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234 lines
7.4 KiB
C
234 lines
7.4 KiB
C
/*
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* wpa_supplicant/hostapd: TLSv1 common definitions
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* Copyright (c) 2006, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef TLSV1_COMMON
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#define TLSV1_COMMON
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#define TLS_VERSION 0x0301 /* TLSv1 */
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#define TLS_RANDOM_LEN 32
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#define TLS_PRE_MASTER_SECRET_LEN 48
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#define TLS_MASTER_SECRET_LEN 48
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#define TLS_SESSION_ID_MAX_LEN 32
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#define TLS_VERIFY_DATA_LEN 12
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#define TLS_MAX_WRITE_MAC_SECRET_LEN 20
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#define TLS_MAX_WRITE_KEY_LEN 32
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#define TLS_MAX_IV_LEN 16
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#define TLS_MAX_KEY_BLOCK_LEN (2 * (TLS_MAX_WRITE_MAC_SECRET_LEN + \
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TLS_MAX_WRITE_KEY_LEN + TLS_MAX_IV_LEN))
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#define TLS_SEQ_NUM_LEN 8
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#define TLS_RECORD_HEADER_LEN 5
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/* ContentType */
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enum {
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TLS_CONTENT_TYPE_CHANGE_CIPHER_SPEC = 20,
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TLS_CONTENT_TYPE_ALERT = 21,
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TLS_CONTENT_TYPE_HANDSHAKE = 22,
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TLS_CONTENT_TYPE_APPLICATION_DATA = 23
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};
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/* HandshakeType */
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enum {
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TLS_HANDSHAKE_TYPE_HELLO_REQUEST = 0,
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TLS_HANDSHAKE_TYPE_CLIENT_HELLO = 1,
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TLS_HANDSHAKE_TYPE_SERVER_HELLO = 2,
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TLS_HANDSHAKE_TYPE_CERTIFICATE = 11,
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TLS_HANDSHAKE_TYPE_SERVER_KEY_EXCHANGE = 12,
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TLS_HANDSHAKE_TYPE_CERTIFICATE_REQUEST = 13,
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TLS_HANDSHAKE_TYPE_SERVER_HELLO_DONE = 14,
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TLS_HANDSHAKE_TYPE_CERTIFICATE_VERIFY = 15,
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TLS_HANDSHAKE_TYPE_CLIENT_KEY_EXCHANGE = 16,
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TLS_HANDSHAKE_TYPE_FINISHED = 20
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};
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/* CipherSuite */
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#define TLS_NULL_WITH_NULL_NULL 0x0000 /* RFC 2246 */
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#define TLS_RSA_WITH_NULL_MD5 0x0001 /* RFC 2246 */
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#define TLS_RSA_WITH_NULL_SHA 0x0002 /* RFC 2246 */
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#define TLS_RSA_EXPORT_WITH_RC4_40_MD5 0x0003 /* RFC 2246 */
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#define TLS_RSA_WITH_RC4_128_MD5 0x0004 /* RFC 2246 */
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#define TLS_RSA_WITH_RC4_128_SHA 0x0005 /* RFC 2246 */
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#define TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 0x0006 /* RFC 2246 */
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#define TLS_RSA_WITH_IDEA_CBC_SHA 0x0007 /* RFC 2246 */
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#define TLS_RSA_EXPORT_WITH_DES40_CBC_SHA 0x0008 /* RFC 2246 */
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#define TLS_RSA_WITH_DES_CBC_SHA 0x0009 /* RFC 2246 */
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#define TLS_RSA_WITH_3DES_EDE_CBC_SHA 0x000A /* RFC 2246 */
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#define TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA 0x000B /* RFC 2246 */
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#define TLS_DH_DSS_WITH_DES_CBC_SHA 0x000C /* RFC 2246 */
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#define TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA 0x000D /* RFC 2246 */
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#define TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA 0x000E /* RFC 2246 */
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#define TLS_DH_RSA_WITH_DES_CBC_SHA 0x000F /* RFC 2246 */
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#define TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA 0x0010 /* RFC 2246 */
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#define TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA 0x0011 /* RFC 2246 */
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#define TLS_DHE_DSS_WITH_DES_CBC_SHA 0x0012 /* RFC 2246 */
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#define TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA 0x0013 /* RFC 2246 */
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#define TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA 0x0014 /* RFC 2246 */
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#define TLS_DHE_RSA_WITH_DES_CBC_SHA 0x0015 /* RFC 2246 */
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#define TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA 0x0016 /* RFC 2246 */
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#define TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 0x0017 /* RFC 2246 */
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#define TLS_DH_anon_WITH_RC4_128_MD5 0x0018 /* RFC 2246 */
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#define TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA 0x0019 /* RFC 2246 */
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#define TLS_DH_anon_WITH_DES_CBC_SHA 0x001A /* RFC 2246 */
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#define TLS_DH_anon_WITH_3DES_EDE_CBC_SHA 0x001B /* RFC 2246 */
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#define TLS_RSA_WITH_AES_128_CBC_SHA 0x002F /* RFC 3268 */
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#define TLS_DH_DSS_WITH_AES_128_CBC_SHA 0x0030 /* RFC 3268 */
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#define TLS_DH_RSA_WITH_AES_128_CBC_SHA 0x0031 /* RFC 3268 */
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#define TLS_DHE_DSS_WITH_AES_128_CBC_SHA 0x0032 /* RFC 3268 */
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#define TLS_DHE_RSA_WITH_AES_128_CBC_SHA 0x0033 /* RFC 3268 */
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#define TLS_DH_anon_WITH_AES_128_CBC_SHA 0x0034 /* RFC 3268 */
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#define TLS_RSA_WITH_AES_256_CBC_SHA 0x0035 /* RFC 3268 */
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#define TLS_DH_DSS_WITH_AES_256_CBC_SHA 0x0036 /* RFC 3268 */
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#define TLS_DH_RSA_WITH_AES_256_CBC_SHA 0x0037 /* RFC 3268 */
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#define TLS_DHE_DSS_WITH_AES_256_CBC_SHA 0x0038 /* RFC 3268 */
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#define TLS_DHE_RSA_WITH_AES_256_CBC_SHA 0x0039 /* RFC 3268 */
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#define TLS_DH_anon_WITH_AES_256_CBC_SHA 0x003A /* RFC 3268 */
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/* CompressionMethod */
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#define TLS_COMPRESSION_NULL 0
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/* AlertLevel */
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#define TLS_ALERT_LEVEL_WARNING 1
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#define TLS_ALERT_LEVEL_FATAL 2
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/* AlertDescription */
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#define TLS_ALERT_CLOSE_NOTIFY 0
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#define TLS_ALERT_UNEXPECTED_MESSAGE 10
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#define TLS_ALERT_BAD_RECORD_MAC 20
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#define TLS_ALERT_DECRYPTION_FAILED 21
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#define TLS_ALERT_RECORD_OVERFLOW 22
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#define TLS_ALERT_DECOMPRESSION_FAILURE 30
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#define TLS_ALERT_HANDSHAKE_FAILURE 40
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#define TLS_ALERT_BAD_CERTIFICATE 42
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#define TLS_ALERT_UNSUPPORTED_CERTIFICATE 43
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#define TLS_ALERT_CERTIFICATE_REVOKED 44
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#define TLS_ALERT_CERTIFICATE_EXPIRED 45
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#define TLS_ALERT_CERTIFICATE_UNKNOWN 46
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#define TLS_ALERT_ILLEGAL_PARAMETER 47
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#define TLS_ALERT_UNKNOWN_CA 48
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#define TLS_ALERT_ACCESS_DENIED 49
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#define TLS_ALERT_DECODE_ERROR 50
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#define TLS_ALERT_DECRYPT_ERROR 51
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#define TLS_ALERT_EXPORT_RESTRICTION 60
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#define TLS_ALERT_PROTOCOL_VERSION 70
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#define TLS_ALERT_INSUFFICIENT_SECURITY 71
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#define TLS_ALERT_INTERNAL_ERROR 80
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#define TLS_ALERT_USER_CANCELED 90
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#define TLS_ALERT_NO_RENEGOTIATION 100
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/* ChangeCipherSpec */
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enum {
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TLS_CHANGE_CIPHER_SPEC = 1
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};
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/* TLS Extensions */
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#define TLS_EXT_PAC_OPAQUE 35
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typedef enum {
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TLS_KEY_X_NULL,
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TLS_KEY_X_RSA,
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TLS_KEY_X_RSA_EXPORT,
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TLS_KEY_X_DH_DSS_EXPORT,
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TLS_KEY_X_DH_DSS,
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TLS_KEY_X_DH_RSA_EXPORT,
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TLS_KEY_X_DH_RSA,
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TLS_KEY_X_DHE_DSS_EXPORT,
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TLS_KEY_X_DHE_DSS,
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TLS_KEY_X_DHE_RSA_EXPORT,
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TLS_KEY_X_DHE_RSA,
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TLS_KEY_X_DH_anon_EXPORT,
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TLS_KEY_X_DH_anon
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} tls_key_exchange;
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typedef enum {
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TLS_CIPHER_NULL,
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TLS_CIPHER_RC4_40,
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TLS_CIPHER_RC4_128,
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TLS_CIPHER_RC2_CBC_40,
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TLS_CIPHER_IDEA_CBC,
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TLS_CIPHER_DES40_CBC,
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TLS_CIPHER_DES_CBC,
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TLS_CIPHER_3DES_EDE_CBC,
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TLS_CIPHER_AES_128_CBC,
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TLS_CIPHER_AES_256_CBC
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} tls_cipher;
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typedef enum {
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TLS_HASH_NULL,
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TLS_HASH_MD5,
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TLS_HASH_SHA
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} tls_hash;
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struct tls_cipher_suite {
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u16 suite;
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tls_key_exchange key_exchange;
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tls_cipher cipher;
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tls_hash hash;
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};
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typedef enum {
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TLS_CIPHER_STREAM,
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TLS_CIPHER_BLOCK
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} tls_cipher_type;
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struct tls_cipher_data {
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tls_cipher cipher;
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tls_cipher_type type;
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size_t key_material;
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size_t expanded_key_material;
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size_t block_size; /* also iv_size */
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enum crypto_cipher_alg alg;
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};
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struct tlsv1_record_layer {
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u8 write_mac_secret[TLS_MAX_WRITE_MAC_SECRET_LEN];
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u8 read_mac_secret[TLS_MAX_WRITE_MAC_SECRET_LEN];
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u8 write_key[TLS_MAX_WRITE_KEY_LEN];
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u8 read_key[TLS_MAX_WRITE_KEY_LEN];
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u8 write_iv[TLS_MAX_IV_LEN];
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u8 read_iv[TLS_MAX_IV_LEN];
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size_t hash_size;
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size_t key_material_len;
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size_t iv_size; /* also block_size */
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enum crypto_hash_alg hash_alg;
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enum crypto_cipher_alg cipher_alg;
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u8 write_seq_num[TLS_SEQ_NUM_LEN];
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u8 read_seq_num[TLS_SEQ_NUM_LEN];
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u16 cipher_suite;
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u16 write_cipher_suite;
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u16 read_cipher_suite;
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struct crypto_cipher *write_cbc;
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struct crypto_cipher *read_cbc;
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};
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const struct tls_cipher_suite * tls_get_cipher_suite(u16 suite);
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int tls_parse_cert(const u8 *buf, size_t len, struct crypto_public_key **pk);
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int tlsv1_record_set_cipher_suite(struct tlsv1_record_layer *rl,
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u16 cipher_suite);
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int tlsv1_record_change_write_cipher(struct tlsv1_record_layer *rl);
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int tlsv1_record_change_read_cipher(struct tlsv1_record_layer *rl);
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int tlsv1_record_send(struct tlsv1_record_layer *rl, u8 content_type, u8 *buf,
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size_t buf_size, size_t payload_len, size_t *out_len);
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int tlsv1_record_receive(struct tlsv1_record_layer *rl,
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const u8 *in_data, size_t in_len,
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u8 *out_data, size_t *out_len, u8 *alert);
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#endif /* TLSV1_COMMON_H */
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