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Let's merge access_init() and mac_selinux_access_init(), and only call
mac_selinux_use() once, inside the merged function, instead of multiple
times, including in the caller.
See comments on:
https://github.com/systemd/systemd/pull/2053
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GLIB has recently started to officially support the gcc cleanup
attribute in its public API, hence let's do the same for our APIs.
With this patch we'll define an xyz_unrefp() call for each public
xyz_unref() call, to make it easy to use inside a
__attribute__((cleanup())) expression. Then, all code is ported over to
make use of this.
The new calls are also documented in the man pages, with examples how to
use them (well, I only added docs where the _unref() call itself already
had docs, and the examples, only cover sd_bus_unrefp() and
sd_event_unrefp()).
This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we
tend to call our destructors these days.
Note that this defines no public macro that wraps gcc's attribute and
makes it easier to use. While I think it's our duty in the library to
make our stuff easy to use, I figure it's not our duty to make gcc's own
features easy to use on its own. Most likely, client code which wants to
make use of this should define its own:
#define _cleanup_(function) __attribute__((cleanup(function)))
Or similar, to make the gcc feature easier to use.
Making this logic public has the benefit that we can remove three header
files whose only purpose was to define these functions internally.
See #2008.
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If pid < 0 after fork(), 0 is always returned because r =
exec_context_load_environment() has exited successfully.
This will make the caller of exec_spawn() not able to handle
the fork() error case and make systemd abort assert() possibly.
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drop warning if setting preset worked anyways
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core: Do not bind a mount unit to a device, if it was from mountinfo
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core: allow 'SetUnitProperties()' to run on inactive units too
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Return of the file triggers
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core: rename Random* to RandomizedDelay*
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* refuse limits if soft > hard
* print an actual value instead of (null)
see https://github.com/systemd/systemd/pull/1994#issuecomment-159999123
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The name RandomSec is too generic: "Sec" just specifies the default
unit type, and "Random" by itself is not enough. Rename to something
that should give the user general idea what the setting does without
looking at documentation.
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core: support <soft:hard> ranges for RLIMIT options
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The new parser supports:
<value> - specify both limits to the same value
<soft:hard> - specify both limits
the size or time specific suffixes are supported, for example
LimitRTTIME=1sec
LimitAS=4G:16G
The patch introduces parse_rlimit_range() and rlim type (size, sec,
usec, etc.) specific parsers. No code is duplicated now.
The patch also sync docs for DefaultLimitXXX= and LimitXXX=.
References: https://github.com/systemd/systemd/issues/1769
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If a mount unit is bound to a device, systemd tries to umount the
mount point, if it thinks the device has gone away.
Due to the uevent queue and inotify of /proc/self/mountinfo being two
different sources, systemd can never get the ordering reliably correct.
It can happen, that in the uevent queue ADD,REMOVE,ADD is queued
and an inotify of mountinfo (or libmount event) happend with the
device in question.
systemd cannot know, at which point of time the mount happend in the
ADD,REMOVE,ADD sequence.
The real ordering might have been ADD,REMOVE,ADD,mount
and systemd might think ADD,mount,REMOVE,ADD and would umount the
mountpoint.
A test script which triggered this behaviour is:
rm -f test-efi-disk.img
dd if=/dev/null of=test-efi-disk.img bs=1M seek=512 count=1
parted --script test-efi-disk.img \
"mklabel gpt" \
"mkpart ESP fat32 1MiB 511MiB" \
"set 1 boot on"
LOOP=$(losetup --show -f -P test-efi-disk.img)
udevadm settle
mkfs.vfat -F32 ${LOOP}p1
mkdir -p mnt
mount ${LOOP}p1 mnt
... <dostuffwith mnt>
Without the "udevadm settle" systemd unmounted mnt while the script was
operating on mnt.
Of course the question is, why there was a REMOVE in the first place,
but this is not part of this patch.
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FOREACH_WORD_SEPARATOR is no need here since we only
apply only one mount flag. The rvalue is sufficient for
this.
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make sure all swap units are ordered before the swap target
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At least the %filetriggerpostun script can be invoked hundreds of
times during an upgrade, so it makes sense to optimize it a bit.
assert(exec(...)) is used because of https://bugzilla.redhat.com/show_bug.cgi?id=1094072.
Add -P (--priority) to have %filetriggerpostun run as early as
possible (before any reload/stop actions), and %transfiletriggerin as
late as possible (after any enable/disable/preset actions).
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When shutting down the system, the swap devices can be disabled long
time before the swap target is stopped. They're actually the first
units systemd turns off on my system.
This is incorrect and due to swap devices having multiple associated
swap unit files. The main one is usually created by the fstab
generator and is used to start the swap device.
Once done, systemd creates some 'alias' units for the same swap
device, one for each swap dev link. But those units are missing an
ordering dependencies which was created by the fstab generator for the
main swap unit.
Therefore during shutdown those 'alias' units can be stopped at
anytime before unmount.target target.
This patch makes sure that all swap units are stopped after the
swap.target target.
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This turns out to be more complicated than it looked initially...
%transfiletriggerun is called early, while %transfiletriggerin is
called late, and neither satifisfies the requirement to call
daemon-reload after new unit files have been installed, but before
%postun scripts in packages get to fire.
It seems that the only solution is to use %filetriggerun (which
is called once per package) to do the reload, and keep state in
/var/lib/rpm-state/systemd/ to avoid calling the reload multiple
times.
https://fedoraproject.org/wiki/Packaging:ScriptletSnippets#Saving_state_between_scriptlets
says that /var/lib/rpm-state/systemd/ is the right dir.
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Escape "--user" and "--global" arguments with "\\" since rpm treats
arguments starting with "-" as macro options which causes "Unknown
option" rpm error.
Use %{expand:...} to force expansion of the inner macro. Otherwise %{?*}
is recursively defined as "\--user \--global {%?*}" which causes
"Too many levels of recursion in macro expansion" rpm error.
Thanks to Michael Mráka for helping me fix the above issues.
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'set-property' has been primarly designed to change some properties of
*active* units.
However it can easily work on inactive units as well. In that case
changes are only saved in a drop-in for futur uses and changes will be
effective when unit will be started.
Actually it already works on inactive units but that was not
documented and not fully supported. Indeed the inactive units had to
be known by the manager otherwise it was reported as not loaded:
$ systemctl status my-test.service
* my-test.service - My Testing Unit
Loaded: loaded (/etc/systemd/system/my-test.service; static; vendor preset: disabled)
Drop-In: /etc/systemd/system/my-test.service.d
Active: inactive (dead)
$ systemctl set-property my-test.service MemoryLimit=1000000
Failed to set unit properties on my-test.service: Unit my-test.service is not loaded.
[ Note: that the unit load state reported by the 'status' command
might be confusing since it claimed the unit as loaded but
'set-property' reported the contrary. ]
One can possibily workaround this by making the unit a dependency of
another active unit so the manager will keep it around:
$ systemctl add-wants multi-user.target my-test.service
Created symlink from /etc/systemd/system/multi-user.target.wants/my-test.service to /etc/systemd/system/my-test.service.
$ systemctl set-property my-test.service MemoryLimit=1000000
$ systemctl status my-test.service
* my-test.service - My Testing Unit
Loaded: loaded (/etc/systemd/system/my-test.service; enabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/my-test.service.d
`-50-MemoryLimit.conf
Active: inactive (dead)
This patch simply forces 'SetUnitProperties()' to load the unit if
it's not already the case.
It also documents the fact that 'set-property' can be used on inactive
units.
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This function is used to check that a previous unit load succeed and
returns 0 in this case.
In the case the load failed, the function setup a bus error
accordingly and returns -errno.
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tree-wide: sort includes in *.h
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This is a continuation of the previous include sort patch, which
only sorted for .c files.
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This allows configuration of a random time on top of the elapse events,
in order to spread time events in a network evenly across a range.
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socket: Add support for socket protcol
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Now we don't support the socket protocol like
sctp and udplite .
This patch add a new config param
SocketProtocol: udplite/sctp
With this now we can configure the protocol as
udplite = IPPROTO_UDPLITE
sctp = IPPROTO_SCTP
Tested with nspawn:
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Previously, after a timer unit elapsed we'd leave it around for good,
which has the nice benefit that starting a timer that shall trigger at a
specific point in time multiple times will only result in one trigger
instead of possibly many. With this change a new option
RemainAfterElapse= is added. It defaults to "true", to mimic the old
behaviour. If set to "false" timer units will be unloaded after they
elapsed. This is specifically useful for transient timer units.
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We only reorder a few things and modernize some constructs. No
functional changes.
- Move some if checks from the caller to the callee of a few functions.
- Use IN_SE() where we can
- Move status printing functions together
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Let's reset more stuff that does not apply to transient units. Also,
let's readd the unito to all queues, because it's identity now changed.
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manager_load_unit() will dispatch the load queue anyway, but let's make
sure we also dispatch it immediately, after truning a unit into a
transient one and loading the properties from the message. That way the
know about the validity of the unit before we begin processing the next
auxiliary unit.
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Lets introduce unit_is_pristine() that verifies whether a unit is
suitable to become a transient unit, by checking that it is no
referenced yet and has no data on disk assigned.
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Let's move the validation checks into the loop that sets up the main and
auxiliary transient units, so that we can generate pretty error messages
for all units a transient unit transaction generates, not just for the
main unit.
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Move daemon-reload from package %post scripts to file triggers
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tree-wide: group include of libudev.h with sd-*
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--user due to EACCES
After all, in the classic hierarchy that's pretty much the default case.
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Sort the includes accoding to the new coding style.
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Also, enable TasksAccounting= for all services by default, too.
See:
http://lists.freedesktop.org/archives/systemd-devel/2015-November/035006.html
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This uses new functionality added in rpm 4.13. Instead of doing
one daemon-reload per packages, we do just one or two
(When both installing and uninstalling packages, we do
two. Unfortunately this also includes the common case of upgrades.
When only installing or when only installing, we do just one.)
New file triggers.systemd can be built, but the contents have
to be copied into the rpm spec file by hand. Using %{load} does
not seem to work. It can serve as documentation.
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bool anymore
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This allows initializing the TasksMax= setting of all units by default
to some fixed value, instead of leaving it at infinity as before.
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units, too
We added this for the per-unit setting, hence let's enable this for the
global default settings too.
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Remove support for RequiresOverridable= and RequisiteOverridable=
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core: use SD_EVENT_PRIORITY_NORMAL-n instead on -n
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