ssl3.h revision 273415
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/* Signalling cipher suite value from RFC 5746 133 * (TLS_EMPTY_RENEGOTIATION_INFO_SCSV) */ 134#define SSL3_CK_SCSV 0x030000FF 135 136/* Signalling cipher suite value from draft-ietf-tls-downgrade-scsv-00 137 * (TLS_FALLBACK_SCSV) */ 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_EDH_DSS_DES_40_CBC_SHA 0x03000011 159#define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012 160#define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013 161#define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014 162#define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015 163#define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016 164 165#define SSL3_CK_ADH_RC4_40_MD5 0x03000017 166#define SSL3_CK_ADH_RC4_128_MD5 0x03000018 167#define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019 168#define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A 169#define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B 170 171#define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C 172#define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D 173#if 0 /* Because it clashes with KRB5, is never used any more, and is safe 174 to remove according to David Hopwood <david.hopwood@zetnet.co.uk> 175 of the ietf-tls list */ 176#define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E 177#endif 178 179/* VRS Additional Kerberos5 entries 180 */ 181#define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E 182#define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F 183#define SSL3_CK_KRB5_RC4_128_SHA 0x03000020 184#define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021 185#define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022 186#define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023 187#define SSL3_CK_KRB5_RC4_128_MD5 0x03000024 188#define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025 189 190#define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026 191#define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027 192#define SSL3_CK_KRB5_RC4_40_SHA 0x03000028 193#define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029 194#define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A 195#define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B 196 197#define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5" 198#define SSL3_TXT_RSA_NULL_SHA "NULL-SHA" 199#define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5" 200#define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5" 201#define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA" 202#define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5" 203#define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA" 204#define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA" 205#define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA" 206#define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA" 207 208#define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA" 209#define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA" 210#define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA" 211#define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA" 212#define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA" 213#define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA" 214 215#define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA" 216#define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA" 217#define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA" 218#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA" 219#define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA" 220#define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA" 221 222#define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5" 223#define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5" 224#define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA" 225#define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA" 226#define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA" 227 228#define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA" 229#define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA" 230#define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA" 231 232#define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA" 233#define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA" 234#define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA" 235#define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA" 236#define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5" 237#define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5" 238#define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5" 239#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5" 240 241#define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA" 242#define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA" 243#define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA" 244#define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5" 245#define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5" 246#define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5" 247 248#define SSL3_SSL_SESSION_ID_LENGTH 32 249#define SSL3_MAX_SSL_SESSION_ID_LENGTH 32 250 251#define SSL3_MASTER_SECRET_SIZE 48 252#define SSL3_RANDOM_SIZE 32 253#define SSL3_SESSION_ID_SIZE 32 254#define SSL3_RT_HEADER_LENGTH 5 255 256/* Due to MS stuffing up, this can change.... */ 257#if defined(OPENSSL_SYS_WIN16) || \ 258 (defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32)) 259#define SSL3_RT_MAX_EXTRA (14000) 260#else 261#define SSL3_RT_MAX_EXTRA (16384) 262#endif 263 264#define SSL3_RT_MAX_PLAIN_LENGTH 16384 265#ifdef OPENSSL_NO_COMP 266#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH 267#else 268#define SSL3_RT_MAX_COMPRESSED_LENGTH (1024+SSL3_RT_MAX_PLAIN_LENGTH) 269#endif 270#define SSL3_RT_MAX_ENCRYPTED_LENGTH (1024+SSL3_RT_MAX_COMPRESSED_LENGTH) 271#define SSL3_RT_MAX_PACKET_SIZE (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH) 272#define SSL3_RT_MAX_DATA_SIZE (1024*1024) 273 274#define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" 275#define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" 276 277#define SSL3_VERSION 0x0300 278#define SSL3_VERSION_MAJOR 0x03 279#define SSL3_VERSION_MINOR 0x00 280 281#define SSL3_RT_CHANGE_CIPHER_SPEC 20 282#define SSL3_RT_ALERT 21 283#define SSL3_RT_HANDSHAKE 22 284#define SSL3_RT_APPLICATION_DATA 23 285 286#define SSL3_AL_WARNING 1 287#define SSL3_AL_FATAL 2 288 289#define SSL3_AD_CLOSE_NOTIFY 0 290#define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */ 291#define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */ 292#define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */ 293#define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */ 294#define SSL3_AD_NO_CERTIFICATE 41 295#define SSL3_AD_BAD_CERTIFICATE 42 296#define SSL3_AD_UNSUPPORTED_CERTIFICATE 43 297#define SSL3_AD_CERTIFICATE_REVOKED 44 298#define SSL3_AD_CERTIFICATE_EXPIRED 45 299#define SSL3_AD_CERTIFICATE_UNKNOWN 46 300#define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */ 301 302typedef struct ssl3_record_st 303 { 304/*r */ int type; /* type of record */ 305/*rw*/ unsigned int length; /* How many bytes available */ 306/*r */ unsigned int off; /* read/write offset into 'buf' */ 307/*rw*/ unsigned char *data; /* pointer to the record data */ 308/*rw*/ unsigned char *input; /* where the decode bytes are */ 309/*r */ unsigned char *comp; /* only used with decompression - malloc()ed */ 310/*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */ 311/*r */ PQ_64BIT seq_num; /* sequence number, needed by DTLS1 */ 312 } SSL3_RECORD; 313 314typedef struct ssl3_buffer_st 315 { 316 unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes, 317 * see ssl3_setup_buffers() */ 318 size_t len; /* buffer size */ 319 int offset; /* where to 'copy from' */ 320 int left; /* how many bytes left */ 321 } SSL3_BUFFER; 322 323#define SSL3_CT_RSA_SIGN 1 324#define SSL3_CT_DSS_SIGN 2 325#define SSL3_CT_RSA_FIXED_DH 3 326#define SSL3_CT_DSS_FIXED_DH 4 327#define SSL3_CT_RSA_EPHEMERAL_DH 5 328#define SSL3_CT_DSS_EPHEMERAL_DH 6 329#define SSL3_CT_FORTEZZA_DMS 20 330/* SSL3_CT_NUMBER is used to size arrays and it must be large 331 * enough to contain all of the cert types defined either for 332 * SSLv3 and TLSv1. 333 */ 334#define SSL3_CT_NUMBER 7 335 336 337#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001 338#define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002 339#define SSL3_FLAGS_POP_BUFFER 0x0004 340#define TLS1_FLAGS_TLS_PADDING_BUG 0x0008 341#define SSL3_FLAGS_CCS_OK 0x0080 342 343/* SSL3_FLAGS_SGC_RESTART_DONE is set when we 344 * restart a handshake because of MS SGC and so prevents us 345 * from restarting the handshake in a loop. It's reset on a 346 * renegotiation, so effectively limits the client to one restart 347 * per negotiation. This limits the possibility of a DDoS 348 * attack where the client handshakes in a loop using SGC to 349 * restart. Servers which permit renegotiation can still be 350 * effected, but we can't prevent that. 351 */ 352#define SSL3_FLAGS_SGC_RESTART_DONE 0x0040 353 354typedef struct ssl3_state_st 355 { 356 long flags; 357 int delay_buf_pop_ret; 358 359 unsigned char read_sequence[8]; 360 unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; 361 unsigned char write_sequence[8]; 362 unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; 363 364 unsigned char server_random[SSL3_RANDOM_SIZE]; 365 unsigned char client_random[SSL3_RANDOM_SIZE]; 366 367 /* flags for countermeasure against known-IV weakness */ 368 int need_empty_fragments; 369 int empty_fragment_done; 370 371 SSL3_BUFFER rbuf; /* read IO goes into here */ 372 SSL3_BUFFER wbuf; /* write IO goes into here */ 373 374 SSL3_RECORD rrec; /* each decoded record goes in here */ 375 SSL3_RECORD wrec; /* goes out from here */ 376 377 /* storage for Alert/Handshake protocol data received but not 378 * yet processed by ssl3_read_bytes: */ 379 unsigned char alert_fragment[2]; 380 unsigned int alert_fragment_len; 381 unsigned char handshake_fragment[4]; 382 unsigned int handshake_fragment_len; 383 384 /* partial write - check the numbers match */ 385 unsigned int wnum; /* number of bytes sent so far */ 386 int wpend_tot; /* number bytes written */ 387 int wpend_type; 388 int wpend_ret; /* number of bytes submitted */ 389 const unsigned char *wpend_buf; 390 391 /* used during startup, digest all incoming/outgoing packets */ 392 EVP_MD_CTX finish_dgst1; 393 EVP_MD_CTX finish_dgst2; 394 395 /* this is set whenerver we see a change_cipher_spec message 396 * come in when we are not looking for one */ 397 int change_cipher_spec; 398 399 int warn_alert; 400 int fatal_alert; 401 /* we allow one fatal and one warning alert to be outstanding, 402 * send close alert via the warning alert */ 403 int alert_dispatch; 404 unsigned char send_alert[2]; 405 406 /* This flag is set when we should renegotiate ASAP, basically when 407 * there is no more data in the read or write buffers */ 408 int renegotiate; 409 int total_renegotiations; 410 int num_renegotiations; 411 412 int in_read_app_data; 413 414 struct { 415 /* actually only needs to be 16+20 */ 416 unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2]; 417 418 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ 419 unsigned char finish_md[EVP_MAX_MD_SIZE*2]; 420 int finish_md_len; 421 unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2]; 422 int peer_finish_md_len; 423 424 unsigned long message_size; 425 int message_type; 426 427 /* used to hold the new cipher we are going to use */ 428 SSL_CIPHER *new_cipher; 429#ifndef OPENSSL_NO_DH 430 DH *dh; 431#endif 432 433#ifndef OPENSSL_NO_ECDH 434 EC_KEY *ecdh; /* holds short lived ECDH key */ 435#endif 436 437 /* used when SSL_ST_FLUSH_DATA is entered */ 438 int next_state; 439 440 int reuse_message; 441 442 /* used for certificate requests */ 443 int cert_req; 444 int ctype_num; 445 char ctype[SSL3_CT_NUMBER]; 446 STACK_OF(X509_NAME) *ca_names; 447 448 int use_rsa_tmp; 449 450 int key_block_length; 451 unsigned char *key_block; 452 453 const EVP_CIPHER *new_sym_enc; 454 const EVP_MD *new_hash; 455#ifndef OPENSSL_NO_COMP 456 const SSL_COMP *new_compression; 457#else 458 char *new_compression; 459#endif 460 int cert_request; 461 } tmp; 462 463 /* Connection binding to prevent renegotiation attacks */ 464 unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; 465 unsigned char previous_client_finished_len; 466 unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; 467 unsigned char previous_server_finished_len; 468 int send_connection_binding; /* TODOEKR */ 469 470#ifndef OPENSSL_NO_TLSEXT 471#ifndef OPENSSL_NO_EC 472 /* This is set to true if we believe that this is a version of Safari 473 * running on OS X 10.6 or newer. We wish to know this because Safari 474 * on 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. */ 475 char is_probably_safari; 476#endif /* !OPENSSL_NO_EC */ 477#endif /* !OPENSSL_NO_TLSEXT */ 478 } SSL3_STATE; 479 480 481/* SSLv3 */ 482/*client */ 483/* extra state */ 484#define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT) 485/* write to server */ 486#define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT) 487#define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT) 488/* read from server */ 489#define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT) 490#define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT) 491#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT) 492#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT) 493#define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT) 494#define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT) 495#define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT) 496#define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT) 497#define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT) 498#define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT) 499#define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT) 500#define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT) 501/* write to server */ 502#define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT) 503#define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT) 504#define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT) 505#define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT) 506#define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT) 507#define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT) 508#define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT) 509#define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT) 510#define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT) 511#define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT) 512#define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT) 513#define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT) 514/* read from server */ 515#define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT) 516#define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT) 517#define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT) 518#define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT) 519#define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT) 520#define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT) 521#define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT) 522#define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT) 523 524/* server */ 525/* extra state */ 526#define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT) 527/* read from client */ 528/* Do not change the number values, they do matter */ 529#define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT) 530#define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT) 531#define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT) 532/* write to client */ 533#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT) 534#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT) 535#define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT) 536#define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT) 537#define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT) 538#define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT) 539#define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT) 540#define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT) 541#define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT) 542#define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT) 543#define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT) 544#define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT) 545#define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT) 546#define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT) 547#define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT) 548/* read from client */ 549#define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT) 550#define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT) 551#define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT) 552#define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT) 553#define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT) 554#define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT) 555#define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT) 556#define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT) 557#define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT) 558#define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT) 559/* write to client */ 560#define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT) 561#define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT) 562#define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT) 563#define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT) 564#define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT) 565#define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT) 566#define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT) 567#define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT) 568 569#define SSL3_MT_HELLO_REQUEST 0 570#define SSL3_MT_CLIENT_HELLO 1 571#define SSL3_MT_SERVER_HELLO 2 572#define SSL3_MT_NEWSESSION_TICKET 4 573#define SSL3_MT_CERTIFICATE 11 574#define SSL3_MT_SERVER_KEY_EXCHANGE 12 575#define SSL3_MT_CERTIFICATE_REQUEST 13 576#define SSL3_MT_SERVER_DONE 14 577#define SSL3_MT_CERTIFICATE_VERIFY 15 578#define SSL3_MT_CLIENT_KEY_EXCHANGE 16 579#define SSL3_MT_FINISHED 20 580#define SSL3_MT_CERTIFICATE_STATUS 22 581#define DTLS1_MT_HELLO_VERIFY_REQUEST 3 582 583 584#define SSL3_MT_CCS 1 585 586/* These are used when changing over to a new cipher */ 587#define SSL3_CC_READ 0x01 588#define SSL3_CC_WRITE 0x02 589#define SSL3_CC_CLIENT 0x10 590#define SSL3_CC_SERVER 0x20 591#define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE) 592#define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ) 593#define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ) 594#define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE) 595 596#ifdef __cplusplus 597} 598#endif 599#endif 600 601