1
0
mirror of https://github.com/systemd/systemd.git synced 2024-12-23 21:35:11 +03:00
Commit Graph

112 Commits

Author SHA1 Message Date
Quentin Deslandes
523ea1237a journal: log filtering options support in PID1
Define new unit parameter (LogFilterPatterns) to filter logs processed by
journald.

This option is used to store a regular expression which is carried from
PID1 to systemd-journald through a cgroup xattrs:
`user.journald_log_filter_patterns`.
2022-12-15 09:57:39 +00:00
Zbigniew Jędrzejewski-Szmek
8608fef36c
Merge pull request #25437 from YHNdnzj/systemctl-disable-warn-statically-enabled-services
systemctl: warn if trying to disable a unit with no install info
2022-12-05 10:27:24 +01:00
Mike Yuan
bf1bea43f1
systemctl: warn if trying to disable a unit with no install info
Trying to disable a unit with no install info is mostly useless, so
adding a warning like we do for enable (with the new dbus method
'DisableUnitFilesWithFlagsAndInstallInfo()'). Note that it would
still find and remove symlinks to the unit in /etc, regardless of
whether it has install info or not, just like before. And if there are
actually files to remove, we suppress the warning.

Fixes #17689
2022-12-03 20:26:14 +08:00
Lennart Poettering
0461375326
Merge pull request #25385 from drvink/main
systemd: Support OOMPolicy in scope units
2022-11-29 14:40:18 +01:00
Mark Laws
5fa098357e systemd: Support OOMPolicy in scope units
Closes #25376.
2022-11-24 19:41:28 +09:00
Pasha Vorobyev
d7fe0a6723 MemoryZSwapMax directive to configure new memory.zswap.max cgroup file 2022-11-15 21:15:37 +01:00
Frantisek Sumsal
1ca1bb03de man: use the correct 'Markers' property name for marking units
Follow-up to c9615f7352 and 70666e28a1.
2022-11-02 14:36:51 +01:00
Zbigniew Jędrzejewski-Szmek
9e11abe817
Merge pull request #25007 from keszybz/rename-dbus-dump
manager: rename dbus method
2022-10-18 11:34:16 +02:00
Zbigniew Jędrzejewski-Szmek
f6cce15bb3 manager: add DumpUnitsMatchingPatternsByFileDescriptor() 2022-10-17 15:00:53 +02:00
Zbigniew Jędrzejewski-Szmek
e2d4456f43 man: fix method name 2022-10-17 13:50:17 +02:00
Zbigniew Jędrzejewski-Szmek
293b9aa3eb manager: rename dbus method
Fixes #24989.
2022-10-14 18:31:33 +02:00
Franck Bui
d1d8786c5b analyze: extend the dump command to accept patterns
The new function DumpPatterns() can be used to limit (drastically) the size of
the data returned by PID1. Hence the optimization of serializing data into a
file descriptor should be less relevant than having the possibility to limit
the data when communicating with the service manager remotely.

NB: when passing patterns, the dump command omits the version of the manager as
well as the features and the timestamps.
2022-10-13 07:47:42 +09:00
Lennart Poettering
0df8512124 man: document the Dump() calls of the PID 1 D-Bus interface, and what they are 2022-09-30 11:32:24 +02:00
Lennart Poettering
4d0d34b4e7
Merge pull request #24709 from keszybz/partition-table-constants
Expose various GPT UUIDs as public contants and link them up in docs
2022-09-21 20:07:21 +02:00
Zbigniew Jędrzejewski-Szmek
b66a6e1a58 man: "the initial RAM disk" → "the initrd"
In many places we spelled out the phrase behind "initrd" in full, but this
isn't terribly useful. In fact, no "RAM disk" is used, so emphasizing this
is just confusing to the reader. Let's just say "initrd" everywhere, people
understand what this refers to, and that it's in fact an initramfs image.

Also, s/i.e./e.g./ where appropriate.

Also, don't say "in RAM", when in fact it's virtual memory, whose pages
may or may not be loaded in page frames in RAM, and we have no control over
this.

Also, add <filename></filename> and other minor cleanups.
2022-09-20 16:48:50 +02:00
Yu Watanabe
3e911a0d0e pid1: drop redundant DBus properties
Follow-up for 10f3f4ed01.

We already have RuntimeWatchdogUSec or friends. Let's not introduce
redundant properties.

Also, drop the const qualifier for WatchdogLastPingTimestamp, as they
are actually not constant.
2022-09-16 21:53:28 +09:00
Yu Watanabe
10f3f4ed01 pid1: introduce dbus properties WatchdogDevice and friends
Closes #24665.
2022-09-14 13:13:59 +01:00
Luca Boccassi
48b92b37ac core: add basic infrastructure to record unit activation information
Not wired in by any unit type yet, just the basic to allocate,
ref, deref and plug in to other unit types.
Includes recording the trigger unit name and passing it to the
triggered unit as TRIGGER_UNIT= env var.
2022-08-23 20:38:08 +01:00
Lennart Poettering
d096265708
Merge pull request #24044 from dtardon/default-device-timeout
Add a configuration option for setting default device timeout
2022-08-08 15:32:55 +02:00
David Tardon
141332ab55 man: update dbus docs 2022-08-05 15:56:23 +02:00
Lennart Poettering
23e9a7dde5 core: cache unit file selinux label, and make decisions based on that
Do not go back to disk on each selinux access, but instead cache the
label off the inode we are actually reading. That way unit file contents
and unit file label we use for access checks are always in sync.

Based on discussions here:

https://github.com/systemd/systemd/pull/10023#issuecomment-1179835586

Replaces:

https://github.com/systemd/systemd/pull/23910

This changes behaviour a bit, because we'll reach and cache the label at
the moment of loading the unit (i.e. usually on boot and reload), but
not after relabelling. Thus, users must refresh the cache explicitly via
a "systemctl daemon-reload" if they relabelled things.

This makes the SELinux story a bit more debuggable, as it adds an
AccessSELinuxContext bus property to units that will report the label we are
using for a unit (or the empty string if not known).

This also drops using the "source" path of a unit as label source. if
there's value in it, then generators should manually copy the selinux
label from the source files onto the generated unit files, so that the
rule that "access labels are read when we read the definition files" is
upheld. But I am not convinced this is really a necessary, good idea.
2022-07-20 19:08:28 +02:00
Zbigniew Jędrzejewski-Szmek
4bd035153b manager: add taint flag "support-ended"
In the welcome line, use NAME= as the fallback for PRETTY_NAME=.
PRETTY_NAME= doesn't have to be set, but NAME= should.

Example output:
---
Welcome to Fedora Linux 37 (Rawhide Prerelease)!

[  !!  ] This OS version (Fedora Linux 37 (Rawhide Prerelease)) is past its end-of-support date (1999-01-01)
Queued start job for default target graphical.target.
[  OK  ] Created slice system-getty.slice.
---
2022-07-10 14:33:52 +02:00
Zbigniew Jędrzejewski-Szmek
8bf9eb7e6b man: update the description of taint flags
We had a description in README, and an outdated list in the man page.
I think we should keep a reference-style list in the man page. The description
in README is more free-form.
2022-07-09 19:18:14 +02:00
Yu Watanabe
b48ed70c79 Revert NFTSet feature
This reverts PR #22587 and its follow-up commit. More specifically,
2299b1cae3 (partially),
e176f85527,
ceb46a31a0, and
51bb9076ab.

The PR was merged without final approval, and has several issues:
- OSS fuzz reported issues in the conf parser,
- It calls synchrnous netlink call, it should not be especially in PID1,
- The importance of NFTSet for CGroup and DynamicUser may be
  questionable, at least, there was no justification PID1 should support
  it.
- For networkd, it should be implemented with Request object,
- There is no test for the feature.

Fixes #23711.
Fixes #23717.
Fixes #23719.
Fixes #23720.
Fixes #23721.
Fixes #23759.
2022-06-22 22:23:58 +09:00
Topi Miettinen
46c3b1ff88 core: firewall integration with DynamicUserNFTSet=
New directive `DynamicUserNFTSet=` provides a method for integrating
configuration of dynamic users into firewall rules with NFT sets.

Example:
```
table inet filter {
        set u {
                typeof meta skuid
        }

        chain service_output {
                meta skuid != @u drop
                accept
        }
}
```

```
/etc/systemd/system/dunft.service
[Service]
DynamicUser=yes
DynamicUserNFTSet=inet:filter:u
ExecStart=/bin/sleep 1000

[Install]
WantedBy=multi-user.target
```

```
$ sudo nft list set inet filter u
table inet filter {
        set u {
                typeof meta skuid
                elements = { 64864 }
        }
}
$ ps -n --format user,group,pid,command -p `pgrep sleep`
    USER    GROUP     PID COMMAND
   64864    64864   55158 /bin/sleep 1000
```
2022-06-08 16:12:25 +00:00
Topi Miettinen
c0548df0a2 core: firewall integration with ControlGroupNFTSet=
New directive `ControlGroupNFTSet=` provides a method for integrating services
into firewall rules with NFT sets.

Example:

```
table inet filter {
...
        set timesyncd {
                type cgroupsv2
        }

        chain ntp_output {
                socket cgroupv2 != @timesyncd counter drop
                accept
        }
...
}
```

/etc/systemd/system/systemd-timesyncd.service.d/override.conf
```
[Service]
ControlGroupNFTSet=inet:filter:timesyncd
```

```
$ sudo nft list set inet filter timesyncd
table inet filter {
        set timesyncd {
                type cgroupsv2
                elements = { "system.slice/systemd-timesyncd.service" }
        }
}
```
2022-06-08 16:12:25 +00:00
Benjamin Franzke
a25d9395ad tree-wide: streamline wiki links
* Avoid traling slash as most links are defined without.
* Always use https:// protocol and www. subdomain

Allows for easier tree-wide linkvalidation
for our migration to systemd.io.
2022-05-21 14:28:03 +02:00
Frantisek Sumsal
624f685fe8 core: annotate Reexecute() as NoReply
So we're able to tell from the introspection data that the method
doesn't reply.
2022-05-10 14:16:11 +09:00
Zbigniew Jędrzejewski-Szmek
e4239a34d7 man: deduplicate dbus versioning ref 2022-05-05 11:48:22 +02:00
Luca Boccassi
ee3ae55e75 core: do not return 'skipped' when Condition*= fail with StartUnitWithFlags()
Backward incompatible change to avoid returning 'skipped' if a condition causes
a job activation to be skipped when using StartUnitWithFlags().
Job results are broadcasted, so it is theoretically possible that existing
software could get confused if they see this result.

Replaces https://github.com/systemd/systemd/pull/22369
2022-03-10 13:16:21 +00:00
Zbigniew Jędrzejewski-Szmek
4db62561c2 core: manage SetShowStatus through polkit
When writing docs for SD_BUS_VTABLE_CAPABILITY, I noticed that we have one use
of SD_BUS_VTABLE_CAPABILITY(CAP_SYS_ADMIN) in the tree. This is the default, so
it's not very useful to specify it. But if we're touching that, I think it's
better to use mac + polkit for this like for everything else.

We don't have a very good category for this, but I don't think it makes sense
to add a new one. I just reused the same as other similar calls.
2022-03-08 23:13:36 +09:00
Zbigniew Jędrzejewski-Szmek
46d362f406 man: drop outdated info about polkit in pid1
Fixes #22648.
2022-03-04 14:03:50 +01:00
Luca Boccassi
aff3a9e1fa watchdog: add setting to configure pretimeout governor 2022-02-22 17:19:54 +00:00
Curtis Klein
5717062e93 watchdog: Add watchdog pretimeout support
Add support for managing and configuring watchdog pretimeout values if
the watchdog hardware supports it. The ping interval is adjusted to
account for a pretimeout so that it will still ping at half the timeout
interval before a pretimeout event would be triggered. By default the
pretimeout defaults to 0s or disabled.

The RuntimeWatchdogPreSec config option is added to allow the pretimeout
to be specified (similar to RuntimeWatchdogSec). The
RuntimeWatchdogPreUSec dbus property is added to override the pretimeout
value at runtime (similar to RuntimeWatchdogUSec). Setting the
pretimeout to 0s will disable the pretimeout.
2022-02-22 17:19:54 +00:00
Lennart Poettering
5483fca07a pid1: export cgroup ID among per-unit cgroup information
It's really interesting for debugging purposes and we have it already,
hence expose it as dbus property.
2022-02-11 13:36:39 +01:00
Luca Boccassi
a07b992606 core: add ExtensionDirectories= setting
Add a new setting that follows the same principle and implementation
as ExtensionImages, but using directories as sources.
It will be used to implement support for extending portable images
with directories, since portable services can already use a directory
as root.
2022-01-21 22:53:12 +09:00
Yu Watanabe
adc1b76c30 core: add missing dependency DBus properties
Follow-up for 0bc488c99a.

Also sort dependency properties to make them match the definition of
`enum UnitDependency` in basic/unit-def.h.

Fixes #22133.
2022-01-16 14:05:33 +00:00
Zbigniew Jędrzejewski-Szmek
931bc1957b docs: use https:// for fd.o links 2022-01-12 16:05:59 +01:00
Yu Watanabe
34b5684846 man: also add anotations for methods
Fixes #21882.
2021-12-24 10:18:11 +00:00
Luca Boccassi
47dba9fb09 path unit: add TriggerLimitBurst= and TriggerLimitIntervalSec=
Given there's now a default for these settings, also allow users to configure
them, matching socket units
2021-12-18 23:17:53 +00:00
Zbigniew Jędrzejewski-Szmek
f333ed27fa
Merge pull request #20476 from jamacku/new-feature-reloaded-stamp
core: indicate the time when units were loaded
2021-12-07 18:47:25 +01:00
Luca Boccassi
f43282670b core: add StartUnitWithFlags DBUS method
When an activation job is skipped because of a Condition*= setting failing,
currently the JobRemoved signal lists 'done' as the result, just as with
a successful job.

This is a problem when doing dbus activation: dbus-broker will receive a
signal that says the job was successful, so then it moves into a state where
it waits for the requested name to appear on the bus, but that never happens
because the job was actually skipped.

Add a new StartUnitWithFlags that changes the behaviour of the JobRemoved
signal to list 'done' or 'skipped'.

Fixes #21520
2021-12-07 16:30:49 +01:00
Jan Macku
49fbe940a4 core: Add new DBUS properties UnitsReloadStartTimestamp and UnitsLoadTimestampMontonic 2021-12-07 16:02:46 +01:00
Andrew Stone
7c5cef2211 core/automount: Add ExtraOptions field 2021-11-23 09:44:35 +01:00
ml
84b10e536c man: remove unintentionally repetitive words 2021-11-11 14:36:50 +01:00
Zbigniew Jędrzejewski-Szmek
e2de2d28f4
Merge pull request #20813 from unusual-thoughts/exittype_v2
Reintroduce ExitType
2021-11-08 15:06:37 +01:00
Henri Chain
596e447076 Reintroduce ExitType
This introduces `ExitType=main|cgroup` for services.
Similar to how `Type` specifies the launch of a service, `ExitType` is
concerned with how systemd determines that a service exited.

- If set to `main` (the current behavior), the service manager will consider
  the unit stopped when the main process exits.

- The `cgroup` exit type is meant for applications whose forking model is not
  known ahead of time and which might not have a specific main process.
  The service will stay running as long as at least one process in the cgroup
  is running. This is intended for transient or automatically generated
  services, such as graphical applications inside of a desktop environment.

Motivation for this is #16805. The original PR (#18782) was reverted (#20073)
after realizing that the exit status of "the last process in the cgroup" can't
reliably be known (#19385)

This version instead uses the main process exit status if there is one and just
listens to the cgroup empty event otherwise.

The advantages of a service with `ExitType=cgroup` over scopes are:
- Integrated logging / stdout redirection
- Avoids the race / synchronisation issue between launch and scope creation
- More extensive use of drop-ins and thus distro-level configuration:
  by moving from scopes to services we can have drop ins that will affect
  properties that can only be set during service creation,
  like `OOMPolicy` and security-related properties
- It makes systemd-xdg-autostart-generator usable by fixing [1], as obviously
  only services can be used in the generator, not scopes.

[1] https://bugs.kde.org/show_bug.cgi?id=433299
2021-11-08 10:15:23 +01:00
Daan De Meyer
51462135fb exec: Add TTYRows and TTYColumns properties to set TTY dimensions 2021-11-05 21:32:14 +00:00
Luca Boccassi
211a3d87fb core: add [State|Runtime|Cache|Logs]Directory symlink as second parameter
When combined with a tmpfs on /run or /var/lib, allows to create
arbitrary and ephemeral symlinks for StateDirectory or RuntimeDirectory.
This is especially useful when sharing these directories between
different services, to make the same state/runtime directory 'backend'
appear as different names to each service, so that they can be added/removed
to a sharing agreement transparently, without code changes.

An example (simplified, but real) use case:

foo.service:
StateDirectory=foo

bar.service:
StateDirectory=bar

foo.service.d/shared.conf:
StateDirectory=
StateDirectory=shared:foo

bar.service.d/shared.conf:
StateDirectory=
StateDirectory=shared:bar

foo and bar use respectively /var/lib/foo and /var/lib/bar. Then
the orchestration layer decides to stop this sharing, the drop-in
can be removed. The services won't need any update and will keep
working and being able to store state, transparently.

To keep backward compatibility, new DBUS messages are added.
2021-10-28 10:47:46 +01:00
Iago López Galeiras
cc86a278de core: add dbus RestrictFileSystems= properties 2021-10-06 10:52:14 +02:00