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./configure --enable/disable-kdbus can be used to set the default
behavior regarding kdbus.
If no kdbus kernel support is available, dbus-dameon will be used.
With --enable-kdbus, the kernel command line option "kdbus=0" can
be used to disable kdbus.
With --disable-kdbus, the kernel command line option "kdbus=1" is
required to enable kdbus support.
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It's only marginally shorter then the usual for() loop, but certainly
more readable.
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No functional changes.
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http://lists.freedesktop.org/archives/systemd-devel/2015-May/032100.html
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http://lists.freedesktop.org/archives/systemd-devel/2015-May/032025.html
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try-restart
Previously, if a service A depended on a service B via Requires=, and A
was not running and B restarted this would trigger a start of A as well,
since the restart was propagated as restart independently of the state
of A.
This patch ensures that a restart of B would be propagated as a
try-restart to A, thus not changing its state if it isn't up.
http://lists.freedesktop.org/archives/systemd-devel/2015-May/032061.html
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If systemd is built with GCC address sanitizer or leak sanitizer
the following memory leak ocurs:
May 12 02:02:46 linux.site systemd[326]: =================================================================
May 12 02:02:46 linux.site systemd[326]: ==326==ERROR: LeakSanitizer: detected memory leaks
May 12 02:02:46 linux.site systemd[326]: Direct leak of 101 byte(s) in 3 object(s) allocated from:
May 12 02:02:46 linux.site systemd[326]: #0 0x7fd1f504993f in strdup (/usr/lib64/libasan.so.2+0x6293f)
May 12 02:02:46 linux.site systemd[326]: #1 0x55d6ffac5336 in strv_new_ap src/shared/strv.c:163
May 12 02:02:46 linux.site systemd[326]: #2 0x55d6ffac56a9 in strv_new src/shared/strv.c:185
May 12 02:02:46 linux.site systemd[326]: #3 0x55d6ffa80272 in generator_paths src/shared/path-lookup.c:223
May 12 02:02:46 linux.site systemd[326]: #4 0x55d6ff9bdb0f in manager_run_generators src/core/manager.c:2828
May 12 02:02:46 linux.site systemd[326]: #5 0x55d6ff9b1a10 in manager_startup src/core/manager.c:1121
May 12 02:02:46 linux.site systemd[326]: #6 0x55d6ff9a78e3 in main src/core/main.c:1667
May 12 02:02:46 linux.site systemd[326]: #7 0x7fd1f394e8c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)
May 12 02:02:46 linux.site systemd[326]: Direct leak of 29 byte(s) in 1 object(s) allocated from:
May 12 02:02:46 linux.site systemd[326]: #0 0x7fd1f504993f in strdup (/usr/lib64/libasan.so.2+0x6293f)
May 12 02:02:46 linux.site systemd[326]: #1 0x55d6ffac5288 in strv_new_ap src/shared/strv.c:152
May 12 02:02:46 linux.site systemd[326]: #2 0x55d6ffac56a9 in strv_new src/shared/strv.c:185
May 12 02:02:46 linux.site systemd[326]: #3 0x55d6ffa80272 in generator_paths src/shared/path-lookup.c:223
May 12 02:02:46 linux.site systemd[326]: #4 0x55d6ff9bdb0f in manager_run_generators src/core/manager.c:2828
May 12 02:02:46 linux.site systemd[326]: #5 0x55d6ff9b1a10 in manager_startup src/core/manager.c:1121
May 12 02:02:46 linux.site systemd[326]: #6 0x55d6ff9a78e3 in main src/core/main.c:1667
May 12 02:02:46 linux.site systemd[326]: #7 0x7fd1f394e8c4 in __libc_start_main (/lib64/libc.so.6+0x208c4)
May 12 02:02:46 linux.site systemd[326]: SUMMARY: AddressSanitizer: 130 byte(s) leaked in 4 allocation(s).
There is a leak due to the the use of cleanup_free instead _cleanup_strv_free_
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Before:
May 12 17:11:22 tomegun-x2402 systemd[1]: systemd-udevd.service: Got notification message for unit.
May 12 17:11:22 tomegun-x2402 systemd[1]: systemd-udevd.service: Got notification message from PID 195 (READY=1)
May 12 17:11:22 tomegun-x2402 systemd[1]: systemd-udevd.service: Ggot READY=1
After:
May 12 17:11:22 tomegun-x2402 systemd[1]: systemd-udevd.service: Got notification message from PID 195 (READY=1)
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It's primarily just a property of the Manager object after all, and we
try to refer to PID 1 as "manager" instead of "systemd", hence let's to
stick to this here too.
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This changes log_unit_info() (and friends) to take a real Unit* object
insted of just a unit name as parameter. The call will now prefix all
logged messages with the unit name, thus allowing the unit name to be
dropped from the various passed romat strings, simplifying invocations
drastically, and unifying log output across messages. Also, UNIT= vs.
USER_UNIT= is now derived from the Manager object attached to the Unit
object, instead of getpid(). This has the benefit of correcting the
field for --test runs.
Also contains a couple of other logging improvements:
- Drops a couple of strerror() invocations in favour of using %m.
- Not only .mount units now warn if a symlinks exist for the mount
point already, .automount units do that too, now.
- A few invocations of log_struct() that didn't actually pass any
additional structured data have been replaced by simpler invocations
of log_unit_info() and friends.
- For structured data a new LOG_UNIT_MESSAGE() macro has been added,
that works like LOG_MESSAGE() but prefixes the message with the unit
name. Similar, there's now LOG_LINK_MESSAGE() and
LOG_NETDEV_MESSAGE().
- For structured data new LOG_UNIT_ID(), LOG_LINK_INTERFACE(),
LOG_NETDEV_INTERFACE() macros have been added that generate the
necessary per object fields. The old log_unit_struct() call has been
removed in favour of these new macros used in raw log_struct()
invocations. In addition to removing one more function call this
allows generated structured log messages that contain two object
fields, as necessary for example for network interfaces that are
joined into another network interface, and whose messages shall be
indexed by both.
- The LOG_ERRNO() macro has been removed, in favour of
log_struct_errno(). The latter has the benefit of ensuring that %m in
format strings is properly resolved to the specified error number.
- A number of logging messages have been converted to use
log_unit_info() instead of log_info()
- The client code in sysv-generator no longer #includes core code from
src/core/.
- log_unit_full_errno() has been removed, log_unit_full() instead takes
an errno now, too.
- log_unit_info(), log_link_info(), log_netdev_info() and friends, now
avoid double evaluation of their parameters
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Whenever systemd is re-executed, it tries to create a system bus via
kdbus. If the system did not have kdbus loaded during bootup, but the
module is loaded later on manually, this will cause two system buses
running (kdbus and dbus-daemon in parallel).
This patch makes sure we never try to create kdbus buses if it wasn't
explicitly requested on the command-line.
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A variety of changes:
- Make sure all our calls distuingish OOM from other errors if OOM is
not the only error possible.
- Be much stricter when parsing escaped paths, do not accept trailing or
leading escaped slashes.
- Change unit validation to take a bit mask for allowing plain names,
instance names or template names or an combination thereof.
- Refuse manipulating invalid unit name
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Introduce a new call unit_type_supported() and make use of it
everywhere.
Also, drop Manager parameter from per-type supported method prototype.
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These looked like a mass-replace gone slightly wrong – two statements
with no { }'s, and no error checking.
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It's better to continue as good as we can, than to totally fail. Hence,
let's log about the failure and continue.
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This reverts commit 6e392c9c45643d106673c6643ac8bf4e65da13c1.
We really shouldn't invent external state keeping hashmaps, if we can
keep this state in the units themselves.
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Change cunescape() to return a normal error code, so that we can
distuingish OOM errors from parse errors.
This also adds a flags parameter to control whether "relaxed" or normal
parsing shall be done. If set no parse failures are generated, and the
only reason why cunescape() can fail is OOM.
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- Move to its own file rm-rf.c
- Change parameters into a single flags parameter
- Remove "honour sticky" logic, it's unused these days
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Even if plymouth is running, it might have not displayed the splash yet,
so we'll see a few lines on fbcon when we should have otherwise had
nothing.
Plymouth integration was added to systemd in commit
6faa11140bf776cdaeb8d22d01816e6e48296971. That same day, Plymouth got
systemd integration [0]. As such, the Plymouth integration has always
been obsolete, and was probably only for older Plymouth's. But I can't
imagine anybody running a Plymouth from 2011 with a systemd from 2015.
Remove the Plymouth/systemd integration, and let Plymouth's code tell
systemd to print the details.
[0] http://cgit.freedesktop.org/plymouth/commit/?id=537c16422cd49f1beeaab1ad39846a00018faec1
Signed-off-by: Jasper St. Pierre <jstpierre@mecheye.net>
Cc: Daniel Drake <dsd@endlessm.com>
Cc: Ray Strode <rstrode@redhat.com>
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Mar 13 19:48:28 adam.happyassassin.net systemd[1]: Collecting (null)
Mar 13 19:48:28 adam.happyassassin.net systemd[1]: Collecting (null)
Mar 13 19:48:28 adam.happyassassin.net systemd[1]: Collecting (null)
Mar 13 19:48:28 adam.happyassassin.net systemd[1]: Collecting (null)
Mar 13 19:48:28 adam.happyassassin.net systemd[1]: Collecting (null)
Mar 13 19:48:28 adam.happyassassin.net systemd[1]: Collecting (null)
Mar 13 19:48:28 adam.happyassassin.net systemd[1]: Collecting (null)
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CID #1261729.
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CID #1237559.
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CID #1287142.
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Because the order of coldplugging is not defined, we can reference a
not-yet-coldplugged unit and read its state while it has not yet been
set to a meaningful value.
This way, already active units may get started again.
We fix this by deferring such actions until all units have been at
least somehow coldplugged.
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=88401
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Otherwise every daemon reload prints out warnings like:
systemd[1]: Unit type .busname is not supported on this system.
systemd[1]: Unit type .swap is not supported on this system.
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By notifying the clients when this property is changed it's possible to
allow "system health monitor" tools to get transitions like
running<->degraded. This is an alternative to send changes on the
SystemState property since the latter is more difficult to derive.
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This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
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include-what-you-use automatically does this and it makes finding
unnecessary harder to spot. The only content of poll.h is a include
of sys/poll.h so should be harmless.
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After all it is now much more like strjoin() than strappend(). At the
same time, add support for NULL sentinels, even if they are normally not
necessary.
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on the console too
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This should be useful for cases where clean rebooting doesn't work, and
the user wants to hurry up the reboot.
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With this change the pull protocol implementation processes will pass
progress data to importd which then passes this information on via the
bus. We use sd_notify() as generic transport for this communication,
making importd listen to them, while matching the incoming messages to
the right transfer.
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Types used for pids and uids in various interfaces are unpredictable.
Too bad.
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The kernel module system is not namespaced, so no container should ever
modify global options. Make sure we set the kdbus attach_flags_mask only
on a real boot as PID1.
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Sometimes it is necessary to stop a generator from running. Either
because of a bug, or for testing, or some other reason. The only way
to do that would be to rename or chmod the generator binary, which is
inconvenient and does not survive upgrades. Allow masking and
overriding generators similarly to units and other configuration
files.
For the systemd instance, masking would be more common, rather than
overriding generators. For the user instances, it may also be useful
for users to have generators in $XDG_CONFIG_HOME to augment or
override system-wide generators.
Directories are searched according to the usual scheme (/usr/lib,
/usr/local/lib, /run, /etc), and files with the same name in higher
priority directories override files with the same name in lower
priority directories. Empty files and links to /dev/null mask a given
name.
https://bugs.freedesktop.org/show_bug.cgi?id=87230
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Remove the optional sepearate opening of the directory,
it would be just too complicated with the change to
multiple directories.
Move the middle of execute_directory() to a seperate
function to make it easier to grok.
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With this change it is possible to send file descriptors to PID 1, via
sd_pid_notify_with_fds() which PID 1 will store individually for each
service, and pass via the usual fd passing logic on next invocation.
This is useful for enable daemon reload schemes where daemons serialize
their state to /run, push their fds into PID 1 and terminate, restoring
their state on next start from the data in /run and passed in from PID
1.
The fds are kept by PID 1 as long as no POLLHUP or POLLERR is seen on
them, and the service they belong to are either not dead or failed, or
have a job queued.
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Let's unify the code that counts the running jobs a bit, in order to
make sure we are less likely to miss one.
This is related to this bug:
https://bugs.freedesktop.org/show_bug.cgi?id=87349
However, it probably won't fix it fully, and I cannot reproduce the issue.
The change also adds an explicit assert change when the counter is off.
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hidden_file() is a bit more precise, since dot files usually shouldn't
be ignored, but certainly be considered hidden.
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Containers do not really support .device, .automount or .swap units;
Systems compiled without support for swap do not support .swap units;
Systems without kdbus do not support .busname units.
With this change attempts to start a unsupported unit types will result
in an immediate "unsupported" job result, which is a lot more
descriptive then before. Also, attempts to start device units in
containers will now immediately fail instead of causing jobs to be
enqueued that never go away.
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src/libsystemd/sd-bus/bus-common-errors.h
Stuff in src/shared/ should not use stuff from src/libsystemd/ really.
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