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path: root/src/shared/install.c
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2014-04-23install: simplificationLennart Poettering
2014-04-16install: create_symlink() check unlink() return valueDjalal Harouni
create_symlink() do not check the return value of unlink(), this may confuse the user. Before the unlink() call we check the 'force' argument. If it is not set we fail with -EEXIST, otherwise we unlink() the file, therefore the next symlink() should not fail with -EEXIST (do not count races...). However since callers may not have appropriate privileges to unlink() the file we lose the -EPERM or any other errno code of unlink(), and return the -EEXIST of the next symlink(). Fix this by checking unlink() results. Before: $ systemctl --force --root=~/container-03 set-default multi-user.target Failed to set default target: File exists After: $ systemctl --force --root=~/container-03 set-default multi-user.target Failed to set default target: Permission denied
2014-03-18util: replace close_nointr_nofail() by a more useful safe_close()Lennart Poettering
safe_close() automatically becomes a NOP when a negative fd is passed, and returns -1 unconditionally. This makes it easy to write lines like this: fd = safe_close(fd); Which will close an fd if it is open, and reset the fd variable correctly. By making use of this new scheme we can drop a > 200 lines of code that was required to test for non-negative fds or to reset the closed fd variable afterwards.
2014-02-24Remove dead lines in various placesZbigniew Jędrzejewski-Szmek
As pointed-out by clang -Wunreachable-code. No behaviour changes.
2014-01-05shared/install: use char** convention for strvsZbigniew Jędrzejewski-Szmek
2013-12-26Use enums to make it obvious what boolean params meanZbigniew Jędrzejewski-Szmek
Suggested-by: Russ Allbery <rra@debian.org>
2013-12-25bus: rename message "serial" to "cookie"Lennart Poettering
Even if the lower-leveld dbus1 protocol calls it "serial", let's expose the word "cookie" for this instead, as this is what kdbus uses and since it doesn't imply monotonicity the same way "serial" does.
2013-12-21install: replace readdir_r with readdirFlorian Weimer
The old code incorrectly assumed that readdir_r updates errno.
2013-12-06Get rid of our reimplementation of basenameZbigniew Jędrzejewski-Szmek
The only problem is that libgen.h #defines basename to point to it's own broken implementation instead of the GNU one. This can be fixed by #undefining basename.
2013-11-25conf-parser: distinguish between multiple sections with the same nameTom Gundersen
Pass on the line on which a section was decleared to the parsers, so they can distinguish between multiple sections (if they chose to). Currently no parsers take advantage of this, but a follow-up patch will do that to distinguish [Address] Address=192.168.0.1/24 Label=one [Address] Address=192.168.0.2/24 Label=two from [Address] Address=192.168.0.1/24 Label=one Address=192.168.0.2/24 Label=two
2013-11-20core: convert PID 1 to libsystemd-busLennart Poettering
This patch converts PID 1 to libsystemd-bus and thus drops the dependency on libdbus. The only remaining code using libdbus is a test case that validates our bus marshalling against libdbus' marshalling, and this dependency can be turned off. This patch also adds a couple of things to libsystem-bus, that are necessary to make the port work: - Synthesizing of "Disconnected" messages when bus connections are severed. - Support for attaching multiple vtables for the same interface on the same path. This patch also fixes the SetDefaultTarget() and GetDefaultTarget() bus calls which used an inappropriate signature. As a side effect we will now generate PropertiesChanged messages which carry property contents, rather than just invalidation information.
2013-11-20install: when determining where default.target points to, accept a file ↵Lennart Poettering
instead of a symlink, too
2013-11-20install: use const where we canLennart Poettering
2013-11-08install: don't override caller's parameterLennart Poettering
2013-10-27path_lookup: moved _cleanup_lookup_paths_free_ from install.c to path-lookup.hDaniel Buch
2013-10-13Introduce udev object cleanup functionsZbigniew Jędrzejewski-Szmek
2013-10-13ModernizationZbigniew Jędrzejewski-Szmek
Fixes minor leak in error path in device.c.
2013-09-17specifier: rework specifier calls to return proper error messageLennart Poettering
Previously the specifier calls could only indicate OOM by returning NULL. With this change they will return negative errno-style error codes like everything else.
2013-07-14systemd: fix NULL dereference when disabling a nonexistent instanceZbigniew Jędrzejewski-Szmek
Assertion 'p' failed at src/shared/path-util.c:51, function path_get_file_name(). Aborting. The unit file could not be found, and i->path would not be set. In 02b9e969 a code path was added which attempts to remove symlinks to a nonexistent (removed) unit file. This worked OK in case of non-instance services, but broke in the case of instance services. Behaviour wrt. to instance units is changed in the way that 02b9e969 changed it for non-instance units: it is now possible to remove instance symlinks to a template unit that has been removed. This patch isn't a full fix, because the behaviour wrt. to enabling and disabling instance units is still broken: e.g it is possible to start autovt@tty5.service, but it is not possible to enable it, because autovt@.service is a symlink, and on the other hand, disabling getty@tty5.service removes all symlinks to getty@.service, which is wrong too. But segfaults make bad pr, so let's add at least this partial fix for now.
2013-07-13install: make "reenable" work with templated unitsRoss Lagerwall
Before, "systemctl reenable getty@tty1.service" would fail with: Failed to issue method call: File exists To fix this, reimplement "reenable" explicitly as a disable followed by an enable. This is shorter and is how the man page documents its behavior.
2013-07-12shared/install: fix trivial memleakZbigniew Jędrzejewski-Szmek
We lost the reference when setting path second time.
2013-06-03systemctl,core: allow nuking of symlinks to removed unitsZbigniew Jędrzejewski-Szmek
Before, one the unit file was deleted, install_context_for_removal() would refuse to look for symlinks. But we can remove dangling symlinks anyway. In principle, package installation/deinstallation scripts should do that before the unit is uninstalled, but they don't always do. Also, a user might have added additional symlinks manually. https://bugs.freedesktop.org/show_bug.cgi?id=62395
2013-05-30systemctl: add commands set-default and get-defaultVáclav Pavlín
systemctl set-default NAME links the default.target to the given unit, get-default prints out the path to the currently set default target.
2013-05-21systemctl: make systemctl is-enabled work for templated unitsMichael Tremer
Patch resolves the problem that 'systemctl is-enabled' does not work for templated units. Without this patch, systemctl is-enabled something@abc.service returned "No such file or directory", because it first checked if /usr/lib/systemd/system/something@abc.service, etc. exists. If systemctl is-enabled is called for templated units, this check should be omitted and it should search for symlinks in the .wants dirs right away. This patch fixes the broken behaviour and resolves https://bugs.freedesktop.org/show_bug.cgi?id=55318. [zj: fixed the patch to still check for broken symlinks and masked instances. Also removed untrue assumptions from the patch description.]
2013-04-25conf-parser: restrict .include usageLennart Poettering
Disallow recursive .include, and make it unavailable in anything but unit files.
2013-04-24Add set_consume which always takes ownershipZbigniew Jędrzejewski-Szmek
Freeing in error path is the common pattern with set_put().
2013-04-18move _cleanup_ attribute in front of the typeHarald Hoyer
http://lists.freedesktop.org/archives/systemd-devel/2013-April/010510.html
2013-04-17Report about syntax errors with metadataZbigniew Jędrzejewski-Szmek
The information about the unit for which files are being parsed is passed all the way down. This way messages land in the journal with proper UNIT=... or USER_UNIT=... attribution. 'systemctl status' and 'journalctl -u' not displaying those messages has been a source of confusion for users, since the journal entry for a misspelt setting was often logged quite a bit earlier than the failure to start a unit. Based-on-a-patch-by: Oleksii Shevchuk <alxchk@gmail.com>
2013-04-13fileio: in envfiles, do not skip lines following empty linesZbigniew Jędrzejewski-Szmek
https://bugs.freedesktop.org/show_bug.cgi?id=63477
2013-04-13Remove a few NULLsZbigniew Jędrzejewski-Szmek
Just {} is used in a lot of places now, and there's nothing special abose those few.
2013-04-11errno is positiveZbigniew Jędrzejewski-Szmek
Make sure we compare errno against positive error codes. The ones in hwclock.c and install.c can have an impact, the rest are unlikely to be hit or in code that isn't widely used. Also check that errno > 0, to help gcc know that we are returning a negative error code.
2013-04-05Use initalization instead of explicit zeroingZbigniew Jędrzejewski-Szmek
Before, we would initialize many fields twice: first by filling the structure with zeros, and then a second time with the real values. We can let the compiler do the job for us, avoiding one copy. A downside of this patch is that text gets slightly bigger. This is because all zero() calls are effectively inlined: $ size build/.libs/systemd text data bss dec hex filename before 897737 107300 2560 1007597 f5fed build/.libs/systemd after 897873 107300 2560 1007733 f6075 build/.libs/systemd … actually less than 1‰. A few asserts that the parameter is not null had to be removed. I don't think this changes much, because first, it is quite unlikely for the assert to fail, and second, an immediate SEGV is almost as good as an assert.
2013-02-08shared: conf-files - add root parameterKay Sievers
2013-01-29install: allow %u an and %U specifiers in WantedBy/RequiredBy/AliasZbigniew Jędrzejewski-Szmek
2013-01-29install: allow specifiers in WantedBy/RequiredBy/AliasZbigniew Jędrzejewski-Szmek
This allows one templated unit to refer to another templated unit at installation time. Examples: > grep WantedBy ~/.config/systemd/user/mpop@.timer WantedBy=services@%i.target > srv disable mpop@iit.timer rm '/home/alxchk/.config/systemd/user/services@iit.target.wants/mpop@iit.timer' > srv enable mpop@iit.timer ln -s '/home/alxchk/.config/systemd/user/mpop@.timer' '/home/alxchk/.config/systemd/user/services@iit.target.wants/mpop@iit.timer' Based-on-patch-by: Oleksii Shevchuk <alxchk@gmail.com>
2013-01-29install: automatic cleanup using local cleanup functionsZbigniew Jędrzejewski-Szmek
2013-01-29install: use automatic cleanup in find_symlinks_fd()Zbigniew Jędrzejewski-Szmek
2012-10-19shared/install: fix typo in commentChristian Hesse
2012-09-19util: define union dirent_storage and make use of it everywhereLennart Poettering
Make sure to allocate enough space for readdir_r(). https://bugzilla.redhat.com/show_bug.cgi?id=858754
2012-09-18core: move ManagerRunningAs to sharedZbigniew Jędrzejewski-Szmek
Note: I did s/MANAGER/SYSTEMD/ everywhere, even though it makes the patch quite verbose. Nevertheless, keeping MANAGER prefix in some places, and SYSTEMD prefix in others would just lead to confusion down the road. Better to rip off the band-aid now.
2012-09-16install: use automatic cleanupZbigniew Jędrzejewski-Szmek
2012-09-16install: treat non-existent directory as emptyZbigniew Jędrzejewski-Szmek
When looking for symlinks, it doesn't make sense to error-out if the directory is missing. The user might delete an empty directory. This check caused test-unit-file to fail when run before installation.
2012-09-11when determining unit file list, include invalid unit names in an "invalid" ↵Lennart Poettering
state
2012-07-26systemd: enable/disable instances of templateMichal Sekletar
https://bugzilla.redhat.com/show_bug.cgi?id=752774
2012-07-10unit-name: remove unit_name_is_valid_no_type() and move unit_name_is_valid() ↵Lennart Poettering
to unit-name.h
2012-06-27core: rename system.preset to system-presets to follow naming scheme of ↵Lennart Poettering
other dirs in /usr/lib/systemd/ Thankfully nobody is using this yet, and presets aren't documented yet, hence take the liberty to rename this.
2012-06-21preset: don't look for preset files in /lib unless /usr is split offLennart Poettering
2012-05-31mkdir: append _label to all mkdir() calls that explicitly set the selinux ↵Kay Sievers
context
2012-05-23manager: rework generator logicLennart Poettering
Previously generated units were always placed at the end of the search path. With this change there will be three unit dirs instead of one, to place generated entries at the beginning, in the middle and at the end of the search path: beginning: for units that need to override all configuration, regardless of user or vendor. Example use: system-update-generator uses this to temporarily redirect default.target. middle: for units that need to override vendor configuration, but not vendor configuration. Example use: /etc/fstab should override vendor supplied configuration (think /tmp), but should not override native user configuration. end: does not override anything but is available as well. Possible usage might be to convert D-Bus bus service files to native units but allowing vendor supplied native units to win.
2012-05-21unit: introduce RequiredBy= setting in [Install], to complement WantedBy=Lennart Poettering