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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
2015-11-04detect-virt: dmi: look for KVMAndrew Jones
Some guests (ARM, AArch64, x86-RHEL) have 'KVM' in the product name. Look for that first in order to more precisely report "kvm" when detecting a QEMU/KVM guest. Without this patch we report "qemu", even if KVM acceleration is in use on ARM/AArch64 guests. I've only tested a backported version of this and the previous patch on an AArch64 guest (which worked). Of course it would be nice to get regression testing on all guest types that depend on dmi done.
2015-11-04arm/aarch64: detect-virt: check dmiAndrew Jones
ARM/AArch64 guests now have SMBIOS tables populated (when boot with a late enough QEMU and a late enough AAVMF is used as the bootloader). Furthermore, when booting ARM/AArch64 guests with ACPI, the DT detection obviously no longer works, so we need dmi detection.
2015-11-04detect-virt: detect in best-heuristic orderAndrew Jones
afaict, this will fix a regression caused by commit 75f86906c5. Where we used to report "kvm" before that patch, without this patch, we would only report "qemu". The reason is because cpuid detection must come before dmi detection. Also, both can safely come before other xen heuristics. Untested.
2015-11-03util-lib: move CONF_DIRS_NULSTR definition to def.hLennart Poettering
After all, this is not some compiler or C magic, but something very specific to how systemd works, hence let's move it into def.h, and out of macro.h
2015-11-03util-lib: move character class definitions to string-util.hLennart Poettering
2015-11-03Time-util: introduce usec to jiffiesSusant Sahani
2015-11-03Merge pull request #1744 from evverx/fix-debug-generatorLennart Poettering
debug-generator: respect kernel parameters for default unit setting
2015-11-03proc-cmdline: add runlevel to target mappingEvgeny Vereshchagin
2015-11-03parse-util: introduce parse_ifindex() and make use of it everywhereLennart Poettering
We have enough places where we parse an ifindex, hence introduce a proper parsing function for it, that verifies all parameters.
2015-11-02proc-cmdline: return proper errors from shall_restore_state()Lennart Poettering
Let's not eat up errors in shall_restore_state(), but in the consumers instead, just for the sake of keeping the library calls generic.
2015-11-02core: bump net.unix.max_dgram_qlen really early during bootLennart Poettering
Only that way it actually has an effect on all our sockets, including $NOTIFY_SOCKET.
2015-11-02string-util: rework memory_erase() so that it cannot be optimized awayLennart Poettering
memory_erase() so far just called memset(), which the compiler might optimize away under certain conditions if it feels there's benefit in it. C11 knows a new memset_s() call that is like memset(), but may not be optimized away. Ideally, we'd just use that call, but glibc currently does not support it. Hence, implement our own simplistic version of it. We use a GCC pragma to turn off optimization for this call, and also use the "volatile" keyword on the pointers to ensure that gcc will use the pointers as-is. According to a variety of internet sources, either one does the trick. However, there are also reports that at least the volatile thing isn't fully correct, hence let's add some snake oil and employ both techniques. https://news.ycombinator.com/item?id=4711346
2015-11-02Revert "utf8.[ch]: use char32_t and char16_t instead of int, int32_t, int16_t"Lennart Poettering
2015-11-02Merge pull request #1740 from shawnl/masterDaniel Mack
utf8.[ch]: use char32_t and char16_t instead of int, int32_t, int16_t
2015-10-31utf8.[ch]: use char32_t and char16_t instead of int, int32_t, int16_tShawn Landden
rework C11 utf8.[ch] to use char32_t instead of uint32_t when referring to unicode chars, to make things more expressive.
2015-10-31core: constify a few thingsLennart Poettering
2015-10-31systemctl: add a way to explicitly request client-side unit installingLennart Poettering
This adds support for a new environment variable SYSTEMCTL_INSTALL_CLIENT_SIDE, that ensures that systemctl executes install operations client-side instead of passing them to PID1. This is useful in debugging situations, but even beyond that. However, we don't want to make it official API, hence let's just make it an undocumented environment variable. Similar, add a second variable, SYSTEMCTL_SKIP_SYSV which allows skipping the SysV chkconfig fall-back if set. This is useful for similar reasons, and exposed as undocumented as environment variable for similar reasons, too.
2015-10-27cpu-set-util: Support ranges in parse_cpu_set_and_warnFilipe Brandenburger
Tested CPUAffinity ranges on both a service unit and in system.conf and confirmed they work as expected (by inspecting /proc/PID/status, for the main pid of the service and for pid 1). Also mixed ranges with both spaces, commas, trailing commas and spaces. Added new tests to increase coverage of ranges and prevent regressions.
2015-10-27parse-util: Introduce new parse_range functionFilipe Brandenburger
This function will be useful for CPUAffinity settings that involve ranges of CPUs. Make it generic and include test coverage to prevent regressions.
2015-10-27cpu-set-util: Accept commas as separators in parse_cpu_set_and_warnFilipe Brandenburger
Tested CPUAffinity settings on both a service unit and in system.conf and confirmed they work as expected. Added a new test to confirm that trailing commas and spaces work and to prevent any regressions in that area.
2015-10-27util-lib: move inotify-related definitions to fs-util.[ch]Lennart Poettering
2015-10-27util-lib: move fdname_is_valid() to fd-util.[ch]Lennart Poettering
2015-10-27automount: move generically userful call repeat_mount() into mount-util.[ch]Lennart Poettering
2015-10-27process-util: move a couple of process-related calls overLennart Poettering
2015-10-27process-util: make some minor corrections to PID live detectionLennart Poettering