Mercurial > dropbear

annotate fuzzer-pubkey.c @ 1457:32f990cc96b1 fuzz

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
fix bad assertion
author Matt Johnston <matt@ucc.asn.au>
date Tue, 23 Jan 2018 23:27:40 +0800
parents a90fdd2d2ed8
children 92c93b4a3646
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1369
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1 #include "fuzz.h"
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
2 #include "session.h"
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3 #include "fuzz-wrapfd.h"
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
4 #include "debug.h"
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
5
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6 static void setup_fuzzer(void) {
1456
a90fdd2d2ed8 add fuzzer-preauth_nomaths
Matt Johnston <matt@ucc.asn.au>
parents: 1383
diff changeset
7 fuzz_common_setup();
1369
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 }
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
9
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
10 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
11 static int once = 0;
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
12 if (!once) {
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 setup_fuzzer();
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 once = 1;
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
15 }
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
16
1456
a90fdd2d2ed8 add fuzzer-preauth_nomaths
Matt Johnston <matt@ucc.asn.au>
parents: 1383
diff changeset
17 if (fuzz_set_input(Data, Size) == DROPBEAR_FAILURE) {
1377
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
18 return 0;
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
19 }
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
20
1369
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 m_malloc_set_epoch(1);
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
22
1377
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
23 // choose a keytype based on input
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
24 uint8_t b = 0;
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
25 size_t i;
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
26 for (i = 0; i < Size; i++) {
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
27 b ^= Data[i];
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
28 }
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
29 const char* algoname = fuzz_signkey_names[b%DROPBEAR_SIGNKEY_NUM_NAMED];
d4cc85e6c569 rearrange, all fuzzers now call fuzzer_set_input()
Matt Johnston <matt@ucc.asn.au>
parents: 1369
diff changeset
30 const char* keyblob = "blob"; // keep short
1369
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
31
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
32 if (setjmp(fuzz.jmp) == 0) {
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
33 fuzz_checkpubkey_line(fuzz.input, 5, "/home/me/authorized_keys",
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
34 algoname, strlen(algoname),
1383
f03cfe9c76ac Disable setnonblocking(), get_socket_address(), set_sock_priority()
Matt Johnston <matt@ucc.asn.au>
parents: 1378
diff changeset
35 (unsigned char*)keyblob, strlen(keyblob));
f03cfe9c76ac Disable setnonblocking(), get_socket_address(), set_sock_priority()
Matt Johnston <matt@ucc.asn.au>
parents: 1378
diff changeset
36 m_malloc_free_epoch(1, 0);
1369
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
37 } else {
1378
7209a6e30932 linked list dbmalloc now
Matt Johnston <matt@ucc.asn.au>
parents: 1377
diff changeset
38 m_malloc_free_epoch(1, 1);
1369
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
39 TRACE(("dropbear_exit longjmped"))
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
40 // dropbear_exit jumped here
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
41 }
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
42
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
43 return 0;
ddfcadca3c4c fuzzer-pubkey
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
44 }