1/*
2 * IEEE 802.1X-2004 Authenticator - EAPOL state machine
3 * Copyright (c) 2002-2015, 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	const struct eap_config *eap_cfg;
19	int eap_reauth_period;
20	int wpa;
21	int individual_wep_key_len;
22	char *eap_req_id_text; /* a copy of this will be allocated */
23	size_t eap_req_id_text_len;
24	int erp_send_reauth_start;
25	char *erp_domain; /* a copy of this will be allocated */
26
27	/* Opaque context pointer to owner data for callback functions */
28	void *ctx;
29};
30
31struct eap_user;
32struct eap_server_erp_key;
33
34typedef enum {
35	EAPOL_LOGGER_DEBUG, EAPOL_LOGGER_INFO, EAPOL_LOGGER_WARNING
36} eapol_logger_level;
37
38enum eapol_event {
39	EAPOL_AUTH_SM_CHANGE,
40	EAPOL_AUTH_REAUTHENTICATE
41};
42
43struct eapol_auth_cb {
44	void (*eapol_send)(void *ctx, void *sta_ctx, u8 type, const u8 *data,
45			   size_t datalen);
46	void (*aaa_send)(void *ctx, void *sta_ctx, const u8 *data,
47			 size_t datalen);
48	void (*finished)(void *ctx, void *sta_ctx, int success, int preauth,
49			 int remediation);
50	int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len,
51			    int phase2, struct eap_user *user);
52	int (*sta_entry_alive)(void *ctx, const u8 *addr);
53	void (*logger)(void *ctx, const u8 *addr, eapol_logger_level level,
54		       const char *txt);
55	void (*set_port_authorized)(void *ctx, void *sta_ctx, int authorized);
56	void (*abort_auth)(void *ctx, void *sta_ctx);
57	void (*tx_key)(void *ctx, void *sta_ctx);
58	void (*eapol_event)(void *ctx, void *sta_ctx, enum eapol_event type);
59	struct eap_server_erp_key * (*erp_get_key)(void *ctx,
60						   const char *keyname);
61	int (*erp_add_key)(void *ctx, struct eap_server_erp_key *erp);
62};
63
64
65struct eapol_authenticator * eapol_auth_init(struct eapol_auth_config *conf,
66					     struct eapol_auth_cb *cb);
67void eapol_auth_deinit(struct eapol_authenticator *eapol);
68struct eapol_state_machine *
69eapol_auth_alloc(struct eapol_authenticator *eapol, const u8 *addr,
70		 int flags, const struct wpabuf *assoc_wps_ie,
71		 const struct wpabuf *assoc_p2p_ie, void *sta_ctx,
72		 const char *identity, const char *radius_cui);
73void eapol_auth_free(struct eapol_state_machine *sm);
74void eapol_auth_step(struct eapol_state_machine *sm);
75int eapol_auth_dump_state(struct eapol_state_machine *sm, char *buf,
76			  size_t buflen);
77int eapol_auth_eap_pending_cb(struct eapol_state_machine *sm, void *ctx);
78void eapol_auth_reauthenticate(struct eapol_state_machine *sm);
79int eapol_auth_set_conf(struct eapol_state_machine *sm, const char *param,
80			const char *value);
81
82#endif /* EAPOL_AUTH_SM_H */
83