diff --git a/configure.ac b/configure.ac
index f43fb724c7..c747fe1193 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,2185 +1,2188 @@
dnl
dnl autoconf for Pacemaker
dnl
dnl Copyright 2009-2022 the Pacemaker project contributors
dnl
dnl The version control history for this file may have further details.
dnl
dnl This source code is licensed under the GNU General Public License version 2
dnl or later (GPLv2+) WITHOUT ANY WARRANTY.
dnl ===============================================
dnl Bootstrap
dnl ===============================================
AC_PREREQ(2.64)
dnl AC_CONFIG_MACRO_DIR is deprecated as of autoconf 2.70 (2020-12-08).
dnl Once we can require that version, we can simplify this, and no longer
dnl need ACLOCAL_AMFLAGS in Makefile.am.
m4_ifdef([AC_CONFIG_MACRO_DIRS],
[AC_CONFIG_MACRO_DIRS([m4])],
[AC_CONFIG_MACRO_DIR([m4])])
AC_DEFUN([AC_DATAROOTDIR_CHECKED])
dnl Suggested structure:
dnl information on the package
dnl checks for programs
dnl checks for libraries
dnl checks for header files
dnl checks for types
dnl checks for structures
dnl checks for compiler characteristics
dnl checks for library functions
dnl checks for system services
m4_include([m4/version.m4])
AC_INIT([pacemaker], VERSION_NUMBER, [users@clusterlabs.org], [pacemaker],
PCMK_URL)
PCMK_FEATURES=""
LT_CONFIG_LTDL_DIR([libltdl])
AC_CONFIG_AUX_DIR([libltdl/config])
AC_CANONICAL_HOST
dnl Where #defines that autoconf makes (e.g. HAVE_whatever) go
dnl
dnl Internal header: include/config.h
dnl - Contains ALL defines
dnl - include/config.h.in is generated automatically by autoheader
dnl - NOT to be included in any header files except crm_internal.h
dnl (which is also not to be included in any other header files)
dnl
dnl External header: include/crm_config.h
dnl - Contains a subset of defines checked here
dnl - Manually edit include/crm_config.h.in to have configure include
dnl new defines
dnl - Should not include HAVE_* defines
dnl - Safe to include anywhere
AC_CONFIG_HEADERS([include/config.h include/crm_config.h])
dnl 1.13: minimum automake version required
dnl foreign: don't require GNU-standard top-level files
dnl tar-ustar: use (older) POSIX variant of generated tar rather than v7
dnl subdir-objects: keep .o's with their .c's (no-op in 2.0+)
AM_INIT_AUTOMAKE([1.13 foreign tar-ustar subdir-objects])
dnl Require minimum version of pkg-config
PKG_PROG_PKG_CONFIG(0.27)
AS_IF([test "x${PKG_CONFIG}" != x], [],
[AC_MSG_FAILURE([Could not find required build tool pkg-config (0.27 or later)])])
PKG_INSTALLDIR
PKG_NOARCH_INSTALLDIR
dnl Example 2.4. Silent Custom Rule to Generate a File
dnl %-bar.pc: %.pc
dnl $(AM_V_GEN)$(LN_S) $(notdir $^) $@
dnl Versioned attributes implementation is not yet production-ready
AC_DEFINE_UNQUOTED(ENABLE_VERSIONED_ATTRS, 0, [Enable versioned attributes])
CC_IN_CONFIGURE=yes
export CC_IN_CONFIGURE
LDD=ldd
dnl ========================================================================
dnl Compiler characteristics
dnl ========================================================================
dnl A particular compiler can be forced by setting the CC environment variable
AC_PROG_CC
dnl Use at least C99 if possible. This will generate an "obsolete" warning
dnl since autoconf 2.70, but is needed for older versions.
AC_PROG_CC_STDC
dnl C++ is not needed for build, just maintainer utilities
AC_PROG_CXX
dnl We use md5.c from gnulib, which has its own m4 macros. Per its docs:
dnl "The macro gl_EARLY must be called as soon as possible after verifying that
dnl the C compiler is working. ... The core part of the gnulib checks are done
dnl by the macro gl_INIT." In addition, prevent gnulib from introducing OpenSSL
dnl as a dependency.
gl_EARLY
gl_SET_CRYPTO_CHECK_DEFAULT([no])
gl_INIT
# --enable-new-dtags: Use RUNPATH instead of RPATH.
# It is necessary to have this done before libtool does linker detection.
# See also: https://github.com/kronosnet/kronosnet/issues/107
AX_CHECK_LINK_FLAG([-Wl,--enable-new-dtags],
[AM_LDFLAGS=-Wl,--enable-new-dtags],
[AC_MSG_ERROR(["Linker support for --enable-new-dtags is required"])])
AC_SUBST([AM_LDFLAGS])
saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$AM_LDFLAGS $LDFLAGS"
LT_INIT([dlopen])
LDFLAGS="$saved_LDFLAGS"
LTDL_INIT([convenience])
AC_TYPE_SIZE_T
AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(long long)
dnl ===============================================
dnl Helpers
dnl ===============================================
cc_supports_flag() {
local CFLAGS="-Werror $@"
AC_MSG_CHECKING([whether $CC supports $@])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[ ]])],
[RC=0; AC_MSG_RESULT([yes])],
[RC=1; AC_MSG_RESULT([no])])
return $RC
}
# Some tests need to use their own CFLAGS
cc_temp_flags() {
ac_save_CFLAGS="$CFLAGS"
CFLAGS="$*"
}
cc_restore_flags() {
CFLAGS=$ac_save_CFLAGS
}
# expand_path_option $path_variable_name $default
expand_path_option() {
# The first argument is the variable *name* (not value)
ac_path_varname="$1"
# Get the original value of the variable
ac_path_value=$(eval echo "\${${ac_path_varname}}")
# Expand any literal variable expressions in the value so that we don't
# end up with something like '${prefix}' in #defines etc.
#
# Autoconf deliberately leaves values unexpanded to allow overriding
# the configure script choices in make commands (for example,
# "make exec_prefix=/foo install"). No longer being able to do this seems
# like no great loss.
eval ac_path_value=$(eval echo "${ac_path_value}")
# Use (expanded) default if necessary
AS_IF([test x"${ac_path_value}" = x""],
[eval ac_path_value=$(eval echo "$2")])
# Require a full path
AS_CASE(["$ac_path_value"],
[/*], [eval ${ac_path_varname}="$ac_path_value"],
[*], [AC_MSG_ERROR([$ac_path_varname value "$ac_path_value" is not a full path])]
)
}
# yes_no_try $user_response $default
DISABLED=0
REQUIRED=1
OPTIONAL=2
yes_no_try() {
local value
AS_IF([test x"$1" = x""], [value="$2"], [value="$1"])
AS_CASE(["`echo "$value" | tr '[A-Z]' '[a-z]'`"],
[0|no|false|disable], [return $DISABLED],
[1|yes|true|enable], [return $REQUIRED],
[try|check], [return $OPTIONAL]
)
AC_MSG_ERROR([Invalid option value "$value"])
}
check_systemdsystemunitdir() {
AC_MSG_CHECKING([which system unit file directory to use])
PKG_CHECK_VAR([systemdsystemunitdir], [systemd], [systemdsystemunitdir])
AC_MSG_RESULT([${systemdsystemunitdir}])
test x"$systemdsystemunitdir" != x""
return $?
}
dnl ===============================================
dnl Configure Options
dnl ===============================================
dnl Actual library checks come later, but pkg-config can be used here to grab
dnl external values to use as defaults for configure options
dnl Per the autoconf docs, --enable-*/--disable-* options should control
dnl features inherent to Pacemaker, while --with-*/--without-* options should
dnl control the use of external software. However, --enable-*/--disable-* may
dnl implicitly require additional external dependencies, and
dnl --with-*/--without-* may implicitly enable or disable features, so the
dnl line is blurry.
dnl
dnl We also use --with-* options for custom file, directory, and path
dnl locations, since autoconf does not provide an option type for those.
dnl --enable-* options: build process
AC_ARG_ENABLE([quiet],
[AS_HELP_STRING([--enable-quiet],
[suppress make output unless there is an error @<:@no@:>@])]
)
yes_no_try "$enable_quiet" "no"
enable_quiet=$?
AC_ARG_ENABLE([fatal-warnings],
[AS_HELP_STRING([--enable-fatal-warnings],
[enable pedantic and fatal warnings for gcc @<:@try@:>@])],
)
yes_no_try "$enable_fatal_warnings" "try"
enable_fatal_warnings=$?
AC_ARG_ENABLE([hardening],
[AS_HELP_STRING([--enable-hardening],
[harden the resulting executables/libraries @<:@try@:>@])]
)
yes_no_try "$enable_hardening" "try"
enable_hardening=$?
dnl --enable-* options: features
AC_ARG_ENABLE([systemd],
[AS_HELP_STRING([--enable-systemd],
[enable support for managing resources via systemd @<:@try@:>@])]
)
yes_no_try "$enable_systemd" "try"
enable_systemd=$?
AC_ARG_ENABLE([upstart],
[AS_HELP_STRING([--enable-upstart],
[enable support for managing resources via Upstart (deprecated) @<:@try@:>@])]
)
yes_no_try "$enable_upstart" "try"
enable_upstart=$?
dnl --enable-* options: features inherent to Pacemaker
AC_ARG_ENABLE([compat-2.0],
[AS_HELP_STRING([--enable-compat-2.0], m4_normalize([
preserve certain output as it was in 2.0; this option will be
available only for the lifetime of the 2.1 series @<:@no@:>@]))]
)
yes_no_try "$enable_compat_2_0" "no"
enable_compat_2_0=$?
AS_IF([test $enable_compat_2_0 -ne $DISABLED],
[
AC_DEFINE_UNQUOTED([PCMK__COMPAT_2_0], [1],
[Keep certain output compatible with 2.0 release series])
PCMK_FEATURES="$PCMK_FEATURES compat-2.0"
]
)
# Add an option to create symlinks at the pre-2.0.0 daemon name locations, so
# that users and tools can continue to invoke those names directly (e.g., for
# meta-data). This option will be removed in a future release.
AC_ARG_ENABLE([legacy-links],
[AS_HELP_STRING([--enable-legacy-links],
[add symlinks for old daemon names (deprecated) @<:@no@:>@])]
)
yes_no_try "$enable_legacy_links" "no"
enable_legacy_links=$?
AM_CONDITIONAL([BUILD_LEGACY_LINKS], [test $enable_legacy_links -ne $DISABLED])
dnl --with-* options: external software support, and custom locations
dnl This argument is defined via an M4 macro so default can be a variable
AC_DEFUN([VERSION_ARG],
[AC_ARG_WITH([version],
[AS_HELP_STRING([--with-version=VERSION],
[override package version @<:@$1@:>@])],
[ PACEMAKER_VERSION="$withval" ],
[ PACEMAKER_VERSION="$PACKAGE_VERSION" ])]
)
VERSION_ARG(VERSION_NUMBER)
# Redefine PACKAGE_VERSION and VERSION according to PACEMAKER_VERSION in case
# the user used --with-version. Unfortunately, this can only affect the
# substitution variables and later uses in this file, not the config.h
# constants, so we have to be careful to use only PACEMAKER_VERSION in C code.
PACKAGE_VERSION=$PACEMAKER_VERSION
VERSION=$PACEMAKER_VERSION
CRM_DAEMON_USER=""
AC_ARG_WITH([daemon-user],
[AS_HELP_STRING([--with-daemon-user=USER],
[user to run unprivileged Pacemaker daemons as (advanced option: changing this may break other cluster components unless similarly configured) @<:@hacluster@:>@])],
[ CRM_DAEMON_USER="$withval" ]
)
CRM_DAEMON_GROUP=""
AC_ARG_WITH([daemon-group],
[AS_HELP_STRING([--with-daemon-group=GROUP],
[group to run unprivileged Pacemaker daemons as (advanced option: changing this may break other cluster components unless similarly configured) @<:@haclient@:>@])],
[ CRM_DAEMON_GROUP="$withval" ]
)
BUG_URL=""
AC_ARG_WITH([bug-url],
[AS_HELP_STRING([--with-bug-url=DIR], m4_normalize([
address where users should submit bug reports
@<:@https://bugs.clusterlabs.org/enter_bug.cgi?product=Pacemaker@:>@]))],
[ BUG_URL="$withval" ]
)
dnl --with-* options: features
AC_ARG_WITH([cibsecrets],
[AS_HELP_STRING([--with-cibsecrets],
[support separate file for CIB secrets @<:@no@:>@])]
)
yes_no_try "$with_cibsecrets" "no"
with_cibsecrets=$?
AC_ARG_WITH([gnutls],
[AS_HELP_STRING([--with-gnutls],
[support Pacemaker Remote and remote-tls-port using GnuTLS @<:@try@:>@])]
)
yes_no_try "$with_gnutls" "try"
with_gnutls=$?
PCMK_GNUTLS_PRIORITIES="NORMAL"
AC_ARG_WITH([gnutls-priorities],
[AS_HELP_STRING([--with-gnutls-priorities],
[default GnuTLS cipher priorities @<:@NORMAL@:>@])],
[ test x"$withval" = x"no" || PCMK_GNUTLS_PRIORITIES="$withval" ]
)
AC_ARG_WITH([concurrent-fencing-default],
[AS_HELP_STRING([--with-concurrent-fencing-default],
[default value for concurrent-fencing cluster option @<:@false@:>@])],
)
AS_CASE([$with_concurrent_fencing_default],
[""], [with_concurrent_fencing_default="false"],
[false], [],
[true], [PCMK_FEATURES="$PCMK_FEATURES default-concurrent-fencing"],
[AC_MSG_ERROR([Invalid value "$with_concurrent_fencing_default" for --with-concurrent-fencing-default])]
)
AC_DEFINE_UNQUOTED([PCMK__CONCURRENT_FENCING_DEFAULT],
["$with_concurrent_fencing_default"],
[Default value for concurrent-fencing cluster option])
AC_ARG_WITH([sbd-sync-default],
[AS_HELP_STRING([--with-sbd-sync-default], m4_normalize([
default value used by sbd if SBD_SYNC_RESOURCE_STARTUP
environment variable is not set @<:@false@:>@]))],
)
AS_CASE([$with_sbd_sync_default],
[""], [with_sbd_sync_default=false],
[false], [],
[true], [PCMK_FEATURES="$PCMK_FEATURES default-sbd-sync"],
[AC_MSG_ERROR([Invalid value "$with_sbd_sync_default" for --with-sbd-sync-default])]
)
AC_DEFINE_UNQUOTED([PCMK__SBD_SYNC_DEFAULT],
[$with_sbd_sync_default],
[Default value for SBD_SYNC_RESOURCE_STARTUP environment variable])
AC_ARG_WITH([resource-stickiness-default],
[AS_HELP_STRING([--with-resource-stickiness-default],
[If positive, value to add to new CIBs as explicit resource default for resource-stickiness @<:@0@:>@])],
)
errmsg="Invalid value \"$with_resource_stickiness_default\" for --with-resource-stickiness-default"
AS_CASE([$with_resource_stickiness_default],
[0|""], [with_resource_stickiness_default="0"],
[*[[!0-9]]*], [AC_MSG_ERROR([$errmsg])],
[PCMK_FEATURES="$PCMK_FEATURES default-resource-stickiness"]
)
AC_DEFINE_UNQUOTED([PCMK__RESOURCE_STICKINESS_DEFAULT],
[$with_resource_stickiness_default],
[Default value for resource-stickiness resource meta-attribute])
AC_ARG_WITH([corosync],
[AS_HELP_STRING([--with-corosync],
[support the Corosync messaging and membership layer @<:@try@:>@])]
)
yes_no_try "$with_corosync" "try"
with_corosync=$?
dnl @TODO This should be a corosync pkgconfig variable
PCMK__COROSYNC_CONF=""
AC_ARG_WITH([corosync-conf],
[AS_HELP_STRING([--with-corosync-conf], m4_normalize([
location of Corosync configuration file
@<:@SYSCONFDIR/corosync/corosync.conf@:>@]))],
[ PCMK__COROSYNC_CONF="$withval" ]
)
AC_ARG_WITH([nagios],
[AS_HELP_STRING([--with-nagios], [support nagios resources])]
)
yes_no_try "$with_nagios" "try"
with_nagios=$?
dnl --with-* options: directory locations
AC_ARG_WITH([nagios-plugin-dir],
[AS_HELP_STRING([--with-nagios-plugin-dir=DIR],
[directory for nagios plugins @<:@LIBEXECDIR/nagios/plugins@:>@])],
[ NAGIOS_PLUGIN_DIR="$withval" ]
)
AC_ARG_WITH([nagios-metadata-dir],
[AS_HELP_STRING([--with-nagios-metadata-dir=DIR],
[directory for nagios plugins metadata @<:@DATADIR/nagios/plugins-metadata@:>@])],
[ NAGIOS_METADATA_DIR="$withval" ]
)
INITDIR=""
AC_ARG_WITH([initdir],
[AS_HELP_STRING([--with-initdir=DIR],
[directory for init (rc) scripts])],
[ INITDIR="$withval" ]
)
systemdsystemunitdir="${systemdsystemunitdir-}"
AC_ARG_WITH([systemdsystemunitdir],
[AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
[directory for systemd unit files (advanced option: must match what systemd uses)])],
[ systemdsystemunitdir="$withval" ]
)
CONFIGDIR=""
AC_ARG_WITH([configdir],
[AS_HELP_STRING([--with-configdir=DIR],
[directory for Pacemaker configuration file @<:@SYSCONFDIR/sysconfig@:>@])],
[ CONFIGDIR="$withval" ]
)
dnl --runstatedir is available as of autoconf 2.70 (2020-12-08). When users
dnl have an older version, they can use our --with-runstatedir.
pcmk_runstatedir=""
AC_ARG_WITH([runstatedir],
[AS_HELP_STRING([--with-runstatedir=DIR],
[modifiable per-process data @<:@LOCALSTATEDIR/run@:>@ (ignored if --runstatedir is available)])],
[ pcmk_runstatedir="$withval" ]
)
CRM_LOG_DIR=""
AC_ARG_WITH([logdir],
[AS_HELP_STRING([--with-logdir=DIR],
[directory for Pacemaker log file @<:@LOCALSTATEDIR/log/pacemaker@:>@])],
[ CRM_LOG_DIR="$withval" ]
)
CRM_BUNDLE_DIR=""
AC_ARG_WITH([bundledir],
[AS_HELP_STRING([--with-bundledir=DIR],
[directory for Pacemaker bundle logs @<:@LOCALSTATEDIR/log/pacemaker/bundles@:>@])],
[ CRM_BUNDLE_DIR="$withval" ]
)
dnl Get default from resource-agents if possible. Otherwise, the default uses
dnl /usr/lib rather than libdir because it's determined by the OCF project and
dnl not Pacemaker. Even if a user wants to install Pacemaker to /usr/local or
dnl such, the OCF agents will be expected in their usual location. However, we
dnl do give the user the option to override it.
PKG_CHECK_VAR([OCF_ROOT_DIR], [resource-agents], [ocfrootdir], [],
[OCF_ROOT_DIR="/usr/lib/ocf"])
AC_ARG_WITH([ocfdir],
[AS_HELP_STRING([--with-ocfdir=DIR], m4_normalize([
OCF resource agent root directory (advanced option: changing this
may break other cluster components unless similarly configured)
@<:@value from resource-agents package if available otherwise
/usr/lib/ocf@:>@]))],
[ OCF_ROOT_DIR="$withval" ]
)
AC_SUBST(OCF_ROOT_DIR)
AC_DEFINE_UNQUOTED([OCF_ROOT_DIR], ["$OCF_ROOT_DIR"],
[OCF root directory for resource agents and libraries])
PKG_CHECK_VAR([OCF_RA_PATH], [resource-agents], [ocfrapath], [],
[OCF_RA_PATH="$OCF_ROOT_DIR/resource.d"])
AC_ARG_WITH([ocfrapath],
[AS_HELP_STRING([--with-ocfrapath=DIR], m4_normalize([
OCF resource agent directories (colon-separated) to search
@<:@value from resource-agents package if available otherwise
OCFDIR/resource.d@:>@]))],
[ OCF_RA_PATH="$withval" ]
)
AC_SUBST(OCF_RA_PATH)
OCF_RA_INSTALL_DIR="$OCF_ROOT_DIR/resource.d"
AC_ARG_WITH([ocfrainstalldir],
[AS_HELP_STRING([--with-ocfrainstalldir=DIR], m4_normalize([
OCF installation directory for Pacemakers resource agents
@<:@OCFDIR/resource.d@:>@]))],
[ OCF_RA_INSTALL_DIR="$withval" ]
)
AC_SUBST(OCF_RA_INSTALL_DIR)
dnl Get default from fence-agents if available
PKG_CHECK_VAR([FA_PREFIX], [fence-agents], [prefix],
[PCMK__FENCE_BINDIR="${FA_PREFIX}/sbin"],
[PCMK__FENCE_BINDIR="$sbindir"])
AC_ARG_WITH([fence-bindir],
[AS_HELP_STRING([--with-fence-bindir=DIR], m4_normalize([
directory for executable fence agents @<:@value from fence-agents
package if available otherwise SBINDIR@:>@]))],
[ PCMK__FENCE_BINDIR="$withval" ]
)
AC_SUBST(PCMK__FENCE_BINDIR)
dnl --with-* options: non-production testing
AC_ARG_WITH([profiling],
[AS_HELP_STRING([--with-profiling],
[disable optimizations, for effective profiling @<:@no@:>@])]
)
yes_no_try "$with_profiling" "no"
with_profiling=$?
AC_ARG_WITH([coverage],
[AS_HELP_STRING([--with-coverage],
[disable optimizations, for effective profiling and coverage testing @<:@no@:>@])]
)
yes_no_try "$with_coverage" "no"
with_coverage=$?
AC_ARG_WITH([sanitizers],
[AS_HELP_STRING([--with-sanitizers=...,...],
[enable SANitizer build, do *NOT* use for production. Only ASAN/UBSAN/TSAN are currently supported])],
[ SANITIZERS="$withval" ],
[ SANITIZERS="" ])
dnl Environment variable options
AC_ARG_VAR([CFLAGS_HARDENED_LIB], [extra C compiler flags for hardened libraries])
AC_ARG_VAR([LDFLAGS_HARDENED_LIB], [extra linker flags for hardened libraries])
AC_ARG_VAR([CFLAGS_HARDENED_EXE], [extra C compiler flags for hardened executables])
AC_ARG_VAR([LDFLAGS_HARDENED_EXE], [extra linker flags for hardened executables])
dnl ===============================================
dnl General Processing
dnl ===============================================
AC_DEFINE_UNQUOTED(PACEMAKER_VERSION, "$VERSION",
[Version number of this Pacemaker build])
PACKAGE_SERIES=`echo $VERSION | awk -F. '{ print $1"."$2 }'`
AC_SUBST(PACKAGE_SERIES)
AC_PROG_LN_S
AC_PROG_MKDIR_P
# Check for fatal warning support
AS_IF([test $enable_fatal_warnings -ne $DISABLED && test "$GCC" = "yes" && cc_supports_flag -Werror],
[WERROR="-Werror"],
[
WERROR=""
AS_CASE([$enable_fatal_warnings],
[$REQUIRED], [AC_MSG_ERROR([Compiler does not support fatal warnings])],
[$OPTIONAL], [
AC_MSG_NOTICE([Compiler does not support fatal warnings])
enable_fatal_warnings=$DISABLED
])
])
AC_MSG_NOTICE([Sanitizing prefix: ${prefix}])
AS_IF([test "$prefix" = "NONE"],
[
prefix=/usr
dnl Fix default variables - "prefix" variable if not specified
AS_IF([test "$localstatedir" = "\${prefix}/var"],
[localstatedir="/var"])
AS_IF([test "$sysconfdir" = "\${prefix}/etc"],
[sysconfdir="/etc"])
])
AC_MSG_NOTICE([Sanitizing exec_prefix: ${exec_prefix}])
case $exec_prefix in
prefix|NONE)
exec_prefix=$prefix
;;
esac
AC_MSG_NOTICE([Sanitizing INITDIR: ${INITDIR}])
case $INITDIR in
prefix) INITDIR=$prefix;;
"")
AC_MSG_CHECKING([which init (rc) directory to use])
for initdir in /etc/init.d /etc/rc.d/init.d /sbin/init.d \
/usr/local/etc/rc.d /etc/rc.d
do
if
test -d $initdir
then
INITDIR=$initdir
break
fi
done
AC_MSG_RESULT([$INITDIR])
;;
esac
AC_SUBST(INITDIR)
AC_MSG_NOTICE([Sanitizing libdir: ${libdir}])
case $libdir in
prefix|NONE)
AC_MSG_CHECKING([which lib directory to use])
for aDir in lib64 lib
do
trydir="${exec_prefix}/${aDir}"
if
test -d ${trydir}
then
libdir=${trydir}
break
fi
done
AC_MSG_RESULT([$libdir]);
;;
esac
dnl Expand values of autoconf-provided directory options
expand_path_option prefix
expand_path_option exec_prefix
expand_path_option bindir
expand_path_option sbindir
expand_path_option libexecdir
expand_path_option datadir
expand_path_option sysconfdir
expand_path_option sharedstatedir
expand_path_option localstatedir
expand_path_option libdir
expand_path_option includedir
expand_path_option oldincludedir
expand_path_option infodir
expand_path_option mandir
dnl Home-grown variables
AS_IF([test x"${runstatedir}" = x""], [runstatedir="${pcmk_runstatedir}"])
expand_path_option runstatedir "${localstatedir}/run"
AC_DEFINE_UNQUOTED([PCMK_RUN_DIR], ["$runstatedir"],
[Location for modifiable per-process data])
AC_SUBST(runstatedir)
expand_path_option INITDIR
AC_DEFINE_UNQUOTED([PCMK__LSB_INIT_DIR], ["$INITDIR"],
[Location for LSB init scripts])
expand_path_option docdir "${datadir}/doc/${PACKAGE}-${VERSION}"
AC_SUBST(docdir)
expand_path_option CONFIGDIR "${sysconfdir}/sysconfig"
AC_SUBST(CONFIGDIR)
expand_path_option PCMK__COROSYNC_CONF "${sysconfdir}/corosync/corosync.conf"
AC_SUBST(PCMK__COROSYNC_CONF)
expand_path_option CRM_LOG_DIR "${localstatedir}/log/pacemaker"
AC_DEFINE_UNQUOTED(CRM_LOG_DIR,"$CRM_LOG_DIR", Location for Pacemaker log file)
AC_SUBST(CRM_LOG_DIR)
expand_path_option CRM_BUNDLE_DIR "${localstatedir}/log/pacemaker/bundles"
AC_DEFINE_UNQUOTED(CRM_BUNDLE_DIR,"$CRM_BUNDLE_DIR", Location for Pacemaker bundle logs)
AC_SUBST(CRM_BUNDLE_DIR)
expand_path_option PCMK__FENCE_BINDIR
AC_DEFINE_UNQUOTED(PCMK__FENCE_BINDIR,"$PCMK__FENCE_BINDIR",
[Location for executable fence agents])
expand_path_option OCF_RA_PATH
AC_DEFINE_UNQUOTED([OCF_RA_PATH], ["$OCF_RA_PATH"],
[OCF directories to search for resource agents ])
AS_IF([test x"${PCMK_GNUTLS_PRIORITIES}" != x""], [],
[AC_MSG_ERROR([--with-gnutls-priorities value must not be empty])])
AC_DEFINE_UNQUOTED([PCMK_GNUTLS_PRIORITIES], ["$PCMK_GNUTLS_PRIORITIES"],
[GnuTLS cipher priorities])
if test x"${BUG_URL}" = x""; then
BUG_URL="https://bugs.clusterlabs.org/enter_bug.cgi?product=Pacemaker"
fi
AC_SUBST(BUG_URL)
for j in prefix exec_prefix bindir sbindir libexecdir datadir sysconfdir \
sharedstatedir localstatedir libdir includedir oldincludedir infodir \
mandir INITDIR docdir CONFIGDIR
do
dirname=`eval echo '${'${j}'}'`
if
test ! -d "$dirname"
then
AC_MSG_WARN([$j directory ($dirname) does not exist (yet)])
fi
done
us_auth=
AC_CHECK_HEADER([sys/socket.h], [
AC_CHECK_DECL([SO_PEERCRED], [
# Linux
AC_CHECK_TYPE([struct ucred], [
us_auth=peercred_ucred;
AC_DEFINE([US_AUTH_PEERCRED_UCRED], [1],
[Define if Unix socket auth method is
getsockopt(s, SO_PEERCRED, &ucred, ...)])
], [
# OpenBSD
AC_CHECK_TYPE([struct sockpeercred], [
us_auth=localpeercred_sockepeercred;
AC_DEFINE([US_AUTH_PEERCRED_SOCKPEERCRED], [1],
[Define if Unix socket auth method is
getsockopt(s, SO_PEERCRED, &sockpeercred, ...)])
], [], [[#include <sys/socket.h>]])
], [[#define _GNU_SOURCE
#include <sys/socket.h>]])
], [], [[#include <sys/socket.h>]])
])
AS_IF([test -z "${us_auth}"], [
# FreeBSD
AC_CHECK_DECL([getpeereid], [
us_auth=getpeereid;
AC_DEFINE([US_AUTH_GETPEEREID], [1],
[Define if Unix socket auth method is
getpeereid(s, &uid, &gid)])
], [
# Solaris/OpenIndiana
AC_CHECK_DECL([getpeerucred], [
us_auth=getpeerucred;
AC_DEFINE([US_AUTH_GETPEERUCRED], [1],
[Define if Unix socket auth method is
getpeercred(s, &ucred)])
], [
AC_MSG_FAILURE([No way to authenticate a Unix socket peer])
], [[#include <ucred.h>]])
])
])
dnl OS-based decision-making is poor autotools practice; feature-based
dnl mechanisms are strongly preferred. Keep this section to a bare minimum;
dnl regard as a "necessary evil".
INIT_EXT=""
PROCFS=0
case "$host_os" in
dnl Solaris and some *BSD versions support procfs but not files we need
*bsd*)
INIT_EXT=".sh"
;;
*linux*)
PROCFS=1
;;
darwin*)
LIBS="$LIBS -L${prefix}/lib"
CFLAGS="$CFLAGS -I${prefix}/include"
;;
esac
AC_SUBST(INIT_EXT)
AC_DEFINE_UNQUOTED([SUPPORT_PROCFS], [$PROCFS],
[Define to 1 if procfs is supported])
case "$host_cpu" in
ppc64|powerpc64)
case $CFLAGS in
*powerpc64*)
;;
*)
if test "$GCC" = yes; then
CFLAGS="$CFLAGS -m64"
fi
;;
esac
;;
esac
# C99 doesn't guarantee uint64_t type and related format specifiers, but
# prerequisites, corosync + libqb, use that widely, so the target platforms
# are already pre-constrained to those "64bit-clean" (doesn't imply native
# bit width) and hence we deliberately refrain from artificial surrogates
# (sans manipulation through cached values).
AC_CACHE_VAL(
[pcmk_cv_decl_inttypes],
[
AC_CHECK_DECLS(
[PRIu64, PRIu32, PRIx32,
SCNu64],
[pcmk_cv_decl_inttypes="PRIu64 PRIu32 PRIx32 SCNu64"],
[
# test shall only react on "no" cached result & error out respectively
if test "x$ac_cv_have_decl_PRIu64" = xno; then
AC_MSG_ERROR([lack of inttypes.h based specifier serving uint64_t (PRIu64)])
elif test "x$ac_cv_have_decl_PRIu32" = xno; then
AC_MSG_ERROR([lack of inttypes.h based specifier serving uint32_t (PRIu32)])
elif test "x$ac_cv_have_decl_PRIx32" = xno; then
AC_MSG_ERROR([lack of inttypes.h based hexa specifier serving uint32_t (PRIx32)])
elif test "x$ac_cv_have_decl_SCNu64" = xno; then
AC_MSG_ERROR([lack of inttypes.h based specifier gathering uint64_t (SCNu64)])
fi
],
[[#include <inttypes.h>]]
)
]
)
(
set $pcmk_cv_decl_inttypes
AC_DEFINE_UNQUOTED([U64T], [$1], [Correct format specifier for U64T])
AC_DEFINE_UNQUOTED([U32T], [$2], [Correct format specifier for U32T])
AC_DEFINE_UNQUOTED([X32T], [$3], [Correct format specifier for X32T])
AC_DEFINE_UNQUOTED([U64TS], [$4], [Correct format specifier for U64TS])
)
dnl ===============================================
dnl Program Paths
dnl ===============================================
PATH="$PATH:/sbin:/usr/sbin:/usr/local/sbin:/usr/local/bin"
export PATH
dnl Replacing AC_PROG_LIBTOOL with AC_CHECK_PROG because LIBTOOL
dnl was NOT being expanded all the time thus causing things to fail.
AC_CHECK_PROGS(LIBTOOL, glibtool libtool libtool15 libtool13)
AS_IF([test "x${LIBTOOL}" != "x"], [],
[AC_MSG_FAILURE([Could not find required build tool libtool (or equivalent)])])
dnl Pacemaker's executable python scripts will invoke the python specified by
dnl configure's PYTHON variable. If not specified, AM_PATH_PYTHON will check a
dnl built-in list with (unversioned) "python" having precedence. To configure
dnl Pacemaker to use a specific python interpreter version, define PYTHON
dnl when calling configure, for example: ./configure PYTHON=/usr/bin/python3.6
dnl Ensure PYTHON is an absolute path
AS_IF([test x"${PYTHON}" != x""], [AC_PATH_PROG([PYTHON], [$PYTHON])])
dnl Require a minimum Python version
AM_PATH_PYTHON([3.4])
AC_PATH_PROGS([ASCIIDOC_CONV], [asciidoc asciidoctor])
AC_PATH_PROG([HELP2MAN], [help2man])
AC_PATH_PROG([SPHINX], [sphinx-build])
AC_PATH_PROG([INKSCAPE], [inkscape])
AC_PATH_PROG([XSLTPROC], [xsltproc])
AC_PATH_PROG([XMLCATALOG], [xmlcatalog])
dnl Bash is needed for building man pages and running regression tests.
dnl BASH is already an environment variable, so use something else.
AC_PATH_PROG([BASH_PATH], [bash])
AS_IF([test "x${BASH_PATH}" != "x"], [],
[AC_MSG_FAILURE([Could not find required build tool bash])])
AC_PATH_PROGS(VALGRIND_BIN, valgrind, /usr/bin/valgrind)
AC_DEFINE_UNQUOTED(VALGRIND_BIN, "$VALGRIND_BIN", Valgrind command)
AM_CONDITIONAL(BUILD_HELP, test x"${HELP2MAN}" != x"")
if test x"${HELP2MAN}" != x""; then
PCMK_FEATURES="$PCMK_FEATURES generated-manpages"
fi
MANPAGE_XSLT=""
if test x"${XSLTPROC}" != x""; then
AC_MSG_CHECKING([for DocBook-to-manpage transform])
# first try to figure out correct template using xmlcatalog query,
# resort to extensive (semi-deterministic) file search if that fails
DOCBOOK_XSL_URI='http://docbook.sourceforge.net/release/xsl/current'
DOCBOOK_XSL_PATH='manpages/docbook.xsl'
MANPAGE_XSLT=$(${XMLCATALOG} "" ${DOCBOOK_XSL_URI}/${DOCBOOK_XSL_PATH} \
| sed -n 's|^file://||p;q')
if test x"${MANPAGE_XSLT}" = x""; then
DIRS=$(find "${datadir}" -name $(basename $(dirname ${DOCBOOK_XSL_PATH})) \
-type d 2>/dev/null | LC_ALL=C sort)
XSLT=$(basename ${DOCBOOK_XSL_PATH})
for d in ${DIRS}
do
if test -f "${d}/${XSLT}"; then
MANPAGE_XSLT="${d}/${XSLT}"
break
fi
done
fi
fi
AC_MSG_RESULT([$MANPAGE_XSLT])
AC_SUBST(MANPAGE_XSLT)
AM_CONDITIONAL(BUILD_XML_HELP, test x"${MANPAGE_XSLT}" != x"")
if test x"${MANPAGE_XSLT}" != x""; then
PCMK_FEATURES="$PCMK_FEATURES agent-manpages"
fi
AM_CONDITIONAL([IS_ASCIIDOC], [echo "${ASCIIDOC_CONV}" | grep -Eq 'asciidoc$'])
AM_CONDITIONAL([BUILD_ASCIIDOC], [test "x${ASCIIDOC_CONV}" != x])
if test "x${ASCIIDOC_CONV}" != x; then
PCMK_FEATURES="$PCMK_FEATURES ascii-docs"
fi
AM_CONDITIONAL([BUILD_SPHINX_DOCS],
[test x"${SPHINX}" != x"" && test x"${INKSCAPE}" != x""])
AM_COND_IF([BUILD_SPHINX_DOCS], [PCMK_FEATURES="$PCMK_FEATURES books"])
dnl Pacemaker's shell scripts (and thus man page builders) rely on GNU getopt
AC_MSG_CHECKING([for GNU-compatible getopt])
IFS_orig=$IFS
IFS=:
for PATH_DIR in $PATH
do
IFS=$IFS_orig
GETOPT_PATH="${PATH_DIR}/getopt"
if test -f "$GETOPT_PATH" && test -x "$GETOPT_PATH" ; then
$GETOPT_PATH -T >/dev/null 2>/dev/null
if test $? -eq 4; then
break
fi
fi
GETOPT_PATH=""
done
IFS=$IFS_orig
AS_IF([test -n "$GETOPT_PATH"], [AC_MSG_RESULT([$GETOPT_PATH])],
[
AC_MSG_RESULT([no])
AC_MSG_ERROR([Could not find required build tool GNU-compatible getopt])
])
AC_SUBST([GETOPT_PATH])
dnl ========================================================================
dnl checks for library functions to replace them
dnl
dnl NoSuchFunctionName:
dnl is a dummy function which no system supplies. It is here to make
dnl the system compile semi-correctly on OpenBSD which doesn't know
dnl how to create an empty archive
dnl
dnl scandir: Only on BSD.
dnl System-V systems may have it, but hidden and/or deprecated.
dnl A replacement function is supplied for it.
dnl
dnl strerror: returns a string that corresponds to an errno.
dnl A replacement function is supplied for it.
dnl
dnl strnlen: is a gnu function similar to strlen, but safer.
dnl We wrote a tolerably-fast replacement function for it.
dnl
dnl strndup: is a gnu function similar to strdup, but safer.
dnl We wrote a tolerably-fast replacement function for it.
AC_REPLACE_FUNCS(alphasort NoSuchFunctionName scandir strerror strchrnul strnlen strndup)
dnl ===============================================
dnl Libraries
dnl ===============================================
AC_CHECK_LIB(socket, socket) dnl -lsocket
AC_CHECK_LIB(c, dlopen) dnl if dlopen is in libc...
AC_CHECK_LIB(dl, dlopen) dnl -ldl (for Linux)
AC_CHECK_LIB(rt, sched_getscheduler) dnl -lrt (for Tru64)
AC_CHECK_LIB(gnugetopt, getopt_long) dnl -lgnugetopt ( if available )
AC_CHECK_LIB(pam, pam_start) dnl -lpam (if available)
PKG_CHECK_MODULES([UUID], [uuid],
[CPPFLAGS="${CPPFLAGS} ${UUID_CFLAGS}"
LIBS="${LIBS} ${UUID_LIBS}"])
AC_CHECK_FUNCS([sched_setscheduler])
if test "$ac_cv_func_sched_setscheduler" != yes; then
PC_LIBS_RT=""
else
PC_LIBS_RT="-lrt"
fi
AC_SUBST(PC_LIBS_RT)
# Require minimum glib version
PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.42.0],
[CPPFLAGS="${CPPFLAGS} ${GLIB_CFLAGS}"
LIBS="${LIBS} ${GLIB_LIBS}"])
# Check whether high-resolution sleep function is available
AC_CHECK_FUNCS([nanosleep usleep])
#
# Where is dlopen?
#
if test "$ac_cv_lib_c_dlopen" = yes; then
LIBADD_DL=""
elif test "$ac_cv_lib_dl_dlopen" = yes; then
LIBADD_DL=-ldl
else
LIBADD_DL=${lt_cv_dlopen_libs}
fi
PKG_CHECK_MODULES(LIBXML2, [libxml-2.0],
[CPPFLAGS="${CPPFLAGS} ${LIBXML2_CFLAGS}"
LIBS="${LIBS} ${LIBXML2_LIBS}"])
REQUIRE_LIB([xslt], [xsltApplyStylesheet])
dnl ========================================================================
dnl Headers
dnl ========================================================================
# Some distributions insert #warnings into deprecated headers. If we will
# enable fatal warnings for the build, then enable them for the header checks
# as well, otherwise the build could fail even though the header check
# succeeds. (We should probably be doing this in more places.)
cc_temp_flags "$CFLAGS $WERROR"
# Optional headers (inclusion of these should be conditional in C code)
AC_CHECK_HEADERS([getopt.h])
AC_CHECK_HEADERS([linux/swab.h])
AC_CHECK_HEADERS([stddef.h])
AC_CHECK_HEADERS([sys/signalfd.h])
AC_CHECK_HEADERS([uuid/uuid.h])
AC_CHECK_HEADERS([security/pam_appl.h pam/pam_appl.h])
# Required headers
REQUIRE_HEADER([arpa/inet.h])
REQUIRE_HEADER([ctype.h])
REQUIRE_HEADER([dirent.h])
REQUIRE_HEADER([errno.h])
REQUIRE_HEADER([glib.h])
REQUIRE_HEADER([grp.h])
REQUIRE_HEADER([limits.h])
REQUIRE_HEADER([netdb.h])
REQUIRE_HEADER([netinet/in.h])
REQUIRE_HEADER([netinet/ip.h], [
#include <sys/types.h>
#include <netinet/in.h>
])
REQUIRE_HEADER([pwd.h])
REQUIRE_HEADER([signal.h])
REQUIRE_HEADER([stdio.h])
REQUIRE_HEADER([stdlib.h])
REQUIRE_HEADER([string.h])
REQUIRE_HEADER([strings.h])
REQUIRE_HEADER([sys/ioctl.h])
REQUIRE_HEADER([sys/param.h])
REQUIRE_HEADER([sys/reboot.h])
REQUIRE_HEADER([sys/resource.h])
REQUIRE_HEADER([sys/socket.h])
REQUIRE_HEADER([sys/stat.h])
REQUIRE_HEADER([sys/time.h])
REQUIRE_HEADER([sys/types.h])
REQUIRE_HEADER([sys/utsname.h])
REQUIRE_HEADER([sys/wait.h])
REQUIRE_HEADER([time.h])
REQUIRE_HEADER([unistd.h])
REQUIRE_HEADER([libxml/xpath.h])
REQUIRE_HEADER([libxslt/xslt.h])
cc_restore_flags
AC_CHECK_FUNCS([uuid_unparse], [],
[AC_MSG_FAILURE([Could not find required C function uuid_unparse()])])
AC_CACHE_CHECK([whether __progname and __progname_full are available],
[pf_cv_var_progname], AC_LINK_IFELSE([
AC_LANG_PROGRAM([[extern char *__progname, *__progname_full;]],
[[__progname = "foo"; __progname_full = "foo bar";]],
[pf_cv_var_progname="yes"],
[pf_cv_var_progname="no"])
]))
AS_IF([test "$pf_cv_var_progname" = "yes"], [AC_DEFINE(HAVE___PROGNAME,1,[ ])])
dnl ========================================================================
dnl Generic declarations
dnl ========================================================================
AC_CHECK_DECLS([CLOCK_MONOTONIC], [PCMK_FEATURES="$PCMK_FEATURES monotonic"], [], [[
#include <time.h>
]])
dnl ========================================================================
dnl Unit test declarations
dnl ========================================================================
AC_CHECK_DECLS([assert_float_equal], [], [], [[
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
]])
cc_temp_flags "$CFLAGS -Wl,--wrap=uname"
WRAPPABLE_UNAME="no"
AC_MSG_CHECKING([if uname() can be wrapped])
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <sys/utsname.h>
int __wrap_uname(struct utsname *buf) {
return 100;
}
int main(int argc, char **argv) {
struct utsname x;
return uname(&x) == 100 ? 0 : 1;
}
]])],
[ WRAPPABLE_UNAME="yes" ], [ WRAPPABLE_UNAME="no"])
AC_MSG_RESULT([$WRAPPABLE_UNAME])
AM_CONDITIONAL([WRAPPABLE_UNAME], [test "$WRAPPABLE_UNAME" = "yes"])
cc_restore_flags
dnl ========================================================================
dnl Structures
dnl ========================================================================
AC_CHECK_MEMBERS([struct tm.tm_gmtoff],,,[[#include <time.h>]])
AC_CHECK_MEMBER([struct dirent.d_type],
AC_DEFINE(HAVE_STRUCT_DIRENT_D_TYPE,1,[Define this if struct dirent has d_type]),,
[#include <dirent.h>])
dnl ========================================================================
dnl Functions
dnl ========================================================================
REQUIRE_FUNC([getopt])
REQUIRE_FUNC([setenv])
REQUIRE_FUNC([unsetenv])
AC_CACHE_CHECK(whether sscanf supports %m,
pf_cv_var_sscanf,
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <stdio.h>
const char *s = "some-command-line-arg";
int main(int argc, char **argv) {
char *name = NULL;
int n = sscanf(s, "%ms", &name);
return n == 1 ? 0 : 1;
}
]])],
pf_cv_var_sscanf="yes", pf_cv_var_sscanf="no", pf_cv_var_sscanf="no"))
AS_IF([test "$pf_cv_var_sscanf" = "yes"], [AC_DEFINE(SSCANF_HAS_M, 1, [ ])])
dnl ========================================================================
dnl bzip2
dnl ========================================================================
REQUIRE_HEADER([bzlib.h])
REQUIRE_LIB([bz2], [BZ2_bzBuffToBuffCompress])
dnl ========================================================================
dnl sighandler_t is missing from Illumos, Solaris11 systems
dnl ========================================================================
AC_MSG_CHECKING([for sighandler_t])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]], [[sighandler_t *f;]])],
[
AC_MSG_RESULT([yes])
AC_DEFINE([HAVE_SIGHANDLER_T], [1],
[Define to 1 if sighandler_t is available])
],
[AC_MSG_RESULT([no])])
dnl ========================================================================
dnl ncurses
dnl ========================================================================
dnl
dnl A few OSes (e.g. Linux) deliver a default "ncurses" alongside "curses".
dnl Many non-Linux deliver "curses"; sites may add "ncurses".
dnl
dnl However, the source-code recommendation for both is to #include "curses.h"
dnl (i.e. "ncurses" still wants the include to be simple, no-'n', "curses.h").
dnl
dnl ncurses takes precedence.
dnl
AC_CHECK_HEADERS([curses.h curses/curses.h ncurses.h ncurses/ncurses.h])
dnl Although n-library is preferred, only look for it if the n-header was found.
CURSESLIBS=''
PC_NAME_CURSES=""
PC_LIBS_CURSES=""
AS_IF([test "$ac_cv_header_ncurses_h" = "yes"], [
AC_CHECK_LIB(ncurses, printw,
[AC_DEFINE(HAVE_LIBNCURSES,1, have ncurses library)])
CURSESLIBS=`$PKG_CONFIG --libs ncurses` || CURSESLIBS='-lncurses'
PC_NAME_CURSES="ncurses"
])
AS_IF([test "$ac_cv_header_ncurses_ncurses_h" = "yes"], [
AC_CHECK_LIB(ncurses, printw,
[AC_DEFINE(HAVE_LIBNCURSES,1, have ncurses library)])
CURSESLIBS=`$PKG_CONFIG --libs ncurses` || CURSESLIBS='-lncurses'
PC_NAME_CURSES="ncurses"
])
dnl Only look for non-n-library if there was no n-library.
AS_IF([test X"$CURSESLIBS" = X"" && test "$ac_cv_header_curses_h" = "yes"], [
AC_CHECK_LIB(curses, printw,
[CURSESLIBS='-lcurses'; AC_DEFINE(HAVE_LIBCURSES,1, have curses library)])
PC_LIBS_CURSES="$CURSESLIBS"
])
dnl Only look for non-n-library if there was no n-library.
AS_IF([test X"$CURSESLIBS" = X"" && test "$ac_cv_header_curses_curses_h" = "yes"], [
AC_CHECK_LIB(curses, printw,
[CURSESLIBS='-lcurses'; AC_DEFINE(HAVE_LIBCURSES,1, have curses library)])
PC_LIBS_CURSES="$CURSESLIBS"
])
if test "x$CURSESLIBS" != "x"; then
PCMK_FEATURES="$PCMK_FEATURES ncurses"
fi
dnl Check for printw() prototype compatibility
AS_IF([test X"$CURSESLIBS" != X"" && cc_supports_flag -Wcast-qual], [
ac_save_LIBS=$LIBS
LIBS="$CURSESLIBS"
cc_temp_flags "-Wcast-qual $WERROR"
# avoid broken test because of hardened build environment in Fedora 23+
# - https://fedoraproject.org/wiki/Changes/Harden_All_Packages
# - https://bugzilla.redhat.com/1297985
AS_IF([cc_supports_flag -fPIC], [CFLAGS="$CFLAGS -fPIC"])
AC_MSG_CHECKING([whether curses library is compatible])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([
#if defined(HAVE_NCURSES_H)
# include <ncurses.h>
#elif defined(HAVE_NCURSES_NCURSES_H)
# include <ncurses/ncurses.h>
#elif defined(HAVE_CURSES_H)
# include <curses.h>
#endif
],
[printw((const char *)"Test");]
)],
[AC_MSG_RESULT([yes])],
[
AC_MSG_RESULT([no])
AC_MSG_WARN(m4_normalize([Disabling curses because the printw()
function of your (n)curses library is old.
If you wish to enable curses, update to a
newer version (ncurses 5.4 or later is
recommended, available from
https://invisible-island.net/ncurses/)
]))
AC_DEFINE([HAVE_INCOMPATIBLE_PRINTW], [1],
[Define to 1 if curses library has incompatible printw()])
]
)
LIBS=$ac_save_LIBS
cc_restore_flags
])
AC_SUBST(CURSESLIBS)
AC_SUBST(PC_NAME_CURSES)
AC_SUBST(PC_LIBS_CURSES)
dnl ========================================================================
dnl Profiling and GProf
dnl ========================================================================
CFLAGS_ORIG="$CFLAGS"
AS_IF([test $with_coverage -ne $DISABLED],
[
with_profiling=$REQUIRED
PCMK_FEATURES="$PCMK_FEATURES coverage"
CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
dnl During linking, make sure to specify -lgcov or -coverage
]
)
AS_IF([test $with_profiling -ne $DISABLED],
[
with_profiling=$REQUIRED
PCMK_FEATURES="$PCMK_FEATURES profile"
dnl Disable various compiler optimizations
CFLAGS="$CFLAGS -fno-omit-frame-pointer -fno-inline -fno-builtin"
dnl CFLAGS="$CFLAGS -fno-inline-functions"
dnl CFLAGS="$CFLAGS -fno-default-inline"
dnl CFLAGS="$CFLAGS -fno-inline-functions-called-once"
dnl CFLAGS="$CFLAGS -fno-optimize-sibling-calls"
dnl Turn off optimization so tools can get accurate line numbers
CFLAGS=`echo $CFLAGS | sed \
-e 's/-O.\ //g' \
-e 's/-Wp,-D_FORTIFY_SOURCE=.\ //g' \
-e 's/-D_FORTIFY_SOURCE=.\ //g'`
CFLAGS="$CFLAGS -O0 -g3 -gdwarf-2"
AC_MSG_NOTICE([CFLAGS before adding profiling options: $CFLAGS_ORIG])
AC_MSG_NOTICE([CFLAGS after: $CFLAGS])
]
)
AC_DEFINE_UNQUOTED([SUPPORT_PROFILING], [$with_profiling], [Support profiling])
AM_CONDITIONAL([BUILD_PROFILING], [test "$with_profiling" = "$REQUIRED"])
dnl ========================================================================
dnl Cluster infrastructure - LibQB
dnl ========================================================================
PKG_CHECK_MODULES(libqb, libqb >= 0.17)
CPPFLAGS="$libqb_CFLAGS $CPPFLAGS"
LIBS="$libqb_LIBS $LIBS"
+dnl libqb libqb-2.0.3 + ipc-connect-async-API (2022-01)
+AC_CHECK_FUNCS([qb_ipcc_connect_async])
+
dnl libqb 2.0.2+ (2020-10)
AC_CHECK_FUNCS(qb_ipcc_auth_get,
AC_DEFINE(HAVE_IPCC_AUTH_GET, 1,
[Have qb_ipcc_auth_get function]))
dnl libqb 2.0.0+ (2020-05)
CHECK_ENUM_VALUE([qb/qblog.h],[qb_log_conf],[QB_LOG_CONF_MAX_LINE_LEN])
CHECK_ENUM_VALUE([qb/qblog.h],[qb_log_conf],[QB_LOG_CONF_ELLIPSIS])
dnl Support Linux-HA fence agents if available
if test "$cross_compiling" != "yes"; then
CPPFLAGS="$CPPFLAGS -I${prefix}/include/heartbeat"
fi
AC_CHECK_HEADERS([stonith/stonith.h],
[
AC_CHECK_LIB([pils], [PILLoadPlugin])
AC_CHECK_LIB([plumb], [G_main_add_IPC_Channel])
PCMK_FEATURES="$PCMK_FEATURES lha"
])
AM_CONDITIONAL([BUILD_LHA_SUPPORT], [test "$ac_cv_header_stonith_stonith_h" = "yes"])
dnl ===============================================
dnl Variables needed for substitution
dnl ===============================================
CRM_SCHEMA_DIRECTORY="${datadir}/pacemaker"
AC_DEFINE_UNQUOTED(CRM_SCHEMA_DIRECTORY,"$CRM_SCHEMA_DIRECTORY", Location for the Pacemaker Relax-NG Schema)
AC_SUBST(CRM_SCHEMA_DIRECTORY)
CRM_CORE_DIR="${localstatedir}/lib/pacemaker/cores"
AC_DEFINE_UNQUOTED([CRM_CORE_DIR], ["$CRM_CORE_DIR"],
[Directory Pacemaker daemons should change to (without systemd, core files will go here)])
AC_SUBST(CRM_CORE_DIR)
if test x"${CRM_DAEMON_USER}" = x""; then
CRM_DAEMON_USER="hacluster"
fi
AC_DEFINE_UNQUOTED(CRM_DAEMON_USER,"$CRM_DAEMON_USER", User to run Pacemaker daemons as)
AC_SUBST(CRM_DAEMON_USER)
if test x"${CRM_DAEMON_GROUP}" = x""; then
CRM_DAEMON_GROUP="haclient"
fi
AC_DEFINE_UNQUOTED(CRM_DAEMON_GROUP,"$CRM_DAEMON_GROUP", Group to run Pacemaker daemons as)
AC_SUBST(CRM_DAEMON_GROUP)
CRM_PACEMAKER_DIR=${localstatedir}/lib/pacemaker
AC_DEFINE_UNQUOTED(CRM_PACEMAKER_DIR,"$CRM_PACEMAKER_DIR", Location to store directory produced by Pacemaker daemons)
AC_SUBST(CRM_PACEMAKER_DIR)
CRM_BLACKBOX_DIR=${localstatedir}/lib/pacemaker/blackbox
AC_DEFINE_UNQUOTED(CRM_BLACKBOX_DIR,"$CRM_BLACKBOX_DIR", Where to keep blackbox dumps)
AC_SUBST(CRM_BLACKBOX_DIR)
PE_STATE_DIR="${localstatedir}/lib/pacemaker/pengine"
AC_DEFINE_UNQUOTED(PE_STATE_DIR,"$PE_STATE_DIR", Where to keep scheduler outputs)
AC_SUBST(PE_STATE_DIR)
CRM_CONFIG_DIR="${localstatedir}/lib/pacemaker/cib"
AC_DEFINE_UNQUOTED(CRM_CONFIG_DIR,"$CRM_CONFIG_DIR", Where to keep configuration files)
AC_SUBST(CRM_CONFIG_DIR)
CRM_CONFIG_CTS="${localstatedir}/lib/pacemaker/cts"
AC_DEFINE_UNQUOTED(CRM_CONFIG_CTS,"$CRM_CONFIG_CTS", Where to keep cts stateful data)
AC_SUBST(CRM_CONFIG_CTS)
CRM_DAEMON_DIR="${libexecdir}/pacemaker"
AC_DEFINE_UNQUOTED(CRM_DAEMON_DIR,"$CRM_DAEMON_DIR", Location for Pacemaker daemons)
AC_SUBST(CRM_DAEMON_DIR)
CRM_STATE_DIR="${runstatedir}/crm"
AC_DEFINE_UNQUOTED([CRM_STATE_DIR], ["$CRM_STATE_DIR"],
[Where to keep state files and sockets])
AC_SUBST(CRM_STATE_DIR)
CRM_RSCTMP_DIR="${runstatedir}/resource-agents"
AC_DEFINE_UNQUOTED(CRM_RSCTMP_DIR,"$CRM_RSCTMP_DIR", Where resource agents should keep state files)
AC_SUBST(CRM_RSCTMP_DIR)
PACEMAKER_CONFIG_DIR="${sysconfdir}/pacemaker"
AC_DEFINE_UNQUOTED(PACEMAKER_CONFIG_DIR,"$PACEMAKER_CONFIG_DIR", Where to keep configuration files like authkey)
AC_SUBST(PACEMAKER_CONFIG_DIR)
AC_DEFINE_UNQUOTED(SBIN_DIR,"$sbindir",[Location for system binaries])
AC_PATH_PROGS(GIT, git false)
AC_MSG_CHECKING([build version])
BUILD_VERSION=$Format:%h$
if test $BUILD_VERSION != ":%h$"; then
AC_MSG_RESULT([$BUILD_VERSION (archive hash)])
elif test -x $GIT && test -d .git; then
BUILD_VERSION=`$GIT log --pretty="format:%h" -n 1`
AC_MSG_RESULT([$BUILD_VERSION (git hash)])
else
# The current directory name make a reasonable default
# Most generated archives will include the hash or tag
BASE=`basename $PWD`
BUILD_VERSION=`echo $BASE | sed s:.*[[Pp]]acemaker-::`
AC_MSG_RESULT([$BUILD_VERSION (directory name)])
fi
AC_DEFINE_UNQUOTED(BUILD_VERSION, "$BUILD_VERSION", Build version)
AC_SUBST(BUILD_VERSION)
HAVE_dbus=1
PKG_CHECK_MODULES([DBUS], [dbus-1],
[CPPFLAGS="${CPPFLAGS} ${DBUS_CFLAGS}"],
[HAVE_dbus=0])
AC_DEFINE_UNQUOTED(SUPPORT_DBUS, $HAVE_dbus, Support dbus)
AM_CONDITIONAL(BUILD_DBUS, test $HAVE_dbus = 1)
AC_CHECK_TYPES([DBusBasicValue],,,[[#include <dbus/dbus.h>]])
if test $HAVE_dbus = 0; then
PC_NAME_DBUS=""
else
PC_NAME_DBUS="dbus-1"
fi
AC_SUBST(PC_NAME_DBUS)
AS_CASE([$enable_systemd],
[$REQUIRED], [
AS_IF([test $HAVE_dbus = 0],
[AC_MSG_FAILURE([Cannot support systemd resources without DBus])])
AS_IF([test "$ac_cv_have_decl_CLOCK_MONOTONIC" = "no"],
[AC_MSG_FAILURE([Cannot support systemd resources without monotonic clock])])
AS_IF([check_systemdsystemunitdir], [],
[AC_MSG_FAILURE([Cannot support systemd resources without systemdsystemunitdir])])
],
[$OPTIONAL], [
AS_IF([test $HAVE_dbus = 0 \
|| test "$ac_cv_have_decl_CLOCK_MONOTONIC" = "no"],
[enable_systemd=$DISABLED],
[
AC_MSG_CHECKING([for systemd version (using dbus-send)])
ret=$({ dbus-send --system --print-reply \
--dest=org.freedesktop.systemd1 \
/org/freedesktop/systemd1 \
org.freedesktop.DBus.Properties.Get \
string:org.freedesktop.systemd1.Manager \
string:Version 2>/dev/null \
|| echo "version unavailable"; } | tail -n1)
# sanitize output a bit (interested just in value, not type),
# ret is intentionally unenquoted so as to normalize whitespace
ret=$(echo ${ret} | cut -d' ' -f2-)
AC_MSG_RESULT([${ret}])
AS_IF([test "$ret" != "unavailable" \
|| systemctl --version 2>/dev/null | grep -q systemd],
[
AS_IF([check_systemdsystemunitdir],
[enable_systemd=$REQUIRED],
[enable_systemd=$DISABLED])
],
[enable_systemd=$DISABLED]
)
])
],
)
AC_MSG_CHECKING([whether to enable support for managing resources via systemd])
AS_IF([test $enable_systemd -eq $DISABLED], [AC_MSG_RESULT([no])],
[
AC_MSG_RESULT([yes])
PCMK_FEATURES="$PCMK_FEATURES systemd"
]
)
AC_SUBST([systemdsystemunitdir])
AC_DEFINE_UNQUOTED([SUPPORT_SYSTEMD], [$enable_systemd],
[Support systemd resources])
AM_CONDITIONAL([BUILD_SYSTEMD], [test $enable_systemd = $REQUIRED])
AC_SUBST(SUPPORT_SYSTEMD)
AS_CASE([$enable_upstart],
[$REQUIRED], [
AS_IF([test $HAVE_dbus = 0],
[AC_MSG_FAILURE([Cannot support Upstart resources without DBus])])
],
[$OPTIONAL], [
AS_IF([test $HAVE_dbus = 0], [enable_upstart=$DISABLED],
[
AC_MSG_CHECKING([for Upstart version (using dbus-send)])
ret=$({ dbus-send --system --print-reply \
--dest=com.ubuntu.Upstart \
/com/ubuntu/Upstart org.freedesktop.DBus.Properties.Get \
string:com.ubuntu.Upstart0_6 string:version 2>/dev/null \
|| echo "version unavailable"; } | tail -n1)
# sanitize output a bit (interested just in value, not type),
# ret is intentionally unenquoted so as to normalize whitespace
ret=$(echo ${ret} | cut -d' ' -f2-)
AC_MSG_RESULT([${ret}])
AS_IF([test "$ret" != "unavailable" \
|| initctl --version 2>/dev/null | grep -q upstart],
[enable_upstart=$REQUIRED],
[enable_upstart=$DISABLED]
)
])
],
)
AC_MSG_CHECKING([whether to enable support for managing resources via Upstart])
AS_IF([test $enable_upstart -eq $DISABLED], [AC_MSG_RESULT([no])],
[
AC_MSG_RESULT([yes])
PCMK_FEATURES="$PCMK_FEATURES upstart"
]
)
AC_DEFINE_UNQUOTED([SUPPORT_UPSTART], [$enable_upstart],
[Support Upstart resources])
AM_CONDITIONAL([BUILD_UPSTART], [test $enable_upstart -eq $REQUIRED])
AC_SUBST(SUPPORT_UPSTART)
AS_CASE([$with_nagios],
[$REQUIRED], [
AS_IF([test "$ac_cv_have_decl_CLOCK_MONOTONIC" = "no"],
[AC_MSG_FAILURE([Cannot support nagios resources without monotonic clock])])
],
[$OPTIONAL], [
AS_IF([test "$ac_cv_have_decl_CLOCK_MONOTONIC" = "no"],
[with_nagios=$DISABLED], [with_nagios=$REQUIRED])
]
)
AS_IF([test $with_nagios -eq $REQUIRED], [PCMK_FEATURES="$PCMK_FEATURES nagios"])
AC_DEFINE_UNQUOTED([SUPPORT_NAGIOS], [$with_nagios], [Support nagios plugins])
AM_CONDITIONAL([BUILD_NAGIOS], [test $with_nagios -eq $REQUIRED])
if test x"$NAGIOS_PLUGIN_DIR" = x""; then
NAGIOS_PLUGIN_DIR="${libexecdir}/nagios/plugins"
fi
AC_DEFINE_UNQUOTED(NAGIOS_PLUGIN_DIR, "$NAGIOS_PLUGIN_DIR", Directory for nagios plugins)
AC_SUBST(NAGIOS_PLUGIN_DIR)
if test x"$NAGIOS_METADATA_DIR" = x""; then
NAGIOS_METADATA_DIR="${datadir}/nagios/plugins-metadata"
fi
AC_DEFINE_UNQUOTED(NAGIOS_METADATA_DIR, "$NAGIOS_METADATA_DIR", Directory for nagios plugins metadata)
AC_SUBST(NAGIOS_METADATA_DIR)
STACKS=""
CLUSTERLIBS=""
PC_NAME_CLUSTER=""
dnl ========================================================================
dnl Cluster stack - Corosync
dnl ========================================================================
COROSYNC_LIBS=""
AS_CASE([$with_corosync],
[$REQUIRED], [
# These will be fatal if unavailable
PKG_CHECK_MODULES([cpg], [libcpg])
PKG_CHECK_MODULES([cfg], [libcfg])
PKG_CHECK_MODULES([cmap], [libcmap])
PKG_CHECK_MODULES([quorum], [libquorum])
PKG_CHECK_MODULES([libcorosync_common], [libcorosync_common])
]
[$OPTIONAL], [
PKG_CHECK_MODULES([cpg], [libcpg], [], [with_corosync=$DISABLED])
PKG_CHECK_MODULES([cfg], [libcfg], [], [with_corosync=$DISABLED])
PKG_CHECK_MODULES([cmap], [libcmap], [], [with_corosync=$DISABLED])
PKG_CHECK_MODULES([quorum], [libquorum], [], [with_corosync=$DISABLED])
PKG_CHECK_MODULES([libcorosync_common], [libcorosync_common], [], [with_corosync=$DISABLED])
AS_IF([test $with_corosync -ne $DISABLED], [with_corosync=$REQUIRED])
]
)
AS_IF([test $with_corosync -ne $DISABLED],
[
AC_MSG_CHECKING([for Corosync 2 or later])
AC_MSG_RESULT([yes])
CFLAGS="$CFLAGS $libqb_CFLAGS $cpg_CFLAGS $cfg_CFLAGS $cmap_CFLAGS $quorum_CFLAGS $libcorosync_common_CFLAGS"
COROSYNC_LIBS="$COROSYNC_LIBS $cpg_LIBS $cfg_LIBS $cmap_LIBS $quorum_LIBS $libcorosync_common_LIBS"
CLUSTERLIBS="$CLUSTERLIBS $COROSYNC_LIBS"
PC_NAME_CLUSTER="$PC_CLUSTER_NAME libcfg libcmap libcorosync_common libcpg libquorum"
STACKS="$STACKS corosync-ge-2"
dnl Shutdown tracking added (back) to corosync Jan 2021
saved_LIBS="$LIBS"
LIBS="$LIBS $COROSYNC_LIBS"
AC_CHECK_FUNCS(corosync_cfg_trackstart,
AC_DEFINE(HAVE_COROSYNC_CFG_TRACKSTART, 1,
[Have corosync_cfg_trackstart function]))
LIBS="$saved_LIBS"
]
)
AC_DEFINE_UNQUOTED([SUPPORT_COROSYNC], [$with_corosync],
[Support the Corosync messaging and membership layer])
AM_CONDITIONAL([BUILD_CS_SUPPORT], [test $with_corosync -eq $REQUIRED])
AC_SUBST([SUPPORT_COROSYNC])
dnl
dnl Cluster stack - Sanity
dnl
AS_IF([test "x$STACKS" != "x"], [AC_MSG_NOTICE([Supported stacks:${STACKS}])],
[AC_MSG_FAILURE([At least one cluster stack must be supported])])
PCMK_FEATURES="${PCMK_FEATURES}${STACKS}"
AC_SUBST(CLUSTERLIBS)
AC_SUBST(PC_NAME_CLUSTER)
dnl ========================================================================
dnl CIB secrets
dnl ========================================================================
AS_IF([test $with_cibsecrets -ne $DISABLED],
[
with_cibsecrets=$REQUIRED
PCMK_FEATURES="$PCMK_FEATURES cibsecrets"
LRM_CIBSECRETS_DIR="${localstatedir}/lib/pacemaker/lrm/secrets"
AC_DEFINE_UNQUOTED([LRM_CIBSECRETS_DIR], ["$LRM_CIBSECRETS_DIR"],
[Location for CIB secrets])
AC_SUBST([LRM_CIBSECRETS_DIR])
]
)
AC_DEFINE_UNQUOTED([SUPPORT_CIBSECRETS], [$with_cibsecrets], [Support CIB secrets])
AM_CONDITIONAL([BUILD_CIBSECRETS], [test $with_cibsecrets -eq $REQUIRED])
dnl ========================================================================
dnl GnuTLS
dnl ========================================================================
dnl Require GnuTLS >=2.12.0 (2011-03) for Pacemaker Remote support
PC_NAME_GNUTLS=""
AS_CASE([$with_gnutls],
[$REQUIRED], [
REQUIRE_LIB([gnutls], [gnutls_sec_param_to_pk_bits])
REQUIRE_HEADER([gnutls/gnutls.h])
],
[$OPTIONAL], [
AC_CHECK_LIB([gnutls], [gnutls_sec_param_to_pk_bits],
[], [with_gnutls=$DISABLED])
AC_CHECK_HEADERS([gnutls/gnutls.h], [], [with_gnutls=$DISABLED])
]
)
AS_IF([test $with_gnutls -ne $DISABLED],
[
PC_NAME_GNUTLS="gnutls"
PCMK_FEATURES="$PCMK_FEATURES remote"
]
)
AC_SUBST([PC_NAME_GNUTLS])
AM_CONDITIONAL([BUILD_REMOTE], [test $with_gnutls -ne $DISABLED])
dnl ========================================================================
dnl System Health
dnl ========================================================================
dnl Check if servicelog development package is installed
SERVICELOG=servicelog-1
SERVICELOG_EXISTS="no"
AC_MSG_CHECKING([for $SERVICELOG packages])
if
$PKG_CONFIG --exists $SERVICELOG
then
PKG_CHECK_MODULES([SERVICELOG], [servicelog-1])
SERVICELOG_EXISTS="yes"
PCMK_FEATURES="$PCMK_FEATURES servicelog"
fi
AC_MSG_RESULT([$SERVICELOG_EXISTS])
AM_CONDITIONAL(BUILD_SERVICELOG, test "$SERVICELOG_EXISTS" = "yes")
dnl Check if OpenIMPI packages and servicelog are installed
OPENIPMI="OpenIPMI OpenIPMIposix"
OPENIPMI_SERVICELOG_EXISTS="no"
AC_MSG_CHECKING([for $SERVICELOG $OPENIPMI packages])
if
$PKG_CONFIG --exists $OPENIPMI $SERVICELOG
then
PKG_CHECK_MODULES([OPENIPMI_SERVICELOG],[OpenIPMI OpenIPMIposix])
REQUIRE_HEADER([malloc.h])
OPENIPMI_SERVICELOG_EXISTS="yes"
PCMK_FEATURES="$PCMK_FEATURES ipmiservicelogd"
fi
AC_MSG_RESULT([$OPENIPMI_SERVICELOG_EXISTS])
AM_CONDITIONAL(BUILD_OPENIPMI_SERVICELOG, test "$OPENIPMI_SERVICELOG_EXISTS" = "yes")
# --- ASAN/UBSAN/TSAN (see man gcc) ---
# when using SANitizers, we need to pass the -fsanitize..
# to both CFLAGS and LDFLAGS. The CFLAGS/LDFLAGS must be
# specified as first in the list or there will be runtime
# issues (for example user has to LD_PRELOAD asan for it to work
# properly).
AS_IF([test -n "${SANITIZERS}"], [
SANITIZERS=$(echo $SANITIZERS | sed -e 's/,/ /g')
for SANITIZER in $SANITIZERS
do
AS_CASE([$SANITIZER],
[asan|ASAN], [
SANITIZERS_CFLAGS="$SANITIZERS_CFLAGS -fsanitize=address"
SANITIZERS_LDFLAGS="$SANITIZERS_LDFLAGS -fsanitize=address -lasan"
PCMK_FEATURES="$PCMK_FEATURES asan"
REQUIRE_LIB([asan],[main])
],
[ubsan|UBSAN], [
SANITIZERS_CFLAGS="$SANITIZERS_CFLAGS -fsanitize=undefined"
SANITIZERS_LDFLAGS="$SANITIZERS_LDFLAGS -fsanitize=undefined -lubsan"
PCMK_FEATURES="$PCMK_FEATURES ubsan"
REQUIRE_LIB([ubsan],[main])
],
[tsan|TSAN], [
SANITIZERS_CFLAGS="$SANITIZERS_CFLAGS -fsanitize=thread"
SANITIZERS_LDFLAGS="$SANITIZERS_LDFLAGS -fsanitize=thread -ltsan"
PCMK_FEATURES="$PCMK_FEATURES tsan"
REQUIRE_LIB([tsan],[main])
])
done
])
dnl ========================================================================
dnl Compiler flags
dnl ========================================================================
dnl Make sure that CFLAGS is not exported. If the user did
dnl not have CFLAGS in their environment then this should have
dnl no effect. However if CFLAGS was exported from the user's
dnl environment, then the new CFLAGS will also be exported
dnl to sub processes.
if export | fgrep " CFLAGS=" > /dev/null; then
SAVED_CFLAGS="$CFLAGS"
unset CFLAGS
CFLAGS="$SAVED_CFLAGS"
unset SAVED_CFLAGS
fi
CC_EXTRAS=""
AS_IF([test "$GCC" != yes], [CFLAGS="$CFLAGS -g"], [
CFLAGS="$CFLAGS -ggdb"
dnl When we don't have diagnostic push / pull, we can't explicitly disable
dnl checking for nonliteral formats in the places where they occur on purpose
dnl thus we disable nonliteral format checking globally as we are aborting
dnl on warnings.
dnl what makes the things really ugly is that nonliteral format checking is
dnl obviously available as an extra switch in very modern gcc but for older
dnl gcc this is part of -Wformat=2
dnl so if we have push/pull we can enable -Wformat=2 -Wformat-nonliteral
dnl if we don't have push/pull but -Wformat-nonliteral we can enable -Wformat=2
dnl otherwise none of both
gcc_diagnostic_push_pull=no
cc_temp_flags "$CFLAGS $WERROR"
AC_MSG_CHECKING([for gcc diagnostic push / pull])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#pragma GCC diagnostic push
#pragma GCC diagnostic pop
]])],
[
AC_MSG_RESULT([yes])
gcc_diagnostic_push_pull=yes
], AC_MSG_RESULT([no]))
cc_restore_flags
AS_IF([cc_supports_flag "-Wformat-nonliteral"],
[gcc_format_nonliteral=yes],
[gcc_format_nonliteral=no])
# We had to eliminate -Wnested-externs because of libtool changes
# Make sure to order options so that the former stand for prerequisites
# of the latter (e.g., -Wformat-nonliteral requires -Wformat).
EXTRA_FLAGS="-fgnu89-inline"
EXTRA_FLAGS="$EXTRA_FLAGS -Wall"
EXTRA_FLAGS="$EXTRA_FLAGS -Waggregate-return"
EXTRA_FLAGS="$EXTRA_FLAGS -Wbad-function-cast"
EXTRA_FLAGS="$EXTRA_FLAGS -Wcast-align"
EXTRA_FLAGS="$EXTRA_FLAGS -Wdeclaration-after-statement"
EXTRA_FLAGS="$EXTRA_FLAGS -Wendif-labels"
EXTRA_FLAGS="$EXTRA_FLAGS -Wfloat-equal"
EXTRA_FLAGS="$EXTRA_FLAGS -Wformat-security"
EXTRA_FLAGS="$EXTRA_FLAGS -Wmissing-prototypes"
EXTRA_FLAGS="$EXTRA_FLAGS -Wmissing-declarations"
EXTRA_FLAGS="$EXTRA_FLAGS -Wnested-externs"
EXTRA_FLAGS="$EXTRA_FLAGS -Wno-long-long"
EXTRA_FLAGS="$EXTRA_FLAGS -Wno-strict-aliasing"
EXTRA_FLAGS="$EXTRA_FLAGS -Wpointer-arith"
EXTRA_FLAGS="$EXTRA_FLAGS -Wstrict-prototypes"
EXTRA_FLAGS="$EXTRA_FLAGS -Wwrite-strings"
EXTRA_FLAGS="$EXTRA_FLAGS -Wunused-but-set-variable"
EXTRA_FLAGS="$EXTRA_FLAGS -Wunsigned-char"
AS_IF([test "x$gcc_diagnostic_push_pull" = "xyes"],
[
AC_DEFINE([GCC_FORMAT_NONLITERAL_CHECKING_ENABLED], [],
[gcc can complain about nonliterals in format])
EXTRA_FLAGS="$EXTRA_FLAGS -Wformat=2 -Wformat-nonliteral"
],
[test "x$gcc_format_nonliteral" = "xyes"],
[EXTRA_FLAGS="$EXTRA_FLAGS -Wformat=2"])
# Additional warnings it might be nice to enable one day
# -Wshadow
# -Wunreachable-code
for j in $EXTRA_FLAGS
do
AS_IF([cc_supports_flag $CC_EXTRAS $j], [CC_EXTRAS="$CC_EXTRAS $j"])
done
AC_MSG_NOTICE([Using additional gcc flags: ${CC_EXTRAS}])
])
dnl
dnl Hardening flags
dnl
dnl The prime control of whether to apply (targeted) hardening build flags and
dnl which ones is --{enable,disable}-hardening option passed to ./configure:
dnl
dnl --enable-hardening=try (default):
dnl depending on whether any of CFLAGS_HARDENED_EXE, LDFLAGS_HARDENED_EXE,
dnl CFLAGS_HARDENED_LIB or LDFLAGS_HARDENED_LIB environment variables
dnl (see below) is set and non-null, all these custom flags (even if not
dnl set) are used as are, otherwise the best effort is made to offer
dnl reasonably strong hardening in several categories (RELRO, PIE,
dnl "bind now", stack protector) according to what the selected toolchain
dnl can offer
dnl
dnl --enable-hardening:
dnl same effect as --enable-hardening=try when the environment variables
dnl in question are suppressed
dnl
dnl --disable-hardening:
dnl do not apply any targeted hardening measures at all
dnl
dnl The user-injected environment variables that regulate the hardening in
dnl default case are as follows:
dnl
dnl * CFLAGS_HARDENED_EXE, LDFLAGS_HARDENED_EXE
dnl compiler and linker flags (respectively) for daemon programs
dnl (pacemakerd, pacemaker-attrd, pacemaker-controld, pacemaker-execd,
dnl pacemaker-based, pacemaker-fenced, pacemaker-remoted,
dnl pacemaker-schedulerd)
dnl
dnl * CFLAGS_HARDENED_LIB, LDFLAGS_HARDENED_LIB
dnl compiler and linker flags (respectively) for libraries linked
dnl with the daemon programs
dnl
dnl Note that these are purposedly targeted variables (addressing particular
dnl targets all over the scattered Makefiles) and have no effect outside of
dnl the predestined scope (e.g., CLI utilities). For a global reach,
dnl use CFLAGS, LDFLAGS, etc. as usual.
dnl
dnl For guidance on the suitable flags consult, for instance:
dnl https://fedoraproject.org/wiki/Changes/Harden_All_Packages#Detailed_Harden_Flags_Description
dnl https://owasp.org/index.php/C-Based_Toolchain_Hardening#GCC.2FBinutils
dnl
AS_IF([test $enable_hardening -eq $OPTIONAL],
[
AS_IF([test "$(env | grep -Ec '^(C|LD)FLAGS_HARDENED_(EXE|LIB)=.')" = 0],
[enable_hardening=$REQUIRED],
[AC_MSG_NOTICE([Hardening: using custom flags from environment])]
)
],
[
unset CFLAGS_HARDENED_EXE
unset CFLAGS_HARDENED_LIB
unset LDFLAGS_HARDENED_EXE
unset LDFLAGS_HARDENED_LIB
]
)
AS_CASE([$enable_hardening],
[$DISABLED], [AC_MSG_NOTICE([Hardening: explicitly disabled])],
[$REQUIRED], [
CFLAGS_HARDENED_EXE=
CFLAGS_HARDENED_LIB=
LDFLAGS_HARDENED_EXE=
LDFLAGS_HARDENED_LIB=
relro=0
pie=0
bindnow=0
stackprot="none"
# daemons incl. libs: partial RELRO
flag="-Wl,-z,relro"
CC_CHECK_LDFLAGS(["${flag}"],
[
LDFLAGS_HARDENED_EXE="${LDFLAGS_HARDENED_EXE} ${flag}"
LDFLAGS_HARDENED_LIB="${LDFLAGS_HARDENED_LIB} ${flag}"
relro=1
])
# daemons: PIE for both CFLAGS and LDFLAGS
AS_IF([cc_supports_flag -fPIE],
[
flag="-pie"
CC_CHECK_LDFLAGS(["${flag}"],
[
CFLAGS_HARDENED_EXE="${CFLAGS_HARDENED_EXE} -fPIE"
LDFLAGS_HARDENED_EXE="${LDFLAGS_HARDENED_EXE} ${flag}"
pie=1
])
]
)
# daemons incl. libs: full RELRO if sensible + as-needed linking
# so as to possibly mitigate startup performance
# hit caused by excessive linking with unneeded
# libraries
AS_IF([test "${relro}" = 1 && test "${pie}" = 1],
[
flag="-Wl,-z,now"
CC_CHECK_LDFLAGS(["${flag}"],
[
LDFLAGS_HARDENED_EXE="${LDFLAGS_HARDENED_EXE} ${flag}"
LDFLAGS_HARDENED_LIB="${LDFLAGS_HARDENED_LIB} ${flag}"
bindnow=1
])
]
)
AS_IF([test "${bindnow}" = 1],
[
flag="-Wl,--as-needed"
CC_CHECK_LDFLAGS(["${flag}"],
[
LDFLAGS_HARDENED_EXE="${LDFLAGS_HARDENED_EXE} ${flag}"
LDFLAGS_HARDENED_LIB="${LDFLAGS_HARDENED_LIB} ${flag}"
])
])
# universal: prefer strong > all > default stack protector if possible
flag=
AS_IF([cc_supports_flag -fstack-protector-strong],
[
flag="-fstack-protector-strong"
stackprot="strong"
],
[cc_supports_flag -fstack-protector-all],
[
flag="-fstack-protector-all"
stackprot="all"
],
[cc_supports_flag -fstack-protector],
[
flag="-fstack-protector"
stackprot="default"
]
)
AS_IF([test -n "${flag}"], [CC_EXTRAS="${CC_EXTRAS} ${flag}"])
# universal: enable stack clash protection if possible
AS_IF([cc_supports_flag -fstack-clash-protection],
[
CC_EXTRAS="${CC_EXTRAS} -fstack-clash-protection"
AS_IF([test "${stackprot}" = "none"],
[stackprot="clash-only"],
[stackprot="${stackprot}+clash"]
)
]
)
# Log a summary
AS_IF([test "${relro}" = 1 || test "${pie}" = 1 || test "${stackprot}" != "none"],
[AC_MSG_NOTICE(m4_normalize([Hardening:
relro=${relro}
pie=${pie}
bindnow=${bindnow}
stackprot=${stackprot}]))
],
[AC_MSG_WARN([Hardening: no suitable features in the toolchain detected])]
)
],
)
CFLAGS="$SANITIZERS_CFLAGS $CFLAGS $CC_EXTRAS"
LDFLAGS="$SANITIZERS_LDFLAGS $LDFLAGS"
CFLAGS_HARDENED_EXE="$SANITIZERS_CFLAGS $CFLAGS_HARDENED_EXE"
LDFLAGS_HARDENED_EXE="$SANITIZERS_LDFLAGS $LDFLAGS_HARDENED_EXE"
NON_FATAL_CFLAGS="$CFLAGS"
AC_SUBST(NON_FATAL_CFLAGS)
dnl
dnl We reset CFLAGS to include our warnings *after* all function
dnl checking goes on, so that our warning flags don't keep the
dnl AC_*FUNCS() calls above from working. In particular, -Werror will
dnl *always* cause us troubles if we set it before here.
dnl
dnl
AS_IF([test $enable_fatal_warnings -ne $DISABLED], [
AC_MSG_NOTICE([Enabling fatal compiler warnings])
CFLAGS="$CFLAGS $WERROR"
])
AC_SUBST(CFLAGS)
dnl This is useful for use in Makefiles that need to remove one specific flag
CFLAGS_COPY="$CFLAGS"
AC_SUBST(CFLAGS_COPY)
AC_SUBST(LIBADD_DL) dnl extra flags for dynamic linking libraries
AC_SUBST(LOCALE)
dnl Options for cleaning up the compiler output
AS_IF([test $enable_quiet -ne $DISABLED],
[
AC_MSG_NOTICE([Suppressing make details])
QUIET_LIBTOOL_OPTS="--silent"
QUIET_MAKE_OPTS="-s" # POSIX compliant
],
[
QUIET_LIBTOOL_OPTS=""
QUIET_MAKE_OPTS=""
]
)
dnl Put the above variables to use
LIBTOOL="${LIBTOOL} --tag=CC \$(QUIET_LIBTOOL_OPTS)"
MAKEFLAGS="${MAKEFLAGS} ${QUIET_MAKE_OPTS}"
# Make features list available (sorted alphabetically, without leading space)
PCMK_FEATURES=`echo "$PCMK_FEATURES" | sed -e 's/^ //' -e 's/ /\n/g' | sort | xargs`
AC_DEFINE_UNQUOTED(CRM_FEATURES, "$PCMK_FEATURES", Set of enabled features)
AC_SUBST(PCMK_FEATURES)
AC_SUBST(CC)
AC_SUBST(MAKEFLAGS)
AC_SUBST(LIBTOOL)
AC_SUBST(QUIET_LIBTOOL_OPTS)
dnl Files we output that need to be executable
CONFIG_FILES_EXEC([cts/cts-cli],
[cts/cts-coverage],
[cts/cts-exec],
[cts/cts-fencing],
[cts/cts-regression],
[cts/cts-scheduler],
[cts/lxc_autogen.sh],
[cts/benchmark/clubench],
[cts/lab/CTSlab.py],
[cts/lab/OCFIPraTest.py],
[cts/lab/cluster_test],
[cts/lab/cts],
[cts/lab/cts-log-watcher],
[cts/support/LSBDummy],
[cts/support/cts-support],
[cts/support/fence_dummy],
[cts/support/pacemaker-cts-dummyd],
[daemons/fenced/fence_legacy],
[daemons/fenced/fence_watchdog],
[doc/abi-check],
[extra/resources/ClusterMon],
[extra/resources/HealthSMART],
[extra/resources/SysInfo],
[extra/resources/ifspeed],
[extra/resources/o2cb],
[maint/bumplibs],
[tools/crm_failcount],
[tools/crm_master],
[tools/crm_report],
[tools/crm_standby],
[tools/cibsecret],
[tools/pcmk_simtimes])
dnl Other files we output
AC_CONFIG_FILES(Makefile \
cts/Makefile \
cts/benchmark/Makefile \
cts/lab/Makefile \
cts/lab/CTSvars.py \
cts/scheduler/Makefile \
cts/scheduler/dot/Makefile \
cts/scheduler/exp/Makefile \
cts/scheduler/scores/Makefile \
cts/scheduler/stderr/Makefile \
cts/scheduler/summary/Makefile \
cts/scheduler/xml/Makefile \
cts/support/Makefile \
cts/support/pacemaker-cts-dummyd@.service \
daemons/Makefile \
daemons/attrd/Makefile \
daemons/based/Makefile \
daemons/controld/Makefile \
daemons/execd/Makefile \
daemons/execd/pacemaker_remote \
daemons/execd/pacemaker_remote.service \
daemons/fenced/Makefile \
daemons/pacemakerd/Makefile \
daemons/pacemakerd/pacemaker.service \
daemons/pacemakerd/pacemaker.upstart \
daemons/pacemakerd/pacemaker.combined.upstart \
daemons/schedulerd/Makefile \
devel/Makefile \
doc/Doxyfile \
doc/Makefile \
doc/sphinx/Makefile \
etc/Makefile \
etc/init.d/pacemaker \
etc/logrotate.d/pacemaker \
extra/Makefile \
extra/alerts/Makefile \
extra/resources/Makefile \
include/Makefile \
include/crm/Makefile \
include/crm/cib/Makefile \
include/crm/common/Makefile \
include/crm/cluster/Makefile \
include/crm/fencing/Makefile \
include/crm/pengine/Makefile \
include/pcmki/Makefile \
replace/Makefile \
lib/Makefile \
lib/libpacemaker.pc \
lib/pacemaker.pc \
lib/pacemaker-cib.pc \
lib/pacemaker-lrmd.pc \
lib/pacemaker-service.pc \
lib/pacemaker-pe_rules.pc \
lib/pacemaker-pe_status.pc \
lib/pacemaker-fencing.pc \
lib/pacemaker-cluster.pc \
lib/common/Makefile \
lib/common/tests/Makefile \
lib/common/tests/acl/Makefile \
lib/common/tests/agents/Makefile \
lib/common/tests/cmdline/Makefile \
lib/common/tests/flags/Makefile \
lib/common/tests/io/Makefile \
lib/common/tests/iso8601/Makefile \
lib/common/tests/nvpair/Makefile \
lib/common/tests/operations/Makefile \
lib/common/tests/results/Makefile \
lib/common/tests/strings/Makefile \
lib/common/tests/utils/Makefile \
lib/common/tests/xpath/Makefile \
lib/cluster/Makefile \
lib/cib/Makefile \
lib/gnu/Makefile \
lib/pacemaker/Makefile \
lib/pengine/Makefile \
lib/pengine/tests/Makefile \
lib/pengine/tests/rules/Makefile \
lib/fencing/Makefile \
lib/lrmd/Makefile \
lib/services/Makefile \
maint/Makefile \
rpm/Makefile \
tests/Makefile \
tools/Makefile \
tools/report.collector \
tools/report.common \
tools/crm_mon.service \
tools/crm_mon.upstart \
xml/Makefile \
xml/pacemaker-schemas.pc \
)
dnl Now process the entire list of files added by previous
dnl calls to AC_CONFIG_FILES()
AC_OUTPUT()
dnl *****************
dnl Configure summary
dnl *****************
AC_MSG_NOTICE([])
AC_MSG_NOTICE([$PACKAGE configuration:])
AC_MSG_NOTICE([ Version = ${VERSION} (Build: $BUILD_VERSION)])
AC_MSG_NOTICE([ Features = ${PCMK_FEATURES}])
AC_MSG_NOTICE([])
AC_MSG_NOTICE([ Prefix = ${prefix}])
AC_MSG_NOTICE([ Executables = ${sbindir}])
AC_MSG_NOTICE([ Man pages = ${mandir}])
AC_MSG_NOTICE([ Libraries = ${libdir}])
AC_MSG_NOTICE([ Header files = ${includedir}])
AC_MSG_NOTICE([ Arch-independent files = ${datadir}])
AC_MSG_NOTICE([ State information = ${localstatedir}])
AC_MSG_NOTICE([ System configuration = ${sysconfdir}])
AC_MSG_NOTICE([ OCF agents = ${OCF_ROOT_DIR}])
AC_MSG_NOTICE([])
AC_MSG_NOTICE([ HA group name = ${CRM_DAEMON_GROUP}])
AC_MSG_NOTICE([ HA user name = ${CRM_DAEMON_USER}])
AC_MSG_NOTICE([])
AC_MSG_NOTICE([ CFLAGS = ${CFLAGS}])
AC_MSG_NOTICE([ CFLAGS_HARDENED_EXE = ${CFLAGS_HARDENED_EXE}])
AC_MSG_NOTICE([ CFLAGS_HARDENED_LIB = ${CFLAGS_HARDENED_LIB}])
AC_MSG_NOTICE([ LDFLAGS_HARDENED_EXE = ${LDFLAGS_HARDENED_EXE}])
AC_MSG_NOTICE([ LDFLAGS_HARDENED_LIB = ${LDFLAGS_HARDENED_LIB}])
AC_MSG_NOTICE([ Libraries = ${LIBS}])
AC_MSG_NOTICE([ Stack Libraries = ${CLUSTERLIBS}])
AC_MSG_NOTICE([ Unix socket auth method = ${us_auth}])
diff --git a/lib/common/ipc_client.c b/lib/common/ipc_client.c
index c5afdf3a3d..417b9ef175 100644
--- a/lib/common/ipc_client.c
+++ b/lib/common/ipc_client.c
@@ -1,1471 +1,1493 @@
/*
* Copyright 2004-2022 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#if defined(US_AUTH_PEERCRED_UCRED) || defined(US_AUTH_PEERCRED_SOCKPEERCRED)
# ifdef US_AUTH_PEERCRED_UCRED
# ifndef _GNU_SOURCE
# define _GNU_SOURCE
# endif
# endif
# include <sys/socket.h>
#elif defined(US_AUTH_GETPEERUCRED)
# include <ucred.h>
#endif
#include <stdio.h>
#include <sys/types.h>
#include <errno.h>
#include <bzlib.h>
#include <crm/crm.h> /* indirectly: pcmk_err_generic */
#include <crm/msg_xml.h>
#include <crm/common/ipc.h>
#include <crm/common/ipc_internal.h>
#include "crmcommon_private.h"
/*!
* \brief Create a new object for using Pacemaker daemon IPC
*
* \param[out] api Where to store new IPC object
* \param[in] server Which Pacemaker daemon the object is for
*
* \return Standard Pacemaker result code
*
* \note The caller is responsible for freeing *api using pcmk_free_ipc_api().
* \note This is intended to supersede crm_ipc_new() but currently only
* supports the controller, pacemakerd, and schedulerd IPC API.
*/
int
pcmk_new_ipc_api(pcmk_ipc_api_t **api, enum pcmk_ipc_server server)
{
if (api == NULL) {
return EINVAL;
}
*api = calloc(1, sizeof(pcmk_ipc_api_t));
if (*api == NULL) {
return errno;
}
(*api)->server = server;
if (pcmk_ipc_name(*api, false) == NULL) {
pcmk_free_ipc_api(*api);
*api = NULL;
return EOPNOTSUPP;
}
(*api)->ipc_size_max = 0;
// Set server methods and max_size (if not default)
switch (server) {
case pcmk_ipc_attrd:
break;
case pcmk_ipc_based:
(*api)->ipc_size_max = 512 * 1024; // 512KB
break;
case pcmk_ipc_controld:
(*api)->cmds = pcmk__controld_api_methods();
break;
case pcmk_ipc_execd:
break;
case pcmk_ipc_fenced:
break;
case pcmk_ipc_pacemakerd:
(*api)->cmds = pcmk__pacemakerd_api_methods();
break;
case pcmk_ipc_schedulerd:
(*api)->cmds = pcmk__schedulerd_api_methods();
// @TODO max_size could vary by client, maybe take as argument?
(*api)->ipc_size_max = 5 * 1024 * 1024; // 5MB
break;
}
if ((*api)->cmds == NULL) {
pcmk_free_ipc_api(*api);
*api = NULL;
return ENOMEM;
}
(*api)->ipc = crm_ipc_new(pcmk_ipc_name(*api, false),
(*api)->ipc_size_max);
if ((*api)->ipc == NULL) {
pcmk_free_ipc_api(*api);
*api = NULL;
return ENOMEM;
}
// If daemon API has its own data to track, allocate it
if ((*api)->cmds->new_data != NULL) {
if ((*api)->cmds->new_data(*api) != pcmk_rc_ok) {
pcmk_free_ipc_api(*api);
*api = NULL;
return ENOMEM;
}
}
crm_trace("Created %s API IPC object", pcmk_ipc_name(*api, true));
return pcmk_rc_ok;
}
static void
free_daemon_specific_data(pcmk_ipc_api_t *api)
{
if ((api != NULL) && (api->cmds != NULL)) {
if ((api->cmds->free_data != NULL) && (api->api_data != NULL)) {
api->cmds->free_data(api->api_data);
api->api_data = NULL;
}
free(api->cmds);
api->cmds = NULL;
}
}
/*!
* \internal
* \brief Call an IPC API event callback, if one is registed
*
* \param[in] api IPC API connection
* \param[in] event_type The type of event that occurred
* \param[in] status Event status
* \param[in] event_data Event-specific data
*/
void
pcmk__call_ipc_callback(pcmk_ipc_api_t *api, enum pcmk_ipc_event event_type,
crm_exit_t status, void *event_data)
{
if ((api != NULL) && (api->cb != NULL)) {
api->cb(api, event_type, status, event_data, api->user_data);
}
}
/*!
* \internal
* \brief Clean up after an IPC disconnect
*
* \param[in] user_data IPC API connection that disconnected
*
* \note This function can be used as a main loop IPC destroy callback.
*/
static void
ipc_post_disconnect(gpointer user_data)
{
pcmk_ipc_api_t *api = user_data;
crm_info("Disconnected from %s IPC API", pcmk_ipc_name(api, true));
// Perform any daemon-specific handling needed
if ((api->cmds != NULL) && (api->cmds->post_disconnect != NULL)) {
api->cmds->post_disconnect(api);
}
// Call client's registered event callback
pcmk__call_ipc_callback(api, pcmk_ipc_event_disconnect, CRM_EX_DISCONNECT,
NULL);
/* If this is being called from a running main loop, mainloop_gio_destroy()
* will free ipc and mainloop_io immediately after calling this function.
* If this is called from a stopped main loop, these will leak, so the best
* practice is to close the connection before stopping the main loop.
*/
api->ipc = NULL;
api->mainloop_io = NULL;
if (api->free_on_disconnect) {
/* pcmk_free_ipc_api() has already been called, but did not free api
* or api->cmds because this function needed them. Do that now.
*/
free_daemon_specific_data(api);
crm_trace("Freeing IPC API object after disconnect");
free(api);
}
}
/*!
* \brief Free the contents of an IPC API object
*
* \param[in] api IPC API object to free
*/
void
pcmk_free_ipc_api(pcmk_ipc_api_t *api)
{
bool free_on_disconnect = false;
if (api == NULL) {
return;
}
crm_debug("Releasing %s IPC API", pcmk_ipc_name(api, true));
if (api->ipc != NULL) {
if (api->mainloop_io != NULL) {
/* We need to keep the api pointer itself around, because it is the
* user data for the IPC client destroy callback. That will be
* triggered by the pcmk_disconnect_ipc() call below, but it might
* happen later in the main loop (if still running).
*
* This flag tells the destroy callback to free the object. It can't
* do that unconditionally, because the application might call this
* function after a disconnect that happened by other means.
*/
free_on_disconnect = api->free_on_disconnect = true;
}
pcmk_disconnect_ipc(api); // Frees api if free_on_disconnect is true
}
if (!free_on_disconnect) {
free_daemon_specific_data(api);
crm_trace("Freeing IPC API object");
free(api);
}
}
/*!
* \brief Get the IPC name used with an IPC API connection
*
* \param[in] api IPC API connection
* \param[in] for_log If true, return human-friendly name instead of IPC name
*
* \return IPC API's human-friendly or connection name, or if none is available,
* "Pacemaker" if for_log is true and NULL if for_log is false
*/
const char *
pcmk_ipc_name(pcmk_ipc_api_t *api, bool for_log)
{
if (api == NULL) {
return for_log? "Pacemaker" : NULL;
}
switch (api->server) {
case pcmk_ipc_attrd:
return for_log? "attribute manager" : NULL /* T_ATTRD */;
case pcmk_ipc_based:
return for_log? "CIB manager" : NULL /* PCMK__SERVER_BASED_RW */;
case pcmk_ipc_controld:
return for_log? "controller" : CRM_SYSTEM_CRMD;
case pcmk_ipc_execd:
return for_log? "executor" : NULL /* CRM_SYSTEM_LRMD */;
case pcmk_ipc_fenced:
return for_log? "fencer" : NULL /* "stonith-ng" */;
case pcmk_ipc_pacemakerd:
return for_log? "launcher" : CRM_SYSTEM_MCP;
case pcmk_ipc_schedulerd:
return for_log? "scheduler" : CRM_SYSTEM_PENGINE;
default:
return for_log? "Pacemaker" : NULL;
}
}
/*!
* \brief Check whether an IPC API connection is active
*
* \param[in] api IPC API connection
*
* \return true if IPC is connected, false otherwise
*/
bool
pcmk_ipc_is_connected(pcmk_ipc_api_t *api)
{
return (api != NULL) && crm_ipc_connected(api->ipc);
}
/*!
* \internal
* \brief Call the daemon-specific API's dispatch function
*
* Perform daemon-specific handling of IPC reply dispatch. It is the daemon
* method's responsibility to call the client's registered event callback, as
* well as allocate and free any event data.
*
* \param[in] api IPC API connection
*/
static void
call_api_dispatch(pcmk_ipc_api_t *api, xmlNode *message)
{
crm_log_xml_trace(message, "ipc-received");
if ((api->cmds != NULL) && (api->cmds->dispatch != NULL)) {
api->cmds->dispatch(api, message);
}
}
/*!
* \internal
* \brief Dispatch data read from IPC source
*
* \param[in] buffer Data read from IPC
* \param[in] length Number of bytes of data in buffer (ignored)
* \param[in] user_data IPC object
*
* \return Always 0 (meaning connection is still required)
*
* \note This function can be used as a main loop IPC dispatch callback.
*/
static int
dispatch_ipc_data(const char *buffer, ssize_t length, gpointer user_data)
{
pcmk_ipc_api_t *api = user_data;
xmlNode *msg;
CRM_CHECK(api != NULL, return 0);
if (buffer == NULL) {
crm_warn("Empty message received from %s IPC",
pcmk_ipc_name(api, true));
return 0;
}
msg = string2xml(buffer);
if (msg == NULL) {
crm_warn("Malformed message received from %s IPC",
pcmk_ipc_name(api, true));
return 0;
}
call_api_dispatch(api, msg);
free_xml(msg);
return 0;
}
/*!
* \brief Check whether an IPC connection has data available (without main loop)
*
* \param[in] api IPC API connection
* \param[in] timeout_ms If less than 0, poll indefinitely; if 0, poll once
* and return immediately; otherwise, poll for up to
* this many milliseconds
*
* \return Standard Pacemaker return code
*
* \note Callers of pcmk_connect_ipc() using pcmk_ipc_dispatch_poll should call
* this function to check whether IPC data is available. Return values of
* interest include pcmk_rc_ok meaning data is available, and EAGAIN
* meaning no data is available; all other values indicate errors.
* \todo This does not allow the caller to poll multiple file descriptors at
* once. If there is demand for that, we could add a wrapper for
* crm_ipc_get_fd(api->ipc), so the caller can call poll() themselves.
*/
int
pcmk_poll_ipc(pcmk_ipc_api_t *api, int timeout_ms)
{
int rc;
struct pollfd pollfd = { 0, };
if ((api == NULL) || (api->dispatch_type != pcmk_ipc_dispatch_poll)) {
return EINVAL;
}
pollfd.fd = crm_ipc_get_fd(api->ipc);
pollfd.events = POLLIN;
rc = poll(&pollfd, 1, timeout_ms);
if (rc < 0) {
return errno;
} else if (rc == 0) {
return EAGAIN;
}
return pcmk_rc_ok;
}
/*!
* \brief Dispatch available messages on an IPC connection (without main loop)
*
* \param[in] api IPC API connection
*
* \return Standard Pacemaker return code
*
* \note Callers of pcmk_connect_ipc() using pcmk_ipc_dispatch_poll should call
* this function when IPC data is available.
*/
void
pcmk_dispatch_ipc(pcmk_ipc_api_t *api)
{
if (api == NULL) {
return;
}
while (crm_ipc_ready(api->ipc) > 0) {
if (crm_ipc_read(api->ipc) > 0) {
dispatch_ipc_data(crm_ipc_buffer(api->ipc), 0, api);
}
}
}
// \return Standard Pacemaker return code
static int
connect_with_main_loop(pcmk_ipc_api_t *api)
{
int rc;
struct ipc_client_callbacks callbacks = {
.dispatch = dispatch_ipc_data,
.destroy = ipc_post_disconnect,
};
rc = pcmk__add_mainloop_ipc(api->ipc, G_PRIORITY_DEFAULT, api,
&callbacks, &(api->mainloop_io));
if (rc != pcmk_rc_ok) {
return rc;
}
crm_debug("Connected to %s IPC (attached to main loop)",
pcmk_ipc_name(api, true));
/* After this point, api->mainloop_io owns api->ipc, so api->ipc
* should not be explicitly freed.
*/
return pcmk_rc_ok;
}
// \return Standard Pacemaker return code
static int
connect_without_main_loop(pcmk_ipc_api_t *api)
{
int rc;
if (!crm_ipc_connect(api->ipc)) {
rc = errno;
crm_ipc_close(api->ipc);
return rc;
}
crm_debug("Connected to %s IPC (without main loop)",
pcmk_ipc_name(api, true));
return pcmk_rc_ok;
}
/*!
* \brief Connect to a Pacemaker daemon via IPC
*
* \param[in] api IPC API instance
* \param[out] dispatch_type How IPC replies should be dispatched
*
* \return Standard Pacemaker return code
*/
int
pcmk_connect_ipc(pcmk_ipc_api_t *api, enum pcmk_ipc_dispatch dispatch_type)
{
int rc = pcmk_rc_ok;
if (api == NULL) {
crm_err("Cannot connect to uninitialized API object");
return EINVAL;
}
if (api->ipc == NULL) {
api->ipc = crm_ipc_new(pcmk_ipc_name(api, false),
api->ipc_size_max);
if (api->ipc == NULL) {
crm_err("Failed to re-create IPC API");
return ENOMEM;
}
}
if (crm_ipc_connected(api->ipc)) {
crm_trace("Already connected to %s IPC API", pcmk_ipc_name(api, true));
return pcmk_rc_ok;
}
api->dispatch_type = dispatch_type;
switch (dispatch_type) {
case pcmk_ipc_dispatch_main:
rc = connect_with_main_loop(api);
break;
case pcmk_ipc_dispatch_sync:
case pcmk_ipc_dispatch_poll:
rc = connect_without_main_loop(api);
break;
}
if (rc != pcmk_rc_ok) {
return rc;
}
if ((api->cmds != NULL) && (api->cmds->post_connect != NULL)) {
rc = api->cmds->post_connect(api);
if (rc != pcmk_rc_ok) {
crm_ipc_close(api->ipc);
}
}
return rc;
}
/*!
* \brief Disconnect an IPC API instance
*
* \param[in] api IPC API connection
*
* \return Standard Pacemaker return code
*
* \note If the connection is attached to a main loop, this function should be
* called before quitting the main loop, to ensure that all memory is
* freed.
*/
void
pcmk_disconnect_ipc(pcmk_ipc_api_t *api)
{
if ((api == NULL) || (api->ipc == NULL)) {
return;
}
switch (api->dispatch_type) {
case pcmk_ipc_dispatch_main:
{
mainloop_io_t *mainloop_io = api->mainloop_io;
// Make sure no code with access to api can use these again
api->mainloop_io = NULL;
api->ipc = NULL;
mainloop_del_ipc_client(mainloop_io);
// After this point api might have already been freed
}
break;
case pcmk_ipc_dispatch_poll:
case pcmk_ipc_dispatch_sync:
{
crm_ipc_t *ipc = api->ipc;
// Make sure no code with access to api can use ipc again
api->ipc = NULL;
// This should always be the case already, but to be safe
api->free_on_disconnect = false;
crm_ipc_destroy(ipc);
ipc_post_disconnect(api);
}
break;
}
}
/*!
* \brief Register a callback for IPC API events
*
* \param[in] api IPC API connection
* \param[in] callback Callback to register
* \param[in] userdata Caller data to pass to callback
*
* \note This function may be called multiple times to update the callback
* and/or user data. The caller remains responsible for freeing
* userdata in any case (after the IPC is disconnected, if the
* user data is still registered with the IPC).
*/
void
pcmk_register_ipc_callback(pcmk_ipc_api_t *api, pcmk_ipc_callback_t cb,
void *user_data)
{
if (api == NULL) {
return;
}
api->cb = cb;
api->user_data = user_data;
}
/*!
* \internal
* \brief Send an XML request across an IPC API connection
*
* \param[in] api IPC API connection
* \param[in] request XML request to send
*
* \return Standard Pacemaker return code
*
* \note Daemon-specific IPC API functions should call this function to send
* requests, because it handles different dispatch types appropriately.
*/
int
pcmk__send_ipc_request(pcmk_ipc_api_t *api, xmlNode *request)
{
int rc;
xmlNode *reply = NULL;
enum crm_ipc_flags flags = crm_ipc_flags_none;
if ((api == NULL) || (api->ipc == NULL) || (request == NULL)) {
return EINVAL;
}
crm_log_xml_trace(request, "ipc-sent");
// Synchronous dispatch requires waiting for a reply
if ((api->dispatch_type == pcmk_ipc_dispatch_sync)
&& (api->cmds != NULL)
&& (api->cmds->reply_expected != NULL)
&& (api->cmds->reply_expected(api, request))) {
flags = crm_ipc_client_response;
}
// The 0 here means a default timeout of 5 seconds
rc = crm_ipc_send(api->ipc, request, flags, 0, &reply);
if (rc < 0) {
return pcmk_legacy2rc(rc);
} else if (rc == 0) {
return ENODATA;
}
// With synchronous dispatch, we dispatch any reply now
if (reply != NULL) {
call_api_dispatch(api, reply);
free_xml(reply);
}
return pcmk_rc_ok;
}
/*!
* \internal
* \brief Create the XML for an IPC request to purge a node from the peer cache
*
* \param[in] api IPC API connection
* \param[in] node_name If not NULL, name of node to purge
* \param[in] nodeid If not 0, node ID of node to purge
*
* \return Newly allocated IPC request XML
*
* \note The controller, fencer, and pacemakerd use the same request syntax, but
* the attribute manager uses a different one. The CIB manager doesn't
* have any syntax for it. The executor and scheduler don't connect to the
* cluster layer and thus don't have or need any syntax for it.
*
* \todo Modify the attribute manager to accept the common syntax (as well
* as its current one, for compatibility with older clients). Modify
* the CIB manager to accept and honor the common syntax. Modify the
* executor and scheduler to accept the syntax (immediately returning
* success), just for consistency. Modify this function to use the
* common syntax with all daemons if their version supports it.
*/
static xmlNode *
create_purge_node_request(pcmk_ipc_api_t *api, const char *node_name,
uint32_t nodeid)
{
xmlNode *request = NULL;
const char *client = crm_system_name? crm_system_name : "client";
switch (api->server) {
case pcmk_ipc_attrd:
request = create_xml_node(NULL, __func__);
crm_xml_add(request, F_TYPE, T_ATTRD);
crm_xml_add(request, F_ORIG, crm_system_name);
crm_xml_add(request, PCMK__XA_TASK, PCMK__ATTRD_CMD_PEER_REMOVE);
crm_xml_add(request, PCMK__XA_ATTR_NODE_NAME, node_name);
if (nodeid > 0) {
crm_xml_add_int(request, PCMK__XA_ATTR_NODE_ID, (int) nodeid);
}
break;
case pcmk_ipc_controld:
case pcmk_ipc_fenced:
case pcmk_ipc_pacemakerd:
request = create_request(CRM_OP_RM_NODE_CACHE, NULL, NULL,
pcmk_ipc_name(api, false), client, NULL);
if (nodeid > 0) {
crm_xml_set_id(request, "%lu", (unsigned long) nodeid);
}
crm_xml_add(request, XML_ATTR_UNAME, node_name);
break;
case pcmk_ipc_based:
case pcmk_ipc_execd:
case pcmk_ipc_schedulerd:
break;
}
return request;
}
/*!
* \brief Ask a Pacemaker daemon to purge a node from its peer cache
*
* \param[in] api IPC API connection
* \param[in] node_name If not NULL, name of node to purge
* \param[in] nodeid If not 0, node ID of node to purge
*
* \return Standard Pacemaker return code
*
* \note At least one of node_name or nodeid must be specified.
*/
int
pcmk_ipc_purge_node(pcmk_ipc_api_t *api, const char *node_name, uint32_t nodeid)
{
int rc = 0;
xmlNode *request = NULL;
if (api == NULL) {
return EINVAL;
}
if ((node_name == NULL) && (nodeid == 0)) {
return EINVAL;
}
request = create_purge_node_request(api, node_name, nodeid);
if (request == NULL) {
return EOPNOTSUPP;
}
rc = pcmk__send_ipc_request(api, request);
free_xml(request);
crm_debug("%s peer cache purge of node %s[%lu]: rc=%d",
pcmk_ipc_name(api, true), node_name, (unsigned long) nodeid, rc);
return rc;
}
/*
* Generic IPC API (to eventually be deprecated as public API and made internal)
*/
struct crm_ipc_s {
struct pollfd pfd;
unsigned int max_buf_size; // maximum bytes we can send or receive over IPC
unsigned int buf_size; // size of allocated buffer
int msg_size;
int need_reply;
char *buffer;
char *server_name; // server IPC name being connected to
qb_ipcc_connection_t *ipc;
};
/*!
* \brief Create a new (legacy) object for using Pacemaker daemon IPC
*
* \param[in] name IPC system name to connect to
* \param[in] max_size Use a maximum IPC buffer size of at least this size
*
* \return Newly allocated IPC object on success, NULL otherwise
*
* \note The caller is responsible for freeing the result using
* crm_ipc_destroy().
* \note This should be considered deprecated for use with daemons supported by
* pcmk_new_ipc_api().
*/
crm_ipc_t *
crm_ipc_new(const char *name, size_t max_size)
{
crm_ipc_t *client = NULL;
client = calloc(1, sizeof(crm_ipc_t));
if (client == NULL) {
crm_err("Could not create IPC connection: %s", strerror(errno));
return NULL;
}
client->server_name = strdup(name);
if (client->server_name == NULL) {
crm_err("Could not create %s IPC connection: %s",
name, strerror(errno));
free(client);
return NULL;
}
client->buf_size = pcmk__ipc_buffer_size(max_size);
client->buffer = malloc(client->buf_size);
if (client->buffer == NULL) {
crm_err("Could not create %s IPC connection: %s",
name, strerror(errno));
free(client->server_name);
free(client);
return NULL;
}
/* Clients initiating connection pick the max buf size */
client->max_buf_size = client->buf_size;
client->pfd.fd = -1;
client->pfd.events = POLLIN;
client->pfd.revents = 0;
return client;
}
/*!
* \brief Establish an IPC connection to a Pacemaker component
*
* \param[in] client Connection instance obtained from crm_ipc_new()
*
* \return TRUE on success, FALSE otherwise (in which case errno will be set;
* specifically, in case of discovering the remote side is not
* authentic, its value is set to ECONNABORTED).
*/
bool
crm_ipc_connect(crm_ipc_t * client)
{
uid_t cl_uid = 0;
gid_t cl_gid = 0;
pid_t found_pid = 0; uid_t found_uid = 0; gid_t found_gid = 0;
int rv;
client->need_reply = FALSE;
client->ipc = qb_ipcc_connect(client->server_name, client->buf_size);
if (client->ipc == NULL) {
crm_debug("Could not establish %s IPC connection: %s (%d)",
client->server_name, pcmk_rc_str(errno), errno);
return FALSE;
}
client->pfd.fd = crm_ipc_get_fd(client);
if (client->pfd.fd < 0) {
rv = errno;
/* message already omitted */
crm_ipc_close(client);
errno = rv;
return FALSE;
}
rv = pcmk_daemon_user(&cl_uid, &cl_gid);
if (rv < 0) {
/* message already omitted */
crm_ipc_close(client);
errno = -rv;
return FALSE;
}
if ((rv = pcmk__crm_ipc_is_authentic_process(client->ipc, client->pfd.fd, cl_uid, cl_gid,
&found_pid, &found_uid,
&found_gid)) == pcmk_rc_ipc_unauthorized) {
crm_err("%s IPC provider authentication failed: process %lld has "
"uid %lld (expected %lld) and gid %lld (expected %lld)",
client->server_name,
(long long) PCMK__SPECIAL_PID_AS_0(found_pid),
(long long) found_uid, (long long) cl_uid,
(long long) found_gid, (long long) cl_gid);
crm_ipc_close(client);
errno = ECONNABORTED;
return FALSE;
} else if (rv != pcmk_rc_ok) {
crm_perror(LOG_ERR, "Could not verify authenticity of %s IPC provider",
client->server_name);
crm_ipc_close(client);
if (rv > 0) {
errno = rv;
} else {
errno = ENOTCONN;
}
return FALSE;
}
qb_ipcc_context_set(client->ipc, client);
client->max_buf_size = qb_ipcc_get_buffer_size(client->ipc);
if (client->max_buf_size > client->buf_size) {
free(client->buffer);
client->buffer = calloc(1, client->max_buf_size);
client->buf_size = client->max_buf_size;
}
return TRUE;
}
void
crm_ipc_close(crm_ipc_t * client)
{
if (client) {
if (client->ipc) {
qb_ipcc_connection_t *ipc = client->ipc;
client->ipc = NULL;
qb_ipcc_disconnect(ipc);
}
}
}
void
crm_ipc_destroy(crm_ipc_t * client)
{
if (client) {
if (client->ipc && qb_ipcc_is_connected(client->ipc)) {
crm_notice("Destroying active %s IPC connection",
client->server_name);
/* The next line is basically unsafe
*
* If this connection was attached to mainloop and mainloop is active,
* the 'disconnected' callback will end up back here and we'll end
* up free'ing the memory twice - something that can still happen
* even without this if we destroy a connection and it closes before
* we call exit
*/
/* crm_ipc_close(client); */
} else {
crm_trace("Destroying inactive %s IPC connection",
client->server_name);
}
free(client->buffer);
free(client->server_name);
free(client);
}
}
int
crm_ipc_get_fd(crm_ipc_t * client)
{
int fd = 0;
if (client && client->ipc && (qb_ipcc_fd_get(client->ipc, &fd) == 0)) {
return fd;
}
errno = EINVAL;
crm_perror(LOG_ERR, "Could not obtain file descriptor for %s IPC",
(client? client->server_name : "unspecified"));
return -errno;
}
bool
crm_ipc_connected(crm_ipc_t * client)
{
bool rc = FALSE;
if (client == NULL) {
crm_trace("No client");
return FALSE;
} else if (client->ipc == NULL) {
crm_trace("No connection");
return FALSE;
} else if (client->pfd.fd < 0) {
crm_trace("Bad descriptor");
return FALSE;
}
rc = qb_ipcc_is_connected(client->ipc);
if (rc == FALSE) {
client->pfd.fd = -EINVAL;
}
return rc;
}
/*!
* \brief Check whether an IPC connection is ready to be read
*
* \param[in] client Connection to check
*
* \return Positive value if ready to be read, 0 if not ready, -errno on error
*/
int
crm_ipc_ready(crm_ipc_t *client)
{
int rc;
CRM_ASSERT(client != NULL);
if (crm_ipc_connected(client) == FALSE) {
return -ENOTCONN;
}
client->pfd.revents = 0;
rc = poll(&(client->pfd), 1, 0);
return (rc < 0)? -errno : rc;
}
// \return Standard Pacemaker return code
static int
crm_ipc_decompress(crm_ipc_t * client)
{
pcmk__ipc_header_t *header = (pcmk__ipc_header_t *)(void*)client->buffer;
if (header->size_compressed) {
int rc = 0;
unsigned int size_u = 1 + header->size_uncompressed;
/* never let buf size fall below our max size required for ipc reads. */
unsigned int new_buf_size = QB_MAX((sizeof(pcmk__ipc_header_t) + size_u), client->max_buf_size);
char *uncompressed = calloc(1, new_buf_size);
crm_trace("Decompressing message data %u bytes into %u bytes",
header->size_compressed, size_u);
rc = BZ2_bzBuffToBuffDecompress(uncompressed + sizeof(pcmk__ipc_header_t), &size_u,
client->buffer + sizeof(pcmk__ipc_header_t), header->size_compressed, 1, 0);
if (rc != BZ_OK) {
crm_err("Decompression failed: %s " CRM_XS " bzerror=%d",
bz2_strerror(rc), rc);
free(uncompressed);
return EILSEQ;
}
/*
* This assert no longer holds true. For an identical msg, some clients may
* require compression, and others may not. If that same msg (event) is sent
* to multiple clients, it could result in some clients receiving a compressed
* msg even though compression was not explicitly required for them.
*
* CRM_ASSERT((header->size_uncompressed + sizeof(pcmk__ipc_header_t)) >= ipc_buffer_max);
*/
CRM_ASSERT(size_u == header->size_uncompressed);
memcpy(uncompressed, client->buffer, sizeof(pcmk__ipc_header_t)); /* Preserve the header */
header = (pcmk__ipc_header_t *)(void*)uncompressed;
free(client->buffer);
client->buf_size = new_buf_size;
client->buffer = uncompressed;
}
CRM_ASSERT(client->buffer[sizeof(pcmk__ipc_header_t) + header->size_uncompressed - 1] == 0);
return pcmk_rc_ok;
}
long
crm_ipc_read(crm_ipc_t * client)
{
pcmk__ipc_header_t *header = NULL;
CRM_ASSERT(client != NULL);
CRM_ASSERT(client->ipc != NULL);
CRM_ASSERT(client->buffer != NULL);
client->buffer[0] = 0;
client->msg_size = qb_ipcc_event_recv(client->ipc, client->buffer,
client->buf_size, 0);
if (client->msg_size >= 0) {
int rc = crm_ipc_decompress(client);
if (rc != pcmk_rc_ok) {
return pcmk_rc2legacy(rc);
}
header = (pcmk__ipc_header_t *)(void*)client->buffer;
if (!pcmk__valid_ipc_header(header)) {
return -EBADMSG;
}
crm_trace("Received %s IPC event %d size=%u rc=%d text='%.100s'",
client->server_name, header->qb.id, header->qb.size,
client->msg_size,
client->buffer + sizeof(pcmk__ipc_header_t));
} else {
crm_trace("No message received from %s IPC: %s",
client->server_name, pcmk_strerror(client->msg_size));
}
if (crm_ipc_connected(client) == FALSE || client->msg_size == -ENOTCONN) {
crm_err("Connection to %s IPC failed", client->server_name);
}
if (header) {
/* Data excluding the header */
return header->size_uncompressed;
}
return -ENOMSG;
}
const char *
crm_ipc_buffer(crm_ipc_t * client)
{
CRM_ASSERT(client != NULL);
return client->buffer + sizeof(pcmk__ipc_header_t);
}
uint32_t
crm_ipc_buffer_flags(crm_ipc_t * client)
{
pcmk__ipc_header_t *header = NULL;
CRM_ASSERT(client != NULL);
if (client->buffer == NULL) {
return 0;
}
header = (pcmk__ipc_header_t *)(void*)client->buffer;
return header->flags;
}
const char *
crm_ipc_name(crm_ipc_t * client)
{
CRM_ASSERT(client != NULL);
return client->server_name;
}
// \return Standard Pacemaker return code
static int
internal_ipc_get_reply(crm_ipc_t *client, int request_id, int ms_timeout,
ssize_t *bytes)
{
time_t timeout = time(NULL) + 1 + (ms_timeout / 1000);
int rc = pcmk_rc_ok;
/* get the reply */
crm_trace("Waiting on reply to %s IPC message %d",
client->server_name, request_id);
do {
*bytes = qb_ipcc_recv(client->ipc, client->buffer, client->buf_size, 1000);
if (*bytes > 0) {
pcmk__ipc_header_t *hdr = NULL;
rc = crm_ipc_decompress(client);
if (rc != pcmk_rc_ok) {
return rc;
}
hdr = (pcmk__ipc_header_t *)(void*)client->buffer;
if (hdr->qb.id == request_id) {
/* Got it */
break;
} else if (hdr->qb.id < request_id) {
xmlNode *bad = string2xml(crm_ipc_buffer(client));
crm_err("Discarding old reply %d (need %d)", hdr->qb.id, request_id);
crm_log_xml_notice(bad, "OldIpcReply");
} else {
xmlNode *bad = string2xml(crm_ipc_buffer(client));
crm_err("Discarding newer reply %d (need %d)", hdr->qb.id, request_id);
crm_log_xml_notice(bad, "ImpossibleReply");
CRM_ASSERT(hdr->qb.id <= request_id);
}
} else if (crm_ipc_connected(client) == FALSE) {
crm_err("%s IPC provider disconnected while waiting for message %d",
client->server_name, request_id);
break;
}
} while (time(NULL) < timeout);
if (*bytes < 0) {
rc = (int) -*bytes; // System errno
}
return rc;
}
/*!
* \brief Send an IPC XML message
*
* \param[in] client Connection to IPC server
* \param[in] message XML message to send
* \param[in] flags Bitmask of crm_ipc_flags
* \param[in] ms_timeout Give up if not sent within this much time
* (5 seconds if 0, or no timeout if negative)
* \param[out] reply Reply from server (or NULL if none)
*
* \return Negative errno on error, otherwise size of reply received in bytes
* if reply was needed, otherwise number of bytes sent
*/
int
crm_ipc_send(crm_ipc_t * client, xmlNode * message, enum crm_ipc_flags flags, int32_t ms_timeout,
xmlNode ** reply)
{
int rc = 0;
ssize_t qb_rc = 0;
ssize_t bytes = 0;
struct iovec *iov;
static uint32_t id = 0;
static int factor = 8;
pcmk__ipc_header_t *header;
if (client == NULL) {
crm_notice("Can't send IPC request without connection (bug?): %.100s",
message);
return -ENOTCONN;
} else if (crm_ipc_connected(client) == FALSE) {
/* Don't even bother */
crm_notice("Can't send %s IPC requests: Connection closed",
client->server_name);
return -ENOTCONN;
}
if (ms_timeout == 0) {
ms_timeout = 5000;
}
if (client->need_reply) {
qb_rc = qb_ipcc_recv(client->ipc, client->buffer, client->buf_size, ms_timeout);
if (qb_rc < 0) {
crm_warn("Sending %s IPC disabled until pending reply received",
client->server_name);
return -EALREADY;
} else {
crm_notice("Sending %s IPC re-enabled after pending reply received",
client->server_name);
client->need_reply = FALSE;
}
}
id++;
CRM_LOG_ASSERT(id != 0); /* Crude wrap-around detection */
rc = pcmk__ipc_prepare_iov(id, message, client->max_buf_size, &iov, &bytes);
if (rc != pcmk_rc_ok) {
crm_warn("Couldn't prepare %s IPC request: %s " CRM_XS " rc=%d",
client->server_name, pcmk_rc_str(rc), rc);
return pcmk_rc2legacy(rc);
}
header = iov[0].iov_base;
pcmk__set_ipc_flags(header->flags, client->server_name, flags);
if (pcmk_is_set(flags, crm_ipc_proxied)) {
/* Don't look for a synchronous response */
pcmk__clear_ipc_flags(flags, "client", crm_ipc_client_response);
}
if(header->size_compressed) {
if(factor < 10 && (client->max_buf_size / 10) < (bytes / factor)) {
crm_notice("Compressed message exceeds %d0%% of configured IPC "
"limit (%u bytes); consider setting PCMK_ipc_buffer to "
"%u or higher",
factor, client->max_buf_size, 2 * client->max_buf_size);
factor++;
}
}
crm_trace("Sending %s IPC request %d of %u bytes using %dms timeout",
client->server_name, header->qb.id, header->qb.size, ms_timeout);
if ((ms_timeout > 0) || !pcmk_is_set(flags, crm_ipc_client_response)) {
time_t timeout = time(NULL) + 1 + (ms_timeout / 1000);
do {
/* @TODO Is this check really needed? Won't qb_ipcc_sendv() return
* an error if it's not connected?
*/
if (!crm_ipc_connected(client)) {
goto send_cleanup;
}
qb_rc = qb_ipcc_sendv(client->ipc, iov, 2);
} while ((qb_rc == -EAGAIN) && (time(NULL) < timeout));
rc = (int) qb_rc; // Negative of system errno, or bytes sent
if (qb_rc <= 0) {
goto send_cleanup;
} else if (!pcmk_is_set(flags, crm_ipc_client_response)) {
crm_trace("Not waiting for reply to %s IPC request %d",
client->server_name, header->qb.id);
goto send_cleanup;
}
rc = internal_ipc_get_reply(client, header->qb.id, ms_timeout, &bytes);
if (rc != pcmk_rc_ok) {
/* We didn't get the reply in time, so disable future sends for now.
* The only alternative would be to close the connection since we
* don't know how to detect and discard out-of-sequence replies.
*
* @TODO Implement out-of-sequence detection
*/
client->need_reply = TRUE;
}
rc = (int) bytes; // Negative system errno, or size of reply received
} else {
// No timeout, and client response needed
do {
qb_rc = qb_ipcc_sendv_recv(client->ipc, iov, 2, client->buffer,
client->buf_size, -1);
} while ((qb_rc == -EAGAIN) && crm_ipc_connected(client));
rc = (int) qb_rc; // Negative system errno, or size of reply received
}
if (rc > 0) {
pcmk__ipc_header_t *hdr = (pcmk__ipc_header_t *)(void*)client->buffer;
crm_trace("Received %d-byte reply %d to %s IPC %d: %.100s",
rc, hdr->qb.id, client->server_name, header->qb.id,
crm_ipc_buffer(client));
if (reply) {
*reply = string2xml(crm_ipc_buffer(client));
}
} else {
crm_trace("No reply to %s IPC %d: rc=%d",
client->server_name, header->qb.id, rc);
}
send_cleanup:
if (crm_ipc_connected(client) == FALSE) {
crm_notice("Couldn't send %s IPC request %d: Connection closed "
CRM_XS " rc=%d", client->server_name, header->qb.id, rc);
} else if (rc == -ETIMEDOUT) {
crm_warn("%s IPC request %d failed: %s after %dms " CRM_XS " rc=%d",
client->server_name, header->qb.id, pcmk_strerror(rc),
ms_timeout, rc);
crm_write_blackbox(0, NULL);
} else if (rc <= 0) {
crm_warn("%s IPC request %d failed: %s " CRM_XS " rc=%d",
client->server_name, header->qb.id,
((rc == 0)? "No bytes sent" : pcmk_strerror(rc)), rc);
}
pcmk_free_ipc_event(iov);
return rc;
}
int
pcmk__crm_ipc_is_authentic_process(qb_ipcc_connection_t *qb_ipc, int sock, uid_t refuid, gid_t refgid,
pid_t *gotpid, uid_t *gotuid, gid_t *gotgid)
{
int ret = 0;
pid_t found_pid = 0; uid_t found_uid = 0; gid_t found_gid = 0;
#if defined(US_AUTH_PEERCRED_UCRED)
struct ucred ucred;
socklen_t ucred_len = sizeof(ucred);
#endif
#ifdef HAVE_QB_IPCC_AUTH_GET
if (qb_ipc && !qb_ipcc_auth_get(qb_ipc, &found_pid, &found_uid, &found_gid)) {
goto do_checks;
}
#endif
#if defined(US_AUTH_PEERCRED_UCRED)
if (!getsockopt(sock, SOL_SOCKET, SO_PEERCRED,
&ucred, &ucred_len)
&& ucred_len == sizeof(ucred)) {
found_pid = ucred.pid; found_uid = ucred.uid; found_gid = ucred.gid;
#elif defined(US_AUTH_PEERCRED_SOCKPEERCRED)
struct sockpeercred sockpeercred;
socklen_t sockpeercred_len = sizeof(sockpeercred);
if (!getsockopt(sock, SOL_SOCKET, SO_PEERCRED,
&sockpeercred, &sockpeercred_len)
&& sockpeercred_len == sizeof(sockpeercred_len)) {
found_pid = sockpeercred.pid;
found_uid = sockpeercred.uid; found_gid = sockpeercred.gid;
#elif defined(US_AUTH_GETPEEREID)
if (!getpeereid(sock, &found_uid, &found_gid)) {
found_pid = PCMK__SPECIAL_PID; /* cannot obtain PID (FreeBSD) */
#elif defined(US_AUTH_GETPEERUCRED)
ucred_t *ucred;
if (!getpeerucred(sock, &ucred)) {
errno = 0;
found_pid = ucred_getpid(ucred);
found_uid = ucred_geteuid(ucred); found_gid = ucred_getegid(ucred);
ret = -errno;
ucred_free(ucred);
if (ret) {
return (ret < 0) ? ret : -pcmk_err_generic;
}
#else
# error "No way to authenticate a Unix socket peer"
errno = 0;
if (0) {
#endif
#ifdef HAVE_QB_IPCC_AUTH_GET
do_checks:
#endif
if (gotpid != NULL) {
*gotpid = found_pid;
}
if (gotuid != NULL) {
*gotuid = found_uid;
}
if (gotgid != NULL) {
*gotgid = found_gid;
}
if (found_uid == 0 || found_uid == refuid || found_gid == refgid) {
ret = 0;
} else {
ret = pcmk_rc_ipc_unauthorized;
}
} else {
ret = (errno > 0) ? errno : pcmk_rc_error;
}
return ret;
}
int
crm_ipc_is_authentic_process(int sock, uid_t refuid, gid_t refgid,
pid_t *gotpid, uid_t *gotuid, gid_t *gotgid)
{
int ret = pcmk__crm_ipc_is_authentic_process(NULL, sock, refuid, refgid,
gotpid, gotuid, gotgid);
/* The old function had some very odd return codes*/
if (ret == 0) {
return 1;
} else if (ret == pcmk_rc_ipc_unauthorized) {
return 0;
} else {
return pcmk_rc2legacy(ret);
}
}
int
pcmk__ipc_is_authentic_process_active(const char *name, uid_t refuid,
gid_t refgid, pid_t *gotpid)
{
static char last_asked_name[PATH_MAX / 2] = ""; /* log spam prevention */
int fd;
int rc = pcmk_rc_ipc_unresponsive;
int auth_rc = 0;
int32_t qb_rc;
pid_t found_pid = 0; uid_t found_uid = 0; gid_t found_gid = 0;
qb_ipcc_connection_t *c;
+#ifdef HAVE_QB_IPCC_CONNECT_ASYNC
+ struct pollfd pollfd = { 0, };
+ int poll_rc;
+ c = qb_ipcc_connect_async(name, 0,
+ &(pollfd.fd));
+#else
c = qb_ipcc_connect(name, 0);
+#endif
if (c == NULL) {
crm_info("Could not connect to %s IPC: %s", name, strerror(errno));
rc = pcmk_rc_ipc_unresponsive;
goto bail;
}
+#ifdef HAVE_QB_IPCC_CONNECT_ASYNC
+ pollfd.events = POLLIN;
+ do {
+ poll_rc = poll(&pollfd, 1, 2000);
+ } while ((poll_rc == -1) && (errno == EINTR));
+ if ((poll_rc <= 0) || (qb_ipcc_connect_continue(c) != 0)) {
+ crm_info("Could not connect to %s IPC: %s", name,
+ (poll_rc == 0)?"timeout":strerror(errno));
+ rc = pcmk_rc_ipc_unresponsive;
+ if (poll_rc > 0) {
+ c = NULL; // qb_ipcc_connect_continue cleaned up for us
+ }
+ goto bail;
+ }
+#endif
qb_rc = qb_ipcc_fd_get(c, &fd);
if (qb_rc != 0) {
rc = (int) -qb_rc; // System errno
crm_err("Could not get fd from %s IPC: %s " CRM_XS " rc=%d",
name, pcmk_rc_str(rc), rc);
goto bail;
}
auth_rc = pcmk__crm_ipc_is_authentic_process(c, fd, refuid, refgid, &found_pid,
&found_uid, &found_gid);
if (auth_rc == pcmk_rc_ipc_unauthorized) {
crm_err("Daemon (IPC %s) effectively blocked with unauthorized"
" process %lld (uid: %lld, gid: %lld)",
name, (long long) PCMK__SPECIAL_PID_AS_0(found_pid),
(long long) found_uid, (long long) found_gid);
rc = pcmk_rc_ipc_unauthorized;
goto bail;
}
if (auth_rc != pcmk_rc_ok) {
rc = auth_rc;
crm_err("Could not get peer credentials from %s IPC: %s "
CRM_XS " rc=%d", name, pcmk_rc_str(rc), rc);
goto bail;
}
if (gotpid != NULL) {
*gotpid = found_pid;
}
rc = pcmk_rc_ok;
if ((found_uid != refuid || found_gid != refgid)
&& strncmp(last_asked_name, name, sizeof(last_asked_name))) {
if ((found_uid == 0) && (refuid != 0)) {
crm_warn("Daemon (IPC %s) runs as root, whereas the expected"
" credentials are %lld:%lld, hazard of violating"
" the least privilege principle",
name, (long long) refuid, (long long) refgid);
} else {
crm_notice("Daemon (IPC %s) runs as %lld:%lld, whereas the"
" expected credentials are %lld:%lld, which may"
" mean a different set of privileges than expected",
name, (long long) found_uid, (long long) found_gid,
(long long) refuid, (long long) refgid);
}
memccpy(last_asked_name, name, '\0', sizeof(last_asked_name));
}
bail:
if (c != NULL) {
qb_ipcc_disconnect(c);
}
return rc;
}