Fixes #17035. We use "," as the separator between arguments in fstab and crypttab
options field, but the kernel started using "," within arguments. Users will need
to escape those nested commas.
nspawn: give better message when invoked as non-root without arguments
When invoked as non-root, we would suggest re-running as root without any
further hint. But this immediately spawns a machine from the local directory,
which can be rather surprising. So let's give a better hint.
(In general, I don't think commandline programs should do "significant" things
when invoked without any arguments. In this regard it would be better if
systemd-nspawn would not spawn a machine from the current directory if called
with no arguments and at least "-D ." would be required.)
tree-wide: drop assignments to r when we only need errno
If the whole call is simple and we don't need to look at the return value
apart from the conditional, let's use a form without assignment of the return
value. When the function call is more complicated, it still makes sense to
use a temporary variable.
Charles Lee [Thu, 24 Sep 2020 04:29:28 +0000 (06:29 +0200)]
Translated using Weblate (Chinese (Simplified))
Currently translated at 63.1% (118 of 187 strings)
Co-authored-by: Charles Lee <lchopn@gmail.com>
Translate-URL: https://translate.fedoraproject.org/projects/systemd/master/zh_CN/
Translation: systemd/master
tree-wide: switch remaining mount() invocations over to mount_nofollow_verbose()
(Well, at least the ones where that makes sense. Where it does't make
sense are the ones that re invoked on the root path, which cannot
possibly be a symlink.)
mount-util: rework umount_verbose() to take log level and flags arg
Let's make umount_verbose() more like mount_verbose_xyz(), i.e. take log
level and flags param. In particular the latter matters, since we
typically don't actually want to follow symlinks when unmounting.
shutdown: fsync() before detaching loopback devices
This is a follow-up for cae1e8fb88c5a6b0960a2d0be3df8755f0c78462: we
also call the detach ioctls in the shutdown code, hence add the fsync()s
there too, just to be safe.
fs-util: use strna() on returned strings of fd_get_path() if we don't check its return value
Let's make sure to use strna() on the strings returned by fd_get_path()
where we knowingly ignore any failures. We got this right in most cases,
but two were missing.
basic: update fd_get_path() to use proc_mounted() helper
We use it pretty much everywhere else, hence use it here too.
This also changes the error generated from EOPNOTSUPP to ENOSYS, to
match the other cases where we do such a check. One user checked for
EOPNOTSUPP which is updated to check for ENOSYS instead.
core/namespace: drop bitfield annotations from boolean fields
Such microoptimization makes sense when the structure is used in many many copies,
but here's it's not, and the few bytes we save are not worth the extra code the
compiler has to generate:
Currently the systemd-shutdown command attempts to stop swaps, DM
(crypt, LVM2) and loop devices, but it doesn't attempt to stop MD
RAID devices, which means that if the RAID is set up on crypt,
loop, etc. device, it won't be able to stop those underlying devices.
This code extends the shutdown application to also attempt stopping
the MD RAID devices.
homed: make sure our worker processes finish before we exit
When exiting, let's explicitly wait for our worker processes to finish
first. That's useful if unmounting of /home/ is scheduled to happen
right after homed is down, as we then can be sure that the home
directories are properly unmounted and detached by the time homed is
fully terminated (otherwise it might happen that our worker gets killed
by the service manager, thus leaving the home directory and its backing
devices up/left for auto-clean which might be async).
homed: make it easier to run multiple instances of homed
When debugging homed while being logged into a user account manged by
homed it is a good idea to be able to run a second copy of homed. In
order to not collide with its AF_UNIX socket and bus name use, let's add
a new env var $SYSTEMD_HOME_DEBUG_SUFFIX, when set the busnames/socket
names are suffixed by it. When setting this while debugging one can
invoke an additional copy without interfering with the host one.
core: resolve binary names immediately before execution
This has two advantages:
- we save a bit of IO in early boot because we don't look for executables
which we might never call
- if the executable is in a different place and it was specified as a
non-absolute path, it is OK if it moves to a different place. This should
solve the case paths are different in the initramfs.
Since the executable path is only available quite late, the call to
mac_selinux_get_child_mls_label() which uses the path needs to be moved down
too.
Similar to free_and_replace. I think this should be uppercase to make it
clear that this is a macro. free_and_replace should probably be uppercased
too.
Other tools silently ignore non-executable names found in path. By checking
F_OK, we would could pick non-executable path even though there is an executable
one later.
core/load-fragment: don't treat "; ;" as "/usr/bin/;"
We had a special test case that the second semicolon would be interpreted
as an executable name. We would then try to find the executable and rely
on ";" not being found to cause ENOEXEC to be returned. I think that's just
crazy. Let's treat the second semicolon as a separator and ignore the
whole thing as we would whitespace.
test-execute: include test location in error output
test-execute is quite long and even with the test name it takes a moment
to find the relevant spot when something fails. Let's make things easier
by printing the exact location.