eapol_auth_sm.h revision 87fd279308af3f806848c8f2ab65ef18c6ac4c30 
1/*
2 * IEEE 802.1X-2004 Authenticator - EAPOL state machine
3 * Copyright (c) 2002-2009, 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 EAPOL_AUTH_SM_H
16#define EAPOL_AUTH_SM_H
17
18#define EAPOL_SM_PREAUTH BIT(0)
19#define EAPOL_SM_WAIT_START BIT(1)
20#define EAPOL_SM_USES_WPA BIT(2)
21#define EAPOL_SM_FROM_PMKSA_CACHE BIT(3)
22
23struct eapol_auth_config {
24	int eap_reauth_period;
25	int wpa;
26	int individual_wep_key_len;
27	int eap_server;
28	void *ssl_ctx;
29	void *msg_ctx;
30	void *eap_sim_db_priv;
31	char *eap_req_id_text; /* a copy of this will be allocated */
32	size_t eap_req_id_text_len;
33	u8 *pac_opaque_encr_key;
34	u8 *eap_fast_a_id;
35	size_t eap_fast_a_id_len;
36	char *eap_fast_a_id_info;
37	int eap_fast_prov;
38	int pac_key_lifetime;
39	int pac_key_refresh_time;
40	int eap_sim_aka_result_ind;
41	int tnc;
42	struct wps_context *wps;
43	int fragment_size;
44	u16 pwd_group;
45	int pbc_in_m1;
46
47	/* Opaque context pointer to owner data for callback functions */
48	void *ctx;
49};
50
51struct eap_user;
52
53typedef enum {
54	EAPOL_LOGGER_DEBUG, EAPOL_LOGGER_INFO, EAPOL_LOGGER_WARNING
55} eapol_logger_level;
56
57enum eapol_event {
58	EAPOL_AUTH_SM_CHANGE,
59	EAPOL_AUTH_REAUTHENTICATE
60};
61
62struct eapol_auth_cb {
63	void (*eapol_send)(void *ctx, void *sta_ctx, u8 type, const u8 *data,
64			   size_t datalen);
65	void (*aaa_send)(void *ctx, void *sta_ctx, const u8 *data,
66			 size_t datalen);
67	void (*finished)(void *ctx, void *sta_ctx, int success, int preauth);
68	int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len,
69			    int phase2, struct eap_user *user);
70	int (*sta_entry_alive)(void *ctx, const u8 *addr);
71	void (*logger)(void *ctx, const u8 *addr, eapol_logger_level level,
72		       const char *txt);
73	void (*set_port_authorized)(void *ctx, void *sta_ctx, int authorized);
74	void (*abort_auth)(void *ctx, void *sta_ctx);
75	void (*tx_key)(void *ctx, void *sta_ctx);
76	void (*eapol_event)(void *ctx, void *sta_ctx, enum eapol_event type);
77};
78
79
80struct eapol_authenticator * eapol_auth_init(struct eapol_auth_config *conf,
81					     struct eapol_auth_cb *cb);
82void eapol_auth_deinit(struct eapol_authenticator *eapol);
83struct eapol_state_machine *
84eapol_auth_alloc(struct eapol_authenticator *eapol, const u8 *addr,
85		 int flags, const struct wpabuf *assoc_wps_ie,
86		 const struct wpabuf *assoc_p2p_ie, void *sta_ctx);
87void eapol_auth_free(struct eapol_state_machine *sm);
88void eapol_auth_step(struct eapol_state_machine *sm);
89void eapol_auth_dump_state(FILE *f, const char *prefix,
90			   struct eapol_state_machine *sm);
91int eapol_auth_eap_pending_cb(struct eapol_state_machine *sm, void *ctx);
92
93#endif /* EAPOL_AUTH_SM_H */
94