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 129 extern "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 */ 308 309 typedef 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; 343 344 typedef 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 383 384 typedef 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 /* Count of the number of consecutive warning alerts received */ 495 unsigned int alert_count; 496 } SSL3_STATE; 497 498 /* SSLv3 */ 499 /* 500 * client 501 */ 502 /* extra state */ 503 # define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT) 504 /* write to server */ 505 # define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT) 506 # define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT) 507 /* read from server */ 508 # define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT) 509 # define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT) 510 # define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT) 511 # define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT) 512 # define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT) 513 # define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT) 514 # define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT) 515 # define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT) 516 # define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT) 517 # define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT) 518 # define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT) 519 # define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT) 520 /* write to server */ 521 # define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT) 522 # define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT) 523 # define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT) 524 # define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT) 525 # define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT) 526 # define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT) 527 # define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT) 528 # define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT) 529 # define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT) 530 # define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT) 531 # define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT) 532 # define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT) 533 /* read from server */ 534 # define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT) 535 # define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT) 536 # define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT) 537 # define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT) 538 # define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT) 539 # define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT) 540 # define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT) 541 # define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT) 542 543 /* server */ 544 /* extra state */ 545 # define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT) 546 /* read from client */ 547 /* Do not change the number values, they do matter */ 548 # define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT) 549 # define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT) 550 # define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT) 551 /* write to client */ 552 # define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT) 553 # define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT) 554 # define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT) 555 # define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT) 556 # define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT) 557 # define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT) 558 # define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT) 559 # define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT) 560 # define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT) 561 # define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT) 562 # define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT) 563 # define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT) 564 # define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT) 565 # define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT) 566 # define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT) 567 /* read from client */ 568 # define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT) 569 # define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT) 570 # define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT) 571 # define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT) 572 # define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT) 573 # define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT) 574 # define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT) 575 # define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT) 576 # define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT) 577 # define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT) 578 /* write to client */ 579 # define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT) 580 # define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT) 581 # define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT) 582 # define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT) 583 # define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT) 584 # define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT) 585 # define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT) 586 # define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT) 587 588 # define SSL3_MT_HELLO_REQUEST 0 589 # define SSL3_MT_CLIENT_HELLO 1 590 # define SSL3_MT_SERVER_HELLO 2 591 # define SSL3_MT_NEWSESSION_TICKET 4 592 # define SSL3_MT_CERTIFICATE 11 593 # define SSL3_MT_SERVER_KEY_EXCHANGE 12 594 # define SSL3_MT_CERTIFICATE_REQUEST 13 595 # define SSL3_MT_SERVER_DONE 14 596 # define SSL3_MT_CERTIFICATE_VERIFY 15 597 # define SSL3_MT_CLIENT_KEY_EXCHANGE 16 598 # define SSL3_MT_FINISHED 20 599 # define SSL3_MT_CERTIFICATE_STATUS 22 600 # define DTLS1_MT_HELLO_VERIFY_REQUEST 3 601 602 # define SSL3_MT_CCS 1 603 604 /* These are used when changing over to a new cipher */ 605 # define SSL3_CC_READ 0x01 606 # define SSL3_CC_WRITE 0x02 607 # define SSL3_CC_CLIENT 0x10 608 # define SSL3_CC_SERVER 0x20 609 # define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE) 610 # define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ) 611 # define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ) 612 # define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE) 613 614 #ifdef __cplusplus 615 } 616 #endif 617 #endif 618