Disconnect hostapd from building in base
[dragonfly.git] / contrib / hostapd / src / tls / tlsv1_record.h
1 /*
2  * TLSv1 Record Protocol
3  * Copyright (c) 2006-2011, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8
9 #ifndef TLSV1_RECORD_H
10 #define TLSV1_RECORD_H
11
12 #include "crypto/crypto.h"
13
14 #define TLS_MAX_WRITE_MAC_SECRET_LEN 32
15 #define TLS_MAX_WRITE_KEY_LEN 32
16 #define TLS_MAX_IV_LEN 16
17 #define TLS_MAX_KEY_BLOCK_LEN (2 * (TLS_MAX_WRITE_MAC_SECRET_LEN + \
18                                     TLS_MAX_WRITE_KEY_LEN + TLS_MAX_IV_LEN))
19
20 #define TLS_SEQ_NUM_LEN 8
21 #define TLS_RECORD_HEADER_LEN 5
22
23 /* ContentType */
24 enum {
25         TLS_CONTENT_TYPE_CHANGE_CIPHER_SPEC = 20,
26         TLS_CONTENT_TYPE_ALERT = 21,
27         TLS_CONTENT_TYPE_HANDSHAKE = 22,
28         TLS_CONTENT_TYPE_APPLICATION_DATA = 23
29 };
30
31 struct tlsv1_record_layer {
32         u16 tls_version;
33
34         u8 write_mac_secret[TLS_MAX_WRITE_MAC_SECRET_LEN];
35         u8 read_mac_secret[TLS_MAX_WRITE_MAC_SECRET_LEN];
36         u8 write_key[TLS_MAX_WRITE_KEY_LEN];
37         u8 read_key[TLS_MAX_WRITE_KEY_LEN];
38         u8 write_iv[TLS_MAX_IV_LEN];
39         u8 read_iv[TLS_MAX_IV_LEN];
40
41         size_t hash_size;
42         size_t key_material_len;
43         size_t iv_size; /* also block_size */
44
45         enum crypto_hash_alg hash_alg;
46         enum crypto_cipher_alg cipher_alg;
47
48         u8 write_seq_num[TLS_SEQ_NUM_LEN];
49         u8 read_seq_num[TLS_SEQ_NUM_LEN];
50
51         u16 cipher_suite;
52         u16 write_cipher_suite;
53         u16 read_cipher_suite;
54
55         struct crypto_cipher *write_cbc;
56         struct crypto_cipher *read_cbc;
57 };
58
59
60 int tlsv1_record_set_cipher_suite(struct tlsv1_record_layer *rl,
61                                   u16 cipher_suite);
62 int tlsv1_record_change_write_cipher(struct tlsv1_record_layer *rl);
63 int tlsv1_record_change_read_cipher(struct tlsv1_record_layer *rl);
64 int tlsv1_record_send(struct tlsv1_record_layer *rl, u8 content_type, u8 *buf,
65                       size_t buf_size, const u8 *payload, size_t payload_len,
66                       size_t *out_len);
67 int tlsv1_record_receive(struct tlsv1_record_layer *rl,
68                          const u8 *in_data, size_t in_len,
69                          u8 *out_data, size_t *out_len, u8 *alert);
70
71 #endif /* TLSV1_RECORD_H */