sunrpc/rpc/rpc_des.h

   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
  42 enum desdir
  43   {
  44     ENCRYPT, DECRYPT
  45   };
  46 enum desmode
  47   {
  48     CBC, ECB
  49   };
  50
  51 /*
  52  * parameters to ioctl call
  53  */
  54 struct desparams
  55   {
  56     u_char des_key[8];          /* key (with low bit parity) */
  57     enum desdir des_dir;        /* direction */
  58     enum desmode des_mode;      /* mode */
  59     u_char des_ivec[8];         /* input vector */
  60     unsigned des_len;           /* number of bytes to crypt */
  61     union
  62       {
  63         u_char UDES_data[DES_QUICKLEN];
  64         u_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