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_set_mem_debug(1);
 111     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 112
 113     /*
 114      * For each test set up an SSL_CTX and SSL and see what ClientHello gets
 115      * produced when we try to connect
 116      */
 117     for (; currtest < TOTAL_NUM_TESTS; currtest++) {
 118         testresult = 0;
 119         if (currtest == TEST_SET_SESSION_TICK_DATA_TLS_1_2) {
 120             ctx = SSL_CTX_new(TLSv1_2_method());
 121         } else {
 122             ctx = SSL_CTX_new(TLS_method());
 123         }
 124         con = SSL_new(ctx);
 125
 126         rbio = BIO_new(BIO_s_mem());
 127         wbio = BIO_new(BIO_s_mem());
 128         SSL_set_bio(con, rbio, wbio);
 129         SSL_set_connect_state(con);
 130
 131         if (currtest == TEST_SET_SESSION_TICK_DATA_TLS_1_2
 132                 || currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
 133             if (!SSL_set_session_ticket_ext(con, dummytick, strlen(dummytick)))
 134                 goto end;
 135         }
 136
 137         if (SSL_connect(con) > 0) {
 138             /* This shouldn't succeed because we don't have a server! */
 139             goto end;
 140         }
 141
 142         len = BIO_get_mem_data(wbio, (char **)&data);
 143         dataend = data + len;
 144
 145         /* Skip the record header */
 146         data += SSL3_RT_HEADER_LENGTH;
 147         /* Skip the handshake message header */
 148         data += SSL3_HM_HEADER_LENGTH;
 149         /* Skip client version and random */
 150         data += CLIENT_VERSION_LEN + SSL3_RANDOM_SIZE;
 151         if (data + SESSION_ID_LEN_LEN > dataend)
 152             goto end;
 153         /* Skip session id */
 154         tmplen = *data;
 155         data += SESSION_ID_LEN_LEN + tmplen;
 156         if (data + CIPHERS_LEN_LEN > dataend)
 157             goto end;
 158         /* Skip ciphers */
 159         tmplen = ((*data) << 8) | *(data + 1);
 160         data += CIPHERS_LEN_LEN + tmplen;
 161         if (data + COMPRESSION_LEN_LEN > dataend)
 162             goto end;
 163         /* Skip compression */
 164         tmplen = *data;
 165         data += COMPRESSION_LEN_LEN + tmplen;
 166         if (data + EXTENSIONS_LEN_LEN > dataend)
 167             goto end;
 168         /* Extensions len */
 169         tmplen = ((*data) << 8) | *(data + 1);
 170         data += EXTENSIONS_LEN_LEN;
 171         if (data + tmplen > dataend)
 172             goto end;
 173
 174         /* Loop through all extensions */
 175         while (tmplen > EXTENSION_TYPE_LEN + EXTENSION_SIZE_LEN) {
 176             type = ((*data) << 8) | *(data + 1);
 177             data += EXTENSION_TYPE_LEN;
 178             size = ((*data) << 8) | *(data + 1);
 179             data += EXTENSION_SIZE_LEN;
 180             if (data + size > dataend)
 181                 goto end;
 182
 183             if (type == TLSEXT_TYPE_session_ticket) {
 184                 if (currtest == TEST_SET_SESSION_TICK_DATA_TLS_1_2
 185                         || currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
 186                     if (size == strlen(dummytick)
 187                             && memcmp(data, dummytick, size) == 0) {
 188                         /* Ticket data is as we expected */
 189                         testresult = 1;
 190                     } else {
 191                         printf("Received session ticket is not as expected\n");
 192                     }
 193                     break;
 194                 }
 195             }
 196
 197             tmplen -= EXTENSION_TYPE_LEN + EXTENSION_SIZE_LEN + size;
 198             data += size;
 199         }
 200
 201  end:
 202         SSL_free(con);
 203         SSL_CTX_free(ctx);
 204         if (!testresult) {
 205             printf("ClientHello test: FAILED (Test %d)\n", currtest);
 206             break;
 207         }
 208     }
 209
 210     ERR_free_strings();
 211     ERR_remove_thread_state(NULL);
 212     EVP_cleanup();
 213     CRYPTO_cleanup_all_ex_data();
 214 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
 215     CRYPTO_mem_leaks(err);
 216 #endif
 217     BIO_free(err);
 218
 219     return testresult?0:1;
 220 }