xref: /netbsd-src/sys/nfs/nfsdiskless.h (revision 76dfffe33547c37f8bdd446e3e4ab0f3c16cea4b)
1 /*	$NetBSD: nfsdiskless.h,v 1.10 1996/10/20 13:13:28 fvdl Exp $	*/
2 
3 /*
4  * Copyright (c) 1991, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Rick Macklem at The University of Guelph.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  *
38  *	@(#)nfsdiskless.h	8.1 (Berkeley) 6/10/93
39  */
40 
41 /*
42  * Structure that must be initialized for a diskless nfs client.
43  * This structure is used by nfs_mountroot() to set up the root and swap
44  * vnodes plus do a partial ifconfig(8) and route(8) so that the critical
45  * net interface can communicate with the server.
46  * Whether or not the swap area is nfs mounted is determined
47  * by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
48  * Currently only works for AF_INET protocols.
49  * NB: All fields are stored in net byte order to avoid hassles with
50  * client/server byte ordering differences.
51  */
52 struct nfs_dlmount {
53         struct nfs_args ndm_args;
54 	struct sockaddr ndm_saddr;  		/* Address of file server */
55 	char		ndm_host[MNAMELEN]; 	/* Host name for mount pt */
56 	u_char		ndm_fh[NFSX_V3FHMAX]; 	/* The file's file handle */
57 };
58 struct nfs_diskless {
59 	struct sockaddr_in nd_boot;	/* Address of boot server */
60 	struct nfs_dlmount nd_root; 	/* Mount info for root */
61 	struct nfs_dlmount nd_swap; 	/* Mount info for swap */
62 };
63 
64 int nfs_boot_init __P((struct nfs_diskless *nd, struct proc *procp));
65 void nfs_boot_getfh __P((struct sockaddr_in *bpsin, char *key,
66 		struct nfs_dlmount *ndmntp));
67 
68