2a3e5eeb7c
- Remove all NFS related stuff from file system specific code. - Drop the vfs_checkexp hook and generalize it in the new nfs_check_export function, thus removing redundancy from all file systems. - Move all NFS export-related stuff from kern/vfs_subr.c to the new file sys/nfs/nfs_export.c. The former was becoming large and its code is always compiled, regardless of the build options. Using the latter, the code is only compiled in when NFSSERVER is enabled. While doing this, also make some functions in nfs_subs.c conditional to NFSSERVER. - Add a new command in nfssvc(2), called NFSSVC_SETEXPORTSLIST, that takes a path and a set of export entries. At the moment it can only clear the exports list or append entries, one by one, but it is done in a way that allows setting the whole set of entries atomically in the future (see the comment in mountd_set_exports_list or in doc/TODO). - Change mountd(8) to use the nfssvc(2) system call instead of mount(2) so that it becomes file system agnostic. In fact, all this whole thing was done to remove a 'XXX' block from this utility! - Change the mount*, newfs and fsck* userland utilities to not deal with NFS exports initialization; done internally by the kernel when initializing the NFS support for each file system. - Implement an interface for VFS (called VFS hooks) so that several kernel subsystems can run arbitrary code upon receipt of specific VFS events. At the moment, this only provides support for unmount and is used to destroy NFS exports lists from the file systems being unmounted, though it has room for extension. Thanks go to yamt@, chs@, thorpej@, wrstuden@ and others for their comments and advice in the development of this patch.
134 lines
5.5 KiB
C
134 lines
5.5 KiB
C
/* $NetBSD: filecore_extern.h,v 1.10 2005/09/23 12:10:32 jmmv Exp $ */
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/*-
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* Copyright (c) 1994 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* filecore_extern.h 1.1 1998/6/26
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*/
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/*-
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* Copyright (c) 1998 Andrew McMurry
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* filecore_extern.h 1.1 1998/6/26
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*/
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/*
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* Definitions used in the kernel for Acorn Filecore file system support.
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*/
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#ifndef FILECOREMNT_ROOT
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#define FILECOREMNT_ROOT 0
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#endif
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#include <sys/mallocvar.h>
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MALLOC_DECLARE(M_FILECOREMNT);
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struct filecore_mnt {
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struct mount *fc_mountp;
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dev_t fc_dev;
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struct vnode *fc_devvp;
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u_int32_t blksize;
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u_int32_t log2bsize;
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u_int32_t map;
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u_int32_t idspz;
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u_int32_t mask;
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u_int64_t nblks;
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uid_t fc_uid; /* uid to set as owner of the files */
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gid_t fc_gid; /* gid to set as owner of the files */
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int fc_mntflags;
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struct filecore_disc_record drec;
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};
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#define VFSTOFILECORE(mp) ((struct filecore_mnt *)((mp)->mnt_data))
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#define blkoff(fcp, loc) ((loc) & ((fcp)->blksize-1))
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#define lblktosize(fcp, blk) ((blk) << (fcp)->log2bsize)
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#define lblkno(fcp, loc) ((loc) >> (fcp)->log2bsize)
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#define blksize(fcp, ip, lbn) ((fcp)->blksize)
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extern struct pool filecore_node_pool;
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int filecore_mount __P((struct mount *,
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const char *, void *, struct nameidata *, struct proc *));
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int filecore_start __P((struct mount *, int, struct proc *));
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int filecore_unmount __P((struct mount *, int, struct proc *));
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int filecore_root __P((struct mount *, struct vnode **));
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int filecore_quotactl __P((struct mount *, int, uid_t, void *, struct proc *));
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int filecore_statvfs __P((struct mount *, struct statvfs *, struct proc *));
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int filecore_sync __P((struct mount *, int, struct ucred *, struct proc *));
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int filecore_vget __P((struct mount *, ino_t, struct vnode **));
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int filecore_fhtovp __P((struct mount *, struct fid *, struct vnode **));
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int filecore_checkexp __P((struct mount *, struct mbuf *, int *,
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struct ucred **));
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int filecore_vptofh __P((struct vnode *, struct fid *));
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void filecore_init __P((void));
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void filecore_reinit __P((void));
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void filecore_done __P((void));
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#ifdef SYSCTL_SETUP_PROTO
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SYSCTL_SETUP_PROTO(sysctl_vfs_filecore_setup);
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#endif /* SYSCTL_SETUP_PROTO */
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extern int (**filecore_vnodeop_p) __P((void *));
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int filecore_bbchecksum __P((void *));
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int filecore_bread __P((struct filecore_mnt *, u_int32_t, int, struct ucred *,
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struct buf **));
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int filecore_map __P((struct filecore_mnt *, u_int32_t, daddr_t, daddr_t *));
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