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nfsdiskless.h revision 1.6 
      1 /*
      2  * Copyright (c) 1991, 1993
      3  *	The Regents of the University of California.  All rights reserved.
      4  *
      5  * This code is derived from software contributed to Berkeley by
      6  * Rick Macklem at The University of Guelph.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by the University of
     19  *	California, Berkeley and its contributors.
     20  * 4. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  *	from: @(#)nfsdiskless.h	8.1 (Berkeley) 6/10/93
     37  *	$Id: nfsdiskless.h,v 1.6 1994/06/13 15:29:04 gwr Exp $
     38  */
     39 
     40 /*
     41  * Structure that must be initialized for a diskless nfs client.
     42  * This structure is used by nfs_mountroot() to set up the root and swap
     43  * vnodes plus do a partial ifconfig(8) and route(8) so that the critical
     44  * net interface can communicate with the server.
     45  * Whether or not the swap area is nfs mounted is determined
     46  * by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
     47  * Currently only works for AF_INET protocols.
     48  * NB: All fields are stored in net byte order to avoid hassles with
     49  * client/server byte ordering differences.
     50  */
     51 struct nfs_dlmount {
     52 	struct sockaddr_in ndm_saddr;  		/* Address of file server */
     53 	char		ndm_host[MNAMELEN]; 	/* Host name for mount pt */
     54 	u_char		ndm_fh[NFS_FHSIZE]; 	/* The file's file handle */
     55 };
     56 struct nfs_diskless {
     57 	struct nfs_dlmount nd_root; 	/* Mount info for root */
     58 	struct nfs_dlmount nd_swap; 	/* Mount info for swap */
     59 };
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