1/*
2 * IEEE 802.1X-2004 Authenticator - EAPOL state machine
3 * Copyright (c) 2002-2009, 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 EAPOL_AUTH_SM_H
10#define EAPOL_AUTH_SM_H
11
12#define EAPOL_SM_PREAUTH BIT(0)
13#define EAPOL_SM_WAIT_START BIT(1)
14#define EAPOL_SM_USES_WPA BIT(2)
15#define EAPOL_SM_FROM_PMKSA_CACHE BIT(3)
16
17struct eapol_auth_config {
18	int eap_reauth_period;
19	int wpa;
20	int individual_wep_key_len;
21	int eap_server;
22	void *ssl_ctx;
23	void *msg_ctx;
24	void *eap_sim_db_priv;
25	char *eap_req_id_text; /* a copy of this will be allocated */
26	size_t eap_req_id_text_len;
27	u8 *pac_opaque_encr_key;
28	u8 *eap_fast_a_id;
29	size_t eap_fast_a_id_len;
30	char *eap_fast_a_id_info;
31	int eap_fast_prov;
32	int pac_key_lifetime;
33	int pac_key_refresh_time;
34	int eap_sim_aka_result_ind;
35	int tnc;
36	struct wps_context *wps;
37	int fragment_size;
38	u16 pwd_group;
39	int pbc_in_m1;
40	const u8 *server_id;
41	size_t server_id_len;
42
43	/* Opaque context pointer to owner data for callback functions */
44	void *ctx;
45};
46
47struct eap_user;
48
49typedef enum {
50	EAPOL_LOGGER_DEBUG, EAPOL_LOGGER_INFO, EAPOL_LOGGER_WARNING
51} eapol_logger_level;
52
53enum eapol_event {
54	EAPOL_AUTH_SM_CHANGE,
55	EAPOL_AUTH_REAUTHENTICATE
56};
57
58struct eapol_auth_cb {
59	void (*eapol_send)(void *ctx, void *sta_ctx, u8 type, const u8 *data,
60			   size_t datalen);
61	void (*aaa_send)(void *ctx, void *sta_ctx, const u8 *data,
62			 size_t datalen);
63	void (*finished)(void *ctx, void *sta_ctx, int success, int preauth,
64			 int remediation);
65	int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len,
66			    int phase2, struct eap_user *user);
67	int (*sta_entry_alive)(void *ctx, const u8 *addr);
68	void (*logger)(void *ctx, const u8 *addr, eapol_logger_level level,
69		       const char *txt);
70	void (*set_port_authorized)(void *ctx, void *sta_ctx, int authorized);
71	void (*abort_auth)(void *ctx, void *sta_ctx);
72	void (*tx_key)(void *ctx, void *sta_ctx);
73	void (*eapol_event)(void *ctx, void *sta_ctx, enum eapol_event type);
74};
75
76
77struct eapol_authenticator * eapol_auth_init(struct eapol_auth_config *conf,
78					     struct eapol_auth_cb *cb);
79void eapol_auth_deinit(struct eapol_authenticator *eapol);
80struct eapol_state_machine *
81eapol_auth_alloc(struct eapol_authenticator *eapol, const u8 *addr,
82		 int flags, const struct wpabuf *assoc_wps_ie,
83		 const struct wpabuf *assoc_p2p_ie, void *sta_ctx,
84		 const char *identity, const char *radius_cui);
85void eapol_auth_free(struct eapol_state_machine *sm);
86void eapol_auth_step(struct eapol_state_machine *sm);
87int eapol_auth_dump_state(struct eapol_state_machine *sm, char *buf,
88			  size_t buflen);
89int eapol_auth_eap_pending_cb(struct eapol_state_machine *sm, void *ctx);
90
91#endif /* EAPOL_AUTH_SM_H */
92