1 #include <sepol/debug.h>
2 #include <sepol/kernel_to_cil.h>
3 #include <sepol/kernel_to_conf.h>
4 #include <sepol/policydb/policydb.h>
5
6 extern int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
7
write_binary_policy(policydb_t * p,FILE * outfp)8 static int write_binary_policy(policydb_t *p, FILE *outfp)
9 {
10 struct policy_file pf;
11
12 policy_file_init(&pf);
13 pf.type = PF_USE_STDIO;
14 pf.fp = outfp;
15 return policydb_write(p, &pf);
16 }
17
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)18 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
19 {
20 policydb_t policydb = {};
21 sidtab_t sidtab = {};
22 struct policy_file pf;
23 FILE *devnull = NULL;
24
25 sepol_debug(0);
26
27 policy_file_init(&pf);
28 pf.type = PF_USE_MEMORY;
29 pf.data = (char *) data;
30 pf.len = size;
31
32 if (policydb_init(&policydb))
33 goto exit;
34
35 if (policydb_read(&policydb, &pf, /*verbose=*/0))
36 goto exit;
37
38 if (policydb_load_isids(&policydb, &sidtab))
39 goto exit;
40
41 if (policydb.policy_type == POLICY_KERN)
42 (void) policydb_optimize(&policydb);
43
44 devnull = fopen("/dev/null", "w");
45 if (!devnull)
46 goto exit;
47
48 (void) write_binary_policy(&policydb, devnull);
49
50 (void) sepol_kernel_policydb_to_conf(devnull, &policydb);
51
52 (void) sepol_kernel_policydb_to_cil(devnull, &policydb);
53
54 exit:
55 if (devnull != NULL)
56 fclose(devnull);
57
58 policydb_destroy(&policydb);
59 sepol_sidtab_destroy(&sidtab);
60
61 /* Non-zero return values are reserved for future use. */
62 return 0;
63 }
64