release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/sysroot/usr/include/openssl/ssl3.h

   1 /* ssl/ssl3.h */
   2 /* Copyright (C) 1995-1998 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  * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 113  * ECC cipher suite support in OpenSSL originally developed by
 114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 115  */
 116
 117 #ifndef HEADER_SSL3_H
 118 #define HEADER_SSL3_H
 119
 120 #ifndef OPENSSL_NO_COMP
 121 #include <openssl/comp.h>
 122 #endif
 123 #include <openssl/buffer.h>
 124 #include <openssl/evp.h>
 125 #include <openssl/ssl.h>
 126
 127 #ifdef  __cplusplus
 128 extern "C" {
 129 #endif
 130
 131 /* Signalling cipher suite value: from draft-ietf-tls-renegotiation-03.txt */
 132 #define SSL3_CK_SCSV                            0x030000FF
 133
 134 #define SSL3_CK_RSA_NULL_MD5                    0x03000001
 135 #define SSL3_CK_RSA_NULL_SHA                    0x03000002
 136 #define SSL3_CK_RSA_RC4_40_MD5                  0x03000003
 137 #define SSL3_CK_RSA_RC4_128_MD5                 0x03000004
 138 #define SSL3_CK_RSA_RC4_128_SHA                 0x03000005
 139 #define SSL3_CK_RSA_RC2_40_MD5                  0x03000006
 140 #define SSL3_CK_RSA_IDEA_128_SHA                0x03000007
 141 #define SSL3_CK_RSA_DES_40_CBC_SHA              0x03000008
 142 #define SSL3_CK_RSA_DES_64_CBC_SHA              0x03000009
 143 #define SSL3_CK_RSA_DES_192_CBC3_SHA            0x0300000A
 144
 145 #define SSL3_CK_DH_DSS_DES_40_CBC_SHA           0x0300000B
 146 #define SSL3_CK_DH_DSS_DES_64_CBC_SHA           0x0300000C
 147 #define SSL3_CK_DH_DSS_DES_192_CBC3_SHA         0x0300000D
 148 #define SSL3_CK_DH_RSA_DES_40_CBC_SHA           0x0300000E
 149 #define SSL3_CK_DH_RSA_DES_64_CBC_SHA           0x0300000F
 150 #define SSL3_CK_DH_RSA_DES_192_CBC3_SHA         0x03000010
 151
 152 #define SSL3_CK_EDH_DSS_DES_40_CBC_SHA          0x03000011
 153 #define SSL3_CK_EDH_DSS_DES_64_CBC_SHA          0x03000012
 154 #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA        0x03000013
 155 #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA          0x03000014
 156 #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA          0x03000015
 157 #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA        0x03000016
 158
 159 #define SSL3_CK_ADH_RC4_40_MD5                  0x03000017
 160 #define SSL3_CK_ADH_RC4_128_MD5                 0x03000018
 161 #define SSL3_CK_ADH_DES_40_CBC_SHA              0x03000019
 162 #define SSL3_CK_ADH_DES_64_CBC_SHA              0x0300001A
 163 #define SSL3_CK_ADH_DES_192_CBC_SHA             0x0300001B
 164
 165 #if 0
 166         #define SSL3_CK_FZA_DMS_NULL_SHA                0x0300001C
 167         #define SSL3_CK_FZA_DMS_FZA_SHA                 0x0300001D
 168         #if 0 /* Because it clashes with KRB5, is never used any more, and is safe
 169                  to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
 170                  of the ietf-tls list */
 171         #define SSL3_CK_FZA_DMS_RC4_SHA                 0x0300001E
 172         #endif
 173 #endif
 174
 175 /*    VRS Additional Kerberos5 entries
 176  */
 177 #define SSL3_CK_KRB5_DES_64_CBC_SHA             0x0300001E
 178 #define SSL3_CK_KRB5_DES_192_CBC3_SHA           0x0300001F
 179 #define SSL3_CK_KRB5_RC4_128_SHA                0x03000020
 180 #define SSL3_CK_KRB5_IDEA_128_CBC_SHA           0x03000021
 181 #define SSL3_CK_KRB5_DES_64_CBC_MD5             0x03000022
 182 #define SSL3_CK_KRB5_DES_192_CBC3_MD5           0x03000023
 183 #define SSL3_CK_KRB5_RC4_128_MD5                0x03000024
 184 #define SSL3_CK_KRB5_IDEA_128_CBC_MD5           0x03000025
 185
 186 #define SSL3_CK_KRB5_DES_40_CBC_SHA             0x03000026
 187 #define SSL3_CK_KRB5_RC2_40_CBC_SHA             0x03000027
 188 #define SSL3_CK_KRB5_RC4_40_SHA                 0x03000028
 189 #define SSL3_CK_KRB5_DES_40_CBC_MD5             0x03000029
 190 #define SSL3_CK_KRB5_RC2_40_CBC_MD5             0x0300002A
 191 #define SSL3_CK_KRB5_RC4_40_MD5                 0x0300002B
 192
 193 #define SSL3_TXT_RSA_NULL_MD5                   "NULL-MD5"
 194 #define SSL3_TXT_RSA_NULL_SHA                   "NULL-SHA"
 195 #define SSL3_TXT_RSA_RC4_40_MD5                 "EXP-RC4-MD5"
 196 #define SSL3_TXT_RSA_RC4_128_MD5                "RC4-MD5"
 197 #define SSL3_TXT_RSA_RC4_128_SHA                "RC4-SHA"
 198 #define SSL3_TXT_RSA_RC2_40_MD5                 "EXP-RC2-CBC-MD5"
 199 #define SSL3_TXT_RSA_IDEA_128_SHA               "IDEA-CBC-SHA"
 200 #define SSL3_TXT_RSA_DES_40_CBC_SHA             "EXP-DES-CBC-SHA"
 201 #define SSL3_TXT_RSA_DES_64_CBC_SHA             "DES-CBC-SHA"
 202 #define SSL3_TXT_RSA_DES_192_CBC3_SHA           "DES-CBC3-SHA"
 203
 204 #define SSL3_TXT_DH_DSS_DES_40_CBC_SHA          "EXP-DH-DSS-DES-CBC-SHA"
 205 #define SSL3_TXT_DH_DSS_DES_64_CBC_SHA          "DH-DSS-DES-CBC-SHA"
 206 #define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA        "DH-DSS-DES-CBC3-SHA"
 207 #define SSL3_TXT_DH_RSA_DES_40_CBC_SHA          "EXP-DH-RSA-DES-CBC-SHA"
 208 #define SSL3_TXT_DH_RSA_DES_64_CBC_SHA          "DH-RSA-DES-CBC-SHA"
 209 #define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA        "DH-RSA-DES-CBC3-SHA"
 210
 211 #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA         "EXP-EDH-DSS-DES-CBC-SHA"
 212 #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA         "EDH-DSS-DES-CBC-SHA"
 213 #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA       "EDH-DSS-DES-CBC3-SHA"
 214 #define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA         "EXP-EDH-RSA-DES-CBC-SHA"
 215 #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA         "EDH-RSA-DES-CBC-SHA"
 216 #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA       "EDH-RSA-DES-CBC3-SHA"
 217
 218 #define SSL3_TXT_ADH_RC4_40_MD5                 "EXP-ADH-RC4-MD5"
 219 #define SSL3_TXT_ADH_RC4_128_MD5                "ADH-RC4-MD5"
 220 #define SSL3_TXT_ADH_DES_40_CBC_SHA             "EXP-ADH-DES-CBC-SHA"
 221 #define SSL3_TXT_ADH_DES_64_CBC_SHA             "ADH-DES-CBC-SHA"
 222 #define SSL3_TXT_ADH_DES_192_CBC_SHA            "ADH-DES-CBC3-SHA"
 223
 224 #if 0
 225         #define SSL3_TXT_FZA_DMS_NULL_SHA               "FZA-NULL-SHA"
 226         #define SSL3_TXT_FZA_DMS_FZA_SHA                "FZA-FZA-CBC-SHA"
 227         #define SSL3_TXT_FZA_DMS_RC4_SHA                "FZA-RC4-SHA"
 228 #endif
 229
 230 #define SSL3_TXT_KRB5_DES_64_CBC_SHA            "KRB5-DES-CBC-SHA"
 231 #define SSL3_TXT_KRB5_DES_192_CBC3_SHA          "KRB5-DES-CBC3-SHA"
 232 #define SSL3_TXT_KRB5_RC4_128_SHA               "KRB5-RC4-SHA"
 233 #define SSL3_TXT_KRB5_IDEA_128_CBC_SHA          "KRB5-IDEA-CBC-SHA"
 234 #define SSL3_TXT_KRB5_DES_64_CBC_MD5            "KRB5-DES-CBC-MD5"
 235 #define SSL3_TXT_KRB5_DES_192_CBC3_MD5          "KRB5-DES-CBC3-MD5"
 236 #define SSL3_TXT_KRB5_RC4_128_MD5               "KRB5-RC4-MD5"
 237 #define SSL3_TXT_KRB5_IDEA_128_CBC_MD5          "KRB5-IDEA-CBC-MD5"
 238
 239 #define SSL3_TXT_KRB5_DES_40_CBC_SHA            "EXP-KRB5-DES-CBC-SHA"
 240 #define SSL3_TXT_KRB5_RC2_40_CBC_SHA            "EXP-KRB5-RC2-CBC-SHA"
 241 #define SSL3_TXT_KRB5_RC4_40_SHA                "EXP-KRB5-RC4-SHA"
 242 #define SSL3_TXT_KRB5_DES_40_CBC_MD5            "EXP-KRB5-DES-CBC-MD5"
 243 #define SSL3_TXT_KRB5_RC2_40_CBC_MD5            "EXP-KRB5-RC2-CBC-MD5"
 244 #define SSL3_TXT_KRB5_RC4_40_MD5                "EXP-KRB5-RC4-MD5"
 245
 246 #define SSL3_SSL_SESSION_ID_LENGTH              32
 247 #define SSL3_MAX_SSL_SESSION_ID_LENGTH          32
 248
 249 #define SSL3_MASTER_SECRET_SIZE                 48
 250 #define SSL3_RANDOM_SIZE                        32
 251 #define SSL3_SESSION_ID_SIZE                    32
 252 #define SSL3_RT_HEADER_LENGTH                   5
 253
 254 #ifndef SSL3_ALIGN_PAYLOAD
 255  /* Some will argue that this increases memory footprint, but it's
 256   * not actually true. Point is that malloc has to return at least
 257   * 64-bit aligned pointers, meaning that allocating 5 bytes wastes
 258   * 3 bytes in either case. Suggested pre-gaping simply moves these
 259   * wasted bytes from the end of allocated region to its front,
 260   * but makes data payload aligned, which improves performance:-) */
 261 # define SSL3_ALIGN_PAYLOAD                     8
 262 #else
 263 # if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0
 264 #  error "insane SSL3_ALIGN_PAYLOAD"
 265 #  undef SSL3_ALIGN_PAYLOAD
 266 # endif
 267 #endif
 268
 269 /* This is the maximum MAC (digest) size used by the SSL library.
 270  * Currently maximum of 20 is used by SHA1, but we reserve for
 271  * future extension for 512-bit hashes.
 272  */
 273
 274 #define SSL3_RT_MAX_MD_SIZE                     64
 275
 276 /* Maximum block size used in all ciphersuites. Currently 16 for AES.
 277  */
 278
 279 #define SSL_RT_MAX_CIPHER_BLOCK_SIZE            16
 280
 281 #define SSL3_RT_MAX_EXTRA                       (16384)
 282
 283 /* Maximum plaintext length: defined by SSL/TLS standards */
 284 #define SSL3_RT_MAX_PLAIN_LENGTH                16384
 285 /* Maximum compression overhead: defined by SSL/TLS standards */
 286 #define SSL3_RT_MAX_COMPRESSED_OVERHEAD         1024
 287
 288 /* The standards give a maximum encryption overhead of 1024 bytes.
 289  * In practice the value is lower than this. The overhead is the maximum
 290  * number of padding bytes (256) plus the mac size.
 291  */
 292 #define SSL3_RT_MAX_ENCRYPTED_OVERHEAD  (256 + SSL3_RT_MAX_MD_SIZE)
 293
 294 /* OpenSSL currently only uses a padding length of at most one block so
 295  * the send overhead is smaller.
 296  */
 297
 298 #define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
 299                         (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE)
 300
 301 /* If compression isn't used don't include the compression overhead */
 302
 303 #ifdef OPENSSL_NO_COMP
 304 #define SSL3_RT_MAX_COMPRESSED_LENGTH           SSL3_RT_MAX_PLAIN_LENGTH
 305 #else
 306 #define SSL3_RT_MAX_COMPRESSED_LENGTH   \
 307                 (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD)
 308 #endif
 309 #define SSL3_RT_MAX_ENCRYPTED_LENGTH    \
 310                 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH)
 311 #define SSL3_RT_MAX_PACKET_SIZE         \
 312                 (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
 313
 314 #define SSL3_MD_CLIENT_FINISHED_CONST   "\x43\x4C\x4E\x54"
 315 #define SSL3_MD_SERVER_FINISHED_CONST   "\x53\x52\x56\x52"
 316
 317 #define SSL3_VERSION                    0x0300
 318 #define SSL3_VERSION_MAJOR              0x03
 319 #define SSL3_VERSION_MINOR              0x00
 320
 321 #define SSL3_RT_CHANGE_CIPHER_SPEC      20
 322 #define SSL3_RT_ALERT                   21
 323 #define SSL3_RT_HANDSHAKE               22
 324 #define SSL3_RT_APPLICATION_DATA        23
 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 typedef struct ssl3_record_st
 343         {
 344 /*r */  int type;               /* type of record */
 345 /*rw*/  unsigned int length;    /* How many bytes available */
 346 /*r */  unsigned int off;       /* read/write offset into 'buf' */
 347 /*rw*/  unsigned char *data;    /* pointer to the record data */
 348 /*rw*/  unsigned char *input;   /* where the decode bytes are */
 349 /*r */  unsigned char *comp;    /* only used with decompression - malloc()ed */
 350 /*r */  unsigned long epoch;    /* epoch number, needed by DTLS1 */
 351 /*r */  unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */
 352         } SSL3_RECORD;
 353
 354 typedef struct ssl3_buffer_st
 355         {
 356         unsigned char *buf;     /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
 357                                  * see ssl3_setup_buffers() */
 358         size_t len;             /* buffer size */
 359         int offset;             /* where to 'copy from' */
 360         int left;               /* how many bytes left */
 361         } SSL3_BUFFER;
 362
 363 #define SSL3_CT_RSA_SIGN                        1
 364 #define SSL3_CT_DSS_SIGN                        2
 365 #define SSL3_CT_RSA_FIXED_DH                    3
 366 #define SSL3_CT_DSS_FIXED_DH                    4
 367 #define SSL3_CT_RSA_EPHEMERAL_DH                5
 368 #define SSL3_CT_DSS_EPHEMERAL_DH                6
 369 #define SSL3_CT_FORTEZZA_DMS                    20
 370 /* SSL3_CT_NUMBER is used to size arrays and it must be large
 371  * enough to contain all of the cert types defined either for
 372  * SSLv3 and TLSv1.
 373  */
 374 #define SSL3_CT_NUMBER                  9
 375
 376
 377 #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS       0x0001
 378 #define SSL3_FLAGS_DELAY_CLIENT_FINISHED        0x0002
 379 #define SSL3_FLAGS_POP_BUFFER                   0x0004
 380 #define TLS1_FLAGS_TLS_PADDING_BUG              0x0008
 381 #define TLS1_FLAGS_SKIP_CERT_VERIFY             0x0010
 382
 383 /* SSL3_FLAGS_SGC_RESTART_DONE is set when we
 384  * restart a handshake because of MS SGC and so prevents us
 385  * from restarting the handshake in a loop. It's reset on a
 386  * renegotiation, so effectively limits the client to one restart
 387  * per negotiation. This limits the possibility of a DDoS
 388  * attack where the client handshakes in a loop using SGC to
 389  * restart. Servers which permit renegotiation can still be
 390  * effected, but we can't prevent that.
 391  */
 392 #define SSL3_FLAGS_SGC_RESTART_DONE             0x0040
 393
 394 typedef struct ssl3_state_st
 395         {
 396         long flags;
 397         int delay_buf_pop_ret;
 398
 399         unsigned char read_sequence[8];
 400         int read_mac_secret_size;
 401         unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
 402         unsigned char write_sequence[8];
 403         int write_mac_secret_size;
 404         unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
 405
 406         unsigned char server_random[SSL3_RANDOM_SIZE];
 407         unsigned char client_random[SSL3_RANDOM_SIZE];
 408
 409         /* flags for countermeasure against known-IV weakness */
 410         int need_empty_fragments;
 411         int empty_fragment_done;
 412
 413         /* The value of 'extra' when the buffers were initialized */
 414         int init_extra;
 415
 416         SSL3_BUFFER rbuf;       /* read IO goes into here */
 417         SSL3_BUFFER wbuf;       /* write IO goes into here */
 418
 419         SSL3_RECORD rrec;       /* each decoded record goes in here */
 420         SSL3_RECORD wrec;       /* goes out from here */
 421
 422         /* storage for Alert/Handshake protocol data received but not
 423          * yet processed by ssl3_read_bytes: */
 424         unsigned char alert_fragment[2];
 425         unsigned int alert_fragment_len;
 426         unsigned char handshake_fragment[4];
 427         unsigned int handshake_fragment_len;
 428
 429         /* partial write - check the numbers match */
 430         unsigned int wnum;      /* number of bytes sent so far */
 431         int wpend_tot;          /* number bytes written */
 432         int wpend_type;
 433         int wpend_ret;          /* number of bytes submitted */
 434         const unsigned char *wpend_buf;
 435
 436         /* used during startup, digest all incoming/outgoing packets */
 437         BIO *handshake_buffer;
 438         /* When set of handshake digests is determined, buffer is hashed
 439          * and freed and MD_CTX-es for all required digests are stored in
 440          * this array */
 441         EVP_MD_CTX **handshake_dgst;
 442         /* this is set whenerver we see a change_cipher_spec message
 443          * come in when we are not looking for one */
 444         int change_cipher_spec;
 445
 446         int warn_alert;
 447         int fatal_alert;
 448         /* we allow one fatal and one warning alert to be outstanding,
 449          * send close alert via the warning alert */
 450         int alert_dispatch;
 451         unsigned char send_alert[2];
 452
 453         /* This flag is set when we should renegotiate ASAP, basically when
 454          * there is no more data in the read or write buffers */
 455         int renegotiate;
 456         int total_renegotiations;
 457         int num_renegotiations;
 458
 459         int in_read_app_data;
 460
 461         /* Opaque PRF input as used for the current handshake.
 462          * These fields are used only if TLSEXT_TYPE_opaque_prf_input is defined
 463          * (otherwise, they are merely present to improve binary compatibility) */
 464         void *client_opaque_prf_input;
 465         size_t client_opaque_prf_input_len;
 466         void *server_opaque_prf_input;
 467         size_t server_opaque_prf_input_len;
 468
 469         struct  {
 470                 /* actually only needs to be 16+20 */
 471                 unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
 472
 473                 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
 474                 unsigned char finish_md[EVP_MAX_MD_SIZE*2];
 475                 int finish_md_len;
 476                 unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
 477                 int peer_finish_md_len;
 478
 479                 unsigned long message_size;
 480                 int message_type;
 481
 482                 /* used to hold the new cipher we are going to use */
 483                 const SSL_CIPHER *new_cipher;
 484 #ifndef OPENSSL_NO_DH
 485                 DH *dh;
 486 #endif
 487
 488 #ifndef OPENSSL_NO_ECDH
 489                 EC_KEY *ecdh; /* holds short lived ECDH key */
 490 #endif
 491
 492                 /* used when SSL_ST_FLUSH_DATA is entered */
 493                 int next_state;
 494
 495                 int reuse_message;
 496
 497                 /* used for certificate requests */
 498                 int cert_req;
 499                 int ctype_num;
 500                 char ctype[SSL3_CT_NUMBER];
 501                 STACK_OF(X509_NAME) *ca_names;
 502
 503                 int use_rsa_tmp;
 504
 505                 int key_block_length;
 506                 unsigned char *key_block;
 507
 508                 const EVP_CIPHER *new_sym_enc;
 509                 const EVP_MD *new_hash;
 510                 int new_mac_pkey_type;
 511                 int new_mac_secret_size;
 512 #ifndef OPENSSL_NO_COMP
 513                 const SSL_COMP *new_compression;
 514 #else
 515                 char *new_compression;
 516 #endif
 517                 int cert_request;
 518                 } tmp;
 519
 520         /* Connection binding to prevent renegotiation attacks */
 521         unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
 522         unsigned char previous_client_finished_len;
 523         unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
 524         unsigned char previous_server_finished_len;
 525         int send_connection_binding; /* TODOEKR */
 526         } SSL3_STATE;
 527
 528
 529 /* SSLv3 */
 530 /*client */
 531 /* extra state */
 532 #define SSL3_ST_CW_FLUSH                (0x100|SSL_ST_CONNECT)
 533 /* write to server */
 534 #define SSL3_ST_CW_CLNT_HELLO_A         (0x110|SSL_ST_CONNECT)
 535 #define SSL3_ST_CW_CLNT_HELLO_B         (0x111|SSL_ST_CONNECT)
 536 /* read from server */
 537 #define SSL3_ST_CR_SRVR_HELLO_A         (0x120|SSL_ST_CONNECT)
 538 #define SSL3_ST_CR_SRVR_HELLO_B         (0x121|SSL_ST_CONNECT)
 539 #define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
 540 #define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
 541 #define SSL3_ST_CR_CERT_A               (0x130|SSL_ST_CONNECT)
 542 #define SSL3_ST_CR_CERT_B               (0x131|SSL_ST_CONNECT)
 543 #define SSL3_ST_CR_KEY_EXCH_A           (0x140|SSL_ST_CONNECT)
 544 #define SSL3_ST_CR_KEY_EXCH_B           (0x141|SSL_ST_CONNECT)
 545 #define SSL3_ST_CR_CERT_REQ_A           (0x150|SSL_ST_CONNECT)
 546 #define SSL3_ST_CR_CERT_REQ_B           (0x151|SSL_ST_CONNECT)
 547 #define SSL3_ST_CR_SRVR_DONE_A          (0x160|SSL_ST_CONNECT)
 548 #define SSL3_ST_CR_SRVR_DONE_B          (0x161|SSL_ST_CONNECT)
 549 /* write to server */
 550 #define SSL3_ST_CW_CERT_A               (0x170|SSL_ST_CONNECT)
 551 #define SSL3_ST_CW_CERT_B               (0x171|SSL_ST_CONNECT)
 552 #define SSL3_ST_CW_CERT_C               (0x172|SSL_ST_CONNECT)
 553 #define SSL3_ST_CW_CERT_D               (0x173|SSL_ST_CONNECT)
 554 #define SSL3_ST_CW_KEY_EXCH_A           (0x180|SSL_ST_CONNECT)
 555 #define SSL3_ST_CW_KEY_EXCH_B           (0x181|SSL_ST_CONNECT)
 556 #define SSL3_ST_CW_CERT_VRFY_A          (0x190|SSL_ST_CONNECT)
 557 #define SSL3_ST_CW_CERT_VRFY_B          (0x191|SSL_ST_CONNECT)
 558 #define SSL3_ST_CW_CHANGE_A             (0x1A0|SSL_ST_CONNECT)
 559 #define SSL3_ST_CW_CHANGE_B             (0x1A1|SSL_ST_CONNECT)
 560 #define SSL3_ST_CW_FINISHED_A           (0x1B0|SSL_ST_CONNECT)
 561 #define SSL3_ST_CW_FINISHED_B           (0x1B1|SSL_ST_CONNECT)
 562 /* read from server */
 563 #define SSL3_ST_CR_CHANGE_A             (0x1C0|SSL_ST_CONNECT)
 564 #define SSL3_ST_CR_CHANGE_B             (0x1C1|SSL_ST_CONNECT)
 565 #define SSL3_ST_CR_FINISHED_A           (0x1D0|SSL_ST_CONNECT)
 566 #define SSL3_ST_CR_FINISHED_B           (0x1D1|SSL_ST_CONNECT)
 567 #define SSL3_ST_CR_SESSION_TICKET_A     (0x1E0|SSL_ST_CONNECT)
 568 #define SSL3_ST_CR_SESSION_TICKET_B     (0x1E1|SSL_ST_CONNECT)
 569 #define SSL3_ST_CR_CERT_STATUS_A        (0x1F0|SSL_ST_CONNECT)
 570 #define SSL3_ST_CR_CERT_STATUS_B        (0x1F1|SSL_ST_CONNECT)
 571
 572 /* server */
 573 /* extra state */
 574 #define SSL3_ST_SW_FLUSH                (0x100|SSL_ST_ACCEPT)
 575 /* read from client */
 576 /* Do not change the number values, they do matter */
 577 #define SSL3_ST_SR_CLNT_HELLO_A         (0x110|SSL_ST_ACCEPT)
 578 #define SSL3_ST_SR_CLNT_HELLO_B         (0x111|SSL_ST_ACCEPT)
 579 #define SSL3_ST_SR_CLNT_HELLO_C         (0x112|SSL_ST_ACCEPT)
 580 /* write to client */
 581 #define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
 582 #define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
 583 #define SSL3_ST_SW_HELLO_REQ_A          (0x120|SSL_ST_ACCEPT)
 584 #define SSL3_ST_SW_HELLO_REQ_B          (0x121|SSL_ST_ACCEPT)
 585 #define SSL3_ST_SW_HELLO_REQ_C          (0x122|SSL_ST_ACCEPT)
 586 #define SSL3_ST_SW_SRVR_HELLO_A         (0x130|SSL_ST_ACCEPT)
 587 #define SSL3_ST_SW_SRVR_HELLO_B         (0x131|SSL_ST_ACCEPT)
 588 #define SSL3_ST_SW_CERT_A               (0x140|SSL_ST_ACCEPT)
 589 #define SSL3_ST_SW_CERT_B               (0x141|SSL_ST_ACCEPT)
 590 #define SSL3_ST_SW_KEY_EXCH_A           (0x150|SSL_ST_ACCEPT)
 591 #define SSL3_ST_SW_KEY_EXCH_B           (0x151|SSL_ST_ACCEPT)
 592 #define SSL3_ST_SW_CERT_REQ_A           (0x160|SSL_ST_ACCEPT)
 593 #define SSL3_ST_SW_CERT_REQ_B           (0x161|SSL_ST_ACCEPT)
 594 #define SSL3_ST_SW_SRVR_DONE_A          (0x170|SSL_ST_ACCEPT)
 595 #define SSL3_ST_SW_SRVR_DONE_B          (0x171|SSL_ST_ACCEPT)
 596 /* read from client */
 597 #define SSL3_ST_SR_CERT_A               (0x180|SSL_ST_ACCEPT)
 598 #define SSL3_ST_SR_CERT_B               (0x181|SSL_ST_ACCEPT)
 599 #define SSL3_ST_SR_KEY_EXCH_A           (0x190|SSL_ST_ACCEPT)
 600 #define SSL3_ST_SR_KEY_EXCH_B           (0x191|SSL_ST_ACCEPT)
 601 #define SSL3_ST_SR_CERT_VRFY_A          (0x1A0|SSL_ST_ACCEPT)
 602 #define SSL3_ST_SR_CERT_VRFY_B          (0x1A1|SSL_ST_ACCEPT)
 603 #define SSL3_ST_SR_CHANGE_A             (0x1B0|SSL_ST_ACCEPT)
 604 #define SSL3_ST_SR_CHANGE_B             (0x1B1|SSL_ST_ACCEPT)
 605 #define SSL3_ST_SR_FINISHED_A           (0x1C0|SSL_ST_ACCEPT)
 606 #define SSL3_ST_SR_FINISHED_B           (0x1C1|SSL_ST_ACCEPT)
 607 /* write to client */
 608 #define SSL3_ST_SW_CHANGE_A             (0x1D0|SSL_ST_ACCEPT)
 609 #define SSL3_ST_SW_CHANGE_B             (0x1D1|SSL_ST_ACCEPT)
 610 #define SSL3_ST_SW_FINISHED_A           (0x1E0|SSL_ST_ACCEPT)
 611 #define SSL3_ST_SW_FINISHED_B           (0x1E1|SSL_ST_ACCEPT)
 612 #define SSL3_ST_SW_SESSION_TICKET_A     (0x1F0|SSL_ST_ACCEPT)
 613 #define SSL3_ST_SW_SESSION_TICKET_B     (0x1F1|SSL_ST_ACCEPT)
 614 #define SSL3_ST_SW_CERT_STATUS_A        (0x200|SSL_ST_ACCEPT)
 615 #define SSL3_ST_SW_CERT_STATUS_B        (0x201|SSL_ST_ACCEPT)
 616
 617 #define SSL3_MT_HELLO_REQUEST                   0
 618 #define SSL3_MT_CLIENT_HELLO                    1
 619 #define SSL3_MT_SERVER_HELLO                    2
 620 #define SSL3_MT_NEWSESSION_TICKET               4
 621 #define SSL3_MT_CERTIFICATE                     11
 622 #define SSL3_MT_SERVER_KEY_EXCHANGE             12
 623 #define SSL3_MT_CERTIFICATE_REQUEST             13
 624 #define SSL3_MT_SERVER_DONE                     14
 625 #define SSL3_MT_CERTIFICATE_VERIFY              15
 626 #define SSL3_MT_CLIENT_KEY_EXCHANGE             16
 627 #define SSL3_MT_FINISHED                        20
 628 #define SSL3_MT_CERTIFICATE_STATUS              22
 629 #define DTLS1_MT_HELLO_VERIFY_REQUEST    3
 630
 631
 632 #define SSL3_MT_CCS                             1
 633
 634 /* These are used when changing over to a new cipher */
 635 #define SSL3_CC_READ            0x01
 636 #define SSL3_CC_WRITE           0x02
 637 #define SSL3_CC_CLIENT          0x10
 638 #define SSL3_CC_SERVER          0x20
 639 #define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
 640 #define SSL3_CHANGE_CIPHER_SERVER_READ  (SSL3_CC_SERVER|SSL3_CC_READ)
 641 #define SSL3_CHANGE_CIPHER_CLIENT_READ  (SSL3_CC_CLIENT|SSL3_CC_READ)
 642 #define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
 643
 644 #ifdef  __cplusplus
 645 }
 646 #endif
 647 #endif
 648