1/* 2 * Copyright (c) 2000-2007 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#if CONFIG_VFS_FUNNEL 76#define VFS_THREAD_SAFE_FLAG VFC_VFSTHREADSAFE /* Only defined under CONFIG_VFS_FUNNEL */ 77#else 78#define VFS_THREAD_SAFE_FLAG 0 79#endif /* CONFIG_VFS_FUNNEL */ 80 81 82/* 83 * These define the root filesystem, device, and root filesystem type. 84 */ 85struct mount *rootfs; 86struct vnode *rootvnode; 87 88#ifdef CONFIG_IMGSRC_ACCESS 89struct vnode *imgsrc_rootvnodes[MAX_IMAGEBOOT_NESTING]; /* [0] -> source volume, [1] -> first disk image */ 90#endif /* CONFIG_IMGSRC_ACCESS */ 91 92int (*mountroot)(void) = NULL; 93 94/* 95 * Set up the initial array of known filesystem types. 96 */ 97extern struct vfsops mfs_vfsops; 98extern int mfs_mountroot(mount_t, vnode_t, vfs_context_t); /* dead */ 99extern struct vfsops hfs_vfsops; 100extern int hfs_mountroot(mount_t, vnode_t, vfs_context_t); 101extern struct vfsops nfs_vfsops; 102extern int nfs_mountroot(void); 103extern struct vfsops afs_vfsops; 104extern struct vfsops null_vfsops; 105extern struct vfsops devfs_vfsops; 106 107/* 108 * For nfs_mountroot(void) cast. nfs_mountroot ignores its parameters, if 109 * invoked through this table. 110 */ 111typedef int (*mountroot_t)(mount_t, vnode_t, vfs_context_t); 112 113/* 114 * Set up the filesystem operations for vnodes. 115 */ 116static struct vfstable vfstbllist[] = { 117 /* HFS/HFS+ Filesystem */ 118#if HFS 119 { &hfs_vfsops, "hfs", 17, 0, (MNT_LOCAL | MNT_DOVOLFS), hfs_mountroot, NULL, 0, 0, VFC_VFSLOCALARGS | VFC_VFSREADDIR_EXTENDED | VFS_THREAD_SAFE_FLAG | VFC_VFS64BITREADY | VFC_VFSVNOP_PAGEOUTV2 | VFC_VFSVNOP_PAGEINV2, NULL, 0}, 120#endif 121 122 /* Memory-based Filesystem */ 123 124#ifndef __LP64__ 125#if MFS 126 { &mfs_vfsops, "mfs", 3, 0, MNT_LOCAL, mfs_mountroot, NULL, 0, 0, VFC_VFSGENERICARGS, NULL, 0}, 127#endif 128#endif /* __LP64__ */ 129 130 /* Sun-compatible Network Filesystem */ 131#if NFSCLIENT 132 { &nfs_vfsops, "nfs", 2, 0, 0, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFC_VFSPREFLIGHT | VFS_THREAD_SAFE_FLAG | VFC_VFS64BITREADY | VFC_VFSREADDIR_EXTENDED, NULL, 0}, 133#endif 134 135 /* Andrew Filesystem */ 136#ifndef __LP64__ 137#if AFS 138 { &afs_vfsops, "andrewfs", 13, 0, 0, afs_mountroot, NULL, 0, 0, VFC_VFSGENERICARGS , NULL, 0}, 139#endif 140#endif /* __LP64__ */ 141 142 /* Device Filesystem */ 143#if DEVFS 144#if CONFIG_MACF 145 { &devfs_vfsops, "devfs", 19, 0, (MNT_DONTBROWSE | MNT_MULTILABEL), NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFS_THREAD_SAFE_FLAG | VFC_VFS64BITREADY, NULL, 0}, 146#else 147 { &devfs_vfsops, "devfs", 19, 0, MNT_DONTBROWSE, NULL, NULL, 0, 0, VFC_VFSGENERICARGS | VFS_THREAD_SAFE_FLAG | VFC_VFS64BITREADY, NULL, 0}, 148#endif /* MAC */ 149#endif 150 151#ifndef __LP64__ 152#endif /* __LP64__ */ 153 154 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 155 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 156 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 157 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 158 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 159 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 160 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 161 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 162 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 163 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 164 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 165 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 166 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 167 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0}, 168 {NULL, "<unassigned>", 0, 0, 0, NULL, NULL, 0, 0, 0, NULL, 0} 169}; 170 171/* 172 * Initially the size of the list, vfs_init will set maxvfsconf 173 * to the highest defined type number. 174 */ 175int maxvfsslots = sizeof(vfstbllist) / sizeof (struct vfstable); 176int numused_vfsslots = 0; 177int maxvfsconf = sizeof(vfstbllist) / sizeof (struct vfstable); 178struct vfstable *vfsconf = vfstbllist; 179 180/* 181 * 182 * vfs_opv_descs enumerates the list of vnode classes, each with it's own 183 * vnode operation vector. It is consulted at system boot to build operation 184 * vectors. It is NULL terminated. 185 * 186 */ 187extern struct vnodeopv_desc mfs_vnodeop_opv_desc; 188extern struct vnodeopv_desc dead_vnodeop_opv_desc; 189#if FIFO && SOCKETS 190extern struct vnodeopv_desc fifo_vnodeop_opv_desc; 191#endif /* SOCKETS */ 192extern struct vnodeopv_desc spec_vnodeop_opv_desc; 193extern struct vnodeopv_desc nfsv2_vnodeop_opv_desc; 194extern struct vnodeopv_desc spec_nfsv2nodeop_opv_desc; 195extern struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc; 196extern struct vnodeopv_desc nfsv4_vnodeop_opv_desc; 197extern struct vnodeopv_desc spec_nfsv4nodeop_opv_desc; 198extern struct vnodeopv_desc fifo_nfsv4nodeop_opv_desc; 199extern struct vnodeopv_desc null_vnodeop_opv_desc; 200extern struct vnodeopv_desc hfs_vnodeop_opv_desc; 201extern struct vnodeopv_desc hfs_std_vnodeop_opv_desc; 202extern struct vnodeopv_desc hfs_specop_opv_desc; 203extern struct vnodeopv_desc hfs_fifoop_opv_desc; 204extern struct vnodeopv_desc devfs_vnodeop_opv_desc; 205extern struct vnodeopv_desc devfs_spec_vnodeop_opv_desc; 206#if FDESC 207extern struct vnodeopv_desc devfs_devfd_vnodeop_opv_desc; 208extern struct vnodeopv_desc devfs_fdesc_vnodeop_opv_desc; 209#endif /* FDESC */ 210 211struct vnodeopv_desc *vfs_opv_descs[] = { 212 &dead_vnodeop_opv_desc, 213#if FIFO && SOCKETS 214 &fifo_vnodeop_opv_desc, 215#endif 216 &spec_vnodeop_opv_desc, 217#if MFS 218 &mfs_vnodeop_opv_desc, 219#endif 220#if NFSCLIENT 221 &nfsv2_vnodeop_opv_desc, 222 &spec_nfsv2nodeop_opv_desc, 223 &nfsv4_vnodeop_opv_desc, 224 &spec_nfsv4nodeop_opv_desc, 225#if FIFO 226 &fifo_nfsv2nodeop_opv_desc, 227 &fifo_nfsv4nodeop_opv_desc, 228#endif 229#endif 230#if HFS 231 &hfs_vnodeop_opv_desc, 232 &hfs_std_vnodeop_opv_desc, 233 &hfs_specop_opv_desc, 234#if FIFO 235 &hfs_fifoop_opv_desc, 236#endif 237#endif 238#if DEVFS 239 &devfs_vnodeop_opv_desc, 240 &devfs_spec_vnodeop_opv_desc, 241#if FDESC 242 &devfs_devfd_vnodeop_opv_desc, 243 &devfs_fdesc_vnodeop_opv_desc, 244#endif /* FDESC */ 245#endif /* DEVFS */ 246 NULL 247}; 248