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[/] [or1k/] [trunk/] [rtems-20020807/] [cpukit/] [librpc/] [include/] [rpcsvc/] [crypt.x] - Blame information for rev 1765

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1 1026 ivang
/*
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 * Copyright (c) 1996
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 *      Bill Paul .  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *      This product includes software developed by Bill Paul.
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 * 4. Neither the name of the author nor the names of any co-contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 * $FreeBSD: src/include/rpcsvc/crypt.x,v 1.3 1999/08/27 23:45:08 peter Exp $
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 */
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#ifndef RPC_HDR
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%#ifndef lint
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%static const char rcsid[] =
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%  "$FreeBSD: src/include/rpcsvc/crypt.x,v 1.3 1999/08/27 23:45:08 peter Exp $";
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%#endif
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#endif
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/*
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 * This protocol definition exists because of the U.S. government and
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 * its stupid export laws. We can't export DES code from the United
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 * States to other countries (even though the code already exists
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 * outside the U.S. -- go figure that one out) but we need to make
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 * Secure RPC work. The normal way around this is to break the DES
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 * code out into a shared library; we can then provide a dummy lib
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 * in the base OS and provide the real lib in the secure dist, which
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 * the user can install later. But we need Secure RPC for NIS+, and
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 * there are several system programs that use NIS+ which are statically
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 * linked. We would have to provide replacements for these programs
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 * in the secure dist, but there are a lot, and this is a pain. The
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 * shared lib trick won't work for these programs, and we can't change
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 * them once they're compiled.
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 *
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 * One solution for this problem is to do the DES encryption as a system
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 * call; no programs need to be changed and we can even supply the DES
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 * support as an LKM. But this bloats the kernel. Maybe if we have
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 * Secure NFS one day this will be worth it, but for now we should keep
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 * this mess in user space.
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 *
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 * So we have this second solution: we provide a server that does the
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 * DES encryption for us. In this case, the server is keyserv (we need
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 * it to make Secure RPC work anyway) and we use this protocol to ship
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 * the data back and forth between keyserv and the application.
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 */
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enum des_dir { ENCRYPT_DES, DECRYPT_DES };
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enum des_mode { CBC_DES, ECB_DES };
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struct desargs {
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        u_char des_key[8];      /* key (with low bit parity) */
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        des_dir des_dir;        /* direction */
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        des_mode des_mode;      /* mode */
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        u_char des_ivec[8];     /* input vector */
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        opaque desbuf<>;
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};
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struct desresp {
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        opaque desbuf<>;
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        u_char des_ivec[8];
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        int stat;
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};
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program CRYPT_PROG {
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        version CRYPT_VERS {
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                desresp
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                DES_CRYPT(desargs) = 1;
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        } = 1;
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} = 600100029;

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