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2015-05-29udevd: notify - expose a bit more of the internal stateTom Gundersen
This notifies PID1 about config being flushed, about shutdown starting and shutdown finalizing.
2015-05-29udevd: notify - keep NOTIFY_SOCKET aroundTom Gundersen
Only unset the env var in the workers, but otherwise keep it around in the main daemon.
2015-05-29udevd: modernize status notificationTom Gundersen
Only log about starting in daemon mode, rely on PID1 to log this in notify mode. Also explicitly set the STATUS variable, as is done in notify mode as is done for other serivecs.
2015-05-29udevd: event - port spawn_wait() to sd-eventTom Gundersen
This allows us to drop the special sigterm handling in spawn_wait() as this will now be passed directly to the worker event loop. We now log failing spawend processes at 'warning' level, and timeouts are in terms of CLOCK_BOOTTIME when available, otherwise the behavior is unchanged.
2015-05-29udevd: move main-loop to sd-eventTom Gundersen
2015-05-29udevd: explicitly try to start event queue when it may be possibleTom Gundersen
Rather than trying to schedule new events on every main-loop iteration, do it explicitly when processing an event finishes, a worker is killed, a new uevent is received, or the event queue is explicitly restarted.
2015-05-29udevd: only check for changed config before scheduling new eventsTom Gundersen
Also move builtin and rules initialization from main loop to event_queue_start(). No functional change.
2015-05-29udevd: introduce manager_exit() and manager_reload()Tom Gundersen
The behavior is mostly unchanged, but rather than only ever calling these functions at fixed points in the event loop, they are called directly whenever they are invoked.
2015-05-27udevd: fix SIGCHLD handling in --daemon modeTom Gundersen
We were listening for SIGCHLD in the wrong process.
2015-05-26udev: fix inotify handlingDavid Herrmann
This partly reverts: commit 6d1b1e0bc6bd020218afc5f05286bf372be283d5 Author: Tom Gundersen <teg@jklm.no> Date: Sun May 24 15:10:04 2015 +0200 udevd: worker - fully clean up unnecessary fds The inotify-fd _is_ used in the workers, so don't close it! Have a look at udev-watch.c, which keeps track of the inotify-fd as a global variable (ugh!).
2015-05-24udevd: event - fix event queue in daemenozied modeTom Gundersen
We would enforce that events could only be added to the queue from the main process, but that brake in daemonized mode. Relax the restriction to only allow one process to add events to the queue. Reported by Mantas Mikulėnas.
2015-05-24udevd: worker - modernize a bitTom Gundersen
Initialize structs when declaring rather than using memzero().
2015-05-24udevd: worker - fully clean up unnecessary fdsTom Gundersen
These are only ever used in the parent process, so close them early in the worker.
2015-05-22udev/net_id: Only read the first 64 bytes of PCI config spaceJason S. McMullan
The original code used fread(), which on some libc implementions (ie glibc 2.17) would pre-read a full 4K (PAGE_SIZE) of the PCI config space, when only 64 bytes were requested. I have recently come across PCIe hardware which responds with Completion Timeouts when accesses above 256 bytes are attempted. This can cause server systems with GHES/AEPI support to cause and immediate kernel panic due to the failed PCI transaction. This change replaces the buffered fread() with an explict unbuffered read() of 64 bytes, which corrects this issue by only reading the guaranteed first 64 bytes of PCIe config space.
2015-05-21nspawn: finish user namespace supportLennart Poettering
2015-05-21udev: link-config - fix corruptionTom Gundersen
The parser used for MTU and Speed expects them to be size_t, not unsigned int. This caused a corruption in the rest of the structure. Reported by David O Neill <david.m.oneill@intel.com>.
2015-05-18udevd: main - use _exit() when daemonizingTom Gundersen
Makes it a bit clearer what is going on, rather than jumping to the end of main(). No functional change.
2015-05-18udevd: main - reshuffleTom Gundersen
First parse config, then sanitize environment before donig any further setup. No functional change.
2015-05-18udevd: rename on_reque_{exit,reload} to on_sig{term,chld}Tom Gundersen
No functional change.
2015-05-18udevd: introduce on_event_timeout{,_warning}Tom Gundersen
This uses kill_and_sigcont() instead of kill(), otherwise no functional change.
2015-05-18udevd: process all SIGCHLD events every time the handler is invokedTom Gundersen
We were returning rather than continuing in some cases. The intention was always to fully process all pending events before returning from the SIGCHLD handler. Restore this behaviour.
2015-05-18udevd: init/exit the builtins in manager_new/freeTom Gundersen
No functional change.
2015-05-18udevd: move file descriptors to ManagerTom Gundersen
No functional change.
2015-05-18ata_id: drop spurious spaceLennart Poettering
2015-05-16udevd: queue - update queue state when events are queued/freedTom Gundersen
This way it is more obvious that the queue flag file is always up-to-date. Moreover, we only have to touch/unlink it when the first/last event is allocated/freed.
2015-05-16udevd: on_worker - distinguish between EINTR and EAGAINTom Gundersen
EAGAIN means there are no more messages to read, so give up. EINTR means we got interrupted reading a message, so try again.
2015-05-16udevd: worker - use loop_write() rather than send()Tom Gundersen
When notifying the main daemon about event completion, make sure the message is sent successfully, and not interrupted.
2015-05-16udevd: net - fix leak in .link configTom Gundersen
Path, Driver and Type are now strv rather than strings, so free them properly.
2015-05-15udev-ctrl: make _unref() always return NULLTom Gundersen
Bring this in line with the rest of the codebase.
2015-05-12udevd: manager - move a few global variables into the Manager objectTom Gundersen
2015-05-12udevd: pass a Manager objcet to event handlersTom Gundersen
Stop relying on global variables in event handlers, and move them all to a Manager object instead.
2015-05-12udevd: remove stale commentTom Gundersen
2015-05-12udevd: explicitly update queue file before answering to pingTom Gundersen
This avoids updating the flag files twice for every loop, and also removes another dependency in the main-loop, so we are freer to reshufle it as we want.
2015-05-12udevd: explicitly read out uevents we create ourselvesTom Gundersen
Rather than skippling ctrl handling whenever we have handlede inotify events (and hence may have synthesized a 'change' event), just call the uevent handling explicitly from on_inotify() so that the event queue is up-to-date.
2015-05-12udevd: move to sd-event-style event handlersTom Gundersen
2015-05-12udevd: make udev_ctrl_connection globalTom Gundersen
This allows us to simplify the ctrl_msg handler. Eventually all this global state should move to a Manager object or so.
2015-05-11treewide: Correct typos and spell plural of bus consistentTorstein Husebø
2015-05-07udevd: remove unused functionThomas Hindoe Paaboel Andersen
2015-05-06udevd: don't explicitly count the number of workersTom Gundersen
Simply query the size of the hashmap keeping all the worker contexts instead.
2015-05-06udevd: keep workers in a hashmap rather than a listTom Gundersen
This makes the code somewhat more readable.
2015-05-06udevd: worker - drop reference countingTom Gundersen
Make the worker context have the same life-span as the worker process. It is created on fork() and free'd on SIGCHLD. The change means that we can get worker_returned() for a worker context that is no longer around, this is not a problem and we can just drop the message. The only use for worker_returned() is to know to reschedule events to workers that are still around, so if the worker has already exited it is not important to keep track of. We still print a debug statement in this case to be on the safe side.
2015-05-06udev: fix weird coding-styleDavid Herrmann
Eeeew!
2015-05-06udevd: worker - allow passing NULL to worker_unref()Tom Gundersen
2015-05-06udevd: worker - use _exit() rather than exit()Tom Gundersen
Follow the coding style and avoid the exit handlers.
2015-05-06udevd: modernize error handlingTom Gundersen
We never return magic exit codes, but just EXIT_FAILUER or EXIT_SUCCESS.
2015-05-06udevd: use kernel cmdline parserTom Gundersen
2015-05-06udevd: worker - move some fields from the worker to the eventTom Gundersen
2015-05-06udevd: worker - introduce worker_attach_event()Tom Gundersen
2015-05-06udevd: worker - make refcounting clearerTom Gundersen
Take and drop explicit references where it makes sense.
2015-05-06udevd: worker - only allocate the worker struct in the main processTom Gundersen
This is not used in the worker, so avoid having to free it there.