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path: root/src/login/logind-session.c
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2013-06-20logind: add infrastructure to keep track of machines, and move to slicesLennart Poettering
- This changes all logind cgroup objects to use slice objects rather than fixed croup locations. - logind can now collect minimal information about running VMs/containers. As fixed cgroup locations can no longer be used we need an entity that keeps track of machine cgroups in whatever slice they might be located. Since logind already keeps track of users, sessions and seats this is a trivial addition. - nspawn will now register with logind and pass various bits of metadata along. A new option "--slice=" has been added to place the container in a specific slice. - loginctl gained commands to list, introspect and terminate machines. - user.slice and machine.slice will now be pulled in by logind.service, since only logind.service requires this slice.
2013-06-10Use stdint.h macros instead of casts to print uint64_t valuesZbigniew Jędrzejewski-Szmek
Casts are visually heavy, and can obscure unwanted truncations.
2013-04-22cgroup: make sure all our cgroup objects have a suffix and are properly escapedLennart Poettering
Session objects will now get the .session suffix, user objects the .user suffix, nspawn containers the .nspawn suffix. This also changes the user cgroups to be named after the numeric UID rather than the username, since this allows us the parse these paths standalone without requiring access to the cgroup file system. This also changes the mapping of instanced units to cgroups. Instead of mapping foo@bar.service to the cgroup path /user/foo@.service/bar we will now map it to /user/foo@.service/foo@bar.service, in order to ensure that all our objects are properly suffixed in the tree.
2013-04-16nspawn: introduce the new /machine/ tree in the cgroup tree and move ↵Lennart Poettering
containers there Containers will now carry a label (normally derived from the root directory name, but configurable by the user), and the container's root cgroup is /machine/<label>. This label is called "machine name", and can cover both containers and VMs (as soon as libvirt also makes use of /machine/). libsystemd-login can be used to query the machine name from a process. This patch also includes numerous clean-ups for the cgroup code.
2013-04-15core: always create /user and /machine top-level cgroup dirsLennart Poettering
This allows clients to put inotify watches on these trees to watch for state changes, without having to wait until these dirs are created. This introduces the new top-level /machine cgroup dir as canonical location where OS containers and VMs shall be located (as discussed with the libvirt folks).
2013-04-10logind: avoid creating stale session state filesFedora systemd team
There were old session state files accumulating in /run/systemd/session. They confused e.g. "reboot", which thought there were still users logged in. The files got created like this: session_stop(Session *s) -> ... unlink(s->state_file); ... seat_set_active(s->seat, NULL) -> session_save(...); /* re-creates the state file we just unlinked */ Fix it simply by clearing the s->started flag earlier to prevent any further writes of the state file (session_save() checks the flag).
2013-04-09logind: introduce an explicit session class for cronjobs and similarLennart Poettering
cronjobs are neither interactive user session, nor lock screens, nor login screens, hence they should get their own class.
2013-04-05Use initalization instead of explicit zeroingZbigniew Jędrzejewski-Szmek
Before, we would initialize many fields twice: first by filling the structure with zeros, and then a second time with the real values. We can let the compiler do the job for us, avoiding one copy. A downside of this patch is that text gets slightly bigger. This is because all zero() calls are effectively inlined: $ size build/.libs/systemd text data bss dec hex filename before 897737 107300 2560 1007597 f5fed build/.libs/systemd after 897873 107300 2560 1007733 f6075 build/.libs/systemd … actually less than 1‰. A few asserts that the parameter is not null had to be removed. I don't think this changes much, because first, it is quite unlikely for the assert to fail, and second, an immediate SEGV is almost as good as an assert.
2013-02-14honor SELinux labels, when creating and writing config filesHarald Hoyer
Also split out some fileio functions to fileio.c and provide a SELinux aware pendant in fileio-label.c see https://bugzilla.redhat.com/show_bug.cgi?id=881577
2013-01-15logind: remove unused variableMichal Sekletar
2012-12-24logind: add support for automatic suspend/hibernate/shutdown on idleLennart Poettering
2012-10-13log: introduce a macro to format message idZbigniew Jędrzejewski-Szmek
The MESSAGE_ID=... stanza will appear in countless number of places. It is just too long to write it out in full each time. Incidentally, this also fixes a typo of MESSSAGE is three places.
2012-09-21logind: check return value, log warning on errorVáclav Pavlín
2012-09-16logind: redefine idleness to start at last activityZbigniew Jędrzejewski-Szmek
Before, after the timeout, a session would be timestamped as idle since 'last activity' + 'idle timeout'. Now, it is timestamped as idle since 'last activity'. Before, after all sessions were idle, the seat would be marked with as idle with the timestamp of the oldest idle session. Now it is marked with the timestamp of the youngest idle session. Both changes seem to me to be closer to natural understanding of idleness: the time since last activity counts.
2012-09-12logind: Ensure the user, seat and session files are updated when the session ↵Colin Guthrie
is closing.
2012-09-03journal: generate structured journal messages for a number of eventsLennart Poettering
2012-07-26log.h: new log_oom() -> int -ENOMEM, use itShawn Landden
also a number of minor fixups and bug fixes: spelling, oom errors that didn't print errors, not properly forwarding error codes, few more consistency issues, et cetera
2012-07-25use "Out of memory." consistantly (or with "\n")Shawn Landden
glibc/glib both use "out of memory" consistantly so maybe we should consider that instead of this. Eliminates one string out of a number of binaries. Also fixes extra newline in udev/scsi_id
2012-07-22logind: fix operation precedence mix-upZbigniew Jędrzejewski-Szmek
Since + has higher precedence than ?:, and u+b is unlikely to be exactly zero, the timestamp would usually be set to IDLE_THRESHOLD_USEC. Fix it by returning either 'last activity', or 'last activity+IDLE_THRESHOLD_USEC'.
2012-06-21logind: introduce a state for session, being one of online, active, closingLennart Poettering
online = logged in active = logged in and session is in the fg closing = nominally logged out but some left-over processes still around Related to: https://bugzilla.gnome.org/show_bug.cgi?id=677556
2012-05-31logind: properly clean up user cgroups when they run emptyLennart Poettering
2012-05-31mkdir: append _label to all mkdir() calls that explicitly set the selinux ↵Kay Sievers
context
2012-05-30logind: optionally handle power, sleep and lid switch eventsLennart Poettering
This takes handling of chassis power and sleep keys as well as the lid switch over from acpid. This logic is enabled by default for power and sleep keys, but not for the lid switch. If a graphical session is in the foreground no action is taken under the assumption that the graphical session does this.
2012-05-21login: minor typo fixLennart Poettering
2012-05-08util: split-out path-util.[ch]Kay Sievers
2012-05-07logind: fix memory leakFrederic Crozat
2012-04-16logind: add shutdown/suspend/idle inhibition frameworkLennart Poettering
2012-04-12relicense to LGPLv2.1 (with exceptions)Lennart Poettering
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.
2012-04-10rename basic.la to shared.la and put selinux deps in shared-selinx.laKay Sievers
Only 34 of 74 tools need libselinux linked, and libselinux is a pain with its unconditional library constructor.
2012-03-22logind: extend comment about X11 socket symlinkLennart Poettering
2012-02-14login: track login class (i.e. one of "user", "greeter", "lock-screen") for ↵Lennart Poettering
each session This introduces the new PAM environment variable XDG_SESSION_CLASS. If not set, defaults to "user". This is useful for apps that want to distuingish real user logins from "fake" ones which just exist to show a gdm login screen or a lock screen.
2012-01-31logind: if we have to stop a session, kill at least its leaderLennart Poettering
2012-01-18exec: introduce ControlGroupPersistant= to make cgroups persistantLennart Poettering
2012-01-18logind: move X11 socketLennart Poettering
2012-01-18logind: simplify session_activate() a bitLennart Poettering
2012-01-03logind: if we can't open /dev/tty0, assume there is no VT subsystem and ↵Lennart Poettering
don't pretend we could do VT switching
2011-12-31logind: move logind into its own subdirectoryLennart Poettering