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Commit Graph

3218 Commits

Author SHA1 Message Date
Michal Schmidt
f60c2665f9 unit: fix false positive in check for unneeded unit
A freshly started unit A was immediately considered unneeded just because
unit B, which Requires A, was starting later in the transaction.
Fix it by looking not only at the state of B, but also at its pending job.

Also fix a copied&pasted comment.
2011-12-09 15:24:04 +01:00
Michal Schmidt
714d943f72 path: add missing pieces for PathModified
PATH_MODIFIED worked internally for PID files detection, but was unusable
in units.
2011-12-08 18:45:38 +01:00
Tim Waugh
7e115808a9 '@' is an 'ampersat' not an 'ampersand'; let's call it 'at symbol' 2011-12-08 17:32:09 +01:00
Michal Schmidt
f7b9e331ed systemctl: print 'error' load state in red
Be consistent in coloring of load states in list-units and status.
Print only 'error' in red.
There are no 'banned' or 'failed' states. Do not color 'masked', it's
not an error.
2011-12-06 01:30:16 +01:00
Michal Schmidt
9a46fc3b90 unit: garbage collect units with load error
Units that failed to load were never cleaned up. It was possible to
reach the 128K limit of units by attempting to load a bunch of nonsense.

Bug observed by Reartes Guillermo in
https://bugzilla.redhat.com/show_bug.cgi?id=680122
2011-12-06 00:52:37 +01:00
Bill Nottingham
d380a3bcd1 Allow 'list-unit-files' to run with --root.
To do so, move the check for the bus to the bus-using portion of
list_unit_files(), and ensure that get_config_path doesn't abort when
checking the runtime path with --root.
2011-12-05 22:04:42 +01:00
Michal Schmidt
2096e009a7 service: stop the service if ExecStartPost ends with a failure
The handling of failures in ExecStartPost is inconsistent. If the
command times out, the service is stopped. But if the command exits
with a failure, the service keeps running.

It makes more sense to stop the service when ExecStartPost fails.
If this behaviour is not desired, the ExecStartPost command can be
prefixed with "-".
2011-12-03 23:10:12 +01:00
Michal Schmidt
3a11183858 service: handle services with racy daemonization gracefully
There are a lot of forking daemons that do not exactly follow the
initialization steps as described in daemon(7). It is common that they
do not bother waiting in the parent process for the child to write the
PID file before exiting. The daemons' developers often do not perceive
this as a bug and they're unwilling to change.

Currently systemd warns about the missing PID file and falls back to
guessing the main PID. Being not quite deterministic, the guess can be
wrong with bad consequences. If the guessing is disabled, determinism is
achieved at the cost of losing the ability of noticing when the main
process of the service dies.

As long as it does not negatively affect properly written services,
systemd should strive for compatibility even with services with racy
daemonization. It is possible to provide determinism _and_ main process
supervision to them.

If the PID file is not there, rather than guessing and considering the
service running immediately after getting the SIGCHLD from the ExecStart
(or ExecStartPost) process, we can keep the service in the activating
state for a bit longer. We can use inotify to wait for the PID file to
appear. Only when it finally does appear and we read a valid PID from
it, we'll move the service to the running state. If the PID file never
appears, the usual timeout kicks in and the service fails.
2011-12-03 21:50:27 +01:00
Michal Schmidt
e92238567b path: add PathModified (= PathChanged + IN_MODIFY) 2011-12-03 13:58:21 +01:00
Michal Schmidt
4b562198c7 path: refactor PathSpec usage
path_*() functions operate on "Path *p" and they do not touch PathSpec
internals directly.

pathspec_*() functions operate on "PathSpec *s". The PathSpec class will
be useful outside of path.c.
2011-12-03 13:43:58 +01:00
Michal Schmidt
768147d13d path: use %m instead of strerror(errno)
and strerror(-errno) was just wrong.
2011-12-03 02:08:52 +01:00
Michal Schmidt
35d50f55f3 util: fix error checking after fgets()
fgets() does not set errno on EOF.
2011-12-03 02:08:52 +01:00
Michal Schmidt
91b684c730 rc-local: order after network.target
As suggested by Bill Nottingham: rc.local is often used for frobbing the
network.

https://bugzilla.redhat.com/show_bug.cgi?id=754789
2011-12-02 11:32:52 +01:00
Michal Schmidt
e951701a4d rc-local: no need to check if the script is executable
rc-local.service is pulled in by a generator only if the script is
executable. No need to check again.
2011-12-02 11:32:04 +01:00
Michal Schmidt
1567308317 add a generator to pull rc-local.service in
rc-local.service acts as an ordering barrier even if its condition is
false, because conditions are evaluated when the service is about to be
started.

To avoid the ordering barrier in a legacy-free system, add a generator
to pull rc-local.service into the transaction only if the script is
executable.

If/when we rewrite SysV compatibility into a generator, this one can become
a part of it.
2011-12-02 11:29:48 +01:00
Michal Schmidt
42e87475cf man: document the PassCred option 2011-11-30 11:06:35 +01:00
Michal Schmidt
1a2801529e syslog: use PassCred=yes for the /dev/log socket
Both kmsg-syslogd and the real syslog service want to receive
SCM_CREDENTIALS. With socket activation it is too late to set
SO_PASSCRED in the services.
2011-11-30 11:00:28 +01:00
Michal Schmidt
75d3fc60f8 shutdownd: use PassCred=yes in the socket unit
Since Linux 3.2 in order to receive SCM_CREDENTIALS it is not sufficient
to set SO_PASSCRED just before recvmsg(). The option has to be already
set when the sender sends the message.

With socket activation it is too late to set the option in the service.
It must be set on the socket right from the start.

See the kernel commit:
16e57262 af_unix: dont send SCM_CREDENTIALS by default

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=757628
2011-11-30 10:12:59 +01:00
Michal Schmidt
d68af58657 socket: add option for SO_PASSCRED
Add an option to enable SO_PASSCRED for unix sockets.
2011-11-30 09:52:34 +01:00
Michal Schmidt
f6cebb3bd5 let mount and swap units log to the configured defaults
Related-to: https://bugzilla.redhat.com/show_bug.cgi?id=750032
2011-11-19 03:16:55 +01:00
Michal Schmidt
1a4459d633 pam-module: treat "cron" in PAM_TTY as empty tty
cron sets PAM_TTY to "cron" and it has been doing it for a long time.
It cannot be changed because user configurations may depend on it.

https://bugzilla.redhat.com/show_bug.cgi?id=727315
2011-11-19 01:17:53 +01:00
Michal Schmidt
1dc9953709 pam-module: use the correct session type "unspecified"
logind does not understand "other".
2011-11-19 01:14:11 +01:00
Michal Schmidt
4c2630ebf2 execute: log errors from "sd(EXEC)"
To give the administrator more hints about failures occuring in spawning
of commands than just the exit code, log the strerror.
All fds are closed, so reopen the log.

Related-to: https://bugzilla.redhat.com/show_bug.cgi?id=752901
2011-11-17 01:36:11 +01:00
Michal Schmidt
9ba353983a execute: make setup_pam() return -errno when possible
The only caller currently checks if the result is non-zero,
so nothing changes there.
2011-11-17 00:16:22 +01:00
Michal Schmidt
4d8a7798e7 execute: avoid logging to closed fds
Several functions called from the "sd(EXEC)" process try to log messages
when all the file descriptors are already closed, including the logging
ones. The logging functions do not expect their fds to be closed and
they hit an assertion failure. The failure wants to be logged too,
so there is an infinite recursion, ended by a SIGSEGV.

When we close all fds, we must let log.c know about it.
2011-11-16 23:52:10 +01:00
Thomas Jarosch
085c98af4e Fix same expression on both sides of '&&'
The code should probably look like the statements above it.
Please verify, I just detected it using cppcheck.

Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
2011-11-14 18:08:27 +01:00
Michal Schmidt
9f84624270 man: fix typo in sd_notify
Noticed by guzu.
2011-11-11 10:48:17 +01:00
Michal Schmidt
5831e9b726 job: colored status messages on boot
The lack or green/red status marks on boot has been described by some
users as "critical", "dramatic", "dealbreaker", "showstopper". Seriously.
2011-11-11 00:27:02 +01:00
Michal Schmidt
c5419d4239 service: don't warn if the pidfile still exists after SIGCHLD
A service that drops its privileges may not be able to remove it when it
exits. The stale pidfile is not a problem as long as the service
carefully recognizes it on its next start.

systemd would produce a warning after the service exits:
  PID ... read from file ... does not exist. Your service or init
  script might be broken.

Silence the warning in this case. Still warn if this error is detected
when loading the pidfile after service start.

Noticed by Miroslav Lichvar in
 https://bugzilla.redhat.com/show_bug.cgi?id=752396
2011-11-10 10:18:08 +01:00
Michal Schmidt
42c3673e63 units/suse: let rc-local.service log to syslog
Same change as the previous commit did for Fedora. fcrozat agreed.
2011-11-09 10:10:38 +01:00
Michal Schmidt
9d7286112d units/fedora: let rc-local.service log to syslog
rc-local.service should not be excluded from the default stdout logging.

Missing logs were noticed by Andrew McNabb in
 https://bugzilla.redhat.com/show_bug.cgi?id=750032#c3
2011-11-09 09:22:30 +01:00
Michal Schmidt
c99e42c1db units: drop unnecessary 'StandardOutput=syslog'
DefaultStandardOutput is syslog anyway. There's no reason to assume that
the administrator would want these units to be excluded when he configures
a different DefaultStandardOutput.
2011-11-09 08:48:25 +01:00
Lennart Poettering
1e2579fdeb Merge branch 'master' into journal 2011-11-08 19:44:16 +01:00
Lennart Poettering
a40593a0d0 TODO 2011-11-08 19:12:29 +01:00
Lennart Poettering
de190aef08 journal: implement multiple field matches 2011-11-08 18:20:03 +01:00
Lennart Poettering
9b3c575ed9 macro: fix ALIGN_TO macro definition 2011-11-08 18:18:48 +01:00
Michal Schmidt
75c982a79f man: fix a typo in signal number 2011-11-07 01:10:35 +01:00
Michal Schmidt
4743137a4b utmp: for DEAD_PROCESS write the current time to wtmp
Zeroed .ut_tv values in wtmp confuse chkrootkit.

Reported and debugged by Norman Smith. This is based on his patch,
but modified to behave more like upstart did in F14 and cleaned up.

https://bugzilla.redhat.com/show_bug.cgi?id=743696
2011-11-07 01:10:35 +01:00
Michal Schmidt
fa4ad7ceca utmp: initialize store with the found entry, not with the lookup key 2011-11-07 01:10:35 +01:00
Michal Schmidt
b8e47420b3 utmp: no need to zero a struct before overwriting it with memcpy 2011-11-07 01:10:34 +01:00
Michal Schmidt
0ad26e09de utmp: remove unneded parameters
With these functions no caller ever passes anything else than 0
for 't' (meaning the current time will be used).
2011-11-07 01:09:53 +01:00
Lennart Poettering
4cbd9ecf45 update TODO 2011-11-03 19:55:36 +01:00
Lennart Poettering
353fa6a21a cgroup: immediately remove all cgroups which run empty
Some controllers have scaling problems when many empty cgroups exist.
Hence, as soon as we get a notification that a cgroup is empty, delete
it. This is also nice to keep the systemd-cgls output short.
2011-11-03 19:42:53 +01:00
Lennart Poettering
263653e103 Merge remote-tracking branch 'zbigniew/systemadm_changes' 2011-11-02 14:08:49 +01:00
Ran Benita
f5a613c03c bash-completion: rename file since it is no longer for systemctl only 2011-11-02 13:07:47 +01:00
Ran Benita
3cdbf916d3 bash-completion: add completions for systemd-loginctl
This script is straightforward and should give proper completions for
all of systemd-loginctl's verbs.
2011-11-02 13:07:43 +01:00
Ran Benita
8aea83c718 bash-completion: update with new verbs and arguments
Adds arguments --root= --runtime --no-legend.
Adds verbs link mask unmask reenable list-unit-files.
Also uses list-unit-files to make nicer enable and disable completions.

Rebased due to changes in systemctl.
2011-11-02 13:07:36 +01:00
Dexter Morgan
6fdae8a6a4 Add Mageia support
This patch adds support for the Mageia Linux distribution:
 http://www.mageia.org/

Mageia is a fork of Mandriva although some divergence has already occured
and thus inclusion of these changes upstream allow us to (hopefully)
migrate more rapidly to the new standard approaches systemd offers.
Indeed, we already use the preferred mechanism of OS identification via
the /etc/os-release file rather than a distro specific variation.

This patch mostly mirrors the patch added previously for Mandriva
support. In addition to those original authors, this patch was mostly
written by Dexter Morgan with help from Colin Guthrie and Eugeni Dodonov.
2011-11-02 02:16:39 +01:00
Lennart Poettering
25d6283acf update TODO 2011-11-01 23:53:15 +01:00
Tom Gundersen
87e75fddbb cryptsetup-generator: avoid ordering cycle on swap
Devices with random keys (swap), should not be ordered before local-fs.target,
as this creates a cycle with systemd-load-random-seed.service (and also it
does not make sense, a swap device is not a local-fs).
2011-11-01 23:42:41 +01:00