1 /* $NetBSD: ntfs_vnops.c,v 1.23 1999/10/31 19:45:27 jdolecek Exp $ */
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * John Heidemann of the UCLA Ficus project.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * $FreeBSD: src/sys/ntfs/ntfs_vnops.c,v 1.9.2.4 2002/08/06 19:35:18 semenu Exp $
39 * $DragonFly: src/sys/vfs/ntfs/ntfs_vnops.c,v 1.12 2004/04/24 04:32:04 drhodus Exp $
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/kernel.h>
47 #include <sys/types.h>
49 #include <sys/vnode.h>
50 #include <sys/mount.h>
52 #include <sys/namei.h>
53 #include <sys/malloc.h>
55 #include <sys/dirent.h>
58 #include <vm/vm_param.h>
59 #if defined(__NetBSD__)
60 #include <vm/vm_prot.h>
62 #include <vm/vm_page.h>
63 #include <vm/vm_object.h>
64 #include <vm/vm_pager.h>
65 #if defined(__DragonFly__)
66 #include <vm/vnode_pager.h>
68 #include <vm/vm_extern.h>
70 #include <sys/sysctl.h>
72 /*#define NTFS_DEBUG 1*/
74 #include "ntfs_inode.h"
75 #include "ntfs_subr.h"
76 #if defined(__NetBSD__)
77 #include <miscfs/specfs/specdev.h>
78 #include <miscfs/genfs/genfs.h>
81 #include <sys/unistd.h> /* for pathconf(2) constants */
83 static int ntfs_read (struct vop_read_args *);
84 static int ntfs_write (struct vop_write_args *ap);
85 static int ntfs_getattr (struct vop_getattr_args *ap);
86 static int ntfs_inactive (struct vop_inactive_args *ap);
87 static int ntfs_print (struct vop_print_args *ap);
88 static int ntfs_reclaim (struct vop_reclaim_args *ap);
89 static int ntfs_strategy (struct vop_strategy_args *ap);
90 static int ntfs_access (struct vop_access_args *ap);
91 static int ntfs_open (struct vop_open_args *ap);
92 static int ntfs_close (struct vop_close_args *ap);
93 static int ntfs_readdir (struct vop_readdir_args *ap);
94 static int ntfs_lookup (struct vop_lookup_args *ap);
95 static int ntfs_bmap (struct vop_bmap_args *ap);
96 #if defined(__DragonFly__)
97 static int ntfs_getpages (struct vop_getpages_args *ap);
98 static int ntfs_putpages (struct vop_putpages_args *);
99 static int ntfs_fsync (struct vop_fsync_args *ap);
101 static int ntfs_bypass (struct vop_generic_args *ap);
103 static int ntfs_pathconf (void *);
105 int ntfs_prtactive = 1; /* 1 => print out reclaim of active vnodes */
107 #if defined(__DragonFly__)
109 ntfs_getpages(struct vop_getpages_args *ap)
111 return vnode_pager_generic_getpages(ap->a_vp, ap->a_m, ap->a_count,
116 ntfs_putpages(struct vop_putpages_args *ap)
118 return vnode_pager_generic_putpages(ap->a_vp, ap->a_m, ap->a_count,
119 ap->a_sync, ap->a_rtvals);
124 * This is a noop, simply returning what one has been given.
126 * ntfs_bmap(struct vnode *a_vp, daddr_t a_bn, struct vnode **a_vpp,
127 * daddr_t *a_bnp, int *a_runp, int *a_runb)
130 ntfs_bmap(struct vop_bmap_args *ap)
132 dprintf(("ntfs_bmap: vn: %p, blk: %d\n", ap->a_vp,(u_int32_t)ap->a_bn));
133 if (ap->a_vpp != NULL)
134 *ap->a_vpp = ap->a_vp;
135 if (ap->a_bnp != NULL)
136 *ap->a_bnp = ap->a_bn;
137 if (ap->a_runp != NULL)
139 #if !defined(__NetBSD__)
140 if (ap->a_runb != NULL)
147 * ntfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
148 * struct ucred *a_cred)
151 ntfs_read(struct vop_read_args *ap)
153 struct vnode *vp = ap->a_vp;
154 struct fnode *fp = VTOF(vp);
155 struct ntnode *ip = FTONT(fp);
156 struct uio *uio = ap->a_uio;
157 struct ntfsmount *ntmp = ip->i_mp;
160 int resid, off, toread;
163 dprintf(("ntfs_read: ino: %d, off: %d resid: %d, segflg: %d\n",ip->i_number,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg));
165 dprintf(("ntfs_read: filesize: %d",(u_int32_t)fp->f_size));
167 /* don't allow reading after end of file */
168 if (uio->uio_offset > fp->f_size)
171 resid = min(uio->uio_resid, fp->f_size - uio->uio_offset);
173 dprintf((", resid: %d\n", resid));
177 cn = ntfs_btocn(uio->uio_offset);
178 off = ntfs_btocnoff(uio->uio_offset);
180 toread = min(off + resid, ntfs_cntob(1));
182 error = bread(vp, cn, ntfs_cntob(1), &bp);
188 error = uiomove(bp->b_data + off, toread - off, uio);
195 resid -= toread - off;
201 #if !defined(__DragonFly__)
204 * ntfs_bypass(struct vnodeop_desc *a_desc, ...)
207 ntfs_bypass(struct vop_generic_args *ap)
210 dprintf(("ntfs_bypass: %s\n", ap->a_desc->vdesc_name));
217 * ntfs_getattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred,
218 * struct thread *a_td)
221 ntfs_getattr(struct vop_getattr_args *ap)
223 struct vnode *vp = ap->a_vp;
224 struct fnode *fp = VTOF(vp);
225 struct ntnode *ip = FTONT(fp);
226 struct vattr *vap = ap->a_vap;
228 dprintf(("ntfs_getattr: %d, flags: %d\n",ip->i_number,ip->i_flag));
230 #if defined(__DragonFly__)
231 vap->va_fsid = dev2udev(ip->i_dev);
233 vap->va_fsid = ip->i_dev;
235 vap->va_fileid = ip->i_number;
236 vap->va_mode = ip->i_mp->ntm_mode;
237 vap->va_nlink = ip->i_nlink;
238 vap->va_uid = ip->i_mp->ntm_uid;
239 vap->va_gid = ip->i_mp->ntm_gid;
240 vap->va_rdev = 0; /* XXX UNODEV ? */
241 vap->va_size = fp->f_size;
242 vap->va_bytes = fp->f_allocated;
243 vap->va_atime = ntfs_nttimetounix(fp->f_times.t_access);
244 vap->va_mtime = ntfs_nttimetounix(fp->f_times.t_write);
245 vap->va_ctime = ntfs_nttimetounix(fp->f_times.t_create);
246 vap->va_flags = ip->i_flag;
248 vap->va_blocksize = ip->i_mp->ntm_spc * ip->i_mp->ntm_bps;
249 vap->va_type = vp->v_type;
256 * Last reference to an ntnode. If necessary, write or delete it.
258 * ntfs_inactive(struct vnode *a_vp)
261 ntfs_inactive(struct vop_inactive_args *ap)
263 struct vnode *vp = ap->a_vp;
265 struct ntnode *ip = VTONT(vp);
268 dprintf(("ntfs_inactive: vnode: %p, ntnode: %d\n", vp, ip->i_number));
270 if (ntfs_prtactive && vp->v_usecount != 0)
271 vprint("ntfs_inactive: pushing active", vp);
273 VOP__UNLOCK(vp, 0, ap->a_td);
275 /* XXX since we don't support any filesystem changes
276 * right now, nothing more needs to be done
282 * Reclaim an fnode/ntnode so that it can be used for other purposes.
284 * ntfs_reclaim(struct vnode *a_vp)
287 ntfs_reclaim(struct vop_reclaim_args *ap)
289 struct vnode *vp = ap->a_vp;
290 struct fnode *fp = VTOF(vp);
291 struct ntnode *ip = FTONT(fp);
294 dprintf(("ntfs_reclaim: vnode: %p, ntnode: %d\n", vp, ip->i_number));
296 if (ntfs_prtactive && vp->v_usecount != 0)
297 vprint("ntfs_reclaim: pushing active", vp);
299 if ((error = ntfs_ntget(ip)) != 0)
302 /* Purge old data structures associated with the inode. */
313 * ntfs_print(struct vnode *a_vp)
316 ntfs_print(struct vop_print_args *ap)
322 * Calculate the logical to physical mapping if not done already,
323 * then call the device strategy routine.
325 * ntfs_strategy(struct buf *a_bp)
328 ntfs_strategy(struct vop_strategy_args *ap)
330 struct buf *bp = ap->a_bp;
331 struct vnode *vp = bp->b_vp;
332 struct fnode *fp = VTOF(vp);
333 struct ntnode *ip = FTONT(fp);
334 struct ntfsmount *ntmp = ip->i_mp;
338 dprintf(("ntfs_strategy: offset: %d, blkno: %d, lblkno: %d\n",
339 (u_int32_t)bp->b_offset,(u_int32_t)bp->b_blkno,
340 (u_int32_t)bp->b_lblkno));
342 dprintf(("ntfs_strategy: blkno: %d, lblkno: %d\n",
343 (u_int32_t)bp->b_blkno,
344 (u_int32_t)bp->b_lblkno));
347 dprintf(("strategy: bcount: %d flags: 0x%lx\n",
348 (u_int32_t)bp->b_bcount,bp->b_flags));
350 if (bp->b_flags & B_READ) {
353 if (ntfs_cntob(bp->b_blkno) >= fp->f_size) {
357 toread = min(bp->b_bcount,
358 fp->f_size-ntfs_cntob(bp->b_blkno));
359 dprintf(("ntfs_strategy: toread: %d, fsize: %d\n",
360 toread,(u_int32_t)fp->f_size));
362 error = ntfs_readattr(ntmp, ip, fp->f_attrtype,
363 fp->f_attrname, ntfs_cntob(bp->b_blkno),
364 toread, bp->b_data, NULL);
367 printf("ntfs_strategy: ntfs_readattr failed\n");
369 bp->b_flags |= B_ERROR;
372 bzero(bp->b_data + toread, bp->b_bcount - toread);
378 if (ntfs_cntob(bp->b_blkno) + bp->b_bcount >= fp->f_size) {
379 printf("ntfs_strategy: CAN'T EXTEND FILE\n");
380 bp->b_error = error = EFBIG;
381 bp->b_flags |= B_ERROR;
383 towrite = min(bp->b_bcount,
384 fp->f_size-ntfs_cntob(bp->b_blkno));
385 dprintf(("ntfs_strategy: towrite: %d, fsize: %d\n",
386 towrite,(u_int32_t)fp->f_size));
388 error = ntfs_writeattr_plain(ntmp, ip, fp->f_attrtype,
389 fp->f_attrname, ntfs_cntob(bp->b_blkno),towrite,
390 bp->b_data, &tmp, NULL);
393 printf("ntfs_strategy: ntfs_writeattr fail\n");
395 bp->b_flags |= B_ERROR;
404 * ntfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
405 * struct ucred *a_cred)
408 ntfs_write(struct vop_write_args *ap)
410 struct vnode *vp = ap->a_vp;
411 struct fnode *fp = VTOF(vp);
412 struct ntnode *ip = FTONT(fp);
413 struct uio *uio = ap->a_uio;
414 struct ntfsmount *ntmp = ip->i_mp;
419 dprintf(("ntfs_write: ino: %d, off: %d resid: %d, segflg: %d\n",ip->i_number,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg));
420 dprintf(("ntfs_write: filesize: %d",(u_int32_t)fp->f_size));
422 if (uio->uio_resid + uio->uio_offset > fp->f_size) {
423 printf("ntfs_write: CAN'T WRITE BEYOND END OF FILE\n");
427 towrite = min(uio->uio_resid, fp->f_size - uio->uio_offset);
429 dprintf((", towrite: %d\n",(u_int32_t)towrite));
431 error = ntfs_writeattr_plain(ntmp, ip, fp->f_attrtype,
432 fp->f_attrname, uio->uio_offset, towrite, NULL, &written, uio);
435 printf("ntfs_write: ntfs_writeattr failed: %d\n", error);
442 * ntfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
443 * struct thread *a_td)
446 ntfs_access(struct vop_access_args *ap)
448 struct vnode *vp = ap->a_vp;
449 struct ntnode *ip = VTONT(vp);
450 struct ucred *cred = ap->a_cred;
451 mode_t mask, mode = ap->a_mode;
458 dprintf(("ntfs_access: %d\n",ip->i_number));
461 * Disallow write attempts on read-only file systems;
462 * unless the file is a socket, fifo, or a block or
463 * character device resident on the file system.
466 switch ((int)vp->v_type) {
470 if (vp->v_mount->mnt_flag & MNT_RDONLY)
473 if (error = getinoquota(ip))
480 /* Otherwise, user id 0 always gets access. */
481 if (cred->cr_uid == 0)
486 /* Otherwise, check the owner. */
487 if (cred->cr_uid == ip->i_mp->ntm_uid) {
494 return ((ip->i_mp->ntm_mode & mask) == mask ? 0 : EACCES);
497 /* Otherwise, check the groups. */
498 for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++)
499 if (ip->i_mp->ntm_gid == *gp) {
506 return ((ip->i_mp->ntm_mode&mask) == mask ? 0 : EACCES);
509 /* Otherwise, check everyone else. */
516 return ((ip->i_mp->ntm_mode & mask) == mask ? 0 : EACCES);
524 * ntfs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
525 * struct thread *a_td)
529 ntfs_open(struct vop_open_args *ap)
532 struct vnode *vp = ap->a_vp;
533 struct ntnode *ip = VTONT(vp);
535 printf("ntfs_open: %d\n",ip->i_number);
539 * Files marked append-only must be opened for appending.
548 * Update the times on the inode.
550 * ntfs_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
551 * struct thread *a_td)
555 ntfs_close(struct vop_close_args *ap)
558 struct vnode *vp = ap->a_vp;
559 struct ntnode *ip = VTONT(vp);
561 printf("ntfs_close: %d\n",ip->i_number);
568 * ntfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
569 * int *a_ncookies, u_int **cookies)
572 ntfs_readdir(struct vop_readdir_args *ap)
574 struct vnode *vp = ap->a_vp;
575 struct fnode *fp = VTOF(vp);
576 struct ntnode *ip = FTONT(fp);
577 struct uio *uio = ap->a_uio;
578 struct ntfsmount *ntmp = ip->i_mp;
580 u_int32_t faked = 0, num;
585 dprintf(("ntfs_readdir %d off: %d resid: %d\n",ip->i_number,(u_int32_t)uio->uio_offset,uio->uio_resid));
587 off = uio->uio_offset;
589 /* Simulate . in every dir except ROOT */
590 if( ip->i_number != NTFS_ROOTINO ) {
591 struct dirent dot = { NTFS_ROOTINO,
592 sizeof(struct dirent), DT_DIR, 1, "." };
594 if( uio->uio_offset < sizeof(struct dirent) ) {
595 dot.d_fileno = ip->i_number;
596 error = uiomove((char *)&dot,sizeof(struct dirent),uio);
604 /* Simulate .. in every dir including ROOT */
605 if( uio->uio_offset < 2 * sizeof(struct dirent) ) {
606 struct dirent dotdot = { NTFS_ROOTINO,
607 sizeof(struct dirent), DT_DIR, 2, ".." };
609 error = uiomove((char *)&dotdot,sizeof(struct dirent),uio);
616 faked = (ip->i_number == NTFS_ROOTINO) ? 1 : 2;
617 num = uio->uio_offset / sizeof(struct dirent) - faked;
619 while( uio->uio_resid >= sizeof(struct dirent) ) {
620 struct attr_indexentry *iep;
622 error = ntfs_ntreaddir(ntmp, fp, num, &iep);
630 for(; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (uio->uio_resid >= sizeof(struct dirent));
631 iep = NTFS_NEXTREC(iep, struct attr_indexentry *))
633 if(!ntfs_isnamepermitted(ntmp,iep))
636 for(i=0; i<iep->ie_fnamelen; i++) {
637 cde.d_name[i] = NTFS_U28(iep->ie_fname[i]);
639 cde.d_name[i] = '\0';
640 dprintf(("ntfs_readdir: elem: %d, fname:[%s] type: %d, flag: %d, ",
641 num, cde.d_name, iep->ie_fnametype,
643 cde.d_namlen = iep->ie_fnamelen;
644 cde.d_fileno = iep->ie_number;
645 cde.d_type = (iep->ie_fflag & NTFS_FFLAG_DIR) ? DT_DIR : DT_REG;
646 cde.d_reclen = sizeof(struct dirent);
647 dprintf(("%s\n", (cde.d_type == DT_DIR) ? "dir":"reg"));
649 error = uiomove((char *)&cde, sizeof(struct dirent), uio);
658 dprintf(("ntfs_readdir: %d entries (%d bytes) read\n",
659 ncookies,(u_int)(uio->uio_offset - off)));
660 dprintf(("ntfs_readdir: off: %d resid: %d\n",
661 (u_int32_t)uio->uio_offset,uio->uio_resid));
663 if (!error && ap->a_ncookies != NULL) {
664 struct dirent* dpStart;
666 #if defined(__DragonFly__)
669 #else /* defined(__NetBSD__) */
674 ddprintf(("ntfs_readdir: %d cookies\n",ncookies));
675 if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
676 panic("ntfs_readdir: unexpected uio from NFS server");
677 dpStart = (struct dirent *)
678 ((caddr_t)uio->uio_iov->iov_base -
679 (uio->uio_offset - off));
680 #if defined(__DragonFly__)
681 MALLOC(cookies, u_long *, ncookies * sizeof(u_long),
683 #else /* defined(__NetBSD__) */
684 MALLOC(cookies, off_t *, ncookies * sizeof(off_t),
687 for (dp = dpStart, cookiep = cookies, i=0;
689 dp = (struct dirent *)((caddr_t) dp + dp->d_reclen), i++) {
691 *cookiep++ = (u_int) off;
693 *ap->a_ncookies = ncookies;
694 *ap->a_cookies = cookies;
698 *ap->a_eofflag = VTONT(ap->a_vp)->i_size <= uio->uio_offset;
704 * ntfs_lookup(struct vnode *a_dvp, struct vnode **a_vpp,
705 * struct componentname *a_cnp)
708 ntfs_lookup(struct vop_lookup_args *ap)
710 struct vnode *dvp = ap->a_dvp;
711 struct ntnode *dip = VTONT(dvp);
712 struct ntfsmount *ntmp = dip->i_mp;
713 struct componentname *cnp = ap->a_cnp;
714 struct ucred *cred = cnp->cn_cred;
716 int lockparent = cnp->cn_flags & CNP_LOCKPARENT;
718 int wantparent = cnp->cn_flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
720 dprintf(("ntfs_lookup: \"%.*s\" (%ld bytes) in %d, lp: %d, wp: %d \n",
721 (int)cnp->cn_namelen, cnp->cn_nameptr, cnp->cn_namelen,
722 dip->i_number, lockparent, wantparent));
724 error = VOP_ACCESS(dvp, VEXEC, cred, cnp->cn_td);
728 if ((cnp->cn_flags & CNP_ISLASTCN) &&
729 (dvp->v_mount->mnt_flag & MNT_RDONLY) &&
730 (cnp->cn_nameiop == NAMEI_DELETE || cnp->cn_nameiop == NAMEI_RENAME))
735 * We now have a segment name to search for, and a directory
738 * Before tediously performing a linear scan of the directory,
739 * check the name cache to see if the directory/name pair
740 * we are looking for is known already.
742 if ((error = cache_lookup(ap->a_dvp, NCPNULL, ap->a_vpp, NCPPNULL, cnp)) >= 0)
746 if(cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
747 dprintf(("ntfs_lookup: faking . directory in %d\n",
753 } else if (cnp->cn_flags & CNP_ISDOTDOT) {
756 dprintf(("ntfs_lookup: faking .. directory in %d\n",
759 error = ntfs_ntvattrget(ntmp, dip, NTFS_A_NAME, NULL, 0, &vap);
763 VOP__UNLOCK(dvp,0,cnp->cn_td);
764 cnp->cn_flags |= CNP_PDIRUNLOCK;
766 dprintf(("ntfs_lookup: parentdir: %d\n",
767 vap->va_a_name->n_pnumber));
768 error = VFS_VGET(ntmp->ntm_mountp,
769 vap->va_a_name->n_pnumber,ap->a_vpp);
770 ntfs_ntvattrrele(vap);
772 if (VN_LOCK(dvp,LK_EXCLUSIVE|LK_RETRY,cnp->cn_td)==0)
773 cnp->cn_flags &= ~CNP_PDIRUNLOCK;
777 if (lockparent && (cnp->cn_flags & CNP_ISLASTCN)) {
778 error = VN_LOCK(dvp, LK_EXCLUSIVE, cnp->cn_td);
780 vput( *(ap->a_vpp) );
783 cnp->cn_flags &= ~CNP_PDIRUNLOCK;
786 error = ntfs_ntlookupfile(ntmp, dvp, cnp, ap->a_vpp);
788 dprintf(("ntfs_ntlookupfile: returned %d\n", error));
792 dprintf(("ntfs_lookup: found ino: %d\n",
793 VTONT(*ap->a_vpp)->i_number));
795 if(!lockparent || !(cnp->cn_flags & CNP_ISLASTCN))
796 VOP__UNLOCK(dvp, 0, cnp->cn_td);
799 if (cnp->cn_flags & CNP_MAKEENTRY)
800 cache_enter(dvp, NCPNULL, *ap->a_vpp, cnp);
805 #if defined(__DragonFly__)
807 * Flush the blocks of a file to disk.
809 * This function is worthless for vnodes that represent directories. Maybe we
810 * could just do a sync if they try an fsync on a directory file.
812 * ntfs_fsync(struct vnode *a_vp, struct ucred *a_cred, int a_waitfor,
813 * struct thread *a_td)
816 ntfs_fsync(struct vop_fsync_args *ap)
823 * Return POSIX pathconf information applicable to NTFS filesystem
826 ntfs_pathconf(void *v)
828 struct vop_pathconf_args /* {
831 register_t *a_retval;
834 switch (ap->a_name) {
839 *ap->a_retval = NTFS_MAXFILENAME;
842 *ap->a_retval = PATH_MAX;
844 case _PC_CHOWN_RESTRICTED:
850 #if defined(__NetBSD__)
854 case _PC_FILESIZEBITS:
865 * Global vfs data structures
867 vop_t **ntfs_vnodeop_p;
868 #if defined(__DragonFly__)
870 struct vnodeopv_entry_desc ntfs_vnodeop_entries[] = {
871 { &vop_default_desc, (vop_t *)vop_defaultop },
873 { &vop_getattr_desc, (vop_t *)ntfs_getattr },
874 { &vop_inactive_desc, (vop_t *)ntfs_inactive },
875 { &vop_reclaim_desc, (vop_t *)ntfs_reclaim },
876 { &vop_print_desc, (vop_t *)ntfs_print },
877 { &vop_pathconf_desc, ntfs_pathconf },
879 { &vop_islocked_desc, (vop_t *)vop_stdislocked },
880 { &vop_unlock_desc, (vop_t *)vop_stdunlock },
881 { &vop_lock_desc, (vop_t *)vop_stdlock },
882 { &vop_cachedlookup_desc, (vop_t *)ntfs_lookup },
883 { &vop_lookup_desc, (vop_t *)vfs_cache_lookup },
885 { &vop_access_desc, (vop_t *)ntfs_access },
886 { &vop_close_desc, (vop_t *)ntfs_close },
887 { &vop_open_desc, (vop_t *)ntfs_open },
888 { &vop_readdir_desc, (vop_t *)ntfs_readdir },
889 { &vop_fsync_desc, (vop_t *)ntfs_fsync },
891 { &vop_bmap_desc, (vop_t *)ntfs_bmap },
892 { &vop_getpages_desc, (vop_t *) ntfs_getpages },
893 { &vop_putpages_desc, (vop_t *) ntfs_putpages },
894 { &vop_strategy_desc, (vop_t *)ntfs_strategy },
895 { &vop_bwrite_desc, (vop_t *)vop_stdbwrite },
896 { &vop_read_desc, (vop_t *)ntfs_read },
897 { &vop_write_desc, (vop_t *)ntfs_write },
903 struct vnodeopv_desc ntfs_vnodeop_opv_desc =
904 { &ntfs_vnodeop_p, ntfs_vnodeop_entries };
906 VNODEOP_SET(ntfs_vnodeop_opv_desc);
910 struct vnodeopv_entry_desc ntfs_vnodeop_entries[] = {
911 { &vop_default_desc, (vop_t *) ntfs_bypass },
912 { &vop_lookup_desc, (vop_t *) ntfs_lookup }, /* lookup */
913 { &vop_create_desc, genfs_eopnotsupp }, /* create */
914 { &vop_mknod_desc, genfs_eopnotsupp }, /* mknod */
915 { &vop_open_desc, (vop_t *) ntfs_open }, /* open */
916 { &vop_close_desc,(vop_t *) ntfs_close }, /* close */
917 { &vop_access_desc, (vop_t *) ntfs_access }, /* access */
918 { &vop_getattr_desc, (vop_t *) ntfs_getattr }, /* getattr */
919 { &vop_setattr_desc, genfs_eopnotsupp }, /* setattr */
920 { &vop_read_desc, (vop_t *) ntfs_read }, /* read */
921 { &vop_write_desc, (vop_t *) ntfs_write }, /* write */
922 { &vop_lease_desc, genfs_lease_check }, /* lease */
923 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */
924 { &vop_ioctl_desc, genfs_enoioctl }, /* ioctl */
925 { &vop_poll_desc, genfs_poll }, /* poll */
926 { &vop_revoke_desc, genfs_revoke }, /* revoke */
927 { &vop_mmap_desc, genfs_eopnotsupp }, /* mmap */
928 { &vop_fsync_desc, genfs_fsync }, /* fsync */
929 { &vop_seek_desc, genfs_seek }, /* seek */
930 { &vop_remove_desc, genfs_eopnotsupp }, /* remove */
931 { &vop_link_desc, genfs_eopnotsupp }, /* link */
932 { &vop_rename_desc, genfs_eopnotsupp }, /* rename */
933 { &vop_mkdir_desc, genfs_eopnotsupp }, /* mkdir */
934 { &vop_rmdir_desc, genfs_eopnotsupp }, /* rmdir */
935 { &vop_symlink_desc, genfs_eopnotsupp }, /* symlink */
936 { &vop_readdir_desc, (vop_t *) ntfs_readdir }, /* readdir */
937 { &vop_readlink_desc, genfs_eopnotsupp }, /* readlink */
938 { &vop_abortop_desc, genfs_abortop }, /* abortop */
939 { &vop_inactive_desc, (vop_t *) ntfs_inactive }, /* inactive */
940 { &vop_reclaim_desc, (vop_t *) ntfs_reclaim }, /* reclaim */
941 { &vop_lock_desc, genfs_lock }, /* lock */
942 { &vop_unlock_desc, genfs_unlock }, /* unlock */
943 { &vop_bmap_desc, (vop_t *) ntfs_bmap }, /* bmap */
944 { &vop_strategy_desc, (vop_t *) ntfs_strategy }, /* strategy */
945 { &vop_print_desc, (vop_t *) ntfs_print }, /* print */
946 { &vop_islocked_desc, genfs_islocked }, /* islocked */
947 { &vop_pathconf_desc, ntfs_pathconf }, /* pathconf */
948 { &vop_advlock_desc, genfs_nullop }, /* advlock */
949 { &vop_blkatoff_desc, genfs_eopnotsupp }, /* blkatoff */
950 { &vop_valloc_desc, genfs_eopnotsupp }, /* valloc */
951 { &vop_reallocblks_desc, genfs_eopnotsupp }, /* reallocblks */
952 { &vop_vfree_desc, genfs_eopnotsupp }, /* vfree */
953 { &vop_truncate_desc, genfs_eopnotsupp }, /* truncate */
954 { &vop_update_desc, genfs_eopnotsupp }, /* update */
955 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */
956 { (struct vnodeop_desc *)NULL, (int (*) (void *))NULL }
958 struct vnodeopv_desc ntfs_vnodeop_opv_desc =
959 { &ntfs_vnodeop_p, ntfs_vnodeop_entries };