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1115 Commits

Author SHA1 Message Date
Lennart Poettering
3f547ca5a6 units: fix Description= of systemd-exit.service
This file was probably copied from the --user version, let's use some
more appropriate wording for the --system version.
2018-11-16 12:25:35 +01:00
Lennart Poettering
9f782b3e1b units: use correct command to exit
Otherwise we'll end a cyclic loop.
2018-11-16 12:25:35 +01:00
Lennart Poettering
1795457f50 units: add the same ordering deps for systemd-exit.service as for systemd-poweroff.service and friends
This stuff runs in containers, and should really behave the same
everywhere.
2018-11-16 12:25:35 +01:00
Zbigniew Jędrzejewski-Szmek
28f38a7634 Revert "units: lock down logind with fs namespacing options" 2018-11-15 17:48:01 +03:00
Lennart Poettering
53a3e8fc7a
Merge pull request #10744 from poettering/logind-lock-down
units: lock down logind with fs namespacing options
2018-11-13 10:38:47 +01:00
Lennart Poettering
99cd001d4c units: also change portabled's syscall filter to a whitelist 2018-11-13 10:38:17 +01:00
Lennart Poettering
45ae3f6117 units: lock down systemd-logind.service with various fs namespacing options
now that logind doesn't mount $XDG_RUNTIME_DIR anymore we can lock down
the service using fs namespacing (as we don't need the mount to
propagate to the host namespace anymore).
2018-11-12 19:14:33 +01:00
Lennart Poettering
1bded6b28f logind: drop CAP_KILL from caps bounding set
logind doesn't kill any processes anymore, hence let's drop the
capability.
2018-11-12 19:05:36 +01:00
Lennart Poettering
3ca9940cb9 units: set NoNewPrivileges= for all long-running services
Previously, setting this option by default was problematic due to
SELinux (as this would also prohibit the transition from PID1's label to
the service's label). However, this restriction has since been lifted,
hence let's start making use of this universally in our services.

On SELinux system this change should be synchronized with a policy
update that ensures that NNP-ful transitions from init_t to service
labels is permitted.

An while we are at it: sort the settings in the unit files this touches.
This might increase the size of the change in this case, but hopefully
should result in stabler patches later on.

Fixes: #1219
2018-11-12 19:02:55 +01:00
Alan Jenkins
0ba8987337 units: remove unused busnames.target
I found zero references to busnames.target, using git grep "busnames".
(And we do not install using a wildcard units/*.*.  There is no
busnames.target installed on my Fedora 28 system).
2018-10-31 11:44:03 +01:00
Lennart Poettering
73f19ce1ae units: drop systemd-user-sessions.service ordering dep on systemd-journal-flush.service (#10502)
THis dep existed since the unit was introduced, but I cannot see what
good it would do. Hence in the interest of simplifying things, let's
drop it. If breakages appear later we can certainly revert this again.

Fixes: #10469
2018-10-25 04:41:02 +09:00
Lennart Poettering
f876f53789 units: add simple boot check unit
This is might be useful in some cases, but it's primarily an example for
a boot check service that can be plugged before boot-complete.target.

It's disabled by default.

All it does is check whether the failed unit count is zero
2018-10-19 22:34:50 +02:00
Lennart Poettering
36695e880a add new systemd-bless-boot.service that marks boots as successful
This is the counterpiece to the boot counting implemented in
systemd-boot: if a boot is detected as successful we mark drop the
counter again from the booted snippet or kernel image.
2018-10-19 22:34:50 +02:00
Lennart Poettering
329d20db3c units: add generic boot-complete.target 2018-10-19 22:34:50 +02:00
Lennart Poettering
a42984dbc7
Merge pull request #10428 from keszybz/failure-actions
Implement manager status changes using SuccessAction=
2018-10-17 21:29:10 +02:00
Zbigniew Jędrzejewski-Szmek
a400bd8c2a units: allow and use SuccessAction=exit-force in system systemd-exit.service
C.f. 287419c119: 'systemctl exit 42' can be
used to set an exit value and pulls in exit.target, which pulls in systemd-exit.service,
which calls org.fdo.Manager.Exit, which calls method_exit(), which sets the objective
to MANAGER_EXIT. Allow the same to happen through SuccessAction=exit.

v2: update for 'exit' and 'exit-force'
2018-10-17 19:32:07 +02:00
Zbigniew Jędrzejewski-Szmek
afa6206583 units: use SuccessAction=poweroff-force in systemd-poweroff.service
Explicit systemctl calls remain in systemd-halt.service and the system
systemd-exit.service. To convert systemd-halt, we'd need to add
SuccessAction=halt-force. Halting doesn't make much sense, so let's just
leave that is. systemd-exit.service will be converted in the next commit.
2018-10-17 19:31:50 +02:00
Zbigniew Jędrzejewski-Szmek
d85515edcf units: use SuccessAction=reboot-force in systemd-reboot.service 2018-10-17 19:31:50 +02:00
Zbigniew Jędrzejewski-Szmek
631c9b7bf2 units: use SuccessAction=exit-force in systemd-exit.service
Fixes #10414.

v2:
- rename .service.in to .service
- rename 'exit' to 'exit-force'
2018-10-17 19:31:50 +02:00
Zbigniew Jędrzejewski-Szmek
c02b6ee496 meson: define @HIGH_RLIMIT_NOFILE@ and use it everywhere 2018-10-17 14:54:48 +02:00
Lennart Poettering
c35ee02c61 units: bump the RLIMIT_NOFILE soft limit for all services that access the journal
This updates the unit files of all our serviecs that deal with journal
stuff to use a higher RLIMIT_NOFILE soft limit by default. The new value
is the same as used for the new HIGH_RLIMIT_NOFILE we just added.

With this we ensure all code that access the journal has higher
RLIMIT_NOFILE. The code that runs as daemon via the unit files, the code
that is run from the user's command line via C code internal to the
relevant tools. In some cases this means we'll redundantly bump the
limits as there are tools run both from the command line and as service.
2018-10-16 16:33:55 +02:00
Lennart Poettering
2d6718bf3d units: use =yes rather than =true everywhere
So far we always used "yes" instead of "true" in all our unit files,
except for one outlier. Let's do this here too. No change in behaviour
whatsoever, except that it looks prettier ;-)
2018-10-13 12:59:29 +02:00
Lennart Poettering
07ee5adb35 logind: change user-runtime-dir to query runtime dir size from logind via the bus
I think this is a slightly cleaner approach than parsing the
configuration file at multiple places, as this way there's only a single
reload cycle for logind.conf, and that's systemd-logind.service's
runtime.

This means that logind and dbus become a requirement of
user-runtime-dir, but given that XDG_RUNTIME_DIR is not set anyway
without logind and dbus around this isn't really any limitation.

This also simplifies linking a bit as this means user-runtime-dir
doesn't have to link against any code of logind itself.
2018-10-13 12:59:29 +02:00
Lennart Poettering
14df094a51 units: improve Description= string a bit
Let's not use the word "wrapper", as it's not clear what that is, and in
some way any unit file is a "wrapper"... let's simply say that it's
about the runtime directory.
2018-10-13 12:59:29 +02:00
Lennart Poettering
1007473b49 units: set StopWhenUnneeded= for the user slice units too
We'd like them to go away, just like the user-runtime-dir@.service when
they aren't needed anymore.
2018-10-13 12:59:29 +02:00
Lennart Poettering
dacd723620
Merge pull request #10117 from keszybz/undynamicify
Set DynamicUser=no for networkd, resolved, timesyncd
2018-10-05 17:41:56 +02:00
Franck Bui
4885626b56 emergency: make sure console password agents don't interfere with the emergency shell
If for any reason local-fs.target fails at startup while a password is
requested by systemd-cryptsetup@.service, we end up with the emergency shell
competing with systemd-ask-password-console.service for the console.

This patch makes sure that:

 - systemd-ask-password-console.service is stopped before entering in emergency
   mode so it won't make any access to the console while the emergency shell is
   running.

 - systemd-ask-password-console.path is also stopped so any attempts to restart
   systemd-cryptsetup in the emergency shell won't restart
   systemd-ask-password-console.service and kill the emergency shell.

 - systemd-ask-password-wall.path is stopped so
   systemd-ask-password-wall.service won't be started as this service pulls
   the default dependencies in.

Fixes: #10131
2018-09-26 18:13:32 +02:00
Zbigniew Jędrzejewski-Szmek
696fc8360d Revert "network: set DynamicUser= to systemd-networkd.service"
This reverts commit d4e9e574ea.
(systemd.conf.m4 part was already reverted in 5b5d82615011b9827466b7cd5756da35627a1608.)

Together those reverts should "fix" #10025 and #10011. ("fix" is in quotes
because this doesn't really fix the underlying issue, which is combining
DynamicUser= with strict container sandbox, but it avoids the problem by not
using that feature in our default installation.)

Dynamic users don't work well if the service requires matching configuration in
other places, for example dbus policy. This is true for those three services.
In effect, distros create the user statically [1, 2]. Dynamic users make more
sense for "add-on" services where not creating the user, or more precisely,
creating the user lazily, can save resources. For "basic" services, if we are
going to create the user on package installation anyway, setting DynamicUser=
just creates unneeded confusion. The only case where it is actually used is
when somebody forgets to do system configuration. But it's better to have the
service fail cleanly in this case too. If we want to turn on some side-effect
of DynamicUser=yes for those services, we should just do that directly through
fine-grained options. By not using DynamicUser= we also avoid the need to
restart dbus.

[1] bd9bf30727
[2] 48ac1cebde/f/systemd.spec (_473)
(Fedora does not create systemd-timesync user.)
2018-09-20 16:52:02 +02:00
Zbigniew Jędrzejewski-Szmek
62fb7e80fc Revert "resolve: enable DynamicUser= for systemd-resolved.service"
This reverts commit 0187368cad.
(systemd.conf.m4 part was already reverted in 5b5d82615011b9827466b7cd5756da35627a1608.)
2018-09-20 16:52:02 +02:00
João Paulo Rechi Vita
5c86583cf8 tmpfiles: Order tmpfiles-setup after journald
systemd-tmpfiles-setup.service needs to be ordered after
systemd-journald.service, so entries in /run/log/journal are already
created when systemd-tmpfiles tries to adjust its permissions.

This is specially problematic for setups using a volatile journal where
the initrd does not ship a machine-id (i.e. OSTree-based systems), where
logs from the initrd will be inaccessible for users in the
systemd-journal group. It also has a side effect of `journalctl --user`
failing with "No journal files were opened due to insufficient
permissions".

Fixes #10128.
2018-09-20 13:20:41 +02:00
Zbigniew Jędrzejewski-Szmek
3f491cccef meson: fix dirname/basename confusion in meson-and-wants.sh install helper (#10126)
We would create a useless empty directory under build/.
It seems we were lucky and all symlinks were installed into directories
which were alredy created because we installed something into the same
location earlier.

While at it, also add '-v' to 'mkdir -p'. This will print the names of
directories as they are created (just once), making it easier to see all of
what the install script is doing.
2018-09-20 16:01:58 +09:00
Zbigniew Jędrzejewski-Szmek
162e0b75f9 Revert "timesyncd: enable DynamicUser="
This reverts commit 48d3e88c18.

I kept the follow-symlink=false → follow-symlink=true change instact, since
we're likely to have existing installations with a symlink now.
2018-09-19 10:00:09 +02:00
Zbigniew Jędrzejewski-Szmek
89be857a41 Revert "unit: drop After=systemd-sysusers.service from timesyncd"
This reverts commit be80154827.
2018-09-19 09:56:36 +02:00
Alan Jenkins
473b9c683a user-runtime-dir@.service: don't stop on runlevel switch (#10079)
Followup to commit 13cf422e04 ("user@.service: don't kill user manager at runlevel switch")

I think there's a general rule that units with `StopWhenUnneeded=yes` need
`IgnoreOnIsolate=yes`...  But it doesn't apply to `suspend.target` and friends.
`printer.target` and friends break on isolate even if we apply the rule[1].
That just leaves `graphical-session.target`, which is a user service.
"isolate" is *mostly* a weird attempt to emulate runlevels, so I decided
not to worry about it for user services.

[1] https://github.com/systemd/systemd/issues/6505#issuecomment-320644819
2018-09-14 12:11:57 +09:00
Thomas Blume
8c1f04352b user@.service: don't kill user manager at runlevel switch
Loggin in as root user and then switching the runlevel results in a
stop of the user manager, even though the user ist still logged in.
That leaves a broken user session.

Adding "IgnoreOnIsolate=true" to user@.service fixes this.
2018-09-13 12:18:27 +02:00
Lennart Poettering
1193c11a04 units: assign user-runtime-dir@.service to user-%i.slice
This service won't use much resources, but it's certainly nicer to see
it attached th the user's slice along with user@.service, so that
everything we run for a specific user is properly bound into one unit.
2018-08-03 10:45:31 +02:00
Lennart Poettering
eb748aef4f units: order user-runtime-dir@.service after systemd-user-sessions.service
We use systemd-user-sessions.service as barrier when to allow login
sessions. With this patch user@.service is ordered after that too, so
that any login related code (which user-runtime-dir@.service is) is
guaranteed to run after the barrier, and never before.
2018-08-03 10:42:09 +02:00
Lennart Poettering
d06e8fbce3 units: make sure user-runtime-dir@.service is Type=oneshot
We order user@.service after it, hence we need to properly know when it
finished starting up.
2018-08-03 10:38:49 +02:00
Lennart Poettering
e5b3ace969 units: make sure user@.service runs with dbus still up
Fixes: #9565
2018-07-25 14:12:09 +02:00
Zbigniew Jędrzejewski-Szmek
a99655b052 man: add a description of user@.service, user-runtime-dir@.service, user-*.slice
Fixes #9590.
2018-07-20 16:57:50 +02:00
Lennart Poettering
6133af6030 units: let's use two ExecStart= lines instead of ; 2018-06-20 23:59:29 +02:00
Zbigniew Jędrzejewski-Szmek
5ce2212a72 units: fix typo in After=
Followup for c7668c1ce0.
2018-06-20 18:14:43 +02:00
Lennart Poettering
c7668c1ce0 units: make system-update-pre.target a passive unit (#9349)
This is an additional synchronization point normally not needed. Hence,
let's make it passive, i.e. pull it in from the unit which wants to be
ordered before the update service rather than by the update service
itself.
2018-06-20 12:46:18 +02:00
Hans de Goede
520741d08e units: Add new system-update-pre.target
systemd offline-updates allows dropping multiple system update units
to be added to system-update.target.wants.

As documented in systemd.offline-updates(7) only 1 of these units
should actually be active (based on the /system-update symlink) and
when that unit is done it should reboot the system.

In some cases it is desirable to run a unit whenever booting in
offline-updates mode indepedent of which update unit is going to
handle the update. One example of this is integration with bootloader
code which checks if the previous boot was succesful.

Since the active unit will reboot the system when it is done, there
is no guarantee that adding such a unit to system-update.target.wants
will get it executed always.

This commit adds a system-update-pre.target which can be used for
units which should always run when booting in offline-updates mode.
2018-06-19 13:42:19 +02:00
Lennart Poettering
ee8f26180d units: switch from system call blacklist to whitelist
This is generally the safer approach, and is what container managers
(including nspawn) do, hence let's move to this too for our own
services. This is particularly useful as this this means the new
@system-service system call filter group will get serious real-life
testing quickly.

This also switches from firing SIGSYS on unexpected syscalls to
returning EPERM. This would have probably been a better default anyway,
but it's hard to change that these days. When whitelisting system calls
SIGSYS is highly problematic as system calls that are newly introduced
to Linux become minefields for services otherwise.

Note that this enables a system call filter for udev for the first time,
and will block @clock, @mount and @swap from it. Some downstream
distributions might want to revert this locally if they want to permit
unsafe operations on udev rules, but in general this shiuld be mostly
safe, as we already set MountFlags=shared for udevd, hence at least
@mount won't change anything.
2018-06-14 17:44:20 +02:00
Zbigniew Jędrzejewski-Szmek
0cd41d4dff Drop my copyright headers
perl -i -0pe 's/\s*Copyright © .... Zbigniew Jędrzejewski.*?\n/\n/gms' man/*xml
git grep -e 'Copyright.*Jędrzejewski' -l | xargs perl -i -0pe 's/(#\n)?# +Copyright © [0-9, -]+ Zbigniew Jędrzejewski.*?\n//gms'
git grep -e 'Copyright.*Jędrzejewski' -l | xargs perl -i -0pe 's/\s*\/\*\*\*\s+Copyright © [0-9, -]+ Zbigniew Jędrzejewski[^\n]*?\s*\*\*\*\/\s*/\n\n/gms'
git grep -e 'Copyright.*Jędrzejewski' -l | xargs perl -i -0pe 's/\s+Copyright © [0-9, -]+ Zbigniew Jędrzejewski[^\n]*//gms'
2018-06-14 13:03:20 +02:00
Lennart Poettering
96b2fb93c5 tree-wide: beautify remaining copyright statements
Let's unify an beautify our remaining copyright statements, with a
unicode ©. This means our copyright statements are now always formatted
the same way. Yay.
2018-06-14 10:20:21 +02:00
Lennart Poettering
b2e8ae7380 units: switch udev service to use PrivateMounts=yes
Given that PrivateMounts=yes is the "successor" to MountFlags=slave in
unit files, let's make use of it for udevd.
2018-06-12 16:27:37 +02:00
Lennart Poettering
61d0578b07 add new portable service framework
This adds a small service "systemd-portabled" and a matching client
"portablectl", which implement the "portable service" concept.

The daemon implements the actual operations, is PolicyKit-enabled and is
activated on demand with exit-on-idle.

Both the daemon and the client are an optional build artifact, enabled
by default rhough.
2018-05-24 17:01:57 +02:00
Yu Watanabe
d4e9e574ea network: set DynamicUser= to systemd-networkd.service 2018-05-22 22:37:34 +09:00