root/kern/vfs_conf.c

    1 /*      $OpenBSD: vfs_conf.c,v 1.33 2007/06/01 05:37:14 deraadt Exp $   */
    2 /*      $NetBSD: vfs_conf.c,v 1.21.4.1 1995/11/01 00:06:26 jtc Exp $    */
    4 /*
    5  * Copyright (c) 1989, 1993
    6  *      The Regents of the University of California.  All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. Neither the name of the University nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  *      @(#)vfs_conf.c  8.8 (Berkeley) 3/31/94
   33  */
   35 #include <sys/param.h>
   36 #include <sys/mount.h>
   37 #include <sys/vnode.h>
   39 #ifdef FFS
   40 #include <ufs/ufs/quota.h>
   41 #include <ufs/ufs/inode.h>
   42 #include <ufs/ffs/ffs_extern.h>
   43 #endif
   45 #ifdef EXT2FS
   46 #include <ufs/ext2fs/ext2fs_extern.h>
   47 #endif
   49 #ifdef CD9660
   50 #include <isofs/cd9660/iso.h>
   51 #include <isofs/cd9660/cd9660_extern.h>
   52 #endif
   54 #ifdef MFS
   55 #include <ufs/mfs/mfs_extern.h>
   56 #endif
   58 #ifdef NFSCLIENT
   59 #include <sys/rwlock.h>         /*  XXX*/
   60 #include <nfs/rpcv2.h>
   61 #include <nfs/nfsproto.h>
   62 #include <nfs/nfsnode.h>
   63 #include <nfs/nfs.h>
   64 #include <nfs/nfsmount.h>
   65 #endif
   67 /*
   68  * This defines the root filesystem.
   69  */
   70 struct vnode *rootvnode;
   72 /*
   73  * Set up the filesystem operations for vnodes.
   74  * The types are defined in mount.h.
   75  */
   78 #ifdef FFS
   79 extern  const struct vfsops ffs_vfsops;
   80 #endif
   82 #ifdef MFS
   83 extern  const struct vfsops mfs_vfsops;
   84 #endif
   86 #ifdef MSDOSFS
   87 extern  const struct vfsops msdosfs_vfsops;
   88 #endif
   90 #ifdef NFSCLIENT
   91 extern  const struct vfsops nfs_vfsops;
   92 #endif
   94 #ifdef PORTAL
   95 extern  const struct vfsops portal_vfsops;
   96 #endif
   98 #ifdef PROCFS
   99 extern  const struct vfsops procfs_vfsops;
  100 #endif
  102 #ifdef CD9660
  103 extern  const struct vfsops cd9660_vfsops;
  104 #endif
  106 #ifdef EXT2FS
  107 extern  const struct vfsops ext2fs_vfsops;
  108 #endif
  110 #ifdef XFS
  111 extern  const struct vfsops xfs_vfsops;
  112 #endif
  114 #ifdef NTFS
  115 extern  const struct vfsops ntfs_vfsops;
  116 #endif
  118 #ifdef UDF
  119 extern  const struct vfsops udf_vfsops;
  120 #endif
  122 /*
  123  * Set up the filesystem operations for vnodes.
  124  */
  125 static struct vfsconf vfsconflist[] = {
  127         /* Fast Filesystem */
  128 #ifdef FFS
  129         { &ffs_vfsops, MOUNT_FFS, 1, 0, MNT_LOCAL, ffs_mountroot, NULL },
  130 #endif
  132         /* Memory-based Filesystem */
  133 #ifdef MFS
  134         { &mfs_vfsops, MOUNT_MFS, 3, 0, MNT_LOCAL, mfs_mountroot, NULL },
  135 #endif
  137 #ifdef EXT2FS
  138         { &ext2fs_vfsops, MOUNT_EXT2FS, 17, 0, MNT_LOCAL, ext2fs_mountroot, NULL },
  139 #endif
  140         /* ISO9660 (aka CDROM) Filesystem */
  141 #ifdef CD9660
  142         { &cd9660_vfsops, MOUNT_CD9660, 14, 0, MNT_LOCAL, cd9660_mountroot, NULL },
  143 #endif
  145         /* MSDOS Filesystem */
  146 #ifdef MSDOSFS
  147         { &msdosfs_vfsops, MOUNT_MSDOS, 4, 0, MNT_LOCAL, NULL, NULL },
  148 #endif
  150         /* Sun-compatible Network Filesystem */
  151 #ifdef NFSCLIENT
  152         { &nfs_vfsops, MOUNT_NFS, 2, 0, 0, nfs_mountroot, NULL },
  153 #endif
  155         /* XFS */
  156 #ifdef XFS
  157         { &xfs_vfsops, MOUNT_XFS, 21, 0, 0, NULL, NULL },
  158 #endif
  160         /* /proc Filesystem */
  161 #ifdef PROCFS
  162         { &procfs_vfsops, MOUNT_PROCFS, 12, 0, 0, NULL, NULL },
  163 #endif
  165         /* Portal Filesystem */
  166 #ifdef PORTAL
  167         { &portal_vfsops, MOUNT_PORTAL, 8, 0, 0, NULL, NULL },
  168 #endif
  170         /* NTFS Filesystem */
  171 #ifdef NTFS
  172         { &ntfs_vfsops, MOUNT_NTFS, 6, 0, MNT_LOCAL, NULL, NULL },
  173 #endif
  175         /* UDF Filesystem */
  176 #ifdef UDF
  177         { &udf_vfsops, MOUNT_UDF, 13, 0, MNT_LOCAL, NULL, NULL },
  178 #endif
  180 };
  183 /*
  184  * Initially the size of the list, vfs_init will set maxvfsconf
  185  * to the highest defined type number.
  186  */
  187 int maxvfsconf = sizeof(vfsconflist) / sizeof(struct vfsconf);
  188 struct vfsconf *vfsconf = vfsconflist;
  191 /*
  192  * vfs_opv_descs enumerates the list of vnode classes, each with its own
  193  * vnode operation vector.  It is consulted at system boot to build operation
  194  * vectors.  It is NULL terminated.
  195  */
  196 extern struct vnodeopv_desc sync_vnodeop_opv_desc;
  197 extern struct vnodeopv_desc ffs_vnodeop_opv_desc;
  198 extern struct vnodeopv_desc ffs_specop_opv_desc;
  199 extern struct vnodeopv_desc ffs_fifoop_opv_desc;
  200 extern struct vnodeopv_desc mfs_vnodeop_opv_desc;
  201 extern struct vnodeopv_desc dead_vnodeop_opv_desc;
  202 extern struct vnodeopv_desc fifo_vnodeop_opv_desc;
  203 extern struct vnodeopv_desc spec_vnodeop_opv_desc;
  204 extern struct vnodeopv_desc nfsv2_vnodeop_opv_desc;
  205 extern struct vnodeopv_desc spec_nfsv2nodeop_opv_desc;
  206 extern struct vnodeopv_desc fifo_nfsv2nodeop_opv_desc;
  207 extern struct vnodeopv_desc portal_vnodeop_opv_desc;
  208 extern struct vnodeopv_desc procfs_vnodeop_opv_desc;
  209 extern struct vnodeopv_desc cd9660_vnodeop_opv_desc;
  210 extern struct vnodeopv_desc cd9660_specop_opv_desc;
  211 extern struct vnodeopv_desc cd9660_fifoop_opv_desc;
  212 extern struct vnodeopv_desc msdosfs_vnodeop_opv_desc;
  213 extern struct vnodeopv_desc ext2fs_vnodeop_opv_desc;
  214 extern struct vnodeopv_desc ext2fs_specop_opv_desc;
  215 extern struct vnodeopv_desc ext2fs_fifoop_opv_desc;
  216 extern struct vnodeopv_desc xfs_vnodeop_opv_desc;
  217 extern struct vnodeopv_desc ntfs_vnodeop_opv_desc;
  218 extern struct vnodeopv_desc udf_vnodeop_opv_desc;
  220 struct vnodeopv_desc *vfs_opv_descs[] = {
  221         &sync_vnodeop_opv_desc,
  222 #ifdef FFS
  223         &ffs_vnodeop_opv_desc,
  224         &ffs_specop_opv_desc,
  225 #ifdef FIFO
  226         &ffs_fifoop_opv_desc,
  227 #endif
  228 #endif
  229         &dead_vnodeop_opv_desc,
  230 #ifdef FIFO
  231         &fifo_vnodeop_opv_desc,
  232 #endif
  233         &spec_vnodeop_opv_desc,
  234 #ifdef MFS
  235         &mfs_vnodeop_opv_desc,
  236 #endif
  237 #ifdef NFSCLIENT
  238         &nfsv2_vnodeop_opv_desc,
  239         &spec_nfsv2nodeop_opv_desc,
  240 #ifdef FIFO
  241         &fifo_nfsv2nodeop_opv_desc,
  242 #endif
  243 #endif
  244 #ifdef PORTAL
  245         &portal_vnodeop_opv_desc,
  246 #endif
  247 #ifdef PROCFS
  248         &procfs_vnodeop_opv_desc,
  249 #endif
  250 #ifdef CD9660
  251         &cd9660_vnodeop_opv_desc,
  252         &cd9660_specop_opv_desc,
  253 #ifdef FIFO
  254         &cd9660_fifoop_opv_desc,
  255 #endif
  256 #endif
  257 #ifdef MSDOSFS
  258         &msdosfs_vnodeop_opv_desc,
  259 #endif
  260 #ifdef EXT2FS
  261         &ext2fs_vnodeop_opv_desc,
  262         &ext2fs_specop_opv_desc,
  263 #ifdef FIFO
  264         &ext2fs_fifoop_opv_desc,
  265 #endif
  266 #endif
  267 #ifdef XFS
  268         &xfs_vnodeop_opv_desc,
  269 #endif
  270 #ifdef NTFS
  271         &ntfs_vnodeop_opv_desc,
  272 #endif
  273 #ifdef UDF
  274         &udf_vnodeop_opv_desc,
  275 #endif
NULL
  278 };