1 /* 2 * wpa_supplicant - WPA2/RSN PMKSA cache functions 3 * Copyright (c) 2003-2006, Jouni Malinen <j (at) 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 */ 117
