/* 
 * Copyright (c) 2010, Intel Corporation
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright notice, 
 *       this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright notice, 
 *       this list of conditions and the following disclaimer in the documentation 
 *       and/or other materials provided with the distribution.
 *     * Neither the name of Intel Corporation nor the names of its contributors 
 *       may be used to endorse or promote products derived from this software 
 *       without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
 * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
*/

#ifndef _INTEL_AES_ASM_INTERFACE_H__
#define _INTEL_AES_ASM_INTERFACE_H__


#include "iaesni.h"



//structure to pass aes processing data to asm level functions
typedef struct _sAesData
{
	_AES_IN		UCHAR	*in_block;
	_AES_OUT	UCHAR	*out_block;
	_AES_IN		UCHAR	*expanded_key;		
	_AES_INOUT	UCHAR	*iv;					// for CBC mode
	_AES_IN		size_t	num_blocks;
} sAesData;

#if (__cplusplus)
extern "C"
{
#endif
#if 0
#define MYSTDCALL __stdcall
#else
#define MYSTDCALL 
#endif

#if defined __linux__ || defined __APPLE__
#ifndef __LP64__
#define iEncExpandKey256 _iEncExpandKey256
#define iEncExpandKey192 _iEncExpandKey192
#define iEncExpandKey128 _iEncExpandKey128
#define iDecExpandKey256 _iDecExpandKey256
#define iDecExpandKey192 _iDecExpandKey192
#define iDecExpandKey128 _iDecExpandKey128
#define iEnc128 _iEnc128
#define iDec128 _iDec128
#define iEnc256 _iEnc256
#define iDec256 _iDec256
#define iEnc192 _iEnc192
#define iDec192 _iDec192
#define iEnc128_CBC _iEnc128_CBC
#define iDec128_CBC _iDec128_CBC
#define iEnc256_CBC _iEnc256_CBC
#define iDec256_CBC _iDec256_CBC
#define iEnc192_CBC _iEnc192_CBC
#define iDec192_CBC _iDec192_CBC
#define iEnc128_CTR _iEnc128_CTR
#define iEnc192_CTR _iEnc192_CTR
#define iEnc256_CTR _iEnc256_CTR
#define do_rdtsc    _do_rdtsc
#endif // lp64
#endif // linux
	// prepearing the different key rounds, for enc/dec in asm
	// expnaded key should be 16-byte aligned
	// expanded key should have enough space to hold all key rounds (16 bytes per round) - 256 bytes would cover all cases (AES256 has 14 rounds + 1 xor)
	void MYSTDCALL iEncExpandKey256(_AES_IN UCHAR *key, _AES_OUT UCHAR *expanded_key);
	void MYSTDCALL iEncExpandKey192(_AES_IN UCHAR *key, _AES_OUT UCHAR *expanded_key);
	void MYSTDCALL iEncExpandKey128(_AES_IN UCHAR *key, _AES_OUT UCHAR *expanded_key);

	void MYSTDCALL iDecExpandKey256(UCHAR *key, _AES_OUT UCHAR *expanded_key);
	void MYSTDCALL iDecExpandKey192(UCHAR *key, _AES_OUT UCHAR *expanded_key);
	void MYSTDCALL iDecExpandKey128(UCHAR *key, _AES_OUT UCHAR *expanded_key);


	//enc/dec asm functions
	void MYSTDCALL iEnc128(sAesData *data);
	void MYSTDCALL iDec128(sAesData *data);
	void MYSTDCALL iEnc256(sAesData *data);
	void MYSTDCALL iDec256(sAesData *data);
	void MYSTDCALL iEnc192(sAesData *data);
	void MYSTDCALL iDec192(sAesData *data);

	void MYSTDCALL iEnc128_CBC(sAesData *data);
	void MYSTDCALL iDec128_CBC(sAesData *data);
	void MYSTDCALL iEnc256_CBC(sAesData *data);
	void MYSTDCALL iDec256_CBC(sAesData *data);
	void MYSTDCALL iEnc192_CBC(sAesData *data);
	void MYSTDCALL iDec192_CBC(sAesData *data);


	void MYSTDCALL iEnc128_CTR(sAesData *data);
	void MYSTDCALL iEnc256_CTR(sAesData *data);
	void MYSTDCALL iEnc192_CTR(sAesData *data);

	// rdtsc function
	unsigned long long do_rdtsc(void);


#if (__cplusplus)
}
#endif


#endif