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Fixes #5483
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Just to clarify, that these options expect arguments, following our
usual style.
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Found with:
git grep '"[^"]*[a-z0-9]([0-9]\+p\?)' src/ | grep -vF man:
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systemctl edit & reboot fixlets
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fails
The hint is not too explicit, and just refers to the man page, because this
option is slightly dangereous. This was we don't have to discuss the limitation
in the hint itself.
Fixes #4002.
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"systemctl --user edit --force --full tmp.mount" would crash, when we'd do
basename(NULL). Fix this by creating a new unit or a new override even if
not path is found.
Tested with:
systemctl --user edit --force --full tmp.mount
systemctl --user edit --force tmp.mount
systemctl --user edit foo@.service
systemctl --user edit foo@bar.service
systemctl --user edit --full foo@.service
systemctl --user edit --full foo@bar.service
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Fixes #5383.
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This adds a unified "copy_flags" parameter to all copy_xyz() function
calls, replacing the various boolean flags so far used. This should make
many invocations more readable as it is clear what behaviour is
precisely requested. This also prepares ground for adding support for
more modes later on.
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And then show it, to make things a bit friendlier to the user if we fail
acquiring some props.
In fact, this fixes a number of actual bugs, where we used an error
structure for output that we actually never got an error in.
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When services are already enabled/disabled/masked, make sure
that --now still enforces start/stop.
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dropins
Essentially, instead of sequentially adding deps based on all symlinks
encountered in .wants and .requires dirs for each name and each unit file load
path, iteratate over the load paths and unit names gathering symlinks, then
order them based on priority, and then iterate over the final list, adding
dependencies.
This patch doesn't change the logic too much, except that the order in which
dependencies are applied might be different. It wasn't defined before, so that
not really a change. Adding filtering on the symlinks is left for later
patches.
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Two fixes to path lookup when --root is used
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does not exist (#5201)
"systemctl show -pUnknown <service>" used to exit with '0' even if the property
passed by '-p' doesn't exist. But since commit 3dced37b7c2c9a5c733817 (v231+),
it exits with a failure status.
"systemctl show" is supposed to be scriptable and therefore its behavior is
supposed to be stable.
This patch restores the old behavior on which a couple of scripts already rely
now.
Also when the requested property doesn't exist, it always logs it at the debug
level since this part of the code is only used by the show command.
Fixes: #5118
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The general rule is:
- code in shared/ should take an "original_root" argument (possibly NULL)
and pass it along down to chase_symlinks
- code in core/ should always use specify original_root==NULL, since we
don't support running the manager from non-root directory
- code in systemctl and other tools should pass arg_root.
For any code that is called from tools which support --root, chase_symlinks
must be used to look up paths.
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The paths in lookup_paths already contain the arg_root prefix.
Fixes #5190.
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'systemctl --failed' is an extremely common operation and it's nice to have
a shortcut for it.
Revert "man: don't document systemctl --failed" and add the option back to
systemctl's help and shell completion scripts.
This reverts commit 036359ba8d0aba7db7eac75d10073a849a033fd1.
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https://bugzilla.redhat.com/show_bug.cgi?id=1414904#c14 and #c15.
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The same logic as described in acc28e2e3037d689d6481e applies to any time we are
switching root, to just set the flag unconditionally.
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A fixed value (6 and later 5) was added back in 4deb3b93911, and
not updated when load_len was added later on.
Also the other 5 with 1 + 1 + 1 + 1 + 1 to make it easier to see
that this is about the column separators.
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CID #1368270.
Easily reproduced with COLUMNS=50 ./systemctl --no-pager.
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When a unit is part of several dependency constraints of another
unit, list-dependencies repeats the name of the dependency for each
dep constraint the unit is encountered.
For example:
$ systemctl cat test-main.target
# /etc/systemd/system/test-main.target
[Unit]
Description=Main Target
$ systemctl cat test.target
[Unit]
Description=Sub target
PartOf=test-main.target
[Install]
WantedBy=test-main.target
$ systemctl enable test.target
Created symlink from /etc/systemd/system/test-main.target.wants/test.target to /etc/systemd/system/test.target.
$ systemctl show test-main.target | grep test.target
Wants=test.target
ConsistsOf=test.target
[...]
$ systemctl list-dependencies test-main.target
test-main.target
● ├─test.target
● └─test.target
With this patch applied, dependencies are shown only once.
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Core was generated by `systemctl cat test@.target test@.service'.
Program terminated with signal SIGSEGV, Segmentation fault.
32 movdqu (%rdi), %xmm0
(gdb) bt
-0 strrchr () at ../sysdeps/x86_64/strrchr.S:32
-1 0x00007f57fdf837fe in __GI___basename (filename=0x0) at basename.c:24
-2 0x000055b8a77d0d91 in unit_find_paths (bus=0x55b8a9242f90, unit_name=0x55b8a92428f0 "test@.service", lp=0x7ffdc9070400, fragment_path=0x7ffdc90703e0, dropin_paths=0x7ffdc90703e8) at src/systemctl/systemctl.c:2584
-3 0x000055b8a77dbae5 in cat (argc=3, argv=0x7ffdc9070678, userdata=0x0) at src/systemctl/systemctl.c:5324
-4 0x00007f57fe55fc6b in dispatch_verb (argc=5, argv=0x7ffdc9070668, verbs=0x55b8a77f1c60 <verbs>, userdata=0x0) at src/basic/verbs.c:92
-5 0x000055b8a77e477f in systemctl_main (argc=5, argv=0x7ffdc9070668) at src/systemctl/systemctl.c:8141
-6 0x000055b8a77e5572 in main (argc=5, argv=0x7ffdc9070668) at src/systemctl/systemctl.c:8412
The right behaviour is not easy in this case. Implement some "sensible" logic.
Fixes #4912.
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Let's remove chase_symlinks_prefix() and instead introduce a flags parameter to
chase_symlinks(), with a flag CHASE_PREFIX_ROOT that exposes the behaviour of
chase_symlinks_prefix().
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(#4773)
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This is a different way to implement the fix proposed by commit
a4021390fef27f4136497328f suggested by Lennart Poettering.
In this patch we instruct PID1 to not kill "systemctl switch-root" command
started by initrd-switch-root service using the "argv[0][0]='@'" trick.
See: https://www.freedesktop.org/wiki/Software/systemd/RootStorageDaemons/ for
more details.
We had to backup argv[0] because argv is modified by dispatch_verb().
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(before)$ systemctl list-jobs --before --after
JOB UNIT TYPE STATE
8769 foobar.device start running
A job waits for this job: 8669 (run-rb6da596d0cfa4e36b7c594cd973e795a.service/start)
8669 run-rb6da596d0cfa4e36b7c594cd973e795a.service start waiting
This job waits for a job: 8769 (foobar.device/start)
2 jobs listed.
(after)$ systemctl list-jobs --before --after
JOB UNIT TYPE STATE
8769 foobar.device start running
waiting for job 8669 (run-rb6da596d0cfa4e36b7c594cd973e795a.service/start)
8669 run-rb6da596d0cfa4e36b7c594cd973e795a.service start waiting
blocking job 8769 (foobar.device/start)
2 jobs listed.
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called
Let's expose the new bus functions we added in the previous commit in
systemctl.
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Sometimes it is useful for debugging purposes to force systemctl to connect to
PID 1 via the bus instead of direct connection, even if the direct connection
is possible.
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Otherwise we think the alias is the real unit, and may edit/cat the
wrong unit.
Before this patch:
$ systemctl edit autovt@ # creates dropin in /etc/systemd/system/autovt@.service.d
$ systemctl cat autovt@ | grep @.service
# /lib/systemd/system/autovt@.service
# that serial gettys are covered by serial-getty@.service, not this
# /etc/systemd/system/autovt@.service.d/override.conf
$ systemctl cat getty@ | grep @.service
# /lib/systemd/system/getty@.service
# that serial gettys are covered by serial-getty@.service, not this
After this patch
$ systemctl edit autovt@ # creates dropin in /etc/systemd/system/getty@.service.d
$ systemctl cat autovt@ | grep @.service
# /usr/lib/systemd/system/getty@.service
# that serial gettys are covered by serial-getty@.service, not this
# /etc/systemd/system/getty@.service.d/override.conf
systemctl cat getty@ | grep @.service
# /usr/lib/systemd/system/getty@.service
# that serial gettys are covered by serial-getty@.service, not this
# /etc/systemd/system/getty@.service.d/override.conf
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extract_first_words deals fine with the string being NULL, so drop the upfront
check for that.
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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.
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Tree wide cleanups
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Add "perpetual" unit concept, sysctl fixes, networkd fixes, systemctl color fixes, nspawn discard.
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Reported by @evverx in #4493.
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Make the underlining between the header and the body and between the units of
different types span the whole width of the table.
Let's never make the table wider than necessary (which is relevant due the
above).
When space is limited and we can't show the full ID or description string
prefer showing the full ID over the full description. The ID is after all
something people might want to copy/paste, while the description is mostly just
helpful decoration.
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If we turn on red color for the active column and it is not combined with
underlining, then we need to turn it off explicitly afterwards. Do that.
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Suggested by @keszybz in #4488.
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(Also, let's not use the binary |= operator on "bool" variables).
Fix-up for 93a0884126146361ca078ec627da2cf766205a1c.
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It may be desired by users to know what targets a particular service is
installed into. Improve user friendliness by teaching the is-enabled
command to show such information when used with --full.
This patch makes use of the newly added UnitFileFlags and adds
UNIT_FILE_DRY_RUN flag into it. Since the API had already been modified,
it's now easy to add the new dry-run feature for other commands as
well. As a next step, --dry-run could be added to systemctl, which in
turn might pave the way for a long requested dry-run feature when
running systemctl start.
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Introduce a new enum to get rid of some boolean arguments of unit_file_*
functions. It unifies the code, makes it a bit cleaner and extensible.
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This makes strjoin and strjoina more similar and avoids the useless final
argument.
spatch -I . -I ./src -I ./src/basic -I ./src/basic -I ./src/shared -I ./src/shared -I ./src/network -I ./src/locale -I ./src/login -I ./src/journal -I ./src/journal -I ./src/timedate -I ./src/timesync -I ./src/nspawn -I ./src/resolve -I ./src/resolve -I ./src/systemd -I ./src/core -I ./src/core -I ./src/libudev -I ./src/udev -I ./src/udev/net -I ./src/udev -I ./src/libsystemd/sd-bus -I ./src/libsystemd/sd-event -I ./src/libsystemd/sd-login -I ./src/libsystemd/sd-netlink -I ./src/libsystemd/sd-network -I ./src/libsystemd/sd-hwdb -I ./src/libsystemd/sd-device -I ./src/libsystemd/sd-id128 -I ./src/libsystemd-network --sp-file coccinelle/strjoin.cocci --in-place $(git ls-files src/*.c)
git grep -e '\bstrjoin\b.*NULL' -l|xargs sed -i -r 's/strjoin\((.*), NULL\)/strjoin(\1)/'
This might have missed a few cases (spatch has a really hard time dealing
with _cleanup_ macros), but that's no big issue, they can always be fixed
later.
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(printf("%.*s", -1, "…") is the same as not specifying the precision at all.)
v2: also underline highlighted (failing) units
Fixes #4137.
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also have a unit state of that name
Fixes: #3971
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whether it is a command or a daemon
SIGTERM should be considered a clean exit code for daemons (i.e. long-running
processes, as a daemon without SIGTERM handler may be shut down without issues
via SIGTERM still) while it should not be considered a clean exit code for
commands (i.e. short-running processes).
Let's add two different clean checking modes for this, and use the right one at
the appropriate places.
Fixes: #4275
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Let's get rid of is_clean_exit_lsb(), let's move the logic for the special
handling of the two LSB exit codes into the sysv-generator by writing out
appropriate SuccessExitStatus= lines if the LSB header exists. This is not only
semantically more correct, bug also fixes a bug as the code in service.c that
chose between is_clean_exit_lsb() and is_clean_exit() based this check on
whether a native unit files was available for the unit. However, that check was
bogus since a long time, since the SysV generator was introduced and native
SysV script support was removed from PID 1, as in that case a unit file always
existed.
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