tests/x509dn.c

   1 /*
   2  * Copyright (C) 2004-2012 Free Software Foundation, Inc.
   3  * Copyright (C) 2013 Adam Sampson <ats@offog.org>
   4  *
   5  * Author: Simon Josefsson
   6  *
   7  * This file is part of GnuTLS.
   8  *
   9  * GnuTLS is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 3 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * GnuTLS is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with GnuTLS; if not, write to the Free Software Foundation,
  21  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 /* Parts copied from GnuTLS example programs. */
  25
  26 #ifdef HAVE_CONFIG_H
  27 #include <config.h>
  28 #endif
  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32
  33 #if defined(_WIN32)
  34
  35 /* socketpair isn't supported on Win32. */
  36 int main(int argc, char **argv)
  37 {
  38         exit(77);
  39 }
  40
  41 #else
  42
  43 #include <string.h>
  44 #include <sys/types.h>
  45 #include <sys/socket.h>
  46 #if !defined(_WIN32)
  47 #include <sys/wait.h>
  48 #endif
  49 #include <unistd.h>
  50 #include <gnutls/gnutls.h>
  51 #include <gnutls/abstract.h>
  52
  53 #include "utils.h"
  54
  55 #include "ex-session-info.c"
  56 #include "ex-x509-info.c"
  57
  58 pid_t child;
  59
  60 static void tls_log_func(int level, const char *str)
  61 {
  62         fprintf(stderr, "%s |<%d>| %s", child ? "server" : "client", level,
  63                 str);
  64 }
  65
  66 /* A very basic TLS client, with anonymous authentication.
  67  */
  68
  69 #define MAX_BUF 1024
  70 #define MSG "Hello TLS"
  71
  72 static unsigned char ca_pem[] =
  73     "-----BEGIN CERTIFICATE-----\n"
  74     "MIIB5zCCAVKgAwIBAgIERiYdJzALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
  75     "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTExWhcNMDgwNDE3MTMyOTExWjAZMRcw\n"
  76     "FQYDVQQDEw5HbnVUTFMgdGVzdCBDQTCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA\n"
  77     "vuyYeh1vfmslnuggeEKgZAVmQ5ltSdUY7H25WGSygKMUYZ0KT74v8C780qtcNt9T\n"
  78     "7EPH/N6RvB4BprdssgcQLsthR3XKA84jbjjxNCcaGs33lvOz8A1nf8p3hD+cKfRi\n"
  79     "kfYSW2JazLrtCC4yRCas/SPOUxu78of+3HiTfFm/oXUCAwEAAaNDMEEwDwYDVR0T\n"
  80     "AQH/BAUwAwEB/zAPBgNVHQ8BAf8EBQMDBwQAMB0GA1UdDgQWBBTpPBz7rZJu5gak\n"
  81     "Viyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAiaIRqGfp1jPpNeVhABK60SU0KIAy\n"
  82     "njuu7kHq5peUgYn8Jd9zNzExBOEp1VOipGsf6G66oQAhDFp2o8zkz7ZH71zR4HEW\n"
  83     "KoX6n5Emn6DvcEH/9pAhnGxNHJAoS7czTKv/JDZJhkqHxyrE1fuLsg5Qv25DTw7+\n"
  84     "PfqUpIhz5Bbm7J4=\n" "-----END CERTIFICATE-----\n";
  85 const gnutls_datum_t ca = { ca_pem, sizeof(ca_pem) };
  86
  87 static unsigned char cert_pem[] =
  88     "-----BEGIN CERTIFICATE-----\n"
  89     "MIICHjCCAYmgAwIBAgIERiYdNzALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
  90     "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTI3WhcNMDgwNDE3MTMyOTI3WjAdMRsw\n"
  91     "GQYDVQQDExJHbnVUTFMgdGVzdCBjbGllbnQwgZwwCwYJKoZIhvcNAQEBA4GMADCB\n"
  92     "iAKBgLtmQ/Xyxde2jMzF3/WIO7HJS2oOoa0gUEAIgKFPXKPQ+GzP5jz37AR2ExeL\n"
  93     "ZIkiW8DdU3w77XwEu4C5KL6Om8aOoKUSy/VXHqLnu7czSZ/ju0quak1o/8kR4jKN\n"
  94     "zj2AC41179gAgY8oBAOgIo1hBAf6tjd9IQdJ0glhaZiQo1ipAgMBAAGjdjB0MAwG\n"
  95     "A1UdEwEB/wQCMAAwEwYDVR0lBAwwCgYIKwYBBQUHAwIwDwYDVR0PAQH/BAUDAweg\n"
  96     "ADAdBgNVHQ4EFgQUTLkKm/odNON+3svSBxX+odrLaJEwHwYDVR0jBBgwFoAU6Twc\n"
  97     "+62SbuYGpFYsouHAUyfI8pUwCwYJKoZIhvcNAQEFA4GBALujmBJVZnvaTXr9cFRJ\n"
  98     "jpfc/3X7sLUsMvumcDE01ls/cG5mIatmiyEU9qI3jbgUf82z23ON/acwJf875D3/\n"
  99     "U7jyOsBJ44SEQITbin2yUeJMIm1tievvdNXBDfW95AM507ShzP12sfiJkJfjjdhy\n"
 100     "dc8Siq5JojruiMizAf0pA7in\n" "-----END CERTIFICATE-----\n";
 101 const gnutls_datum_t cert = { cert_pem, sizeof(cert_pem) };
 102
 103 static unsigned char key_pem[] =
 104     "-----BEGIN RSA PRIVATE KEY-----\n"
 105     "MIICXAIBAAKBgQC7ZkP18sXXtozMxd/1iDuxyUtqDqGtIFBACIChT1yj0Phsz+Y8\n"
 106     "9+wEdhMXi2SJIlvA3VN8O+18BLuAuSi+jpvGjqClEsv1Vx6i57u3M0mf47tKrmpN\n"
 107     "aP/JEeIyjc49gAuNde/YAIGPKAQDoCKNYQQH+rY3fSEHSdIJYWmYkKNYqQIDAQAB\n"
 108     "AoGADpmARG5CQxS+AesNkGmpauepiCz1JBF/JwnyiX6vEzUh0Ypd39SZztwrDxvF\n"
 109     "PJjQaKVljml1zkJpIDVsqvHdyVdse8M+Qn6hw4x2p5rogdvhhIL1mdWo7jWeVJTF\n"
 110     "RKB7zLdMPs3ySdtcIQaF9nUAQ2KJEvldkO3m/bRJFEp54k0CQQDYy+RlTmwRD6hy\n"
 111     "7UtMjR0H3CSZJeQ8svMCxHLmOluG9H1UKk55ZBYfRTsXniqUkJBZ5wuV1L+pR9EK\n"
 112     "ca89a+1VAkEA3UmBelwEv2u9cAU1QjKjmwju1JgXbrjEohK+3B5y0ESEXPAwNQT9\n"
 113     "TrDM1m9AyxYTWLxX93dI5QwNFJtmbtjeBQJARSCWXhsoaDRG8QZrCSjBxfzTCqZD\n"
 114     "ZXtl807ymCipgJm60LiAt0JLr4LiucAsMZz6+j+quQbSakbFCACB8SLV1QJBAKZQ\n"
 115     "YKf+EPNtnmta/rRKKvySsi3GQZZN+Dt3q0r094XgeTsAqrqujVNfPhTMeP4qEVBX\n"
 116     "/iVX2cmMTSh3w3z8MaECQEp0XJWDVKOwcTW6Ajp9SowtmiZ3YDYo1LF9igb4iaLv\n"
 117     "sWZGfbnU3ryjvkb6YuFjgtzbZDZHWQCo8/cOtOBmPdk=\n"
 118     "-----END RSA PRIVATE KEY-----\n";
 119 const gnutls_datum_t key = { key_pem, sizeof(key_pem) };
 120
 121 #define EXPECT_RDN0 "GnuTLS test CA"
 122
 123 static int
 124 cert_callback(gnutls_session_t session,
 125               const gnutls_datum_t * req_ca_rdn, int nreqs,
 126               const gnutls_pk_algorithm_t * sign_algos,
 127               int sign_algos_length, gnutls_pcert_st ** pcert,
 128               unsigned int *pcert_length, gnutls_privkey_t * pkey)
 129 {
 130         int result;
 131         gnutls_x509_dn_t dn;
 132
 133         if (nreqs != 1) {
 134                 fail("client: invoked to provide client cert, but %d CAs are requested by server.\n",
 135                         nreqs);
 136                 return -1;
 137         }
 138
 139         if (debug)
 140                 success("client: invoked to provide client cert.\n");
 141
 142         result = gnutls_x509_dn_init(&dn);
 143         if (result < 0) {
 144                 fail("client: could not initialize DN.\n");
 145                 return -1;
 146         }
 147
 148         result = gnutls_x509_dn_import(dn, req_ca_rdn);
 149         if (result == 0) {
 150                 gnutls_x509_ava_st val;
 151
 152                 if (debug)
 153                         success("client: imported DN.\n");
 154
 155                 if (gnutls_x509_dn_get_rdn_ava(dn, 0, 0, &val) == 0) {
 156                         if (debug)
 157                                 success("client: got RDN 0.\n");
 158
 159                         if (val.value.size == strlen(EXPECT_RDN0)
 160                             && strncmp((char *) val.value.data,
 161                                        EXPECT_RDN0, val.value.size) == 0) {
 162                                 if (debug)
 163                                         success
 164                                             ("client: RND 0 correct.\n");
 165                         } else {
 166                                 fail("client: RND 0 bad: %.*s\n",
 167                                      val.value.size, val.value.data);
 168                                 return -1;
 169                         }
 170                 } else {
 171                         fail("client: could not retrieve RDN 0.\n");
 172                         return -1;
 173                 }
 174
 175                 gnutls_x509_dn_deinit(dn);
 176         } else {
 177                 fail("client: failed to parse RDN: %s\n",
 178                      gnutls_strerror(result));
 179         }
 180
 181         return 0;
 182 }
 183
 184
 185 static void client(int sd)
 186 {
 187         int ret, ii;
 188         gnutls_session_t session;
 189         char buffer[MAX_BUF + 1];
 190         gnutls_certificate_credentials_t xcred;
 191
 192         global_init();
 193
 194         gnutls_global_set_log_function(tls_log_func);
 195         if (debug)
 196                 gnutls_global_set_log_level(4711);
 197
 198         gnutls_certificate_allocate_credentials(&xcred);
 199
 200         /* sets the trusted cas file
 201          */
 202         ret = gnutls_certificate_set_x509_trust_mem(xcred, &ca,
 203                                               GNUTLS_X509_FMT_PEM);
 204         if (ret <= 0) {
 205                 fail("client: no CAs loaded!\n");
 206                 goto end;
 207         }
 208
 209         gnutls_certificate_set_retrieve_function2(xcred, cert_callback);
 210
 211         /* Initialize TLS session
 212          */
 213         gnutls_init(&session, GNUTLS_CLIENT);
 214
 215         /* Use default priorities */
 216         gnutls_priority_set_direct(session, "NORMAL", NULL);
 217
 218         /* put the x509 credentials to the current session
 219          */
 220         gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
 221
 222         gnutls_transport_set_int(session, sd);
 223
 224         /* Perform the TLS handshake
 225          */
 226         ret = gnutls_handshake(session);
 227
 228         if (ret < 0) {
 229                 fail("client: Handshake failed\n");
 230                 gnutls_perror(ret);
 231                 goto end;
 232         } else {
 233                 if (debug)
 234                         success("client: Handshake was completed\n");
 235         }
 236
 237         if (debug)
 238                 success("client: TLS version is: %s\n",
 239                         gnutls_protocol_get_name
 240                         (gnutls_protocol_get_version(session)));
 241
 242         /* see the Getting peer's information example */
 243         if (debug)
 244                 print_info(session);
 245
 246         gnutls_record_send(session, MSG, strlen(MSG));
 247
 248         ret = gnutls_record_recv(session, buffer, MAX_BUF);
 249         if (ret == 0) {
 250                 if (debug)
 251                         success
 252                             ("client: Peer has closed the TLS connection\n");
 253                 goto end;
 254         } else if (ret < 0) {
 255                 fail("client: Error: %s\n", gnutls_strerror(ret));
 256                 goto end;
 257         }
 258
 259         if (debug) {
 260                 printf("- Received %d bytes: ", ret);
 261                 for (ii = 0; ii < ret; ii++) {
 262                         fputc(buffer[ii], stdout);
 263                 }
 264                 fputs("\n", stdout);
 265         }
 266
 267         gnutls_bye(session, GNUTLS_SHUT_RDWR);
 268
 269       end:
 270
 271         close(sd);
 272
 273         gnutls_deinit(session);
 274
 275         gnutls_certificate_free_credentials(xcred);
 276
 277         gnutls_global_deinit();
 278 }
 279
 280 /* This is a sample TLS 1.0 echo server, using X.509 authentication.
 281  */
 282
 283 #define MAX_BUF 1024
 284 #define DH_BITS 1024
 285
 286 /* These are global */
 287
 288 static gnutls_dh_params_t dh_params;
 289
 290 static int generate_dh_params(void)
 291 {
 292         const gnutls_datum_t p3 = { (void *) pkcs3, strlen(pkcs3) };
 293         /* Generate Diffie-Hellman parameters - for use with DHE
 294          * kx algorithms. These should be discarded and regenerated
 295          * once a day, once a week or once a month. Depending on the
 296          * security requirements.
 297          */
 298         gnutls_dh_params_init(&dh_params);
 299         return gnutls_dh_params_import_pkcs3(dh_params, &p3,
 300                                              GNUTLS_X509_FMT_PEM);
 301 }
 302
 303
 304
 305 static unsigned char server_cert_pem[] =
 306     "-----BEGIN CERTIFICATE-----\n"
 307     "MIICVjCCAcGgAwIBAgIERiYdMTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
 308     "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTIxWhcNMDgwNDE3MTMyOTIxWjA3MRsw\n"
 309     "GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n"
 310     "Lm9yZzCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA17pcr6MM8C6pJ1aqU46o63+B\n"
 311     "dUxrmL5K6rce+EvDasTaDQC46kwTHzYWk95y78akXrJutsoKiFV1kJbtple8DDt2\n"
 312     "DZcevensf9Op7PuFZKBroEjOd35znDET/z3IrqVgbtm2jFqab7a+n2q9p/CgMyf1\n"
 313     "tx2S5Zacc1LWn9bIjrECAwEAAaOBkzCBkDAMBgNVHRMBAf8EAjAAMBoGA1UdEQQT\n"
 314     "MBGCD3Rlc3QuZ251dGxzLm9yZzATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8B\n"
 315     "Af8EBQMDB6AAMB0GA1UdDgQWBBTrx0Vu5fglyoyNgw106YbU3VW0dTAfBgNVHSME\n"
 316     "GDAWgBTpPBz7rZJu5gakViyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAaFEPTt+7\n"
 317     "bzvBuOf7+QmeQcn29kT6Bsyh1RHJXf8KTk5QRfwp6ogbp94JQWcNQ/S7YDFHglD1\n"
 318     "AwUNBRXwd3riUsMnsxgeSDxYBfJYbDLeohNBsqaPDJb7XailWbMQKfAbFQ8cnOxg\n"
 319     "rOKLUQRWJ0K3HyXRMhbqjdLIaQiCvQLuizo=\n" "-----END CERTIFICATE-----\n";
 320
 321 const gnutls_datum_t server_cert = { server_cert_pem,
 322         sizeof(server_cert_pem)
 323 };
 324
 325 static unsigned char server_key_pem[] =
 326     "-----BEGIN RSA PRIVATE KEY-----\n"
 327     "MIICXAIBAAKBgQDXulyvowzwLqknVqpTjqjrf4F1TGuYvkrqtx74S8NqxNoNALjq\n"
 328     "TBMfNhaT3nLvxqResm62ygqIVXWQlu2mV7wMO3YNlx696ex/06ns+4VkoGugSM53\n"
 329     "fnOcMRP/PciupWBu2baMWppvtr6far2n8KAzJ/W3HZLllpxzUtaf1siOsQIDAQAB\n"
 330     "AoGAYAFyKkAYC/PYF8e7+X+tsVCHXppp8AoP8TEZuUqOZz/AArVlle/ROrypg5kl\n"
 331     "8YunrvUdzH9R/KZ7saNZlAPLjZyFG9beL/am6Ai7q7Ma5HMqjGU8kTEGwD7K+lbG\n"
 332     "iomokKMOl+kkbY/2sI5Czmbm+/PqLXOjtVc5RAsdbgvtmvkCQQDdV5QuU8jap8Hs\n"
 333     "Eodv/tLJ2z4+SKCV2k/7FXSKWe0vlrq0cl2qZfoTUYRnKRBcWxc9o92DxK44wgPi\n"
 334     "oMQS+O7fAkEA+YG+K9e60sj1K4NYbMPAbYILbZxORDecvP8lcphvwkOVUqbmxOGh\n"
 335     "XRmTZUuhBrJhJKKf6u7gf3KWlPl6ShKEbwJASC118cF6nurTjuLf7YKARDjNTEws\n"
 336     "qZEeQbdWYINAmCMj0RH2P0mvybrsXSOD5UoDAyO7aWuqkHGcCLv6FGG+qwJAOVqq\n"
 337     "tXdUucl6GjOKKw5geIvRRrQMhb/m5scb+5iw8A4LEEHPgGiBaF5NtJZLALgWfo5n\n"
 338     "hmC8+G8F0F78znQtPwJBANexu+Tg5KfOnzSILJMo3oXiXhf5PqXIDmbN0BKyCKAQ\n"
 339     "LfkcEcUbVfmDaHpvzwY9VEaoMOKVLitETXdNSxVpvWM=\n"
 340     "-----END RSA PRIVATE KEY-----\n";
 341
 342 const gnutls_datum_t server_key = { server_key_pem,
 343         sizeof(server_key_pem)
 344 };
 345
 346 static void server(int sd)
 347 {
 348 gnutls_certificate_credentials_t x509_cred;
 349 int ret;
 350 gnutls_session_t session;
 351 char buffer[MAX_BUF + 1];
 352         /* this must be called once in the program
 353          */
 354         global_init();
 355
 356         gnutls_global_set_log_function(tls_log_func);
 357         if (debug)
 358                 gnutls_global_set_log_level(4711);
 359
 360         gnutls_certificate_allocate_credentials(&x509_cred);
 361         ret = gnutls_certificate_set_x509_trust_mem(x509_cred, &ca,
 362                                               GNUTLS_X509_FMT_PEM);
 363         if (ret == 0) {
 364                 fail("server: no CAs loaded\n");
 365         }
 366
 367         gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert,
 368                                             &server_key,
 369                                             GNUTLS_X509_FMT_PEM);
 370
 371         if (debug)
 372                 success("Launched, generating DH parameters...\n");
 373
 374         generate_dh_params();
 375
 376         gnutls_certificate_set_dh_params(x509_cred, dh_params);
 377
 378         gnutls_init(&session, GNUTLS_SERVER);
 379
 380         /* avoid calling all the priority functions, since the defaults
 381          * are adequate.
 382          */
 383         gnutls_priority_set_direct(session, "NORMAL", NULL);
 384
 385         gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
 386
 387         /* request client certificate if any.
 388          */
 389         gnutls_certificate_server_set_request(session,
 390                                               GNUTLS_CERT_REQUEST);
 391
 392         gnutls_dh_set_prime_bits(session, DH_BITS);
 393
 394         gnutls_transport_set_int(session, sd);
 395         gnutls_handshake_set_timeout(session, 20 * 1000);
 396
 397         ret = gnutls_handshake(session);
 398         if (ret < 0) {
 399                 close(sd);
 400                 gnutls_deinit(session);
 401                 fail("server: Handshake has failed (%s)\n\n",
 402                      gnutls_strerror(ret));
 403                 return;
 404         }
 405         if (debug)
 406                 success("server: Handshake was completed\n");
 407
 408         if (debug)
 409                 success("server: TLS version is: %s\n",
 410                         gnutls_protocol_get_name
 411                         (gnutls_protocol_get_version(session)));
 412
 413         /* see the Getting peer's information example */
 414         if (debug)
 415                 print_info(session);
 416
 417         for (;;) {
 418                 memset(buffer, 0, MAX_BUF + 1);
 419                 ret = gnutls_record_recv(session, buffer, MAX_BUF);
 420
 421                 if (ret == 0) {
 422                         if (debug)
 423                                 success
 424                                     ("server: Peer has closed the GnuTLS connection\n");
 425                         break;
 426                 } else if (ret < 0) {
 427                         fail("server: Received corrupted data(%d). Closing...\n", ret);
 428                         break;
 429                 } else if (ret > 0) {
 430                         /* echo data back to the client
 431                          */
 432                         gnutls_record_send(session, buffer,
 433                                            strlen(buffer));
 434                 }
 435         }
 436         /* do not wait for the peer to close the connection.
 437          */
 438         gnutls_bye(session, GNUTLS_SHUT_WR);
 439
 440         close(sd);
 441         gnutls_deinit(session);
 442
 443         gnutls_certificate_free_credentials(x509_cred);
 444
 445         gnutls_dh_params_deinit(dh_params);
 446
 447         gnutls_global_deinit();
 448
 449         if (debug)
 450                 success("server: finished\n");
 451 }
 452
 453
 454 void doit(void)
 455 {
 456         int sockets[2];
 457         int err;
 458
 459         err = socketpair(AF_UNIX, SOCK_STREAM, 0, sockets);
 460         if (err == -1) {
 461                 perror("socketpair");
 462                 fail("socketpair failed\n");
 463                 return;
 464         }
 465
 466         child = fork();
 467         if (child < 0) {
 468                 perror("fork");
 469                 fail("fork");
 470                 return;
 471         }
 472
 473         if (child) {
 474                 int status;
 475                 /* parent */
 476                 server(sockets[0]);
 477                 wait(&status);
 478
 479 #if defined WIFEXITED && defined WEXITSTATUS
 480                 if (WIFEXITED(status) && WEXITSTATUS(status)) {
 481                         fail("server: client failed with exit status %d\n",
 482                              WEXITSTATUS(status));
 483                 }
 484 #endif
 485
 486 #if defined WIFSIGNALED && defined WTERMSIG
 487                 if (WIFSIGNALED(status)) {
 488                         fail("server: client failed with fatal signal %d\n", WTERMSIG(status));
 489                 }
 490 #endif
 491
 492         } else
 493                 client(sockets[1]);
 494 }
 495
 496 #endif                          /* _WIN32 */