1
0
mirror of https://github.com/systemd/systemd.git synced 2025-01-13 17:18:18 +03:00
Commit Graph

91 Commits

Author SHA1 Message Date
Zbigniew Jędrzejewski-Szmek
37edb704f9 test: shorten sample names, drop numerical prefixes
We don't care about the ordering, so we may just as well drop the numerical
prefixes that we normally use for sorting. Also rename some other samples
to keep width of output down to reasonable width.
2023-09-02 17:32:19 +03:00
Daan De Meyer
9c0c670125 core: Add RootEphemeral= setting
This setting allows services to run in an ephemeral copy of the root
directory or root image. To make sure the ephemeral copies are always
cleaned up, we add a tmpfiles snippet to unconditionally clean up
/var/lib/systemd/ephemeral. To prevent in use ephemeral copies from
being cleaned up by tmpfiles, we use the newly added COPY_LOCK_BSD
and BTRFS_SNAPSHOT_LOCK_BSD flags to take a BSD lock on the ephemeral
copies which instruct tmpfiles to not touch those ephemeral copies as
long as the BSD lock is held.
2023-06-21 12:48:46 +02:00
Zbigniew Jędrzejewski-Szmek
e2e736cbbd fuzz: rename long samples
With those long filenames, output doesn't fit on the terminal.
2023-05-18 15:23:27 +02:00
Mike Yuan
b5b1351317
test: add tests for UpheldBy= in [Install] section 2023-05-15 15:04:38 +08:00
Yu Watanabe
054749e413 core: add missing MemoryPressureWatch= and MemoryPressureThresholdSec= setting
Follow-up for #26393.

Addresses https://github.com/systemd/systemd/pull/26393#issuecomment-1458655798.
2023-03-09 23:43:04 +09:00
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
Pasha Vorobyev
d7fe0a6723 MemoryZSwapMax directive to configure new memory.zswap.max cgroup file 2022-11-15 21:15:37 +01:00
Michal Koutný
7e343b530e meson: Generate fuzzer inputs with directives
The lists of directives for fuzzer tests are maintained manually in the
repo. There is a tools/check-directives.sh script that runs during test
phase and reports stale directive lists.
Let's rework the script into a generator so that these directive files
are created on-the-flight and needn't be updated whenever a unit file
directives change. The scripts is rewritten in Python to get rid of gawk
dependency and each generated file is a separate meson target so that
incremental builds refresh what is just necessary (and parallelize
(negligible)).

Note: test/fuzz/fuzz-unit-file/directives-all.slice is kept since there
is not automated way to generate it (it is not covered by the check
script neither).
2022-10-20 14:43:50 +02:00
Lennart Poettering
351f7d5143 fuzz: add ConditionCredential= to fuzz files, and sort their sections 2022-07-15 10:53:45 +02:00
nl6720
0e68582323 tree-wide: link to docs.kernel.org for kernel documentation
https://www.kernel.org/ links to https://docs.kernel.org/ for the documentation.
See https://git.kernel.org/pub/scm/docs/kernel/website.git/commit/?id=ebc1c372850f249dd143c6d942e66c88ec610520

These URLs are shorter and nicer looking.
2022-07-04 19:56:53 +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
92897d768d tree-wide: replace obsolete wiki links with systemd.io/manpages
All wiki pages that contain a deprecation banner
pointing to systemd.io or manpages are updated to
point to their replacements directly.

Helpful command for identification of available links:
git grep freedesktop.org/wiki | \
    sed "s#.*\(https://www.freedesktop.org/wiki[^ $<'\\\")]*\)\(.*\)#\\1#" | \
    sort | uniq
2022-05-21 14:29:14 +02:00
Eduard Tolosa
bb5824c9ab
Add ConditionCPUFeature to load-fragment-gperf.gperf (#23076)
Fixes #23075
2022-04-14 15:30:03 +09:00
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
Alvin Šipraga
19ff06b3a4
udev/net: support Match.Firmware= in .link files (#22462)
In cbcdcaaa0e ("Add support for conditions on the machines firmware")
a new Firmware= directive was added for .netdev and .network files.
While it was also documented to work on .link files, in actual fact the
support was missing. Add that one extra line to make it work, and also
update the fuzzer directives.
2022-02-10 16:19:28 +09:00
Santa Wiryaman
97f27f8a16 Add support for isolated parameter
Add the "Isolated" parameter in the *.network file, e.g.,

[Bridge]
Isolated=true|false

When the Isolated parameter is true, traffic coming out of this port
will only be forward to other ports whose Isolated parameter is false.

When Isolated is not specified, the port uses the kernel default
setting (false).

The "Isolated" parameter was introduced in Linux 4.19.
See man bridge(8) for more details.
But even though the kernel and bridge/iproute2 recognize the "Isolated"
parameter, systemd-networkd did not have a way to set it.
2022-02-09 17:37:37 +09:00
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
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
Luca Boccassi
81513b382b core: add Condition[Memory/CPU/IO]Pressure
By default checks PSI on /proc/pressure, and causes a unit to be skipped
if the threshold is above the given configuration for the avg300
measurement.
Also allow to pass a custom timespan, and a particular slice unit to
check under.

Fixes #20139
2021-12-01 09:53:18 +01:00
Andrew Stone
7c5cef2211 core/automount: Add ExtraOptions field 2021-11-23 09:44:35 +01:00
Slava Bacherikov
af493fb742 network: Add SuppressInterfaceGroup= into routing policy
This adds SuppressInterfaceGroup= option in the [RoutingPolicyRule] section
which has the same semantics as suppress_ifgroup in `ip rule` command.
2021-11-16 01:54:07 +09:00
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
Iago López Galeiras
e59ccd035c core: add RestrictFileSystems= fragment parser
It takes an allow or deny list of filesystems services should have
access to.
2021-10-06 10:52:14 +02:00
Albert Brox
5918a93355 core: implement RuntimeMaxDeltaSec directive 2021-09-28 16:46:20 +02:00
alexlzhu
8c35c10d20 core: Add ExecSearchPath parameter to specify the directory relative to which binaries executed by Exec*= should be found
Currently there does not exist a way to specify a path relative to which
all binaries executed by Exec should be found. The only way is to
specify the absolute path.

This change implements the functionality to specify a path relative to which
binaries executed by Exec*= can be found.

Closes #6308
2021-09-28 14:52:27 +01:00
Peter Morrow
1b75e5f343 fuzz: list directives in alphabetical order 2021-09-24 14:43:01 +01:00
Peter Morrow
88a56dc8d6 fuzz: add StartupAllowedCPUs and StartupAllowedMemoryNodes to directives
Signed-off-by: Peter Morrow <pemorrow@linux.microsoft.com>
2021-09-15 09:52:12 +01:00
Mauricio Vásquez
4f0c25c794 core: add load fragment implementation for RestrictNetworkInterfaces=
Signed-off-by: Mauricio Vásquez <mauricio@kinvolk.io>
2021-08-18 15:55:53 -05:00
Lennart Poettering
43144be4a1 pid1: add support for encrypted credentials 2021-07-08 09:30:56 +02:00
Zbigniew Jędrzejewski-Szmek
abaf5edd08 Revert "Introduce ExitType"
This reverts commit cb0e818f7c.

After this was merged, some design and implementation issues were discovered,
see the discussion in #18782 and #19385. They certainly can be fixed, but so
far nobody has stepped up, and we're nearing a release. Hopefully, this feature
can be merged again after a rework.

Fixes #19345.
2021-06-30 21:56:47 +02:00
Luca Boccassi
1e26f8a60b core: add ConditionOSRelease= directive 2021-06-24 13:57:48 +01:00
Lennart Poettering
0bc488c99a core: implement Uphold= dependency type
This is like a really strong version of Wants=, that keeps starting the
specified unit if it is ever found inactive.

This is an alternative to Restart= inside a unit, acknowledging the fact
that whether to keep restarting the unit is sometimes not a property of
the unit itself but the state of the system.

This implements a part of what #4263 requests. i.e. there's no
distinction between "always" and "opportunistic". We just dumbly
implement "always" and become active whenever we see no job queued for
an inactive unit that is supposed to be upheld.
2021-05-25 16:03:03 +02:00
Lennart Poettering
294446dcb9 core: add new OnSuccess= dependency type
This is similar to OnFailure= but is activated whenever a unit returns
into inactive state successfully.

I was always afraid of adding this, since it effectively allows building
loops and makes our engine Turing complete, but it pretty much already
was it was just hidden.

Given that we have per-unit ratelimits as well as an event loop global
ratelimit I feel safe to add this finally, given it actually is useful.

Fixes: #13386
2021-05-25 16:03:03 +02:00
Lennart Poettering
ffec78c05b core: add new PropagateStopTo= dependency (and inverse)
This takes inspiration from PropagatesReloadTo=, but propagates
stop jobs instead of restart jobs.

This is defined based on exactly two atoms: UNIT_ATOM_PROPAGATE_STOP +
UNIT_ATOM_RETROACTIVE_STOP_ON_STOP. The former ensures that when the
unit the dependency is originating from is stopped based on user
request, we'll propagate the stop job to the target unit, too. In
addition, when the originating unit suddenly stops from external causes
the stopping is propagated too. Note that this does *not* include the
UNIT_ATOM_CANNOT_BE_ACTIVE_WITHOUT atom (which is used by BoundBy=),
i.e. this dependency is purely about propagating "edges" and not
"levels", i.e. it's about propagating specific events, instead of
continious states.

This is supposed to be useful for dependencies between .mount units and
their backing .device units. So far we either placed a BindsTo= or
Requires= dependency between them. The former gave a very clear binding
of the to units together, however was problematic if users establish
mounnts manually with different block device sources than our
configuration defines, as we there might come to the conclusion that the
backing device was absent and thus we need to umount again what the user
mounted. By combining Requires= with the new StopPropagatedFrom= (i.e.
the inverse PropagateStopTo=) we can get behaviour that matches BindsTo=
in every single atom but one: UNIT_ATOM_CANNOT_BE_ACTIVE_WITHOUT is
absent, and hence the level-triggered logic doesn't apply.

Replaces: #11340
2021-05-25 16:03:03 +02:00
Zbigniew Jędrzejewski-Szmek
3968ccd0cd core: fix crash in BPFProgram parsing
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33270.
2021-05-05 17:15:04 +02:00
Zbigniew Jędrzejewski-Szmek
cc87b3f68f core: fix crash in parsing of SocketBind{Allow,Deny}=
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33876.
2021-05-05 17:14:58 +02:00
Uwe Kleine-König
cbcdcaaa0e Add support for conditions on the machines firmware
This allows to limit units to machines that run on a certain firmware
type. For device tree defined machines checking against the machine's
compatible is also possible.
2021-04-28 10:55:55 +02:00
Julia Kartseva
7dc1707aab fuzz: add SocketBind{Allow|Deny}= directive 2021-04-26 16:26:28 -07:00
LetzteInstanz
8430841b5e network: save IPv4/IPv6 address states into state file
This also introduces RequiredFamilyForOnline= setting to .network file,
and IPv4AddressState/IPv6AddressState DBus properties.
2021-04-14 08:51:02 +09:00
Julia Kartseva
96734772a7 fuzz: add BPFProgram= to directives 2021-04-09 20:28:47 -07:00
Zbigniew Jędrzejewski-Szmek
71d1e58309 core: fix memleak of ipc_namespace_path
Fixup for a70581ffb5.
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32991
2021-04-07 22:12:50 +01:00
Frantisek Sumsal
34fde9f898 test: check if the unit file fuzzer corpora is up to date
This follows a similar pattern we already have in place for
networkd-related directives.
2021-04-05 14:41:05 +01:00
Frantisek Sumsal
080a602771 fuzzer: add a test case for #19178 2021-04-03 10:38:06 +01:00
Henri Chain
cb0e818f7c Introduce ExitType 2021-03-31 10:26:07 +02:00
Xℹ Ruoyao
a70581ffb5
New directives PrivateIPC and IPCNamespacePath 2021-03-04 00:04:36 +08:00