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https://github.com/vanhoefm/fragattacks.git
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087a1f4efd
The new AKM uses a different mechanism of deriving the PMKID based on KCK instead of PMK. hostapd was already doing this after the KCK had been derived, but wpa_supplicant functionality needs to be moved from processing of EAPOL-Key frame 1/4 to 3/4 to have the KCK available. Signed-off-by: Jouni Malinen <j@w1.fi>
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/*
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* hostapd - PMKSA cache for IEEE 802.11i RSN
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* Copyright (c) 2004-2008, 2012, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README 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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#include "radius/radius.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, *hnext;
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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 spa[ETH_ALEN];
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u8 *identity;
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size_t identity_len;
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struct wpabuf *cui;
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struct radius_class_data radius_class;
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u8 eap_type_authsrv;
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int vlan_id;
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int opportunistic;
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u32 acct_multi_session_id_hi;
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u32 acct_multi_session_id_lo;
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};
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struct rsn_pmksa_cache;
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struct rsn_pmksa_cache *
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pmksa_cache_auth_init(void (*free_cb)(struct rsn_pmksa_cache_entry *entry,
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void *ctx), void *ctx);
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void pmksa_cache_auth_deinit(struct rsn_pmksa_cache *pmksa);
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struct rsn_pmksa_cache_entry *
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pmksa_cache_auth_get(struct rsn_pmksa_cache *pmksa,
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const u8 *spa, const u8 *pmkid);
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struct rsn_pmksa_cache_entry * pmksa_cache_get_okc(
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struct rsn_pmksa_cache *pmksa, const u8 *spa, const u8 *aa,
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const u8 *pmkid);
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struct rsn_pmksa_cache_entry *
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pmksa_cache_auth_add(struct rsn_pmksa_cache *pmksa,
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const u8 *pmk, size_t pmk_len,
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const u8 *kck, size_t kck_len,
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const u8 *aa, const u8 *spa, int session_timeout,
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struct eapol_state_machine *eapol, int akmp);
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struct rsn_pmksa_cache_entry *
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pmksa_cache_add_okc(struct rsn_pmksa_cache *pmksa,
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const struct rsn_pmksa_cache_entry *old_entry,
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const u8 *aa, const u8 *pmkid);
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void pmksa_cache_to_eapol_data(struct rsn_pmksa_cache_entry *entry,
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struct eapol_state_machine *eapol);
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void pmksa_cache_free_entry(struct rsn_pmksa_cache *pmksa,
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struct rsn_pmksa_cache_entry *entry);
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#endif /* PMKSA_CACHE_H */
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