xref: /netbsd-src/sys/dev/cgd_crypto.h (revision 946379e7b37692fc43f68eb0d1c10daa0a7f3b6c)
1 /* $NetBSD: cgd_crypto.h,v 1.8 2015/04/25 12:55:04 riastradh Exp $ */
2 
3 /*-
4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Roland C. Dowdeswell.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _DEV_CGD_CRYPTO_H_
33 #define	_DEV_CGD_CRYPTO_H_
34 
35 #ifdef _KERNEL
36 #define CGD_CIPHER_DECRYPT	1
37 #define CGD_CIPHER_ENCRYPT	2
38 
39 typedef void *(cfunc_init)(size_t, const void *, size_t *);
40 typedef void  (cfunc_destroy)(void *);
41 typedef void  (cfunc_cipher)(void *, struct uio *, struct uio *, const void *,
42 				int);
43 
44 struct cryptfuncs {
45 	const char	 *cf_name;	/* cipher name */
46 	cfunc_init	 *cf_init;	/* Initialisation function */
47 	cfunc_destroy	 *cf_destroy;	/* destruction function */
48 	cfunc_cipher	 *cf_cipher;	/* the cipher itself */
49 };
50 
51 const struct cryptfuncs	*cryptfuncs_find(const char *);
52 #endif /* _KERNEL */
53 
54 #endif /* _DEV_CGD_CRYPTO_H_ */
55