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THe match cookie was used by kdbus to identify matches we install
uniquely. But given that kdbus is gone, the cookie serves no process
anymore, let's kill it.
When debug logging is enabled we show brief information about every bus
message we send or receieve. Pretty much all information is shown,
except for the error name if a message is an error (interestingly we do
print the error text however). Fix that, and add the error name as well.
The script wasn't apparently used since the switch to meson, because
it required the sys subdirectory to be present in the same subdirectory
where the output script is located.
Let's use f-strings to make the whole thing more readable. Add some
extra checks.
This is primarly useful to support escaped double quotes in PROGRAM or
IMPORT{program} directives.
The only possibilty before this patch was to use an external shell script but
this seems too cumbersome for trivial logics such as
PROGRAM=="/bin/sh -c 'FOO=\"%s{model}\"; echo ${FOO:0:4}'"
or any similar shell constructs that needs to deals with patterns including
whitespaces.
As it's the case for single quote and for directives running a program, words
within escaped double quotes will be considered as a single argument.
Fixes: #6835
Starting with kernel version 4.8 the kernel has a single `l3mdev` rule
that handles this. This rule will be created when the first VRF device
is added.
When an interface has been enslaved to a VRF the received routes should
be added to the VRFs RT instead of the main table.
This change modifies the default behaviour of routes in the case where a
network belongs to an VRF. When the user does not configure a
`DHCP.RouteTable` in a `systemd.network` file and the interface belongs
to a VRF, the VRFs routing table is used instead of RT_TABLE_MAIN.
When the user has configured a custom routing table for DHCP the VRFs
table is ignored and the users preference takes precedence.
This slightly changes how we log about failures. Previously,
service_enter_dead() would log that a service unit failed along with its
result code, and unit_notify() would do this again but without the
result code. For other unit types only the latter would take effect.
This cleans this up: we keep the message in unit_notify() only for debug
purposes, and add type-specific log lines to all our unit types that can
fail, and always place them before unit_notify() is invoked.
Or in other words: the duplicate log message for service units is
removed, and all other unit types get a more useful line with the
precise result code.
This makes sure that if we learn via inotify or another event source
that a cgroup is empty, and we checked that this is indeed the case (as
we might get spurious notifications through inotify, as the inotify
logic through the "cgroups.event" is pretty unspecific and might be
trigger for a variety of reasons), then we'll enqueue a defer event for
it, at a priority lower than SIGCHLD handling, so that we know for sure
that if there's waitid() data for a process we used it before
considering the cgroup empty notification.
Fixes: #6608
We are about to add second cgroup-related queue, called
"cgroup_empty_queue", hence let's rename "cgroup_queue" to
"cgroup_realize_queue" (as that is its purpose) to minimize confusion
about the two queues.
Just a rename, no functional changes.
From bce67bbee3, systemd-networkd always shows
```
rtnl: received address with invalid family type 32, ignoring.
```
during boot-up. In the code, there are log_warning() and log_debug() for the
same situation, and the log_debug() is never called. So, let's lower the
log level and remove never called function.
Normally, Symlinks= failing is not considered fatal nor destructive.
Let's slightly alter behaviour here if RemoveOnStop= is turned on. In
that case the use in a way opted for destructive behaviour and we do
unlink all sockets and symlinks when the socket unit goes down. And that
means we might as well unlink any pre-existing if this mode is selected.
Yeah, it's a bit of a stretch to do this, but @OhNoMoreGit is right: if
RemoveOnStop= is on we are destructive regarding any pre-existing
symlinks on stop, and it would be quite weird if we wouldn't be on
start.
Note that this change does not make symlink creation failing fatal. I am
not entirely sure about whether it should be, but I am leaning towards
not making it fatal for two reasons: symlinks like this tend to be a
compatibility feature, and hence unlikely to be essential for operation,
in a way this breaks compatibility, and while doing that is not off the
table, we should probably avoid it if we are not entirely sure it's a
good thing.
Note that this also changes plain symlink() to symlink_idempotent() so
that existing symlinks with the right destination are nothing we log
about.
Fixes: #6920
Let's use proc_cmdline_get_key() instead of some strstr() logic to find
a kernel command line key. Using strstr() gets confused by similarly
named keys, and we should reuse our own code as much as we can anyway...
Fixes: #6330
Just brief texts for now, so that we have something
(And in the long rung we should beef all this up, and add a test that
every ID listed in sd-messages.h is accompanied by a matching catalog
entry)
This reverts commit f1e24a259c. Oops.
# systemctl emergency
Failed to start emergency.target: Transaction order is cyclic. See syste...
See system logs and 'systemctl status emergency.target' for details.
# systemctl status emergency.target
● emergency.target - Emergency Mode
Loaded: loaded (/usr/lib/systemd/system/emergency.target; static; vendor preset: disabled)
Active: inactive (dead) since Mon 2017-09-25 10:43:02 BST; 2h 42min ago
Docs: man:systemd.special(7)
systemd[1]: sysinit.target: Found dependency on sysinit.target/stop
sysinit.target: Unable to break cycle starting with sysinit.target/stop
network.target: Found ordering cycle on wpa_supplicant.service/stop
network.target: Found dependency on sysinit.target/stop
network.target: Found dependency on emergency.target/start
network.target: Found dependency on emergency.service/start
network.target: Found dependency on serial-getty@ttyS0.service/stop
network.target: Found dependency on systemd-user-sessions.service/stop
network.target: Found dependency on network.target/stop
network.target: Unable to break cycle starting with network.target/stop
IMO #6509 is ugly enough that we should aim to answer it. But it could
take some time to investigate, so let's re-open the issue as a first step.
Just in case something opened them, let's make sure glibc invalidates
them too.
Thankfully so far no library opened log channels behind our back, at
least as far as I know, hence this is actually a NOP, but let's better
be safe than sorry.
