xref: /titanic_51/usr/src/uts/common/rpc/des_crypt.h (revision 148434217c040ea38dc844384f6ba68d9b325906)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
27 /* All Rights Reserved */
28 /*
29  * Portions of this source code were derived from Berkeley
30  * 4.3 BSD under license from the Regents of the University of
31  * California.
32  */
33 
34 /*
35  * des_crypt.h, des library routine interface
36  */
37 
38 #ifndef _DES_DES_CRYPT_H
39 #define	_DES_DES_CRYPT_H
40 
41 #pragma ident	"%Z%%M%	%I%	%E% SMI"
42 
43 #include <sys/types.h>
44 
45 #ifdef __cplusplus
46 extern "C" {
47 #endif
48 
49 #define	DES_MAXDATA 8192	/* max bytes encrypted in one call */
50 #define	DES_DIRMASK (1 << 0)
51 #define	DES_ENCRYPT (0 * DES_DIRMASK)	/* Encrypt */
52 #define	DES_DECRYPT (1 * DES_DIRMASK)	/* Decrypt */
53 
54 
55 #define	DES_DEVMASK (1 << 1)
56 #define	DES_HW (0 * DES_DEVMASK)	/* Use hardware device */
57 #define	DES_SW (1 * DES_DEVMASK)	/* Use software device */
58 
59 
60 #define	DESERR_NONE 0		/* succeeded */
61 #define	DESERR_NOHWDEVICE 1	/* succeeded, but hw device not available */
62 #define	DESERR_HWERROR 2	/* failed, hardware/driver error */
63 #define	DESERR_BADPARAM 3	/* failed, bad parameter to call */
64 
65 #define	DES_FAILED(err) \
66 	((err) > DESERR_NOHWDEVICE)
67 
68 /*
69  * cbc_crypt()
70  * ecb_crypt()
71  *
72  * Encrypt (or decrypt) len bytes of a buffer buf.
73  * The length must be a multiple of eight.
74  * The key should have odd parity in the low bit of each byte.
75  * ivec is the input vector, and is updated to the new one (cbc only).
76  * The mode is created by oring together the appropriate parameters.
77  * DESERR_NOHWDEVICE is returned if DES_HW was specified but
78  * there was no hardware to do it on (the data will still be
79  * encrypted though, in software).
80  */
81 
82 
83 /*
84  * Cipher Block Chaining mode
85  */
86 #ifdef __STDC__
87 int cbc_crypt(char *key, char *buf, size_t len, unsigned int mode, char *ivec);
88 #else
89 int cbc_crypt();
90 #endif
91 
92 
93 /*
94  * Electronic Code Book mode
95  */
96 #ifdef __STDC__
97 int ecb_crypt(char *key, char *buf, size_t len, unsigned int mode);
98 #else
99 int ecb_crypt();
100 #endif
101 
102 
103 #ifndef _KERNEL
104 /*
105  * Set des parity for a key.
106  * DES parity is odd and in the low bit of each byte
107  */
108 #ifdef __STDC__
109 void des_setparity(char *key);
110 #else
111 void des_setparity();
112 #endif
113 #endif	/* _KERNEL */
114 
115 #ifdef __cplusplus
116 }
117 #endif
118 
119 #endif	/* _DES_DES_CRYPT_H */
120