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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Copyright (C) 2008-2012 Free Software Foundation, Inc.
* Copyright (C) 2018 Red Hat, Inc.
*
* Author: Simon Josefsson, Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* GnuTLS is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuTLS is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <gnutls/gnutls.h>
#include "cert-common.h"
#include "cmocka-common.h"
/* This program tests server initiated rehandshake */
static void tls_log_func(int level, const char *str)
{
fprintf(stderr, "<%d>| %s", level, str);
}
#define MAX_REHANDSHAKES 16
static void test_rehandshake(void **glob_state, unsigned appdata)
{
/* Server stuff. */
gnutls_certificate_credentials_t serverx509cred;
gnutls_session_t server;
int sret = GNUTLS_E_AGAIN;
/* Client stuff. */
gnutls_certificate_credentials_t clientx509cred;
gnutls_session_t client;
int cret = GNUTLS_E_AGAIN;
char buffer[64];
int ret;
unsigned i;
/* General init. */
reset_buffers();
ret = gnutls_global_init();
assert_return_code(ret, 0);
gnutls_global_set_log_function(tls_log_func);
/* Init server */
ret = gnutls_certificate_allocate_credentials(&serverx509cred);
assert_return_code(ret, 0);
ret = gnutls_certificate_set_x509_key_mem(serverx509cred,
&server_cert, &server_key,
GNUTLS_X509_FMT_PEM);
assert_return_code(ret, 0);
ret = gnutls_init(&server, GNUTLS_SERVER);
assert_return_code(ret, 0);
ret = gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
serverx509cred);
assert_return_code(ret, 0);
ret = gnutls_priority_set_direct(server, "NORMAL:-VERS-TLS-ALL:+VERS-TLS1.1:+VERS-TLS1.2", NULL);
assert_return_code(ret, 0);
gnutls_transport_set_push_function(server, server_push);
gnutls_transport_set_pull_function(server, server_pull);
gnutls_transport_set_ptr(server, server);
/* Init client */
ret = gnutls_certificate_allocate_credentials(&clientx509cred);
assert_return_code(ret, 0);
ret = gnutls_init(&client, GNUTLS_CLIENT);
assert_return_code(ret, 0);
ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
clientx509cred);
assert_return_code(ret, 0);
ret = gnutls_priority_set_direct(client, "NORMAL:-VERS-TLS-ALL:+VERS-TLS1.1:+VERS-TLS1.2", NULL);
assert_return_code(ret, 0);
gnutls_transport_set_push_function(client, client_push);
gnutls_transport_set_pull_function(client, client_pull);
gnutls_transport_set_ptr(client, client);
HANDSHAKE(client, server);
if (appdata) {
/* send application data prior to handshake */
ssize_t n;
char b[1];
do {
sret = gnutls_rehandshake(server);
} while (sret == GNUTLS_E_AGAIN);
do {
n = gnutls_record_recv(client, b, 1);
} while(n == GNUTLS_E_AGAIN);
assert_int_equal(n, GNUTLS_E_REHANDSHAKE);
/* client sends app data and the server ignores them */
do {
cret = gnutls_record_send(client, "x", 1);
} while (cret == GNUTLS_E_AGAIN);
do {
sret = gnutls_handshake(server);
} while (sret == GNUTLS_E_AGAIN);
assert_int_equal(sret, GNUTLS_E_GOT_APPLICATION_DATA);
do {
n = gnutls_record_recv(server, buffer, sizeof(buffer));
} while(n == GNUTLS_E_AGAIN);
HANDSHAKE(client, server);
} else {
ssize_t n;
char b[1];
for (i=0;i<MAX_REHANDSHAKES;i++) {
sret = gnutls_rehandshake(server);
n = gnutls_record_recv(client, b, 1);
assert_int_equal(n, GNUTLS_E_REHANDSHAKE);
HANDSHAKE(client, server);
}
}
gnutls_bye(client, GNUTLS_SHUT_RDWR);
gnutls_bye(server, GNUTLS_SHUT_RDWR);
gnutls_deinit(client);
gnutls_deinit(server);
gnutls_certificate_free_credentials(serverx509cred);
gnutls_certificate_free_credentials(clientx509cred);
gnutls_global_deinit();
}
static void tls12_rehandshake_server(void **glob_state)
{
test_rehandshake(glob_state, 0);
}
static void tls12_rehandshake_server_appdata(void **glob_state)
{
test_rehandshake(glob_state, 1);
}
int main(void)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test(tls12_rehandshake_server),
cmocka_unit_test(tls12_rehandshake_server_appdata),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}
|
