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Commit Graph

603 Commits

Author SHA1 Message Date
Zbigniew Jędrzejewski-Szmek
c4708f1323 tmpfiles: introduce the concept of unsafe operations
Various operations done by systemd-tmpfiles may only be safely done at
boot (e.g. removal of X lockfiles in /tmp, creation of /run/nologin).
Other operations may be done at any point in time (e.g. setting the
ownership on /{run,var}/log/journal). This distinction is largely
orthogonal to the type of operation.

A new switch --unsafe is added, and operations which should only be
executed during bootup are marked with an exclamation mark in the
configuration files. systemd-tmpfiles.service is modified to use this
switch, and guards are added so it is hard to re-start it by mistake.

If we install a new version of systemd, we actually want to enforce
some changes to tmpfiles configuration immediately. This should now be
possible to do safely, so distribution packages can be modified to
execute the "safe" subset at package installation time.

/run/nologin creation is split out into a separate service, to make it
easy to override.

https://bugzilla.redhat.com/show_bug.cgi?id=1043212
https://bugzilla.redhat.com/show_bug.cgi?id=1045849
2013-12-24 15:48:06 -05:00
Zbigniew Jędrzejewski-Szmek
ef72c1f06e man,units: tmpfiles.d(5) cleanup
Condition for /lib (necessary for split /usr) was missing from the unit.

Some changes which were done in tmpfiles.d(5) were not carried over to
systemd-tmpfiles(1).

Also use markup where possible.
2013-12-24 15:48:06 -05:00
Lennart Poettering
9a8112f5e9 units: systemd-machined now exits on idle and we shouldn't try to restart it then 2013-12-23 20:37:03 +01:00
Lennart Poettering
5326b03f30 units: limit caps for bus proxyd and driverd services 2013-12-23 20:37:00 +01:00
Lennart Poettering
0721804f03 bus: send status message from proxyd to systemd about client we are working for 2013-12-21 05:15:09 +01:00
Lennart Poettering
ccf22d4a10 units: when spawning a getty configure TERM explicitly
This way we can make use of our logic to automatically determine an
appropriate TERM for a specific tty.
2013-12-18 18:21:28 +01:00
Lennart Poettering
74f9e0f203 units: run systemd-networkd.service only if CAP_NET_ADMIN capability is around
This has the effect that systemd-networkd won't run in containers
without network namespacing wher CAP_NET_ADMIN is (usually) not
available. It will still run in containers with network namespacing on
(where CAP_NET_ADMIN is usually avilable).

We might remove this condition check again if networkd provides services
to apps that also are useful in containers lacking network namespacing,
however, as long as it doesn't it should be handled like udevd and be
excluded in such containers.
2013-12-18 18:21:27 +01:00
Lennart Poettering
15e913230c bus: install unit files for new driver service 2013-12-17 15:42:33 +01:00
Kay Sievers
eca7a27add bus: fix typo in systemd-bus-proxyd 2013-12-16 23:25:32 +01:00
Lennart Poettering
77e96a6247 units: properly make bus proxy socket of type Accept=yes 2013-12-16 21:06:57 +01:00
Lennart Poettering
7c9a6f9063 bus: install systemd-bus-proxyd unit files for compatibility with dbus1 2013-12-13 20:49:57 +01:00
Lennart Poettering
b3de50cb07 units: don't run readahead done timers in containers
We don't run the collector in the container either, hence we don't need
to stop it either.
2013-12-11 23:31:34 +01:00
Lennart Poettering
f9a810beda journald: port to sd-event and enable watchdog support 2013-12-11 20:55:09 +01:00
Lennart Poettering
cde93897cd event: hook up sd-event with the service watchdog logic
Adds a new call sd_event_set_watchdog() that can be used to hook up the
event loop with the watchdog supervision logic of systemd. If enabled
and $WATCHDOG_USEC is set the event loop will ping the invoking systemd
daemon right after coming back from epoll_wait() but not more often than
$WATCHDOG_USEC/4. The epoll_wait() will sleep no longer than
$WATCHDOG_USEC/4*3, to make sure the service manager is called in time.

This means that setting WatchdogSec= in a .service file and calling
sd_event_set_watchdog() in your daemon is enough to hook it up with the
watchdog logic.
2013-12-11 18:20:09 +01:00
Lennart Poettering
cde360cd5d units: ship busname units for the bus activated services we ship 2013-12-03 04:28:02 +01:00
Lennart Poettering
1b16c75cd2 units: install busnames.target by default 2013-12-03 01:18:26 +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
4b6141c424 networkd: use Type=notify
Also start earlier during boot.
2013-11-23 02:07:08 +01:00
Lennart Poettering
9f5eb56a13 timer: make timer accuracy configurable
And make it default to 1min
2013-11-21 22:08:20 +01:00
Zbigniew Jędrzejewski-Szmek
9cb74bcb23 man,units: fix installation of systemd-nspawn@.service and add example 2013-11-09 19:02:53 -05:00
Tom Gundersen
f579559b3a networkd: add a basic network daemon
This daemon listens for and configures network devices tagged with
'systemd-networkd'. By default, no devices are tagged so this daemon
can safely run in parallel with existing network daemons/scripts.

Networks are configured in /etc/systemd/network/*.network. The first .network
file that matches a given link is applied. The matching logic is similar to
the one for .link files, but additionally supports matching on interface name.

The mid-term aim is to provide an alternative to ad-hoc scripts currently used
in initrd's and for wired setups that don't change much (e.g., as seen on
servers/and some embedded systems).

Currently, static addresses and a gateway can be configured.

Example .network file:

[Match]
Name=wlp2s0

[Network]
Description=My Network
Gateway=192.168.1.1
Address=192.168.1.23/24
Address=fe80::9aee:94ff:fe3f:c618/64
2013-11-09 23:41:17 +01:00
Lennart Poettering
04d3927924 machinectl: add new command to spawn a getty inside a container 2013-10-31 01:43:38 +01:00
Thomas Bächler
4952a9beff Remove FsckPassNo from systemd-fsck-root.service 2013-10-19 12:23:17 +02:00
Thomas Bächler
64e70e4b86 fstab-generator: Generate explicit dependencies on systemd-fsck@.service instead of using FsckPassNo
[tomegun:
  * order all fsck instances after fsck-root
  * check for OOM
  * added notes in the manpages]
2013-10-19 12:23:17 +02:00
Tom Gundersen
a18535d9e1 static-nodes: don't call mkdir
This is no longer necessary with kmod-15. Bump the requirement.
2013-10-17 19:53:44 +02:00
Lennart Poettering
3990f24765 rfkill: add new rfkill tool to save/restore rfkill state across reboots
This works analogous to the existing backlight and random seed services
2013-10-14 04:31:49 +02:00
Zbigniew Jędrzejewski-Szmek
59fccd8211 execute.c: always set $SHELL
In e6dca81 $SHELL was added to user@.service. Let's
instead provide it to all units which have a user.
2013-10-02 22:23:56 +02:00
Dave Reisner
6c8c92fef7 fix lingering references to /var/lib/{backlight,random-seed}
This should have been part of ef5bfcf668.
2013-10-02 07:51:06 -04:00
David Herrmann
11c2f7a813 logind: run with CAP_SYS_ADMIN
DRM Master access requires CAP_SYS_ADMIN, yay! Add it to the capability
bounding set for systemd-logind. As CAP_SYS_ADMIN actually allows a huge
set of actions, this mostly renders the restriction-set useless. Anyway,
patches are already pending to reduce the restriction on the kernel side.
But these won't really make it into any stable-release so for now we're
stuck with CAP_SYS_ADMIN.
2013-10-01 17:59:44 +02:00
Evan Callicoat
e6dca81441 units: Add SHELL environment variable
With the advent of systemd --user sessions, it's become very interesting to spawn X as a user unit, as well as accompanying processes that may have previously been in a .xinitrc/.xsession, or even just to replace a collection of XDG/GDM/KDM/etc session files with independent systemd --user units. The simplest case here would be to login on a tty, with the traditional /usr/sbin/login "login manager".

However, systemd --user (spawned by user@.service) is at the top level of the slice for the user, and does not inherit any environment variables from the login process. Given the number of common applications which rely on SHELL being set in the environment, it seems like the cleanest way to provide this variable is to set it to %s in the user@.service.

Ideally in the long-term, applications which rely on SHELL being set should be fixed to just grab it from getpwnam() or similar, but until that becomes more common, I propose this simple change to make user sessions a little bit nicer out of the box.
2013-10-01 04:17:31 +02:00
Dave Reisner
8083d486d0 kmod-static-nodes: condition execution on modules.devname 2013-09-28 14:51:39 -04:00
Eelco Dolstra
a0f708053b Fix obsolete references to systemd-random-seed-load.service
This service was merged with systemd-random-seed-save.service in
c35b956d34.
2013-09-23 11:41:30 +02:00
Lennart Poettering
3331234adc nspawn: update unit file
ControlGroup= is obsolete, so let's drop it from the default nspawn unit
file.
2013-09-17 11:59:47 -05:00
Zbigniew Jędrzejewski-Szmek
5c390a4ae0 Add pam configuration to allow user sessions to work out of the box
systemd-logind will start user@.service. user@.service unit uses
PAM with service name 'systemd-user' to perform account and session
managment tasks. Previously, the name was 'systemd-shared', it is
now changed to 'systemd-user'.

Most PAM installations use one common setup for different callers.
Based on a quick poll, distributions fall into two camps: those that
have system-auth (Redhat, Fedora, CentOS, Arch, Gentoo, Mageia,
Mandriva), and those that have common-auth (Debian, Ubuntu, OpenSUSE).
Distributions that have system-auth have just one configuration file
that contains auth, password, account, and session blocks, and
distributions that have common-auth also have common-session,
common-password, and common-account. It is thus impossible to use one
configuration file which would work for everybody. systemd-user now
refers to system-auth, because it seems that the approach with one
file is more popular and also easier, so let's follow that.
2013-09-11 15:35:06 -04:00
Tom Gundersen
40f862e3ae filesystem targets: disable default dependencies
This means we can use default dependencies on mount units without having to get them automatically
ordered before the filesystem targets.

Reported-by: Thomas Baechler <thomas@archlinux.org>
2013-09-11 14:40:58 +02:00
Khem Raj
67c15b9a7a use CAP_MKNOD ConditionCapability
Fixes errors seen when booting VMs on QEMU like

systemd[1]: kmod-static-nodes.service: main process exited, code=exited, status=203/EXEC
systemd[1]: Failed to start Create list of required static device nodes for the current kernel.
systemd[1]: Unit kmod-static-nodes.service entered failed state.

Make sure that mknod capability is available

Signed-off-by: Khem Raj <raj.khem@gmail.com>
2013-08-22 00:52:14 -04:00
Zbigniew Jędrzejewski-Szmek
219061dc52 units: disable kmod-static-nodes.service in containers
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=998122.

Note: upstream kmod has a patch [1] to exit with a warning if
modules.devname is missing. We could use new %v specifier to make this
service conditional on the existence of this file, but this could
mask a kernel installation error, hence we should let kmod run
even if the file doesn't exist.

[1] http://git.kernel.org/cgit/utils/kernel/kmod/kmod.git/commit/?id=ae17710117
2013-08-20 21:18:00 -04:00
Kay Sievers
4bb3a126b7 udev: replace CAP_MKNOD by writable /sys condition 2013-08-17 19:07:42 +02:00
Zbigniew Jędrzejewski-Szmek
d0a2d726f0 units: make fsck units remain after exit
Without this, fsck would be re-run if any other service which pulls
in a target requiring one of the mounts was started after fsck was done
but before the initial transaction was done.

https://bugs.freedesktop.org/show_bug.cgi?id=66784
2013-08-15 15:42:09 -04:00
Thomas Hindoe Paaboel Andersen
5eec7de6ad typo fixes in man and comments 2013-08-15 23:38:09 +02:00
Kay Sievers
04bf3c1a60 sysctl: allow overwriting of values specified in "later" files 2013-08-15 18:43:31 +02:00
Lennart Poettering
875c6e1b48 backlight: instead of syspath use sysname for identifying backlight devices
This makes the description string of the backlight service a bit nicer.
2013-08-14 02:55:57 +02:00
Lennart Poettering
3731acf1ac backlight: add minimal tool to save/restore screen brightness across reboots
As many laptops don't save/restore screen brightness across reboots,
let's do this in systemd with a minimal tool, that restores the
brightness as early as possible, and saves it as late as possible. This
will cover consoles and graphical logins, but graphical desktops should
do their own per-user stuff probably.

This only touches firmware brightness controls for now.
2013-08-14 01:57:02 +02:00
Lennart Poettering
82659fd757 core: optionally send SIGHUP in addition to the configured kill signal
This is useful to fake session ends for processes like shells.
2013-07-30 01:54:59 +02:00
Dave Reisner
ec99834cb0 tmpfiles-setup: exclude /dev prefixes files
Fixes Arch Linux bug: https://bugs.archlinux.org/task/36259
2013-07-24 12:04:00 -04:00
Tom Gundersen
7e380bba1c kmod-static-nodes: remain after exit 2013-07-22 17:11:19 +02:00
Tom Gundersen
ef7e6e0598 systemd-tmpfiles-setup-dev: remain after exit
Without this, tmpfiles-setpu-dev  would be re-run if any other service,
which pulls in basic.target, was started after setup-dev was finished
and before basic.target was active.
2013-07-22 17:01:46 +02:00
Lennart Poettering
bc5cb1d525 machined: run machined at minimal capabilities 2013-07-19 03:49:24 +02:00
Lennart Poettering
085b90af43 units: add references to bus API documentation to logind+machined 2013-07-19 03:49:07 +02:00
Harald Hoyer
956eaf2b8d remove /run/initramfs/root-fsck logic
dracut uses systemd in the initramfs and does not write these files
anymore.

The state of the root fsck is serialized.
2013-07-17 11:33:07 +02:00