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systemd/test/units/testsuite-04.journal-append.sh
Frantisek Sumsal 29bdeb5cb3 test: append to corrupted journals
Introduce a manual test tool that creates a journal, corrupts it by
flipping bits at given offsets, and then attempts to write to the journal.
In ideal case we should handle this gracefully without any crash or
memory corruption.
2023-07-06 22:41:27 +02:00

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#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -eux
set -o pipefail
# test-journal-append corrupts the journal file by flipping a bit at a given offset and
# following it by a write to check if we handle appending messages to corrupted journals
# gracefully
TEST_JOURNAL_APPEND=/usr/lib/systemd/tests/unit-tests/manual/test-journal-append
[[ -x "$TEST_JOURNAL_APPEND" ]]
# Corrupt the first ~1024 bytes, this should be pretty quick
"$TEST_JOURNAL_APPEND" --sequential --start-offset=0 --iterations=350 --iteration-step=3
# Skip most of the test when running without acceleration, as it's excruciatingly slow
# (this shouldn't be an issue, as it should run in nspawn as well)
if ! [[ "$(systemd-detect-virt -v)" == "qemu" ]]; then
# Corrupt the beginning of every 1K block between 1K - 32K
for ((i = 1024; i <= (32 * 1024); i += 1024)); do
"$TEST_JOURNAL_APPEND" --sequential --start-offset="$i" --iterations=5 --iteration-step=13
done
# Corrupt the beginning of every 16K block between 32K - 128K
for ((i = (32 * 1024); i <= (256 * 1024); i += (16 * 1024))); do
"$TEST_JOURNAL_APPEND" --sequential --start-offset="$i" --iterations=5 --iteration-step=13
done
# Corrupt the beginning of every 128K block between 128K - 1M
for ((i = (128 * 1024); i <= (1 * 1024 * 1024); i += (128 * 1024))); do
"$TEST_JOURNAL_APPEND" --sequential --start-offset="$i" --iterations=5 --iteration-step=13
done
# And finally the beginning of every 1M block between 1M and 8M
for ((i = (1 * 1024 * 1024); i < (8 * 1024 * 1024); i += (1 * 1024 * 1024))); do
"$TEST_JOURNAL_APPEND" --sequential --start-offset="$i" --iterations=5 --iteration-step=13
done
if [[ "$(nproc)" -ge 2 ]]; then
# Try to corrupt random bytes throughout the journal
"$TEST_JOURNAL_APPEND" --iterations=25
fi
else
"$TEST_JOURNAL_APPEND" --iterations=10
fi