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2015-11-27selinux: split up mac_selinux_have() from mac_selinux_use()Lennart Poettering
Let's distuingish the cases where our code takes an active role in selinux management, or just passively reports whatever selinux properties are set. mac_selinux_have() now checks whether selinux is around for the passive stuff, and mac_selinux_use() for the active stuff. The latter checks the former, plus also checks UID == 0, under the assumption that only when we run priviliged selinux management really makes sense. Fixes: #1941
2015-11-27util-lib: move nss-util.h from shared/ to basic/Lennart Poettering
The header file defines some helpers for GLIBC NSS and doesn't include anything else but glibc headers, hence there's little reason to keep it in shared/. See: #2008
2015-11-27resolved: fix typo in in_addr_is_localhost()Mantas Mikulėnas
2015-11-27resolved: never cache RRs originating from localhostLennart Poettering
After all, this is likely a local DNS forwarder that caches anyway, hence there's no point in caching twice. Fixes #2038.
2015-11-25util-lib: add ordered_set_ensure_allocated()Lennart Poettering
ordered_set_ensure_allocated() does for an OrderedSet, what set_ensure_allicated() does for a Set.
2015-11-24basic: fix build on architectures with small longHelmut Grohne
The x32 architecture has a small "long" type which is not enough to hold struct statfs.f_type.
2015-11-23escape: add cescape_length() call as generalization of cescape()Lennart Poettering
2015-11-23virt: add comment about order in virtualization detectionChristian Hesse
2015-11-23virt: detect dmi before cpuidChristian Hesse
Virtualbox should be detected as 'oracle'. This used to work but broke with commit: commit 75f86906c52735c98dc0aa7e24b773edb42ee814 Author: Lennart Poettering <lennart@poettering.net> Date: Mon Sep 7 13:42:47 2015 +0200 basic: rework virtualization detection API We swap detection for dmi and cpuid, this fixes Virtualbox with KVM. Hopefully it does not break anything else.
2015-11-19Merge pull request #1947 from phomes/sort-includes2Lennart Poettering
tree-wide: sort includes in *.h
2015-11-19Merge pull request #1931 from bengal/dhcp-fqdn-v2Tom Gundersen
libsystemd-network: add support for "Client FQDN" DHCP option (v2)
2015-11-18tree-wide: sort includes in *.hThomas Hindoe Paaboel Andersen
This is a continuation of the previous include sort patch, which only sorted for .c files.
2015-11-17calendarspec: sub-second support, v3Hristo Venev
2015-11-17hostname-util: fix code commentBeniamino Galvani
2015-11-17siphash: minor coding style fixes and modernizationsLennart Poettering
Only cosmetics really, doesn't change any actual logic.
2015-11-17siphash: fix another alignment issueLennart Poettering
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