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|
#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -ex
set -o pipefail
systemd-analyze log-level debug
export SYSTEMD_LOG_LEVEL=debug
if [ -f /run/testsuite82.touch3 ]; then
echo "This is the fourth boot!"
systemd-notify --status="Fourth Boot"
rm /run/testsuite82.touch3
mount
rmdir /original-root /run/nextroot
# Check that the fdstore entry still exists
test "$LISTEN_FDS" -eq 3
read -r x <&5
test "$x" = "oinkoink"
# Check that the surviving service is still around
test "$(systemctl show -P ActiveState testsuite-82-survive.service)" = "active"
test "$(systemctl show -P ActiveState testsuite-82-nosurvive.service)" != "active"
# Take out the big guns now, and kill the service via SIGKILL (SIGTERM is blocked after all, see below)
systemctl --signal=KILL kill testsuite-82-survive.service
systemctl stop testsuite-82-survive.service
# All succeeded, exit cleanly now
elif [ -f /run/testsuite82.touch2 ]; then
echo "This is the third boot!"
systemd-notify --status="Third Boot"
rm /run/testsuite82.touch2
# Check that the fdstore entry still exists
test "$LISTEN_FDS" -eq 2
read -r x <&4
test "$x" = "miaumiau"
# Upload another entry
T="/dev/shm/fdstore.$RANDOM"
echo "oinkoink" >"$T"
systemd-notify --fd=3 --pid=parent 3<"$T"
rm "$T"
# Check that the surviving service is still around
test "$(systemctl show -P ActiveState testsuite-82-survive.service)" = "active"
test "$(systemctl show -P ActiveState testsuite-82-nosurvive.service)" != "active"
# Test that we really are in the new overlayfs root fs
read -r x </lower
test "$x" = "miep"
# Switch back to the original root, away from the overlayfs
mount --bind /original-root /run/nextroot
mount
# Now issue the soft reboot. We should be right back soon.
touch /run/testsuite82.touch3
systemctl --no-block soft-reboot
# Now block until the soft-boot killing spree kills us
exec sleep infinity
elif [ -f /run/testsuite82.touch ]; then
echo "This is the second boot!"
systemd-notify --status="Second Boot"
# Clean up what we created earlier
rm /run/testsuite82.touch
# Check that the fdstore entry still exists
test "$LISTEN_FDS" -eq 1
read -r x <&3
test "$x" = "wuffwuff"
# Upload another entry
T="/dev/shm/fdstore.$RANDOM"
echo "miaumiau" >"$T"
systemd-notify --fd=3 --pid=parent 3<"$T"
rm "$T"
# Check that the surviving service is still around
test "$(systemctl show -P ActiveState testsuite-82-survive.service)" = "active"
test "$(systemctl show -P ActiveState testsuite-82-nosurvive.service)" != "active"
# This time we test the /run/nextroot/ root switching logic. (We synthesize a new rootfs from the old via overlayfs)
mkdir -p /run/nextroot /tmp/nextroot-lower /original-root
mount -t tmpfs tmpfs /tmp/nextroot-lower
echo miep >/tmp/nextroot-lower/lower
mount -t overlay nextroot /run/nextroot -o lowerdir=/:/tmp/nextroot-lower,ro
# Bind our current root into the target so that we later can return to it
mount --bind / /run/nextroot/original-root
# Now issue the soft reboot. We should be right back soon.
touch /run/testsuite82.touch2
systemctl --no-block soft-reboot
# Now block until the soft-boot killing spree kills us
exec sleep infinity
else
# This is the first boot
systemd-notify --status="First Boot"
# Let's upload an fd to the fdstore, so that we can verify fdstore passing works correctly
T="/dev/shm/fdstore.$RANDOM"
echo "wuffwuff" >"$T"
systemd-notify --fd=3 --pid=parent 3<"$T"
rm "$T"
# Create a script that can survive the soft reboot by ignoring SIGTERM (we
# do this instead of the argv[0][0] = '@' thing because that's so hard to
# do from a shell
T="/dev/shm/survive-$RANDOM.sh"
cat >$T <<EOF
#!/bin/bash
trap "" TERM
systemd-notify --ready
rm "$T"
exec sleep infinity
EOF
chmod +x "$T"
# This sets DefaultDependencies=no so that it remains running until the
# very end, and IgnoreOnIsolate=yes so that it isn't stopped via the
# "testsuite.target" isolation we do on next boot
systemd-run -p Type=notify -p DefaultDependencies=no -p IgnoreOnIsolate=yes --unit=testsuite-82-survive.service "$T"
systemd-run -p Type=exec -p DefaultDependencies=no -p IgnoreOnIsolate=yes --unit=testsuite-82-nosurvive.service sleep infinity
# Now issue the soft reboot. We should be right back soon.
touch /run/testsuite82.touch
systemctl --no-block soft-reboot
# Now block until the soft-boot killing spree kills us
exec sleep infinity
fi
systemd-analyze log-level info
echo OK >/testok
systemctl --no-block poweroff
exit 0
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