1 /* SPDX-License-Identifier: GPL-2.0-only */ <<
2 /* 1 /*
3 * Copyright 2003-2004, Instant802 Networks, I 2 * Copyright 2003-2004, Instant802 Networks, Inc.
4 * Copyright 2006, Devicescape Software, Inc. 3 * Copyright 2006, Devicescape Software, Inc.
>> 4 *
>> 5 * This program is free software; you can redistribute it and/or modify
>> 6 * it under the terms of the GNU General Public License version 2 as
>> 7 * published by the Free Software Foundation.
5 */ 8 */
6 9
7 #ifndef AES_CCM_H 10 #ifndef AES_CCM_H
8 #define AES_CCM_H 11 #define AES_CCM_H
9 12
10 #include "aead_api.h" 13 #include "aead_api.h"
11 14
12 #define CCM_AAD_LEN 32 15 #define CCM_AAD_LEN 32
13 16
14 static inline struct crypto_aead * 17 static inline struct crypto_aead *
15 ieee80211_aes_key_setup_encrypt(const u8 key[] 18 ieee80211_aes_key_setup_encrypt(const u8 key[], size_t key_len, size_t mic_len)
16 { 19 {
17 return aead_key_setup_encrypt("ccm(aes 20 return aead_key_setup_encrypt("ccm(aes)", key, key_len, mic_len);
18 } 21 }
19 22
20 static inline int 23 static inline int
21 ieee80211_aes_ccm_encrypt(struct crypto_aead * 24 ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm,
22 u8 *b_0, u8 *aad, u8 25 u8 *b_0, u8 *aad, u8 *data,
23 size_t data_len, u8 26 size_t data_len, u8 *mic)
24 { 27 {
25 return aead_encrypt(tfm, b_0, aad + 2, 28 return aead_encrypt(tfm, b_0, aad + 2,
26 be16_to_cpup((__be 29 be16_to_cpup((__be16 *)aad),
27 data, data_len, mi 30 data, data_len, mic);
28 } 31 }
29 32
30 static inline int 33 static inline int
31 ieee80211_aes_ccm_decrypt(struct crypto_aead * 34 ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm,
32 u8 *b_0, u8 *aad, u8 35 u8 *b_0, u8 *aad, u8 *data,
33 size_t data_len, u8 36 size_t data_len, u8 *mic)
34 { 37 {
35 return aead_decrypt(tfm, b_0, aad + 2, 38 return aead_decrypt(tfm, b_0, aad + 2,
36 be16_to_cpup((__be 39 be16_to_cpup((__be16 *)aad),
37 data, data_len, mi 40 data, data_len, mic);
38 } 41 }
39 42
40 static inline void ieee80211_aes_key_free(stru 43 static inline void ieee80211_aes_key_free(struct crypto_aead *tfm)
41 { 44 {
42 return aead_key_free(tfm); 45 return aead_key_free(tfm);
43 } 46 }
44 47
45 #endif /* AES_CCM_H */ 48 #endif /* AES_CCM_H */
46 49
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