mirror of
https://github.com/troglobit/finit.git
synced 2026-10-01 13:33:09 +07:00
Joachim Nilsson
b674aad802
This patch adds a simple but effective watchdog daemon with support for
handover to an external daemon, should one register using the API.
Disabled by default, enable by:
configure --enable-watchdog
The watchdog forks to the background, opening /dev/watchdog setting a
three second timeout, and kicking every second. At shutdown/reboot the
daemon will receive SIGPWR from Finit to exit and cause a WDT reboot.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
215 lines
8.6 KiB
Plaintext
215 lines
8.6 KiB
Plaintext
AC_INIT(Finit, 3.0-rc1, https://github.com/troglobit/finit/issues, finit, http://troglobit.com/finit.html)
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AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz subdir-objects])
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AM_SILENT_RULES([yes])
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AC_CONFIG_SRCDIR([finit.c])
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AC_CONFIG_HEADER([config.h])
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AC_CONFIG_FILES([Makefile plugins/Makefile])
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# Older versions of autoconf (<2.58) do not have AC_CONFIG_MACRO_DIR()
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#m4_include([m4/plugin.m4])
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#m4_include([m4/expand.m4])
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AC_CONFIG_MACRO_DIR([m4])
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# Change default prefix, we're PID 1 after all ...
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AC_PREFIX_DEFAULT([])
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# Handle building plugins either as dynamically loadable, or built-in
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LT_INIT([shared disable-static dlopen aix-soname=both disable-fast-install])
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# Checks for programs.
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AC_PROG_CC
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AC_PROG_LN_S
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AC_PROG_INSTALL
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# Configuration.
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AC_HEADER_STDC
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AC_CHECK_HEADERS(fstaby.h)
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AC_CHECK_FUNCS(strstr getopt getfsenty)
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# Check for uint[8,16,32]_t
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AC_TYPE_UINT8_T
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AC_TYPE_UINT16_T
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AC_TYPE_UINT32_T
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# Check for required libraries
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PKG_CHECK_MODULES([uev], [libuev >= 1.4.2])
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PKG_CHECK_MODULES([lite], [libite >= 1.8.2])
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# Check for configured Finit features
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AC_ARG_ENABLE(emergency_shell,
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AS_HELP_STRING([--enable-emergency-shell], [Experimental emergency fallback at boot.
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Only use this for debugging very early boot problems with Finit.]))
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AC_ARG_ENABLE(fallback_shell,
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AS_HELP_STRING([--enable-fallback-shell], [Start a shell if no TTYs can start.]))
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AC_ARG_ENABLE(rw-rootfs,
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AS_HELP_STRING([--enable-rw-rootfs], [Remount / R/W at boot, usually not for embedded]))
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AC_ARG_ENABLE(silent,
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AS_HELP_STRING([--enable-silent], [Completely silent operation, not even boot messages]))
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AC_ARG_ENABLE(watchdog,
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AS_HELP_STRING([--enable-watchdog], [Enable built-in watchdog, uses /dev/watchdog]))
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AC_ARG_ENABLE(inetd,
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AS_HELP_STRING([--disable-inetd], [Disable built-in inetd super server, default enabled]))
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AC_ARG_ENABLE(quiet,
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AS_HELP_STRING([--disable-quiet], [Default Finit obeys the kernel quiet option]))
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# Check for extra plugins to enable
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enable_all_plugins=auto
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AC_PLUGIN([alsa-utils], [no], [Save and restore ALSA sound settings using alsactl])
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AC_PLUGIN([dbus], [no], [Setup and start system message bus, D-Bus])
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AC_PLUGIN([inetd-echo], [no], [Inetd plugin: echo server, RFC862])
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AC_PLUGIN([inetd-chargen], [no], [Inetd plugin: character generator, RFC864])
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AC_PLUGIN([inetd-daytime], [no], [Inetd plugin: daytime server, RFC867])
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AC_PLUGIN([inetd-discard], [no], [Inetd plugin: discard server, RFC863])
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AC_PLUGIN([inetd-time], [no], [Inetd plugin: time (rdate) server, RFC868])
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AC_PLUGIN([lost], [no], [Example HOOK_SVC_LOST plugin, very noisy as-is!])
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AC_PLUGIN([resolvconf], [no], [Setup necessary files for resolvconf])
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AC_PLUGIN([x11-common], [no], [Console setup (for X)])
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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.])
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# Check for extra arguments or packages
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AC_ARG_WITH(heading,
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AS_HELP_STRING([--with-heading=GREET], [Display GREET instead of Finit version at boot]),
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[heading=$withval], [heading="$PACKAGE_NAME v$PACKAGE_VERSION"])
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AC_ARG_WITH(fifo,
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AS_HELP_STRING([--with-fifo=FIFO], [FIFO for init/telinit clients, default /var/run/initctl]),
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[fifo=$withval], [fifo=/var/run/initctl])
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AC_ARG_WITH(plugindir,
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AS_HELP_STRING([--with-plugindir=DIR], [Finit plugin directory, default /lib/finit/plugins]),
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[pkglibdir=$withval], [pkglibdir=$libdir/finit/plugins])
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AC_SUBST([pkglibdir])
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AC_ARG_WITH(config,
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AS_HELP_STRING([--with-config=CONFIG], [Finit bootstrap config file, default /etc/finit.conf]),
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[conf=$withval], [conf=$sysconfdir/finit.conf])
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AC_ARG_WITH(rcsd,
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AS_HELP_STRING([--with-rcsd=DIR], [Finit rcS.d/ directory, default /etc/finit.d]),
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[rcsd=$withval], [rcsd=$sysconfdir/finit.d])
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AC_ARG_WITH(rc-local,
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AS_HELP_STRING([--with-rc-local=FILE], [SysV init /etc/rc.local file, default /etc/rc.local]),
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[rclocal=$withval], [rclocal=$sysconfdir/rc.local])
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AC_ARG_WITH(console,
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AS_HELP_STRING([--with-console=DEV], [Console to use, default: /dev/console]),
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[console=$withval], [console=/dev/console])
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AC_ARG_WITH(username,
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AS_HELP_STRING([--with-username=USER], [User for 'startx' .conf option, default: root]),
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[username=$withval], [username=root])
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AC_ARG_WITH(hostname,
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AS_HELP_STRING([--with-hostname=NAME], [If /etc/hostname is missing, default: noname]),
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[hostname=$withval], [hostname=noname])
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AC_ARG_WITH(runlevel,
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AS_HELP_STRING([--with-runlevel=N], [Runlevel to switch to after bootstrap, default: 2]),
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[runlevel=$withval], [runlevel=2])
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AC_ARG_WITH(random-seed,
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AS_HELP_STRING([--with-random-seed=FILE], [Save a random seed for /dev/urandom across reboots, default /var/lib/misc/random-seed]),
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[random_seed=$withval], [random_seed=/var/lib/misc/random-seed])
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### Enable features ###########################################################################
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# Create config.h from selected features and fallback defautls
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AS_IF([test "x$enable_emergency_shell" = "xyes"], [
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AC_DEFINE(EMERGENCY_SHELL, 1, [Fork off init and let PID 1 wait and start /bin/sh if init crashes.])])
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AS_IF([test "x$enable_fallback_shell" = "xyes"], [
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AC_DEFINE(FALLBACK_SHELL, 1, [Start /bin/sh on console if no TTYs.])])
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AS_IF([test "x$enable_rw_rootfs" = "xyes"], [
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AC_DEFINE(REMOUNT_ROOTFS, 1, [Remount / as rw at boot])])
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AS_IF([test "x$enable_silent" = "xyes"], [
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AC_DEFINE(SILENT_MODE, 1, [Completely silent operation, not even boot messages])
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], [
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AC_DEFINE(SILENT_MODE, 0, [Normal output, default])])
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AS_IF([test "x$enable_watchdog" = "xyes"], [
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AC_DEFINE(BUILTIN_WATCHDOG, 1, [Enable built-in watchdog, kicks on /dev/watchdog])])
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### Disable features ###########################################################################
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AS_IF([test "x$enable_inetd" != "xno"], enable_inetd="yes", [
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AC_DEFINE(INETD_DISABLED, 1, [Disable built-in inetd])])
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AS_IF([test "x$enable_quiet" != "xno"], [
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AC_DEFINE(QUIET_MODE, 0, [Will print stopping/starting/etc messages at runtime])
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], [
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AC_DEFINE(QUIET_MODE, 1, [Silent at runtime, after initial boot, default])])
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### With features ##############################################################################
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AS_IF([test "x$with_fifo" != "xno"], [
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AS_IF([test "x$fifo" = "xyes"], [
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fifo='/var/run/initctl'])])
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AC_EXPAND_DIR(lurvig, "$fifo")
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AC_DEFINE_UNQUOTED(FINIT_FIFO, "$lurvig", [FIFO for old style init/telinit client programs])
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AS_IF([test "x$with_config" != "xno"], [
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AS_IF([test "x$config" = "xyes"], [
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conf=$sysconfdir/finit.conf])])
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AC_EXPAND_DIR(lurvig, "$conf")
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AC_DEFINE_UNQUOTED(FINIT_CONF, "$lurvig", [Main Finit configuration file, default /etc/finit.conf])
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AS_IF([test "x$with_rcsd" != "xno"], [
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AS_IF([test "x$rcsd" = "xyes"], [
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rcsd=$sysconfdir/finit.d])])
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AC_EXPAND_DIR(lurvig, "$rcsd")
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AC_DEFINE_UNQUOTED(FINIT_RCSD, "$lurvig", [Finit rcS.d/, default /etc/finit.d])
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AS_IF([test "x$with_rc_local" != "xno"], [
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AS_IF([test "x$rclocal" = "xyes"], [
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rclocal=$sysconfdir/rc.local])])
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AC_EXPAND_DIR(lurvig, "$rclocal")
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AC_DEFINE_UNQUOTED(FINIT_RC_LOCAL, "$lurvig", [Compat SysV /etc/rc.local file to run last at boot.])
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AS_IF([test "x$with_heading" != "xno"], [
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AS_IF([test "x$heading" = "xyes"], [
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heading="$PACKAGE_NAME v$PACKAGE_VERSION"])])
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AC_DEFINE_UNQUOTED(INIT_HEADING, "$heading", [Displayed by Finit at boot])
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AS_IF([test "x$with_console" != "xno"], [
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AS_IF([test "x$console" = "xyes"], [
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console=/dev/console])])
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AC_DEFINE_UNQUOTED(CONSOLE, "$console", [Default console to use])
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AS_IF([test "x$with_username" != "xno"], [
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AS_IF([test "x$username" = "xyes"], [
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username=root])])
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AC_DEFINE_UNQUOTED(DEFUSER, "$username", [Used for startx .conf option])
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AS_IF([test "x$with_hostname" != "xno"], [
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AS_IF([test "x$hostname" = "xyes"], [
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hostname=noname])])
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AC_DEFINE_UNQUOTED(DEFHOST, "$hostname", [For /etc/hostname])
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AS_IF([test "x$with_runlevel" != "xno"], [
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AS_IF([test "x$runlevel" = "xyes"], [
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AC_DEFINE_UNQUOTED(RUNLEVEL, 2, [Default runlevel to start after S])])
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AC_DEFINE_UNQUOTED(RUNLEVEL, $runlevel, [Runlevel to start after S])])
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AS_IF([test "x$with_random_seed" != "xno"], [
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AS_IF([test "x$random_seed" = "xyes"], [
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random_seed=/var/lib/misc/random-seed])
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AC_EXPAND_DIR(lurvig, "$random_seed")
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AC_DEFINE_UNQUOTED(RANDOMSEED, "$lurvig", [Improve random at boot by seeding it with sth from before.])])
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# Control build with automake flags
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AM_CONDITIONAL(STATIC, [test "x$enable_static" = "xyes"])
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AM_CONDITIONAL(INETD, [test "x$enable_inetd" = "xyes"])
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AM_CONDITIONAL(WATCHDOGD, [test "x$enable_watchdog" = "xyes"])
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# Generate all files
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AC_OUTPUT
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