wpa_supplicant_node: eapol_auth

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00001 /*
00002  * IEEE 802.1X-2004 Authenticator - EAPOL state machine
00003  * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License version 2 as
00007  * published by the Free Software Foundation.
00008  *
00009  * Alternatively, this software may be distributed under the terms of BSD
00010  * license.
00011  *
00012  * See README and COPYING for more details.
00013  */
00014 
00015 #ifndef EAPOL_AUTH_SM_H
00016 #define EAPOL_AUTH_SM_H
00017 
00018 #define EAPOL_SM_PREAUTH BIT(0)
00019 #define EAPOL_SM_WAIT_START BIT(1)
00020 #define EAPOL_SM_USES_WPA BIT(2)
00021 #define EAPOL_SM_FROM_PMKSA_CACHE BIT(3)
00022 
00023 struct eapol_auth_config {
00024         int eap_reauth_period;
00025         int wpa;
00026         int individual_wep_key_len;
00027         int eap_server;
00028         void *ssl_ctx;
00029         void *msg_ctx;
00030         void *eap_sim_db_priv;
00031         char *eap_req_id_text; /* a copy of this will be allocated */
00032         size_t eap_req_id_text_len;
00033         u8 *pac_opaque_encr_key;
00034         u8 *eap_fast_a_id;
00035         size_t eap_fast_a_id_len;
00036         char *eap_fast_a_id_info;
00037         int eap_fast_prov;
00038         int pac_key_lifetime;
00039         int pac_key_refresh_time;
00040         int eap_sim_aka_result_ind;
00041         int tnc;
00042         struct wps_context *wps;
00043 
00044         /* Opaque context pointer to owner data for callback functions */
00045         void *ctx;
00046 };
00047 
00048 struct eap_user;
00049 
00050 typedef enum {
00051         EAPOL_LOGGER_DEBUG, EAPOL_LOGGER_INFO, EAPOL_LOGGER_WARNING
00052 } eapol_logger_level;
00053 
00054 enum eapol_event {
00055         EAPOL_AUTH_SM_CHANGE,
00056         EAPOL_AUTH_REAUTHENTICATE
00057 };
00058 
00059 struct eapol_auth_cb {
00060         void (*eapol_send)(void *ctx, void *sta_ctx, u8 type, const u8 *data,
00061                            size_t datalen);
00062         void (*aaa_send)(void *ctx, void *sta_ctx, const u8 *data,
00063                          size_t datalen);
00064         void (*finished)(void *ctx, void *sta_ctx, int success, int preauth);
00065         int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len,
00066                             int phase2, struct eap_user *user);
00067         int (*sta_entry_alive)(void *ctx, const u8 *addr);
00068         void (*logger)(void *ctx, const u8 *addr, eapol_logger_level level,
00069                        const char *txt);
00070         void (*set_port_authorized)(void *ctx, void *sta_ctx, int authorized);
00071         void (*abort_auth)(void *ctx, void *sta_ctx);
00072         void (*tx_key)(void *ctx, void *sta_ctx);
00073         void (*eapol_event)(void *ctx, void *sta_ctx, enum eapol_event type);
00074 };
00075 
00076 
00077 struct eapol_authenticator * eapol_auth_init(struct eapol_auth_config *conf,
00078                                              struct eapol_auth_cb *cb);
00079 void eapol_auth_deinit(struct eapol_authenticator *eapol);
00080 struct eapol_state_machine *
00081 eapol_auth_alloc(struct eapol_authenticator *eapol, const u8 *addr,
00082                  int flags, const struct wpabuf *assoc_wps_ie, void *sta_ctx);
00083 void eapol_auth_free(struct eapol_state_machine *sm);
00084 void eapol_auth_step(struct eapol_state_machine *sm);
00085 void eapol_auth_dump_state(FILE *f, const char *prefix,
00086                            struct eapol_state_machine *sm);
00087 int eapol_auth_eap_pending_cb(struct eapol_state_machine *sm, void *ctx);
00088 
00089 #endif /* EAPOL_AUTH_SM_H */