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2015-11-17tree-wide: make macros for converting fds to pointers and back generic and ↵Lennart Poettering
use them everywhere
2015-11-17journald: trivial simplificationLennart Poettering
2015-11-17coredump: modernize error logging a bitLennart Poettering
2015-11-17tree-wide: use right cast macros for UIDs, GIDs and PIDsLennart Poettering
2015-11-17Merge pull request #1923 from zonque/siphashLennart Poettering
siphash24: let siphash24_finalize() and siphash24() return the result…
2015-11-16siphash24: let siphash24_finalize() and siphash24() return the result directlyDaniel Mack
Rather than passing a pointer to return the result, return it directly from the function calls. Also, return the result in native endianess, and let the callers care about the conversion. For hash tables and bloom filters, we don't care, but in order to keep MAC addresses and DHCP client IDs stable, we explicitly convert to LE.
2015-11-16tree-wide: sort includesThomas Hindoe Paaboel Andersen
Sort the includes accoding to the new coding style.
2015-11-16siphash24: change result argument to uint64_tMartin Pitt
Change the "out" parameter from uint8_t[8] to uint64_t. On architectures which enforce pointer alignment this fixes crashes when we previously cast an unaligned array to uint64_t*, and on others this should at least improve performance as the compiler now aligns these properly. This also simplifies the code in most cases by getting rid of typecasts. The only place which we can't change is struct duid's en.id, as that is _packed_ and public API, so we can't enforce alignment of the "id" field and have to use memcpy instead.
2015-11-12journald: fix accuracy of watchdog timer eventLennart Poettering
Adding 3/4th of the watchdog frequency as accuracy on top of 1/2 of the watchdog frequency means we might end up at 5/4th of the frequency which means we might miss the message from time to time. Maybe fixes #1804
2015-11-12journald: rework --sync/--rotate logic to use CLOCK_MONOTONIC timestamp filesLennart Poettering
Previously, we'd rely on the mtime timestamps of the touch files to see if our sync/rotation requests were already suppressed. This means we rely on CLOCK_REALTIME timestamps. With this patch we instead store the CLOCK_MONOTONIC timestamp *in* the touch files, and avoid relying on mtime. This should make things more reliable when the clock or underlying mtime granularity is not very good. This also adds warning messages if writing any of the flag files fails.
2015-11-11journalctl: change repeated if checks into switch blocksLennart Poettering
No functional changes.
2015-11-11journalctl: refuse to --machine= in combination with --flush, --sync or --rotateLennart Poettering
2015-11-11journalctl: make --rotate synchronous, tooLennart Poettering
Of course, ideally we'd just use normal synchronous bus calls, but this is out of the question as long as we rely on dbus-daemon (which logs to journald, and thus cannot use to avoid cyclic sync loops). Hence, instead, reuse the wait logic already implemented for --sync, and use a signal in one direction, and a mtime watch file for the reply.
2015-11-11journalctl: add new --sync switch for syncing the journal to diskLennart Poettering
With this new "--sync" switch we add a synchronous way to sync everything queued to disk, and return only after that's complete. This command gives the guarantee that anything queued before has hit the disk before the command returns. While we are at it, also improve the man pages and help text for journalctl a bit.
2015-11-10journald: be less picky when receiving epoll eventsLennart Poettering
The event might be flagged with stuff we don't expect, hence don't be needlessly picky, just rely on the kernel passing us sensible events.
2015-11-10journald: never accept fds from file systems with mandatory locking enabledLennart Poettering
This is pretty much a work-around for a security vulnerability in kernels that allow unprivileged user namespaces. Fixes #1822.
2015-11-10journald: dispatch SIGTERM/SIGINT with a low priorityLennart Poettering
Let's make sure to process all queued log data before exiting, so that we don't unnecessary lose messages when shutting down. https://github.com/systemd/systemd/pull/1812#issuecomment-155149871
2015-11-10defs: rework CONF_DIRS_NULSTR() macroLennart Poettering
The macro is generically useful for putting together search paths, hence let's make it truly generic, by dropping the implicit ".d" appending it does, and leave that to the caller. Also rename it from CONF_DIRS_NULSTR() to CONF_PATHS_NULSTR(), since it's not strictly about dirs that way, but any kind of file system path. Also, mark CONF_DIR_SPLIT_USR() as internal macro by renaming it to _CONF_PATHS_SPLIT_USR() so that the leading underscore indicates that it's internal.
2015-11-09Merge pull request #1820 from michich/errno-v2Daniel Mack
[v2] treewide: treatment of errno and other cleanups
2015-11-09treewide: apply errno.cocciMichal Schmidt
with small manual cleanups for style.
2015-11-06journal: reduce minimum journal file size to 512 KiBMichael Olbrich
For low end embedded systems 4 MiB for each journal file is a lot of memory. Journald will use at least 512 KiB even if JOURNAL_FILE_SIZE_MIN is set to less than that so just use 512 KiB.
2015-11-05journal: posix_fallocate() does not set errnoMichal Schmidt
manpage says: posix_fallocate() returns zero on success, or an error number on failure. Note that errno is not set.
2015-11-05treewide: use the negative error codes returned by our functionsMichal Schmidt
Our functions return negative error codes. Do not rely on errno being set after calling our own functions.
2015-11-05journal: fix incorrect errno reportingMichal Schmidt
pread() returns -1 on error and sets errno. Do not use the -1 as errno.
2015-11-05journal: use int64_t instead of long for catalog file sizeMichal Schmidt
This replaces the use of ftell() with ftello() for 64-bit size on all archs. Also drops a pointless check for NULL before calling strbuf_cleanup().
2015-11-05journal: drop unnecessary write_catalog() parameterMichal Schmidt
write_catalog() use the hashmap only to get its size. The size is already given in parameter 'n'.
2015-11-03journal: restore watchdog supportLennart Poettering
2015-11-03journalctl: when we fail to open a journal file, print whyLennart Poettering
When we enumerate journal files and encounter an invalid one, remember which this, and show it to the user. Note the possibly slightly surprising logic here: we store only one path per error code. This means we show all error kinds but not every actual error we encounter. This has the benefit of not requiring us to keep a potentially unbounded list of errors with their sources around, but can still provide a pretty complete overview on the errors we encountered. Fixes #1669.
2015-11-03sd-journal: various clean-ups and modernizationsLennart Poettering
- Always print a debug log message about files and directories we cannot open right when it happens instead of the caller, thus reducing the number of places where we need to generate the debug message. - Always push the errors we encounter immediately into the error set, when we run into them, instead of in the caller. Thus, we never forget to push them in. - Use stack instead of heap memory where we can. - Make remove_file() void, since it cannot fail anyway and always returned 0. - Make local machine check of journal directories explicit in a function, to make things more readable. - Port to all directory listing loops FOREACH_DIRENT_ALL() - sd-daemon is library code, hence never log at higher log levels than LOG_DEBUG.
2015-11-03journalctl: continue operation, even if we run into an invalid fileLennart Poettering
2015-11-03journal: return better error for empty filesZbigniew Jędrzejewski-Szmek
When reading stuff, we should only return EIO when an actual read error occured, not when we don't like the data for whatever reason. We already return ENODATA for all other kinds of file truncation, hence do the same for the most obvious kind, so that callers know what ENODATA means.
2015-11-02Merge pull request #1725 from ssahani/word-journalDaniel Mack
sd-journal.c: port to extract_first_word
2015-11-01journald: never block when sending messages on NOTIFY_SOCKET socketLennart Poettering
Otherwise we might run into deadlocks, when journald blocks on the notify socket on PID 1, and PID 1 blocks on IPC to dbus-daemon and dbus-daemon blocks on logging to journald. Break this cycle by making sure that journald never ever blocks on PID 1. Note that this change disables support for event loop watchdog support, as these messages are sent in blocking style by sd-event. That should not be a big loss though, as people reported frequent problems with the watchdog hitting journald on excessively slow IO. Fixes: #1505.
2015-11-01sd-journal.c: port to extract_first_wordSusant Sahani
2015-10-27util-lib: move inotify-related definitions to fs-util.[ch]Lennart Poettering
2015-10-27util-lib: split out allocation calls into alloc-util.[ch]Lennart Poettering
2015-10-27util-lib: split out globbing related calls into glob-util.[ch]Lennart Poettering
2015-10-27util-lib: split out printf() helpers to stdio-util.hLennart Poettering
2015-10-27io-util.h: move iovec stuff from macro.h to io-util.hLennart Poettering
2015-10-27util-lib: split out syslog-related calls into syslog-util.[ch]Lennart Poettering
2015-10-27util-lib: move /proc/cmdline parsing code to proc-cmdline.[ch]Lennart Poettering
2015-10-27src/basic: rename audit.[ch] → audit-util.[ch] and capability.[ch] → ↵Lennart Poettering
capability-util.[ch] The files are named too generically, so that they might conflict with the upstream project headers. Hence, let's add a "-util" suffix, to clarify that this are just our utility headers and not any official upstream headers.
2015-10-27util-lib: move more locale-related calls to locale-util.[ch]Lennart Poettering
2015-10-27util-lib: move string table stuff into its own string-table.[ch]Lennart Poettering
2015-10-27util-lib: move a number of fs operations into fs-util.[ch]Lennart Poettering
2015-10-27util-lib: split out file attribute calls to chattr-util.[ch]Lennart Poettering
2015-10-27util-lib: split xattr-related calls into xattr-util.[ch]Lennart Poettering
2015-10-27util-lib: introduce dirent-util.[ch] for directory entry callsLennart Poettering
Also, move a couple of more path-related functions to path-util.c.
2015-10-27util-lib: split out resource limits related calls into rlimit-util.[ch]Lennart Poettering
2015-10-27util-lib: move more file I/O related calls into fileio.[ch]Lennart Poettering