mirror of
https://github.com/SELinuxProject/selinux
synced 2024-12-12 17:15:00 +00:00
e0ba116803
Do not output CIL log messages while fuzzing, since their amount are huge, e.g. for neverallow or typebounds violations. Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
#include <getopt.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <sepol/cil/cil.h>
|
|
#include <sepol/policydb.h>
|
|
|
|
static void log_handler(__attribute__((unused)) int lvl, __attribute__((unused)) const char *msg) {
|
|
/* be quiet */
|
|
}
|
|
|
|
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
|
|
enum cil_log_level log_level = CIL_ERR;
|
|
struct sepol_policy_file *pf = NULL;
|
|
FILE *dev_null = NULL;
|
|
int target = SEPOL_TARGET_SELINUX;
|
|
int disable_dontaudit = 0;
|
|
int multiple_decls = 0;
|
|
int disable_neverallow = 0;
|
|
int preserve_tunables = 0;
|
|
int policyvers = POLICYDB_VERSION_MAX;
|
|
int mls = -1;
|
|
int attrs_expand_generated = 0;
|
|
struct cil_db *db = NULL;
|
|
sepol_policydb_t *pdb = NULL;
|
|
|
|
cil_set_log_level(log_level);
|
|
cil_set_log_handler(log_handler);
|
|
|
|
cil_db_init(&db);
|
|
cil_set_disable_dontaudit(db, disable_dontaudit);
|
|
cil_set_multiple_decls(db, multiple_decls);
|
|
cil_set_disable_neverallow(db, disable_neverallow);
|
|
cil_set_preserve_tunables(db, preserve_tunables);
|
|
cil_set_mls(db, mls);
|
|
cil_set_target_platform(db, target);
|
|
cil_set_policy_version(db, policyvers);
|
|
cil_set_attrs_expand_generated(db, attrs_expand_generated);
|
|
|
|
if (cil_add_file(db, "fuzz", (const char *)data, size) != SEPOL_OK)
|
|
goto exit;
|
|
|
|
if (cil_compile(db) != SEPOL_OK)
|
|
goto exit;
|
|
|
|
if (cil_build_policydb(db, &pdb) != SEPOL_OK)
|
|
goto exit;
|
|
|
|
if (sepol_policydb_optimize(pdb) != SEPOL_OK)
|
|
goto exit;
|
|
|
|
dev_null = fopen("/dev/null", "w");
|
|
if (dev_null == NULL)
|
|
goto exit;
|
|
|
|
if (sepol_policy_file_create(&pf) != 0)
|
|
goto exit;
|
|
|
|
sepol_policy_file_set_fp(pf, dev_null);
|
|
|
|
if (sepol_policydb_write(pdb, pf) != 0)
|
|
goto exit;
|
|
exit:
|
|
if (dev_null != NULL)
|
|
fclose(dev_null);
|
|
|
|
cil_db_destroy(&db);
|
|
sepol_policydb_free(pdb);
|
|
sepol_policy_file_free(pf);
|
|
return 0;
|
|
}
|