Fix .Os and a .Xr. Expand HISTORY a bit.
[dragonfly.git] / sys / sys / mount.h
CommitLineData
984263bc
MD
1/*
2 * Copyright (c) 1989, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
20 *
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
31 * SUCH DAMAGE.
32 *
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 $
87de5057 35 * $DragonFly: src/sys/sys/mount.h,v 1.23 2006/05/06 02:43:13 dillon Exp $
984263bc
MD
36 */
37
38#ifndef _SYS_MOUNT_H_
39#define _SYS_MOUNT_H_
40
41#include <sys/ucred.h>
42
43#ifndef _KERNEL
44#if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
45#include <sys/stat.h>
46#endif /* !_POSIX_C_SOURCE */
47#endif /* !_KERNEL */
48
49#include <sys/queue.h>
50#ifdef _KERNEL
51#include <sys/lock.h>
52#endif
53
dadab5e9 54struct thread;
2281065e 55struct journal;
0961aa92 56struct vop_ops;
2281065e 57struct vop_mountctl_args;
dadab5e9 58
984263bc
MD
59typedef struct fsid { int32_t val[2]; } fsid_t; /* file system id type */
60
61/*
62 * File identifier.
63 * These are unique per filesystem on a single machine.
64 */
65#define MAXFIDSZ 16
66
67struct fid {
68 u_short fid_len; /* length of data in bytes */
69 u_short fid_reserved; /* force longword alignment */
70 char fid_data[MAXFIDSZ]; /* data (variable length) */
71};
72
73/*
74 * file system statistics
75 */
76
77#define MFSNAMELEN 16 /* length of fs type name, including null */
984263bc 78#define MNAMELEN 80 /* length of buffer for returned name */
984263bc
MD
79
80struct statfs {
81 long f_spare2; /* placeholder */
82 long f_bsize; /* fundamental file system block size */
83 long f_iosize; /* optimal transfer block size */
84 long f_blocks; /* total data blocks in file system */
85 long f_bfree; /* free blocks in fs */
86 long f_bavail; /* free blocks avail to non-superuser */
87 long f_files; /* total file nodes in file system */
88 long f_ffree; /* free file nodes in fs */
89 fsid_t f_fsid; /* file system id */
90 uid_t f_owner; /* user that mounted the filesystem */
91 int f_type; /* type of filesystem */
92 int f_flags; /* copy of mount exported flags */
93 long f_syncwrites; /* count of sync writes since mount */
94 long f_asyncwrites; /* count of async writes since mount */
95 char f_fstypename[MFSNAMELEN]; /* fs type name */
96 char f_mntonname[MNAMELEN]; /* directory on which mounted */
97 long f_syncreads; /* count of sync reads since mount */
98 long f_asyncreads; /* count of async reads since mount */
99 short f_spares1; /* unused spare */
100 char f_mntfromname[MNAMELEN];/* mounted filesystem */
101 short f_spares2; /* unused spare */
102 long f_spare[2]; /* unused spare */
103};
104
ec12abe0 105#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
984263bc
MD
106/*
107 * Structure per mounted file system. Each mounted file system has an
108 * array of operations and an instance record. The file systems are
109 * put on a doubly linked list.
110 *
111 * NOTE: mnt_nvnodelist and mnt_reservedvnlist. At the moment vnodes
112 * are linked into mnt_nvnodelist. At some point in the near future the
113 * vnode list will be split into a 'dirty' and 'clean' list. mnt_nvnodelist
114 * will become the dirty list and mnt_reservedvnlist will become the 'clean'
115 * list. Filesystem kld's syncing code should remain compatible since
116 * they only need to scan the dirty vnode list (nvnodelist -> dirtyvnodelist).
41a01a4d 117 *
0961aa92
MD
118 * NOTE: mnt_fsmanage structures. These structures are required by the new
119 * vnode operations vector abstraction. Each one contains its own operations
120 * vector which is registered just like VNODEOP_SET/vnodeopv_desc except it
121 * is done in the mount code rather then on vfs initialization. This
122 * structure is responsible for per-mount management, including vfs threading,
123 * journaling, and so forth.
124 *
fad57d0e
MD
125 * NOTE: All VFSs must at least populate mnt_vn_ops or those VOP ops that
126 * only take namecache pointers will not be able to find their operations
127 * vector via namecache->nc_mount.
984263bc
MD
128 */
129TAILQ_HEAD(vnodelst, vnode);
2281065e 130TAILQ_HEAD(journallst, journal);
984263bc
MD
131
132struct mount {
133 TAILQ_ENTRY(mount) mnt_list; /* mount list */
134 struct vfsops *mnt_op; /* operations on fs */
135 struct vfsconf *mnt_vfc; /* configuration info */
136 struct vnode *mnt_vnodecovered; /* vnode we mounted on */
137 struct vnode *mnt_syncer; /* syncer vnode */
138 struct vnodelst mnt_nvnodelist; /* list of vnodes this mount */
139 struct lock mnt_lock; /* mount structure lock */
140 int mnt_flag; /* flags shared with user */
141 int mnt_kern_flag; /* kernel only flags */
142 int mnt_maxsymlinklen; /* max size of short symlink */
143 struct statfs mnt_stat; /* cache of filesystem stats */
144 qaddr_t mnt_data; /* private data */
145 time_t mnt_time; /* last time written*/
146 u_int mnt_iosize_max; /* max IO request size */
147 struct vnodelst mnt_reservedvnlist; /* (future) dirty vnode list */
148 int mnt_nvnodelistsize; /* # of vnodes on this mount */
6ddb7618
MD
149
150 /*
151 * ops vectors have a fixed stacking order. All primary calls run
152 * through mnt_vn_ops. This field is typically assigned to
153 * mnt_vn_norm_ops. If journaling has been enabled this field is
154 * usually assigned to mnt_vn_journal_ops.
155 */
156 struct vop_ops *mnt_vn_use_ops; /* current ops set */
157
158 struct vop_ops *mnt_vn_coherency_ops; /* cache coherency ops */
159 struct vop_ops *mnt_vn_journal_ops; /* journaling ops */
160 struct vop_ops *mnt_vn_norm_ops; /* for use by the VFS */
0961aa92
MD
161 struct vop_ops *mnt_vn_spec_ops; /* for use by the VFS */
162 struct vop_ops *mnt_vn_fifo_ops; /* for use by the VFS */
21739618 163 struct namecache *mnt_ncp; /* NCF_MNTPT ncp */
2281065e
MD
164
165 struct journallst mnt_jlist; /* list of active journals */
984263bc 166};
2281065e 167
ec12abe0 168#endif /* _KERNEL || _KERNEL_STRUCTURES */
984263bc
MD
169
170/*
171 * User specifiable flags.
172 */
173#define MNT_RDONLY 0x00000001 /* read only filesystem */
174#define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */
175#define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */
176#define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */
177#define MNT_NODEV 0x00000010 /* don't interpret special files */
178#define MNT_UNION 0x00000020 /* union with underlying filesystem */
179#define MNT_ASYNC 0x00000040 /* file system written asynchronously */
180#define MNT_SUIDDIR 0x00100000 /* special handling of SUID on dirs */
181#define MNT_SOFTDEP 0x00200000 /* soft updates being done */
182#define MNT_NOSYMFOLLOW 0x00400000 /* do not follow symlinks */
183#define MNT_NOATIME 0x10000000 /* disable update of file access time */
184#define MNT_NOCLUSTERR 0x40000000 /* disable cluster read */
185#define MNT_NOCLUSTERW 0x80000000 /* disable cluster write */
186
187/*
188 * NFS export related mount flags.
189 */
190#define MNT_EXRDONLY 0x00000080 /* exported read only */
191#define MNT_EXPORTED 0x00000100 /* file system is exported */
192#define MNT_DEFEXPORTED 0x00000200 /* exported to the world */
193#define MNT_EXPORTANON 0x00000400 /* use anon uid mapping for everyone */
194#define MNT_EXKERB 0x00000800 /* exported with Kerberos uid mapping */
195#define MNT_EXPUBLIC 0x20000000 /* public export (WebNFS) */
196
197/*
198 * Flags set by internal operations,
199 * but visible to the user.
200 * XXX some of these are not quite right.. (I've never seen the root flag set)
201 */
202#define MNT_LOCAL 0x00001000 /* filesystem is stored locally */
203#define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */
204#define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */
205#define MNT_USER 0x00008000 /* mounted by a user */
206#define MNT_IGNORE 0x00800000 /* do not show entry in df */
207
208/*
209 * Mask of flags that are visible to statfs()
210 * XXX I think that this could now become (~(MNT_CMDFLAGS))
211 * but the 'mount' program may need changing to handle this.
212 */
213#define MNT_VISFLAGMASK (MNT_RDONLY | MNT_SYNCHRONOUS | MNT_NOEXEC | \
214 MNT_NOSUID | MNT_NODEV | MNT_UNION | \
215 MNT_ASYNC | MNT_EXRDONLY | MNT_EXPORTED | \
216 MNT_DEFEXPORTED | MNT_EXPORTANON| MNT_EXKERB | \
217 MNT_LOCAL | MNT_USER | MNT_QUOTA | \
218 MNT_ROOTFS | MNT_NOATIME | MNT_NOCLUSTERR| \
219 MNT_NOCLUSTERW | MNT_SUIDDIR | MNT_SOFTDEP | \
220 MNT_IGNORE | MNT_NOSYMFOLLOW | MNT_EXPUBLIC )
221/*
222 * External filesystem command modifier flags.
223 * Unmount can use the MNT_FORCE flag.
224 * XXX These are not STATES and really should be somewhere else.
225 */
226#define MNT_UPDATE 0x00010000 /* not a real mount, just an update */
227#define MNT_DELEXPORT 0x00020000 /* delete export host lists */
228#define MNT_RELOAD 0x00040000 /* reload filesystem data */
229#define MNT_FORCE 0x00080000 /* force unmount or readonly change */
230#define MNT_CMDFLAGS (MNT_UPDATE|MNT_DELEXPORT|MNT_RELOAD|MNT_FORCE)
231/*
232 * Internal filesystem control flags stored in mnt_kern_flag.
233 *
234 * MNTK_UNMOUNT locks the mount entry so that name lookup cannot proceed
235 * past the mount point. This keeps the subtree stable during mounts
236 * and unmounts.
237 *
238 * MNTK_UNMOUNTF permits filesystems to detect a forced unmount while
239 * dounmount() is still waiting to lock the mountpoint. This allows
240 * the filesystem to cancel operations that might otherwise deadlock
241 * with the unmount attempt (used by NFS).
242 */
243#define MNTK_UNMOUNTF 0x00000001 /* forced unmount in progress */
244#define MNTK_UNMOUNT 0x01000000 /* unmount in progress */
245#define MNTK_MWAIT 0x02000000 /* waiting for unmount to finish */
246#define MNTK_WANTRDWR 0x04000000 /* upgrade to read/write requested */
247
861905fb
MD
248/*
249 * mountlist_*() defines
250 */
251#define MNTSCAN_FORWARD 0x0001
252#define MNTSCAN_REVERSE 0x0002
253#define MNTSCAN_NOBUSY 0x0004
254
255#define MNTINS_FIRST 0x0001
256#define MNTINS_LAST 0x0002
257
984263bc
MD
258/*
259 * Sysctl CTL_VFS definitions.
260 *
261 * Second level identifier specifies which filesystem. Second level
262 * identifier VFS_VFSCONF returns information about all filesystems.
263 * Second level identifier VFS_GENERIC is non-terminal.
264 */
265#define VFS_VFSCONF 0 /* get configured filesystems */
266#define VFS_GENERIC 0 /* generic filesystem information */
267/*
268 * Third level identifiers for VFS_GENERIC are given below; third
269 * level identifiers for specific filesystems are given in their
270 * mount specific header files.
271 */
272#define VFS_MAXTYPENUM 1 /* int: highest defined filesystem type */
273#define VFS_CONF 2 /* struct: vfsconf for filesystem given
274 as next argument */
275
276/*
277 * Flags for various system call interfaces.
278 *
279 * waitfor flags to vfs_sync() and getfsstat()
280 */
281#define MNT_WAIT 1 /* synchronously wait for I/O to complete */
282#define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */
6bae6177 283#define MNT_LAZY 4 /* be lazy and do not necessarily push it all */
984263bc
MD
284
285/*
286 * Generic file handle
287 */
288struct fhandle {
289 fsid_t fh_fsid; /* File system id of mount point */
290 struct fid fh_fid; /* File sys specific id */
291};
292typedef struct fhandle fhandle_t;
293
294/*
295 * Export arguments for local filesystem mount calls.
296 */
297struct export_args {
298 int ex_flags; /* export related flags */
299 uid_t ex_root; /* mapping for root uid */
300 struct ucred ex_anon; /* mapping for anonymous user */
301 struct sockaddr *ex_addr; /* net address to which exported */
302 int ex_addrlen; /* and the net address length */
303 struct sockaddr *ex_mask; /* mask of valid bits in saddr */
304 int ex_masklen; /* and the smask length */
305 char *ex_indexfile; /* index file for WebNFS URLs */
306};
307
308/*
309 * Structure holding information for a publicly exported filesystem
310 * (WebNFS). Currently the specs allow just for one such filesystem.
311 */
312struct nfs_public {
313 int np_valid; /* Do we hold valid information */
314 fhandle_t np_handle; /* Filehandle for pub fs (internal) */
315 struct mount *np_mount; /* Mountpoint of exported fs */
316 char *np_index; /* Index file */
317};
318
319/*
320 * Filesystem configuration information. One of these exists for each
321 * type of filesystem supported by the kernel. These are searched at
322 * mount time to identify the requested filesystem.
323 */
324struct vfsconf {
325 struct vfsops *vfc_vfsops; /* filesystem operations vector */
326 char vfc_name[MFSNAMELEN]; /* filesystem type name */
327 int vfc_typenum; /* historic filesystem type number */
328 int vfc_refcount; /* number mounted of this type */
329 int vfc_flags; /* permanent flags */
330 struct vfsconf *vfc_next; /* next in list */
331};
332
333struct ovfsconf {
334 void *vfc_vfsops;
335 char vfc_name[32];
336 int vfc_index;
337 int vfc_refcount;
338 int vfc_flags;
339};
340
341/*
342 * NB: these flags refer to IMPLEMENTATION properties, not properties of
343 * any actual mounts; i.e., it does not make sense to change the flags.
344 */
345#define VFCF_STATIC 0x00010000 /* statically compiled into kernel */
346#define VFCF_NETWORK 0x00020000 /* may get data over the network */
347#define VFCF_READONLY 0x00040000 /* writes are not implemented */
348#define VFCF_SYNTHETIC 0x00080000 /* data does not represent real files */
349#define VFCF_LOOPBACK 0x00100000 /* aliases some other mounted FS */
350#define VFCF_UNICODE 0x00200000 /* stores file names as Unicode*/
351
352#ifdef _KERNEL
353
354#ifdef MALLOC_DECLARE
355MALLOC_DECLARE(M_MOUNT);
356#endif
357extern int maxvfsconf; /* highest defined filesystem type */
358extern int nfs_mount_type; /* vfc_typenum for nfs, or -1 */
359extern struct vfsconf *vfsconf; /* head of list of filesystem types */
360
ec12abe0
MD
361#endif
362
363#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
364
365TAILQ_HEAD(mntlist, mount); /* struct mntlist */
366
984263bc
MD
367/*
368 * Operations supported on mounted file system.
369 */
370#ifdef __STDC__
21739618 371struct nlookupdata;
fad57d0e 372struct nlookupdata;
984263bc
MD
373struct mbuf;
374#endif
375
43c45e8f 376typedef int vfs_mount_t(struct mount *mp, char *path, caddr_t data,
b153f746 377 struct thread *td);
43c45e8f
HP
378typedef int vfs_start_t(struct mount *mp, int flags, struct thread *td);
379typedef int vfs_unmount_t(struct mount *mp, int mntflags,
b153f746 380 struct thread *td);
43c45e8f
HP
381typedef int vfs_root_t(struct mount *mp, struct vnode **vpp);
382typedef int vfs_quotactl_t(struct mount *mp, int cmds, uid_t uid, caddr_t arg,
b153f746 383 struct thread *td);
43c45e8f 384typedef int vfs_statfs_t(struct mount *mp, struct statfs *sbp,
b153f746 385 struct thread *td);
87de5057 386typedef int vfs_sync_t(struct mount *mp, int waitfor);
43c45e8f
HP
387typedef int vfs_vget_t(struct mount *mp, ino_t ino, struct vnode **vpp);
388typedef int vfs_fhtovp_t(struct mount *mp, struct fid *fhp,
b153f746 389 struct vnode **vpp);
43c45e8f 390typedef int vfs_checkexp_t(struct mount *mp, struct sockaddr *nam,
b153f746 391 int *extflagsp, struct ucred **credanonp);
43c45e8f
HP
392typedef int vfs_vptofh_t(struct vnode *vp, struct fid *fhp);
393typedef int vfs_init_t(struct vfsconf *);
394typedef int vfs_uninit_t(struct vfsconf *);
395typedef int vfs_extattrctl_t(struct mount *mp, int cmd,const char *attrname,
396 caddr_t arg, struct thread *td);
397
398struct vfsops {
399 vfs_mount_t *vfs_mount;
400 vfs_start_t *vfs_start;
401 vfs_unmount_t *vfs_unmount;
402 vfs_root_t *vfs_root;
403 vfs_quotactl_t *vfs_quotactl;
404 vfs_statfs_t *vfs_statfs;
405 vfs_sync_t *vfs_sync;
406 vfs_vget_t *vfs_vget;
407 vfs_fhtovp_t *vfs_fhtovp;
408 vfs_checkexp_t *vfs_checkexp;
409 vfs_vptofh_t *vfs_vptofh;
410 vfs_init_t *vfs_init;
411 vfs_uninit_t *vfs_uninit;
412 vfs_extattrctl_t *vfs_extattrctl;
984263bc
MD
413};
414
21739618
MD
415#define VFS_MOUNT(MP, PATH, DATA, P) \
416 (*(MP)->mnt_op->vfs_mount)(MP, PATH, DATA, P)
984263bc
MD
417#define VFS_START(MP, FLAGS, P) (*(MP)->mnt_op->vfs_start)(MP, FLAGS, P)
418#define VFS_UNMOUNT(MP, FORCE, P) (*(MP)->mnt_op->vfs_unmount)(MP, FORCE, P)
419#define VFS_ROOT(MP, VPP) (*(MP)->mnt_op->vfs_root)(MP, VPP)
420#define VFS_QUOTACTL(MP,C,U,A,P) (*(MP)->mnt_op->vfs_quotactl)(MP, C, U, A, P)
421#define VFS_STATFS(MP, SBP, P) (*(MP)->mnt_op->vfs_statfs)(MP, SBP, P)
87de5057 422#define VFS_SYNC(MP, WAIT) (*(MP)->mnt_op->vfs_sync)(MP, WAIT)
984263bc
MD
423#define VFS_VGET(MP, INO, VPP) (*(MP)->mnt_op->vfs_vget)(MP, INO, VPP)
424#define VFS_FHTOVP(MP, FIDP, VPP) \
425 (*(MP)->mnt_op->vfs_fhtovp)(MP, FIDP, VPP)
426#define VFS_VPTOFH(VP, FIDP) (*(VP)->v_mount->mnt_op->vfs_vptofh)(VP, FIDP)
427#define VFS_CHECKEXP(MP, NAM, EXFLG, CRED) \
428 (*(MP)->mnt_op->vfs_checkexp)(MP, NAM, EXFLG, CRED)
429#define VFS_EXTATTRCTL(MP, C, N, A, P) \
430 (*(MP)->mnt_op->vfs_extattrctl)(MP, C, N, A, P)
431
ec12abe0
MD
432#endif
433
434#ifdef _KERNEL
435
984263bc
MD
436#include <sys/module.h>
437
438#define VFS_SET(vfsops, fsname, flags) \
439 static struct vfsconf fsname ## _vfsconf = { \
440 &vfsops, \
441 #fsname, \
442 -1, \
443 0, \
58661e79
JS
444 flags, \
445 NULL \
984263bc
MD
446 }; \
447 static moduledata_t fsname ## _mod = { \
448 #fsname, \
449 vfs_modevent, \
450 & fsname ## _vfsconf \
451 }; \
452 DECLARE_MODULE(fsname, fsname ## _mod, SI_SUB_VFS, SI_ORDER_MIDDLE)
453
ec12abe0
MD
454#endif
455
456#if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
457
984263bc
MD
458#include <net/radix.h>
459
460#define AF_MAX 33 /* XXX */
461
462/*
463 * Network address lookup element
464 */
465struct netcred {
466 struct radix_node netc_rnodes[2];
467 int netc_exflags;
468 struct ucred netc_anon;
469};
470
471/*
472 * Network export information
473 */
474struct netexport {
475 struct netcred ne_defexported; /* Default export */
476 struct radix_node_head *ne_rtable[AF_MAX+1]; /* Individual exports */
477};
478
ec12abe0
MD
479#endif
480
481#ifdef _KERNEL
482
984263bc
MD
483extern char *mountrootfsname;
484
485/*
486 * exported vnode operations
487 */
b153f746 488int dounmount (struct mount *, int, struct thread *);
984263bc 489int vfs_setpublicfs /* set publicly exported fs */
b153f746
RG
490 (struct mount *, struct netexport *, struct export_args *);
491int vfs_lock (struct mount *); /* lock a vfs */
492void vfs_msync (struct mount *, int);
493void vfs_unlock (struct mount *); /* unlock a vfs */
f9642f56 494int vfs_busy (struct mount *, int);
6bdbb368 495void vfs_bufstats(void);
984263bc 496int vfs_export /* process mount export info */
b153f746 497 (struct mount *, struct netexport *, struct export_args *);
984263bc 498struct netcred *vfs_export_lookup /* lookup host in fs export list */
b153f746
RG
499 (struct mount *, struct netexport *, struct sockaddr *);
500int vfs_allocate_syncvnode (struct mount *);
501void vfs_getnewfsid (struct mount *);
502dev_t vfs_getrootfsid (struct mount *);
503struct mount *vfs_getvfs (fsid_t *); /* return vfs given fsid */
504int vfs_modevent (module_t, int, void *);
505int vfs_mountedon (struct vnode *); /* is a vfs mounted on vp */
506int vfs_rootmountalloc (char *, char *, struct mount **);
f9642f56 507void vfs_unbusy (struct mount *);
b153f746
RG
508void vfs_unmountall (void);
509int vfs_register (struct vfsconf *);
510int vfs_unregister (struct vfsconf *);
984263bc
MD
511extern struct nfs_public nfs_pub;
512
513/*
514 * Declarations for these vfs default operations are located in
515 * kern/vfs_default.c, they should be used instead of making "dummy"
516 * functions or casting entries in the VFS op table to "enopnotsupp()".
517 */
43c45e8f
HP
518vfs_start_t vfs_stdstart;
519vfs_mount_t vfs_stdmount;
520vfs_unmount_t vfs_stdunmount;
521vfs_root_t vfs_stdroot;
522vfs_quotactl_t vfs_stdquotactl;
523vfs_statfs_t vfs_stdstatfs;
524vfs_sync_t vfs_stdsync;
525vfs_sync_t vfs_stdnosync;
526vfs_vget_t vfs_stdvget;
527vfs_fhtovp_t vfs_stdfhtovp;
528vfs_checkexp_t vfs_stdcheckexp;
529vfs_vptofh_t vfs_stdvptofh;
530vfs_init_t vfs_stdinit;
531vfs_uninit_t vfs_stduninit;
532vfs_extattrctl_t vfs_stdextattrctl;
533
2281065e 534int journal_mountctl(struct vop_mountctl_args *ap);
432b8263
MD
535void journal_remove_all_journals(struct mount *mp, int flags);
536
861905fb
MD
537void mountlist_insert(struct mount *, int);
538int mountlist_interlock(int (*callback)(struct mount *), struct mount *);
539struct mount *mountlist_boot_getfirst(void);
540void mountlist_remove(struct mount *mp);
541int mountlist_scan(int (*callback)(struct mount *, void *), void *, int);
984263bc
MD
542
543#else /* !_KERNEL */
544
545#include <sys/cdefs.h>
546
547__BEGIN_DECLS
b153f746
RG
548int fstatfs (int, struct statfs *);
549int getfh (const char *, fhandle_t *);
550int getfsstat (struct statfs *, long, int);
551int getmntinfo (struct statfs **, int);
552int mount (const char *, const char *, int, void *);
553int statfs (const char *, struct statfs *);
554int unmount (const char *, int);
555int fhopen (const struct fhandle *, int);
556int fhstat (const struct fhandle *, struct stat *);
557int fhstatfs (const struct fhandle *, struct statfs *);
984263bc
MD
558
559/* C library stuff */
b153f746
RG
560void endvfsent (void);
561struct ovfsconf *getvfsbyname (const char *);
562struct ovfsconf *getvfsbytype (int);
563struct ovfsconf *getvfsent (void);
984263bc 564#define getvfsbyname new_getvfsbyname
b153f746
RG
565int new_getvfsbyname (const char *, struct vfsconf *);
566void setvfsent (int);
567int vfsisloadable (const char *);
568int vfsload (const char *);
984263bc
MD
569__END_DECLS
570
571#endif /* _KERNEL */
572
573#endif /* !_SYS_MOUNT_H_ */
ec12abe0 574