result " $_G_quoted_arg" else func_append func_quote_for_eval_result "$_G_quoted_arg" fi shift done } # func_quote_for_expand ARG # ------------------------- # Aesthetically quote ARG to be evaled later; same as above, # but do not quote variable references. func_quote_for_expand () { $debug_cmd case $1 in *[\\\`\"]*) _G_arg=`$ECHO "$1" | $SED \ -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;; *) _G_arg=$1 ;; esac case $_G_arg in # Double-quote args containing shell metacharacters to delay # word splitting and command substitution for a subsequent eval. # Many Bourne shells cannot handle close brackets correctly # in scan sets, so we specify it separately. *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") _G_arg=\"$_G_arg\" ;; esac func_quote_for_expand_result=$_G_arg } # func_stripname PREFIX SUFFIX NAME # --------------------------------- # strip PREFIX and SUFFIX from NAME, and store in func_stripname_result. # PREFIX and SUFFIX must not contain globbing or regex special # characters, hashes, percent signs, but SUFFIX may contain a leading # dot (in which case that matches only a dot). if test yes = "$_G_HAVE_XSI_OPS"; then eval 'func_stripname () { $debug_cmd # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are # positional parameters, so assign one to ordinary variable first. func_stripname_result=$3 func_stripname_result=${func_stripname_result#"$1"} func_stripname_result=${func_stripname_result%"$2"} }' else func_stripname () { $debug_cmd case $2 in .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;; *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;; esac } fi # func_show_eval CMD [FAIL_EXP] # ----------------------------- # Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is # not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP # is given, then evaluate it. func_show_eval () { $debug_cmd _G_cmd=$1 _G_fail_exp=${2-':'} func_quote_for_expand "$_G_cmd" eval "func_notquiet $func_quote_for_expand_result" $opt_dry_run || { eval "$_G_cmd" _G_status=$? if test 0 -ne "$_G_status"; then eval "(exit $_G_status); $_G_fail_exp" fi } } # func_show_eval_locale CMD [FAIL_EXP] # ------------------------------------ # Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is # not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP # is given, then evaluate it. Use the saved locale for evaluation. func_show_eval_locale () { $debug_cmd _G_cmd=$1 _G_fail_exp=${2-':'} $opt_quiet || { func_quote_for_expand "$_G_cmd" eval "func_echo $func_quote_for_expand_result" } $opt_dry_run || { eval "$_G_user_locale $_G_cmd" _G_status=$? eval "$_G_safe_locale" if test 0 -ne "$_G_status"; then eval "(exit $_G_status); $_G_fail_exp" fi } } # func_tr_sh # ---------- # Turn $1 into a string suitable for a shell variable name. # Result is stored in $func_tr_sh_result. All characters # not in the set a-zA-Z0-9_ are replaced with '_'. Further, # if $1 begins with a digit, a '_' is prepended as well. func_tr_sh () { $debug_cmd case $1 in [0-9]* | *[!a-zA-Z0-9_]*) func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'` ;; * ) func_tr_sh_result=$1 ;; esac } # func_verbose ARG... # ------------------- # Echo program name prefixed message in verbose mode only. func_verbose () { $debug_cmd $opt_verbose && func_echo "$*" : } # func_warn_and_continue ARG... # ----------------------------- # Echo program name prefixed warning message to standard error. func_warn_and_continue () { $debug_cmd $require_term_colors func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2 } # func_warning CATEGORY ARG... # ---------------------------- # Echo program name prefixed warning message to standard error. Warning # messages can be filtered according to CATEGORY, where this function # elides messages where CATEGORY is not listed in the global variable # 'opt_warning_types'. func_warning () { $debug_cmd # CATEGORY must be in the warning_categories list! case " $warning_categories " in *" $1 "*) ;; *) func_internal_error "invalid warning category '$1'" ;; esac _G_category=$1 shift case " $opt_warning_types " in *" $_G_category "*) $warning_func ${1+"$@"} ;; esac } # func_sort_ver VER1 VER2 # ----------------------- # 'sort -V' is not generally available. # Note this deviates from the version comparison in automake # in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a # but this should suffice as we won't be specifying old # version formats or redundant trailing .0 in bootstrap.conf. # If we did want full compatibility then we should probably # use m4_version_compare from autoconf. func_sort_ver () { $debug_cmd printf '%s\n%s\n' "$1" "$2" \ | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n } # func_lt_ver PREV CURR # --------------------- # Return true if PREV and CURR are in the correct order according to # func_sort_ver, otherwise false. Use it like this: # # func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..." func_lt_ver () { $debug_cmd test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q` } # Local variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" # time-stamp-time-zone: "UTC" # End: #! /bin/sh # Set a version string for this script. scriptversion=2014-01-07.03; # UTC # A portable, pluggable option parser for Bourne shell. # Written by Gary V. Vaughan, 2010 # Copyright (C) 2010-2015 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # Please report bugs or propose patches to gary@gnu.org. ## ------ ## ## Usage. ## ## ------ ## # This file is a library for parsing options in your shell scripts along # with assorted other useful supporting features that you can make use # of too. # # For the simplest scripts you might need only: # # #!/bin/sh # . relative/path/to/funclib.sh # . relative/path/to/options-parser # scriptversion=1.0 # func_options ${1+"$@"} # eval set dummy "$func_options_result"; shift # ...rest of your script... # # In order for the '--version' option to work, you will need to have a # suitably formatted comment like the one at the top of this file # starting with '# Written by ' and ending with '# warranty; '. # # For '-h' and '--help' to work, you will also need a one line # description of your script's purpose in a comment directly above the # '# Written by ' line, like the one at the top of this file. # # The default options also support '--debug', which will turn on shell # execution tracing (see the comment above debug_cmd below for another # use), and '--verbose' and the func_verbose function to allow your script # to display verbose messages only when your user has specified # '--verbose'. # # After sourcing this file, you can plug processing for additional # options by amending the variables from the 'Configuration' section # below, and following the instructions in the 'Option parsing' # section further down. ## -------------- ## ## Configuration. ## ## -------------- ## # You should override these variables in your script after sourcing this # file so that they reflect the customisations you have added to the # option parser. # The usage line for option parsing errors and the start of '-h' and # '--help' output messages. You can embed shell variables for delayed # expansion at the time the message is displayed, but you will need to # quote other shell meta-characters carefully to prevent them being # expanded when the contents are evaled. usage='$progpath [OPTION]...' # Short help message in response to '-h' and '--help'. Add to this or # override it after sourcing this library to reflect the full set of # options your script accepts. usage_message="\ --debug enable verbose shell tracing -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] -v, --verbose verbosely report processing --version print version information and exit -h, --help print short or long help message and exit " # Additional text appended to 'usage_message' in response to '--help'. long_help_message=" Warning categories include: 'all' show all warnings 'none' turn off all the warnings 'error' warnings are treated as fatal errors" # Help message printed before fatal option parsing errors. fatal_help="Try '\$progname --help' for more information." ## ------------------------- ## ## Hook function management. ## ## ------------------------- ## # This section contains functions for adding, removing, and running hooks # to the main code. A hook is just a named list of of function, that can # be run in order later on. # func_hookable FUNC_NAME # ----------------------- # Declare that FUNC_NAME will run hooks added with # 'func_add_hook FUNC_NAME ...'. func_hookable () { $debug_cmd func_append hookable_fns " $1" } # func_add_hook FUNC_NAME HOOK_FUNC # --------------------------------- # Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must # first have been declared "hookable" by a call to 'func_hookable'. func_add_hook () { $debug_cmd case " $hookable_fns " in *" $1 "*) ;; *) func_fatal_error "'$1' does not accept hook functions." ;; esac eval func_append ${1}_hooks '" $2"' } # func_remove_hook FUNC_NAME HOOK_FUNC # ------------------------------------ # Remove HOOK_FUNC from the list of functions called by FUNC_NAME. func_remove_hook () { $debug_cmd eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`' } # func_run_hooks FUNC_NAME [ARG]... # --------------------------------- # Run all hook functions registered to FUNC_NAME. # It is assumed that the list of hook functions contains nothing more # than a whitespace-delimited list of legal shell function names, and # no effort is wasted trying to catch shell meta-characters or preserve # whitespace. func_run_hooks () { $debug_cmd case " $hookable_fns " in *" $1 "*) ;; *) func_fatal_error "'$1' does not support hook funcions.n" ;; esac eval _G_hook_fns=\$$1_hooks; shift for _G_hook in $_G_hook_fns; do eval $_G_hook '"$@"' # store returned options list back into positional # parameters for next 'cmd' execution. eval _G_hook_result=\$${_G_hook}_result eval set dummy "$_G_hook_result"; shift done func_quote_for_eval ${1+"$@"} func_run_hooks_result=$func_quote_for_eval_result } ## --------------- ## ## Option parsing. ## ## --------------- ## # In order to add your own option parsing hooks, you must accept the # full positional parameter list in your hook function, remove any # options that you action, and then pass back the remaining unprocessed # options in '<hooked_function_name>_result', escaped suitably for # 'eval'. Like this: # # my_options_prep () # { # $debug_cmd # # # Extend the existing usage message. # usage_message=$usage_message' # -s, --silent don'\''t print informational messages # ' # # func_quote_for_eval ${1+"$@"} # my_options_prep_result=$func_quote_for_eval_result # } # func_add_hook func_options_prep my_options_prep # # # my_silent_option () # { # $debug_cmd # # # Note that for efficiency, we parse as many options as we can # # recognise in a loop before passing the remainder back to the # # caller on the first unrecognised argument we encounter. # while test $# -gt 0; do # opt=$1; shift # case $opt in # --silent|-s) opt_silent=: ;; # # Separate non-argument short options: # -s*) func_split_short_opt "$_G_opt" # set dummy "$func_split_short_opt_name" \ # "-$func_split_short_opt_arg" ${1+"$@"} # shift # ;; # *) set dummy "$_G_opt" "$*"; shift; break ;; # esac # done # # func_quote_for_eval ${1+"$@"} # my_silent_option_result=$func_quote_for_eval_result # } # func_add_hook func_parse_options my_silent_option # # # my_option_validation () # { # $debug_cmd # # $opt_silent && $opt_verbose && func_fatal_help "\ # '--silent' and '--verbose' options are mutually exclusive." # # func_quote_for_eval ${1+"$@"} # my_option_validation_result=$func_quote_for_eval_result # } # func_add_hook func_validate_options my_option_validation # # You'll alse need to manually amend $usage_message to reflect the extra # options you parse. It's preferable to append if you can, so that # multiple option parsing hooks can be added safely. # func_options [ARG]... # --------------------- # All the functions called inside func_options are hookable. See the # individual implementations for details. func_hookable func_options func_options () { $debug_cmd func_options_prep ${1+"$@"} eval func_parse_options \ ${func_options_prep_result+"$func_options_prep_result"} eval func_validate_options \ ${func_parse_options_result+"$func_parse_options_result"} eval func_run_hooks func_options \ ${func_validate_options_result+"$func_validate_options_result"} # save modified positional parameters for caller func_options_result=$func_run_hooks_result } # func_options_prep [ARG]... # -------------------------- # All initialisations required before starting the option parse loop. # Note that when calling hook functions, we pass through the list of # positional parameters. If a hook function modifies that list, and # needs to propogate that back to rest of this script, then the complete # modified list must be put in 'func_run_hooks_result' before # returning. func_hookable func_options_prep func_options_prep () { $debug_cmd # Option defaults: opt_verbose=false opt_warning_types= func_run_hooks func_options_prep ${1+"$@"} # save modified positional parameters for caller func_options_prep_result=$func_run_hooks_result } # func_parse_options [ARG]... # --------------------------- # The main option parsing loop. func_hookable func_parse_options func_parse_options () { $debug_cmd func_parse_options_result= # this just eases exit handling while test $# -gt 0; do # Defer to hook functions for initial option parsing, so they # get priority in the event of reusing an option name. func_run_hooks func_parse_options ${1+"$@"} # Adjust func_parse_options positional parameters to match eval set dummy "$func_run_hooks_result"; shift # Break out of the loop if we already parsed every option. test $# -gt 0 || break _G_opt=$1 shift case $_G_opt in --debug|-x) debug_cmd='set -x' func_echo "enabling shell trace mode" $debug_cmd ;; --no-warnings|--no-warning|--no-warn) set dummy --warnings none ${1+"$@"} shift ;; --warnings|--warning|-W) test $# = 0 && func_missing_arg $_G_opt && break case " $warning_categories $1" in *" $1 "*) # trailing space prevents matching last $1 above func_append_uniq opt_warning_types " $1" ;; *all) opt_warning_types=$warning_categories ;; *none) opt_warning_types=none warning_func=: ;; *error) opt_warning_types=$warning_categories warning_func=func_fatal_error ;; *) func_fatal_error \ "unsupported warning category: '$1'" ;; esac shift ;; --verbose|-v) opt_verbose=: ;; --version) func_version ;; -\?|-h) func_usage ;; --help) func_help ;; # Separate optargs to long options (plugins may need this): --*=*) func_split_equals "$_G_opt" set dummy "$func_split_equals_lhs" \ "$func_split_equals_rhs" ${1+"$@"} shift ;; # Separate optargs to short options: -W*) func_split_short_opt "$_G_opt" set dummy "$func_split_short_opt_name" \ "$func_split_short_opt_arg" ${1+"$@"} shift ;; # Separate non-argument short options: -\?*|-h*|-v*|-x*) func_split_short_opt "$_G_opt" set dummy "$func_split_short_opt_name" \ "-$func_split_short_opt_arg" ${1+"$@"} shift ;; --) break ;; -*) func_fatal_help "unrecognised option: '$_G_opt'" ;; *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; esac done # save modified positional parameters for caller func_quote_for_eval ${1+"$@"} func_parse_options_result=$func_quote_for_eval_result } # func_validate_options [ARG]... # ------------------------------ # Perform any sanity checks on option settings and/or unconsumed # arguments. func_hookable func_validate_options func_validate_options () { $debug_cmd # Display all warnings if -W was not given. test -n "$opt_warning_types" || opt_warning_types=" $warning_categories" func_run_hooks func_validate_options ${1+"$@"} # Bail if the options were screwed! $exit_cmd $EXIT_FAILURE # save modified positional parameters for caller func_validate_options_result=$func_run_hooks_result } ## ----------------- ## ## Helper functions. ## ## ----------------- ## # This section contains the helper functions used by the rest of the # hookable option parser framework in ascii-betical order. # func_fatal_help ARG... # ---------------------- # Echo program name prefixed message to standard error, followed by # a help hint, and exit. func_fatal_help () { $debug_cmd eval \$ECHO \""Usage: $usage"\" eval \$ECHO \""$fatal_help"\" func_error ${1+"$@"} exit $EXIT_FAILURE } # func_help # --------- # Echo long help message to standard output and exit. func_help () { $debug_cmd func_usage_message $ECHO "$long_help_message" exit 0 } # func_missing_arg ARGNAME # ------------------------ # Echo program name prefixed message to standard error and set global # exit_cmd. func_missing_arg () { $debug_cmd func_error "Missing argument for '$1'." exit_cmd=exit } # func_split_equals STRING # ------------------------ # Set func_split_equals_lhs and func_split_equals_rhs shell variables after # splitting STRING at the '=' sign. test -z "$_G_HAVE_XSI_OPS" \ && (eval 'x=a/b/c; test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ && _G_HAVE_XSI_OPS=yes if test yes = "$_G_HAVE_XSI_OPS" then # This is an XSI compatible shell, allowing a faster implementation... eval 'func_split_equals () { $debug_cmd func_split_equals_lhs=${1%%=*} func_split_equals_rhs=${1#*=} test "x$func_split_equals_lhs" = "x$1" \ && func_split_equals_rhs= }' else # ...otherwise fall back to using expr, which is often a shell builtin. func_split_equals () { $debug_cmd func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'` func_split_equals_rhs= test "x$func_split_equals_lhs" = "x$1" \ || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'` } fi #func_split_equals # func_split_short_opt SHORTOPT # ----------------------------- # Set func_split_short_opt_name and func_split_short_opt_arg shell # variables after splitting SHORTOPT after the 2nd character. if test yes = "$_G_HAVE_XSI_OPS" then # This is an XSI compatible shell, allowing a faster implementation... eval 'func_split_short_opt () { $debug_cmd func_split_short_opt_arg=${1#??} func_split_short_opt_name=${1%"$func_split_short_opt_arg"} }' else # ...otherwise fall back to using expr, which is often a shell builtin. func_split_short_opt () { $debug_cmd func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'` func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'` } fi #func_split_short_opt # func_usage # ---------- # Echo short help message to standard output and exit. func_usage () { $debug_cmd func_usage_message $ECHO "Run '$progname --help |${PAGER-more}' for full usage" exit 0 } # func_usage_message # ------------------ # Echo short help message to standard output. func_usage_message () { $debug_cmd eval \$ECHO \""Usage: $usage"\" echo $SED -n 's|^# || /^Written by/{ x;p;x } h /^Written by/q' < "$progpath" echo eval \$ECHO \""$usage_message"\" } # func_version # ------------ # Echo version message to standard output and exit. func_version () { $debug_cmd printf '%s\n' "$progname $scriptversion" $SED -n ' /(C)/!b go :more /\./!{ N s|\n# | | b more } :go /^# Written by /,/# warranty; / { s|^# || s|^# *$|| s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2| p } /^# Written by / { s|^# || p } /^warranty; /q' < "$progpath" exit $? } # Local variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" # time-stamp-time-zone: "UTC" # End: # Set a version string. scriptversion='(GNU libtool) 2.4.6' # func_echo ARG... # ---------------- # Libtool also displays the current mode in messages, so override # funclib.sh func_echo with this custom definition. func_echo () { $debug_cmd _G_message=$* func_echo_IFS=$IFS IFS=$nl for _G_line in $_G_message; do IFS=$func_echo_IFS $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line" done IFS=$func_echo_IFS } # func_warning ARG... # ------------------- # Libtool warnings are not categorized, so override funclib.sh # func_warning with this simpler definition. func_warning () { $debug_cmd $warning_func ${1+"$@"} } ## ---------------- ## ## Options parsing. ## ## ---------------- ## # Hook in the functions to make sure our own options are parsed during # the option parsing loop. usage='$progpath [OPTION]... [MODE-ARG]...' # Short help message in response to '-h'. usage_message="Options: --config show all configuration variables --debug enable verbose shell tracing -n, --dry-run display commands without modifying any files --features display basic configuration information and exit --mode=MODE use operation mode MODE --no-warnings equivalent to '-Wnone' --preserve-dup-deps don't remove duplicate dependency libraries --quiet, --silent don't print informational messages --tag=TAG use configuration variables from tag TAG -v, --verbose print more informational messages than default --version print version information -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] -h, --help, --help-all print short, long, or detailed help message " # Additional text appended to 'usage_message' in response to '--help'. func_help () { $debug_cmd func_usage_message $ECHO "$long_help_message MODE must be one of the following: clean remove files from the build directory compile compile a source file into a libtool object execute automatically set library path, then run a program finish complete the installation of libtool libraries install install libraries or executables link create a library or an executable uninstall remove libraries from an installed directory MODE-ARGS vary depending on the MODE. When passed as first option, '--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that. Try '$progname --help --mode=MODE' for a more detailed description of MODE. When reporting a bug, please describe a test case to reproduce it and include the following information: host-triplet: $host shell: $SHELL compiler: $LTCC compiler flags: $LTCFLAGS linker: $LD (gnu? $with_gnu_ld) version: $progname (GNU libtool) 2.4.6 automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q` autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q` Report bugs to <bug-libtool@gnu.org>. GNU libtool home page: <http://www.gnu.org/software/libtool/>. General help using GNU software: <http://www.gnu.org/gethelp/>." exit 0 } # func_lo2o OBJECT-NAME # --------------------- # Transform OBJECT-NAME from a '.lo' suffix to the platform specific # object suffix. lo2o=s/\\.lo\$/.$objext/ o2lo=s/\\.$objext\$/.lo/ if test yes = "$_G_HAVE_XSI_OPS"; then eval 'func_lo2o () { case $1 in *.lo) func_lo2o_result=${1%.lo}.$objext ;; * ) func_lo2o_result=$1 ;; esac }' # func_xform LIBOBJ-OR-SOURCE # --------------------------- # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise) # suffix to a '.lo' libtool-object suffix. eval 'func_xform () { func_xform_result=${1%.*}.lo }' else # ...otherwise fall back to using sed. func_lo2o () { func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"` } func_xform () { func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'` } fi # func_fatal_configuration ARG... # ------------------------------- # Echo program name prefixed message to standard error, followed by # a configuration failure hint, and exit. func_fatal_configuration () { func_fatal_error ${1+"$@"} \ "See the $PACKAGE documentation for more information." \ "Fatal configuration error." } # func_config # ----------- # Display the configuration for all the tags in this script. func_config () { re_begincf='^# ### BEGIN LIBTOOL' re_endcf='^# ### END LIBTOOL' # Default configuration. $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" # Now print the configurations for the tags. for tagname in $taglist; do $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" done exit $? } # func_features # ------------- # Display the features supported by this script. func_features () { echo "host: $host" if test yes = "$build_libtool_libs"; then echo "enable shared libraries" else echo "disable shared libraries" fi if test yes = "$build_old_libs"; then echo "enable static libraries" else echo "disable static libraries" fi exit $? } # func_enable_tag TAGNAME # ----------------------- # Verify that TAGNAME is valid, and either flag an error and exit, or # enable the TAGNAME tag. We also add TAGNAME to the global $taglist # variable here. func_enable_tag () { # Global variable: tagname=$1 re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" sed_extractcf=/$re_begincf/,/$re_endcf/p # Validate tagname. case $tagname in *[!-_A-Za-z0-9,/]*) func_fatal_error "invalid tag name: $tagname" ;; esac # Don't test for the "default" C tag, as we know it's # there but not specially marked. case $tagname in CC) ;; *) if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then taglist="$taglist $tagname" # Evaluate the configuration. Be careful to quote the path # and the sed script, to avoid splitting on whitespace, but # also don't use non-portable quotes within backquotes within # quotes we have to do it in 2 steps: extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` eval "$extractedcf" else func_error "ignoring unknown tag $tagname" fi ;; esac } # func_check_version_match # ------------------------ # Ensure that we are using m4 macros, and libtool script from the same # release of libtool. func_check_version_match () { if test "$package_revision" != "$macro_revision"; then if test "$VERSION" != "$macro_version"; then if test -z "$macro_version"; then cat >&2 <<_LT_EOF $progname: Version mismatch error. This is $PACKAGE $VERSION, but the $progname: definition of this LT_INIT comes from an older release. $progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION $progname: and run autoconf again. _LT_EOF else cat >&2 <<_LT_EOF $progname: Version mismatch error. This is $PACKAGE $VERSION, but the $progname: definition of this LT_INIT comes from $PACKAGE $macro_version. $progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION $progname: and run autoconf again. _LT_EOF fi else cat >&2 <<_LT_EOF $progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, $progname: but the definition of this LT_INIT comes from revision $macro_revision. $progname: You should recreate aclocal.m4 with macros from revision $package_revision $progname: of $PACKAGE $VERSION and run autoconf again. _LT_EOF fi exit $EXIT_MISMATCH fi } # libtool_options_prep [ARG]... # ----------------------------- # Preparation for options parsed by libtool. libtool_options_prep () { $debug_mode # Option defaults: opt_config=false opt_dlopen= opt_dry_run=false opt_help=false opt_mode= opt_preserve_dup_deps=false opt_quiet=false nonopt= preserve_args= # Shorthand for --mode=foo, only valid as the first argument case $1 in clean|clea|cle|cl) shift; set dummy --mode clean ${1+"$@"}; shift ;; compile|compil|compi|comp|com|co|c) shift; set dummy --mode compile ${1+"$@"}; shift ;; execute|execut|execu|exec|exe|ex|e) shift; set dummy --mode execute ${1+"$@"}; shift ;; finish|finis|fini|fin|fi|f) shift; set dummy --mode finish ${1+"$@"}; shift ;; install|instal|insta|inst|ins|in|i) shift; set dummy --mode install ${1+"$@"}; shift ;; link|lin|li|l) shift; set dummy --mode link ${1+"$@"}; shift ;; uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) shift; set dummy --mode uninstall ${1+"$@"}; shift ;; esac # Pass back the list of options. func_quote_for_eval ${1+"$@"} libtool_options_prep_result=$func_quote_for_eval_result } func_add_hook func_options_prep libtool_options_prep # libtool_parse_options [ARG]... # --------------------------------- # Provide handling for libtool specific options. libtool_parse_options () { $debug_cmd # Perform our own loop to consume as many options as possible in # each iteration. while test $# -gt 0; do _G_opt=$1 shift case $_G_opt in --dry-run|--dryrun|-n) opt_dry_run=: ;; --config) func_config ;; --dlopen|-dlopen) opt_dlopen="${opt_dlopen+$opt_dlopen }$1" shift ;; --preserve-dup-deps) opt_preserve_dup_deps=: ;; --features) func_features ;; --finish) set dummy --mode finish ${1+"$@"}; shift ;; --help) opt_help=: ;; --help-all) opt_help=': help-all' ;; --mode) test $# = 0 && func_missing_arg $_G_opt && break opt_mode=$1 case $1 in # Valid mode arguments: clean|compile|execute|finish|install|link|relink|uninstall) ;; # Catch anything else as an error *) func_error "invalid argument for $_G_opt" exit_cmd=exit break ;; esac shift ;; --no-silent|--no-quiet) opt_quiet=false func_append preserve_args " $_G_opt" ;; --no-warnings|--no-warning|--no-warn) opt_warning=false func_append preserve_args " $_G_opt" ;; --no-verbose) opt_verbose=false func_append preserve_args " $_G_opt" ;; --silent|--quiet) opt_quiet=: opt_verbose=false func_append preserve_args " $_G_opt" ;; --tag) test $# = 0 && func_missing_arg $_G_opt && break opt_tag=$1 func_append preserve_args " $_G_opt $1" func_enable_tag "$1" shift ;; --verbose|-v) opt_quiet=false opt_verbose=: func_append preserve_args " $_G_opt" ;; # An option not handled by this hook function: *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; esac done # save modified positional parameters for caller func_quote_for_eval ${1+"$@"} libtool_parse_options_result=$func_quote_for_eval_result } func_add_hook func_parse_options libtool_parse_options # libtool_validate_options [ARG]... # --------------------------------- # Perform any sanity checks on option settings and/or unconsumed # arguments. libtool_validate_options () { # save first non-option argument if test 0 -lt $#; then nonopt=$1 shift fi # preserve --debug test : = "$debug_cmd" || func_append preserve_args " --debug" case $host in # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452 # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788 *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*) # don't eliminate duplications in $postdeps and $predeps opt_duplicate_compiler_generated_deps=: ;; *) opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps ;; esac $opt_help || { # Sanity checks first: func_check_version_match test yes != "$build_libtool_libs" \ && test yes != "$build_old_libs" \ && func_fatal_configuration "not configured to build any kind of library" # Darwin sucks eval std_shrext=\"$shrext_cmds\" # Only execute mode is allowed to have -dlopen flags. if test -n "$opt_dlopen" && test execute != "$opt_mode"; then func_error "unrecognized option '-dlopen'" $ECHO "$help" 1>&2 exit $EXIT_FAILURE fi # Change the help message to a mode-specific one. generic_help=$help help="Try '$progname --help --mode=$opt_mode' for more information." } # Pass back the unparsed argument list func_quote_for_eval ${1+"$@"} libtool_validate_options_result=$func_quote_for_eval_result } func_add_hook func_validate_options libtool_validate_options # Process options as early as possible so that --help and --version # can return quickly. func_options ${1+"$@"} eval set dummy "$func_options_result"; shift ## ----------- ## ## Main. ## ## ----------- ## magic='%%%MAGIC variable%%%' magic_exe='%%%MAGIC EXE variable%%%' # Global variables. extracted_archives= extracted_serial=0 # If this variable is set in any of the actions, the command in it # will be execed at the end. This prevents here-documents from being # left over by shells. exec_cmd= # A function that is used when there is no print builtin or printf. func_fallback_echo () { eval 'cat <<_LTECHO_EOF $1 _LTECHO_EOF' } # func_generated_by_libtool # True iff stdin has been generated by Libtool. This function is only # a basic sanity check; it will hardly flush out determined imposters. func_generated_by_libtool_p () { $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 } # func_lalib_p file # True iff FILE is a libtool '.la' library or '.lo' object file. # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_lalib_p () { test -f "$1" && $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p } # func_lalib_unsafe_p file # True iff FILE is a libtool '.la' library or '.lo' object file. # This function implements the same check as func_lalib_p without # resorting to external programs. To this end, it redirects stdin and # closes it afterwards, without saving the original file descriptor. # As a safety measure, use it only where a negative result would be # fatal anyway. Works if 'file' does not exist. func_lalib_unsafe_p () { lalib_p=no if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then for lalib_p_l in 1 2 3 4 do read lalib_p_line case $lalib_p_line in \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; esac done exec 0<&5 5<&- fi test yes = "$lalib_p" } # func_ltwrapper_script_p file # True iff FILE is a libtool wrapper script # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_ltwrapper_script_p () { test -f "$1" && $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p } # func_ltwrapper_executable_p file # True iff FILE is a libtool wrapper executable # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_ltwrapper_executable_p () { func_ltwrapper_exec_suffix= case $1 in *.exe) ;; *) func_ltwrapper_exec_suffix=.exe ;; esac $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 } # func_ltwrapper_scriptname file # Assumes file is an ltwrapper_executable # uses $file to determine the appropriate filename for a # temporary ltwrapper_script. func_ltwrapper_scriptname () { func_dirname_and_basename "$1" "" "." func_stripname '' '.exe' "$func_basename_result" func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper } # func_ltwrapper_p file # True iff FILE is a libtool wrapper script or wrapper executable # This function is only a basic sanity check; it will hardly flush out # determined imposters. func_ltwrapper_p () { func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" } # func_execute_cmds commands fail_cmd # Execute tilde-delimited COMMANDS. # If FAIL_CMD is given, eval that upon failure. # FAIL_CMD may read-access the current command in variable CMD! func_execute_cmds () { $debug_cmd save_ifs=$IFS; IFS='~' for cmd in $1; do IFS=$sp$nl eval cmd=\"$cmd\" IFS=$save_ifs func_show_eval "$cmd" "${2-:}" done IFS=$save_ifs } # func_source file # Source FILE, adding directory component if necessary. # Note that it is not necessary on cygwin/mingw to append a dot to # FILE even if both FILE and FILE.exe exist: automatic-append-.exe # behavior happens only for exec(3), not for open(2)! Also, sourcing # 'FILE.' does not work on cygwin managed mounts. func_source () { $debug_cmd case $1 in */* | *\\*) . "$1" ;; *) . "./$1" ;; esac } # func_resolve_sysroot PATH # Replace a leading = in PATH with a sysroot. Store the result into # func_resolve_sysroot_result func_resolve_sysroot () { func_resolve_sysroot_result=$1 case $func_resolve_sysroot_result in =*) func_stripname '=' '' "$func_resolve_sysroot_result" func_resolve_sysroot_result=$lt_sysroot$func_stripname_result ;; esac } # func_replace_sysroot PATH # If PATH begins with the sysroot, replace it with = and # store the result into func_replace_sysroot_result. func_replace_sysroot () { case $lt_sysroot:$1 in ?*:"$lt_sysroot"*) func_stripname "$lt_sysroot" '' "$1" func_replace_sysroot_result='='$func_stripname_result ;; *) # Including no sysroot. func_replace_sysroot_result=$1 ;; esac } # func_infer_tag arg # Infer tagged configuration to use if any are available and # if one wasn't chosen via the "--tag" command line option. # Only attempt this if the compiler in the base compile # command doesn't match the default compiler. # arg is usually of the form 'gcc ...' func_infer_tag () { $debug_cmd if test -n "$available_tags" && test -z "$tagname"; then CC_quoted= for arg in $CC; do func_append_quoted CC_quoted "$arg" done CC_expanded=`func_echo_all $CC` CC_quoted_expanded=`func_echo_all $CC_quoted` case $@ in # Blanks in the command may have been stripped by the calling shell, # but not from the CC environment variable when configure was run. " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; # Blanks at the start of $base_compile will cause this to fail # if we don't check for them as well. *) for z in $available_tags; do if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then # Evaluate the configuration. eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" CC_quoted= for arg in $CC; do # Double-quote args containing other shell metacharacters. func_append_quoted CC_quoted "$arg" done CC_expanded=`func_echo_all $CC` CC_quoted_expanded=`func_echo_all $CC_quoted` case "$@ " in " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) # The compiler in the base compile command matches # the one in the tagged configuration. # Assume this is the tagged configuration we want. tagname=$z break ;; esac fi done # If $tagname still isn't set, then no tagged configuration # was found and let the user know that the "--tag" command # line option must be used. if test -z "$tagname"; then func_echo "unable to infer tagged configuration" func_fatal_error "specify a tag with '--tag'" # else # func_verbose "using $tagname tagged configuration" fi ;; esac fi } # func_write_libtool_object output_name pic_name nonpic_name # Create a libtool object file (analogous to a ".la" file), # but don't create it if we're doing a dry run. func_write_libtool_object () { write_libobj=$1 if test yes = "$build_libtool_libs"; then write_lobj=\'$2\' else write_lobj=none fi if test yes = "$build_old_libs"; then write_oldobj=\'$3\' else write_oldobj=none fi $opt_dry_run || { cat >${write_libobj}T <<EOF # $write_libobj - a libtool object file # Generated by $PROGRAM (GNU $PACKAGE) $VERSION # # Please DO NOT delete this file! # It is necessary for linking the library. # Name of the PIC object. pic_object=$write_lobj # Name of the non-PIC object non_pic_object=$write_oldobj EOF $MV "${write_libobj}T" "$write_libobj" } } ################################################## # FILE NAME AND PATH CONVERSION HELPER FUNCTIONS # ################################################## # func_convert_core_file_wine_to_w32 ARG # Helper function used by file name conversion functions when $build is *nix, # and $host is mingw, cygwin, or some other w32 environment. Relies on a # correctly configured wine environment available, with the winepath program # in $build's $PATH. # # ARG is the $build file name to be converted to w32 format. # Result is available in $func_convert_core_file_wine_to_w32_result, and will # be empty on error (or when ARG is empty) func_convert_core_file_wine_to_w32 () { $debug_cmd func_convert_core_file_wine_to_w32_result=$1 if test -n "$1"; then # Unfortunately, winepath does not exit with a non-zero error code, so we # are forced to check the contents of stdout. On the other hand, if the # command is not found, the shell will set an exit code of 127 and print # *an error message* to stdout. So we must check for both error code of # zero AND non-empty stdout, which explains the odd construction: func_convert_core_file_wine_to_w32_tmp=`winepath -w "$1" 2>/dev/null` if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | $SED -e "$sed_naive_backslashify"` else func_convert_core_file_wine_to_w32_result= fi fi } # end: func_convert_core_file_wine_to_w32 # func_convert_core_path_wine_to_w32 ARG # Helper function used by path conversion functions when $build is *nix, and # $host is mingw, cygwin, or some other w32 environment. Relies on a correctly # configured wine environment available, with the winepath program in $build's # $PATH. Assumes ARG has no leading or trailing path separator characters. # # ARG is path to be converted from $build format to win32. # Result is available in $func_convert_core_path_wine_to_w32_result. # Unconvertible file (directory) names in ARG are skipped; if no directory names # are convertible, then the result may be empty. func_convert_core_path_wine_to_w32 () { $debug_cmd # unfortunately, winepath doesn't convert paths, only file names func_convert_core_path_wine_to_w32_result= if test -n "$1"; then oldIFS=$IFS IFS=: for func_convert_core_path_wine_to_w32_f in $1; do IFS=$oldIFS func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" if test -n "$func_convert_core_file_wine_to_w32_result"; then if test -z "$func_convert_core_path_wine_to_w32_result"; then func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result else func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" fi fi done IFS=$oldIFS fi } # end: func_convert_core_path_wine_to_w32 # func_cygpath ARGS... # Wrapper around calling the cygpath program via LT_CYGPATH. This is used when # when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) # $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or # (2), returns the Cygwin file name or path in func_cygpath_result (input # file name or path is assumed to be in w32 format, as previously converted # from $build's *nix or MSYS format). In case (3), returns the w32 file name # or path in func_cygpath_result (input file name or path is assumed to be in # Cygwin format). Returns an empty string on error. # # ARGS are passed to cygpath, with the last one being the file name or path to # be converted. # # Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH # environment variable; do not put it in $PATH. func_cygpath () { $debug_cmd if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` if test "$?" -ne 0; then # on failure, ensure result is empty func_cygpath_result= fi else func_cygpath_result= func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'" fi } #end: func_cygpath # func_convert_core_msys_to_w32 ARG # Convert file name or path ARG from MSYS format to w32 format. Return # result in func_convert_core_msys_to_w32_result. func_convert_core_msys_to_w32 () { $debug_cmd # awkward: cmd appends spaces to result func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"` } #end: func_convert_core_msys_to_w32 # func_convert_file_check ARG1 ARG2 # Verify that ARG1 (a file name in $build format) was converted to $host # format in ARG2. Otherwise, emit an error message, but continue (resetting # func_to_host_file_result to ARG1). func_convert_file_check () { $debug_cmd if test -z "$2" && test -n "$1"; then func_error "Could not determine host file name corresponding to" func_error " '$1'" func_error "Continuing, but uninstalled executables may not work." # Fallback: func_to_host_file_result=$1 fi } # end func_convert_file_check # func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH # Verify that FROM_PATH (a path in $build format) was converted to $host # format in TO_PATH. Otherwise, emit an error message, but continue, resetting # func_to_host_file_result to a simplistic fallback value (see below). func_convert_path_check () { $debug_cmd if test -z "$4" && test -n "$3"; then func_error "Could not determine the host path corresponding to" func_error " '$3'" func_error "Continuing, but uninstalled executables may not work." # Fallback. This is a deliberately simplistic "conversion" and # should not be "improved". See libtool.info. if test "x$1" != "x$2"; then lt_replace_pathsep_chars="s|$1|$2|g" func_to_host_path_result=`echo "$3" | $SED -e "$lt_replace_pathsep_chars"` else func_to_host_path_result=$3 fi fi } # end func_convert_path_check # func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG # Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT # and appending REPL if ORIG matches BACKPAT. func_convert_path_front_back_pathsep () { $debug_cmd case $4 in $1 ) func_to_host_path_result=$3$func_to_host_path_result ;; esac case $4 in $2 ) func_append func_to_host_path_result "$3" ;; esac } # end func_convert_path_front_back_pathsep ################################################## # $build to $host FILE NAME CONVERSION FUNCTIONS # ################################################## # invoked via '$to_host_file_cmd ARG' # # In each case, ARG is the path to be converted from $build to $host format. # Result will be available in $func_to_host_file_result. # func_to_host_file ARG # Converts the file name ARG from $build format to $host format. Return result # in func_to_host_file_result. func_to_host_file () { $debug_cmd $to_host_file_cmd "$1" } # end func_to_host_file # func_to_tool_file ARG LAZY # converts the file name ARG from $build format to toolchain format. Return # result in func_to_tool_file_result. If the conversion in use is listed # in (the comma separated) LAZY, no conversion takes place. func_to_tool_file () { $debug_cmd case ,$2, in *,"$to_tool_file_cmd",*) func_to_tool_file_result=$1 ;; *) $to_tool_file_cmd "$1" func_to_tool_file_result=$func_to_host_file_result ;; esac } # end func_to_tool_file # func_convert_file_noop ARG # Copy ARG to func_to_host_file_result. func_convert_file_noop () { func_to_host_file_result=$1 } # end func_convert_file_noop # func_convert_file_msys_to_w32 ARG # Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic # conversion to w32 is not available inside the cwrapper. Returns result in # func_to_host_file_result. func_convert_file_msys_to_w32 () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then func_convert_core_msys_to_w32 "$1" func_to_host_file_result=$func_convert_core_msys_to_w32_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_msys_to_w32 # func_convert_file_cygwin_to_w32 ARG # Convert file name ARG from Cygwin to w32 format. Returns result in # func_to_host_file_result. func_convert_file_cygwin_to_w32 () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then # because $build is cygwin, we call "the" cygpath in $PATH; no need to use # LT_CYGPATH in this case. func_to_host_file_result=`cygpath -m "$1"` fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_cygwin_to_w32 # func_convert_file_nix_to_w32 ARG # Convert file name ARG from *nix to w32 format. Requires a wine environment # and a working winepath. Returns result in func_to_host_file_result. func_convert_file_nix_to_w32 () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then func_convert_core_file_wine_to_w32 "$1" func_to_host_file_result=$func_convert_core_file_wine_to_w32_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_nix_to_w32 # func_convert_file_msys_to_cygwin ARG # Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. # Returns result in func_to_host_file_result. func_convert_file_msys_to_cygwin () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then func_convert_core_msys_to_w32 "$1" func_cygpath -u "$func_convert_core_msys_to_w32_result" func_to_host_file_result=$func_cygpath_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_msys_to_cygwin # func_convert_file_nix_to_cygwin ARG # Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed # in a wine environment, working winepath, and LT_CYGPATH set. Returns result # in func_to_host_file_result. func_convert_file_nix_to_cygwin () { $debug_cmd func_to_host_file_result=$1 if test -n "$1"; then # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. func_convert_core_file_wine_to_w32 "$1" func_cygpath -u "$func_convert_core_file_wine_to_w32_result" func_to_host_file_result=$func_cygpath_result fi func_convert_file_check "$1" "$func_to_host_file_result" } # end func_convert_file_nix_to_cygwin ############################################# # $build to $host PATH CONVERSION FUNCTIONS # ############################################# # invoked via '$to_host_path_cmd ARG' # # In each case, ARG is the path to be converted from $build to $host format. # The result will be available in $func_to_host_path_result. # # Path separators are also converted from $build format to $host format. If # ARG begins or ends with a path separator character, it is preserved (but # converted to $host format) on output. # # All path conversion functions are named using the following convention: # file name conversion function : func_convert_file_X_to_Y () # path conversion function : func_convert_path_X_to_Y () # where, for any given $build/$host combination the 'X_to_Y' value is the # same. If conversion functions are added for new $build/$host combinations, # the two new functions must follow this pattern, or func_init_to_host_path_cmd # will break. # func_init_to_host_path_cmd # Ensures that function "pointer" variable $to_host_path_cmd is set to the # appropriate value, based on the value of $to_host_file_cmd. to_host_path_cmd= func_init_to_host_path_cmd () { $debug_cmd if test -z "$to_host_path_cmd"; then func_stripname 'func_convert_file_' '' "$to_host_file_cmd" to_host_path_cmd=func_convert_path_$func_stripname_result fi } # func_to_host_path ARG # Converts the path ARG from $build format to $host format. Return result # in func_to_host_path_result. func_to_host_path () { $debug_cmd func_init_to_host_path_cmd $to_host_path_cmd "$1" } # end func_to_host_path # func_convert_path_noop ARG # Copy ARG to func_to_host_path_result. func_convert_path_noop () { func_to_host_path_result=$1 } # end func_convert_path_noop # func_convert_path_msys_to_w32 ARG # Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic # conversion to w32 is not available inside the cwrapper. Returns result in # func_to_host_path_result. func_convert_path_msys_to_w32 () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # Remove leading and trailing path separator characters from ARG. MSYS # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; # and winepath ignores them completely. func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" func_to_host_path_result=$func_convert_core_msys_to_w32_result func_convert_path_check : ";" \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" fi } # end func_convert_path_msys_to_w32 # func_convert_path_cygwin_to_w32 ARG # Convert path ARG from Cygwin to w32 format. Returns result in # func_to_host_file_result. func_convert_path_cygwin_to_w32 () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # See func_convert_path_msys_to_w32: func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` func_convert_path_check : ";" \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" fi } # end func_convert_path_cygwin_to_w32 # func_convert_path_nix_to_w32 ARG # Convert path ARG from *nix to w32 format. Requires a wine environment and # a working winepath. Returns result in func_to_host_file_result. func_convert_path_nix_to_w32 () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # See func_convert_path_msys_to_w32: func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" func_to_host_path_result=$func_convert_core_path_wine_to_w32_result func_convert_path_check : ";" \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" fi } # end func_convert_path_nix_to_w32 # func_convert_path_msys_to_cygwin ARG # Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. # Returns result in func_to_host_file_result. func_convert_path_msys_to_cygwin () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # See func_convert_path_msys_to_w32: func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" func_cygpath -u -p "$func_convert_core_msys_to_w32_result" func_to_host_path_result=$func_cygpath_result func_convert_path_check : : \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" : "$1" fi } # end func_convert_path_msys_to_cygwin # func_convert_path_nix_to_cygwin ARG # Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a # a wine environment, working winepath, and LT_CYGPATH set. Returns result in # func_to_host_file_result. func_convert_path_nix_to_cygwin () { $debug_cmd func_to_host_path_result=$1 if test -n "$1"; then # Remove leading and trailing path separator characters from # ARG. msys behavior is inconsistent here, cygpath turns them # into '.;' and ';.', and winepath ignores them completely. func_stripname : : "$1" func_to_host_path_tmp1=$func_stripname_result func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" func_to_host_path_result=$func_cygpath_result func_convert_path_check : : \ "$func_to_host_path_tmp1" "$func_to_host_path_result" func_convert_path_front_back_pathsep ":*" "*:" : "$1" fi } # end func_convert_path_nix_to_cygwin # func_dll_def_p FILE # True iff FILE is a Windows DLL '.def' file. # Keep in sync with _LT_DLL_DEF_P in libtool.m4 func_dll_def_p () { $debug_cmd func_dll_def_p_tmp=`$SED -n \ -e 's/^[ ]*//' \ -e '/^\(;.*\)*$/d' \ -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \ -e q \ "$1"` test DEF = "$func_dll_def_p_tmp" } # func_mode_compile arg... func_mode_compile () { $debug_cmd # Get the compilation command and the source file. base_compile= srcfile=$nonopt # always keep a non-empty value in "srcfile" suppress_opt=yes suppress_output= arg_mode=normal libobj= later= pie_flag= for arg do case $arg_mode in arg ) # do not "continue". Instead, add this to base_compile lastarg=$arg arg_mode=normal ;; target ) libobj=$arg arg_mode=normal continue ;; normal ) # Accept any command-line options. case $arg in -o) test -n "$libobj" && \ func_fatal_error "you cannot specify '-o' more than once" arg_mode=target continue ;; -pie | -fpie | -fPIE) func_append pie_flag " $arg" continue ;; -shared | -static | -prefer-pic | -prefer-non-pic) func_append later " $arg" continue ;; -no-suppress) suppress_opt=no continue ;; -Xcompiler) arg_mode=arg # the next one goes into the "base_compile" arg list continue # The current "srcfile" will either be retained or ;; # replaced later. I would guess that would be a bug. -Wc,*) func_stripname '-Wc,' '' "$arg" args=$func_stripname_result lastarg= save_ifs=$IFS; IFS=, for arg in $args; do IFS=$save_ifs func_append_quoted lastarg "$arg" done IFS=$save_ifs func_stripname ' ' '' "$lastarg" lastarg=$func_stripname_result # Add the arguments to base_compile. func_append base_compile " $lastarg" continue ;; *) # Accept the current argument as the source file. # The previous "srcfile" becomes the current argument. # lastarg=$srcfile srcfile=$arg ;; esac # case $arg ;; esac # case $arg_mode # Aesthetically quote the previous argument. func_append_quoted base_compile "$lastarg" done # for arg case $arg_mode in arg) func_fatal_error "you must specify an argument for -Xcompile" ;; target) func_fatal_error "you must specify a target with '-o'" ;; *) # Get the name of the library object. test -z "$libobj" && { func_basename "$srcfile" libobj=$func_basename_result } ;; esac # Recognize several different file suffixes. # If the user specifies -o file.o, it is replaced with file.lo case $libobj in *.[cCFSifmso] | \ *.ada | *.adb | *.ads | *.asm | \ *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \ *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup) func_xform "$libobj" libobj=$func_xform_result ;; esac case $libobj in *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;; *) func_fatal_error "cannot determine name of library object from '$libobj'" ;; esac func_infer_tag $base_compile for arg in $later; do case $arg in -shared) test yes = "$build_libtool_libs" \ || func_fatal_configuration "cannot build a shared library" build_old_libs=no continue ;; -static) build_libtool_libs=no build_old_libs=yes continue ;; -prefer-pic) pic_mode=yes continue ;; -prefer-non-pic) pic_mode=no continue ;; esac done func_quote_for_eval "$libobj" test "X$libobj" != "X$func_quote_for_eval_result" \ && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \ && func_warning "libobj name '$libobj' may not contain shell special characters." func_dirname_and_basename "$obj" "/" "" objname=$func_basename_result xdir=$func_dirname_result lobj=$xdir$objdir/$objname test -z "$base_compile" && \ func_fatal_help "you must specify a compilation command" # Delete any leftover library objects. if test yes = "$build_old_libs"; then removelist="$obj $lobj $libobj ${libobj}T" else removelist="$lobj $libobj ${libobj}T" fi # On Cygwin there's no "real" PIC flag so we must build both object types case $host_os in cygwin* | mingw* | pw32* | os2* | cegcc*) pic_mode=default ;; esac if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then # non-PIC code in shared libraries is not supported pic_mode=default fi # Calculate the filename of the output object if compiler does # not support -o with -c if test no = "$compiler_c_o"; then output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext lockfile=$output_obj.lock else output_obj= need_locks=no lockfile= fi # Lock this critical section if it is needed # We use this script file to make the link, it avoids creating a new file if test yes = "$need_locks"; then until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do func_echo "Waiting for $lockfile to be removed" sleep 2 done elif test warn = "$need_locks"; then if test -f "$lockfile"; then $ECHO "\ *** ERROR, $lockfile exists and contains: `cat $lockfile 2>/dev/null` This indicates that another process is trying to use the same temporary object file, and libtool could not work around it because your compiler does not support '-c' and '-o' together. If you repeat this compilation, it may succeed, by chance, but you had better avoid parallel builds (make -j) in this platform, or get a better compiler." $opt_dry_run || $RM $removelist exit $EXIT_FAILURE fi func_append removelist " $output_obj" $ECHO "$srcfile" > "$lockfile" fi $opt_dry_run || $RM $removelist func_append removelist " $lockfile" trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15 func_to_tool_file "$srcfile" func_convert_file_msys_to_w32 srcfile=$func_to_tool_file_result func_quote_for_eval "$srcfile" qsrcfile=$func_quote_for_eval_result # Only build a PIC object if we are building libtool libraries. if test yes = "$build_libtool_libs"; then # Without this assignment, base_compile gets emptied. fbsd_hideous_sh_bug=$base_compile if test no != "$pic_mode"; then command="$base_compile $qsrcfile $pic_flag" else # Don't build PIC code command="$base_compile $qsrcfile" fi func_mkdir_p "$xdir$objdir" if test -z "$output_obj"; then # Place PIC objects in $objdir func_append command " -o $lobj" fi func_show_eval_locale "$command" \ 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE' if test warn = "$need_locks" && test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then $ECHO "\ *** ERROR, $lockfile contains: `cat $lockfile 2>/dev/null` but it should contain: $srcfile This indicates that another process is trying to use the same temporary object file, and libtool could not work around it because your compiler does not support '-c' and '-o' together. If you repeat this compilation, it may succeed, by chance, but you had better avoid parallel builds (make -j) in this platform, or get a better compiler." $opt_dry_run || $RM $removelist exit $EXIT_FAILURE fi # Just move the object if needed, then go on to compile the next one if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then func_show_eval '$MV "$output_obj" "$lobj"' \ 'error=$?; $opt_dry_run || $RM $removelist; exit $error' fi # Allow error messages only from the first compilation. if test yes = "$suppress_opt"; then suppress_output=' >/dev/null 2>&1' fi fi # Only build a position-dependent object if we build old libraries. if test yes = "$build_old_libs"; then if test yes != "$pic_mode"; then # Don't build PIC code command="$base_compile $qsrcfile$pie_flag" else command="$base_compile $qsrcfile $pic_flag" fi if test yes = "$compiler_c_o"; then func_append command " -o $obj" fi # Suppress compiler output if we already did a PIC compilation. func_append command "$suppress_output" func_show_eval_locale "$command" \ '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' if test warn = "$need_locks" && test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then $ECHO "\ *** ERROR, $lockfile contains: `cat $lockfile 2>/dev/null` but it should contain: $srcfile This indicates that another process is trying to use the same temporary object file, and libtool could not work around it because your compiler does not support '-c' and '-o' together. If you repeat this compilation, it may succeed, by chance, but you had better avoid parallel builds (make -j) in this platform, or get a better compiler." $opt_dry_run || $RM $removelist exit $EXIT_FAILURE fi # Just move the object if needed if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then func_show_eval '$MV "$output_obj" "$obj"' \ 'error=$?; $opt_dry_run || $RM $removelist; exit $error' fi fi $opt_dry_run || { func_write_libtool_object "$libobj" "$objdir/$objname" "$objname" # Unlock the critical section if it was locked if test no != "$need_locks"; then removelist=$lockfile $RM "$lockfile" fi } exit $EXIT_SUCCESS } $opt_help || { test compile = "$opt_mode" && func_mode_compile ${1+"$@"} } func_mode_help () { # We need to display help for each of the modes. case $opt_mode in "") # Generic help is extracted from the usage comments # at the start of this file. func_help ;; clean) $ECHO \ "Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE... Remove files from the build directory. RM is the name of the program to use to delete files associated with each FILE (typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed to RM. If FILE is a libtool library, object or program, all the files associated with it are deleted. Otherwise, only FILE itself is deleted using RM." ;; compile) $ECHO \ "Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE Compile a source file into a libtool library object. This mode accepts the following additional options: -o OUTPUT-FILE set the output file name to OUTPUT-FILE -no-suppress do not suppress compiler output for multiple passes -prefer-pic try to build PIC objects only -prefer-non-pic try to build non-PIC objects only -shared do not build a '.o' file suitable for static linking -static only build a '.o' file suitable for static linking -Wc,FLAG pass FLAG directly to the compiler COMPILE-COMMAND is a command to be used in creating a 'standard' object file from the given SOURCEFILE. The output file name is determined by removing the directory component from SOURCEFILE, then substituting the C source code suffix '.c' with the library object suffix, '.lo'." ;; execute) $ECHO \ "Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]... Automatically set library path, then run a program. This mode accepts the following additional options: -dlopen FILE add the directory containing FILE to the library path This mode sets the library path environment variable according to '-dlopen' flags. If any of the ARGS are libtool executable wrappers, then they are translated into their corresponding uninstalled binary, and any of their required library directories are added to the library path. Then, COMMAND is executed, with ARGS as arguments." ;; finish) $ECHO \ "Usage: $progname [OPTION]... --mode=finish [LIBDIR]... Complete the installation of libtool libraries. Each LIBDIR is a directory that contains libtool libraries. The commands that this mode executes may require superuser privileges. Use the '--dry-run' option if you just want to see what would be executed." ;; install) $ECHO \ "Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND... Install executables or libraries. INSTALL-COMMAND is the installation command. The first component should be either the 'install' or 'cp' program. The following components of INSTALL-COMMAND are treated specially: -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation The rest of the components are interpreted as arguments to that command (only BSD-compatible install options are recognized)." ;; link) $ECHO \ "Usage: $progname [OPTION]... --mode=link LINK-COMMAND... Link object files or libraries together to form another library, or to create an executable program. LINK-COMMAND is a command using the C compiler that you would use to create a program from several object files. The following components of LINK-COMMAND are treated specially: -all-static do not do any dynamic linking at all -avoid-version do not add a version suffix if possible -bindir BINDIR specify path to binaries directory (for systems where libraries must be found in the PATH setting at runtime) -dlopen FILE '-dlpreopen' FILE if it cannot be dlopened at runtime -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3) -export-symbols SYMFILE try to export only the symbols listed in SYMFILE -export-symbols-regex REGEX try to export only the symbols matching REGEX -LLIBDIR search LIBDIR for required installed libraries -lNAME OUTPUT-FILE requires the installed library libNAME -module build a library that can dlopened -no-fast-install disable the fast-install mode -no-install link a not-installable executable -no-undefined declare that a library does not refer to external symbols -o OUTPUT-FILE create OUTPUT-FILE from the specified objects -objectlist FILE use a list of object files found in FILE to specify objects -os2dllname NAME force a short DLL name on OS/2 (no effect on other OSes) -precious-files-regex REGEX don't remove output files matching REGEX -release RELEASE specify package release information -rpath LIBDIR the created library will eventually be installed in LIBDIR -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries -shared only do dynamic linking of libtool libraries -shrext SUFFIX override the standard shared library file extension -static do not do any dynamic linking of uninstalled libtool libraries -static-libtool-libs do not do any dynamic linking of libtool libraries -version-info CURRENT[:REVISION[:AGE]] specify library version info [each variable defaults to 0] -weak LIBNAME declare that the target provides the LIBNAME interface -Wc,FLAG -Xcompiler FLAG pass linker-specific FLAG directly to the compiler -Wl,FLAG -Xlinker FLAG pass linker-specific FLAG directly to the linker -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC) All other options (arguments beginning with '-') are ignored. Every other argument is treated as a filename. Files ending in '.la' are treated as uninstalled libtool libraries, other files are standard or library object files. If the OUTPUT-FILE ends in '.la', then a libtool library is created, only library objects ('.lo' files) may be specified, and '-rpath' is required, except when creating a convenience library. If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created using 'ar' and 'ranlib', or on Windows using 'lib'. If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file is created, otherwise an executable program is created." ;; uninstall) $ECHO \ "Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE... Remove libraries from an installation directory. RM is the name of the program to use to delete files associated with each FILE (typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed to RM. If FILE is a libtool library, all the files associated with it are deleted. Otherwise, only FILE itself is deleted using RM." ;; *) func_fatal_help "invalid operation mode '$opt_mode'" ;; esac echo $ECHO "Try '$progname --help' for more information about other modes." } # Now that we've collected a possible --mode arg, show help if necessary if $opt_help; then if test : = "$opt_help"; then func_mode_help else { func_help noexit for opt_mode in compile link execute install finish uninstall clean; do func_mode_help done } | $SED -n '1p; 2,$s/^Usage:/ or: /p' { func_help noexit for opt_mode in compile link execute install finish uninstall clean; do echo func_mode_help done } | $SED '1d /^When reporting/,/^Report/{ H d } $x /information about other modes/d /more detailed .*MODE/d s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/' fi exit $? fi # func_mode_execute arg... func_mode_execute () { $debug_cmd # The first argument is the command name. cmd=$nonopt test -z "$cmd" && \ func_fatal_help "you must specify a COMMAND" # Handle -dlopen flags immediately. for file in $opt_dlopen; do test -f "$file" \ || func_fatal_help "'$file' is not a file" dir= case $file in *.la) func_resolve_sysroot "$file" file=$func_resolve_sysroot_result # Check to see that this really is a libtool archive. func_lalib_unsafe_p "$file" \ || func_fatal_help "'$lib' is not a valid libtool archive" # Read the libtool library. dlname= library_names= func_source "$file" # Skip this library if it cannot be dlopened. if test -z "$dlname"; then # Warn if it was a shared library. test -n "$library_names" && \ func_warning "'$file' was not linked with '-export-dynamic'" continue fi func_dirname "$file" "" "." dir=$func_dirname_result if test -f "$dir/$objdir/$dlname"; then func_append dir "/$objdir" else if test ! -f "$dir/$dlname"; then func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'" fi fi ;; *.lo) # Just add the directory containing the .lo file. func_dirname "$file" "" "." dir=$func_dirname_result ;; *) func_warning "'-dlopen' is ignored for non-libtool libraries and objects" continue ;; esac # Get the absolute pathname. absdir=`cd "$dir" && pwd` test -n "$absdir" && dir=$absdir # Now add the directory to shlibpath_var. if eval "test -z \"\$$shlibpath_var\""; then eval "$shlibpath_var=\"\$dir\"" else eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\"" fi done # This variable tells wrapper scripts just to set shlibpath_var # rather than running their programs. libtool_execute_magic=$magic # Check if any of the arguments is a wrapper script. args= for file do case $file in -* | *.la | *.lo ) ;; *) # Do a test to see if this is really a libtool program. if func_ltwrapper_script_p "$file"; then func_source "$file" # Transform arg to wrapped name. file=$progdir/$program elif func_ltwrapper_executable_p "$file"; then func_ltwrapper_scriptname "$file" func_source "$func_ltwrapper_scriptname_result" # Transform arg to wrapped name. file=$progdir/$program fi ;; esac # Quote arguments (to preserve shell metacharacters). func_append_quoted args "$file" done if $opt_dry_run; then # Display what would be done. if test -n "$shlibpath_var"; then eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\"" echo "export $shlibpath_var" fi $ECHO "$cmd$args" exit $EXIT_SUCCESS else if test -n "$shlibpath_var"; then # Export the shlibpath_var. eval "export $shlibpath_var" fi # Restore saved environment variables for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES do eval "if test \"\${save_$lt_var+set}\" = set; then $lt_var=\$save_$lt_var; export $lt_var else $lt_unset $lt_var fi" done # Now prepare to actually exec the command. exec_cmd=\$cmd$args fi } test execute = "$opt_mode" && func_mode_execute ${1+"$@"} # func_mode_finish arg... func_mode_finish () { $debug_cmd libs= libdirs= admincmds= for opt in "$nonopt" ${1+"$@"} do if test -d "$opt"; then func_append libdirs " $opt" elif test -f "$opt"; then if func_lalib_unsafe_p "$opt"; then func_append libs " $opt" else func_warning "'$opt' is not a valid libtool archive" fi else func_fatal_error "invalid argument '$opt'" fi done if test -n "$libs"; then if test -n "$lt_sysroot"; then sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"` sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;" else sysroot_cmd= fi # Remove sysroot references if $opt_dry_run; then for lib in $libs; do echo "removing references to $lt_sysroot and '=' prefixes from $lib" done else tmpdir=`func_mktempdir` for lib in $libs; do $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \ > $tmpdir/tmp-la mv -f $tmpdir/tmp-la $lib done ${RM}r "$tmpdir" fi fi if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then for libdir in $libdirs; do if test -n "$finish_cmds"; then # Do each command in the finish commands. func_execute_cmds "$finish_cmds" 'admincmds="$admincmds '"$cmd"'"' fi if test -n "$finish_eval"; then # Do the single finish_eval. eval cmds=\"$finish_eval\" $opt_dry_run || eval "$cmds" || func_append admincmds " $cmds" fi done fi # Exit here if they wanted silent mode. $opt_quiet && exit $EXIT_SUCCESS if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then echo "----------------------------------------------------------------------" echo "Libraries have been installed in:" for libdir in $libdirs; do $ECHO " $libdir" done echo echo "If you ever happen to want to link against installed libraries" echo "in a given directory, LIBDIR, you must either use libtool, and" echo "specify the full pathname of the library, or use the '-LLIBDIR'" echo "flag during linking and do at least one of the following:" if test -n "$shlibpath_var"; then echo " - add LIBDIR to the '$shlibpath_var' environment variable" echo " during execution" fi if test -n "$runpath_var"; then echo " - add LIBDIR to the '$runpath_var' environment variable" echo " during linking" fi if test -n "$hardcode_libdir_flag_spec"; then libdir=LIBDIR eval flag=\"$hardcode_libdir_flag_spec\" $ECHO " - use the '$flag' linker flag" fi if test -n "$admincmds"; then $ECHO " - have your system administrator run these commands:$admincmds" fi if test -f /etc/ld.so.conf; then echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'" fi echo echo "See any operating system documentation about shared libraries for" case $host in solaris2.[6789]|solaris2.1[0-9]) echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" echo "pages." ;; *) echo "more information, such as the ld(1) and ld.so(8) manual pages." ;; esac echo "----------------------------------------------------------------------" fi exit $EXIT_SUCCESS } test finish = "$opt_mode" && func_mode_finish ${1+"$@"} # func_mode_install arg... func_mode_install () { $debug_cmd # There may be an optional sh(1) argument at the beginning of # install_prog (especially on Windows NT). if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" || # Allow the use of GNU shtool's install command. case $nonopt in *shtool*) :;; *) false;; esac then # Aesthetically quote it. func_quote_for_eval "$nonopt" install_prog="$func_quote_for_eval_result " arg=$1 shift else install_prog= arg=$nonopt fi # The real first argument should be the name of the installation program. # Aesthetically quote it. func_quote_for_eval "$arg" func_append install_prog "$func_quote_for_eval_result" install_shared_prog=$install_prog case " $install_prog " in *[\\\ /]cp\ *) install_cp=: ;; *) install_cp=false ;; esac # We need to accept at least all the BSD install flags. dest= files= opts= prev= install_type= isdir=false stripme= no_mode=: for arg do arg2= if test -n "$dest"; then func_append files " $dest" dest=$arg continue fi case $arg in -d) isdir=: ;; -f) if $install_cp; then :; else prev=$arg fi ;; -g | -m | -o) prev=$arg ;; -s) stripme=" -s" continue ;; -*) ;; *) # If the previous option needed an argument, then skip it. if test -n "$prev"; then if test X-m = "X$prev" && test -n "$install_override_mode"; then arg2=$install_override_mode no_mode=false fi prev= else dest=$arg continue fi ;; esac # Aesthetically quote the argument. func_quote_for_eval "$arg" func_append install_prog " $func_quote_for_eval_result" if test -n "$arg2"; then func_quote_for_eval "$arg2" fi func_append install_shared_prog " $func_quote_for_eval_result" done test -z "$install_prog" && \ func_fatal_help "you must specify an install program" test -n "$prev" && \ func_fatal_help "the '$prev' option requires an argument" if test -n "$install_override_mode" && $no_mode; then if $install_cp; then :; else func_quote_for_eval "$install_override_mode" func_append install_shared_prog " -m $func_quote_for_eval_result" fi fi if test -z "$files"; then if test -z "$dest"; then func_fatal_help "no file or destination specified" else func_fatal_help "you must specify a destination" fi fi # Strip any trailing slash from the destination. func_stripname '' '/' "$dest" dest=$func_stripname_result # Check to see that the destination is a directory. test -d "$dest" && isdir=: if $isdir; then destdir=$dest destname= else func_dirname_and_basename "$dest" "" "." destdir=$func_dirname_result destname=$func_basename_result # Not a directory, so check to see that there is only one file specified. set dummy $files; shift test "$#" -gt 1 && \ func_fatal_help "'$dest' is not a directory" fi case $destdir in [\\/]* | [A-Za-z]:[\\/]*) ;; *) for file in $files; do case $file in *.lo) ;; *) func_fatal_help "'$destdir' must be an absolute directory name" ;; esac done ;; esac # This variable tells wrapper scripts just to set variables rather # than running their programs. libtool_install_magic=$magic staticlibs= future_libdirs= current_libdirs= for file in $files; do # Do each installation. case $file in *.$libext) # Do the static libraries later. func_append staticlibs " $file" ;; *.la) func_resolve_sysroot "$file" file=$func_resolve_sysroot_result # Check to see that this really is a libtool archive. func_lalib_unsafe_p "$file" \ || func_fatal_help "'$file' is not a valid libtool archive" library_names= old_library= relink_command= func_source "$file" # Add the libdir to current_libdirs if it is the destination. if test "X$destdir" = "X$libdir"; then case "$current_libdirs " in *" $libdir "*) ;; *) func_append current_libdirs " $libdir" ;; esac else # Note the libdir as a future libdir. case "$future_libdirs " in *" $libdir "*) ;; *) func_append future_libdirs " $libdir" ;; esac fi func_dirname "$file" "/" "" dir=$func_dirname_result func_append dir "$objdir" if test -n "$relink_command"; then # Determine the prefix the user has applied to our future dir. inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` # Don't allow the user to place us outside of our expected # location b/c this prevents finding dependent libraries that # are installed to the same prefix. # At present, this check doesn't affect windows .dll's that # are installed into $libdir/../bin (currently, that works fine) # but it's something to keep an eye on. test "$inst_prefix_dir" = "$destdir" && \ func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir" if test -n "$inst_prefix_dir"; then # Stick the inst_prefix_dir data into the link command. relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` else relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` fi func_warning "relinking '$file'" func_show_eval "$relink_command" \ 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"' fi # See the names of the shared library. set dummy $library_names; shift if test -n "$1"; then realname=$1 shift srcname=$realname test -n "$relink_command" && srcname=${realname}T # Install the shared library and build the symlinks. func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ 'exit $?' tstripme=$stripme case $host_os in cygwin* | mingw* | pw32* | cegcc*) case $realname in *.dll.a) tstripme= ;; esac ;; os2*) case $realname in *_dll.a) tstripme= ;; esac ;; esac if test -n "$tstripme" && test -n "$striplib"; then func_show_eval "$striplib $destdir/$realname" 'exit $?' fi if test "$#" -gt 0; then # Delete the old symlinks, and create new ones. # Try 'ln -sf' first, because the 'ln' binary might depend on # the symlink we replace! Solaris /bin/ln does not understand -f, # so we also need to try rm && ln -s. for linkname do test "$linkname" != "$realname" \ && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" done fi # Do each command in the postinstall commands. lib=$destdir/$realname func_execute_cmds "$postinstall_cmds" 'exit $?' fi # Install the pseudo-library for information purposes. func_basename "$file" name=$func_basename_result instname=$dir/${name}i func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' # Maybe install the static library, too. test -n "$old_library" && func_append staticlibs " $dir/$old_library" ;; *.lo) # Install (i.e. copy) a libtool object. # Figure out destination file name, if it wasn't already specified. if test -n "$destname"; then destfile=$destdir/$destname else func_basename "$file" destfile=$func_basename_result destfile=$destdir/$destfile fi # Deduce the name of the destination old-style object file. case $destfile in *.lo) func_lo2o "$destfile" staticdest=$func_lo2o_result ;; *.$objext) staticdest=$destfile destfile= ;; *) func_fatal_help "cannot copy a libtool object to '$destfile'" ;; esac # Install the libtool object if requested. test -n "$destfile" && \ func_show_eval "$install_prog $file $destfile" 'exit $?' # Install the old object if enabled. if test yes = "$build_old_libs"; then # Deduce the name of the old-style object file. func_lo2o "$file" staticobj=$func_lo2o_result func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' fi exit $EXIT_SUCCESS ;; *) # Figure out destination file name, if it wasn't already specified. if test -n "$destname"; then destfile=$destdir/$destname else func_basename "$file" destfile=$func_basename_result destfile=$destdir/$destfile fi # If the file is missing, and there is a .exe on the end, strip it # because it is most likely a libtool script we actually want to # install stripped_ext= case $file in *.exe) if test ! -f "$file"; then func_stripname '' '.exe' "$file" file=$func_stripname_result stripped_ext=.exe fi ;; esac # Do a test to see if this is really a libtool program. case $host in *cygwin* | *mingw*) if func_ltwrapper_executable_p "$file"; then func_ltwrapper_scriptname "$file" wrapper=$func_ltwrapper_scriptname_result else func_stripname '' '.exe' "$file" wrapper=$func_stripname_result fi ;; *) wrapper=$file ;; esac if func_ltwrapper_script_p "$wrapper"; then notinst_deplibs= relink_command= func_source "$wrapper" # Check the variables that should have been set. test -z "$generated_by_libtool_version" && \ func_fatal_error "invalid libtool wrapper script '$wrapper'" finalize=: for lib in $notinst_deplibs; do # Check to see that each library is installed. libdir= if test -f "$lib"; then func_source "$lib" fi libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'` if test -n "$libdir" && test ! -f "$libfile"; then func_warning "'$lib' has not been installed in '$libdir'" finalize=false fi done relink_command= func_source "$wrapper" outputname= if test no = "$fast_install" && test -n "$relink_command"; then $opt_dry_run || { if $finalize; then tmpdir=`func_mktempdir` func_basename "$file$stripped_ext" file=$func_basename_result outputname=$tmpdir/$file # Replace the output file specification. relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` $opt_quiet || { func_quote_for_expand "$relink_command" eval "func_echo $func_quote_for_expand_result" } if eval "$relink_command"; then : else func_error "error: relink '$file' with the above command before installing it" $opt_dry_run || ${RM}r "$tmpdir" continue fi file=$outputname else func_warning "cannot relink '$file'" fi } else # Install the binary that we compiled earlier. file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` fi fi # remove .exe since cygwin /usr/bin/install will append another # one anyway case $install_prog,$host in */usr/bin/install*,*cygwin*) case $file:$destfile in *.exe:*.exe) # this is ok ;; *.exe:*) destfile=$destfile.exe ;; *:*.exe) func_stripname '' '.exe' "$destfile" destfile=$func_stripname_result ;; esac ;; esac func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' $opt_dry_run || if test -n "$outputname"; then ${RM}r "$tmpdir" fi ;; esac done for file in $staticlibs; do func_basename "$file" name=$func_basename_result # Set up the ranlib parameters. oldlib=$destdir/$name func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 tool_oldlib=$func_to_tool_file_result func_show_eval "$install_prog \$file \$oldlib" 'exit $?' if test -n "$stripme" && test -n "$old_striplib"; then func_show_eval "$old_striplib $tool_oldlib" 'exit $?' fi # Do each command in the postinstall commands. func_execute_cmds "$old_postinstall_cmds" 'exit $?' done test -n "$future_libdirs" && \ func_warning "remember to run '$progname --finish$future_libdirs'" if test -n "$current_libdirs"; then # Maybe just do a dry run. $opt_dry_run && current_libdirs=" -n$current_libdirs" exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs' else exit $EXIT_SUCCESS fi } test install = "$opt_mode" && func_mode_install ${1+"$@"} # func_generate_dlsyms outputname originator pic_p # Extract symbols from dlprefiles and create ${outputname}S.o with # a dlpreopen symbol table. func_generate_dlsyms () { $debug_cmd my_outputname=$1 my_originator=$2 my_pic_p=${3-false} my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'` my_dlsyms= if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then if test -n "$NM" && test -n "$global_symbol_pipe"; then my_dlsyms=${my_outputname}S.c else func_error "not configured to extract global symbols from dlpreopened files" fi fi if test -n "$my_dlsyms"; then case $my_dlsyms in "") ;; *.c) # Discover the nlist of each of the dlfiles. nlist=$output_objdir/$my_outputname.nm func_show_eval "$RM $nlist ${nlist}S ${nlist}T" # Parse the name list into a source file. func_verbose "creating $output_objdir/$my_dlsyms" $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ /* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */ /* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */ #ifdef __cplusplus extern \"C\" { #endif #if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) #pragma GCC diagnostic ignored \"-Wstrict-prototypes\" #endif /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT_DLSYM_CONST #else # define LT_DLSYM_CONST const #endif #define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) /* External symbol declarations for the compiler. */\ " if test yes = "$dlself"; then func_verbose "generating symbol list for '$output'" $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" # Add our own program objects to the symbol list. progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` for progfile in $progfiles; do func_to_tool_file "$progfile" func_convert_file_msys_to_w32 func_verbose "extracting global C symbols from '$func_to_tool_file_result'" $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" done if test -n "$exclude_expsyms"; then $opt_dry_run || { eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' eval '$MV "$nlist"T "$nlist"' } fi if test -n "$export_symbols_regex"; then $opt_dry_run || { eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' eval '$MV "$nlist"T "$nlist"' } fi # Prepare the list of exported symbols if test -z "$export_symbols"; then export_symbols=$output_objdir/$outputname.exp $opt_dry_run || { $RM $export_symbols eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' case $host in *cygwin* | *mingw* | *cegcc* ) eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' ;; esac } else $opt_dry_run || { eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' eval '$MV "$nlist"T "$nlist"' case $host in *cygwin* | *mingw* | *cegcc* ) eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' ;; esac } fi fi for dlprefile in $dlprefiles; do func_verbose "extracting global C symbols from '$dlprefile'" func_basename "$dlprefile" name=$func_basename_result case $host in *cygwin* | *mingw* | *cegcc* ) # if an import library, we need to obtain dlname if func_win32_import_lib_p "$dlprefile"; then func_tr_sh "$dlprefile" eval "curr_lafile=\$libfile_$func_tr_sh_result" dlprefile_dlbasename= if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then # Use subshell, to avoid clobbering current variable values dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` if test -n "$dlprefile_dlname"; then func_basename "$dlprefile_dlname" dlprefile_dlbasename=$func_basename_result else # no lafile. user explicitly requested -dlpreopen <import library>. $sharedlib_from_linklib_cmd "$dlprefile" dlprefile_dlbasename=$sharedlib_from_linklib_result fi fi $opt_dry_run || { if test -n "$dlprefile_dlbasename"; then eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' else func_warning "Could not compute DLL name from $name" eval '$ECHO ": $name " >> "$nlist"' fi func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" } else # not an import lib $opt_dry_run || { eval '$ECHO ": $name " >> "$nlist"' func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" } fi ;; *) $opt_dry_run || { eval '$ECHO ": $name " >> "$nlist"' func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" } ;; esac done $opt_dry_run || { # Make sure we have at least an empty file. test -f "$nlist" || : > "$nlist" if test -n "$exclude_expsyms"; then $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T $MV "$nlist"T "$nlist" fi # Try sorting and uniquifying the output. if $GREP -v "^: " < "$nlist" | if sort -k 3 </dev/null >/dev/null 2>&1; then sort -k 3 else sort +2 fi | uniq > "$nlist"S; then : else $GREP -v "^: " < "$nlist" > "$nlist"S fi if test -f "$nlist"S; then eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' else echo '/* NONE */' >> "$output_objdir/$my_dlsyms" fi func_show_eval '$RM "${nlist}I"' if test -n "$global_symbol_to_import"; then eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I' fi echo >> "$output_objdir/$my_dlsyms" "\ /* The mapping between symbol names and symbols. */ typedef struct { const char *name; void *address; } lt_dlsymlist; extern LT_DLSYM_CONST lt_dlsymlist lt_${my_prefix}_LTX_preloaded_symbols[];\ " if test -s "$nlist"I; then echo >> "$output_objdir/$my_dlsyms" "\ static void lt_syminit(void) { LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols; for (; symbol->name; ++symbol) {" $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms" echo >> "$output_objdir/$my_dlsyms" "\ } }" fi echo >> "$output_objdir/$my_dlsyms" "\ LT_DLSYM_CONST lt_dlsymlist lt_${my_prefix}_LTX_preloaded_symbols[] = { {\"$my_originator\", (void *) 0}," if test -s "$nlist"I; then echo >> "$output_objdir/$my_dlsyms" "\ {\"@INIT@\", (void *) <_syminit}," fi case $need_lib_prefix in no) eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" ;; *) eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" ;; esac echo >> "$output_objdir/$my_dlsyms" "\ {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt_${my_prefix}_LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif\ " } # !$opt_dry_run pic_flag_for_symtable= case "$compile_command " in *" -static "*) ;; *) case $host in # compiling the symbol table file with pic_flag works around # a FreeBSD bug that causes programs to crash when -lm is # linked before any other PIC object. But we must not use # pic_flag when linking with -static. The problem exists in # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; *-*-hpux*) pic_flag_for_symtable=" $pic_flag" ;; *) $my_pic_p && pic_flag_for_symtable=" $pic_flag" ;; esac ;; esac symtab_cflags= for arg in $LTCFLAGS; do case $arg in -pie | -fpie | -fPIE) ;; *) func_append symtab_cflags " $arg" ;; esac done # Now compile the dynamic symbol file. func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' # Clean up the generated files. func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"' # Transform the symbol file into the correct name. symfileobj=$output_objdir/${my_outputname}S.$objext case $host in *cygwin* | *mingw* | *cegcc* ) if test -f "$output_objdir/$my_outputname.def"; then compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` else compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` fi ;; *) compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` ;; esac ;; *) func_fatal_error "unknown suffix for '$my_dlsyms'" ;; esac else # We keep going just in case the user didn't refer to # lt_preloaded_symbols. The linker will fail if global_symbol_pipe # really was required. # Nullify the symbol file. compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` fi } # func_cygming_gnu_implib_p ARG # This predicate returns with zero status (TRUE) if # ARG is a GNU/binutils-style import library. Returns # with nonzero status (FALSE) otherwise. func_cygming_gnu_implib_p () { $debug_cmd func_to_tool_file "$1" func_convert_file_msys_to_w32 func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` test -n "$func_cygming_gnu_implib_tmp" } # func_cygming_ms_implib_p ARG # This predicate returns with zero status (TRUE) if # ARG is an MS-style import library. Returns # with nonzero status (FALSE) otherwise. func_cygming_ms_implib_p () { $debug_cmd func_to_tool_file "$1" func_convert_file_msys_to_w32 func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` test -n "$func_cygming_ms_implib_tmp" } # func_win32_libid arg # return the library type of file 'arg' # # Need a lot of goo to handle *both* DLLs and import libs # Has to be a shell function in order to 'eat' the argument # that is supplied when $file_magic_command is called. # Despite the name, also deal with 64 bit binaries. func_win32_libid () { $debug_cmd win32_libid_type=unknown win32_fileres=`file -L $1 2>/dev/null` case $win32_fileres in *ar\ archive\ import\ library*) # definitely import win32_libid_type="x86 archive import" ;; *ar\ archive*) # could be an import, or static # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then case $nm_interface in "MS dumpbin") if func_cygming_ms_implib_p "$1" || func_cygming_gnu_implib_p "$1" then win32_nmres=import else win32_nmres= fi ;; *) func_to_tool_file "$1" func_convert_file_msys_to_w32 win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | $SED -n -e ' 1,100{ / I /{ s|.*|import| p q } }'` ;; esac case $win32_nmres in import*) win32_libid_type="x86 archive import";; *) win32_libid_type="x86 archive static";; esac fi ;; *DLL*) win32_libid_type="x86 DLL" ;; *executable*) # but shell scripts are "executable" too... case $win32_fileres in *MS\ Windows\ PE\ Intel*) win32_libid_type="x86 DLL" ;; esac ;; esac $ECHO "$win32_libid_type" } # func_cygming_dll_for_implib ARG # # Platform-specific function to extract the # name of the DLL associated with the specified # import library ARG. # Invoked by eval'ing the libtool variable # $sharedlib_from_linklib_cmd # Result is available in the variable # $sharedlib_from_linklib_result func_cygming_dll_for_implib () { $debug_cmd sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` } # func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs # # The is the core of a fallback implementation of a # platform-specific function to extract the name of the # DLL associated with the specified import library LIBNAME. # # SECTION_NAME is either .idata$6 or .idata$7, depending # on the platform and compiler that created the implib. # # Echos the name of the DLL associated with the # specified import library. func_cygming_dll_for_implib_fallback_core () { $debug_cmd match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` $OBJDUMP -s --section "$1" "$2" 2>/dev/null | $SED '/^Contents of section '"$match_literal"':/{ # Place marker at beginning of archive member dllname section s/.*/====MARK====/ p d } # These lines can sometimes be longer than 43 characters, but # are always uninteresting /:[ ]*file format pe[i]\{,1\}-/d /^In archive [^:]*:/d # Ensure marker is printed /^====MARK====/p # Remove all lines with less than 43 characters /^.\{43\}/!d # From remaining lines, remove first 43 characters s/^.\{43\}//' | $SED -n ' # Join marker and all lines until next marker into a single line /^====MARK====/ b para H $ b para b :para x s/\n//g # Remove the marker s/^====MARK====// # Remove trailing dots and whitespace s/[\. \t]*$// # Print /./p' | # we now have a list, one entry per line, of the stringified # contents of the appropriate section of all members of the # archive that possess that section. Heuristic: eliminate # all those that have a first or second character that is # a '.' (that is, objdump's representation of an unprintable # character.) This should work for all archives with less than # 0x302f exports -- but will fail for DLLs whose name actually # begins with a literal '.' or a single character followed by # a '.'. # # Of those that remain, print the first one. $SED -e '/^\./d;/^.\./d;q' } # func_cygming_dll_for_implib_fallback ARG # Platform-specific function to extract the # name of the DLL associated with the specified # import library ARG. # # This fallback implementation is for use when $DLLTOOL # does not support the --identify-strict option. # Invoked by eval'ing the libtool variable # $sharedlib_from_linklib_cmd # Result is available in the variable # $sharedlib_from_linklib_result func_cygming_dll_for_implib_fallback () { $debug_cmd if func_cygming_gnu_implib_p "$1"; then # binutils import library sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` elif func_cygming_ms_implib_p "$1"; then # ms-generated import library sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` else # unknown sharedlib_from_linklib_result= fi } # func_extract_an_archive dir oldlib func_extract_an_archive () { $debug_cmd f_ex_an_ar_dir=$1; shift f_ex_an_ar_oldlib=$1 if test yes = "$lock_old_archive_extraction"; then lockfile=$f_ex_an_ar_oldlib.lock until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do func_echo "Waiting for $lockfile to be removed" sleep 2 done fi func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ 'stat=$?; rm -f "$lockfile"; exit $stat' if test yes = "$lock_old_archive_extraction"; then $opt_dry_run || rm -f "$lockfile" fi if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then : else func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" fi } # func_extract_archives gentop oldlib ... func_extract_archives () { $debug_cmd my_gentop=$1; shift my_oldlibs=${1+"$@"} my_oldobjs= my_xlib= my_xabs= my_xdir= for my_xlib in $my_oldlibs; do # Extract the objects. case $my_xlib in [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;; *) my_xabs=`pwd`"/$my_xlib" ;; esac func_basename "$my_xlib" my_xlib=$func_basename_result my_xlib_u=$my_xlib while :; do case " $extracted_archives " in *" $my_xlib_u "*) func_arith $extracted_serial + 1 extracted_serial=$func_arith_result my_xlib_u=lt$extracted_serial-$my_xlib ;; *) break ;; esac done extracted_archives="$extracted_archives $my_xlib_u" my_xdir=$my_gentop/$my_xlib_u func_mkdir_p "$my_xdir" case $host in *-darwin*) func_verbose "Extracting $my_xabs" # Do not bother doing anything if just a dry run $opt_dry_run || { darwin_orig_dir=`pwd` cd $my_xdir || exit $? darwin_archive=$my_xabs darwin_curdir=`pwd` func_basename "$darwin_archive" darwin_base_archive=$func_basename_result darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` if test -n "$darwin_arches"; then darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` darwin_arch= func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" for darwin_arch in $darwin_arches; do func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch" $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive" cd "unfat-$$/$darwin_base_archive-$darwin_arch" func_extract_an_archive "`pwd`" "$darwin_base_archive" cd "$darwin_curdir" $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" done # $darwin_arches ## Okay now we've a bunch of thin objects, gotta fatten them up :) darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u` darwin_file= darwin_files= for darwin_file in $darwin_filelist; do darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` $LIPO -create -output "$darwin_file" $darwin_files done # $darwin_filelist $RM -rf unfat-$$ cd "$darwin_orig_dir" else cd $darwin_orig_dir func_extract_an_archive "$my_xdir" "$my_xabs" fi # $darwin_arches } # !$opt_dry_run ;; *) func_extract_an_archive "$my_xdir" "$my_xabs" ;; esac my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` done func_extract_archives_result=$my_oldobjs } # func_emit_wrapper [arg=no] # # Emit a libtool wrapper script on stdout. # Don't directly open a file because we may want to # incorporate the script contents within a cygwin/mingw # wrapper executable. Must ONLY be called from within # func_mode_link because it depends on a number of variables # set therein. # # ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR # variable will take. If 'yes', then the emitted script # will assume that the directory where it is stored is # the $objdir directory. This is a cygwin/mingw-specific # behavior. func_emit_wrapper () { func_emit_wrapper_arg1=${1-no} $ECHO "\ #! $SHELL # $output - temporary wrapper script for $objdir/$outputname # Generated by $PROGRAM (GNU $PACKAGE) $VERSION # # The $output program cannot be directly executed until all the libtool # libraries that it depends on are installed. # # This wrapper script should never be moved out of the build directory. # If it is, it will not operate correctly. # Sed substitution that helps us do robust quoting. It backslashifies # metacharacters that are still active within double-quoted strings. sed_quote_subst='$sed_quote_subst' # Be Bourne compatible if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then emulate sh NULLCMD=: # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which # is contrary to our usage. Disable this feature. alias -g '\${1+\"\$@\"}'='\"\$@\"' setopt NO_GLOB_SUBST else case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac fi BIN_SH=xpg4; export BIN_SH # for Tru64 DUALCASE=1; export DUALCASE # for MKS sh # The HP-UX ksh and POSIX shell print the target directory to stdout # if CDPATH is set. (unset CDPATH) >/dev/null 2>&1 && unset CDPATH relink_command=\"$relink_command\" # This environment variable determines our operation mode. if test \"\$libtool_install_magic\" = \"$magic\"; then # install mode needs the following variables: generated_by_libtool_version='$macro_version' notinst_deplibs='$notinst_deplibs' else # When we are sourced in execute mode, \$file and \$ECHO are already set. if test \"\$libtool_execute_magic\" != \"$magic\"; then file=\"\$0\"" qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"` $ECHO "\ # A function that is used when there is no print builtin or printf. func_fallback_echo () { eval 'cat <<_LTECHO_EOF \$1 _LTECHO_EOF' } ECHO=\"$qECHO\" fi # Very basic option parsing. These options are (a) specific to # the libtool wrapper, (b) are identical between the wrapper # /script/ and the wrapper /executable/ that is used only on # windows platforms, and (c) all begin with the string "--lt-" # (application programs are unlikely to have options that match # this pattern). # # There are only two supported options: --lt-debug and # --lt-dump-script. There is, deliberately, no --lt-help. # # The first argument to this parsing function should be the # script's $0 value, followed by "$@". lt_option_debug= func_parse_lt_options () { lt_script_arg0=\$0 shift for lt_opt do case \"\$lt_opt\" in --lt-debug) lt_option_debug=1 ;; --lt-dump-script) lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\` test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=. lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\` cat \"\$lt_dump_D/\$lt_dump_F\" exit 0 ;; --lt-*) \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2 exit 1 ;; esac done # Print the debug banner immediately: if test -n \"\$lt_option_debug\"; then echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2 fi } # Used when --lt-debug. Prints its arguments to stdout # (redirection is the responsibility of the caller) func_lt_dump_args () { lt_dump_args_N=1; for lt_arg do \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\" lt_dump_args_N=\`expr \$lt_dump_args_N + 1\` done } # Core function for launching the target application func_exec_program_core () { " case $host in # Backslashes separate directories on plain windows *-*-mingw | *-*-os2* | *-cegcc*) $ECHO "\ if test -n \"\$lt_option_debug\"; then \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2 func_lt_dump_args \${1+\"\$@\"} 1>&2 fi exec \"\$progdir\\\\\$program\" \${1+\"\$@\"} " ;; *) $ECHO "\ if test -n \"\$lt_option_debug\"; then \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2 func_lt_dump_args \${1+\"\$@\"} 1>&2 fi exec \"\$progdir/\$program\" \${1+\"\$@\"} " ;; esac $ECHO "\ \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2 exit 1 } # A function to encapsulate launching the target application # Strips options in the --lt-* namespace from \$@ and # launches target application with the remaining arguments. func_exec_program () { case \" \$* \" in *\\ --lt-*) for lt_wr_arg do case \$lt_wr_arg in --lt-*) ;; *) set x \"\$@\" \"\$lt_wr_arg\"; shift;; esac shift done ;; esac func_exec_program_core \${1+\"\$@\"} } # Parse options func_parse_lt_options \"\$0\" \${1+\"\$@\"} # Find the directory that this script lives in. thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\` test \"x\$thisdir\" = \"x\$file\" && thisdir=. # Follow symbolic links until we get to the real thisdir. file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\` while test -n \"\$file\"; do destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\` # If there was a directory component, then change thisdir. if test \"x\$destdir\" != \"x\$file\"; then case \"\$destdir\" in [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;; *) thisdir=\"\$thisdir/\$destdir\" ;; esac fi file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\` file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\` done # Usually 'no', except on cygwin/mingw when embedded into # the cwrapper. WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1 if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then # special case for '.' if test \"\$thisdir\" = \".\"; then thisdir=\`pwd\` fi # remove .libs from thisdir case \"\$thisdir\" in *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;; $objdir ) thisdir=. ;; esac fi # Try to get the absolute directory name. absdir=\`cd \"\$thisdir\" && pwd\` test -n \"\$absdir\" && thisdir=\"\$absdir\" " if test yes = "$fast_install"; then $ECHO "\ program=lt-'$outputname'$exeext progdir=\"\$thisdir/$objdir\" if test ! -f \"\$progdir/\$program\" || { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\ test \"X\$file\" != \"X\$progdir/\$program\"; }; then file=\"\$\$-\$program\" if test ! -d \"\$progdir\"; then $MKDIR \"\$progdir\" else $RM \"\$progdir/\$file\" fi" $ECHO "\ # relink executable if necessary if test -n \"\$relink_command\"; then if relink_command_output=\`eval \$relink_command 2>&1\`; then : else \$ECHO \"\$relink_command_output\" >&2 $RM \"\$progdir/\$file\" exit 1 fi fi $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null || { $RM \"\$progdir/\$program\"; $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; } $RM \"\$progdir/\$file\" fi" else $ECHO "\ program='$outputname' progdir=\"\$thisdir/$objdir\" " fi $ECHO "\ if test -f \"\$progdir/\$program\"; then" # fixup the dll searchpath if we need to. # # Fix the DLL searchpath if we need to. Do this before prepending # to shlibpath, because on Windows, both are PATH and uninstalled # libraries must come first. if test -n "$dllsearchpath"; then $ECHO "\ # Add the dll search path components to the executable PATH PATH=$dllsearchpath:\$PATH " fi # Export our shlibpath_var if we have one. if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then $ECHO "\ # Add our own library path to $shlibpath_var $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" # Some systems cannot cope with colon-terminated $shlibpath_var # The second colon is a workaround for a bug in BeOS R4 sed $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` export $shlibpath_var " fi $ECHO "\ if test \"\$libtool_execute_magic\" != \"$magic\"; then # Run the actual program with our arguments. func_exec_program \${1+\"\$@\"} fi else # The program doesn't exist. \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2 \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 exit 1 fi fi\ " } # func_emit_cwrapperexe_src # emit the source code for a wrapper executable on stdout # Must ONLY be called from within func_mode_link because # it depends on a number of variable set therein. func_emit_cwrapperexe_src () { cat <<EOF /* $cwrappersource - temporary wrapper executable for $objdir/$outputname Generated by $PROGRAM (GNU $PACKAGE) $VERSION The $output program cannot be directly executed until all the libtool libraries that it depends on are installed. This wrapper executable should never be moved out of the build directory. If it is, it will not operate correctly. */ EOF cat <<"EOF" #ifdef _MSC_VER # define _CRT_SECURE_NO_DEPRECATE 1 #endif #include <stdio.h> #include <stdlib.h> #ifdef _MSC_VER # include <direct.h> # include <process.h> # include <io.h> #else # include <unistd.h> # include <stdint.h> # ifdef __CYGWIN__ # include <io.h> # endif #endif #include <malloc.h> #include <stdarg.h> #include <assert.h> #include <string.h> #include <ctype.h> #include <errno.h> #include <fcntl.h> #include <sys/stat.h> #define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) /* declarations of non-ANSI functions */ #if defined __MINGW32__ # ifdef __STRICT_ANSI__ int _putenv (const char *); # endif #elif defined __CYGWIN__ # ifdef __STRICT_ANSI__ char *realpath (const char *, char *); int putenv (char *); int setenv (const char *, const char *, int); # endif /* #elif defined other_platform || defined ... */ #endif /* portability defines, excluding path handling macros */ #if defined _MSC_VER # define setmode _setmode # define stat _stat # define chmod _chmod # define getcwd _getcwd # define putenv _putenv # define S_IXUSR _S_IEXEC #elif defined __MINGW32__ # define setmode _setmode # define stat _stat # define chmod _chmod # define getcwd _getcwd # define putenv _putenv #elif defined __CYGWIN__ # define HAVE_SETENV # define FOPEN_WB "wb" /* #elif defined other platforms ... */ #endif #if defined PATH_MAX # define LT_PATHMAX PATH_MAX #elif defined MAXPATHLEN # define LT_PATHMAX MAXPATHLEN #else # define LT_PATHMAX 1024 #endif #ifndef S_IXOTH # define S_IXOTH 0 #endif #ifndef S_IXGRP # define S_IXGRP 0 #endif /* path handling portability macros */ #ifndef DIR_SEPARATOR # define DIR_SEPARATOR '/' # define PATH_SEPARATOR ':' #endif #if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \ defined __OS2__ # define HAVE_DOS_BASED_FILE_SYSTEM # define FOPEN_WB "wb" # ifndef DIR_SEPARATOR_2 # define DIR_SEPARATOR_2 '\\' # endif # ifndef PATH_SEPARATOR_2 # define PATH_SEPARATOR_2 ';' # endif #endif #ifndef DIR_SEPARATOR_2 # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) #else /* DIR_SEPARATOR_2 */ # define IS_DIR_SEPARATOR(ch) \ (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) #endif /* DIR_SEPARATOR_2 */ #ifndef PATH_SEPARATOR_2 # define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) #else /* PATH_SEPARATOR_2 */ # define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) #endif /* PATH_SEPARATOR_2 */ #ifndef FOPEN_WB # define FOPEN_WB "w" #endif #ifndef _O_BINARY # define _O_BINARY 0 #endif #define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) #define XFREE(stale) do { \ if (stale) { free (stale); stale = 0; } \ } while (0) #if defined LT_DEBUGWRAPPER static int lt_debug = 1; #else static int lt_debug = 0; #endif const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ void *xmalloc (size_t num); char *xstrdup (const char *string); const char *base_name (const char *name); char *find_executable (const char *wrapper); char *chase_symlinks (const char *pathspec); int make_executable (const char *path); int check_executable (const char *path); char *strendzap (char *str, const char *pat); void lt_debugprintf (const char *file, int line, const char *fmt, ...); void lt_fatal (const char *file, int line, const char *message, ...); static const char *nonnull (const char *s); static const char *nonempty (const char *s); void lt_setenv (const char *name, const char *value); char *lt_extend_str (const char *orig_value, const char *add, int to_end); void lt_update_exe_path (const char *name, const char *value); void lt_update_lib_path (const char *name, const char *value); char **prepare_spawn (char **argv); void lt_dump_script (FILE *f); EOF cat <<EOF #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5) # define externally_visible volatile #else # define externally_visible __attribute__((externally_visible)) volatile #endif externally_visible const char * MAGIC_EXE = "$magic_exe"; const char * LIB_PATH_VARNAME = "$shlibpath_var"; EOF if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then func_to_host_path "$temp_rpath" cat <<EOF const char * LIB_PATH_VALUE = "$func_to_host_path_result"; EOF else cat <<"EOF" const char * LIB_PATH_VALUE = ""; EOF fi if test -n "$dllsearchpath"; then func_to_host_path "$dllsearchpath:" cat <<EOF const char * EXE_PATH_VARNAME = "PATH"; const char * EXE_PATH_VALUE = "$func_to_host_path_result"; EOF else cat <<"EOF" const char * EXE_PATH_VARNAME = ""; const char * EXE_PATH_VALUE = ""; EOF fi if test yes = "$fast_install"; then cat <<EOF const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */ EOF else cat <<EOF const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */ EOF fi cat <<"EOF" #define LTWRAPPER_OPTION_PREFIX "--lt-" static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX; static const char *dumpscript_opt = LTWRAPPER_OPTION_PREFIX "dump-script"; static const char *debug_opt = LTWRAPPER_OPTION_PREFIX "debug"; int main (int argc, char *argv[]) { char **newargz; int newargc; char *tmp_pathspec; char *actual_cwrapper_path; char *actual_cwrapper_name; char *target_name; char *lt_argv_zero; int rval = 127; int i; program_name = (char *) xstrdup (base_name (argv[0])); newargz = XMALLOC (char *, (size_t) argc + 1); /* very simple arg parsing; don't want to rely on getopt * also, copy all non cwrapper options to newargz, except * argz[0], which is handled differently */ newargc=0; for (i = 1; i < argc; i++) { if (STREQ (argv[i], dumpscript_opt)) { EOF case $host in *mingw* | *cygwin* ) # make stdout use "unix" line endings echo " setmode(1,_O_BINARY);" ;; esac cat <<"EOF" lt_dump_script (stdout); return 0; } if (STREQ (argv[i], debug_opt)) { lt_debug = 1; continue; } if (STREQ (argv[i], ltwrapper_option_prefix)) { /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX namespace, but it is not one of the ones we know about and have already dealt with, above (inluding dump-script), then report an error. Otherwise, targets might begin to believe they are allowed to use options in the LTWRAPPER_OPTION_PREFIX namespace. The first time any user complains about this, we'll need to make LTWRAPPER_OPTION_PREFIX a configure-time option or a configure.ac-settable value. */ lt_fatal (__FILE__, __LINE__, "unrecognized %s option: '%s'", ltwrapper_option_prefix, argv[i]); } /* otherwise ... */ newargz[++newargc] = xstrdup (argv[i]); } newargz[++newargc] = NULL; EOF cat <<EOF /* The GNU banner must be the first non-error debug message */ lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE) $VERSION\n"); EOF cat <<"EOF" lt_debugprintf (__FILE__, __LINE__, "(main) argv[0]: %s\n", argv[0]); lt_debugprintf (__FILE__, __LINE__, "(main) program_name: %s\n", program_name); tmp_pathspec = find_executable (argv[0]); if (tmp_pathspec == NULL) lt_fatal (__FILE__, __LINE__, "couldn't find %s", argv[0]); lt_debugprintf (__FILE__, __LINE__, "(main) found exe (before symlink chase) at: %s\n", tmp_pathspec); actual_cwrapper_path = chase_symlinks (tmp_pathspec); lt_debugprintf (__FILE__, __LINE__, "(main) found exe (after symlink chase) at: %s\n", actual_cwrapper_path); XFREE (tmp_pathspec); actual_cwrapper_name = xstrdup (base_name (actual_cwrapper_path)); strendzap (actual_cwrapper_path, actual_cwrapper_name); /* wrapper name transforms */ strendzap (actual_cwrapper_name, ".exe"); tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1); XFREE (actual_cwrapper_name); actual_cwrapper_name = tmp_pathspec; tmp_pathspec = 0; /* target_name transforms -- use actual target program name; might have lt- prefix */ target_name = xstrdup (base_name (TARGET_PROGRAM_NAME)); strendzap (target_name, ".exe"); tmp_pathspec = lt_extend_str (target_name, ".exe", 1); XFREE (target_name); target_name = tmp_pathspec; tmp_pathspec = 0; lt_debugprintf (__FILE__, __LINE__, "(main) libtool target name: %s\n", target_name); EOF cat <<EOF newargz[0] = XMALLOC (char, (strlen (actual_cwrapper_path) + strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1)); strcpy (newargz[0], actual_cwrapper_path); strcat (newargz[0], "$objdir"); strcat (newargz[0], "/"); EOF cat <<"EOF" /* stop here, and copy so we don't have to do this twice */ tmp_pathspec = xstrdup (newargz[0]); /* do NOT want the lt- prefix here, so use actual_cwrapper_name */ strcat (newargz[0], actual_cwrapper_name); /* DO want the lt- prefix here if it exists, so use target_name */ lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1); XFREE (tmp_pathspec); tmp_pathspec = NULL; EOF case $host_os in mingw*) cat <<"EOF" { char* p; while ((p = strchr (newargz[0], '\\')) != NULL) { *p = '/'; } while ((p = strchr (lt_argv_zero, '\\')) != NULL) { *p = '/'; } } EOF ;; esac cat <<"EOF" XFREE (target_name); XFREE (actual_cwrapper_path); XFREE (actual_cwrapper_name); lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */ lt_setenv ("DUALCASE", "1"); /* for MSK sh */ /* Update the DLL searchpath. EXE_PATH_VALUE ($dllsearchpath) must be prepended before (that is, appear after) LIB_PATH_VALUE ($temp_rpath) because on Windows, both *_VARNAMEs are PATH but uninstalled libraries must come first. */ lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE); lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE); lt_debugprintf (__FILE__, __LINE__, "(main) lt_argv_zero: %s\n", nonnull (lt_argv_zero)); for (i = 0; i < newargc; i++) { lt_debugprintf (__FILE__, __LINE__, "(main) newargz[%d]: %s\n", i, nonnull (newargz[i])); } EOF case $host_os in mingw*) cat <<"EOF" /* execv doesn't actually work on mingw as expected on unix */ newargz = prepare_spawn (newargz); rval = (int) _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz); if (rval == -1) { /* failed to start process */ lt_debugprintf (__FILE__, __LINE__, "(main) failed to launch target \"%s\": %s\n", lt_argv_zero, nonnull (strerror (errno))); return 127; } return rval; EOF ;; *) cat <<"EOF" execv (lt_argv_zero, newargz); return rval; /* =127, but avoids unused variable warning */ EOF ;; esac cat <<"EOF" } void * xmalloc (size_t num) { void *p = (void *) malloc (num); if (!p) lt_fatal (__FILE__, __LINE__, "memory exhausted"); return p; } char * xstrdup (const char *string) { return string ? strcpy ((char *) xmalloc (strlen (string) + 1), string) : NULL; } const char * base_name (const char *name) { const char *base; #if defined HAVE_DOS_BASED_FILE_SYSTEM /* Skip over the disk name in MSDOS pathnames. */ if (isalpha ((unsigned char) name[0]) && name[1] == ':') name += 2; #endif for (base = name; *name; name++) if (IS_DIR_SEPARATOR (*name)) base = name + 1; return base; } int check_executable (const char *path) { struct stat st; lt_debugprintf (__FILE__, __LINE__, "(check_executable): %s\n", nonempty (path)); if ((!path) || (!*path)) return 0; if ((stat (path, &st) >= 0) && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) return 1; else return 0; } int make_executable (const char *path) { int rval = 0; struct stat st; lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", nonempty (path)); if ((!path) || (!*path)) return 0; if (stat (path, &st) >= 0) { rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); } return rval; } /* Searches for the full path of the wrapper. Returns newly allocated full path name if found, NULL otherwise Does not chase symlinks, even on platforms that support them. */ char * find_executable (const char *wrapper) { int has_slash = 0; const char *p; const char *p_next; /* static buffer for getcwd */ char tmp[LT_PATHMAX + 1]; size_t tmp_len; char *concat_name; lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", nonempty (wrapper)); if ((wrapper == NULL) || (*wrapper == '\0')) return NULL; /* Absolute path? */ #if defined HAVE_DOS_BASED_FILE_SYSTEM if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') { concat_name = xstrdup (wrapper); if (check_executable (concat_name)) return concat_name; XFREE (concat_name); } else { #endif if (IS_DIR_SEPARATOR (wrapper[0])) { concat_name = xstrdup (wrapper); if (check_executable (concat_name)) return concat_name; XFREE (concat_name); } #if defined HAVE_DOS_BASED_FILE_SYSTEM } #endif for (p = wrapper; *p; p++) if (*p == '/') { has_slash = 1; break; } if (!has_slash) { /* no slashes; search PATH */ const char *path = getenv ("PATH"); if (path != NULL) { for (p = path; *p; p = p_next) { const char *q; size_t p_len; for (q = p; *q; q++) if (IS_PATH_SEPARATOR (*q)) break; p_len = (size_t) (q - p); p_next = (*q == '\0' ? q : q + 1); if (p_len == 0) { /* empty path: current directory */ if (getcwd (tmp, LT_PATHMAX) == NULL) lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", nonnull (strerror (errno))); tmp_len = strlen (tmp); concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); memcpy (concat_name, tmp, tmp_len); concat_name[tmp_len] = '/'; strcpy (concat_name + tmp_len + 1, wrapper); } else { concat_name = XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); memcpy (concat_name, p, p_len); concat_name[p_len] = '/'; strcpy (concat_name + p_len + 1, wrapper); } if (check_executable (concat_name)) return concat_name; XFREE (concat_name); } } /* not found in PATH; assume curdir */ } /* Relative path | not found in path: prepend cwd */ if (getcwd (tmp, LT_PATHMAX) == NULL) lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", nonnull (strerror (errno))); tmp_len = strlen (tmp); concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); memcpy (concat_name, tmp, tmp_len); concat_name[tmp_len] = '/'; strcpy (concat_name + tmp_len + 1, wrapper); if (check_executable (concat_name)) return concat_name; XFREE (concat_name); return NULL; } char * chase_symlinks (const char *pathspec) { #ifndef S_ISLNK return xstrdup (pathspec); #else char buf[LT_PATHMAX]; struct stat s; char *tmp_pathspec = xstrdup (pathspec); char *p; int has_symlinks = 0; while (strlen (tmp_pathspec) && !has_symlinks) { lt_debugprintf (__FILE__, __LINE__, "checking path component for symlinks: %s\n", tmp_pathspec); if (lstat (tmp_pathspec, &s) == 0) { if (S_ISLNK (s.st_mode) != 0) { has_symlinks = 1; break; } /* search backwards for last DIR_SEPARATOR */ p = tmp_pathspec + strlen (tmp_pathspec) - 1; while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) p--; if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) { /* no more DIR_SEPARATORS left */ break; } *p = '\0'; } else { lt_fatal (__FILE__, __LINE__, "error accessing file \"%s\": %s", tmp_pathspec, nonnull (strerror (errno))); } } XFREE (tmp_pathspec); if (!has_symlinks) { return xstrdup (pathspec); } tmp_pathspec = realpath (pathspec, buf); if (tmp_pathspec == 0) { lt_fatal (__FILE__, __LINE__, "could not follow symlinks for %s", pathspec); } return xstrdup (tmp_pathspec); #endif } char * strendzap (char *str, const char *pat) { size_t len, patlen; assert (str != NULL); assert (pat != NULL); len = strlen (str); patlen = strlen (pat); if (patlen <= len) { str += len - patlen; if (STREQ (str, pat)) *str = '\0'; } return str; } void lt_debugprintf (const char *file, int line, const char *fmt, ...) { va_list args; if (lt_debug) { (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); va_start (args, fmt); (void) vfprintf (stderr, fmt, args); va_end (args); } } static void lt_error_core (int exit_status, const char *file, int line, const char *mode, const char *message, va_list ap) { fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); vfprintf (stderr, message, ap); fprintf (stderr, ".\n"); if (exit_status >= 0) exit (exit_status); } void lt_fatal (const char *file, int line, const char *message, ...) { va_list ap; va_start (ap, message); lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); va_end (ap); } static const char * nonnull (const char *s) { return s ? s : "(null)"; } static const char * nonempty (const char *s) { return (s && !*s) ? "(empty)" : nonnull (s); } void lt_setenv (const char *name, const char *value) { lt_debugprintf (__FILE__, __LINE__, "(lt_setenv) setting '%s' to '%s'\n", nonnull (name), nonnull (value)); { #ifdef HAVE_SETENV /* always make a copy, for consistency with !HAVE_SETENV */ char *str = xstrdup (value); setenv (name, str, 1); #else size_t len = strlen (name) + 1 + strlen (value) + 1; char *str = XMALLOC (char, len); sprintf (str, "%s=%s", name, value); if (putenv (str) != EXIT_SUCCESS) { XFREE (str); } #endif } } char * lt_extend_str (const char *orig_value, const char *add, int to_end) { char *new_value; if (orig_value && *orig_value) { size_t orig_value_len = strlen (orig_value); size_t add_len = strlen (add); new_value = XMALLOC (char, add_len + orig_value_len + 1); if (to_end) { strcpy (new_value, orig_value); strcpy (new_value + orig_value_len, add); } else { strcpy (new_value, add); strcpy (new_value + add_len, orig_value); } } else { new_value = xstrdup (add); } return new_value; } void lt_update_exe_path (const char *name, const char *value) { lt_debugprintf (__FILE__, __LINE__, "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", nonnull (name), nonnull (value)); if (name && *name && value && *value) { char *new_value = lt_extend_str (getenv (name), value, 0); /* some systems can't cope with a ':'-terminated path #' */ size_t len = strlen (new_value); while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1])) { new_value[--len] = '\0'; } lt_setenv (name, new_value); XFREE (new_value); } } void lt_update_lib_path (const char *name, const char *value) { lt_debugprintf (__FILE__, __LINE__, "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", nonnull (name), nonnull (value)); if (name && *name && value && *value) { char *new_value = lt_extend_str (getenv (name), value, 0); lt_setenv (name, new_value); XFREE (new_value); } } EOF case $host_os in mingw*) cat <<"EOF" /* Prepares an argument vector before calling spawn(). Note that spawn() does not by itself call the command interpreter (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); GetVersionEx(&v); v.dwPlatformId == VER_PLATFORM_WIN32_NT; }) ? "cmd.exe" : "command.com"). Instead it simply concatenates the arguments, separated by ' ', and calls CreateProcess(). We must quote the arguments since Win32 CreateProcess() interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a special way: - Space and tab are interpreted as delimiters. They are not treated as delimiters if they are surrounded by double quotes: "...". - Unescaped double quotes are removed from the input. Their only effect is that within double quotes, space and tab are treated like normal characters. - Backslashes not followed by double quotes are not special. - But 2*n+1 backslashes followed by a double quote become n backslashes followed by a double quote (n >= 0): \" -> " \\\" -> \" \\\\\" -> \\" */ #define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" #define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" char ** prepare_spawn (char **argv) { size_t argc; char **new_argv; size_t i; /* Count number of arguments. */ for (argc = 0; argv[argc] != NULL; argc++) ; /* Allocate new argument vector. */ new_argv = XMALLOC (char *, argc + 1); /* Put quoted arguments into the new argument vector. */ for (i = 0; i < argc; i++) { const char *string = argv[i]; if (string[0] == '\0') new_argv[i] = xstrdup ("\"\""); else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) { int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); size_t length; unsigned int backslashes; const char *s; char *quoted_string; char *p; length = 0; backslashes = 0; if (quote_around) length++; for (s = string; *s != '\0'; s++) { char c = *s; if (c == '"') length += backslashes + 1; length++; if (c == '\\') backslashes++; else backslashes = 0; } if (quote_around) length += backslashes + 1; quoted_string = XMALLOC (char, length + 1); p = quoted_string; backslashes = 0; if (quote_around) *p++ = '"'; for (s = string; *s != '\0'; s++) { char c = *s; if (c == '"') { unsigned int j; for (j = backslashes + 1; j > 0; j--) *p++ = '\\'; } *p++ = c; if (c == '\\') backslashes++; else backslashes = 0; } if (quote_around) { unsigned int j; for (j = backslashes; j > 0; j--) *p++ = '\\'; *p++ = '"'; } *p = '\0'; new_argv[i] = quoted_string; } else new_argv[i] = (char *) string; } new_argv[argc] = NULL; return new_argv; } EOF ;; esac cat <<"EOF" void lt_dump_script (FILE* f) { EOF func_emit_wrapper yes | $SED -n -e ' s/^\(.\{79\}\)\(..*\)/\1\ \2/ h s/\([\\"]\)/\\\1/g s/$/\\n/ s/\([^\n]*\).*/ fputs ("\1", f);/p g D' cat <<"EOF" } EOF } # end: func_emit_cwrapperexe_src # func_win32_import_lib_p ARG # True if ARG is an import lib, as indicated by $file_magic_cmd func_win32_import_lib_p () { $debug_cmd case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in *import*) : ;; *) false ;; esac } # func_suncc_cstd_abi # !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!! # Several compiler flags select an ABI that is incompatible with the # Cstd library. Avoid specifying it if any are in CXXFLAGS. func_suncc_cstd_abi () { $debug_cmd case " $compile_command " in *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*) suncc_use_cstd_abi=no ;; *) suncc_use_cstd_abi=yes ;; esac } # func_mode_link arg... func_mode_link () { $debug_cmd case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) # It is impossible to link a dll without this setting, and # we shouldn't force the makefile maintainer to figure out # what system we are compiling for in order to pass an extra # flag for every libtool invocation. # allow_undefined=no # FIXME: Unfortunately, there are problems with the above when trying # to make a dll that has undefined symbols, in which case not # even a static library is built. For now, we need to specify # -no-undefined on the libtool link line when we can be certain # that all symbols are satisfied, otherwise we get a static library. allow_undefined=yes ;; *) allow_undefined=yes ;; esac libtool_args=$nonopt base_compile="$nonopt $@" compile_command=$nonopt finalize_command=$nonopt compile_rpath= finalize_rpath= compile_shlibpath= finalize_shlibpath= convenience= old_convenience= deplibs= old_deplibs= compiler_flags= linker_flags= dllsearchpath= lib_search_path=`pwd` inst_prefix_dir= new_inherited_linker_flags= avoid_version=no bindir= dlfiles= dlprefiles= dlself=no export_dynamic=no export_symbols= export_symbols_regex= generated= libobjs= ltlibs= module=no no_install=no objs= os2dllname= non_pic_objects= precious_files_regex= prefer_static_libs=no preload=false prev= prevarg= release= rpath= xrpath= perm_rpath= temp_rpath= thread_safe=no vinfo= vinfo_number=no weak_libs= single_module=$wl-single_module func_infer_tag $base_compile # We need to know -static, to get the right output filenames. for arg do case $arg in -shared) test yes != "$build_libtool_libs" \ && func_fatal_configuration "cannot build a shared library" build_old_libs=no break ;; -all-static | -static | -static-libtool-libs) case $arg in -all-static) if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then func_warning "complete static linking is impossible in this configuration" fi if test -n "$link_static_flag"; then dlopen_self=$dlopen_self_static fi prefer_static_libs=yes ;; -static) if test -z "$pic_flag" && test -n "$link_static_flag"; then dlopen_self=$dlopen_self_static fi prefer_static_libs=built ;; -static-libtool-libs) if test -z "$pic_flag" && test -n "$link_static_flag"; then dlopen_self=$dlopen_self_static fi prefer_static_libs=yes ;; esac build_libtool_libs=no build_old_libs=yes break ;; esac done # See if our shared archives depend on static archives. test -n "$old_archive_from_new_cmds" && build_old_libs=yes # Go through the arguments, transforming them on the way. while test "$#" -gt 0; do arg=$1 shift func_quote_for_eval "$arg" qarg=$func_quote_for_eval_unquoted_result func_append libtool_args " $func_quote_for_eval_result" # If the previous option needs an argument, assign it. if test -n "$prev"; then case $prev in output) func_append compile_command " @OUTPUT@" func_append finalize_command " @OUTPUT@" ;; esac case $prev in bindir) bindir=$arg prev= continue ;; dlfiles|dlprefiles) $preload || { # Add the symbol object into the linking commands. func_append compile_command " @SYMFILE@" func_append finalize_command " @SYMFILE@" preload=: } case $arg in *.la | *.lo) ;; # We handle these cases below. force) if test no = "$dlself"; then dlself=needless export_dynamic=yes fi prev= continue ;; self) if test dlprefiles = "$prev"; then dlself=yes elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then dlself=yes else dlself=needless export_dynamic=yes fi prev= continue ;; *) if test dlfiles = "$prev"; then func_append dlfiles " $arg" else func_append dlprefiles " $arg" fi prev= continue ;; esac ;; expsyms) export_symbols=$arg test -f "$arg" \ || func_fatal_error "symbol file '$arg' does not exist" prev= continue ;; expsyms_regex) export_symbols_regex=$arg prev= continue ;; framework) case $host in *-*-darwin*) case "$deplibs " in *" $qarg.ltframework "*) ;; *) func_append deplibs " $qarg.ltframework" # this is fixed later ;; esac ;; esac prev= continue ;; inst_prefix) inst_prefix_dir=$arg prev= continue ;; mllvm) # Clang does not use LLVM to link, so we can simply discard any # '-mllvm $arg' options when doing the link step. prev= continue ;; objectlist) if test -f "$arg"; then save_arg=$arg moreargs= for fil in `cat "$save_arg"` do # func_append moreargs " $fil" arg=$fil # A libtool-controlled object. # Check to see that this really is a libtool object. if func_lalib_unsafe_p "$arg"; then pic_object= non_pic_object= # Read the .lo file func_source "$arg" if test -z "$pic_object" || test -z "$non_pic_object" || test none = "$pic_object" && test none = "$non_pic_object"; then func_fatal_error "cannot find name of object for '$arg'" fi # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result if test none != "$pic_object"; then # Prepend the subdirectory the object is found in. pic_object=$xdir$pic_object if test dlfiles = "$prev"; then if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then func_append dlfiles " $pic_object" prev= continue else # If libtool objects are unsupported, then we need to preload. prev=dlprefiles fi fi # CHECK ME: I think I busted this. -Ossama if test dlprefiles = "$prev"; then # Preload the old-style object. func_append dlprefiles " $pic_object" prev= fi # A PIC object. func_append libobjs " $pic_object" arg=$pic_object fi # Non-PIC object. if test none != "$non_pic_object"; then # Prepend the subdirectory the object is found in. non_pic_object=$xdir$non_pic_object # A standard non-PIC object func_append non_pic_objects " $non_pic_object" if test -z "$pic_object" || test none = "$pic_object"; then arg=$non_pic_object fi else # If the PIC object exists, use it instead. # $xdir was prepended to $pic_object above. non_pic_object=$pic_object func_append non_pic_objects " $non_pic_object" fi else # Only an error if not doing a dry-run. if $opt_dry_run; then # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result func_lo2o "$arg" pic_object=$xdir$objdir/$func_lo2o_result non_pic_object=$xdir$func_lo2o_result func_append libobjs " $pic_object" func_append non_pic_objects " $non_pic_object" else func_fatal_error "'$arg' is not a valid libtool object" fi fi done else func_fatal_error "link input file '$arg' does not exist" fi arg=$save_arg prev= continue ;; os2dllname) os2dllname=$arg prev= continue ;; precious_regex) precious_files_regex=$arg prev= continue ;; release) release=-$arg prev= continue ;; rpath | xrpath) # We need an absolute path. case $arg in [\\/]* | [A-Za-z]:[\\/]*) ;; *) func_fatal_error "only absolute run-paths are allowed" ;; esac if test rpath = "$prev"; then case "$rpath " in *" $arg "*) ;; *) func_append rpath " $arg" ;; esac else case "$xrpath " in *" $arg "*) ;; *) func_append xrpath " $arg" ;; esac fi prev= continue ;; shrext) shrext_cmds=$arg prev= continue ;; weak) func_append weak_libs " $arg" prev= continue ;; xcclinker) func_append linker_flags " $qarg" func_append compiler_flags " $qarg" prev= func_append compile_command " $qarg" func_append finalize_command " $qarg" continue ;; xcompiler) func_append compiler_flags " $qarg" prev= func_append compile_command " $qarg" func_append finalize_command " $qarg" continue ;; xlinker) func_append linker_flags " $qarg" func_append compiler_flags " $wl$qarg" prev= func_append compile_command " $wl$qarg" func_append finalize_command " $wl$qarg" continue ;; *) eval "$prev=\"\$arg\"" prev= continue ;; esac fi # test -n "$prev" prevarg=$arg case $arg in -all-static) if test -n "$link_static_flag"; then # See comment for -static flag below, for more details. func_append compile_command " $link_static_flag" func_append finalize_command " $link_static_flag" fi continue ;; -allow-undefined) # FIXME: remove this flag sometime in the future. func_fatal_error "'-allow-undefined' must not be used because it is the default" ;; -avoid-version) avoid_version=yes continue ;; -bindir) prev=bindir continue ;; -dlopen) prev=dlfiles continue ;; -dlpreopen) prev=dlprefiles continue ;; -export-dynamic) export_dynamic=yes continue ;; -export-symbols | -export-symbols-regex) if test -n "$export_symbols" || test -n "$export_symbols_regex"; then func_fatal_error "more than one -exported-symbols argument is not allowed" fi if test X-export-symbols = "X$arg"; then prev=expsyms else prev=expsyms_regex fi continue ;; -framework) prev=framework continue ;; -inst-prefix-dir) prev=inst_prefix continue ;; 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then if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then func_append dlfiles " $pic_object" prev= continue else # If libtool objects are unsupported, then we need to preload. prev=dlprefiles fi fi # CHECK ME: I think I busted this. -Ossama if test dlprefiles = "$prev"; then # Preload the old-style object. func_append dlprefiles " $pic_object" prev= fi # A PIC object. func_append libobjs " $pic_object" arg=$pic_object } # Non-PIC object. if test none != "$non_pic_object"; then # Prepend the subdirectory the object is found in. non_pic_object=$xdir$non_pic_object # A standard non-PIC object func_append non_pic_objects " $non_pic_object" if test -z "$pic_object" || test none = "$pic_object"; then arg=$non_pic_object fi else # If the PIC object exists, use it instead. # $xdir was prepended to $pic_object above. non_pic_object=$pic_object func_append non_pic_objects " $non_pic_object" fi else # Only an error if not doing a dry-run. if $opt_dry_run; then # Extract subdirectory from the argument. func_dirname "$arg" "/" "" xdir=$func_dirname_result func_lo2o "$arg" pic_object=$xdir$objdir/$func_lo2o_result non_pic_object=$xdir$func_lo2o_result func_append libobjs " $pic_object" func_append non_pic_objects " $non_pic_object" else func_fatal_error "'$arg' is not a valid libtool object" fi fi ;; 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then eval arg=\"$export_dynamic_flag_spec\" func_append compile_command " $arg" func_append finalize_command " $arg" fi oldlibs= # calculate the name of the file, without its directory func_basename "$output" outputname=$func_basename_result libobjs_save=$libobjs if test -n "$shlibpath_var"; then # get the directories listed in $shlibpath_var eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\` else shlib_search_path= fi eval sys_lib_search_path=\"$sys_lib_search_path_spec\" eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\" # Definition is injected by LT_CONFIG during libtool generation. func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH" func_dirname "$output" "/" "" output_objdir=$func_dirname_result$objdir func_to_tool_file "$output_objdir/" tool_output_objdir=$func_to_tool_file_result # Create the object directory. func_mkdir_p "$output_objdir" # Determine the type of output case $output in "") func_fatal_help "you must specify an output file" ;; *.$libext) linkmode=oldlib ;; *.lo | *.$objext) linkmode=obj ;; *.la) linkmode=lib ;; *) linkmode=prog ;; # Anything else should be a program. esac specialdeplibs= libs= # Find all interdependent deplibs by searching for libraries # that are linked more than once (e.g. -la -lb -la) for deplib in $deplibs; do if $opt_preserve_dup_deps; then case "$libs " in *" $deplib "*) func_append specialdeplibs " $deplib" ;; esac fi func_append libs " $deplib" done if test lib = "$linkmode"; then libs="$predeps $libs $compiler_lib_search_path $postdeps" # Compute libraries that are listed more than once in $predeps # $postdeps and mark them as special (i.e., whose duplicates are # not to be eliminated). pre_post_deps= if $opt_duplicate_compiler_generated_deps; then for pre_post_dep in $predeps $postdeps; do case "$pre_post_deps " in *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;; esac func_append pre_post_deps " $pre_post_dep" done fi pre_post_deps= fi deplibs= newdependency_libs= newlib_search_path= need_relink=no # whether we're linking any uninstalled libtool libraries notinst_deplibs= # not-installed libtool libraries notinst_path= # paths that contain not-installed libtool libraries case $linkmode in lib) passes="conv dlpreopen link" for file in $dlfiles $dlprefiles; do case $file in *.la) ;; *) func_fatal_help "libraries can '-dlopen' only libtool libraries: $file" ;; esac done ;; prog) compile_deplibs= finalize_deplibs= alldeplibs=false newdlfiles= newdlprefiles= passes="conv scan dlopen dlpreopen link" ;; *) passes="conv" ;; esac for pass in $passes; do # The preopen pass in lib mode reverses $deplibs; put it back here # so that -L comes before libs that need it for instance... if test lib,link = "$linkmode,$pass"; then ## FIXME: Find the place where the list is rebuilt in the wrong ## order, and fix it there properly tmp_deplibs= for deplib in $deplibs; do tmp_deplibs="$deplib $tmp_deplibs" done deplibs=$tmp_deplibs fi if test lib,link = "$linkmode,$pass" || test prog,scan = "$linkmode,$pass"; then libs=$deplibs deplibs= fi if test prog = "$linkmode"; then case $pass in dlopen) libs=$dlfiles ;; dlpreopen) libs=$dlprefiles ;; link) libs="$deplibs %DEPLIBS% $dependency_libs" ;; esac fi if test lib,dlpreopen = "$linkmode,$pass"; then # Collect and forward deplibs of preopened libtool libs for lib in $dlprefiles; do # Ignore non-libtool-libs dependency_libs= func_resolve_sysroot "$lib" case $lib in *.la) func_source "$func_resolve_sysroot_result" ;; esac # Collect preopened libtool deplibs, except any this library # has declared as weak libs for deplib in $dependency_libs; do func_basename "$deplib" deplib_base=$func_basename_result case " $weak_libs " in *" $deplib_base "*) ;; *) func_append deplibs " $deplib" ;; esac done done libs=$dlprefiles fi if test dlopen = "$pass"; then # Collect dlpreopened libraries save_deplibs=$deplibs deplibs= fi for deplib in $libs; do lib= found=false case $deplib in -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \ |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*) if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else func_append compiler_flags " $deplib" if test lib = "$linkmode"; then case "$new_inherited_linker_flags " in *" $deplib "*) ;; * ) func_append new_inherited_linker_flags " $deplib" ;; esac fi fi continue ;; -l*) if test lib != "$linkmode" && test prog != "$linkmode"; then func_warning "'-l' is ignored for archives/objects" continue fi func_stripname '-l' '' "$deplib" name=$func_stripname_result if test lib = "$linkmode"; then searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" else searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" fi for searchdir in $searchdirs; do for search_ext in .la $std_shrext .so .a; do # Search the libtool library lib=$searchdir/lib$name$search_ext if test -f "$lib"; then if test .la = "$search_ext"; then found=: else found=false fi break 2 fi done done if $found; then # deplib is a libtool library # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, # We need to do some special things here, and not later. if test yes = "$allow_libtool_libs_with_static_runtimes"; then case " $predeps $postdeps " in *" $deplib "*) if func_lalib_p "$lib"; then library_names= old_library= func_source "$lib" for l in $old_library $library_names; do ll=$l done if test "X$ll" = "X$old_library"; then # only static version available found=false func_dirname "$lib" "" "." ladir=$func_dirname_result lib=$ladir/$old_library if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else deplibs="$deplib $deplibs" test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" fi continue fi fi ;; *) ;; esac fi else # deplib doesn't seem to be a libtool library if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else deplibs="$deplib $deplibs" test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" fi continue fi ;; # -l *.ltframework) if test prog,link = "$linkmode,$pass"; then compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else deplibs="$deplib $deplibs" if test lib = "$linkmode"; then case "$new_inherited_linker_flags " in *" $deplib "*) ;; * ) func_append new_inherited_linker_flags " $deplib" ;; esac fi fi continue ;; -L*) case $linkmode in lib) deplibs="$deplib $deplibs" test conv = "$pass" && continue newdependency_libs="$deplib $newdependency_libs" func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result" func_append newlib_search_path " $func_resolve_sysroot_result" ;; prog) if test conv = "$pass"; then deplibs="$deplib $deplibs" continue fi if test scan = "$pass"; then deplibs="$deplib $deplibs" else compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" fi func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result" func_append newlib_search_path " $func_resolve_sysroot_result" ;; *) func_warning "'-L' is ignored for archives/objects" ;; esac # linkmode continue ;; # -L -R*) if test link = "$pass"; then func_stripname '-R' '' "$deplib" func_resolve_sysroot "$func_stripname_result" dir=$func_resolve_sysroot_result # Make sure the xrpath contains only unique directories. case "$xrpath " in *" $dir "*) ;; *) func_append xrpath " $dir" ;; esac fi deplibs="$deplib $deplibs" continue ;; *.la) func_resolve_sysroot "$deplib" lib=$func_resolve_sysroot_result ;; *.$libext) if test conv = "$pass"; then deplibs="$deplib $deplibs" continue fi case $linkmode in lib) # Linking convenience modules into shared libraries is allowed, # but linking other static libraries is non-portable. case " $dlpreconveniencelibs " in *" $deplib "*) ;; *) valid_a_lib=false case $deplibs_check_method in match_pattern*) set dummy $deplibs_check_method; shift match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ | $EGREP "$match_pattern_regex" > /dev/null; then valid_a_lib=: fi ;; pass_all) valid_a_lib=: ;; esac if $valid_a_lib; then echo $ECHO "*** Warning: Linking the shared library $output against the" $ECHO "*** static library $deplib is not portable!" deplibs="$deplib $deplibs" else echo $ECHO "*** Warning: Trying to link with static lib archive $deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because the file extensions .$libext of this argument makes me believe" echo "*** that it is just a static archive that I should not use here." fi ;; esac continue ;; prog) if test link != "$pass"; then deplibs="$deplib $deplibs" else compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" fi continue ;; esac # linkmode ;; # *.$libext *.lo | *.$objext) if test conv = "$pass"; then deplibs="$deplib $deplibs" elif test prog = "$linkmode"; then if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then # If there is no dlopen support or we're linking statically, # we need to preload. func_append newdlprefiles " $deplib" compile_deplibs="$deplib $compile_deplibs" finalize_deplibs="$deplib $finalize_deplibs" else func_append newdlfiles " $deplib" fi fi continue ;; %DEPLIBS%) alldeplibs=: continue ;; esac # case $deplib $found || test -f "$lib" \ || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'" # Check to see that this really is a libtool archive. func_lalib_unsafe_p "$lib" \ || func_fatal_error "'$lib' is not a valid libtool archive" func_dirname "$lib" "" "." ladir=$func_dirname_result dlname= dlopen= dlpreopen= libdir= library_names= old_library= inherited_linker_flags= # If the library was installed with an old release of libtool, # it will not redefine variables installed, or shouldnotlink installed=yes shouldnotlink=no avoidtemprpath= # Read the .la file func_source "$lib" # Convert "-framework foo" to "foo.ltframework" if test -n "$inherited_linker_flags"; then tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do case " $new_inherited_linker_flags " in *" $tmp_inherited_linker_flag "*) ;; *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; esac done fi dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` if test lib,link = "$linkmode,$pass" || test prog,scan = "$linkmode,$pass" || { test prog != "$linkmode" && test lib != "$linkmode"; }; then test -n "$dlopen" && func_append dlfiles " $dlopen" test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" fi if test conv = "$pass"; then # Only check for convenience libraries deplibs="$lib $deplibs" if test -z "$libdir"; then if test -z "$old_library"; then func_fatal_error "cannot find name of link library for '$lib'" fi # It is a libtool convenience library, so add in its objects. func_append convenience " $ladir/$objdir/$old_library" func_append old_convenience " $ladir/$objdir/$old_library" elif test prog != "$linkmode" && test lib != "$linkmode"; then func_fatal_error "'$lib' is not a convenience library" fi tmp_libs= for deplib in $dependency_libs; do deplibs="$deplib $deplibs" if $opt_preserve_dup_deps; then case "$tmp_libs " in *" $deplib "*) func_append specialdeplibs " $deplib" ;; esac fi func_append tmp_libs " $deplib" done continue fi # $pass = conv # Get the name of the library we link against. linklib= if test -n "$old_library" && { test yes = "$prefer_static_libs" || test built,no = "$prefer_static_libs,$installed"; }; then linklib=$old_library else for l in $old_library $library_names; do linklib=$l done fi if test -z "$linklib"; then func_fatal_error "cannot find name of link library for '$lib'" fi # This library was specified with -dlopen. if test dlopen = "$pass"; then test -z "$libdir" \ && func_fatal_error "cannot -dlopen a convenience library: '$lib'" if test -z "$dlname" || test yes != "$dlopen_support" || test no = "$build_libtool_libs" then # If there is no dlname, no dlopen support or we're linking # statically, we need to preload. We also need to preload any # dependent libraries so libltdl's deplib preloader doesn't # bomb out in the load deplibs phase. func_append dlprefiles " $lib $dependency_libs" else func_append newdlfiles " $lib" fi continue fi # $pass = dlopen # We need an absolute path. case $ladir in [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;; *) abs_ladir=`cd "$ladir" && pwd` if test -z "$abs_ladir"; then func_warning "cannot determine absolute directory name of '$ladir'" func_warning "passing it literally to the linker, although it might fail" abs_ladir=$ladir fi ;; esac func_basename "$lib" laname=$func_basename_result # Find the relevant object directory and library name. if test yes = "$installed"; then if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then func_warning "library '$lib' was moved." dir=$ladir absdir=$abs_ladir libdir=$abs_ladir else dir=$lt_sysroot$libdir absdir=$lt_sysroot$libdir fi test yes = "$hardcode_automatic" && avoidtemprpath=yes else if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then dir=$ladir absdir=$abs_ladir # Remove this search path later func_append notinst_path " $abs_ladir" else dir=$ladir/$objdir absdir=$abs_ladir/$objdir # Remove this search path later func_append notinst_path " $abs_ladir" fi fi # $installed = yes func_stripname 'lib' '.la' "$laname" name=$func_stripname_result # This library was specified with -dlpreopen. if test dlpreopen = "$pass"; then if test -z "$libdir" && test prog = "$linkmode"; then func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'" fi case $host in # special handling for platforms with PE-DLLs. *cygwin* | *mingw* | *cegcc* ) # Linker will automatically link against shared library if both # static and shared are present. Therefore, ensure we extract # symbols from the import library if a shared library is present # (otherwise, the dlopen module name will be incorrect). We do # this by putting the import library name into $newdlprefiles. # We recover the dlopen module name by 'saving' the la file # name in a special purpose variable, and (later) extracting the # dlname from the la file. if test -n "$dlname"; then func_tr_sh "$dir/$linklib" eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" func_append newdlprefiles " $dir/$linklib" else func_append newdlprefiles " $dir/$old_library" # Keep a list of preopened convenience libraries to check # that they are being used correctly in the link pass. test -z "$libdir" && \ func_append dlpreconveniencelibs " $dir/$old_library" fi ;; * ) # Prefer using a static library (so that no silly _DYNAMIC symbols # are required to link). if test -n "$old_library"; then func_append newdlprefiles " $dir/$old_library" # Keep a list of preopened convenience libraries to check # that they are being used correctly in the link pass. test -z "$libdir" && \ func_append dlpreconveniencelibs " $dir/$old_library" # Otherwise, use the dlname, so that lt_dlopen finds it. elif test -n "$dlname"; then func_append newdlprefiles " $dir/$dlname" else func_append newdlprefiles " $dir/$linklib" fi ;; esac fi # $pass = dlpreopen if test -z "$libdir"; then # Link the convenience library if test lib = "$linkmode"; then deplibs="$dir/$old_library $deplibs" elif test prog,link = "$linkmode,$pass"; then compile_deplibs="$dir/$old_library $compile_deplibs" finalize_deplibs="$dir/$old_library $finalize_deplibs" else deplibs="$lib $deplibs" # used for prog,scan pass fi continue fi if test prog = "$linkmode" && test link != "$pass"; then func_append newlib_search_path " $ladir" deplibs="$lib $deplibs" linkalldeplibs=false if test no != "$link_all_deplibs" || test -z "$library_names" || test no = "$build_libtool_libs"; then linkalldeplibs=: fi tmp_libs= for deplib in $dependency_libs; do case $deplib in -L*) func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result" func_append newlib_search_path " $func_resolve_sysroot_result" ;; esac # Need to link against all dependency_libs? if $linkalldeplibs; then deplibs="$deplib $deplibs" else # Need to hardcode shared library paths # or/and link against static libraries newdependency_libs="$deplib $newdependency_libs" fi if $opt_preserve_dup_deps; then case "$tmp_libs " in *" $deplib "*) func_append specialdeplibs " $deplib" ;; esac fi func_append tmp_libs " $deplib" done # for deplib continue fi # $linkmode = prog... if test prog,link = "$linkmode,$pass"; then if test -n "$library_names" && { { test no = "$prefer_static_libs" || test built,yes = "$prefer_static_libs,$installed"; } || test -z "$old_library"; }; then # We need to hardcode the library path if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then # Make sure the rpath contains only unique directories. case $temp_rpath: in *"$absdir:"*) ;; *) func_append temp_rpath "$absdir:" ;; esac fi # Hardcode the library path. # Skip directories that are in the system default run-time # search path. case " $sys_lib_dlsearch_path " in *" $absdir "*) ;; *) case "$compile_rpath " in *" $absdir "*) ;; *) func_append compile_rpath " $absdir" ;; esac ;; esac case " $sys_lib_dlsearch_path " in *" $libdir "*) ;; *) case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac ;; esac fi # $linkmode,$pass = prog,link... if $alldeplibs && { test pass_all = "$deplibs_check_method" || { test yes = "$build_libtool_libs" && test -n "$library_names"; }; }; then # We only need to search for static libraries continue fi fi link_static=no # Whether the deplib will be linked statically use_static_libs=$prefer_static_libs if test built = "$use_static_libs" && test yes = "$installed"; then use_static_libs=no fi if test -n "$library_names" && { test no = "$use_static_libs" || test -z "$old_library"; }; then case $host in *cygwin* | *mingw* | *cegcc* | *os2*) # No point in relinking DLLs because paths are not encoded func_append notinst_deplibs " $lib" need_relink=no ;; *) if test no = "$installed"; then func_append notinst_deplibs " $lib" need_relink=yes fi ;; esac # This is a shared library # Warn about portability, can't link against -module's on some # systems (darwin). Don't bleat about dlopened modules though! dlopenmodule= for dlpremoduletest in $dlprefiles; do if test "X$dlpremoduletest" = "X$lib"; then dlopenmodule=$dlpremoduletest break fi done if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then echo if test prog = "$linkmode"; then $ECHO "*** Warning: Linking the executable $output against the loadable module" else $ECHO "*** Warning: Linking the shared library $output against the loadable module" fi $ECHO "*** $linklib is not portable!" fi if test lib = "$linkmode" && test yes = "$hardcode_into_libs"; then # Hardcode the library path. # Skip directories that are in the system default run-time # search path. case " $sys_lib_dlsearch_path " in *" $absdir "*) ;; *) case "$compile_rpath " in *" $absdir "*) ;; *) func_append compile_rpath " $absdir" ;; esac ;; esac case " $sys_lib_dlsearch_path " in *" $libdir "*) ;; *) case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac ;; esac fi if test -n "$old_archive_from_expsyms_cmds"; then # figure out the soname set dummy $library_names shift realname=$1 shift libname=`eval "\\$ECHO \"$libname_spec\""` # use dlname if we got it. it's perfectly good, no? if test -n "$dlname"; then soname=$dlname elif test -n "$soname_spec"; then # bleh windows case $host in *cygwin* | mingw* | *cegcc* | *os2*) func_arith $current - $age major=$func_arith_result versuffix=-$major ;; esac eval soname=\"$soname_spec\" else soname=$realname fi # Make a new name for the extract_expsyms_cmds to use soroot=$soname func_basename "$soroot" soname=$func_basename_result func_stripname 'lib' '.dll' "$soname" newlib=libimp-$func_stripname_result.a # If the library has no export list, then create one now if test -f "$output_objdir/$soname-def"; then : else func_verbose "extracting exported symbol list from '$soname'" func_execute_cmds "$extract_expsyms_cmds" 'exit $?' fi # Create $newlib if test -f "$output_objdir/$newlib"; then :; else func_verbose "generating import library for '$soname'" func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' fi # make sure the library variables are pointing to the new library dir=$output_objdir linklib=$newlib fi # test -n "$old_archive_from_expsyms_cmds" if test prog = "$linkmode" || test relink != "$opt_mode"; then add_shlibpath= add_dir= add= lib_linked=yes case $hardcode_action in immediate | unsupported) if test no = "$hardcode_direct"; then add=$dir/$linklib case $host in *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;; *-*-sysv4*uw2*) add_dir=-L$dir ;; *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ *-*-unixware7*) add_dir=-L$dir ;; *-*-darwin* ) # if the lib is a (non-dlopened) module then we cannot # link against it, someone is ignoring the earlier warnings if /usr/bin/file -L $add 2> /dev/null | $GREP ": [^:]* bundle" >/dev/null; then if test "X$dlopenmodule" != "X$lib"; then $ECHO "*** Warning: lib $linklib is a module, not a shared library" if test -z "$old_library"; then echo echo "*** And there doesn't seem to be a static archive available" echo "*** The link will probably fail, sorry" else add=$dir/$old_library fi elif test -n "$old_library"; then add=$dir/$old_library fi fi esac elif test no = "$hardcode_minus_L"; then case $host in *-*-sunos*) add_shlibpath=$dir ;; esac add_dir=-L$dir add=-l$name elif test no = "$hardcode_shlibpath_var"; then add_shlibpath=$dir add=-l$name else lib_linked=no fi ;; relink) if test yes = "$hardcode_direct" && test no = "$hardcode_direct_absolute"; then add=$dir/$linklib elif test yes = "$hardcode_minus_L"; then add_dir=-L$absdir # Try looking first in the location we're being installed to. if test -n "$inst_prefix_dir"; then case $libdir in [\\/]*) func_append add_dir " -L$inst_prefix_dir$libdir" ;; esac fi add=-l$name elif test yes = "$hardcode_shlibpath_var"; then add_shlibpath=$dir add=-l$name else lib_linked=no fi ;; *) lib_linked=no ;; esac if test yes != "$lib_linked"; then func_fatal_configuration "unsupported hardcode properties" fi if test -n "$add_shlibpath"; then case :$compile_shlibpath: in *":$add_shlibpath:"*) ;; *) func_append compile_shlibpath "$add_shlibpath:" ;; esac fi if test prog = "$linkmode"; then test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" test -n "$add" && compile_deplibs="$add $compile_deplibs" else test -n "$add_dir" && deplibs="$add_dir $deplibs" test -n "$add" && deplibs="$add $deplibs" if test yes != "$hardcode_direct" && test yes != "$hardcode_minus_L" && test yes = "$hardcode_shlibpath_var"; then case :$finalize_shlibpath: in *":$libdir:"*) ;; *) func_append finalize_shlibpath "$libdir:" ;; esac fi fi fi if test prog = "$linkmode" || test relink = "$opt_mode"; then add_shlibpath= add_dir= add= # Finalize command for both is simple: just hardcode it. if test yes = "$hardcode_direct" && test no = "$hardcode_direct_absolute"; then add=$libdir/$linklib elif test yes = "$hardcode_minus_L"; then add_dir=-L$libdir add=-l$name elif test yes = "$hardcode_shlibpath_var"; then case :$finalize_shlibpath: in *":$libdir:"*) ;; *) func_append finalize_shlibpath "$libdir:" ;; esac add=-l$name elif test yes = "$hardcode_automatic"; then if test -n "$inst_prefix_dir" && test -f "$inst_prefix_dir$libdir/$linklib"; then add=$inst_prefix_dir$libdir/$linklib else add=$libdir/$linklib fi else # We cannot seem to hardcode it, guess we'll fake it. add_dir=-L$libdir # Try looking first in the location we're being installed to. if test -n "$inst_prefix_dir"; then case $libdir in [\\/]*) func_append add_dir " -L$inst_prefix_dir$libdir" ;; esac fi add=-l$name fi if test prog = "$linkmode"; then test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" test -n "$add" && finalize_deplibs="$add $finalize_deplibs" else test -n "$add_dir" && deplibs="$add_dir $deplibs" test -n "$add" && deplibs="$add $deplibs" fi fi elif test prog = "$linkmode"; then # Here we assume that one of hardcode_direct or hardcode_minus_L # is not unsupported. This is valid on all known static and # shared platforms. if test unsupported != "$hardcode_direct"; then test -n "$old_library" && linklib=$old_library compile_deplibs="$dir/$linklib $compile_deplibs" finalize_deplibs="$dir/$linklib $finalize_deplibs" else compile_deplibs="-l$name -L$dir $compile_deplibs" finalize_deplibs="-l$name -L$dir $finalize_deplibs" fi elif test yes = "$build_libtool_libs"; then # Not a shared library if test pass_all != "$deplibs_check_method"; then # We're trying link a shared library against a static one # but the system doesn't support it. # Just print a warning and add the library to dependency_libs so # that the program can be linked against the static library. echo $ECHO "*** Warning: This system cannot link to static lib archive $lib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have." if test yes = "$module"; then echo "*** But as you try to build a module library, libtool will still create " echo "*** a static module, that should work as long as the dlopening application" echo "*** is linked with the -dlopen flag to resolve symbols at runtime." if test -z "$global_symbol_pipe"; then echo echo "*** However, this would only work if libtool was able to extract symbol" echo "*** lists from a program, using 'nm' or equivalent, but libtool could" echo "*** not find such a program. So, this module is probably useless." echo "*** 'nm' from GNU binutils and a full rebuild may help." fi if test no = "$build_old_libs"; then build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi fi else deplibs="$dir/$old_library $deplibs" link_static=yes fi fi # link shared/static library? if test lib = "$linkmode"; then if test -n "$dependency_libs" && { test yes != "$hardcode_into_libs" || test yes = "$build_old_libs" || test yes = "$link_static"; }; then # Extract -R from dependency_libs temp_deplibs= for libdir in $dependency_libs; do case $libdir in -R*) func_stripname '-R' '' "$libdir" temp_xrpath=$func_stripname_result case " $xrpath " in *" $temp_xrpath "*) ;; *) func_append xrpath " $temp_xrpath";; esac;; *) func_append temp_deplibs " $libdir";; esac done dependency_libs=$temp_deplibs fi func_append newlib_search_path " $absdir" # Link against this library test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs" # ... and its dependency_libs tmp_libs= for deplib in $dependency_libs; do newdependency_libs="$deplib $newdependency_libs" case $deplib in -L*) func_stripname '-L' '' "$deplib" func_resolve_sysroot "$func_stripname_result";; *) func_resolve_sysroot "$deplib" ;; esac if $opt_preserve_dup_deps; then case "$tmp_libs " in *" $func_resolve_sysroot_result "*) func_append specialdeplibs " $func_resolve_sysroot_result" ;; esac fi func_append tmp_libs " $func_resolve_sysroot_result" done if test no != "$link_all_deplibs"; then # Add the search paths of all dependency libraries for deplib in $dependency_libs; do path= case $deplib in -L*) path=$deplib ;; *.la) func_resolve_sysroot "$deplib" deplib=$func_resolve_sysroot_result func_dirname "$deplib" "" "." dir=$func_dirname_result # We need an absolute path. case $dir in [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;; *) absdir=`cd "$dir" && pwd` if test -z "$absdir"; then func_warning "cannot determine absolute directory name of '$dir'" absdir=$dir fi ;; esac if $GREP "^installed=no" $deplib > /dev/null; then case $host in *-*-darwin*) depdepl= eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib` if test -n "$deplibrary_names"; then for tmp in $deplibrary_names; do depdepl=$tmp done if test -f "$absdir/$objdir/$depdepl"; then depdepl=$absdir/$objdir/$depdepl darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` if test -z "$darwin_install_name"; then darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'` fi func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl" func_append linker_flags " -dylib_file $darwin_install_name:$depdepl" path= fi fi ;; *) path=-L$absdir/$objdir ;; esac else eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib` test -z "$libdir" && \ func_fatal_error "'$deplib' is not a valid libtool archive" test "$absdir" != "$libdir" && \ func_warning "'$deplib' seems to be moved" path=-L$absdir fi ;; esac case " $deplibs " in *" $path "*) ;; *) deplibs="$path $deplibs" ;; esac done fi # link_all_deplibs != no fi # linkmode = lib done # for deplib in $libs if test link = "$pass"; then if test prog = "$linkmode"; then compile_deplibs="$new_inherited_linker_flags $compile_deplibs" finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs" else compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` fi fi dependency_libs=$newdependency_libs if test dlpreopen = "$pass"; then # Link the dlpreopened libraries before other libraries for deplib in $save_deplibs; do deplibs="$deplib $deplibs" done fi if test dlopen != "$pass"; then test conv = "$pass" || { # Make sure lib_search_path contains only unique directories. lib_search_path= for dir in $newlib_search_path; do case "$lib_search_path " in *" $dir "*) ;; *) func_append lib_search_path " $dir" ;; esac done newlib_search_path= } if test prog,link = "$linkmode,$pass"; then vars="compile_deplibs finalize_deplibs" else vars=deplibs fi for var in $vars dependency_libs; do # Add libraries to $var in reverse order eval tmp_libs=\"\$$var\" new_libs= for deplib in $tmp_libs; do # FIXME: Pedantically, this is the right thing to do, so # that some nasty dependency loop isn't accidentally # broken: #new_libs="$deplib $new_libs" # Pragmatically, this seems to cause very few problems in # practice: case $deplib in -L*) new_libs="$deplib $new_libs" ;; -R*) ;; *) # And here is the reason: when a library appears more # than once as an explicit dependence of a library, or # is implicitly linked in more than once by the # compiler, it is considered special, and multiple # occurrences thereof are not removed. Compare this # with having the same library being listed as a # dependency of multiple other libraries: in this case, # we know (pedantically, we assume) the library does not # need to be listed more than once, so we keep only the # last copy. This is not always right, but it is rare # enough that we require users that really mean to play # such unportable linking tricks to link the library # using -Wl,-lname, so that libtool does not consider it # for duplicate removal. case " $specialdeplibs " in *" $deplib "*) new_libs="$deplib $new_libs" ;; *) case " $new_libs " in *" $deplib "*) ;; *) new_libs="$deplib $new_libs" ;; esac ;; esac ;; esac done tmp_libs= for deplib in $new_libs; do case $deplib in -L*) case " $tmp_libs " in *" $deplib "*) ;; *) func_append tmp_libs " $deplib" ;; esac ;; *) func_append tmp_libs " $deplib" ;; esac done eval $var=\"$tmp_libs\" done # for var fi # Add Sun CC postdeps if required: test CXX = "$tagname" && { case $host_os in linux*) case `$CC -V 2>&1 | sed 5q` in *Sun\ C*) # Sun C++ 5.9 func_suncc_cstd_abi if test no != "$suncc_use_cstd_abi"; then func_append postdeps ' -library=Cstd -library=Crun' fi ;; esac ;; solaris*) func_cc_basename "$CC" case $func_cc_basename_result in CC* | sunCC*) func_suncc_cstd_abi if test no != "$suncc_use_cstd_abi"; then func_append postdeps ' -library=Cstd -library=Crun' fi ;; esac ;; esac } # Last step: remove runtime libs from dependency_libs # (they stay in deplibs) tmp_libs= for i in $dependency_libs; do case " $predeps $postdeps $compiler_lib_search_path " in *" $i "*) i= ;; esac if test -n "$i"; then func_append tmp_libs " $i" fi done dependency_libs=$tmp_libs done # for pass if test prog = "$linkmode"; then dlfiles=$newdlfiles fi if test prog = "$linkmode" || test lib = "$linkmode"; then dlprefiles=$newdlprefiles fi case $linkmode in oldlib) if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then func_warning "'-dlopen' is ignored for archives" fi case " $deplibs" in *\ -l* | *\ -L*) func_warning "'-l' and '-L' are ignored for archives" ;; esac test -n "$rpath" && \ func_warning "'-rpath' is ignored for archives" test -n "$xrpath" && \ func_warning "'-R' is ignored for archives" test -n "$vinfo" && \ func_warning "'-version-info/-version-number' is ignored for archives" test -n "$release" && \ func_warning "'-release' is ignored for archives" test -n "$export_symbols$export_symbols_regex" && \ func_warning "'-export-symbols' is ignored for archives" # Now set the variables for building old libraries. build_libtool_libs=no oldlibs=$output func_append objs "$old_deplibs" ;; lib) # Make sure we only generate libraries of the form 'libNAME.la'. case $outputname in lib*) func_stripname 'lib' '.la' "$outputname" name=$func_stripname_result eval shared_ext=\"$shrext_cmds\" eval libname=\"$libname_spec\" ;; *) test no = "$module" \ && func_fatal_help "libtool library '$output' must begin with 'lib'" if test no != "$need_lib_prefix"; then # Add the "lib" prefix for modules if required func_stripname '' '.la' "$outputname" name=$func_stripname_result eval shared_ext=\"$shrext_cmds\" eval libname=\"$libname_spec\" else func_stripname '' '.la' "$outputname" libname=$func_stripname_result fi ;; esac if test -n "$objs"; then if test pass_all != "$deplibs_check_method"; then func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs" else echo $ECHO "*** Warning: Linking the shared library $output against the non-libtool" $ECHO "*** objects $objs is not portable!" func_append libobjs " $objs" fi fi test no = "$dlself" \ || func_warning "'-dlopen self' is ignored for libtool libraries" set dummy $rpath shift test 1 -lt "$#" \ && func_warning "ignoring multiple '-rpath's for a libtool library" install_libdir=$1 oldlibs= if test -z "$rpath"; then if test yes = "$build_libtool_libs"; then # Building a libtool convenience library. # Some compilers have problems with a '.al' extension so # convenience libraries should have the same extension an # archive normally would. oldlibs="$output_objdir/$libname.$libext $oldlibs" build_libtool_libs=convenience build_old_libs=yes fi test -n "$vinfo" && \ func_warning "'-version-info/-version-number' is ignored for convenience libraries" test -n "$release" && \ func_warning "'-release' is ignored for convenience libraries" else # Parse the version information argument. save_ifs=$IFS; IFS=: set dummy $vinfo 0 0 0 shift IFS=$save_ifs test -n "$7" && \ func_fatal_help "too many parameters to '-version-info'" # convert absolute version numbers to libtool ages # this retains compatibility with .la files and attempts # to make the code below a bit more comprehensible case $vinfo_number in yes) number_major=$1 number_minor=$2 number_revision=$3 # # There are really only two kinds -- those that # use the current revision as the major version # and those that subtract age and use age as # a minor version. But, then there is irix # that has an extra 1 added just for fun # case $version_type in # correct linux to gnu/linux during the next big refactor darwin|freebsd-elf|linux|osf|windows|none) func_arith $number_major + $number_minor current=$func_arith_result age=$number_minor revision=$number_revision ;; freebsd-aout|qnx|sunos) current=$number_major revision=$number_minor age=0 ;; irix|nonstopux) func_arith $number_major + $number_minor current=$func_arith_result age=$number_minor revision=$number_minor lt_irix_increment=no ;; esac ;; no) current=$1 revision=$2 age=$3 ;; esac # Check that each of the things are valid numbers. case $current in 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; *) func_error "CURRENT '$current' must be a nonnegative integer" func_fatal_error "'$vinfo' is not valid version information" ;; esac case $revision in 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; *) func_error "REVISION '$revision' must be a nonnegative integer" func_fatal_error "'$vinfo' is not valid version information" ;; esac case $age in 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; *) func_error "AGE '$age' must be a nonnegative integer" func_fatal_error "'$vinfo' is not valid version information" ;; esac if test "$age" -gt "$current"; then func_error "AGE '$age' is greater than the current interface number '$current'" func_fatal_error "'$vinfo' is not valid version information" fi # Calculate the version variables. major= versuffix= verstring= case $version_type in none) ;; darwin) # Like Linux, but with the current version available in # verstring for coding it into the library header func_arith $current - $age major=.$func_arith_result versuffix=$major.$age.$revision # Darwin ld doesn't like 0 for these options... func_arith $current + 1 minor_current=$func_arith_result xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" # On Darwin other compilers case $CC in nagfor*) verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" ;; *) verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" ;; esac ;; freebsd-aout) major=.$current versuffix=.$current.$revision ;; freebsd-elf) func_arith $current - $age major=.$func_arith_result versuffix=$major.$age.$revision ;; irix | nonstopux) if test no = "$lt_irix_increment"; then func_arith $current - $age else func_arith $current - $age + 1 fi major=$func_arith_result case $version_type in nonstopux) verstring_prefix=nonstopux ;; *) verstring_prefix=sgi ;; esac verstring=$verstring_prefix$major.$revision # Add in all the interfaces that we are compatible with. loop=$revision while test 0 -ne "$loop"; do func_arith $revision - $loop iface=$func_arith_result func_arith $loop - 1 loop=$func_arith_result verstring=$verstring_prefix$major.$iface:$verstring done # Before this point, $major must not contain '.'. major=.$major versuffix=$major.$revision ;; linux) # correct to gnu/linux during the next big refactor func_arith $current - $age major=.$func_arith_result versuffix=$major.$age.$revision ;; osf) func_arith $current - $age major=.$func_arith_result versuffix=.$current.$age.$revision verstring=$current.$age.$revision # Add in all the interfaces that we are compatible with. loop=$age while test 0 -ne "$loop"; do func_arith $current - $loop iface=$func_arith_result func_arith $loop - 1 loop=$func_arith_result verstring=$verstring:$iface.0 done # Make executables depend on our current version. func_append verstring ":$current.0" ;; qnx) major=.$current versuffix=.$current ;; sco) major=.$current versuffix=.$current ;; sunos) major=.$current versuffix=.$current.$revision ;; windows) # Use '-' rather than '.', since we only want one # extension on DOS 8.3 file systems. func_arith $current - $age major=$func_arith_result versuffix=-$major ;; *) func_fatal_configuration "unknown library version type '$version_type'" ;; esac # Clear the version info if we defaulted, and they specified a release. if test -z "$vinfo" && test -n "$release"; then major= case $version_type in darwin) # we can't check for "0.0" in archive_cmds due to quoting # problems, so we reset it completely verstring= ;; *) verstring=0.0 ;; esac if test no = "$need_version"; then versuffix= else versuffix=.0.0 fi fi # Remove version info from name if versioning should be avoided if test yes,no = "$avoid_version,$need_version"; then major= versuffix= verstring= fi # Check to see if the archive will have undefined symbols. if test yes = "$allow_undefined"; then if test unsupported = "$allow_undefined_flag"; then if test yes = "$build_old_libs"; then func_warning "undefined symbols not allowed in $host shared libraries; building static only" build_libtool_libs=no else func_fatal_error "can't build $host shared library unless -no-undefined is specified" fi fi else # Don't allow undefined symbols. allow_undefined_flag=$no_undefined_flag fi fi func_generate_dlsyms "$libname" "$libname" : func_append libobjs " $symfileobj" test " " = "$libobjs" && libobjs= if test relink != "$opt_mode"; then # Remove our outputs, but don't remove object files since they # may have been created when compiling PIC objects. removelist= tempremovelist=`$ECHO "$output_objdir/*"` for p in $tempremovelist; do case $p in *.$objext | *.gcno) ;; $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*) if test -n "$precious_files_regex"; then if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 then continue fi fi func_append removelist " $p" ;; *) ;; esac done test -n "$removelist" && \ func_show_eval "${RM}r \$removelist" fi # Now set the variables for building old libraries. if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then func_append oldlibs " $output_objdir/$libname.$libext" # Transform .lo files to .o files. oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP` fi # Eliminate all temporary directories. #for path in $notinst_path; do # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` #done if test -n "$xrpath"; then # If the user specified any rpath flags, then add them. temp_xrpath= for libdir in $xrpath; do func_replace_sysroot "$libdir" func_append temp_xrpath " -R$func_replace_sysroot_result" case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac done if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then dependency_libs="$temp_xrpath $dependency_libs" fi fi # Make sure dlfiles contains only unique files that won't be dlpreopened old_dlfiles=$dlfiles dlfiles= for lib in $old_dlfiles; do case " $dlprefiles $dlfiles " in *" $lib "*) ;; *) func_append dlfiles " $lib" ;; esac done # Make sure dlprefiles contains only unique files old_dlprefiles=$dlprefiles dlprefiles= for lib in $old_dlprefiles; do case "$dlprefiles " in *" $lib "*) ;; *) func_append dlprefiles " $lib" ;; esac done if test yes = "$build_libtool_libs"; then if test -n "$rpath"; then case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*) # these systems don't actually have a c library (as such)! ;; *-*-rhapsody* | *-*-darwin1.[012]) # Rhapsody C library is in the System framework func_append deplibs " System.ltframework" ;; *-*-netbsd*) # Don't link with libc until the a.out ld.so is fixed. ;; *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) # Do not include libc due to us having libc/libc_r. ;; *-*-sco3.2v5* | *-*-sco5v6*) # Causes problems with __ctype ;; *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) # Compiler inserts libc in the correct place for threads to work ;; *) # Add libc to deplibs on all other systems if necessary. if test yes = "$build_libtool_need_lc"; then func_append deplibs " -lc" fi ;; esac fi # Transform deplibs into only deplibs that can be linked in shared. name_save=$name libname_save=$libname release_save=$release versuffix_save=$versuffix major_save=$major # I'm not sure if I'm treating the release correctly. I think # release should show up in the -l (ie -lgmp5) so we don't want to # add it in twice. Is that correct? release= versuffix= major= newdeplibs= droppeddeps=no case $deplibs_check_method in pass_all) # Don't check for shared/static. Everything works. # This might be a little naive. We might want to check # whether the library exists or not. But this is on # osf3 & osf4 and I'm not really sure... Just # implementing what was already the behavior. newdeplibs=$deplibs ;; test_compile) # This code stresses the "libraries are programs" paradigm to its # limits. Maybe even breaks it. We compile a program, linking it # against the deplibs as a proxy for the library. Then we can check # whether they linked in statically or dynamically with ldd. $opt_dry_run || $RM conftest.c cat > conftest.c <<EOF int main() { return 0; } EOF $opt_dry_run || $RM conftest if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then ldd_output=`ldd conftest` for i in $deplibs; do case $i in -l*) func_stripname -l '' "$i" name=$func_stripname_result if test yes = "$allow_libtool_libs_with_static_runtimes"; then case " $predeps $postdeps " in *" $i "*) func_append newdeplibs " $i" i= ;; esac fi if test -n "$i"; then libname=`eval "\\$ECHO \"$libname_spec\""` deplib_matches=`eval "\\$ECHO \"$library_names_spec\""` set dummy $deplib_matches; shift deplib_match=$1 if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then func_append newdeplibs " $i" else droppeddeps=yes echo $ECHO "*** Warning: dynamic linker does not accept needed library $i." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which I believe you do not have" echo "*** because a test_compile did reveal that the linker did not use it for" echo "*** its dynamic dependency list that programs get resolved with at runtime." fi fi ;; *) func_append newdeplibs " $i" ;; esac done else # Error occurred in the first compile. Let's try to salvage # the situation: Compile a separate program for each library. for i in $deplibs; do case $i in -l*) func_stripname -l '' "$i" name=$func_stripname_result $opt_dry_run || $RM conftest if $LTCC $LTCFLAGS -o conftest conftest.c $i; then ldd_output=`ldd conftest` if test yes = "$allow_libtool_libs_with_static_runtimes"; then case " $predeps $postdeps " in *" $i "*) func_append newdeplibs " $i" i= ;; esac fi if test -n "$i"; then libname=`eval "\\$ECHO \"$libname_spec\""` deplib_matches=`eval "\\$ECHO \"$library_names_spec\""` set dummy $deplib_matches; shift deplib_match=$1 if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then func_append newdeplibs " $i" else droppeddeps=yes echo $ECHO "*** Warning: dynamic linker does not accept needed library $i." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because a test_compile did reveal that the linker did not use this one" echo "*** as a dynamic dependency that programs can get resolved with at runtime." fi fi else droppeddeps=yes echo $ECHO "*** Warning! Library $i is needed by this library but I was not able to" echo "*** make it link in! You will probably need to install it or some" echo "*** library that it depends on before this library will be fully" echo "*** functional. Installing it before continuing would be even better." fi ;; *) func_append newdeplibs " $i" ;; esac done fi ;; file_magic*) set dummy $deplibs_check_method; shift file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` for a_deplib in $deplibs; do case $a_deplib in -l*) func_stripname -l '' "$a_deplib" name=$func_stripname_result if test yes = "$allow_libtool_libs_with_static_runtimes"; then case " $predeps $postdeps " in *" $a_deplib "*) func_append newdeplibs " $a_deplib" a_deplib= ;; esac fi if test -n "$a_deplib"; then libname=`eval "\\$ECHO \"$libname_spec\""` if test -n "$file_magic_glob"; then libnameglob=`func_echo_all "$libname" | $SED -e $file_magic_glob` else libnameglob=$libname fi test yes = "$want_nocaseglob" && nocaseglob=`shopt -p nocaseglob` for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do if test yes = "$want_nocaseglob"; then shopt -s nocaseglob potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null` $nocaseglob else potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null` fi for potent_lib in $potential_libs; do # Follow soft links. if ls -lLd "$potent_lib" 2>/dev/null | $GREP " -> " >/dev/null; then continue fi # The statement above tries to avoid entering an # endless loop below, in case of cyclic links. # We might still enter an endless loop, since a link # loop can be closed while we follow links, # but so what? potlib=$potent_lib while test -h "$potlib" 2>/dev/null; do potliblink=`ls -ld $potlib | $SED 's/.* -> //'` case $potliblink in [\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;; *) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";; esac done if eval $file_magic_cmd \"\$potlib\" 2>/dev/null | $SED -e 10q | $EGREP "$file_magic_regex" > /dev/null; then func_append newdeplibs " $a_deplib" a_deplib= break 2 fi done done fi if test -n "$a_deplib"; then droppeddeps=yes echo $ECHO "*** Warning: linker path does not have real file for library $a_deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because I did check the linker path looking for a file starting" if test -z "$potlib"; then $ECHO "*** with $libname but no candidates were found. (...for file magic test)" else $ECHO "*** with $libname and none of the candidates passed a file format test" $ECHO "*** using a file magic. Last file checked: $potlib" fi fi ;; *) # Add a -L argument. func_append newdeplibs " $a_deplib" ;; esac done # Gone through all deplibs. ;; match_pattern*) set dummy $deplibs_check_method; shift match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` for a_deplib in $deplibs; do case $a_deplib in -l*) func_stripname -l '' "$a_deplib" name=$func_stripname_result if test yes = "$allow_libtool_libs_with_static_runtimes"; then case " $predeps $postdeps " in *" $a_deplib "*) func_append newdeplibs " $a_deplib" a_deplib= ;; esac fi if test -n "$a_deplib"; then libname=`eval "\\$ECHO \"$libname_spec\""` for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do potential_libs=`ls $i/$libname[.-]* 2>/dev/null` for potent_lib in $potential_libs; do potlib=$potent_lib # see symlink-check above in file_magic test if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \ $EGREP "$match_pattern_regex" > /dev/null; then func_append newdeplibs " $a_deplib" a_deplib= break 2 fi done done fi if test -n "$a_deplib"; then droppeddeps=yes echo $ECHO "*** Warning: linker path does not have real file for library $a_deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have" echo "*** because I did check the linker path looking for a file starting" if test -z "$potlib"; then $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)" else $ECHO "*** with $libname and none of the candidates passed a file format test" $ECHO "*** using a regex pattern. Last file checked: $potlib" fi fi ;; *) # Add a -L argument. func_append newdeplibs " $a_deplib" ;; esac done # Gone through all deplibs. ;; none | unknown | *) newdeplibs= tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'` if test yes = "$allow_libtool_libs_with_static_runtimes"; then for i in $predeps $postdeps; do # can't use Xsed below, because $i might contain '/' tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"` done fi case $tmp_deplibs in *[!\ \ ]*) echo if test none = "$deplibs_check_method"; then echo "*** Warning: inter-library dependencies are not supported in this platform." else echo "*** Warning: inter-library dependencies are not known to be supported." fi echo "*** All declared inter-library dependencies are being dropped." droppeddeps=yes ;; esac ;; esac versuffix=$versuffix_save major=$major_save release=$release_save libname=$libname_save name=$name_save case $host in *-*-rhapsody* | *-*-darwin1.[012]) # On Rhapsody replace the C library with the System framework newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'` ;; esac if test yes = "$droppeddeps"; then if test yes = "$module"; then echo echo "*** Warning: libtool could not satisfy all declared inter-library" $ECHO "*** dependencies of module $libname. Therefore, libtool will create" echo "*** a static module, that should work as long as the dlopening" echo "*** application is linked with the -dlopen flag." if test -z "$global_symbol_pipe"; then echo echo "*** However, this would only work if libtool was able to extract symbol" echo "*** lists from a program, using 'nm' or equivalent, but libtool could" echo "*** not find such a program. So, this module is probably useless." echo "*** 'nm' from GNU binutils and a full rebuild may help." fi if test no = "$build_old_libs"; then oldlibs=$output_objdir/$libname.$libext build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi else echo "*** The inter-library dependencies that have been dropped here will be" echo "*** automatically added whenever a program is linked with this library" echo "*** or is declared to -dlopen it." if test no = "$allow_undefined"; then echo echo "*** Since this library must not contain undefined symbols," echo "*** because either the platform does not support them or" echo "*** it was explicitly requested with -no-undefined," echo "*** libtool will only create a static version of it." if test no = "$build_old_libs"; then oldlibs=$output_objdir/$libname.$libext build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi fi fi fi # Done checking deplibs! deplibs=$newdeplibs fi # Time to change all our "foo.ltframework" stuff back to "-framework foo" case $host in *-*-darwin*) newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` ;; esac # move library search paths that coincide with paths to not yet # installed libraries to the beginning of the library search list new_libs= for path in $notinst_path; do case " $new_libs " in *" -L$path/$objdir "*) ;; *) case " $deplibs " in *" -L$path/$objdir "*) func_append new_libs " -L$path/$objdir" ;; esac ;; esac done for deplib in $deplibs; do case $deplib in -L*) case " $new_libs " in *" $deplib "*) ;; *) func_append new_libs " $deplib" ;; esac ;; *) func_append new_libs " $deplib" ;; esac done deplibs=$new_libs # All the library-specific variables (install_libdir is set above). library_names= old_library= dlname= # Test again, we may have decided not to build it any more if test yes = "$build_libtool_libs"; then # Remove $wl instances when linking with ld. # FIXME: should test the right _cmds variable. case $archive_cmds in *\$LD\ *) wl= ;; esac if test yes = "$hardcode_into_libs"; then # Hardcode the library paths hardcode_libdirs= dep_rpath= rpath=$finalize_rpath test relink = "$opt_mode" || rpath=$compile_rpath$rpath for libdir in $rpath; do if test -n "$hardcode_libdir_flag_spec"; then if test -n "$hardcode_libdir_separator"; then func_replace_sysroot "$libdir" libdir=$func_replace_sysroot_result if test -z "$hardcode_libdirs"; then hardcode_libdirs=$libdir else # Just accumulate the unique libdirs. case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) ;; *) func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" ;; esac fi else eval flag=\"$hardcode_libdir_flag_spec\" func_append dep_rpath " $flag" fi elif test -n "$runpath_var"; then case "$perm_rpath " in *" $libdir "*) ;; *) func_append perm_rpath " $libdir" ;; esac fi done # Substitute the hardcoded libdirs into the rpath. if test -n "$hardcode_libdir_separator" && test -n "$hardcode_libdirs"; then libdir=$hardcode_libdirs eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" fi if test -n "$runpath_var" && test -n "$perm_rpath"; then # We should set the runpath_var. rpath= for dir in $perm_rpath; do func_append rpath "$dir:" done eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" fi test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" fi shlibpath=$finalize_shlibpath test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath if test -n "$shlibpath"; then eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" fi # Get the real and link names of the library. eval shared_ext=\"$shrext_cmds\" eval library_names=\"$library_names_spec\" set dummy $library_names shift realname=$1 shift if test -n "$soname_spec"; then eval soname=\"$soname_spec\" else soname=$realname fi if test -z "$dlname"; then dlname=$soname fi lib=$output_objdir/$realname linknames= for link do func_append linknames " $link" done # Use standard objects if they are pic test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` test "X$libobjs" = "X " && libobjs= delfiles= if test -n "$export_symbols" && test -n "$include_expsyms"; then $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" export_symbols=$output_objdir/$libname.uexp func_append delfiles " $export_symbols" fi orig_export_symbols= case $host_os in cygwin* | mingw* | cegcc*) if test -n "$export_symbols" && test -z "$export_symbols_regex"; then # exporting using user supplied symfile func_dll_def_p "$export_symbols" || { # and it's NOT already a .def file. Must figure out # which of the given symbols are data symbols and tag # them as such. So, trigger use of export_symbols_cmds. # export_symbols gets reassigned inside the "prepare # the list of exported symbols" if statement, so the # include_expsyms logic still works. orig_export_symbols=$export_symbols export_symbols= always_export_symbols=yes } fi ;; esac # Prepare the list of exported symbols if test -z "$export_symbols"; then if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then func_verbose "generating symbol list for '$libname.la'" export_symbols=$output_objdir/$libname.exp $opt_dry_run || $RM $export_symbols cmds=$export_symbols_cmds save_ifs=$IFS; IFS='~' for cmd1 in $cmds; do IFS=$save_ifs # Take the normal branch if the nm_file_list_spec branch # doesn't work or if tool conversion is not needed. case $nm_file_list_spec~$to_tool_file_cmd in *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*) try_normal_branch=yes eval cmd=\"$cmd1\" func_len " $cmd" len=$func_len_result ;; *) try_normal_branch=no ;; esac if test yes = "$try_normal_branch" \ && { test "$len" -lt "$max_cmd_len" \ || test "$max_cmd_len" -le -1; } then func_show_eval "$cmd" 'exit $?' skipped_export=false elif test -n "$nm_file_list_spec"; then func_basename "$output" output_la=$func_basename_result save_libobjs=$libobjs save_output=$output output=$output_objdir/$output_la.nm func_to_tool_file "$output" libobjs=$nm_file_list_spec$func_to_tool_file_result func_append delfiles " $output" func_verbose "creating $NM input file list: $output" for obj in $save_libobjs; do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" done > "$output" eval cmd=\"$cmd1\" func_show_eval "$cmd" 'exit $?' output=$save_output libobjs=$save_libobjs skipped_export=false else # The command line is too long to execute in one step. func_verbose "using reloadable object file for export list..." skipped_export=: # Break out early, otherwise skipped_export may be # set to false by a later but shorter cmd. break fi done IFS=$save_ifs if test -n "$export_symbols_regex" && test : != "$skipped_export"; then func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' func_show_eval '$MV "${export_symbols}T" "$export_symbols"' fi fi fi if test -n "$export_symbols" && test -n "$include_expsyms"; then tmp_export_symbols=$export_symbols test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' fi if test : != "$skipped_export" && test -n "$orig_export_symbols"; then # The given exports_symbols file has to be filtered, so filter it. func_verbose "filter symbol list for '$libname.la' to tag DATA exports" # FIXME: $output_objdir/$libname.filter potentially contains lots of # 's' commands, which not all seds can handle. GNU sed should be fine # though. Also, the filter scales superlinearly with the number of # global variables. join(1) would be nice here, but unfortunately # isn't a blessed tool. $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter func_append delfiles " $export_symbols $output_objdir/$libname.filter" export_symbols=$output_objdir/$libname.def $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols fi tmp_deplibs= for test_deplib in $deplibs; do case " $convenience " in *" $test_deplib "*) ;; *) func_append tmp_deplibs " $test_deplib" ;; esac done deplibs=$tmp_deplibs if test -n "$convenience"; then if test -n "$whole_archive_flag_spec" && test yes = "$compiler_needs_object" && test -z "$libobjs"; then # extract the archives, so we have objects to list. # TODO: could optimize this to just extract one archive. whole_archive_flag_spec= fi if test -n "$whole_archive_flag_spec"; then save_libobjs=$libobjs eval libobjs=\"\$libobjs $whole_archive_flag_spec\" test "X$libobjs" = "X " && libobjs= else gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $convenience func_append libobjs " $func_extract_archives_result" test "X$libobjs" = "X " && libobjs= fi fi if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then eval flag=\"$thread_safe_flag_spec\" func_append linker_flags " $flag" fi # Make a backup of the uninstalled library when relinking if test relink = "$opt_mode"; then $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? fi # Do each of the archive commands. if test yes = "$module" && test -n "$module_cmds"; then if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then eval test_cmds=\"$module_expsym_cmds\" cmds=$module_expsym_cmds else eval test_cmds=\"$module_cmds\" cmds=$module_cmds fi else if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then eval test_cmds=\"$archive_expsym_cmds\" cmds=$archive_expsym_cmds else eval test_cmds=\"$archive_cmds\" cmds=$archive_cmds fi fi if test : != "$skipped_export" && func_len " $test_cmds" && len=$func_len_result && test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then : else # The command line is too long to link in one step, link piecewise # or, if using GNU ld and skipped_export is not :, use a linker # script. # Save the value of $output and $libobjs because we want to # use them later. If we have whole_archive_flag_spec, we # want to use save_libobjs as it was before # whole_archive_flag_spec was expanded, because we can't # assume the linker understands whole_archive_flag_spec. # This may have to be revisited, in case too many # convenience libraries get linked in and end up exceeding # the spec. if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then save_libobjs=$libobjs fi save_output=$output func_basename "$output" output_la=$func_basename_result # Clear the reloadable object creation command queue and # initialize k to one. test_cmds= concat_cmds= objlist= last_robj= k=1 if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then output=$output_objdir/$output_la.lnkscript func_verbose "creating GNU ld script: $output" echo 'INPUT (' > $output for obj in $save_libobjs do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" >> $output done echo ')' >> $output func_append delfiles " $output" func_to_tool_file "$output" output=$func_to_tool_file_result elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then output=$output_objdir/$output_la.lnk func_verbose "creating linker input file list: $output" : > $output set x $save_libobjs shift firstobj= if test yes = "$compiler_needs_object"; then firstobj="$1 " shift fi for obj do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" >> $output done func_append delfiles " $output" func_to_tool_file "$output" output=$firstobj\"$file_list_spec$func_to_tool_file_result\" else if test -n "$save_libobjs"; then func_verbose "creating reloadable object files..." output=$output_objdir/$output_la-$k.$objext eval test_cmds=\"$reload_cmds\" func_len " $test_cmds" len0=$func_len_result len=$len0 # Loop over the list of objects to be linked. for obj in $save_libobjs do func_len " $obj" func_arith $len + $func_len_result len=$func_arith_result if test -z "$objlist" || test "$len" -lt "$max_cmd_len"; then func_append objlist " $obj" else # The command $test_cmds is almost too long, add a # command to the queue. if test 1 -eq "$k"; then # The first file doesn't have a previous command to add. reload_objs=$objlist eval concat_cmds=\"$reload_cmds\" else # All subsequent reloadable object files will link in # the last one created. reload_objs="$objlist $last_robj" eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\" fi last_robj=$output_objdir/$output_la-$k.$objext func_arith $k + 1 k=$func_arith_result output=$output_objdir/$output_la-$k.$objext objlist=" $obj" func_len " $last_robj" func_arith $len0 + $func_len_result len=$func_arith_result fi done # Handle the remaining objects by creating one last # reloadable object file. All subsequent reloadable object # files will link in the last one created. test -z "$concat_cmds" || concat_cmds=$concat_cmds~ reload_objs="$objlist $last_robj" eval concat_cmds=\"\$concat_cmds$reload_cmds\" if test -n "$last_robj"; then eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" fi func_append delfiles " $output" else output= fi ${skipped_export-false} && { func_verbose "generating symbol list for '$libname.la'" export_symbols=$output_objdir/$libname.exp $opt_dry_run || $RM $export_symbols libobjs=$output # Append the command to create the export file. test -z "$concat_cmds" || concat_cmds=$concat_cmds~ eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" if test -n "$last_robj"; then eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" fi } test -n "$save_libobjs" && func_verbose "creating a temporary reloadable object file: $output" # Loop through the commands generated above and execute them. save_ifs=$IFS; IFS='~' for cmd in $concat_cmds; do IFS=$save_ifs $opt_quiet || { func_quote_for_expand "$cmd" eval "func_echo $func_quote_for_expand_result" } $opt_dry_run || eval "$cmd" || { lt_exit=$? # Restore the uninstalled library and exit if test relink = "$opt_mode"; then ( cd "$output_objdir" && \ $RM "${realname}T" && \ $MV "${realname}U" "$realname" ) fi exit $lt_exit } done IFS=$save_ifs if test -n "$export_symbols_regex" && ${skipped_export-false}; then func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' func_show_eval '$MV "${export_symbols}T" "$export_symbols"' fi fi ${skipped_export-false} && { if test -n "$export_symbols" && test -n "$include_expsyms"; then tmp_export_symbols=$export_symbols test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' fi if test -n "$orig_export_symbols"; then # The given exports_symbols file has to be filtered, so filter it. func_verbose "filter symbol list for '$libname.la' to tag DATA exports" # FIXME: $output_objdir/$libname.filter potentially contains lots of # 's' commands, which not all seds can handle. GNU sed should be fine # though. Also, the filter scales superlinearly with the number of # global variables. join(1) would be nice here, but unfortunately # isn't a blessed tool. $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter func_append delfiles " $export_symbols $output_objdir/$libname.filter" export_symbols=$output_objdir/$libname.def $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols fi } libobjs=$output # Restore the value of output. output=$save_output if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then eval libobjs=\"\$libobjs $whole_archive_flag_spec\" test "X$libobjs" = "X " && libobjs= fi # Expand the library linking commands again to reset the # value of $libobjs for piecewise linking. # Do each of the archive commands. if test yes = "$module" && test -n "$module_cmds"; then if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then cmds=$module_expsym_cmds else cmds=$module_cmds fi else if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then cmds=$archive_expsym_cmds else cmds=$archive_cmds fi fi fi if test -n "$delfiles"; then # Append the command to remove temporary files to $cmds. eval cmds=\"\$cmds~\$RM $delfiles\" fi # Add any objects from preloaded convenience libraries if test -n "$dlprefiles"; then gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $dlprefiles func_append libobjs " $func_extract_archives_result" test "X$libobjs" = "X " && libobjs= fi save_ifs=$IFS; IFS='~' for cmd in $cmds; do IFS=$sp$nl eval cmd=\"$cmd\" IFS=$save_ifs $opt_quiet || { func_quote_for_expand "$cmd" eval "func_echo $func_quote_for_expand_result" } $opt_dry_run || eval "$cmd" || { lt_exit=$? # Restore the uninstalled library and exit if test relink = "$opt_mode"; then ( cd "$output_objdir" && \ $RM "${realname}T" && \ $MV "${realname}U" "$realname" ) fi exit $lt_exit } done IFS=$save_ifs # Restore the uninstalled library and exit if test relink = "$opt_mode"; then $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $? if test -n "$convenience"; then if test -z "$whole_archive_flag_spec"; then func_show_eval '${RM}r "$gentop"' fi fi exit $EXIT_SUCCESS fi # Create links to the real library. for linkname in $linknames; do if test "$realname" != "$linkname"; then func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?' fi done # If -module or -export-dynamic was specified, set the dlname. if test yes = "$module" || test yes = "$export_dynamic"; then # On all known operating systems, these are identical. dlname=$soname fi fi ;; obj) if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then func_warning "'-dlopen' is ignored for objects" fi case " $deplibs" in *\ -l* | *\ -L*) func_warning "'-l' and '-L' are ignored for objects" ;; esac test -n "$rpath" && \ func_warning "'-rpath' is ignored for objects" test -n "$xrpath" && \ func_warning "'-R' is ignored for objects" test -n "$vinfo" && \ func_warning "'-version-info' is ignored for objects" test -n "$release" && \ func_warning "'-release' is ignored for objects" case $output in *.lo) test -n "$objs$old_deplibs" && \ func_fatal_error "cannot build library object '$output' from non-libtool objects" libobj=$output func_lo2o "$libobj" obj=$func_lo2o_result ;; *) libobj= obj=$output ;; esac # Delete the old objects. $opt_dry_run || $RM $obj $libobj # Objects from convenience libraries. This assumes # single-version convenience libraries. Whenever we create # different ones for PIC/non-PIC, this we'll have to duplicate # the extraction. reload_conv_objs= gentop= # if reload_cmds runs $LD directly, get rid of -Wl from # whole_archive_flag_spec and hope we can get by with turning comma # into space. case $reload_cmds in *\$LD[\ \$]*) wl= ;; esac if test -n "$convenience"; then if test -n "$whole_archive_flag_spec"; then eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\" test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'` reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags else gentop=$output_objdir/${obj}x func_append generated " $gentop" func_extract_archives $gentop $convenience reload_conv_objs="$reload_objs $func_extract_archives_result" fi fi # If we're not building shared, we need to use non_pic_objs test yes = "$build_libtool_libs" || libobjs=$non_pic_objects # Create the old-style object. reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs output=$obj func_execute_cmds "$reload_cmds" 'exit $?' # Exit if we aren't doing a library object file. if test -z "$libobj"; then if test -n "$gentop"; then func_show_eval '${RM}r "$gentop"' fi exit $EXIT_SUCCESS fi test yes = "$build_libtool_libs" || { if test -n "$gentop"; then func_show_eval '${RM}r "$gentop"' fi # Create an invalid libtool object if no PIC, so that we don't # accidentally link it into a program. # $show "echo timestamp > $libobj" # $opt_dry_run || eval "echo timestamp > $libobj" || exit $? exit $EXIT_SUCCESS } if test -n "$pic_flag" || test default != "$pic_mode"; then # Only do commands if we really have different PIC objects. reload_objs="$libobjs $reload_conv_objs" output=$libobj func_execute_cmds "$reload_cmds" 'exit $?' fi if test -n "$gentop"; then func_show_eval '${RM}r "$gentop"' fi exit $EXIT_SUCCESS ;; prog) case $host in *cygwin*) func_stripname '' '.exe' "$output" output=$func_stripname_result.exe;; esac test -n "$vinfo" && \ func_warning "'-version-info' is ignored for programs" test -n "$release" && \ func_warning "'-release' is ignored for programs" $preload \ && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \ && func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support." case $host in *-*-rhapsody* | *-*-darwin1.[012]) # On Rhapsody replace the C library is the System framework compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'` finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'` ;; esac case $host in *-*-darwin*) # Don't allow lazy linking, it breaks C++ global constructors # But is supposedly fixed on 10.4 or later (yay!). if test CXX = "$tagname"; then case ${MACOSX_DEPLOYMENT_TARGET-10.0} in 10.[0123]) func_append compile_command " $wl-bind_at_load" func_append finalize_command " $wl-bind_at_load" ;; esac fi # Time to change all our "foo.ltframework" stuff back to "-framework foo" compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` ;; esac # move library search paths that coincide with paths to not yet # installed libraries to the beginning of the library search list new_libs= for path in $notinst_path; do case " $new_libs " in *" -L$path/$objdir "*) ;; *) case " $compile_deplibs " in *" -L$path/$objdir "*) func_append new_libs " -L$path/$objdir" ;; esac ;; esac done for deplib in $compile_deplibs; do case $deplib in -L*) case " $new_libs " in *" $deplib "*) ;; *) func_append new_libs " $deplib" ;; esac ;; *) func_append new_libs " $deplib" ;; esac done compile_deplibs=$new_libs func_append compile_command " $compile_deplibs" func_append finalize_command " $finalize_deplibs" if test -n "$rpath$xrpath"; then # If the user specified any rpath flags, then add them. for libdir in $rpath $xrpath; do # This is the magic to use -rpath. case "$finalize_rpath " in *" $libdir "*) ;; *) func_append finalize_rpath " $libdir" ;; esac done fi # Now hardcode the library paths rpath= hardcode_libdirs= for libdir in $compile_rpath $finalize_rpath; do if test -n "$hardcode_libdir_flag_spec"; then if test -n "$hardcode_libdir_separator"; then if test -z "$hardcode_libdirs"; then hardcode_libdirs=$libdir else # Just accumulate the unique libdirs. case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) ;; *) func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" ;; esac fi else eval flag=\"$hardcode_libdir_flag_spec\" func_append rpath " $flag" fi elif test -n "$runpath_var"; then case "$perm_rpath " in *" $libdir "*) ;; *) func_append perm_rpath " $libdir" ;; esac fi case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'` case :$dllsearchpath: in *":$libdir:"*) ;; ::) dllsearchpath=$libdir;; *) func_append dllsearchpath ":$libdir";; esac case :$dllsearchpath: in *":$testbindir:"*) ;; ::) dllsearchpath=$testbindir;; *) func_append dllsearchpath ":$testbindir";; esac ;; esac done # Substitute the hardcoded libdirs into the rpath. if test -n "$hardcode_libdir_separator" && test -n "$hardcode_libdirs"; then libdir=$hardcode_libdirs eval rpath=\" $hardcode_libdir_flag_spec\" fi compile_rpath=$rpath rpath= hardcode_libdirs= for libdir in $finalize_rpath; do if test -n "$hardcode_libdir_flag_spec"; then if test -n "$hardcode_libdir_separator"; then if test -z "$hardcode_libdirs"; then hardcode_libdirs=$libdir else # Just accumulate the unique libdirs. case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) ;; *) func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" ;; esac fi else eval flag=\"$hardcode_libdir_flag_spec\" func_append rpath " $flag" fi elif test -n "$runpath_var"; then case "$finalize_perm_rpath " in *" $libdir "*) ;; *) func_append finalize_perm_rpath " $libdir" ;; esac fi done # Substitute the hardcoded libdirs into the rpath. if test -n "$hardcode_libdir_separator" && test -n "$hardcode_libdirs"; then libdir=$hardcode_libdirs eval rpath=\" $hardcode_libdir_flag_spec\" fi finalize_rpath=$rpath if test -n "$libobjs" && test yes = "$build_old_libs"; then # Transform all the library objects into standard objects. compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP` finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP` fi func_generate_dlsyms "$outputname" "@PROGRAM@" false # template prelinking step if test -n "$prelink_cmds"; then func_execute_cmds "$prelink_cmds" 'exit $?' fi wrappers_required=: case $host in *cegcc* | *mingw32ce*) # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway. wrappers_required=false ;; *cygwin* | *mingw* ) test yes = "$build_libtool_libs" || wrappers_required=false ;; *) if test no = "$need_relink" || test yes != "$build_libtool_libs"; then wrappers_required=false fi ;; esac $wrappers_required || { # Replace the output file specification. compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'` link_command=$compile_command$compile_rpath # We have no uninstalled library dependencies, so finalize right now. exit_status=0 func_show_eval "$link_command" 'exit_status=$?' if test -n "$postlink_cmds"; then func_to_tool_file "$output" postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` func_execute_cmds "$postlink_cmds" 'exit $?' fi # Delete the generated files. if test -f "$output_objdir/${outputname}S.$objext"; then func_show_eval '$RM "$output_objdir/${outputname}S.$objext"' fi exit $exit_status } if test -n "$compile_shlibpath$finalize_shlibpath"; then compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command" fi if test -n "$finalize_shlibpath"; then finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command" fi compile_var= finalize_var= if test -n "$runpath_var"; then if test -n "$perm_rpath"; then # We should set the runpath_var. rpath= for dir in $perm_rpath; do func_append rpath "$dir:" done compile_var="$runpath_var=\"$rpath\$$runpath_var\" " fi if test -n "$finalize_perm_rpath"; then # We should set the runpath_var. rpath= for dir in $finalize_perm_rpath; do func_append rpath "$dir:" done finalize_var="$runpath_var=\"$rpath\$$runpath_var\" " fi fi if test yes = "$no_install"; then # We don't need to create a wrapper script. link_command=$compile_var$compile_command$compile_rpath # Replace the output file specification. link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'` # Delete the old output file. $opt_dry_run || $RM $output # Link the executable and exit func_show_eval "$link_command" 'exit $?' if test -n "$postlink_cmds"; then func_to_tool_file "$output" postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` func_execute_cmds "$postlink_cmds" 'exit $?' fi exit $EXIT_SUCCESS fi case $hardcode_action,$fast_install in relink,*) # Fast installation is not supported link_command=$compile_var$compile_command$compile_rpath relink_command=$finalize_var$finalize_command$finalize_rpath func_warning "this platform does not like uninstalled shared libraries" func_warning "'$output' will be relinked during installation" ;; *,yes) link_command=$finalize_var$compile_command$finalize_rpath relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'` ;; *,no) link_command=$compile_var$compile_command$compile_rpath relink_command=$finalize_var$finalize_command$finalize_rpath ;; *,needless) link_command=$finalize_var$compile_command$finalize_rpath relink_command= ;; esac # Replace the output file specification. link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'` # Delete the old output files. $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname func_show_eval "$link_command" 'exit $?' if test -n "$postlink_cmds"; then func_to_tool_file "$output_objdir/$outputname" postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'` func_execute_cmds "$postlink_cmds" 'exit $?' fi # Now create the wrapper script. func_verbose "creating $output" # Quote the relink command for shipping. if test -n "$relink_command"; then # Preserve any variables that may affect compiler behavior for var in $variables_saved_for_relink; do if eval test -z \"\${$var+set}\"; then relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command" elif eval var_value=\$$var; test -z "$var_value"; then relink_command="$var=; export $var; $relink_command" else func_quote_for_eval "$var_value" relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command" fi done relink_command="(cd `pwd`; $relink_command)" relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"` fi # Only actually do things if not in dry run mode. $opt_dry_run || { # win32 will think the script is a binary if it has # a .exe suffix, so we strip it off here. case $output in *.exe) func_stripname '' '.exe' "$output" output=$func_stripname_result ;; esac # test for cygwin because mv fails w/o .exe extensions case $host in *cygwin*) exeext=.exe func_stripname '' '.exe' "$outputname" outputname=$func_stripname_result ;; *) exeext= ;; esac case $host in *cygwin* | *mingw* ) func_dirname_and_basename "$output" "" "." output_name=$func_basename_result output_path=$func_dirname_result cwrappersource=$output_path/$objdir/lt-$output_name.c cwrapper=$output_path/$output_name.exe $RM $cwrappersource $cwrapper trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15 func_emit_cwrapperexe_src > $cwrappersource # The wrapper executable is built using the $host compiler, # because it contains $host paths and files. If cross- # compiling, it, like the target executable, must be # executed on the $host or under an emulation environment. $opt_dry_run || { $LTCC $LTCFLAGS -o $cwrapper $cwrappersource $STRIP $cwrapper } # Now, create the wrapper script for func_source use: func_ltwrapper_scriptname $cwrapper $RM $func_ltwrapper_scriptname_result trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15 $opt_dry_run || { # note: this script will not be executed, so do not chmod. if test "x$build" = "x$host"; then $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result else func_emit_wrapper no > $func_ltwrapper_scriptname_result fi } ;; * ) $RM $output trap "$RM $output; exit $EXIT_FAILURE" 1 2 15 func_emit_wrapper no > $output chmod +x $output ;; esac } exit $EXIT_SUCCESS ;; esac # See if we need to build an old-fashioned archive. for oldlib in $oldlibs; do case $build_libtool_libs in convenience) oldobjs="$libobjs_save $symfileobj" addlibs=$convenience build_libtool_libs=no ;; module) oldobjs=$libobjs_save addlibs=$old_convenience build_libtool_libs=no ;; *) oldobjs="$old_deplibs $non_pic_objects" $preload && test -f "$symfileobj" \ && func_append oldobjs " $symfileobj" addlibs=$old_convenience ;; esac if test -n "$addlibs"; then gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $addlibs func_append oldobjs " $func_extract_archives_result" fi # Do each command in the archive commands. if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then cmds=$old_archive_from_new_cmds else # Add any objects from preloaded convenience libraries if test -n "$dlprefiles"; then gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_extract_archives $gentop $dlprefiles func_append oldobjs " $func_extract_archives_result" fi # POSIX demands no paths to be encoded in archives. We have # to avoid creating archives with duplicate basenames if we # might have to extract them afterwards, e.g., when creating a # static archive out of a convenience library, or when linking # the entirety of a libtool archive into another (currently # not supported by libtool). if (for obj in $oldobjs do func_basename "$obj" $ECHO "$func_basename_result" done | sort | sort -uc >/dev/null 2>&1); then : else echo "copying selected object files to avoid basename conflicts..." gentop=$output_objdir/${outputname}x func_append generated " $gentop" func_mkdir_p "$gentop" save_oldobjs=$oldobjs oldobjs= counter=1 for obj in $save_oldobjs do func_basename "$obj" objbase=$func_basename_result case " $oldobjs " in " ") oldobjs=$obj ;; *[\ /]"$objbase "*) while :; do # Make sure we don't pick an alternate name that also # overlaps. newobj=lt$counter-$objbase func_arith $counter + 1 counter=$func_arith_result case " $oldobjs " in *[\ /]"$newobj "*) ;; *) if test ! -f "$gentop/$newobj"; then break; fi ;; esac done func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj" func_append oldobjs " $gentop/$newobj" ;; *) func_append oldobjs " $obj" ;; esac done fi func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 tool_oldlib=$func_to_tool_file_result eval cmds=\"$old_archive_cmds\" func_len " $cmds" len=$func_len_result if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then cmds=$old_archive_cmds elif test -n "$archiver_list_spec"; then func_verbose "using command file archive linking..." for obj in $oldobjs do func_to_tool_file "$obj" $ECHO "$func_to_tool_file_result" done > $output_objdir/$libname.libcmd func_to_tool_file "$output_objdir/$libname.libcmd" oldobjs=" $archiver_list_spec$func_to_tool_file_result" cmds=$old_archive_cmds else # the command line is too long to link in one step, link in parts func_verbose "using piecewise archive linking..." save_RANLIB=$RANLIB RANLIB=: objlist= concat_cmds= save_oldobjs=$oldobjs oldobjs= # Is there a better way of finding the last object in the list? 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((indent-tabs-mode . nil) (c-basic-offset . 2)))) �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/.gitignore�����������������������������������������������������������������������������0000664�0001750�0001750�00000005777�13562557674�011725� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������*~ *.a *.annot *.cma *.cmi *.cmo *.cmx *.cmxa *.la *.lo *.log *.o *.so *.pyc *.trs /libnbd-[0-9]*[0-9]/ /libnbd-*.tar.gz /local* .deps .libs Makefile Makefile.in /aclocal.m4 /autom4te.cache /compile /config.cache /config.guess /config.h /config.h.in /config.log /config.status /config.sub /configure /depcomp /docs/*.1 /docs/*.3 /docs/*.pod /docs/Makefile.inc !/docs/libnbd.pod !/docs/libnbd-release-notes-*.pod !/docs/libnbd-security.pod !/docs/nbd_close.3 !/docs/nbd_create.pod !/docs/nbd_get_err??.3 /examples/aio-connect-read /examples/batched-read-write /examples/connect-command /examples/encryption /examples/fetch-first-sector /examples/get-size /examples/glib-main-loop /examples/open-qcow2 /examples/reads-and-writes /examples/server-flags /examples/strict-structured-reads /examples/threaded-reads-and-writes /fuse/nbdfuse /fuse/nbdfuse.1 /fuzzing/libnbd-fuzz-wrapper /fuzzing/libnbd-libfuzzer-test /fuzzing/sync_dir/ /fuzzing/testcase_dir/[0-f]* /generator/generator-cache.v1 /generator/stamp-generator /html/*.?.html /include/libnbd.h /interop/dirty-bitmap /interop/interop-nbdkit /interop/interop-nbdkit-tls-certs /interop/interop-nbdkit-tls-certs-allow-enabled /interop/interop-nbdkit-tls-certs-allow-fallback /interop/interop-nbdkit-tls-psk /interop/interop-nbdkit-tls-psk-allow-enabled /interop/interop-nbdkit-tls-psk-allow-fallback /interop/interop-nbd-server /interop/interop-qemu-nbd /interop/interop-qemu-nbd-tls-certs /interop/interop-qemu-nbd-tls-psk /interop/socket-activation-nbdkit /interop/socket-activation-qemu-nbd /interop/structured-read /lib/api.c /lib/libnbd.pc /lib/libnbd.syms /lib/states.c /lib/states-run.c /lib/states.h /lib/unlocked.h /install-sh /libtool /ltmain.sh /m4/libtool.m4 /m4/ltoptions.m4 /m4/ltsugar.m4 /m4/ltversion.m4 /m4/lt~obsolete.m4 /missing /ocaml/.depend /ocaml/examples/.depend /ocaml/examples/*.bc /ocaml/examples/*.opt /ocaml/libnbd-ocaml.3 /ocaml/libnbdocaml.a /ocaml/META /ocaml/NBD.ml /ocaml/NBD.mli /ocaml/nbd-c.c /ocaml/stamp-mlnbd /ocaml/tests/.depend /ocaml/tests/*.bc /ocaml/tests/*.opt /podwrapper.pl /python/libnbdmod.c /python/methods.c /python/methods.h /python/nbd.py /python/run-python-tests /run /sh/nbdsh /sh/nbdsh.1 /stamp-h1 /test-driver /tests/aio-parallel /tests/aio-parallel-load /tests/aio-parallel-load-tls /tests/aio-parallel-tls /tests/can-*-flag /tests/close-null /tests/closure-lifetimes /tests/compile-ansi-c /tests/compile-c /tests/compile-cxx /tests/compile-header-only /tests/connect-tcp /tests/connect-tls-certs /tests/connect-tls-psk /tests/connect-unix /tests/connect-uri-nbd /tests/connect-uri-nbd-unix /tests/connect-uri-nbds /tests/connect-uri-nbds-unix /tests/connect-uri-nbds-psk /tests/debug /tests/debug-environment /tests/errors /tests/export-name /tests/functions.sh /tests/get-size /tests/is-rotational-flag /tests/is-not-rotational-flag /tests/keys.psk /tests/meta-base-allocation /tests/oldstyle /tests/version /tests/pki/ /tests/read-only-flag /tests/read-write-flag /tests/server-death /tests/synch-parallel /tests/synch-parallel-tls /valgrind/suppressions �libnbd-1.2.2/SECURITY�������������������������������������������������������������������������������0000664�0001750�0001750�00000001130�13546661321�011065� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������If you think you've found a serious or potential security bug that you don't want to report on a public mailing list, then send email to both <rjones@redhat.com> and <eblake@redhat.com>. Make it clear in the email Subject line that it's a serious or security-related bug in libnbd. You can also sign and/or encrypt messages using our GPG public keys available on the usual keyservers. For information about past security issues, see docs/libnbd-security.pod, or the libnbd-security(1) man page if you have installed libnbd, also available online here: http://libguestfs.org/libnbd-security.3.html ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/�����������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�011755� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/Makefile.am������������������������������������������������������������������0000664�0001750�0001750�00000005117�13546661321�013726� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk DISTCLEANFILES = stamp-generator # Note: These are not source files. 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then \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo "No ocaml toplevel, skipping the generator."; \ @HAVE_OCAML_TOPLEVEL_FALSE@ touch $@; \ @HAVE_OCAML_TOPLEVEL_FALSE@ else \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo; \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo " *** *** ***"; \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo; \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo "Source files are missing from your build."; \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo; \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo "Install the OCaml toplevel (the program called ‘ocaml’)"; \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo "and rerun ./configure && make"; \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo; \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo " *** *** ***"; \ @HAVE_OCAML_TOPLEVEL_FALSE@ echo; \ @HAVE_OCAML_TOPLEVEL_FALSE@ exit 1; \ @HAVE_OCAML_TOPLEVEL_FALSE@ fi # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: ������������������������������������������������������������������������������������libnbd-1.2.2/generator/generator��������������������������������������������������������������������0000775�0001750�0001750�00000625210�13616543273�013613� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env ocaml (* hey emacs, this is OCaml code: -*- tuareg -*- *) (* nbd client library in userspace: generator * Copyright (C) 2013-2020 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) (* This script generates the state machine and language * bindings. After editing this file, run: * * generator/generator * * from the top source directory to regenerate output files. *) #load "str.cma" ;; #load "unix.cma" ;; open Unix open Printf ;; if not (Sys.file_exists "lib/handle.c") then failwith "Wrong directory! Don't run this script by hand." ;; (*----------------------------------------------------------------------*) (* The state machine. * * Each state has some associated C code which is called when * the state is entered, or when the state is re-entered because * of an external event. That code is not in this file, it's * in [generator/states*.c]. * * Each handle starts in the top level START state. * * When you enter a state, the associated C code for that state * runs. If the C code calls SET_NEXT_STATE and returns 0 then * the connection enters the next state without blocking. If the * C code calls SET_NEXT_STATE_AND_BLOCK and returns 0 then the * connection blocks, but will resume with the code for the next * state on the next external event. If the C code does _not_ * call either macro but returns 0, the state machine is blocked * and will not be re-entered until an external event happens * (see below), where the same C code will be executed again on * re-entry. If the C code calls returns -1 after using * set_error(), then the state machine blocks and the caller * should report failure; the next external event will resume the * state machine according to whether SET_NEXT_STATE was used. * * There are various end states such as CLOSED and DEAD. These * are not special in relation to the above state transition rules, * it's just that they have no way to move to another state. However, * the DEAD state expects that set_error() was used in the previous * state, and will return -1 itself after performing cleanup actions; * the earlier state that wants to transition to DEAD should return 0 * rather than -1, so as not to bypass this cleanup. * * An external event is something like the file descriptor being * ready to read or write, or the main program calling a function * such as [nbd_aio_connect]. Possible external events, and the * next state resulting, are listed in the states table below. * * An empty string [""] for an external event’s next state means * the same state is re-entered. The same C code for the state * will be run again. * * States can be grouped hierarchically. States can be referred * to by an absolute path from the top level, such as ".DEAD", * or by a relative path from the current level, such as "CONNECT" * (another state at the same level), "REPLY.START" (a state in * a sub-group), or "^FINISH_COMMAND" (a state in the level above * the current one). When entering a group you must enter at the * START state. When leaving a group and going to a higher level * in the state tree there is no restriction on the next state. *) type external_event = | NotifyRead (* fd becomes ready to read *) | NotifyWrite (* fd becomes ready to write *) | CmdCreate (* [nbd_create] function called *) | CmdConnectSockAddr (* [nbd_aio_connect] function called *) | CmdConnectTCP (* [nbd_aio_connect_tcp] *) | CmdConnectCommand (* [nbd_aio_connect_command] *) | CmdConnectSA (* [nbd_aio_connect_systemd_socket_activation]*) | CmdConnectSocket (* [nbd_aio_connect_socket] *) | CmdIssue (* issuing an NBD command *) type location = string * int (* source location: file, line number *) let noloc = ("", 0) type state = { (* The state name (without prefix). If this has the special name * "START" then it is the start state of the current group. Each * group can only have one start state. *) name : string; comment : string; (* comment about the state *) (* Possible transitions from this state to a next state. The * external events are coded into the state table below. The * internal transitions are parsed out of the C code. *) external_events : (external_event * string) list; (* After flattening the state machine, the generator fills * in the extra fields in [state.parsed]. *) mutable parsed : parsed_state; } and parsed_state = { (* The hierarchy group prefix. For states in the top level * state machine this is an empty list. For states in the * next level down this is a single element, and so on. *) prefix : string list; (* Hierarchical state name, like "NEWSTYLE.OPT_STARTTLS.CHECK_REPLY" * for use in debug messages etc. *) display_name : string; (* The STATE_* enum used in the generated C code. *) state_enum : string; (* The C code implementing this state. *) loc : location; code : string; (* Internal transitions, parsed out of the C code. *) internal_transitions : state list; (* External events after resolving them to the destination states. *) events : (external_event * state) list; } let default_state = { name = ""; comment = ""; external_events = []; parsed = { prefix = []; display_name = ""; state_enum = ""; loc = noloc; code = ""; internal_transitions = []; events = [] } } (* The type of the hierarchical state machine. *) type state_machine = state_group list and state_group = | Group of string * state_machine (* string is name/prefix of the group *) | State of state (* Top level state machine. *) let rec state_machine = [ State { default_state with name = "START"; comment = "Handle after being initially created"; external_events = [ CmdCreate, ""; CmdConnectSockAddr, "CONNECT.START"; CmdConnectTCP, "CONNECT_TCP.START"; CmdConnectCommand, "CONNECT_COMMAND.START"; CmdConnectSA, "CONNECT_SA.START"; CmdConnectSocket, "MAGIC.START" ]; }; Group ("CONNECT", connect_state_machine); Group ("CONNECT_TCP", connect_tcp_state_machine); Group ("CONNECT_COMMAND", connect_command_state_machine); Group ("CONNECT_SA", connect_sa_state_machine); Group ("MAGIC", magic_state_machine); Group ("OLDSTYLE", oldstyle_state_machine); Group ("NEWSTYLE", newstyle_state_machine); State { default_state with name = "READY"; comment = "Connection is ready to process NBD commands"; external_events = [ CmdIssue, "ISSUE_COMMAND.START"; NotifyRead, "REPLY.START" ]; }; Group ("ISSUE_COMMAND", issue_command_state_machine); Group ("REPLY", reply_state_machine); State { default_state with name = "DEAD"; comment = "Connection is in an unrecoverable error state, can only be closed"; }; State { default_state with name = "CLOSED"; comment = "Connection is closed"; }; ] (* State machine implementing [nbd_aio_connect]. *) and connect_state_machine = [ State { default_state with name = "START"; comment = "Initial call to connect(2) on the socket"; external_events = [ NotifyWrite, "CONNECTING" ]; }; State { default_state with name = "CONNECTING"; comment = "Connecting to the remote server"; external_events = [ NotifyWrite, "" ]; }; ] (* State machine implementing [nbd_aio_connect_tcp]. *) and connect_tcp_state_machine = [ State { default_state with name = "START"; comment = "Connect to a remote TCP server"; external_events = []; }; State { default_state with name = "CONNECT"; comment = "Initial call to connect(2) on a TCP socket"; external_events = [ NotifyWrite, "CONNECTING" ]; }; State { default_state with name = "CONNECTING"; comment = "Connecting to the remote server over a TCP socket"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "NEXT_ADDRESS"; comment = "Connecting to the next address over a TCP socket"; external_events = []; }; ] (* State machine implementing [nbd_aio_connect_command]. *) and connect_command_state_machine = [ State { default_state with name = "START"; comment = "Connect to a subprocess"; external_events = []; }; ] (* State machine implementing [nbd_aio_connect_systemd_socket_activation]. *) and connect_sa_state_machine = [ State { default_state with name = "START"; comment = "Connect to a subprocess with systemd socket activation"; external_events = []; }; ] (* Parse initial magic string from the server. *) and magic_state_machine = [ State { default_state with name = "START"; comment = "Prepare to receive the magic identification from remote"; external_events = []; }; State { default_state with name = "RECV_MAGIC"; comment = "Receive initial magic identification from remote"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "CHECK_MAGIC"; comment = "Check magic and version sent by remote"; }; ] (* Oldstyle handshake. *) and oldstyle_state_machine = [ State { default_state with name = "START"; comment = "Prepare to receive remainder of oldstyle header"; external_events = []; }; State { default_state with name = "RECV_REMAINING"; comment = "Receive remainder of oldstyle header"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "CHECK"; comment = "Check oldstyle header"; external_events = []; }; ] (* Fixed newstyle handshake. *) and newstyle_state_machine = [ State { default_state with name = "START"; comment = "Prepare to receive newstyle gflags from remote"; external_events = []; }; State { default_state with name = "RECV_GFLAGS"; comment = "Receive newstyle gflags from remote"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "CHECK_GFLAGS"; comment = "Check global flags sent by remote"; }; State { default_state with name = "SEND_CFLAGS"; comment = "Send newstyle client flags to remote"; external_events = [ NotifyWrite, "" ]; }; (* Options. These state groups are always entered unconditionally, * in this order. The START state in each group will check if the * state needs to run and skip to the next state in the list if not. *) Group ("OPT_STARTTLS", newstyle_opt_starttls_state_machine); Group ("OPT_STRUCTURED_REPLY", newstyle_opt_structured_reply_state_machine); Group ("OPT_SET_META_CONTEXT", newstyle_opt_set_meta_context_state_machine); Group ("OPT_GO", newstyle_opt_go_state_machine); Group ("OPT_EXPORT_NAME", newstyle_opt_export_name_state_machine); (* When option parsing has successfully finished negotiation * it will jump to this state for final steps before moving to * the %READY state. *) State { default_state with name = "FINISHED"; comment = "Finish off newstyle negotiation"; }; ] (* Fixed newstyle NBD_OPT_STARTTLS option. *) and newstyle_opt_starttls_state_machine = [ State { default_state with name = "START"; comment = "Try to send newstyle NBD_OPT_STARTTLS to upgrade to TLS"; external_events = []; }; State { default_state with name = "SEND"; comment = "Send newstyle NBD_OPT_STARTTLS to upgrade to TLS"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "RECV_REPLY"; comment = "Receive newstyle NBD_OPT_STARTTLS reply"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "RECV_REPLY_PAYLOAD"; comment = "Receive any newstyle NBD_OPT_STARTTLS reply payload"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "CHECK_REPLY"; comment = "Check newstyle NBD_OPT_STARTTLS reply"; external_events = []; }; State { default_state with name = "TLS_HANDSHAKE_READ"; comment = "TLS handshake (reading)"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "TLS_HANDSHAKE_WRITE"; comment = "TLS handshake (writing)"; external_events = [ NotifyWrite, "" ]; }; ] (* Fixed newstyle NBD_OPT_STRUCTURED_REPLY option. *) and newstyle_opt_structured_reply_state_machine = [ State { default_state with name = "START"; comment = "Try to negotiate newstyle NBD_OPT_STRUCTURED_REPLY"; external_events = []; }; State { default_state with name = "SEND"; comment = "Send newstyle NBD_OPT_STRUCTURED_REPLY negotiation request"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "RECV_REPLY"; comment = "Receive newstyle NBD_OPT_STRUCTURED_REPLY option reply"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "RECV_REPLY_PAYLOAD"; comment = "Receive any newstyle NBD_OPT_STRUCTURED_REPLY reply payload"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "CHECK_REPLY"; comment = "Check newstyle NBD_OPT_STRUCTURED_REPLY option reply"; external_events = []; }; ] (* Fixed newstyle NBD_OPT_SET_META_CONTEXT option. *) and newstyle_opt_set_meta_context_state_machine = [ State { default_state with name = "START"; comment = "Try to negotiate newstyle NBD_OPT_SET_META_CONTEXT"; external_events = []; }; State { default_state with name = "SEND"; comment = "Send newstyle NBD_OPT_SET_META_CONTEXT"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "SEND_EXPORTNAMELEN"; comment = "Send newstyle NBD_OPT_SET_META_CONTEXT export name length"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "SEND_EXPORTNAME"; comment = "Send newstyle NBD_OPT_SET_META_CONTEXT export name"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "SEND_NRQUERIES"; comment = "Send newstyle NBD_OPT_SET_META_CONTEXT number of queries"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "PREPARE_NEXT_QUERY"; comment = "Prepare to send newstyle NBD_OPT_SET_META_CONTEXT query"; external_events = []; }; State { default_state with name = "SEND_QUERYLEN"; comment = "Send newstyle NBD_OPT_SET_META_CONTEXT query length"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "SEND_QUERY"; comment = "Send newstyle NBD_OPT_SET_META_CONTEXT query"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "PREPARE_FOR_REPLY"; comment = "Prepare to receive newstyle NBD_OPT_SET_META_CONTEXT option reply"; external_events = []; }; State { default_state with name = "RECV_REPLY"; comment = "Receive newstyle NBD_OPT_SET_META_CONTEXT option reply"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "RECV_REPLY_PAYLOAD"; comment = "Receive newstyle NBD_OPT_SET_META_CONTEXT option reply payload"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "CHECK_REPLY"; comment = "Check newstyle NBD_OPT_SET_META_CONTEXT option reply"; external_events = []; }; ] (* Fixed newstyle NBD_OPT_GO option. *) and newstyle_opt_go_state_machine = [ State { default_state with name = "START"; comment = "Try to send newstyle NBD_OPT_GO to end handshake"; external_events = []; }; State { default_state with name = "SEND"; comment = "Send newstyle NBD_OPT_GO to end handshake"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "SEND_EXPORTNAMELEN"; comment = "Send newstyle NBD_OPT_GO export name length"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "SEND_EXPORT"; comment = "Send newstyle NBD_OPT_GO export name"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "SEND_NRINFOS"; comment = "Send newstyle NBD_OPT_GO number of infos"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "RECV_REPLY"; comment = "Receive newstyle NBD_OPT_GO reply"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "RECV_REPLY_PAYLOAD"; comment = "Receive newstyle NBD_OPT_GO reply payload"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "CHECK_REPLY"; comment = "Check newstyle NBD_OPT_GO reply"; external_events = []; }; ] (* Newstyle NBD_OPT_EXPORT_NAME option. *) and newstyle_opt_export_name_state_machine = [ State { default_state with name = "START"; comment = "Try to send newstyle NBD_OPT_EXPORT_NAME to end handshake"; external_events = []; }; State { default_state with name = "SEND"; comment = "Send newstyle NBD_OPT_EXPORT_NAME to end handshake"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "SEND_EXPORT"; comment = "Send newstyle NBD_OPT_EXPORT_NAME export name"; external_events = [ NotifyWrite, "" ]; }; State { default_state with name = "RECV_REPLY"; comment = "Receive newstyle NBD_OPT_EXPORT_NAME reply"; external_events = [ NotifyRead, "" ]; }; State { default_state with name = "CHECK_REPLY"; comment = "Check newstyle NBD_OPT_EXPORT_NAME reply"; external_events = []; }; ] (* Sending a command to the server. *) and issue_command_state_machine = [ State { default_state with name = "START"; comment = "Begin issuing a command to the remote server"; external_events = []; }; State { default_state with name = "SEND_REQUEST"; comment = "Sending a request to the remote server"; external_events = [ NotifyWrite, ""; NotifyRead, "PAUSE_SEND_REQUEST" ]; }; State { default_state with name = "PAUSE_SEND_REQUEST"; comment = "Interrupt send request to receive an earlier command's reply"; external_events = []; }; State { default_state with name = "PREPARE_WRITE_PAYLOAD"; comment = "Prepare the write payload to send to the remote server"; external_events = []; }; State { default_state with name = "SEND_WRITE_PAYLOAD"; comment = "Sending the write payload to the remote server"; external_events = [ NotifyWrite, ""; NotifyRead, "PAUSE_WRITE_PAYLOAD" ]; }; State { default_state with name = "PAUSE_WRITE_PAYLOAD"; comment = "Interrupt write payload to receive an earlier command's reply"; external_events = []; }; State { default_state with name = "FINISH"; comment = "Finish issuing a command"; external_events = []; }; ] (* Receiving a reply from the server. *) and reply_state_machine = [ State { default_state with name = "START"; comment = "Prepare to receive a reply from the remote server"; external_events = []; }; State { default_state with name = "RECV_REPLY"; comment = "Receive a reply from the remote server"; external_events = []; }; State { default_state with name = "CHECK_SIMPLE_OR_STRUCTURED_REPLY"; comment = "Check if the reply is a simple or structured reply"; external_events = []; }; Group ("SIMPLE_REPLY", simple_reply_state_machine); Group ("STRUCTURED_REPLY", structured_reply_state_machine); State { default_state with name = "FINISH_COMMAND"; comment = "Finish receiving a command"; external_events = []; }; ] (* Receiving a simple reply from the server. *) and simple_reply_state_machine = [ State { default_state with name = "START"; comment = "Parse a simple reply from the server"; external_events = []; }; State { default_state with name = "RECV_READ_PAYLOAD"; comment = "Receiving the read payload for a simple reply"; external_events = []; }; ] (* Receiving a structured reply from the server. *) and structured_reply_state_machine = [ State { default_state with name = "START"; comment = "Prepare to receive the remaining part of a structured reply"; external_events = []; }; State { default_state with name = "RECV_REMAINING"; comment = "Receiving the remaining part of a structured reply"; external_events = []; }; State { default_state with name = "CHECK"; comment = "Parse a structured reply from the server"; external_events = []; }; State { default_state with name = "RECV_ERROR"; comment = "Receive a structured reply error header"; external_events = [] }; State { default_state with name = "RECV_ERROR_MESSAGE"; comment = "Receive a structured reply error message"; external_events = []; }; State { default_state with name = "RECV_ERROR_TAIL"; comment = "Receive a structured reply error tail"; external_events = []; }; State { default_state with name = "RECV_OFFSET_DATA"; comment = "Receive a structured reply offset-data header"; external_events = []; }; State { default_state with name = "RECV_OFFSET_DATA_DATA"; comment = "Receive a structured reply offset-data block of data"; external_events = []; }; State { default_state with name = "RECV_OFFSET_HOLE"; comment = "Receive a structured reply offset-hole header"; external_events = []; }; State { default_state with name = "RECV_BS_ENTRIES"; comment = "Receive a structured reply block-status payload"; external_events = []; }; State { default_state with name = "FINISH"; comment = "Finish receiving a structured reply"; external_events = []; }; ] (*----------------------------------------------------------------------*) (* The API. *) type call = { args : arg list; (* parameters (except handle) *) optargs : optarg list; (* optional parameters (not optional in C) *) ret : ret; (* return value *) shortdesc : string; (* short description *) longdesc : string; (* long description *) example : string option; (* path to example code (under top_srcdir) *) see_also : string list; (* "SEE ALSO" section in man page *) (* List of permitted states for making this call. [[]] = Any state. *) permitted_states : permitted_state list; (* Most functions must take a lock. The only known exceptions are: * - functions which return a constant (eg. [nbd_supports_uri]) * - functions which {b only} read from the atomic * [get_public_state] and do nothing else with the handle. *) is_locked : bool; (* Most functions can call set_error. For functions which are * {b guaranteed} never to do that we can save a bit of time by * setting this to false. *) may_set_error : bool; (* The first stable version that the symbol appeared in, for * example (1, 2) if the symbol was added in development cycle * 1.1.x and thus the first stable version was 1.2. This is * filled in by the generator, add new calls to the first_version * table instead. *) mutable first_version : int * int; } and arg = | Bool of string (* bool *) | BytesIn of string * string (* byte array + size passed in to the function *) | BytesOut of string * string(* byte array + size specified by caller, written by the function *) | BytesPersistIn of string * string (* same as above, but buffer persists *) | BytesPersistOut of string * string | Closure of closure (* function pointer + void *opaque *) | Enum of string * enum (* enum/union type, int in C *) | Fd of string (* file descriptor *) | Flags of string * flags (* flags, uint32_t in C *) | Int of string (* small int *) | Int64 of string (* 64 bit signed int *) | Path of string (* filename or path *) | SockAddrAndLen of string * string (* struct sockaddr * + socklen_t *) | String of string (* string, cannot be NULL *) | StringList of string (* argv-style NULL-terminated array of strings *) | UInt of string (* small unsigned int *) | UInt32 of string (* 32 bit unsigned int *) | UInt64 of string (* 64 bit unsigned int *) and optarg = | OClosure of closure (* optional closure *) | OFlags of string * flags (* optional flags, uint32_t in C *) and ret = | RBool (* return a boolean, or error *) | RStaticString (* return a static string (must be located in .text section), NULL for error *) | RErr (* return 0 = ok, -1 = error *) | RFd (* return a file descriptor, or error *) | RInt (* return a small int, -1 = error *) | RInt64 (* 64 bit int, -1 = error *) | RCookie (* 64 bit command cookie (>= 1), -1 = error *) | RString (* return a newly allocated string, caller frees, NULL for error *) | RUInt (* return a bitmask, no error possible *) and closure = { cbname : string; (* name of callback function *) cbargs : cbarg list; (* all closures return int for now *) } and cbarg = | CBArrayAndLen of arg * string (* array + number of entries *) | CBBytesIn of string * string (* like BytesIn *) | CBInt of string (* like Int *) | CBInt64 of string (* like Int64 *) | CBMutable of arg (* mutable argument, eg. int* *) | CBString of string (* like String *) | CBUInt of string (* like UInt *) | CBUInt64 of string (* like UInt64 *) and enum = { enum_prefix : string; (* prefix of each enum variant *) enums : (string * int) list (* enum names and their values in C *) } and flags = { flag_prefix : string; (* prefix of each flag name *) flags : (string * int) list (* flag names and their values in C *) } and permitted_state = | Created (* can be called in the START state *) | Connecting (* can be called when connecting/handshaking *) | Connected (* when connected and READY or processing, but not including CLOSED or DEAD *) | Closed | Dead (* can be called when the handle is CLOSED or DEAD *) let default_call = { args = []; optargs = []; ret = RErr; shortdesc = ""; longdesc = ""; example = None; see_also = []; permitted_states = []; is_locked = true; may_set_error = true; first_version = (0, 0) } let non_blocking_test_call_description = "\n This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake." (* Closures. *) let chunk_closure = { cbname = "chunk"; cbargs = [ CBBytesIn ("subbuf", "count"); CBUInt64 "offset"; CBUInt "status"; CBMutable (Int "error") ] } let completion_closure = { cbname = "completion"; cbargs = [ CBMutable (Int "error") ] } let debug_closure = { cbname = "debug"; cbargs = [ CBString "context"; CBString "msg" ] } let extent_closure = { cbname = "extent"; cbargs = [ CBString "metacontext"; CBUInt64 "offset"; CBArrayAndLen (UInt32 "entries", "nr_entries"); CBMutable (Int "error") ] } let all_closures = [ chunk_closure; completion_closure; debug_closure; extent_closure ] (* Enums. *) let tls_enum = { enum_prefix = "TLS"; enums = [ "DISABLE", 0; "ALLOW", 1; "REQUIRE", 2; ] } let all_enums = [ tls_enum ] (* Flags. *) let cmd_flags = { flag_prefix = "CMD_FLAG"; flags = [ "FUA", 1 lsl 0; "NO_HOLE", 1 lsl 1; "DF", 1 lsl 2; "REQ_ONE", 1 lsl 3; "FAST_ZERO", 1 lsl 4; ] } let handshake_flags = { flag_prefix = "HANDSHAKE_FLAG"; flags = [ "FIXED_NEWSTYLE", 1 lsl 0; "NO_ZEROES", 1 lsl 1; ] } let allow_transport_flags = { flag_prefix = "ALLOW_TRANSPORT"; flags = [ "TCP", 1 lsl 0; "UNIX", 1 lsl 1; "VSOCK", 1 lsl 2; ] } let all_flags = [ cmd_flags; handshake_flags; allow_transport_flags ] (* Calls. * * The first parameter [struct nbd_handle *nbd] is implicit. * * Disable: * Warning 23: all the fields are explicitly listed in this record: *) let [@warning "-23"] handle_calls = [ "set_debug", { default_call with args = [ Bool "debug" ]; ret = RErr; shortdesc = "set or clear the debug flag"; longdesc = "\ Set or clear the debug flag. When debugging is enabled, debugging messages from the library are printed to stderr, unless a debugging callback has been defined too (see L<nbd_set_debug_callback(3)>) in which case they are sent to that function. This flag defaults to false on newly created handles, except if C<LIBNBD_DEBUG=1> is set in the environment in which case it defaults to true."; see_also = ["L<nbd_set_handle_name(3)>"; "L<nbd_set_debug_callback(3)>"]; }; "get_debug", { default_call with args = []; ret = RBool; may_set_error = false; shortdesc = "return the state of the debug flag"; longdesc = "\ Return the state of the debug flag on this handle."; }; "set_debug_callback", { default_call with args = [ Closure debug_closure ]; ret = RErr; shortdesc = "set the debug callback"; longdesc = "\ Set the debug callback. This function is called when the library emits debug messages, when debugging is enabled on a handle. The callback parameters are C<user_data> passed to this function, the name of the libnbd function emitting the debug message (C<context>), and the message itself (C<msg>). If no debug callback is set on a handle then messages are printed on C<stderr>. The callback should not call C<nbd_*> APIs on the same handle since it can be called while holding the handle lock and will cause a deadlock."; }; "clear_debug_callback", { default_call with args = []; ret = RErr; shortdesc = "clear the debug callback"; longdesc = "\ Remove the debug callback if one was previously associated with the handle (with L<nbd_set_debug_callback(3)>). If no callback was associated this does nothing."; }; "set_handle_name", { default_call with args = [ String "handle_name" ]; ret = RErr; shortdesc = "set the handle name"; longdesc = "\ Handles have a name which is unique within the current process. The handle name is used in debug output. Handle names are normally generated automatically and have the form C<\"nbd1\">, C<\"nbd2\">, etc., but you can optionally use this call to give the handles a name which is meaningful for your application to make debugging output easier to understand."; }; "get_handle_name", { default_call with args = []; ret = RString; shortdesc = "get the handle name"; longdesc = "\ Get the name of the handle. If it was previously set by calling L<nbd_set_handle_name(3)> then this returns the name that was set. Otherwise it will return a generic name like C<\"nbd1\">, C<\"nbd2\">, etc."; }; "set_export_name", { default_call with args = [ String "export_name" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "set the export name"; longdesc = "\ For servers which require an export name or can serve different content on different exports, set the C<export_name> to connect to. The default is the empty string C<\"\">. This is only relevant when connecting to servers using the newstyle protocol as the oldstyle protocol did not support export names. The NBD protocol limits export names to 4096 bytes, but servers may not support the full length. The encoding of export names is always UTF-8. This call may be skipped if using L<nbd_connect_uri(3)> to connect to a URI that includes an export name."; see_also = ["L<nbd_get_export_name(3)>"; "L<nbd_connect_uri(3)>"]; }; "get_export_name", { default_call with args = []; ret = RString; shortdesc = "get the export name"; longdesc = "\ Get the export name associated with the handle."; see_also = ["L<nbd_set_export_name(3)>"; "L<nbd_connect_uri(3)>"]; }; "set_tls", { default_call with args = [Enum ("tls", tls_enum)]; ret = RErr; permitted_states = [ Created ]; shortdesc = "enable or require TLS (authentication and encryption)"; longdesc = "\ Enable or require TLS (authenticated and encrypted connections) to the NBD server. The possible settings are: =over 4 =item C<LIBNBD_TLS_DISABLE> Disable TLS. (The default setting, unless using L<nbd_connect_uri(3)> with a URI that requires TLS) =item C<LIBNBD_TLS_ALLOW> Enable TLS if possible. This option is insecure (or best effort) in that in some cases it will fall back to an unencrypted and/or unauthenticated connection if TLS could not be established. Use C<LIBNBD_TLS_REQUIRE> below if the connection must be encrypted. Some servers will drop the connection if TLS fails so fallback may not be possible. =item C<LIBNBD_TLS_REQUIRE> Require an encrypted and authenticated TLS connection. Always fail to connect if the connection is not encrypted and authenticated. =back As well as calling this you may also need to supply the path to the certificates directory (L<nbd_set_tls_certificates(3)>), the username (L<nbd_set_tls_username(3)>) and/or the Pre-Shared Keys (PSK) file (L<nbd_set_tls_psk_file(3)>). For now, when using L<nbd_connect_uri(3)>, any URI query parameters related to TLS are not handled automatically. Setting the level higher than zero will fail if libnbd was not compiled against gnutls; you can test whether this is the case with L<nbd_supports_tls(3)>."; example = Some "examples/encryption.c"; see_also = ["L<libnbd(3)/ENCRYPTION AND AUTHENTICATION>"; "L<nbd_get_tls(3)>"; "L<nbd_get_tls_negotiated(3)>"]; }; "get_tls", { default_call with args = []; ret = RInt; may_set_error = false; shortdesc = "get the TLS request setting"; longdesc = "\ Get the TLS request setting. B<Note:> If you want to find out if TLS was actually negotiated on a particular connection use L<nbd_get_tls_negotiated(3)> instead."; see_also = ["L<nbd_set_tls(3)>"; "L<nbd_get_tls_negotiated(3)>"]; }; "get_tls_negotiated", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "find out if TLS was negotiated on a connection"; longdesc = "\ After connecting you may call this to find out if the connection is using TLS. This is only really useful if you set the TLS request mode to C<LIBNBD_TLS_ALLOW> (see L<nbd_set_tls(3)>), because in this mode we try to use TLS but fall back to unencrypted if it was not available. This function will tell you if TLS was negotiated or not. In C<LIBNBD_TLS_REQUIRE> mode (the most secure) the connection would have failed if TLS could not be negotiated, and in C<LIBNBD_TLS_DISABLE> mode TLS is not tried."; see_also = ["L<nbd_set_tls(3)>"; "L<nbd_get_tls(3)>"]; }; "set_tls_certificates", { default_call with args = [Path "dir"]; ret = RErr; permitted_states = [ Created ]; shortdesc = "set the path to the TLS certificates directory"; longdesc = "\ Set the path to the TLS certificates directory. If not set and TLS is used then a compiled in default is used. For root this is C</etc/pki/libnbd/>. For non-root this is C<$HOME/.pki/libnbd> and C<$HOME/.config/pki/libnbd>. If none of these directories can be found then the system trusted CAs are used. This function may be called regardless of whether TLS is supported, but will have no effect unless L<nbd_set_tls(3)> is also used to request or require TLS."; }; (* Can't implement this because we need a way to return string that can be NULL. "get_tls_certificates", { default_call with args = []; ret = RString; shortdesc = "get the current TLS certificates directory"; longdesc = "\ Get the current TLS directory."; see_also = ["L<nbd_set_tls_certificates(3)>"]; }; *) "set_tls_verify_peer", { default_call with args = [Bool "verify"]; ret = RErr; permitted_states = [ Created ]; shortdesc = "set whether we verify the identity of the server"; longdesc = "\ Set this flag to control whether libnbd will verify the identity of the server from the server's certificate and the certificate authority. This defaults to true when connecting to TCP servers using TLS certificate authentication, and false otherwise. This function may be called regardless of whether TLS is supported, but will have no effect unless L<nbd_set_tls(3)> is also used to request or require TLS."; }; "get_tls_verify_peer", { default_call with args = []; ret = RBool; may_set_error = false; shortdesc = "get whether we verify the identity of the server"; longdesc = "\ Get the verify peer flag."; }; "set_tls_username", { default_call with args = [String "username"]; ret = RErr; permitted_states = [ Created ]; shortdesc = "set the TLS username"; longdesc = "\ Set the TLS client username. This is used if authenticating with PSK over TLS is enabled. If not set then the local username is used. This function may be called regardless of whether TLS is supported, but will have no effect unless L<nbd_set_tls(3)> is also used to request or require TLS."; example = Some "examples/encryption.c"; }; "get_tls_username", { default_call with args = []; ret = RString; shortdesc = "get the current TLS username"; longdesc = "\ Get the current TLS username."; see_also = ["L<nbd_set_tls_username(3)>"]; }; "set_tls_psk_file", { default_call with args = [Path "filename"]; ret = RErr; permitted_states = [ Created ]; shortdesc = "set the TLS Pre-Shared Keys (PSK) filename"; longdesc = "\ Set the TLS Pre-Shared Keys (PSK) filename. This is used if trying to authenticate to the server using with a pre-shared key. There is no default so if this is not set then PSK authentication cannot be used to connect to the server. This function may be called regardless of whether TLS is supported, but will have no effect unless L<nbd_set_tls(3)> is also used to request or require TLS."; example = Some "examples/encryption.c"; }; (* Can't implement this because we need a way to return string that can be NULL. "get_tls_psk_file", { default_call with args = []; ret = RString; shortdesc = "get the current TLS PSK filename"; longdesc = "\ Get the current TLS PSK filename."; see_also = ["L<nbd_set_tls_psk_file(3)>"]; }; *) "set_request_structured_replies", { default_call with args = [Bool "request"]; ret = RErr; permitted_states = [ Created ]; shortdesc = "control use of structured replies"; longdesc = "\ By default, libnbd tries to negotiate structured replies with the server, as this protocol extension must be in use before C<nbd_can_meta_context> or C<nbd_can_df> can return true. However, for integration testing, it can be useful to clear this flag rather than find a way to alter the server to fail the negotiation request."; see_also = ["L<nbd_get_request_structured_replies(3)>"; "L<nbd_set_handshake_flags(3)>"; "L<nbd_get_structured_replies_negotiated(3)>"; "L<nbd_can_meta_context(3)>"; "L<nbd_can_df(3)>"]; }; "get_request_structured_replies", { default_call with args = []; ret = RBool; may_set_error = false; shortdesc = "see if structured replies are attempted"; longdesc = "\ Return the state of the request structured replies flag on this handle. B<Note:> If you want to find out if structured replies were actually negotiated on a particular connection use C<nbd_get_structured_replies_negotiated> instead."; see_also = ["L<nbd_set_request_structured_replies(3)>"; "L<nbd_get_structured_replies_negotiated(3)>"]; }; "get_structured_replies_negotiated", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "see if structured replies are in use"; longdesc = "\ After connecting you may call this to find out if the connection is using structured replies."; see_also = ["L<nbd_set_request_structured_replies(3)>"; "L<nbd_get_request_structured_replies(3)>"; "L<nbd_get_protocol(3)>"]; }; "set_handshake_flags", { default_call with args = [ Flags ("flags", handshake_flags) ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "control use of handshake flags"; longdesc = "\ By default, libnbd tries to negotiate all possible handshake flags that are also supported by the server; since omitting a handshake flag can prevent the use of other functionality such as TLS encryption or structured replies. However, for integration testing, it can be useful to reduce the set of flags supported by the client to test that a particular server can handle various clients that were compliant to older versions of the NBD specification. The C<flags> argument is a bitmask, including zero or more of the following handshake flags: =over 4 =item C<LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE> = 1 The server gracefully handles unknown option requests from the client, rather than disconnecting. Without this flag, a client cannot safely request to use extensions such as TLS encryption or structured replies, as the request may cause an older server to drop the connection. =item C<LIBNBD_HANDSHAKE_FLAG_NO_ZEROES> = 2 If the client is forced to use C<NBD_OPT_EXPORT_NAME> instead of the preferred C<NBD_OPT_GO>, this flag allows the server to send fewer all-zero padding bytes over the connection. =back Future NBD extensions may add further flags. "; see_also = ["L<nbd_get_handshake_flags(3)>"; "L<nbd_set_request_structured_replies(3)>"]; }; "get_handshake_flags", { default_call with args = []; ret = RUInt; may_set_error = false; shortdesc = "see which handshake flags are supported"; longdesc = "\ Return the state of the handshake flags on this handle. When the handle has not yet completed a connection (see C<nbd_aio_is_created>), this returns the flags that the client is willing to use, provided the server also advertises those flags. After the connection is ready (see C<nbd_aio_is_ready>), this returns the flags that were actually agreed on between the server and client. If the NBD protocol defines new handshake flags, then the return value from a newer library version may include bits that were undefined at the time of compilation."; see_also = ["L<nbd_set_handshake_flags(3)>"; "L<nbd_get_protocol(3)>"; "L<nbd_aio_is_created(3)>"; "L<nbd_aio_is_ready(3)>"]; }; "add_meta_context", { default_call with args = [ String "name" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "ask server to negotiate metadata context"; longdesc = "\ During connection libnbd can negotiate zero or more metadata contexts with the server. Metadata contexts are features (such as C<\"base:allocation\">) which describe information returned by the L<nbd_block_status(3)> command (for C<\"base:allocation\"> this is whether blocks of data are allocated, zero or sparse). This call adds one metadata context to the list to be negotiated. You can call it as many times as needed. The list is initially empty when the handle is created. The NBD protocol limits meta context names to 4096 bytes, but servers may not support the full length. The encoding of meta context names is always UTF-8. Not all servers support all metadata contexts. To learn if a context was actually negotiated, call L<nbd_can_meta_context(3)> after connecting. The single parameter is the name of the metadata context, for example C<LIBNBD_CONTEXT_BASE_ALLOCATION>. B<E<lt>libnbd.hE<gt>> includes defined constants beginning with C<LIBNBD_CONTEXT_> for some well-known contexts, but you are free to pass in other contexts. Other metadata contexts are server-specific, but include C<\"qemu:dirty-bitmap:...\"> for qemu-nbd (see qemu-nbd I<-B> option)."; see_also = ["L<nbd_block_status(3)>"]; }; "set_uri_allow_transports", { default_call with args = [ Flags ("mask", allow_transport_flags) ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "set the allowed transports in NBD URIs"; longdesc = "\ Set which transports are allowed to appear in NBD URIs. The default is to allow any transport. The C<mask> parameter may contain any of the following flags ORed together: =over 4 =item C<LIBNBD_ALLOW_TRANSPORT_TCP> =item C<LIBNBD_ALLOW_TRANSPORT_UNIX> =item C<LIBNBD_ALLOW_TRANSPORT_VSOCK> =back"; see_also = ["L<nbd_connect_uri(3)>"; "L<nbd_set_uri_allow_tls(3)>"]; }; "set_uri_allow_tls", { default_call with args = [ Enum ("tls", tls_enum) ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "set the allowed TLS settings in NBD URIs"; longdesc = "\ Set which TLS settings are allowed to appear in NBD URIs. The default is to allow either non-TLS or TLS URIs. The C<tls> parameter can be: =over 4 =item C<LIBNBD_TLS_DISABLE> TLS URIs are not permitted, ie. a URI such as C<nbds://...> will be rejected. =item C<LIBNBD_TLS_ALLOW> This is the default. TLS may be used or not, depending on whether the URI uses C<nbds> or C<nbd>. =item C<LIBNBD_TLS_REQUIRE> TLS URIs are required. All URIs must use C<nbds>. =back"; see_also = ["L<nbd_connect_uri(3)>"; "L<nbd_set_uri_allow_transports(3)>"]; }; "set_uri_allow_local_file", { default_call with args = [ Bool "allow" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "set the allowed transports in NBD URIs"; longdesc = "\ Allow NBD URIs to reference local files. This is I<disabled> by default. Currently this setting only controls whether the C<tls-psk-file> parameter in NBD URIs is allowed."; see_also = ["L<nbd_connect_uri(3)>"]; }; "connect_uri", { default_call with args = [ String "uri" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to NBD URI"; longdesc = "\ Connect (synchronously) to an NBD server and export by specifying the NBD URI. This call parses the URI and may call L<nbd_set_export_name(3)> and L<nbd_set_tls(3)> and other calls as needed, followed by L<nbd_connect_tcp(3)> or L<nbd_connect_unix(3)>. This call returns when the connection has been made. =head2 Example URIs supported =over 4 =item C<nbd://example.com> Connect over TCP, unencrypted, to C<example.com> port 10809. =item C<nbds://example.com> Connect over TCP with TLS, to C<example.com> port 10809. If the server does not support TLS then this will fail. =item C<nbd+unix:///foo?socket=/tmp/nbd.sock> Connect over the Unix domain socket F</tmp/nbd.sock> to an NBD server running locally. The export name is set to C<foo> (note without any leading C</> character). =item C<nbd+vsock:///> In this scenario libnbd is running in a virtual machine. Connect over C<AF_VSOCK> to an NBD server running on the hypervisor. =back =head2 Supported URI formats The following schemes are supported in the current version of libnbd: =over 4 =item C<nbd:> Connect over TCP without using TLS. =item C<nbds:> Connect over TCP. TLS is required and the connection will fail if the server does not support TLS. =item C<nbd+unix:> =item C<nbds+unix:> Connect over a Unix domain socket, without or with TLS respectively. The C<socket> parameter is required. =item C<nbd+vsock:> =item C<nbds+vsock:> Connect over the C<AF_VSOCK> transport, without or with TLS respectively. =back The authority part of the URI (C<[username@][servername][:port]>) is parsed depending on the transport. For TCP it specifies the server to connect to and optional port number. For C<+unix> it should not be present. For C<+vsock> the server name is the numeric CID (eg. C<2> to connect to the host), and the optional port number may be present. If the C<username> is present it is used for TLS authentication. For all transports, an export name may be present, parsed in accordance with the NBD URI specification. Finally the query part of the URI can contain: =over 4 =item B<socket=>F<SOCKET> Specifies the Unix domain socket to connect on. Must be present for the C<+unix> transport and must not be present for the other transports. =item B<tls-psk-file=>F<PSKFILE> Set the PSK file. See L<nbd_set_tls_psk_file(3)>. Note this is not allowed by default - see next section. =back =head2 Disable URI features For security reasons you might want to disable certain URI features. Pre-filtering URIs is error-prone and should not be attempted. Instead use the libnbd APIs below to control what can appear in URIs. Note you must call these functions on the same handle before calling C<nbd_connect_uri> or L<nbd_aio_connect_uri(3)>. =over 4 =item TCP, Unix domain socket or C<AF_VSOCK> transports Default: all allowed To select which transports are allowed call L<nbd_set_uri_allow_transports(3)>. =item TLS Default: both non-TLS and TLS connections allowed To force TLS off or on in URIs call L<nbd_set_uri_allow_tls(3)>. =item Connect to Unix domain socket in the local filesystem Default: allowed To prevent this you must disable the C<+unix> transport using L<nbd_set_uri_allow_transports(3)>. =item Read from local files Default: denied To allow URIs to contain references to local files (eg. for parameters like C<tls-psk-file>) call L<nbd_set_uri_allow_local_file(3)>. =back =head2 Optional features This call will fail if libnbd was not compiled with libxml2; you can test whether this is the case with L<nbd_supports_uri(3)>. Support for URIs that require TLS will fail if libnbd was not compiled with gnutls; you can test whether this is the case with L<nbd_supports_tls(3)>."; see_also = ["L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/uri.md>"]; }; "connect_unix", { default_call with args = [ Path "unixsocket" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to NBD server over a Unix domain socket"; longdesc = "\ Connect (synchronously) over the named Unix domain socket (C<unixsocket>) to an NBD server running on the same machine. This call returns when the connection has been made."; example = Some "examples/fetch-first-sector.c"; }; "connect_vsock", { default_call with args = [ UInt32 "cid"; UInt32 "port" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to NBD server over AF_VSOCK protocol"; longdesc = "\ Connect (synchronously) over the C<AF_VSOCK> protocol from a virtual machine to an NBD server, usually running on the host. The C<cid> and C<port> parameters specify the server address. Usually C<cid> should be C<2> (to connect to the host), and C<port> might be C<10809> or another port number assigned to you by the host administrator. This call returns when the connection has been made."; }; "connect_tcp", { default_call with args = [ String "hostname"; String "port" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to NBD server over a TCP port"; longdesc = "\ Connect (synchronously) to the NBD server listening on C<hostname:port>. The C<port> may be a port name such as C<\"nbd\">, or it may be a port number as a string such as C<\"10809\">. This call returns when the connection has been made."; }; "connect_socket", { default_call with args = [ Fd "sock" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect directly to a connected socket"; longdesc = "\ Pass a connected socket (file descriptor) which libnbd will talk to. The program is responsible for connecting this somehow to an NBD server. Once the socket is passed to libnbd it is the responsibility of libnbd. Libnbd may read and write to it, set it to non-blocking, etc., and will finally close it when the handle is closed. The program must no longer use the socket."; }; "connect_command", { default_call with args = [ StringList "argv" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to NBD server command"; longdesc = "\ Run the command as a subprocess and connect to it over stdin/stdout. This is for use with NBD servers which can behave like inetd clients, such as C<nbdkit --single>. =head2 Subprocess Libnbd will fork the C<argv> command and pass the NBD socket to it using file descriptors 0 and 1 (stdin/stdout): ┌─────────┬─────────┠┌────────────────┠│ program │ libnbd │ │ NBD server │ │ │ │ │ (argv) │ │ │ socket â•â•â•â•â•â•â•â•â–¶ stdin/stdout │ └─────────┴─────────┘ └────────────────┘ When the NBD handle is closed the server subprocess is killed."; see_also = ["L<nbd_kill_subprocess(3)>"]; example = Some "examples/connect-command.c"; }; "connect_systemd_socket_activation", { default_call with args = [ StringList "argv" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect using systemd socket activation"; longdesc = "\ Run the command as a subprocess and connect to it using systemd socket activation. This is especially useful for running L<qemu-nbd(1)> as a subprocess of libnbd, for example to use it to open qcow2 files. To run nbdkit as a subprocess it is usually better to use L<nbd_connect_command(3)>. =head2 Socket activation Libnbd will fork the C<argv> command and pass an NBD socket to it using special C<LISTEN_*> environment variables (as defined by the systemd socket activation protocol). ┌─────────┬─────────┠┌───────────────┠│ program │ libnbd │ │ qemu-nbd or │ │ │ │ │ other server │ │ │ socket â•â•â•â•â•â•â•â•â–¶ │ └─────────┴─────────┘ └───────────────┘ When the NBD handle is closed the server subprocess is killed."; see_also = ["L<nbd_connect_command(3)>"; "L<nbd_kill_subprocess(3)>"; "L<qemu-nbd(1)>"; "L<http://0pointer.de/blog/projects/socket-activation.html>"]; example = Some "examples/open-qcow2.c"; }; "is_read_only", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "is the NBD export read-only?"; longdesc = "\ Returns true if the NBD export is read-only; writes and write-like operations will fail." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"]; example = Some "examples/server-flags.c"; }; "can_flush", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "does the server support the flush command?"; longdesc = "\ Returns true if the server supports the flush command (see L<nbd_flush(3)>, L<nbd_aio_flush(3)>). Returns false if the server does not." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"; "L<nbd_flush(3)>"; "L<nbd_aio_flush(3)>"]; example = Some "examples/server-flags.c"; }; "can_fua", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "does the server support the FUA flag?"; longdesc = "\ Returns true if the server supports the FUA flag on certain commands (see L<nbd_pwrite(3)>)." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"; "L<nbd_pwrite(3)>"; "L<nbd_zero(3)>"; "L<nbd_trim(3)>"]; example = Some "examples/server-flags.c"; }; "is_rotational", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "is the NBD disk rotational (like a disk)?"; longdesc = "\ Returns true if the disk exposed over NBD is rotational (like a traditional floppy or hard disk). Returns false if the disk has no penalty for random access (like an SSD or RAM disk)." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"]; example = Some "examples/server-flags.c"; }; "can_trim", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "does the server support the trim command?"; longdesc = "\ Returns true if the server supports the trim command (see L<nbd_trim(3)>, L<nbd_aio_trim(3)>). Returns false if the server does not." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"; "L<nbd_trim(3)>"; "L<nbd_aio_trim(3)>"]; example = Some "examples/server-flags.c"; }; "can_zero", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "does the server support the zero command?"; longdesc = "\ Returns true if the server supports the zero command (see L<nbd_zero(3)>, L<nbd_aio_zero(3)>). Returns false if the server does not." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"; "L<nbd_zero(3)>"; "L<nbd_aio_zero(3)>"; "L<nbd_can_fast_zero(3)>"]; example = Some "examples/server-flags.c"; }; "can_fast_zero", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "does the server support the fast zero flag?"; longdesc = "\ Returns true if the server supports the use of the C<LIBNBD_CMD_FLAG_FAST_ZERO> flag to the zero command (see C<nbd_zero>, C<nbd_aio_zero>). Returns false if the server does not." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"; "L<nbd_zero(3)>"; "L<nbd_aio_zero(3)>"; "L<nbd_can_zero(3)>"]; example = Some "examples/server-flags.c"; }; "can_df", { default_call with args = []; ret = RBool; shortdesc = "does the server support the don't fragment flag to pread?"; longdesc = "\ Returns true if the server supports structured reads with an ability to request a non-fragmented read (see L<nbd_pread_structured(3)>, L<nbd_aio_pread_structured(3)>). Returns false if the server either lacks structured reads or if it does not support a non-fragmented read request." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"; "L<nbd_pread_structured(3)>"; "L<nbd_aio_pread_structured(3)>"]; example = Some "examples/server-flags.c"; }; "can_multi_conn", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "does the server support multi-conn?"; longdesc = "\ Returns true if the server supports multi-conn. Returns false if the server does not. It is not safe to open multiple handles connecting to the same server if you will write to the server and the server does not advertise multi-conn support. The safe way to check for this is to open one connection, check this flag is true, then open further connections as required." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Multi-conn>"]; example = Some "examples/server-flags.c"; }; "can_cache", { default_call with args = []; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "does the server support the cache command?"; longdesc = "\ Returns true if the server supports the cache command (see L<nbd_cache(3)>, L<nbd_aio_cache(3)>). Returns false if the server does not." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"; "L<nbd_cache(3)>"; "L<nbd_aio_cache(3)>"]; example = Some "examples/server-flags.c"; }; "can_meta_context", { default_call with args = [String "metacontext"]; ret = RBool; permitted_states = [ Connected; Closed ]; shortdesc = "does the server support a specific meta context?"; longdesc = "\ Returns true if the server supports the given meta context (see L<nbd_add_meta_context(3)>). Returns false if the server does not. The single parameter is the name of the metadata context, for example C<LIBNBD_CONTEXT_BASE_ALLOCATION>. B<E<lt>libnbd.hE<gt>> includes defined constants for well-known namespace contexts beginning with C<LIBNBD_CONTEXT_>, but you are free to pass in other contexts." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Flag calls>"; "L<nbd_add_meta_context(3)>"; "L<nbd_block_status(3)>"; "L<nbd_aio_block_status(3)>"]; }; "get_protocol", { default_call with args = []; ret = RStaticString; permitted_states = [ Connected; Closed ]; shortdesc = "return the NBD protocol variant"; longdesc = "\ Return the NBD protocol variant in use on the connection. At the moment this returns one of the strings C<\"oldstyle\">, C<\"newstyle\"> or C<\"newstyle-fixed\">. Other strings might be returned in the future. Most modern NBD servers use C<\"newstyle-fixed\">. " ^ non_blocking_test_call_description; see_also = ["L<nbd_get_handshake_flags(3)>"; "L<nbd_get_structured_replies_negotiated(3)>"; "L<nbd_get_tls_negotiated(3)>"]; }; "get_size", { default_call with args = []; ret = RInt64; permitted_states = [ Connected; Closed ]; shortdesc = "return the export size"; longdesc = "\ Returns the size in bytes of the NBD export." ^ non_blocking_test_call_description; see_also = ["L<libnbd(3)/Size of the export>"]; example = Some "examples/get-size.c"; }; "pread", { default_call with args = [ BytesOut ("buf", "count"); UInt64 "offset" ]; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "read from the NBD server"; longdesc = "\ Issue a read command to the NBD server for the range starting at C<offset> and ending at C<offset> + C<count> - 1. NBD can only read all or nothing using this call. The call returns when the data has been read fully into C<buf> or there is an error. See also L<nbd_pread_structured(3)>, if finer visibility is required into the server's replies, or if you want to use C<LIBNBD_CMD_FLAG_DF>. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions)."; see_also = ["L<nbd_aio_pread(3)>"; "L<nbd_pread_structured(3)>"]; example = Some "examples/fetch-first-sector.c"; }; "pread_structured", { default_call with args = [ BytesOut ("buf", "count"); UInt64 "offset"; Closure chunk_closure ]; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "read from the NBD server"; longdesc = "\ Issue a read command to the NBD server for the range starting at C<offset> and ending at C<offset> + C<count> - 1. The server's response may be subdivided into chunks which may arrive out of order before reassembly into the original buffer; the C<chunk> callback is used for notification after each chunk arrives, and may perform additional sanity checking on the server's reply. The callback cannot call C<nbd_*> APIs on the same handle since it holds the handle lock and will cause a deadlock. If the callback returns C<-1>, and no earlier error has been detected, then the overall read command will fail with any non-zero value stored into the callback's C<error> parameter (with a default of C<EPROTO>); but any further chunks will still invoke the callback. The C<chunk> function is called once per chunk of data received, with the C<user_data> passed to this function. The C<subbuf> and C<count> parameters represent the subset of the original buffer which has just been populated by results from the server (in C, C<subbuf> always points within the original C<buf>; but this guarantee may not extend to other language bindings). The C<offset> parameter represents the absolute offset at which C<subbuf> begins within the image (note that this is not the relative offset of C<subbuf> within the original buffer C<buf>). Changes to C<error> on output are ignored unless the callback fails. The input meaning of the C<error> parameter is controlled by the C<status> parameter, which is one of =over 4 =item C<LIBNBD_READ_DATA> = 1 C<subbuf> was populated with C<count> bytes of data. On input, C<error> contains the errno value of any earlier detected error, or zero. =item C<LIBNBD_READ_HOLE> = 2 C<subbuf> represents a hole, and contains C<count> NUL bytes. On input, C<error> contains the errno value of any earlier detected error, or zero. =item C<LIBNBD_READ_ERROR> = 3 C<count> is 0, so C<subbuf> is unusable. On input, C<error> contains the errno value reported by the server as occurring while reading that C<offset>, regardless if any earlier error has been detected. =back Future NBD extensions may permit other values for C<status>, but those will not be returned to a client that has not opted in to requesting such extensions. If the server is non-compliant, it is possible for the C<chunk> function to be called more times than you expect or with C<count> 0 for C<LIBNBD_READ_DATA> or C<LIBNBD_READ_HOLE>. It is also possible that the C<chunk> function is not called at all (in particular, C<LIBNBD_READ_ERROR> is used only when an error is associated with a particular offset, and not when the server reports a generic error), but you are guaranteed that the callback was called at least once if the overall read succeeds. Libnbd does not validate that the server obeyed the requirement that a read call must not have overlapping chunks and must not succeed without enough chunks to cover the entire request. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_DF> meaning that the server should not reply with more than one fragment (if that is supported - some servers cannot do this, see L<nbd_can_df(3)>). Libnbd does not validate that the server actually obeys the flag."; see_also = ["L<nbd_can_df(3)>"; "L<nbd_pread(3)>"; "L<nbd_aio_pread_structured(3)>"]; }; "pwrite", { default_call with args = [ BytesIn ("buf", "count"); UInt64 "offset" ]; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "write to the NBD server"; longdesc = "\ Issue a write command to the NBD server, writing the data in C<buf> to the range starting at C<offset> and ending at C<offset> + C<count> - 1. NBD can only write all or nothing using this call. The call returns when the command has been acknowledged by the server, or there is an error. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_FUA> meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see L<nbd_can_fua(3)>)."; see_also = ["L<nbd_can_fua(3)>"; "L<nbd_is_read_only(3)>"; "L<nbd_aio_pwrite(3)>"]; example = Some "examples/reads-and-writes.c"; }; "shutdown", { default_call with args = []; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "disconnect from the NBD server"; longdesc = "\ Issue the disconnect command to the NBD server. This is a nice way to tell the server we are going away, but from the client's point of view has no advantage over abruptly closing the connection (see L<nbd_close(3)>). This function works whether or not the handle is ready for transmission of commands, and as such does not take a C<flags> parameter. If more fine-grained control is needed, see L<nbd_aio_disconnect(3)>. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions)."; see_also = ["L<nbd_close(3)>"; "L<nbd_aio_disconnect(3)>"]; example = Some "examples/reads-and-writes.c"; }; "flush", { default_call with args = []; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "send flush command to the NBD server"; longdesc = "\ Issue the flush command to the NBD server. The function should return when all write commands which have completed have been committed to permanent storage on the server. Note this will return an error if L<nbd_can_flush(3)> is false. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions)."; see_also = ["L<nbd_can_flush(3)>"; "L<nbd_aio_flush(3)>"]; }; "trim", { default_call with args = [ UInt64 "count"; UInt64 "offset" ]; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "send trim command to the NBD server"; longdesc = "\ Issue a trim command to the NBD server, which if supported by the server causes a hole to be punched in the backing store starting at C<offset> and ending at C<offset> + C<count> - 1. The call returns when the command has been acknowledged by the server, or there is an error. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_FUA> meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see L<nbd_can_fua(3)>)."; see_also = ["L<nbd_can_fua(3)>"; "L<nbd_can_trim(3)>"; "L<nbd_aio_trim(3)>"]; }; "cache", { default_call with args = [ UInt64 "count"; UInt64 "offset" ]; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "send cache (prefetch) command to the NBD server"; longdesc = "\ Issue the cache (prefetch) command to the NBD server, which if supported by the server causes data to be prefetched into faster storage by the server, speeding up a subsequent L<nbd_pread(3)> call. The server can also silently ignore this command. Note this will return an error if L<nbd_can_cache(3)> is false. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions)."; see_also = ["L<nbd_can_cache(3)>"; "L<nbd_aio_cache(3)>"]; }; "zero", { default_call with args = [ UInt64 "count"; UInt64 "offset" ]; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "send write zeroes command to the NBD server"; longdesc = "\ Issue a write zeroes command to the NBD server, which if supported by the server causes a zeroes to be written efficiently starting at C<offset> and ending at C<offset> + C<count> - 1. The call returns when the command has been acknowledged by the server, or there is an error. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_FUA> meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see L<nbd_can_fua(3)>), C<LIBNBD_CMD_FLAG_NO_HOLE> meaning that the server should favor writing actual allocated zeroes over punching a hole, and/or C<LIBNBD_CMD_FLAG_FAST_ZERO> meaning that the server must fail quickly if writing zeroes is no faster than a normal write (if that is supported - some servers cannot do this, see L<nbd_can_fast_zero(3)>)."; see_also = ["L<nbd_can_fua(3)>"; "L<nbd_can_zero(3)>"; "L<nbd_can_fast_zero(3)>"; "L<nbd_aio_zero(3)>"]; }; "block_status", { default_call with args = [ UInt64 "count"; UInt64 "offset"; Closure extent_closure ]; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "send block status command to the NBD server"; longdesc = "\ Issue the block status command to the NBD server. If supported by the server, this causes metadata context information about blocks beginning from the specified offset to be returned. The C<count> parameter is a hint: the server may choose to return less status, or the final block may extend beyond the requested range. If multiple contexts are supported, the number of blocks and cumulative length of those blocks need not be identical between contexts. Depending on which metadata contexts were enabled before connecting (see L<nbd_add_meta_context(3)>) and which are supported by the server (see L<nbd_can_meta_context(3)>) this call returns information about extents by calling back to the C<extent> function. The callback cannot call C<nbd_*> APIs on the same handle since it holds the handle lock and will cause a deadlock. If the callback returns C<-1>, and no earlier error has been detected, then the overall block status command will fail with any non-zero value stored into the callback's C<error> parameter (with a default of C<EPROTO>); but any further contexts will still invoke the callback. The C<extent> function is called once per type of metadata available, with the C<user_data> passed to this function. The C<metacontext> parameter is a string such as C<\"base:allocation\">. The C<entries> array is an array of pairs of integers with the first entry in each pair being the length (in bytes) of the block and the second entry being a status/flags field which is specific to the metadata context. (The number of pairs passed to the function is C<nr_entries/2>.) The NBD protocol document in the section about C<NBD_REPLY_TYPE_BLOCK_STATUS> describes the meaning of this array; for contexts known to libnbd, B<E<lt>libnbd.hE<gt>> contains constants beginning with C<LIBNBD_STATE_> that may help decipher the values. On entry to the callback, the C<error> parameter contains the errno value of any previously detected error. It is possible for the extent function to be called more times than you expect (if the server is buggy), so always check the C<metacontext> field to ensure you are receiving the data you expect. It is also possible that the extent function is not called at all, even for metadata contexts that you requested. This indicates either that the server doesn't support the context or for some other reason cannot return the data. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_REQ_ONE> meaning that the server should return only one extent per metadata context where that extent does not exceed C<count> bytes; however, libnbd does not validate that the server obeyed the flag."; see_also = ["L<nbd_add_meta_context(3)>"; "L<nbd_can_meta_context(3)>"; "L<nbd_aio_block_status(3)>"]; }; "poll", { default_call with args = [ Int "timeout" ]; ret = RInt; shortdesc = "poll the handle once"; longdesc = "\ This is a simple implementation of L<poll(2)> which is used internally by synchronous API calls. On success, it returns C<0> if the C<timeout> (in milliseconds) occurs, or C<1> if the poll completed and the state machine progressed. Set C<timeout> to C<-1> to block indefinitely (but be careful that eventual action is actually expected - for example, if the connection is established but there are no commands in flight, using an infinite timeout will permanently block). This function is mainly useful as an example of how you might integrate libnbd with your own main loop, rather than being intended as something you would use."; example = Some "examples/aio-connect-read.c"; }; "aio_connect", { default_call with args = [ SockAddrAndLen ("addr", "addrlen") ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to the NBD server"; longdesc = "\ Begin connecting to the NBD server. The C<addr> and C<addrlen> parameters specify the address of the socket to connect to. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection."; }; "aio_connect_uri", { default_call with args = [ String "uri" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to an NBD URI"; longdesc = "\ Begin connecting to the NBD URI C<uri>. Parameters behave as documented in L<nbd_connect_uri(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection."; see_also = ["L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/uri.md>"] }; "aio_connect_unix", { default_call with args = [ Path "unixsocket" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to the NBD server over a Unix domain socket"; longdesc = "\ Begin connecting to the NBD server over Unix domain socket (C<unixsocket>). Parameters behave as documented in L<nbd_connect_unix(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection."; example = Some "examples/aio-connect-read.c"; }; "aio_connect_vsock", { default_call with args = [ UInt32 "cid"; UInt32 "port" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to the NBD server over AF_VSOCK socket"; longdesc = "\ Begin connecting to the NBD server over the C<AF_VSOCK> protocol to the server C<cid:port>. Parameters behave as documented in L<nbd_connect_vsock(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection."; }; "aio_connect_tcp", { default_call with args = [ String "hostname"; String "port" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to the NBD server over a TCP port"; longdesc = "\ Begin connecting to the NBD server listening on C<hostname:port>. Parameters behave as documented in L<nbd_connect_tcp(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection."; }; "aio_connect_socket", { default_call with args = [ Fd "sock" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect directly to a connected socket"; longdesc = "\ Begin connecting to the connected socket C<fd>. Parameters behave as documented in L<nbd_connect_socket(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection."; }; "aio_connect_command", { default_call with args = [ StringList "argv" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect to the NBD server"; longdesc = "\ Run the command as a subprocess and begin connecting to it over stdin/stdout. Parameters behave as documented in L<nbd_connect_command(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection."; }; "aio_connect_systemd_socket_activation", { default_call with args = [ StringList "argv" ]; ret = RErr; permitted_states = [ Created ]; shortdesc = "connect using systemd socket activation"; longdesc = "\ Run the command as a subprocess and begin connecting to it using systemd socket activation. Parameters behave as documented in L<nbd_connect_systemd_socket_activation(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection."; }; "aio_pread", { default_call with args = [ BytesPersistOut ("buf", "count"); UInt64 "offset" ]; optargs = [ OClosure completion_closure; OFlags ("flags", cmd_flags) ]; ret = RCookie; permitted_states = [ Connected ]; shortdesc = "read from the NBD server"; longdesc = "\ Issue a read command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Note that you must ensure C<buf> is valid until the command has completed. Other parameters behave as documented in L<nbd_pread(3)>."; example = Some "examples/aio-connect-read.c"; see_also = ["L<libnbd(3)/Issuing asynchronous commands>"; "L<nbd_aio_pread_structured(3)>"; "L<nbd_pread(3)>"]; }; "aio_pread_structured", { default_call with args = [ BytesPersistOut ("buf", "count"); UInt64 "offset"; Closure chunk_closure ]; optargs = [ OClosure completion_closure; OFlags ("flags", cmd_flags) ]; ret = RCookie; permitted_states = [ Connected ]; shortdesc = "read from the NBD server"; longdesc = "\ Issue a read command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_pread_structured(3)>."; see_also = ["L<libnbd(3)/Issuing asynchronous commands>"; "L<nbd_aio_pread(3)>"; "L<nbd_pread_structured(3)>"]; }; "aio_pwrite", { default_call with args = [ BytesPersistIn ("buf", "count"); UInt64 "offset" ]; optargs = [ OClosure completion_closure; OFlags ("flags", cmd_flags) ]; ret = RCookie; permitted_states = [ Connected ]; shortdesc = "write to the NBD server"; longdesc = "\ Issue a write command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Note that you must ensure C<buf> is valid until the command has completed. Other parameters behave as documented in L<nbd_pwrite(3)>."; see_also = ["L<libnbd(3)/Issuing asynchronous commands>"; "L<nbd_is_read_only(3)>"; "L<nbd_pwrite(3)>"]; }; "aio_disconnect", { default_call with args = []; optargs = [ OFlags ("flags", cmd_flags) ]; ret = RErr; permitted_states = [ Connected ]; shortdesc = "disconnect from the NBD server"; longdesc = "\ Issue the disconnect command to the NBD server. This is not a normal command because NBD servers are not obliged to send a reply. Instead you should wait for L<nbd_aio_is_closed(3)> to become true on the connection. Once this command is issued, you cannot issue any further commands. Although libnbd does not prevent you from issuing this command while still waiting on the replies to previous commands, the NBD protocol recommends that you wait until there are no other commands in flight (see L<nbd_aio_in_flight(3)>), to give the server a better chance at a clean shutdown. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions). There is no direct synchronous counterpart; however, L<nbd_shutdown(3)> will call this function if appropriate."; see_also = ["L<nbd_aio_in_flight(3)>"]; }; "aio_flush", { default_call with args = []; optargs = [ OClosure completion_closure; OFlags ("flags", cmd_flags) ]; ret = RCookie; permitted_states = [ Connected ]; shortdesc = "send flush command to the NBD server"; longdesc = "\ Issue the flush command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_flush(3)>."; see_also = ["L<libnbd(3)/Issuing asynchronous commands>"; "L<nbd_can_flush(3)>"; "L<nbd_flush(3)>"]; }; "aio_trim", { default_call with args = [ UInt64 "count"; UInt64 "offset" ]; optargs = [ OClosure completion_closure; OFlags ("flags", cmd_flags) ]; ret = RCookie; permitted_states = [ Connected ]; shortdesc = "send trim command to the NBD server"; longdesc = "\ Issue a trim command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_trim(3)>."; see_also = ["L<libnbd(3)/Issuing asynchronous commands>"; "L<nbd_can_trim(3)>"; "L<nbd_trim(3)>"]; }; "aio_cache", { default_call with args = [ UInt64 "count"; UInt64 "offset" ]; optargs = [ OClosure completion_closure; OFlags ("flags", cmd_flags) ]; ret = RCookie; permitted_states = [ Connected ]; shortdesc = "send cache (prefetch) command to the NBD server"; longdesc = "\ Issue the cache (prefetch) command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_cache(3)>."; see_also = ["L<libnbd(3)/Issuing asynchronous commands>"; "L<nbd_can_cache(3)>"; "L<nbd_cache(3)>"]; }; "aio_zero", { default_call with args = [ UInt64 "count"; UInt64 "offset" ]; optargs = [ OClosure completion_closure; OFlags ("flags", cmd_flags) ]; ret = RCookie; permitted_states = [ Connected ]; shortdesc = "send write zeroes command to the NBD server"; longdesc = "\ Issue a write zeroes command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_zero(3)>."; see_also = ["L<libnbd(3)/Issuing asynchronous commands>"; "L<nbd_can_zero(3)>"; "L<nbd_can_fast_zero(3)>"; "L<nbd_zero(3)>"]; }; "aio_block_status", { default_call with args = [ UInt64 "count"; UInt64 "offset"; Closure extent_closure ]; optargs = [ OClosure completion_closure; OFlags ("flags", cmd_flags) ]; ret = RCookie; permitted_states = [ Connected ]; shortdesc = "send block status command to the NBD server"; longdesc = "\ Send the block status command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_block_status(3)>."; see_also = ["L<libnbd(3)/Issuing asynchronous commands>"; "L<nbd_can_meta_context(3)>"; "L<nbd_block_status(3)>"]; }; "aio_get_fd", { default_call with args = []; ret = RFd; shortdesc = "return file descriptor associated with this connection"; longdesc = "\ Return the underlying file descriptor associated with this connection. You can use this to check if the file descriptor is ready for reading or writing and call L<nbd_aio_notify_read(3)> or L<nbd_aio_notify_write(3)>. See also L<nbd_aio_get_direction(3)>. Do not do anything else with the file descriptor."; see_also = ["L<nbd_aio_get_direction(3)>"]; }; "aio_get_direction", { default_call with args = []; ret = RUInt; is_locked = false; may_set_error = false; shortdesc = "return the read or write direction"; longdesc = "\ Return the current direction of this connection, which means whether we are next expecting to read data from the server, write data to the server, or both. It returns =over 4 =item 0 We are not expected to interact with the server file descriptor from the current state. It is not worth attempting to use L<poll(2)>; if the connection is not dead, then state machine progress must instead come from some other means such as L<nbd_aio_connect(3)>. =item C<LIBNBD_AIO_DIRECTION_READ> = 1 We are expected next to read from the server. If using L<poll(2)> you would set C<events = POLLIN>. If C<revents> returns C<POLLIN> or C<POLLHUP> you would then call L<nbd_aio_notify_read(3)>. Note that once libnbd reaches L<nbd_aio_is_ready(3)>, this direction is returned even when there are no commands in flight (see L<nbd_aio_in_flight(3)>). In a single-threaded use of libnbd, it is not worth polling until after issuing a command, as otherwise the server will never wake up the poll. In a multi-threaded scenario, you can have one thread begin a polling loop prior to any commands, but any other thread that issues a command will need a way to kick the polling thread out of poll in case issuing the command changes the needed polling direction. Possible ways to do this include polling for activity on a pipe-to-self, or using L<pthread_kill(3)> to send a signal that is masked except during L<ppoll(2)>. =item C<LIBNBD_AIO_DIRECTION_WRITE> = 2 We are expected next to write to the server. If using L<poll(2)> you would set C<events = POLLOUT>. If C<revents> returns C<POLLOUT> you would then call L<nbd_aio_notify_write(3)>. =item C<LIBNBD_AIO_DIRECTION_BOTH> = 3 We are expected next to either read or write to the server. If using L<poll(2)> you would set C<events = POLLIN|POLLOUT>. If only one of C<POLLIN> or C<POLLOUT> is returned, then see above. However, if both are returned, it is better to call only L<nbd_aio_notify_read(3)>, as processing the server's reply may change the state of the connection and invalidate the need to write more commands. =back"; see_also = ["L<nbd_aio_in_flight(3)>"]; }; "aio_notify_read", { default_call with args = []; ret = RErr; shortdesc = "notify that the connection is readable"; longdesc = "\ Send notification to the state machine that the connection is readable. Typically this is called after your main loop has detected that the file descriptor associated with this connection is readable."; }; "aio_notify_write", { default_call with args = []; ret = RErr; shortdesc = "notify that the connection is writable"; longdesc = "\ Send notification to the state machine that the connection is writable. Typically this is called after your main loop has detected that the file descriptor associated with this connection is writable."; }; "aio_is_created", { default_call with args = []; ret = RBool; is_locked = false; may_set_error = false; shortdesc = "check if the connection has just been created"; longdesc = "\ Return true if this connection has just been created. This is the state before the handle has started connecting to a server. In this state the handle can start to be connected by calling functions such as L<nbd_aio_connect(3)>."; }; "aio_is_connecting", { default_call with args = []; ret = RBool; is_locked = false; may_set_error = false; shortdesc = "check if the connection is connecting or handshaking"; longdesc = "\ Return true if this connection is connecting to the server or in the process of handshaking and negotiating options which happens before the handle becomes ready to issue commands (see L<nbd_aio_is_ready(3)>)."; see_also = ["L<nbd_aio_is_ready(3)>"]; }; "aio_is_ready", { default_call with args = []; ret = RBool; is_locked = false; may_set_error = false; shortdesc = "check if the connection is in the ready state"; longdesc = "\ Return true if this connection is connected to the NBD server, the handshake has completed, and the connection is idle or waiting for a reply. In this state the handle is ready to issue commands."; }; "aio_is_processing", { default_call with args = []; ret = RBool; is_locked = false; may_set_error = false; shortdesc = "check if the connection is processing a command"; longdesc = "\ Return true if this connection is connected to the NBD server, the handshake has completed, and the connection is processing commands (either writing out a request or reading a reply). Note the ready state (L<nbd_aio_is_ready(3)>) is not included. In the ready state commands may be I<in flight> (the I<server> is processing them), but libnbd is not processing them."; }; "aio_is_dead", { default_call with args = []; ret = RBool; is_locked = false; may_set_error = false; shortdesc = "check if the connection is dead"; longdesc = "\ Return true if the connection has encountered a fatal error and is dead. In this state the handle may only be closed. There is no way to recover a handle from the dead state."; }; "aio_is_closed", { default_call with args = []; ret = RBool; is_locked = false; may_set_error = false; shortdesc = "check if the connection is closed"; longdesc = "\ Return true if the connection has closed. There is no way to reconnect a closed connection. Instead you must close the whole handle."; }; "aio_command_completed", { default_call with args = [Int64 "cookie"]; ret = RBool; shortdesc = "check if the command completed"; longdesc = "\ Return true if the command completed. If this function returns true then the command was successful and it has been retired. Return false if the command is still in flight. This can also fail with an error in case the command failed (in this case the command is also retired). A command is retired either via this command, or by using a completion callback which returns C<1>. The C<cookie> parameter is the positive unique 64 bit cookie for the command, as returned by a call such as L<nbd_aio_pread(3)>."; }; "aio_peek_command_completed", { default_call with args = []; ret = RInt64; shortdesc = "check if any command has completed"; longdesc = "\ Return the unique positive 64 bit cookie of the first non-retired but completed command, C<0> if there are in-flight commands but none of them are awaiting retirement, or C<-1> on error including when there are no in-flight commands. Any cookie returned by this function must still be passed to L<nbd_aio_command_completed(3)> to actually retire the command and learn whether the command was successful."; }; "aio_in_flight", { default_call with args = []; ret = RInt; permitted_states = [ Connected; Closed; Dead ]; (* XXX is_locked = false ? *) shortdesc = "check how many aio commands are still in flight"; longdesc = "\ Return the number of in-flight aio commands that are still awaiting a response from the server before they can be retired. If this returns a non-zero value when requesting a disconnect from the server (see L<nbd_aio_disconnect(3)> and L<nbd_shutdown(3)>), libnbd does not try to wait for those commands to complete gracefully; if the server strands commands while shutting down, L<nbd_aio_command_completed(3)> will report those commands as failed with a status of C<ENOTCONN>."; example = Some "examples/aio-connect-read.c"; see_also = ["L<nbd_aio_disconnect(3)>"]; }; "connection_state", { default_call with args = []; ret = RStaticString; shortdesc = "return string describing the state of the connection"; longdesc = "\ Returns a descriptive string for the state of the connection. This can be used for debugging or troubleshooting, but you should not rely on the state of connections since it may change in future versions."; }; "get_package_name", { default_call with args = []; ret = RStaticString; is_locked = false; may_set_error = false; shortdesc = "return the name of the library"; longdesc = "\ Returns the name of the library, always C<\"libnbd\"> unless the library was modified with another name at compile time."; }; "get_version", { default_call with args = []; ret = RStaticString; is_locked = false; may_set_error = false; shortdesc = "return the version of the library"; longdesc = "\ Return the version of libnbd. This is returned as a string in the form C<\"major.minor.release\"> where each of major, minor and release is a small positive integer. For example: minor ↓ \"1.0.3\" ↑ ↑ major release =over 4 =item major = 0 The major number was C<0> for the early experimental versions of libnbd where we still had an unstable API. =item major = 1 The major number is C<1> for the versions of libnbd with a long-term stable API and ABI. It is not anticipated that major will be any number other than C<1>. =item minor = 0, 2, ... (even) The minor number is even for stable releases. =item minor = 1, 3, ... (odd) The minor number is odd for development versions. Note that new APIs added in a development version remain experimental and subject to change in that branch until they appear in a stable release. =item release The release number is incremented for each release along a particular branch. =back"; }; "kill_subprocess", { default_call with args = [ Int "signum" ]; ret = RErr; shortdesc = "kill server running as a subprocess"; longdesc = "\ This call may be used to kill the server running as a subprocess that was previously created using L<nbd_connect_command(3)>. You do not need to use this call. It is only needed if the server does not exit when the socket is closed. The C<signum> parameter is the optional signal number to send (see L<signal(7)>). If C<signum> is C<0> then C<SIGTERM> is sent."; see_also = ["L<signal(7)>"; "L<nbd_connect_command(3)>"]; }; "supports_tls", { default_call with args = []; ret = RBool; is_locked = false; may_set_error = false; shortdesc = "true if libnbd was compiled with support for TLS"; longdesc = "\ Returns true if libnbd was compiled with gnutls which is required to support TLS encryption, or false if not."; see_also = ["L<nbd_set_tls(3)>"]; }; "supports_uri", { default_call with args = []; ret = RBool; is_locked = false; may_set_error = false; shortdesc = "true if libnbd was compiled with support for NBD URIs"; longdesc = "\ Returns true if libnbd was compiled with libxml2 which is required to support NBD URIs, or false if not."; see_also = ["L<nbd_connect_uri(3)>"; "L<nbd_aio_connect_uri(3)>"]; }; ] (* The first stable version that the symbol appeared in, for * example (1, 2) if the symbol was added in development cycle * 1.1.x and thus the first stable version was 1.2. *) let first_version = [ "set_debug", (1, 0); "get_debug", (1, 0); "set_debug_callback", (1, 0); "clear_debug_callback", (1, 0); "set_handle_name", (1, 0); "get_handle_name", (1, 0); "set_export_name", (1, 0); "get_export_name", (1, 0); "set_tls", (1, 0); "get_tls", (1, 0); "set_tls_certificates", (1, 0); "set_tls_verify_peer", (1, 0); "get_tls_verify_peer", (1, 0); "set_tls_username", (1, 0); "get_tls_username", (1, 0); "set_tls_psk_file", (1, 0); "add_meta_context", (1, 0); "connect_uri", (1, 0); "connect_unix", (1, 0); "connect_tcp", (1, 0); "connect_command", (1, 0); "is_read_only", (1, 0); "can_flush", (1, 0); "can_fua", (1, 0); "is_rotational", (1, 0); "can_trim", (1, 0); "can_zero", (1, 0); "can_df", (1, 0); "can_multi_conn", (1, 0); "can_cache", (1, 0); "can_meta_context", (1, 0); "get_size", (1, 0); "pread", (1, 0); "pread_structured", (1, 0); "pwrite", (1, 0); "shutdown", (1, 0); "flush", (1, 0); "trim", (1, 0); "cache", (1, 0); "zero", (1, 0); "block_status", (1, 0); "poll", (1, 0); "aio_connect", (1, 0); "aio_connect_uri", (1, 0); "aio_connect_unix", (1, 0); "aio_connect_tcp", (1, 0); "aio_connect_command", (1, 0); "aio_pread", (1, 0); "aio_pread_structured", (1, 0); "aio_pwrite", (1, 0); "aio_disconnect", (1, 0); "aio_flush", (1, 0); "aio_trim", (1, 0); "aio_cache", (1, 0); "aio_zero", (1, 0); "aio_block_status", (1, 0); "aio_get_fd", (1, 0); "aio_get_direction", (1, 0); "aio_notify_read", (1, 0); "aio_notify_write", (1, 0); "aio_is_created", (1, 0); "aio_is_connecting", (1, 0); "aio_is_ready", (1, 0); "aio_is_processing", (1, 0); "aio_is_dead", (1, 0); "aio_is_closed", (1, 0); "aio_command_completed", (1, 0); "aio_peek_command_completed", (1, 0); "aio_in_flight", (1, 0); "connection_state", (1, 0); "get_package_name", (1, 0); "get_version", (1, 0); "kill_subprocess", (1, 0); "supports_tls", (1, 0); "supports_uri", (1, 0); (* Added in 1.1.x development cycle, will be stable and supported in 1.2. *) "can_fast_zero", (1, 2); "set_request_structured_replies", (1, 2); "get_request_structured_replies", (1, 2); "get_structured_replies_negotiated", (1, 2); "get_tls_negotiated", (1, 2); "get_protocol", (1, 2); "set_handshake_flags", (1, 2); "get_handshake_flags", (1, 2); "connect_systemd_socket_activation", (1, 2); "aio_connect_systemd_socket_activation", (1, 2); "connect_socket", (1, 2); "aio_connect_socket", (1, 2); "connect_vsock", (1, 2); "aio_connect_vsock", (1, 2); "set_uri_allow_transports", (1, 2); "set_uri_allow_tls", (1, 2); "set_uri_allow_local_file", (1, 2); (* These calls are proposed for a future version of libnbd, but * have not been added to any released version so far. "get_tls_certificates", (1, ??); "get_tls_psk_file", (1, ??); *) ] (* Constants, etc. *) let constants = [ "AIO_DIRECTION_READ", 1; "AIO_DIRECTION_WRITE", 2; "AIO_DIRECTION_BOTH", 3; "READ_DATA", 1; "READ_HOLE", 2; "READ_ERROR", 3; ] let metadata_namespaces = [ "base", [ "allocation", [ "STATE_HOLE", 1 lsl 0; "STATE_ZERO", 1 lsl 1; ] ]; ] (*----------------------------------------------------------------------*) (* Helper functions. *) let failwithf fs = ksprintf failwith fs let rec filter_map f = function | [] -> [] | x :: xs -> match f x with | Some y -> y :: filter_map f xs | None -> filter_map f xs (* group_by [1, "foo"; 2, "bar"; 2, "baz"; 2, "biz"; 3, "boo"; 4, "fizz"] * - : (int * string list) list = * [(1, ["foo"]); (2, ["bar"; "baz"; "biz"]); (3, ["boo"]); (4, ["fizz"])] *) let rec group_by = function | [] -> [] | (day1, x1) :: (day2, x2) :: rest when day1 = day2 -> let rest = group_by ((day2, x2) :: rest) in let day, xs = List.hd rest in (day, x1 :: xs) :: List.tl rest | (day, x) :: rest -> (day, [x]) :: group_by rest let uniq ?(cmp = compare) xs = let rec loop acc = function | [] -> acc | [x] -> x :: acc | x :: (y :: _ as xs) when cmp x y = 0 -> loop acc xs | x :: (y :: _ as xs) -> loop (x :: acc) xs in List.rev (loop [] xs) (* This is present in OCaml 4.04, so we can remove it when * we depend on OCaml >= 4.04. *) let sort_uniq ?(cmp = compare) xs = let xs = List.sort cmp xs in let xs = uniq ~cmp xs in xs let is_prefix str prefix = let n = String.length prefix in String.length str >= n && String.sub str 0 n = prefix let rec find s sub = let len = String.length s in let sublen = String.length sub in let rec loop i = if i <= len-sublen then ( let rec loop2 j = if j < sublen then ( if s.[i+j] = sub.[j] then loop2 (j+1) else -1 ) else i (* found *) in let r = loop2 0 in if r = -1 then loop (i+1) else r ) else -1 (* not found *) in loop 0 let rec split sep str = let len = String.length sep in let seplen = String.length str in let i = find str sep in if i = -1 then str, "" else ( String.sub str 0 i, String.sub str (i + len) (seplen - i - len) ) and nsplit sep str = if find str sep = -1 then [str] else ( let s1, s2 = split sep str in s1 :: nsplit sep s2 ) let char_mem c str = String.contains str c let span str accept = let len = String.length str in let rec loop i = if i >= len then len else if char_mem (String.unsafe_get str i) accept then loop (i+1) else i in loop 0 let cspan str reject = let len = String.length str in let rec loop i = if i >= len then len else if char_mem (String.unsafe_get str i) reject then i else loop (i+1) in loop 0 (* Last output column. *) let col = ref 0 type chan = NoOutput | OutChannel of out_channel | Buffer of Buffer.t let chan = ref NoOutput let pr fs = ksprintf ( fun str -> (* Maintain the current output column. We can simply do this * by counting backwards from the end of the string until we * reach a \n (or the beginning). The number we count is * the new column. This only works for 7 bit ASCII but * that's enough for what we need this for. *) let rec loop i acc = if i >= 0 then ( if String.unsafe_get str i = '\n' then acc else loop (i-1) (acc+1) ) else !col + acc in col := loop (String.length str - 1) 0; match !chan with | NoOutput -> failwithf "use ‘output_to’ to set output" | OutChannel chan -> output_string chan str | Buffer b -> Buffer.add_string b str ) fs let pr_wrap ?(maxcol = 76) c code = (* Save the current output channel and replace it with a * temporary buffer while running ‘code’. Then we wrap the * buffer and write it to the restored channel. *) let old_chan = !chan in let wrapping_col = !col in let b = Buffer.create 1024 in chan := Buffer b; let exn = try code (); None with exn -> Some exn in chan := old_chan; col := wrapping_col; (match exn with None -> () | Some exn -> raise exn); let lines = nsplit "\n" (Buffer.contents b) in match lines with | [] -> () | line :: rest -> let fields = nsplit (String.make 1 c) line in let maybe_wrap field = if !col > wrapping_col && !col + String.length field >= maxcol then ( pr "\n"; for i = 0 to wrapping_col-1 do pr " " done; match span field " \t" with | 0 -> field | i -> String.sub field i (String.length field - i) ) else field in let rec loop = function | [] -> () | f :: [] -> let f = maybe_wrap f in pr "%s" f; | f :: fs -> let f = maybe_wrap f in pr "%s%c" f c; loop fs in loop fields; (* There should really only be one line in the buffer, but * if there are multiple apply wrapping to only the first one. *) pr "%s" (String.concat "\n" rest) type comment_style = | CStyle | CPlusPlusStyle | HashStyle | OCamlStyle | HaskellStyle | PODCommentStyle let generate_header ?(extra_sources = []) comment_style = let inputs = "generator/generator" :: extra_sources in let c = match comment_style with | CStyle -> pr "/* "; " *" | CPlusPlusStyle -> pr "// "; "//" | HashStyle -> pr "# "; "#" | OCamlStyle -> pr "(* "; " *" | HaskellStyle -> pr "{- "; " " | PODCommentStyle -> pr "=begin comment\n\n "; "" in pr "NBD client library in userspace\n"; pr "%s WARNING: THIS FILE IS GENERATED FROM\n" c; pr "%s %s\n" c (String.concat " " inputs); pr "%s ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST.\n" c; pr "%s\n" c; pr "%s Copyright (C) 2013-2019 Red Hat Inc.\n" c; pr "%s\n" c; pr "%s This library is free software; you can redistribute it and/or\n" c; pr "%s modify it under the terms of the GNU Lesser General Public\n" c; pr "%s License as published by the Free Software Foundation; either\n" c; pr "%s version 2 of the License, or (at your option) any later version.\n" c; pr "%s\n" c; pr "%s This library is distributed in the hope that it will be useful,\n" c; pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c; pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" c; pr "%s Lesser General Public License for more details.\n" c; pr "%s\n" c; pr "%s You should have received a copy of the GNU Lesser General Public\n" c; pr "%s License along with this library; if not, write to the Free Software\n" c; pr "%s Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n" c; (match comment_style with | CStyle -> pr " */\n" | CPlusPlusStyle | HashStyle -> () | OCamlStyle -> pr " *)\n" | HaskellStyle -> pr "-}\n" | PODCommentStyle -> pr "\n=end comment\n" ); pr "\n" let quote = Filename.quote let files_equal n1 n2 = let cmd = sprintf "cmp -s %s %s" (quote n1) (quote n2) in match Sys.command cmd with | 0 -> true | 1 -> false | i -> failwithf "%s: failed with error code %d" cmd i let output_to filename k = let filename_new = filename ^ ".new" in let c = open_out filename_new in chan := OutChannel c; k (); close_out c; chan := NoOutput; (* Is the new file different from the current file? *) if Sys.file_exists filename && files_equal filename filename_new then unlink filename_new (* same, so skip it *) else ( (* different, overwrite old one *) (try chmod filename 0o644 with Unix_error _ -> ()); rename filename_new filename; chmod filename 0o444; printf "written %s\n%!" filename; ) let string_of_location (file, lineno) = sprintf "%s:%d" file lineno let line_directive_of_location (file, lineno) = sprintf "#line %d \"%s\"" lineno file (*----------------------------------------------------------------------*) (* Convert POD fragments into plain text. * * For man pages and Perl documentation we can simply use the POD * directly, and that is the best solution. However for other * programming languages we have to convert the POD fragments to * plain text by running it through pod2text. * * The problem is that pod2text is very slow so we must cache * the converted fragments to disk. * * Increment the version in the filename whenever the cache * type changes. *) type cache_key = string (* longdesc *) type cache_value = string list (* list of plain text lines *) let (cache : (cache_key, cache_value) Hashtbl.t), save_cache = let cachefile = "generator/generator-cache.v1" in let cache = try let chan = open_in cachefile in let ret = input_value chan in close_in chan; ret with _ -> printf "Regenerating the cache, this could take a little while ...\n%!"; Hashtbl.create 13 in let save_cache () = let chan = open_out cachefile in output_value chan cache; close_out chan in cache, save_cache let pod2text longdesc = let key : cache_key = longdesc in try Hashtbl.find cache key with Not_found -> let filename, chan = Filename.open_temp_file "pod2text" ".tmp" in fprintf chan "=encoding utf8\n\n"; fprintf chan "=head1 NAME\n\n%s\n" longdesc; close_out chan; let cmd = sprintf "pod2text -w 60 %s" (quote filename) in let chan = open_process_in cmd in let lines = ref [] in let rec loop i = let line = input_line chan in if i = 1 then (* discard first line of output *) loop (i+1) else ( lines := line :: !lines; loop (i+1) ) in let lines : cache_value = try loop 1 with End_of_file -> List.rev !lines in unlink filename; (match close_process_in chan with | WEXITED 0 -> () | WEXITED i -> failwithf "pod2text: process exited with non-zero status (%d)" i | WSIGNALED i | WSTOPPED i -> failwithf "pod2text: process signalled or stopped by signal %d" i ); Hashtbl.add cache key lines; save_cache (); lines (*----------------------------------------------------------------------*) (* Implement state machine. *) module StateMachine : sig val generate_lib_states_h : unit -> unit val generate_lib_states_c : unit -> unit val generate_lib_states_run_c : unit -> unit end = struct let all_external_events = [NotifyRead; NotifyWrite; CmdCreate; CmdConnectSockAddr; CmdConnectTCP; CmdConnectCommand; CmdConnectSA; CmdConnectSocket; CmdIssue] let string_of_external_event = function | NotifyRead -> "NotifyRead" | NotifyWrite -> "NotifyWrite" | CmdCreate -> "CmdCreate" | CmdConnectSockAddr -> "CmdConnectSockAddr" | CmdConnectTCP -> "CmdConnectTCP" | CmdConnectCommand -> "CmdConnectCommand" | CmdConnectSA -> "CmdConnectSA" | CmdConnectSocket -> "CmdConnectSocket" | CmdIssue -> "CmdIssue" let c_string_of_external_event = function | NotifyRead -> "notify_read" | NotifyWrite -> "notify_write" | CmdCreate -> "cmd_create" | CmdConnectSockAddr -> "cmd_connect_sockaddr" | CmdConnectTCP -> "cmd_connect_tcp" | CmdConnectCommand -> "cmd_connect_command" | CmdConnectSA -> "cmd_connect_sa" | CmdConnectSocket -> "cmd_connect_socket" | CmdIssue -> "cmd_issue" (* Find a state in the state machine hierarchy by path. The [path] * parameter is a list like [["READY"]] or [["MAGIC"; "START"]]. *) let find_state path = let rec find sm = function | [] -> raise Not_found | [n] -> (* Find a state leaf node. *) let rec loop = function | [] -> raise Not_found | State ({ name } as ret) :: _ when n = name -> ret | _ :: rest -> loop rest in loop sm | g :: path -> (* Find a state machine group. *) let rec loop = function | [] -> raise Not_found | Group (name, group) :: _ when g = name -> find group path | _ :: rest -> loop rest in loop sm in try (find state_machine path : state) with Not_found -> failwithf "find_state: ‘%s’ not found" (String.concat "." path) let dot_rex = Str.regexp "\\." (* Resolve a stringified path to a state. * * [prefix] parameter is the current prefix. We resolve paths * relative to this. * * Stringified paths can be: * ["STATE"] => state relative to current level * ["GROUP.STATE"] => state below group at current level (to any depth) * [".TOP"] => state at the top level * ["^UP"] => state at a level above this one *) let rec resolve_state prefix str = let len = String.length str in if len >= 1 && String.sub str 0 1 = "." then resolve_state [] (String.sub str 1 (len-1)) else if len >= 1 && String.sub str 0 1 = "^" then ( let parent = match List.rev prefix with | [] -> failwithf "resolve_state: %s (^) used from top level group" str | _ :: rest -> List.rev rest in resolve_state parent (String.sub str 1 (len-1)) ) else ( let path = Str.split_delim dot_rex str in find_state (prefix @ path) ) (* Flatten the state machine hierarchy. This sets the [parsed.prefix], * [parsed.state_enum], [parsed.events] fields in the state. *) let states : state list = let rec flatten prefix = function | [] -> [] | State st :: rest -> st.parsed <- { st.parsed with prefix = prefix; display_name = ( match prefix with | [] -> st.name | prefix -> String.concat "." prefix ^ "." ^ st.name ); state_enum = ( let path = String.concat "" (List.map ((^) "_") prefix) in "STATE" ^ path ^ "_" ^ st.name ); events = ( List.map ( fun (ev, str) -> (* In external_events, * special string [""] means current state. *) if str = "" then ev, st else ev, resolve_state prefix str ) st.external_events ) }; st :: flatten prefix rest | Group (name, group) :: rest -> let states = flatten (prefix @ [name]) group in states @ flatten prefix rest in flatten [] state_machine (* Read and parse the state machine C code. *) let state_machine_prologue = let parse_states_file filename = let chan = open_in filename in let lines = ref [] in let lineno = ref 1 in (try while true do let line = input_line chan in let loc : location = filename, !lineno in incr lineno; lines := (loc, line) :: !lines done with End_of_file -> ()); close_in chan; (* Note this list is initially in reverse order. *) let lines = !lines in (* The last line in the file must have a particular form, check * and remove. *) if List.length lines = 0 || snd (List.hd lines) <> "} /* END STATE MACHINE */" then failwithf "%s: unexpected file ending" filename; let lines = List.tl lines in let lines = List.rev lines in (* Find the start of the state machine and split the list into * the prologue and the list of state code fragments. *) let rec loop acc = function | [] -> failwithf "%s: could not find state machine" filename | (_, "STATE_MACHINE {") :: lines -> ((filename, 1), acc), lines | (_, line) :: lines -> loop (acc ^ line ^ "\n") lines in let prologue, lines = loop "" lines in let statecodes = ref [] in let curr_state = ref None in let rex = Str.regexp "^ \\([A-Z0-9][A-Z0-9_\\.]*\\):$" in List.iter ( fun (loc, line) -> if Str.string_match rex line 0 then ( (* new case *) (match !curr_state with | None -> () | Some state -> statecodes := state :: !statecodes); curr_state := Some (Str.matched_group 1 line, "", loc); ) else ( (match !curr_state with | None -> failwithf "%s: missing label" (string_of_location loc) | Some (name, code, loc) -> curr_state := Some (name, code ^ "\n" ^ line, loc) ) ); ) lines; (match !curr_state with | None -> () | Some state -> statecodes := state :: !statecodes); let statecodes = List.rev !statecodes in prologue, statecodes in (* Read all the input files, called [generator/states*.c] *) let files = List.sort compare (Array.to_list (Sys.readdir "generator")) in let files = List.filter ( fun filename -> let len = String.length filename in len >= 8 && String.sub filename 0 6 = "states" && String.sub filename (len-2) 2 = ".c" ) files in let files = List.map ((^) "generator/") files in let files = List.map parse_states_file files in (* Mash together the prologues and the state codes. *) let prologue = String.concat "" ( List.map ( fun ((loc, prologue), _) -> line_directive_of_location loc ^ "\n" ^ prologue ^ "\n" ) files ) in let statecodes = List.concat (List.map snd files) in (* Resolve the state names in the code to paths. *) let statecodes = List.map ( fun (name, code, loc) -> let path = Str.split_delim dot_rex name in let state = find_state path in state, code, loc ) statecodes in (* Parse the state code fragments to get internal state * transitions, marked by "%STATE". *) let rex = Str.regexp "%\\([\\^\\.]*[A-Z0-9][A-Z0-9_\\.]*\\)" in List.iter ( fun (state, code, loc) -> let code = Str.full_split rex code in let code = List.map ( function | Str.Delim str -> Str.Delim (String.sub str 1 (String.length str - 1)) | (Str.Text _) as c -> c ) code in (* Create the list of internal transitions. *) state.parsed <- { state.parsed with internal_transitions = ( filter_map ( function | Str.Delim str -> let next_state = resolve_state state.parsed.prefix str in Some next_state | Str.Text _ -> None ) code ) }; (* Create the final C code fragment. *) state.parsed <- { state.parsed with loc = loc; code = String.concat "" ( List.map ( function | Str.Delim str -> let next_state = resolve_state state.parsed.prefix str in next_state.parsed.state_enum | Str.Text text -> text ) code ) } ) statecodes; prologue (* Verify state transitions are permitted. *) let () = let verify_state_transition from_state to_state = let from_prefix = from_state.parsed.prefix and to_prefix = to_state.parsed.prefix in (* Going from state to state within the same group is always allowed. *) if from_prefix = to_prefix then () (* Going upwards to any state is always allowed. *) else if List.length from_prefix > List.length to_prefix then () (* When going downwards (even into an adjacent tree) you must * always enter a group at the START state. *) else if to_state.name <> "START" then ( failwithf "non-permitted state transition: %s.%s -> %s.%s" (String.concat "." from_prefix) from_state.name (String.concat "." to_prefix) to_state.name ) in List.iter ( fun ({ parsed = { internal_transitions; events } } as state) -> List.iter (verify_state_transition state) internal_transitions; List.iter (fun (_, next_state) -> verify_state_transition state next_state) events ) states (* Write the state machine code. *) let generate_lib_states_h () = generate_header ~extra_sources:["generator/states*.c"] CStyle; pr "enum state {\n"; List.iter ( fun ({ comment; parsed = { display_name; state_enum } }) -> pr " /* %s: %s */\n" display_name comment; pr " %s,\n" state_enum; pr "\n"; ) states; pr "};\n"; pr "\n"; pr "/* These correspond to the external events in generator/generator. */\n"; pr "enum external_event {\n"; List.iter ( fun e -> pr " %s,\n" (c_string_of_external_event e) ) all_external_events; pr "};\n"; pr "\n"; pr "/* State groups. */\n"; pr "enum state_group {\n"; pr " GROUP_TOP,\n"; let rec loop prefix = function | [] -> () | State _ :: rest -> loop prefix rest | Group (name, group) :: rest -> let enum = "GROUP" ^ String.concat "" (List.map ((^) "_") prefix) ^ "_" ^ name in pr " %s,\n" enum; loop (prefix @ [name]) group; loop prefix rest in loop [] state_machine; pr "};\n"; pr "\n"; pr "/* State transitions defined in states.c. */\n"; List.iter ( fun { parsed = { state_enum } } -> pr "extern int nbd_internal_enter_%s (struct nbd_handle *h, bool *blocked);\n" state_enum; ) states let generate_lib_states_c () = generate_header ~extra_sources:["generator/states*.c"] CStyle; pr "%s\n" state_machine_prologue; pr "\n"; pr "#define SET_NEXT_STATE(s) (*blocked = false, *next_state = (s))\n"; pr "#define SET_NEXT_STATE_AND_BLOCK(s) (*next_state = (s))\n"; (* The state machine C code fragments. *) List.iter ( fun { comment; parsed = { display_name; state_enum; loc; code } } -> pr "\n"; pr "/* %s: %s */\n" display_name comment; pr "static int\n"; pr "enter_%s (struct nbd_handle *h,\n" state_enum; pr " enum state *next_state,\n"; pr " bool *blocked)\n"; pr "{\n"; if code <> "" then ( pr "%s\n" (line_directive_of_location loc); pr "%s\n" code ) else pr " return 0;\n"; pr "}\n"; pr "\n"; pr "int\n"; pr "nbd_internal_enter_%s (struct nbd_handle *h, bool *blocked)\n" state_enum; pr "{\n"; pr " int r;\n"; pr " enum state next_state = %s;\n" state_enum; pr "\n"; pr " r = enter_%s (h, &next_state, blocked);\n" state_enum; pr " if (get_next_state (h) != next_state) {\n"; pr " debug (h, \"transition: %%s -> %%s\",\n"; pr " \"%s\",\n" display_name; pr " nbd_internal_state_short_string (next_state));\n"; pr " set_next_state (h, next_state);\n"; pr " }\n"; pr " return r;\n"; pr "}\n"; ) states let generate_lib_states_run_c () = generate_header ~extra_sources:["generator/states*.c"] CStyle; pr "#include <config.h>\n"; pr "\n"; pr "#include <stdio.h>\n"; pr "#include <stdlib.h>\n"; pr "#include <errno.h>\n"; pr "#include <assert.h>\n"; pr "\n"; pr "#include \"libnbd.h\"\n"; pr "#include \"internal.h\"\n"; pr "\n"; pr "/* Run the state machine based on an external event until it would block. */\n"; pr "int\n"; pr "nbd_internal_run (struct nbd_handle *h, enum external_event ev)\n"; pr "{\n"; pr " int r;\n"; pr " bool blocked;\n"; pr "\n"; pr " /* Validate and handle the external event. */\n"; pr " switch (get_next_state (h))\n"; pr " {\n"; List.iter ( fun ({ parsed = { display_name; state_enum; events } } as state) -> pr " case %s:\n" state_enum; if events <> [] then ( pr " switch (ev)\n"; pr " {\n"; List.iter ( fun (e, next_state) -> pr " case %s:\n" (c_string_of_external_event e); if state != next_state then ( pr " set_next_state (h, %s);\n" next_state.parsed.state_enum; pr " debug (h, \"event %%s: %%s -> %%s\",\n"; pr " \"%s\", \"%s\", \"%s\");\n" (string_of_external_event e) display_name next_state.parsed.display_name; ); pr " goto ok;\n"; ) events; pr " default: ; /* nothing, silence GCC warning */\n"; pr " }\n"; ); pr " break;\n"; ) states; pr " }\n"; pr "\n"; pr " set_error (EINVAL, \"external event %%d is invalid in state %%s\",\n"; pr " ev, nbd_internal_state_short_string (get_next_state (h)));\n"; pr " return -1;\n"; pr "\n"; pr " ok:\n"; pr " do {\n"; pr " blocked = true;\n"; pr "\n"; pr " /* Run a single step. */\n"; pr " switch (get_next_state (h))\n"; pr " {\n"; List.iter ( fun { parsed = { state_enum } } -> pr " case %s:\n" state_enum; pr " r = nbd_internal_enter_%s (h, &blocked);\n" state_enum; pr " break;\n" ) states; pr " default:\n"; pr " abort (); /* Should never happen, but keeps GCC happy. */\n"; pr " }\n"; pr "\n"; pr " if (r == -1) {\n"; pr " assert (nbd_get_error () != NULL);\n"; pr " return -1;\n"; pr " }\n"; pr " } while (!blocked);\n"; pr " return 0;\n"; pr "}\n"; pr "\n"; pr "/* Returns whether in the given state read or write would be valid.\n"; pr " * NB: is_locked = false, may_set_error = false.\n"; pr " */\n"; pr "int\n"; pr "nbd_internal_aio_get_direction (enum state state)\n"; pr "{\n"; pr " int r = 0;\n"; pr "\n"; pr " switch (state)\n"; pr " {\n"; List.iter ( fun ({ parsed = { state_enum; events } }) -> pr " case %s:\n" state_enum; List.iter ( fun (e, _) -> match e with | NotifyRead -> pr " r |= LIBNBD_AIO_DIRECTION_READ;\n" | NotifyWrite -> pr " r |= LIBNBD_AIO_DIRECTION_WRITE;\n" | CmdCreate | CmdConnectSockAddr | CmdConnectTCP | CmdConnectCommand | CmdConnectSA | CmdConnectSocket | CmdIssue -> () ) events; pr " break;\n"; ) states; pr " }\n"; pr "\n"; pr " return r;\n"; pr "}\n"; pr "\n"; pr "/* Other functions associated with the state machine. */\n"; pr "const char *\n"; pr "nbd_internal_state_short_string (enum state state)\n"; pr "{\n"; pr " switch (state)\n"; pr " {\n"; List.iter ( fun ({ parsed = { display_name; state_enum } }) -> pr " case %s:\n" state_enum; pr " return \"%s\";\n" display_name ) states; pr " }\n"; pr "\n"; pr " /* This function is only used for debug messages, and\n"; pr " * this should never happen.\n"; pr " */\n"; pr " return \"UNKNOWN!\";\n"; pr "}\n"; pr "\n"; pr "const char *\n"; pr "nbd_unlocked_connection_state (struct nbd_handle *h)\n"; pr "{\n"; pr " switch (get_next_state (h))\n"; pr " {\n"; List.iter ( fun ({ comment; parsed = { display_name; state_enum } }) -> pr " case %s:\n" state_enum; pr " return \"%s\" \": \"\n" display_name; pr " \"%s\";\n" comment; pr "\n"; ) states; pr " }\n"; pr "\n"; pr " return NULL;\n"; pr "}\n"; pr "\n"; pr "/* Map a state to its group name. */\n"; pr "enum state_group\n"; pr "nbd_internal_state_group (enum state state)\n"; pr "{\n"; pr " switch (state) {\n"; List.iter ( fun ({ parsed = { prefix; state_enum } }) -> pr " case %s:\n" state_enum; if prefix = [] then pr " return GROUP_TOP;\n" else pr " return GROUP%s;\n" (String.concat "" (List.map ((^) "_") prefix)) ) states; pr " default:\n"; pr " abort (); /* Should never happen, but keeps GCC happy. */\n"; pr " }\n"; pr "}\n"; pr "\n"; pr "/* Map a state group to its parent group. */\n"; pr "enum state_group\n"; pr "nbd_internal_state_group_parent (enum state_group group)\n"; pr "{\n"; pr " switch (group) {\n"; pr " case GROUP_TOP:\n"; pr " return GROUP_TOP;\n"; let rec loop prefix = function | [] -> () | State _ :: rest -> loop prefix rest | Group (name, group) :: rest -> let enum = "GROUP" ^ String.concat "" (List.map ((^) "_") prefix) ^ "_" ^ name in pr " case %s:\n" enum; if prefix = [] then pr " return GROUP_TOP;\n" else ( let parent = "GROUP" ^ String.concat "" (List.map ((^) "_") prefix) in pr " return %s;\n" parent ); loop (prefix @ [name]) group; loop prefix rest in loop [] state_machine; pr " default:\n"; pr " abort (); /* Should never happen, but keeps GCC happy. */\n"; pr " }\n"; pr "};\n" end (*----------------------------------------------------------------------*) (* Generate C API. *) module C : sig val generate_lib_libnbd_syms : unit -> unit val generate_include_libnbd_h : unit -> unit val generate_lib_unlocked_h : unit -> unit val generate_lib_api_c : unit -> unit val generate_docs_Makefile_inc : unit -> unit val generate_docs_api_links_pod : unit -> unit val generate_docs_api_flag_links_pod : unit -> unit val generate_docs_nbd_pod : string -> call -> unit -> unit val print_arg_list : ?wrap:bool -> ?maxcol:int -> ?handle:bool -> ?types:bool -> arg list -> optarg list -> unit val print_cbarg_list : ?wrap:bool -> ?maxcol:int -> ?types:bool -> cbarg list -> unit val errcode_of_ret : ret -> string option val type_of_ret : ret -> string end = struct (* Check the API definition. *) let () = (* Check functions using may_set_error. *) List.iter ( function (* !may_set_error is incompatible with permitted_states != [] * because an incorrect state will result in set_error being * called by the generated wrapper. *) | name, { permitted_states = (_::_); may_set_error = false } -> failwithf "%s: if may_set_error is false, permitted_states must be empty (any permitted state)" name (* may_set_error = true is incompatible with RUInt because * these calls cannot return an error indication. *) | name, { ret = RUInt; may_set_error = true } -> failwithf "%s: if ret is RUInt, may_set_error must be false" name (* !may_set_error is incompatible with certain parameters because * we have to do a NULL-check on those which may return an error. *) | name, { args; may_set_error = false } when List.exists (function | Closure _ | Enum _ | Flags _ | String _ -> true | _ -> false) args -> failwithf "%s: if args contains Closure/Enum/Flags/String parameter, may_set_error must be false" name (* !may_set_error is incompatible with certain optargs too. *) | name, { optargs; may_set_error = false } when List.exists (function | OFlags _ -> true | _ -> false) optargs -> failwithf "%s: if optargs contains an OFlags parameter, may_set_error must be false" name | _ -> () ) handle_calls; (* first_version must be (0, 0) in handle_calls (we will modify it). *) List.iter ( function | (_, { first_version = (0, 0) }) -> () | (name, _) -> failwithf "%s: first_version field must not be set in handle_calls table" name ) handle_calls; (* Check every entry in first_version corresponds 1-1 with handle_calls. *) let () = let fv_names = List.sort compare (List.map fst first_version) in let hc_names = List.sort compare (List.map fst handle_calls) in if fv_names <> hc_names then ( eprintf "first_version names:\n"; List.iter (eprintf "\t%s\n") fv_names; eprintf "handle_calls names:\n"; List.iter (eprintf "\t%s\n") hc_names; failwithf "first_version and handle_calls are not a 1-1 mapping. You probably forgot to add a new API to the first_version table." ) in (* Check and update first_version field in handle_calls. *) List.iter ( function | (name, entry) -> let major, minor = List.assoc name first_version in (* First stable version must be 1.x where x is even. *) if major <> 1 then failwithf "%s: first_version must be 1.x" name; if minor mod 2 <> 0 then failwithf "%s: first_version must refer to a stable release" name; entry.first_version <- (major, minor) ) handle_calls; (* Because of the way we use completion free callbacks to * free persistent buffers in non-C languages, any function * with a BytesPersistIn/Out parameter must have only one. * And it must have an OClosure completion optarg. *) List.iter ( fun (name, { args; optargs }) -> let is_persistent_buffer_arg = function | BytesPersistIn _ | BytesPersistOut _ -> true | _ -> false and is_oclosure_completion = function | OClosure { cbname = "completion" } -> true | _ -> false in if List.exists is_persistent_buffer_arg args then ( let bpargs = List.filter is_persistent_buffer_arg args in if List.length bpargs >= 2 then failwithf "%s: multiple BytesPersistIn/Out params not supported" name; if not (List.exists is_oclosure_completion optargs) then failwithf "%s: functions with BytesPersistIn/Out arg must have completion callback" name ) ) handle_calls let generate_lib_libnbd_syms () = generate_header HashStyle; (* Sort and group the calls by first_version, and emit them in order. *) let cmp (_, {first_version = a}) (_, {first_version = b}) = compare a b in let calls = List.sort cmp handle_calls in let extract ((_, {first_version}) as call) = first_version, call in let calls = List.map extract calls in let calls = group_by calls in let prev = ref None in List.iter ( fun ((major, minor), calls) -> pr "# Public symbols in libnbd %d.%d:\n" major minor; pr "LIBNBD_%d.%d {\n" major minor; pr " global:\n"; if (major, minor) = (1, 0) then ( pr " nbd_create;\n"; pr " nbd_close;\n"; pr " nbd_get_errno;\n"; pr " nbd_get_error;\n" ); List.iter (fun (name, _) -> pr " nbd_%s;\n" name) calls; (match !prev with | None -> pr " # Everything else is hidden.\n"; pr " local: *;\n"; | Some _ -> () ); pr "}"; (match !prev with | None -> () | Some (old_major, old_minor) -> pr " LIBNBD_%d.%d" old_major old_minor ); pr ";\n"; pr "\n"; prev := Some (major, minor) ) calls let errcode_of_ret = function | RBool | RErr | RFd | RInt | RInt64 | RCookie -> Some "-1" | RStaticString | RString -> Some "NULL" | RUInt -> None (* errors not possible *) let type_of_ret = function | RBool | RErr | RFd | RInt -> "int" | RInt64 | RCookie -> "int64_t" | RStaticString -> "const char *" | RString -> "char *" | RUInt -> "unsigned" let rec name_of_arg = function | Bool n -> [n] | BytesIn (n, len) -> [n; len] | BytesOut (n, len) -> [n; len] | BytesPersistIn (n, len) -> [n; len] | BytesPersistOut (n, len) -> [n; len] | Closure { cbname } -> [ sprintf "%s_callback" cbname; sprintf "%s_user_data" cbname ] | Enum (n, _) -> [n] | Fd n -> [n] | Flags (n, _) -> [n] | Int n -> [n] | Int64 n -> [n] | Path n -> [n] | SockAddrAndLen (n, len) -> [n; len] | String n -> [n] | StringList n -> [n] | UInt n -> [n] | UInt32 n -> [n] | UInt64 n -> [n] let rec print_arg_list ?(wrap = false) ?maxcol ?handle ?types args optargs = pr "("; if wrap then pr_wrap ?maxcol ',' (fun () -> print_arg_list_no_parens ?handle ?types args optargs) else print_arg_list_no_parens ?handle ?types args optargs; pr ")" and print_arg_list_no_parens ?(handle = false) ?(types = true) args optargs = let comma = ref false in if handle then ( comma := true; if types then pr "struct nbd_handle *"; pr "h" ); List.iter ( fun arg -> if !comma then pr ", "; comma := true; match arg with | Bool n -> if types then pr "bool "; pr "%s" n | BytesIn (n, len) | BytesPersistIn (n, len) -> if types then pr "const void *"; pr "%s, " n; if types then pr "size_t "; pr "%s" len | BytesOut (n, len) | BytesPersistOut (n, len) -> if types then pr "void *"; pr "%s, " n; if types then pr "size_t "; pr "%s" len | Closure { cbname; cbargs } -> if types then pr "nbd_%s_callback " cbname; pr "%s_callback" cbname | Enum (n, _) -> if types then pr "int "; pr "%s" n | Flags (n, _) -> if types then pr "uint32_t "; pr "%s" n | Fd n | Int n -> if types then pr "int "; pr "%s" n | Int64 n -> if types then pr "int64_t "; pr "%s" n | Path n | String n -> if types then pr "const char *"; pr "%s" n | StringList n -> if types then pr "char **"; pr "%s" n | SockAddrAndLen (n, len) -> if types then pr "const struct sockaddr *"; pr "%s, " n; if types then pr "socklen_t "; pr "%s" len | UInt n -> if types then pr "unsigned "; pr "%s" n | UInt32 n -> if types then pr "uint32_t "; pr "%s" n | UInt64 n -> if types then pr "uint64_t "; pr "%s" n ) args; List.iter ( fun optarg -> if !comma then pr ", "; comma := true; match optarg with | OClosure { cbname; cbargs } -> if types then pr "nbd_%s_callback " cbname; pr "%s_callback" cbname | OFlags (n, _) -> if types then pr "uint32_t "; pr "%s" n ) optargs let print_call ?wrap ?maxcol name args optargs ret = pr "%s nbd_%s " (type_of_ret ret) name; print_arg_list ~handle:true ?wrap ?maxcol args optargs let print_extern ?wrap name args optargs ret = pr "extern "; print_call ?wrap name args optargs ret; pr ";\n" let rec print_cbarg_list ?(wrap = false) ?maxcol ?types cbargs = pr "("; if wrap then pr_wrap ?maxcol ',' (fun () -> print_cbarg_list_no_parens ?types cbargs) else print_cbarg_list_no_parens ?types cbargs; pr ")" and print_cbarg_list_no_parens ?(types = true) cbargs = if types then pr "void *"; pr "user_data"; List.iter ( fun cbarg -> pr ", "; match cbarg with | CBArrayAndLen (UInt32 n, len) -> if types then pr "uint32_t *"; pr "%s, " n; if types then pr "size_t "; pr "%s" len | CBArrayAndLen _ -> assert false | CBBytesIn (n, len) -> if types then pr "const void *"; pr "%s, " n; if types then pr "size_t "; pr "%s" len | CBInt n -> if types then pr "int "; pr "%s" n | CBInt64 n -> if types then pr "int64_t "; pr "%s" n | CBMutable (Int n) -> if types then pr "int *"; pr "%s" n | CBMutable arg -> assert false | CBString n -> if types then pr "const char *"; pr "%s" n | CBUInt n -> if types then pr "unsigned "; pr "%s" n | CBUInt64 n -> if types then pr "uint64_t "; pr "%s" n ) cbargs (* Callback structs/typedefs in <libnbd.h> *) let print_closure_structs () = pr "/* These are used for callback parameters. They are passed\n"; pr " * by value not by reference. See CALLBACKS in libnbd(3).\n"; pr " */\n"; List.iter ( fun { cbname; cbargs } -> pr "typedef struct {\n"; pr " int (*callback) "; print_cbarg_list ~wrap:true cbargs; pr ";\n"; pr " void *user_data;\n"; pr " void (*free) (void *user_data);\n"; pr "} nbd_%s_callback;\n" cbname; pr "\n"; ) all_closures; pr "/* Note NBD_NULL_* are only generated for callbacks which are\n"; pr " * optional. (See OClosure in the generator).\n"; pr " */\n"; let oclosures = let optargs = List.map (fun (_, { optargs }) -> optargs) handle_calls in let optargs = List.flatten optargs in let optargs = filter_map (function OClosure cb -> Some cb | _ -> None) optargs in sort_uniq optargs in List.iter ( fun { cbname } -> pr "#define NBD_NULL_%s ((nbd_%s_callback) { .callback = NULL })\n" (String.uppercase_ascii cbname) cbname; ) oclosures; pr "\n" let print_extern_and_define ?wrap name args optargs ret = let name_upper = String.uppercase_ascii name in print_extern ?wrap name args optargs ret; pr "#define LIBNBD_HAVE_NBD_%s 1\n" name_upper; pr "\n" let print_ns_ctxt ns ns_upper ctxt consts = let ctxt_upper = String.uppercase_ascii ctxt in pr "#define LIBNBD_CONTEXT_%s_%s \"%s:%s\"\n" ns_upper ctxt_upper ns ctxt; pr "\n"; pr "/* \"%s:%s\" context related constants */\n" ns ctxt; List.iter (fun (n, i) -> pr "#define LIBNBD_%-30s %d\n" n i) consts let print_ns ns ctxts = let ns_upper = String.uppercase_ascii ns in pr "/* \"%s\" namespace */\n" ns; pr "#define LIBNBD_NAMESPACE_%s \"%s:\"\n" ns_upper ns; pr "\n"; pr "/* \"%s\" namespace contexts */\n" ns; List.iter ( fun (ctxt, consts) -> print_ns_ctxt ns ns_upper ctxt consts ) ctxts; pr "\n" let generate_include_libnbd_h () = generate_header CStyle; pr "#ifndef LIBNBD_H\n"; pr "#define LIBNBD_H\n"; pr "\n"; pr "/* This is the public interface to libnbd, a client library for\n"; pr " * accessing Network Block Device (NBD) servers.\n"; pr " *\n"; pr " * Please read the libnbd(3) manual page to\n"; pr " * find out how to use this library.\n"; pr " */\n"; pr "\n"; pr "#include <stdbool.h>\n"; pr "#include <stdint.h>\n"; pr "#include <sys/socket.h>\n"; pr "\n"; pr "#ifdef __cplusplus\n"; pr "extern \"C\" {\n"; pr "#endif\n"; pr "\n"; pr "struct nbd_handle;\n"; pr "\n"; List.iter ( fun { enum_prefix; enums } -> List.iter ( fun (enum, i) -> let enum = sprintf "LIBNBD_%s_%s" enum_prefix enum in pr "#define %-40s %d\n" enum i ) enums; pr "\n" ) all_enums; List.iter ( fun { flag_prefix; flags } -> List.iter ( fun (flag, i) -> let flag = sprintf "LIBNBD_%s_%s" flag_prefix flag in pr "#define %-40s %d\n" flag i ) flags; pr "\n" ) all_flags; List.iter ( fun (n, i) -> let n = sprintf "LIBNBD_%s" n in pr "#define %-40s %d\n" n i ) constants; pr "\n"; pr "extern struct nbd_handle *nbd_create (void);\n"; pr "#define LIBNBD_HAVE_NBD_CREATE 1\n"; pr "\n"; pr "extern void nbd_close (struct nbd_handle *h);\n"; pr "#define LIBNBD_HAVE_NBD_CLOSE 1\n"; pr "\n"; pr "extern const char *nbd_get_error (void);\n"; pr "#define LIBNBD_HAVE_NBD_GET_ERROR 1\n"; pr "\n"; pr "extern int nbd_get_errno (void);\n"; pr "#define LIBNBD_HAVE_NBD_GET_ERRNO 1\n"; pr "\n"; print_closure_structs (); List.iter ( fun (name, { args; optargs; ret }) -> print_extern_and_define ~wrap:true name args optargs ret ) handle_calls; List.iter ( fun (ns, ctxts) -> print_ns ns ctxts ) metadata_namespaces; pr "#ifdef __cplusplus\n"; pr "}\n"; pr "#endif\n"; pr "\n"; pr "#endif /* LIBNBD_H */\n" let generate_lib_unlocked_h () = generate_header CStyle; pr "#ifndef LIBNBD_UNLOCKED_H\n"; pr "#define LIBNBD_UNLOCKED_H\n"; pr "\n"; List.iter ( fun (name, { args; optargs; ret }) -> print_extern ~wrap:true ("unlocked_" ^ name) args optargs ret ) handle_calls; pr "\n"; pr "#endif /* LIBNBD_UNLOCKED_H */\n" let permitted_state_text permitted_states = assert (permitted_states <> []); String.concat ", or " (List.map ( function | Created -> "newly created" | Connecting -> "connecting" | Connected -> "connected and finished handshaking with the server" | Closed -> "shut down" | Dead -> "dead" ) permitted_states ) (* Generate wrappers around each API call which are a place to * grab the thread mutex (lock) and do logging. *) let generate_lib_api_c () = (* Print the wrapper added around all API calls. *) let rec print_wrapper (name, {args; optargs; ret; permitted_states; is_locked; may_set_error}) = if permitted_states <> [] then ( pr "static inline bool\n"; pr "%s_in_permitted_state (struct nbd_handle *h)\n" name; pr "{\n"; pr " const enum state state = get_public_state (h);\n"; pr "\n"; let tests = List.map ( function | Created -> "nbd_internal_is_state_created (state)" | Connecting -> "nbd_internal_is_state_connecting (state)" | Connected -> "nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state)" | Closed -> "nbd_internal_is_state_closed (state)" | Dead -> "nbd_internal_is_state_dead (state)" ) permitted_states in pr " if (!(%s)) {\n" (String.concat " ||\n " tests); pr " set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL,\n"; pr " \"invalid state: %%s: the handle must be %%s\",\n"; pr " nbd_internal_state_short_string (state),\n"; pr " \"%s\");\n" (permitted_state_text permitted_states); pr " return false;\n"; pr " }\n"; pr " return true;\n"; pr "}\n"; pr "\n" ); let need_out_label = ref false in let ret_c_type = type_of_ret ret and errcode = errcode_of_ret ret in pr "%s\n" ret_c_type; pr "nbd_%s " name; print_arg_list ~wrap:true ~handle:true args optargs; pr "\n"; pr "{\n"; pr " %s ret;\n" ret_c_type; pr "\n"; if may_set_error then ( pr " nbd_internal_set_error_context (\"nbd_%s\");\n" name; pr "\n"; ) else pr " /* This function must not call set_error. */\n"; (* Lock the handle. *) if is_locked then pr " pthread_mutex_lock (&h->lock);\n"; if may_set_error then ( print_trace_enter args optargs; pr "\n" ); (* Check current state is permitted for this call. *) if permitted_states <> [] then ( let value = match errcode with | Some value -> value | None -> assert false in pr " if (unlikely (!%s_in_permitted_state (h))) {\n" name; pr " ret = %s;\n" value; pr " goto out;\n"; pr " }\n"; need_out_label := true ); (* Check parameters are valid. *) let print_flags_check n { flag_prefix; flags } = let value = match errcode with | Some value -> value | None -> assert false in let mask = List.fold_left (lor) 0 (List.map snd flags) in pr " if (unlikely ((%s & ~%d) != 0)) {\n" n mask; pr " set_error (EINVAL, \"%%s: invalid value for flag: %%d\",\n"; pr " \"%s\", %s);\n" n n; pr " ret = %s;\n" value; pr " goto out;\n"; pr " }\n"; need_out_label := true in List.iter ( function | Closure { cbname } -> let value = match errcode with | Some value -> value | None -> assert false in pr " if (CALLBACK_IS_NULL (%s_callback)) {\n" cbname; pr " set_error (EFAULT, \"%%s cannot be NULL\", \"%s\");\n" cbname; pr " ret = %s;\n" value; pr " goto out;\n"; pr " }\n"; need_out_label := true | Enum (n, { enum_prefix; enums }) -> let value = match errcode with | Some value -> value | None -> assert false in pr " switch (%s) {\n" n; List.iter ( fun (enum, _) -> pr " case LIBNBD_%s_%s:\n" enum_prefix enum ) enums; pr " break;\n"; pr " default:\n"; pr " set_error (EINVAL, \"%%s: invalid value for parameter: %%d\",\n"; pr " \"%s\", %s);\n" n n; pr " ret = %s;\n" value; pr " goto out;\n"; pr " }\n"; need_out_label := true | Flags (n, flags) -> print_flags_check n flags | String n -> let value = match errcode with | Some value -> value | None -> assert false in pr " if (%s == NULL) {\n" n; pr " set_error (EFAULT, \"%%s cannot be NULL\", \"%s\");\n" n; pr " ret = %s;\n" value; pr " goto out;\n"; pr " }\n"; need_out_label := true | _ -> () ) args; List.iter ( function | OClosure _ -> () | OFlags (n, flags) -> print_flags_check n flags ) optargs; (* Make the call. *) pr " ret = nbd_unlocked_%s " name; print_arg_list ~wrap:true ~types:false ~handle:true args optargs; pr ";\n"; if may_set_error then ( pr "\n"; print_trace_leave ret; pr "\n" ); if !need_out_label then pr " out:\n"; if is_locked then ( pr " if (h->public_state != get_next_state (h))\n"; pr " h->public_state = get_next_state (h);\n"; pr " pthread_mutex_unlock (&h->lock);\n" ); pr " return ret;\n"; pr "}\n"; pr "\n" (* Print the trace when we enter a call with debugging enabled. *) and print_trace_enter args optargs = pr " debug (h, \"enter:"; List.iter ( function | Bool n -> pr " %s=%%s" n | BytesIn (n, count) | BytesPersistIn (n, count) | BytesOut (n, count) | BytesPersistOut (n, count) -> pr " %s=<buf> %s=%%zu" n count | Closure { cbname } -> pr " %s=<fun>" cbname | Enum (n, _) -> pr " %s=%%d" n | Flags (n, _) -> pr " %s=0x%%x" n | Fd n | Int n -> pr " %s=%%d" n | Int64 n -> pr " %s=%%\" PRIi64 \"" n | SockAddrAndLen (n, len) -> pr " %s=<sockaddr> %s=%%d" n len | Path n | String n -> pr " %s=\\\"%%s\\\"" n | StringList n -> pr " %s=<list>" n | UInt n -> pr " %s=%%u" n | UInt32 n -> pr " %s=%%\" PRIu32 \"" n | UInt64 n -> pr " %s=%%\" PRIu64 \"" n ) args; List.iter ( function | OClosure { cbname } -> pr " %s=%%s" cbname | OFlags (n, _) -> pr " %s=0x%%x" n ) optargs; pr "\""; List.iter ( function | Bool n -> pr ", %s ? \"true\" : \"false\"" n | BytesIn (_, count) | BytesPersistIn (_, count) | BytesOut (_, count) | BytesPersistOut (_, count) -> pr ", %s" count | Closure { cbname } -> () | Enum (n, _) -> pr ", %s" n | Flags (n, _) -> pr ", %s" n | Fd n | Int n -> pr ", %s" n | Int64 n -> pr ", %s" n | SockAddrAndLen (_, len) -> pr ", (int) %s" len | Path n | String n -> pr ", %s ? %s : \"NULL\"" n n | StringList n -> () | UInt n | UInt32 n | UInt64 n -> pr ", %s" n ) args; List.iter ( function | OClosure { cbname } -> pr ", CALLBACK_IS_NULL (%s_callback) ? \"<fun>\" : \"NULL\"" cbname | OFlags (n, _) -> pr ", %s" n ) optargs; pr ");\n" (* Print the trace when we leave a call with debugging enabled. *) and print_trace_leave ret = pr " if_debug (h) {\n"; let errcode = errcode_of_ret ret in (match errcode with | Some r -> pr " if (ret == %s)\n" r; | None -> pr " if (0)\n"; ); pr " debug (h, \"leave: error=\\\"%%s\\\"\", nbd_get_error ());\n"; pr " else\n"; pr " debug (h, \"leave: ret="; (match ret with | RBool | RErr | RFd | RInt -> pr "%%d" | RInt64 | RCookie -> pr "%%\" PRIi64 \"" | RStaticString | RString -> pr "\\\"%%s\\\"" | RUInt -> pr "%%u" ); pr "\", ret);\n"; pr " }\n" in generate_header CStyle; pr "#include <config.h>\n"; pr "\n"; pr "#include <stdio.h>\n"; pr "#include <stdlib.h>\n"; pr "#include <stdint.h>\n"; pr "#include <inttypes.h>\n"; pr "#include <errno.h>\n"; pr "\n"; pr "#include <pthread.h>\n"; pr "\n"; pr "#include \"libnbd.h\"\n"; pr "#include \"internal.h\"\n"; pr "\n"; List.iter print_wrapper handle_calls (* We generate a fragment of Makefile.am containing the list * of generated functions, used in rules for building the manual * pages. We exploit GNU make's sinclude to use this file without * upsetting automake. *) let generate_docs_Makefile_inc () = generate_header HashStyle; pr "api_built += \\\n"; List.iter ( fun (name, _) -> pr "\tnbd_%s \\\n" name; ) handle_calls; pr "\t$(NULL)\n" let generate_docs_api_links_pod () = let pages = List.map (fun (name, _) -> sprintf "nbd_%s(3)" name) handle_calls in let pages = "nbd_create(3)" :: "nbd_close(3)" :: "nbd_get_error(3)" :: "nbd_get_errno(3)" :: pages in let pages = List.sort compare pages in List.iteri ( fun i page -> if i > 0 then pr ",\n"; pr "L<%s>" page ) pages; pr ".\n" let generate_docs_api_flag_links_pod () = let pages = filter_map ( fun (name, _) -> if is_prefix name "is_" || is_prefix name "can_" then Some (sprintf "nbd_%s(3)" name) else None ) handle_calls in let pages = List.sort compare pages in List.iteri ( fun i page -> if i > 0 then pr ",\n"; pr "L<%s>" page ) pages; pr ".\n" let print_docs_closure { cbname; cbargs } = pr " typedef struct {\n"; pr " int (*callback) "; print_cbarg_list ~wrap:true ~maxcol:60 cbargs; pr ";\n"; pr " void *user_data;\n"; pr " void (*free) (void *user_data);\n"; pr " } nbd_%s_callback;\n" cbname let generate_docs_nbd_pod name { args; optargs; ret; shortdesc; longdesc; example; see_also; permitted_states; may_set_error; first_version = (major, minor) } () = pr "=head1 NAME\n"; pr "\n"; pr_wrap ' ' (fun () -> pr "nbd_%s - %s" name shortdesc); pr "\n"; pr "\n"; pr "=head1 SYNOPSIS\n"; pr "\n"; pr " #include <libnbd.h>\n"; pr "\n"; List.iter ( function | Closure cb -> print_docs_closure cb; pr "\n" | _ -> () ) args; List.iter ( function | OClosure cb -> print_docs_closure cb; pr "\n" | _ -> () ) optargs; pr " "; print_call ~wrap:true ~maxcol:60 name args optargs ret; pr ";\n"; pr "\n"; pr "=head1 DESCRIPTION\n"; pr "\n"; pr "%s\n" longdesc; pr "\n"; pr "=head1 RETURN VALUE\n"; pr "\n"; let errcode = errcode_of_ret ret in (match ret with | RBool -> pr "This call returns a boolean value.\n" | RStaticString -> pr "This call returns a statically allocated string, valid for the\n"; pr "lifetime of the process or until libnbd is unloaded by\n"; pr "L<dlclose(3)>. You B<must not> try to free the string.\n" | RErr -> pr "If the call is successful the function returns C<0>.\n" | RFd -> pr "This call returns a file descriptor.\n" | RInt -> pr "This call returns an integer E<ge> C<0>.\n"; | RInt64 -> pr "This call returns a 64 bit signed integer E<ge> C<0>.\n"; | RCookie -> pr "This call returns the 64 bit cookie of the command.\n"; pr "The cookie is E<ge> C<1>.\n"; pr "Cookies are unique (per libnbd handle, not globally).\n" | RString -> pr "This call returns a string. The caller must free the\n"; pr "returned string to avoid a memory leak.\n"; | RUInt -> pr "This call returns a bitmask.\n" ); pr "\n"; pr "=head1 ERRORS\n"; pr "\n"; if may_set_error then ( let value = match errcode with | Some value -> value | None -> assert false in pr "On error C<%s> is returned.\n" value; pr "\n"; pr "Refer to L<libnbd(3)/ERROR HANDLING>\n"; pr "for how to get further details of the error.\n" ) else pr "This function does not fail.\n"; pr "\n"; if permitted_states <> [] then ( pr "=head1 HANDLE STATE\n"; pr "\n"; pr "The handle must be\n"; pr "%s,\n" (permitted_state_text permitted_states); pr "otherwise this call will return an error.\n"; pr "\n" ); pr "=head1 VERSION\n"; pr "\n"; pr "This function first appeared in libnbd %d.%d.\n" major minor; pr "\n"; pr "If you need to test if this function is available at compile time\n"; pr "check if the following macro is defined:\n"; pr "\n"; pr " #define LIBNBD_HAVE_NBD_%s 1\n" (String.uppercase_ascii name); pr "\n"; (match example with | None -> () | Some filename -> pr "=head1 EXAMPLE\n"; pr "\n"; pr "This example is also available as F<%s>\n" filename; pr "in the libnbd source code.\n"; pr "\n"; let chan = open_in filename in (try while true do let line = input_line chan in if String.length line > 60 then failwithf "%s: %s: line too long in example" name filename; pr " %s\n" line done with End_of_file -> () ); close_in chan; pr "\n" ); pr "=head1 SEE ALSO\n"; pr "\n"; List.iter (pr "%s,\n") see_also; pr "L<nbd_create(3)>,\n"; pr "L<libnbd(3)>.\n"; pr "\n"; pr "\ =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. " end (*----------------------------------------------------------------------*) (* Python bindings. *) module Python : sig val generate_python_methods_h : unit -> unit val generate_python_libnbdmod_c : unit -> unit val generate_python_methods_c : unit -> unit val generate_python_nbd_py : unit -> unit end = struct let generate_python_methods_h () = generate_header CStyle; pr "#ifndef LIBNBD_METHODS_H\n"; pr "#define LIBNBD_METHODS_H\n"; pr "\n"; pr "#define PY_SSIZE_T_CLEAN 1\n"; pr "#include <Python.h>\n"; pr "\n"; pr "#include <assert.h>\n"; pr "\n"; pr "\ struct py_aio_buffer { Py_ssize_t len; void *data; }; extern char **nbd_internal_py_get_string_list (PyObject *); extern void nbd_internal_py_free_string_list (char **); extern struct py_aio_buffer *nbd_internal_py_get_aio_buffer (PyObject *); static inline struct nbd_handle * get_handle (PyObject *obj) { assert (obj); assert (obj != Py_None); return (struct nbd_handle *) PyCapsule_GetPointer(obj, \"nbd_handle\"); } /* nbd.Error exception. */ extern PyObject *nbd_internal_py_Error; static inline void raise_exception () { PyObject *args = Py_BuildValue (\"si\", nbd_get_error (), nbd_get_errno ()); if (args != NULL) PyErr_SetObject (nbd_internal_py_Error, args); } "; List.iter ( fun name -> pr "extern PyObject *nbd_internal_py_%s (PyObject *self, PyObject *args);\n" name; ) ([ "create"; "close"; "alloc_aio_buffer"; "aio_buffer_from_bytearray"; "aio_buffer_to_bytearray"; "aio_buffer_size" ] @ List.map fst handle_calls); pr "\n"; pr "#endif /* LIBNBD_METHODS_H */\n" let generate_python_libnbdmod_c () = generate_header CStyle; pr "#include <config.h>\n"; pr "\n"; pr "#define PY_SSIZE_T_CLEAN 1\n"; pr "#include <Python.h>\n"; pr "\n"; pr "#include <stdio.h>\n"; pr "#include <stdlib.h>\n"; pr "#include <assert.h>\n"; pr "\n"; pr "#include <libnbd.h>\n"; pr "\n"; pr "#include \"methods.h\"\n"; pr "\n"; pr "static PyMethodDef methods[] = {\n"; List.iter ( fun name -> pr " { (char *) \"%s\", nbd_internal_py_%s, METH_VARARGS, NULL },\n" name name; ) ([ "create"; "close"; "alloc_aio_buffer"; "aio_buffer_from_bytearray"; "aio_buffer_to_bytearray"; "aio_buffer_size" ] @ List.map fst handle_calls); pr " { NULL, NULL, 0, NULL }\n"; pr "};\n"; pr "\n"; pr "\ static struct PyModuleDef moduledef = { PyModuleDef_HEAD_INIT, \"libnbdmod\", /* m_name */ \"libnbd module\", /* m_doc */ -1, /* m_size */ methods, /* m_methods */ NULL, /* m_reload */ NULL, /* m_traverse */ NULL, /* m_clear */ NULL, /* m_free */ }; /* nbd.Error exception. */ PyObject *nbd_internal_py_Error; extern PyMODINIT_FUNC PyInit_libnbdmod (void); PyMODINIT_FUNC PyInit_libnbdmod (void) { PyObject *mod; mod = PyModule_Create (&moduledef); if (mod == NULL) return NULL; nbd_internal_py_Error = PyErr_NewException (\"nbd.Error\", NULL, NULL); if (nbd_internal_py_Error == NULL) return NULL; PyModule_AddObject (mod, \"Error\", nbd_internal_py_Error); return mod; } " (* Functions with a Closure parameter are special because we * have to generate wrapper functions which translate the * callbacks back to Python. *) let print_python_closure_wrapper { cbname; cbargs } = pr "/* Wrapper for %s callback. */\n" cbname; pr "static int\n"; pr "%s_wrapper " cbname; C.print_cbarg_list ~wrap:true cbargs; pr "\n"; pr "{\n"; pr " const struct user_data *data = user_data;\n"; pr " int ret = 0;\n"; pr "\n"; pr " PyGILState_STATE py_save = PyGILState_UNLOCKED;\n"; pr " PyObject *py_args, *py_ret;\n"; List.iter ( function | CBArrayAndLen (UInt32 n, len) -> pr " PyObject *py_%s = PyList_New (%s);\n" n len; pr " for (size_t i = 0; i < %s; ++i)\n" len; pr " PyList_SET_ITEM (py_%s, i, PyLong_FromUnsignedLong (%s[i]));\n" n n | CBBytesIn _ | CBInt _ | CBInt64 _ -> () | CBMutable (Int n) -> pr " PyObject *py_%s_modname = PyUnicode_FromString (\"ctypes\");\n" n; pr " if (!py_%s_modname) { PyErr_PrintEx (0); return -1; }\n" n; pr " PyObject *py_%s_mod = PyImport_Import (py_%s_modname);\n" n n; pr " Py_DECREF (py_%s_modname);\n" n; pr " if (!py_%s_mod) { PyErr_PrintEx (0); return -1; }\n" n; pr " PyObject *py_%s = PyObject_CallMethod (py_%s_mod, \"c_int\", \"i\", *%s);\n" n n n; pr " if (!py_%s) { PyErr_PrintEx (0); return -1; }\n" n; | CBString _ | CBUInt _ | CBUInt64 _ -> () | CBArrayAndLen _ | CBMutable _ -> assert false ) cbargs; pr "\n"; pr " py_args = Py_BuildValue (\"(\""; List.iter ( function | CBArrayAndLen (UInt32 n, len) -> pr " \"O\"" | CBBytesIn (n, len) -> pr " \"y#\"" | CBInt n -> pr " \"i\"" | CBInt64 n -> pr " \"L\"" | CBMutable (Int n) -> pr " \"O\"" | CBString n -> pr " \"s\"" | CBUInt n -> pr " \"I\"" | CBUInt64 n -> pr " \"K\"" | CBArrayAndLen _ | CBMutable _ -> assert false ) cbargs; pr " \")\""; List.iter ( function | CBArrayAndLen (UInt32 n, _) -> pr ", py_%s" n | CBBytesIn (n, len) -> pr ", %s, (int) %s" n len | CBMutable (Int n) -> pr ", py_%s" n | CBInt n | CBInt64 n | CBString n | CBUInt n | CBUInt64 n -> pr ", %s" n | CBArrayAndLen _ | CBMutable _ -> assert false ) cbargs; pr ");\n"; pr " Py_INCREF (py_args);\n"; pr "\n"; pr " if (PyEval_ThreadsInitialized ())\n"; pr " py_save = PyGILState_Ensure ();\n"; pr "\n"; pr " py_ret = PyObject_CallObject (data->fn, py_args);\n"; pr "\n"; pr " if (PyEval_ThreadsInitialized ())\n"; pr " PyGILState_Release (py_save);\n"; pr "\n"; pr " Py_DECREF (py_args);\n"; pr "\n"; pr " if (py_ret != NULL) {\n"; pr " if (PyLong_Check (py_ret))\n"; pr " ret = PyLong_AsLong (py_ret);\n"; pr " else\n"; pr " /* If it's not a long, just assume it's 0. */\n"; pr " ret = 0;\n"; pr " Py_DECREF (py_ret);\n"; pr " }\n"; pr " else {\n"; pr " /* Special case failed assertions to be fatal. */\n"; pr " if (PyErr_ExceptionMatches (PyExc_AssertionError)) {\n"; pr " PyErr_Print ();\n"; pr " abort ();\n"; pr " }\n"; pr " ret = -1;\n"; pr " PyErr_PrintEx (0); /* print exception */\n"; pr " };\n"; pr "\n"; List.iter ( function | CBArrayAndLen (UInt32 n, _) -> pr " Py_DECREF (py_%s);\n" n | CBMutable (Int n) -> pr " PyObject *py_%s_ret = PyObject_GetAttrString (py_%s, \"value\");\n" n n; pr " *%s = PyLong_AsLong (py_%s_ret);\n" n n; pr " Py_DECREF (py_%s_ret);\n" n; pr " Py_DECREF (py_%s);\n" n | CBBytesIn _ | CBInt _ | CBInt64 _ | CBString _ | CBUInt _ | CBUInt64 _ -> () | CBArrayAndLen _ | CBMutable _ -> assert false ) cbargs; pr " return ret;\n"; pr "}\n"; pr "\n" (* Generate the Python binding. *) let print_python_binding name { args; optargs; ret; may_set_error } = pr "PyObject *\n"; pr "nbd_internal_py_%s (PyObject *self, PyObject *args)\n" name; pr "{\n"; pr " PyObject *py_h;\n"; pr " struct nbd_handle *h;\n"; pr " %s ret;\n" (C.type_of_ret ret); pr " PyObject *py_ret;\n"; List.iter ( function | Bool n -> pr " int %s;\n" n | BytesIn (n, _) -> pr " Py_buffer %s;\n" n | BytesOut (n, count) -> pr " char *%s;\n" n; pr " Py_ssize_t %s;\n" count | BytesPersistIn (n, _) | BytesPersistOut (n, _) -> pr " PyObject *%s; /* PyCapsule pointing to struct py_aio_buffer */\n" n; pr " struct py_aio_buffer *%s_buf;\n" n | Closure { cbname } -> pr " struct user_data *%s_user_data = alloc_user_data ();\n" cbname; pr " if (%s_user_data == NULL) return NULL;\n" cbname; pr " nbd_%s_callback %s = { .callback = %s_wrapper,\n" cbname cbname cbname; pr " .user_data = %s_user_data,\n" cbname; pr " .free = free_user_data };\n" | Enum (n, _) -> pr " int %s;\n" n | Flags (n, _) -> pr " uint32_t %s_u32;\n" n; pr " unsigned int %s; /* really uint32_t */\n" n | Fd n | Int n -> pr " int %s;\n" n | Int64 n -> pr " int64_t %s_i64;\n" n; pr " long long %s; /* really int64_t */\n" n | Path n -> pr " PyObject *py_%s = NULL;\n" n; pr " char *%s = NULL;\n" n | SockAddrAndLen (n, _) -> pr " /* XXX Complicated - Python uses a tuple of different\n"; pr " * lengths for the different socket types.\n"; pr " */\n"; pr " PyObject *%s;\n" n | String n -> pr " const char *%s;\n" n | StringList n -> pr " PyObject *py_%s;\n" n; pr " char **%s = NULL;\n" n | UInt n -> pr " unsigned int %s;\n" n | UInt32 n -> pr " uint32_t %s_u32;\n" n; pr " unsigned int %s; /* really uint32_t */\n" n | UInt64 n -> pr " uint64_t %s_u64;\n" n; pr " unsigned long long %s; /* really uint64_t */\n" n ) args; List.iter ( function | OClosure { cbname } -> pr " struct user_data *%s_user_data = alloc_user_data ();\n" cbname; pr " if (%s_user_data == NULL) return NULL;\n" cbname; pr " nbd_%s_callback %s = { .callback = %s_wrapper,\n" cbname cbname cbname; pr " .user_data = %s_user_data,\n" cbname; pr " .free = free_user_data };\n" | OFlags (n, _) -> pr " uint32_t %s_u32;\n" n; pr " unsigned int %s; /* really uint32_t */\n" n ) optargs; pr "\n"; (* Parse the Python parameters. *) pr " if (!PyArg_ParseTuple (args, (char *) \"O\""; List.iter ( function | Bool n -> pr " \"b\"" | BytesIn (n, _) -> pr " \"y*\"" | BytesPersistIn (n, _) -> pr " \"O\"" | BytesOut (_, count) -> pr " \"n\"" | BytesPersistOut (_, count) -> pr " \"O\"" | Closure _ -> pr " \"O\"" | Enum _ -> pr " \"i\"" | Flags _ -> pr " \"I\"" | Fd n | Int n -> pr " \"i\"" | Int64 n -> pr " \"L\"" | Path n -> pr " \"O&\"" | SockAddrAndLen (n, _) -> pr " \"O\"" | String n -> pr " \"s\"" | StringList n -> pr " \"O\"" | UInt n -> pr " \"I\"" | UInt32 n -> pr " \"I\"" | UInt64 n -> pr " \"K\"" ) args; List.iter ( function | OClosure _ -> pr " \"O\"" | OFlags _ -> pr " \"I\"" ) optargs; pr "\n"; pr " \":nbd_%s\",\n" name; pr " &py_h"; List.iter ( function | Bool n -> pr ", &%s" n | BytesIn (n, _) | BytesPersistIn (n, _) | BytesPersistOut (n, _) -> pr ", &%s" n | BytesOut (_, count) -> pr ", &%s" count | Closure { cbname } -> pr ", &%s_user_data->fn" cbname | Enum (n, _) -> pr ", &%s" n | Flags (n, _) -> pr ", &%s" n | Fd n | Int n -> pr ", &%s" n | Int64 n -> pr ", &%s" n | Path n -> pr ", PyUnicode_FSConverter, &py_%s" n | SockAddrAndLen (n, _) -> pr ", &%s" n | String n -> pr ", &%s" n | StringList n -> pr ", &py_%s" n | UInt n -> pr ", &%s" n | UInt32 n -> pr ", &%s" n | UInt64 n -> pr ", &%s" n ) args; List.iter ( function | OClosure { cbname } -> pr ", &%s_user_data->fn" cbname | OFlags (n, _) -> pr ", &%s" n ) optargs; pr "))\n"; pr " return NULL;\n"; pr " h = get_handle (py_h);\n"; List.iter ( function | Bool _ -> () | BytesIn _ -> () | BytesOut (n, count) -> pr " %s = malloc (%s);\n" n count | BytesPersistIn (n, _) | BytesPersistOut (n, _) -> pr " %s_buf = nbd_internal_py_get_aio_buffer (%s);\n" n n | Closure { cbname } -> pr " /* Increment refcount since pointer may be saved by libnbd. */\n"; pr " Py_INCREF (%s_user_data->fn);\n" cbname; pr " if (!PyCallable_Check (%s_user_data->fn)) {\n" cbname; pr " PyErr_SetString (PyExc_TypeError,\n"; pr " \"callback parameter %s is not callable\");\n" cbname; pr " return NULL;\n"; pr " }\n" | Enum _ -> () | Flags (n, _) -> pr " %s_u32 = %s;\n" n n | Fd _ | Int _ -> () | Int64 n -> pr " %s_i64 = %s;\n" n n | Path n -> pr " %s = PyBytes_AS_STRING (py_%s);\n" n n; pr " assert (%s != NULL);\n" n | SockAddrAndLen _ -> pr " abort (); /* XXX SockAddrAndLen not implemented */\n"; | String _ -> () | StringList n -> pr " %s = nbd_internal_py_get_string_list (py_%s);\n" n n; pr " if (!%s) { py_ret = NULL; goto out; }\n" n | UInt _ -> () | UInt32 n -> pr " %s_u32 = %s;\n" n n | UInt64 n -> pr " %s_u64 = %s;\n" n n ) args; List.iter ( function | OClosure { cbname } -> pr " if (%s_user_data->fn != Py_None) {\n" cbname; pr " /* Increment refcount since pointer may be saved by libnbd. */\n"; pr " Py_INCREF (%s_user_data->fn);\n" cbname; pr " if (!PyCallable_Check (%s_user_data->fn)) {\n" cbname; pr " PyErr_SetString (PyExc_TypeError,\n"; pr " \"callback parameter %s is not callable\");\n" cbname; pr " return NULL;\n"; pr " }\n"; pr " }\n"; pr " else\n"; pr " %s.callback = NULL; /* we're not going to call it */\n" cbname | OFlags (n, _) -> pr " %s_u32 = %s;\n" n n ) optargs; (* If there is a BytesPersistIn/Out parameter then we need to * increment the refcount and save the pointer into * completion_callback.user_data so we can decrement the * refcount on command completion. *) List.iter ( function | BytesPersistIn (n, _) | BytesPersistOut (n, _) -> pr " /* Increment refcount since buffer may be saved by libnbd. */\n"; pr " Py_INCREF (%s);\n" n; pr " completion_user_data->buf = %s;\n" n; | _ -> () ) args; (* Call the underlying C function. *) pr " ret = nbd_%s (h" name; List.iter ( function | Bool n -> pr ", %s" n | BytesIn (n, _) -> pr ", %s.buf, %s.len" n n | BytesOut (n, count) -> pr ", %s, %s" n count | BytesPersistIn (n, _) | BytesPersistOut (n, _) -> pr ", %s_buf->data, %s_buf->len" n n | Closure { cbname } -> pr ", %s" cbname | Enum (n, _) -> pr ", %s" n | Flags (n, _) -> pr ", %s_u32" n | Fd n | Int n -> pr ", %s" n | Int64 n -> pr ", %s_i64" n | Path n -> pr ", %s" n | SockAddrAndLen (n, _) -> pr ", /* XXX */ (void *) %s, 0" n | String n -> pr ", %s" n | StringList n -> pr ", %s" n | UInt n -> pr ", %s" n | UInt32 n -> pr ", %s_u32" n | UInt64 n -> pr ", %s_u64" n ) args; List.iter ( function | OClosure { cbname } -> pr ", %s" cbname | OFlags (n, _) -> pr ", %s_u32" n ) optargs; pr ");\n"; if may_set_error then ( pr " if (ret == %s) {\n" (match C.errcode_of_ret ret with Some s -> s | None -> assert false); pr " raise_exception ();\n"; pr " py_ret = NULL;\n"; pr " goto out;\n"; pr " }\n" ); (* Convert the result back to a Python object and return it. *) let use_ret = ref true in List.iter ( function | BytesOut (n, count) -> pr " py_ret = PyBytes_FromStringAndSize (%s, %s);\n" n count; use_ret := false | Bool _ | BytesIn _ | BytesPersistIn _ | BytesPersistOut _ | Closure _ | Enum _ | Flags _ | Fd _ | Int _ | Int64 _ | Path _ | SockAddrAndLen _ | String _ | StringList _ | UInt _ | UInt32 _ | UInt64 _ -> () ) args; if !use_ret then ( match ret with | RBool -> pr " py_ret = ret ? Py_True : Py_False;\n"; pr " Py_INCREF (py_ret);\n" | RStaticString -> pr " py_ret = PyUnicode_FromString (ret);\n" | RErr -> pr " py_ret = Py_None;\n"; pr " Py_INCREF (py_ret);\n" | RFd | RInt | RUInt -> pr " py_ret = PyLong_FromLong (ret);\n" | RInt64 | RCookie -> pr " py_ret = PyLong_FromLongLong (ret);\n" | RString -> pr " py_ret = PyUnicode_FromString (ret);\n"; pr " free (ret);\n" ); pr "\n"; if may_set_error then pr " out:\n"; List.iter ( function | Bool _ -> () | BytesIn (n, _) -> pr " PyBuffer_Release (&%s);\n" n | BytesPersistIn _ | BytesOut _ | BytesPersistOut _ -> () | Closure _ -> () | Enum _ -> () | Flags _ -> () | Fd _ | Int _ -> () | Int64 _ -> () | Path n -> pr " Py_XDECREF (py_%s);\n" n | SockAddrAndLen _ -> () | String n -> () | StringList n -> pr " nbd_internal_py_free_string_list (%s);\n" n | UInt _ -> () | UInt32 _ -> () | UInt64 _ -> () ) args; pr " return py_ret;\n"; pr "}\n"; pr "\n" let generate_python_methods_c () = generate_header CStyle; pr "#define PY_SSIZE_T_CLEAN 1\n"; pr "#include <Python.h>\n"; pr "\n"; pr "#include <stdio.h>\n"; pr "#include <stdlib.h>\n"; pr "#include <stdint.h>\n"; pr "#include <stdbool.h>\n"; pr "\n"; pr "#include <libnbd.h>\n"; pr "\n"; pr "#include <methods.h>\n"; pr "\n"; pr "/* This is passed to *_wrapper as the user_data pointer\n"; pr " * and freed in the free_user_data function below.\n"; pr " */\n"; pr "struct user_data {\n"; pr " PyObject *fn; /* Optional pointer to Python function. */\n"; pr " PyObject *buf; /* Optional pointer to persistent buffer. */\n"; pr "};\n"; pr "\n"; pr "static struct user_data *\n"; pr "alloc_user_data (void)\n"; pr "{\n"; pr " struct user_data *data = calloc (1, sizeof *data);\n"; pr " if (data == NULL) {\n"; pr " PyErr_NoMemory ();\n"; pr " return NULL;\n"; pr " }\n"; pr " return data;\n"; pr "}\n"; pr "\n"; pr "static void\n"; pr "free_user_data (void *user_data)\n"; pr "{\n"; pr " struct user_data *data = user_data;\n"; pr "\n"; pr " if (data->fn != NULL)\n"; pr " Py_DECREF (data->fn);\n"; pr " if (data->buf != NULL)\n"; pr " Py_DECREF (data->buf);\n"; pr " free (data);\n"; pr "}\n"; pr "\n"; List.iter print_python_closure_wrapper all_closures; List.iter ( fun (name, fn) -> print_python_binding name fn ) handle_calls let py_fn_rex = Str.regexp "L<nbd_\\([a-z0-9_]+\\)(3)>" let py_const_rex = Str.regexp "C<LIBNBD_" let generate_python_nbd_py () = generate_header HashStyle; pr "\ ''' Python bindings for libnbd import nbd h = nbd.NBD () h.connect_tcp (\"localhost\", \"nbd\") buf = h.pread (512, 0) Read the libnbd(3) man page to find out how to use the API. ''' import libnbdmod # Re-export Error exception as nbd.Error, adding some methods. from libnbdmod import Error Error.__doc__ = ''' Exception thrown when the underlying libnbd call fails. This exception has three properties to query the error. Use the .string property to return a printable string containing the error message. Use the .errnum property for the associated numeric error value (which may be 0 if the error did not correspond to a system call failure), or the .errno property to return a string containing the Python errno name if one is known (which may be None if the numeric value does not correspond to a known errno name). ''' Error.string = property (lambda self: self.args[0]) def _errno (self): import errno try: return errno.errorcode[self.args[1]] except KeyError: return None Error.errno = property (_errno) Error.errnum = property (lambda self: self.args[1]) def _str (self): if self.errno: return (\"%%s (%%s)\" %% (self.string, self.errno)) else: return (\"%%s\" %% self.string) Error.__str__ = _str "; List.iter ( fun { enum_prefix; enums } -> List.iter ( fun (enum, i) -> let enum = sprintf "%s_%s" enum_prefix enum in pr "%-30s = %d\n" enum i ) enums; pr "\n" ) all_enums; List.iter ( fun { flag_prefix; flags } -> List.iter ( fun (flag, i) -> let flag = sprintf "%s_%s" flag_prefix flag in pr "%-30s = %d\n" flag i ) flags; pr "\n" ) all_flags; List.iter (fun (n, i) -> pr "%-30s = %d\n" n i) constants; List.iter ( fun (ns, ctxts) -> let ns_upper = String.uppercase_ascii ns in pr "NAMESPACE_%-20s = \"%s:\"\n" ns_upper ns; List.iter ( fun (ctxt, consts) -> let ctxt_upper = String.uppercase_ascii ctxt in pr "%-30s = \"%s:%s\"\n" (sprintf "CONTEXT_%s_%s" ns_upper ctxt_upper) ns ctxt; List.iter (fun (n, i) -> pr "%-30s = %d\n" n i) consts ) ctxts; ) metadata_namespaces; pr "\ class Buffer (object): '''Asynchronous I/O persistent buffer''' def __init__ (self, len): '''allocate an uninitialized AIO buffer used for nbd.aio_pread''' self._o = libnbdmod.alloc_aio_buffer (len) @classmethod def from_bytearray (cls, ba): '''create an AIO buffer from a bytearray''' o = libnbdmod.aio_buffer_from_bytearray (ba) self = cls (0) self._o = o return self def to_bytearray (self): '''copy an AIO buffer into a bytearray''' return libnbdmod.aio_buffer_to_bytearray (self._o) def size (self): '''return the size of an AIO buffer''' return libnbdmod.aio_buffer_size (self._o) class NBD (object): '''NBD handle''' def __init__ (self): '''create a new NBD handle''' self._o = libnbdmod.create () def __del__ (self): '''close the NBD handle and underlying connection''' libnbdmod.close (self._o) "; List.iter ( fun (name, { args; optargs; shortdesc; longdesc }) -> let args = List.map ( function | Bool n -> n, None, None | BytesIn (n, _) -> n, None, None | BytesOut (_, count) -> count, None, None | BytesPersistIn (n, _) -> n, None, Some (sprintf "%s._o" n) | BytesPersistOut (n, _) -> n, None, Some (sprintf "%s._o" n) | Closure { cbname } -> cbname, None, None | Enum (n, _) -> n, None, None | Flags (n, _) -> n, None, None | Fd n | Int n -> n, None, None | Int64 n -> n, None, None | Path n -> n, None, None | SockAddrAndLen (n, _) -> n, None, None | String n -> n, None, None | StringList n -> n, None, None | UInt n -> n, None, None | UInt32 n -> n, None, None | UInt64 n -> n, None, None ) args in let optargs = List.map ( function | OClosure { cbname } -> cbname, Some "None", None | OFlags (n, _) -> n, Some "0", None ) optargs in let args = args @ optargs in pr " def %s (self" name; List.iter ( function | n, None, _ -> pr ", %s" n | n, Some default, _ -> pr ", %s=%s" n default ) args; pr "):\n"; let longdesc = Str.global_replace py_fn_rex "C<nbd.\\1>" longdesc in let longdesc = Str.global_replace py_const_rex "C<" longdesc in let longdesc = pod2text longdesc in pr " '''â–¶ %s\n\n%s'''\n" shortdesc (String.concat "\n" longdesc); pr " return libnbdmod.%s (self._o" name; List.iter ( function | _, _, Some getter -> pr ", %s" getter | n, _, None -> pr ", %s" n ) args; pr ")\n"; pr "\n" ) handle_calls; (* For nbdsh. *) pr "\ package_name = NBD().get_package_name() __version__ = NBD().get_version() if __name__ == \"__main__\": import nbdsh nbdsh.shell() " end (*----------------------------------------------------------------------*) (* OCaml bindings. * * Note we always pass the parameters as: optargs, handle, args. *) module OCaml : sig val generate_ocaml_nbd_mli : unit -> unit val generate_ocaml_nbd_ml : unit -> unit val generate_ocaml_nbd_c : unit -> unit end = struct (* String representation of args and return value. *) let rec ocaml_fundecl_to_string args optargs ret = let optargs = List.map ocaml_optarg_to_string optargs in let args = List.map ocaml_arg_to_string args in let ret = ocaml_ret_to_string ret in String.concat " -> " (optargs @ ["t"] @ args @ [ret]) (* String representation of a single OCaml arg. *) and ocaml_arg_to_string = function | Bool _ -> "bool" | BytesIn _ -> "bytes" | BytesPersistIn _ -> "Buffer.t" | BytesOut _ -> "bytes" | BytesPersistOut _ -> "Buffer.t" | Closure { cbargs } -> sprintf "(%s)" (ocaml_closuredecl_to_string cbargs) | Enum (_, { enum_prefix }) -> sprintf "%s.t" enum_prefix | Fd _ -> "Unix.file_descr" | Flags (_, { flag_prefix }) -> sprintf "%s.t" flag_prefix | Int _ -> "int" | Int64 _ -> "int64" | Path _ -> "string" | SockAddrAndLen _ -> "string" (* XXX not impl *) | String _ -> "string" | StringList _ -> "string list" | UInt _ -> "int" | UInt32 _ -> "int32" | UInt64 _ -> "int64" and ocaml_ret_to_string = function | RBool -> "bool" | RStaticString -> "string" | RErr -> "unit" | RFd -> "Unix.file_descr" | RInt -> "int" | RInt64 -> "int64" | RCookie -> "cookie" | RString -> "string" | RUInt -> "int" and ocaml_optarg_to_string = function | OClosure { cbname; cbargs } -> sprintf "?%s:(%s)" cbname (ocaml_closuredecl_to_string cbargs) | OFlags (n, { flag_prefix }) -> sprintf "?%s:%s.t list" n flag_prefix and ocaml_closuredecl_to_string cbargs = let cbargs = List.map ocaml_cbarg_to_string cbargs in String.concat " -> " (cbargs @ ["int"]) and ocaml_cbarg_to_string = function | CBArrayAndLen (arg, _) -> sprintf "%s array" (ocaml_arg_to_string arg) | CBBytesIn _ -> "bytes" | CBInt _ -> "int" | CBInt64 _ -> "int64" | CBMutable arg -> sprintf "%s ref" (ocaml_arg_to_string arg) | CBString _ -> "string" | CBUInt _ -> "int" | CBUInt64 _ -> "int64" let ocaml_name_of_arg = function | Bool n -> n | BytesIn (n, len) -> n | BytesOut (n, len) -> n | BytesPersistIn (n, len) -> n | BytesPersistOut (n, len) -> n | Closure { cbname } -> cbname | Enum (n, _) -> n | Fd n -> n | Flags (n, _) -> n | Int n -> n | Int64 n -> n | Path n -> n | SockAddrAndLen (n, len) -> n | String n -> n | StringList n -> n | UInt n -> n | UInt32 n -> n | UInt64 n -> n let ocaml_name_of_optarg = function | OClosure { cbname } -> cbname | OFlags (n, _) -> n let num_params args optargs = List.length optargs + 1 (* handle *) + List.length args let generate_ocaml_nbd_mli () = generate_header OCamlStyle; pr "\ (** OCaml bindings for libnbd. For full documentation see libnbd-ocaml(3) and libnbd(3). For examples written in OCaml see the libnbd source code [ocaml/examples] subdirectory. *) exception Error of string * int (** Exception thrown when an API call fails. The string is the error message, and the int is the raw errno (if available). *) exception Closed of string (** Exception thrown if you call a closed handle. *) type cookie = int64 "; List.iter ( fun { enum_prefix; enums } -> pr "module %s : sig\n" enum_prefix; pr " type t =\n"; List.iter ( fun (enum, _) -> pr " | %s\n" enum ) enums; pr "end\n"; pr "\n" ) all_enums; List.iter ( fun { flag_prefix; flags } -> pr "module %s : sig\n" flag_prefix; pr " type t =\n"; List.iter ( fun (flag, _) -> pr " | %s\n" flag ) flags; pr "end\n"; pr "\n" ) all_flags; List.iter ( fun (n, _) -> pr "val %s : int32\n" (String.lowercase_ascii n) ) constants; List.iter ( fun (ns, ctxts) -> pr "val namespace_%s : string\n" ns; List.iter ( fun (ctxt, consts) -> pr "val context_%s_%s : string\n" ns ctxt; List.iter (fun (n, _) -> pr "val %s : int32\n" (String.lowercase_ascii n) ) consts ) ctxts; ) metadata_namespaces; pr "\n"; pr "\ module Buffer : sig type t (** Persistent, mutable C-compatible malloc'd buffer, used in AIO calls. *) val alloc : int -> t (** Allocate an uninitialized buffer. The parameter is the size in bytes. *) val to_bytes : t -> bytes (** Copy buffer to an OCaml [bytes] object. *) val of_bytes : bytes -> t (** Copy an OCaml [bytes] object to a newly allocated buffer. *) val size : t -> int (** Return the size of the buffer. *) end (** Persistent buffer used in AIO calls. *) type t (** The handle. *) val create : unit -> t (** Create a new handle. *) val close : t -> unit (** Close a handle. Handles can also be closed by the garbage collector when they become unreachable. This call is used only if you want to force the handle to close now and reclaim resources immediately. *) "; List.iter ( fun (name, { args; optargs; ret; shortdesc; longdesc }) -> pr "val %s : %s\n" name (ocaml_fundecl_to_string args optargs ret); pr "(** %s\n" shortdesc; pr "\n"; pr "%s" (String.concat "\n" (pod2text longdesc)); pr "*)\n"; pr "\n"; ) handle_calls let generate_ocaml_nbd_ml () = generate_header OCamlStyle; pr "\ exception Error of string * int exception Closed of string type cookie = int64 (* Give the exceptions names so that they can be raised from the C code. *) let () = Callback.register_exception \"nbd_internal_ocaml_error\" (Error (\"\", 0)); Callback.register_exception \"nbd_internal_ocaml_closed\" (Closed \"\") "; List.iter ( fun { enum_prefix; enums } -> pr "module %s = struct\n" enum_prefix; pr " type t =\n"; List.iter ( fun (enum, _) -> pr " | %s\n" enum ) enums; pr "end\n"; pr "\n" ) all_enums; List.iter ( fun { flag_prefix; flags } -> pr "module %s = struct\n" flag_prefix; pr " type t =\n"; List.iter ( fun (flag, _) -> pr " | %s\n" flag ) flags; pr "end\n"; pr "\n" ) all_flags; List.iter ( fun (n, i) -> pr "let %s = %d_l\n" (String.lowercase_ascii n) i ) constants; List.iter ( fun (ns, ctxts) -> pr "let namespace_%s = \"%s:\"\n" ns ns; List.iter ( fun (ctxt, consts) -> pr "let context_%s_%s = \"%s:%s\"\n" ns ctxt ns ctxt; List.iter (fun (n, i) -> pr "let %s = %d_l\n" (String.lowercase_ascii n) i ) consts ) ctxts; ) metadata_namespaces; pr "\n"; pr "\ module Buffer = struct type t external alloc : int -> t = \"nbd_internal_ocaml_buffer_alloc\" external to_bytes : t -> bytes = \"nbd_internal_ocaml_buffer_to_bytes\" external of_bytes : bytes -> t = \"nbd_internal_ocaml_buffer_of_bytes\" external size : t -> int = \"nbd_internal_ocaml_buffer_size\" end type t external create : unit -> t = \"nbd_internal_ocaml_nbd_create\" external close : t -> unit = \"nbd_internal_ocaml_nbd_close\" "; List.iter ( fun (name, { args; optargs; ret }) -> pr "external %s : %s\n" name (ocaml_fundecl_to_string args optargs ret); pr " = "; (* In OCaml, argument lists longer than 5 elements require * special handling in the C bindings. *) if num_params args optargs > 5 then pr "\"nbd_internal_ocaml_nbd_%s_byte\" " name; pr "\"nbd_internal_ocaml_nbd_%s\"\n" name ) handle_calls let print_ocaml_enum_val { enum_prefix; enums } = pr "/* Convert OCaml %s.t to int. */\n" enum_prefix; pr "static int\n"; pr "%s_val (value v)\n" enum_prefix; pr "{\n"; pr " /* NB: No allocation in this function, don't need to use\n"; pr " * CAML* wrappers.\n"; pr " */\n"; pr " int i, r = 0;\n"; pr "\n"; pr " i = Int_val (Field (v, 0));\n"; pr " /* i is the index of the enum in the type\n"; pr " * (eg. i = 0 => enum = %s.%s).\n" enum_prefix (fst (List.hd enums)); pr " * Convert it to the C representation.\n"; pr " */\n"; pr " switch (i) {\n"; List.iteri ( fun i (enum, _) -> pr " case %d: r = LIBNBD_%s_%s; break;\n" i enum_prefix enum ) enums; pr " }\n"; pr "\n"; pr " return r;\n"; pr "}\n"; pr "\n" let print_ocaml_flag_val { flag_prefix; flags } = pr "/* Convert OCaml %s.t list to uint32_t bitmask. */\n" flag_prefix; pr "static uint32_t\n"; pr "%s_val (value v)\n" flag_prefix; pr "{\n"; pr " /* NB: No allocation in this function, don't need to use\n"; pr " * CAML* wrappers.\n"; pr " */\n"; pr " int i;\n"; pr " uint32_t r = 0;\n"; pr "\n"; pr " for (; v != Val_emptylist; v = Field (v, 1)) {\n"; pr " i = Int_val (Field (v, 0));\n"; pr " /* i is the index of the flag in the type\n"; pr " * (eg. i = 0 => flag = %s.%s).\n" flag_prefix (fst (List.hd flags)); pr " * Convert it to the C representation.\n"; pr " */\n"; pr " switch (i) {\n"; List.iteri ( fun i (flag, _) -> pr " case %d: r |= LIBNBD_%s_%s; break;\n" i flag_prefix flag ) flags; pr " }\n"; pr " }\n"; pr "\n"; pr " return r;\n"; pr "}\n"; pr "\n" let print_ocaml_closure_wrapper { cbname; cbargs } = let argnames = List.map ( function | CBArrayAndLen (UInt32 n, _) | CBBytesIn (n, _) | CBInt n | CBInt64 n | CBMutable (Int n) | CBString n | CBUInt n | CBUInt64 n -> n ^ "v" | CBArrayAndLen _ | CBMutable _ -> assert false ) cbargs in pr "/* Wrapper for %s callback. */\n" cbname; pr "static int\n"; pr "%s_wrapper_locked " cbname; C.print_cbarg_list ~wrap:true cbargs; pr "\n"; pr "{\n"; pr " CAMLparam0 ();\n"; assert (List.length argnames <= 5); pr " CAMLlocal%d (%s);\n" (List.length argnames) (String.concat ", " argnames); pr " CAMLlocal2 (exn, rv);\n"; pr " const struct user_data *data = user_data;\n"; pr " int r;\n"; pr " value args[%d];\n" (List.length argnames); pr "\n"; List.iter ( function | CBArrayAndLen (UInt32 n, count) -> pr " %sv = nbd_internal_ocaml_alloc_int32_array (%s, %s);\n" n n count; | CBBytesIn (n, len) -> pr " %sv = caml_alloc_initialized_string (%s, %s);\n" n len n | CBInt n | CBUInt n -> pr " %sv = Val_int (%s);\n" n n | CBInt64 n -> pr " %sv = caml_copy_int64 (%s);\n" n n | CBString n -> pr " %sv = caml_copy_string (%s);\n" n n | CBUInt64 n -> pr " %sv = caml_copy_int64 (%s);\n" n n | CBMutable (Int n) -> pr " %sv = caml_alloc_tuple (1);\n" n; pr " Store_field (%sv, 0, Val_int (*%s));\n" n n | CBArrayAndLen _ | CBMutable _ -> assert false ) cbargs; List.iteri (fun i n -> pr " args[%d] = %s;\n" i n) argnames; pr " rv = caml_callbackN_exn (data->fnv, %d, args);\n" (List.length argnames); List.iter ( function | CBArrayAndLen (UInt32 _, _) | CBBytesIn _ | CBInt _ | CBInt64 _ | CBString _ | CBUInt _ | CBUInt64 _ -> () | CBMutable (Int n) -> pr " *%s = Int_val (Field (%sv, 0));\n" n n | CBArrayAndLen _ | CBMutable _ -> assert false ) cbargs; pr " if (Is_exception_result (rv)) {\n"; pr " nbd_internal_ocaml_exception_in_wrapper (\"%s\", rv);\n" cbname; pr " CAMLreturnT (int, -1);\n"; pr " }\n"; pr "\n"; pr " r = Int_val (rv);\n"; pr " assert (r >= 0);\n"; pr " CAMLreturnT (int, r);\n"; pr "}\n"; pr "\n"; pr "static int\n"; pr "%s_wrapper " cbname; C.print_cbarg_list ~wrap:true cbargs; pr "\n"; pr "{\n"; pr " int ret = 0;\n"; pr "\n"; pr " caml_leave_blocking_section ();\n"; pr " ret = %s_wrapper_locked " cbname; C.print_cbarg_list ~wrap:true ~types:false cbargs; pr ";\n"; pr " caml_enter_blocking_section ();\n"; pr " return ret;\n"; pr "}\n"; pr "\n" let print_ocaml_binding (name, { args; optargs; ret }) = (* Get the names of all the value arguments including the handle. *) let values = List.map ocaml_name_of_optarg optargs @ ["h"] @ List.map ocaml_name_of_arg args in let values = List.map (fun v -> v ^ "v") values in (* Create the binding. *) pr "value\n"; let params = List.map (sprintf "value %s") values in let params = String.concat ", " params in pr "nbd_internal_ocaml_nbd_%s (" name; pr_wrap ',' (fun () -> pr "%s" params); pr ")\n"; pr "{\n"; (* CAMLparam<N> can only take up to 5 parameters. Further parameters * have to be passed in groups of 5 to CAMLxparam<N> calls. *) (match values with | p1 :: p2 :: p3 :: p4 :: p5 :: rest -> pr " CAMLparam5 (%s);\n" (String.concat ", " [p1; p2; p3; p4; p5]); let rec loop = function | [] -> () | p1 :: p2 :: p3 :: p4 :: p5 :: rest -> pr " CAMLxparam5 (%s);\n" (String.concat ", " [p1; p2; p3; p4; p5]); loop rest | rest -> pr " CAMLxparam%d (%s);\n" (List.length rest) (String.concat ", " rest) in loop rest | ps -> pr " CAMLparam%d (%s);\n" (List.length ps) (String.concat ", " ps) ); pr " CAMLlocal1 (rv);\n"; pr "\n"; pr " struct nbd_handle *h = NBD_val (hv);\n"; pr " if (h == NULL)\n"; pr " nbd_internal_ocaml_raise_closed (\"NBD.%s\");\n" name; pr "\n"; List.iter ( function | OClosure { cbname } -> pr " nbd_%s_callback %s_callback = {0};\n" cbname cbname; pr " struct user_data *%s_user_data = alloc_user_data ();\n" cbname; pr " if (%sv != Val_int (0)) { /* Some closure */\n" cbname; pr " /* The function may save a reference to the closure, so we\n"; pr " * must treat it as a possible GC root.\n"; pr " */\n"; pr " %s_user_data->fnv = Field (%sv, 0);\n" cbname cbname; pr " caml_register_generational_global_root (&%s_user_data->fnv);\n" cbname; pr " %s_callback.callback = %s_wrapper;\n" cbname cbname; pr " }\n"; pr " %s_callback.user_data = %s_user_data;\n" cbname cbname; pr " %s_callback.free = free_user_data;\n" cbname; | OFlags (n, { flag_prefix }) -> pr " uint32_t %s;\n" n; pr " if (%sv != Val_int (0)) /* Some [ list of %s.t ] */\n" n flag_prefix; pr " %s = %s_val (Field (%sv, 0));\n" n flag_prefix n; pr " else /* None */\n"; pr " %s = 0;\n" n ) optargs; List.iter ( function | Bool n -> pr " bool %s = Bool_val (%sv);\n" n n | BytesIn (n, count) -> pr " const void *%s = Bytes_val (%sv);\n" n n; pr " size_t %s = caml_string_length (%sv);\n" count n | BytesPersistIn (n, count) -> pr " struct nbd_buffer *%s_buf = NBD_buffer_val (%sv);\n" n n; pr " const void *%s = %s_buf->data;\n" n n; pr " size_t %s = %s_buf->len;\n" count n | BytesOut (n, count) -> pr " void *%s = Bytes_val (%sv);\n" n n; pr " size_t %s = caml_string_length (%sv);\n" count n | BytesPersistOut (n, count) -> pr " struct nbd_buffer *%s_buf = NBD_buffer_val (%sv);\n" n n; pr " void *%s = %s_buf->data;\n" n n; pr " size_t %s = %s_buf->len;\n" count n | Closure { cbname } -> pr " nbd_%s_callback %s_callback;\n" cbname cbname; pr " struct user_data *%s_user_data = alloc_user_data ();\n" cbname; pr " /* The function may save a reference to the closure, so we\n"; pr " * must treat it as a possible GC root.\n"; pr " */\n"; pr " %s_user_data->fnv = %sv;\n" cbname cbname; pr " caml_register_generational_global_root (&%s_user_data->fnv);\n" cbname; pr " %s_callback.callback = %s_wrapper;\n" cbname cbname; pr " %s_callback.user_data = %s_user_data;\n" cbname cbname; pr " %s_callback.free = free_user_data;\n" cbname | Enum (n, { enum_prefix }) -> pr " int %s = %s_val (%sv);\n" n enum_prefix n | Fd n -> pr " /* OCaml Unix.file_descr is just an int, at least on Unix. */\n"; pr " int %s = Int_val (%sv);\n" n n | Flags (n, { flag_prefix }) -> pr " uint32_t %s = %s_val (%sv);\n" n flag_prefix n | Int n -> pr " int %s = Int_val (%sv);\n" n n | Int64 n -> pr " int64_t %s = Int64_val (%sv);\n" n n | Path n | String n -> pr " const char *%s = String_val (%sv);\n" n n | SockAddrAndLen (n, len) -> pr " const struct sockaddr *%s;\n" n; pr " socklen_t %s;\n" len; pr " abort ();\n" (* XXX *) | StringList n -> pr " char **%s = (char **) nbd_internal_ocaml_string_list (%sv);\n" n n | UInt n -> pr " unsigned %s = Int_val (%sv);\n" n n | UInt32 n -> pr " uint32_t %s = Int32_val (%sv);\n" n n | UInt64 n -> pr " uint64_t %s = Int64_val (%sv);\n" n n ) args; (* If there is a BytesPersistIn/Out parameter then we need to * register it as a global root and save that into the * completion_callback.user_data so the root is removed on * command completion. *) List.iter ( function | BytesPersistIn (n, _) | BytesPersistOut (n, _) -> pr " completion_user_data->bufv = %sv;\n" n; pr " caml_register_generational_global_root (&completion_user_data->bufv);\n" | _ -> () ) args; let ret_c_type = C.type_of_ret ret and errcode = C.errcode_of_ret ret in pr " %s r;\n" ret_c_type; pr "\n"; pr " caml_enter_blocking_section ();\n"; pr " r = nbd_%s " name; C.print_arg_list ~wrap:true ~handle:true ~types:false args optargs; pr ";\n"; pr " caml_leave_blocking_section ();\n"; pr "\n"; (match errcode with | Some code -> pr " if (r == %s)\n" code; pr " nbd_internal_ocaml_raise_error ();\n"; pr "\n" | None -> () ); (match ret with | RBool -> pr " rv = Val_bool (r);\n" | RErr -> pr " rv = Val_unit;\n" | RFd | RInt | RUInt -> pr " rv = Val_int (r);\n" | RInt64 | RCookie -> pr " rv = caml_copy_int64 (r);\n" | RStaticString -> pr " rv = caml_copy_string (r);\n" | RString -> pr " rv = caml_copy_string (r);\n"; pr " free (r);\n" ); (* Any parameters which need to be freed. *) List.iter ( function | StringList n -> pr " free (%s);\n" n | Bool _ | BytesIn _ | BytesPersistIn _ | BytesOut _ | BytesPersistOut _ | Closure _ | Enum _ | Fd _ | Flags _ | Int _ | Int64 _ | Path _ | String _ | SockAddrAndLen _ | UInt _ | UInt32 _ | UInt64 _ -> () ) args; pr " CAMLreturn (rv);\n"; pr "}\n"; pr "\n"; if num_params args optargs > 5 then ( pr "/* Byte-code compat function because this method has > 5 parameters.\n"; pr " */\n"; pr "value\n"; pr "nbd_internal_ocaml_nbd_%s_byte (value *argv, int argn)\n" name; pr "{\n"; pr " return nbd_internal_ocaml_nbd_%s (" name; for i = 0 to num_params args optargs - 1 do if i > 0 then pr ", "; pr "argv[%d]" i done; pr ");\n"; pr "}\n"; pr "\n" ) let generate_ocaml_nbd_c () = generate_header CStyle; pr "#include <config.h>\n"; pr "\n"; pr "#include <stdio.h>\n"; pr "#include <stdlib.h>\n"; pr "#include <string.h>\n"; pr "#include <assert.h>\n"; pr "\n"; pr "#include <libnbd.h>\n"; pr "\n"; pr "#include \"nbd-c.h\"\n"; pr "\n"; pr "#include <caml/alloc.h>\n"; pr "#include <caml/callback.h>\n"; pr "#include <caml/fail.h>\n"; pr "#include <caml/memory.h>\n"; pr "#include <caml/mlvalues.h>\n"; pr "#include <caml/threads.h>\n"; pr "\n"; pr "#pragma GCC diagnostic ignored \"-Wmissing-prototypes\"\n"; pr "\n"; pr "/* This is passed to *_wrapper as the user_data pointer\n"; pr " * and freed in the free_user_data function below.\n"; pr " */\n"; pr "struct user_data {\n"; pr " value fnv; /* Optional GC root pointing to OCaml function. */\n"; pr " value bufv; /* Optional GC root pointing to persistent buffer. */\n"; pr "};\n"; pr "\n"; pr "static struct user_data *\n"; pr "alloc_user_data (void)\n"; pr "{\n"; pr " struct user_data *data = calloc (1, sizeof *data);\n"; pr " if (data == NULL)\n"; pr " caml_raise_out_of_memory ();\n"; pr " return data;\n"; pr "}\n"; pr "\n"; pr "static void\n"; pr "free_user_data (void *user_data)\n"; pr "{\n"; pr " struct user_data *data = user_data;\n"; pr "\n"; pr " if (data->fnv != 0)\n"; pr " caml_remove_generational_global_root (&data->fnv);\n"; pr " if (data->bufv != 0)\n"; pr " caml_remove_generational_global_root (&data->bufv);\n"; pr " free (data);\n"; pr "}\n"; pr "\n"; List.iter print_ocaml_closure_wrapper all_closures; List.iter print_ocaml_enum_val all_enums; List.iter print_ocaml_flag_val all_flags; List.iter print_ocaml_binding handle_calls end (*----------------------------------------------------------------------*) (* Write the output files. *) let () = output_to "lib/states.h" StateMachine.generate_lib_states_h; output_to "lib/states.c" StateMachine.generate_lib_states_c; output_to "lib/states-run.c" StateMachine.generate_lib_states_run_c; output_to "lib/libnbd.syms" C.generate_lib_libnbd_syms; output_to "include/libnbd.h" C.generate_include_libnbd_h; output_to "lib/unlocked.h" C.generate_lib_unlocked_h; output_to "lib/api.c" C.generate_lib_api_c; output_to "docs/Makefile.inc" C.generate_docs_Makefile_inc; output_to "docs/api-links.pod" C.generate_docs_api_links_pod; output_to "docs/api-flag-links.pod" C.generate_docs_api_flag_links_pod; List.iter ( fun (name, call) -> output_to (sprintf "docs/nbd_%s.pod" name) (C.generate_docs_nbd_pod name call) ) handle_calls; output_to "python/methods.h" Python.generate_python_methods_h; output_to "python/libnbdmod.c" Python.generate_python_libnbdmod_c; output_to "python/methods.c" Python.generate_python_methods_c; output_to "python/nbd.py" Python.generate_python_nbd_py; output_to "ocaml/NBD.mli" OCaml.generate_ocaml_nbd_mli; output_to "ocaml/NBD.ml" OCaml.generate_ocaml_nbd_ml; output_to "ocaml/nbd-c.c" OCaml.generate_ocaml_nbd_c; ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states.c���������������������������������������������������������������������0000664�0001750�0001750�00000011404�13546661321�013335� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* This isn't "real" C code. It is read by the generator, parsed, and * put into generated files. Also it won't make much sense unless you * read the generator state machine and documentation in * generator/generator first. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <stdbool.h> #include <string.h> #include <unistd.h> #include <assert.h> #include "internal.h" /* Uncomment this to dump received protocol packets to stderr. */ /*#define DUMP_PACKETS 1*/ static int recv_into_rbuf (struct nbd_handle *h) { ssize_t r; char buf[BUFSIZ]; void *rbuf; size_t rlen; if (h->rlen == 0) return 0; /* move to next state */ /* As a special case h->rbuf is allowed to be NULL, meaning * throw away the data. */ if (h->rbuf) { rbuf = h->rbuf; rlen = h->rlen; } else { rbuf = &buf; rlen = h->rlen > sizeof buf ? sizeof buf : h->rlen; } r = h->sock->ops->recv (h, h->sock, rbuf, rlen); if (r == -1) { if (errno == EAGAIN || errno == EWOULDBLOCK) return 1; /* more data */ /* sock->ops->recv called set_error already. */ return -1; } if (r == 0) { set_error (0, "recv: server disconnected unexpectedly"); return -1; } #ifdef DUMP_PACKETS if (h->rbuf != NULL) nbd_internal_hexdump (h->rbuf, r, stderr); #endif if (h->rbuf) h->rbuf += r; h->rlen -= r; if (h->rlen == 0) return 0; /* move to next state */ else return 1; /* more data */ } static int send_from_wbuf (struct nbd_handle *h) { ssize_t r; if (h->wlen == 0) goto next_state; r = h->sock->ops->send (h, h->sock, h->wbuf, h->wlen, h->wflags); if (r == -1) { if (errno == EAGAIN || errno == EWOULDBLOCK) return 1; /* more data */ /* sock->ops->send called set_error already. */ return -1; } h->wbuf += r; h->wlen -= r; if (h->wlen == 0) goto next_state; else return 1; /* more data */ next_state: h->wflags = 0; /* reset this when moving to next state */ return 0; /* move to next state */ } /* Forcefully fail any remaining in-flight commands in list */ void abort_commands (struct nbd_handle *h, struct command **list) { struct command *next, *cmd; for (cmd = *list, *list = NULL; cmd != NULL; cmd = next) { bool retire = cmd->type == NBD_CMD_DISC; next = cmd->next; if (CALLBACK_IS_NOT_NULL (cmd->cb.completion)) { int error = cmd->error ? cmd->error : ENOTCONN; int r; assert (cmd->type != NBD_CMD_DISC); r = CALL_CALLBACK (cmd->cb.completion, &error); switch (r) { case -1: if (error) cmd->error = error; break; case 1: retire = true; break; } } if (cmd->error == 0) cmd->error = ENOTCONN; if (retire) nbd_internal_retire_and_free_command (cmd); else { cmd->next = NULL; if (h->cmds_done_tail) h->cmds_done_tail->next = cmd; else { assert (h->cmds_done == NULL); h->cmds_done = cmd; } h->cmds_done_tail = cmd; } } } STATE_MACHINE { READY: if (h->cmds_to_issue) SET_NEXT_STATE (%ISSUE_COMMAND.START); else { assert (h->sock); if (h->sock->ops->pending && h->sock->ops->pending (h->sock)) SET_NEXT_STATE (%REPLY.START); } return 0; DEAD: /* The caller should have used set_error() before reaching here */ assert (nbd_get_error ()); abort_commands (h, &h->cmds_to_issue); abort_commands (h, &h->cmds_in_flight); h->in_flight = 0; if (h->sock) { h->sock->ops->close (h->sock); h->sock = NULL; } return -1; CLOSED: abort_commands (h, &h->cmds_to_issue); abort_commands (h, &h->cmds_in_flight); h->in_flight = 0; if (h->sock) { h->sock->ops->close (h->sock); h->sock = NULL; } return 0; } /* END STATE MACHINE */ ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-connect.c�������������������������������������������������������������0000664�0001750�0001750�00000014717�13552713634�015000� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machines related to connecting to the server. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <stdbool.h> #include <string.h> #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <signal.h> #include <netdb.h> #include <netinet/in.h> #include <netinet/tcp.h> #include <sys/types.h> #include <sys/socket.h> /* Disable Nagle's algorithm on the socket, but don't fail. */ static void disable_nagle (int sock) { const int flag = 1; setsockopt (sock, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof flag); } STATE_MACHINE { CONNECT.START: int fd; assert (!h->sock); fd = socket (h->connaddr.ss_family, SOCK_STREAM|SOCK_NONBLOCK|SOCK_CLOEXEC, 0); if (fd == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "socket"); return 0; } h->sock = nbd_internal_socket_create (fd); if (!h->sock) { SET_NEXT_STATE (%.DEAD); return 0; } disable_nagle (fd); if (connect (fd, (struct sockaddr *) &h->connaddr, h->connaddrlen) == -1) { if (errno != EINPROGRESS) { SET_NEXT_STATE (%.DEAD); set_error (errno, "connect"); return 0; } } return 0; CONNECT.CONNECTING: int status; socklen_t len = sizeof status; if (getsockopt (h->sock->ops->get_fd (h->sock), SOL_SOCKET, SO_ERROR, &status, &len) == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "getsockopt: SO_ERROR"); return 0; } /* This checks the status of the original connect call. */ if (status == 0) { SET_NEXT_STATE (%^MAGIC.START); return 0; } else { SET_NEXT_STATE (%.DEAD); set_error (status, "connect"); return 0; } CONNECT_TCP.START: int r; assert (h->hostname != NULL); assert (h->port != NULL); if (h->result) { freeaddrinfo (h->result); h->result = NULL; } h->connect_errno = 0; memset (&h->hints, 0, sizeof h->hints); h->hints.ai_family = AF_UNSPEC; h->hints.ai_socktype = SOCK_STREAM; h->hints.ai_flags = 0; h->hints.ai_protocol = 0; /* XXX Unfortunately getaddrinfo blocks. getaddrinfo_a isn't * portable and in any case isn't an alternative because it can't be * integrated into a main loop. */ r = getaddrinfo (h->hostname, h->port, &h->hints, &h->result); if (r != 0) { SET_NEXT_STATE (%^START); set_error (0, "getaddrinfo: %s:%s: %s", h->hostname, h->port, gai_strerror (r)); return -1; } h->rp = h->result; SET_NEXT_STATE (%CONNECT); return 0; CONNECT_TCP.CONNECT: int fd; assert (!h->sock); if (h->rp == NULL) { /* We tried all the results from getaddrinfo without success. * Save errno from most recent connect(2) call. XXX */ SET_NEXT_STATE (%^START); set_error (h->connect_errno, "connect: %s:%s: could not connect to remote host", h->hostname, h->port); return -1; } fd = socket (h->rp->ai_family, h->rp->ai_socktype|SOCK_NONBLOCK|SOCK_CLOEXEC, h->rp->ai_protocol); if (fd == -1) { SET_NEXT_STATE (%NEXT_ADDRESS); return 0; } h->sock = nbd_internal_socket_create (fd); if (!h->sock) { SET_NEXT_STATE (%.DEAD); return 0; } disable_nagle (fd); if (connect (fd, h->rp->ai_addr, h->rp->ai_addrlen) == -1) { if (errno != EINPROGRESS) { if (h->connect_errno == 0) h->connect_errno = errno; SET_NEXT_STATE (%NEXT_ADDRESS); return 0; } } SET_NEXT_STATE (%CONNECTING); return 0; CONNECT_TCP.CONNECTING: int status; socklen_t len = sizeof status; if (getsockopt (h->sock->ops->get_fd (h->sock), SOL_SOCKET, SO_ERROR, &status, &len) == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "getsockopt: SO_ERROR"); return 0; } /* This checks the status of the original connect call. */ if (status == 0) SET_NEXT_STATE (%^MAGIC.START); else { if (h->connect_errno == 0) h->connect_errno = status; SET_NEXT_STATE (%NEXT_ADDRESS); } return 0; CONNECT_TCP.NEXT_ADDRESS: if (h->sock) { h->sock->ops->close (h->sock); h->sock = NULL; } if (h->rp) h->rp = h->rp->ai_next; SET_NEXT_STATE (%CONNECT); return 0; CONNECT_COMMAND.START: int sv[2]; pid_t pid; int flags; assert (!h->sock); assert (h->argv); assert (h->argv[0]); if (socketpair (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, sv) == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "socketpair"); return 0; } pid = fork (); if (pid == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "fork"); close (sv[0]); close (sv[1]); return 0; } if (pid == 0) { /* child - run command */ close (0); close (1); close (sv[0]); dup2 (sv[1], 0); dup2 (sv[1], 1); close (sv[1]); /* Restore SIGPIPE back to SIG_DFL. */ signal (SIGPIPE, SIG_DFL); execvp (h->argv[0], h->argv); nbd_internal_fork_safe_perror (h->argv[0]); if (errno == ENOENT) _exit (127); else _exit (126); } /* Parent. */ close (sv[1]); h->pid = pid; /* The socket must be set to non-blocking only in the parent, * because the child may not be expecting a non-blocking socket. */ flags = fcntl (sv[0], F_GETFL, 0); if (flags == -1 || fcntl (sv[0], F_SETFL, flags|O_NONBLOCK) == -1) { SET_NEXT_STATE (%.DEAD); close (sv[0]); return 0; } h->sock = nbd_internal_socket_create (sv[0]); if (!h->sock) { SET_NEXT_STATE (%.DEAD); close (sv[0]); return 0; } /* The sockets are connected already, we can jump directly to * receiving the server magic. */ SET_NEXT_STATE (%^MAGIC.START); return 0; } /* END STATE MACHINE */ �������������������������������������������������libnbd-1.2.2/generator/states-connect-socket-activation.c�������������������������������������������0000664�0001750�0001750�00000013474�13571455312�020421� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine related to connecting with systemd socket activation. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <unistd.h> #include <sys/socket.h> #include <sys/un.h> #include "internal.h" /* This is baked into the systemd socket activation API. */ #define FIRST_SOCKET_ACTIVATION_FD 3 /* == strlen ("LISTEN_PID=") | strlen ("LISTEN_FDS=") */ #define PREFIX_LENGTH 11 extern char **environ; /* Prepare environment for calling execvp when doing systemd socket * activation. Takes the current environment and copies it. Removes * any existing LISTEN_PID or LISTEN_FDS and replaces them with new * variables. env[0] is "LISTEN_PID=..." which is filled in by * CONNECT_SA.START, and env[1] is "LISTEN_FDS=1". */ static char ** prepare_socket_activation_environment (void) { char **env = NULL; char *p0 = NULL, *p1 = NULL; size_t i, len; void *vp; p0 = strdup ("LISTEN_PID=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"); if (p0 == NULL) goto err; p1 = strdup ("LISTEN_FDS=1"); if (p1 == NULL) goto err; /* Copy the current environment. */ env = nbd_internal_copy_string_list (environ); if (env == NULL) goto err; /* Reserve slots env[0] and env[1]. */ len = nbd_internal_string_list_length (env); vp = realloc (env, sizeof (char *) * (len + 3)); /* include final NULL entry */ if (vp == NULL) goto err; env = vp; memmove (&env[2], &env[0], sizeof (char *) * (len + 1)); env[0] = p0; /* Code below assumes env[0] is LISTEN_PID. */ env[1] = p1; /* Remove any existing LISTEN_PID or LISTEN_FDS instances. */ for (i = 2; env[i] != NULL; ++i) { if (strncmp (env[i], "LISTEN_PID=", PREFIX_LENGTH) == 0 || strncmp (env[i], "LISTEN_FDS=", PREFIX_LENGTH) == 0) { memmove (&env[i], &env[i+1], sizeof (char *) * (nbd_internal_string_list_length (&env[i]))); i--; } } return env; err: set_error (errno, "malloc"); nbd_internal_free_string_list (env); free (p0); free (p1); return NULL; } STATE_MACHINE { CONNECT_SA.START: int s; struct sockaddr_un addr; char **env; pid_t pid; int flags; assert (!h->sock); assert (h->argv); assert (h->argv[0]); /* Use /tmp instead of TMPDIR because we must ensure the path is * short enough to store in the sockaddr_un. On some platforms this * may cause problems so we may need to revisit it. XXX */ h->sa_tmpdir = strdup ("/tmp/libnbdXXXXXX"); if (h->sa_tmpdir == NULL) { SET_NEXT_STATE (%.DEAD); set_error (errno, "strdup"); return 0; } if (mkdtemp (h->sa_tmpdir) == NULL) { SET_NEXT_STATE (%.DEAD); set_error (errno, "mkdtemp"); /* Avoid cleanup in nbd_close. */ free (h->sa_tmpdir); h->sa_tmpdir = NULL; return 0; } if (asprintf (&h->sa_sockpath, "%s/sock", h->sa_tmpdir) == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "strdup"); return 0; } s = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); if (s == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "socket"); return 0; } addr.sun_family = AF_UNIX; memcpy (addr.sun_path, h->sa_sockpath, strlen (h->sa_sockpath) + 1); if (bind (s, (struct sockaddr *) &addr, sizeof addr) == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "bind: %s", h->sa_sockpath); close (s); return 0; } if (listen (s, 1) == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "listen"); close (s); return 0; } env = prepare_socket_activation_environment (); if (!env) { SET_NEXT_STATE (%.DEAD); close (s); return 0; } pid = fork (); if (pid == -1) { SET_NEXT_STATE (%.DEAD); set_error (errno, "fork"); close (s); nbd_internal_free_string_list (env); return 0; } if (pid == 0) { /* child - run command */ if (s != FIRST_SOCKET_ACTIVATION_FD) { dup2 (s, FIRST_SOCKET_ACTIVATION_FD); close (s); } else { /* We must unset CLOEXEC on the fd. (dup2 above does this * implicitly because CLOEXEC is set on the fd, not on the * socket). */ flags = fcntl (s, F_GETFD, 0); if (flags == -1) { nbd_internal_fork_safe_perror ("fcntl: F_GETFD"); _exit (126); } if (fcntl (s, F_SETFD, flags & ~FD_CLOEXEC) == -1) { nbd_internal_fork_safe_perror ("fcntl: F_SETFD"); _exit (126); } } char buf[32]; const char *v = nbd_internal_fork_safe_itoa ((long) getpid (), buf, sizeof buf); strcpy (&env[0][PREFIX_LENGTH], v); /* Restore SIGPIPE back to SIG_DFL. */ signal (SIGPIPE, SIG_DFL); environ = env; execvp (h->argv[0], h->argv); nbd_internal_fork_safe_perror (h->argv[0]); if (errno == ENOENT) _exit (127); else _exit (126); } /* Parent. */ close (s); nbd_internal_free_string_list (env); h->pid = pid; h->connaddrlen = sizeof addr; memcpy (&h->connaddr, &addr, h->connaddrlen); SET_NEXT_STATE (%^CONNECT.START); return 0; } /* END STATE MACHINE */ ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-issue-command.c�������������������������������������������������������0000664�0001750�0001750�00000006726�13546661321�016112� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for issuing commands (requests) to the server. */ STATE_MACHINE { ISSUE_COMMAND.START: struct command *cmd; assert (h->cmds_to_issue != NULL); cmd = h->cmds_to_issue; /* Were we interrupted by reading a reply to an earlier command? If * so, we can only get back here after a non-blocking jaunt through * the REPLY engine, which means we are unlikely to be unblocked for * writes yet; we want to advance back to the correct state but * without trying a send_from_wbuf that will likely return 1. */ if (h->wlen) { if (h->in_write_payload) SET_NEXT_STATE_AND_BLOCK (%SEND_WRITE_PAYLOAD); else SET_NEXT_STATE_AND_BLOCK (%SEND_REQUEST); return 0; } h->request.magic = htobe32 (NBD_REQUEST_MAGIC); h->request.flags = htobe16 (cmd->flags); h->request.type = htobe16 (cmd->type); h->request.handle = htobe64 (cmd->cookie); h->request.offset = htobe64 (cmd->offset); h->request.count = htobe32 ((uint32_t) cmd->count); h->wbuf = &h->request; h->wlen = sizeof (h->request); if (cmd->type == NBD_CMD_WRITE || cmd->next) h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND_REQUEST); return 0; ISSUE_COMMAND.SEND_REQUEST: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%PREPARE_WRITE_PAYLOAD); } return 0; ISSUE_COMMAND.PAUSE_SEND_REQUEST: assert (h->wlen); assert (h->cmds_to_issue != NULL); h->in_write_payload = false; SET_NEXT_STATE (%^REPLY.START); return 0; ISSUE_COMMAND.PREPARE_WRITE_PAYLOAD: struct command *cmd; assert (h->cmds_to_issue != NULL); cmd = h->cmds_to_issue; assert (cmd->cookie == be64toh (h->request.handle)); if (cmd->type == NBD_CMD_WRITE) { h->wbuf = cmd->data; h->wlen = cmd->count; if (cmd->next && cmd->count < 64 * 1024) h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND_WRITE_PAYLOAD); } else SET_NEXT_STATE (%FINISH); return 0; ISSUE_COMMAND.SEND_WRITE_PAYLOAD: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%FINISH); } return 0; ISSUE_COMMAND.PAUSE_WRITE_PAYLOAD: assert (h->wlen); assert (h->cmds_to_issue != NULL); h->in_write_payload = true; SET_NEXT_STATE (%^REPLY.START); return 0; ISSUE_COMMAND.FINISH: struct command *cmd; assert (!h->wlen); assert (h->cmds_to_issue != NULL); cmd = h->cmds_to_issue; assert (cmd->cookie == be64toh (h->request.handle)); h->cmds_to_issue = cmd->next; if (h->cmds_to_issue_tail == cmd) h->cmds_to_issue_tail = NULL; cmd->next = h->cmds_in_flight; h->cmds_in_flight = cmd; SET_NEXT_STATE (%.READY); return 0; } /* END STATE MACHINE */ ������������������������������������������libnbd-1.2.2/generator/states-magic.c���������������������������������������������������������������0000664�0001750�0001750�00000003405�13546661321�014415� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for parsing the initial magic number from the server. */ STATE_MACHINE { MAGIC.START: h->rbuf = &h->sbuf; h->rlen = 16; SET_NEXT_STATE (%RECV_MAGIC); return 0; MAGIC.RECV_MAGIC: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%CHECK_MAGIC); } return 0; MAGIC.CHECK_MAGIC: uint64_t version; if (be64toh (h->sbuf.new_handshake.nbdmagic) != NBD_MAGIC) { SET_NEXT_STATE (%.DEAD); set_error (0, "handshake: server did not send expected NBD magic"); return 0; } version = be64toh (h->sbuf.new_handshake.version); if (version == NBD_NEW_VERSION) SET_NEXT_STATE (%.NEWSTYLE.START); else if (version == NBD_OLD_VERSION) SET_NEXT_STATE (%.OLDSTYLE.START); else { SET_NEXT_STATE (%.DEAD); set_error (0, "handshake: server is not either an oldstyle or fixed newstyle NBD server"); return 0; } return 0; } /* END STATE MACHINE */ �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-newstyle-opt-export-name.c��������������������������������������������0000664�0001750�0001750�00000004557�13546661321�020255� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for ending newstyle handshake with NBD_OPT_EXPORT_NAME. */ STATE_MACHINE { NEWSTYLE.OPT_EXPORT_NAME.START: h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_EXPORT_NAME); h->sbuf.option.optlen = strlen (h->export_name); h->wbuf = &h->sbuf; h->wlen = sizeof h->sbuf.option; h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND); return 0; NEWSTYLE.OPT_EXPORT_NAME.SEND: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->wbuf = h->export_name; h->wlen = strlen (h->export_name); SET_NEXT_STATE (%SEND_EXPORT); } return 0; NEWSTYLE.OPT_EXPORT_NAME.SEND_EXPORT: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.export_name_reply; if ((h->gflags & LIBNBD_HANDSHAKE_FLAG_NO_ZEROES) != 0) h->rlen -= sizeof h->sbuf.export_name_reply.zeroes; SET_NEXT_STATE (%RECV_REPLY); } return 0; NEWSTYLE.OPT_EXPORT_NAME.RECV_REPLY: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%CHECK_REPLY); } return 0; NEWSTYLE.OPT_EXPORT_NAME.CHECK_REPLY: uint64_t exportsize; uint16_t eflags; exportsize = be64toh (h->sbuf.export_name_reply.exportsize); eflags = be16toh (h->sbuf.export_name_reply.eflags); if (nbd_internal_set_size_and_flags (h, exportsize, eflags) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } SET_NEXT_STATE (%^FINISHED); return 0; } /* END STATE MACHINE */ �������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-newstyle-opt-go.c�����������������������������������������������������0000664�0001750�0001750�00000013210�13546661321�016405� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for ending fixed newstyle handshake with NBD_OPT_GO. */ STATE_MACHINE { NEWSTYLE.OPT_GO.START: h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_GO); h->sbuf.option.optlen = htobe32 (/* exportnamelen */ 4 + strlen (h->export_name) + /* nrinfos */ 2); h->wbuf = &h->sbuf; h->wlen = sizeof h->sbuf.option; h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND); return 0; NEWSTYLE.OPT_GO.SEND: const uint32_t exportnamelen = strlen (h->export_name); switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->sbuf.len = htobe32 (exportnamelen); h->wbuf = &h->sbuf; h->wlen = 4; h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND_EXPORTNAMELEN); } return 0; NEWSTYLE.OPT_GO.SEND_EXPORTNAMELEN: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->wbuf = h->export_name; h->wlen = strlen (h->export_name); h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND_EXPORT); } return 0; NEWSTYLE.OPT_GO.SEND_EXPORT: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->sbuf.nrinfos = 0; h->wbuf = &h->sbuf; h->wlen = 2; SET_NEXT_STATE (%SEND_NRINFOS); } return 0; NEWSTYLE.OPT_GO.SEND_NRINFOS: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.or.option_reply; SET_NEXT_STATE (%RECV_REPLY); } return 0; NEWSTYLE.OPT_GO.RECV_REPLY: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: if (prepare_for_reply_payload (h, NBD_OPT_GO) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } SET_NEXT_STATE (%RECV_REPLY_PAYLOAD); } return 0; NEWSTYLE.OPT_GO.RECV_REPLY_PAYLOAD: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%CHECK_REPLY); } return 0; NEWSTYLE.OPT_GO.CHECK_REPLY: uint32_t reply; uint32_t len; const size_t maxpayload = sizeof h->sbuf.or.payload; uint16_t info; uint64_t exportsize; uint16_t eflags; reply = be32toh (h->sbuf.or.option_reply.reply); len = be32toh (h->sbuf.or.option_reply.replylen); switch (reply) { case NBD_REP_ACK: SET_NEXT_STATE (%^FINISHED); return 0; case NBD_REP_INFO: if (len > maxpayload /* see RECV_NEWSTYLE_OPT_GO_REPLY */) debug (h, "skipping large NBD_REP_INFO"); else { assert (len >= sizeof h->sbuf.or.payload.export.info); info = be16toh (h->sbuf.or.payload.export.info); switch (info) { case NBD_INFO_EXPORT: if (len != sizeof h->sbuf.or.payload.export) { SET_NEXT_STATE (%.DEAD); set_error (0, "handshake: incorrect NBD_INFO_EXPORT option reply length"); return 0; } exportsize = be64toh (h->sbuf.or.payload.export.exportsize); eflags = be16toh (h->sbuf.or.payload.export.eflags); if (nbd_internal_set_size_and_flags (h, exportsize, eflags) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } break; default: /* XXX Handle other info types, like NBD_INFO_BLOCK_SIZE */ debug (h, "skipping unknown NBD_REP_INFO type %d", be16toh (h->sbuf.or.payload.export.info)); break; } } /* Server is allowed to send any number of NBD_REP_INFO, read next one. */ h->rbuf = &h->sbuf; h->rlen = sizeof (h->sbuf.or.option_reply); SET_NEXT_STATE (%RECV_REPLY); return 0; case NBD_REP_ERR_UNSUP: debug (h, "server is confused by NBD_OPT_GO, continuing anyway"); SET_NEXT_STATE (%^OPT_EXPORT_NAME.START); return 0; default: if (handle_reply_error (h) == 0) { /* Decode expected known errors into a nicer string */ switch (reply) { case NBD_REP_ERR_POLICY: case NBD_REP_ERR_PLATFORM: set_error (0, "handshake: server policy prevents NBD_OPT_GO"); break; case NBD_REP_ERR_INVALID: case NBD_REP_ERR_TOO_BIG: set_error (EINVAL, "handshake: server rejected NBD_OPT_GO as invalid"); break; case NBD_REP_ERR_TLS_REQD: set_error (ENOTSUP, "handshake: server requires TLS encryption first"); break; case NBD_REP_ERR_UNKNOWN: set_error (ENOENT, "handshake: server has no export named '%s'", h->export_name); break; case NBD_REP_ERR_SHUTDOWN: set_error (ESHUTDOWN, "handshake: server is shutting down"); break; case NBD_REP_ERR_BLOCK_SIZE_REQD: set_error (EINVAL, "handshake: server requires specific block sizes"); break; default: set_error (0, "handshake: unknown reply from NBD_OPT_GO: 0x%" PRIx32, reply); } } SET_NEXT_STATE (%.DEAD); return 0; } } /* END STATE MACHINE */ ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-newstyle-opt-set-meta-context.c���������������������������������������0000664�0001750�0001750�00000015030�13546661321�021203� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for negotiating NBD_OPT_SET_META_CONTEXT. */ STATE_MACHINE { NEWSTYLE.OPT_SET_META_CONTEXT.START: size_t i, nr_queries; uint32_t len; /* If the server doesn't support SRs then we must skip this group. * Also we skip the group if the client didn't request any metadata * contexts. */ if (!h->structured_replies || h->request_meta_contexts == NULL || nbd_internal_string_list_length (h->request_meta_contexts) == 0) { SET_NEXT_STATE (%^OPT_GO.START); return 0; } assert (h->meta_contexts == NULL); /* Calculate the length of the option request data. */ len = 4 /* exportname len */ + strlen (h->export_name) + 4 /* nr queries */; nr_queries = nbd_internal_string_list_length (h->request_meta_contexts); for (i = 0; i < nr_queries; ++i) len += 4 /* length of query */ + strlen (h->request_meta_contexts[i]); h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_SET_META_CONTEXT); h->sbuf.option.optlen = htobe32 (len); h->wbuf = &h->sbuf; h->wlen = sizeof (h->sbuf.option); h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND); return 0; NEWSTYLE.OPT_SET_META_CONTEXT.SEND: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->sbuf.len = htobe32 (strlen (h->export_name)); h->wbuf = &h->sbuf.len; h->wlen = sizeof h->sbuf.len; h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND_EXPORTNAMELEN); } return 0; NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAMELEN: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->wbuf = h->export_name; h->wlen = strlen (h->export_name); h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND_EXPORTNAME); } return 0; NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAME: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->sbuf.nrqueries = htobe32 (nbd_internal_string_list_length (h->request_meta_contexts)); h->wbuf = &h->sbuf; h->wlen = sizeof h->sbuf.nrqueries; h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND_NRQUERIES); } return 0; NEWSTYLE.OPT_SET_META_CONTEXT.SEND_NRQUERIES: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->querynum = 0; SET_NEXT_STATE (%PREPARE_NEXT_QUERY); } return 0; NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_NEXT_QUERY: const char *query = h->request_meta_contexts[h->querynum]; if (query == NULL) { /* end of list of requested meta contexts */ SET_NEXT_STATE (%PREPARE_FOR_REPLY); return 0; } h->sbuf.len = htobe32 (strlen (query)); h->wbuf = &h->sbuf.len; h->wlen = sizeof h->sbuf.len; h->wflags = MSG_MORE; SET_NEXT_STATE (%SEND_QUERYLEN); return 0; NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERYLEN: const char *query = h->request_meta_contexts[h->querynum]; switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->wbuf = query; h->wlen = strlen (query); SET_NEXT_STATE (%SEND_QUERY); } return 0; NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERY: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->querynum++; SET_NEXT_STATE (%PREPARE_NEXT_QUERY); } return 0; NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_FOR_REPLY: h->rbuf = &h->sbuf.or.option_reply; h->rlen = sizeof h->sbuf.or.option_reply; SET_NEXT_STATE (%RECV_REPLY); return 0; NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: if (prepare_for_reply_payload (h, NBD_OPT_SET_META_CONTEXT) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } SET_NEXT_STATE (%RECV_REPLY_PAYLOAD); } return 0; NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY_PAYLOAD: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%CHECK_REPLY); } return 0; NEWSTYLE.OPT_SET_META_CONTEXT.CHECK_REPLY: uint32_t reply; uint32_t len; const size_t maxpayload = sizeof h->sbuf.or.payload.context; struct meta_context *meta_context; reply = be32toh (h->sbuf.or.option_reply.reply); len = be32toh (h->sbuf.or.option_reply.replylen); switch (reply) { case NBD_REP_ACK: /* End of list of replies. */ SET_NEXT_STATE (%^OPT_GO.START); break; case NBD_REP_META_CONTEXT: /* A context. */ if (len > maxpayload) debug (h, "skipping too large meta context"); else { assert (len > sizeof h->sbuf.or.payload.context.context.context_id); meta_context = malloc (sizeof *meta_context); if (meta_context == NULL) { set_error (errno, "malloc"); SET_NEXT_STATE (%.DEAD); return 0; } meta_context->context_id = be32toh (h->sbuf.or.payload.context.context.context_id); /* String payload is not NUL-terminated. */ meta_context->name = strndup (h->sbuf.or.payload.context.str, len - sizeof meta_context->context_id); if (meta_context->name == NULL) { set_error (errno, "strdup"); SET_NEXT_STATE (%.DEAD); free (meta_context); return 0; } debug (h, "negotiated %s with context ID %" PRIu32, meta_context->name, meta_context->context_id); meta_context->next = h->meta_contexts; h->meta_contexts = meta_context; } SET_NEXT_STATE (%PREPARE_FOR_REPLY); break; default: /* Anything else is an error, ignore it */ if (handle_reply_error (h) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } debug (h, "handshake: unexpected error from " "NBD_OPT_SET_META_CONTEXT (%" PRIu32 ")", reply); SET_NEXT_STATE (%^OPT_GO.START); break; } return 0; } /* END STATE MACHINE */ ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-newstyle-opt-starttls.c�����������������������������������������������0000664�0001750�0001750�00000010444�13546661321�017666� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for sending NBD_OPT_STARTTLS. */ STATE_MACHINE { NEWSTYLE.OPT_STARTTLS.START: /* If TLS was not requested we skip this option and go to the next one. */ if (h->tls == LIBNBD_TLS_DISABLE) { SET_NEXT_STATE (%^OPT_STRUCTURED_REPLY.START); return 0; } h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_STARTTLS); h->sbuf.option.optlen = 0; h->wbuf = &h->sbuf; h->wlen = sizeof (h->sbuf.option); SET_NEXT_STATE (%SEND); return 0; NEWSTYLE.OPT_STARTTLS.SEND: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->rbuf = &h->sbuf; h->rlen = sizeof (h->sbuf.or.option_reply); SET_NEXT_STATE (%RECV_REPLY); } return 0; NEWSTYLE.OPT_STARTTLS.RECV_REPLY: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: if (prepare_for_reply_payload (h, NBD_OPT_STARTTLS) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } SET_NEXT_STATE (%RECV_REPLY_PAYLOAD); } return 0; NEWSTYLE.OPT_STARTTLS.RECV_REPLY_PAYLOAD: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%CHECK_REPLY); } return 0; NEWSTYLE.OPT_STARTTLS.CHECK_REPLY: uint32_t reply; struct socket *new_sock; reply = be32toh (h->sbuf.or.option_reply.reply); switch (reply) { case NBD_REP_ACK: new_sock = nbd_internal_crypto_create_session (h, h->sock); if (new_sock == NULL) { SET_NEXT_STATE (%.DEAD); return 0; } h->sock = new_sock; if (nbd_internal_crypto_is_reading (h)) SET_NEXT_STATE (%TLS_HANDSHAKE_READ); else SET_NEXT_STATE (%TLS_HANDSHAKE_WRITE); return 0; default: if (handle_reply_error (h) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } /* Server refused to upgrade to TLS. If h->tls is not 'require' (2) * then we can continue unencrypted. */ if (h->tls == LIBNBD_TLS_REQUIRE) { SET_NEXT_STATE (%.DEAD); set_error (ENOTSUP, "handshake: server refused TLS, " "but handle TLS setting is 'require' (2)"); return 0; } debug (h, "server refused TLS (%s), continuing with unencrypted connection", reply == NBD_REP_ERR_POLICY ? "policy" : "not supported"); SET_NEXT_STATE (%^OPT_STRUCTURED_REPLY.START); return 0; } return 0; NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_READ: int r; r = nbd_internal_crypto_handshake (h); if (r == -1) { SET_NEXT_STATE (%.DEAD); return 0; } if (r == 0) { /* Finished handshake. */ h->tls_negotiated = true; nbd_internal_crypto_debug_tls_enabled (h); /* Continue with option negotiation. */ SET_NEXT_STATE (%^OPT_STRUCTURED_REPLY.START); return 0; } /* Continue handshake. */ if (nbd_internal_crypto_is_reading (h)) SET_NEXT_STATE (%TLS_HANDSHAKE_READ); else SET_NEXT_STATE (%TLS_HANDSHAKE_WRITE); return 0; NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_WRITE: int r; r = nbd_internal_crypto_handshake (h); if (r == -1) { SET_NEXT_STATE (%.DEAD); return 0; } if (r == 0) { /* Finished handshake. */ debug (h, "connection is using TLS"); /* Continue with option negotiation. */ SET_NEXT_STATE (%^OPT_STRUCTURED_REPLY.START); return 0; } /* Continue handshake. */ if (nbd_internal_crypto_is_reading (h)) SET_NEXT_STATE (%TLS_HANDSHAKE_READ); else SET_NEXT_STATE (%TLS_HANDSHAKE_WRITE); return 0; } /* END STATE MACHINE */ ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-newstyle-opt-structured-reply.c���������������������������������������0000664�0001750�0001750�00000005127�13546661321�021345� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for negotiating NBD_OPT_STRUCTURED_REPLY. */ STATE_MACHINE { NEWSTYLE.OPT_STRUCTURED_REPLY.START: if (!h->request_sr) { SET_NEXT_STATE (%^OPT_SET_META_CONTEXT.START); return 0; } h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_STRUCTURED_REPLY); h->sbuf.option.optlen = htobe32 (0); h->wbuf = &h->sbuf; h->wlen = sizeof h->sbuf.option; SET_NEXT_STATE (%SEND); return 0; NEWSTYLE.OPT_STRUCTURED_REPLY.SEND: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.or.option_reply; SET_NEXT_STATE (%RECV_REPLY); } return 0; NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: if (prepare_for_reply_payload (h, NBD_OPT_STRUCTURED_REPLY) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } SET_NEXT_STATE (%RECV_REPLY_PAYLOAD); } return 0; NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY_PAYLOAD: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%CHECK_REPLY); } return 0; NEWSTYLE.OPT_STRUCTURED_REPLY.CHECK_REPLY: uint32_t reply; reply = be32toh (h->sbuf.or.option_reply.reply); switch (reply) { case NBD_REP_ACK: debug (h, "negotiated structured replies on this connection"); h->structured_replies = true; break; default: if (handle_reply_error (h) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } debug (h, "structured replies are not supported by this server"); h->structured_replies = false; break; } /* Next option. */ SET_NEXT_STATE (%^OPT_SET_META_CONTEXT.START); return 0; } /* END STATE MACHINE */ �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-newstyle.c������������������������������������������������������������0000664�0001750�0001750�00000011271�13546661321�015207� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <assert.h> #include "internal.h" /* Common code for parsing a reply to NBD_OPT_*. */ static int prepare_for_reply_payload (struct nbd_handle *h, uint32_t opt) { const size_t maxpayload = sizeof h->sbuf.or.payload; uint64_t magic; uint32_t option; uint32_t reply; uint32_t len; magic = be64toh (h->sbuf.or.option_reply.magic); option = be32toh (h->sbuf.or.option_reply.option); reply = be32toh (h->sbuf.or.option_reply.reply); len = be32toh (h->sbuf.or.option_reply.replylen); if (magic != NBD_REP_MAGIC || option != opt) { set_error (0, "handshake: invalid option reply magic or option"); return -1; } /* Validate lengths that the state machine depends on. */ switch (reply) { case NBD_REP_ACK: if (len != 0) { set_error (0, "handshake: invalid NBD_REP_ACK option reply length"); return -1; } break; case NBD_REP_INFO: /* Can't enforce an upper bound, thanks to unknown INFOs */ if (len < sizeof h->sbuf.or.payload.export.info) { set_error (0, "handshake: NBD_REP_INFO reply length too small"); return -1; } break; case NBD_REP_META_CONTEXT: if (len <= sizeof h->sbuf.or.payload.context.context || len > sizeof h->sbuf.or.payload.context) { set_error (0, "handshake: invalid NBD_REP_META_CONTEXT reply length"); return -1; } break; } /* Read the following payload if it is short enough to fit in the * static buffer. If it's too long, skip it. */ len = be32toh (h->sbuf.or.option_reply.replylen); if (len > MAX_REQUEST_SIZE) { set_error (0, "handshake: invalid option reply length"); return -1; } else if (len <= maxpayload) h->rbuf = &h->sbuf.or.payload; else h->rbuf = NULL; h->rlen = len; return 0; } /* Check an unexpected server reply. If it is an error, log any * message from the server and return 0; otherwise, return -1. */ static int handle_reply_error (struct nbd_handle *h) { uint32_t len; uint32_t reply; len = be32toh (h->sbuf.or.option_reply.replylen); reply = be32toh (h->sbuf.or.option_reply.reply); if (!NBD_REP_IS_ERR (reply)) { set_error (0, "handshake: unexpected option reply type %d", reply); return -1; } assert (NBD_MAX_STRING < sizeof h->sbuf.or.payload); if (len > NBD_MAX_STRING) { set_error (0, "handshake: option error string too long"); return -1; } if (len > 0) debug (h, "handshake: server error message: %.*s", (int) len, h->sbuf.or.payload.err_msg); return 0; } /* State machine for parsing the fixed newstyle handshake. */ STATE_MACHINE { NEWSTYLE.START: h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.gflags; SET_NEXT_STATE (%RECV_GFLAGS); return 0; NEWSTYLE.RECV_GFLAGS: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%CHECK_GFLAGS); } return 0; NEWSTYLE.CHECK_GFLAGS: uint32_t cflags; h->gflags &= be16toh (h->sbuf.gflags); if ((h->gflags & LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE) == 0 && h->tls == LIBNBD_TLS_REQUIRE) { SET_NEXT_STATE (%.DEAD); set_error (ENOTSUP, "handshake: server is not using fixed newstyle, " "but handle TLS setting is 'require' (2)"); return 0; } cflags = h->gflags; h->sbuf.cflags = htobe32 (cflags); h->wbuf = &h->sbuf; h->wlen = 4; SET_NEXT_STATE (%SEND_CFLAGS); return 0; NEWSTYLE.SEND_CFLAGS: switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: /* Start sending options. */ if ((h->gflags & LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE) == 0) SET_NEXT_STATE (%OPT_EXPORT_NAME.START); else SET_NEXT_STATE (%OPT_STARTTLS.START); } return 0; NEWSTYLE.FINISHED: if ((h->gflags & LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE) == 0) h->protocol = "newstyle"; else h->protocol = "newstyle-fixed"; SET_NEXT_STATE (%.READY); return 0; } /* END STATE MACHINE */ ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-oldstyle.c������������������������������������������������������������0000664�0001750�0001750�00000004521�13546661321�015174� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for parsing the oldstyle handshake. */ STATE_MACHINE { OLDSTYLE.START: /* We've already read the first 16 bytes of the handshake, we must * now read the remainder. */ h->rbuf = &h->sbuf.old_handshake; h->rlen = sizeof h->sbuf.old_handshake; h->rbuf += 16; h->rlen -= 16; SET_NEXT_STATE (%RECV_REMAINING); return 0; OLDSTYLE.RECV_REMAINING: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 0: SET_NEXT_STATE (%CHECK); } return 0; OLDSTYLE.CHECK: uint64_t exportsize; uint16_t gflags, eflags; /* We already checked the magic and version in MAGIC.CHECK_MAGIC. */ exportsize = be64toh (h->sbuf.old_handshake.exportsize); gflags = be16toh (h->sbuf.old_handshake.gflags); eflags = be16toh (h->sbuf.old_handshake.eflags); /* Server is unable to upgrade to TLS. If h->tls is not 'require' (2) * then we can continue unencrypted. */ if (h->tls == LIBNBD_TLS_REQUIRE) { SET_NEXT_STATE (%.DEAD); set_error (ENOTSUP, "handshake: server is oldstyle, " "but handle TLS setting is 'require' (2)"); return 0; } h->gflags = gflags; debug (h, "gflags: 0x%" PRIx16, gflags); if (gflags) { set_error (0, "handshake: oldstyle server should not set gflags"); SET_NEXT_STATE (%.DEAD); return 0; } if (nbd_internal_set_size_and_flags (h, exportsize, eflags) == -1) { SET_NEXT_STATE (%.DEAD); return 0; } h->protocol = "oldstyle"; SET_NEXT_STATE (%.READY); return 0; } /* END STATE MACHINE */ �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-reply-simple.c��������������������������������������������������������0000664�0001750�0001750�00000004471�13546661321�015763� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for parsing simple replies from the server. */ STATE_MACHINE { REPLY.SIMPLE_REPLY.START: struct command *cmd = h->reply_cmd; uint32_t error; uint64_t cookie; error = be32toh (h->sbuf.simple_reply.error); cookie = be64toh (h->sbuf.simple_reply.handle); assert (cmd); assert (cmd->cookie == cookie); if (cmd->type == NBD_CMD_READ && h->structured_replies) { set_error (0, "server sent unexpected simple reply for read"); SET_NEXT_STATE(%.DEAD); return 0; } cmd->error = nbd_internal_errno_of_nbd_error (error); if (cmd->error == 0 && cmd->type == NBD_CMD_READ) { h->rbuf = cmd->data; h->rlen = cmd->count; cmd->data_seen = true; SET_NEXT_STATE (%RECV_READ_PAYLOAD); } else { SET_NEXT_STATE (%^FINISH_COMMAND); } return 0; REPLY.SIMPLE_REPLY.RECV_READ_PAYLOAD: struct command *cmd = h->reply_cmd; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (%.READY); return 0; case 0: /* guaranteed by START */ assert (cmd); if (CALLBACK_IS_NOT_NULL (cmd->cb.fn.chunk)) { int error = 0; assert (cmd->error == 0); if (CALL_CALLBACK (cmd->cb.fn.chunk, cmd->data, cmd->count, cmd->offset, LIBNBD_READ_DATA, &error) == -1) cmd->error = error ? error : EPROTO; } SET_NEXT_STATE (%^FINISH_COMMAND); } return 0; } /* END STATE MACHINE */ �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-reply-structured.c����������������������������������������������������0000664�0001750�0001750�00000037444�13551165722�016704� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for parsing structured replies from the server. */ #include <stdbool.h> #include <stdint.h> #include <inttypes.h> /* Structured reply must be completely inside the bounds of the * requesting command. */ static bool structured_reply_in_bounds (uint64_t offset, uint32_t length, const struct command *cmd) { if (offset < cmd->offset || offset >= cmd->offset + cmd->count || offset + length > cmd->offset + cmd->count) { set_error (0, "range of structured reply is out of bounds, " "offset=%" PRIu64 ", cmd->offset=%" PRIu64 ", " "length=%" PRIu32 ", cmd->count=%" PRIu32 ": " "this is likely to be a bug in the NBD server", offset, cmd->offset, length, cmd->count); return false; } return true; } STATE_MACHINE { REPLY.STRUCTURED_REPLY.START: /* We've only read the simple_reply. The structured_reply is longer, * so read the remaining part. */ if (!h->structured_replies) { set_error (0, "server sent unexpected structured reply"); SET_NEXT_STATE(%.DEAD); return 0; } h->rbuf = &h->sbuf; h->rbuf += sizeof h->sbuf.simple_reply; h->rlen = sizeof h->sbuf.sr.structured_reply; h->rlen -= sizeof h->sbuf.simple_reply; SET_NEXT_STATE (%RECV_REMAINING); return 0; REPLY.STRUCTURED_REPLY.RECV_REMAINING: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (%.READY); return 0; case 0: SET_NEXT_STATE (%CHECK); } return 0; REPLY.STRUCTURED_REPLY.CHECK: struct command *cmd = h->reply_cmd; uint16_t flags, type; uint64_t cookie; uint32_t length; flags = be16toh (h->sbuf.sr.structured_reply.flags); type = be16toh (h->sbuf.sr.structured_reply.type); cookie = be64toh (h->sbuf.sr.structured_reply.handle); length = be32toh (h->sbuf.sr.structured_reply.length); assert (cmd); assert (cmd->cookie == cookie); /* Reject a server that replies with too much information, but don't * reject a single structured reply to NBD_CMD_READ on the largest * size we were willing to send. The most likely culprit is a server * that replies with block status with way too many extents, but any * oversized reply is going to take long enough to resync that it is * not worth keeping the connection alive. */ if (length > MAX_REQUEST_SIZE + sizeof h->sbuf.sr.payload.offset_data) { set_error (0, "invalid server reply length"); SET_NEXT_STATE (%.DEAD); return 0; } if (NBD_REPLY_TYPE_IS_ERR (type)) { if (length < sizeof h->sbuf.sr.payload.error.error) { SET_NEXT_STATE (%.DEAD); set_error (0, "too short length in structured reply error"); return 0; } h->rbuf = &h->sbuf.sr.payload.error.error; h->rlen = sizeof h->sbuf.sr.payload.error.error; SET_NEXT_STATE (%RECV_ERROR); return 0; } else if (type == NBD_REPLY_TYPE_NONE) { if (length != 0) { SET_NEXT_STATE (%.DEAD); set_error (0, "invalid length in NBD_REPLY_TYPE_NONE"); return 0; } if (!(flags & NBD_REPLY_FLAG_DONE)) { SET_NEXT_STATE (%.DEAD); set_error (0, "NBD_REPLY_FLAG_DONE must be set in NBD_REPLY_TYPE_NONE"); return 0; } SET_NEXT_STATE (%FINISH); return 0; } else if (type == NBD_REPLY_TYPE_OFFSET_DATA) { /* The spec states that 0-length requests are unspecified, but * 0-length replies are broken. Still, it's easy enough to support * them as an extension, so we use < instead of <=. */ if (cmd->type != NBD_CMD_READ) { SET_NEXT_STATE (%.DEAD); set_error (0, "invalid command for receiving offset-data chunk, " "cmd->type=%" PRIu16 ", " "this is likely to be a bug in the server", cmd->type); return 0; } if (length < sizeof h->sbuf.sr.payload.offset_data) { SET_NEXT_STATE (%.DEAD); set_error (0, "too short length in NBD_REPLY_TYPE_OFFSET_DATA"); return 0; } h->rbuf = &h->sbuf.sr.payload.offset_data; h->rlen = sizeof h->sbuf.sr.payload.offset_data; SET_NEXT_STATE (%RECV_OFFSET_DATA); return 0; } else if (type == NBD_REPLY_TYPE_OFFSET_HOLE) { if (cmd->type != NBD_CMD_READ) { SET_NEXT_STATE (%.DEAD); set_error (0, "invalid command for receiving offset-hole chunk, " "cmd->type=%" PRIu16 ", " "this is likely to be a bug in the server", cmd->type); return 0; } if (length != sizeof h->sbuf.sr.payload.offset_hole) { SET_NEXT_STATE (%.DEAD); set_error (0, "invalid length in NBD_REPLY_TYPE_OFFSET_HOLE"); return 0; } h->rbuf = &h->sbuf.sr.payload.offset_hole; h->rlen = sizeof h->sbuf.sr.payload.offset_hole; SET_NEXT_STATE (%RECV_OFFSET_HOLE); return 0; } else if (type == NBD_REPLY_TYPE_BLOCK_STATUS) { if (cmd->type != NBD_CMD_BLOCK_STATUS) { SET_NEXT_STATE (%.DEAD); set_error (0, "invalid command for receiving block-status chunk, " "cmd->type=%" PRIu16 ", " "this is likely to be a bug in the server", cmd->type); return 0; } /* XXX We should be able to skip the bad reply in these two cases. */ if (length < 12 || ((length-4) & 7) != 0) { SET_NEXT_STATE (%.DEAD); set_error (0, "invalid length in NBD_REPLY_TYPE_BLOCK_STATUS"); return 0; } if (CALLBACK_IS_NULL (cmd->cb.fn.extent)) { SET_NEXT_STATE (%.DEAD); set_error (0, "not expecting NBD_REPLY_TYPE_BLOCK_STATUS here"); return 0; } /* We read the context ID followed by all the entries into a * single array and deal with it at the end. */ free (h->bs_entries); h->bs_entries = malloc (length); if (h->bs_entries == NULL) { SET_NEXT_STATE (%.DEAD); set_error (errno, "malloc"); return 0; } h->rbuf = h->bs_entries; h->rlen = length; SET_NEXT_STATE (%RECV_BS_ENTRIES); return 0; } else { SET_NEXT_STATE (%.DEAD); set_error (0, "unknown structured reply type (%" PRIu16 ")", type); return 0; } REPLY.STRUCTURED_REPLY.RECV_ERROR: uint32_t length, msglen; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (%.READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); msglen = be16toh (h->sbuf.sr.payload.error.error.len); if (msglen > length - sizeof h->sbuf.sr.payload.error.error || msglen > sizeof h->sbuf.sr.payload.error.msg) { SET_NEXT_STATE (%.DEAD); set_error (0, "error message length too large"); return 0; } h->rbuf = h->sbuf.sr.payload.error.msg; h->rlen = msglen; SET_NEXT_STATE (%RECV_ERROR_MESSAGE); } return 0; REPLY.STRUCTURED_REPLY.RECV_ERROR_MESSAGE: uint32_t length, msglen; uint16_t type; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (%.READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); msglen = be16toh (h->sbuf.sr.payload.error.error.len); type = be16toh (h->sbuf.sr.structured_reply.type); length -= sizeof h->sbuf.sr.payload.error.error + msglen; if (msglen) debug (h, "structured error server message: %.*s", (int) msglen, h->sbuf.sr.payload.error.msg); /* Special case two specific errors; ignore the tail for all others */ h->rbuf = NULL; h->rlen = length; switch (type) { case NBD_REPLY_TYPE_ERROR: if (length != 0) { SET_NEXT_STATE (%.DEAD); set_error (0, "error payload length too large"); return 0; } break; case NBD_REPLY_TYPE_ERROR_OFFSET: if (length != sizeof h->sbuf.sr.payload.error.offset) { SET_NEXT_STATE (%.DEAD); set_error (0, "invalid error payload length"); return 0; } h->rbuf = &h->sbuf.sr.payload.error.offset; break; } SET_NEXT_STATE (%RECV_ERROR_TAIL); } return 0; REPLY.STRUCTURED_REPLY.RECV_ERROR_TAIL: struct command *cmd = h->reply_cmd; uint32_t error; uint64_t offset; uint16_t type; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (%.READY); return 0; case 0: error = be32toh (h->sbuf.sr.payload.error.error.error); type = be16toh (h->sbuf.sr.structured_reply.type); assert (cmd); /* guaranteed by CHECK */ error = nbd_internal_errno_of_nbd_error (error); /* The spec requires the server to send a non-zero error */ if (error == NBD_SUCCESS) { debug (h, "server forgot to set error; using EINVAL"); error = NBD_EINVAL; } error = nbd_internal_errno_of_nbd_error (error); /* Sanity check that any error offset is in range, then invoke * user callback if present. */ if (type == NBD_REPLY_TYPE_ERROR_OFFSET) { offset = be64toh (h->sbuf.sr.payload.error.offset); if (! structured_reply_in_bounds (offset, 0, cmd)) { SET_NEXT_STATE (%.DEAD); return 0; } if (cmd->type == NBD_CMD_READ && CALLBACK_IS_NOT_NULL (cmd->cb.fn.chunk)) { int scratch = error; /* Different from successful reads: inform the callback about the * current error rather than any earlier one. If the callback fails * without setting errno, then use the server's error below. */ if (CALL_CALLBACK (cmd->cb.fn.chunk, cmd->data + (offset - cmd->offset), 0, offset, LIBNBD_READ_ERROR, &scratch) == -1) if (cmd->error == 0) cmd->error = scratch; } } /* Preserve first error encountered */ if (cmd->error == 0) cmd->error = error; SET_NEXT_STATE(%FINISH); } return 0; REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA: struct command *cmd = h->reply_cmd; uint64_t offset; uint32_t length; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (%.READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); offset = be64toh (h->sbuf.sr.payload.offset_data.offset); assert (cmd); /* guaranteed by CHECK */ assert (cmd->data && cmd->type == NBD_CMD_READ); cmd->data_seen = true; /* Length of the data following. */ length -= 8; /* Is the data within bounds? */ if (! structured_reply_in_bounds (offset, length, cmd)) { SET_NEXT_STATE (%.DEAD); return 0; } /* Now this is the byte offset in the read buffer. */ offset -= cmd->offset; /* Set up to receive the data directly to the user buffer. */ h->rbuf = cmd->data + offset; h->rlen = length; SET_NEXT_STATE (%RECV_OFFSET_DATA_DATA); } return 0; REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA_DATA: struct command *cmd = h->reply_cmd; uint64_t offset; uint32_t length; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (%.READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); offset = be64toh (h->sbuf.sr.payload.offset_data.offset); assert (cmd); /* guaranteed by CHECK */ if (CALLBACK_IS_NOT_NULL (cmd->cb.fn.chunk)) { int error = cmd->error; if (CALL_CALLBACK (cmd->cb.fn.chunk, cmd->data + (offset - cmd->offset), length - sizeof offset, offset, LIBNBD_READ_DATA, &error) == -1) if (cmd->error == 0) cmd->error = error ? error : EPROTO; } SET_NEXT_STATE (%FINISH); } return 0; REPLY.STRUCTURED_REPLY.RECV_OFFSET_HOLE: struct command *cmd = h->reply_cmd; uint64_t offset; uint32_t length; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (%.READY); return 0; case 0: offset = be64toh (h->sbuf.sr.payload.offset_hole.offset); length = be32toh (h->sbuf.sr.payload.offset_hole.length); assert (cmd); /* guaranteed by CHECK */ assert (cmd->data && cmd->type == NBD_CMD_READ); cmd->data_seen = true; /* Is the data within bounds? */ if (! structured_reply_in_bounds (offset, length, cmd)) { SET_NEXT_STATE (%.DEAD); return 0; } /* Now this is the byte offset in the read buffer. */ offset -= cmd->offset; /* The spec states that 0-length requests are unspecified, but * 0-length replies are broken. Still, it's easy enough to support * them as an extension, and this works even when length == 0. */ memset (cmd->data + offset, 0, length); if (CALLBACK_IS_NOT_NULL (cmd->cb.fn.chunk)) { int error = cmd->error; if (CALL_CALLBACK (cmd->cb.fn.chunk, cmd->data + offset, length, cmd->offset + offset, LIBNBD_READ_HOLE, &error) == -1) if (cmd->error == 0) cmd->error = error ? error : EPROTO; } SET_NEXT_STATE(%FINISH); } return 0; REPLY.STRUCTURED_REPLY.RECV_BS_ENTRIES: struct command *cmd = h->reply_cmd; uint32_t length; size_t i; uint32_t context_id; struct meta_context *meta_context; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (%.READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); assert (cmd); /* guaranteed by CHECK */ assert (cmd->type == NBD_CMD_BLOCK_STATUS); assert (CALLBACK_IS_NOT_NULL (cmd->cb.fn.extent)); assert (h->bs_entries); assert (length >= 12); /* Need to byte-swap the entries returned, but apart from that we * don't validate them. */ for (i = 0; i < length/4; ++i) h->bs_entries[i] = be32toh (h->bs_entries[i]); /* Look up the context ID. */ context_id = h->bs_entries[0]; for (meta_context = h->meta_contexts; meta_context; meta_context = meta_context->next) if (context_id == meta_context->context_id) break; if (meta_context) { /* Call the caller's extent function. */ int error = cmd->error; if (CALL_CALLBACK (cmd->cb.fn.extent, meta_context->name, cmd->offset, &h->bs_entries[1], (length-4) / 4, &error) == -1) if (cmd->error == 0) cmd->error = error ? error : EPROTO; } else /* Emit a debug message, but ignore it. */ debug (h, "server sent unexpected meta context ID %" PRIu32, context_id); SET_NEXT_STATE(%FINISH); } return 0; REPLY.STRUCTURED_REPLY.FINISH: uint16_t flags; flags = be16toh (h->sbuf.sr.structured_reply.flags); if (flags & NBD_REPLY_FLAG_DONE) { SET_NEXT_STATE (%^FINISH_COMMAND); } else { h->reply_cmd = NULL; SET_NEXT_STATE (%.READY); } return 0; } /* END STATE MACHINE */ ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/generator/states-reply.c���������������������������������������������������������������0000664�0001750�0001750�00000014502�13546661321�014470� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <assert.h> /* State machine for receiving reply messages from the server. * * Note that we never block while in this sub-group. If there is * insufficient data to finish parsing a reply, requiring us to block * until POLLIN, we instead track where in the state machine we left * off, then return to READY to actually block. Then, on entry to * REPLY.START, we can tell if this is the start of a new reply (rlen * is 0, stay put), a continuation of the preamble (reply_cmd is NULL, * resume with RECV_REPLY), or a continuation from any other location * (reply_cmd contains the state to jump to). */ static void save_reply_state (struct nbd_handle *h) { assert (h->reply_cmd); assert (h->rlen); h->reply_cmd->state = get_next_state (h); } STATE_MACHINE { REPLY.START: /* If rlen is non-zero, we are resuming an earlier reply cycle. */ if (h->rlen > 0) { if (h->reply_cmd) { assert (nbd_internal_is_state_processing (h->reply_cmd->state)); SET_NEXT_STATE (h->reply_cmd->state); } else SET_NEXT_STATE (%RECV_REPLY); return 0; } /* This state is entered when a read notification is received in the * READY state. Therefore we know the socket is readable here. * Reading a zero length now would indicate that the socket has been * closed by the server and so we should jump to the CLOSED state. * However recv_into_rbuf will fail in this case, so test it as a * special case. */ ssize_t r; /* We read all replies initially as if they are simple replies, but * check the magic in CHECK_SIMPLE_OR_STRUCTURED_REPLY below. * This works because the structured_reply header is larger. */ assert (h->reply_cmd == NULL); assert (h->rlen == 0); h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.simple_reply; r = h->sock->ops->recv (h, h->sock, h->rbuf, h->rlen); if (r == -1) { /* This should never happen because when we enter this state we * should have notification that the socket is ready to read. * However if for some reason it does happen, ignore it - we will * reenter this same state again next time the socket is ready to * read. */ if (errno == EAGAIN || errno == EWOULDBLOCK) return 0; /* sock->ops->recv called set_error already. */ SET_NEXT_STATE (%.DEAD); return 0; } if (r == 0) { SET_NEXT_STATE (%.CLOSED); return 0; } #ifdef DUMP_PACKETS if (h->rbuf != NULL) nbd_internal_hexdump (h->rbuf, r, stderr); #endif h->rbuf += r; h->rlen -= r; SET_NEXT_STATE (%RECV_REPLY); return 0; REPLY.RECV_REPLY: switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (%.DEAD); return 0; case 1: SET_NEXT_STATE (%.READY); return 0; case 0: SET_NEXT_STATE (%CHECK_SIMPLE_OR_STRUCTURED_REPLY); } return 0; REPLY.CHECK_SIMPLE_OR_STRUCTURED_REPLY: struct command *cmd; uint32_t magic; uint64_t cookie; magic = be32toh (h->sbuf.simple_reply.magic); if (magic == NBD_SIMPLE_REPLY_MAGIC) { SET_NEXT_STATE (%SIMPLE_REPLY.START); } else if (magic == NBD_STRUCTURED_REPLY_MAGIC) { SET_NEXT_STATE (%STRUCTURED_REPLY.START); } else { SET_NEXT_STATE (%.DEAD); /* We've probably lost synchronization. */ set_error (0, "invalid reply magic"); return 0; } /* NB: This works for both simple and structured replies because the * handle (our cookie) is stored at the same offset. */ cookie = be64toh (h->sbuf.simple_reply.handle); /* Find the command amongst the commands in flight. */ for (cmd = h->cmds_in_flight; cmd != NULL; cmd = cmd->next) { if (cmd->cookie == cookie) break; } if (cmd == NULL) { /* An unexpected structured reply could be skipped, since it * includes a length; similarly an unexpected simple reply can be * skipped if we assume it was not a read. However, it's more * likely we've lost synchronization with the server. */ SET_NEXT_STATE (%.DEAD); set_error (0, "no matching cookie found for server reply, " "this is probably a bug in the server"); return 0; } h->reply_cmd = cmd; return 0; REPLY.FINISH_COMMAND: struct command *prev_cmd, *cmd; uint64_t cookie; bool retire; /* NB: This works for both simple and structured replies because the * handle (our cookie) is stored at the same offset. */ cookie = be64toh (h->sbuf.simple_reply.handle); /* Find the command amongst the commands in flight. */ for (cmd = h->cmds_in_flight, prev_cmd = NULL; cmd != NULL; prev_cmd = cmd, cmd = cmd->next) { if (cmd->cookie == cookie) break; } assert (cmd != NULL); assert (h->reply_cmd == cmd); h->reply_cmd = NULL; retire = cmd->type == NBD_CMD_DISC; /* Notify the user */ if (CALLBACK_IS_NOT_NULL (cmd->cb.completion)) { int error = cmd->error; int r; assert (cmd->type != NBD_CMD_DISC); r = CALL_CALLBACK (cmd->cb.completion, &error); switch (r) { case -1: if (error) cmd->error = error; break; case 1: retire = true; break; } } /* Move it to the end of the cmds_done list. */ if (prev_cmd != NULL) prev_cmd->next = cmd->next; else h->cmds_in_flight = cmd->next; cmd->next = NULL; if (retire) nbd_internal_retire_and_free_command (cmd); else { if (h->cmds_done_tail != NULL) h->cmds_done_tail = h->cmds_done_tail->next = cmd; else { assert (h->cmds_done == NULL); h->cmds_done = h->cmds_done_tail = cmd; } } h->in_flight--; assert (h->in_flight >= 0); SET_NEXT_STATE (%.READY); return 0; } /* END STATE MACHINE */ ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/subdir-rules.mk������������������������������������������������������������������������0000664�0001750�0001750�00000002431�13525336241�012646� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # subdir-rules.mk is included only in subdirectories. # common-rules.mk is included in every Makefile.am. include $(top_srcdir)/common-rules.mk %.cmi: %.mli $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ %.cmo: %.ml $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ if HAVE_OCAMLOPT %.cmx: %.ml $(OCAMLFIND) ocamlopt $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ endif $(top_builddir)/podwrapper.pl: $(top_srcdir)/podwrapper.pl.in $(MAKE) -C $(top_builddir) podwrapper.pl ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/include/�������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�011412� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/include/Makefile.am��������������������������������������������������������������������0000664�0001750�0001750�00000001721�13524776043�013364� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk generator_built = libnbd.h EXTRA_DIST = $(generator_built) BUILT_SOURCES = $(generator_built) include_HEADERS = \ libnbd.h \ $(NULL) �����������������������������������������������libnbd-1.2.2/include/libnbd.h�����������������������������������������������������������������������0000444�0001750�0001750�00000040402�13563236630�012722� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef LIBNBD_H #define LIBNBD_H /* This is the public interface to libnbd, a client library for * accessing Network Block Device (NBD) servers. * * Please read the libnbd(3) manual page to * find out how to use this library. */ #include <stdbool.h> #include <stdint.h> #include <sys/socket.h> #ifdef __cplusplus extern "C" { #endif struct nbd_handle; #define LIBNBD_TLS_DISABLE 0 #define LIBNBD_TLS_ALLOW 1 #define LIBNBD_TLS_REQUIRE 2 #define LIBNBD_CMD_FLAG_FUA 1 #define LIBNBD_CMD_FLAG_NO_HOLE 2 #define LIBNBD_CMD_FLAG_DF 4 #define LIBNBD_CMD_FLAG_REQ_ONE 8 #define LIBNBD_CMD_FLAG_FAST_ZERO 16 #define LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE 1 #define LIBNBD_HANDSHAKE_FLAG_NO_ZEROES 2 #define LIBNBD_ALLOW_TRANSPORT_TCP 1 #define LIBNBD_ALLOW_TRANSPORT_UNIX 2 #define LIBNBD_ALLOW_TRANSPORT_VSOCK 4 #define LIBNBD_AIO_DIRECTION_READ 1 #define LIBNBD_AIO_DIRECTION_WRITE 2 #define LIBNBD_AIO_DIRECTION_BOTH 3 #define LIBNBD_READ_DATA 1 #define LIBNBD_READ_HOLE 2 #define LIBNBD_READ_ERROR 3 extern struct nbd_handle *nbd_create (void); #define LIBNBD_HAVE_NBD_CREATE 1 extern void nbd_close (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CLOSE 1 extern const char *nbd_get_error (void); #define LIBNBD_HAVE_NBD_GET_ERROR 1 extern int nbd_get_errno (void); #define LIBNBD_HAVE_NBD_GET_ERRNO 1 /* These are used for callback parameters. They are passed * by value not by reference. See CALLBACKS in libnbd(3). */ typedef struct { int (*callback) (void *user_data, const void *subbuf, size_t count, uint64_t offset, unsigned status, int *error); void *user_data; void (*free) (void *user_data); } nbd_chunk_callback; typedef struct { int (*callback) (void *user_data, int *error); void *user_data; void (*free) (void *user_data); } nbd_completion_callback; typedef struct { int (*callback) (void *user_data, const char *context, const char *msg); void *user_data; void (*free) (void *user_data); } nbd_debug_callback; typedef struct { int (*callback) (void *user_data, const char *metacontext, uint64_t offset, uint32_t *entries, size_t nr_entries, int *error); void *user_data; void (*free) (void *user_data); } nbd_extent_callback; /* Note NBD_NULL_* are only generated for callbacks which are * optional. (See OClosure in the generator). */ #define NBD_NULL_COMPLETION ((nbd_completion_callback) { .callback = NULL }) extern int nbd_set_debug (struct nbd_handle *h, bool debug); #define LIBNBD_HAVE_NBD_SET_DEBUG 1 extern int nbd_get_debug (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_DEBUG 1 extern int nbd_set_debug_callback (struct nbd_handle *h, nbd_debug_callback debug_callback); #define LIBNBD_HAVE_NBD_SET_DEBUG_CALLBACK 1 extern int nbd_clear_debug_callback (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CLEAR_DEBUG_CALLBACK 1 extern int nbd_set_handle_name (struct nbd_handle *h, const char *handle_name); #define LIBNBD_HAVE_NBD_SET_HANDLE_NAME 1 extern char * nbd_get_handle_name (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_HANDLE_NAME 1 extern int nbd_set_export_name (struct nbd_handle *h, const char *export_name); #define LIBNBD_HAVE_NBD_SET_EXPORT_NAME 1 extern char * nbd_get_export_name (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_EXPORT_NAME 1 extern int nbd_set_tls (struct nbd_handle *h, int tls); #define LIBNBD_HAVE_NBD_SET_TLS 1 extern int nbd_get_tls (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_TLS 1 extern int nbd_get_tls_negotiated (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_TLS_NEGOTIATED 1 extern int nbd_set_tls_certificates (struct nbd_handle *h, const char *dir); #define LIBNBD_HAVE_NBD_SET_TLS_CERTIFICATES 1 extern int nbd_set_tls_verify_peer (struct nbd_handle *h, bool verify); #define LIBNBD_HAVE_NBD_SET_TLS_VERIFY_PEER 1 extern int nbd_get_tls_verify_peer (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_TLS_VERIFY_PEER 1 extern int nbd_set_tls_username (struct nbd_handle *h, const char *username); #define LIBNBD_HAVE_NBD_SET_TLS_USERNAME 1 extern char * nbd_get_tls_username (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_TLS_USERNAME 1 extern int nbd_set_tls_psk_file (struct nbd_handle *h, const char *filename); #define LIBNBD_HAVE_NBD_SET_TLS_PSK_FILE 1 extern int nbd_set_request_structured_replies (struct nbd_handle *h, bool request); #define LIBNBD_HAVE_NBD_SET_REQUEST_STRUCTURED_REPLIES 1 extern int nbd_get_request_structured_replies (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_REQUEST_STRUCTURED_REPLIES 1 extern int nbd_get_structured_replies_negotiated (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_STRUCTURED_REPLIES_NEGOTIATED 1 extern int nbd_set_handshake_flags (struct nbd_handle *h, uint32_t flags); #define LIBNBD_HAVE_NBD_SET_HANDSHAKE_FLAGS 1 extern unsigned nbd_get_handshake_flags (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_HANDSHAKE_FLAGS 1 extern int nbd_add_meta_context (struct nbd_handle *h, const char *name); #define LIBNBD_HAVE_NBD_ADD_META_CONTEXT 1 extern int nbd_set_uri_allow_transports (struct nbd_handle *h, uint32_t mask); #define LIBNBD_HAVE_NBD_SET_URI_ALLOW_TRANSPORTS 1 extern int nbd_set_uri_allow_tls (struct nbd_handle *h, int tls); #define LIBNBD_HAVE_NBD_SET_URI_ALLOW_TLS 1 extern int nbd_set_uri_allow_local_file (struct nbd_handle *h, bool allow); #define LIBNBD_HAVE_NBD_SET_URI_ALLOW_LOCAL_FILE 1 extern int nbd_connect_uri (struct nbd_handle *h, const char *uri); #define LIBNBD_HAVE_NBD_CONNECT_URI 1 extern int nbd_connect_unix (struct nbd_handle *h, const char *unixsocket); #define LIBNBD_HAVE_NBD_CONNECT_UNIX 1 extern int nbd_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port); #define LIBNBD_HAVE_NBD_CONNECT_VSOCK 1 extern int nbd_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port); #define LIBNBD_HAVE_NBD_CONNECT_TCP 1 extern int nbd_connect_socket (struct nbd_handle *h, int sock); #define LIBNBD_HAVE_NBD_CONNECT_SOCKET 1 extern int nbd_connect_command (struct nbd_handle *h, char **argv); #define LIBNBD_HAVE_NBD_CONNECT_COMMAND 1 extern int nbd_connect_systemd_socket_activation (struct nbd_handle *h, char **argv); #define LIBNBD_HAVE_NBD_CONNECT_SYSTEMD_SOCKET_ACTIVATION 1 extern int nbd_is_read_only (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_IS_READ_ONLY 1 extern int nbd_can_flush (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CAN_FLUSH 1 extern int nbd_can_fua (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CAN_FUA 1 extern int nbd_is_rotational (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_IS_ROTATIONAL 1 extern int nbd_can_trim (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CAN_TRIM 1 extern int nbd_can_zero (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CAN_ZERO 1 extern int nbd_can_fast_zero (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CAN_FAST_ZERO 1 extern int nbd_can_df (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CAN_DF 1 extern int nbd_can_multi_conn (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CAN_MULTI_CONN 1 extern int nbd_can_cache (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CAN_CACHE 1 extern int nbd_can_meta_context (struct nbd_handle *h, const char *metacontext); #define LIBNBD_HAVE_NBD_CAN_META_CONTEXT 1 extern const char * nbd_get_protocol (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_PROTOCOL 1 extern int64_t nbd_get_size (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_SIZE 1 extern int nbd_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, uint32_t flags); #define LIBNBD_HAVE_NBD_PREAD 1 extern int nbd_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_PREAD_STRUCTURED 1 extern int nbd_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, uint32_t flags); #define LIBNBD_HAVE_NBD_PWRITE 1 extern int nbd_shutdown (struct nbd_handle *h, uint32_t flags); #define LIBNBD_HAVE_NBD_SHUTDOWN 1 extern int nbd_flush (struct nbd_handle *h, uint32_t flags); #define LIBNBD_HAVE_NBD_FLUSH 1 extern int nbd_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags); #define LIBNBD_HAVE_NBD_TRIM 1 extern int nbd_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags); #define LIBNBD_HAVE_NBD_CACHE 1 extern int nbd_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags); #define LIBNBD_HAVE_NBD_ZERO 1 extern int nbd_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_BLOCK_STATUS 1 extern int nbd_poll (struct nbd_handle *h, int timeout); #define LIBNBD_HAVE_NBD_POLL 1 extern int nbd_aio_connect (struct nbd_handle *h, const struct sockaddr *addr, socklen_t addrlen); #define LIBNBD_HAVE_NBD_AIO_CONNECT 1 extern int nbd_aio_connect_uri (struct nbd_handle *h, const char *uri); #define LIBNBD_HAVE_NBD_AIO_CONNECT_URI 1 extern int nbd_aio_connect_unix (struct nbd_handle *h, const char *unixsocket); #define LIBNBD_HAVE_NBD_AIO_CONNECT_UNIX 1 extern int nbd_aio_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port); #define LIBNBD_HAVE_NBD_AIO_CONNECT_VSOCK 1 extern int nbd_aio_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port); #define LIBNBD_HAVE_NBD_AIO_CONNECT_TCP 1 extern int nbd_aio_connect_socket (struct nbd_handle *h, int sock); #define LIBNBD_HAVE_NBD_AIO_CONNECT_SOCKET 1 extern int nbd_aio_connect_command (struct nbd_handle *h, char **argv); #define LIBNBD_HAVE_NBD_AIO_CONNECT_COMMAND 1 extern int nbd_aio_connect_systemd_socket_activation (struct nbd_handle *h, char **argv); #define LIBNBD_HAVE_NBD_AIO_CONNECT_SYSTEMD_SOCKET_ACTIVATION 1 extern int64_t nbd_aio_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_AIO_PREAD 1 extern int64_t nbd_aio_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk_callback, nbd_completion_callback completion_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_AIO_PREAD_STRUCTURED 1 extern int64_t nbd_aio_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_AIO_PWRITE 1 extern int nbd_aio_disconnect (struct nbd_handle *h, uint32_t flags); #define LIBNBD_HAVE_NBD_AIO_DISCONNECT 1 extern int64_t nbd_aio_flush (struct nbd_handle *h, nbd_completion_callback completion_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_AIO_FLUSH 1 extern int64_t nbd_aio_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_AIO_TRIM 1 extern int64_t nbd_aio_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_AIO_CACHE 1 extern int64_t nbd_aio_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_AIO_ZERO 1 extern int64_t nbd_aio_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent_callback, nbd_completion_callback completion_callback, uint32_t flags); #define LIBNBD_HAVE_NBD_AIO_BLOCK_STATUS 1 extern int nbd_aio_get_fd (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_GET_FD 1 extern unsigned nbd_aio_get_direction (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_GET_DIRECTION 1 extern int nbd_aio_notify_read (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_NOTIFY_READ 1 extern int nbd_aio_notify_write (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_NOTIFY_WRITE 1 extern int nbd_aio_is_created (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_IS_CREATED 1 extern int nbd_aio_is_connecting (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_IS_CONNECTING 1 extern int nbd_aio_is_ready (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_IS_READY 1 extern int nbd_aio_is_processing (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_IS_PROCESSING 1 extern int nbd_aio_is_dead (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_IS_DEAD 1 extern int nbd_aio_is_closed (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_IS_CLOSED 1 extern int nbd_aio_command_completed (struct nbd_handle *h, int64_t cookie); #define LIBNBD_HAVE_NBD_AIO_COMMAND_COMPLETED 1 extern int64_t nbd_aio_peek_command_completed (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_PEEK_COMMAND_COMPLETED 1 extern int nbd_aio_in_flight (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_AIO_IN_FLIGHT 1 extern const char * nbd_connection_state (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_CONNECTION_STATE 1 extern const char * nbd_get_package_name (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_PACKAGE_NAME 1 extern const char * nbd_get_version (struct nbd_handle *h); #define LIBNBD_HAVE_NBD_GET_VERSION 1 extern int nbd_kill_subprocess (struct nbd_handle *h, int signum); 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�����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbdkit * Copyright (C) 2013-2018 Red Hat Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * * Neither the name of Red Hat nor the names of its contributors may be * used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* The job of this header is to define macros (or functions) called * things like 'htobe32' and 'le64toh' which byte swap N-bit integers * between host representation, and little and big endian. The core * code and plugins in nbdkit uses these names and relies on this * header to provide the platform-specific implementation. On Linux * these are defined in <endian.h> but other platforms have other * requirements. */ #ifndef NBDKIT_BYTE_SWAPPING_H #define NBDKIT_BYTE_SWAPPING_H #ifdef __HAIKU__ #define _BSD_SOURCE #endif #ifdef HAVE_BYTESWAP_H #include <byteswap.h> #endif #ifdef HAVE_ENDIAN_H #include <endian.h> #endif #ifdef HAVE_SYS_ENDIAN_H #include <sys/endian.h> #endif #ifndef htobe32 # if __BYTE_ORDER == __LITTLE_ENDIAN # define htobe16(x) __bswap_16 (x) # define htole16(x) (x) # define be16toh(x) __bswap_16 (x) # define le16toh(x) (x) # define htobe32(x) __bswap_32 (x) # define htole32(x) (x) # define be32toh(x) __bswap_32 (x) # define le32toh(x) (x) # define htobe64(x) __bswap_64 (x) # define htole64(x) (x) # define be64toh(x) __bswap_64 (x) # define le64toh(x) (x) # else # define htobe16(x) (x) # define htole16(x) __bswap_16 (x) # define be16toh(x) (x) # define le16toh(x) __bswap_16 (x) # define htobe32(x) (x) # define htole32(x) __bswap_32 (x) # define be32toh(x) (x) # define le32toh(x) __bswap_32 (x) # define htobe64(x) (x) # define htole64(x) __bswap_64 (x) # define be64toh(x) (x) # define le64toh(x) __bswap_64 (x) # endif #endif #endif /* NBDKIT_BYTE_SWAPPING_H */ ����libnbd-1.2.2/lib/�����������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�010535� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/Makefile.am������������������������������������������������������������������������0000664�0001750�0001750�00000003521�13552713634�012505� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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�����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/aio.c������������������������������������������������������������������������������0000664�0001750�0001750�00000007061�13525010563�011357� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <errno.h> #include <inttypes.h> #include <assert.h> #include "internal.h" /* Internal function which retires and frees a command. */ void nbd_internal_retire_and_free_command (struct command *cmd) { /* Free the callbacks. */ if (cmd->type == NBD_CMD_BLOCK_STATUS) FREE_CALLBACK (cmd->cb.fn.extent); if (cmd->type == NBD_CMD_READ) FREE_CALLBACK (cmd->cb.fn.chunk); FREE_CALLBACK (cmd->cb.completion); free (cmd); } int nbd_unlocked_aio_get_fd (struct nbd_handle *h) { if (!h->sock) { set_error (EINVAL, "connection is not in a connected state"); return -1; } return h->sock->ops->get_fd (h->sock); } int nbd_unlocked_aio_notify_read (struct nbd_handle *h) { return nbd_internal_run (h, notify_read); } int nbd_unlocked_aio_notify_write (struct nbd_handle *h) { return nbd_internal_run (h, notify_write); } int nbd_unlocked_aio_command_completed (struct nbd_handle *h, int64_t cookie) { struct command *prev_cmd, *cmd; uint16_t type; uint32_t error; if (cookie < 1) { set_error (EINVAL, "invalid aio cookie %" PRId64, cookie); return -1; } /* Find the command amongst the completed commands. */ for (cmd = h->cmds_done, prev_cmd = NULL; cmd != NULL; prev_cmd = cmd, cmd = cmd->next) { if (cmd->cookie == cookie) break; } if (!cmd) return 0; type = cmd->type; error = cmd->error; assert (cmd->type != NBD_CMD_DISC); /* The spec states that a 0-length read request is unspecified; but * it is easy enough to treat it as successful as an extension. */ if (type == NBD_CMD_READ && !cmd->data_seen && cmd->count && !error) error = EIO; /* Retire it from the list and free it. */ if (h->cmds_done_tail == cmd) { assert (cmd->next == NULL); h->cmds_done_tail = prev_cmd; } if (prev_cmd != NULL) prev_cmd->next = cmd->next; else h->cmds_done = cmd->next; nbd_internal_retire_and_free_command (cmd); /* If the command was successful, return true. */ if (error == 0) return 1; /* The command failed, set an error indication and return an error. */ set_error (error, "%s: command failed", nbd_internal_name_of_nbd_cmd (type)); return -1; } int64_t nbd_unlocked_aio_peek_command_completed (struct nbd_handle *h) { if (h->cmds_done != NULL) { assert (h->cmds_done->type != NBD_CMD_DISC); return h->cmds_done->cookie; } if (h->cmds_in_flight != NULL || h->cmds_to_issue != NULL) { set_error (0, "no in-flight command has completed yet"); return 0; } set_error (EINVAL, "no commands are in flight"); return -1; } int nbd_unlocked_aio_in_flight (struct nbd_handle *h) { return h->in_flight; } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/api.c������������������������������������������������������������������������������0000444�0001750�0001750�00000261652�13563236630�011373� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <errno.h> #include <pthread.h> #include "libnbd.h" #include "internal.h" int nbd_set_debug (struct nbd_handle *h, bool debug) { int ret; nbd_internal_set_error_context ("nbd_set_debug"); pthread_mutex_lock (&h->lock); debug (h, "enter: debug=%s", debug ? "true" : "false"); ret = nbd_unlocked_set_debug (h, debug); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_get_debug (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ pthread_mutex_lock (&h->lock); ret = nbd_unlocked_get_debug (h); if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_set_debug_callback (struct nbd_handle *h, nbd_debug_callback debug_callback) { int ret; nbd_internal_set_error_context ("nbd_set_debug_callback"); pthread_mutex_lock (&h->lock); debug (h, "enter: debug=<fun>"); if (CALLBACK_IS_NULL (debug_callback)) { set_error (EFAULT, "%s cannot be NULL", "debug"); ret = -1; goto out; } ret = nbd_unlocked_set_debug_callback (h, debug_callback); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_clear_debug_callback (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_clear_debug_callback"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_clear_debug_callback (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_set_handle_name (struct nbd_handle *h, const char *handle_name) { int ret; nbd_internal_set_error_context ("nbd_set_handle_name"); pthread_mutex_lock (&h->lock); debug (h, "enter: handle_name=\"%s\"", handle_name ? handle_name : "NULL"); if (handle_name == NULL) { set_error (EFAULT, "%s cannot be NULL", "handle_name"); ret = -1; goto out; } ret = nbd_unlocked_set_handle_name (h, handle_name); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } char * nbd_get_handle_name (struct nbd_handle *h) { char * ret; nbd_internal_set_error_context ("nbd_get_handle_name"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_get_handle_name (h); if_debug (h) { if (ret == NULL) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=\"%s\"", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_export_name_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_export_name (struct nbd_handle *h, const char *export_name) { int ret; nbd_internal_set_error_context ("nbd_set_export_name"); pthread_mutex_lock (&h->lock); debug (h, "enter: export_name=\"%s\"", export_name ? export_name : "NULL"); if (unlikely (!set_export_name_in_permitted_state (h))) { ret = -1; goto out; } if (export_name == NULL) { set_error (EFAULT, "%s cannot be NULL", "export_name"); ret = -1; goto out; } ret = nbd_unlocked_set_export_name (h, export_name); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } char * nbd_get_export_name (struct nbd_handle *h) { char * ret; nbd_internal_set_error_context ("nbd_get_export_name"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_get_export_name (h); if_debug (h) { if (ret == NULL) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=\"%s\"", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_tls_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_tls (struct nbd_handle *h, int tls) { int ret; nbd_internal_set_error_context ("nbd_set_tls"); pthread_mutex_lock (&h->lock); debug (h, "enter: tls=%d", tls); if (unlikely (!set_tls_in_permitted_state (h))) { ret = -1; goto out; } switch (tls) { case LIBNBD_TLS_DISABLE: case LIBNBD_TLS_ALLOW: case LIBNBD_TLS_REQUIRE: break; default: set_error (EINVAL, "%s: invalid value for parameter: %d", "tls", tls); ret = -1; goto out; } ret = nbd_unlocked_set_tls (h, tls); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_get_tls (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ pthread_mutex_lock (&h->lock); ret = nbd_unlocked_get_tls (h); if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool get_tls_negotiated_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_get_tls_negotiated (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_get_tls_negotiated"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!get_tls_negotiated_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_get_tls_negotiated (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_tls_certificates_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_tls_certificates (struct nbd_handle *h, const char *dir) { int ret; nbd_internal_set_error_context ("nbd_set_tls_certificates"); pthread_mutex_lock (&h->lock); debug (h, "enter: dir=\"%s\"", dir ? dir : "NULL"); if (unlikely (!set_tls_certificates_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_set_tls_certificates (h, dir); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_tls_verify_peer_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_tls_verify_peer (struct nbd_handle *h, bool verify) { int ret; nbd_internal_set_error_context ("nbd_set_tls_verify_peer"); pthread_mutex_lock (&h->lock); debug (h, "enter: verify=%s", verify ? "true" : "false"); if (unlikely (!set_tls_verify_peer_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_set_tls_verify_peer (h, verify); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_get_tls_verify_peer (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ pthread_mutex_lock (&h->lock); ret = nbd_unlocked_get_tls_verify_peer (h); if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_tls_username_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_tls_username (struct nbd_handle *h, const char *username) { int ret; nbd_internal_set_error_context ("nbd_set_tls_username"); pthread_mutex_lock (&h->lock); debug (h, "enter: username=\"%s\"", username ? username : "NULL"); if (unlikely (!set_tls_username_in_permitted_state (h))) { ret = -1; goto out; } if (username == NULL) { set_error (EFAULT, "%s cannot be NULL", "username"); ret = -1; goto out; } ret = nbd_unlocked_set_tls_username (h, username); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } char * nbd_get_tls_username (struct nbd_handle *h) { char * ret; nbd_internal_set_error_context ("nbd_get_tls_username"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_get_tls_username (h); if_debug (h) { if (ret == NULL) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=\"%s\"", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_tls_psk_file_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_tls_psk_file (struct nbd_handle *h, const char *filename) { int ret; nbd_internal_set_error_context ("nbd_set_tls_psk_file"); pthread_mutex_lock (&h->lock); debug (h, "enter: filename=\"%s\"", filename ? filename : "NULL"); if (unlikely (!set_tls_psk_file_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_set_tls_psk_file (h, filename); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_request_structured_replies_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_request_structured_replies (struct nbd_handle *h, bool request) { int ret; nbd_internal_set_error_context ("nbd_set_request_structured_replies"); pthread_mutex_lock (&h->lock); debug (h, "enter: request=%s", request ? "true" : "false"); if (unlikely (!set_request_structured_replies_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_set_request_structured_replies (h, request); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_get_request_structured_replies (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ pthread_mutex_lock (&h->lock); ret = nbd_unlocked_get_request_structured_replies (h); if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool get_structured_replies_negotiated_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_get_structured_replies_negotiated (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_get_structured_replies_negotiated"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!get_structured_replies_negotiated_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_get_structured_replies_negotiated (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_handshake_flags_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_handshake_flags (struct nbd_handle *h, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_set_handshake_flags"); pthread_mutex_lock (&h->lock); debug (h, "enter: flags=0x%x", flags); if (unlikely (!set_handshake_flags_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~3) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_set_handshake_flags (h, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } unsigned nbd_get_handshake_flags (struct nbd_handle *h) { unsigned ret; /* This function must not call set_error. */ pthread_mutex_lock (&h->lock); ret = nbd_unlocked_get_handshake_flags (h); if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool add_meta_context_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_add_meta_context (struct nbd_handle *h, const char *name) { int ret; nbd_internal_set_error_context ("nbd_add_meta_context"); pthread_mutex_lock (&h->lock); debug (h, "enter: name=\"%s\"", name ? name : "NULL"); if (unlikely (!add_meta_context_in_permitted_state (h))) { ret = -1; goto out; } if (name == NULL) { set_error (EFAULT, "%s cannot be NULL", "name"); ret = -1; goto out; } ret = nbd_unlocked_add_meta_context (h, name); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_uri_allow_transports_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_uri_allow_transports (struct nbd_handle *h, uint32_t mask) { int ret; nbd_internal_set_error_context ("nbd_set_uri_allow_transports"); pthread_mutex_lock (&h->lock); debug (h, "enter: mask=0x%x", mask); if (unlikely (!set_uri_allow_transports_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((mask & ~7) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "mask", mask); ret = -1; goto out; } ret = nbd_unlocked_set_uri_allow_transports (h, mask); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_uri_allow_tls_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_uri_allow_tls (struct nbd_handle *h, int tls) { int ret; nbd_internal_set_error_context ("nbd_set_uri_allow_tls"); pthread_mutex_lock (&h->lock); debug (h, "enter: tls=%d", tls); if (unlikely (!set_uri_allow_tls_in_permitted_state (h))) { ret = -1; goto out; } switch (tls) { case LIBNBD_TLS_DISABLE: case LIBNBD_TLS_ALLOW: case LIBNBD_TLS_REQUIRE: break; default: set_error (EINVAL, "%s: invalid value for parameter: %d", "tls", tls); ret = -1; goto out; } ret = nbd_unlocked_set_uri_allow_tls (h, tls); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool set_uri_allow_local_file_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_set_uri_allow_local_file (struct nbd_handle *h, bool allow) { int ret; nbd_internal_set_error_context ("nbd_set_uri_allow_local_file"); pthread_mutex_lock (&h->lock); debug (h, "enter: allow=%s", allow ? "true" : "false"); if (unlikely (!set_uri_allow_local_file_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_set_uri_allow_local_file (h, allow); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool connect_uri_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_connect_uri (struct nbd_handle *h, const char *uri) { int ret; nbd_internal_set_error_context ("nbd_connect_uri"); pthread_mutex_lock (&h->lock); debug (h, "enter: uri=\"%s\"", uri ? uri : "NULL"); if (unlikely (!connect_uri_in_permitted_state (h))) { ret = -1; goto out; } if (uri == NULL) { set_error (EFAULT, "%s cannot be NULL", "uri"); ret = -1; goto out; } ret = nbd_unlocked_connect_uri (h, uri); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool connect_unix_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_connect_unix (struct nbd_handle *h, const char *unixsocket) { int ret; nbd_internal_set_error_context ("nbd_connect_unix"); pthread_mutex_lock (&h->lock); debug (h, "enter: unixsocket=\"%s\"", unixsocket ? unixsocket : "NULL"); if (unlikely (!connect_unix_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_connect_unix (h, unixsocket); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool connect_vsock_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port) { int ret; nbd_internal_set_error_context ("nbd_connect_vsock"); pthread_mutex_lock (&h->lock); debug (h, "enter: cid=%" PRIu32 " port=%" PRIu32 "", cid, port); if (unlikely (!connect_vsock_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_connect_vsock (h, cid, port); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool connect_tcp_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port) { int ret; nbd_internal_set_error_context ("nbd_connect_tcp"); pthread_mutex_lock (&h->lock); debug (h, "enter: hostname=\"%s\" port=\"%s\"", hostname ? hostname : "NULL", port ? port : "NULL"); if (unlikely (!connect_tcp_in_permitted_state (h))) { ret = -1; goto out; } if (hostname == NULL) { set_error (EFAULT, "%s cannot be NULL", "hostname"); ret = -1; goto out; } if (port == NULL) { set_error (EFAULT, "%s cannot be NULL", "port"); ret = -1; goto out; } ret = nbd_unlocked_connect_tcp (h, hostname, port); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool connect_socket_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_connect_socket (struct nbd_handle *h, int sock) { int ret; nbd_internal_set_error_context ("nbd_connect_socket"); pthread_mutex_lock (&h->lock); debug (h, "enter: sock=%d", sock); if (unlikely (!connect_socket_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_connect_socket (h, sock); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool connect_command_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_connect_command (struct nbd_handle *h, char **argv) { int ret; nbd_internal_set_error_context ("nbd_connect_command"); pthread_mutex_lock (&h->lock); debug (h, "enter: argv=<list>"); if (unlikely (!connect_command_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_connect_command (h, argv); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool connect_systemd_socket_activation_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_connect_systemd_socket_activation (struct nbd_handle *h, char **argv) { int ret; nbd_internal_set_error_context ("nbd_connect_systemd_socket_activation"); pthread_mutex_lock (&h->lock); debug (h, "enter: argv=<list>"); if (unlikely (!connect_systemd_socket_activation_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_connect_systemd_socket_activation (h, argv); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool is_read_only_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_is_read_only (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_is_read_only"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!is_read_only_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_is_read_only (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool can_flush_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_can_flush (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_can_flush"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!can_flush_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_can_flush (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool can_fua_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_can_fua (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_can_fua"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!can_fua_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_can_fua (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool is_rotational_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_is_rotational (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_is_rotational"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!is_rotational_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_is_rotational (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool can_trim_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_can_trim (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_can_trim"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!can_trim_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_can_trim (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool can_zero_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_can_zero (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_can_zero"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!can_zero_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_can_zero (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool can_fast_zero_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_can_fast_zero (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_can_fast_zero"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!can_fast_zero_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_can_fast_zero (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_can_df (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_can_df"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_can_df (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool can_multi_conn_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_can_multi_conn (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_can_multi_conn"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!can_multi_conn_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_can_multi_conn (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool can_cache_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_can_cache (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_can_cache"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!can_cache_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_can_cache (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool can_meta_context_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int nbd_can_meta_context (struct nbd_handle *h, const char *metacontext) { int ret; nbd_internal_set_error_context ("nbd_can_meta_context"); pthread_mutex_lock (&h->lock); debug (h, "enter: metacontext=\"%s\"", metacontext ? metacontext : "NULL"); if (unlikely (!can_meta_context_in_permitted_state (h))) { ret = -1; goto out; } if (metacontext == NULL) { set_error (EFAULT, "%s cannot be NULL", "metacontext"); ret = -1; goto out; } ret = nbd_unlocked_can_meta_context (h, metacontext); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool get_protocol_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } const char * nbd_get_protocol (struct nbd_handle *h) { const char * ret; nbd_internal_set_error_context ("nbd_get_protocol"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!get_protocol_in_permitted_state (h))) { ret = NULL; goto out; } ret = nbd_unlocked_get_protocol (h); if_debug (h) { if (ret == NULL) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=\"%s\"", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool get_size_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down"); return false; } return true; } int64_t nbd_get_size (struct nbd_handle *h) { int64_t ret; nbd_internal_set_error_context ("nbd_get_size"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!get_size_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_get_size (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool pread_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_pread"); pthread_mutex_lock (&h->lock); debug (h, "enter: buf=<buf> count=%zu offset=%" PRIu64 " flags=0x%x", count, offset, flags); if (unlikely (!pread_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_pread (h, buf, count, offset, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool pread_structured_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk_callback, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_pread_structured"); pthread_mutex_lock (&h->lock); debug (h, "enter: buf=<buf> count=%zu offset=%" PRIu64 " chunk=<fun> flags=0x%x", count, offset, flags); if (unlikely (!pread_structured_in_permitted_state (h))) { ret = -1; goto out; } if (CALLBACK_IS_NULL (chunk_callback)) { set_error (EFAULT, "%s cannot be NULL", "chunk"); ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_pread_structured (h, buf, count, offset, chunk_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool pwrite_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_pwrite"); pthread_mutex_lock (&h->lock); debug (h, "enter: buf=<buf> count=%zu offset=%" PRIu64 " flags=0x%x", count, offset, flags); if (unlikely (!pwrite_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_pwrite (h, buf, count, offset, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool shutdown_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_shutdown (struct nbd_handle *h, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_shutdown"); pthread_mutex_lock (&h->lock); debug (h, "enter: flags=0x%x", flags); if (unlikely (!shutdown_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_shutdown (h, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool flush_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_flush (struct nbd_handle *h, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_flush"); pthread_mutex_lock (&h->lock); debug (h, "enter: flags=0x%x", flags); if (unlikely (!flush_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_flush (h, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool trim_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_trim"); pthread_mutex_lock (&h->lock); debug (h, "enter: count=%" PRIu64 " offset=%" PRIu64 " flags=0x%x", count, offset, flags); if (unlikely (!trim_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_trim (h, count, offset, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool cache_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_cache"); pthread_mutex_lock (&h->lock); debug (h, "enter: count=%" PRIu64 " offset=%" PRIu64 " flags=0x%x", count, offset, flags); if (unlikely (!cache_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_cache (h, count, offset, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool zero_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_zero"); pthread_mutex_lock (&h->lock); debug (h, "enter: count=%" PRIu64 " offset=%" PRIu64 " flags=0x%x", count, offset, flags); if (unlikely (!zero_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_zero (h, count, offset, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool block_status_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent_callback, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_block_status"); pthread_mutex_lock (&h->lock); debug (h, "enter: count=%" PRIu64 " offset=%" PRIu64 " extent=<fun> flags=0x%x", count, offset, flags); if (unlikely (!block_status_in_permitted_state (h))) { ret = -1; goto out; } if (CALLBACK_IS_NULL (extent_callback)) { set_error (EFAULT, "%s cannot be NULL", "extent"); ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_block_status (h, count, offset, extent_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_poll (struct nbd_handle *h, int timeout) { int ret; nbd_internal_set_error_context ("nbd_poll"); pthread_mutex_lock (&h->lock); debug (h, "enter: timeout=%d", timeout); ret = nbd_unlocked_poll (h, timeout); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_connect_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_aio_connect (struct nbd_handle *h, const struct sockaddr *addr, socklen_t addrlen) { int ret; nbd_internal_set_error_context ("nbd_aio_connect"); pthread_mutex_lock (&h->lock); debug (h, "enter: addr=<sockaddr> addrlen=%d", (int) addrlen); if (unlikely (!aio_connect_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_aio_connect (h, addr, addrlen); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_connect_uri_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_aio_connect_uri (struct nbd_handle *h, const char *uri) { int ret; nbd_internal_set_error_context ("nbd_aio_connect_uri"); pthread_mutex_lock (&h->lock); debug (h, "enter: uri=\"%s\"", uri ? uri : "NULL"); if (unlikely (!aio_connect_uri_in_permitted_state (h))) { ret = -1; goto out; } if (uri == NULL) { set_error (EFAULT, "%s cannot be NULL", "uri"); ret = -1; goto out; } ret = nbd_unlocked_aio_connect_uri (h, uri); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_connect_unix_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_aio_connect_unix (struct nbd_handle *h, const char *unixsocket) { int ret; nbd_internal_set_error_context ("nbd_aio_connect_unix"); pthread_mutex_lock (&h->lock); debug (h, "enter: unixsocket=\"%s\"", unixsocket ? unixsocket : "NULL"); if (unlikely (!aio_connect_unix_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_aio_connect_unix (h, unixsocket); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_connect_vsock_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_aio_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port) { int ret; nbd_internal_set_error_context ("nbd_aio_connect_vsock"); pthread_mutex_lock (&h->lock); debug (h, "enter: cid=%" PRIu32 " port=%" PRIu32 "", cid, port); if (unlikely (!aio_connect_vsock_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_aio_connect_vsock (h, cid, port); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_connect_tcp_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_aio_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port) { int ret; nbd_internal_set_error_context ("nbd_aio_connect_tcp"); pthread_mutex_lock (&h->lock); debug (h, "enter: hostname=\"%s\" port=\"%s\"", hostname ? hostname : "NULL", port ? port : "NULL"); if (unlikely (!aio_connect_tcp_in_permitted_state (h))) { ret = -1; goto out; } if (hostname == NULL) { set_error (EFAULT, "%s cannot be NULL", "hostname"); ret = -1; goto out; } if (port == NULL) { set_error (EFAULT, "%s cannot be NULL", "port"); ret = -1; goto out; } ret = nbd_unlocked_aio_connect_tcp (h, hostname, port); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_connect_socket_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_aio_connect_socket (struct nbd_handle *h, int sock) { int ret; nbd_internal_set_error_context ("nbd_aio_connect_socket"); pthread_mutex_lock (&h->lock); debug (h, "enter: sock=%d", sock); if (unlikely (!aio_connect_socket_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_aio_connect_socket (h, sock); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_connect_command_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_aio_connect_command (struct nbd_handle *h, char **argv) { int ret; nbd_internal_set_error_context ("nbd_aio_connect_command"); pthread_mutex_lock (&h->lock); debug (h, "enter: argv=<list>"); if (unlikely (!aio_connect_command_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_aio_connect_command (h, argv); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_connect_systemd_socket_activation_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_created (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "newly created"); return false; } return true; } int nbd_aio_connect_systemd_socket_activation (struct nbd_handle *h, char **argv) { int ret; nbd_internal_set_error_context ("nbd_aio_connect_systemd_socket_activation"); pthread_mutex_lock (&h->lock); debug (h, "enter: argv=<list>"); if (unlikely (!aio_connect_systemd_socket_activation_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_aio_connect_systemd_socket_activation (h, argv); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_pread_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int64_t nbd_aio_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags) { int64_t ret; nbd_internal_set_error_context ("nbd_aio_pread"); pthread_mutex_lock (&h->lock); debug (h, "enter: buf=<buf> count=%zu offset=%" PRIu64 " completion=%s flags=0x%x", count, offset, CALLBACK_IS_NULL (completion_callback) ? "<fun>" : "NULL", flags); if (unlikely (!aio_pread_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_aio_pread (h, buf, count, offset, completion_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_pread_structured_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int64_t nbd_aio_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk_callback, nbd_completion_callback completion_callback, uint32_t flags) { int64_t ret; nbd_internal_set_error_context ("nbd_aio_pread_structured"); pthread_mutex_lock (&h->lock); debug (h, "enter: buf=<buf> count=%zu offset=%" PRIu64 " chunk=<fun> completion=%s flags=0x%x", count, offset, CALLBACK_IS_NULL (completion_callback) ? "<fun>" : "NULL", flags); if (unlikely (!aio_pread_structured_in_permitted_state (h))) { ret = -1; goto out; } if (CALLBACK_IS_NULL (chunk_callback)) { set_error (EFAULT, "%s cannot be NULL", "chunk"); ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_aio_pread_structured (h, buf, count, offset, chunk_callback, completion_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_pwrite_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int64_t nbd_aio_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags) { int64_t ret; nbd_internal_set_error_context ("nbd_aio_pwrite"); pthread_mutex_lock (&h->lock); debug (h, "enter: buf=<buf> count=%zu offset=%" PRIu64 " completion=%s flags=0x%x", count, offset, CALLBACK_IS_NULL (completion_callback) ? "<fun>" : "NULL", flags); if (unlikely (!aio_pwrite_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_aio_pwrite (h, buf, count, offset, completion_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_disconnect_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int nbd_aio_disconnect (struct nbd_handle *h, uint32_t flags) { int ret; nbd_internal_set_error_context ("nbd_aio_disconnect"); pthread_mutex_lock (&h->lock); debug (h, "enter: flags=0x%x", flags); if (unlikely (!aio_disconnect_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_aio_disconnect (h, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_flush_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int64_t nbd_aio_flush (struct nbd_handle *h, nbd_completion_callback completion_callback, uint32_t flags) { int64_t ret; nbd_internal_set_error_context ("nbd_aio_flush"); pthread_mutex_lock (&h->lock); debug (h, "enter: completion=%s flags=0x%x", CALLBACK_IS_NULL (completion_callback) ? "<fun>" : "NULL", flags); if (unlikely (!aio_flush_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_aio_flush (h, completion_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_trim_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int64_t nbd_aio_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags) { int64_t ret; nbd_internal_set_error_context ("nbd_aio_trim"); pthread_mutex_lock (&h->lock); debug (h, "enter: count=%" PRIu64 " offset=%" PRIu64 " completion=%s flags=0x%x", count, offset, CALLBACK_IS_NULL (completion_callback) ? "<fun>" : "NULL", flags); if (unlikely (!aio_trim_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_aio_trim (h, count, offset, completion_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_cache_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int64_t nbd_aio_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags) { int64_t ret; nbd_internal_set_error_context ("nbd_aio_cache"); pthread_mutex_lock (&h->lock); debug (h, "enter: count=%" PRIu64 " offset=%" PRIu64 " completion=%s flags=0x%x", count, offset, CALLBACK_IS_NULL (completion_callback) ? "<fun>" : "NULL", flags); if (unlikely (!aio_cache_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_aio_cache (h, count, offset, completion_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_zero_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int64_t nbd_aio_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags) { int64_t ret; nbd_internal_set_error_context ("nbd_aio_zero"); pthread_mutex_lock (&h->lock); debug (h, "enter: count=%" PRIu64 " offset=%" PRIu64 " completion=%s flags=0x%x", count, offset, CALLBACK_IS_NULL (completion_callback) ? "<fun>" : "NULL", flags); if (unlikely (!aio_zero_in_permitted_state (h))) { ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_aio_zero (h, count, offset, completion_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_block_status_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server"); return false; } return true; } int64_t nbd_aio_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent_callback, nbd_completion_callback completion_callback, uint32_t flags) { int64_t ret; nbd_internal_set_error_context ("nbd_aio_block_status"); pthread_mutex_lock (&h->lock); debug (h, "enter: count=%" PRIu64 " offset=%" PRIu64 " extent=<fun> completion=%s flags=0x%x", count, offset, CALLBACK_IS_NULL (completion_callback) ? "<fun>" : "NULL", flags); if (unlikely (!aio_block_status_in_permitted_state (h))) { ret = -1; goto out; } if (CALLBACK_IS_NULL (extent_callback)) { set_error (EFAULT, "%s cannot be NULL", "extent"); ret = -1; goto out; } if (unlikely ((flags & ~31) != 0)) { set_error (EINVAL, "%s: invalid value for flag: %d", "flags", flags); ret = -1; goto out; } ret = nbd_unlocked_aio_block_status (h, count, offset, extent_callback, completion_callback, flags); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_aio_get_fd (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_aio_get_fd"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_aio_get_fd (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } unsigned nbd_aio_get_direction (struct nbd_handle *h) { unsigned ret; /* This function must not call set_error. */ ret = nbd_unlocked_aio_get_direction (h); return ret; } int nbd_aio_notify_read (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_aio_notify_read"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_aio_notify_read (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_aio_notify_write (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_aio_notify_write"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_aio_notify_write (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_aio_is_created (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ ret = nbd_unlocked_aio_is_created (h); return ret; } int nbd_aio_is_connecting (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ ret = nbd_unlocked_aio_is_connecting (h); return ret; } int nbd_aio_is_ready (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ ret = nbd_unlocked_aio_is_ready (h); return ret; } int nbd_aio_is_processing (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ ret = nbd_unlocked_aio_is_processing (h); return ret; } int nbd_aio_is_dead (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ ret = nbd_unlocked_aio_is_dead (h); return ret; } int nbd_aio_is_closed (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ ret = nbd_unlocked_aio_is_closed (h); return ret; } int nbd_aio_command_completed (struct nbd_handle *h, int64_t cookie) { int ret; nbd_internal_set_error_context ("nbd_aio_command_completed"); pthread_mutex_lock (&h->lock); debug (h, "enter: cookie=%" PRIi64 "", cookie); ret = nbd_unlocked_aio_command_completed (h, cookie); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int64_t nbd_aio_peek_command_completed (struct nbd_handle *h) { int64_t ret; nbd_internal_set_error_context ("nbd_aio_peek_command_completed"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_aio_peek_command_completed (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%" PRIi64 "", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } static inline bool aio_in_flight_in_permitted_state (struct nbd_handle *h) { const enum state state = get_public_state (h); if (!(nbd_internal_is_state_ready (state) || nbd_internal_is_state_processing (state) || nbd_internal_is_state_closed (state) || nbd_internal_is_state_dead (state))) { set_error (nbd_internal_is_state_created (state) ? ENOTCONN : EINVAL, "invalid state: %s: the handle must be %s", nbd_internal_state_short_string (state), "connected and finished handshaking with the server, or shut down, or dead"); return false; } return true; } int nbd_aio_in_flight (struct nbd_handle *h) { int ret; nbd_internal_set_error_context ("nbd_aio_in_flight"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); if (unlikely (!aio_in_flight_in_permitted_state (h))) { ret = -1; goto out; } ret = nbd_unlocked_aio_in_flight (h); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } out: if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } const char * nbd_connection_state (struct nbd_handle *h) { const char * ret; nbd_internal_set_error_context ("nbd_connection_state"); pthread_mutex_lock (&h->lock); debug (h, "enter:"); ret = nbd_unlocked_connection_state (h); if_debug (h) { if (ret == NULL) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=\"%s\"", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } const char * nbd_get_package_name (struct nbd_handle *h) { const char * ret; /* This function must not call set_error. */ ret = nbd_unlocked_get_package_name (h); return ret; } const char * nbd_get_version (struct nbd_handle *h) { const char * ret; /* This function must not call set_error. */ ret = nbd_unlocked_get_version (h); return ret; } int nbd_kill_subprocess (struct nbd_handle *h, int signum) { int ret; nbd_internal_set_error_context ("nbd_kill_subprocess"); pthread_mutex_lock (&h->lock); debug (h, "enter: signum=%d", signum); ret = nbd_unlocked_kill_subprocess (h, signum); if_debug (h) { if (ret == -1) debug (h, "leave: error=\"%s\"", nbd_get_error ()); else debug (h, "leave: ret=%d", ret); } if (h->public_state != get_next_state (h)) h->public_state = get_next_state (h); pthread_mutex_unlock (&h->lock); return ret; } int nbd_supports_tls (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ ret = nbd_unlocked_supports_tls (h); return ret; } int nbd_supports_uri (struct nbd_handle *h) { int ret; /* This function must not call set_error. */ ret = nbd_unlocked_supports_uri (h); return ret; } ��������������������������������������������������������������������������������������libnbd-1.2.2/lib/connect.c��������������������������������������������������������������������������0000664�0001750�0001750�00000015454�13552713634�012256� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <errno.h> #include <unistd.h> #include <fcntl.h> #include <netdb.h> #include <netinet/in.h> #include <netinet/tcp.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/un.h> #ifdef HAVE_LINUX_VM_SOCKETS_H #include <linux/vm_sockets.h> #endif #include "internal.h" static int error_unless_ready (struct nbd_handle *h) { if (nbd_internal_is_state_ready (get_next_state (h))) return 0; /* Why did it fail? */ if (nbd_internal_is_state_closed (get_next_state (h))) { set_error (0, "connection is closed"); return -1; } if (nbd_internal_is_state_dead (get_next_state (h))) /* Don't set the error here, keep the error set when * the connection died. */ return -1; /* Should probably never happen. */ set_error (0, "connection in an unexpected state (%s)", nbd_internal_state_short_string (get_next_state (h))); return -1; } int nbd_internal_wait_until_connected (struct nbd_handle *h) { while (nbd_internal_is_state_connecting (get_next_state (h))) { if (nbd_unlocked_poll (h, -1) == -1) return -1; } return error_unless_ready (h); } /* Connect to a Unix domain socket. */ int nbd_unlocked_connect_unix (struct nbd_handle *h, const char *unixsocket) { if (nbd_unlocked_aio_connect_unix (h, unixsocket) == -1) return -1; return nbd_internal_wait_until_connected (h); } /* Connect to a vsock. */ int nbd_unlocked_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port) { if (nbd_unlocked_aio_connect_vsock (h, cid, port) == -1) return -1; return nbd_internal_wait_until_connected (h); } /* Connect to a TCP port. */ int nbd_unlocked_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port) { if (nbd_unlocked_aio_connect_tcp (h, hostname, port) == -1) return -1; return nbd_internal_wait_until_connected (h); } /* Connect to a connected socket. */ int nbd_unlocked_connect_socket (struct nbd_handle *h, int sock) { if (nbd_unlocked_aio_connect_socket (h, sock) == -1) return -1; return nbd_internal_wait_until_connected (h); } /* Connect to a local command. */ int nbd_unlocked_connect_command (struct nbd_handle *h, char **argv) { if (nbd_unlocked_aio_connect_command (h, argv) == -1) return -1; return nbd_internal_wait_until_connected (h); } /* Connect to a local command, use systemd socket activation. */ int nbd_unlocked_connect_systemd_socket_activation (struct nbd_handle *h, char **argv) { if (nbd_unlocked_aio_connect_systemd_socket_activation (h, argv) == -1) return -1; return nbd_internal_wait_until_connected (h); } int nbd_unlocked_aio_connect (struct nbd_handle *h, const struct sockaddr *addr, socklen_t len) { memcpy (&h->connaddr, addr, len); h->connaddrlen = len; return nbd_internal_run (h, cmd_connect_sockaddr); } int nbd_unlocked_aio_connect_unix (struct nbd_handle *h, const char *unixsocket) { struct sockaddr_un sun = { .sun_family = AF_UNIX }; socklen_t len; size_t namelen; namelen = strlen (unixsocket); if (namelen > sizeof sun.sun_path) { set_error (ENAMETOOLONG, "socket name too long: %s", unixsocket); return -1; } memcpy (sun.sun_path, unixsocket, namelen); len = sizeof sun; memcpy (&h->connaddr, &sun, len); h->connaddrlen = len; return nbd_internal_run (h, cmd_connect_sockaddr); } int nbd_unlocked_aio_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port) { #ifdef AF_VSOCK struct sockaddr_vm svm = { .svm_family = AF_VSOCK, .svm_cid = cid, .svm_port = port, }; const socklen_t len = sizeof svm; memcpy (&h->connaddr, &svm, len); h->connaddrlen = len; return nbd_internal_run (h, cmd_connect_sockaddr); #else set_error (ENOTSUP, "AF_VSOCK protocol is not supported"); return -1; #endif } int nbd_unlocked_aio_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port) { if (h->hostname) free (h->hostname); h->hostname = strdup (hostname); if (!h->hostname) { set_error (errno, "strdup"); return -1; } if (h->port) free (h->port); h->port = strdup (port); if (!h->port) { set_error (errno, "strdup"); return -1; } return nbd_internal_run (h, cmd_connect_tcp); } int nbd_unlocked_aio_connect_socket (struct nbd_handle *h, int sock) { int flags; /* Set O_NONBLOCK on the file and FD_CLOEXEC on the file descriptor. * We can't trust that the calling process did either of these. */ flags = fcntl (sock, F_GETFL, 0); if (flags == -1 || fcntl (sock, F_SETFL, flags|O_NONBLOCK) == -1) { set_error (errno, "fcntl: set O_NONBLOCK"); close (sock); return -1; } flags = fcntl (sock, F_GETFD, 0); if (flags == -1 || fcntl (sock, F_SETFD, flags|FD_CLOEXEC) == -1) { set_error (errno, "fcntl: set FD_CLOEXEC"); close (sock); return -1; } h->sock = nbd_internal_socket_create (sock); if (!h->sock) { close (sock); return -1; } /* This jumps straight to %MAGIC.START (to start the handshake) * because the socket is already connected. */ return nbd_internal_run (h, cmd_connect_socket); } int nbd_unlocked_aio_connect_command (struct nbd_handle *h, char **argv) { char **copy; copy = nbd_internal_copy_string_list (argv); if (!copy) { set_error (errno, "copy_string_list"); return -1; } if (h->argv) nbd_internal_free_string_list (h->argv); h->argv = copy; return nbd_internal_run (h, cmd_connect_command); } int nbd_unlocked_aio_connect_systemd_socket_activation (struct nbd_handle *h, char **argv) { char **copy; copy = nbd_internal_copy_string_list (argv); if (!copy) { set_error (errno, "copy_string_list"); return -1; } if (h->argv) nbd_internal_free_string_list (h->argv); h->argv = copy; return nbd_internal_run (h, cmd_connect_sa); } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/crypto.c���������������������������������������������������������������������������0000664�0001750�0001750�00000044034�13571455246�012144� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <string.h> #include <unistd.h> #include <errno.h> #include <assert.h> #ifdef HAVE_GNUTLS #include <gnutls/gnutls.h> #endif #include "internal.h" int nbd_unlocked_set_tls (struct nbd_handle *h, int tls) { #ifdef HAVE_GNUTLS h->tls = tls; return 0; #else /* Don't allow setting this to any non-zero value, but setting it to * 0 (disable TLS) is OK. */ if (tls != 0) { set_error (ENOTSUP, "libnbd was compiled without TLS support"); return -1; } return 0; #endif } /* NB: may_set_error = false. */ int nbd_unlocked_get_tls (struct nbd_handle *h) { return h->tls; } int nbd_unlocked_get_tls_negotiated (struct nbd_handle *h) { return h->tls_negotiated; } int nbd_unlocked_set_tls_certificates (struct nbd_handle *h, const char *dir) { char *new_dir; new_dir = strdup (dir); if (!new_dir) { set_error (errno, "strdup"); return -1; } free (h->tls_certificates); h->tls_certificates = new_dir; return 0; } /* NB: may_set_error = false. */ int nbd_unlocked_set_tls_verify_peer (struct nbd_handle *h, bool verify) { h->tls_verify_peer = verify; return 0; } int nbd_unlocked_get_tls_verify_peer (struct nbd_handle *h) { return h->tls_verify_peer; } int nbd_unlocked_set_tls_username (struct nbd_handle *h, const char *username) { char *new_user; new_user = strdup (username); if (!new_user) { set_error (errno, "strdup"); return -1; } free (h->tls_username); h->tls_username = new_user; return 0; } char * nbd_unlocked_get_tls_username (struct nbd_handle *h) { char *s, *ret; size_t len; if (h->tls_username) { ret = strdup (h->tls_username); if (ret == NULL) { set_error (errno, "strdup"); return NULL; } return ret; } /* Otherwise we return the local login name. Try $LOGNAME first for * two reasons: (1) So the user can override it. (2) Because * getlogin fails with ENXIO if there is no controlling terminal * (which is often the case in test and embedded environments). */ s = getenv ("LOGNAME"); if (s) { ret = strdup (s); if (ret == NULL) { set_error (errno, "strdup"); return NULL; } return ret; } len = 16; ret = NULL; while (ret == NULL) { char *oldret = ret; ret = realloc (oldret, len); if (ret == NULL) { set_error (errno, "realloc"); free (oldret); return NULL; } if (getlogin_r (ret, len) != 0) { if (errno == ERANGE) { /* Try again with a larger buffer. */ len *= 2; continue; } set_error (errno, "getlogin_r"); free (ret); return NULL; } } return ret; } int nbd_unlocked_set_tls_psk_file (struct nbd_handle *h, const char *filename) { char *new_file; new_file = strdup (filename); if (!new_file) { set_error (errno, "strdup"); return -1; } free (h->tls_psk_file); h->tls_psk_file = new_file; return 0; } #ifdef HAVE_GNUTLS static ssize_t tls_recv (struct nbd_handle *h, struct socket *sock, void *buf, size_t len) { ssize_t r; r = gnutls_record_recv (sock->u.tls.session, buf, len); if (r < 0) { if (r == GNUTLS_E_INTERRUPTED || r == GNUTLS_E_AGAIN) { errno = EAGAIN; return -1; } set_error (0, "gnutls_record_recv: %s", gnutls_strerror (r)); errno = EIO; return -1; } return r; } static ssize_t tls_send (struct nbd_handle *h, struct socket *sock, const void *buf, size_t len, int flags) { ssize_t r; r = gnutls_record_send (sock->u.tls.session, buf, len); if (r < 0) { if (r == GNUTLS_E_INTERRUPTED || r == GNUTLS_E_AGAIN) { errno = EAGAIN; return -1; } set_error (0, "gnutls_record_send: %s", gnutls_strerror (r)); errno = EIO; return -1; } return r; } static bool tls_pending (struct socket *sock) { return gnutls_record_check_pending (sock->u.tls.session) > 0; } static int tls_get_fd (struct socket *sock) { return sock->u.tls.oldsock->ops->get_fd (sock->u.tls.oldsock); } /* XXX Calling gnutls_bye is possible, but it may send and receive * data over the wire which would require modifications to the state * machine. So instead we abruptly drop the TLS session. */ static int tls_close (struct socket *sock) { int r; r = sock->u.tls.oldsock->ops->close (sock->u.tls.oldsock); gnutls_deinit (sock->u.tls.session); if (sock->u.tls.pskcreds) gnutls_psk_free_client_credentials (sock->u.tls.pskcreds); if (sock->u.tls.xcreds) gnutls_certificate_free_credentials (sock->u.tls.xcreds); free (sock); return r; } static struct socket_ops crypto_ops = { .recv = tls_recv, .send = tls_send, .pending = tls_pending, .get_fd = tls_get_fd, .close = tls_close, }; /* Look up the user's key in the PSK file. */ static int lookup_key (const char *pskfile, const char *username, gnutls_datum_t *key) { FILE *fp; const size_t ulen = strlen (username); size_t len = 0; ssize_t r; char *line = NULL; fp = fopen (pskfile, "re"); if (fp == NULL) { set_error (errno, "open: %s", pskfile); goto error; } while ((r = getline (&line, &len, fp)) != -1) { if (r > 0 && line[r-1] == '\n') line[--r] = '\0'; if (r > 0 && line[r-1] == '\r') line[--r] = '\0'; if (r > ulen+1 && strncmp (line, username, ulen) == 0 && line[ulen] == ':') { key->data = (unsigned char *) strdup (&line[ulen+1]); if (key->data == NULL) { set_error (errno, "strdup"); goto error; } key->size = r - ulen - 1; break; } } if (ferror (fp)) { set_error (errno, "%s: getline failed", pskfile); goto error; } if (key->data == NULL) { set_error (EINVAL, "%s: username %s was not found in PSK file", pskfile, username); goto error; } fclose (fp); free (line); return 0; error: if (fp) fclose (fp); free (line); return -1; } static gnutls_psk_client_credentials_t set_up_psk_credentials (struct nbd_handle *h, gnutls_session_t session) { int err; const char prio[] = TLS_PRIORITY ":" "+ECDHE-PSK:+DHE-PSK:+PSK"; gnutls_datum_t key = { .data = NULL }; char *username = NULL; gnutls_psk_client_credentials_t ret = NULL; err = gnutls_priority_set_direct (session, prio, NULL); if (err < 0) { set_error (0, "gnutls_priority_set_direct: %s", gnutls_strerror (err)); goto error; } username = nbd_unlocked_get_tls_username (h); if (username == NULL) goto error; if (lookup_key (h->tls_psk_file, username, &key) == -1) goto error; err = gnutls_psk_allocate_client_credentials (&ret); if (err < 0) { set_error (0, "gnutls_psk_allocate_client_credentials: %s", gnutls_strerror (err)); goto error; } err = gnutls_psk_set_client_credentials (ret, username, &key, GNUTLS_PSK_KEY_HEX); if (err < 0) { set_error (0, "gnutls_psk_set_client_credentials: %s", gnutls_strerror (err)); goto error; } err = gnutls_credentials_set (session, GNUTLS_CRD_PSK, ret); if (err < 0) { set_error (0, "gnutls_credentials_set: %s", gnutls_strerror (err)); goto error; } free (username); free (key.data); return ret; error: free (username); free (key.data); if (ret) gnutls_psk_free_client_credentials (ret); return NULL; } static int load_certificates (const char *path, gnutls_certificate_credentials_t *ret) { int err; char *cacert = NULL; char *clientcert = NULL; char *clientkey = NULL; char *cacrl = NULL; if (asprintf (&cacert, "%s/ca-cert.pem", path) == -1) { set_error (errno, "asprintf"); goto error; } /* Only ca-cert.pem must be present. */ if (access (cacert, R_OK) == -1) { free (cacert); return 0; } if (asprintf (&clientcert, "%s/client-cert.pem", path) == -1) { set_error (errno, "asprintf"); goto error; } if (asprintf (&clientkey, "%s/client-key.pem", path) == -1) { set_error (errno, "asprintf"); goto error; } if (asprintf (&cacrl, "%s/ca-crl.pem", path) == -1) { set_error (errno, "asprintf"); goto error; } err = gnutls_certificate_allocate_credentials (ret); if (err < 0) { set_error (0, "gnutls_certificate_allocate_credentials: %s", gnutls_strerror (err)); goto error; } err = gnutls_certificate_set_x509_trust_file (*ret, cacert, GNUTLS_X509_FMT_PEM); if (err < 0) { set_error (0, "gnutls_certificate_set_x509_trust_file: %s: %s", cacert, gnutls_strerror (err)); goto error; } /* Optional for client certification authentication. */ if (access (clientcert, R_OK) == 0 && access (clientkey, R_OK) == 0) { err = gnutls_certificate_set_x509_key_file (*ret, clientcert, clientkey, GNUTLS_X509_FMT_PEM); if (err < 0) { set_error (0, "gnutls_certificate_set_x509_key_file: %s, %s: %s", clientcert, clientkey, gnutls_strerror (err)); goto error; } } if (access (cacrl, R_OK) == 0) { err = gnutls_certificate_set_x509_crl_file (*ret, cacrl, GNUTLS_X509_FMT_PEM); if (err < 0) { set_error (0, "gnutls_certificate_set_x509_crl_file: %s: %s", cacrl, gnutls_strerror (err)); goto error; } } free (cacert); free (clientcert); free (clientkey); free (cacrl); return 0; error: if (*ret) gnutls_certificate_free_credentials (*ret); *ret = NULL; free (cacert); free (clientcert); free (clientkey); free (cacrl); return -1; } static gnutls_certificate_credentials_t set_up_certificate_credentials (struct nbd_handle *h, gnutls_session_t session, bool *is_error) { int err; gnutls_certificate_credentials_t ret = NULL; const char *home = getenv ("HOME"); char *path = NULL; err = gnutls_priority_set_direct (session, TLS_PRIORITY, NULL); if (err < 0) { set_error (0, "gnutls_priority_set_direct: %s", gnutls_strerror (err)); goto error; } /* Try to load the certificates from the directory. */ if (h->tls_certificates) { if (load_certificates (h->tls_certificates, &ret) == -1) goto error; if (ret) goto found_certificates; } else { if (geteuid () != 0 && home != NULL) { if (asprintf (&path, "%s/.pki/%s", home, PACKAGE_NAME) == -1) { set_error (errno, "asprintf"); goto error; } if (load_certificates (path, &ret) == -1) goto error; if (ret) goto found_certificates; free (path); if (asprintf (&path, "%s/.config/pki/%s", home, PACKAGE_NAME) == -1) { set_error (errno, "asprintf"); goto error; } if (load_certificates (path, &ret) == -1) goto error; if (ret) goto found_certificates; } else { /* geteuid () == 0 */ if (load_certificates (sysconfdir "/pki/" PACKAGE_NAME, &ret) == -1) goto error; if (ret) goto found_certificates; } } /* Not found. */ free (path); return NULL; found_certificates: #ifdef HAVE_GNUTLS_SESSION_SET_VERIFY_CERT if (h->hostname && h->tls_verify_peer) gnutls_session_set_verify_cert (session, h->hostname, 0); #else debug (h, "ignoring nbd_set_tls_verify_peer, this requires GnuTLS >= 3.4.6"); #endif err = gnutls_credentials_set (session, GNUTLS_CRD_CERTIFICATE, ret); if (err < 0) { set_error (0, "gnutls_credentials_set: %s", gnutls_strerror (err)); goto error; } free (path); return ret; error: gnutls_certificate_free_credentials (ret); free (path); *is_error = true; return NULL; } static gnutls_certificate_credentials_t set_up_system_CA (struct nbd_handle *h, gnutls_session_t session) { int err; gnutls_certificate_credentials_t ret = NULL; err = gnutls_priority_set_direct (session, TLS_PRIORITY, NULL); if (err < 0) { set_error (0, "gnutls_priority_set_direct: %s", gnutls_strerror (err)); return NULL; } err = gnutls_certificate_allocate_credentials (&ret); if (err < 0) { set_error (0, "gnutls_certificate_allocate_credentials: %s", gnutls_strerror (err)); return NULL; } err = gnutls_certificate_set_x509_system_trust (ret); if (err < 0) { set_error (0, "gnutls_certificate_set_x509_system_trust: %s", gnutls_strerror (err)); gnutls_certificate_free_credentials (ret); return NULL; } err = gnutls_credentials_set (session, GNUTLS_CRD_CERTIFICATE, ret); if (err < 0) { set_error (0, "gnutls_credentials_set: %s", gnutls_strerror (err)); gnutls_certificate_free_credentials (ret); return NULL; } return ret; } /* Called from the state machine after receiving an ACK from * NBD_OPT_STARTTLS when we want to start upgrading the connection to * TLS. Allocate and initialize the TLS session and set up the socket * ops. */ struct socket * nbd_internal_crypto_create_session (struct nbd_handle *h, struct socket *oldsock) { int err; struct socket *sock; gnutls_session_t session; gnutls_psk_client_credentials_t pskcreds = NULL; gnutls_certificate_credentials_t xcreds = NULL; err = gnutls_init (&session, GNUTLS_CLIENT|GNUTLS_NONBLOCK); if (err < 0) { set_error (errno, "gnutls_init: %s", gnutls_strerror (err)); return NULL; } /* If we have the server name, pass SNI. */ if (h->hostname) { err = gnutls_server_name_set (session, GNUTLS_NAME_DNS, h->hostname, strlen (h->hostname)); if (err < 0) { set_error (errno, "gnutls_server_name_set: %s", gnutls_strerror (err)); gnutls_deinit (session); return NULL; } } if (h->tls_psk_file) { pskcreds = set_up_psk_credentials (h, session); if (pskcreds == NULL) { gnutls_deinit (session); return NULL; } } else { bool is_error = false; xcreds = set_up_certificate_credentials (h, session, &is_error); if (xcreds == NULL) { if (!is_error) { /* Fallback case: use system CA. */ xcreds = set_up_system_CA (h, session); if (xcreds == NULL) is_error = true; } } if (is_error) { gnutls_deinit (session); return NULL; } } /* Wrap the underlying socket with GnuTLS. */ gnutls_transport_set_int (session, oldsock->ops->get_fd (oldsock)); gnutls_handshake_set_timeout (session, GNUTLS_DEFAULT_HANDSHAKE_TIMEOUT); sock = malloc (sizeof *sock); if (sock == NULL) { set_error (errno, "malloc"); gnutls_deinit (session); if (pskcreds) gnutls_psk_free_client_credentials (pskcreds); if (xcreds) gnutls_certificate_free_credentials (xcreds); return NULL; } sock->u.tls.session = session; sock->u.tls.pskcreds = pskcreds; sock->u.tls.xcreds = xcreds; sock->u.tls.oldsock = oldsock; sock->ops = &crypto_ops; return sock; } /* Return the read/write direction. */ bool nbd_internal_crypto_is_reading (struct nbd_handle *h) { assert (h->sock->u.tls.session); return gnutls_record_get_direction (h->sock->u.tls.session) == 0; } /* Continue with the TLS handshake. Returns 0 if the handshake * completed successfully, 1 if the handshake is continuing, and -1 if * there was a GnuTLS error. */ int nbd_internal_crypto_handshake (struct nbd_handle *h) { int err; gnutls_handshake_description_t in, out; const gnutls_session_t session = h->sock->u.tls.session; assert (session); err = gnutls_handshake (session); if (err == 0) return 0; if (!gnutls_error_is_fatal (err)) return 1; /* Get some additional debug information about where in the * handshake protocol it failed. You have to look up these codes in * <gnutls/gnutls.h>. */ in = gnutls_handshake_get_last_in (session); out = gnutls_handshake_get_last_out (session); set_error (0, "gnutls_handshake: %s (%d/%d)", gnutls_strerror (err), (int) in, (int) out); return -1; } /* The state machine calls this when TLS has definitely been enabled * on the connection (after the handshake), and we use it to print * useful debugging information. */ void nbd_internal_crypto_debug_tls_enabled (struct nbd_handle *h) { if_debug (h) { const gnutls_session_t session = h->sock->u.tls.session; const gnutls_cipher_algorithm_t cipher = gnutls_cipher_get (session); const gnutls_kx_algorithm_t kx = gnutls_kx_get (session); const gnutls_mac_algorithm_t mac = gnutls_mac_get (session); debug (h, "connection is using TLS: " "cipher %s (%zu bits) key exchange %s mac %s (%zu bits)", gnutls_cipher_get_name (cipher), 8 * gnutls_cipher_get_key_size (cipher), gnutls_kx_get_name (kx), gnutls_mac_get_name (mac), 8 * gnutls_mac_get_key_size (mac) ); } } #else /* !HAVE_GNUTLS */ /* These functions should never be called from the state machine if * !HAVE_GNUTLS. */ struct socket * nbd_internal_crypto_create_session (struct nbd_handle *h, struct socket *oldsock) { abort (); } bool nbd_internal_crypto_is_reading (struct nbd_handle *h) { abort (); } int nbd_internal_crypto_handshake (struct nbd_handle *h) { abort (); } void nbd_internal_crypto_debug_tls_enabled (struct nbd_handle *h) { abort (); } #endif /* !HAVE_GNUTLS */ ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/debug.c����������������������������������������������������������������������������0000664�0001750�0001750�00000004523�13537420607�011704� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdarg.h> #include <errno.h> #include "internal.h" int nbd_unlocked_set_debug (struct nbd_handle *h, bool fl) { h->debug = fl; return 0; } /* NB: may_set_error = false. */ int nbd_unlocked_get_debug (struct nbd_handle *h) { return h->debug; } int nbd_unlocked_clear_debug_callback (struct nbd_handle *h) { FREE_CALLBACK (h->debug_callback); return 0; } int nbd_unlocked_set_debug_callback (struct nbd_handle *h, nbd_debug_callback debug_callback) { /* This can't fail at the moment - see implementation above. */ nbd_unlocked_clear_debug_callback (h); h->debug_callback = debug_callback; return 0; } /* Note this preserves the value of errno, making it safe to use in * all situations. */ void nbd_internal_debug (struct nbd_handle *h, const char *fs, ...) { int err, r; va_list args; char *msg = NULL; const char *context; /* The debug() wrapper checks this, but check it again in case * something calls nbd_internal_debug directly. */ if (!h->debug) return; err = errno; context = nbd_internal_get_error_context (); va_start (args, fs); r = vasprintf (&msg, fs, args); va_end (args); if (r == -1) goto out; if (CALLBACK_IS_NOT_NULL (h->debug_callback)) /* ignore return value */ CALL_CALLBACK (h->debug_callback, context, msg); else fprintf (stderr, "libnbd: debug: %s: %s: %s\n", h->hname, context ? : "unknown", msg); out: free (msg); errno = err; return; } �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/disconnect.c�����������������������������������������������������������������������0000664�0001750�0001750�00000004260�13524776043�012751� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <errno.h> #include <inttypes.h> #include "internal.h" int nbd_unlocked_shutdown (struct nbd_handle *h, uint32_t flags) { if (flags != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } if (!h->disconnect_request && (nbd_internal_is_state_ready (get_next_state (h)) || nbd_internal_is_state_processing (get_next_state (h)))) { if (nbd_unlocked_aio_disconnect (h, 0) == -1) return -1; } while (!nbd_internal_is_state_closed (get_next_state (h)) && !nbd_internal_is_state_dead (get_next_state (h))) { if (nbd_unlocked_poll (h, -1) == -1) return -1; } return 0; } int nbd_unlocked_aio_disconnect (struct nbd_handle *h, uint32_t flags) { int64_t id; if (flags != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } id = nbd_internal_command_common (h, 0, NBD_CMD_DISC, 0, 0, NULL, NULL); if (id == -1) return -1; h->disconnect_request = true; /* As the server does not reply to this command, it is left * in-flight until the cleanup performed when moving to CLOSED or * DEAD. We don't return a handle to the user, and thus also * special case things so that the user cannot request the status of * this command during aio_[peek_]command_completed. */ return 0; } ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/errors.c���������������������������������������������������������������������������0000664�0001750�0001750�00000007252�13524776043�012140� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <pthread.h> #include "internal.h" struct last_error { const char *context; /* Current function context. */ char *error; /* Error message string. */ int errnum; /* errno value (0 if not available). */ }; /* Thread-local storage of the last error. */ static pthread_key_t errors_key; static void free_errors_key (void *vp); /* Constructor/destructor to create the thread-local key when the * library is loaded and unloaded. */ static void errors_init (void) __attribute__((constructor)); static void errors_free (void) __attribute__((destructor)); static void errors_init (void) { int err; err = pthread_key_create (&errors_key, free_errors_key); if (err != 0) { fprintf (stderr, "%s: pthread_key_create: %s\n", "libnbd", strerror (err)); abort (); } } static void errors_free (void) { pthread_key_delete (errors_key); } /* This is called when a thread exits, to free the thread-local data * for that thread. Note that vp != NULL, guaranteed by pthread. */ static void free_errors_key (void *vp) { struct last_error *last_error = vp; free (last_error->error); free (last_error); } static struct last_error * allocate_last_error_on_demand (void) { struct last_error *last_error = pthread_getspecific (errors_key); if (!last_error) { last_error = calloc (1, sizeof *last_error); if (last_error) pthread_setspecific (errors_key, last_error); } return last_error; } /* Called on entry to any API function that can call an error function * (see generator "may_set_error") to reset the error context. The * 'context' parameter is the name of the function. */ void nbd_internal_set_error_context (const char *context) { struct last_error *last_error = allocate_last_error_on_demand (); if (!last_error) return; last_error->context = context; } void nbd_internal_set_last_error (int errnum, char *error) { struct last_error *last_error = allocate_last_error_on_demand (); if (!last_error) { /* At least we shouldn't lose the error. */ perror ("nbd_internal_set_last_error: calloc"); fprintf (stderr, "nbd_internal_set_last_error: lost error: %s (%d)\n", error, errnum); return; } free (last_error->error); last_error->error = error; last_error->errnum = errnum; } const char * nbd_internal_get_error_context (void) { struct last_error *last_error = allocate_last_error_on_demand (); return last_error ? last_error->context : NULL; } const char * nbd_get_error (void) { struct last_error *last_error = pthread_getspecific (errors_key); if (!last_error) return NULL; return last_error->error; } int nbd_get_errno (void) { struct last_error *last_error = pthread_getspecific (errors_key); if (!last_error) return 0; return last_error->errnum; } ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/flags.c����������������������������������������������������������������������������0000664�0001750�0001750�00000007476�13534415604�011722� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <inttypes.h> #include <errno.h> #include "internal.h" /* Set the export size and eflags on the handle, validating them. * This is called from the state machine when either the newstyle or * oldstyle negotiation reaches the point that these are available. */ int nbd_internal_set_size_and_flags (struct nbd_handle *h, uint64_t exportsize, uint16_t eflags) { debug (h, "exportsize: %" PRIu64 " eflags: 0x%" PRIx16, exportsize, eflags); if (eflags == 0) { set_error (EINVAL, "handshake: invalid eflags == 0 from server"); return -1; } if (eflags & NBD_FLAG_SEND_DF && !h->structured_replies) { debug (h, "server lacks structured replies, ignoring claim of df"); eflags &= ~NBD_FLAG_SEND_DF; } if (eflags & NBD_FLAG_SEND_FAST_ZERO && !(eflags & NBD_FLAG_SEND_WRITE_ZEROES)) { debug (h, "server lacks write zeroes, ignoring claim of fast zero"); eflags &= ~NBD_FLAG_SEND_FAST_ZERO; } h->exportsize = exportsize; h->eflags = eflags; return 0; } static int get_flag (struct nbd_handle *h, uint16_t flag) { if (h->eflags == 0) { set_error (EINVAL, "server has not returned export flags, " "you need to connect to the server first"); return -1; } return (h->eflags & flag) != 0; } int nbd_unlocked_is_read_only (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_READ_ONLY); } int nbd_unlocked_can_flush (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_SEND_FLUSH); } int nbd_unlocked_can_fua (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_SEND_FUA); } int nbd_unlocked_is_rotational (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_ROTATIONAL); } int nbd_unlocked_can_trim (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_SEND_TRIM); } int nbd_unlocked_can_zero (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_SEND_WRITE_ZEROES); } int nbd_unlocked_can_fast_zero (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_SEND_FAST_ZERO); } int nbd_unlocked_can_df (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_SEND_DF); } int nbd_unlocked_can_multi_conn (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_CAN_MULTI_CONN); } int nbd_unlocked_can_cache (struct nbd_handle *h) { return get_flag (h, NBD_FLAG_SEND_CACHE); } int nbd_unlocked_can_meta_context (struct nbd_handle *h, const char *name) { struct meta_context *meta_context; for (meta_context = h->meta_contexts; meta_context; meta_context = meta_context->next) if (strcmp (meta_context->name, name) == 0) return 1; return 0; } int64_t nbd_unlocked_get_size (struct nbd_handle *h) { /* exportsize is only valid when we've read both the eflags and the * exportsize. See comment in lib/internal.h. */ if (h->eflags == 0) { set_error (EINVAL, "server has not returned export size, " "you need to connect to the server first"); return -1; } return h->exportsize; } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/handle.c���������������������������������������������������������������������������0000664�0001750�0001750�00000017576�13562557674�012102� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> #include <signal.h> #include <assert.h> #include <netdb.h> #include <sys/types.h> #include <sys/wait.h> #include "internal.h" static void free_cmd_list (struct command *list) { struct command *cmd, *cmd_next; for (cmd = list; cmd != NULL; cmd = cmd_next) { cmd_next = cmd->next; nbd_internal_retire_and_free_command (cmd); } } struct nbd_handle * nbd_create (void) { static _Atomic int hnums = 1; struct nbd_handle *h; const char *s; nbd_internal_set_error_context ("nbd_create"); h = calloc (1, sizeof *h); if (h == NULL) { set_error (errno, "calloc"); goto error1; } if (asprintf (&h->hname, "nbd%d", hnums++) == -1) { set_error (errno, "asprintf"); goto error1; } h->unique = 1; h->tls_verify_peer = true; h->request_sr = true; h->uri_allow_transports = (uint32_t) -1; h->uri_allow_tls = LIBNBD_TLS_ALLOW; h->uri_allow_local_file = false; h->gflags = (LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE | LIBNBD_HANDSHAKE_FLAG_NO_ZEROES); s = getenv ("LIBNBD_DEBUG"); h->debug = s && strcmp (s, "1") == 0; h->public_state = STATE_START; h->state = STATE_START; h->pid = -1; h->export_name = strdup (""); if (h->export_name == NULL) { set_error (errno, "strdup"); goto error1; } errno = pthread_mutex_init (&h->lock, NULL); if (errno != 0) { set_error (errno, "pthread_mutex_init"); goto error1; } if (nbd_internal_run (h, cmd_create) == -1) goto error2; debug (h, "opening handle"); /*debug (h, "sizeof *h = %zu", sizeof *h);*/ return h; error2: pthread_mutex_destroy (&h->lock); error1: if (h) { free (h->export_name); free (h->hname); free (h); } return NULL; } void nbd_close (struct nbd_handle *h) { struct meta_context *m, *m_next; nbd_internal_set_error_context ("nbd_close"); if (h == NULL) return; debug (h, "closing handle"); /* Free user callbacks first. */ nbd_unlocked_clear_debug_callback (h); free (h->bs_entries); for (m = h->meta_contexts; m != NULL; m = m_next) { m_next = m->next; free (m->name); free (m); } free_cmd_list (h->cmds_to_issue); free_cmd_list (h->cmds_in_flight); free_cmd_list (h->cmds_done); nbd_internal_free_string_list (h->argv); if (h->sa_sockpath) { if (h->pid > 0) kill (h->pid, SIGTERM); unlink (h->sa_sockpath); free (h->sa_sockpath); } if (h->sa_tmpdir) { rmdir (h->sa_tmpdir); free (h->sa_tmpdir); } free (h->hostname); free (h->port); if (h->result) freeaddrinfo (h->result); if (h->sock) h->sock->ops->close (h->sock); if (h->pid > 0) waitpid (h->pid, NULL, 0); free (h->export_name); free (h->tls_certificates); free (h->tls_username); free (h->tls_psk_file); nbd_internal_free_string_list (h->request_meta_contexts); free (h->hname); pthread_mutex_destroy (&h->lock); free (h); } int nbd_unlocked_set_handle_name (struct nbd_handle *h, const char *handle_name) { char *new_name; new_name = strdup (handle_name); if (!new_name) { set_error (errno, "strdup"); return -1; } free (h->hname); h->hname = new_name; return 0; } char * nbd_unlocked_get_handle_name (struct nbd_handle *h) { char *copy = strdup (h->hname); if (!copy) { set_error (errno, "strdup"); return NULL; } return copy; } int nbd_unlocked_set_export_name (struct nbd_handle *h, const char *export_name) { char *new_name; if (strnlen (export_name, NBD_MAX_STRING + 1) > NBD_MAX_STRING) { set_error (ENAMETOOLONG, "export name too long for NBD protocol"); return -1; } new_name = strdup (export_name); if (!new_name) { set_error (errno, "strdup"); return -1; } free (h->export_name); h->export_name = new_name; return 0; } char * nbd_unlocked_get_export_name (struct nbd_handle *h) { char *copy = strdup (h->export_name); if (!copy) { set_error (errno, "strdup"); return NULL; } return copy; } int nbd_unlocked_add_meta_context (struct nbd_handle *h, const char *name) { char *copy; size_t len; char **list; if (strnlen (name, NBD_MAX_STRING + 1) > NBD_MAX_STRING) { set_error (ENAMETOOLONG, "meta context name too long for NBD protocol"); return -1; } copy = strdup (name); if (!copy) { set_error (errno, "strdup"); return -1; } len = h->request_meta_contexts == NULL ? 0 : nbd_internal_string_list_length (h->request_meta_contexts); list = realloc (h->request_meta_contexts, sizeof (char *) * (len+2 /* + new entry + NULL */)); if (list == NULL) { free (copy); set_error (errno, "realloc"); return -1; } h->request_meta_contexts = list; list[len] = copy; list[len+1] = NULL; return 0; } int nbd_unlocked_set_request_structured_replies (struct nbd_handle *h, bool request) { h->request_sr = request; return 0; } /* NB: may_set_error = false. */ int nbd_unlocked_get_request_structured_replies (struct nbd_handle *h) { return h->request_sr; } int nbd_unlocked_get_structured_replies_negotiated (struct nbd_handle *h) { return h->structured_replies; } int nbd_unlocked_set_handshake_flags (struct nbd_handle *h, uint32_t flags) { /* The generator already ensured flags was in range. */ h->gflags = flags; return 0; } /* NB: may_set_error = false. */ uint32_t nbd_unlocked_get_handshake_flags (struct nbd_handle *h) { return h->gflags; } const char * nbd_unlocked_get_package_name (struct nbd_handle *h) { return PACKAGE_NAME; } const char * nbd_unlocked_get_version (struct nbd_handle *h) { return PACKAGE_VERSION; } int nbd_unlocked_kill_subprocess (struct nbd_handle *h, int signum) { if (h->pid == -1) { set_error (ESRCH, "no subprocess exists"); return -1; } assert (h->pid > 0); if (signum == 0) signum = SIGTERM; if (signum < 0) { set_error (EINVAL, "invalid signal number: %d", signum); return -1; } if (kill (h->pid, signum) == -1) { set_error (errno, "kill"); return -1; } return 0; } /* NB: is_locked = false, may_set_error = false. */ int nbd_unlocked_supports_tls (struct nbd_handle *h) { #ifdef HAVE_GNUTLS return 1; #else return 0; #endif } /* NB: is_locked = false, may_set_error = false. */ int nbd_unlocked_supports_uri (struct nbd_handle *h) { #ifdef HAVE_LIBXML2 return 1; #else return 0; #endif } const char * nbd_unlocked_get_protocol (struct nbd_handle *h) { /* I believe that if we reach the Connected or Closed permitted * states, then the state machine must have set h->protocol. So if * this assertion is hit then it indicates a bug in libnbd. */ assert (h->protocol); return h->protocol; } int nbd_unlocked_set_uri_allow_transports (struct nbd_handle *h, uint32_t mask) { h->uri_allow_transports = mask; return 0; } int nbd_unlocked_set_uri_allow_tls (struct nbd_handle *h, int tls) { h->uri_allow_tls = tls; return 0; } int nbd_unlocked_set_uri_allow_local_file (struct nbd_handle *h, bool allow) { h->uri_allow_local_file = allow; return 0; } ����������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/internal.h�������������������������������������������������������������������������0000664�0001750�0001750�00000034256�13560112416�012435� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbd client library in userspace: internal definitions * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef LIBNBD_INTERNAL_H #define LIBNBD_INTERNAL_H #ifdef HAVE_STDATOMIC_H #include <stdatomic.h> #else /* Rely on ints being atomic enough on the platform. */ #define _Atomic /**/ #endif #include <stdbool.h> #include <string.h> #include <netdb.h> #include <sys/types.h> #include <pthread.h> #include "libnbd.h" #include "nbd-protocol.h" #include "byte-swapping.h" #include "states.h" #include "unlocked.h" /* Define unlikely macro, but only for GCC. These are used to move * debug and error handling code out of hot paths, making the hot path * into common functions use less instruction cache. */ #if defined(__GNUC__) #define unlikely(x) __builtin_expect (!!(x), 0) #define if_debug(h) if (unlikely ((h)->debug)) #else #define unlikely(x) (x) #define if_debug(h) if ((h)->debug) #endif /* MSG_MORE is an optimization. If not present, ignore it. */ #ifndef MSG_MORE #define MSG_MORE 0 #endif /* XXX This is the same as nbdkit, but probably it should be detected * from the server (NBD_INFO_BLOCK_SIZE) or made configurable. */ #define MAX_REQUEST_SIZE (64 * 1024 * 1024) struct meta_context; struct socket; struct command; struct nbd_handle { /* Unique name assigned to this handle for debug messages * (to avoid having to print actual pointers). */ char *hname; /* Lock protecting concurrent access to the handle. */ pthread_mutex_t lock; char *export_name; /* Export name, never NULL. */ /* TLS settings. */ int tls; /* 0 = disable, 1 = enable, 2 = require */ char *tls_certificates; /* Certs dir, NULL = use default path */ bool tls_verify_peer; /* Verify the peer certificate. */ char *tls_username; /* Username, NULL = use current username */ char *tls_psk_file; /* PSK filename, NULL = no PSK */ /* Desired metadata contexts. */ bool request_sr; char **request_meta_contexts; /* Allowed in URIs, see lib/uri.c. */ uint32_t uri_allow_transports; int uri_allow_tls; bool uri_allow_local_file; /* Global flags from the server. */ uint16_t gflags; /* Export size and per-export flags, received during handshake. NB: * These are *both* *only* valid if eflags != 0. This is because * all servers should set NBD_FLAG_HAS_FLAGS, so eflags should * always be != 0, and we set both fields at the same time. */ uint64_t exportsize; uint16_t eflags; /* Flags set by the state machine to tell what protocol and whether * TLS was negotiated. */ const char *protocol; bool tls_negotiated; int64_t unique; /* Used for generating cookie numbers. */ /* For debugging. */ bool debug; nbd_debug_callback debug_callback; /* State machine. * * The actual current state is ‘state’. ‘public_state’ is updated * before we release the lock. * * Note don't access these fields directly, use the SET_NEXT_STATE * macro in generator/states* code, or the set_next_state, * get_next_state and get_public_state macros in regular code. */ _Atomic enum state public_state; enum state state; bool structured_replies; /* If we negotiated NBD_OPT_STRUCTURED_REPLY */ /* Linked list of negotiated metadata contexts. */ struct meta_context *meta_contexts; /* The socket or a wrapper if using GnuTLS. */ struct socket *sock; /* Generic way to read into a buffer - set rbuf to point to a * buffer, rlen to the amount of data you expect, and in the state * machine call recv_into_rbuf. */ void *rbuf; size_t rlen; /* As above, but for writing using send_from_wbuf. */ const void *wbuf; size_t wlen; int wflags; /* Static buffer used for short amounts of data, such as handshake * and commands. */ union { struct nbd_old_handshake old_handshake; struct nbd_new_handshake new_handshake; struct nbd_new_option option; struct { struct nbd_fixed_new_option_reply option_reply; union { struct nbd_fixed_new_option_reply_info_export export; struct { struct nbd_fixed_new_option_reply_meta_context context; char str[NBD_MAX_STRING]; } __attribute__((packed)) context; char err_msg[NBD_MAX_STRING]; } payload; } __attribute__((packed)) or; struct nbd_export_name_option_reply export_name_reply; struct nbd_simple_reply simple_reply; struct { struct nbd_structured_reply structured_reply; union { struct nbd_structured_reply_offset_data offset_data; struct nbd_structured_reply_offset_hole offset_hole; struct { struct nbd_structured_reply_error error; char msg[NBD_MAX_STRING]; /* Common to all error types */ uint64_t offset; /* Only used for NBD_REPLY_TYPE_ERROR_OFFSET */ } __attribute__((packed)) error; } payload; } __attribute__((packed)) sr; uint16_t gflags; uint32_t cflags; uint32_t len; uint16_t nrinfos; uint32_t nrqueries; } sbuf; /* Issuing a command must use a buffer separate from sbuf, for the * case when we interrupt a request to service a reply. */ struct nbd_request request; bool in_write_payload; /* When connecting, this stores the socket address. */ struct sockaddr_storage connaddr; socklen_t connaddrlen; /* When connecting to a local command, this points to the argv. A * local copy is taken to simplify callers. The PID is the PID of * the subprocess so we can wait on it when the connection is * closed. */ char **argv; pid_t pid; /* When using systemd socket activation, this directory and socket * must be deleted, and the pid above must be killed. */ char *sa_tmpdir; char *sa_sockpath; /* When connecting to TCP ports, these fields are used. */ char *hostname, *port; struct addrinfo hints; struct addrinfo *result, *rp; int connect_errno; /* When sending metadata contexts, this is used. */ size_t querynum; /* When receiving block status, this is used. */ uint32_t *bs_entries; /* Commands which are waiting to be issued [meaning the request * packet is sent to the server]. This is used as a simple linked * list queue - commands are added to the back, and commands are * issued starting with the one on the front. When commands have * been issued they are moved to cmds_in_flight. */ struct command *cmds_to_issue; struct command *cmds_to_issue_tail; /* Commands which have been issued and are waiting for replies. * Order does not matter here, since the server can reply out-of-order. */ struct command *cmds_in_flight; /* Commands which have received replies, waiting for the main * program to acknowledge them. Maintained as a queue, with new * replies at the back, in case a client uses peek to process * replies in server order. */ struct command *cmds_done; struct command *cmds_done_tail; /* length (cmds_to_issue) + length (cmds_in_flight). */ int in_flight; /* Current command during a REPLY cycle */ struct command *reply_cmd; bool disconnect_request; /* True if we've queued NBD_CMD_DISC */ }; struct meta_context { struct meta_context *next; /* Linked list. */ char *name; /* Name of meta context. */ uint32_t context_id; /* Context ID negotiated with the server. */ }; struct socket_ops { ssize_t (*recv) (struct nbd_handle *h, struct socket *sock, void *buf, size_t len); ssize_t (*send) (struct nbd_handle *h, struct socket *sock, const void *buf, size_t len, int flags); bool (*pending) (struct socket *sock); int (*get_fd) (struct socket *sock); int (*close) (struct socket *sock); }; struct socket { union { int fd; struct { /* These are ‘void *’ so that we don't need to include gnutls * headers from this file. */ void *session; /* really gnutls_session_t */ void *pskcreds; /* really gnutls_psk_client_credentials_t */ void *xcreds; /* really gnutls_certificate_credentials_t */ struct socket *oldsock; } tls; } u; const struct socket_ops *ops; }; struct command_cb { union { nbd_extent_callback extent; nbd_chunk_callback chunk; } fn; nbd_completion_callback completion; }; struct command { struct command *next; uint16_t flags; uint16_t type; uint64_t cookie; uint64_t offset; uint32_t count; void *data; /* Buffer for read/write */ struct command_cb cb; enum state state; /* State to resume with on next POLLIN */ bool data_seen; /* For read, true if at least one data chunk seen */ uint32_t error; /* Local errno value */ }; /* Test if a callback is "null" or not, and set it to null. */ #define CALLBACK_IS_NULL(cb) ((cb).callback == NULL && (cb).free == NULL) #define CALLBACK_IS_NOT_NULL(cb) (! CALLBACK_IS_NULL ((cb))) #define SET_CALLBACK_TO_NULL(cb) ((cb).callback = NULL, (cb).free = NULL) /* Call a callback. */ #define CALL_CALLBACK(cb, ...) \ ((cb).callback != NULL ? (cb).callback ((cb).user_data, ##__VA_ARGS__) : 0) /* Free a callback. */ #define FREE_CALLBACK(cb) \ do { \ if ((cb).free != NULL) \ (cb).free ((cb).user_data); \ SET_CALLBACK_TO_NULL (cb); \ } while (0) /* aio.c */ extern void nbd_internal_retire_and_free_command (struct command *); /* connect.c */ extern int nbd_internal_wait_until_connected (struct nbd_handle *h); /* crypto.c */ extern struct socket *nbd_internal_crypto_create_session (struct nbd_handle *, struct socket *oldsock); extern bool nbd_internal_crypto_is_reading (struct nbd_handle *); extern int nbd_internal_crypto_handshake (struct nbd_handle *); extern void nbd_internal_crypto_debug_tls_enabled (struct nbd_handle *); /* debug.c */ extern void nbd_internal_debug (struct nbd_handle *h, const char *fs, ...); #define debug(h, fs, ...) \ do { \ if_debug ((h)) \ nbd_internal_debug ((h), (fs), ##__VA_ARGS__); \ } while (0) /* errors.c */ extern void nbd_internal_set_error_context (const char *context); extern const char *nbd_internal_get_error_context (void); extern void nbd_internal_set_last_error (int errnum, char *error); #define set_error(errnum, fs, ...) \ do { \ int _e = (errnum); \ const char *_context = \ nbd_internal_get_error_context () ? : "unknown"; \ char *_errp; \ int _r; \ if (_e == 0) \ _r = asprintf (&_errp, "%s: " fs, _context, ##__VA_ARGS__); \ else \ _r = asprintf (&_errp, "%s: " fs ": %s", \ _context, ##__VA_ARGS__, strerror (_e)); \ if (_r >= 0) \ nbd_internal_set_last_error (_e, _errp); \ } while (0) /* flags.c */ extern int nbd_internal_set_size_and_flags (struct nbd_handle *h, uint64_t exportsize, uint16_t eflags); /* is-state.c */ extern bool nbd_internal_is_state_created (enum state state); extern bool nbd_internal_is_state_connecting (enum state state); extern bool nbd_internal_is_state_ready (enum state state); extern bool nbd_internal_is_state_processing (enum state state); extern bool nbd_internal_is_state_dead (enum state state); extern bool nbd_internal_is_state_closed (enum state state); /* protocol.c */ extern int nbd_internal_errno_of_nbd_error (uint32_t error); extern const char *nbd_internal_name_of_nbd_cmd (uint16_t type); /* rw.c */ extern int64_t nbd_internal_command_common (struct nbd_handle *h, uint16_t flags, uint16_t type, uint64_t offset, uint64_t count, void *data, struct command_cb *cb); /* socket.c */ struct socket *nbd_internal_socket_create (int fd); /* states.c */ extern int nbd_internal_run (struct nbd_handle *h, enum external_event ev); extern const char *nbd_internal_state_short_string (enum state state); extern enum state_group nbd_internal_state_group (enum state state); extern enum state_group nbd_internal_state_group_parent (enum state_group group); extern int nbd_internal_aio_get_direction (enum state state); #define set_next_state(h,next_state) ((h)->state) = (next_state) #define get_next_state(h) ((h)->state) #define get_public_state(h) ((h)->public_state) /* utils.c */ extern void nbd_internal_hexdump (const void *data, size_t len, FILE *fp); extern size_t nbd_internal_string_list_length (char **argv); extern char **nbd_internal_copy_string_list (char **argv); extern void nbd_internal_free_string_list (char **argv); extern const char *nbd_internal_fork_safe_itoa (long v, char *buf, size_t len); extern void nbd_internal_fork_safe_perror (const char *s); #endif /* LIBNBD_INTERNAL_H */ ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/is-state.c�������������������������������������������������������������������������0000664�0001750�0001750�00000006752�13524776043�012361� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include "internal.h" /* Internal functions to test state or groups of states. */ bool nbd_internal_is_state_created (enum state state) { return state == STATE_START; } static int is_connecting_group (enum state_group group) { switch (group) { case GROUP_TOP: return 0; case GROUP_CONNECT: case GROUP_CONNECT_TCP: case GROUP_CONNECT_COMMAND: case GROUP_MAGIC: case GROUP_OLDSTYLE: case GROUP_NEWSTYLE: return 1; default: return is_connecting_group (nbd_internal_state_group_parent (group)); } } bool nbd_internal_is_state_connecting (enum state state) { enum state_group group = nbd_internal_state_group (state); return is_connecting_group (group); } bool nbd_internal_is_state_ready (enum state state) { return state == STATE_READY; } static int is_processing_group (enum state_group group) { switch (group) { case GROUP_TOP: return 0; case GROUP_ISSUE_COMMAND: case GROUP_REPLY: return 1; default: return is_processing_group (nbd_internal_state_group_parent (group)); } } bool nbd_internal_is_state_processing (enum state state) { enum state_group group = nbd_internal_state_group (state); return is_processing_group (group); } bool nbd_internal_is_state_dead (enum state state) { return state == STATE_DEAD; } bool nbd_internal_is_state_closed (enum state state) { return state == STATE_CLOSED; } /* The nbd_unlocked_aio_is_* and nbd_unlocked_aio_get_direction calls are * the public APIs for reading the state of the handle. * * They all have: is_locked = false, may_set_error = false. * * They all read the public state, not the real state. Therefore you * SHOULD NOT call these functions from elsewhere in the library (use * nbd_internal_is_* and nbd_internal_aio_get_direction instead). */ int nbd_unlocked_aio_is_created (struct nbd_handle *h) { return nbd_internal_is_state_created (get_public_state (h)); } int nbd_unlocked_aio_is_connecting (struct nbd_handle *h) { return nbd_internal_is_state_connecting (get_public_state (h)); } int nbd_unlocked_aio_is_ready (struct nbd_handle *h) { return nbd_internal_is_state_ready (get_public_state (h)); } int nbd_unlocked_aio_is_processing (struct nbd_handle *h) { return nbd_internal_is_state_processing (get_public_state (h)); } int nbd_unlocked_aio_is_dead (struct nbd_handle *h) { return nbd_internal_is_state_dead (get_public_state (h)); } int nbd_unlocked_aio_is_closed (struct nbd_handle *h) { return nbd_internal_is_state_closed (get_public_state (h)); } unsigned nbd_unlocked_aio_get_direction (struct nbd_handle *h) { return nbd_internal_aio_get_direction (get_public_state (h)); } ����������������������libnbd-1.2.2/lib/nbd-protocol.h���������������������������������������������������������������������0000664�0001750�0001750�00000022326�13543123275�013224� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* nbdkit * Copyright (C) 2013-2019 Red Hat Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * * Neither the name of Red Hat nor the names of its contributors may be * used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef NBD_PROTOCOL_H #define NBD_PROTOCOL_H #include <stdint.h> /* Note that all NBD fields are sent on the wire in network byte * order, so you must use beXXtoh or htobeXX when reading or writing * these structures. */ #if defined(__GNUC__) || defined(__clang__) #define NBD_ATTRIBUTE_PACKED __attribute__((__packed__)) #else #error "Please port to your compiler's notion of a packed struct" #endif #define NBD_MAX_STRING 4096 /* Maximum length of a string field */ /* Old-style handshake. */ struct nbd_old_handshake { uint64_t nbdmagic; /* NBD_MAGIC */ uint64_t version; /* NBD_OLD_VERSION */ uint64_t exportsize; uint16_t gflags; /* global flags */ uint16_t eflags; /* per-export flags */ char zeroes[124]; /* must be sent as zero bytes */ } NBD_ATTRIBUTE_PACKED; #define NBD_MAGIC UINT64_C(0x4e42444d41474943) /* ASCII "NBDMAGIC" */ #define NBD_OLD_VERSION UINT64_C(0x0000420281861253) /* New-style handshake. */ struct nbd_new_handshake { uint64_t nbdmagic; /* NBD_MAGIC */ uint64_t version; /* NBD_NEW_VERSION */ uint16_t gflags; /* global flags */ } NBD_ATTRIBUTE_PACKED; #define NBD_NEW_VERSION UINT64_C(0x49484156454F5054) /* ASCII "IHAVEOPT" */ /* New-style handshake option (sent by the client to us). */ struct nbd_new_option { uint64_t version; /* NBD_NEW_VERSION */ uint32_t option; /* NBD_OPT_* */ uint32_t optlen; /* option data length */ /* option data follows */ } NBD_ATTRIBUTE_PACKED; /* Newstyle handshake OPT_EXPORT_NAME reply message. * Modern clients use NBD_OPT_GO instead of this. */ struct nbd_export_name_option_reply { uint64_t exportsize; /* size of export */ uint16_t eflags; /* per-export flags */ char zeroes[124]; /* optional zeroes, unless NBD_FLAG_NO_ZEROES */ } NBD_ATTRIBUTE_PACKED; /* Fixed newstyle handshake reply message. */ struct nbd_fixed_new_option_reply { uint64_t magic; /* NBD_REP_MAGIC */ uint32_t option; /* option we are replying to */ uint32_t reply; /* NBD_REP_* */ uint32_t replylen; } NBD_ATTRIBUTE_PACKED; #define NBD_REP_MAGIC UINT64_C(0x3e889045565a9) /* Global flags. */ #define NBD_FLAG_FIXED_NEWSTYLE (1 << 0) #define NBD_FLAG_NO_ZEROES (1 << 1) /* Per-export flags. */ #define NBD_FLAG_HAS_FLAGS (1 << 0) #define NBD_FLAG_READ_ONLY (1 << 1) #define NBD_FLAG_SEND_FLUSH (1 << 2) #define NBD_FLAG_SEND_FUA (1 << 3) #define NBD_FLAG_ROTATIONAL (1 << 4) #define NBD_FLAG_SEND_TRIM (1 << 5) #define NBD_FLAG_SEND_WRITE_ZEROES (1 << 6) #define NBD_FLAG_SEND_DF (1 << 7) #define NBD_FLAG_CAN_MULTI_CONN (1 << 8) #define NBD_FLAG_SEND_CACHE (1 << 10) #define NBD_FLAG_SEND_FAST_ZERO (1 << 11) /* NBD options (new style handshake only). */ #define NBD_OPT_EXPORT_NAME 1 #define NBD_OPT_ABORT 2 #define NBD_OPT_LIST 3 #define NBD_OPT_STARTTLS 5 #define NBD_OPT_INFO 6 #define NBD_OPT_GO 7 #define NBD_OPT_STRUCTURED_REPLY 8 #define NBD_OPT_LIST_META_CONTEXT 9 #define NBD_OPT_SET_META_CONTEXT 10 #define NBD_REP_ERR(val) (0x80000000 | (val)) #define NBD_REP_IS_ERR(val) (!!((val) & 0x80000000)) #define NBD_REP_ACK 1 #define NBD_REP_SERVER 2 #define NBD_REP_INFO 3 #define NBD_REP_META_CONTEXT 4 #define NBD_REP_ERR_UNSUP NBD_REP_ERR (1) #define NBD_REP_ERR_POLICY NBD_REP_ERR (2) #define NBD_REP_ERR_INVALID NBD_REP_ERR (3) #define NBD_REP_ERR_PLATFORM NBD_REP_ERR (4) #define NBD_REP_ERR_TLS_REQD NBD_REP_ERR (5) #define NBD_REP_ERR_UNKNOWN NBD_REP_ERR (6) #define NBD_REP_ERR_SHUTDOWN NBD_REP_ERR (7) #define NBD_REP_ERR_BLOCK_SIZE_REQD NBD_REP_ERR (8) #define NBD_REP_ERR_TOO_BIG NBD_REP_ERR (9) #define NBD_INFO_EXPORT 0 #define NBD_INFO_NAME 1 #define NBD_INFO_DESCRIPTION 2 #define NBD_INFO_BLOCK_SIZE 3 /* NBD_INFO_EXPORT reply (follows fixed_new_option_reply). */ struct nbd_fixed_new_option_reply_info_export { uint16_t info; /* NBD_INFO_EXPORT */ uint64_t exportsize; /* size of export */ uint16_t eflags; /* per-export flags */ } NBD_ATTRIBUTE_PACKED; /* NBD_REP_META_CONTEXT reply (follows fixed_new_option_reply). */ struct nbd_fixed_new_option_reply_meta_context { uint32_t context_id; /* metadata context ID */ /* followed by a string */ } NBD_ATTRIBUTE_PACKED; /* NBD_REPLY_TYPE_BLOCK_STATUS block descriptor. */ struct nbd_block_descriptor { uint32_t length; /* length of block */ uint32_t status_flags; /* block type (hole etc) */ } NBD_ATTRIBUTE_PACKED; /* Request (client -> server). */ struct nbd_request { uint32_t magic; /* NBD_REQUEST_MAGIC. */ uint16_t flags; /* Request flags. */ uint16_t type; /* Request type. */ uint64_t handle; /* Opaque handle. */ uint64_t offset; /* Request offset. */ uint32_t count; /* Request length. */ } NBD_ATTRIBUTE_PACKED; /* Simple reply (server -> client). */ struct nbd_simple_reply { uint32_t magic; /* NBD_SIMPLE_REPLY_MAGIC. */ uint32_t error; /* NBD_SUCCESS or one of NBD_E*. */ uint64_t handle; /* Opaque handle. */ } NBD_ATTRIBUTE_PACKED; /* Structured reply (server -> client). */ struct nbd_structured_reply { uint32_t magic; /* NBD_STRUCTURED_REPLY_MAGIC. */ uint16_t flags; /* NBD_REPLY_FLAG_* */ uint16_t type; /* NBD_REPLY_TYPE_* */ uint64_t handle; /* Opaque handle. */ uint32_t length; /* Length of payload which follows. */ } NBD_ATTRIBUTE_PACKED; struct nbd_structured_reply_offset_data { uint64_t offset; /* offset */ /* Followed by data. */ } NBD_ATTRIBUTE_PACKED; struct nbd_structured_reply_offset_hole { uint64_t offset; uint32_t length; /* Length of hole. */ } NBD_ATTRIBUTE_PACKED; struct nbd_structured_reply_error { uint32_t error; /* NBD_E* error number */ uint16_t len; /* Length of human readable error. */ /* Followed by human readable error string, and possibly more structure. */ } NBD_ATTRIBUTE_PACKED; #define NBD_REQUEST_MAGIC 0x25609513 #define NBD_SIMPLE_REPLY_MAGIC 0x67446698 #define NBD_STRUCTURED_REPLY_MAGIC 0x668e33ef /* Structured reply flags. */ #define NBD_REPLY_FLAG_DONE (1<<0) #define NBD_REPLY_TYPE_ERR(val) ((1<<15) | (val)) #define NBD_REPLY_TYPE_IS_ERR(val) (!!((val) & (1<<15))) /* Structured reply types. */ #define NBD_REPLY_TYPE_NONE 0 #define NBD_REPLY_TYPE_OFFSET_DATA 1 #define NBD_REPLY_TYPE_OFFSET_HOLE 2 #define NBD_REPLY_TYPE_BLOCK_STATUS 5 #define NBD_REPLY_TYPE_ERROR NBD_REPLY_TYPE_ERR (1) #define NBD_REPLY_TYPE_ERROR_OFFSET NBD_REPLY_TYPE_ERR (2) /* NBD commands. */ #define NBD_CMD_READ 0 #define NBD_CMD_WRITE 1 #define NBD_CMD_DISC 2 /* Disconnect. */ #define NBD_CMD_FLUSH 3 #define NBD_CMD_TRIM 4 #define NBD_CMD_CACHE 5 #define NBD_CMD_WRITE_ZEROES 6 #define NBD_CMD_BLOCK_STATUS 7 #define NBD_CMD_FLAG_FUA (1<<0) #define NBD_CMD_FLAG_NO_HOLE (1<<1) #define NBD_CMD_FLAG_DF (1<<2) #define NBD_CMD_FLAG_REQ_ONE (1<<3) #define NBD_CMD_FLAG_FAST_ZERO (1<<4) /* NBD error codes. */ #define NBD_SUCCESS 0 #define NBD_EPERM 1 #define NBD_EIO 5 #define NBD_ENOMEM 12 #define NBD_EINVAL 22 #define NBD_ENOSPC 28 #define NBD_EOVERFLOW 75 #define NBD_ENOTSUP 95 #define NBD_ESHUTDOWN 108 #endif /* NBD_PROTOCOL_H */ ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/poll.c�����������������������������������������������������������������������������0000664�0001750�0001750�00000005603�13524776043�011570� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <errno.h> #include <poll.h> #include "internal.h" /* A simple main loop implementation using poll(2). */ int nbd_unlocked_poll (struct nbd_handle *h, int timeout) { struct pollfd fds[1]; int r; /* fd might be negative, and poll will ignore it. */ fds[0].fd = nbd_unlocked_aio_get_fd (h); switch (nbd_internal_aio_get_direction (get_next_state (h))) { case LIBNBD_AIO_DIRECTION_READ: fds[0].events = POLLIN; break; case LIBNBD_AIO_DIRECTION_WRITE: fds[0].events = POLLOUT; break; case LIBNBD_AIO_DIRECTION_BOTH: fds[0].events = POLLIN|POLLOUT; break; default: set_error (EINVAL, "nothing to poll for in state %s", nbd_internal_state_short_string (get_next_state (h))); return -1; } fds[0].revents = 0; debug (h, "poll start: events=%x", fds[0].events); /* Note that it's not safe to release the handle lock here, as it * would allow other threads to close file descriptors which we have * passed to poll. */ r = poll (fds, 1, timeout); debug (h, "poll end: r=%d revents=%x", r, fds[0].revents); if (r == -1) { set_error (errno, "poll"); return -1; } if (r == 0) return 0; /* POLLIN and POLLOUT might both be set. However we shouldn't call * both nbd_aio_notify_read and nbd_aio_notify_write at this time * since the first might change the handle state, making the second * notification invalid. Nothing bad happens by ignoring one of the * notifications since if it's still valid it will be picked up by a * subsequent poll. Prefer notifying on read, since the reply is * for a command older than what we are trying to write. */ r = 0; if ((fds[0].revents & (POLLIN | POLLHUP)) != 0) r = nbd_unlocked_aio_notify_read (h); else if ((fds[0].revents & POLLOUT) != 0) r = nbd_unlocked_aio_notify_write (h); else if ((fds[0].revents & (POLLERR | POLLNVAL)) != 0) { set_error (ENOTCONN, "server closed socket unexpectedly"); return -1; } if (r == -1) return -1; return 1; } �����������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/protocol.c�������������������������������������������������������������������������0000664�0001750�0001750�00000003624�13534415604�012456� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <errno.h> #include "internal.h" int nbd_internal_errno_of_nbd_error (uint32_t error) { switch (error) { case NBD_SUCCESS: return 0; case NBD_EPERM: return EPERM; case NBD_EIO: return EIO; case NBD_ENOMEM: return ENOMEM; case NBD_EINVAL: return EINVAL; case NBD_ENOSPC: return ENOSPC; case NBD_EOVERFLOW: return EOVERFLOW; case NBD_ENOTSUP: return ENOTSUP; case NBD_ESHUTDOWN: return ESHUTDOWN; default: return EINVAL; } } /* XXX In nbdkit this function is generated from the nbd-protocol.h * header file. We should unify this across the two programs. */ const char * nbd_internal_name_of_nbd_cmd (uint16_t type) { switch (type) { case NBD_CMD_READ: return "read"; case NBD_CMD_WRITE: return "write"; case NBD_CMD_DISC: return "disconnect"; case NBD_CMD_FLUSH: return "flush"; case NBD_CMD_TRIM: return "trim"; case NBD_CMD_CACHE: return "cache"; case NBD_CMD_WRITE_ZEROES: return "write-zeroes"; case NBD_CMD_BLOCK_STATUS: return "block-status"; default: return "UNKNOWN!"; } } ������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/rw.c�������������������������������������������������������������������������������0000664�0001750�0001750�00000035142�13534415604�011245� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <inttypes.h> #include <errno.h> #include <assert.h> #include <limits.h> #include "internal.h" static int wait_for_command (struct nbd_handle *h, int64_t cookie) { int r; while ((r = nbd_unlocked_aio_command_completed (h, cookie)) == 0) { if (nbd_unlocked_poll (h, -1) == -1) return -1; } return r == -1 ? -1 : 0; } /* Issue a read command and wait for the reply. */ int nbd_unlocked_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, uint32_t flags) { int64_t cookie; cookie = nbd_unlocked_aio_pread (h, buf, count, offset, NBD_NULL_COMPLETION, flags); if (cookie == -1) return -1; return wait_for_command (h, cookie); } /* Issue a read command with callbacks and wait for the reply. */ int nbd_unlocked_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk, uint32_t flags) { int64_t cookie; cookie = nbd_unlocked_aio_pread_structured (h, buf, count, offset, chunk, NBD_NULL_COMPLETION, flags); if (cookie == -1) return -1; return wait_for_command (h, cookie); } /* Issue a write command and wait for the reply. */ int nbd_unlocked_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, uint32_t flags) { int64_t cookie; cookie = nbd_unlocked_aio_pwrite (h, buf, count, offset, NBD_NULL_COMPLETION, flags); if (cookie == -1) return -1; return wait_for_command (h, cookie); } /* Issue a flush command and wait for the reply. */ int nbd_unlocked_flush (struct nbd_handle *h, uint32_t flags) { int64_t cookie; cookie = nbd_unlocked_aio_flush (h, NBD_NULL_COMPLETION, flags); if (cookie == -1) return -1; return wait_for_command (h, cookie); } /* Issue a trim command and wait for the reply. */ int nbd_unlocked_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags) { int64_t cookie; cookie = nbd_unlocked_aio_trim (h, count, offset, NBD_NULL_COMPLETION, flags); if (cookie == -1) return -1; return wait_for_command (h, cookie); } /* Issue a cache command and wait for the reply. */ int nbd_unlocked_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags) { int64_t cookie; cookie = nbd_unlocked_aio_cache (h, count, offset, NBD_NULL_COMPLETION, flags); if (cookie == -1) return -1; return wait_for_command (h, cookie); } /* Issue a zero command and wait for the reply. */ int nbd_unlocked_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags) { int64_t cookie; cookie = nbd_unlocked_aio_zero (h, count, offset, NBD_NULL_COMPLETION, flags); if (cookie == -1) return -1; return wait_for_command (h, cookie); } /* Issue a block status command and wait for the reply. */ int nbd_unlocked_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent, uint32_t flags) { int64_t cookie; cookie = nbd_unlocked_aio_block_status (h, count, offset, extent, NBD_NULL_COMPLETION, flags); if (cookie == -1) return -1; return wait_for_command (h, cookie); } int64_t nbd_internal_command_common (struct nbd_handle *h, uint16_t flags, uint16_t type, uint64_t offset, uint64_t count, void *data, struct command_cb *cb) { struct command *cmd; if (h->disconnect_request) { set_error (EINVAL, "cannot request more commands after NBD_CMD_DISC"); return -1; } if (h->in_flight == INT_MAX) { set_error (ENOMEM, "too many commands already in flight"); return -1; } switch (type) { /* Commands which send or receive data are limited to MAX_REQUEST_SIZE. */ case NBD_CMD_READ: case NBD_CMD_WRITE: if (count > MAX_REQUEST_SIZE) { set_error (ERANGE, "request too large: maximum request size is %d", MAX_REQUEST_SIZE); return -1; } break; /* Other commands are currently limited by the 32 bit field in the * command structure on the wire, but in future we hope to support * 64 bit values here with a change to the NBD protocol which is * being discussed upstream. */ default: if (count > UINT32_MAX) { set_error (ERANGE, "request too large: maximum request size is %" PRIu32, UINT32_MAX); return -1; } break; } cmd = calloc (1, sizeof *cmd); if (cmd == NULL) { set_error (errno, "calloc"); return -1; } cmd->flags = flags; cmd->type = type; cmd->cookie = h->unique++; cmd->offset = offset; cmd->count = count; cmd->data = data; if (cb) cmd->cb = *cb; /* If structured replies were negotiated then we trust the server to * send back sufficient data to cover the whole buffer. It's tricky * to check this, so an easier thing is simply to zero the buffer * ahead of time which avoids any security problems. I measured the * overhead of this and for non-TLS there is no measurable overhead * in the highly intensive loopback case. For TLS we get a * performance gain, go figure. */ if (h->structured_replies && cmd->data && type == NBD_CMD_READ) memset (cmd->data, 0, cmd->count); /* Add the command to the end of the queue. Kick the state machine * if there is no other command being processed, otherwise, it will * be handled automatically on a future cycle around to READY. * Beyond this point, we have to return a cookie to the user, since * we are queuing the command, even if kicking the state machine * detects a failure. Not reporting a state machine failure here is * okay - any caller of an async command will be calling more API to * await results, and will eventually learn that the machine has * moved on to DEAD at that time. */ h->in_flight++; if (h->cmds_to_issue != NULL) { assert (nbd_internal_is_state_processing (get_next_state (h))); h->cmds_to_issue_tail = h->cmds_to_issue_tail->next = cmd; } else { assert (h->cmds_to_issue_tail == NULL); h->cmds_to_issue = h->cmds_to_issue_tail = cmd; if (nbd_internal_is_state_ready (get_next_state (h)) && nbd_internal_run (h, cmd_issue) == -1) debug (h, "command queued, ignoring state machine failure"); } return cmd->cookie; } int64_t nbd_unlocked_aio_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_completion_callback completion, uint32_t flags) { struct command_cb cb = { .completion = completion }; /* We could silently accept flag DF, but it really only makes sense * with callbacks, because otherwise there is no observable change * except that the server may fail where it would otherwise succeed. */ if (flags != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } return nbd_internal_command_common (h, 0, NBD_CMD_READ, offset, count, buf, &cb); } int64_t nbd_unlocked_aio_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk, nbd_completion_callback completion, uint32_t flags) { struct command_cb cb = { .fn.chunk = chunk, .completion = completion }; if ((flags & ~LIBNBD_CMD_FLAG_DF) != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } if ((flags & LIBNBD_CMD_FLAG_DF) != 0 && nbd_unlocked_can_df (h) != 1) { set_error (EINVAL, "server does not support the DF flag"); return -1; } return nbd_internal_command_common (h, flags, NBD_CMD_READ, offset, count, buf, &cb); } int64_t nbd_unlocked_aio_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, nbd_completion_callback completion, uint32_t flags) { struct command_cb cb = { .completion = completion }; if (nbd_unlocked_is_read_only (h) == 1) { set_error (EINVAL, "server does not support write operations"); return -1; } if ((flags & ~LIBNBD_CMD_FLAG_FUA) != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } if ((flags & LIBNBD_CMD_FLAG_FUA) != 0 && nbd_unlocked_can_fua (h) != 1) { set_error (EINVAL, "server does not support the FUA flag"); return -1; } return nbd_internal_command_common (h, flags, NBD_CMD_WRITE, offset, count, (void *) buf, &cb); } int64_t nbd_unlocked_aio_flush (struct nbd_handle *h, nbd_completion_callback completion, uint32_t flags) { struct command_cb cb = { .completion = completion }; if (nbd_unlocked_can_flush (h) != 1) { set_error (EINVAL, "server does not support flush operations"); return -1; } if (flags != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } return nbd_internal_command_common (h, 0, NBD_CMD_FLUSH, 0, 0, NULL, &cb); } int64_t nbd_unlocked_aio_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion, uint32_t flags) { struct command_cb cb = { .completion = completion }; if (nbd_unlocked_is_read_only (h) == 1) { set_error (EINVAL, "server does not support write operations"); return -1; } if ((flags & ~LIBNBD_CMD_FLAG_FUA) != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } if ((flags & LIBNBD_CMD_FLAG_FUA) != 0 && nbd_unlocked_can_fua (h) != 1) { set_error (EINVAL, "server does not support the FUA flag"); return -1; } if (count == 0) { /* NBD protocol forbids this. */ set_error (EINVAL, "count cannot be 0"); return -1; } return nbd_internal_command_common (h, flags, NBD_CMD_TRIM, offset, count, NULL, &cb); } int64_t nbd_unlocked_aio_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion, uint32_t flags) { struct command_cb cb = { .completion = completion }; /* Actually according to the NBD protocol document, servers do exist * that support NBD_CMD_CACHE but don't advertise the * NBD_FLAG_SEND_CACHE bit, but we ignore those. */ if (nbd_unlocked_can_cache (h) != 1) { set_error (EINVAL, "server does not support cache operations"); return -1; } if (flags != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } return nbd_internal_command_common (h, 0, NBD_CMD_CACHE, offset, count, NULL, &cb); } int64_t nbd_unlocked_aio_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion, uint32_t flags) { struct command_cb cb = { .completion = completion }; if (nbd_unlocked_is_read_only (h) == 1) { set_error (EINVAL, "server does not support write operations"); return -1; } if ((flags & ~(LIBNBD_CMD_FLAG_FUA | LIBNBD_CMD_FLAG_NO_HOLE | LIBNBD_CMD_FLAG_FAST_ZERO)) != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } if ((flags & LIBNBD_CMD_FLAG_FUA) != 0 && nbd_unlocked_can_fua (h) != 1) { set_error (EINVAL, "server does not support the FUA flag"); return -1; } if ((flags & LIBNBD_CMD_FLAG_FAST_ZERO) != 0 && nbd_unlocked_can_fast_zero (h) != 1) { set_error (EINVAL, "server does not support the fast zero flag"); return -1; } if (count == 0) { /* NBD protocol forbids this. */ set_error (EINVAL, "count cannot be 0"); return -1; } return nbd_internal_command_common (h, flags, NBD_CMD_WRITE_ZEROES, offset, count, NULL, &cb); } int64_t nbd_unlocked_aio_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent, nbd_completion_callback completion, uint32_t flags) { struct command_cb cb = { .fn.extent = extent, .completion = completion }; if (!h->structured_replies) { set_error (ENOTSUP, "server does not support structured replies"); return -1; } if (h->meta_contexts == NULL) { set_error (ENOTSUP, "did not negotiate any metadata contexts, " "either you did not call nbd_add_meta_context before " "connecting or the server does not support it"); return -1; } if ((flags & ~LIBNBD_CMD_FLAG_REQ_ONE) != 0) { set_error (EINVAL, "invalid flag: %" PRIu32, flags); return -1; } if (count == 0) { /* NBD protocol forbids this. */ set_error (EINVAL, "count cannot be 0"); return -1; } return nbd_internal_command_common (h, flags, NBD_CMD_BLOCK_STATUS, offset, count, NULL, &cb); } ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/socket.c���������������������������������������������������������������������������0000664�0001750�0001750�00000004427�13524776043�012115� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* struct socket_ops for a plain ordinary Berkeley socket. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> #include <sys/types.h> #include <sys/socket.h> #include "internal.h" static ssize_t socket_recv (struct nbd_handle *h, struct socket *sock, void *buf, size_t len) { ssize_t r; r = recv (sock->u.fd, buf, len, 0); if (r == -1 && errno != EAGAIN && errno != EWOULDBLOCK) set_error (errno, "recv"); return r; } static ssize_t socket_send (struct nbd_handle *h, struct socket *sock, const void *buf, size_t len, int flags) { ssize_t r; /* We don't want to die from SIGPIPE, but also don't want to force a * changed signal handler on the rest of the application. */ flags |= MSG_NOSIGNAL; r = send (sock->u.fd, buf, len, flags); if (r == -1 && errno != EAGAIN && errno != EWOULDBLOCK) set_error (errno, "send"); return r; } static int socket_get_fd (struct socket *sock) { return sock->u.fd; } static int socket_close (struct socket *sock) { int r = close (sock->u.fd); free (sock); return r; } static struct socket_ops socket_ops = { .recv = socket_recv, .send = socket_send, .get_fd = socket_get_fd, .close = socket_close, }; struct socket * nbd_internal_socket_create (int fd) { struct socket *sock; sock = malloc (sizeof *sock); if (sock == NULL) { set_error (errno, "malloc"); return NULL; } sock->u.fd = fd; sock->ops = &socket_ops; return sock; } �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/states.c���������������������������������������������������������������������������0000444�0001750�0001750�00000424723�13571455450�012127� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator generator/states*.c * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #line 1 "generator/states-connect-socket-activation.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine related to connecting with systemd socket activation. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <unistd.h> #include <sys/socket.h> #include <sys/un.h> #include "internal.h" /* This is baked into the systemd socket activation API. */ #define FIRST_SOCKET_ACTIVATION_FD 3 /* == strlen ("LISTEN_PID=") | strlen ("LISTEN_FDS=") */ #define PREFIX_LENGTH 11 extern char **environ; /* Prepare environment for calling execvp when doing systemd socket * activation. Takes the current environment and copies it. Removes * any existing LISTEN_PID or LISTEN_FDS and replaces them with new * variables. env[0] is "LISTEN_PID=..." which is filled in by * CONNECT_SA.START, and env[1] is "LISTEN_FDS=1". */ static char ** prepare_socket_activation_environment (void) { char **env = NULL; char *p0 = NULL, *p1 = NULL; size_t i, len; void *vp; p0 = strdup ("LISTEN_PID=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"); if (p0 == NULL) goto err; p1 = strdup ("LISTEN_FDS=1"); if (p1 == NULL) goto err; /* Copy the current environment. */ env = nbd_internal_copy_string_list (environ); if (env == NULL) goto err; /* Reserve slots env[0] and env[1]. */ len = nbd_internal_string_list_length (env); vp = realloc (env, sizeof (char *) * (len + 3)); /* include final NULL entry */ if (vp == NULL) goto err; env = vp; memmove (&env[2], &env[0], sizeof (char *) * (len + 1)); env[0] = p0; /* Code below assumes env[0] is LISTEN_PID. */ env[1] = p1; /* Remove any existing LISTEN_PID or LISTEN_FDS instances. */ for (i = 2; env[i] != NULL; ++i) { if (strncmp (env[i], "LISTEN_PID=", PREFIX_LENGTH) == 0 || strncmp (env[i], "LISTEN_FDS=", PREFIX_LENGTH) == 0) { memmove (&env[i], &env[i+1], sizeof (char *) * (nbd_internal_string_list_length (&env[i]))); i--; } } return env; err: set_error (errno, "malloc"); nbd_internal_free_string_list (env); free (p0); free (p1); return NULL; } #line 1 "generator/states-connect.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machines related to connecting to the server. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <stdbool.h> #include <string.h> #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <signal.h> #include <netdb.h> #include <netinet/in.h> #include <netinet/tcp.h> #include <sys/types.h> #include <sys/socket.h> /* Disable Nagle's algorithm on the socket, but don't fail. */ static void disable_nagle (int sock) { const int flag = 1; setsockopt (sock, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof flag); } #line 1 "generator/states-issue-command.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for issuing commands (requests) to the server. */ #line 1 "generator/states-magic.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for parsing the initial magic number from the server. */ #line 1 "generator/states-newstyle-opt-export-name.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for ending newstyle handshake with NBD_OPT_EXPORT_NAME. */ #line 1 "generator/states-newstyle-opt-go.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for ending fixed newstyle handshake with NBD_OPT_GO. */ #line 1 "generator/states-newstyle-opt-set-meta-context.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for negotiating NBD_OPT_SET_META_CONTEXT. */ #line 1 "generator/states-newstyle-opt-starttls.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for sending NBD_OPT_STARTTLS. */ #line 1 "generator/states-newstyle-opt-structured-reply.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for negotiating NBD_OPT_STRUCTURED_REPLY. */ #line 1 "generator/states-newstyle.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <assert.h> #include "internal.h" /* Common code for parsing a reply to NBD_OPT_*. */ static int prepare_for_reply_payload (struct nbd_handle *h, uint32_t opt) { const size_t maxpayload = sizeof h->sbuf.or.payload; uint64_t magic; uint32_t option; uint32_t reply; uint32_t len; magic = be64toh (h->sbuf.or.option_reply.magic); option = be32toh (h->sbuf.or.option_reply.option); reply = be32toh (h->sbuf.or.option_reply.reply); len = be32toh (h->sbuf.or.option_reply.replylen); if (magic != NBD_REP_MAGIC || option != opt) { set_error (0, "handshake: invalid option reply magic or option"); return -1; } /* Validate lengths that the state machine depends on. */ switch (reply) { case NBD_REP_ACK: if (len != 0) { set_error (0, "handshake: invalid NBD_REP_ACK option reply length"); return -1; } break; case NBD_REP_INFO: /* Can't enforce an upper bound, thanks to unknown INFOs */ if (len < sizeof h->sbuf.or.payload.export.info) { set_error (0, "handshake: NBD_REP_INFO reply length too small"); return -1; } break; case NBD_REP_META_CONTEXT: if (len <= sizeof h->sbuf.or.payload.context.context || len > sizeof h->sbuf.or.payload.context) { set_error (0, "handshake: invalid NBD_REP_META_CONTEXT reply length"); return -1; } break; } /* Read the following payload if it is short enough to fit in the * static buffer. If it's too long, skip it. */ len = be32toh (h->sbuf.or.option_reply.replylen); if (len > MAX_REQUEST_SIZE) { set_error (0, "handshake: invalid option reply length"); return -1; } else if (len <= maxpayload) h->rbuf = &h->sbuf.or.payload; else h->rbuf = NULL; h->rlen = len; return 0; } /* Check an unexpected server reply. If it is an error, log any * message from the server and return 0; otherwise, return -1. */ static int handle_reply_error (struct nbd_handle *h) { uint32_t len; uint32_t reply; len = be32toh (h->sbuf.or.option_reply.replylen); reply = be32toh (h->sbuf.or.option_reply.reply); if (!NBD_REP_IS_ERR (reply)) { set_error (0, "handshake: unexpected option reply type %d", reply); return -1; } assert (NBD_MAX_STRING < sizeof h->sbuf.or.payload); if (len > NBD_MAX_STRING) { set_error (0, "handshake: option error string too long"); return -1; } if (len > 0) debug (h, "handshake: server error message: %.*s", (int) len, h->sbuf.or.payload.err_msg); return 0; } /* State machine for parsing the fixed newstyle handshake. */ #line 1 "generator/states-oldstyle.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for parsing the oldstyle handshake. */ #line 1 "generator/states-reply-simple.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for parsing simple replies from the server. */ #line 1 "generator/states-reply-structured.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* State machine for parsing structured replies from the server. */ #include <stdbool.h> #include <stdint.h> #include <inttypes.h> /* Structured reply must be completely inside the bounds of the * requesting command. */ static bool structured_reply_in_bounds (uint64_t offset, uint32_t length, const struct command *cmd) { if (offset < cmd->offset || offset >= cmd->offset + cmd->count || offset + length > cmd->offset + cmd->count) { set_error (0, "range of structured reply is out of bounds, " "offset=%" PRIu64 ", cmd->offset=%" PRIu64 ", " "length=%" PRIu32 ", cmd->count=%" PRIu32 ": " "this is likely to be a bug in the NBD server", offset, cmd->offset, length, cmd->count); return false; } return true; } #line 1 "generator/states-reply.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <assert.h> /* State machine for receiving reply messages from the server. * * Note that we never block while in this sub-group. If there is * insufficient data to finish parsing a reply, requiring us to block * until POLLIN, we instead track where in the state machine we left * off, then return to READY to actually block. Then, on entry to * REPLY.START, we can tell if this is the start of a new reply (rlen * is 0, stay put), a continuation of the preamble (reply_cmd is NULL, * resume with RECV_REPLY), or a continuation from any other location * (reply_cmd contains the state to jump to). */ static void save_reply_state (struct nbd_handle *h) { assert (h->reply_cmd); assert (h->rlen); h->reply_cmd->state = get_next_state (h); } #line 1 "generator/states.c" /* nbd client library in userspace: state machine * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* This isn't "real" C code. It is read by the generator, parsed, and * put into generated files. Also it won't make much sense unless you * read the generator state machine and documentation in * generator/generator first. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <stdbool.h> #include <string.h> #include <unistd.h> #include <assert.h> #include "internal.h" /* Uncomment this to dump received protocol packets to stderr. */ /*#define DUMP_PACKETS 1*/ static int recv_into_rbuf (struct nbd_handle *h) { ssize_t r; char buf[BUFSIZ]; void *rbuf; size_t rlen; if (h->rlen == 0) return 0; /* move to next state */ /* As a special case h->rbuf is allowed to be NULL, meaning * throw away the data. */ if (h->rbuf) { rbuf = h->rbuf; rlen = h->rlen; } else { rbuf = &buf; rlen = h->rlen > sizeof buf ? sizeof buf : h->rlen; } r = h->sock->ops->recv (h, h->sock, rbuf, rlen); if (r == -1) { if (errno == EAGAIN || errno == EWOULDBLOCK) return 1; /* more data */ /* sock->ops->recv called set_error already. */ return -1; } if (r == 0) { set_error (0, "recv: server disconnected unexpectedly"); return -1; } #ifdef DUMP_PACKETS if (h->rbuf != NULL) nbd_internal_hexdump (h->rbuf, r, stderr); #endif if (h->rbuf) h->rbuf += r; h->rlen -= r; if (h->rlen == 0) return 0; /* move to next state */ else return 1; /* more data */ } static int send_from_wbuf (struct nbd_handle *h) { ssize_t r; if (h->wlen == 0) goto next_state; r = h->sock->ops->send (h, h->sock, h->wbuf, h->wlen, h->wflags); if (r == -1) { if (errno == EAGAIN || errno == EWOULDBLOCK) return 1; /* more data */ /* sock->ops->send called set_error already. */ return -1; } h->wbuf += r; h->wlen -= r; if (h->wlen == 0) goto next_state; else return 1; /* more data */ next_state: h->wflags = 0; /* reset this when moving to next state */ return 0; /* move to next state */ } /* Forcefully fail any remaining in-flight commands in list */ void abort_commands (struct nbd_handle *h, struct command **list) { struct command *next, *cmd; for (cmd = *list, *list = NULL; cmd != NULL; cmd = next) { bool retire = cmd->type == NBD_CMD_DISC; next = cmd->next; if (CALLBACK_IS_NOT_NULL (cmd->cb.completion)) { int error = cmd->error ? cmd->error : ENOTCONN; int r; assert (cmd->type != NBD_CMD_DISC); r = CALL_CALLBACK (cmd->cb.completion, &error); switch (r) { case -1: if (error) cmd->error = error; break; case 1: retire = true; break; } } if (cmd->error == 0) cmd->error = ENOTCONN; if (retire) nbd_internal_retire_and_free_command (cmd); else { cmd->next = NULL; if (h->cmds_done_tail) h->cmds_done_tail->next = cmd; else { assert (h->cmds_done == NULL); h->cmds_done = cmd; } h->cmds_done_tail = cmd; } } } #define SET_NEXT_STATE(s) (*blocked = false, *next_state = (s)) #define SET_NEXT_STATE_AND_BLOCK(s) (*next_state = (s)) /* START: Handle after being initially created */ static int enter_STATE_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { return 0; } int nbd_internal_enter_STATE_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_START; r = enter_STATE_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* CONNECT.START: Initial call to connect(2) on the socket */ static int enter_STATE_CONNECT_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 49 "generator/states-connect.c" int fd; assert (!h->sock); fd = socket (h->connaddr.ss_family, SOCK_STREAM|SOCK_NONBLOCK|SOCK_CLOEXEC, 0); if (fd == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "socket"); return 0; } h->sock = nbd_internal_socket_create (fd); if (!h->sock) { SET_NEXT_STATE (STATE_DEAD); return 0; } disable_nagle (fd); if (connect (fd, (struct sockaddr *) &h->connaddr, h->connaddrlen) == -1) { if (errno != EINPROGRESS) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "connect"); return 0; } } return 0; } int nbd_internal_enter_STATE_CONNECT_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_CONNECT_START; r = enter_STATE_CONNECT_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "CONNECT.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* CONNECT.CONNECTING: Connecting to the remote server */ static int enter_STATE_CONNECT_CONNECTING (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 78 "generator/states-connect.c" int status; socklen_t len = sizeof status; if (getsockopt (h->sock->ops->get_fd (h->sock), SOL_SOCKET, SO_ERROR, &status, &len) == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "getsockopt: SO_ERROR"); return 0; } /* This checks the status of the original connect call. */ if (status == 0) { SET_NEXT_STATE (STATE_MAGIC_START); return 0; } else { SET_NEXT_STATE (STATE_DEAD); set_error (status, "connect"); return 0; } } int nbd_internal_enter_STATE_CONNECT_CONNECTING (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_CONNECT_CONNECTING; r = enter_STATE_CONNECT_CONNECTING (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "CONNECT.CONNECTING", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* CONNECT_TCP.START: Connect to a remote TCP server */ static int enter_STATE_CONNECT_TCP_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 99 "generator/states-connect.c" int r; assert (h->hostname != NULL); assert (h->port != NULL); if (h->result) { freeaddrinfo (h->result); h->result = NULL; } h->connect_errno = 0; memset (&h->hints, 0, sizeof h->hints); h->hints.ai_family = AF_UNSPEC; h->hints.ai_socktype = SOCK_STREAM; h->hints.ai_flags = 0; h->hints.ai_protocol = 0; /* XXX Unfortunately getaddrinfo blocks. getaddrinfo_a isn't * portable and in any case isn't an alternative because it can't be * integrated into a main loop. */ r = getaddrinfo (h->hostname, h->port, &h->hints, &h->result); if (r != 0) { SET_NEXT_STATE (STATE_START); set_error (0, "getaddrinfo: %s:%s: %s", h->hostname, h->port, gai_strerror (r)); return -1; } h->rp = h->result; SET_NEXT_STATE (STATE_CONNECT_TCP_CONNECT); return 0; } int nbd_internal_enter_STATE_CONNECT_TCP_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_CONNECT_TCP_START; r = enter_STATE_CONNECT_TCP_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "CONNECT_TCP.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* CONNECT_TCP.CONNECT: Initial call to connect(2) on a TCP socket */ static int enter_STATE_CONNECT_TCP_CONNECT (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 134 "generator/states-connect.c" int fd; assert (!h->sock); if (h->rp == NULL) { /* We tried all the results from getaddrinfo without success. * Save errno from most recent connect(2) call. XXX */ SET_NEXT_STATE (STATE_START); set_error (h->connect_errno, "connect: %s:%s: could not connect to remote host", h->hostname, h->port); return -1; } fd = socket (h->rp->ai_family, h->rp->ai_socktype|SOCK_NONBLOCK|SOCK_CLOEXEC, h->rp->ai_protocol); if (fd == -1) { SET_NEXT_STATE (STATE_CONNECT_TCP_NEXT_ADDRESS); return 0; } h->sock = nbd_internal_socket_create (fd); if (!h->sock) { SET_NEXT_STATE (STATE_DEAD); return 0; } disable_nagle (fd); if (connect (fd, h->rp->ai_addr, h->rp->ai_addrlen) == -1) { if (errno != EINPROGRESS) { if (h->connect_errno == 0) h->connect_errno = errno; SET_NEXT_STATE (STATE_CONNECT_TCP_NEXT_ADDRESS); return 0; } } SET_NEXT_STATE (STATE_CONNECT_TCP_CONNECTING); return 0; } int nbd_internal_enter_STATE_CONNECT_TCP_CONNECT (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_CONNECT_TCP_CONNECT; r = enter_STATE_CONNECT_TCP_CONNECT (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "CONNECT_TCP.CONNECT", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* CONNECT_TCP.CONNECTING: Connecting to the remote server over a TCP socket */ static int enter_STATE_CONNECT_TCP_CONNECTING (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 177 "generator/states-connect.c" int status; socklen_t len = sizeof status; if (getsockopt (h->sock->ops->get_fd (h->sock), SOL_SOCKET, SO_ERROR, &status, &len) == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "getsockopt: SO_ERROR"); return 0; } /* This checks the status of the original connect call. */ if (status == 0) SET_NEXT_STATE (STATE_MAGIC_START); else { if (h->connect_errno == 0) h->connect_errno = status; SET_NEXT_STATE (STATE_CONNECT_TCP_NEXT_ADDRESS); } return 0; } int nbd_internal_enter_STATE_CONNECT_TCP_CONNECTING (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_CONNECT_TCP_CONNECTING; r = enter_STATE_CONNECT_TCP_CONNECTING (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "CONNECT_TCP.CONNECTING", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* CONNECT_TCP.NEXT_ADDRESS: Connecting to the next address over a TCP socket */ static int enter_STATE_CONNECT_TCP_NEXT_ADDRESS (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 197 "generator/states-connect.c" if (h->sock) { h->sock->ops->close (h->sock); h->sock = NULL; } if (h->rp) h->rp = h->rp->ai_next; SET_NEXT_STATE (STATE_CONNECT_TCP_CONNECT); return 0; } int nbd_internal_enter_STATE_CONNECT_TCP_NEXT_ADDRESS (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_CONNECT_TCP_NEXT_ADDRESS; r = enter_STATE_CONNECT_TCP_NEXT_ADDRESS (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "CONNECT_TCP.NEXT_ADDRESS", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* CONNECT_COMMAND.START: Connect to a subprocess */ static int enter_STATE_CONNECT_COMMAND_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 207 "generator/states-connect.c" int sv[2]; pid_t pid; int flags; assert (!h->sock); assert (h->argv); assert (h->argv[0]); if (socketpair (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, sv) == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "socketpair"); return 0; } pid = fork (); if (pid == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "fork"); close (sv[0]); close (sv[1]); return 0; } if (pid == 0) { /* child - run command */ close (0); close (1); close (sv[0]); dup2 (sv[1], 0); dup2 (sv[1], 1); close (sv[1]); /* Restore SIGPIPE back to SIG_DFL. */ signal (SIGPIPE, SIG_DFL); execvp (h->argv[0], h->argv); nbd_internal_fork_safe_perror (h->argv[0]); if (errno == ENOENT) _exit (127); else _exit (126); } /* Parent. */ close (sv[1]); h->pid = pid; /* The socket must be set to non-blocking only in the parent, * because the child may not be expecting a non-blocking socket. */ flags = fcntl (sv[0], F_GETFL, 0); if (flags == -1 || fcntl (sv[0], F_SETFL, flags|O_NONBLOCK) == -1) { SET_NEXT_STATE (STATE_DEAD); close (sv[0]); return 0; } h->sock = nbd_internal_socket_create (sv[0]); if (!h->sock) { SET_NEXT_STATE (STATE_DEAD); close (sv[0]); return 0; } /* The sockets are connected already, we can jump directly to * receiving the server magic. */ SET_NEXT_STATE (STATE_MAGIC_START); return 0; } int nbd_internal_enter_STATE_CONNECT_COMMAND_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_CONNECT_COMMAND_START; r = enter_STATE_CONNECT_COMMAND_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "CONNECT_COMMAND.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* CONNECT_SA.START: Connect to a subprocess with systemd socket activation */ static int enter_STATE_CONNECT_SA_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 100 "generator/states-connect-socket-activation.c" int s; struct sockaddr_un addr; char **env; pid_t pid; int flags; assert (!h->sock); assert (h->argv); assert (h->argv[0]); /* Use /tmp instead of TMPDIR because we must ensure the path is * short enough to store in the sockaddr_un. On some platforms this * may cause problems so we may need to revisit it. XXX */ h->sa_tmpdir = strdup ("/tmp/libnbdXXXXXX"); if (h->sa_tmpdir == NULL) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "strdup"); return 0; } if (mkdtemp (h->sa_tmpdir) == NULL) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "mkdtemp"); /* Avoid cleanup in nbd_close. */ free (h->sa_tmpdir); h->sa_tmpdir = NULL; return 0; } if (asprintf (&h->sa_sockpath, "%s/sock", h->sa_tmpdir) == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "strdup"); return 0; } s = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); if (s == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "socket"); return 0; } addr.sun_family = AF_UNIX; memcpy (addr.sun_path, h->sa_sockpath, strlen (h->sa_sockpath) + 1); if (bind (s, (struct sockaddr *) &addr, sizeof addr) == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "bind: %s", h->sa_sockpath); close (s); return 0; } if (listen (s, 1) == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "listen"); close (s); return 0; } env = prepare_socket_activation_environment (); if (!env) { SET_NEXT_STATE (STATE_DEAD); close (s); return 0; } pid = fork (); if (pid == -1) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "fork"); close (s); nbd_internal_free_string_list (env); return 0; } if (pid == 0) { /* child - run command */ if (s != FIRST_SOCKET_ACTIVATION_FD) { dup2 (s, FIRST_SOCKET_ACTIVATION_FD); close (s); } else { /* We must unset CLOEXEC on the fd. (dup2 above does this * implicitly because CLOEXEC is set on the fd, not on the * socket). */ flags = fcntl (s, F_GETFD, 0); if (flags == -1) { nbd_internal_fork_safe_perror ("fcntl: F_GETFD"); _exit (126); } if (fcntl (s, F_SETFD, flags & ~FD_CLOEXEC) == -1) { nbd_internal_fork_safe_perror ("fcntl: F_SETFD"); _exit (126); } } char buf[32]; const char *v = nbd_internal_fork_safe_itoa ((long) getpid (), buf, sizeof buf); strcpy (&env[0][PREFIX_LENGTH], v); /* Restore SIGPIPE back to SIG_DFL. */ signal (SIGPIPE, SIG_DFL); environ = env; execvp (h->argv[0], h->argv); nbd_internal_fork_safe_perror (h->argv[0]); if (errno == ENOENT) _exit (127); else _exit (126); } /* Parent. */ close (s); nbd_internal_free_string_list (env); h->pid = pid; h->connaddrlen = sizeof addr; memcpy (&h->connaddr, &addr, h->connaddrlen); SET_NEXT_STATE (STATE_CONNECT_START); return 0; } int nbd_internal_enter_STATE_CONNECT_SA_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_CONNECT_SA_START; r = enter_STATE_CONNECT_SA_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "CONNECT_SA.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* MAGIC.START: Prepare to receive the magic identification from remote */ static int enter_STATE_MAGIC_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 22 "generator/states-magic.c" h->rbuf = &h->sbuf; h->rlen = 16; SET_NEXT_STATE (STATE_MAGIC_RECV_MAGIC); return 0; } int nbd_internal_enter_STATE_MAGIC_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_MAGIC_START; r = enter_STATE_MAGIC_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "MAGIC.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* MAGIC.RECV_MAGIC: Receive initial magic identification from remote */ static int enter_STATE_MAGIC_RECV_MAGIC (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 28 "generator/states-magic.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_MAGIC_CHECK_MAGIC); } return 0; } int nbd_internal_enter_STATE_MAGIC_RECV_MAGIC (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_MAGIC_RECV_MAGIC; r = enter_STATE_MAGIC_RECV_MAGIC (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "MAGIC.RECV_MAGIC", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* MAGIC.CHECK_MAGIC: Check magic and version sent by remote */ static int enter_STATE_MAGIC_CHECK_MAGIC (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 35 "generator/states-magic.c" uint64_t version; if (be64toh (h->sbuf.new_handshake.nbdmagic) != NBD_MAGIC) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "handshake: server did not send expected NBD magic"); return 0; } version = be64toh (h->sbuf.new_handshake.version); if (version == NBD_NEW_VERSION) SET_NEXT_STATE (STATE_NEWSTYLE_START); else if (version == NBD_OLD_VERSION) SET_NEXT_STATE (STATE_OLDSTYLE_START); else { SET_NEXT_STATE (STATE_DEAD); set_error (0, "handshake: server is not either an oldstyle or fixed newstyle NBD server"); return 0; } return 0; } int nbd_internal_enter_STATE_MAGIC_CHECK_MAGIC (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_MAGIC_CHECK_MAGIC; r = enter_STATE_MAGIC_CHECK_MAGIC (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "MAGIC.CHECK_MAGIC", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* OLDSTYLE.START: Prepare to receive remainder of oldstyle header */ static int enter_STATE_OLDSTYLE_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 22 "generator/states-oldstyle.c" /* We've already read the first 16 bytes of the handshake, we must * now read the remainder. */ h->rbuf = &h->sbuf.old_handshake; h->rlen = sizeof h->sbuf.old_handshake; h->rbuf += 16; h->rlen -= 16; SET_NEXT_STATE (STATE_OLDSTYLE_RECV_REMAINING); return 0; } int nbd_internal_enter_STATE_OLDSTYLE_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_OLDSTYLE_START; r = enter_STATE_OLDSTYLE_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "OLDSTYLE.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* OLDSTYLE.RECV_REMAINING: Receive remainder of oldstyle header */ static int enter_STATE_OLDSTYLE_RECV_REMAINING (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 33 "generator/states-oldstyle.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_OLDSTYLE_CHECK); } return 0; } int nbd_internal_enter_STATE_OLDSTYLE_RECV_REMAINING (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_OLDSTYLE_RECV_REMAINING; r = enter_STATE_OLDSTYLE_RECV_REMAINING (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "OLDSTYLE.RECV_REMAINING", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* OLDSTYLE.CHECK: Check oldstyle header */ static int enter_STATE_OLDSTYLE_CHECK (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 40 "generator/states-oldstyle.c" uint64_t exportsize; uint16_t gflags, eflags; /* We already checked the magic and version in MAGIC.CHECK_MAGIC. */ exportsize = be64toh (h->sbuf.old_handshake.exportsize); gflags = be16toh (h->sbuf.old_handshake.gflags); eflags = be16toh (h->sbuf.old_handshake.eflags); /* Server is unable to upgrade to TLS. If h->tls is not 'require' (2) * then we can continue unencrypted. */ if (h->tls == LIBNBD_TLS_REQUIRE) { SET_NEXT_STATE (STATE_DEAD); set_error (ENOTSUP, "handshake: server is oldstyle, " "but handle TLS setting is 'require' (2)"); return 0; } h->gflags = gflags; debug (h, "gflags: 0x%" PRIx16, gflags); if (gflags) { set_error (0, "handshake: oldstyle server should not set gflags"); SET_NEXT_STATE (STATE_DEAD); return 0; } if (nbd_internal_set_size_and_flags (h, exportsize, eflags) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } h->protocol = "oldstyle"; SET_NEXT_STATE (STATE_READY); return 0; } int nbd_internal_enter_STATE_OLDSTYLE_CHECK (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_OLDSTYLE_CHECK; r = enter_STATE_OLDSTYLE_CHECK (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "OLDSTYLE.CHECK", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.START: Prepare to receive newstyle gflags from remote */ static int enter_STATE_NEWSTYLE_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 114 "generator/states-newstyle.c" h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.gflags; SET_NEXT_STATE (STATE_NEWSTYLE_RECV_GFLAGS); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_START; r = enter_STATE_NEWSTYLE_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.RECV_GFLAGS: Receive newstyle gflags from remote */ static int enter_STATE_NEWSTYLE_RECV_GFLAGS (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 120 "generator/states-newstyle.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_NEWSTYLE_CHECK_GFLAGS); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_RECV_GFLAGS (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_RECV_GFLAGS; r = enter_STATE_NEWSTYLE_RECV_GFLAGS (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.RECV_GFLAGS", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.CHECK_GFLAGS: Check global flags sent by remote */ static int enter_STATE_NEWSTYLE_CHECK_GFLAGS (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 127 "generator/states-newstyle.c" uint32_t cflags; h->gflags &= be16toh (h->sbuf.gflags); if ((h->gflags & LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE) == 0 && h->tls == LIBNBD_TLS_REQUIRE) { SET_NEXT_STATE (STATE_DEAD); set_error (ENOTSUP, "handshake: server is not using fixed newstyle, " "but handle TLS setting is 'require' (2)"); return 0; } cflags = h->gflags; h->sbuf.cflags = htobe32 (cflags); h->wbuf = &h->sbuf; h->wlen = 4; SET_NEXT_STATE (STATE_NEWSTYLE_SEND_CFLAGS); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_CHECK_GFLAGS (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_CHECK_GFLAGS; r = enter_STATE_NEWSTYLE_CHECK_GFLAGS (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.CHECK_GFLAGS", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.SEND_CFLAGS: Send newstyle client flags to remote */ static int enter_STATE_NEWSTYLE_SEND_CFLAGS (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 146 "generator/states-newstyle.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: /* Start sending options. */ if ((h->gflags & LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE) == 0) SET_NEXT_STATE (STATE_NEWSTYLE_OPT_EXPORT_NAME_START); else SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_START); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_SEND_CFLAGS (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_SEND_CFLAGS; r = enter_STATE_NEWSTYLE_SEND_CFLAGS (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.SEND_CFLAGS", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STARTTLS.START: Try to send newstyle NBD_OPT_STARTTLS to upgrade to TLS */ static int enter_STATE_NEWSTYLE_OPT_STARTTLS_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 22 "generator/states-newstyle-opt-starttls.c" /* If TLS was not requested we skip this option and go to the next one. */ if (h->tls == LIBNBD_TLS_DISABLE) { SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START); return 0; } h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_STARTTLS); h->sbuf.option.optlen = 0; h->wbuf = &h->sbuf; h->wlen = sizeof (h->sbuf.option); SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_SEND); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STARTTLS_START; r = enter_STATE_NEWSTYLE_OPT_STARTTLS_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STARTTLS.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STARTTLS.SEND: Send newstyle NBD_OPT_STARTTLS to upgrade to TLS */ static int enter_STATE_NEWSTYLE_OPT_STARTTLS_SEND (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 37 "generator/states-newstyle-opt-starttls.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->rbuf = &h->sbuf; h->rlen = sizeof (h->sbuf.or.option_reply); SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_SEND (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STARTTLS_SEND; r = enter_STATE_NEWSTYLE_OPT_STARTTLS_SEND (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STARTTLS.SEND", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STARTTLS.RECV_REPLY: Receive newstyle NBD_OPT_STARTTLS reply */ static int enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 47 "generator/states-newstyle-opt-starttls.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: if (prepare_for_reply_payload (h, NBD_OPT_STARTTLS) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY; r = enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STARTTLS.RECV_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STARTTLS.RECV_REPLY_PAYLOAD: Receive any newstyle NBD_OPT_STARTTLS reply payload */ static int enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 59 "generator/states-newstyle-opt-starttls.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD; r = enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STARTTLS.RECV_REPLY_PAYLOAD", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STARTTLS.CHECK_REPLY: Check newstyle NBD_OPT_STARTTLS reply */ static int enter_STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 66 "generator/states-newstyle-opt-starttls.c" uint32_t reply; struct socket *new_sock; reply = be32toh (h->sbuf.or.option_reply.reply); switch (reply) { case NBD_REP_ACK: new_sock = nbd_internal_crypto_create_session (h, h->sock); if (new_sock == NULL) { SET_NEXT_STATE (STATE_DEAD); return 0; } h->sock = new_sock; if (nbd_internal_crypto_is_reading (h)) SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ); else SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE); return 0; default: if (handle_reply_error (h) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } /* Server refused to upgrade to TLS. If h->tls is not 'require' (2) * then we can continue unencrypted. */ if (h->tls == LIBNBD_TLS_REQUIRE) { SET_NEXT_STATE (STATE_DEAD); set_error (ENOTSUP, "handshake: server refused TLS, " "but handle TLS setting is 'require' (2)"); return 0; } debug (h, "server refused TLS (%s), continuing with unencrypted connection", reply == NBD_REP_ERR_POLICY ? "policy" : "not supported"); SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START); return 0; } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY; r = enter_STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STARTTLS.CHECK_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_READ: TLS handshake (reading) */ static int enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 109 "generator/states-newstyle-opt-starttls.c" int r; r = nbd_internal_crypto_handshake (h); if (r == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } if (r == 0) { /* Finished handshake. */ h->tls_negotiated = true; nbd_internal_crypto_debug_tls_enabled (h); /* Continue with option negotiation. */ SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START); return 0; } /* Continue handshake. */ if (nbd_internal_crypto_is_reading (h)) SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ); else SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ; r = enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_READ", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_WRITE: TLS handshake (writing) */ static int enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 133 "generator/states-newstyle-opt-starttls.c" int r; r = nbd_internal_crypto_handshake (h); if (r == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } if (r == 0) { /* Finished handshake. */ debug (h, "connection is using TLS"); /* Continue with option negotiation. */ SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START); return 0; } /* Continue handshake. */ if (nbd_internal_crypto_is_reading (h)) SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ); else SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE; r = enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_WRITE", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STRUCTURED_REPLY.START: Try to negotiate newstyle NBD_OPT_STRUCTURED_REPLY */ static int enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 22 "generator/states-newstyle-opt-structured-reply.c" if (!h->request_sr) { SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START); return 0; } h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_STRUCTURED_REPLY); h->sbuf.option.optlen = htobe32 (0); h->wbuf = &h->sbuf; h->wlen = sizeof h->sbuf.option; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START; r = enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STRUCTURED_REPLY.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STRUCTURED_REPLY.SEND: Send newstyle NBD_OPT_STRUCTURED_REPLY negotiation request */ static int enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 36 "generator/states-newstyle-opt-structured-reply.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.or.option_reply; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND; r = enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STRUCTURED_REPLY.SEND", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY: Receive newstyle NBD_OPT_STRUCTURED_REPLY option reply */ static int enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 46 "generator/states-newstyle-opt-structured-reply.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: if (prepare_for_reply_payload (h, NBD_OPT_STRUCTURED_REPLY) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY; r = enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY_PAYLOAD: Receive any newstyle NBD_OPT_STRUCTURED_REPLY reply payload */ static int enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 58 "generator/states-newstyle-opt-structured-reply.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD; r = enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY_PAYLOAD", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_STRUCTURED_REPLY.CHECK_REPLY: Check newstyle NBD_OPT_STRUCTURED_REPLY option reply */ static int enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 65 "generator/states-newstyle-opt-structured-reply.c" uint32_t reply; reply = be32toh (h->sbuf.or.option_reply.reply); switch (reply) { case NBD_REP_ACK: debug (h, "negotiated structured replies on this connection"); h->structured_replies = true; break; default: if (handle_reply_error (h) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } debug (h, "structured replies are not supported by this server"); h->structured_replies = false; break; } /* Next option. */ SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY; r = enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_STRUCTURED_REPLY.CHECK_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.START: Try to negotiate newstyle NBD_OPT_SET_META_CONTEXT */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 22 "generator/states-newstyle-opt-set-meta-context.c" size_t i, nr_queries; uint32_t len; /* If the server doesn't support SRs then we must skip this group. * Also we skip the group if the client didn't request any metadata * contexts. */ if (!h->structured_replies || h->request_meta_contexts == NULL || nbd_internal_string_list_length (h->request_meta_contexts) == 0) { SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_START); return 0; } assert (h->meta_contexts == NULL); /* Calculate the length of the option request data. */ len = 4 /* exportname len */ + strlen (h->export_name) + 4 /* nr queries */; nr_queries = nbd_internal_string_list_length (h->request_meta_contexts); for (i = 0; i < nr_queries; ++i) len += 4 /* length of query */ + strlen (h->request_meta_contexts[i]); h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_SET_META_CONTEXT); h->sbuf.option.optlen = htobe32 (len); h->wbuf = &h->sbuf; h->wlen = sizeof (h->sbuf.option); h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND: Send newstyle NBD_OPT_SET_META_CONTEXT */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 54 "generator/states-newstyle-opt-set-meta-context.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->sbuf.len = htobe32 (strlen (h->export_name)); h->wbuf = &h->sbuf.len; h->wlen = sizeof h->sbuf.len; h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.SEND", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAMELEN: Send newstyle NBD_OPT_SET_META_CONTEXT export name length */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 66 "generator/states-newstyle-opt-set-meta-context.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->wbuf = h->export_name; h->wlen = strlen (h->export_name); h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAMELEN", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAME: Send newstyle NBD_OPT_SET_META_CONTEXT export name */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 77 "generator/states-newstyle-opt-set-meta-context.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->sbuf.nrqueries = htobe32 (nbd_internal_string_list_length (h->request_meta_contexts)); h->wbuf = &h->sbuf; h->wlen = sizeof h->sbuf.nrqueries; h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAME", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_NRQUERIES: Send newstyle NBD_OPT_SET_META_CONTEXT number of queries */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 90 "generator/states-newstyle-opt-set-meta-context.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->querynum = 0; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_NRQUERIES", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_NEXT_QUERY: Prepare to send newstyle NBD_OPT_SET_META_CONTEXT query */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 99 "generator/states-newstyle-opt-set-meta-context.c" const char *query = h->request_meta_contexts[h->querynum]; if (query == NULL) { /* end of list of requested meta contexts */ SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY); return 0; } h->sbuf.len = htobe32 (strlen (query)); h->wbuf = &h->sbuf.len; h->wlen = sizeof h->sbuf.len; h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_NEXT_QUERY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERYLEN: Send newstyle NBD_OPT_SET_META_CONTEXT query length */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 114 "generator/states-newstyle-opt-set-meta-context.c" const char *query = h->request_meta_contexts[h->querynum]; switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->wbuf = query; h->wlen = strlen (query); SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERYLEN", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERY: Send newstyle NBD_OPT_SET_META_CONTEXT query */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 126 "generator/states-newstyle-opt-set-meta-context.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->querynum++; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_FOR_REPLY: Prepare to receive newstyle NBD_OPT_SET_META_CONTEXT option reply */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 135 "generator/states-newstyle-opt-set-meta-context.c" h->rbuf = &h->sbuf.or.option_reply; h->rlen = sizeof h->sbuf.or.option_reply; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_FOR_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY: Receive newstyle NBD_OPT_SET_META_CONTEXT option reply */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 141 "generator/states-newstyle-opt-set-meta-context.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: if (prepare_for_reply_payload (h, NBD_OPT_SET_META_CONTEXT) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY_PAYLOAD: Receive newstyle NBD_OPT_SET_META_CONTEXT option reply payload */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 153 "generator/states-newstyle-opt-set-meta-context.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY_PAYLOAD", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_SET_META_CONTEXT.CHECK_REPLY: Check newstyle NBD_OPT_SET_META_CONTEXT option reply */ static int enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 160 "generator/states-newstyle-opt-set-meta-context.c" uint32_t reply; uint32_t len; const size_t maxpayload = sizeof h->sbuf.or.payload.context; struct meta_context *meta_context; reply = be32toh (h->sbuf.or.option_reply.reply); len = be32toh (h->sbuf.or.option_reply.replylen); switch (reply) { case NBD_REP_ACK: /* End of list of replies. */ SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_START); break; case NBD_REP_META_CONTEXT: /* A context. */ if (len > maxpayload) debug (h, "skipping too large meta context"); else { assert (len > sizeof h->sbuf.or.payload.context.context.context_id); meta_context = malloc (sizeof *meta_context); if (meta_context == NULL) { set_error (errno, "malloc"); SET_NEXT_STATE (STATE_DEAD); return 0; } meta_context->context_id = be32toh (h->sbuf.or.payload.context.context.context_id); /* String payload is not NUL-terminated. */ meta_context->name = strndup (h->sbuf.or.payload.context.str, len - sizeof meta_context->context_id); if (meta_context->name == NULL) { set_error (errno, "strdup"); SET_NEXT_STATE (STATE_DEAD); free (meta_context); return 0; } debug (h, "negotiated %s with context ID %" PRIu32, meta_context->name, meta_context->context_id); meta_context->next = h->meta_contexts; h->meta_contexts = meta_context; } SET_NEXT_STATE (STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY); break; default: /* Anything else is an error, ignore it */ if (handle_reply_error (h) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } debug (h, "handshake: unexpected error from " "NBD_OPT_SET_META_CONTEXT (%" PRIu32 ")", reply); SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_START); break; } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY; r = enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_SET_META_CONTEXT.CHECK_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_GO.START: Try to send newstyle NBD_OPT_GO to end handshake */ static int enter_STATE_NEWSTYLE_OPT_GO_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 22 "generator/states-newstyle-opt-go.c" h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_GO); h->sbuf.option.optlen = htobe32 (/* exportnamelen */ 4 + strlen (h->export_name) + /* nrinfos */ 2); h->wbuf = &h->sbuf; h->wlen = sizeof h->sbuf.option; h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_SEND); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_GO_START; r = enter_STATE_NEWSTYLE_OPT_GO_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_GO.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_GO.SEND: Send newstyle NBD_OPT_GO to end handshake */ static int enter_STATE_NEWSTYLE_OPT_GO_SEND (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 33 "generator/states-newstyle-opt-go.c" const uint32_t exportnamelen = strlen (h->export_name); switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->sbuf.len = htobe32 (exportnamelen); h->wbuf = &h->sbuf; h->wlen = 4; h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_GO_SEND; r = enter_STATE_NEWSTYLE_OPT_GO_SEND (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_GO.SEND", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_GO.SEND_EXPORTNAMELEN: Send newstyle NBD_OPT_GO export name length */ static int enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 47 "generator/states-newstyle-opt-go.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->wbuf = h->export_name; h->wlen = strlen (h->export_name); h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_SEND_EXPORT); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN; r = enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_GO.SEND_EXPORTNAMELEN", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_GO.SEND_EXPORT: Send newstyle NBD_OPT_GO export name */ static int enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORT (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 58 "generator/states-newstyle-opt-go.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->sbuf.nrinfos = 0; h->wbuf = &h->sbuf; h->wlen = 2; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORT (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_GO_SEND_EXPORT; r = enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORT (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_GO.SEND_EXPORT", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_GO.SEND_NRINFOS: Send newstyle NBD_OPT_GO number of infos */ static int enter_STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 69 "generator/states-newstyle-opt-go.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.or.option_reply; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_RECV_REPLY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS; r = enter_STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_GO.SEND_NRINFOS", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_GO.RECV_REPLY: Receive newstyle NBD_OPT_GO reply */ static int enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 79 "generator/states-newstyle-opt-go.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: if (prepare_for_reply_payload (h, NBD_OPT_GO) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_GO_RECV_REPLY; r = enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_GO.RECV_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_GO.RECV_REPLY_PAYLOAD: Receive newstyle NBD_OPT_GO reply payload */ static int enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 91 "generator/states-newstyle-opt-go.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_CHECK_REPLY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD; r = enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_GO.RECV_REPLY_PAYLOAD", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_GO.CHECK_REPLY: Check newstyle NBD_OPT_GO reply */ static int enter_STATE_NEWSTYLE_OPT_GO_CHECK_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 98 "generator/states-newstyle-opt-go.c" uint32_t reply; uint32_t len; const size_t maxpayload = sizeof h->sbuf.or.payload; uint16_t info; uint64_t exportsize; uint16_t eflags; reply = be32toh (h->sbuf.or.option_reply.reply); len = be32toh (h->sbuf.or.option_reply.replylen); switch (reply) { case NBD_REP_ACK: SET_NEXT_STATE (STATE_NEWSTYLE_FINISHED); return 0; case NBD_REP_INFO: if (len > maxpayload /* see RECV_NEWSTYLE_OPT_GO_REPLY */) debug (h, "skipping large NBD_REP_INFO"); else { assert (len >= sizeof h->sbuf.or.payload.export.info); info = be16toh (h->sbuf.or.payload.export.info); switch (info) { case NBD_INFO_EXPORT: if (len != sizeof h->sbuf.or.payload.export) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "handshake: incorrect NBD_INFO_EXPORT option reply length"); return 0; } exportsize = be64toh (h->sbuf.or.payload.export.exportsize); eflags = be16toh (h->sbuf.or.payload.export.eflags); if (nbd_internal_set_size_and_flags (h, exportsize, eflags) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } break; default: /* XXX Handle other info types, like NBD_INFO_BLOCK_SIZE */ debug (h, "skipping unknown NBD_REP_INFO type %d", be16toh (h->sbuf.or.payload.export.info)); break; } } /* Server is allowed to send any number of NBD_REP_INFO, read next one. */ h->rbuf = &h->sbuf; h->rlen = sizeof (h->sbuf.or.option_reply); SET_NEXT_STATE (STATE_NEWSTYLE_OPT_GO_RECV_REPLY); return 0; case NBD_REP_ERR_UNSUP: debug (h, "server is confused by NBD_OPT_GO, continuing anyway"); SET_NEXT_STATE (STATE_NEWSTYLE_OPT_EXPORT_NAME_START); return 0; default: if (handle_reply_error (h) == 0) { /* Decode expected known errors into a nicer string */ switch (reply) { case NBD_REP_ERR_POLICY: case NBD_REP_ERR_PLATFORM: set_error (0, "handshake: server policy prevents NBD_OPT_GO"); break; case NBD_REP_ERR_INVALID: case NBD_REP_ERR_TOO_BIG: set_error (EINVAL, "handshake: server rejected NBD_OPT_GO as invalid"); break; case NBD_REP_ERR_TLS_REQD: set_error (ENOTSUP, "handshake: server requires TLS encryption first"); break; case NBD_REP_ERR_UNKNOWN: set_error (ENOENT, "handshake: server has no export named '%s'", h->export_name); break; case NBD_REP_ERR_SHUTDOWN: set_error (ESHUTDOWN, "handshake: server is shutting down"); break; case NBD_REP_ERR_BLOCK_SIZE_REQD: set_error (EINVAL, "handshake: server requires specific block sizes"); break; default: set_error (0, "handshake: unknown reply from NBD_OPT_GO: 0x%" PRIx32, reply); } } SET_NEXT_STATE (STATE_DEAD); return 0; } } int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_CHECK_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_GO_CHECK_REPLY; r = enter_STATE_NEWSTYLE_OPT_GO_CHECK_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_GO.CHECK_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_EXPORT_NAME.START: Try to send newstyle NBD_OPT_EXPORT_NAME to end handshake */ static int enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 22 "generator/states-newstyle-opt-export-name.c" h->sbuf.option.version = htobe64 (NBD_NEW_VERSION); h->sbuf.option.option = htobe32 (NBD_OPT_EXPORT_NAME); h->sbuf.option.optlen = strlen (h->export_name); h->wbuf = &h->sbuf; h->wlen = sizeof h->sbuf.option; h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_EXPORT_NAME_START; r = enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_EXPORT_NAME.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_EXPORT_NAME.SEND: Send newstyle NBD_OPT_EXPORT_NAME to end handshake */ static int enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 32 "generator/states-newstyle-opt-export-name.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->wbuf = h->export_name; h->wlen = strlen (h->export_name); SET_NEXT_STATE (STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND; r = enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_EXPORT_NAME.SEND", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_EXPORT_NAME.SEND_EXPORT: Send newstyle NBD_OPT_EXPORT_NAME export name */ static int enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 42 "generator/states-newstyle-opt-export-name.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.export_name_reply; if ((h->gflags & LIBNBD_HANDSHAKE_FLAG_NO_ZEROES) != 0) h->rlen -= sizeof h->sbuf.export_name_reply.zeroes; SET_NEXT_STATE (STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT; r = enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_EXPORT_NAME.SEND_EXPORT", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_EXPORT_NAME.RECV_REPLY: Receive newstyle NBD_OPT_EXPORT_NAME reply */ static int enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 54 "generator/states-newstyle-opt-export-name.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY); } return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY; r = enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_EXPORT_NAME.RECV_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.OPT_EXPORT_NAME.CHECK_REPLY: Check newstyle NBD_OPT_EXPORT_NAME reply */ static int enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 61 "generator/states-newstyle-opt-export-name.c" uint64_t exportsize; uint16_t eflags; exportsize = be64toh (h->sbuf.export_name_reply.exportsize); eflags = be16toh (h->sbuf.export_name_reply.eflags); if (nbd_internal_set_size_and_flags (h, exportsize, eflags) == -1) { SET_NEXT_STATE (STATE_DEAD); return 0; } SET_NEXT_STATE (STATE_NEWSTYLE_FINISHED); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY; r = enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.OPT_EXPORT_NAME.CHECK_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* NEWSTYLE.FINISHED: Finish off newstyle negotiation */ static int enter_STATE_NEWSTYLE_FINISHED (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 158 "generator/states-newstyle.c" if ((h->gflags & LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE) == 0) h->protocol = "newstyle"; else h->protocol = "newstyle-fixed"; SET_NEXT_STATE (STATE_READY); return 0; } int nbd_internal_enter_STATE_NEWSTYLE_FINISHED (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_NEWSTYLE_FINISHED; r = enter_STATE_NEWSTYLE_FINISHED (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "NEWSTYLE.FINISHED", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* READY: Connection is ready to process NBD commands */ static int enter_STATE_READY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 158 "generator/states.c" if (h->cmds_to_issue) SET_NEXT_STATE (STATE_ISSUE_COMMAND_START); else { assert (h->sock); if (h->sock->ops->pending && h->sock->ops->pending (h->sock)) SET_NEXT_STATE (STATE_REPLY_START); } return 0; } int nbd_internal_enter_STATE_READY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_READY; r = enter_STATE_READY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "READY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* ISSUE_COMMAND.START: Begin issuing a command to the remote server */ static int enter_STATE_ISSUE_COMMAND_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 22 "generator/states-issue-command.c" struct command *cmd; assert (h->cmds_to_issue != NULL); cmd = h->cmds_to_issue; /* Were we interrupted by reading a reply to an earlier command? If * so, we can only get back here after a non-blocking jaunt through * the REPLY engine, which means we are unlikely to be unblocked for * writes yet; we want to advance back to the correct state but * without trying a send_from_wbuf that will likely return 1. */ if (h->wlen) { if (h->in_write_payload) SET_NEXT_STATE_AND_BLOCK (STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD); else SET_NEXT_STATE_AND_BLOCK (STATE_ISSUE_COMMAND_SEND_REQUEST); return 0; } h->request.magic = htobe32 (NBD_REQUEST_MAGIC); h->request.flags = htobe16 (cmd->flags); h->request.type = htobe16 (cmd->type); h->request.handle = htobe64 (cmd->cookie); h->request.offset = htobe64 (cmd->offset); h->request.count = htobe32 ((uint32_t) cmd->count); h->wbuf = &h->request; h->wlen = sizeof (h->request); if (cmd->type == NBD_CMD_WRITE || cmd->next) h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_ISSUE_COMMAND_SEND_REQUEST); return 0; } int nbd_internal_enter_STATE_ISSUE_COMMAND_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_ISSUE_COMMAND_START; r = enter_STATE_ISSUE_COMMAND_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "ISSUE_COMMAND.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* ISSUE_COMMAND.SEND_REQUEST: Sending a request to the remote server */ static int enter_STATE_ISSUE_COMMAND_SEND_REQUEST (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 55 "generator/states-issue-command.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD); } return 0; } int nbd_internal_enter_STATE_ISSUE_COMMAND_SEND_REQUEST (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_ISSUE_COMMAND_SEND_REQUEST; r = enter_STATE_ISSUE_COMMAND_SEND_REQUEST (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "ISSUE_COMMAND.SEND_REQUEST", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* ISSUE_COMMAND.PAUSE_SEND_REQUEST: Interrupt send request to receive an earlier command's reply */ static int enter_STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 62 "generator/states-issue-command.c" assert (h->wlen); assert (h->cmds_to_issue != NULL); h->in_write_payload = false; SET_NEXT_STATE (STATE_REPLY_START); return 0; } int nbd_internal_enter_STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST; r = enter_STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "ISSUE_COMMAND.PAUSE_SEND_REQUEST", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* ISSUE_COMMAND.PREPARE_WRITE_PAYLOAD: Prepare the write payload to send to the remote server */ static int enter_STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 69 "generator/states-issue-command.c" struct command *cmd; assert (h->cmds_to_issue != NULL); cmd = h->cmds_to_issue; assert (cmd->cookie == be64toh (h->request.handle)); if (cmd->type == NBD_CMD_WRITE) { h->wbuf = cmd->data; h->wlen = cmd->count; if (cmd->next && cmd->count < 64 * 1024) h->wflags = MSG_MORE; SET_NEXT_STATE (STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD); } else SET_NEXT_STATE (STATE_ISSUE_COMMAND_FINISH); return 0; } int nbd_internal_enter_STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD; r = enter_STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "ISSUE_COMMAND.PREPARE_WRITE_PAYLOAD", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* ISSUE_COMMAND.SEND_WRITE_PAYLOAD: Sending the write payload to the remote server */ static int enter_STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 86 "generator/states-issue-command.c" switch (send_from_wbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 0: SET_NEXT_STATE (STATE_ISSUE_COMMAND_FINISH); } return 0; } int nbd_internal_enter_STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD; r = enter_STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "ISSUE_COMMAND.SEND_WRITE_PAYLOAD", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* ISSUE_COMMAND.PAUSE_WRITE_PAYLOAD: Interrupt write payload to receive an earlier command's reply */ static int enter_STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 93 "generator/states-issue-command.c" assert (h->wlen); assert (h->cmds_to_issue != NULL); h->in_write_payload = true; SET_NEXT_STATE (STATE_REPLY_START); return 0; } int nbd_internal_enter_STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD; r = enter_STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "ISSUE_COMMAND.PAUSE_WRITE_PAYLOAD", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* ISSUE_COMMAND.FINISH: Finish issuing a command */ static int enter_STATE_ISSUE_COMMAND_FINISH (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 100 "generator/states-issue-command.c" struct command *cmd; assert (!h->wlen); assert (h->cmds_to_issue != NULL); cmd = h->cmds_to_issue; assert (cmd->cookie == be64toh (h->request.handle)); h->cmds_to_issue = cmd->next; if (h->cmds_to_issue_tail == cmd) h->cmds_to_issue_tail = NULL; cmd->next = h->cmds_in_flight; h->cmds_in_flight = cmd; SET_NEXT_STATE (STATE_READY); return 0; } int nbd_internal_enter_STATE_ISSUE_COMMAND_FINISH (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_ISSUE_COMMAND_FINISH; r = enter_STATE_ISSUE_COMMAND_FINISH (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "ISSUE_COMMAND.FINISH", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.START: Prepare to receive a reply from the remote server */ static int enter_STATE_REPLY_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 42 "generator/states-reply.c" /* If rlen is non-zero, we are resuming an earlier reply cycle. */ if (h->rlen > 0) { if (h->reply_cmd) { assert (nbd_internal_is_state_processing (h->reply_cmd->state)); SET_NEXT_STATE (h->reply_cmd->state); } else SET_NEXT_STATE (STATE_REPLY_RECV_REPLY); return 0; } /* This state is entered when a read notification is received in the * READY state. Therefore we know the socket is readable here. * Reading a zero length now would indicate that the socket has been * closed by the server and so we should jump to the CLOSED state. * However recv_into_rbuf will fail in this case, so test it as a * special case. */ ssize_t r; /* We read all replies initially as if they are simple replies, but * check the magic in CHECK_SIMPLE_OR_STRUCTURED_REPLY below. * This works because the structured_reply header is larger. */ assert (h->reply_cmd == NULL); assert (h->rlen == 0); h->rbuf = &h->sbuf; h->rlen = sizeof h->sbuf.simple_reply; r = h->sock->ops->recv (h, h->sock, h->rbuf, h->rlen); if (r == -1) { /* This should never happen because when we enter this state we * should have notification that the socket is ready to read. * However if for some reason it does happen, ignore it - we will * reenter this same state again next time the socket is ready to * read. */ if (errno == EAGAIN || errno == EWOULDBLOCK) return 0; /* sock->ops->recv called set_error already. */ SET_NEXT_STATE (STATE_DEAD); return 0; } if (r == 0) { SET_NEXT_STATE (STATE_CLOSED); return 0; } #ifdef DUMP_PACKETS if (h->rbuf != NULL) nbd_internal_hexdump (h->rbuf, r, stderr); #endif h->rbuf += r; h->rlen -= r; SET_NEXT_STATE (STATE_REPLY_RECV_REPLY); return 0; } int nbd_internal_enter_STATE_REPLY_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_START; r = enter_STATE_REPLY_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.RECV_REPLY: Receive a reply from the remote server */ static int enter_STATE_REPLY_RECV_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 102 "generator/states-reply.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: SET_NEXT_STATE (STATE_READY); return 0; case 0: SET_NEXT_STATE (STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY); } return 0; } int nbd_internal_enter_STATE_REPLY_RECV_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_RECV_REPLY; r = enter_STATE_REPLY_RECV_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.RECV_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.CHECK_SIMPLE_OR_STRUCTURED_REPLY: Check if the reply is a simple or structured reply */ static int enter_STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 110 "generator/states-reply.c" struct command *cmd; uint32_t magic; uint64_t cookie; magic = be32toh (h->sbuf.simple_reply.magic); if (magic == NBD_SIMPLE_REPLY_MAGIC) { SET_NEXT_STATE (STATE_REPLY_SIMPLE_REPLY_START); } else if (magic == NBD_STRUCTURED_REPLY_MAGIC) { SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_START); } else { SET_NEXT_STATE (STATE_DEAD); /* We've probably lost synchronization. */ set_error (0, "invalid reply magic"); return 0; } /* NB: This works for both simple and structured replies because the * handle (our cookie) is stored at the same offset. */ cookie = be64toh (h->sbuf.simple_reply.handle); /* Find the command amongst the commands in flight. */ for (cmd = h->cmds_in_flight; cmd != NULL; cmd = cmd->next) { if (cmd->cookie == cookie) break; } if (cmd == NULL) { /* An unexpected structured reply could be skipped, since it * includes a length; similarly an unexpected simple reply can be * skipped if we assume it was not a read. However, it's more * likely we've lost synchronization with the server. */ SET_NEXT_STATE (STATE_DEAD); set_error (0, "no matching cookie found for server reply, " "this is probably a bug in the server"); return 0; } h->reply_cmd = cmd; return 0; } int nbd_internal_enter_STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY; r = enter_STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.CHECK_SIMPLE_OR_STRUCTURED_REPLY", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.SIMPLE_REPLY.START: Parse a simple reply from the server */ static int enter_STATE_REPLY_SIMPLE_REPLY_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 22 "generator/states-reply-simple.c" struct command *cmd = h->reply_cmd; uint32_t error; uint64_t cookie; error = be32toh (h->sbuf.simple_reply.error); cookie = be64toh (h->sbuf.simple_reply.handle); assert (cmd); assert (cmd->cookie == cookie); if (cmd->type == NBD_CMD_READ && h->structured_replies) { set_error (0, "server sent unexpected simple reply for read"); SET_NEXT_STATE(STATE_DEAD); return 0; } cmd->error = nbd_internal_errno_of_nbd_error (error); if (cmd->error == 0 && cmd->type == NBD_CMD_READ) { h->rbuf = cmd->data; h->rlen = cmd->count; cmd->data_seen = true; SET_NEXT_STATE (STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD); } else { SET_NEXT_STATE (STATE_REPLY_FINISH_COMMAND); } return 0; } int nbd_internal_enter_STATE_REPLY_SIMPLE_REPLY_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_SIMPLE_REPLY_START; r = enter_STATE_REPLY_SIMPLE_REPLY_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.SIMPLE_REPLY.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.SIMPLE_REPLY.RECV_READ_PAYLOAD: Receiving the read payload for a simple reply */ static int enter_STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 51 "generator/states-reply-simple.c" struct command *cmd = h->reply_cmd; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (STATE_READY); return 0; case 0: /* guaranteed by START */ assert (cmd); if (CALLBACK_IS_NOT_NULL (cmd->cb.fn.chunk)) { int error = 0; assert (cmd->error == 0); if (CALL_CALLBACK (cmd->cb.fn.chunk, cmd->data, cmd->count, cmd->offset, LIBNBD_READ_DATA, &error) == -1) cmd->error = error ? error : EPROTO; } SET_NEXT_STATE (STATE_REPLY_FINISH_COMMAND); } return 0; } int nbd_internal_enter_STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD; r = enter_STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.SIMPLE_REPLY.RECV_READ_PAYLOAD", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.START: Prepare to receive the remaining part of a structured reply */ static int enter_STATE_REPLY_STRUCTURED_REPLY_START (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 47 "generator/states-reply-structured.c" /* We've only read the simple_reply. The structured_reply is longer, * so read the remaining part. */ if (!h->structured_replies) { set_error (0, "server sent unexpected structured reply"); SET_NEXT_STATE(STATE_DEAD); return 0; } h->rbuf = &h->sbuf; h->rbuf += sizeof h->sbuf.simple_reply; h->rlen = sizeof h->sbuf.sr.structured_reply; h->rlen -= sizeof h->sbuf.simple_reply; SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING); return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_START (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_START; r = enter_STATE_REPLY_STRUCTURED_REPLY_START (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.START", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.RECV_REMAINING: Receiving the remaining part of a structured reply */ static int enter_STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 63 "generator/states-reply-structured.c" switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (STATE_READY); return 0; case 0: SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_CHECK); } return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING; r = enter_STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.RECV_REMAINING", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.CHECK: Parse a structured reply from the server */ static int enter_STATE_REPLY_STRUCTURED_REPLY_CHECK (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 74 "generator/states-reply-structured.c" struct command *cmd = h->reply_cmd; uint16_t flags, type; uint64_t cookie; uint32_t length; flags = be16toh (h->sbuf.sr.structured_reply.flags); type = be16toh (h->sbuf.sr.structured_reply.type); cookie = be64toh (h->sbuf.sr.structured_reply.handle); length = be32toh (h->sbuf.sr.structured_reply.length); assert (cmd); assert (cmd->cookie == cookie); /* Reject a server that replies with too much information, but don't * reject a single structured reply to NBD_CMD_READ on the largest * size we were willing to send. The most likely culprit is a server * that replies with block status with way too many extents, but any * oversized reply is going to take long enough to resync that it is * not worth keeping the connection alive. */ if (length > MAX_REQUEST_SIZE + sizeof h->sbuf.sr.payload.offset_data) { set_error (0, "invalid server reply length"); SET_NEXT_STATE (STATE_DEAD); return 0; } if (NBD_REPLY_TYPE_IS_ERR (type)) { if (length < sizeof h->sbuf.sr.payload.error.error) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "too short length in structured reply error"); return 0; } h->rbuf = &h->sbuf.sr.payload.error.error; h->rlen = sizeof h->sbuf.sr.payload.error.error; SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR); return 0; } else if (type == NBD_REPLY_TYPE_NONE) { if (length != 0) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "invalid length in NBD_REPLY_TYPE_NONE"); return 0; } if (!(flags & NBD_REPLY_FLAG_DONE)) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "NBD_REPLY_FLAG_DONE must be set in NBD_REPLY_TYPE_NONE"); return 0; } SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_FINISH); return 0; } else if (type == NBD_REPLY_TYPE_OFFSET_DATA) { /* The spec states that 0-length requests are unspecified, but * 0-length replies are broken. Still, it's easy enough to support * them as an extension, so we use < instead of <=. */ if (cmd->type != NBD_CMD_READ) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "invalid command for receiving offset-data chunk, " "cmd->type=%" PRIu16 ", " "this is likely to be a bug in the server", cmd->type); return 0; } if (length < sizeof h->sbuf.sr.payload.offset_data) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "too short length in NBD_REPLY_TYPE_OFFSET_DATA"); return 0; } h->rbuf = &h->sbuf.sr.payload.offset_data; h->rlen = sizeof h->sbuf.sr.payload.offset_data; SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA); return 0; } else if (type == NBD_REPLY_TYPE_OFFSET_HOLE) { if (cmd->type != NBD_CMD_READ) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "invalid command for receiving offset-hole chunk, " "cmd->type=%" PRIu16 ", " "this is likely to be a bug in the server", cmd->type); return 0; } if (length != sizeof h->sbuf.sr.payload.offset_hole) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "invalid length in NBD_REPLY_TYPE_OFFSET_HOLE"); return 0; } h->rbuf = &h->sbuf.sr.payload.offset_hole; h->rlen = sizeof h->sbuf.sr.payload.offset_hole; SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE); return 0; } else if (type == NBD_REPLY_TYPE_BLOCK_STATUS) { if (cmd->type != NBD_CMD_BLOCK_STATUS) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "invalid command for receiving block-status chunk, " "cmd->type=%" PRIu16 ", " "this is likely to be a bug in the server", cmd->type); return 0; } /* XXX We should be able to skip the bad reply in these two cases. */ if (length < 12 || ((length-4) & 7) != 0) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "invalid length in NBD_REPLY_TYPE_BLOCK_STATUS"); return 0; } if (CALLBACK_IS_NULL (cmd->cb.fn.extent)) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "not expecting NBD_REPLY_TYPE_BLOCK_STATUS here"); return 0; } /* We read the context ID followed by all the entries into a * single array and deal with it at the end. */ free (h->bs_entries); h->bs_entries = malloc (length); if (h->bs_entries == NULL) { SET_NEXT_STATE (STATE_DEAD); set_error (errno, "malloc"); return 0; } h->rbuf = h->bs_entries; h->rlen = length; SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES); return 0; } else { SET_NEXT_STATE (STATE_DEAD); set_error (0, "unknown structured reply type (%" PRIu16 ")", type); return 0; } } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_CHECK (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_CHECK; r = enter_STATE_REPLY_STRUCTURED_REPLY_CHECK (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.CHECK", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.RECV_ERROR: Receive a structured reply error header */ static int enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 209 "generator/states-reply-structured.c" uint32_t length, msglen; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (STATE_READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); msglen = be16toh (h->sbuf.sr.payload.error.error.len); if (msglen > length - sizeof h->sbuf.sr.payload.error.error || msglen > sizeof h->sbuf.sr.payload.error.msg) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "error message length too large"); return 0; } h->rbuf = h->sbuf.sr.payload.error.msg; h->rlen = msglen; SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE); } return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR; r = enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.RECV_ERROR", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.RECV_ERROR_MESSAGE: Receive a structured reply error message */ static int enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 234 "generator/states-reply-structured.c" uint32_t length, msglen; uint16_t type; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (STATE_READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); msglen = be16toh (h->sbuf.sr.payload.error.error.len); type = be16toh (h->sbuf.sr.structured_reply.type); length -= sizeof h->sbuf.sr.payload.error.error + msglen; if (msglen) debug (h, "structured error server message: %.*s", (int) msglen, h->sbuf.sr.payload.error.msg); /* Special case two specific errors; ignore the tail for all others */ h->rbuf = NULL; h->rlen = length; switch (type) { case NBD_REPLY_TYPE_ERROR: if (length != 0) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "error payload length too large"); return 0; } break; case NBD_REPLY_TYPE_ERROR_OFFSET: if (length != sizeof h->sbuf.sr.payload.error.offset) { SET_NEXT_STATE (STATE_DEAD); set_error (0, "invalid error payload length"); return 0; } h->rbuf = &h->sbuf.sr.payload.error.offset; break; } SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL); } return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE; r = enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.RECV_ERROR_MESSAGE", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.RECV_ERROR_TAIL: Receive a structured reply error tail */ static int enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 279 "generator/states-reply-structured.c" struct command *cmd = h->reply_cmd; uint32_t error; uint64_t offset; uint16_t type; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (STATE_READY); return 0; case 0: error = be32toh (h->sbuf.sr.payload.error.error.error); type = be16toh (h->sbuf.sr.structured_reply.type); assert (cmd); /* guaranteed by CHECK */ error = nbd_internal_errno_of_nbd_error (error); /* The spec requires the server to send a non-zero error */ if (error == NBD_SUCCESS) { debug (h, "server forgot to set error; using EINVAL"); error = NBD_EINVAL; } error = nbd_internal_errno_of_nbd_error (error); /* Sanity check that any error offset is in range, then invoke * user callback if present. */ if (type == NBD_REPLY_TYPE_ERROR_OFFSET) { offset = be64toh (h->sbuf.sr.payload.error.offset); if (! structured_reply_in_bounds (offset, 0, cmd)) { SET_NEXT_STATE (STATE_DEAD); return 0; } if (cmd->type == NBD_CMD_READ && CALLBACK_IS_NOT_NULL (cmd->cb.fn.chunk)) { int scratch = error; /* Different from successful reads: inform the callback about the * current error rather than any earlier one. If the callback fails * without setting errno, then use the server's error below. */ if (CALL_CALLBACK (cmd->cb.fn.chunk, cmd->data + (offset - cmd->offset), 0, offset, LIBNBD_READ_ERROR, &scratch) == -1) if (cmd->error == 0) cmd->error = scratch; } } /* Preserve first error encountered */ if (cmd->error == 0) cmd->error = error; SET_NEXT_STATE(STATE_REPLY_STRUCTURED_REPLY_FINISH); } return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL; r = enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.RECV_ERROR_TAIL", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA: Receive a structured reply offset-data header */ static int enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 339 "generator/states-reply-structured.c" struct command *cmd = h->reply_cmd; uint64_t offset; uint32_t length; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (STATE_READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); offset = be64toh (h->sbuf.sr.payload.offset_data.offset); assert (cmd); /* guaranteed by CHECK */ assert (cmd->data && cmd->type == NBD_CMD_READ); cmd->data_seen = true; /* Length of the data following. */ length -= 8; /* Is the data within bounds? */ if (! structured_reply_in_bounds (offset, length, cmd)) { SET_NEXT_STATE (STATE_DEAD); return 0; } /* Now this is the byte offset in the read buffer. */ offset -= cmd->offset; /* Set up to receive the data directly to the user buffer. */ h->rbuf = cmd->data + offset; h->rlen = length; SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA); } return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA; r = enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA_DATA: Receive a structured reply offset-data block of data */ static int enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 377 "generator/states-reply-structured.c" struct command *cmd = h->reply_cmd; uint64_t offset; uint32_t length; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (STATE_READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); offset = be64toh (h->sbuf.sr.payload.offset_data.offset); assert (cmd); /* guaranteed by CHECK */ if (CALLBACK_IS_NOT_NULL (cmd->cb.fn.chunk)) { int error = cmd->error; if (CALL_CALLBACK (cmd->cb.fn.chunk, cmd->data + (offset - cmd->offset), length - sizeof offset, offset, LIBNBD_READ_DATA, &error) == -1) if (cmd->error == 0) cmd->error = error ? error : EPROTO; } SET_NEXT_STATE (STATE_REPLY_STRUCTURED_REPLY_FINISH); } return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA; r = enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA_DATA", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.RECV_OFFSET_HOLE: Receive a structured reply offset-hole header */ static int enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 407 "generator/states-reply-structured.c" struct command *cmd = h->reply_cmd; uint64_t offset; uint32_t length; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (STATE_READY); return 0; case 0: offset = be64toh (h->sbuf.sr.payload.offset_hole.offset); length = be32toh (h->sbuf.sr.payload.offset_hole.length); assert (cmd); /* guaranteed by CHECK */ assert (cmd->data && cmd->type == NBD_CMD_READ); cmd->data_seen = true; /* Is the data within bounds? */ if (! structured_reply_in_bounds (offset, length, cmd)) { SET_NEXT_STATE (STATE_DEAD); return 0; } /* Now this is the byte offset in the read buffer. */ offset -= cmd->offset; /* The spec states that 0-length requests are unspecified, but * 0-length replies are broken. Still, it's easy enough to support * them as an extension, and this works even when length == 0. */ memset (cmd->data + offset, 0, length); if (CALLBACK_IS_NOT_NULL (cmd->cb.fn.chunk)) { int error = cmd->error; if (CALL_CALLBACK (cmd->cb.fn.chunk, cmd->data + offset, length, cmd->offset + offset, LIBNBD_READ_HOLE, &error) == -1) if (cmd->error == 0) cmd->error = error ? error : EPROTO; } SET_NEXT_STATE(STATE_REPLY_STRUCTURED_REPLY_FINISH); } return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE; r = enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.RECV_OFFSET_HOLE", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.RECV_BS_ENTRIES: Receive a structured reply block-status payload */ static int enter_STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 455 "generator/states-reply-structured.c" struct command *cmd = h->reply_cmd; uint32_t length; size_t i; uint32_t context_id; struct meta_context *meta_context; switch (recv_into_rbuf (h)) { case -1: SET_NEXT_STATE (STATE_DEAD); return 0; case 1: save_reply_state (h); SET_NEXT_STATE (STATE_READY); return 0; case 0: length = be32toh (h->sbuf.sr.structured_reply.length); assert (cmd); /* guaranteed by CHECK */ assert (cmd->type == NBD_CMD_BLOCK_STATUS); assert (CALLBACK_IS_NOT_NULL (cmd->cb.fn.extent)); assert (h->bs_entries); assert (length >= 12); /* Need to byte-swap the entries returned, but apart from that we * don't validate them. */ for (i = 0; i < length/4; ++i) h->bs_entries[i] = be32toh (h->bs_entries[i]); /* Look up the context ID. */ context_id = h->bs_entries[0]; for (meta_context = h->meta_contexts; meta_context; meta_context = meta_context->next) if (context_id == meta_context->context_id) break; if (meta_context) { /* Call the caller's extent function. */ int error = cmd->error; if (CALL_CALLBACK (cmd->cb.fn.extent, meta_context->name, cmd->offset, &h->bs_entries[1], (length-4) / 4, &error) == -1) if (cmd->error == 0) cmd->error = error ? error : EPROTO; } else /* Emit a debug message, but ignore it. */ debug (h, "server sent unexpected meta context ID %" PRIu32, context_id); SET_NEXT_STATE(STATE_REPLY_STRUCTURED_REPLY_FINISH); } return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES; r = enter_STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.RECV_BS_ENTRIES", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.STRUCTURED_REPLY.FINISH: Finish receiving a structured reply */ static int enter_STATE_REPLY_STRUCTURED_REPLY_FINISH (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 511 "generator/states-reply-structured.c" uint16_t flags; flags = be16toh (h->sbuf.sr.structured_reply.flags); if (flags & NBD_REPLY_FLAG_DONE) { SET_NEXT_STATE (STATE_REPLY_FINISH_COMMAND); } else { h->reply_cmd = NULL; SET_NEXT_STATE (STATE_READY); } return 0; } int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_FINISH (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_STRUCTURED_REPLY_FINISH; r = enter_STATE_REPLY_STRUCTURED_REPLY_FINISH (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.STRUCTURED_REPLY.FINISH", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* REPLY.FINISH_COMMAND: Finish receiving a command */ static int enter_STATE_REPLY_FINISH_COMMAND (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 151 "generator/states-reply.c" struct command *prev_cmd, *cmd; uint64_t cookie; bool retire; /* NB: This works for both simple and structured replies because the * handle (our cookie) is stored at the same offset. */ cookie = be64toh (h->sbuf.simple_reply.handle); /* Find the command amongst the commands in flight. */ for (cmd = h->cmds_in_flight, prev_cmd = NULL; cmd != NULL; prev_cmd = cmd, cmd = cmd->next) { if (cmd->cookie == cookie) break; } assert (cmd != NULL); assert (h->reply_cmd == cmd); h->reply_cmd = NULL; retire = cmd->type == NBD_CMD_DISC; /* Notify the user */ if (CALLBACK_IS_NOT_NULL (cmd->cb.completion)) { int error = cmd->error; int r; assert (cmd->type != NBD_CMD_DISC); r = CALL_CALLBACK (cmd->cb.completion, &error); switch (r) { case -1: if (error) cmd->error = error; break; case 1: retire = true; break; } } /* Move it to the end of the cmds_done list. */ if (prev_cmd != NULL) prev_cmd->next = cmd->next; else h->cmds_in_flight = cmd->next; cmd->next = NULL; if (retire) nbd_internal_retire_and_free_command (cmd); else { if (h->cmds_done_tail != NULL) h->cmds_done_tail = h->cmds_done_tail->next = cmd; else { assert (h->cmds_done == NULL); h->cmds_done = h->cmds_done_tail = cmd; } } h->in_flight--; assert (h->in_flight >= 0); SET_NEXT_STATE (STATE_READY); return 0; } int nbd_internal_enter_STATE_REPLY_FINISH_COMMAND (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_REPLY_FINISH_COMMAND; r = enter_STATE_REPLY_FINISH_COMMAND (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "REPLY.FINISH_COMMAND", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* DEAD: Connection is in an unrecoverable error state, can only be closed */ static int enter_STATE_DEAD (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 168 "generator/states.c" /* The caller should have used set_error() before reaching here */ assert (nbd_get_error ()); abort_commands (h, &h->cmds_to_issue); abort_commands (h, &h->cmds_in_flight); h->in_flight = 0; if (h->sock) { h->sock->ops->close (h->sock); h->sock = NULL; } return -1; } int nbd_internal_enter_STATE_DEAD (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_DEAD; r = enter_STATE_DEAD (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "DEAD", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } /* CLOSED: Connection is closed */ static int enter_STATE_CLOSED (struct nbd_handle *h, enum state *next_state, bool *blocked) { #line 180 "generator/states.c" abort_commands (h, &h->cmds_to_issue); abort_commands (h, &h->cmds_in_flight); h->in_flight = 0; if (h->sock) { h->sock->ops->close (h->sock); h->sock = NULL; } return 0; } int nbd_internal_enter_STATE_CLOSED (struct nbd_handle *h, bool *blocked) { int r; enum state next_state = STATE_CLOSED; r = enter_STATE_CLOSED (h, &next_state, blocked); if (get_next_state (h) != next_state) { debug (h, "transition: %s -> %s", "CLOSED", nbd_internal_state_short_string (next_state)); set_next_state (h, next_state); } return r; } ���������������������������������������������libnbd-1.2.2/lib/states-run.c�����������������������������������������������������������������������0000444�0001750�0001750�00000163544�13552713647�012736� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator generator/states*.c * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <assert.h> #include "libnbd.h" #include "internal.h" /* Run the state machine based on an external event until it would block. */ int nbd_internal_run (struct nbd_handle *h, enum external_event ev) { int r; bool blocked; /* Validate and handle the external event. */ switch (get_next_state (h)) { case STATE_START: switch (ev) { case cmd_create: goto ok; case cmd_connect_sockaddr: set_next_state (h, STATE_CONNECT_START); debug (h, "event %s: %s -> %s", "CmdConnectSockAddr", "START", "CONNECT.START"); goto ok; case cmd_connect_tcp: set_next_state (h, STATE_CONNECT_TCP_START); debug (h, "event %s: %s -> %s", "CmdConnectTCP", "START", "CONNECT_TCP.START"); goto ok; case cmd_connect_command: set_next_state (h, STATE_CONNECT_COMMAND_START); debug (h, "event %s: %s -> %s", "CmdConnectCommand", "START", "CONNECT_COMMAND.START"); goto ok; case cmd_connect_sa: set_next_state (h, STATE_CONNECT_SA_START); debug (h, "event %s: %s -> %s", "CmdConnectSA", "START", "CONNECT_SA.START"); goto ok; case cmd_connect_socket: set_next_state (h, STATE_MAGIC_START); debug (h, "event %s: %s -> %s", "CmdConnectSocket", "START", "MAGIC.START"); goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_CONNECT_START: switch (ev) { case notify_write: set_next_state (h, STATE_CONNECT_CONNECTING); debug (h, "event %s: %s -> %s", "NotifyWrite", "CONNECT.START", "CONNECT.CONNECTING"); goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_CONNECT_CONNECTING: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_CONNECT_TCP_START: break; case STATE_CONNECT_TCP_CONNECT: switch (ev) { case notify_write: set_next_state (h, STATE_CONNECT_TCP_CONNECTING); debug (h, "event %s: %s -> %s", "NotifyWrite", "CONNECT_TCP.CONNECT", "CONNECT_TCP.CONNECTING"); goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_CONNECT_TCP_CONNECTING: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_CONNECT_TCP_NEXT_ADDRESS: break; case STATE_CONNECT_COMMAND_START: break; case STATE_CONNECT_SA_START: break; case STATE_MAGIC_START: break; case STATE_MAGIC_RECV_MAGIC: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_MAGIC_CHECK_MAGIC: break; case STATE_OLDSTYLE_START: break; case STATE_OLDSTYLE_RECV_REMAINING: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_OLDSTYLE_CHECK: break; case STATE_NEWSTYLE_START: break; case STATE_NEWSTYLE_RECV_GFLAGS: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_CHECK_GFLAGS: break; case STATE_NEWSTYLE_SEND_CFLAGS: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_STARTTLS_START: break; case STATE_NEWSTYLE_OPT_STARTTLS_SEND: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY: break; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START: break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY: break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START: break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY: break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY: break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY: break; case STATE_NEWSTYLE_OPT_GO_START: break; case STATE_NEWSTYLE_OPT_GO_SEND: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORT: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_GO_CHECK_REPLY: break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_START: break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT: switch (ev) { case notify_write: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY: switch (ev) { case notify_read: goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY: break; case STATE_NEWSTYLE_FINISHED: break; case STATE_READY: switch (ev) { case cmd_issue: set_next_state (h, STATE_ISSUE_COMMAND_START); debug (h, "event %s: %s -> %s", "CmdIssue", "READY", "ISSUE_COMMAND.START"); goto ok; case notify_read: set_next_state (h, STATE_REPLY_START); debug (h, "event %s: %s -> %s", "NotifyRead", "READY", "REPLY.START"); goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_ISSUE_COMMAND_START: break; case STATE_ISSUE_COMMAND_SEND_REQUEST: switch (ev) { case notify_write: goto ok; case notify_read: set_next_state (h, STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST); debug (h, "event %s: %s -> %s", "NotifyRead", "ISSUE_COMMAND.SEND_REQUEST", "ISSUE_COMMAND.PAUSE_SEND_REQUEST"); goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST: break; case STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD: break; case STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD: switch (ev) { case notify_write: goto ok; case notify_read: set_next_state (h, STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD); debug (h, "event %s: %s -> %s", "NotifyRead", "ISSUE_COMMAND.SEND_WRITE_PAYLOAD", "ISSUE_COMMAND.PAUSE_WRITE_PAYLOAD"); goto ok; default: ; /* nothing, silence GCC warning */ } break; case STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD: break; case STATE_ISSUE_COMMAND_FINISH: break; case STATE_REPLY_START: break; case STATE_REPLY_RECV_REPLY: break; case STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY: break; case STATE_REPLY_SIMPLE_REPLY_START: break; case STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD: break; case STATE_REPLY_STRUCTURED_REPLY_START: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING: break; case STATE_REPLY_STRUCTURED_REPLY_CHECK: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES: break; case STATE_REPLY_STRUCTURED_REPLY_FINISH: break; case STATE_REPLY_FINISH_COMMAND: break; case STATE_DEAD: break; case STATE_CLOSED: break; } set_error (EINVAL, "external event %d is invalid in state %s", ev, nbd_internal_state_short_string (get_next_state (h))); return -1; ok: do { blocked = true; /* Run a single step. */ switch (get_next_state (h)) { case STATE_START: r = nbd_internal_enter_STATE_START (h, &blocked); break; case STATE_CONNECT_START: r = nbd_internal_enter_STATE_CONNECT_START (h, &blocked); break; case STATE_CONNECT_CONNECTING: r = nbd_internal_enter_STATE_CONNECT_CONNECTING (h, &blocked); break; case STATE_CONNECT_TCP_START: r = nbd_internal_enter_STATE_CONNECT_TCP_START (h, &blocked); break; case STATE_CONNECT_TCP_CONNECT: r = nbd_internal_enter_STATE_CONNECT_TCP_CONNECT (h, &blocked); break; case STATE_CONNECT_TCP_CONNECTING: r = nbd_internal_enter_STATE_CONNECT_TCP_CONNECTING (h, &blocked); break; case STATE_CONNECT_TCP_NEXT_ADDRESS: r = nbd_internal_enter_STATE_CONNECT_TCP_NEXT_ADDRESS (h, &blocked); break; case STATE_CONNECT_COMMAND_START: r = nbd_internal_enter_STATE_CONNECT_COMMAND_START (h, &blocked); break; case STATE_CONNECT_SA_START: r = nbd_internal_enter_STATE_CONNECT_SA_START (h, &blocked); break; case STATE_MAGIC_START: r = nbd_internal_enter_STATE_MAGIC_START (h, &blocked); break; case STATE_MAGIC_RECV_MAGIC: r = nbd_internal_enter_STATE_MAGIC_RECV_MAGIC (h, &blocked); break; case STATE_MAGIC_CHECK_MAGIC: r = nbd_internal_enter_STATE_MAGIC_CHECK_MAGIC (h, &blocked); break; case STATE_OLDSTYLE_START: r = nbd_internal_enter_STATE_OLDSTYLE_START (h, &blocked); break; case STATE_OLDSTYLE_RECV_REMAINING: r = nbd_internal_enter_STATE_OLDSTYLE_RECV_REMAINING (h, &blocked); break; case STATE_OLDSTYLE_CHECK: r = nbd_internal_enter_STATE_OLDSTYLE_CHECK (h, &blocked); break; case STATE_NEWSTYLE_START: r = nbd_internal_enter_STATE_NEWSTYLE_START (h, &blocked); break; case STATE_NEWSTYLE_RECV_GFLAGS: r = nbd_internal_enter_STATE_NEWSTYLE_RECV_GFLAGS (h, &blocked); break; case STATE_NEWSTYLE_CHECK_GFLAGS: r = nbd_internal_enter_STATE_NEWSTYLE_CHECK_GFLAGS (h, &blocked); break; case STATE_NEWSTYLE_SEND_CFLAGS: r = nbd_internal_enter_STATE_NEWSTYLE_SEND_CFLAGS (h, &blocked); break; case STATE_NEWSTYLE_OPT_STARTTLS_START: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_START (h, &blocked); break; case STATE_NEWSTYLE_OPT_STARTTLS_SEND: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_SEND (h, &blocked); break; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD (h, &blocked); break; case STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ (h, &blocked); break; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE (h, &blocked); break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START (h, &blocked); break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND (h, &blocked); break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD (h, &blocked); break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD (h, &blocked); break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_GO_START: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_START (h, &blocked); break; case STATE_NEWSTYLE_OPT_GO_SEND: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND (h, &blocked); break; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN (h, &blocked); break; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORT: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORT (h, &blocked); break; case STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS (h, &blocked); break; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD (h, &blocked); break; case STATE_NEWSTYLE_OPT_GO_CHECK_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_CHECK_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_START: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_START (h, &blocked); break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND (h, &blocked); break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT (h, &blocked); break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY (h, &blocked); break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY: r = nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY (h, &blocked); break; case STATE_NEWSTYLE_FINISHED: r = nbd_internal_enter_STATE_NEWSTYLE_FINISHED (h, &blocked); break; case STATE_READY: r = nbd_internal_enter_STATE_READY (h, &blocked); break; case STATE_ISSUE_COMMAND_START: r = nbd_internal_enter_STATE_ISSUE_COMMAND_START (h, &blocked); break; case STATE_ISSUE_COMMAND_SEND_REQUEST: r = nbd_internal_enter_STATE_ISSUE_COMMAND_SEND_REQUEST (h, &blocked); break; case STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST: r = nbd_internal_enter_STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST (h, &blocked); break; case STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD: r = nbd_internal_enter_STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD (h, &blocked); break; case STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD: r = nbd_internal_enter_STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD (h, &blocked); break; case STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD: r = nbd_internal_enter_STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD (h, &blocked); break; case STATE_ISSUE_COMMAND_FINISH: r = nbd_internal_enter_STATE_ISSUE_COMMAND_FINISH (h, &blocked); break; case STATE_REPLY_START: r = nbd_internal_enter_STATE_REPLY_START (h, &blocked); break; case STATE_REPLY_RECV_REPLY: r = nbd_internal_enter_STATE_REPLY_RECV_REPLY (h, &blocked); break; case STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY: r = nbd_internal_enter_STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY (h, &blocked); break; case STATE_REPLY_SIMPLE_REPLY_START: r = nbd_internal_enter_STATE_REPLY_SIMPLE_REPLY_START (h, &blocked); break; case STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD: r = nbd_internal_enter_STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_START: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_START (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_CHECK: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_CHECK (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES (h, &blocked); break; case STATE_REPLY_STRUCTURED_REPLY_FINISH: r = nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_FINISH (h, &blocked); break; case STATE_REPLY_FINISH_COMMAND: r = nbd_internal_enter_STATE_REPLY_FINISH_COMMAND (h, &blocked); break; case STATE_DEAD: r = nbd_internal_enter_STATE_DEAD (h, &blocked); break; case STATE_CLOSED: r = nbd_internal_enter_STATE_CLOSED (h, &blocked); break; default: abort (); /* Should never happen, but keeps GCC happy. */ } if (r == -1) { assert (nbd_get_error () != NULL); return -1; } } while (!blocked); return 0; } /* Returns whether in the given state read or write would be valid. * NB: is_locked = false, may_set_error = false. */ int nbd_internal_aio_get_direction (enum state state) { int r = 0; switch (state) { case STATE_START: break; case STATE_CONNECT_START: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_CONNECT_CONNECTING: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_CONNECT_TCP_START: break; case STATE_CONNECT_TCP_CONNECT: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_CONNECT_TCP_CONNECTING: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_CONNECT_TCP_NEXT_ADDRESS: break; case STATE_CONNECT_COMMAND_START: break; case STATE_CONNECT_SA_START: break; case STATE_MAGIC_START: break; case STATE_MAGIC_RECV_MAGIC: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_MAGIC_CHECK_MAGIC: break; case STATE_OLDSTYLE_START: break; case STATE_OLDSTYLE_RECV_REMAINING: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_OLDSTYLE_CHECK: break; case STATE_NEWSTYLE_START: break; case STATE_NEWSTYLE_RECV_GFLAGS: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_CHECK_GFLAGS: break; case STATE_NEWSTYLE_SEND_CFLAGS: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_STARTTLS_START: break; case STATE_NEWSTYLE_OPT_STARTTLS_SEND: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY: break; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START: break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY: break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START: break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY: break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY: break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY: break; case STATE_NEWSTYLE_OPT_GO_START: break; case STATE_NEWSTYLE_OPT_GO_SEND: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORT: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_GO_CHECK_REPLY: break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_START: break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT: r |= LIBNBD_AIO_DIRECTION_WRITE; break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY: break; case STATE_NEWSTYLE_FINISHED: break; case STATE_READY: r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_ISSUE_COMMAND_START: break; case STATE_ISSUE_COMMAND_SEND_REQUEST: r |= LIBNBD_AIO_DIRECTION_WRITE; r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST: break; case STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD: break; case STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD: r |= LIBNBD_AIO_DIRECTION_WRITE; r |= LIBNBD_AIO_DIRECTION_READ; break; case STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD: break; case STATE_ISSUE_COMMAND_FINISH: break; case STATE_REPLY_START: break; case STATE_REPLY_RECV_REPLY: break; case STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY: break; case STATE_REPLY_SIMPLE_REPLY_START: break; case STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD: break; case STATE_REPLY_STRUCTURED_REPLY_START: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING: break; case STATE_REPLY_STRUCTURED_REPLY_CHECK: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE: break; case STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES: break; case STATE_REPLY_STRUCTURED_REPLY_FINISH: break; case STATE_REPLY_FINISH_COMMAND: break; case STATE_DEAD: break; case STATE_CLOSED: break; } return r; } /* Other functions associated with the state machine. */ const char * nbd_internal_state_short_string (enum state state) { switch (state) { case STATE_START: return "START"; case STATE_CONNECT_START: return "CONNECT.START"; case STATE_CONNECT_CONNECTING: return "CONNECT.CONNECTING"; case STATE_CONNECT_TCP_START: return "CONNECT_TCP.START"; case STATE_CONNECT_TCP_CONNECT: return "CONNECT_TCP.CONNECT"; case STATE_CONNECT_TCP_CONNECTING: return "CONNECT_TCP.CONNECTING"; case STATE_CONNECT_TCP_NEXT_ADDRESS: return "CONNECT_TCP.NEXT_ADDRESS"; case STATE_CONNECT_COMMAND_START: return "CONNECT_COMMAND.START"; case STATE_CONNECT_SA_START: return "CONNECT_SA.START"; case STATE_MAGIC_START: return "MAGIC.START"; case STATE_MAGIC_RECV_MAGIC: return "MAGIC.RECV_MAGIC"; case STATE_MAGIC_CHECK_MAGIC: return "MAGIC.CHECK_MAGIC"; case STATE_OLDSTYLE_START: return "OLDSTYLE.START"; case STATE_OLDSTYLE_RECV_REMAINING: return "OLDSTYLE.RECV_REMAINING"; case STATE_OLDSTYLE_CHECK: return "OLDSTYLE.CHECK"; case STATE_NEWSTYLE_START: return "NEWSTYLE.START"; case STATE_NEWSTYLE_RECV_GFLAGS: return "NEWSTYLE.RECV_GFLAGS"; case STATE_NEWSTYLE_CHECK_GFLAGS: return "NEWSTYLE.CHECK_GFLAGS"; case STATE_NEWSTYLE_SEND_CFLAGS: return "NEWSTYLE.SEND_CFLAGS"; case STATE_NEWSTYLE_OPT_STARTTLS_START: return "NEWSTYLE.OPT_STARTTLS.START"; case STATE_NEWSTYLE_OPT_STARTTLS_SEND: return "NEWSTYLE.OPT_STARTTLS.SEND"; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY: return "NEWSTYLE.OPT_STARTTLS.RECV_REPLY"; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD: return "NEWSTYLE.OPT_STARTTLS.RECV_REPLY_PAYLOAD"; case STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY: return "NEWSTYLE.OPT_STARTTLS.CHECK_REPLY"; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ: return "NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_READ"; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE: return "NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_WRITE"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START: return "NEWSTYLE.OPT_STRUCTURED_REPLY.START"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND: return "NEWSTYLE.OPT_STRUCTURED_REPLY.SEND"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY: return "NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD: return "NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY_PAYLOAD"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY: return "NEWSTYLE.OPT_STRUCTURED_REPLY.CHECK_REPLY"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START: return "NEWSTYLE.OPT_SET_META_CONTEXT.START"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAMELEN"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAME"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_NRQUERIES"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY: return "NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_NEXT_QUERY"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERYLEN"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERY"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY: return "NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_FOR_REPLY"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY: return "NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD: return "NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY_PAYLOAD"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY: return "NEWSTYLE.OPT_SET_META_CONTEXT.CHECK_REPLY"; case STATE_NEWSTYLE_OPT_GO_START: return "NEWSTYLE.OPT_GO.START"; case STATE_NEWSTYLE_OPT_GO_SEND: return "NEWSTYLE.OPT_GO.SEND"; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN: return "NEWSTYLE.OPT_GO.SEND_EXPORTNAMELEN"; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORT: return "NEWSTYLE.OPT_GO.SEND_EXPORT"; case STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS: return "NEWSTYLE.OPT_GO.SEND_NRINFOS"; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY: return "NEWSTYLE.OPT_GO.RECV_REPLY"; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD: return "NEWSTYLE.OPT_GO.RECV_REPLY_PAYLOAD"; case STATE_NEWSTYLE_OPT_GO_CHECK_REPLY: return "NEWSTYLE.OPT_GO.CHECK_REPLY"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_START: return "NEWSTYLE.OPT_EXPORT_NAME.START"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND: return "NEWSTYLE.OPT_EXPORT_NAME.SEND"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT: return "NEWSTYLE.OPT_EXPORT_NAME.SEND_EXPORT"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY: return "NEWSTYLE.OPT_EXPORT_NAME.RECV_REPLY"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY: return "NEWSTYLE.OPT_EXPORT_NAME.CHECK_REPLY"; case STATE_NEWSTYLE_FINISHED: return "NEWSTYLE.FINISHED"; case STATE_READY: return "READY"; case STATE_ISSUE_COMMAND_START: return "ISSUE_COMMAND.START"; case STATE_ISSUE_COMMAND_SEND_REQUEST: return "ISSUE_COMMAND.SEND_REQUEST"; case STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST: return "ISSUE_COMMAND.PAUSE_SEND_REQUEST"; case STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD: return "ISSUE_COMMAND.PREPARE_WRITE_PAYLOAD"; case STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD: return "ISSUE_COMMAND.SEND_WRITE_PAYLOAD"; case STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD: return "ISSUE_COMMAND.PAUSE_WRITE_PAYLOAD"; case STATE_ISSUE_COMMAND_FINISH: return "ISSUE_COMMAND.FINISH"; case STATE_REPLY_START: return "REPLY.START"; case STATE_REPLY_RECV_REPLY: return "REPLY.RECV_REPLY"; case STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY: return "REPLY.CHECK_SIMPLE_OR_STRUCTURED_REPLY"; case STATE_REPLY_SIMPLE_REPLY_START: return "REPLY.SIMPLE_REPLY.START"; case STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD: return "REPLY.SIMPLE_REPLY.RECV_READ_PAYLOAD"; case STATE_REPLY_STRUCTURED_REPLY_START: return "REPLY.STRUCTURED_REPLY.START"; case STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING: return "REPLY.STRUCTURED_REPLY.RECV_REMAINING"; case STATE_REPLY_STRUCTURED_REPLY_CHECK: return "REPLY.STRUCTURED_REPLY.CHECK"; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR: return "REPLY.STRUCTURED_REPLY.RECV_ERROR"; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE: return "REPLY.STRUCTURED_REPLY.RECV_ERROR_MESSAGE"; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL: return "REPLY.STRUCTURED_REPLY.RECV_ERROR_TAIL"; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA: return "REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA"; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA: return "REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA_DATA"; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE: return "REPLY.STRUCTURED_REPLY.RECV_OFFSET_HOLE"; case STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES: return "REPLY.STRUCTURED_REPLY.RECV_BS_ENTRIES"; case STATE_REPLY_STRUCTURED_REPLY_FINISH: return "REPLY.STRUCTURED_REPLY.FINISH"; case STATE_REPLY_FINISH_COMMAND: return "REPLY.FINISH_COMMAND"; case STATE_DEAD: return "DEAD"; case STATE_CLOSED: return "CLOSED"; } /* This function is only used for debug messages, and * this should never happen. */ return "UNKNOWN!"; } const char * nbd_unlocked_connection_state (struct nbd_handle *h) { switch (get_next_state (h)) { case STATE_START: return "START" ": " "Handle after being initially created"; case STATE_CONNECT_START: return "CONNECT.START" ": " "Initial call to connect(2) on the socket"; case STATE_CONNECT_CONNECTING: return "CONNECT.CONNECTING" ": " "Connecting to the remote server"; case STATE_CONNECT_TCP_START: return "CONNECT_TCP.START" ": " "Connect to a remote TCP server"; case STATE_CONNECT_TCP_CONNECT: return "CONNECT_TCP.CONNECT" ": " "Initial call to connect(2) on a TCP socket"; case STATE_CONNECT_TCP_CONNECTING: return "CONNECT_TCP.CONNECTING" ": " "Connecting to the remote server over a TCP socket"; case STATE_CONNECT_TCP_NEXT_ADDRESS: return "CONNECT_TCP.NEXT_ADDRESS" ": " "Connecting to the next address over a TCP socket"; case STATE_CONNECT_COMMAND_START: return "CONNECT_COMMAND.START" ": " "Connect to a subprocess"; case STATE_CONNECT_SA_START: return "CONNECT_SA.START" ": " "Connect to a subprocess with systemd socket activation"; case STATE_MAGIC_START: return "MAGIC.START" ": " "Prepare to receive the magic identification from remote"; case STATE_MAGIC_RECV_MAGIC: return "MAGIC.RECV_MAGIC" ": " "Receive initial magic identification from remote"; case STATE_MAGIC_CHECK_MAGIC: return "MAGIC.CHECK_MAGIC" ": " "Check magic and version sent by remote"; case STATE_OLDSTYLE_START: return "OLDSTYLE.START" ": " "Prepare to receive remainder of oldstyle header"; case STATE_OLDSTYLE_RECV_REMAINING: return "OLDSTYLE.RECV_REMAINING" ": " "Receive remainder of oldstyle header"; case STATE_OLDSTYLE_CHECK: return "OLDSTYLE.CHECK" ": " "Check oldstyle header"; case STATE_NEWSTYLE_START: return "NEWSTYLE.START" ": " "Prepare to receive newstyle gflags from remote"; case STATE_NEWSTYLE_RECV_GFLAGS: return "NEWSTYLE.RECV_GFLAGS" ": " "Receive newstyle gflags from remote"; case STATE_NEWSTYLE_CHECK_GFLAGS: return "NEWSTYLE.CHECK_GFLAGS" ": " "Check global flags sent by remote"; case STATE_NEWSTYLE_SEND_CFLAGS: return "NEWSTYLE.SEND_CFLAGS" ": " "Send newstyle client flags to remote"; case STATE_NEWSTYLE_OPT_STARTTLS_START: return "NEWSTYLE.OPT_STARTTLS.START" ": " "Try to send newstyle NBD_OPT_STARTTLS to upgrade to TLS"; case STATE_NEWSTYLE_OPT_STARTTLS_SEND: return "NEWSTYLE.OPT_STARTTLS.SEND" ": " "Send newstyle NBD_OPT_STARTTLS to upgrade to TLS"; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY: return "NEWSTYLE.OPT_STARTTLS.RECV_REPLY" ": " "Receive newstyle NBD_OPT_STARTTLS reply"; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD: return "NEWSTYLE.OPT_STARTTLS.RECV_REPLY_PAYLOAD" ": " "Receive any newstyle NBD_OPT_STARTTLS reply payload"; case STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY: return "NEWSTYLE.OPT_STARTTLS.CHECK_REPLY" ": " "Check newstyle NBD_OPT_STARTTLS reply"; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ: return "NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_READ" ": " "TLS handshake (reading)"; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE: return "NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_WRITE" ": " "TLS handshake (writing)"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START: return "NEWSTYLE.OPT_STRUCTURED_REPLY.START" ": " "Try to negotiate newstyle NBD_OPT_STRUCTURED_REPLY"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND: return "NEWSTYLE.OPT_STRUCTURED_REPLY.SEND" ": " "Send newstyle NBD_OPT_STRUCTURED_REPLY negotiation request"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY: return "NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY" ": " "Receive newstyle NBD_OPT_STRUCTURED_REPLY option reply"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD: return "NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY_PAYLOAD" ": " "Receive any newstyle NBD_OPT_STRUCTURED_REPLY reply payload"; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY: return "NEWSTYLE.OPT_STRUCTURED_REPLY.CHECK_REPLY" ": " "Check newstyle NBD_OPT_STRUCTURED_REPLY option reply"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START: return "NEWSTYLE.OPT_SET_META_CONTEXT.START" ": " "Try to negotiate newstyle NBD_OPT_SET_META_CONTEXT"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND" ": " "Send newstyle NBD_OPT_SET_META_CONTEXT"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAMELEN" ": " "Send newstyle NBD_OPT_SET_META_CONTEXT export name length"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAME" ": " "Send newstyle NBD_OPT_SET_META_CONTEXT export name"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_NRQUERIES" ": " "Send newstyle NBD_OPT_SET_META_CONTEXT number of queries"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY: return "NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_NEXT_QUERY" ": " "Prepare to send newstyle NBD_OPT_SET_META_CONTEXT query"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERYLEN" ": " "Send newstyle NBD_OPT_SET_META_CONTEXT query length"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY: return "NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERY" ": " "Send newstyle NBD_OPT_SET_META_CONTEXT query"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY: return "NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_FOR_REPLY" ": " "Prepare to receive newstyle NBD_OPT_SET_META_CONTEXT option reply"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY: return "NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY" ": " "Receive newstyle NBD_OPT_SET_META_CONTEXT option reply"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD: return "NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY_PAYLOAD" ": " "Receive newstyle NBD_OPT_SET_META_CONTEXT option reply payload"; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY: return "NEWSTYLE.OPT_SET_META_CONTEXT.CHECK_REPLY" ": " "Check newstyle NBD_OPT_SET_META_CONTEXT option reply"; case STATE_NEWSTYLE_OPT_GO_START: return "NEWSTYLE.OPT_GO.START" ": " "Try to send newstyle NBD_OPT_GO to end handshake"; case STATE_NEWSTYLE_OPT_GO_SEND: return "NEWSTYLE.OPT_GO.SEND" ": " "Send newstyle NBD_OPT_GO to end handshake"; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN: return "NEWSTYLE.OPT_GO.SEND_EXPORTNAMELEN" ": " "Send newstyle NBD_OPT_GO export name length"; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORT: return "NEWSTYLE.OPT_GO.SEND_EXPORT" ": " "Send newstyle NBD_OPT_GO export name"; case STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS: return "NEWSTYLE.OPT_GO.SEND_NRINFOS" ": " "Send newstyle NBD_OPT_GO number of infos"; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY: return "NEWSTYLE.OPT_GO.RECV_REPLY" ": " "Receive newstyle NBD_OPT_GO reply"; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD: return "NEWSTYLE.OPT_GO.RECV_REPLY_PAYLOAD" ": " "Receive newstyle NBD_OPT_GO reply payload"; case STATE_NEWSTYLE_OPT_GO_CHECK_REPLY: return "NEWSTYLE.OPT_GO.CHECK_REPLY" ": " "Check newstyle NBD_OPT_GO reply"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_START: return "NEWSTYLE.OPT_EXPORT_NAME.START" ": " "Try to send newstyle NBD_OPT_EXPORT_NAME to end handshake"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND: return "NEWSTYLE.OPT_EXPORT_NAME.SEND" ": " "Send newstyle NBD_OPT_EXPORT_NAME to end handshake"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT: return "NEWSTYLE.OPT_EXPORT_NAME.SEND_EXPORT" ": " "Send newstyle NBD_OPT_EXPORT_NAME export name"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY: return "NEWSTYLE.OPT_EXPORT_NAME.RECV_REPLY" ": " "Receive newstyle NBD_OPT_EXPORT_NAME reply"; case STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY: return "NEWSTYLE.OPT_EXPORT_NAME.CHECK_REPLY" ": " "Check newstyle NBD_OPT_EXPORT_NAME reply"; case STATE_NEWSTYLE_FINISHED: return "NEWSTYLE.FINISHED" ": " "Finish off newstyle negotiation"; case STATE_READY: return "READY" ": " "Connection is ready to process NBD commands"; case STATE_ISSUE_COMMAND_START: return "ISSUE_COMMAND.START" ": " "Begin issuing a command to the remote server"; case STATE_ISSUE_COMMAND_SEND_REQUEST: return "ISSUE_COMMAND.SEND_REQUEST" ": " "Sending a request to the remote server"; case STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST: return "ISSUE_COMMAND.PAUSE_SEND_REQUEST" ": " "Interrupt send request to receive an earlier command's reply"; case STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD: return "ISSUE_COMMAND.PREPARE_WRITE_PAYLOAD" ": " "Prepare the write payload to send to the remote server"; case STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD: return "ISSUE_COMMAND.SEND_WRITE_PAYLOAD" ": " "Sending the write payload to the remote server"; case STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD: return "ISSUE_COMMAND.PAUSE_WRITE_PAYLOAD" ": " "Interrupt write payload to receive an earlier command's reply"; case STATE_ISSUE_COMMAND_FINISH: return "ISSUE_COMMAND.FINISH" ": " "Finish issuing a command"; case STATE_REPLY_START: return "REPLY.START" ": " "Prepare to receive a reply from the remote server"; case STATE_REPLY_RECV_REPLY: return "REPLY.RECV_REPLY" ": " "Receive a reply from the remote server"; case STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY: return "REPLY.CHECK_SIMPLE_OR_STRUCTURED_REPLY" ": " "Check if the reply is a simple or structured reply"; case STATE_REPLY_SIMPLE_REPLY_START: return "REPLY.SIMPLE_REPLY.START" ": " "Parse a simple reply from the server"; case STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD: return "REPLY.SIMPLE_REPLY.RECV_READ_PAYLOAD" ": " "Receiving the read payload for a simple reply"; case STATE_REPLY_STRUCTURED_REPLY_START: return "REPLY.STRUCTURED_REPLY.START" ": " "Prepare to receive the remaining part of a structured reply"; case STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING: return "REPLY.STRUCTURED_REPLY.RECV_REMAINING" ": " "Receiving the remaining part of a structured reply"; case STATE_REPLY_STRUCTURED_REPLY_CHECK: return "REPLY.STRUCTURED_REPLY.CHECK" ": " "Parse a structured reply from the server"; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR: return "REPLY.STRUCTURED_REPLY.RECV_ERROR" ": " "Receive a structured reply error header"; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE: return "REPLY.STRUCTURED_REPLY.RECV_ERROR_MESSAGE" ": " "Receive a structured reply error message"; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL: return "REPLY.STRUCTURED_REPLY.RECV_ERROR_TAIL" ": " "Receive a structured reply error tail"; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA: return "REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA" ": " "Receive a structured reply offset-data header"; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA: return "REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA_DATA" ": " "Receive a structured reply offset-data block of data"; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE: return "REPLY.STRUCTURED_REPLY.RECV_OFFSET_HOLE" ": " "Receive a structured reply offset-hole header"; case STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES: return "REPLY.STRUCTURED_REPLY.RECV_BS_ENTRIES" ": " "Receive a structured reply block-status payload"; case STATE_REPLY_STRUCTURED_REPLY_FINISH: return "REPLY.STRUCTURED_REPLY.FINISH" ": " "Finish receiving a structured reply"; case STATE_REPLY_FINISH_COMMAND: return "REPLY.FINISH_COMMAND" ": " "Finish receiving a command"; case STATE_DEAD: return "DEAD" ": " "Connection is in an unrecoverable error state, can only be closed"; case STATE_CLOSED: return "CLOSED" ": " "Connection is closed"; } return NULL; } /* Map a state to its group name. */ enum state_group nbd_internal_state_group (enum state state) { switch (state) { case STATE_START: return GROUP_TOP; case STATE_CONNECT_START: return GROUP_CONNECT; case STATE_CONNECT_CONNECTING: return GROUP_CONNECT; case STATE_CONNECT_TCP_START: return GROUP_CONNECT_TCP; case STATE_CONNECT_TCP_CONNECT: return GROUP_CONNECT_TCP; case STATE_CONNECT_TCP_CONNECTING: return GROUP_CONNECT_TCP; case STATE_CONNECT_TCP_NEXT_ADDRESS: return GROUP_CONNECT_TCP; case STATE_CONNECT_COMMAND_START: return GROUP_CONNECT_COMMAND; case STATE_CONNECT_SA_START: return GROUP_CONNECT_SA; case STATE_MAGIC_START: return GROUP_MAGIC; case STATE_MAGIC_RECV_MAGIC: return GROUP_MAGIC; case STATE_MAGIC_CHECK_MAGIC: return GROUP_MAGIC; case STATE_OLDSTYLE_START: return GROUP_OLDSTYLE; case STATE_OLDSTYLE_RECV_REMAINING: return GROUP_OLDSTYLE; case STATE_OLDSTYLE_CHECK: return GROUP_OLDSTYLE; case STATE_NEWSTYLE_START: return GROUP_NEWSTYLE; case STATE_NEWSTYLE_RECV_GFLAGS: return GROUP_NEWSTYLE; case STATE_NEWSTYLE_CHECK_GFLAGS: return GROUP_NEWSTYLE; case STATE_NEWSTYLE_SEND_CFLAGS: return GROUP_NEWSTYLE; case STATE_NEWSTYLE_OPT_STARTTLS_START: return GROUP_NEWSTYLE_OPT_STARTTLS; case STATE_NEWSTYLE_OPT_STARTTLS_SEND: return GROUP_NEWSTYLE_OPT_STARTTLS; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY: return GROUP_NEWSTYLE_OPT_STARTTLS; case STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD: return GROUP_NEWSTYLE_OPT_STARTTLS; case STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY: return GROUP_NEWSTYLE_OPT_STARTTLS; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ: return GROUP_NEWSTYLE_OPT_STARTTLS; case STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE: return GROUP_NEWSTYLE_OPT_STARTTLS; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START: return GROUP_NEWSTYLE_OPT_STRUCTURED_REPLY; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND: return GROUP_NEWSTYLE_OPT_STRUCTURED_REPLY; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY: return GROUP_NEWSTYLE_OPT_STRUCTURED_REPLY; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD: return GROUP_NEWSTYLE_OPT_STRUCTURED_REPLY; case STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY: return GROUP_NEWSTYLE_OPT_STRUCTURED_REPLY; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY: return GROUP_NEWSTYLE_OPT_SET_META_CONTEXT; case STATE_NEWSTYLE_OPT_GO_START: return GROUP_NEWSTYLE_OPT_GO; case STATE_NEWSTYLE_OPT_GO_SEND: return GROUP_NEWSTYLE_OPT_GO; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN: return GROUP_NEWSTYLE_OPT_GO; case STATE_NEWSTYLE_OPT_GO_SEND_EXPORT: return GROUP_NEWSTYLE_OPT_GO; case STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS: return GROUP_NEWSTYLE_OPT_GO; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY: return GROUP_NEWSTYLE_OPT_GO; case STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD: return GROUP_NEWSTYLE_OPT_GO; case STATE_NEWSTYLE_OPT_GO_CHECK_REPLY: return GROUP_NEWSTYLE_OPT_GO; case STATE_NEWSTYLE_OPT_EXPORT_NAME_START: return GROUP_NEWSTYLE_OPT_EXPORT_NAME; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND: return GROUP_NEWSTYLE_OPT_EXPORT_NAME; case STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT: return GROUP_NEWSTYLE_OPT_EXPORT_NAME; case STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY: return GROUP_NEWSTYLE_OPT_EXPORT_NAME; case STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY: return GROUP_NEWSTYLE_OPT_EXPORT_NAME; case STATE_NEWSTYLE_FINISHED: return GROUP_NEWSTYLE; case STATE_READY: return GROUP_TOP; case STATE_ISSUE_COMMAND_START: return GROUP_ISSUE_COMMAND; case STATE_ISSUE_COMMAND_SEND_REQUEST: return GROUP_ISSUE_COMMAND; case STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST: return GROUP_ISSUE_COMMAND; case STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD: return GROUP_ISSUE_COMMAND; case STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD: return GROUP_ISSUE_COMMAND; case STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD: return GROUP_ISSUE_COMMAND; case STATE_ISSUE_COMMAND_FINISH: return GROUP_ISSUE_COMMAND; case STATE_REPLY_START: return GROUP_REPLY; case STATE_REPLY_RECV_REPLY: return GROUP_REPLY; case STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY: return GROUP_REPLY; case STATE_REPLY_SIMPLE_REPLY_START: return GROUP_REPLY_SIMPLE_REPLY; case STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD: return GROUP_REPLY_SIMPLE_REPLY; case STATE_REPLY_STRUCTURED_REPLY_START: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_CHECK: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_STRUCTURED_REPLY_FINISH: return GROUP_REPLY_STRUCTURED_REPLY; case STATE_REPLY_FINISH_COMMAND: return GROUP_REPLY; case STATE_DEAD: return GROUP_TOP; case STATE_CLOSED: return GROUP_TOP; default: abort (); /* Should never happen, but keeps GCC happy. */ } } /* Map a state group to its parent group. */ enum state_group nbd_internal_state_group_parent (enum state_group group) { switch (group) { case GROUP_TOP: return GROUP_TOP; case GROUP_CONNECT: return GROUP_TOP; case GROUP_CONNECT_TCP: return GROUP_TOP; case GROUP_CONNECT_COMMAND: return GROUP_TOP; case GROUP_CONNECT_SA: return GROUP_TOP; case GROUP_MAGIC: return GROUP_TOP; case GROUP_OLDSTYLE: return GROUP_TOP; case GROUP_NEWSTYLE: return GROUP_TOP; case GROUP_NEWSTYLE_OPT_STARTTLS: return GROUP_NEWSTYLE; case GROUP_NEWSTYLE_OPT_STRUCTURED_REPLY: return GROUP_NEWSTYLE; case GROUP_NEWSTYLE_OPT_SET_META_CONTEXT: return GROUP_NEWSTYLE; case GROUP_NEWSTYLE_OPT_GO: return GROUP_NEWSTYLE; case GROUP_NEWSTYLE_OPT_EXPORT_NAME: return GROUP_NEWSTYLE; case GROUP_ISSUE_COMMAND: return GROUP_TOP; case GROUP_REPLY: return GROUP_TOP; case GROUP_REPLY_SIMPLE_REPLY: return GROUP_REPLY; case GROUP_REPLY_STRUCTURED_REPLY: return GROUP_REPLY; default: abort (); /* Should never happen, but keeps GCC happy. */ } }; ������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/states.h���������������������������������������������������������������������������0000444�0001750�0001750�00000050716�13552713647�012135� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator generator/states*.c * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ enum state { /* START: Handle after being initially created */ STATE_START, /* CONNECT.START: Initial call to connect(2) on the socket */ STATE_CONNECT_START, /* CONNECT.CONNECTING: Connecting to the remote server */ STATE_CONNECT_CONNECTING, /* CONNECT_TCP.START: Connect to a remote TCP server */ STATE_CONNECT_TCP_START, /* CONNECT_TCP.CONNECT: Initial call to connect(2) on a TCP socket */ STATE_CONNECT_TCP_CONNECT, /* CONNECT_TCP.CONNECTING: Connecting to the remote server over a TCP socket */ STATE_CONNECT_TCP_CONNECTING, /* CONNECT_TCP.NEXT_ADDRESS: Connecting to the next address over a TCP socket */ STATE_CONNECT_TCP_NEXT_ADDRESS, /* CONNECT_COMMAND.START: Connect to a subprocess */ STATE_CONNECT_COMMAND_START, /* CONNECT_SA.START: Connect to a subprocess with systemd socket activation */ STATE_CONNECT_SA_START, /* MAGIC.START: Prepare to receive the magic identification from remote */ STATE_MAGIC_START, /* MAGIC.RECV_MAGIC: Receive initial magic identification from remote */ STATE_MAGIC_RECV_MAGIC, /* MAGIC.CHECK_MAGIC: Check magic and version sent by remote */ STATE_MAGIC_CHECK_MAGIC, /* OLDSTYLE.START: Prepare to receive remainder of oldstyle header */ STATE_OLDSTYLE_START, /* OLDSTYLE.RECV_REMAINING: Receive remainder of oldstyle header */ STATE_OLDSTYLE_RECV_REMAINING, /* OLDSTYLE.CHECK: Check oldstyle header */ STATE_OLDSTYLE_CHECK, /* NEWSTYLE.START: Prepare to receive newstyle gflags from remote */ STATE_NEWSTYLE_START, /* NEWSTYLE.RECV_GFLAGS: Receive newstyle gflags from remote */ STATE_NEWSTYLE_RECV_GFLAGS, /* NEWSTYLE.CHECK_GFLAGS: Check global flags sent by remote */ STATE_NEWSTYLE_CHECK_GFLAGS, /* NEWSTYLE.SEND_CFLAGS: Send newstyle client flags to remote */ STATE_NEWSTYLE_SEND_CFLAGS, /* NEWSTYLE.OPT_STARTTLS.START: Try to send newstyle NBD_OPT_STARTTLS to upgrade to TLS */ STATE_NEWSTYLE_OPT_STARTTLS_START, /* NEWSTYLE.OPT_STARTTLS.SEND: Send newstyle NBD_OPT_STARTTLS to upgrade to TLS */ STATE_NEWSTYLE_OPT_STARTTLS_SEND, /* NEWSTYLE.OPT_STARTTLS.RECV_REPLY: Receive newstyle NBD_OPT_STARTTLS reply */ STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY, /* NEWSTYLE.OPT_STARTTLS.RECV_REPLY_PAYLOAD: Receive any newstyle NBD_OPT_STARTTLS reply payload */ STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD, /* NEWSTYLE.OPT_STARTTLS.CHECK_REPLY: Check newstyle NBD_OPT_STARTTLS reply */ STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY, /* NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_READ: TLS handshake (reading) */ STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ, /* NEWSTYLE.OPT_STARTTLS.TLS_HANDSHAKE_WRITE: TLS handshake (writing) */ STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE, /* NEWSTYLE.OPT_STRUCTURED_REPLY.START: Try to negotiate newstyle NBD_OPT_STRUCTURED_REPLY */ STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START, /* NEWSTYLE.OPT_STRUCTURED_REPLY.SEND: Send newstyle NBD_OPT_STRUCTURED_REPLY negotiation request */ STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND, /* NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY: Receive newstyle NBD_OPT_STRUCTURED_REPLY option reply */ STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY, /* NEWSTYLE.OPT_STRUCTURED_REPLY.RECV_REPLY_PAYLOAD: Receive any newstyle NBD_OPT_STRUCTURED_REPLY reply payload */ STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD, /* NEWSTYLE.OPT_STRUCTURED_REPLY.CHECK_REPLY: Check newstyle NBD_OPT_STRUCTURED_REPLY option reply */ STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY, /* NEWSTYLE.OPT_SET_META_CONTEXT.START: Try to negotiate newstyle NBD_OPT_SET_META_CONTEXT */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START, /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND: Send newstyle NBD_OPT_SET_META_CONTEXT */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND, /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAMELEN: Send newstyle NBD_OPT_SET_META_CONTEXT export name length */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN, /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_EXPORTNAME: Send newstyle NBD_OPT_SET_META_CONTEXT export name */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME, /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_NRQUERIES: Send newstyle NBD_OPT_SET_META_CONTEXT number of queries */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES, /* NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_NEXT_QUERY: Prepare to send newstyle NBD_OPT_SET_META_CONTEXT query */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY, /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERYLEN: Send newstyle NBD_OPT_SET_META_CONTEXT query length */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN, /* NEWSTYLE.OPT_SET_META_CONTEXT.SEND_QUERY: Send newstyle NBD_OPT_SET_META_CONTEXT query */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY, /* NEWSTYLE.OPT_SET_META_CONTEXT.PREPARE_FOR_REPLY: Prepare to receive newstyle NBD_OPT_SET_META_CONTEXT option reply */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY, /* NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY: Receive newstyle NBD_OPT_SET_META_CONTEXT option reply */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY, /* NEWSTYLE.OPT_SET_META_CONTEXT.RECV_REPLY_PAYLOAD: Receive newstyle NBD_OPT_SET_META_CONTEXT option reply payload */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD, /* NEWSTYLE.OPT_SET_META_CONTEXT.CHECK_REPLY: Check newstyle NBD_OPT_SET_META_CONTEXT option reply */ STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY, /* NEWSTYLE.OPT_GO.START: Try to send newstyle NBD_OPT_GO to end handshake */ STATE_NEWSTYLE_OPT_GO_START, /* NEWSTYLE.OPT_GO.SEND: Send newstyle NBD_OPT_GO to end handshake */ STATE_NEWSTYLE_OPT_GO_SEND, /* NEWSTYLE.OPT_GO.SEND_EXPORTNAMELEN: Send newstyle NBD_OPT_GO export name length */ STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN, /* NEWSTYLE.OPT_GO.SEND_EXPORT: Send newstyle NBD_OPT_GO export name */ STATE_NEWSTYLE_OPT_GO_SEND_EXPORT, /* NEWSTYLE.OPT_GO.SEND_NRINFOS: Send newstyle NBD_OPT_GO number of infos */ STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS, /* NEWSTYLE.OPT_GO.RECV_REPLY: Receive newstyle NBD_OPT_GO reply */ STATE_NEWSTYLE_OPT_GO_RECV_REPLY, /* NEWSTYLE.OPT_GO.RECV_REPLY_PAYLOAD: Receive newstyle NBD_OPT_GO reply payload */ STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD, /* NEWSTYLE.OPT_GO.CHECK_REPLY: Check newstyle NBD_OPT_GO reply */ STATE_NEWSTYLE_OPT_GO_CHECK_REPLY, /* NEWSTYLE.OPT_EXPORT_NAME.START: Try to send newstyle NBD_OPT_EXPORT_NAME to end handshake */ STATE_NEWSTYLE_OPT_EXPORT_NAME_START, /* NEWSTYLE.OPT_EXPORT_NAME.SEND: Send newstyle NBD_OPT_EXPORT_NAME to end handshake */ STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND, /* NEWSTYLE.OPT_EXPORT_NAME.SEND_EXPORT: Send newstyle NBD_OPT_EXPORT_NAME export name */ STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT, /* NEWSTYLE.OPT_EXPORT_NAME.RECV_REPLY: Receive newstyle NBD_OPT_EXPORT_NAME reply */ STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY, /* NEWSTYLE.OPT_EXPORT_NAME.CHECK_REPLY: Check newstyle NBD_OPT_EXPORT_NAME reply */ STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY, /* NEWSTYLE.FINISHED: Finish off newstyle negotiation */ STATE_NEWSTYLE_FINISHED, /* READY: Connection is ready to process NBD commands */ STATE_READY, /* ISSUE_COMMAND.START: Begin issuing a command to the remote server */ STATE_ISSUE_COMMAND_START, /* ISSUE_COMMAND.SEND_REQUEST: Sending a request to the remote server */ STATE_ISSUE_COMMAND_SEND_REQUEST, /* ISSUE_COMMAND.PAUSE_SEND_REQUEST: Interrupt send request to receive an earlier command's reply */ STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST, /* ISSUE_COMMAND.PREPARE_WRITE_PAYLOAD: Prepare the write payload to send to the remote server */ STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD, /* ISSUE_COMMAND.SEND_WRITE_PAYLOAD: Sending the write payload to the remote server */ STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD, /* ISSUE_COMMAND.PAUSE_WRITE_PAYLOAD: Interrupt write payload to receive an earlier command's reply */ STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD, /* ISSUE_COMMAND.FINISH: Finish issuing a command */ STATE_ISSUE_COMMAND_FINISH, /* REPLY.START: Prepare to receive a reply from the remote server */ STATE_REPLY_START, /* REPLY.RECV_REPLY: Receive a reply from the remote server */ STATE_REPLY_RECV_REPLY, /* REPLY.CHECK_SIMPLE_OR_STRUCTURED_REPLY: Check if the reply is a simple or structured reply */ STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY, /* REPLY.SIMPLE_REPLY.START: Parse a simple reply from the server */ STATE_REPLY_SIMPLE_REPLY_START, /* REPLY.SIMPLE_REPLY.RECV_READ_PAYLOAD: Receiving the read payload for a simple reply */ STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD, /* REPLY.STRUCTURED_REPLY.START: Prepare to receive the remaining part of a structured reply */ STATE_REPLY_STRUCTURED_REPLY_START, /* REPLY.STRUCTURED_REPLY.RECV_REMAINING: Receiving the remaining part of a structured reply */ STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING, /* REPLY.STRUCTURED_REPLY.CHECK: Parse a structured reply from the server */ STATE_REPLY_STRUCTURED_REPLY_CHECK, /* REPLY.STRUCTURED_REPLY.RECV_ERROR: Receive a structured reply error header */ STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR, /* REPLY.STRUCTURED_REPLY.RECV_ERROR_MESSAGE: Receive a structured reply error message */ STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE, /* REPLY.STRUCTURED_REPLY.RECV_ERROR_TAIL: Receive a structured reply error tail */ STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL, /* REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA: Receive a structured reply offset-data header */ STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA, /* REPLY.STRUCTURED_REPLY.RECV_OFFSET_DATA_DATA: Receive a structured reply offset-data block of data */ STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA, /* REPLY.STRUCTURED_REPLY.RECV_OFFSET_HOLE: Receive a structured reply offset-hole header */ STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE, /* REPLY.STRUCTURED_REPLY.RECV_BS_ENTRIES: Receive a structured reply block-status payload */ STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES, /* REPLY.STRUCTURED_REPLY.FINISH: Finish receiving a structured reply */ STATE_REPLY_STRUCTURED_REPLY_FINISH, /* REPLY.FINISH_COMMAND: Finish receiving a command */ STATE_REPLY_FINISH_COMMAND, /* DEAD: Connection is in an unrecoverable error state, can only be closed */ STATE_DEAD, /* CLOSED: Connection is closed */ STATE_CLOSED, }; /* These correspond to the external events in generator/generator. */ enum external_event { notify_read, notify_write, cmd_create, cmd_connect_sockaddr, cmd_connect_tcp, cmd_connect_command, cmd_connect_sa, cmd_connect_socket, cmd_issue, }; /* State groups. */ enum state_group { GROUP_TOP, GROUP_CONNECT, GROUP_CONNECT_TCP, GROUP_CONNECT_COMMAND, GROUP_CONNECT_SA, GROUP_MAGIC, GROUP_OLDSTYLE, GROUP_NEWSTYLE, GROUP_NEWSTYLE_OPT_STARTTLS, GROUP_NEWSTYLE_OPT_STRUCTURED_REPLY, GROUP_NEWSTYLE_OPT_SET_META_CONTEXT, GROUP_NEWSTYLE_OPT_GO, GROUP_NEWSTYLE_OPT_EXPORT_NAME, GROUP_ISSUE_COMMAND, GROUP_REPLY, GROUP_REPLY_SIMPLE_REPLY, GROUP_REPLY_STRUCTURED_REPLY, }; /* State transitions defined in states.c. */ extern int nbd_internal_enter_STATE_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_CONNECT_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_CONNECT_CONNECTING (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_CONNECT_TCP_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_CONNECT_TCP_CONNECT (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_CONNECT_TCP_CONNECTING (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_CONNECT_TCP_NEXT_ADDRESS (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_CONNECT_COMMAND_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_CONNECT_SA_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_MAGIC_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_MAGIC_RECV_MAGIC (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_MAGIC_CHECK_MAGIC (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_OLDSTYLE_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_OLDSTYLE_RECV_REMAINING (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_OLDSTYLE_CHECK (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_RECV_GFLAGS (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_CHECK_GFLAGS (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_SEND_CFLAGS (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_SEND (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_RECV_REPLY_PAYLOAD (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_CHECK_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_READ (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STARTTLS_TLS_HANDSHAKE_WRITE (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_SEND (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_RECV_REPLY_PAYLOAD (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_STRUCTURED_REPLY_CHECK_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAMELEN (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_EXPORTNAME (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_NRQUERIES (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_NEXT_QUERY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERYLEN (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_SEND_QUERY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_PREPARE_FOR_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_RECV_REPLY_PAYLOAD (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_SET_META_CONTEXT_CHECK_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORTNAMELEN (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND_EXPORT (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_SEND_NRINFOS (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_RECV_REPLY_PAYLOAD (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_GO_CHECK_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_SEND_EXPORT (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_RECV_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_OPT_EXPORT_NAME_CHECK_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_NEWSTYLE_FINISHED (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_READY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_ISSUE_COMMAND_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_ISSUE_COMMAND_SEND_REQUEST (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_ISSUE_COMMAND_PAUSE_SEND_REQUEST (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_ISSUE_COMMAND_PREPARE_WRITE_PAYLOAD (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_ISSUE_COMMAND_SEND_WRITE_PAYLOAD (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_ISSUE_COMMAND_PAUSE_WRITE_PAYLOAD (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_ISSUE_COMMAND_FINISH (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_RECV_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_CHECK_SIMPLE_OR_STRUCTURED_REPLY (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_SIMPLE_REPLY_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_SIMPLE_REPLY_RECV_READ_PAYLOAD (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_START (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_REMAINING (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_CHECK (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_MESSAGE (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_ERROR_TAIL (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_DATA_DATA (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_OFFSET_HOLE (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_RECV_BS_ENTRIES (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_STRUCTURED_REPLY_FINISH (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_REPLY_FINISH_COMMAND (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_DEAD (struct nbd_handle *h, bool *blocked); extern int nbd_internal_enter_STATE_CLOSED (struct nbd_handle *h, bool *blocked); ��������������������������������������������������libnbd-1.2.2/lib/unlocked.h�������������������������������������������������������������������������0000444�0001750�0001750�00000027032�13563236630�012423� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef LIBNBD_UNLOCKED_H #define LIBNBD_UNLOCKED_H extern int nbd_unlocked_set_debug (struct nbd_handle *h, bool debug); extern int nbd_unlocked_get_debug (struct nbd_handle *h); extern int nbd_unlocked_set_debug_callback (struct nbd_handle *h, nbd_debug_callback debug_callback); extern int nbd_unlocked_clear_debug_callback (struct nbd_handle *h); extern int nbd_unlocked_set_handle_name (struct nbd_handle *h, const char *handle_name); extern char * nbd_unlocked_get_handle_name (struct nbd_handle *h); extern int nbd_unlocked_set_export_name (struct nbd_handle *h, const char *export_name); extern char * nbd_unlocked_get_export_name (struct nbd_handle *h); extern int nbd_unlocked_set_tls (struct nbd_handle *h, int tls); extern int nbd_unlocked_get_tls (struct nbd_handle *h); extern int nbd_unlocked_get_tls_negotiated (struct nbd_handle *h); extern int nbd_unlocked_set_tls_certificates (struct nbd_handle *h, const char *dir); extern int nbd_unlocked_set_tls_verify_peer (struct nbd_handle *h, bool verify); extern int nbd_unlocked_get_tls_verify_peer (struct nbd_handle *h); extern int nbd_unlocked_set_tls_username (struct nbd_handle *h, const char *username); extern char * nbd_unlocked_get_tls_username (struct nbd_handle *h); extern int nbd_unlocked_set_tls_psk_file (struct nbd_handle *h, const char *filename); extern int nbd_unlocked_set_request_structured_replies (struct nbd_handle *h, bool request); extern int nbd_unlocked_get_request_structured_replies (struct nbd_handle *h); extern int nbd_unlocked_get_structured_replies_negotiated (struct nbd_handle *h); extern int nbd_unlocked_set_handshake_flags (struct nbd_handle *h, uint32_t flags); extern unsigned nbd_unlocked_get_handshake_flags (struct nbd_handle *h); extern int nbd_unlocked_add_meta_context (struct nbd_handle *h, const char *name); extern int nbd_unlocked_set_uri_allow_transports (struct nbd_handle *h, uint32_t mask); extern int nbd_unlocked_set_uri_allow_tls (struct nbd_handle *h, int tls); extern int nbd_unlocked_set_uri_allow_local_file (struct nbd_handle *h, bool allow); extern int nbd_unlocked_connect_uri (struct nbd_handle *h, const char *uri); extern int nbd_unlocked_connect_unix (struct nbd_handle *h, const char *unixsocket); extern int nbd_unlocked_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port); extern int nbd_unlocked_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port); extern int nbd_unlocked_connect_socket (struct nbd_handle *h, int sock); extern int nbd_unlocked_connect_command (struct nbd_handle *h, char **argv); extern int nbd_unlocked_connect_systemd_socket_activation (struct nbd_handle *h, char **argv); extern int nbd_unlocked_is_read_only (struct nbd_handle *h); extern int nbd_unlocked_can_flush (struct nbd_handle *h); extern int nbd_unlocked_can_fua (struct nbd_handle *h); extern int nbd_unlocked_is_rotational (struct nbd_handle *h); extern int nbd_unlocked_can_trim (struct nbd_handle *h); extern int nbd_unlocked_can_zero (struct nbd_handle *h); extern int nbd_unlocked_can_fast_zero (struct nbd_handle *h); extern int nbd_unlocked_can_df (struct nbd_handle *h); extern int nbd_unlocked_can_multi_conn (struct nbd_handle *h); extern int nbd_unlocked_can_cache (struct nbd_handle *h); extern int nbd_unlocked_can_meta_context (struct nbd_handle *h, const char *metacontext); extern const char * nbd_unlocked_get_protocol (struct nbd_handle *h); extern int64_t nbd_unlocked_get_size (struct nbd_handle *h); extern int nbd_unlocked_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, uint32_t flags); extern int nbd_unlocked_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk_callback, uint32_t flags); extern int nbd_unlocked_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, uint32_t flags); extern int nbd_unlocked_shutdown (struct nbd_handle *h, uint32_t flags); extern int nbd_unlocked_flush (struct nbd_handle *h, uint32_t flags); extern int nbd_unlocked_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags); extern int nbd_unlocked_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags); extern int nbd_unlocked_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags); extern int nbd_unlocked_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent_callback, uint32_t flags); extern int nbd_unlocked_poll (struct nbd_handle *h, int timeout); extern int nbd_unlocked_aio_connect (struct nbd_handle *h, const struct sockaddr *addr, socklen_t addrlen); extern int nbd_unlocked_aio_connect_uri (struct nbd_handle *h, const char *uri); extern int nbd_unlocked_aio_connect_unix (struct nbd_handle *h, const char *unixsocket); extern int nbd_unlocked_aio_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port); extern int nbd_unlocked_aio_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port); extern int nbd_unlocked_aio_connect_socket (struct nbd_handle *h, int sock); extern int nbd_unlocked_aio_connect_command (struct nbd_handle *h, char **argv); extern int nbd_unlocked_aio_connect_systemd_socket_activation (struct nbd_handle *h, char **argv); extern int64_t nbd_unlocked_aio_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); extern int64_t nbd_unlocked_aio_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk_callback, nbd_completion_callback completion_callback, uint32_t flags); extern int64_t nbd_unlocked_aio_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); extern int nbd_unlocked_aio_disconnect (struct nbd_handle *h, uint32_t flags); extern int64_t nbd_unlocked_aio_flush (struct nbd_handle *h, nbd_completion_callback completion_callback, uint32_t flags); extern int64_t nbd_unlocked_aio_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); extern int64_t nbd_unlocked_aio_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); extern int64_t nbd_unlocked_aio_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); extern int64_t nbd_unlocked_aio_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent_callback, nbd_completion_callback completion_callback, uint32_t flags); extern int nbd_unlocked_aio_get_fd (struct nbd_handle *h); extern unsigned nbd_unlocked_aio_get_direction (struct nbd_handle *h); extern int nbd_unlocked_aio_notify_read (struct nbd_handle *h); extern int nbd_unlocked_aio_notify_write (struct nbd_handle *h); extern int nbd_unlocked_aio_is_created (struct nbd_handle *h); extern int nbd_unlocked_aio_is_connecting (struct nbd_handle *h); extern int nbd_unlocked_aio_is_ready (struct nbd_handle *h); extern int nbd_unlocked_aio_is_processing (struct nbd_handle *h); extern int nbd_unlocked_aio_is_dead (struct nbd_handle *h); extern int nbd_unlocked_aio_is_closed (struct nbd_handle *h); extern int nbd_unlocked_aio_command_completed (struct nbd_handle *h, int64_t cookie); extern int64_t nbd_unlocked_aio_peek_command_completed (struct nbd_handle *h); extern int nbd_unlocked_aio_in_flight (struct nbd_handle *h); extern const char * nbd_unlocked_connection_state (struct nbd_handle *h); extern const char * nbd_unlocked_get_package_name (struct nbd_handle *h); extern const char * nbd_unlocked_get_version (struct nbd_handle *h); extern int nbd_unlocked_kill_subprocess (struct nbd_handle *h, int signum); extern int nbd_unlocked_supports_tls (struct nbd_handle *h); extern int nbd_unlocked_supports_uri (struct nbd_handle *h); #endif /* LIBNBD_UNLOCKED_H */ ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/uri.c������������������������������������������������������������������������������0000664�0001750�0001750�00000023367�13560111515�011413� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <inttypes.h> #include <string.h> #include <errno.h> #include <assert.h> #include "internal.h" #ifdef HAVE_LIBXML2 #include <libxml/uri.h> /* Connect to an NBD URI. */ int nbd_unlocked_connect_uri (struct nbd_handle *h, const char *uri) { if (nbd_unlocked_aio_connect_uri (h, uri) == -1) return -1; return nbd_internal_wait_until_connected (h); } struct uri_query { char *name; char *value; }; /* Parse the query_raw substring of a URI into a list of decoded queries. * Return the length of the list, or -1 on error. */ static int parse_uri_queries (const char *query_raw, struct uri_query **list) { /* Borrows from libvirt's viruri.c:virURIParseParams() */ const char *end, *eq; const char *query = query_raw; int nqueries = 0; struct uri_query *tmp; if (!query || !*query) return 0; while (*query) { char *name = NULL, *value = NULL; /* Find the next separator, or end of the string. */ end = strchr (query, '&'); if (!end) end = strchr (query, ';'); if (!end) end = query + strlen (query); /* Find the first '=' character between here and end. */ eq = strchr (query, '='); if (eq && eq >= end) eq = NULL; if (end == query) { /* Empty section (eg. "&&"). */ goto next; } else if (!eq) { /* If there is no '=' character, then we have just "name" * and consistent with CGI.pm we assume value is "". */ name = xmlURIUnescapeString (query, end - query, NULL); if (!name) goto error; } else if (eq+1 == end) { /* Or if we have "name=" here (works around annoying * problem when calling xmlURIUnescapeString with len = 0). */ name = xmlURIUnescapeString (query, eq - query, NULL); if (!name) goto error; } else if (query == eq) { /* If the '=' character is at the beginning then we have * "=value" and consistent with CGI.pm we _ignore_ this. */ goto next; } else { /* Otherwise it's "name=value". */ name = xmlURIUnescapeString (query, eq - query, NULL); if (!name) goto error; value = xmlURIUnescapeString (eq+1, end - (eq+1), NULL); if (!value) { free (name); goto error; } } if (!value) { value = strdup (""); if (!value) { free (name); goto error; } } /* Append to the parameter set. */ tmp = realloc (*list, sizeof (*tmp) * (nqueries + 1)); if (tmp == NULL) { free (name); free (value); goto error; } *list = tmp; tmp[nqueries].name = name; tmp[nqueries].value = value; nqueries++; next: query = end; if (*query) query++; /* skip '&' separator */ } return nqueries; error: tmp = *list; while (nqueries-- > 0) { free (tmp[nqueries].name); free (tmp[nqueries].value); } free (tmp); *list = NULL; return -1; } int nbd_unlocked_aio_connect_uri (struct nbd_handle *h, const char *raw_uri) { xmlURIPtr uri = NULL; enum { tcp, unix_sock, vsock } transport; bool tls, socket_required; struct uri_query *queries = NULL; int nqueries = -1; int i, r; int ret = -1; const char *unixsocket = NULL; char port_str[32]; uint32_t cid, svm_port; uri = xmlParseURI (raw_uri); if (!uri) { set_error (EINVAL, "unable to parse URI: %s", raw_uri); goto cleanup; } nqueries = parse_uri_queries (uri->query_raw, &queries); if (nqueries == -1) { set_error (EINVAL, "unable to parse URI queries: %s", uri->query_raw); goto cleanup; } /* Scheme. */ if (uri->scheme) { if (strcmp (uri->scheme, "nbd") == 0) { transport = tcp; tls = false; socket_required = false; } else if (strcmp (uri->scheme, "nbds") == 0) { transport = tcp; tls = true; socket_required = false; } else if (strcmp (uri->scheme, "nbd+unix") == 0) { transport = unix_sock; tls = false; socket_required = true; } else if (strcmp (uri->scheme, "nbds+unix") == 0) { transport = unix_sock; tls = true; socket_required = true; } else if (strcmp (uri->scheme, "nbd+vsock") == 0) { transport = vsock; tls = false; socket_required = false; } else if (strcmp (uri->scheme, "nbds+vsock") == 0) { transport = vsock; tls = true; socket_required = false; } else goto unknown_scheme; } else { unknown_scheme: set_error (EINVAL, "unknown URI scheme: %s", uri->scheme ? : "NULL"); goto cleanup; } /* Insist on the scheme://[authority][/absname][?queries] form. */ if (strncmp (raw_uri + strlen (uri->scheme), "://", 3)) { set_error (EINVAL, "URI must begin with '%s://'", uri->scheme); goto cleanup; } /* Check the transport is allowed. */ if ((transport == tcp && (h->uri_allow_transports & LIBNBD_ALLOW_TRANSPORT_TCP) == 0) || (transport == unix_sock && (h->uri_allow_transports & LIBNBD_ALLOW_TRANSPORT_UNIX) == 0) || (transport == vsock && (h->uri_allow_transports & LIBNBD_ALLOW_TRANSPORT_VSOCK) == 0)) { set_error (EPERM, "URI transport %s is not permitted", uri->scheme); goto cleanup; } /* Check TLS is allowed. */ if ((tls && h->uri_allow_tls == LIBNBD_TLS_DISABLE) || (!tls && h->uri_allow_tls == LIBNBD_TLS_REQUIRE)) { set_error (EPERM, "URI TLS setting %s is not permitted", uri->scheme); goto cleanup; } /* Parse the socket parameter. */ for (i = 0; i < nqueries; i++) { if (strcmp (queries[i].name, "socket") == 0) unixsocket = queries[i].value; } if (socket_required && !unixsocket) { set_error (EINVAL, "cannot parse socket parameter from NBD URI: %s", uri->query_raw ? : "NULL"); goto cleanup; } else if (!socket_required && unixsocket) { set_error (EINVAL, "socket=%s URI query is incompatible with %s", unixsocket, uri->scheme); goto cleanup; } /* TLS */ if (tls && nbd_unlocked_set_tls (h, LIBNBD_TLS_REQUIRE) == -1) goto cleanup; /* Look for some tls-* parameters. XXX More to come. */ for (i = 0; i < nqueries; i++) { if (strcmp (queries[i].name, "tls-psk-file") == 0) { if (! h->uri_allow_local_file) { set_error (EPERM, "local file access (tls-psk-file) is not allowed, " "call nbd_set_uri_allow_local_file to enable this"); goto cleanup; } if (nbd_unlocked_set_tls_psk_file (h, queries[i].value) == -1) goto cleanup; } } /* Username. */ if (uri->user && nbd_unlocked_set_tls_username (h, uri->user) == -1) goto cleanup; /* Export name. */ if (uri->path) { /* Since we require scheme://authority above, any path is absolute */ assert (uri->path[0] == '/'); r = nbd_unlocked_set_export_name (h, &uri->path[1]); } else r = nbd_unlocked_set_export_name (h, ""); if (r == -1) goto cleanup; switch (transport) { case tcp: /* TCP */ snprintf (port_str, sizeof port_str, "%d", uri->port > 0 ? uri->port : 10809); if (nbd_unlocked_aio_connect_tcp (h, uri->server ? : "localhost", port_str) == -1) goto cleanup; break; case unix_sock: /* Unix domain socket */ if (nbd_unlocked_aio_connect_unix (h, unixsocket) == -1) goto cleanup; break; case vsock: /* AF_VSOCK */ /* Server, if present, must be the numeric CID. Else we * assume the host (2). */ if (uri->server && strcmp (uri->server, "") != 0) { /* This doesn't deal with overflow, but that seems unlikely to * matter because you'll end up with a CID one way or another. */ if (sscanf (uri->server, "%" SCNu32, &cid) != 1) { set_error (EINVAL, "cannot parse vsock CID from NBD URI: %s", uri->server); goto cleanup; } } else cid = 2; /* For unknown reasons libxml2 sets uri->port = -1 if the * authority field is not present at all. So we must check that * uri->port > 0. This prevents us from using certain very large * port numbers, but that's not an issue that matters in practice. */ svm_port = uri->port > 0 ? (uint32_t) uri->port : 10809; if (nbd_unlocked_aio_connect_vsock (h, cid, svm_port) == -1) goto cleanup; break; } ret = 0; cleanup: while (nqueries-- > 0) { free (queries[nqueries].name); free (queries[nqueries].value); } free (queries); xmlFreeURI (uri); return ret; } #else /* !HAVE_LIBXML2 */ #define NOT_SUPPORTED_ERROR \ "libnbd was compiled without libxml2 support, so we do not support NBD URI" int nbd_unlocked_connect_uri (struct nbd_handle *h, const char *uri) { set_error (ENOTSUP, NOT_SUPPORTED_ERROR); return -1; } int nbd_unlocked_aio_connect_uri (struct nbd_handle *h, const char *raw_uri) { set_error (ENOTSUP, NOT_SUPPORTED_ERROR); return -1; } #endif /* !HAVE_LIBXML2 */ �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/utils.c����������������������������������������������������������������������������0000664�0001750�0001750�00000007431�13546661321�011757� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <ctype.h> #include <errno.h> #include "internal.h" #define MIN(a,b) ((a) < (b) ? (a) : (b)) void nbd_internal_hexdump (const void *data, size_t len, FILE *fp) { size_t i, j; for (i = 0; i < len; i += 16) { fprintf (fp, "%04zx: ", i); for (j = i; j < MIN (i+16, len); ++j) fprintf (fp, "%02x ", ((const unsigned char *)data)[j]); for (; j < i+16; ++j) fprintf (fp, " "); fprintf (fp, "|"); for (j = i; j < MIN (i+16, len); ++j) if (isprint (((const char *)data)[j])) fprintf (fp, "%c", ((const char *)data)[j]); else fprintf (fp, "."); for (; j < i+16; ++j) fprintf (fp, " "); fprintf (fp, "|\n"); } } size_t nbd_internal_string_list_length (char **argv) { size_t ret; for (ret = 0; argv[ret] != NULL; ++ret) ; return ret; } char ** nbd_internal_copy_string_list (char **argv) { size_t i, j, n; char **ret; n = nbd_internal_string_list_length (argv); ret = calloc (n+1, sizeof (char *)); if (!ret) return NULL; for (i = 0; i < n; ++i) { ret[i] = strdup (argv[i]); if (ret[i] == NULL) { for (j = 0; j < i; ++j) free (ret[j]); free (ret); return NULL; } } ret[n] = NULL; return ret; } void nbd_internal_free_string_list (char **argv) { size_t i; if (!argv) return; for (i = 0; argv[i] != NULL; ++i) free (argv[i]); free (argv); } /* Like sprintf ("%ld", v), but safe to use between fork and exec. Do * not use this function in any other context. * * The caller must supply a scratch buffer which is at least 32 bytes * long (else the function will call abort()). Note that the returned * string does not point to the start of this buffer. */ const char * nbd_internal_fork_safe_itoa (long v, char *buf, size_t bufsize) { unsigned long uv = (unsigned long) v; size_t i = bufsize - 1; bool neg = false; if (bufsize < 32) abort (); buf[i--] = '\0'; if (v < 0) { neg = true; uv = -uv; } if (uv == 0) buf[i--] = '0'; else { while (uv) { buf[i--] = '0' + (uv % 10); uv /= 10; } } if (neg) buf[i--] = '-'; i++; return &buf[i]; } /* Fork-safe version of perror. ONLY use this after fork and before * exec, the rest of the time use set_error(). */ void nbd_internal_fork_safe_perror (const char *s) { const int err = errno; #if defined(__GNUC__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wunused-result" #endif write (2, s, strlen (s)); write (2, ": ", 2); #if HAVE_SYS_ERRLIST write (2, sys_errlist[errno], strlen (sys_errlist[errno])); #else char buf[32]; const char *v = nbd_internal_fork_safe_itoa ((long) errno, buf, sizeof buf); write (2, v, strlen (v)); #endif write (2, "\n", 1); #if defined(__GNUC__) #pragma GCC diagnostic pop #endif /* Restore original errno in case it was disturbed by the system * calls above. */ errno = err; } ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/lib/libnbd.syms������������������������������������������������������������������������0000444�0001750�0001750�00000006474�13563236630�012624� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# NBD client library in userspace # WARNING: THIS FILE IS GENERATED FROM # generator/generator # ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. # # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Public symbols in libnbd 1.0: LIBNBD_1.0 { global: nbd_create; nbd_close; nbd_get_errno; nbd_get_error; nbd_set_debug; nbd_get_debug; nbd_set_debug_callback; nbd_clear_debug_callback; nbd_set_handle_name; nbd_get_handle_name; nbd_set_export_name; nbd_get_export_name; nbd_set_tls; nbd_get_tls; nbd_set_tls_certificates; nbd_set_tls_verify_peer; nbd_get_tls_verify_peer; nbd_set_tls_username; nbd_get_tls_username; nbd_set_tls_psk_file; nbd_add_meta_context; nbd_connect_uri; nbd_connect_unix; nbd_connect_tcp; nbd_connect_command; nbd_is_read_only; nbd_can_flush; nbd_can_fua; nbd_is_rotational; nbd_can_trim; nbd_can_zero; nbd_can_df; nbd_can_multi_conn; nbd_can_cache; nbd_can_meta_context; nbd_get_size; nbd_pread; nbd_pread_structured; nbd_pwrite; nbd_shutdown; nbd_flush; nbd_trim; nbd_cache; nbd_zero; nbd_block_status; nbd_poll; nbd_aio_connect; nbd_aio_connect_uri; nbd_aio_connect_unix; nbd_aio_connect_tcp; nbd_aio_connect_command; nbd_aio_pread; nbd_aio_pread_structured; nbd_aio_pwrite; nbd_aio_disconnect; nbd_aio_flush; nbd_aio_trim; nbd_aio_cache; nbd_aio_zero; nbd_aio_block_status; nbd_aio_get_fd; nbd_aio_get_direction; nbd_aio_notify_read; nbd_aio_notify_write; nbd_aio_is_created; nbd_aio_is_connecting; nbd_aio_is_ready; nbd_aio_is_processing; nbd_aio_is_dead; nbd_aio_is_closed; nbd_aio_command_completed; nbd_aio_peek_command_completed; nbd_aio_in_flight; nbd_connection_state; nbd_get_package_name; nbd_get_version; nbd_kill_subprocess; nbd_supports_tls; nbd_supports_uri; # Everything else is hidden. local: *; }; # Public symbols in libnbd 1.2: LIBNBD_1.2 { global: nbd_get_tls_negotiated; nbd_set_request_structured_replies; nbd_get_request_structured_replies; nbd_get_structured_replies_negotiated; nbd_set_handshake_flags; nbd_get_handshake_flags; nbd_set_uri_allow_transports; nbd_set_uri_allow_tls; nbd_set_uri_allow_local_file; nbd_connect_vsock; nbd_connect_socket; nbd_connect_systemd_socket_activation; nbd_can_fast_zero; nbd_get_protocol; nbd_aio_connect_vsock; nbd_aio_connect_socket; nbd_aio_connect_systemd_socket_activation; } LIBNBD_1.0; ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/����������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�010717� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/Makefile.am�����������������������������������������������������������������������0000664�0001750�0001750�00000005200�13562557674�012676� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA api_built += \ nbd_set_debug \ nbd_get_debug \ nbd_set_debug_callback \ nbd_clear_debug_callback \ nbd_set_handle_name \ nbd_get_handle_name \ nbd_set_export_name \ nbd_get_export_name \ nbd_set_tls \ nbd_get_tls \ nbd_get_tls_negotiated \ nbd_set_tls_certificates \ nbd_set_tls_verify_peer \ nbd_get_tls_verify_peer \ nbd_set_tls_username \ nbd_get_tls_username \ nbd_set_tls_psk_file \ nbd_set_request_structured_replies \ nbd_get_request_structured_replies \ nbd_get_structured_replies_negotiated \ nbd_set_handshake_flags \ nbd_get_handshake_flags \ nbd_add_meta_context \ nbd_set_uri_allow_transports \ nbd_set_uri_allow_tls \ nbd_set_uri_allow_local_file \ nbd_connect_uri \ nbd_connect_unix \ nbd_connect_vsock \ nbd_connect_tcp \ nbd_connect_socket \ nbd_connect_command \ nbd_connect_systemd_socket_activation \ nbd_is_read_only \ nbd_can_flush \ nbd_can_fua \ nbd_is_rotational \ nbd_can_trim \ nbd_can_zero \ nbd_can_fast_zero \ nbd_can_df \ nbd_can_multi_conn \ nbd_can_cache \ nbd_can_meta_context \ nbd_get_protocol \ nbd_get_size \ nbd_pread \ nbd_pread_structured \ nbd_pwrite \ nbd_shutdown \ nbd_flush \ nbd_trim \ nbd_cache \ nbd_zero \ nbd_block_status \ nbd_poll \ nbd_aio_connect \ nbd_aio_connect_uri \ nbd_aio_connect_unix \ nbd_aio_connect_vsock \ nbd_aio_connect_tcp \ nbd_aio_connect_socket \ nbd_aio_connect_command \ nbd_aio_connect_systemd_socket_activation \ nbd_aio_pread \ nbd_aio_pread_structured \ nbd_aio_pwrite \ nbd_aio_disconnect \ nbd_aio_flush \ nbd_aio_trim \ nbd_aio_cache \ nbd_aio_zero \ nbd_aio_block_status \ nbd_aio_get_fd \ nbd_aio_get_direction \ nbd_aio_notify_read \ nbd_aio_notify_write \ nbd_aio_is_created \ nbd_aio_is_connecting \ nbd_aio_is_ready \ nbd_aio_is_processing \ nbd_aio_is_dead \ nbd_aio_is_closed \ nbd_aio_command_completed \ nbd_aio_peek_command_completed \ nbd_aio_in_flight \ nbd_connection_state \ nbd_get_package_name \ nbd_get_version \ nbd_kill_subprocess \ nbd_supports_tls \ nbd_supports_uri \ $(NULL) �������������������������������������������������������������������������������������libnbd-1.2.2/docs/api-links.pod���������������������������������������������������������������������0000444�0001750�0001750�00000004677�13563236630�013235� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������L<nbd_add_meta_context(3)>, L<nbd_aio_block_status(3)>, L<nbd_aio_cache(3)>, L<nbd_aio_command_completed(3)>, L<nbd_aio_connect(3)>, L<nbd_aio_connect_command(3)>, L<nbd_aio_connect_socket(3)>, L<nbd_aio_connect_systemd_socket_activation(3)>, L<nbd_aio_connect_tcp(3)>, L<nbd_aio_connect_unix(3)>, L<nbd_aio_connect_uri(3)>, L<nbd_aio_connect_vsock(3)>, L<nbd_aio_disconnect(3)>, L<nbd_aio_flush(3)>, L<nbd_aio_get_direction(3)>, L<nbd_aio_get_fd(3)>, L<nbd_aio_in_flight(3)>, L<nbd_aio_is_closed(3)>, L<nbd_aio_is_connecting(3)>, L<nbd_aio_is_created(3)>, L<nbd_aio_is_dead(3)>, L<nbd_aio_is_processing(3)>, L<nbd_aio_is_ready(3)>, L<nbd_aio_notify_read(3)>, L<nbd_aio_notify_write(3)>, L<nbd_aio_peek_command_completed(3)>, L<nbd_aio_pread(3)>, L<nbd_aio_pread_structured(3)>, L<nbd_aio_pwrite(3)>, L<nbd_aio_trim(3)>, L<nbd_aio_zero(3)>, L<nbd_block_status(3)>, L<nbd_cache(3)>, L<nbd_can_cache(3)>, L<nbd_can_df(3)>, L<nbd_can_fast_zero(3)>, L<nbd_can_flush(3)>, L<nbd_can_fua(3)>, L<nbd_can_meta_context(3)>, L<nbd_can_multi_conn(3)>, L<nbd_can_trim(3)>, L<nbd_can_zero(3)>, L<nbd_clear_debug_callback(3)>, L<nbd_close(3)>, L<nbd_connect_command(3)>, L<nbd_connect_socket(3)>, L<nbd_connect_systemd_socket_activation(3)>, L<nbd_connect_tcp(3)>, L<nbd_connect_unix(3)>, L<nbd_connect_uri(3)>, L<nbd_connect_vsock(3)>, L<nbd_connection_state(3)>, L<nbd_create(3)>, L<nbd_flush(3)>, L<nbd_get_debug(3)>, L<nbd_get_errno(3)>, L<nbd_get_error(3)>, L<nbd_get_export_name(3)>, L<nbd_get_handle_name(3)>, L<nbd_get_handshake_flags(3)>, L<nbd_get_package_name(3)>, L<nbd_get_protocol(3)>, L<nbd_get_request_structured_replies(3)>, L<nbd_get_size(3)>, L<nbd_get_structured_replies_negotiated(3)>, L<nbd_get_tls(3)>, L<nbd_get_tls_negotiated(3)>, L<nbd_get_tls_username(3)>, L<nbd_get_tls_verify_peer(3)>, L<nbd_get_version(3)>, L<nbd_is_read_only(3)>, L<nbd_is_rotational(3)>, L<nbd_kill_subprocess(3)>, L<nbd_poll(3)>, L<nbd_pread(3)>, L<nbd_pread_structured(3)>, L<nbd_pwrite(3)>, L<nbd_set_debug(3)>, L<nbd_set_debug_callback(3)>, L<nbd_set_export_name(3)>, L<nbd_set_handle_name(3)>, L<nbd_set_handshake_flags(3)>, L<nbd_set_request_structured_replies(3)>, L<nbd_set_tls(3)>, L<nbd_set_tls_certificates(3)>, L<nbd_set_tls_psk_file(3)>, L<nbd_set_tls_username(3)>, L<nbd_set_tls_verify_peer(3)>, L<nbd_set_uri_allow_local_file(3)>, L<nbd_set_uri_allow_tls(3)>, L<nbd_set_uri_allow_transports(3)>, L<nbd_shutdown(3)>, L<nbd_supports_tls(3)>, L<nbd_supports_uri(3)>, L<nbd_trim(3)>, L<nbd_zero(3)>. �����������������������������������������������������������������libnbd-1.2.2/docs/api-flag-links.pod����������������������������������������������������������������0000444�0001750�0001750�00000000367�13536271151�014131� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������L<nbd_can_cache(3)>, L<nbd_can_df(3)>, L<nbd_can_fast_zero(3)>, L<nbd_can_flush(3)>, L<nbd_can_fua(3)>, L<nbd_can_meta_context(3)>, L<nbd_can_multi_conn(3)>, L<nbd_can_trim(3)>, L<nbd_can_zero(3)>, L<nbd_is_read_only(3)>, L<nbd_is_rotational(3)>. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_debug.pod�����������������������������������������������������������������0000444�0001750�0001750�00000002232�13571455450�014115� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_debug - set or clear the debug flag =head1 SYNOPSIS #include <libnbd.h> int nbd_set_debug (struct nbd_handle *h, bool debug); =head1 DESCRIPTION Set or clear the debug flag. When debugging is enabled, debugging messages from the library are printed to stderr, unless a debugging callback has been defined too (see L<nbd_set_debug_callback(3)>) in which case they are sent to that function. This flag defaults to false on newly created handles, except if C<LIBNBD_DEBUG=1> is set in the environment in which case it defaults to true. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_DEBUG 1 =head1 SEE ALSO L<nbd_set_handle_name(3)>, L<nbd_set_debug_callback(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_debug.pod�����������������������������������������������������������������0000444�0001750�0001750�00000001245�13571455450�014104� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_debug - return the state of the debug flag =head1 SYNOPSIS #include <libnbd.h> int nbd_get_debug (struct nbd_handle *h); =head1 DESCRIPTION Return the state of the debug flag on this handle. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_DEBUG 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_debug_callback.pod��������������������������������������������������������0000444�0001750�0001750�00000002762�13571455450�015741� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_debug_callback - set the debug callback =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, const char *context, const char *msg); void *user_data; void (*free) (void *user_data); } nbd_debug_callback; int nbd_set_debug_callback (struct nbd_handle *h, nbd_debug_callback debug_callback); =head1 DESCRIPTION Set the debug callback. This function is called when the library emits debug messages, when debugging is enabled on a handle. The callback parameters are C<user_data> passed to this function, the name of the libnbd function emitting the debug message (C<context>), and the message itself (C<msg>). If no debug callback is set on a handle then messages are printed on C<stderr>. The callback should not call C<nbd_*> APIs on the same handle since it can be called while holding the handle lock and will cause a deadlock. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_DEBUG_CALLBACK 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������libnbd-1.2.2/docs/nbd_clear_debug_callback.pod������������������������������������������������������0000444�0001750�0001750�00000001617�13571455450�016232� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_clear_debug_callback - clear the debug callback =head1 SYNOPSIS #include <libnbd.h> int nbd_clear_debug_callback (struct nbd_handle *h); =head1 DESCRIPTION Remove the debug callback if one was previously associated with the handle (with L<nbd_set_debug_callback(3)>). If no callback was associated this does nothing. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CLEAR_DEBUG_CALLBACK 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_handle_name.pod�����������������������������������������������������������0000444�0001750�0001750�00000002156�13571455450�015267� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_handle_name - set the handle name =head1 SYNOPSIS #include <libnbd.h> int nbd_set_handle_name (struct nbd_handle *h, const char *handle_name); =head1 DESCRIPTION Handles have a name which is unique within the current process. The handle name is used in debug output. Handle names are normally generated automatically and have the form C<"nbd1">, C<"nbd2">, etc., but you can optionally use this call to give the handles a name which is meaningful for your application to make debugging output easier to understand. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_HANDLE_NAME 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_handle_name.pod�����������������������������������������������������������0000444�0001750�0001750�00000001723�13571455450�015252� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_handle_name - get the handle name =head1 SYNOPSIS #include <libnbd.h> char * nbd_get_handle_name (struct nbd_handle *h); =head1 DESCRIPTION Get the name of the handle. If it was previously set by calling L<nbd_set_handle_name(3)> then this returns the name that was set. Otherwise it will return a generic name like C<"nbd1">, C<"nbd2">, etc. =head1 RETURN VALUE This call returns a string. The caller must free the returned string to avoid a memory leak. =head1 ERRORS On error C<NULL> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_HANDLE_NAME 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������libnbd-1.2.2/docs/nbd_set_export_name.pod�����������������������������������������������������������0000444�0001750�0001750�00000002714�13571455450�015355� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_export_name - set the export name =head1 SYNOPSIS #include <libnbd.h> int nbd_set_export_name (struct nbd_handle *h, const char *export_name); =head1 DESCRIPTION For servers which require an export name or can serve different content on different exports, set the C<export_name> to connect to. The default is the empty string C<"">. This is only relevant when connecting to servers using the newstyle protocol as the oldstyle protocol did not support export names. The NBD protocol limits export names to 4096 bytes, but servers may not support the full length. The encoding of export names is always UTF-8. This call may be skipped if using L<nbd_connect_uri(3)> to connect to a URI that includes an export name. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_EXPORT_NAME 1 =head1 SEE ALSO L<nbd_get_export_name(3)>, L<nbd_connect_uri(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������libnbd-1.2.2/docs/nbd_get_export_name.pod�����������������������������������������������������������0000444�0001750�0001750�00000001551�13571455450�015337� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_export_name - get the export name =head1 SYNOPSIS #include <libnbd.h> char * nbd_get_export_name (struct nbd_handle *h); =head1 DESCRIPTION Get the export name associated with the handle. =head1 RETURN VALUE This call returns a string. The caller must free the returned string to avoid a memory leak. =head1 ERRORS On error C<NULL> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_EXPORT_NAME 1 =head1 SEE ALSO L<nbd_set_export_name(3)>, L<nbd_connect_uri(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_tls.pod�������������������������������������������������������������������0000444�0001750�0001750�00000012234�13571455450�013634� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_tls - enable or require TLS (authentication and encryption) =head1 SYNOPSIS #include <libnbd.h> int nbd_set_tls (struct nbd_handle *h, int tls); =head1 DESCRIPTION Enable or require TLS (authenticated and encrypted connections) to the NBD server. The possible settings are: =over 4 =item C<LIBNBD_TLS_DISABLE> Disable TLS. (The default setting, unless using L<nbd_connect_uri(3)> with a URI that requires TLS) =item C<LIBNBD_TLS_ALLOW> Enable TLS if possible. This option is insecure (or best effort) in that in some cases it will fall back to an unencrypted and/or unauthenticated connection if TLS could not be established. Use C<LIBNBD_TLS_REQUIRE> below if the connection must be encrypted. Some servers will drop the connection if TLS fails so fallback may not be possible. =item C<LIBNBD_TLS_REQUIRE> Require an encrypted and authenticated TLS connection. Always fail to connect if the connection is not encrypted and authenticated. =back As well as calling this you may also need to supply the path to the certificates directory (L<nbd_set_tls_certificates(3)>), the username (L<nbd_set_tls_username(3)>) and/or the Pre-Shared Keys (PSK) file (L<nbd_set_tls_psk_file(3)>). For now, when using L<nbd_connect_uri(3)>, any URI query parameters related to TLS are not handled automatically. Setting the level higher than zero will fail if libnbd was not compiled against gnutls; you can test whether this is the case with L<nbd_supports_tls(3)>. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_TLS 1 =head1 EXAMPLE This example is also available as F<examples/encryption.c> in the libnbd source code. /* An example showing how to connect to a server which is * using TLS encryption. * * This requires nbdkit, and psktool from gnutls. * * Both libnbd and nbdkit support TLS-PSK which is a * simpler-to-deploy form of encryption. (Of course * certificate-based encryption is also supported, but * it’s harder to make a self-contained example). */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <libnbd.h> #define TMPDIR "/tmp/XXXXXX" #define KEYS "keys.psk" #define USERNAME "alice" static char dir[] = TMPDIR; static char keys[] = TMPDIR "/" KEYS; static char cmd[] = "psktool -u " USERNAME " -p " TMPDIR "/" KEYS; /* Remove the temporary keys file when the program * exits. */ static void cleanup_keys (void) { unlink (keys); rmdir (dir); } /* Create the temporary keys file to share with the * server. */ static void create_keys (void) { size_t i; if (mkdtemp (dir) == NULL) { perror ("mkdtemp"); exit (EXIT_FAILURE); } i = strlen (cmd) - strlen (TMPDIR) - strlen (KEYS) - 1; memcpy (&cmd[i], dir, strlen (TMPDIR)); memcpy (keys, dir, strlen (TMPDIR)); if (system (cmd) != 0) { fprintf (stderr, "psktool command failed\n"); exit (EXIT_FAILURE); } atexit (cleanup_keys); } int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; create_keys (); /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Enable TLS in the client. */ if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Enable TLS-PSK and pass the keys filename. */ if (nbd_set_tls_psk_file (nbd, keys) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Set the local username for authentication. */ if (nbd_set_tls_username (nbd, USERNAME) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Run nbdkit as a subprocess, enabling and requiring * TLS-PSK encryption. */ char *args[] = { "nbdkit", "-s", "--exit-with-parent", "--tls", "require", "--tls-psk", keys, "pattern", "size=1M", NULL }; if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector. */ if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* TLS connections must be shut down. */ if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/ENCRYPTION AND AUTHENTICATION>, L<nbd_get_tls(3)>, L<nbd_get_tls_negotiated(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_tls.pod�������������������������������������������������������������������0000444�0001750�0001750�00000001477�13571455450�013627� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_tls - get the TLS request setting =head1 SYNOPSIS #include <libnbd.h> int nbd_get_tls (struct nbd_handle *h); =head1 DESCRIPTION Get the TLS request setting. B<Note:> If you want to find out if TLS was actually negotiated on a particular connection use L<nbd_get_tls_negotiated(3)> instead. =head1 RETURN VALUE This call returns an integer E<ge> C<0>. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_TLS 1 =head1 SEE ALSO L<nbd_set_tls(3)>, L<nbd_get_tls_negotiated(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_tls_negotiated.pod��������������������������������������������������������0000444�0001750�0001750�00000002637�13571455450�016031� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_tls_negotiated - find out if TLS was negotiated on a connection =head1 SYNOPSIS #include <libnbd.h> int nbd_get_tls_negotiated (struct nbd_handle *h); =head1 DESCRIPTION After connecting you may call this to find out if the connection is using TLS. This is only really useful if you set the TLS request mode to C<LIBNBD_TLS_ALLOW> (see L<nbd_set_tls(3)>), because in this mode we try to use TLS but fall back to unencrypted if it was not available. This function will tell you if TLS was negotiated or not. In C<LIBNBD_TLS_REQUIRE> mode (the most secure) the connection would have failed if TLS could not be negotiated, and in C<LIBNBD_TLS_DISABLE> mode TLS is not tried. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_TLS_NEGOTIATED 1 =head1 SEE ALSO L<nbd_set_tls(3)>, L<nbd_get_tls(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_tls_certificates.pod������������������������������������������������������0000444�0001750�0001750�00000002546�13571455450�016366� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_tls_certificates - set the path to the TLS certificates directory =head1 SYNOPSIS #include <libnbd.h> int nbd_set_tls_certificates (struct nbd_handle *h, const char *dir); =head1 DESCRIPTION Set the path to the TLS certificates directory. If not set and TLS is used then a compiled in default is used. For root this is C</etc/pki/libnbd/>. For non-root this is C<$HOME/.pki/libnbd> and C<$HOME/.config/pki/libnbd>. If none of these directories can be found then the system trusted CAs are used. This function may be called regardless of whether TLS is supported, but will have no effect unless L<nbd_set_tls(3)> is also used to request or require TLS. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_TLS_CERTIFICATES 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_tls_verify_peer.pod�������������������������������������������������������0000444�0001750�0001750�00000002452�13571455450�016234� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_tls_verify_peer - set whether we verify the identity of the server =head1 SYNOPSIS #include <libnbd.h> int nbd_set_tls_verify_peer (struct nbd_handle *h, bool verify); =head1 DESCRIPTION Set this flag to control whether libnbd will verify the identity of the server from the server's certificate and the certificate authority. This defaults to true when connecting to TCP servers using TLS certificate authentication, and false otherwise. This function may be called regardless of whether TLS is supported, but will have no effect unless L<nbd_set_tls(3)> is also used to request or require TLS. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_TLS_VERIFY_PEER 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_tls_verify_peer.pod�������������������������������������������������������0000444�0001750�0001750�00000001270�13571455450�016215� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_tls_verify_peer - get whether we verify the identity of the server =head1 SYNOPSIS #include <libnbd.h> int nbd_get_tls_verify_peer (struct nbd_handle *h); =head1 DESCRIPTION Get the verify peer flag. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_TLS_VERIFY_PEER 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_tls_username.pod����������������������������������������������������������0000444�0001750�0001750�00000010161�13571455450�015530� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_tls_username - set the TLS username =head1 SYNOPSIS #include <libnbd.h> int nbd_set_tls_username (struct nbd_handle *h, const char *username); =head1 DESCRIPTION Set the TLS client username. This is used if authenticating with PSK over TLS is enabled. If not set then the local username is used. This function may be called regardless of whether TLS is supported, but will have no effect unless L<nbd_set_tls(3)> is also used to request or require TLS. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_TLS_USERNAME 1 =head1 EXAMPLE This example is also available as F<examples/encryption.c> in the libnbd source code. /* An example showing how to connect to a server which is * using TLS encryption. * * This requires nbdkit, and psktool from gnutls. * * Both libnbd and nbdkit support TLS-PSK which is a * simpler-to-deploy form of encryption. (Of course * certificate-based encryption is also supported, but * it’s harder to make a self-contained example). */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <libnbd.h> #define TMPDIR "/tmp/XXXXXX" #define KEYS "keys.psk" #define USERNAME "alice" static char dir[] = TMPDIR; static char keys[] = TMPDIR "/" KEYS; static char cmd[] = "psktool -u " USERNAME " -p " TMPDIR "/" KEYS; /* Remove the temporary keys file when the program * exits. */ static void cleanup_keys (void) { unlink (keys); rmdir (dir); } /* Create the temporary keys file to share with the * server. */ static void create_keys (void) { size_t i; if (mkdtemp (dir) == NULL) { perror ("mkdtemp"); exit (EXIT_FAILURE); } i = strlen (cmd) - strlen (TMPDIR) - strlen (KEYS) - 1; memcpy (&cmd[i], dir, strlen (TMPDIR)); memcpy (keys, dir, strlen (TMPDIR)); if (system (cmd) != 0) { fprintf (stderr, "psktool command failed\n"); exit (EXIT_FAILURE); } atexit (cleanup_keys); } int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; create_keys (); /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Enable TLS in the client. */ if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Enable TLS-PSK and pass the keys filename. */ if (nbd_set_tls_psk_file (nbd, keys) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Set the local username for authentication. */ if (nbd_set_tls_username (nbd, USERNAME) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Run nbdkit as a subprocess, enabling and requiring * TLS-PSK encryption. */ char *args[] = { "nbdkit", "-s", "--exit-with-parent", "--tls", "require", "--tls-psk", keys, "pattern", "size=1M", NULL }; if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector. */ if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* TLS connections must be shut down. */ if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_tls_username.pod����������������������������������������������������������0000444�0001750�0001750�00000001515�13571455450�015517� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_tls_username - get the current TLS username =head1 SYNOPSIS #include <libnbd.h> char * nbd_get_tls_username (struct nbd_handle *h); =head1 DESCRIPTION Get the current TLS username. =head1 RETURN VALUE This call returns a string. The caller must free the returned string to avoid a memory leak. =head1 ERRORS On error C<NULL> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_TLS_USERNAME 1 =head1 SEE ALSO L<nbd_set_tls_username(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_tls_psk_file.pod����������������������������������������������������������0000444�0001750�0001750�00000010353�13571455450�015510� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_tls_psk_file - set the TLS Pre-Shared Keys (PSK) filename =head1 SYNOPSIS #include <libnbd.h> int nbd_set_tls_psk_file (struct nbd_handle *h, const char *filename); =head1 DESCRIPTION Set the TLS Pre-Shared Keys (PSK) filename. This is used if trying to authenticate to the server using with a pre-shared key. There is no default so if this is not set then PSK authentication cannot be used to connect to the server. This function may be called regardless of whether TLS is supported, but will have no effect unless L<nbd_set_tls(3)> is also used to request or require TLS. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_TLS_PSK_FILE 1 =head1 EXAMPLE This example is also available as F<examples/encryption.c> in the libnbd source code. /* An example showing how to connect to a server which is * using TLS encryption. * * This requires nbdkit, and psktool from gnutls. * * Both libnbd and nbdkit support TLS-PSK which is a * simpler-to-deploy form of encryption. (Of course * certificate-based encryption is also supported, but * it’s harder to make a self-contained example). */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <libnbd.h> #define TMPDIR "/tmp/XXXXXX" #define KEYS "keys.psk" #define USERNAME "alice" static char dir[] = TMPDIR; static char keys[] = TMPDIR "/" KEYS; static char cmd[] = "psktool -u " USERNAME " -p " TMPDIR "/" KEYS; /* Remove the temporary keys file when the program * exits. */ static void cleanup_keys (void) { unlink (keys); rmdir (dir); } /* Create the temporary keys file to share with the * server. */ static void create_keys (void) { size_t i; if (mkdtemp (dir) == NULL) { perror ("mkdtemp"); exit (EXIT_FAILURE); } i = strlen (cmd) - strlen (TMPDIR) - strlen (KEYS) - 1; memcpy (&cmd[i], dir, strlen (TMPDIR)); memcpy (keys, dir, strlen (TMPDIR)); if (system (cmd) != 0) { fprintf (stderr, "psktool command failed\n"); exit (EXIT_FAILURE); } atexit (cleanup_keys); } int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; create_keys (); /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Enable TLS in the client. */ if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Enable TLS-PSK and pass the keys filename. */ if (nbd_set_tls_psk_file (nbd, keys) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Set the local username for authentication. */ if (nbd_set_tls_username (nbd, USERNAME) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Run nbdkit as a subprocess, enabling and requiring * TLS-PSK encryption. */ char *args[] = { "nbdkit", "-s", "--exit-with-parent", "--tls", "require", "--tls-psk", keys, "pattern", "size=1M", NULL }; if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector. */ if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* TLS connections must be shut down. */ if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_request_structured_replies.pod��������������������������������������������0000444�0001750�0001750�00000002631�13571455450�020531� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_request_structured_replies - control use of structured replies =head1 SYNOPSIS #include <libnbd.h> int nbd_set_request_structured_replies (struct nbd_handle *h, bool request); =head1 DESCRIPTION By default, libnbd tries to negotiate structured replies with the server, as this protocol extension must be in use before C<nbd_can_meta_context> or C<nbd_can_df> can return true. However, for integration testing, it can be useful to clear this flag rather than find a way to alter the server to fail the negotiation request. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_REQUEST_STRUCTURED_REPLIES 1 =head1 SEE ALSO L<nbd_get_request_structured_replies(3)>, L<nbd_set_handshake_flags(3)>, L<nbd_get_structured_replies_negotiated(3)>, L<nbd_can_meta_context(3)>, L<nbd_can_df(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_request_structured_replies.pod��������������������������������������������0000444�0001750�0001750�00000001770�13571455450�020520� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_request_structured_replies - see if structured replies are attempted =head1 SYNOPSIS #include <libnbd.h> int nbd_get_request_structured_replies (struct nbd_handle *h); =head1 DESCRIPTION Return the state of the request structured replies flag on this handle. B<Note:> If you want to find out if structured replies were actually negotiated on a particular connection use C<nbd_get_structured_replies_negotiated> instead. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_REQUEST_STRUCTURED_REPLIES 1 =head1 SEE ALSO L<nbd_set_request_structured_replies(3)>, L<nbd_get_structured_replies_negotiated(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������libnbd-1.2.2/docs/nbd_get_structured_replies_negotiated.pod�����������������������������������������0000444�0001750�0001750�00000002156�13571455450�021152� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_structured_replies_negotiated - see if structured replies are in use =head1 SYNOPSIS #include <libnbd.h> int nbd_get_structured_replies_negotiated (struct nbd_handle *h); =head1 DESCRIPTION After connecting you may call this to find out if the connection is using structured replies. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_STRUCTURED_REPLIES_NEGOTIATED 1 =head1 SEE ALSO L<nbd_set_request_structured_replies(3)>, L<nbd_get_request_structured_replies(3)>, L<nbd_get_protocol(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_handshake_flags.pod�������������������������������������������������������0000444�0001750�0001750�00000004131�13571455450�016131� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_handshake_flags - control use of handshake flags =head1 SYNOPSIS #include <libnbd.h> int nbd_set_handshake_flags (struct nbd_handle *h, uint32_t flags); =head1 DESCRIPTION By default, libnbd tries to negotiate all possible handshake flags that are also supported by the server; since omitting a handshake flag can prevent the use of other functionality such as TLS encryption or structured replies. However, for integration testing, it can be useful to reduce the set of flags supported by the client to test that a particular server can handle various clients that were compliant to older versions of the NBD specification. The C<flags> argument is a bitmask, including zero or more of the following handshake flags: =over 4 =item C<LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE> = 1 The server gracefully handles unknown option requests from the client, rather than disconnecting. Without this flag, a client cannot safely request to use extensions such as TLS encryption or structured replies, as the request may cause an older server to drop the connection. =item C<LIBNBD_HANDSHAKE_FLAG_NO_ZEROES> = 2 If the client is forced to use C<NBD_OPT_EXPORT_NAME> instead of the preferred C<NBD_OPT_GO>, this flag allows the server to send fewer all-zero padding bytes over the connection. =back Future NBD extensions may add further flags. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_HANDSHAKE_FLAGS 1 =head1 SEE ALSO L<nbd_get_handshake_flags(3)>, L<nbd_set_request_structured_replies(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_handshake_flags.pod�������������������������������������������������������0000444�0001750�0001750�00000002444�13571455450�016122� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_handshake_flags - see which handshake flags are supported =head1 SYNOPSIS #include <libnbd.h> unsigned nbd_get_handshake_flags (struct nbd_handle *h); =head1 DESCRIPTION Return the state of the handshake flags on this handle. When the handle has not yet completed a connection (see C<nbd_aio_is_created>), this returns the flags that the client is willing to use, provided the server also advertises those flags. After the connection is ready (see C<nbd_aio_is_ready>), this returns the flags that were actually agreed on between the server and client. If the NBD protocol defines new handshake flags, then the return value from a newer library version may include bits that were undefined at the time of compilation. =head1 RETURN VALUE This call returns a bitmask. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_HANDSHAKE_FLAGS 1 =head1 SEE ALSO L<nbd_set_handshake_flags(3)>, L<nbd_get_protocol(3)>, L<nbd_aio_is_created(3)>, L<nbd_aio_is_ready(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_add_meta_context.pod����������������������������������������������������������0000444�0001750�0001750�00000004053�13571455450�015461� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_add_meta_context - ask server to negotiate metadata context =head1 SYNOPSIS #include <libnbd.h> int nbd_add_meta_context (struct nbd_handle *h, const char *name); =head1 DESCRIPTION During connection libnbd can negotiate zero or more metadata contexts with the server. Metadata contexts are features (such as C<"base:allocation">) which describe information returned by the L<nbd_block_status(3)> command (for C<"base:allocation"> this is whether blocks of data are allocated, zero or sparse). This call adds one metadata context to the list to be negotiated. You can call it as many times as needed. The list is initially empty when the handle is created. The NBD protocol limits meta context names to 4096 bytes, but servers may not support the full length. The encoding of meta context names is always UTF-8. Not all servers support all metadata contexts. To learn if a context was actually negotiated, call L<nbd_can_meta_context(3)> after connecting. The single parameter is the name of the metadata context, for example C<LIBNBD_CONTEXT_BASE_ALLOCATION>. B<E<lt>libnbd.hE<gt>> includes defined constants beginning with C<LIBNBD_CONTEXT_> for some well-known contexts, but you are free to pass in other contexts. Other metadata contexts are server-specific, but include C<"qemu:dirty-bitmap:..."> for qemu-nbd (see qemu-nbd I<-B> option). =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_ADD_META_CONTEXT 1 =head1 SEE ALSO L<nbd_block_status(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_uri_allow_transports.pod��������������������������������������������������0000444�0001750�0001750�00000002376�13571455450�017334� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_uri_allow_transports - set the allowed transports in NBD URIs =head1 SYNOPSIS #include <libnbd.h> int nbd_set_uri_allow_transports (struct nbd_handle *h, uint32_t mask); =head1 DESCRIPTION Set which transports are allowed to appear in NBD URIs. The default is to allow any transport. The C<mask> parameter may contain any of the following flags ORed together: =over 4 =item C<LIBNBD_ALLOW_TRANSPORT_TCP> =item C<LIBNBD_ALLOW_TRANSPORT_UNIX> =item C<LIBNBD_ALLOW_TRANSPORT_VSOCK> =back =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_URI_ALLOW_TRANSPORTS 1 =head1 SEE ALSO L<nbd_connect_uri(3)>, L<nbd_set_uri_allow_tls(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_uri_allow_tls.pod���������������������������������������������������������0000444�0001750�0001750�00000002563�13571455450�015715� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_uri_allow_tls - set the allowed TLS settings in NBD URIs =head1 SYNOPSIS #include <libnbd.h> int nbd_set_uri_allow_tls (struct nbd_handle *h, int tls); =head1 DESCRIPTION Set which TLS settings are allowed to appear in NBD URIs. The default is to allow either non-TLS or TLS URIs. The C<tls> parameter can be: =over 4 =item C<LIBNBD_TLS_DISABLE> TLS URIs are not permitted, ie. a URI such as C<nbds://...> will be rejected. =item C<LIBNBD_TLS_ALLOW> This is the default. TLS may be used or not, depending on whether the URI uses C<nbds> or C<nbd>. =item C<LIBNBD_TLS_REQUIRE> TLS URIs are required. All URIs must use C<nbds>. =back =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_URI_ALLOW_TLS 1 =head1 SEE ALSO L<nbd_connect_uri(3)>, L<nbd_set_uri_allow_transports(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_set_uri_allow_local_file.pod��������������������������������������������������0000444�0001750�0001750�00000002135�13571455450�017177� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_set_uri_allow_local_file - set the allowed transports in NBD URIs =head1 SYNOPSIS #include <libnbd.h> int nbd_set_uri_allow_local_file (struct nbd_handle *h, bool allow); =head1 DESCRIPTION Allow NBD URIs to reference local files. This is I<disabled> by default. Currently this setting only controls whether the C<tls-psk-file> parameter in NBD URIs is allowed. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SET_URI_ALLOW_LOCAL_FILE 1 =head1 SEE ALSO L<nbd_connect_uri(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_connect_uri.pod���������������������������������������������������������������0000444�0001750�0001750�00000011017�13571455450�014465� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_connect_uri - connect to NBD URI =head1 SYNOPSIS #include <libnbd.h> int nbd_connect_uri (struct nbd_handle *h, const char *uri); =head1 DESCRIPTION Connect (synchronously) to an NBD server and export by specifying the NBD URI. This call parses the URI and may call L<nbd_set_export_name(3)> and L<nbd_set_tls(3)> and other calls as needed, followed by L<nbd_connect_tcp(3)> or L<nbd_connect_unix(3)>. This call returns when the connection has been made. =head2 Example URIs supported =over 4 =item C<nbd://example.com> Connect over TCP, unencrypted, to C<example.com> port 10809. =item C<nbds://example.com> Connect over TCP with TLS, to C<example.com> port 10809. If the server does not support TLS then this will fail. =item C<nbd+unix:///foo?socket=/tmp/nbd.sock> Connect over the Unix domain socket F</tmp/nbd.sock> to an NBD server running locally. The export name is set to C<foo> (note without any leading C</> character). =item C<nbd+vsock:///> In this scenario libnbd is running in a virtual machine. Connect over C<AF_VSOCK> to an NBD server running on the hypervisor. =back =head2 Supported URI formats The following schemes are supported in the current version of libnbd: =over 4 =item C<nbd:> Connect over TCP without using TLS. =item C<nbds:> Connect over TCP. TLS is required and the connection will fail if the server does not support TLS. =item C<nbd+unix:> =item C<nbds+unix:> Connect over a Unix domain socket, without or with TLS respectively. The C<socket> parameter is required. =item C<nbd+vsock:> =item C<nbds+vsock:> Connect over the C<AF_VSOCK> transport, without or with TLS respectively. =back The authority part of the URI (C<[username@][servername][:port]>) is parsed depending on the transport. For TCP it specifies the server to connect to and optional port number. For C<+unix> it should not be present. For C<+vsock> the server name is the numeric CID (eg. C<2> to connect to the host), and the optional port number may be present. If the C<username> is present it is used for TLS authentication. For all transports, an export name may be present, parsed in accordance with the NBD URI specification. Finally the query part of the URI can contain: =over 4 =item B<socket=>F<SOCKET> Specifies the Unix domain socket to connect on. Must be present for the C<+unix> transport and must not be present for the other transports. =item B<tls-psk-file=>F<PSKFILE> Set the PSK file. See L<nbd_set_tls_psk_file(3)>. Note this is not allowed by default - see next section. =back =head2 Disable URI features For security reasons you might want to disable certain URI features. Pre-filtering URIs is error-prone and should not be attempted. Instead use the libnbd APIs below to control what can appear in URIs. Note you must call these functions on the same handle before calling C<nbd_connect_uri> or L<nbd_aio_connect_uri(3)>. =over 4 =item TCP, Unix domain socket or C<AF_VSOCK> transports Default: all allowed To select which transports are allowed call L<nbd_set_uri_allow_transports(3)>. =item TLS Default: both non-TLS and TLS connections allowed To force TLS off or on in URIs call L<nbd_set_uri_allow_tls(3)>. =item Connect to Unix domain socket in the local filesystem Default: allowed To prevent this you must disable the C<+unix> transport using L<nbd_set_uri_allow_transports(3)>. =item Read from local files Default: denied To allow URIs to contain references to local files (eg. for parameters like C<tls-psk-file>) call L<nbd_set_uri_allow_local_file(3)>. =back =head2 Optional features This call will fail if libnbd was not compiled with libxml2; you can test whether this is the case with L<nbd_supports_uri(3)>. Support for URIs that require TLS will fail if libnbd was not compiled with gnutls; you can test whether this is the case with L<nbd_supports_tls(3)>. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CONNECT_URI 1 =head1 SEE ALSO L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/uri.md>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_connect_unix.pod��������������������������������������������������������������0000444�0001750�0001750�00000005201�13571455450�014647� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_connect_unix - connect to NBD server over a Unix domain socket =head1 SYNOPSIS #include <libnbd.h> int nbd_connect_unix (struct nbd_handle *h, const char *unixsocket); =head1 DESCRIPTION Connect (synchronously) over the named Unix domain socket (C<unixsocket>) to an NBD server running on the same machine. This call returns when the connection has been made. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CONNECT_UNIX 1 =head1 EXAMPLE This example is also available as F<examples/fetch-first-sector.c> in the libnbd source code. /* This example shows how to connect to an NBD server * and fetch and print the first sector (usually the * boot sector or partition table or filesystem * superblock). * * You can test it with nbdkit like this: * * nbdkit -U - floppy . \ * --run './fetch-first-sector $unixsocket' * * The nbdkit floppy plugin creates an MBR disk so the * first sector is the partition table. */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; FILE *pp; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector synchronously. */ if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Close the libnbd handle. */ nbd_close (nbd); /* Print the first sector. */ pp = popen ("hexdump -C", "w"); if (pp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (buf, sizeof buf, 1, pp); pclose (pp); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_connect_vsock.pod�������������������������������������������������������������0000444�0001750�0001750�00000002415�13571455450�015015� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_connect_vsock - connect to NBD server over AF_VSOCK protocol =head1 SYNOPSIS #include <libnbd.h> int nbd_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port); =head1 DESCRIPTION Connect (synchronously) over the C<AF_VSOCK> protocol from a virtual machine to an NBD server, usually running on the host. The C<cid> and C<port> parameters specify the server address. Usually C<cid> should be C<2> (to connect to the host), and C<port> might be C<10809> or another port number assigned to you by the host administrator. This call returns when the connection has been made. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CONNECT_VSOCK 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_connect_tcp.pod���������������������������������������������������������������0000444�0001750�0001750�00000002201�13571455450�014447� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_connect_tcp - connect to NBD server over a TCP port =head1 SYNOPSIS #include <libnbd.h> int nbd_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port); =head1 DESCRIPTION Connect (synchronously) to the NBD server listening on C<hostname:port>. The C<port> may be a port name such as C<"nbd">, or it may be a port number as a string such as C<"10809">. This call returns when the connection has been made. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CONNECT_TCP 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_connect_socket.pod������������������������������������������������������������0000444�0001750�0001750�00000002316�13571455450�015160� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_connect_socket - connect directly to a connected socket =head1 SYNOPSIS #include <libnbd.h> int nbd_connect_socket (struct nbd_handle *h, int sock); =head1 DESCRIPTION Pass a connected socket (file descriptor) which libnbd will talk to. The program is responsible for connecting this somehow to an NBD server. Once the socket is passed to libnbd it is the responsibility of libnbd. Libnbd may read and write to it, set it to non-blocking, etc., and will finally close it when the handle is closed. The program must no longer use the socket. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CONNECT_SOCKET 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_connect_command.pod�����������������������������������������������������������0000444�0001750�0001750�00000007207�13571455450�015312� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_connect_command - connect to NBD server command =head1 SYNOPSIS #include <libnbd.h> int nbd_connect_command (struct nbd_handle *h, char **argv); =head1 DESCRIPTION Run the command as a subprocess and connect to it over stdin/stdout. This is for use with NBD servers which can behave like inetd clients, such as C<nbdkit --single>. =head2 Subprocess Libnbd will fork the C<argv> command and pass the NBD socket to it using file descriptors 0 and 1 (stdin/stdout): ┌─────────┬─────────┠┌────────────────┠│ program │ libnbd │ │ NBD server │ │ │ │ │ (argv) │ │ │ socket â•â•â•â•â•â•â•â•â–¶ stdin/stdout │ └─────────┴─────────┘ └────────────────┘ When the NBD handle is closed the server subprocess is killed. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CONNECT_COMMAND 1 =head1 EXAMPLE This example is also available as F<examples/connect-command.c> in the libnbd source code. /* This example shows how to run an NBD server * (nbdkit) as a subprocess of libnbd. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; char wbuf[512], rbuf[512]; size_t i; /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Run nbdkit as a subprocess. */ char *args[] = { "nbdkit", /* You must use ‘-s’ (which tells nbdkit to serve * a single connection on stdin/stdout). */ "-s", /* It is recommended to use ‘--exit-with-parent’ * to ensure nbdkit is always cleaned up even * if the main program crashes. */ "--exit-with-parent", /* Use this to enable nbdkit debugging. */ "-v", /* The nbdkit plugin name - this is a RAM disk. */ "memory", "size=1M", /* Use NULL to terminate the arg list. */ NULL }; if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Write some random data to the first sector. */ for (i = 0; i < sizeof wbuf; ++i) wbuf[i] = i % 13; if (nbd_pwrite (nbd, wbuf, sizeof wbuf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector back. */ if (nbd_pread (nbd, rbuf, sizeof rbuf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Close the libnbd handle. */ nbd_close (nbd); /* What was read must be exactly the same as what * was written. */ if (memcmp (rbuf, wbuf, sizeof rbuf) != 0) { fprintf (stderr, "FAILED: " "read data did not match written data\n"); exit (EXIT_FAILURE); } exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_kill_subprocess(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_connect_systemd_socket_activation.pod�����������������������������������������0000444�0001750�0001750�00000006737�13571455450�021164� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_connect_systemd_socket_activation - connect using systemd socket activation =head1 SYNOPSIS #include <libnbd.h> int nbd_connect_systemd_socket_activation (struct nbd_handle *h, char **argv); =head1 DESCRIPTION Run the command as a subprocess and connect to it using systemd socket activation. This is especially useful for running L<qemu-nbd(1)> as a subprocess of libnbd, for example to use it to open qcow2 files. To run nbdkit as a subprocess it is usually better to use L<nbd_connect_command(3)>. =head2 Socket activation Libnbd will fork the C<argv> command and pass an NBD socket to it using special C<LISTEN_*> environment variables (as defined by the systemd socket activation protocol). ┌─────────┬─────────┠┌───────────────┠│ program │ libnbd │ │ qemu-nbd or │ │ │ │ │ other server │ │ │ socket â•â•â•â•â•â•â•â•â–¶ │ └─────────┴─────────┘ └───────────────┘ When the NBD handle is closed the server subprocess is killed. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CONNECT_SYSTEMD_SOCKET_ACTIVATION 1 =head1 EXAMPLE This example is also available as F<examples/open-qcow2.c> in the libnbd source code. /* This example shows how to use qemu-nbd * to open a local qcow2 file. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <libnbd.h> int main (int argc, char *argv[]) { const char *filename; struct nbd_handle *nbd; char buf[512]; FILE *fp; if (argc != 2) { fprintf (stderr, "open-qcow2 file.qcow2\n"); exit (EXIT_FAILURE); } filename = argv[1]; /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Run qemu-nbd as a subprocess using * systemd socket activation. */ char *args[] = { "qemu-nbd", "-f", "qcow2", (char *) filename, NULL }; if (nbd_connect_systemd_socket_activation (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector and print it. */ if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } fp = popen ("hexdump -C", "w"); if (fp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (buf, sizeof buf, 1, fp); pclose (fp); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_connect_command(3)>, L<nbd_kill_subprocess(3)>, L<qemu-nbd(1)>, L<http://0pointer.de/blog/projects/socket-activation.html>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������libnbd-1.2.2/docs/nbd_is_read_only.pod��������������������������������������������������������������0000444�0001750�0001750�00000005543�13571455450�014633� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_is_read_only - is the NBD export read-only? =head1 SYNOPSIS #include <libnbd.h> int nbd_is_read_only (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the NBD export is read-only; writes and write-like operations will fail. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_IS_READ_ONLY 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_can_flush.pod�����������������������������������������������������������������0000444�0001750�0001750�00000005676�13571455450�014135� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_can_flush - does the server support the flush command? =head1 SYNOPSIS #include <libnbd.h> int nbd_can_flush (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the server supports the flush command (see L<nbd_flush(3)>, L<nbd_aio_flush(3)>). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CAN_FLUSH 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_flush(3)>, L<nbd_aio_flush(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������libnbd-1.2.2/docs/nbd_can_fua.pod�������������������������������������������������������������������0000444�0001750�0001750�00000005623�13571455450�013557� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_can_fua - does the server support the FUA flag? =head1 SYNOPSIS #include <libnbd.h> int nbd_can_fua (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the server supports the FUA flag on certain commands (see L<nbd_pwrite(3)>). This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CAN_FUA 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_pwrite(3)>, L<nbd_zero(3)>, L<nbd_trim(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_is_rotational.pod�������������������������������������������������������������0000444�0001750�0001750�00000005723�13571455450�015033� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_is_rotational - is the NBD disk rotational (like a disk)? =head1 SYNOPSIS #include <libnbd.h> int nbd_is_rotational (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the disk exposed over NBD is rotational (like a traditional floppy or hard disk). Returns false if the disk has no penalty for random access (like an SSD or RAM disk). This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_IS_ROTATIONAL 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������libnbd-1.2.2/docs/nbd_can_trim.pod������������������������������������������������������������������0000444�0001750�0001750�00000005665�13571455450�013765� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_can_trim - does the server support the trim command? =head1 SYNOPSIS #include <libnbd.h> int nbd_can_trim (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the server supports the trim command (see L<nbd_trim(3)>, L<nbd_aio_trim(3)>). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CAN_TRIM 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_trim(3)>, L<nbd_aio_trim(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_can_zero.pod������������������������������������������������������������������0000444�0001750�0001750�00000005716�13571455450�013766� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_can_zero - does the server support the zero command? =head1 SYNOPSIS #include <libnbd.h> int nbd_can_zero (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the server supports the zero command (see L<nbd_zero(3)>, L<nbd_aio_zero(3)>). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CAN_ZERO 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_zero(3)>, L<nbd_aio_zero(3)>, L<nbd_can_fast_zero(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������libnbd-1.2.2/docs/nbd_can_fast_zero.pod�������������������������������������������������������������0000444�0001750�0001750�00000006010�13571455450�014767� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_can_fast_zero - does the server support the fast zero flag? =head1 SYNOPSIS #include <libnbd.h> int nbd_can_fast_zero (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the server supports the use of the C<LIBNBD_CMD_FLAG_FAST_ZERO> flag to the zero command (see C<nbd_zero>, C<nbd_aio_zero>). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CAN_FAST_ZERO 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_zero(3)>, L<nbd_aio_zero(3)>, L<nbd_can_zero(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_can_df.pod��������������������������������������������������������������������0000444�0001750�0001750�00000005730�13571455450�013374� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_can_df - does the server support the don't fragment flag to pread? =head1 SYNOPSIS #include <libnbd.h> int nbd_can_df (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the server supports structured reads with an ability to request a non-fragmented read (see L<nbd_pread_structured(3)>, L<nbd_aio_pread_structured(3)>). Returns false if the server either lacks structured reads or if it does not support a non-fragmented read request. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CAN_DF 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_pread_structured(3)>, L<nbd_aio_pread_structured(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������libnbd-1.2.2/docs/nbd_can_multi_conn.pod������������������������������������������������������������0000444�0001750�0001750�00000006212�13616543402�015141� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_can_multi_conn - does the server support multi-conn? =head1 SYNOPSIS #include <libnbd.h> int nbd_can_multi_conn (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the server supports multi-conn. Returns false if the server does not. It is not safe to open multiple handles connecting to the same server if you will write to the server and the server does not advertise multi-conn support. The safe way to check for this is to open one connection, check this flag is true, then open further connections as required. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CAN_MULTI_CONN 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Multi-conn>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_can_cache.pod�����������������������������������������������������������������0000444�0001750�0001750�00000005676�13571455450�014057� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_can_cache - does the server support the cache command? =head1 SYNOPSIS #include <libnbd.h> int nbd_can_cache (struct nbd_handle *h); =head1 DESCRIPTION Returns true if the server supports the cache command (see L<nbd_cache(3)>, L<nbd_aio_cache(3)>). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CAN_CACHE 1 =head1 EXAMPLE This example is also available as F<examples/server-flags.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_cache(3)>, L<nbd_aio_cache(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������libnbd-1.2.2/docs/nbd_can_meta_context.pod����������������������������������������������������������0000444�0001750�0001750�00000003031�13571455450�015465� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_can_meta_context - does the server support a specific meta context? =head1 SYNOPSIS #include <libnbd.h> int nbd_can_meta_context (struct nbd_handle *h, const char *metacontext); =head1 DESCRIPTION Returns true if the server supports the given meta context (see L<nbd_add_meta_context(3)>). Returns false if the server does not. The single parameter is the name of the metadata context, for example C<LIBNBD_CONTEXT_BASE_ALLOCATION>. B<E<lt>libnbd.hE<gt>> includes defined constants for well-known namespace contexts beginning with C<LIBNBD_CONTEXT_>, but you are free to pass in other contexts. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CAN_META_CONTEXT 1 =head1 SEE ALSO L<libnbd(3)/Flag calls>, L<nbd_add_meta_context(3)>, L<nbd_block_status(3)>, L<nbd_aio_block_status(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_protocol.pod��������������������������������������������������������������0000444�0001750�0001750�00000002717�13571455450�014664� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_protocol - return the NBD protocol variant =head1 SYNOPSIS #include <libnbd.h> const char * nbd_get_protocol (struct nbd_handle *h); =head1 DESCRIPTION Return the NBD protocol variant in use on the connection. At the moment this returns one of the strings C<"oldstyle">, C<"newstyle"> or C<"newstyle-fixed">. Other strings might be returned in the future. Most modern NBD servers use C<"newstyle-fixed">. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a statically allocated string, valid for the lifetime of the process or until libnbd is unloaded by L<dlclose(3)>. You B<must not> try to free the string. =head1 ERRORS On error C<NULL> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_PROTOCOL 1 =head1 SEE ALSO L<nbd_get_handshake_flags(3)>, L<nbd_get_structured_replies_negotiated(3)>, L<nbd_get_tls_negotiated(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������libnbd-1.2.2/docs/nbd_get_size.pod������������������������������������������������������������������0000444�0001750�0001750�00000004474�13571455450�013777� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_size - return the export size =head1 SYNOPSIS #include <libnbd.h> int64_t nbd_get_size (struct nbd_handle *h); =head1 DESCRIPTION Returns the size in bytes of the NBD export. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. =head1 RETURN VALUE This call returns a 64 bit signed integer E<ge> C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_SIZE 1 =head1 EXAMPLE This example is also available as F<examples/get-size.c> in the libnbd source code. /* This example shows how to connect to an NBD * server and read the size of the disk. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './get-size $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int64_t size; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the size in bytes and print it. */ size = nbd_get_size (nbd); if (size == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } printf ("%s: size = %" PRIi64 " bytes\n", argv[1], size); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Size of the export>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_pread.pod���������������������������������������������������������������������0000444�0001750�0001750�00000006017�13571455450�013254� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_pread - read from the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, uint32_t flags); =head1 DESCRIPTION Issue a read command to the NBD server for the range starting at C<offset> and ending at C<offset> + C<count> - 1. NBD can only read all or nothing using this call. The call returns when the data has been read fully into C<buf> or there is an error. See also L<nbd_pread_structured(3)>, if finer visibility is required into the server's replies, or if you want to use C<LIBNBD_CMD_FLAG_DF>. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions). =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_PREAD 1 =head1 EXAMPLE This example is also available as F<examples/fetch-first-sector.c> in the libnbd source code. /* This example shows how to connect to an NBD server * and fetch and print the first sector (usually the * boot sector or partition table or filesystem * superblock). * * You can test it with nbdkit like this: * * nbdkit -U - floppy . \ * --run './fetch-first-sector $unixsocket' * * The nbdkit floppy plugin creates an MBR disk so the * first sector is the partition table. */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; FILE *pp; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector synchronously. */ if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Close the libnbd handle. */ nbd_close (nbd); /* Print the first sector. */ pp = popen ("hexdump -C", "w"); if (pp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (buf, sizeof buf, 1, pp); pclose (pp); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_aio_pread(3)>, L<nbd_pread_structured(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_pread_structured.pod����������������������������������������������������������0000444�0001750�0001750�00000010777�13571455450�015550� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_pread_structured - read from the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, const void *subbuf, size_t count, uint64_t offset, unsigned status, int *error); void *user_data; void (*free) (void *user_data); } nbd_chunk_callback; int nbd_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk_callback, uint32_t flags); =head1 DESCRIPTION Issue a read command to the NBD server for the range starting at C<offset> and ending at C<offset> + C<count> - 1. The server's response may be subdivided into chunks which may arrive out of order before reassembly into the original buffer; the C<chunk> callback is used for notification after each chunk arrives, and may perform additional sanity checking on the server's reply. The callback cannot call C<nbd_*> APIs on the same handle since it holds the handle lock and will cause a deadlock. If the callback returns C<-1>, and no earlier error has been detected, then the overall read command will fail with any non-zero value stored into the callback's C<error> parameter (with a default of C<EPROTO>); but any further chunks will still invoke the callback. The C<chunk> function is called once per chunk of data received, with the C<user_data> passed to this function. The C<subbuf> and C<count> parameters represent the subset of the original buffer which has just been populated by results from the server (in C, C<subbuf> always points within the original C<buf>; but this guarantee may not extend to other language bindings). The C<offset> parameter represents the absolute offset at which C<subbuf> begins within the image (note that this is not the relative offset of C<subbuf> within the original buffer C<buf>). Changes to C<error> on output are ignored unless the callback fails. The input meaning of the C<error> parameter is controlled by the C<status> parameter, which is one of =over 4 =item C<LIBNBD_READ_DATA> = 1 C<subbuf> was populated with C<count> bytes of data. On input, C<error> contains the errno value of any earlier detected error, or zero. =item C<LIBNBD_READ_HOLE> = 2 C<subbuf> represents a hole, and contains C<count> NUL bytes. On input, C<error> contains the errno value of any earlier detected error, or zero. =item C<LIBNBD_READ_ERROR> = 3 C<count> is 0, so C<subbuf> is unusable. On input, C<error> contains the errno value reported by the server as occurring while reading that C<offset>, regardless if any earlier error has been detected. =back Future NBD extensions may permit other values for C<status>, but those will not be returned to a client that has not opted in to requesting such extensions. If the server is non-compliant, it is possible for the C<chunk> function to be called more times than you expect or with C<count> 0 for C<LIBNBD_READ_DATA> or C<LIBNBD_READ_HOLE>. It is also possible that the C<chunk> function is not called at all (in particular, C<LIBNBD_READ_ERROR> is used only when an error is associated with a particular offset, and not when the server reports a generic error), but you are guaranteed that the callback was called at least once if the overall read succeeds. Libnbd does not validate that the server obeyed the requirement that a read call must not have overlapping chunks and must not succeed without enough chunks to cover the entire request. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_DF> meaning that the server should not reply with more than one fragment (if that is supported - some servers cannot do this, see L<nbd_can_df(3)>). Libnbd does not validate that the server actually obeys the flag. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_PREAD_STRUCTURED 1 =head1 SEE ALSO L<nbd_can_df(3)>, L<nbd_pread(3)>, L<nbd_aio_pread_structured(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �libnbd-1.2.2/docs/nbd_pwrite.pod��������������������������������������������������������������������0000444�0001750�0001750�00000010330�13616543402�013457� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_pwrite - write to the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, uint32_t flags); =head1 DESCRIPTION Issue a write command to the NBD server, writing the data in C<buf> to the range starting at C<offset> and ending at C<offset> + C<count> - 1. NBD can only write all or nothing using this call. The call returns when the command has been acknowledged by the server, or there is an error. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_FUA> meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see L<nbd_can_fua(3)>). =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_PWRITE 1 =head1 EXAMPLE This example is also available as F<examples/reads-and-writes.c> in the libnbd source code. /* This example shows how to do synchronous reads * and writes randomly over the first megabyte of an * NBD server. Note this will destroy any existing * content on the NBD server. * * To test it with nbdkit and a RAM disk: * * nbdkit -U - memory 1M \ * --run './simple-reads-and-writes $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <inttypes.h> #include <assert.h> #include <time.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; size_t i; int64_t exportsize; uint64_t offset; srand (time (NULL)); if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Get the size of the disk and check * it's large enough. */ exportsize = nbd_get_size (nbd); if (exportsize == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (exportsize >= sizeof buf); /* Check that the server is writable. */ if (nbd_is_read_only (nbd) == 1) { fprintf (stderr, "%s: " "error: this NBD export is read-only\n", argv[0]); exit (EXIT_FAILURE); } for (i = 0; i < sizeof buf; ++i) buf[i] = rand (); /* 1000 writes. */ for (i = 0; i < 1000; ++i) { offset = rand () % (exportsize - sizeof buf); if (nbd_pwrite (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* 1000 reads and writes. */ for (i = 0; i < 1000; ++i) { offset = rand () % (exportsize - sizeof buf); if (nbd_pread (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } offset = rand () % (exportsize - sizeof buf); if (nbd_pwrite (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Sends a graceful shutdown to the server. */ if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_can_fua(3)>, L<nbd_is_read_only(3)>, L<nbd_aio_pwrite(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_shutdown.pod������������������������������������������������������������������0000444�0001750�0001750�00000010132�13571455450�014025� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_shutdown - disconnect from the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_shutdown (struct nbd_handle *h, uint32_t flags); =head1 DESCRIPTION Issue the disconnect command to the NBD server. This is a nice way to tell the server we are going away, but from the client's point of view has no advantage over abruptly closing the connection (see L<nbd_close(3)>). This function works whether or not the handle is ready for transmission of commands, and as such does not take a C<flags> parameter. If more fine-grained control is needed, see L<nbd_aio_disconnect(3)>. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions). =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SHUTDOWN 1 =head1 EXAMPLE This example is also available as F<examples/reads-and-writes.c> in the libnbd source code. /* This example shows how to do synchronous reads * and writes randomly over the first megabyte of an * NBD server. Note this will destroy any existing * content on the NBD server. * * To test it with nbdkit and a RAM disk: * * nbdkit -U - memory 1M \ * --run './simple-reads-and-writes $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <inttypes.h> #include <assert.h> #include <time.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; size_t i; int64_t exportsize; uint64_t offset; srand (time (NULL)); if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Get the size of the disk and check * it's large enough. */ exportsize = nbd_get_size (nbd); if (exportsize == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (exportsize >= sizeof buf); /* Check that the server is writable. */ if (nbd_is_read_only (nbd) == 1) { fprintf (stderr, "%s: " "error: this NBD export is read-only\n", argv[0]); exit (EXIT_FAILURE); } for (i = 0; i < sizeof buf; ++i) buf[i] = rand (); /* 1000 writes. */ for (i = 0; i < 1000; ++i) { offset = rand () % (exportsize - sizeof buf); if (nbd_pwrite (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* 1000 reads and writes. */ for (i = 0; i < 1000; ++i) { offset = rand () % (exportsize - sizeof buf); if (nbd_pread (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } offset = rand () % (exportsize - sizeof buf); if (nbd_pwrite (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Sends a graceful shutdown to the server. */ if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_close(3)>, L<nbd_aio_disconnect(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_flush.pod���������������������������������������������������������������������0000444�0001750�0001750�00000002327�13571455450�013302� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_flush - send flush command to the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_flush (struct nbd_handle *h, uint32_t flags); =head1 DESCRIPTION Issue the flush command to the NBD server. The function should return when all write commands which have completed have been committed to permanent storage on the server. Note this will return an error if L<nbd_can_flush(3)> is false. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions). =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_FLUSH 1 =head1 SEE ALSO L<nbd_can_flush(3)>, L<nbd_aio_flush(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_trim.pod����������������������������������������������������������������������0000444�0001750�0001750�00000002745�13571455450�013140� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_trim - send trim command to the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags); =head1 DESCRIPTION Issue a trim command to the NBD server, which if supported by the server causes a hole to be punched in the backing store starting at C<offset> and ending at C<offset> + C<count> - 1. The call returns when the command has been acknowledged by the server, or there is an error. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_FUA> meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see L<nbd_can_fua(3)>). =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_TRIM 1 =head1 SEE ALSO L<nbd_can_fua(3)>, L<nbd_can_trim(3)>, L<nbd_aio_trim(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������libnbd-1.2.2/docs/nbd_cache.pod���������������������������������������������������������������������0000444�0001750�0001750�00000002540�13571455450�013221� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_cache - send cache (prefetch) command to the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags); =head1 DESCRIPTION Issue the cache (prefetch) command to the NBD server, which if supported by the server causes data to be prefetched into faster storage by the server, speeding up a subsequent L<nbd_pread(3)> call. The server can also silently ignore this command. Note this will return an error if L<nbd_can_cache(3)> is false. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions). =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CACHE 1 =head1 SEE ALSO L<nbd_can_cache(3)>, L<nbd_aio_cache(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_zero.pod����������������������������������������������������������������������0000444�0001750�0001750�00000003521�13571455450�013135� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_zero - send write zeroes command to the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, uint32_t flags); =head1 DESCRIPTION Issue a write zeroes command to the NBD server, which if supported by the server causes a zeroes to be written efficiently starting at C<offset> and ending at C<offset> + C<count> - 1. The call returns when the command has been acknowledged by the server, or there is an error. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_FUA> meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see L<nbd_can_fua(3)>), C<LIBNBD_CMD_FLAG_NO_HOLE> meaning that the server should favor writing actual allocated zeroes over punching a hole, and/or C<LIBNBD_CMD_FLAG_FAST_ZERO> meaning that the server must fail quickly if writing zeroes is no faster than a normal write (if that is supported - some servers cannot do this, see L<nbd_can_fast_zero(3)>). =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_ZERO 1 =head1 SEE ALSO L<nbd_can_fua(3)>, L<nbd_can_zero(3)>, L<nbd_can_fast_zero(3)>, L<nbd_aio_zero(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_block_status.pod��������������������������������������������������������������0000444�0001750�0001750�00000007743�13571455450�014665� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_block_status - send block status command to the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, const char *metacontext, uint64_t offset, uint32_t *entries, size_t nr_entries, int *error); void *user_data; void (*free) (void *user_data); } nbd_extent_callback; int nbd_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent_callback, uint32_t flags); =head1 DESCRIPTION Issue the block status command to the NBD server. If supported by the server, this causes metadata context information about blocks beginning from the specified offset to be returned. The C<count> parameter is a hint: the server may choose to return less status, or the final block may extend beyond the requested range. If multiple contexts are supported, the number of blocks and cumulative length of those blocks need not be identical between contexts. Depending on which metadata contexts were enabled before connecting (see L<nbd_add_meta_context(3)>) and which are supported by the server (see L<nbd_can_meta_context(3)>) this call returns information about extents by calling back to the C<extent> function. The callback cannot call C<nbd_*> APIs on the same handle since it holds the handle lock and will cause a deadlock. If the callback returns C<-1>, and no earlier error has been detected, then the overall block status command will fail with any non-zero value stored into the callback's C<error> parameter (with a default of C<EPROTO>); but any further contexts will still invoke the callback. The C<extent> function is called once per type of metadata available, with the C<user_data> passed to this function. The C<metacontext> parameter is a string such as C<"base:allocation">. The C<entries> array is an array of pairs of integers with the first entry in each pair being the length (in bytes) of the block and the second entry being a status/flags field which is specific to the metadata context. (The number of pairs passed to the function is C<nr_entries/2>.) The NBD protocol document in the section about C<NBD_REPLY_TYPE_BLOCK_STATUS> describes the meaning of this array; for contexts known to libnbd, B<E<lt>libnbd.hE<gt>> contains constants beginning with C<LIBNBD_STATE_> that may help decipher the values. On entry to the callback, the C<error> parameter contains the errno value of any previously detected error. It is possible for the extent function to be called more times than you expect (if the server is buggy), so always check the C<metacontext> field to ensure you are receiving the data you expect. It is also possible that the extent function is not called at all, even for metadata contexts that you requested. This indicates either that the server doesn't support the context or for some other reason cannot return the data. The C<flags> parameter may be C<0> for no flags, or may contain C<LIBNBD_CMD_FLAG_REQ_ONE> meaning that the server should return only one extent per metadata context where that extent does not exceed C<count> bytes; however, libnbd does not validate that the server obeyed the flag. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_BLOCK_STATUS 1 =head1 SEE ALSO L<nbd_add_meta_context(3)>, L<nbd_can_meta_context(3)>, L<nbd_aio_block_status(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������libnbd-1.2.2/docs/nbd_poll.pod����������������������������������������������������������������������0000444�0001750�0001750�00000011204�13571455450�013121� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_poll - poll the handle once =head1 SYNOPSIS #include <libnbd.h> int nbd_poll (struct nbd_handle *h, int timeout); =head1 DESCRIPTION This is a simple implementation of L<poll(2)> which is used internally by synchronous API calls. On success, it returns C<0> if the C<timeout> (in milliseconds) occurs, or C<1> if the poll completed and the state machine progressed. Set C<timeout> to C<-1> to block indefinitely (but be careful that eventual action is actually expected - for example, if the connection is established but there are no commands in flight, using an infinite timeout will permanently block). This function is mainly useful as an example of how you might integrate libnbd with your own main loop, rather than being intended as something you would use. =head1 RETURN VALUE This call returns an integer E<ge> C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_POLL 1 =head1 EXAMPLE This example is also available as F<examples/aio-connect-read.c> in the libnbd source code. /* This example shows how to use the AIO (asynchronous) low * level API to connect to a server and read the disk. * * Here are a few ways to try this example: * * nbdkit -U - linuxdisk . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - floppy . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - pattern size=1M \ * --run './aio-connect-read $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <assert.h> #include <libnbd.h> #define NR_SECTORS 32 #define SECTOR_SIZE 512 struct data { uint64_t offset; char sector[SECTOR_SIZE]; }; static int hexdump (void *user_data, int *error) { struct data *data = user_data; FILE *pp; printf ("sector at offset 0x%" PRIx64 ":\n", data->offset); pp = popen ("hexdump -C", "w"); if (pp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (data->sector, SECTOR_SIZE, 1, pp); pclose (pp); printf ("\n"); /* Returning 1 from the callback automatically retires * the command. */ return 1; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; struct data data[NR_SECTORS]; size_t i; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a Unix domain socket. * This only starts the connection. */ if (nbd_aio_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Wait for the connection to complete. The use of * nbd_poll here is only as an example. You could also * integrate this with poll(2), glib or another main * loop. Read libnbd(3) and the source file lib/poll.c. */ while (!nbd_aio_is_ready (nbd)) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } assert (nbd_get_size (nbd) >= NR_SECTORS * SECTOR_SIZE); /* Issue read commands for the first NR sectors. */ for (i = 0; i < NR_SECTORS; ++i) { data[i].offset = i * SECTOR_SIZE; /* The callback (hexdump) is called when the command * completes. The buffer must continue to exist while * the command is running. */ if (nbd_aio_pread (nbd, data[i].sector, SECTOR_SIZE, data[i].offset, (nbd_completion_callback) { .callback = hexdump, .user_data = &data[i], }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Run the main loop until all the commands have * completed and retired. Again the use of nbd_poll * here is only as an example. */ while (nbd_aio_in_flight (nbd) > 0) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_connect.pod���������������������������������������������������������������0000444�0001750�0001750�00000002345�13616543402�014435� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_connect - connect to the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_connect (struct nbd_handle *h, const struct sockaddr *addr, socklen_t addrlen); =head1 DESCRIPTION Begin connecting to the NBD server. The C<addr> and C<addrlen> parameters specify the address of the socket to connect to. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_CONNECT 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_connect_uri.pod�����������������������������������������������������������0000444�0001750�0001750�00000002350�13571455450�015315� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_connect_uri - connect to an NBD URI =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_connect_uri (struct nbd_handle *h, const char *uri); =head1 DESCRIPTION Begin connecting to the NBD URI C<uri>. Parameters behave as documented in L<nbd_connect_uri(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_CONNECT_URI 1 =head1 SEE ALSO L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/uri.md>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_connect_unix.pod����������������������������������������������������������0000444�0001750�0001750�00000011101�13571455450�015473� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_connect_unix - connect to the NBD server over a Unix domain socket =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_connect_unix (struct nbd_handle *h, const char *unixsocket); =head1 DESCRIPTION Begin connecting to the NBD server over Unix domain socket (C<unixsocket>). Parameters behave as documented in L<nbd_connect_unix(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_CONNECT_UNIX 1 =head1 EXAMPLE This example is also available as F<examples/aio-connect-read.c> in the libnbd source code. /* This example shows how to use the AIO (asynchronous) low * level API to connect to a server and read the disk. * * Here are a few ways to try this example: * * nbdkit -U - linuxdisk . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - floppy . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - pattern size=1M \ * --run './aio-connect-read $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <assert.h> #include <libnbd.h> #define NR_SECTORS 32 #define SECTOR_SIZE 512 struct data { uint64_t offset; char sector[SECTOR_SIZE]; }; static int hexdump (void *user_data, int *error) { struct data *data = user_data; FILE *pp; printf ("sector at offset 0x%" PRIx64 ":\n", data->offset); pp = popen ("hexdump -C", "w"); if (pp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (data->sector, SECTOR_SIZE, 1, pp); pclose (pp); printf ("\n"); /* Returning 1 from the callback automatically retires * the command. */ return 1; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; struct data data[NR_SECTORS]; size_t i; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a Unix domain socket. * This only starts the connection. */ if (nbd_aio_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Wait for the connection to complete. The use of * nbd_poll here is only as an example. You could also * integrate this with poll(2), glib or another main * loop. Read libnbd(3) and the source file lib/poll.c. */ while (!nbd_aio_is_ready (nbd)) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } assert (nbd_get_size (nbd) >= NR_SECTORS * SECTOR_SIZE); /* Issue read commands for the first NR sectors. */ for (i = 0; i < NR_SECTORS; ++i) { data[i].offset = i * SECTOR_SIZE; /* The callback (hexdump) is called when the command * completes. The buffer must continue to exist while * the command is running. */ if (nbd_aio_pread (nbd, data[i].sector, SECTOR_SIZE, data[i].offset, (nbd_completion_callback) { .callback = hexdump, .user_data = &data[i], }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Run the main loop until all the commands have * completed and retired. Again the use of nbd_poll * here is only as an example. */ while (nbd_aio_in_flight (nbd) > 0) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_connect_vsock.pod���������������������������������������������������������0000444�0001750�0001750�00000002406�13571455450�015645� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_connect_vsock - connect to the NBD server over AF_VSOCK socket =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_connect_vsock (struct nbd_handle *h, uint32_t cid, uint32_t port); =head1 DESCRIPTION Begin connecting to the NBD server over the C<AF_VSOCK> protocol to the server C<cid:port>. Parameters behave as documented in L<nbd_connect_vsock(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_CONNECT_VSOCK 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_connect_tcp.pod�����������������������������������������������������������0000444�0001750�0001750�00000002401�13571455450�015301� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_connect_tcp - connect to the NBD server over a TCP port =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_connect_tcp (struct nbd_handle *h, const char *hostname, const char *port); =head1 DESCRIPTION Begin connecting to the NBD server listening on C<hostname:port>. Parameters behave as documented in L<nbd_connect_tcp(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_CONNECT_TCP 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_connect_socket.pod��������������������������������������������������������0000444�0001750�0001750�00000002246�13571455450�016012� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_connect_socket - connect directly to a connected socket =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_connect_socket (struct nbd_handle *h, int sock); =head1 DESCRIPTION Begin connecting to the connected socket C<fd>. Parameters behave as documented in L<nbd_connect_socket(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_CONNECT_SOCKET 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_connect_command.pod�������������������������������������������������������0000444�0001750�0001750�00000002335�13571455450�016137� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_connect_command - connect to the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_connect_command (struct nbd_handle *h, char **argv); =head1 DESCRIPTION Run the command as a subprocess and begin connecting to it over stdin/stdout. Parameters behave as documented in L<nbd_connect_command(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_CONNECT_COMMAND 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_connect_systemd_socket_activation.pod�������������������������������������0000444�0001750�0001750�00000002524�13571455450�022002� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_connect_systemd_socket_activation - connect using systemd socket activation =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_connect_systemd_socket_activation (struct nbd_handle *h, char **argv); =head1 DESCRIPTION Run the command as a subprocess and begin connecting to it using systemd socket activation. Parameters behave as documented in L<nbd_connect_systemd_socket_activation(3)>. You can check if the connection is still connecting by calling L<nbd_aio_is_connecting(3)>, or if it has connected to the server and completed the NBD handshake by calling L<nbd_aio_is_ready(3)>, on the connection. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be newly created, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.2. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_CONNECT_SYSTEMD_SOCKET_ACTIVATION 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_pread.pod�����������������������������������������������������������������0000444�0001750�0001750�00000012012�13571455450�014074� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_pread - read from the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, int *error); void *user_data; void (*free) (void *user_data); } nbd_completion_callback; int64_t nbd_aio_pread (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); =head1 DESCRIPTION Issue a read command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Note that you must ensure C<buf> is valid until the command has completed. Other parameters behave as documented in L<nbd_pread(3)>. =head1 RETURN VALUE This call returns the 64 bit cookie of the command. The cookie is E<ge> C<1>. Cookies are unique (per libnbd handle, not globally). =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_PREAD 1 =head1 EXAMPLE This example is also available as F<examples/aio-connect-read.c> in the libnbd source code. /* This example shows how to use the AIO (asynchronous) low * level API to connect to a server and read the disk. * * Here are a few ways to try this example: * * nbdkit -U - linuxdisk . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - floppy . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - pattern size=1M \ * --run './aio-connect-read $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <assert.h> #include <libnbd.h> #define NR_SECTORS 32 #define SECTOR_SIZE 512 struct data { uint64_t offset; char sector[SECTOR_SIZE]; }; static int hexdump (void *user_data, int *error) { struct data *data = user_data; FILE *pp; printf ("sector at offset 0x%" PRIx64 ":\n", data->offset); pp = popen ("hexdump -C", "w"); if (pp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (data->sector, SECTOR_SIZE, 1, pp); pclose (pp); printf ("\n"); /* Returning 1 from the callback automatically retires * the command. */ return 1; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; struct data data[NR_SECTORS]; size_t i; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a Unix domain socket. * This only starts the connection. */ if (nbd_aio_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Wait for the connection to complete. The use of * nbd_poll here is only as an example. You could also * integrate this with poll(2), glib or another main * loop. Read libnbd(3) and the source file lib/poll.c. */ while (!nbd_aio_is_ready (nbd)) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } assert (nbd_get_size (nbd) >= NR_SECTORS * SECTOR_SIZE); /* Issue read commands for the first NR sectors. */ for (i = 0; i < NR_SECTORS; ++i) { data[i].offset = i * SECTOR_SIZE; /* The callback (hexdump) is called when the command * completes. The buffer must continue to exist while * the command is running. */ if (nbd_aio_pread (nbd, data[i].sector, SECTOR_SIZE, data[i].offset, (nbd_completion_callback) { .callback = hexdump, .user_data = &data[i], }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Run the main loop until all the commands have * completed and retired. Again the use of nbd_poll * here is only as an example. */ while (nbd_aio_in_flight (nbd) > 0) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<libnbd(3)/Issuing asynchronous commands>, L<nbd_aio_pread_structured(3)>, L<nbd_pread(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_pread_structured.pod������������������������������������������������������0000444�0001750�0001750�00000004043�13571455450�016365� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_pread_structured - read from the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, const void *subbuf, size_t count, uint64_t offset, unsigned status, int *error); void *user_data; void (*free) (void *user_data); } nbd_chunk_callback; typedef struct { int (*callback) (void *user_data, int *error); void *user_data; void (*free) (void *user_data); } nbd_completion_callback; int64_t nbd_aio_pread_structured (struct nbd_handle *h, void *buf, size_t count, uint64_t offset, nbd_chunk_callback chunk_callback, nbd_completion_callback completion_callback, uint32_t flags); =head1 DESCRIPTION Issue a read command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_pread_structured(3)>. =head1 RETURN VALUE This call returns the 64 bit cookie of the command. The cookie is E<ge> C<1>. Cookies are unique (per libnbd handle, not globally). =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_PREAD_STRUCTURED 1 =head1 SEE ALSO L<libnbd(3)/Issuing asynchronous commands>, L<nbd_aio_pread(3)>, L<nbd_pread_structured(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_pwrite.pod����������������������������������������������������������������0000444�0001750�0001750�00000003331�13616543402�014312� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_pwrite - write to the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, int *error); void *user_data; void (*free) (void *user_data); } nbd_completion_callback; int64_t nbd_aio_pwrite (struct nbd_handle *h, const void *buf, size_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); =head1 DESCRIPTION Issue a write command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Note that you must ensure C<buf> is valid until the command has completed. Other parameters behave as documented in L<nbd_pwrite(3)>. =head1 RETURN VALUE This call returns the 64 bit cookie of the command. The cookie is E<ge> C<1>. Cookies are unique (per libnbd handle, not globally). =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_PWRITE 1 =head1 SEE ALSO L<libnbd(3)/Issuing asynchronous commands>, L<nbd_is_read_only(3)>, L<nbd_pwrite(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_disconnect.pod������������������������������������������������������������0000444�0001750�0001750�00000003275�13571455450�015145� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_disconnect - disconnect from the NBD server =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_disconnect (struct nbd_handle *h, uint32_t flags); =head1 DESCRIPTION Issue the disconnect command to the NBD server. This is not a normal command because NBD servers are not obliged to send a reply. Instead you should wait for L<nbd_aio_is_closed(3)> to become true on the connection. Once this command is issued, you cannot issue any further commands. Although libnbd does not prevent you from issuing this command while still waiting on the replies to previous commands, the NBD protocol recommends that you wait until there are no other commands in flight (see L<nbd_aio_in_flight(3)>), to give the server a better chance at a clean shutdown. The C<flags> parameter must be C<0> for now (it exists for future NBD protocol extensions). There is no direct synchronous counterpart; however, L<nbd_shutdown(3)> will call this function if appropriate. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_DISCONNECT 1 =head1 SEE ALSO L<nbd_aio_in_flight(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_flush.pod�����������������������������������������������������������������0000444�0001750�0001750�00000003060�13571455450�014125� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_flush - send flush command to the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, int *error); void *user_data; void (*free) (void *user_data); } nbd_completion_callback; int64_t nbd_aio_flush (struct nbd_handle *h, nbd_completion_callback completion_callback, uint32_t flags); =head1 DESCRIPTION Issue the flush command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_flush(3)>. =head1 RETURN VALUE This call returns the 64 bit cookie of the command. The cookie is E<ge> C<1>. Cookies are unique (per libnbd handle, not globally). =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_FLUSH 1 =head1 SEE ALSO L<libnbd(3)/Issuing asynchronous commands>, L<nbd_can_flush(3)>, L<nbd_flush(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_trim.pod������������������������������������������������������������������0000444�0001750�0001750�00000003134�13571455450�013761� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_trim - send trim command to the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, int *error); void *user_data; void (*free) (void *user_data); } nbd_completion_callback; int64_t nbd_aio_trim (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); =head1 DESCRIPTION Issue a trim command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_trim(3)>. =head1 RETURN VALUE This call returns the 64 bit cookie of the command. The cookie is E<ge> C<1>. Cookies are unique (per libnbd handle, not globally). =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_TRIM 1 =head1 SEE ALSO L<libnbd(3)/Issuing asynchronous commands>, L<nbd_can_trim(3)>, L<nbd_trim(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_cache.pod�����������������������������������������������������������������0000444�0001750�0001750�00000003177�13571455450�014060� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_cache - send cache (prefetch) command to the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, int *error); void *user_data; void (*free) (void *user_data); } nbd_completion_callback; int64_t nbd_aio_cache (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); =head1 DESCRIPTION Issue the cache (prefetch) command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_cache(3)>. =head1 RETURN VALUE This call returns the 64 bit cookie of the command. The cookie is E<ge> C<1>. Cookies are unique (per libnbd handle, not globally). =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_CACHE 1 =head1 SEE ALSO L<libnbd(3)/Issuing asynchronous commands>, L<nbd_can_cache(3)>, L<nbd_cache(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_zero.pod������������������������������������������������������������������0000444�0001750�0001750�00000003205�13571455450�013764� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_zero - send write zeroes command to the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, int *error); void *user_data; void (*free) (void *user_data); } nbd_completion_callback; int64_t nbd_aio_zero (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_completion_callback completion_callback, uint32_t flags); =head1 DESCRIPTION Issue a write zeroes command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_zero(3)>. =head1 RETURN VALUE This call returns the 64 bit cookie of the command. The cookie is E<ge> C<1>. Cookies are unique (per libnbd handle, not globally). =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_ZERO 1 =head1 SEE ALSO L<libnbd(3)/Issuing asynchronous commands>, L<nbd_can_zero(3)>, L<nbd_can_fast_zero(3)>, L<nbd_zero(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_block_status.pod����������������������������������������������������������0000444�0001750�0001750�00000004070�13571455450�015503� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_block_status - send block status command to the NBD server =head1 SYNOPSIS #include <libnbd.h> typedef struct { int (*callback) (void *user_data, const char *metacontext, uint64_t offset, uint32_t *entries, size_t nr_entries, int *error); void *user_data; void (*free) (void *user_data); } nbd_extent_callback; typedef struct { int (*callback) (void *user_data, int *error); void *user_data; void (*free) (void *user_data); } nbd_completion_callback; int64_t nbd_aio_block_status (struct nbd_handle *h, uint64_t count, uint64_t offset, nbd_extent_callback extent_callback, nbd_completion_callback completion_callback, uint32_t flags); =head1 DESCRIPTION Send the block status command to the NBD server. To check if the command completed, call L<nbd_aio_command_completed(3)>. Or supply the optional C<completion_callback> which will be invoked as described in L<libnbd(3)/Completion callbacks>. Other parameters behave as documented in L<nbd_block_status(3)>. =head1 RETURN VALUE This call returns the 64 bit cookie of the command. The cookie is E<ge> C<1>. Cookies are unique (per libnbd handle, not globally). =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_BLOCK_STATUS 1 =head1 SEE ALSO L<libnbd(3)/Issuing asynchronous commands>, L<nbd_can_meta_context(3)>, L<nbd_block_status(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_get_fd.pod����������������������������������������������������������������0000444�0001750�0001750�00000002056�13571455450�014240� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_get_fd - return file descriptor associated with this connection =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_get_fd (struct nbd_handle *h); =head1 DESCRIPTION Return the underlying file descriptor associated with this connection. You can use this to check if the file descriptor is ready for reading or writing and call L<nbd_aio_notify_read(3)> or L<nbd_aio_notify_write(3)>. See also L<nbd_aio_get_direction(3)>. Do not do anything else with the file descriptor. =head1 RETURN VALUE This call returns a file descriptor. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_GET_FD 1 =head1 SEE ALSO L<nbd_aio_get_direction(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_get_direction.pod���������������������������������������������������������0000444�0001750�0001750�00000005300�13571455450�015622� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_get_direction - return the read or write direction =head1 SYNOPSIS #include <libnbd.h> unsigned nbd_aio_get_direction (struct nbd_handle *h); =head1 DESCRIPTION Return the current direction of this connection, which means whether we are next expecting to read data from the server, write data to the server, or both. It returns =over 4 =item 0 We are not expected to interact with the server file descriptor from the current state. It is not worth attempting to use L<poll(2)>; if the connection is not dead, then state machine progress must instead come from some other means such as L<nbd_aio_connect(3)>. =item C<LIBNBD_AIO_DIRECTION_READ> = 1 We are expected next to read from the server. If using L<poll(2)> you would set C<events = POLLIN>. If C<revents> returns C<POLLIN> or C<POLLHUP> you would then call L<nbd_aio_notify_read(3)>. Note that once libnbd reaches L<nbd_aio_is_ready(3)>, this direction is returned even when there are no commands in flight (see L<nbd_aio_in_flight(3)>). In a single-threaded use of libnbd, it is not worth polling until after issuing a command, as otherwise the server will never wake up the poll. In a multi-threaded scenario, you can have one thread begin a polling loop prior to any commands, but any other thread that issues a command will need a way to kick the polling thread out of poll in case issuing the command changes the needed polling direction. Possible ways to do this include polling for activity on a pipe-to-self, or using L<pthread_kill(3)> to send a signal that is masked except during L<ppoll(2)>. =item C<LIBNBD_AIO_DIRECTION_WRITE> = 2 We are expected next to write to the server. If using L<poll(2)> you would set C<events = POLLOUT>. If C<revents> returns C<POLLOUT> you would then call L<nbd_aio_notify_write(3)>. =item C<LIBNBD_AIO_DIRECTION_BOTH> = 3 We are expected next to either read or write to the server. If using L<poll(2)> you would set C<events = POLLIN|POLLOUT>. If only one of C<POLLIN> or C<POLLOUT> is returned, then see above. However, if both are returned, it is better to call only L<nbd_aio_notify_read(3)>, as processing the server's reply may change the state of the connection and invalidate the need to write more commands. =back =head1 RETURN VALUE This call returns a bitmask. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_GET_DIRECTION 1 =head1 SEE ALSO L<nbd_aio_in_flight(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_notify_read.pod�����������������������������������������������������������0000444�0001750�0001750�00000001666�13571455450�015321� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_notify_read - notify that the connection is readable =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_notify_read (struct nbd_handle *h); =head1 DESCRIPTION Send notification to the state machine that the connection is readable. Typically this is called after your main loop has detected that the file descriptor associated with this connection is readable. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_NOTIFY_READ 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_notify_write.pod����������������������������������������������������������0000444�0001750�0001750�00000001671�13571455450�015534� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_notify_write - notify that the connection is writable =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_notify_write (struct nbd_handle *h); =head1 DESCRIPTION Send notification to the state machine that the connection is writable. Typically this is called after your main loop has detected that the file descriptor associated with this connection is writable. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_NOTIFY_WRITE 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_is_created.pod������������������������������������������������������������0000444�0001750�0001750�00000001563�13571455450�015114� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_is_created - check if the connection has just been created =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_is_created (struct nbd_handle *h); =head1 DESCRIPTION Return true if this connection has just been created. This is the state before the handle has started connecting to a server. In this state the handle can start to be connected by calling functions such as L<nbd_aio_connect(3)>. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_IS_CREATED 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_is_connecting.pod���������������������������������������������������������0000444�0001750�0001750�00000001607�13571455450�015633� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_is_connecting - check if the connection is connecting or handshaking =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_is_connecting (struct nbd_handle *h); =head1 DESCRIPTION Return true if this connection is connecting to the server or in the process of handshaking and negotiating options which happens before the handle becomes ready to issue commands (see L<nbd_aio_is_ready(3)>). =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_IS_CONNECTING 1 =head1 SEE ALSO L<nbd_aio_is_ready(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_is_ready.pod��������������������������������������������������������������0000444�0001750�0001750�00000001513�13571455450�014604� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_is_ready - check if the connection is in the ready state =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_is_ready (struct nbd_handle *h); =head1 DESCRIPTION Return true if this connection is connected to the NBD server, the handshake has completed, and the connection is idle or waiting for a reply. In this state the handle is ready to issue commands. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_IS_READY 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_is_processing.pod���������������������������������������������������������0000444�0001750�0001750�00000002007�13571455450�015653� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_is_processing - check if the connection is processing a command =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_is_processing (struct nbd_handle *h); =head1 DESCRIPTION Return true if this connection is connected to the NBD server, the handshake has completed, and the connection is processing commands (either writing out a request or reading a reply). Note the ready state (L<nbd_aio_is_ready(3)>) is not included. In the ready state commands may be I<in flight> (the I<server> is processing them), but libnbd is not processing them. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_IS_PROCESSING 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_is_dead.pod���������������������������������������������������������������0000444�0001750�0001750�00000001445�13571455450�014401� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_is_dead - check if the connection is dead =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_is_dead (struct nbd_handle *h); =head1 DESCRIPTION Return true if the connection has encountered a fatal error and is dead. In this state the handle may only be closed. There is no way to recover a handle from the dead state. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_IS_DEAD 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_is_closed.pod�������������������������������������������������������������0000444�0001750�0001750�00000001404�13571455450�014750� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_is_closed - check if the connection is closed =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_is_closed (struct nbd_handle *h); =head1 DESCRIPTION Return true if the connection has closed. There is no way to reconnect a closed connection. Instead you must close the whole handle. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_IS_CLOSED 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_command_completed.pod�����������������������������������������������������0000444�0001750�0001750�00000002422�13571455450�016457� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_command_completed - check if the command completed =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_command_completed (struct nbd_handle *h, int64_t cookie); =head1 DESCRIPTION Return true if the command completed. If this function returns true then the command was successful and it has been retired. Return false if the command is still in flight. This can also fail with an error in case the command failed (in this case the command is also retired). A command is retired either via this command, or by using a completion callback which returns C<1>. The C<cookie> parameter is the positive unique 64 bit cookie for the command, as returned by a call such as L<nbd_aio_pread(3)>. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_COMMAND_COMPLETED 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_peek_command_completed.pod������������������������������������������������0000444�0001750�0001750�00000002242�13571455450�017463� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_peek_command_completed - check if any command has completed =head1 SYNOPSIS #include <libnbd.h> int64_t nbd_aio_peek_command_completed (struct nbd_handle *h); =head1 DESCRIPTION Return the unique positive 64 bit cookie of the first non-retired but completed command, C<0> if there are in-flight commands but none of them are awaiting retirement, or C<-1> on error including when there are no in-flight commands. Any cookie returned by this function must still be passed to L<nbd_aio_command_completed(3)> to actually retire the command and learn whether the command was successful. =head1 RETURN VALUE This call returns a 64 bit signed integer E<ge> C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_PEEK_COMMAND_COMPLETED 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_aio_in_flight.pod�������������������������������������������������������������0000444�0001750�0001750�00000011312�13571455450�014746� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_aio_in_flight - check how many aio commands are still in flight =head1 SYNOPSIS #include <libnbd.h> int nbd_aio_in_flight (struct nbd_handle *h); =head1 DESCRIPTION Return the number of in-flight aio commands that are still awaiting a response from the server before they can be retired. If this returns a non-zero value when requesting a disconnect from the server (see L<nbd_aio_disconnect(3)> and L<nbd_shutdown(3)>), libnbd does not try to wait for those commands to complete gracefully; if the server strands commands while shutting down, L<nbd_aio_command_completed(3)> will report those commands as failed with a status of C<ENOTCONN>. =head1 RETURN VALUE This call returns an integer E<ge> C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 HANDLE STATE The handle must be connected and finished handshaking with the server, or shut down, or dead, otherwise this call will return an error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_AIO_IN_FLIGHT 1 =head1 EXAMPLE This example is also available as F<examples/aio-connect-read.c> in the libnbd source code. /* This example shows how to use the AIO (asynchronous) low * level API to connect to a server and read the disk. * * Here are a few ways to try this example: * * nbdkit -U - linuxdisk . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - floppy . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - pattern size=1M \ * --run './aio-connect-read $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <assert.h> #include <libnbd.h> #define NR_SECTORS 32 #define SECTOR_SIZE 512 struct data { uint64_t offset; char sector[SECTOR_SIZE]; }; static int hexdump (void *user_data, int *error) { struct data *data = user_data; FILE *pp; printf ("sector at offset 0x%" PRIx64 ":\n", data->offset); pp = popen ("hexdump -C", "w"); if (pp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (data->sector, SECTOR_SIZE, 1, pp); pclose (pp); printf ("\n"); /* Returning 1 from the callback automatically retires * the command. */ return 1; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; struct data data[NR_SECTORS]; size_t i; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a Unix domain socket. * This only starts the connection. */ if (nbd_aio_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Wait for the connection to complete. The use of * nbd_poll here is only as an example. You could also * integrate this with poll(2), glib or another main * loop. Read libnbd(3) and the source file lib/poll.c. */ while (!nbd_aio_is_ready (nbd)) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } assert (nbd_get_size (nbd) >= NR_SECTORS * SECTOR_SIZE); /* Issue read commands for the first NR sectors. */ for (i = 0; i < NR_SECTORS; ++i) { data[i].offset = i * SECTOR_SIZE; /* The callback (hexdump) is called when the command * completes. The buffer must continue to exist while * the command is running. */ if (nbd_aio_pread (nbd, data[i].sector, SECTOR_SIZE, data[i].offset, (nbd_completion_callback) { .callback = hexdump, .user_data = &data[i], }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Run the main loop until all the commands have * completed and retired. Again the use of nbd_poll * here is only as an example. */ while (nbd_aio_in_flight (nbd) > 0) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } =head1 SEE ALSO L<nbd_aio_disconnect(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_connection_state.pod����������������������������������������������������������0000444�0001750�0001750�00000002117�13571455450�015515� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_connection_state - return string describing the state of the connection =head1 SYNOPSIS #include <libnbd.h> const char * nbd_connection_state (struct nbd_handle *h); =head1 DESCRIPTION Returns a descriptive string for the state of the connection. This can be used for debugging or troubleshooting, but you should not rely on the state of connections since it may change in future versions. =head1 RETURN VALUE This call returns a statically allocated string, valid for the lifetime of the process or until libnbd is unloaded by L<dlclose(3)>. You B<must not> try to free the string. =head1 ERRORS On error C<NULL> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_CONNECTION_STATE 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_package_name.pod����������������������������������������������������������0000444�0001750�0001750�00000001616�13571455450�015413� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_package_name - return the name of the library =head1 SYNOPSIS #include <libnbd.h> const char * nbd_get_package_name (struct nbd_handle *h); =head1 DESCRIPTION Returns the name of the library, always C<"libnbd"> unless the library was modified with another name at compile time. =head1 RETURN VALUE This call returns a statically allocated string, valid for the lifetime of the process or until libnbd is unloaded by L<dlclose(3)>. You B<must not> try to free the string. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_PACKAGE_NAME 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_version.pod���������������������������������������������������������������0000444�0001750�0001750�00000003322�13571455450�014501� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_get_version - return the version of the library =head1 SYNOPSIS #include <libnbd.h> const char * nbd_get_version (struct nbd_handle *h); =head1 DESCRIPTION Return the version of libnbd. This is returned as a string in the form C<"major.minor.release"> where each of major, minor and release is a small positive integer. For example: minor ↓ "1.0.3" ↑ ↑ major release =over 4 =item major = 0 The major number was C<0> for the early experimental versions of libnbd where we still had an unstable API. =item major = 1 The major number is C<1> for the versions of libnbd with a long-term stable API and ABI. It is not anticipated that major will be any number other than C<1>. =item minor = 0, 2, ... (even) The minor number is even for stable releases. =item minor = 1, 3, ... (odd) The minor number is odd for development versions. Note that new APIs added in a development version remain experimental and subject to change in that branch until they appear in a stable release. =item release The release number is incremented for each release along a particular branch. =back =head1 RETURN VALUE This call returns a statically allocated string, valid for the lifetime of the process or until libnbd is unloaded by L<dlclose(3)>. You B<must not> try to free the string. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_GET_VERSION 1 =head1 SEE ALSO L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_kill_subprocess.pod�����������������������������������������������������������0000444�0001750�0001750�00000002213�13571455450�015356� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_kill_subprocess - kill server running as a subprocess =head1 SYNOPSIS #include <libnbd.h> int nbd_kill_subprocess (struct nbd_handle *h, int signum); =head1 DESCRIPTION This call may be used to kill the server running as a subprocess that was previously created using L<nbd_connect_command(3)>. You do not need to use this call. It is only needed if the server does not exit when the socket is closed. The C<signum> parameter is the optional signal number to send (see L<signal(7)>). If C<signum> is C<0> then C<SIGTERM> is sent. =head1 RETURN VALUE If the call is successful the function returns C<0>. =head1 ERRORS On error C<-1> is returned. Refer to L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_KILL_SUBPROCESS 1 =head1 SEE ALSO L<signal(7)>, L<nbd_connect_command(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_supports_tls.pod��������������������������������������������������������������0000444�0001750�0001750�00000001412�13571455450�014734� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_supports_tls - true if libnbd was compiled with support for TLS =head1 SYNOPSIS #include <libnbd.h> int nbd_supports_tls (struct nbd_handle *h); =head1 DESCRIPTION Returns true if libnbd was compiled with gnutls which is required to support TLS encryption, or false if not. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SUPPORTS_TLS 1 =head1 SEE ALSO L<nbd_set_tls(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_supports_uri.pod��������������������������������������������������������������0000444�0001750�0001750�00000001451�13571455450�014734� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_supports_uri - true if libnbd was compiled with support for NBD URIs =head1 SYNOPSIS #include <libnbd.h> int nbd_supports_uri (struct nbd_handle *h); =head1 DESCRIPTION Returns true if libnbd was compiled with libxml2 which is required to support NBD URIs, or false if not. =head1 RETURN VALUE This call returns a boolean value. =head1 ERRORS This function does not fail. =head1 VERSION This function first appeared in libnbd 1.0. If you need to test if this function is available at compile time check if the following macro is defined: #define LIBNBD_HAVE_NBD_SUPPORTS_URI 1 =head1 SEE ALSO L<nbd_connect_uri(3)>, L<nbd_aio_connect_uri(3)>, L<nbd_create(3)>, L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/libnbd.pod������������������������������������������������������������������������0000664�0001750�0001750�00000066510�13562557674�012613� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME libnbd - network block device (NBD) client library in userspace =head1 SYNOPSIS #include <libnbd.h> struct nbd_handle *nbd; char buf[512]; if ((nbd = nbd_create ()) == NULL || nbd_connect_tcp (nbd, "server.example.com", "nbd") == -1 || nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } nbd_close (nbd); cc prog.c -o prog -lnbd or: cc prog.c -o prog `pkg-config libnbd --cflags --libs` =head1 DESCRIPTION Network Block Device (NBD) is a network protocol for accessing block devices over the network. Block devices are hard disks and things that behave like hard disks such as disk images and virtual machines. Libnbd is a client library for the NBD protocol which can access most of the features of NBD while being simple to use and powerful. This manual page gives an overview of libnbd, using C as an example, but the library is available from other programming languages. =over 4 =item L<nbd_create(3)>, L<nbd_pread(3)>, etc. Each manual page covers one function from the C API in detail. There is a full list in section L</C API> below. =item L<libnbd-ocaml(3)> Using the API from OCaml. =item L<nbdsh(1)> Using the NBD shell (nbdsh) for command line and scripting. =back =head1 HANDLES To use the API at all you must first open a handle by calling L<nbd_create(3)> (or its equivalent in other languages): struct nbd_handle *nbd; nbd = nbd_create (); This creates and returns a handle, which is associated with one connection to an NBD server, initially not connected. Each handle is a complex state machine which can be in states such as created, connected to a remote server, handshaking, idle and ready to issue commands, or busy sending or receiving commands. There are two levels of API available. A simple high level synchronous API lets you give the handle high level instructions like “connect to the serverâ€, “read a blockâ€, “write a blockâ€, etc. Each of these functions will run to completion, blocking the current thread before returning. A more complicated low level non-blocking asynchronous API is also available where you can integrate with L<poll(2)> or another main loop. You can freely mix the two APIs on the same handle. You can also call APIs on a single handle from multiple threads. Single API calls on the handle are atomic — they either take a lock on the handle while they run or are careful to access handle fields atomically. Libnbd does B<not> create its own threads. =head1 USING THE SYNCHRONOUS (“HIGH LEVELâ€) API This is the simplest way to use the API, with the possible drawback that each libnbd function blocks until it is finished. Create a handle and connect to the server: struct nbd_handle *nbd; nbd = nbd_create (); if (!nbd) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } if (nbd_connect_tcp (nbd, "server.example.com", "nbd") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } Read the first sector (512 bytes) from the NBD export: char buf[512]; if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } Close the handle: nbd_close (nbd); You can call the high level API from multiple threads, but each libnbd API call takes a lock on the handle and so commands will not run in parallel. =head1 USING THE ASYNCHRONOUS (“LOW LEVELâ€) API The low level API is useful if you want to use libnbd in non-blocking code; or if you want to issue commands in parallel from multiple threads; or if you need more control especially over having multiple commands in-flight on a single connection. To use the low level API you will need to integrate with L<poll(2)> or another “main loop†such as the GLib main event loop. =head2 Issuing asynchronous commands Use the C<nbd_aio_*> variants to issue commands asynchronously (without waiting for the command to complete before returning). For example the asynchronous variant of L<nbd_pread(3)> is: int64_t cookie; cookie = nbd_aio_pread (nbd, buf, sizeof buf, NBD_NULL_COMPLETION, 0); if (cookie == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } There are several things to note here: =over 4 =item * This only starts the command. The command is still in flight when the call returns. =item * A buffer (C<buf>) has been assigned to collect the result of the read, but it is not guaranteed to be filled with data until the command has completed (see examples below). The buffer must not be freed until the command has finished running. =item * You can issue multiple commands on the same handle at the same time. =item * A cookie is returned which identifies this command in subsequent calls. The cookie is unique (per libnbd handle) and E<ge> 1. =item * You may register a function which is called when the command completes, see L</Completion callbacks> below. In this case we have specified a null completion callback. =back =head2 Socket and direction Each libnbd handle has an associated socket (once it has started connecting). You can read the file descriptor of the socket using: int fd = nbd_aio_get_fd (nbd); The socket is non-blocking. Between calls into libnbd it is in the "would block" condition. You can find out if libnbd is expecting to read or write from the socket next by calling: int dir = nbd_aio_get_direction (nbd); which returns one of C<LIBNBD_AIO_DIRECTION_READ>, C<LIBNBD_AIO_DIRECTION_WRITE> or C<LIBNBD_AIO_DIRECTION_BOTH> (= C<READ|WRITE>). And so to set up the next call to L<poll(2)> or other main loop you must translate this to C<POLLIN>, C<POLLOUT> or C<POLLIN|POLLOUT> (or whatever mechanism your main loop uses). =head2 Notifying libnbd when an event happens When you detect (eg. using L<poll(2)>) that a read or write event has happened on the socket, you must then tell libnbd about it. You have to check the direction I<again> (since it may have been changed by another thread), and notify libnbd: int r = 0; dir = nbd_aio_get_direction (nbd); if ((dir & LIBNBD_AIO_DIRECTION_READ) && a_read_event_occurred ()) r = nbd_aio_notify_read (nbd); else if ((dir & LIBNBD_AIO_DIRECTION_WRITE) && a_write_event_occurred ()) r = nbd_aio_notify_write (nbd); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); // ... } The notify calls move the state machine along, reading and writing from the socket possibly multiple times, until the socket would block again, at which point they return control to the caller. =head2 Simple implementation with L<nbd_poll(3)> In fact if you want to use L<poll(2)> on a single handle, a simple implementation has already been written called L<nbd_poll(3)>. It is also useful to examine how this is implemented (F<lib/poll.c> in the libnbd source code) because that will tell you how to integrate libnbd with more complex main loops. Some examples of using L<nbd_poll(3)> follow. As with the high level API, it all starts by creating a handle: struct nbd_handle *nbd; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } To connect to the server asynchronously, we start the connection using L<nbd_aio_connect(3)> and then enter our main loop to check for events until the connection becomes ready: int fd; struct sockaddr_un addr; socklen_t len; /* some code to set up addr, then ... */ if (nbd_aio_connect (nbd, &addr, len) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } while (! nbd_aio_is_ready (nbd)) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } } To read data asynchronously, start an asynchronous read command, which returns a 64 bit command cookie, and enter the main loop until the command has completed: int64_t cookie; char buf[512]; cookie = nbd_aio_pread (nbd, buf, sizeof buf, offset, NBD_NULL_COMPLETION, 0); if (cookie == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } while (! nbd_aio_command_completed (nbd, cookie)) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } } For almost all high level synchronous calls (eg. L<nbd_pread(3)>) there is a low level asynchronous equivalent (eg. L<nbd_aio_pread(3)>) for starting a command. =head2 glib2 integration See L<https://github.com/libguestfs/libnbd/blob/master/examples/glib-main-loop.c> =head1 ERROR HANDLING When any API call returns an error (C<-1> or C<NULL> depending on the API), an error message and sometimes an errno value are available. You can retrieve the error message and/or errno of the most recently failed call using L<nbd_get_error(3)> and L<nbd_get_errno(3)>. For example: if (nbd_connect_tcp (nbd, "remote", "nbd") == -1) { fprintf (stderr, "failed to connect to remote server: %s (errno = %d)\n", nbd_get_error (), nbd_get_errno ()); } These functions use thread-local storage to return the most recent error in the current thread. This is why you don't need to pass the handle to these calls. They even work if L<nbd_create(3)> returns C<NULL> when there is no handle at all. For this reason you cannot call them from a different thread. You should call them immediately after the failed API call, from the same thread. Furthermore the error string returned by L<nbd_get_error(3)> is only valid until the next libnbd API call in the current thread, so if you need to keep the string you must copy it (eg. using L<strdup(3)>). =head2 Errno For some errors, a system call error number (see L<errno(3)>) is available. You can find the error number by calling L<nbd_get_errno(3)>. It works the same way as L<nbd_get_error(3)> with respect to threads. Even when a call returns an error, L<nbd_get_errno(3)> might return C<0>. This does I<not> mean there was no error. It means no additional errno information is available for this error. The error number is often the raw error returned by a system call that failed. It can also be used to indicate special conditions. The most common cases are: =over 4 =item C<EINVAL> Invalid parameters or state for the current libnbd call. =item C<ENOTSUP> The libnbd call is not available in this build of libnbd (eg. when using a TLS API if the library was compiled without TLS support). =item C<ENOMEM> The library ran out of memory while performing some operation. =item C<ERANGE> A request is too large, for example if you try to read too many bytes in a single L<nbd_pread(3)> call. =back =head1 DEBUGGING MESSAGES Libnbd can print lots of debugging messages, useful if you have a problem with the library. Either enable debugging after creating the handle: nbd = nbd_create (); nbd_set_debug (nbd, true); or set the C<LIBNBD_DEBUG=1> environment variable which will enable debugging by default on all new handles. Debugging messages are sent to stderr by default, but you can redirect them to a logging system using L<nbd_set_debug_callback(3)>. =head1 CONNECTING TO LOCAL OR REMOTE NBD SERVERS There are several ways to connect to NBD servers, and you can even run a server from libnbd. Normally you would connect to a server which is already running, over a local Unix domain socket or a remote TCP connection. The high level API calls are: nbd_connect_unix (nbd, "socket"); nbd_connect_tcp (nbd, "localhost", "nbd"); For L<nbd_connect_tcp(3)> the third parameter is the port name or number, which can either be a name from F</etc/services> or the port number as a string (eg. C<"10809">). =head2 Connecting to an NBD URI libnbd supports the L<NBD URI specification|https://github.com/NetworkBlockDevice/nbd/blob/master/doc/uri.md>. The URIs that libnbd currently supports is documented in L<nbd_connect_uri(3)>. You can connect to a URI as in these examples (using the high level API): nbd_connect_uri (nbd, "nbd://example.com/"); nbd_connect_uri (nbd, "nbds+unix:///export?socket=/tmp/nbd.sock"); This feature is implemented by calling other libnbd APIs to set up the export name, TLS parameters, and finally connect over a Unix domain socket or TCP. URI support is an optional feature of the library, requiring libxml2 at compile time. The L<nbd_connect_uri(3)> and L<nbd_aio_connect_uri(3)> calls will raise an error (with L<nbd_get_errno(3)> returning C<ENOTSUP>) if it was not built with this feature, and you can also test for it explicitly using L<nbd_supports_uri(3)>. =head2 Connecting to a subprocess Some NBD servers — notably L<nbdkit(1)> with the I<-s> parameter, and L<nbd-server(1)> with the port parameter set to 0 — can also accept a single NBD connection on stdin/stdout. You can run these servers as a subprocess of your main program using L<nbd_connect_command(3)>. This example creates a 1G writable RAM disk: char *argv[] = { "nbdkit", "-s", "--exit-with-parent", "memory", "1G", NULL }; nbd_connect_command (nbd, argv); When the handle is closed the nbdkit subprocess is killed, which in this case means the RAM disk is discarded, so this is useful for testing. =head2 Connecting to a subprocess using systemd socket activation Some NBD servers — notably L<nbdkit(1)> and L<qemu-nbd(1)> — support systemd socket activation allowing libnbd to pass a socket to the subprocess. This works very similarly to L<nbd_connect_command(3)> described above, but you must use L<nbd_connect_systemd_socket_activation(3)> instead. =head1 EXPORTS AND FLAGS It is possible for NBD servers to serve different content on different “exportsâ€. For this you must pass the right export name to the server. Call this API before connecting: nbd_set_export_name (nbd, "export"); Note that there are some servers (like L<nbdkit(1)> E<le> 1.14) which ignore this, and other servers (like L<qemu-nbd(8)>) which require it to be set correctly but cannot serve different content. =head2 Flag calls After connecting the server will send back a set of flags describing the export, such as whether it is writable and if it can support flush to permanent storage. These flags can be accessed from libnbd using APIs such as: int is_read_only = nbd_is_read_only (nbd); int can_flush = nbd_can_flush (nbd); Flag calls are: __API_FLAG_LINKS__ =head2 Size of the export To get the size of the export in bytes, use L<nbd_get_size(3)>: int64_t size = nbd_get_size (nbd); =head1 DATA COMMANDS You can read and write data from the NBD server using L<nbd_pread(3)> and L<nbd_pwrite(3)> or their asynchronous equivalents. Some servers also support: =over 4 =item trim/discard If L<nbd_can_trim(3)> returns true, L<nbd_trim(3)> can be used to “punch holes†in the backing storage of the disk on the server. Normally (although not in every case) the holes read back as zeroes but take up no space. =item zeroing If L<nbd_can_zero(3)> returns true, L<nbd_zero(3)> can be used to efficiently zero parts of the disk without having to send large amounts of zero bytes over the network (as would be necessary if using L<nbd_pwrite(3)>). This is slightly different from trimming because the backing storage is still allocated. For some storage types this can make future writes more efficient and/or less likely to fail because of out of space errors. =item flushing Some servers can commit data to permanent storage and tell you that this has happened reliably. There are two export flags associated with this: L<nbd_can_flush(3)> and L<nbd_can_fua(3)>. The L<nbd_flush(3)> call (available if L<nbd_can_flush(3)> returns true) flushes all pending writes to disk and does not complete until that operation has finished. It is similar to using L<sync(2)> on POSIX systems. A more efficient way to achieve this is to set the flag C<LIBNBD_CMD_FLAG_FUA> on write-like calls (like write, trim and zero). This flag means the call will not complete until committed to permanent storage, but it does not involve flushing the entire disk. =item prefetching Some servers can prefetch data, making subsequent reads faster. The L<nbd_cache(3)> call (available if L<nbd_can_cache(3)> returns true) is used to prefetch. =item block status Some servers are able to provide information about the various extents within the image, via the notion of one or more meta contexts. The most common meta context is "base:allocation" (available in libnbd.h as C<LIBNBD_CONTEXT_BASE_ALLOCATION>), which can be used to learn which portions of a file are allocated or read as zero. Other contexts may be available; for example, L<qemu-nbd(8)> can expose a meta context "qemu:dirty-bitmap:NAME" for tracking which portions of a file are tracked by a qcow2 dirty bitmap. In order to utilize block status, the client must call L<nbd_add_meta_context(3)> prior to connecting, for each meta context in which it is interested, then check L<nbd_can_meta_context(3)> after connection to see which contexts the server actually supports. If a context is supported, the client can then use L<nbd_block_status(3)> with a callback function that will receive an array of 32-bit integer pairs describing consecutive extents within a context. In each pair, the first integer is the length of the extent, the second is a bitmask description of that extent (for the "base:allocation" context, the bitmask may include C<LIBNBD_STATE_HOLE> for unallocated portions of the file, and/or C<LIBNBD_STATE_ZERO> for portions of the file known to read as zero). There is a full example of requesting meta context and using block status available at L<https://github.com/libguestfs/libnbd/blob/master/interop/dirty-bitmap.c> =back =head1 PERFORMANCE =head2 Issuing multiple in-flight requests NBD servers which properly implement the specification can handle multiple requests in flight over the same connection at the same time. Libnbd supports this when using the low level API. To use it you simply issue more requests as needed (eg. using calls like L<nbd_aio_pread(3)>, L<nbd_aio_pwrite(3)>) without waiting for previous commands to complete. You need to be careful that requests in flight do not overlap with disk offsets of other write-like commands in flight — an overlapping read may see indeterminate data, and an overlapping write may even cause disk corruption where the resulting disk contents do not match either of the two writes. Each request is identified by a unique 64 bit cookie (assigned by libnbd), allowing libnbd and callers to match replies to requests. Replies may arrive out of order. Although in theory you can have an indefinite number of requests in flight at the same time, in practice it's a good idea to limit them to some number. Libnbd will queue commands in the handle even if it cannot write them to the server, so this limit is largely to prevent a backlog of commands from consuming too much memory. It is suggested to start with a limit of 64 requests in flight (per NBD connection), and measure how adjusting the limit up and down affects performance for your local configuration. There is a full example using multiple in-flight requests available at L<https://github.com/libguestfs/libnbd/blob/master/examples/threaded-reads-and-writes.c> =head2 Multi-conn Some NBD servers advertise “multi-conn†which means that it is safe to make multiple connections to the server and load-balance commands across all of the connections. To do this you should open a single connection first and test for this feature using L<nbd_can_multi_conn(3)>. Without error handling it would look like this: struct nbd_handle *nbd[4]; size_t i; bool supports_multi_conn; nbd[0] = nbd_create (); nbd_connect_tcp (nbd[0], "server", "10809"); supports_multi_conn = nbd_can_multi_conn (nbd[0]) > 0; If multi-conn is supported then you can open further connections: if (supports_multi_conn) { for (i = 1; i <= 3; ++i) { nbd[i] = nbd_create (); nbd_connect_tcp (nbd[i], "server", "10809"); } } If you are issuing multiple in-flight requests (see above) and limiting the number, then the limit should be applied to each individual NBD connection. =head1 ENCRYPTION AND AUTHENTICATION The NBD protocol and libnbd supports TLS (sometimes incorrectly called “SSLâ€) for encryption of the data stream and authentication of clients and servers. Libnbd defaults to TLS I<disabled> for maximum interoperability. To enable it on a handle you must call L<nbd_set_tls(3)> before connecting. To allow TLS, but fall back to unencrypted: nbd_set_tls (nbd, LIBNBD_TLS_ALLOW); Use L<nbd_get_tls_negotiated(3)> to find out if TLS negotiation was successful. Avoid C<LIBNBD_TLS_ALLOW> if man-in-the-middle attacks are a concern. The most secure mode is to require TLS and fail to connect if the server does not support it: nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE); It may also be necessary to verify that the server’s identity is correct. For some servers it may be necessary to verify to the server that the client is permitted to connect. This can be done using either X.509 certificates, or TLS Pre-Shared Keys (PSK). Certificates are more secure. PSK is far more convenient, but you must have an existing secure channel to distribute the keys. =head2 Setting up X.509 using system certificate authorities (CAs) This is the default if you don’t call any other C<nbd_set_tls_*> functions. In this case the server must have a public (eg. HTTPS) certificate which can be verified against the CAs registered on your system (eg. under F</etc/pki>). To disable server name verification — which opens you up to a potential Man-In-The-Middle (MITM) attack — use: nbd_set_tls_verify_peer (nbd, false); =head2 Setting up an X.509 certificate authority (CA) You can set up your own CA and register clients and servers with it, issuing client and server certificates which will reliably authenticate your clients and servers to each other. Doing this is described in detail in the L<nbdkit-tls(1)> manual. The only differences for libnbd are: =over 4 =item * Non-root certificates must be placed in C<$HOME/.pki/libnbd/> or C<$HOME/.config/pki/libnbd/> =item * Libnbd reads F<client-cert.pem> and F<client-key.pem> (instead of F<server-cert.pem> and F<server-key.pem>). =back Once you have set up the directory containing the certificates, call: nbd_set_tls_certificates (nbd, "/path/to/directory"); =head2 Setting up Pre-Shared Keys (PSK) TLS Pre-Shared Keys are a much more convenient method of setting up TLS, and more appropriate for NBD, but you should have an existing secure method available to distribute the keys. They are therefore ideal if you want to set up an NBD service as an adjunct to an existing secure REST API. Use L<psktool(1)> to create a file of C<username:key> pairs: psktool -u username -p keys.psk and pass this path to libnbd: nbd_set_tls_psk_file (nbd, "keys.psk"); If necessary you may need to set the client username (otherwise libnbd will use your login name): nbd_set_tls_username (nbd, "username"); =head1 CALLBACKS Some libnbd calls take callbacks (eg. L<nbd_set_debug_callback(3)>, L<nbd_aio_pread(3)>). Libnbd can call these functions while processing. In the C API these libnbd calls take a structure which contains the function pointer and an optional opaque C<void *user_data> pointer: nbd_aio_pread (nbd, buf, sizeof buf, offset, (nbd_completion_callback) { .callback = my_fn, .user_data = my_data }, 0); For optional callbacks, if you don't want the callback, either set C<.callback> to C<NULL> or use the equivalent macros (such as C<NBD_NULL_COMPLETION>) defined in C<libnbd.h>: nbd_aio_pread (nbd, buf, sizeof buf, offset, NBD_NULL_COMPLETION, 0); From other languages the structure and opaque pointer are not needed because you can use closures to achieve the same effect. =head2 Callback lifetimes You can associate an optional free function with callbacks. Libnbd will call this function when the callback will not be called again by libnbd. This can be used to free associated C<user_data>. For example: void *my_data = malloc (...); nbd_aio_pread_structured (nbd, buf, sizeof buf, offset, (nbd_chunk_callback) { .callback = my_fn, .user_data = my_data, .free = free }, NBD_NULL_CALLBACK(completion), 0); will call L<free(3)> on C<my_data> after the last time that the S<C<chunk.callback = my_fn>> function is called. The free function is only accessible in the C API as it is not needed in garbage collected programming languages. =head2 Callbacks with C<.callback=NULL> and C<.free!=NULL> It is possible to register a callback like this: ... (nbd_completion_callback) { .callback = NULL, .user_data = my_data, .free = free }, ... The meaning of this is that the callback is never called, but the free function is still called after the last time the callback would have been called. This is useful for applying generic freeing actions when asynchronous commands are retired. =head2 Callbacks and locking The callbacks are invoked at a point where the libnbd lock is held; as such, it is unsafe for the callback to call any C<nbd_*> APIs on the same nbd object, as it would cause deadlock. =head2 Completion callbacks All of the low-level commands have a completion callback variant that registers a callback function used right before the command is marked complete. When the completion callback returns C<1>, the command is automatically retired (there is no need to call L<nbd_aio_command_completed(3)>); for any other return value, the command still needs to be retired. =head2 Callbacks with C<int *error> parameter Some of the high-level commands (L<nbd_pread_structured(3)>, L<nbd_block_status(3)>) involve the use of a callback function invoked by the state machine at appropriate points in the server's reply before the overall command is complete. These callback functions, along with all of the completion callbacks, include a parameter C<error> containing the value of any error detected so far; if the callback function fails, it should assign back into C<error> and return C<-1> to change the resulting error of the overall command. Assignments into C<error> are ignored for any other return value; similarly, assigning C<0> into C<error> does not have an effect. =head1 ENVIRONMENT VARIABLES =over 4 =item C<HOME> Used in some situations to find TLS certificates. See L<nbd_set_tls_certificates(3)>. =item C<LIBNBD_DEBUG> If this is set to the exact string C<1> when the handle is created then debugging is enabled. See L</DEBUGGING MESSAGES> above. =item C<LOGNAME> The default TLS username. See L<nbd_set_tls_username(3)>. =back =head1 SEE ALSO =head2 C API __API_LINKS__ =head2 Servers L<nbdkit(1)>, L<nbd-server(1)>, L<qemu-nbd(8)>. =head2 Encryption tools L<certtool(1)>, L<nbdkit-tls(1)>, L<psktool(1)>. =head2 Standards L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md>, L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/uri.md>. =head2 Other L<libnbd-release-notes-1.2(1)>, L<libnbd-security(3)>, L<nbdfuse(1)>, L<nbdsh(1)>, L<qemu(1)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/libnbd-release-notes-1.2.pod������������������������������������������������������0000664�0001750�0001750�00000010105�13563236621�015625� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME libnbd-release-notes-1.2 - release notes for libnbd 1.2 =head1 DESCRIPTION These are the release notes for libnbd stable release 1.2. This describes the major changes since 1.0. libnbd 1.2.0 was released on 14th November 2019. =head2 Security Two security problems were found during development of libnbd 1.2. Both were backported to the 1.0 stable branch. Upgrading is highly advisable. =head3 CVE-2019-14842 protocol downgrade attack when using C<LIBNBD_TLS_REQUIRE> See the full announcement and links to mitigation, tests and fixes here: L<https://www.redhat.com/archives/libguestfs/2019-September/msg00128.html> =head3 remote code execution vulnerability See the full announcement here: L<https://www.redhat.com/archives/libguestfs/2019-October/msg00060.html> =head2 New APIs =over 4 =item L<nbd_can_fast_zero(3)> Test support by the server for fast zeroing (Eric Blake). =item L<nbd_connect_socket(3)> =item L<nbd_aio_connect_socket(3)> Connect to a local connected socket which you create in your main program using your own chosen method. =item L<nbd_connect_systemd_socket_activation(3)> =item L<nbd_aio_connect_systemd_socket_activation(3)> Connect to local processes that support systemd socket activation. =item L<nbd_connect_vsock(3)> =item L<nbd_aio_connect_vsock(3)> Used to connect to servers over C<AF_VSOCK>. =item L<nbd_get_handshake_flags(3)> =item L<nbd_set_handshake_flags(3)> =item L<nbd_get_request_structured_replies(3)> =item L<nbd_set_request_structured_replies(3)> =item L<nbd_get_structured_replies_negotiated(3)> Can be used when testing NBD servers to avoid various NBD features (Eric Blake). =item L<nbd_get_protocol(3)> Get the NBD protocol variant that the server supports. =item L<nbd_get_tls_negotiated(3)> Did we actually negotiate a TLS connection? =item L<nbd_set_uri_allow_local_file(3)> =item L<nbd_set_uri_allow_tls(3)> =item L<nbd_set_uri_allow_transports(3)> These can be used to filter NBD URIs before calling L<nbd_connect_uri(3)>. =back =head2 New features New tool L<nbdfuse(1)> lets you create a loop-mounted file backed by an NBD server without needing root. C<AF_VSOCK> is now a supported protocol (thanks Stefan Hajnoczi and Stefano Garzarella). Support for the C<FAST_ZERO> flag (Eric Blake). Allow disabling certain protocol features, to make it easier to test servers (Eric Blake). Stack-allocated Variable Length Arrays (VLAs) are now banned throughout the library, making the library easier to consume from threads and other small stack situations. Reproducible builds (Chris Lamb). Support for filtering potentially dangerous or undesirable NBD URI features. =head2 Documentation Many improvements to the generated manual pages, including: =over 4 =item * Separate C<RETURN VALUE> and C<ERRORS> sections for each API function. =item * Example code. =item * Relevant links can be added to the C<SEE ALSO> section. =item * Link to NBD URI specification where relevant, and improve documentation around what URIs libnbd supports. =item * Document libnbd version number scheme. =item * Document limits on export name length, encoding etc. =back New L<libnbd-security(3)> man page listing past security issues and remediations (Eric Blake). =head2 Tools L<nbdsh(1)> has a new I<--base-allocation> option which can be used to request C<base:allocation> metadata context. New L<nbdsh(1)> I<--uri> (I<-u>) option to connect to URIs. =head2 Tests You can now fuzz libnbd using either American Fuzzy Lop or clang’s libFuzzer. Add unit tests for L<nbdsh(1)> (Eric Blake). Improved interop testing with various NBD servers and features. =head2 Other improvements and bug fixes L<nbd_connect_tcp(3)> now tries to return the correct L<errno(3)> from the underlying L<connect(2)> call when that fails. The F<nbd-protocol.h> header file is now shared between libnbd and nbdkit. Better fork-safety in C<nbd_connect_*> APIs. The code was analyzed with Coverity and various problems identified and fixed. =head1 SEE ALSO L<libnbd(1)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/libnbd-security.pod���������������������������������������������������������������0000664�0001750�0001750�00000001532�13562557674�014451� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME libnbd-security - information about past security issues in libnbd =head1 DESCRIPTION This page details past security issues found in libnbd. For how to report new security issues, see the C<SECURITY> file in the top level source directory, also available online here: L<https://github.com/libguestfs/libnbd/blob/master/SECURITY> =head2 CVE-2019-14842 protocol downgrade attack when using C<LIBNBD_TLS_REQUIRE> See the full announcement and links to mitigation, tests and fixes here: L<https://www.redhat.com/archives/libguestfs/2019-September/msg00128.html> =head2 remote code execution vulnerability See the full announcement here: L<https://www.redhat.com/archives/libguestfs/2019-October/msg00060.html> =head1 SEE ALSO L<libnbd(1)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_create.pod��������������������������������������������������������������������0000664�0001750�0001750�00000004672�13546661321�013433� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbd_create, nbd_close, nbd_get_error, nbd_get_errno - create libnbd handles and fetch errors =head1 SYNOPSIS #include <libnbd.h> struct nbd_handle *nbd; struct nbd_handle *nbd_create (void); void nbd_close (struct nbd_handle *nbd); const char *nbd_get_error (void); int nbd_get_errno (void); =head1 EXAMPLE #include <libnbd.h> main () { struct nbd_handle *nbd; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); nbd_close (nbd); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } cc prog.c -o prog -lnbd or: cc prog.c -o prog `pkg-config libnbd --cflags --libs` =head1 DESCRIPTION =head2 Create and close handles B<struct nbd_handle> is an opaque structure which describes an NBD client handle and the connection to an NBD server. B<nbd_create> creates a new handle. It returns a pointer to the opaque handle structure. On error this returns C<NULL>. See L<libnbd(3)/ERROR HANDLING> for how to get further details of the error. B<nbd_close> closes the handle and frees any associated resources. The final status of any command that has not been retired (whether by L<nbd_aio_command_completed(3)> or by a low-level completion callback returning C<1>) is lost. This function is not safe to call while any other thread is still using any C<nbd_*> API on the same handle. This function can block in the case where we wait for a subprocess (eg. one created with L<nbd_connect_command(3)>). =head2 Getting the latest error message in the thread See L<libnbd(3)/ERROR HANDLING> for more discussion of how error handling works in libnbd. B<nbd_get_error> returns the most recent error message in the current thread. The error message is only valid if called immediately after the failing call, from the same thread. The error string returned will be freed up next time any libnbd API is called from the same thread, so if you need to keep it you must make a copy. This should never return C<NULL> provided there was an error returned from the immediately preceding libnbd call in the current thread. B<nbd_get_errno> returns the most recent C<errno> in the current thread. Not all errors have corresponding errnos, so even if there has been an error this may return C<0>. Error codes are the standard ones from C<E<lt>errno.hE<gt>>. =head1 SEE ALSO L<libnbd(3)>. =head1 AUTHORS Eric Blake Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������libnbd-1.2.2/docs/nbd_close.3�����������������������������������������������������������������������0000664�0001750�0001750�00000000026�13524776043�012646� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������.so man3/nbd_create.3 ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_error.3�������������������������������������������������������������������0000664�0001750�0001750�00000000026�13524776043�013531� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������.so man3/nbd_create.3 ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/docs/nbd_get_errno.3�������������������������������������������������������������������0000664�0001750�0001750�00000000026�13524776043�013525� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������.so man3/nbd_create.3 ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�011605� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/Makefile.am�������������������������������������������������������������������0000664�0001750�0001750�00000010305�13546661321�013551� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk EXTRA_DIST = LICENSE-FOR-EXAMPLES noinst_PROGRAMS = \ aio-connect-read \ batched-read-write \ connect-command \ encryption \ fetch-first-sector \ get-size \ open-qcow2 \ reads-and-writes \ server-flags \ strict-structured-reads \ threaded-reads-and-writes \ $(NULL) if HAVE_GLIB noinst_PROGRAMS += \ glib-main-loop endif aio_connect_read_SOURCES = \ aio-connect-read.c \ $(NULL) aio_connect_read_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) aio_connect_read_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) aio_connect_read_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) connect_command_SOURCES = \ connect-command.c \ $(NULL) connect_command_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) connect_command_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) connect_command_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) encryption_SOURCES = \ encryption.c \ $(NULL) encryption_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) encryption_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) encryption_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) fetch_first_sector_SOURCES = \ fetch-first-sector.c \ $(NULL) fetch_first_sector_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) fetch_first_sector_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) fetch_first_sector_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) get_size_SOURCES = \ get-size.c \ $(NULL) get_size_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) get_size_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) get_size_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) open_qcow2_SOURCES = \ open-qcow2.c \ $(NULL) open_qcow2_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) open_qcow2_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) open_qcow2_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) reads_and_writes_SOURCES = \ reads-and-writes.c \ $(NULL) reads_and_writes_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) reads_and_writes_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) reads_and_writes_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) server_flags_SOURCES = \ server-flags.c \ $(NULL) server_flags_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) server_flags_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) server_flags_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) strict_structured_reads_SOURCES = \ strict-structured-reads.c \ $(NULL) strict_structured_reads_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) strict_structured_reads_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) strict_structured_reads_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) threaded_reads_and_writes_SOURCES = \ threaded-reads-and-writes.c \ $(NULL) threaded_reads_and_writes_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) threaded_reads_and_writes_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(PTHREAD_CFLAGS) \ $(NULL) threaded_reads_and_writes_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(PTHREAD_LIBS) \ $(NULL) batched_read_write_SOURCES = \ batched-read-write.c \ $(NULL) batched_read_write_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) batched_read_write_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(NULL) batched_read_write_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(NULL) if HAVE_GLIB glib_main_loop_SOURCES = \ glib-main-loop.c \ $(NULL) glib_main_loop_CPPFLAGS = \ -I$(top_srcdir)/include \ $(NULL) glib_main_loop_CFLAGS = \ $(WARNINGS_CFLAGS) \ $(GLIB_CFLAGS) \ $(NULL) glib_main_loop_LDADD = \ $(top_builddir)/lib/libnbd.la \ $(GLIB_LIBS) \ $(NULL) endif ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/Makefile.in�������������������������������������������������������������������0000664�0001750�0001750�00000177501�13616543374�013603� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# Makefile.in generated by automake 1.16.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2018 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # subdir-rules.mk is included only in subdirectories. # common-rules.mk is included in every Makefile.am. # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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html \ html-am info info-am install install-am install-data \ install-data-am install-dvi install-dvi-am install-exec \ install-exec-am install-html install-html-am install-info \ install-info-am install-man install-pdf install-pdf-am \ install-ps install-ps-am install-strip installcheck \ installcheck-am installdirs maintainer-clean \ maintainer-clean-generic mostlyclean mostlyclean-compile \ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ tags tags-am uninstall uninstall-am .PRECIOUS: Makefile $(generator_built): $(top_builddir)/generator/stamp-generator $(top_builddir)/generator/stamp-generator: \ $(top_srcdir)/generator/generator \ $(wildcard $(top_srcdir)/generator/states*.c) $(MAKE) -C $(top_builddir)/generator stamp-generator %.cmi: %.mli $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ %.cmo: %.ml $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ @HAVE_OCAMLOPT_TRUE@%.cmx: %.ml @HAVE_OCAMLOPT_TRUE@ $(OCAMLFIND) ocamlopt $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ $(top_builddir)/podwrapper.pl: $(top_srcdir)/podwrapper.pl.in $(MAKE) -C $(top_builddir) podwrapper.pl # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/aio-connect-read.c������������������������������������������������������������0000664�0001750�0001750�00000006140�13532312435�014765� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* This example shows how to use the AIO (asynchronous) low * level API to connect to a server and read the disk. * * Here are a few ways to try this example: * * nbdkit -U - linuxdisk . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - floppy . \ * --run './aio-connect-read $unixsocket' * * nbdkit -U - pattern size=1M \ * --run './aio-connect-read $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <assert.h> #include <libnbd.h> #define NR_SECTORS 32 #define SECTOR_SIZE 512 struct data { uint64_t offset; char sector[SECTOR_SIZE]; }; static int hexdump (void *user_data, int *error) { struct data *data = user_data; FILE *pp; printf ("sector at offset 0x%" PRIx64 ":\n", data->offset); pp = popen ("hexdump -C", "w"); if (pp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (data->sector, SECTOR_SIZE, 1, pp); pclose (pp); printf ("\n"); /* Returning 1 from the callback automatically retires * the command. */ return 1; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; struct data data[NR_SECTORS]; size_t i; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a Unix domain socket. * This only starts the connection. */ if (nbd_aio_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Wait for the connection to complete. The use of * nbd_poll here is only as an example. You could also * integrate this with poll(2), glib or another main * loop. Read libnbd(3) and the source file lib/poll.c. */ while (!nbd_aio_is_ready (nbd)) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } assert (nbd_get_size (nbd) >= NR_SECTORS * SECTOR_SIZE); /* Issue read commands for the first NR sectors. */ for (i = 0; i < NR_SECTORS; ++i) { data[i].offset = i * SECTOR_SIZE; /* The callback (hexdump) is called when the command * completes. The buffer must continue to exist while * the command is running. */ if (nbd_aio_pread (nbd, data[i].sector, SECTOR_SIZE, data[i].offset, (nbd_completion_callback) { .callback = hexdump, .user_data = &data[i], }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Run the main loop until all the commands have * completed and retired. Again the use of nbd_poll * here is only as an example. */ while (nbd_aio_in_flight (nbd) > 0) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/batched-read-write.c����������������������������������������������������������0000664�0001750�0001750�00000012613�13524777766�015341� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* Example usage with nbdkit: * * nbdkit -U - --filter=noparallel memory 2M \ * --run './batched-read-write $unixsocket' * * This will attempt to batch a large aio read request immediately * followed by a large aio write request, prior to waiting for any * command replies from the server. A naive client that does not check * for available read data related to the first command while trying * to write data for the second command, coupled with a server that * only processes commands serially, would cause deadlock (both * processes fill up their write buffers waiting for a reader); thus, * this tests that libnbd is smart enough to always respond to replies * for in-flight requests even when it has batched up other commands * to write. * * To run it against a remote server over TCP: * * ./batched-read-write hostname port * or * ./batched-read-write nbd://hostname:port */ #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <string.h> #include <unistd.h> #include <errno.h> #include <poll.h> #include <time.h> #include <assert.h> #include <signal.h> #include <libnbd.h> /* The single NBD handle. */ static struct nbd_handle *nbd; /* Buffers used for the test. */ static char *in, *out; static int64_t packetsize; static int try_deadlock (void *arg) { struct pollfd fds[1]; size_t i; int64_t cookies[2], done; unsigned dir; int r; /* Issue commands. */ cookies[0] = nbd_aio_pread (nbd, in, packetsize, 0, NBD_NULL_COMPLETION, 0); if (cookies[0] == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } cookies[1] = nbd_aio_pwrite (nbd, out, packetsize, packetsize, NBD_NULL_COMPLETION, 0); if (cookies[1] == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } /* Now wait for commands to retire, or for deadlock to occur */ while (nbd_aio_in_flight (nbd) > 0) { if (nbd_aio_is_dead (nbd) || nbd_aio_is_closed (nbd)) { fprintf (stderr, "connection is dead or closed\n"); goto error; } fds[0].fd = nbd_aio_get_fd (nbd); fds[0].events = 0; fds[0].revents = 0; dir = nbd_aio_get_direction (nbd); if ((dir & LIBNBD_AIO_DIRECTION_READ) != 0) fds[0].events |= POLLIN; if ((dir & LIBNBD_AIO_DIRECTION_WRITE) != 0) fds[0].events |= POLLOUT; if (poll (fds, 1, -1) == -1) { perror ("poll"); goto error; } if ((dir & LIBNBD_AIO_DIRECTION_READ) != 0 && (fds[0].revents & POLLIN) != 0) nbd_aio_notify_read (nbd); else if ((dir & LIBNBD_AIO_DIRECTION_WRITE) != 0 && (fds[0].revents & POLLOUT) != 0) nbd_aio_notify_write (nbd); /* If a command is ready to retire, retire it. */ while ((done = nbd_aio_peek_command_completed (nbd)) > 0) { for (i = 0; i < sizeof cookies / sizeof cookies[0]; ++i) { if (cookies[i] == done) { r = nbd_aio_command_completed (nbd, cookies[i]); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } assert (r == 1); cookies[i] = 0; } } } } assert (nbd_aio_in_flight (nbd) == 0); printf ("finished OK\n"); return 0; error: fprintf (stderr, "failed\n"); return -1; } static void alarm_handler (int sig) { fprintf (stderr, "alarm fired; deadlock probably occurred\n"); exit (EXIT_FAILURE); } int main (int argc, char *argv[]) { int64_t exportsize; if (argc < 2 || argc > 3) { fprintf (stderr, "%s uri | socket | hostname port\n", argv[0]); exit (EXIT_FAILURE); } nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect synchronously as this is simpler. */ if (argc == 2) { if (strstr (argv[1], "://")) { if (nbd_connect_uri (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } else if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } else { if (nbd_connect_tcp (nbd, argv[1], argv[2]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } if (nbd_is_read_only (nbd) == 1) { fprintf (stderr, "%s: error: this NBD export is read-only\n", argv[0]); exit (EXIT_FAILURE); } exportsize = nbd_get_size (nbd); if (exportsize == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } packetsize = exportsize / 2; if (packetsize > 2 * 1024 * 1024) packetsize = 2 * 1024 * 1024; in = malloc (packetsize); out = malloc (packetsize); if (!in || !out) { fprintf (stderr, "insufficient memory\n"); exit (EXIT_FAILURE); } /* Attempt to be non-destructive, by writing what file already contains */ if (nbd_pread (nbd, out, packetsize, packetsize, 0) == -1) { fprintf (stderr, "sync read failed: %s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* When not debugging, set an alarm, in case this test deadlocks * instead of succeeding */ if (nbd_get_debug (nbd) < 1) { signal (SIGALRM, alarm_handler); alarm (10); } if (try_deadlock (NULL) == -1) exit (EXIT_FAILURE); if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); return EXIT_SUCCESS; } ���������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/connect-command.c�������������������������������������������������������������0000664�0001750�0001750�00000003504�13532300053�014714� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* This example shows how to run an NBD server * (nbdkit) as a subprocess of libnbd. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; char wbuf[512], rbuf[512]; size_t i; /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Run nbdkit as a subprocess. */ char *args[] = { "nbdkit", /* You must use ‘-s’ (which tells nbdkit to serve * a single connection on stdin/stdout). */ "-s", /* It is recommended to use ‘--exit-with-parent’ * to ensure nbdkit is always cleaned up even * if the main program crashes. */ "--exit-with-parent", /* Use this to enable nbdkit debugging. */ "-v", /* The nbdkit plugin name - this is a RAM disk. */ "memory", "size=1M", /* Use NULL to terminate the arg list. */ NULL }; if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Write some random data to the first sector. */ for (i = 0; i < sizeof wbuf; ++i) wbuf[i] = i % 13; if (nbd_pwrite (nbd, wbuf, sizeof wbuf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector back. */ if (nbd_pread (nbd, rbuf, sizeof rbuf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Close the libnbd handle. */ nbd_close (nbd); /* What was read must be exactly the same as what * was written. */ if (memcmp (rbuf, wbuf, sizeof rbuf) != 0) { fprintf (stderr, "FAILED: " "read data did not match written data\n"); exit (EXIT_FAILURE); } exit (EXIT_SUCCESS); } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/encryption.c������������������������������������������������������������������0000664�0001750�0001750�00000005370�13532303524�014052� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* An example showing how to connect to a server which is * using TLS encryption. * * This requires nbdkit, and psktool from gnutls. * * Both libnbd and nbdkit support TLS-PSK which is a * simpler-to-deploy form of encryption. (Of course * certificate-based encryption is also supported, but * it’s harder to make a self-contained example). */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <libnbd.h> #define TMPDIR "/tmp/XXXXXX" #define KEYS "keys.psk" #define USERNAME "alice" static char dir[] = TMPDIR; static char keys[] = TMPDIR "/" KEYS; static char cmd[] = "psktool -u " USERNAME " -p " TMPDIR "/" KEYS; /* Remove the temporary keys file when the program * exits. */ static void cleanup_keys (void) { unlink (keys); rmdir (dir); } /* Create the temporary keys file to share with the * server. */ static void create_keys (void) { size_t i; if (mkdtemp (dir) == NULL) { perror ("mkdtemp"); exit (EXIT_FAILURE); } i = strlen (cmd) - strlen (TMPDIR) - strlen (KEYS) - 1; memcpy (&cmd[i], dir, strlen (TMPDIR)); memcpy (keys, dir, strlen (TMPDIR)); if (system (cmd) != 0) { fprintf (stderr, "psktool command failed\n"); exit (EXIT_FAILURE); } atexit (cleanup_keys); } int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; create_keys (); /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Enable TLS in the client. */ if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Enable TLS-PSK and pass the keys filename. */ if (nbd_set_tls_psk_file (nbd, keys) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Set the local username for authentication. */ if (nbd_set_tls_username (nbd, USERNAME) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Run nbdkit as a subprocess, enabling and requiring * TLS-PSK encryption. */ char *args[] = { "nbdkit", "-s", "--exit-with-parent", "--tls", "require", "--tls-psk", keys, "pattern", "size=1M", NULL }; if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector. */ if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* TLS connections must be shut down. */ if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/fetch-first-sector.c����������������������������������������������������������0000664�0001750�0001750�00000002644�13532147522�015400� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* This example shows how to connect to an NBD server * and fetch and print the first sector (usually the * boot sector or partition table or filesystem * superblock). * * You can test it with nbdkit like this: * * nbdkit -U - floppy . \ * --run './fetch-first-sector $unixsocket' * * The nbdkit floppy plugin creates an MBR disk so the * first sector is the partition table. */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; FILE *pp; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector synchronously. */ if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Close the libnbd handle. */ nbd_close (nbd); /* Print the first sector. */ pp = popen ("hexdump -C", "w"); if (pp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (buf, sizeof buf, 1, pp); pclose (pp); exit (EXIT_SUCCESS); } ��������������������������������������������������������������������������������������������libnbd-1.2.2/examples/get-size.c��������������������������������������������������������������������0000664�0001750�0001750�00000002177�13532155774�013425� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* This example shows how to connect to an NBD * server and read the size of the disk. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './get-size $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int64_t size; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the size in bytes and print it. */ size = nbd_get_size (nbd); if (size == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } printf ("%s: size = %" PRIi64 " bytes\n", argv[1], size); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/glib-main-loop.c��������������������������������������������������������������0000664�0001750�0001750�00000030646�13525010563�014472� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* This example shows you how to make libnbd interoperate with the * glib main loop. For more information about glib main loop see: * * https://developer.gnome.org/glib/stable/glib-The-Main-Event-Loop.html * * To run it, simply do: * * ./examples/glib-main-loop * * For debugging, do: * * LIBNBD_DEBUG=1 ./examples/glib-main-loop */ #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <inttypes.h> #include <assert.h> #include <libnbd.h> #include <glib.h> struct NBDSource; typedef void (*connecting_callback_t) (struct NBDSource *); typedef void (*connected_callback_t) (struct NBDSource *); /* This is the derived GSource type. */ struct NBDSource { /* The base type. This MUST be the first element in this struct. */ GSource source; /* The underlying libnbd handle. */ struct nbd_handle *nbd; bool debug; /* true if handle has debug set */ /* The poll file descriptor. We store the value here as well as in * the GSource so we can see if it changes. */ int fd; gpointer tag; /* You can optionally register callbacks to be called when the * handle changes state: * * connected_callback is called once when the handle moves from * connecting to connected (ready) state. */ connected_callback_t connected_callback; bool called_connected_callback; /* Arbitrary pointer for use by caller. */ gpointer user_data; }; /* Print debug statements when debugging is set for the handle. */ #define DEBUG(source, fs, ...) \ do { \ if ((source)->debug) \ fprintf (stderr, "glib: debug: " fs "\n", ## __VA_ARGS__); \ } while (0) /* These are the GSource functions for libnbd handles. */ static inline int events_from_nbd (struct nbd_handle *nbd) { unsigned dir = nbd_aio_get_direction (nbd); int r = 0; if ((dir & LIBNBD_AIO_DIRECTION_READ) != 0) r |= G_IO_IN; if ((dir & LIBNBD_AIO_DIRECTION_WRITE) != 0) r |= G_IO_OUT; return r; } static gboolean prepare (GSource *sp, gint *timeout_) { struct NBDSource *source = (struct NBDSource *) sp; int new_fd; int events; /* The poll file descriptor can change or become invalid at any * time. */ new_fd = nbd_aio_get_fd (source->nbd); if (source->fd != new_fd) { if (source->tag != NULL) { g_source_remove_unix_fd ((GSource *) source, source->tag); source->fd = -1; source->tag = NULL; } if (new_fd >= 0) { source->fd = new_fd; source->tag = g_source_add_unix_fd ((GSource *) source, new_fd, 0); } } if (!source->tag) return FALSE; events = events_from_nbd (source->nbd); g_source_modify_unix_fd ((GSource *) source, source->tag, events); *timeout_ = -1; DEBUG (source, "prepare: events = 0x%x%s%s", events, events & G_IO_IN ? " G_IO_IN" : "", events & G_IO_OUT ? " G_IO_OUT" : ""); if (source->connected_callback && !source->called_connected_callback && nbd_aio_is_ready (source->nbd)) { DEBUG (source, "calling connected_callback"); source->connected_callback (source); source->called_connected_callback = true; } return FALSE; } static gboolean check (GSource *sp) { struct NBDSource *source = (struct NBDSource *) sp; unsigned dir; int revents; if (!source->tag) return FALSE; revents = g_source_query_unix_fd ((GSource *) source, source->tag); dir = nbd_aio_get_direction (source->nbd); DEBUG (source, "check: direction = 0x%x%s%s, revents = 0x%x%s%s", dir, dir & LIBNBD_AIO_DIRECTION_READ ? " READ" : "", dir & LIBNBD_AIO_DIRECTION_WRITE ? " WRITE" : "", revents, revents & G_IO_IN ? " G_IO_IN" : "", revents & G_IO_OUT ? " G_IO_OUT" : ""); if ((revents & G_IO_IN) != 0 && (dir & LIBNBD_AIO_DIRECTION_READ) != 0) return TRUE; if ((revents & G_IO_OUT) != 0 && (dir & LIBNBD_AIO_DIRECTION_WRITE) != 0) return TRUE; return FALSE; } static gboolean dispatch (GSource *sp, GSourceFunc callback, gpointer user_data) { struct NBDSource *source = (struct NBDSource *) sp; int revents; int r; revents = g_source_query_unix_fd ((GSource *) source, source->tag); DEBUG (source, "dispatch: revents = 0x%x%s%s", revents, revents & G_IO_IN ? " G_IO_IN" : "", revents & G_IO_OUT ? " G_IO_OUT" : ""); r = 0; if ((revents & G_IO_IN) != 0) r = nbd_aio_notify_read (source->nbd); else if ((revents & G_IO_OUT) != 0) r = nbd_aio_notify_write (source->nbd); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); return G_SOURCE_REMOVE; } return G_SOURCE_CONTINUE; } static void finalize (GSource *sp) { struct NBDSource *source = (struct NBDSource *) sp; DEBUG (source, "finalize"); assert (nbd_aio_in_flight (source->nbd) == 0); assert (nbd_aio_peek_command_completed (source->nbd) == -1); nbd_close (source->nbd); } GSourceFuncs nbd_source_funcs = { .prepare = prepare, .check = check, .dispatch = dispatch, .finalize = finalize, }; /* Create a libnbd GSource from a libnbd handle. * * Note that the return value is also a ‘GSource *’, you just have to * cast the return value if you need a GSource pointer. */ static struct NBDSource * create_libnbd_gsource (struct nbd_handle *nbd) { struct NBDSource *source; source = (struct NBDSource *) g_source_new (&nbd_source_funcs, sizeof *source); source->nbd = nbd; source->debug = nbd_get_debug (nbd); source->fd = -1; return source; } /*----------------------------------------------------------------------*/ /* The rest of this file is an example showing how to use the GSource * defined above to control two nbdkit subprocesses, copying from one * to the other in parallel. */ /* Source and destination nbdkit instances. */ static struct NBDSource *gssrc, *gsdest; #define SIZE (1024*1024*1024) static const char *src_args[] = { "nbdkit", "-s", "--exit-with-parent", "-r", "pattern", "size=1G", NULL }; static const char *dest_args[] = { "nbdkit", "-s", "--exit-with-parent", "memory", "size=1G", NULL }; /* The list of buffers waiting to be written. Note that the source * server can answer requests out of order so these buffers may not be * sorted by offset. */ #define MAX_BUFFERS 16 #define BUFFER_SIZE 65536 enum buffer_state { BUFFER_UNUSED = 0, BUFFER_READING, BUFFER_READ_COMPLETED, BUFFER_WRITING, }; struct buffer { uint64_t offset; enum buffer_state state; char *data; }; static struct buffer buffers[MAX_BUFFERS]; static size_t nr_buffers; static bool finished, reader_paused; static GMainLoop *loop; static void connected (struct NBDSource *source); static gboolean read_data (gpointer user_data); static int finished_read (void *vp, int *error); static gboolean write_data (gpointer user_data); static int finished_write (void *vp, int *error); int main (int argc, char *argv[]) { struct nbd_handle *src, *dest; GMainContext *loopctx = NULL; /* Create the main loop. */ loop = g_main_loop_new (loopctx, FALSE); /* Create the two NBD handles and nbdkit instances. */ src = nbd_create (); if (!src) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } dest = nbd_create (); if (!dest) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Create the GSource main loop sources from each handle. */ gssrc = create_libnbd_gsource (src); gsdest = create_libnbd_gsource (dest); loopctx = g_main_loop_get_context (loop); g_source_attach ((GSource *) gssrc, loopctx); g_source_attach ((GSource *) gsdest, loopctx); /* Make sure we get called back when each handle connects. */ gssrc->connected_callback = connected; gsdest->connected_callback = connected; /* Asynchronously start each handle connecting. */ if (nbd_aio_connect_command (src, (char **) src_args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_aio_connect_command (dest, (char **) dest_args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Run the main loop until quit. */ g_main_loop_run (loop); exit (EXIT_SUCCESS); } /* This is called back when either handle becomes connected. By * counting the number of times this happens (there are two handles) * we can tell when both handles have finished connecting. */ static void connected (struct NBDSource *source) { static int count = 0; count++; if (count == 2) { DEBUG (source, "both handles are connected"); /* Now that both handles are connected, we can begin copying. * Register an idle handler that will repeatedly read from the * source. */ g_idle_add (read_data, NULL); } } /* This idle callback reads data from the source nbdkit until the ring * is full. */ static gboolean read_data (gpointer user_data) { static uint64_t posn = 0; size_t i; if (gssrc == NULL) return FALSE; /* Finished reading from the source nbdkit? */ if (posn >= SIZE) { DEBUG (gssrc, "read_data: finished reading from source"); finished = true; return FALSE; } /* Find a free buffer. */ for (i = 0; i < MAX_BUFFERS; ++i) if (buffers[i].state == BUFFER_UNUSED) goto found; /* If too many read requests are in flight, return FALSE so this * idle callback is unregistered. It will be registered by the * write callback when nr_buffers decreases. */ assert (nr_buffers == MAX_BUFFERS); DEBUG (gssrc, "read_data: buffer full, pausing reads from source"); reader_paused = true; return FALSE; found: /* Begin reading into the new buffer. */ assert (buffers[i].data == NULL); buffers[i].data = g_new (char, BUFFER_SIZE); buffers[i].state = BUFFER_READING; buffers[i].offset = posn; nr_buffers++; posn += BUFFER_SIZE; if (nbd_aio_pread (gssrc->nbd, buffers[i].data, BUFFER_SIZE, buffers[i].offset, (nbd_completion_callback) { .callback = finished_read, .user_data = &buffers[i] }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } return TRUE; } /* This callback is called from libnbd when any read command finishes. */ static int finished_read (void *vp, int *error) { struct buffer *buffer = vp; if (gssrc == NULL) return 0; DEBUG (gssrc, "finished_read: read completed"); assert (buffer->state == BUFFER_READING); buffer->state = BUFFER_READ_COMPLETED; /* Create a writer idle handler. */ g_idle_add (write_data, buffer); return 1; } /* This idle callback schedules a write. */ static gboolean write_data (gpointer user_data) { struct buffer *buffer = user_data; if (gsdest == NULL) return FALSE; assert (buffer->state == BUFFER_READ_COMPLETED); buffer->state = BUFFER_WRITING; if (nbd_aio_pwrite (gsdest->nbd, buffer->data, BUFFER_SIZE, buffer->offset, (nbd_completion_callback) { .callback = finished_write, .user_data = buffer }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* We always unregister this idle handler because the read side * creates a new idle handler for every buffer that has to be * written. */ return FALSE; } /* This callback is called from libnbd when any write command finishes. */ static int finished_write (void *vp, int *error) { struct buffer *buffer = vp; if (gsdest == NULL) return 0; DEBUG (gsdest, "finished_write: write completed"); assert (buffer->state == BUFFER_WRITING); g_free (buffer->data); buffer->data = NULL; buffer->state = BUFFER_UNUSED; nr_buffers--; /* If the number of buffers was MAX_BUFFERS and has now gone down to * MAX_BUFFERS-1 then we need to restart the read handler. */ if (nr_buffers == MAX_BUFFERS-1 && reader_paused) { DEBUG (gsdest, "finished_write: restarting reader"); g_idle_add (read_data, NULL); reader_paused = false; } /* If the reader has finished and there are no more buffers then we * have done. */ if (finished && nr_buffers == 0) { DEBUG (gsdest, "finished_write: all finished"); g_source_remove (g_source_get_id ((GSource *) gssrc)); g_source_unref ((GSource *) gssrc); gssrc = NULL; g_source_remove (g_source_get_id ((GSource *) gsdest)); g_source_unref ((GSource *) gsdest); gsdest = NULL; g_main_loop_quit (loop); } return 1; } ������������������������������������������������������������������������������������������libnbd-1.2.2/examples/open-qcow2.c������������������������������������������������������������������0000664�0001750�0001750�00000002453�13546661321�013660� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* This example shows how to use qemu-nbd * to open a local qcow2 file. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <libnbd.h> int main (int argc, char *argv[]) { const char *filename; struct nbd_handle *nbd; char buf[512]; FILE *fp; if (argc != 2) { fprintf (stderr, "open-qcow2 file.qcow2\n"); exit (EXIT_FAILURE); } filename = argv[1]; /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Run qemu-nbd as a subprocess using * systemd socket activation. */ char *args[] = { "qemu-nbd", "-f", "qcow2", (char *) filename, NULL }; if (nbd_connect_systemd_socket_activation (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read the first sector and print it. */ if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } fp = popen ("hexdump -C", "w"); if (fp == NULL) { perror ("popen: hexdump"); exit (EXIT_FAILURE); } fwrite (buf, sizeof buf, 1, fp); pclose (fp); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/reads-and-writes.c������������������������������������������������������������0000664�0001750�0001750�00000004752�13532155300�015031� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* This example shows how to do synchronous reads * and writes randomly over the first megabyte of an * NBD server. Note this will destroy any existing * content on the NBD server. * * To test it with nbdkit and a RAM disk: * * nbdkit -U - memory 1M \ * --run './simple-reads-and-writes $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <inttypes.h> #include <assert.h> #include <time.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; size_t i; int64_t exportsize; uint64_t offset; srand (time (NULL)); if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Get the size of the disk and check * it's large enough. */ exportsize = nbd_get_size (nbd); if (exportsize == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (exportsize >= sizeof buf); /* Check that the server is writable. */ if (nbd_is_read_only (nbd) == 1) { fprintf (stderr, "%s: " "error: this NBD export is read-only\n", argv[0]); exit (EXIT_FAILURE); } for (i = 0; i < sizeof buf; ++i) buf[i] = rand (); /* 1000 writes. */ for (i = 0; i < 1000; ++i) { offset = rand () % (exportsize - sizeof buf); if (nbd_pwrite (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* 1000 reads and writes. */ for (i = 0; i < 1000; ++i) { offset = rand () % (exportsize - sizeof buf); if (nbd_pread (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } offset = rand () % (exportsize - sizeof buf); if (nbd_pwrite (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } /* Sends a graceful shutdown to the server. */ if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } ����������������������libnbd-1.2.2/examples/server-flags.c����������������������������������������������������������������0000664�0001750�0001750�00000003167�13534415604�014267� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* This example shows how to connect to an NBD * server and print the export flags. * * You can test it with nbdkit like this: * * nbdkit -U - memory 1M \ * --run './server-flags $unixsocket' */ #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int flag; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server over a * Unix domain socket. */ if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Read and print the flags. */ #define PRINT_FLAG(flag_fn) \ flag = flag_fn (nbd); \ if (flag == -1) { \ fprintf (stderr, "%s\n", nbd_get_error ()); \ exit (EXIT_FAILURE); \ } \ printf (#flag_fn " = %s\n", \ flag ? "true" : "false"); PRINT_FLAG (nbd_can_cache); PRINT_FLAG (nbd_can_df); PRINT_FLAG (nbd_can_flush); PRINT_FLAG (nbd_can_fua); PRINT_FLAG (nbd_can_multi_conn); PRINT_FLAG (nbd_can_trim); PRINT_FLAG (nbd_can_zero); #if LIBNBD_HAVE_NBD_CAN_FAST_ZERO /* Added in 1.2 */ PRINT_FLAG (nbd_can_fast_zero); #endif PRINT_FLAG (nbd_is_read_only); PRINT_FLAG (nbd_is_rotational); /* Close the libnbd handle. */ nbd_close (nbd); exit (EXIT_SUCCESS); } ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/strict-structured-reads.c�����������������������������������������������������0000664�0001750�0001750�00000015471�13525010563�016471� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* Example usage with qemu-nbd: * * sock=`mktemp -u` * qemu-nbd -f $format -k $sock -r image * ./strict-structured-reads $sock * * This will perform read randomly over the image and check that all * structured replies comply with the NBD spec (chunks may be out of * order or interleaved, but no read succeeds unless chunks cover the * entire region, with no overlapping or zero-length chunks). */ #include <stdio.h> #include <stdlib.h> #include <inttypes.h> #include <time.h> #include <assert.h> #include <errno.h> #include <string.h> #include <libnbd.h> /* A linked list of ranges still not seen. */ struct range { uint64_t first; uint64_t last; struct range *next; }; /* Per-read data. */ struct data { uint64_t offset; size_t count; uint32_t flags; size_t chunks; struct range *remaining; }; #define MAX_BUF (2 * 1024 * 1024) static char buf[MAX_BUF]; /* Various statistics */ static int total_data_chunks; static int64_t total_data_bytes; static int total_hole_chunks; static int64_t total_hole_bytes; static int total_chunks; static int total_df_reads; static int total_reads; static int64_t total_bytes; static int total_success; static int read_chunk (void *opaque, const void *bufv, size_t count, uint64_t offset, unsigned status, int *error) { struct data *data = opaque; struct range *r, **prev; /* libnbd guarantees this: */ assert (offset >= data->offset); assert (offset + count <= data->offset + data->count); switch (status) { case LIBNBD_READ_DATA: total_data_chunks++; total_data_bytes += count; break; case LIBNBD_READ_HOLE: total_hole_chunks++; total_hole_bytes += count; break; case LIBNBD_READ_ERROR: assert (count == 0); count = 1; /* Ensure no further chunks visit that offset */ break; default: goto error; } data->chunks++; if (count == 0) { fprintf (stderr, "buggy server: chunk must have non-zero size\n"); goto error; } /* Find element in remaining, or the server is in error */ for (prev = &data->remaining, r = *prev; r; prev = &r->next, r = r->next) { if (offset >= r->first) break; } if (r == NULL || offset + count > r->last) { /* we fail to detect double errors reported at the same offset, * but at least the read is already going to fail. */ if (status == LIBNBD_READ_ERROR) return 0; fprintf (stderr, "buggy server: chunk with overlapping range\n"); goto error; } /* Resize or split r to track new remaining bytes */ if (offset == r->first) { if (offset + count == r->last) { *prev = r->next; free (r); } else r->first += count; } else if (offset + count == r->last) { r->last -= count; } else { struct range *n = malloc (sizeof *n); assert (n); n->next = r->next; r->next = n; n->last = r->last; r->last = offset - r->first; n->first = offset + count; } return 0; error: *error = EPROTO; return -1; } static int read_verify (void *opaque, int *error) { int ret = 0; struct data *data = opaque; ret = -1; total_reads++; total_chunks += data->chunks; if (*error) goto cleanup; assert (data->chunks > 0); if (data->flags & LIBNBD_CMD_FLAG_DF) { total_df_reads++; if (data->chunks > 1) { fprintf (stderr, "buggy server: too many chunks for DF flag\n"); *error = EPROTO; goto cleanup; } } if (data->remaining && !*error) { fprintf (stderr, "buggy server: not enough chunks on success\n"); *error = EPROTO; goto cleanup; } total_bytes += data->count; total_success++; ret = 0; cleanup: while (data->remaining) { struct range *r = data->remaining; data->remaining = r->next; free (r); } return ret; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; size_t i; int64_t exportsize; int64_t maxsize = MAX_BUF; uint64_t offset; srand (time (NULL)); if (argc != 2) { fprintf (stderr, "%s socket|uri\n", argv[0]); exit (EXIT_FAILURE); } nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (strstr (argv[1], "://")) { if (nbd_connect_uri (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } else if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } exportsize = nbd_get_size (nbd); if (exportsize == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (exportsize < 512) { fprintf (stderr, "image is too small for useful testing\n"); exit (EXIT_FAILURE); } if (exportsize <= maxsize) maxsize = exportsize - 1; /* Queue up 1000 parallel reads. We are reusing the same buffer, * which is not safe in real life, but okay here because we aren't * validating contents, only server behavior. */ for (i = 0; i < 1000; ++i) { uint32_t flags = 0; struct data *d = malloc (sizeof *d); struct range *r = malloc (sizeof *r); assert (d && r); offset = rand () % (exportsize - maxsize); if (rand() & 1) flags = LIBNBD_CMD_FLAG_DF; *r = (struct range) { .first = offset, .last = offset + maxsize, }; *d = (struct data) { .offset = offset, .count = maxsize, .flags = flags, .remaining = r, }; if (nbd_aio_pread_structured (nbd, buf, sizeof buf, offset, (nbd_chunk_callback) { .callback = read_chunk, .user_data = d }, (nbd_completion_callback) { .callback = read_verify, .user_data = d, .free = free }, flags) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } while (nbd_aio_in_flight (nbd) > 0) { int64_t cookie = nbd_aio_peek_command_completed (nbd); if (cookie == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (cookie == 0) { if (nbd_poll (nbd, -1) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } else nbd_aio_command_completed (nbd, cookie); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); printf ("totals:\n"); printf (" data chunks: %10d\n", total_data_chunks); printf (" data bytes: %10" PRId64 "\n", total_data_bytes); printf (" hole chunks: %10d\n", total_hole_chunks); printf (" hole bytes: %10" PRId64 "\n", total_hole_bytes); printf (" all chunks: %10d\n", total_chunks); printf (" df reads: %10d\n", total_df_reads); printf (" reads: %10d\n", total_reads); printf (" bytes read: %10" PRId64 "\n", total_bytes); printf (" compliant: %10d\n", total_success); exit (EXIT_SUCCESS); } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/threaded-reads-and-writes.c���������������������������������������������������0000664�0001750�0001750�00000021346�13524777766�016640� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* Example usage with nbdkit: * * nbdkit -U - memory 100M --run './threaded-reads-and-writes $unixsocket' * * This will read and write randomly over the first megabyte of the * plugin using multi-conn, multiple threads and multiple requests in * flight on each thread. * * To run it against a remote server over TCP: * * ./threaded-reads-and-writes hostname port * or * ./threaded-reads-and-writes nbd://hostname:port */ #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <string.h> #include <unistd.h> #include <errno.h> #include <poll.h> #include <time.h> #include <assert.h> #include <pthread.h> #include <libnbd.h> static int64_t exportsize; /* Number of simultaneous connections to the NBD server. This is also * the number of threads, because each thread manages one connection. * Note that some servers only support a limited number of * simultaneous connections, and/or have a configurable thread pool * internally, and if you exceed those limits then something will * break. */ #define NR_MULTI_CONN 8 /* Number of commands that can be "in flight" at the same time on each * connection. (Therefore the total number of requests in flight may * be up to NR_MULTI_CONN * MAX_IN_FLIGHT). See libnbd(3) section * "Issuing multiple in-flight requests". */ #define MAX_IN_FLIGHT 64 /* The size of large reads and writes, must be > 512. */ #define BUFFER_SIZE (1024*1024) /* Number of commands we issue (per thread). */ #define NR_CYCLES 10000 struct thread_status { size_t i; /* Thread index, 0 .. NR_MULTI_CONN-1 */ int argc; /* Command line parameters. */ char **argv; int status; /* Return status. */ unsigned requests; /* Total number of requests made. */ unsigned most_in_flight; /* Most requests seen in flight. */ }; static void *start_thread (void *arg); int main (int argc, char *argv[]) { struct nbd_handle *nbd; pthread_t threads[NR_MULTI_CONN]; struct thread_status status[NR_MULTI_CONN]; size_t i; int err; unsigned requests, most_in_flight, errors; srand (time (NULL)); if (argc < 2 || argc > 3) { fprintf (stderr, "%s uri | socket | hostname port\n", argv[0]); exit (EXIT_FAILURE); } nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect first to check if the server supports writes and multi-conn. */ if (argc == 2) { if (strstr (argv[1], "://")) { if (nbd_connect_uri (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } else if (nbd_connect_unix (nbd, argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } else { if (nbd_connect_tcp (nbd, argv[1], argv[2]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } exportsize = nbd_get_size (nbd); if (exportsize == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } else if (exportsize <= BUFFER_SIZE) { fprintf (stderr, "export too small, must be larger than %d\n", BUFFER_SIZE); exit (EXIT_FAILURE); } if (nbd_is_read_only (nbd) == 1) { fprintf (stderr, "%s: error: this NBD export is read-only\n", argv[0]); exit (EXIT_FAILURE); } #if NR_MULTI_CONN > 1 if (nbd_can_multi_conn (nbd) == 0) { fprintf (stderr, "%s: error: " "this NBD export does not support multi-conn\n", argv[0]); exit (EXIT_FAILURE); } #endif nbd_close (nbd); /* Start the worker threads, one per connection. */ for (i = 0; i < NR_MULTI_CONN; ++i) { status[i].i = i; status[i].argc = argc; status[i].argv = argv; status[i].status = 0; status[i].requests = 0; status[i].most_in_flight = 0; err = pthread_create (&threads[i], NULL, start_thread, &status[i]); if (err != 0) { errno = err; perror ("pthread_create"); exit (EXIT_FAILURE); } } /* Wait for the threads to exit. */ errors = 0; requests = 0; most_in_flight = 0; for (i = 0; i < NR_MULTI_CONN; ++i) { err = pthread_join (threads[i], NULL); if (err != 0) { errno = err; perror ("pthread_join"); exit (EXIT_FAILURE); } if (status[i].status != 0) { fprintf (stderr, "thread %zu failed with status %d\n", i, status[i].status); errors++; } requests += status[i].requests; if (status[i].most_in_flight > most_in_flight) most_in_flight = status[i].most_in_flight; } /* Make sure the number of requests that were required matches what * we expect. */ assert (requests == NR_MULTI_CONN * NR_CYCLES); printf ("most requests seen in flight = %u (per thread) " "vs MAX_IN_FLIGHT = %d\n", most_in_flight, MAX_IN_FLIGHT); exit (errors == 0 ? EXIT_SUCCESS : EXIT_FAILURE); } static void * start_thread (void *arg) { struct nbd_handle *nbd; struct pollfd fds[1]; struct thread_status *status = arg; char *buf; size_t i, j; uint64_t offset; int64_t cookie; int64_t cookies[MAX_IN_FLIGHT]; size_t in_flight; /* counts number of requests in flight */ unsigned dir; int r, cmd; size_t size; assert (512 < BUFFER_SIZE); buf = malloc (BUFFER_SIZE); if (buf == NULL) { perror ("malloc"); exit (EXIT_FAILURE); } nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (status->argc == 2) { if (strstr (status->argv[1], "://")) { if (nbd_connect_uri (nbd, status->argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } else if (nbd_connect_unix (nbd, status->argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } else { if (nbd_connect_tcp (nbd, status->argv[1], status->argv[2]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } for (i = 0; i < BUFFER_SIZE; ++i) buf[i] = rand (); /* Issue commands. */ in_flight = 0; i = NR_CYCLES; while (i > 0 || in_flight > 0) { if (nbd_aio_is_dead (nbd) || nbd_aio_is_closed (nbd)) { fprintf (stderr, "thread %zu: connection is dead or closed\n", status->i); goto error; } /* If we want to issue another request, do so. Note that we reuse * the same buffer for multiple in-flight requests. It doesn't * matter here because we're just trying to write random stuff, * but that would be Very Bad in a real application. * Simulate a mix of large and small requests. */ while (i > 0 && in_flight < MAX_IN_FLIGHT) { size = (rand() & 1) ? BUFFER_SIZE : 512; offset = rand () % (exportsize - size); cmd = rand () & 1; if (cmd == 0) cookie = nbd_aio_pwrite (nbd, buf, size, offset, NBD_NULL_COMPLETION, 0); else cookie = nbd_aio_pread (nbd, buf, size, offset, NBD_NULL_COMPLETION, 0); if (cookie == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } cookies[in_flight] = cookie; i--; in_flight++; if (in_flight > status->most_in_flight) status->most_in_flight = in_flight; } fds[0].fd = nbd_aio_get_fd (nbd); fds[0].events = 0; fds[0].revents = 0; dir = nbd_aio_get_direction (nbd); if ((dir & LIBNBD_AIO_DIRECTION_READ) != 0) fds[0].events |= POLLIN; if ((dir & LIBNBD_AIO_DIRECTION_WRITE) != 0) fds[0].events |= POLLOUT; if (poll (fds, 1, -1) == -1) { perror ("poll"); goto error; } if ((dir & LIBNBD_AIO_DIRECTION_READ) != 0 && (fds[0].revents & POLLIN) != 0) nbd_aio_notify_read (nbd); else if ((dir & LIBNBD_AIO_DIRECTION_WRITE) != 0 && (fds[0].revents & POLLOUT) != 0) nbd_aio_notify_write (nbd); /* If a command is ready to retire, retire it. */ for (j = 0; j < in_flight; ++j) { r = nbd_aio_command_completed (nbd, cookies[j]); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } if (r) { memmove (&cookies[j], &cookies[j+1], sizeof (cookies[0]) * (in_flight - j - 1)); j--; in_flight--; status->requests++; } } } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); printf ("thread %zu: finished OK\n", status->i); free (buf); status->status = 0; pthread_exit (status); error: free (buf); fprintf (stderr, "thread %zu: failed\n", status->i); status->status = -1; pthread_exit (status); } ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/examples/LICENSE-FOR-EXAMPLES����������������������������������������������������������0000664�0001750�0001750�00000003443�13524776043�014373� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������The files in the examples/ directory are licensed under this very permissive BSD license. This means that you can copy, use, adapt and modify them without any significant restrictions. You can also combine them with proprietary code or include them in code that is distributed under other open source licenses. ---------------------------------------------------------------------- libnbd examples Copyright (C) 2013-2019 Red Hat Inc. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Red Hat nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/valgrind/������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�011575� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/valgrind/Makefile.am�������������������������������������������������������������������0000664�0001750�0001750�00000002076�13524776043�013553� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/valgrind/gnutls.suppressions�����������������������������������������������������������0000664�0001750�0001750�00000001657�13552713634�015534� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # gnutls_x509_trust_list_add_system_trust leaks everything. { gnutls_1 Memcheck:Leak ... fun:gnutls_x509_trust_list_add_system_trust } ���������������������������������������������������������������������������������libnbd-1.2.2/valgrind/ocaml.suppressions������������������������������������������������������������0000664�0001750�0001750�00000003323�13616543161�015300� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # OCaml, by design, doesn't bother to free the major heap before # calling exit. Ignore that leak. { ocaml_heap_leak Memcheck:Leak ... fun:caml_alloc_for_heap } # On the other hand, these seem to be a real bugs in OCaml: { ocaml_heap_leak_2 Memcheck:Leak fun:malloc fun:caml_thread_new_descriptor fun:caml_thread_new } { ocaml_heap_leak_3 Memcheck:Leak fun:malloc fun:caml_thread_new_descriptor fun:caml_thread_initialize } { ocaml_heap_leak_4 Memcheck:Leak ... fun:pthread_create* ... fun:caml_thread_new } { ocaml_heap_leak_5 Memcheck:Leak fun:malloc fun:caml_stat_alloc } { ocaml_heap_leak_6 Memcheck:Leak fun:malloc ... fun:caml_build_primitive_table } # Add for OCaml 4.10. { ocaml_heap_leak_7 Memcheck:Leak fun:malloc ... fun:caml_init_domain } { ocaml_heap_leak_8 Memcheck:Leak fun:malloc ... fun:caml_init_atom_table } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/valgrind/glibc.suppressions������������������������������������������������������������0000664�0001750�0001750�00000002074�13524776043�015274� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # bindtextdomain leaks. { glibc_1 Memcheck:Leak ... fun:bindtextdomain } # pthread_exit. { glibc_2 Memcheck:Leak ... fun:pthread_exit } # Allow thread-local storage from pthread_create to leak. { glibc_3 Memcheck:Leak fun:calloc ... fun:_dl_allocate_tls } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/���������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�011131� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/Makefile.am����������������������������������������������������������������������0000664�0001750�0001750�00000041505�13571455240�013102� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk CLEANFILES += \ connect-tcp.pid \ connect-unix.pid \ connect-uri-nbd.pid \ connect-uri-nbd-unix.pid \ connect-uri-nbds.pid \ connect-uri-nbds-unix.pid \ connect-uri-nbds-psk.pid \ $(NULL) EXTRA_DIST = \ aio-parallel.sh \ aio-parallel-tls.sh \ aio-parallel-load.sh \ aio-parallel-load-tls.sh \ eflags-plugin.sh \ functions.sh.in \ make-pki.sh \ meta-base-allocation.sh \ synch-parallel.sh \ synch-parallel-tls.sh \ $(NULL) check_DATA = check_PROGRAMS = TESTS = # Make sure that $srcdir is available to tests. # Enable debug in all tests. TESTS_ENVIRONMENT = srcdir=$(srcdir) LIBNBD_DEBUG=1 # Use the ./run script so we're always using the local library and tools. LOG_COMPILER = $(top_builddir)/run #---------------------------------------------------------------------- # The following tests do not need an NBD server. check_PROGRAMS += \ compile-header-only \ compile-c \ compile-ansi-c \ close-null \ debug \ debug-environment \ version \ export-name \ $(NULL) TESTS += \ compile-header-only \ compile-c \ compile-ansi-c \ close-null \ debug \ debug-environment \ version \ export-name \ $(NULL) # Even though we have a compile.c, we do not want make to create a 'compile' .PHONY: compile compile_header_only_SOURCES = compile-header-only.c compile_header_only_CPPFLAGS = -I$(top_srcdir)/include compile_header_only_CFLAGS = $(WARNINGS_CFLAGS) compile_header_only_LDADD = $(top_builddir)/lib/libnbd.la compile_c_SOURCES = compile.c compile_c_CPPFLAGS = -I$(top_srcdir)/include compile_c_CFLAGS = $(WARNINGS_CFLAGS) compile_c_LDADD = $(top_builddir)/lib/libnbd.la compile_ansi_c_SOURCES = compile-ansi-c.c compile_ansi_c_CPPFLAGS = \ -I$(top_srcdir)/include \ -std=c90 -pedantic compile_ansi_c_CFLAGS = $(WARNINGS_CFLAGS) compile_ansi_c_LDADD = $(top_builddir)/lib/libnbd.la close_null_SOURCES = close-null.c close_null_CPPFLAGS = -I$(top_srcdir)/include close_null_CFLAGS = $(WARNINGS_CFLAGS) close_null_LDADD = $(top_builddir)/lib/libnbd.la debug_SOURCES = debug.c debug_CPPFLAGS = -I$(top_srcdir)/include debug_CFLAGS = $(WARNINGS_CFLAGS) debug_LDADD = $(top_builddir)/lib/libnbd.la debug_environment_SOURCES = debug-environment.c debug_environment_CPPFLAGS = -I$(top_srcdir)/include debug_environment_CFLAGS = $(WARNINGS_CFLAGS) debug_environment_LDADD = $(top_builddir)/lib/libnbd.la version_SOURCES = version.c version_CPPFLAGS = -I$(top_srcdir)/include version_CFLAGS = $(WARNINGS_CFLAGS) version_LDADD = $(top_builddir)/lib/libnbd.la export_name_SOURCES = export-name.c export_name_CPPFLAGS = -I$(top_srcdir)/include export_name_CFLAGS = $(WARNINGS_CFLAGS) export_name_LDADD = $(top_builddir)/lib/libnbd.la if HAVE_CXX check_PROGRAMS += compile-cxx TESTS += compile-cxx compile_cxx_SOURCES = compile-cxx.cpp compile_cxx_CPPFLAGS = -I$(top_srcdir)/include compile_cxx_CXXFLAGS = $(WARNINGS_CFLAGS) compile_cxx_LDADD = $(top_builddir)/lib/libnbd.la endif HAVE_CXX #---------------------------------------------------------------------- # The following tests require nbdkit as an NBD server to test against. if HAVE_NBDKIT check_PROGRAMS += \ errors \ server-death \ get-size \ read-only-flag \ read-write-flag \ can-flush-flag \ can-not-flush-flag \ can-fua-flag \ can-not-fua-flag \ is-rotational-flag \ is-not-rotational-flag \ can-trim-flag \ can-not-trim-flag \ can-zero-flag \ can-not-zero-flag \ can-fast-zero-flag \ can-not-fast-zero-flag \ can-df-flag \ can-not-df-flag \ can-multi-conn-flag \ can-not-multi-conn-flag \ can-cache-flag \ can-not-cache-flag \ oldstyle \ connect-unix \ connect-tcp \ aio-parallel \ aio-parallel-load \ synch-parallel \ meta-base-allocation \ closure-lifetimes \ $(NULL) TESTS += \ errors \ server-death \ get-size \ read-only-flag \ read-write-flag \ can-flush-flag \ can-not-flush-flag \ can-fua-flag \ can-not-fua-flag \ is-rotational-flag \ is-not-rotational-flag \ can-trim-flag \ can-not-trim-flag \ can-zero-flag \ can-not-zero-flag \ can-fast-zero-flag \ can-not-fast-zero-flag \ can-df-flag \ can-not-df-flag \ can-multi-conn-flag \ can-not-multi-conn-flag \ can-cache-flag \ can-not-cache-flag \ oldstyle \ connect-unix \ connect-tcp \ aio-parallel.sh \ aio-parallel-load.sh \ synch-parallel.sh \ meta-base-allocation \ closure-lifetimes \ $(NULL) errors_SOURCES = errors.c errors_CPPFLAGS = -I$(top_srcdir)/include errors_CFLAGS = $(WARNINGS_CFLAGS) errors_LDADD = $(top_builddir)/lib/libnbd.la server_death_SOURCES = server-death.c server_death_CPPFLAGS = -I$(top_srcdir)/include server_death_CFLAGS = $(WARNINGS_CFLAGS) server_death_LDADD = $(top_builddir)/lib/libnbd.la get_size_SOURCES = get-size.c get_size_CPPFLAGS = -I$(top_srcdir)/include get_size_CFLAGS = $(WARNINGS_CFLAGS) get_size_LDADD = $(top_builddir)/lib/libnbd.la read_only_flag_SOURCES = read-only-flag.c read_only_flag_CPPFLAGS = -I$(top_srcdir)/include read_only_flag_CFLAGS = $(WARNINGS_CFLAGS) read_only_flag_LDADD = $(top_builddir)/lib/libnbd.la read_write_flag_SOURCES = read-write-flag.c read_write_flag_CPPFLAGS = -I$(top_srcdir)/include read_write_flag_CFLAGS = $(WARNINGS_CFLAGS) read_write_flag_LDADD = $(top_builddir)/lib/libnbd.la can_flush_flag_SOURCES = eflags.c can_flush_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_flush \ $(NULL) can_flush_flag_CFLAGS = $(WARNINGS_CFLAGS) can_flush_flag_LDADD = $(top_builddir)/lib/libnbd.la can_not_flush_flag_SOURCES = eflags.c can_not_flush_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_flush -Dvalue=false \ $(NULL) can_not_flush_flag_CFLAGS = $(WARNINGS_CFLAGS) can_not_flush_flag_LDADD = $(top_builddir)/lib/libnbd.la can_fua_flag_SOURCES = eflags.c can_fua_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_fua -Dvalue=native \ $(NULL) can_fua_flag_CFLAGS = $(WARNINGS_CFLAGS) can_fua_flag_LDADD = $(top_builddir)/lib/libnbd.la can_not_fua_flag_SOURCES = eflags.c can_not_fua_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_fua -Dvalue=none \ $(NULL) can_not_fua_flag_CFLAGS = $(WARNINGS_CFLAGS) can_not_fua_flag_LDADD = $(top_builddir)/lib/libnbd.la is_rotational_flag_SOURCES = eflags.c is_rotational_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=is_rotational \ $(NULL) is_rotational_flag_CFLAGS = $(WARNINGS_CFLAGS) is_rotational_flag_LDADD = $(top_builddir)/lib/libnbd.la is_not_rotational_flag_SOURCES = eflags.c is_not_rotational_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=is_rotational -Dvalue=false \ $(NULL) is_not_rotational_flag_CFLAGS = $(WARNINGS_CFLAGS) is_not_rotational_flag_LDADD = $(top_builddir)/lib/libnbd.la can_trim_flag_SOURCES = eflags.c can_trim_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_trim \ $(NULL) can_trim_flag_CFLAGS = $(WARNINGS_CFLAGS) can_trim_flag_LDADD = $(top_builddir)/lib/libnbd.la can_not_trim_flag_SOURCES = eflags.c can_not_trim_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_trim -Dvalue=false \ $(NULL) can_not_trim_flag_CFLAGS = $(WARNINGS_CFLAGS) can_not_trim_flag_LDADD = $(top_builddir)/lib/libnbd.la can_zero_flag_SOURCES = eflags.c can_zero_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_zero \ $(NULL) can_zero_flag_CFLAGS = $(WARNINGS_CFLAGS) can_zero_flag_LDADD = $(top_builddir)/lib/libnbd.la can_not_zero_flag_SOURCES = eflags.c can_not_zero_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_zero -Dvalue=false \ -Dfilter='"--filter=nozero"' \ $(NULL) can_not_zero_flag_CFLAGS = $(WARNINGS_CFLAGS) can_not_zero_flag_LDADD = $(top_builddir)/lib/libnbd.la can_fast_zero_flag_SOURCES = eflags.c can_fast_zero_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_fast_zero \ -Drequire='"has_can_fast_zero=1"' \ $(NULL) can_fast_zero_flag_CFLAGS = $(WARNINGS_CFLAGS) can_fast_zero_flag_LDADD = $(top_builddir)/lib/libnbd.la can_not_fast_zero_flag_SOURCES = eflags.c can_not_fast_zero_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_fast_zero -Dvalue=false \ -Drequire='"has_can_fast_zero=1"' \ $(NULL) can_not_fast_zero_flag_CFLAGS = $(WARNINGS_CFLAGS) can_not_fast_zero_flag_LDADD = $(top_builddir)/lib/libnbd.la can_df_flag_SOURCES = eflags.c can_df_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_df \ $(NULL) can_df_flag_CFLAGS = $(WARNINGS_CFLAGS) can_df_flag_LDADD = $(top_builddir)/lib/libnbd.la can_not_df_flag_SOURCES = eflags.c can_not_df_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_df -Dvalue=false -Dno_sr \ $(NULL) can_not_df_flag_CFLAGS = $(WARNINGS_CFLAGS) can_not_df_flag_LDADD = $(top_builddir)/lib/libnbd.la can_multi_conn_flag_SOURCES = eflags.c can_multi_conn_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_multi_conn \ $(NULL) can_multi_conn_flag_CFLAGS = $(WARNINGS_CFLAGS) can_multi_conn_flag_LDADD = $(top_builddir)/lib/libnbd.la can_not_multi_conn_flag_SOURCES = eflags.c can_not_multi_conn_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_multi_conn -Dvalue=false \ $(NULL) can_not_multi_conn_flag_CFLAGS = $(WARNINGS_CFLAGS) can_not_multi_conn_flag_LDADD = $(top_builddir)/lib/libnbd.la can_cache_flag_SOURCES = eflags.c can_cache_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_cache -Dvalue=native \ -Drequire='"has_can_cache=1"' \ $(NULL) can_cache_flag_CFLAGS = $(WARNINGS_CFLAGS) can_cache_flag_LDADD = $(top_builddir)/lib/libnbd.la can_not_cache_flag_SOURCES = eflags.c can_not_cache_flag_CPPFLAGS = \ -I$(top_srcdir)/include -Dflag=can_cache -Dvalue=none \ -Drequire='"has_can_cache=1"' \ $(NULL) can_not_cache_flag_CFLAGS = $(WARNINGS_CFLAGS) can_not_cache_flag_LDADD = $(top_builddir)/lib/libnbd.la oldstyle_SOURCES = oldstyle.c oldstyle_CPPFLAGS = -I$(top_srcdir)/include oldstyle_CFLAGS = $(WARNINGS_CFLAGS) oldstyle_LDADD = $(top_builddir)/lib/libnbd.la connect_unix_SOURCES = connect-unix.c connect_unix_CPPFLAGS = -I$(top_srcdir)/include connect_unix_CFLAGS = $(WARNINGS_CFLAGS) connect_unix_LDADD = $(top_builddir)/lib/libnbd.la connect_tcp_SOURCES = connect-tcp.c connect_tcp_CPPFLAGS = -I$(top_srcdir)/include connect_tcp_CFLAGS = $(WARNINGS_CFLAGS) connect_tcp_LDADD = $(top_builddir)/lib/libnbd.la aio_parallel_SOURCES = aio-parallel.c aio_parallel_CPPFLAGS = \ -I$(top_srcdir)/include \ -I$(top_srcdir)/common/include \ $(NULL) aio_parallel_CFLAGS = $(WARNINGS_CFLAGS) $(PTHREAD_CFLAGS) aio_parallel_LDADD = $(top_builddir)/lib/libnbd.la $(PTHREAD_LIBS) aio_parallel_load_SOURCES = aio-parallel-load.c aio_parallel_load_CPPFLAGS = -I$(top_srcdir)/include aio_parallel_load_CFLAGS = $(WARNINGS_CFLAGS) $(PTHREAD_CFLAGS) aio_parallel_load_LDADD = $(top_builddir)/lib/libnbd.la $(PTHREAD_LIBS) synch_parallel_SOURCES = synch-parallel.c synch_parallel_CPPFLAGS = \ -I$(top_srcdir)/include \ -I$(top_srcdir)/common/include \ $(NULL) synch_parallel_CFLAGS = $(WARNINGS_CFLAGS) $(PTHREAD_CFLAGS) synch_parallel_LDADD = $(top_builddir)/lib/libnbd.la $(PTHREAD_LIBS) meta_base_allocation_SOURCES = meta-base-allocation.c meta_base_allocation_CPPFLAGS = -I$(top_srcdir)/include meta_base_allocation_CFLAGS = $(WARNINGS_CFLAGS) meta_base_allocation_LDADD = $(top_builddir)/lib/libnbd.la closure_lifetimes_SOURCES = closure-lifetimes.c closure_lifetimes_CPPFLAGS = -I$(top_srcdir)/include closure_lifetimes_CFLAGS = $(WARNINGS_CFLAGS) closure_lifetimes_LDADD = $(top_builddir)/lib/libnbd.la #---------------------------------------------------------------------- # Testing TLS support. if HAVE_GNUTLS if HAVE_CERTTOOL check_PROGRAMS += connect-tls-certs check_DATA += pki/stamp-pki TESTS += connect-tls-certs connect_tls_certs_SOURCES = connect-tls.c connect_tls_certs_CPPFLAGS = -I$(top_srcdir)/include -DCERTS=1 connect_tls_certs_CFLAGS = $(WARNINGS_CFLAGS) connect_tls_certs_LDADD = $(top_builddir)/lib/libnbd.la pki/stamp-pki: $(srcdir)/make-pki.sh rm -rf pki pki-t SRCDIR=$(srcdir) CERTTOOL=$(CERTTOOL) $(srcdir)/make-pki.sh pki-t mv pki-t pki touch pki/stamp-pki endif HAVE_CERTTOOL if HAVE_PSKTOOL check_PROGRAMS += \ connect-tls-psk \ aio-parallel-tls \ aio-parallel-load-tls \ synch-parallel-tls \ $(NULL) TESTS += \ connect-tls-psk \ aio-parallel-tls.sh \ aio-parallel-load-tls.sh \ synch-parallel-tls.sh \ $(NULL) check_DATA += keys.psk connect_tls_psk_SOURCES = connect-tls.c connect_tls_psk_CPPFLAGS = -I$(top_srcdir)/include -DPSK=1 connect_tls_psk_CFLAGS = $(WARNINGS_CFLAGS) connect_tls_psk_LDADD = $(top_builddir)/lib/libnbd.la aio_parallel_tls_SOURCES = aio-parallel.c aio_parallel_tls_CPPFLAGS = \ -I$(top_srcdir)/include \ -I$(top_srcdir)/common/include \ -DTLS=1 \ $(NULL) aio_parallel_tls_CFLAGS = $(WARNINGS_CFLAGS) $(PTHREAD_CFLAGS) aio_parallel_tls_LDADD = $(top_builddir)/lib/libnbd.la $(PTHREAD_LIBS) aio_parallel_load_tls_SOURCES = aio-parallel-load.c aio_parallel_load_tls_CPPFLAGS = -I$(top_srcdir)/include -DTLS=1 aio_parallel_load_tls_CFLAGS = $(WARNINGS_CFLAGS) $(PTHREAD_CFLAGS) aio_parallel_load_tls_LDADD = $(top_builddir)/lib/libnbd.la $(PTHREAD_LIBS) synch_parallel_tls_SOURCES = synch-parallel.c synch_parallel_tls_CPPFLAGS = \ -I$(top_srcdir)/include \ -I$(top_srcdir)/common/include \ -DTLS=1 \ $(NULL) synch_parallel_tls_CFLAGS = $(WARNINGS_CFLAGS) $(PTHREAD_CFLAGS) synch_parallel_tls_LDADD = $(top_builddir)/lib/libnbd.la $(PTHREAD_LIBS) keys.psk: rm -f $@ $@-t $(PSKTOOL) -u alice -p $@-t mv $@-t $@ endif HAVE_PSKTOOL endif HAVE_GNUTLS #---------------------------------------------------------------------- # Testing URIs. check_PROGRAMS += \ connect-uri-nbd \ connect-uri-nbd-unix \ $(NULL) TESTS += \ connect-uri-nbd \ connect-uri-nbd-unix \ $(NULL) RANDOM1 := $(shell bash -c "echo $$(( 32768 + (RANDOM & 16383) ))") connect_uri_nbd_SOURCES = connect-uri.c connect_uri_nbd_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER_PARAMS='"-p", "$(RANDOM1)"' \ -DPIDFILE='"connect-uri-nbd.pid"' \ -DURI='"nbd://localhost:$(RANDOM1)/"' connect_uri_nbd_CFLAGS = $(WARNINGS_CFLAGS) connect_uri_nbd_LDADD = $(top_builddir)/lib/libnbd.la CONNECT_URI_NBD_UNIX_SOCKET := \ $(shell mktemp /tmp/connect-uri-nbd-unix-socket-XXXXXX) connect_uri_nbd_unix_SOURCES = connect-uri.c connect_uri_nbd_unix_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER_PARAMS='"-U", SOCKET' \ -DSOCKET='"$(CONNECT_URI_NBD_UNIX_SOCKET)"' \ -DPIDFILE='"connect-uri-nbd-unix.pid"' \ -DURI='"nbd+unix:///?socket=" SOCKET' connect_uri_nbd_unix_CFLAGS = $(WARNINGS_CFLAGS) connect_uri_nbd_unix_LDADD = $(top_builddir)/lib/libnbd.la if HAVE_GNUTLS if HAVE_CERTTOOL check_PROGRAMS += \ connect-uri-nbds \ connect-uri-nbds-unix \ $(NULL) TESTS += \ connect-uri-nbds \ connect-uri-nbds-unix \ $(NULL) RANDOM2 := $(shell bash -c "echo $$(( 32768 + (RANDOM & 16383) ))") connect_uri_nbds_SOURCES = connect-uri.c connect_uri_nbds_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER_PARAMS='"-p", "$(RANDOM2)", "--tls=require", "--tls-certificates=pki"' \ -DPIDFILE='"connect-uri-nbds.pid"' \ -DURI='"nbds://localhost:$(RANDOM2)/"' connect_uri_nbds_CFLAGS = $(WARNINGS_CFLAGS) connect_uri_nbds_LDADD = $(top_builddir)/lib/libnbd.la CONNECT_URI_NBDS_UNIX_SOCKET := \ $(shell mktemp /tmp/connect-uri-nbds-unix-socket-XXXXXX) connect_uri_nbds_unix_SOURCES = connect-uri.c connect_uri_nbds_unix_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER_PARAMS='"-U", SOCKET, "--tls=require", "--tls-certificates=pki"' \ -DSOCKET='"$(CONNECT_URI_NBDS_UNIX_SOCKET)"' \ -DPIDFILE='"connect-uri-nbds-unix.pid"' \ -DURI='"nbds+unix:///?socket=" SOCKET' connect_uri_nbds_unix_CFLAGS = $(WARNINGS_CFLAGS) connect_uri_nbds_unix_LDADD = $(top_builddir)/lib/libnbd.la endif HAVE_CERTTOOL if HAVE_PSKTOOL check_PROGRAMS += \ connect-uri-nbds-psk \ $(NULL) TESTS += \ connect-uri-nbds-psk \ $(NULL) RANDOM3 := $(shell bash -c "echo $$(( 32768 + (RANDOM & 16383) ))") connect_uri_nbds_psk_SOURCES = connect-uri.c connect_uri_nbds_psk_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER_PARAMS='"-p", "$(RANDOM3)", "--tls=require", "--tls-psk=keys.psk"' \ -DPIDFILE='"connect-uri-nbds-psk.pid"' \ -DURI='"nbds://alice@localhost:$(RANDOM3)/?tls-psk-file=keys.psk"' connect_uri_nbds_psk_CFLAGS = $(WARNINGS_CFLAGS) connect_uri_nbds_psk_LDADD = $(top_builddir)/lib/libnbd.la endif HAVE_PSKTOOL endif HAVE_GNUTLS # Keys are expensive to recreate, so only delete them when we do # ‘make distclean’. DISTCLEANFILES = keys.psk distclean-local: distclean-local-tls distclean-local-tls: rm -rf pki endif HAVE_NBDKIT check-valgrind: LIBNBD_VALGRIND=1 $(MAKE) check �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/Makefile.in����������������������������������������������������������������������0000664�0001750�0001750�00000727430�13616543374�013131� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# Makefile.in generated by automake 1.16.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2018 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # subdir-rules.mk is included only in subdirectories. # common-rules.mk is included in every Makefile.am. # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # common-rules.mk is included in every Makefile.am. # subdir-rules.mk is included only in subdirectories. 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\ distclean-generic distclean-libtool distclean-local \ distclean-tags distdir dvi dvi-am html html-am info info-am \ install install-am install-data install-data-am install-dvi \ install-dvi-am install-exec install-exec-am install-html \ install-html-am install-info install-info-am install-man \ install-pdf install-pdf-am install-ps install-ps-am \ install-strip installcheck installcheck-am installdirs \ maintainer-clean maintainer-clean-generic mostlyclean \ mostlyclean-compile mostlyclean-generic mostlyclean-libtool \ pdf pdf-am ps ps-am recheck tags tags-am uninstall \ uninstall-am .PRECIOUS: Makefile $(generator_built): $(top_builddir)/generator/stamp-generator $(top_builddir)/generator/stamp-generator: \ $(top_srcdir)/generator/generator \ $(wildcard $(top_srcdir)/generator/states*.c) $(MAKE) -C $(top_builddir)/generator stamp-generator %.cmi: %.mli $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ %.cmo: %.ml $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ @HAVE_OCAMLOPT_TRUE@%.cmx: %.ml @HAVE_OCAMLOPT_TRUE@ $(OCAMLFIND) ocamlopt $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ $(top_builddir)/podwrapper.pl: $(top_srcdir)/podwrapper.pl.in $(MAKE) -C $(top_builddir) podwrapper.pl # Even though we have a compile.c, we do not want make to create a 'compile' .PHONY: compile @HAVE_CERTTOOL_TRUE@@HAVE_GNUTLS_TRUE@@HAVE_NBDKIT_TRUE@pki/stamp-pki: $(srcdir)/make-pki.sh @HAVE_CERTTOOL_TRUE@@HAVE_GNUTLS_TRUE@@HAVE_NBDKIT_TRUE@ rm -rf pki pki-t @HAVE_CERTTOOL_TRUE@@HAVE_GNUTLS_TRUE@@HAVE_NBDKIT_TRUE@ SRCDIR=$(srcdir) CERTTOOL=$(CERTTOOL) $(srcdir)/make-pki.sh pki-t @HAVE_CERTTOOL_TRUE@@HAVE_GNUTLS_TRUE@@HAVE_NBDKIT_TRUE@ mv pki-t pki @HAVE_CERTTOOL_TRUE@@HAVE_GNUTLS_TRUE@@HAVE_NBDKIT_TRUE@ touch pki/stamp-pki @HAVE_GNUTLS_TRUE@@HAVE_NBDKIT_TRUE@@HAVE_PSKTOOL_TRUE@keys.psk: @HAVE_GNUTLS_TRUE@@HAVE_NBDKIT_TRUE@@HAVE_PSKTOOL_TRUE@ rm -f $@ $@-t @HAVE_GNUTLS_TRUE@@HAVE_NBDKIT_TRUE@@HAVE_PSKTOOL_TRUE@ $(PSKTOOL) -u alice -p $@-t @HAVE_GNUTLS_TRUE@@HAVE_NBDKIT_TRUE@@HAVE_PSKTOOL_TRUE@ mv $@-t $@ @HAVE_NBDKIT_TRUE@distclean-local: distclean-local-tls @HAVE_NBDKIT_TRUE@distclean-local-tls: @HAVE_NBDKIT_TRUE@ rm -rf pki check-valgrind: LIBNBD_VALGRIND=1 $(MAKE) check # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/functions.sh.in������������������������������������������������������������������0000664�0001750�0001750�00000005767�13524776043�014036� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbdkit # Common functions used by the tests. # @configure_input@ # Copyright (C) 2017-2019 Red Hat Inc. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # # * Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # * Neither the name of Red Hat nor the names of its contributors may be # used to endorse or promote products derived from this software without # specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. # cleanup_fn f [args] # # A generic trap handling function. This runs the function or command # f plus optional args when the script exits for any reason. declare -a _cleanup_hook cleanup_fn () { _cleanup_hook[${#_cleanup_hook[@]}]="$@" } _run_cleanup_hooks () { status=$? set +e trap '' INT QUIT TERM EXIT ERR echo $0: run cleanup hooks: exit code $status for (( i = 0; i < ${#_cleanup_hook[@]}; ++i )); do ${_cleanup_hook[i]} done exit $status } trap _run_cleanup_hooks INT QUIT TERM EXIT ERR # requires program [args] # # Check that ‘program [args]’ works. If not, skip the test. # For example to check that qemu-img is available, do: # # requires qemu-img --version requires () { ( "$@" ) </dev/null >/dev/null 2>&1 || { echo "$0: ‘$*’ failed with error code $?" echo "$0: test prerequisite is missing or not working" exit 77 } } # pick_unused_port # # Picks and returns an "unused" port, setting the global variable # $port. # # This is inherently racy so we only use it where it's absolutely # necessary (eg. testing TLS because qemu cannot do TLS over a Unix # domain socket). pick_unused_port () { requires ss --version # Start at a random port to make it less likely that two parallel # tests will conflict. port=$(( 50000 + (RANDOM%15000) )) while ss -ltn | grep -sqE ":$port\b"; do ((port++)) if [ $port -eq 65000 ]; then port=50000; fi done echo picked unused port $port } ���������libnbd-1.2.2/tests/aio-parallel.c�������������������������������������������������������������������0000664�0001750�0001750�00000024032�13552713634�013553� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test asynchronous IO parallel data integrity. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <inttypes.h> #include <string.h> #include <unistd.h> #include <errno.h> #include <time.h> #include <poll.h> #include <assert.h> #include <pthread.h> #include <libnbd.h> #include "byte-swapping.h" /* We keep a shadow of the RAM disk so we can check integrity of the data. */ static char *ramdisk; /* Size of read and write buffer. */ #define BUFFERSIZE 16384 /* This is also defined in aio-parallel.sh and checked here. */ #define EXPORTSIZE (64*1024*1024) /* How long (seconds) that the test will run for. */ #define RUN_TIME 10 /* Number of threads and connections. */ #define NR_MULTI_CONN 8 /* Number of commands in flight per connection. */ #define MAX_IN_FLIGHT 64 #if BUFFERSIZE >= EXPORTSIZE / NR_MULTI_CONN / MAX_IN_FLIGHT #error "EXPORTSIZE too small" #endif /* Unix socket. */ static const char *unixsocket; struct thread_status { size_t i; /* Thread index, 0 .. NR_MULTI_CONN-1 */ time_t end_time; /* Threads run until this end time. */ /* Area assigned to this thread and command in flight. */ uint64_t offset[MAX_IN_FLIGHT], length[MAX_IN_FLIGHT]; int status; /* Return status. */ unsigned requests; /* Total number of requests made. */ unsigned most_in_flight; /* Most requests seen in flight. */ uint64_t bytes_sent, bytes_received; /* Bytes sent and received by thread. */ }; static void *start_thread (void *arg); int main (int argc, char *argv[]) { pthread_t threads[NR_MULTI_CONN]; struct thread_status status[NR_MULTI_CONN]; uint64_t i, j; time_t t; int err; unsigned requests, most_in_flight, errors; uint64_t bytes_sent, bytes_received; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } unixsocket = argv[1]; /* Get the current time and the end time. */ time (&t); t += RUN_TIME; srand (t + getpid ()); /* Initialize the RAM disk with the initial data from * nbdkit-pattern-filter. */ ramdisk = malloc (EXPORTSIZE); if (ramdisk == NULL) { perror ("calloc"); exit (EXIT_FAILURE); } for (i = 0; i < EXPORTSIZE; i += 8) { uint64_t d = htobe64 (i); memcpy (&ramdisk[i], &d, sizeof d); } /* Start the worker threads, one per connection. */ for (i = 0; i < NR_MULTI_CONN; ++i) { status[i].i = i; status[i].end_time = t; for (j = 0; j < MAX_IN_FLIGHT; ++j) { status[i].offset[j] = (i * MAX_IN_FLIGHT + j) * EXPORTSIZE / NR_MULTI_CONN / MAX_IN_FLIGHT; status[i].length[j] = EXPORTSIZE / NR_MULTI_CONN / MAX_IN_FLIGHT; } status[i].status = 0; status[i].requests = 0; status[i].most_in_flight = 0; status[i].bytes_sent = status[i].bytes_received = 0; err = pthread_create (&threads[i], NULL, start_thread, &status[i]); if (err != 0) { errno = err; perror ("pthread_create"); exit (EXIT_FAILURE); } } /* Wait for the threads to exit. */ errors = 0; requests = 0; most_in_flight = 0; bytes_sent = bytes_received = 0; for (i = 0; i < NR_MULTI_CONN; ++i) { err = pthread_join (threads[i], NULL); if (err != 0) { errno = err; perror ("pthread_join"); exit (EXIT_FAILURE); } if (status[i].status != 0) { fprintf (stderr, "thread %" PRIu64 " failed with status %d\n", i, status[i].status); errors++; } requests += status[i].requests; if (status[i].most_in_flight > most_in_flight) most_in_flight = status[i].most_in_flight; bytes_sent += status[i].bytes_sent; bytes_received += status[i].bytes_received; } free (ramdisk); /* Print some stats. */ printf ("TLS: %s\n", #ifdef TLS "enabled" #else "disabled" #endif ); printf ("multi-conn: %d\n", NR_MULTI_CONN); printf ("max in flight permitted (per connection): %d\n", MAX_IN_FLIGHT); printf ("bytes sent: %" PRIu64 " (%g Mbytes/s)\n", bytes_sent, (double) bytes_sent / RUN_TIME / 1000000); printf ("bytes received: %" PRIu64 " (%g Mbytes/s)\n", bytes_received, (double) bytes_received / RUN_TIME / 1000000); printf ("I/O requests: %u (%g IOPS)\n", requests, (double) requests / RUN_TIME); printf ("max requests in flight: %u\n", most_in_flight); exit (errors == 0 ? EXIT_SUCCESS : EXIT_FAILURE); } struct command { char buf[BUFFERSIZE]; int64_t offset; /* -1 = slot not used */ int64_t cookie; int cmd; }; static struct command commands[NR_MULTI_CONN][MAX_IN_FLIGHT]; static void * start_thread (void *arg) { struct pollfd fds[1]; struct thread_status *status = arg; struct nbd_handle *nbd; size_t i; int64_t offset, cookie; char *buf; unsigned dir; int r, cmd; time_t t; bool expired = false; for (i = 0; i < MAX_IN_FLIGHT; ++i) commands[status->i][i].offset = -1; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #ifdef TLS /* Require TLS on the handle and fail if not available or if the * handshake fails. */ if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_set_tls_username (nbd, "alice") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_set_tls_psk_file (nbd, "keys.psk") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #endif /* Connect to nbdkit. */ if (nbd_connect_unix (nbd, unixsocket) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (nbd_get_size (nbd) == EXPORTSIZE); assert (nbd_can_multi_conn (nbd) > 0); assert (nbd_is_read_only (nbd) == 0); /* Issue commands. */ assert (nbd_aio_in_flight (nbd) == 0); while (!expired || nbd_aio_in_flight (nbd) > 0) { if (nbd_aio_is_dead (nbd) || nbd_aio_is_closed (nbd)) { fprintf (stderr, "thread %zu: connection is dead or closed\n", status->i); goto error; } /* Run until the timer expires. */ time (&t); if (t > status->end_time) { expired = true; if (nbd_aio_in_flight (nbd) <= 0) break; } /* If we can issue another request, do so. */ while (!expired && nbd_aio_in_flight (nbd) < MAX_IN_FLIGHT) { /* Find a free command slot. */ for (i = 0; i < MAX_IN_FLIGHT; ++i) if (commands[status->i][i].offset == -1) break; assert (i < MAX_IN_FLIGHT); buf = commands[status->i][i].buf; offset = status->offset[i] + (rand () % (status->length[i] - BUFFERSIZE)); cmd = rand () & 1; if (cmd == 0) { cookie = nbd_aio_pwrite (nbd, buf, BUFFERSIZE, offset, NBD_NULL_COMPLETION, 0); status->bytes_sent += BUFFERSIZE; memcpy (&ramdisk[offset], buf, BUFFERSIZE); } else { cookie = nbd_aio_pread (nbd, buf, BUFFERSIZE, offset, NBD_NULL_COMPLETION, 0); status->bytes_received += BUFFERSIZE; } if (cookie == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } commands[status->i][i].offset = offset; commands[status->i][i].cookie = cookie; commands[status->i][i].cmd = cmd; if (nbd_aio_in_flight (nbd) > status->most_in_flight) status->most_in_flight = nbd_aio_in_flight (nbd); } fds[0].fd = nbd_aio_get_fd (nbd); fds[0].events = 0; fds[0].revents = 0; dir = nbd_aio_get_direction (nbd); if ((dir & LIBNBD_AIO_DIRECTION_READ) != 0) fds[0].events |= POLLIN; if ((dir & LIBNBD_AIO_DIRECTION_WRITE) != 0) fds[0].events |= POLLOUT; if (poll (fds, 1, -1) == -1) { perror ("poll"); goto error; } if ((dir & LIBNBD_AIO_DIRECTION_READ) != 0 && (fds[0].revents & POLLIN) != 0) nbd_aio_notify_read (nbd); else if ((dir & LIBNBD_AIO_DIRECTION_WRITE) != 0 && (fds[0].revents & POLLOUT) != 0) nbd_aio_notify_write (nbd); /* If a command is ready to retire, retire it. */ for (i = 0; i < MAX_IN_FLIGHT; ++i) { if (commands[status->i][i].offset >= 0) { offset = commands[status->i][i].offset; cookie = commands[status->i][i].cookie; cmd = commands[status->i][i].cmd; buf = commands[status->i][i].buf; r = nbd_aio_command_completed (nbd, cookie); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } if (r) { if (cmd == 1 && memcmp (&ramdisk[offset], buf, BUFFERSIZE) != 0) { fprintf (stderr, "thread %zu: DATA INTEGRITY ERROR!\n", status->i); goto error; } commands[status->i][i].offset = -1; status->requests++; } } } } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } nbd_close (nbd); printf ("thread %zu: finished OK\n", status->i); status->status = 0; pthread_exit (status); error: fprintf (stderr, "thread %zu: failed\n", status->i); status->status = -1; pthread_exit (status); } ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/aio-parallel-load.c��������������������������������������������������������������0000664�0001750�0001750�00000022244�13552713634�014473� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test an asynchronous random load. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <inttypes.h> #include <string.h> #include <unistd.h> #include <errno.h> #include <time.h> #include <poll.h> #include <assert.h> #include <pthread.h> #include <libnbd.h> /* This is also defined in aio-parallel-load.sh and checked here. */ #define EXPORTSIZE (64*1024*1024) /* How long (seconds) that the test will run for. */ #define RUN_TIME 10 /* Number of threads and connections. */ #define NR_MULTI_CONN 8 /* Number of commands in flight per connection. */ #define MAX_IN_FLIGHT 64 /* Unix socket or uri. */ static const char *connection; struct thread_status { size_t i; /* Thread index, 0 .. NR_MULTI_CONN-1 */ time_t end_time; /* Threads run until this end time. */ size_t buf_size; /* Size of requests. */ int status; /* Return status. */ unsigned requests; /* Total number of requests made. */ unsigned most_in_flight; /* Most requests seen in flight. */ uint64_t bytes_sent, bytes_received; /* Bytes sent and received by thread. */ }; /* There's a single shared buffer for all requests, which is not * realistic, but this test is not about data integrity but the * protocol handling under load. */ static char *buf; static void *start_thread (void *arg); int main (int argc, char *argv[]) { pthread_t threads[NR_MULTI_CONN]; struct thread_status status[NR_MULTI_CONN]; size_t i; time_t t; int err; unsigned requests, most_in_flight, errors; uint64_t bytes_sent, bytes_received; size_t buf_size; if (argc < 2 || argc > 3) { fprintf (stderr, "%s socket [buf-size]\n", argv[0]); exit (EXIT_FAILURE); } connection = argv[1]; if (argc == 3) { char *end; errno = 0; buf_size = strtoul (argv[2], &end, 0); if (errno || argv[2] == end || buf_size == 0 || buf_size >= EXPORTSIZE) { fprintf (stderr, "invalid buf-size %s, must be positive integer < %d\n", argv[2], EXPORTSIZE); exit (EXIT_FAILURE); } } else buf_size = 64 * 1024; buf = malloc (buf_size); if (!buf) { perror ("malloc"); exit (EXIT_FAILURE); } /* Get the current time and the end time. */ time (&t); t += RUN_TIME; /* Initialize the buffer with random data. */ srand (t + getpid ()); for (i = 0; i < buf_size; ++i) buf[i] = rand (); /* Start the worker threads, one per connection. */ for (i = 0; i < NR_MULTI_CONN; ++i) { status[i].i = i; status[i].end_time = t; status[i].buf_size = buf_size; status[i].status = 0; status[i].requests = 0; status[i].most_in_flight = 0; status[i].bytes_sent = status[i].bytes_received = 0; err = pthread_create (&threads[i], NULL, start_thread, &status[i]); if (err != 0) { errno = err; perror ("pthread_create"); exit (EXIT_FAILURE); } } /* Wait for the threads to exit. */ errors = 0; requests = 0; most_in_flight = 0; bytes_sent = bytes_received = 0; for (i = 0; i < NR_MULTI_CONN; ++i) { err = pthread_join (threads[i], NULL); if (err != 0) { errno = err; perror ("pthread_join"); exit (EXIT_FAILURE); } if (status[i].status != 0) { fprintf (stderr, "thread %zu failed with status %d\n", i, status[i].status); errors++; } requests += status[i].requests; if (status[i].most_in_flight > most_in_flight) most_in_flight = status[i].most_in_flight; bytes_sent += status[i].bytes_sent; bytes_received += status[i].bytes_received; } /* Print some stats. */ printf ("TLS: %s\n", #ifdef TLS "enabled" #else "disabled" #endif ); printf ("multi-conn: %d\n", NR_MULTI_CONN); printf ("max in flight permitted (per connection): %d\n", MAX_IN_FLIGHT); printf ("bytes sent: %" PRIu64 " (%g Mbytes/s)\n", bytes_sent, (double) bytes_sent / RUN_TIME / 1000000); printf ("bytes received: %" PRIu64 " (%g Mbytes/s)\n", bytes_received, (double) bytes_received / RUN_TIME / 1000000); printf ("I/O requests: %u (%g IOPS)\n", requests, (double) requests / RUN_TIME); printf ("max requests in flight: %u\n", most_in_flight); exit (errors == 0 ? EXIT_SUCCESS : EXIT_FAILURE); } static void * start_thread (void *arg) { struct pollfd fds[1]; struct thread_status *status = arg; size_t buf_size = status->buf_size; struct nbd_handle *nbd; size_t i; uint64_t offset; int64_t cookie; int64_t cookies[MAX_IN_FLIGHT] = { 0 }; unsigned dir; int r, cmd; time_t t; bool expired = false; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #ifdef TLS /* Require TLS on the handle and fail if not available or if the * handshake fails. */ if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_set_tls_username (nbd, "alice") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_set_tls_psk_file (nbd, "keys.psk") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #endif /* Connect to nbdkit. */ if (strstr (connection, "://")) { if (nbd_connect_uri (nbd, connection) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } } else if (nbd_connect_unix (nbd, connection) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (nbd_get_size (nbd) == EXPORTSIZE); assert (nbd_can_multi_conn (nbd) > 0); assert (nbd_is_read_only (nbd) == 0); /* Issue commands. */ assert (nbd_aio_in_flight (nbd) == 0); while (!expired || nbd_aio_in_flight (nbd) > 0) { if (nbd_aio_is_dead (nbd) || nbd_aio_is_closed (nbd)) { fprintf (stderr, "thread %zu: connection is dead or closed\n", status->i); goto error; } /* Run until the timer expires. */ time (&t); if (t > status->end_time) { expired = true; if (nbd_aio_in_flight (nbd) <= 0) break; } /* If we can issue another request, do so. */ while (!expired && nbd_aio_in_flight (nbd) < MAX_IN_FLIGHT) { offset = rand () % (EXPORTSIZE - buf_size); cmd = rand () & 1; if (cmd == 0) { cookie = nbd_aio_pwrite (nbd, buf, buf_size, offset, NBD_NULL_COMPLETION, 0); status->bytes_sent += buf_size; } else { cookie = nbd_aio_pread (nbd, buf, buf_size, offset, NBD_NULL_COMPLETION, 0); status->bytes_received += buf_size; } if (cookie == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } for (i = 0; i < MAX_IN_FLIGHT; i++) { if (cookies[i] == 0) { cookies[i] = cookie; break; } } if (nbd_aio_in_flight (nbd) > status->most_in_flight) status->most_in_flight = nbd_aio_in_flight (nbd); } fds[0].fd = nbd_aio_get_fd (nbd); fds[0].events = 0; fds[0].revents = 0; dir = nbd_aio_get_direction (nbd); if ((dir & LIBNBD_AIO_DIRECTION_READ) != 0) fds[0].events |= POLLIN; if ((dir & LIBNBD_AIO_DIRECTION_WRITE) != 0) fds[0].events |= POLLOUT; if (poll (fds, 1, -1) == -1) { perror ("poll"); goto error; } if ((dir & LIBNBD_AIO_DIRECTION_READ) != 0 && (fds[0].revents & POLLIN) != 0) nbd_aio_notify_read (nbd); else if ((dir & LIBNBD_AIO_DIRECTION_WRITE) != 0 && (fds[0].revents & POLLOUT) != 0) nbd_aio_notify_write (nbd); /* If a command is ready to retire, retire it. */ for (i = 0; i < MAX_IN_FLIGHT; ++i) { if (cookies[i] == 0) continue; r = nbd_aio_command_completed (nbd, cookies[i]); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } if (r) { cookies[i] = 0; status->requests++; } } } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } nbd_close (nbd); printf ("thread %zu: finished OK\n", status->i); status->status = 0; pthread_exit (status); error: fprintf (stderr, "thread %zu: failed\n", status->i); status->status = -1; pthread_exit (status); } ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/eflags.c�������������������������������������������������������������������������0000664�0001750�0001750�00000006251�13534415604�012451� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Simple end-to-end test of flags. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <libnbd.h> #ifndef value #define value true #endif #define native 2 #define none 3 /* https://stackoverflow.com/a/1489985 */ #define XNBD_FLAG_FUNCTION(f) nbd_ ## f #define NBD_FLAG_FUNCTION(f) XNBD_FLAG_FUNCTION(f) #define XSTR(x) #x #define STR(x) XSTR(x) int main (int argc, char *argv[]) { struct nbd_handle *nbd; int r, expected; char plugin_path[256]; char key_param[32]; #ifdef require if (system ("nbdkit --dump-plugin sh | grep -q " require)) { fprintf (stderr, "skipping: nbdkit lacks support for '%s'\n", require); exit (77); } #endif snprintf (plugin_path, sizeof plugin_path, "%s/eflags-plugin.sh", getenv ("srcdir") ? : "."); snprintf (key_param, sizeof key_param, "key=%s", STR (flag)); char *args[] = { "nbdkit", "-s", "--exit-with-parent", "-v", #ifdef filter filter, #endif "sh", plugin_path, key_param, #if value == true "print=", "rc=0", #elif value == false "print=", "rc=3", #elif value == native "print=native", "rc=0", #elif value == none "print=none", "rc=0", #else #error "unknown value" #endif NULL }; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #ifdef no_sr if (nbd_set_request_structured_replies (nbd, false) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #endif if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #if value == true expected = 1; #elif value == false expected = 0; #elif value == native /* can_fua=native should return true */ expected = 1; #elif value == none /* can_fua=none should return false */ expected = 0; #else #error "unknown value" #endif if ((r = NBD_FLAG_FUNCTION(flag) (nbd)) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (r != expected) { fprintf (stderr, "%s: test failed: unexpected %s flag: " "actual=%d, expected=%d\n", argv[0], STR (flag), r, expected); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/close-null.c���������������������������������������������������������������������0000664�0001750�0001750�00000002041�13562557674�013275� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Check that nbd_close (NULL) works. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { /* This should be ignored. */ nbd_close (NULL); exit (EXIT_SUCCESS); } �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/closure-lifetimes.c��������������������������������������������������������������0000664�0001750�0001750�00000011703�13525246706�014646� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test closure lifetimes. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <assert.h> #include <libnbd.h> static char *nbdkit[] = { "nbdkit", "-s", "--exit-with-parent", "-v", "null", "size=512", NULL }; static char *nbdkit_delay[] = { "nbdkit", "-s", "--exit-with-parent", "-v", "--filter=delay", "null", "size=512", "delay-read=10", NULL }; static unsigned debug_fn_called; static unsigned debug_fn_freed; static unsigned read_cb_called; static unsigned read_cb_freed; static unsigned completion_cb_called; static unsigned completion_cb_freed; static int debug_fn (void *opaque, const char *context, const char *msg) { debug_fn_called++; return 0; } static void debug_fn_free (void *opaque) { debug_fn_freed++; } static int read_cb (void *opaque, const void *subbuf, size_t count, uint64_t offset, unsigned status, int *error) { assert (!read_cb_freed); read_cb_called++; return 0; } static void read_cb_free (void *opaque) { read_cb_freed++; } static int completion_cb (void *opaque, int *error) { assert (!completion_cb_freed); completion_cb_called++; return 0; } static void completion_cb_free (void *opaque) { completion_cb_freed++; } #define NBD_ERROR \ do { \ fprintf (stderr, "%s: %s\n", argv[0], nbd_get_error ()); \ exit (EXIT_FAILURE); \ } while (0) int main (int argc, char *argv[]) { struct nbd_handle *nbd; int64_t cookie; char buf[512]; /* Check debug functions are freed when a new debug function is * registered, and when the handle is closed. */ nbd = nbd_create (); if (nbd == NULL) NBD_ERROR; nbd_set_debug_callback (nbd, (nbd_debug_callback) { .callback = debug_fn, .free = debug_fn_free }); assert (debug_fn_freed == 0); nbd_set_debug_callback (nbd, (nbd_debug_callback) { .callback = debug_fn, .free = debug_fn_free }); assert (debug_fn_freed == 1); debug_fn_freed = 0; nbd_close (nbd); assert (debug_fn_freed == 1); /* Test command callbacks are freed when the command is retired. */ nbd = nbd_create (); if (nbd == NULL) NBD_ERROR; if (nbd_connect_command (nbd, nbdkit) == -1) NBD_ERROR; cookie = nbd_aio_pread_structured (nbd, buf, sizeof buf, 0, (nbd_chunk_callback) { .callback = read_cb, .free = read_cb_free }, (nbd_completion_callback) { .callback = completion_cb, .free = completion_cb_free }, 0); if (cookie == -1) NBD_ERROR; assert (read_cb_freed == 0); assert (completion_cb_freed == 0); while (!nbd_aio_command_completed (nbd, cookie)) { if (nbd_poll (nbd, -1) == -1) NBD_ERROR; } assert (read_cb_called == 1); assert (completion_cb_called == 1); assert (read_cb_freed == 1); assert (completion_cb_freed == 1); nbd_kill_subprocess (nbd, 0); nbd_close (nbd); /* Test command callbacks are freed if the handle is closed without * running the commands. */ read_cb_called = read_cb_freed = completion_cb_called = completion_cb_freed = 0; nbd = nbd_create (); if (nbd == NULL) NBD_ERROR; if (nbd_connect_command (nbd, nbdkit_delay) == -1) NBD_ERROR; cookie = nbd_aio_pread_structured (nbd, buf, sizeof buf, 0, (nbd_chunk_callback) { .callback = read_cb, .free = read_cb_free }, (nbd_completion_callback) { .callback = completion_cb, .free = completion_cb_free }, 0); if (cookie == -1) NBD_ERROR; nbd_kill_subprocess (nbd, 0); nbd_close (nbd); assert (read_cb_freed == 1); assert (completion_cb_freed == 1); exit (EXIT_SUCCESS); } �������������������������������������������������������������libnbd-1.2.2/tests/compile-ansi-c.c�����������������������������������������������������������������0000664�0001750�0001750�00000002276�13524776043�014021� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test that (only simple) programs can be compiled by an ANSI C * compiler. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/compile.c������������������������������������������������������������������������0000664�0001750�0001750�00000002224�13524776043�012642� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Compile, open and close a handle. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/compile-cxx.cpp������������������������������������������������������������������0000664�0001750�0001750�00000002475�13524776043�014012� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test compilation with C++. */ #ifndef __cplusplus #error "this test should be compiled with a C++ compiler" #endif #include <config.h> #include <iostream> #include <cstdlib> #include <libnbd.h> using namespace std; int main () { struct nbd_handle *nbd; nbd = nbd_create (); if (nbd == NULL) { cerr << nbd_get_error () << endl; exit (EXIT_FAILURE); } cout << nbd_get_package_name (nbd) << " " << nbd_get_version (nbd) << endl; nbd_close (nbd); exit (EXIT_SUCCESS); } ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/compile-header-only.c������������������������������������������������������������0000664�0001750�0001750�00000001667�13524776043�015061� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Check that <libnbd.h> does not require any other headers. */ #include <libnbd.h> int main (int argc, char *argv[]) { return 0; } �������������������������������������������������������������������������libnbd-1.2.2/tests/connect-tcp.c��������������������������������������������������������������������0000664�0001750�0001750�00000004250�13524776043�013430� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test connecting to a TCP port. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #include <unistd.h> #include <time.h> #include <libnbd.h> #define PIDFILE "connect-tcp.pid" int main (int argc, char *argv[]) { struct nbd_handle *nbd; int port; char port_str[16]; pid_t pid; size_t i; unlink (PIDFILE); /* Pick a port at random, hope it's free. */ srand (time (NULL) + getpid ()); port = 32768 + (rand () & 32767); snprintf (port_str, sizeof port_str, "%d", port); pid = fork (); if (pid == -1) { perror ("fork"); exit (EXIT_FAILURE); } if (pid == 0) { execlp ("nbdkit", "nbdkit", "-f", "-p", port_str, "-P", PIDFILE, "--exit-with-parent", "null", NULL); perror ("nbdkit"); _exit (EXIT_FAILURE); } /* Wait for nbdkit to start listening. */ for (i = 0; i < 60; ++i) { if (access (PIDFILE, F_OK) == 0) break; sleep (1); } unlink (PIDFILE); nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_tcp (nbd, "localhost", port_str) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/connect-tls.c��������������������������������������������������������������������0000664�0001750�0001750�00000005441�13552713634�013445� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test connecting over TLS to nbdkit. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <fcntl.h> #include <unistd.h> #include <time.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; char buf[512]; int64_t actual_size; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Require TLS on the handle and fail if not available or if the * handshake fails. */ if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_set_tls_username (nbd, "alice") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #if CERTS if (nbd_set_tls_certificates (nbd, "pki") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #elif PSK if (nbd_set_tls_psk_file (nbd, "keys.psk") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #endif /* Run nbdkit as a subprocess. */ char *args[] = { "nbdkit", "-s", "--exit-with-parent", "--tls=require", "--tls-verify-peer", #if CERTS "--tls-certificates=pki", #elif PSK "--tls-psk=keys.psk", #endif "pattern", "size=1M", NULL }; if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } actual_size = nbd_get_size (nbd); if (actual_size != 1024 * 1024) { fprintf (stderr, "%s: actual size %" PRIi64 " != expected size", argv[0], actual_size); exit (EXIT_FAILURE); } if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/connect-unix.c�������������������������������������������������������������������0000664�0001750�0001750�00000004162�13571455240�013622� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test connecting over a Unix domain socket. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #include <unistd.h> #include <libnbd.h> #define PIDFILE "connect-unix.pid" int main (int argc, char *argv[]) { char socket[] = "/tmp/connect-unix-sock-XXXXXX"; struct nbd_handle *nbd; pid_t pid; size_t i; if (mkstemp (socket) == -1) { perror (socket); exit (EXIT_FAILURE); } unlink (socket); unlink (PIDFILE); pid = fork (); if (pid == -1) { perror ("fork"); exit (EXIT_FAILURE); } if (pid == 0) { execlp ("nbdkit", "nbdkit", "-f", "-U", socket, "-P", PIDFILE, "--exit-with-parent", "null", NULL); perror ("nbdkit"); _exit (EXIT_FAILURE); } /* Wait for nbdkit to start listening. */ for (i = 0; i < 60; ++i) { if (access (PIDFILE, F_OK) == 0) break; sleep (1); } unlink (PIDFILE); nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_unix (nbd, socket) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); unlink (socket); exit (EXIT_SUCCESS); } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/connect-uri.c��������������������������������������������������������������������0000664�0001750�0001750�00000004717�13560111515�013434� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test connecting over an NBD URI. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <fcntl.h> #include <unistd.h> #include <time.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; pid_t pid; size_t i; #ifdef SOCKET unlink (SOCKET); #endif unlink (PIDFILE); pid = fork (); if (pid == -1) { perror ("fork"); exit (EXIT_FAILURE); } if (pid == 0) { execlp ("nbdkit", "nbdkit", "-f", "-v", "--exit-with-parent", "-P", PIDFILE, SERVER_PARAMS, "null", NULL); perror ("nbdkit"); _exit (EXIT_FAILURE); } /* Wait for nbdkit to start listening. */ for (i = 0; i < 60; ++i) { if (access (PIDFILE, F_OK) == 0) break; sleep (1); } unlink (PIDFILE); nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_supports_uri (nbd) != 1) { fprintf (stderr, "skip: compiled without URI support\n"); exit (77); } nbd_set_uri_allow_local_file (nbd, true); if (nbd_connect_uri (nbd, URI) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Check we negotiated the right kind of connection. */ if (strncmp (URI, "nbds", 4) == 0) { if (! nbd_get_tls_negotiated (nbd)) { fprintf (stderr, "%s: failed to negotiate a TLS connection\n", argv[0]); exit (EXIT_FAILURE); } } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); #ifdef SOCKET unlink (SOCKET); #endif exit (EXIT_SUCCESS); } �������������������������������������������������libnbd-1.2.2/tests/debug.c��������������������������������������������������������������������������0000664�0001750�0001750�00000003350�13524776043�012301� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test setting and reading the debug flag. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <assert.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int r; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } r = nbd_set_debug (nbd, true); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } r = nbd_get_debug (nbd); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (r == 1); r = nbd_set_debug (nbd, false); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } r = nbd_get_debug (nbd); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (r == 0); nbd_close (nbd); exit (EXIT_SUCCESS); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/debug-environment.c��������������������������������������������������������������0000664�0001750�0001750�00000003205�13524776043�014642� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Check that LIBNBD_DEBUG=0|1 affects the debug flag. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <assert.h> #include <libnbd.h> static int get_debug_flag (void) { struct nbd_handle *nbd; int r; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } r = nbd_get_debug (nbd); if (r == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); return r; } int main (int argc, char *argv[]) { setenv ("LIBNBD_DEBUG", "1", 1); assert (get_debug_flag () == 1); setenv ("LIBNBD_DEBUG", "0", 1); assert (get_debug_flag () == 0); setenv ("LIBNBD_DEBUG", "", 1); assert (get_debug_flag () == 0); unsetenv ("LIBNBD_DEBUG"); assert (get_debug_flag () == 0); exit (EXIT_SUCCESS); } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/errors.c�������������������������������������������������������������������������0000664�0001750�0001750�00000022512�13524777766�012545� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Deliberately provoke some errors and check the error messages from * nbd_get_error etc look reasonable. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <unistd.h> #include <sys/stat.h> #include <libnbd.h> #define MAXSIZE (65 * 1024 * 1024) /* Oversize on purpose */ static char *progname; static char buf[MAXSIZE]; static void check (int experr, const char *prefix) { const char *msg = nbd_get_error (); int errnum = nbd_get_errno (); printf ("error: \"%s\"\n", msg); printf ("errno: %d (%s)\n", errnum, strerror (errnum)); if (strncmp (msg, prefix, strlen (prefix)) != 0) { fprintf (stderr, "%s: test failed: missing context prefix: %s\n", progname, msg); exit (EXIT_FAILURE); } if (errnum != experr) { fprintf (stderr, "%s: test failed: " "expected errno = %d (%s), but got %d\n", progname, experr, strerror (experr), errnum); exit (EXIT_FAILURE); } } static char script[] = "/tmp/libnbd-errors-scriptXXXXXX"; static char witness[] = "/tmp/libnbd-errors-witnessXXXXXX"; static int script_fd = -1, witness_fd = -1; static void cleanup (void) { if (script_fd != -1) { if (script_fd >= 0) close (script_fd); unlink (script); } if (witness_fd >= 0) { close (witness_fd); unlink (witness); } } int main (int argc, char *argv[]) { struct nbd_handle *nbd; /* We will connect to a custom nbdkit sh plugin which always fails * on reads (with a precise spelling required for older nbdkit), and * which delays responding to writes until a witness file no longer * exists. */ const char *cmd[] = { "nbdkit", "-s", "--exit-with-parent", "sh", script, NULL }; progname = argv[0]; if (atexit (cleanup) != 0) { perror ("atexit"); exit (EXIT_FAILURE); } if ((script_fd = mkstemp (script)) == -1) { perror ("mkstemp"); exit (EXIT_FAILURE); } if ((witness_fd = mkstemp (witness)) == -1) { perror ("mkstemp"); exit (EXIT_FAILURE); } if (dprintf (script_fd, "case $1 in\n" " get_size) echo 128m || exit 1 ;;\n" " thread_model) echo serialize_all_requests; exit 0 ;;\n" " pread) printf 'ENOMEM ' >&2; exit 1 ;;\n" " can_write) exit 0 ;;\n" " pwrite)\n" " while test -e %s; do sleep 1; done\n" " exit 0;;\n" " *) exit 2 ;;\n" "esac\n", witness) < 0) { perror ("dprintf"); exit (EXIT_FAILURE); } if (fchmod (script_fd, 0700) == -1) { perror ("fchmod"); exit (EXIT_FAILURE); } if (close (script_fd) == -1) { /* Unlinked later during atexit */ perror ("close"); exit (EXIT_FAILURE); } script_fd = -2; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Issue a connected command when not connected. */ if (nbd_pread (nbd, NULL, 0, 0, 0) != -1) { fprintf (stderr, "%s: test failed: " "nbd_pread did not fail on non-connected handle\n", argv[0]); exit (EXIT_FAILURE); } check (ENOTCONN, "nbd_pread: "); /* Request a name that is too long. */ memset (buf, 'a', 4999); buf[4999] = '\0'; if (nbd_set_export_name (nbd, buf) != -1) { fprintf (stderr, "%s: test failed: " "nbd_set_export_name did not reject large name\n", argv[0]); exit (EXIT_FAILURE); } check (ENAMETOOLONG, "nbd_set_export_name: "); /* Poll while there is no fd. */ if (nbd_aio_get_fd (nbd) != -1) { fprintf (stderr, "%s: test failed: " "nbd_aio_get_fd did not fail prior to connection\n", argv[0]); } check (EINVAL, "nbd_aio_get_fd: "); if (nbd_poll (nbd, 1000) != -1) { fprintf (stderr, "%s: test failed: " "nbd_poll did not fail prior to connection\n", argv[0]); } check (EINVAL, "nbd_poll: "); /* Connect to a working server, then try to connect again. */ if (nbd_connect_command (nbd, (char **) cmd) == -1) { fprintf (stderr, "%s: %s\n", argv[0], nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_command (nbd, (char **) cmd) != -1) { fprintf (stderr, "%s: test failed: " "nbd_connect_command did not reject repeat attempt\n", argv[0]); exit (EXIT_FAILURE); } check (EINVAL, "nbd_connect_command: "); /* Try to notify that writes are ready when we aren't blocked on POLLOUT */ if (nbd_aio_notify_write (nbd) != -1) { fprintf (stderr, "%s: test failed: " "nbd_aio_notify_write in wrong state did not fail\n", argv[0]); exit (EXIT_FAILURE); } check (EINVAL, "nbd_aio_notify_write: "); /* Check for status of a bogus cookie */ if (nbd_aio_command_completed (nbd, 0) != -1) { fprintf (stderr, "%s: test failed: " "nbd_aio_command_completed on bogus cookie did not fail\n", argv[0]); exit (EXIT_FAILURE); } check (EINVAL, "nbd_aio_command_completed: "); /* Read from an invalid offset */ if (nbd_pread (nbd, NULL, 0, -1, 0) != -1) { fprintf (stderr, "%s: test failed: " "nbd_pread did not fail with bogus offset\n", argv[0]); exit (EXIT_FAILURE); } check (EINVAL, "nbd_pread: "); /* Use unknown command flags */ if (nbd_pread (nbd, NULL, 0, 0, -1) != -1) { fprintf (stderr, "%s: test failed: " "nbd_pread did not fail with bogus flags\n", argv[0]); exit (EXIT_FAILURE); } check (EINVAL, "nbd_pread: "); /* Check that oversized requests are rejected */ if (nbd_pread (nbd, buf, MAXSIZE, 0, 0) != -1) { fprintf (stderr, "%s: test failed: " "nbd_pread did not fail with oversize request\n", argv[0]); exit (EXIT_FAILURE); } check (ERANGE, "nbd_pread: "); if (nbd_aio_pwrite (nbd, buf, MAXSIZE, 0, NBD_NULL_COMPLETION, 0) != -1) { fprintf (stderr, "%s: test failed: " "nbd_aio_pwrite did not fail with oversize request\n", argv[0]); exit (EXIT_FAILURE); } check (ERANGE, "nbd_aio_pwrite: "); /* Send a read that the nbdkit sh plugin will fail. */ if (nbd_pread (nbd, buf, 512, 0, 0) != -1) { fprintf (stderr, "%s: test failed: " "nbd_pread did not report server failure\n", argv[0]); exit (EXIT_FAILURE); } check (ENOMEM, "nbd_pread: "); /* Queue up two write commands so large that we block on POLLIN (the * first might not block when under load, such as valgrind, but the * second definitely will, since the nbdkit sh plugin reads only one * command at a time and stalls on the first), then queue multiple * disconnects. */ if (nbd_aio_pwrite (nbd, buf, 2 * 1024 * 1024, 0, NBD_NULL_COMPLETION, 0) == -1) { fprintf (stderr, "%s: %s\n", argv[0], nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_aio_pwrite (nbd, buf, 2 * 1024 * 1024, 0, NBD_NULL_COMPLETION, 0) == -1) { fprintf (stderr, "%s: %s\n", argv[0], nbd_get_error ()); exit (EXIT_FAILURE); } if ((nbd_aio_get_direction (nbd) & LIBNBD_AIO_DIRECTION_WRITE) == 0) { fprintf (stderr, "%s: test failed: " "expect to be blocked on write\n", argv[0]); exit (EXIT_FAILURE); } if (nbd_aio_disconnect (nbd, 0) == -1) { fprintf (stderr, "%s: %s\n", argv[0], nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_aio_disconnect (nbd, 0) != -1) { fprintf (stderr, "%s: test failed: " "no diagnosis that nbd_aio_disconnect prevents new commands\n", argv[0]); exit (EXIT_FAILURE); } check (EINVAL, "nbd_aio_disconnect: "); /* Unblock the nbdkit sh plugin */ if (close (witness_fd) == -1) { perror ("close"); exit (EXIT_FAILURE); } witness_fd = -1; if (unlink (witness) == -1) { perror ("unlink"); exit (EXIT_FAILURE); } /* Flush the queue (whether this one fails is a race with how fast * the server shuts down, so don't enforce status), then try to send * another command while CLOSED/DEAD */ if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s: ignoring %s\n", argv[0], nbd_get_error ()); } else fprintf (stderr, "%s: shutdown completed successfully\n", argv[0]); if (nbd_pread (nbd, NULL, 0, 0, 0) != -1) { fprintf (stderr, "%s: test failed: " "nbd_pread did not fail on non-connected handle\n", argv[0]); exit (EXIT_FAILURE); } check (EINVAL, "nbd_pread: "); nbd_close (nbd); exit (EXIT_SUCCESS); } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/export-name.c��������������������������������������������������������������������0000664�0001750�0001750�00000003252�13524776043�013453� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test setting and reading the export name. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <assert.h> #include <libnbd.h> static void check_export_name (struct nbd_handle *nbd, const char *str) { char *r; if (nbd_set_export_name (nbd, str) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } r = nbd_get_export_name (nbd); if (r == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (strcmp (str, r) == 0); free (r); } int main (int argc, char *argv[]) { struct nbd_handle *nbd; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } check_export_name (nbd, "/"); check_export_name (nbd, "123"); check_export_name (nbd, ""); nbd_close (nbd); exit (EXIT_SUCCESS); } ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/get-size.c�����������������������������������������������������������������������0000664�0001750�0001750�00000004552�13540443404�012735� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Simple test which connects to nbdkit and reads the size. * Essentially testing the newstyle handshake. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <string.h> #include <libnbd.h> #define SIZE 123456789 #define XSTR(s) #s #define STR(s) XSTR(s) int main (int argc, char *argv[]) { struct nbd_handle *nbd; int64_t r; /* -n forces newstyle even if someone is still using nbdkit < 1.3 */ char *args[] = { "nbdkit", "-s", "--exit-with-parent", "-n", "-v", "null", "size=" STR(SIZE), NULL }; const char *s; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Even ancient versions of nbdkit only supported newstyle-fixed. */ s = nbd_get_protocol (nbd); if (strcmp (s, "newstyle-fixed") != 0) { fprintf (stderr, "incorrect protocol \"%s\", expected \"newstyle-fixed\"\n", s); exit (EXIT_FAILURE); } if ((r = nbd_get_size (nbd)) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (r != SIZE) { fprintf (stderr, "%s: test failed: incorrect size, " "actual %" PRIi64 ", expected %d", argv[0], r, SIZE); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } ������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/meta-base-allocation.c�����������������������������������������������������������0000664�0001750�0001750�00000014120�13540443404�015157� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test metadata context "base:allocation". */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <inttypes.h> #include <string.h> #include <assert.h> #include <libnbd.h> static int check_extent (void *data, const char *metacontext, uint64_t offset, uint32_t *entries, size_t nr_entries, int *error); int main (int argc, char *argv[]) { struct nbd_handle *nbd; char plugin_path[256]; int id; int r; const char *s; snprintf (plugin_path, sizeof plugin_path, "%s/meta-base-allocation.sh", getenv ("srcdir") ? : "."); char *args[] = { "nbdkit", "-s", "--exit-with-parent", "-v", "sh", plugin_path, NULL }; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Negotiate metadata context "base:allocation" with the server. * This is supported in nbdkit >= 1.12. */ if (nbd_add_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Also request negotiation of a bogus context, which should not * fail here nor affect block status later. */ if (nbd_add_meta_context (nbd, "x-libnbd:nosuch") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Protocol should be "newstyle-fixed", with structured replies. */ s = nbd_get_protocol (nbd); if (strcmp (s, "newstyle-fixed") != 0) { fprintf (stderr, "incorrect protocol \"%s\", expected \"newstyle-fixed\"\n", s); exit (EXIT_FAILURE); } if ((r = nbd_get_structured_replies_negotiated (nbd)) != 1) { fprintf (stderr, "incorrect structured replies %d, expected 1\n", r); exit (EXIT_FAILURE); } switch (nbd_can_meta_context (nbd, "x-libnbd:nosuch")) { case -1: fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); case 0: break; default: fprintf (stderr, "unexpected status for nbd_can_meta_context\n"); exit (EXIT_FAILURE); } switch (nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION)) { case -1: fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); case 1: break; default: fprintf (stderr, "unexpected status for nbd_can_meta_context\n"); exit (EXIT_FAILURE); } /* Read the block status. */ id = 1; if (nbd_block_status (nbd, 65536, 0, (nbd_extent_callback) { .callback = check_extent, .user_data = &id }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } id = 2; if (nbd_block_status (nbd, 1024, 32768-512, (nbd_extent_callback) { .callback = check_extent, .user_data = &id }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } id = 3; if (nbd_block_status (nbd, 1024, 32768-512, (nbd_extent_callback) { .callback = check_extent, .user_data = &id }, LIBNBD_CMD_FLAG_REQ_ONE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } static int check_extent (void *data, const char *metacontext, uint64_t offset, uint32_t *entries, size_t nr_entries, int *error) { size_t i; int id; id = * (int *)data; printf ("extent: id=%d, metacontext=%s, offset=%" PRIu64 ", " "nr_entries=%zu, error=%d\n", id, metacontext, offset, nr_entries, *error); assert (*error == 0); if (strcmp (metacontext, LIBNBD_CONTEXT_BASE_ALLOCATION) == 0) { for (i = 0; i < nr_entries; i += 2) { printf ("\t%zu\tlength=%" PRIu32 ", status=%" PRIu32 "\n", i, entries[i], entries[i+1]); } fflush (stdout); switch (id) { case 1: assert (nr_entries == 10); assert (entries[0] == 8192); assert (entries[1] == 0); assert (entries[2] == 8192); assert (entries[3] == LIBNBD_STATE_HOLE); assert (entries[4] == 16384); assert (entries[5] == (LIBNBD_STATE_HOLE| LIBNBD_STATE_ZERO)); assert (entries[6] == 16384); assert (entries[7] == LIBNBD_STATE_ZERO); assert (entries[8] == 16384); assert (entries[9] == 0); break; case 2: assert (nr_entries == 4); assert (entries[0] == 512); assert (entries[1] == (LIBNBD_STATE_HOLE| LIBNBD_STATE_ZERO)); assert (entries[2] == 16384); assert (entries[3] == LIBNBD_STATE_ZERO); break; case 3: assert (nr_entries == 2); assert (entries[0] == 512); assert (entries[1] == (LIBNBD_STATE_HOLE| LIBNBD_STATE_ZERO)); break; default: abort (); } } else fprintf (stderr, "warning: ignored unexpected meta context %s\n", metacontext); return 0; } ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/oldstyle.c�����������������������������������������������������������������������0000664�0001750�0001750�00000013136�13554256354�013056� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test interoperability with oldstyle servers. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <string.h> #include <errno.h> #include <libnbd.h> #define SIZE 65536 #define XSTR(s) #s #define STR(s) XSTR(s) static char wbuf[512] = { 1, 2, 3, 4 }, rbuf[512]; static const char *progname; static int pread_cb (void *data, const void *buf, size_t count, uint64_t offset, unsigned status, int *error) { int *calls; calls = data; ++*calls; if (buf != rbuf || count != sizeof rbuf) { fprintf (stderr, "%s: callback called with wrong buffer\n", progname); exit (EXIT_FAILURE); } if (offset != 2 * sizeof rbuf) { fprintf (stderr, "%s: callback called with wrong offset\n", progname); exit (EXIT_FAILURE); } if (*error != 0) { fprintf (stderr, "%s: callback called with unexpected error\n", progname); exit (EXIT_FAILURE); } if (status != LIBNBD_READ_DATA) { fprintf (stderr, "%s: callback called with wrong status\n", progname); exit (EXIT_FAILURE); } if (memcmp (rbuf, wbuf, sizeof rbuf) != 0) { fprintf (stderr, "%s: DATA INTEGRITY ERROR!\n", progname); exit (EXIT_FAILURE); } if (*calls > 1) { *error = ECONNREFUSED; /* Something NBD servers can't send */ return -1; } return 0; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; int64_t r; char *args[] = { "nbdkit", "-s", "-o", "--exit-with-parent", "-v", "memory", "size=" STR(SIZE), NULL }; int calls = 0; const char *s; progname = argv[0]; /* Initial sanity check that we can't require TLS */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_supports_tls (nbd)) { if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_command (nbd, args) != -1) { fprintf (stderr, "%s\n", "expected failure"); exit (EXIT_FAILURE); } } nbd_close (nbd); /* Now for a working connection */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Protocol should be "oldstyle", with no structured replies. */ s = nbd_get_protocol (nbd); if (strcmp (s, "oldstyle") != 0) { fprintf (stderr, "incorrect protocol \"%s\", expected \"oldstyle\"\n", s); exit (EXIT_FAILURE); } if ((r = nbd_get_structured_replies_negotiated (nbd)) != 0) { fprintf (stderr, "incorrect structured replies %" PRId64 ", expected 0\n", r); exit (EXIT_FAILURE); } if ((r = nbd_get_size (nbd)) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (r != SIZE) { fprintf (stderr, "%s: test failed: incorrect size, " "actual %" PRIi64 ", expected %d", argv[0], r, SIZE); exit (EXIT_FAILURE); } /* Plain I/O */ if (nbd_pwrite (nbd, wbuf, sizeof wbuf, 2 * sizeof wbuf, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_pread (nbd, rbuf, sizeof rbuf, 2 * sizeof rbuf, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (memcmp (rbuf, wbuf, sizeof rbuf) != 0) { fprintf (stderr, "%s: DATA INTEGRITY ERROR!\n", argv[0]); exit (EXIT_FAILURE); } /* Test again for callback operation. */ memset (rbuf, 0, sizeof rbuf); if (nbd_pread_structured (nbd, rbuf, sizeof rbuf, 2 * sizeof rbuf, (nbd_chunk_callback) { .callback = pread_cb, .user_data = &calls }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (calls != 1) { fprintf (stderr, "%s: callback called wrong number of times\n", argv[0]); exit (EXIT_FAILURE); } if (memcmp (rbuf, wbuf, sizeof rbuf) != 0) { fprintf (stderr, "%s: DATA INTEGRITY ERROR!\n", argv[0]); exit (EXIT_FAILURE); } /* Also test that callback errors are reflected correctly. */ if (nbd_pread_structured (nbd, rbuf, sizeof rbuf, 2 * sizeof rbuf, (nbd_chunk_callback) { .callback = pread_cb, .user_data = &calls }, 0) != -1) { fprintf (stderr, "%s: expected failure from callback\n", argv[0]); exit (EXIT_FAILURE); } if (nbd_get_errno () != ECONNREFUSED) { fprintf (stderr, "%s: wrong errno value after failed callback\n", argv[0]); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/read-only-flag.c�����������������������������������������������������������������0000664�0001750�0001750�00000003416�13524776043�014017� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Simple end-to-end test of nbdkit -r / nbd_is_read_only. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int r; char *args[] = { "nbdkit", "-s", "--exit-with-parent", "-r", "-v", "null", NULL }; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if ((r = nbd_is_read_only (nbd)) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (r != 1) { fprintf (stderr, "%s: test failed: unexpected read-only flag\n", argv[0]); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/read-write-flag.c����������������������������������������������������������������0000664�0001750�0001750�00000003375�13524776043�014174� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Simple end-to-end test of nbdkit without -r / nbd_is_read_only. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; int r; char *args[] = { "nbdkit", "-s", "--exit-with-parent", "-v", "null", NULL }; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_command (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if ((r = nbd_is_read_only (nbd)) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (r != 0) { fprintf (stderr, "%s: test failed: unexpected read-only flag\n", argv[0]); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/server-death.c�������������������������������������������������������������������0000664�0001750�0001750�00000013026�13525246723�013603� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Deliberately disconnect while stranding commands, to check their status. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <signal.h> #include <libnbd.h> static bool trim_retired; static const char *progname; static int callback (void *ignored, int *error) { if (*error != ENOTCONN) { fprintf (stderr, "%s: unexpected error in trim callback: %s\n", progname, strerror (*error)); return 0; } trim_retired = 1; return 1; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; int err; const char *msg; char buf[512]; int64_t cookie; int r; const char *cmd[] = { "nbdkit", "-s", "--exit-with-parent", "--filter=delay", "memory", "size=1m", "delay-read=15", "delay-trim=15", NULL }; progname = argv[0]; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s: %s\n", argv[0], nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to a slow server. */ if (nbd_connect_command (nbd, (char **) cmd) == -1) { fprintf (stderr, "%s: %s\n", argv[0], nbd_get_error ()); exit (EXIT_FAILURE); } /* Issue a read and trim that should not complete yet. Set up the * trim to auto-retire via callback. */ if ((cookie = nbd_aio_pread (nbd, buf, sizeof buf, 0, NBD_NULL_COMPLETION, 0)) == -1) { fprintf (stderr, "%s: test failed: nbd_aio_pread: %s\n", argv[0], nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_aio_trim (nbd, sizeof buf, 0, (nbd_completion_callback) { .callback = callback }, 0) == -1) { fprintf (stderr, "%s: test failed: nbd_aio_trim: %s\n", argv[0], nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_aio_peek_command_completed (nbd) != 0) { fprintf (stderr, "%s: test failed: nbd_aio_peek_command_completed\n", argv[0]); exit (EXIT_FAILURE); } if (nbd_aio_command_completed (nbd, cookie) != 0) { fprintf (stderr, "%s: test failed: nbd_aio_command_completed\n", argv[0]); exit (EXIT_FAILURE); } /* Kill the server forcefully (SIGINT is not always strong enough, * as nbdkit waits for pending transactions to finish before * actually exiting), although it's a race whether our signal * arrives while nbdkit has a pending transaction. */ if (nbd_kill_subprocess (nbd, SIGKILL) == -1) { fprintf (stderr, "%s: test failed: nbd_kill_subprocess: %s\n", argv[0], nbd_get_error ()); exit (EXIT_FAILURE); } /* This part is somewhat racy depending on how fast we run before * the server process exits - depending on load and timing, nbd_poll * may succeed or fail, and we may transition to either CLOSED (the * state machine saw a clean EOF) or DEAD (the state machine saw a * stranded transaction or POLLERR). */ while ((r = nbd_poll (nbd, 1000)) == 1) if (nbd_aio_is_dead (nbd) || nbd_aio_is_closed (nbd)) break; if (!(nbd_aio_is_dead (nbd) || nbd_aio_is_closed (nbd))) { fprintf (stderr, "%s: test failed: server death not detected\n", argv[0]); exit (EXIT_FAILURE); } /* Detection of the dead server completes all remaining in-flight commands */ if (nbd_aio_in_flight (nbd) != 0) { fprintf (stderr, "%s: test failed: nbd_aio_in_flight\n", argv[0]); exit (EXIT_FAILURE); } if (nbd_aio_peek_command_completed (nbd) != cookie) { fprintf (stderr, "%s: test failed: nbd_aio_peek_command_completed\n", argv[0]); exit (EXIT_FAILURE); } if (nbd_aio_command_completed (nbd, cookie) != -1) { fprintf (stderr, "%s: test failed: nbd_aio_command_completed\n", argv[0]); exit (EXIT_FAILURE); } msg = nbd_get_error (); err = nbd_get_errno (); printf ("error: \"%s\"\n", msg); printf ("errno: %d (%s)\n", err, strerror (err)); if (err != ENOTCONN) { fprintf (stderr, "%s: test failed: unexpected errno %d (%s)\n", argv[0], err, strerror (err)); exit (EXIT_FAILURE); } /* With all commands retired, no further command should be pending */ if (!trim_retired) { fprintf (stderr, "%s: test failed: nbd_aio_trim_callback not retired\n", argv[0]); exit (EXIT_FAILURE); } if (nbd_aio_peek_command_completed (nbd) != -1) { fprintf (stderr, "%s: test failed: nbd_aio_peek_command_completed\n", argv[0]); exit (EXIT_FAILURE); } msg = nbd_get_error (); err = nbd_get_errno (); printf ("error: \"%s\"\n", msg); printf ("errno: %d (%s)\n", err, strerror (err)); if (err != EINVAL) { fprintf (stderr, "%s: test failed: unexpected errno %d (%s)\n", argv[0], err, strerror (err)); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/synch-parallel.c�����������������������������������������������������������������0000664�0001750�0001750�00000015734�13552713634�014140� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test synchronous parallel high level API requests on different * handles. There should be no shared state between the handles so * this should run at full speed (albeit with us only having a single * command per thread in flight). */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <inttypes.h> #include <string.h> #include <unistd.h> #include <errno.h> #include <assert.h> #include <pthread.h> #include <libnbd.h> #include "byte-swapping.h" /* We keep a shadow of the RAM disk so we can check integrity of the data. */ static char *ramdisk; /* This is also defined in synch-parallel.sh and checked here. */ #define EXPORTSIZE (8*1024*1024) /* How long (seconds) that the test will run for. */ #define RUN_TIME 10 /* Number of threads and connections. These don't need to be related * because there is no real parallelism going on here. */ #define NR_THREADS 8 #define NR_MULTI_CONN 4 /* Unix socket. */ static const char *unixsocket; struct thread_status { size_t i; /* Thread index, 0 .. NR_THREADS-1 */ time_t end_time; /* Threads run until this end time. */ uint64_t offset, length; /* Area assigned to this thread. */ int status; /* Return status. */ unsigned requests; /* Total number of requests made. */ uint64_t bytes_sent, bytes_received; /* Bytes sent and received by thread. */ }; static void *start_thread (void *arg); int main (int argc, char *argv[]) { pthread_t threads[NR_THREADS]; struct thread_status status[NR_THREADS]; size_t i; time_t t; int err; unsigned requests, errors; uint64_t bytes_sent, bytes_received; if (argc != 2) { fprintf (stderr, "%s socket\n", argv[0]); exit (EXIT_FAILURE); } unixsocket = argv[1]; /* Get the current time and the end time. */ time (&t); t += RUN_TIME; srand (t + getpid ()); /* Initialize the RAM disk with the initial data from * nbdkit-pattern-filter. */ ramdisk = malloc (EXPORTSIZE); if (ramdisk == NULL) { perror ("calloc"); exit (EXIT_FAILURE); } for (i = 0; i < EXPORTSIZE; i += 8) { uint64_t d = htobe64 (i); memcpy (&ramdisk[i], &d, sizeof d); } /* Start the worker threads. */ for (i = 0; i < NR_THREADS; ++i) { status[i].i = i; status[i].end_time = t; status[i].offset = i * EXPORTSIZE / NR_THREADS; status[i].length = EXPORTSIZE / NR_THREADS; status[i].status = 0; status[i].requests = 0; status[i].bytes_sent = status[i].bytes_received = 0; err = pthread_create (&threads[i], NULL, start_thread, &status[i]); if (err != 0) { errno = err; perror ("pthread_create"); exit (EXIT_FAILURE); } } /* Wait for the threads to exit. */ errors = 0; requests = 0; bytes_sent = bytes_received = 0; for (i = 0; i < NR_THREADS; ++i) { err = pthread_join (threads[i], NULL); if (err != 0) { errno = err; perror ("pthread_join"); exit (EXIT_FAILURE); } if (status[i].status != 0) { fprintf (stderr, "thread %zu failed with status %d\n", i, status[i].status); errors++; } requests += status[i].requests; bytes_sent += status[i].bytes_sent; bytes_received += status[i].bytes_received; } free (ramdisk); /* Print some stats. */ printf ("TLS: %s\n", #ifdef TLS "enabled" #else "disabled" #endif ); printf ("multi-conn: %d\n", NR_MULTI_CONN); printf ("bytes sent: %" PRIu64 " (%g Mbytes/s)\n", bytes_sent, (double) bytes_sent / RUN_TIME / 1000000); printf ("bytes received: %" PRIu64 " (%g Mbytes/s)\n", bytes_received, (double) bytes_received / RUN_TIME / 1000000); printf ("I/O requests: %u (%g IOPS)\n", requests, (double) requests / RUN_TIME); exit (errors == 0 ? EXIT_SUCCESS : EXIT_FAILURE); } static void * start_thread (void *arg) { struct thread_status *status = arg; struct nbd_handle *nbd; char buf[16384]; int cmd; uint64_t offset; time_t t; memset (buf, 0, sizeof buf); nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #ifdef TLS /* Require TLS on the handle and fail if not available or if the * handshake fails. */ if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_set_tls_username (nbd, "alice") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_set_tls_psk_file (nbd, "keys.psk") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #endif /* Connect to nbdkit. */ if (nbd_connect_unix (nbd, unixsocket) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (nbd_get_size (nbd) == EXPORTSIZE); assert (nbd_can_multi_conn (nbd) > 0); assert (nbd_is_read_only (nbd) == 0); /* Issue commands. */ while (1) { /* Run until the timer expires. */ time (&t); if (t > status->end_time) break; /* Issue a synchronous read or write command. */ offset = status->offset + (rand () % (status->length - sizeof buf)); cmd = rand () & 1; if (cmd == 0) { if (nbd_pwrite (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } status->bytes_sent += sizeof buf; memcpy (&ramdisk[offset], buf, sizeof buf); } else { if (nbd_pread (nbd, buf, sizeof buf, offset, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } status->bytes_received += sizeof buf; if (memcmp (&ramdisk[offset], buf, sizeof buf) != 0) { fprintf (stderr, "thread %zu: DATA INTEGRITY ERROR!\n", status->i); goto error; } } status->requests++; } printf ("thread %zu: finished OK\n", status->i); if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto error; } nbd_close (nbd); status->status = 0; pthread_exit (status); error: fprintf (stderr, "thread %zu: failed\n", status->i); status->status = -1; pthread_exit (status); } ������������������������������������libnbd-1.2.2/tests/version.c������������������������������������������������������������������������0000664�0001750�0001750�00000003061�13524776043�012677� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Read the package and version from the handle. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <assert.h> #include <libnbd.h> int main (int argc, char *argv[]) { struct nbd_handle *nbd; const char *s; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } s = nbd_get_package_name (nbd); if (s == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (strcmp (s, PACKAGE_NAME) == 0); s = nbd_get_version (nbd); if (s == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (strcmp (s, PACKAGE_VERSION) == 0); nbd_close (nbd); exit (EXIT_SUCCESS); } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/aio-parallel.sh������������������������������������������������������������������0000775�0001750�0001750�00000001700�13524776043�013745� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test AIO parallel data integrity. nbdkit -U - \ --filter=cow \ pattern size=64M \ --run '$VG ./aio-parallel $unixsocket' ����������������������������������������������������������������libnbd-1.2.2/tests/aio-parallel-tls.sh��������������������������������������������������������������0000775�0001750�0001750�00000001767�13524776043�014562� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test AIO parallel data integrity. nbdkit -U - --tls=require --tls-verify-peer --tls-psk=keys.psk \ --filter=cow \ pattern size=64M \ --run '$VG ./aio-parallel-tls $unixsocket' ���������libnbd-1.2.2/tests/aio-parallel-load.sh�������������������������������������������������������������0000775�0001750�0001750�00000001625�13524776043�014670� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test AIO random load. nbdkit -U - memory size=64M \ --run './aio-parallel-load $unixsocket' �����������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/aio-parallel-load-tls.sh���������������������������������������������������������0000775�0001750�0001750�00000001731�13524776043�015466� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test AIO random load. nbdkit -U - --tls=require --tls-verify-peer --tls-psk=keys.psk \ memory size=64M \ --run '$VG ./aio-parallel-load-tls $unixsocket' ���������������������������������������libnbd-1.2.2/tests/eflags-plugin.sh�����������������������������������������������������������������0000775�0001750�0001750�00000003407�13534415604�014140� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # This nbdkit plugin is used to test flags support in the libnbd # library. See tests/eflags.c key=`cat $tmpdir/key` print=`cat $tmpdir/print` rc=`cat $tmpdir/rc` if [ "$1" = "$key" ]; then if [ -n "$print" ]; then echo "$print"; fi exit "$rc" fi case "$1" in thread_model) echo parallel ;; config) case "$2" in key|print|rc) echo "$3" > $tmpdir/$2 ;; *) echo "unknown config key: $2" >&2 exit 1 ;; esac ;; get_size) echo 1M ;; pread) dd if=/dev/zero count=$3 iflag=count_bytes ;; can_write) # We have to answer this with true, otherwise the plugin will # be read-only and methods like can_trim will never be called. exit 0 ;; can_zero) # We have to default to answering this with true before # can_fast_zero has an effect. exit 0 ;; *) exit 2 ;; esac ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/make-pki.sh����������������������������������������������������������������������0000775�0001750�0001750�00000006366�13524776043�013116� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # libnbd # Copyright (C) 2017-2019 Red Hat Inc. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # # * Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # * Neither the name of Red Hat nor the names of its contributors may be # used to endorse or promote products derived from this software without # specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. set -e # This creates the PKI files for the TLS tests. if [ -z "$SRCDIR" ] || [ ! -f "$SRCDIR/connect-tls.c" ]; then echo "$0: script is being run from the wrong directory." echo "Don't try to run this script by hand." exit 1 fi if [ -z "$CERTTOOL" ]; then echo "$0: \$CERTTOOL was not set." echo "Don't try to run this script by hand." exit 1 fi if [ -z "$1" ]; then echo "$0: Output directory not set." echo "Don't try to run this script by hand." exit 1 fi mkdir -p $1 # Create the CA. $CERTTOOL --generate-privkey > $1/ca-key.pem chmod 0600 $1/ca-key.pem cat > $1/ca.info <<EOF cn = Test ca cert_signing_key EOF $CERTTOOL --generate-self-signed \ --load-privkey $1/ca-key.pem \ --template $1/ca.info \ --outfile $1/ca-cert.pem # Create the server certificate and key. $CERTTOOL --generate-privkey > $1/server-key.pem chmod 0600 $1/server-key.pem cat > $1/server.info <<EOF organization = Test cn = localhost tls_www_server encryption_key signing_key EOF $CERTTOOL --generate-certificate \ --load-ca-certificate $1/ca-cert.pem \ --load-ca-privkey $1/ca-key.pem \ --load-privkey $1/server-key.pem \ --template $1/server.info \ --outfile $1/server-cert.pem # Create a client certificate and key. $CERTTOOL --generate-privkey > $1/client-key.pem chmod 0600 $1/client-key.pem cat > $1/client.info <<EOF country = US state = New York locality = New York organization = Test cn = localhost tls_www_client encryption_key signing_key EOF $CERTTOOL --generate-certificate \ --load-ca-certificate $1/ca-cert.pem \ --load-ca-privkey $1/ca-key.pem \ --load-privkey $1/client-key.pem \ --template $1/client.info \ --outfile $1/client-cert.pem ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/meta-base-allocation.sh����������������������������������������������������������0000775�0001750�0001750�00000002476�13524776043�015377� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # This is used to test metadata context "base:allocation". # See tests/meta-base-allocation.c. case "$1" in thread_model) echo parallel ;; get_size) echo 65536 ;; pread) dd if=/dev/zero count=$3 iflag=count_bytes ;; can_extents) exit 0 ;; extents) echo 0 8192 echo 8192 8192 hole echo 16384 16384 hole,zero echo 32768 16384 zero echo 49152 16384 ;; *) exit 2 ;; esac ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/tests/synch-parallel.sh����������������������������������������������������������������0000775�0001750�0001750�00000001722�13524776043�014325� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test synchronous parallel high level API requests. nbdkit -U - \ --filter=cow \ pattern size=8M \ --run '$VG ./synch-parallel $unixsocket' ����������������������������������������������libnbd-1.2.2/tests/synch-parallel-tls.sh������������������������������������������������������������0000775�0001750�0001750�00000002005�13524776043�015120� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test synchronous parallel high level API requests. nbdkit -U - --tls=require --tls-verify-peer --tls-psk=keys.psk \ --filter=cow \ pattern size=8M \ --run './synch-parallel-tls $unixsocket' ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/test-driver����������������������������������������������������������������������������0000755�0001750�0001750�00000011042�13465556606�012103� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#! /bin/sh # test-driver - basic testsuite driver script. scriptversion=2018-03-07.03; # UTC # Copyright (C) 2011-2018 Free Software Foundation, Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <https://www.gnu.org/licenses/>. # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # This file is maintained in Automake, please report # bugs to <bug-automake@gnu.org> or send patches to # <automake-patches@gnu.org>. # Make unconditional expansion of undefined variables an error. This # helps a lot in preventing typo-related bugs. set -u usage_error () { echo "$0: $*" >&2 print_usage >&2 exit 2 } print_usage () { cat <<END Usage: test-driver --test-name=NAME --log-file=PATH --trs-file=PATH [--expect-failure={yes|no}] [--color-tests={yes|no}] [--enable-hard-errors={yes|no}] [--] TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS] The '--test-name', '--log-file' and '--trs-file' options are mandatory. END } test_name= # Used for reporting. log_file= # Where to save the output of the test script. trs_file= # Where to save the metadata of the test run. expect_failure=no color_tests=no enable_hard_errors=yes while test $# -gt 0; do case $1 in --help) print_usage; exit $?;; --version) echo "test-driver $scriptversion"; exit $?;; --test-name) test_name=$2; shift;; --log-file) log_file=$2; shift;; --trs-file) trs_file=$2; shift;; --color-tests) color_tests=$2; shift;; --expect-failure) expect_failure=$2; shift;; --enable-hard-errors) enable_hard_errors=$2; shift;; --) shift; break;; -*) usage_error "invalid option: '$1'";; *) break;; esac shift done missing_opts= test x"$test_name" = x && missing_opts="$missing_opts --test-name" test x"$log_file" = x && missing_opts="$missing_opts --log-file" test x"$trs_file" = x && missing_opts="$missing_opts --trs-file" if test x"$missing_opts" != x; then usage_error "the following mandatory options are missing:$missing_opts" fi if test $# -eq 0; then usage_error "missing argument" fi if test $color_tests = yes; then # Keep this in sync with 'lib/am/check.am:$(am__tty_colors)'. red='' # Red. grn='' # Green. lgn='' # Light green. blu='' # Blue. mgn='' # Magenta. std='' # No color. else red= grn= lgn= blu= mgn= std= fi do_exit='rm -f $log_file $trs_file; (exit $st); exit $st' trap "st=129; $do_exit" 1 trap "st=130; $do_exit" 2 trap "st=141; $do_exit" 13 trap "st=143; $do_exit" 15 # Test script is run here. "$@" >$log_file 2>&1 estatus=$? if test $enable_hard_errors = no && test $estatus -eq 99; then tweaked_estatus=1 else tweaked_estatus=$estatus fi case $tweaked_estatus:$expect_failure in 0:yes) col=$red res=XPASS recheck=yes gcopy=yes;; 0:*) col=$grn res=PASS recheck=no gcopy=no;; 77:*) col=$blu res=SKIP recheck=no gcopy=yes;; 99:*) col=$mgn res=ERROR recheck=yes gcopy=yes;; *:yes) col=$lgn res=XFAIL recheck=no gcopy=yes;; *:*) col=$red res=FAIL recheck=yes gcopy=yes;; esac # Report the test outcome and exit status in the logs, so that one can # know whether the test passed or failed simply by looking at the '.log' # file, without the need of also peaking into the corresponding '.trs' # file (automake bug#11814). echo "$res $test_name (exit status: $estatus)" >>$log_file # Report outcome to console. echo "${col}${res}${std}: $test_name" # Register the test result, and other relevant metadata. echo ":test-result: $res" > $trs_file echo ":global-test-result: $res" >> $trs_file echo ":recheck: $recheck" >> $trs_file echo ":copy-in-global-log: $gcopy" >> $trs_file # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC0" # time-stamp-end: "; # UTC" # End: ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/��������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�011310� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�011553� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/010-import.py�����������������������������������������������������������������0000664�0001750�0001750�00000001410�13524776043�013646� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/100-handle.py�����������������������������������������������������������������0000664�0001750�0001750�00000001435�13524776043�013576� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd h = nbd.NBD () �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/200-connect-command.py��������������������������������������������������������0000664�0001750�0001750�00000001546�13524776043�015414� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd h = nbd.NBD () h.connect_command (["nbdkit", "-s", "--exit-with-parent", "-v", "null"]) ����������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/300-get-size.py���������������������������������������������������������������0000664�0001750�0001750�00000001726�13524776043�014077� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd expected = 1048576 h = nbd.NBD () h.connect_command (["nbdkit", "-s", "--exit-with-parent", "-v", "null", "size=%d" % expected]) actual = h.get_size () assert actual == expected ������������������������������������������libnbd-1.2.2/python/t/400-pread.py������������������������������������������������������������������0000664�0001750�0001750�00000005577�13524776043�013454� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd h = nbd.NBD () h.connect_command (["nbdkit", "-s", "--exit-with-parent", "-v", "pattern", "size=512"]) buf = h.pread (512, 0) print ("%r" % buf) assert buf == b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00 \x00\x00\x00\x00\x00\x00\x00(\x00\x00\x00\x00\x00\x00\x000\x00\x00\x00\x00\x00\x00\x008\x00\x00\x00\x00\x00\x00\x00@\x00\x00\x00\x00\x00\x00\x00H\x00\x00\x00\x00\x00\x00\x00P\x00\x00\x00\x00\x00\x00\x00X\x00\x00\x00\x00\x00\x00\x00`\x00\x00\x00\x00\x00\x00\x00h\x00\x00\x00\x00\x00\x00\x00p\x00\x00\x00\x00\x00\x00\x00x\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x88\x00\x00\x00\x00\x00\x00\x00\x90\x00\x00\x00\x00\x00\x00\x00\x98\x00\x00\x00\x00\x00\x00\x00\xa0\x00\x00\x00\x00\x00\x00\x00\xa8\x00\x00\x00\x00\x00\x00\x00\xb0\x00\x00\x00\x00\x00\x00\x00\xb8\x00\x00\x00\x00\x00\x00\x00\xc0\x00\x00\x00\x00\x00\x00\x00\xc8\x00\x00\x00\x00\x00\x00\x00\xd0\x00\x00\x00\x00\x00\x00\x00\xd8\x00\x00\x00\x00\x00\x00\x00\xe0\x00\x00\x00\x00\x00\x00\x00\xe8\x00\x00\x00\x00\x00\x00\x00\xf0\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x01\x08\x00\x00\x00\x00\x00\x00\x01\x10\x00\x00\x00\x00\x00\x00\x01\x18\x00\x00\x00\x00\x00\x00\x01 \x00\x00\x00\x00\x00\x00\x01(\x00\x00\x00\x00\x00\x00\x010\x00\x00\x00\x00\x00\x00\x018\x00\x00\x00\x00\x00\x00\x01@\x00\x00\x00\x00\x00\x00\x01H\x00\x00\x00\x00\x00\x00\x01P\x00\x00\x00\x00\x00\x00\x01X\x00\x00\x00\x00\x00\x00\x01`\x00\x00\x00\x00\x00\x00\x01h\x00\x00\x00\x00\x00\x00\x01p\x00\x00\x00\x00\x00\x00\x01x\x00\x00\x00\x00\x00\x00\x01\x80\x00\x00\x00\x00\x00\x00\x01\x88\x00\x00\x00\x00\x00\x00\x01\x90\x00\x00\x00\x00\x00\x00\x01\x98\x00\x00\x00\x00\x00\x00\x01\xa0\x00\x00\x00\x00\x00\x00\x01\xa8\x00\x00\x00\x00\x00\x00\x01\xb0\x00\x00\x00\x00\x00\x00\x01\xb8\x00\x00\x00\x00\x00\x00\x01\xc0\x00\x00\x00\x00\x00\x00\x01\xc8\x00\x00\x00\x00\x00\x00\x01\xd0\x00\x00\x00\x00\x00\x00\x01\xd8\x00\x00\x00\x00\x00\x00\x01\xe0\x00\x00\x00\x00\x00\x00\x01\xe8\x00\x00\x00\x00\x00\x00\x01\xf0\x00\x00\x00\x00\x00\x00\x01\xf8' ���������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/405-pread-structured.py�������������������������������������������������������0000664�0001750�0001750�00000007042�13525204611�015634� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd import errno h = nbd.NBD () h.connect_command (["nbdkit", "-s", "--exit-with-parent", "-v", "pattern", "size=512"]) expected = b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00 \x00\x00\x00\x00\x00\x00\x00(\x00\x00\x00\x00\x00\x00\x000\x00\x00\x00\x00\x00\x00\x008\x00\x00\x00\x00\x00\x00\x00@\x00\x00\x00\x00\x00\x00\x00H\x00\x00\x00\x00\x00\x00\x00P\x00\x00\x00\x00\x00\x00\x00X\x00\x00\x00\x00\x00\x00\x00`\x00\x00\x00\x00\x00\x00\x00h\x00\x00\x00\x00\x00\x00\x00p\x00\x00\x00\x00\x00\x00\x00x\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x88\x00\x00\x00\x00\x00\x00\x00\x90\x00\x00\x00\x00\x00\x00\x00\x98\x00\x00\x00\x00\x00\x00\x00\xa0\x00\x00\x00\x00\x00\x00\x00\xa8\x00\x00\x00\x00\x00\x00\x00\xb0\x00\x00\x00\x00\x00\x00\x00\xb8\x00\x00\x00\x00\x00\x00\x00\xc0\x00\x00\x00\x00\x00\x00\x00\xc8\x00\x00\x00\x00\x00\x00\x00\xd0\x00\x00\x00\x00\x00\x00\x00\xd8\x00\x00\x00\x00\x00\x00\x00\xe0\x00\x00\x00\x00\x00\x00\x00\xe8\x00\x00\x00\x00\x00\x00\x00\xf0\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x01\x08\x00\x00\x00\x00\x00\x00\x01\x10\x00\x00\x00\x00\x00\x00\x01\x18\x00\x00\x00\x00\x00\x00\x01 \x00\x00\x00\x00\x00\x00\x01(\x00\x00\x00\x00\x00\x00\x010\x00\x00\x00\x00\x00\x00\x018\x00\x00\x00\x00\x00\x00\x01@\x00\x00\x00\x00\x00\x00\x01H\x00\x00\x00\x00\x00\x00\x01P\x00\x00\x00\x00\x00\x00\x01X\x00\x00\x00\x00\x00\x00\x01`\x00\x00\x00\x00\x00\x00\x01h\x00\x00\x00\x00\x00\x00\x01p\x00\x00\x00\x00\x00\x00\x01x\x00\x00\x00\x00\x00\x00\x01\x80\x00\x00\x00\x00\x00\x00\x01\x88\x00\x00\x00\x00\x00\x00\x01\x90\x00\x00\x00\x00\x00\x00\x01\x98\x00\x00\x00\x00\x00\x00\x01\xa0\x00\x00\x00\x00\x00\x00\x01\xa8\x00\x00\x00\x00\x00\x00\x01\xb0\x00\x00\x00\x00\x00\x00\x01\xb8\x00\x00\x00\x00\x00\x00\x01\xc0\x00\x00\x00\x00\x00\x00\x01\xc8\x00\x00\x00\x00\x00\x00\x01\xd0\x00\x00\x00\x00\x00\x00\x01\xd8\x00\x00\x00\x00\x00\x00\x01\xe0\x00\x00\x00\x00\x00\x00\x01\xe8\x00\x00\x00\x00\x00\x00\x01\xf0\x00\x00\x00\x00\x00\x00\x01\xf8' def f (user_data, buf2, offset, s, err): assert err.value == 0 err.value = errno.EPROTO if user_data != 42: raise ValueError('unexpected user_data') assert buf2 == expected assert offset == 0 assert s == nbd.READ_DATA buf = h.pread_structured (512, 0, lambda *args: f (42, *args)) print ("%r" % buf) assert buf == expected buf = h.pread_structured (512, 0, lambda *args: f (42, *args), nbd.CMD_FLAG_DF) print ("%r" % buf) assert buf == expected try: buf = h.pread_structured (512, 0, lambda *args: f (43, *args), nbd.CMD_FLAG_DF) assert False except nbd.Error as ex: assert ex.errnum == errno.EPROTO ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/410-pwrite.py�����������������������������������������������������������������0000664�0001750�0001750�00000002345�13524776043�013662� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import os import nbd buf1 = bytearray (512) buf1[10] = 1 buf1[510] = 0x55 buf1[511] = 0xAA datafile = "410-pwrite.data" with open (datafile, "wb") as f: f.truncate (512) h = nbd.NBD () h.connect_command (["nbdkit", "-s", "--exit-with-parent", "-v", "file", datafile]) h.pwrite (buf1, 0, nbd.CMD_FLAG_FUA) buf2 = h.pread (512, 0) assert buf1 == buf2 with open (datafile, "rb") as f: content = f.read () assert buf1 == content os.unlink (datafile) �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/460-block-status.py�����������������������������������������������������������0000664�0001750�0001750�00000003314�13524776043�014765� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import os import nbd script = ("%s/../tests/meta-base-allocation.sh" % os.getenv ("srcdir", ".")) h = nbd.NBD () h.add_meta_context ("base:allocation") h.connect_command (["nbdkit", "-s", "--exit-with-parent", "-v", "sh", script]) entries = [] def f (user_data, metacontext, offset, e, err): global entries assert user_data == 42 assert err.value == 0 if metacontext != "base:allocation": return entries = e h.block_status (65536, 0, lambda *args: f (42, *args)) assert entries == [ 8192, 0, 8192, 1, 16384, 3, 16384, 2, 16384, 0] h.block_status (1024, 32256, lambda *args: f (42, *args)) print ("entries = %r" % entries) assert entries == [ 512, 3, 16384, 2] h.block_status (1024, 32256, lambda *args: f (42, *args), nbd.CMD_FLAG_REQ_ONE) print ("entries = %r" % entries) assert entries == [ 512, 3] ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/500-aio-pread.py��������������������������������������������������������������0000664�0001750�0001750�00000005766�13524776043�014223� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd h = nbd.NBD () h.connect_command (["nbdkit", "-s", "--exit-with-parent", "-v", "pattern", "size=512"]) buf = nbd.Buffer (512) cookie = h.aio_pread (buf, 0) while not (h.aio_command_completed (cookie)): h.poll (-1) buf = buf.to_bytearray () print ("%r" % buf) assert buf == b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00 \x00\x00\x00\x00\x00\x00\x00(\x00\x00\x00\x00\x00\x00\x000\x00\x00\x00\x00\x00\x00\x008\x00\x00\x00\x00\x00\x00\x00@\x00\x00\x00\x00\x00\x00\x00H\x00\x00\x00\x00\x00\x00\x00P\x00\x00\x00\x00\x00\x00\x00X\x00\x00\x00\x00\x00\x00\x00`\x00\x00\x00\x00\x00\x00\x00h\x00\x00\x00\x00\x00\x00\x00p\x00\x00\x00\x00\x00\x00\x00x\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x88\x00\x00\x00\x00\x00\x00\x00\x90\x00\x00\x00\x00\x00\x00\x00\x98\x00\x00\x00\x00\x00\x00\x00\xa0\x00\x00\x00\x00\x00\x00\x00\xa8\x00\x00\x00\x00\x00\x00\x00\xb0\x00\x00\x00\x00\x00\x00\x00\xb8\x00\x00\x00\x00\x00\x00\x00\xc0\x00\x00\x00\x00\x00\x00\x00\xc8\x00\x00\x00\x00\x00\x00\x00\xd0\x00\x00\x00\x00\x00\x00\x00\xd8\x00\x00\x00\x00\x00\x00\x00\xe0\x00\x00\x00\x00\x00\x00\x00\xe8\x00\x00\x00\x00\x00\x00\x00\xf0\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x01\x08\x00\x00\x00\x00\x00\x00\x01\x10\x00\x00\x00\x00\x00\x00\x01\x18\x00\x00\x00\x00\x00\x00\x01 \x00\x00\x00\x00\x00\x00\x01(\x00\x00\x00\x00\x00\x00\x010\x00\x00\x00\x00\x00\x00\x018\x00\x00\x00\x00\x00\x00\x01@\x00\x00\x00\x00\x00\x00\x01H\x00\x00\x00\x00\x00\x00\x01P\x00\x00\x00\x00\x00\x00\x01X\x00\x00\x00\x00\x00\x00\x01`\x00\x00\x00\x00\x00\x00\x01h\x00\x00\x00\x00\x00\x00\x01p\x00\x00\x00\x00\x00\x00\x01x\x00\x00\x00\x00\x00\x00\x01\x80\x00\x00\x00\x00\x00\x00\x01\x88\x00\x00\x00\x00\x00\x00\x01\x90\x00\x00\x00\x00\x00\x00\x01\x98\x00\x00\x00\x00\x00\x00\x01\xa0\x00\x00\x00\x00\x00\x00\x01\xa8\x00\x00\x00\x00\x00\x00\x01\xb0\x00\x00\x00\x00\x00\x00\x01\xb8\x00\x00\x00\x00\x00\x00\x01\xc0\x00\x00\x00\x00\x00\x00\x01\xc8\x00\x00\x00\x00\x00\x00\x01\xd0\x00\x00\x00\x00\x00\x00\x01\xd8\x00\x00\x00\x00\x00\x00\x01\xe0\x00\x00\x00\x00\x00\x00\x01\xe8\x00\x00\x00\x00\x00\x00\x01\xf0\x00\x00\x00\x00\x00\x00\x01\xf8' ����������libnbd-1.2.2/python/t/505-aio-pread-callback.py�����������������������������������������������������0000664�0001750�0001750�00000011724�13525204611�015735� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd import errno h = nbd.NBD () h.connect_command (["nbdkit", "-s", "--exit-with-parent", "-v", "pattern", "size=512"]) expected = b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00 \x00\x00\x00\x00\x00\x00\x00(\x00\x00\x00\x00\x00\x00\x000\x00\x00\x00\x00\x00\x00\x008\x00\x00\x00\x00\x00\x00\x00@\x00\x00\x00\x00\x00\x00\x00H\x00\x00\x00\x00\x00\x00\x00P\x00\x00\x00\x00\x00\x00\x00X\x00\x00\x00\x00\x00\x00\x00`\x00\x00\x00\x00\x00\x00\x00h\x00\x00\x00\x00\x00\x00\x00p\x00\x00\x00\x00\x00\x00\x00x\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x88\x00\x00\x00\x00\x00\x00\x00\x90\x00\x00\x00\x00\x00\x00\x00\x98\x00\x00\x00\x00\x00\x00\x00\xa0\x00\x00\x00\x00\x00\x00\x00\xa8\x00\x00\x00\x00\x00\x00\x00\xb0\x00\x00\x00\x00\x00\x00\x00\xb8\x00\x00\x00\x00\x00\x00\x00\xc0\x00\x00\x00\x00\x00\x00\x00\xc8\x00\x00\x00\x00\x00\x00\x00\xd0\x00\x00\x00\x00\x00\x00\x00\xd8\x00\x00\x00\x00\x00\x00\x00\xe0\x00\x00\x00\x00\x00\x00\x00\xe8\x00\x00\x00\x00\x00\x00\x00\xf0\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x01\x08\x00\x00\x00\x00\x00\x00\x01\x10\x00\x00\x00\x00\x00\x00\x01\x18\x00\x00\x00\x00\x00\x00\x01 \x00\x00\x00\x00\x00\x00\x01(\x00\x00\x00\x00\x00\x00\x010\x00\x00\x00\x00\x00\x00\x018\x00\x00\x00\x00\x00\x00\x01@\x00\x00\x00\x00\x00\x00\x01H\x00\x00\x00\x00\x00\x00\x01P\x00\x00\x00\x00\x00\x00\x01X\x00\x00\x00\x00\x00\x00\x01`\x00\x00\x00\x00\x00\x00\x01h\x00\x00\x00\x00\x00\x00\x01p\x00\x00\x00\x00\x00\x00\x01x\x00\x00\x00\x00\x00\x00\x01\x80\x00\x00\x00\x00\x00\x00\x01\x88\x00\x00\x00\x00\x00\x00\x01\x90\x00\x00\x00\x00\x00\x00\x01\x98\x00\x00\x00\x00\x00\x00\x01\xa0\x00\x00\x00\x00\x00\x00\x01\xa8\x00\x00\x00\x00\x00\x00\x01\xb0\x00\x00\x00\x00\x00\x00\x01\xb8\x00\x00\x00\x00\x00\x00\x01\xc0\x00\x00\x00\x00\x00\x00\x01\xc8\x00\x00\x00\x00\x00\x00\x01\xd0\x00\x00\x00\x00\x00\x00\x01\xd8\x00\x00\x00\x00\x00\x00\x01\xe0\x00\x00\x00\x00\x00\x00\x01\xe8\x00\x00\x00\x00\x00\x00\x01\xf0\x00\x00\x00\x00\x00\x00\x01\xf8' def chunk (user_data, buf2, offset, s, err): print ("in chunk, user_data %d" % user_data) assert err.value == 0 err.value = errno.EPROTO if user_data != 42: raise ValueError('unexpected user_data') assert buf2 == expected assert offset == 0 assert s == nbd.READ_DATA def callback (user_data, err): print ("in callback, user_data %d,%d" % user_data) if user_data[0] == 42: assert err.value == 0 else: assert err.value == errno.EPROTO err.value = errno.ENOMEM if user_data[1] != 42: raise ValueError('unexpected user_data') # First try: succeed in both callbacks buf = nbd.Buffer (512) cookie = h.aio_pread_structured (buf, 0, lambda *args: chunk (42, *args), lambda *args: callback ((42, 42), *args)) while not (h.aio_command_completed (cookie)): h.poll (-1) buf = buf.to_bytearray () print ("%r" % buf) assert buf == expected # Second try: fail only during callback buf = nbd.Buffer (512) cookie = h.aio_pread_structured (buf, 0, lambda *args: chunk (42, *args), lambda *args: callback ((42, 43), *args)) try: while not (h.aio_command_completed (cookie)): h.poll (-1) assert False except nbd.Error as ex: assert ex.errnum == errno.ENOMEM # Third try: fail during both buf = nbd.Buffer (512) cookie = h.aio_pread_structured (buf, 0, lambda *args: chunk (43, *args), lambda *args: callback ((43, 43), *args)) try: while not (h.aio_command_completed (cookie)): h.poll (-1) assert False except nbd.Error as ex: assert ex.errnum == errno.ENOMEM # Fourth try: fail only during chunk buf = nbd.Buffer (512) cookie = h.aio_pread_structured (buf, 0, lambda *args: chunk (43, *args), lambda *args: callback ((43, 42), *args)) try: while not (h.aio_command_completed (cookie)): h.poll (-1) assert False except nbd.Error as ex: assert ex.errnum == errno.EPROTO ��������������������������������������������libnbd-1.2.2/python/t/510-aio-pwrite.py�������������������������������������������������������������0000664�0001750�0001750�00000002706�13524776043�014432� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import os import nbd buf = bytearray (512) buf[10] = 1 buf[510] = 0x55 buf[511] = 0xAA datafile = "510-pwrite.data" with open (datafile, "wb") as f: f.truncate (512) h = nbd.NBD () h.connect_command (["nbdkit", "-s", "--exit-with-parent", "-v", "file", datafile]) buf1 = nbd.Buffer.from_bytearray (buf) cookie = h.aio_pwrite (buf1, 0, flags=nbd.CMD_FLAG_FUA) while not (h.aio_command_completed (cookie)): h.poll (-1) buf2 = nbd.Buffer (512) cookie = h.aio_pread (buf2, 0) while not (h.aio_command_completed (cookie)): h.poll (-1) assert buf == buf2.to_bytearray () with open (datafile, "rb") as f: content = f.read () assert buf == content os.unlink (datafile) ����������������������������������������������������������libnbd-1.2.2/python/t/590-aio-copy.py���������������������������������������������������������������0000664�0001750�0001750�00000011021�13525224120�014051� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import select import nbd disk_size = 512 * 1024 * 1024 bs = 65536 max_reads_in_flight = 16 bytes_read = 0 bytes_written = 0 def asynch_copy (src, dst): size = src.get_size () # This is our reading position in the source. soff = 0 # This callback is called when any pread from the source # has completed. writes = [] def read_completed (buf, offset, error): global bytes_read bytes_read += buf.size () wr = (buf, offset) writes.append (wr) # By returning 1 here we auto-retire the pread command. return 1 # This callback is called when any pwrite to the destination # has completed. def write_completed (buf, error): global bytes_written bytes_written += buf.size () # By returning 1 here we auto-retire the pwrite command. return 1 # The main loop which runs until we have finished reading and # there are no more commands in flight. while soff < size or dst.aio_in_flight () > 0: # If we're able to submit more reads from the source # then do so now. if soff < size and src.aio_in_flight () < max_reads_in_flight: bufsize = min (bs, size - soff) buf = nbd.Buffer (bufsize) # NB: Python lambdas are BROKEN. # https://stackoverflow.com/questions/2295290 src.aio_pread (buf, soff, lambda err, buf=buf, soff=soff: read_completed (buf, soff, err)) soff += bufsize # If there are any write commands waiting to be issued # to the destination, send them now. for buf, offset in writes: # See above link about broken Python lambdas. dst.aio_pwrite (buf, offset, lambda err, buf=buf: write_completed (buf, err)) writes = [] poll = select.poll () sfd = src.aio_get_fd () dfd = dst.aio_get_fd () sevents = 0 devents = 0 if src.aio_get_direction () & nbd.AIO_DIRECTION_READ: sevents += select.POLLIN if src.aio_get_direction () & nbd.AIO_DIRECTION_WRITE: sevents += select.POLLOUT if dst.aio_get_direction () & nbd.AIO_DIRECTION_READ: devents += select.POLLIN if dst.aio_get_direction () & nbd.AIO_DIRECTION_WRITE: devents += select.POLLOUT poll.register (sfd, sevents) poll.register (dfd, devents) for (fd, revents) in poll.poll (): # The direction of each handle can change since we # slept in the select. if fd == sfd and revents & select.POLLIN and \ src.aio_get_direction () & nbd.AIO_DIRECTION_READ: src.aio_notify_read () elif fd == sfd and revents & select.POLLOUT and \ src.aio_get_direction () & nbd.AIO_DIRECTION_WRITE: src.aio_notify_write () elif fd == dfd and revents & select.POLLIN and \ dst.aio_get_direction () & nbd.AIO_DIRECTION_READ: dst.aio_notify_read () elif fd == dfd and revents & select.POLLOUT and \ dst.aio_get_direction () & nbd.AIO_DIRECTION_WRITE: dst.aio_notify_write () src = nbd.NBD () src.set_handle_name ("src") dst = nbd.NBD () dst.set_handle_name ("dst") src.connect_command (["nbdkit", "-s", "--exit-with-parent", "-r", "pattern", "size=%d" % disk_size]) dst.connect_command (["nbdkit", "-s", "--exit-with-parent", "memory", "size=%d" % disk_size]) asynch_copy (src, dst) print ("bytes read: %d written: %d size: %d" % (bytes_read, bytes_written, disk_size)) assert bytes_read == disk_size assert bytes_written == disk_size ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/600-debug-callback.py���������������������������������������������������������0000664�0001750�0001750�00000002047�13524776043�015170� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd h = nbd.NBD () messages = [] def f(id, context, msg): global messages assert id == 42 messages.append (msg) h.set_debug_callback (lambda *args: f (42, *args)) h.connect_command (["nbdkit", "-s", "--exit-with-parent", "null"]) h.shutdown () print ("%r" % messages) �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/t/610-exception.py��������������������������������������������������������������0000664�0001750�0001750�00000002147�13524776043�014350� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# libnbd Python bindings # Copyright (C) 2010-2019 Red Hat Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA import nbd h = nbd.NBD () try: # This will always throw an exception because the handle is not # connected. h.pread (0, 0) except nbd.Error as ex: print ("string = %s" % ex.string) print ("errno = %s" % ex.errno) print ("errnum = %d" % ex.errnum) exit (0) # If we reach here then we didn't catch the exception above. exit (1) �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/Makefile.am���������������������������������������������������������������������0000664�0001750�0001750�00000003222�13525266031�013250� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk CLEANFILES += *.pyc t/*~ clean-local: -rm -rf __pycache__ generator_built = \ libnbdmod.c \ methods.c \ methods.h \ nbd.py EXTRA_DIST = \ $(generator_built) \ nbdsh.py \ $(srcdir)/t/*.py if HAVE_PYTHON pythondir = $(PYTHON_INSTALLDIR) python_DATA = nbd.py nbdsh.py python_LTLIBRARIES = libnbdmod.la BUILT_SOURCES = $(generator_built) libnbdmod_la_SOURCES = \ handle.c \ libnbdmod.c \ methods.c \ methods.h \ utils.c libnbdmod_la_CPPFLAGS = \ $(PYTHON_CFLAGS) \ -I$(top_srcdir)/include libnbdmod_la_CFLAGS = \ $(WARNINGS_CFLAGS) libnbdmod_la_LIBADD = \ $(top_builddir)/lib/libnbd.la libnbdmod_la_LDFLAGS = \ -avoid-version -shared -module -shrext $(PYTHON_EXT_SUFFIX) if HAVE_NBDKIT TESTS_ENVIRONMENT = LIBNBD_DEBUG=1 LOG_COMPILER = $(top_builddir)/run TESTS = run-python-tests endif HAVE_NBDKIT endif HAVE_PYTHON ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/Makefile.in���������������������������������������������������������������������0000664�0001750�0001750�00000131500�13616543374�013273� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# Makefile.in generated by automake 1.16.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2018 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # subdir-rules.mk is included only in subdirectories. # common-rules.mk is included in every Makefile.am. # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA set -e shopt -s nullglob export srcdir=@srcdir@ for f in @srcdir@/t/*.py; do basename "$f" $PYTHON "$f" done ���������������������������������������������������������������������������������������������������libnbd-1.2.2/python/handle.c������������������������������������������������������������������������0000664�0001750�0001750�00000011444�13525765762�012637� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* These are the hand-written Python module bindings. The majority of * bindings are generated, see python/methods.c */ #include <config.h> #define PY_SSIZE_T_CLEAN 1 #include <Python.h> #if PY_MAJOR_VERSION == 2 #error "These bindings will not work with Python 2. Recompile using Python 3 or use ./configure --disable-python." #endif #include <stdio.h> #include <stdlib.h> #include <assert.h> #include <libnbd.h> #include "methods.h" static inline PyObject * put_handle (struct nbd_handle *h) { assert (h); return PyCapsule_New ((void *) h, "nbd_handle", NULL); } PyObject * nbd_internal_py_create (PyObject *self, PyObject *args) { struct nbd_handle *h; if (!PyArg_ParseTuple (args, (char *) ":nbd_create")) return NULL; h = nbd_create (); if (h == NULL) { PyErr_SetString (PyExc_RuntimeError, nbd_get_error ()); return NULL; } return put_handle (h); } PyObject * nbd_internal_py_close (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; if (!PyArg_ParseTuple (args, (char *) "O:nbd_close", &py_h)) return NULL; h = get_handle (py_h); nbd_close (h); Py_INCREF (Py_None); return Py_None; } static const char aio_buffer_name[] = "nbd.Buffer"; struct py_aio_buffer * nbd_internal_py_get_aio_buffer (PyObject *capsule) { return PyCapsule_GetPointer (capsule, aio_buffer_name); } static void free_aio_buffer (PyObject *capsule) { struct py_aio_buffer *buf = PyCapsule_GetPointer (capsule, aio_buffer_name); free (buf->data); free (buf); } /* Allocate a persistent buffer used for nbd_aio_pread. */ PyObject * nbd_internal_py_alloc_aio_buffer (PyObject *self, PyObject *args) { struct py_aio_buffer *buf; PyObject *ret; buf = malloc (sizeof *buf); if (buf == NULL) { PyErr_NoMemory (); return NULL; } if (!PyArg_ParseTuple (args, (char *) "n:nbd_internal_py_alloc_aio_buffer", &buf->len)) { free (buf); return NULL; } if (buf->len < 0) { PyErr_SetString (PyExc_RuntimeError, "length < 0"); free (buf); return NULL; } buf->data = malloc (buf->len); if (buf->data == NULL) { PyErr_NoMemory (); free (buf); return NULL; } ret = PyCapsule_New (buf, aio_buffer_name, free_aio_buffer); if (ret == NULL) { free (buf->data); free (buf); return NULL; } return ret; } PyObject * nbd_internal_py_aio_buffer_from_bytearray (PyObject *self, PyObject *args) { PyObject *obj; Py_ssize_t len; void *data; struct py_aio_buffer *buf; PyObject *ret; if (!PyArg_ParseTuple (args, (char *) "O:nbd_internal_py_aio_buffer_from_bytearray", &obj)) return NULL; data = PyByteArray_AsString (obj); if (!data) return NULL; len = PyByteArray_Size (obj); buf = malloc (sizeof *buf); if (buf == NULL) { PyErr_NoMemory (); return NULL; } buf->len = len; buf->data = malloc (len); if (buf->data == NULL) { PyErr_NoMemory (); free (buf); return NULL; } memcpy (buf->data, data, len); ret = PyCapsule_New (buf, aio_buffer_name, free_aio_buffer); if (ret == NULL) { free (buf->data); free (buf); return NULL; } return ret; } PyObject * nbd_internal_py_aio_buffer_to_bytearray (PyObject *self, PyObject *args) { PyObject *obj; struct py_aio_buffer *buf; if (!PyArg_ParseTuple (args, (char *) "O:nbd_internal_py_aio_buffer_to_bytearray", &obj)) return NULL; buf = nbd_internal_py_get_aio_buffer (obj); if (buf == NULL) return NULL; return PyByteArray_FromStringAndSize (buf->data, buf->len); } PyObject * nbd_internal_py_aio_buffer_size (PyObject *self, PyObject *args) { PyObject *obj; struct py_aio_buffer *buf; if (!PyArg_ParseTuple (args, (char *) "O:nbd_internal_py_aio_buffer_size", &obj)) return NULL; buf = nbd_internal_py_get_aio_buffer (obj); if (buf == NULL) return NULL; return PyLong_FromSsize_t (buf->len); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/libnbdmod.c���������������������������������������������������������������������0000444�0001750�0001750�00000024232�13563236631�013317� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #define PY_SSIZE_T_CLEAN 1 #include <Python.h> #include <stdio.h> #include <stdlib.h> #include <assert.h> #include <libnbd.h> #include "methods.h" static PyMethodDef methods[] = { { (char *) "create", nbd_internal_py_create, METH_VARARGS, NULL }, { (char *) "close", nbd_internal_py_close, METH_VARARGS, NULL }, { (char *) "alloc_aio_buffer", nbd_internal_py_alloc_aio_buffer, METH_VARARGS, NULL }, { (char *) "aio_buffer_from_bytearray", nbd_internal_py_aio_buffer_from_bytearray, METH_VARARGS, NULL }, { (char *) "aio_buffer_to_bytearray", nbd_internal_py_aio_buffer_to_bytearray, METH_VARARGS, NULL }, { (char *) "aio_buffer_size", nbd_internal_py_aio_buffer_size, METH_VARARGS, NULL }, { (char *) "set_debug", nbd_internal_py_set_debug, METH_VARARGS, NULL }, { (char *) "get_debug", nbd_internal_py_get_debug, METH_VARARGS, NULL }, { (char *) "set_debug_callback", nbd_internal_py_set_debug_callback, METH_VARARGS, NULL }, { (char *) "clear_debug_callback", nbd_internal_py_clear_debug_callback, METH_VARARGS, NULL }, { (char *) "set_handle_name", nbd_internal_py_set_handle_name, METH_VARARGS, NULL }, { (char *) "get_handle_name", nbd_internal_py_get_handle_name, METH_VARARGS, NULL }, { (char *) "set_export_name", nbd_internal_py_set_export_name, METH_VARARGS, NULL }, { (char *) "get_export_name", nbd_internal_py_get_export_name, METH_VARARGS, NULL }, { (char *) "set_tls", nbd_internal_py_set_tls, METH_VARARGS, NULL }, { (char *) "get_tls", nbd_internal_py_get_tls, METH_VARARGS, NULL }, { (char *) "get_tls_negotiated", nbd_internal_py_get_tls_negotiated, METH_VARARGS, NULL }, { (char *) "set_tls_certificates", nbd_internal_py_set_tls_certificates, METH_VARARGS, NULL }, { (char *) "set_tls_verify_peer", nbd_internal_py_set_tls_verify_peer, METH_VARARGS, NULL }, { (char *) "get_tls_verify_peer", nbd_internal_py_get_tls_verify_peer, METH_VARARGS, NULL }, { (char *) "set_tls_username", nbd_internal_py_set_tls_username, METH_VARARGS, NULL }, { (char *) "get_tls_username", nbd_internal_py_get_tls_username, METH_VARARGS, NULL }, { (char *) "set_tls_psk_file", nbd_internal_py_set_tls_psk_file, METH_VARARGS, NULL }, { (char *) "set_request_structured_replies", nbd_internal_py_set_request_structured_replies, METH_VARARGS, NULL }, { (char *) "get_request_structured_replies", nbd_internal_py_get_request_structured_replies, METH_VARARGS, NULL }, { (char *) "get_structured_replies_negotiated", nbd_internal_py_get_structured_replies_negotiated, METH_VARARGS, NULL }, { (char *) "set_handshake_flags", nbd_internal_py_set_handshake_flags, METH_VARARGS, NULL }, { (char *) "get_handshake_flags", nbd_internal_py_get_handshake_flags, METH_VARARGS, NULL }, { (char *) "add_meta_context", nbd_internal_py_add_meta_context, METH_VARARGS, NULL }, { (char *) "set_uri_allow_transports", nbd_internal_py_set_uri_allow_transports, METH_VARARGS, NULL }, { (char *) "set_uri_allow_tls", nbd_internal_py_set_uri_allow_tls, METH_VARARGS, NULL }, { (char *) "set_uri_allow_local_file", nbd_internal_py_set_uri_allow_local_file, METH_VARARGS, NULL }, { (char *) "connect_uri", nbd_internal_py_connect_uri, METH_VARARGS, NULL }, { (char *) "connect_unix", nbd_internal_py_connect_unix, METH_VARARGS, NULL }, { (char *) "connect_vsock", nbd_internal_py_connect_vsock, METH_VARARGS, NULL }, { (char *) "connect_tcp", nbd_internal_py_connect_tcp, METH_VARARGS, NULL }, { (char *) "connect_socket", nbd_internal_py_connect_socket, METH_VARARGS, NULL }, { (char *) "connect_command", nbd_internal_py_connect_command, METH_VARARGS, NULL }, { (char *) "connect_systemd_socket_activation", nbd_internal_py_connect_systemd_socket_activation, METH_VARARGS, NULL }, { (char *) "is_read_only", nbd_internal_py_is_read_only, METH_VARARGS, NULL }, { (char *) "can_flush", nbd_internal_py_can_flush, METH_VARARGS, NULL }, { (char *) "can_fua", nbd_internal_py_can_fua, METH_VARARGS, NULL }, { (char *) "is_rotational", nbd_internal_py_is_rotational, METH_VARARGS, NULL }, { (char *) "can_trim", nbd_internal_py_can_trim, METH_VARARGS, NULL }, { (char *) "can_zero", nbd_internal_py_can_zero, METH_VARARGS, NULL }, { (char *) "can_fast_zero", nbd_internal_py_can_fast_zero, METH_VARARGS, NULL }, { (char *) "can_df", nbd_internal_py_can_df, METH_VARARGS, NULL }, { (char *) "can_multi_conn", nbd_internal_py_can_multi_conn, METH_VARARGS, NULL }, { (char *) "can_cache", nbd_internal_py_can_cache, METH_VARARGS, NULL }, { (char *) "can_meta_context", nbd_internal_py_can_meta_context, METH_VARARGS, NULL }, { (char *) "get_protocol", nbd_internal_py_get_protocol, METH_VARARGS, NULL }, { (char *) "get_size", nbd_internal_py_get_size, METH_VARARGS, NULL }, { (char *) "pread", nbd_internal_py_pread, METH_VARARGS, NULL }, { (char *) "pread_structured", nbd_internal_py_pread_structured, METH_VARARGS, NULL }, { (char *) "pwrite", nbd_internal_py_pwrite, METH_VARARGS, NULL }, { (char *) "shutdown", nbd_internal_py_shutdown, METH_VARARGS, NULL }, { (char *) "flush", nbd_internal_py_flush, METH_VARARGS, NULL }, { (char *) "trim", nbd_internal_py_trim, METH_VARARGS, NULL }, { (char *) "cache", nbd_internal_py_cache, METH_VARARGS, NULL }, { (char *) "zero", nbd_internal_py_zero, METH_VARARGS, NULL }, { (char *) "block_status", nbd_internal_py_block_status, METH_VARARGS, NULL }, { (char *) "poll", nbd_internal_py_poll, METH_VARARGS, NULL }, { (char *) "aio_connect", nbd_internal_py_aio_connect, METH_VARARGS, NULL }, { (char *) "aio_connect_uri", nbd_internal_py_aio_connect_uri, METH_VARARGS, NULL }, { (char *) "aio_connect_unix", nbd_internal_py_aio_connect_unix, METH_VARARGS, NULL }, { (char *) "aio_connect_vsock", nbd_internal_py_aio_connect_vsock, METH_VARARGS, NULL }, { (char *) "aio_connect_tcp", nbd_internal_py_aio_connect_tcp, METH_VARARGS, NULL }, { (char *) "aio_connect_socket", nbd_internal_py_aio_connect_socket, METH_VARARGS, NULL }, { (char *) "aio_connect_command", nbd_internal_py_aio_connect_command, METH_VARARGS, NULL }, { (char *) "aio_connect_systemd_socket_activation", nbd_internal_py_aio_connect_systemd_socket_activation, METH_VARARGS, NULL }, { (char *) "aio_pread", nbd_internal_py_aio_pread, METH_VARARGS, NULL }, { (char *) "aio_pread_structured", nbd_internal_py_aio_pread_structured, METH_VARARGS, NULL }, { (char *) "aio_pwrite", nbd_internal_py_aio_pwrite, METH_VARARGS, NULL }, { (char *) "aio_disconnect", nbd_internal_py_aio_disconnect, METH_VARARGS, NULL }, { (char *) "aio_flush", nbd_internal_py_aio_flush, METH_VARARGS, NULL }, { (char *) "aio_trim", nbd_internal_py_aio_trim, METH_VARARGS, NULL }, { (char *) "aio_cache", nbd_internal_py_aio_cache, METH_VARARGS, NULL }, { (char *) "aio_zero", nbd_internal_py_aio_zero, METH_VARARGS, NULL }, { (char *) "aio_block_status", nbd_internal_py_aio_block_status, METH_VARARGS, NULL }, { (char *) "aio_get_fd", nbd_internal_py_aio_get_fd, METH_VARARGS, NULL }, { (char *) "aio_get_direction", nbd_internal_py_aio_get_direction, METH_VARARGS, NULL }, { (char *) "aio_notify_read", nbd_internal_py_aio_notify_read, METH_VARARGS, NULL }, { (char *) "aio_notify_write", nbd_internal_py_aio_notify_write, METH_VARARGS, NULL }, { (char *) "aio_is_created", nbd_internal_py_aio_is_created, METH_VARARGS, NULL }, { (char *) "aio_is_connecting", nbd_internal_py_aio_is_connecting, METH_VARARGS, NULL }, { (char *) "aio_is_ready", nbd_internal_py_aio_is_ready, METH_VARARGS, NULL }, { (char *) "aio_is_processing", nbd_internal_py_aio_is_processing, METH_VARARGS, NULL }, { (char *) "aio_is_dead", nbd_internal_py_aio_is_dead, METH_VARARGS, NULL }, { (char *) "aio_is_closed", nbd_internal_py_aio_is_closed, METH_VARARGS, NULL }, { (char *) "aio_command_completed", nbd_internal_py_aio_command_completed, METH_VARARGS, NULL }, { (char *) "aio_peek_command_completed", nbd_internal_py_aio_peek_command_completed, METH_VARARGS, NULL }, { (char *) "aio_in_flight", nbd_internal_py_aio_in_flight, METH_VARARGS, NULL }, { (char *) "connection_state", nbd_internal_py_connection_state, METH_VARARGS, NULL }, { (char *) "get_package_name", nbd_internal_py_get_package_name, METH_VARARGS, NULL }, { (char *) "get_version", nbd_internal_py_get_version, METH_VARARGS, NULL }, { (char *) "kill_subprocess", nbd_internal_py_kill_subprocess, METH_VARARGS, NULL }, { (char *) "supports_tls", nbd_internal_py_supports_tls, METH_VARARGS, NULL }, { (char *) "supports_uri", nbd_internal_py_supports_uri, METH_VARARGS, NULL }, { NULL, NULL, 0, NULL } }; static struct PyModuleDef moduledef = { PyModuleDef_HEAD_INIT, "libnbdmod", /* m_name */ "libnbd module", /* m_doc */ -1, /* m_size */ methods, /* m_methods */ NULL, /* m_reload */ NULL, /* m_traverse */ NULL, /* m_clear */ NULL, /* m_free */ }; /* nbd.Error exception. */ PyObject *nbd_internal_py_Error; extern PyMODINIT_FUNC PyInit_libnbdmod (void); PyMODINIT_FUNC PyInit_libnbdmod (void) { PyObject *mod; mod = PyModule_Create (&moduledef); if (mod == NULL) return NULL; nbd_internal_py_Error = PyErr_NewException ("nbd.Error", NULL, NULL); if (nbd_internal_py_Error == NULL) return NULL; PyModule_AddObject (mod, "Error", nbd_internal_py_Error); return mod; } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/methods.c�����������������������������������������������������������������������0000444�0001750�0001750�00000212714�13563236631�013034� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #define PY_SSIZE_T_CLEAN 1 #include <Python.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <stdbool.h> #include <libnbd.h> #include <methods.h> /* This is passed to *_wrapper as the user_data pointer * and freed in the free_user_data function below. */ struct user_data { PyObject *fn; /* Optional pointer to Python function. */ PyObject *buf; /* Optional pointer to persistent buffer. */ }; static struct user_data * alloc_user_data (void) { struct user_data *data = calloc (1, sizeof *data); if (data == NULL) { PyErr_NoMemory (); return NULL; } return data; } static void free_user_data (void *user_data) { struct user_data *data = user_data; if (data->fn != NULL) Py_DECREF (data->fn); if (data->buf != NULL) Py_DECREF (data->buf); free (data); } /* Wrapper for chunk callback. */ static int chunk_wrapper (void *user_data, const void *subbuf, size_t count, uint64_t offset, unsigned status, int *error) { const struct user_data *data = user_data; int ret = 0; PyGILState_STATE py_save = PyGILState_UNLOCKED; PyObject *py_args, *py_ret; PyObject *py_error_modname = PyUnicode_FromString ("ctypes"); if (!py_error_modname) { PyErr_PrintEx (0); return -1; } PyObject *py_error_mod = PyImport_Import (py_error_modname); Py_DECREF (py_error_modname); if (!py_error_mod) { PyErr_PrintEx (0); return -1; } PyObject *py_error = PyObject_CallMethod (py_error_mod, "c_int", "i", *error); if (!py_error) { PyErr_PrintEx (0); return -1; } py_args = Py_BuildValue ("(" "y#" "K" "I" "O" ")", subbuf, (int) count, offset, status, py_error); Py_INCREF (py_args); if (PyEval_ThreadsInitialized ()) py_save = PyGILState_Ensure (); py_ret = PyObject_CallObject (data->fn, py_args); if (PyEval_ThreadsInitialized ()) PyGILState_Release (py_save); Py_DECREF (py_args); if (py_ret != NULL) { if (PyLong_Check (py_ret)) ret = PyLong_AsLong (py_ret); else /* If it's not a long, just assume it's 0. */ ret = 0; Py_DECREF (py_ret); } else { /* Special case failed assertions to be fatal. */ if (PyErr_ExceptionMatches (PyExc_AssertionError)) { PyErr_Print (); abort (); } ret = -1; PyErr_PrintEx (0); /* print exception */ }; PyObject *py_error_ret = PyObject_GetAttrString (py_error, "value"); *error = PyLong_AsLong (py_error_ret); Py_DECREF (py_error_ret); Py_DECREF (py_error); return ret; } /* Wrapper for completion callback. */ static int completion_wrapper (void *user_data, int *error) { const struct user_data *data = user_data; int ret = 0; PyGILState_STATE py_save = PyGILState_UNLOCKED; PyObject *py_args, *py_ret; PyObject *py_error_modname = PyUnicode_FromString ("ctypes"); if (!py_error_modname) { PyErr_PrintEx (0); return -1; } PyObject *py_error_mod = PyImport_Import (py_error_modname); Py_DECREF (py_error_modname); if (!py_error_mod) { PyErr_PrintEx (0); return -1; } PyObject *py_error = PyObject_CallMethod (py_error_mod, "c_int", "i", *error); if (!py_error) { PyErr_PrintEx (0); return -1; } py_args = Py_BuildValue ("(" "O" ")", py_error); Py_INCREF (py_args); if (PyEval_ThreadsInitialized ()) py_save = PyGILState_Ensure (); py_ret = PyObject_CallObject (data->fn, py_args); if (PyEval_ThreadsInitialized ()) PyGILState_Release (py_save); Py_DECREF (py_args); if (py_ret != NULL) { if (PyLong_Check (py_ret)) ret = PyLong_AsLong (py_ret); else /* If it's not a long, just assume it's 0. */ ret = 0; Py_DECREF (py_ret); } else { /* Special case failed assertions to be fatal. */ if (PyErr_ExceptionMatches (PyExc_AssertionError)) { PyErr_Print (); abort (); } ret = -1; PyErr_PrintEx (0); /* print exception */ }; PyObject *py_error_ret = PyObject_GetAttrString (py_error, "value"); *error = PyLong_AsLong (py_error_ret); Py_DECREF (py_error_ret); Py_DECREF (py_error); return ret; } /* Wrapper for debug callback. */ static int debug_wrapper (void *user_data, const char *context, const char *msg) { const struct user_data *data = user_data; int ret = 0; PyGILState_STATE py_save = PyGILState_UNLOCKED; PyObject *py_args, *py_ret; py_args = Py_BuildValue ("(" "s" "s" ")", context, msg); Py_INCREF (py_args); if (PyEval_ThreadsInitialized ()) py_save = PyGILState_Ensure (); py_ret = PyObject_CallObject (data->fn, py_args); if (PyEval_ThreadsInitialized ()) PyGILState_Release (py_save); Py_DECREF (py_args); if (py_ret != NULL) { if (PyLong_Check (py_ret)) ret = PyLong_AsLong (py_ret); else /* If it's not a long, just assume it's 0. */ ret = 0; Py_DECREF (py_ret); } else { /* Special case failed assertions to be fatal. */ if (PyErr_ExceptionMatches (PyExc_AssertionError)) { PyErr_Print (); abort (); } ret = -1; PyErr_PrintEx (0); /* print exception */ }; return ret; } /* Wrapper for extent callback. */ static int extent_wrapper (void *user_data, const char *metacontext, uint64_t offset, uint32_t *entries, size_t nr_entries, int *error) { const struct user_data *data = user_data; int ret = 0; PyGILState_STATE py_save = PyGILState_UNLOCKED; PyObject *py_args, *py_ret; PyObject *py_entries = PyList_New (nr_entries); for (size_t i = 0; i < nr_entries; ++i) PyList_SET_ITEM (py_entries, i, PyLong_FromUnsignedLong (entries[i])); PyObject *py_error_modname = PyUnicode_FromString ("ctypes"); if (!py_error_modname) { PyErr_PrintEx (0); return -1; } PyObject *py_error_mod = PyImport_Import (py_error_modname); Py_DECREF (py_error_modname); if (!py_error_mod) { PyErr_PrintEx (0); return -1; } PyObject *py_error = PyObject_CallMethod (py_error_mod, "c_int", "i", *error); if (!py_error) { PyErr_PrintEx (0); return -1; } py_args = Py_BuildValue ("(" "s" "K" "O" "O" ")", metacontext, offset, py_entries, py_error); Py_INCREF (py_args); if (PyEval_ThreadsInitialized ()) py_save = PyGILState_Ensure (); py_ret = PyObject_CallObject (data->fn, py_args); if (PyEval_ThreadsInitialized ()) PyGILState_Release (py_save); Py_DECREF (py_args); if (py_ret != NULL) { if (PyLong_Check (py_ret)) ret = PyLong_AsLong (py_ret); else /* If it's not a long, just assume it's 0. */ ret = 0; Py_DECREF (py_ret); } else { /* Special case failed assertions to be fatal. */ if (PyErr_ExceptionMatches (PyExc_AssertionError)) { PyErr_Print (); abort (); } ret = -1; PyErr_PrintEx (0); /* print exception */ }; Py_DECREF (py_entries); PyObject *py_error_ret = PyObject_GetAttrString (py_error, "value"); *error = PyLong_AsLong (py_error_ret); Py_DECREF (py_error_ret); Py_DECREF (py_error); return ret; } PyObject * nbd_internal_py_set_debug (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int debug; if (!PyArg_ParseTuple (args, (char *) "O" "b" ":nbd_set_debug", &py_h, &debug)) return NULL; h = get_handle (py_h); ret = nbd_set_debug (h, debug); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_get_debug (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_debug", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_debug (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_set_debug_callback (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; struct user_data *debug_user_data = alloc_user_data (); if (debug_user_data == NULL) return NULL; nbd_debug_callback debug = { .callback = debug_wrapper, .user_data = debug_user_data, .free = free_user_data }; if (!PyArg_ParseTuple (args, (char *) "O" "O" ":nbd_set_debug_callback", &py_h, &debug_user_data->fn)) return NULL; h = get_handle (py_h); /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (debug_user_data->fn); if (!PyCallable_Check (debug_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter debug is not callable"); return NULL; } ret = nbd_set_debug_callback (h, debug); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_clear_debug_callback (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_clear_debug_callback", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_clear_debug_callback (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_set_handle_name (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; const char *handle_name; if (!PyArg_ParseTuple (args, (char *) "O" "s" ":nbd_set_handle_name", &py_h, &handle_name)) return NULL; h = get_handle (py_h); ret = nbd_set_handle_name (h, handle_name); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_get_handle_name (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; char * ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_handle_name", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_handle_name (h); if (ret == NULL) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyUnicode_FromString (ret); free (ret); out: return py_ret; } PyObject * nbd_internal_py_set_export_name (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; const char *export_name; if (!PyArg_ParseTuple (args, (char *) "O" "s" ":nbd_set_export_name", &py_h, &export_name)) return NULL; h = get_handle (py_h); ret = nbd_set_export_name (h, export_name); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_get_export_name (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; char * ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_export_name", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_export_name (h); if (ret == NULL) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyUnicode_FromString (ret); free (ret); out: return py_ret; } PyObject * nbd_internal_py_set_tls (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int tls; if (!PyArg_ParseTuple (args, (char *) "O" "i" ":nbd_set_tls", &py_h, &tls)) return NULL; h = get_handle (py_h); ret = nbd_set_tls (h, tls); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_get_tls (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_tls", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_tls (h); py_ret = PyLong_FromLong (ret); return py_ret; } PyObject * nbd_internal_py_get_tls_negotiated (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_tls_negotiated", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_tls_negotiated (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_set_tls_certificates (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; PyObject *py_dir = NULL; char *dir = NULL; if (!PyArg_ParseTuple (args, (char *) "O" "O&" ":nbd_set_tls_certificates", &py_h, PyUnicode_FSConverter, &py_dir)) return NULL; h = get_handle (py_h); dir = PyBytes_AS_STRING (py_dir); assert (dir != NULL); ret = nbd_set_tls_certificates (h, dir); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: Py_XDECREF (py_dir); return py_ret; } PyObject * nbd_internal_py_set_tls_verify_peer (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int verify; if (!PyArg_ParseTuple (args, (char *) "O" "b" ":nbd_set_tls_verify_peer", &py_h, &verify)) return NULL; h = get_handle (py_h); ret = nbd_set_tls_verify_peer (h, verify); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_get_tls_verify_peer (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_tls_verify_peer", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_tls_verify_peer (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_set_tls_username (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; const char *username; if (!PyArg_ParseTuple (args, (char *) "O" "s" ":nbd_set_tls_username", &py_h, &username)) return NULL; h = get_handle (py_h); ret = nbd_set_tls_username (h, username); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_get_tls_username (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; char * ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_tls_username", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_tls_username (h); if (ret == NULL) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyUnicode_FromString (ret); free (ret); out: return py_ret; } PyObject * nbd_internal_py_set_tls_psk_file (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; PyObject *py_filename = NULL; char *filename = NULL; if (!PyArg_ParseTuple (args, (char *) "O" "O&" ":nbd_set_tls_psk_file", &py_h, PyUnicode_FSConverter, &py_filename)) return NULL; h = get_handle (py_h); filename = PyBytes_AS_STRING (py_filename); assert (filename != NULL); ret = nbd_set_tls_psk_file (h, filename); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: Py_XDECREF (py_filename); return py_ret; } PyObject * nbd_internal_py_set_request_structured_replies (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int request; if (!PyArg_ParseTuple (args, (char *) "O" "b" ":nbd_set_request_structured_replies", &py_h, &request)) return NULL; h = get_handle (py_h); ret = nbd_set_request_structured_replies (h, request); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_get_request_structured_replies (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_request_structured_replies", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_request_structured_replies (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_get_structured_replies_negotiated (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_structured_replies_negotiated", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_structured_replies_negotiated (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_set_handshake_flags (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "I" ":nbd_set_handshake_flags", &py_h, &flags)) return NULL; h = get_handle (py_h); flags_u32 = flags; ret = nbd_set_handshake_flags (h, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_get_handshake_flags (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; unsigned ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_handshake_flags", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_handshake_flags (h); py_ret = PyLong_FromLong (ret); return py_ret; } PyObject * nbd_internal_py_add_meta_context (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; const char *name; if (!PyArg_ParseTuple (args, (char *) "O" "s" ":nbd_add_meta_context", &py_h, &name)) return NULL; h = get_handle (py_h); ret = nbd_add_meta_context (h, name); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_set_uri_allow_transports (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint32_t mask_u32; unsigned int mask; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "I" ":nbd_set_uri_allow_transports", &py_h, &mask)) return NULL; h = get_handle (py_h); mask_u32 = mask; ret = nbd_set_uri_allow_transports (h, mask_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_set_uri_allow_tls (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int tls; if (!PyArg_ParseTuple (args, (char *) "O" "i" ":nbd_set_uri_allow_tls", &py_h, &tls)) return NULL; h = get_handle (py_h); ret = nbd_set_uri_allow_tls (h, tls); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_set_uri_allow_local_file (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int allow; if (!PyArg_ParseTuple (args, (char *) "O" "b" ":nbd_set_uri_allow_local_file", &py_h, &allow)) return NULL; h = get_handle (py_h); ret = nbd_set_uri_allow_local_file (h, allow); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_connect_uri (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; const char *uri; if (!PyArg_ParseTuple (args, (char *) "O" "s" ":nbd_connect_uri", &py_h, &uri)) return NULL; h = get_handle (py_h); ret = nbd_connect_uri (h, uri); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_connect_unix (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; PyObject *py_unixsocket = NULL; char *unixsocket = NULL; if (!PyArg_ParseTuple (args, (char *) "O" "O&" ":nbd_connect_unix", &py_h, PyUnicode_FSConverter, &py_unixsocket)) return NULL; h = get_handle (py_h); unixsocket = PyBytes_AS_STRING (py_unixsocket); assert (unixsocket != NULL); ret = nbd_connect_unix (h, unixsocket); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: Py_XDECREF (py_unixsocket); return py_ret; } PyObject * nbd_internal_py_connect_vsock (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint32_t cid_u32; unsigned int cid; /* really uint32_t */ uint32_t port_u32; unsigned int port; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "I" "I" ":nbd_connect_vsock", &py_h, &cid, &port)) return NULL; h = get_handle (py_h); cid_u32 = cid; port_u32 = port; ret = nbd_connect_vsock (h, cid_u32, port_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_connect_tcp (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; const char *hostname; const char *port; if (!PyArg_ParseTuple (args, (char *) "O" "s" "s" ":nbd_connect_tcp", &py_h, &hostname, &port)) return NULL; h = get_handle (py_h); ret = nbd_connect_tcp (h, hostname, port); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_connect_socket (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int sock; if (!PyArg_ParseTuple (args, (char *) "O" "i" ":nbd_connect_socket", &py_h, &sock)) return NULL; h = get_handle (py_h); ret = nbd_connect_socket (h, sock); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_connect_command (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; PyObject *py_argv; char **argv = NULL; if (!PyArg_ParseTuple (args, (char *) "O" "O" ":nbd_connect_command", &py_h, &py_argv)) return NULL; h = get_handle (py_h); argv = nbd_internal_py_get_string_list (py_argv); if (!argv) { py_ret = NULL; goto out; } ret = nbd_connect_command (h, argv); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: nbd_internal_py_free_string_list (argv); return py_ret; } PyObject * nbd_internal_py_connect_systemd_socket_activation (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; PyObject *py_argv; char **argv = NULL; if (!PyArg_ParseTuple (args, (char *) "O" "O" ":nbd_connect_systemd_socket_activation", &py_h, &py_argv)) return NULL; h = get_handle (py_h); argv = nbd_internal_py_get_string_list (py_argv); if (!argv) { py_ret = NULL; goto out; } ret = nbd_connect_systemd_socket_activation (h, argv); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: nbd_internal_py_free_string_list (argv); return py_ret; } PyObject * nbd_internal_py_is_read_only (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_is_read_only", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_is_read_only (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_can_flush (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_can_flush", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_can_flush (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_can_fua (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_can_fua", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_can_fua (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_is_rotational (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_is_rotational", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_is_rotational (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_can_trim (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_can_trim", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_can_trim (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_can_zero (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_can_zero", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_can_zero (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_can_fast_zero (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_can_fast_zero", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_can_fast_zero (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_can_df (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_can_df", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_can_df (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_can_multi_conn (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_can_multi_conn", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_can_multi_conn (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_can_cache (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_can_cache", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_can_cache (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_can_meta_context (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; const char *metacontext; if (!PyArg_ParseTuple (args, (char *) "O" "s" ":nbd_can_meta_context", &py_h, &metacontext)) return NULL; h = get_handle (py_h); ret = nbd_can_meta_context (h, metacontext); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_get_protocol (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; const char * ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_protocol", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_protocol (h); if (ret == NULL) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyUnicode_FromString (ret); out: return py_ret; } PyObject * nbd_internal_py_get_size (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_size", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_size (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_pread (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; char *buf; Py_ssize_t count; uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "n" "K" "I" ":nbd_pread", &py_h, &count, &offset, &flags)) return NULL; h = get_handle (py_h); buf = malloc (count); offset_u64 = offset; flags_u32 = flags; ret = nbd_pread (h, buf, count, offset_u64, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyBytes_FromStringAndSize (buf, count); out: return py_ret; } PyObject * nbd_internal_py_pread_structured (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; char *buf; Py_ssize_t count; uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ struct user_data *chunk_user_data = alloc_user_data (); if (chunk_user_data == NULL) return NULL; nbd_chunk_callback chunk = { .callback = chunk_wrapper, .user_data = chunk_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "n" "K" "O" "I" ":nbd_pread_structured", &py_h, &count, &offset, &chunk_user_data->fn, &flags)) return NULL; h = get_handle (py_h); buf = malloc (count); offset_u64 = offset; /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (chunk_user_data->fn); if (!PyCallable_Check (chunk_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter chunk is not callable"); return NULL; } flags_u32 = flags; ret = nbd_pread_structured (h, buf, count, offset_u64, chunk, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyBytes_FromStringAndSize (buf, count); out: return py_ret; } PyObject * nbd_internal_py_pwrite (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; Py_buffer buf; uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "y*" "K" "I" ":nbd_pwrite", &py_h, &buf, &offset, &flags)) return NULL; h = get_handle (py_h); offset_u64 = offset; flags_u32 = flags; ret = nbd_pwrite (h, buf.buf, buf.len, offset_u64, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: PyBuffer_Release (&buf); return py_ret; } PyObject * nbd_internal_py_shutdown (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "I" ":nbd_shutdown", &py_h, &flags)) return NULL; h = get_handle (py_h); flags_u32 = flags; ret = nbd_shutdown (h, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_flush (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "I" ":nbd_flush", &py_h, &flags)) return NULL; h = get_handle (py_h); flags_u32 = flags; ret = nbd_flush (h, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_trim (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint64_t count_u64; unsigned long long count; /* really uint64_t */ uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "K" "K" "I" ":nbd_trim", &py_h, &count, &offset, &flags)) return NULL; h = get_handle (py_h); count_u64 = count; offset_u64 = offset; flags_u32 = flags; ret = nbd_trim (h, count_u64, offset_u64, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_cache (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint64_t count_u64; unsigned long long count; /* really uint64_t */ uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "K" "K" "I" ":nbd_cache", &py_h, &count, &offset, &flags)) return NULL; h = get_handle (py_h); count_u64 = count; offset_u64 = offset; flags_u32 = flags; ret = nbd_cache (h, count_u64, offset_u64, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_zero (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint64_t count_u64; unsigned long long count; /* really uint64_t */ uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "K" "K" "I" ":nbd_zero", &py_h, &count, &offset, &flags)) return NULL; h = get_handle (py_h); count_u64 = count; offset_u64 = offset; flags_u32 = flags; ret = nbd_zero (h, count_u64, offset_u64, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_block_status (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint64_t count_u64; unsigned long long count; /* really uint64_t */ uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ struct user_data *extent_user_data = alloc_user_data (); if (extent_user_data == NULL) return NULL; nbd_extent_callback extent = { .callback = extent_wrapper, .user_data = extent_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "K" "K" "O" "I" ":nbd_block_status", &py_h, &count, &offset, &extent_user_data->fn, &flags)) return NULL; h = get_handle (py_h); count_u64 = count; offset_u64 = offset; /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (extent_user_data->fn); if (!PyCallable_Check (extent_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter extent is not callable"); return NULL; } flags_u32 = flags; ret = nbd_block_status (h, count_u64, offset_u64, extent, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_poll (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int timeout; if (!PyArg_ParseTuple (args, (char *) "O" "i" ":nbd_poll", &py_h, &timeout)) return NULL; h = get_handle (py_h); ret = nbd_poll (h, timeout); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_connect (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; /* XXX Complicated - Python uses a tuple of different * lengths for the different socket types. */ PyObject *addr; if (!PyArg_ParseTuple (args, (char *) "O" "O" ":nbd_aio_connect", &py_h, &addr)) return NULL; h = get_handle (py_h); abort (); /* XXX SockAddrAndLen not implemented */ ret = nbd_aio_connect (h, /* XXX */ (void *) addr, 0); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_aio_connect_uri (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; const char *uri; if (!PyArg_ParseTuple (args, (char *) "O" "s" ":nbd_aio_connect_uri", &py_h, &uri)) return NULL; h = get_handle (py_h); ret = nbd_aio_connect_uri (h, uri); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_aio_connect_unix (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; PyObject *py_unixsocket = NULL; char *unixsocket = NULL; if (!PyArg_ParseTuple (args, (char *) "O" "O&" ":nbd_aio_connect_unix", &py_h, PyUnicode_FSConverter, &py_unixsocket)) return NULL; h = get_handle (py_h); unixsocket = PyBytes_AS_STRING (py_unixsocket); assert (unixsocket != NULL); ret = nbd_aio_connect_unix (h, unixsocket); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: Py_XDECREF (py_unixsocket); return py_ret; } PyObject * nbd_internal_py_aio_connect_vsock (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint32_t cid_u32; unsigned int cid; /* really uint32_t */ uint32_t port_u32; unsigned int port; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "I" "I" ":nbd_aio_connect_vsock", &py_h, &cid, &port)) return NULL; h = get_handle (py_h); cid_u32 = cid; port_u32 = port; ret = nbd_aio_connect_vsock (h, cid_u32, port_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_aio_connect_tcp (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; const char *hostname; const char *port; if (!PyArg_ParseTuple (args, (char *) "O" "s" "s" ":nbd_aio_connect_tcp", &py_h, &hostname, &port)) return NULL; h = get_handle (py_h); ret = nbd_aio_connect_tcp (h, hostname, port); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_aio_connect_socket (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int sock; if (!PyArg_ParseTuple (args, (char *) "O" "i" ":nbd_aio_connect_socket", &py_h, &sock)) return NULL; h = get_handle (py_h); ret = nbd_aio_connect_socket (h, sock); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_aio_connect_command (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; PyObject *py_argv; char **argv = NULL; if (!PyArg_ParseTuple (args, (char *) "O" "O" ":nbd_aio_connect_command", &py_h, &py_argv)) return NULL; h = get_handle (py_h); argv = nbd_internal_py_get_string_list (py_argv); if (!argv) { py_ret = NULL; goto out; } ret = nbd_aio_connect_command (h, argv); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: nbd_internal_py_free_string_list (argv); return py_ret; } PyObject * nbd_internal_py_aio_connect_systemd_socket_activation (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; PyObject *py_argv; char **argv = NULL; if (!PyArg_ParseTuple (args, (char *) "O" "O" ":nbd_aio_connect_systemd_socket_activation", &py_h, &py_argv)) return NULL; h = get_handle (py_h); argv = nbd_internal_py_get_string_list (py_argv); if (!argv) { py_ret = NULL; goto out; } ret = nbd_aio_connect_systemd_socket_activation (h, argv); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: nbd_internal_py_free_string_list (argv); return py_ret; } PyObject * nbd_internal_py_aio_pread (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; PyObject *buf; /* PyCapsule pointing to struct py_aio_buffer */ struct py_aio_buffer *buf_buf; uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ struct user_data *completion_user_data = alloc_user_data (); if (completion_user_data == NULL) return NULL; nbd_completion_callback completion = { .callback = completion_wrapper, .user_data = completion_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "O" "K" "O" "I" ":nbd_aio_pread", &py_h, &buf, &offset, &completion_user_data->fn, &flags)) return NULL; h = get_handle (py_h); buf_buf = nbd_internal_py_get_aio_buffer (buf); offset_u64 = offset; if (completion_user_data->fn != Py_None) { /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (completion_user_data->fn); if (!PyCallable_Check (completion_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter completion is not callable"); return NULL; } } else completion.callback = NULL; /* we're not going to call it */ flags_u32 = flags; /* Increment refcount since buffer may be saved by libnbd. */ Py_INCREF (buf); completion_user_data->buf = buf; ret = nbd_aio_pread (h, buf_buf->data, buf_buf->len, offset_u64, completion, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_pread_structured (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; PyObject *buf; /* PyCapsule pointing to struct py_aio_buffer */ struct py_aio_buffer *buf_buf; uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ struct user_data *chunk_user_data = alloc_user_data (); if (chunk_user_data == NULL) return NULL; nbd_chunk_callback chunk = { .callback = chunk_wrapper, .user_data = chunk_user_data, .free = free_user_data }; struct user_data *completion_user_data = alloc_user_data (); if (completion_user_data == NULL) return NULL; nbd_completion_callback completion = { .callback = completion_wrapper, .user_data = completion_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "O" "K" "O" "O" "I" ":nbd_aio_pread_structured", &py_h, &buf, &offset, &chunk_user_data->fn, &completion_user_data->fn, &flags)) return NULL; h = get_handle (py_h); buf_buf = nbd_internal_py_get_aio_buffer (buf); offset_u64 = offset; /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (chunk_user_data->fn); if (!PyCallable_Check (chunk_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter chunk is not callable"); return NULL; } if (completion_user_data->fn != Py_None) { /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (completion_user_data->fn); if (!PyCallable_Check (completion_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter completion is not callable"); return NULL; } } else completion.callback = NULL; /* we're not going to call it */ flags_u32 = flags; /* Increment refcount since buffer may be saved by libnbd. */ Py_INCREF (buf); completion_user_data->buf = buf; ret = nbd_aio_pread_structured (h, buf_buf->data, buf_buf->len, offset_u64, chunk, completion, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_pwrite (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; PyObject *buf; /* PyCapsule pointing to struct py_aio_buffer */ struct py_aio_buffer *buf_buf; uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ struct user_data *completion_user_data = alloc_user_data (); if (completion_user_data == NULL) return NULL; nbd_completion_callback completion = { .callback = completion_wrapper, .user_data = completion_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "O" "K" "O" "I" ":nbd_aio_pwrite", &py_h, &buf, &offset, &completion_user_data->fn, &flags)) return NULL; h = get_handle (py_h); buf_buf = nbd_internal_py_get_aio_buffer (buf); offset_u64 = offset; if (completion_user_data->fn != Py_None) { /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (completion_user_data->fn); if (!PyCallable_Check (completion_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter completion is not callable"); return NULL; } } else completion.callback = NULL; /* we're not going to call it */ flags_u32 = flags; /* Increment refcount since buffer may be saved by libnbd. */ Py_INCREF (buf); completion_user_data->buf = buf; ret = nbd_aio_pwrite (h, buf_buf->data, buf_buf->len, offset_u64, completion, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_disconnect (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "I" ":nbd_aio_disconnect", &py_h, &flags)) return NULL; h = get_handle (py_h); flags_u32 = flags; ret = nbd_aio_disconnect (h, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_aio_flush (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; struct user_data *completion_user_data = alloc_user_data (); if (completion_user_data == NULL) return NULL; nbd_completion_callback completion = { .callback = completion_wrapper, .user_data = completion_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "O" "I" ":nbd_aio_flush", &py_h, &completion_user_data->fn, &flags)) return NULL; h = get_handle (py_h); if (completion_user_data->fn != Py_None) { /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (completion_user_data->fn); if (!PyCallable_Check (completion_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter completion is not callable"); return NULL; } } else completion.callback = NULL; /* we're not going to call it */ flags_u32 = flags; ret = nbd_aio_flush (h, completion, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_trim (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; uint64_t count_u64; unsigned long long count; /* really uint64_t */ uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ struct user_data *completion_user_data = alloc_user_data (); if (completion_user_data == NULL) return NULL; nbd_completion_callback completion = { .callback = completion_wrapper, .user_data = completion_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "K" "K" "O" "I" ":nbd_aio_trim", &py_h, &count, &offset, &completion_user_data->fn, &flags)) return NULL; h = get_handle (py_h); count_u64 = count; offset_u64 = offset; if (completion_user_data->fn != Py_None) { /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (completion_user_data->fn); if (!PyCallable_Check (completion_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter completion is not callable"); return NULL; } } else completion.callback = NULL; /* we're not going to call it */ flags_u32 = flags; ret = nbd_aio_trim (h, count_u64, offset_u64, completion, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_cache (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; uint64_t count_u64; unsigned long long count; /* really uint64_t */ uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ struct user_data *completion_user_data = alloc_user_data (); if (completion_user_data == NULL) return NULL; nbd_completion_callback completion = { .callback = completion_wrapper, .user_data = completion_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "K" "K" "O" "I" ":nbd_aio_cache", &py_h, &count, &offset, &completion_user_data->fn, &flags)) return NULL; h = get_handle (py_h); count_u64 = count; offset_u64 = offset; if (completion_user_data->fn != Py_None) { /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (completion_user_data->fn); if (!PyCallable_Check (completion_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter completion is not callable"); return NULL; } } else completion.callback = NULL; /* we're not going to call it */ flags_u32 = flags; ret = nbd_aio_cache (h, count_u64, offset_u64, completion, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_zero (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; uint64_t count_u64; unsigned long long count; /* really uint64_t */ uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ struct user_data *completion_user_data = alloc_user_data (); if (completion_user_data == NULL) return NULL; nbd_completion_callback completion = { .callback = completion_wrapper, .user_data = completion_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "K" "K" "O" "I" ":nbd_aio_zero", &py_h, &count, &offset, &completion_user_data->fn, &flags)) return NULL; h = get_handle (py_h); count_u64 = count; offset_u64 = offset; if (completion_user_data->fn != Py_None) { /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (completion_user_data->fn); if (!PyCallable_Check (completion_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter completion is not callable"); return NULL; } } else completion.callback = NULL; /* we're not going to call it */ flags_u32 = flags; ret = nbd_aio_zero (h, count_u64, offset_u64, completion, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_block_status (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; uint64_t count_u64; unsigned long long count; /* really uint64_t */ uint64_t offset_u64; unsigned long long offset; /* really uint64_t */ struct user_data *extent_user_data = alloc_user_data (); if (extent_user_data == NULL) return NULL; nbd_extent_callback extent = { .callback = extent_wrapper, .user_data = extent_user_data, .free = free_user_data }; struct user_data *completion_user_data = alloc_user_data (); if (completion_user_data == NULL) return NULL; nbd_completion_callback completion = { .callback = completion_wrapper, .user_data = completion_user_data, .free = free_user_data }; uint32_t flags_u32; unsigned int flags; /* really uint32_t */ if (!PyArg_ParseTuple (args, (char *) "O" "K" "K" "O" "O" "I" ":nbd_aio_block_status", &py_h, &count, &offset, &extent_user_data->fn, &completion_user_data->fn, &flags)) return NULL; h = get_handle (py_h); count_u64 = count; offset_u64 = offset; /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (extent_user_data->fn); if (!PyCallable_Check (extent_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter extent is not callable"); return NULL; } if (completion_user_data->fn != Py_None) { /* Increment refcount since pointer may be saved by libnbd. */ Py_INCREF (completion_user_data->fn); if (!PyCallable_Check (completion_user_data->fn)) { PyErr_SetString (PyExc_TypeError, "callback parameter completion is not callable"); return NULL; } } else completion.callback = NULL; /* we're not going to call it */ flags_u32 = flags; ret = nbd_aio_block_status (h, count_u64, offset_u64, extent, completion, flags_u32); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_get_fd (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_get_fd", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_get_fd (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_get_direction (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; unsigned ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_get_direction", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_get_direction (h); py_ret = PyLong_FromLong (ret); return py_ret; } PyObject * nbd_internal_py_aio_notify_read (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_notify_read", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_notify_read (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_aio_notify_write (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_notify_write", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_notify_write (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_aio_is_created (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_is_created", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_is_created (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_aio_is_connecting (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_is_connecting", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_is_connecting (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_aio_is_ready (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_is_ready", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_is_ready (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_aio_is_processing (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_is_processing", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_is_processing (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_aio_is_dead (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_is_dead", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_is_dead (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_aio_is_closed (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_is_closed", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_is_closed (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_aio_command_completed (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int64_t cookie_i64; long long cookie; /* really int64_t */ if (!PyArg_ParseTuple (args, (char *) "O" "L" ":nbd_aio_command_completed", &py_h, &cookie)) return NULL; h = get_handle (py_h); cookie_i64 = cookie; ret = nbd_aio_command_completed (h, cookie_i64); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_aio_peek_command_completed (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int64_t ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_peek_command_completed", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_peek_command_completed (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLongLong (ret); out: return py_ret; } PyObject * nbd_internal_py_aio_in_flight (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_aio_in_flight", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_aio_in_flight (h); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyLong_FromLong (ret); out: return py_ret; } PyObject * nbd_internal_py_connection_state (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; const char * ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_connection_state", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_connection_state (h); if (ret == NULL) { raise_exception (); py_ret = NULL; goto out; } py_ret = PyUnicode_FromString (ret); out: return py_ret; } PyObject * nbd_internal_py_get_package_name (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; const char * ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_package_name", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_package_name (h); py_ret = PyUnicode_FromString (ret); return py_ret; } PyObject * nbd_internal_py_get_version (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; const char * ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_get_version", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_get_version (h); py_ret = PyUnicode_FromString (ret); return py_ret; } PyObject * nbd_internal_py_kill_subprocess (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; int signum; if (!PyArg_ParseTuple (args, (char *) "O" "i" ":nbd_kill_subprocess", &py_h, &signum)) return NULL; h = get_handle (py_h); ret = nbd_kill_subprocess (h, signum); if (ret == -1) { raise_exception (); py_ret = NULL; goto out; } py_ret = Py_None; Py_INCREF (py_ret); out: return py_ret; } PyObject * nbd_internal_py_supports_tls (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_supports_tls", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_supports_tls (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } PyObject * nbd_internal_py_supports_uri (PyObject *self, PyObject *args) { PyObject *py_h; struct nbd_handle *h; int ret; PyObject *py_ret; if (!PyArg_ParseTuple (args, (char *) "O" ":nbd_supports_uri", &py_h)) return NULL; h = get_handle (py_h); ret = nbd_supports_uri (h); py_ret = ret ? Py_True : Py_False; Py_INCREF (py_ret); return py_ret; } ����������������������������������������������������libnbd-1.2.2/python/methods.h�����������������������������������������������������������������������0000444�0001750�0001750�00000023167�13563236631�013043� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef LIBNBD_METHODS_H #define LIBNBD_METHODS_H #define PY_SSIZE_T_CLEAN 1 #include <Python.h> #include <assert.h> struct py_aio_buffer { Py_ssize_t len; void *data; }; extern char **nbd_internal_py_get_string_list (PyObject *); extern void nbd_internal_py_free_string_list (char **); extern struct py_aio_buffer *nbd_internal_py_get_aio_buffer (PyObject *); static inline struct nbd_handle * get_handle (PyObject *obj) { assert (obj); assert (obj != Py_None); return (struct nbd_handle *) PyCapsule_GetPointer(obj, "nbd_handle"); } /* nbd.Error exception. */ extern PyObject *nbd_internal_py_Error; static inline void raise_exception () { PyObject *args = Py_BuildValue ("si", nbd_get_error (), nbd_get_errno ()); if (args != NULL) PyErr_SetObject (nbd_internal_py_Error, args); } extern PyObject *nbd_internal_py_create (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_close (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_alloc_aio_buffer (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_buffer_from_bytearray (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_buffer_to_bytearray (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_buffer_size (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_debug (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_debug (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_debug_callback (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_clear_debug_callback (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_handle_name (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_handle_name (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_export_name (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_export_name (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_tls (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_tls (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_tls_negotiated (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_tls_certificates (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_tls_verify_peer (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_tls_verify_peer (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_tls_username (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_tls_username (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_tls_psk_file (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_request_structured_replies (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_request_structured_replies (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_structured_replies_negotiated (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_handshake_flags (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_handshake_flags (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_add_meta_context (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_uri_allow_transports (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_uri_allow_tls (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_set_uri_allow_local_file (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_connect_uri (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_connect_unix (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_connect_vsock (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_connect_tcp (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_connect_socket (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_connect_command (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_connect_systemd_socket_activation (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_is_read_only (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_can_flush (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_can_fua (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_is_rotational (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_can_trim (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_can_zero (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_can_fast_zero (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_can_df (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_can_multi_conn (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_can_cache (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_can_meta_context (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_protocol (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_size (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_pread (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_pread_structured (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_pwrite (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_shutdown (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_flush (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_trim (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_cache (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_zero (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_block_status (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_poll (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_connect (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_connect_uri (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_connect_unix (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_connect_vsock (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_connect_tcp (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_connect_socket (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_connect_command (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_connect_systemd_socket_activation (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_pread (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_pread_structured (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_pwrite (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_disconnect (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_flush (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_trim (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_cache (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_zero (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_block_status (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_get_fd (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_get_direction (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_notify_read (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_notify_write (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_is_created (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_is_connecting (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_is_ready (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_is_processing (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_is_dead (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_is_closed (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_command_completed (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_peek_command_completed (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_aio_in_flight (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_connection_state (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_package_name (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_get_version (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_kill_subprocess (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_supports_tls (PyObject *self, PyObject *args); extern PyObject *nbd_internal_py_supports_uri (PyObject *self, PyObject *args); #endif /* LIBNBD_METHODS_H */ ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/utils.c�������������������������������������������������������������������������0000664�0001750�0001750�00000004026�13524776043�012533� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Miscellaneous helper functions for Python. */ #include <config.h> #define PY_SSIZE_T_CLEAN 1 #include <Python.h> #include <stdio.h> #include <stdlib.h> #include <assert.h> #include <libnbd.h> #include "methods.h" /* These two functions are used when parsing argv parameters. */ char ** nbd_internal_py_get_string_list (PyObject *obj) { size_t i, len; char **r; assert (obj); if (!PyList_Check (obj)) { PyErr_SetString (PyExc_TypeError, "expecting a list parameter"); return NULL; } Py_ssize_t slen = PyList_Size (obj); if (slen == -1) { PyErr_SetString (PyExc_RuntimeError, "get_string_list: PyList_Size failure"); return NULL; } len = (size_t) slen; r = malloc (sizeof (char *) * (len+1)); if (r == NULL) { PyErr_NoMemory (); return NULL; } for (i = 0; i < len; ++i) { PyObject *bytes = PyUnicode_AsUTF8String (PyList_GetItem (obj, i)); r[i] = strdup (PyBytes_AS_STRING (bytes)); if (r[i] == NULL) { PyErr_NoMemory (); return NULL; } } r[len] = NULL; return r; } void nbd_internal_py_free_string_list (char **argv) { size_t i; if (!argv) return; for (i = 0; argv[i] != NULL; ++i) free (argv[i]); free (argv); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/nbd.py��������������������������������������������������������������������������0000444�0001750�0001750�00000200042�13616543402�012325� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# NBD client library in userspace # WARNING: THIS FILE IS GENERATED FROM # generator/generator # ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. # # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ''' Python bindings for libnbd import nbd h = nbd.NBD () h.connect_tcp ("localhost", "nbd") buf = h.pread (512, 0) Read the libnbd(3) man page to find out how to use the API. ''' import libnbdmod # Re-export Error exception as nbd.Error, adding some methods. from libnbdmod import Error Error.__doc__ = ''' Exception thrown when the underlying libnbd call fails. This exception has three properties to query the error. Use the .string property to return a printable string containing the error message. Use the .errnum property for the associated numeric error value (which may be 0 if the error did not correspond to a system call failure), or the .errno property to return a string containing the Python errno name if one is known (which may be None if the numeric value does not correspond to a known errno name). ''' Error.string = property (lambda self: self.args[0]) def _errno (self): import errno try: return errno.errorcode[self.args[1]] except KeyError: return None Error.errno = property (_errno) Error.errnum = property (lambda self: self.args[1]) def _str (self): if self.errno: return ("%s (%s)" % (self.string, self.errno)) else: return ("%s" % self.string) Error.__str__ = _str TLS_DISABLE = 0 TLS_ALLOW = 1 TLS_REQUIRE = 2 CMD_FLAG_FUA = 1 CMD_FLAG_NO_HOLE = 2 CMD_FLAG_DF = 4 CMD_FLAG_REQ_ONE = 8 CMD_FLAG_FAST_ZERO = 16 HANDSHAKE_FLAG_FIXED_NEWSTYLE = 1 HANDSHAKE_FLAG_NO_ZEROES = 2 ALLOW_TRANSPORT_TCP = 1 ALLOW_TRANSPORT_UNIX = 2 ALLOW_TRANSPORT_VSOCK = 4 AIO_DIRECTION_READ = 1 AIO_DIRECTION_WRITE = 2 AIO_DIRECTION_BOTH = 3 READ_DATA = 1 READ_HOLE = 2 READ_ERROR = 3 NAMESPACE_BASE = "base:" CONTEXT_BASE_ALLOCATION = "base:allocation" STATE_HOLE = 1 STATE_ZERO = 2 class Buffer (object): '''Asynchronous I/O persistent buffer''' def __init__ (self, len): '''allocate an uninitialized AIO buffer used for nbd.aio_pread''' self._o = libnbdmod.alloc_aio_buffer (len) @classmethod def from_bytearray (cls, ba): '''create an AIO buffer from a bytearray''' o = libnbdmod.aio_buffer_from_bytearray (ba) self = cls (0) self._o = o return self def to_bytearray (self): '''copy an AIO buffer into a bytearray''' return libnbdmod.aio_buffer_to_bytearray (self._o) def size (self): '''return the size of an AIO buffer''' return libnbdmod.aio_buffer_size (self._o) class NBD (object): '''NBD handle''' def __init__ (self): '''create a new NBD handle''' self._o = libnbdmod.create () def __del__ (self): '''close the NBD handle and underlying connection''' libnbdmod.close (self._o) def set_debug (self, debug): '''â–¶ set or clear the debug flag Set or clear the debug flag. When debugging is enabled, debugging messages from the library are printed to stderr, unless a debugging callback has been defined too (see "nbd.set_debug_callback") in which case they are sent to that function. This flag defaults to false on newly created handles, except if "DEBUG=1" is set in the environment in which case it defaults to true. ''' return libnbdmod.set_debug (self._o, debug) def get_debug (self): '''â–¶ return the state of the debug flag Return the state of the debug flag on this handle. ''' return libnbdmod.get_debug (self._o) def set_debug_callback (self, debug): '''â–¶ set the debug callback Set the debug callback. This function is called when the library emits debug messages, when debugging is enabled on a handle. The callback parameters are "user_data" passed to this function, the name of the libnbd function emitting the debug message ("context"), and the message itself ("msg"). If no debug callback is set on a handle then messages are printed on "stderr". The callback should not call "nbd_*" APIs on the same handle since it can be called while holding the handle lock and will cause a deadlock. ''' return libnbdmod.set_debug_callback (self._o, debug) def clear_debug_callback (self): '''â–¶ clear the debug callback Remove the debug callback if one was previously associated with the handle (with "nbd.set_debug_callback"). If no callback was associated this does nothing. ''' return libnbdmod.clear_debug_callback (self._o) def set_handle_name (self, handle_name): '''â–¶ set the handle name Handles have a name which is unique within the current process. The handle name is used in debug output. Handle names are normally generated automatically and have the form "nbd1", "nbd2", etc., but you can optionally use this call to give the handles a name which is meaningful for your application to make debugging output easier to understand. ''' return libnbdmod.set_handle_name (self._o, handle_name) def get_handle_name (self): '''â–¶ get the handle name Get the name of the handle. If it was previously set by calling "nbd.set_handle_name" then this returns the name that was set. Otherwise it will return a generic name like "nbd1", "nbd2", etc. ''' return libnbdmod.get_handle_name (self._o) def set_export_name (self, export_name): '''â–¶ set the export name For servers which require an export name or can serve different content on different exports, set the "export_name" to connect to. The default is the empty string "". This is only relevant when connecting to servers using the newstyle protocol as the oldstyle protocol did not support export names. The NBD protocol limits export names to 4096 bytes, but servers may not support the full length. The encoding of export names is always UTF-8. This call may be skipped if using "nbd.connect_uri" to connect to a URI that includes an export name. ''' return libnbdmod.set_export_name (self._o, export_name) def get_export_name (self): '''â–¶ get the export name Get the export name associated with the handle. ''' return libnbdmod.get_export_name (self._o) def set_tls (self, tls): '''â–¶ enable or require TLS (authentication and encryption) Enable or require TLS (authenticated and encrypted connections) to the NBD server. The possible settings are: "TLS_DISABLE" Disable TLS. (The default setting, unless using "nbd.connect_uri" with a URI that requires TLS) "TLS_ALLOW" Enable TLS if possible. This option is insecure (or best effort) in that in some cases it will fall back to an unencrypted and/or unauthenticated connection if TLS could not be established. Use "TLS_REQUIRE" below if the connection must be encrypted. Some servers will drop the connection if TLS fails so fallback may not be possible. "TLS_REQUIRE" Require an encrypted and authenticated TLS connection. Always fail to connect if the connection is not encrypted and authenticated. As well as calling this you may also need to supply the path to the certificates directory ("nbd.set_tls_certificates"), the username ("nbd.set_tls_username") and/or the Pre-Shared Keys (PSK) file ("nbd.set_tls_psk_file"). For now, when using "nbd.connect_uri", any URI query parameters related to TLS are not handled automatically. Setting the level higher than zero will fail if libnbd was not compiled against gnutls; you can test whether this is the case with "nbd.supports_tls". ''' return libnbdmod.set_tls (self._o, tls) def get_tls (self): '''â–¶ get the TLS request setting Get the TLS request setting. Note: If you want to find out if TLS was actually negotiated on a particular connection use "nbd.get_tls_negotiated" instead. ''' return libnbdmod.get_tls (self._o) def get_tls_negotiated (self): '''â–¶ find out if TLS was negotiated on a connection After connecting you may call this to find out if the connection is using TLS. This is only really useful if you set the TLS request mode to "TLS_ALLOW" (see "nbd.set_tls"), because in this mode we try to use TLS but fall back to unencrypted if it was not available. This function will tell you if TLS was negotiated or not. In "TLS_REQUIRE" mode (the most secure) the connection would have failed if TLS could not be negotiated, and in "TLS_DISABLE" mode TLS is not tried. ''' return libnbdmod.get_tls_negotiated (self._o) def set_tls_certificates (self, dir): '''â–¶ set the path to the TLS certificates directory Set the path to the TLS certificates directory. If not set and TLS is used then a compiled in default is used. For root this is "/etc/pki/libnbd/". For non-root this is "$HOME/.pki/libnbd" and "$HOME/.config/pki/libnbd". If none of these directories can be found then the system trusted CAs are used. This function may be called regardless of whether TLS is supported, but will have no effect unless "nbd.set_tls" is also used to request or require TLS. ''' return libnbdmod.set_tls_certificates (self._o, dir) def set_tls_verify_peer (self, verify): '''â–¶ set whether we verify the identity of the server Set this flag to control whether libnbd will verify the identity of the server from the server's certificate and the certificate authority. This defaults to true when connecting to TCP servers using TLS certificate authentication, and false otherwise. This function may be called regardless of whether TLS is supported, but will have no effect unless "nbd.set_tls" is also used to request or require TLS. ''' return libnbdmod.set_tls_verify_peer (self._o, verify) def get_tls_verify_peer (self): '''â–¶ get whether we verify the identity of the server Get the verify peer flag. ''' return libnbdmod.get_tls_verify_peer (self._o) def set_tls_username (self, username): '''â–¶ set the TLS username Set the TLS client username. This is used if authenticating with PSK over TLS is enabled. If not set then the local username is used. This function may be called regardless of whether TLS is supported, but will have no effect unless "nbd.set_tls" is also used to request or require TLS. ''' return libnbdmod.set_tls_username (self._o, username) def get_tls_username (self): '''â–¶ get the current TLS username Get the current TLS username. ''' return libnbdmod.get_tls_username (self._o) def set_tls_psk_file (self, filename): '''â–¶ set the TLS Pre-Shared Keys (PSK) filename Set the TLS Pre-Shared Keys (PSK) filename. This is used if trying to authenticate to the server using with a pre-shared key. There is no default so if this is not set then PSK authentication cannot be used to connect to the server. This function may be called regardless of whether TLS is supported, but will have no effect unless "nbd.set_tls" is also used to request or require TLS. ''' return libnbdmod.set_tls_psk_file (self._o, filename) def set_request_structured_replies (self, request): '''â–¶ control use of structured replies By default, libnbd tries to negotiate structured replies with the server, as this protocol extension must be in use before "nbd_can_meta_context" or "nbd_can_df" can return true. However, for integration testing, it can be useful to clear this flag rather than find a way to alter the server to fail the negotiation request. ''' return libnbdmod.set_request_structured_replies (self._o, request) def get_request_structured_replies (self): '''â–¶ see if structured replies are attempted Return the state of the request structured replies flag on this handle. Note: If you want to find out if structured replies were actually negotiated on a particular connection use "nbd_get_structured_replies_negotiated" instead. ''' return libnbdmod.get_request_structured_replies (self._o) def get_structured_replies_negotiated (self): '''â–¶ see if structured replies are in use After connecting you may call this to find out if the connection is using structured replies. ''' return libnbdmod.get_structured_replies_negotiated (self._o) def set_handshake_flags (self, flags): '''â–¶ control use of handshake flags By default, libnbd tries to negotiate all possible handshake flags that are also supported by the server; since omitting a handshake flag can prevent the use of other functionality such as TLS encryption or structured replies. However, for integration testing, it can be useful to reduce the set of flags supported by the client to test that a particular server can handle various clients that were compliant to older versions of the NBD specification. The "flags" argument is a bitmask, including zero or more of the following handshake flags: "HANDSHAKE_FLAG_FIXED_NEWSTYLE" = 1 The server gracefully handles unknown option requests from the client, rather than disconnecting. Without this flag, a client cannot safely request to use extensions such as TLS encryption or structured replies, as the request may cause an older server to drop the connection. "HANDSHAKE_FLAG_NO_ZEROES" = 2 If the client is forced to use "NBD_OPT_EXPORT_NAME" instead of the preferred "NBD_OPT_GO", this flag allows the server to send fewer all-zero padding bytes over the connection. Future NBD extensions may add further flags. ''' return libnbdmod.set_handshake_flags (self._o, flags) def get_handshake_flags (self): '''â–¶ see which handshake flags are supported Return the state of the handshake flags on this handle. When the handle has not yet completed a connection (see "nbd_aio_is_created"), this returns the flags that the client is willing to use, provided the server also advertises those flags. After the connection is ready (see "nbd_aio_is_ready"), this returns the flags that were actually agreed on between the server and client. If the NBD protocol defines new handshake flags, then the return value from a newer library version may include bits that were undefined at the time of compilation. ''' return libnbdmod.get_handshake_flags (self._o) def add_meta_context (self, name): '''â–¶ ask server to negotiate metadata context During connection libnbd can negotiate zero or more metadata contexts with the server. Metadata contexts are features (such as "base:allocation") which describe information returned by the "nbd.block_status" command (for "base:allocation" this is whether blocks of data are allocated, zero or sparse). This call adds one metadata context to the list to be negotiated. You can call it as many times as needed. The list is initially empty when the handle is created. The NBD protocol limits meta context names to 4096 bytes, but servers may not support the full length. The encoding of meta context names is always UTF-8. Not all servers support all metadata contexts. To learn if a context was actually negotiated, call "nbd.can_meta_context" after connecting. The single parameter is the name of the metadata context, for example "CONTEXT_BASE_ALLOCATION". <libnbd.h> includes defined constants beginning with "CONTEXT_" for some well-known contexts, but you are free to pass in other contexts. Other metadata contexts are server-specific, but include "qemu:dirty-bitmap:..." for qemu-nbd (see qemu-nbd *-B* option). ''' return libnbdmod.add_meta_context (self._o, name) def set_uri_allow_transports (self, mask): '''â–¶ set the allowed transports in NBD URIs Set which transports are allowed to appear in NBD URIs. The default is to allow any transport. The "mask" parameter may contain any of the following flags ORed together: "ALLOW_TRANSPORT_TCP" "ALLOW_TRANSPORT_UNIX" "ALLOW_TRANSPORT_VSOCK" ''' return libnbdmod.set_uri_allow_transports (self._o, mask) def set_uri_allow_tls (self, tls): '''â–¶ set the allowed TLS settings in NBD URIs Set which TLS settings are allowed to appear in NBD URIs. The default is to allow either non-TLS or TLS URIs. The "tls" parameter can be: "TLS_DISABLE" TLS URIs are not permitted, ie. a URI such as "nbds://..." will be rejected. "TLS_ALLOW" This is the default. TLS may be used or not, depending on whether the URI uses "nbds" or "nbd". "TLS_REQUIRE" TLS URIs are required. All URIs must use "nbds". ''' return libnbdmod.set_uri_allow_tls (self._o, tls) def set_uri_allow_local_file (self, allow): '''â–¶ set the allowed transports in NBD URIs Allow NBD URIs to reference local files. This is *disabled* by default. Currently this setting only controls whether the "tls-psk-file" parameter in NBD URIs is allowed. ''' return libnbdmod.set_uri_allow_local_file (self._o, allow) def connect_uri (self, uri): '''â–¶ connect to NBD URI Connect (synchronously) to an NBD server and export by specifying the NBD URI. This call parses the URI and may call "nbd.set_export_name" and "nbd.set_tls" and other calls as needed, followed by "nbd.connect_tcp" or "nbd.connect_unix". This call returns when the connection has been made. Example URIs supported "nbd://example.com" Connect over TCP, unencrypted, to "example.com" port 10809. "nbds://example.com" Connect over TCP with TLS, to "example.com" port 10809. If the server does not support TLS then this will fail. "nbd+unix:///foo?socket=/tmp/nbd.sock" Connect over the Unix domain socket /tmp/nbd.sock to an NBD server running locally. The export name is set to "foo" (note without any leading "/" character). "nbd+vsock:///" In this scenario libnbd is running in a virtual machine. Connect over "AF_VSOCK" to an NBD server running on the hypervisor. Supported URI formats The following schemes are supported in the current version of libnbd: "nbd:" Connect over TCP without using TLS. "nbds:" Connect over TCP. TLS is required and the connection will fail if the server does not support TLS. "nbd+unix:" "nbds+unix:" Connect over a Unix domain socket, without or with TLS respectively. The "socket" parameter is required. "nbd+vsock:" "nbds+vsock:" Connect over the "AF_VSOCK" transport, without or with TLS respectively. The authority part of the URI ("[username@][servername][:port]") is parsed depending on the transport. For TCP it specifies the server to connect to and optional port number. For "+unix" it should not be present. For "+vsock" the server name is the numeric CID (eg. 2 to connect to the host), and the optional port number may be present. If the "username" is present it is used for TLS authentication. For all transports, an export name may be present, parsed in accordance with the NBD URI specification. Finally the query part of the URI can contain: socket=SOCKET Specifies the Unix domain socket to connect on. Must be present for the "+unix" transport and must not be present for the other transports. tls-psk-file=PSKFILE Set the PSK file. See "nbd.set_tls_psk_file". Note this is not allowed by default - see next section. Disable URI features For security reasons you might want to disable certain URI features. Pre-filtering URIs is error-prone and should not be attempted. Instead use the libnbd APIs below to control what can appear in URIs. Note you must call these functions on the same handle before calling "nbd_connect_uri" or "nbd.aio_connect_uri". TCP, Unix domain socket or "AF_VSOCK" transports Default: all allowed To select which transports are allowed call "nbd.set_uri_allow_transports". TLS Default: both non-TLS and TLS connections allowed To force TLS off or on in URIs call "nbd.set_uri_allow_tls". Connect to Unix domain socket in the local filesystem Default: allowed To prevent this you must disable the "+unix" transport using "nbd.set_uri_allow_transports". Read from local files Default: denied To allow URIs to contain references to local files (eg. for parameters like "tls-psk-file") call "nbd.set_uri_allow_local_file". Optional features This call will fail if libnbd was not compiled with libxml2; you can test whether this is the case with "nbd.supports_uri". Support for URIs that require TLS will fail if libnbd was not compiled with gnutls; you can test whether this is the case with "nbd.supports_tls". ''' return libnbdmod.connect_uri (self._o, uri) def connect_unix (self, unixsocket): '''â–¶ connect to NBD server over a Unix domain socket Connect (synchronously) over the named Unix domain socket ("unixsocket") to an NBD server running on the same machine. This call returns when the connection has been made. ''' return libnbdmod.connect_unix (self._o, unixsocket) def connect_vsock (self, cid, port): '''â–¶ connect to NBD server over AF_VSOCK protocol Connect (synchronously) over the "AF_VSOCK" protocol from a virtual machine to an NBD server, usually running on the host. The "cid" and "port" parameters specify the server address. Usually "cid" should be 2 (to connect to the host), and "port" might be 10809 or another port number assigned to you by the host administrator. This call returns when the connection has been made. ''' return libnbdmod.connect_vsock (self._o, cid, port) def connect_tcp (self, hostname, port): '''â–¶ connect to NBD server over a TCP port Connect (synchronously) to the NBD server listening on "hostname:port". The "port" may be a port name such as "nbd", or it may be a port number as a string such as "10809". This call returns when the connection has been made. ''' return libnbdmod.connect_tcp (self._o, hostname, port) def connect_socket (self, sock): '''â–¶ connect directly to a connected socket Pass a connected socket (file descriptor) which libnbd will talk to. The program is responsible for connecting this somehow to an NBD server. Once the socket is passed to libnbd it is the responsibility of libnbd. Libnbd may read and write to it, set it to non-blocking, etc., and will finally close it when the handle is closed. The program must no longer use the socket. ''' return libnbdmod.connect_socket (self._o, sock) def connect_command (self, argv): '''â–¶ connect to NBD server command Run the command as a subprocess and connect to it over stdin/stdout. This is for use with NBD servers which can behave like inetd clients, such as "nbdkit --single". Subprocess Libnbd will fork the "argv" command and pass the NBD socket to it using file descriptors 0 and 1 (stdin/stdout): ┌─────────┬─────────┠┌────────────────┠│ program │ libnbd │ │ NBD server │ │ │ │ │ (argv) │ │ │ socket â•â•â•â•â•â•â•â•â–¶ stdin/stdout │ └─────────┴─────────┘ └────────────────┘ When the NBD handle is closed the server subprocess is killed. ''' return libnbdmod.connect_command (self._o, argv) def connect_systemd_socket_activation (self, argv): '''â–¶ connect using systemd socket activation Run the command as a subprocess and connect to it using systemd socket activation. This is especially useful for running qemu-nbd(1) as a subprocess of libnbd, for example to use it to open qcow2 files. To run nbdkit as a subprocess it is usually better to use "nbd.connect_command". Socket activation Libnbd will fork the "argv" command and pass an NBD socket to it using special "LISTEN_*" environment variables (as defined by the systemd socket activation protocol). ┌─────────┬─────────┠┌───────────────┠│ program │ libnbd │ │ qemu-nbd or │ │ │ │ │ other server │ │ │ socket â•â•â•â•â•â•â•â•â–¶ │ └─────────┴─────────┘ └───────────────┘ When the NBD handle is closed the server subprocess is killed. ''' return libnbdmod.connect_systemd_socket_activation (self._o, argv) def is_read_only (self): '''â–¶ is the NBD export read-only? Returns true if the NBD export is read-only; writes and write-like operations will fail. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.is_read_only (self._o) def can_flush (self): '''â–¶ does the server support the flush command? Returns true if the server supports the flush command (see "nbd.flush", "nbd.aio_flush"). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.can_flush (self._o) def can_fua (self): '''â–¶ does the server support the FUA flag? Returns true if the server supports the FUA flag on certain commands (see "nbd.pwrite"). This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.can_fua (self._o) def is_rotational (self): '''â–¶ is the NBD disk rotational (like a disk)? Returns true if the disk exposed over NBD is rotational (like a traditional floppy or hard disk). Returns false if the disk has no penalty for random access (like an SSD or RAM disk). This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.is_rotational (self._o) def can_trim (self): '''â–¶ does the server support the trim command? Returns true if the server supports the trim command (see "nbd.trim", "nbd.aio_trim"). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.can_trim (self._o) def can_zero (self): '''â–¶ does the server support the zero command? Returns true if the server supports the zero command (see "nbd.zero", "nbd.aio_zero"). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.can_zero (self._o) def can_fast_zero (self): '''â–¶ does the server support the fast zero flag? Returns true if the server supports the use of the "CMD_FLAG_FAST_ZERO" flag to the zero command (see "nbd_zero", "nbd_aio_zero"). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.can_fast_zero (self._o) def can_df (self): '''â–¶ does the server support the don't fragment flag to pread? Returns true if the server supports structured reads with an ability to request a non-fragmented read (see "nbd.pread_structured", "nbd.aio_pread_structured"). Returns false if the server either lacks structured reads or if it does not support a non-fragmented read request. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.can_df (self._o) def can_multi_conn (self): '''â–¶ does the server support multi-conn? Returns true if the server supports multi-conn. Returns false if the server does not. It is not safe to open multiple handles connecting to the same server if you will write to the server and the server does not advertise multi-conn support. The safe way to check for this is to open one connection, check this flag is true, then open further connections as required. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.can_multi_conn (self._o) def can_cache (self): '''â–¶ does the server support the cache command? Returns true if the server supports the cache command (see "nbd.cache", "nbd.aio_cache"). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.can_cache (self._o) def can_meta_context (self, metacontext): '''â–¶ does the server support a specific meta context? Returns true if the server supports the given meta context (see "nbd.add_meta_context"). Returns false if the server does not. The single parameter is the name of the metadata context, for example "CONTEXT_BASE_ALLOCATION". <libnbd.h> includes defined constants for well-known namespace contexts beginning with "CONTEXT_", but you are free to pass in other contexts. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.can_meta_context (self._o, metacontext) def get_protocol (self): '''â–¶ return the NBD protocol variant Return the NBD protocol variant in use on the connection. At the moment this returns one of the strings "oldstyle", "newstyle" or "newstyle-fixed". Other strings might be returned in the future. Most modern NBD servers use "newstyle-fixed". This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.get_protocol (self._o) def get_size (self): '''â–¶ return the export size Returns the size in bytes of the NBD export. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. ''' return libnbdmod.get_size (self._o) def pread (self, count, offset, flags=0): '''â–¶ read from the NBD server Issue a read command to the NBD server for the range starting at "offset" and ending at "offset" + "count" - 1. NBD can only read all or nothing using this call. The call returns when the data has been read fully into "buf" or there is an error. See also "nbd.pread_structured", if finer visibility is required into the server's replies, or if you want to use "CMD_FLAG_DF". The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). ''' return libnbdmod.pread (self._o, count, offset, flags) def pread_structured (self, count, offset, chunk, flags=0): '''â–¶ read from the NBD server Issue a read command to the NBD server for the range starting at "offset" and ending at "offset" + "count" - 1. The server's response may be subdivided into chunks which may arrive out of order before reassembly into the original buffer; the "chunk" callback is used for notification after each chunk arrives, and may perform additional sanity checking on the server's reply. The callback cannot call "nbd_*" APIs on the same handle since it holds the handle lock and will cause a deadlock. If the callback returns -1, and no earlier error has been detected, then the overall read command will fail with any non-zero value stored into the callback's "error" parameter (with a default of "EPROTO"); but any further chunks will still invoke the callback. The "chunk" function is called once per chunk of data received, with the "user_data" passed to this function. The "subbuf" and "count" parameters represent the subset of the original buffer which has just been populated by results from the server (in C, "subbuf" always points within the original "buf"; but this guarantee may not extend to other language bindings). The "offset" parameter represents the absolute offset at which "subbuf" begins within the image (note that this is not the relative offset of "subbuf" within the original buffer "buf"). Changes to "error" on output are ignored unless the callback fails. The input meaning of the "error" parameter is controlled by the "status" parameter, which is one of "READ_DATA" = 1 "subbuf" was populated with "count" bytes of data. On input, "error" contains the errno value of any earlier detected error, or zero. "READ_HOLE" = 2 "subbuf" represents a hole, and contains "count" NUL bytes. On input, "error" contains the errno value of any earlier detected error, or zero. "READ_ERROR" = 3 "count" is 0, so "subbuf" is unusable. On input, "error" contains the errno value reported by the server as occurring while reading that "offset", regardless if any earlier error has been detected. Future NBD extensions may permit other values for "status", but those will not be returned to a client that has not opted in to requesting such extensions. If the server is non-compliant, it is possible for the "chunk" function to be called more times than you expect or with "count" 0 for "READ_DATA" or "READ_HOLE". It is also possible that the "chunk" function is not called at all (in particular, "READ_ERROR" is used only when an error is associated with a particular offset, and not when the server reports a generic error), but you are guaranteed that the callback was called at least once if the overall read succeeds. Libnbd does not validate that the server obeyed the requirement that a read call must not have overlapping chunks and must not succeed without enough chunks to cover the entire request. The "flags" parameter may be 0 for no flags, or may contain "CMD_FLAG_DF" meaning that the server should not reply with more than one fragment (if that is supported - some servers cannot do this, see "nbd.can_df"). Libnbd does not validate that the server actually obeys the flag. ''' return libnbdmod.pread_structured (self._o, count, offset, chunk, flags) def pwrite (self, buf, offset, flags=0): '''â–¶ write to the NBD server Issue a write command to the NBD server, writing the data in "buf" to the range starting at "offset" and ending at "offset" + "count" - 1. NBD can only write all or nothing using this call. The call returns when the command has been acknowledged by the server, or there is an error. The "flags" parameter may be 0 for no flags, or may contain "CMD_FLAG_FUA" meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see "nbd.can_fua"). ''' return libnbdmod.pwrite (self._o, buf, offset, flags) def shutdown (self, flags=0): '''â–¶ disconnect from the NBD server Issue the disconnect command to the NBD server. This is a nice way to tell the server we are going away, but from the client's point of view has no advantage over abruptly closing the connection (see "nbd.close"). This function works whether or not the handle is ready for transmission of commands, and as such does not take a "flags" parameter. If more fine-grained control is needed, see "nbd.aio_disconnect". The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). ''' return libnbdmod.shutdown (self._o, flags) def flush (self, flags=0): '''â–¶ send flush command to the NBD server Issue the flush command to the NBD server. The function should return when all write commands which have completed have been committed to permanent storage on the server. Note this will return an error if "nbd.can_flush" is false. The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). ''' return libnbdmod.flush (self._o, flags) def trim (self, count, offset, flags=0): '''â–¶ send trim command to the NBD server Issue a trim command to the NBD server, which if supported by the server causes a hole to be punched in the backing store starting at "offset" and ending at "offset" + "count" - 1. The call returns when the command has been acknowledged by the server, or there is an error. The "flags" parameter may be 0 for no flags, or may contain "CMD_FLAG_FUA" meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see "nbd.can_fua"). ''' return libnbdmod.trim (self._o, count, offset, flags) def cache (self, count, offset, flags=0): '''â–¶ send cache (prefetch) command to the NBD server Issue the cache (prefetch) command to the NBD server, which if supported by the server causes data to be prefetched into faster storage by the server, speeding up a subsequent "nbd.pread" call. The server can also silently ignore this command. Note this will return an error if "nbd.can_cache" is false. The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). ''' return libnbdmod.cache (self._o, count, offset, flags) def zero (self, count, offset, flags=0): '''â–¶ send write zeroes command to the NBD server Issue a write zeroes command to the NBD server, which if supported by the server causes a zeroes to be written efficiently starting at "offset" and ending at "offset" + "count" - 1. The call returns when the command has been acknowledged by the server, or there is an error. The "flags" parameter may be 0 for no flags, or may contain "CMD_FLAG_FUA" meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see "nbd.can_fua"), "CMD_FLAG_NO_HOLE" meaning that the server should favor writing actual allocated zeroes over punching a hole, and/or "CMD_FLAG_FAST_ZERO" meaning that the server must fail quickly if writing zeroes is no faster than a normal write (if that is supported - some servers cannot do this, see "nbd.can_fast_zero"). ''' return libnbdmod.zero (self._o, count, offset, flags) def block_status (self, count, offset, extent, flags=0): '''â–¶ send block status command to the NBD server Issue the block status command to the NBD server. If supported by the server, this causes metadata context information about blocks beginning from the specified offset to be returned. The "count" parameter is a hint: the server may choose to return less status, or the final block may extend beyond the requested range. If multiple contexts are supported, the number of blocks and cumulative length of those blocks need not be identical between contexts. Depending on which metadata contexts were enabled before connecting (see "nbd.add_meta_context") and which are supported by the server (see "nbd.can_meta_context") this call returns information about extents by calling back to the "extent" function. The callback cannot call "nbd_*" APIs on the same handle since it holds the handle lock and will cause a deadlock. If the callback returns -1, and no earlier error has been detected, then the overall block status command will fail with any non-zero value stored into the callback's "error" parameter (with a default of "EPROTO"); but any further contexts will still invoke the callback. The "extent" function is called once per type of metadata available, with the "user_data" passed to this function. The "metacontext" parameter is a string such as "base:allocation". The "entries" array is an array of pairs of integers with the first entry in each pair being the length (in bytes) of the block and the second entry being a status/flags field which is specific to the metadata context. (The number of pairs passed to the function is "nr_entries/2".) The NBD protocol document in the section about "NBD_REPLY_TYPE_BLOCK_STATUS" describes the meaning of this array; for contexts known to libnbd, <libnbd.h> contains constants beginning with "STATE_" that may help decipher the values. On entry to the callback, the "error" parameter contains the errno value of any previously detected error. It is possible for the extent function to be called more times than you expect (if the server is buggy), so always check the "metacontext" field to ensure you are receiving the data you expect. It is also possible that the extent function is not called at all, even for metadata contexts that you requested. This indicates either that the server doesn't support the context or for some other reason cannot return the data. The "flags" parameter may be 0 for no flags, or may contain "CMD_FLAG_REQ_ONE" meaning that the server should return only one extent per metadata context where that extent does not exceed "count" bytes; however, libnbd does not validate that the server obeyed the flag. ''' return libnbdmod.block_status (self._o, count, offset, extent, flags) def poll (self, timeout): '''â–¶ poll the handle once This is a simple implementation of poll(2) which is used internally by synchronous API calls. On success, it returns 0 if the "timeout" (in milliseconds) occurs, or 1 if the poll completed and the state machine progressed. Set "timeout" to -1 to block indefinitely (but be careful that eventual action is actually expected - for example, if the connection is established but there are no commands in flight, using an infinite timeout will permanently block). This function is mainly useful as an example of how you might integrate libnbd with your own main loop, rather than being intended as something you would use. ''' return libnbdmod.poll (self._o, timeout) def aio_connect (self, addr): '''â–¶ connect to the NBD server Begin connecting to the NBD server. The "addr" and "addrlen" parameters specify the address of the socket to connect to. You can check if the connection is still connecting by calling "nbd.aio_is_connecting", or if it has connected to the server and completed the NBD handshake by calling "nbd.aio_is_ready", on the connection. ''' return libnbdmod.aio_connect (self._o, addr) def aio_connect_uri (self, uri): '''â–¶ connect to an NBD URI Begin connecting to the NBD URI "uri". Parameters behave as documented in "nbd.connect_uri". You can check if the connection is still connecting by calling "nbd.aio_is_connecting", or if it has connected to the server and completed the NBD handshake by calling "nbd.aio_is_ready", on the connection. ''' return libnbdmod.aio_connect_uri (self._o, uri) def aio_connect_unix (self, unixsocket): '''â–¶ connect to the NBD server over a Unix domain socket Begin connecting to the NBD server over Unix domain socket ("unixsocket"). Parameters behave as documented in "nbd.connect_unix". You can check if the connection is still connecting by calling "nbd.aio_is_connecting", or if it has connected to the server and completed the NBD handshake by calling "nbd.aio_is_ready", on the connection. ''' return libnbdmod.aio_connect_unix (self._o, unixsocket) def aio_connect_vsock (self, cid, port): '''â–¶ connect to the NBD server over AF_VSOCK socket Begin connecting to the NBD server over the "AF_VSOCK" protocol to the server "cid:port". Parameters behave as documented in "nbd.connect_vsock". You can check if the connection is still connecting by calling "nbd.aio_is_connecting", or if it has connected to the server and completed the NBD handshake by calling "nbd.aio_is_ready", on the connection. ''' return libnbdmod.aio_connect_vsock (self._o, cid, port) def aio_connect_tcp (self, hostname, port): '''â–¶ connect to the NBD server over a TCP port Begin connecting to the NBD server listening on "hostname:port". Parameters behave as documented in "nbd.connect_tcp". You can check if the connection is still connecting by calling "nbd.aio_is_connecting", or if it has connected to the server and completed the NBD handshake by calling "nbd.aio_is_ready", on the connection. ''' return libnbdmod.aio_connect_tcp (self._o, hostname, port) def aio_connect_socket (self, sock): '''â–¶ connect directly to a connected socket Begin connecting to the connected socket "fd". Parameters behave as documented in "nbd.connect_socket". You can check if the connection is still connecting by calling "nbd.aio_is_connecting", or if it has connected to the server and completed the NBD handshake by calling "nbd.aio_is_ready", on the connection. ''' return libnbdmod.aio_connect_socket (self._o, sock) def aio_connect_command (self, argv): '''â–¶ connect to the NBD server Run the command as a subprocess and begin connecting to it over stdin/stdout. Parameters behave as documented in "nbd.connect_command". You can check if the connection is still connecting by calling "nbd.aio_is_connecting", or if it has connected to the server and completed the NBD handshake by calling "nbd.aio_is_ready", on the connection. ''' return libnbdmod.aio_connect_command (self._o, argv) def aio_connect_systemd_socket_activation (self, argv): '''â–¶ connect using systemd socket activation Run the command as a subprocess and begin connecting to it using systemd socket activation. Parameters behave as documented in "nbd.connect_systemd_socket_activation". You can check if the connection is still connecting by calling "nbd.aio_is_connecting", or if it has connected to the server and completed the NBD handshake by calling "nbd.aio_is_ready", on the connection. ''' return libnbdmod.aio_connect_systemd_socket_activation (self._o, argv) def aio_pread (self, buf, offset, completion=None, flags=0): '''â–¶ read from the NBD server Issue a read command to the NBD server. To check if the command completed, call "nbd.aio_command_completed". Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Note that you must ensure "buf" is valid until the command has completed. Other parameters behave as documented in "nbd.pread". ''' return libnbdmod.aio_pread (self._o, buf._o, offset, completion, flags) def aio_pread_structured (self, buf, offset, chunk, completion=None, flags=0): '''â–¶ read from the NBD server Issue a read command to the NBD server. To check if the command completed, call "nbd.aio_command_completed". Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in "nbd.pread_structured". ''' return libnbdmod.aio_pread_structured (self._o, buf._o, offset, chunk, completion, flags) def aio_pwrite (self, buf, offset, completion=None, flags=0): '''â–¶ write to the NBD server Issue a write command to the NBD server. To check if the command completed, call "nbd.aio_command_completed". Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Note that you must ensure "buf" is valid until the command has completed. Other parameters behave as documented in "nbd.pwrite". ''' return libnbdmod.aio_pwrite (self._o, buf._o, offset, completion, flags) def aio_disconnect (self, flags=0): '''â–¶ disconnect from the NBD server Issue the disconnect command to the NBD server. This is not a normal command because NBD servers are not obliged to send a reply. Instead you should wait for "nbd.aio_is_closed" to become true on the connection. Once this command is issued, you cannot issue any further commands. Although libnbd does not prevent you from issuing this command while still waiting on the replies to previous commands, the NBD protocol recommends that you wait until there are no other commands in flight (see "nbd.aio_in_flight"), to give the server a better chance at a clean shutdown. The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). There is no direct synchronous counterpart; however, "nbd.shutdown" will call this function if appropriate. ''' return libnbdmod.aio_disconnect (self._o, flags) def aio_flush (self, completion=None, flags=0): '''â–¶ send flush command to the NBD server Issue the flush command to the NBD server. To check if the command completed, call "nbd.aio_command_completed". Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in "nbd.flush". ''' return libnbdmod.aio_flush (self._o, completion, flags) def aio_trim (self, count, offset, completion=None, flags=0): '''â–¶ send trim command to the NBD server Issue a trim command to the NBD server. To check if the command completed, call "nbd.aio_command_completed". Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in "nbd.trim". ''' return libnbdmod.aio_trim (self._o, count, offset, completion, flags) def aio_cache (self, count, offset, completion=None, flags=0): '''â–¶ send cache (prefetch) command to the NBD server Issue the cache (prefetch) command to the NBD server. To check if the command completed, call "nbd.aio_command_completed". Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in "nbd.cache". ''' return libnbdmod.aio_cache (self._o, count, offset, completion, flags) def aio_zero (self, count, offset, completion=None, flags=0): '''â–¶ send write zeroes command to the NBD server Issue a write zeroes command to the NBD server. To check if the command completed, call "nbd.aio_command_completed". Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in "nbd.zero". ''' return libnbdmod.aio_zero (self._o, count, offset, completion, flags) def aio_block_status (self, count, offset, extent, completion=None, flags=0): '''â–¶ send block status command to the NBD server Send the block status command to the NBD server. To check if the command completed, call "nbd.aio_command_completed". Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in "nbd.block_status". ''' return libnbdmod.aio_block_status (self._o, count, offset, extent, completion, flags) def aio_get_fd (self): '''â–¶ return file descriptor associated with this connection Return the underlying file descriptor associated with this connection. You can use this to check if the file descriptor is ready for reading or writing and call "nbd.aio_notify_read" or "nbd.aio_notify_write". See also "nbd.aio_get_direction". Do not do anything else with the file descriptor. ''' return libnbdmod.aio_get_fd (self._o) def aio_get_direction (self): '''â–¶ return the read or write direction Return the current direction of this connection, which means whether we are next expecting to read data from the server, write data to the server, or both. It returns 0 We are not expected to interact with the server file descriptor from the current state. It is not worth attempting to use poll(2); if the connection is not dead, then state machine progress must instead come from some other means such as "nbd.aio_connect". "AIO_DIRECTION_READ" = 1 We are expected next to read from the server. If using poll(2) you would set "events = POLLIN". If "revents" returns "POLLIN" or "POLLHUP" you would then call "nbd.aio_notify_read". Note that once libnbd reaches "nbd.aio_is_ready", this direction is returned even when there are no commands in flight (see "nbd.aio_in_flight"). In a single-threaded use of libnbd, it is not worth polling until after issuing a command, as otherwise the server will never wake up the poll. In a multi-threaded scenario, you can have one thread begin a polling loop prior to any commands, but any other thread that issues a command will need a way to kick the polling thread out of poll in case issuing the command changes the needed polling direction. Possible ways to do this include polling for activity on a pipe-to-self, or using pthread_kill(3) to send a signal that is masked except during ppoll(2). "AIO_DIRECTION_WRITE" = 2 We are expected next to write to the server. If using poll(2) you would set "events = POLLOUT". If "revents" returns "POLLOUT" you would then call "nbd.aio_notify_write". "AIO_DIRECTION_BOTH" = 3 We are expected next to either read or write to the server. If using poll(2) you would set "events = POLLIN|POLLOUT". If only one of "POLLIN" or "POLLOUT" is returned, then see above. However, if both are returned, it is better to call only "nbd.aio_notify_read", as processing the server's reply may change the state of the connection and invalidate the need to write more commands. ''' return libnbdmod.aio_get_direction (self._o) def aio_notify_read (self): '''â–¶ notify that the connection is readable Send notification to the state machine that the connection is readable. Typically this is called after your main loop has detected that the file descriptor associated with this connection is readable. ''' return libnbdmod.aio_notify_read (self._o) def aio_notify_write (self): '''â–¶ notify that the connection is writable Send notification to the state machine that the connection is writable. Typically this is called after your main loop has detected that the file descriptor associated with this connection is writable. ''' return libnbdmod.aio_notify_write (self._o) def aio_is_created (self): '''â–¶ check if the connection has just been created Return true if this connection has just been created. This is the state before the handle has started connecting to a server. In this state the handle can start to be connected by calling functions such as "nbd.aio_connect". ''' return libnbdmod.aio_is_created (self._o) def aio_is_connecting (self): '''â–¶ check if the connection is connecting or handshaking Return true if this connection is connecting to the server or in the process of handshaking and negotiating options which happens before the handle becomes ready to issue commands (see "nbd.aio_is_ready"). ''' return libnbdmod.aio_is_connecting (self._o) def aio_is_ready (self): '''â–¶ check if the connection is in the ready state Return true if this connection is connected to the NBD server, the handshake has completed, and the connection is idle or waiting for a reply. In this state the handle is ready to issue commands. ''' return libnbdmod.aio_is_ready (self._o) def aio_is_processing (self): '''â–¶ check if the connection is processing a command Return true if this connection is connected to the NBD server, the handshake has completed, and the connection is processing commands (either writing out a request or reading a reply). Note the ready state ("nbd.aio_is_ready") is not included. In the ready state commands may be *in flight* (the *server* is processing them), but libnbd is not processing them. ''' return libnbdmod.aio_is_processing (self._o) def aio_is_dead (self): '''â–¶ check if the connection is dead Return true if the connection has encountered a fatal error and is dead. In this state the handle may only be closed. There is no way to recover a handle from the dead state. ''' return libnbdmod.aio_is_dead (self._o) def aio_is_closed (self): '''â–¶ check if the connection is closed Return true if the connection has closed. There is no way to reconnect a closed connection. Instead you must close the whole handle. ''' return libnbdmod.aio_is_closed (self._o) def aio_command_completed (self, cookie): '''â–¶ check if the command completed Return true if the command completed. If this function returns true then the command was successful and it has been retired. Return false if the command is still in flight. This can also fail with an error in case the command failed (in this case the command is also retired). A command is retired either via this command, or by using a completion callback which returns 1. The "cookie" parameter is the positive unique 64 bit cookie for the command, as returned by a call such as "nbd.aio_pread". ''' return libnbdmod.aio_command_completed (self._o, cookie) def aio_peek_command_completed (self): '''â–¶ check if any command has completed Return the unique positive 64 bit cookie of the first non-retired but completed command, 0 if there are in-flight commands but none of them are awaiting retirement, or -1 on error including when there are no in-flight commands. Any cookie returned by this function must still be passed to "nbd.aio_command_completed" to actually retire the command and learn whether the command was successful. ''' return libnbdmod.aio_peek_command_completed (self._o) def aio_in_flight (self): '''â–¶ check how many aio commands are still in flight Return the number of in-flight aio commands that are still awaiting a response from the server before they can be retired. If this returns a non-zero value when requesting a disconnect from the server (see "nbd.aio_disconnect" and "nbd.shutdown"), libnbd does not try to wait for those commands to complete gracefully; if the server strands commands while shutting down, "nbd.aio_command_completed" will report those commands as failed with a status of "ENOTCONN". ''' return libnbdmod.aio_in_flight (self._o) def connection_state (self): '''â–¶ return string describing the state of the connection Returns a descriptive string for the state of the connection. This can be used for debugging or troubleshooting, but you should not rely on the state of connections since it may change in future versions. ''' return libnbdmod.connection_state (self._o) def get_package_name (self): '''â–¶ return the name of the library Returns the name of the library, always "libnbd" unless the library was modified with another name at compile time. ''' return libnbdmod.get_package_name (self._o) def get_version (self): '''â–¶ return the version of the library Return the version of libnbd. This is returned as a string in the form "major.minor.release" where each of major, minor and release is a small positive integer. For example: minor ↓ "1.0.3" ↑ ↑ major release major = 0 The major number was 0 for the early experimental versions of libnbd where we still had an unstable API. major = 1 The major number is 1 for the versions of libnbd with a long-term stable API and ABI. It is not anticipated that major will be any number other than 1. minor = 0, 2, ... (even) The minor number is even for stable releases. minor = 1, 3, ... (odd) The minor number is odd for development versions. Note that new APIs added in a development version remain experimental and subject to change in that branch until they appear in a stable release. release The release number is incremented for each release along a particular branch. ''' return libnbdmod.get_version (self._o) def kill_subprocess (self, signum): '''â–¶ kill server running as a subprocess This call may be used to kill the server running as a subprocess that was previously created using "nbd.connect_command". You do not need to use this call. It is only needed if the server does not exit when the socket is closed. The "signum" parameter is the optional signal number to send (see signal(7)). If "signum" is 0 then "SIGTERM" is sent. ''' return libnbdmod.kill_subprocess (self._o, signum) def supports_tls (self): '''â–¶ true if libnbd was compiled with support for TLS Returns true if libnbd was compiled with gnutls which is required to support TLS encryption, or false if not. ''' return libnbdmod.supports_tls (self._o) def supports_uri (self): '''â–¶ true if libnbd was compiled with support for NBD URIs Returns true if libnbd was compiled with libxml2 which is required to support NBD URIs, or false if not. ''' return libnbdmod.supports_uri (self._o) package_name = NBD().get_package_name() __version__ = NBD().get_version() if __name__ == "__main__": import nbdsh nbdsh.shell() ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/python/nbdsh.py������������������������������������������������������������������������0000664�0001750�0001750�00000005705�13571455321�012677� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# NBD client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # The NBD shell. def shell(): import argparse import code import sys import nbd description = '''Network Block Device (NBD) shell''' epilog = '''Please read the nbdsh(1) manual page for full usage.''' parser = argparse.ArgumentParser (prog='nbdsh', description=description, epilog=epilog) parser.add_argument ('--base-allocation', action='store_true', help='request the "base:allocation" meta context') parser.add_argument ('-u', '--uri', help="connect to NBD URI") # For back-compat, provide --connect as an undocumented synonym to --uri parser.add_argument ('--connect', dest='uri', help=argparse.SUPPRESS) parser.add_argument ('-c', '--command', action='append', help="run a command") parser.add_argument ('-V', '--version', action='version', version=nbd.package_name + ' ' + nbd.__version__) args = parser.parse_args () h = nbd.NBD () h.set_handle_name ("nbdsh") sys.ps1 = "nbd> " banner = ''' Welcome to nbdsh, the shell for interacting with Network Block Device (NBD) servers. The ‘nbd’ module has already been imported and there is an open NBD handle called ‘h’. h.connect_tcp ("remote", "10809") # Connect to a remote server. h.get_size () # Get size of the remote disk. buf = h.pread (512, 0, 0) # Read the first sector. exit() or Ctrl-D # Quit the shell help (nbd) # Display documentation ''' if args.base_allocation: h.add_meta_context (nbd.CONTEXT_BASE_ALLOCATION) if args.uri is not None: h.connect_uri (args.uri) # If there are no -c or --command parameters, go interactive, # otherwise we run the commands and exit. if not args.command: code.interact (banner = banner, local = locals(), exitmsg = '') else: # https://stackoverflow.com/a/11754346 d = dict (locals(), **globals()) for c in args.command: if c != '-': exec (c, d, d) else: exec (sys.stdin.read (), d, d) �����������������������������������������������������������libnbd-1.2.2/sh/������������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�010401� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/examples/���������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�012217� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/examples/LICENSE-FOR-EXAMPLES�������������������������������������������������������0000664�0001750�0001750�00000003446�13524776043�015010� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������The files in the sh/examples/ directory are licensed under this very permissive BSD license. This means that you can copy, use, adapt and modify them without any significant restrictions. You can also combine them with proprietary code or include them in code that is distributed under other open source licenses. ---------------------------------------------------------------------- libnbd examples Copyright (C) 2013-2019 Red Hat Inc. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Red Hat nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/examples/hexdump.sh�����������������������������������������������������������������0000775�0001750�0001750�00000000271�13524776043�014145� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������nbdsh -c - <<'EOF' from subprocess import * h.connect_uri ("nbd://localhost") bootsect = h.pread (512, 0) p = Popen ("hexdump -C", shell=True, stdin=PIPE) p.stdin.write (bootsect) EOF ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/Makefile.am�������������������������������������������������������������������������0000664�0001750�0001750�00000003101�13536643733�012347� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk EXTRA_DIST = \ nbdsh.pod \ examples/LICENSE-FOR-EXAMPLES \ examples/hexdump.sh \ test-context.sh \ test-help.sh \ test-pattern.sh \ test-version.sh \ $(NULL) if HAVE_PYTHON bin_SCRIPTS = nbdsh if HAVE_POD man_MANS = nbdsh.1 CLEANFILES += $(man_MANS) nbdsh.1: nbdsh.pod $(top_builddir)/podwrapper.pl $(PODWRAPPER) --section=1 --man $@ \ --html $(top_builddir)/html/$@.html \ --verbatim $(srcdir)/examples/hexdump.sh:__EXAMPLES_HEXDUMP__ \ $< endif HAVE_POD TESTS_ENVIRONMENT = LIBNBD_DEBUG=1 NBDKIT_DEBUG=1 EXP_VERSION=$(VERSION) LOG_COMPILER = $(top_builddir)/run TESTS = \ test-help.sh \ test-version.sh \ $(NULL) if HAVE_NBDKIT TESTS += \ test-context.sh \ test-pattern.sh \ $(NULL) endif HAVE_NBDKIT endif HAVE_PYTHON ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/Makefile.in�������������������������������������������������������������������������0000664�0001750�0001750�00000107427�13616543374�012377� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# Makefile.in generated by automake 1.16.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2018 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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�����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/nbdsh.in����������������������������������������������������������������������������0000664�0001750�0001750�00000002023�13571455275�011744� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/bin/sh - # Copyright (C) 2011-2019 Red Hat Inc. # # @configure_input@ # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test if /bin/sh supports exec -a option (only supported in bash 4.2 # and above, and not part of POSIX). if /bin/sh -c 'exec -a test true' 2>/dev/null; then exec -a nbdsh @PYTHON@ -mnbd "$@" else exec @PYTHON@ -mnbd "$@" fi �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/nbdsh.pod���������������������������������������������������������������������������0000664�0001750�0001750�00000004320�13551165722�012113� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbdsh - network block device (NBD) shell =head1 SYNOPSIS $ nbdsh Welcome to nbdsh, the shell for interacting with Network Block Device (NBD) servers. The ‘nbd’ module has already been imported and there is an open NBD handle called ‘h’. nbd> h.connect_command (["nbdkit", "-s", "memory", "1G"]) nbd> h.get_size () 1073741824 nbd> buf = b"hello, world" nbd> h.pwrite (buf, 0, 0) nbd> exit() =head1 DESCRIPTION nbdsh is a Python-based client shell for accessing Network Block Device (NBD) servers. For documentation about the libnbd API please open the shell and type: help (nbd) =head1 EXAMPLES =head2 Print the size of an NBD export The I<-u> option connects to an NBD URI. The I<-c> option lets you execute single Python statements from the command line. Combining these two options lets you print the size in bytes of an NBD export: $ nbdsh -u nbd://localhost -c 'print (h.get_size ())' 1073741824 =head2 Hexdump the boot sector of an NBD export Using I<-c -> you can feed a whole Python program to the standard input of nbdsh: __EXAMPLES_HEXDUMP__ =head1 OPTIONS =over 4 =item B<-h> =item B<--help> Display brief command line help and exit. =item B<--base-allocation> Request the use of the "base:allocation" meta context, which is the most common context used with L<nbd_block_status(3)>. This is equivalent to calling S<C<h.set_meta_context (nbd.CONTEXT_BASE_ALLOCATION)>> in the shell prior to connecting. =item B<-c> 'COMMAND ...' =item B<--command> 'COMMAND ...' Instead of starting an interactive shell, run a command. This option can be specified multiple times in order to run multiple commands. =item B<-c -> =item B<--command -> Read standard input and execute it as a command. =item B<-u> URI =item B<-uri> URI =item B<--connect> URI Connect to the given L<NBD URI|https://github.com/NetworkBlockDevice/nbd/blob/master/doc/uri.md>. This is equivalent to the S<C<h.connect_uri (URI)>> command in the shell. =item B<-V> =item B<--version> Display the package name and version and exit. =back =head1 SEE ALSO L<libnbd(3)>, L<libnbd-security(3)>, L<nbdfuse(1)>, L<qemu-img(1)>. =head1 AUTHORS Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/test-context.sh���������������������������������������������������������������������0000775�0001750�0001750�00000004442�13546661321�013316� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test effects of nbdsh --base-allocation fail=0 . ../tests/functions.sh requires nbdsh -c 'exit(not h.supports_uri())' # Without --base-allocation, no meta context is requested output=$(nbdkit -U - null --run 'nbdsh \ -u "nbd+unix://?socket=$unixsocket" \ -c "print (h.can_meta_context (nbd.CONTEXT_BASE_ALLOCATION))"') if test "x$output" != xFalse; then echo "$0: unexpected output: $output" fail=1 fi # With --base-allocation (and a server that supports it), meta context works. output=$(nbdkit -U - null --run 'nbdsh \ --base-allocation --uri "nbd+unix://?socket=$unixsocket" \ --command "print (h.can_meta_context (nbd.CONTEXT_BASE_ALLOCATION))"') if test "x$output" != xTrue; then echo "$0: unexpected output: $output" fail=1 fi # Again, but with --b after -u, and with abbreviated option names output=$(nbdkit -U - null --run 'nbdsh \ -u "nbd+unix://?socket=$unixsocket" --b \ -c "print (h.can_meta_context (nbd.CONTEXT_BASE_ALLOCATION))"') if test "x$output" != xTrue; then echo "$0: unexpected output: $output" fail=1 fi if [[ $(nbdkit --help) =~ --no-sr ]]; then # meta context depends on server cooperation output=$(nbdkit -U - --no-sr null --run 'nbdsh \ -u "nbd+unix://?socket=$unixsocket" --base-allocation \ -c "print (h.can_meta_context (nbd.CONTEXT_BASE_ALLOCATION))"') if test "x$output" != xFalse; then echo "$0: unexpected output: $output" fail=1 fi else echo "$0: nbdkit lacks --no-sr" fi exit $fail ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/test-help.sh������������������������������������������������������������������������0000775�0001750�0001750�00000002116�13536507440�012556� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test that nbdsh --help looks sane. fail=0 output=$(nbdsh --help) if [ $? != 0 ]; then echo "$0: unexpected exit status" fail=1 fi if [[ ! ( "$output" =~ "usage:" && "$output" =~ "manual page" ) ]]; then echo "$0: unexpected output" fail=1 fi echo "$output" exit $fail ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/sh/test-pattern.sh���������������������������������������������������������������������0000775�0001750�0001750�00000003047�13546661321�013307� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuse/nbdfuse.c�������������������������������������������������������������������������0000664�0001750�0001750�00000040223�13571455265�012443� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* FUSE support. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdbool.h> #include <stdint.h> #include <inttypes.h> #include <string.h> #include <getopt.h> #include <limits.h> #include <fcntl.h> #include <unistd.h> #include <errno.h> #include <signal.h> #include <time.h> #include <sys/types.h> #include <sys/stat.h> #define FUSE_USE_VERSION 26 #include <fuse.h> #ifdef HAVE_FUSE_LOWLEVEL_H #include <fuse_lowlevel.h> #endif #include <libnbd.h> #define MAX_REQUEST_SIZE (32 * 1024 * 1024) static struct nbd_handle *nbd; static bool readonly; static char *mountpoint, *filename; static const char *pidfile; static char *fuse_options; static struct fuse_chan *ch; static struct fuse *fuse; static struct timespec start_t; static uint64_t size; static int nbdfuse_getattr (const char *path, struct stat *stbuf); static int nbdfuse_readdir (const char *path, void *buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info *fi); static int nbdfuse_open (const char *path, struct fuse_file_info *fi); static int nbdfuse_read (const char *path, char *buf, size_t count, off_t offset, struct fuse_file_info *fi); static int nbdfuse_write (const char *path, const char *buf, size_t count, off_t offset, struct fuse_file_info *fi); static int nbdfuse_fsync (const char *path, int datasync, struct fuse_file_info *fi); static int nbdfuse_release (const char *path, struct fuse_file_info *fi); static struct fuse_operations fuse_operations = { .getattr = nbdfuse_getattr, .readdir = nbdfuse_readdir, .open = nbdfuse_open, .read = nbdfuse_read, .write = nbdfuse_write, .fsync = nbdfuse_fsync, .release = nbdfuse_release, }; static void __attribute__((noreturn)) usage (FILE *fp, int exitcode) { fprintf (fp, "\n" "Mount NBD server as a virtual file:\n" "\n" #ifdef HAVE_LIBXML2 " nbdfuse [-o FUSE-OPTION] [-P PIDFILE] [-r] MOUNTPOINT[/FILENAME] URI\n" "\n" "Other modes:\n" "\n" #endif " nbdfuse MOUNTPOINT[/FILENAME] --command CMD [ARGS ...]\n" " nbdfuse MOUNTPOINT[/FILENAME] --socket-activation CMD [ARGS ...]\n" " nbdfuse MOUNTPOINT[/FILENAME] --fd N\n" " nbdfuse MOUNTPOINT[/FILENAME] --tcp HOST PORT\n" " nbdfuse MOUNTPOINT[/FILENAME] --unix SOCKET\n" " nbdfuse MOUNTPOINT[/FILENAME] --vsock CID PORT\n" "\n" "Please read the nbdfuse(1) manual page for full usage.\n" "\n" ); exit (exitcode); } static void display_version (void) { printf ("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION); } static void fuse_help (const char *prog) { static struct fuse_operations null_operations; const char *tmp_argv[] = { prog, "--help", NULL }; fuse_main (2, (char **) tmp_argv, &null_operations, NULL); exit (EXIT_SUCCESS); } static bool is_directory (const char *path) { struct stat statbuf; if (stat (path, &statbuf) == -1) return false; return S_ISDIR (statbuf.st_mode); } int main (int argc, char *argv[]) { enum { MODE_URI, MODE_COMMAND, MODE_FD, MODE_SOCKET_ACTIVATION, MODE_TCP, MODE_UNIX, MODE_VSOCK, } mode = MODE_URI; enum { HELP_OPTION = CHAR_MAX + 1, FUSE_HELP_OPTION, }; /* Note the "+" means we stop processing as soon as we get to the * first non-option argument (the mountpoint) and then we parse the * rest of the command line without getopt. */ const char *short_options = "+o:P:rV"; const struct option long_options[] = { { "fuse-help", no_argument, NULL, FUSE_HELP_OPTION }, { "help", no_argument, NULL, HELP_OPTION }, { "pidfile", required_argument, NULL, 'P' }, { "pid-file", required_argument, NULL, 'P' }, { "readonly", no_argument, NULL, 'r' }, { "read-only", no_argument, NULL, 'r' }, { "version", no_argument, NULL, 'V' }, { NULL } }; int c, fd, r; uint32_t cid, port; int64_t ssize; const char *s; struct fuse_args fuse_args = FUSE_ARGS_INIT (0, NULL); struct sigaction sa; FILE *fp; for (;;) { c = getopt_long (argc, argv, short_options, long_options, NULL); if (c == -1) break; switch (c) { case HELP_OPTION: usage (stdout, EXIT_SUCCESS); case FUSE_HELP_OPTION: fuse_help (argv[0]); exit (EXIT_SUCCESS); case 'o': fuse_opt_add_opt_escaped (&fuse_options, optarg); break; case 'P': pidfile = optarg; break; case 'r': readonly = true; break; case 'V': display_version (); exit (EXIT_SUCCESS); default: usage (stderr, EXIT_FAILURE); } } /* There must be at least 2 parameters (mountpoint and * URI/--command/etc). */ if (argc - optind < 2) usage (stderr, EXIT_FAILURE); /* Parse and check the mountpoint. It might be MOUNTPOINT or * MOUNTPOINT/FILENAME. In either case MOUNTPOINT must be an * existing directory. */ s = argv[optind++]; if (is_directory (s)) { mountpoint = strdup (s); filename = strdup ("nbd"); if (mountpoint == NULL || filename == NULL) { strdup_error: perror ("strdup"); exit (EXIT_FAILURE); } } else { const char *p = strrchr (s, '/'); if (p == NULL) { mp_error: fprintf (stderr, "%s: %s: " "mountpoint must be \"directory\" or \"directory/filename\"\n", argv[0], s); exit (EXIT_FAILURE); } mountpoint = strndup (s, p-s); if (mountpoint == NULL) goto strdup_error; if (! is_directory (mountpoint)) goto mp_error; if (strlen (p+1) == 0) goto mp_error; filename = strdup (p+1); if (filename == NULL) goto strdup_error; } /* The next parameter is either a URI or a mode switch. */ if (strcmp (argv[optind], "--command") == 0 || strcmp (argv[optind], "--cmd") == 0) { mode = MODE_COMMAND; optind++; } else if (strcmp (argv[optind], "--socket-activation") == 0 || strcmp (argv[optind], "--systemd-socket-activation") == 0) { mode = MODE_SOCKET_ACTIVATION; optind++; } else if (strcmp (argv[optind], "--fd") == 0) { mode = MODE_FD; optind++; } else if (strcmp (argv[optind], "--tcp") == 0) { mode = MODE_TCP; optind++; } else if (strcmp (argv[optind], "--unix") == 0) { mode = MODE_UNIX; optind++; } else if (strcmp (argv[optind], "--vsock") == 0) { mode = MODE_VSOCK; optind++; } /* This is undocumented, but allow either URI or --uri URI. */ else if (strcmp (argv[optind], "--uri") == 0) { mode = MODE_URI; optind++; } else if (argv[optind][0] == '-') { fprintf (stderr, "%s: unknown mode: %s\n", argv[0], argv[optind]); usage (stderr, EXIT_FAILURE); } #ifndef HAVE_LIBXML2 if (mode == MODE_URI) { fprintf (stderr, "%s: URIs are not supported in this build of libnbd\n", argv[0]); exit (EXIT_FAILURE); } #endif /* Check there are enough parameters following given the mode. */ switch (mode) { case MODE_URI: case MODE_FD: case MODE_UNIX: if (argc - optind != 1) usage (stderr, EXIT_FAILURE); break; case MODE_TCP: case MODE_VSOCK: if (argc - optind != 2) usage (stderr, EXIT_FAILURE); break; case MODE_COMMAND: case MODE_SOCKET_ACTIVATION: if (argc - optind < 1) usage (stderr, EXIT_FAILURE); break; } /* At this point we know the command line is valid, and so can start * opening FUSE and libnbd. */ /* Create the libnbd handle. */ nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Connect to the NBD server synchronously. */ switch (mode) { case MODE_URI: if (nbd_connect_uri (nbd, argv[optind]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } break; case MODE_COMMAND: if (nbd_connect_command (nbd, &argv[optind]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } break; case MODE_SOCKET_ACTIVATION: if (nbd_connect_systemd_socket_activation (nbd, &argv[optind]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } break; case MODE_FD: if (sscanf (argv[optind], "%d", &fd) != 1) { fprintf (stderr, "%s: could not parse file descriptor: %s\n\n", argv[0], argv[optind]); exit (EXIT_FAILURE); } if (nbd_connect_socket (nbd, fd) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } break; case MODE_TCP: if (nbd_connect_tcp (nbd, argv[optind], argv[optind+1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } break; case MODE_UNIX: if (nbd_connect_unix (nbd, argv[optind]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } break; case MODE_VSOCK: if (sscanf (argv[optind], "%" SCNu32, &cid) != 1) { fprintf (stderr, "%s: could not parse vsock cid: %s\n\n", argv[0], argv[optind]); exit (EXIT_FAILURE); } if (sscanf (argv[optind+1], "%" SCNu32, &port) != 1) { fprintf (stderr, "%s: could not parse vsock port: %s\n\n", argv[0], argv[optind]); exit (EXIT_FAILURE); } if (nbd_connect_vsock (nbd, cid, port) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } break; } ssize = nbd_get_size (nbd); if (ssize == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } size = (uint64_t) ssize; /* This is just used to give an unchanging time when they stat in * the mountpoint. */ clock_gettime (CLOCK_REALTIME, &start_t); /* Create the FUSE args. */ if (fuse_opt_add_arg (&fuse_args, argv[0]) == -1) { fuse_opt_error: perror ("fuse_opt_add_arg"); exit (EXIT_FAILURE); } if (fuse_options) { if (fuse_opt_add_arg (&fuse_args, "-o") == -1 || fuse_opt_add_arg (&fuse_args, fuse_options) == -1) goto fuse_opt_error; } /* Create the FUSE mountpoint. */ ch = fuse_mount (mountpoint, &fuse_args); if (ch == NULL) { fprintf (stderr, "%s: fuse_mount failed: see error messages above", argv[0]); exit (EXIT_FAILURE); } /* Set F_CLOEXEC on the channel. Some versions of libfuse don't do * this. */ fd = fuse_chan_fd (ch); if (fd >= 0) { int flags = fcntl (fd, F_GETFD, 0); if (flags >= 0) fcntl (fd, F_SETFD, flags & ~FD_CLOEXEC); } /* Create the FUSE handle. */ fuse = fuse_new (ch, &fuse_args, &fuse_operations, sizeof fuse_operations, NULL); if (!fuse) { perror ("fuse_new"); exit (EXIT_FAILURE); } fuse_opt_free_args (&fuse_args); /* Catch signals since they can leave the mountpoint in a funny * state. To exit the program callers must use ‘fusermount -u’. We * also must be careful not to call exit(2) in this program until we * have unmounted the filesystem below. */ memset (&sa, 0, sizeof sa); sa.sa_handler = SIG_IGN; sa.sa_flags = SA_RESTART; sigaction (SIGPIPE, &sa, NULL); sigaction (SIGINT, &sa, NULL); sigaction (SIGQUIT, &sa, NULL); /* Ready to serve, write pidfile. */ if (pidfile) { fp = fopen (pidfile, "w"); if (fp) { fprintf (fp, "%ld", (long) getpid ()); fclose (fp); } } /* Enter the main loop. */ r = fuse_loop (fuse); if (r != 0) perror ("fuse_loop"); /* Close FUSE. */ fuse_unmount (mountpoint, ch); fuse_destroy (fuse); /* Close NBD handle. */ nbd_close (nbd); free (mountpoint); free (filename); free (fuse_options); exit (r == 0 ? EXIT_SUCCESS : EXIT_FAILURE); } /* Wraps calls to libnbd functions and automatically checks for error, * returning errors in the format required by FUSE. It also prints * out the full error message on stderr, so that we don't lose it. */ #define CHECK_NBD_ERROR(CALL) \ do { if ((CALL) == -1) return check_nbd_error (); } while (0) static int check_nbd_error (void) { int err; fprintf (stderr, "%s\n", nbd_get_error ()); err = nbd_get_errno (); if (err != 0) return -err; else return -EIO; } static int nbdfuse_getattr (const char *path, struct stat *statbuf) { const int mode = readonly ? 0444 : 0666; memset (statbuf, 0, sizeof (struct stat)); /* We're probably making some Linux-specific assumptions here, but * this file is not usually compiled on non-Linux systems (perhaps * on OpenBSD?). XXX */ statbuf->st_atim = start_t; statbuf->st_mtim = start_t; statbuf->st_ctim = start_t; statbuf->st_uid = geteuid (); statbuf->st_gid = getegid (); if (strcmp (path, "/") == 0) { /* getattr "/" */ statbuf->st_mode = S_IFDIR | (mode & 0111); statbuf->st_nlink = 2; } else if (path[0] == '/' && strcmp (path+1, filename) == 0) { /* getattr "/filename" */ statbuf->st_mode = S_IFREG | mode; statbuf->st_nlink = 1; statbuf->st_size = size; } else return -ENOENT; return 0; } static int nbdfuse_readdir (const char *path, void *buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info *fi) { if (strcmp (path, "/") != 0) return -ENOENT; filler (buf, ".", NULL, 0); filler (buf, "..", NULL, 0); filler (buf, filename, NULL, 0); return 0; } /* This function checks the O_RDONLY/O_RDWR flags passed to the * open(2) call, so we have to check the open mode is compatible with * the readonly flag. */ static int nbdfuse_open (const char *path, struct fuse_file_info *fi) { if (path[0] != '/' || strcmp (path+1, filename) != 0) return -ENOENT; if (readonly && (fi->flags & O_ACCMODE) != O_RDONLY) return -EACCES; return 0; } static int nbdfuse_read (const char *path, char *buf, size_t count, off_t offset, struct fuse_file_info *fi) { if (path[0] != '/' || strcmp (path+1, filename) != 0) return -ENOENT; if (offset >= size) return 0; if (count > MAX_REQUEST_SIZE) count = MAX_REQUEST_SIZE; if (offset + count > size) count = size - offset; CHECK_NBD_ERROR (nbd_pread (nbd, buf, count, offset, 0)); return (int) count; } static int nbdfuse_write (const char *path, const char *buf, size_t count, off_t offset, struct fuse_file_info *fi) { /* Probably shouldn't happen because of nbdfuse_open check. */ if (readonly) return -EACCES; if (path[0] != '/' || strcmp (path+1, filename) != 0) return -ENOENT; if (offset >= size) return 0; if (count > MAX_REQUEST_SIZE) count = MAX_REQUEST_SIZE; if (offset + count > size) count = size - offset; CHECK_NBD_ERROR (nbd_pwrite (nbd, buf, count, offset, 0)); return (int) count; } static int nbdfuse_fsync (const char *path, int datasync, struct fuse_file_info *fi) { if (readonly) return 0; /* If the server doesn't support flush then the operation is * silently ignored. */ if (nbd_can_flush (nbd)) CHECK_NBD_ERROR (nbd_flush (nbd, 0)); return 0; } /* This is called on the last close of a file. We do a flush here to * be on the safe side, but it's not strictly necessary. */ static int nbdfuse_release (const char *path, struct fuse_file_info *fi) { if (readonly) return 0; return nbdfuse_fsync (path, 0, fi); } �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuse/nbdfuse.pod�����������������������������������������������������������������������0000664�0001750�0001750�00000020260�13552713634�012776� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME nbdfuse - present a network block device in a FUSE filesystem =head1 SYNOPSIS nbdfuse [-o FUSE-OPTION] [-P PIDFILE] [-r] MOUNTPOINT[/FILENAME] URI Other modes: nbdfuse MOUNTPOINT[/FILENAME] --command CMD [ARGS ...] nbdfuse MOUNTPOINT[/FILENAME] --socket-activation CMD [ARGS ...] nbdfuse MOUNTPOINT[/FILENAME] --fd N nbdfuse MOUNTPOINT[/FILENAME] --tcp HOST PORT nbdfuse MOUNTPOINT[/FILENAME] --unix SOCKET nbdfuse MOUNTPOINT[/FILENAME] --vsock CID PORT =head1 DESCRIPTION nbdfuse presents a Network Block Device as a local file inside a FUSE filesystem. The FUSE filesystem is mounted at F<MOUNTPOINT> and contains a single virtual file called F<FILENAME> (defaulting to F<nbd>). Reads and writes to the virtual file or device are turned into reads and writes to the NBD device. The NBD server itself can be local or remote. The server can be specified as an NBD URI (like C<nbd://localhost>) or in various other ways (see L</MODES>). Use C<fusermount -u MOUNTPOINT> to unmount the filesystem after you have used it. =head1 EXAMPLES =head2 Present a remote NBD server as a local file If there is a remote NBD server running on C<example.com> at the default NBD port number (10809) then you can turn it into a local file by doing: $ mkdir dir $ nbdfuse dir nbd://example.com & $ ls -l dir/ total 0 -rw-rw-rw-. 1 nbd nbd 1073741824 Jan 1 10:10 nbd The file is called F<dir/nbd> and you can read and write to it as if it is a normal file. Note that writes to the file will write to the remote NBD server. After using it, unmount it: $ fusermount -u dir $ rmdir dir =head2 Use nbdkit to create a file backed by a temporary RAM disk L<nbdkit(1)> has an I<-s> option allowing it to serve over stdin/stdout. You can combine this with nbdfuse as follows: $ mkdir dir $ nbdfuse dir/ramdisk --command nbdkit -s memory 1G & $ ls -l dir/ total 0 -rw-rw-rw-. 1 nbd nbd 1073741824 Jan 1 10:10 ramdisk $ dd if=/dev/urandom bs=1M count=100 of=mp/ramdisk conv=notrunc,nocreat 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 2.08319 s, 50.3 MB/s When you have finished with the RAM disk, you can unmount it as below which will cause nbdkit to exit and the RAM disk contents to be discarded: $ fusermount -u dir $ rmdir dir =head2 Use qemu-nbd to read and modify a qcow2 file L<qemu-nbd(8)> cannot serve over stdin/stdout, but it can use systemd socket activation. You can combine this with nbdfuse and use it to open any file format which qemu understands: $ mkdir dir $ nbdfuse dir/file.raw \ --socket-activation qemu-nbd -f qcow2 file.qcow2 & $ ls -l dir/ total 0 -rw-rw-rw-. 1 nbd nbd 1073741824 Jan 1 10:10 file.raw File F<dir/file.raw> is in raw format, backed by F<file.qcow2>. Any changes made to F<dir/file.raw> are reflected into the qcow2 file. To unmount the file do: $ fusermount -u dir $ rmdir dir =head2 Use nbdkit to create a local file from a file on a web server L<nbdkit(1)> is able to both access and transparently uncompress remote disk images on web servers, so you can convert them into virtual files: $ mkdir dir $ nbdfuse dir/disk.iso \ --command nbdkit -s curl --filter=xz \ http://builder.libguestfs.org/fedora-30.xz & $ ls -l dir/ total 0 -rw-rw-rw-. 1 nbd nbd 6442450944 Jan 1 10:10 disk.iso $ file dir/disk.iso dir/disk.iso: DOS/MBR boot sector $ qemu-system-x86_64 -m 4G \ -drive file=dir/disk.iso,format=raw,if=virtio,snapshot=on $ fusermount -u dir In this example we have used the virtual file to boot qemu, but qemu can much more efficiently access NBD servers directly so in the real world that would be the preferred method. =head1 OPTIONS =over 4 =item B<--help> Display brief command line help and exit. =item B<--fuse-help> Display FUSE options and exit. See I<-o> below. =item B<-o> FUSE-OPTION Pass extra options to FUSE. To get a list of all the extra options supported by FUSE, use I<--fuse-help>. Some potentially useful FUSE options: =over 4 =item B<-o> B<allow_other> Allow other users to see the filesystem. This option has no effect unless you enable it globally in F</etc/fuse.conf>. =item B<-o> B<kernel_cache> Allow the kernel to cache files (reduces the number of reads that have to go through the L<libnbd(3)> API). This is generally a good idea if you can afford the extra memory usage. =item B<-o> B<uid=>N =item B<-o> B<gid=>N Use these options to map UIDs and GIDs. =back =item B<-P> PIDFILE =item B<--pidfile> PIDFILE When nbdfuse is ready to serve, write the nbdfuse process ID (PID) to F<PIDFILE>. This can be used in scripts to wait until nbdfuse is ready. Note you mustn't try to kill nbdfuse. Use C<fusermount -u> to unmount the mountpoint which will cause nbdfuse to exit cleanly. =item B<-r> =item B<--readonly> Access the network block device read-only. The virtual file will have read-only permissions, and any writes will return errors. =item B<-V> =item B<--version> Display the package name and version and exit. =back =head1 MODES Modes are used to select the NBD server. The default mode uses an NBD URI (see L<nbd_connect_uri(3)> and L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/uri.md>). For example this specifies a TLS-encrypted connection to C<example.com> port C<10809>, with export name C<disk>: nbdfuse dir nbds://example.com/disk Other modes are: =over 4 =item B<--command> CMD [ARGS ...] Select command mode. In this mode an NBD server can be run directly from the command line with nbdfuse communicating with the server over the server’s stdin/stdout. Normally you would use this with C<nbdkit -s>. See L</EXAMPLES> above and L<nbd_connect_command(3)>. =item B<--fd> N Select file descriptor mode. In this mode a connected socket is passed to nbdfuse. nbdfuse connects to the socket on the numbered file descriptor. See also L<nbd_connect_socket(3)>. =item B<--socket-activation> CMD [ARGS ...] Select systemd socket activation mode. This is similar to I<--command>, but is used for servers like L<qemu-nbd(8)> which support systemd socket activation. See L</EXAMPLES> above and L<nbd_connect_systemd_socket_activation(3)>. =item B<--tcp> HOST PORT Select TCP mode. Connect to an NBD server on a host and port over an unencrypted TCP socket. See also L<nbd_connect_tcp(3)>. =item B<--unix> SOCKET Select Unix mode. Connect to an NBD server on a Unix domain socket. See also L<nbd_connect_unix(3)>. =item B<--vsock> CID PORT Select vsock mode. Connect to an NBD server on a C<AF_VSOCK> socket. See also L<nbd_connect_vsock(3)>. =back =head1 NOTES =head2 Loop mounting It is tempting (and possible) to loop mount the file. However this will be very slow and may sometimes deadlock. Better alternatives are to use L<nbd-client(8)> or L<qemu-nbd(8)>, or more securely L<libguestfs(3)>, L<guestfish(1)> or L<guestmount(1)> which can all access NBD servers. =head2 As a way to access NBD servers You can use this to access NBD servers, but it is usually better (and definitely much faster) to use L<libnbd(3)> directly instead. To access NBD servers from the command line, look at L<nbdsh(1)>. =head2 Compared to C<nbd-client> This program is similar in concept to L<nbd-client(8)> (which turns NBD into F</dev/nbdX> device nodes), except: =over 4 =item * nbd-client is faster because it uses a special kernel module =item * nbd-client requires root, but nbdfuse can be used by any user =item * nbdfuse virtual files can be mounted anywhere in the filesystem =item * nbdfuse uses libnbd to talk to the NBD server =item * nbdfuse requires FUSE support in the kernel =back =head2 Compared to C<qemu-nbd> L<qemu-nbd(8)> can also attach itself to F</dev/nbdX> device nodes. The differences from nbdfuse are similar to the list above. =head1 SEE ALSO L<libnbd(3)>, L<nbdsh(1)>, L<fusermount(1)>, L<mount.fuse(8)>, L<nbd_connect_uri(3)>, L<nbd_connect_command(3)>, L<nbd_connect_socket(3)>, L<nbd_connect_systemd_socket_activation(3)>, L<nbd_connect_tcp(3)>, L<nbd_connect_unix(3)>, L<nbd_connect_vsock(3)>, L<libguestfs(3)>, L<guestfish(1)>, L<guestmount(1)>, L<nbdkit(1)>, L<nbdkit-loop(1)>, L<qemu-nbd(8)>, L<nbd-client(8)>. =head1 AUTHORS Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuse/test-nbdkit.sh��������������������������������������������������������������������0000775�0001750�0001750�00000003430�13571455301�013426� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test nbdfuse + nbdkit. . ../tests/functions.sh set -e set -x requires nbdkit --exit-with-parent --version requires cmp --version requires dd --version if ! test -r /dev/urandom; then echo "$0: test skipped: /dev/urandom not readable" exit 77 fi pidfile=test-nbdkit.pid mp=test-nbdkit.d data=test-nbdkit.data cleanup_fn fusermount -u $mp cleanup_fn rm -rf $mp cleanup_fn rm -f $pidfile $data mkdir -p $mp $VG nbdfuse -P $pidfile $mp \ --command nbdkit -s --exit-with-parent memory size=10M & # Wait for the pidfile to appear. for i in {1..60}; do if test -f $pidfile; then break fi sleep 1 done if ! test -f $pidfile; then echo "$0: nbdfuse PID file $pidfile was not created" exit 1 fi dd if=/dev/urandom of=$data bs=1M count=10 # Use a weird block size when writing. It's a bit pointless because # something in the Linux/FUSE stack turns these into exact 4096 byte # writes. dd if=$data of=$mp/nbd bs=65519 conv=nocreat,notrunc cmp $data $mp/nbd ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuse/test-qcow2.sh���������������������������������������������������������������������0000775�0001750�0001750�00000003377�13551165722�013223� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # The nbdfuse documentation describes how you can use nbdfuse + # qemu-nbd to open qcow2 files. This claim is tested here. . ../tests/functions.sh set -e set -x requires qemu-nbd --version requires qemu-img --version requires cmp --version requires dd --version if ! test -r /dev/urandom; then echo "$0: test skipped: /dev/urandom not readable" exit 77 fi pidfile=test-qcow2.pid mp=test-qcow2.d data=test-qcow2.data qcow2=test-qcow2.qcow2 cleanup_fn fusermount -u $mp cleanup_fn rm -rf $mp cleanup_fn rm -f $pidfile $data $qcow2 dd if=/dev/urandom of=$data bs=1M count=1 qemu-img convert -f raw $data -O qcow2 $qcow2 mkdir -p $mp $VG nbdfuse -r -P $pidfile $mp \ --socket-activation qemu-nbd -f qcow2 $qcow2 & # Wait for the pidfile to appear. for i in {1..60}; do if test -f $pidfile; then break fi sleep 1 done if ! test -f $pidfile; then echo "$0: nbdfuse PID file $pidfile was not created" exit 1 fi cmp $data $mp/nbd �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/���������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�011062� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/Makefile.am����������������������������������������������������������������������0000664�0001750�0001750�00000007247�13525337211�013034� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk generator_built = \ NBD.mli \ NBD.ml \ nbd-c.c \ $(NULL) EXTRA_DIST = \ $(generator_built) \ libnbd-ocaml.pod \ $(NULL) CLEANFILES += *.annot *.cmi *.cmo *.cmx *.o *.a *.so *.cma *.cmxa if HAVE_POD man_MANS = libnbd-ocaml.3 CLEANFILES += $(man_MANS) libnbd-ocaml.3: libnbd-ocaml.pod $(top_builddir)/podwrapper.pl $(PODWRAPPER) --section=3 --man $@ \ --html $(top_builddir)/html/$@.html \ $< endif HAVE_POD if HAVE_OCAML OCAMLFLAGS = $(OCAML_FLAGS) $(OCAML_WARN_ERROR) -ccopt '$(CFLAGS)' OCAMLPACKAGES = -package unix -I $(srcdir) -I $(builddir) noinst_DATA = mlnbd.cma META if HAVE_OCAMLOPT noinst_DATA += mlnbd.cmxa endif # Build the C part into a library, so that automake handles the C # compilation step for us. Note that we don't directly use this # library; we link with the object files that it generates. noinst_LIBRARIES = libnbdocaml.a # Both calls to ocamlmklib below will create 'libmlnbd.a' and if run # at the same time, they will stomp on or corrupt each others copy. # Hence we have to serialize the calls. CLEANFILES += stamp-mlnbd mlnbd.cma mlnbd.cmxa: stamp-mlnbd nbd_cmm = NBD.cmo if HAVE_OCAMLOPT nbd_cmm += NBD.cmx endif stamp-mlnbd: libnbdocaml.a $(nbd_cmm) $(OCAMLFIND) mklib -o mlnbd \ $(OCAMLPACKAGES) \ -ldopt '$(LDFLAGS)' \ $(libnbdocaml_a_OBJECTS) NBD.cmo \ -L../lib/.libs -lnbd if HAVE_OCAMLOPT $(OCAMLFIND) mklib -o mlnbd \ $(OCAMLPACKAGES) \ -ldopt '$(LDFLAGS)' \ $(libnbdocaml_a_OBJECTS) NBD.cmx \ -L../lib/.libs -lnbd endif touch $@ libnbdocaml_a_CPPFLAGS = \ -I$(top_builddir) -I$(OCAMLLIB) -I$(top_srcdir)/ocaml \ -I$(top_srcdir)/include \ -DCAML_NAME_SPACE \ $(NULL) libnbdocaml_a_CFLAGS = \ $(WARNINGS_CFLAGS) \ -fPIC \ $(NULL) libnbdocaml_a_SOURCES = \ nbd-c.c \ nbd-c.h \ buffer.c \ handle.c \ helpers.c \ $(NULL) %.bc: %.cmo mlnbd.cma $(top_builddir)/libtool -dlopen $(top_builddir)/lib/.libs/libnbd.la --mode=execute \ $(OCAMLFIND) ocamlc $(OCAMLFLAGS) -I . -package unix -linkpkg mlnbd.cma $< -o $@ if HAVE_OCAMLOPT %.opt: %.cmx mlnbd.cmxa $(OCAMLFIND) ocamlopt $(OCAMLFLAGS) -cclib -L$(top_builddir)/lib/.libs -I . -package unix -linkpkg mlnbd.cmxa $< -o $@ endif # Dependencies. .depend: $(srcdir)/*.mli $(srcdir)/*.ml $(OCAMLFIND) ocamldep $^ > $@ -include .depend # Run ocamlfind to perform the install. ocamlfind refuses to install # the package if it is already installed, so remove the old package # first. data_hook_files = META *.so *.a *.cma *.cmi $(srcdir)/*.mli if HAVE_OCAMLOPT data_hook_files += *.cmx *.cmxa endif install-data-hook: mkdir -p $(DESTDIR)$(OCAMLLIB) mkdir -p $(DESTDIR)$(OCAMLLIB)/stublibs rm -rf $(DESTDIR)$(OCAMLLIB)/nbd rm -rf $(DESTDIR)$(OCAMLLIB)/stublibs/dllmlnbd.so* $(OCAMLFIND) install \ -ldconf ignore -destdir $(DESTDIR)$(OCAMLLIB) \ nbd \ $(data_hook_files) rm $(DESTDIR)$(OCAMLLIB)/nbd/libnbdocaml.a endif HAVE_OCAML ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/META.in��������������������������������������������������������������������������0000664�0001750�0001750�00000000226�13524776043�012055� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������name="nbd" version="@PACKAGE_VERSION@" description="libnbd bindings for OCaml" requires="unix" archive(byte)="mlnbd.cma" archive(native)="mlnbd.cmxa" ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/Makefile.in����������������������������������������������������������������������0000664�0001750�0001750�00000113672�13616543374�013057� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# Makefile.in generated by automake 1.16.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2018 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # subdir-rules.mk is included only in subdirectories. # common-rules.mk is included in every Makefile.am. # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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�����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <assert.h> #include <libnbd.h> #include "nbd-c.h" #include <caml/alloc.h> #include <caml/callback.h> #include <caml/fail.h> #include <caml/memory.h> #include <caml/mlvalues.h> #include <caml/threads.h> #pragma GCC diagnostic ignored "-Wmissing-prototypes" /* This is passed to *_wrapper as the user_data pointer * and freed in the free_user_data function below. */ struct user_data { value fnv; /* Optional GC root pointing to OCaml function. */ value bufv; /* Optional GC root pointing to persistent buffer. */ }; static struct user_data * alloc_user_data (void) { struct user_data *data = calloc (1, sizeof *data); if (data == NULL) caml_raise_out_of_memory (); return data; } static void free_user_data (void *user_data) { struct user_data *data = user_data; if (data->fnv != 0) caml_remove_generational_global_root (&data->fnv); if (data->bufv != 0) caml_remove_generational_global_root (&data->bufv); free (data); } /* Wrapper for chunk callback. */ static int chunk_wrapper_locked (void *user_data, const void *subbuf, size_t count, uint64_t offset, unsigned status, int *error) { CAMLparam0 (); CAMLlocal4 (subbufv, offsetv, statusv, errorv); CAMLlocal2 (exn, rv); const struct user_data *data = user_data; int r; value args[4]; subbufv = caml_alloc_initialized_string (count, subbuf); offsetv = caml_copy_int64 (offset); statusv = Val_int (status); errorv = caml_alloc_tuple (1); Store_field (errorv, 0, Val_int (*error)); args[0] = subbufv; args[1] = offsetv; args[2] = statusv; args[3] = errorv; rv = caml_callbackN_exn (data->fnv, 4, args); *error = Int_val (Field (errorv, 0)); if (Is_exception_result (rv)) { nbd_internal_ocaml_exception_in_wrapper ("chunk", rv); CAMLreturnT (int, -1); } r = Int_val (rv); assert (r >= 0); CAMLreturnT (int, r); } static int chunk_wrapper (void *user_data, const void *subbuf, size_t count, uint64_t offset, unsigned status, int *error) { int ret = 0; caml_leave_blocking_section (); ret = chunk_wrapper_locked (user_data, subbuf, count, offset, status, error); caml_enter_blocking_section (); return ret; } /* Wrapper for completion callback. */ static int completion_wrapper_locked (void *user_data, int *error) { CAMLparam0 (); CAMLlocal1 (errorv); CAMLlocal2 (exn, rv); const struct user_data *data = user_data; int r; value args[1]; errorv = caml_alloc_tuple (1); Store_field (errorv, 0, Val_int (*error)); args[0] = errorv; rv = caml_callbackN_exn (data->fnv, 1, args); *error = Int_val (Field (errorv, 0)); if (Is_exception_result (rv)) { nbd_internal_ocaml_exception_in_wrapper ("completion", rv); CAMLreturnT (int, -1); } r = Int_val (rv); assert (r >= 0); CAMLreturnT (int, r); } static int completion_wrapper (void *user_data, int *error) { int ret = 0; caml_leave_blocking_section (); ret = completion_wrapper_locked (user_data, error); caml_enter_blocking_section (); return ret; } /* Wrapper for debug callback. */ static int debug_wrapper_locked (void *user_data, const char *context, const char *msg) { CAMLparam0 (); CAMLlocal2 (contextv, msgv); CAMLlocal2 (exn, rv); const struct user_data *data = user_data; int r; value args[2]; contextv = caml_copy_string (context); msgv = caml_copy_string (msg); args[0] = contextv; args[1] = msgv; rv = caml_callbackN_exn (data->fnv, 2, args); if (Is_exception_result (rv)) { nbd_internal_ocaml_exception_in_wrapper ("debug", rv); CAMLreturnT (int, -1); } r = Int_val (rv); assert (r >= 0); CAMLreturnT (int, r); } static int debug_wrapper (void *user_data, const char *context, const char *msg) { int ret = 0; caml_leave_blocking_section (); ret = debug_wrapper_locked (user_data, context, msg); caml_enter_blocking_section (); return ret; } /* Wrapper for extent callback. */ static int extent_wrapper_locked (void *user_data, const char *metacontext, uint64_t offset, uint32_t *entries, size_t nr_entries, int *error) { CAMLparam0 (); CAMLlocal4 (metacontextv, offsetv, entriesv, errorv); CAMLlocal2 (exn, rv); const struct user_data *data = user_data; int r; value args[4]; metacontextv = caml_copy_string (metacontext); offsetv = caml_copy_int64 (offset); entriesv = nbd_internal_ocaml_alloc_int32_array (entries, nr_entries); errorv = caml_alloc_tuple (1); Store_field (errorv, 0, Val_int (*error)); args[0] = metacontextv; args[1] = offsetv; args[2] = entriesv; args[3] = errorv; rv = caml_callbackN_exn (data->fnv, 4, args); *error = Int_val (Field (errorv, 0)); if (Is_exception_result (rv)) { nbd_internal_ocaml_exception_in_wrapper ("extent", rv); CAMLreturnT (int, -1); } r = Int_val (rv); assert (r >= 0); CAMLreturnT (int, r); } static int extent_wrapper (void *user_data, const char *metacontext, uint64_t offset, uint32_t *entries, size_t nr_entries, int *error) { int ret = 0; caml_leave_blocking_section (); ret = extent_wrapper_locked (user_data, metacontext, offset, entries, nr_entries, error); caml_enter_blocking_section (); return ret; } /* Convert OCaml TLS.t to int. */ static int TLS_val (value v) { /* NB: No allocation in this function, don't need to use * CAML* wrappers. */ int i, r = 0; i = Int_val (Field (v, 0)); /* i is the index of the enum in the type * (eg. i = 0 => enum = TLS.DISABLE). * Convert it to the C representation. */ switch (i) { case 0: r = LIBNBD_TLS_DISABLE; break; case 1: r = LIBNBD_TLS_ALLOW; break; case 2: r = LIBNBD_TLS_REQUIRE; break; } return r; } /* Convert OCaml CMD_FLAG.t list to uint32_t bitmask. */ static uint32_t CMD_FLAG_val (value v) { /* NB: No allocation in this function, don't need to use * CAML* wrappers. */ int i; uint32_t r = 0; for (; v != Val_emptylist; v = Field (v, 1)) { i = Int_val (Field (v, 0)); /* i is the index of the flag in the type * (eg. i = 0 => flag = CMD_FLAG.FUA). * Convert it to the C representation. */ switch (i) { case 0: r |= LIBNBD_CMD_FLAG_FUA; break; case 1: r |= LIBNBD_CMD_FLAG_NO_HOLE; break; case 2: r |= LIBNBD_CMD_FLAG_DF; break; case 3: r |= LIBNBD_CMD_FLAG_REQ_ONE; break; case 4: r |= LIBNBD_CMD_FLAG_FAST_ZERO; break; } } return r; } /* Convert OCaml HANDSHAKE_FLAG.t list to uint32_t bitmask. */ static uint32_t HANDSHAKE_FLAG_val (value v) { /* NB: No allocation in this function, don't need to use * CAML* wrappers. */ int i; uint32_t r = 0; for (; v != Val_emptylist; v = Field (v, 1)) { i = Int_val (Field (v, 0)); /* i is the index of the flag in the type * (eg. i = 0 => flag = HANDSHAKE_FLAG.FIXED_NEWSTYLE). * Convert it to the C representation. */ switch (i) { case 0: r |= LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE; break; case 1: r |= LIBNBD_HANDSHAKE_FLAG_NO_ZEROES; break; } } return r; } /* Convert OCaml ALLOW_TRANSPORT.t list to uint32_t bitmask. */ static uint32_t ALLOW_TRANSPORT_val (value v) { /* NB: No allocation in this function, don't need to use * CAML* wrappers. */ int i; uint32_t r = 0; for (; v != Val_emptylist; v = Field (v, 1)) { i = Int_val (Field (v, 0)); /* i is the index of the flag in the type * (eg. i = 0 => flag = ALLOW_TRANSPORT.TCP). * Convert it to the C representation. */ switch (i) { case 0: r |= LIBNBD_ALLOW_TRANSPORT_TCP; break; case 1: r |= LIBNBD_ALLOW_TRANSPORT_UNIX; break; case 2: r |= LIBNBD_ALLOW_TRANSPORT_VSOCK; break; } } return r; } value nbd_internal_ocaml_nbd_set_debug (value hv, value debugv) { CAMLparam2 (hv, debugv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_debug"); bool debug = Bool_val (debugv); int r; caml_enter_blocking_section (); r = nbd_set_debug (h, debug); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_debug (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_debug"); int r; caml_enter_blocking_section (); r = nbd_get_debug (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_debug_callback (value hv, value debugv) { CAMLparam2 (hv, debugv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_debug_callback"); nbd_debug_callback debug_callback; struct user_data *debug_user_data = alloc_user_data (); /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ debug_user_data->fnv = debugv; caml_register_generational_global_root (&debug_user_data->fnv); debug_callback.callback = debug_wrapper; debug_callback.user_data = debug_user_data; debug_callback.free = free_user_data; int r; caml_enter_blocking_section (); r = nbd_set_debug_callback (h, debug_callback); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_clear_debug_callback (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.clear_debug_callback"); int r; caml_enter_blocking_section (); r = nbd_clear_debug_callback (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_handle_name (value hv, value handle_namev) { CAMLparam2 (hv, handle_namev); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_handle_name"); const char *handle_name = String_val (handle_namev); int r; caml_enter_blocking_section (); r = nbd_set_handle_name (h, handle_name); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_handle_name (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_handle_name"); char * r; caml_enter_blocking_section (); r = nbd_get_handle_name (h); caml_leave_blocking_section (); if (r == NULL) nbd_internal_ocaml_raise_error (); rv = caml_copy_string (r); free (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_export_name (value hv, value export_namev) { CAMLparam2 (hv, export_namev); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_export_name"); const char *export_name = String_val (export_namev); int r; caml_enter_blocking_section (); r = nbd_set_export_name (h, export_name); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_export_name (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_export_name"); char * r; caml_enter_blocking_section (); r = nbd_get_export_name (h); caml_leave_blocking_section (); if (r == NULL) nbd_internal_ocaml_raise_error (); rv = caml_copy_string (r); free (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_tls (value hv, value tlsv) { CAMLparam2 (hv, tlsv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_tls"); int tls = TLS_val (tlsv); int r; caml_enter_blocking_section (); r = nbd_set_tls (h, tls); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_tls (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_tls"); int r; caml_enter_blocking_section (); r = nbd_get_tls (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_int (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_tls_negotiated (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_tls_negotiated"); int r; caml_enter_blocking_section (); r = nbd_get_tls_negotiated (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_tls_certificates (value hv, value dirv) { CAMLparam2 (hv, dirv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_tls_certificates"); const char *dir = String_val (dirv); int r; caml_enter_blocking_section (); r = nbd_set_tls_certificates (h, dir); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_tls_verify_peer (value hv, value verifyv) { CAMLparam2 (hv, verifyv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_tls_verify_peer"); bool verify = Bool_val (verifyv); int r; caml_enter_blocking_section (); r = nbd_set_tls_verify_peer (h, verify); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_tls_verify_peer (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_tls_verify_peer"); int r; caml_enter_blocking_section (); r = nbd_get_tls_verify_peer (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_tls_username (value hv, value usernamev) { CAMLparam2 (hv, usernamev); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_tls_username"); const char *username = String_val (usernamev); int r; caml_enter_blocking_section (); r = nbd_set_tls_username (h, username); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_tls_username (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_tls_username"); char * r; caml_enter_blocking_section (); r = nbd_get_tls_username (h); caml_leave_blocking_section (); if (r == NULL) nbd_internal_ocaml_raise_error (); rv = caml_copy_string (r); free (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_tls_psk_file (value hv, value filenamev) { CAMLparam2 (hv, filenamev); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_tls_psk_file"); const char *filename = String_val (filenamev); int r; caml_enter_blocking_section (); r = nbd_set_tls_psk_file (h, filename); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_request_structured_replies (value hv, value requestv) { CAMLparam2 (hv, requestv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_request_structured_replies"); bool request = Bool_val (requestv); int r; caml_enter_blocking_section (); r = nbd_set_request_structured_replies (h, request); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_request_structured_replies (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_request_structured_replies"); int r; caml_enter_blocking_section (); r = nbd_get_request_structured_replies (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_structured_replies_negotiated (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_structured_replies_negotiated"); int r; caml_enter_blocking_section (); r = nbd_get_structured_replies_negotiated (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_handshake_flags (value hv, value flagsv) { CAMLparam2 (hv, flagsv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_handshake_flags"); uint32_t flags = HANDSHAKE_FLAG_val (flagsv); int r; caml_enter_blocking_section (); r = nbd_set_handshake_flags (h, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_handshake_flags (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_handshake_flags"); unsigned r; caml_enter_blocking_section (); r = nbd_get_handshake_flags (h); caml_leave_blocking_section (); rv = Val_int (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_add_meta_context (value hv, value namev) { CAMLparam2 (hv, namev); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.add_meta_context"); const char *name = String_val (namev); int r; caml_enter_blocking_section (); r = nbd_add_meta_context (h, name); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_uri_allow_transports (value hv, value maskv) { CAMLparam2 (hv, maskv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_uri_allow_transports"); uint32_t mask = ALLOW_TRANSPORT_val (maskv); int r; caml_enter_blocking_section (); r = nbd_set_uri_allow_transports (h, mask); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_uri_allow_tls (value hv, value tlsv) { CAMLparam2 (hv, tlsv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_uri_allow_tls"); int tls = TLS_val (tlsv); int r; caml_enter_blocking_section (); r = nbd_set_uri_allow_tls (h, tls); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_set_uri_allow_local_file (value hv, value allowv) { CAMLparam2 (hv, allowv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.set_uri_allow_local_file"); bool allow = Bool_val (allowv); int r; caml_enter_blocking_section (); r = nbd_set_uri_allow_local_file (h, allow); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_connect_uri (value hv, value uriv) { CAMLparam2 (hv, uriv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.connect_uri"); const char *uri = String_val (uriv); int r; caml_enter_blocking_section (); r = nbd_connect_uri (h, uri); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_connect_unix (value hv, value unixsocketv) { CAMLparam2 (hv, unixsocketv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.connect_unix"); const char *unixsocket = String_val (unixsocketv); int r; caml_enter_blocking_section (); r = nbd_connect_unix (h, unixsocket); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_connect_vsock (value hv, value cidv, value portv) { CAMLparam3 (hv, cidv, portv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.connect_vsock"); uint32_t cid = Int32_val (cidv); uint32_t port = Int32_val (portv); int r; caml_enter_blocking_section (); r = nbd_connect_vsock (h, cid, port); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_connect_tcp (value hv, value hostnamev, value portv) { CAMLparam3 (hv, hostnamev, portv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.connect_tcp"); const char *hostname = String_val (hostnamev); const char *port = String_val (portv); int r; caml_enter_blocking_section (); r = nbd_connect_tcp (h, hostname, port); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_connect_socket (value hv, value sockv) { CAMLparam2 (hv, sockv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.connect_socket"); /* OCaml Unix.file_descr is just an int, at least on Unix. */ int sock = Int_val (sockv); int r; caml_enter_blocking_section (); r = nbd_connect_socket (h, sock); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_connect_command (value hv, value argvv) { CAMLparam2 (hv, argvv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.connect_command"); char **argv = (char **) nbd_internal_ocaml_string_list (argvv); int r; caml_enter_blocking_section (); r = nbd_connect_command (h, argv); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; free (argv); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_connect_systemd_socket_activation (value hv, value argvv) { CAMLparam2 (hv, argvv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.connect_systemd_socket_activation"); char **argv = (char **) nbd_internal_ocaml_string_list (argvv); int r; caml_enter_blocking_section (); r = nbd_connect_systemd_socket_activation (h, argv); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; free (argv); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_is_read_only (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.is_read_only"); int r; caml_enter_blocking_section (); r = nbd_is_read_only (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_can_flush (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.can_flush"); int r; caml_enter_blocking_section (); r = nbd_can_flush (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_can_fua (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.can_fua"); int r; caml_enter_blocking_section (); r = nbd_can_fua (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_is_rotational (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.is_rotational"); int r; caml_enter_blocking_section (); r = nbd_is_rotational (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_can_trim (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.can_trim"); int r; caml_enter_blocking_section (); r = nbd_can_trim (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_can_zero (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.can_zero"); int r; caml_enter_blocking_section (); r = nbd_can_zero (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_can_fast_zero (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.can_fast_zero"); int r; caml_enter_blocking_section (); r = nbd_can_fast_zero (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_can_df (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.can_df"); int r; caml_enter_blocking_section (); r = nbd_can_df (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_can_multi_conn (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.can_multi_conn"); int r; caml_enter_blocking_section (); r = nbd_can_multi_conn (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_can_cache (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.can_cache"); int r; caml_enter_blocking_section (); r = nbd_can_cache (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_can_meta_context (value hv, value metacontextv) { CAMLparam2 (hv, metacontextv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.can_meta_context"); const char *metacontext = String_val (metacontextv); int r; caml_enter_blocking_section (); r = nbd_can_meta_context (h, metacontext); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_protocol (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_protocol"); const char * r; caml_enter_blocking_section (); r = nbd_get_protocol (h); caml_leave_blocking_section (); if (r == NULL) nbd_internal_ocaml_raise_error (); rv = caml_copy_string (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_size (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_size"); int64_t r; caml_enter_blocking_section (); r = nbd_get_size (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_pread (value flagsv, value hv, value bufv, value offsetv) { CAMLparam4 (flagsv, hv, bufv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.pread"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; void *buf = Bytes_val (bufv); size_t count = caml_string_length (bufv); uint64_t offset = Int64_val (offsetv); int r; caml_enter_blocking_section (); r = nbd_pread (h, buf, count, offset, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_pread_structured (value flagsv, value hv, value bufv, value offsetv, value chunkv) { CAMLparam5 (flagsv, hv, bufv, offsetv, chunkv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.pread_structured"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; void *buf = Bytes_val (bufv); size_t count = caml_string_length (bufv); uint64_t offset = Int64_val (offsetv); nbd_chunk_callback chunk_callback; struct user_data *chunk_user_data = alloc_user_data (); /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ chunk_user_data->fnv = chunkv; caml_register_generational_global_root (&chunk_user_data->fnv); chunk_callback.callback = chunk_wrapper; chunk_callback.user_data = chunk_user_data; chunk_callback.free = free_user_data; int r; caml_enter_blocking_section (); r = nbd_pread_structured (h, buf, count, offset, chunk_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_pwrite (value flagsv, value hv, value bufv, value offsetv) { CAMLparam4 (flagsv, hv, bufv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.pwrite"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; const void *buf = Bytes_val (bufv); size_t count = caml_string_length (bufv); uint64_t offset = Int64_val (offsetv); int r; caml_enter_blocking_section (); r = nbd_pwrite (h, buf, count, offset, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_shutdown (value flagsv, value hv) { CAMLparam2 (flagsv, hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.shutdown"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; int r; caml_enter_blocking_section (); r = nbd_shutdown (h, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_flush (value flagsv, value hv) { CAMLparam2 (flagsv, hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.flush"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; int r; caml_enter_blocking_section (); r = nbd_flush (h, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_trim (value flagsv, value hv, value countv, value offsetv) { CAMLparam4 (flagsv, hv, countv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.trim"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; uint64_t count = Int64_val (countv); uint64_t offset = Int64_val (offsetv); int r; caml_enter_blocking_section (); r = nbd_trim (h, count, offset, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_cache (value flagsv, value hv, value countv, value offsetv) { CAMLparam4 (flagsv, hv, countv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.cache"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; uint64_t count = Int64_val (countv); uint64_t offset = Int64_val (offsetv); int r; caml_enter_blocking_section (); r = nbd_cache (h, count, offset, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_zero (value flagsv, value hv, value countv, value offsetv) { CAMLparam4 (flagsv, hv, countv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.zero"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; uint64_t count = Int64_val (countv); uint64_t offset = Int64_val (offsetv); int r; caml_enter_blocking_section (); r = nbd_zero (h, count, offset, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_block_status (value flagsv, value hv, value countv, value offsetv, value extentv) { CAMLparam5 (flagsv, hv, countv, offsetv, extentv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.block_status"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; uint64_t count = Int64_val (countv); uint64_t offset = Int64_val (offsetv); nbd_extent_callback extent_callback; struct user_data *extent_user_data = alloc_user_data (); /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ extent_user_data->fnv = extentv; caml_register_generational_global_root (&extent_user_data->fnv); extent_callback.callback = extent_wrapper; extent_callback.user_data = extent_user_data; extent_callback.free = free_user_data; int r; caml_enter_blocking_section (); r = nbd_block_status (h, count, offset, extent_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_poll (value hv, value timeoutv) { CAMLparam2 (hv, timeoutv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.poll"); int timeout = Int_val (timeoutv); int r; caml_enter_blocking_section (); r = nbd_poll (h, timeout); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_int (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_connect (value hv, value addrv) { CAMLparam2 (hv, addrv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_connect"); const struct sockaddr *addr; socklen_t addrlen; abort (); int r; caml_enter_blocking_section (); r = nbd_aio_connect (h, addr, addrlen); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_connect_uri (value hv, value uriv) { CAMLparam2 (hv, uriv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_connect_uri"); const char *uri = String_val (uriv); int r; caml_enter_blocking_section (); r = nbd_aio_connect_uri (h, uri); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_connect_unix (value hv, value unixsocketv) { CAMLparam2 (hv, unixsocketv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_connect_unix"); const char *unixsocket = String_val (unixsocketv); int r; caml_enter_blocking_section (); r = nbd_aio_connect_unix (h, unixsocket); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_connect_vsock (value hv, value cidv, value portv) { CAMLparam3 (hv, cidv, portv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_connect_vsock"); uint32_t cid = Int32_val (cidv); uint32_t port = Int32_val (portv); int r; caml_enter_blocking_section (); r = nbd_aio_connect_vsock (h, cid, port); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_connect_tcp (value hv, value hostnamev, value portv) { CAMLparam3 (hv, hostnamev, portv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_connect_tcp"); const char *hostname = String_val (hostnamev); const char *port = String_val (portv); int r; caml_enter_blocking_section (); r = nbd_aio_connect_tcp (h, hostname, port); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_connect_socket (value hv, value sockv) { CAMLparam2 (hv, sockv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_connect_socket"); /* OCaml Unix.file_descr is just an int, at least on Unix. */ int sock = Int_val (sockv); int r; caml_enter_blocking_section (); r = nbd_aio_connect_socket (h, sock); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_connect_command (value hv, value argvv) { CAMLparam2 (hv, argvv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_connect_command"); char **argv = (char **) nbd_internal_ocaml_string_list (argvv); int r; caml_enter_blocking_section (); r = nbd_aio_connect_command (h, argv); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; free (argv); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_connect_systemd_socket_activation (value hv, value argvv) { CAMLparam2 (hv, argvv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_connect_systemd_socket_activation"); char **argv = (char **) nbd_internal_ocaml_string_list (argvv); int r; caml_enter_blocking_section (); r = nbd_aio_connect_systemd_socket_activation (h, argv); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; free (argv); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_pread (value completionv, value flagsv, value hv, value bufv, value offsetv) { CAMLparam5 (completionv, flagsv, hv, bufv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_pread"); nbd_completion_callback completion_callback = {0}; struct user_data *completion_user_data = alloc_user_data (); if (completionv != Val_int (0)) { /* Some closure */ /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ completion_user_data->fnv = Field (completionv, 0); caml_register_generational_global_root (&completion_user_data->fnv); completion_callback.callback = completion_wrapper; } completion_callback.user_data = completion_user_data; completion_callback.free = free_user_data; uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; struct nbd_buffer *buf_buf = NBD_buffer_val (bufv); void *buf = buf_buf->data; size_t count = buf_buf->len; uint64_t offset = Int64_val (offsetv); completion_user_data->bufv = bufv; caml_register_generational_global_root (&completion_user_data->bufv); int64_t r; caml_enter_blocking_section (); r = nbd_aio_pread (h, buf, count, offset, completion_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_pread_structured (value completionv, value flagsv, value hv, value bufv, value offsetv, value chunkv) { CAMLparam5 (completionv, flagsv, hv, bufv, offsetv); CAMLxparam1 (chunkv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_pread_structured"); nbd_completion_callback completion_callback = {0}; struct user_data *completion_user_data = alloc_user_data (); if (completionv != Val_int (0)) { /* Some closure */ /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ completion_user_data->fnv = Field (completionv, 0); caml_register_generational_global_root (&completion_user_data->fnv); completion_callback.callback = completion_wrapper; } completion_callback.user_data = completion_user_data; completion_callback.free = free_user_data; uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; struct nbd_buffer *buf_buf = NBD_buffer_val (bufv); void *buf = buf_buf->data; size_t count = buf_buf->len; uint64_t offset = Int64_val (offsetv); nbd_chunk_callback chunk_callback; struct user_data *chunk_user_data = alloc_user_data (); /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ chunk_user_data->fnv = chunkv; caml_register_generational_global_root (&chunk_user_data->fnv); chunk_callback.callback = chunk_wrapper; chunk_callback.user_data = chunk_user_data; chunk_callback.free = free_user_data; completion_user_data->bufv = bufv; caml_register_generational_global_root (&completion_user_data->bufv); int64_t r; caml_enter_blocking_section (); r = nbd_aio_pread_structured (h, buf, count, offset, chunk_callback, completion_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } /* Byte-code compat function because this method has > 5 parameters. */ value nbd_internal_ocaml_nbd_aio_pread_structured_byte (value *argv, int argn) { return nbd_internal_ocaml_nbd_aio_pread_structured (argv[0], argv[1], argv[2], argv[3], argv[4], argv[5]); } value nbd_internal_ocaml_nbd_aio_pwrite (value completionv, value flagsv, value hv, value bufv, value offsetv) { CAMLparam5 (completionv, flagsv, hv, bufv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_pwrite"); nbd_completion_callback completion_callback = {0}; struct user_data *completion_user_data = alloc_user_data (); if (completionv != Val_int (0)) { /* Some closure */ /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ completion_user_data->fnv = Field (completionv, 0); caml_register_generational_global_root (&completion_user_data->fnv); completion_callback.callback = completion_wrapper; } completion_callback.user_data = completion_user_data; completion_callback.free = free_user_data; uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; struct nbd_buffer *buf_buf = NBD_buffer_val (bufv); const void *buf = buf_buf->data; size_t count = buf_buf->len; uint64_t offset = Int64_val (offsetv); completion_user_data->bufv = bufv; caml_register_generational_global_root (&completion_user_data->bufv); int64_t r; caml_enter_blocking_section (); r = nbd_aio_pwrite (h, buf, count, offset, completion_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_disconnect (value flagsv, value hv) { CAMLparam2 (flagsv, hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_disconnect"); uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; int r; caml_enter_blocking_section (); r = nbd_aio_disconnect (h, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_flush (value completionv, value flagsv, value hv) { CAMLparam3 (completionv, flagsv, hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_flush"); nbd_completion_callback completion_callback = {0}; struct user_data *completion_user_data = alloc_user_data (); if (completionv != Val_int (0)) { /* Some closure */ /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ completion_user_data->fnv = Field (completionv, 0); caml_register_generational_global_root (&completion_user_data->fnv); completion_callback.callback = completion_wrapper; } completion_callback.user_data = completion_user_data; completion_callback.free = free_user_data; uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; int64_t r; caml_enter_blocking_section (); r = nbd_aio_flush (h, completion_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_trim (value completionv, value flagsv, value hv, value countv, value offsetv) { CAMLparam5 (completionv, flagsv, hv, countv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_trim"); nbd_completion_callback completion_callback = {0}; struct user_data *completion_user_data = alloc_user_data (); if (completionv != Val_int (0)) { /* Some closure */ /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ completion_user_data->fnv = Field (completionv, 0); caml_register_generational_global_root (&completion_user_data->fnv); completion_callback.callback = completion_wrapper; } completion_callback.user_data = completion_user_data; completion_callback.free = free_user_data; uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; uint64_t count = Int64_val (countv); uint64_t offset = Int64_val (offsetv); int64_t r; caml_enter_blocking_section (); r = nbd_aio_trim (h, count, offset, completion_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_cache (value completionv, value flagsv, value hv, value countv, value offsetv) { CAMLparam5 (completionv, flagsv, hv, countv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_cache"); nbd_completion_callback completion_callback = {0}; struct user_data *completion_user_data = alloc_user_data (); if (completionv != Val_int (0)) { /* Some closure */ /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ completion_user_data->fnv = Field (completionv, 0); caml_register_generational_global_root (&completion_user_data->fnv); completion_callback.callback = completion_wrapper; } completion_callback.user_data = completion_user_data; completion_callback.free = free_user_data; uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; uint64_t count = Int64_val (countv); uint64_t offset = Int64_val (offsetv); int64_t r; caml_enter_blocking_section (); r = nbd_aio_cache (h, count, offset, completion_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_zero (value completionv, value flagsv, value hv, value countv, value offsetv) { CAMLparam5 (completionv, flagsv, hv, countv, offsetv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_zero"); nbd_completion_callback completion_callback = {0}; struct user_data *completion_user_data = alloc_user_data (); if (completionv != Val_int (0)) { /* Some closure */ /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ completion_user_data->fnv = Field (completionv, 0); caml_register_generational_global_root (&completion_user_data->fnv); completion_callback.callback = completion_wrapper; } completion_callback.user_data = completion_user_data; completion_callback.free = free_user_data; uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; uint64_t count = Int64_val (countv); uint64_t offset = Int64_val (offsetv); int64_t r; caml_enter_blocking_section (); r = nbd_aio_zero (h, count, offset, completion_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_block_status (value completionv, value flagsv, value hv, value countv, value offsetv, value extentv) { CAMLparam5 (completionv, flagsv, hv, countv, offsetv); CAMLxparam1 (extentv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_block_status"); nbd_completion_callback completion_callback = {0}; struct user_data *completion_user_data = alloc_user_data (); if (completionv != Val_int (0)) { /* Some closure */ /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ completion_user_data->fnv = Field (completionv, 0); caml_register_generational_global_root (&completion_user_data->fnv); completion_callback.callback = completion_wrapper; } completion_callback.user_data = completion_user_data; completion_callback.free = free_user_data; uint32_t flags; if (flagsv != Val_int (0)) /* Some [ list of CMD_FLAG.t ] */ flags = CMD_FLAG_val (Field (flagsv, 0)); else /* None */ flags = 0; uint64_t count = Int64_val (countv); uint64_t offset = Int64_val (offsetv); nbd_extent_callback extent_callback; struct user_data *extent_user_data = alloc_user_data (); /* The function may save a reference to the closure, so we * must treat it as a possible GC root. */ extent_user_data->fnv = extentv; caml_register_generational_global_root (&extent_user_data->fnv); extent_callback.callback = extent_wrapper; extent_callback.user_data = extent_user_data; extent_callback.free = free_user_data; int64_t r; caml_enter_blocking_section (); r = nbd_aio_block_status (h, count, offset, extent_callback, completion_callback, flags); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } /* Byte-code compat function because this method has > 5 parameters. */ value nbd_internal_ocaml_nbd_aio_block_status_byte (value *argv, int argn) { return nbd_internal_ocaml_nbd_aio_block_status (argv[0], argv[1], argv[2], argv[3], argv[4], argv[5]); } value nbd_internal_ocaml_nbd_aio_get_fd (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_get_fd"); int r; caml_enter_blocking_section (); r = nbd_aio_get_fd (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_int (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_get_direction (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_get_direction"); unsigned r; caml_enter_blocking_section (); r = nbd_aio_get_direction (h); caml_leave_blocking_section (); rv = Val_int (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_notify_read (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_notify_read"); int r; caml_enter_blocking_section (); r = nbd_aio_notify_read (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_notify_write (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_notify_write"); int r; caml_enter_blocking_section (); r = nbd_aio_notify_write (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_is_created (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_is_created"); int r; caml_enter_blocking_section (); r = nbd_aio_is_created (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_is_connecting (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_is_connecting"); int r; caml_enter_blocking_section (); r = nbd_aio_is_connecting (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_is_ready (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_is_ready"); int r; caml_enter_blocking_section (); r = nbd_aio_is_ready (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_is_processing (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_is_processing"); int r; caml_enter_blocking_section (); r = nbd_aio_is_processing (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_is_dead (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_is_dead"); int r; caml_enter_blocking_section (); r = nbd_aio_is_dead (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_is_closed (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_is_closed"); int r; caml_enter_blocking_section (); r = nbd_aio_is_closed (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_command_completed (value hv, value cookiev) { CAMLparam2 (hv, cookiev); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_command_completed"); int64_t cookie = Int64_val (cookiev); int r; caml_enter_blocking_section (); r = nbd_aio_command_completed (h, cookie); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_peek_command_completed (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_peek_command_completed"); int64_t r; caml_enter_blocking_section (); r = nbd_aio_peek_command_completed (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = caml_copy_int64 (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_aio_in_flight (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.aio_in_flight"); int r; caml_enter_blocking_section (); r = nbd_aio_in_flight (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_int (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_connection_state (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.connection_state"); const char * r; caml_enter_blocking_section (); r = nbd_connection_state (h); caml_leave_blocking_section (); if (r == NULL) nbd_internal_ocaml_raise_error (); rv = caml_copy_string (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_package_name (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_package_name"); const char * r; caml_enter_blocking_section (); r = nbd_get_package_name (h); caml_leave_blocking_section (); if (r == NULL) nbd_internal_ocaml_raise_error (); rv = caml_copy_string (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_get_version (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.get_version"); const char * r; caml_enter_blocking_section (); r = nbd_get_version (h); caml_leave_blocking_section (); if (r == NULL) nbd_internal_ocaml_raise_error (); rv = caml_copy_string (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_kill_subprocess (value hv, value signumv) { CAMLparam2 (hv, signumv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.kill_subprocess"); int signum = Int_val (signumv); int r; caml_enter_blocking_section (); r = nbd_kill_subprocess (h, signum); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_unit; CAMLreturn (rv); } value nbd_internal_ocaml_nbd_supports_tls (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.supports_tls"); int r; caml_enter_blocking_section (); r = nbd_supports_tls (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_supports_uri (value hv) { CAMLparam1 (hv); CAMLlocal1 (rv); struct nbd_handle *h = NBD_val (hv); if (h == NULL) nbd_internal_ocaml_raise_closed ("NBD.supports_uri"); int r; caml_enter_blocking_section (); r = nbd_supports_uri (h); caml_leave_blocking_section (); if (r == -1) nbd_internal_ocaml_raise_error (); rv = Val_bool (r); CAMLreturn (rv); } �����������������������������������������������libnbd-1.2.2/ocaml/nbd-c.h��������������������������������������������������������������������������0000664�0001750�0001750�00000007773�13616543155�012147� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Various shared definitions for OCaml bindings. */ #ifndef LIBNBD_NBD_C_H #define LIBNBD_NBD_C_H #include <stdint.h> #include <string.h> #include <caml/alloc.h> #include <caml/custom.h> #include <caml/memory.h> #include <caml/mlvalues.h> /* Workaround for OCaml < 4.06.0 */ #ifndef Bytes_val #define Bytes_val(x) String_val(x) #endif /* Wrapper around caml_alloc_custom_mem for pre-2019 versions of OCaml. */ #ifndef HAVE_CAML_ALLOC_CUSTOM_MEM #define caml_alloc_custom_mem(ops, obj, size) \ caml_alloc_custom ((ops), (obj), 0, 1) #endif /* Replacement if caml_alloc_initialized_string is missing, added * to OCaml runtime in 2017. */ #ifndef HAVE_CAML_ALLOC_INITIALIZED_STRING static inline value caml_alloc_initialized_string (mlsize_t len, const char *p) { value sv = caml_alloc_string (len); memcpy ((char *) String_val (sv), p, len); return sv; } #endif extern void nbd_internal_ocaml_handle_finalize (value); extern void nbd_internal_ocaml_buffer_finalize (value); extern void nbd_internal_ocaml_raise_error (void) Noreturn; extern void nbd_internal_ocaml_raise_closed (const char *func) Noreturn; extern const char **nbd_internal_ocaml_string_list (value); extern value nbd_internal_ocaml_alloc_int32_array (uint32_t *, size_t); extern void nbd_internal_ocaml_exception_in_wrapper (const char *, value); /* Extract an NBD handle from an OCaml heap value. */ #define NBD_val(v) (*((struct nbd_handle **)Data_custom_val(v))) static struct custom_operations libnbd_custom_operations = { (char *) "libnbd_custom_operations", nbd_internal_ocaml_handle_finalize, custom_compare_default, custom_hash_default, custom_serialize_default, custom_deserialize_default, custom_compare_ext_default, }; /* Embed an NBD handle in an OCaml heap value. */ static inline value Val_nbd (struct nbd_handle *h) { CAMLparam0 (); CAMLlocal1 (rv); /* We don't have a good way to estimate the size of the C handle, * but on 2019-08-17, just the handle (not even including any linked * buffers or structures) was 4720 bytes. */ rv = caml_alloc_custom_mem (&libnbd_custom_operations, sizeof (struct nbd_handle *), 5000); NBD_val (rv) = h; CAMLreturn (rv); } /* Persistent buffer for AIO. */ struct nbd_buffer { void *data; size_t len; }; /* Extract a persistent buffer from an OCaml heap value. Note the * whole struct is stored in the custom, not a pointer. This * returns a pointer to the struct . */ #define NBD_buffer_val(v) ((struct nbd_buffer *)Data_custom_val(v)) static struct custom_operations nbd_buffer_custom_operations = { (char *) "nbd_buffer_custom_operations", nbd_internal_ocaml_buffer_finalize, custom_compare_default, custom_hash_default, custom_serialize_default, custom_deserialize_default, custom_compare_ext_default, }; /* Embed an NBD persistent buffer in an OCaml heap value. */ static inline value Val_nbd_buffer (struct nbd_buffer b) { CAMLparam0 (); CAMLlocal1 (rv); rv = caml_alloc_custom_mem (&nbd_buffer_custom_operations, sizeof (struct nbd_buffer), sizeof b + b.len); *NBD_buffer_val (rv) = b; CAMLreturn (rv); } #endif /* LIBNBD_NBD_C_H */ �����libnbd-1.2.2/ocaml/buffer.c�������������������������������������������������������������������������0000664�0001750�0001750�00000004452�13525761303�012413� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <caml/alloc.h> #include <caml/fail.h> #include <caml/memory.h> #include <caml/mlvalues.h> #include <libnbd.h> #include "nbd-c.h" void nbd_internal_ocaml_buffer_finalize (value bv) { struct nbd_buffer *b = NBD_buffer_val (bv); free (b->data); } /* Allocate an NBD persistent buffer. */ value nbd_internal_ocaml_buffer_alloc (value sizev) { CAMLparam1 (sizev); CAMLlocal1 (rv); struct nbd_buffer b; b.len = Int_val (sizev); b.data = malloc (b.len); if (b.data == NULL) caml_raise_out_of_memory (); rv = Val_nbd_buffer (b); CAMLreturn (rv); } /* Copy an NBD persistent buffer to an OCaml bytes. */ value nbd_internal_ocaml_buffer_to_bytes (value bv) { CAMLparam1 (bv); CAMLlocal1 (rv); struct nbd_buffer *b = NBD_buffer_val (bv); rv = caml_alloc_string (b->len); memcpy (Bytes_val (rv), b->data, b->len); CAMLreturn (rv); } /* Copy an OCaml bytes into an NBD persistent buffer. */ value nbd_internal_ocaml_buffer_of_bytes (value bytesv) { CAMLparam1 (bytesv); CAMLlocal1 (rv); struct nbd_buffer b; b.len = caml_string_length (bytesv); b.data = malloc (b.len); if (b.data == NULL) caml_raise_out_of_memory (); memcpy (b.data, Bytes_val (bytesv), b.len); rv = Val_nbd_buffer (b); CAMLreturn (rv); } value nbd_internal_ocaml_buffer_size (value bv) { CAMLparam1 (bv); CAMLlocal1 (rv); struct nbd_buffer *b = NBD_buffer_val (bv); CAMLreturn (Val_int (b->len)); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/handle.c�������������������������������������������������������������������������0000664�0001750�0001750�00000003115�13525761367�012402� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <caml/alloc.h> #include <caml/callback.h> #include <caml/fail.h> #include <caml/memory.h> #include <caml/mlvalues.h> #include <libnbd.h> #include "nbd-c.h" void nbd_internal_ocaml_handle_finalize (value hv) { struct nbd_handle *h = NBD_val (hv); nbd_close (h); } value nbd_internal_ocaml_nbd_create (value unitv) { CAMLparam1 (unitv); CAMLlocal1 (rv); struct nbd_handle *h; h = nbd_create (); if (h == NULL) nbd_internal_ocaml_raise_error (); rv = Val_nbd (h); CAMLreturn (rv); } value nbd_internal_ocaml_nbd_close (value hv) { CAMLparam1 (hv); nbd_internal_ocaml_handle_finalize (hv); /* So we don't double-free in the finalizer. */ NBD_val (hv) = NULL; CAMLreturn (Val_unit); } ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/helpers.c������������������������������������������������������������������������0000664�0001750�0001750�00000007217�13616543155�012612� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Miscellaneous helper functions used in the OCaml bindings. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <caml/alloc.h> #include <caml/callback.h> #include <caml/fail.h> #include <caml/memory.h> #include <caml/mlvalues.h> #include <caml/printexc.h> #include <libnbd.h> #include "nbd-c.h" void nbd_internal_ocaml_raise_error (void) { CAMLparam0 (); CAMLlocal1 (sv); value v[2]; const char *msg; int err; msg = nbd_get_error (); err = nbd_get_errno (); if (msg) sv = caml_copy_string (msg); else sv = caml_copy_string ("no error message available"); v[0] = sv; v[1] = Val_int (err); caml_raise_with_args (*caml_named_value ("nbd_internal_ocaml_error"), 2, v); CAMLnoreturn; } void nbd_internal_ocaml_raise_closed (const char *func) { CAMLparam0 (); CAMLlocal1 (sv); sv = caml_copy_string (func); caml_raise_with_arg (*caml_named_value ("nbd_internal_ocaml_closed"), sv); CAMLnoreturn; } /* The caller should free the array, but NOT the strings, since the * strings point to OCaml strings. */ const char ** nbd_internal_ocaml_string_list (value ssv) { CAMLparam1 (ssv); CAMLlocal1 (sv); size_t i, len; const char **r; sv = ssv; for (len = 0; sv != Val_emptylist; sv = Field (sv, 1)) len++; r = malloc (sizeof (const char *) * (len+1)); if (r == NULL) caml_raise_out_of_memory (); sv = ssv; for (i = 0; sv != Val_emptylist; sv = Field (sv, 1), i++) r[i] = String_val (Field (sv, 0)); r[len] = NULL; CAMLreturnT (const char **, r); } value nbd_internal_ocaml_alloc_int32_array (uint32_t *a, size_t len) { CAMLparam0 (); CAMLlocal2 (v, rv); size_t i; rv = caml_alloc (len, 0); for (i = 0; i < len; ++i) { v = caml_copy_int32 (a[i]); Store_field (rv, i, v); } CAMLreturn (rv); } /* Common code when an exception is raised in an OCaml callback and * the wrapper has to deal with it. Callbacks are not supposed to * raise exceptions, so we print it. We also handle Assert_failure * specially by abort()-ing. */ void nbd_internal_ocaml_exception_in_wrapper (const char *cbname, value rv) { CAMLparam1 (rv); CAMLlocal1 (exn); const char *exn_name; char *s; exn = Extract_exception (rv); /* For how we're getting the exception name, see: * https://github.com/libguestfs/libguestfs/blob/5d94be2583d557cfc7f8a8cfee7988abfa45a3f8/daemon/daemon-c.c#L40 */ if (Tag_val (Field (exn, 0)) == String_tag) exn_name = String_val (Field (exn, 0)); else exn_name = String_val (Field (Field (exn, 0), 0)); s = caml_format_exception (exn); fprintf (stderr, "libnbd: %s: uncaught OCaml exception: %s\n", cbname, s); free (s); /* If the exception is fatal (like Assert_failure) then abort. */ if (exn_name && strcmp (exn_name, "Assert_failure") == 0) abort (); CAMLreturn0; } ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/NBD.mli��������������������������������������������������������������������������0000444�0001750�0001750�00000163235�13616543402�012104� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) (** OCaml bindings for libnbd. For full documentation see libnbd-ocaml(3) and libnbd(3). For examples written in OCaml see the libnbd source code [ocaml/examples] subdirectory. *) exception Error of string * int (** Exception thrown when an API call fails. The string is the error message, and the int is the raw errno (if available). *) exception Closed of string (** Exception thrown if you call a closed handle. *) type cookie = int64 module TLS : sig type t = | DISABLE | ALLOW | REQUIRE end module CMD_FLAG : sig type t = | FUA | NO_HOLE | DF | REQ_ONE | FAST_ZERO end module HANDSHAKE_FLAG : sig type t = | FIXED_NEWSTYLE | NO_ZEROES end module ALLOW_TRANSPORT : sig type t = | TCP | UNIX | VSOCK end val aio_direction_read : int32 val aio_direction_write : int32 val aio_direction_both : int32 val read_data : int32 val read_hole : int32 val read_error : int32 val namespace_base : string val context_base_allocation : string val state_hole : int32 val state_zero : int32 module Buffer : sig type t (** Persistent, mutable C-compatible malloc'd buffer, used in AIO calls. *) val alloc : int -> t (** Allocate an uninitialized buffer. The parameter is the size in bytes. *) val to_bytes : t -> bytes (** Copy buffer to an OCaml [bytes] object. *) val of_bytes : bytes -> t (** Copy an OCaml [bytes] object to a newly allocated buffer. *) val size : t -> int (** Return the size of the buffer. *) end (** Persistent buffer used in AIO calls. *) type t (** The handle. *) val create : unit -> t (** Create a new handle. *) val close : t -> unit (** Close a handle. Handles can also be closed by the garbage collector when they become unreachable. This call is used only if you want to force the handle to close now and reclaim resources immediately. *) val set_debug : t -> bool -> unit (** set or clear the debug flag Set or clear the debug flag. When debugging is enabled, debugging messages from the library are printed to stderr, unless a debugging callback has been defined too (see nbd_set_debug_callback(3)) in which case they are sent to that function. This flag defaults to false on newly created handles, except if "LIBNBD_DEBUG=1" is set in the environment in which case it defaults to true. *) val get_debug : t -> bool (** return the state of the debug flag Return the state of the debug flag on this handle. *) val set_debug_callback : t -> (string -> string -> int) -> unit (** set the debug callback Set the debug callback. This function is called when the library emits debug messages, when debugging is enabled on a handle. The callback parameters are "user_data" passed to this function, the name of the libnbd function emitting the debug message ("context"), and the message itself ("msg"). If no debug callback is set on a handle then messages are printed on "stderr". The callback should not call "nbd_*" APIs on the same handle since it can be called while holding the handle lock and will cause a deadlock. *) val clear_debug_callback : t -> unit (** clear the debug callback Remove the debug callback if one was previously associated with the handle (with nbd_set_debug_callback(3)). If no callback was associated this does nothing. *) val set_handle_name : t -> string -> unit (** set the handle name Handles have a name which is unique within the current process. The handle name is used in debug output. Handle names are normally generated automatically and have the form "nbd1", "nbd2", etc., but you can optionally use this call to give the handles a name which is meaningful for your application to make debugging output easier to understand. *) val get_handle_name : t -> string (** get the handle name Get the name of the handle. If it was previously set by calling nbd_set_handle_name(3) then this returns the name that was set. Otherwise it will return a generic name like "nbd1", "nbd2", etc. *) val set_export_name : t -> string -> unit (** set the export name For servers which require an export name or can serve different content on different exports, set the "export_name" to connect to. The default is the empty string "". This is only relevant when connecting to servers using the newstyle protocol as the oldstyle protocol did not support export names. The NBD protocol limits export names to 4096 bytes, but servers may not support the full length. The encoding of export names is always UTF-8. This call may be skipped if using nbd_connect_uri(3) to connect to a URI that includes an export name. *) val get_export_name : t -> string (** get the export name Get the export name associated with the handle. *) val set_tls : t -> TLS.t -> unit (** enable or require TLS (authentication and encryption) Enable or require TLS (authenticated and encrypted connections) to the NBD server. The possible settings are: "LIBNBD_TLS_DISABLE" Disable TLS. (The default setting, unless using nbd_connect_uri(3) with a URI that requires TLS) "LIBNBD_TLS_ALLOW" Enable TLS if possible. This option is insecure (or best effort) in that in some cases it will fall back to an unencrypted and/or unauthenticated connection if TLS could not be established. Use "LIBNBD_TLS_REQUIRE" below if the connection must be encrypted. Some servers will drop the connection if TLS fails so fallback may not be possible. "LIBNBD_TLS_REQUIRE" Require an encrypted and authenticated TLS connection. Always fail to connect if the connection is not encrypted and authenticated. As well as calling this you may also need to supply the path to the certificates directory (nbd_set_tls_certificates(3)), the username (nbd_set_tls_username(3)) and/or the Pre-Shared Keys (PSK) file (nbd_set_tls_psk_file(3)). For now, when using nbd_connect_uri(3), any URI query parameters related to TLS are not handled automatically. Setting the level higher than zero will fail if libnbd was not compiled against gnutls; you can test whether this is the case with nbd_supports_tls(3). *) val get_tls : t -> int (** get the TLS request setting Get the TLS request setting. Note: If you want to find out if TLS was actually negotiated on a particular connection use nbd_get_tls_negotiated(3) instead. *) val get_tls_negotiated : t -> bool (** find out if TLS was negotiated on a connection After connecting you may call this to find out if the connection is using TLS. This is only really useful if you set the TLS request mode to "LIBNBD_TLS_ALLOW" (see nbd_set_tls(3)), because in this mode we try to use TLS but fall back to unencrypted if it was not available. This function will tell you if TLS was negotiated or not. In "LIBNBD_TLS_REQUIRE" mode (the most secure) the connection would have failed if TLS could not be negotiated, and in "LIBNBD_TLS_DISABLE" mode TLS is not tried. *) val set_tls_certificates : t -> string -> unit (** set the path to the TLS certificates directory Set the path to the TLS certificates directory. If not set and TLS is used then a compiled in default is used. For root this is "/etc/pki/libnbd/". For non-root this is "$HOME/.pki/libnbd" and "$HOME/.config/pki/libnbd". If none of these directories can be found then the system trusted CAs are used. This function may be called regardless of whether TLS is supported, but will have no effect unless nbd_set_tls(3) is also used to request or require TLS. *) val set_tls_verify_peer : t -> bool -> unit (** set whether we verify the identity of the server Set this flag to control whether libnbd will verify the identity of the server from the server's certificate and the certificate authority. This defaults to true when connecting to TCP servers using TLS certificate authentication, and false otherwise. This function may be called regardless of whether TLS is supported, but will have no effect unless nbd_set_tls(3) is also used to request or require TLS. *) val get_tls_verify_peer : t -> bool (** get whether we verify the identity of the server Get the verify peer flag. *) val set_tls_username : t -> string -> unit (** set the TLS username Set the TLS client username. This is used if authenticating with PSK over TLS is enabled. If not set then the local username is used. This function may be called regardless of whether TLS is supported, but will have no effect unless nbd_set_tls(3) is also used to request or require TLS. *) val get_tls_username : t -> string (** get the current TLS username Get the current TLS username. *) val set_tls_psk_file : t -> string -> unit (** set the TLS Pre-Shared Keys (PSK) filename Set the TLS Pre-Shared Keys (PSK) filename. This is used if trying to authenticate to the server using with a pre-shared key. There is no default so if this is not set then PSK authentication cannot be used to connect to the server. This function may be called regardless of whether TLS is supported, but will have no effect unless nbd_set_tls(3) is also used to request or require TLS. *) val set_request_structured_replies : t -> bool -> unit (** control use of structured replies By default, libnbd tries to negotiate structured replies with the server, as this protocol extension must be in use before "nbd_can_meta_context" or "nbd_can_df" can return true. However, for integration testing, it can be useful to clear this flag rather than find a way to alter the server to fail the negotiation request. *) val get_request_structured_replies : t -> bool (** see if structured replies are attempted Return the state of the request structured replies flag on this handle. Note: If you want to find out if structured replies were actually negotiated on a particular connection use "nbd_get_structured_replies_negotiated" instead. *) val get_structured_replies_negotiated : t -> bool (** see if structured replies are in use After connecting you may call this to find out if the connection is using structured replies. *) val set_handshake_flags : t -> HANDSHAKE_FLAG.t -> unit (** control use of handshake flags By default, libnbd tries to negotiate all possible handshake flags that are also supported by the server; since omitting a handshake flag can prevent the use of other functionality such as TLS encryption or structured replies. However, for integration testing, it can be useful to reduce the set of flags supported by the client to test that a particular server can handle various clients that were compliant to older versions of the NBD specification. The "flags" argument is a bitmask, including zero or more of the following handshake flags: "LIBNBD_HANDSHAKE_FLAG_FIXED_NEWSTYLE" = 1 The server gracefully handles unknown option requests from the client, rather than disconnecting. Without this flag, a client cannot safely request to use extensions such as TLS encryption or structured replies, as the request may cause an older server to drop the connection. "LIBNBD_HANDSHAKE_FLAG_NO_ZEROES" = 2 If the client is forced to use "NBD_OPT_EXPORT_NAME" instead of the preferred "NBD_OPT_GO", this flag allows the server to send fewer all-zero padding bytes over the connection. Future NBD extensions may add further flags. *) val get_handshake_flags : t -> int (** see which handshake flags are supported Return the state of the handshake flags on this handle. When the handle has not yet completed a connection (see "nbd_aio_is_created"), this returns the flags that the client is willing to use, provided the server also advertises those flags. After the connection is ready (see "nbd_aio_is_ready"), this returns the flags that were actually agreed on between the server and client. If the NBD protocol defines new handshake flags, then the return value from a newer library version may include bits that were undefined at the time of compilation. *) val add_meta_context : t -> string -> unit (** ask server to negotiate metadata context During connection libnbd can negotiate zero or more metadata contexts with the server. Metadata contexts are features (such as "base:allocation") which describe information returned by the nbd_block_status(3) command (for "base:allocation" this is whether blocks of data are allocated, zero or sparse). This call adds one metadata context to the list to be negotiated. You can call it as many times as needed. The list is initially empty when the handle is created. The NBD protocol limits meta context names to 4096 bytes, but servers may not support the full length. The encoding of meta context names is always UTF-8. Not all servers support all metadata contexts. To learn if a context was actually negotiated, call nbd_can_meta_context(3) after connecting. The single parameter is the name of the metadata context, for example "LIBNBD_CONTEXT_BASE_ALLOCATION". <libnbd.h> includes defined constants beginning with "LIBNBD_CONTEXT_" for some well-known contexts, but you are free to pass in other contexts. Other metadata contexts are server-specific, but include "qemu:dirty-bitmap:..." for qemu-nbd (see qemu-nbd *-B* option). *) val set_uri_allow_transports : t -> ALLOW_TRANSPORT.t -> unit (** set the allowed transports in NBD URIs Set which transports are allowed to appear in NBD URIs. The default is to allow any transport. The "mask" parameter may contain any of the following flags ORed together: "LIBNBD_ALLOW_TRANSPORT_TCP" "LIBNBD_ALLOW_TRANSPORT_UNIX" "LIBNBD_ALLOW_TRANSPORT_VSOCK" *) val set_uri_allow_tls : t -> TLS.t -> unit (** set the allowed TLS settings in NBD URIs Set which TLS settings are allowed to appear in NBD URIs. The default is to allow either non-TLS or TLS URIs. The "tls" parameter can be: "LIBNBD_TLS_DISABLE" TLS URIs are not permitted, ie. a URI such as "nbds://..." will be rejected. "LIBNBD_TLS_ALLOW" This is the default. TLS may be used or not, depending on whether the URI uses "nbds" or "nbd". "LIBNBD_TLS_REQUIRE" TLS URIs are required. All URIs must use "nbds". *) val set_uri_allow_local_file : t -> bool -> unit (** set the allowed transports in NBD URIs Allow NBD URIs to reference local files. This is *disabled* by default. Currently this setting only controls whether the "tls-psk-file" parameter in NBD URIs is allowed. *) val connect_uri : t -> string -> unit (** connect to NBD URI Connect (synchronously) to an NBD server and export by specifying the NBD URI. This call parses the URI and may call nbd_set_export_name(3) and nbd_set_tls(3) and other calls as needed, followed by nbd_connect_tcp(3) or nbd_connect_unix(3). This call returns when the connection has been made. Example URIs supported "nbd://example.com" Connect over TCP, unencrypted, to "example.com" port 10809. "nbds://example.com" Connect over TCP with TLS, to "example.com" port 10809. If the server does not support TLS then this will fail. "nbd+unix:///foo?socket=/tmp/nbd.sock" Connect over the Unix domain socket /tmp/nbd.sock to an NBD server running locally. The export name is set to "foo" (note without any leading "/" character). "nbd+vsock:///" In this scenario libnbd is running in a virtual machine. Connect over "AF_VSOCK" to an NBD server running on the hypervisor. Supported URI formats The following schemes are supported in the current version of libnbd: "nbd:" Connect over TCP without using TLS. "nbds:" Connect over TCP. TLS is required and the connection will fail if the server does not support TLS. "nbd+unix:" "nbds+unix:" Connect over a Unix domain socket, without or with TLS respectively. The "socket" parameter is required. "nbd+vsock:" "nbds+vsock:" Connect over the "AF_VSOCK" transport, without or with TLS respectively. The authority part of the URI ("[username@][servername][:port]") is parsed depending on the transport. For TCP it specifies the server to connect to and optional port number. For "+unix" it should not be present. For "+vsock" the server name is the numeric CID (eg. 2 to connect to the host), and the optional port number may be present. If the "username" is present it is used for TLS authentication. For all transports, an export name may be present, parsed in accordance with the NBD URI specification. Finally the query part of the URI can contain: socket=SOCKET Specifies the Unix domain socket to connect on. Must be present for the "+unix" transport and must not be present for the other transports. tls-psk-file=PSKFILE Set the PSK file. See nbd_set_tls_psk_file(3). Note this is not allowed by default - see next section. Disable URI features For security reasons you might want to disable certain URI features. Pre-filtering URIs is error-prone and should not be attempted. Instead use the libnbd APIs below to control what can appear in URIs. Note you must call these functions on the same handle before calling "nbd_connect_uri" or nbd_aio_connect_uri(3). TCP, Unix domain socket or "AF_VSOCK" transports Default: all allowed To select which transports are allowed call nbd_set_uri_allow_transports(3). TLS Default: both non-TLS and TLS connections allowed To force TLS off or on in URIs call nbd_set_uri_allow_tls(3). Connect to Unix domain socket in the local filesystem Default: allowed To prevent this you must disable the "+unix" transport using nbd_set_uri_allow_transports(3). Read from local files Default: denied To allow URIs to contain references to local files (eg. for parameters like "tls-psk-file") call nbd_set_uri_allow_local_file(3). Optional features This call will fail if libnbd was not compiled with libxml2; you can test whether this is the case with nbd_supports_uri(3). Support for URIs that require TLS will fail if libnbd was not compiled with gnutls; you can test whether this is the case with nbd_supports_tls(3). *) val connect_unix : t -> string -> unit (** connect to NBD server over a Unix domain socket Connect (synchronously) over the named Unix domain socket ("unixsocket") to an NBD server running on the same machine. This call returns when the connection has been made. *) val connect_vsock : t -> int32 -> int32 -> unit (** connect to NBD server over AF_VSOCK protocol Connect (synchronously) over the "AF_VSOCK" protocol from a virtual machine to an NBD server, usually running on the host. The "cid" and "port" parameters specify the server address. Usually "cid" should be 2 (to connect to the host), and "port" might be 10809 or another port number assigned to you by the host administrator. This call returns when the connection has been made. *) val connect_tcp : t -> string -> string -> unit (** connect to NBD server over a TCP port Connect (synchronously) to the NBD server listening on "hostname:port". The "port" may be a port name such as "nbd", or it may be a port number as a string such as "10809". This call returns when the connection has been made. *) val connect_socket : t -> Unix.file_descr -> unit (** connect directly to a connected socket Pass a connected socket (file descriptor) which libnbd will talk to. The program is responsible for connecting this somehow to an NBD server. Once the socket is passed to libnbd it is the responsibility of libnbd. Libnbd may read and write to it, set it to non-blocking, etc., and will finally close it when the handle is closed. The program must no longer use the socket. *) val connect_command : t -> string list -> unit (** connect to NBD server command Run the command as a subprocess and connect to it over stdin/stdout. This is for use with NBD servers which can behave like inetd clients, such as "nbdkit --single". Subprocess Libnbd will fork the "argv" command and pass the NBD socket to it using file descriptors 0 and 1 (stdin/stdout): ┌─────────┬─────────┠┌────────────────┠│ program │ libnbd │ │ NBD server │ │ │ │ │ (argv) │ │ │ socket â•â•â•â•â•â•â•â•â–¶ stdin/stdout │ └─────────┴─────────┘ └────────────────┘ When the NBD handle is closed the server subprocess is killed. *) val connect_systemd_socket_activation : t -> string list -> unit (** connect using systemd socket activation Run the command as a subprocess and connect to it using systemd socket activation. This is especially useful for running qemu-nbd(1) as a subprocess of libnbd, for example to use it to open qcow2 files. To run nbdkit as a subprocess it is usually better to use nbd_connect_command(3). Socket activation Libnbd will fork the "argv" command and pass an NBD socket to it using special "LISTEN_*" environment variables (as defined by the systemd socket activation protocol). ┌─────────┬─────────┠┌───────────────┠│ program │ libnbd │ │ qemu-nbd or │ │ │ │ │ other server │ │ │ socket â•â•â•â•â•â•â•â•â–¶ │ └─────────┴─────────┘ └───────────────┘ When the NBD handle is closed the server subprocess is killed. *) val is_read_only : t -> bool (** is the NBD export read-only? Returns true if the NBD export is read-only; writes and write-like operations will fail. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val can_flush : t -> bool (** does the server support the flush command? Returns true if the server supports the flush command (see nbd_flush(3), nbd_aio_flush(3)). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val can_fua : t -> bool (** does the server support the FUA flag? Returns true if the server supports the FUA flag on certain commands (see nbd_pwrite(3)). This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val is_rotational : t -> bool (** is the NBD disk rotational (like a disk)? Returns true if the disk exposed over NBD is rotational (like a traditional floppy or hard disk). Returns false if the disk has no penalty for random access (like an SSD or RAM disk). This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val can_trim : t -> bool (** does the server support the trim command? Returns true if the server supports the trim command (see nbd_trim(3), nbd_aio_trim(3)). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val can_zero : t -> bool (** does the server support the zero command? Returns true if the server supports the zero command (see nbd_zero(3), nbd_aio_zero(3)). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val can_fast_zero : t -> bool (** does the server support the fast zero flag? Returns true if the server supports the use of the "LIBNBD_CMD_FLAG_FAST_ZERO" flag to the zero command (see "nbd_zero", "nbd_aio_zero"). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val can_df : t -> bool (** does the server support the don't fragment flag to pread? Returns true if the server supports structured reads with an ability to request a non-fragmented read (see nbd_pread_structured(3), nbd_aio_pread_structured(3)). Returns false if the server either lacks structured reads or if it does not support a non-fragmented read request. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val can_multi_conn : t -> bool (** does the server support multi-conn? Returns true if the server supports multi-conn. Returns false if the server does not. It is not safe to open multiple handles connecting to the same server if you will write to the server and the server does not advertise multi-conn support. The safe way to check for this is to open one connection, check this flag is true, then open further connections as required. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val can_cache : t -> bool (** does the server support the cache command? Returns true if the server supports the cache command (see nbd_cache(3), nbd_aio_cache(3)). Returns false if the server does not. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val can_meta_context : t -> string -> bool (** does the server support a specific meta context? Returns true if the server supports the given meta context (see nbd_add_meta_context(3)). Returns false if the server does not. The single parameter is the name of the metadata context, for example "LIBNBD_CONTEXT_BASE_ALLOCATION". <libnbd.h> includes defined constants for well-known namespace contexts beginning with "LIBNBD_CONTEXT_", but you are free to pass in other contexts. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val get_protocol : t -> string (** return the NBD protocol variant Return the NBD protocol variant in use on the connection. At the moment this returns one of the strings "oldstyle", "newstyle" or "newstyle-fixed". Other strings might be returned in the future. Most modern NBD servers use "newstyle-fixed". This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val get_size : t -> int64 (** return the export size Returns the size in bytes of the NBD export. This call does not block, because it returns data that is saved in the handle from the NBD protocol handshake. *) val pread : ?flags:CMD_FLAG.t list -> t -> bytes -> int64 -> unit (** read from the NBD server Issue a read command to the NBD server for the range starting at "offset" and ending at "offset" + "count" - 1. NBD can only read all or nothing using this call. The call returns when the data has been read fully into "buf" or there is an error. See also nbd_pread_structured(3), if finer visibility is required into the server's replies, or if you want to use "LIBNBD_CMD_FLAG_DF". The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). *) val pread_structured : ?flags:CMD_FLAG.t list -> t -> bytes -> int64 -> (bytes -> int64 -> int -> int ref -> int) -> unit (** read from the NBD server Issue a read command to the NBD server for the range starting at "offset" and ending at "offset" + "count" - 1. The server's response may be subdivided into chunks which may arrive out of order before reassembly into the original buffer; the "chunk" callback is used for notification after each chunk arrives, and may perform additional sanity checking on the server's reply. The callback cannot call "nbd_*" APIs on the same handle since it holds the handle lock and will cause a deadlock. If the callback returns -1, and no earlier error has been detected, then the overall read command will fail with any non-zero value stored into the callback's "error" parameter (with a default of "EPROTO"); but any further chunks will still invoke the callback. The "chunk" function is called once per chunk of data received, with the "user_data" passed to this function. The "subbuf" and "count" parameters represent the subset of the original buffer which has just been populated by results from the server (in C, "subbuf" always points within the original "buf"; but this guarantee may not extend to other language bindings). The "offset" parameter represents the absolute offset at which "subbuf" begins within the image (note that this is not the relative offset of "subbuf" within the original buffer "buf"). Changes to "error" on output are ignored unless the callback fails. The input meaning of the "error" parameter is controlled by the "status" parameter, which is one of "LIBNBD_READ_DATA" = 1 "subbuf" was populated with "count" bytes of data. On input, "error" contains the errno value of any earlier detected error, or zero. "LIBNBD_READ_HOLE" = 2 "subbuf" represents a hole, and contains "count" NUL bytes. On input, "error" contains the errno value of any earlier detected error, or zero. "LIBNBD_READ_ERROR" = 3 "count" is 0, so "subbuf" is unusable. On input, "error" contains the errno value reported by the server as occurring while reading that "offset", regardless if any earlier error has been detected. Future NBD extensions may permit other values for "status", but those will not be returned to a client that has not opted in to requesting such extensions. If the server is non-compliant, it is possible for the "chunk" function to be called more times than you expect or with "count" 0 for "LIBNBD_READ_DATA" or "LIBNBD_READ_HOLE". It is also possible that the "chunk" function is not called at all (in particular, "LIBNBD_READ_ERROR" is used only when an error is associated with a particular offset, and not when the server reports a generic error), but you are guaranteed that the callback was called at least once if the overall read succeeds. Libnbd does not validate that the server obeyed the requirement that a read call must not have overlapping chunks and must not succeed without enough chunks to cover the entire request. The "flags" parameter may be 0 for no flags, or may contain "LIBNBD_CMD_FLAG_DF" meaning that the server should not reply with more than one fragment (if that is supported - some servers cannot do this, see nbd_can_df(3)). Libnbd does not validate that the server actually obeys the flag. *) val pwrite : ?flags:CMD_FLAG.t list -> t -> bytes -> int64 -> unit (** write to the NBD server Issue a write command to the NBD server, writing the data in "buf" to the range starting at "offset" and ending at "offset" + "count" - 1. NBD can only write all or nothing using this call. The call returns when the command has been acknowledged by the server, or there is an error. The "flags" parameter may be 0 for no flags, or may contain "LIBNBD_CMD_FLAG_FUA" meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see nbd_can_fua(3)). *) val shutdown : ?flags:CMD_FLAG.t list -> t -> unit (** disconnect from the NBD server Issue the disconnect command to the NBD server. This is a nice way to tell the server we are going away, but from the client's point of view has no advantage over abruptly closing the connection (see nbd_close(3)). This function works whether or not the handle is ready for transmission of commands, and as such does not take a "flags" parameter. If more fine-grained control is needed, see nbd_aio_disconnect(3). The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). *) val flush : ?flags:CMD_FLAG.t list -> t -> unit (** send flush command to the NBD server Issue the flush command to the NBD server. The function should return when all write commands which have completed have been committed to permanent storage on the server. Note this will return an error if nbd_can_flush(3) is false. The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). *) val trim : ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> unit (** send trim command to the NBD server Issue a trim command to the NBD server, which if supported by the server causes a hole to be punched in the backing store starting at "offset" and ending at "offset" + "count" - 1. The call returns when the command has been acknowledged by the server, or there is an error. The "flags" parameter may be 0 for no flags, or may contain "LIBNBD_CMD_FLAG_FUA" meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see nbd_can_fua(3)). *) val cache : ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> unit (** send cache (prefetch) command to the NBD server Issue the cache (prefetch) command to the NBD server, which if supported by the server causes data to be prefetched into faster storage by the server, speeding up a subsequent nbd_pread(3) call. The server can also silently ignore this command. Note this will return an error if nbd_can_cache(3) is false. The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). *) val zero : ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> unit (** send write zeroes command to the NBD server Issue a write zeroes command to the NBD server, which if supported by the server causes a zeroes to be written efficiently starting at "offset" and ending at "offset" + "count" - 1. The call returns when the command has been acknowledged by the server, or there is an error. The "flags" parameter may be 0 for no flags, or may contain "LIBNBD_CMD_FLAG_FUA" meaning that the server should not return until the data has been committed to permanent storage (if that is supported - some servers cannot do this, see nbd_can_fua(3)), "LIBNBD_CMD_FLAG_NO_HOLE" meaning that the server should favor writing actual allocated zeroes over punching a hole, and/or "LIBNBD_CMD_FLAG_FAST_ZERO" meaning that the server must fail quickly if writing zeroes is no faster than a normal write (if that is supported - some servers cannot do this, see nbd_can_fast_zero(3)). *) val block_status : ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> (string -> int64 -> int32 array -> int ref -> int) -> unit (** send block status command to the NBD server Issue the block status command to the NBD server. If supported by the server, this causes metadata context information about blocks beginning from the specified offset to be returned. The "count" parameter is a hint: the server may choose to return less status, or the final block may extend beyond the requested range. If multiple contexts are supported, the number of blocks and cumulative length of those blocks need not be identical between contexts. Depending on which metadata contexts were enabled before connecting (see nbd_add_meta_context(3)) and which are supported by the server (see nbd_can_meta_context(3)) this call returns information about extents by calling back to the "extent" function. The callback cannot call "nbd_*" APIs on the same handle since it holds the handle lock and will cause a deadlock. If the callback returns -1, and no earlier error has been detected, then the overall block status command will fail with any non-zero value stored into the callback's "error" parameter (with a default of "EPROTO"); but any further contexts will still invoke the callback. The "extent" function is called once per type of metadata available, with the "user_data" passed to this function. The "metacontext" parameter is a string such as "base:allocation". The "entries" array is an array of pairs of integers with the first entry in each pair being the length (in bytes) of the block and the second entry being a status/flags field which is specific to the metadata context. (The number of pairs passed to the function is "nr_entries/2".) The NBD protocol document in the section about "NBD_REPLY_TYPE_BLOCK_STATUS" describes the meaning of this array; for contexts known to libnbd, <libnbd.h> contains constants beginning with "LIBNBD_STATE_" that may help decipher the values. On entry to the callback, the "error" parameter contains the errno value of any previously detected error. It is possible for the extent function to be called more times than you expect (if the server is buggy), so always check the "metacontext" field to ensure you are receiving the data you expect. It is also possible that the extent function is not called at all, even for metadata contexts that you requested. This indicates either that the server doesn't support the context or for some other reason cannot return the data. The "flags" parameter may be 0 for no flags, or may contain "LIBNBD_CMD_FLAG_REQ_ONE" meaning that the server should return only one extent per metadata context where that extent does not exceed "count" bytes; however, libnbd does not validate that the server obeyed the flag. *) val poll : t -> int -> int (** poll the handle once This is a simple implementation of poll(2) which is used internally by synchronous API calls. On success, it returns 0 if the "timeout" (in milliseconds) occurs, or 1 if the poll completed and the state machine progressed. Set "timeout" to -1 to block indefinitely (but be careful that eventual action is actually expected - for example, if the connection is established but there are no commands in flight, using an infinite timeout will permanently block). This function is mainly useful as an example of how you might integrate libnbd with your own main loop, rather than being intended as something you would use. *) val aio_connect : t -> string -> unit (** connect to the NBD server Begin connecting to the NBD server. The "addr" and "addrlen" parameters specify the address of the socket to connect to. You can check if the connection is still connecting by calling nbd_aio_is_connecting(3), or if it has connected to the server and completed the NBD handshake by calling nbd_aio_is_ready(3), on the connection. *) val aio_connect_uri : t -> string -> unit (** connect to an NBD URI Begin connecting to the NBD URI "uri". Parameters behave as documented in nbd_connect_uri(3). You can check if the connection is still connecting by calling nbd_aio_is_connecting(3), or if it has connected to the server and completed the NBD handshake by calling nbd_aio_is_ready(3), on the connection. *) val aio_connect_unix : t -> string -> unit (** connect to the NBD server over a Unix domain socket Begin connecting to the NBD server over Unix domain socket ("unixsocket"). Parameters behave as documented in nbd_connect_unix(3). You can check if the connection is still connecting by calling nbd_aio_is_connecting(3), or if it has connected to the server and completed the NBD handshake by calling nbd_aio_is_ready(3), on the connection. *) val aio_connect_vsock : t -> int32 -> int32 -> unit (** connect to the NBD server over AF_VSOCK socket Begin connecting to the NBD server over the "AF_VSOCK" protocol to the server "cid:port". Parameters behave as documented in nbd_connect_vsock(3). You can check if the connection is still connecting by calling nbd_aio_is_connecting(3), or if it has connected to the server and completed the NBD handshake by calling nbd_aio_is_ready(3), on the connection. *) val aio_connect_tcp : t -> string -> string -> unit (** connect to the NBD server over a TCP port Begin connecting to the NBD server listening on "hostname:port". Parameters behave as documented in nbd_connect_tcp(3). You can check if the connection is still connecting by calling nbd_aio_is_connecting(3), or if it has connected to the server and completed the NBD handshake by calling nbd_aio_is_ready(3), on the connection. *) val aio_connect_socket : t -> Unix.file_descr -> unit (** connect directly to a connected socket Begin connecting to the connected socket "fd". Parameters behave as documented in nbd_connect_socket(3). You can check if the connection is still connecting by calling nbd_aio_is_connecting(3), or if it has connected to the server and completed the NBD handshake by calling nbd_aio_is_ready(3), on the connection. *) val aio_connect_command : t -> string list -> unit (** connect to the NBD server Run the command as a subprocess and begin connecting to it over stdin/stdout. Parameters behave as documented in nbd_connect_command(3). You can check if the connection is still connecting by calling nbd_aio_is_connecting(3), or if it has connected to the server and completed the NBD handshake by calling nbd_aio_is_ready(3), on the connection. *) val aio_connect_systemd_socket_activation : t -> string list -> unit (** connect using systemd socket activation Run the command as a subprocess and begin connecting to it using systemd socket activation. Parameters behave as documented in nbd_connect_systemd_socket_activation(3). You can check if the connection is still connecting by calling nbd_aio_is_connecting(3), or if it has connected to the server and completed the NBD handshake by calling nbd_aio_is_ready(3), on the connection. *) val aio_pread : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> Buffer.t -> int64 -> cookie (** read from the NBD server Issue a read command to the NBD server. To check if the command completed, call nbd_aio_command_completed(3). Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Note that you must ensure "buf" is valid until the command has completed. Other parameters behave as documented in nbd_pread(3). *) val aio_pread_structured : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> Buffer.t -> int64 -> (bytes -> int64 -> int -> int ref -> int) -> cookie (** read from the NBD server Issue a read command to the NBD server. To check if the command completed, call nbd_aio_command_completed(3). Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in nbd_pread_structured(3). *) val aio_pwrite : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> Buffer.t -> int64 -> cookie (** write to the NBD server Issue a write command to the NBD server. To check if the command completed, call nbd_aio_command_completed(3). Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Note that you must ensure "buf" is valid until the command has completed. Other parameters behave as documented in nbd_pwrite(3). *) val aio_disconnect : ?flags:CMD_FLAG.t list -> t -> unit (** disconnect from the NBD server Issue the disconnect command to the NBD server. This is not a normal command because NBD servers are not obliged to send a reply. Instead you should wait for nbd_aio_is_closed(3) to become true on the connection. Once this command is issued, you cannot issue any further commands. Although libnbd does not prevent you from issuing this command while still waiting on the replies to previous commands, the NBD protocol recommends that you wait until there are no other commands in flight (see nbd_aio_in_flight(3)), to give the server a better chance at a clean shutdown. The "flags" parameter must be 0 for now (it exists for future NBD protocol extensions). There is no direct synchronous counterpart; however, nbd_shutdown(3) will call this function if appropriate. *) val aio_flush : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> cookie (** send flush command to the NBD server Issue the flush command to the NBD server. To check if the command completed, call nbd_aio_command_completed(3). Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in nbd_flush(3). *) val aio_trim : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> cookie (** send trim command to the NBD server Issue a trim command to the NBD server. To check if the command completed, call nbd_aio_command_completed(3). Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in nbd_trim(3). *) val aio_cache : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> cookie (** send cache (prefetch) command to the NBD server Issue the cache (prefetch) command to the NBD server. To check if the command completed, call nbd_aio_command_completed(3). Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in nbd_cache(3). *) val aio_zero : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> cookie (** send write zeroes command to the NBD server Issue a write zeroes command to the NBD server. To check if the command completed, call nbd_aio_command_completed(3). Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in nbd_zero(3). *) val aio_block_status : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> (string -> int64 -> int32 array -> int ref -> int) -> cookie (** send block status command to the NBD server Send the block status command to the NBD server. To check if the command completed, call nbd_aio_command_completed(3). Or supply the optional "completion_callback" which will be invoked as described in "Completion callbacks" in libnbd(3). Other parameters behave as documented in nbd_block_status(3). *) val aio_get_fd : t -> Unix.file_descr (** return file descriptor associated with this connection Return the underlying file descriptor associated with this connection. You can use this to check if the file descriptor is ready for reading or writing and call nbd_aio_notify_read(3) or nbd_aio_notify_write(3). See also nbd_aio_get_direction(3). Do not do anything else with the file descriptor. *) val aio_get_direction : t -> int (** return the read or write direction Return the current direction of this connection, which means whether we are next expecting to read data from the server, write data to the server, or both. It returns 0 We are not expected to interact with the server file descriptor from the current state. It is not worth attempting to use poll(2); if the connection is not dead, then state machine progress must instead come from some other means such as nbd_aio_connect(3). "LIBNBD_AIO_DIRECTION_READ" = 1 We are expected next to read from the server. If using poll(2) you would set "events = POLLIN". If "revents" returns "POLLIN" or "POLLHUP" you would then call nbd_aio_notify_read(3). Note that once libnbd reaches nbd_aio_is_ready(3), this direction is returned even when there are no commands in flight (see nbd_aio_in_flight(3)). In a single-threaded use of libnbd, it is not worth polling until after issuing a command, as otherwise the server will never wake up the poll. In a multi-threaded scenario, you can have one thread begin a polling loop prior to any commands, but any other thread that issues a command will need a way to kick the polling thread out of poll in case issuing the command changes the needed polling direction. Possible ways to do this include polling for activity on a pipe-to-self, or using pthread_kill(3) to send a signal that is masked except during ppoll(2). "LIBNBD_AIO_DIRECTION_WRITE" = 2 We are expected next to write to the server. If using poll(2) you would set "events = POLLOUT". If "revents" returns "POLLOUT" you would then call nbd_aio_notify_write(3). "LIBNBD_AIO_DIRECTION_BOTH" = 3 We are expected next to either read or write to the server. If using poll(2) you would set "events = POLLIN|POLLOUT". If only one of "POLLIN" or "POLLOUT" is returned, then see above. However, if both are returned, it is better to call only nbd_aio_notify_read(3), as processing the server's reply may change the state of the connection and invalidate the need to write more commands. *) val aio_notify_read : t -> unit (** notify that the connection is readable Send notification to the state machine that the connection is readable. Typically this is called after your main loop has detected that the file descriptor associated with this connection is readable. *) val aio_notify_write : t -> unit (** notify that the connection is writable Send notification to the state machine that the connection is writable. Typically this is called after your main loop has detected that the file descriptor associated with this connection is writable. *) val aio_is_created : t -> bool (** check if the connection has just been created Return true if this connection has just been created. This is the state before the handle has started connecting to a server. In this state the handle can start to be connected by calling functions such as nbd_aio_connect(3). *) val aio_is_connecting : t -> bool (** check if the connection is connecting or handshaking Return true if this connection is connecting to the server or in the process of handshaking and negotiating options which happens before the handle becomes ready to issue commands (see nbd_aio_is_ready(3)). *) val aio_is_ready : t -> bool (** check if the connection is in the ready state Return true if this connection is connected to the NBD server, the handshake has completed, and the connection is idle or waiting for a reply. In this state the handle is ready to issue commands. *) val aio_is_processing : t -> bool (** check if the connection is processing a command Return true if this connection is connected to the NBD server, the handshake has completed, and the connection is processing commands (either writing out a request or reading a reply). Note the ready state (nbd_aio_is_ready(3)) is not included. In the ready state commands may be *in flight* (the *server* is processing them), but libnbd is not processing them. *) val aio_is_dead : t -> bool (** check if the connection is dead Return true if the connection has encountered a fatal error and is dead. In this state the handle may only be closed. There is no way to recover a handle from the dead state. *) val aio_is_closed : t -> bool (** check if the connection is closed Return true if the connection has closed. There is no way to reconnect a closed connection. Instead you must close the whole handle. *) val aio_command_completed : t -> int64 -> bool (** check if the command completed Return true if the command completed. If this function returns true then the command was successful and it has been retired. Return false if the command is still in flight. This can also fail with an error in case the command failed (in this case the command is also retired). A command is retired either via this command, or by using a completion callback which returns 1. The "cookie" parameter is the positive unique 64 bit cookie for the command, as returned by a call such as nbd_aio_pread(3). *) val aio_peek_command_completed : t -> int64 (** check if any command has completed Return the unique positive 64 bit cookie of the first non-retired but completed command, 0 if there are in-flight commands but none of them are awaiting retirement, or -1 on error including when there are no in-flight commands. Any cookie returned by this function must still be passed to nbd_aio_command_completed(3) to actually retire the command and learn whether the command was successful. *) val aio_in_flight : t -> int (** check how many aio commands are still in flight Return the number of in-flight aio commands that are still awaiting a response from the server before they can be retired. If this returns a non-zero value when requesting a disconnect from the server (see nbd_aio_disconnect(3) and nbd_shutdown(3)), libnbd does not try to wait for those commands to complete gracefully; if the server strands commands while shutting down, nbd_aio_command_completed(3) will report those commands as failed with a status of "ENOTCONN". *) val connection_state : t -> string (** return string describing the state of the connection Returns a descriptive string for the state of the connection. This can be used for debugging or troubleshooting, but you should not rely on the state of connections since it may change in future versions. *) val get_package_name : t -> string (** return the name of the library Returns the name of the library, always "libnbd" unless the library was modified with another name at compile time. *) val get_version : t -> string (** return the version of the library Return the version of libnbd. This is returned as a string in the form "major.minor.release" where each of major, minor and release is a small positive integer. For example: minor ↓ "1.0.3" ↑ ↑ major release major = 0 The major number was 0 for the early experimental versions of libnbd where we still had an unstable API. major = 1 The major number is 1 for the versions of libnbd with a long-term stable API and ABI. It is not anticipated that major will be any number other than 1. minor = 0, 2, ... (even) The minor number is even for stable releases. minor = 1, 3, ... (odd) The minor number is odd for development versions. Note that new APIs added in a development version remain experimental and subject to change in that branch until they appear in a stable release. release The release number is incremented for each release along a particular branch. *) val kill_subprocess : t -> int -> unit (** kill server running as a subprocess This call may be used to kill the server running as a subprocess that was previously created using nbd_connect_command(3). You do not need to use this call. It is only needed if the server does not exit when the socket is closed. The "signum" parameter is the optional signal number to send (see signal(7)). If "signum" is 0 then "SIGTERM" is sent. *) val supports_tls : t -> bool (** true if libnbd was compiled with support for TLS Returns true if libnbd was compiled with gnutls which is required to support TLS encryption, or false if not. *) val supports_uri : t -> bool (** true if libnbd was compiled with support for NBD URIs Returns true if libnbd was compiled with libxml2 which is required to support NBD URIs, or false if not. *) �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/NBD.ml���������������������������������������������������������������������������0000444�0001750�0001750�00000026551�13563236631�011736� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* NBD client library in userspace * WARNING: THIS FILE IS GENERATED FROM * generator/generator * ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST. * * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) exception Error of string * int exception Closed of string type cookie = int64 (* Give the exceptions names so that they can be raised from the C code. *) let () = Callback.register_exception "nbd_internal_ocaml_error" (Error ("", 0)); Callback.register_exception "nbd_internal_ocaml_closed" (Closed "") module TLS = struct type t = | DISABLE | ALLOW | REQUIRE end module CMD_FLAG = struct type t = | FUA | NO_HOLE | DF | REQ_ONE | FAST_ZERO end module HANDSHAKE_FLAG = struct type t = | FIXED_NEWSTYLE | NO_ZEROES end module ALLOW_TRANSPORT = struct type t = | TCP | UNIX | VSOCK end let aio_direction_read = 1_l let aio_direction_write = 2_l let aio_direction_both = 3_l let read_data = 1_l let read_hole = 2_l let read_error = 3_l let namespace_base = "base:" let context_base_allocation = "base:allocation" let state_hole = 1_l let state_zero = 2_l module Buffer = struct type t external alloc : int -> t = "nbd_internal_ocaml_buffer_alloc" external to_bytes : t -> bytes = "nbd_internal_ocaml_buffer_to_bytes" external of_bytes : bytes -> t = "nbd_internal_ocaml_buffer_of_bytes" external size : t -> int = "nbd_internal_ocaml_buffer_size" end type t external create : unit -> t = "nbd_internal_ocaml_nbd_create" external close : t -> unit = "nbd_internal_ocaml_nbd_close" external set_debug : t -> bool -> unit = "nbd_internal_ocaml_nbd_set_debug" external get_debug : t -> bool = "nbd_internal_ocaml_nbd_get_debug" external set_debug_callback : t -> (string -> string -> int) -> unit = "nbd_internal_ocaml_nbd_set_debug_callback" external clear_debug_callback : t -> unit = "nbd_internal_ocaml_nbd_clear_debug_callback" external set_handle_name : t -> string -> unit = "nbd_internal_ocaml_nbd_set_handle_name" external get_handle_name : t -> string = "nbd_internal_ocaml_nbd_get_handle_name" external set_export_name : t -> string -> unit = "nbd_internal_ocaml_nbd_set_export_name" external get_export_name : t -> string = "nbd_internal_ocaml_nbd_get_export_name" external set_tls : t -> TLS.t -> unit = "nbd_internal_ocaml_nbd_set_tls" external get_tls : t -> int = "nbd_internal_ocaml_nbd_get_tls" external get_tls_negotiated : t -> bool = "nbd_internal_ocaml_nbd_get_tls_negotiated" external set_tls_certificates : t -> string -> unit = "nbd_internal_ocaml_nbd_set_tls_certificates" external set_tls_verify_peer : t -> bool -> unit = "nbd_internal_ocaml_nbd_set_tls_verify_peer" external get_tls_verify_peer : t -> bool = "nbd_internal_ocaml_nbd_get_tls_verify_peer" external set_tls_username : t -> string -> unit = "nbd_internal_ocaml_nbd_set_tls_username" external get_tls_username : t -> string = "nbd_internal_ocaml_nbd_get_tls_username" external set_tls_psk_file : t -> string -> unit = "nbd_internal_ocaml_nbd_set_tls_psk_file" external set_request_structured_replies : t -> bool -> unit = "nbd_internal_ocaml_nbd_set_request_structured_replies" external get_request_structured_replies : t -> bool = "nbd_internal_ocaml_nbd_get_request_structured_replies" external get_structured_replies_negotiated : t -> bool = "nbd_internal_ocaml_nbd_get_structured_replies_negotiated" external set_handshake_flags : t -> HANDSHAKE_FLAG.t -> unit = "nbd_internal_ocaml_nbd_set_handshake_flags" external get_handshake_flags : t -> int = "nbd_internal_ocaml_nbd_get_handshake_flags" external add_meta_context : t -> string -> unit = "nbd_internal_ocaml_nbd_add_meta_context" external set_uri_allow_transports : t -> ALLOW_TRANSPORT.t -> unit = "nbd_internal_ocaml_nbd_set_uri_allow_transports" external set_uri_allow_tls : t -> TLS.t -> unit = "nbd_internal_ocaml_nbd_set_uri_allow_tls" external set_uri_allow_local_file : t -> bool -> unit = "nbd_internal_ocaml_nbd_set_uri_allow_local_file" external connect_uri : t -> string -> unit = "nbd_internal_ocaml_nbd_connect_uri" external connect_unix : t -> string -> unit = "nbd_internal_ocaml_nbd_connect_unix" external connect_vsock : t -> int32 -> int32 -> unit = "nbd_internal_ocaml_nbd_connect_vsock" external connect_tcp : t -> string -> string -> unit = "nbd_internal_ocaml_nbd_connect_tcp" external connect_socket : t -> Unix.file_descr -> unit = "nbd_internal_ocaml_nbd_connect_socket" external connect_command : t -> string list -> unit = "nbd_internal_ocaml_nbd_connect_command" external connect_systemd_socket_activation : t -> string list -> unit = "nbd_internal_ocaml_nbd_connect_systemd_socket_activation" external is_read_only : t -> bool = "nbd_internal_ocaml_nbd_is_read_only" external can_flush : t -> bool = "nbd_internal_ocaml_nbd_can_flush" external can_fua : t -> bool = "nbd_internal_ocaml_nbd_can_fua" external is_rotational : t -> bool = "nbd_internal_ocaml_nbd_is_rotational" external can_trim : t -> bool = "nbd_internal_ocaml_nbd_can_trim" external can_zero : t -> bool = "nbd_internal_ocaml_nbd_can_zero" external can_fast_zero : t -> bool = "nbd_internal_ocaml_nbd_can_fast_zero" external can_df : t -> bool = "nbd_internal_ocaml_nbd_can_df" external can_multi_conn : t -> bool = "nbd_internal_ocaml_nbd_can_multi_conn" external can_cache : t -> bool = "nbd_internal_ocaml_nbd_can_cache" external can_meta_context : t -> string -> bool = "nbd_internal_ocaml_nbd_can_meta_context" external get_protocol : t -> string = "nbd_internal_ocaml_nbd_get_protocol" external get_size : t -> int64 = "nbd_internal_ocaml_nbd_get_size" external pread : ?flags:CMD_FLAG.t list -> t -> bytes -> int64 -> unit = "nbd_internal_ocaml_nbd_pread" external pread_structured : ?flags:CMD_FLAG.t list -> t -> bytes -> int64 -> (bytes -> int64 -> int -> int ref -> int) -> unit = "nbd_internal_ocaml_nbd_pread_structured" external pwrite : ?flags:CMD_FLAG.t list -> t -> bytes -> int64 -> unit = "nbd_internal_ocaml_nbd_pwrite" external shutdown : ?flags:CMD_FLAG.t list -> t -> unit = "nbd_internal_ocaml_nbd_shutdown" external flush : ?flags:CMD_FLAG.t list -> t -> unit = "nbd_internal_ocaml_nbd_flush" external trim : ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> unit = "nbd_internal_ocaml_nbd_trim" external cache : ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> unit = "nbd_internal_ocaml_nbd_cache" external zero : ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> unit = "nbd_internal_ocaml_nbd_zero" external block_status : ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> (string -> int64 -> int32 array -> int ref -> int) -> unit = "nbd_internal_ocaml_nbd_block_status" external poll : t -> int -> int = "nbd_internal_ocaml_nbd_poll" external aio_connect : t -> string -> unit = "nbd_internal_ocaml_nbd_aio_connect" external aio_connect_uri : t -> string -> unit = "nbd_internal_ocaml_nbd_aio_connect_uri" external aio_connect_unix : t -> string -> unit = "nbd_internal_ocaml_nbd_aio_connect_unix" external aio_connect_vsock : t -> int32 -> int32 -> unit = "nbd_internal_ocaml_nbd_aio_connect_vsock" external aio_connect_tcp : t -> string -> string -> unit = "nbd_internal_ocaml_nbd_aio_connect_tcp" external aio_connect_socket : t -> Unix.file_descr -> unit = "nbd_internal_ocaml_nbd_aio_connect_socket" external aio_connect_command : t -> string list -> unit = "nbd_internal_ocaml_nbd_aio_connect_command" external aio_connect_systemd_socket_activation : t -> string list -> unit = "nbd_internal_ocaml_nbd_aio_connect_systemd_socket_activation" external aio_pread : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> Buffer.t -> int64 -> cookie = "nbd_internal_ocaml_nbd_aio_pread" external aio_pread_structured : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> Buffer.t -> int64 -> (bytes -> int64 -> int -> int ref -> int) -> cookie = "nbd_internal_ocaml_nbd_aio_pread_structured_byte" "nbd_internal_ocaml_nbd_aio_pread_structured" external aio_pwrite : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> Buffer.t -> int64 -> cookie = "nbd_internal_ocaml_nbd_aio_pwrite" external aio_disconnect : ?flags:CMD_FLAG.t list -> t -> unit = "nbd_internal_ocaml_nbd_aio_disconnect" external aio_flush : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> cookie = "nbd_internal_ocaml_nbd_aio_flush" external aio_trim : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> cookie = "nbd_internal_ocaml_nbd_aio_trim" external aio_cache : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> cookie = "nbd_internal_ocaml_nbd_aio_cache" external aio_zero : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> cookie = "nbd_internal_ocaml_nbd_aio_zero" external aio_block_status : ?completion:(int ref -> int) -> ?flags:CMD_FLAG.t list -> t -> int64 -> int64 -> (string -> int64 -> int32 array -> int ref -> int) -> cookie = "nbd_internal_ocaml_nbd_aio_block_status_byte" "nbd_internal_ocaml_nbd_aio_block_status" external aio_get_fd : t -> Unix.file_descr = "nbd_internal_ocaml_nbd_aio_get_fd" external aio_get_direction : t -> int = "nbd_internal_ocaml_nbd_aio_get_direction" external aio_notify_read : t -> unit = "nbd_internal_ocaml_nbd_aio_notify_read" external aio_notify_write : t -> unit = "nbd_internal_ocaml_nbd_aio_notify_write" external aio_is_created : t -> bool = "nbd_internal_ocaml_nbd_aio_is_created" external aio_is_connecting : t -> bool = "nbd_internal_ocaml_nbd_aio_is_connecting" external aio_is_ready : t -> bool = "nbd_internal_ocaml_nbd_aio_is_ready" external aio_is_processing : t -> bool = "nbd_internal_ocaml_nbd_aio_is_processing" external aio_is_dead : t -> bool = "nbd_internal_ocaml_nbd_aio_is_dead" external aio_is_closed : t -> bool = "nbd_internal_ocaml_nbd_aio_is_closed" external aio_command_completed : t -> int64 -> bool = "nbd_internal_ocaml_nbd_aio_command_completed" external aio_peek_command_completed : t -> int64 = "nbd_internal_ocaml_nbd_aio_peek_command_completed" external aio_in_flight : t -> int = "nbd_internal_ocaml_nbd_aio_in_flight" external connection_state : t -> string = "nbd_internal_ocaml_nbd_connection_state" external get_package_name : t -> string = "nbd_internal_ocaml_nbd_get_package_name" external get_version : t -> string = "nbd_internal_ocaml_nbd_get_version" external kill_subprocess : t -> int -> unit = "nbd_internal_ocaml_nbd_kill_subprocess" external supports_tls : t -> bool = "nbd_internal_ocaml_nbd_supports_tls" external supports_uri : t -> bool = "nbd_internal_ocaml_nbd_supports_uri" �������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/libnbd-ocaml.pod�����������������������������������������������������������������0000664�0001750�0001750�00000002607�13525221417�014022� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������=head1 NAME libnbd-ocaml - how to use libnbd from OCaml =head1 SYNOPSIS let nbd = NBD.create () in NBD.connect_uri nbd "nbd://localhost"; let size = NBD.get_size nbd in printf "%Ld\n" size =head1 DESCRIPTION This manual page documents how to use libnbd to access Network Block Device (NBD) servers from the OCaml programming language. The OCaml bindings work very similarly to the C bindings so you should start by reading L<libnbd(3)>.. =head1 HANDLES Create a libnbd handle of type C<NBD.t> by calling S<C<NBD.create ()>>. You can either close the handle explicitly by calling C<NBD.close> or it will be closed automatically when it is garbage collected. If you call any other method on a handle which you have explicitly closed then the API will throw an C<NBD.Closed> exception. =head1 ERRORS Libnbd errors are turned automatically into S<C<NBD.Error (str, errno)>> exceptions. This exception has two parameters. The first is a string which is the printable error message. The second is the raw C<errno>, if available (see L<nbd_get_errno(3)>). The raw C<errno> is not compatible with errors in the OCaml C<Unix> module unfortunately. =head1 EXAMPLES This directory contains examples written in OCaml: L<https://github.com/libguestfs/libnbd/tree/master/ocaml/examples> =head1 SEE ALSO L<libnbd(3)>. =head1 AUTHORS Richard W.M. Jones =head1 COPYRIGHT Copyright (C) 2019 Red Hat Inc. �������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/examples/������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�012700� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/examples/Makefile.am�������������������������������������������������������������0000664�0001750�0001750�00000003360�13525336442�014647� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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maintainer-clean-generic mostlyclean \ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ tags-am uninstall uninstall-am .PRECIOUS: Makefile $(generator_built): $(top_builddir)/generator/stamp-generator $(top_builddir)/generator/stamp-generator: \ $(top_srcdir)/generator/generator \ $(wildcard $(top_srcdir)/generator/states*.c) $(MAKE) -C $(top_builddir)/generator stamp-generator %.cmi: %.mli $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ %.cmo: %.ml $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ @HAVE_OCAMLOPT_TRUE@%.cmx: %.ml @HAVE_OCAMLOPT_TRUE@ $(OCAMLFIND) ocamlopt $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ $(top_builddir)/podwrapper.pl: $(top_srcdir)/podwrapper.pl.in $(MAKE) -C $(top_builddir) podwrapper.pl @HAVE_OCAML_TRUE@%.bc: %.cmo ../mlnbd.cma @HAVE_OCAML_TRUE@ LD_LIBRARY_PATH=../../lib/.libs $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -linkpkg mlnbd.cma $< -o $@ @HAVE_OCAMLOPT_TRUE@@HAVE_OCAML_TRUE@%.opt: %.cmx ../mlnbd.cmxa @HAVE_OCAMLOPT_TRUE@@HAVE_OCAML_TRUE@ LD_LIBRARY_PATH=../../lib/.libs $(OCAMLFIND) ocamlopt $(OCAMLFLAGS) -cclib -L$(top_builddir)/lib/.libs -I . $(OCAMLPACKAGES) -linkpkg mlnbd.cmxa $< -o $@ # Dependencies. #.depend: $(srcdir)/*.mli $(srcdir)/*.ml .depend: $(srcdir)/*.ml $(OCAMLFIND) ocamldep -I .. $^ > $@ -include .depend # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/examples/LICENSE-FOR-EXAMPLES����������������������������������������������������0000664�0001750�0001750�00000003451�13524776043�015465� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������The files in the ocaml/examples/ directory are licensed under this very permissive BSD license. This means that you can copy, use, adapt and modify them without any significant restrictions. You can also combine them with proprietary code or include them in code that is distributed under other open source licenses. ---------------------------------------------------------------------- libnbd examples Copyright (C) 2013-2019 Red Hat Inc. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Red Hat nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/examples/asynch_copy.ml����������������������������������������������������������0000664�0001750�0001750�00000006630�13525221417�015462� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������open Unix open Printf let (+^) = Int64.add let (-^) = Int64.sub let bs = 65536_L let max_reads_in_flight = 16 let dir_is_read dir = dir land (Int32.to_int NBD.aio_direction_read) <> 0 let dir_is_write dir = dir land (Int32.to_int NBD.aio_direction_write) <> 0 (* Copy between two libnbd handles using aynchronous I/O (AIO). *) let asynch_copy src dst = let size = NBD.get_size dst in (* This is our reading position in the source. *) let soff = ref 0_L in (* This callback is called when any pread from the source has * completed. (buf, size) contains the block of data. This * builds up a queue of write commands which are sent on the * next iteration of the loop. *) let writes = ref [] in let read_completed buf offset _ = (* Get ready to issue a write command. *) writes := (buf, offset) :: !writes; (* By returning 1 here we auto-retire the pread command. *) 1 in (* This callback is called when any pwrite to the destination * has completed. *) let write_completed buf _ = (* By returning 1 here we auto-retire the pwrite command. *) 1 in (* The main loop which runs until we have finished reading and * there are no more commands in flight. *) while !soff < size || NBD.aio_in_flight dst > 0 do (* If we're able to submit more reads from the source then do so now. *) if !soff < size && NBD.aio_in_flight src < max_reads_in_flight then ( let bs = min bs (size -^ !soff) in let buf = NBD.Buffer.alloc (Int64.to_int bs) in ignore (NBD.aio_pread src buf !soff ~completion:(read_completed buf !soff)); soff := !soff +^ bs ); (* If there are any write commands waiting to be issued to * the destination, send them now. *) List.iter ( fun (buf, offset) -> (* Note the size of the write is implicitly stored in buf. *) ignore (NBD.aio_pwrite dst buf offset ~completion:(write_completed buf)) ) !writes; writes := []; let sfd = NBD.aio_get_fd src and dfd = NBD.aio_get_fd dst and sdir = NBD.aio_get_direction src and ddir = NBD.aio_get_direction dst in let rfds = if dir_is_read sdir then [sfd] else [] in let rfds = if dir_is_read ddir then dfd :: rfds else rfds in let wfds = if dir_is_write sdir then [sfd] else [] in let wfds = if dir_is_write ddir then dfd :: wfds else wfds in let rfds, wfds, _ = select rfds wfds [] (-1.0) in (* These can change since we slept in the select, so we must * check them again. *) let sdir = NBD.aio_get_direction src and ddir = NBD.aio_get_direction dst in if List.mem sfd rfds && dir_is_read sdir then NBD.aio_notify_read src else if List.mem sfd wfds && dir_is_write sdir then NBD.aio_notify_write src else if List.mem dfd rfds && dir_is_read ddir then NBD.aio_notify_read dst else if List.mem dfd wfds && dir_is_write ddir then NBD.aio_notify_write dst done let () = let src = NBD.create () in NBD.set_handle_name src "src"; let dst = NBD.create () in NBD.set_handle_name dst "dst"; NBD.connect_command src ["nbdkit"; "-s"; "--exit-with-parent"; "-r"; "pattern"; "size=512M"]; NBD.connect_command dst ["nbdkit"; "-s"; "--exit-with-parent"; "memory"; "size=512M"]; asynch_copy src dst (* This is a good way to find memory leaks or corruption. *) let () = Gc.compact () ��������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/examples/extents.ml��������������������������������������������������������������0000664�0001750�0001750�00000002036�13524776043�014642� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������open Printf let () = let nbd = NBD.create () in NBD.add_meta_context nbd "base:allocation"; NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "memory"; "size=128K"]; (* Write some sectors. *) let data_sector = Bytes.make 512 'a' in let zero_sector = Bytes.make 512 '\000' in NBD.pwrite nbd data_sector 0_L; NBD.pwrite nbd zero_sector 32768_L; NBD.pwrite nbd data_sector 65536_L; (* Read the extents and print them. *) let size = NBD.get_size nbd in NBD.block_status nbd size 0_L ( fun meta _ entries err -> printf "err=%d\n" !err; if meta = "base:allocation" then ( printf "index\tlength\tflags\n"; for i = 0 to Array.length entries / 2 - 1 do let flags = match entries.(i*2+1) with | 0_l -> "data" | 1_l -> "hole" | 2_l -> "zero" | 3_l -> "hole+zero" | i -> sprintf "unknown (%ld)" i in printf "%d:\t%ld\t%s\n" i entries.(i*2) flags done ); 0 ) ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/���������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543655�012224� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/Makefile.am����������������������������������������������������������������0000664�0001750�0001750�00000006133�13542365252�014174� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk CLEANFILES += *.annot *.cmi *.cmo *.cmx *.o *.a *.so *.bc *.opt EXTRA_DIST = \ test_010_import.ml \ test_100_handle.ml \ test_200_connect_command.ml \ test_300_get_size.ml \ test_400_pread.ml \ test_405_pread_structured.ml \ test_410_pwrite.ml \ test_460_block_status.ml \ test_500_aio_pread.ml \ test_505_aio_pread_structured_callback.ml \ test_510_aio_pwrite.ml \ test_590_aio_copy.ml \ test_600_debug_callback.ml \ test_610_exception.ml \ $(NULL) if HAVE_OCAML if HAVE_NBDKIT tests_bc = \ test_010_import.bc \ test_100_handle.bc \ test_200_connect_command.bc \ test_300_get_size.bc \ test_400_pread.bc \ test_405_pread_structured.bc \ test_410_pwrite.bc \ test_460_block_status.bc \ test_500_aio_pread.bc \ test_505_aio_pread_structured_callback.bc \ test_510_aio_pwrite.bc \ test_590_aio_copy.bc \ test_600_debug_callback.bc \ test_610_exception.bc \ $(NULL) tests_opt = \ test_010_import.opt \ test_100_handle.opt \ test_200_connect_command.opt \ test_300_get_size.opt \ test_400_pread.opt \ test_405_pread_structured.opt \ test_410_pwrite.opt \ test_460_block_status.opt \ test_500_aio_pread.opt \ test_505_aio_pread_structured_callback.opt \ test_510_aio_pwrite.opt \ test_590_aio_copy.opt \ test_600_debug_callback.opt \ test_610_exception.opt \ $(NULL) OCAMLFLAGS = $(OCAML_FLAGS) $(OCAML_WARN_ERROR) -ccopt '$(CFLAGS)' OCAMLPACKAGES = \ -package unix \ -I $(srcdir)/.. -I $(builddir)/.. -I $(srcdir) -I $(builddir) check_SCRIPTS = $(tests_bc) if HAVE_OCAMLOPT check_SCRIPTS += $(tests_opt) endif %.bc: %.cmo ../mlnbd.cma LD_LIBRARY_PATH=../../lib/.libs \ $(OCAMLFIND) ocamlc \ $(OCAMLFLAGS) $(OCAMLPACKAGES) -linkpkg \ mlnbd.cma $< -o $@ if HAVE_OCAMLOPT %.opt: %.cmx ../mlnbd.cmxa LD_LIBRARY_PATH=../../lib/.libs \ $(OCAMLFIND) ocamlopt \ $(OCAMLFLAGS) $(OCAMLPACKAGES) \ -cclib -L$(top_builddir)/lib/.libs -linkpkg \ mlnbd.cmxa $< -o $@ endif TESTS_ENVIRONMENT = LIBNBD_DEBUG=1 OCAMLRUNPARAM=b LOG_COMPILER = $(top_builddir)/run TESTS = $(tests_bc) if HAVE_OCAMLOPT TESTS += $(tests_opt) endif endif HAVE_NBDKIT endif HAVE_OCAML check-valgrind: LIBNBD_VALGRIND=1 $(MAKE) check TESTS="$(tests_opt)" # Dependencies. #.depend: $(srcdir)/*.mli $(srcdir)/*.ml .depend: $(srcdir)/*.ml $(OCAMLFIND) ocamldep -I .. $^ > $@ -include .depend �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/Makefile.in����������������������������������������������������������������0000664�0001750�0001750�00000132234�13616543374�014214� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# Makefile.in generated by automake 1.16.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2018 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # subdir-rules.mk is included only in subdirectories. # common-rules.mk is included in every Makefile.am. # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # common-rules.mk is included in every Makefile.am. # subdir-rules.mk is included only in subdirectories. 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��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_010_import.ml���������������������������������������������������������0000664�0001750�0001750�00000001537�13524776043�015432� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) (* nothing - just checks we can link with libnbd *) �����������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_100_handle.ml���������������������������������������������������������0000664�0001750�0001750�00000001566�13524776043�015355� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) let () = let nbd = NBD.create () in ignore nbd let () = Gc.compact () ������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_200_connect_command.ml������������������������������������������������0000664�0001750�0001750�00000001716�13525017240�017233� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) let () = let nbd = NBD.create () in NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "-v"; "null"] let () = Gc.compact () ��������������������������������������������������libnbd-1.2.2/ocaml/tests/test_300_get_size.ml�������������������������������������������������������0000664�0001750�0001750�00000002153�13524776043�015726� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) open Printf let expected = 1048576_L let () = let nbd = NBD.create () in NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "-v"; "null"; sprintf "size=%Ld" expected]; let actual = NBD.get_size nbd in assert (actual = expected) let () = Gc.compact () ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_400_pread.ml����������������������������������������������������������0000664�0001750�0001750�00000003173�13524776043�015214� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) open Printf (* NB: OCaml 4.08 has endian functions in the Bytes module which * would make this loop much simpler. *) let expected = let b = Bytes.create 512 in for i = 0 to 512/8-1 do let i64 = ref (Int64.of_int (i*8)) in for j = 0 to 7 do let c = Int64.shift_right_logical !i64 56 in let c = Int64.to_int c in let c = Char.chr c in Bytes.unsafe_set b (i*8+j) c; i64 := Int64.shift_left !i64 8 done done; b let () = let nbd = NBD.create () in NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "-v"; "pattern"; "size=512"]; let buf = Bytes.create 512 in NBD.pread nbd buf 0_L; printf "buf = %S\n" (Bytes.to_string buf); printf "expected = %S\n" (Bytes.to_string expected); assert (buf = expected) let () = Gc.compact () �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_405_pread_structured.ml�����������������������������������������������0000664�0001750�0001750�00000004117�13525046255�017500� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) open Printf (* NB: OCaml 4.08 has endian functions in the Bytes module which * would make this loop much simpler. *) let expected = let b = Bytes.create 512 in for i = 0 to 512/8-1 do let i64 = ref (Int64.of_int (i*8)) in for j = 0 to 7 do let c = Int64.shift_right_logical !i64 56 in let c = Int64.to_int c in let c = Char.chr c in Bytes.unsafe_set b (i*8+j) c; i64 := Int64.shift_left !i64 8 done done; b let f user_data buf2 offset s err = assert (!err = 0); err := 100; if user_data <> 42 then invalid_arg "this should be turned into NBD.Error"; assert (buf2 = expected); assert (offset = 0_L); assert (s = Int32.to_int NBD.read_data); 0 let () = let nbd = NBD.create () in NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "-v"; "pattern"; "size=512"]; let buf = Bytes.create 512 in NBD.pread_structured nbd buf 0_L (f 42); assert (buf = expected); let flags = let open NBD.CMD_FLAG in [DF] in NBD.pread_structured nbd buf 0_L (f 42) ~flags; assert (buf = expected); try NBD.pread_structured nbd buf 0_L (f 43) ~flags; assert false with NBD.Error (_, errno) -> printf "errno = %d\n%!" errno; assert (errno = 100) let () = Gc.compact () �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_410_pwrite.ml���������������������������������������������������������0000664�0001750�0001750�00000003147�13524776043�015435� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) open Unix let () = let buf1 = Bytes.make 512 '\000' in Bytes.set buf1 10 '\001'; Bytes.set buf1 510 '\x55'; Bytes.set buf1 511 '\xAA'; let datafile, chan = Filename.open_temp_file ~mode:[Open_binary] "410" ".data" in let fd = descr_of_out_channel chan in ftruncate fd 512; close_out chan; let nbd = NBD.create () in NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "-v"; "file"; datafile]; let flags = let open NBD.CMD_FLAG in [FUA] in NBD.pwrite nbd buf1 0_L ~flags; let buf2 = Bytes.create 512 in NBD.pread nbd buf2 0_L; assert (buf1 = buf2); let fd = openfile datafile [O_RDONLY] 0 in let content = Bytes.create 512 in assert (512 = read fd content 0 512); close fd; assert (buf1 = content); unlink datafile let () = Gc.compact () �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_460_block_status.ml���������������������������������������������������0000664�0001750�0001750�00000003600�13524776043�016617� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) open Printf let script = try let srcdir = Sys.getenv "srcdir" in sprintf "%s/../../tests/meta-base-allocation.sh" srcdir with Not_found -> failwith "error: srcdir is not defined" let entries = ref [||] let f user_data metacontext offset e err = assert (user_data = 42); assert (!err = 0); if metacontext = "base:allocation" then entries := e; 0 let () = let nbd = NBD.create () in NBD.add_meta_context nbd "base:allocation"; NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "-v"; "sh"; script]; NBD.block_status nbd 65536_L 0_L (f 42); assert (!entries = [| 8192_l; 0_l; 8192_l; 1_l; 16384_l; 3_l; 16384_l; 2_l; 16384_l; 0_l |]); NBD.block_status nbd 1024_L 32256_L (f 42); assert (!entries = [| 512_l; 3_l; 16384_l; 2_l |]); let flags = let open NBD.CMD_FLAG in [REQ_ONE] in NBD.block_status nbd 1024_L 32256_L (f 42) ~flags; assert (!entries = [| 512_l; 3_l |]) let () = Gc.compact () ��������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_500_aio_pread.ml������������������������������������������������������0000664�0001750�0001750�00000003224�13524776043�016042� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) (* NB: OCaml 4.08 has endian functions in the Bytes module which * would make this loop much simpler. *) let expected = let b = Bytes.create 512 in for i = 0 to 512/8-1 do let i64 = ref (Int64.of_int (i*8)) in for j = 0 to 7 do let c = Int64.shift_right_logical !i64 56 in let c = Int64.to_int c in let c = Char.chr c in Bytes.unsafe_set b (i*8+j) c; i64 := Int64.shift_left !i64 8 done done; b let () = let nbd = NBD.create () in NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "-v"; "pattern"; "size=512"]; let buf = NBD.Buffer.alloc 512 in let cookie = NBD.aio_pread nbd buf 0_L in while not (NBD.aio_command_completed nbd cookie) do ignore (NBD.poll nbd (-1)) done; let buf = NBD.Buffer.to_bytes buf in assert (buf = expected) let () = Gc.compact () ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_505_aio_pread_structured_callback.ml����������������������������������0000664�0001750�0001750�00000006713�13525062733�022150� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) open Printf (* NB: OCaml 4.08 has endian functions in the Bytes module which * would make this loop much simpler. *) let expected = let b = Bytes.create 512 in for i = 0 to 512/8-1 do let i64 = ref (Int64.of_int (i*8)) in for j = 0 to 7 do let c = Int64.shift_right_logical !i64 56 in let c = Int64.to_int c in let c = Char.chr c in Bytes.unsafe_set b (i*8+j) c; i64 := Int64.shift_left !i64 8 done done; b let chunk user_data buf2 offset s err = assert (!err = 0); err := 100; if user_data <> 42 then invalid_arg "this should be turned into NBD.Error"; assert (buf2 = expected); assert (offset = 0_L); assert (s = Int32.to_int NBD.read_data); 0 let callback user_data err = if fst user_data = 42 then assert (!err = 0) else assert (!err = 100); err := 101; if snd user_data <> 42 then invalid_arg "this should be turned into NBD.Error"; 0 let () = let nbd = NBD.create () in NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "-v"; "pattern"; "size=512"]; (* First try: succeed in both callbacks *) let buf = NBD.Buffer.alloc 512 in let cookie = NBD.aio_pread_structured nbd buf 0_L (chunk 42) ~completion:(callback (42, 42)) in while not (NBD.aio_command_completed nbd cookie) do ignore (NBD.poll nbd (-1)) done; let buf = NBD.Buffer.to_bytes buf in assert (buf = expected); (* Second try: fail only during callback *) let buf = NBD.Buffer.alloc 512 in let cookie = NBD.aio_pread_structured nbd buf 0_L (chunk 42) ~completion:(callback (42, 43)) in try while not (NBD.aio_command_completed nbd cookie) do ignore (NBD.poll nbd (-1)) done; assert false with NBD.Error (_, errno) -> printf "errno = %d\n%!" errno; assert (errno = 101); (* Third try: fail during both *) let buf = NBD.Buffer.alloc 512 in let cookie = NBD.aio_pread_structured nbd buf 0_L (chunk 44) ~completion:(callback (43, 43)) in try while not (NBD.aio_command_completed nbd cookie) do ignore (NBD.poll nbd (-1)) done; assert false with NBD.Error (_, errno) -> printf "errno = %d\n%!" errno; assert (errno = 101); (* Fourth try: fail only during chunk *) let buf = NBD.Buffer.alloc 512 in let cookie = NBD.aio_pread_structured nbd buf 0_L (chunk 43) ~completion:(callback (43, 42)) in try while not (NBD.aio_command_completed nbd cookie) do ignore (NBD.poll nbd (-1)) done; assert false with NBD.Error (_, errno) -> printf "errno = %d\n%!" errno; assert (errno = 100) let () = Gc.compact () �����������������������������������������������������libnbd-1.2.2/ocaml/tests/test_510_aio_pwrite.ml�����������������������������������������������������0000664�0001750�0001750�00000003603�13524776043�016263� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) open Unix let () = let buf = Bytes.make 512 '\000' in Bytes.set buf 10 '\001'; Bytes.set buf 510 '\x55'; Bytes.set buf 511 '\xAA'; let datafile, chan = Filename.open_temp_file ~mode:[Open_binary] "510" ".data" in let fd = descr_of_out_channel chan in ftruncate fd 512; close_out chan; let nbd = NBD.create () in NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "-v"; "file"; datafile]; let buf1 = NBD.Buffer.of_bytes buf in let flags = let open NBD.CMD_FLAG in [FUA] in let cookie = NBD.aio_pwrite nbd buf1 0_L ~flags in while not (NBD.aio_command_completed nbd cookie) do ignore (NBD.poll nbd (-1)) done; let buf2 = NBD.Buffer.alloc 512 in let cookie = NBD.aio_pread nbd buf2 0_L in while not (NBD.aio_command_completed nbd cookie) do ignore (NBD.poll nbd (-1)) done; assert (buf = NBD.Buffer.to_bytes buf2); let fd = openfile datafile [O_RDONLY] 0 in let content = Bytes.create 512 in assert (512 = read fd content 0 512); close fd; assert (buf = content); unlink datafile let () = Gc.compact () �����������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_590_aio_copy.ml�������������������������������������������������������0000664�0001750�0001750�00000010675�13525221417�015731� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) open Unix open Printf let (+^) = Int64.add let (-^) = Int64.sub let disk_size = 512 * 1024 * 1024 let bs = 65536_L let max_reads_in_flight = 16 let bytes_read = ref 0 let bytes_written = ref 0 let dir_is_read dir = dir land (Int32.to_int NBD.aio_direction_read) <> 0 let dir_is_write dir = dir land (Int32.to_int NBD.aio_direction_write) <> 0 (* Copy between two libnbd handles using aynchronous I/O (AIO). *) let asynch_copy src dst = let size = NBD.get_size dst in (* This is our reading position in the source. *) let soff = ref 0_L in (* This callback is called when any pread from the source has * completed. (buf, size) contains the block of data. This * builds up a queue of write commands which are sent on the * next iteration of the loop. *) let writes = ref [] in let read_completed buf offset _ = bytes_read := !bytes_read + NBD.Buffer.size buf; (* Get ready to issue a write command. *) writes := (buf, offset) :: !writes; (* By returning 1 here we auto-retire the pread command. *) 1 in (* This callback is called when any pwrite to the destination * has completed. *) let write_completed buf _ = bytes_written := !bytes_written + NBD.Buffer.size buf; (* By returning 1 here we auto-retire the pwrite command. *) 1 in (* The main loop which runs until we have finished reading and * there are no more commands in flight. *) while !soff < size || NBD.aio_in_flight dst > 0 do (* If we're able to submit more reads from the source then do so now. *) if !soff < size && NBD.aio_in_flight src < max_reads_in_flight then ( let bs = min bs (size -^ !soff) in let buf = NBD.Buffer.alloc (Int64.to_int bs) in ignore (NBD.aio_pread src buf !soff ~completion:(read_completed buf !soff)); soff := !soff +^ bs ); (* If there are any write commands waiting to be issued to * the destination, send them now. *) List.iter ( fun (buf, offset) -> (* Note the size of the write is implicitly stored in buf. *) ignore (NBD.aio_pwrite dst buf offset ~completion:(write_completed buf)) ) !writes; writes := []; let sfd = NBD.aio_get_fd src and dfd = NBD.aio_get_fd dst and sdir = NBD.aio_get_direction src and ddir = NBD.aio_get_direction dst in let rfds = if dir_is_read sdir then [sfd] else [] in let rfds = if dir_is_read ddir then dfd :: rfds else rfds in let wfds = if dir_is_write sdir then [sfd] else [] in let wfds = if dir_is_write ddir then dfd :: wfds else wfds in let rfds, wfds, _ = select rfds wfds [] (-1.0) in (* These can change since we slept in the select, so we must * check them again. *) let sdir = NBD.aio_get_direction src and ddir = NBD.aio_get_direction dst in if List.mem sfd rfds && dir_is_read sdir then NBD.aio_notify_read src else if List.mem sfd wfds && dir_is_write sdir then NBD.aio_notify_write src else if List.mem dfd rfds && dir_is_read ddir then NBD.aio_notify_read dst else if List.mem dfd wfds && dir_is_write ddir then NBD.aio_notify_write dst done let () = let src = NBD.create () in NBD.set_handle_name src "src"; let dst = NBD.create () in NBD.set_handle_name dst "dst"; NBD.connect_command src ["nbdkit"; "-s"; "--exit-with-parent"; "-r"; "pattern"; sprintf "size=%d" disk_size]; NBD.connect_command dst ["nbdkit"; "-s"; "--exit-with-parent"; "memory"; sprintf "size=%d" disk_size]; asynch_copy src dst let () = assert (!bytes_read = disk_size); assert (!bytes_written = disk_size) let () = Gc.compact () �������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_600_debug_callback.ml�������������������������������������������������0000664�0001750�0001750�00000002247�13524776043�017026� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) let messages = ref [] let f id context msg = assert (id = 42); messages := !messages @ [msg]; 0 let () = let nbd = NBD.create () in NBD.set_debug_callback nbd (f 42); NBD.connect_command nbd ["nbdkit"; "-s"; "--exit-with-parent"; "null"]; NBD.shutdown nbd; print_endline "<<<"; List.iter print_endline !messages; print_endline ">>>" let () = Gc.compact () ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/ocaml/tests/test_610_exception.ml������������������������������������������������������0000664�0001750�0001750�00000002313�13524776043�016115� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������(* libnbd OCaml test case * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *) open Printf let () = let nbd = NBD.create () in try (* This will always throw an exception because the handle is not * connected. *) NBD.pread nbd (Bytes.create 512) 0_L with NBD.Error (errstr, errno) -> printf "string = %s\n" errstr; printf "errno = %d\n" errno; Gc.compact (); exit 0 ;; (* If we reach here then we didn't catch the exception above. *) exit 1 ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/interop/�������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543656�011450� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/interop/Makefile.am��������������������������������������������������������������������0000664�0001750�0001750�00000020533�13546661321�013417� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk EXTRA_DIST = \ dirty-bitmap.sh \ structured-read.sh \ $(NULL) TESTS_ENVIRONMENT = LIBNBD_DEBUG=1 LOG_COMPILER = $(top_builddir)/run check_PROGRAMS = TESTS = if HAVE_NBD_SERVER check_PROGRAMS += interop-nbd-server TESTS += interop-nbd-server interop_nbd_server_SOURCES = interop.c interop_nbd_server_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(NBD_SERVER)\" \ -DSERVER_PARAMS='"-d", "-C", "/dev/null", "0", tmpfile' \ -DEXPORT_NAME='""' interop_nbd_server_CFLAGS = $(WARNINGS_CFLAGS) interop_nbd_server_LDADD = $(top_builddir)/lib/libnbd.la endif HAVE_NBD_SERVER if HAVE_QEMU_NBD check_PROGRAMS += \ interop-qemu-nbd \ dirty-bitmap \ socket-activation-qemu-nbd \ structured-read \ $(NULL) TESTS += \ interop-qemu-nbd \ dirty-bitmap.sh \ socket-activation-qemu-nbd \ structured-read.sh \ $(NULL) # tls tests assume the pre-existence of files created in ../tests/Makefile.am, # so we can only run them under the same conditions used there # XXX Make the tls file creation independent of HAVE_NBDKIT if HAVE_NBDKIT if HAVE_GNUTLS if HAVE_CERTTOOL check_PROGRAMS += \ interop-qemu-nbd-tls-certs \ $(NULL) TESTS += \ interop-qemu-nbd-tls-certs \ $(NULL) endif if HAVE_PSKTOOL check_PROGRAMS += \ interop-qemu-nbd-tls-psk \ $(NULL) TESTS += \ interop-qemu-nbd-tls-psk \ $(NULL) endif endif endif interop_qemu_nbd_SOURCES = interop.c interop_qemu_nbd_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSOCKET_ACTIVATION=1 \ -DSERVER=\"$(QEMU_NBD)\" \ -DSERVER_PARAMS='"-f", "raw", "-x", "/", tmpfile' \ -DEXPORT_NAME='"/"' \ $(NULL) interop_qemu_nbd_CFLAGS = $(WARNINGS_CFLAGS) interop_qemu_nbd_LDADD = $(top_builddir)/lib/libnbd.la # qemu-nbd requires absolute path to dir interop_qemu_nbd_tls_certs_SOURCES = interop.c interop_qemu_nbd_tls_certs_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSOCKET_ACTIVATION=1 \ -DSERVER=\"$(QEMU_NBD)\" \ -DSERVER_PARAMS='"--object", "tls-creds-x509,id=tls0,endpoint=server,dir=$(abs_top_builddir)/tests/pki", "--tls-creds", "tls0", "-f", "raw", "-x", "/", tmpfile' \ -DEXPORT_NAME='"/"' \ -DCERTS=1 \ -DTLS_MODE=LIBNBD_TLS_REQUIRE \ $(NULL) interop_qemu_nbd_tls_certs_CFLAGS = $(WARNINGS_CFLAGS) interop_qemu_nbd_tls_certs_LDADD = $(top_builddir)/lib/libnbd.la # qemu-nbd requires absolute path to dir interop_qemu_nbd_tls_psk_SOURCES = interop.c interop_qemu_nbd_tls_psk_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSOCKET_ACTIVATION=1 \ -DSERVER=\"$(QEMU_NBD)\" \ -DSERVER_PARAMS='"--object", "tls-creds-psk,id=tls0,endpoint=server,dir=$(abs_top_builddir)/tests", "--tls-creds", "tls0", "-f", "raw", "-x", "/", tmpfile' \ -DEXPORT_NAME='"/"' \ -DPSK=1 \ -DTLS_MODE=LIBNBD_TLS_REQUIRE \ $(NULL) interop_qemu_nbd_tls_psk_CFLAGS = $(WARNINGS_CFLAGS) interop_qemu_nbd_tls_psk_LDADD = $(top_builddir)/lib/libnbd.la dirty_bitmap_SOURCES = dirty-bitmap.c dirty_bitmap_CPPFLAGS = -I$(top_srcdir)/include dirty_bitmap_CFLAGS = $(WARNINGS_CFLAGS) dirty_bitmap_LDADD = $(top_builddir)/lib/libnbd.la socket_activation_qemu_nbd_SOURCES = socket-activation.c socket_activation_qemu_nbd_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(QEMU_NBD)\" \ -DSERVER_PARAMS='"-f", "raw", "-x", "", tmpfile' \ $(NULL) socket_activation_qemu_nbd_CFLAGS = $(WARNINGS_CFLAGS) socket_activation_qemu_nbd_LDADD = $(top_builddir)/lib/libnbd.la structured_read_SOURCES = structured-read.c structured_read_CPPFLAGS = -I$(top_srcdir)/include structured_read_CFLAGS = $(WARNINGS_CFLAGS) structured_read_LDADD = $(top_builddir)/lib/libnbd.la endif HAVE_QEMU_NBD if HAVE_NBDKIT check_PROGRAMS += \ interop-nbdkit \ socket-activation-nbdkit \ $(NULL) TESTS += \ interop-nbdkit \ socket-activation-nbdkit \ $(NULL) # See above comment about files in ../tests/Makefile.am if HAVE_GNUTLS if HAVE_CERTTOOL check_PROGRAMS += \ interop-nbdkit-tls-certs \ interop-nbdkit-tls-certs-allow-enabled \ interop-nbdkit-tls-certs-allow-fallback \ $(NULL) TESTS += \ interop-nbdkit-tls-certs \ interop-nbdkit-tls-certs-allow-enabled \ interop-nbdkit-tls-certs-allow-fallback \ $(NULL) endif if HAVE_PSKTOOL check_PROGRAMS += \ interop-nbdkit-tls-psk \ interop-nbdkit-tls-psk-allow-enabled \ interop-nbdkit-tls-psk-allow-fallback \ $(NULL) TESTS += \ interop-nbdkit-tls-psk \ interop-nbdkit-tls-psk-allow-enabled \ interop-nbdkit-tls-psk-allow-fallback \ $(NULL) endif endif interop_nbdkit_SOURCES = interop.c interop_nbdkit_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(NBDKIT)\" \ -DSERVER_PARAMS='"-s", "--exit-with-parent", "file", tmpfile' \ $(NULL) interop_nbdkit_CFLAGS = $(WARNINGS_CFLAGS) interop_nbdkit_LDADD = $(top_builddir)/lib/libnbd.la interop_nbdkit_tls_certs_SOURCES = interop.c interop_nbdkit_tls_certs_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(NBDKIT)\" \ -DSERVER_PARAMS='"--tls=require", "--tls-certificates=../tests/pki", "-s", "--exit-with-parent", "file", tmpfile' \ -DCERTS=1 \ -DTLS_MODE=LIBNBD_TLS_REQUIRE \ $(NULL) interop_nbdkit_tls_certs_CFLAGS = $(WARNINGS_CFLAGS) interop_nbdkit_tls_certs_LDADD = $(top_builddir)/lib/libnbd.la interop_nbdkit_tls_certs_allow_enabled_SOURCES = interop.c interop_nbdkit_tls_certs_allow_enabled_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(NBDKIT)\" \ -DSERVER_PARAMS='"--tls=require", "--tls-certificates=../tests/pki", "-s", "--exit-with-parent", "file", tmpfile' \ -DCERTS=1 \ -DTLS_MODE=LIBNBD_TLS_ALLOW \ $(NULL) interop_nbdkit_tls_certs_allow_enabled_CFLAGS = $(WARNINGS_CFLAGS) interop_nbdkit_tls_certs_allow_enabled_LDADD = $(top_builddir)/lib/libnbd.la interop_nbdkit_tls_certs_allow_fallback_SOURCES = interop.c interop_nbdkit_tls_certs_allow_fallback_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(NBDKIT)\" \ -DSERVER_PARAMS='"--tls=off", "-s", "--exit-with-parent", "file", tmpfile' \ -DCERTS=1 \ -DTLS_MODE=LIBNBD_TLS_ALLOW \ -DTLS_FALLBACK=1 \ $(NULL) interop_nbdkit_tls_certs_allow_fallback_CFLAGS = $(WARNINGS_CFLAGS) interop_nbdkit_tls_certs_allow_fallback_LDADD = $(top_builddir)/lib/libnbd.la interop_nbdkit_tls_psk_SOURCES = interop.c interop_nbdkit_tls_psk_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(NBDKIT)\" \ -DSERVER_PARAMS='"--tls=require", "--tls-psk=../tests/keys.psk", "-s", "--exit-with-parent", "file", tmpfile' \ -DPSK=1 \ -DTLS_MODE=LIBNBD_TLS_REQUIRE \ $(NULL) interop_nbdkit_tls_psk_CFLAGS = $(WARNINGS_CFLAGS) interop_nbdkit_tls_psk_LDADD = $(top_builddir)/lib/libnbd.la interop_nbdkit_tls_psk_allow_enabled_SOURCES = interop.c interop_nbdkit_tls_psk_allow_enabled_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(NBDKIT)\" \ -DSERVER_PARAMS='"--tls=require", "--tls-psk=../tests/keys.psk", "-s", "--exit-with-parent", "file", tmpfile' \ -DPSK=1 \ -DTLS_MODE=LIBNBD_TLS_ALLOW \ $(NULL) interop_nbdkit_tls_psk_allow_enabled_CFLAGS = $(WARNINGS_CFLAGS) interop_nbdkit_tls_psk_allow_enabled_LDADD = $(top_builddir)/lib/libnbd.la interop_nbdkit_tls_psk_allow_fallback_SOURCES = interop.c interop_nbdkit_tls_psk_allow_fallback_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(NBDKIT)\" \ -DSERVER_PARAMS='"--tls=off", "-s", "--exit-with-parent", "file", tmpfile' \ -DPSK=1 \ -DTLS_MODE=LIBNBD_TLS_ALLOW \ -DTLS_FALLBACK=1 \ $(NULL) interop_nbdkit_tls_psk_allow_fallback_CFLAGS = $(WARNINGS_CFLAGS) interop_nbdkit_tls_psk_allow_fallback_LDADD = $(top_builddir)/lib/libnbd.la socket_activation_nbdkit_SOURCES = socket-activation.c socket_activation_nbdkit_CPPFLAGS = \ -I$(top_srcdir)/include \ -DSERVER=\"$(NBDKIT)\" \ -DSERVER_PARAMS='"file", tmpfile' \ $(NULL) socket_activation_nbdkit_CFLAGS = $(WARNINGS_CFLAGS) socket_activation_nbdkit_LDADD = $(top_builddir)/lib/libnbd.la endif HAVE_NBDKIT check-valgrind: LIBNBD_VALGRIND=1 $(MAKE) check ���������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/interop/Makefile.in��������������������������������������������������������������������0000664�0001750�0001750�00000324665�13616543374�013452� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# Makefile.in generated by automake 1.16.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2018 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # subdir-rules.mk is included only in subdirectories. # common-rules.mk is included in every Makefile.am. # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # common-rules.mk is included in every Makefile.am. # subdir-rules.mk is included only in subdirectories. 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./$(DEPDIR)/interop_qemu_nbd_tls_certs-interop.Po -rm -f ./$(DEPDIR)/interop_qemu_nbd_tls_psk-interop.Po -rm -f ./$(DEPDIR)/socket_activation_nbdkit-socket-activation.Po -rm -f ./$(DEPDIR)/socket_activation_qemu_nbd-socket-activation.Po -rm -f ./$(DEPDIR)/structured_read-structured-read.Po -rm -f Makefile distclean-am: clean-am distclean-compile distclean-generic \ distclean-tags dvi: dvi-am dvi-am: html: html-am html-am: info: info-am info-am: install-data-am: install-dvi: install-dvi-am install-dvi-am: install-exec-am: install-html: install-html-am install-html-am: install-info: install-info-am install-info-am: install-man: install-pdf: install-pdf-am install-pdf-am: install-ps: install-ps-am install-ps-am: installcheck-am: maintainer-clean: maintainer-clean-am -rm -f ./$(DEPDIR)/dirty_bitmap-dirty-bitmap.Po -rm -f ./$(DEPDIR)/interop_nbd_server-interop.Po -rm -f ./$(DEPDIR)/interop_nbdkit-interop.Po -rm -f ./$(DEPDIR)/interop_nbdkit_tls_certs-interop.Po -rm -f ./$(DEPDIR)/interop_nbdkit_tls_certs_allow_enabled-interop.Po -rm -f ./$(DEPDIR)/interop_nbdkit_tls_certs_allow_fallback-interop.Po -rm -f ./$(DEPDIR)/interop_nbdkit_tls_psk-interop.Po -rm -f ./$(DEPDIR)/interop_nbdkit_tls_psk_allow_enabled-interop.Po -rm -f ./$(DEPDIR)/interop_nbdkit_tls_psk_allow_fallback-interop.Po -rm -f ./$(DEPDIR)/interop_qemu_nbd-interop.Po -rm -f ./$(DEPDIR)/interop_qemu_nbd_tls_certs-interop.Po -rm -f ./$(DEPDIR)/interop_qemu_nbd_tls_psk-interop.Po -rm -f ./$(DEPDIR)/socket_activation_nbdkit-socket-activation.Po -rm -f ./$(DEPDIR)/socket_activation_qemu_nbd-socket-activation.Po -rm -f ./$(DEPDIR)/structured_read-structured-read.Po -rm -f Makefile maintainer-clean-am: distclean-am maintainer-clean-generic mostlyclean: mostlyclean-am mostlyclean-am: mostlyclean-compile mostlyclean-generic \ mostlyclean-libtool pdf: pdf-am pdf-am: ps: ps-am ps-am: uninstall-am: .MAKE: check-am install-am install-strip .PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \ check-am clean clean-checkPROGRAMS clean-generic clean-libtool \ cscopelist-am ctags ctags-am distclean distclean-compile \ distclean-generic distclean-libtool distclean-tags distdir dvi \ dvi-am html html-am info info-am install install-am \ install-data install-data-am install-dvi install-dvi-am \ install-exec install-exec-am install-html install-html-am \ install-info install-info-am install-man install-pdf \ install-pdf-am install-ps install-ps-am install-strip \ installcheck installcheck-am installdirs maintainer-clean \ maintainer-clean-generic mostlyclean mostlyclean-compile \ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ recheck tags tags-am uninstall uninstall-am .PRECIOUS: Makefile $(generator_built): $(top_builddir)/generator/stamp-generator $(top_builddir)/generator/stamp-generator: \ $(top_srcdir)/generator/generator \ $(wildcard $(top_srcdir)/generator/states*.c) $(MAKE) -C $(top_builddir)/generator stamp-generator %.cmi: %.mli $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ %.cmo: %.ml $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ @HAVE_OCAMLOPT_TRUE@%.cmx: %.ml @HAVE_OCAMLOPT_TRUE@ $(OCAMLFIND) ocamlopt $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ $(top_builddir)/podwrapper.pl: $(top_srcdir)/podwrapper.pl.in $(MAKE) -C $(top_builddir) podwrapper.pl check-valgrind: LIBNBD_VALGRIND=1 $(MAKE) check # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: ���������������������������������������������������������������������������libnbd-1.2.2/interop/dirty-bitmap.c�����������������������������������������������������������������0000664�0001750�0001750�00000013400�13546661321�014127� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test reading qemu dirty bitmap. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <assert.h> #include <stdbool.h> #include <errno.h> #include <libnbd.h> static const char *bitmap; struct data { bool req_one; /* input: true if req_one was passed to request */ int count; /* input: count of expected remaining calls */ bool fail; /* input: true to return failure */ bool seen_base; /* output: true if base:allocation encountered */ bool seen_dirty; /* output: true if qemu:dirty-bitmap encountered */ }; static int cb (void *opaque, const char *metacontext, uint64_t offset, uint32_t *entries, size_t len, int *error) { struct data *data = opaque; /* libnbd does not actually verify that a server is fully compliant * to the spec; the asserts marked [qemu-nbd] are thus dependent on * the fact that qemu-nbd is compliant. */ assert (offset == 0); assert (!*error || (data->fail && data->count == 1 && *error == EPROTO)); assert (data->count-- > 0); /* [qemu-nbd] */ if (strcmp (metacontext, LIBNBD_CONTEXT_BASE_ALLOCATION) == 0) { assert (!data->seen_base); /* [qemu-nbd] */ data->seen_base = true; assert (len == (data->req_one ? 2 : 8)); /* [qemu-nbd] */ /* Data block offset 0 size 128k */ assert (entries[0] == 131072); assert (entries[1] == 0); if (!data->req_one) { /* hole|zero offset 128k size 384k */ assert (entries[2] == 393216); assert (entries[3] == (LIBNBD_STATE_HOLE| LIBNBD_STATE_ZERO)); /* allocated zero offset 512k size 64k */ assert (entries[4] == 65536); assert (entries[5] == LIBNBD_STATE_ZERO); /* hole|zero offset 576k size 448k */ assert (entries[6] == 458752); assert (entries[7] == (LIBNBD_STATE_HOLE| LIBNBD_STATE_ZERO)); } } else if (strcmp (metacontext, bitmap) == 0) { assert (!data->seen_dirty); /* [qemu-nbd] */ data->seen_dirty = true; assert (len == (data->req_one ? 2 : 10)); /* [qemu-nbd] */ assert (entries[0] == 65536); assert (entries[1] == 0); if (!data->req_one) { /* dirty block offset 64K size 64K */ assert (entries[2] == 65536); assert (entries[3] == 1); assert (entries[4] == 393216); assert (entries[5] == 0); /* dirty block offset 512K size 64K */ assert (entries[6] == 65536); assert (entries[7] == 1); assert (entries[8] == 458752); assert (entries[9] == 0); } } else { fprintf (stderr, "unexpected context %s\n", metacontext); exit (EXIT_FAILURE); } if (data->fail) { /* Something NBD servers can't send */ *error = data->count == 1 ? EPROTO : ECONNREFUSED; return -1; } return 0; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; int64_t exportsize; struct data data; char c; if (argc < 3) { fprintf (stderr, "%s bitmap qemu-nbd [args ...]\n", argv[0]); exit (EXIT_FAILURE); } bitmap = argv[1]; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_add_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION); nbd_add_meta_context (nbd, bitmap); if (nbd_connect_systemd_socket_activation (nbd, &argv[2]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } exportsize = nbd_get_size (nbd); if (exportsize == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } data = (struct data) { .count = 2, }; if (nbd_block_status (nbd, exportsize, 0, (nbd_extent_callback) { .callback = cb, .user_data = &data }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (data.seen_base && data.seen_dirty); data = (struct data) { .req_one = true, .count = 2, }; if (nbd_block_status (nbd, exportsize, 0, (nbd_extent_callback) { .callback = cb, .user_data = &data }, LIBNBD_CMD_FLAG_REQ_ONE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (data.seen_base && data.seen_dirty); /* Trigger a failed callback, to prove connection stays up. */ data = (struct data) { .count = 2, .fail = true, }; if (nbd_block_status (nbd, exportsize, 0, (nbd_extent_callback) { .callback = cb, .user_data = &data }, 0) != -1) { fprintf (stderr, "unexpected block status success\n"); exit (EXIT_FAILURE); } assert (nbd_get_errno () == EPROTO && nbd_aio_is_ready (nbd)); assert (data.seen_base && data.seen_dirty); if (nbd_pread (nbd, &c, 1, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/interop/interop.c����������������������������������������������������������������������0000664�0001750�0001750�00000010660�13552713634�013211� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test interop with other servers. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <unistd.h> #include <fcntl.h> #include <time.h> #include <signal.h> #include <errno.h> #include <sys/types.h> #include <libnbd.h> #define SIZE (1024*1024) #if CERTS || PSK #define TLS 1 #ifndef TLS_MODE #error "TLS_MODE must be defined when using CERTS || PSK" #endif #endif int main (int argc, char *argv[]) { struct nbd_handle *nbd; char tmpfile[] = "/tmp/nbdXXXXXX"; char *args[] = { SERVER, SERVER_PARAMS, NULL }; int fd; int64_t actual_size; char buf[512]; int r = -1; /* Create a large sparse temporary file. */ fd = mkstemp (tmpfile); if (fd == -1 || ftruncate (fd, SIZE) == -1 || close (fd) == -1) { perror (tmpfile); goto out; } nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } #ifdef EXPORT_NAME if (nbd_set_export_name (nbd, EXPORT_NAME) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } #endif #if TLS if (nbd_supports_tls (nbd) != 1) { fprintf (stderr, "skip: compiled without TLS support\n"); exit (77); } if (nbd_set_tls (nbd, TLS_MODE) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_set_tls_username (nbd, "alice") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #endif #if CERTS if (nbd_set_tls_certificates (nbd, "../tests/pki") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #elif PSK if (nbd_set_tls_psk_file (nbd, "../tests/keys.psk") == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } #endif /* Start the server. */ #if SOCKET_ACTIVATION #define NBD_CONNECT nbd_connect_systemd_socket_activation #else #define NBD_CONNECT nbd_connect_command #endif if (NBD_CONNECT (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } #if TLS if (TLS_MODE == LIBNBD_TLS_REQUIRE) { if (nbd_get_tls_negotiated (nbd) != 1) { fprintf (stderr, "%s: TLS required, but not negotiated on the connection\n", argv[0]); goto out; } } else if (TLS_MODE == LIBNBD_TLS_ALLOW) { #if TLS_FALLBACK if (nbd_get_tls_negotiated (nbd) != 0) { fprintf (stderr, "%s: TLS disabled, but connection didn't fall back to plaintext\n", argv[0]); goto out; } #else // !TLS_FALLBACK if (nbd_get_tls_negotiated (nbd) != 1) { fprintf (stderr, "%s: TLS allowed, but not negotiated on the connection\n", argv[0]); goto out; } #endif } #endif actual_size = nbd_get_size (nbd); if (actual_size == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } if (actual_size != SIZE) { fprintf (stderr, "%s: actual size %" PRIi64 " <> expected size %d", argv[0], actual_size, SIZE); goto out; } if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } /* XXX In future test more operations here. */ #if !TLS /* XXX qemu doesn't shut down the connection nicely (using * gnutls_bye) and because of this the following call will fail * with: * * nbd_shutdown: gnutls_record_recv: The TLS connection was * non-properly terminated. */ if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } #endif nbd_close (nbd); r = 0; out: unlink (tmpfile); exit (r == 0 ? EXIT_SUCCESS : EXIT_FAILURE); } ��������������������������������������������������������������������������������libnbd-1.2.2/interop/socket-activation.c������������������������������������������������������������0000664�0001750�0001750�00000004430�13546661321�015154� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test interop with nbdkit or qemu-nbd, and systemd socket activation. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <inttypes.h> #include <unistd.h> #include <libnbd.h> #define SIZE 1048576 int main (int argc, char *argv[]) { struct nbd_handle *nbd; char tmpfile[] = "/tmp/nbdXXXXXX"; int fd; int64_t actual_size; char buf[512]; int r = -1; /* Create a large sparse temporary file. */ fd = mkstemp (tmpfile); if (fd == -1 || ftruncate (fd, SIZE) == -1 || close (fd) == -1) { perror (tmpfile); goto out; } nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } char *args[] = { SERVER, SERVER_PARAMS, NULL }; if (nbd_connect_systemd_socket_activation (nbd, args) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } actual_size = nbd_get_size (nbd); if (actual_size == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } if (actual_size != SIZE) { fprintf (stderr, "%s: actual size %" PRIi64 " <> expected size %d", argv[0], actual_size, SIZE); goto out; } if (nbd_pread (nbd, buf, sizeof buf, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); goto out; } nbd_close (nbd); r = 0; out: unlink (tmpfile); exit (r == 0 ? EXIT_SUCCESS : EXIT_FAILURE); } ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/interop/structured-read.c��������������������������������������������������������������0000664�0001750�0001750�00000013307�13546661321�014645� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* Test structured reply read callback. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <assert.h> #include <stdbool.h> #include <errno.h> #include <libnbd.h> /* Depends on structured-read.sh setting things up so that qemu-nbd * exposes an image with a 512-byte hole at offset 2048 followed by a * 512-byte data section containing all '1' bytes at offset 2560 * (non-zero offsets to test that everything is calculated correctly). */ static char rbuf[1024]; struct data { bool df; /* input: true if DF flag was passed to request */ int count; /* input: count of expected remaining calls */ bool fail; /* input: true to return failure */ bool seen_hole; /* output: true if hole encountered */ bool seen_data; /* output: true if data encountered */ }; static int read_cb (void *opaque, const void *bufv, size_t count, uint64_t offset, unsigned status, int *error) { struct data *data = opaque; const char *buf = bufv; /* The NBD spec allows chunks to be reordered; we are relying on the * fact that qemu-nbd does not do so. */ assert (!*error || (data->fail && data->count == 1 && *error == EPROTO)); assert (data->count-- > 0); switch (status) { case LIBNBD_READ_DATA: if (data->df) { assert (buf == rbuf); assert (count == 1024); assert (offset == 2048); assert (buf[0] == 0 && memcmp (buf, buf + 1, 511) == 0); assert (buf[512] == 1 && memcmp (buf + 512, buf + 513, 511) == 0); } else { assert (buf == rbuf + 512); assert (count == 512); assert (offset == 2048 + 512); assert (buf[0] == 1 && memcmp (buf, buf + 1, 511) == 0); } assert (!data->seen_data); data->seen_data = true; break; case LIBNBD_READ_HOLE: assert (!data->df); /* Relies on qemu-nbd's behavior */ assert (buf == rbuf); assert (count == 512); assert (offset == 2048); assert (buf[0] == 0 && memcmp (buf, buf + 1, 511) == 0); assert (!data->seen_hole); data->seen_hole = true; break; case LIBNBD_READ_ERROR: /* For now, qemu-nbd cannot provoke this status. */ default: assert (false); } if (data->fail) { /* Something NBD servers can't send */ *error = data->count == 1 ? EPROTO : ECONNREFUSED; return -1; } return 0; } int main (int argc, char *argv[]) { struct nbd_handle *nbd; int64_t exportsize; struct data data; char c; if (argc < 2) { fprintf (stderr, "%s qemu-nbd [args ...]\n", argv[0]); exit (EXIT_FAILURE); } nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_connect_systemd_socket_activation (nbd, &argv[1]) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } exportsize = nbd_get_size (nbd); if (exportsize == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (exportsize != 3072) { fprintf (stderr, "unexpected file size\n"); exit (EXIT_FAILURE); } if (nbd_can_df (nbd) != 1) { fprintf (stderr, "skipping test: qemu too old to use structured reads\n"); exit (77); } memset (rbuf, 2, sizeof rbuf); data = (struct data) { .count = 2, }; if (nbd_pread_structured (nbd, rbuf, sizeof rbuf, 2048, (nbd_chunk_callback) { .callback = read_cb, .user_data = &data }, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (data.seen_data && data.seen_hole); /* Repeat with DF flag. */ memset (rbuf, 2, sizeof rbuf); data = (struct data) { .df = true, .count = 1, }; if (nbd_pread_structured (nbd, rbuf, sizeof rbuf, 2048, (nbd_chunk_callback) { .callback = read_cb, .user_data = &data }, LIBNBD_CMD_FLAG_DF) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } assert (data.seen_data && !data.seen_hole); /* Trigger a failed callback, to prove connection stays up. With * reads, all chunks trigger a callback even after failure, but the * first errno sticks. */ memset (rbuf, 2, sizeof rbuf); data = (struct data) { .count = 2, .fail = true, }; if (nbd_pread_structured (nbd, rbuf, sizeof rbuf, 2048, (nbd_chunk_callback) { .callback = read_cb, .user_data = &data }, 0) != -1) { fprintf (stderr, "unexpected pread callback success\n"); exit (EXIT_FAILURE); } assert (nbd_get_errno () == EPROTO && nbd_aio_is_ready (nbd)); assert (data.seen_data && data.seen_hole); if (nbd_pread (nbd, &c, 1, 0, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } if (nbd_shutdown (nbd, 0) == -1) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } nbd_close (nbd); exit (EXIT_SUCCESS); } �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/interop/dirty-bitmap.sh����������������������������������������������������������������0000775�0001750�0001750�00000003622�13546661321�014327� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test reading qemu dirty-bitmap. source ../tests/functions.sh set -e set -x requires qemu-img --version requires qemu-io --version requires qemu-nbd --version requires qemu-kvm --version # This test uses the qemu-nbd -B option. if ! qemu-nbd --help | grep -sq -- -B; then echo "$0: skipping because qemu-nbd does not support the -B option" exit 77 fi files="dirty-bitmap.qcow2" rm -f $files cleanup_fn rm -f $files # Create file with intentionally different written areas vs. dirty areas qemu-img create -f qcow2 dirty-bitmap.qcow2 1M qemu-io -f qcow2 -c 'w 0 64k' dirty-bitmap.qcow2 cat <<'EOF' | qemu-kvm -nodefaults -nographic -qmp stdio {'execute':'qmp_capabilities'} {'execute':'blockdev-add','arguments':{'node-name':'n','driver':'qcow2','file':{'driver':'file','filename':'dirty-bitmap.qcow2'}}} {'execute':'block-dirty-bitmap-add','arguments':{'node':'n','name':'bitmap0','persistent':true}} {'execute':'quit'} EOF qemu-io -f qcow2 -c 'w 64k 64k' -c 'w -z 512k 64k' dirty-bitmap.qcow2 # Run the test. $VG ./dirty-bitmap qemu:dirty-bitmap:bitmap0 \ qemu-nbd -f qcow2 -B bitmap0 dirty-bitmap.qcow2 ��������������������������������������������������������������������������������������������������������������libnbd-1.2.2/interop/structured-read.sh�������������������������������������������������������������0000775�0001750�0001750�00000002563�13546661321�015042� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������#!/usr/bin/env bash # nbd client library in userspace # Copyright (C) 2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # Test structured read callbacks. source ../tests/functions.sh set -e set -x requires qemu-img --version requires qemu-io --version requires qemu-nbd --version files="structured-read.qcow2" rm -f $files cleanup_fn rm -f $files # Create file with cluster size 512 and contents all 1 except for single # 512-byte hole at offset 2048 qemu-img create -f qcow2 -o cluster_size=512,compat=v3 structured-read.qcow2 3k qemu-io -d unmap -f qcow2 -c 'w -P 1 0 3k' -c 'w -zu 2k 512' \ structured-read.qcow2 # Run the test. $VG ./structured-read qemu-nbd -f qcow2 structured-read.qcow2 ���������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuzzing/�������������������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543656�011464� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuzzing/testcase_dir/������������������������������������������������������������������0000775�0001750�0001750�00000000000�13616543656�014135� 5����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuzzing/testcase_dir/newstyle����������������������������������������������������������0000664�0001750�0001750�00000000020�13546661321�015632� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������NBDMAGICIHAVEOPT����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuzzing/testcase_dir/newstyle-commands�������������������������������������������������0000664�0001750�0001750�00000001266�13546661321�017446� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������NBDMAGICIHAVEOPT��è‰Ue©�����������è‰Ue©��������� ���������í�è‰Ue©����������fŽ3ï���������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������gDf˜�����������gDf˜�����������gDf˜�����������gDf˜�����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuzzing/testcase_dir/oldstyle����������������������������������������������������������0000664�0001750�0001750�00000000230�13546661321�015622� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������NBDMAGIC��B†S���������� m����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuzzing/Makefile.am��������������������������������������������������������������������0000664�0001750�0001750�00000002735�13562557674�013454� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA include $(top_srcdir)/subdir-rules.mk EXTRA_DIST = \ README \ testcase_dir/newstyle \ testcase_dir/newstyle-commands \ testcase_dir/oldstyle \ $(NULL) noinst_PROGRAMS = libnbd-fuzz-wrapper if ENABLE_LIBFUZZER noinst_PROGRAMS += libnbd-libfuzzer-test endif libnbd_fuzz_wrapper_SOURCES = libnbd-fuzz-wrapper.c libnbd_fuzz_wrapper_CPPFLAGS = -I$(top_srcdir)/include libnbd_fuzz_wrapper_CFLAGS = $(WARNINGS_CFLAGS) libnbd_fuzz_wrapper_LDADD = $(top_builddir)/lib/libnbd.la libnbd_libfuzzer_test_SOURCES = libnbd-libfuzzer-test.c libnbd_libfuzzer_test_CPPFLAGS = -I$(top_srcdir)/include libnbd_libfuzzer_test_CFLAGS = $(WARNINGS_CFLAGS) libnbd_libfuzzer_test_LDADD = $(top_builddir)/lib/libnbd.la �����������������������������������libnbd-1.2.2/fuzzing/Makefile.in��������������������������������������������������������������������0000664�0001750�0001750�00000072424�13616543374�013457� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������# Makefile.in generated by automake 1.16.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2018 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA # subdir-rules.mk is included only in subdirectories. # common-rules.mk is included in every Makefile.am. # nbd client library in userspace # Copyright (C) 2013-2019 Red Hat Inc. # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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stamp-generator %.cmi: %.mli $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ %.cmo: %.ml $(OCAMLFIND) ocamlc $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ @HAVE_OCAMLOPT_TRUE@%.cmx: %.ml @HAVE_OCAMLOPT_TRUE@ $(OCAMLFIND) ocamlopt $(OCAMLFLAGS) $(OCAMLPACKAGES) -c $< -o $@ $(top_builddir)/podwrapper.pl: $(top_srcdir)/podwrapper.pl.in $(MAKE) -C $(top_builddir) podwrapper.pl # Tell versions [3.59,3.63) of GNU make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuzzing/README�������������������������������������������������������������������������0000664�0001750�0001750�00000005674�13562557674�012305� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������To report security bugs, see ‘SECURITY’ in the top source directory. Fuzzing libnbd using the American Fuzzy Lop (afl) fuzzer ======================================================== We can fuzz libnbd using the wrapper in this directory. You will need to recompile libnbd with afl instrumentation: ./configure CC=/usr/bin/afl-gcc CXX=/usr/bin/afl-g++ \ --disable-shared --disable-ocaml --disable-python make clean make The fuzzing/testcase_dir directory contains some initial testcases that afl can use. Run multiple copies of afl-fuzz. Usually you should run 1 master (-M) and as many slaves (-S) as you can. Master: mkdir -p fuzzing/sync_dir afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -M fuzz01 \ ./fuzzing/libnbd-fuzz-wrapper @@ Slaves: # replace fuzzNN with fuzz02, fuzz03, etc. afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -S fuzzNN \ ./fuzzing/libnbd-fuzz-wrapper @@ Test Coverage ------------- To find out if the fuzzing is covering all of the code, I used afl-cov (https://github.com/mrash/afl-cov). Usage is rather complex, so consult the README of that project, but in brief: (1) Create a second copy of the libnbd source, and compile it with profiling: ./configure CFLAGS="-O2 -g -pg -fprofile-arcs -ftest-coverage" \ --disable-shared --disable-ocaml --disable-python make clean make (2) Assuming ../libnbd-afl is the libnbd source compiled with afl, and the current directory is libnbd compiled with profiling, then run the command below. You can run this even while afl-fuzz is running. afl-cov -d ../libnbd-afl/fuzzing/sync_dir \ --code-dir . \ --coverage-cmd "fuzzing/libnbd-fuzz-wrapper AFL_FILE" This will create an HTML test coverage report in ../libnbd-afl/fuzzing/sync_dir/cov/web/ Fuzzing libnbd using Clang + libFuzzer ====================================== Recompile libnbd with libFuzzer enabled and build the libFuzzer test binary: ./configure \ CC=clang \ CFLAGS="-g -O1" \ --enable-libfuzzer \ --disable-shared --disable-ocaml --disable-python make clean make CFLAGS="-g -O1 -fsanitize=fuzzer,address" -C lib make CFLAGS="-g -O1 -fsanitize=fuzzer,address" \ -C fuzzing libnbd-libfuzzer-test (The awkward additional CFLAGS on the make command line are necessary because ./configure attempts to test that the compiler works, but this test fails when -fsanitize=fuzzer is used as that option adds an extra main() definition.) ",address" enables the Clang Address Sanitizer, and can be omitted for faster fuzzing. You can then run the fuzzer program directly on the input corpus: ./fuzzing/libnbd-libfuzzer-test fuzzing/testcase_dir New test inputs are written to fuzzing/testcase_dir and will be used on subsequent runs. If this is undesirable then delete fuzzing/testcase_dir/[0-f]* before the run. There are various extra command line options supported by libFuzzer. For more details see: https://llvm.org/docs/LibFuzzer.html ��������������������������������������������������������������������libnbd-1.2.2/fuzzing/libnbd-fuzz-wrapper.c����������������������������������������������������������0000664�0001750�0001750�00000011614�13562557674�015464� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* This is a wrapper allowing libnbd to be tested using common fuzzers * such as afl. It takes the fuzzer test case as a filename on the * command line. This is fed to the libnbd socket. Any output to the * socket from libnbd is sent to /dev/null. This is basically the * same way we fuzz nbdkit, but in reverse (see nbdkit.git/fuzzing). */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <fcntl.h> #include <unistd.h> #include <poll.h> #include <errno.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/wait.h> #include <libnbd.h> static void client (int s); static void server (int fd, int s); int main (int argc, char *argv[]) { int fd; pid_t pid; int sv[2], r, status; if (argc != 2) { fprintf (stderr, "libnbd-fuzz-wrapper testcase\n"); exit (EXIT_FAILURE); } /* Open the test case before we fork so we know the file exists. */ fd = open (argv[1], O_RDONLY); if (fd == -1) { perror (argv[1]); exit (EXIT_FAILURE); } /* Create a connected socket. */ if (socketpair (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, sv) == -1) { perror ("socketpair"); exit (EXIT_FAILURE); } /* Fork: The parent will be the libnbd process (client). The child * will be the phony NBD server listening on the socket. */ pid = fork (); if (pid == -1) { perror ("fork"); exit (EXIT_FAILURE); } if (pid > 0) { /* Parent: libnbd client. */ close (sv[1]); close (fd); client (sv[0]); close (sv[0]); r = wait (&status); if (r == -1) { perror ("wait"); exit (EXIT_FAILURE); } if (!WIFEXITED (status) || WEXITSTATUS (status) != 0) exit (EXIT_FAILURE); else exit (EXIT_SUCCESS); } /* Child: phony NBD server. */ close (sv[0]); server (fd, sv[1]); close (sv[1]); _exit (EXIT_SUCCESS); } static void client (int sock) { struct nbd_handle *nbd; char buf[512]; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Note we ignore errors in these calls because we are only * interested in whether the process crashes. */ /* This tests the handshake phase. */ nbd_connect_socket (nbd, sock); nbd_pread (nbd, buf, sizeof buf, 0, 0); nbd_pwrite (nbd, buf, sizeof buf, 0, 0); nbd_flush (nbd, 0); nbd_trim (nbd, 512, 0, 0); nbd_cache (nbd, 512, 0, 0); /* XXX Test structured reads and block status. */ nbd_shutdown (nbd, 0); } static void server (int fd, int sock) { struct pollfd pfds[1]; char rbuf[512], wbuf[512]; size_t wsize = 0; ssize_t r; for (;;) { pfds[0].fd = sock; pfds[0].events = POLLIN; if (wsize > 0 || fd >= 0) pfds[0].events |= POLLOUT; pfds[0].revents = 0; if (poll (pfds, 1, -1) == -1) { if (errno == EINTR) continue; perror ("poll"); /* This is not an error. */ return; } /* We can read from the client socket. Just throw away anything sent. */ if ((pfds[0].revents & POLLIN) != 0) { r = read (sock, rbuf, sizeof rbuf); if (r == -1 && errno != EINTR) { perror ("read"); return; } else if (r == 0) /* end of input from the server */ return; } /* We can write to the client socket. */ if ((pfds[0].revents & POLLOUT) != 0) { /* Write more data from the wbuf. */ if (wsize > 0) { morewrite: r = write (sock, wbuf, wsize); if (r == -1 && errno != EAGAIN && errno != EWOULDBLOCK) { perror ("write"); return; } else if (r > 0) { memmove (wbuf, &wbuf[r], wsize-r); wsize -= r; } } /* Write more data from the file. */ else if (fd >= 0) { r = read (fd, wbuf, sizeof wbuf); if (r == -1) { perror ("read"); _exit (EXIT_FAILURE); } else if (r == 0) { fd = -1; /* ignore the file from now on */ shutdown (sock, SHUT_WR); } else { wsize = r; goto morewrite; } } } } /* for (;;) */ } ��������������������������������������������������������������������������������������������������������������������libnbd-1.2.2/fuzzing/libnbd-libfuzzer-test.c��������������������������������������������������������0000664�0001750�0001750�00000010572�13560111515�015755� �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������0000000�0000000������������������������������������������������������������������������������������������������������������������������������������������������������������������������/* NBD client library in userspace * Copyright (C) 2013-2019 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* This is a libFuzzer test case for libnbd. The way it works is * similar to the AFL wrapper (libnbd-fuzz-wrapper), feeding the * binary data into the libnbd socket from a forked process. But the * mechanics are slightly different because libFuzzer calls a C * function with the test case instead of providing it in a file. */ #include <config.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <fcntl.h> #include <unistd.h> #include <poll.h> #include <errno.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/wait.h> #include <libnbd.h> static void client (int sock); static void server (const uint8_t *data, size_t size, int sock); /* This is the entry point called by libFuzzer. */ int LLVMFuzzerTestOneInput (const uint8_t *data, size_t size) { pid_t pid; int sv[2], r, status; /* Create a connected socket. */ if (socketpair (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0, sv) == -1) { perror ("socketpair"); exit (EXIT_FAILURE); } /* Fork: The parent will be the libnbd process (client). The child * will be the phony NBD server listening on the socket. */ pid = fork (); if (pid == -1) { perror ("fork"); exit (EXIT_FAILURE); } if (pid > 0) { /* Parent: libnbd client. */ close (sv[1]); client (sv[0]); close (sv[0]); again: r = wait (&status); if (r == -1) { if (errno == EINTR) goto again; perror ("wait"); exit (EXIT_FAILURE); } if (!WIFEXITED (status) || WEXITSTATUS (status) != 0) fprintf (stderr, "bad exit status %d\n", status); return 0; } /* Child: phony NBD server. */ close (sv[0]); server (data, size, sv[1]); close (sv[1]); _exit (EXIT_SUCCESS); } static void client (int sock) { struct nbd_handle *nbd; char buf[512]; nbd = nbd_create (); if (nbd == NULL) { fprintf (stderr, "%s\n", nbd_get_error ()); exit (EXIT_FAILURE); } /* Note we ignore errors in these calls because we are only * interested in whether the process crashes. */ /* This tests the handshake phase. */ nbd_connect_socket (nbd, sock); nbd_pread (nbd, buf, sizeof buf, 0, 0); nbd_pwrite (nbd, buf, sizeof buf, 0, 0); nbd_flush (nbd, 0); nbd_trim (nbd, 512, 0, 0); nbd_cache (nbd, 512, 0, 0); /* XXX Test structured reads and block status. */ nbd_shutdown (nbd, 0); nbd_close (nbd); } static void server (const uint8_t *data, size_t size, int sock) { struct pollfd pfds[1]; char rbuf[512]; ssize_t r; if (size == 0) shutdown (sock, SHUT_WR); for (;;) { pfds[0].fd = sock; pfds[0].events = POLLIN; if (size > 0) pfds[0].events |= POLLOUT; pfds[0].revents = 0; if (poll (pfds, 1, -1) == -1) { if (errno == EINTR) continue; perror ("poll"); /* This is not an error. */ return; } /* We can read from the client socket. Just throw away anything sent. */ if ((pfds[0].revents & POLLIN) != 0) { r = read (sock, rbuf, sizeof rbuf); if (r == -1 && errno != EINTR) { //perror ("read"); return; } else if (r == 0) /* end of input from the server */ return; } /* We can write to the client socket. */ if ((pfds[0].revents & POLLOUT) != 0) { if (size > 0) { r = write (sock, data, size); if (r == -1 && errno != EAGAIN && errno != EWOULDBLOCK) { perror ("write"); return; } else if (r > 0) { data += r; size -= r; if (size == 0) shutdown (sock, SHUT_WR); } } } } /* for (;;) */ } 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