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/*
* Copyright (C) 2008, Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
* Vinodh Gopal <vinodh.gopal@intel.com>
* Kahraman Akdemir
*
* Ported x86_64 version to x86:
* Author: Mathias Krause <minipli@googlemail.com>
*
* Modified for use in Samba by Justin Maggard <jmaggard@netgear.com>
* and Jeremy Allison <jra@samba.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef LIB_CRYPTO_AESNI_H
#define LIB_CRYPTO_AESNI_H 1
#if defined(HAVE_AESNI_INTEL)
#define AES_MAX_KEYLENGTH (15 * 16)
#define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(uint32_t))
/*
* Please ensure that the first two fields are 16-byte aligned
* relative to the start of the structure, i.e., don't move them!
*/
struct crypto_aes_ctx {
uint32_t key_enc[AES_MAX_KEYLENGTH_U32];
uint32_t key_dec[AES_MAX_KEYLENGTH_U32];
uint32_t key_length;
};
struct crypto_aesni_ctx {
uint8_t _acc_ctx[sizeof(struct crypto_aes_ctx) + 16];
struct crypto_aes_ctx *acc_ctx;
};
/*
* These next 4 functions are actually implemented
* in the assembly language file:
* third_party/aesni-intel/aesni-intel_asm.c
*/
int aesni_set_key(struct crypto_aes_ctx *ctx,
const uint8_t *in_key,
unsigned int key_len);
void aesni_enc(struct crypto_aes_ctx *ctx, uint8_t *dst, const uint8_t *src);
void aesni_dec(struct crypto_aes_ctx *ctx, uint8_t *dst, const uint8_t *src);
#else /* #if defined(HAVE_AESNI_INTEL) */
/*
* We need a dummy definition of struct crypto_aesni_ctx to allow compiles.
*/
struct crypto_aesni_ctx {
int dummy;
};
#endif /* #if defined(HAVE_AESNI_INTEL) */
#endif /* LIB_CRYPTO_AESNI_H */
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