mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 02:30:34 +02:00
4133da7306
Currently, the aes_ccm.c and aes_gcm.c are almost line by line copy of each other. This patch reduce code redundancy by moving the code in these two files to crypto/aead_api.c to make it a higher level aead api. The file aes_ccm.c and aes_gcm.c are removed and all the functions there are now implemented in their headers using the newly added aead api. Signed-off-by: Xiang Gao <qasdfgtyuiop@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/*
|
|
* Copyright 2014-2015, Qualcomm Atheros, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef AES_GCM_H
|
|
#define AES_GCM_H
|
|
|
|
#include "aead_api.h"
|
|
|
|
#define GCM_AAD_LEN 32
|
|
|
|
static inline int ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm,
|
|
u8 *j_0, u8 *aad, u8 *data,
|
|
size_t data_len, u8 *mic)
|
|
{
|
|
return aead_encrypt(tfm, j_0, aad + 2,
|
|
be16_to_cpup((__be16 *)aad),
|
|
data, data_len, mic);
|
|
}
|
|
|
|
static inline int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm,
|
|
u8 *j_0, u8 *aad, u8 *data,
|
|
size_t data_len, u8 *mic)
|
|
{
|
|
return aead_decrypt(tfm, j_0, aad + 2,
|
|
be16_to_cpup((__be16 *)aad),
|
|
data, data_len, mic);
|
|
}
|
|
|
|
static inline struct crypto_aead *
|
|
ieee80211_aes_gcm_key_setup_encrypt(const u8 key[], size_t key_len)
|
|
{
|
|
return aead_key_setup_encrypt("gcm(aes)", key,
|
|
key_len, IEEE80211_GCMP_MIC_LEN);
|
|
}
|
|
|
|
static inline void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm)
|
|
{
|
|
return aead_key_free(tfm);
|
|
}
|
|
|
|
#endif /* AES_GCM_H */
|