dist/wpa/hostapd/pmksa_cache.h

   1 /*
   2  * hostapd - PMKSA cache for IEEE 802.11i RSN
   3  * Copyright (c) 2004-2006, 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 PMKSA_CACHE_H
  16 #define PMKSA_CACHE_H
  17
  18 /**
  19  * struct rsn_pmksa_cache_entry - PMKSA cache entry
  20  */
  21 struct rsn_pmksa_cache_entry {
  22         struct rsn_pmksa_cache_entry *next, *hnext;
  23         u8 pmkid[PMKID_LEN];
  24         u8 pmk[PMK_LEN];
  25         size_t pmk_len;
  26         os_time_t expiration;
  27         int akmp; /* WPA_KEY_MGMT_* */
  28         u8 spa[ETH_ALEN];
  29
  30         u8 *identity;
  31         size_t identity_len;
  32         struct radius_class_data radius_class;
  33         u8 eap_type_authsrv;
  34         int vlan_id;
  35         int opportunistic;
  36 };
  37
  38 struct rsn_pmksa_cache;
  39
  40 struct rsn_pmksa_cache *
  41 pmksa_cache_init(void (*free_cb)(struct rsn_pmksa_cache_entry *entry,
  42                                  void *ctx), void *ctx);
  43 void pmksa_cache_deinit(struct rsn_pmksa_cache *pmksa);
  44 struct rsn_pmksa_cache_entry * pmksa_cache_get(struct rsn_pmksa_cache *pmksa,
  45                                                const u8 *spa, const u8 *pmkid);
  46 struct rsn_pmksa_cache_entry * pmksa_cache_get_okc(
  47         struct rsn_pmksa_cache *pmksa, const u8 *spa, const u8 *aa,
  48         const u8 *pmkid);
  49 struct rsn_pmksa_cache_entry *
  50 pmksa_cache_add(struct rsn_pmksa_cache *pmksa, const u8 *pmk, size_t pmk_len,
  51                 const u8 *aa, const u8 *spa, int session_timeout,
  52                 struct eapol_state_machine *eapol);
  53 struct rsn_pmksa_cache_entry *
  54 pmksa_cache_add_okc(struct rsn_pmksa_cache *pmksa,
  55                     const struct rsn_pmksa_cache_entry *old_entry,
  56                     const u8 *aa, const u8 *pmkid);
  57 void pmksa_cache_to_eapol_data(struct rsn_pmksa_cache_entry *entry,
  58                                struct eapol_state_machine *eapol);
  59 void rsn_pmkid(const u8 *pmk, size_t pmk_len, const u8 *aa, const u8 *spa,
  60                u8 *pmkid);
  61
  62 #endif /* PMKSA_CACHE_H */