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457 lines
17 KiB
C
457 lines
17 KiB
C
/* ssl/ssl3.h */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#ifndef HEADER_SSL3_H
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#define HEADER_SSL3_H
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#include <openssl/buffer.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define SSL3_CK_RSA_NULL_MD5 0x03000001
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#define SSL3_CK_RSA_NULL_SHA 0x03000002
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#define SSL3_CK_RSA_RC4_40_MD5 0x03000003
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#define SSL3_CK_RSA_RC4_128_MD5 0x03000004
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#define SSL3_CK_RSA_RC4_128_SHA 0x03000005
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#define SSL3_CK_RSA_RC2_40_MD5 0x03000006
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#define SSL3_CK_RSA_IDEA_128_SHA 0x03000007
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#define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008
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#define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009
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#define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A
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#define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B
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#define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C
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#define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D
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#define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E
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#define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F
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#define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010
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#define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011
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#define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012
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#define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013
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#define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014
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#define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015
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#define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016
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#define SSL3_CK_ADH_RC4_40_MD5 0x03000017
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#define SSL3_CK_ADH_RC4_128_MD5 0x03000018
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#define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019
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#define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
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#define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
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#define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C
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#define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D
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#define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
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#define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
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#define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
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#define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5"
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#define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5"
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#define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA"
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#define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5"
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#define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA"
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#define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA"
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#define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA"
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#define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA"
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#define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA"
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#define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA"
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#define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA"
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#define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA"
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#define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA"
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#define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA"
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#define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA"
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#define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA"
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#define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
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#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA"
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#define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA"
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#define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"
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#define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5"
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#define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5"
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#define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA"
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#define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
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#define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
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#define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA"
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#define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA"
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#define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA"
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#define SSL3_SSL_SESSION_ID_LENGTH 32
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#define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
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#define SSL3_MASTER_SECRET_SIZE 48
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#define SSL3_RANDOM_SIZE 32
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#define SSL3_SESSION_ID_SIZE 32
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#define SSL3_RT_HEADER_LENGTH 5
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/* Due to MS stuffing up, this can change.... */
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#if defined(WIN16) || (defined(MSDOS) && !defined(WIN32))
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#define SSL3_RT_MAX_EXTRA (14000)
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#else
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#define SSL3_RT_MAX_EXTRA (16384)
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#endif
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#define SSL3_RT_MAX_PLAIN_LENGTH 16384
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#define SSL3_RT_MAX_COMPRESSED_LENGTH (1024+SSL3_RT_MAX_PLAIN_LENGTH)
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#define SSL3_RT_MAX_ENCRYPTED_LENGTH (1024+SSL3_RT_MAX_COMPRESSED_LENGTH)
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#define SSL3_RT_MAX_PACKET_SIZE (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
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#define SSL3_RT_MAX_DATA_SIZE (1024*1024)
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/* the states that a SSL3_RECORD can be in
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* For SSL_read it goes
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* rbuf->ENCODED -> read
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* ENCODED -> we need to decode everything - call decode_record
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*/
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#define SSL3_RS_BLANK 1
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#define SSL3_RS_DATA
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#define SSL3_RS_ENCODED 2
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#define SSL3_RS_READ_MORE 3
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#define SSL3_RS_WRITE_MORE
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#define SSL3_RS_PLAIN 3
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#define SSL3_RS_PART_READ 4
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#define SSL3_RS_PART_WRITE 5
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#define SSL3_MD_CLIENT_FINISHED_CONST {0x43,0x4C,0x4E,0x54}
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#define SSL3_MD_SERVER_FINISHED_CONST {0x53,0x52,0x56,0x52}
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#define SSL3_VERSION 0x0300
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#define SSL3_VERSION_MAJOR 0x03
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#define SSL3_VERSION_MINOR 0x00
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#define SSL3_RT_CHANGE_CIPHER_SPEC 20
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#define SSL3_RT_ALERT 21
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#define SSL3_RT_HANDSHAKE 22
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#define SSL3_RT_APPLICATION_DATA 23
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#define SSL3_AL_WARNING 1
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#define SSL3_AL_FATAL 2
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#define SSL3_AD_CLOSE_NOTIFY 0
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#define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */
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#define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */
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#define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */
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#define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */
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#define SSL3_AD_NO_CERTIFICATE 41
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#define SSL3_AD_BAD_CERTIFICATE 42
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#define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
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#define SSL3_AD_CERTIFICATE_REVOKED 44
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#define SSL3_AD_CERTIFICATE_EXPIRED 45
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#define SSL3_AD_CERTIFICATE_UNKNOWN 46
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#define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */
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typedef struct ssl3_record_st
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{
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/*r */ int type; /* type of record */
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/* */ /*int state;*/ /* any data in it? */
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/*rw*/ unsigned int length; /* How many bytes available */
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/*r */ unsigned int off; /* read/write offset into 'buf' */
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/*rw*/ unsigned char *data; /* pointer to the record data */
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/*rw*/ unsigned char *input; /* where the decode bytes are */
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/*r */ unsigned char *comp; /* only used with decompression - malloc()ed */
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} SSL3_RECORD;
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typedef struct ssl3_buffer_st
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{
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/*r */ int total; /* used in non-blocking writes */
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/*r */ int wanted; /* how many more bytes we need */
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/*rw*/ int left; /* how many bytes left */
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/*rw*/ int offset; /* where to 'copy from' */
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/*rw*/ unsigned char *buf; /* SSL3_RT_MAX_PACKET_SIZE bytes */
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} SSL3_BUFFER;
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#define SSL3_CT_RSA_SIGN 1
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#define SSL3_CT_DSS_SIGN 2
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#define SSL3_CT_RSA_FIXED_DH 3
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#define SSL3_CT_DSS_FIXED_DH 4
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#define SSL3_CT_RSA_EPHEMERAL_DH 5
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#define SSL3_CT_DSS_EPHEMERAL_DH 6
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#define SSL3_CT_FORTEZZA_DMS 20
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#define SSL3_CT_NUMBER 7
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#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
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#define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
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#define SSL3_FLAGS_POP_BUFFER 0x0004
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#define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
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#if 0
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#define AD_CLOSE_NOTIFY 0
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#define AD_UNEXPECTED_MESSAGE 1
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#define AD_BAD_RECORD_MAC 2
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#define AD_DECRYPTION_FAILED 3
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#define AD_RECORD_OVERFLOW 4
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#define AD_DECOMPRESSION_FAILURE 5 /* fatal */
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#define AD_HANDSHAKE_FAILURE 6 /* fatal */
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#define AD_NO_CERTIFICATE 7 /* Not under TLS */
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#define AD_BAD_CERTIFICATE 8
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#define AD_UNSUPPORTED_CERTIFICATE 9
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#define AD_CERTIFICATE_REVOKED 10
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#define AD_CERTIFICATE_EXPIRED 11
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#define AD_CERTIFICATE_UNKNOWN 12
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#define AD_ILLEGAL_PARAMETER 13 /* fatal */
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#define AD_UNKNOWN_CA 14 /* fatal */
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#define AD_ACCESS_DENIED 15 /* fatal */
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#define AD_DECODE_ERROR 16 /* fatal */
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#define AD_DECRYPT_ERROR 17
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#define AD_EXPORT_RESTRICION 18 /* fatal */
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#define AD_PROTOCOL_VERSION 19 /* fatal */
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#define AD_INSUFFICIENT_SECURITY 20 /* fatal */
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#define AD_INTERNAL_ERROR 21 /* fatal */
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#define AD_USER_CANCLED 22
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#define AD_NO_RENEGOTIATION 23
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#endif
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typedef struct ssl3_ctx_st
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{
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long flags;
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int delay_buf_pop_ret;
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unsigned char read_sequence[8];
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unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
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unsigned char write_sequence[8];
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unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
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unsigned char server_random[SSL3_RANDOM_SIZE];
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unsigned char client_random[SSL3_RANDOM_SIZE];
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SSL3_BUFFER rbuf; /* read IO goes into here */
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SSL3_BUFFER wbuf; /* write IO goes into here */
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SSL3_RECORD rrec; /* each decoded record goes in here */
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SSL3_RECORD wrec; /* goes out from here */
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/* Used by ssl3_read_n to point
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* to input data packet */
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/* partial write - check the numbers match */
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unsigned int wnum; /* number of bytes sent so far */
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int wpend_tot; /* number bytes written */
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int wpend_type;
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int wpend_ret; /* number of bytes submitted */
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const unsigned char *wpend_buf;
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/* used during startup, digest all incoming/outgoing packets */
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EVP_MD_CTX finish_dgst1;
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EVP_MD_CTX finish_dgst2;
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/* this is set whenerver we see a change_cipher_spec message
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* come in when we are not looking for one */
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int change_cipher_spec;
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int warn_alert;
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int fatal_alert;
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/* we alow one fatal and one warning alert to be outstanding,
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* send close alert via the warning alert */
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int alert_dispatch;
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unsigned char send_alert[2];
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/* This flag is set when we should renegotiate ASAP, basically when
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* there is no more data in the read or write buffers */
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int renegotiate;
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int total_renegotiations;
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int num_renegotiations;
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int in_read_app_data;
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struct {
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/* Actually only needs to be 16+20 for SSLv3 and 12 for TLS */
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unsigned char finish_md[EVP_MAX_MD_SIZE*2];
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unsigned long message_size;
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int message_type;
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/* used to hold the new cipher we are going to use */
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SSL_CIPHER *new_cipher;
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DH *dh;
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/* used when SSL_ST_FLUSH_DATA is entered */
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int next_state;
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int reuse_message;
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/* used for certificate requests */
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int cert_req;
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int ctype_num;
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char ctype[SSL3_CT_NUMBER];
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STACK_OF(X509_NAME) *ca_names;
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int use_rsa_tmp;
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int key_block_length;
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unsigned char *key_block;
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const EVP_CIPHER *new_sym_enc;
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const EVP_MD *new_hash;
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#ifdef HEADER_COMP_H
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const SSL_COMP *new_compression;
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#else
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char *new_compression;
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#endif
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int cert_request;
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} tmp;
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} SSL3_CTX;
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/* SSLv3 */
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/*client */
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/* extra state */
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#define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
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/* write to server */
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#define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT)
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#define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT)
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/* read from server */
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#define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT)
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#define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT)
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#define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT)
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#define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT)
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#define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT)
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#define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT)
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#define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT)
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#define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT)
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#define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT)
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#define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT)
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/* write to server */
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#define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT)
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#define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT)
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#define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT)
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#define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT)
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#define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT)
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#define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT)
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#define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT)
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#define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
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#define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
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#define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
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#define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
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#define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
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/* read from server */
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#define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT)
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#define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT)
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#define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT)
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#define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT)
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/* server */
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/* extra state */
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#define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT)
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/* read from client */
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/* Do not change the number values, they do matter */
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#define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT)
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/* write to client */
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#define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT)
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/* read from client */
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#define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
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#define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
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/* write to client */
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#define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT)
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#define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT)
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#define SSL3_MT_CLIENT_REQUEST 0
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#define SSL3_MT_CLIENT_HELLO 1
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#define SSL3_MT_SERVER_HELLO 2
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#define SSL3_MT_CERTIFICATE 11
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#define SSL3_MT_SERVER_KEY_EXCHANGE 12
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#define SSL3_MT_CERTIFICATE_REQUEST 13
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#define SSL3_MT_SERVER_DONE 14
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#define SSL3_MT_CERTIFICATE_VERIFY 15
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#define SSL3_MT_CLIENT_KEY_EXCHANGE 16
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#define SSL3_MT_FINISHED 20
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#define SSL3_MT_CCS 1
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/* These are used when changing over to a new cipher */
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#define SSL3_CC_READ 0x01
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#define SSL3_CC_WRITE 0x02
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#define SSL3_CC_CLIENT 0x10
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#define SSL3_CC_SERVER 0x20
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#define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
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#define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ)
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#define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ)
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#define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
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#ifdef __cplusplus
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}
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#endif
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#endif
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