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2015-08-18journal: remove error check that never happensThomas Hindoe Paaboel Andersen
remove_directory will always return 0 so this can never happen. Besides that, d->path and d are freed so we would end up with a null pointer dereference anyway.
2015-08-17Merge pull request #976 from elfring/Remove_unnecessary_checks2Lennart Poettering
Delete unnecessary checks before some function calls
2015-08-17Bug #944: Deletion of unnecessary checks before a few calls of systemd functionsMarkus Elfring
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.
2015-08-17journalctl: make sure 'journalctl -f -t unmatched' blocksStef Walter
Previously the following command: $ journalctl -f -t unmatchedtag12345 ... would block when called with criteria that did not match any journal lines. Once log lines appeared that matched the criteria they were displayed. Commit 02ab86c732576a71179ce12e97d44c289833236d broke this behavior and the journal was not followed, but the command exits with '-- No entries --' displayed. This commit fixes the issue. More information downstream: https://bugzilla.redhat.com/show_bug.cgi?id=1253649
2015-08-17Bug #944: Deletion of unnecessary checks before calls of the function "free"Markus Elfring
The function "free" is documented in the way that no action shall occur for a passed null pointer. It is therefore not needed that a function caller repeats a corresponding check. http://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first This issue was fixed by using the software Coccinelle 1.0.1.
2015-08-05Merge branch 'hostnamectl-dot-v2'Zbigniew Jędrzejewski-Szmek
Manual merge of https://github.com/systemd/systemd/pull/751.
2015-08-05hostname-util: get rid of unused parameter of hostname_cleanup()Zbigniew Jędrzejewski-Szmek
All users are now setting lowercase=false.
2015-08-05journald: fix count of object meta fieldsLennart Poettering
There are 12 object meta fields created in dispatch_message_real(), but we only allocated space for 11. Fix this. Fixes #866.
2015-07-31tree-wide: introduce mfree()David Herrmann
Pretty trivial helper which wraps free() but returns NULL, so we can simplify this: free(foobar); foobar = NULL; to this: foobar = mfree(foobar);
2015-07-29tree-wide: port everything over to fflush_and_check()Lennart Poettering
Some places invoked fflush() directly with their own manual error checking, let's unify all that by using fflush_and_check(). This also unifies the general error paths of fflush()+rename() file writers.
2015-07-24tree-wide: do not use _cleanup_free_ on const pointersDaniel Mack
free() cannot be used with const pointers. However, our _cleanup_free_ handler features cast logic that hides that qualifier, so we don't get a warning.
2015-07-24journal: uppercase first character in verify error messagesLennart Poettering
In the english language the first character of a sentence is supposed to be uppercase. Let's make sure this also applies to the journal verification error messages.
2015-07-24journalctl: properly detect empty journal filesLennart Poettering
When we encounter a journal file with exactly zero entries, print a nice message and exit, and don't print a weird error message.
2015-07-24journal: explain the error when we find a non-DATA object that is compressedLennart Poettering
Only objects of type DATA may be compressed, generate a message about that, like we do for all other errros.
2015-07-24journal: when verifying journal files, handle empty ones nicelyLennart Poettering
A journal file that carries no objects should be considered valid.
2015-07-24journal: avoid mapping empty data and field hash tablesLennart Poettering
When a new journal file is created we write the header first, then sync and only then create the data and field hash tables in them. That means to other processes it might appear that the files have a valid header but not data and field hash tables. Our reader code should be able to deal with this. With this change we'll not map the two hash tables right-away after opening a file for reading anymore (because that will of course fail if the objects are missing), but delay this until the first time we access them. On top of that, when we want to look something up in the hash tables and we notice they aren't initialized yet, we consider them empty. This improves handling of some journal files reported in #487.
2015-07-24journal-verify: don't hit SIGFPE when determining progressLennart Poettering
If we determine the progress based on a number of objects available, don't blindly devide by the number of objects, given that it might be 0.
2015-07-23journal: reword msg about enforced size limits a bitLennart Poettering
http://lists.freedesktop.org/archives/systemd-devel/2015-July/033574.html
2015-07-04Merge pull request #485 from poettering/sd-bus-flush-close-unrefDavid Herrmann
sd-bus: introduce new sd_bus_flush_close_unref() call
2015-07-03sd-bus: introduce new sd_bus_flush_close_unref() callLennart Poettering
sd_bus_flush_close_unref() is a call that simply combines sd_bus_flush() (which writes all unwritten messages out) + sd_bus_close() (which terminates the connection, releasing all unread messages) + sd_bus_unref() (which frees the connection). The combination of this call is used pretty frequently in systemd tools right before exiting, and should also be relevant for most external clients, and is hence useful to cover in a call of its own. Previously the combination of the three calls was already done in the _cleanup_bus_close_unref_ macro, but this was only available internally. Also see #327
2015-07-03journal: in persistent mode create /var/log/journal, with all parents.Dimitri John Ledkov
systemd-journald races with systemd-tmpfiles-setup, and hence both are started at about the same time. On a bare-bones system (e.g. with empty /var, or even non-existent /var), systemd-tmpfiles will create /var/log. But it can happen too late, that is systemd-journald already attempted to mkdir /var/log/journal, ignoring the error. Thus failing to create /var/log/journal. One option, without modifiying the dependency graph is to create /var/log/journal directory with parents, when persistent storage has been requested.
2015-06-17journal: make sure the clock increases strict monotonicLennart Poettering
Let's work around crappy clocks in test-journal-interleaving.c too. This does the same as 98d2a5341788b49e82d628dfdc2e241af6d70dcd but for test-journal-interlaving.c rather than test-journal-stream.c.
2015-06-17journal: ensure test-journal-stream doesn't get confused by crappy clocksLennart Poettering
This ensures that we write strictly monotonic timestamps into the journal files, to ensure that we can properly interleave everything correctly. See #175 for details.
2015-06-15Merge pull request #214 from poettering/signal-rework-2Lennart Poettering
everywhere: port everything to sigprocmask_many() and friends
2015-06-15everywhere: port everything to sigprocmask_many() and friendsLennart Poettering
This ports a lot of manual code over to sigprocmask_many() and friends. Also, we now consistly check for sigprocmask() failures with assert_se(), since the call cannot realistically fail unless there's a programming error. Also encloses a few sd_event_add_signal() calls with (void) when we ignore the return values for it knowingly.
2015-06-15util: when creating temporary file names, allow including extra id string in itLennart Poettering
This adds a "char *extra" parameter to tempfn_xxxxxx(), tempfn_random(), tempfn_ranomd_child(). If non-NULL this string is included in the middle of the newly created file name. This is useful for being able to distuingish the kind of temporary file when we see one. This also adds tests for the three call. For now, we don't make use of this at all, but port all users over.
2015-06-11Merge pull request #156 from filbranden/journal_leading_whitespaceLennart Poettering
journald: do not strip leading whitespace from messages
2015-06-10journald: do not strip leading whitespace from messagesFilipe Brandenburger
Keep leading whitespace for compatibility with older syslog implementations. Also useful when piping formatted output to the `logger` command. Keep removing trailing whitespace. Tested with `pstree | logger` and checking that the output of `journalctl | tail` included aligned and formatted output. Confirmed that all test cases still pass as expected.
2015-06-10journald: don't employ inner loop for reading from incoming socketsLennart Poettering
Otherwise, if the socket is constantly busy we will never return to the event loop, but we really need to to dispatch other (possibly more high-priority) events too. Hence, return after dispatching one message to the event handler, and rely on the event loop calling us back right-away. Fixes #125
2015-06-10util: introduce CMSG_FOREACH() macro and make use of it everywhereLennart Poettering
It's only marginally shorter then the usual for() loop, but certainly more readable.
2015-06-10Merge pull request #85 from keszybz/selinux-contextZbigniew Jędrzejewski-Szmek
2015-06-10journald: simplify context handlingZbigniew Jędrzejewski-Szmek
By using our homegrown function we can dispense with all the iffdefery.
2015-06-10tree-wide: whenever we fork off a foreign child process reset signal ↵Lennart Poettering
mask/handlers Also, when the child is potentially long-running make sure to set a death signal. Also, ignore the result of the reset operations explicitly by casting them to (void).
2015-05-29util: split out signal-util.[ch] from util.[ch]Lennart Poettering
No functional changes.
2015-05-20journald: handle more gracefully when bind() fails on audit socketsLennart Poettering
2015-05-19journalctl: unify how we free boot id lists a bitLennart Poettering
Instead of use LIST_FOREACH_SAFE, just use the same, seperate destructor everywhere.
2015-05-19journalctl: clean up how we log errorsLennart Poettering
All functions should either log the errors they run into, or only return them in which case the caller should log them. Make sure this rule is followed, so that each error is logged precisely once, and neither never, nor more than once.
2015-05-19journalctl: rename boot_id_t to BootIdLennart Poettering
So far we tried to reserve the _t suffix to types we use like a value in contrast to types we use as objects, hence let's do this in journalctl too.
2015-05-19journalctl: lstat() should suffice if we call canonicalize_file_name() firstLennart Poettering
2015-05-19journalctl: free all command line argument objectsLennart Poettering
let's try to be valgrind clean
2015-05-19journalctl: only have a single exit path from main()Lennart Poettering
That way we can be sure we execute the destructors properly, and can be valgrind-clean.
2015-05-19journalctl: Improve boot ID lookupJan Janssen
This method should greatly improve offset based lookup, by simply jumping from one boot to the next boot. It starts at the journal head to get the a boot ID, makes a _BOOT_ID match and then comes from the opposite journal direction (tail) to get to the end that boot. After flushing the matches and advancing the journal from that exact position, we arrive at the start of next boot. Rinse and repeat. This is faster than the old method of aggregating the full boot listing just so we can jump to a specific boot, which can be a real pain on big journals just for a mere "-b -1" case. As an additional benefit --list-boots should improve slightly too, because it does less seeking. Note that there can be a change in boot order with this lookup method because it will use the order of boots in the journal, not the realtime stamp stored in them. That's arguably better, though. Another deficiency is that it will get confused with boots interleaving in the journal, therefore, it will refuse operation in --merge, --file and --directory mode. https://bugs.freedesktop.org/show_bug.cgi?id=72601
2015-05-18util: split all hostname related calls into hostname-util.cLennart Poettering
2015-05-15coredump: make sure we vacuum by defaultLennart Poettering
Only if both keep_free and max_use are actually 0 we can shortcut things and avoid vacuuming. If either are positive or -1 we need to execute the vacuuming. http://lists.freedesktop.org/archives/systemd-devel/2015-April/031382.html
2015-05-13journal: fix size commentPeter Lemenkov
Looks like sizeof(struct Header) is 240 not 224
2015-05-05Add audit type generated files to gitignoreZbigniew Jędrzejewski-Szmek
They are not currently used, but the Makefile rules don't know that. It's easier to ignore them, then to special-case creation rules.
2015-05-05core: rework unit name validation and manipulation logicLennart Poettering
A variety of changes: - Make sure all our calls distuingish OOM from other errors if OOM is not the only error possible. - Be much stricter when parsing escaped paths, do not accept trailing or leading escaped slashes. - Change unit validation to take a bit mask for allowing plain names, instance names or template names or an combination thereof. - Refuse manipulating invalid unit name
2015-04-24shared/utmp-wtmp: add parameter for origin tty and callback userdataDaniel Mack
Instead of looking up the tty from STDIN, let utmp_wall() take an argument to specify an origin tty for the wall message. Only if that argument is NULL do the STDIN lookup. Also add an void *userdata argument that is handed back to the callback function.
2015-04-23journal: use audit event names instead of numbersZbigniew Jędrzejewski-Szmek
<audit-1400> is replaced by AVC, etc. A fallback mechanism is provided for unlisted event types. Occasionally new types are added to the kernel, but not too often. Add a simple "test", which simply prints the mapping.
2015-04-23journal: add int↔audit type name mappingZbigniew Jędrzejewski-Szmek