units: drop After=systemd-networkd.service from systemd-resolved.service
This ordering existed since resolved was first created, but there should
not be any need to order the two services against each other, as
resolved should be able to pick up networkd DNS metadata either way (as
it works with inotify in /run).
Let's drop this hence, and not cargo-cult this to eternity
Also see: https://github.com/systemd/systemd/pull/22389#issuecomment-1045978403
Frantisek Sumsal [Tue, 22 Feb 2022 13:43:40 +0000 (14:43 +0100)]
ci: fix clang-13 installation
For some reason Ubuntu Focal repositories now have `llvm-13` virtual
package which can't be installed, but successfully fools our check,
resulting in no clang/llvm being installed...
```
$ apt show llvm-13
Package: llvm-13
State: not a real package (virtual)
N: Can't select candidate version from package llvm-13 as it has no candidate
N: Can't select versions from package 'llvm-13' as it is purely virtual
N: No packages found
$ apt install --dry-run llvm-13
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package llvm-13 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'llvm-13' has no installation candidate
```
Let's split out the inner parts of verb_daemon_reload() as a function
daemon_reload() and then stop using the former outside of the verbs
logic, and instead call the latter whenever we need to reload the daemon
as auxiliary opeation.
This should make our logic more systematic as we don't have to provide
fake or misleading argc/argv to verb_daemon_reload() anymore.
Yu Watanabe [Sun, 20 Feb 2022 02:46:16 +0000 (11:46 +0900)]
network: dhcp-pd: allow to assign the same subnet prefix to multiple interfaces
There is no reason networkd refuses that. Especially, when multiple
downstream interfaces are connected to the same network, it is natural to
assign the same subnet prefix to them.
Franck Bui [Fri, 18 Feb 2022 09:06:24 +0000 (10:06 +0100)]
core: really skip automatic restart when a JOB_STOP job is pending
It's not clear why we rescheduled a service auto restart while a stop job for
the unit was pending. The comment claims that the unit shouldn't be restarted
but the code did reschedule an auto restart meanwhile.
In practice that was rarely an issue because the service waited for the next
auto restart to be rescheduled, letting the queued stop job to be proceed and
service_stop() to be called preventing the next restart to complete.
However when RestartSec=0, the timer expired right away making PID1 to
reschedule the unit again, making the timer expired right away... and so
on. This busy loop prevented PID1 to handle any queued jobs (and hence giving
no chance to the start rate limiting to trigger), which made the busy loop last
forever.
This patch breaks this loop by skipping the reschedule of the unit auto restart
and hence not depending on the value of u->restart_usec anymore.
analyze: systematically name verb entry point functions verb_xyz()
Some of the functions so far were named do_xyz(), others dump_xyz() and
even others test_xyz(). let's instead name them exactly like the verb
exposed in the command line, just prefixed with verb_
analyze: split out "verify" verb into own .c/.h file
This renames the old analyze-verify.[ch] pair →
analyze-verify-util.[ch], because it's used by the test logic as well,
and by keeping it separate from the verify verb logic we don't have to
import the arg_xyz variables.
env-util: replace unsetenv_erase() by new getenv_steal_erase() helper
The new helper combines a bunch of steps every invocation of
unsetenv_erase() did so far: getenv() + strdup() + unsetenv_erase().
Let's unify this into one helper that is harder to use incorrectly. It's
in inspired by TAKE_PTR() in a way: get the env var out and invalidate
where it was before.
Luca Boccassi [Fri, 18 Feb 2022 22:56:56 +0000 (22:56 +0000)]
mkosi CI: mask isc-dhcp-server units
The packages are installed to provide the dhcpd binary, used by
test/test-network/systemd-networkd-tests.py, but we don't need the units
to run, and in fact in some cases the image fails to boot because of
them:
Spawning container image on /home/runner/work/systemd/systemd/image.raw.
Press ^] three times within 1s to kill container.
● isc-dhcp-server.service loaded failed failed ISC DHCP IPv4 server
● isc-dhcp-server6.service loaded failed failed ISC DHCP IPv6 server
Container image failed with error code 1.
Error: Process completed with exit code 1.
Frantisek Sumsal [Fri, 18 Feb 2022 22:09:18 +0000 (23:09 +0100)]
systemctl: make `--timestamp=` affect the `show` verb as well
Currently the `--timestamp=` option has no effect on timestamps shown by
`systemctl show`, let's fix that.
Spotted in #22567.
Before:
```
$ systemctl show --timestamp=us+utc systemd-journald | grep Timestamp=
ExecMainStartTimestamp=Sat 2021-12-11 15:25:57 CET
StateChangeTimestamp=Sat 2021-12-11 15:25:57 CET
InactiveExitTimestamp=Sat 2021-12-11 15:25:57 CET
ActiveEnterTimestamp=Sat 2021-12-11 15:25:57 CET
ActiveExitTimestamp=Sat 2021-12-11 15:25:57 CET
InactiveEnterTimestamp=Sat 2021-12-11 15:25:57 CET
ConditionTimestamp=Sat 2021-12-11 15:25:57 CET
AssertTimestamp=Sat 2021-12-11 15:25:57 CET
```
After:
```
$ systemctl show --timestamp=us+utc systemd-journald | grep Timestamp=
ExecMainStartTimestamp=Sat 2021-12-11 14:25:57.177848 UTC
StateChangeTimestamp=Sat 2021-12-11 14:25:57.196714 UTC
InactiveExitTimestamp=Sat 2021-12-11 14:25:57.177871 UTC
ActiveEnterTimestamp=Sat 2021-12-11 14:25:57.196714 UTC
ActiveExitTimestamp=Sat 2021-12-11 14:25:57.144677 UTC
InactiveEnterTimestamp=Sat 2021-12-11 14:25:57.176331 UTC
ConditionTimestamp=Sat 2021-12-11 14:25:57.176980 UTC
AssertTimestamp=Sat 2021-12-11 14:25:57.176980 UTC
resolved: rework how we reply to D-Bus messages for resolution requests
This reworks how we reply to D-Bus messages that come in for resolution
requests. Previously, we'd store them in the .bus_request field of
the main DnsQuery (but not any auxiliary one), and reply to it whenever
we had something to reply. In error paths this could mean we'd
accidentally reply twice.
This cleans this logic up: whenever we reply to a message we'll now go up
the tree of auxiliary queries, to find the primary query, i.e. the one
we actually want to reply to. Once we found it, we take out the bus
message object, resetting it to NULL. This way we can be sure we'll
reply at most once to each message.
pid1: set SYSTEMD_NSS_DYNAMIC_BYPASS=1 env var for dbus-daemon
There's currently a deadlock between PID 1 and dbus-daemon: in some
cases dbus-daemon will do NSS lookups (which are blocking) at the same
time PID 1 synchronously blocks on some call to dbus-daemon. Let's break
that by setting SYSTEMD_NSS_DYNAMIC_BYPASS=1 env var for dbus-daemon,
which will disable synchronously blocking varlink calls from nss-systemd
to PID 1.
In the long run we should fix this differently: remove all synchronous
calls to dbus-daemon from PID 1. This is not trivial however: so far we
had the rule that synchronous calls from PID 1 to the dbus broker are OK
as long as they only go to interfaces implemented by the broke itself
rather than services reachable through it. Given that the relationship
between PID 1 and dbus is kinda special anyway, this was considered
acceptable for the sake of simplicity, since we quite often need
metadata about bus peers from the broker, and the asynchronous logic
would substantially complicate even the simplest method handlers.
This mostly reworks the existing code that sets SYSTEMD_NSS_BYPASS_BUS=
(which is a similar hack to deal with deadlocks between nss-systemd and
dbus-daemon itself) to set SYSTEMD_NSS_DYNAMIC_BYPASS=1 instead. No code
was checking SYSTEMD_NSS_BYPASS_BUS= anymore anyway, and it used to
solve a similar problem, hence it's an obvious piece of code to rework
like this.
Issue originally tracked down by Lukas Märdian. This patch is inspired
and closely based on his patch:
pid1: lookup owning PID of BusName= name of services asynchronously
A first step of removing blocking calls to the D-Bus broker from PID 1.
There's a lot more to got (i.e. grep src/core/ for sd_bus_creds
basically), but it's a start.
Removing blocking calls to D-Bus broker deals systematicallly with
deadlocks caused by dbus-daemon blocking on synchronous IPC calls back
to PID1 (e.g. Varlink calls through nss-systemd). Bugs such as #15316.
Previously we'd only watch configured service bus names if Type=dbus was
set. Let's also watch it for other types. This is useful to pick up the
main PID of such a service. In fact the code to pick it up was already
in place, alas it didn't do anything given the signal was never received
for it. Fix that.
hwdb: 60-keyboard: Support the buttons on CZC P10T tablet
The machine has tree buttons connected to an EC that acts as a regular
AT-compatible keyboard controller. It can be either in "Windows 7" or
"Android" mode. It boots up with the earlier, but the Android build on
the tablet switches it on bootup (Windows presumably leaves it as-is).
The "Windows 7" mode, the behavior is very inconvenient: the Home button
emits multiple key presses that presumably do something in Windws 7 while
the second button toggles the RF Kill Switch in addition to producing a
scancode (it's labeled "Back" on Android version of the tablet).
The "Android" mode just sends the good ol' scan codes and this patch
handles them. On mainline Linux, the "x86-android-tablets" driver makes
sure we're in the correct mode.
Daan De Meyer [Thu, 17 Feb 2022 15:41:58 +0000 (15:41 +0000)]
mkosi: Add more packages required to run systemd-networkd-tests.py
Let's also add the required packages to run systemd-networkd-tests.py
for Ubuntu and Debian. The Fedora and Arch lists are also updated to
include python which is also required to run the tests.
logind: fix bool/int confusion for KillUserProcesses bus property
sd-bus for compat with old C expects "int" for booleans. Internally we
prefer to use C99 "bool" however. When pointing a pointer to it, we need
to handle the fact that they are typically differently sized, hence use
te right accessors for it.
logind: fix internal types used for EnableWallMessages
The value is used as a boolean, but stored in an unsigned. It's exposed
with sd-bus default boolean handling which however expects a (signed)
int. Let's clear this up, and use "bool" for this everywhere in
non-local scope, and make sure that when we pass it to sd-bus we
properly pass an "int".