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systemd/test/TEST-20-MAINPIDGAMES/testsuite.sh
Zbigniew Jędrzejewski-Szmek cc5549ca12 scripts: use 4 space indentation
We had all kinds of indentation: 2 sp, 3 sp, 4 sp, 8 sp, and mixed.
4 sp was the most common, in particular the majority of scripts under test/
used that. Let's standarize on 4 sp, because many commandlines are long and
there's a lot of nesting, and with 8sp indentation less stuff fits. 4 sp
also seems to be the default indentation, so this will make it less likely
that people will mess up if they don't load the editor config. (I think people
often use vi, and vi has no support to load project-wide configuration
automatically. We distribute a .vimrc file, but it is not loaded by default,
and even the instructions in it seem to discourage its use for security
reasons.)

Also remove the few vim config lines that were left. We should either have them
on all files, or none.

Also remove some strange stuff like '#!/bin/env bash', yikes.
2019-04-12 08:30:31 +02:00

140 lines
4.3 KiB
Bash
Executable File

#!/bin/bash
set -ex
set -o pipefail
systemd-analyze log-level debug
systemd-analyze log-target console
test `systemctl show -p MainPID --value testsuite.service` -eq $$
# Start a test process inside of our own cgroup
sleep infinity &
INTERNALPID=$!
disown
# Start a test process outside of our own cgroup
systemd-run -p DynamicUser=1 --unit=sleep.service /bin/sleep infinity
EXTERNALPID=`systemctl show -p MainPID --value sleep.service`
# Update our own main PID to the external test PID, this should work
systemd-notify MAINPID=$EXTERNALPID
test `systemctl show -p MainPID --value testsuite.service` -eq $EXTERNALPID
# Update our own main PID to the internal test PID, this should work, too
systemd-notify MAINPID=$INTERNALPID
test `systemctl show -p MainPID --value testsuite.service` -eq $INTERNALPID
# Update it back to our own PID, this should also work
systemd-notify MAINPID=$$
test `systemctl show -p MainPID --value testsuite.service` -eq $$
# Try to set it to PID 1, which it should ignore, because that's the manager
systemd-notify MAINPID=1
test `systemctl show -p MainPID --value testsuite.service` -eq $$
# Try to set it to PID 0, which is invalid and should be ignored
systemd-notify MAINPID=0
test `systemctl show -p MainPID --value testsuite.service` -eq $$
# Try to set it to a valid but non-existing PID, which should be ignored. (Note
# that we set the PID to a value well above any known /proc/sys/kernel/pid_max,
# which means we can be pretty sure it doesn't exist by coincidence)
systemd-notify MAINPID=1073741824
test `systemctl show -p MainPID --value testsuite.service` -eq $$
# Change it again to the external PID, without priviliges this time. This should be ignored, because the PID is from outside of our cgroup and we lack privileges.
systemd-notify --uid=1000 MAINPID=$EXTERNALPID
test `systemctl show -p MainPID --value testsuite.service` -eq $$
# Change it again to the internal PID, without priviliges this time. This should work, as the process is on our cgroup, and that's enough even if we lack privileges.
systemd-notify --uid=1000 MAINPID=$INTERNALPID
test `systemctl show -p MainPID --value testsuite.service` -eq $INTERNALPID
# Update it back to our own PID, this should also work
systemd-notify --uid=1000 MAINPID=$$
test `systemctl show -p MainPID --value testsuite.service` -eq $$
cat >/tmp/mainpid.sh <<EOF
#!/bin/bash
set -eux
set -o pipefail
# Create a number of children, and make one the main one
sleep infinity &
disown
sleep infinity &
MAINPID=\$!
disown
sleep infinity &
disown
echo \$MAINPID > /run/mainpidsh/pid
EOF
chmod +x /tmp/mainpid.sh
systemd-run --unit=mainpidsh.service -p StandardOutput=tty -p StandardError=tty -p Type=forking -p RuntimeDirectory=mainpidsh -p PIDFile=/run/mainpidsh/pid /tmp/mainpid.sh
test `systemctl show -p MainPID --value mainpidsh.service` -eq `cat /run/mainpidsh/pid`
cat >/tmp/mainpid2.sh <<EOF
#!/bin/bash
set -eux
set -o pipefail
# Create a number of children, and make one the main one
sleep infinity &
disown
sleep infinity &
MAINPID=\$!
disown
sleep infinity &
disown
echo \$MAINPID > /run/mainpidsh2/pid
chown 1001:1001 /run/mainpidsh2/pid
EOF
chmod +x /tmp/mainpid2.sh
systemd-run --unit=mainpidsh2.service -p StandardOutput=tty -p StandardError=tty -p Type=forking -p RuntimeDirectory=mainpidsh2 -p PIDFile=/run/mainpidsh2/pid /tmp/mainpid2.sh
test `systemctl show -p MainPID --value mainpidsh2.service` -eq `cat /run/mainpidsh2/pid`
cat >/dev/shm/mainpid3.sh <<EOF
#!/bin/bash
set -eux
set -o pipefail
sleep infinity &
disown
sleep infinity &
disown
sleep infinity &
disown
# Let's try to play games, and link up a privileged PID file
ln -s ../mainpidsh/pid /run/mainpidsh3/pid
# Quick assertion that the link isn't dead
test -f /run/mainpidsh3/pid
EOF
chmod 755 /dev/shm/mainpid3.sh
# This has to fail, as we shouldn't accept the dangerous PID file, and then inotify-wait on it to be corrected which we never do
! systemd-run --unit=mainpidsh3.service -p StandardOutput=tty -p StandardError=tty -p Type=forking -p RuntimeDirectory=mainpidsh3 -p PIDFile=/run/mainpidsh3/pid -p DynamicUser=1 -p TimeoutStartSec=2s /dev/shm/mainpid3.sh
# Test that this failed due to timeout, and not some other error
test `systemctl show -p Result --value mainpidsh3.service` = timeout
systemd-analyze log-level info
echo OK > /testok
exit 0