2 * Copyright (c) 1989, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)mount.h 8.21 (Berkeley) 5/20/95
34 * $FreeBSD: src/sys/sys/mount.h,v 1.89.2.7 2003/04/04 20:35:57 tegge Exp $
35 * $DragonFly: src/sys/sys/mount.h,v 1.46.2.1 2008/09/25 02:20:48 dillon Exp $
41 #include <sys/ucred.h>
44 #if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
46 #endif /* !_POSIX_C_SOURCE */
49 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
51 #include <sys/queue.h>
56 #ifndef _SYS_NAMECACHE_H_
57 #include <sys/namecache.h>
59 #ifndef _SYS_STATVFS_H_
60 #include <sys/statvfs.h>
67 struct vop_mountctl_args
;
70 typedef struct fsid
{ int32_t val
[2]; } fsid_t
; /* file system id type */
73 * File identifier. These are unique per filesystem on a single machine.
75 * fix_ext is also used by HAMMER.
80 u_short fid_len
; /* length of data in bytes */
81 u_short fid_ext
; /* extended data */
82 char fid_data
[MAXFIDSZ
]; /* data (variable length) */
86 * file system statistics
89 #define MFSNAMELEN 16 /* length of fs type name, including null */
90 #define MNAMELEN 80 /* length of buffer for returned name */
93 long f_spare2
; /* placeholder */
94 long f_bsize
; /* fundamental file system block size */
95 long f_iosize
; /* optimal transfer block size */
96 long f_blocks
; /* total data blocks in file system */
97 long f_bfree
; /* free blocks in fs */
98 long f_bavail
; /* free blocks avail to non-superuser */
99 long f_files
; /* total file nodes in file system */
100 long f_ffree
; /* free file nodes in fs */
101 fsid_t f_fsid
; /* file system id */
102 uid_t f_owner
; /* user that mounted the filesystem */
103 int f_type
; /* type of filesystem */
104 int f_flags
; /* copy of mount exported flags */
105 long f_syncwrites
; /* count of sync writes since mount */
106 long f_asyncwrites
; /* count of async writes since mount */
107 char f_fstypename
[MFSNAMELEN
]; /* fs type name */
108 char f_mntonname
[MNAMELEN
]; /* directory on which mounted */
109 long f_syncreads
; /* count of sync reads since mount */
110 long f_asyncreads
; /* count of async reads since mount */
111 short f_spares1
; /* unused spare */
112 char f_mntfromname
[MNAMELEN
];/* mounted filesystem */
113 short f_spares2
; /* unused spare */
114 long f_spare
[2]; /* unused spare */
117 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
120 * bio_ops are associated with the mount structure and used in conjuction
121 * with the b_dep field in a buffer. Currently softupdates and HAMMER
122 * utilize this field.
127 TAILQ_ENTRY(bio_ops
) entry
;
128 void (*io_start
) (struct buf
*);
129 void (*io_complete
) (struct buf
*);
130 void (*io_deallocate
) (struct buf
*);
131 int (*io_fsync
) (struct vnode
*);
132 int (*io_sync
) (struct mount
*);
133 void (*io_movedeps
) (struct buf
*, struct buf
*);
134 int (*io_countdeps
) (struct buf
*, int);
135 int (*io_checkread
) (struct buf
*);
136 int (*io_checkwrite
) (struct buf
*);
140 * Structure per mounted file system. Each mounted file system has an
141 * array of operations and an instance record. The file systems are
142 * put on a doubly linked list.
144 * NOTE: mnt_nvnodelist and mnt_reservedvnlist. At the moment vnodes
145 * are linked into mnt_nvnodelist. At some point in the near future the
146 * vnode list will be split into a 'dirty' and 'clean' list. mnt_nvnodelist
147 * will become the dirty list and mnt_reservedvnlist will become the 'clean'
148 * list. Filesystem kld's syncing code should remain compatible since
149 * they only need to scan the dirty vnode list (nvnodelist -> dirtyvnodelist).
151 * NOTE: All VFSs must at least populate mnt_vn_ops or those VOP ops that
152 * only take namecache pointers will not be able to find their operations
153 * vector via namecache->nc_mount.
155 TAILQ_HEAD(vnodelst
, vnode
);
156 TAILQ_HEAD(journallst
, journal
);
159 TAILQ_ENTRY(mount
) mnt_list
; /* mount list */
160 struct vfsops
*mnt_op
; /* operations on fs */
161 struct vfsconf
*mnt_vfc
; /* configuration info */
163 struct vnode
*mnt_syncer
; /* syncer vnode */
164 struct vnodelst mnt_nvnodelist
; /* list of vnodes this mount */
165 struct lock mnt_lock
; /* mount structure lock */
166 int mnt_flag
; /* flags shared with user */
167 int mnt_kern_flag
; /* kernel only flags */
168 int mnt_maxsymlinklen
; /* max size of short symlink */
169 struct statfs mnt_stat
; /* cache of filesystem stats */
170 struct statvfs mnt_vstat
; /* extended stats */
171 qaddr_t mnt_data
; /* private data */
172 time_t mnt_time
; /* last time written*/
173 u_int mnt_iosize_max
; /* max IO request size */
174 struct vnodelst mnt_reservedvnlist
; /* (future) dirty vnode list */
175 int mnt_nvnodelistsize
; /* # of vnodes on this mount */
178 * ops vectors have a fixed stacking order. All primary calls run
179 * through mnt_vn_ops. This field is typically assigned to
180 * mnt_vn_norm_ops. If journaling has been enabled this field is
181 * usually assigned to mnt_vn_journal_ops.
183 struct vop_ops
*mnt_vn_use_ops
; /* current ops set */
185 struct vop_ops
*mnt_vn_coherency_ops
; /* cache coherency ops */
186 struct vop_ops
*mnt_vn_journal_ops
; /* journaling ops */
187 struct vop_ops
*mnt_vn_norm_ops
; /* for use by the VFS */
188 struct vop_ops
*mnt_vn_spec_ops
; /* for use by the VFS */
189 struct vop_ops
*mnt_vn_fifo_ops
; /* for use by the VFS */
190 struct nchandle mnt_ncmountpt
; /* mount point */
191 struct nchandle mnt_ncmounton
; /* mounted on */
192 int mnt_refs
; /* nchandle references */
194 struct journallst mnt_jlist
; /* list of active journals */
195 u_int8_t
*mnt_jbitmap
; /* streamid bitmap */
196 int16_t mnt_streamid
; /* last streamid */
198 struct bio_ops
*mnt_bioops
; /* BIO ops (hammer, softupd) */
201 #endif /* _KERNEL || _KERNEL_STRUCTURES */
204 * User specifiable flags.
206 #define MNT_RDONLY 0x00000001 /* read only filesystem */
207 #define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */
208 #define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */
209 #define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */
210 #define MNT_NODEV 0x00000010 /* don't interpret special files */
211 #define MNT_UNION 0x00000020 /* union with underlying filesystem */
212 #define MNT_ASYNC 0x00000040 /* file system written asynchronously */
213 #define MNT_SUIDDIR 0x00100000 /* special handling of SUID on dirs */
214 #define MNT_SOFTDEP 0x00200000 /* soft updates being done */
215 #define MNT_NOSYMFOLLOW 0x00400000 /* do not follow symlinks */
216 #define MNT_NOATIME 0x10000000 /* disable update of file access time */
217 #define MNT_NOCLUSTERR 0x40000000 /* disable cluster read */
218 #define MNT_NOCLUSTERW 0x80000000 /* disable cluster write */
221 * NFS export related mount flags.
223 #define MNT_EXRDONLY 0x00000080 /* exported read only */
224 #define MNT_EXPORTED 0x00000100 /* file system is exported */
225 #define MNT_DEFEXPORTED 0x00000200 /* exported to the world */
226 #define MNT_EXPORTANON 0x00000400 /* use anon uid mapping for everyone */
227 #define MNT_EXKERB 0x00000800 /* exported with Kerberos uid mapping */
228 #define MNT_EXPUBLIC 0x20000000 /* public export (WebNFS) */
231 * Flags set by internal operations,
232 * but visible to the user.
233 * XXX some of these are not quite right.. (I've never seen the root flag set)
235 #define MNT_LOCAL 0x00001000 /* filesystem is stored locally */
236 #define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */
237 #define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */
238 #define MNT_USER 0x00008000 /* mounted by a user */
239 #define MNT_IGNORE 0x00800000 /* do not show entry in df */
242 * Mask of flags that are visible to statfs()
243 * XXX I think that this could now become (~(MNT_CMDFLAGS))
244 * but the 'mount' program may need changing to handle this.
246 #define MNT_VISFLAGMASK (MNT_RDONLY | MNT_SYNCHRONOUS | MNT_NOEXEC | \
247 MNT_NOSUID | MNT_NODEV | MNT_UNION | \
248 MNT_ASYNC | MNT_EXRDONLY | MNT_EXPORTED | \
249 MNT_DEFEXPORTED | MNT_EXPORTANON| MNT_EXKERB | \
250 MNT_LOCAL | MNT_USER | MNT_QUOTA | \
251 MNT_ROOTFS | MNT_NOATIME | MNT_NOCLUSTERR| \
252 MNT_NOCLUSTERW | MNT_SUIDDIR | MNT_SOFTDEP | \
253 MNT_IGNORE | MNT_NOSYMFOLLOW | MNT_EXPUBLIC )
255 * External filesystem command modifier flags.
256 * Unmount can use the MNT_FORCE flag.
257 * XXX These are not STATES and really should be somewhere else.
259 #define MNT_UPDATE 0x00010000 /* not a real mount, just an update */
260 #define MNT_DELEXPORT 0x00020000 /* delete export host lists */
261 #define MNT_RELOAD 0x00040000 /* reload filesystem data */
262 #define MNT_FORCE 0x00080000 /* force unmount or readonly change */
263 #define MNT_CMDFLAGS (MNT_UPDATE|MNT_DELEXPORT|MNT_RELOAD|MNT_FORCE)
265 * Internal filesystem control flags stored in mnt_kern_flag.
267 * MNTK_UNMOUNT locks the mount entry so that name lookup cannot proceed
268 * past the mount point. This keeps the subtree stable during mounts
271 * MNTK_UNMOUNTF permits filesystems to detect a forced unmount while
272 * dounmount() is still waiting to lock the mountpoint. This allows
273 * the filesystem to cancel operations that might otherwise deadlock
274 * with the unmount attempt (used by NFS).
276 * MNTK_NOSTKMNT prevents mounting another filesystem inside the flagged one.
278 #define MNTK_UNMOUNTF 0x00000001 /* forced unmount in progress */
279 #define MNTK_NCALIASED 0x00800000 /* namecached aliased */
280 #define MNTK_UNMOUNT 0x01000000 /* unmount in progress */
281 #define MNTK_MWAIT 0x02000000 /* waiting for unmount to finish */
282 #define MNTK_WANTRDWR 0x04000000 /* upgrade to read/write requested */
283 #define MNTK_FSMID 0x08000000 /* getattr supports FSMIDs */
284 #define MNTK_NOSTKMNT 0x10000000 /* no stacked mount point allowed */
287 * mountlist_*() defines
289 #define MNTSCAN_FORWARD 0x0001
290 #define MNTSCAN_REVERSE 0x0002
291 #define MNTSCAN_NOBUSY 0x0004
293 #define MNTINS_FIRST 0x0001
294 #define MNTINS_LAST 0x0002
297 * Sysctl CTL_VFS definitions.
299 * Second level identifier specifies which filesystem. Second level
300 * identifier VFS_VFSCONF returns information about all filesystems.
301 * Second level identifier VFS_GENERIC is non-terminal.
303 #define VFS_VFSCONF 0 /* get configured filesystems */
304 #define VFS_GENERIC 0 /* generic filesystem information */
306 * Third level identifiers for VFS_GENERIC are given below; third
307 * level identifiers for specific filesystems are given in their
308 * mount specific header files.
310 #define VFS_MAXTYPENUM 1 /* int: highest defined filesystem type */
311 #define VFS_CONF 2 /* struct: vfsconf for filesystem given
315 * Flags for various system call interfaces.
317 * waitfor flags to vfs_sync() and getfsstat()
319 #define MNT_WAIT 1 /* synchronously wait for I/O to complete */
320 #define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */
321 #define MNT_LAZY 4 /* be lazy and do not necessarily push it all */
324 * Generic file handle
327 fsid_t fh_fsid
; /* File system id of mount point */
328 struct fid fh_fid
; /* File sys specific id */
330 typedef struct fhandle fhandle_t
;
333 * Export arguments for local filesystem mount calls.
336 int ex_flags
; /* export related flags */
337 uid_t ex_root
; /* mapping for root uid */
338 struct ucred ex_anon
; /* mapping for anonymous user */
339 struct sockaddr
*ex_addr
; /* net address to which exported */
340 int ex_addrlen
; /* and the net address length */
341 struct sockaddr
*ex_mask
; /* mask of valid bits in saddr */
342 int ex_masklen
; /* and the smask length */
343 char *ex_indexfile
; /* index file for WebNFS URLs */
347 * Structure holding information for a publicly exported filesystem
348 * (WebNFS). Currently the specs allow just for one such filesystem.
351 int np_valid
; /* Do we hold valid information */
352 fhandle_t np_handle
; /* Filehandle for pub fs (internal) */
353 struct mount
*np_mount
; /* Mountpoint of exported fs */
354 char *np_index
; /* Index file */
358 * Filesystem configuration information. One of these exists for each
359 * type of filesystem supported by the kernel. These are searched at
360 * mount time to identify the requested filesystem.
363 struct vfsops
*vfc_vfsops
; /* filesystem operations vector */
364 char vfc_name
[MFSNAMELEN
]; /* filesystem type name */
365 int vfc_typenum
; /* historic filesystem type number */
366 int vfc_refcount
; /* number mounted of this type */
367 int vfc_flags
; /* permanent flags */
368 struct vfsconf
*vfc_next
; /* next in list */
380 * NB: these flags refer to IMPLEMENTATION properties, not properties of
381 * any actual mounts; i.e., it does not make sense to change the flags.
383 #define VFCF_STATIC 0x00010000 /* statically compiled into kernel */
384 #define VFCF_NETWORK 0x00020000 /* may get data over the network */
385 #define VFCF_READONLY 0x00040000 /* writes are not implemented */
386 #define VFCF_SYNTHETIC 0x00080000 /* data does not represent real files */
387 #define VFCF_LOOPBACK 0x00100000 /* aliases some other mounted FS */
388 #define VFCF_UNICODE 0x00200000 /* stores file names as Unicode*/
392 #ifdef MALLOC_DECLARE
393 MALLOC_DECLARE(M_MOUNT
);
395 extern int maxvfsconf
; /* highest defined filesystem type */
396 extern int nfs_mount_type
; /* vfc_typenum for nfs, or -1 */
397 extern struct vfsconf
*vfsconf
; /* head of list of filesystem types */
401 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
403 TAILQ_HEAD(mntlist
, mount
); /* struct mntlist */
406 * Operations supported on mounted file system.
414 typedef int vfs_mount_t(struct mount
*mp
, char *path
, caddr_t data
,
416 typedef int vfs_start_t(struct mount
*mp
, int flags
);
417 typedef int vfs_unmount_t(struct mount
*mp
, int mntflags
);
418 typedef int vfs_root_t(struct mount
*mp
, struct vnode
**vpp
);
419 typedef int vfs_quotactl_t(struct mount
*mp
, int cmds
, uid_t uid
, caddr_t arg
,
421 typedef int vfs_statfs_t(struct mount
*mp
, struct statfs
*sbp
,
423 typedef int vfs_statvfs_t(struct mount
*mp
, struct statvfs
*sbp
,
425 typedef int vfs_sync_t(struct mount
*mp
, int waitfor
);
426 typedef int vfs_vget_t(struct mount
*mp
, ino_t ino
, struct vnode
**vpp
);
427 typedef int vfs_fhtovp_t(struct mount
*mp
, struct vnode
*rootvp
,
428 struct fid
*fhp
, struct vnode
**vpp
);
429 typedef int vfs_checkexp_t(struct mount
*mp
, struct sockaddr
*nam
,
430 int *extflagsp
, struct ucred
**credanonp
);
431 typedef int vfs_vptofh_t(struct vnode
*vp
, struct fid
*fhp
);
432 typedef int vfs_init_t(struct vfsconf
*);
433 typedef int vfs_uninit_t(struct vfsconf
*);
434 typedef int vfs_extattrctl_t(struct mount
*mp
, int cmd
,const char *attrname
,
435 caddr_t arg
, struct ucred
*cred
);
438 vfs_mount_t
*vfs_mount
;
439 vfs_start_t
*vfs_start
;
440 vfs_unmount_t
*vfs_unmount
;
441 vfs_root_t
*vfs_root
;
442 vfs_quotactl_t
*vfs_quotactl
;
443 vfs_statfs_t
*vfs_statfs
;
444 vfs_sync_t
*vfs_sync
;
445 vfs_vget_t
*vfs_vget
;
446 vfs_fhtovp_t
*vfs_fhtovp
;
447 vfs_checkexp_t
*vfs_checkexp
;
448 vfs_vptofh_t
*vfs_vptofh
;
449 vfs_init_t
*vfs_init
;
450 vfs_uninit_t
*vfs_uninit
;
451 vfs_extattrctl_t
*vfs_extattrctl
;
452 vfs_statvfs_t
*vfs_statvfs
;
455 #define VFS_MOUNT(MP, PATH, DATA, CRED) \
456 (*(MP)->mnt_op->vfs_mount)(MP, PATH, DATA, CRED)
457 #define VFS_START(MP, FLAGS) (*(MP)->mnt_op->vfs_start)(MP, FLAGS)
458 #define VFS_UNMOUNT(MP, FORCE) (*(MP)->mnt_op->vfs_unmount)(MP, FORCE)
459 #define VFS_ROOT(MP, VPP) (*(MP)->mnt_op->vfs_root)(MP, VPP)
460 #define VFS_QUOTACTL(MP,C,U,A,CRED) \
461 (*(MP)->mnt_op->vfs_quotactl)(MP, C, U, A, CRED)
462 #define VFS_STATFS(MP, SBP, CRED) (*(MP)->mnt_op->vfs_statfs)(MP, SBP, CRED)
463 #define VFS_STATVFS(MP, SBP, CRED) (*(MP)->mnt_op->vfs_statvfs)(MP, SBP, CRED)
464 #define VFS_SYNC(MP, WAIT) (*(MP)->mnt_op->vfs_sync)(MP, WAIT)
465 #define VFS_VGET(MP, INO, VPP) (*(MP)->mnt_op->vfs_vget)(MP, INO, VPP)
466 #define VFS_FHTOVP(MP, ROOTVP, FIDP, VPP) \
467 (*(MP)->mnt_op->vfs_fhtovp)(MP, ROOTVP, FIDP, VPP)
468 #define VFS_VPTOFH(VP, FIDP) (*(VP)->v_mount->mnt_op->vfs_vptofh)(VP, FIDP)
469 #define VFS_CHECKEXP(MP, NAM, EXFLG, CRED) \
470 (*(MP)->mnt_op->vfs_checkexp)(MP, NAM, EXFLG, CRED)
471 #define VFS_EXTATTRCTL(MP, C, N, A, CRED) \
472 (*(MP)->mnt_op->vfs_extattrctl)(MP, C, N, A, CRED)
478 #include <sys/module.h>
480 #define VFS_SET(vfsops, fsname, flags) \
481 static struct vfsconf fsname ## _vfsconf = { \
489 static moduledata_t fsname ## _mod = { \
492 & fsname ## _vfsconf \
494 DECLARE_MODULE(fsname, fsname ## _mod, SI_SUB_VFS, SI_ORDER_MIDDLE)
498 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
500 #include <net/radix.h>
502 #define AF_MAX 35 /* XXX */
505 * Network address lookup element
508 struct radix_node netc_rnodes
[2];
510 struct ucred netc_anon
;
514 * Network export information
517 struct netcred ne_defexported
; /* Default export */
518 struct radix_node_head
*ne_rtable
[AF_MAX
+1]; /* Individual exports */
525 extern char *mountrootfsname
;
528 * exported vnode operations
530 int dounmount (struct mount
*, int);
531 int vfs_setpublicfs
/* set publicly exported fs */
532 (struct mount
*, struct netexport
*, const struct export_args
*);
533 int vfs_lock (struct mount
*); /* lock a vfs */
534 void vfs_msync (struct mount
*, int);
535 void vfs_unlock (struct mount
*); /* unlock a vfs */
536 int vfs_busy (struct mount
*, int);
537 void vfs_bufstats(void);
538 int vfs_export
/* process mount export info */
539 (struct mount
*, struct netexport
*, const struct export_args
*);
540 struct netcred
*vfs_export_lookup
/* lookup host in fs export list */
541 (struct mount
*, struct netexport
*, struct sockaddr
*);
542 int vfs_allocate_syncvnode (struct mount
*);
543 void vfs_getnewfsid (struct mount
*);
544 int vfs_setfsid(struct mount
*mp
, fsid_t
*template);
545 cdev_t
vfs_getrootfsid (struct mount
*);
546 struct mount
*vfs_getvfs (fsid_t
*); /* return vfs given fsid */
547 int vfs_modevent (module_t
, int, void *);
548 int vfs_mountedon (struct vnode
*); /* is a vfs mounted on vp */
549 int vfs_rootmountalloc (char *, char *, struct mount
**);
550 void vfs_unbusy (struct mount
*);
551 void vfs_unmountall (void);
552 int vfs_register (struct vfsconf
*);
553 int vfs_unregister (struct vfsconf
*);
554 extern struct nfs_public nfs_pub
;
557 * Declarations for these vfs default operations are located in
558 * kern/vfs_default.c, they should be used instead of making "dummy"
559 * functions or casting entries in the VFS op table to "enopnotsupp()".
561 vfs_start_t vfs_stdstart
;
562 vfs_mount_t vfs_stdmount
;
563 vfs_unmount_t vfs_stdunmount
;
564 vfs_root_t vfs_stdroot
;
565 vfs_quotactl_t vfs_stdquotactl
;
566 vfs_statfs_t vfs_stdstatfs
;
567 vfs_statvfs_t vfs_stdstatvfs
;
568 vfs_sync_t vfs_stdsync
;
569 vfs_sync_t vfs_stdnosync
;
570 vfs_vget_t vfs_stdvget
;
571 vfs_fhtovp_t vfs_stdfhtovp
;
572 vfs_checkexp_t vfs_stdcheckexp
;
573 vfs_vptofh_t vfs_stdvptofh
;
574 vfs_init_t vfs_stdinit
;
575 vfs_uninit_t vfs_stduninit
;
576 vfs_extattrctl_t vfs_stdextattrctl
;
578 struct vop_access_args
;
579 int vop_helper_access(struct vop_access_args
*ap
, uid_t ino_uid
, gid_t ino_gid
,
580 mode_t ino_mode
, u_int32_t ino_flags
);
581 int vop_helper_setattr_flags(u_int32_t
*ino_flags
, u_int32_t vaflags
,
582 uid_t uid
, struct ucred
*cred
);
583 uid_t
vop_helper_create_uid(struct mount
*mp
, mode_t dmode
, uid_t duid
,
584 struct ucred
*cred
, mode_t
*modep
);
585 int vop_helper_chmod(struct vnode
*vp
, mode_t new_mode
, struct ucred
*cred
,
586 uid_t cur_uid
, gid_t cur_gid
, mode_t
*cur_modep
);
587 int vop_helper_chown(struct vnode
*vp
, uid_t new_uid
, gid_t new_gid
,
589 uid_t
*cur_uidp
, gid_t
*cur_gidp
, mode_t
*cur_modep
);
591 void add_bio_ops(struct bio_ops
*ops
);
592 void rem_bio_ops(struct bio_ops
*ops
);
594 int journal_mountctl(struct vop_mountctl_args
*ap
);
595 void journal_remove_all_journals(struct mount
*mp
, int flags
);
597 void mountlist_insert(struct mount
*, int);
598 int mountlist_interlock(int (*callback
)(struct mount
*), struct mount
*);
599 struct mount
*mountlist_boot_getfirst(void);
600 void mountlist_remove(struct mount
*mp
);
601 int mountlist_scan(int (*callback
)(struct mount
*, void *), void *, int);
605 #include <sys/cdefs.h>
608 int fstatfs (int, struct statfs
*);
609 int getfh (const char *, fhandle_t
*);
610 int getfsstat (struct statfs
*, long, int);
611 int getmntinfo (struct statfs
**, int);
612 int getmntvinfo (struct statfs
**, struct statvfs
**, int);
613 int mount (const char *, const char *, int, void *);
614 int statfs (const char *, struct statfs
*);
615 int unmount (const char *, int);
616 int fhopen (const struct fhandle
*, int);
617 int fhstat (const struct fhandle
*, struct stat
*);
618 int fhstatfs (const struct fhandle
*, struct statfs
*);
620 /* C library stuff */
621 void endvfsent (void);
622 struct ovfsconf
*getvfsbyname (const char *);
623 struct ovfsconf
*getvfsbytype (int);
624 struct ovfsconf
*getvfsent (void);
625 #define getvfsbyname new_getvfsbyname
626 int new_getvfsbyname (const char *, struct vfsconf
*);
627 void setvfsent (int);
628 int vfsisloadable (const char *);
629 int vfsload (const char *);
634 #endif /* !_SYS_MOUNT_H_ */