hostap/hostapd/pmksa_cache.h
Jouni Malinen bf98f7f3bc Added support for opportunistic key caching (OKC)
This allows hostapd to share the PMKSA caches internally when multiple
BSSes or radios are being controlled by the same hostapd process.
2008-08-03 20:17:58 +03:00

62 lines
1.9 KiB
C

/*
* hostapd - PMKSA cache for IEEE 802.11i RSN
* Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#ifndef PMKSA_CACHE_H
#define PMKSA_CACHE_H
/**
* struct rsn_pmksa_cache_entry - PMKSA cache entry
*/
struct rsn_pmksa_cache_entry {
struct rsn_pmksa_cache_entry *next, *hnext;
u8 pmkid[PMKID_LEN];
u8 pmk[PMK_LEN];
size_t pmk_len;
os_time_t expiration;
int akmp; /* WPA_KEY_MGMT_* */
u8 spa[ETH_ALEN];
u8 *identity;
size_t identity_len;
struct radius_class_data radius_class;
u8 eap_type_authsrv;
int vlan_id;
int opportunistic;
};
struct rsn_pmksa_cache;
struct rsn_pmksa_cache *
pmksa_cache_init(void (*free_cb)(struct rsn_pmksa_cache_entry *entry,
void *ctx), void *ctx);
void pmksa_cache_deinit(struct rsn_pmksa_cache *pmksa);
struct rsn_pmksa_cache_entry * pmksa_cache_get(struct rsn_pmksa_cache *pmksa,
const u8 *spa, const u8 *pmkid);
struct rsn_pmksa_cache_entry * pmksa_cache_get_okc(
struct rsn_pmksa_cache *pmksa, const u8 *spa, const u8 *aa,
const u8 *pmkid);
struct rsn_pmksa_cache_entry *
pmksa_cache_add(struct rsn_pmksa_cache *pmksa, const u8 *pmk, size_t pmk_len,
const u8 *aa, const u8 *spa, int session_timeout,
struct eapol_state_machine *eapol);
struct rsn_pmksa_cache_entry *
pmksa_cache_add_okc(struct rsn_pmksa_cache *pmksa,
const struct rsn_pmksa_cache_entry *old_entry,
const u8 *aa, const u8 *pmkid);
void pmksa_cache_to_eapol_data(struct rsn_pmksa_cache_entry *entry,
struct eapol_state_machine *eapol);
void rsn_pmkid(const u8 *pmk, size_t pmk_len, const u8 *aa, const u8 *spa,
u8 *pmkid);
#endif /* PMKSA_CACHE_H */