BOOTP/TFTP boot strap program with NFS diskless support.
[unix-history] / sys / kern / vfs_conf.c
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1/*
2 * Copyright (c) 1989 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
600f7f07 33 * from: @(#)vfs_conf.c 7.3 (Berkeley) 6/28/90
fde1aeb2 34 * $Id: vfs_conf.c,v 1.3 1993/12/12 12:23:21 davidg Exp $
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35 */
36
37#include "param.h"
fde1aeb2 38#include "systm.h"
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39#include "mount.h"
40
41/*
42 * This specifies the filesystem used to mount the root.
43 * This specification should be done by /etc/config.
44 */
45extern int ufs_mountroot();
46int (*mountroot)() = ufs_mountroot;
47
48/*
49 * These define the root filesystem and device.
50 */
51struct mount *rootfs;
52struct vnode *rootdir;
53
54/*
55 * Set up the filesystem operations for vnodes.
56 * The types are defined in mount.h.
57 */
58extern struct vfsops ufs_vfsops;
59
60#ifdef NFS
61extern struct vfsops nfs_vfsops;
62#endif
63
64#ifdef MFS
65extern struct vfsops mfs_vfsops;
66#endif
67
68#ifdef PCFS
69extern struct vfsops pcfs_vfsops;
70#endif
71
72#ifdef ISOFS
73extern struct vfsops isofs_vfsops;
74#endif
75
317350b1 76extern struct vfsops procfs_vfsops;
317350b1 77
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78struct vfsops *vfssw[] = {
79 (struct vfsops *)0, /* 0 = MOUNT_NONE */
80 &ufs_vfsops, /* 1 = MOUNT_UFS */
81#ifdef NFS
82 &nfs_vfsops, /* 2 = MOUNT_NFS */
83#else
84 (struct vfsops *)0,
85#endif
86#ifdef MFS
87 &mfs_vfsops, /* 3 = MOUNT_MFS */
88#else
89 (struct vfsops *)0,
90#endif
91#ifdef PCFS
92 &pcfs_vfsops, /* 4 = MOUNT_MSDOS */
93#else
94 (struct vfsops *)0,
95#endif
96#ifdef ISOFS
97 &isofs_vfsops, /* 5 = MOUNT_ISOFS */
98#else
99 (struct vfsops *)0,
100#endif
317350b1 101 &procfs_vfsops, /* 6 = MOUNT_PROCFS */
15637ed4 102};