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/*
* Copyright (c) 1995, 1996
* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: ypxfrd.x,v 1.8 1996/06/03 20:17:04 wpaul Exp $
*/
/*
* This protocol definition file describes a file transfer
* system used to very quickly move NIS maps from one host to
* another. This is similar to what Sun does with their ypxfrd
* protocol, but it must be stressed that this protocol is _NOT_
* compatible with Sun's. There are a couple of reasons for this:
*
* 1) Sun's protocol is proprietary. The protocol definition is
* not freely available in any of the SunRPC source distributions,
* even though the NIS v2 protocol is.
*
* 2) The idea here is to transfer entire raw files rather than
* sending just the records. Sun uses ndbm for its NIS map files,
* while FreeBSD uses Berkeley DB. Both are hash databases, but the
* formats are incompatible, making it impossible for them to
* use each others' files. Even if FreeBSD adopted ndbm for its
* database format, FreeBSD/i386 is a little-endian OS and
* SunOS/SPARC is big-endian; ndbm is byte-order sensitive and
* not very smart about it, which means an attempt to read a
* database on a little-endian box that was created on a big-endian
* box (or vice-versa) can cause the ndbm code to eat itself.
* Luckily, Berkeley DB is able to deal with this situation in
* a more graceful manner.
*
* While the protocol is incompatible, the idea is the same: we just open
* up a TCP pipe to the client and transfer the raw map database
* from the master server to the slave. This is many times faster than
* the standard yppush/ypxfr transfer method since it saves us from
* having to recreate the map databases via the DB library each time.
* For example: creating a passwd database with 30,000 entries with yp_mkdb
* can take a couple of minutes, but to just copy the file takes only a few
* seconds.
*/
#ifndef RPC_HDR
%#ifndef lint
%static const char rcsid[] = "$Id: ypxfrd.x,v 1.8 1996/06/03 20:17:04 wpaul Exp $";
%#endif /* not lint */
#endif
/* XXX cribbed from yp.x */
const _YPMAXRECORD = 1024;
const _YPMAXDOMAIN = 64;
const _YPMAXMAP = 64;
const _YPMAXPEER = 64;
/* Suggested default -- not necesarrily the one used. */
const YPXFRBLOCK = 32767;
enum xfrstat {
XFR_REQUEST_OK = 1, /* Transfer request granted */
XFR_DENIED = 2, /* Transfer request denied */
XFR_NOFILE = 3, /* Requested map file doesn't exist */
XFR_ACCESS = 4, /* File exists, but I couldn't access it */
XFR_BADDB = 5, /* File is not a hash database */
XFR_READ_OK = 6, /* Block read successfully */
XFR_READ_ERR = 7, /* Read error during transfer */
XFR_DONE = 8 /* Transfer completed */
};
typedef string xfrdomain<_YPMAXDOMAIN>;
typedef string xfrmap<_YPMAXMAP>;
/* Ask the remote ypxfrd for a map using this structure */
struct ypxfr_mapname {
xfrmap xfrmap;
xfrdomain xfrdomain;
};
/* Read response using this structure. */
union xfr switch (bool ok) {
case TRUE:
opaque xfrblock_buf<>;
case FALSE:
enum xfrstat xfrstat;
};
program YPXFRD_FREEBSD_PROG {
version YPXFRD_FREEBSD_VERS {
union xfr
YPXFRD_GETMAP(ypxfr_mapname) = 1;
} = 1;
} = 600100069; /* 100069 + 60000000 -- 100069 is the Sun ypxfrd prog number */
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