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Make use of curl_multi_assign to associate each IO sd_event_source with
a CURL object. This means we always get passed the right event source
and don't need to worry about looking up the associated CURL object,
particularly in the case where the FD has been closed on a REMOVE event.
In Ubuntu CI, udev-test.pl is run from the debian/test/udev script,
in a test dir created for it; but udev-test.pl setup mounts a
dir, so if it doesn't cleanup/unmount before exiting, the test dir
autopkgtest created for it can't be removed, and autopkgtest
aborts the entire test suite, for example this output (from a
test run inside an armhf container):
autopkgtest [12:45:36]: test udev: [-----------------------
umount: test/tmpfs: no mount point specified.
mknod: test/tmpfs/dev/null: Operation not permitted
unable to create test/tmpfs/dev/null at ./udev-test.pl line 1611.
Failed to set up the environment, skipping the test at ./udev-test.pl line 1731.
autopkgtest [12:45:41]: test udev: -----------------------]
autopkgtest [12:45:44]: test udev: - - - - - - - - - - results - - - - - - - - - -
udev FAIL non-zero exit status 77
rm: cannot remove '/tmp/autopkgtest.ocPFA6/autopkgtest_tmp/test/tmpfs': Device or resource busy
autopkgtest [12:46:22]: ERROR: "rm -rf /tmp/autopkgtest.ocPFA6/udev-artifacts /tmp/autopkgtest.ocPFA6/autopkgtest_tmp" failed with stderr "rm:
Fixes#12258.
This is enough to reproduce:
$ systemd-run bash -c 'sleep 10' && systemctl daemon-reload
would result in
Current command vanished from the unit file.
We would serialize as:
ExecStart 0 /usr/bin/bash /usr/bin/bash -c sleep 10000
which of course can't work.
Now we serialize as
ExecStart 0 /usr/bin/bash "/usr/bin/bash" "-c" "sleep 10".
If execve failed, we would die in safe_close(), because master was already
closed by fdset_close_others() on line 3123. IIUC, we don't need to keep the
fd open after sending it, so let's just close it immediately.
Reproducer:
sudo build/systemd-nspawn -M rawhide fooooooo
Fixup for 3acc84ebd9.
The `set -e` option is incompatible with a subshell/compound command,
which is followed by || <EXPR>. In such case, the -e option is ignored
in all affected subshells/functions (see man bash(1) for command `set`).
In certain cases we might attempt to install a binary which is already
present in the test image, yet it's missing from the host system.
In such cases, let's check if the binary indeed exists in the image
before doing any other chcecks. If it does, immediately return with
success.
This was discovered during installation of
/usr/lib/systemd/systemd-bless-boot, which was not present in Ubuntu CI
(as the installed systemd was from the Ubuntu repositories), and the
binary itself was already in the image thanks to `ninja install`.
However, during extraction of binaries from the systemd service files,
another attempt to install this binary was made, which failed due to
`find_binary` being unable to find it.
We use that on all other services, and hence should here too. Otherwise
the service will be killed with SIGSYS when doing something not
whitelisted, which is a bit crass.
When a DHCP server provides only a gateway, the networkd-dhcp4 code adds a
default route using that gateway, and sets the just-provided address as
the route's prefsrc; this was added in commit
46b0c76e2c
However, if the DHCP server has also provided classless route(s), these
are used instead of a default route using the provided gateway; the
networkd-dhcp4 code sets up the classless routes, but does not use the
just-provided dhcp address as the prefsrc of the route(s). Note that
it also doesn't set the prefsrc for static routes, though it should.
If the interface has only the dhcp-provided address, this is not usually
a problem, but if it has another address (e.g. a static address), then
traffic sent through the dhcp-provided gateway might not use the
dhcp-provided source address. If the gateway router only will route
traffic from the dhcp-provided address, then the dhcp client system's
networking through the router will not work.
Fixes: #12969
$ systemd-analyze dump | head -3
Timestamp firmware: (null)
Timestamp loader: (null)
Timestamp kernel: Mon 2019-07-01 17:21:02 CEST
Since this is a debugging interface, it is OK to change the output format.
The user can infer what "Timestamp firmware: 123.456ms" means.
