Add kernel-layer support for chflags checks, remove (most) from the VFS layer.
[dragonfly.git] / sys / vfs / hpfs / hpfs_vnops.c
CommitLineData
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1/*-
2 * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org)
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/fs/hpfs/hpfs_vnops.c,v 1.2.2.2 2002/01/15 18:35:09 semenu Exp $
e92ca23a 27 * $DragonFly: src/sys/vfs/hpfs/hpfs_vnops.c,v 1.47 2008/06/19 23:27:39 dillon Exp $
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28 */
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/kernel.h>
33#include <sys/proc.h>
895c1f85 34#include <sys/priv.h>
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35#include <sys/time.h>
36#include <sys/types.h>
37#include <sys/stat.h>
38#include <sys/vnode.h>
39#include <sys/mount.h>
40#include <sys/namei.h>
41#include <sys/malloc.h>
42#include <sys/buf.h>
43#include <sys/dirent.h>
44
0c50e491
JS
45#include <machine/limits.h>
46
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47#include <vm/vm.h>
48#include <vm/vm_param.h>
08c23b99 49#if !defined(__DragonFly__)
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50#include <vm/vm_prot.h>
51#endif
52#include <vm/vm_page.h>
53#include <vm/vm_object.h>
54#include <vm/vm_pager.h>
55#include <vm/vm_zone.h>
08c23b99 56#if defined(__DragonFly__)
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MD
57#include <vm/vnode_pager.h>
58#endif
59#include <vm/vm_extern.h>
7d1b9a3b 60#include <sys/buf2.h>
984263bc 61
08c23b99 62#if !defined(__DragonFly__)
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63#include <miscfs/specfs/specdev.h>
64#include <miscfs/genfs/genfs.h>
65#endif
66
67#include <sys/unistd.h> /* for pathconf(2) constants */
68
1f2de5d4
MD
69#include "hpfs.h"
70#include "hpfsmount.h"
71#include "hpfs_subr.h"
72#include "hpfs_ioctl.h"
984263bc 73
957d9419
SS
74static int hpfs_de_uiomove (int *, struct hpfsmount *,
75 struct hpfsdirent *, struct uio *);
a6ee311a
RG
76static int hpfs_ioctl (struct vop_ioctl_args *ap);
77static int hpfs_read (struct vop_read_args *);
78static int hpfs_write (struct vop_write_args *ap);
79static int hpfs_getattr (struct vop_getattr_args *ap);
80static int hpfs_setattr (struct vop_setattr_args *ap);
81static int hpfs_inactive (struct vop_inactive_args *ap);
82static int hpfs_print (struct vop_print_args *ap);
83static int hpfs_reclaim (struct vop_reclaim_args *ap);
84static int hpfs_strategy (struct vop_strategy_args *ap);
85static int hpfs_access (struct vop_access_args *ap);
a6ee311a 86static int hpfs_readdir (struct vop_readdir_args *ap);
e62afb5f
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87static int hpfs_lookup (struct vop_old_lookup_args *ap);
88static int hpfs_create (struct vop_old_create_args *);
89static int hpfs_remove (struct vop_old_remove_args *);
a6ee311a 90static int hpfs_bmap (struct vop_bmap_args *ap);
08c23b99 91#if defined(__DragonFly__)
a6ee311a 92static int hpfs_fsync (struct vop_fsync_args *ap);
984263bc 93#endif
a6ee311a 94static int hpfs_pathconf (struct vop_pathconf_args *ap);
984263bc 95
08c23b99 96#if defined(__DragonFly__)
984263bc 97
dd3af26c 98/*
b478fdce 99 * hpfs_fsync(struct vnode *a_vp, int a_waitfor)
dd3af26c 100 */
984263bc 101static int
dd3af26c 102hpfs_fsync(struct vop_fsync_args *ap)
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103{
104 struct vnode *vp = ap->a_vp;
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105
106 /*
107 * Flush all dirty buffers associated with a vnode.
108 */
6bae6177 109#ifdef DIAGNOSTIC
984263bc 110loop:
6bae6177 111#endif
4e0ecc94 112 vfsync(vp, ap->a_waitfor, 0, NULL, NULL);
984263bc 113#ifdef DIAGNOSTIC
6bae6177 114 if (ap->a_waitfor == MNT_WAIT && !RB_EMPTY(&vp->v_rbdirty_tree)) {
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115 vprint("hpfs_fsync: dirty", vp);
116 goto loop;
117 }
118#endif
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119
120 /*
121 * Write out the on-disc version of the vnode.
122 */
123 return hpfs_update(VTOHP(vp));
124}
125
126#endif
127
dd3af26c
CP
128/*
129 * hpfs_ioctl(struct vnode *a_vp, u_long a_command, caddr_t a_data,
b478fdce 130 * int a_fflag, struct ucred *a_cred)
dd3af26c 131 */
984263bc 132static int
dd3af26c 133hpfs_ioctl(struct vop_ioctl_args *ap)
984263bc 134{
f7aae92f
RG
135 struct vnode *vp = ap->a_vp;
136 struct hpfsnode *hp = VTOHP(vp);
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MD
137 int error;
138
086c1d7e 139 kprintf("hpfs_ioctl(0x%x, 0x%lx, 0x%p, 0x%x): ",
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MD
140 hp->h_no, ap->a_command, ap->a_data, ap->a_fflag);
141
142 switch (ap->a_command) {
143 case HPFSIOCGEANUM: {
144 u_long eanum;
145 u_long passed;
146 struct ea *eap;
147
148 eanum = 0;
149
150 if (hp->h_fn.fn_ealen > 0) {
151 eap = (struct ea *)&(hp->h_fn.fn_int);
152 passed = 0;
153
154 while (passed < hp->h_fn.fn_ealen) {
155
086c1d7e 156 kprintf("EAname: %s\n", EA_NAME(eap));
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157
158 eanum++;
159 passed += sizeof(struct ea) +
160 eap->ea_namelen + 1 + eap->ea_vallen;
161 eap = (struct ea *)((caddr_t)hp->h_fn.fn_int +
162 passed);
163 }
164 error = 0;
165 } else {
166 error = ENOENT;
167 }
168
086c1d7e 169 kprintf("%lu eas\n", eanum);
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170
171 *(u_long *)ap->a_data = eanum;
172
173 break;
174 }
175 case HPFSIOCGEASZ: {
176 u_long eanum;
177 u_long passed;
178 struct ea *eap;
179
086c1d7e 180 kprintf("EA%ld\n", *(u_long *)ap->a_data);
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181
182 eanum = 0;
183 if (hp->h_fn.fn_ealen > 0) {
184 eap = (struct ea *)&(hp->h_fn.fn_int);
185 passed = 0;
186
187 error = ENOENT;
188 while (passed < hp->h_fn.fn_ealen) {
086c1d7e 189 kprintf("EAname: %s\n", EA_NAME(eap));
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190
191 if (eanum == *(u_long *)ap->a_data) {
192 *(u_long *)ap->a_data =
193 eap->ea_namelen + 1 +
194 eap->ea_vallen;
195
196 error = 0;
197 break;
198 }
199
200 eanum++;
201 passed += sizeof(struct ea) +
202 eap->ea_namelen + 1 + eap->ea_vallen;
203 eap = (struct ea *)((caddr_t)hp->h_fn.fn_int +
204 passed);
205 }
206 } else {
207 error = ENOENT;
208 }
209
210 break;
211 }
212 case HPFSIOCRDEA: {
213 u_long eanum;
214 u_long passed;
215 struct hpfs_rdea *rdeap;
216 struct ea *eap;
217
218 rdeap = (struct hpfs_rdea *)ap->a_data;
086c1d7e 219 kprintf("EA%ld\n", rdeap->ea_no);
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220
221 eanum = 0;
222 if (hp->h_fn.fn_ealen > 0) {
223 eap = (struct ea *)&(hp->h_fn.fn_int);
224 passed = 0;
225
226 error = ENOENT;
227 while (passed < hp->h_fn.fn_ealen) {
086c1d7e 228 kprintf("EAname: %s\n", EA_NAME(eap));
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229
230 if (eanum == rdeap->ea_no) {
231 rdeap->ea_sz = eap->ea_namelen + 1 +
232 eap->ea_vallen;
233 copyout(EA_NAME(eap),rdeap->ea_data,
234 rdeap->ea_sz);
235 error = 0;
236 break;
237 }
238
239 eanum++;
240 passed += sizeof(struct ea) +
241 eap->ea_namelen + 1 + eap->ea_vallen;
242 eap = (struct ea *)((caddr_t)hp->h_fn.fn_int +
243 passed);
244 }
245 } else {
246 error = ENOENT;
247 }
248
249 break;
250 }
251 default:
252 error = EOPNOTSUPP;
253 break;
254 }
255 return (error);
256}
257
258/*
259 * Map file offset to disk offset.
dd3af26c 260 *
08daea96 261 * hpfs_bmap(struct vnode *a_vp, off_t a_loffset,
54078292 262 * off_t *a_doffsetp, int *a_runp, int *a_runb)
984263bc
MD
263 */
264int
dd3af26c 265hpfs_bmap(struct vop_bmap_args *ap)
984263bc 266{
f7aae92f 267 struct hpfsnode *hp = VTOHP(ap->a_vp);
984263bc 268 int error;
54078292
MD
269 daddr_t lbn;
270 daddr_t dbn;
984263bc 271
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MD
272 if (ap->a_runb != NULL)
273 *ap->a_runb = 0;
54078292 274 if (ap->a_doffsetp == NULL)
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MD
275 return (0);
276
277 dprintf(("hpfs_bmap(0x%x, 0x%x): ",hp->h_no, ap->a_bn));
278
54078292
MD
279 lbn = ap->a_loffset >> DEV_BSHIFT;
280 KKASSERT(((int)ap->a_loffset & DEV_BMASK) == 0);
984263bc 281
54078292
MD
282 error = hpfs_hpbmap (hp, lbn, &dbn, ap->a_runp);
283 if (error || dbn == (daddr_t)-1) {
284 *ap->a_doffsetp = NOOFFSET;
285 } else {
286 *ap->a_doffsetp = (off_t)dbn << DEV_BSHIFT;
287 }
984263bc
MD
288 return (error);
289}
290
dd3af26c
CP
291/*
292 * hpfs_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
293 * struct ucred *a_cred)
294 */
984263bc 295static int
dd3af26c 296hpfs_read(struct vop_read_args *ap)
984263bc 297{
f7aae92f
RG
298 struct vnode *vp = ap->a_vp;
299 struct hpfsnode *hp = VTOHP(vp);
984263bc
MD
300 struct uio *uio = ap->a_uio;
301 struct buf *bp;
302 u_int xfersz, toread;
303 u_int off;
304 daddr_t lbn, bn;
305 int resid;
306 int runl;
307 int error = 0;
308
309 resid = min (uio->uio_resid, hp->h_fn.fn_size - uio->uio_offset);
310
311 dprintf(("hpfs_read(0x%x, off: %d resid: %d, segflg: %d): [resid: 0x%x]\n",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg, resid));
312
313 while (resid) {
314 lbn = uio->uio_offset >> DEV_BSHIFT;
315 off = uio->uio_offset & (DEV_BSIZE - 1);
316 dprintf(("hpfs_read: resid: 0x%x lbn: 0x%x off: 0x%x\n",
317 uio->uio_resid, lbn, off));
318 error = hpfs_hpbmap(hp, lbn, &bn, &runl);
319 if (error)
320 return (error);
321
322 toread = min(off + resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE));
323 xfersz = (toread + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
324 dprintf(("hpfs_read: bn: 0x%x (0x%x) toread: 0x%x (0x%x)\n",
325 bn, runl, toread, xfersz));
326
327 if (toread == 0)
328 break;
329
54078292 330 error = bread(hp->h_devvp, dbtodoff(bn), xfersz, &bp);
984263bc
MD
331 if (error) {
332 brelse(bp);
333 break;
334 }
335
336 error = uiomove(bp->b_data + off, toread - off, uio);
337 if(error) {
338 brelse(bp);
339 break;
340 }
341 brelse(bp);
342 resid -= toread;
343 }
344 dprintf(("hpfs_read: successful\n"));
345 return (error);
346}
347
dd3af26c
CP
348/*
349 * hpfs_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
350 * struct ucred *a_cred)
351 */
984263bc 352static int
dd3af26c 353hpfs_write(struct vop_write_args *ap)
984263bc 354{
f7aae92f
RG
355 struct vnode *vp = ap->a_vp;
356 struct hpfsnode *hp = VTOHP(vp);
984263bc
MD
357 struct uio *uio = ap->a_uio;
358 struct buf *bp;
359 u_int xfersz, towrite;
360 u_int off;
361 daddr_t lbn, bn;
362 int runl;
363 int error = 0;
364
365 dprintf(("hpfs_write(0x%x, off: %d resid: %d, segflg: %d):\n",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg));
366
367 if (ap->a_ioflag & IO_APPEND) {
368 dprintf(("hpfs_write: APPEND mode\n"));
369 uio->uio_offset = hp->h_fn.fn_size;
370 }
371 if (uio->uio_offset + uio->uio_resid > hp->h_fn.fn_size) {
372 error = hpfs_extend (hp, uio->uio_offset + uio->uio_resid);
373 if (error) {
086c1d7e 374 kprintf("hpfs_write: hpfs_extend FAILED %d\n", error);
984263bc
MD
375 return (error);
376 }
377 }
378
379 while (uio->uio_resid) {
380 lbn = uio->uio_offset >> DEV_BSHIFT;
381 off = uio->uio_offset & (DEV_BSIZE - 1);
382 dprintf(("hpfs_write: resid: 0x%x lbn: 0x%x off: 0x%x\n",
383 uio->uio_resid, lbn, off));
384 error = hpfs_hpbmap(hp, lbn, &bn, &runl);
385 if (error)
386 return (error);
387
388 towrite = min(off + uio->uio_resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE));
389 xfersz = (towrite + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
390 dprintf(("hpfs_write: bn: 0x%x (0x%x) towrite: 0x%x (0x%x)\n",
391 bn, runl, towrite, xfersz));
392
8aa7625b
MD
393 /*
394 * We do not have to issue a read-before-write if the xfer
395 * size does not cover the whole block.
396 *
397 * In the UIO_NOCOPY case, however, we are not overwriting
398 * anything and must do a read-before-write to fill in
399 * any missing pieces.
400 */
401 if (off == 0 && towrite == xfersz &&
402 uio->uio_segflg != UIO_NOCOPY) {
54078292 403 bp = getblk(hp->h_devvp, dbtodoff(bn), xfersz, 0, 0);
984263bc
MD
404 clrbuf(bp);
405 } else {
54078292 406 error = bread(hp->h_devvp, dbtodoff(bn), xfersz, &bp);
984263bc
MD
407 if (error) {
408 brelse(bp);
409 return (error);
410 }
411 }
412
413 error = uiomove(bp->b_data + off, towrite - off, uio);
414 if(error) {
415 brelse(bp);
416 return (error);
417 }
418
419 if (ap->a_ioflag & IO_SYNC)
420 bwrite(bp);
421 else
422 bawrite(bp);
423 }
424
425 dprintf(("hpfs_write: successful\n"));
426 return (0);
427}
428
429/*
430 * XXXXX do we need hpfsnode locking inside?
dd3af26c 431 *
b478fdce 432 * hpfs_getattr(struct vnode *a_vp, struct vattr *a_vap)
984263bc
MD
433 */
434static int
dd3af26c 435hpfs_getattr(struct vop_getattr_args *ap)
984263bc 436{
f7aae92f
RG
437 struct vnode *vp = ap->a_vp;
438 struct hpfsnode *hp = VTOHP(vp);
439 struct vattr *vap = ap->a_vap;
984263bc
MD
440 int error;
441
442 dprintf(("hpfs_getattr(0x%x):\n", hp->h_no));
443
08c23b99 444#if defined(__DragonFly__)
984263bc
MD
445 vap->va_fsid = dev2udev(hp->h_dev);
446#else /* defined(__NetBSD__) */
447 vap->va_fsid = ip->i_dev;
448#endif
449 vap->va_fileid = hp->h_no;
450 vap->va_mode = hp->h_mode;
451 vap->va_nlink = 1;
452 vap->va_uid = hp->h_uid;
453 vap->va_gid = hp->h_gid;
0e9b9130
MD
454 vap->va_rmajor = VNOVAL;
455 vap->va_rminor = VNOVAL;
984263bc
MD
456 vap->va_size = hp->h_fn.fn_size;
457 vap->va_bytes = ((hp->h_fn.fn_size + DEV_BSIZE-1) & ~(DEV_BSIZE-1)) +
458 DEV_BSIZE;
459
460 if (!(hp->h_flag & H_PARVALID)) {
461 error = hpfs_validateparent(hp);
462 if (error)
463 return (error);
464 }
465 vap->va_atime = hpfstimetounix(hp->h_atime);
466 vap->va_mtime = hpfstimetounix(hp->h_mtime);
467 vap->va_ctime = hpfstimetounix(hp->h_ctime);
468
469 vap->va_flags = 0;
470 vap->va_gen = 0;
471 vap->va_blocksize = DEV_BSIZE;
472 vap->va_type = vp->v_type;
473 vap->va_filerev = 0;
474
475 return (0);
476}
477
478/*
479 * XXXXX do we need hpfsnode locking inside?
dd3af26c 480 *
b478fdce 481 * hpfs_setattr(struct vnode *a_vp, struct vattr *a_vap, struct ucred *a_cred)
984263bc
MD
482 */
483static int
dd3af26c 484hpfs_setattr(struct vop_setattr_args *ap)
984263bc
MD
485{
486 struct vnode *vp = ap->a_vp;
487 struct hpfsnode *hp = VTOHP(vp);
488 struct vattr *vap = ap->a_vap;
489 struct ucred *cred = ap->a_cred;
984263bc
MD
490 int error;
491
492 dprintf(("hpfs_setattr(0x%x):\n", hp->h_no));
493
494 /*
495 * Check for unsettable attributes.
496 */
497 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
498 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
0e9b9130 499 (vap->va_blocksize != VNOVAL) || (vap->va_rmajor != VNOVAL) ||
984263bc
MD
500 (vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
501 dprintf(("hpfs_setattr: changing nonsettable attr\n"));
502 return (EINVAL);
503 }
504
505 /* Can't change flags XXX Could be implemented */
506 if (vap->va_flags != VNOVAL) {
086c1d7e 507 kprintf("hpfs_setattr: FLAGS CANNOT BE SET\n");
984263bc
MD
508 return (EINVAL);
509 }
510
511 /* Can't change uid/gid XXX Could be implemented */
512 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
086c1d7e 513 kprintf("hpfs_setattr: UID/GID CANNOT BE SET\n");
984263bc
MD
514 return (EINVAL);
515 }
516
517 /* Can't change mode XXX Could be implemented */
518 if (vap->va_mode != (mode_t)VNOVAL) {
086c1d7e 519 kprintf("hpfs_setattr: MODE CANNOT BE SET\n");
984263bc
MD
520 return (EINVAL);
521 }
522
523 /* Update times */
524 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
525 if (vp->v_mount->mnt_flag & MNT_RDONLY)
526 return (EROFS);
527 if (cred->cr_uid != hp->h_uid &&
895c1f85 528 (error = priv_check_cred(cred, PRIV_ROOT, PRISON_ROOT)) &&
984263bc 529 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
87de5057 530 (error = VOP_ACCESS(vp, VWRITE, cred))))
984263bc
MD
531 return (error);
532 if (vap->va_atime.tv_sec != VNOVAL)
533 hp->h_atime = vap->va_atime.tv_sec;
534 if (vap->va_mtime.tv_sec != VNOVAL)
535 hp->h_mtime = vap->va_mtime.tv_sec;
536
537 hp->h_flag |= H_PARCHANGE;
538 }
539
540 if (vap->va_size != VNOVAL) {
541 switch (vp->v_type) {
542 case VDIR:
543 return (EISDIR);
544 case VREG:
545 if (vp->v_mount->mnt_flag & MNT_RDONLY)
546 return (EROFS);
547 break;
548 default:
086c1d7e 549 kprintf("hpfs_setattr: WRONG v_type\n");
984263bc
MD
550 return (EINVAL);
551 }
552
553 if (vap->va_size < hp->h_fn.fn_size) {
08c23b99 554#if defined(__DragonFly__)
87de5057 555 error = vtruncbuf(vp, vap->va_size, DEV_BSIZE);
984263bc
MD
556 if (error)
557 return (error);
558#else /* defined(__NetBSD__) */
559#error Need alternation for vtruncbuf()
560#endif
561 error = hpfs_truncate(hp, vap->va_size);
562 if (error)
563 return (error);
564
565 } else if (vap->va_size > hp->h_fn.fn_size) {
08c23b99 566#if defined(__DragonFly__)
984263bc
MD
567 vnode_pager_setsize(vp, vap->va_size);
568#endif
569 error = hpfs_extend(hp, vap->va_size);
570 if (error)
571 return (error);
572 }
573 }
574
575 return (0);
576}
577
578/*
579 * Last reference to an node. If necessary, write or delete it.
dd3af26c
CP
580 *
581 * hpfs_inactive(struct vnode *a_vp)
984263bc
MD
582 */
583int
dd3af26c 584hpfs_inactive(struct vop_inactive_args *ap)
984263bc 585{
f7aae92f
RG
586 struct vnode *vp = ap->a_vp;
587 struct hpfsnode *hp = VTOHP(vp);
984263bc
MD
588 int error;
589
590 dprintf(("hpfs_inactive(0x%x): \n", hp->h_no));
591
592 if (hp->h_flag & H_CHANGE) {
593 dprintf(("hpfs_inactive: node changed, update\n"));
594 error = hpfs_update (hp);
595 if (error)
596 return (error);
597 }
598
599 if (hp->h_flag & H_PARCHANGE) {
600 dprintf(("hpfs_inactive: parent node changed, update\n"));
601 error = hpfs_updateparent (hp);
602 if (error)
603 return (error);
604 }
605
3c37c940 606 if (prtactive && vp->v_sysref.refcnt > 1)
984263bc
MD
607 vprint("hpfs_inactive: pushing active", vp);
608
609 if (hp->h_flag & H_INVAL) {
08c23b99 610#if defined(__DragonFly__)
87de5057 611 vrecycle(vp);
984263bc
MD
612#else /* defined(__NetBSD__) */
613 vgone(vp);
614#endif
615 return (0);
616 }
984263bc
MD
617 return (0);
618}
619
620/*
621 * Reclaim an inode so that it can be used for other purposes.
dd3af26c
CP
622 *
623 * hpfs_reclaim(struct vnode *a_vp)
984263bc
MD
624 */
625int
dd3af26c 626hpfs_reclaim(struct vop_reclaim_args *ap)
984263bc 627{
f7aae92f
RG
628 struct vnode *vp = ap->a_vp;
629 struct hpfsnode *hp = VTOHP(vp);
984263bc
MD
630
631 dprintf(("hpfs_reclaim(0x%x0): \n", hp->h_no));
632
633 hpfs_hphashrem(hp);
634
635 /* Purge old data structures associated with the inode. */
984263bc
MD
636 if (hp->h_devvp) {
637 vrele(hp->h_devvp);
638 hp->h_devvp = NULL;
639 }
640
641 vp->v_data = NULL;
642
643 FREE(hp, M_HPFSNO);
644
645 return (0);
646}
647
dd3af26c
CP
648/*
649 * hpfs_print(struct vnode *a_vp)
650 */
984263bc 651static int
dd3af26c 652hpfs_print(struct vop_print_args *ap)
984263bc 653{
f7aae92f
RG
654 struct vnode *vp = ap->a_vp;
655 struct hpfsnode *hp = VTOHP(vp);
984263bc 656
086c1d7e 657 kprintf("tag VT_HPFS, ino 0x%x",hp->h_no);
3446c007 658 lockmgr_printinfo(&vp->v_lock);
086c1d7e 659 kprintf("\n");
984263bc
MD
660 return (0);
661}
662
663/*
664 * Calculate the logical to physical mapping if not done already,
665 * then call the device strategy routine.
666 *
667 * In order to be able to swap to a file, the VOP_BMAP operation may not
668 * deadlock on memory. See hpfs_bmap() for details. XXXXXXX (not impl)
dd3af26c 669 *
81b5c339 670 * hpfs_strategy(struct vnode *a_vp, struct bio *a_bio)
984263bc
MD
671 */
672int
dd3af26c 673hpfs_strategy(struct vop_strategy_args *ap)
984263bc 674{
81b5c339
MD
675 struct bio *bio = ap->a_bio;
676 struct bio *nbio;
677 struct buf *bp = bio->bio_buf;
f7aae92f 678 struct vnode *vp = ap->a_vp;
81b5c339 679 struct hpfsnode *hp;
984263bc
MD
680 int error;
681
682 dprintf(("hpfs_strategy(): \n"));
683
684 if (vp->v_type == VBLK || vp->v_type == VCHR)
685 panic("hpfs_strategy: spec");
81b5c339
MD
686
687 nbio = push_bio(bio);
54078292 688 if (nbio->bio_offset == NOOFFSET) {
08daea96 689 error = VOP_BMAP(vp, bio->bio_offset, &nbio->bio_offset,
e92ca23a 690 NULL, NULL, bp->b_cmd);
984263bc 691 if (error) {
086c1d7e 692 kprintf("hpfs_strategy: VOP_BMAP FAILED %d\n", error);
984263bc
MD
693 bp->b_error = error;
694 bp->b_flags |= B_ERROR;
81b5c339
MD
695 /* I/O was never started on nbio, must biodone(bio) */
696 biodone(bio);
984263bc
MD
697 return (error);
698 }
54078292 699 if (nbio->bio_offset == NOOFFSET)
984263bc
MD
700 vfs_bio_clrbuf(bp);
701 }
54078292 702 if (nbio->bio_offset == NOOFFSET) {
81b5c339
MD
703 /* I/O was never started on nbio, must biodone(bio) */
704 biodone(bio);
984263bc
MD
705 return (0);
706 }
81b5c339
MD
707 hp = VTOHP(ap->a_vp);
708 vn_strategy(hp->h_devvp, nbio);
984263bc
MD
709 return (0);
710}
711
712/*
713 * XXXXX do we need hpfsnode locking inside?
dd3af26c 714 *
b478fdce 715 * hpfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred)
984263bc
MD
716 */
717int
dd3af26c 718hpfs_access(struct vop_access_args *ap)
984263bc
MD
719{
720 struct vnode *vp = ap->a_vp;
721 struct hpfsnode *hp = VTOHP(vp);
722 struct ucred *cred = ap->a_cred;
723 mode_t mask, mode = ap->a_mode;
f7aae92f 724 gid_t *gp;
984263bc
MD
725 int i;
726
727 dprintf(("hpfs_access(0x%x):\n", hp->h_no));
728
729 /*
730 * Disallow write attempts on read-only file systems;
731 * unless the file is a socket, fifo, or a block or
732 * character device resident on the file system.
733 */
734 if (mode & VWRITE) {
735 switch ((int)vp->v_type) {
736 case VDIR:
737 case VLNK:
738 case VREG:
739 if (vp->v_mount->mnt_flag & MNT_RDONLY)
740 return (EROFS);
741 break;
742 }
743 }
744
745 /* Otherwise, user id 0 always gets access. */
746 if (cred->cr_uid == 0)
747 return (0);
748
749 mask = 0;
750
751 /* Otherwise, check the owner. */
752 if (cred->cr_uid == hp->h_uid) {
753 if (mode & VEXEC)
754 mask |= S_IXUSR;
755 if (mode & VREAD)
756 mask |= S_IRUSR;
757 if (mode & VWRITE)
758 mask |= S_IWUSR;
759 return ((hp->h_mode & mask) == mask ? 0 : EACCES);
760 }
761
762 /* Otherwise, check the groups. */
763 for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++)
764 if (hp->h_gid == *gp) {
765 if (mode & VEXEC)
766 mask |= S_IXGRP;
767 if (mode & VREAD)
768 mask |= S_IRGRP;
769 if (mode & VWRITE)
770 mask |= S_IWGRP;
771 return ((hp->h_mode & mask) == mask ? 0 : EACCES);
772 }
773
774 /* Otherwise, check everyone else. */
775 if (mode & VEXEC)
776 mask |= S_IXOTH;
777 if (mode & VREAD)
778 mask |= S_IROTH;
779 if (mode & VWRITE)
780 mask |= S_IWOTH;
781 return ((hp->h_mode & mask) == mask ? 0 : EACCES);
782}
783
984263bc 784static int
957d9419 785hpfs_de_uiomove(int *error, struct hpfsmount *hpmp, struct hpfsdirent *dep,
dd3af26c 786 struct uio *uio)
984263bc 787{
0c50e491 788 char convname[HPFS_MAXFILENAME + 1];
957d9419 789 int i, success;
984263bc
MD
790
791 dprintf(("[no: 0x%x, size: %d, name: %2d:%.*s, flag: 0x%x] ",
792 dep->de_fnode, dep->de_size, dep->de_namelen,
793 dep->de_namelen, dep->de_name, dep->de_flag));
794
795 /*strncpy(cde.d_name, dep->de_name, dep->de_namelen);*/
796 for (i=0; i<dep->de_namelen; i++)
957d9419
SS
797 convname[i] = hpfs_d2u(hpmp, dep->de_name[i]);
798 convname[dep->de_namelen] = '\0';
984263bc 799
957d9419
SS
800 success = vop_write_dirent(error, uio, dep->de_fnode,
801 (dep->de_flag & DE_DIR) ? DT_DIR : DT_REG,
802 dep->de_namelen, convname);
984263bc 803
984263bc 804 dprintf(("[0x%x] ", uio->uio_resid));
957d9419 805 return (success);
984263bc
MD
806}
807
808
dd3af26c
CP
809/*
810 * hpfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
84009d92 811 * int *a_ncookies, off_t **cookies)
dd3af26c 812 */
984263bc 813int
dd3af26c 814hpfs_readdir(struct vop_readdir_args *ap)
984263bc 815{
f7aae92f
RG
816 struct vnode *vp = ap->a_vp;
817 struct hpfsnode *hp = VTOHP(vp);
984263bc
MD
818 struct hpfsmount *hpmp = hp->h_hpmp;
819 struct uio *uio = ap->a_uio;
820 int ncookies = 0, i, num, cnum;
821 int error = 0;
984263bc
MD
822 struct buf *bp;
823 struct dirblk *dp;
824 struct hpfsdirent *dep;
825 lsn_t olsn;
826 lsn_t lsn;
827 int level;
828
829 dprintf(("hpfs_readdir(0x%x, 0x%x, 0x%x): ",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid));
830
957d9419 831 /*
ad079f69
SS
832 * As we need to fake up . and .., and the remaining directory structure
833 * can't be expressed in one off_t as well, we just increment uio_offset
834 * by 1 for each entry.
835 *
957d9419
SS
836 * num is the entry we need to start reporting
837 * cnum is the current entry
838 */
0c50e491
JS
839 if (uio->uio_offset < 0 || uio->uio_offset > INT_MAX)
840 return(EINVAL);
885ecb13
MD
841 if ((error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY)) != 0)
842 return (error);
843
957d9419
SS
844 num = uio->uio_offset;
845 cnum = 0;
846
957d9419 847 if( num <= cnum ) {
984263bc 848 dprintf((". faked, "));
957d9419 849 if (vop_write_dirent(&error, uio, hp->h_no, DT_DIR, 1, "."))
885ecb13
MD
850 goto done;
851 if (error)
852 goto done;
984263bc
MD
853 ncookies ++;
854 }
957d9419 855 cnum++;
984263bc 856
957d9419 857 if( num <= cnum ) {
984263bc 858 dprintf((".. faked, "));
957d9419
SS
859 if (vop_write_dirent(&error, uio, hp->h_fn.fn_parent, DT_DIR, 2, ".."))
860 goto readdone;
885ecb13
MD
861 if (error)
862 goto done;
984263bc
MD
863 ncookies ++;
864 }
957d9419 865 cnum++;
984263bc
MD
866
867 lsn = ((alleaf_t *)hp->h_fn.fn_abd)->al_lsn;
868
869 olsn = 0;
870 level = 1;
871
872dive:
873 dprintf(("[dive 0x%x] ", lsn));
54078292 874 error = bread(hp->h_devvp, dbtodoff(lsn), D_BSIZE, &bp);
984263bc
MD
875 if (error) {
876 brelse(bp);
885ecb13 877 goto done;
984263bc
MD
878 }
879
880 dp = (struct dirblk *) bp->b_data;
881 if (dp->d_magic != D_MAGIC) {
086c1d7e 882 kprintf("hpfs_readdir: MAGIC DOESN'T MATCH\n");
984263bc 883 brelse(bp);
885ecb13
MD
884 error = EINVAL;
885 goto done;
984263bc
MD
886 }
887
888 dep = D_DIRENT(dp);
889
890 if (olsn) {
891 dprintf(("[restore 0x%x] ", olsn));
892
893 while(!(dep->de_flag & DE_END) ) {
894 if((dep->de_flag & DE_DOWN) &&
895 (olsn == DE_DOWNLSN(dep)))
896 break;
897 dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen);
898 }
899
900 if((dep->de_flag & DE_DOWN) && (olsn == DE_DOWNLSN(dep))) {
901 if (dep->de_flag & DE_END)
902 goto blockdone;
903
904 if (!(dep->de_flag & DE_SPECIAL)) {
905 if (num <= cnum) {
957d9419 906 if (hpfs_de_uiomove(&error, hpmp, dep, uio)) {
984263bc
MD
907 brelse(bp);
908 dprintf(("[resid] "));
909 goto readdone;
910 }
984263bc
MD
911 if (error) {
912 brelse (bp);
885ecb13 913 goto done;
984263bc
MD
914 }
915 ncookies++;
984263bc
MD
916 }
917 cnum++;
918 }
919
920 dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen);
921 } else {
086c1d7e 922 kprintf("hpfs_readdir: ERROR! oLSN not found\n");
984263bc 923 brelse(bp);
885ecb13
MD
924 error = EINVAL;
925 goto done;
984263bc
MD
926 }
927 }
928
929 olsn = 0;
930
931 while(!(dep->de_flag & DE_END)) {
932 if(dep->de_flag & DE_DOWN) {
933 lsn = DE_DOWNLSN(dep);
934 brelse(bp);
935 level++;
936 goto dive;
937 }
938
939 if (!(dep->de_flag & DE_SPECIAL)) {
940 if (num <= cnum) {
957d9419 941 if (hpfs_de_uiomove(&error, hpmp, dep, uio)) {
984263bc
MD
942 brelse(bp);
943 dprintf(("[resid] "));
944 goto readdone;
945 }
984263bc
MD
946 if (error) {
947 brelse (bp);
885ecb13 948 goto done;
984263bc
MD
949 }
950 ncookies++;
984263bc
MD
951 }
952 cnum++;
953 }
954
955 dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen);
956 }
957
958 if(dep->de_flag & DE_DOWN) {
959 dprintf(("[enddive] "));
960 lsn = DE_DOWNLSN(dep);
961 brelse(bp);
962 level++;
963 goto dive;
964 }
965
966blockdone:
967 dprintf(("[EOB] "));
968 olsn = lsn;
969 lsn = dp->d_parent;
970 brelse(bp);
971 level--;
972
973 dprintf(("[level %d] ", level));
974
975 if (level > 0)
976 goto dive; /* undive really */
977
978 if (ap->a_eofflag) {
979 dprintf(("[EOF] "));
980 *ap->a_eofflag = 1;
981 }
982
983readdone:
957d9419 984 uio->uio_offset = cnum;
984263bc
MD
985 dprintf(("[readdone]\n"));
986 if (!error && ap->a_ncookies != NULL) {
984263bc
MD
987 off_t *cookies;
988 off_t *cookiep;
984263bc
MD
989
990 dprintf(("%d cookies, ",ncookies));
991 if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
992 panic("hpfs_readdir: unexpected uio from NFS server");
984263bc
MD
993 MALLOC(cookies, off_t *, ncookies * sizeof(off_t),
994 M_TEMP, M_WAITOK);
957d9419 995 for (cookiep = cookies, i=0; i < ncookies; i++)
84009d92 996 *cookiep++ = ++num;
957d9419 997
984263bc
MD
998 *ap->a_ncookies = ncookies;
999 *ap->a_cookies = cookies;
1000 }
1001
885ecb13
MD
1002done:
1003 vn_unlock(ap->a_vp);
1004 return (error);
984263bc
MD
1005}
1006
dd3af26c
CP
1007/*
1008 * hpfs_lookup(struct vnode *a_dvp, struct vnode **a_vpp,
1009 * struct componentname *a_cnp)
1010 */
984263bc 1011int
e62afb5f 1012hpfs_lookup(struct vop_old_lookup_args *ap)
984263bc 1013{
f7aae92f
RG
1014 struct vnode *dvp = ap->a_dvp;
1015 struct hpfsnode *dhp = VTOHP(dvp);
984263bc
MD
1016 struct hpfsmount *hpmp = dhp->h_hpmp;
1017 struct componentname *cnp = ap->a_cnp;
1018 struct ucred *cred = cnp->cn_cred;
1019 int error;
1020 int nameiop = cnp->cn_nameiop;
1021 int flags = cnp->cn_flags;
2b69e610 1022 int lockparent = flags & CNP_LOCKPARENT;
984263bc 1023#if HPFS_DEBUG
2b69e610 1024 int wantparent = flags & (CNP_LOCKPARENT | CNP_WANTPARENT);
984263bc
MD
1025#endif
1026 dprintf(("hpfs_lookup(0x%x, %s, %ld, %d, %d): \n",
1027 dhp->h_no, cnp->cn_nameptr, cnp->cn_namelen,
1028 lockparent, wantparent));
1029
2b69e610 1030 if (nameiop != NAMEI_CREATE && nameiop != NAMEI_DELETE && nameiop != NAMEI_LOOKUP) {
086c1d7e 1031 kprintf("hpfs_lookup: LOOKUP, DELETE and CREATE are only supported\n");
984263bc
MD
1032 return (EOPNOTSUPP);
1033 }
1034
87de5057 1035 error = VOP_ACCESS(dvp, VEXEC, cred);
984263bc
MD
1036 if(error)
1037 return (error);
1038
1039 if( (cnp->cn_namelen == 1) &&
1040 !strncmp(cnp->cn_nameptr,".",1) ) {
1041 dprintf(("hpfs_lookup(0x%x,...): . faked\n",dhp->h_no));
1042
597aea93 1043 vref(dvp);
984263bc
MD
1044 *ap->a_vpp = dvp;
1045
1046 return (0);
1047 } else if( (cnp->cn_namelen == 2) &&
2b69e610 1048 !strncmp(cnp->cn_nameptr,"..",2) && (flags & CNP_ISDOTDOT) ) {
984263bc
MD
1049 dprintf(("hpfs_lookup(0x%x,...): .. faked (0x%x)\n",
1050 dhp->h_no, dhp->h_fn.fn_parent));
1051
acde96db 1052 VOP__UNLOCK(dvp, 0);
984263bc
MD
1053
1054 error = VFS_VGET(hpmp->hpm_mp,
1055 dhp->h_fn.fn_parent, ap->a_vpp);
fad57d0e 1056 if (error) {
acde96db 1057 VOP__LOCK(dvp, 0);
984263bc
MD
1058 return(error);
1059 }
1060
acde96db 1061 if (lockparent && (error = VOP__LOCK(dvp, 0))) {
984263bc
MD
1062 vput( *(ap->a_vpp) );
1063 return (error);
1064 }
1065 return (error);
1066 } else {
1067 struct buf *bp;
1068 struct hpfsdirent *dep;
1069 struct hpfsnode *hp;
1070
1071 error = hpfs_genlookupbyname(dhp,
1072 cnp->cn_nameptr, cnp->cn_namelen, &bp, &dep);
1073 if (error) {
fad57d0e 1074 if (error == ENOENT &&
2b69e610 1075 (nameiop == NAMEI_CREATE || nameiop == NAMEI_RENAME)) {
984263bc 1076 if(!lockparent)
acde96db 1077 VOP__UNLOCK(dvp, 0);
984263bc
MD
1078 return (EJUSTRETURN);
1079 }
1080
1081 return (error);
1082 }
1083
1084 dprintf(("hpfs_lookup: fnode: 0x%x, CPID: 0x%x\n",
1085 dep->de_fnode, dep->de_cpid));
1086
fad57d0e 1087 if (nameiop == NAMEI_DELETE) {
87de5057 1088 error = VOP_ACCESS(dvp, VWRITE, cred);
984263bc
MD
1089 if (error) {
1090 brelse(bp);
1091 return (error);
1092 }
1093 }
1094
1095 if (dhp->h_no == dep->de_fnode) {
1096 brelse(bp);
597aea93 1097 vref(dvp);
984263bc
MD
1098 *ap->a_vpp = dvp;
1099 return (0);
1100 }
1101
1102 error = VFS_VGET(hpmp->hpm_mp, dep->de_fnode, ap->a_vpp);
1103 if (error) {
086c1d7e 1104 kprintf("hpfs_lookup: VFS_VGET FAILED %d\n", error);
984263bc
MD
1105 brelse(bp);
1106 return(error);
1107 }
1108
1109 hp = VTOHP(*ap->a_vpp);
1110
1111 hp->h_mtime = dep->de_mtime;
1112 hp->h_ctime = dep->de_ctime;
1113 hp->h_atime = dep->de_atime;
1114 bcopy(dep->de_name, hp->h_name, dep->de_namelen);
1115 hp->h_name[dep->de_namelen] = '\0';
1116 hp->h_namelen = dep->de_namelen;
1117 hp->h_flag |= H_PARVALID;
1118
1119 brelse(bp);
1120
fad57d0e 1121 if(!lockparent)
acde96db 1122 VOP__UNLOCK(dvp, 0);
984263bc
MD
1123 }
1124 return (error);
1125}
1126
dd3af26c
CP
1127/*
1128 * hpfs_remove(struct vnode *a_dvp, struct vnode *a_vp,
1129 * struct componentname *a_cnp)
1130 */
984263bc 1131int
e62afb5f 1132hpfs_remove(struct vop_old_remove_args *ap)
984263bc
MD
1133{
1134 int error;
1135
1136 dprintf(("hpfs_remove(0x%x, %s, %ld): \n", VTOHP(ap->a_vp)->h_no,
1137 ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen));
1138
1139 if (ap->a_vp->v_type == VDIR)
1140 return (EPERM);
1141
1142 error = hpfs_removefnode (ap->a_dvp, ap->a_vp, ap->a_cnp);
1143 return (error);
1144}
1145
dd3af26c
CP
1146/*
1147 * hpfs_create(struct vnode *a_dvp, struct vnode **a_vpp,
1148 * struct componentname *a_cnp, struct vattr *a_vap)
1149 */
984263bc 1150int
e62afb5f 1151hpfs_create(struct vop_old_create_args *ap)
984263bc
MD
1152{
1153 int error;
1154
1155 dprintf(("hpfs_create(0x%x, %s, %ld): \n", VTOHP(ap->a_dvp)->h_no,
1156 ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen));
1157
984263bc
MD
1158 error = hpfs_makefnode (ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap);
1159
1160 return (error);
1161}
1162
1163/*
1164 * Return POSIX pathconf information applicable to NTFS filesystem
dd3af26c
CP
1165 *
1166 * hpfs_pathconf(struct vnode *a_vp, int a_name, t *a_retval)
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1167 */
1168int
dd3af26c 1169hpfs_pathconf(struct vop_pathconf_args *ap)
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1170{
1171 switch (ap->a_name) {
1172 case _PC_LINK_MAX:
1173 *ap->a_retval = 1;
1174 return (0);
1175 case _PC_NAME_MAX:
1176 *ap->a_retval = HPFS_MAXFILENAME;
1177 return (0);
1178 case _PC_PATH_MAX:
1179 *ap->a_retval = PATH_MAX;
1180 return (0);
1181 case _PC_CHOWN_RESTRICTED:
1182 *ap->a_retval = 1;
1183 return (0);
1184 case _PC_NO_TRUNC:
1185 *ap->a_retval = 0;
1186 return (0);
1187#if defined(__NetBSD__)
1188 case _PC_SYNC_IO:
1189 *ap->a_retval = 1;
1190 return (0);
1191 case _PC_FILESIZEBITS:
1192 *ap->a_retval = 32;
1193 return (0);
1194#endif
1195 default:
1196 return (EINVAL);
1197 }
1198 /* NOTREACHED */
1199}
1200
1201
1202/*
1203 * Global vfs data structures
1204 */
a11aaa81 1205
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1206struct vop_ops hpfs_vnode_vops = {
1207 .vop_default = vop_defaultop,
1208 .vop_getattr = hpfs_getattr,
1209 .vop_setattr = hpfs_setattr,
1210 .vop_inactive = hpfs_inactive,
1211 .vop_reclaim = hpfs_reclaim,
1212 .vop_print = hpfs_print,
1213 .vop_old_create = hpfs_create,
1214 .vop_old_remove = hpfs_remove,
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1215 .vop_old_lookup = hpfs_lookup,
1216 .vop_access = hpfs_access,
1217 .vop_readdir = hpfs_readdir,
1218 .vop_fsync = hpfs_fsync,
1219 .vop_bmap = hpfs_bmap,
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1220 .vop_getpages = vop_stdgetpages,
1221 .vop_putpages = vop_stdputpages,
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1222 .vop_strategy = hpfs_strategy,
1223 .vop_read = hpfs_read,
1224 .vop_write = hpfs_write,
1225 .vop_ioctl = hpfs_ioctl,
1226 .vop_pathconf = hpfs_pathconf
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1227};
1228