When running integration tests under sanitizers D-Bus fails to
shutdown cleanly, causing unnecessary noise in the logs:
```
dbus-daemon[272]: ==272==LeakSanitizer has encountered a fatal error.
dbus-daemon[272]: ==272==HINT: For debugging, try setting environment variable LSAN_OPTIONS=verbosity=1:log_threads=1
dbus-daemon[272]: ==272==HINT: LeakSanitizer does not work under ptrace (strace, gdb, etc)
```
Since we're not "sanitizing" D-Bus anyway let's disable LSan's at_exit
check for the dbus.service to get rid of this error.
NULLSTR_FOREACH expects two terminating NULs, but the joined string
for extension-release.d only had the canonical one.
Use a placeholder when joining and fix it manually.
It's so similar to copy_access(), hence let's move it over and rename it
in similar style to the rest of the functions.
No change in behaviour, just moving things over.
This reverts behaviour of systemd-run's unit name generation to the
status quo ante of #18871: we chop off the ":1." prefix if we can.
However, to address the issue that the unique name can overrun we then
do what #18871 did as fallback: only chop off the ":" prefix.
This way we should have pretty names that look like they always looked
in the common case, but in the case of a unique name overrun we still
will have names that work.
Follow-up for #18871
REMOVE_CHMOD is necessary to remove files/dirs that are owned by us but
have an access mode that would not allow us to remove them. In generic
destructor calls for use with `_cleanup_` that are "fire-and-forget"
style we should make use of that, to maximize the chance we can actually
remove the files/dirs.
(Also, add in REMOVE_MISSING_OK. Just because prettier, we ignore the
return codes anyway, but it' a bit nicer to ignore a bit fewer errors.)
In https://bugzilla.redhat.com/show_bug.cgi?id=1933873 a keymap was set without
the package that provides it being installed (it2 is in kbd-legacy, which is
not installed by default). Setting a non-installed keymap is problematic,
because it results in nasty failures afterward (*). So let's to the same as
e.g. for locale data, and refuse a setting if the definition doesn't exists in
the filesystem.
The implementation using nftw() is not the most efficient, but I think it's OK
in this case. This is definitely not in any kind of hot path, and I prefer not
to duplicate the filename manipulation logic in a second function.
(*) If the keymap is not found, vconsole-setup.service will fail.
dracut-cmdline-ask.service has Requires=vconsole-setup.service, so it will also
fail, and this breaks boot. dracut-cmdline-ask.service having a hard dependency
is appropriate though: we sadly don't display what the keymap is, and with a wrong
keymap, any attempts to enter a password are likely to fail.
We would return a real error sometimes from the callback, and FTW_STOP other
times. Because of FTW_ACTIONRETVAL, everything except FTW_STOP would be
ignored. I don't think using FTW_ACTIONRETVAL is useful.
nftw() can only be used meaningfully with errno. Even if we return a proper
value ourselves from the callback, it will be propagated as a return value from
nftw(), but there is no way to distinguish this from a value generated by
nftw() itself, which is -1/-EPERM on error. So let's set errno ourselves so the
caller can at least look at that.
The code still ignores all errors.
Some code in systemd-run checks that a bus's unique name must start with
`:1.`. However the dbus specification on unique connection names only specifies
that it must begin with a colon. And the freedesktop/dbus implementation allows
allows unique names to go up to `:INT_MAX.INT_MAX`. So update the
current check to only look for a colon at the beginning.
Nominally, the bug was in unit_load_dropin(), which just took the last mtime
instead of calculating the maximum. But instead of adding code to wrap the
loop, this patch goes in the other direction.
All (correct) callers of config_parse() followed a very similar pattern to
calculate the maximum mtime. So let's simplify things by making config_parse()
assume that mtime is initialized and update it to the maximum. This makes all
the callers that care about mtime simpler and also fixes the issue in
unit_load_dropin().
config_parse_many_nulstr() and config_parse_many() are different, because it
makes sense to call them just once, and current ret_mtime behaviour make sense.
Fixes#17730, https://bugzilla.redhat.com/show_bug.cgi?id=1933137.
Frantisek Sumsal
Luca Boccassi
Lennart Poettering
ChopperRob
Zbigniew Jędrzejewski-Szmek
Yu Watanabe
Alastair Pharo
caoxia
Anita Zhang
Hela Basa