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Author SHA1 Message Date
Joachim Nilsson 9d9b6b5201 Update ChangeLog and bump version for v3.2-rc3
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-23 18:06:25 +02:00
Joachim Nilsson c0b74c5e53 Fix minor build warning for --disable-inetd
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-23 18:06:25 +02:00
Joachim Nilsson 88a6864fd4 Relocate docs/ --> doc/, like most other projects have
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-23 17:53:36 +02:00
Joachim Nilsson 2b2c6aaf4e docs: Relocate GitHub specific files to .github/
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-23 17:46:22 +02:00
Joachim Nilsson 8ed37f5fa0 Always append /ID to cond if run/task/service is declared with :ID
This patch is a follow-up to the idea introduced in 1d6737e, but this
time we make sure to always append the svc ID to conditions if their
.conf has been declared with :ID

Meaning, the following .conf:

    service :0 /sbin/teamd --config-file /etc/teamd-lag0.conf
    service :1 /sbin/teamd --config-file /etc/teamd-lag0.conf

results in the following two conditions:

    svc/sbin/teamd/0
    svc/sbin/teamd/1

With a custom 'name:foo':

    service name:lag :0 /sbin/teamd
    service name:lag :1 /sbin/teamd

the resulting conditions look even prettier:

    svc/lag/0
    svc/lag/1

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-23 15:22:29 +02:00
Joachim Nilsson 8fe4aad53e Make run/task/service :ID optional, default to zero/NULL
This patch makes the ':ID' field optional when registering non-inetd
run/taks/service etc.  It has always been optional in the .conf files,
but internally we defaulted to ':1'.

To open up for more useful conditions we now default to zero/NULL :ID,
meaning the user now *must* keep track of the :ID field if they have
multiple services with the same name.  This should already have been
an issue since such services would likely have conflicted with their
PID files (same name).  So it's unlikely to affect any user severely.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-23 15:21:28 +02:00
Joachim Nilsson 54e5fd2a78 initctl: Show :ID in process listing(s) only if non-zero
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-23 15:14:09 +02:00
Joachim Nilsson 1d6737eac1 Custom conditions include :ID; 'name:foo :bar' => svc/foo/bar
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-23 09:56:30 +02:00
Joachim Nilsson fa0c2f7050 Custom name:foo will now create condition svc/foo w/o path
When registering a service there is the option to set a custom PID file,
and even tell Finit to maintain that PID file in case the daemon doesn't

Until now there hasn't been a way to create custom conditions though ...

This patch leverages the new 'name:foo' argument to tas/run/services to
trigger condition 'svc/foo' (notice lack of path!) when a custom name is
set and either the default, or the custom, PID file is created.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-23 08:57:12 +02:00
Joachim Nilsson 70c0a38307 Provide description to built-in watchdog daemon
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 23:00:21 +02:00
Joachim Nilsson 217df432d6 Add support for 'console' as compat alias to '@console'
This patch makes it possible to declare tty's using the magic keyword 'console',
an alias for the already existing '@console' keyword, which automatically detect
valid console(s) from the console=foo kernel command line.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 22:35:32 +02:00
Joachim Nilsson cfa97253be Fix missing signal.h, required when building for uClibc
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 22:34:19 +02:00
Joachim Nilsson 6462bac249 finit: /run: Follow-up to 7c8b0df7, use MS_ mount flags instead
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 21:28:48 +02:00
Joachim Nilsson b0a1d6bd61 Fix warning message when service doesn't exist: !. -> .
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 21:15:48 +02:00
Joachim Nilsson ee4768ba53 contrib: Let tty1 be available in runlevel 1 on Void and Alpine
The default runlevels are otherwise 2-5.  Usually, however, when
debugging a system you may want to have runlevel 1 (single user
level) available to log in.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 21:15:48 +02:00
Joachim Nilsson c7c0c723d6 Update TTY speed recommendations in README.md and Debian defaults
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 21:15:48 +02:00
Joachim Nilsson b7c1a2a198 Change tty default baud rate: 38400 -> 0, i.e. keep kernel default
This is a more sane default, and also what systems expect, and what
other getty implementations support.  I.e., unless specified, or set
to 0, the tty baud rate is zero -- which means do not change speed
at all.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 21:15:48 +02:00
Joachim Nilsson af45166814 src: Add critical debug messages for debugging condition handling
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 21:15:48 +02:00
Joachim Nilsson 1a881389b2 plugins: pidfile: Handle conditions for PID files in sub-directories
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 21:15:48 +02:00
Joachim Nilsson 6306c757a2 src: svc: Use realpath() to check if untangled file exists
The svc_find_by_pidfile() function may be called with "/run/./foo.pid",
or similar, which must be sanitized before being compared to the PID
file of each svc_t.

This patch introduce realpath() to untangle the paths and check if the
file actually exists.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 21:15:48 +02:00
Joachim Nilsson 3865ce765e src: svc: Handle case where multiple services have same PID file
Services may exist in multiple runlevels, i.e. one behavior at bootstrap
and another at runtime.  If the user does not set a specific PID file to
be used as condition finit can match the wrong svc.

This patch extends svc_find_by_pidfile() to also compare the contents of
the PID file with the PID of the registered svc_t.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 21:15:48 +02:00
Joachim Nilsson aa08221666 configure: Remove --enable-rw-rootfs detect using /etc/fstab instead
This patch removes the --enable-rw-rootfs build flag.  Like OpenRC we
now check /etc/fstab instad; if `/` is listed *and* doesn't have the
`ro` flag set, we remount / read-write.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-22 20:08:52 +02:00
Joachim Nilsson 7c8b0df720 finit: /run: Mount with nosuid,nodev,noexec for added security
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-15 19:28:23 +02:00
Joachim Nilsson cb802cd54e finit: devpts: Mount with recommended ptmxmode=0666
For details https://www.kernel.org/doc/Documentation/filesystems/devpts.txt

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-15 19:28:13 +02:00
Joachim Nilsson 8379b4927b Fix GCC truncation warnings, too small buffers
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-12 00:33:52 +02:00
Joachim Nilsson 6a7f48970c Add cgreaper.sh to dist
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-12 00:29:39 +02:00
Joachim Nilsson d797754ca8 Update ChangeLog and bump version for v3.2-rc2
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-11 23:54:26 +02:00
Joachim Nilsson 770a79fa89 Fix #120: Redirect stdin to /dev/null for services by default
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-11 22:24:33 +02:00
Joachim Nilsson ff24ee3553 Fix #124: reap all children in same process group of dying parent
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-11 21:55:40 +02:00
Joachim Nilsson 25c194ef93 Create unique service cgroup based on name:id
We want to have unique cgroups per instance.  I.e., a DHCP client for
eth0 should have its own cgroup separate from a DHCP client for eth1.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-11 21:50:38 +02:00
Joachim Nilsson 91a9c83928 Send signal to every process in the same process group
When stopping a run/task/service we must send SIGTERM/KILL to all every
process in the same process group.  Otherwise we may end up with stray
processes like 'logit' when log redirection is enabled.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-04-08 18:00:48 +02:00
Joachim Nilsson 9b022ed7a4 Create FUNDING.yml 2020-04-04 13:56:36 +02:00
Joachim Nilsson ca3fc057f2 configure: Change semantics of 33bb6ed, logit enabled by default
The logit tool is not just used by scripts and such, when logger is
absent.  It is also used by Finit internally to redirect logging of
services to syslog and/or log file, with log rotation.

This patch reverts the default to enabled.  Someone explicitly has
to disable logit now to get less functionality.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-03-30 11:56:39 +02:00
Joachim Nilsson bf6e599584 Handle log redirect to syslog when logit is disabled
`--disable-logit` at configure time means redirecting stdout from a
service to a file is completely disabled.  Fallback to `logger` can
not be guaranteed to provide log file rotation, so all logs will be
sent to syslog instead.  In case logger is also missing, a simple
redirect using fork() + syslog() is used as fallback.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-03-30 11:53:43 +02:00
Joachim Nilsson 89c7171223 Refactor run/task/service stdout redirection after setsid() addition
This patch refactors redirect_null() and adds support for redirecting
stdout to console when 'log:console' is enabled.  This was previously
sort of the default, but with the addition of the long-sought-after
setsid() call we needed to change things.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-03-30 10:11:29 +02:00
Joachim Nilsson c41f3f4a06 Call setsid() by default to detach from controlling terminal
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-03-29 17:39:35 +02:00
Yaroslav Syrytsia 0a54a9624a Fix #123: Regression in sysv start/stop scripts
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-03-26 05:16:52 +01:00
Joachim Nilsson 1e238eec61 Increase MAX number of arguments to a service 32 -> 64
Usually a wrapper script is recommended, but for some use-cases it
is more efficient to just be able to use more command line args.

Example application that needs this; udhcpc

Note, we should refactor this to use a dynamically allocated array
instead of this static one.  We relied heavily on static arrays in
Finit 1, when everything had to fit i shm.  This is just legacy.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-03-19 07:50:36 +01:00
Joachim Nilsson 4163527006 Fix run-parts regression introduced in 9a98bff2
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-03-09 14:29:04 +01:00
Joachim Nilsson f06e17ccc6 initctl: Widen status column a bit to fit 'stopping' state
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-03-05 17:51:52 +01:00
Joachim Nilsson fe41b9c4b8 Revert "plugins: pidfile: Simplify and clean up developer debug messages"
This reverts commit 69016bb8f5.
2020-03-02 07:22:15 +01:00
Joachim Nilsson 7cf3ef80db Revert "Travic-CI: Disable clang temporarily for Coverity run"
This reverts commit 27c839bc92.
2020-02-29 17:10:28 +01:00
Joachim Nilsson 69016bb8f5 plugins: pidfile: Simplify and clean up developer debug messages
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-29 17:04:27 +01:00
Joachim Nilsson f7d5b588c9 plugins: pidfile: Factor out directory handling from callback
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-29 16:52:51 +01:00
Joachim Nilsson 0ad99ce054 Fix use-after-close in service.c:redirect(), found by Coverity Scan
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-29 16:42:53 +01:00
Joachim Nilsson 1176961e7b plugins: pidfile: Fix memory leak in pidfile_callback()
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-29 16:40:06 +01:00
Joachim Nilsson 27c839bc92 Travic-CI: Disable clang temporarily for Coverity run
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-29 16:32:05 +01:00
Joachim Nilsson 6149e93aca docs: Update documentation on svc conditions
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-28 17:16:24 +01:00
Joachim Nilsson 4e7baa807e Fix #109: Declare PID file path to dbus-daemon in dbus plugin
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-28 16:50:57 +01:00
Joachim Nilsson 54cfa74042 Fix #109: Support PID files in subdirectories to /var/run
Services, like dbus and teamd for instance, may create their PID files
in a subdirectory of /var/run (today often /run). E.g.,

   - /var/run/teamd/a1.pid    -- For aggregate A1
   - /var/run/dbus/pid
   - /var/run/lxc/foo.pid     -- For container foo

This patch adds support for dynamically adding inotify watchers to any
new subdirectory created in /var/run (discarding too deep directories).

To match services in this directory the run/task/service/sysv stanza
must contain the pid:!/path/to/pidfile.pid syntax.  This pid file name
is also used to create the condition this service asserts using the
following formula:

   svc/ + <dirname of service> + <subdir and file without .pid>

E.g., the case of teamd (above) gives condition 'svc/usr/bin/teamd/a1'

The special case of dbus is interesting, since it may not be a special
case, but rather the norm for services using a subdirectory.  It is
handled as follows; when a new subdirectory is detected, the directory
is scanned for files matching *.pid.  Matching files follow the teamd
case.  The directory is also scanned for 'pid', which then gives us the
condition 'svc/usr/bin/dbus'

One last example, illustrated by lxc-start, where we want to track the
condition for the LXC container foo.  The service stanza:

   service pid:!/run/lxc/foo.pid lxc-start -n foo -F -p /run/lxc/foo.pid -- Container foo

This command has no leading path so the condition is composed entirely
from the PID file location:

   svc/  + '' + lxc/foo => svc/lxc/foo

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-28 16:39:53 +01:00
Joachim Nilsson 97ce0aa519 Rename local variable shadowing variable in outer scope
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-28 14:36:14 +01:00
Joachim Nilsson e72b61c9c9 Minor, fix dead EeePC fastinit link and adjust distro ordering
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-27 23:08:20 +01:00
Joachim Nilsson b66069278f Support for a custom kill:DELAY, default 3 sec
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-26 18:49:47 +01:00
Joachim Nilsson 1192506d43 Support for custom halt:signal, default SIGTERM
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-26 18:28:02 +01:00
Joachim Nilsson decdc1560a Support for monitoring forking services/sysv daemons
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-26 14:10:47 +01:00
Joachim Nilsson f6372de6a9 New function pid_file_read(), returns PID from a pid file
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-26 11:40:44 +01:00
Joachim Nilsson 9052248127 Check for an actual /proc file, not directory, in pid_alive()
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-26 11:40:18 +01:00
Joachim Nilsson 6ab9c8fad6 Allow services to be started without absolute path, trust $PATH
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-26 11:39:17 +01:00
Joachim Nilsson 619bd03551 Drop old comment related to service plugins (now removed)
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-26 11:38:50 +01:00
Joachim Nilsson e301877b16 Follow-up to 12d14aa, configurable auto-reload of .conf files
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-26 11:13:06 +01:00
Joachim Nilsson 3b67afe480 Change semantics for SysV start/stop scripts
If a start/stop script returns OK we classify it as 'started' and leave
it in running state, despite having collected its PID.  This way we can
track what scripts need to be called with 'stop' when changing to a
runlevel they are not declared for.

Also, clean up related debug messages from earlier commit.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-05 12:35:15 +01:00
Joachim Nilsson 9a9a9f4bfe Remove old blocking (!) waitpid() call in service_start()
Remnant from when processes were collected in service_start(), now all
handled by service_monitor() from SIGCHLD and service_step().

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-05 12:32:04 +01:00
Joachim Nilsson f38299bfca Redirect stdout/stderr according to .conf when stopping SysV service
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-05 12:31:21 +01:00
Joachim Nilsson 99901782ff Factor out stdout/stderr redirection to from service_start()
This new function can then be used also by service_stop(), e.g. for SysV
start/stop scripts.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-05 12:30:00 +01:00
Joachim Nilsson 912a336997 Only show [ OK ] startup/status if run tasks exit normally
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-05 07:52:36 +01:00
Joachim Nilsson c3eca9fe8f Save process exit status to svc_t
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-02-05 07:23:06 +01:00
Joachim Nilsson 225510a270 Remove gratuitous newline when finit stops its own log service
This patch fixes an annoying thing when typing reboot/shutdown/poweroff
that caused an extra newline to be printed before displaying services
stopping.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-30 18:29:45 +01:00
Joachim Nilsson 4389fbd8bc Merge pull request #122 from jackuess/fix-inaccurate-sleep
Switch to using nanosleep in favour of sleep
2020-01-30 18:01:46 +01:00
Jacques de Laval 920382518f Switch to using nanosleep in favour of sleep
The remaining sleep time returned by sleep is not accurate enough to be
used as a means to achieve "signal safe"-sleep. nanosleep can be used
in similar fashion instead and is granular enough for our purposes.

This issue was identified during reboot, when Finit is bombarded with
SIGCHLD, aborting the sleep that we do to give daemons a chance to shut
down gracefully. The total delay ended up being less than a second when
in fact two seconds were the intended delay.
2020-01-30 15:39:46 +01:00
Joachim Nilsson 997a699b7e Add more debug logs for /etc/finit.d*/ inotify and exec_runtask()
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-22 15:48:56 +01:00
Joachim Nilsson 21db27ee75 Minor, coding style cleanup
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-22 15:48:42 +01:00
Joachim Nilsson fa0c63070c Add support for starting/stopping SysV init scripts
This patch adds initial support for starting a SysV init script in a
runlevel, and stopping it when leaving a runlevel.

    sysv [LVLS] <COND> /path/to/script.sh -- Optional Description

The SysV /etc/inittab file, which may use /etc/init.d, or /etc/rcN.d,
is still not supported.  A separate plugin would be required for this,
see the documentation for more information.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-22 15:45:08 +01:00
Joachim Nilsson 9bfc9092b8 Document new mdules-load and modprobe plugins
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-15 22:53:24 +01:00
Joachim Nilsson 1c6464a7a8 Add support for cold plugging devices, auto-loading of modules
This patch adds a new plugin to Finit called modprobe.  It probes in
/sys/devices after modalias files and then calls 'modprobe -ab' for
each alias listed.

For hot-plugging we recommend adding the following to /etc/mdev.conf

  $MODALIAS=.*	root:root	0660	@modprobe -b "$MODALIAS"

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-12 20:00:47 +01:00
Joachim Nilsson 51adba4387 Slight update, we won't be releasing in 2018 ...
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-08 12:08:24 +01:00
Joachim Nilsson bb1aed1010 initctl: Follow-up to 6a5f439, don't fail if directory already exists
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-08 12:06:41 +01:00
Joachim Nilsson cf4a1332f9 Revert "Travis-CI: Disable clang for Coverity Scan run"
This reverts commit fc37b854ae.
2020-01-07 20:46:49 +01:00
Joachim Nilsson d70fb85aaf Make MIT badge more readable, teal is also a nice color
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 20:45:53 +01:00
Joachim Nilsson fc37b854ae Travis-CI: Disable clang for Coverity Scan run
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 13:55:03 +01:00
Jonas Holmberg ca210f5431 Add support for logging security related events
This patch introduces the LOG_CONSOLE syslog facility for logging common
events.  In industrial applications aiming for IEC 62443 compliance the
following events are central for system observability:

- Change of runlevel - i.e., starting up, shutting down, upgrade, etc.
  Facility: console, severity: notice
- Service starting
  Facility: console, severity: notice
- Service restarting
  Facility: console, severity: notice
- Service stopping
  Facility: console, severity: notice
- Service failed to start
  Facility: console, severity: warning

The use of facility console for this makes it easier to filter out when
forwarding syslog messages from an embedded system to a remote log sink.
Otherwise messages of facility daemon would be used, which include a lot
more, and mostly irrelevant, information.

Signed-off-by: Jonas Holmberg <jonas.holmberg@westermo.se>
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 13:38:21 +01:00
Jonas Holmberg a19a3c774e Fix issue where svc_find() finds the wrong service
This issue may arise in situations where the name of the service being
compared is a sub-string of the service we want to see if it exist.

Example:
  - Two different services: teamd, teamdagentd
  - They have the same id, 1 being the default if none is specified
  - The service with the shortest name is created first

While checking if the "teamdagentd" service exists we eventually compare
it to the "teamd" service.  Prior to this fix we only compare the names
names with the length of the existing service.  Hence, teamdagentd will
seem to be the same as teamd since the first part of the string is equal
to the existing.

Signed-off-by: Jonas Holmberg <jonas.holmberg@westermo.se>
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 13:23:53 +01:00
Joachim Nilsson a4f1330eae Simplify, no need to check svc->id, is always a valid string
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 13:21:46 +01:00
Joachim Nilsson 38d768ac9e Travis-CI: Enable all -Wfoo CFLAGS globally and build logit in all
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 13:07:27 +01:00
Joachim Nilsson 36b14f9ff7 Travis-CI: Move environment variable PKG_CONFIG_PATH to env:->global:
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 13:06:55 +01:00
Joachim Nilsson bdbd2afc40 Travis-CI: Re-enable clang builds after Coverity Scan run
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 13:05:26 +01:00
Joachim Nilsson 33bb6ed5ac Add --enable-logit to configure, disabled by default
Since sysklogd now ships an excellent enhanced logger tool there is no
need for Finit to provide its own tool for the same purpose by default.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 13:02:06 +01:00
Joachim Nilsson 212083b922 Introduce strterm(), hard-add terminating '\0' at end of buffer
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 03:02:39 +01:00
Joachim Nilsson 55c49a0bf0 Sanitize job[:id] tuple read from UNIX socket using a regex
This is a really tight check for a single "job[:id]" tuple, not much
escapes it, Coverity should be a lot more happy about our addressing
CWE-20 with this one.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 02:51:15 +01:00
Joachim Nilsson b369e1cfa2 Refactor svc_parse_jobstr(), use tokstr() instead of strtok_r()
This is a safer version of strtok() that makes sure we do not step
outside of string bounds.  Coverity complained about this, but was
likely more concerned with the lacking sanitize() and trusting data
read from a UNIX domain socket ...

Note: not only is tokstr() not re-entrant, it is also hard-coded
      to only check for whitespace as token separator.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 02:51:15 +01:00
Joachim Nilsson cfefe23275 Fix another GCC 9 string truncation warning
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 02:51:15 +01:00
Joachim Nilsson 338c358a75 Defensive programming, check bounds of loop variable first
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 02:51:15 +01:00
Joachim Nilsson fe017642de Refactor do_query() to same calling convention used elsewhere
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 02:51:15 +01:00
Joachim Nilsson 8d271ac5b8 Fix GCC 9 string trunction warning
- Increase size of resulting path buffer, unlikely a real problem
- Check return value from snprintf() to detect errors and truncation
- Add logit() function wrapper to initctl, maps to _e()/_d()/_pe()

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 01:03:57 +01:00
Joachim Nilsson 744719219e initctl: Remove experimental cond set/clear commands
The commands are both unsafe (insecure) and send the wrong message,
that initctl can be used to script conditions.  Only plugins are
officially supported to manage conditions.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-07 00:35:13 +01:00
Joachim Nilsson 7bf2fcb6e3 Fix Coverity CID 265222, guard init_request::data member
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 23:56:59 +01:00
Joachim Nilsson ae9ed20d94 Revert "Attempt to fix Coverity CID 265222"
This reverts commit 238f63c0d3.
2020-01-06 23:54:32 +01:00
Joachim Nilsson a5c9d0a3f4 initctl: Fix file descriptor leak, found by Coverity
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 22:04:59 +01:00
Joachim Nilsson a8c071c5ef Fix memory leak, call strdup() as late as possible, found by Coverity
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 22:03:01 +01:00
Joachim Nilsson 238f63c0d3 Attempt to fix Coverity CID 265222
When reading data from (presumably) initctl over the UNIX domain socket
we might actually be receiving corrupt data from a malicious attacker.

This patch is an attempt at, the very least, guarding against C string
functions reading out of bounds due to non-NULL terminated strings.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 21:58:03 +01:00
Joachim Nilsson 41647a814c Handle improbable case were dev may be NULL, found by Coverity
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 21:46:44 +01:00
Joachim Nilsson 765ef63274 Handle mkdir() error in cgroups, don't fail if already exists
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 21:41:43 +01:00
Joachim Nilsson 6a5f4398a2 initctl: Check mkdir() for error and give helpful message on fail
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 21:37:07 +01:00
Joachim Nilsson 7fc515678f Check if svc ID is non-empty before strcmp(), found by Coverity
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 21:31:04 +01:00
Joachim Nilsson e410a24d13 Fix %s i _d() message
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 21:26:51 +01:00
Joachim Nilsson 397f67d03a Clear current line before starting built-in getty
When logging out from the shell, e.g. with Ctrl-D, artifacts from that
session may remain on the current line.  This patch makes sure to clear
up that line before issuing a newline and starting the built-in getty.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 19:37:00 +01:00
Joachim Nilsson b4b9111b33 Enable line wrap in TTY, in case was disabled previously
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 19:26:56 +01:00
Joachim Nilsson c19489d6c3 Add support for @console to external getty in tty_register()
- Refactor code to figure out device so it works for both the built-in
  and external getty code paths
- Fix memory leak when user edits an existing tty device
- Replace @console in argument list to external getty

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 19:05:20 +01:00
Joachim Nilsson 00a2840853 Allow Ctrl-U, Ctrl-D again in built-in getty
Many users found it very frustrating that it was impossible to use
standard commands like Ctrl-U and Ctrl-D at the login: prompt.  It
was never the intention to hamper users for no reason like that.

Also, compensate for cursor-up in "Please press Enter" wait-handler.
Curiously, this makes everything very neat looking also when having
'nowait' enabled for the tty.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 19:01:53 +01:00
Joachim Nilsson d1718d338e Set proper RAW mode for "Please press Enter to activate ..."
Also, while leading with a \n for the activation text and clearing the
line before getty is called, some getty implementations, e.g. BusyBox,
write an extra \n before printing /etc/issue.  For perfectionists that
want a single newline separating started services and the first line
of /etc/issue we now not only clear the line, we also move the cursor
one line up before handing over to getty.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 18:58:08 +01:00
Joachim Nilsson 58ade5d74e Allow built-in getty to show in ps as 'tty DEV'
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 18:52:40 +01:00
Joachim Nilsson c391e04983 Hide command line arguments from ps, for forked children like getty
The built-in gety in Finit forks but does not execv().  To prevent
confusion on the part of the user, this patch hides all command line
arguments to PID 1 so it won't show up in ps listings of children.

Finit currently reads its arguments from the kernel /proc/cmdline,
it has hard-coded paths to /etc/finit.conf etc.  A future version
of Finit may take command line params, in which case this patch
should be moved after any getopt() handling.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-06 18:49:14 +01:00
Joachim Nilsson 85fe613b30 Account for 3-4 byte wide unicode characters in heading
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-05 16:10:41 +01:00
Joachim Nilsson 880ad98dbe Workaround markdown parser
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-04 11:49:50 +01:00
Joachim Nilsson b1a88df9fc Pad heading in modern style using ═══════════════════
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-04 11:40:09 +01:00
Joachim Nilsson aaf7888411 Move badges to top row
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-03 14:27:45 +01:00
Joachim Nilsson 6edb01a72b Update ingress, time passes oh so quickly ...
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-03 14:27:41 +01:00
Joachim Nilsson 636f6678ed Introducing Finit progress 𝓜𝓸𝓭𝓮𝓻𝓷
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2020-01-02 14:59:32 +01:00
Joachim Nilsson 3b62f46599 TODO: Remember to collect siginfo_t on SIGCHLD
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2019-12-12 17:57:09 +01:00
Joachim Nilsson 49f0d94b95 Drop reference to non-existing site, refers to *good* example now
Also, drop the Emacs hint, not needed anymore.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2019-11-04 06:09:59 +01:00
Joachim Nilsson abccb26a83 Check for pkg-config in configure before looking for deps
Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
2019-07-04 22:26:08 +02:00
64 changed files with 1692 additions and 599 deletions
@@ -66,9 +66,6 @@ how `git commit -s` is used to automatically add a `Signed-off-by`:
Signed-off-by: Jane Doe <jane.doe@example.com>
Another good *counter* example [is this][rambling] ...
Code of Conduct
---------------
@@ -79,11 +76,4 @@ Bill & Ted; [be excellent to each other][conduct].
[github]: https://github.com/troglobit/finit/
[KNF]: https://en.wikipedia.org/wiki/Kernel_Normal_Form
[gitbook]: https://git-scm.com/book/ch5-2.html
[rambling]: http://stopwritingramblingcommitmessages.com/
[conduct]: https://github.com/troglobit/finit/blob/master/CODE-OF-CONDUCT.md
<!--
-- Local Variables:
-- mode: markdown
-- End:
-->
[conduct]: CODE-OF-CONDUCT.md
+3
View File
@@ -0,0 +1,3 @@
# These are supported funding model platforms
github: [troglobit]
+8 -6
View File
@@ -9,14 +9,16 @@ sudo: false
#sudo: true
# Test build with both GCC and Clang (LLVM)
# - clang
compiler:
- gcc
- clang
# The secure: declaration is the encrypted COVERITY_SCAN_TOKEN, created
# via the "travis encrypt" command using the project repo's public key
env:
global:
# The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
# via the "travis encrypt" command using the project repo's public key
- PKG_CONFIG_PATH=/tmp/lib/pkgconfig
- CFLAGS="-W -Wall -Wextra"
- secure: "eOiuHs02lG2Uv146K9dMqucGTWUJFEhpz1oAtwe+kPrRXsXWc20hYMO+DSpMgD05vSvNeQA6p7h7LdRFQ+/g/Obj27TsOE+RKkUvRAtdwzxnKVyii9C/nmML8cFw7rIA0VS8O9mAkVYeyDxNDupBp3e9DPCibhKPvqCvioTnyy4="
addons:
@@ -28,7 +30,7 @@ addons:
name: "troglobit/finit"
description: "finit | Fast & Extensible init for Linux"
notification_email: troglobit@gmail.com
build_command_prepend: "./autogen.sh && PKG_CONFIG_PATH=/tmp/lib/pkgconfig ./configure --prefix=/tmp"
build_command_prepend: "./autogen.sh && ./configure --prefix=/tmp"
build_command: "make"
branch_pattern: dev
@@ -43,10 +45,10 @@ install:
# Custom build script for the time being, no "make test" yet
script:
- ./autogen.sh
- PKG_CONFIG_PATH=/tmp/lib/pkgconfig ./configure --prefix=/tmp --disable-inetd --enable-static
- ./configure --prefix=/tmp --disable-inetd --enable-static
- make clean
- make V=1 -j5
- PKG_CONFIG_PATH=/tmp/lib/pkgconfig ./configure --prefix=/tmp --enable-inetd-echo-plugin --enable-inetd-time-plugin --enable-x11-common-plugin --enable-inetd-chargen-plugin --enable-fallback-shell --enable-watchdog
- ./configure --prefix=/tmp --enable-inetd-echo-plugin --enable-inetd-time-plugin --enable-x11-common-plugin --enable-inetd-chargen-plugin --enable-fallback-shell --enable-watchdog --enable-logit
- cat config.log
- make clean
- make V=1 -j5
+59 -8
View File
@@ -4,14 +4,25 @@ Change Log
All relevant changes are documented in this file.
[3.2][UNRELEASED] - 2018-10-xx
[3.2][UNRELEASED] - 2020-04-xx
------------------------------
Bug fix release.
Bug fix release, but also cgroups and a new progress!
https://twitter.com/b0rk/status/1214341831049252870?s=20
### Changes
* Add support for `--disable-docs` and `--disable-contrib` to speed up
* Introducing Finit progress 𝓜𝓸𝓭𝓮𝓻𝓷
* Support for `sysv` start/stop scripts as well as monitoring forking
services, stared using `sysv` or `service` stanza
* Support for custom `kill:DELAY`, default 3 sec.
* Support for custom `halt:SIGNAL`, default SIGTERM
* Support for tracking custom PID files, using `pid:!/path/to/foo.pid`,
useful with new `sysv` or `service` which fork to background
* Support starting run/task/services without absolute path, trust `$PATH`
* Add support for `--disable-doc` and `--disable-contrib` to speed up
builds and work around issue with massively parallel builds
* Add support for `@console` also for external getty
* Add `-b`, batch mode, for non-interactive use to `initctl`
* Prefer udev to handle `/dev/` if mdev is also available
* Redirect dbus daemon output to syslog
@@ -19,7 +30,7 @@ Bug fix release.
* Finit no longer automatically reloads its `*.conf` files after running
`/etc/rc.local` or run-parts. Use `initctl reload` instead.
* `initctl` without an argument or option now defaults to list services
* Converted built-in watchdog daemon to standalone mini watchdogd
* Convert built-in watchdog daemon to standalone mini watchdogd, issue #102
* Improved watchdog hand-over, now based on `svc_t` and not PID
* Extended bootstrap, runlevel S, timeout: 10 --> 120 sec. before services
not allowed in the runtime runlevel are unconditionally stopped
@@ -34,7 +45,32 @@ Bug fix release.
the kernel can invalidate deleted events before enqueing to userspace
* Rename `hwclock.so` plugin to `rtc.so` since it now is stand-alone
from the `hwclock` tool. Note: the kernel can also be set to load
and store RTC to/from system clock at boot/halt as well.
and store RTC to/from system clock at boot/halt as well, issue #110
* New plugin to support cold plugging devices, auto-loading of modules
at boot. Detects required modules by reading `/sys/devices/*`
* New plugin for `/etc/modules-load.d/` by Robert Andersson, Atlas Copco
* New `name:foo` support for services, by Robert Andersson, Atlas Copco
* New `manual:yes` support for services, by Robert Andersson, Atlas Copco
* New `log:console` support for services, by Robert Andersson, Atlas Copco
* Support for `:ID` as a string, by Jonas Johansson, Westermo
* Support for auto-reload, instead of having to do `initctl reload`,
when a service configuration has changed. Disabled by default, but
can be enabled with `./configure --enable-auto-reload`
* Support for logging security related events, e.g., runlevel change,
star/stop or failure to start services, by Jonas Holmberg, Westermo
* Mount devtpts with recommended `ptxmode=0666`
* Mount /run tmpfs with nosuid,nodev,noexec for added security
* Support for `console` as alias for `@console` in tty stanzas
* Drop `--enable-rw-roots` configure option, use `rw` for your `/`
partition in `/etc/fstab` instead to trigger remount at boot
* Drop default tty speed (38400) and use 0 (kernel default) instead
* Make `:ID` optional for real, use NULL/zero internally and only
force :ID (numbered) for inetd services, this allows ...
* Handle use-cases where multiple services share the same PID filem
and thus the same condition path, e.g. different instances for
different runlevels. Allow custom condition path with `name:foo`
syntax, creates conditions w/o a path, and ...
* Always append `:ID` qualifier to conditions if set for a service
### Fixes
@@ -53,18 +89,29 @@ Bug fix release.
that do not have a watchdog
* Fix #100: Early condition handling may not work if `/var/run` does
not yet exist (symlink to `/run`). Added compat layer for access
* Fix #103: Register multiple getty if `@console` resolves to >1 TTY
* Fix #103: Register multiple getty if `@console` resolves to >1 TTY,
* Fix #105: Only remove /etc/nologin when moving from runlevel 0, 1, 6
* Fix #106: Don't mark inetd connections for deletion at .conf reload.
Fixed by Jonas Johansson, Westermo
* Fix #107: Stop spawned inetd conncections when stopping inetd service.
Fixed by Jonas Johansson, Westermo
* Fix #109: Support for PID files in sub-directories to `/var/run`
* Handle rename of PID files, by Robert Andersson, Atlas Copco
* Fix #111: Only restart inetd services when necessary. E.g., if the
listening interface is changed. Only stop established connections
which are no longer allowed, i.e. do not touch already allowed
established connections. Fixed by Jonas Johansson, Westermo
* Fix #120: Redirect `stdin` to `/dev/null` for services by default
* Fix #122: Switch to `nanosleep()` to achieve "signal safe" sleep,
fixed by Jacques de Laval, Westermo
* Fix #124: Lingering processes in process group when session leader
exits. E.g., lingering `logit` processes when parent dies
* Fix: update inetd service args on config change. Found and fixed by
Petrus Hellgren, Westermo
* Fix service name matching, e.g. for condition handling, may match with
wrong service, by Jonas Holmberg, Westermo
* Run all run-parts scripts using `/bin/sh -c foo` just like the standard
run-parts tool. Found by Magnus Malm, Westermo
* Fix `initctl [start | restart]`, should behave the same for services
that have crashed. Found by Mattias Walström, Westermo
* Wait for bootstrap phase to complete before cleaning out any bootstrap
@@ -72,7 +119,11 @@ Bug fix release.
* Reassert condition when an unmodified run/task/service goes from
WAITING back to RUNNING again after a reconfiguration event.
Found and fixed by Jonas Johansson, Westermo
* Restore Ctrl-D and Ctrl-U support in built-in getty
* Remove service condition when service is deleted
* Fix C++ compilation issues, by Robert Andersson, Atlas Copco
* Build fixes for uClibc
* Provide service description for built-in watchdog daemon
[3.1][] - 2018-01-23
@@ -147,7 +198,7 @@ This version requires at least libuEv v2.1.0 and libite v2.0.1
possibility of running a second stage mount command before files in
`/run` and similar are created
* Skip `gdbserver` when unleashing the grim reaper at shutdown
* Distribute and install `docs/` and `contrib/` directories
* Distribute and install `doc/` and `contrib/` directories
### Fixes
@@ -210,7 +261,7 @@ distributions.
* Ensure plugins always have a default name, file name
* Reorganization, move all source files to a `src/` sub-directory
* Add support for `initctl <list|enable|disable> <SVC>`, much needed by
distributions. See [docs/distro.md](docs/distro.md) for details
distributions. See [doc/distro.md](doc/distro.md) for details
* Remove `UNUSED()` macro, mentioned here because it may have been used
by external plugin developers. Set `-Wno-unused-parameter` instead
* New table headings in `initctl`, using `top` style inverted text
+2 -2
View File
@@ -6,8 +6,8 @@ EXTRA_DIST = README.md LICENSE ChangeLog.md contrib/finit.conf
if CONTRIB
SUBDIRS += contrib
endif
if DOCS
SUBDIRS += docs
if DOC
SUBDIRS += doc
endif
# Compat hook
+52 -40
View File
@@ -1,39 +1,39 @@
[![License Badge][]][License] [![Travis Status]][Travis] [![Coverity Status]][Coverity Scan]
<img align="right" src="img/finit3.png" alt="Finit: Fast Init">
* [Introduction](#introduction)
* [Features](#features)
* [Bootstrap](docs/bootstrap.md#bootstrap)
* [Bootstrap](doc/bootstrap.md#bootstrap)
* [Runlevels](#runlevels)
* [Syntax](docs/config.md#syntax)
* [Inetd](docs/inetd.md#inetd)
* [Syntax](doc/config.md#syntax)
* [Inetd](doc/inetd.md#inetd)
* [Runparts & /etc/rc.local](#runparts--etcrclocal)
* [Hooks, Callbacks & Plugins](docs/plugins.md#hooks-callbacks--plugins)
* [Hooks, Callbacks & Plugins](doc/plugins.md#hooks-callbacks--plugins)
* [Rebooting & Halting](#rebooting--halting)
* [Commands & Status](#commands--status)
* [Tips & Tricks with the kernel cmdline](docs/cmdline.md)
* [Building](docs/build.md#building)
* [Running](docs/build.md#running)
* [Recovery](docs/build.md#recovery)
* [Debugging](docs/build.md#debugging)
* [Tips & Tricks with the kernel cmdline](doc/cmdline.md)
* [Building](doc/build.md#building)
* [Running](doc/build.md#running)
* [Recovery](doc/build.md#recovery)
* [Debugging](doc/build.md#debugging)
* [Requirements](#requirements)
* [Origin & References](#origin--references)
Introduction
------------
[![License Badge][]][License] [![Travis Status]][Travis] [![Coverity Status]][Coverity Scan]
Finit is a simple alternative to [SysV init][4] and [systemd][6]. It
was reverse engineered from the [EeePC fastinit][] ten years ago by
[Claudio Matsuoka][] — "gaps filled with frog DNA …"
was reverse engineered from the [EeePC fastinit][] over ten years ago
by [Claudio Matsuoka][] — "gaps filled with frog DNA …"
Focus is on small and embedded systems, although Finit is fully usable
on server and desktop systems as well. For working examples, see the
[contrib/](contrib/) section with tutorials for:
* [Alpine Linux](contrib/alpine/),
* [Debian GNU/Linux](contrib/debian/), and
* [Void Linux](contrib/void/)
* [Void Linux](contrib/void/),
* [Alpine Linux](contrib/alpine/), and
* [Debian GNU/Linux](contrib/debian/)
![Alpine screenshot](img/alpine-screenshot.png)
The screenshot shows [Alpine Linux](https://www.alpinelinux.org/).
@@ -95,21 +95,21 @@ inetd ssh/tcp@*,!eth0 nowait [2345] /sbin/dropbear -i -R -F -- SSH service
# Run start scripts from this directory
# runparts /etc/start.d
# Virtual consoles run BusyBox getty
tty [12345] /sbin/getty -L 115200 /dev/tty1 linux
tty [12345] /sbin/getty -L 115200 /dev/tty2 linux
tty [12345] /sbin/getty -L 115200 /dev/tty3 linux
# Virtual consoles run BusyBox getty, keep kernel default speed
tty [12345] /sbin/getty -L 0 /dev/tty1 linux
tty [12345] /sbin/getty -L 0 /dev/tty2 linux
tty [12345] /sbin/getty -L 0 /dev/tty3 linux
# Use built-in getty for serial port and USB serial
tty [12345] /dev/ttyAMA0 115200 noclear nowait
tty [12345] /dev/ttyUSB0 115200 noclear
tty [12345] /dev/ttyAMA0 noclear nowait
tty [12345] /dev/ttyUSB0 noclear
# Just give me a shell, I need to debug this embedded system!
tty [12345] @console noclear nologin
```
The `service` stanza, as well as `task`, `run`, `inetd` and others are
described in full in [docs/config.md](docs/config.md). Here's a quick
described in full in [doc/config.md](doc/config.md). Here's a quick
overview of some of the most common components needed to start a UNIX
daemon:
@@ -130,7 +130,7 @@ advanced uses as well:
service /usr/sbin/sshd -D
Dependencies are handled using [conditions](docs/conditions.md). One of
Dependencies are handled using [conditions](doc/conditions.md). One of
the most common conditions is to wait for basic networking to become
available:
@@ -171,7 +171,7 @@ Start, monitor and restart services should they fail.
**Inetd**
Finit comes with a built-in [inetd server](docs/inetd.md). No need to
Finit comes with a built-in [inetd server](doc/inetd.md). No need to
maintain a separate config file for services that you want to start on
demand.
@@ -186,7 +186,7 @@ Built-in optional inetd services:
- discard [RFC863][]
- time (rdate) [RFC868][]
For more information, see [docs/inetd.md](docs/inetd.md).
For more information, see [doc/inetd.md](doc/inetd.md).
**Getty**
@@ -197,9 +197,9 @@ waits for user input before handing over to `/bin/login`, which is
responsible for handling the actual authentication.
```conf
tty [12345] /dev/tty1 38400 nowait linux
tty [12345] /dev/ttyAMA0 115200 noclear vt100
tty [12345] /sbin/getty -L 115200 /dev/ttyAMA0 vt100
tty [12345] /dev/tty1 nowait linux
tty [12345] /dev/ttyAMA0 noclear vt100
tty [12345] /sbin/getty -L /dev/ttyAMA0 vt100
```
Users of embedded systems may want to enable automatic serial console
@@ -208,12 +208,12 @@ system uses `ttyS0`, `ttyAMA0`, `ttyMXC0`, or anything else. Finit
figures it out by querying sysfs: `/sys/class/tty/console/active`.
```conf
tty [12345] @console 115200 linux noclear
tty [12345] @console linux noclear
```
Notice the optional `noclear`, `nowait`, and `nologin` flags. The
latter is for skipping the login process entirely. For more information,
see [docs/config.md](docs/config.md#syntax).
see [doc/config.md](doc/config.md#syntax).
**Runlevels**
@@ -258,7 +258,7 @@ Extensions and functionality not purely related to what an `/sbin/init`
needs to start a system are available as a set of plugins that either
hook into the boot process or respond to various I/O.
For more information, see [docs/plugins.md](docs/plugins.md).
For more information, see [doc/plugins.md](doc/plugins.md).
**Progress**
@@ -277,7 +277,21 @@ append="init=/sbin/finit splash"
For a really nice boot, add `quiet` as well. This silences the output
from the kernel, leaving only warnings and errors. For other kernel
command line parameters, see [docs/build.md](docs/build.md#recovery).
command line parameters, see [doc/build.md](doc/build.md#recovery).
**Automatic Reload**
By default, Finit monitors `/etc/finit.d/` and `/etc/finit.d/enabled/`
registering any changes to `.conf` files. To activate a change the user
must call `initctl reload`, which reloads all modified files, stops any
removed services, starts new ones, and restarts any modified ones, with
SIGHUP if the process supports it.
For some use-cases the extra step of calling `initctl reload` creates an
unnecessary overhead, which can be removed at build-time using:
configure --enable-auto-reload
Runparts & /etc/rc.local
@@ -299,8 +313,8 @@ Right after the runlevel change when all services have started properly,
No configuration stanza in `/etc/finit.conf` is required for `rc.local`.
If it exists and is an executable shell script Finit calls it at the very
end of the boot, before calling the `HOOK_SYSTEM_UP`. See more on hooks
in [docs/plugins.md](docs/plugins.md#hooks), and about the system bootstrap
in [docs/bootstrap.md](docs/bootstrap.md).
in [doc/plugins.md](doc/plugins.md#hooks), and about the system bootstrap
in [doc/bootstrap.md](doc/bootstrap.md).
Runlevels
@@ -378,7 +392,7 @@ section.
For compatibility reasons Finit listens to the same set of signals as
BusyBox init. This is not 100% compatible with SysV init, but clearly
the more common combination for Finit. For more details, see
[docs/signals.md](docs/signals.md).
[doc/signals.md](doc/signals.md).
Finit also listens to the classic SysV init FIFO, used by `telinit`.
Support for this is implemented by the `initctl.so` plugin. Hence,
@@ -429,8 +443,6 @@ Commands:
touch <CONF> Mark .conf in /etc/finit.d/ for reload
reload Reload *.conf in /etc/finit.d/ (activates changes)
cond set <COND> Set (assert) condition => +COND
cond clear <COND> Clear (deassert) condition => -COND
cond show Show condition status
cond dump Dump all conditions and their status
@@ -451,7 +463,7 @@ Commands:
For services *not* supporting `SIGHUP` the `<!>` notation in the .conf
file must be used to tell Finit to stop and start it on `reload` and
`runlevel` changes. If `<>` holds more [conditions](docs/conditions.md),
`runlevel` changes. If `<>` holds more [conditions](doc/conditions.md),
these will also affect how a service is maintained.
**Note:** even though it is possible to start services not belonging in
@@ -533,12 +545,12 @@ and proposed extensions.
[openrc]: http://www.gentoo.org/proj/en/base/openrc/
[run-parts(8)]: http://manpages.debian.org/cgi-bin/man.cgi?query=run-parts
[original finit]: http://helllabs.org/finit/
[EeePC fastinit]: http://wiki.eeeuser.com/boot_process:the_boot_process
[EeePC fastinit]: https://web.archive.org/web/20071208212450/http://wiki.eeeuser.com/boot_process:the_boot_process
[Claudio Matsuoka]: https://github.com/cmatsuoka
[Joachim Nilsson]: http://troglobit.com
[GitHub]: https://github.com/troglobit/finit
[License]: https://en.wikipedia.org/wiki/MIT_License
[License Badge]: https://img.shields.io/badge/License-MIT-yellow.svg
[License Badge]: https://img.shields.io/badge/License-MIT-teal.svg
[Travis]: https://travis-ci.org/troglobit/finit
[Travis Status]: https://travis-ci.org/troglobit/finit.png?branch=master
[Coverity Scan]: https://scan.coverity.com/projects/3545
+41 -18
View File
@@ -1,4 +1,4 @@
AC_INIT(Finit, 3.2-rc1, https://github.com/troglobit/finit/issues, finit, http://troglobit.com/finit.html)
AC_INIT(Finit, 3.2-rc3, https://github.com/troglobit/finit/issues, finit, https://troglobit.com/finit.html)
AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz subdir-objects])
AM_SILENT_RULES([yes])
@@ -9,7 +9,7 @@ AC_CONFIG_FILES([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/debian/grub.d/Makefile
contrib/void/Makefile contrib/void/finit.d/Makefile contrib/void/finit.d/available/Makefile
docs/Makefile
doc/Makefile
plugins/Makefile
src/Makefile])
@@ -40,6 +40,9 @@ 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 >= 2.0.1])
@@ -54,14 +57,18 @@ AC_ARG_ENABLE(fallback_shell,
AS_HELP_STRING([--enable-fallback-shell], [Start a shell if no TTYs can start]),,[
enable_fallback_shell=no])
AC_ARG_ENABLE(rw-rootfs,
AS_HELP_STRING([--enable-rw-rootfs], [Remount / R/W at boot, usually not for embedded]),,[
enable_rw_rootfs=no])
AC_ARG_ENABLE(auto_reload,
AS_HELP_STRING([--enable-auto-reload], [Automatic reload on any .conf change]),,[
enable_auto_reload=no])
AC_ARG_ENABLE(progress,
AS_HELP_STRING([--enable-progress], [Pre Finit v3 bootup progress and heading]),,[
AS_HELP_STRING([--enable-progress], [Modern progress display at bootup]),,[
enable_progress=no])
AC_ARG_ENABLE(progress-classic,
AS_HELP_STRING([--enable-progress-classic], [Pre Finit v3 bootup progress and heading]),,[
enable_progress_classic=no])
AC_ARG_ENABLE(watchdog,
AS_HELP_STRING([--enable-watchdog], [Enable built-in watchdog, uses /dev/watchdog]),,[
enable_watchdog=no])
@@ -74,13 +81,17 @@ AC_ARG_ENABLE(inetd,
AS_HELP_STRING([--disable-inetd], [Disable built-in inetd super server, default enabled]),,[
enable_inetd=yes])
AC_ARG_ENABLE(logit,
AS_HELP_STRING([--disable-logit], [Disable logit, used for log redirection, default: enable]),,[
enable_logit=yes])
AC_ARG_ENABLE(logrotate,
AS_HELP_STRING([--disable-logrotate], [Disable built-in rotation of /var/log/wtmp, default enabled]),,[
enable_logrotate=yes])
AC_ARG_ENABLE(docs,
AS_HELP_STRING([--disable-docs], [Disable build and install of docs section]),,[
enable_docs=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]),,[
@@ -137,7 +148,6 @@ 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=/var/lib/misc/random-seed])
### Enable features ###########################################################################
# Create config.h from selected features and fallback defautls
@@ -147,13 +157,21 @@ AS_IF([test "x$enable_emergency_shell" = "xyes"], [
AS_IF([test "x$enable_fallback_shell" = "xyes"], [
AC_DEFINE(FALLBACK_SHELL, 1, [Start /bin/sh on console if no TTYs.])])
AS_IF([test "x$enable_rw_rootfs" = "xyes"], [
AC_DEFINE(REMOUNT_ROOTFS, 1, [Remount / as rw at boot])])
AS_IF([test "x$enable_auto_reload" = "xyes"], [
AC_DEFINE(AUTO_RELOAD, 1, [Finit automatically does `initctl reload` on any .conf change])])
AS_IF([test "x$enable_progress" = "xyes"], [
AC_DEFINE(SILENT_MODE, 0, [Pre Finit v3 bootup messages and heading])
AC_DEFINE(PROGRESS_STYLE, 2, [Modern bootup messages, systemd inspired])])
AS_IF([test "x$enable_progress_classic" = "xyes"], [
enable_progress=no
AC_DEFINE(PROGRESS_STYLE, 1, [Pre Finit v3 bootup messages and heading])])
AS_IF([test "x$enable_progress_classic" = "xyes" -o "x$enable_progress" = "xyes"], [
AC_DEFINE(SILENT_MODE, 0, [Display bootup progress, see above for style])
], [
AC_DEFINE(SILENT_MODE, 1, [Completely silent until login prompt])])
AC_DEFINE(PROGRESS_STYLE, 0, [Default progress style])
AC_DEFINE(SILENT_MODE, 1, [Completely silent until login prompt (default)])])
AS_IF([test "x$enable_watchdog" = "xyes"], [
AC_DEFINE(BUILTIN_WATCHDOG, 1, [Enable built-in watchdog, kicks on /dev/watchdog])])
@@ -166,6 +184,9 @@ AS_IF([test "x$enable_inetd" != "xno"], [
enable_inetd="yes"
AC_DEFINE(INETD_ENABLED, 1, [Enable built-in inetd])])
AS_IF([test "x$enable_logit" != "xno"], [
AC_DEFINE(LOGIT_ENABLED, 1, [Enable logit tool, used for log redirection by Finit])])
AS_IF([test "x$enable_logrotate" != "xno"], [
AC_DEFINE(LOGROTATE_ENABLED, 1, [Enable built-in rotation of /var/log/wtmp et al.])])
@@ -224,7 +245,8 @@ AS_IF([test "x$with_random_seed" != "xno"], [
AM_CONDITIONAL(STATIC, [test "x$enable_static" = "xyes"])
AM_CONDITIONAL(INETD, [test "x$enable_inetd" = "xyes"])
AM_CONDITIONAL(WATCHDOGD, [test "x$enable_watchdog" = "xyes"])
AM_CONDITIONAL(DOCS, [test "x$enable_docs" = "xyes"])
AM_CONDITIONAL(LOGIT, [test "x$enable_logit" = "xyes"])
AM_CONDITIONAL(DOC, [test "x$enable_doc" = "xyes"])
AM_CONDITIONAL(CONTRIB, [test "x$enable_contrib" = "xyes"])
# Override default libdir, used for plugins and rescue.conf
@@ -264,15 +286,16 @@ Behavior:
Plugins...............: $plugins
Optional features:
Install docs/.........: $enable_docs
Install doc/..........: $enable_doc
Install contrib/......: $enable_contrib
Built-in inetd........: $enable_inetd
Built-in watchdogd....: $enable_watchdog
Built-in logrotate....: $enable_logrotate
Scripting tool logit..: $enable_logit
Emergency shell.......: $enable_emergency_shell
Fallback shell........: $enable_fallback_shell
Remount / RW at boot..: $enable_rw_rootfs
Traditional progress..: $enable_progress
Modern progress.......: $enable_progress
Classic progress......: $enable_progress_classic
Default console dev...: $console
Default hostname......: $hostname
Default runlevel......: $runlevel
+1 -1
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@@ -14,7 +14,7 @@ fi
# The plugins are optional, but you may need D-Bus and X11 if you want
# to run X-Window, the other configure flags are however required.
PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig:/usr/local/lib/pkgconfig ./configure \
--enable-rw-rootfs --enable-progress \
--enable-progress \
--enable-dbus-plugin --enable-x11-common-plugin \
--enable-alsa-utils-plugin --enable-inetd-echo-plugin \
--enable-inetd-chargen-plugin --enable-inetd-daytime-plugin \
+3 -3
View File
@@ -1,4 +1,4 @@
# Consoles to start getty on when system is up
tty /dev/tty1 noclear nowait
tty /dev/tty2 noclear nowait
tty /dev/tty3 noclear nowait
tty [12345] /dev/tty1 noclear nowait
tty [2345] /dev/tty2 noclear nowait
tty [2345] /dev/tty3 noclear nowait
+1 -1
View File
@@ -22,7 +22,7 @@ echo
# The plugins are optional, but you may need D-Bus and X11 if you want
# to run X-Window, the other configure flags are however required.
./configure \
--enable-rw-rootfs --enable-progress \
--enable-progress \
--enable-dbus-plugin --enable-x11-common-plugin \
--enable-alsa-utils-plugin --enable-inetd-echo-plugin \
--enable-inetd-chargen-plugin --enable-inetd-daytime-plugin \
+3 -3
View File
@@ -1,4 +1,4 @@
# Consoles to start getty on when system is up
tty [12345] /dev/tty1 115200 vt100 noclear nowait
tty [2345] /dev/tty2 38400 linux noclear nowait
tty [2345] /dev/tty3 38400 linux noclear nowait
tty [12345] /dev/tty1 linux noclear nowait
tty [2345] /dev/tty2 linux noclear nowait
tty [2345] /dev/tty3 linux noclear nowait
+1 -1
View File
@@ -14,7 +14,7 @@ fi
# The plugins are optional, but you may need D-Bus and X11 if you want
# to run X-Window, the other configure flags are however required.
PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig:/usr/local/lib/pkgconfig ./configure \
--enable-rw-rootfs --enable-progress \
--enable-progress \
--enable-dbus-plugin --enable-x11-common-plugin \
--enable-alsa-utils-plugin --enable-inetd-echo-plugin \
--enable-inetd-chargen-plugin --enable-inetd-daytime-plugin \
+3 -3
View File
@@ -1,4 +1,4 @@
# Consoles to start Finit built-in getty on when system is up
tty /dev/tty1 noclear nowait
tty /dev/tty2 noclear nowait
tty /dev/tty3 noclear nowait
tty [12345] /dev/tty1 noclear nowait
tty [2345] /dev/tty2 noclear nowait
tty [2345] /dev/tty3 noclear nowait
View File
+1 -1
View File
@@ -1,4 +1,4 @@
docsdir := @docdir@/docs
docsdir := @docdir@/doc
docs_DATA = config.md conditions.md distro.md inetd.md plugins.md \
service.md signals.md svc-machine.png cmdline.md
EXTRA_DIST = $(docs_DATA)
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+3
View File
@@ -21,6 +21,9 @@ can also be used.
Near Future
-----------
* When a process dies, and Finit does not restart it, we should collect
a `siginfo_t` from the SIGCHLD signal and supply to the user in case
`initctl status <process>` is called to debug the issue.
* Merge UDP redirect service uredir as an UDP inetd variant
* Add `finit.conf` support for UPS notification (SIGPWR) to start a task
using, e.g. <sys/power/{ok,fail,low}> conditions. More info in sig.c
+1 -1
View File
@@ -12,7 +12,7 @@ Bootstrap
9. Parse `/etc/finit.conf` and all `/etc/finit.d/*.conf` files
10. Start built-in watchdog, if enabled
11. Set hostname
12. Pivot root, or remount `/` read-write, depending on system type
12. Remount `/` read-write if `/` is listed in `/etc/fstab` without `ro`
13. Call 1st level hooks, `HOOK_ROOTFS_UP`
14. Mount all file systems listed in `/etc/fstab` and swap, if available
15. Enable SysV init signals
+1 -6
View File
@@ -40,11 +40,6 @@ Below are a few of the main switches to configure:
* `--disable-inetd`: Disable the built-in inetd server.
* `--enable-rw-rootfs`: Most desktop and server systems boot with the
root file stystem read-only. With this setting Finit will remount it
as read-write early at boot so the `bootmisc.so` plugin can run.
Usually not needed on embedded systems.
* `--enable-static`: Build Finit statically. The plugins will be
built-ins (.o files) and all external libraries, except the C library
will be linked statically.
@@ -73,7 +68,7 @@ First, unpack the archive:
Then configure, build and install:
```shell
$ ./configure --enable-rw-rootfs --enable-inetd-echo-plugin \
$ ./configure --enable-inetd-echo-plugin \
--enable-inetd-chargen-plugin --enable-inetd-daytime-plugin \
--enable-inetd-discard-plugin --enable-inetd-time-plugin \
--with-heading="Alpine Linux 3.4" --with-hostname=alpine
View File
+28 -17
View File
@@ -47,17 +47,7 @@ service's PID file being created.
Triggering
----------
Conditions are triggered by built-in plugins, but can for debugging
purposes also be controlled using the `cond set` and `cond clear`
sub-commands to the `initctl` control tool:
* `initctl cond set your/cond/here`
To set a condition
* `initctl cond clear your/cond/here`
To clear a condition
Conditions can only be triggered by built-in plugins.
Conditions retain their current state until the next reconfiguration or
runlevel change. At that point all set conditions transition into the
@@ -102,6 +92,25 @@ Built-in conditions:
difference is that `running` tells if the NIC has link.
Composition
-----------
The `svc/` conditions can be quite tricky to understand. They are
generated by the Finit `pidfile.so` plugin and are composed from the
daemon's path and the pidfile name (and path).
| **service** | **pid:** | **pidfile path** | **svc condition** |
|--------------------------------------|-----------------|------------------|-------------------|
| /sbin/foo | | /run/foo.pid | svc/sbin/foo |
| /sbin/bar -p /run/baz.pid | pid:baz | /run/bas.pid | svc/sbin/baz |
| lxc-start -n foo -p /run/lxc/foo.pid | pid:lxc/foo.pid | /run/lxc/foo.pid | svc/lxc/foo |
| /usr/bin/dbus-daemon | pid:dbus/pid | /run/dbus/pid | svc/usr/bin/dbus |
Omitting the `pid:` to run/task/service/sysv stanza means Finit will
guess the pidfile path based on `/run/` and the basename(1) of the
program.
Debugging
---------
@@ -133,12 +142,13 @@ To fake interface `vlan1` suddenly appearing, and test what happens to
```shell
~ # initctl debug
~ # initctl cond set net/vlan1/exist
~ # mkdir -p /var/run/finit/cond/net/vlan1
~ # cp /var/run/finit/cond /var/run/finit/cond/net/vlan1/exist
```
Then watch the console for the debug messages and then check the output
from `initctl cond show` again. (The client will likely have failed to
start, but at least the condition is now satisfied.)
from `initctl cond show` again. The client will likely have failed to
start, but at least the condition is now satisfied.
There is also the `initctl cond dump` command, which dumps all known
conditions and their current status.
@@ -147,9 +157,10 @@ conditions and their current status.
Internals
---------
Conditions are implemented as simple files in the file system, in the
`/var/run/finit/cond/` sub-directory. Use the `initctl cond set/clear`
commands to add/remove files in this hierarchy.
As shown previously, conditions are implemented as simple files in the
file system, in the `/var/run/finit/cond/` sub-directory. The files
are created, updated, and removed by condition plugins. To debug them,
see the previous section.
A condition is always in one of three states:
+61 -16
View File
@@ -93,7 +93,16 @@ Syntax
case the contents of that file is used.
* `module <MODULE> [ARGS]`
Load a kernel module, with optional arguments
Load a kernel module, with optional arguments. Similar to `insmod`
command line tool.
Note, there is both a `modules-load.so` and a `modprobe.so` plugin
that can handle module loading better. The former supports loading
from `/etc/modules-load.d/`, and the latter uses kernel modinfo to
automatically load (or coldplug) every required module. For hotplug
we recommend the BusyBox mdev tool, add to `/etc/mdev.conf`:
$MODALIAS=.* root:root 0660 @modprobe -b "$MODALIAS"
* `network <PATH>`
Script or program to bring up networking, with optional arguments
@@ -143,11 +152,36 @@ Syntax
task [s] echo "foo" | cat >/tmp/bar
```
* `sysv [LVLS] <COND> /path/to/init-script -- Optional description`__
Similar to `task` is the `sysv` stanza, which can be used to call SysV
style scripts. The primary intention for this command is to be able to
re-use much of existing setup and init scripts in Linux distributions.
When entering an allowed runlevel, Finit calls `init-script start`,
when entering a disallowed runlevel, Finit calls `init-script stop`,
and if the Finit .conf, where `sysv` stanza is declared, is modified,
Finit calls `init-script restart` on `initctl reload`. Similar to
how `service` stanzas work.
Forking services started with `sysv` scripts can be monitored by Finit
by declaring the PID file to look for: `pid:!/path/to/pidfile.pid`.
* `service [LVLS] <COND> /path/to/daemon ARGS -- Optional description`
Service, or daemon, to be monitored and automatically restarted if it
exits prematurely. Please note that you often need to provide a
`--foreground` or `--no-background` argument to most daemons to
prevent them from forking off a sub-process in the background.
exits prematurely.
For daemons that support it, we recommend appending `--foreground`, or
`--no-background`, argument to prevent them from forking off a
sub-process in the background. This is the most reliable way to
monitor a service.
However, not all daemons support running in the foreground, or they
may start logging to the foreground as well, these are called forking
services and are supported using the same syntax as forking `sysv`
services, using the `pid:!/path/to/pidfile.pid` syntax.
In the case of `ospfd` (below), we omit the `-d` flag to prevent it
from forking (daemonizing):
```shell
service [2345] <svc/sbin/zebra> /sbin/ospfd -- OSPF daemon
@@ -169,21 +203,21 @@ Syntax
pid[:[/path/to/]filename[.pid]]
For example, by adding `pid:/run/foo.pid` to the service `bar` that
PID file will, not only be created and removed automatically, but also
be used by the Finit condition subsystem. So another service/run/task
can depend on `<svc/foo>`.
For example, by adding `pid:/run/foo.pid` to the service `/sbin/bar`
that PID file will, not only be created and removed automatically, but
also be used by the Finit condition subsystem. So a service/run/task
can depend on `<svc/sbin/foo>`, notice the composition of conditions.
If a service `bar` *does* maintain a PID file, but using `foo.pid`, we
can inform Finit of this by simplly prepending an `!` to the argument.
However, if a service `bar` *does* create a PID file, using `foo.pid`,
we can inform Finit of this by prepending an `!`:
pid:!/run/foo.pid
Here Finit will *not* create/remove/touch the PID file, only use it
for the condition handling instead of the default PID file name.
For a detailed description of conditions, and how to debug them, see
the [Finit Conditions](conditions.md) document.
> For a detailed description of conditions, and how to debug them, see
> the [Finit Conditions](conditions.md) document.
If a service should not be automatically started, it can be configured
as manual with the optional `manual` argument. The service can then be
@@ -197,6 +231,15 @@ Syntax
name:<service-name>
When stopping a service (run/task/sysv/service), either manually or
when moving to another runlevel, Finit starts by sending `SIGTERM`, to
allow the process to shut down gracefully. If the process has not
been collected within 3 seconds, Finit sends `SIGKILL`. To halt the
process using a different signal, use the option `halt:SIGNAL`, e.g.,
`halt:SIGPWR`. To change the delay between your halt signal and KILL,
use the option `kill:SEC`, e.g., `kill:10` to wait 10 seconds before
sending `SIGKILL`.
* `inetd service/proto[@iflist] <wait|nowait> [LVLS] /path/to/daemon args`
Launch a daemon when a client initiates a connection on an Internet
port. Available services are listed in the UNIX `/etc/services` file.
@@ -258,8 +301,9 @@ Syntax
`tty [LVLS] <CMD> <ARGS> [noclear] [nowait]`
The first variant of this option uses the built-in getty on the given
TTY device DEV, in the given runlevels. The DEV may be the special
keyword `@console`, which is very useful on embedded systems. Default
baud rate is `38400`.
keyword `@console`, or `console`, useful on embedded systems.
The default baud rate is 0, i.e., keep kernel default.
**Example:**
```conf
@@ -297,11 +341,12 @@ Syntax
Embedded systems may want to enable automatic `DEV` by supplying the
special `@console` device. This works regardless weather the system
uses `ttyS0`, `ttyAMA0`, `ttyMXC0`, or anything else. Finit figures
it out by querying sysfs: `/sys/class/tty/console/active`.
it out by querying sysfs: `/sys/class/tty/console/active`. The speed
can be omitted to keep the kernel default.
**Example:**
```conf
tty [12345] @console 115200 noclear vt220
tty [12345] @console noclear vt220
```
On really bare bones systems Finit offers a fallback shell, which
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@@ -7,7 +7,7 @@ AM_CPPFLAGS += $(lite_CFLAGS)
if STATIC
noinst_LTLIBRARIES = libplug.la
libplug_la_SOURCES = bootmisc.c rtc.c initctl.c pidfile.c procps.c tty.c urandom.c
libplug_la_SOURCES = bootmisc.c modprobe.c rtc.c initctl.c pidfile.c procps.c tty.c urandom.c
if BUILD_ALSA_UTILS_PLUGIN
libplug_la_SOURCES += alsa-utils.c
@@ -52,7 +52,7 @@ libplug_la_SOURCES += resolvconf.c
endif
else
pkglib_LTLIBRARIES = bootmisc.la rtc.la initctl.la pidfile.la procps.la tty.la urandom.la
pkglib_LTLIBRARIES = bootmisc.la modprobe.la rtc.la initctl.la pidfile.la procps.la tty.la urandom.la
if BUILD_ALSA_UTILS_PLUGIN
pkglib_LTLIBRARIES += alsa-utils.la
+1 -1
View File
@@ -58,7 +58,7 @@ static void setup(void *arg)
erase("/var/run/dbus/pid");
/* Register service with Finit */
snprintf(line, sizeof(line), "[S12345] log:prio:daemon.info,tag:dbus %s %s -- %s", cmd, ARGS, DESC);
snprintf(line, sizeof(line), "[S12345] pid:!/run/dbus/pid log:prio:daemon.info,tag:dbus %s %s -- %s", cmd, ARGS, DESC);
if (service_register(SVC_TYPE_SERVICE, line, global_rlimit, NULL))
_pe("Failed registering %s", DAEMON);
free(cmd);
+176
View File
@@ -0,0 +1,176 @@
/* Coldplug modules using modalias magic
*
* Copyright (c) 2020 Joachim Nilsson <troglobit@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/*
* Cold plug magic taken from Buildroot
* https://github.com/buildroot/buildroot/commit/b4fc5a180c81689a982d5c595844331684c14f51
*
* The plugin basically does this, only in C:
*
* system("find /sys/devices -name modalias -print0"
* " | xargs -0 sort -u -z"
* " | xargs -0 modprobe -abq");
*
* Note: BusyBox must *not* be built with CONFIG_MODPROBE_SMALL
*/
#include <fnmatch.h>
#include <ftw.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/time.h> /* gettimeofday() */
#include <sys/types.h>
#include <lite/lite.h>
#include "config.h"
#include "finit.h"
#include "helpers.h"
#include "plugin.h"
struct module {
TAILQ_ENTRY(module) link;
char *alias;
};
static TAILQ_HEAD(, module) modules = TAILQ_HEAD_INITIALIZER(modules);
static int modprobe(char *alias)
{
char *args[] = {
"modprobe",
"-abq",
alias,
NULL,
};
pid_t pid;
pid = fork();
switch (pid) {
case -1:
_pe("Failed forking modprobe child");
return 1;
case 0:
execvp(args[0], args);
break;
default:
if (!complete(args[0], pid))
_d("Successful modprobe of %s", alias);
break;
}
return 0;
}
static void alias_add(char *alias)
{
struct module *m;
m = malloc(sizeof(*m));
if (!m)
return;
m->alias = strdup(alias);
if (!m->alias) {
free(m);
return;
}
TAILQ_INSERT_TAIL(&modules, m, link);
}
static void alias_remove(struct module *m)
{
TAILQ_REMOVE(&modules, m, link);
free(m->alias);
free(m);
}
static int alias_exist(char *alias)
{
struct module *m;
TAILQ_FOREACH(m, &modules, link) {
if (!strcmp(m->alias, alias))
return 1;
}
return 0;
}
static int scan_alias(const char *path, const struct stat *st, int flag, struct FTW *unused)
{
FILE *fp;
char buf[256];
if (fnmatch("*/modalias", path, 0))
return 0;
fp = fopen(path, "r");
if (!fp)
return 0;
if (fgets(buf, sizeof(buf), fp)) {
chomp(buf);
if (!alias_exist(buf))
alias_add(buf);
}
fclose(fp);
return 0;
}
static void coldplug(void *arg)
{
struct module *m, *tmp;
int rc = 0;
print_desc("Cold plugging system", NULL);
nftw("/sys/devices", scan_alias, 200, FTW_DEPTH);
TAILQ_FOREACH_SAFE(m, &modules, link, tmp) {
rc += modprobe(m->alias);
alias_remove(m);
}
print_result(rc);
}
static plugin_t plugin = {
.name = __FILE__,
.hook[HOOK_BASEFS_UP] = { .cb = coldplug },
.depends = { "bootmisc", }
};
PLUGIN_INIT(plugin_init)
{
plugin_register(&plugin);
}
PLUGIN_EXIT(plugin_exit)
{
plugin_unregister(&plugin);
}
/**
* Local Variables:
* indent-tabs-mode: t
* c-file-style: "linux"
* End:
*/
+222 -41
View File
@@ -1,6 +1,7 @@
/* Simple pidfile event monitor for the Finit condition engine
*
* Copyright (c) 2015-2016 Tobias Waldekranz <tobias@waldekranz.com>
* Copyright (c) 2016-2020 Joachim Nilsson <troglobit@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@@ -21,55 +22,237 @@
* THE SOFTWARE.
*/
#include <glob.h>
#include <limits.h>
#include <paths.h>
#include <lite/queue.h>
#include <sys/inotify.h>
#include "finit.h"
#include "cond.h"
#include "helpers.h"
#include "pid.h"
#include "plugin.h"
#include "service.h"
struct wd_entry {
TAILQ_ENTRY(wd_entry) link;
char *path;
int fd;
};
struct context {
int fd;
int wd;
TAILQ_HEAD(, wd_entry) wd_list;
};
static struct context pidfile_ctx;
static int watcher_add(struct context *ctx, char *path)
{
struct wd_entry *wd;
uint32_t mask = IN_ONLYDIR | IN_CREATE | IN_ATTRIB | IN_DELETE | IN_MODIFY | IN_MOVED_TO;
char *ptr;
int fd;
_d("pidfile: Adding new watcher for path %s", path);
ptr = strstr(path, "run/");
if (ptr) {
char *slash;
ptr += 4;
slash = strchr(ptr, '/');
if (slash) {
ptr = slash++;
slash = strchr(ptr, '/');
if (slash) {
_d("pidfile: Path too deep, skipping.");
return -1;
}
}
}
fd = inotify_add_watch(ctx->fd, path, mask);
if (fd < 0) {
_pe("inotify_add_watch()");
return -1;
}
wd = malloc(sizeof(struct wd_entry));
if (!wd) {
_pe("Failed allocating new `struct wd_entry`");
inotify_rm_watch(ctx->fd, fd);
return -1;
}
wd->path = path;
wd->fd = fd;
TAILQ_INSERT_HEAD(&ctx->wd_list, wd, link);
return 0;
}
static int watcher_del(struct context *ctx, struct wd_entry *wde)
{
_d("pidfile: Removing watcher for removed path %s", wde->path);
TAILQ_REMOVE(&ctx->wd_list, wde, link);
inotify_rm_watch(ctx->fd, wde->fd);
free(wde->path);
free(wde);
return 0;
}
static void update_conds(char *dir, char *name, uint32_t mask)
{
char cond[MAX_COND_LEN];
char fn[PATH_MAX];
svc_t *svc;
_d("Got dir: %s, name: %s, mask: %08x", dir, name, mask);
snprintf(fn, sizeof(fn), "%s/%s", dir, name);
svc = svc_find_by_pidfile(fn);
if (!svc) {
_d("pidfile: No matching svc for %s", fn);
return;
}
_d("pidfile: Found svc %s for %s with pid %d", svc->name, fn, svc->pid);
mkcond(svc, cond, sizeof(cond));
if (mask & (IN_CREATE | IN_ATTRIB | IN_MODIFY | IN_MOVED_TO)) {
svc_started(svc);
if (svc_is_forking(svc)) {
pid_t pid;
pid = pid_file_read(pid_file(svc));
_d("Forking service %s changed PID from %d to %d",
svc->cmd, svc->pid, pid);
svc->pid = pid;
}
cond_set(cond);
} else if (mask & IN_DELETE)
cond_clear(cond);
}
/* synthesize events in case of new run dirs */
static void scan_for_pidfiles(struct context *ctx, char *dir, int len)
{
glob_t gl;
size_t i;
char path[len + 6];
int rc;
snprintf(path, sizeof(path), "%s/*.pid", dir);
rc = glob(path, GLOB_NOSORT, NULL, &gl);
if (rc && rc != GLOB_NOMATCH)
return;
snprintf(path, sizeof(path), "%s/pid", dir);
rc = glob(path, GLOB_NOSORT | GLOB_APPEND, NULL, &gl);
if (rc && rc != GLOB_NOMATCH)
return;
for (i = 0; i < gl.gl_pathc; i++) {
_d("scan found %s", gl.gl_pathv[i]);
update_conds(dir, gl.gl_pathv[i], IN_CREATE);
}
globfree(&gl);
}
static void handle_dir(struct context *ctx, struct wd_entry *wde, char *name, int mask)
{
char *path;
int plen;
int exist = 0;
plen = snprintf(NULL, 0, "%s/%s", wde->path, name) + 1;
path = malloc(plen);
if (!path) {
_pe("Failed allocating path buffer for watcher");
return;
}
snprintf(path, plen, "%s/%s", wde->path, name);
_d("pidfile: path is %s", path);
TAILQ_FOREACH(wde, &ctx->wd_list, link) {
if (!strcmp(wde->path, path)) {
exist = 1;
break;
}
}
if (mask & IN_CREATE) {
if (!exist) {
int rc = watcher_add(ctx, path);
scan_for_pidfiles(ctx, path, plen);
if (!rc)
return;
}
} else if (mask & IN_DELETE) {
if (exist)
watcher_del(&pidfile_ctx, wde);
}
free(path);
}
static void pidfile_callback(void *arg, int fd, int events)
{
static char ev_buf[8 *(sizeof(struct inotify_event) + NAME_MAX + 1) + 1];
static char cond[MAX_COND_LEN];
struct inotify_event *ev;
ssize_t sz, len;
svc_t *svc;
ssize_t sz, off;
size_t buflen = 8 *(sizeof(struct inotify_event) + NAME_MAX + 1) + 1;
char *buf;
sz = read(fd, ev_buf, sizeof(ev_buf) - 1);
if (sz <= 0) {
_pe("invalid inotify event");
buf= malloc(buflen);
if (!buf) {
_pe("Failed allocating buffer for inotify events");
return;
}
ev_buf[sz] = 0;
for (ev = (void *)ev_buf;
sz > (ssize_t)sizeof(*ev);
len = sizeof(*ev) + ev->len, ev = (void *)ev + len, sz -= len) {
if (!ev->mask || !strstr(ev->name, ".pid"))
continue;
svc = svc_find_by_pidfile(ev->name);
if (!svc)
continue;
mkcond(cond, sizeof(cond), svc->cmd);
if (ev->mask & (IN_CREATE | IN_ATTRIB | IN_MODIFY | IN_MOVED_TO)) {
svc_started(svc);
cond_set(cond);
} else if (ev->mask & IN_DELETE)
cond_clear(cond);
_d("pidfile: Entering ... reading %zu bytes into ev_buf[]", buflen - 1);
sz = read(fd, buf, buflen - 1);
if (sz <= 0) {
_pe("invalid inotify event");
goto done;
}
buf[sz] = 0;
_d("pidfile: Read %zd bytes, processing ...", sz);
off = 0;
for (off = 0; off < sz; off += sizeof(*ev) + ev->len) {
struct wd_entry *wde;
ev = (struct inotify_event *)&buf[off];
_d("pidfile: path %s, event: 0x%08x", ev->name, ev->mask);
if (!ev->mask)
continue;
/* Find base path for this event */
TAILQ_FOREACH(wde, &pidfile_ctx.wd_list, link) {
if (wde->fd == ev->wd)
break;
}
if (ev->mask & IN_ISDIR) {
handle_dir(&pidfile_ctx, wde, ev->name, ev->mask);
continue;
}
if (ev->mask & IN_DELETE) {
_d("pidfile %s/%s removed ...", wde->path, ev->name);
continue;
}
if (ev->mask & (IN_CREATE | IN_ATTRIB | IN_MODIFY | IN_MOVED_TO))
update_conds(wde->path, ev->name, ev->mask);
}
done:
free(buf);
}
/*
@@ -91,7 +274,7 @@ static void pidfile_reconf(void *arg)
if (svc_is_changed(svc) || svc_is_starting(svc))
continue;
mkcond(cond, sizeof(cond), svc->cmd);
mkcond(svc, cond, sizeof(cond));
if (cond_get(cond) == COND_ON)
continue;
@@ -110,8 +293,6 @@ static void pidfile_reconf(void *arg)
static void pidfile_init(void *arg)
{
char *path;
struct context *ctx = arg;
uint32_t mask = IN_CREATE | IN_ATTRIB | IN_DELETE | IN_MODIFY | IN_MOVED_TO;
/*
* The bootmisc plugin is responsible for setting up /var/run.
@@ -124,15 +305,9 @@ static void pidfile_init(void *arg)
return;
}
ctx->wd = inotify_add_watch(ctx->fd, path, mask);
free(path);
if (ctx->wd < 0) {
_pe("inotify_add_watch()");
close(ctx->fd);
return;
}
TAILQ_INIT(&pidfile_ctx.wd_list);
if (watcher_add(&pidfile_ctx, path))
close(pidfile_ctx.fd);
_d("pidfile monitor active");
}
@@ -144,7 +319,7 @@ static struct context pidfile_ctx;
*/
static plugin_t plugin = {
.name = __FILE__,
.hook[HOOK_BASEFS_UP] = { .arg = &pidfile_ctx, .cb = pidfile_init },
.hook[HOOK_BASEFS_UP] = { .cb = pidfile_init },
.hook[HOOK_SVC_RECONF] = { .cb = pidfile_reconf },
.io = {
.cb = pidfile_callback,
@@ -167,7 +342,13 @@ PLUGIN_INIT(plugin_init)
PLUGIN_EXIT(plugin_exit)
{
inotify_rm_watch(pidfile_ctx.fd, pidfile_ctx.wd);
struct wd_entry *wde, *tmp;
TAILQ_FOREACH_SAFE(wde, &pidfile_ctx.wd_list, link, tmp) {
inotify_rm_watch(pidfile_ctx.fd, wde->fd);
free(wde->path);
free(wde);
}
close(pidfile_ctx.fd);
plugin_unregister(&plugin);
+4 -2
View File
@@ -1,4 +1,4 @@
EXTRA_DIST = rescue.conf
EXTRA_DIST = rescue.conf cgreaper.sh
AM_CPPFLAGS = -U_FORTIFY_SOURCE
AM_CPPFLAGS += -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_GNU_SOURCE -D_DEFAULT_SOURCE
if STATIC
@@ -8,15 +8,17 @@ else
AM_LDFLAGS = -export-dynamic
endif
bin_PROGRAMS = logit
sbin_PROGRAMS = finit initctl reboot
pkglibexec_SCRIPTS = cgreaper.sh
if WATCHDOGD
pkglibexec_PROGRAMS = watchdogd
endif
if LOGIT
bin_PROGRAMS = logit
logit_SOURCES = logit.c
logit_CFLAGS = -W -Wall -Wextra -Wno-unused-parameter -std=gnu99
endif
finit_SOURCES = api.c cgroup.c cgroup.h \
cond.c cond-w.c cond.h \
+10 -50
View File
@@ -108,11 +108,11 @@ static int missing(char *job, char *id)
return 1;
}
static int do_query(struct init_request *rq, size_t len)
static int do_query(char *buf, size_t len)
{
memset(query_buf, 0, sizeof(query_buf));
if (svc_parse_jobstr(rq->data, strlen(rq->data) + 1, NULL, missing)) {
memcpy(rq->data, query_buf, sizeof(rq->data));
if (svc_parse_jobstr(buf, len, NULL, missing)) {
memcpy(buf, query_buf, len);
return 1;
}
@@ -181,47 +181,6 @@ ev_t ev_list[] = {
{ NULL, NULL }
};
static int do_handle_event(char *event)
{
int i;
for (i = 0; ev_list[i].event; i++) {
ev_t *e = &ev_list[i];
size_t len = MAX(strlen(e->event), strlen(event));
if (!strncasecmp(e->event, event, len)) {
e->cb();
return 0;
}
}
if (event[0] == '-')
cond_clear(&event[1]);
else if (event[0] == '+')
cond_set(&event[1]);
else
cond_set(event);
return 0;
}
static int do_handle_emit(char *buf, size_t len)
{
int result = 0;
char *input, *event, *pos;
input = sanitize(buf, len);
if (!input)
return -1;
event = strtok_r(input, " ", &pos);
while (event) {
result += do_handle_event(event);
event = strtok_r(NULL, " ", &pos);
}
return result;
}
static void send_svc(int sd, svc_t *svc)
{
svc_t empty;
@@ -316,31 +275,30 @@ static void api_cb(uev_t *w, void *arg, int events)
case INIT_CMD_START_SVC:
_d("start %s", rq.data);
strterm(rq.data, sizeof(rq.data));
result = do_start(rq.data, sizeof(rq.data));
break;
case INIT_CMD_STOP_SVC:
_d("stop %s", rq.data);
strterm(rq.data, sizeof(rq.data));
result = do_stop(rq.data, sizeof(rq.data));
break;
case INIT_CMD_RESTART_SVC:
_d("restart %s", rq.data);
strterm(rq.data, sizeof(rq.data));
result = do_restart(rq.data, sizeof(rq.data));
break;
#ifdef INETD_ENABLED
case INIT_CMD_QUERY_INETD:
_d("query inetd");
strterm(rq.data, sizeof(rq.data));
result = do_query_inetd(rq.data, sizeof(rq.data));
break;
#endif
case INIT_CMD_EMIT:
_d("emit %s", rq.data);
result = do_handle_emit(rq.data, sizeof(rq.data));
break;
case INIT_CMD_GET_RUNLEVEL:
_d("get runlevel");
rq.runlevel = runlevel;
@@ -390,11 +348,13 @@ static void api_cb(uev_t *w, void *arg, int events)
case INIT_CMD_SVC_QUERY:
_d("svc query: %s", rq.data);
result = do_query(&rq, len);
strterm(rq.data, sizeof(rq.data));
result = do_query(rq.data, sizeof(rq.data));
break;
case INIT_CMD_SVC_FIND:
_d("svc find: %s", rq.data);
strterm(rq.data, sizeof(rq.data));
send_svc(sd, do_find(rq.data, sizeof(rq.data)));
goto leave;
+15 -18
View File
@@ -63,13 +63,15 @@ void cgroup_init(void)
continue;
snprintf(rc, sizeof(rc), "/sys/fs/cgroup/%s", cgroup);
mkdir(rc, 0755);
if (mkdir(rc, 0755) && EEXIST != errno)
continue;
if (mount("cgroup", rc, "cgroup", opts, cgroup))
_d("Failed mounting %s cgroup on %s", cgroup, rc);
}
/* Default cgroups for process monitoring */
mkdir("/sys/fs/cgroup/finit", 0755);
if (mkdir("/sys/fs/cgroup/finit", 0755) && EEXIST != errno)
goto fail;
if (mount("none", "/sys/fs/cgroup/finit", "cgroup", opts, "none,name=finit")) {
_pe("Failed mounting Finit cgroup hierarchy");
goto fail;
@@ -80,9 +82,12 @@ void cgroup_init(void)
echo("/sys/fs/cgroup/finit/notify_on_release", 0, "1");
/* Default groups, PID 1, services, and user/login processes */
mkdir("/sys/fs/cgroup/finit/init", 0755);
mkdir("/sys/fs/cgroup/finit/system", 0755);
mkdir("/sys/fs/cgroup/finit/user", 0755);
if (mkdir("/sys/fs/cgroup/finit/init", 0755) && EEXIST != errno)
goto fail;
if (mkdir("/sys/fs/cgroup/finit/system", 0755) && EEXIST != errno)
goto fail;
if (mkdir("/sys/fs/cgroup/finit/user", 0755) && EEXIST != errno)
goto fail;
/* Move ourselves to init */
echo("/sys/fs/cgroup/finit/init/cgroup.procs", 0, "1");
@@ -93,11 +98,11 @@ fail:
fclose(fp);
}
static int move_pid(char *group, char *name, int pid)
static int move_pid(char *group, char *name, char *id, int pid)
{
char path[256];
snprintf(path, sizeof(path), "/sys/fs/cgroup/%s/%s", group, name);
snprintf(path, sizeof(path), "/sys/fs/cgroup/%s/%s:%s", group, name, id);
if (mkdir(path, 0755) && errno != EEXIST)
return 1;
@@ -111,13 +116,11 @@ int cgroup_user(char *name)
if (!cg_init)
return 0;
return move_pid("finit/user", name, getpid());
return move_pid("finit/user", name, "0", getpid());
}
int cgroup_service(char *cmd, int pid)
int cgroup_service(char *nm, char *id, int pid)
{
char *nm;
if (!cg_init)
return 0;
@@ -126,13 +129,7 @@ int cgroup_service(char *cmd, int pid)
return 1;
}
nm = strrchr(cmd, '/');
if (nm)
nm++;
else
nm = cmd;
return move_pid("finit/system", nm, pid);
return move_pid("finit/system", nm, id, pid);
}
/**
+1 -1
View File
@@ -27,6 +27,6 @@
void cgroup_init (void);
int cgroup_user (char *name);
int cgroup_service (char *cmd, int pid);
int cgroup_service (char *cmd, char *id, int pid);
#endif /* FINIT_CGROUP_H_ */
+82 -1
View File
@@ -31,6 +31,86 @@
#include "pid.h"
#include "service.h"
/*
* The service condition name is constructed from the 'svc/' prefix, the
* dirname of the svc->cmd, e.g., '/usr/bin/teamd' => 'usr/bin', and the
* service's pid:filename, including an optional subdirectory, without
* the .pid extension.
*
* The following example uses the team (aggregate) service:
*
* service pid:!/run/teamd/a1.pid /usr/bin/teamd -f /etc/teamd/a1.conf
*
* => 'svc/' + 'usr/bin' + 'teamd/a1' => svc/usr/bin/teamd/a1
*
* The next example uses the dbus-daemon:
*
* service pid:!/run/dbus/pid /usr/bin/dbus-daemon
*
* => 'svc/' + 'usr/bin' + 'dbus' => svc/usr/bin/dbus
*
* The last example uses lxc-start to start container foo:
*
* service pid:!/run/lxc/foo.pid lxc-start -n foo -F -p /run/lxc/foo.pid -- Container foo
*
* => 'svc/' + '' + 'lxc/foo' => svc/lxc/foo
*/
char *mkcond(svc_t *svc, char *buf, size_t len)
{
char path[256];
char *pidfile;
char *ptr, *nm;
strlcpy(path, svc->cmd, sizeof(path));
ptr = rindex(path, '/');
if (ptr)
*ptr++ = 0;
else
path[0] = 0;
/* Figure out default name used when registering service */
if (ptr)
nm = ptr;
else
nm = svc->cmd;
pidfile = pid_file(svc);
ptr = strstr(pidfile, "run");
if (ptr)
ptr += 3;
else
ptr = rindex(pidfile, '/');
/* Custom name:foo declaration found => svc/foo instead of /svc/bin/path/pidfile-.pid */
if (strcmp(nm, svc->name)) {
snprintf(buf, len, "svc/%s", svc->name);
_d("Composed condition from svc->name %s => %s", svc->name, buf);
} else {
snprintf(buf, len, "svc%s%s%s", path[0] != 0 && path[0] != '/' ? "/" : "", path, ptr);
_d("Composed condition from cmd %s (path %s) and pidfile %s => %s", svc->cmd, path, ptr, buf);
}
/* Case: /var/run/dbus/pid */
ptr = strstr(buf, "/pid");
if (ptr && !strcmp(ptr, "/pid"))
*ptr = 0;
/* Case /var/run/teamd/a1.pid */
ptr = strstr(buf, ".pid");
if (ptr && !strcmp(ptr, ".pid"))
*ptr = 0;
/* Always append /ID if service is declared with :ID */
if (svc->id[0]) {
strlcat(buf, "/", len);
strlcat(buf, svc->id, len);
}
_d("Creating condition => %s", buf);
return buf;
}
static int cond_set_gen(const char *file, unsigned int gen)
{
char *ptr, path[256];
@@ -128,6 +208,7 @@ static int svc_has_cond(svc_t *svc)
case SVC_TYPE_SERVICE:
case SVC_TYPE_TASK:
case SVC_TYPE_RUN:
case SVC_TYPE_SYSV:
return 1;
default:
@@ -171,7 +252,7 @@ void cond_set_oneshot(const char *name)
return;
path = cond_path(name);
_d("s => %s", name, path);
_d("%s => %s", name, path);
if (cond_checkpath(path))
return;
+6 -13
View File
@@ -29,13 +29,6 @@
#include "pid.h"
#include "service.h"
char *mkcond(char *buf, size_t len, char *nm)
{
snprintf(buf, len, "svc%s%s", nm[0] != '/' ? "/" : "", nm);
return buf;
}
const char *condstr(enum cond_state s)
{
static const char *strs[] = {
@@ -49,18 +42,18 @@ const char *condstr(enum cond_state s)
const char *cond_path(const char *name)
{
static char path[256];
char tmp[MAX_ARG_LEN];
static char file[MAX_ARG_LEN];
snprintf(tmp, sizeof(tmp), COND_PATH "/%s", name);
return pid_runpath(tmp, file, sizeof(file));
return pid_runpath(tmp, path, sizeof(path));
}
unsigned int cond_get_gen(const char *file)
{
char *ptr, path[256];
unsigned int gen;
char *ptr, path[256];
FILE *fp;
int ret;
@@ -99,9 +92,9 @@ enum cond_state cond_get(const char *name)
enum cond_state cond_get_agg(const char *names)
{
char *cond;
enum cond_state s = COND_ON;
static char conds[MAX_COND_LEN];
enum cond_state s = COND_ON;
char *cond;
if (!names)
return COND_ON;
@@ -115,8 +108,8 @@ enum cond_state cond_get_agg(const char *names)
int cond_affects(const char *name, const char *names)
{
char *cond;
static char conds[MAX_COND_LEN];
char *cond;
if (!name || !names)
return 0;
+2 -1
View File
@@ -2,6 +2,7 @@
#define FINIT_COND_H_
#include <paths.h>
#include <svc.h>
#define COND_DIR "finit/cond"
#define COND_PATH _PATH_VARRUN COND_DIR
@@ -13,7 +14,7 @@ typedef enum cond_state {
COND_ON
} cond_state_t;
char *mkcond (char *buf, size_t len, char *nm);
char *mkcond (svc_t *svc, char *buf, size_t len);
const char *condstr (enum cond_state s);
const char *cond_path (const char *name);
unsigned int cond_get_gen (const char *path);
+11
View File
@@ -464,6 +464,12 @@ static void parse_dynamic(char *line, struct rlimit rlimit[], char *file)
return;
}
/* Similar to task but is treated like a SysV init script */
if (MATCH_CMD(line, "sysv ", x)) {
service_register(SVC_TYPE_SYSV, x, rlimit, file);
return;
}
/* Classic inetd service */
if (MATCH_CMD(line, "inetd ", x)) {
#ifdef INETD_ENABLED
@@ -699,6 +705,8 @@ static int do_change(char *name, uint32_t mask)
{
struct conf_change *node;
_d("Change detected for %s, mask 0x%08x", name, mask);
node = conf_find(name);
if (mask & (IN_DELETE | IN_MOVED_FROM)) {
drop_change(node);
@@ -777,8 +785,10 @@ static void conf_cb(uev_t *w, void *arg, int events)
}
}
#ifdef ENABLE_AUTO_RELOAD
if (conf_any_change())
service_reload_dynamic();
#endif
}
static int add_watcher(uev_ctx_t *ctx, uev_t *w, char *path, uint32_t opt)
@@ -831,6 +841,7 @@ static int add_watcher(uev_ctx_t *ctx, uev_t *w, char *path, uint32_t opt)
close(fd);
return 1;
}
_d("Set up inotify watcher for %s ...", path);
return 0;
}
+29 -23
View File
@@ -231,6 +231,7 @@ int exec_runtask(char *cmd, char *args[])
strlcat(buf, args[i], sizeof(buf));
}
logit(LOG_DEBUG, "Calling %s %s", _PATH_BSHELL, buf);
_d("Calling %s %s", _PATH_BSHELL, buf);
return execvp(_PATH_BSHELL, argv);
}
@@ -239,6 +240,7 @@ static void prepare_tty(char *tty, speed_t speed, char *procname, struct rlimit
{
struct sigaction sa;
struct termios term;
char name[80];
/*
* Reset to sane defaults in case of messup from prev. session
@@ -282,13 +284,16 @@ static void prepare_tty(char *tty, speed_t speed, char *procname, struct rlimit
/* Finit is responsible for the UTMP INIT_PROCESS record */
utmp_set_init(tty, 0);
prctl(PR_SET_NAME, procname, 0, 0, 0);
if (!strncmp("/dev/", tty, 5))
tty += 5;
snprintf(name, sizeof(name), "%s %s", procname, tty);
prctl(PR_SET_NAME, name, 0, 0, 0);
}
static int activate_console(int noclear, int nowait)
{
struct termios orig;
int ret = 0;
struct termios term;
if (!noclear)
(void)write(STDERR_FILENO, "\e[r\e[H\e[J", 9);
@@ -297,15 +302,20 @@ static int activate_console(int noclear, int nowait)
return 1;
/* Disable ECHO, XON/OFF while waiting for <CR> */
if (!tcgetattr(STDIN_FILENO, &term)) {
term.c_iflag &= ~(IXON|IXOFF);
term.c_lflag &= ~ECHO;
tcsetattr(STDIN_FILENO, TCSANOW, &term);
if (!tcgetattr(STDIN_FILENO, &orig)) {
struct termios c = orig;
c.c_iflag &= ~(BRKINT|ICRNL|INPCK|ISTRIP|IXON|IXOFF);
c.c_oflag &= ~(OPOST);
c.c_cflag |= (CS8);
c.c_lflag &= ~(ECHO|ICANON|IEXTEN|ISIG);
tcsetattr(STDIN_FILENO, TCSANOW, &c);
}
while (!fexist(SYNC_SHUTDOWN)) {
char c;
static const char clr[] = "\r\e[2K";
static const char cup[] = "\e[A";
static const char msg[] = "\nPlease press Enter to activate this console.";
if (fexist(SYNC_STOPPED)) {
@@ -315,23 +325,21 @@ static int activate_console(int noclear, int nowait)
(void)write(STDERR_FILENO, clr, strlen(clr));
(void)write(STDERR_FILENO, msg, strlen(msg));
while (read(STDIN_FILENO, &c, 1) == 1 && c != '\n')
while (read(STDIN_FILENO, &c, 1) == 1 && c != '\r')
continue;
if (fexist(SYNC_STOPPED))
continue;
(void)write(STDERR_FILENO, clr, strlen(clr));
(void)write(STDERR_FILENO, cup, strlen(cup));
ret = 1;
break;
}
/* Restore ECHO, XON/OFF */
if (!tcgetattr(STDIN_FILENO, &term)) {
term.c_iflag |= IXON|IXOFF;
term.c_lflag |= ECHO;
tcsetattr(STDIN_FILENO, TCSANOW, &term);
}
/* Restore TTY */
if (tcsetattr(STDIN_FILENO, TCSANOW, &orig) == -1)
ret = 0;
return ret;
}
@@ -361,15 +369,12 @@ pid_t run_getty(char *tty, char *baud, char *term, int noclear, int nowait, stru
pid = fork();
if (!pid) {
speed_t speed = B38400;
speed_t speed;
if (baud && baud[0]) {
speed = stty_parse_speed(baud);
if (B0 == speed)
logit(LOG_CRIT, "TTY %s: Invalid speed %s", tty, baud);
}
speed = stty_parse_speed(baud);
logit(LOG_INFO, "Starting built-in getty on %s, speed %u", tty, speed);
prepare_tty(tty, speed, "tty", rlimit);
prepare_tty(tty, speed, "finit-getty", rlimit);
if (activate_console(noclear, nowait))
_exit(getty(tty, speed, term, NULL));
}
@@ -407,6 +412,7 @@ pid_t run_getty2(char *tty, char *cmd, char *args[], int noclear, int nowait, st
dup2(fd, STDERR_FILENO);
/* Dunno speed, tell stty() to not mess with it */
logit(LOG_INFO, "Starting external getty on %s, speed %u", tty, B0);
prepare_tty(tty, B0, "getty", rlimit);
if (ioctl(STDIN_FILENO, TIOCSCTTY, 1) < 0)
@@ -460,7 +466,7 @@ int run_parts(char *dir, char *cmd)
char *name = e[i]->d_name;
pid_t pid = 0;
snprintf(path, sizeof(path), "%s/%s ", dir, name);
snprintf(path, sizeof(path), "%s/%s", dir, name);
if (stat(path, &st)) {
_d("Failed stat(%s): %s", path, strerror(errno));
continue;
@@ -476,9 +482,9 @@ int run_parts(char *dir, char *cmd)
/* Check if S<NUM>service or K<NUM>service notation is used */
_d("Checking if %s is a sysvinit startstop script ...", name);
if (name[0] == 'S' && isdigit(name[1]))
strlcat(path, "start", sizeof(path));
strlcat(path, " start", sizeof(path));
else if (name[0] == 'K' && isdigit(name[1]))
strlcat(path, "stop", sizeof(path));
strlcat(path, " stop", sizeof(path));
} else {
strlcat(path, cmd, sizeof(path));
}
+44 -15
View File
@@ -73,9 +73,6 @@ static int udev = 0; /* Runtime detection of udev */
*/
static void banner(void)
{
char *buf = INIT_HEADING;
char separator[SCREEN_WIDTH];
if (plugin_exists(HOOK_BANNER)) {
plugin_run_hooks(HOOK_BANNER);
return;
@@ -84,8 +81,7 @@ static void banner(void)
if (log_is_silent())
return;
memset(separator, '=', sizeof(separator));
fprintf(stderr, "\n\e[2K\e[1m%s %.*s\e[0m\n", buf, SCREEN_WIDTH - (int)strlen(buf) - 2, separator);
print_banner(INIT_HEADING);
}
static int ismnt(char *file, char *dir)
@@ -309,7 +305,7 @@ static void final_worker(void *work)
finalize();
}
int main(int argc, char* argv[])
int main(int argc, char *argv[])
{
struct wq crank = {
.cb = crank_worker
@@ -329,6 +325,19 @@ int main(int argc, char* argv[])
if (getpid() != 1)
return client(argc, argv);
/*
* Hide command line arguments from ps (in particular for
* forked children that don't execv()). This is an ugly
* hack that only works on Linux.
* https://web.archive.org/web/20110227041321/http://netsplit.com/2007/01/10/hiding-arguments-from-ps/
*/
if (argc > 1) {
char *arg_end;
arg_end = argv[argc-1] + strlen (argv[argc-1]);
*arg_end = ' ';
}
/*
* Initalize event context.
*/
@@ -412,9 +421,9 @@ int main(int argc, char* argv[])
else if (whichp("udevadm"))
run_interactive("udevadm info --cleanup-db", "Cleaning up udev db");
/* Some systems use /dev/pts */
/* Modern systems use /dev/pts */
makedir("/dev/pts", 0755);
mount("devpts", "/dev/pts", "devpts", 0, "gid=5,mode=620");
mount("devpts", "/dev/pts", "devpts", 0, "gid=5,mode=620,ptmxmode=0666");
/*
* Some systems rely on us to both create /dev/shm and, to mount
@@ -424,14 +433,14 @@ int main(int argc, char* argv[])
*/
makedir("/dev/shm", 0755);
if (!fismnt("/dev/shm") && !ismnt("/etc/fstab", "/dev/shm"))
mount("shm", "/dev/shm", "tmpfs", 0, NULL);
mount("shm", "/dev/shm", "tmpfs", 0, "mode=0777");
/*
* New tmpfs based /run for volatile runtime data
* For details, see http://lwn.net/Articles/436012/
*/
if (fisdir("/run") && !fismnt("/run"))
mount("tmpfs", "/run", "tmpfs", MS_NODEV, "mode=0755,size=10%");
mount("tmpfs", "/run", "tmpfs", MS_NODEV | MS_NOSUID | MS_NOEXEC, "mode=0755,size=10%");
umask(022);
/* Bootstrap conditions, needed for hooks */
@@ -483,16 +492,36 @@ int main(int argc, char* argv[])
* Start bundled watchdogd as soon as possible, if enabled
*/
if (which(FINIT_LIBPATH_ "/watchdogd"))
service_register(SVC_TYPE_SERVICE, FINIT_LIBPATH_ "/watchdogd", global_rlimit, NULL);
service_register(SVC_TYPE_SERVICE, FINIT_LIBPATH_ "/watchdogd -- Finit watchdog daemon", global_rlimit, NULL);
/*
* Mount filesystems
*/
if (!rescue) {
#ifdef REMOUNT_ROOTFS
run("mount -n -o remount,rw /");
#endif
#ifdef SYSROOT
#ifndef SYSROOT
/*
* Remount / read-write if it exists in fstab is not 'ro'.
* This is what the Debian sysv initscripts does.
*/
if (setfsent()) {
struct fstab *fs;
while ((fs = getfsent())) {
if (strcmp(fs->fs_file, "/"))
continue;
if (strcmp(fs->fs_type, "ro"))
run_interactive("mount -n -o remount,rw /", "Remounting / as read-write");
break;
}
endfsent();
}
#else
/*
* XXX: Untested, in the initramfs age we should
* probably use switch_root instead.
*/
mount(SYSROOT, "/", NULL, MS_MOVE, NULL);
#endif
}
+2 -2
View File
@@ -45,7 +45,6 @@
#define _PATH_VARRUN "/var/run/"
#endif
#define CMD_SIZE 256
#define LINE_SIZE 1024
#define BUF_SIZE 4096
@@ -75,7 +74,7 @@
#define INIT_CMD_RELOAD_SVC 12 /* SIGHUP service */
#define INIT_CMD_RESTART_SVC 13 /* STOP + START service */
#define INIT_CMD_QUERY_INETD 14
#define INIT_CMD_EMIT 15
#define INIT_CMD_UNUSED1 15 /* Unused, was INIT_CMD_EMIT */
#define INIT_CMD_GET_RUNLEVEL 16
#define INIT_CMD_WDOG_HELLO 128 /* Watchdog register and hello */
#define INIT_CMD_SVC_ITER 129
@@ -84,6 +83,7 @@
#define INIT_CMD_NACK 254
#define INIT_CMD_ACK 255
/* Traditionally aligned on 384 bytes */
struct init_request {
int magic; /* Magic number */
int cmd; /* What kind of request */
+7 -5
View File
@@ -211,8 +211,9 @@ static int do_login(char *name)
int getty(char *tty, speed_t speed, char *term, char *user)
{
int fd;
const char cln[] = "\r\e[2K\n";
char name[30];
int fd;
/* Detach from initial controlling TTY */
vhangup();
@@ -224,10 +225,15 @@ int getty(char *tty, speed_t speed, char *term, char *user)
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
close(fd);
if (ioctl(STDIN_FILENO, TIOCSCTTY, 1) < 0)
warn("Failed TIOCSCTTY");
/* Set up TTY, re-enabling ISIG et al. */
stty(STDIN_FILENO, speed);
(void)write(STDOUT_FILENO, cln, strlen(cln));
/* The getty process is responsible for the UTMP login record */
utmp_set_login(tty, NULL);
if (!user)
@@ -235,10 +241,6 @@ int getty(char *tty, speed_t speed, char *term, char *user)
else
strlcpy(name, user, sizeof(name));
/* Set up TTY, re-enabling ISIG et al. */
stty(fd, speed);
close(fd);
if (term && term[0])
setenv("TERM", term, 1);
+132 -32
View File
@@ -39,6 +39,30 @@
#include "util.h"
#include "utmp-api.h"
static int progress_style = PROGRESS_STYLE;
/*
* Note: the pending status (⋯) must be last item. Also, ⋯ is not
* off-by-one, it's a multi-byte character.
*/
#define STATUS_CLASS { \
CHOOSE(" OK ", " OK ", "\e[1;32m"), /* Green */ \
CHOOSE("FAIL", "FAIL", "\e[1;31m"), /* Red */ \
CHOOSE("WARN", "WARN", "\e[1;31m"), /* Red */ \
CHOOSE(" \\/ ", " ⋯ ", "\e[1;33m"), /* Yellow */ \
}
#define CHOOSE(x,y,z) x
static const char *status1[] = STATUS_CLASS;
#undef CHOOSE
#define CHOOSE(x,y,z) y
static const char *status2[] = STATUS_CLASS;
#undef CHOOSE
#define CHOOSE(x,y,z) z
static const char *color[] = STATUS_CLASS;
char *strip_line(char *line)
{
@@ -57,6 +81,81 @@ char *strip_line(char *line)
return line;
}
/*
* Return screen length of string, not counting escape chars, and
* accounting for unicode characters as only one screen byte wide
*/
size_t slen(char *string)
{
unsigned char *buf = (unsigned char *)string;
size_t len = 0;
while (*buf) {
/* Skip ANSI escape sequences */
if (*buf == '\e') {
while (*buf && !isalpha(*buf))
buf++;
continue;
}
/* Skip 3-byte unicode */
if (*buf == 0xe2) {
for (int cnt = 3; *buf && cnt >= 0; cnt--)
buf++;
continue;
}
len++;
buf++;
}
return len;
}
/*
* ch may be an ascii or unicode character
*/
static char *pad(char *buf, size_t len, char *ch, size_t width)
{
size_t i = slen(buf);
strlcat(buf, " ", len);
width -= 8; /* Skip leading '[ STAT ]' */
while (i < width) {
strlcat(buf, ch, len);
i++;
}
return buf;
}
void print_banner(const char *heading)
{
char buf[4 * SCREEN_WIDTH];
memset(buf, 0, sizeof(buf));
strlcat(buf, "\r\e[2K", sizeof(buf));
if (progress_style == 1) {
strlcat(buf, "\e[1m", sizeof(buf));
strlcat(buf, heading, sizeof(buf));
pad(buf, sizeof(buf), "=", SCREEN_WIDTH - 2);
} else {
size_t wmax = 80 <= SCREEN_WIDTH ? 80 : SCREEN_WIDTH;
strlcat(buf, "\e[1;31m⏺ \e[1;33m⏺ \e[1;32m⏺ \e[0m\e[1m ", sizeof(buf));
strlcat(buf, heading, sizeof(buf));
/*
* Padding with full-width '═' sign from unicode,
* we could also use '―' or something else.
*/
pad(buf, sizeof(buf), "═", wmax);
}
strlcat(buf, "\e[0m\n", sizeof(buf));
(void)write(STDERR_FILENO, buf, strlen(buf));
}
static size_t print_timestamp(char *buf, size_t len)
{
#if defined(CONFIG_PRINTK_TIME)
@@ -77,6 +176,26 @@ static size_t print_timestamp(char *buf, size_t len)
#endif
}
static char *status(int rc)
{
static char buf[64];
if (rc < 0 || rc >= (int)NELEMS(status1))
rc = NELEMS(status1) - 1; /* Default to "⋯" (pending) */
if (progress_style == 1) {
int hl = 1;
if (rc == 1 || rc == 2)
hl = 7;
snprintf(buf, sizeof(buf), "\e[%dm[%s]\e[0m", hl, status1[rc]);
} else
snprintf(buf, sizeof(buf), "\e[1m[%s%s\e[0m\e[1m]\e[0m ", color[rc], status2[rc]);
return buf;
}
void printv(const char *fmt, va_list ap)
{
char buf[SCREEN_WIDTH];
@@ -91,51 +210,32 @@ void printv(const char *fmt, va_list ap)
len = print_timestamp(buf, sizeof(buf));
vsnprintf(&buf[len], sizeof(buf) - len, fmt, ap);
len = strlen(buf);
buf[len++] = ' ';
for (size_t i = len; i < (sizeof(buf) - 8); i++)
buf[i] = '.'; /* pad with dots. */
fprintf(stderr, "\r%s ", buf);
if (progress_style == 1)
fprintf(stderr, "\r%s ", pad(buf, sizeof(buf), ".", sizeof(buf)));
else
fprintf(stderr, "\r\e[2K%s%s", status(3), buf);
}
void print(int action, const char *fmt, ...)
void print(int rc, const char *fmt, ...)
{
va_list ap;
const char success[] = "\e[1m[ OK ]\e[0m\n";
const char failure[] = "\e[7m[FAIL]\e[0m\n";
const char warning[] = "\e[7m[WARN]\e[0m\n";
const char pending[] = "\e[1m[ \\/ ]\e[0m\n";
if (log_is_silent())
return;
if (fmt) {
va_list ap;
va_start(ap, fmt);
printv(fmt, ap);
va_end(ap);
}
switch (action) {
case -1:
break;
if (rc < 0)
return;
case 0:
write(STDERR_FILENO, success, sizeof(success));
break;
case 1:
write(STDERR_FILENO, failure, sizeof(failure));
break;
case 2:
write(STDERR_FILENO, warning, sizeof(warning));
break;
default:
write(STDERR_FILENO, pending, sizeof(pending));
break;
}
if (progress_style == 1)
fprintf(stderr, "%s\n", status(rc));
else
fprintf(stderr, ".\r%s\n", status(rc));
}
void print_desc(char *action, char *desc)
+1
View File
@@ -57,6 +57,7 @@ int sh (char *tty);
int stty (int fd, speed_t speed);
speed_t stty_parse_speed(char *baud);
void print_banner (const char *heading);
void printv (const char *fmt, va_list ap);
void print (int action, const char *fmt, ...);
void print_desc (char *action, char *desc);
+21 -28
View File
@@ -140,7 +140,6 @@ static int do_svc(int cmd, char *arg)
return client_send(&rq, sizeof(rq));
}
static int do_emit (char *arg) { return do_svc(INIT_CMD_EMIT, arg); }
static int do_reload (char *arg) { return do_svc(INIT_CMD_RELOAD, arg); }
/*
@@ -202,22 +201,6 @@ static void show_cond_one(const char *_conds)
putchar('>');
}
static int do_cond_magic(char op, char *cond)
{
char event[368]; /* sizeof(init_request.data) */
if (!cond || strlen(cond) < 1)
return 1;
event[0] = op;
strlcpy(&event[1], cond, sizeof(event) - 1);
return do_emit(event);
}
static int do_cond_set (char *cond) { return do_cond_magic('+', cond); }
static int do_cond_clear(char *cond) { return do_cond_magic('-', cond); }
static int dump_one_cond(const char *fpath, const struct stat *sb, int tflag, struct FTW *ftwbuf)
{
int len;
@@ -279,8 +262,6 @@ static int do_cond(char *cmd)
char *arg;
struct command command[] = {
{ "show", do_cond_show },
{ "set", do_cond_set },
{ "clear", do_cond_clear },
{ "dump", do_cond_dump },
{ NULL, NULL }
};
@@ -435,17 +416,17 @@ static int show_status(char *arg)
}
if (!verbose)
printheader(NULL, "# STATUS PID RUNLEVELS SERVICE DESCRIPTION", 0);
printheader(NULL, "# STATUS PID RUNLEVELS SERVICE DESCRIPTION", 0);
for (svc = client_svc_iterator(1); svc; svc = client_svc_iterator(0)) {
char jobid[20], args[512] = "", *lvls;
// if (svc_is_unique(svc))
// snprintf(jobid, sizeof(jobid), "%d", svc->job);
// else
if (!svc->id[0])
snprintf(jobid, sizeof(jobid), "%d", svc->job);
else
snprintf(jobid, sizeof(jobid), "%d:%s", svc->job, svc->id);
printf("%-9s %7s ", jobid, svc_status(svc));
printf("%-9s %8s ", jobid, svc_status(svc));
if (svc_is_inetd(svc))
printf("inetd ");
else
@@ -531,7 +512,7 @@ static int dump_cgroup(const char *fpath, const struct stat *sb, int tflag, stru
group = strrchr(fpath, '/');
if (!group)
return 0;
goto err;
group++;
while (fgets(buf, sizeof(buf), fp)) {
@@ -552,8 +533,9 @@ static int dump_cgroup(const char *fpath, const struct stat *sb, int tflag, stru
printf("\n%c :- %d %s", user ? ' ' : '|', pid, buf);
}
fclose(fp);
err:
fclose(fp);
if (num)
printf("\r%c\n", user ? ' ' : '|');
@@ -595,8 +577,6 @@ static int usage(int rc)
" reload Reload *.conf in /etc/finit.d/ (activates changes)\n"
// " reload <JOB|NAME>[:ID] Reload (SIGHUP) service by job# or name\n"
"\n"
" cond set <COND> Set (assert) condition => +COND\n"
" cond clear <COND> Clear (deassert) condition => -COND\n"
" cond show Show condition status\n"
" cond dump Dump all conditions and their status\n"
"\n"
@@ -708,6 +688,19 @@ int main(int argc, char *argv[])
return usage(1);
}
void logit(int prio, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if (prio <= LOG_ERR)
verrx(1, fmt, ap);
else
vwarnx(fmt, ap);
va_end(ap);
}
/**
* Local Variables:
* indent-tabs-mode: t
+1 -3
View File
@@ -62,10 +62,8 @@ void log_init(int dbg)
void log_exit(void)
{
muffler();
if (!silent) {
if (!silent)
sched_yield();
fputs("\n", stderr);
}
/*
* Unless in debug mode at shutdown, Reinitialize screen,
+5
View File
@@ -26,6 +26,11 @@
#include <syslog.h>
/* Local facility, unused in GNU but available in FreeBSD or sysklogd >= 2.0 */
#ifndef LOG_CONSOLE
#define LOG_CONSOLE (14<<3)
#endif
/*
* Developer error and debug messages, otherwise --> use logit() <--
* ~~~~~~~~~~~
+21 -2
View File
@@ -45,7 +45,7 @@ int pid_alive(pid_t pid)
{
char name[24]; /* Enough for max pid_t */
snprintf(name, sizeof(name), "/proc/%d", pid);
snprintf(name, sizeof(name), "/proc/%d/status", pid);
return fexist(name);
}
@@ -95,8 +95,8 @@ char *pid_get_name(pid_t pid, char *name, size_t len)
char *pid_file(svc_t *svc)
{
static char path[256];
char fn[MAX_ARG_LEN];
static char path[MAX_ARG_LEN];
if (svc->pidfile[0]) {
if (svc->pidfile[0] == '!')
@@ -109,6 +109,25 @@ char *pid_file(svc_t *svc)
return pid_runpath(fn, path, sizeof(path));
}
pid_t pid_file_read(const char *fn)
{
pid_t pid = 0;
FILE *fp;
char buf[42];
fp = fopen(fn, "r");
if (!fp)
return -1;
if (fgets(buf, sizeof(buf), fp)) {
chomp(buf);
pid = atoi(buf);
}
fclose(fp);
return pid;
}
int pid_file_create(svc_t *svc)
{
FILE *fp;
+6 -2
View File
@@ -31,6 +31,7 @@ int pid_alive (pid_t pid);
char *pid_get_name (pid_t pid, char *name, size_t len);
char *pid_file (svc_t *svc);
pid_t pid_file_read (const char *fn);
int pid_file_create (svc_t *svc);
int pid_file_parse (svc_t *svc, char *arg);
@@ -46,8 +47,9 @@ int pid_file_parse (svc_t *svc, char *arg);
*/
static inline char *pid_runpath(const char *file, char *path, size_t len)
{
static int unknown = 1;
static char *prefix = "/var/run";
static int unknown = 1;
int rc;
if (unknown) {
if (fisdir("/run"))
@@ -60,7 +62,9 @@ static inline char *pid_runpath(const char *file, char *path, size_t len)
else if (!strncmp(file, "/run/", 5))
file += 5;
snprintf(path, len, "%s/%s", prefix, file);
rc = snprintf(path, len, "%s/%s", prefix, file);
if (rc < 0 || (size_t)rc >= len)
_e("File path '%s' truncated, should end with '%s'", path, file);
return path;
}
+1 -1
View File
@@ -33,7 +33,7 @@ int api_exit (void);
int client (int argc, char *argv[]);
void service_monitor (pid_t lost);
void service_monitor (pid_t lost, int status);
const char *plugin_hook_str(hook_point_t no);
int plugin_exists (hook_point_t no);
+5 -4
View File
@@ -128,8 +128,8 @@ int serv_list(char *arg)
int serv_enable(char *arg)
{
char corr[40];
char link[80];
char path[80];
char link[256];
char path[256];
if (!arg || !arg[0])
return serv_list(NULL);
@@ -140,7 +140,8 @@ int serv_enable(char *arg)
}
pushd(FINIT_RCSD);
mkdir("enabled", 0755);
if (mkdir("enabled", 0755) && EEXIST != errno)
err(1, "Failed creating %s/enabled directory", FINIT_RCSD);
snprintf(path, sizeof(path), "%s/%s", available, arg);
if (!fexist(path))
@@ -156,7 +157,7 @@ int serv_enable(char *arg)
int serv_disable(char *arg)
{
char corr[40];
char link[80];
char link[256];
struct stat st;
if (!arg || !arg[0])
+340 -138
View File
@@ -116,16 +116,166 @@ static int service_timeout_cancel(svc_t *svc)
return err;
}
static void redirect_null(void)
/*
* Redirect stdin to /dev/null => all reads by process = EOF
* https://www.freedesktop.org/software/systemd/man/systemd.exec.html#Logging%20and%20Standard%20Input/Output
*/
static int stdin_redirect(void)
{
FILE *fp;
int fd;
fp = fopen("/dev/null", "w");
if (fp) {
dup2(fileno(fp), STDOUT_FILENO);
dup2(fileno(fp), STDERR_FILENO);
fclose(fp);
fd = open("/dev/null", O_RDONLY | O_APPEND);
if (-1 != fd) {
dup2(fd, STDIN_FILENO);
return close(fd);
}
return -1;
}
/*
* Redirect output to a file, e.g., /dev/null, or /dev/console
*/
static int fredirect(const char *file)
{
int fd;
fd = open(file, O_WRONLY | O_APPEND);
if (-1 != fd) {
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
return close(fd);
}
return -1;
}
#ifndef LOGIT_ENABLED
/*
* Fallback in case we don't even have logger on the system.
* XXX: we should parse 'prio' here to get facility.level
*/
static void fallback_logger(char *ident, char *prio)
{
int facility = LOG_DAEMON;
int level = LOG_NOTICE;
char buf[256];
openlog(ident, LOG_NOWAIT | LOG_PID, facility);
while ((fgets(buf, sizeof(buf), stdin)))
syslog(level, "%s", buf);
closelog();
}
#endif
/*
* Redirect output to syslog using the command line logit tool
*/
static int lredirect(svc_t *svc)
{
pid_t pid;
int fd;
/*
* Open PTY to connect to logger. A pty isn't buffered
* like a pipe, and it eats newlines so they aren't logged
*/
fd = posix_openpt(O_RDWR);
if (fd == -1) {
svc->log.enabled = 0;
return -1;
}
if (grantpt(fd) == -1 || unlockpt(fd) == -1) {
close(fd);
svc->log.enabled = 0;
return -1;
}
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
pid = fork();
if (pid == 0) {
int fds;
char *tag = basename(svc->cmd);
char *prio = "daemon.info";
fds = open(ptsname(fd), O_RDONLY);
close(fd);
if (fds == -1)
_exit(0);
dup2(fds, STDIN_FILENO);
/* Reset signals */
sig_unblock();
if (svc->log.file[0] == '/') {
#ifdef LOGIT_ENABLED
char sz[20], num[3];
snprintf(sz, sizeof(sz), "%d", logfile_size_max);
snprintf(num, sizeof(num), "%d", logfile_count_max);
execlp("logit", "logit", "-f", svc->log.file, "-n", sz, "-r", num, NULL);
_exit(0);
#else
logit(LOG_INFO, "logit disabled, logging %s to syslog instead", svc->name);
#endif
}
if (svc->log.ident[0])
tag = svc->log.ident;
if (svc->log.prio[0])
prio = svc->log.prio;
#ifdef LOGIT_ENABLED
execlp("logit", "logit", "-t", tag, "-p", prio, NULL);
#else
if (whichp("logger"))
execlp("logger", "logger", "-t", tag, "-p", prio, NULL);
fallback_logger(tag, prio);
#endif
_exit(0);
}
return close(fd);
}
/*
* Handle redirection of process output, if enabled
*/
static int redirect(svc_t *svc)
{
/* Redirect inetd socket to stdin for connection */
#ifdef INETD_ENABLED
if (svc_is_inetd_conn(svc)) {
dup2(svc->stdin_fd, STDIN_FILENO);
close(svc->stdin_fd);
dup2(STDIN_FILENO, STDOUT_FILENO);
dup2(STDIN_FILENO, STDERR_FILENO);
return 0;
}
#endif
stdin_redirect();
if (svc->log.enabled) {
if (svc->log.null)
return fredirect("/dev/null");
if (svc->log.console)
return fredirect(CONSOLE);
return lredirect(svc);
} else if (log_is_debug())
return fredirect(CONSOLE);
#ifdef REDIRECT_OUTPUT
else
return fredirect("/dev/null");
#endif
return 0;
}
static int is_norespawn(void)
@@ -157,7 +307,7 @@ static int service_start(svc_t *svc)
/* Don't try and start service if it doesn't exist. */
if (!whichp(svc->cmd) && !svc->inetd.cmd) {
print(1, "Service %s does not exist!", svc->cmd);
print(1, "Service %s does not exist", svc->cmd);
svc_missing(svc);
return 1;
}
@@ -166,12 +316,15 @@ static int service_start(svc_t *svc)
if (svc_is_inetd(svc))
return inetd_start(&svc->inetd);
#endif
if (svc_is_sysv(svc)) {
logit(LOG_CONSOLE | LOG_NOTICE, "Calling '%s start' ...", svc->cmd);
}
if (!svc->desc[0])
do_progress = 0;
if (do_progress) {
if (svc_is_daemon(svc))
if (svc_is_daemon(svc) || svc_is_sysv(svc))
print_desc("Starting ", svc->desc);
else
print_desc("", svc->desc);
@@ -186,7 +339,7 @@ static int service_start(svc_t *svc)
sigprocmask(SIG_BLOCK, &nmask, &omask);
pid = fork();
cgroup_service(svc->cmd, pid);
cgroup_service(svc->name, svc->id, pid);
if (pid == 0) {
int status;
@@ -224,102 +377,31 @@ static int service_start(svc_t *svc)
}
}
/* Serve copy of args to process in case it modifies them. */
for (i = 0; i < (MAX_NUM_SVC_ARGS - 1) && svc->args[i][0] != 0; i++)
args[i] = svc->args[i];
if (!svc_is_sysv(svc)) {
for (i = 0; i < (MAX_NUM_SVC_ARGS - 1) && svc->args[i][0] != 0; i++)
args[i] = svc->args[i];
} else {
i = 0;
args[i++] = svc->cmd;
args[i++] = "start";
}
args[i] = NULL;
/* Redirect inetd socket to stdin for connection */
#ifdef INETD_ENABLED
if (svc_is_inetd_conn(svc)) {
dup2(svc->stdin_fd, STDIN_FILENO);
close(svc->stdin_fd);
dup2(STDIN_FILENO, STDOUT_FILENO);
dup2(STDIN_FILENO, STDERR_FILENO);
} else
#endif
/*
* The setsid() call is the most humble of all in this
* function. It takes care to detach the process from
* its controlling terminal, preventing daemons from
* leaking to the console, and allowing us to run such
* programs like `lxc-start -F` in the foreground to
* properly monitor them.
*
* If you find yourself here wanting to fix the output
* to the console at boot, for debugging or similar,
* have a look at redirect() and log.console instead.
*/
setsid();
if (svc->log.enabled) {
int fd;
if (svc->log.null) {
redirect_null();
goto logit_done;
}
if (svc->log.console) {
goto logit_done;
}
/*
* Open PTY to connect to logger. A pty isn't buffered
* like a pipe, and it eats newlines so they aren't logged
*/
fd = posix_openpt(O_RDWR);
if (fd == -1) {
svc->log.enabled = 0;
goto logit_done;
}
if (grantpt(fd) == -1 || unlockpt(fd) == -1) {
close(fd);
svc->log.enabled = 0;
goto logit_done;
}
/* SIGCHLD is still blocked for grantpt() and fork() */
sigprocmask(SIG_BLOCK, &nmask, NULL);
pid = fork();
if (pid == 0) {
int fds;
char *tag = basename(svc->cmd);
char *prio = "daemon.info";
fds = open(ptsname(fd), O_RDONLY);
close(fd);
if (fds == -1)
_exit(0);
dup2(fds, STDIN_FILENO);
/* Reset signals */
sig_unblock();
if (svc->log.file[0] == '/') {
char sz[20], num[3];
snprintf(sz, sizeof(sz), "%d", logfile_size_max);
snprintf(num, sizeof(num), "%d", logfile_count_max);
execlp("logit", "logit", "-f", svc->log.file, "-n", sz, "-r", num, NULL);
_exit(0);
}
if (svc->log.ident[0])
tag = svc->log.ident;
if (svc->log.prio[0])
prio = svc->log.prio;
execlp("logit", "logit", "-t", tag, "-p", prio, NULL);
_exit(0);
}
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
close(fd);
} else if (log_is_debug()) {
int fd;
fd = open(CONSOLE, O_WRONLY | O_APPEND);
if (-1 != fd) {
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
close(fd);
}
}
#ifdef REDIRECT_OUTPUT
else
redirect_null();
#endif
logit_done:
redirect(svc);
sig_unblock();
if (svc->inetd.cmd)
@@ -327,7 +409,7 @@ static int service_start(svc_t *svc)
else if (svc_is_runtask(svc))
status = exec_runtask(svc->cmd, args);
else
status = execv(svc->cmd, args);
status = execvp(svc->cmd, args);
#ifdef INETD_ENABLED
if (svc_is_inetd_conn(svc)) {
@@ -338,28 +420,33 @@ static int service_start(svc_t *svc)
}
} else
#endif
if (svc->log.enabled && !svc->log.null)
waitpid(pid, NULL, 0);
_exit(status);
} else if (log_is_debug()) {
char buf[CMD_SIZE] = "";
for (i = 0; i < (MAX_NUM_SVC_ARGS - 1) && svc->args[i][0] != 0; i++) {
char arg[MAX_ARG_LEN];
char arg[MAX_ARG_LEN + 1];
snprintf(arg, sizeof(arg), "%s ", svc->args[i]);
if (strlen(arg) < (sizeof(buf) - strlen(buf)))
strcat(buf, arg);
strlcat(buf, arg, sizeof(buf));
}
_d("Starting %s: %s", svc->cmd, buf);
}
logit(LOG_CONSOLE | LOG_NOTICE, "Starting %s:%s, PID: %d",
basename(svc->cmd), svc->id, pid);
svc->pid = pid;
svc->start_time = jiffies();
switch (svc->type) {
case SVC_TYPE_RUN:
result = WEXITSTATUS(complete(svc->cmd, pid));
svc->status = complete(svc->cmd, pid);
if (WIFEXITED(svc->status) && !WEXITSTATUS(svc->status))
result = 0;
else
result = 1;
svc->start_time = svc->pid = 0;
svc->once++;
svc_set_state(svc, SVC_STOPPING_STATE);
@@ -404,10 +491,12 @@ static void service_kill(svc_t *svc)
}
_d("%s: Sending SIGKILL to pid:%d", pid_get_name(svc->pid, NULL, 0), svc->pid);
logit(LOG_CONSOLE | LOG_NOTICE, "Stopping %s:%s, PID: %d, sending SIGKILL ...",
basename(svc->cmd), svc->id, svc->pid);
if (runlevel != 1)
print_desc("Killing ", svc->desc);
kill(svc->pid, SIGKILL);
kill(-svc->pid, SIGKILL);
/* Let SIGKILLs stand out, show result as [WARN] */
if (runlevel != 1)
@@ -449,16 +538,63 @@ static int service_stop(svc_t *svc)
#endif
service_timeout_cancel(svc);
if (svc->pid <= 1)
return 1;
if (!svc_is_sysv(svc)) {
if (svc->pid <= 1)
return 1;
_d("Sending %s to pid:%d name:%s", sig_name(svc->sighalt),
svc->pid, pid_get_name(svc->pid, NULL, 0));
logit(LOG_CONSOLE | LOG_NOTICE, "Stopping %s:%s, PID: %d, sending %s ...",
basename(svc->cmd), svc->id, svc->pid, sig_name(svc->sighalt));
} else {
logit(LOG_CONSOLE | LOG_NOTICE, "Calling '%s stop' ...", svc->cmd);
}
_d("Sending SIGTERM to pid:%d name:%s", svc->pid, pid_get_name(svc->pid, NULL, 0));
svc_set_state(svc, SVC_STOPPING_STATE);
if (runlevel != 1)
print_desc("Stopping ", svc->desc);
res = kill(svc->pid, SIGTERM);
if (!svc_is_sysv(svc)) {
if (svc->pid <= 1)
goto cleanup;
res = kill(-svc->pid, svc->sighalt);
/* PID lost or forking process never really started */
if (res == -1 && ESRCH == errno) {
char *fn;
/* XXX: Same clenup as done by service_monitor(), refactor */
cleanup:
fn = pid_file(svc);
if (remove(fn) && errno != ENOENT)
logit(LOG_CRIT, "Failed removing service %s pidfile %s",
basename(svc->cmd), fn);
/* No longer running, update books. */
svc->start_time = svc->pid = 0;
}
} else {
char *args[] = { svc->cmd, "stop", NULL };
pid_t pid;
pid = fork();
switch (pid) {
case 0:
redirect(svc);
exec_runtask(svc->cmd, args);
_exit(0);
break;
case -1:
_pe("Failed fork() to call sysv script '%s stop'", svc->cmd);
res = 1;
break;
default:
res = WEXITSTATUS(complete(svc->cmd, pid));
break;
}
}
if (runlevel != 1)
print_result(res);
@@ -502,6 +638,8 @@ static int service_restart(svc_t *svc)
print_desc("Restarting ", svc->desc);
_d("Sending SIGHUP to PID %d", svc->pid);
logit(LOG_CONSOLE | LOG_NOTICE, "Restarting %s:%s, PID: %d, sending SIGHUP ...",
basename(svc->cmd), svc->id, svc->pid);
rc = kill(svc->pid, SIGHUP);
/* Declare we're waiting for svc to re-assert/touch its pidfile */
@@ -577,6 +715,32 @@ static void parse_log(svc_t *svc, char *arg)
}
}
static void parse_sighalt(svc_t *svc, char *arg)
{
int signo;
signo = sig_num(arg);
if (signo == -1)
return;
svc->sighalt = signo;
}
static void parse_killdelay(svc_t *svc, char *delay)
{
const char *errstr;
long long sec;
sec = strtonum(delay, 1, 60, &errstr);
if (errstr) {
_e("%s: killdelay %s is %s (1-60)", svc->cmd, delay, errstr);
return;
}
/* convert to msec */
svc->killdelay = (int)(sec * 1000);
}
/*
* name:<name>
*/
@@ -609,13 +773,17 @@ static void parse_cmdline_args(svc_t *svc, char *cmd)
strlcpy(svc->args[0], cmd, sizeof(svc->args[0]));
/* Copy supplied args. Stop at MAX_NUM_SVC_ARGS-1 to allow the args
* array to be zero-terminated. */
for (i=1; (arg = strtok(NULL, " ")) && i < (MAX_NUM_SVC_ARGS-1); i++)
/*
* Copy supplied args. Stop at MAX_NUM_SVC_ARGS-1 to allow the args
* array to be zero-terminated.
*/
for (i = 1; (arg = strtok(NULL, " ")) && i < (MAX_NUM_SVC_ARGS - 1); i++)
strlcpy(svc->args[i], arg, sizeof(svc->args[0]));
/* clear remaining args in case they were set earlier.
* This also zero-terminates the args array.*/
/*
* Clear remaining args in case they were set earlier.
* This also zero-terminates the args array.
*/
for (; i < MAX_NUM_SVC_ARGS; i++)
svc->args[i][0] = 0;
}
@@ -659,7 +827,8 @@ static void parse_cmdline_args(svc_t *svc, char *cmd)
*
* Service conditions can be: svc/<PATH> for PID files, net/<IFNAME>/up
* and net/<IFNAME>/exists. The condition handling is further described
* docs/conditions.md.
* in doc/conditions.md, but worth mentioning here is that the condition
* name itself can be modified using the :ID and name:foo syntax.
*
* For multiple instances of the same command, e.g. multiple DHCP
* clients, the user must enter an ID, using the :ID syntax.
@@ -675,8 +844,8 @@ static void parse_cmdline_args(svc_t *svc, char *cmd)
*/
int service_register(int type, char *cfg, struct rlimit rlimit[], char *file)
{
char id_str[MAX_ID_LEN];
#ifdef INETD_ENABLED
char id_str[MAX_ID_LEN];
int forking = 0;
#endif
int levels = 0;
@@ -686,7 +855,7 @@ int service_register(int type, char *cfg, struct rlimit rlimit[], char *file)
char *username = NULL, *log = NULL, *pid = NULL;
char *service = NULL, *proto = NULL, *ifaces = NULL;
char *cmd, *desc, *runlevels = NULL, *cond = NULL;
char *name = NULL;
char *name = NULL, *halt = NULL, *delay = NULL;
svc_t *svc;
plugin_t *plugin = NULL;
@@ -748,6 +917,10 @@ int service_register(int type, char *cfg, struct rlimit rlimit[], char *file)
name = cmd;
else if (!strncasecmp(cmd, "manual:yes", 10))
manual = 1;
else if (!strncasecmp(cmd, "halt:", 5))
halt = &cmd[5];
else if (!strncasecmp(cmd, "kill:", 5))
delay = &cmd[5];
else if (cmd[0] != '/' && strchr(cmd, '/'))
service = cmd; /* inetd service/proto */
else
@@ -805,20 +978,18 @@ int service_register(int type, char *cfg, struct rlimit rlimit[], char *file)
parse_cmdline_args(svc, cmd);
goto inetd_setup;
}
if (!id) {
int n = svc_next_id_int(cmd);
if (n) {
snprintf(id_str, sizeof(id_str), "%d", n);
id = id_str;
}
/* inetd services need a unique ID, so we must always set one. */
if (!id) {
snprintf(id_str, sizeof(id_str), "%d", svc_next_id_int(cmd));
id = id_str;
}
}
recreate:
#endif
if (!id)
id = "1";
id = "";
svc = svc_find(cmd, id);
if (!svc) {
@@ -874,7 +1045,10 @@ recreate:
conf_parse_cond(svc, cond);
parse_name(svc, name);
if (halt)
parse_sighalt(svc, halt);
if (delay)
parse_killdelay(svc, delay);
if (log)
parse_log(svc, log);
if (desc)
@@ -969,7 +1143,7 @@ void service_unregister(svc_t *svc)
svc_del(svc);
}
void service_monitor(pid_t lost)
void service_monitor(pid_t lost, int status)
{
svc_t *svc;
@@ -985,7 +1159,13 @@ void service_monitor(pid_t lost)
return;
}
_d("collected %s(%d)", svc->cmd, lost);
_d("collected %s(%d), normal exit: %d, signaled: %d, exit code: %d",
svc->cmd, lost, WIFEXITED(status), WIFSIGNALED(status), WEXITSTATUS(status));
svc->status = status;
/* Forking sysv/services declare themselves with pid:!/path/to/pid.file */
if (svc_is_starting(svc) && svc_is_forking(svc))
return;
/* Try removing PID file (in case service does not clean up after itself) */
if (svc_is_daemon(svc)) {
@@ -994,8 +1174,16 @@ void service_monitor(pid_t lost)
fn = pid_file(svc);
if (remove(fn) && errno != ENOENT)
logit(LOG_CRIT, "Failed removing service %s pidfile %s", basename(svc->cmd), fn);
} else if (svc_is_runtask(svc)) {
if (WIFEXITED(status) && !WEXITSTATUS(status))
svc->started = 1;
else
svc->started = 0;
}
/* Terminate any children in the same proess group, e.g. logit */
kill(-svc->pid, SIGTERM);
/* No longer running, update books. */
svc->start_time = svc->pid = 0;
@@ -1023,7 +1211,8 @@ static void service_retry(svc_t *svc)
}
if (*restart_cnt >= RESPAWN_MAX) {
logit(LOG_ERR, "%s keeps crashing, not restarting", svc->cmd);
logit(LOG_CONSOLE | LOG_WARNING, "Service %s:%s keeps crashing, not restarting.",
basename(svc->cmd), svc->id);
svc_crashing(svc);
*restart_cnt = 0;
service_step(svc);
@@ -1033,6 +1222,8 @@ static void service_retry(svc_t *svc)
(*restart_cnt)++;
_d("%s crashed, trying to start it again, attempt %d", svc->cmd, *restart_cnt);
logit(LOG_CONSOLE | LOG_WARNING, "Service %s:%s died, restarting (%d/%d)",
basename(svc->cmd), svc->id, *restart_cnt, RESPAWN_MAX);
svc_unblock(svc);
service_step(svc);
@@ -1049,8 +1240,10 @@ static void svc_set_state(svc_t *svc, svc_state_t new)
/* if PID isn't collected within SVC_TERM_TIMEOUT msec, kill it! */
if ((*state == SVC_STOPPING_STATE) && !svc_is_inetd(svc)) {
_d("%s is stopping, wait %d sec before sending SIGKILL ...",
svc->cmd, svc->killdelay / 1000);
service_timeout_cancel(svc);
service_timeout_after(svc, SVC_TERM_TIMEOUT, service_kill);
service_timeout_after(svc, svc->killdelay, service_kill);
}
}
@@ -1096,6 +1289,7 @@ restart:
case SVC_STOPPING_STATE:
if (!svc->pid) {
/* PID was collected normally, no need to kill it */
_d("%s: Stopped normally, no need to send SIGKILL :)", svc->cmd);
service_timeout_cancel(svc);
switch (svc->type) {
@@ -1107,6 +1301,7 @@ restart:
case SVC_TYPE_INETD_CONN:
case SVC_TYPE_TASK:
case SVC_TYPE_RUN:
case SVC_TYPE_SYSV:
svc_set_state(svc, SVC_DONE_STATE);
break;
@@ -1165,7 +1360,12 @@ restart:
}
if (svc_is_runtask(svc)) {
svc_set_state(svc, SVC_STOPPING_STATE);
if (svc_is_sysv(svc)) {
if (!svc->started)
svc_set_state(svc, SVC_STOPPING_STATE);
} else {
svc_set_state(svc, SVC_STOPPING_STATE);
}
svc->once++;
break;
}
@@ -1223,14 +1423,16 @@ restart:
svc_set_state(svc, SVC_RUNNING_STATE);
/* Reassert condition if we go from waiting and no change */
if (!svc_is_changed(svc)) {
char cond[MAX_COND_LEN];
char name[MAX_COND_LEN];
mkcond(cond, sizeof(cond), svc->cmd);
cond_set_path(cond_path(cond), COND_ON);
mkcond(svc, name, sizeof(name));
_d("Reassert condition %s", name);
cond_set_path(cond_path(name), COND_ON);
}
break;
case COND_OFF:
_d("Condition for %s is off, sending SIGCONT + SIGTERM", svc->name);
kill(svc->pid, SIGCONT);
service_stop(svc);
break;
+84 -2
View File
@@ -98,6 +98,55 @@ static uev_t sighup_watcher, sigint_watcher, sigpwr_watcher;
static uev_t sigchld_watcher;
static uev_t sigstop_watcher, sigtstp_watcher, sigcont_watcher;
static struct sigmap {
int num;
char *name;
} signames[] = {
/* ISO C99 signals. */
{ SIGINT, "SIGINT" },
{ SIGILL, "SIGILL" },
{ SIGABRT, "SIGABRT" },
{ SIGFPE, "SIGFPE" },
{ SIGSEGV, "SIGSEGV" },
{ SIGTERM, "SIGTERM" },
/* Historical signals specified by POSIX. */
{ SIGHUP, "SIGHUP" },
{ SIGQUIT, "SIGQUIT" },
{ SIGTRAP, "SIGTRAP" },
{ SIGKILL, "SIGKILL" },
{ SIGBUS, "SIGBUS" },
{ SIGSYS, "SIGSYS" },
{ SIGPIPE, "SIGPIPE" },
{ SIGALRM, "SIGALRM" },
/* New(er) POSIX signals (1003.1-2008, 1003.1-2013). */
{ SIGURG, "SIGURG" },
{ SIGSTOP, "SIGSTOP" },
{ SIGTSTP, "SIGTSTP" },
{ SIGCONT, "SIGCONT" },
{ SIGCHLD, "SIGCHLD" },
{ SIGTTIN, "SIGTTIN" },
{ SIGTTOU, "SIGTTOU" },
{ SIGPOLL, "SIGPOLL" },
{ SIGXCPU, "SIGXCPU" },
{ SIGXFSZ, "SIGXFSZ" },
{ SIGVTALRM, "SIGVTALRM" },
{ SIGPROF, "SIGPROF" },
{ SIGUSR1, "SIGUSR1" },
{ SIGUSR2, "SIGUSR2" },
/* Nonstandard signals found in all modern POSIX systems
(including both BSD and Linux). */
{ SIGWINCH, "SIGWINCH" },
{ SIGSTKFLT, "SIGSTKFLT" },
{ SIGPWR, "SIGPWR" },
/* Archaic names for compatibility. */
{ SIGIO, "SIGIO" },
{ SIGIOT, "SIGIOT" },
{ SIGCLD, "SIGCLD" },
};
void mdadm_wait(void);
void unmount_tmpfs(void);
void unmount_regular(void);
@@ -316,6 +365,7 @@ static void sigterm_cb(uev_t *w, void *arg, int events)
static void sigchld_cb(uev_t *w, void *arg, int events)
{
pid_t pid;
int status;
if (UEV_ERROR == events) {
_e("Unrecoverable error in signal watcher");
@@ -324,10 +374,10 @@ static void sigchld_cb(uev_t *w, void *arg, int events)
/* Reap all the children! */
do {
pid = waitpid(-1, NULL, WNOHANG);
pid = waitpid(-1, &status, WNOHANG);
if (pid > 0) {
_d("Collected child %d", pid);
service_monitor(pid);
service_monitor(pid, status);
}
} while (pid > 0);
}
@@ -368,6 +418,38 @@ int sig_stopped(void)
return stopped;
}
/*
* Convert SIGFOO to a number, if it exists
*/
int sig_num(const char *name)
{
size_t i, offset = 0;
if (strncasecmp(name, "SIG", 3))
offset = 3;
for (i = 0; i < NELEMS(signames); i++) {
if (strcasecmp(name, &signames[i].name[offset]))
continue;
return signames[i].num;
}
return -1;
}
const char *sig_name(int signo)
{
size_t i;
for (i = 0; i < NELEMS(signames); i++) {
if (signames[i].num == signo)
return signames[i].name;
}
return "SIGUNKOWN";
}
/*
* Inital signal setup - ignore everything but SIGCHLD until we're capable of responding
*/
+3
View File
@@ -70,10 +70,13 @@ extern shutop_t halt;
void do_shutdown (shutop_t op);
int sig_stopped (void);
int sig_num (const char *name);
void sig_init (void);
void sig_unblock (void);
void sig_setup (uev_ctx_t *ctx);
const char *sig_name(int signo);
#endif /* FINIT_SIG_H_ */
/**
+2 -1
View File
@@ -117,7 +117,7 @@ restart:
switch (sm->state) {
case SM_BOOTSTRAP_STATE:
_d("Bootstrapping all services in runlevel S from %s", FINIT_CONF);
service_step_all(SVC_TYPE_RUN | SVC_TYPE_TASK | SVC_TYPE_SERVICE);
service_step_all(SVC_TYPE_RUNTASK | SVC_TYPE_SERVICE);
sm->state = SM_RUNNING_STATE;
break;
@@ -150,6 +150,7 @@ restart:
}
_d("Setting new runlevel --> %d <-- previous %d", runlevel, prevlevel);
logit(LOG_CONSOLE | LOG_NOTICE, "%s, entering runlevel %d", INIT_HEADING, runlevel);
runlevel_set(prevlevel, runlevel);
/* Disable login in single-user mode as well as shutdown/reboot */
+10 -3
View File
@@ -27,6 +27,7 @@
#include <sys/ttydefaults.h> /* Not included by default in musl libc */
#include <termios.h>
/* B0 means; keep kernel default */
speed_t stty_parse_speed(char *baud)
{
char *ptr;
@@ -66,6 +67,9 @@ speed_t stty_parse_speed(char *baud)
{ 4000000, B4000000 },
};
if (!baud || !baud[0])
return B0;
errno = 0;
val = strtoul(baud, &ptr, 10);
if (errno || ptr == baud)
@@ -95,7 +99,7 @@ void stty(int fd, speed_t speed)
tcflush(fd, TCIOFLUSH);
/* Disable modem specific flags */
term.c_cflag &= ~(0|CSTOPB|PARENB|PARODD);
term.c_cflag &= ~(0|CSTOPB|PARENB|PARODD|CBAUDEX);
term.c_cflag &= ~CRTSCTS;
term.c_cflag |= CLOCAL;
@@ -104,7 +108,7 @@ void stty(int fd, speed_t speed)
term.c_cc[VMIN] = 1;
term.c_iflag = ICRNL|IXON|IXOFF;
term.c_oflag = OPOST|ONLCR;
term.c_cflag |= CS8|CREAD|HUPCL|CBAUDEX;
term.c_cflag |= CS8|CREAD|HUPCL;
term.c_lflag |= ICANON|ISIG|ECHO|ECHOE|ECHOK|ECHOKE;
/* Reset special characters to defaults */
@@ -116,8 +120,11 @@ void stty(int fd, speed_t speed)
term.c_cc[VERASE] = CERASE;
tcsetattr(fd, TCSANOW, &term);
/* Restore cursor if it was hidden previously */
/* Show cursor again, if it was hidden previously */
write(fd, "\033[?25h", 6);
/* Enable line wrap, if disabled previously */
write(fd, "\033[7h", 4);
}
/**
+99 -20
View File
@@ -25,6 +25,7 @@
#include <err.h>
#include <ctype.h> /* isdigit() */
#include <time.h>
#include <signal.h>
#include <stdlib.h>
#include <strings.h>
#include <sys/time.h>
@@ -60,7 +61,8 @@ static void svc_gc(void *arg)
continue;
TAILQ_REMOVE(&gc_list, svc, link);
cond_clear(mkcond(cond, sizeof(cond), svc->cmd));
_d("Cleaning out %s, clearing any conditions ...", svc->name);
cond_clear(mkcond(svc, cond, sizeof(cond)));
free(svc);
}
@@ -98,12 +100,19 @@ svc_t *svc_new(char *cmd, char *id, int type)
svc->type = type;
svc->job = job;
strlcpy(svc->id, id, sizeof(svc->id));
if (id && id[0])
strlcpy(svc->id, id, sizeof(svc->id));
strlcpy(svc->cmd, cmd, sizeof(svc->cmd));
/* Default description, if missing */
strlcpy(svc->desc, svc->name, sizeof(svc->desc));
/* Default HALT signal to send */
svc->sighalt = SIGTERM;
/* Default delay between SIGTERM and SIGKILL */
svc->killdelay = SVC_TERM_TIMEOUT;
TAILQ_INSERT_TAIL(&svc_list, svc, link);
return svc;
@@ -300,7 +309,7 @@ svc_t *svc_find(char *cmd, char *id)
svc_t *svc, *iter = NULL;
for (svc = svc_iterator(&iter, 1); svc; svc = svc_iterator(&iter, 0)) {
if (svc->id && !strcmp(svc->id, id) && !strncmp(svc->cmd, cmd, strlen(svc->cmd)))
if (!strcmp(svc->cmd, cmd) && !strcmp(svc->id, id))
return svc;
}
@@ -339,7 +348,7 @@ svc_t *svc_find_by_jobid(int job, char *id)
svc_t *svc, *iter = NULL;
for (svc = svc_iterator(&iter, 1); svc; svc = svc_iterator(&iter, 0)) {
if (svc->job == job && svc->id && !strcmp(svc->id, id))
if (svc->job == job && !strcmp(svc->id, id))
return svc;
}
@@ -359,7 +368,7 @@ svc_t *svc_find_by_nameid(char *name, char *id)
svc_t *svc, *iter = NULL;
for (svc = svc_iterator(&iter, 1); svc; svc = svc_iterator(&iter, 0)) {
if (svc->id && !strcmp(svc->id, id) && !strcmp(name, svc->name))
if (!strcmp(svc->id, id) && !strcmp(name, svc->name))
return svc;
}
@@ -370,18 +379,49 @@ svc_t *svc_find_by_nameid(char *name, char *id)
* svc_find_by_plidfile - Find an service object by its PID file
* @fn: PID file, can be absolute path or relative to /run
*
* This function is primarily used by the pidfile plugin to track the
* conditions and dependencies of services.
*
* Note, the PID file is assumed to exist so the contents can be
* compared to the the PID of a located service. There may be several
* services, in many runlevels, that use the same name for the PID file.
* So we won't know for sure until the PID is compared.
*
* Returns:
* A pointer to an &svc_t object, or %NULL if not found.
*/
svc_t *svc_find_by_pidfile(char *fn)
{
svc_t *svc, *iter = NULL;
char adjpath[strlen(fn) + 10]; /* + sizeof("/var/run/") */
char fnpath[PATH_MAX];
pid_runpath(fn, adjpath, sizeof(adjpath));
if (!realpath(adjpath, fnpath)) {
_pe("adjpath: %s, errno %d", adjpath, errno);
return NULL;
}
for (svc = svc_iterator(&iter, 1); svc; svc = svc_iterator(&iter, 0)) {
char path[MAX_ARG_LEN];
char path[PATH_MAX];
char *pidfn;
pid_t pid;
if (string_compare(pid_runpath(fn, path, sizeof(path)), pid_file(svc)))
return svc;
pidfn = pid_file(svc);
if (!pidfn || !realpath(pidfn, path)) {
if (errno != ENOENT)
_pe("pidfn: %s, errno %d", pidfn ?: "<NULL>", errno);
continue;
}
if (!string_compare(fnpath, path))
continue;
pid = pid_file_read(path);
if (svc->pid != pid)
continue;
return svc;
}
return NULL;
@@ -496,7 +536,10 @@ int svc_enabled(svc_t *svc)
return 1;
}
/* Same base service, return unique ID as an integer */
/*
* Same base service, return unique ID as an integer
* Note: intended for use with INETD services.
*/
int svc_next_id_int(char *cmd)
{
int n = 1;
@@ -507,13 +550,13 @@ int svc_next_id_int(char *cmd)
snprintf(id, sizeof(id), "%d", n);
if (!strcmp(svc->cmd, cmd) && svc->id && strcmp(svc->id, id))
if (!strcmp(svc->cmd, cmd) && strcmp(svc->id, id))
return n;
n++;
}
return 0;
return 1;
}
int svc_is_unique(svc_t *svc)
@@ -537,23 +580,58 @@ int svc_is_unique(svc_t *svc)
return unique;
}
/* break up "job:id job:id job:id ..." into several "job:id" tokens */
static char *tokstr(char *str, size_t len)
{
static char *cur = NULL;
static size_t pos = 0;
char *token;
if (!cur && !str)
return NULL;
if (str) {
cur = str;
pos = 0;
}
if (pos >= len)
return NULL;
token = &cur[pos];
while (pos < len) {
if (isspace(cur[pos])) {
cur[pos++] = 0;
break;
}
pos++;
}
return token;
}
/*
* Used by api.c (to start/stop/restart) and initctl.c (for input validation)
*/
int svc_parse_jobstr(char *str, size_t len, int (*found)(svc_t *), int (not_found)(char *, char *))
{
char *input, *token;
int result = 0;
char *input, *token, *pos;
input = sanitize(str, len);
if (!input)
return -1;
token = strtok_r(input, " ", &pos);
while (token) {
_d("Got str:'%s'", str);
input = tokstr(str, len);
while (input) {
char *id = NULL;
svc_t *svc, *iter = NULL;
char *ptr = strchr(token, ':');
char *ptr;
_d("Got token:'%s'", input);
token = sanitize(input, len);
if (!token) {
_d("Sanitation of token:'%s' failed", input);
goto next;
}
ptr = strchr(token, ':');
if (isdigit(token[0])) {
char *ep;
@@ -611,7 +689,8 @@ int svc_parse_jobstr(char *str, size_t len, int (*found)(svc_t *), int (not_foun
}
}
token = strtok_r(NULL, " ", &pos);
next:
input = tokstr(NULL, len);
}
return result;
+12 -5
View File
@@ -43,10 +43,11 @@ typedef enum {
SVC_TYPE_RUN = 4, /* Like task, but wait for completion */
SVC_TYPE_INETD = 8, /* Classic inetd service */
SVC_TYPE_INETD_CONN = 16, /* Single inetd connection */
SVC_TYPE_SYSV = 32, /* SysV style init.d script w/ start/stop */
} svc_type_t;
#define SVC_TYPE_ANY (-1)
#define SVC_TYPE_RUNTASK (6)
#define SVC_TYPE_RUNTASK (SVC_TYPE_RUN | SVC_TYPE_TASK | SVC_TYPE_SYSV)
typedef enum {
SVC_HALTED_STATE = 0, /* Not allowed in runlevel, or not enabled. */
@@ -72,9 +73,9 @@ typedef enum {
#define MAX_COND_LEN (MAX_ARG_LEN * 3)
#define MAX_USER_LEN 16
#define MAX_NUM_FDS 64 /* Max number of I/O plugins */
#define MAX_NUM_SVC_ARGS 32
#define MAX_NUM_SVC_ARGS 64
/* Time after SIGTERM that we SIGKILL stopping processes */
/* Default kill delay (msec) after SIGTERM (svc->sighalt) that we SIGKILL processes */
#define SVC_TERM_TIMEOUT 3000
/*
@@ -94,9 +95,13 @@ typedef struct svc {
struct rlimit rlimit[RLIMIT_NLIMITS];
/* Service details */
pid_t pid;
char pidfile[MAX_ARG_LEN];
int sighalt; /* Signal to stop prorcess, default: SIGTERM */
int killdelay; /* Delay in msec before sending SIGKILL */
pid_t pid;
char pidfile[256];
long start_time; /* Start time, as seconds since boot, from sysinfo() */
int started; /* Set for run/task/sysv to track if started */
int status; /* From waitpid() when process is collected */
const svc_state_t state; /* Paused, Reloading, Restart, Running, ... */
svc_type_t type; /* Service, run, task, inetd, ... */
int protect; /* Services like dbus-daemon & udev by Finit */
@@ -182,7 +187,9 @@ int svc_parse_jobstr (char *str, size_t len, int (*found)(svc_t *)
static inline int svc_is_inetd (svc_t *svc) { return svc && SVC_TYPE_INETD == svc->type; }
static inline int svc_is_inetd_conn(svc_t *svc) { return svc && SVC_TYPE_INETD_CONN == svc->type; }
static inline int svc_is_daemon (svc_t *svc) { return svc && SVC_TYPE_SERVICE == svc->type; }
static inline int svc_is_sysv (svc_t *svc) { return svc && SVC_TYPE_SYSV == svc->type; }
static inline int svc_is_runtask (svc_t *svc) { return svc && (SVC_TYPE_RUNTASK & svc->type); }
static inline int svc_is_forking (svc_t *svc) { return (svc_is_daemon(svc) || svc_is_sysv(svc)) && svc->pidfile[0] == '!'; }
static inline int svc_in_runlevel (svc_t *svc, int runlevel) { return svc && ISSET(svc->runlevels, runlevel); }
static inline int svc_has_sighup (svc_t *svc) { return svc && 0 != svc->sighup; }
+32 -27
View File
@@ -153,25 +153,29 @@ int tty_register(char *line, struct rlimit rlimit[], char *file)
/* Iterate over all args */
for (i = 0; i < num; i++) {
/* First, figure out if built-in or external */
if (!dev && !cmd) {
/*
* First, figure out if built-in or external getty
* tty [12345] /dev/ttyAMA0 115200 noclear vt220 # built-in
* tty [12345] /sbin/getty -L 115200 @console vt100 noclear # external
*/
if ((!cmd && !dev) || (cmd && !dev)) {
if (args[i][0] == '[')
runlevels = line;
if (!strcmp(args[i], "@console"))
if (!strcmp(args[i], "@console") || !strcmp(args[i], "console"))
dev = args[i];
if (!strncmp(args[i], "/dev", 4))
dev = args[i];
if (!strncmp(args[i], "tty", 3))
dev = args[i];
if (!access(args[i], X_OK))
cmd = strdup(args[i]);
cmd = args[i];
/* The first arg must be one of the above */
continue;
}
/* Built-in getty args */
if (dev) {
if (!cmd && dev) {
if (isdigit(args[i][0])) {
baud = args[i];
continue;
@@ -184,28 +188,16 @@ int tty_register(char *line, struct rlimit rlimit[], char *file)
if (i + 1 == num)
term = args[i];
}
/* External getty, figure out the device */
if (cmd) {
if (!strncmp(args[i], "/dev", 4))
dev = args[i];
if (!strncmp(args[i], "tty", 3))
dev = args[i];
}
}
if (!dev) {
error:
_e("Incomplete or non-existing TTY device given, cannot register.");
if (cmd)
free(cmd);
return errno = EINVAL;
}
/* Auto-detect serial console, for embedded devices mostly */
if (!strcmp(dev, "@console")) {
if (!strcmp(dev, "@console") || !strcmp(dev, "console")) {
FILE *fp;
fp = fopen("/sys/class/tty/console/active", "r");
@@ -226,18 +218,24 @@ again:
dev = canonicalize(dev);
if (!dev)
goto error;
dev = strdup(dev);
entry = tty_find(dev);
if (!entry) {
insert = 1;
entry = calloc(1, sizeof(*entry));
if (!entry) {
free(dev);
if (cmd)
free(cmd);
if (!entry)
return errno = ENOMEM;
insert = 1;
} else {
if (entry->cmd) {
free(entry->cmd);
entry->cmd = NULL;
for (i = 0; i < TTY_MAX_ARGS; i++) {
if (entry->args[i])
free(entry->args[i]);
entry->args[i] = NULL;
}
}
insert = 0;
}
strlcpy(entry->name, dev, sizeof(entry->name));
@@ -257,11 +255,18 @@ again:
tok = cmd;
else
tok++;
entry->cmd = cmd;
entry->cmd = strdup(cmd);
args[1] = strdup(tok);
for (i = 1; i < num; i++)
entry->args[j++] = strdup(args[i]);
for (i = 1; i < num; i++) {
char *arg = args[i];
/* Replace @console with actual device */
if (arg && (!strcmp(arg, "@console") || !strcmp(arg, "console")))
arg = dev;
if (arg)
entry->args[j++] = strdup(arg);
}
entry->args[++j] = NULL;
}
+24 -18
View File
@@ -24,9 +24,11 @@
#include "config.h"
#include <ctype.h> /* isprint() */
#include <errno.h>
#include <regex.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <sys/sysinfo.h> /* sysinfo() */
#include <lite/lite.h> /* strlcat() */
@@ -104,7 +106,11 @@ int strtobytes(char *arg)
void do_sleep(unsigned int sec)
{
while ((sec = sleep(sec)))
struct timespec requested_sleep = {
.tv_sec = sec,
.tv_nsec = 0,
};
while (nanosleep(&requested_sleep, &requested_sleep))
;
}
@@ -159,29 +165,29 @@ char *uptime(long secs, char *buf, size_t len)
return buf;
}
/* Allowed characters in job/id/name */
static int isallowed(int ch)
{
return isprint(ch);
}
/* Sanitize user input, make sure to NUL terminate. */
/*
* Verify string argument is NUL terminated
* Verify string is a JOB[:ID], JOB and ID
* can both be string or number, or combo.
*/
char *sanitize(char *arg, size_t len)
{
size_t i = 0;
const char *regex = "[a-z0-9_]+[:]?[a-z0-9_]*";
regex_t preg;
int rc;
while (isallowed(arg[i]) && i < len)
i++;
if (strlen(arg) > len)
return NULL;
if (i + 1 < len) {
arg[i + 1] = 0;
return arg;
}
if (regcomp(&preg, regex, REG_ICASE | REG_EXTENDED))
return NULL;
if (i > 0 && arg[i] == 0)
return arg;
rc = regexec(&preg, arg, 0, NULL, 0);
regfree(&preg);
if (rc)
return NULL;
return NULL;
return arg;
}
/*
+6
View File
@@ -52,6 +52,12 @@ void screen_init (void);
void screen_exit (void);
int screen_width (void);
static inline char *strterm(char *str, size_t len)
{
str[len - 1] = 0;
return str;
}
#endif /* FINIT_UTIL_H_ */
/**