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Commit Graph

1269 Commits

Author SHA1 Message Date
Yu Watanabe
0ce8a9d6e5
Merge pull request #16939 from Rahix/robust-first-boot-machine-id
Make ConditionFirstBoot safe against power failures
2020-10-20 14:01:41 +09:00
Yu Watanabe
4b28e50f9e
Merge pull request #17390 from keszybz/logind-notifications-and-links
Fix sd_notify() usage in various daemons and update some documentation links
2020-10-20 13:44:52 +09:00
Harald Seiler
3af54f9bbe units: order systemd-random-seed.service before first-boot-complete.target
Ensure that systemd-random-seed.service has completed before marking
a first boot as completed to guarantee that a saved seed will only be
used after it has been initialized at least once.
2020-10-19 16:28:22 +02:00
Harald Seiler
a1e3787148 units: order systemd-firstboot.service before first-boot-complete.target
Make sure systemd-firstboot completes before reaching first-boot-complete.target
and thus marking the first boot as completed.  This way, it is
guaranteed that systemd-firstboot has a chance to complete provisioning
at least once, even in cases of the first boot getting aborted early.
2020-10-19 16:28:22 +02:00
Harald Seiler
f4466bdbf9 units: add first-boot-complete.target for first boot ordering
Add a new target for synchronizing units that wish to run once during
the first boot of the system.  The machine-id will be committed to disk
only after the target has been reached, thus ensuring that all units
ordered before it had a chance to complete.
2020-10-19 16:28:22 +02:00
Zbigniew Jędrzejewski-Szmek
515736d0f3 tree-wide: update web link to logind description
https://www.freedesktop.org/wiki/Software/systemd/multiseat/ says that it
is obsoleted by sd-login(3), so it doesn't make much sense to link to the former.
2020-10-19 15:23:37 +02:00
Anita Zhang
32ae9b1400 units: drop ConditionCapability from systemd-oomd.service
Another suggestion from #15206
2020-10-19 02:46:07 -07:00
Zbigniew Jędrzejewski-Szmek
69c0807432
Merge pull request #15206 from anitazha/systoomd-v0
systemd-oomd
2020-10-15 14:16:52 +02:00
Bjørn Mork
7fe7547ba3 units: update serial-getty@.service to support 57600 baud rate
Fixes: #17306
2020-10-13 21:00:11 +02:00
Anita Zhang
87e2bafff9 systemd-oomd: service files 2020-10-07 17:12:24 -07:00
Lennart Poettering
d1f6e01e47 homed: explicitly deactivate all home directories on shutdown
Let's explicitly deactivate all home dirs on shutdown, in order to
properly synchronizing unmounting and avoiding blocking devices.

Previously, we'd rely on automatic deactivation when home directories
become unused. However, that scheme is asynchronous, and ongoing
deactviations might conflicts with attempts to unmount /home. Let's fix
that by providing an explicit service systemd-homed-activate.service
whose only job is to have a ExecStop= line that explicitly deactivates
all home directories on shutdown. This service can the be ordered after
home.mount and similar, ensuring that we'll first deactivate all homes
before deactivating /home itself during shutdown.

This is kept separate from systemd-homed.service so that it is possible
to restart systemd-homed.service without deactivating all home
directories.

Fixes: #16842
2020-09-30 14:37:52 +02:00
Zbigniew Jędrzejewski-Szmek
21006e0e3e man,units: link to the new dbus-api man pages 2020-09-30 10:30:03 +02:00
Lennart Poettering
c9ef77ec5f units: pass CAP_SYS_RESOURCE to homed
The ext4 fs resize ioctl needs CAP_SYS_RESOURCE, irritatingly. Let's
grant it to homed hence.

Fixes: #15115
2020-09-18 22:35:36 +02:00
Zbigniew Jędrzejewski-Szmek
452d2dfd52 meson: RC_LOCAL_SCRIPT_PATH_START to RC_LOCAL_PATH
RC_LOCAL_SCRIPT_PATH_START and RC_LOCAL_SCRIPT_PATH_STOP were was originally
added in the conversion to meson based on the autotools name. In
4450894653 RC_LOCAL_SCRIPT_PATH_STOP was dropped.
We don't need to use such a long name.
2020-09-15 17:44:26 +02:00
Lennart Poettering
e67b818c2f unit: declare BusName= in all our units that are on the bus, event if they don't use Type=dbus
This information is always useful, so let's always declare it,
particular in the light of #16976.
2020-09-11 16:01:22 +02:00
Michael Biebl
9654645b62
Merge pull request #16850 from mbiebl/networkd-socket-activation
networkd: use socket activation when starting networkd
2020-08-29 16:12:46 +02:00
Kyle Russell
dd05042039 units: add missing usb-gadget.target 2020-08-28 18:57:58 +02:00
Michael Biebl
2c0dffe82d networkd: use socket activation when starting networkd
Add After=systemd-networkd.socket to avoid a race condition and networkd
falling back to the non-socket activation code.

Also add Wants=systemd-networkd.socket, so the socket is started when
networkd is started via `systemctl start systemd-networkd.service`.
A Requires is not strictly necessary, as networkd still ships the
non-socket activation code. Should this code be removed one day, the
Wants should be bumped to Requires accordingly.

See also 5544ee8516.

Fixes: #16809
2020-08-26 16:54:45 +02:00
Lennart Poettering
24da96a1bd units: turn on ProtectProc= wherever suitable 2020-08-24 20:11:14 +02:00
Lennart Poettering
7e31e90e58 units: order volatile-root after repart
Let's make sure systemd-repart can still see the real device before we
replace its mount with an overlay mount, and thus order repart before
volatile-root.

See: https://lists.freedesktop.org/archives/systemd-devel/2020-July/044896.html
2020-08-11 09:12:56 +02:00
Lennart Poettering
bbac7da2b3 units: order systemd-user-sessions.service after home.mount
This should make /home as automount work reasonably well.

If /home is an automount this has little effect at boot, because if the
automount is not triggered it doesn't matter how the associated mount is
ordered.

It does matter at shutdown however, where home.mount is likely active
now. There the ordering means we'll end sessions first, and only then
deactivate home.mount.

Fixes: #16291
2020-08-07 10:02:05 +02:00
Lennart Poettering
b89f5f7b03 units: downgrade Requires= to Wants=
Combining Requires= with Before= doesn't really make sense, since this
means we are requiring something that runs after us, which logically
cannot be fulfilled.

Let's hence downgrade Requires= to Wants= so that the ordering is kept
but no failure propagation implied.
2020-07-29 16:32:45 +02:00
Lennart Poettering
78490efca3 units: upgrade initrd check Conditions to Asserts
It's a bug if an initrd unit is run on the host. Hence let's upgrade the
conditions to asserts.
2020-07-29 16:32:03 +02:00
Zbigniew Jędrzejewski-Szmek
362a55fc14 Bump /tmp size back to 50% of RAM
This should be enough to fix https://bugzilla.redhat.com/show_bug.cgi?id=1856514.
But the limit should be significantly higher than 10% anyway. By setting a
limit on /tmp at 10% we'll break many reasonable use cases, even though the
machine would deal fine with a much larger fraction devoted to /tmp.
(In the first version of this patch I made it 25% with the comment that
"Even 25% might be too low.". The kernel default is 50%, and we have been using
that seemingly without trouble since https://fedoraproject.org/wiki/Features/tmp-on-tmpfs.
So let's just make it 50% again.)

See 7d85383edb.

(Another consideration is that we learned from from the whole initiative with
zram in Fedora that a reasonable size for zram is 0.5-1.5 of RAM, and that pretty
much all systems benefit from having zram or zswap enabled. Thus it is reasonable
to assume that it'll become widely used. Taking the usual compression effectiveness
of 0.2 into account, machines have effective memory available of between
1.0 - 0.2*0.5 + 0.5 = 1.4 (for zram sized to 0.5 of RAM) and
1.0 - 0.2*1.5 + 1.5 = 2.2 (for zram 1.5 sized to 1.5 of RAM) times RAM size.
This means that the 10% was really like 7-4% of effective memory.)

A comment is added to mount-util.h to clarify that tmp.mount is separate.
2020-07-29 11:07:04 +02:00
Zbigniew Jędrzejewski-Szmek
74c8e3c4e0 Revert "units: drop OnFailure= from .target units"
This reverts commit c7220ca802.

The removal was done as a reaction to the messages from systemd:
initrd-root-fs.target: Requested dependency OnFailure=emergency.target ignored (target units cannot fail).
initrd.target: Requested dependency OnFailure=emergency.target ignored (target units cannot fail).
initrd-root-device.target: Requested dependency OnFailure=emergency.target ignored (target units cannot fail).
initrd-fs.target: Requested dependency OnFailure=emergency.target ignored (target units cannot fail).
local-fs.target: Requested dependency OnFailure=emergency.target ignored (target units cannot fail).
...
But it seems that the messages themselves are wrong, and the units were OK.
2020-07-22 17:58:12 +02:00
Norbert Lange
55678b9eae build: skip installation of 2 files if feature is disabled
dont install systemd-update-utmp if utmp is disabled.
dont install systemd-initctl.service if sysv is disabled.
2020-07-18 13:50:39 +09:00
Lennart Poettering
048b4dc2e1 units: tweak udev unit descriptions 2020-06-08 16:53:37 +02:00
Zbigniew Jędrzejewski-Szmek
41a7c3bf5d units: uppercase the description
https://github.com/systemd/systemd/pull/15982#pullrequestreview-422536495
2020-06-02 14:14:20 +02:00
Zbigniew Jędrzejewski-Szmek
d1109e12c0 udevd: update snippet string
Repeating the unit name in the description is not useful, and "manages devices"
is too cryptic.
2020-05-30 17:15:20 +02:00
Yu Watanabe
27cd09442f
Merge pull request #15942 from poettering/pass-pktinfo
disable PassCredentials= on networkd netlink socket, enable NETLINK_PKTINFO instead
2020-05-29 15:23:15 +09:00
Lennart Poettering
871dc8d644 homed: enable userdb too if homed is requested
Strictly speaking you can run homed without userdb. But it doesn't
really make much sense: they go hand in hand and implement the same
concepts, just for different sets of users. Let's hence disable both
automatically by default if homed is requested.

(We don't do the reverse: opting into userdbd shouldn't mean that you
are OK with homed.)

And of course, users can always deviate from our defaults easily, and
turn off userbd again right-away if they don't like it, and things will
generally work.
2020-05-28 23:38:29 +02:00
Lennart Poettering
43007b302e networkd: clean up NETLINK_PKTINFO vs. SO_PASSCRED confusion
We actually care for NETLINK_PKTINFO, not for SO_PASSCRED, hence when
allocating the netlink socket, configure things accordingly.

Tracked down by Benjamin Robin, see:

https://github.com/systemd/systemd/pull/15571#issuecomment-633213747
2020-05-27 22:40:56 +02:00
Lennart Poettering
6bce17455e
Merge pull request #15226 from benzea/benzea/xdg-autostart-generator
xdg-autostart-generator: a generator for XDG autostart files
2020-05-27 18:41:01 +02:00
Benjamin Berg
8feca2472c xdg-autostart-generator: Add a generator for XDG autostart files
This generator can be used by desktop environments to launch autostart
applications and services. The feature is an opt-in, triggered by
xdg-desktop-autostart.target being activated.

Also included is the new binary xdg-autostart-condition. This binary is
used as an ExecCondition to test the OnlyShowIn and NotShowIn XDG
desktop file keys. These need to be evaluated against the
XDG_CURRENT_DESKTOP environment variable which may not be known at
generation time.

Co-authored-by: Henri Chain <henri.chain@enioka.com>
2020-05-27 09:02:10 +02:00
Lennart Poettering
021acbc188 units: remove KillMode=process in our regular gettys
In our regular gettys the actual shell commands live the the session
scope anyway (as long as logind is used). Hence, let's avoid
KillMode=process, it serves no purpose and is simply unsafe since it
disables systemd's own process lifecycle management.
2020-05-26 23:52:09 +02:00
Lennart Poettering
48432791ac units: don't set PrivateNetwork= in systemd-homed.service
We want to watch USB sticks being plugged in, and that requires
AF_NETLINK to work correctly and get the host's events. But if we live
in a network namespace AF_NETLINK is disconnected too and we'll not get
the host udev events.

Fixes: #15287
2020-05-26 23:37:44 +02:00
Lennart Poettering
7257f717c1
Merge pull request #15920 from keszybz/userwork-proc-title
Avoid log noise when setting proc titles and some doc updates
2020-05-26 18:29:06 +02:00
Norbert Lange
6589a56972 dont install systemd-initctl, runlevel, telinit if no SYSV compat
systemd-initctl executable is still built.
2020-05-26 15:04:36 +02:00
Zbigniew Jędrzejewski-Szmek
201632e314 tree-wide: s/time-out/timeout/g
See 3f9a0a522f for justification.
2020-05-26 10:28:59 +02:00
Norbert Lange
cdf7ad38b6 allow removal of initrd services 2020-05-19 10:19:18 +02:00
Topi Miettinen
7d85383edb tree-wide: add size limits for tmpfs mounts
Limit size of various tmpfs mounts to 10% of RAM, except volatile root and /var
to 25%. Another exception is made for /dev (also /devs for PrivateDevices) and
/sys/fs/cgroup since no (or very few) regular files are expected to be used.

In addition, since directories, symbolic links, device specials and xattrs are
not counted towards the size= limit, number of inodes is also limited
correspondingly: 4MB size translates to 1k of inodes (assuming 4k each), 10% of
RAM (using 16GB of RAM as baseline) translates to 400k and 25% to 1M inodes.

Because nr_inodes option can't use ratios like size option, there's an
unfortunate side effect that with small memory systems the limit may be on the
too large side. Also, on an extremely small device with only 256MB of RAM, 10%
of RAM for /run may not be enough for re-exec of PID1 because 16MB of free
space is required.
2020-05-13 00:37:18 +02:00
Zbigniew Jędrzejewski-Szmek
cd7e1e1a7f units: change description of systemd-logind.service
"Login Service" doesn''t explain much, esp. considering that logind is actually is
for logins. I think "User Login Management" is better, but not that great either.
Suggestions welcome.
2020-05-05 22:34:17 +02:00
Lennart Poettering
846acb6798 binfmt: also unregister binfmt entries from unit
We unregister binfmt_misc twice during shutdown with this change:

1. A previous commit added support for doing that in the final shutdown
   phase, i.e. when we do the aggressive umount loop. This is the robust
   thing to do, in case the earlier ("clean") shutdown phase didn't work
   for some reason.

2. This commit adds support for doing that when systemd-binfmt.service
   is stopped. This is a good idea so that people can order mounts
   before the service if they want to register binaries from such
   mounts, as in that case we'll undo the registration on shutdown
   again, before unmounting those mounts.

And all that, just because of that weird "F" flag the kernel introduced
that can pin files...

Fixes: #14981
2020-04-23 17:14:45 +02:00
Lennart Poettering
e46736fbb6 units: use correct path to refer to plymouth
This doesn't really matter, since in non-/usr-merged systems plymouth
needs to be in /bin and on merged ones it doesn't matter, but it is
still prettier to insert the right path, and avoid /bin on merged
systems, since it's just a compat symlink.

Replaces: #15351
2020-04-16 16:33:01 +02:00
Lennart Poettering
b0c1a07654 units: make sure systemd-pstore stops at shutdown
This doesn't matter too much given that the service doesn't do anything
on shutdown, but let's still stop it to make things cleaner.
2020-04-08 16:29:58 +02:00
Lennart Poettering
e0f968ad96 units: drop systemd-remount-fs.service dependency from more services
All services using StateDirectory= don't need the explicit dep anymore,
let's hence drop it everywhere.
2020-04-08 16:29:41 +02:00
Lennart Poettering
0c978faa16 units: drop dependency on systemd-remount-fs.service from systemd-pstore.service
This dependency is now generated automatically given we use
StateDirectory=. Moreover the combination of Wants= and After= was too
strong anway, as whether remount-fs is pulled in or not should not be up
to systemd-pstore.service, and in fact is part of the initial
transaction anyway.
2020-04-08 16:29:40 +02:00
Lennart Poettering
167241912f units: pull in systemd-pstore.service from sysinit.target
sysinit.target is the target our early boot services are generally
pulled in from, make systemd-pstore.service not an exception of that.

Effectively this doesn't mean much, either way our unit is part of the
initial transaction.
2020-04-08 16:29:24 +02:00
Topi Miettinen
cabc1c6d7a units: add ProtectClock=yes
Add `ProtectClock=yes` to systemd units. Since it implies certain
`DeviceAllow=` rules, make sure that the units have `DeviceAllow=` rules so
they are still able to access other devices. Exclude timesyncd and timedated.
2020-04-07 15:37:14 +02:00
Lennart Poettering
fdfe909123 units: run systemd-repart only if there's configuration for it 2020-04-02 17:07:48 +02:00