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
183
184
185
186
187
188
189
190
191
192
193
194
|
/*
* Copyright (C) 2016 Red Hat, Inc.
*
* Author: 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 General Public License
* along with GnuTLS; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#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 <gnutls/dtls.h>
#include <assert.h>
#include "utils.h"
#include "eagain-common.h"
#include "cert-common.h"
/*
* That test verifies whether all the supported versions are negotiated
* with the NORMAL priority string.
*/
const char *side;
static void tls_log_func(int level, const char *str)
{
fprintf(stderr, "%s|<%d>| %s", side, level, str);
}
static void try(const char *client_prio, int expected)
{
int ret;
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;
unsigned flags = 0;
unsigned dtls = 0;
const char *server_prio = "NORMAL:+VERS-TLS-ALL";
if (expected >= GNUTLS_DTLS_VERSION_MIN && expected <= GNUTLS_DTLS_VERSION_MAX) {
dtls = 1;
/* we do not really do negotiation in that version */
if (expected == GNUTLS_DTLS0_9)
server_prio = client_prio;
}
/* General init. */
gnutls_global_set_log_function(tls_log_func);
if (debug)
gnutls_global_set_log_level(6);
/* Init server */
gnutls_certificate_allocate_credentials(&serverx509cred);
gnutls_certificate_set_x509_key_mem(serverx509cred,
&server_cert, &server_key,
GNUTLS_X509_FMT_PEM);
if (dtls)
flags |= (GNUTLS_DATAGRAM | GNUTLS_NONBLOCK);
gnutls_init(&server, GNUTLS_SERVER|flags);
gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
serverx509cred);
assert(gnutls_priority_set_direct(server,
server_prio,
NULL) >= 0);
gnutls_transport_set_push_function(server, server_push);
gnutls_transport_set_pull_function(server, server_pull);
gnutls_transport_set_pull_timeout_function(server, server_pull_timeout_func);
gnutls_transport_set_ptr(server, server);
/* Init client */
ret = gnutls_certificate_allocate_credentials(&clientx509cred);
if (ret < 0)
exit(1);
ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca_cert, GNUTLS_X509_FMT_PEM);
if (ret < 0)
exit(1);
ret = gnutls_init(&client, GNUTLS_CLIENT|flags);
if (ret < 0)
exit(1);
ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
clientx509cred);
if (ret < 0)
exit(1);
gnutls_transport_set_push_function(client, client_push);
gnutls_transport_set_pull_function(client, client_pull);
gnutls_transport_set_pull_timeout_function(client, client_pull_timeout_func);
gnutls_transport_set_ptr(client, client);
ret = gnutls_priority_set_direct(client, client_prio, NULL);
if (ret < 0) {
fprintf(stderr, "error in %s\n", client_prio);
exit(1);
}
if (expected > 0) {
success("handshake with %s\n", client_prio);
if (dtls) {
HANDSHAKE_DTLS(client, server);
} else {
HANDSHAKE(client, server);
}
ret = gnutls_protocol_get_version(client);
if (ret != expected) {
fail("unexpected negotiated protocol %s (expected %s)\n", gnutls_protocol_get_name(ret),
gnutls_protocol_get_name(expected));
exit(1);
}
} else {
HANDSHAKE_EXPECT(client, server, GNUTLS_E_AGAIN, GNUTLS_E_UNSUPPORTED_VERSION_PACKET);
}
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);
}
void doit(void)
{
global_init();
try("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.0", GNUTLS_TLS1_0);
reset_buffers();
try("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.1", GNUTLS_TLS1_1);
reset_buffers();
try("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.2", GNUTLS_TLS1_2);
reset_buffers();
try("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.3", GNUTLS_TLS1_3);
reset_buffers();
try("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.3:+VERS-TLS1.0", GNUTLS_TLS1_0);
reset_buffers();
/* similar to above test, but checks a different syntax */
try("NORMAL:-VERS-ALL:+VERS-TLS1.3:+VERS-TLS1.1", GNUTLS_TLS1_1);
reset_buffers();
try("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.3:+VERS-TLS1.2", GNUTLS_TLS1_3);
reset_buffers();
/* If TLS 1.3 is enabled in the server, prefer the latest
* possible version regardless of the client's precedence.
* See https://gitlab.com/gnutls/gnutls/issues/837 for the
* rationale.
*/
try("NORMAL:-VERS-TLS-ALL:+VERS-TLS1.2:+VERS-TLS1.3", GNUTLS_TLS1_3);
reset_buffers();
#ifdef ENABLE_SSL3
try("NORMAL:-VERS-TLS-ALL:+VERS-SSL3.0", -1);
reset_buffers();
#endif
try("NORMAL:-VERS-ALL:+VERS-DTLS1.0", GNUTLS_DTLS1_0);
reset_buffers();
try("NORMAL:-VERS-DTLS-ALL:+VERS-DTLS1.2", GNUTLS_DTLS1_2);
reset_buffers();
/* special test for this legacy crap */
try("NONE:+VERS-DTLS0.9:+COMP-NULL:+AES-128-CBC:+SHA1:+RSA:%COMPAT", GNUTLS_DTLS0_9);
reset_buffers();
gnutls_global_deinit();
}
|
