2 * EAP peer: EAP-TLS/PEAP/TTLS/FAST common functions
3 * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi>
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.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
15 #ifndef EAP_TLS_COMMON_H
16 #define EAP_TLS_COMMON_H
19 * struct eap_ssl_data - TLS data for EAP methods
23 * conn - TLS connection context data from tls_connection_init()
25 struct tls_connection
*conn
;
28 * tls_out - TLS message to be sent out in fragments
30 struct wpabuf
*tls_out
;
33 * tls_out_pos - The current position in the outgoing TLS message
38 * tls_out_limit - Maximum fragment size for outgoing TLS messages
43 * tls_in - Received TLS message buffer for re-assembly
45 struct wpabuf
*tls_in
;
48 * tls_in_left - Number of remaining bytes in the incoming TLS message
53 * tls_in_total - Total number of bytes in the incoming TLS message
58 * phase2 - Whether this TLS connection is used in EAP phase 2 (tunnel)
63 * include_tls_length - Whether the TLS length field is included even
64 * if the TLS data is not fragmented
66 int include_tls_length
;
69 * tls_ia - Whether TLS/IA is enabled for this TLS connection
74 * eap - EAP state machine allocated with eap_peer_sm_init()
81 #define EAP_TLS_FLAGS_LENGTH_INCLUDED 0x80
82 #define EAP_TLS_FLAGS_MORE_FRAGMENTS 0x40
83 #define EAP_TLS_FLAGS_START 0x20
84 #define EAP_TLS_VERSION_MASK 0x07
86 /* could be up to 128 bytes, but only the first 64 bytes are used */
87 #define EAP_TLS_KEY_LEN 64
90 int eap_peer_tls_ssl_init(struct eap_sm
*sm
, struct eap_ssl_data
*data
,
91 struct eap_peer_config
*config
);
92 void eap_peer_tls_ssl_deinit(struct eap_sm
*sm
, struct eap_ssl_data
*data
);
93 u8
* eap_peer_tls_derive_key(struct eap_sm
*sm
, struct eap_ssl_data
*data
,
94 const char *label
, size_t len
);
95 int eap_peer_tls_process_helper(struct eap_sm
*sm
, struct eap_ssl_data
*data
,
96 EapType eap_type
, int peap_version
,
97 u8 id
, const u8
*in_data
, size_t in_len
,
98 struct wpabuf
**out_data
);
99 struct wpabuf
* eap_peer_tls_build_ack(u8 id
, EapType eap_type
,
101 int eap_peer_tls_reauth_init(struct eap_sm
*sm
, struct eap_ssl_data
*data
);
102 int eap_peer_tls_status(struct eap_sm
*sm
, struct eap_ssl_data
*data
,
103 char *buf
, size_t buflen
, int verbose
);
104 const u8
* eap_peer_tls_process_init(struct eap_sm
*sm
,
105 struct eap_ssl_data
*data
,
107 struct eap_method_ret
*ret
,
108 const struct wpabuf
*reqData
,
109 size_t *len
, u8
*flags
);
110 void eap_peer_tls_reset_input(struct eap_ssl_data
*data
);
111 void eap_peer_tls_reset_output(struct eap_ssl_data
*data
);
112 int eap_peer_tls_decrypt(struct eap_sm
*sm
, struct eap_ssl_data
*data
,
113 const struct wpabuf
*in_data
,
114 struct wpabuf
**in_decrypted
);
115 int eap_peer_tls_encrypt(struct eap_sm
*sm
, struct eap_ssl_data
*data
,
116 EapType eap_type
, int peap_version
, u8 id
,
117 const struct wpabuf
*in_data
,
118 struct wpabuf
**out_data
);
119 int eap_peer_select_phase2_methods(struct eap_peer_config
*config
,
121 struct eap_method_type
**types
,
123 int eap_peer_tls_phase2_nak(struct eap_method_type
*types
, size_t num_types
,
124 struct eap_hdr
*hdr
, struct wpabuf
**resp
);
126 #endif /* EAP_TLS_COMMON_H */