/*
   * Copyright 2002-2004, Instant802 Networks, Inc.
   *
   * 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.
   */
  
  #ifndef TKIP_H
  #define TKIP_H
  
  #include <linux/types.h>
  #include <linux/crypto.h>

  #include "key.h"

  u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key);

  int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm,

  				struct ieee80211_key *key,
  				struct sk_buff *skb,
  				u8 *payload, size_t payload_len);

  enum {
  	TKIP_DECRYPT_OK = 0,
  	TKIP_DECRYPT_NO_EXT_IV = -1,
  	TKIP_DECRYPT_INVALID_KEYIDX = -2,
  	TKIP_DECRYPT_REPLAY = -3,
  };

  int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm,

  				struct ieee80211_key *key,
  				u8 *payload, size_t payload_len, u8 *ta,

  				u8 *ra, int only_iv, int queue,

  				u32 *out_iv32, u16 *out_iv16);

  
  #endif /* TKIP_H */