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/opensslconf.h>
  59 #include <openssl/bio.h>
  60 #include <openssl/crypto.h>
  61 #include <openssl/evp.h>
  62 #include <openssl/ssl.h>
  63 #include <openssl/err.h>
  64
  65
  66 #define CLIENT_VERSION_LEN      2
  67 #define SESSION_ID_LEN_LEN      1
  68 #define CIPHERS_LEN_LEN         2
  69 #define COMPRESSION_LEN_LEN     1
  70 #define EXTENSIONS_LEN_LEN      2
  71 #define EXTENSION_TYPE_LEN      2
  72 #define EXTENSION_SIZE_LEN      2
  73
  74
  75 #define TOTAL_NUM_TESTS                         2
  76
  77 /*
  78  * Test that explicitly setting ticket data results in it appearing in the
  79  * ClientHello for TLS1.2
  80  */
  81 #define TEST_SET_SESSION_TICK_DATA_TLS_1_2      0
  82
  83 /*
  84  * Test that explicitly setting ticket data results in it appearing in the
  85  * ClientHello for a negotiated SSL/TLS version
  86  */
  87 #define TEST_SET_SESSION_TICK_DATA_VER_NEG      1
  88
  89 int main(int argc, char *argv[])
  90 {
  91     SSL_CTX *ctx;
  92     SSL *con;
  93     BIO *rbio;
  94     BIO *wbio;
  95     BIO *err;
  96     long len;
  97     unsigned char *data;
  98     unsigned char *dataend;
  99     char *dummytick = "Hello World!";
 100     unsigned int tmplen;
 101     unsigned int type;
 102     unsigned int size;
 103     int testresult = 0;
 104     int currtest = 0;
 105
 106     err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
 107
 108     CRYPTO_set_mem_debug(1);
 109     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 110
 111     /*
 112      * For each test set up an SSL_CTX and SSL and see what ClientHello gets
 113      * produced when we try to connect
 114      */
 115     for (; currtest < TOTAL_NUM_TESTS; currtest++) {
 116         testresult = 0;
 117         if (currtest == TEST_SET_SESSION_TICK_DATA_TLS_1_2) {
 118 #ifndef OPENSSL_NO_TLS1_2
 119             ctx = SSL_CTX_new(TLSv1_2_method());
 120 #else
 121             continue;
 122 #endif
 123         } else {
 124             ctx = SSL_CTX_new(TLS_method());
 125         }
 126         con = SSL_new(ctx);
 127
 128         rbio = BIO_new(BIO_s_mem());
 129         wbio = BIO_new(BIO_s_mem());
 130         SSL_set_bio(con, rbio, wbio);
 131         SSL_set_connect_state(con);
 132
 133         if (currtest == TEST_SET_SESSION_TICK_DATA_TLS_1_2
 134                 || currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
 135             if (!SSL_set_session_ticket_ext(con, dummytick, strlen(dummytick)))
 136                 goto end;
 137         }
 138
 139         if (SSL_connect(con) > 0) {
 140             /* This shouldn't succeed because we don't have a server! */
 141             goto end;
 142         }
 143
 144         len = BIO_get_mem_data(wbio, (char **)&data);
 145         dataend = data + len;
 146
 147         /* Skip the record header */
 148         data += SSL3_RT_HEADER_LENGTH;
 149         /* Skip the handshake message header */
 150         data += SSL3_HM_HEADER_LENGTH;
 151         /* Skip client version and random */
 152         data += CLIENT_VERSION_LEN + SSL3_RANDOM_SIZE;
 153         if (data + SESSION_ID_LEN_LEN > dataend)
 154             goto end;
 155         /* Skip session id */
 156         tmplen = *data;
 157         data += SESSION_ID_LEN_LEN + tmplen;
 158         if (data + CIPHERS_LEN_LEN > dataend)
 159             goto end;
 160         /* Skip ciphers */
 161         tmplen = ((*data) << 8) | *(data + 1);
 162         data += CIPHERS_LEN_LEN + tmplen;
 163         if (data + COMPRESSION_LEN_LEN > dataend)
 164             goto end;
 165         /* Skip compression */
 166         tmplen = *data;
 167         data += COMPRESSION_LEN_LEN + tmplen;
 168         if (data + EXTENSIONS_LEN_LEN > dataend)
 169             goto end;
 170         /* Extensions len */
 171         tmplen = ((*data) << 8) | *(data + 1);
 172         data += EXTENSIONS_LEN_LEN;
 173         if (data + tmplen > dataend)
 174             goto end;
 175
 176         /* Loop through all extensions */
 177         while (tmplen > EXTENSION_TYPE_LEN + EXTENSION_SIZE_LEN) {
 178             type = ((*data) << 8) | *(data + 1);
 179             data += EXTENSION_TYPE_LEN;
 180             size = ((*data) << 8) | *(data + 1);
 181             data += EXTENSION_SIZE_LEN;
 182             if (data + size > dataend)
 183                 goto end;
 184
 185             if (type == TLSEXT_TYPE_session_ticket) {
 186                 if (currtest == TEST_SET_SESSION_TICK_DATA_TLS_1_2
 187                         || currtest == TEST_SET_SESSION_TICK_DATA_VER_NEG) {
 188                     if (size == strlen(dummytick)
 189                             && memcmp(data, dummytick, size) == 0) {
 190                         /* Ticket data is as we expected */
 191                         testresult = 1;
 192                     } else {
 193                         printf("Received session ticket is not as expected\n");
 194                     }
 195                     break;
 196                 }
 197             }
 198
 199             tmplen -= EXTENSION_TYPE_LEN + EXTENSION_SIZE_LEN + size;
 200             data += size;
 201         }
 202
 203  end:
 204         SSL_free(con);
 205         SSL_CTX_free(ctx);
 206         if (!testresult) {
 207             printf("ClientHello test: FAILED (Test %d)\n", currtest);
 208             break;
 209         }
 210     }
 211
 212 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
 213     if (CRYPTO_mem_leaks(err) <= 0)
 214         testresult = 0;
 215 #endif
 216     BIO_free(err);
 217
 218     return testresult?0:1;
 219 }