Let's color output when we're forwarding to the console. To make this
work, we inherit TERM from pid 1 and use it to decide whether we should
output colors or not.
If we're connected to /dev/null, we're likely going to be writing
colors to something that's not stdout/stderr, so let's fall back to
checking TERM if that's the case.
Unfortunately, journal_file_next_entry() returns 0 when the next entry
not found. The commit cc938e4a0a adds
FIXME comment about that. We should really fix that, but the function and
its return value are used in many place, hence checking all usecases is not
easy. So, let's workaround that here, and handle the 0 return value by
the caller.
Follow-up for 34af74946e.
Fixes#26822.
Log an error when a rule line contains conflicting match expressions, e.g.
NAME=="value", NAME!="value"
Log a warning when a rule line contains duplicate expressions, e.g.
NAME=="value", NAME=="value"
Let's modernize userdbd furzer, and use the common child handling we
nowadays have in sd-event, instead of rolling our own.
This also means we'll start using pidfds where we can.
Let's make use of SD_EVENT_SIGNAL_PROCMASK so that we don't have to mask
the signals manually. Let's use sd_event_set_exit_signal() instead of
rolling our own SIGTERM/SIGINT handling. Let's use "floating" event
sources instead of keeping references on our own.
Let's also debug log if we can't enable watchdog handling.
Currently, when CHASE_PARENT is specified, we chase the parent directory
of the symlink itself. Let's change this and chase the parent directory
of the symlink target so that trying to open the actual file later with
O_NOFOLLOW doesn't fail with ELOOP.
To get the current behavior, callers can add CHASE_NOFOLLOW to chase
the parent directory of the symlink itself.
Currently, when CHASE_MKDIR_0755 is specified, we create all components
of the path as directories. Instead, let's change the flag to only create
parent directories and leave the final component of the PATH untouched.
Also, allow CHASE_NONEXISTENT with CHASE_MKDIR_0755 now that it doesn't
create all components anymore.
Finally, rework chase_symlinks_and_open() and chase_symlinkat_at_and_open()
to always chase the parent directory and use xopenat() to open the final
component of the path. This allows us to pass O_CREAT to create the file or
directory (O_DIRECTORY) if it is missing. If CHASE_PARENT is configured, we
just reopen the parent directory that we chased.
The interface requires services to write to the cgroup file to activate notifications,
but with ProtectControlGroups=yes we make it read-only. Add a writable bind mount.
Follow-up for 6bb0084204
Yu Watanabe
Daan De Meyer
Addison Snelling
Frantisek Sumsal
Luca Boccassi
OMOJOLA JOSHUA
Ludwig Nussel
Dmitry V. Levin
Cornelius Hoffmann
Lennart Poettering
Mike Yuan
bri
Zbigniew Jędrzejewski-Szmek
Franck Bui