linux/net/mac80211/aes_gcm.h
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  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

  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 #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

44 lines
1013 B
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright 2014-2015, Qualcomm Atheros, Inc.
*/
#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 */