1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright 2003-2004, Instant802 Networks, Inc.
4*4882a593Smuzhiyun * Copyright 2006, Devicescape Software, Inc.
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #ifndef AES_CCM_H
8*4882a593Smuzhiyun #define AES_CCM_H
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include "aead_api.h"
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #define CCM_AAD_LEN 32
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun static inline struct crypto_aead *
ieee80211_aes_key_setup_encrypt(const u8 key[],size_t key_len,size_t mic_len)15*4882a593Smuzhiyun ieee80211_aes_key_setup_encrypt(const u8 key[], size_t key_len, size_t mic_len)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun return aead_key_setup_encrypt("ccm(aes)", key, key_len, mic_len);
18*4882a593Smuzhiyun }
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun static inline int
ieee80211_aes_ccm_encrypt(struct crypto_aead * tfm,u8 * b_0,u8 * aad,u8 * data,size_t data_len,u8 * mic)21*4882a593Smuzhiyun ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm,
22*4882a593Smuzhiyun u8 *b_0, u8 *aad, u8 *data,
23*4882a593Smuzhiyun size_t data_len, u8 *mic)
24*4882a593Smuzhiyun {
25*4882a593Smuzhiyun return aead_encrypt(tfm, b_0, aad + 2,
26*4882a593Smuzhiyun be16_to_cpup((__be16 *)aad),
27*4882a593Smuzhiyun data, data_len, mic);
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun static inline int
ieee80211_aes_ccm_decrypt(struct crypto_aead * tfm,u8 * b_0,u8 * aad,u8 * data,size_t data_len,u8 * mic)31*4882a593Smuzhiyun ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm,
32*4882a593Smuzhiyun u8 *b_0, u8 *aad, u8 *data,
33*4882a593Smuzhiyun size_t data_len, u8 *mic)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun return aead_decrypt(tfm, b_0, aad + 2,
36*4882a593Smuzhiyun be16_to_cpup((__be16 *)aad),
37*4882a593Smuzhiyun data, data_len, mic);
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun
ieee80211_aes_key_free(struct crypto_aead * tfm)40*4882a593Smuzhiyun static inline void ieee80211_aes_key_free(struct crypto_aead *tfm)
41*4882a593Smuzhiyun {
42*4882a593Smuzhiyun return aead_key_free(tfm);
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun #endif /* AES_CCM_H */
46