xref: /freebsd/sys/dev/ath/ath_hal/ar5416/ar5416_keycache.c (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c)
1 /*-
2  * SPDX-License-Identifier: ISC
3  *
4  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
5  * Copyright (c) 2002-2008 Atheros Communications, Inc.
6  *
7  * Permission to use, copy, modify, and/or distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  *
19  * $FreeBSD$
20  */
21 #include "opt_ah.h"
22 
23 #include "ah.h"
24 #include "ah_internal.h"
25 
26 #include "ar5416/ar5416.h"
27 
28 static 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  */
40 HAL_BOOL
41 ar5416ResetKeyCacheEntry(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  */
56 HAL_BOOL
57 ar5416SetKeyCacheEntry(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