tree-wide: remove Emacs lines from all files This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.

core: when saving timer unit time values, store them in raw µs Let's simplify things a bit, and make sure we don't lose accuracy.

core: fix handling of AccuracyUSec and RandomDelayUSec bus properties Clear up some confusion regarding the USec and Sec suffixes we use. In configuration files we usually use the Sec suffix, to indicate the implied time unit if none is specified. The respective bus properties however use the USec property, since they expose 64bit unsigned integers containing time in µs. Before this patch timer units exposed a bus property AccuracyUSec (which hence is the correct name) but when parsing transient property data would look for AccuracySec instead (which is incorrect). This patch ensures we look for AccuracySec correctly, but keeps the code for AccuracyUSec in place for compatibility, but adds a warning to ensure that apps are updated to use the right property.

core: rename Random* to RandomizedDelay* The name RandomSec is too generic: "Sec" just specifies the default unit type, and "Random" by itself is not enough. Rename to something that should give the user general idea what the setting does without looking at documentation.

core: add new RandomSec= setting for time units This allows configuration of a random time on top of the elapse events, in order to spread time events in a network evenly across a range.

core: add RemainAfterElapse= setting to timer units Previously, after a timer unit elapsed we'd leave it around for good, which has the nice benefit that starting a timer that shall trigger at a specific point in time multiple times will only result in one trigger instead of possibly many. With this change a new option RemainAfterElapse= is added. It defaults to "true", to mimic the old behaviour. If set to "false" timer units will be unloaded after they elapsed. This is specifically useful for transient timer units.

util-lib: split out allocation calls into alloc-util.[ch]

Bug #944: Deletion of unnecessary checks before a few calls of systemd functions The following functions return immediately if a null pointer was passed. * calendar_spec_free * link_address_free * manager_free * sd_bus_unref * sd_journal_close * udev_monitor_unref * udev_unref It is therefore not needed that a function caller repeats a corresponding check. This issue was fixed by using the software Coccinelle 1.0.1.

remove unused includes This patch removes includes that are not used. The removals were found with include-what-you-use which checks if any of the symbols from a header is in use.

timer: timer can be a transient unit

timer: support timers that can resume the system from suspend

systemctl: show last trigger time in "systemctl list-timers"

timer: add timer persistance (aka anacron-like behaviour)

dbus-timer: fix bus_timer_vtable to have the correct times next_elapse_monotonic() should map to the "NextElapseUSecMonotonic" property and next_elapse_realtime() to "NextElapseUSecRealtime" one. This makes "systemctl list-timers" compute and show the correct times. https://bugs.freedesktop.org/show_bug.cgi?id=75272

core: no need to list properties for PropertiesChanged messages anymore Since the vtable includes this information anyway, let's just use that

bus: decorate the various object vtables with SD_BUS_VTABLE_PROPERTY_CONST where appropriate

timer: make timer accuracy configurable And make it default to 1min

bus: rework message handlers to always take an error argument Message handler callbacks can be simplified drastically if the dispatcher automatically replies to method calls if errors are returned. Thus: add an sd_bus_error argument to all message handlers. When we dispatch a message handler and it returns negative or a set sd_bus_error we send this as message error back to the client. This means errors returned by handlers by default are given back to clients instead of rippling all the way up to the event loop, which is desirable to make things robust. As a side-effect we can now easily turn the SELinux checks into normal function calls, since the method call dispatcher will generate the right error replies automatically now. Also, make sure we always pass the error structure to all property and method handlers as last argument to follow the usual style of passing variables for return values as last argument.

core: convert PID 1 to libsystemd-bus This patch converts PID 1 to libsystemd-bus and thus drops the dependency on libdbus. The only remaining code using libdbus is a test case that validates our bus marshalling against libdbus' marshalling, and this dependency can be turned off. This patch also adds a couple of things to libsystem-bus, that are necessary to make the port work: - Synthesizing of "Disconnected" messages when bus connections are severed. - Support for attaching multiple vtables for the same interface on the same path. This patch also fixes the SetDefaultTarget() and GetDefaultTarget() bus calls which used an inappropriate signature. As a side effect we will now generate PropertiesChanged messages which carry property contents, rather than just invalidation information.

bus: remove static introspection file export

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.

dbus: properly serialize calendar timer data As it turns out the bus properties for timer units wre really broken, so let's clean this up for good and properly add calendar timer serialization. We really should get that right before finalizing the bus API documentation in the wiki...

dbus: fix serialization of calendar timers

timer: implement calendar time events

selinux: rework selinux access check logic a) Instead of parsing the bus messages inside of selinux-access.c simply pass everything pre-parsed in the functions b) implement the access checking with a macro that resolves to nothing on non-selinux builds c) split out the selinux checks into their own sources selinux-util.[ch] d) this unifies the job creation code behind the D-Bus calls Manager.StartUnit() and Unit.Start().

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.

move libsystemd_core.la sources into core/