It's not actually a dbus method, just function that all the various dbus
methods end up calling to update the user record. So rename it to
reflect as such
Currently, if a unit file is enabled from outside of the search path,
and that unit has an alias, then the symlink ends up pointing outside of
the search path too. For example:
$ cat /tmp/a.service
[Service]
ExecStart=sleep infinity
[Install]
Alias=b.service
WantedBy=multi-user.target
$ systemctl enable /tmp/a.service
Created symlink /etc/systemd/system/a.service → /tmp/a.service.
Created symlink /etc/systemd/system/b.service → /tmp/a.service.
Created symlink /etc/systemd/system/multi-user.target.wants/a.service → /tmp/a.service.
This then means the alias is treated as a separate unit:
$ systemctl start a.service
$ sudo systemctl status a
● a.service
Loaded: loaded (/etc/systemd/system/a.service; enabled; preset: enabled)
Active: active (running) since Fri 2024-03-15 15:17:49 EDT; 9s ago
Main PID: 769593 (sleep)
Tasks: 1 (limit: 18898)
Memory: 220.0K
CPU: 5ms
CGroup: /system.slice/a.service
└─769593 sleep infinity
Mar 15 15:17:49 six systemd[1]: Started a.service.
$ sudo systemctl status b
○ b.service
Loaded: loaded (/etc/systemd/system/b.service; alias)
Active: inactive (dead)
To fix this, make sure the alias uses a target that is inside the search
path. Since the unit file itself is outside of the search path, a
symlink inside the search path will have been created already. Hence,
just point the alias symlink to that recently created symlink.
In some cases when a query completes there are still pending
transactions that are no longer useful to answer the query. But if this
query is repeated in the future and we don't have the answers cached,
we're going to ask and ignore the answer again.
Instead of purging these superfluous transactions, let's wait and see if
they produce an answer, since we already asked the question, and use it
to fill our cache.
Currently the associated units fail if full tpm support is not available
on the system. Similar to systemd-pcrextend, let's add a --graceful option
that exits gracefully if no full TPM support is detected and use it in both
units.
The docs say that support is experimental, but it's better for us if we know
about any problems early.
Header tests pass without any issue with gcc-14.0.1-0.8.fc40.x86_64.
This also drop the support of /run/systemd/netif/persistent-storage-ready,
as the file is anyway removed when networkd is stopped.
Let's use $SYSTEMD_NETWORK_PERSISTENT_STORAGE_READY=1 instead on testing.
Useful information to have in the logs.
Mar 14 16:45:27 H systemd-portabled[510]: Successfully attached ephemeral '/usr/share/minimal_0.raw' and its extension(s) '/usr/share/app0.raw' using profile 'default'
Previously, if an [Address] section is configured with a null address,
e.g. Address=0.0.0.0/24, then we acquired a free address in
link_request_address().
With this commit, we queue a request with the null address as is, and
acquire a free address later in address_process_request(). Similary,
now IPv4ACD daemon is configured in address_process_request().
With this change, we can make the address acquisition depend on other
conditions, e.g. if the persistent storage is ready or not.
This introduces $SYSTEMD_KEYMAP_DIRECTORIES environment variable to
override the hardcoded keymap directories.
I think it is not necessary to provide the first class configuration
option for controlling the keymap directories, but it is not good to
hardcode the paths. So, let's introduce an environment variable to
override that.
Prompted by #31759.
Closes#31759.
Previously, it is assumed that the paths in KBD_KEYMAP_DIRS are ended
with a slash. But, in the next commit, paths will become controllable by
users, and each path may not be ended with a slash.
This should not change any effective behaviors.
Just refactoring and preparation.
Otherwise, even if the persistent storage is not ready, the DHCP server
may be started e.g. by unplugging and plugging cable.
Follow-up for 5582b36c38.
From the outside it's difficult to determine whether (and when) the PID1
inside a container supports systemd's more complete set of UNIX process
signals or not. Let's make this easier, and simply send a notification
message when we are ready.
This new passive target is supposed to be pulled in by SSH
implementations and should be reached when remote SSH access is
possible. The idea is that this target can be used as indicator for
other components to determine if and when SSH access is possible.
One specific usecase for this is the new sd_notify() logic in PID 1 that
sends its own supervisor notifications whenever target units are
reached. This can be used to precisely schedule SSH connections from
host to VM/container, or just to identify systems where SSH is even
available.
Let's inform the the supervisor about various happenings of our service
manager, specifically the boot milestones we reach.
We so far have only a singular READY=1 message, to inform about bootup
completion. But sometimes it is interesting to have something for
finegrained, in particular something that indicates optional components
that have been activated.
Usecase for this: in a later PR I intend to introduce a generic
"ssh.target" that is supposed to be activated when SSH becomes available
on a host. A supervisor (i.e. a VMM/hypervisor/container mgr/…) can
watch for that, and know two things:
1. that SSH is generally available in the system
2. when it is available
In order to not flood the supervisor with events I only send these out
for target units. We could open this up later, in theory, but I think it
makes sense to tell people instead to define clear milestone target
units if they want a supervisor to be able to track system state.
Similar as the previous commit, it's useful for a supervisor to know
what machine ID we settlted on, in particular as various other things
are deterministically derived from it, for example MAC addresses and
such.
once we decided on a hostname, let's tell the supervisor about it. This
is useful for example in order to recognize the system via mDNS/LLMNR or
in a DHCP lease.
Unique-Usman
Abraham Samuel Adekunle
Yu Watanabe
Adrian Vovk
Luca Boccassi
Ronan Pigott
Nick Rosbrook
Daan De Meyer
Zbigniew Jędrzejewski-Szmek
Lennart Poettering