tlsv1_record.h
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00001 /*
00002  * TLSv1 Record Protocol
00003  * Copyright (c) 2006-2007, Jouni Malinen <j@w1.fi>
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License version 2 as
00007  * published by the Free Software Foundation.
00008  *
00009  * Alternatively, this software may be distributed under the terms of BSD
00010  * license.
00011  *
00012  * See README and COPYING for more details.
00013  */
00014 
00015 #ifndef TLSV1_RECORD_H
00016 #define TLSV1_RECORD_H
00017 
00018 #include "crypto/crypto.h"
00019 
00020 #define TLS_MAX_WRITE_MAC_SECRET_LEN 20
00021 #define TLS_MAX_WRITE_KEY_LEN 32
00022 #define TLS_MAX_IV_LEN 16
00023 #define TLS_MAX_KEY_BLOCK_LEN (2 * (TLS_MAX_WRITE_MAC_SECRET_LEN + \
00024                                     TLS_MAX_WRITE_KEY_LEN + TLS_MAX_IV_LEN))
00025 
00026 #define TLS_SEQ_NUM_LEN 8
00027 #define TLS_RECORD_HEADER_LEN 5
00028 
00029 /* ContentType */
00030 enum {
00031         TLS_CONTENT_TYPE_CHANGE_CIPHER_SPEC = 20,
00032         TLS_CONTENT_TYPE_ALERT = 21,
00033         TLS_CONTENT_TYPE_HANDSHAKE = 22,
00034         TLS_CONTENT_TYPE_APPLICATION_DATA = 23
00035 };
00036 
00037 struct tlsv1_record_layer {
00038         u8 write_mac_secret[TLS_MAX_WRITE_MAC_SECRET_LEN];
00039         u8 read_mac_secret[TLS_MAX_WRITE_MAC_SECRET_LEN];
00040         u8 write_key[TLS_MAX_WRITE_KEY_LEN];
00041         u8 read_key[TLS_MAX_WRITE_KEY_LEN];
00042         u8 write_iv[TLS_MAX_IV_LEN];
00043         u8 read_iv[TLS_MAX_IV_LEN];
00044 
00045         size_t hash_size;
00046         size_t key_material_len;
00047         size_t iv_size; /* also block_size */
00048 
00049         enum crypto_hash_alg hash_alg;
00050         enum crypto_cipher_alg cipher_alg;
00051 
00052         u8 write_seq_num[TLS_SEQ_NUM_LEN];
00053         u8 read_seq_num[TLS_SEQ_NUM_LEN];
00054 
00055         u16 cipher_suite;
00056         u16 write_cipher_suite;
00057         u16 read_cipher_suite;
00058 
00059         struct crypto_cipher *write_cbc;
00060         struct crypto_cipher *read_cbc;
00061 };
00062 
00063 
00064 int tlsv1_record_set_cipher_suite(struct tlsv1_record_layer *rl,
00065                                   u16 cipher_suite);
00066 int tlsv1_record_change_write_cipher(struct tlsv1_record_layer *rl);
00067 int tlsv1_record_change_read_cipher(struct tlsv1_record_layer *rl);
00068 int tlsv1_record_send(struct tlsv1_record_layer *rl, u8 content_type, u8 *buf,
00069                       size_t buf_size, size_t payload_len, size_t *out_len);
00070 int tlsv1_record_receive(struct tlsv1_record_layer *rl,
00071                          const u8 *in_data, size_t in_len,
00072                          u8 *out_data, size_t *out_len, u8 *alert);
00073 
00074 #endif /* TLSV1_RECORD_H */


wpa_supplicant_node
Author(s): Package maintained by Blaise Gassend
autogenerated on Thu Apr 24 2014 15:33:21