test/clienthellotest.c

   1 /* Written by Matt Caswell for the OpenSSL Project */
   2 /* ====================================================================
   3  * Copyright (c) 1998-2015 The OpenSSL Project.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the
  15  *    distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this
  18  *    software must display the following acknowledgment:
  19  *    "This product includes software developed by the OpenSSL Project
  20  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  21  *
  22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  23  *    endorse or promote products derived from this software without
  24  *    prior written permission. For written permission, please contact
  25  *    openssl-core@openssl.org.
  26  *
  27  * 5. Products derived from this software may not be called "OpenSSL"
  28  *    nor may "OpenSSL" appear in their names without prior written
  29  *    permission of the OpenSSL Project.
  30  *
  31  * 6. Redistributions of any form whatsoever must retain the following
  32  *    acknowledgment:
  33  *    "This product includes software developed by the OpenSSL Project
  34  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  47  * OF THE POSSIBILITY OF SUCH DAMAGE.
  48  * ====================================================================
  49  *
  50  * This product includes cryptographic software written by Eric Young
  51  * (eay@cryptsoft.com).  This product includes software written by Tim
  52  * Hudson (tjh@cryptsoft.com).
  53  *
  54  */
  55
  56 #include <string.h>
  57
  58 #include <openssl/bio.h>
  59 #include <openssl/crypto.h>
  60 #include <openssl/evp.h>
  61 #include <openssl/ssl.h>
  62 #include <openssl/err.h>
  63
  64
  65 #define CLIENT_VERSION_LEN      2
  66 #define SESSION_ID_LEN_LEN      1
  67 #define CIPHERS_LEN_LEN         2
  68 #define COMPRESSION_LEN_LEN     1
  69 #define EXTENSIONS_LEN_LEN      2
  70 #define EXTENSION_TYPE_LEN      2
  71 #define EXTENSION_SIZE_LEN      2
  72
  73
  74 #define TOTAL_NUM_TESTS                         2
  75
  76 /*
  77  * Test that explicitly setting ticket data results in it appearing in the
  78  * ClientHello for TLS1.2
  79  */
  80 #define TEST_SET_SESSION_TICK_DATA_TLS_1_2      0
  81
  82 /*
  83  * Test that explicitly setting ticket data results in it appearing in the
  84  * ClientHello for a negotiated SSL/TLS version
  85  */
  86 #define TEST_SET_SESSION_TICK_DATA_VER_NEG      1
  87
  88 int main(int argc, char *argv[])
  89 {
  90     SSL_CTX *ctx;
  91     SSL *con;
  92     BIO *rbio;
  93     BIO *wbio;
  94     BIO *err;
  95     long len;
  96     unsigned char *data;
  97     unsigned char *dataend;
  98     char *dummytick = "Hello World!";
  99     unsigned int tmplen;
 100     unsigned int type;
 101     unsigned int size;
 102     int testresult = 0;
 103     int currtest = 0;
 104
 105     SSL_library_init();
 106     SSL_load_error_strings();
 107
 108     err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
 109
 110     CRYPTO_malloc_debug_init();
 111     CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
 112     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 113
 114     /*
 115      * For each test set up an SSL_CTX and SSL and see what ClientHello gets
 116      * produced when we try to connect
 117      */
 118     for (; currtest < TOTAL_NUM_TESTS; currtest++) {
 119         testresult = 0;
 120         if (currtest == TEST_SET_SESSION_TICK_DATA_TLS_1_2) {
 121             ctx = SSL_CTX_new(TLSv1_2_method());
 122         } else {
 123             ctx = SSL_CTX_new(TLS_method());
 124         }
 125         con = SSL_new(ctx);
 126
 127         rbio = BIO_new(BIO_s_mem());
 128         wbio = BIO_new(BIO_s_mem());
 129         SSL_set_bio(con, rbio, wbio);
 130         SSL_set_connect_state(con);
 131
 132         if (currtest == TEST_SET_SESSION_TICK_DATA_TLS_1_2
 133                 || currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
 134             if (!SSL_set_session_ticket_ext(con, dummytick, strlen(dummytick)))
 135                 goto end;
 136         }
 137
 138         if (SSL_connect(con) > 0) {
 139             /* This shouldn't succeed because we don't have a server! */
 140             goto end;
 141         }
 142
 143         len = BIO_get_mem_data(wbio, (char **)&data);
 144         dataend = data + len;
 145
 146         /* Skip the record header */
 147         data += SSL3_RT_HEADER_LENGTH;
 148         /* Skip the handshake message header */
 149         data += SSL3_HM_HEADER_LENGTH;
 150         /* Skip client version and random */
 151         data += CLIENT_VERSION_LEN + SSL3_RANDOM_SIZE;
 152         if (data + SESSION_ID_LEN_LEN > dataend)
 153             goto end;
 154         /* Skip session id */
 155         tmplen = *data;
 156         data += SESSION_ID_LEN_LEN + tmplen;
 157         if (data + CIPHERS_LEN_LEN > dataend)
 158             goto end;
 159         /* Skip ciphers */
 160         tmplen = ((*data) << 8) | *(data + 1);
 161         data += CIPHERS_LEN_LEN + tmplen;
 162         if (data + COMPRESSION_LEN_LEN > dataend)
 163             goto end;
 164         /* Skip compression */
 165         tmplen = *data;
 166         data += COMPRESSION_LEN_LEN + tmplen;
 167         if (data + EXTENSIONS_LEN_LEN > dataend)
 168             goto end;
 169         /* Extensions len */
 170         tmplen = ((*data) << 8) | *(data + 1);
 171         data += EXTENSIONS_LEN_LEN;
 172         if (data + tmplen > dataend)
 173             goto end;
 174
 175         /* Loop through all extensions */
 176         while (tmplen > EXTENSION_TYPE_LEN + EXTENSION_SIZE_LEN) {
 177             type = ((*data) << 8) | *(data + 1);
 178             data += EXTENSION_TYPE_LEN;
 179             size = ((*data) << 8) | *(data + 1);
 180             data += EXTENSION_SIZE_LEN;
 181             if (data + size > dataend)
 182                 goto end;
 183
 184             if (type == TLSEXT_TYPE_session_ticket) {
 185                 if (currtest == TEST_SET_SESSION_TICK_DATA_TLS_1_2
 186                         || currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
 187                     if (size == strlen(dummytick)
 188                             && memcmp(data, dummytick, size) == 0) {
 189                         /* Ticket data is as we expected */
 190                         testresult = 1;
 191                     } else {
 192                         printf("Received session ticket is not as expected\n");
 193                     }
 194                     break;
 195                 }
 196             }
 197
 198             tmplen -= EXTENSION_TYPE_LEN + EXTENSION_SIZE_LEN + size;
 199             data += size;
 200         }
 201
 202  end:
 203         SSL_free(con);
 204         SSL_CTX_free(ctx);
 205         if (!testresult) {
 206             printf("ClientHello test: FAILED (Test %d)\n", currtest);
 207             break;
 208         }
 209     }
 210
 211     ERR_free_strings();
 212     ERR_remove_thread_state(NULL);
 213     EVP_cleanup();
 214     CRYPTO_cleanup_all_ex_data();
 215     CRYPTO_mem_leaks(err);
 216
 217     return testresult?0:1;
 218 }