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 $ 35 * $DragonFly: src/sys/sys/mount.h,v 1.16 2004/12/29 02:40:03 dillon Exp $ 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 54 struct thread; 55 struct journal; 56 struct vop_ops; 57 struct vop_mountctl_args; 58 59 typedef 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 67 struct 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 */ 78 #define MNAMELEN 80 /* length of buffer for returned name */ 79 80 struct 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 }; 104 105 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 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). 117 * 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 * 125 * NOTE: Any vnode marked VPLACEMARKER is a placemarker and should ALWAYS BE 126 * SKIPPED. NO OTHER FIELDS IN SUCH VNODES ARE VALID. 127 * 128 * NOTE: All VFSs must at least populate mnt_vn_ops or those VOP ops that 129 * only take namecache pointers will not be able to find their operations 130 * vector via namecache->nc_mount. 131 */ 132 TAILQ_HEAD(vnodelst, vnode); 133 TAILQ_HEAD(journallst, journal); 134 135 struct 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 lock mnt_lock; /* mount structure lock */ 143 int mnt_flag; /* flags shared with user */ 144 int mnt_kern_flag; /* kernel only flags */ 145 int mnt_maxsymlinklen; /* max size of short symlink */ 146 struct statfs mnt_stat; /* cache of filesystem stats */ 147 qaddr_t mnt_data; /* private data */ 148 time_t mnt_time; /* last time written*/ 149 u_int mnt_iosize_max; /* max IO request size */ 150 struct vnodelst mnt_reservedvnlist; /* (future) dirty vnode list */ 151 int mnt_nvnodelistsize; /* # of vnodes on this mount */ 152 153 /* 154 * ops vectors have a fixed stacking order. All primary calls run 155 * through mnt_vn_ops. This field is typically assigned to 156 * mnt_vn_norm_ops. If journaling has been enabled this field is 157 * usually assigned to mnt_vn_journal_ops. 158 */ 159 struct vop_ops *mnt_vn_use_ops; /* current ops set */ 160 161 struct vop_ops *mnt_vn_coherency_ops; /* cache coherency ops */ 162 struct vop_ops *mnt_vn_journal_ops; /* journaling ops */ 163 struct vop_ops *mnt_vn_norm_ops; /* for use by the VFS */ 164 struct vop_ops *mnt_vn_spec_ops; /* for use by the VFS */ 165 struct vop_ops *mnt_vn_fifo_ops; /* for use by the VFS */ 166 struct namecache *mnt_ncp; /* NCF_MNTPT ncp */ 167 168 struct journallst mnt_jlist; /* list of active journals */ 169 }; 170 171 #endif /* _KERNEL || _KERNEL_STRUCTURES */ 172 173 /* 174 * User specifiable flags. 175 */ 176 #define MNT_RDONLY 0x00000001 /* read only filesystem */ 177 #define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */ 178 #define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */ 179 #define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */ 180 #define MNT_NODEV 0x00000010 /* don't interpret special files */ 181 #define MNT_UNION 0x00000020 /* union with underlying filesystem */ 182 #define MNT_ASYNC 0x00000040 /* file system written asynchronously */ 183 #define MNT_SUIDDIR 0x00100000 /* special handling of SUID on dirs */ 184 #define MNT_SOFTDEP 0x00200000 /* soft updates being done */ 185 #define MNT_NOSYMFOLLOW 0x00400000 /* do not follow symlinks */ 186 #define MNT_NOATIME 0x10000000 /* disable update of file access time */ 187 #define MNT_NOCLUSTERR 0x40000000 /* disable cluster read */ 188 #define MNT_NOCLUSTERW 0x80000000 /* disable cluster write */ 189 190 /* 191 * NFS export related mount flags. 192 */ 193 #define MNT_EXRDONLY 0x00000080 /* exported read only */ 194 #define MNT_EXPORTED 0x00000100 /* file system is exported */ 195 #define MNT_DEFEXPORTED 0x00000200 /* exported to the world */ 196 #define MNT_EXPORTANON 0x00000400 /* use anon uid mapping for everyone */ 197 #define MNT_EXKERB 0x00000800 /* exported with Kerberos uid mapping */ 198 #define MNT_EXPUBLIC 0x20000000 /* public export (WebNFS) */ 199 200 /* 201 * Flags set by internal operations, 202 * but visible to the user. 203 * XXX some of these are not quite right.. (I've never seen the root flag set) 204 */ 205 #define MNT_LOCAL 0x00001000 /* filesystem is stored locally */ 206 #define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */ 207 #define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */ 208 #define MNT_USER 0x00008000 /* mounted by a user */ 209 #define MNT_IGNORE 0x00800000 /* do not show entry in df */ 210 211 /* 212 * Mask of flags that are visible to statfs() 213 * XXX I think that this could now become (~(MNT_CMDFLAGS)) 214 * but the 'mount' program may need changing to handle this. 215 */ 216 #define MNT_VISFLAGMASK (MNT_RDONLY | MNT_SYNCHRONOUS | MNT_NOEXEC | \ 217 MNT_NOSUID | MNT_NODEV | MNT_UNION | \ 218 MNT_ASYNC | MNT_EXRDONLY | MNT_EXPORTED | \ 219 MNT_DEFEXPORTED | MNT_EXPORTANON| MNT_EXKERB | \ 220 MNT_LOCAL | MNT_USER | MNT_QUOTA | \ 221 MNT_ROOTFS | MNT_NOATIME | MNT_NOCLUSTERR| \ 222 MNT_NOCLUSTERW | MNT_SUIDDIR | MNT_SOFTDEP | \ 223 MNT_IGNORE | MNT_NOSYMFOLLOW | MNT_EXPUBLIC ) 224 /* 225 * External filesystem command modifier flags. 226 * Unmount can use the MNT_FORCE flag. 227 * XXX These are not STATES and really should be somewhere else. 228 */ 229 #define MNT_UPDATE 0x00010000 /* not a real mount, just an update */ 230 #define MNT_DELEXPORT 0x00020000 /* delete export host lists */ 231 #define MNT_RELOAD 0x00040000 /* reload filesystem data */ 232 #define MNT_FORCE 0x00080000 /* force unmount or readonly change */ 233 #define MNT_CMDFLAGS (MNT_UPDATE|MNT_DELEXPORT|MNT_RELOAD|MNT_FORCE) 234 /* 235 * Internal filesystem control flags stored in mnt_kern_flag. 236 * 237 * MNTK_UNMOUNT locks the mount entry so that name lookup cannot proceed 238 * past the mount point. This keeps the subtree stable during mounts 239 * and unmounts. 240 * 241 * MNTK_UNMOUNTF permits filesystems to detect a forced unmount while 242 * dounmount() is still waiting to lock the mountpoint. This allows 243 * the filesystem to cancel operations that might otherwise deadlock 244 * with the unmount attempt (used by NFS). 245 */ 246 #define MNTK_UNMOUNTF 0x00000001 /* forced unmount in progress */ 247 #define MNTK_UNMOUNT 0x01000000 /* unmount in progress */ 248 #define MNTK_MWAIT 0x02000000 /* waiting for unmount to finish */ 249 #define MNTK_WANTRDWR 0x04000000 /* upgrade to read/write requested */ 250 251 /* 252 * Sysctl CTL_VFS definitions. 253 * 254 * Second level identifier specifies which filesystem. Second level 255 * identifier VFS_VFSCONF returns information about all filesystems. 256 * Second level identifier VFS_GENERIC is non-terminal. 257 */ 258 #define VFS_VFSCONF 0 /* get configured filesystems */ 259 #define VFS_GENERIC 0 /* generic filesystem information */ 260 /* 261 * Third level identifiers for VFS_GENERIC are given below; third 262 * level identifiers for specific filesystems are given in their 263 * mount specific header files. 264 */ 265 #define VFS_MAXTYPENUM 1 /* int: highest defined filesystem type */ 266 #define VFS_CONF 2 /* struct: vfsconf for filesystem given 267 as next argument */ 268 269 /* 270 * Flags for various system call interfaces. 271 * 272 * waitfor flags to vfs_sync() and getfsstat() 273 */ 274 #define MNT_WAIT 1 /* synchronously wait for I/O to complete */ 275 #define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */ 276 #define MNT_LAZY 3 /* push data not written by filesystem syncer */ 277 278 /* 279 * Generic file handle 280 */ 281 struct fhandle { 282 fsid_t fh_fsid; /* File system id of mount point */ 283 struct fid fh_fid; /* File sys specific id */ 284 }; 285 typedef struct fhandle fhandle_t; 286 287 /* 288 * Export arguments for local filesystem mount calls. 289 */ 290 struct export_args { 291 int ex_flags; /* export related flags */ 292 uid_t ex_root; /* mapping for root uid */ 293 struct ucred ex_anon; /* mapping for anonymous user */ 294 struct sockaddr *ex_addr; /* net address to which exported */ 295 int ex_addrlen; /* and the net address length */ 296 struct sockaddr *ex_mask; /* mask of valid bits in saddr */ 297 int ex_masklen; /* and the smask length */ 298 char *ex_indexfile; /* index file for WebNFS URLs */ 299 }; 300 301 /* 302 * Structure holding information for a publicly exported filesystem 303 * (WebNFS). Currently the specs allow just for one such filesystem. 304 */ 305 struct nfs_public { 306 int np_valid; /* Do we hold valid information */ 307 fhandle_t np_handle; /* Filehandle for pub fs (internal) */ 308 struct mount *np_mount; /* Mountpoint of exported fs */ 309 char *np_index; /* Index file */ 310 }; 311 312 /* 313 * Filesystem configuration information. One of these exists for each 314 * type of filesystem supported by the kernel. These are searched at 315 * mount time to identify the requested filesystem. 316 */ 317 struct vfsconf { 318 struct vfsops *vfc_vfsops; /* filesystem operations vector */ 319 char vfc_name[MFSNAMELEN]; /* filesystem type name */ 320 int vfc_typenum; /* historic filesystem type number */ 321 int vfc_refcount; /* number mounted of this type */ 322 int vfc_flags; /* permanent flags */ 323 struct vfsconf *vfc_next; /* next in list */ 324 }; 325 326 struct ovfsconf { 327 void *vfc_vfsops; 328 char vfc_name[32]; 329 int vfc_index; 330 int vfc_refcount; 331 int vfc_flags; 332 }; 333 334 /* 335 * NB: these flags refer to IMPLEMENTATION properties, not properties of 336 * any actual mounts; i.e., it does not make sense to change the flags. 337 */ 338 #define VFCF_STATIC 0x00010000 /* statically compiled into kernel */ 339 #define VFCF_NETWORK 0x00020000 /* may get data over the network */ 340 #define VFCF_READONLY 0x00040000 /* writes are not implemented */ 341 #define VFCF_SYNTHETIC 0x00080000 /* data does not represent real files */ 342 #define VFCF_LOOPBACK 0x00100000 /* aliases some other mounted FS */ 343 #define VFCF_UNICODE 0x00200000 /* stores file names as Unicode*/ 344 345 #ifdef _KERNEL 346 347 #ifdef MALLOC_DECLARE 348 MALLOC_DECLARE(M_MOUNT); 349 #endif 350 extern int maxvfsconf; /* highest defined filesystem type */ 351 extern int nfs_mount_type; /* vfc_typenum for nfs, or -1 */ 352 extern struct vfsconf *vfsconf; /* head of list of filesystem types */ 353 354 #endif 355 356 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 357 358 TAILQ_HEAD(mntlist, mount); /* struct mntlist */ 359 360 /* 361 * Operations supported on mounted file system. 362 */ 363 #ifdef __STDC__ 364 struct nlookupdata; 365 struct nlookupdata; 366 struct mbuf; 367 #endif 368 369 struct vfsops { 370 int (*vfs_mount) (struct mount *mp, char *path, caddr_t data, 371 struct thread *td); 372 int (*vfs_start) (struct mount *mp, int flags, 373 struct thread *td); 374 int (*vfs_unmount) (struct mount *mp, int mntflags, 375 struct thread *td); 376 int (*vfs_root) (struct mount *mp, struct vnode **vpp); 377 int (*vfs_quotactl) (struct mount *mp, int cmds, uid_t uid, 378 caddr_t arg, struct thread *td); 379 int (*vfs_statfs) (struct mount *mp, struct statfs *sbp, 380 struct thread *td); 381 int (*vfs_sync) (struct mount *mp, int waitfor, 382 struct thread *td); 383 int (*vfs_vget) (struct mount *mp, ino_t ino, 384 struct vnode **vpp); 385 int (*vfs_fhtovp) (struct mount *mp, struct fid *fhp, 386 struct vnode **vpp); 387 int (*vfs_checkexp) (struct mount *mp, struct sockaddr *nam, 388 int *extflagsp, struct ucred **credanonp); 389 int (*vfs_vptofh) (struct vnode *vp, struct fid *fhp); 390 int (*vfs_init) (struct vfsconf *); 391 int (*vfs_uninit) (struct vfsconf *); 392 int (*vfs_extattrctl) (struct mount *mp, int cmd, 393 const char *attrname, caddr_t arg, 394 struct thread *td); 395 }; 396 397 #define VFS_MOUNT(MP, PATH, DATA, P) \ 398 (*(MP)->mnt_op->vfs_mount)(MP, PATH, DATA, P) 399 #define VFS_START(MP, FLAGS, P) (*(MP)->mnt_op->vfs_start)(MP, FLAGS, P) 400 #define VFS_UNMOUNT(MP, FORCE, P) (*(MP)->mnt_op->vfs_unmount)(MP, FORCE, P) 401 #define VFS_ROOT(MP, VPP) (*(MP)->mnt_op->vfs_root)(MP, VPP) 402 #define VFS_QUOTACTL(MP,C,U,A,P) (*(MP)->mnt_op->vfs_quotactl)(MP, C, U, A, P) 403 #define VFS_STATFS(MP, SBP, P) (*(MP)->mnt_op->vfs_statfs)(MP, SBP, P) 404 #define VFS_SYNC(MP, WAIT, P) (*(MP)->mnt_op->vfs_sync)(MP, WAIT, P) 405 #define VFS_VGET(MP, INO, VPP) (*(MP)->mnt_op->vfs_vget)(MP, INO, VPP) 406 #define VFS_FHTOVP(MP, FIDP, VPP) \ 407 (*(MP)->mnt_op->vfs_fhtovp)(MP, FIDP, VPP) 408 #define VFS_VPTOFH(VP, FIDP) (*(VP)->v_mount->mnt_op->vfs_vptofh)(VP, FIDP) 409 #define VFS_CHECKEXP(MP, NAM, EXFLG, CRED) \ 410 (*(MP)->mnt_op->vfs_checkexp)(MP, NAM, EXFLG, CRED) 411 #define VFS_EXTATTRCTL(MP, C, N, A, P) \ 412 (*(MP)->mnt_op->vfs_extattrctl)(MP, C, N, A, P) 413 414 #endif 415 416 #ifdef _KERNEL 417 418 #include <sys/module.h> 419 420 #define VFS_SET(vfsops, fsname, flags) \ 421 static struct vfsconf fsname ## _vfsconf = { \ 422 &vfsops, \ 423 #fsname, \ 424 -1, \ 425 0, \ 426 flags, \ 427 NULL \ 428 }; \ 429 static moduledata_t fsname ## _mod = { \ 430 #fsname, \ 431 vfs_modevent, \ 432 & fsname ## _vfsconf \ 433 }; \ 434 DECLARE_MODULE(fsname, fsname ## _mod, SI_SUB_VFS, SI_ORDER_MIDDLE) 435 436 #endif 437 438 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 439 440 #include <net/radix.h> 441 442 #define AF_MAX 33 /* XXX */ 443 444 /* 445 * Network address lookup element 446 */ 447 struct netcred { 448 struct radix_node netc_rnodes[2]; 449 int netc_exflags; 450 struct ucred netc_anon; 451 }; 452 453 /* 454 * Network export information 455 */ 456 struct netexport { 457 struct netcred ne_defexported; /* Default export */ 458 struct radix_node_head *ne_rtable[AF_MAX+1]; /* Individual exports */ 459 }; 460 461 #endif 462 463 #ifdef _KERNEL 464 465 extern char *mountrootfsname; 466 467 /* 468 * exported vnode operations 469 */ 470 int dounmount (struct mount *, int, struct thread *); 471 int vfs_setpublicfs /* set publicly exported fs */ 472 (struct mount *, struct netexport *, struct export_args *); 473 int vfs_lock (struct mount *); /* lock a vfs */ 474 void vfs_msync (struct mount *, int); 475 void vfs_unlock (struct mount *); /* unlock a vfs */ 476 int vfs_busy (struct mount *, int, struct lwkt_tokref *, struct thread *); 477 void vfs_bufstats(void); 478 int vfs_export /* process mount export info */ 479 (struct mount *, struct netexport *, struct export_args *); 480 struct netcred *vfs_export_lookup /* lookup host in fs export list */ 481 (struct mount *, struct netexport *, struct sockaddr *); 482 int vfs_allocate_syncvnode (struct mount *); 483 void vfs_getnewfsid (struct mount *); 484 dev_t vfs_getrootfsid (struct mount *); 485 struct mount *vfs_getvfs (fsid_t *); /* return vfs given fsid */ 486 int vfs_modevent (module_t, int, void *); 487 int vfs_mountedon (struct vnode *); /* is a vfs mounted on vp */ 488 int vfs_rootmountalloc (char *, char *, struct mount **); 489 void vfs_unbusy (struct mount *, struct thread *); 490 void vfs_unmountall (void); 491 int vfs_register (struct vfsconf *); 492 int vfs_unregister (struct vfsconf *); 493 extern struct mntlist mountlist; /* mounted filesystem list */ 494 extern struct lwkt_token mountlist_token; 495 extern struct nfs_public nfs_pub; 496 497 /* 498 * Declarations for these vfs default operations are located in 499 * kern/vfs_default.c, they should be used instead of making "dummy" 500 * functions or casting entries in the VFS op table to "enopnotsupp()". 501 */ 502 int vfs_stdmount (struct mount *mp, char *path, caddr_t data, 503 struct nlookupdata *ndp, struct thread *p); 504 int vfs_stdstart (struct mount *mp, int flags, struct thread *p); 505 int vfs_stdunmount (struct mount *mp, int mntflags, struct thread *p); 506 int vfs_stdroot (struct mount *mp, struct vnode **vpp); 507 int vfs_stdquotactl (struct mount *mp, int cmds, uid_t uid, 508 caddr_t arg, struct thread *p); 509 int vfs_stdstatfs (struct mount *mp, struct statfs *sbp, struct thread *p); 510 int vfs_stdsync (struct mount *mp, int waitfor, struct thread *td); 511 int vfs_stdvget (struct mount *mp, ino_t ino, struct vnode **vpp); 512 int vfs_stdfhtovp (struct mount *mp, struct fid *fhp, struct vnode **vpp); 513 int vfs_stdcheckexp (struct mount *mp, struct sockaddr *nam, 514 int *extflagsp, struct ucred **credanonp); 515 int vfs_stdvptofh (struct vnode *vp, struct fid *fhp); 516 int vfs_stdinit (struct vfsconf *); 517 int vfs_stduninit (struct vfsconf *); 518 int vfs_stdextattrctl (struct mount *mp, int cmd, const char *attrname, 519 caddr_t arg, struct thread *p); 520 int journal_mountctl(struct vop_mountctl_args *ap); 521 522 #else /* !_KERNEL */ 523 524 #include <sys/cdefs.h> 525 526 __BEGIN_DECLS 527 int fstatfs (int, struct statfs *); 528 int getfh (const char *, fhandle_t *); 529 int getfsstat (struct statfs *, long, int); 530 int getmntinfo (struct statfs **, int); 531 int mount (const char *, const char *, int, void *); 532 int statfs (const char *, struct statfs *); 533 int unmount (const char *, int); 534 int fhopen (const struct fhandle *, int); 535 int fhstat (const struct fhandle *, struct stat *); 536 int fhstatfs (const struct fhandle *, struct statfs *); 537 538 /* C library stuff */ 539 void endvfsent (void); 540 struct ovfsconf *getvfsbyname (const char *); 541 struct ovfsconf *getvfsbytype (int); 542 struct ovfsconf *getvfsent (void); 543 #define getvfsbyname new_getvfsbyname 544 int new_getvfsbyname (const char *, struct vfsconf *); 545 void setvfsent (int); 546 int vfsisloadable (const char *); 547 int vfsload (const char *); 548 __END_DECLS 549 550 #endif /* _KERNEL */ 551 552 #endif /* !_SYS_MOUNT_H_ */ 553 554