Initial import from FreeBSD RELENG_4:
[dragonfly.git] / sys / vfs / ntfs / ntfs_vfsops.c
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MD
1/* $NetBSD: ntfs_vfsops.c,v 1.23 1999/11/15 19:38:14 jdolecek Exp $ */
2
3/*-
4 * Copyright (c) 1998, 1999 Semen Ustimenko
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/ntfs/ntfs_vfsops.c,v 1.20.2.5 2001/12/25 01:44:45 dillon Exp $
29 */
30
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/namei.h>
35#include <sys/conf.h>
36#include <sys/proc.h>
37#include <sys/kernel.h>
38#include <sys/vnode.h>
39#include <sys/mount.h>
40#include <sys/buf.h>
41#include <sys/fcntl.h>
42#include <sys/malloc.h>
43#include <sys/systm.h>
44#if defined(__NetBSD__)
45#include <sys/device.h>
46#endif
47
48#include <vm/vm.h>
49#include <vm/vm_param.h>
50#if defined(__NetBSD__)
51#include <vm/vm_prot.h>
52#endif
53#include <vm/vm_page.h>
54#include <vm/vm_object.h>
55#include <vm/vm_extern.h>
56#include <vm/vm_zone.h>
57
58#if defined(__NetBSD__)
59#include <miscfs/specfs/specdev.h>
60#endif
61
62/*#define NTFS_DEBUG 1*/
63#include <ntfs/ntfs.h>
64#include <ntfs/ntfs_inode.h>
65#include <ntfs/ntfs_subr.h>
66#include <ntfs/ntfs_vfsops.h>
67#include <ntfs/ntfs_ihash.h>
68#include <ntfs/ntfsmount.h>
69
70#if defined(__FreeBSD__)
71MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure");
72MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information");
73MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information");
74MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer");
75#endif
76
77static int ntfs_root __P((struct mount *, struct vnode **));
78static int ntfs_statfs __P((struct mount *, struct statfs *,
79 struct proc *));
80static int ntfs_unmount __P((struct mount *, int, struct proc *));
81static int ntfs_vget __P((struct mount *mp, ino_t ino,
82 struct vnode **vpp));
83static int ntfs_mountfs __P((register struct vnode *, struct mount *,
84 struct ntfs_args *, struct proc *));
85static int ntfs_vptofh __P((struct vnode *, struct fid *));
86static int ntfs_fhtovp __P((struct mount *, struct fid *,
87 struct vnode **));
88
89#if !defined (__FreeBSD__)
90static int ntfs_quotactl __P((struct mount *, int, uid_t, caddr_t,
91 struct proc *));
92static int ntfs_start __P((struct mount *, int, struct proc *));
93static int ntfs_sync __P((struct mount *, int, struct ucred *,
94 struct proc *));
95#endif
96
97#if defined(__FreeBSD__)
98struct sockaddr;
99static int ntfs_mount __P((struct mount *, char *, caddr_t,
100 struct nameidata *, struct proc *));
101static int ntfs_init __P((struct vfsconf *));
102static int ntfs_checkexp __P((struct mount *, struct sockaddr *,
103 int *, struct ucred **));
104#elif defined(__NetBSD__)
105static int ntfs_mount __P((struct mount *, const char *, void *,
106 struct nameidata *, struct proc *));
107static void ntfs_init __P((void));
108static int ntfs_mountroot __P((void));
109static int ntfs_sysctl __P((int *, u_int, void *, size_t *, void *,
110 size_t, struct proc *));
111static int ntfs_checkexp __P((struct mount *, struct mbuf *,
112 int *, struct ucred **));
113#endif
114
115/*
116 * Verify a remote client has export rights and return these rights via.
117 * exflagsp and credanonp.
118 */
119static int
120ntfs_checkexp(mp, nam, exflagsp, credanonp)
121#if defined(__FreeBSD__)
122 register struct mount *mp;
123 struct sockaddr *nam;
124 int *exflagsp;
125 struct ucred **credanonp;
126#else /* defined(__NetBSD__) */
127 register struct mount *mp;
128 struct mbuf *nam;
129 int *exflagsp;
130 struct ucred **credanonp;
131#endif
132{
133 register struct netcred *np;
134 register struct ntfsmount *ntm = VFSTONTFS(mp);
135
136 /*
137 * Get the export permission structure for this <mp, client> tuple.
138 */
139 np = vfs_export_lookup(mp, &ntm->ntm_export, nam);
140 if (np == NULL)
141 return (EACCES);
142
143 *exflagsp = np->netc_exflags;
144 *credanonp = &np->netc_anon;
145 return (0);
146}
147
148#if defined(__NetBSD__)
149/*ARGSUSED*/
150static int
151ntfs_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
152 int *name;
153 u_int namelen;
154 void *oldp;
155 size_t *oldlenp;
156 void *newp;
157 size_t newlen;
158 struct proc *p;
159{
160 return (EINVAL);
161}
162
163static int
164ntfs_mountroot()
165{
166 struct mount *mp;
167 extern struct vnode *rootvp;
168 struct proc *p = curproc; /* XXX */
169 int error;
170 struct ntfs_args args;
171
172 if (root_device->dv_class != DV_DISK)
173 return (ENODEV);
174
175 /*
176 * Get vnodes for rootdev.
177 */
178 if (bdevvp(rootdev, &rootvp))
179 panic("ntfs_mountroot: can't setup rootvp");
180
181 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) {
182 vrele(rootvp);
183 return (error);
184 }
185
186 args.flag = 0;
187 args.uid = 0;
188 args.gid = 0;
189 args.mode = 0777;
190
191 if ((error = ntfs_mountfs(rootvp, mp, &args, p)) != 0) {
192 mp->mnt_op->vfs_refcount--;
193 vfs_unbusy(mp);
194 free(mp, M_MOUNT);
195 vrele(rootvp);
196 return (error);
197 }
198
199 simple_lock(&mountlist_slock);
200 CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
201 simple_unlock(&mountlist_slock);
202 (void)ntfs_statfs(mp, &mp->mnt_stat, p);
203 vfs_unbusy(mp);
204 return (0);
205}
206
207static void
208ntfs_init ()
209{
210 ntfs_nthashinit();
211 ntfs_toupper_init();
212}
213
214#elif defined(__FreeBSD__)
215
216static int
217ntfs_init (
218 struct vfsconf *vcp )
219{
220 ntfs_nthashinit();
221 ntfs_toupper_init();
222 return 0;
223}
224
225#endif /* NetBSD */
226
227static int
228ntfs_mount (
229 struct mount *mp,
230#if defined(__FreeBSD__)
231 char *path,
232 caddr_t data,
233#else
234 const char *path,
235 void *data,
236#endif
237 struct nameidata *ndp,
238 struct proc *p )
239{
240 size_t size;
241 int err = 0;
242 struct vnode *devvp;
243 struct ntfs_args args;
244
245#ifdef __FreeBSD__
246 /*
247 * Use NULL path to flag a root mount
248 */
249 if( path == NULL) {
250 /*
251 ***
252 * Mounting root file system
253 ***
254 */
255
256 /* Get vnode for root device*/
257 if( bdevvp( rootdev, &rootvp))
258 panic("ffs_mountroot: can't setup bdevvp for root");
259
260 /*
261 * FS specific handling
262 */
263 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/
264
265 /*
266 * Attempt mount
267 */
268 if( ( err = ntfs_mountfs(rootvp, mp, &args, p)) != 0) {
269 /* fs specific cleanup (if any)*/
270 goto error_1;
271 }
272
273 goto dostatfs; /* success*/
274
275 }
276#endif /* FreeBSD */
277
278 /*
279 ***
280 * Mounting non-root file system or updating a file system
281 ***
282 */
283
284 /* copy in user arguments*/
285 err = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args));
286 if (err)
287 goto error_1; /* can't get arguments*/
288
289 /*
290 * If updating, check whether changing from read-only to
291 * read/write; if there is no device name, that's all we do.
292 */
293 if (mp->mnt_flag & MNT_UPDATE) {
294 /* if not updating name...*/
295 if (args.fspec == 0) {
296 /*
297 * Process export requests. Jumping to "success"
298 * will return the vfs_export() error code.
299 */
300 struct ntfsmount *ntm = VFSTONTFS(mp);
301 err = vfs_export(mp, &ntm->ntm_export, &args.export);
302 goto success;
303 }
304
305 printf("ntfs_mount(): MNT_UPDATE not supported\n");
306 err = EINVAL;
307 goto error_1;
308 }
309
310 /*
311 * Not an update, or updating the name: look up the name
312 * and verify that it refers to a sensible block device.
313 */
314 NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
315 err = namei(ndp);
316 if (err) {
317 /* can't get devvp!*/
318 goto error_1;
319 }
320 NDFREE(ndp, NDF_ONLY_PNBUF);
321 devvp = ndp->ni_vp;
322
323#if defined(__FreeBSD__)
324 if (!vn_isdisk(devvp, &err))
325 goto error_2;
326#else
327 if (devvp->v_type != VBLK) {
328 err = ENOTBLK;
329 goto error_2;
330 }
331 if (major(devvp->v_rdev) >= nblkdev) {
332 err = ENXIO;
333 goto error_2;
334 }
335#endif
336 if (mp->mnt_flag & MNT_UPDATE) {
337#if 0
338 /*
339 ********************
340 * UPDATE
341 ********************
342 */
343
344 if (devvp != ntmp->um_devvp)
345 err = EINVAL; /* needs translation */
346 else
347 vrele(devvp);
348 /*
349 * Update device name only on success
350 */
351 if( !err) {
352 /* Save "mounted from" info for mount point (NULL pad)*/
353 copyinstr( args.fspec,
354 mp->mnt_stat.f_mntfromname,
355 MNAMELEN - 1,
356 &size);
357 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
358 }
359#endif
360 } else {
361 /*
362 ********************
363 * NEW MOUNT
364 ********************
365 */
366
367 /*
368 * Since this is a new mount, we want the names for
369 * the device and the mount point copied in. If an
370 * error occurs, the mountpoint is discarded by the
371 * upper level code.
372 */
373 /* Save "last mounted on" info for mount point (NULL pad)*/
374 copyinstr( path, /* mount point*/
375 mp->mnt_stat.f_mntonname, /* save area*/
376 MNAMELEN - 1, /* max size*/
377 &size); /* real size*/
378 bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
379
380 /* Save "mounted from" info for mount point (NULL pad)*/
381 copyinstr( args.fspec, /* device name*/
382 mp->mnt_stat.f_mntfromname, /* save area*/
383 MNAMELEN - 1, /* max size*/
384 &size); /* real size*/
385 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
386
387 err = ntfs_mountfs(devvp, mp, &args, p);
388 }
389 if (err) {
390 goto error_2;
391 }
392
393#ifdef __FreeBSD__
394dostatfs:
395#endif
396 /*
397 * Initialize FS stat information in mount struct; uses both
398 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname
399 *
400 * This code is common to root and non-root mounts
401 */
402 (void)VFS_STATFS(mp, &mp->mnt_stat, p);
403
404 goto success;
405
406
407error_2: /* error with devvp held*/
408
409 /* release devvp before failing*/
410 vrele(devvp);
411
412error_1: /* no state to back out*/
413
414success:
415 return(err);
416}
417
418/*
419 * Common code for mount and mountroot
420 */
421int
422ntfs_mountfs(devvp, mp, argsp, p)
423 register struct vnode *devvp;
424 struct mount *mp;
425 struct ntfs_args *argsp;
426 struct proc *p;
427{
428 struct buf *bp;
429 struct ntfsmount *ntmp;
430 dev_t dev = devvp->v_rdev;
431 int error, ronly, ncount, i;
432 struct vnode *vp;
433
434 /*
435 * Disallow multiple mounts of the same device.
436 * Disallow mounting of a device that is currently in use
437 * (except for root, which might share swap device for miniroot).
438 * Flush out any old buffers remaining from a previous use.
439 */
440 error = vfs_mountedon(devvp);
441 if (error)
442 return (error);
443 ncount = vcount(devvp);
444#if defined(__FreeBSD__)
445 if (devvp->v_object)
446 ncount -= 1;
447#endif
448 if (ncount > 1 && devvp != rootvp)
449 return (EBUSY);
450#if defined(__FreeBSD__)
451 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, p);
452 error = vinvalbuf(devvp, V_SAVE, p->p_ucred, p, 0, 0);
453 VOP__UNLOCK(devvp, 0, p);
454#else
455 error = vinvalbuf(devvp, V_SAVE, p->p_ucred, p, 0, 0);
456#endif
457 if (error)
458 return (error);
459
460 ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
461 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, p);
462 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, p);
463 VOP__UNLOCK(devvp, 0, p);
464 if (error)
465 return (error);
466
467 bp = NULL;
468
469 error = bread(devvp, BBLOCK, BBSIZE, NOCRED, &bp);
470 if (error)
471 goto out;
472 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK );
473 bzero( ntmp, sizeof *ntmp );
474 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) );
475 brelse( bp );
476 bp = NULL;
477
478 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) {
479 error = EINVAL;
480 dprintf(("ntfs_mountfs: invalid boot block\n"));
481 goto out;
482 }
483
484 {
485 int8_t cpr = ntmp->ntm_mftrecsz;
486 if( cpr > 0 )
487 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr;
488 else
489 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps;
490 }
491 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n",
492 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media,
493 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec));
494 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n",
495 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn));
496
497 ntmp->ntm_mountp = mp;
498 ntmp->ntm_dev = dev;
499 ntmp->ntm_devvp = devvp;
500 ntmp->ntm_uid = argsp->uid;
501 ntmp->ntm_gid = argsp->gid;
502 ntmp->ntm_mode = argsp->mode;
503 ntmp->ntm_flag = argsp->flag;
504
505 /* Copy in the 8-bit to Unicode conversion table */
506 if (argsp->flag & NTFSMNT_U2WTABLE) {
507 ntfs_82u_init(ntmp, argsp->u2w);
508 } else {
509 ntfs_82u_init(ntmp, NULL);
510 }
511
512 /* Initialize Unicode to 8-bit table from 8toU table */
513 ntfs_u28_init(ntmp, ntmp->ntm_82u);
514
515 mp->mnt_data = (qaddr_t)ntmp;
516
517 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n",
518 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.",
519 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"",
520 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode));
521
522 /*
523 * We read in some system nodes to do not allow
524 * reclaim them and to have everytime access to them.
525 */
526 {
527 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO };
528 for (i=0; i<3; i++) {
529 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]]));
530 if(error)
531 goto out1;
532 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM;
533 VREF(ntmp->ntm_sysvn[pi[i]]);
534 vput(ntmp->ntm_sysvn[pi[i]]);
535 }
536 }
537
538 /* read the Unicode lowercase --> uppercase translation table,
539 * if necessary */
540 if ((error = ntfs_toupper_use(mp, ntmp)))
541 goto out1;
542
543 /*
544 * Scan $BitMap and count free clusters
545 */
546 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree);
547 if(error)
548 goto out1;
549
550 /*
551 * Read and translate to internal format attribute
552 * definition file.
553 */
554 {
555 int num,j;
556 struct attrdef ad;
557
558 /* Open $AttrDef */
559 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp );
560 if(error)
561 goto out1;
562
563 /* Count valid entries */
564 for(num=0;;num++) {
565 error = ntfs_readattr(ntmp, VTONT(vp),
566 NTFS_A_DATA, NULL,
567 num * sizeof(ad), sizeof(ad),
568 &ad, NULL);
569 if (error)
570 goto out1;
571 if (ad.ad_name[0] == 0)
572 break;
573 }
574
575 /* Alloc memory for attribute definitions */
576 MALLOC(ntmp->ntm_ad, struct ntvattrdef *,
577 num * sizeof(struct ntvattrdef),
578 M_NTFSMNT, M_WAITOK);
579
580 ntmp->ntm_adnum = num;
581
582 /* Read them and translate */
583 for(i=0;i<num;i++){
584 error = ntfs_readattr(ntmp, VTONT(vp),
585 NTFS_A_DATA, NULL,
586 i * sizeof(ad), sizeof(ad),
587 &ad, NULL);
588 if (error)
589 goto out1;
590 j = 0;
591 do {
592 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j];
593 } while(ad.ad_name[j++]);
594 ntmp->ntm_ad[i].ad_namelen = j - 1;
595 ntmp->ntm_ad[i].ad_type = ad.ad_type;
596 }
597
598 vput(vp);
599 }
600
601#if defined(__FreeBSD__)
602 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev);
603 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
604#else
605 mp->mnt_stat.f_fsid.val[0] = dev;
606 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS);
607#endif
608 mp->mnt_maxsymlinklen = 0;
609 mp->mnt_flag |= MNT_LOCAL;
610 devvp->v_specmountpoint = mp;
611 return (0);
612
613out1:
614 for(i=0;i<NTFS_SYSNODESNUM;i++)
615 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]);
616
617 if (vflush(mp, 0, 0))
618 dprintf(("ntfs_mountfs: vflush failed\n"));
619
620out:
621 devvp->v_specmountpoint = NULL;
622 if (bp)
623 brelse(bp);
624
625#if defined __NetBSD__
626 /* lock the device vnode before calling VOP_CLOSE() */
627 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, p);
628 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, NOCRED, p);
629 VOP__UNLOCK(devvp, 0, p);
630#else
631 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, NOCRED, p);
632#endif
633
634 return (error);
635}
636
637#if !defined(__FreeBSD__)
638static int
639ntfs_start (
640 struct mount *mp,
641 int flags,
642 struct proc *p )
643{
644 return (0);
645}
646#endif
647
648static int
649ntfs_unmount(
650 struct mount *mp,
651 int mntflags,
652 struct proc *p)
653{
654 register struct ntfsmount *ntmp;
655 int error, ronly = 0, flags, i;
656
657 dprintf(("ntfs_unmount: unmounting...\n"));
658 ntmp = VFSTONTFS(mp);
659
660 flags = 0;
661 if(mntflags & MNT_FORCE)
662 flags |= FORCECLOSE;
663
664 dprintf(("ntfs_unmount: vflushing...\n"));
665 error = vflush(mp, 0, flags | SKIPSYSTEM);
666 if (error) {
667 printf("ntfs_unmount: vflush failed: %d\n",error);
668 return (error);
669 }
670
671 /* Check if only system vnodes are rest */
672 for(i=0;i<NTFS_SYSNODESNUM;i++)
673 if((ntmp->ntm_sysvn[i]) &&
674 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY);
675
676 /* Dereference all system vnodes */
677 for(i=0;i<NTFS_SYSNODESNUM;i++)
678 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]);
679
680 /* vflush system vnodes */
681 error = vflush(mp, 0, flags);
682 if (error)
683 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error);
684
685 /* Check if the type of device node isn't VBAD before
686 * touching v_specinfo. If the device vnode is revoked, the
687 * field is NULL and touching it causes null pointer derefercence.
688 */
689 if (ntmp->ntm_devvp->v_type != VBAD)
690 ntmp->ntm_devvp->v_specmountpoint = NULL;
691
692 vinvalbuf(ntmp->ntm_devvp, V_SAVE, NOCRED, p, 0, 0);
693
694#if defined(__NetBSD__)
695 /* lock the device vnode before calling VOP_CLOSE() */
696 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY);
697 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE,
698 NOCRED, p);
699 VOP__UNLOCK(ntmp->ntm_devvp, 0, p);
700#else
701 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE,
702 NOCRED, p);
703#endif
704
705 vrele(ntmp->ntm_devvp);
706
707 /* free the toupper table, if this has been last mounted ntfs volume */
708 ntfs_toupper_unuse();
709
710 dprintf(("ntfs_umount: freeing memory...\n"));
711 ntfs_u28_uninit(ntmp);
712 ntfs_82u_uninit(ntmp);
713 mp->mnt_data = (qaddr_t)0;
714 mp->mnt_flag &= ~MNT_LOCAL;
715 FREE(ntmp->ntm_ad, M_NTFSMNT);
716 FREE(ntmp, M_NTFSMNT);
717 return (error);
718}
719
720static int
721ntfs_root(
722 struct mount *mp,
723 struct vnode **vpp )
724{
725 struct vnode *nvp;
726 int error = 0;
727
728 dprintf(("ntfs_root(): sysvn: %p\n",
729 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO]));
730 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp);
731 if(error) {
732 printf("ntfs_root: VFS_VGET failed: %d\n",error);
733 return (error);
734 }
735
736 *vpp = nvp;
737 return (0);
738}
739
740#if !defined(__FreeBSD__)
741static int
742ntfs_quotactl (
743 struct mount *mp,
744 int cmds,
745 uid_t uid,
746 caddr_t arg,
747 struct proc *p)
748{
749 printf("\nntfs_quotactl():\n");
750 return EOPNOTSUPP;
751}
752#endif
753
754int
755ntfs_calccfree(
756 struct ntfsmount *ntmp,
757 cn_t *cfreep)
758{
759 struct vnode *vp;
760 u_int8_t *tmp;
761 int j, error;
762 long cfree = 0;
763 size_t bmsize, i;
764
765 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO];
766
767 bmsize = VTOF(vp)->f_size;
768
769 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK);
770
771 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
772 0, bmsize, tmp, NULL);
773 if (error)
774 goto out;
775
776 for(i=0;i<bmsize;i++)
777 for(j=0;j<8;j++)
778 if(~tmp[i] & (1 << j)) cfree++;
779 *cfreep = cfree;
780
781 out:
782 FREE(tmp, M_TEMP);
783 return(error);
784}
785
786static int
787ntfs_statfs(
788 struct mount *mp,
789 struct statfs *sbp,
790 struct proc *p)
791{
792 struct ntfsmount *ntmp = VFSTONTFS(mp);
793 u_int64_t mftsize,mftallocated;
794
795 dprintf(("ntfs_statfs():\n"));
796
797 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size;
798 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated;
799
800#if defined(__FreeBSD__)
801 sbp->f_type = mp->mnt_vfc->vfc_typenum;
802#elif defined(__NetBSD__)
803 sbp->f_type = 0;
804#else
805 sbp->f_type = MOUNT_NTFS;
806#endif
807 sbp->f_bsize = ntmp->ntm_bps;
808 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc;
809 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv;
810 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree);
811 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec;
812 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) +
813 sbp->f_ffree;
814 if (sbp != &mp->mnt_stat) {
815 bcopy((caddr_t)mp->mnt_stat.f_mntonname,
816 (caddr_t)&sbp->f_mntonname[0], MNAMELEN);
817 bcopy((caddr_t)mp->mnt_stat.f_mntfromname,
818 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN);
819 }
820 sbp->f_flags = mp->mnt_flag;
821#ifdef __NetBSD__
822 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN);
823#endif
824
825 return (0);
826}
827
828#if !defined(__FreeBSD__)
829static int
830ntfs_sync (
831 struct mount *mp,
832 int waitfor,
833 struct ucred *cred,
834 struct proc *p)
835{
836 /*dprintf(("ntfs_sync():\n"));*/
837 return (0);
838}
839#endif
840
841/*ARGSUSED*/
842static int
843ntfs_fhtovp(
844 struct mount *mp,
845 struct fid *fhp,
846 struct vnode **vpp)
847{
848 struct vnode *nvp;
849 struct ntfid *ntfhp = (struct ntfid *)fhp;
850 int error;
851
852 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino));
853
854 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, &nvp)) != 0) {
855 *vpp = NULLVP;
856 return (error);
857 }
858 /* XXX as unlink/rmdir/mkdir/creat are not currently possible
859 * with NTFS, we don't need to check anything else for now */
860 *vpp = nvp;
861
862 return (0);
863}
864
865static int
866ntfs_vptofh(
867 struct vnode *vp,
868 struct fid *fhp)
869{
870 register struct ntnode *ntp;
871 register struct ntfid *ntfhp;
872
873 ddprintf(("ntfs_fhtovp(): %p\n", vp));
874
875 ntp = VTONT(vp);
876 ntfhp = (struct ntfid *)fhp;
877 ntfhp->ntfid_len = sizeof(struct ntfid);
878 ntfhp->ntfid_ino = ntp->i_number;
879 /* ntfhp->ntfid_gen = ntp->i_gen; */
880 return (0);
881}
882
883int
884ntfs_vgetex(
885 struct mount *mp,
886 ino_t ino,
887 u_int32_t attrtype,
888 char *attrname,
889 u_long lkflags,
890 u_long flags,
891 struct proc *p,
892 struct vnode **vpp)
893{
894 int error;
895 register struct ntfsmount *ntmp;
896 struct ntnode *ip;
897 struct fnode *fp;
898 struct vnode *vp;
899 enum vtype f_type;
900
901 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n",
902 ino, attrtype, attrname?attrname:"", (u_long)lkflags,
903 (u_long)flags ));
904
905 ntmp = VFSTONTFS(mp);
906 *vpp = NULL;
907
908 /* Get ntnode */
909 error = ntfs_ntlookup(ntmp, ino, &ip);
910 if (error) {
911 printf("ntfs_vget: ntfs_ntget failed\n");
912 return (error);
913 }
914
915 /* It may be not initialized fully, so force load it */
916 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) {
917 error = ntfs_loadntnode(ntmp, ip);
918 if(error) {
919 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n",
920 ip->i_number);
921 ntfs_ntput(ip);
922 return (error);
923 }
924 }
925
926 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp);
927 if (error) {
928 printf("ntfs_vget: ntfs_fget failed\n");
929 ntfs_ntput(ip);
930 return (error);
931 }
932
933 f_type = VNON;
934 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) {
935 if ((ip->i_frflag & NTFS_FRFLAG_DIR) &&
936 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) {
937 f_type = VDIR;
938 } else if (flags & VG_EXT) {
939 f_type = VNON;
940 fp->f_size = fp->f_allocated = 0;
941 } else {
942 f_type = VREG;
943
944 error = ntfs_filesize(ntmp, fp,
945 &fp->f_size, &fp->f_allocated);
946 if (error) {
947 ntfs_ntput(ip);
948 return (error);
949 }
950 }
951
952 fp->f_flag |= FN_VALID;
953 }
954
955 if (FTOV(fp)) {
956 VGET(FTOV(fp), lkflags, p);
957 *vpp = FTOV(fp);
958 ntfs_ntput(ip);
959 return (0);
960 }
961
962 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, ntfs_vnodeop_p, &vp);
963 if(error) {
964 ntfs_frele(fp);
965 ntfs_ntput(ip);
966 return (error);
967 }
968 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino));
969
970#ifdef __FreeBSD__
971 lockinit(&fp->f_lock, PINOD, "fnode", VLKTIMEOUT, 0);
972#endif
973 fp->f_vp = vp;
974 vp->v_data = fp;
975 vp->v_type = f_type;
976
977 if (ino == NTFS_ROOTINO)
978 vp->v_flag |= VROOT;
979
980 ntfs_ntput(ip);
981
982 if (lkflags & LK_TYPE_MASK) {
983 error = VN_LOCK(vp, lkflags, p);
984 if (error) {
985 vput(vp);
986 return (error);
987 }
988 }
989
990 *vpp = vp;
991 return (0);
992
993}
994
995static int
996ntfs_vget(
997 struct mount *mp,
998 ino_t ino,
999 struct vnode **vpp)
1000{
1001 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL,
1002 LK_EXCLUSIVE | LK_RETRY, 0, curproc, vpp);
1003}
1004
1005#if defined(__FreeBSD__)
1006static struct vfsops ntfs_vfsops = {
1007 ntfs_mount,
1008 vfs_stdstart,
1009 ntfs_unmount,
1010 ntfs_root,
1011 vfs_stdquotactl,
1012 ntfs_statfs,
1013 vfs_stdsync,
1014 ntfs_vget,
1015 ntfs_fhtovp,
1016 ntfs_checkexp,
1017 ntfs_vptofh,
1018 ntfs_init,
1019 vfs_stduninit,
1020 vfs_stdextattrctl,
1021};
1022VFS_SET(ntfs_vfsops, ntfs, 0);
1023#elif defined(__NetBSD__)
1024extern struct vnodeopv_desc ntfs_vnodeop_opv_desc;
1025
1026struct vnodeopv_desc *ntfs_vnodeopv_descs[] = {
1027 &ntfs_vnodeop_opv_desc,
1028 NULL,
1029};
1030
1031struct vfsops ntfs_vfsops = {
1032 MOUNT_NTFS,
1033 ntfs_mount,
1034 ntfs_start,
1035 ntfs_unmount,
1036 ntfs_root,
1037 ntfs_quotactl,
1038 ntfs_statfs,
1039 ntfs_sync,
1040 ntfs_vget,
1041 ntfs_fhtovp,
1042 ntfs_vptofh,
1043 ntfs_init,
1044 ntfs_sysctl,
1045 ntfs_mountroot,
1046 ntfs_checkexp,
1047 ntfs_vnodeopv_descs,
1048};
1049#else /* !NetBSD && !FreeBSD */
1050static struct vfsops ntfs_vfsops = {
1051 ntfs_mount,
1052 ntfs_start,
1053 ntfs_unmount,
1054 ntfs_root,
1055 ntfs_quotactl,
1056 ntfs_statfs,
1057 ntfs_sync,
1058 ntfs_vget,
1059 ntfs_fhtovp,
1060 ntfs_vptofh,
1061 ntfs_init,
1062};
1063VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0);
1064#endif
1065
1066