reactos/dll/3rdparty/libtirpc/tirpc/rpcsvc/crypt.x

   1 /*
   2  * Copyright (c) 1996
   3  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by Bill Paul.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #ifndef RPC_HDR
  34 %#include <sys/cdefs.h>
  35 %__FBSDID("$FreeBSD: src/include/rpcsvc/crypt.x,v 1.5 2003/05/04 02:51:42 obrien Exp $");
  36 #endif
  37
  38 /*
  39  * This protocol definition exists because of the U.S. government and
  40  * its stupid export laws. We can't export DES code from the United
  41  * States to other countries (even though the code already exists
  42  * outside the U.S. -- go figure that one out) but we need to make
  43  * Secure RPC work. The normal way around this is to break the DES
  44  * code out into a shared library; we can then provide a dummy lib
  45  * in the base OS and provide the real lib in the secure dist, which
  46  * the user can install later. But we need Secure RPC for NIS+, and
  47  * there are several system programs that use NIS+ which are statically
  48  * linked. We would have to provide replacements for these programs
  49  * in the secure dist, but there are a lot, and this is a pain. The
  50  * shared lib trick won't work for these programs, and we can't change
  51  * them once they're compiled.
  52  *
  53  * One solution for this problem is to do the DES encryption as a system
  54  * call; no programs need to be changed and we can even supply the DES
  55  * support as an LKM. But this bloats the kernel. Maybe if we have
  56  * Secure NFS one day this will be worth it, but for now we should keep
  57  * this mess in user space.
  58  *
  59  * So we have this second solution: we provide a server that does the
  60  * DES encryption for us. In this case, the server is keyserv (we need
  61  * it to make Secure RPC work anyway) and we use this protocol to ship
  62  * the data back and forth between keyserv and the application.
  63  */
  64
  65 enum des_dir { ENCRYPT_DES, DECRYPT_DES };
  66 enum des_mode { CBC_DES, ECB_DES };
  67
  68 struct desargs {
  69         u_char des_key[8];      /* key (with low bit parity) */
  70         des_dir des_dir;        /* direction */
  71         des_mode des_mode;      /* mode */
  72         u_char des_ivec[8];     /* input vector */
  73         opaque desbuf<>;
  74 };
  75
  76 struct desresp {
  77         opaque desbuf<>;
  78         u_char des_ivec[8];
  79         int stat;
  80 };
  81
  82 program CRYPT_PROG {
  83         version CRYPT_VERS {
  84                 desresp
  85                 DES_CRYPT(desargs) = 1;
  86         } = 1;
  87 } = 600100029;