tests/mini-x509-callbacks.c

   1 /*
   2  * Copyright (C) 2008-2012 Free Software Foundation, Inc.
   3  *
   4  * Author: Simon Josefsson
   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 <gnutls/gnutls.h>
  32 #include "utils.h"
  33 #include "eagain-common.h"
  34
  35 /* Tests whether the verify callbacks are operational.
  36  * In addition gnutls_handshake_get_last_in() and gnutls_handshake_get_last_out()
  37  * are tested.
  38  */
  39
  40 const char *side;
  41 static int client_ok = 0, server_ok = 0;
  42 static int pch_ok = 0;
  43
  44 static int client_callback(gnutls_session_t session)
  45 {
  46         client_ok = 1;
  47         return 0;
  48 }
  49
  50 static void verify_alpn(gnutls_session_t session)
  51 {
  52         int ret;
  53         gnutls_datum_t selected;
  54         char str[64];
  55
  56         snprintf(str, sizeof(str), "myproto");
  57
  58         ret = gnutls_alpn_get_selected_protocol(session, &selected);
  59         if (ret < 0) {
  60                 fail("gnutls_alpn_get_selected_protocol: %s\n", gnutls_strerror(ret));
  61                 exit(1);
  62         }
  63
  64         if (strlen(str) != selected.size || memcmp(str, selected.data, selected.size) != 0) {
  65                 fail("expected protocol %s, got %.*s\n", str, selected.size, selected.data);
  66                 exit(1);
  67         }
  68
  69         if (debug)
  70                 success("ALPN got: %s\n", str);
  71 }
  72
  73 static int post_client_hello_callback(gnutls_session_t session)
  74 {
  75         /* verify that the post-client-hello callback has access to ALPN data */
  76         verify_alpn(session);
  77         pch_ok = 1;
  78         return 0;
  79 }
  80
  81 unsigned int msg_order[] = {
  82         GNUTLS_HANDSHAKE_CLIENT_HELLO,
  83         GNUTLS_HANDSHAKE_SERVER_HELLO,
  84         GNUTLS_HANDSHAKE_CERTIFICATE_PKT,
  85         GNUTLS_HANDSHAKE_SERVER_KEY_EXCHANGE,
  86         GNUTLS_HANDSHAKE_CERTIFICATE_REQUEST,
  87         GNUTLS_HANDSHAKE_SERVER_HELLO_DONE,
  88         GNUTLS_HANDSHAKE_CERTIFICATE_PKT,
  89         GNUTLS_HANDSHAKE_CLIENT_KEY_EXCHANGE,
  90         GNUTLS_HANDSHAKE_FINISHED,
  91         GNUTLS_HANDSHAKE_FINISHED,
  92 };
  93
  94 static int handshake_callback(gnutls_session_t session, unsigned int htype,
  95                               unsigned post, unsigned int incoming)
  96 {
  97         static unsigned idx = 0;
  98         unsigned int msg;
  99
 100         if (msg_order[idx] != htype) {
 101                 fail("%s: %s, expected %s\n",
 102                      incoming != 0 ? "Received" : "Sent",
 103                      gnutls_handshake_description_get_name(htype),
 104                      gnutls_handshake_description_get_name(msg_order
 105                                                            [idx]));
 106                 exit(1);
 107         }
 108         idx++;
 109
 110         if (incoming != 0) {
 111                 msg = gnutls_handshake_get_last_in(session);
 112                 if (msg != htype) {
 113                         fail("last input message was not recorded (exp: %d, found: %d) \n", msg, htype);
 114                         exit(1);
 115                 }
 116         } else {
 117                 msg = gnutls_handshake_get_last_out(session);
 118                 if (msg != htype) {
 119                         fail("last output message was not recorded (exp: %d, found: %d) \n", msg, htype);
 120                         exit(1);
 121                 }
 122         }
 123
 124         return 0;
 125 }
 126
 127 static int server_callback(gnutls_session_t session)
 128 {
 129         server_ok = 1;
 130
 131         if (gnutls_handshake_get_last_in(session) !=
 132             GNUTLS_HANDSHAKE_CERTIFICATE_PKT) {
 133                 fail("client's last input message was unexpected\n");
 134                 exit(1);
 135         }
 136
 137         if (gnutls_handshake_get_last_out(session) !=
 138             GNUTLS_HANDSHAKE_SERVER_HELLO_DONE) {
 139                 fail("client's last output message was unexpected\n");
 140                 exit(1);
 141         }
 142
 143         return 0;
 144 }
 145
 146 static void tls_log_func(int level, const char *str)
 147 {
 148         fprintf(stderr, "%s|<%d>| %s", side, level, str);
 149 }
 150
 151 static unsigned char server_cert_pem[] =
 152     "-----BEGIN CERTIFICATE-----\n"
 153     "MIICVjCCAcGgAwIBAgIERiYdMTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
 154     "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTIxWhcNMDgwNDE3MTMyOTIxWjA3MRsw\n"
 155     "GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n"
 156     "Lm9yZzCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA17pcr6MM8C6pJ1aqU46o63+B\n"
 157     "dUxrmL5K6rce+EvDasTaDQC46kwTHzYWk95y78akXrJutsoKiFV1kJbtple8DDt2\n"
 158     "DZcevensf9Op7PuFZKBroEjOd35znDET/z3IrqVgbtm2jFqab7a+n2q9p/CgMyf1\n"
 159     "tx2S5Zacc1LWn9bIjrECAwEAAaOBkzCBkDAMBgNVHRMBAf8EAjAAMBoGA1UdEQQT\n"
 160     "MBGCD3Rlc3QuZ251dGxzLm9yZzATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8B\n"
 161     "Af8EBQMDB6AAMB0GA1UdDgQWBBTrx0Vu5fglyoyNgw106YbU3VW0dTAfBgNVHSME\n"
 162     "GDAWgBTpPBz7rZJu5gakViyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAaFEPTt+7\n"
 163     "bzvBuOf7+QmeQcn29kT6Bsyh1RHJXf8KTk5QRfwp6ogbp94JQWcNQ/S7YDFHglD1\n"
 164     "AwUNBRXwd3riUsMnsxgeSDxYBfJYbDLeohNBsqaPDJb7XailWbMQKfAbFQ8cnOxg\n"
 165     "rOKLUQRWJ0K3HyXRMhbqjdLIaQiCvQLuizo=\n" "-----END CERTIFICATE-----\n";
 166
 167 const gnutls_datum_t server_cert = { server_cert_pem,
 168         sizeof(server_cert_pem)
 169 };
 170
 171 static unsigned char server_key_pem[] =
 172     "-----BEGIN RSA PRIVATE KEY-----\n"
 173     "MIICXAIBAAKBgQDXulyvowzwLqknVqpTjqjrf4F1TGuYvkrqtx74S8NqxNoNALjq\n"
 174     "TBMfNhaT3nLvxqResm62ygqIVXWQlu2mV7wMO3YNlx696ex/06ns+4VkoGugSM53\n"
 175     "fnOcMRP/PciupWBu2baMWppvtr6far2n8KAzJ/W3HZLllpxzUtaf1siOsQIDAQAB\n"
 176     "AoGAYAFyKkAYC/PYF8e7+X+tsVCHXppp8AoP8TEZuUqOZz/AArVlle/ROrypg5kl\n"
 177     "8YunrvUdzH9R/KZ7saNZlAPLjZyFG9beL/am6Ai7q7Ma5HMqjGU8kTEGwD7K+lbG\n"
 178     "iomokKMOl+kkbY/2sI5Czmbm+/PqLXOjtVc5RAsdbgvtmvkCQQDdV5QuU8jap8Hs\n"
 179     "Eodv/tLJ2z4+SKCV2k/7FXSKWe0vlrq0cl2qZfoTUYRnKRBcWxc9o92DxK44wgPi\n"
 180     "oMQS+O7fAkEA+YG+K9e60sj1K4NYbMPAbYILbZxORDecvP8lcphvwkOVUqbmxOGh\n"
 181     "XRmTZUuhBrJhJKKf6u7gf3KWlPl6ShKEbwJASC118cF6nurTjuLf7YKARDjNTEws\n"
 182     "qZEeQbdWYINAmCMj0RH2P0mvybrsXSOD5UoDAyO7aWuqkHGcCLv6FGG+qwJAOVqq\n"
 183     "tXdUucl6GjOKKw5geIvRRrQMhb/m5scb+5iw8A4LEEHPgGiBaF5NtJZLALgWfo5n\n"
 184     "hmC8+G8F0F78znQtPwJBANexu+Tg5KfOnzSILJMo3oXiXhf5PqXIDmbN0BKyCKAQ\n"
 185     "LfkcEcUbVfmDaHpvzwY9VEaoMOKVLitETXdNSxVpvWM=\n"
 186     "-----END RSA PRIVATE KEY-----\n";
 187
 188 const gnutls_datum_t server_key = { server_key_pem,
 189         sizeof(server_key_pem)
 190 };
 191
 192 static void append_alpn(gnutls_session_t session)
 193 {
 194         gnutls_datum_t protocol;
 195         int ret;
 196         char str[64];
 197
 198         snprintf(str, sizeof(str), "myproto");
 199
 200         protocol.data = (void*)str;
 201         protocol.size = strlen(str);
 202
 203         ret = gnutls_alpn_set_protocols(session, &protocol, 1, 0);
 204         if (ret < 0) {
 205                 gnutls_perror(ret);
 206                 exit(1);
 207         }
 208 }
 209
 210 void doit(void)
 211 {
 212         /* Server stuff. */
 213         gnutls_certificate_credentials_t serverx509cred;
 214         gnutls_session_t server;
 215         int sret = GNUTLS_E_AGAIN;
 216         /* Client stuff. */
 217         gnutls_certificate_credentials_t clientx509cred;
 218         gnutls_session_t client;
 219         int cret = GNUTLS_E_AGAIN;
 220
 221         /* General init. */
 222         global_init();
 223         gnutls_global_set_log_function(tls_log_func);
 224         if (debug)
 225                 gnutls_global_set_log_level(2);
 226
 227         /* Init server */
 228         gnutls_certificate_allocate_credentials(&serverx509cred);
 229         gnutls_certificate_set_x509_key_mem(serverx509cred,
 230                                             &server_cert, &server_key,
 231                                             GNUTLS_X509_FMT_PEM);
 232         gnutls_init(&server, GNUTLS_SERVER);
 233         gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
 234                                serverx509cred);
 235         gnutls_priority_set_direct(server, "NORMAL", NULL);
 236         gnutls_transport_set_push_function(server, server_push);
 237         gnutls_transport_set_pull_function(server, server_pull);
 238         gnutls_transport_set_ptr(server, server);
 239         gnutls_certificate_set_verify_function(serverx509cred,
 240                                                server_callback);
 241         gnutls_certificate_server_set_request(server, GNUTLS_CERT_REQUEST);
 242         gnutls_handshake_set_post_client_hello_function(server,
 243                                                         post_client_hello_callback);
 244         gnutls_handshake_set_hook_function(server, GNUTLS_HANDSHAKE_ANY,
 245                                            GNUTLS_HOOK_POST,
 246                                            handshake_callback);
 247         append_alpn(server);
 248
 249         /* Init client */
 250         gnutls_certificate_allocate_credentials(&clientx509cred);
 251         gnutls_init(&client, GNUTLS_CLIENT);
 252         gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
 253                                clientx509cred);
 254         gnutls_priority_set_direct(client, "NORMAL", NULL);
 255         gnutls_transport_set_push_function(client, client_push);
 256         gnutls_transport_set_pull_function(client, client_pull);
 257         gnutls_transport_set_ptr(client, client);
 258         gnutls_certificate_set_verify_function(clientx509cred,
 259                                                client_callback);
 260         append_alpn(client);
 261
 262         HANDSHAKE(client, server);
 263
 264         gnutls_bye(client, GNUTLS_SHUT_RDWR);
 265         gnutls_bye(server, GNUTLS_SHUT_RDWR);
 266
 267         gnutls_deinit(client);
 268         gnutls_deinit(server);
 269
 270         gnutls_certificate_free_credentials(serverx509cred);
 271         gnutls_certificate_free_credentials(clientx509cred);
 272
 273         gnutls_global_deinit();
 274
 275         if (pch_ok == 0)
 276                 fail("Post client hello callback wasn't called\n");
 277
 278         if (server_ok == 0)
 279                 fail("Server certificate verify callback wasn't called\n");
 280
 281         if (client_ok == 0)
 282                 fail("Client certificate verify callback wasn't called\n");
 283 }