sys/dev/netif/ath/hal/ath_hal/ar5416/ar5416_keycache.c

   1 /*
   2  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
   3  * Copyright (c) 2002-2008 Atheros Communications, Inc.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  *
  17  * $FreeBSD: head/sys/dev/ath/ath_hal/ar5416/ar5416_keycache.c 203158 2010-01-29 10:07:17Z rpaulo $
  18  */
  19 #include "opt_ah.h"
  20
  21 #include "ah.h"
  22 #include "ah_internal.h"
  23
  24 #include "ar5416/ar5416.h"
  25
  26 static const int keyType[] = {
  27         1,      /* HAL_CIPHER_WEP */
  28         0,      /* HAL_CIPHER_AES_OCB */
  29         2,      /* HAL_CIPHER_AES_CCM */
  30         0,      /* HAL_CIPHER_CKIP */
  31         3,      /* HAL_CIPHER_TKIP */
  32         0,      /* HAL_CIPHER_CLR */
  33 };
  34
  35 /*
  36  * Clear the specified key cache entry and any associated MIC entry.
  37  */
  38 HAL_BOOL
  39 ar5416ResetKeyCacheEntry(struct ath_hal *ah, uint16_t entry)
  40 {
  41         struct ath_hal_5416 *ahp = AH5416(ah);
  42
  43         if (ar5212ResetKeyCacheEntry(ah, entry)) {
  44                 ahp->ah_keytype[entry] = keyType[HAL_CIPHER_CLR];
  45                 return AH_TRUE;
  46         } else
  47                 return AH_FALSE;
  48 }
  49
  50 /*
  51  * Sets the contents of the specified key cache entry
  52  * and any associated MIC entry.
  53  */
  54 HAL_BOOL
  55 ar5416SetKeyCacheEntry(struct ath_hal *ah, uint16_t entry,
  56                        const HAL_KEYVAL *k, const uint8_t *mac,
  57                        int xorKey)
  58 {
  59         struct ath_hal_5416 *ahp = AH5416(ah);
  60
  61         if (ar5212SetKeyCacheEntry(ah, entry, k, mac, xorKey)) {
  62                 ahp->ah_keytype[entry] = keyType[k->kv_type];
  63                 return AH_TRUE;
  64         } else
  65                 return AH_FALSE;
  66 }