The call would always fail with:
systemd-userwork[780]: Failed to dlopen(libnss_systemd.so.2), ignoring: /usr/lib64libnss_systemd.so.2: cannot open shared object file: No such file or directory
xdg-autostart: ignore all empty entries in multi-string entries
The desktop file specification allows entries like ";;;;;;", full of empty strings.
But looking at the actual list of supported keys [1], empty entries are meaningless
(unless we would allow e.g. the desktop name to be the empty string. But that doesn't
seem very useful either). So let's just simplify our life and skip any empty substrings
entirely.
This would also resolve the fuzzer case:
$ valgrind build/fuzz-xdg-desktop test/fuzz/fuzz-xdg-desktop/oss-fuzz-22812
test/fuzz/fuzz-xdg-desktop/oss-fuzz-22812... ok
==2899241== HEAP SUMMARY:
==2899241== in use at exit: 0 bytes in 0 blocks
==2899241== total heap usage: 484,385 allocs, 484,385 frees, 12,411,330 bytes allocated
↓
==2899650== HEAP SUMMARY:
==2899650== in use at exit: 0 bytes in 0 blocks
==2899650== total heap usage: 1,325 allocs, 1,325 frees, 1,463,602 bytes allocated
xdg-autostart: avoid quadratic behaviour in strv parsing
The fuzzer test case has a giant line with ";;;;;;;;;;;..." which is turned into
a strv of empty strings. Unfortunately, when pushing each string, strv_push() needs
to walk the whole array, which leads to quadratic behaviour. So let's use
greedy_allocation here and also keep location in the string to avoid iterating.
build/fuzz-xdg-desktop test/fuzz/fuzz-xdg-desktop/oss-fuzz-22812 51.10s user 0.01s system 99% cpu 51.295 total
↓
build/fuzz-xdg-desktop test/fuzz/fuzz-xdg-desktop/oss-fuzz-22812 0.07s user 0.01s system 96% cpu 0.083 total
Other minor changes:
- say "was already defined" instead of "defined multiple times" to make it
clear that we're ignoring this second definition, and not all definitions
of the key
- unescaping needs to be done also for the last entry
core: refresh unit cache when building a transaction if UNIT_NOT_FOUND
When a command asks to load a unit directly and it is in state
UNIT_NOT_FOUND, and the cache is outdated, we refresh it and
attempto to load again.
Use the same logic when building up a transaction and a dependency in
UNIT_NOT_FOUND state is encountered.
Update the unit test to exercise this code path.
Michael Marley [Sun, 5 Jul 2020 10:46:27 +0000 (06:46 -0400)]
network: Don't send RA with zero router lifetime when restarting radv
While investigating https://github.com/systemd/systemd/issues/16356, I
discovered that networkd stops the radv service before adding or updating
prefixes and then starts it again. This causes networkd to send an RA with
a router lifetime of zero, causing the routes to flap on systems receiving
the RA for a fraction of a second before radv is started again and proper
RAs are sent. That has the potential to cause issues with latency-sensitive
traffic like gaming or VoIP. This patch adds a boolean argument to the
sd_radv_stop() function to control this behavior. The zero lifetime RA is
still sent whenever radv is actually being stopped, but when it is being
restarted for a prefix update (from networkd-dhcp6.c), the final RA is no
longer sent to avoid the route flapping.
For users, the square brackets already serve as markup and clearly delineate
the section name from surrounding text. Putting additional markup around that
only adds clutter. Also, we were very inconsistent in using the quotes. Let's
just drop them altogether.
Let's install libzstd & libfido2 to cover two recently added features.
In case of libfido2 this should also get rid of the 'dead code' issues
found by Coverity, like CID#1430168, CID#1430167, CID#1430166, or
CID#1430165.
shared/install: do not require /dev/null to be present in chroots
This partially undoes the parent commit. We follow the symlink and
if it appears to be a symlink to /dev/null, even if /dev/null is not
present, we treat it as such. The addition of creation of /dev/null
in the test is reverted.
Right now systemd-update-utmp.service would fail on read-only /var because
it was not able to write the wtmp record. But it still writes the utmp
record just fine, so runtime information is OK. I don't think we need to
make too much fuss about not being able to save wtmp info.
test: use KILL instead of SIGKILL in TEST-52-HONORFIRSTSHUTDOWN
SIG-prefixed signals for `kill` are not POSIX compliant, so on Ubuntu CI
(which defaults to dash instead of bash) the TEST-52 contains following
error:
Dan Callaghan [Fri, 3 Jul 2020 09:13:08 +0000 (19:13 +1000)]
core: set private section name for automount units
Because this was left unset, the unit_write_setting() function was
refusing to write out the automount-specific TimeoutIdleSec= and
DirectoryMode= settings when creating transient automount units.
Set it to the proper value in line with other unit types.
Anita Zhang [Thu, 28 May 2020 19:09:32 +0000 (12:09 -0700)]
core: check null_or_empty for masked units instead of /dev/null
There's some inconsistency in the what is considered a masked unit:
some places (i.e. load-fragment.c) use `null_or_empty()` while others
check if the file path is symlinked to "/dev/null". Since the latter
doesn't account for things like non-absolute symlinks to "/dev/null",
this commit switches the check for "/dev/null" to use `null_or_empty_path()`
various daemons: emit Stopping... notification before destructing the manager object
This is mostly cosmetic, but let's reorder the destructors so that
we do the final sd_notify() call before we run the destructor for
the manager object.
projects / thirdparty / systemd.git / log
