xref: /freebsd/sys/dev/ath/ath_hal/ar5416/ar5416_keycache.c (revision 02e9120893770924227138ba49df1edb3896112a)
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 #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 }
67