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/* $OpenBSD: vfs_init.c,v 1.43 2019/12/26 13:30:54 bluhm Exp $ */
/* $NetBSD: vfs_init.c,v 1.6 1996/02/09 19:00:58 christos Exp $ */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed
* to Berkeley by John Heidemann of the UCLA Ficus project.
*
* Source: * @(#)i405_init.c 2.10 92/04/27 UCLA Ficus project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)vfs_init.c 8.3 (Berkeley) 1/4/94
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/vnode.h>
#include <sys/pool.h>
struct pool namei_pool;
/* This defines the root filesystem. */
struct vnode *rootvnode;
/* Set up the filesystem operations for vnodes. */
static struct vfsconf vfsconflist[] = {
#ifdef FFS
{ &ffs_vfsops, MOUNT_FFS, 1, 0, MNT_LOCAL | MNT_SWAPPABLE,
sizeof(struct ufs_args) },
#endif
#ifdef MFS
{ &mfs_vfsops, MOUNT_MFS, 3, 0, MNT_LOCAL,
sizeof(struct mfs_args) },
#endif
#ifdef EXT2FS
{ &ext2fs_vfsops, MOUNT_EXT2FS, 17, 0, MNT_LOCAL | MNT_SWAPPABLE,
sizeof(struct ufs_args) },
#endif
#ifdef CD9660
{ &cd9660_vfsops, MOUNT_CD9660, 14, 0, MNT_LOCAL,
sizeof(struct iso_args) },
#endif
#ifdef MSDOSFS
{ &msdosfs_vfsops, MOUNT_MSDOS, 4, 0, MNT_LOCAL | MNT_SWAPPABLE,
sizeof(struct msdosfs_args) },
#endif
#ifdef NFSCLIENT
{ &nfs_vfsops, MOUNT_NFS, 2, 0, MNT_SWAPPABLE,
sizeof(struct nfs_args) },
#endif
#ifdef NTFS
{ &ntfs_vfsops, MOUNT_NTFS, 6, 0, MNT_LOCAL,
sizeof(struct ntfs_args) },
#endif
#ifdef UDF
{ &udf_vfsops, MOUNT_UDF, 13, 0, MNT_LOCAL,
sizeof(struct iso_args) },
#endif
#ifdef FUSE
{ &fusefs_vfsops, MOUNT_FUSEFS, 18, 0, MNT_LOCAL,
sizeof(struct fusefs_args) },
#endif
#ifdef TMPFS
{ &tmpfs_vfsops, MOUNT_TMPFS, 19, 0, MNT_LOCAL,
sizeof(struct tmpfs_args) },
#endif
};
/*
* Initially the size of the list, vfsinit will set maxvfsconf
* to the highest defined type number.
*/
int maxvfsconf = sizeof(vfsconflist) / sizeof(struct vfsconf);
/* Initialize the vnode structures and initialize each file system type. */
void
vfsinit(void)
{
struct vfsconf *vfsp;
int i;
pool_init(&namei_pool, MAXPATHLEN, 0, IPL_NONE, PR_WAITOK, "namei",
NULL);
/* Initialize the vnode table. */
vntblinit();
/* Initialize the vnode name cache. */
nchinit();
maxvfsconf = 0;
for (i = 0; i < nitems(vfsconflist); i++) {
vfsp = &vfsconflist[i];
if (vfsp->vfc_typenum > maxvfsconf)
maxvfsconf = vfsp->vfc_typenum;
if (vfsp->vfc_vfsops->vfs_init != NULL)
(*vfsp->vfc_vfsops->vfs_init)(vfsp);
}
}
struct vfsconf *
vfs_byname(const char *name)
{
int i;
for (i = 0; i < nitems(vfsconflist); i++) {
if (strcmp(vfsconflist[i].vfc_name, name) == 0)
return &vfsconflist[i];
}
return NULL;
}
struct vfsconf *
vfs_bytypenum(int typenum)
{
int i;
for (i = 0; i < nitems(vfsconflist); i++) {
if (vfsconflist[i].vfc_typenum == typenum)
return &vfsconflist[i];
}
return NULL;
}
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