include/openssl/ssl3.h

   1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   2  * All rights reserved.
   3  *
   4  * This package is an SSL implementation written
   5  * by Eric Young (eay@cryptsoft.com).
   6  * The implementation was written so as to conform with Netscapes SSL.
   7  *
   8  * This library is free for commercial and non-commercial use as long as
   9  * the following conditions are aheared to.  The following conditions
  10  * apply to all code found in this distribution, be it the RC4, RSA,
  11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  12  * included with this distribution is covered by the same copyright terms
  13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14  *
  15  * Copyright remains Eric Young's, and as such any Copyright notices in
  16  * the code are not to be removed.
  17  * If this package is used in a product, Eric Young should be given attribution
  18  * as the author of the parts of the library used.
  19  * This can be in the form of a textual message at program startup or
  20  * in documentation (online or textual) provided with the package.
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. All advertising materials mentioning features or use of this software
  31  *    must display the following acknowledgement:
  32  *    "This product includes cryptographic software written by
  33  *     Eric Young (eay@cryptsoft.com)"
  34  *    The word 'cryptographic' can be left out if the rouines from the library
  35  *    being used are not cryptographic related :-).
  36  * 4. If you include any Windows specific code (or a derivative thereof) from
  37  *    the apps directory (application code) you must include an acknowledgement:
  38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  * The licence and distribution terms for any publically available version or
  53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  54  * copied and put under another distribution licence
  55  * [including the GNU Public Licence.]
  56  */
  57 /* ====================================================================
  58  * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
  59  *
  60  * Redistribution and use in source and binary forms, with or without
  61  * modification, are permitted provided that the following conditions
  62  * are met:
  63  *
  64  * 1. Redistributions of source code must retain the above copyright
  65  *    notice, this list of conditions and the following disclaimer.
  66  *
  67  * 2. Redistributions in binary form must reproduce the above copyright
  68  *    notice, this list of conditions and the following disclaimer in
  69  *    the documentation and/or other materials provided with the
  70  *    distribution.
  71  *
  72  * 3. All advertising materials mentioning features or use of this
  73  *    software must display the following acknowledgment:
  74  *    "This product includes software developed by the OpenSSL Project
  75  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  76  *
  77  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  78  *    endorse or promote products derived from this software without
  79  *    prior written permission. For written permission, please contact
  80  *    openssl-core@openssl.org.
  81  *
  82  * 5. Products derived from this software may not be called "OpenSSL"
  83  *    nor may "OpenSSL" appear in their names without prior written
  84  *    permission of the OpenSSL Project.
  85  *
  86  * 6. Redistributions of any form whatsoever must retain the following
  87  *    acknowledgment:
  88  *    "This product includes software developed by the OpenSSL Project
  89  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  90  *
  91  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  92  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  93  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  94  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  95  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  96  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  97  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  98  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  99  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 100  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 101  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 102  * OF THE POSSIBILITY OF SUCH DAMAGE.
 103  * ====================================================================
 104  *
 105  * This product includes cryptographic software written by Eric Young
 106  * (eay@cryptsoft.com).  This product includes software written by Tim
 107  * Hudson (tjh@cryptsoft.com).
 108  *
 109  */
 110 /* ====================================================================
 111  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 112  * ECC cipher suite support in OpenSSL originally developed by
 113  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 114  */
 115
 116 #ifndef HEADER_SSL3_H
 117 # define HEADER_SSL3_H
 118
 119 # include <openssl/comp.h>
 120 # include <openssl/buffer.h>
 121 # include <openssl/evp.h>
 122 # include <openssl/ssl.h>
 123
 124 #ifdef  __cplusplus
 125 extern "C" {
 126 #endif
 127
 128 /*
 129  * Signalling cipher suite value from RFC 5746
 130  * (TLS_EMPTY_RENEGOTIATION_INFO_SCSV)
 131  */
 132 # define SSL3_CK_SCSV                            0x030000FF
 133
 134 /*
 135  * Signalling cipher suite value from draft-ietf-tls-downgrade-scsv-00
 136  * (TLS_FALLBACK_SCSV)
 137  */
 138 # define SSL3_CK_FALLBACK_SCSV                   0x03005600
 139
 140 # define SSL3_CK_RSA_NULL_MD5                    0x03000001
 141 # define SSL3_CK_RSA_NULL_SHA                    0x03000002
 142 # define SSL3_CK_RSA_RC4_40_MD5                  0x03000003
 143 # define SSL3_CK_RSA_RC4_128_MD5                 0x03000004
 144 # define SSL3_CK_RSA_RC4_128_SHA                 0x03000005
 145 # define SSL3_CK_RSA_RC2_40_MD5                  0x03000006
 146 # define SSL3_CK_RSA_IDEA_128_SHA                0x03000007
 147 # define SSL3_CK_RSA_DES_40_CBC_SHA              0x03000008
 148 # define SSL3_CK_RSA_DES_64_CBC_SHA              0x03000009
 149 # define SSL3_CK_RSA_DES_192_CBC3_SHA            0x0300000A
 150
 151 # define SSL3_CK_DH_DSS_DES_40_CBC_SHA           0x0300000B
 152 # define SSL3_CK_DH_DSS_DES_64_CBC_SHA           0x0300000C
 153 # define SSL3_CK_DH_DSS_DES_192_CBC3_SHA         0x0300000D
 154 # define SSL3_CK_DH_RSA_DES_40_CBC_SHA           0x0300000E
 155 # define SSL3_CK_DH_RSA_DES_64_CBC_SHA           0x0300000F
 156 # define SSL3_CK_DH_RSA_DES_192_CBC3_SHA         0x03000010
 157
 158 # define SSL3_CK_DHE_DSS_DES_40_CBC_SHA          0x03000011
 159 # define SSL3_CK_EDH_DSS_DES_40_CBC_SHA          SSL3_CK_DHE_DSS_DES_40_CBC_SHA
 160 # define SSL3_CK_DHE_DSS_DES_64_CBC_SHA          0x03000012
 161 # define SSL3_CK_EDH_DSS_DES_64_CBC_SHA          SSL3_CK_DHE_DSS_DES_64_CBC_SHA
 162 # define SSL3_CK_DHE_DSS_DES_192_CBC3_SHA        0x03000013
 163 # define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA        SSL3_CK_DHE_DSS_DES_192_CBC3_SHA
 164 # define SSL3_CK_DHE_RSA_DES_40_CBC_SHA          0x03000014
 165 # define SSL3_CK_EDH_RSA_DES_40_CBC_SHA          SSL3_CK_DHE_RSA_DES_40_CBC_SHA
 166 # define SSL3_CK_DHE_RSA_DES_64_CBC_SHA          0x03000015
 167 # define SSL3_CK_EDH_RSA_DES_64_CBC_SHA          SSL3_CK_DHE_RSA_DES_64_CBC_SHA
 168 # define SSL3_CK_DHE_RSA_DES_192_CBC3_SHA        0x03000016
 169 # define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA        SSL3_CK_DHE_RSA_DES_192_CBC3_SHA
 170
 171 # define SSL3_CK_ADH_RC4_40_MD5                  0x03000017
 172 # define SSL3_CK_ADH_RC4_128_MD5                 0x03000018
 173 # define SSL3_CK_ADH_DES_40_CBC_SHA              0x03000019
 174 # define SSL3_CK_ADH_DES_64_CBC_SHA              0x0300001A
 175 # define SSL3_CK_ADH_DES_192_CBC_SHA             0x0300001B
 176
 177 # define SSL3_TXT_RSA_NULL_MD5                   "NULL-MD5"
 178 # define SSL3_TXT_RSA_NULL_SHA                   "NULL-SHA"
 179 # define SSL3_TXT_RSA_RC4_40_MD5                 "EXP-RC4-MD5"
 180 # define SSL3_TXT_RSA_RC4_128_MD5                "RC4-MD5"
 181 # define SSL3_TXT_RSA_RC4_128_SHA                "RC4-SHA"
 182 # define SSL3_TXT_RSA_RC2_40_MD5                 "EXP-RC2-CBC-MD5"
 183 # define SSL3_TXT_RSA_IDEA_128_SHA               "IDEA-CBC-SHA"
 184 # define SSL3_TXT_RSA_DES_40_CBC_SHA             "EXP-DES-CBC-SHA"
 185 # define SSL3_TXT_RSA_DES_64_CBC_SHA             "DES-CBC-SHA"
 186 # define SSL3_TXT_RSA_DES_192_CBC3_SHA           "DES-CBC3-SHA"
 187
 188 # define SSL3_TXT_DH_DSS_DES_40_CBC_SHA          "EXP-DH-DSS-DES-CBC-SHA"
 189 # define SSL3_TXT_DH_DSS_DES_64_CBC_SHA          "DH-DSS-DES-CBC-SHA"
 190 # define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA        "DH-DSS-DES-CBC3-SHA"
 191 # define SSL3_TXT_DH_RSA_DES_40_CBC_SHA          "EXP-DH-RSA-DES-CBC-SHA"
 192 # define SSL3_TXT_DH_RSA_DES_64_CBC_SHA          "DH-RSA-DES-CBC-SHA"
 193 # define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA        "DH-RSA-DES-CBC3-SHA"
 194
 195 # define SSL3_TXT_DHE_DSS_DES_40_CBC_SHA         "EXP-DHE-DSS-DES-CBC-SHA"
 196 # define SSL3_TXT_DHE_DSS_DES_64_CBC_SHA         "DHE-DSS-DES-CBC-SHA"
 197 # define SSL3_TXT_DHE_DSS_DES_192_CBC3_SHA       "DHE-DSS-DES-CBC3-SHA"
 198 # define SSL3_TXT_DHE_RSA_DES_40_CBC_SHA         "EXP-DHE-RSA-DES-CBC-SHA"
 199 # define SSL3_TXT_DHE_RSA_DES_64_CBC_SHA         "DHE-RSA-DES-CBC-SHA"
 200 # define SSL3_TXT_DHE_RSA_DES_192_CBC3_SHA       "DHE-RSA-DES-CBC3-SHA"
 201
 202 /*
 203  * This next block of six "EDH" labels is for backward compatibility with
 204  * older versions of OpenSSL.  New code should use the six "DHE" labels above
 205  * instead:
 206  */
 207 # define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA         "EXP-EDH-DSS-DES-CBC-SHA"
 208 # define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA         "EDH-DSS-DES-CBC-SHA"
 209 # define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA       "EDH-DSS-DES-CBC3-SHA"
 210 # define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA         "EXP-EDH-RSA-DES-CBC-SHA"
 211 # define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA         "EDH-RSA-DES-CBC-SHA"
 212 # define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA       "EDH-RSA-DES-CBC3-SHA"
 213
 214 # define SSL3_TXT_ADH_RC4_40_MD5                 "EXP-ADH-RC4-MD5"
 215 # define SSL3_TXT_ADH_RC4_128_MD5                "ADH-RC4-MD5"
 216 # define SSL3_TXT_ADH_DES_40_CBC_SHA             "EXP-ADH-DES-CBC-SHA"
 217 # define SSL3_TXT_ADH_DES_64_CBC_SHA             "ADH-DES-CBC-SHA"
 218 # define SSL3_TXT_ADH_DES_192_CBC_SHA            "ADH-DES-CBC3-SHA"
 219
 220 # define SSL3_SSL_SESSION_ID_LENGTH              32
 221 # define SSL3_MAX_SSL_SESSION_ID_LENGTH          32
 222
 223 # define SSL3_MASTER_SECRET_SIZE                 48
 224 # define SSL3_RANDOM_SIZE                        32
 225 # define SSL3_SESSION_ID_SIZE                    32
 226 # define SSL3_RT_HEADER_LENGTH                   5
 227
 228 # define SSL3_HM_HEADER_LENGTH                  4
 229
 230 # ifndef SSL3_ALIGN_PAYLOAD
 231  /*
 232   * Some will argue that this increases memory footprint, but it's not
 233   * actually true. Point is that malloc has to return at least 64-bit aligned
 234   * pointers, meaning that allocating 5 bytes wastes 3 bytes in either case.
 235   * Suggested pre-gaping simply moves these wasted bytes from the end of
 236   * allocated region to its front, but makes data payload aligned, which
 237   * improves performance:-)
 238   */
 239 #  define SSL3_ALIGN_PAYLOAD                     8
 240 # else
 241 #  if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0
 242 #   error "insane SSL3_ALIGN_PAYLOAD"
 243 #   undef SSL3_ALIGN_PAYLOAD
 244 #  endif
 245 # endif
 246
 247 /*
 248  * This is the maximum MAC (digest) size used by the SSL library. Currently
 249  * maximum of 20 is used by SHA1, but we reserve for future extension for
 250  * 512-bit hashes.
 251  */
 252
 253 # define SSL3_RT_MAX_MD_SIZE                     64
 254
 255 /*
 256  * Maximum block size used in all ciphersuites. Currently 16 for AES.
 257  */
 258
 259 # define SSL_RT_MAX_CIPHER_BLOCK_SIZE            16
 260
 261 # define SSL3_RT_MAX_EXTRA                       (16384)
 262
 263 /* Maximum plaintext length: defined by SSL/TLS standards */
 264 # define SSL3_RT_MAX_PLAIN_LENGTH                16384
 265 /* Maximum compression overhead: defined by SSL/TLS standards */
 266 # define SSL3_RT_MAX_COMPRESSED_OVERHEAD         1024
 267
 268 /*
 269  * The standards give a maximum encryption overhead of 1024 bytes. In
 270  * practice the value is lower than this. The overhead is the maximum number
 271  * of padding bytes (256) plus the mac size.
 272  */
 273 # define SSL3_RT_MAX_ENCRYPTED_OVERHEAD  (256 + SSL3_RT_MAX_MD_SIZE)
 274
 275 /*
 276  * OpenSSL currently only uses a padding length of at most one block so the
 277  * send overhead is smaller.
 278  */
 279
 280 # define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
 281                         (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE)
 282
 283 /* If compression isn't used don't include the compression overhead */
 284
 285 # ifdef OPENSSL_NO_COMP
 286 #  define SSL3_RT_MAX_COMPRESSED_LENGTH           SSL3_RT_MAX_PLAIN_LENGTH
 287 # else
 288 #  define SSL3_RT_MAX_COMPRESSED_LENGTH   \
 289                 (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD)
 290 # endif
 291 # define SSL3_RT_MAX_ENCRYPTED_LENGTH    \
 292                 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH)
 293 # define SSL3_RT_MAX_PACKET_SIZE         \
 294                 (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
 295
 296 # define SSL3_MD_CLIENT_FINISHED_CONST   "\x43\x4C\x4E\x54"
 297 # define SSL3_MD_SERVER_FINISHED_CONST   "\x53\x52\x56\x52"
 298
 299 # define SSL3_VERSION                    0x0300
 300 # define SSL3_VERSION_MAJOR              0x03
 301 # define SSL3_VERSION_MINOR              0x00
 302
 303 # define SSL3_RT_CHANGE_CIPHER_SPEC      20
 304 # define SSL3_RT_ALERT                   21
 305 # define SSL3_RT_HANDSHAKE               22
 306 # define SSL3_RT_APPLICATION_DATA        23
 307 # define DTLS1_RT_HEARTBEAT              24
 308
 309 /* Pseudo content types to indicate additional parameters */
 310 # define TLS1_RT_CRYPTO                  0x1000
 311 # define TLS1_RT_CRYPTO_PREMASTER        (TLS1_RT_CRYPTO | 0x1)
 312 # define TLS1_RT_CRYPTO_CLIENT_RANDOM    (TLS1_RT_CRYPTO | 0x2)
 313 # define TLS1_RT_CRYPTO_SERVER_RANDOM    (TLS1_RT_CRYPTO | 0x3)
 314 # define TLS1_RT_CRYPTO_MASTER           (TLS1_RT_CRYPTO | 0x4)
 315
 316 # define TLS1_RT_CRYPTO_READ             0x0000
 317 # define TLS1_RT_CRYPTO_WRITE            0x0100
 318 # define TLS1_RT_CRYPTO_MAC              (TLS1_RT_CRYPTO | 0x5)
 319 # define TLS1_RT_CRYPTO_KEY              (TLS1_RT_CRYPTO | 0x6)
 320 # define TLS1_RT_CRYPTO_IV               (TLS1_RT_CRYPTO | 0x7)
 321 # define TLS1_RT_CRYPTO_FIXED_IV         (TLS1_RT_CRYPTO | 0x8)
 322
 323 /* Pseudo content type for SSL/TLS header info */
 324 # define SSL3_RT_HEADER                  0x100
 325
 326 # define SSL3_AL_WARNING                 1
 327 # define SSL3_AL_FATAL                   2
 328
 329 # define SSL3_AD_CLOSE_NOTIFY             0
 330 # define SSL3_AD_UNEXPECTED_MESSAGE      10/* fatal */
 331 # define SSL3_AD_BAD_RECORD_MAC          20/* fatal */
 332 # define SSL3_AD_DECOMPRESSION_FAILURE   30/* fatal */
 333 # define SSL3_AD_HANDSHAKE_FAILURE       40/* fatal */
 334 # define SSL3_AD_NO_CERTIFICATE          41
 335 # define SSL3_AD_BAD_CERTIFICATE         42
 336 # define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
 337 # define SSL3_AD_CERTIFICATE_REVOKED     44
 338 # define SSL3_AD_CERTIFICATE_EXPIRED     45
 339 # define SSL3_AD_CERTIFICATE_UNKNOWN     46
 340 # define SSL3_AD_ILLEGAL_PARAMETER       47/* fatal */
 341
 342 # define TLS1_HB_REQUEST         1
 343 # define TLS1_HB_RESPONSE        2
 344
 345
 346 # define SSL3_CT_RSA_SIGN                        1
 347 # define SSL3_CT_DSS_SIGN                        2
 348 # define SSL3_CT_RSA_FIXED_DH                    3
 349 # define SSL3_CT_DSS_FIXED_DH                    4
 350 # define SSL3_CT_RSA_EPHEMERAL_DH                5
 351 # define SSL3_CT_DSS_EPHEMERAL_DH                6
 352 # define SSL3_CT_FORTEZZA_DMS                    20
 353 /*
 354  * SSL3_CT_NUMBER is used to size arrays and it must be large enough to
 355  * contain all of the cert types defined either for SSLv3 and TLSv1.
 356  */
 357 # define SSL3_CT_NUMBER                  9
 358
 359 # define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS       0x0001
 360
 361 /* Removed from OpenSSL 1.1.0 */
 362 # define TLS1_FLAGS_TLS_PADDING_BUG              0x0
 363
 364 # define TLS1_FLAGS_SKIP_CERT_VERIFY             0x0010
 365
 366 /* Set if we encrypt then mac instead of usual mac then encrypt */
 367 # define TLS1_FLAGS_ENCRYPT_THEN_MAC             0x0100
 368
 369 /* Set if extended master secret extension received from peer */
 370 # define TLS1_FLAGS_RECEIVED_EXTMS               0x0200
 371
 372 # define SSL3_MT_HELLO_REQUEST                   0
 373 # define SSL3_MT_CLIENT_HELLO                    1
 374 # define SSL3_MT_SERVER_HELLO                    2
 375 # define SSL3_MT_NEWSESSION_TICKET               4
 376 # define SSL3_MT_CERTIFICATE                     11
 377 # define SSL3_MT_SERVER_KEY_EXCHANGE             12
 378 # define SSL3_MT_CERTIFICATE_REQUEST             13
 379 # define SSL3_MT_SERVER_DONE                     14
 380 # define SSL3_MT_CERTIFICATE_VERIFY              15
 381 # define SSL3_MT_CLIENT_KEY_EXCHANGE             16
 382 # define SSL3_MT_FINISHED                        20
 383 # define SSL3_MT_CERTIFICATE_STATUS              22
 384 # ifndef OPENSSL_NO_NEXTPROTONEG
 385 #  define SSL3_MT_NEXT_PROTO                      67
 386 # endif
 387 # define DTLS1_MT_HELLO_VERIFY_REQUEST    3
 388
 389 /* Dummy message type for handling CCS like a normal handshake message */
 390 # define SSL3_MT_CHANGE_CIPHER_SPEC              0x0101
 391
 392 # define SSL3_MT_CCS                             1
 393
 394 /* These are used when changing over to a new cipher */
 395 # define SSL3_CC_READ            0x01
 396 # define SSL3_CC_WRITE           0x02
 397 # define SSL3_CC_CLIENT          0x10
 398 # define SSL3_CC_SERVER          0x20
 399 # define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
 400 # define SSL3_CHANGE_CIPHER_SERVER_READ  (SSL3_CC_SERVER|SSL3_CC_READ)
 401 # define SSL3_CHANGE_CIPHER_CLIENT_READ  (SSL3_CC_CLIENT|SSL3_CC_READ)
 402 # define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
 403
 404 #ifdef  __cplusplus
 405 }
 406 #endif
 407 #endif