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2015-10-24util: split out escaping code into escape.[ch]Lennart Poettering
This really deserves its own file, given how much code this is now.
2015-10-24path-util: unify how we process paths specified on the command lineLennart Poettering
Let's introduce a common function that makes relative paths absolute and warns about any errors while doing so.
2015-10-24util-lib: get_current_dir_name() can return errors other than ENOMEMLennart Poettering
get_current_dir_name() can return a variety of errors, not just ENOMEM, hence don't blindly turn its errors to ENOMEM, but return correct errors in path_make_absolute_cwd(). This trickles down into a couple of other functions, some of which receive unrelated minor fixes too with this commit.
2015-10-24Merge pull request #1659 from vcaputo/journal_verify_envalidLennart Poettering
journal: s/Envalid/Invalid/
2015-10-23journal: s/Envalid/Invalid/Vito Caputo
2015-10-23Merge pull request #1653 from keszybz/lz4-compress-timeLennart Poettering
Limit test-compress-benchmark to approx. 12 s of runtime
2015-10-23test-compress-benchmark: properly initialize bufferZbigniew Jędrzejewski-Szmek
We were compressing unitialized memory, which should not result in any problems, but is inelegant.
2015-10-23test-compress-benchmark: limit default runtime to 2 seconds per subtestZbigniew Jędrzejewski-Szmek
If both lz4 and xz are enabled, this results in a limit of 2×3×2 s ~= 12 s runtime. Previous implementation started with really small buffer sizes. When combined with a short time limit this resulteded in abysmal results for xz. It seems that the initialization overead is really significant for small buffers. Since xz will not be used by default anymore, this does not seem worth fixing. Instead buffer sizes are changed to run a pseudo-random non-repeating pattern. This should allow reasonable testing for all buffer sizes. For testing, both runtime and the buffer size seed can be specified on the command line. Sufficiently large runtime allows all buffer sizes up to 1MB to be tested.
2015-10-22journalctl: clarify -q optionEvgeny Vereshchagin
-q suppresses info messages too
2015-10-19journald: make sure r is always initializedLennart Poettering
2015-10-19journal: fix bad memory freeingLennart Poettering
2015-10-19tree-wide: add more void casts for various syscall invocationsLennart Poettering
2015-10-15Merge pull request #1527 from keszybz/lz4Lennart Poettering
Using lz4 frame api for coredump files
2015-10-14compress: return errors without logging, do not fake errnoZbigniew Jędrzejewski-Szmek
Logging for compression and decompression is assymetrical on purpose: if compiled without some type of compression, those compression code paths should never be invoked. OTOH, it is possible to encounter unsupported format on decompression, so leave those log_debug statements in, to make it easier to diagnose stuff.
2015-10-14compress: fix mmap error handlingZbigniew Jędrzejewski-Szmek
2015-10-13Merge pull request #1548 from evverx/journalctl-catalog-ops-fixesLennart Poettering
Fix journalctl --dump-catalog, journalctl --list-catalog
2015-10-13Merge pull request #1542 from keszybz/journal-audit-optionalLennart Poettering
Make journald audit socket maskable
2015-10-13journalctl: introduce short options for --since and --untilJan Synacek
Fixes #1514.
2015-10-13journalctl: enable args for --dump-catalog and --list-catalogEvgeny Vereshchagin
`journalctl --dump-catalog ID1 ID2 ...` works fine.
2015-10-13journalctl: open pager for --dump-catalog and --list-catalogEvgeny Vereshchagin
2015-10-12Document journald sockets paths a bit moreZbigniew Jędrzejewski-Szmek
Adding them to the documentation makes it easier to find the right man page for people who are trying to understand where some socket in the filesystem is coming from.
2015-10-12journald: make audit socket optionalZbigniew Jędrzejewski-Szmek
If we were given some sockets through socket activation, and audit socket is not among them, do not try to open it. This way, if the socket unit is disabled, we will not receive audit events. https://bugzilla.redhat.com/show_bug.cgi?id=1227379
2015-10-10test-compress-benchmark: test three cases (zeros, simple, semi-random)Zbigniew Jędrzejewski-Szmek
Existing test would use highly-compressible repeatable input. Two types of input are added: - zeros - random blocks interspersed with zeros The idea is to get more information about behaviour in various cases. On Intel Xeon the results are: % ./test-compress-benchmark XZ/zeros: compressed & decompressed 2535301373 bytes in 32.56s (74.26MiB/s), mean compresion 99.96%, skipped 3160 bytes LZ4/zeros: compressed & decompressed 2535304362 bytes in 1.16s (2088.69MiB/s), mean compresion 99.60%, skipped 171 bytes XZ/simple: compressed & decompressed 2535300963 bytes in 30.42s (79.48MiB/s), mean compresion 99.95%, skipped 3570 bytes LZ4/simple: compressed & decompressed 2535303543 bytes in 1.22s (1978.86MiB/s), mean compresion 99.60%, skipped 990 bytes XZ/random: compressed & decompressed 381756649 bytes in 60.02s (6.07MiB/s), mean compresion 39.64%, skipped 27813723 bytes LZ4/random: compressed & decompressed 2507385036 bytes in 0.97s (2477.52MiB/s), mean compresion 54.77%, skipped 27919497 bytes If someone has ideas for more realistic test cases, they can be easily added to this framework.
2015-10-10coredump: use lz4frame api to compress coredumpsZbigniew Jędrzejewski-Szmek
This converts the stream compression to use the new lz4frame api, compatible with lz4cat. Previous code used custom headers, so the compressed file was not compatible with lz4 command line tools. I considered this the last blocker to using lz4 by default. Speed seems to be reasonable, although a bit (a few percent) slower than the lz4 binary, even though compression is the same. I don't consider this important. It could be caused by the overhead of library calls, but is probably caused by slightly different buffer sizes or such. The code in this patch uses mmap, since since this allows the buffer to be reused while not making the code more complicated at all. In my testing, this version is noticably faster (~20%) than a naive single-buffered version. mmap can cause the program to be killed with SIGBUS, if the underlying file is truncated or a disk error occurs. We only use this from within coredump and coredumpctl, so I don't consider this an issue. Old decompression code is retained and is used if the new code fails indicating a format error. There have been reports of various smaller distributions using previous lz4 code, i.e. the old format, and it is nice to provide backwards compatibility. We can remove the legacy code in a few versions. The way that blobs are compressed in the journal is not affected.
2015-10-06siphash24: unify APITom Gundersen
Make the API of the new helpers more similar to the old wrapper. In particular we now return the hash as a byte string to avoid any endianness problems.
2015-10-06Merge pull request #1465 from teg/siphash24Lennart Poettering
hashmap/siphash24: refactor hash functions
2015-10-05hashmap: refactor hash_funcTom Gundersen
All our hash functions are based on siphash24(), factor out siphash_init() and siphash24_finalize() and pass the siphash state to the hash functions rather than the hash key. This simplifies the hash functions, and in particular makes composition simpler as calling siphash24_compress() repeatedly on separate chunks of input has the same effect as first concatenating the input and then calling siphash23_compress() on the result.
2015-10-02journal: rework vacuuming logicLennart Poettering
Implement a maximum limit on number of journal files to keep around. Enforcing a limit is useful on this since our performance when viewing pays a heavy penalty for each journal file to interleve. This setting is turned on now by default, and set to 100. Also, actully implement what 348ced909724a1331b85d57aede80a102a00e428 promised: use whatever we find on disk at startup as lower bound on how much disk space we can use. That commit introduced some provisions to implement this, but actually never did. This also adds "journalctl --vacuum-files=" to vacuum files on disk by their number explicitly.
2015-10-02journal: use automatic clenup for ACL typesLennart Poettering
2015-10-02journal: improve some messagesLennart Poettering
Indicate that we are ignoring errors, when we ignore them, and log that at LOG_WARNING level. Use the right error code for the log message.
2015-10-02journal: simplify things by using the LESS_BY() macroLennart Poettering
2015-10-02journal: don't affect atime of journal files when vacuumingLennart Poettering
Let's try to use O_NOATIME if we can when vacuuming old journal files, if we have the permissions for it, so that vacuuming doesn't count as proper journal read access.
2015-10-02journal: prefer stack allocationLennart Poettering
2015-10-02journal: make journal_file_close() return NULLLennart Poettering
The way it is customary everywhere else in our sources.
2015-10-02journal: port over to fd_getcrtime_at()Lennart Poettering
Let's use fd_getcrtime_at(), since that *at() family of calls is how we read the rest of the file metadata, too.
2015-10-01Merge pull request #1430 from evverx/driver-syslogLennart Poettering
journald: add syslog fields for driver messages
2015-10-01Merge pull request #1426 from poettering/log-syntaxDaniel Mack
logging fixes and more
2015-10-01journald: add syslog fields for driver messagesEvgeny Vereshchagin
2015-09-30tree-wide: remove a number of invocations of strerror() and replace by %mLennart Poettering
Let's clean up our tree a bit, and reduce invocations of the thread-unsafe strerror() by replacing it with printf()'s %m specifier.
2015-09-30journalctl: add --rotate optionEvgeny Vereshchagin
shortcut for `systemctl kill --kill-who main --signal SIGUSR2 systemd-journald`
2015-09-29bus-util: rename bus_open_transport() to bus_connect_transport()Lennart Poettering
In sd-bus, the sd_bus_open_xyz() family of calls allocates a new bus, while sd_bus_default_xyz() family tries to reuse the thread's default bus. bus_open_transport() sometimes internally uses the former, sometimes the latter family, but suggests it only calls the former via its name. Hence, let's avoid this confusion, and generically rename the call to bus_connect_transport(). Similar for all related calls. And while we are at it, also change cgls + cgtop to do direct systemd connections where possible, since all they do is talk to systemd itself.
2015-09-29journal-cat: various modernizationsLennart Poettering
2015-09-29journal-cat: return a correct error, not -1Lennart Poettering
2015-09-29util: introduce common version() implementation and use it everywhereLennart Poettering
This also allows us to drop build.h from a ton of files, hence do so. Since we touched the #includes of those files, let's order them properly according to CODING_STYLE.
2015-09-29tree-wide: port more code to use send_one_fd() and receive_one_fd()Lennart Poettering
Also, make it slightly more powerful, by accepting a flags argument, and make it safe for handling if more than one cmsg attribute happens to be attached.
2015-09-22cgtop: underline table headerLennart Poettering
Let's underline the header line of the table shown by cgtop, how it is customary for tables. In order to do this, let's introduce new ANSI underline macros, and clean up the existing ones as side effect.
2015-09-10tree-wide: never use the off_t unless glibc makes us use itLennart Poettering
off_t is a really weird type as it is usually 64bit these days (at least in sane programs), but could theoretically be 32bit. We don't support off_t as 32bit builds though, but still constantly deal with safely converting from off_t to other types and back for no point. Hence, never use the type anymore. Always use uint64_t instead. This has various benefits, including that we can expose these values directly as D-Bus properties, and also that the values parse the same in all cases.
2015-09-09Merge pull request #1218 from poettering/safe-fcloseDaniel Mack
util: introduce safe_fclose() and port everything over to it
2015-09-09util: introduce safe_fclose() and port everything over to itLennart Poettering
Adds a coccinelle script to port things over automatically.
2015-09-09tree-wide: update empty-if coccinelle script to cover empty-while and moreLennart Poettering
Let's also clean up single-line while and for blocks.