1/*
2 * Generic DES driver interface
3 * Keep this file hardware independent!
4 * Copyright (c) 2010, Oracle America, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
16 * * Neither the name of the "Oracle America, Inc." nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#ifndef _DES_H
35#define _DES_H
36
37#include <sys/types.h>
38
39#define DES_MAXLEN 65536 /* maximum # of bytes to encrypt */
40#define DES_QUICKLEN 16 /* maximum # of bytes to encrypt quickly */
41
42enum desdir
43 {
44 ENCRYPT, DECRYPT
45 };
46enum desmode
47 {
48 CBC, ECB
49 };
50
51/*
52 * parameters to ioctl call
53 */
54struct desparams
55 {
56 unsigned char des_key[8]; /* key (with low bit parity) */
57 enum desdir des_dir; /* direction */
58 enum desmode des_mode; /* mode */
59 unsigned char des_ivec[8]; /* input vector */
60 unsigned des_len; /* number of bytes to crypt */
61 union
62 {
63 unsigned char UDES_data[DES_QUICKLEN];
64 unsigned char *UDES_buf;
65 }
66 UDES;
67#define des_data UDES.UDES_data /* direct data here if quick */
68#define des_buf UDES.UDES_buf /* otherwise, pointer to data */
69 };
70
71#endif
72