1214501Srpaulo/*
2214501Srpaulo * IEEE 802.1X-2004 Authenticator - EAPOL state machine
3214501Srpaulo * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
4214501Srpaulo *
5252726Srpaulo * This software may be distributed under the terms of the BSD license.
6252726Srpaulo * See README for more details.
7214501Srpaulo */
8214501Srpaulo
9214501Srpaulo#ifndef EAPOL_AUTH_SM_H
10214501Srpaulo#define EAPOL_AUTH_SM_H
11214501Srpaulo
12214501Srpaulo#define EAPOL_SM_PREAUTH BIT(0)
13214501Srpaulo#define EAPOL_SM_WAIT_START BIT(1)
14214501Srpaulo#define EAPOL_SM_USES_WPA BIT(2)
15214501Srpaulo#define EAPOL_SM_FROM_PMKSA_CACHE BIT(3)
16214501Srpaulo
17214501Srpaulostruct eapol_auth_config {
18214501Srpaulo	int eap_reauth_period;
19214501Srpaulo	int wpa;
20214501Srpaulo	int individual_wep_key_len;
21214501Srpaulo	int eap_server;
22214501Srpaulo	void *ssl_ctx;
23214501Srpaulo	void *msg_ctx;
24214501Srpaulo	void *eap_sim_db_priv;
25214501Srpaulo	char *eap_req_id_text; /* a copy of this will be allocated */
26214501Srpaulo	size_t eap_req_id_text_len;
27214501Srpaulo	u8 *pac_opaque_encr_key;
28214501Srpaulo	u8 *eap_fast_a_id;
29214501Srpaulo	size_t eap_fast_a_id_len;
30214501Srpaulo	char *eap_fast_a_id_info;
31214501Srpaulo	int eap_fast_prov;
32214501Srpaulo	int pac_key_lifetime;
33214501Srpaulo	int pac_key_refresh_time;
34214501Srpaulo	int eap_sim_aka_result_ind;
35214501Srpaulo	int tnc;
36214501Srpaulo	struct wps_context *wps;
37252726Srpaulo	int fragment_size;
38252726Srpaulo	u16 pwd_group;
39252726Srpaulo	int pbc_in_m1;
40214501Srpaulo
41214501Srpaulo	/* Opaque context pointer to owner data for callback functions */
42214501Srpaulo	void *ctx;
43214501Srpaulo};
44214501Srpaulo
45214501Srpaulostruct eap_user;
46214501Srpaulo
47214501Srpaulotypedef enum {
48214501Srpaulo	EAPOL_LOGGER_DEBUG, EAPOL_LOGGER_INFO, EAPOL_LOGGER_WARNING
49214501Srpaulo} eapol_logger_level;
50214501Srpaulo
51214501Srpauloenum eapol_event {
52214501Srpaulo	EAPOL_AUTH_SM_CHANGE,
53214501Srpaulo	EAPOL_AUTH_REAUTHENTICATE
54214501Srpaulo};
55214501Srpaulo
56214501Srpaulostruct eapol_auth_cb {
57214501Srpaulo	void (*eapol_send)(void *ctx, void *sta_ctx, u8 type, const u8 *data,
58214501Srpaulo			   size_t datalen);
59214501Srpaulo	void (*aaa_send)(void *ctx, void *sta_ctx, const u8 *data,
60214501Srpaulo			 size_t datalen);
61214501Srpaulo	void (*finished)(void *ctx, void *sta_ctx, int success, int preauth);
62214501Srpaulo	int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len,
63214501Srpaulo			    int phase2, struct eap_user *user);
64214501Srpaulo	int (*sta_entry_alive)(void *ctx, const u8 *addr);
65214501Srpaulo	void (*logger)(void *ctx, const u8 *addr, eapol_logger_level level,
66214501Srpaulo		       const char *txt);
67214501Srpaulo	void (*set_port_authorized)(void *ctx, void *sta_ctx, int authorized);
68214501Srpaulo	void (*abort_auth)(void *ctx, void *sta_ctx);
69214501Srpaulo	void (*tx_key)(void *ctx, void *sta_ctx);
70214501Srpaulo	void (*eapol_event)(void *ctx, void *sta_ctx, enum eapol_event type);
71214501Srpaulo};
72214501Srpaulo
73214501Srpaulo
74214501Srpaulostruct eapol_authenticator * eapol_auth_init(struct eapol_auth_config *conf,
75214501Srpaulo					     struct eapol_auth_cb *cb);
76214501Srpaulovoid eapol_auth_deinit(struct eapol_authenticator *eapol);
77214501Srpaulostruct eapol_state_machine *
78214501Srpauloeapol_auth_alloc(struct eapol_authenticator *eapol, const u8 *addr,
79252726Srpaulo		 int flags, const struct wpabuf *assoc_wps_ie,
80252726Srpaulo		 const struct wpabuf *assoc_p2p_ie, void *sta_ctx,
81252726Srpaulo		 const char *identity, const char *radius_cui);
82214501Srpaulovoid eapol_auth_free(struct eapol_state_machine *sm);
83214501Srpaulovoid eapol_auth_step(struct eapol_state_machine *sm);
84214501Srpaulovoid eapol_auth_dump_state(FILE *f, const char *prefix,
85214501Srpaulo			   struct eapol_state_machine *sm);
86214501Srpauloint eapol_auth_eap_pending_cb(struct eapol_state_machine *sm, void *ctx);
87214501Srpaulo
88214501Srpaulo#endif /* EAPOL_AUTH_SM_H */
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