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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/crypto/via/padlock.h
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/*-

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 * Copyright (c) 2005-2006 Pawel Jakub Dawidek <[email protected]>

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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#ifndef _PADLOCK_H_

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#define _PADLOCK_H_

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#include <opencrypto/cryptodev.h>

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#include <crypto/rijndael/rijndael.h>

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union padlock_cw {

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	uint64_t raw;

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	struct {

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		u_int round_count : 4;

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		u_int algorithm_type : 3;

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		u_int key_generation : 1;

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		u_int intermediate : 1;

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		u_int direction : 1;

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		u_int key_size : 2;

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		u_int filler0 : 20;

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		u_int filler1 : 32;

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		u_int filler2 : 32;

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		u_int filler3 : 32;

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	} __field;

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};

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#define	cw_round_count		__field.round_count

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#define	cw_algorithm_type	__field.algorithm_type

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#define	cw_key_generation	__field.key_generation

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#define	cw_intermediate		__field.intermediate

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#define	cw_direction		__field.direction

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#define	cw_key_size		__field.key_size

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#define	cw_filler0		__field.filler0

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#define	cw_filler1		__field.filler1

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#define	cw_filler2		__field.filler2

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#define	cw_filler3		__field.filler3

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struct padlock_session {

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	union padlock_cw ses_cw __aligned(16);

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	uint32_t	ses_ekey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16);	/* 128 bit aligned */

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	uint32_t	ses_dkey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16);	/* 128 bit aligned */

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	const struct auth_hash *ses_axf;

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	uint8_t		*ses_ictx;

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	uint8_t		*ses_octx;

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	int		ses_mlen;

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};

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#define	PADLOCK_ALIGN(p)	(void *)(roundup2((uintptr_t)(p), 16))

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int	padlock_cipher_setup(struct padlock_session *ses,

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	    const struct crypto_session_params *csp);

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int	padlock_cipher_process(struct padlock_session *ses,

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	    struct cryptop *crp, const struct crypto_session_params *csp);

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bool	padlock_hash_check(const struct crypto_session_params *csp);

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int	padlock_hash_setup(struct padlock_session *ses,

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	    const struct crypto_session_params *csp);

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int	padlock_hash_process(struct padlock_session *ses,

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	    struct cryptop *crp, const struct crypto_session_params *csp);

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void	padlock_hash_free(struct padlock_session *ses);

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#endif	/* !_PADLOCK_H_ */

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