xref: /openbsd/sys/nfs/nfsdiskless.h (revision 07ea8d15)
1 /*	$OpenBSD: nfsdiskless.h,v 1.4 1996/04/17 04:50:37 mickey Exp $	*/
2 /*	$NetBSD: nfsdiskless.h,v 1.9 1996/02/18 11:54:00 fvdl Exp $	*/
3 
4 /*
5  * Copyright (c) 1991, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * This code is derived from software contributed to Berkeley by
9  * Rick Macklem at The University of Guelph.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *	This product includes software developed by the University of
22  *	California, Berkeley and its contributors.
23  * 4. Neither the name of the University nor the names of its contributors
24  *    may be used to endorse or promote products derived from this software
25  *    without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37  * SUCH DAMAGE.
38  *
39  *	@(#)nfsdiskless.h	8.2 (Berkeley) 3/30/95
40  */
41 
42 #ifndef _NFS_DISKLESS_H_
43 #define _NFS_DISKLESS_H_
44 
45 /*
46  * Structure that must be initialized for a diskless nfs client.
47  * This structure is used by nfs_mountroot() to set up the root and swap
48  * vnodes plus do a partial ifconfig(8) and route(8) so that the critical
49  * net interface can communicate with the server.
50  * Whether or not the swap area is nfs mounted is determined
51  * by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
52  * Currently only works for AF_INET protocols.
53  * NB: All fields are stored in net byte order to avoid hassles with
54  * client/server byte ordering differences.
55  */
56 struct nfs_dlmount {
57 	struct sockaddr_in ndm_saddr;  		/* Address of file server */
58 	char		ndm_host[MNAMELEN]; 	/* Host name for mount pt */
59 	u_char		ndm_fh[NFSX_V2FH]; 	/* The file's file handle */
60 };
61 struct nfs_diskless {
62 	struct sockaddr_in nd_boot;	/* Address of boot server */
63 	struct nfs_dlmount nd_root; 	/* Mount info for root */
64 	struct nfs_dlmount nd_swap; 	/* Mount info for swap */
65 };
66 
67 int nfs_boot_init __P((struct nfs_diskless *nd, struct proc *procp));
68 void nfs_boot_getfh __P((struct sockaddr_in *bpsin, char *key,
69 		struct nfs_dlmount *ndmntp));
70 #endif  _NFS_DISKLESS_H_
71 
72