mount.h revision 98233
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: head/sys/sys/mount.h 98233 2002-06-14 20:04:21Z mux $ 35 */ 36 37#ifndef _SYS_MOUNT_H_ 38#define _SYS_MOUNT_H_ 39 40/* 41 * XXX - compatability until lockmgr() goes away or all the #includes are 42 * updated. 43 */ 44#include <sys/lockmgr.h> 45 46#include <sys/ucred.h> 47#include <sys/queue.h> 48#include <sys/uio.h> 49#ifdef _KERNEL 50#include <sys/_lock.h> 51#include <sys/_mutex.h> 52#endif 53 54struct netcred; 55struct netexport; 56 57typedef struct fsid { int32_t val[2]; } fsid_t; /* filesystem id type */ 58 59/* 60 * File identifier. 61 * These are unique per filesystem on a single machine. 62 */ 63#define MAXFIDSZ 16 64 65struct fid { 66 u_short fid_len; /* length of data in bytes */ 67 u_short fid_reserved; /* force longword alignment */ 68 char fid_data[MAXFIDSZ]; /* data (variable length) */ 69}; 70 71/* 72 * filesystem statistics 73 */ 74 75#define MFSNAMELEN 16 /* length of fs type name, including null */ 76#if defined(__i386__) || defined(__powerpc__) 77#define MNAMELEN 80 /* length of buffer for returned name */ 78#endif 79#if defined(__alpha__) || defined(__ia64__) || defined(__sparc64__) 80#define MNAMELEN 72 /* length of buffer for returned name */ 81#endif 82 83struct statfs { 84 long f_spare2; /* placeholder */ 85 long f_bsize; /* fundamental filesystem block size */ 86 long f_iosize; /* optimal transfer block size */ 87 long f_blocks; /* total data blocks in filesystem */ 88 long f_bfree; /* free blocks in fs */ 89 long f_bavail; /* free blocks avail to non-superuser */ 90 long f_files; /* total file nodes in filesystem */ 91 long f_ffree; /* free file nodes in fs */ 92 fsid_t f_fsid; /* filesystem id */ 93 uid_t f_owner; /* user that mounted the filesystem */ 94 int f_type; /* type of filesystem */ 95 int f_flags; /* copy of mount exported flags */ 96 long f_syncwrites; /* count of sync writes since mount */ 97 long f_asyncwrites; /* count of async writes since mount */ 98 char f_fstypename[MFSNAMELEN]; /* fs type name */ 99 char f_mntonname[MNAMELEN]; /* directory on which mounted */ 100 long f_syncreads; /* count of sync reads since mount */ 101 long f_asyncreads; /* count of async reads since mount */ 102 short f_spares1; /* unused spare */ 103 char f_mntfromname[MNAMELEN];/* mounted filesystem */ 104 short f_spares2; /* unused spare */ 105 long f_spare[2]; /* unused spare */ 106}; 107 108#ifdef _KERNEL 109/* 110 * Structure per mounted filesystem. Each mounted filesystem has an 111 * array of operations and an instance record. The filesystems are 112 * put on a doubly linked list. 113 * 114 * NOTE: mnt_nvnodelist and mnt_reservedvnlist. At the moment vnodes 115 * are linked into mnt_nvnodelist. At some point in the near future the 116 * vnode list will be split into a 'dirty' and 'clean' list. mnt_nvnodelist 117 * will become the dirty list and mnt_reservedvnlist will become the 'clean' 118 * list. Filesystem kld's syncing code should remain compatible since 119 * they only need to scan the dirty vnode list (nvnodelist -> dirtyvnodelist). 120 */ 121TAILQ_HEAD(vnodelst, vnode); 122 123struct vfsoptlist { 124 struct vfsopt *opt; 125 unsigned int optcnt; 126 char *optbuf; 127}; 128 129struct vfsopt { 130 char *name; 131 void *value; 132 int len; 133}; 134 135struct mount { 136 TAILQ_ENTRY(mount) mnt_list; /* mount list */ 137 struct vfsops *mnt_op; /* operations on fs */ 138 struct vfsconf *mnt_vfc; /* configuration info */ 139 struct vnode *mnt_vnodecovered; /* vnode we mounted on */ 140 struct vnode *mnt_syncer; /* syncer vnode */ 141 struct vnodelst mnt_nvnodelist; /* list of vnodes this mount */ 142 struct vnodelst mnt_reservedvnlist; /* (future) dirty vnode list */ 143 struct lock mnt_lock; /* mount structure lock */ 144 int mnt_writeopcount; /* write syscalls in progress */ 145 int mnt_flag; /* flags shared with user */ 146 struct vfsoptlist *mnt_opt; /* current mount options */ 147 struct vfsoptlist *mnt_optnew; /* new options passed to fs */ 148 int mnt_kern_flag; /* kernel only flags */ 149 int mnt_maxsymlinklen; /* max size of short symlink */ 150 struct statfs mnt_stat; /* cache of filesystem stats */ 151 qaddr_t mnt_data; /* private data */ 152 time_t mnt_time; /* last time written*/ 153 u_int mnt_iosize_max; /* max IO request size */ 154 struct netexport *mnt_export; /* export list */ 155}; 156#endif /* _KERNEL */ 157 158/* 159 * User specifiable flags. 160 */ 161#define MNT_RDONLY 0x00000001 /* read only filesystem */ 162#define MNT_SYNCHRONOUS 0x00000002 /* filesystem written synchronously */ 163#define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */ 164#define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */ 165#define MNT_NODEV 0x00000010 /* don't interpret special files */ 166#define MNT_UNION 0x00000020 /* union with underlying filesystem */ 167#define MNT_ASYNC 0x00000040 /* filesystem written asynchronously */ 168#define MNT_SUIDDIR 0x00100000 /* special handling of SUID on dirs */ 169#define MNT_SOFTDEP 0x00200000 /* soft updates being done */ 170#define MNT_NOSYMFOLLOW 0x00400000 /* do not follow symlinks */ 171#define MNT_JAILDEVFS 0x02000000 /* Jail friendly DEVFS behaviour */ 172#define MNT_MULTILABEL 0x04000000 /* MAC support for individual objects */ 173#define MNT_NOATIME 0x10000000 /* disable update of file access time */ 174#define MNT_NOCLUSTERR 0x40000000 /* disable cluster read */ 175#define MNT_NOCLUSTERW 0x80000000 /* disable cluster write */ 176 177/* 178 * NFS export related mount flags. 179 */ 180#define MNT_EXRDONLY 0x00000080 /* exported read only */ 181#define MNT_EXPORTED 0x00000100 /* filesystem is exported */ 182#define MNT_DEFEXPORTED 0x00000200 /* exported to the world */ 183#define MNT_EXPORTANON 0x00000400 /* use anon uid mapping for everyone */ 184#define MNT_EXKERB 0x00000800 /* exported with Kerberos uid mapping */ 185#define MNT_EXPUBLIC 0x20000000 /* public export (WebNFS) */ 186 187/* 188 * Flags set by internal operations, 189 * but visible to the user. 190 * XXX some of these are not quite right.. (I've never seen the root flag set) 191 */ 192#define MNT_LOCAL 0x00001000 /* filesystem is stored locally */ 193#define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */ 194#define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */ 195#define MNT_USER 0x00008000 /* mounted by a user */ 196#define MNT_IGNORE 0x00800000 /* do not show entry in df */ 197 198/* 199 * Mask of flags that are visible to statfs() 200 * XXX I think that this could now become (~(MNT_CMDFLAGS)) 201 * but the 'mount' program may need changing to handle this. 202 */ 203#define MNT_VISFLAGMASK (MNT_RDONLY | MNT_SYNCHRONOUS | MNT_NOEXEC | \ 204 MNT_NOSUID | MNT_NODEV | MNT_UNION | \ 205 MNT_ASYNC | MNT_EXRDONLY | MNT_EXPORTED | \ 206 MNT_DEFEXPORTED | MNT_EXPORTANON| MNT_EXKERB | \ 207 MNT_LOCAL | MNT_USER | MNT_QUOTA | \ 208 MNT_ROOTFS | MNT_NOATIME | MNT_NOCLUSTERR| \ 209 MNT_NOCLUSTERW | MNT_SUIDDIR | MNT_SOFTDEP | \ 210 MNT_IGNORE | MNT_EXPUBLIC | MNT_NOSYMFOLLOW | \ 211 MNT_JAILDEVFS | MNT_MULTILABEL) 212 213/* Mask of flags that can be updated */ 214#define MNT_UPDATEMASK (MNT_NOSUID | MNT_NOEXEC | MNT_NODEV | \ 215 MNT_SYNCHRONOUS | MNT_UNION | MNT_ASYNC | \ 216 MNT_NOATIME | \ 217 MNT_NOSYMFOLLOW | MNT_IGNORE | MNT_JAILDEVFS | \ 218 MNT_NOCLUSTERR | MNT_NOCLUSTERW | MNT_SUIDDIR | \ 219 MNT_MULTILABEL) 220 221/* 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_SNAPSHOT 0x01000000 /* snapshot the filesystem */ 231#define MNT_CMDFLAGS (MNT_UPDATE | MNT_DELEXPORT | MNT_RELOAD | \ 232 MNT_FORCE | MNT_SNAPSHOT) 233/* 234 * Still available 235 */ 236#define MNT_SPARE3 0x08000000 237/* 238 * Internal filesystem control flags stored in mnt_kern_flag. 239 * 240 * MNTK_UNMOUNT locks the mount entry so that name lookup cannot proceed 241 * past the mount point. This keeps the subtree stable during mounts 242 * and unmounts. 243 * 244 * MNTK_UNMOUNTF permits filesystems to detect a forced unmount while 245 * dounmount() is still waiting to lock the mountpoint. This allows 246 * the filesystem to cancel operations that might otherwise deadlock 247 * with the unmount attempt (used by NFS). 248 */ 249#define MNTK_UNMOUNTF 0x00000001 /* forced unmount in progress */ 250#define MNTK_UNMOUNT 0x01000000 /* unmount in progress */ 251#define MNTK_MWAIT 0x02000000 /* waiting for unmount to finish */ 252#define MNTK_WANTRDWR 0x04000000 /* upgrade to read/write requested */ 253#define MNTK_SUSPEND 0x08000000 /* request write suspension */ 254#define MNTK_SUSPENDED 0x10000000 /* write operations are suspended */ 255 256/* 257 * Sysctl CTL_VFS definitions. 258 * 259 * Second level identifier specifies which filesystem. Second level 260 * identifier VFS_VFSCONF returns information about all filesystems. 261 * Second level identifier VFS_GENERIC is non-terminal. 262 */ 263#define VFS_VFSCONF 0 /* get configured filesystems */ 264#define VFS_GENERIC 0 /* generic filesystem information */ 265/* 266 * Third level identifiers for VFS_GENERIC are given below; third 267 * level identifiers for specific filesystems are given in their 268 * mount specific header files. 269 */ 270#define VFS_MAXTYPENUM 1 /* int: highest defined filesystem type */ 271#define VFS_CONF 2 /* struct: vfsconf for filesystem given 272 as next argument */ 273 274/* 275 * Flags for various system call interfaces. 276 * 277 * waitfor flags to vfs_sync() and getfsstat() 278 */ 279#define MNT_WAIT 1 /* synchronously wait for I/O to complete */ 280#define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */ 281#define MNT_LAZY 3 /* push data not written by filesystem syncer */ 282 283/* 284 * Generic file handle 285 */ 286struct fhandle { 287 fsid_t fh_fsid; /* File system id of mount point */ 288 struct fid fh_fid; /* File sys specific id */ 289}; 290typedef struct fhandle fhandle_t; 291 292/* 293 * Export arguments for local filesystem mount calls. 294 */ 295struct export_args { 296 int ex_flags; /* export related flags */ 297 uid_t ex_root; /* mapping for root uid */ 298 struct xucred ex_anon; /* mapping for anonymous user */ 299 struct sockaddr *ex_addr; /* net address to which exported */ 300 u_char ex_addrlen; /* and the net address length */ 301 struct sockaddr *ex_mask; /* mask of valid bits in saddr */ 302 u_char ex_masklen; /* and the smask length */ 303 char *ex_indexfile; /* index file for WebNFS URLs */ 304}; 305 306/* 307 * Structure holding information for a publicly exported filesystem 308 * (WebNFS). Currently the specs allow just for one such filesystem. 309 */ 310struct nfs_public { 311 int np_valid; /* Do we hold valid information */ 312 fhandle_t np_handle; /* Filehandle for pub fs (internal) */ 313 struct mount *np_mount; /* Mountpoint of exported fs */ 314 char *np_index; /* Index file */ 315}; 316 317/* 318 * Filesystem configuration information. One of these exists for each 319 * type of filesystem supported by the kernel. These are searched at 320 * mount time to identify the requested filesystem. 321 */ 322struct vfsconf { 323 struct vfsops *vfc_vfsops; /* filesystem operations vector */ 324 char vfc_name[MFSNAMELEN]; /* filesystem type name */ 325 int vfc_typenum; /* historic filesystem type number */ 326 int vfc_refcount; /* number mounted of this type */ 327 int vfc_flags; /* permanent flags */ 328 struct vfsconf *vfc_next; /* next in list */ 329}; 330 331struct ovfsconf { 332 void *vfc_vfsops; 333 char vfc_name[32]; 334 int vfc_index; 335 int vfc_refcount; 336 int vfc_flags; 337}; 338 339/* 340 * NB: these flags refer to IMPLEMENTATION properties, not properties of 341 * any actual mounts; i.e., it does not make sense to change the flags. 342 */ 343#define VFCF_STATIC 0x00010000 /* statically compiled into kernel */ 344#define VFCF_NETWORK 0x00020000 /* may get data over the network */ 345#define VFCF_READONLY 0x00040000 /* writes are not implemented */ 346#define VFCF_SYNTHETIC 0x00080000 /* data does not represent real files */ 347#define VFCF_LOOPBACK 0x00100000 /* aliases some other mounted FS */ 348#define VFCF_UNICODE 0x00200000 /* stores file names as Unicode*/ 349 350#ifdef _KERNEL 351 352#ifdef MALLOC_DECLARE 353MALLOC_DECLARE(M_MOUNT); 354#endif 355extern int maxvfsconf; /* highest defined filesystem type */ 356extern int nfs_mount_type; /* vfc_typenum for nfs, or -1 */ 357extern struct vfsconf *vfsconf; /* head of list of filesystem types */ 358 359/* 360 * Operations supported on mounted filesystem. 361 */ 362#ifdef __STDC__ 363struct nameidata; 364struct mbuf; 365struct mount_args; 366#endif 367 368struct vfsops { 369 int (*vfs_mount)(struct mount *mp, char *path, caddr_t data, 370 struct nameidata *ndp, struct thread *td); 371 int (*vfs_start)(struct mount *mp, int flags, struct thread *td); 372 int (*vfs_unmount)(struct mount *mp, int mntflags, 373 struct thread *td); 374 int (*vfs_root)(struct mount *mp, struct vnode **vpp); 375 int (*vfs_quotactl)(struct mount *mp, int cmds, uid_t uid, 376 caddr_t arg, struct thread *td); 377 int (*vfs_statfs)(struct mount *mp, struct statfs *sbp, 378 struct thread *td); 379 int (*vfs_sync)(struct mount *mp, int waitfor, struct ucred *cred, 380 struct thread *td); 381 int (*vfs_vget)(struct mount *mp, ino_t ino, int flags, 382 struct vnode **vpp); 383 int (*vfs_fhtovp)(struct mount *mp, struct fid *fhp, 384 struct vnode **vpp); 385 int (*vfs_checkexp)(struct mount *mp, struct sockaddr *nam, 386 int *extflagsp, struct ucred **credanonp); 387 int (*vfs_vptofh)(struct vnode *vp, struct fid *fhp); 388 int (*vfs_init)(struct vfsconf *); 389 int (*vfs_uninit)(struct vfsconf *); 390 int (*vfs_extattrctl)(struct mount *mp, int cmd, 391 struct vnode *filename_vp, int attrnamespace, 392 const char *attrname, struct thread *td); 393 /* additions below are not binary compatible with 5.0 and below */ 394 int (*vfs_nmount)(struct mount *mp, struct nameidata *ndp, 395 struct thread *td); 396}; 397 398#define VFS_NMOUNT(MP, NDP, P) (*(MP)->mnt_op->vfs_nmount)(MP, NDP, P) 399#define VFS_MOUNT(MP, PATH, DATA, NDP, P) \ 400 (*(MP)->mnt_op->vfs_mount)(MP, PATH, DATA, NDP, P) 401#define VFS_START(MP, FLAGS, P) (*(MP)->mnt_op->vfs_start)(MP, FLAGS, P) 402#define VFS_UNMOUNT(MP, FORCE, P) (*(MP)->mnt_op->vfs_unmount)(MP, FORCE, P) 403#define VFS_ROOT(MP, VPP) (*(MP)->mnt_op->vfs_root)(MP, VPP) 404#define VFS_QUOTACTL(MP,C,U,A,P) (*(MP)->mnt_op->vfs_quotactl)(MP, C, U, A, P) 405#define VFS_STATFS(MP, SBP, P) (*(MP)->mnt_op->vfs_statfs)(MP, SBP, P) 406#define VFS_SYNC(MP, WAIT, C, P) (*(MP)->mnt_op->vfs_sync)(MP, WAIT, C, P) 407#define VFS_VGET(MP, INO, FLAGS, VPP) \ 408 (*(MP)->mnt_op->vfs_vget)(MP, INO, FLAGS, VPP) 409#define VFS_FHTOVP(MP, FIDP, VPP) \ 410 (*(MP)->mnt_op->vfs_fhtovp)(MP, FIDP, VPP) 411#define VFS_VPTOFH(VP, FIDP) (*(VP)->v_mount->mnt_op->vfs_vptofh)(VP, FIDP) 412#define VFS_CHECKEXP(MP, NAM, EXFLG, CRED) \ 413 (*(MP)->mnt_op->vfs_checkexp)(MP, NAM, EXFLG, CRED) 414#define VFS_EXTATTRCTL(MP, C, FN, NS, N, P) \ 415 (*(MP)->mnt_op->vfs_extattrctl)(MP, C, FN, NS, N, P) 416 417#include <sys/module.h> 418 419#define VFS_SET(vfsops, fsname, flags) \ 420 static struct vfsconf fsname ## _vfsconf = { \ 421 &vfsops, \ 422 #fsname, \ 423 -1, \ 424 0, \ 425 flags \ 426 }; \ 427 static moduledata_t fsname ## _mod = { \ 428 #fsname, \ 429 vfs_modevent, \ 430 & fsname ## _vfsconf \ 431 }; \ 432 DECLARE_MODULE(fsname, fsname ## _mod, SI_SUB_VFS, SI_ORDER_MIDDLE) 433 434extern char *mountrootfsname; 435 436/* 437 * exported vnode operations 438 */ 439int dounmount(struct mount *, int, struct thread *td); 440int kernel_mount(struct iovec *iovp, unsigned int iovcnt, int flags); 441int kernel_vmount(int flags, ...); 442int vfs_getopt(struct vfsoptlist *, const char *, void **, int *); 443int vfs_copyopt(struct vfsoptlist *, const char *, void *, int); 444int vfs_mount(struct thread *td, const char *type, char *path, 445 int flags, void *data); 446int vfs_setpublicfs /* set publicly exported fs */ 447 (struct mount *, struct netexport *, struct export_args *); 448int vfs_lock(struct mount *); /* lock a vfs */ 449void vfs_msync(struct mount *, int); 450void vfs_unlock(struct mount *); /* unlock a vfs */ 451int vfs_busy(struct mount *, int, struct mtx *, struct thread *td); 452int vfs_export /* process mount export info */ 453 (struct mount *, struct export_args *); 454struct netcred *vfs_export_lookup /* lookup host in fs export list */ 455 (struct mount *, struct sockaddr *); 456int vfs_allocate_syncvnode(struct mount *); 457void vfs_getnewfsid(struct mount *); 458dev_t vfs_getrootfsid(struct mount *); 459struct mount *vfs_getvfs(fsid_t *); /* return vfs given fsid */ 460int vfs_modevent(module_t, int, void *); 461int vfs_mountedon(struct vnode *); /* is a vfs mounted on vp */ 462void vfs_mountroot(void *); /* mount our root filesystem */ 463int vfs_rootmountalloc(char *, char *, struct mount **); 464void vfs_unbusy(struct mount *, struct thread *td); 465void vfs_unmountall(void); 466int vfs_register(struct vfsconf *); 467int vfs_unregister(struct vfsconf *); 468extern TAILQ_HEAD(mntlist, mount) mountlist; /* mounted filesystem list */ 469extern struct mtx mountlist_mtx; 470extern struct nfs_public nfs_pub; 471 472/* 473 * Declarations for these vfs default operations are located in 474 * kern/vfs_default.c, they should be used instead of making "dummy" 475 * functions or casting entries in the VFS op table to "enopnotsupp()". 476 */ 477int vfs_stdmount(struct mount *mp, char *path, caddr_t data, 478 struct nameidata *ndp, struct thread *td); 479int vfs_stdstart(struct mount *mp, int flags, struct thread *td); 480int vfs_stdunmount(struct mount *mp, int mntflags, struct thread *td); 481int vfs_stdroot(struct mount *mp, struct vnode **vpp); 482int vfs_stdquotactl(struct mount *mp, int cmds, uid_t uid, 483 caddr_t arg, struct thread *td); 484int vfs_stdstatfs(struct mount *mp, struct statfs *sbp, struct thread *td); 485int vfs_stdsync(struct mount *mp, int waitfor, struct ucred *cred, 486 struct thread *td); 487int vfs_stdvget(struct mount *mp, ino_t ino, int, struct vnode **vpp); 488int vfs_stdfhtovp(struct mount *mp, struct fid *fhp, struct vnode **vpp); 489int vfs_stdcheckexp(struct mount *mp, struct sockaddr *nam, 490 int *extflagsp, struct ucred **credanonp); 491int vfs_stdvptofh(struct vnode *vp, struct fid *fhp); 492int vfs_stdinit(struct vfsconf *); 493int vfs_stduninit(struct vfsconf *); 494int vfs_stdextattrctl(struct mount *mp, int cmd, 495 struct vnode *filename_vp, int attrnamespace, const char *attrname, 496 struct thread *td); 497 498/* XXX - these should be indirect functions!!! */ 499int softdep_process_worklist(struct mount *); 500int softdep_fsync(struct vnode *); 501#else /* !_KERNEL */ 502 503#include <sys/cdefs.h> 504 505struct stat; 506 507__BEGIN_DECLS 508int fhopen(const struct fhandle *, int); 509int fhstat(const struct fhandle *, struct stat *); 510int fhstatfs(const struct fhandle *, struct statfs *); 511int fstatfs(int, struct statfs *); 512int getfh(const char *, fhandle_t *); 513int getfsstat(struct statfs *, long, int); 514int getmntinfo(struct statfs **, int); 515int nmount(struct iovec *, unsigned int, int); 516int mount(const char *, const char *, int, void *); 517int statfs(const char *, struct statfs *); 518int unmount(const char *, int); 519 520/* C library stuff */ 521void endvfsent(void); 522struct ovfsconf *getvfsbyname(const char *); 523struct ovfsconf *getvfsbytype(int); 524struct ovfsconf *getvfsent(void); 525#define getvfsbyname new_getvfsbyname 526int new_getvfsbyname(const char *, struct vfsconf *); 527void setvfsent(int); 528int vfsisloadable(const char *); 529int vfsload(const char *); 530__END_DECLS 531 532#endif /* _KERNEL */ 533 534#endif /* !_SYS_MOUNT_H_ */ 535