2 * EAP-TLS/PEAP/TTLS/FAST server common functions
3 * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
9 #ifndef EAP_TLS_COMMON_H
10 #define EAP_TLS_COMMON_H
13 * struct eap_ssl_data - TLS data for EAP methods
17 * conn - TLS connection context data from tls_connection_init()
19 struct tls_connection *conn;
22 * tls_out - TLS message to be sent out in fragments
24 struct wpabuf *tls_out;
27 * tls_out_pos - The current position in the outgoing TLS message
32 * tls_out_limit - Maximum fragment size for outgoing TLS messages
37 * tls_in - Received TLS message buffer for re-assembly
39 struct wpabuf *tls_in;
42 * phase2 - Whether this TLS connection is used in EAP phase 2 (tunnel)
47 * eap - EAP state machine allocated with eap_server_sm_init()
51 enum { MSG, FRAG_ACK, WAIT_FRAG_ACK } state;
57 #define EAP_TLS_FLAGS_LENGTH_INCLUDED 0x80
58 #define EAP_TLS_FLAGS_MORE_FRAGMENTS 0x40
59 #define EAP_TLS_FLAGS_START 0x20
60 #define EAP_TLS_VERSION_MASK 0x07
62 /* could be up to 128 bytes, but only the first 64 bytes are used */
63 #define EAP_TLS_KEY_LEN 64
65 /* dummy type used as a flag for UNAUTH-TLS */
66 #define EAP_UNAUTH_TLS_TYPE 255
69 struct wpabuf * eap_tls_msg_alloc(EapType type, size_t payload_len,
70 u8 code, u8 identifier);
71 int eap_server_tls_ssl_init(struct eap_sm *sm, struct eap_ssl_data *data,
73 void eap_server_tls_ssl_deinit(struct eap_sm *sm, struct eap_ssl_data *data);
74 u8 * eap_server_tls_derive_key(struct eap_sm *sm, struct eap_ssl_data *data,
75 char *label, size_t len);
76 struct wpabuf * eap_server_tls_build_msg(struct eap_ssl_data *data,
77 int eap_type, int version, u8 id);
78 struct wpabuf * eap_server_tls_build_ack(u8 id, int eap_type, int version);
79 int eap_server_tls_phase1(struct eap_sm *sm, struct eap_ssl_data *data);
80 struct wpabuf * eap_server_tls_encrypt(struct eap_sm *sm,
81 struct eap_ssl_data *data,
82 const struct wpabuf *plain);
83 int eap_server_tls_process(struct eap_sm *sm, struct eap_ssl_data *data,
84 struct wpabuf *respData, void *priv, int eap_type,
85 int (*proc_version)(struct eap_sm *sm, void *priv,
87 void (*proc_msg)(struct eap_sm *sm, void *priv,
88 const struct wpabuf *respData));
90 #endif /* EAP_TLS_COMMON_H */