padlock.h revision 303975 
1214152Sed/*-
2214152Sed * Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3214152Sed * All rights reserved.
4214152Sed *
5222656Sed * Redistribution and use in source and binary forms, with or without
6222656Sed * modification, are permitted provided that the following conditions
7214152Sed * are met:
8214152Sed * 1. Redistributions of source code must retain the above copyright
9214152Sed *    notice, this list of conditions and the following disclaimer.
10214152Sed * 2. Redistributions in binary form must reproduce the above copyright
11214152Sed *    notice, this list of conditions and the following disclaimer in the
12214152Sed *    documentation and/or other materials provided with the distribution.
13214152Sed *
14214152Sed * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15239138Sandrew * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16239138Sandrew * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17263763Sdim * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18214152Sed * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19214152Sed * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20214152Sed * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21214152Sed * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22214152Sed * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23214152Sed * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24214152Sed * SUCH DAMAGE.
25214152Sed *
26214152Sed * $FreeBSD: releng/11.0/sys/crypto/via/padlock.h 230426 2012-01-21 17:45:27Z kib $
27214152Sed */
28214152Sed
29214152Sed#ifndef _PADLOCK_H_
30263763Sdim#define _PADLOCK_H_
31
32#include <opencrypto/cryptodev.h>
33#include <crypto/rijndael/rijndael.h>
34
35#if defined(__i386__)
36#include <machine/npx.h>
37#elif defined(__amd64__)
38#include <machine/fpu.h>
39#endif
40
41union padlock_cw {
42	uint64_t raw;
43	struct {
44		u_int round_count : 4;
45		u_int algorithm_type : 3;
46		u_int key_generation : 1;
47		u_int intermediate : 1;
48		u_int direction : 1;
49		u_int key_size : 2;
50		u_int filler0 : 20;
51		u_int filler1 : 32;
52		u_int filler2 : 32;
53		u_int filler3 : 32;
54	} __field;
55};
56#define	cw_round_count		__field.round_count
57#define	cw_algorithm_type	__field.algorithm_type
58#define	cw_key_generation	__field.key_generation
59#define	cw_intermediate		__field.intermediate
60#define	cw_direction		__field.direction
61#define	cw_key_size		__field.key_size
62#define	cw_filler0		__field.filler0
63#define	cw_filler1		__field.filler1
64#define	cw_filler2		__field.filler2
65#define	cw_filler3		__field.filler3
66
67struct padlock_session {
68	union padlock_cw ses_cw __aligned(16);
69	uint32_t	ses_ekey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16);	/* 128 bit aligned */
70	uint32_t	ses_dkey[4 * (RIJNDAEL_MAXNR + 1) + 4] __aligned(16);	/* 128 bit aligned */
71	uint8_t		ses_iv[16] __aligned(16);			/* 128 bit aligned */
72	struct auth_hash *ses_axf;
73	uint8_t		*ses_ictx;
74	uint8_t		*ses_octx;
75	int		ses_mlen;
76	int		ses_used;
77	uint32_t	ses_id;
78	TAILQ_ENTRY(padlock_session) ses_next;
79	struct fpu_kern_ctx *ses_fpu_ctx;
80};
81
82#define	PADLOCK_ALIGN(p)	(void *)(roundup2((uintptr_t)(p), 16))
83
84int	padlock_cipher_setup(struct padlock_session *ses,
85	    struct cryptoini *encini);
86int	padlock_cipher_process(struct padlock_session *ses,
87	    struct cryptodesc *enccrd, struct cryptop *crp);
88int	padlock_hash_setup(struct padlock_session *ses,
89	    struct cryptoini *macini);
90int	padlock_hash_process(struct padlock_session *ses,
91	    struct cryptodesc *maccrd, struct cryptop *crp);
92void	padlock_hash_free(struct padlock_session *ses);
93
94#endif	/* !_PADLOCK_H_ */
95