hostapd: Update vendor branch to 0.6.10
[dragonfly.git] / contrib / hostapd / src / eap_peer / eap_tls_common.h
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JL
1/*
2 * EAP peer: EAP-TLS/PEAP/TTLS/FAST common functions
3 * Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#ifndef EAP_TLS_COMMON_H
16#define EAP_TLS_COMMON_H
17
18/**
19 * struct eap_ssl_data - TLS data for EAP methods
20 */
21struct eap_ssl_data {
22 /**
23 * conn - TLS connection context data from tls_connection_init()
24 */
25 struct tls_connection *conn;
26
27 /**
28 * tls_out - TLS message to be sent out in fragments
29 */
30 u8 *tls_out;
31
32 /**
33 * tls_out_len - Total length of the outgoing TLS message
34 */
35 size_t tls_out_len;
36
37 /**
38 * tls_out_pos - The current position in the outgoing TLS message
39 */
40 size_t tls_out_pos;
41
42 /**
43 * tls_out_limit - Maximum fragment size for outgoing TLS messages
44 */
45 size_t tls_out_limit;
46
47 /**
48 * tls_in - Received TLS message buffer for re-assembly
49 */
50 u8 *tls_in;
51
52 /**
53 * tls_in_len - Number of bytes of the received TLS message in tls_in
54 */
55 size_t tls_in_len;
56
57 /**
58 * tls_in_left - Number of remaining bytes in the incoming TLS message
59 */
60 size_t tls_in_left;
61
62 /**
63 * tls_in_total - Total number of bytes in the incoming TLS message
64 */
65 size_t tls_in_total;
66
67 /**
68 * phase2 - Whether this TLS connection is used in EAP phase 2 (tunnel)
69 */
70 int phase2;
71
72 /**
73 * include_tls_length - Whether the TLS length field is included even
74 * if the TLS data is not fragmented
75 */
76 int include_tls_length;
77
78 /**
79 * tls_ia - Whether TLS/IA is enabled for this TLS connection
80 */
81 int tls_ia;
82
83 /**
84 * eap - Pointer to EAP state machine allocated with eap_peer_sm_init()
85 */
86 struct eap_sm *eap;
87};
88
89
90/* EAP TLS Flags */
91#define EAP_TLS_FLAGS_LENGTH_INCLUDED 0x80
92#define EAP_TLS_FLAGS_MORE_FRAGMENTS 0x40
93#define EAP_TLS_FLAGS_START 0x20
94#define EAP_PEAP_VERSION_MASK 0x07
95
96 /* could be up to 128 bytes, but only the first 64 bytes are used */
97#define EAP_TLS_KEY_LEN 64
98
99
100int eap_peer_tls_ssl_init(struct eap_sm *sm, struct eap_ssl_data *data,
101 struct eap_peer_config *config);
102void eap_peer_tls_ssl_deinit(struct eap_sm *sm, struct eap_ssl_data *data);
103u8 * eap_peer_tls_derive_key(struct eap_sm *sm, struct eap_ssl_data *data,
104 const char *label, size_t len);
105const u8 * eap_peer_tls_data_reassemble(
106 struct eap_ssl_data *data, const u8 *in_data, size_t in_len,
107 size_t *out_len, int *need_more_input);
108int eap_peer_tls_process_helper(struct eap_sm *sm, struct eap_ssl_data *data,
109 EapType eap_type, int peap_version,
110 u8 id, const u8 *in_data, size_t in_len,
111 struct wpabuf **out_data);
112struct wpabuf * eap_peer_tls_build_ack(u8 id, EapType eap_type,
113 int peap_version);
114int eap_peer_tls_reauth_init(struct eap_sm *sm, struct eap_ssl_data *data);
115int eap_peer_tls_status(struct eap_sm *sm, struct eap_ssl_data *data,
116 char *buf, size_t buflen, int verbose);
117const u8 * eap_peer_tls_process_init(struct eap_sm *sm,
118 struct eap_ssl_data *data,
119 EapType eap_type,
120 struct eap_method_ret *ret,
121 const struct wpabuf *reqData,
122 size_t *len, u8 *flags);
123void eap_peer_tls_reset_input(struct eap_ssl_data *data);
124void eap_peer_tls_reset_output(struct eap_ssl_data *data);
125int eap_peer_tls_decrypt(struct eap_sm *sm, struct eap_ssl_data *data,
126 const struct wpabuf *in_data,
127 struct wpabuf **in_decrypted);
128int eap_peer_tls_encrypt(struct eap_sm *sm, struct eap_ssl_data *data,
129 EapType eap_type, int peap_version, u8 id,
130 const struct wpabuf *in_data,
131 struct wpabuf **out_data);
132int eap_peer_select_phase2_methods(struct eap_peer_config *config,
133 const char *prefix,
134 struct eap_method_type **types,
135 size_t *num_types);
136int eap_peer_tls_phase2_nak(struct eap_method_type *types, size_t num_types,
137 struct eap_hdr *hdr, struct wpabuf **resp);
138
139#endif /* EAP_TLS_COMMON_H */