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cgd_crypto.h revision 1.10 
      1 /* $NetBSD: cgd_crypto.h,v 1.10 2017/01/02 14:28:29 alnsn 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 #define CGD_AES_BLOCK_SIZE	16
     39 #define CGD_3DES_BLOCK_SIZE	8
     40 #define CGD_BF_BLOCK_SIZE	8
     41 
     42 typedef void *(cfunc_init)(size_t, const void *, size_t *);
     43 typedef void  (cfunc_destroy)(void *);
     44 typedef void  (cfunc_cipher)(void *, struct uio *, struct uio *, const void *,
     45 				int);
     46 typedef void  (cfunc_cipher_prep)(void *, char *, const char *, size_t, int);
     47 
     48 struct cryptfuncs {
     49 	const char		 *cf_name;	/* cipher name */
     50 	cfunc_init		 *cf_init;	/* Initialisation function */
     51 	cfunc_destroy		 *cf_destroy;	/* destruction function */
     52 	cfunc_cipher		 *cf_cipher;	/* the cipher itself */
     53 	cfunc_cipher_prep	 *cf_cipher_prep; /* prepare to cipher */
     54 };
     55 
     56 const struct cryptfuncs	*cryptfuncs_find(const char *);
     57 #endif /* _KERNEL */
     58 
     59 #endif /* _DEV_CGD_CRYPTO_H_ */
     60