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People know what a qrcode is. We don't need to tell them to scan it.
Instead, we should say what the code contains.
While at it, rename "stream" to "f" in line with the usual style.
Let's ramp up security for system user accounts, at least where
possible, by creating them fully locked (instead of just with an invalid
password). This matters when taking non-password (i.e. SSH) logins into
account.
Fixes: #13522
We should avoid unnecessary abbreviations for such messages, and this
puts a maximum limit on things, hence it should indicate this in the
name.
Moreover, matches is a bit confusing, since most people will probably
call "busctl monitor" without any match specification, i.e. zero
matches, but that's not what was meant here at all.
Also, add a brief switch for this (-N) since I figure in particular
"-N1" might be a frequent operation people might want to use.
Follow-up for: 989e843e75
See: #34048
We are going to output a series of JSON objects, hence let's
automatically enable JSON-SEQ output mode, as we usually do.
"jq --seq" supports this natively, hence this should not really restrict
us.
Follow-up for: 67ea8a4c0e
This applies the existing SocketUser=/SocketGroup= options to units
defining a POSIX message queue, bringing them in line with UNIX
sockets and FIFOs. They are set on the file descriptor rather than
a file system path because the /dev/mqueue path interface is an
optional mount unit.
This commit adds two settings private and strict to
the ProtectControlGroups= property. Private will unshare the cgroup
namespace and mount a read-write private cgroup2 filesystem at /sys/fs/cgroup.
Strict does the same except the mount is read-only. Since the unit is
running in a cgroup namespace, the new root of /sys/fs/cgroup is the unit's
own cgroup.
We also add a new dbus property ProtectControlGroupsEx which accepts strings
instead of boolean. This will allow users to use private/strict via dbus
and systemd-run in addition to service files.
Note private and strict fall back to no and yes respectively if the kernel
doesn't support cgroup2 or system is not using unified hierarchy.
Fixes: #34634
Otherwise, ProtectHome=tmpfs makes /home/ and friends not read-only.
Also, mount options for /run/ specified in MountAPIVFS=yes are not
applied.
The function append_static_mounts() was introduced in
5327c910d2, but at that time, there were
neither .read_only nor .options in the struct. But, when later the
struct is extended, the function was not updated and they were not
copied from the static table.
The fields has been used in static tables since
e4da7d8c79, and also in
94293d65cd.
Fixes#34825.
Clients should be able to know if the idle logic is available on a
session without secondary knowledge about the session class. Let's hence
expose a property for that.
Similar for the screen lock concept.
Fixes: #34844
CNAME doesn't exist at the zone apex. When we get an unsigned noerror
response to a direct query for a CNAME record, we don't yet know if this
name is zone apex. We already request the correct DS record in this
case, but previously skipped it at validation time, causing the answer
to appear bogus. Make sure to also consider the DS record for the query
name for negative replies.
The structure of DNR options is considerably more complicated than most
DHCP options, and as a result the fuzzer has poor coverage of these code
paths.
This adds some DNR packets to the fuzzing corpus, not with the intent of
capturing some specific edge case, but with the intent to rapidly
improve the fuzzers' coverage of these codepaths by giving it a valid
example to begin with.
Also include an ndisc router advert with a few Encrypted DNS options,
for the same purpose.
Now that mkosi supports generating UKI profiles, let's make use of
that to generate the UKI profiles required for the test instead of
doing it within the test itself.
Otherwise, when the test is executed on a system with signed PCRs,
cryptenroll will automatically pick up the public key from the UKI
which results in a volume that can't be unlocked because the pcrextend
tests appends extra things to pcr 11.
As per spec image builders can create a local /etc/os-release
with per-image IDs, so modify that one instead of the original
one in /usr/lib. For example we do this when we build debian
unstable images in mkosi.
This will allow units (scopes/slices/services) to override the default
systemd-oomd setting DefaultMemoryPressureDurationSec=.
The semantics of ManagedOOMMemoryPressureDurationSec= are:
- If >= 1 second, overrides DefaultMemoryPressureDurationSec= from oomd.conf
- If is empty, uses DefaultMemoryPressureDurationSec= from oomd.conf
- Ignored if ManagedOOMMemoryPressure= is not "kill"
- Disallowed if < 1 second
Note the corresponding dbus property is DefaultMemoryPressureDurationUSec
which is in microseconds. This is consistent with other time-based
dbus properties.
Nested mounts should be carried over from host to overlayfs to overlayfs
(and back to host if unmerged). Otherwise you run into hard to debug
issues where merging extensions means you can't unmount those nested mounts
anymore as they are hidden by the overlayfs mount.
To fix this, before unmerging any previous extensions, let's move the nested
mounts from the hierarchy to the workspace, then set up the new hierachy, and
finally, just before moving the hierarchy into place, move the nested mounts
back into place.
Because there might be multiple nested mounts that consists of one or more
mounts stacked on top of each other, we make sure to move all stacked mounts
properly to the overlayfs. The kernel doesn't really provide a nice way to do
this, so we create a stack, pop off each mount onto the stack and then pop from
the stack again to the destination to re-establish the stacked mounts in the same
order in the destination.
'Default Memory Pressure Duration' field in oomctl, which can be configured
with DefaultMemoryPressureDurationSec= in oomd.conf, is a global config.
Let's check it earlier.
This also drops unnecessary cleanup at the beginning.
Fedora and friends has a drop-in config for the settings in
/usr/lib/systemd/user/slice.d/ . Hence, settings in the main .slice may be
overridden. Let's set below in a drop-in with higher decimal prefix.
Also, rename override.conf -> 99-managed-oom-preference.conf for the same reason.
- suppress unnecessary error messages, especially in loop and at_exit(),
- ensure the container service is stopped before restarting,
- do not send KILL signal, as garbages will remain, and disturb the next
invocation,
- drop unnecessary workaround of trying machine twice.
This also fixes the test for io.systemd.Machine.Terminate.
When systemd-nspawn@.service receives stop signal, then systemd-nspawn
sends SIGRTMIN+3 to the container, which was previously ignored by the
custom init script used by the container.
Let's introduce another trap for the signal, and correctly handle it.
Follow-up for 164af66f9a.
The family will be checked later in
address_section_verify() -> address_section_adjust_broadcast(),
hence it is not necessary to set here.
Follow-up for 5d15c7b19c.
Fixes oss-fuzz#372994449.
Fixes#34748.
This commit adds a corresponding integration test for ExtraFileDescriptors
after systemctl daemon-reexec. This ensures systemd keeps the file
descriptors while the service manager is restarting and we don't lose
ability to restart the service correctly.
Create a unit test for systemd timer DeferReactivation config option.
The test works by creating a timer which fires every 5 seconds and
starts an unit which runs for 5 seconds.
With DeferReactivation=true, the timer must fire every 5+5 seconds,
instead of the 5 it fires normally.
As we need at least two timer runs to check if the delta is correct,
the test duration on success will be at least 20 seconds.
To be safe, the test script waits 35 seconds: this is enough to get
at least three runs but low enough to avoid clogging the CI.
By default, in instances where timers are running on a realtime schedule,
if a service takes longer to run than the interval of a timer, the
service will immediately start again when the previous invocation finishes.
This is caused by the fact that the next elapse is calculated based on
the last trigger time, which, combined with the fact that the interval
is shorter than the runtime of the service, causes that elapse to be in
the past, which in turn means the timer will trigger as soon as the
service finishes running.
This behavior can be changed by enabling the new DeferReactivation setting,
which will cause the next calendar elapse to be calculated based on when
the trigger unit enters inactivity, rather than the last trigger time.
Thus, if a timer is on an realtime interval, the trigger will always
adhere to that specified interval.
E.g. if you have a timer that runs on a minutely interval, the setting
guarantees that triggers will happen at *:*:00 times, whereas by default
this may skew depending on how long the service runs.
Co-authored-by: Matteo Croce <teknoraver@meta.com>
On Ubuntu/Debian infrastructure QEMU crashes a lot, so mark the test
as skipped in that case as there's nothing we can do about it and
we shouldn't mark runs as failed
This adds the ExtraFileDescriptor property to StartTransient dbus API
with format "a(hs)" - array of (file descriptor, name) pairs. The FD
will be passed to the unit via sd_notify like Socket and OpenFile.
systemctl show also shows ExtraFileDescriptorName for these transient
units. We only show the name passed to dbus as the FD numbers will
change once passed over the unix socket and are duplicated, so its
confusing to display the numbers.
We do not add this functionality for systemd-run or general systemd
service units as it is not useful for general systemd services.
Arguably, it could be useful for systemd-run in bash scripts but we
prefer to be cautious and not expose the API yet.
Fixes: #34396
