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2014-02-20api: in constructor function calls, always put the returned object pointer ↵Lennart Poettering
first (or second) Previously the returned object of constructor functions where sometimes returned as last, sometimes as first and sometimes as second parameter. Let's clean this up a bit. Here are the new rules: 1. The object the new object is derived from is put first, if there is any 2. The object we are creating will be returned in the next arguments 3. This is followed by any additional arguments Rationale: For functions that operate on an object we always put that object first. Constructors should probably not be too different in this regard. Also, if the additional parameters might want to use varargs which suggests to put them last. Note that this new scheme only applies to constructor functions, not to all other functions. We do give a lot of freedom for those. Note that this commit only changes the order of the new functions we added, for old ones we accept the wrong order and leave it like that.
2013-12-28bus: fix a couple of format string mistakesLennart Poettering
2013-12-19bus: fix exit-on-idle for driverdLennart Poettering
2013-12-13event: rework sd-event exit logicLennart Poettering
With this change a failing event source handler will not cause the entire event loop to fail. Instead, we just disable the specific event source, log a message at debug level and go on. This also introduces a new concept of "exit code" which can be stored in the event loop and is returned by sd_event_loop(). We also rename "quit" to "exit" everywhere else. Altogether this should make things more robus and keep errors local while still providing a way to return event loop errors in a clear way.
2013-12-12bus: remove explicit activator-specific flags, the kdbus supports it nowKay Sievers
2013-12-12bus: add SD_BUS_NAME_REPLACE_EXISTING to all activatable services, fix one ↵Kay Sievers
flags conversion
2013-12-12bus: instead of exposing the dbus1 flags when acquiring a name use our own ↵Lennart Poettering
that are closer to kdbus This turns around DO_NOT_QUEUE into QUEUE which implies a more useful default. (And negative options are awful anyway.)
2013-12-11event: hook up sd-event with the service watchdog logicLennart Poettering
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.
2013-12-10bus: introduce "trusted" bus concept and encode access control in object vtablesLennart Poettering
Introduces a new concept of "trusted" vs. "untrusted" busses. For the latter libsystemd-bus will automatically do per-method access control, for the former all access is automatically granted. Per-method access control is encoded in the vtables: by default all methods are only accessible to privileged clients. If the SD_BUS_VTABLE_UNPRIVILEGED flag is set for a method it is accessible to unprivileged clients too. By default whether a client is privileged is determined via checking for its CAP_SYS_ADMIN capability, but this can be altered via the SD_BUS_VTABLE_CAPABILITY() macro that can be ORed into the flags field of the method. Writable properties are also subject to SD_BUS_VTABLE_UNPRIVILEGED and SD_BUS_VTABLE_CAPABILITY() for controlling write access to them. Note however that read access is unrestricted, as PropertiesChanged messages might send out the values anyway as an unrestricted broadcast. By default the system bus is set to "untrusted" and the user bus is "trusted" since per-method access control on the latter is unnecessary. On dbus1 busses we check the UID of the caller rather than the configured capability since the capability cannot be determined without race. On kdbus the capability is checked if possible from the attached meta-data of a message and otherwise queried from the sending peer. This also decorates the vtables of the various daemons we ship with these flags.
2013-12-03bus: make sd_bus_request_name() and sd_bus_release_name() behave more like ↵Lennart Poettering
other calls Instead of returning an enum of return codes, make them return error codes like kdbus does internally. Also, document this behaviour so that clients can stick to it. (Also rework bus-control.c to always have to functions for dbus1 vs. kernel implementation of the various calls.)
2013-11-21bus: rework message handlers to always take an error argumentLennart Poettering
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.
2013-11-21bus: let's simplify things by getting rid of unnecessary bus parametersLennart Poettering
2013-11-18localed: match converted keymaps before legacyZbigniew Jędrzejewski-Szmek
Before, X11 keymap fr-pc105-oss would be converted to fr, even though fr-oss exists. Now, if /usr/lib/kbd/keymaps/xkb/<layout>[-<variant>].map[.gz] exists, <layout>[-<variant>] will be used as the console keymap, falling back to the legacy mappings otherwise. % sudo localectl set-x11-keymap pl pc105 % localectl System Locale: LANG=en_US.UTF-8 VC Keymap: pl (was pl2 before) X11 Layout: pl X11 Model: pc105 % sudo localectl set-x11-keymap fr pc105 oss % localectl System Locale: LANG=en_US.UTF-8 VC Keymap: fr-oss (was fr before) X11 Layout: fr X11 Model: pc105 X11 Variant: oss % sudo localectl set-x11-keymap fr pc105 % localectl System Locale: LANG=en_US.UTF-8 VC Keymap: fr X11 Layout: fr X11 Model: pc105 % sudo localectl set-x11-keymap gb % localectl System Locale: LANG=en_US.UTF-8 VC Keymap: gb (was uk before) X11 Layout: gb
2013-11-18localed: use _cleanup_Zbigniew Jędrzejewski-Szmek
2013-11-12bus: introduce concept of a default bus for each thread and make use of it ↵Lennart Poettering
everywhere We want to emphasize bus connections as per-thread communication primitives, hence introduce a concept of a per-thread default bus, and make use of it everywhere.
2013-11-12bus: introduce concept of a "default" event loop per-thread and make use of ↵Lennart Poettering
it everywhere Try to emphasize a bit that there should be a mapping between event loops and threads, hence introduce a logic that there's one "default" event loop for each thread, that can be queried via "sd_event_default()".
2013-11-12bus: rename sd_bus_send_with_reply_and_block() to sd_bus_call()Lennart Poettering
The call is one of the most important ones we expose, where we place major emphasis on. We should make sure to give it a short, memorable name.
2013-11-07consistently use "int" when retrieving "bool" from bus messagesKay Sievers
2013-11-05localed: mark bus properties as change emittingLennart Poettering
Otherwise sd_bus_emit_properties_changed() will refuse sending out change signals
2013-10-22localed: port from libdbus to libsystemd-busKay Sievers
2013-10-21bus: remove static introspection file exportKay Sievers
2013-10-13ModernizationZbigniew Jędrzejewski-Szmek
Fixes minor leak in error path in device.c.
2013-04-13Remove a few NULLsZbigniew Jędrzejewski-Szmek
Just {} is used in a lot of places now, and there's nothing special abose those few.
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.
2013-04-03shared: rework env file readerLennart Poettering
Implement this with a proper state machine, so that newlines and escaped chars can appear in string assignments. This should bring the parser much closer to shell.
2013-03-18Use bus_maybe_send_reply() where applicableColin Walters
This is a followup to: commit 1a37b9b9043ef83e9900e460a9a1fccced3acf89 It will fix denial messages from dbus-daemon between gdm and systemd-logind on logging into GNOME due to this. See the previous commit for more details.
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
2013-02-13use strneq instead of strncmpThomas Hindoe Paaboel Andersen
2013-02-11env: considerably beef up environment cleaning logicLennart Poettering
Now, actually check if the environment variable names and values used are valid, before accepting them. With this in place are at some places more rigid than POSIX, and less rigid at others. For example, this code allows lower-case environment variables (which POSIX suggests not to use), but it will not allow non-UTF8 variable values. All in all this should be a good middle ground of what to allow and what not to allow as environment variables. (This also splits out all environment related calls into env-util.[ch])
2013-01-04localed: create /etc/X11/xorg.conf.d if neededMichał Bartoszkiewicz
Use mkdir_p_label instead of mkdir_parents_label, so that the final directory component is created too.
2012-10-03dbus: add some more safety checks before accepting data from bus clientsLennart Poettering
2012-09-21locale: make sure that l is freedVáclav Pavlín
2012-09-05localed: system-setup-keyboard is no more on fedoraLennart 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
2012-05-31mkdir: append _label to all mkdir() calls that explicitly set the selinux ↵Kay Sievers
context
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.
2012-02-11logind: introduce CanReboot/CanPowerOff bus callsLennart Poettering
2012-01-16dbus: more efficient implementation of propertiesMichal Schmidt
The way the various properties[] arrays are initialized is inefficient: - only the .data members change at runtime, yet the whole arrays of properties with all the fields are constructed on the stack one by one by the code. - there's duplication, eg. the properties of "org.freedesktop.systemd1.Unit" are repeated in several unit types. Fix it by moving the information about properties into static const sections. Instead of storing the .data directly in the property, store a constant offset from a run-time base. The small arrays of struct BusBoundProperties bind together the constant information with the right runtime information (the base pointer). On my system the code shrinks by 60 KB, data increases by 10 KB.
2011-12-31localed: move sources to subdirectoryKay Sievers