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Let's bump the kernel baseline a bit to 4.3 and thus require ambient
caps.
This allows us to remove support for a variety of special casing, most
importantly the ExecStart=!! hack.
This PR introduces varlink's alternatives to the following DBus methods:
- MapFromMachineUser
- MapToMachineUser
- MapFromMachineGroup
- MapToMachineGroup
This commit add the `-i` option to `udevadm trigger` that force it to
match parent devices even if they're excluded from filters.
The rationale is that some embedded devices have a huge number of
platform devices ( ~ 4k for MX8 ) they are there because they're defined
in the device tree but there isn't any action or udev rules associated
with them.
So at boot a significant time is spend triggering and processing rules
for devices that don't produce any effect and we would like to filter
them by calling:
```
udevadm trigger --type=device --action=add -s block -s tty
```
instead of the normal
```
udevadm trigger --type=device --action=add
```
so we can use filter to filter out only subsystems for we we know that
we have rules in place that do something useful.
On the other side action / rules are not triggered until the parent is
triggered ( which is part of another subsystem), so the additional option
will allows udev to complete the coldplug with only the devices we care.
Example on iMX8:
.Without the new option
```
root@dev:~# udevadm trigger --dry-run -s block --action=add -v
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0boot0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0boot1
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p1
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p2
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p3
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p4
```
.With the new option
```
root@dev:~# udevadm trigger --dry-run -i -s block --action=add -v
/sys/devices/platform
/sys/devices/platform/bus@5b000000
/sys/devices/platform/bus@5b000000/5b010000.mmc
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0boot0
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0boot1
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p1
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p2
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p3
/sys/devices/platform/bus@5b000000/5b010000.mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p4
```
Boot time reduction with this is place is ~ 1 second.
We never know, maybe there's some spurious POLLIN and read() will fail
with EAGAIN even though we saw POLLIN. Handle that.
(this can happen if we area not the only process reading from the tty,
or in case of hups and such).
Fixes: #35499
Previously, when an OSC sequence is terminated with \x1b\x5c, configured
OSC sequence would be inserted between the two characters, rather
than after the two.
Fixes a bug introduced by d848a9499830c530e804a41ffd8aa1bc942fa735.
Fixes#35631.
Right now, the sending of wall messages on reboot/shutdown/etc can be
controlled via DBus properties. This patch adds support for changing the
default via the logind.conf file as well.
Note that the DBus setting is lost if logind is restarted or reloaded,
but it was already the case before this patch that the setting is lost
upon restart.
Let's implement our own protocols, and raise the log level to debug if
DEBUG_INVOCATION=1 is set.
Follow-up for: 7d8bbfbe0852ec89590d1dc5e28afc95d6d44fa1
Let's implement our own protocols, and raise the log level to debug if
DEBUG_INVOCATION=1 is set.
Follow-up for: 7d8bbfbe0852ec89590d1dc5e28afc95d6d44fa1
We had this elaborate scheme with an array of strings instead of a bunch of a
normal string fields. If there were hundreds of those strings, this would make
sense. But we had just five and one was actually a bit different because it had
a fallback, so overall, the code is easier to read when normal fields are used.
The fallback was implemented in the accessor function, now it's actually
implemented in the place where it's used.
While at it, rename the variables so that they match the config keys for
legibility.
We printed:
systemd-tmpfiles[705]: /usr/lib/tmpfiles.d/20-systemd-shell-extra.conf:10: Unknown modifiers in command 'L$'.
systemd-tmpfiles[705]: /usr/lib/tmpfiles.d/systemd-network.conf:10: Unknown modifiers in command 'd$'.
systemd-tmpfiles[705]: /usr/lib/tmpfiles.d/systemd-network.conf:11: Unknown modifiers in command 'd$'.
...
There's a lot of additional characters here make the message harder to parse. We know
that the command is a word without any whitespace, so quoting isn't really necessary.
Change this to:
... unknown modifiers in command: L$
- Let's check if the minimum size we got is larger than the configured
maximum partition size and fail early if it is.
- Let's make sure for writable filesystems that we make the minimal
filesystem at least as large as the minimum partition size, to allow
creating minimal filesystems with a minimum size.
This adds back support for unprivileged btrfs subvolumes which
can be merged once btrfs-progs 6.12 is out.
This reverts commit 4d9ccdc9aec5728a6bfc66879420b2af25817e03.
To be able to run systemd in a Type=notify transient unit, the notify
socket can't be bind mounted to /run/systemd/notify as systemd in the
transient unit wants to use that as its own notify socket which
conflicts with systemd on the host.
Instead, for sandboxed units, let's bind mount the notify socket to
/run/host/notify as documented in the container interface. Since we
don't guarantee a stable location for the notify socket and insist users
use $NOTIFY_SOCKET to get its path, this is safe to do.
