Since f833df3 we now actually use the seccomp rules defined in portable
profiles. However, the default one is too restrictive for sanitizers, as
it blocks certain syscall required by LSan. Mitigate this by using the
'trusted' profile when running TEST-29-PORTABLE under sanitizers.
This adds a high level test verifying that syscall filtering in
combination with a simple architecture filter for the "native"
architecture works fine.
Currently there does not exist a way to specify a path relative to which
all binaries executed by Exec should be found. The only way is to
specify the absolute path.
This change implements the functionality to specify a path relative to which
binaries executed by Exec*= can be found.
Closes#6308
Compared to PID1 where systemd-oomd has to be the client to PID1
because PID1 is a more privileged process than systemd-oomd, systemd-oomd
is the more privileged process compared to a user manager so we have
user managers be the client whereas systemd-oomd is now the server.
The same varlink protocol is used between user managers and systemd-oomd
to deliver ManagedOOM property updates. systemd-oomd now sets up a varlink
server that user managers connect to to send ManagedOOM property updates.
We also add extra validation to make sure that non-root senders don't
send updates for cgroups they don't own.
The integration test was extended to repeat the chill/bloat test using
a user manager instead of PID1.
Unfortunately, when checking the return/exit code using &&, ||, if,
while, etc., `set -e` is disabled for all nested functions as well,
which leads to incorrectly ignored errors, *sigh*.
Example:
```
set -eu
set -o pipefail
task() {
echo "task init"
echo "this should fail"
false
nonexistentcommand
echo "task end (we shouldn't be here)"
}
if ! task; then
echo >&2 "The task failed"
exit 1
else
echo "The task passed"
fi
```
```
$ bash test.sh
task init
this should fail
test.sh: line 10: nonexistentcommand: command not found
task end (we shouldn't be here)
The task passed
$ echo $?
0
```
But without the `if`, everything works "as expected":
```
set -eu
set -o pipefail
task() {
echo "task init"
echo "this should fail"
false
nonexistentcommand
echo "task end (we shouldn't be here)"
}
task
```
```
$ bash test.sh
task init
this should fail
$ echo $?
1
```
Wonderful.
Frantisek Sumsal
Benjamin Berg
Yu Watanabe
Anita Zhang
Lennart Poettering
Albert Brox
alexlzhu
Peter Morrow
Luca Boccassi
Franck Bui
Daan De Meyer