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Commit Graph

59 Commits

Author SHA1 Message Date
caoxia2008cxx
f813b62316
set boot time from monotonic time (#19444)
utmp: calculate boot timestamp from monotonic timestamp instead of realtime timestamp
2021-04-29 11:05:01 +02:00
Zbigniew Jędrzejewski-Szmek
61b315de9b Add comma in structured initialization in a few places
It just looks nicer…
2021-02-10 14:43:10 +01:00
Yu Watanabe
d2acb93dc5 tree-wide: enable colorized logging for daemons when run in console
It may be useful when debugging daemons.
2021-02-01 01:13:44 +09:00
Yu Watanabe
fed66db05d tree-wide: use return value of log_xxx_errno() 2020-11-20 02:58:27 +09:00
Yu Watanabe
db9ecf0501 license: LGPL-2.1+ -> LGPL-2.1-or-later 2020-11-09 13:23:58 +09:00
Zbigniew Jędrzejewski-Szmek
c413bb28df tree-wide: correct cases where return log_{error,warning} is used without value
In various cases, we would say 'return log_warning()' or 'return log_error()'. Those
functions return 0 if no error is passed in. For log_warning or log_error this doesn't
make sense, and we generally want to propagate the error. In the few cases where
the error should be ignored, I think it's better to split it in two, and call 'return 0'
on a separate line.
2020-09-08 17:40:46 +02:00
Zbigniew Jędrzejewski-Szmek
e9d9d50cef initctl,update-utmp: define iterator variable in loop 2020-07-02 17:12:23 +02:00
Zbigniew Jędrzejewski-Szmek
bc9d1dbfc8 update-utmp,initctl: drop ppid check
Such checks make debugging harder but serve no useful purpose otherwise.
We got rid of all the checks for root, let's kill those too.
2020-07-02 17:12:23 +02:00
Zbigniew Jędrzejewski-Szmek
38cd55b007 Remove unneded {}s
$ perl -i -0pe 's|\s+{\n([^\n]*;)\n\s+}\n|\n\1\n|gms' **/*.c

Inspired by ea7cbf5bdd.
2020-04-13 09:31:49 +02:00
Yu Watanabe
455fa9610c tree-wide: drop string.h when string-util.h or friends are included 2019-11-04 00:30:32 +09:00
Zbigniew Jędrzejewski-Szmek
ecfd9a990c update-utmp: remove dead conditional
Coverity was complaining that runlevel>0 is guaranteed at this point.
CID #1404262.

While at it, shorten the code a bit.
2019-10-21 21:12:42 +02:00
Zbigniew Jędrzejewski-Szmek
7268295765 update-utmp: define main() through macro
Update logging a bit: drop logging of the pid, nowadays pid1 and journald
do a very good job of logging that. Always log about failure to open audit
fd, but at DEBUG_LEVEL if not important.
2019-09-16 09:15:05 +02:00
Tommi Rantala
e57cd3fb88 update-utmp: fix assertion failure if rescue.target, multi-user.target and graphical.target are all inactive
If rescue.target, multi-user.target and graphical.target are all
inactive, get_current_runlevel() is not able to determine current
runlevel, and returns with zero. This zero runlevel value results to
assertion failure in utmp_put_runlevel().

 # systemctl stop rescue.target multi-user.target graphical.target
 # systemctl start systemd-update-utmp-runlevel.service

 systemd[1]: Stopped target Graphical Interface.
 systemd[1]: Stopped target Multi-User System.
 systemd[1]: Starting Update UTMP about System Runlevel Changes...
 systemd-update-utmp[67]: Assertion 'runlevel > 0' failed at src/shared/utmp-wtmp.c:275, function utmp_put_runlevel(). Aborting.
 systemd[1]: systemd-update-utmp-runlevel.service: Main process exited, code=dumped, status=6/ABRT
 systemd[1]: systemd-update-utmp-runlevel.service: Failed with result 'core-dump'.
 systemd[1]: Failed to start Update UTMP about System Runlevel Changes.

Let's just print a warning in this case and skip the utmp update, to
avoid systemd-update-utmp-runlevel.service failures.
2019-08-14 18:22:09 +02:00
Zbigniew Jędrzejewski-Szmek
ca78ad1de9 headers: remove unneeded includes from util.h
This means we need to include many more headers in various files that simply
included util.h before, but it seems cleaner to do it this way.
2019-03-27 11:53:12 +01:00
Yu Watanabe
3664cbabdd update-utmp: use _cleanup_ attribute to finalize process 2018-11-23 06:22:30 +09:00
Lennart Poettering
6bf3c61c57 log: introduce new helper call log_setup_service()
Let's reduce the common boilerplate and have a single setup function
used by all service code to setup logging.
2018-11-20 11:18:22 +01:00
Lennart Poettering
0c69794138 tree-wide: remove Lennart's copyright lines
These lines are generally out-of-date, incomplete and unnecessary. With
SPDX and git repository much more accurate and fine grained information
about licensing and authorship is available, hence let's drop the
per-file copyright notice. Of course, removing copyright lines of others
is problematic, hence this commit only removes my own lines and leaves
all others untouched. It might be nicer if sooner or later those could
go away too, making git the only and accurate source of authorship
information.
2018-06-14 10:20:20 +02:00
Lennart Poettering
818bf54632 tree-wide: drop 'This file is part of systemd' blurb
This part of the copyright blurb stems from the GPL use recommendations:

https://www.gnu.org/licenses/gpl-howto.en.html

The concept appears to originate in times where version control was per
file, instead of per tree, and was a way to glue the files together.
Ultimately, we nowadays don't live in that world anymore, and this
information is entirely useless anyway, as people are very welcome to
copy these files into any projects they like, and they shouldn't have to
change bits that are part of our copyright header for that.

hence, let's just get rid of this old cruft, and shorten our codebase a
bit.
2018-06-14 10:20:20 +02:00
Zbigniew Jędrzejewski-Szmek
11a1589223 tree-wide: drop license boilerplate
Files which are installed as-is (any .service and other unit files, .conf
files, .policy files, etc), are left as is. My assumption is that SPDX
identifiers are not yet that well known, so it's better to retain the
extended header to avoid any doubt.

I also kept any copyright lines. We can probably remove them, but it'd nice to
obtain explicit acks from all involved authors before doing that.
2018-04-06 18:58:55 +02:00
Zbigniew Jędrzejewski-Szmek
53e1b68390 Add SPDX license identifiers to source files under the LGPL
This follows what the kernel is doing, c.f.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5fd54ace4721fc5ce2bb5aef6318fcf17f421460.
2017-11-19 19:08:15 +01:00
Lennart Poettering
4aa1d31c89 Merge pull request #6974 from keszybz/clean-up-defines
Clean up define definitions
2017-10-04 19:25:30 +02:00
Yu Watanabe
4c70109600 tree-wide: use IN_SET macro (#6977) 2017-10-04 16:01:32 +02:00
Zbigniew Jędrzejewski-Szmek
349cc4a507 build-sys: use #if Y instead of #ifdef Y everywhere
The advantage is that is the name is mispellt, cpp will warn us.

$ git grep -Ee "conf.set\('(HAVE|ENABLE)_" -l|xargs sed -r -i "s/conf.set\('(HAVE|ENABLE)_/conf.set10('\1_/"
$ git grep -Ee '#ifn?def (HAVE|ENABLE)' -l|xargs sed -r -i 's/#ifdef (HAVE|ENABLE)/#if \1/; s/#ifndef (HAVE|ENABLE)/#if ! \1/;'
$ git grep -Ee 'if.*defined\(HAVE' -l|xargs sed -i -r 's/defined\((HAVE_[A-Z0-9_]*)\)/\1/g'
$ git grep -Ee 'if.*defined\(ENABLE' -l|xargs sed -i -r 's/defined\((ENABLE_[A-Z0-9_]*)\)/\1/g'
+ manual changes to meson.build

squash! build-sys: use #if Y instead of #ifdef Y everywhere

v2:
- fix incorrect setting of HAVE_LIBIDN2
2017-10-04 12:09:29 +02:00
Lennart Poettering
df0ff12775 tree-wide: make use of getpid_cached() wherever we can
This moves pretty much all uses of getpid() over to getpid_raw(). I
didn't specifically check whether the optimization is worth it for each
replacement, but in order to keep things simple and systematic I
switched over everything at once.
2017-07-20 20:27:24 +02:00
Zbigniew Jędrzejewski-Szmek
72cdb3e783 build-sys: drop automake support
v2:
- also mention m4
2017-07-18 10:04:44 -04:00
Zbigniew Jędrzejewski-Szmek
f97b34a629 Rename formats-util.h to format-util.h
We don't have plural in the name of any other -util files and this
inconsistency trips me up every time I try to type this file name
from memory. "formats-util" is even hard to pronounce.
2016-11-07 10:15:08 -05:00
Lennart Poettering
dfc7f59430 update-utmp: let's use STR_IN_SET() where it is pretty 2016-10-20 14:22:43 -04:00
Daniel Mack
b26fa1a2fb tree-wide: remove Emacs lines from all files
This should be handled fine now by .dir-locals.el, so need to carry that
stuff in every file.
2016-02-10 13:41:57 +01:00
Lennart Poettering
4afd3348c7 tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy
GLIB has recently started to officially support the gcc cleanup
attribute in its public API, hence let's do the same for our APIs.

With this patch we'll define an xyz_unrefp() call for each public
xyz_unref() call, to make it easy to use inside a
__attribute__((cleanup())) expression. Then, all code is ported over to
make use of this.

The new calls are also documented in the man pages, with examples how to
use them (well, I only added docs where the _unref() call itself already
had docs, and the examples, only cover sd_bus_unrefp() and
sd_event_unrefp()).

This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we
tend to call our destructors these days.

Note that this defines no public macro that wraps gcc's attribute and
makes it easier to use. While I think it's our duty in the library to
make our stuff easy to use, I figure it's not our duty to make gcc's own
features easy to use on its own. Most likely, client code which wants to
make use of this should define its own:

       #define _cleanup_(function) __attribute__((cleanup(function)))

Or similar, to make the gcc feature easier to use.

Making this logic public has the benefit that we can remove three header
files whose only purpose was to define these functions internally.

See #2008.
2015-11-27 19:19:36 +01:00
Lennart Poettering
b5efdb8af4 util-lib: split out allocation calls into alloc-util.[ch] 2015-10-27 13:45:53 +01:00
Lennart Poettering
f0792aae43 update-utmp: flush and close the bus used for connections after use 2015-09-29 21:55:52 +02:00
Lennart Poettering
f0960da0fa update-utmp: minor modernizations 2015-09-29 21:55:52 +02:00
Lennart Poettering
266f3e269d bus-util: rename bus_open_transport() to bus_connect_transport()
In sd-bus, the sd_bus_open_xyz() family of calls allocates a new bus,
while sd_bus_default_xyz() family tries to reuse the thread's default
bus. bus_open_transport() sometimes internally uses the former,
sometimes the latter family, but suggests it only calls the former via
its name. Hence, let's avoid this confusion, and generically rename the
call to bus_connect_transport().

Similar for all related calls.

And while we are at it, also change cgls + cgtop to do direct systemd
connections where possible, since all they do is talk to systemd itself.
2015-09-29 21:55:52 +02:00
Lennart Poettering
ece174c543 tree-wide: drop {} from one-line if blocks
Patch via coccinelle.
2015-09-09 08:20:20 +02:00
Lennart Poettering
76ef789d26 tree-wide: make use of log_error_errno() return value
Turns this:

        r = -errno;
        log_error_errno(errno, "foo");

into this:

        r = log_error_errno(errno, "foo");

and this:

        r = log_error_errno(errno, "foo");
        return r;

into this:

        return log_error_errno(errno, "foo");
2015-09-09 08:20:20 +02:00
Markus Elfring
3e044c492e Bug #944: Deletion of unnecessary checks before a few calls of systemd functions
The following functions return immediately if a null pointer was passed.
* calendar_spec_free
* link_address_free
* manager_free
* sd_bus_unref
* sd_journal_close
* udev_monitor_unref
* udev_unref

It is therefore not needed that a function caller repeats a corresponding check.

This issue was fixed by using the software Coccinelle 1.0.1.
2015-08-17 10:45:30 +02:00
Ronny Chevalier
6482f6269c shared: add formats-util.h 2015-04-10 23:54:48 +02:00
Thomas Hindoe Paaboel Andersen
2eec67acbb remove unused includes
This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
2015-02-23 23:53:42 +01:00
Lennart Poettering
d5d8429a12 everywhere: remove configurability of sysv runlevel to target mapping
With this change runlevel 2, 3, 4 are mapped to multi-user.target for
good, and 5 to graphical.target. This was already the previous mapping
but is now no longer reconfigurable, but hard-coded into the core.

This should generally simplify things, but also fix one bug: the
sysv-generator previously generated symlinks to runlevel[2-5].target
units, which possibly weren't picked up if these aliases were otherwise
only referenced by the real names "multi-user.target" and
"graphical.target".

We keep compat aliases "runlevel[2345].target" arround for cases where
this target name is explicitly requested.
2015-02-18 20:20:14 +01:00
Michal Schmidt
56f64d9576 treewide: use log_*_errno whenever %m is in the format string
If the format string contains %m, clearly errno must have a meaningful
value, so we might as well use log_*_errno to have ERRNO= logged.

Using:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\((".*%m.*")/log_\1_errno(errno, \2/'

Plus some whitespace, linewrap, and indent adjustments.
2014-11-28 19:49:27 +01:00
Michal Schmidt
f647962d64 treewide: yet more log_*_errno + return simplifications
Using:
find . -name '*.[ch]' | while read f; do perl -i.mmm -e \
 'local $/;
  local $_=<>;
  s/(if\s*\([^\n]+\))\s*{\n(\s*)(log_[a-z_]*_errno\(\s*([->a-zA-Z_]+)\s*,[^;]+);\s*return\s+\g4;\s+}/\1\n\2return \3;/msg;
  print;'
 $f
done

And a couple of manual whitespace fixups.
2014-11-28 18:56:16 +01:00
Michal Schmidt
da927ba997 treewide: no need to negate errno for log_*_errno()
It corrrectly handles both positive and negative errno values.
2014-11-28 13:29:21 +01:00
Michal Schmidt
0a1beeb642 treewide: auto-convert the simple cases to log_*_errno()
As a followup to 086891e5c1 "log: add an "error" parameter to all
low-level logging calls and intrdouce log_error_errno() as log calls
that take error numbers", use sed to convert the simple cases to use
the new macros:

find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\("(.*)%s"(.*), strerror\(-([a-zA-Z_]+)\)\);/log_\1_errno(-\4, "\2%m"\3);/'

Multi-line log_*() invocations are not covered.
And we also should add log_unit_*_errno().
2014-11-28 12:04:41 +01:00
Lennart Poettering
0aa281df2c audit: improve the audit messages we generate
always pass along comm, as documented by audit. Always set the correct
comm value.
2014-11-04 00:48:09 +01:00
Zbigniew Jędrzejewski-Szmek
de0671ee7f Remove unnecessary casts in printfs
No functional change expected :)
2014-05-15 15:29:58 +02:00
Lennart Poettering
e7fb33ffef utmp: make sure we don't write the utmp reboot record twice on each boot
(Also, only send the audit msg once, too)
2014-01-30 14:18:46 +01:00
Lennart Poettering
1cea22a5e3 update-utmp: code modernizations 2014-01-30 13:28:56 +01:00
Lennart Poettering
47c649b5de bus: use new property retrieval calls everywhere 2013-11-07 22:17:19 +01:00
Lennart Poettering
5b30bef856 bus: log message parsing errors everywhere with a generalized bus_log_parse_error() 2013-11-07 21:26:31 +01:00
Lennart Poettering
0f8bd8debb bus: move ssh support into public API of libsystem-bus 2013-10-30 15:35:49 +01:00