Line data Source code
1 : /* $OpenBSD: vfs_init.c,v 1.39 2017/12/11 05:27:40 deraadt Exp $ */
2 : /* $NetBSD: vfs_init.c,v 1.6 1996/02/09 19:00:58 christos Exp $ */
3 :
4 : /*
5 : * Copyright (c) 1989, 1993
6 : * The Regents of the University of California. All rights reserved.
7 : *
8 : * This code is derived from software contributed
9 : * to Berkeley by John Heidemann of the UCLA Ficus project.
10 : *
11 : * Source: * @(#)i405_init.c 2.10 92/04/27 UCLA Ficus project
12 : *
13 : * Redistribution and use in source and binary forms, with or without
14 : * modification, are permitted provided that the following conditions
15 : * are met:
16 : * 1. Redistributions of source code must retain the above copyright
17 : * notice, this list of conditions and the following disclaimer.
18 : * 2. Redistributions in binary form must reproduce the above copyright
19 : * notice, this list of conditions and the following disclaimer in the
20 : * documentation and/or other materials provided with the distribution.
21 : * 3. Neither the name of the University nor the names of its contributors
22 : * may be used to endorse or promote products derived from this software
23 : * without specific prior written permission.
24 : *
25 : * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 : * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 : * SUCH DAMAGE.
36 : *
37 : * @(#)vfs_init.c 8.3 (Berkeley) 1/4/94
38 : */
39 :
40 : #include <sys/param.h>
41 : #include <sys/mount.h>
42 : #include <sys/namei.h>
43 : #include <sys/vnode.h>
44 : #include <sys/pool.h>
45 :
46 : struct pool namei_pool;
47 :
48 : /* This defines the root filesystem. */
49 : struct vnode *rootvnode;
50 :
51 : /* Set up the filesystem operations for vnodes. */
52 : #ifdef FFS
53 : extern const struct vfsops ffs_vfsops;
54 : #endif
55 :
56 : #ifdef MFS
57 : extern const struct vfsops mfs_vfsops;
58 : #endif
59 :
60 : #ifdef MSDOSFS
61 : extern const struct vfsops msdosfs_vfsops;
62 : #endif
63 :
64 : #ifdef NFSCLIENT
65 : extern const struct vfsops nfs_vfsops;
66 : #endif
67 :
68 : #ifdef CD9660
69 : extern const struct vfsops cd9660_vfsops;
70 : #endif
71 :
72 : #ifdef EXT2FS
73 : extern const struct vfsops ext2fs_vfsops;
74 : #endif
75 :
76 : #ifdef NTFS
77 : extern const struct vfsops ntfs_vfsops;
78 : #endif
79 :
80 : #ifdef UDF
81 : extern const struct vfsops udf_vfsops;
82 : #endif
83 :
84 : #ifdef FUSE
85 : extern const struct vfsops fusefs_vfsops;
86 : #endif
87 :
88 : #ifdef TMPFS
89 : extern const struct vfsops tmpfs_vfsops;
90 : #endif
91 :
92 : /* Set up the filesystem operations for vnodes. */
93 : static struct vfsconf vfsconflist[] = {
94 : #ifdef FFS
95 : { &ffs_vfsops, MOUNT_FFS, 1, 0, MNT_LOCAL, NULL,
96 : sizeof(struct ufs_args) },
97 : #endif
98 :
99 : #ifdef MFS
100 : { &mfs_vfsops, MOUNT_MFS, 3, 0, MNT_LOCAL, NULL,
101 : sizeof(struct mfs_args) },
102 : #endif
103 :
104 : #ifdef EXT2FS
105 : { &ext2fs_vfsops, MOUNT_EXT2FS, 17, 0, MNT_LOCAL, NULL,
106 : sizeof(struct ufs_args) },
107 : #endif
108 :
109 : #ifdef CD9660
110 : { &cd9660_vfsops, MOUNT_CD9660, 14, 0, MNT_LOCAL, NULL,
111 : sizeof(struct iso_args) },
112 : #endif
113 :
114 : #ifdef MSDOSFS
115 : { &msdosfs_vfsops, MOUNT_MSDOS, 4, 0, MNT_LOCAL, NULL,
116 : sizeof(struct msdosfs_args) },
117 : #endif
118 :
119 : #ifdef NFSCLIENT
120 : { &nfs_vfsops, MOUNT_NFS, 2, 0, 0, NULL,
121 : sizeof(struct nfs_args) },
122 : #endif
123 :
124 : #ifdef NTFS
125 : { &ntfs_vfsops, MOUNT_NTFS, 6, 0, MNT_LOCAL, NULL,
126 : sizeof(struct ntfs_args) },
127 : #endif
128 :
129 : #ifdef UDF
130 : { &udf_vfsops, MOUNT_UDF, 13, 0, MNT_LOCAL, NULL,
131 : sizeof(struct iso_args) },
132 : #endif
133 :
134 : #ifdef FUSE
135 : { &fusefs_vfsops, MOUNT_FUSEFS, 18, 0, MNT_LOCAL, NULL,
136 : sizeof(struct fusefs_args) },
137 : #endif
138 :
139 : #ifdef TMPFS
140 : { &tmpfs_vfsops, MOUNT_TMPFS, 19, 0, MNT_LOCAL, NULL,
141 : sizeof(struct tmpfs_args) },
142 : #endif
143 : };
144 :
145 :
146 : /*
147 : * Initially the size of the list, vfsinit will set maxvfsconf
148 : * to the highest defined type number.
149 : */
150 : int maxvfsconf = sizeof(vfsconflist) / sizeof(struct vfsconf);
151 : struct vfsconf *vfsconf = vfsconflist;
152 :
153 : /* Initialize the vnode structures and initialize each file system type. */
154 : void
155 0 : vfsinit(void)
156 : {
157 : int i;
158 : struct vfsconf *vfsconflist;
159 : int vfsconflistlen;
160 :
161 0 : pool_init(&namei_pool, MAXPATHLEN, 0, IPL_NONE, PR_WAITOK, "namei",
162 : NULL);
163 :
164 : /* Initialize the vnode table. */
165 0 : vntblinit();
166 :
167 : /* Initialize the vnode name cache. */
168 0 : nchinit();
169 :
170 : /*
171 : * Stop using vfsconf and maxvfsconf as a temporary storage,
172 : * set them to their correct values now.
173 : */
174 0 : vfsconflist = vfsconf;
175 0 : vfsconflistlen = maxvfsconf;
176 0 : vfsconf = NULL;
177 0 : maxvfsconf = 0;
178 :
179 0 : for (i = 0; i < vfsconflistlen; i++)
180 0 : vfs_register(&vfsconflist[i]);
181 0 : }
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