187 lines
6.0 KiB
Diff
187 lines
6.0 KiB
Diff
|
From 25338c37915521876c84bca196de50d73c3c17ea Mon Sep 17 00:00:00 2001
|
||
|
From: Frantisek Sumsal <frantisek@sumsal.cz>
|
||
|
Date: Mon, 13 Dec 2021 20:50:28 +0100
|
||
|
Subject: [PATCH] test: fuzz our dbus interfaces with dfuzzer
|
||
|
|
||
|
(cherry picked from commit 354b3364aa63620a0f732bb8a6fe9332a4f550e4)
|
||
|
|
||
|
Related: #2087652
|
||
|
---
|
||
|
test/TEST-21-DFUZZER/Makefile | 1 +
|
||
|
test/TEST-21-DFUZZER/test.sh | 24 +++++++++
|
||
|
test/test-functions | 1 +
|
||
|
test/units/testsuite-21.service | 10 ++++
|
||
|
test/units/testsuite-21.sh | 94 +++++++++++++++++++++++++++++++++
|
||
|
5 files changed, 130 insertions(+)
|
||
|
create mode 120000 test/TEST-21-DFUZZER/Makefile
|
||
|
create mode 100755 test/TEST-21-DFUZZER/test.sh
|
||
|
create mode 100644 test/units/testsuite-21.service
|
||
|
create mode 100755 test/units/testsuite-21.sh
|
||
|
|
||
|
diff --git a/test/TEST-21-DFUZZER/Makefile b/test/TEST-21-DFUZZER/Makefile
|
||
|
new file mode 120000
|
||
|
index 0000000000..e9f93b1104
|
||
|
--- /dev/null
|
||
|
+++ b/test/TEST-21-DFUZZER/Makefile
|
||
|
@@ -0,0 +1 @@
|
||
|
+../TEST-01-BASIC/Makefile
|
||
|
\ No newline at end of file
|
||
|
diff --git a/test/TEST-21-DFUZZER/test.sh b/test/TEST-21-DFUZZER/test.sh
|
||
|
new file mode 100755
|
||
|
index 0000000000..ecc04e368c
|
||
|
--- /dev/null
|
||
|
+++ b/test/TEST-21-DFUZZER/test.sh
|
||
|
@@ -0,0 +1,24 @@
|
||
|
+#!/usr/bin/env bash
|
||
|
+# SPDX-License-Identifier: LGPL-2.1-or-later
|
||
|
+set -e
|
||
|
+
|
||
|
+TEST_DESCRIPTION="Fuzz our D-Bus interfaces with dfuzzer"
|
||
|
+TEST_NO_NSPAWN=1
|
||
|
+TEST_SUPPORTING_SERVICES_SHOULD_BE_MASKED=0
|
||
|
+QEMU_TIMEOUT="${QEMU_TIMEOUT:-1800}"
|
||
|
+
|
||
|
+# shellcheck source=test/test-functions
|
||
|
+. "${TEST_BASE_DIR:?}/test-functions"
|
||
|
+
|
||
|
+command -v dfuzzer >/dev/null || exit 0
|
||
|
+
|
||
|
+test_append_files() {
|
||
|
+ local workspace="${1:?}"
|
||
|
+
|
||
|
+ image_install dfuzzer /etc/dfuzzer.conf
|
||
|
+
|
||
|
+ # Enable all systemd-related services, including the D-Bus ones
|
||
|
+ "$SYSTEMCTL" --root="${workspace:?}" preset-all
|
||
|
+}
|
||
|
+
|
||
|
+do_test "$@"
|
||
|
diff --git a/test/test-functions b/test/test-functions
|
||
|
index 44f465c914..079a7249e4 100644
|
||
|
--- a/test/test-functions
|
||
|
+++ b/test/test-functions
|
||
|
@@ -99,6 +99,7 @@ SYSTEMD_JOURNAL_REMOTE="${SYSTEMD_JOURNAL_REMOTE:-$(command -v "$BUILD_DIR/syste
|
||
|
SYSTEMD="${SYSTEMD:-$(command -v "$BUILD_DIR/systemd" || command -v "$ROOTLIBDIR/systemd")}"
|
||
|
SYSTEMD_NSPAWN="${SYSTEMD_NSPAWN:-$(command -v "$BUILD_DIR/systemd-nspawn" || command -v systemd-nspawn)}"
|
||
|
JOURNALCTL="${JOURNALCTL:-$(command -v "$BUILD_DIR/journalctl" || command -v journalctl)}"
|
||
|
+SYSTEMCTL="${SYSTEMCTL:-$(command -v "$BUILD_DIR/systemctl" || command -v systemctl)}"
|
||
|
|
||
|
TESTFILE="${BASH_SOURCE[1]}"
|
||
|
if [ -z "$TESTFILE" ]; then
|
||
|
diff --git a/test/units/testsuite-21.service b/test/units/testsuite-21.service
|
||
|
new file mode 100644
|
||
|
index 0000000000..a5f77d07b4
|
||
|
--- /dev/null
|
||
|
+++ b/test/units/testsuite-21.service
|
||
|
@@ -0,0 +1,10 @@
|
||
|
+# SPDX-License-Identifier: LGPL-2.1-or-later
|
||
|
+[Unit]
|
||
|
+Description=Fuzz our D-Bus interfaces with dfuzzer
|
||
|
+After=dbus.service multi-user.target
|
||
|
+Wants=dbus.service multi-user.target
|
||
|
+
|
||
|
+[Service]
|
||
|
+ExecStartPre=rm -f /failed /skipped /testok
|
||
|
+ExecStart=/usr/lib/systemd/tests/testdata/units/%N.sh
|
||
|
+Type=oneshot
|
||
|
diff --git a/test/units/testsuite-21.sh b/test/units/testsuite-21.sh
|
||
|
new file mode 100755
|
||
|
index 0000000000..43b5fb6f22
|
||
|
--- /dev/null
|
||
|
+++ b/test/units/testsuite-21.sh
|
||
|
@@ -0,0 +1,94 @@
|
||
|
+#!/usr/bin/env bash
|
||
|
+# SPDX-License-Identifier: LGPL-2.1-or-later
|
||
|
+set -eux
|
||
|
+set -o pipefail
|
||
|
+
|
||
|
+# Save the end.service state before we start fuzzing, as it might get changed
|
||
|
+# on the fly by one of the fuzzers
|
||
|
+systemctl list-jobs | grep -F 'end.service' && SHUTDOWN_AT_EXIT=1 || SHUTDOWN_AT_EXIT=0
|
||
|
+
|
||
|
+at_exit() {
|
||
|
+ # "Safety net" - check for any coredumps which might have not caused dfuzzer
|
||
|
+ # to stop & return an error (we need to do this now before truncating the
|
||
|
+ # journal)
|
||
|
+ # TODO: check fo ASan/UBSan errors
|
||
|
+ local found_cd=0
|
||
|
+ while read -r exe; do
|
||
|
+ coredumctl info "$exe"
|
||
|
+ found_cd=1
|
||
|
+ done < <(coredumpctl -F COREDUMP_EXE | sort -u)
|
||
|
+ [[ $found_cd -eq 0 ]] || exit 1
|
||
|
+
|
||
|
+ # We have to call the end.service explicitly even if it's specified on
|
||
|
+ # the kernel cmdline via systemd.wants=end.service, since dfuzzer calls
|
||
|
+ # org.freedesktop.systemd1.Manager.ClearJobs() which drops the service
|
||
|
+ # from the queue
|
||
|
+ [[ $SHUTDOWN_AT_EXIT -ne 0 ]] && systemctl start --job-mode=flush end.service
|
||
|
+}
|
||
|
+
|
||
|
+trap at_exit EXIT
|
||
|
+
|
||
|
+systemctl log-level info
|
||
|
+
|
||
|
+# TODO
|
||
|
+# * check for possibly newly introduced buses?
|
||
|
+BUS_LIST=(
|
||
|
+ org.freedesktop.home1
|
||
|
+ org.freedesktop.hostname1
|
||
|
+ org.freedesktop.import1
|
||
|
+ org.freedesktop.locale1
|
||
|
+ org.freedesktop.login1
|
||
|
+ org.freedesktop.machine1
|
||
|
+ org.freedesktop.network1
|
||
|
+ org.freedesktop.portable1
|
||
|
+ org.freedesktop.resolve1
|
||
|
+ org.freedesktop.systemd1
|
||
|
+ org.freedesktop.timedate1
|
||
|
+ org.freedesktop.timesync1
|
||
|
+)
|
||
|
+
|
||
|
+# systemd-oomd requires PSI
|
||
|
+if tail -n +1 /proc/pressure/{cpu,io,memory}; then
|
||
|
+ BUS_LIST+=(org.freedesktop.oom1)
|
||
|
+fi
|
||
|
+
|
||
|
+SESSION_BUS_LIST=(
|
||
|
+ org.freedesktop.systemd1
|
||
|
+)
|
||
|
+
|
||
|
+# Maximum payload size generated by dfuzzer (in bytes) - default: 50K
|
||
|
+PAYLOAD_MAX=50000
|
||
|
+# Tweak the maximum payload size if we're running under sanitizers, since
|
||
|
+# with larger payloads we start hitting reply timeouts
|
||
|
+if [[ -v ASAN_OPTIONS || -v UBSAN_OPTIONS ]]; then
|
||
|
+ PAYLOAD_MAX=10000 # 10K
|
||
|
+fi
|
||
|
+
|
||
|
+# Overmount /var/lib/machines with a size-limited tmpfs, as fuzzing
|
||
|
+# the org.freedesktop.machine1 stuff makes quite a mess
|
||
|
+mount -t tmpfs -o size=50M tmpfs /var/lib/machines
|
||
|
+
|
||
|
+# Fuzz both the system and the session buses (where applicable)
|
||
|
+for bus in "${BUS_LIST[@]}"; do
|
||
|
+ echo "Bus: $bus (system)"
|
||
|
+ systemd-run --pipe --wait \
|
||
|
+ -- dfuzzer -v -b "$PAYLOAD_MAX" -n "$bus"
|
||
|
+
|
||
|
+ # Let's reload the systemd daemon to test (de)serialization as well
|
||
|
+ systemctl daemon-reload
|
||
|
+done
|
||
|
+
|
||
|
+umount /var/lib/machines
|
||
|
+
|
||
|
+for bus in "${SESSION_BUS_LIST[@]}"; do
|
||
|
+ echo "Bus: $bus (session)"
|
||
|
+ systemd-run --machine 'testuser@.host' --user --pipe --wait \
|
||
|
+ -- dfuzzer -v -b "$PAYLOAD_MAX" -n "$bus"
|
||
|
+
|
||
|
+ # Let's reload the systemd user daemon to test (de)serialization as well
|
||
|
+ systemctl --machine 'testuser@.host' --user daemon-reload
|
||
|
+done
|
||
|
+
|
||
|
+echo OK >/testok
|
||
|
+
|
||
|
+exit 0
|