ar5416_keycache.c revision 185377 
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 * $Id: ar5416_keycache.c,v 1.3 2008/11/10 04:08:04 sam Exp $
18 */
19#include "opt_ah.h"
20
21#ifdef AH_SUPPORT_AR5416
22
23#include "ah.h"
24#include "ah_internal.h"
25
26#include "ar5416/ar5416.h"
27
28static const int keyType[] = {
29	1,	/* HAL_CIPHER_WEP */
30	0,	/* HAL_CIPHER_AES_OCB */
31	2,	/* HAL_CIPHER_AES_CCM */
32	0,	/* HAL_CIPHER_CKIP */
33	3,	/* HAL_CIPHER_TKIP */
34	0,	/* HAL_CIPHER_CLR */
35};
36
37/*
38 * Clear the specified key cache entry and any associated MIC entry.
39 */
40HAL_BOOL
41ar5416ResetKeyCacheEntry(struct ath_hal *ah, uint16_t entry)
42{
43	struct ath_hal_5416 *ahp = AH5416(ah);
44
45	if (ar5212ResetKeyCacheEntry(ah, entry)) {
46		ahp->ah_keytype[entry] = keyType[HAL_CIPHER_CLR];
47		return AH_TRUE;
48	} else
49		return AH_FALSE;
50}
51
52/*
53 * Sets the contents of the specified key cache entry
54 * and any associated MIC entry.
55 */
56HAL_BOOL
57ar5416SetKeyCacheEntry(struct ath_hal *ah, uint16_t entry,
58                       const HAL_KEYVAL *k, const uint8_t *mac,
59                       int xorKey)
60{
61	struct ath_hal_5416 *ahp = AH5416(ah);
62
63	if (ar5212SetKeyCacheEntry(ah, entry, k, mac, xorKey)) {
64		ahp->ah_keytype[entry] = keyType[k->kv_type];
65		return AH_TRUE;
66	} else
67		return AH_FALSE;
68}
69#endif /* AH_SUPPORT_AR5416 */
70