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comparison fuzz-common.c @ 1348:5c2899e35b63 fuzz

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fuzz harness
author Matt Johnston <matt@ucc.asn.au>
date Sat, 13 May 2017 22:50:54 +0800
parents
children 2722f2347a48
comparison
equal deleted inserted replaced
1347:b28624698130 1348:5c2899e35b63
1 #include "includes.h"
2
3 #ifdef DROPBEAR_FUZZ
4
5 #include "includes.h"
6 #include "fuzz.h"
7 #include "dbutil.h"
8 #include "runopts.h"
9
10 struct dropbear_fuzz_options fuzz;
11
12 static void load_fixed_hostkeys(void);
13
14 static void common_setup_fuzzer(void) {
15 fuzz.fuzzing = 1;
16 }
17
18 void svr_setup_fuzzer(void) {
19 struct passwd *pw;
20
21 common_setup_fuzzer();
22
23 char *argv[] = {
24 "-E",
25 };
26
27 int argc = sizeof(argv) / sizeof(*argv);
28 svr_getopts(argc, argv);
29
30 /* user lookups might be slow, cache it */
31 pw = getpwuid(getuid());
32 dropbear_assert(pw);
33 fuzz.pw_name = m_strdup(pw->pw_name);
34 fuzz.pw_dir = m_strdup(pw->pw_dir);
35 fuzz.pw_shell = m_strdup(pw->pw_shell);
36 fuzz.pw_passwd = m_strdup("!!zzznope");
37
38 load_fixed_hostkeys();
39 }
40
41 static void load_fixed_hostkeys(void) {
42 #include "fuzz-hostkeys.c"
43
44 buffer *b = buf_new(3000);
45 enum signkey_type type;
46
47 TRACE(("load fixed hostkeys"))
48
49 svr_opts.hostkey = new_sign_key();
50
51 buf_setlen(b, 0);
52 buf_putbytes(b, keyr, keyr_len);
53 buf_setpos(b, 0);
54 type = DROPBEAR_SIGNKEY_RSA;
55 if (buf_get_priv_key(b, svr_opts.hostkey, &type) == DROPBEAR_FAILURE) {
56 dropbear_exit("failed fixed rsa hostkey");
57 }
58
59 buf_setlen(b, 0);
60 buf_putbytes(b, keyd, keyd_len);
61 buf_setpos(b, 0);
62 type = DROPBEAR_SIGNKEY_DSS;
63 if (buf_get_priv_key(b, svr_opts.hostkey, &type) == DROPBEAR_FAILURE) {
64 dropbear_exit("failed fixed dss hostkey");
65 }
66
67 buf_setlen(b, 0);
68 buf_putbytes(b, keye, keye_len);
69 buf_setpos(b, 0);
70 type = DROPBEAR_SIGNKEY_ECDSA_NISTP256;
71 if (buf_get_priv_key(b, svr_opts.hostkey, &type) == DROPBEAR_FAILURE) {
72 dropbear_exit("failed fixed ecdsa hostkey");
73 }
74
75 buf_free(b);
76 }
77
78 #endif /* DROPBEAR_FUZZ */