1 /*
2 * Copyright (C) 2016 Red Hat, Inc.
3 *
4 * Author: Nikos Mavrogiannopoulos
5 *
6 * This file is part of GnuTLS.
7 *
8 * GnuTLS is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * GnuTLS is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with GnuTLS; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
21 */
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <errno.h>
31 #include <assert.h>
32 #include <gnutls/gnutls.h>
33 #include "utils.h"
34 #include "eagain-common.h"
35
36 /* This test checks whether the client switching certificates is detected
37 * by the server */
38
39 const char *side;
40
tls_log_func(int level,const char * str)41 static void tls_log_func(int level, const char *str)
42 {
43 fprintf(stderr, "%s|<%d>| %s", side, level, str);
44 }
45
46 #include "cert-common.h"
47
48 #define SENT 0
49 #define NOT_SENT 1
50
51 enum {
52 INCORRECT_CA_FORCE = 0,
53 INCORRECT_CA = 1,
54 CORRECT_CA = 2,
55 NO_CA = 3
56 };
57
try(const char * prio,unsigned expect,unsigned ca_type)58 static void try(const char *prio, unsigned expect, unsigned ca_type)
59 {
60 int ret;
61 /* Server stuff. */
62 gnutls_certificate_credentials_t serverx509cred;
63 gnutls_dh_params_t dh_params;
64 const gnutls_datum_t p3 =
65 { (unsigned char *) pkcs3, strlen(pkcs3) };
66 gnutls_session_t server;
67 int sret = GNUTLS_E_AGAIN;
68 /* Client stuff. */
69 gnutls_certificate_credentials_t clientx509cred;
70 unsigned flags = 0;
71 gnutls_session_t client;
72 int cret = GNUTLS_E_AGAIN;
73
74 /* General init. */
75 gnutls_global_set_log_function(tls_log_func);
76 if (debug)
77 gnutls_global_set_log_level(6);
78
79 /* Init server */
80 gnutls_certificate_allocate_credentials(&serverx509cred);
81 gnutls_certificate_set_x509_key_mem(serverx509cred,
82 &server_ca3_cert_chain, &server_ca3_key,
83 GNUTLS_X509_FMT_PEM);
84
85 gnutls_dh_params_init(&dh_params);
86 gnutls_dh_params_import_pkcs3(dh_params, &p3, GNUTLS_X509_FMT_PEM);
87 gnutls_certificate_set_dh_params(serverx509cred, dh_params);
88
89 gnutls_init(&server, GNUTLS_SERVER);
90 gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUEST);
91
92 if (ca_type == CORRECT_CA) {
93 ret = gnutls_certificate_set_x509_trust_mem(serverx509cred, &ca3_cert, GNUTLS_X509_FMT_PEM);
94 } else if (ca_type == INCORRECT_CA || ca_type == INCORRECT_CA_FORCE) {
95 ret = gnutls_certificate_set_x509_trust_mem(serverx509cred, &unknown_ca_cert, GNUTLS_X509_FMT_PEM);
96 } else if (ca_type == NO_CA) {
97 ret = 0;
98 } else {
99 abort();
100 }
101 ret = 0;
102 if (ret < 0)
103 exit(1);
104
105
106 gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
107 serverx509cred);
108
109 assert(gnutls_priority_set_direct(server, prio, NULL) >= 0);
110 gnutls_transport_set_push_function(server, server_push);
111 gnutls_transport_set_pull_function(server, server_pull);
112 gnutls_transport_set_ptr(server, server);
113
114 /* Init client */
115
116 ret = gnutls_certificate_allocate_credentials(&clientx509cred);
117 if (ret < 0)
118 exit(1);
119
120 ret = gnutls_certificate_set_x509_key_mem(clientx509cred,
121 &cli_ca3_cert_chain, &cli_ca3_key,
122 GNUTLS_X509_FMT_PEM);
123 if (ret < 0)
124 exit(1);
125
126
127 ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca3_cert, GNUTLS_X509_FMT_PEM);
128 if (ret < 0)
129 exit(1);
130
131 if (ca_type == INCORRECT_CA_FORCE) {
132 flags |= GNUTLS_FORCE_CLIENT_CERT;
133 }
134
135 ret = gnutls_init(&client, GNUTLS_CLIENT|flags);
136 if (ret < 0)
137 exit(1);
138
139 ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
140 clientx509cred);
141 if (ret < 0)
142 exit(1);
143
144 ret = gnutls_priority_set_direct(client, prio, NULL);
145 if (ret < 0)
146 exit(1);
147
148 gnutls_transport_set_push_function(client, client_push);
149 gnutls_transport_set_pull_function(client, client_pull);
150 gnutls_transport_set_ptr(client, client);
151
152 success("Testing CA type %d, expecting %s\n", ca_type, expect==SENT?"sent":"not sent");
153
154 HANDSHAKE(client, server);
155
156 if (expect == SENT) {
157 if (gnutls_certificate_get_ours(client) == NULL) {
158 fail("Test %d: client didn't send any certificate\n", ca_type);
159 exit(1);
160 }
161 } else {
162 if (gnutls_certificate_get_ours(client) != NULL) {
163 fail("Test %d: client sent a certificate, although not expected\n", ca_type);
164 exit(1);
165 }
166 }
167
168 gnutls_deinit(client);
169 gnutls_deinit(server);
170
171 gnutls_certificate_free_credentials(serverx509cred);
172 gnutls_certificate_free_credentials(clientx509cred);
173 gnutls_dh_params_deinit(dh_params);
174 }
175
start(const char * prio)176 static void start(const char *prio)
177 {
178 global_init();
179
180 success("trying %s\n", prio);
181
182 try(prio, SENT, NO_CA);
183 try(prio, SENT, CORRECT_CA);
184 try(prio, NOT_SENT, INCORRECT_CA);
185 try(prio, SENT, INCORRECT_CA_FORCE);
186 gnutls_global_deinit();
187 }
188
doit(void)189 void doit(void)
190 {
191 start("NORMAL:-VERS-ALL:+VERS-TLS1.2");
192 start("NORMAL:-VERS-ALL:+VERS-TLS1.3");
193 start("NORMAL");
194 }
195