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Commit 83f72cd65f ("man,docs: document the new unit file directory for
attached images") updated the docs and man page with the new unit file
directory for attached images but included a system.attached ->
systemd.attached typo in the man page portion of the change. Fix the
typo to document the correct path.
sd_bus_get_fd() and related calls are useful for integrating a bus
connection into arbitrary event loops. But sd_bus_set_fd() is quite a
different beast, it's for using D-Bus over pre-initialized sockets or
pairs of fifos or stuff, i.e. very advanced stuff.
Let's split this man page in two, in order not to confuse things
needlessly.
And while we are at it, let's slightly extend the documentation.
argv[0] might be prefixed by a path, and we shouldn't get confused by
that. Hence provide a simple helper call that abstracts the checking
away, which we can use everywhere, and expose the same behaviour, even
if argv[0] is not set.
(While we are at it, port all other multi-call binaries over to the new
helper, too)
Follow-up for: d41a9e4fc1
freep() has it's own definition, so I missed it in fd421c4adc.
Again, there is a small growth, but the compiler should be able to optimize it away:
-Dbuildtype=debug:
-rwxrwxr-x 1 zbyszek zbyszek 4106816 Feb 19 12:52 build/libsystemd.so.0.30.0
-rwxrwxr-x 1 zbyszek zbyszek 7492952 Feb 19 12:52 build/src/shared/libsystemd-shared-247.so
-rwxrwxr-x 1 zbyszek zbyszek 4472624 Feb 19 12:53 build/systemd
-rwxrwxr-x 1 zbyszek zbyszek 4107056 Feb 19 13:03 build/libsystemd.so.0.30.0
-rwxrwxr-x 1 zbyszek zbyszek 7493480 Feb 19 13:03 build/src/shared/libsystemd-shared-247.so
-rwxrwxr-x 1 zbyszek zbyszek 4472760 Feb 19 13:03 build/systemd
Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31055.
See https://wiki.gnome.org/HowDoI/DBusApplicationLaunching and
https://wiki.gnome.org/Initiatives/GnomeGoals/DBusActivatable for a description
of this key:
> Instead of the typical UNIX-style fork()/exec() approach to process creation,
> launching an application is done by sending a D-Bus message to the well-known
> name of that application, causing a D-Bus activation.
>
> Starting processes with D-Bus activation ensures that each application gets
> started in its own pristine environment, as a direct descendent of the
> session -- not in the environment of whatever its parent happened to be. This
> is important for ensuring the app ends up in the correct cgroup, for example.
So this motivation is not important for us: we launch stuff ourselves better.
This fixes warnings during boot:
systemd-xdg-autostart-generator[2274]: /etc/xdg/autostart/org.freedesktop.problems.applet.desktop:92: Unknown key name 'DBusActivatable' in section 'Desktop Entry', ignoring.
Otherwise, nexthop_configure() -> nexthop_add() creates NextHop object
without ID in link->nexthop, and then, manager_rtnl_process_nexthop() ->
nexthop_add_foreign() also creates another NextHop object with ID in
link->nexthop_foreign.
Previously, any positive boolean string for IPMasquerade= enables only IPv4
masquerade. The commit 48ed276647 adds
IPv6 masquerade support. However, only "yes" is handled as "ipv4", and other
positive boolean strings are handled as "both".
This makes all positive boolean strings considered as "ipv4", warn that they
are deprecated, and suggest to use "ipv4" or "both".
Follow-up for 48ed276647.
oomd.conf has two parameters with fractionals: SwapUsedLimit= and
DefaultMemoryPressureLimit=, but one accepts permyriads, the other only
percentages, for no apparent reason. One carries the "Percent" in the
name, the other doesn't.
Let's clean this up: always accept permyriads, and drop the suffix,
given that it is misleading.
I figure we should internally try to focus on scaling everything
relative to UINT32_MAX, and if that isn't in the cards at least 10000,
but never permille nor percent unless there's a really really good
reason for it (e.g. interface defined by someone else).
So far OOMD limits used permyriads, as an upgrade from the original
percent.
The rest of our codebase typically scales stuff relative to UINT32_MAX.
Let's clean this up, an make sure this happens here too. This is
particularly relevant, as this is exposed in unit files and API, and
before we mark this stable we should get the APIs right.
Let's define a set of macros for making output of permyriad values easy.
They are printed in pure ASCII, i.e. without the permille/permyriad
suffix, using just percent and two places after the dot.
