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TEST-21-DFUZZER: first test session bus, then service bus, finally system bus

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Yu Watanabe
2025-06-19 19:01:57 +09:00
parent 951e313b9a
commit 5e2b606e4e
1 changed files with 21 additions and 22 deletions
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43
test/units/TEST-21-DFUZZER.sh
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@@ -135,7 +135,6 @@ BUS_LIST=(
org.freedesktop.machine1
org.freedesktop.portable1
org.freedesktop.resolve1
org.freedesktop.systemd1
org.freedesktop.timedate1
)
@@ -160,10 +159,6 @@ elif busctl introspect org.freedesktop.network1 / &>/dev/null; then
)
fi
SESSION_BUS_LIST=(
org.freedesktop.systemd1
)
# Maximum payload size generated by dfuzzer (in bytes) - default: 50K
PAYLOAD_MAX=50000
# Tweak the maximum payload size if we're running under sanitizers, since
@@ -172,33 +167,37 @@ if [[ -v ASAN_OPTIONS || -v UBSAN_OPTIONS ]]; then
PAYLOAD_MAX=10000 # 10K
fi
test_systemd() {
systemd-run "$@" --pipe --wait \
-- dfuzzer -b "$PAYLOAD_MAX" -n org.freedesktop.systemd1
# Let's reload the systemd user daemon to test (de)serialization as well
systemctl "$@" daemon-reload
# FIXME: explicitly trigger reexecute until systemd/systemd#27204 is resolved
systemctl "$@" daemon-reexec
}
# Let's first test the session bus before the system one, as it may be in a
# spurious state after fuzzing the system bus or login bus.
echo "Bus: org.freedesktop.systemd1 (session)"
test_systemd --machine 'testuser@.host' --user
# Overmount /var/lib/machines with a size-limited tmpfs, as fuzzing
# the org.freedesktop.machine1 stuff makes quite a mess
mount -t tmpfs -o size=50M tmpfs /var/lib/machines
# Fuzz both the system and the session buses (where applicable)
# Next, test the system service buses, as the services may be in a spurious
# state after fuzzing the system service manager bus.
for bus in "${BUS_LIST[@]}"; do
echo "Bus: $bus (system)"
echo "Bus: $bus"
systemd-run --pipe --wait \
-- dfuzzer -b "$PAYLOAD_MAX" -n "$bus"
# Let's reload the systemd daemon to test (de)serialization as well
systemctl daemon-reload
# FIXME: explicitly trigger reexecute until systemd/systemd#27204 is resolved
systemctl daemon-reexec
done
umount /var/lib/machines
for bus in "${SESSION_BUS_LIST[@]}"; do
echo "Bus: $bus (session)"
systemd-run --machine 'testuser@.host' --user --pipe --wait \
-- dfuzzer -b "$PAYLOAD_MAX" -n "$bus"
# Let's reload the systemd user daemon to test (de)serialization as well
systemctl --machine 'testuser@.host' --user daemon-reload
# FIXME: explicitly trigger reexecute until systemd/systemd#27204 is resolved
systemctl --machine 'testuser@.host' --user daemon-reexec
done
# Finally, test the system bus.
echo "Bus: org.freedesktop.systemd1 (system)"
test_systemd
touch /testok