mount.h revision 85339
1241149Sdteske/* 2241149Sdteske * Copyright (c) 1989, 1991, 1993 3252797Sdteske * The Regents of the University of California. All rights reserved. 4241149Sdteske * 5241149Sdteske * Redistribution and use in source and binary forms, with or without 6241149Sdteske * modification, are permitted provided that the following conditions 7241149Sdteske * are met: 8241149Sdteske * 1. Redistributions of source code must retain the above copyright 9241149Sdteske * notice, this list of conditions and the following disclaimer. 10241149Sdteske * 2. Redistributions in binary form must reproduce the above copyright 11241149Sdteske * notice, this list of conditions and the following disclaimer in the 12241149Sdteske * documentation and/or other materials provided with the distribution. 13241149Sdteske * 3. All advertising materials mentioning features or use of this software 14241149Sdteske * must display the following acknowledgement: 15241149Sdteske * This product includes software developed by the University of 16252987Sdteske * California, Berkeley and its contributors. 17241149Sdteske * 4. Neither the name of the University nor the names of its contributors 18241149Sdteske * may be used to endorse or promote products derived from this software 19241149Sdteske * without specific prior written permission. 20241149Sdteske * 21241149Sdteske * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22241149Sdteske * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23241149Sdteske * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24241149Sdteske * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25241149Sdteske * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26241149Sdteske * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27241149Sdteske * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28241149Sdteske * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29241149Sdteske * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30241149Sdteske * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31241149Sdteske * SUCH DAMAGE. 32241149Sdteske * 33241149Sdteske * @(#)mount.h 8.21 (Berkeley) 5/20/95 34241149Sdteske * $FreeBSD: head/sys/sys/mount.h 85339 2001-10-23 01:21:29Z dillon $ 35241149Sdteske */ 36241149Sdteske 37241149Sdteske#ifndef _SYS_MOUNT_H_ 38241149Sdteske#define _SYS_MOUNT_H_ 39241149Sdteske 40241149Sdteske/* 41241149Sdteske * XXX - compatability until lockmgr() goes away or all the #includes are 42241149Sdteske * updated. 43241149Sdteske */ 44241149Sdteske#include <sys/lockmgr.h> 45241149Sdteske 46241149Sdteske#include <sys/ucred.h> 47241149Sdteske#include <sys/queue.h> 48241149Sdteske#ifdef _KERNEL 49241149Sdteske#include <sys/_lock.h> 50241149Sdteske#include <sys/_mutex.h> 51252797Sdteske#endif 52241149Sdteske 53241149Sdteskestruct netcred; 54241149Sdteskestruct netexport; 55241149Sdteske 56241149Sdtesketypedef struct fsid { int32_t val[2]; } fsid_t; /* file system id type */ 57241149Sdteske 58241149Sdteske/* 59241149Sdteske * File identifier. 60241149Sdteske * These are unique per filesystem on a single machine. 61241149Sdteske */ 62241149Sdteske#define MAXFIDSZ 16 63241149Sdteske 64241149Sdteskestruct fid { 65241149Sdteske u_short fid_len; /* length of data in bytes */ 66241149Sdteske u_short fid_reserved; /* force longword alignment */ 67241149Sdteske char fid_data[MAXFIDSZ]; /* data (variable length) */ 68241149Sdteske}; 69241149Sdteske 70241149Sdteske/* 71241149Sdteske * file system statistics 72241149Sdteske */ 73241149Sdteske 74241149Sdteske#define MFSNAMELEN 16 /* length of fs type name, including null */ 75241149Sdteske#if defined(__i386__) || defined(__powerpc__) 76241149Sdteske#define MNAMELEN 80 /* length of buffer for returned name */ 77241149Sdteske#endif 78241149Sdteske#if defined(__alpha__) || defined(__ia64__) || defined(__sparc64__) 79241149Sdteske#define MNAMELEN 72 /* length of buffer for returned name */ 80241149Sdteske#endif 81241149Sdteske 82241149Sdteskestruct statfs { 83241149Sdteske long f_spare2; /* placeholder */ 84241149Sdteske long f_bsize; /* fundamental file system block size */ 85241149Sdteske long f_iosize; /* optimal transfer block size */ 86241149Sdteske long f_blocks; /* total data blocks in file system */ 87241149Sdteske long f_bfree; /* free blocks in fs */ 88241149Sdteske long f_bavail; /* free blocks avail to non-superuser */ 89241149Sdteske long f_files; /* total file nodes in file system */ 90241149Sdteske long f_ffree; /* free file nodes in fs */ 91241149Sdteske fsid_t f_fsid; /* file system id */ 92241149Sdteske uid_t f_owner; /* user that mounted the filesystem */ 93241149Sdteske int f_type; /* type of filesystem */ 94241149Sdteske int f_flags; /* copy of mount exported flags */ 95241149Sdteske long f_syncwrites; /* count of sync writes since mount */ 96241149Sdteske long f_asyncwrites; /* count of async writes since mount */ 97241149Sdteske char f_fstypename[MFSNAMELEN]; /* fs type name */ 98241149Sdteske char f_mntonname[MNAMELEN]; /* directory on which mounted */ 99241149Sdteske long f_syncreads; /* count of sync reads since mount */ 100241149Sdteske long f_asyncreads; /* count of async reads since mount */ 101241149Sdteske short f_spares1; /* unused spare */ 102241149Sdteske char f_mntfromname[MNAMELEN];/* mounted filesystem */ 103241149Sdteske short f_spares2; /* unused spare */ 104241149Sdteske long f_spare[2]; /* unused spare */ 105241149Sdteske}; 106241149Sdteske 107241149Sdteske#ifdef _KERNEL 108241149Sdteske/* 109241149Sdteske * Structure per mounted file system. Each mounted file system has an 110241149Sdteske * array of operations and an instance record. The file systems are 111241149Sdteske * put on a doubly linked list. 112241149Sdteske */ 113241149SdteskeTAILQ_HEAD(vnodelst, vnode); 114241149Sdteske 115241149Sdteskestruct mount { 116241149Sdteske TAILQ_ENTRY(mount) mnt_list; /* mount list */ 117241149Sdteske struct vfsops *mnt_op; /* operations on fs */ 118241149Sdteske struct vfsconf *mnt_vfc; /* configuration info */ 119241149Sdteske struct vnode *mnt_vnodecovered; /* vnode we mounted on */ 120241149Sdteske struct vnode *mnt_syncer; /* syncer vnode */ 121241149Sdteske struct vnodelst mnt_nvnodelist; /* list of vnodes this mount */ 122241149Sdteske struct lock mnt_lock; /* mount structure lock */ 123241149Sdteske int mnt_writeopcount; /* write syscalls in progress */ 124241149Sdteske int mnt_flag; /* flags shared with user */ 125241149Sdteske int mnt_kern_flag; /* kernel only flags */ 126241149Sdteske int mnt_maxsymlinklen; /* max size of short symlink */ 127241149Sdteske struct statfs mnt_stat; /* cache of filesystem stats */ 128241149Sdteske qaddr_t mnt_data; /* private data */ 129241149Sdteske time_t mnt_time; /* last time written*/ 130241149Sdteske u_int mnt_iosize_max; /* max IO request size */ 131241149Sdteske struct netexport *mnt_export; /* export list */ 132241149Sdteske}; 133241149Sdteske#endif /* _KERNEL */ 134241149Sdteske 135241149Sdteske/* 136241149Sdteske * User specifiable flags. 137241149Sdteske */ 138241149Sdteske#define MNT_RDONLY 0x00000001 /* read only filesystem */ 139241149Sdteske#define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */ 140241149Sdteske#define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */ 141241149Sdteske#define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */ 142241149Sdteske#define MNT_NODEV 0x00000010 /* don't interpret special files */ 143241149Sdteske#define MNT_UNION 0x00000020 /* union with underlying filesystem */ 144241149Sdteske#define MNT_ASYNC 0x00000040 /* file system written asynchronously */ 145241149Sdteske#define MNT_SUIDDIR 0x00100000 /* special handling of SUID on dirs */ 146241149Sdteske#define MNT_SOFTDEP 0x00200000 /* soft updates being done */ 147241149Sdteske#define MNT_NOSYMFOLLOW 0x00400000 /* do not follow symlinks */ 148241149Sdteske#define MNT_NOATIME 0x10000000 /* disable update of file access time */ 149241149Sdteske#define MNT_NOCLUSTERR 0x40000000 /* disable cluster read */ 150241149Sdteske#define MNT_NOCLUSTERW 0x80000000 /* disable cluster write */ 151241149Sdteske 152241149Sdteske/* 153241149Sdteske * NFS export related mount flags. 154241149Sdteske */ 155241149Sdteske#define MNT_EXRDONLY 0x00000080 /* exported read only */ 156241149Sdteske#define MNT_EXPORTED 0x00000100 /* file system is exported */ 157241149Sdteske#define MNT_DEFEXPORTED 0x00000200 /* exported to the world */ 158241149Sdteske#define MNT_EXPORTANON 0x00000400 /* use anon uid mapping for everyone */ 159241149Sdteske#define MNT_EXKERB 0x00000800 /* exported with Kerberos uid mapping */ 160241149Sdteske#define MNT_EXPUBLIC 0x20000000 /* public export (WebNFS) */ 161241149Sdteske 162241149Sdteske/* 163241149Sdteske * Flags set by internal operations, 164241149Sdteske * but visible to the user. 165241149Sdteske * XXX some of these are not quite right.. (I've never seen the root flag set) 166241149Sdteske */ 167241149Sdteske#define MNT_LOCAL 0x00001000 /* filesystem is stored locally */ 168241149Sdteske#define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */ 169241149Sdteske#define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */ 170241149Sdteske#define MNT_USER 0x00008000 /* mounted by a user */ 171241149Sdteske#define MNT_IGNORE 0x00800000 /* do not show entry in df */ 172241149Sdteske 173241149Sdteske/* 174241149Sdteske * Mask of flags that are visible to statfs() 175241149Sdteske * XXX I think that this could now become (~(MNT_CMDFLAGS)) 176241149Sdteske * but the 'mount' program may need changing to handle this. 177241149Sdteske */ 178241149Sdteske#define MNT_VISFLAGMASK (MNT_RDONLY | MNT_SYNCHRONOUS | MNT_NOEXEC | \ 179241149Sdteske MNT_NOSUID | MNT_NODEV | MNT_UNION | \ 180241149Sdteske MNT_ASYNC | MNT_EXRDONLY | MNT_EXPORTED | \ 181241149Sdteske MNT_DEFEXPORTED | MNT_EXPORTANON| MNT_EXKERB | \ 182241149Sdteske MNT_LOCAL | MNT_USER | MNT_QUOTA | \ 183241149Sdteske MNT_ROOTFS | MNT_NOATIME | MNT_NOCLUSTERR| \ 184241149Sdteske MNT_NOCLUSTERW | MNT_SUIDDIR | MNT_SOFTDEP | \ 185241149Sdteske MNT_IGNORE | MNT_EXPUBLIC | MNT_NOSYMFOLLOW) 186241149Sdteske/* 187241149Sdteske * External filesystem command modifier flags. 188241149Sdteske * Unmount can use the MNT_FORCE flag. 189241149Sdteske * XXX These are not STATES and really should be somewhere else. 190241149Sdteske */ 191241149Sdteske#define MNT_UPDATE 0x00010000 /* not a real mount, just an update */ 192241149Sdteske#define MNT_DELEXPORT 0x00020000 /* delete export host lists */ 193241149Sdteske#define MNT_RELOAD 0x00040000 /* reload filesystem data */ 194241149Sdteske#define MNT_FORCE 0x00080000 /* force unmount or readonly change */ 195241149Sdteske#define MNT_SNAPSHOT 0x01000000 /* snapshot the filesystem */ 196241149Sdteske#define MNT_CMDFLAGS (MNT_UPDATE | MNT_DELEXPORT | MNT_RELOAD | \ 197241149Sdteske MNT_FORCE | MNT_SNAPSHOT) 198241149Sdteske/* 199241149Sdteske * Still available 200241149Sdteske */ 201241149Sdteske#define MNT_SPARE1 0x02000000 202241149Sdteske#define MNT_SPARE2 0x04000000 203241149Sdteske#define MNT_SPARE3 0x08000000 204241149Sdteske/* 205241149Sdteske * Internal filesystem control flags stored in mnt_kern_flag. 206241149Sdteske * 207241149Sdteske * MNTK_UNMOUNT locks the mount entry so that name lookup cannot proceed 208241149Sdteske * past the mount point. This keeps the subtree stable during mounts 209241149Sdteske * and unmounts. 210241149Sdteske */ 211241149Sdteske#define MNTK_UNMOUNT 0x01000000 /* unmount in progress */ 212241149Sdteske#define MNTK_MWAIT 0x02000000 /* waiting for unmount to finish */ 213241149Sdteske#define MNTK_WANTRDWR 0x04000000 /* upgrade to read/write requested */ 214241149Sdteske#define MNTK_SUSPEND 0x08000000 /* request write suspension */ 215241149Sdteske#define MNTK_SUSPENDED 0x10000000 /* write operations are suspended */ 216241149Sdteske 217241149Sdteske/* 218241149Sdteske * Sysctl CTL_VFS definitions. 219241149Sdteske * 220241149Sdteske * Second level identifier specifies which filesystem. Second level 221241149Sdteske * identifier VFS_VFSCONF returns information about all filesystems. 222241149Sdteske * Second level identifier VFS_GENERIC is non-terminal. 223241149Sdteske */ 224241149Sdteske#define VFS_VFSCONF 0 /* get configured filesystems */ 225241149Sdteske#define VFS_GENERIC 0 /* generic filesystem information */ 226241149Sdteske/* 227241149Sdteske * Third level identifiers for VFS_GENERIC are given below; third 228241149Sdteske * level identifiers for specific filesystems are given in their 229241149Sdteske * mount specific header files. 230241149Sdteske */ 231241149Sdteske#define VFS_MAXTYPENUM 1 /* int: highest defined filesystem type */ 232241149Sdteske#define VFS_CONF 2 /* struct: vfsconf for filesystem given 233241149Sdteske as next argument */ 234241149Sdteske 235241149Sdteske/* 236241149Sdteske * Flags for various system call interfaces. 237241149Sdteske * 238241149Sdteske * waitfor flags to vfs_sync() and getfsstat() 239241149Sdteske */ 240241149Sdteske#define MNT_WAIT 1 /* synchronously wait for I/O to complete */ 241241149Sdteske#define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */ 242241149Sdteske#define MNT_LAZY 3 /* push data not written by filesystem syncer */ 243241149Sdteske 244241149Sdteske/* 245241149Sdteske * Generic file handle 246241149Sdteske */ 247241149Sdteskestruct fhandle { 248241565Sdteske fsid_t fh_fsid; /* File system id of mount point */ 249241149Sdteske struct fid fh_fid; /* File sys specific id */ 250241149Sdteske}; 251241149Sdtesketypedef struct fhandle fhandle_t; 252241149Sdteske 253241149Sdteske/* 254241149Sdteske * Export arguments for local filesystem mount calls. 255241149Sdteske */ 256241149Sdteskestruct export_args { 257241149Sdteske int ex_flags; /* export related flags */ 258241149Sdteske uid_t ex_root; /* mapping for root uid */ 259241149Sdteske struct xucred ex_anon; /* mapping for anonymous user */ 260241149Sdteske struct sockaddr *ex_addr; /* net address to which exported */ 261241149Sdteske u_char ex_addrlen; /* and the net address length */ 262241149Sdteske struct sockaddr *ex_mask; /* mask of valid bits in saddr */ 263241149Sdteske u_char ex_masklen; /* and the smask length */ 264241149Sdteske char *ex_indexfile; /* index file for WebNFS URLs */ 265241149Sdteske}; 266241149Sdteske 267241149Sdteske/* 268241149Sdteske * Structure holding information for a publicly exported filesystem 269241149Sdteske * (WebNFS). Currently the specs allow just for one such filesystem. 270241149Sdteske */ 271241149Sdteskestruct nfs_public { 272241149Sdteske int np_valid; /* Do we hold valid information */ 273241149Sdteske fhandle_t np_handle; /* Filehandle for pub fs (internal) */ 274241149Sdteske struct mount *np_mount; /* Mountpoint of exported fs */ 275241149Sdteske char *np_index; /* Index file */ 276241149Sdteske}; 277241149Sdteske 278241149Sdteske/* 279241149Sdteske * Filesystem configuration information. One of these exists for each 280241149Sdteske * type of filesystem supported by the kernel. These are searched at 281241149Sdteske * mount time to identify the requested filesystem. 282241149Sdteske */ 283241149Sdteskestruct vfsconf { 284241149Sdteske struct vfsops *vfc_vfsops; /* filesystem operations vector */ 285241149Sdteske char vfc_name[MFSNAMELEN]; /* filesystem type name */ 286241149Sdteske int vfc_typenum; /* historic filesystem type number */ 287241149Sdteske int vfc_refcount; /* number mounted of this type */ 288241149Sdteske int vfc_flags; /* permanent flags */ 289241149Sdteske struct vfsconf *vfc_next; /* next in list */ 290241149Sdteske}; 291241149Sdteske 292241149Sdteskestruct ovfsconf { 293241149Sdteske void *vfc_vfsops; 294241149Sdteske char vfc_name[32]; 295241149Sdteske int vfc_index; 296241149Sdteske int vfc_refcount; 297241149Sdteske int vfc_flags; 298241149Sdteske}; 299241149Sdteske 300241149Sdteske/* 301241149Sdteske * NB: these flags refer to IMPLEMENTATION properties, not properties of 302241149Sdteske * any actual mounts; i.e., it does not make sense to change the flags. 303241149Sdteske */ 304241149Sdteske#define VFCF_STATIC 0x00010000 /* statically compiled into kernel */ 305241149Sdteske#define VFCF_NETWORK 0x00020000 /* may get data over the network */ 306241149Sdteske#define VFCF_READONLY 0x00040000 /* writes are not implemented */ 307241149Sdteske#define VFCF_SYNTHETIC 0x00080000 /* data does not represent real files */ 308241565Sdteske#define VFCF_LOOPBACK 0x00100000 /* aliases some other mounted FS */ 309241149Sdteske#define VFCF_UNICODE 0x00200000 /* stores file names as Unicode*/ 310241149Sdteske 311241149Sdteske#ifdef _KERNEL 312241149Sdteske 313241149Sdteske#ifdef MALLOC_DECLARE 314241149SdteskeMALLOC_DECLARE(M_MOUNT); 315241149Sdteske#endif 316241149Sdteskeextern int maxvfsconf; /* highest defined filesystem type */ 317241149Sdteskeextern int nfs_mount_type; /* vfc_typenum for nfs, or -1 */ 318241149Sdteskeextern struct vfsconf *vfsconf; /* head of list of filesystem types */ 319241149Sdteske 320241149Sdteske/* 321241149Sdteske * Operations supported on mounted file system. 322241149Sdteske */ 323241149Sdteske#ifdef __STDC__ 324241149Sdteskestruct nameidata; 325241149Sdteskestruct mbuf; 326241149Sdteskestruct mount_args; 327241149Sdteske#endif 328241149Sdteske 329241149Sdteskestruct vfsops { 330241149Sdteske int (*vfs_mount) __P((struct mount *mp, char *path, caddr_t data, 331241149Sdteske struct nameidata *ndp, struct thread *td)); 332241149Sdteske int (*vfs_start) __P((struct mount *mp, int flags, 333241149Sdteske struct thread *td)); 334241149Sdteske int (*vfs_unmount) __P((struct mount *mp, int mntflags, 335241149Sdteske struct thread *td)); 336241149Sdteske int (*vfs_root) __P((struct mount *mp, struct vnode **vpp)); 337241149Sdteske int (*vfs_quotactl) __P((struct mount *mp, int cmds, uid_t uid, 338241149Sdteske caddr_t arg, struct thread *td)); 339241149Sdteske int (*vfs_statfs) __P((struct mount *mp, struct statfs *sbp, 340241149Sdteske struct thread *td)); 341241149Sdteske int (*vfs_sync) __P((struct mount *mp, int waitfor, 342241149Sdteske struct ucred *cred, struct thread *td)); 343241149Sdteske int (*vfs_vget) __P((struct mount *mp, ino_t ino, 344241149Sdteske struct vnode **vpp)); 345241149Sdteske int (*vfs_fhtovp) __P((struct mount *mp, struct fid *fhp, 346241149Sdteske struct vnode **vpp)); 347241149Sdteske int (*vfs_checkexp) __P((struct mount *mp, struct sockaddr *nam, 348241149Sdteske int *extflagsp, struct ucred **credanonp)); 349241149Sdteske int (*vfs_vptofh) __P((struct vnode *vp, struct fid *fhp)); 350241149Sdteske int (*vfs_init) __P((struct vfsconf *)); 351241149Sdteske int (*vfs_uninit) __P((struct vfsconf *)); 352241149Sdteske int (*vfs_extattrctl) __P((struct mount *mp, int cmd, 353241149Sdteske struct vnode *filename_vp, 354241149Sdteske int attrnamespace, const char *attrname, 355241149Sdteske struct thread *td)); 356241149Sdteske}; 357241149Sdteske 358241149Sdteske#define VFS_MOUNT(MP, PATH, DATA, NDP, P) \ 359241149Sdteske (*(MP)->mnt_op->vfs_mount)(MP, PATH, DATA, NDP, P) 360241149Sdteske#define VFS_START(MP, FLAGS, P) (*(MP)->mnt_op->vfs_start)(MP, FLAGS, P) 361241149Sdteske#define VFS_UNMOUNT(MP, FORCE, P) (*(MP)->mnt_op->vfs_unmount)(MP, FORCE, P) 362241149Sdteske#define VFS_ROOT(MP, VPP) (*(MP)->mnt_op->vfs_root)(MP, VPP) 363241149Sdteske#define VFS_QUOTACTL(MP,C,U,A,P) (*(MP)->mnt_op->vfs_quotactl)(MP, C, U, A, P) 364241149Sdteske#define VFS_STATFS(MP, SBP, P) (*(MP)->mnt_op->vfs_statfs)(MP, SBP, P) 365241149Sdteske#define VFS_SYNC(MP, WAIT, C, P) (*(MP)->mnt_op->vfs_sync)(MP, WAIT, C, P) 366241149Sdteske#define VFS_VGET(MP, INO, VPP) (*(MP)->mnt_op->vfs_vget)(MP, INO, VPP) 367241149Sdteske#define VFS_FHTOVP(MP, FIDP, VPP) \ 368241149Sdteske (*(MP)->mnt_op->vfs_fhtovp)(MP, FIDP, VPP) 369241149Sdteske#define VFS_VPTOFH(VP, FIDP) (*(VP)->v_mount->mnt_op->vfs_vptofh)(VP, FIDP) 370241149Sdteske#define VFS_CHECKEXP(MP, NAM, EXFLG, CRED) \ 371241149Sdteske (*(MP)->mnt_op->vfs_checkexp)(MP, NAM, EXFLG, CRED) 372241149Sdteske#define VFS_EXTATTRCTL(MP, C, FN, NS, N, P) \ 373241149Sdteske (*(MP)->mnt_op->vfs_extattrctl)(MP, C, FN, NS, N, P) 374241149Sdteske 375241149Sdteske#include <sys/module.h> 376241149Sdteske 377241149Sdteske#define VFS_SET(vfsops, fsname, flags) \ 378241149Sdteske static struct vfsconf fsname ## _vfsconf = { \ 379241149Sdteske &vfsops, \ 380241149Sdteske #fsname, \ 381241149Sdteske -1, \ 382241149Sdteske 0, \ 383241149Sdteske flags \ 384241149Sdteske }; \ 385241149Sdteske static moduledata_t fsname ## _mod = { \ 386241149Sdteske #fsname, \ 387241149Sdteske vfs_modevent, \ 388241149Sdteske & fsname ## _vfsconf \ 389241149Sdteske }; \ 390241149Sdteske DECLARE_MODULE(fsname, fsname ## _mod, SI_SUB_VFS, SI_ORDER_MIDDLE) 391241149Sdteske 392241149Sdteskeextern char *mountrootfsname; 393241149Sdteske 394241149Sdteske/* 395241149Sdteske * exported vnode operations 396241149Sdteske */ 397241149Sdteskeint dounmount __P((struct mount *, int, struct thread *td)); 398241149Sdteskeint vfs_mount __P((struct thread *td, const char *type, char *path, 399241149Sdteske int flags, void *data)); 400241149Sdteskeint vfs_setpublicfs /* set publicly exported fs */ 401241149Sdteske __P((struct mount *, struct netexport *, struct export_args *)); 402241149Sdteskeint vfs_lock __P((struct mount *)); /* lock a vfs */ 403241149Sdteskevoid vfs_msync __P((struct mount *, int)); 404241149Sdteskevoid vfs_unlock __P((struct mount *)); /* unlock a vfs */ 405241149Sdteskeint vfs_busy __P((struct mount *, int, struct mtx *, struct thread *td)); 406241149Sdteskeint vfs_export /* process mount export info */ 407241149Sdteske __P((struct mount *, struct export_args *)); 408241149Sdteskestruct netcred *vfs_export_lookup /* lookup host in fs export list */ 409241149Sdteske __P((struct mount *, struct sockaddr *)); 410241149Sdteskeint vfs_allocate_syncvnode __P((struct mount *)); 411241149Sdteskevoid vfs_getnewfsid __P((struct mount *)); 412241149Sdteskedev_t vfs_getrootfsid __P((struct mount *)); 413241149Sdteskestruct mount *vfs_getvfs __P((fsid_t *)); /* return vfs given fsid */ 414241149Sdteskeint vfs_modevent __P((module_t, int, void *)); 415241149Sdteskeint vfs_mountedon __P((struct vnode *)); /* is a vfs mounted on vp */ 416241149Sdteskeint vfs_rootmountalloc __P((char *, char *, struct mount **)); 417241149Sdteskevoid vfs_unbusy __P((struct mount *, struct thread *td)); 418241149Sdteskevoid vfs_unmountall __P((void)); 419241149Sdteskeint vfs_register __P((struct vfsconf *)); 420241149Sdteskeint vfs_unregister __P((struct vfsconf *)); 421241149Sdteskeextern TAILQ_HEAD(mntlist, mount) mountlist; /* mounted filesystem list */ 422241149Sdteskeextern struct mtx mountlist_mtx; 423241149Sdteskeextern struct nfs_public nfs_pub; 424241149Sdteske 425241149Sdteske/* 426241149Sdteske * Declarations for these vfs default operations are located in 427241149Sdteske * kern/vfs_default.c, they should be used instead of making "dummy" 428241149Sdteske * functions or casting entries in the VFS op table to "enopnotsupp()". 429241149Sdteske */ 430241149Sdteskeint vfs_stdmount __P((struct mount *mp, char *path, caddr_t data, 431241149Sdteske struct nameidata *ndp, struct thread *td)); 432241149Sdteskeint vfs_stdstart __P((struct mount *mp, int flags, struct thread *td)); 433241149Sdteskeint vfs_stdunmount __P((struct mount *mp, int mntflags, struct thread *td)); 434241565Sdteskeint vfs_stdroot __P((struct mount *mp, struct vnode **vpp)); 435241149Sdteskeint vfs_stdquotactl __P((struct mount *mp, int cmds, uid_t uid, 436241149Sdteske caddr_t arg, struct thread *td)); 437241149Sdteskeint vfs_stdstatfs __P((struct mount *mp, struct statfs *sbp, struct thread *td)); 438241149Sdteskeint vfs_stdsync __P((struct mount *mp, int waitfor, struct ucred *cred, 439241149Sdteske struct thread *td)); 440241149Sdteskeint vfs_stdvget __P((struct mount *mp, ino_t ino, struct vnode **vpp)); 441241149Sdteskeint vfs_stdfhtovp __P((struct mount *mp, struct fid *fhp, struct vnode **vpp)); 442241149Sdteskeint vfs_stdcheckexp __P((struct mount *mp, struct sockaddr *nam, 443241149Sdteske int *extflagsp, struct ucred **credanonp)); 444241149Sdteskeint vfs_stdvptofh __P((struct vnode *vp, struct fid *fhp)); 445241149Sdteskeint vfs_stdinit __P((struct vfsconf *)); 446241149Sdteskeint vfs_stduninit __P((struct vfsconf *)); 447241149Sdteskeint vfs_stdextattrctl __P((struct mount *mp, int cmd, 448241149Sdteske struct vnode *filename_vp, int attrnamespace, const char *attrname, 449241149Sdteske struct thread *td)); 450241149Sdteske 451241149Sdteske/* XXX - these should be indirect functions!!! */ 452241149Sdteskeint softdep_process_worklist __P((struct mount *)); 453241149Sdteskeint softdep_fsync __P((struct vnode *)); 454241149Sdteske#else /* !_KERNEL */ 455241149Sdteske 456241149Sdteske#include <sys/cdefs.h> 457241149Sdteske 458241149Sdteskestruct stat; 459241149Sdteske 460241149Sdteske__BEGIN_DECLS 461241149Sdteskeint fhopen __P((const struct fhandle *, int)); 462241149Sdteskeint fhstat __P((const struct fhandle *, struct stat *)); 463241149Sdteskeint fhstatfs __P((const struct fhandle *, struct statfs *)); 464241149Sdteskeint fstatfs __P((int, struct statfs *)); 465241149Sdteskeint getfh __P((const char *, fhandle_t *)); 466241149Sdteskeint getfsstat __P((struct statfs *, long, int)); 467241149Sdteskeint getmntinfo __P((struct statfs **, int)); 468241149Sdteskeint mount __P((const char *, const char *, int, void *)); 469241149Sdteskeint statfs __P((const char *, struct statfs *)); 470241149Sdteskeint unmount __P((const char *, int)); 471241149Sdteske 472241149Sdteske/* C library stuff */ 473241149Sdteskevoid endvfsent __P((void)); 474241149Sdteskestruct ovfsconf *getvfsbyname __P((const char *)); 475241149Sdteskestruct ovfsconf *getvfsbytype __P((int)); 476241149Sdteskestruct ovfsconf *getvfsent __P((void)); 477241149Sdteske#define getvfsbyname new_getvfsbyname 478241149Sdteskeint new_getvfsbyname __P((const char *, struct vfsconf *)); 479241149Sdteskevoid setvfsent __P((int)); 480241149Sdteskeint vfsisloadable __P((const char *)); 481241149Sdteskeint vfsload __P((const char *)); 482241149Sdteske__END_DECLS 483241149Sdteske 484241149Sdteske#endif /* _KERNEL */ 485241149Sdteske 486241149Sdteske#endif /* !_SYS_MOUNT_H_ */ 487241149Sdteske