1 | /* |
2 | * Copyright (c) 2000-2014 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ |
29 | /* |
30 | * Copyright (c) 1989, 1993, 1995 |
31 | * The Regents of the University of California. All rights reserved. |
32 | * |
33 | * Redistribution and use in source and binary forms, with or without |
34 | * modification, are permitted provided that the following conditions |
35 | * are met: |
36 | * 1. Redistributions of source code must retain the above copyright |
37 | * notice, this list of conditions and the following disclaimer. |
38 | * 2. Redistributions in binary form must reproduce the above copyright |
39 | * notice, this list of conditions and the following disclaimer in the |
40 | * documentation and/or other materials provided with the distribution. |
41 | * 3. All advertising materials mentioning features or use of this software |
42 | * must display the following acknowledgement: |
43 | * This product includes software developed by the University of |
44 | * California, Berkeley and its contributors. |
45 | * 4. Neither the name of the University nor the names of its contributors |
46 | * may be used to endorse or promote products derived from this software |
47 | * without specific prior written permission. |
48 | * |
49 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
50 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
51 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
52 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
53 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
54 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
55 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
56 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
57 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
58 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
59 | * SUCH DAMAGE. |
60 | * |
61 | * @(#)vfs_conf.c 8.11 (Berkeley) 5/10/95 |
62 | */ |
63 | /* |
64 | * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce |
65 | * support for mandatory and extensible security protections. This notice |
66 | * is included in support of clause 2.2 (b) of the Apple Public License, |
67 | * Version 2.0. |
68 | */ |
69 | |
70 | #include <sys/param.h> |
71 | #include <sys/systm.h> |
72 | #include <sys/mount_internal.h> |
73 | #include <sys/vnode_internal.h> |
74 | |
75 | /* |
76 | * These define the root filesystem, device, and root filesystem type. |
77 | */ |
78 | struct mount *rootfs; |
79 | struct vnode *rootvnode; |
80 | |
81 | #ifdef CONFIG_IMGSRC_ACCESS |
82 | struct vnode *imgsrc_rootvnodes[MAX_IMAGEBOOT_NESTING]; /* [0] -> source volume, [1] -> first disk image */ |
83 | #endif /* CONFIG_IMGSRC_ACCESS */ |
84 | |
85 | int (*mountroot)(void) = NULL; |
86 | |
87 | /* |
88 | * Set up the initial array of known filesystem types. |
89 | */ |
90 | extern struct vfsops mfs_vfsops; |
91 | extern int mfs_mountroot(mount_t, vnode_t, vfs_context_t); /* dead */ |
92 | extern struct vfsops nfs_vfsops; |
93 | extern int nfs_mountroot(void); |
94 | extern struct vfsops afs_vfsops; |
95 | extern struct vfsops null_vfsops; |
96 | extern struct vfsops devfs_vfsops; |
97 | extern struct vfsops routefs_vfsops; |
98 | extern struct vfsops nullfs_vfsops; |
99 | |
100 | #if MOCKFS |
101 | extern struct vfsops mockfs_vfsops; |
102 | extern int mockfs_mountroot(mount_t, vnode_t, vfs_context_t); |
103 | #endif /* MOCKFS */ |
104 | |
105 | /* |
106 | * For nfs_mountroot(void) cast. nfs_mountroot ignores its parameters, if |
107 | * invoked through this table. |
108 | */ |
109 | typedef int (*mountroot_t)(mount_t, vnode_t, vfs_context_t); |
110 | |
111 | enum fs_type_num { |
112 | FT_NFS = 2, |
113 | FT_DEVFS = 19, |
114 | FT_SYNTHFS = 20, |
115 | FT_ROUTEFS = 21, |
116 | FT_NULLFS = 22, |
117 | FT_MOCKFS = 0x6D6F636B |
118 | }; |
119 | |
120 | /* |
121 | * Set up the filesystem operations for vnodes. |
122 | */ |
123 | static struct vfstable vfstbllist[] = { |
124 | /* Sun-compatible Network Filesystem */ |
125 | #if NFSCLIENT |
126 | { &nfs_vfsops, "nfs" , FT_NFS, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFSPREFLIGHT | VFC_VFS64BITREADY | VFC_VFSREADDIR_EXTENDED, NULL, 0, NULL}, |
127 | #endif |
128 | |
129 | /* Device Filesystem */ |
130 | #if DEVFS |
131 | #if CONFIG_MACF |
132 | { &devfs_vfsops, "devfs" , FT_DEVFS, 0, MNT_MULTILABEL, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFS64BITREADY, NULL, 0, NULL}, |
133 | #else |
134 | { &devfs_vfsops, "devfs" , FT_DEVFS, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFS64BITREADY, NULL, 0, NULL}, |
135 | #endif /* MAC */ |
136 | #endif |
137 | |
138 | #ifndef __LP64__ |
139 | #endif /* __LP64__ */ |
140 | |
141 | #if NULLFS |
142 | { &nullfs_vfsops, "nullfs" , FT_NULLFS, 0, (MNT_DONTBROWSE | MNT_RDONLY), NULL, NULL, 0, 0, VFC_VFS64BITREADY, NULL, 0, NULL}, |
143 | #endif /* NULLFS */ |
144 | |
145 | #if MOCKFS |
146 | /* If we are configured for it, mockfs should always be the last standard entry (and thus the last FS we attempt mountroot with) */ |
147 | { &mockfs_vfsops, "mockfs" , FT_MOCKFS, 0, MNT_LOCAL, mockfs_mountroot, NULL, 0, 0, VFC_VFSGENERICARGS, NULL, 0, NULL}, |
148 | #endif /* MOCKFS */ |
149 | |
150 | #if ROUTEFS |
151 | /* If we are configured for it, mockfs should always be the last standard entry (and thus the last FS we attempt mountroot with) */ |
152 | { &routefs_vfsops, "routefs" , FT_ROUTEFS, 0, MNT_LOCAL, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFS64BITREADY, NULL, 0, NULL}, |
153 | #endif /* ROUTEFS */ |
154 | {NULL, "<unassigned>" , 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0, NULL}, |
155 | {NULL, "<unassigned>" , 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0, NULL}, |
156 | }; |
157 | |
158 | /* |
159 | * vfs_init will set maxvfstypenum to the highest defined type number. |
160 | */ |
161 | const int maxvfsslots = sizeof(vfstbllist) / sizeof (struct vfstable); |
162 | int numused_vfsslots = 0; |
163 | int numregistered_fses = 0; |
164 | int maxvfstypenum = VT_NON + 1; |
165 | struct vfstable *vfsconf = vfstbllist; |
166 | |
167 | /* |
168 | * |
169 | * vfs_opv_descs enumerates the list of vnode classes, each with it's own |
170 | * vnode operation vector. It is consulted at system boot to build operation |
171 | * vectors. It is NULL terminated. |
172 | * |
173 | */ |
174 | extern struct vnodeopv_desc mfs_vnodeop_opv_desc; |
175 | extern struct vnodeopv_desc dead_vnodeop_opv_desc; |
176 | #if FIFO && SOCKETS |
177 | extern struct vnodeopv_desc fifo_vnodeop_opv_desc; |
178 | #endif /* SOCKETS */ |
179 | extern struct vnodeopv_desc spec_vnodeop_opv_desc; |
180 | extern struct vnodeopv_desc nfsv2_vnodeop_opv_desc; |
181 | extern struct vnodeopv_desc spec_nfsv2nodeop_opv_desc; |
182 | extern struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc; |
183 | extern struct vnodeopv_desc nfsv4_vnodeop_opv_desc; |
184 | extern struct vnodeopv_desc spec_nfsv4nodeop_opv_desc; |
185 | extern struct vnodeopv_desc fifo_nfsv4nodeop_opv_desc; |
186 | extern struct vnodeopv_desc null_vnodeop_opv_desc; |
187 | extern struct vnodeopv_desc devfs_vnodeop_opv_desc; |
188 | extern struct vnodeopv_desc devfs_spec_vnodeop_opv_desc; |
189 | #if FDESC |
190 | extern struct vnodeopv_desc devfs_devfd_vnodeop_opv_desc; |
191 | extern struct vnodeopv_desc devfs_fdesc_vnodeop_opv_desc; |
192 | #endif /* FDESC */ |
193 | |
194 | #if MOCKFS |
195 | extern struct vnodeopv_desc mockfs_vnodeop_opv_desc; |
196 | #endif /* MOCKFS */ |
197 | |
198 | extern struct vnodeopv_desc nullfs_vnodeop_opv_desc; |
199 | |
200 | struct vnodeopv_desc *vfs_opv_descs[] = { |
201 | &dead_vnodeop_opv_desc, |
202 | #if FIFO && SOCKETS |
203 | &fifo_vnodeop_opv_desc, |
204 | #endif |
205 | &spec_vnodeop_opv_desc, |
206 | #if MFS |
207 | &mfs_vnodeop_opv_desc, |
208 | #endif |
209 | #if NFSCLIENT |
210 | &nfsv2_vnodeop_opv_desc, |
211 | &spec_nfsv2nodeop_opv_desc, |
212 | &nfsv4_vnodeop_opv_desc, |
213 | &spec_nfsv4nodeop_opv_desc, |
214 | #if FIFO |
215 | &fifo_nfsv2nodeop_opv_desc, |
216 | &fifo_nfsv4nodeop_opv_desc, |
217 | #endif |
218 | #endif |
219 | #if DEVFS |
220 | &devfs_vnodeop_opv_desc, |
221 | &devfs_spec_vnodeop_opv_desc, |
222 | #if FDESC |
223 | &devfs_devfd_vnodeop_opv_desc, |
224 | &devfs_fdesc_vnodeop_opv_desc, |
225 | #endif /* FDESC */ |
226 | #endif /* DEVFS */ |
227 | #if NULLFS |
228 | &nullfs_vnodeop_opv_desc, |
229 | #endif /* NULLFS */ |
230 | #if MOCKFS |
231 | &mockfs_vnodeop_opv_desc, |
232 | #endif /* MOCKFS */ |
233 | NULL |
234 | }; |
235 | |