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author | Frantisek Sumsal <frantisek@sumsal.cz> | 2023-05-01 22:41:52 +0200 |
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committer | Frantisek Sumsal <frantisek@sumsal.cz> | 2023-05-03 10:09:53 +0200 |
commit | 24e6759cbcd58dfd779f70fa3cf45227dcf8798f (patch) | |
tree | 7056af2b470b6f032eee154b779b048e11c1e9a1 /src/core/fuzz-manager-serialize.c | |
parent | 5c519a56f5caf73c5d418563af939974b0af43be (diff) | |
download | systemd-24e6759cbcd58dfd779f70fa3cf45227dcf8798f.tar.gz |
test: add a simple fuzzer for manager serialization
Diffstat (limited to 'src/core/fuzz-manager-serialize.c')
-rw-r--r-- | src/core/fuzz-manager-serialize.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/core/fuzz-manager-serialize.c b/src/core/fuzz-manager-serialize.c new file mode 100644 index 0000000000..04560341da --- /dev/null +++ b/src/core/fuzz-manager-serialize.c @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include <stdio.h> + +#include "alloc-util.h" +#include "fd-util.h" +#include "fuzz.h" +#include "manager-serialize.h" +#include "manager.h" +#include "service.h" + +int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { + _cleanup_(manager_freep) Manager *m = NULL; + _cleanup_fclose_ FILE *f = NULL, *null = NULL; + _cleanup_fdset_free_ FDSet *fdset = NULL; + + /* We don't want to fill the logs with messages about parse errors. + * Disable most logging if not running standalone. */ + if (!getenv("SYSTEMD_LOG_LEVEL")) { + log_set_max_level(LOG_CRIT); + log_set_target(LOG_TARGET_NULL); + } + + assert_se(manager_new(RUNTIME_SCOPE_SYSTEM, MANAGER_TEST_RUN_BASIC, &m) >= 0); + /* Set log overrides as well to make it harder for a serialization file + * to switch log levels/targets during fuzzing */ + manager_override_log_level(m, log_get_max_level()); + manager_override_log_target(m, log_get_target()); + assert_se(null = fopen("/dev/null", "we")); + assert_se(fdset = fdset_new()); + assert_se(f = data_to_file(data, size)); + + (void) manager_deserialize(m, f, fdset); + (void) manager_serialize(m, null, fdset, true); + (void) manager_serialize(m, null, fdset, false); + + return 0; +} |