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2016-02-19journal: defer journal closes on rotateVito Caputo
When we rotate journals, we must set offline and close the current one, but don't generally need to wait for this to complete. Instead, we'll initiate an asynchronous offline via journal_file_set_offline(oldfile, false), and add the file to a per-server set of deferred closes to be closed later when they won't block. There's one complication however; journal_file_open() via journal_file_verify_header() assumes that any writable journal in the online state is the product of an unclean shutdown or other form of corruption. Thus there's a need for journal_file_open() to be aware of deferred closes and synchronize with their completion when opening preexisting journals for writing. To facilitate this the deferred closes set is supplied to the journal_file_open() function where the deferred closes may be closed synchronously before verifying the header in such circumstances.
2016-02-19journal: asynchronous journal_file_set_offline()Vito Caputo
This adds a wait flag to journal_file_set_offline(), when false the offline is performed asynchronously in a separate thread. When wait is true, if an asynchronous offline is already in-progress it is restarted and waited for. Otherwise the offline is performed synchronously without the use of a thread. journal_file_set_online() cancels or waits for the asynchronous offline to complete if in-flight, depending on where in the offline process the thread happens to be. If the thread is in the fsync() phase, it is cancelled and waiting is unnecessary. Otherwise, the thread is joined before proceeding. A new offline_state member is added to JournalFile which is used via atomic operations for communicating between the offline thread and the journal_file_set_{offline,online}() functions.
2016-02-19journal: add void cast to journal_file_close() callsVito Caputo
2016-02-19journal: add void cast to fsync() callsVito Caputo
2016-02-18journal/catalog: fix memory leaksZbigniew Jędrzejewski-Szmek
Various buffers were lost because finish_item() either consumed the buffer or allocated a new one (if an entry with the same key existed). The caller would simply forget the buffer in either case. Also add a check for the case when a valid identifier is followed by an empty body. We should not allow this. Also be more consistent in error handling and always print an error message.
2016-02-13Merge pull request #2589 from keszybz/resolve-tool-2Lennart Poettering
Better support of OPENPGPKEY, CAA, TLSA packets and tests
2016-02-11Move initialize_libgcrypt to separate fileZbigniew Jędrzejewski-Szmek
It's annoying to have the exact same function in three places. It's stored in src/shared, but it's not added to the library to avoid the dependency on libgcrypt.
2016-02-11Add memcpy_safeZbigniew Jędrzejewski-Szmek
ISO/IEC 9899:1999 §7.21.1/2 says: Where an argument declared as size_t n specifies the length of the array for a function, n can have the value zero on a call to that function. Unless explicitly stated otherwise in the description of a particular function in this subclause, pointer arguments on such a call shall still have valid values, as described in 7.1.4. In base64_append_width memcpy was called as memcpy(x, NULL, 0). GCC 4.9 started making use of this and assumes This worked fine under -O0, but does something strange under -O3. This patch fixes a bug in base64_append_width(), fixes a possible bug in journal_file_append_entry_internal(), and makes use of the new function to simplify the code in other places.
2016-02-10build-sys: move coredump logic into subdir of its ownLennart Poettering
2016-02-10tree-wide: remove Emacs lines from all filesDaniel Mack
This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.
2016-02-09journal: Drop monotonicity check when appending to journal fileKlearchos Chaloulos
Remove the check that triggers rotation of the journal file when the arriving log entry had a monotonic timestamp smaller that the previous log entry. This check causes unnecessary rotations when journal-remote was receiving from multiple senders, therefore monotonicity can not be guaranteed. Also, it does not offer any useful functionality for systemd-journald.
2016-02-07Merge pull request #2546 from torstehu/fix-typo3Zbigniew Jędrzejewski-Szmek
treewide: fix typos and spacing
2016-02-07Merge pull request #2536 from vcaputo/journal-misc-cleanupsZbigniew Jędrzejewski-Szmek
journal: miscellaneous cleanups
2016-02-07treewide: fix typos and spacingTorstein Husebø
2016-02-06journal: add missing space to switch statementVito Caputo
2016-02-06Merge pull request #2138 from stefwalter/journal-combineLennart Poettering
Combine journal catalog entries with the same id
2016-02-05journal: remove template from open_journal argsVito Caputo
None of the callers take advantage of this parameter, it's always NULL, this is just a private helper function to simplify the call sites so drop the template parameter altogether. If a caller emerges later who needs it, it can be restored.
2016-02-05journal: Add test for merging journal entriesStef Walter
2016-02-05journal: Refactor test-catalog importing testsStef Walter
One function per test. Remove shared state between tests.
2016-02-05journal: Combine journal catalog entries with the same idStef Walter
Instead of discarding duplicate catalog entries, we now combine them. This allows software or admins to add or override catalog headers, or add additional text to the catalog message.
2016-02-05journal: move mmap() ENOMEM loop to functionVito Caputo
Introduces mmap_try_harder()
2016-02-05journal: add asserts on f->(data|field)_hash_tableVito Caputo
Functions dereferencing these members should assert their non-NULL state.
2016-02-05journal: add asserts for f->headerVito Caputo
Just some additional asserts in functions dereferencing f->header.
2016-02-05journal: move window initialization to window_addVito Caputo
2016-02-03journal: fix boolean handling in MMapCacheLennart Poettering
Let's use bitfields for our booleans, and don't try to apply binary OR or addition on them, because that's weird and we should instead use logical OR only.
2016-02-03Merge pull request #2519 from msekletar/journalctl-device-log-current-boot-v2Lennart Poettering
journalctl: add match for the current boot when called with devpath (v2)
2016-02-03Merge pull request #2453 from poettering/journalctl-fTom Gundersen
journalctl --fields logic
2016-02-03journalctl: add match for the current boot when called with devpathMichal Sekletar
2016-02-02Merge pull request #2510 from msekletar/journalctl-dev-sda-v4Lennart Poettering
journalctl: make "journalctl /dev/sda" work
2016-02-02journalctl: make "journalctl /dev/sda" workMichal Sekletar
Currently when journalctl is called with path to block device node we add following match _KERNEL_DEVICE=b$MAJOR:$MINOR. That is not sufficient to actually obtain logs about the disk because dev_printk() kernel helper puts to /dev/kmsg information about the device in following format, +$SUBSYSTEM:$ADDRESS, e.g. "+pci:pci:0000:00:14.0". Now we will walk upward the syspath and add match for every device in format produced by dev_printk() as well as match for its device node if it exists.
2016-02-01sd-journal: minor optimizationLennart Poettering
No need to store the object and offset data if we don't actually need it ever.
2016-02-01journalctl: add new --fields switch to dump all currently used field namesLennart Poettering
Fixes #2176
2016-02-01sd-journal: add an API to enumerate known field names of the journalLennart Poettering
This adds two new calls to get the list of all journal fields names currently in use. This is the low-level support to implement the feature requested in #2176 in a more optimized way.
2016-02-01journal-cat: don't allocate memory for the syslog identifierLennart Poettering
Fixes: #2490
2016-02-01journalctl: improve error messages when the specified boot is not foundJan Synacek
2016-02-01journalctl: show friendly info when using -b on runtime journal onlyJan Synacek
Make it clear that specifing boot when there is actually only one has no effect. This cosmetic patch improves user experience a bit.
2016-02-01sd-journal: introduce has_runtime_files and has_persistent_filesJan Synacek
Also introduce sd_journal_has_runtime_files() and sd_journal_has_persistent_files() to the public API. These functions can be used to easily find out if the open journal files are runtime and/or persistent.
2016-01-26Merge pull request #2440 from poettering/journal-fixTom Gundersen
journald: minor fixes
2016-01-26journald: add a couple of static asserts checking logging constantsLennart Poettering
Whenever we include a log level or facility in a journal string field, make sure the compiler checks for us that that's actually the right thing to do.
2016-01-26journald: fix LOG_AUTH facility in audit codeLennart Poettering
Fixes: #2304
2016-01-26Merge pull request #2424 from keszybz/journald-disk-usageLennart Poettering
Journald disk usage
2016-01-26journald: minor fixesLennart Poettering
This primarily contains some minor coding style fixups for 7a24f3bf2fb181243a1957a0cdd54cd919396793 and earlier changes. Specifically: * Don't log at log levels above LOG_DEBUG from "library" code like journal-file.c * Don't negate errno values before passing them to log_debug_errno(), as the call can handle this fine anyway * Cast some calls we knowingly ignore the return values of to (void) * Don't clobber function call-by-ref return values on failure * Don't mix function calls and variable declarations in one line There's also one more relevant change: when failing to enqueue a journal change fs event, we'll run it immediately.
2016-01-25Merge pull request #2240 from hgwalles/coredump-delete-bugLennart Poettering
coredump: fix bug that loses core dump files when core dumps are compressed and disk space is low.
2016-01-25coredump: fix bug that loses core dump files when core dumps are compressed ↵Hayden Walles
and disk space is low. Previously the save_external_coredump function returned a file descriptor corresponding to the dumped file. This descriptor was used for two different purposes by calling code: a) access to the raw core dump data; b) testing candidate files (via inode comparisons) while vacuuming to protect the current core dump from vacuuming. The descriptor returned always corresponded to a file containing the raw core dump data. However if compresson was used and the core dump was compressed then the descriptor returned did not correspond to the file that would eventually be left on disk (ie the compressed file). Thus the file was never protected by vacuuming. When disk space was low all core dumps including the current one would be vacuumed and the corresponding log message referred to a file that no longer existed. This resulted in the following error message from coredumpctl if the missing core dump was requested: Cannot retrieve coredump from journal nor disk. Failed to retrieve core: No such file or directory save_external_coredump now returns two descriptors, one to be used for inode comparisons to prevent overzealous vacuuming and one to be used for raw data access. When compression is not used the returned inode comparison descriptor will be invalid, indicating that the raw data access descriptor should be used for inode comparisons as well. Corresponding use of save_external_coredump and the returned descriptors also updated.
2016-01-25journald: restore oom safetyZbigniew Jędrzejewski-Szmek
v2: - use xsprintf
2016-01-23Merge pull request #2318 from vcaputo/coalesce-ftruncates-reduxZbigniew Jędrzejewski-Szmek
journal: coalesce ftruncate()s in 250ms windows
2016-01-23journald: use structured message + catalog entry for disk usageZbigniew Jędrzejewski-Szmek
The format of the journald disk usage log entry was changed back and forth a few times. It is annoying to have a very verbose message, but if it is short it is hard to understand. But we have a tool for this, the catalogue. $ journalctl -x -u systemd-journald Jan 23 18:48:50 rawhide systemd-journald[891]: Runtime journal (/run/log/journal/) is 8.0M, max 196.2M, 188.2M free. -- Subject: Disk space used by the journal -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Runtime journal (/run/log/journal/) is currently using 8.0M. -- Maximum allowed usage is set to 196.2M. -- Leaving at least 294.3M free (of currently available 1.9G of disk space). -- Enforced usage limit is thus 196.2M, of which 188.2M are still available. -- -- The limits controlling how much disk space is used by the journal may -- be configured with SystemMaxUse=, SystemKeepFree=, SystemMaxFileSize=, -- RuntimeMaxUse=, RuntimeKeepFree=, RuntimeMaxFileSize= settings in -- /etc/systemd/journald.conf. See journald.conf(5) for details. Jan 23 18:48:50 rawhide systemd-journald[891]: System journal (/var/log/journal/) is 480.1M, max 1.6G, 1.2G free. -- Subject: Disk space used by the journal -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- System journal (/var/log/journal/) is currently using 480.1M. -- Maximum allowed usage is set to 1.6G. -- Leaving at least 2.5G free (of currently available 5.8G of disk space). -- Enforced usage limit is thus 1.6G, of which 1.2G are still available. -- -- The limits controlling how much disk space is used by the journal may -- be configured with SystemMaxUse=, SystemKeepFree=, SystemMaxFileSize=, -- RuntimeMaxUse=, RuntimeKeepFree=, RuntimeMaxFileSize= settings in -- /etc/systemd/journald.conf. See journald.conf(5) for details.
2016-01-23journald: allow additional payload in server_driver_messageZbigniew Jędrzejewski-Szmek
The code to format the iovec is shared with log.c. All call sites to server_driver_message are changed to include the additional "MESSAGE=" part, but the new functionality is not used and change in functionality is not expected. iovec is preallocated, so the maximum number of messages is limited. In server_driver_message N_IOVEC_PAYLOAD_FIELDS is currently set to 1. New code is not oom safe, it will fail if memory cannot be allocated. This will be fixed in subsequent commit.
2016-01-20Merge pull request #1607 from keszybz/lz4-remove-v1Lennart Poettering
Remove the old version of the lz4 stream compressor
2016-01-20basic/terminal-util: introduce SYSTEMD_COLORS environment variableJan Synacek
... to determine if color output should be enabled. If the variable is not set, fall back to using on_tty(). Also, rewrite existing code to use colors_enabled() where appropriate.