a4e3691616
In order to be able to perform secure LTF measurements, both the initiator and the responder need to first derive TK and KDK and store them, so they would later be available for the secure LTF negotiation. Add a basic implementation of a PTKSA cache that stores derived TK/KDK which can later be used for secure LTF negotiation, and add it to the build configuration. Signed-off-by: Ilan Peer <ilan.peer@intel.com>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/*
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* RSN PTKSA cache interface
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*
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* Copyright (C) 2019 Intel Corporation
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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 PTKSA_CACHE_H
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#define PTKSA_CACHE_H
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#include "wpa_common.h"
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#include "defs.h"
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#include "list.h"
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/**
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* struct ptksa_cache_entry - PTKSA cache entry
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*/
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struct ptksa_cache_entry {
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struct dl_list list;
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struct wpa_ptk ptk;
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os_time_t expiration;
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u32 cipher;
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u8 addr[ETH_ALEN];
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};
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#ifdef CONFIG_PTKSA_CACHE
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struct ptksa_cache;
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struct ptksa_cache * ptksa_cache_init(void);
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void ptksa_cache_deinit(struct ptksa_cache *ptksa);
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struct ptksa_cache_entry * ptksa_cache_get(struct ptksa_cache *ptksa,
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const u8 *addr, u32 cipher);
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int ptksa_cache_list(struct ptksa_cache *ptksa, char *buf, size_t len);
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struct ptksa_cache_entry * ptksa_cache_add(struct ptksa_cache *ptksa,
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const u8 *addr, u32 cipher,
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u32 life_time,
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const struct wpa_ptk *ptk);
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void ptksa_cache_flush(struct ptksa_cache *ptksa, const u8 *addr, u32 cipher);
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#else /* CONFIG_PTKSA_CACHE */
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static inline struct ptksa_cache * ptksa_cache_init(void)
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{
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return (struct ptksa_cache *) 1;
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}
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static inline void ptksa_cache_deinit(struct ptksa_cache *ptksa)
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{
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}
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static inline struct ptksa_cache_entry *
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ptksa_cache_get(struct ptksa_cache *ptksa, const u8 *addr, u32 cipher)
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{
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return NULL;
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}
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static inline int ptksa_cache_list(struct ptksa_cache *ptksa,
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char *buf, size_t len)
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{
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return -1;
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}
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static inline struct ptksa_cache_entry *
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ptksa_cache_add(struct ptksa_cache *ptksa, const u8 *addr, u32 cipher,
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u32 life_time, const struct wpa_ptk *ptk)
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{
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return NULL;
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}
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static inline void ptksa_cache_flush(struct ptksa_cache *ptksa,
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const u8 *addr, u32 cipher)
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{
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}
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#endif /* CONFIG_PTKSA_CACHE */
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#endif /* PTKSA_CACHE_H */
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