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/*
* 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 */
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