tests/long-session-id.c

   1 /*
   2  * Copyright (C) 2012 Free Software Foundation, 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
  30 #if defined(_WIN32)
  31
  32 int main()
  33 {
  34         exit(77);
  35 }
  36
  37 #else
  38
  39 #include <string.h>
  40 #include <sys/types.h>
  41 #include <netinet/in.h>
  42 #include <sys/socket.h>
  43 #include <sys/wait.h>
  44 #include <arpa/inet.h>
  45 #include <unistd.h>
  46 #include <gnutls/gnutls.h>
  47 #include <gnutls/dtls.h>
  48 #include <signal.h>
  49
  50 static int debug = 0;
  51 static void terminate(int);
  52
  53 /* This program tests the robustness of record
  54  * decoding.
  55  */
  56
  57 static void client_log_func(int level, const char *str)
  58 {
  59         fprintf(stderr, "client|<%d>| %s", level, str);
  60 }
  61
  62 static unsigned char server_cert_pem[] =
  63     "-----BEGIN CERTIFICATE-----\n"
  64     "MIICVjCCAcGgAwIBAgIERiYdMTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
  65     "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTIxWhcNMDgwNDE3MTMyOTIxWjA3MRsw\n"
  66     "GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n"
  67     "Lm9yZzCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA17pcr6MM8C6pJ1aqU46o63+B\n"
  68     "dUxrmL5K6rce+EvDasTaDQC46kwTHzYWk95y78akXrJutsoKiFV1kJbtple8DDt2\n"
  69     "DZcevensf9Op7PuFZKBroEjOd35znDET/z3IrqVgbtm2jFqab7a+n2q9p/CgMyf1\n"
  70     "tx2S5Zacc1LWn9bIjrECAwEAAaOBkzCBkDAMBgNVHRMBAf8EAjAAMBoGA1UdEQQT\n"
  71     "MBGCD3Rlc3QuZ251dGxzLm9yZzATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8B\n"
  72     "Af8EBQMDB6AAMB0GA1UdDgQWBBTrx0Vu5fglyoyNgw106YbU3VW0dTAfBgNVHSME\n"
  73     "GDAWgBTpPBz7rZJu5gakViyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAaFEPTt+7\n"
  74     "bzvBuOf7+QmeQcn29kT6Bsyh1RHJXf8KTk5QRfwp6ogbp94JQWcNQ/S7YDFHglD1\n"
  75     "AwUNBRXwd3riUsMnsxgeSDxYBfJYbDLeohNBsqaPDJb7XailWbMQKfAbFQ8cnOxg\n"
  76     "rOKLUQRWJ0K3HyXRMhbqjdLIaQiCvQLuizo=\n" "-----END CERTIFICATE-----\n";
  77
  78 const gnutls_datum_t server_cert = { server_cert_pem,
  79         sizeof(server_cert_pem)
  80 };
  81
  82 static unsigned char server_key_pem[] =
  83     "-----BEGIN RSA PRIVATE KEY-----\n"
  84     "MIICXAIBAAKBgQDXulyvowzwLqknVqpTjqjrf4F1TGuYvkrqtx74S8NqxNoNALjq\n"
  85     "TBMfNhaT3nLvxqResm62ygqIVXWQlu2mV7wMO3YNlx696ex/06ns+4VkoGugSM53\n"
  86     "fnOcMRP/PciupWBu2baMWppvtr6far2n8KAzJ/W3HZLllpxzUtaf1siOsQIDAQAB\n"
  87     "AoGAYAFyKkAYC/PYF8e7+X+tsVCHXppp8AoP8TEZuUqOZz/AArVlle/ROrypg5kl\n"
  88     "8YunrvUdzH9R/KZ7saNZlAPLjZyFG9beL/am6Ai7q7Ma5HMqjGU8kTEGwD7K+lbG\n"
  89     "iomokKMOl+kkbY/2sI5Czmbm+/PqLXOjtVc5RAsdbgvtmvkCQQDdV5QuU8jap8Hs\n"
  90     "Eodv/tLJ2z4+SKCV2k/7FXSKWe0vlrq0cl2qZfoTUYRnKRBcWxc9o92DxK44wgPi\n"
  91     "oMQS+O7fAkEA+YG+K9e60sj1K4NYbMPAbYILbZxORDecvP8lcphvwkOVUqbmxOGh\n"
  92     "XRmTZUuhBrJhJKKf6u7gf3KWlPl6ShKEbwJASC118cF6nurTjuLf7YKARDjNTEws\n"
  93     "qZEeQbdWYINAmCMj0RH2P0mvybrsXSOD5UoDAyO7aWuqkHGcCLv6FGG+qwJAOVqq\n"
  94     "tXdUucl6GjOKKw5geIvRRrQMhb/m5scb+5iw8A4LEEHPgGiBaF5NtJZLALgWfo5n\n"
  95     "hmC8+G8F0F78znQtPwJBANexu+Tg5KfOnzSILJMo3oXiXhf5PqXIDmbN0BKyCKAQ\n"
  96     "LfkcEcUbVfmDaHpvzwY9VEaoMOKVLitETXdNSxVpvWM=\n"
  97     "-----END RSA PRIVATE KEY-----\n";
  98
  99 const gnutls_datum_t server_key = { server_key_pem,
 100         sizeof(server_key_pem)
 101 };
 102
 103
 104 /* A very basic TLS client, with anonymous authentication.
 105  */
 106
 107 static void client(int fd, const char *prio)
 108 {
 109         int ret;
 110         gnutls_anon_client_credentials_t anoncred;
 111         gnutls_certificate_credentials_t x509_cred;
 112         gnutls_session_t session;
 113         /* Need to enable anonymous KX specifically. */
 114
 115         gnutls_global_init();
 116
 117         if (debug) {
 118                 gnutls_global_set_log_function(client_log_func);
 119                 gnutls_global_set_log_level(7);
 120         }
 121
 122         gnutls_anon_allocate_client_credentials(&anoncred);
 123         gnutls_certificate_allocate_credentials(&x509_cred);
 124
 125         /* Initialize TLS session
 126          */
 127         gnutls_init(&session, GNUTLS_CLIENT);
 128
 129         /* Use default priorities */
 130         gnutls_priority_set_direct(session, prio, NULL);
 131
 132         /* put the anonymous credentials to the current session
 133          */
 134         gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred);
 135         gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
 136
 137         gnutls_transport_set_int(session, fd);
 138
 139         /* Perform the TLS handshake
 140          */
 141         do {
 142                 ret = gnutls_handshake(session);
 143         }
 144         while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
 145
 146         if (gnutls_ecc_curve_get(session) == 0xffffffff) {
 147                 fprintf(stderr, "memory was overwritten\n");
 148                 kill(getpid(), SIGSEGV);
 149         }
 150
 151         if (ret < 0) {
 152                 fprintf(stderr, "client: Handshake failed (expected)\n");
 153                 gnutls_perror(ret);
 154                 exit(0);
 155         } else {
 156                 if (debug)
 157                         fprintf(stderr, "client: Handshake was completed\n");
 158         }
 159
 160         close(fd);
 161
 162         gnutls_deinit(session);
 163
 164         gnutls_anon_free_client_credentials(anoncred);
 165         gnutls_certificate_free_credentials(x509_cred);
 166
 167         gnutls_global_deinit();
 168 }
 169
 170
 171 /* These are global */
 172 pid_t child;
 173
 174 static void terminate(int ret)
 175 {
 176         kill(child, SIGTERM);
 177         exit(ret);
 178 }
 179
 180 static void server(int fd, const char *prio)
 181 {
 182         int ret;
 183         uint8_t id[255];
 184         uint8_t buffer[] = "\x16\x03\x00\x01\x25"
 185                 "\x02\x00\x01\x21"
 186                 "\x03\x00"/*Server Version */
 187                 /*Random*/"\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00\x00\x00\x01\x00\x00"
 188                 /*SessionID*/"\xfe";
 189
 190         ret = read(fd, id, sizeof(id));
 191         if (ret < 0) {
 192                 abort();
 193         }
 194
 195         ret = write(fd, buffer, sizeof(buffer));
 196         if (ret < 0) {
 197                 return;
 198         }
 199
 200         memset(id, 0xff, sizeof(id));
 201         ret = write(fd, id, sizeof(id));
 202         if (ret < 0) {
 203                 return;
 204         }
 205
 206         memset(id, 0xff, sizeof(id));
 207         ret = write(fd, id, sizeof(id));
 208         if (ret < 0) {
 209                 return;
 210         }
 211         sleep(3);
 212
 213         return;
 214 }
 215
 216 static void start(const char *prio)
 217 {
 218         int fd[2];
 219         int ret;
 220
 221         ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd);
 222         if (ret < 0) {
 223                 perror("socketpair");
 224                 exit(1);
 225         }
 226
 227         child = fork();
 228         if (child < 0) {
 229                 perror("fork");
 230                 exit(1);
 231         }
 232
 233         if (child) {
 234                 /* parent */
 235                 close(fd[1]);
 236                 server(fd[0], prio);
 237                 kill(child, SIGTERM);
 238         } else {
 239                 close(fd[0]);
 240                 client(fd[1], prio);
 241                 exit(0);
 242         }
 243 }
 244
 245 static void ch_handler(int sig)
 246 {
 247         int status, ret = 0;
 248         wait(&status);
 249         if (WEXITSTATUS(status) != 0 ||
 250             (WIFSIGNALED(status) && WTERMSIG(status) == SIGSEGV)) {
 251                 if (WIFSIGNALED(status)) {
 252                         fprintf(stderr, "Child died with sigsegv\n");
 253                         ret = 1;
 254                 } else {
 255                         fprintf(stderr, "Child died with status %d\n",
 256                              WEXITSTATUS(status));
 257                 }
 258                 terminate(ret);
 259         }
 260         return;
 261 }
 262
 263 int main(int argc, char **argv)
 264 {
 265         signal(SIGCHLD, ch_handler);
 266         signal(SIGPIPE, SIG_IGN);
 267
 268         if (argc > 1)
 269                 debug = 1;
 270
 271         start("NORMAL");
 272         return 0;
 273 }
 274
 275 #endif                          /* _WIN32 */