Update less to version 381.
[dragonfly.git] / sys / vfs / ntfs / ntfs_vfsops.c
CommitLineData
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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 $
41a01a4d 29 * $DragonFly: src/sys/vfs/ntfs/ntfs_vfsops.c,v 1.13 2004/03/01 06:33:22 dillon Exp $
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30 */
31
32
33#include <sys/param.h>
34#include <sys/systm.h>
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35#include <sys/conf.h>
36#include <sys/proc.h>
dadab5e9 37#include <sys/namei.h>
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38#include <sys/kernel.h>
39#include <sys/vnode.h>
40#include <sys/mount.h>
41#include <sys/buf.h>
42#include <sys/fcntl.h>
43#include <sys/malloc.h>
44#include <sys/systm.h>
45#if defined(__NetBSD__)
46#include <sys/device.h>
47#endif
48
49#include <vm/vm.h>
50#include <vm/vm_param.h>
51#if defined(__NetBSD__)
52#include <vm/vm_prot.h>
53#endif
54#include <vm/vm_page.h>
55#include <vm/vm_object.h>
56#include <vm/vm_extern.h>
57#include <vm/vm_zone.h>
58
59#if defined(__NetBSD__)
60#include <miscfs/specfs/specdev.h>
61#endif
62
63/*#define NTFS_DEBUG 1*/
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64#include "ntfs.h"
65#include "ntfs_inode.h"
66#include "ntfs_subr.h"
67#include "ntfs_vfsops.h"
68#include "ntfs_ihash.h"
69#include "ntfsmount.h"
984263bc 70
08c23b99 71#if defined(__DragonFly__)
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72MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure");
73MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information");
74MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information");
75MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer");
76#endif
77
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78static int ntfs_root (struct mount *, struct vnode **);
79static int ntfs_statfs (struct mount *, struct statfs *,
80 struct thread *);
81static int ntfs_unmount (struct mount *, int, struct thread *);
82static int ntfs_vget (struct mount *mp, ino_t ino,
83 struct vnode **vpp);
84static int ntfs_mountfs (struct vnode *, struct mount *,
85 struct ntfs_args *, struct thread *);
86static int ntfs_vptofh (struct vnode *, struct fid *);
87static int ntfs_fhtovp (struct mount *, struct fid *,
88 struct vnode **);
984263bc 89
08c23b99 90#if !defined (__DragonFly__)
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91static int ntfs_quotactl (struct mount *, int, uid_t, caddr_t,
92 struct thread *);
93static int ntfs_start (struct mount *, int, struct thread *);
94static int ntfs_sync (struct mount *, int, struct ucred *,
95 struct thread *);
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96#endif
97
08c23b99 98#if defined(__DragonFly__)
984263bc 99struct sockaddr;
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100static int ntfs_mount (struct mount *, char *, caddr_t,
101 struct nameidata *, struct thread *);
102static int ntfs_init (struct vfsconf *);
103static int ntfs_checkexp (struct mount *, struct sockaddr *,
104 int *, struct ucred **);
984263bc 105#elif defined(__NetBSD__)
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106static int ntfs_mount (struct mount *, const char *, void *,
107 struct nameidata *, struct thread *);
108static void ntfs_init (void);
109static int ntfs_mountroot (void);
110static int ntfs_sysctl (int *, u_int, void *, size_t *, void *,
111 size_t, struct thread *);
112static int ntfs_checkexp (struct mount *, struct mbuf *,
113 int *, struct ucred **);
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114#endif
115
116/*
117 * Verify a remote client has export rights and return these rights via.
118 * exflagsp and credanonp.
119 */
120static int
121ntfs_checkexp(mp, nam, exflagsp, credanonp)
08c23b99 122#if defined(__DragonFly__)
34ee9825 123 struct mount *mp;
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124 struct sockaddr *nam;
125 int *exflagsp;
126 struct ucred **credanonp;
127#else /* defined(__NetBSD__) */
34ee9825 128 struct mount *mp;
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129 struct mbuf *nam;
130 int *exflagsp;
131 struct ucred **credanonp;
132#endif
133{
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134 struct netcred *np;
135 struct ntfsmount *ntm = VFSTONTFS(mp);
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136
137 /*
138 * Get the export permission structure for this <mp, client> tuple.
139 */
140 np = vfs_export_lookup(mp, &ntm->ntm_export, nam);
141 if (np == NULL)
142 return (EACCES);
143
144 *exflagsp = np->netc_exflags;
145 *credanonp = &np->netc_anon;
146 return (0);
147}
148
149#if defined(__NetBSD__)
150/*ARGSUSED*/
151static int
dadab5e9 152ntfs_sysctl(name, namelen, oldp, oldlenp, newp, newlen, td)
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153 int *name;
154 u_int namelen;
155 void *oldp;
156 size_t *oldlenp;
157 void *newp;
158 size_t newlen;
dadab5e9 159 struct thread *td;
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160{
161 return (EINVAL);
162}
163
164static int
165ntfs_mountroot()
166{
167 struct mount *mp;
168 extern struct vnode *rootvp;
dadab5e9 169 struct thread *td = curthread; /* XXX */
984263bc 170 struct ntfs_args args;
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171 lwkt_tokref ilock;
172 int error;
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173
174 if (root_device->dv_class != DV_DISK)
175 return (ENODEV);
176
177 /*
178 * Get vnodes for rootdev.
179 */
180 if (bdevvp(rootdev, &rootvp))
181 panic("ntfs_mountroot: can't setup rootvp");
182
183 if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) {
184 vrele(rootvp);
185 return (error);
186 }
187
188 args.flag = 0;
189 args.uid = 0;
190 args.gid = 0;
191 args.mode = 0777;
192
dadab5e9 193 if ((error = ntfs_mountfs(rootvp, mp, &args, td)) != 0) {
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194 mp->mnt_op->vfs_refcount--;
195 vfs_unbusy(mp);
196 free(mp, M_MOUNT);
197 vrele(rootvp);
198 return (error);
199 }
200
41a01a4d 201 lwkt_gettoken(&ilock, &mountlist_token);
984263bc 202 CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
41a01a4d 203 lwkt_reltoken(&ilock);
dadab5e9 204 (void)ntfs_statfs(mp, &mp->mnt_stat, td);
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205 vfs_unbusy(mp);
206 return (0);
207}
208
209static void
210ntfs_init ()
211{
212 ntfs_nthashinit();
213 ntfs_toupper_init();
214}
215
08c23b99 216#elif defined(__DragonFly__)
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217
218static int
219ntfs_init (
220 struct vfsconf *vcp )
221{
222 ntfs_nthashinit();
223 ntfs_toupper_init();
224 return 0;
225}
226
227#endif /* NetBSD */
228
229static int
230ntfs_mount (
231 struct mount *mp,
08c23b99 232#if defined(__DragonFly__)
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233 char *path,
234 caddr_t data,
235#else
236 const char *path,
237 void *data,
238#endif
239 struct nameidata *ndp,
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240 struct thread *td
241) {
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242 size_t size;
243 int err = 0;
244 struct vnode *devvp;
245 struct ntfs_args args;
246
08c23b99 247#ifdef __DragonFly__
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248 /*
249 * Use NULL path to flag a root mount
250 */
251 if( path == NULL) {
252 /*
253 ***
254 * Mounting root file system
255 ***
256 */
257
258 /* Get vnode for root device*/
259 if( bdevvp( rootdev, &rootvp))
260 panic("ffs_mountroot: can't setup bdevvp for root");
261
262 /*
263 * FS specific handling
264 */
265 mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/
266
267 /*
268 * Attempt mount
269 */
dadab5e9 270 if( ( err = ntfs_mountfs(rootvp, mp, &args, td)) != 0) {
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271 /* fs specific cleanup (if any)*/
272 goto error_1;
273 }
274
275 goto dostatfs; /* success*/
276
277 }
278#endif /* FreeBSD */
279
280 /*
281 ***
282 * Mounting non-root file system or updating a file system
283 ***
284 */
285
286 /* copy in user arguments*/
287 err = copyin(data, (caddr_t)&args, sizeof (struct ntfs_args));
288 if (err)
289 goto error_1; /* can't get arguments*/
290
291 /*
292 * If updating, check whether changing from read-only to
293 * read/write; if there is no device name, that's all we do.
294 */
295 if (mp->mnt_flag & MNT_UPDATE) {
296 /* if not updating name...*/
297 if (args.fspec == 0) {
298 /*
299 * Process export requests. Jumping to "success"
300 * will return the vfs_export() error code.
301 */
302 struct ntfsmount *ntm = VFSTONTFS(mp);
303 err = vfs_export(mp, &ntm->ntm_export, &args.export);
304 goto success;
305 }
306
307 printf("ntfs_mount(): MNT_UPDATE not supported\n");
308 err = EINVAL;
309 goto error_1;
310 }
311
312 /*
313 * Not an update, or updating the name: look up the name
314 * and verify that it refers to a sensible block device.
315 */
2b69e610 316 NDINIT(ndp, NAMEI_LOOKUP, CNP_FOLLOW, UIO_USERSPACE, args.fspec, td);
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317 err = namei(ndp);
318 if (err) {
319 /* can't get devvp!*/
320 goto error_1;
321 }
322 NDFREE(ndp, NDF_ONLY_PNBUF);
323 devvp = ndp->ni_vp;
324
08c23b99 325#if defined(__DragonFly__)
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326 if (!vn_isdisk(devvp, &err))
327 goto error_2;
328#else
329 if (devvp->v_type != VBLK) {
330 err = ENOTBLK;
331 goto error_2;
332 }
333 if (major(devvp->v_rdev) >= nblkdev) {
334 err = ENXIO;
335 goto error_2;
336 }
337#endif
338 if (mp->mnt_flag & MNT_UPDATE) {
339#if 0
340 /*
341 ********************
342 * UPDATE
343 ********************
344 */
345
346 if (devvp != ntmp->um_devvp)
347 err = EINVAL; /* needs translation */
348 else
349 vrele(devvp);
350 /*
351 * Update device name only on success
352 */
353 if( !err) {
354 /* Save "mounted from" info for mount point (NULL pad)*/
355 copyinstr( args.fspec,
356 mp->mnt_stat.f_mntfromname,
357 MNAMELEN - 1,
358 &size);
359 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
360 }
361#endif
362 } else {
363 /*
364 ********************
365 * NEW MOUNT
366 ********************
367 */
368
369 /*
370 * Since this is a new mount, we want the names for
371 * the device and the mount point copied in. If an
372 * error occurs, the mountpoint is discarded by the
373 * upper level code.
374 */
375 /* Save "last mounted on" info for mount point (NULL pad)*/
376 copyinstr( path, /* mount point*/
377 mp->mnt_stat.f_mntonname, /* save area*/
378 MNAMELEN - 1, /* max size*/
379 &size); /* real size*/
380 bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
381
382 /* Save "mounted from" info for mount point (NULL pad)*/
383 copyinstr( args.fspec, /* device name*/
384 mp->mnt_stat.f_mntfromname, /* save area*/
385 MNAMELEN - 1, /* max size*/
386 &size); /* real size*/
387 bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
388
dadab5e9 389 err = ntfs_mountfs(devvp, mp, &args, td);
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390 }
391 if (err) {
392 goto error_2;
393 }
394
08c23b99 395#ifdef __DragonFly__
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396dostatfs:
397#endif
398 /*
399 * Initialize FS stat information in mount struct; uses both
400 * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname
401 *
402 * This code is common to root and non-root mounts
403 */
dadab5e9 404 (void)VFS_STATFS(mp, &mp->mnt_stat, td);
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405
406 goto success;
407
408
409error_2: /* error with devvp held*/
410
411 /* release devvp before failing*/
412 vrele(devvp);
413
414error_1: /* no state to back out*/
415
416success:
417 return(err);
418}
419
420/*
421 * Common code for mount and mountroot
422 */
423int
dadab5e9 424ntfs_mountfs(devvp, mp, argsp, td)
34ee9825 425 struct vnode *devvp;
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426 struct mount *mp;
427 struct ntfs_args *argsp;
dadab5e9 428 struct thread *td;
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429{
430 struct buf *bp;
431 struct ntfsmount *ntmp;
432 dev_t dev = devvp->v_rdev;
433 int error, ronly, ncount, i;
434 struct vnode *vp;
dadab5e9
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435 struct ucred *cred;
436
437 KKASSERT(td->td_proc);
438 cred = td->td_proc->p_ucred;
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439
440 /*
441 * Disallow multiple mounts of the same device.
442 * Disallow mounting of a device that is currently in use
443 * (except for root, which might share swap device for miniroot).
444 * Flush out any old buffers remaining from a previous use.
445 */
446 error = vfs_mountedon(devvp);
447 if (error)
448 return (error);
449 ncount = vcount(devvp);
08c23b99 450#if defined(__DragonFly__)
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451 if (devvp->v_object)
452 ncount -= 1;
453#endif
454 if (ncount > 1 && devvp != rootvp)
455 return (EBUSY);
08c23b99 456#if defined(__DragonFly__)
dadab5e9 457 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td);
3b568787 458 error = vinvalbuf(devvp, V_SAVE, td, 0, 0);
dadab5e9 459 VOP__UNLOCK(devvp, 0, td);
984263bc 460#else
3b568787 461 error = vinvalbuf(devvp, V_SAVE, td, 0, 0);
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462#endif
463 if (error)
464 return (error);
465
466 ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
dadab5e9
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467 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td);
468 error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, td);
469 VOP__UNLOCK(devvp, 0, td);
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470 if (error)
471 return (error);
472
473 bp = NULL;
474
3b568787 475 error = bread(devvp, BBLOCK, BBSIZE, &bp);
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476 if (error)
477 goto out;
478 ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK );
479 bzero( ntmp, sizeof *ntmp );
480 bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) );
481 brelse( bp );
482 bp = NULL;
483
484 if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) {
485 error = EINVAL;
486 dprintf(("ntfs_mountfs: invalid boot block\n"));
487 goto out;
488 }
489
490 {
491 int8_t cpr = ntmp->ntm_mftrecsz;
492 if( cpr > 0 )
493 ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr;
494 else
495 ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps;
496 }
497 dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n",
498 ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media,
499 ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec));
500 dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n",
501 (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn));
502
503 ntmp->ntm_mountp = mp;
504 ntmp->ntm_dev = dev;
505 ntmp->ntm_devvp = devvp;
506 ntmp->ntm_uid = argsp->uid;
507 ntmp->ntm_gid = argsp->gid;
508 ntmp->ntm_mode = argsp->mode;
509 ntmp->ntm_flag = argsp->flag;
510
511 /* Copy in the 8-bit to Unicode conversion table */
512 if (argsp->flag & NTFSMNT_U2WTABLE) {
513 ntfs_82u_init(ntmp, argsp->u2w);
514 } else {
515 ntfs_82u_init(ntmp, NULL);
516 }
517
518 /* Initialize Unicode to 8-bit table from 8toU table */
519 ntfs_u28_init(ntmp, ntmp->ntm_82u);
520
521 mp->mnt_data = (qaddr_t)ntmp;
522
523 dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n",
524 (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.",
525 (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"",
526 ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode));
527
528 /*
529 * We read in some system nodes to do not allow
530 * reclaim them and to have everytime access to them.
531 */
532 {
533 int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO };
534 for (i=0; i<3; i++) {
535 error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]]));
536 if(error)
537 goto out1;
538 ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM;
539 VREF(ntmp->ntm_sysvn[pi[i]]);
540 vput(ntmp->ntm_sysvn[pi[i]]);
541 }
542 }
543
544 /* read the Unicode lowercase --> uppercase translation table,
545 * if necessary */
546 if ((error = ntfs_toupper_use(mp, ntmp)))
547 goto out1;
548
549 /*
550 * Scan $BitMap and count free clusters
551 */
552 error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree);
553 if(error)
554 goto out1;
555
556 /*
557 * Read and translate to internal format attribute
558 * definition file.
559 */
560 {
561 int num,j;
562 struct attrdef ad;
563
564 /* Open $AttrDef */
565 error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp );
566 if(error)
567 goto out1;
568
569 /* Count valid entries */
570 for(num=0;;num++) {
571 error = ntfs_readattr(ntmp, VTONT(vp),
572 NTFS_A_DATA, NULL,
573 num * sizeof(ad), sizeof(ad),
574 &ad, NULL);
575 if (error)
576 goto out1;
577 if (ad.ad_name[0] == 0)
578 break;
579 }
580
581 /* Alloc memory for attribute definitions */
582 MALLOC(ntmp->ntm_ad, struct ntvattrdef *,
583 num * sizeof(struct ntvattrdef),
584 M_NTFSMNT, M_WAITOK);
585
586 ntmp->ntm_adnum = num;
587
588 /* Read them and translate */
589 for(i=0;i<num;i++){
590 error = ntfs_readattr(ntmp, VTONT(vp),
591 NTFS_A_DATA, NULL,
592 i * sizeof(ad), sizeof(ad),
593 &ad, NULL);
594 if (error)
595 goto out1;
596 j = 0;
597 do {
598 ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j];
599 } while(ad.ad_name[j++]);
600 ntmp->ntm_ad[i].ad_namelen = j - 1;
601 ntmp->ntm_ad[i].ad_type = ad.ad_type;
602 }
603
604 vput(vp);
605 }
606
08c23b99 607#if defined(__DragonFly__)
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608 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev);
609 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
610#else
611 mp->mnt_stat.f_fsid.val[0] = dev;
612 mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS);
613#endif
614 mp->mnt_maxsymlinklen = 0;
615 mp->mnt_flag |= MNT_LOCAL;
616 devvp->v_specmountpoint = mp;
617 return (0);
618
619out1:
620 for(i=0;i<NTFS_SYSNODESNUM;i++)
621 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]);
622
623 if (vflush(mp, 0, 0))
624 dprintf(("ntfs_mountfs: vflush failed\n"));
625
626out:
627 devvp->v_specmountpoint = NULL;
628 if (bp)
629 brelse(bp);
630
631#if defined __NetBSD__
632 /* lock the device vnode before calling VOP_CLOSE() */
dadab5e9 633 VN_LOCK(devvp, LK_EXCLUSIVE | LK_RETRY, td);
3b568787 634 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td);
dadab5e9 635 VOP__UNLOCK(devvp, 0, td);
984263bc 636#else
3b568787 637 (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, td);
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638#endif
639
640 return (error);
641}
642
08c23b99 643#if !defined(__DragonFly__)
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644static int
645ntfs_start (
646 struct mount *mp,
647 int flags,
dadab5e9 648 struct thread *td)
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649{
650 return (0);
651}
652#endif
653
654static int
655ntfs_unmount(
656 struct mount *mp,
657 int mntflags,
dadab5e9 658 struct thread *td)
984263bc 659{
34ee9825 660 struct ntfsmount *ntmp;
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661 int error, ronly = 0, flags, i;
662
663 dprintf(("ntfs_unmount: unmounting...\n"));
664 ntmp = VFSTONTFS(mp);
665
666 flags = 0;
667 if(mntflags & MNT_FORCE)
668 flags |= FORCECLOSE;
669
670 dprintf(("ntfs_unmount: vflushing...\n"));
671 error = vflush(mp, 0, flags | SKIPSYSTEM);
672 if (error) {
673 printf("ntfs_unmount: vflush failed: %d\n",error);
674 return (error);
675 }
676
677 /* Check if only system vnodes are rest */
678 for(i=0;i<NTFS_SYSNODESNUM;i++)
679 if((ntmp->ntm_sysvn[i]) &&
680 (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY);
681
682 /* Dereference all system vnodes */
683 for(i=0;i<NTFS_SYSNODESNUM;i++)
684 if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]);
685
686 /* vflush system vnodes */
687 error = vflush(mp, 0, flags);
688 if (error)
689 printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error);
690
691 /* Check if the type of device node isn't VBAD before
692 * touching v_specinfo. If the device vnode is revoked, the
693 * field is NULL and touching it causes null pointer derefercence.
694 */
695 if (ntmp->ntm_devvp->v_type != VBAD)
696 ntmp->ntm_devvp->v_specmountpoint = NULL;
697
3b568787 698 vinvalbuf(ntmp->ntm_devvp, V_SAVE, td, 0, 0);
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699
700#if defined(__NetBSD__)
701 /* lock the device vnode before calling VOP_CLOSE() */
702 VOP_LOCK(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY);
3b568787 703 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td);
dadab5e9 704 VOP__UNLOCK(ntmp->ntm_devvp, 0, td);
984263bc 705#else
3b568787 706 error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE, td);
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707#endif
708
709 vrele(ntmp->ntm_devvp);
710
711 /* free the toupper table, if this has been last mounted ntfs volume */
712 ntfs_toupper_unuse();
713
714 dprintf(("ntfs_umount: freeing memory...\n"));
715 ntfs_u28_uninit(ntmp);
716 ntfs_82u_uninit(ntmp);
717 mp->mnt_data = (qaddr_t)0;
718 mp->mnt_flag &= ~MNT_LOCAL;
719 FREE(ntmp->ntm_ad, M_NTFSMNT);
720 FREE(ntmp, M_NTFSMNT);
721 return (error);
722}
723
724static int
725ntfs_root(
726 struct mount *mp,
727 struct vnode **vpp )
728{
729 struct vnode *nvp;
730 int error = 0;
731
732 dprintf(("ntfs_root(): sysvn: %p\n",
733 VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO]));
734 error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp);
735 if(error) {
736 printf("ntfs_root: VFS_VGET failed: %d\n",error);
737 return (error);
738 }
739
740 *vpp = nvp;
741 return (0);
742}
743
08c23b99 744#if !defined(__DragonFly__)
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745static int
746ntfs_quotactl (
747 struct mount *mp,
748 int cmds,
749 uid_t uid,
750 caddr_t arg,
dadab5e9 751 struct thread *td)
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752{
753 printf("\nntfs_quotactl():\n");
754 return EOPNOTSUPP;
755}
756#endif
757
758int
759ntfs_calccfree(
760 struct ntfsmount *ntmp,
761 cn_t *cfreep)
762{
763 struct vnode *vp;
764 u_int8_t *tmp;
765 int j, error;
766 long cfree = 0;
767 size_t bmsize, i;
768
769 vp = ntmp->ntm_sysvn[NTFS_BITMAPINO];
770
771 bmsize = VTOF(vp)->f_size;
772
773 MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK);
774
775 error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
776 0, bmsize, tmp, NULL);
777 if (error)
778 goto out;
779
780 for(i=0;i<bmsize;i++)
781 for(j=0;j<8;j++)
782 if(~tmp[i] & (1 << j)) cfree++;
783 *cfreep = cfree;
784
785 out:
786 FREE(tmp, M_TEMP);
787 return(error);
788}
789
790static int
791ntfs_statfs(
792 struct mount *mp,
793 struct statfs *sbp,
dadab5e9 794 struct thread *td)
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795{
796 struct ntfsmount *ntmp = VFSTONTFS(mp);
797 u_int64_t mftsize,mftallocated;
798
799 dprintf(("ntfs_statfs():\n"));
800
801 mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size;
802 mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated;
803
08c23b99 804#if defined(__DragonFly__)
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805 sbp->f_type = mp->mnt_vfc->vfc_typenum;
806#elif defined(__NetBSD__)
807 sbp->f_type = 0;
808#else
809 sbp->f_type = MOUNT_NTFS;
810#endif
811 sbp->f_bsize = ntmp->ntm_bps;
812 sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc;
813 sbp->f_blocks = ntmp->ntm_bootfile.bf_spv;
814 sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree);
815 sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec;
816 sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) +
817 sbp->f_ffree;
818 if (sbp != &mp->mnt_stat) {
819 bcopy((caddr_t)mp->mnt_stat.f_mntonname,
820 (caddr_t)&sbp->f_mntonname[0], MNAMELEN);
821 bcopy((caddr_t)mp->mnt_stat.f_mntfromname,
822 (caddr_t)&sbp->f_mntfromname[0], MNAMELEN);
823 }
824 sbp->f_flags = mp->mnt_flag;
825#ifdef __NetBSD__
826 strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN);
827#endif
828
829 return (0);
830}
831
08c23b99 832#if !defined(__DragonFly__)
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833static int
834ntfs_sync (
835 struct mount *mp,
836 int waitfor,
837 struct ucred *cred,
dadab5e9 838 struct thread *td)
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839{
840 /*dprintf(("ntfs_sync():\n"));*/
841 return (0);
842}
843#endif
844
845/*ARGSUSED*/
846static int
847ntfs_fhtovp(
848 struct mount *mp,
849 struct fid *fhp,
850 struct vnode **vpp)
851{
852 struct vnode *nvp;
853 struct ntfid *ntfhp = (struct ntfid *)fhp;
854 int error;
855
856 ddprintf(("ntfs_fhtovp(): %d\n", ntfhp->ntfid_ino));
857
858 if ((error = VFS_VGET(mp, ntfhp->ntfid_ino, &nvp)) != 0) {
859 *vpp = NULLVP;
860 return (error);
861 }
862 /* XXX as unlink/rmdir/mkdir/creat are not currently possible
863 * with NTFS, we don't need to check anything else for now */
864 *vpp = nvp;
865
866 return (0);
867}
868
869static int
870ntfs_vptofh(
871 struct vnode *vp,
872 struct fid *fhp)
873{
34ee9825
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874 struct ntnode *ntp;
875 struct ntfid *ntfhp;
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876
877 ddprintf(("ntfs_fhtovp(): %p\n", vp));
878
879 ntp = VTONT(vp);
880 ntfhp = (struct ntfid *)fhp;
881 ntfhp->ntfid_len = sizeof(struct ntfid);
882 ntfhp->ntfid_ino = ntp->i_number;
883 /* ntfhp->ntfid_gen = ntp->i_gen; */
884 return (0);
885}
886
887int
888ntfs_vgetex(
889 struct mount *mp,
890 ino_t ino,
891 u_int32_t attrtype,
892 char *attrname,
893 u_long lkflags,
894 u_long flags,
dadab5e9 895 struct thread *td,
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896 struct vnode **vpp)
897{
898 int error;
34ee9825 899 struct ntfsmount *ntmp;
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900 struct ntnode *ip;
901 struct fnode *fp;
902 struct vnode *vp;
903 enum vtype f_type;
904
905 dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n",
906 ino, attrtype, attrname?attrname:"", (u_long)lkflags,
907 (u_long)flags ));
908
909 ntmp = VFSTONTFS(mp);
910 *vpp = NULL;
911
912 /* Get ntnode */
913 error = ntfs_ntlookup(ntmp, ino, &ip);
914 if (error) {
915 printf("ntfs_vget: ntfs_ntget failed\n");
916 return (error);
917 }
918
919 /* It may be not initialized fully, so force load it */
920 if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) {
921 error = ntfs_loadntnode(ntmp, ip);
922 if(error) {
923 printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: %d\n",
924 ip->i_number);
925 ntfs_ntput(ip);
926 return (error);
927 }
928 }
929
930 error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp);
931 if (error) {
932 printf("ntfs_vget: ntfs_fget failed\n");
933 ntfs_ntput(ip);
934 return (error);
935 }
936
937 f_type = VNON;
938 if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) {
939 if ((ip->i_frflag & NTFS_FRFLAG_DIR) &&
940 (fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) {
941 f_type = VDIR;
942 } else if (flags & VG_EXT) {
943 f_type = VNON;
944 fp->f_size = fp->f_allocated = 0;
945 } else {
946 f_type = VREG;
947
948 error = ntfs_filesize(ntmp, fp,
949 &fp->f_size, &fp->f_allocated);
950 if (error) {
951 ntfs_ntput(ip);
952 return (error);
953 }
954 }
955
956 fp->f_flag |= FN_VALID;
957 }
958
959 if (FTOV(fp)) {
dadab5e9 960 VGET(FTOV(fp), lkflags, td);
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961 *vpp = FTOV(fp);
962 ntfs_ntput(ip);
963 return (0);
964 }
965
966 error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, ntfs_vnodeop_p, &vp);
967 if(error) {
968 ntfs_frele(fp);
969 ntfs_ntput(ip);
970 return (error);
971 }
972 dprintf(("ntfs_vget: vnode: %p for ntnode: %d\n", vp,ino));
973
08c23b99 974#ifdef __DragonFly__
377d4740 975 lockinit(&fp->f_lock, 0, "fnode", VLKTIMEOUT, 0);
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976#endif
977 fp->f_vp = vp;
978 vp->v_data = fp;
979 vp->v_type = f_type;
980
981 if (ino == NTFS_ROOTINO)
982 vp->v_flag |= VROOT;
983
984 ntfs_ntput(ip);
985
986 if (lkflags & LK_TYPE_MASK) {
41a01a4d 987 KKASSERT((lkflags & LK_INTERLOCK) == 0);
dadab5e9 988 error = VN_LOCK(vp, lkflags, td);
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989 if (error) {
990 vput(vp);
991 return (error);
992 }
993 }
994
995 *vpp = vp;
996 return (0);
997
998}
999
1000static int
1001ntfs_vget(
1002 struct mount *mp,
1003 ino_t ino,
1004 struct vnode **vpp)
1005{
1006 return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL,
dadab5e9 1007 LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp);
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1008}
1009
08c23b99 1010#if defined(__DragonFly__)
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1011static struct vfsops ntfs_vfsops = {
1012 ntfs_mount,
1013 vfs_stdstart,
1014 ntfs_unmount,
1015 ntfs_root,
1016 vfs_stdquotactl,
1017 ntfs_statfs,
1018 vfs_stdsync,
1019 ntfs_vget,
1020 ntfs_fhtovp,
1021 ntfs_checkexp,
1022 ntfs_vptofh,
1023 ntfs_init,
6baa4fd6 1024 ntfs_nthash_uninit, /* see ntfs_ihash.c */
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1025 vfs_stdextattrctl,
1026};
1027VFS_SET(ntfs_vfsops, ntfs, 0);
1028#elif defined(__NetBSD__)
1029extern struct vnodeopv_desc ntfs_vnodeop_opv_desc;
1030
1031struct vnodeopv_desc *ntfs_vnodeopv_descs[] = {
1032 &ntfs_vnodeop_opv_desc,
1033 NULL,
1034};
1035
1036struct vfsops ntfs_vfsops = {
1037 MOUNT_NTFS,
1038 ntfs_mount,
1039 ntfs_start,
1040 ntfs_unmount,
1041 ntfs_root,
1042 ntfs_quotactl,
1043 ntfs_statfs,
1044 ntfs_sync,
1045 ntfs_vget,
1046 ntfs_fhtovp,
1047 ntfs_vptofh,
1048 ntfs_init,
1049 ntfs_sysctl,
1050 ntfs_mountroot,
1051 ntfs_checkexp,
1052 ntfs_vnodeopv_descs,
1053};
1054#else /* !NetBSD && !FreeBSD */
1055static struct vfsops ntfs_vfsops = {
1056 ntfs_mount,
1057 ntfs_start,
1058 ntfs_unmount,
1059 ntfs_root,
1060 ntfs_quotactl,
1061 ntfs_statfs,
1062 ntfs_sync,
1063 ntfs_vget,
1064 ntfs_fhtovp,
1065 ntfs_vptofh,
1066 ntfs_init,
1067};
1068VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0);
1069#endif
1070
1071