Yu Watanabe [Sat, 7 Jun 2025 19:19:46 +0000 (04:19 +0900)]
meson: update generating lists
- config.h is not necessary when generating lists, hence drop it.
- linux/audit.h and libaudit.h are included by missing_audit.h,
hence not necessary to include them explicitly.
Yu Watanabe [Mon, 9 Jun 2025 04:59:39 +0000 (13:59 +0900)]
include: net/if.h requires features.h
The header uses __THROW, which is defined in features.h, to make the
header self-consistent.
Note, src/basic/include/sys/mount.h also uses __THROW, and includes
features.h.
Yu Watanabe [Mon, 9 Jun 2025 00:43:52 +0000 (09:43 +0900)]
journal: use poll.h rather than sys/poll.h
This does not change anything, as poll.h is a one-line wrapper of sys/poll.h.
Note that man pages e.g. poll(2) indicate to include poll.h rather than sys/poll.h.
So, let's use poll.h.
Yu Watanabe [Sun, 8 Jun 2025 20:11:01 +0000 (05:11 +0900)]
utmp-wtmp: replace _PATH_WTMPX -> WTMPX_FILE
_PATH_WTMPX is a kind of internal definition in glibc, and
WTMPX_FILE should be an exposed definition. Both are same,
let's use WTMPX_FILE.
Note, for utmp, we use UTMPX_FILE, rather than _PATH_UTMPX.
Let's use consistent macros.
Yu Watanabe [Sun, 8 Jun 2025 23:33:36 +0000 (08:33 +0900)]
forward: also include paths.h
It provides several important constants, especially _PATH_BSHELL, which
is used in PID1, executor, and run. The header has been included
indirectly through e.g. libmount.h, mntent.h, utmpx.h, and so on.
Let's explicitly include it in forward.h, as libmount.h and friends that
includes paths.h are irrelevant to _PATH_BSHELL, and we may easily fail
to build when code is touched.
The header is not heavy, hence should not hurt anything.
Yu Watanabe [Sun, 8 Jun 2025 01:04:45 +0000 (10:04 +0900)]
libcrypt-util: include random-util.h
Necessary for crypto_random_bytes(), which is used in the branch that
HAVE_CRYPT_GENSALT_RA is false. Unfortunately, our CIs tested only the
other branch.
Yu Watanabe [Fri, 6 Jun 2025 15:09:37 +0000 (00:09 +0900)]
test: extend timeout and enable generating debugging logs
Not sure why the test failed, but maybe the test environment is too
slow? Even this does not fix the failure, by enabling debugging logs,
this hopefully provides more useful information for debugging.
Yu Watanabe [Fri, 6 Jun 2025 16:55:21 +0000 (01:55 +0900)]
run: ignore bus connection error in acquiring invocation ID (#37763)
This introduce bus_error_is_connection(), and use it where applicable.
Then, this makes connection errors in acquiring invocation ID by
systemd-run handled gracefully, like we already do other places.
Yu Watanabe [Fri, 6 Jun 2025 12:14:20 +0000 (21:14 +0900)]
sd-device: replace '!' with '/' before calling sd_device_new_from_subsystem_sysname()
Device ID uses device directory name as is, hence may contain '!', but
sd_device_new_from_subsystem_sysname() expects that the input is sysname.
So, we need to replace '!' with '/'.
repart: try harder to find verity-sig partitions for CopyBlocks=auto
verity-sig partitions are not kernel concepts, hence dm-verity won't
link them for us from the slaves/ subdir in sysfs. Hence let's instead
look up the partition via udev's database.
Hence: when we search for the data+verity+verity-sig partitions then
search for the first two as usual, but search for the latter by looking
up the udev props on the first two, and then following the paths
provided therein.
udev: add udev properties that point to verity/verity sig metadata partitions from data partitions
This extends the dissect_image builtin to actually add device node
references to the device nodes where the associated data is placed, if
we can find it.
This is kept very generic, and independent from the roothash properties
and suchlike, since it makes sense to make it possible to set these
properties also independently of the dissect-image builtin.
The device path is a /dev/disk/by-diskseq/ symlink, so that we have
stable reference that are not subject to dev_t reuses.
And rework partition_designator_is_verity_sig() to be based on
partition_verity_sig_to_data(), so that we don't have to maintain two
lists of verity sig partition types.
Yu Watanabe [Fri, 6 Jun 2025 10:12:48 +0000 (19:12 +0900)]
sd-lldp-rx: add VLAN ID parsing (#37725)
While the `port_vlan_id` field was already present in the
`sd_lldp_neighbor`, it wasn't currently parsed from the LLDP packet.
Added support for that as well as a small parsing test.
journal: replace a bunch of assert() with friendlier checks
We should not rely that data stored in the journal files remains
entirely untouched at all times. Because we unallocate files, data might
go away any time. Hence, never assert() on any expectations on what the
file contains. Instead, handle it more gracefully as a corruption issue,
and return EBADMSG.
This is just paranoia: let's determine the compression to use once,
instead of twice, after all te data is in journal files which might be
corrupted any time, and it would be weird if we came to different
results here each time.
journal: use EBADMSG for invalid data in file mmap
We must assume that any data in the mmap can change anytime because the
file is deallocated or similar. Let's strictly use EBADMSG for reporting
invalid file contents though (as opposed to using EINVAL if our own code
passes a wrong parameter somwhere).
Daan De Meyer [Thu, 5 Jun 2025 10:14:45 +0000 (12:14 +0200)]
meson: Don't fail install script if file doesn't exist
Depending on which optional features are enabled, the NSS module
might not have been built, which means the custom install script
will fail to remove the file. Let's pass -f so it succeeds regardless
of whether the file exists or not.
We allow omission of the part before and the part after the @. But so
far we didn't allow omitting both. There's no real reason for
disallowing that, hence be systematic and allow it.
journalctl: politely refuse if non-root usernames are specified for --machine=
We currently cannot support that (supporting that would probably require
some active component in the machine, or alternatively idmapped mounts
or so), hence politely refuse it.
run: chop off username from --machine= argument before calling OpenMachinePTY()
Let's be compatible with sd-bus' logic to talk to machine, and support
the usual user@host syntax. We only want the host part, hence chop if
off before passing it to OpenMachinePTY().
machined: open up OpenMachinePTY() for unpriv clients
The method call already does a PK check, it was just forgotten to
allowlist this in the dbus policy. And in the dbus vtable for
OpenMachinePTY() call. (It was allowlisted in the per-machine
vtable…)
core: Make sure we handle DelegateSubgroup= in combo with cgroupns
Currently, if we use a cgroup namespace together with DelegateSubgroup=,
the subgroup becomes the root of the cgroup namespace because we move the
service process to the subgroup before we unshare the cgroup namespace, and
the current cgroup becomes the root of the cgroup namespace when we unshare
the cgroup namespace.
Let's fix the problem by not moving the service process to the subgroup until
we've unshared the cgroup namespace. Note that this doesn't break the primary use
case of CLONE_INTO_CGROUP since we still use it to immediately clone into the service
main cgroup, just not anymore into the subgroup, but this shouldn't matter in practice.
Additionally, we need special handling for control processes, as those *do*
need to get spawned into the subcgroup immediately if delegation is configured to
avoid violating the cgroupsv2 "no inner processes" rule.
Effectively, this leaves us with the following logic:
- In exec_spawn(), spawn into subgroup if we're spawning a control process
that needs to be spawned into a subgroup immediately. Otherwise, spawn into
main service cgroup.
- In exec_invoke(), move into subgroup early if we don't need a cgroup namespace.
Otherwise, move into subgroup after we've unshared the cgroup namespace.
Daan De Meyer [Thu, 5 Jun 2025 09:04:06 +0000 (11:04 +0200)]
meson: Remove unnecessary deps from libsystemd-static build
blkid, libmount and openssl are not used in src/basic or src/libsystemd,
and so shouldn't be required as deps of libsystemd static, so let's drop
them.
Mike Yuan [Sun, 1 Jun 2025 07:12:13 +0000 (09:12 +0200)]
sd-daemon: add sd_pidfd_get_inode_id()
We nowadays expose pidfdid at various places, e.g. envvars
and dbus properties. Also the sd_notify() MAINPID= message
has been complemented with MAINPIDFDID=. But acquiring
pidfdid is actually non-trivial especially considering
the 32-bit case, hence let's introduce a public helper
in sd-daemon specifically for that purpose.
Mike Yuan [Sun, 1 Jun 2025 06:55:50 +0000 (08:55 +0200)]
pidfd-util: open an internal pidfd if none is passed in pidfd_check_pidfs()
I'd like to introduce a libsystemd helper for acquiring pidfd
inode id, which however means the fd passed to pidfd_check_pidfs()
can no longer be trusted. Let's add back the logic of allocating
a genuine pidfd allocated internally, which was remove in 5dc9d5b4eacbe32f58ad6ca18d70931ab89ea409.