Mercurial > dropbear
annotate fuzzer-verify.c @ 1456:a90fdd2d2ed8 fuzz
add fuzzer-preauth_nomaths
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Tue, 23 Jan 2018 23:05:47 +0800 |
| parents | d201105df2ed |
| children | 66a1a2547133 |
| rev | line source |
|---|---|
| 1380 | 1 #include "fuzz.h" |
| 2 #include "session.h" | |
| 3 #include "fuzz-wrapfd.h" | |
| 4 #include "debug.h" | |
| 5 | |
| 6 static void setup_fuzzer(void) { | |
|
1456
a90fdd2d2ed8
add fuzzer-preauth_nomaths
Matt Johnston <matt@ucc.asn.au>
parents:
1380
diff
changeset
|
7 fuzz_common_setup(); |
| 1380 | 8 } |
| 9 | |
| 10 static buffer *verifydata; | |
| 11 | |
| 12 /* Tests reading a public key and verifying a signature */ | |
| 13 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { | |
| 14 static int once = 0; | |
| 15 if (!once) { | |
| 16 setup_fuzzer(); | |
| 17 verifydata = buf_new(30); | |
| 18 buf_putstring(verifydata, "x", 1); | |
| 19 once = 1; | |
| 20 } | |
| 21 | |
|
1456
a90fdd2d2ed8
add fuzzer-preauth_nomaths
Matt Johnston <matt@ucc.asn.au>
parents:
1380
diff
changeset
|
22 if (fuzz_set_input(Data, Size) == DROPBEAR_FAILURE) { |
| 1380 | 23 return 0; |
| 24 } | |
| 25 | |
| 26 m_malloc_set_epoch(1); | |
| 27 | |
| 28 if (setjmp(fuzz.jmp) == 0) { | |
| 29 sign_key *key = new_sign_key(); | |
| 30 enum signkey_type type = DROPBEAR_SIGNKEY_ANY; | |
| 31 if (buf_get_pub_key(fuzz.input, key, &type) == DROPBEAR_SUCCESS) { | |
| 32 /* Don't expect random fuzz input to verify */ | |
| 33 assert(buf_verify(fuzz.input, key, verifydata) == DROPBEAR_FAILURE); | |
| 34 } | |
| 35 sign_key_free(key); | |
| 36 m_malloc_free_epoch(1, 0); | |
| 37 } else { | |
| 38 m_malloc_free_epoch(1, 1); | |
| 39 TRACE(("dropbear_exit longjmped")) | |
| 40 // dropbear_exit jumped here | |
| 41 } | |
| 42 | |
| 43 return 0; | |
| 44 } |