tests/mini-x509-rehandshake.c

   1 /*
   2  * Copyright (C) 2008, 2010 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
  33 static void
  34 tls_log_func (int level, const char *str)
  35 {
  36   fprintf (stderr, "|<%d>| %s", level, str);
  37 }
  38
  39 static char *to_server;
  40 static size_t to_server_len;
  41
  42 static char *to_client;
  43 static size_t to_client_len;
  44
  45 static ssize_t
  46 client_pull (gnutls_transport_ptr_t tr, void *data, size_t len)
  47 {
  48   if (to_client_len < len)
  49     {
  50       gnutls_transport_set_global_errno (EAGAIN);
  51       return -1;
  52     }
  53
  54   memcpy (data, to_client, len);
  55
  56   memmove (to_client, to_client + len, to_client_len - len);
  57   to_client_len -= len;
  58
  59   return len;
  60 }
  61
  62 static ssize_t
  63 client_push (gnutls_transport_ptr_t tr, const void *data, size_t len)
  64 {
  65   size_t newlen = to_server_len + len;
  66   char *tmp;
  67
  68   tmp = realloc (to_server, newlen);
  69   if (!tmp)
  70     abort ();
  71   to_server = tmp;
  72
  73   memcpy (to_server + to_server_len, data, len);
  74   to_server_len = newlen;
  75
  76   return len;
  77 }
  78
  79 static ssize_t
  80 server_pull (gnutls_transport_ptr_t tr, void *data, size_t len)
  81 {
  82   if (to_server_len < len)
  83     {
  84       gnutls_transport_set_global_errno (EAGAIN);
  85       return -1;
  86     }
  87
  88   memcpy (data, to_server, len);
  89
  90   memmove (to_server, to_server + len, to_server_len - len);
  91   to_server_len -= len;
  92
  93   return len;
  94 }
  95
  96 static ssize_t
  97 server_push (gnutls_transport_ptr_t tr, const void *data, size_t len)
  98 {
  99   size_t newlen = to_client_len + len;
 100   char *tmp;
 101
 102   tmp = realloc (to_client, newlen);
 103   if (!tmp)
 104     abort ();
 105   to_client = tmp;
 106
 107   memcpy (to_client + to_client_len, data, len);
 108   to_client_len = newlen;
 109
 110   return len;
 111 }
 112
 113 static unsigned char server_cert_pem[] =
 114   "-----BEGIN CERTIFICATE-----\n"
 115   "MIICVjCCAcGgAwIBAgIERiYdMTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
 116   "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTIxWhcNMDgwNDE3MTMyOTIxWjA3MRsw\n"
 117   "GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n"
 118   "Lm9yZzCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA17pcr6MM8C6pJ1aqU46o63+B\n"
 119   "dUxrmL5K6rce+EvDasTaDQC46kwTHzYWk95y78akXrJutsoKiFV1kJbtple8DDt2\n"
 120   "DZcevensf9Op7PuFZKBroEjOd35znDET/z3IrqVgbtm2jFqab7a+n2q9p/CgMyf1\n"
 121   "tx2S5Zacc1LWn9bIjrECAwEAAaOBkzCBkDAMBgNVHRMBAf8EAjAAMBoGA1UdEQQT\n"
 122   "MBGCD3Rlc3QuZ251dGxzLm9yZzATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8B\n"
 123   "Af8EBQMDB6AAMB0GA1UdDgQWBBTrx0Vu5fglyoyNgw106YbU3VW0dTAfBgNVHSME\n"
 124   "GDAWgBTpPBz7rZJu5gakViyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAaFEPTt+7\n"
 125   "bzvBuOf7+QmeQcn29kT6Bsyh1RHJXf8KTk5QRfwp6ogbp94JQWcNQ/S7YDFHglD1\n"
 126   "AwUNBRXwd3riUsMnsxgeSDxYBfJYbDLeohNBsqaPDJb7XailWbMQKfAbFQ8cnOxg\n"
 127   "rOKLUQRWJ0K3HyXRMhbqjdLIaQiCvQLuizo=\n" "-----END CERTIFICATE-----\n";
 128
 129 const gnutls_datum_t server_cert = { server_cert_pem,
 130   sizeof (server_cert_pem)
 131 };
 132
 133 static unsigned char server_key_pem[] =
 134   "-----BEGIN RSA PRIVATE KEY-----\n"
 135   "MIICXAIBAAKBgQDXulyvowzwLqknVqpTjqjrf4F1TGuYvkrqtx74S8NqxNoNALjq\n"
 136   "TBMfNhaT3nLvxqResm62ygqIVXWQlu2mV7wMO3YNlx696ex/06ns+4VkoGugSM53\n"
 137   "fnOcMRP/PciupWBu2baMWppvtr6far2n8KAzJ/W3HZLllpxzUtaf1siOsQIDAQAB\n"
 138   "AoGAYAFyKkAYC/PYF8e7+X+tsVCHXppp8AoP8TEZuUqOZz/AArVlle/ROrypg5kl\n"
 139   "8YunrvUdzH9R/KZ7saNZlAPLjZyFG9beL/am6Ai7q7Ma5HMqjGU8kTEGwD7K+lbG\n"
 140   "iomokKMOl+kkbY/2sI5Czmbm+/PqLXOjtVc5RAsdbgvtmvkCQQDdV5QuU8jap8Hs\n"
 141   "Eodv/tLJ2z4+SKCV2k/7FXSKWe0vlrq0cl2qZfoTUYRnKRBcWxc9o92DxK44wgPi\n"
 142   "oMQS+O7fAkEA+YG+K9e60sj1K4NYbMPAbYILbZxORDecvP8lcphvwkOVUqbmxOGh\n"
 143   "XRmTZUuhBrJhJKKf6u7gf3KWlPl6ShKEbwJASC118cF6nurTjuLf7YKARDjNTEws\n"
 144   "qZEeQbdWYINAmCMj0RH2P0mvybrsXSOD5UoDAyO7aWuqkHGcCLv6FGG+qwJAOVqq\n"
 145   "tXdUucl6GjOKKw5geIvRRrQMhb/m5scb+5iw8A4LEEHPgGiBaF5NtJZLALgWfo5n\n"
 146   "hmC8+G8F0F78znQtPwJBANexu+Tg5KfOnzSILJMo3oXiXhf5PqXIDmbN0BKyCKAQ\n"
 147   "LfkcEcUbVfmDaHpvzwY9VEaoMOKVLitETXdNSxVpvWM=\n"
 148   "-----END RSA PRIVATE KEY-----\n";
 149
 150 const gnutls_datum_t server_key = { server_key_pem,
 151   sizeof (server_key_pem)
 152 };
 153
 154 int
 155 main (int argc, char *argv[])
 156 {
 157   int debug_level = argc - 1;
 158   int exit_code = EXIT_SUCCESS;
 159   /* Server stuff. */
 160   gnutls_certificate_credentials_t serverx509cred;
 161   gnutls_session_t server;
 162   int sret = GNUTLS_E_AGAIN;
 163   /* Client stuff. */
 164   gnutls_certificate_credentials_t clientx509cred;
 165   gnutls_session_t client;
 166   int cret = GNUTLS_E_AGAIN;
 167
 168   /* General init. */
 169   gnutls_global_init ();
 170   gnutls_global_set_log_function (tls_log_func);
 171   gnutls_global_set_log_level (debug_level);
 172
 173   /* Init server */
 174   gnutls_certificate_allocate_credentials (&serverx509cred);
 175   gnutls_certificate_set_x509_key_mem (serverx509cred,
 176                                        &server_cert, &server_key,
 177                                        GNUTLS_X509_FMT_PEM);
 178   gnutls_init (&server, GNUTLS_SERVER);
 179   gnutls_credentials_set (server, GNUTLS_CRD_CERTIFICATE, serverx509cred);
 180   gnutls_priority_set_direct (server, "NORMAL", NULL);
 181   gnutls_transport_set_push_function (server, server_push);
 182   gnutls_transport_set_pull_function (server, server_pull);
 183
 184   /* Init client */
 185   gnutls_certificate_allocate_credentials (&clientx509cred);
 186   gnutls_init (&client, GNUTLS_CLIENT);
 187   gnutls_credentials_set (client, GNUTLS_CRD_CERTIFICATE, clientx509cred);
 188   gnutls_priority_set_direct (client, "NORMAL", NULL);
 189   gnutls_transport_set_push_function (client, client_push);
 190   gnutls_transport_set_pull_function (client, client_pull);
 191
 192   do
 193     {
 194       static int max_iter = 0;
 195       if (max_iter++ > 10)
 196         abort ();
 197
 198       if (cret == GNUTLS_E_AGAIN)
 199         {
 200           cret = gnutls_handshake (client);
 201           if (debug_level > 0)
 202             {
 203               tls_log_func (0, "gnutls_handshake (client)...\n");
 204               tls_log_func (0, gnutls_strerror (cret));
 205               tls_log_func (0, "\n");
 206             }
 207         }
 208
 209       if (sret == GNUTLS_E_AGAIN)
 210         {
 211           sret = gnutls_handshake (server);
 212           if (debug_level > 0)
 213             {
 214               tls_log_func (0, "gnutls_handshake (server)...\n");
 215               tls_log_func (0, gnutls_strerror (sret));
 216               tls_log_func (0, "\n");
 217             }
 218         }
 219     }
 220   while (
 221           /* Not done: */
 222           !(cret == GNUTLS_E_SUCCESS && sret == GNUTLS_E_SUCCESS)
 223           /* No error: */
 224           && (cret == GNUTLS_E_AGAIN || sret == GNUTLS_E_AGAIN));
 225
 226   if (cret != GNUTLS_E_SUCCESS && sret != GNUTLS_E_SUCCESS)
 227     exit_code = EXIT_FAILURE;
 228
 229   sret = gnutls_rehandshake (server);
 230   if (debug_level > 0)
 231     {
 232       tls_log_func (0, "gnutls_rehandshake (server)...\n");
 233       tls_log_func (0, gnutls_strerror (sret));
 234       tls_log_func (0, "\n");
 235     }
 236
 237   {
 238     ssize_t n;
 239     char b[1];
 240     n = gnutls_record_recv (client, b, 1);
 241     if (n != GNUTLS_E_REHANDSHAKE)
 242       abort ();
 243   }
 244
 245   cret = GNUTLS_E_AGAIN;
 246   sret = GNUTLS_E_AGAIN;
 247
 248   do
 249     {
 250       static int max_iter = 0;
 251       if (max_iter++ > 10)
 252         abort ();
 253
 254       if (cret == GNUTLS_E_AGAIN)
 255         {
 256           cret = gnutls_handshake (client);
 257           if (debug_level > 0)
 258             {
 259               tls_log_func (0, "second gnutls_handshake (client)...\n");
 260               tls_log_func (0, gnutls_strerror (cret));
 261               tls_log_func (0, "\n");
 262             }
 263         }
 264
 265       if (sret == GNUTLS_E_AGAIN)
 266         {
 267           sret = gnutls_handshake (server);
 268           if (debug_level > 0)
 269             {
 270               tls_log_func (0, "second gnutls_handshake (server)...\n");
 271               tls_log_func (0, gnutls_strerror (sret));
 272               tls_log_func (0, "\n");
 273             }
 274         }
 275     }
 276   while (
 277           /* Not done: */
 278           !(cret == GNUTLS_E_SUCCESS && sret == GNUTLS_E_SUCCESS)
 279           /* No error: */
 280           && (cret == GNUTLS_E_AGAIN || sret == GNUTLS_E_AGAIN));
 281
 282   if (cret != GNUTLS_E_SUCCESS && sret != GNUTLS_E_SUCCESS)
 283     exit_code = 1;
 284
 285   gnutls_bye (client, GNUTLS_SHUT_RDWR);
 286   gnutls_bye (server, GNUTLS_SHUT_RDWR);
 287
 288   gnutls_deinit (client);
 289   gnutls_deinit (server);
 290
 291   free (to_server);
 292   free (to_client);
 293
 294   gnutls_certificate_free_credentials (serverx509cred);
 295
 296   gnutls_global_deinit ();
 297
 298   if (debug_level > 0)
 299     {
 300       if (exit_code == 0)
 301         puts ("Self-test successful");
 302       else
 303         puts ("Self-test failed");
 304     }
 305
 306   return exit_code;
 307 }