2 * EAP-TLS/PEAP/TTLS/FAST server 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 * phase2 - Whether this TLS connection is used in EAP phase 2 (tunnel)
53 * eap - EAP state machine allocated with eap_server_sm_init()
57 enum { MSG, FRAG_ACK, WAIT_FRAG_ACK } state;
63 #define EAP_TLS_FLAGS_LENGTH_INCLUDED 0x80
64 #define EAP_TLS_FLAGS_MORE_FRAGMENTS 0x40
65 #define EAP_TLS_FLAGS_START 0x20
66 #define EAP_TLS_VERSION_MASK 0x07
68 /* could be up to 128 bytes, but only the first 64 bytes are used */
69 #define EAP_TLS_KEY_LEN 64
72 int eap_server_tls_ssl_init(struct eap_sm *sm, struct eap_ssl_data *data,
74 void eap_server_tls_ssl_deinit(struct eap_sm *sm, struct eap_ssl_data *data);
75 u8 * eap_server_tls_derive_key(struct eap_sm *sm, struct eap_ssl_data *data,
76 char *label, size_t len);
77 struct wpabuf * eap_server_tls_build_msg(struct eap_ssl_data *data,
78 int eap_type, int version, u8 id);
79 struct wpabuf * eap_server_tls_build_ack(u8 id, int eap_type, int version);
80 int eap_server_tls_phase1(struct eap_sm *sm, struct eap_ssl_data *data);
81 struct wpabuf * eap_server_tls_encrypt(struct eap_sm *sm,
82 struct eap_ssl_data *data,
83 const struct wpabuf *plain);
84 int eap_server_tls_process(struct eap_sm *sm, struct eap_ssl_data *data,
85 struct wpabuf *respData, void *priv, int eap_type,
86 int (*proc_version)(struct eap_sm *sm, void *priv,
88 void (*proc_msg)(struct eap_sm *sm, void *priv,
89 const struct wpabuf *respData));
91 #endif /* EAP_TLS_COMMON_H */