src/eapol_auth/eapol_auth_sm.h

   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
  23 struct 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 *eap_sim_db_priv;
  30         char *eap_req_id_text; /* a copy of this will be allocated */
  31         size_t eap_req_id_text_len;
  32         u8 *pac_opaque_encr_key;
  33         u8 *eap_fast_a_id;
  34         size_t eap_fast_a_id_len;
  35         char *eap_fast_a_id_info;
  36         int eap_fast_prov;
  37         int pac_key_lifetime;
  38         int pac_key_refresh_time;
  39         int eap_sim_aka_result_ind;
  40         int tnc;
  41         struct wps_context *wps;
  42
  43         /* Opaque context pointer to owner data for callback functions */
  44         void *ctx;
  45 };
  46
  47 struct eap_user;
  48
  49 typedef enum {
  50         EAPOL_LOGGER_DEBUG, EAPOL_LOGGER_INFO, EAPOL_LOGGER_WARNING
  51 } eapol_logger_level;
  52
  53 enum eapol_event {
  54         EAPOL_AUTH_SM_CHANGE,
  55         EAPOL_AUTH_REAUTHENTICATE
  56 };
  57
  58 struct 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 (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len,
  65                             int phase2, struct eap_user *user);
  66         int (*sta_entry_alive)(void *ctx, const u8 *addr);
  67         void (*logger)(void *ctx, const u8 *addr, eapol_logger_level level,
  68                        const char *txt);
  69         void (*set_port_authorized)(void *ctx, void *sta_ctx, int authorized);
  70         void (*abort_auth)(void *ctx, void *sta_ctx);
  71         void (*tx_key)(void *ctx, void *sta_ctx);
  72         void (*eapol_event)(void *ctx, void *sta_ctx, enum eapol_event type);
  73 };
  74
  75
  76 struct eapol_authenticator * eapol_auth_init(struct eapol_auth_config *conf,
  77                                              struct eapol_auth_cb *cb);
  78 void eapol_auth_deinit(struct eapol_authenticator *eapol);
  79 struct eapol_state_machine *
  80 eapol_auth_alloc(struct eapol_authenticator *eapol, const u8 *addr,
  81                  int flags, const struct wpabuf *assoc_wps_ie, void *sta_ctx);
  82 void eapol_auth_free(struct eapol_state_machine *sm);
  83 void eapol_auth_step(struct eapol_state_machine *sm);
  84 void eapol_auth_dump_state(FILE *f, const char *prefix,
  85                            struct eapol_state_machine *sm);
  86 int eapol_auth_eap_pending_cb(struct eapol_state_machine *sm, void *ctx);
  87
  88 #endif /* EAPOL_AUTH_SM_H */