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Commit Graph

32 Commits

Author SHA1 Message Date
Lennart Poettering
760b9d7cba core: don't override NoNewPriviliges= from SystemCallFilter= if it is already explicitly set 2014-03-05 04:41:01 +01:00
Lennart Poettering
94828d2ddc conf-parser: config_parse_path_strv() is not generic, so let's move it into load-fragment.c
The parse code actually checked for specific lvalue names, which is
really wrong for supposedly generic parsers...
2014-03-03 21:40:55 +01:00
Lennart Poettering
3af00fb85a core: move config_parse_set_status() into load-fragment.c
Let's keep specific config parsers close to where they are needed. Only
the really generic ones should be defined in conf-parser.[ch].
2014-03-03 21:26:53 +01:00
Lennart Poettering
e66cf1a3f9 core: introduce new RuntimeDirectory= and RuntimeDirectoryMode= unit settings
As discussed on the ML these are useful to manage runtime directories
below /run for services.
2014-03-03 17:55:32 +01:00
Lennart Poettering
4298d0b512 core: add new RestrictAddressFamilies= switch
This new unit settings allows restricting which address families are
available to processes. This is an effective way to minimize the attack
surface of services, by turning off entire network stacks for them.

This is based on seccomp, and does not work on x86-32, since seccomp
cannot filter socketcall() syscalls on that platform.
2014-02-26 02:19:28 +01:00
Michael Scherer
eef65bf3ee core: Add AppArmor profile switching
This permit to switch to a specific apparmor profile when starting a daemon. This
will result in a non operation if apparmor is disabled.
It also add a new build requirement on libapparmor for using this feature.
2014-02-21 03:44:20 +01:00
Lennart Poettering
ac45f971a1 core: add Personality= option for units to set the personality for spawned processes 2014-02-19 03:27:03 +01:00
Lennart Poettering
5f8640fb62 core: store and expose SELinuxContext field normalized as bool + string 2014-02-17 16:52:52 +01:00
Lennart Poettering
57183d117a core: add SystemCallArchitectures= unit setting to allow disabling of non-native
architecture support for system calls

Also, turn system call filter bus properties into complex types instead
of concatenated strings.
2014-02-13 00:24:00 +01:00
Lennart Poettering
17df7223be core: rework syscall filter
- Allow configuration of an errno error to return from blacklisted
  syscalls, instead of immediately terminating a process.

- Fix parsing logic when libseccomp support is turned off

- Only keep the actual syscall set in the ExecContext, and generate the
  string version only on demand.
2014-02-12 18:30:36 +01:00
Lennart Poettering
e821075a23 bus: add .busname unit type to implement kdbus-style bus activation 2013-12-02 23:32:34 +01:00
Lennart Poettering
d420282b28 core: replace OnFailureIsolate= setting by a more generic OnFailureJobMode= setting and make use of it where applicable 2013-11-26 02:26:31 +01:00
Tom Gundersen
71a6151083 conf-parser: distinguish between multiple sections with the same name
Pass on the line on which a section was decleared to the parsers, so they
can distinguish between multiple sections (if they chose to). Currently
no parsers take advantage of this, but a follow-up patch will do that
to distinguish

[Address]
Address=192.168.0.1/24
Label=one

[Address]
Address=192.168.0.2/24
Label=two

from

[Address]
Address=192.168.0.1/24
Label=one
Address=192.168.0.2/24
Label=two
2013-11-25 19:35:44 +01:00
Tom Gundersen
accdd018ed mount/service: drop FsckPassNo support
We now treat passno as boleans in the generators, and don't need this any more. fsck itself
is able to sequentialize checks on the same local media, so in the common case the ordering
is redundant.

It is still possible to force an order by using .d fragments, in case that is desired.
2013-10-19 12:23:17 +02:00
Lennart Poettering
8e7076caae cgroup: split out per-device BlockIOWeight= setting into BlockIODeviceWeight=
This way we can nicely map the configuration directive to properties and
back, without requiring two different signatures for the same property.
2013-07-11 20:40:18 +02:00
Lennart Poettering
4ad490007b core: general cgroup rework
Replace the very generic cgroup hookup with a much simpler one. With
this change only the high-level cgroup settings remain, the ability to
set arbitrary cgroup attributes is removed, so is support for adding
units to arbitrary cgroup controllers or setting arbitrary paths for
them (especially paths that are different for the various controllers).

This also introduces a new -.slice root slice, that is the parent of
system.slice and friends. This enables easy admin configuration of
root-level cgrouo properties.

This replaces DeviceDeny= by DevicePolicy=, and implicitly adds in
/dev/null, /dev/zero and friends if DeviceAllow= is used (unless this is
turned off by DevicePolicy=).
2013-06-27 04:17:34 +02:00
Lennart Poettering
a016b9228f core: add new .slice unit type for partitioning systems
In order to prepare for the kernel cgroup rework, let's introduce a new
unit type to systemd, the "slice". Slices can be arranged in a tree and
are useful to partition resources freely and hierarchally by the user.

Each service unit can now be assigned to one of these slices, and later
on login users and machines may too.

Slices translate pretty directly to the cgroup hierarchy, and the
various objects can be assigned to any of the slices in the tree.
2013-06-17 21:36:51 +02:00
Lennart Poettering
3ecaa09bcc unit: rework trigger dependency logic
Instead of having explicit type-specific callbacks that inform the
triggering unit when a triggered unit changes state, make this generic
so that state changes are forwarded betwee any triggered and triggering
unit.

Also, get rid of UnitRef references from automount, timer, path units,
to the units they trigger and rely exclsuively on UNIT_TRIGGER type
dendencies.
2013-04-23 16:00:32 -03:00
Zbigniew Jędrzejewski-Szmek
e8e581bf25 Report about syntax errors with metadata
The information about the unit for which files are being parsed
is passed all the way down. This way messages land in the journal
with proper UNIT=... or USER_UNIT=... attribution.

'systemctl status' and 'journalctl -u' not displaying those messages
has been a source of confusion for users, since the journal entry for
a misspelt setting was often logged quite a bit earlier than the
failure to start a unit.

Based-on-a-patch-by: Oleksii Shevchuk <alxchk@gmail.com>
2013-04-17 00:09:16 -04:00
Lennart Poettering
26d04f86a3 unit: rework resource management API
This introduces a new static list of known attributes and their special
semantics. This means that cgroup attribute values can now be
automatically translated from user to kernel notation for command line
set settings, too.

This also adds proper support for multi-line attributes.
2013-02-27 18:50:41 +01:00
Lennart Poettering
853b8397ac core: properly validate environment data from Environment= lines in unit files 2013-02-11 23:54:30 +01:00
Shawn Landden
c2f1db8f83 use #pragma once instead of foo*foo #define guards
#pragma once has been "un-deprecated" in gcc since 3.3, and is widely supported
in other compilers.

I've been using and maintaining (rebasing) this patch for a while now, as
it annoyed me to see #ifndef fooblahfoo, etc all over the place,
almost arrogant about the annoyance of having to define all these names to
perform a commen but neccicary functionality, when a completely superior
alternative exists.

I havn't sent it till now, cause its kindof a style change, and it is bad
voodoo to mess with style that has been established by more established
editors. So feel free to lambast me as a crazy bafoon.

v2 - preserve externally used headers
2012-07-19 12:30:59 +02:00
Lennart Poettering
8351ceaea9 execute: support syscall filtering using seccomp filters 2012-07-17 04:17:53 +02:00
Lennart Poettering
8ff290af3b unit: drop the Names= option
Names= is a source of errors, simply because alias names specified like
this only become relevant after a unit has been loaded but cannot be
used to load a unit.

Let's get rid of the confusion and drop this field. To establish alias
names peope should use symlinks, which have the the benefit of being
useful as key to load a unit, even though they are not taken into
account if unit names are listed but they haven't been explicitly
referenced before.
2012-06-22 16:24:57 +02:00
Lukas Nykryn
98709151f3 service: timeout for oneshot services
Add possibility to specify timeout for oneshot services.

[ https://bugzilla.redhat.com/show_bug.cgi?id=761656
  Added minor fixups. -- michich ]
2012-06-15 16:04:06 +02:00
Lennart Poettering
213ba152fd journal: allow setting of a cutoff log level for disk storage, syslog, kmsg, console forwarding 2012-06-01 17:27:16 +02:00
Lennart Poettering
d88a251b12 util: introduce a proper nsec_t and make use of it where appropriate 2012-05-31 04:27:03 +02:00
Lennart Poettering
ec8927ca59 main: add configuration option to alter capability bounding set for PID 1
This also ensures that caps dropped from the bounding set are also
dropped from the inheritable set, to be extra-secure. Usually that should
change very little though as the inheritable set is empty for all our uses
anyway.
2012-05-24 04:00:56 +02:00
Lennart Poettering
49dbfa7b2b units: introduce new Documentation= field and make use of it everywhere
This should help making the boot process a bit easier to explore and
understand for the administrator. The simple idea is that "systemctl
status" now shows a link to documentation alongside the other status and
decriptionary information of a service.

This patch adds the necessary fields to all our shipped units if we have
proper documentation for them.
2012-05-21 15:14:51 +02:00
Lennart Poettering
7c8fa05c4d unit: add new dependency type RequiresMountsFor=
RequiresMountsFor= is a shortcut for adding requires and after
dependencies to all mount units neeed for the specified paths.

This solves a couple of issues regarding dep loop cycles for encrypted
swap.
2012-04-30 10:52:07 +02:00
Lennart Poettering
5430f7f2bc relicense to LGPLv2.1 (with exceptions)
We finally got the OK from all contributors with non-trivial commits to
relicense systemd from GPL2+ to LGPL2.1+.

Some udev bits continue to be GPL2+ for now, but we are looking into
relicensing them too, to allow free copy/paste of all code within
systemd.

The bits that used to be MIT continue to be MIT.

The big benefit of the relicensing is that closed source code may now
link against libsystemd-login.so and friends.
2012-04-12 00:24:39 +02:00
Kay Sievers
b30e2f4c18 move libsystemd_core.la sources into core/ 2012-04-11 16:03:51 +02:00