ssl/ssl3.h

   1 /* ssl/ssl3.h */
   2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #ifndef HEADER_SSL3_H
  60 #define HEADER_SSL3_H
  61
  62 #include "buffer.h"
  63
  64 #ifdef  __cplusplus
  65 extern "C" {
  66 #endif
  67
  68 #define SSL3_CK_RSA_NULL_MD5                    0x03000001
  69 #define SSL3_CK_RSA_NULL_SHA                    0x03000002
  70 #define SSL3_CK_RSA_RC4_40_MD5                  0x03000003
  71 #define SSL3_CK_RSA_RC4_128_MD5                 0x03000004
  72 #define SSL3_CK_RSA_RC4_128_SHA                 0x03000005
  73 #define SSL3_CK_RSA_RC2_40_MD5                  0x03000006
  74 #define SSL3_CK_RSA_IDEA_128_SHA                0x03000007
  75 #define SSL3_CK_RSA_DES_40_CBC_SHA              0x03000008
  76 #define SSL3_CK_RSA_DES_64_CBC_SHA              0x03000009
  77 #define SSL3_CK_RSA_DES_192_CBC3_SHA            0x0300000A
  78
  79 #define SSL3_CK_DH_DSS_DES_40_CBC_SHA           0x0300000B
  80 #define SSL3_CK_DH_DSS_DES_64_CBC_SHA           0x0300000C
  81 #define SSL3_CK_DH_DSS_DES_192_CBC3_SHA         0x0300000D
  82 #define SSL3_CK_DH_RSA_DES_40_CBC_SHA           0x0300000E
  83 #define SSL3_CK_DH_RSA_DES_64_CBC_SHA           0x0300000F
  84 #define SSL3_CK_DH_RSA_DES_192_CBC3_SHA         0x03000010
  85
  86 #define SSL3_CK_EDH_DSS_DES_40_CBC_SHA          0x03000011
  87 #define SSL3_CK_EDH_DSS_DES_64_CBC_SHA          0x03000012
  88 #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA        0x03000013
  89 #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA          0x03000014
  90 #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA          0x03000015
  91 #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA        0x03000016
  92
  93 #define SSL3_CK_ADH_RC4_40_MD5                  0x03000017
  94 #define SSL3_CK_ADH_RC4_128_MD5                 0x03000018
  95 #define SSL3_CK_ADH_DES_40_CBC_SHA              0x03000019
  96 #define SSL3_CK_ADH_DES_64_CBC_SHA              0x0300001A
  97 #define SSL3_CK_ADH_DES_196_CBC_SHA             0x0300001B
  98
  99 #define SSL3_CK_FZA_DMS_NULL_SHA                0x0300001C
 100 #define SSL3_CK_FZA_DMS_FZA_SHA                 0x0300001D
 101 #define SSL3_CK_FZA_DMS_RC4_SHA                 0x0300001E
 102
 103 #define SSL3_TXT_RSA_NULL_MD5                   "NULL-MD5"
 104 #define SSL3_TXT_RSA_NULL_SHA                   "NULL-SHA"
 105 #define SSL3_TXT_RSA_RC4_40_MD5                 "EXP-RC4-MD5"
 106 #define SSL3_TXT_RSA_RC4_128_MD5                "RC4-MD5"
 107 #define SSL3_TXT_RSA_RC4_128_SHA                "RC4-SHA"
 108 #define SSL3_TXT_RSA_RC2_40_MD5                 "EXP-RC2-CBC-MD5"
 109 #define SSL3_TXT_RSA_IDEA_128_SHA               "IDEA-CBC-MD5"
 110 #define SSL3_TXT_RSA_DES_40_CBC_SHA             "EXP-DES-CBC-SHA"
 111 #define SSL3_TXT_RSA_DES_64_CBC_SHA             "DES-CBC-SHA"
 112 #define SSL3_TXT_RSA_DES_192_CBC3_SHA           "DES-CBC3-SHA"
 113
 114 #define SSL3_TXT_DH_DSS_DES_40_CBC_SHA          "EXP-DH-DSS-DES-CBC-SHA"
 115 #define SSL3_TXT_DH_DSS_DES_64_CBC_SHA          "DH-DSS-DES-CBC-SHA"
 116 #define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA        "DH-DSS-DES-CBC3-SHA"
 117 #define SSL3_TXT_DH_RSA_DES_40_CBC_SHA          "EXP-DH-RSA-DES-CBC-SHA"
 118 #define SSL3_TXT_DH_RSA_DES_64_CBC_SHA          "DH-RSA-DES-CBC-SHA"
 119 #define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA        "DH-RSA-DES-CBC3-SHA"
 120
 121 #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA         "EXP-EDH-DSS-DES-CBC-SHA"
 122 #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA         "EDH-DSS-DES-CBC-SHA"
 123 #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA       "EDH-DSS-DES-CBC3-SHA"
 124 #define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA         "EXP-EDH-RSA-DES-CBC"
 125 #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA         "EDH-RSA-DES-CBC-SHA"
 126 #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA       "EDH-RSA-DES-CBC3-SHA"
 127
 128 #define SSL3_TXT_ADH_RC4_40_MD5                 "EXP-ADH-RC4-MD5"
 129 #define SSL3_TXT_ADH_RC4_128_MD5                "ADH-RC4-MD5"
 130 #define SSL3_TXT_ADH_DES_40_CBC_SHA             "EXP-ADH-DES-CBC-SHA"
 131 #define SSL3_TXT_ADH_DES_64_CBC_SHA             "ADH-DES-CBC-SHA"
 132 #define SSL3_TXT_ADH_DES_196_CBC_SHA            "ADH-DES-CBC3-SHA"
 133
 134 #define SSL3_TXT_FZA_DMS_NULL_SHA               "FZA-NULL-SHA"
 135 #define SSL3_TXT_FZA_DMS_FZA_SHA                "FZA-FZA-CBC-SHA"
 136 #define SSL3_TXT_FZA_DMS_RC4_SHA                "FZA-RC4-SHA"
 137
 138 #define SSL3_SSL_SESSION_ID_LENGTH              32
 139 #define SSL3_MAX_SSL_SESSION_ID_LENGTH          32
 140
 141 #define SSL3_MASTER_SECRET_SIZE                 48
 142 #define SSL3_RANDOM_SIZE                        32
 143 #define SSL3_SESSION_ID_SIZE                    32
 144 #define SSL3_RT_HEADER_LENGTH                   5
 145
 146 /* Due to MS stuffing up, this can change.... */
 147 #if defined(WIN16) || (defined(MSDOS) && !defined(WIN32))
 148 #define SSL3_RT_MAX_EXTRA                       (14000)
 149 #else
 150 #define SSL3_RT_MAX_EXTRA                       (16384)
 151 #endif
 152
 153 #define SSL3_RT_MAX_PLAIN_LENGTH                16384
 154 #define SSL3_RT_MAX_COMPRESSED_LENGTH   (1024+SSL3_RT_MAX_PLAIN_LENGTH)
 155 #define SSL3_RT_MAX_ENCRYPTED_LENGTH    (1024+SSL3_RT_MAX_COMPRESSED_LENGTH)
 156 #define SSL3_RT_MAX_PACKET_SIZE         (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
 157 #define SSL3_RT_MAX_DATA_SIZE                   (1024*1024)
 158
 159 /* the states that a SSL3_RECORD can be in
 160  * For SSL_read it goes
 161  * rbuf->ENCODED        -> read
 162  * ENCODED              -> we need to decode everything - call decode_record
 163  */
 164
 165 #define SSL3_RS_BLANK                   1
 166 #define SSL3_RS_DATA
 167
 168 #define SSL3_RS_ENCODED                 2
 169 #define SSL3_RS_READ_MORE               3
 170 #define SSL3_RS_WRITE_MORE
 171 #define SSL3_RS_PLAIN                   3
 172 #define SSL3_RS_PART_READ               4
 173 #define SSL3_RS_PART_WRITE              5
 174
 175 #define SSL3_MD_CLIENT_FINISHED_CONST   0x43,0x4C,0x4E,0x54
 176 #define SSL3_MD_SERVER_FINISHED_CONST   0x53,0x52,0x56,0x52
 177
 178 #define SSL3_VERSION                    0x0300
 179 #define SSL3_VERSION_MAJOR              0x03
 180 #define SSL3_VERSION_MINOR              0x00
 181
 182 #define SSL3_RT_CHANGE_CIPHER_SPEC      20
 183 #define SSL3_RT_ALERT                   21
 184 #define SSL3_RT_HANDSHAKE               22
 185 #define SSL3_RT_APPLICATION_DATA        23
 186
 187 #define SSL3_AL_WARNING                 1
 188 #define SSL3_AL_FATAL                   2
 189
 190 #define SSL3_AD_CLOSE_NOTIFY             0
 191 #define SSL3_AD_UNEXPECTED_MESSAGE      10      /* fatal */
 192 #define SSL3_AD_BAD_RECORD_MAC          20      /* fatal */
 193 #define SSL3_AD_DECOMPRESSION_FAILURE   30      /* fatal */
 194 #define SSL3_AD_HANDSHAKE_FAILURE       40      /* fatal */
 195 #define SSL3_AD_NO_CERTIFICATE          41
 196 #define SSL3_AD_BAD_CERTIFICATE         42
 197 #define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
 198 #define SSL3_AD_CERTIFICATE_REVOKED     44
 199 #define SSL3_AD_CERTIFICATE_EXPIRED     45
 200 #define SSL3_AD_CERTIFICATE_UNKNOWN     46
 201 #define SSL3_AD_ILLEGAL_PARAMETER       47      /* fatal */
 202
 203 typedef struct ssl3_record_st
 204         {
 205 /*r */  int type;               /* type of record */
 206 /*  */  /*int state;*/          /* any data in it? */
 207 /*rw*/  unsigned int length;    /* How many bytes available */
 208 /*r */  unsigned int off;       /* read/write offset into 'buf' */
 209 /*rw*/  unsigned char *data;    /* pointer to the record data */
 210 /*rw*/  unsigned char *input;   /* where the decode bytes are */
 211 /*rw*/  unsigned char *comp;    /* only used with decompression */
 212         } SSL3_RECORD;
 213
 214 typedef struct ssl3_buffer_st
 215         {
 216 /*r */  int total;              /* used in non-blocking writes */
 217 /*r */  int wanted;             /* how many more bytes we need */
 218 /*rw*/  int left;               /* how many bytes left */
 219 /*rw*/  int offset;             /* where to 'copy from' */
 220 /*rw*/  unsigned char *buf;     /* SSL3_RT_MAX_PACKET_SIZE bytes */
 221         } SSL3_BUFFER;
 222
 223 typedef struct ssl3_compression_st {
 224         int nothing;
 225         } SSL3_COMPRESSION;
 226
 227 #define SSL3_CT_RSA_SIGN                        1
 228 #define SSL3_CT_DSS_SIGN                        2
 229 #define SSL3_CT_RSA_FIXED_DH                    3
 230 #define SSL3_CT_DSS_FIXED_DH                    4
 231 #define SSL3_CT_RSA_EPHEMERAL_DH                5
 232 #define SSL3_CT_DSS_EPHEMERAL_DH                6
 233 #define SSL3_CT_FORTEZZA_DMS                    20
 234 #define SSL3_CT_NUMBER                          7
 235
 236 #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS       0x0001
 237 #define SSL3_FLAGS_DELAY_CLIENT_FINISHED        0x0002
 238 #define SSL3_FLAGS_POP_BUFFER                   0x0004
 239
 240 typedef struct ssl3_ctx_st
 241         {
 242         long flags;
 243         int delay_buf_pop_ret;
 244
 245         unsigned char read_sequence[8];
 246         unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
 247         unsigned char write_sequence[8];
 248         unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
 249
 250         unsigned char server_random[SSL3_RANDOM_SIZE];
 251         unsigned char client_random[SSL3_RANDOM_SIZE];
 252
 253         SSL3_BUFFER rbuf;       /* read IO goes into here */
 254         SSL3_BUFFER wbuf;       /* write IO goes into here */
 255         SSL3_RECORD rrec;       /* each decoded record goes in here */
 256         SSL3_RECORD wrec;       /* goes out from here */
 257                                 /* Used by ssl3_read_n to point
 258                                  * to input data packet */
 259
 260         /* partial write - check the numbers match */
 261         unsigned int wnum;      /* number of bytes sent so far */
 262         int wpend_tot;          /* number bytes written */
 263         int wpend_type;
 264         int wpend_ret;          /* number of bytes submitted */
 265         char *wpend_buf;
 266
 267         /* used during startup, digest all incoming/outgoing packets */
 268         EVP_MD_CTX finish_dgst1;
 269         EVP_MD_CTX finish_dgst2;
 270
 271         /* this is set whenerver we see a change_cipher_spec message
 272          * come in when we are not looking for one */
 273         int change_cipher_spec;
 274
 275         int warn_alert;
 276         int fatal_alert;
 277         /* we alow one fatal and one warning alert to be outstanding,
 278          * send close alert via the warning alert */
 279         int alert_dispatch;
 280         char send_alert[2];
 281
 282         struct  {
 283                 unsigned char finish_md1[EVP_MAX_MD_SIZE];
 284                 unsigned char finish_md2[EVP_MAX_MD_SIZE];
 285
 286                 unsigned long message_size;
 287                 int message_type;
 288
 289                 /* used to hold the new cipher we are going to use */
 290                 SSL_CIPHER *new_cipher;
 291                 DH *dh;
 292
 293                 /* used when SSL_ST_FLUSH_DATA is entered */
 294                 int next_state;
 295
 296                 int reuse_message;
 297
 298                 /* used for certificate requests */
 299                 int cert_req;
 300                 int ctype_num;
 301                 char ctype[SSL3_CT_NUMBER];
 302                 STACK *ca_names;
 303
 304                 int use_rsa_tmp;
 305
 306                 int key_block_length;
 307                 unsigned char *key_block;
 308
 309                 EVP_CIPHER *new_sym_enc;
 310                 EVP_MD *new_hash;
 311                 SSL_COMPRESSION *new_compression;
 312                 } tmp;
 313         } SSL3_CTX;
 314
 315 /* SSLv3 */
 316 /*client */
 317 /* extra state */
 318 #define SSL3_ST_CW_FLUSH                (0x100|SSL_ST_CONNECT)
 319 /* write to server */
 320 #define SSL3_ST_CW_CLNT_HELLO_A         (0x110|SSL_ST_CONNECT)
 321 #define SSL3_ST_CW_CLNT_HELLO_B         (0x111|SSL_ST_CONNECT)
 322 /* read from server */
 323 #define SSL3_ST_CR_SRVR_HELLO_A         (0x120|SSL_ST_CONNECT)
 324 #define SSL3_ST_CR_SRVR_HELLO_B         (0x121|SSL_ST_CONNECT)
 325 #define SSL3_ST_CR_CERT_A               (0x130|SSL_ST_CONNECT)
 326 #define SSL3_ST_CR_CERT_B               (0x131|SSL_ST_CONNECT)
 327 #define SSL3_ST_CR_KEY_EXCH_A           (0x140|SSL_ST_CONNECT)
 328 #define SSL3_ST_CR_KEY_EXCH_B           (0x141|SSL_ST_CONNECT)
 329 #define SSL3_ST_CR_CERT_REQ_A           (0x150|SSL_ST_CONNECT)
 330 #define SSL3_ST_CR_CERT_REQ_B           (0x151|SSL_ST_CONNECT)
 331 #define SSL3_ST_CR_SRVR_DONE_A          (0x160|SSL_ST_CONNECT)
 332 #define SSL3_ST_CR_SRVR_DONE_B          (0x161|SSL_ST_CONNECT)
 333 /* write to server */
 334 #define SSL3_ST_CW_CERT_A               (0x170|SSL_ST_CONNECT)
 335 #define SSL3_ST_CW_CERT_B               (0x171|SSL_ST_CONNECT)
 336 #define SSL3_ST_CW_CERT_C               (0x172|SSL_ST_CONNECT)
 337 #define SSL3_ST_CW_CERT_D               (0x173|SSL_ST_CONNECT)
 338 #define SSL3_ST_CW_KEY_EXCH_A           (0x180|SSL_ST_CONNECT)
 339 #define SSL3_ST_CW_KEY_EXCH_B           (0x181|SSL_ST_CONNECT)
 340 #define SSL3_ST_CW_CERT_VRFY_A          (0x190|SSL_ST_CONNECT)
 341 #define SSL3_ST_CW_CERT_VRFY_B          (0x191|SSL_ST_CONNECT)
 342 #define SSL3_ST_CW_CHANGE_A             (0x1A0|SSL_ST_CONNECT)
 343 #define SSL3_ST_CW_CHANGE_B             (0x1A1|SSL_ST_CONNECT)
 344 #define SSL3_ST_CW_FINISHED_A           (0x1B0|SSL_ST_CONNECT)
 345 #define SSL3_ST_CW_FINISHED_B           (0x1B1|SSL_ST_CONNECT)
 346 /* read from server */
 347 #define SSL3_ST_CR_CHANGE_A             (0x1C0|SSL_ST_CONNECT)
 348 #define SSL3_ST_CR_CHANGE_B             (0x1C1|SSL_ST_CONNECT)
 349 #define SSL3_ST_CR_FINISHED_A           (0x1D0|SSL_ST_CONNECT)
 350 #define SSL3_ST_CR_FINISHED_B           (0x1D1|SSL_ST_CONNECT)
 351
 352 /* server */
 353 /* extra state */
 354 #define SSL3_ST_SW_FLUSH                (0x100|SSL_ST_ACCEPT)
 355 /* read from client */
 356 #define SSL3_ST_SR_CLNT_HELLO_A         (0x110|SSL_ST_ACCEPT)
 357 #define SSL3_ST_SR_CLNT_HELLO_B         (0x111|SSL_ST_ACCEPT)
 358 #define SSL3_ST_SR_CLNT_HELLO_C         (0x112|SSL_ST_ACCEPT)
 359 /* write to client */
 360 #define SSL3_ST_SW_HELLO_REQ_A          (0x120|SSL_ST_ACCEPT)
 361 #define SSL3_ST_SW_HELLO_REQ_B          (0x121|SSL_ST_ACCEPT)
 362 #define SSL3_ST_SW_HELLO_REQ_C          (0x122|SSL_ST_ACCEPT)
 363 #define SSL3_ST_SW_SRVR_HELLO_A         (0x130|SSL_ST_ACCEPT)
 364 #define SSL3_ST_SW_SRVR_HELLO_B         (0x131|SSL_ST_ACCEPT)
 365 #define SSL3_ST_SW_CERT_A               (0x140|SSL_ST_ACCEPT)
 366 #define SSL3_ST_SW_CERT_B               (0x141|SSL_ST_ACCEPT)
 367 #define SSL3_ST_SW_KEY_EXCH_A           (0x150|SSL_ST_ACCEPT)
 368 #define SSL3_ST_SW_KEY_EXCH_B           (0x151|SSL_ST_ACCEPT)
 369 #define SSL3_ST_SW_CERT_REQ_A           (0x160|SSL_ST_ACCEPT)
 370 #define SSL3_ST_SW_CERT_REQ_B           (0x161|SSL_ST_ACCEPT)
 371 #define SSL3_ST_SW_SRVR_DONE_A          (0x170|SSL_ST_ACCEPT)
 372 #define SSL3_ST_SW_SRVR_DONE_B          (0x171|SSL_ST_ACCEPT)
 373 /* read from client */
 374 #define SSL3_ST_SR_CERT_A               (0x180|SSL_ST_ACCEPT)
 375 #define SSL3_ST_SR_CERT_B               (0x181|SSL_ST_ACCEPT)
 376 #define SSL3_ST_SR_KEY_EXCH_A           (0x190|SSL_ST_ACCEPT)
 377 #define SSL3_ST_SR_KEY_EXCH_B           (0x191|SSL_ST_ACCEPT)
 378 #define SSL3_ST_SR_CERT_VRFY_A          (0x1A0|SSL_ST_ACCEPT)
 379 #define SSL3_ST_SR_CERT_VRFY_B          (0x1A1|SSL_ST_ACCEPT)
 380 #define SSL3_ST_SR_CHANGE_A             (0x1B0|SSL_ST_ACCEPT)
 381 #define SSL3_ST_SR_CHANGE_B             (0x1B1|SSL_ST_ACCEPT)
 382 #define SSL3_ST_SR_FINISHED_A           (0x1C0|SSL_ST_ACCEPT)
 383 #define SSL3_ST_SR_FINISHED_B           (0x1C1|SSL_ST_ACCEPT)
 384 /* write to client */
 385 #define SSL3_ST_SW_CHANGE_A             (0x1D0|SSL_ST_ACCEPT)
 386 #define SSL3_ST_SW_CHANGE_B             (0x1D1|SSL_ST_ACCEPT)
 387 #define SSL3_ST_SW_FINISHED_A           (0x1E0|SSL_ST_ACCEPT)
 388 #define SSL3_ST_SW_FINISHED_B           (0x1E1|SSL_ST_ACCEPT)
 389
 390 #define SSL3_MT_CLIENT_REQUEST                  0
 391 #define SSL3_MT_CLIENT_HELLO                    1
 392 #define SSL3_MT_SERVER_HELLO                    2
 393 #define SSL3_MT_CERTIFICATE                     11
 394 #define SSL3_MT_SERVER_KEY_EXCHANGE             12
 395 #define SSL3_MT_CERTIFICATE_REQUEST             13
 396 #define SSL3_MT_SERVER_DONE                     14
 397 #define SSL3_MT_CERTIFICATE_VERIFY              15
 398 #define SSL3_MT_CLIENT_KEY_EXCHANGE             16
 399 #define SSL3_MT_FINISHED                        20
 400
 401 #define SSL3_MT_CCS                             1
 402
 403 /* These are used when changing over to a new cipher */
 404 #define SSL3_CC_READ            0x01
 405 #define SSL3_CC_WRITE           0x02
 406 #define SSL3_CC_CLIENT          0x10
 407 #define SSL3_CC_SERVER          0x20
 408 #define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
 409 #define SSL3_CHANGE_CIPHER_SERVER_READ  (SSL3_CC_SERVER|SSL3_CC_READ)
 410 #define SSL3_CHANGE_CIPHER_CLIENT_READ  (SSL3_CC_CLIENT|SSL3_CC_READ)
 411 #define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
 412
 413 #ifdef  __cplusplus
 414 }
 415 #endif
 416 #endif
 417