1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* Copyright (C) 2017 Nikos Mavrogiannopoulos
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
#include <assert.h>
#include <fcntl.h>
#include <stdint.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <gnutls/gnutls.h>
#include "psk.h"
#include "mem.h"
#include "fuzzer.h"
int LLVMFuzzerTestOneInput(const uint8_t * data, size_t size)
{
int res;
gnutls_session_t session;
gnutls_psk_client_credentials_t pcred;
struct mem_st memdata;
gnutls_datum_t psk_key;
psk_key.data = (unsigned char*)psk_key16;
psk_key.size = 16;
res = gnutls_init(&session, GNUTLS_CLIENT);
assert(res >= 0);
res = gnutls_psk_allocate_client_credentials(&pcred);
assert(res >= 0);
res = gnutls_psk_set_client_credentials(pcred, "test", &psk_key, GNUTLS_PSK_KEY_RAW);
assert(res >= 0);
res = gnutls_credentials_set(session, GNUTLS_CRD_PSK, pcred);
assert(res >= 0);
res = gnutls_priority_set_direct(session, "NORMAL:-KX-ALL:+ECDHE-PSK:+DHE-PSK:+PSK:"VERS_STR, NULL);
assert(res >= 0);
memdata.data = data;
memdata.size = size;
gnutls_transport_set_push_function(session, mem_push);
gnutls_transport_set_pull_function(session, mem_pull);
gnutls_transport_set_pull_timeout_function(session,
mem_pull_timeout);
gnutls_transport_set_ptr(session, &memdata);
do {
res = gnutls_handshake(session);
} while (res < 0 && gnutls_error_is_fatal(res) == 0);
if (res >= 0) {
for (;;) {
char buf[16384];
res = gnutls_record_recv(session, buf, sizeof(buf));
if (res <= 0) {
break;
}
}
}
gnutls_deinit(session);
gnutls_psk_free_client_credentials(pcred);
return 0;
}
|
