In GCC 7 the -Wall infers the new -Wformat-truncation which finds
problems with string truncation in functions like snprintf().
This patch suppresses the warning by allowing only a subset of the
parent inetd service description to be copied to the child connection.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
In GCC 7 the -Wall infers the new -Wformat-truncation which finds
problems with string truncation in functions like snprintf().
This patch fixes a possibly problem in path name creation which,
combined with the scandir() function, might cause loss of .conf
files, failure to call run-parts properly, and kill services at
shutdown.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
In GCC 7 the -Wall infers the new -Wformat-truncation which finds
problems with string truncation in functions like snprintf().
This patch fixes a problem in condition parsing for very long
PID filenames which might be truncated in internal buffers
causing a mismatch in Finit condition tracking.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
In GCC 7 the -Wextra infers the new -Wimplicit-fallthrough which can be
suppressed by adding a simple comment
/* fallthrough */
Which we had, but was too verbose (and misspelled) for GCC to notice.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
In commit 34a1524 the start of udevd was refactored to allow it to be a
properly monitored service caused systems using eudev to malfunction.
This patch reverts part of that commit and adds a workaround found when
trying to reproduce issue #82 on Void Linux:
- Start a temporary udevd in the background
- Call udevadm to trigger bringup of all subsystems and devices
- Wait for everything to settle
- Tell temporary udevd to exit (new)
In the world of `mdev` this song and dance act is not required.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Finit has long since supported an @user:group syntax to services, tasks,
and run stanzas. Setting UID was implemented at that time, but setting
GID never was. This patch fixes that oversight.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes an invalid use of strpbrk() causing all cond
sub-commands, except initctl cond show, to fail.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds a '-' for each runlevel a service/task is not part of.
The resulting listings are easier to read and also makes it clearer to
the user what happens when changing runlevels.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch, similar to the work done in the d-bus plugin, converts the
udevd service from a non-monitored run_interactive() task that forks
itself into the background, to a proper Finit monitored service.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch prevents output of stderr/stdout from services to leak to the
console. Use the 'log' keyword to service/run/task stanza to redirect
output to syslog.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch changes how the D-Bus plugin starts dbus-daemon, from being
started in the background to letting Finit start and monitor it.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
For some reason PPC is much more sensitive than ARM when it comes to
termios changes. This patch fixes a regression in Ctrl-C handling
after login introduced in 907595d when blocking of Ctrl-C was added
to prevent breaking the login-prompt.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch removes the following very annoying warning for TTY devices
not yet available, i.e. plugged-in to the system.
Loading configuration ............................................................................. [ OK ]
[ 11.097414] finit[1]:tty_register():Incomplete or non-existing TTY device given, cannot register.
[ 11.101457] finit[1]:tty_register():Incomplete or non-existing TTY device given, cannot register.
Mounting filesystems .............................................................................. [ OK ]
Finit will not start a getty (built-in or external) if the TTY does not
exist, but having the configuration enabled makes it possible to do a
simple `initctl reload` to activate a plugged in TTY.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
In case the kernel is incapable of handling a reboot,
power-off, or halt request we want to be able to let
the user perform some basic diagnose of the system.
The existing debug messages are good enough, and use
the correct grammar form, to be enabled always.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
When collecting a bootstrap task we need to allow its state machine to
complete before cleaning them out.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
During the runlevel change from S --> 2 the state machine will pause,
waiting to collect all S-only tasks/services, before continuing.
When an S-only task/service is collected we therefore need to call the
state machine again so that it can reassert all conditions properly.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
We should not let PID 1 fail on systems where Linux is built without
CONFIG_SYSVIPC, or the libc does not support shmget()/shmat().
This workaround implements a fallback to using calloc() for PID 1,
which means the initctl tool will not work properly. A better fix
would be to refactor the shm implementation to instead have initctl
call Finit using api.c for each svc_t. This has been added to the
TODO file as future work.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Building finit with a uclibc-ng-toolchain fails with:
```
../src/helpers.h:53:43: error: unknown type name ‘va_list’
void printv (const char *fmt, va_list ap);
```
- Detail limitations in separate section
- Focus on syntax early in document
- Overhaul and simplify introduction
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Enable LXDM using:
initctl enable lxdm
initctl reload
The latter command reloads all /etc/finit.d/*.conf files and starts lxdm
in runlevels 2-5.
Remember to first edit /etc/lxdm/lxdm.conf, necessary to get a session.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch enables support for bootstrap services in /etc/finit.d/
Please note, however, that this does not mean that all configuration
directives are now allowed in /etc/finit.d/*.conf -- the intention is
only to simplify distribution setups.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Restore original file layout somewhat, it's better if we clear the space
at the end of the file for easy `cat BOOTSTRAP.conf >>/etc/finit.conf`
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Finit now supports pipes and redirects in run/task stanzas. Hence, we
can reduce rc.local to an example template.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
A run stanza blocks operation by calling waitpid(), so it will never be
caught by the service_monitor() function. Hence, we need to clean up
any bootsrap calls after waitpid(), or at least perform a manual state
change.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch extends the capabilities of task and run .conf stanzas by
enabling pipes and redirects.
Example:
task [s] echo "foo" | cat >/tmp/bar
run [s] echo "$HOME" >/tmp/secret
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- Show progress when booting
- Use noclear + nowait on TTY's
- Update `loadkmap` args
Works on Alpine Linux 3.4 .. 3.6
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch aligns the two tty configuration stanzas, thus clear and wait
are now the default for both.
tty [LVLS] <DEV> [BAUD] [noclear] [nowait] [TERM]
tty [LVLS] <CMD> <ARGS> [noclear] [nowait]
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch makes it possible to disable the "Please press Enter" prompt
when using an external getty. Simply append `nowait` to the .conf entry
and Finit will spawn the getty immediately.
A future patch will add support for `noclear` as well to external getty,
as well as a change in default (=> `wait`) for the built-in getty.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
It is strongly recommended to instead use the service stanza to start
XDM/GDM, or use startx after a regular login.
Note: the `user NAME` setting was always reserved for use with startx
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The emergency shell is just a Finit debug mode. This patch adresses a
concern from GitHub issue #76, with zombie processes in this mode.
Emergency shell could be further improved, e.g. informing the real Finit
process of each collected child (zombie) to be restarted if needed.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
In commit eec32e2 support for reloading TTY configurations was added.
This patch is a follow-up to that with support for cleaning up and
removing allocated TTYs.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
With the new scheme using /etc/finit.d/available/, and symlinks from
there to the enabled directory, we need to check mtime of .conf files
using stat(), not lstat() which we need to check if .conf is a symlink.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch disables console heading and bootup progress messages by
default. Use --enable-progress to get the old behavior back, or try
the new HOOK_BANNER and HOOK_SVC_UP to run a custom progress.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
When the TTY fallback mechanism is enabled tty_fallback() prints this
annoying debug message whenever *any* is process is collected by PID 1:
"Not starting fallback (%d) shell, lost pid %d", fallback, lost"
This patch removes it, and a two other useless debug messages.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch moves the plugin loader much earlier, making it possible to
provide a custom banner/logo in a plugin.
To facilitate this move we need to also move banner later and parsing
of the kernel cmdline earlier, right after mouting /proc.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch changes the traditional look of the Finit boot sequence.
Now we stick to the screen width probed by screen_init(), or max
132 chars.
Also, some minor cleanup of the currently unused print_timestamp()
method used by printv() when showing [ OK ] or [FAIL] of services
at boot.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch introduces the screen_width() method from the SMCRoute
project. The code is hereby also available under MIT/X11.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Since at least a44daf2 both run() and run_interactive() can access all
system tools in _PATH_STDPATH. A system that uses non-standard paths,
e.g. /system/bin and /apps/bin, should update _PATH_STDPATH.
For reference, see issue #69 and PRs #70 and #72.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch implemements a new feature of libite v1.9.1, whichp(), which
instead of fexist() that requires an absolute path, searches $PATH.
For reference, see issue #69 and PRs #70 and #72.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Ways to log:
- Set debug, using kernel cmdline, or edit the sources
- Change loglevel severity, default blocks > LOG_NOTICE
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The generic term for a non-running service is blocked, but a service may
be blocked for several different reasons. When a user stops a service
with `initctl stop` the intuitive expected output from `initctl show` is
"stopped" not "blocked".
When the user later restarts the service with `initctl start` it may of
course be blocked due to wrong runlevel or a missing condition. As can
be expected from the service's configuration.
The rest of the patch refactors the internal API names a bit to reflect
this change.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch is a follow-up to 1f1c2e0 which introduced the new semantics
for the very confusing quiet and silent modes.
The initial idea was to loosely follow the kernel cmdline 'quiet' option
and as a working concept this was good. The resulting code, however,
became unnecessarily complex and the configure options impossible to
explain.
With this patch the quiet mode, and thus the --disable-quiet configure
option, is removed. Finit now defaults to a sane behavior: services are
shown only at startup. The --enable-silent option works like it did
before, silencing everything.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch is the first in a series of changes to clean up the internal
logging APIs of Finit:
1. Convert log macros to use logit() for everything (this patch)
2. Set correct syslog() log level based on debug flag
3. Do closelog()/openlog() when toggling debug flag to control LOG_PERROR
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds support for enabling and disabling services in
/etc/finit.d/ by adding another subdirectory:
/etc/finit.d/available
Enabled service/run/task stanzas are by convention symlinked
to the parent dir. The initctl tool has three new convenience
commands to facilitate operating with this:
initctl list
initctl enable <CONF>
initctl disable <CONF>
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
getprotobyname() returns p_proto in host endian, so it should not be
converted with ntoh. (Note: getservbyname() on the other hand does
return s_port in network endian)
Signed-off-by: Petrus Hellgren <petrus.hellgren@westermo.se>
Check first ifup exists before using it since
this is really something only exits on some
distros an in different ways. Debian/Ubunu has
an package for this while others have it in the
initscripts package(s) , meaning the file can be
around even without the prog.
Signed-off-by: crazy <crazy@frugalware.org>
This should allow us to run 'prog' without
absolute paths. Eg:
run("/bin/foo"); -> run("foo");
However we still need absolute PATH for
checking since fexist() need full path right now.
Signed-off-by: crazy <crazy@frugalware.org>
That should never be needed , however I saw
already systems with broken paths.h so better
have something around in case something breaks.
Signed-off-by: crazy <crazy@frugalware.org>
Also, update the service help text in doc/config.md to include info on
both runlevels and explain the condition in the listed example.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch to the logrotate() function extends the log rotattion of a
file with a gzip of .2 and older log files. If gzip is not available
in $PATH then @num files are left uncompressed.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds a simple log-rotate function to the UTMP, WTMP, BTMP,
and lastlog files. Enabled by default, disable with:
configure --disable-logrotate
Even though it can rotate /run/utmp it is unlikely this file will grow
that much during a system's uptime.
The hard-coded defaults are to keep up to two (2) previous versions
of the files and rotate on file size >= 100k.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
For issue #64 we need to have /proc/mounts, or /etc/mtab but that's
usually symlinked to /proc/mounts.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Remove verbose of initctl cond, and replace it with 'initctl cond dump'
Show all conditions if they are in flux/on even if there are no other
services depending on this condition.
Signed-off-by: Mattias Walström <lazzer@gmail.com>
We have repeatedly seen use-cases when sub-second resolution for
updatating the mtime of files have been needed. Yes, all those
cases have been Autobots.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch improves the error handling of initctl so that it returns
non-zero if a service does not exist.
$ initctl <start|stop|restart> SVC
$ echo $?
1
In verbose mode an error message is also returned:
$ initctl -v <start|stop|restart> SVC
No such service SVC
$ echo $?
1
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch breaks out the JOB:ID parser from api.c, placing it in a new
function called svc_parse_jobstr().
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
We want to emulate the behavior of the reboot() syscall on success.
Primarily for a coherency/symmetry, but also to prevent printing
a new shell prompt in the middle of system shutdown messages.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
When finit completes quicker than one second it will
not find if any configurations has been changed.
Signed-off-by: Mattias Walström <mattias.walstrom@westermo.se>
If a service depend on the service last in the list the application
will be kept in flux state forever.
Signed-off-by: Mattias Walström <mattias.walstrom@westermo.se>
This patch changes the confusing logic in all #ifndef INETD_DISABLED
statements to instead be #ifdef INETD_ENABLED, which is quite a bit
more readable.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This (initial) patch for issue #56 adds a very basic validation of the
device before attempting to start a getty on it.
TODO: Verify a USB/serial device can be plugged in at any point at
runtime, either automatically start getty or by `initctl reload`
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch (untested) patch calls `service_reload_dynamic()` after both
run-parts (if directory exists) and after `/etc/rc.local` has run. The
intention is to reload any services modified/added/removed by a user
script so the system is properly up to date.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch allows all services to go from READY -> RUNNING, this to
prevent started inetd connections from being treated as "stubborn"
and inadvertently killing them off after a few seconds.
The same actually applies to run/task applications.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes issue #51 by reverting b4b63d3, which is not needed
anymore since service callbacks have been removed from Finit3.
The `sig_unblock()` function, called for each forked off child, should
now be balanced with caught signals.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
We can safely skip tmpfs, nothing to clean from previous boot there.
In fact, if we clean it we may spoil things for udev, which saves
pre-boot files in /run/udev.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch removes the long standing Watchdog daemon from the TODO list.
We now have a bare-bones watchdog service built-in to Finit, with
support for handing over to an external, and possibly more advanced,
using the initctl API.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
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>
To prevent returning the prompt too soon, and thereby messing up the
output from Finit, wait a bit after successful delivery of signal to
reboot/halt/poweroff.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds initial support for registering a watchdog daemon with
Finit. Needed for situations when you want the system to actually be
rebooted by the watchdog timer (WDT) circuitry rather than the kernel.
The initctl API has been extended with a INIT_CMD_WDOG_HELLO command
that is used to both register and "ping" Finit periodically. As long as
Finit responds (with an ACK) the watchdog daemon knows Finit is alive.
At shutdown Finit stops all services (except kernel threads and daemons
marked with @ in the first character of their process name) and, if a
watchdog has registered, SIGPWR is sent to it when Finit has finished
unmounting etc., just prior to kernel reboot/halt/poweroff.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Now that we change runlevel at shutdown/reboot, we also need to restore
terse mode before calling the shutdown hooks, like before.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch replaces kill(-1, signo) with a more fine grained
do_kill(signo) that traverses each /proc/PID, skipping kernel
threads and special [0][0] == '@' processes.
The reason for this patch is not only future compliance with
freedesktop.org standards, but also a way of not killing any
critical processes at shutdown, e.g. mdadm or watchdogd.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The shutdown hook is supposed to run right before services start
receiving SIGTERM. Change due to previous refactor.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch moves both the definition and the call to bootclean() from
finit.c to the bootmisc plugin. We want to call bootclean() *after*
any /run and /var file systems have been mounted.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- New requirements section about what Finit expects from the system
- Remove commented out `udevadm settle` code, now in README
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
On systems with systemd-udev/udevadm the trigger addition of devices at
boot wrecks havoc of /dev/console. This patch forces Finit to go silent
by default on such systems. Far from ideal, but since the actual root
cause for this messup is unknown this will have to do for now.
Also, add a settle timeout of 120 sec to the udev device tree population.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch factors out the fgetint() fallback code for parsing
/etc/services and /etc/protocols. Useful on systems with a
malfunctioning C library.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Without trigger, kernel modules won't be loaded automatically. Also
devices are not managed. For example, i915 was not loaded after boot
and my network card was not renamed from wlan0 to wlp3s0, which means
it was not handled properly by udev.
Signed-off-by: Wang He <xw897002528@gmail.com>
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes a long-standing issue with how Finit handles shutdown,
reboot and poweroff -- and even runlevel changes to runlevel 0 and 6.
Prior to this patch sig.c:do_shutdown() was called immediately on any
of the above events, disregarding any services that a user might have
wanted to run as part of the shutdown/reboot.
With this change the handling is unified in all frontends to instead
do a runlevel change followed by the do_shutdown() action.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The /etc/nologin file must be set as soon as the runlevel change to
0/1/6 comes in, not when done with runlevel change and services have
been started, if any.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
As a last ditch effort to understand why an embedded system doesn't
boot, the operator should be able to see as much logs as possible
when enabling --debug mode on the kernel command line.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds an `--enable-fallback-shell` option to confiugre.
When enabled Finit will start `/bin/sh` on the console, but only
if there are no active TTYs running in the current runlevel.
With this it will be easier to do board bringup with Finit, but it also
enables using the fallback shell in a rescue mode (runlevel) where no
TTYs are allowed to run.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Also changes the default to set $HOME to / instead of nothing. This can
of course be improved immensely. Pull requests always welcome ;-)
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch removes the now heavily outdated (and non-working) support
for callback plugins. I.e. plugins that attach themselves to services
listed in /etc/finit.conf and can be queried to determine if a service
should be started or stopped.
The Finit3 support for adding/removing services at runtime with plain
text *.conf files in /etc/finit.d and `initctl reload`, this old, and
rather cumbersome service callback feature, is not longer supported.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Add support for registering callbacks to be called after a given
timeout.
Use this to implement forceful termination of services that refuse to
terminate upon receiving a SIGTERM. If the service PID is not collected
within 3 seconds, send a SIGKILL to it.
Also, rework restarting of crashing services. When a service crashes for
the first time, try to restart it immediately. If it crashes again, wait
a few seconds before trying again. Just as before, if it continues to
crash, block the service.
This patch prevents double critical/error messages from being printed on
the console when there is no syslog daemon running yet.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Delay setup of initctl plugin to after the base filesystems are up and
after the bootmisc plugin has run.
This patch factors out the I/O initialization of plugins so it does not
have to run when plugins are loaded. Instead, plugins can now call this
API to register an I/O callback when they are ready.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
In UTMP a terminating zero in string fields is optional, so we need to
take that into account when preparing entrys.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch makes Finit require libuEv v1.4.2, a minor bugfix update, and
libite (-lite) v1.8.2, which is quite a bit more than just a few bug
fixes. The most relevant fixes are the removal of implicit logging for
touch(), makedir(), makefifo(), and erase() inline functions. The
release also removed implicit logging to stderr on error, as well as a
a few build fixes for running on musl libc.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds a very special debug mode to Finit. With this feature
enabled the actual duties of PID 1 is forked off early to a child. If
that child ever dies, usually due to a SIGSEGV, this wakes up the real
PID 1 which lauches a debug shell on the console.
Remember to disable 'quiet' and enable '--debug' on the kernel command
line to get all the debug logs -- which these days goes into the kernel
log in /dev/kmsg -- simply `cat /dev/kmsg` and use Ctrl-C to get the
shell prompt back.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Very early, before syslogd has started, we have traditionally been
forced to use stdout/stderr for debug, warning and error messages.
With this patch we can now rely on /dev/kmsg to preserve all logs
from early Finit problems. When syslogd/klogd starts up they read
/dev/kmsg and copy logs to /var/log/* files.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- Refactor getent() for improved separation and readability
- Warn and exit if /etc/protocols or /etc/services is missing
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Adjust debug levels slightly and add _w() macro for LOG_WARNING,
useful when having /dev/kmsg as backend. The latter outputs any
log <= LOG_ERR to console as well.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes a build problem when configured without inetd support.
Signed-off-by: Markus Svilans <msvilans@aeonyx.ca>
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- Add support for SysV init setenv to activate poweroff
- Update help text considerably to be more helpful
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The UTMP db tracks currently logged in users and WTMP is an audit trail
of all user logins and logouts, as well as runlevel changes and reboot.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The new logit() function takes care to print to stderr if syslogd has
not yet started. The _d(), _e(), and _pe() macros have an additional
requirement: to always print on stderr.
After the boot we also want to see what happned during, so this patch
simply adds syslog() support to _d(), _e(), and _pe().
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch removes internal logging macros and adds support for logging
to stderr until a syslogd is up and running, i.e. /dev/log appears.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch removes accounting for all processes to instead implement the
traditional SysV getty accounting. (Telnet/SSH et al maintain their own
accounding for UTMP.)
TODO: WTMP support
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes the /etc/grub.d/40_custom generation for the Debian
sample so that it properly extracts the UUID For /boot and /
Note: the maintenance free symlinks /vmlinuz and /initrd.img may not
work properly with /boot on a separate partition or disk. If only
the symlinks where in /boot as well ...
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Instead of ugly #ifdefs we now probe for mdev or udevd at runtime. Take
care to check for udev-finalize and location of udevd, it differs a lot
between distros.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds initial support for handling MD RAID arrays. Adding
a pass at the very end of the shutdown sequence to signal any external
RAID controller to clear its state before we proceed to halt/reboot.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds support for a more fine grained approach to what
filesystems are unmounted at shutdown/reboot. This so we later
can add support for `mdadm --wait-clean --scan`, which relies on
/proc, /sys, and /dev being there before we call reboot().
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Also, this code will be refactored soon to be a part of the finit
binary, like telinit, and then we will be called after unmount to
do a forced halt/reboot/poweroff.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch is a complete rewrite of the Finit reboot command. Not only
does it bring it up to speed with the new signal model, but it also adds
new features like poweroff, halt, and suspend -- including a forced mode
that goes for reboot(2) immediately.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Still TODO, replace `run_interactive()` start of dbus-daemon with a
proper service. Possibly only service_register() is needed.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes the ordering of UTMP events. The first event that is
expected in /var/run/utmp is reboot, next is the runlevel change to
the configured runlevel, e.g. from S --> 2.
Let the bootmisc plugin handle this, it knows when /var/run/utmp has
been created and is writable. It is not the eact boot time, but close
enough for most usees.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds support for initializing /var/run/utmp with the initial
reboot as well as a shutdown record in the UTMP db.
Also, the run level change now properly records ~ and ~~ as line and id,
respectively, and the kernel release and time of each UTMP record is now
set properly.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Minor coding style cleanup, code simplification, and change service
'crashing' status text to 'crashed' to fit column width.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Simple wrappers for the signals Finit responds to. Will need complete
rewrite when support for delayed reboot/halt is added.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The condition flux state does not work like that, so keeping
this sub-command is only confusing to the user.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
These scripts help a user to configure, build, and install Finit
correctly on a Debian 8 (Jessie) server install.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The fs.fs_type is only for *BSD, we hard-code it to "rw"
in the meantime. Should be safe in most cases.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The debug mode cannot be used in run_interactive() that early, so we
must disable it during the complete fsck run.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds support for the following /etc/fstab API's on systems
that do not have them, e.g. musl libc on Alpine Linux.
- setfsent()
- getfsent(), and
- endfsent()
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Run fsck much earlier, as soon as we can in fact.
The first 13 characters of the UUID, label or device name should
be sufficient to identify the device, without violating max width
of 78 chars.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds support for running fsck on all file systems listed in
/etc/fstab with a passno > 0. The fsck runs sequentially, starting with
the root fs (passno 1).
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Disabled until we decide on config to disable/enable. It is quite
annoying to not be able to see the boot messages with it on ...
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- Plugins without declared name registered with full path + ext
=> Strip path and extension
- Plugins registered with __NAME__ => strip extension
- Do *not* call dlclose() from destructor, must be called by Finit
Also, some minor cleanup and code simplifcation.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- Fix compat INIT_CMD_ defines so Finit clients can talk to SysV init
- Add setenv support, only for INIT_HALT={POWERDOWN,HALT} to runlevel 6
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adopts the BusyBox init signals for handling halt, reboot,
and poweroff. The SIGINT and SIGPWR signals still behave the same as
before, even though they likely will become configurable in a future
release.
Note: the disabling of Ctrl-Alt-Delete (SIGINT) is also removed!
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
That's maybe a bit unfair. This patch implements a brief version of
what is really needed to safely unmount all file systems on a modern
Linux distribution. Yes, it's this insane. (Who am I kidding, it's
worse! Just have a look at the ancient scrolls hidden in your /etc!)
Here is where we use the new plugin_exit() and api_exit() API's from an
earlier patch. Making sure to exit and close any kernel descriptors.
Then follows a bizarre spell cast on leaking descriptors, rebooting in
a child, remounting / as read-only, and a whole slew of other R rated
stuff to prevent mount/umount from returning 32 ...
Stay safe people, use protection always!
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
FIFOs, PID files, and other non-devices belong in /var/run (or /run
these days), not /dev -- as per FHS. Compat with Debian SysV init.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The TTY handling in Finit has always been a bit of a patch work. This
commit is an attempt at a first cleanup and simplification.
Included is a brand new built-in getty which should work fine on both
virtual and serial consoles. It is however completely untested on the
latter serial consoles.
Still TODO: add support for /etc/securetty, add support for actually
setting TERM when calling /bin/login.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Embedded Linux systems usually employ BusyBox mdev. This patch assumes
that all non-embedded systems employ udev. Adding support for cleaning
up the udev db after the initramfs, or mounting /dev if that not done.
It also runs the udev-finish script at the end.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Look for 'auto' *and* 'allow-hotplug' in /etc/network/interfaces when
bringing up Debian/BusyBox interfaces at boot.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
If the user specifies no 'tty /dev/ttyN' in finit.conf this code
took upon itself to add a backdoor to the system. Let's remove
it and rely on the operator deciding what is best practise.
With this patch no getty, or fallback shell, will be started if
no tty line in finit.conf is available.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds prototype support for the Debian/Ubuntu/Busybox network
configuration file /etc/netork/interfaces. If this file exists Finit
will call `ifup` for each (non-commented-out) interface marked `auto`.
With this implementation we block boot until all ifup commands have
returned, which is less than ideal. A better approach would be to ifup
only loopback and create deferred tasklets to be run in parallel with
the rest of the boot.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes a long standing problem with TTY's. The original code
tried to workaround a limitation in the console of some embedded systems
that was detrimental on actual TTYs.
As an added benefit, the console specific "Press Enter" prompt for the
console port is now available on all TTYs -- meaning no getty needs to
be started and kept needlessly in the background until it is needed.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
We never get any NEWLINK message for lo since it as an interface exists
very early. So we add this workaround when lo comes up so services can
depend on exists for lo as well as for other interfaces.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The introduction of conditions to Finit only focused on
services (monitored daemons) and not parallell one-shot
tasks or blocking one-shot runs.
This patch enables condition support for 'task' and 'run'
stanzas in both finit.conf and finit.d
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
By default the urandom plugin will use /var/lib/misc/random-seed across
reboots to seed /dev/urandom at boot.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Do not tag log messages with service description, but use process name.
Possibly add :ID later to denote instance if multiple instances exist.
Also, add priority daemon.info log level.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
If user has no start script fall back to set up at least loopback. This
fixes (at least) a problem on Alpine Linux where `ifup -a` returns error
if `lo` is already up.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Modern systems today use a RAM disk for /run and /run/lock, with
symlinks to the FHS locations in /var/run and /var/lock. See the
following link for details http://lwn.net/Articles/436012/
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds protection against a common inetd attack vector wherein
the reply port to UDP inetd services is forged to an internal inetd
service port.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch replaces the old 'initctl emit <EV>' idea with a more
full blown condition generator:
initctl cond <set|clear|flux> <COND>
This aligns better with terminology used elsewhere in the new Finit
service state machine and dependency handling already documented.
The 'flux' sub-command is mostly intended for simulation/test of
Finit itself and should perhaps not be documented.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This is a first effort at cleaning up and consolidating all information
about the new service state machine and how conditions control this
state machine.
Also, clarified and added sections for all documents regarding how
services and conditions relate.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Some vendors provide their own Netlink plugin to Finit. This patch
makes it possible to disable the default netlink plugin from being
built. However, even before this patch it was possible to overload
the plugin. This just discards it from being built.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The AC_PLUGIN() could not properly handle if a plugin is to be enabled
by default. This patch adds support for outputting the correct help
text.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Libraries and system headers should be included with <> instead of "".
This makes a great difference for the automatic dependency tracking.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Prune standard configure flags and focus on the most important, whatever
they may be. Mention --disable-inetd and describe how --enable-static
works.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes regressions in --enable-static introduced with the
conversion to the GNU configure and build system.
The default link flag to libtool is set to -static-libtool-libs, meaning
not a fully static build -- the C library will still be used as an .so
which is usually what people want -- whereas libite (-lite) and libuEv
are linked statically.
$ ldd /sbin/finit /sbin/initctl
/sbin/finit:
linux-vdso.so.1 => (0x00007ffffde62000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6979ad8000)
/lib64/ld-linux-x86-64.so.2 (0x000055d893e96000)
/sbin/initctl:
linux-vdso.so.1 => (0x00007ffed0dd6000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007feb3a29c000)
/lib64/ld-linux-x86-64.so.2 (0x00005556ebd2b000)
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Now that we have a proper GNU configure script there is no such thing as
lightweight, and the respected environment variables are listed at the
end of `./configure --help`
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch corrects a long standing issue with Finit. System initial
bootstrap runlevel must be set to 'S' (0), not the configured fallback
runlevel 'RUNLEVEL', which likely is '2'.
Also, minor cleanup, reduce code duplication.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The new state machine handling is not necessary to export to external
plugins, so this patch reduces the exposure of the global variable sm
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Setting O_NONBLOCK on an inetd server socket may fail, we
must check for this or the event loop may stall and block
Finit completely.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Make sure to check return value of remove(), it may actually signal
something useful. Log useful errors.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
- Must check return value from open(), found by Coverity Scan
- Minor refactor (and cleanup) to reduce code complexity
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Must initialize init_request buffer to zero before communicating with
Finit. Found by Coverity Scan.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
If no console is configured, then the following code gets executed:
int conf_parse_config(void)
{
...
char *fallback = FALLBACK_SHELL;
...
tty_register(fallback);
...
}
int tty_register(char *line)
{
...
cmd = strtok(line, " ");
...
}
FALLBACK_SHELL is constant character array and strtok tries to modify
the first argument, which causes a crash.
Finit <3 did not use GNU configure and build system. This patch adds an
install-dev rule that is used by some to install required headers for
external plugin developers.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Add support for changing the initial hard and soft resource limits for
finit and any processes it launches.
See /etc/finit.conf section in README.md for more information.
When a service changes type from inetd to a regular daemon we must make
sure to first deregister the currently running inetd service properly.
Example: a system boots up with httpd.conf as an inetd service, so Finit
opens a socket 0.0.0.0:80 pending connections to start `httpd -i`.
After a while a user changes httpd.conf to be a regular service and
calls `initctl reload`. Without this patch the socket will remain
open and prevent httpd from opening and binding to the same port.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes a problem with lingering inet sockets when inetd
services are removed. When removing an inetd service we must stop
the watcher and close the socket.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
We cannot clear the svc_t memory because other applications may have
connected to the same shared memory. An application may be inspecting
the current list of services (initctl) and pulling the rug from under
them could cause some really unpredicatble results.
This reverts commit 06d1e90bac.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Both the original MIT Athena inetd and the GNU inetutils inetd only keep
a backlog of 10 connections in listen() for TCP sockets. This patch
adjusts the Finit hard coded default accordingly.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
When starting an inetd service in verbose mode we print a progress
message to the console appended with "Connection". This patch simply
changes that to append with "connection" in lower case.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes several issues related to the problem of launching
UDP inetd services:
- Make sure to disable O_NONBLOCK on the socket before passing it to
the inetd service, that's what is expected. This goes for both UDP
and TCP (accepted) connections -- there is no guarantee even for TCP
sockets that they do *not* inherit the parent socket's flags.
- Mark the UDP inetd parent's SVC as busy and stop its watcher before
starting the child task to service the connection. The watcher must
be stopped or multiple child tasks may be spawned!
- Only copy the most relevant parts to the UDP task. In particular
must *not* copy the libuEv watcher data to the task!
- With the child task done and the parent inetd service unblocked we
must restore O_NONBLOCK to the socket before restarting the watcher
When a UDP inetd service connection is handled we create a child task
to service the request, meanwhile we block the parent service. There
was a problem with blocking the parent since we called inetd_stop(),
which both did a shutdown() and close() of the socket ... this patch
introduces separate handling of blocked (busy) inetd services in the
inetd_stop() function and also make sure to handle restarting the
parent watcher in inetd_start() when the child task is done.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Both the new initctl API and the new pidfile watcher plugin failed to
set CLOEXEC on their sockets. This caused forked-off and exec()'d
children to inherit all these descriptors.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Patrick Stewart added the optional `log` keyword to service, run, task
and inetd stanzas in 889bce1. It redirects stdout/stderr to syslog
using the logger tool. This addition to the README is mainly just a
place holder so it's not forgotten before the upcoming README refactor.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Adds an extra 'log' parameter to services that routes STDOUT and STDERR to syslog.
Uses a PTY rather than a pipe, as this prevents log messages hanging around in a buffer indefinitely.
In service_start() the SIGCHLD handler is reenabled before calling complete(), so the service could be reaped by the SIGCHLD handler leaving service_start() waiting forever
Also remove code that duplicates sig_unblock()
The alsa-utils, dbus, lost (PID), resolvconf, and x11-common plugins are
rarely used in the main use-case for Finit (embedded head-less systems).
This patch disables them by default and makes them possible to enable by
configure --enable-$PLUGIN switches.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Slightly more readable code and fix issue with --enable-$PLUGIN not
biting properly in the generated Makefile.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch replaces the verbose and kernel-quiet runtime options with
a (hopefully) more useful quiet and silent modes of operation.
By default Finit progressively shows all services it starts at boot, but
when boot has completed and services are started/restarted Finit prints
nothing. If `--disable-quiet` is given all started/restared/stoppping
messages are shown even after boot.
However, if `--enable-silent` is given Finit is completely silent even
at boot, no progress is shown, until the first service is started, which
on most systems is login.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Remove confusing `--with-aix-soname` option to configure. Replace with
hard-coded `aix-soname=both` => shared + static archives are build as to
be expected.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch prevents too early start of services depending on other
services. E.g, if service B depends on A then we must wait for A to
signal that it is ready before we allow B to start -- in a Finit based
system A does this by creating, or touching (updating mtime), its PID
file. Services (like A) that support SIGHUP should call utime(), or
utimensat(), on the PID file at the end of their SIGHUP handler.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
From now on the user is required to have libuEv and libite installed
before building and installing finit. This is for maintenance reasons.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch adds support for the runtime `HOOK_SVC_LOST` and the (very
noisy) *example* plugin `lost.so`.
Customer request.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
To distinguish between variables and functions in comments Finit use ()
at the end of function names.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch builds Finit dynamically, including both plugins and GIT
submodules for libite and libuev. This causes libite.so and libuev.so
to be installed in a public path, which is not good if the user has
other versions of the same libraries already installed.
The correct fix is to remove the GIT submodules for now and require
users of Finit to build and install libite and libuev separately.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
Flush any existing filter rules when a configuration file is
updated. Otherwise filters are simply appended to the old
configuration which can cause finit to accept connections on
interfaces that are blocked in the new configuration.
Same as for libite, libuev has also changed to autotools, so
call its autogen.sh and configure script in cascade from our
own. Aslo add safeguards to clean/distclean targets so we
do not attempt to enter the libuev subdirectory if it's not
configured.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The new libite uses autotools to build, and since we use it as a GIT
submodule we have to call its autogen.sh before we call the configure
script, from within the Finit configure script. We may have to move
to use autotools even for Finit ...
Also, make sure to only call clean/distclean on libite if the local
version is selected at configure time.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
When a service's condition transitions to `flux`, put it in the
waiting state, even if it does not support SIGHUP. That way, if the
condition returns to `on` we can simply SIGCONT it. If it goes to
`off` it will still be stop/started as before.
When reloading dynamic services, inetd services deleted marker was not
being cleaned. This caused finit to stop and start all inetd services
at every other reload.
This patch introduces a new service type called SVC_TYPE_INETD_CONN,
which represents a running inetd connection. These are handled in much
the same way as tasks. I.e. they are considered one-time jobs, with
the difference that they are removed upon completion.
When cleaning up removed services, the assumption was made that if a
service was not 'removed', it was 'clean'. In reality, it could also
be 'updated', which was then overwritten, causing services not being
restarted. Don't do that.
As a future precaution, make the dirty field const, only allowing
updates from accessor methods.
During documentation of the state machine, some theoretical problems
where discovered that could have lead finit to spawn a new instance of
a daemon before the previous one had been collected.
Now a service will always go through the STOPPING state when leaving
RUNNING. This ensures that the PID has been collected before any calls
to service_start.
...documenting your work is, apparently, not a bad idea. :)
Old event system has been replaced with a more generic condition
concept. The idea is that finit plugins may provide arbitrary
conditions that services may specify as dependencies that they require
to run.
In order to accomodate this, the service management has been
redesigned to use a state machine.
Parser would erroneously interpret an event specification containing
slashes as an inet service/proto specification.
E.g. "<net/gw>" was interpreted as port "<net" using protocol "gw>".
Stopped services are now (again) listed as "stopped" and halted
services, due to a runlevel change, are listed as "halted". Several
users complained that this change was just not intuitive. I agreee.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
By popular request, this patch adds support for querying status of a
single service. The syntax is similar to that of stop/start/reload.
Both `initctl show ...` and `initctl status ...` is supported.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
When no services were stopped we must ensure to start/SIGHUP any new or
SIGHUP:able services as the last pass of the `initctl reload` cycle.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch fixes a hang when performing a system reconfiguration using
`initctl reload`, `SIGHUP` or running `(f)init q`, which caused Finit
to wait for SIGHUP:able services to stop.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This patch reenables verbose mode at shutdown/reboot, if it was disabled
at boot. This allows the user to see the output from the `urandom.so`
and `hwclock.so` plugins at reboot.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
The urandom.so plugin uncovered that `print_desc()` does not honor the
`verbose` flag. At runtime `print_desc()` et al should no be displaying
anyting when we finit operates in terse mode.
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2015-11-30 19:45:27 +01:00
188 changed files with 11346 additions and 6244 deletions
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.])
# Check for extra arguments or packages
AC_ARG_WITH(heading,
AS_HELP_STRING([--with-heading=GREET], [Display GREET instead of Finit version at boot]),
State Machine
-------------
A service is bound to a state machine that is in one of six (6) states.
For `run`s and `task`s there is an additional end state called `DONE`,
not shown in the diagram for brevity. Services start in the `HALTED`
state.
The current state depends on the two following conditions:
*`E`: Service enabled. In order for `E` to be satisfied, the service
must be allowed to run in the current runlevel and not be stopped.
A service may be stopped, or blocked, for several reasons:
- The user has manually stopped the service using `initctl stop JOB`
- The program exits immediately. I.e. keeps crashing (make sure to use
the 'run this service in the foreground' command line option)
- The binary is missing in the filesystem
*`C`: Service conditions are satisfied:
-`on` (+): The condition is asserted.
-`off` (-): The condition is deasserted.
-`flux` (~): The condition state is unknown.
For a detailed description of conditions, and how to debug them,
see the [Finit Conditions](conditions.md) document.
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Joachim Nilsson