contrib/wpa_supplicant-0.5.8/pmksa_cache.h

   1 /*
   2  * wpa_supplicant - WPA2/RSN PMKSA cache functions
   3  * Copyright (c) 2003-2006, 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;
  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 aa[ETH_ALEN];
  29
  30         os_time_t reauth_time;
  31         struct wpa_ssid *ssid;
  32         int opportunistic;
  33 };
  34
  35 struct rsn_pmksa_cache;
  36
  37 #if defined(IEEE8021X_EAPOL) && !defined(CONFIG_NO_WPA2)
  38
  39 struct rsn_pmksa_cache *
  40 pmksa_cache_init(void (*free_cb)(struct rsn_pmksa_cache_entry *entry,
  41                                  void *ctx, int replace),
  42                  void *ctx, struct wpa_sm *sm);
  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 *aa, const u8 *pmkid);
  46 int pmksa_cache_list(struct wpa_sm *sm, char *buf, size_t len);
  47 struct rsn_pmksa_cache_entry *
  48 pmksa_cache_add(struct rsn_pmksa_cache *pmksa, const u8 *pmk, size_t pmk_len,
  49                 const u8 *aa, const u8 *spa, struct wpa_ssid *ssid);
  50 void pmksa_cache_notify_reconfig(struct rsn_pmksa_cache *pmksa);
  51 struct rsn_pmksa_cache_entry * pmksa_cache_get_current(struct wpa_sm *sm);
  52 void pmksa_cache_clear_current(struct wpa_sm *sm);
  53 int pmksa_cache_set_current(struct wpa_sm *sm, const u8 *pmkid,
  54                             const u8 *bssid, struct wpa_ssid *ssid,
  55                             int try_opportunistic);
  56 struct rsn_pmksa_cache_entry *
  57 pmksa_cache_get_opportunistic(struct rsn_pmksa_cache *pmksa,
  58                               struct wpa_ssid *ssid, const u8 *aa);
  59
  60 #else /* IEEE8021X_EAPOL and !CONFIG_NO_WPA2 */
  61
  62 static inline struct rsn_pmksa_cache *
  63 pmksa_cache_init(void (*free_cb)(struct rsn_pmksa_cache_entry *entry,
  64                                  void *ctx, int replace),
  65                  void *ctx, struct wpa_sm *sm)
  66 {
  67         return (void *) -1;
  68 }
  69
  70 static inline void pmksa_cache_deinit(struct rsn_pmksa_cache *pmksa)
  71 {
  72 }
  73
  74 static inline struct rsn_pmksa_cache_entry *
  75 pmksa_cache_get(struct rsn_pmksa_cache *pmksa, const u8 *aa, const u8 *pmkid)
  76 {
  77         return NULL;
  78 }
  79
  80 static inline struct rsn_pmksa_cache_entry *
  81 pmksa_cache_get_current(struct wpa_sm *sm)
  82 {
  83         return NULL;
  84 }
  85
  86 static inline int pmksa_cache_list(struct wpa_sm *sm, char *buf, size_t len)
  87 {
  88         return -1;
  89 }
  90
  91 static inline struct rsn_pmksa_cache_entry *
  92 pmksa_cache_add(struct rsn_pmksa_cache *pmksa, const u8 *pmk, size_t pmk_len,
  93                 const u8 *aa, const u8 *spa, struct wpa_ssid *ssid)
  94 {
  95         return NULL;
  96 }
  97
  98 static inline void pmksa_cache_notify_reconfig(struct rsn_pmksa_cache *pmksa)
  99 {
 100 }
 101
 102 static inline void pmksa_cache_clear_current(struct wpa_sm *sm)
 103 {
 104 }
 105
 106 static inline int pmksa_cache_set_current(struct wpa_sm *sm, const u8 *pmkid,
 107                                           const u8 *bssid,
 108                                           struct wpa_ssid *ssid,
 109                                           int try_opportunistic)
 110 {
 111         return -1;
 112 }
 113
 114 #endif /* IEEE8021X_EAPOL and !CONFIG_NO_WPA2 */
 115
 116 #endif /* PMKSA_CACHE_H */