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127 lines
3.5 KiB
C
127 lines
3.5 KiB
C
/*
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* wpa_supplicant - WPA2/RSN PMKSA cache functions
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* Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef PMKSA_CACHE_H
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#define PMKSA_CACHE_H
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/**
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* struct rsn_pmksa_cache_entry - PMKSA cache entry
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*/
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struct rsn_pmksa_cache_entry {
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struct rsn_pmksa_cache_entry *next;
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u8 pmkid[PMKID_LEN];
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u8 pmk[PMK_LEN];
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size_t pmk_len;
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os_time_t expiration;
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int akmp; /* WPA_KEY_MGMT_* */
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u8 aa[ETH_ALEN];
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os_time_t reauth_time;
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/**
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* network_ctx - Network configuration context
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*
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* This field is only used to match PMKSA cache entries to a specific
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* network configuration (e.g., a specific SSID and security policy).
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* This can be a pointer to the configuration entry, but PMKSA caching
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* code does not dereference the value and this could be any kind of
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* identifier.
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*/
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void *network_ctx;
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int opportunistic;
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};
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struct rsn_pmksa_cache;
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#if defined(IEEE8021X_EAPOL) && !defined(CONFIG_NO_WPA2)
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struct rsn_pmksa_cache *
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pmksa_cache_init(void (*free_cb)(struct rsn_pmksa_cache_entry *entry,
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void *ctx, int replace),
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void *ctx, struct wpa_sm *sm);
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void pmksa_cache_deinit(struct rsn_pmksa_cache *pmksa);
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struct rsn_pmksa_cache_entry * pmksa_cache_get(struct rsn_pmksa_cache *pmksa,
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const u8 *aa, const u8 *pmkid);
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int pmksa_cache_list(struct rsn_pmksa_cache *pmksa, char *buf, size_t len);
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struct rsn_pmksa_cache_entry *
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pmksa_cache_add(struct rsn_pmksa_cache *pmksa, const u8 *pmk, size_t pmk_len,
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const u8 *aa, const u8 *spa, void *network_ctx, int akmp);
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void pmksa_cache_notify_reconfig(struct rsn_pmksa_cache *pmksa);
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struct rsn_pmksa_cache_entry * pmksa_cache_get_current(struct wpa_sm *sm);
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void pmksa_cache_clear_current(struct wpa_sm *sm);
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int pmksa_cache_set_current(struct wpa_sm *sm, const u8 *pmkid,
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const u8 *bssid, void *network_ctx,
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int try_opportunistic);
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struct rsn_pmksa_cache_entry *
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pmksa_cache_get_opportunistic(struct rsn_pmksa_cache *pmksa,
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void *network_ctx, const u8 *aa);
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#else /* IEEE8021X_EAPOL and !CONFIG_NO_WPA2 */
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static inline struct rsn_pmksa_cache *
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pmksa_cache_init(void (*free_cb)(struct rsn_pmksa_cache_entry *entry,
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void *ctx, int replace),
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void *ctx, struct wpa_sm *sm)
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{
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return (void *) -1;
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}
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static inline void pmksa_cache_deinit(struct rsn_pmksa_cache *pmksa)
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{
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}
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static inline struct rsn_pmksa_cache_entry *
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pmksa_cache_get(struct rsn_pmksa_cache *pmksa, const u8 *aa, const u8 *pmkid)
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{
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return NULL;
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}
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static inline struct rsn_pmksa_cache_entry *
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pmksa_cache_get_current(struct wpa_sm *sm)
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{
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return NULL;
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}
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static inline int pmksa_cache_list(struct rsn_pmksa_cache *pmksa, char *buf,
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size_t len)
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{
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return -1;
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}
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static inline struct rsn_pmksa_cache_entry *
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pmksa_cache_add(struct rsn_pmksa_cache *pmksa, const u8 *pmk, size_t pmk_len,
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const u8 *aa, const u8 *spa, void *network_ctx, int akmp)
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{
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return NULL;
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}
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static inline void pmksa_cache_notify_reconfig(struct rsn_pmksa_cache *pmksa)
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{
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}
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static inline void pmksa_cache_clear_current(struct wpa_sm *sm)
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{
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}
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static inline int pmksa_cache_set_current(struct wpa_sm *sm, const u8 *pmkid,
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const u8 *bssid,
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void *network_ctx,
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int try_opportunistic)
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{
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return -1;
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}
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#endif /* IEEE8021X_EAPOL and !CONFIG_NO_WPA2 */
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#endif /* PMKSA_CACHE_H */
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