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115 lines
4.9 KiB
C
115 lines
4.9 KiB
C
/*-
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* Copyright (C) 2001-2003 by NBMK Encryption Technologies.
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* All rights reserved.
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*
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* NBMK Encryption Technologies provides no support of any kind for
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* this software. Questions or concerns about it may be addressed to
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* the members of the relevant open-source community at
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* <tech-crypto@netbsd.org>.
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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 are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*****************************************************************************
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* @(#) n8_ssltls.h 1.2@(#)
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*****************************************************************************/
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/*****************************************************************************/
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/** @file n8_ssltls.h
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* @brief Header for SSL/TLS functionality.
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*
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* Protoypes and structures for SSL/TLS functions.
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*
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*****************************************************************************/
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/*****************************************************************************
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* Revision history:
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* 05/20/03 brr Moved public constants to n8_pub_packet.h.
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* 10/12/01 dkm Moved public portion to n8_pub_packet.h.
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* 06/17/01 bac Added N8_TLS_VERSION.
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* 06/14/01 bac Changes per code review: comment changes, create defines
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* for N8_SSLTLS_MAX_DATA_SIZE_[ENCRYPT,DECRYPT] and
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* N8_DES_BLOCK_MULTIPLE
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* 06/05/01 bac Changes to not rely on N8_SSLTLSPacket_t being packed (Bug
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* #31). This includes changing the definition of
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* N8_SSLTLSPacket_t, adding SSLTLS_*_OFFSET defines, and adding
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* macros for SSLTLS_EXTRACT_* and SSLTLS_SET_*.
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* 05/30/01 bac Changed structure comments. Changed type of the verify_p in
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* DecryptVerify.
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* 05/22/01 bac Changed data definition in N8_SSLTLSPacket_t. Changed
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* interfaces to SSLTLSDecrypt and SSLTLSAuthenticate to take and
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* return packets instead buffers. Added prototypes for
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* N8_GetHashLength and N8_ComputeEncryptedLength.
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* 05/18/01 bac Converted to N8_xMALLOC and N8_xFREE
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* 05/18/01 bac Fixed N8_SSLTLSEncryptAuthenticate prototype to match new
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* API.
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* 05/02/01 bac Original version.
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****************************************************************************/
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#ifndef N8_SSLTLS_H
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#define N8_SSLTLS_H
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#include "n8_pub_packet.h"
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#include "n8_packet.h"
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#define N8_DES_BLOCK_MULTIPLE 8
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#define N8_DES_MD5_MIN_LENGTH 24
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#define N8_DES_SHA1_MIN_LENGTH 24
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#define N8_ARC4_MD5_MIN_LENGTH 16
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#define N8_ARC4_SHA1_MIN_LENGTH 20
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#define SSLTLS_TYPE_OFFSET 0
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#define SSLTLS_VERSION_OFFSET 1
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#define SSLTLS_LENGTH_OFFSET 3
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#define SSLTLS_DATA_OFFSET 5
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#define SSLTLS_HEADER_LEN 5
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#define SSLTLS_EXTRACT_TYPE(PACKET_P) (const uint8_t) (PACKET_P[SSLTLS_TYPE_OFFSET])
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#define SSLTLS_EXTRACT_VERSION(PACKET_P) ntohs(*((const uint16_t *) &PACKET_P[SSLTLS_VERSION_OFFSET]))
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#define SSLTLS_EXTRACT_LENGTH(PACKET_P) ntohs(*((const uint16_t *) &PACKET_P[SSLTLS_LENGTH_OFFSET]))
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#define SSLTLS_SET_TYPE(PACKET_P, VALUE) PACKET_P[SSLTLS_TYPE_OFFSET] = (VALUE)
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#define SSLTLS_SET_VERSION(PACKET_P, VALUE) *((uint16_t *) &PACKET_P[SSLTLS_VERSION_OFFSET]) = htons((VALUE))
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#define SSLTLS_SET_LENGTH(PACKET_P, VALUE) *((uint16_t *) &PACKET_P[SSLTLS_LENGTH_OFFSET]) = htons((VALUE))
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/*
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* SSL/TLS content types as defined by the protocol. Do not change the values.
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*/
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typedef enum
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{
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N8_CHANGE_CIPHER_SPEC = 20,
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N8_ALERT = 21,
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N8_HANDSHAKE = 22,
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N8_APPLICATION_DATA = 23
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} N8_SSLTLS_ContentType_t;
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/* prototypes */
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short int N8_GetHashLength(N8_HashAlgorithm_t hash);
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short int N8_ComputeEncryptedLength(int size, int hashLen, N8_Cipher_t cipher);
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#endif /* N8_SSLTLS_H */
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