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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/journal-remote/fuzz-journal-remote.c | |
parent | Initial commit. (diff) | |
download | systemd-b750101eb236130cf056c675997decbac904cc49.tar.xz systemd-b750101eb236130cf056c675997decbac904cc49.zip |
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/journal-remote/fuzz-journal-remote.c')
-rw-r--r-- | src/journal-remote/fuzz-journal-remote.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/journal-remote/fuzz-journal-remote.c b/src/journal-remote/fuzz-journal-remote.c new file mode 100644 index 0000000..38940cc --- /dev/null +++ b/src/journal-remote/fuzz-journal-remote.c @@ -0,0 +1,96 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "fuzz.h" + +#include <sys/mman.h> + +#include "sd-journal.h" + +#include "env-util.h" +#include "fd-util.h" +#include "fileio.h" +#include "fs-util.h" +#include "journal-remote.h" +#include "logs-show.h" +#include "memfd-util.h" +#include "path-util.h" +#include "rm-rf.h" +#include "strv.h" +#include "tmpfile-util.h" + +int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { + _cleanup_close_ int fdin_close = -1, fdout = -1; + _cleanup_(rm_rf_physical_and_freep) char *tmp = NULL; + _cleanup_(unlink_and_freep) char *name = NULL; + _cleanup_(sd_journal_closep) sd_journal *j = NULL; + _cleanup_(journal_remote_server_destroy) RemoteServer s = {}; + void *mem; + int fdin, r; + + if (outside_size_range(size, 3, 65536)) + return 0; + + if (!getenv("SYSTEMD_LOG_LEVEL")) + log_set_max_level(LOG_ERR); + + assert_se(mkdtemp_malloc("/tmp/fuzz-journal-remote-XXXXXX", &tmp) >= 0); + assert_se(name = path_join(tmp, "fuzz-journal-remote.XXXXXX.journal")); + + fdin = fdin_close = memfd_new_and_map("fuzz-journal-remote", size, &mem); + if (fdin < 0) + return log_error_errno(fdin, "memfd_new_and_map() failed: %m"); + + memcpy(mem, data, size); + assert_se(munmap(mem, size) == 0); + + fdout = mkostemps(name, STRLEN(".journal"), O_CLOEXEC); + if (fdout < 0) + return log_error_errno(errno, "mkostemps() failed: %m"); + + /* In */ + + r = journal_remote_server_init(&s, name, JOURNAL_WRITE_SPLIT_NONE, 0); + if (r < 0) { + assert_se(IN_SET(r, -ENOMEM, -EMFILE, -ENFILE)); + return r; + } + + r = journal_remote_add_source(&s, fdin, (char*) "fuzz-data", false); + if (r < 0) + return r; + TAKE_FD(fdin_close); + assert(r > 0); + + while (s.active) + assert_se(journal_remote_handle_raw_source(NULL, fdin, 0, &s) >= 0); + + assert_se(close(fdin) < 0 && errno == EBADF); /* Check that the fd is closed already */ + + /* Out */ + + r = sd_journal_open_files(&j, (const char**) STRV_MAKE(name), 0); + if (r < 0) { + log_error_errno(r, "sd_journal_open_files([\"%s\"]) failed: %m", name); + assert_se(IN_SET(r, -ENOMEM, -EMFILE, -ENFILE, -ENODATA)); + return r; + } + + _cleanup_fclose_ FILE *dev_null = NULL; + if (getenv_bool("SYSTEMD_FUZZ_OUTPUT") <= 0) { + dev_null = fopen("/dev/null", "we"); + if (!dev_null) + return log_error_errno(errno, "fopen(\"/dev/null\") failed: %m"); + } + + for (OutputMode mode = 0; mode < _OUTPUT_MODE_MAX; mode++) { + if (!dev_null) + log_info("/* %s */", output_mode_to_string(mode)); + r = show_journal(dev_null ?: stdout, j, mode, 0, 0, -1, 0, NULL); + assert_se(r >= 0); + + r = sd_journal_seek_head(j); + assert_se(r >= 0); + } + + return 0; +} |