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2015-11-17tree-wide: make macros for converting fds to pointers and back generic and ↵Lennart Poettering
use them everywhere
2015-11-17tree-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.
2015-11-16Merge pull request #1916 from zonque/alignTom Gundersen
siphash: alignment
2015-11-16Merge pull request #1915 from poettering/btrfs-root-subvolDavid Herrmann
tmpfiles: create subvolumes for "v", "q", and "Q" only if / is a subv…
2015-11-16tmpfiles: create subvolumes for "v", "q", and "Q" only if / is a subvolumeLennart Poettering
It's not a good idea to create subvolumes for parts of the OS tree (such as /home, or /var) if the root directory is not a subvolume too. We shouldn't assume control of "heavier" objects such as subvolumes, if the originating object (the root directory) is a "light-weight" object, i.e. a plain directory. Effectively this means that chroot() environments that are run on a plain directory do not have to deal with problems around systemd creating subvolumes that cannot be removed with a simple "rm" anymore. However, if the chroot manager creates a proper subvolume for such an environment it will also get further subvolumes placed in there, under the assumption that the manager understands the concept of subvolumes in that case.
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.
2015-11-16siphash24: fix memory alignmentDaniel Mack
Use unaligned_read_le64() to access input buffer when reading complete 64-bit words. This should fix memory traps on platforms with strict aliasing.
2015-11-16basic: add unaligned macros for little endianDaniel Mack
Also add test code for that.
2015-11-16Merge pull request #1886 from poettering/tasks-maxDavid Herrmann
Enable TasksMax by default for all units
2015-11-16virt: sort #includes alphabeticallyMartin Pitt
nitpick from PR #1910
2015-11-16virt: add missing #includesMartin Pitt
src/basic/virt.c: In function 'detect_vm_device_tree': src/basic/virt.c:117:17: error: unknown type name '_cleanup_closedir_' _cleanup_closedir_ DIR *dir = NULL; src/basic/virt.c:128:17: error: implicit declaration of function 'FOREACH_DIRENT' [-Werror=implicit-function-declaration] FOREACH_DIRENT(dent, dir, return -errno)
2015-11-13util-lib: when parsing time values, accept "M" as short for "month"Lennart Poettering
nginx defines an uppercase "M" that way (in contrast to the lowercase "m" for "minute"), and it sounds like an OK logic to follow, so that we understand a true superset of time values nginx understands. http://nginx.org/en/docs/syntax.html
2015-11-13btrfs: properly handle the case when a subvol has no parentLennart Poettering
Don't be confused by subvols without parent. This is after all how the root subvol is set up.
2015-11-13Merge pull request #1879 from poettering/networkd-forwardTom Gundersen
stop managing per-interface IP forwarding settings
2015-11-13Merge pull request #1869 from poettering/kill-overridableMichal Schmidt
Remove support for RequiresOverridable= and RequisiteOverridable=
2015-11-13util-lib: optionally, when writing a string to a file, verify string on failureLennart Poettering
With this change, the idiom: r = write_string_file(p, buf, 0); if (r < 0) { if (verify_one_line_file(p, buf) > 0) r = 0; } gets reduced to: r = write_string_file(p, buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE); i.e. when writing the string fails and the new flag WRITE_STRING_FILE_VERIFY_ON_FAILURE is specified we'll not return a failure immediately, but check the contents of the file. If it matches what we wanted to write we suppress the error and exit cleanly.
2015-11-12core: remove support for RequiresOverridable= and RequisiteOverridable=Lennart Poettering
As discussed at systemd.conf 2015 and on also raised on the ML: http://lists.freedesktop.org/archives/systemd-devel/2015-November/034880.html This removes the two XyzOverridable= unit dependencies, that were basically never used, and do not enhance user experience in any way. Most folks looking for the functionality this provides probably opt for the "ignore-dependencies" job mode, and that's probably a good idea. Hence, let's simplify systemd's dependency engine and remove these two dependency types (and their inverses). The unit file parser and the dbus property parser will now redirect the settings/properties to result in an equivalent non-overridable dependency. In the case of the unit file parser we generate a warning, to inform the user. The dbus properties for this unit type stay available on the unit objects, but they are now hidden from usual introspection and will always return the empty list when queried. This should provide enough compatibility for the few unit files that actually ever made use of this.
2015-11-12install: follow unit file symlinks in /usr, but not /etc when looking for ↵Lennart Poettering
[Install] data Some distributions use alias unit files via symlinks in /usr to cover for legacy service names. With this change we'll allow "systemctl enable" on such aliases. Previously, our rule was that symlinks are user configuration that "systemctl enable" + "systemctl disable" creates and removes, while unit files is where the instructions to do so are store. As a result of the rule we'd never read install information through symlinks, since that would mix enablement state with installation instructions. Now, the new rule is that only symlinks inside of /etc are configuration. Unit files, and symlinks in /usr are now valid for installation instructions. This patch is quite a rework of the whole install logic, and makes the following addional changes: - Adds a complete test "test-instal-root" that tests the install logic pretty comprehensively. - Never uses canonicalize_file_name(), because that's incompatible with operation relative to a specific root directory. - unit_file_get_state() is reworked to return a proper error, and returns the state in a call-by-ref parameter. This cleans up confusion between the enum type and errno-like errors. - The new logic puts a limit on how long to follow unit file symlinks: it will do so only for 64 steps at max. - The InstallContext object's fields are renamed to will_process and has_processed (will_install and has_installed) since they are also used for deinstallation and all kinds of other operations. - The root directory is always verified before use. - install.c is reordered to place the exported functions together. - Stricter rules are followed when traversing symlinks: the unit suffix must say identical, and it's not allowed to link between regular units and templated units. - Various modernizations - The "invalid" unit file state has been renamed to "bad", in order to avoid confusion between UNIT_FILE_INVALID and _UNIT_FILE_STATE_INVALID. Given that the state should normally not be seen and is not documented this should not be a problematic change. The new name is now documented however. Fixes #1375, #1718, #1706
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.
2015-11-11Merge pull request #1854 from poettering/unit-depsTom Gundersen
Dependency engine improvements
2015-11-11util-lib: use MODE_INVALID as invalid value for mode_t everywhereLennart Poettering
2015-11-11core: fix dependency parsingLennart Poettering
3d793d29059a7ddf5282efa6b32b953c183d7a4d broke parsing of unit file names that include backslashes, as extract_first_word() strips those. Fix this, by introducing a new EXTRACT_RETAIN_ESCAPE flag which disables looking at any flags, thus being compatible with the classic FOREACH_WORD() behaviour.
2015-11-11execute: Add new PassEnvironment= directiveFilipe Brandenburger
This directive allows passing environment variables from the system manager to spawned services. Variables in the system manager can be set inside a container by passing `--set-env=...` options to systemd-spawn. Tested with an on-disk test.service unit. Tested using multiple variable names on a single line, with an empty setting to clear the current list of variables, with non-existing variables. Tested using `systemd-run -p PassEnvironment=VARNAME` to confirm it works with transient units. Confirmed that `systemctl show` will display the PassEnvironment settings. Checked that man pages are generated correctly. No regressions in `make check`.
2015-11-11sd-netlink: add support for RTA_PREFTom Gundersen
2015-11-11sd-netlink: types - let tables be sized implicitlyTom Gundersen
This way we do not rely on the size MAX* constants from the kernel headers, as these will be out-of-sync in case we have old headers and new defines in missing.h.
2015-11-11Merge pull request #1837 from poettering/grabbag2Tom Gundersen
variety of fixes
2015-11-10Remove snapshot unit typeZbigniew Jędrzejewski-Szmek
Snapshots were never useful or used for anything. Many systemd developers that I spoke to at systemd.conf2015, didn't even know they existed, so it is fairly safe to assume that this type can be deleted without harm. The fundamental problem with snapshots is that the state of the system is dynamic, devices come and go, users log in and out, timers fire... and restoring all units to some state from the past would "undo" those changes, which isn't really possible. Tested by creating a snapshot, running the new binary, and checking that the transition did not cause errors, and the snapshot is gone, and snapshots cannot be created anymore. New systemctl says: Unknown operation snapshot. Old systemctl says: Failed to create snapshot: Support for snapshots has been removed. IgnoreOnSnaphost settings are warned about and ignored: Support for option IgnoreOnSnapshot= has been removed and it is ignored http://lists.freedesktop.org/archives/systemd-devel/2015-November/034872.html
2015-11-10tmpfiles: don't consider it a problem if quota is not enabled on btrfsLennart Poettering
If quota is not enabled on a btrfs file system, accept that, and only log a debug message, but do not consider this a reason for failure. Fixes: #1809
2015-11-10btrfs: when querying quota, make sure we don't choke if quota is disabledLennart Poettering
When quota is disabled there's no quota tree on the fs, which results in the SEARCH ioctl to return ENOENT. Handle this nicely: treat this the same way as the case where the quota tree is around but doesn't carry the searched for fields.
2015-11-10Merge pull request #1835 from poettering/grabbag-of-stuffDaniel Mack
Lots of small fixes
2015-11-10Merge pull request #1793 from filbranden/extract1Lennart Poettering
More refactorings in extract_first_word
2015-11-10parse-util: really refuse parsing negative values as positive ones, even on ↵Lennart Poettering
x86-32 strtoull() doesn't make it particularly easy to detect passed-in negative numbers, as it silently converts them to positive ones without generating any error. Since we are not interested in negative values we should hence explicitly filter them out by looking at the string directly and returning ERANGE if we see a leading "-". Fixes: #1829
2015-11-10time-util: add parse_time(), which is like parse_sec() but allows ↵Lennart Poettering
specification of default time unit if none is specified This is useful if we want to parse RLIMIT_RTTIME values where the common UNIX syntax is without any units but refers to a non-second unit (µs in this case), but where we want to allow specification of units.
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.
2015-11-10virt: make sure that we detect unknown container managers as ↵Lennart Poettering
VIRTUALIZATION_CONTAINER_OTHER If we don't know a container manager, we should consider it as "other" rather than as no container manager at all, to provide a somwhat useful upgrade path.
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.
2015-11-09Merge pull request #1799 from jengelh/docLennart Poettering
doc: typo and ortho fixes
2015-11-09detect-virt: add rkt app container runtimeIago López Galeiras
2015-11-06doc: correct punctuation and improve typography in documentationJan Engelhardt
2015-11-05extract-word: Skip coalesced separators in placeFilipe Brandenburger
Just skip them in place, instead of setting separator=true. We only do that in a single place (while finding a separator outside of quote or backslash states) so we don't really need a separate state for it. Tested that no regressions were introduced in test-extract-word. Ran a full `make check` and also installed the binaries on a test system and did not see any issues related to parsing unit files or starting units after a reboot.
2015-11-05extract-word: Do not re-evaluate the state on each parsed characterFilipe Brandenburger
Use inner loops to keep processing the same state, except when there is a state change, then break back to the outer loop so that the correct branch can be selected again. Tested that no regressions were introduced in test-extract-word.
2015-11-05extract-word: increment pointer p and keep c in sync in for loopFilipe Brandenburger
This will make it easier to use inner loops to keep looping in the same state, by just updating p and c in the same way in the inner loops. Tested that no regressions were created in test-extract-word.
2015-11-05extract-word: Check for early bail out before inspecting separatorsFilipe Brandenburger
It's a pretty small optimization but doesn't hurt... Tested with test-extract-word.
2015-11-05extract-word: replace an use of `goto` with structured codeFilipe Brandenburger
Using `goto` might be appropriate for the "finish" cases but it was really not necessary at this point of the code... Just use if/else blocks to accomplish the same. Confirmed that the test cases in test-extract-word keep working as expected.
2015-11-05extract-word: move start block outside the for loopFilipe Brandenburger
This block runs once before all the other handling, so move it outside the main loop and put it in its own loop until it's finished doing its job. Tested by confirming `make check` (and particularly test-extract-word) still passes and by booting a system with binaries including this commit.
2015-11-05log: whitespace style fixMichal Schmidt