tests/mini-cert-status.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 #include "utils.h"
  51
  52 /* This program tests whether the GNUTLS_CERT_* flags
  53  * work as expected.
  54  */
  55
  56 static void server_log_func(int level, const char *str)
  57 {
  58 //  fprintf (stderr, "server|<%d>| %s", level, str);
  59 }
  60
  61 static void client_log_func(int level, const char *str)
  62 {
  63         fprintf(stderr, "client|<%d>| %s", level, str);
  64 }
  65
  66 static unsigned char server_cert_pem[] =
  67     "-----BEGIN CERTIFICATE-----\n"
  68     "MIICVjCCAcGgAwIBAgIERiYdMTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
  69     "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTIxWhcNMDgwNDE3MTMyOTIxWjA3MRsw\n"
  70     "GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n"
  71     "Lm9yZzCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA17pcr6MM8C6pJ1aqU46o63+B\n"
  72     "dUxrmL5K6rce+EvDasTaDQC46kwTHzYWk95y78akXrJutsoKiFV1kJbtple8DDt2\n"
  73     "DZcevensf9Op7PuFZKBroEjOd35znDET/z3IrqVgbtm2jFqab7a+n2q9p/CgMyf1\n"
  74     "tx2S5Zacc1LWn9bIjrECAwEAAaOBkzCBkDAMBgNVHRMBAf8EAjAAMBoGA1UdEQQT\n"
  75     "MBGCD3Rlc3QuZ251dGxzLm9yZzATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8B\n"
  76     "Af8EBQMDB6AAMB0GA1UdDgQWBBTrx0Vu5fglyoyNgw106YbU3VW0dTAfBgNVHSME\n"
  77     "GDAWgBTpPBz7rZJu5gakViyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAaFEPTt+7\n"
  78     "bzvBuOf7+QmeQcn29kT6Bsyh1RHJXf8KTk5QRfwp6ogbp94JQWcNQ/S7YDFHglD1\n"
  79     "AwUNBRXwd3riUsMnsxgeSDxYBfJYbDLeohNBsqaPDJb7XailWbMQKfAbFQ8cnOxg\n"
  80     "rOKLUQRWJ0K3HyXRMhbqjdLIaQiCvQLuizo=\n" "-----END CERTIFICATE-----\n";
  81
  82 const gnutls_datum_t server_cert = { server_cert_pem,
  83         sizeof(server_cert_pem)
  84 };
  85
  86 static unsigned char server_key_pem[] =
  87     "-----BEGIN RSA PRIVATE KEY-----\n"
  88     "MIICXAIBAAKBgQDXulyvowzwLqknVqpTjqjrf4F1TGuYvkrqtx74S8NqxNoNALjq\n"
  89     "TBMfNhaT3nLvxqResm62ygqIVXWQlu2mV7wMO3YNlx696ex/06ns+4VkoGugSM53\n"
  90     "fnOcMRP/PciupWBu2baMWppvtr6far2n8KAzJ/W3HZLllpxzUtaf1siOsQIDAQAB\n"
  91     "AoGAYAFyKkAYC/PYF8e7+X+tsVCHXppp8AoP8TEZuUqOZz/AArVlle/ROrypg5kl\n"
  92     "8YunrvUdzH9R/KZ7saNZlAPLjZyFG9beL/am6Ai7q7Ma5HMqjGU8kTEGwD7K+lbG\n"
  93     "iomokKMOl+kkbY/2sI5Czmbm+/PqLXOjtVc5RAsdbgvtmvkCQQDdV5QuU8jap8Hs\n"
  94     "Eodv/tLJ2z4+SKCV2k/7FXSKWe0vlrq0cl2qZfoTUYRnKRBcWxc9o92DxK44wgPi\n"
  95     "oMQS+O7fAkEA+YG+K9e60sj1K4NYbMPAbYILbZxORDecvP8lcphvwkOVUqbmxOGh\n"
  96     "XRmTZUuhBrJhJKKf6u7gf3KWlPl6ShKEbwJASC118cF6nurTjuLf7YKARDjNTEws\n"
  97     "qZEeQbdWYINAmCMj0RH2P0mvybrsXSOD5UoDAyO7aWuqkHGcCLv6FGG+qwJAOVqq\n"
  98     "tXdUucl6GjOKKw5geIvRRrQMhb/m5scb+5iw8A4LEEHPgGiBaF5NtJZLALgWfo5n\n"
  99     "hmC8+G8F0F78znQtPwJBANexu+Tg5KfOnzSILJMo3oXiXhf5PqXIDmbN0BKyCKAQ\n"
 100     "LfkcEcUbVfmDaHpvzwY9VEaoMOKVLitETXdNSxVpvWM=\n"
 101     "-----END RSA PRIVATE KEY-----\n";
 102
 103 const gnutls_datum_t server_key = { server_key_pem,
 104         sizeof(server_key_pem)
 105 };
 106
 107
 108 /* A very basic TLS client, with anonymous authentication.
 109  */
 110
 111 #define MAX_BUF 1024
 112
 113 static void client(int fd)
 114 {
 115         int ret;
 116         const char *p;
 117         gnutls_certificate_credentials_t x509_cred;
 118         gnutls_session_t session;
 119         /* Need to enable anonymous KX specifically. */
 120
 121         global_init();
 122
 123         if (debug) {
 124                 gnutls_global_set_log_function(client_log_func);
 125                 gnutls_global_set_log_level(7);
 126         }
 127
 128         gnutls_certificate_allocate_credentials(&x509_cred);
 129
 130         /* Initialize TLS session
 131          */
 132         gnutls_init(&session, GNUTLS_CLIENT);
 133
 134         /* Use default priorities */
 135         ret =
 136             gnutls_priority_set_direct(session,
 137                                        "NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA",
 138                                        &p);
 139         if (ret < 0) {
 140                 fail("error in setting priority: %s\n", p);
 141                 exit(1);
 142         }
 143
 144         /* put the anonymous credentials to the current session
 145          */
 146         gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
 147
 148         gnutls_transport_set_int(session, fd);
 149
 150         /* Perform the TLS handshake
 151          */
 152         do {
 153                 ret = gnutls_handshake(session);
 154         }
 155         while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
 156
 157         if (ret < 0) {
 158                 if (debug) {
 159                         fail("client: Handshake failed\n");
 160                         gnutls_perror(ret);
 161                 }
 162                 exit(1);
 163         } else {
 164                 if (debug)
 165                         success("client: Handshake was completed\n");
 166         }
 167
 168         if (debug)
 169                 success("client: TLS version is: %s\n",
 170                         gnutls_protocol_get_name
 171                         (gnutls_protocol_get_version(session)));
 172
 173         close(fd);
 174
 175         gnutls_deinit(session);
 176
 177         gnutls_certificate_free_credentials(x509_cred);
 178
 179         gnutls_global_deinit();
 180 }
 181
 182
 183 /* These are global */
 184 pid_t child;
 185
 186 static void server(int fd, unsigned status, int expected)
 187 {
 188         int ret;
 189         char buffer[MAX_BUF + 1];
 190         gnutls_session_t session;
 191         gnutls_certificate_credentials_t x509_cred;
 192
 193         /* this must be called once in the program
 194          */
 195         global_init();
 196         memset(buffer, 0, sizeof(buffer));
 197
 198         gnutls_init(&session, GNUTLS_SERVER);
 199
 200         /* avoid calling all the priority functions, since the defaults
 201          * are adequate.
 202          */
 203         gnutls_priority_set_direct(session,
 204                                    "NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA",
 205                                    NULL);
 206
 207         if (debug) {
 208                 gnutls_global_set_log_function(server_log_func);
 209                 gnutls_global_set_log_level(4711);
 210         }
 211
 212         gnutls_certificate_allocate_credentials(&x509_cred);
 213         gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert,
 214                                             &server_key,
 215                                             GNUTLS_X509_FMT_PEM);
 216
 217         gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);
 218
 219         gnutls_transport_set_int(session, fd);
 220         gnutls_certificate_server_set_request(session, status);
 221
 222         do {
 223                 ret = gnutls_handshake(session);
 224         }
 225         while (ret < 0 && gnutls_error_is_fatal(ret) == 0);
 226
 227         if (ret == expected) {
 228                 if (debug)
 229                         success
 230                             ("server: Handshake finished as expected\n");
 231                 goto finish;
 232         } else {
 233                 fail("expected %d, handshake returned %d\n", expected,
 234                      ret);
 235         }
 236
 237         if (debug)
 238                 success("server: Handshake was completed\n");
 239
 240         if (debug)
 241                 success("server: TLS version is: %s\n",
 242                         gnutls_protocol_get_name
 243                         (gnutls_protocol_get_version(session)));
 244       finish:
 245         close(fd);
 246         gnutls_deinit(session);
 247
 248         gnutls_certificate_free_credentials(x509_cred);
 249
 250         gnutls_global_deinit();
 251
 252         if (debug)
 253                 success("server: finished\n");
 254 }
 255
 256 static void start(unsigned status, int expected)
 257 {
 258         int fd[2];
 259         int ret;
 260
 261         ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd);
 262         if (ret < 0) {
 263                 perror("socketpair");
 264                 exit(1);
 265         }
 266
 267         child = fork();
 268         if (child < 0) {
 269                 perror("fork");
 270                 fail("fork");
 271                 exit(1);
 272         }
 273
 274         if (child) {
 275                 /* parent */
 276                 close(fd[1]);
 277                 server(fd[0], status, expected);
 278                 waitpid(-1, NULL, 0);
 279                 //kill(child, SIGTERM);
 280         } else {
 281                 close(fd[0]);
 282                 client(fd[1]);
 283                 exit(0);
 284         }
 285 }
 286
 287 static void ch_handler(int sig)
 288 {
 289         int status = 0;
 290
 291         waitpid(-1, &status, 0);
 292         if (WEXITSTATUS(status) != 0 ||
 293             (WIFSIGNALED(status) && WTERMSIG(status) == SIGSEGV)) {
 294                 if (WIFSIGNALED(status))
 295                         fail("Child died with sigsegv\n");
 296         }
 297         return;
 298 }
 299
 300 void doit(void)
 301 {
 302         signal(SIGCHLD, ch_handler);
 303         signal(SIGPIPE, SIG_IGN);
 304
 305         start(GNUTLS_CERT_IGNORE, 0);
 306         start(GNUTLS_CERT_REQUEST, 0);
 307         start(GNUTLS_CERT_REQUIRE, GNUTLS_E_NO_CERTIFICATE_FOUND);
 308 }
 309
 310 #endif                          /* _WIN32 */