ssl3.h revision 296465
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# include <openssl/pq_compat.h> 127 128#ifdef __cplusplus 129extern "C" { 130#endif 131 132/* 133 * Signalling cipher suite value from RFC 5746 134 * (TLS_EMPTY_RENEGOTIATION_INFO_SCSV) 135 */ 136# define SSL3_CK_SCSV 0x030000FF 137 138/* 139 * Signalling cipher suite value from draft-ietf-tls-downgrade-scsv-00 140 * (TLS_FALLBACK_SCSV) 141 */ 142# define SSL3_CK_FALLBACK_SCSV 0x03005600 143 144# define SSL3_CK_RSA_NULL_MD5 0x03000001 145# define SSL3_CK_RSA_NULL_SHA 0x03000002 146# define SSL3_CK_RSA_RC4_40_MD5 0x03000003 147# define SSL3_CK_RSA_RC4_128_MD5 0x03000004 148# define SSL3_CK_RSA_RC4_128_SHA 0x03000005 149# define SSL3_CK_RSA_RC2_40_MD5 0x03000006 150# define SSL3_CK_RSA_IDEA_128_SHA 0x03000007 151# define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008 152# define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009 153# define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A 154 155# define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B 156# define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C 157# define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D 158# define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E 159# define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F 160# define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010 161 162# define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011 163# define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012 164# define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013 165# define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014 166# define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015 167# define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016 168 169# define SSL3_CK_ADH_RC4_40_MD5 0x03000017 170# define SSL3_CK_ADH_RC4_128_MD5 0x03000018 171# define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019 172# define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A 173# define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B 174 175# define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C 176# define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D 177# if 0 /* Because it clashes with KRB5, is never 178 * used any more, and is safe to remove 179 * according to David Hopwood 180 * <david.hopwood@zetnet.co.uk> of the 181 * ietf-tls list */ 182# define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E 183# endif 184 185/* 186 * VRS Additional Kerberos5 entries 187 */ 188# define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E 189# define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F 190# define SSL3_CK_KRB5_RC4_128_SHA 0x03000020 191# define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021 192# define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022 193# define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023 194# define SSL3_CK_KRB5_RC4_128_MD5 0x03000024 195# define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025 196 197# define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026 198# define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027 199# define SSL3_CK_KRB5_RC4_40_SHA 0x03000028 200# define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029 201# define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A 202# define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B 203 204# define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5" 205# define SSL3_TXT_RSA_NULL_SHA "NULL-SHA" 206# define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5" 207# define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5" 208# define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA" 209# define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5" 210# define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA" 211# define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA" 212# define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA" 213# define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA" 214 215# define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA" 216# define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA" 217# define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA" 218# define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA" 219# define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA" 220# define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA" 221 222# define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA" 223# define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA" 224# define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA" 225# define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA" 226# define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA" 227# define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA" 228 229# define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5" 230# define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5" 231# define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA" 232# define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA" 233# define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA" 234 235# define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA" 236# define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA" 237# define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA" 238 239# define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA" 240# define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA" 241# define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA" 242# define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA" 243# define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5" 244# define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5" 245# define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5" 246# define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5" 247 248# define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA" 249# define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA" 250# define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA" 251# define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5" 252# define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5" 253# define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5" 254 255# define SSL3_SSL_SESSION_ID_LENGTH 32 256# define SSL3_MAX_SSL_SESSION_ID_LENGTH 32 257 258# define SSL3_MASTER_SECRET_SIZE 48 259# define SSL3_RANDOM_SIZE 32 260# define SSL3_SESSION_ID_SIZE 32 261# define SSL3_RT_HEADER_LENGTH 5 262 263/* Due to MS stuffing up, this can change.... */ 264# if defined(OPENSSL_SYS_WIN16) || \ 265 (defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32)) 266# define SSL3_RT_MAX_EXTRA (14000) 267# else 268# define SSL3_RT_MAX_EXTRA (16384) 269# endif 270 271# define SSL3_RT_MAX_PLAIN_LENGTH 16384 272# ifdef OPENSSL_NO_COMP 273# define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH 274# else 275# define SSL3_RT_MAX_COMPRESSED_LENGTH (1024+SSL3_RT_MAX_PLAIN_LENGTH) 276# endif 277# define SSL3_RT_MAX_ENCRYPTED_LENGTH (1024+SSL3_RT_MAX_COMPRESSED_LENGTH) 278# define SSL3_RT_MAX_PACKET_SIZE (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH) 279# define SSL3_RT_MAX_DATA_SIZE (1024*1024) 280 281# define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" 282# define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" 283 284# define SSL3_VERSION 0x0300 285# define SSL3_VERSION_MAJOR 0x03 286# define SSL3_VERSION_MINOR 0x00 287 288# define SSL3_RT_CHANGE_CIPHER_SPEC 20 289# define SSL3_RT_ALERT 21 290# define SSL3_RT_HANDSHAKE 22 291# define SSL3_RT_APPLICATION_DATA 23 292 293# define SSL3_AL_WARNING 1 294# define SSL3_AL_FATAL 2 295 296# define SSL3_AD_CLOSE_NOTIFY 0 297# define SSL3_AD_UNEXPECTED_MESSAGE 10/* fatal */ 298# define SSL3_AD_BAD_RECORD_MAC 20/* fatal */ 299# define SSL3_AD_DECOMPRESSION_FAILURE 30/* fatal */ 300# define SSL3_AD_HANDSHAKE_FAILURE 40/* fatal */ 301# define SSL3_AD_NO_CERTIFICATE 41 302# define SSL3_AD_BAD_CERTIFICATE 42 303# define SSL3_AD_UNSUPPORTED_CERTIFICATE 43 304# define SSL3_AD_CERTIFICATE_REVOKED 44 305# define SSL3_AD_CERTIFICATE_EXPIRED 45 306# define SSL3_AD_CERTIFICATE_UNKNOWN 46 307# define SSL3_AD_ILLEGAL_PARAMETER 47/* fatal */ 308 309typedef struct ssl3_record_st { 310 /* type of record */ 311 /* 312 * r 313 */ int type; 314 /* How many bytes available */ 315 /* 316 * rw 317 */ unsigned int length; 318 /* read/write offset into 'buf' */ 319 /* 320 * r 321 */ unsigned int off; 322 /* pointer to the record data */ 323 /* 324 * rw 325 */ unsigned char *data; 326 /* where the decode bytes are */ 327 /* 328 * rw 329 */ unsigned char *input; 330 /* only used with decompression - malloc()ed */ 331 /* 332 * r 333 */ unsigned char *comp; 334 /* epoch number, needed by DTLS1 */ 335 /* 336 * r 337 */ unsigned long epoch; 338 /* sequence number, needed by DTLS1 */ 339 /* 340 * r 341 */ PQ_64BIT seq_num; 342} SSL3_RECORD; 343 344typedef struct ssl3_buffer_st { 345 /* at least SSL3_RT_MAX_PACKET_SIZE bytes, see ssl3_setup_buffers() */ 346 unsigned char *buf; 347 /* buffer size */ 348 size_t len; 349 /* where to 'copy from' */ 350 int offset; 351 /* how many bytes left */ 352 int left; 353} SSL3_BUFFER; 354 355# define SSL3_CT_RSA_SIGN 1 356# define SSL3_CT_DSS_SIGN 2 357# define SSL3_CT_RSA_FIXED_DH 3 358# define SSL3_CT_DSS_FIXED_DH 4 359# define SSL3_CT_RSA_EPHEMERAL_DH 5 360# define SSL3_CT_DSS_EPHEMERAL_DH 6 361# define SSL3_CT_FORTEZZA_DMS 20 362/* 363 * SSL3_CT_NUMBER is used to size arrays and it must be large enough to 364 * contain all of the cert types defined either for SSLv3 and TLSv1. 365 */ 366# define SSL3_CT_NUMBER 7 367 368# define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001 369# define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002 370# define SSL3_FLAGS_POP_BUFFER 0x0004 371# define TLS1_FLAGS_TLS_PADDING_BUG 0x0008 372# define SSL3_FLAGS_CCS_OK 0x0080 373 374/* 375 * SSL3_FLAGS_SGC_RESTART_DONE is set when we restart a handshake because of 376 * MS SGC and so prevents us from restarting the handshake in a loop. It's 377 * reset on a renegotiation, so effectively limits the client to one restart 378 * per negotiation. This limits the possibility of a DDoS attack where the 379 * client handshakes in a loop using SGC to restart. Servers which permit 380 * renegotiation can still be effected, but we can't prevent that. 381 */ 382# define SSL3_FLAGS_SGC_RESTART_DONE 0x0040 383 384typedef struct ssl3_state_st { 385 long flags; 386 int delay_buf_pop_ret; 387 unsigned char read_sequence[8]; 388 unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; 389 unsigned char write_sequence[8]; 390 unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; 391 unsigned char server_random[SSL3_RANDOM_SIZE]; 392 unsigned char client_random[SSL3_RANDOM_SIZE]; 393 /* flags for countermeasure against known-IV weakness */ 394 int need_empty_fragments; 395 int empty_fragment_done; 396 SSL3_BUFFER rbuf; /* read IO goes into here */ 397 SSL3_BUFFER wbuf; /* write IO goes into here */ 398 SSL3_RECORD rrec; /* each decoded record goes in here */ 399 SSL3_RECORD wrec; /* goes out from here */ 400 /* 401 * storage for Alert/Handshake protocol data received but not yet 402 * processed by ssl3_read_bytes: 403 */ 404 unsigned char alert_fragment[2]; 405 unsigned int alert_fragment_len; 406 unsigned char handshake_fragment[4]; 407 unsigned int handshake_fragment_len; 408 /* partial write - check the numbers match */ 409 unsigned int wnum; /* number of bytes sent so far */ 410 int wpend_tot; /* number bytes written */ 411 int wpend_type; 412 int wpend_ret; /* number of bytes submitted */ 413 const unsigned char *wpend_buf; 414 /* used during startup, digest all incoming/outgoing packets */ 415 EVP_MD_CTX finish_dgst1; 416 EVP_MD_CTX finish_dgst2; 417 /* 418 * this is set whenerver we see a change_cipher_spec message come in when 419 * we are not looking for one 420 */ 421 int change_cipher_spec; 422 int warn_alert; 423 int fatal_alert; 424 /* 425 * we allow one fatal and one warning alert to be outstanding, send close 426 * alert via the warning alert 427 */ 428 int alert_dispatch; 429 unsigned char send_alert[2]; 430 /* 431 * This flag is set when we should renegotiate ASAP, basically when there 432 * is no more data in the read or write buffers 433 */ 434 int renegotiate; 435 int total_renegotiations; 436 int num_renegotiations; 437 int in_read_app_data; 438 struct { 439 /* actually only needs to be 16+20 */ 440 unsigned char cert_verify_md[EVP_MAX_MD_SIZE * 2]; 441 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ 442 unsigned char finish_md[EVP_MAX_MD_SIZE * 2]; 443 int finish_md_len; 444 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2]; 445 int peer_finish_md_len; 446 unsigned long message_size; 447 int message_type; 448 /* used to hold the new cipher we are going to use */ 449 SSL_CIPHER *new_cipher; 450# ifndef OPENSSL_NO_DH 451 DH *dh; 452# endif 453# ifndef OPENSSL_NO_ECDH 454 EC_KEY *ecdh; /* holds short lived ECDH key */ 455# endif 456 /* used when SSL_ST_FLUSH_DATA is entered */ 457 int next_state; 458 int reuse_message; 459 /* used for certificate requests */ 460 int cert_req; 461 int ctype_num; 462 char ctype[SSL3_CT_NUMBER]; 463 STACK_OF(X509_NAME) *ca_names; 464 int use_rsa_tmp; 465 int key_block_length; 466 unsigned char *key_block; 467 const EVP_CIPHER *new_sym_enc; 468 const EVP_MD *new_hash; 469# ifndef OPENSSL_NO_COMP 470 const SSL_COMP *new_compression; 471# else 472 char *new_compression; 473# endif 474 int cert_request; 475 } tmp; 476 477 /* Connection binding to prevent renegotiation attacks */ 478 unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; 479 unsigned char previous_client_finished_len; 480 unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; 481 unsigned char previous_server_finished_len; 482 int send_connection_binding; /* TODOEKR */ 483 484# ifndef OPENSSL_NO_TLSEXT 485# ifndef OPENSSL_NO_EC 486 /* 487 * This is set to true if we believe that this is a version of Safari 488 * running on OS X 10.6 or newer. We wish to know this because Safari on 489 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. 490 */ 491 char is_probably_safari; 492# endif /* !OPENSSL_NO_EC */ 493# endif /* !OPENSSL_NO_TLSEXT */ 494} SSL3_STATE; 495 496/* SSLv3 */ 497/* 498 * client 499 */ 500/* extra state */ 501# define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT) 502/* write to server */ 503# define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT) 504# define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT) 505/* read from server */ 506# define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT) 507# define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT) 508# define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT) 509# define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT) 510# define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT) 511# define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT) 512# define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT) 513# define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT) 514# define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT) 515# define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT) 516# define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT) 517# define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT) 518/* write to server */ 519# define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT) 520# define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT) 521# define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT) 522# define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT) 523# define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT) 524# define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT) 525# define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT) 526# define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT) 527# define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT) 528# define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT) 529# define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT) 530# define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT) 531/* read from server */ 532# define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT) 533# define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT) 534# define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT) 535# define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT) 536# define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT) 537# define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT) 538# define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT) 539# define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT) 540 541/* server */ 542/* extra state */ 543# define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT) 544/* read from client */ 545/* Do not change the number values, they do matter */ 546# define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT) 547# define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT) 548# define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT) 549/* write to client */ 550# define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT) 551# define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT) 552# define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT) 553# define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT) 554# define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT) 555# define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT) 556# define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT) 557# define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT) 558# define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT) 559# define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT) 560# define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT) 561# define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT) 562# define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT) 563# define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT) 564# define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT) 565/* read from client */ 566# define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT) 567# define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT) 568# define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT) 569# define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT) 570# define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT) 571# define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT) 572# define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT) 573# define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT) 574# define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT) 575# define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT) 576/* write to client */ 577# define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT) 578# define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT) 579# define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT) 580# define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT) 581# define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT) 582# define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT) 583# define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT) 584# define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT) 585 586# define SSL3_MT_HELLO_REQUEST 0 587# define SSL3_MT_CLIENT_HELLO 1 588# define SSL3_MT_SERVER_HELLO 2 589# define SSL3_MT_NEWSESSION_TICKET 4 590# define SSL3_MT_CERTIFICATE 11 591# define SSL3_MT_SERVER_KEY_EXCHANGE 12 592# define SSL3_MT_CERTIFICATE_REQUEST 13 593# define SSL3_MT_SERVER_DONE 14 594# define SSL3_MT_CERTIFICATE_VERIFY 15 595# define SSL3_MT_CLIENT_KEY_EXCHANGE 16 596# define SSL3_MT_FINISHED 20 597# define SSL3_MT_CERTIFICATE_STATUS 22 598# define DTLS1_MT_HELLO_VERIFY_REQUEST 3 599 600# define SSL3_MT_CCS 1 601 602/* These are used when changing over to a new cipher */ 603# define SSL3_CC_READ 0x01 604# define SSL3_CC_WRITE 0x02 605# define SSL3_CC_CLIENT 0x10 606# define SSL3_CC_SERVER 0x20 607# define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE) 608# define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ) 609# define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ) 610# define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE) 611 612#ifdef __cplusplus 613} 614#endif 615#endif 616