ssl3.h revision 279264
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 128extern "C" { 129#endif 130 131/* Signalling cipher suite value from RFC 5746 132 * (TLS_EMPTY_RENEGOTIATION_INFO_SCSV) */ 133#define SSL3_CK_SCSV 0x030000FF 134 135/* Signalling cipher suite value from draft-ietf-tls-downgrade-scsv-00 136 * (TLS_FALLBACK_SCSV) */ 137#define SSL3_CK_FALLBACK_SCSV 0x03005600 138 139#define SSL3_CK_RSA_NULL_MD5 0x03000001 140#define SSL3_CK_RSA_NULL_SHA 0x03000002 141#define SSL3_CK_RSA_RC4_40_MD5 0x03000003 142#define SSL3_CK_RSA_RC4_128_MD5 0x03000004 143#define SSL3_CK_RSA_RC4_128_SHA 0x03000005 144#define SSL3_CK_RSA_RC2_40_MD5 0x03000006 145#define SSL3_CK_RSA_IDEA_128_SHA 0x03000007 146#define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008 147#define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009 148#define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A 149 150#define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B 151#define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C 152#define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D 153#define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E 154#define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F 155#define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010 156 157#define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011 158#define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012 159#define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013 160#define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014 161#define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015 162#define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016 163 164#define SSL3_CK_ADH_RC4_40_MD5 0x03000017 165#define SSL3_CK_ADH_RC4_128_MD5 0x03000018 166#define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019 167#define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A 168#define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B 169 170#if 0 171 #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#endif 179 180/* VRS Additional Kerberos5 entries 181 */ 182#define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E 183#define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F 184#define SSL3_CK_KRB5_RC4_128_SHA 0x03000020 185#define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021 186#define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022 187#define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023 188#define SSL3_CK_KRB5_RC4_128_MD5 0x03000024 189#define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025 190 191#define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026 192#define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027 193#define SSL3_CK_KRB5_RC4_40_SHA 0x03000028 194#define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029 195#define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A 196#define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B 197 198#define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5" 199#define SSL3_TXT_RSA_NULL_SHA "NULL-SHA" 200#define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5" 201#define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5" 202#define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA" 203#define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5" 204#define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA" 205#define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA" 206#define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA" 207#define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA" 208 209#define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA" 210#define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA" 211#define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA" 212#define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA" 213#define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA" 214#define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA" 215 216#define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA" 217#define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA" 218#define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA" 219#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA" 220#define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA" 221#define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA" 222 223#define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5" 224#define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5" 225#define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA" 226#define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA" 227#define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA" 228 229#if 0 230 #define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA" 231 #define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA" 232 #define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA" 233#endif 234 235#define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA" 236#define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA" 237#define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA" 238#define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA" 239#define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5" 240#define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5" 241#define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5" 242#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5" 243 244#define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA" 245#define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA" 246#define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA" 247#define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5" 248#define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5" 249#define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5" 250 251#define SSL3_SSL_SESSION_ID_LENGTH 32 252#define SSL3_MAX_SSL_SESSION_ID_LENGTH 32 253 254#define SSL3_MASTER_SECRET_SIZE 48 255#define SSL3_RANDOM_SIZE 32 256#define SSL3_SESSION_ID_SIZE 32 257#define SSL3_RT_HEADER_LENGTH 5 258 259#ifndef SSL3_ALIGN_PAYLOAD 260 /* Some will argue that this increases memory footprint, but it's 261 * not actually true. Point is that malloc has to return at least 262 * 64-bit aligned pointers, meaning that allocating 5 bytes wastes 263 * 3 bytes in either case. Suggested pre-gaping simply moves these 264 * wasted bytes from the end of allocated region to its front, 265 * but makes data payload aligned, which improves performance:-) */ 266# define SSL3_ALIGN_PAYLOAD 8 267#else 268# if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0 269# error "insane SSL3_ALIGN_PAYLOAD" 270# undef SSL3_ALIGN_PAYLOAD 271# endif 272#endif 273 274/* This is the maximum MAC (digest) size used by the SSL library. 275 * Currently maximum of 20 is used by SHA1, but we reserve for 276 * future extension for 512-bit hashes. 277 */ 278 279#define SSL3_RT_MAX_MD_SIZE 64 280 281/* Maximum block size used in all ciphersuites. Currently 16 for AES. 282 */ 283 284#define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16 285 286#define SSL3_RT_MAX_EXTRA (16384) 287 288/* Maximum plaintext length: defined by SSL/TLS standards */ 289#define SSL3_RT_MAX_PLAIN_LENGTH 16384 290/* Maximum compression overhead: defined by SSL/TLS standards */ 291#define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024 292 293/* The standards give a maximum encryption overhead of 1024 bytes. 294 * In practice the value is lower than this. The overhead is the maximum 295 * number of padding bytes (256) plus the mac size. 296 */ 297#define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE) 298 299/* OpenSSL currently only uses a padding length of at most one block so 300 * the send overhead is smaller. 301 */ 302 303#define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \ 304 (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE) 305 306/* If compression isn't used don't include the compression overhead */ 307 308#ifdef OPENSSL_NO_COMP 309#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH 310#else 311#define SSL3_RT_MAX_COMPRESSED_LENGTH \ 312 (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD) 313#endif 314#define SSL3_RT_MAX_ENCRYPTED_LENGTH \ 315 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH) 316#define SSL3_RT_MAX_PACKET_SIZE \ 317 (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH) 318 319#define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" 320#define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" 321 322#define SSL3_VERSION 0x0300 323#define SSL3_VERSION_MAJOR 0x03 324#define SSL3_VERSION_MINOR 0x00 325 326#define SSL3_RT_CHANGE_CIPHER_SPEC 20 327#define SSL3_RT_ALERT 21 328#define SSL3_RT_HANDSHAKE 22 329#define SSL3_RT_APPLICATION_DATA 23 330#define TLS1_RT_HEARTBEAT 24 331 332#define SSL3_AL_WARNING 1 333#define SSL3_AL_FATAL 2 334 335#define SSL3_AD_CLOSE_NOTIFY 0 336#define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */ 337#define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */ 338#define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */ 339#define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */ 340#define SSL3_AD_NO_CERTIFICATE 41 341#define SSL3_AD_BAD_CERTIFICATE 42 342#define SSL3_AD_UNSUPPORTED_CERTIFICATE 43 343#define SSL3_AD_CERTIFICATE_REVOKED 44 344#define SSL3_AD_CERTIFICATE_EXPIRED 45 345#define SSL3_AD_CERTIFICATE_UNKNOWN 46 346#define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */ 347 348#define TLS1_HB_REQUEST 1 349#define TLS1_HB_RESPONSE 2 350 351#ifndef OPENSSL_NO_SSL_INTERN 352 353typedef struct ssl3_record_st 354 { 355/*r */ int type; /* type of record */ 356/*rw*/ unsigned int length; /* How many bytes available */ 357/*r */ unsigned int off; /* read/write offset into 'buf' */ 358/*rw*/ unsigned char *data; /* pointer to the record data */ 359/*rw*/ unsigned char *input; /* where the decode bytes are */ 360/*r */ unsigned char *comp; /* only used with decompression - malloc()ed */ 361/*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */ 362/*r */ unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */ 363 } SSL3_RECORD; 364 365typedef struct ssl3_buffer_st 366 { 367 unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes, 368 * see ssl3_setup_buffers() */ 369 size_t len; /* buffer size */ 370 int offset; /* where to 'copy from' */ 371 int left; /* how many bytes left */ 372 } SSL3_BUFFER; 373 374#endif 375 376#define SSL3_CT_RSA_SIGN 1 377#define SSL3_CT_DSS_SIGN 2 378#define SSL3_CT_RSA_FIXED_DH 3 379#define SSL3_CT_DSS_FIXED_DH 4 380#define SSL3_CT_RSA_EPHEMERAL_DH 5 381#define SSL3_CT_DSS_EPHEMERAL_DH 6 382#define SSL3_CT_FORTEZZA_DMS 20 383/* SSL3_CT_NUMBER is used to size arrays and it must be large 384 * enough to contain all of the cert types defined either for 385 * SSLv3 and TLSv1. 386 */ 387#define SSL3_CT_NUMBER 9 388 389 390#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001 391#define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002 392#define SSL3_FLAGS_POP_BUFFER 0x0004 393#define TLS1_FLAGS_TLS_PADDING_BUG 0x0008 394#define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010 395#define TLS1_FLAGS_KEEP_HANDSHAKE 0x0020 396/* 397 * Set when the handshake is ready to process peer's ChangeCipherSpec message. 398 * Cleared after the message has been processed. 399 */ 400#define SSL3_FLAGS_CCS_OK 0x0080 401 402/* SSL3_FLAGS_SGC_RESTART_DONE is set when we 403 * restart a handshake because of MS SGC and so prevents us 404 * from restarting the handshake in a loop. It's reset on a 405 * renegotiation, so effectively limits the client to one restart 406 * per negotiation. This limits the possibility of a DDoS 407 * attack where the client handshakes in a loop using SGC to 408 * restart. Servers which permit renegotiation can still be 409 * effected, but we can't prevent that. 410 */ 411#define SSL3_FLAGS_SGC_RESTART_DONE 0x0040 412 413#ifndef OPENSSL_NO_SSL_INTERN 414 415typedef struct ssl3_state_st 416 { 417 long flags; 418 int delay_buf_pop_ret; 419 420 unsigned char read_sequence[8]; 421 int read_mac_secret_size; 422 unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; 423 unsigned char write_sequence[8]; 424 int write_mac_secret_size; 425 unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; 426 427 unsigned char server_random[SSL3_RANDOM_SIZE]; 428 unsigned char client_random[SSL3_RANDOM_SIZE]; 429 430 /* flags for countermeasure against known-IV weakness */ 431 int need_empty_fragments; 432 int empty_fragment_done; 433 434 /* The value of 'extra' when the buffers were initialized */ 435 int init_extra; 436 437 SSL3_BUFFER rbuf; /* read IO goes into here */ 438 SSL3_BUFFER wbuf; /* write IO goes into here */ 439 440 SSL3_RECORD rrec; /* each decoded record goes in here */ 441 SSL3_RECORD wrec; /* goes out from here */ 442 443 /* storage for Alert/Handshake protocol data received but not 444 * yet processed by ssl3_read_bytes: */ 445 unsigned char alert_fragment[2]; 446 unsigned int alert_fragment_len; 447 unsigned char handshake_fragment[4]; 448 unsigned int handshake_fragment_len; 449 450 /* partial write - check the numbers match */ 451 unsigned int wnum; /* number of bytes sent so far */ 452 int wpend_tot; /* number bytes written */ 453 int wpend_type; 454 int wpend_ret; /* number of bytes submitted */ 455 const unsigned char *wpend_buf; 456 457 /* used during startup, digest all incoming/outgoing packets */ 458 BIO *handshake_buffer; 459 /* When set of handshake digests is determined, buffer is hashed 460 * and freed and MD_CTX-es for all required digests are stored in 461 * this array */ 462 EVP_MD_CTX **handshake_dgst; 463 /* 464 * Set whenever an expected ChangeCipherSpec message is processed. 465 * Unset when the peer's Finished message is received. 466 * Unexpected ChangeCipherSpec messages trigger a fatal alert. 467 */ 468 int change_cipher_spec; 469 470 int warn_alert; 471 int fatal_alert; 472 /* we allow one fatal and one warning alert to be outstanding, 473 * send close alert via the warning alert */ 474 int alert_dispatch; 475 unsigned char send_alert[2]; 476 477 /* This flag is set when we should renegotiate ASAP, basically when 478 * there is no more data in the read or write buffers */ 479 int renegotiate; 480 int total_renegotiations; 481 int num_renegotiations; 482 483 int in_read_app_data; 484 485 /* Opaque PRF input as used for the current handshake. 486 * These fields are used only if TLSEXT_TYPE_opaque_prf_input is defined 487 * (otherwise, they are merely present to improve binary compatibility) */ 488 void *client_opaque_prf_input; 489 size_t client_opaque_prf_input_len; 490 void *server_opaque_prf_input; 491 size_t server_opaque_prf_input_len; 492 493 struct { 494 /* actually only needs to be 16+20 */ 495 unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2]; 496 497 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ 498 unsigned char finish_md[EVP_MAX_MD_SIZE*2]; 499 int finish_md_len; 500 unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2]; 501 int peer_finish_md_len; 502 503 unsigned long message_size; 504 int message_type; 505 506 /* used to hold the new cipher we are going to use */ 507 const SSL_CIPHER *new_cipher; 508#ifndef OPENSSL_NO_DH 509 DH *dh; 510#endif 511 512#ifndef OPENSSL_NO_ECDH 513 EC_KEY *ecdh; /* holds short lived ECDH key */ 514#endif 515 516 /* used when SSL_ST_FLUSH_DATA is entered */ 517 int next_state; 518 519 int reuse_message; 520 521 /* used for certificate requests */ 522 int cert_req; 523 int ctype_num; 524 char ctype[SSL3_CT_NUMBER]; 525 STACK_OF(X509_NAME) *ca_names; 526 527 int use_rsa_tmp; 528 529 int key_block_length; 530 unsigned char *key_block; 531 532 const EVP_CIPHER *new_sym_enc; 533 const EVP_MD *new_hash; 534 int new_mac_pkey_type; 535 int new_mac_secret_size; 536#ifndef OPENSSL_NO_COMP 537 const SSL_COMP *new_compression; 538#else 539 char *new_compression; 540#endif 541 int cert_request; 542 } tmp; 543 544 /* Connection binding to prevent renegotiation attacks */ 545 unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; 546 unsigned char previous_client_finished_len; 547 unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; 548 unsigned char previous_server_finished_len; 549 int send_connection_binding; /* TODOEKR */ 550 551#ifndef OPENSSL_NO_NEXTPROTONEG 552 /* Set if we saw the Next Protocol Negotiation extension from our peer. */ 553 int next_proto_neg_seen; 554#endif 555 556#ifndef OPENSSL_NO_TLSEXT 557#ifndef OPENSSL_NO_EC 558 /* This is set to true if we believe that this is a version of Safari 559 * running on OS X 10.6 or newer. We wish to know this because Safari 560 * on 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. */ 561 char is_probably_safari; 562#endif /* !OPENSSL_NO_EC */ 563#endif /* !OPENSSL_NO_TLSEXT */ 564 } SSL3_STATE; 565 566#endif 567 568/* SSLv3 */ 569/*client */ 570/* extra state */ 571#define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT) 572#ifndef OPENSSL_NO_SCTP 573#define DTLS1_SCTP_ST_CW_WRITE_SOCK (0x310|SSL_ST_CONNECT) 574#define DTLS1_SCTP_ST_CR_READ_SOCK (0x320|SSL_ST_CONNECT) 575#endif 576/* write to server */ 577#define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT) 578#define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT) 579/* read from server */ 580#define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT) 581#define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT) 582#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT) 583#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT) 584#define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT) 585#define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT) 586#define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT) 587#define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT) 588#define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT) 589#define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT) 590#define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT) 591#define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT) 592/* write to server */ 593#define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT) 594#define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT) 595#define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT) 596#define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT) 597#define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT) 598#define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT) 599#define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT) 600#define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT) 601#define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT) 602#define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT) 603#ifndef OPENSSL_NO_NEXTPROTONEG 604#define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT) 605#define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT) 606#endif 607#define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT) 608#define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT) 609/* read from server */ 610#define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT) 611#define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT) 612#define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT) 613#define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT) 614#define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT) 615#define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT) 616#define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT) 617#define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT) 618 619/* server */ 620/* extra state */ 621#define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT) 622#ifndef OPENSSL_NO_SCTP 623#define DTLS1_SCTP_ST_SW_WRITE_SOCK (0x310|SSL_ST_ACCEPT) 624#define DTLS1_SCTP_ST_SR_READ_SOCK (0x320|SSL_ST_ACCEPT) 625#endif 626/* read from client */ 627/* Do not change the number values, they do matter */ 628#define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT) 629#define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT) 630#define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT) 631/* write to client */ 632#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT) 633#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT) 634#define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT) 635#define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT) 636#define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT) 637#define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT) 638#define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT) 639#define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT) 640#define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT) 641#define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT) 642#define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT) 643#define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT) 644#define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT) 645#define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT) 646#define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT) 647/* read from client */ 648#define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT) 649#define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT) 650#define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT) 651#define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT) 652#define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT) 653#define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT) 654#define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT) 655#define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT) 656#ifndef OPENSSL_NO_NEXTPROTONEG 657#define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT) 658#define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT) 659#endif 660#define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT) 661#define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT) 662/* write to client */ 663#define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT) 664#define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT) 665#define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT) 666#define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT) 667#define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT) 668#define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT) 669#define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT) 670#define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT) 671 672#define SSL3_MT_HELLO_REQUEST 0 673#define SSL3_MT_CLIENT_HELLO 1 674#define SSL3_MT_SERVER_HELLO 2 675#define SSL3_MT_NEWSESSION_TICKET 4 676#define SSL3_MT_CERTIFICATE 11 677#define SSL3_MT_SERVER_KEY_EXCHANGE 12 678#define SSL3_MT_CERTIFICATE_REQUEST 13 679#define SSL3_MT_SERVER_DONE 14 680#define SSL3_MT_CERTIFICATE_VERIFY 15 681#define SSL3_MT_CLIENT_KEY_EXCHANGE 16 682#define SSL3_MT_FINISHED 20 683#define SSL3_MT_CERTIFICATE_STATUS 22 684#ifndef OPENSSL_NO_NEXTPROTONEG 685#define SSL3_MT_NEXT_PROTO 67 686#endif 687#define DTLS1_MT_HELLO_VERIFY_REQUEST 3 688 689 690#define SSL3_MT_CCS 1 691 692/* These are used when changing over to a new cipher */ 693#define SSL3_CC_READ 0x01 694#define SSL3_CC_WRITE 0x02 695#define SSL3_CC_CLIENT 0x10 696#define SSL3_CC_SERVER 0x20 697#define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE) 698#define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ) 699#define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ) 700#define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE) 701 702#ifdef __cplusplus 703} 704#endif 705#endif 706 707