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Joachim Wiberg da83462731 libsystemd: new library, refactor sd-daemon.[ch] test code 
This commit introduces a bare-bones replacement for libsystemd:

 - Build .so file and add --with-libsystemd to configure
 - Add capabilities support to test/src/serv.c
 - Update tests to account for a Finit built w/o libsystemd support

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2025-07-02 16:42:06 +02:00

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AC_INIT([Finit], [4.13-pre], [https://github.com/troglobit/finit/issues],
[finit], [https://troglobit.com/projects/finit/])
AC_CONFIG_AUX_DIR(aux)
AM_INIT_AUTOMAKE([1.11 foreign dist-xz subdir-objects])
AM_SILENT_RULES([yes])
AC_CONFIG_SRCDIR([src/finit.c])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([Makefile
contrib/Makefile
contrib/alpine/Makefile contrib/alpine/finit.d/Makefile contrib/alpine/finit.d/available/Makefile
contrib/debian/Makefile contrib/debian/finit.d/Makefile contrib/debian/finit.d/available/Makefile
contrib/void/Makefile contrib/void/finit.d/Makefile contrib/void/finit.d/available/Makefile
doc/Makefile
libsystemd/Makefile libsystemd/libsystemd.pc
man/Makefile
plugins/Makefile
src/Makefile
system/Makefile system/10-hotplug.conf
test/test.env test/Makefile
test/lib/Makefile test/src/Makefile
tmpfiles.d/Makefile])
# Older versions of autoconf (<2.58) do not have AC_CONFIG_MACRO_DIR()
#m4_include([m4/plugin.m4])
#m4_include([m4/expand.m4])
AC_CONFIG_MACRO_DIR([m4])
# Handle building plugins either as dynamically loadable, or built-in
LT_INIT([shared disable-static dlopen aix-soname=both disable-fast-install])
# Checks for programs.
AC_PROG_CC
AC_PROG_LN_S
AC_PROG_INSTALL
AC_PROG_MKDIR_P
# Configuration.
AC_CHECK_HEADERS([termios.h sys/ioctl.h mntent.h sys/sysmacros.h])
AC_CHECK_FUNCS([strstr getopt getmntent getmntent_r])
# Check for uint[8,16,32]_t
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
# Check for pkg-config first, warn if it's not installed
PKG_PROG_PKG_CONFIG
# Check for required libraries
PKG_CHECK_MODULES([uev], [libuev >= 2.2.0])
PKG_CHECK_MODULES([lite], [libite >= 2.2.0])
# Check for configured Finit features
AC_ARG_ENABLE(auto_reload,
AS_HELP_STRING([--enable-auto-reload], [Automatic reload on any .conf change]),,[
enable_auto_reload=no])
AC_ARG_ENABLE(kernel_cmdline,
AS_HELP_STRING([--enable-kernel-cmdline], [Parse init args from /proc/cmdline (don't use!)]),,[
enable_kernel_cmdline=no])
AC_ARG_ENABLE(fastboot,
AS_HELP_STRING([--enable-fastboot], [Skip fsck check on filesystems listed in /etc/fstab]),,[
enable_fastboot=no])
AC_ARG_ENABLE(fsckfix,
AS_HELP_STRING([--enable-fsckfix], [Run fsck fix mode (options: -yf) on filesystems listed in /etc/fstab]),,[
enable_fsckfix=no])
AC_ARG_ENABLE(cgroup,
AS_HELP_STRING([--disable-cgroup], [Disable cgroup v2 support, default: autodetect from /sys/fs/cgroup]),,[
enable_cgroup=yes])
AC_ARG_ENABLE(redirect,
AS_HELP_STRING([--disable-redirect], [Disable redirection of service output to /dev/null]),,[
enable_redirect=yes])
AC_ARG_ENABLE(kernel_logging,
AS_HELP_STRING([--disable-kernel-logging], [Disable kernel logging to console (use 'quiet' instead!]),,[
enable_kernel_logging=yes])
AC_ARG_ENABLE(logrotate,
AS_HELP_STRING([--disable-logrotate], [Disable built-in rotation of /var/log/wtmp]),,[
enable_logrotate=yes])
AC_ARG_ENABLE(doc,
AS_HELP_STRING([--disable-doc], [Disable build and install of doc/ section]),,[
enable_doc=yes])
AC_ARG_ENABLE(contrib,
AS_HELP_STRING([--disable-contrib], [Disable build and install of contrib section]),,[
enable_contrib=yes])
AC_ARG_ENABLE([rescue],
AS_HELP_STRING([--disable-rescue], [Disable potentially unsafe rescue mode]),,
[enable_rescue=yes])
# Check for extra plugins to enable
AC_ARG_ENABLE(all_plugins,
AS_HELP_STRING([--enable-all-plugins], [Enable all plugins, default: auto]),
enable_all_plugins=$enableval, enable_all_plugins=auto)
AC_PLUGIN([alsa-utils], [no], [Save and restore ALSA sound settings using alsactl])
AC_PLUGIN([dbus], [no], [Setup and start system message bus, D-Bus])
AC_PLUGIN([modules-load], [no], [Scans /etc/modules-load.d for modules to load])
AC_PLUGIN([modprobe], [no], [Coldplug modules using modalias magic])
AC_PLUGIN([resolvconf], [no], [Setup necessary files for resolvconf])
AC_PLUGIN([x11-common], [no], [Console setup (for X)])
AC_PLUGIN([netlink], [yes], [Basic netlink plugin for IFUP/IFDN and GW events. Can be replaced with externally built plugin that links with libnl or similar.])
AC_PLUGIN([hook-scripts], [no], [Trigger script execution from hook points])
AC_PLUGIN([hotplug], [yes], [Start udevd or mdev kernel event datamon])
AC_PLUGIN([rtc], [yes], [Save and restore RTC using hwclock])
AC_PLUGIN([tty], [yes], [Automatically activate new TTYs, e.g. USB-to-serial])
AC_PLUGIN([urandom], [yes], [Setup and save random seed at boot/shutdown])
AC_PLUGIN([testserv], [no], [Test plugin to start test serv daemon])
# Check for extra arguments or packages
AC_ARG_WITH([bash-completion-dir],
AS_HELP_STRING([--with-bash-completion-dir[=PATH]], [Directory to install Bash completion, default: auto]),
[bash_dir=$withval], [bash_dir=yes])
AC_ARG_WITH(fstab,
AS_HELP_STRING([--with-fstab=FILE], [System default fstab, default $sysconfdir/fstab]),
[fstab=$withval], [fstab=yes])
AC_ARG_WITH(heading,
AS_HELP_STRING([--with-heading=GREET], [Heading for boot progress. Default: PRETTY_NAME from /etc/os-release, fallback to "Finit vX.YY"]),
[heading=$withval], [heading=yes])
AC_ARG_WITH(config,
AS_HELP_STRING([--with-config=CONFIG], [Finit bootstrap config file, default /etc/finit.conf]),
[conf=$withval], [conf=yes])
AC_ARG_WITH(rcsd,
AS_HELP_STRING([--with-rcsd=DIR], [Finit rcS.d/ directory, default /etc/finit.d]),
[rcsd=$withval], [rcsd=yes])
AC_ARG_WITH(rc-local,
AS_HELP_STRING([--with-rc-local=FILE], [SysV init /etc/rc.local file, default /etc/rc.local]),
[rclocal=$withval], [rclocal=yes])
AC_ARG_WITH(sysconfig,
AS_HELP_STRING([--with-sysconfig=DIR], [System environment directory, sourced by .conf files, default /etc/default & /etc/conf.d]),
[sysconfig=$withval], [sysconfig=default])
AC_ARG_WITH(group,
AS_HELP_STRING([--with-group=NAME], [Group for /run/finit/socket (initctl), default: root]),
[group=$withval], [group=root])
AC_ARG_WITH(hostname,
AS_HELP_STRING([--with-hostname=NAME], [If /etc/hostname is missing, default: noname]),
[hostname=$withval], [hostname=yes])
AC_ARG_WITH(runlevel,
AS_HELP_STRING([--with-runlevel=N], [Runlevel to switch to after bootstrap [1-9], default: 2]),
[runlevel=$withval], [runlevel=yes])
AC_ARG_WITH(random-seed,
AS_HELP_STRING([--with-random-seed=FILE], [Save a random seed for /dev/urandom across reboots, default /var/lib/misc/random-seed]),
[random_seed=$withval], [random_seed=yes])
AC_ARG_WITH(keventd,
AS_HELP_STRING([--with-keventd], [Enable built-in keventd, default: no]),, [with_keventd=no])
AC_ARG_WITH(sulogin,
AS_HELP_STRING([--with-sulogin@<:@=USER@:>@], [Enable built-in sulogin, optional USER to request password for (default root), default: no.]),[sulogin=$withval],[with_sulogin=no])
AC_ARG_WITH(watchdog,
AS_HELP_STRING([--with-watchdog@<:@=DEV@:>@], [Enable built-in watchdog, default: /dev/watchdog]),
[watchdog=$withval], [with_watchdog=no watchdog=])
AC_ARG_WITH(libsystemd,
AS_HELP_STRING([--with-libsystemd], [Build replacement libsystemd library, default: yes]),
[with_libsystemd=$withval], [with_libsystemd=yes])
AC_ARG_WITH(hook-scripts-path,
AS_HELP_STRING([--with-hook-scripts-path=DIR], [Base directory for hook scripts, default $libexecdir/finit/hook]),
[hook_scripts_path=$withval], [hook_scripts_path=yes])
AC_ARG_WITH(plugin-path,
AS_HELP_STRING([--with-plugin-path=DIR], [Search path for external plugins, default /usr/lib/finit/plugins:/usr/local/lib/finit/plugins]),
[plugin_path=$withval], [plugin_path=yes])
AC_ARG_WITH(rtc-date,
AS_HELP_STRING([--with-rtc-date=DATE], [If RTC date/time is too old, restore to DATE, format "YYYY-MM-DD HH:MM:SS", default "2000-01-01 00:00:00"]),
[rtc_date=$withval], [rtc_date=no])
AC_ARG_WITH(rtc-file,
AS_HELP_STRING([--with-rtc-file=FILE], [If RTC is missing, save and restore system clock from this file, default: no]),
[rtc_file=$withval], [rtc_file=no])
### Enable features ###########################################################################
# Create config.h from selected features and fallback defaults
AS_IF([test "x$enable_auto_reload" = "xyes"], [
AC_DEFINE(AUTO_RELOAD, 1, [Finit automatically does `initctl reload` on any .conf change])])
AS_IF([test "x$enable_kernel_cmdline" = "xyes"], [
AC_DEFINE(KERNEL_CMDLINE, 1, [Dumpster diving after init args from /proc/cmdline])])
AS_IF([test "x$enable_kernel_logging" = "xyes"], [
AC_DEFINE(KERNEL_LOGGING, 1, [Keep kernel warn/err logs to console])])
AS_IF([test "x$enable_cgroup" = "xyes"], [
AC_DEFINE(CGROUP2_ENABLED, 1, [Autodetect cgroup v2 support from /sys/fs/cgroup])])
AS_IF([test "x$enable_fastboot" = "xyes"], [
AC_DEFINE(FAST_BOOT, 1, [Skip fsck check on filesystems listed in /etc/fstab])])
AS_IF([test "x$enable_fsckfix" = "xyes"], [
AC_DEFINE(FSCK_FIX, 1, [Run fsck fix mode (options: -yf) on filesystems listed in /etc/fstab])])
AS_IF([test "x$enable_redirect" = "xyes"], [
AC_DEFINE(REDIRECT_OUTPUT, 1, [Enable redirection of service output to /dev/null])])
### Disable features ###########################################################################
AS_IF([test "x$enable_logrotate" != "xno"], [
AC_DEFINE(LOGROTATE_ENABLED, 1, [Enable built-in rotation of /var/log/wtmp et al.])])
AS_IF([test "x$enable_rescue" != "xno"], [
AC_DEFINE([RESCUE_MODE], 1, [Define to enable support for rescue mode.])])
AM_CONDITIONAL(LOGROTATE, [test "x$enable_logrotate" = "xyes"])
### With features ##############################################################################
AS_IF([test "x$bash_dir" = "xyes"], [
PKG_CHECK_MODULES([BASH_COMPLETION], [bash-completion >= 2.0],
[BASH_DIR="$(pkg-config --variable=completionsdir bash-completion)"],
[BASH_DIR="$datadir/bash-completion/completions"])], [
BASH_DIR="$bash_dir"])
AS_IF([test "x$with_fstab" != "xno"], [
AS_IF([test "x$fstab" = "xyes"], [fstab=$sysconfdir/fstab])
AC_EXPAND_DIR(fstab_path, "$fstab")
AC_DEFINE_UNQUOTED(FINIT_FSTAB, "$fstab_path", [Built-in default: /etc/fstab])],[
AC_DEFINE_UNQUOTED(FINIT_FSTAB, NULL, [No built-in default fstab])])
AS_IF([test "x$with_config" != "xno"], [
AS_IF([test "x$conf" = "xyes"], [
conf=$sysconfdir/finit.conf])])
AC_EXPAND_DIR(conf_path, "$conf")
AC_DEFINE_UNQUOTED(FINIT_CONF, "$conf_path", [Main Finit configuration file, default /etc/finit.conf])
AC_SUBST(FINIT_CONF, "$conf_path")
AS_IF([test "x$with_rcsd" != "xno"], [
AS_IF([test "x$rcsd" = "xyes"], [
rcsd=$sysconfdir/finit.d])])
AC_EXPAND_DIR(rcsd_path, "$rcsd")
AC_DEFINE_UNQUOTED(FINIT_RCSD, "$rcsd_path", [Finit rcS.d/, default /etc/finit.d])
AC_SUBST(FINIT_RCSD, "$rcsd_path")
AS_IF([test "x$with_rc_local" != "xno"], [
AS_IF([test "x$rclocal" = "xyes"], [rclocal=$sysconfdir/rc.local])
AC_EXPAND_DIR(rclocal_path, "$rclocal")
AC_DEFINE_UNQUOTED(FINIT_RC_LOCAL, "$rclocal_path", [Compat SysV /etc/rc.local file to run last at boot.])])
AS_IF([test "x$with_sysconfig" != "xno"], [
AS_IF([test "x$sysconfig" != "xdefault"], [
AC_EXPAND_DIR(sysconfig_path, "$sysconfig")
AC_DEFINE_UNQUOTED(FINIT_SYSCONFIG, "$sysconfig_path",
[System environment, default /etc/default & /etc/conf.d])])])
AS_IF([test "x$with_heading" != "xno"], [
AS_IF([test "x$heading" = "xyes"], [heading=""])
AC_DEFINE_UNQUOTED(INIT_OSHEADING, "$heading", [Displayed by Finit at boot, defaults to /etc/os-release PRETTY_NAME])])
AS_IF([test "x$with_group" != "xno"], [
AS_IF([test "x$group" = "xyes"], [
group=root])])
AC_DEFINE_UNQUOTED(DEFGROUP, "$group", [For /run/finit/socket])
AS_IF([test "x$with_hostname" != "xno"], [
AS_IF([test "x$hostname" = "xyes"], [
hostname=noname])])
AC_DEFINE_UNQUOTED(DEFHOST, "$hostname", [For /etc/hostname])
AS_IF([test "x$with_runlevel" != "xno"], [
AS_IF([test "x$runlevel" = "xyes"], [
runlevel=2
AC_DEFINE_UNQUOTED(RUNLEVEL, $runlevel, [Default runlevel to start after S])])
AC_DEFINE_UNQUOTED(RUNLEVEL, $runlevel, [Runlevel to start after S])])
AS_IF([test "x$with_random_seed" != "xno"], [
AS_IF([test "x$random_seed" = "xyes"], [
random_seed=/var/lib/misc/random-seed])
AC_EXPAND_DIR(random_path, "$random_seed")
AC_DEFINE_UNQUOTED(RANDOMSEED, "$random_path", [Improve random at boot by seeding it with sth from before.])])
AS_IF([test "x$rtc_date" != "xno"], [
AC_DEFINE_UNQUOTED(RTC_TIMESTAMP_CUSTOM, "$rtc_date", [Custom RTC restore date, default: 2000-01-01 00:00])], [
rtc_date=""])
AS_IF([test "x$rtc_file" != "xno"], [
AS_IF([test "x$rtc_file" = "xyes"], [
rtc_file=/var/lib/misc/rtc])
AC_EXPAND_DIR(rtcfile_path, "$rtc_file")
AC_DEFINE_UNQUOTED(RTC_FILE, "$rtcfile_path", [Save and restore system time from this file if /dev/rtc is missing.])],[
AC_DEFINE_UNQUOTED(RTC_FILE, NULL)])
AS_IF([test "x$with_keventd" != "xno"], [with_keventd=yes])
AS_IF([test "x$with_sulogin" != "xno"], [
AS_IF([test "x$sulogin" = "xyes"], [
sulogin=root])
with_sulogin=yes
AC_DEFINE_UNQUOTED(SULOGIN_USER, "$sulogin", [Built-in sulogin user, default: root])], [
sulogin=])
AS_IF([test "x$with_watchdog" != "xno"], [
AS_IF([test "x$watchdog" = "xyes"], [
watchdog=/dev/watchdog])
with_watchdog=yes
AC_DEFINE_UNQUOTED(WDT_DEVNODE, "$watchdog", [Built-in watchdog device node])], [
watchdog=])
AS_IF([test "x$with_libsystemd" != "xno"], [
AC_DEFINE(HAVE_LIBSYSTEMD, 1, [Build replacement libsystemd library support])])
AS_IF([test "x$enable_hook_scripts_plugin" != "xno"], [
AS_IF([test "x$hook_scripts_path" = "xyes"], [hook_scripts_path=$libexecdir/finit/hook])
AC_EXPAND_DIR(hook_scripts_path, "$hook_scripts_path")
AC_DEFINE_UNQUOTED(PLUGIN_HOOK_SCRIPTS_PATH, "$hook_scripts_path", [Built-in default: $libexecdir/finit])])
AS_IF([test "x$with_plugin_path" != "xno"], [
AS_IF([test "x$plugin_path" = "xyes"], [plugin_path=/usr/lib/finit/plugins:/usr/local/lib/finit/plugins])
AC_EXPAND_DIR(plugin_path, "$plugin_path")
AC_DEFINE_UNQUOTED(EXTERNAL_PLUGIN_PATH, "$plugin_path", [Built-in default: /usr/lib/finit/plugins:/usr/local/lib/finit/plugins])])
# Control build with automake flags
AM_CONDITIONAL(BASH, [test "x$bash_dir" != "xno"])
AM_CONDITIONAL(STATIC, [test "x$enable_static" = "xyes"])
AM_CONDITIONAL(KEVENTD, [test "x$with_keventd" != "xno"])
AM_CONDITIONAL(SULOGIN, [test "x$with_sulogin" != "xno"])
AM_CONDITIONAL(WATCHDOGD, [test "x$with_watchdog" != "xno"])
AM_CONDITIONAL(LIBSYSTEMD, [test "x$with_libsystemd" != "xno"])
AM_CONDITIONAL(DOC, [test "x$enable_doc" = "xyes"])
AM_CONDITIONAL(CONTRIB, [test "x$enable_contrib" = "xyes"])
AM_CONDITIONAL(TESTSERV, [test "x$enable_testserv_plugin" = "xyes"])
# Workaround for as-of-yet unreleased runstatedir support, planned for
# autoconf 2.70, which some major distros have backported.
AS_IF([test -z "$runstatedir"], runstatedir="$localstatedir/run")
AC_SUBST(runstatedir)
# Override default libdir, used for plugins and rescue.conf
pkglibdir=$libdir/finit
AC_SUBST(pkglibexecdir)
AC_EXPAND_DIR(pkglibexecdir, "$libexecdir/finit")
AC_DEFINE_UNQUOTED(FINIT_EXECPATH_, "$pkglibexecdir", [Finit libexec path])
AC_EXPAND_DIR(finit_runpath, "$runstatedir/finit/system")
AC_DEFINE_UNQUOTED(FINIT_RUNPATH_, "$finit_runpath", [Finit runtime dynamic system services])
AC_EXPAND_DIR(plugin_path, "$pkglibdir/plugins")
AC_SUBST(plugin_path)
AC_DEFINE_UNQUOTED(PLUGIN_PATH, "$plugin_path", [Finit plugin path])
AC_EXPAND_DIR(tmpfiles_path, "$libdir/tmpfiles.d")
AC_SUBST(tmpfiles_path)
AC_DEFINE_UNQUOTED(TMPFILES_PATH_, "$tmpfiles_path", [Main tmpfiles.d/, override in /etc])
AC_EXPAND_DIR(finit_tmpfiles, "$pkglibdir/tmpfiles.d")
AC_SUBST(finit_tmpfiles)
AC_DEFINE_UNQUOTED(FINIT_TMPFILES, "$finit_tmpfiles", [Finit tmpfiles.d/ .conf path])
AC_EXPAND_DIR(system_path, "$pkglibdir/system")
AC_SUBST(system_path)
AC_DEFINE_UNQUOTED(FINIT_SYSPATH_, "$system_path", [Static services, previously generated at runtime by plugins])
AC_EXPAND_DIR(rescue_conf, "$pkglibdir/rescue.conf")
AC_DEFINE_UNQUOTED(RESCUE_CONF, "$rescue_conf", [Finit rescue mode .conf])
AC_EXPAND_DIR(sample_conf, "$pkglibdir/sample.conf")
AC_DEFINE_UNQUOTED(SAMPLE_CONF, "$sample_conf", [Finit sameple.conf for initctl create])
AC_EXPAND_DIR(bash_completion_dir, "$BASH_DIR")
AC_SUBST(BASH_DIR, "$bash_completion_dir")
AS_IF([test "$heading" = ""], [heading="<DEFAULT>"])
AS_IF([test "$heading" = "no"], [heading="<NONE>"])
RTC_DATE=$rtc_date
AS_IF([test "$rtc_date" = ""], [RTC_DATE="<DEFAULT>"])
AS_IF([test "$rtc_date" = "no"], [RTC_DATE="<DEFAULT>"])
# Generate all files
AC_OUTPUT
cat <<EOF
------------------ Summary ------------------
$PACKAGE_NAME version $PACKAGE_VERSION
Prefix................: $(eval echo $prefix)
Exec prefix...........: $(eval echo $exec_prefix)
Libdir................: $(eval echo $libdir)
Sysconfdir............: `eval echo $sysconfdir`
Localstatedir.........: `eval echo $localstatedir`
Default fstab.........: `eval echo $fstab`
Finit config file.....: $conf_path
Finit config.d path...: $rcsd_path
Finit plugin path.....: $plugin_path
Compat rc.local path..: `eval echo $rclocal`
System environment....: ${sysconfig_path:-${sysconfig}}
Random seed path......: $random_path
C Compiler............: $CC $CFLAGS $CPPFLAGS $LDFLAGS $LIBS
Linker................: $LD $LLDP_LDFLAGS $LLDP_BIN_LDFLAGS $LDFLAGS $LIBS
Behavior:
Boot heading..........: $heading
Plugins...............: $plugins
RTC restore date......: $RTC_DATE
RTC fallback file.....: $rtc_file
Optional features:
Install doc/..........: $enable_doc
Install contrib/......: $enable_contrib
Bash completion.......: $bash_completion_dir
Built-in keventd......: $with_keventd
Built-in sulogin......: $with_sulogin $sulogin
Built-in watchdogd....: $with_watchdog $watchdog
Built-in logrotate....: $enable_logrotate
Replacement libsystemd: $with_libsystemd
Use cgroup v2.........: $enable_cgroup
Parse kernel cmdline..: $enable_kernel_cmdline
Keep kernel logging...: $enable_kernel_logging
Skip fsck check.......: $enable_fastboot
Run fsck fix mode.....: $enable_fsckfix
Redirect output.......: $enable_redirect
Rescue mode...........: $enable_rescue
Default hostname......: $hostname
Default group.........: $group
Default runlevel......: $runlevel
------------- Compiler version --------------
$($CC --version || true)
-------------- Linker version ---------------
$($LD --version || true)
---------------------------------------------
Check the above options and compile with:
${MAKE-make}
EOF
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