Hardware addresses come in various shapes and sizes, these new functions
and accomapying data structures account for that instead of hard-coding
a hardware address to the 6 bytes of an ethernet MAC.
The link state file is always removed when networkd is stopping. So,
the deserialization logic does not work. Moreover, the ADDRESSES=
entry is not used by sd-network, so serialization is also not necessary.
The link state file is always removed on stop. So, we cannot deserialize
the address from the file. Moreover, currently the IPv4 link-local address
is always dropped by link_drop_foreign_addresses() on restart. Let's
drop the serialize/deserialize logic for IPv4 LL address.
Previously, the address was taken from the state file, but DHCP4_ADDRESS=
entry was dropped by 46986251d6.
Moreover, the link state file is always removed when networkd is
stopping. Let's take the address from the list of enumerated addresses.
Ideally, we'd read back what we wrote, but that would have been
much more complicated. But just writing stuff is useful to test under
valgrind or manually.
We had two of each: both homectl and journalctl had the whole dlopen()
wrapper, and journalctl had two implementations (slightly different) of the
code to print the fss:// pattern.
print_qrcode() now returns -EOPNOTSUPP when compiled with qrcode support. Both
callers ignore the return value, so this changes nothing.
No functional change.
This adds a way to control SO_TIMESTAMP/SO_TIMESTAMPNS socket options
for sockets PID 1 binds to.
This is useful in journald so that we get proper timestamps even for
ingress log messages that are submitted before journald is running.
We recently turned on packet info metadata from PID 1 for these sockets,
but the timestamping info was still missing. Let's correct that.
Let's not have #ifdeffery both in the consumers and the providers of the
selinux glue code. Unless the code is particularly complex, let's do the
ifdeffery only in the provider of the selinux glue code, and let's keep
the consumers simple and just invoke it.
So far half of sd_event_source_set_enabled() was doing enabling, the
other half was doing disabling. Let's split that into two separate
calls.
(This also adds a new shortcut to sd_event_source_set_enabled(): if the
caller toggles between "ON" and "ONESHOT" we'll now shortcut this, since
the event source is already enabled in that case and shall remain
enabled.)
This heavily borrows and is inspired from Michal Sekletár's #17284
refactoring.
We typically don't just reshuffle a single prioq at once, but always
two. Let's add two helper functions that do this, and reuse them
everywhere.
(Note that this drops one minor optimization:
sd_event_source_set_time_accuracy() previously only reshuffled the
"latest" prioq, since changing the accuracy has no effect on the
earliest time of an event source, just the latest time an event source
can run. This optimization is removed to simplify things, given that
it's not really worth the effort as prioq_reshuffle() on properly
ordered prioqs has practically zero cost O(1)).
(Slightly generalized, commented and split out of #17284 by Lennart)
This reverts commit 6c5496c492.
sysinit.target is shared between the initrd and the host system. Pulling in
initrd-cryptsetup.target into sysinit.target causes the following warning at
boot:
Oct 27 10:42:30 workstation-uefi systemd[1]: initrd-cryptsetup.target: Starting requested but asserts failed.
Oct 27 10:42:30 workstation-uefi systemd[1]: Assertion failed for initrd-cryptsetup.target.
If processes remain in the unit's cgroup after the final SIGKILL is
sent and the unit has exceeded stop timeout, don't release the unit's
cgroup information. Pid1 will have failed to `rmdir` the cgroup path due
to processes remaining in the cgroup and releasing would leave the cgroup
path on the file system with no tracking for pid1 to clean it up.
Instead, keep the information around until the last process exits and pid1
sends the cgroup empty notification. The service/scope can then prune
the cgroup if the unit is inactive/failed.
Ubuntu builds on the Launchpad infrastructure run inside a chroot that does
not have the sysfs cgroup dirs mounted, so this call will return ENOMEDIUM
from cg_unified_cached() during the build-time testing, for example when
building the package in a Launchpad PPA.
This effectively reverts the commit 22fc2420b2.
The function `asynchronous_close()` confuses valgrind. Before this commit,
valgrind may report the following:
```
HEAP SUMMARY:
in use at exit: 384 bytes in 1 blocks
total heap usage: 4,787 allocs, 4,786 frees, 1,379,191 bytes allocated
384 bytes in 1 blocks are possibly lost in loss record 1 of 1
at 0x483CAE9: calloc (vg_replace_malloc.c:760)
by 0x401456A: _dl_allocate_tls (in /usr/lib64/ld-2.31.so)
by 0x4BD212E: pthread_create@@GLIBC_2.2.5 (in /usr/lib64/libpthread-2.31.so)
by 0x499B662: asynchronous_job (async.c:47)
by 0x499B7DC: asynchronous_close (async.c:102)
by 0x4CFA8B: client_initialize (sd-dhcp-client.c:696)
by 0x4CFC5E: client_stop (sd-dhcp-client.c:725)
by 0x4D4589: sd_dhcp_client_stop (sd-dhcp-client.c:2134)
by 0x493C2F: link_stop_clients (networkd-link.c:620)
by 0x4126DB: manager_free (networkd-manager.c:867)
by 0x40D193: manager_freep (networkd-manager.h:97)
by 0x40DAFC: run (networkd.c:20)
LEAK SUMMARY:
definitely lost: 0 bytes in 0 blocks
indirectly lost: 0 bytes in 0 blocks
possibly lost: 384 bytes in 1 blocks
still reachable: 0 bytes in 0 blocks
suppressed: 0 bytes in 0 blocks
For lists of detected and suppressed errors, rerun with: -s
ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)
```
This reverts commit b45c068dd8.
I think the idea was generally sound, but didn't take into account the
limitations of show-environment and how it is used. People expect to be able to
eval systemctl show-environment output in bash, and no escaping syntax is
defined for environment *names* (we only do escaping for *values*). We could
skip such problematic variables in 'systemctl show-environment', and only allow
them to be inherited directly. But this would be confusing and ugly.
The original motivation for this change was that various import operations
would fail. a4ccce22d9 changed systemctl to filter
invalid variables in import-environment.
https://gitlab.gnome.org/GNOME/gnome-session/-/issues/71 does a similar change
in GNOME. So those problematic variables should not cause failures, but just
be silently ignored.
Finally, the environment block is becoming a dumping ground. In my gnome
session 'systemctl show-environment --user' includes stuff like PWD, FPATH
(from zsh), SHLVL=0 (no idea what that is). This is not directly related to
variable names (since all those are allowed under the stricter rules too), but
I think we should start pushing people away from running import-environment and
towards importing only select variables.
https://github.com/systemd/systemd/pull/17188#issuecomment-708676511
This changes the default from putting all units into the root slice to
placing them into the app slice in the user manager. The advantage is
that we get the right behaviour in most cases, and we'll need special
case handling in all other cases anyway.
Note that we have currently defined that applications *should* start
their unit names with app-, so we could also move only these by creating
a drop-in for app-.scope and app-.service.
However, that would not answer the question on how we should manage
session.slice. And we would end up placing anything that does not fit
the system (e.g. anything started by dbus-broker currently) into the
root slice.
These should not be bundled into the link_up() operation, as that is
not (currently) called during interface configuration if the interface
already is IFF_UP, which is unrelated to the need to change the mac
to a user-defined value, or set 'nomaster' on the interface.
Additionally, there is no need to re-set the mac or re-assert nomaster
every time the interface is brought up; those should be only part of
normal initial interface configuration.
Fixes: #17391
Timo Rothenpieler
Yu Watanabe
Lennart Poettering
Zbigniew Jędrzejewski-Szmek
Michal Sekletár
Anita Zhang
Pat Coulthard
Dan Streetman
Benjamin Berg