1/*
2 * Copyright 2002-2004, Instant802 Networks, Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#ifndef TKIP_H
10#define TKIP_H
11
12#include <linux/types.h>
13#include <linux/crypto.h>
14#include "ieee80211_key.h"
15
16u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
17			   u8 iv0, u8 iv1, u8 iv2);
18void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
19				  u16 *phase1key);
20void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
21			       u8 *rc4key);
22void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
23				 struct ieee80211_key *key,
24				 u8 *pos, size_t payload_len, u8 *ta);
25enum {
26	TKIP_DECRYPT_OK = 0,
27	TKIP_DECRYPT_NO_EXT_IV = -1,
28	TKIP_DECRYPT_INVALID_KEYIDX = -2,
29	TKIP_DECRYPT_REPLAY = -3,
30};
31int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
32				struct ieee80211_key *key,
33				u8 *payload, size_t payload_len, u8 *ta,
34				int only_iv, int queue);
35
36#endif /* TKIP_H */
37