xref: /dragonfly/sys/vfs/hpfs/hpfs_vnops.c (revision 984263bc)
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 $
27  */
28 
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/kernel.h>
32 #include <sys/proc.h>
33 #include <sys/time.h>
34 #include <sys/types.h>
35 #include <sys/stat.h>
36 #include <sys/vnode.h>
37 #include <sys/mount.h>
38 #include <sys/namei.h>
39 #include <sys/malloc.h>
40 #include <sys/buf.h>
41 #include <sys/dirent.h>
42 
43 #include <vm/vm.h>
44 #include <vm/vm_param.h>
45 #if !defined(__FreeBSD__)
46 #include <vm/vm_prot.h>
47 #endif
48 #include <vm/vm_page.h>
49 #include <vm/vm_object.h>
50 #include <vm/vm_pager.h>
51 #include <vm/vm_zone.h>
52 #if defined(__FreeBSD__)
53 #include <vm/vnode_pager.h>
54 #endif
55 #include <vm/vm_extern.h>
56 
57 #if !defined(__FreeBSD__)
58 #include <miscfs/specfs/specdev.h>
59 #include <miscfs/genfs/genfs.h>
60 #endif
61 
62 #include <sys/unistd.h> /* for pathconf(2) constants */
63 
64 #include <fs/hpfs/hpfs.h>
65 #include <fs/hpfs/hpfsmount.h>
66 #include <fs/hpfs/hpfs_subr.h>
67 #include <fs/hpfs/hpfs_ioctl.h>
68 
69 static int	hpfs_de_uiomove __P((struct hpfsmount *, struct hpfsdirent *,
70 				     struct uio *));
71 static int	hpfs_ioctl __P((struct vop_ioctl_args *ap));
72 static int	hpfs_read __P((struct vop_read_args *));
73 static int	hpfs_write __P((struct vop_write_args *ap));
74 static int	hpfs_getattr __P((struct vop_getattr_args *ap));
75 static int	hpfs_setattr __P((struct vop_setattr_args *ap));
76 static int	hpfs_inactive __P((struct vop_inactive_args *ap));
77 static int	hpfs_print __P((struct vop_print_args *ap));
78 static int	hpfs_reclaim __P((struct vop_reclaim_args *ap));
79 static int	hpfs_strategy __P((struct vop_strategy_args *ap));
80 static int	hpfs_access __P((struct vop_access_args *ap));
81 static int	hpfs_open __P((struct vop_open_args *ap));
82 static int	hpfs_close __P((struct vop_close_args *ap));
83 static int	hpfs_readdir __P((struct vop_readdir_args *ap));
84 static int	hpfs_lookup __P((struct vop_lookup_args *ap));
85 static int	hpfs_create __P((struct vop_create_args *));
86 static int	hpfs_remove __P((struct vop_remove_args *));
87 static int	hpfs_bmap __P((struct vop_bmap_args *ap));
88 #if defined(__FreeBSD__)
89 static int	hpfs_getpages __P((struct vop_getpages_args *ap));
90 static int	hpfs_putpages __P((struct vop_putpages_args *));
91 static int	hpfs_fsync __P((struct vop_fsync_args *ap));
92 #endif
93 static int	hpfs_pathconf __P((struct vop_pathconf_args *ap));
94 
95 #if defined(__FreeBSD__)
96 int
97 hpfs_getpages(ap)
98 	struct vop_getpages_args *ap;
99 {
100 	return vnode_pager_generic_getpages(ap->a_vp, ap->a_m, ap->a_count,
101 		ap->a_reqpage);
102 }
103 
104 int
105 hpfs_putpages(ap)
106 	struct vop_putpages_args *ap;
107 {
108 	return vnode_pager_generic_putpages(ap->a_vp, ap->a_m, ap->a_count,
109 		ap->a_sync, ap->a_rtvals);
110 }
111 
112 static int
113 hpfs_fsync(ap)
114 	struct vop_fsync_args /* {
115 		struct vnode *a_vp;
116 		struct ucred *a_cred;
117 		int a_waitfor;
118 		struct proc *a_p;
119 	} */ *ap;
120 {
121 	struct vnode *vp = ap->a_vp;
122 	int s;
123 	struct buf *bp, *nbp;
124 
125 	/*
126 	 * Flush all dirty buffers associated with a vnode.
127 	 */
128 loop:
129 	s = splbio();
130 	for (bp = TAILQ_FIRST(&vp->v_dirtyblkhd); bp; bp = nbp) {
131 		nbp = TAILQ_NEXT(bp, b_vnbufs);
132 		if (BUF_LOCK(bp, LK_EXCLUSIVE | LK_NOWAIT))
133 			continue;
134 		if ((bp->b_flags & B_DELWRI) == 0)
135 			panic("hpfs_fsync: not dirty");
136 		bremfree(bp);
137 		splx(s);
138 		(void) bwrite(bp);
139 		goto loop;
140 	}
141 	while (vp->v_numoutput) {
142 		vp->v_flag |= VBWAIT;
143 		(void) tsleep((caddr_t)&vp->v_numoutput, PRIBIO + 1, "hpfsn", 0);
144 	}
145 #ifdef DIAGNOSTIC
146 	if (!TAILQ_EMPTY(&vp->v_dirtyblkhd)) {
147 		vprint("hpfs_fsync: dirty", vp);
148 		goto loop;
149 	}
150 #endif
151 	splx(s);
152 
153 	/*
154 	 * Write out the on-disc version of the vnode.
155 	 */
156 	return hpfs_update(VTOHP(vp));
157 }
158 
159 #endif
160 
161 static int
162 hpfs_ioctl (
163 	struct vop_ioctl_args /* {
164 		struct vnode *a_vp;
165 		u_long a_command;
166 		caddr_t a_data;
167 		int a_fflag;
168 		struct ucred *a_cred;
169 		struct proc *a_p;
170 	} */ *ap)
171 {
172 	register struct vnode *vp = ap->a_vp;
173 	register struct hpfsnode *hp = VTOHP(vp);
174 	int error;
175 
176 	printf("hpfs_ioctl(0x%x, 0x%lx, 0x%p, 0x%x): ",
177 		hp->h_no, ap->a_command, ap->a_data, ap->a_fflag);
178 
179 	switch (ap->a_command) {
180 	case HPFSIOCGEANUM: {
181 		u_long eanum;
182 		u_long passed;
183 		struct ea *eap;
184 
185 		eanum = 0;
186 
187 		if (hp->h_fn.fn_ealen > 0) {
188 			eap = (struct ea *)&(hp->h_fn.fn_int);
189 			passed = 0;
190 
191 			while (passed < hp->h_fn.fn_ealen) {
192 
193 				printf("EAname: %s\n", EA_NAME(eap));
194 
195 				eanum++;
196 				passed += sizeof(struct ea) +
197 					  eap->ea_namelen + 1 + eap->ea_vallen;
198 				eap = (struct ea *)((caddr_t)hp->h_fn.fn_int +
199 						passed);
200 			}
201 			error = 0;
202 		} else {
203 			error = ENOENT;
204 		}
205 
206 		printf("%lu eas\n", eanum);
207 
208 		*(u_long *)ap->a_data = eanum;
209 
210 		break;
211 	}
212 	case HPFSIOCGEASZ: {
213 		u_long eanum;
214 		u_long passed;
215 		struct ea *eap;
216 
217 		printf("EA%ld\n", *(u_long *)ap->a_data);
218 
219 		eanum = 0;
220 		if (hp->h_fn.fn_ealen > 0) {
221 			eap = (struct ea *)&(hp->h_fn.fn_int);
222 			passed = 0;
223 
224 			error = ENOENT;
225 			while (passed < hp->h_fn.fn_ealen) {
226 				printf("EAname: %s\n", EA_NAME(eap));
227 
228 				if (eanum == *(u_long *)ap->a_data) {
229 					*(u_long *)ap->a_data =
230 					  	eap->ea_namelen + 1 +
231 						eap->ea_vallen;
232 
233 					error = 0;
234 					break;
235 				}
236 
237 				eanum++;
238 				passed += sizeof(struct ea) +
239 					  eap->ea_namelen + 1 + eap->ea_vallen;
240 				eap = (struct ea *)((caddr_t)hp->h_fn.fn_int +
241 						passed);
242 			}
243 		} else {
244 			error = ENOENT;
245 		}
246 
247 		break;
248 	}
249 	case HPFSIOCRDEA: {
250 		u_long eanum;
251 		u_long passed;
252 		struct hpfs_rdea *rdeap;
253 		struct ea *eap;
254 
255 		rdeap = (struct hpfs_rdea *)ap->a_data;
256 		printf("EA%ld\n", rdeap->ea_no);
257 
258 		eanum = 0;
259 		if (hp->h_fn.fn_ealen > 0) {
260 			eap = (struct ea *)&(hp->h_fn.fn_int);
261 			passed = 0;
262 
263 			error = ENOENT;
264 			while (passed < hp->h_fn.fn_ealen) {
265 				printf("EAname: %s\n", EA_NAME(eap));
266 
267 				if (eanum == rdeap->ea_no) {
268 					rdeap->ea_sz = eap->ea_namelen + 1 +
269 							eap->ea_vallen;
270 					copyout(EA_NAME(eap),rdeap->ea_data,
271 						rdeap->ea_sz);
272 					error = 0;
273 					break;
274 				}
275 
276 				eanum++;
277 				passed += sizeof(struct ea) +
278 					  eap->ea_namelen + 1 + eap->ea_vallen;
279 				eap = (struct ea *)((caddr_t)hp->h_fn.fn_int +
280 						passed);
281 			}
282 		} else {
283 			error = ENOENT;
284 		}
285 
286 		break;
287 	}
288 	default:
289 		error = EOPNOTSUPP;
290 		break;
291 	}
292 	return (error);
293 }
294 
295 /*
296  * Map file offset to disk offset.
297  */
298 int
299 hpfs_bmap(ap)
300 	struct vop_bmap_args /* {
301 		struct vnode *a_vp;
302 		daddr_t  a_bn;
303 		struct vnode **a_vpp;
304 		daddr_t *a_bnp;
305 		int *a_runp;
306 		int *a_runb;
307 	} */ *ap;
308 {
309 	register struct hpfsnode *hp = VTOHP(ap->a_vp);
310 	int error;
311 
312 	if (ap->a_vpp != NULL)
313 		*ap->a_vpp = hp->h_devvp;
314 #if defined(__FreeBSD__)
315 	if (ap->a_runb != NULL)
316 		*ap->a_runb = 0;
317 #endif
318 	if (ap->a_bnp == NULL)
319 		return (0);
320 
321 	dprintf(("hpfs_bmap(0x%x, 0x%x): ",hp->h_no, ap->a_bn));
322 
323 	error = hpfs_hpbmap (hp, ap->a_bn, ap->a_bnp, ap->a_runp);
324 
325 	return (error);
326 }
327 
328 static int
329 hpfs_read(ap)
330 	struct vop_read_args /* {
331 		struct vnode *a_vp;
332 		struct uio *a_uio;
333 		int a_ioflag;
334 		struct ucred *a_cred;
335 	} */ *ap;
336 {
337 	register struct vnode *vp = ap->a_vp;
338 	register struct hpfsnode *hp = VTOHP(vp);
339 	struct uio *uio = ap->a_uio;
340 	struct buf *bp;
341 	u_int xfersz, toread;
342 	u_int off;
343 	daddr_t lbn, bn;
344 	int resid;
345 	int runl;
346 	int error = 0;
347 
348 	resid = min (uio->uio_resid, hp->h_fn.fn_size - uio->uio_offset);
349 
350 	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));
351 
352 	while (resid) {
353 		lbn = uio->uio_offset >> DEV_BSHIFT;
354 		off = uio->uio_offset & (DEV_BSIZE - 1);
355 		dprintf(("hpfs_read: resid: 0x%x lbn: 0x%x off: 0x%x\n",
356 			uio->uio_resid, lbn, off));
357 		error = hpfs_hpbmap(hp, lbn, &bn, &runl);
358 		if (error)
359 			return (error);
360 
361 		toread = min(off + resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE));
362 		xfersz = (toread + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
363 		dprintf(("hpfs_read: bn: 0x%x (0x%x) toread: 0x%x (0x%x)\n",
364 			bn, runl, toread, xfersz));
365 
366 		if (toread == 0)
367 			break;
368 
369 		error = bread(hp->h_devvp, bn, xfersz, NOCRED, &bp);
370 		if (error) {
371 			brelse(bp);
372 			break;
373 		}
374 
375 		error = uiomove(bp->b_data + off, toread - off, uio);
376 		if(error) {
377 			brelse(bp);
378 			break;
379 		}
380 		brelse(bp);
381 		resid -= toread;
382 	}
383 	dprintf(("hpfs_read: successful\n"));
384 	return (error);
385 }
386 
387 static int
388 hpfs_write(ap)
389 	struct vop_write_args /* {
390 		struct vnode *a_vp;
391 		struct uio *a_uio;
392 		int  a_ioflag;
393 		struct ucred *a_cred;
394 	} */ *ap;
395 {
396 	register struct vnode *vp = ap->a_vp;
397 	register struct hpfsnode *hp = VTOHP(vp);
398 	struct uio *uio = ap->a_uio;
399 	struct buf *bp;
400 	u_int xfersz, towrite;
401 	u_int off;
402 	daddr_t lbn, bn;
403 	int runl;
404 	int error = 0;
405 
406 	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));
407 
408 	if (ap->a_ioflag & IO_APPEND) {
409 		dprintf(("hpfs_write: APPEND mode\n"));
410 		uio->uio_offset = hp->h_fn.fn_size;
411 	}
412 	if (uio->uio_offset + uio->uio_resid > hp->h_fn.fn_size) {
413 		error = hpfs_extend (hp, uio->uio_offset + uio->uio_resid);
414 		if (error) {
415 			printf("hpfs_write: hpfs_extend FAILED %d\n", error);
416 			return (error);
417 		}
418 	}
419 
420 	while (uio->uio_resid) {
421 		lbn = uio->uio_offset >> DEV_BSHIFT;
422 		off = uio->uio_offset & (DEV_BSIZE - 1);
423 		dprintf(("hpfs_write: resid: 0x%x lbn: 0x%x off: 0x%x\n",
424 			uio->uio_resid, lbn, off));
425 		error = hpfs_hpbmap(hp, lbn, &bn, &runl);
426 		if (error)
427 			return (error);
428 
429 		towrite = min(off + uio->uio_resid, min(DFLTPHYS, (runl+1)*DEV_BSIZE));
430 		xfersz = (towrite + DEV_BSIZE - 1) & ~(DEV_BSIZE - 1);
431 		dprintf(("hpfs_write: bn: 0x%x (0x%x) towrite: 0x%x (0x%x)\n",
432 			bn, runl, towrite, xfersz));
433 
434 		if ((off == 0) && (towrite == xfersz)) {
435 			bp = getblk(hp->h_devvp, bn, xfersz, 0, 0);
436 			clrbuf(bp);
437 		} else {
438 			error = bread(hp->h_devvp, bn, xfersz, NOCRED, &bp);
439 			if (error) {
440 				brelse(bp);
441 				return (error);
442 			}
443 		}
444 
445 		error = uiomove(bp->b_data + off, towrite - off, uio);
446 		if(error) {
447 			brelse(bp);
448 			return (error);
449 		}
450 
451 		if (ap->a_ioflag & IO_SYNC)
452 			bwrite(bp);
453 		else
454 			bawrite(bp);
455 	}
456 
457 	dprintf(("hpfs_write: successful\n"));
458 	return (0);
459 }
460 
461 /*
462  * XXXXX do we need hpfsnode locking inside?
463  */
464 static int
465 hpfs_getattr(ap)
466 	struct vop_getattr_args /* {
467 		struct vnode *a_vp;
468 		struct vattr *a_vap;
469 		struct ucred *a_cred;
470 		struct proc *a_p;
471 	} */ *ap;
472 {
473 	register struct vnode *vp = ap->a_vp;
474 	register struct hpfsnode *hp = VTOHP(vp);
475 	register struct vattr *vap = ap->a_vap;
476 	int error;
477 
478 	dprintf(("hpfs_getattr(0x%x):\n", hp->h_no));
479 
480 #if defined(__FreeBSD__)
481 	vap->va_fsid = dev2udev(hp->h_dev);
482 #else /* defined(__NetBSD__) */
483 	vap->va_fsid = ip->i_dev;
484 #endif
485 	vap->va_fileid = hp->h_no;
486 	vap->va_mode = hp->h_mode;
487 	vap->va_nlink = 1;
488 	vap->va_uid = hp->h_uid;
489 	vap->va_gid = hp->h_gid;
490 	vap->va_rdev = 0;				/* XXX UNODEV ? */
491 	vap->va_size = hp->h_fn.fn_size;
492 	vap->va_bytes = ((hp->h_fn.fn_size + DEV_BSIZE-1) & ~(DEV_BSIZE-1)) +
493 			DEV_BSIZE;
494 
495 	if (!(hp->h_flag & H_PARVALID)) {
496 		error = hpfs_validateparent(hp);
497 		if (error)
498 			return (error);
499 	}
500 	vap->va_atime = hpfstimetounix(hp->h_atime);
501 	vap->va_mtime = hpfstimetounix(hp->h_mtime);
502 	vap->va_ctime = hpfstimetounix(hp->h_ctime);
503 
504 	vap->va_flags = 0;
505 	vap->va_gen = 0;
506 	vap->va_blocksize = DEV_BSIZE;
507 	vap->va_type = vp->v_type;
508 	vap->va_filerev = 0;
509 
510 	return (0);
511 }
512 
513 /*
514  * XXXXX do we need hpfsnode locking inside?
515  */
516 static int
517 hpfs_setattr(ap)
518 	struct vop_setattr_args /* {
519 		struct vnode *a_vp;
520 		struct vattr *a_vap;
521 		struct ucred *a_cred;
522 		struct proc *a_p;
523 	} */ *ap;
524 {
525 	struct vnode *vp = ap->a_vp;
526 	struct hpfsnode *hp = VTOHP(vp);
527 	struct vattr *vap = ap->a_vap;
528 	struct ucred *cred = ap->a_cred;
529 	struct proc *p = ap->a_p;
530 	int error;
531 
532 	dprintf(("hpfs_setattr(0x%x):\n", hp->h_no));
533 
534 	/*
535 	 * Check for unsettable attributes.
536 	 */
537 	if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
538 	    (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
539 	    (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
540 	    (vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
541 		dprintf(("hpfs_setattr: changing nonsettable attr\n"));
542 		return (EINVAL);
543 	}
544 
545 	/* Can't change flags XXX Could be implemented */
546 	if (vap->va_flags != VNOVAL) {
547 		printf("hpfs_setattr: FLAGS CANNOT BE SET\n");
548 		return (EINVAL);
549 	}
550 
551 	/* Can't change uid/gid XXX Could be implemented */
552 	if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
553 		printf("hpfs_setattr: UID/GID CANNOT BE SET\n");
554 		return (EINVAL);
555 	}
556 
557 	/* Can't change mode XXX Could be implemented */
558 	if (vap->va_mode != (mode_t)VNOVAL) {
559 		printf("hpfs_setattr: MODE CANNOT BE SET\n");
560 		return (EINVAL);
561 	}
562 
563 	/* Update times */
564 	if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
565 		if (vp->v_mount->mnt_flag & MNT_RDONLY)
566 			return (EROFS);
567 		if (cred->cr_uid != hp->h_uid &&
568 		    (error = suser_xxx(cred, p, PRISON_ROOT)) &&
569 		    ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
570 		    (error = VOP_ACCESS(vp, VWRITE, cred, p))))
571 			return (error);
572 		if (vap->va_atime.tv_sec != VNOVAL)
573 			hp->h_atime = vap->va_atime.tv_sec;
574 		if (vap->va_mtime.tv_sec != VNOVAL)
575 			hp->h_mtime = vap->va_mtime.tv_sec;
576 
577 		hp->h_flag |= H_PARCHANGE;
578 	}
579 
580 	if (vap->va_size != VNOVAL) {
581 		switch (vp->v_type) {
582 		case VDIR:
583 			return (EISDIR);
584 		case VREG:
585 			if (vp->v_mount->mnt_flag & MNT_RDONLY)
586 				return (EROFS);
587 			break;
588 		default:
589 			printf("hpfs_setattr: WRONG v_type\n");
590 			return (EINVAL);
591 		}
592 
593 		if (vap->va_size < hp->h_fn.fn_size) {
594 #if defined(__FreeBSD__)
595 			error = vtruncbuf(vp, cred, p, vap->va_size, DEV_BSIZE);
596 			if (error)
597 				return (error);
598 #else /* defined(__NetBSD__) */
599 #error Need alternation for vtruncbuf()
600 #endif
601 			error = hpfs_truncate(hp, vap->va_size);
602 			if (error)
603 				return (error);
604 
605 		} else if (vap->va_size > hp->h_fn.fn_size) {
606 #if defined(__FreeBSD__)
607 			vnode_pager_setsize(vp, vap->va_size);
608 #endif
609 			error = hpfs_extend(hp, vap->va_size);
610 			if (error)
611 				return (error);
612 		}
613 	}
614 
615 	return (0);
616 }
617 
618 /*
619  * Last reference to an node.  If necessary, write or delete it.
620  */
621 int
622 hpfs_inactive(ap)
623 	struct vop_inactive_args /* {
624 		struct vnode *a_vp;
625 	} */ *ap;
626 {
627 	register struct vnode *vp = ap->a_vp;
628 	register struct hpfsnode *hp = VTOHP(vp);
629 	int error;
630 
631 	dprintf(("hpfs_inactive(0x%x): \n", hp->h_no));
632 
633 	if (hp->h_flag & H_CHANGE) {
634 		dprintf(("hpfs_inactive: node changed, update\n"));
635 		error = hpfs_update (hp);
636 		if (error)
637 			return (error);
638 	}
639 
640 	if (hp->h_flag & H_PARCHANGE) {
641 		dprintf(("hpfs_inactive: parent node changed, update\n"));
642 		error = hpfs_updateparent (hp);
643 		if (error)
644 			return (error);
645 	}
646 
647 	if (prtactive && vp->v_usecount != 0)
648 		vprint("hpfs_inactive: pushing active", vp);
649 
650 	if (hp->h_flag & H_INVAL) {
651 		VOP__UNLOCK(vp,0,ap->a_p);
652 #if defined(__FreeBSD__)
653 		vrecycle(vp, (struct simplelock *)0, ap->a_p);
654 #else /* defined(__NetBSD__) */
655 		vgone(vp);
656 #endif
657 		return (0);
658 	}
659 
660 	VOP__UNLOCK(vp,0,ap->a_p);
661 	return (0);
662 }
663 
664 /*
665  * Reclaim an inode so that it can be used for other purposes.
666  */
667 int
668 hpfs_reclaim(ap)
669 	struct vop_reclaim_args /* {
670 		struct vnode *a_vp;
671 	} */ *ap;
672 {
673 	register struct vnode *vp = ap->a_vp;
674 	register struct hpfsnode *hp = VTOHP(vp);
675 
676 	dprintf(("hpfs_reclaim(0x%x0): \n", hp->h_no));
677 
678 	hpfs_hphashrem(hp);
679 
680 	/* Purge old data structures associated with the inode. */
681 	cache_purge(vp);
682 	if (hp->h_devvp) {
683 		vrele(hp->h_devvp);
684 		hp->h_devvp = NULL;
685 	}
686 
687 	vp->v_data = NULL;
688 
689 	FREE(hp, M_HPFSNO);
690 
691 	return (0);
692 }
693 
694 static int
695 hpfs_print(ap)
696 	struct vop_print_args /* {
697 		struct vnode *a_vp;
698 	} */ *ap;
699 {
700 	register struct vnode *vp = ap->a_vp;
701 	register struct hpfsnode *hp = VTOHP(vp);
702 
703 	printf("tag VT_HPFS, ino 0x%x",hp->h_no);
704 	lockmgr_printinfo(&hp->h_lock);
705 	printf("\n");
706 	return (0);
707 }
708 
709 /*
710  * Calculate the logical to physical mapping if not done already,
711  * then call the device strategy routine.
712  *
713  * In order to be able to swap to a file, the VOP_BMAP operation may not
714  * deadlock on memory.  See hpfs_bmap() for details. XXXXXXX (not impl)
715  */
716 int
717 hpfs_strategy(ap)
718 	struct vop_strategy_args /* {
719 		struct buf *a_bp;
720 	} */ *ap;
721 {
722 	register struct buf *bp = ap->a_bp;
723 	register struct vnode *vp = ap->a_vp;
724 	struct vnode *nvp;
725 	int error;
726 
727 	dprintf(("hpfs_strategy(): \n"));
728 
729 	if (vp->v_type == VBLK || vp->v_type == VCHR)
730 		panic("hpfs_strategy: spec");
731 	if (bp->b_blkno == bp->b_lblkno) {
732 		error = VOP_BMAP(vp, bp->b_lblkno, &nvp, &bp->b_blkno, NULL, NULL);
733 		if (error) {
734 			printf("hpfs_strategy: VOP_BMAP FAILED %d\n", error);
735 			bp->b_error = error;
736 			bp->b_flags |= B_ERROR;
737 			biodone(bp);
738 			return (error);
739 		}
740 		if ((long)bp->b_blkno == -1)
741 			vfs_bio_clrbuf(bp);
742 	}
743 	if ((long)bp->b_blkno == -1) {
744 		biodone(bp);
745 		return (0);
746 	}
747 	bp->b_dev = nvp->v_rdev;
748 	VOP_STRATEGY(nvp, bp);
749 	return (0);
750 }
751 
752 /*
753  * XXXXX do we need hpfsnode locking inside?
754  */
755 int
756 hpfs_access(ap)
757 	struct vop_access_args /* {
758 		struct vnode *a_vp;
759 		int  a_mode;
760 		struct ucred *a_cred;
761 		struct proc *a_p;
762 	} */ *ap;
763 {
764 	struct vnode *vp = ap->a_vp;
765 	struct hpfsnode *hp = VTOHP(vp);
766 	struct ucred *cred = ap->a_cred;
767 	mode_t mask, mode = ap->a_mode;
768 	register gid_t *gp;
769 	int i;
770 
771 	dprintf(("hpfs_access(0x%x):\n", hp->h_no));
772 
773 	/*
774 	 * Disallow write attempts on read-only file systems;
775 	 * unless the file is a socket, fifo, or a block or
776 	 * character device resident on the file system.
777 	 */
778 	if (mode & VWRITE) {
779 		switch ((int)vp->v_type) {
780 		case VDIR:
781 		case VLNK:
782 		case VREG:
783 			if (vp->v_mount->mnt_flag & MNT_RDONLY)
784 				return (EROFS);
785 			break;
786 		}
787 	}
788 
789 	/* Otherwise, user id 0 always gets access. */
790 	if (cred->cr_uid == 0)
791 		return (0);
792 
793 	mask = 0;
794 
795 	/* Otherwise, check the owner. */
796 	if (cred->cr_uid == hp->h_uid) {
797 		if (mode & VEXEC)
798 			mask |= S_IXUSR;
799 		if (mode & VREAD)
800 			mask |= S_IRUSR;
801 		if (mode & VWRITE)
802 			mask |= S_IWUSR;
803 		return ((hp->h_mode & mask) == mask ? 0 : EACCES);
804 	}
805 
806 	/* Otherwise, check the groups. */
807 	for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++)
808 		if (hp->h_gid == *gp) {
809 			if (mode & VEXEC)
810 				mask |= S_IXGRP;
811 			if (mode & VREAD)
812 				mask |= S_IRGRP;
813 			if (mode & VWRITE)
814 				mask |= S_IWGRP;
815 			return ((hp->h_mode & mask) == mask ? 0 : EACCES);
816 		}
817 
818 	/* Otherwise, check everyone else. */
819 	if (mode & VEXEC)
820 		mask |= S_IXOTH;
821 	if (mode & VREAD)
822 		mask |= S_IROTH;
823 	if (mode & VWRITE)
824 		mask |= S_IWOTH;
825 	return ((hp->h_mode & mask) == mask ? 0 : EACCES);
826 }
827 
828 /*
829  * Open called.
830  *
831  * Nothing to do.
832  */
833 /* ARGSUSED */
834 static int
835 hpfs_open(ap)
836 	struct vop_open_args /* {
837 		struct vnode *a_vp;
838 		int  a_mode;
839 		struct ucred *a_cred;
840 		struct proc *a_p;
841 	} */ *ap;
842 {
843 #if HPFS_DEBUG
844 	register struct vnode *vp = ap->a_vp;
845 	register struct hpfsnode *hp = VTOHP(vp);
846 
847 	printf("hpfs_open(0x%x):\n",hp->h_no);
848 #endif
849 
850 	/*
851 	 * Files marked append-only must be opened for appending.
852 	 */
853 
854 	return (0);
855 }
856 
857 /*
858  * Close called.
859  *
860  * Update the times on the inode.
861  */
862 /* ARGSUSED */
863 static int
864 hpfs_close(ap)
865 	struct vop_close_args /* {
866 		struct vnode *a_vp;
867 		int  a_fflag;
868 		struct ucred *a_cred;
869 		struct proc *a_p;
870 	} */ *ap;
871 {
872 #if HPFS_DEBUG
873 	register struct vnode *vp = ap->a_vp;
874 	register struct hpfsnode *hp = VTOHP(vp);
875 
876 	printf("hpfs_close: %d\n",hp->h_no);
877 #endif
878 
879 	return (0);
880 }
881 
882 static int
883 hpfs_de_uiomove (
884 	struct hpfsmount *hpmp,
885 	struct hpfsdirent *dep,
886 	struct uio *uio)
887 {
888 	struct dirent cde;
889 	int i, error;
890 
891 	dprintf(("[no: 0x%x, size: %d, name: %2d:%.*s, flag: 0x%x] ",
892 		dep->de_fnode, dep->de_size, dep->de_namelen,
893 		dep->de_namelen, dep->de_name, dep->de_flag));
894 
895 	/*strncpy(cde.d_name, dep->de_name, dep->de_namelen);*/
896 	for (i=0; i<dep->de_namelen; i++)
897 		cde.d_name[i] = hpfs_d2u(hpmp, dep->de_name[i]);
898 
899 	cde.d_name[dep->de_namelen] = '\0';
900 	cde.d_namlen = dep->de_namelen;
901 	cde.d_fileno = dep->de_fnode;
902 	cde.d_type = (dep->de_flag & DE_DIR) ? DT_DIR : DT_REG;
903 	cde.d_reclen = sizeof(struct dirent);
904 
905 	error = uiomove((char *)&cde, sizeof(struct dirent), uio);
906 	if (error)
907 		return (error);
908 
909 	dprintf(("[0x%x] ", uio->uio_resid));
910 	return (error);
911 }
912 
913 
914 static struct dirent hpfs_de_dot =
915 	{ 0, sizeof(struct dirent), DT_DIR, 1, "." };
916 static struct dirent hpfs_de_dotdot =
917 	{ 0, sizeof(struct dirent), DT_DIR, 2, ".." };
918 int
919 hpfs_readdir(ap)
920 	struct vop_readdir_args /* {
921 		struct vnode *a_vp;
922 		struct uio *a_uio;
923 		struct ucred *a_cred;
924 		int *a_ncookies;
925 		u_int **cookies;
926 	} */ *ap;
927 {
928 	register struct vnode *vp = ap->a_vp;
929 	register struct hpfsnode *hp = VTOHP(vp);
930 	struct hpfsmount *hpmp = hp->h_hpmp;
931 	struct uio *uio = ap->a_uio;
932 	int ncookies = 0, i, num, cnum;
933 	int error = 0;
934 	off_t off;
935 	struct buf *bp;
936 	struct dirblk *dp;
937 	struct hpfsdirent *dep;
938 	lsn_t olsn;
939 	lsn_t lsn;
940 	int level;
941 
942 	dprintf(("hpfs_readdir(0x%x, 0x%x, 0x%x): ",hp->h_no,(u_int32_t)uio->uio_offset,uio->uio_resid));
943 
944 	off = uio->uio_offset;
945 
946 	if( uio->uio_offset < sizeof(struct dirent) ) {
947 		dprintf((". faked, "));
948 		hpfs_de_dot.d_fileno = hp->h_no;
949 		error = uiomove((char *)&hpfs_de_dot,sizeof(struct dirent),uio);
950 		if(error) {
951 			return (error);
952 		}
953 
954 		ncookies ++;
955 	}
956 
957 	if( uio->uio_offset < 2 * sizeof(struct dirent) ) {
958 		dprintf((".. faked, "));
959 		hpfs_de_dotdot.d_fileno = hp->h_fn.fn_parent;
960 
961 		error = uiomove((char *)&hpfs_de_dotdot, sizeof(struct dirent),
962 				uio);
963 		if(error) {
964 			return (error);
965 		}
966 
967 		ncookies ++;
968 	}
969 
970 	num = uio->uio_offset / sizeof(struct dirent) - 2;
971 	cnum = 0;
972 
973 	lsn = ((alleaf_t *)hp->h_fn.fn_abd)->al_lsn;
974 
975 	olsn = 0;
976 	level = 1;
977 
978 dive:
979 	dprintf(("[dive 0x%x] ", lsn));
980 	error = bread(hp->h_devvp, lsn, D_BSIZE, NOCRED, &bp);
981 	if (error) {
982 		brelse(bp);
983 		return (error);
984 	}
985 
986 	dp = (struct dirblk *) bp->b_data;
987 	if (dp->d_magic != D_MAGIC) {
988 		printf("hpfs_readdir: MAGIC DOESN'T MATCH\n");
989 		brelse(bp);
990 		return (EINVAL);
991 	}
992 
993 	dep = D_DIRENT(dp);
994 
995 	if (olsn) {
996 		dprintf(("[restore 0x%x] ", olsn));
997 
998 		while(!(dep->de_flag & DE_END) ) {
999 			if((dep->de_flag & DE_DOWN) &&
1000 			   (olsn == DE_DOWNLSN(dep)))
1001 					 break;
1002 			dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen);
1003 		}
1004 
1005 		if((dep->de_flag & DE_DOWN) && (olsn == DE_DOWNLSN(dep))) {
1006 			if (dep->de_flag & DE_END)
1007 				goto blockdone;
1008 
1009 			if (!(dep->de_flag & DE_SPECIAL)) {
1010 				if (num <= cnum) {
1011 					if (uio->uio_resid < sizeof(struct dirent)) {
1012 						brelse(bp);
1013 						dprintf(("[resid] "));
1014 						goto readdone;
1015 					}
1016 
1017 					error = hpfs_de_uiomove(hpmp, dep, uio);
1018 					if (error) {
1019 						brelse (bp);
1020 						return (error);
1021 					}
1022 					ncookies++;
1023 
1024 					if (uio->uio_resid < sizeof(struct dirent)) {
1025 						brelse(bp);
1026 						dprintf(("[resid] "));
1027 						goto readdone;
1028 					}
1029 				}
1030 				cnum++;
1031 			}
1032 
1033 			dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen);
1034 		} else {
1035 			printf("hpfs_readdir: ERROR! oLSN not found\n");
1036 			brelse(bp);
1037 			return (EINVAL);
1038 		}
1039 	}
1040 
1041 	olsn = 0;
1042 
1043 	while(!(dep->de_flag & DE_END)) {
1044 		if(dep->de_flag & DE_DOWN) {
1045 			lsn = DE_DOWNLSN(dep);
1046 			brelse(bp);
1047 			level++;
1048 			goto dive;
1049 		}
1050 
1051 		if (!(dep->de_flag & DE_SPECIAL)) {
1052 			if (num <= cnum) {
1053 				if (uio->uio_resid < sizeof(struct dirent)) {
1054 					brelse(bp);
1055 					dprintf(("[resid] "));
1056 					goto readdone;
1057 				}
1058 
1059 				error = hpfs_de_uiomove(hpmp, dep, uio);
1060 				if (error) {
1061 					brelse (bp);
1062 					return (error);
1063 				}
1064 				ncookies++;
1065 
1066 				if (uio->uio_resid < sizeof(struct dirent)) {
1067 					brelse(bp);
1068 					dprintf(("[resid] "));
1069 					goto readdone;
1070 				}
1071 			}
1072 			cnum++;
1073 		}
1074 
1075 		dep = (hpfsdirent_t *)((caddr_t)dep + dep->de_reclen);
1076 	}
1077 
1078 	if(dep->de_flag & DE_DOWN) {
1079 		dprintf(("[enddive] "));
1080 		lsn = DE_DOWNLSN(dep);
1081 		brelse(bp);
1082 		level++;
1083 		goto dive;
1084 	}
1085 
1086 blockdone:
1087 	dprintf(("[EOB] "));
1088 	olsn = lsn;
1089 	lsn = dp->d_parent;
1090 	brelse(bp);
1091 	level--;
1092 
1093 	dprintf(("[level %d] ", level));
1094 
1095 	if (level > 0)
1096 		goto dive;	/* undive really */
1097 
1098 	if (ap->a_eofflag) {
1099 	    dprintf(("[EOF] "));
1100 	    *ap->a_eofflag = 1;
1101 	}
1102 
1103 readdone:
1104 	dprintf(("[readdone]\n"));
1105 	if (!error && ap->a_ncookies != NULL) {
1106 		struct dirent* dpStart;
1107 		struct dirent* dp;
1108 #if defined(__FreeBSD__)
1109 		u_long *cookies;
1110 		u_long *cookiep;
1111 #else /* defined(__NetBSD__) */
1112 		off_t *cookies;
1113 		off_t *cookiep;
1114 #endif
1115 
1116 		dprintf(("%d cookies, ",ncookies));
1117 		if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
1118 			panic("hpfs_readdir: unexpected uio from NFS server");
1119 		dpStart = (struct dirent *)
1120 		     ((caddr_t)uio->uio_iov->iov_base -
1121 			 (uio->uio_offset - off));
1122 #if defined(__FreeBSD__)
1123 		MALLOC(cookies, u_long *, ncookies * sizeof(u_long),
1124 		       M_TEMP, M_WAITOK);
1125 #else /* defined(__NetBSD__) */
1126 		MALLOC(cookies, off_t *, ncookies * sizeof(off_t),
1127 		       M_TEMP, M_WAITOK);
1128 #endif
1129 		for (dp = dpStart, cookiep = cookies, i=0;
1130 		     i < ncookies;
1131 		     dp = (struct dirent *)((caddr_t) dp + dp->d_reclen), i++) {
1132 			off += dp->d_reclen;
1133 			*cookiep++ = (u_int) off;
1134 		}
1135 		*ap->a_ncookies = ncookies;
1136 		*ap->a_cookies = cookies;
1137 	}
1138 
1139 	return (0);
1140 }
1141 
1142 int
1143 hpfs_lookup(ap)
1144 	struct vop_lookup_args /* {
1145 		struct vnode *a_dvp;
1146 		struct vnode **a_vpp;
1147 		struct componentname *a_cnp;
1148 	} */ *ap;
1149 {
1150 	register struct vnode *dvp = ap->a_dvp;
1151 	register struct hpfsnode *dhp = VTOHP(dvp);
1152 	struct hpfsmount *hpmp = dhp->h_hpmp;
1153 	struct componentname *cnp = ap->a_cnp;
1154 	struct ucred *cred = cnp->cn_cred;
1155 	int error;
1156 	int nameiop = cnp->cn_nameiop;
1157 	int flags = cnp->cn_flags;
1158 	int lockparent = flags & LOCKPARENT;
1159 #if HPFS_DEBUG
1160 	int wantparent = flags & (LOCKPARENT|WANTPARENT);
1161 #endif
1162 	dprintf(("hpfs_lookup(0x%x, %s, %ld, %d, %d): \n",
1163 		dhp->h_no, cnp->cn_nameptr, cnp->cn_namelen,
1164 		lockparent, wantparent));
1165 
1166 	if (nameiop != CREATE && nameiop != DELETE && nameiop != LOOKUP) {
1167 		printf("hpfs_lookup: LOOKUP, DELETE and CREATE are only supported\n");
1168 		return (EOPNOTSUPP);
1169 	}
1170 
1171 	error = VOP_ACCESS(dvp, VEXEC, cred, cnp->cn_proc);
1172 	if(error)
1173 		return (error);
1174 
1175 	if( (cnp->cn_namelen == 1) &&
1176 	    !strncmp(cnp->cn_nameptr,".",1) ) {
1177 		dprintf(("hpfs_lookup(0x%x,...): . faked\n",dhp->h_no));
1178 
1179 		VREF(dvp);
1180 		*ap->a_vpp = dvp;
1181 
1182 		return (0);
1183 	} else if( (cnp->cn_namelen == 2) &&
1184 	    !strncmp(cnp->cn_nameptr,"..",2) && (flags & ISDOTDOT) ) {
1185 		dprintf(("hpfs_lookup(0x%x,...): .. faked (0x%x)\n",
1186 			dhp->h_no, dhp->h_fn.fn_parent));
1187 
1188 		VOP__UNLOCK(dvp,0,cnp->cn_proc);
1189 
1190 		error = VFS_VGET(hpmp->hpm_mp,
1191 				 dhp->h_fn.fn_parent, ap->a_vpp);
1192 		if(error) {
1193 			VOP__LOCK(dvp, 0, cnp->cn_proc);
1194 			return(error);
1195 		}
1196 
1197 		if( lockparent && (flags & ISLASTCN) &&
1198 		    (error = VOP__LOCK(dvp, 0, cnp->cn_proc)) ) {
1199 			vput( *(ap->a_vpp) );
1200 			return (error);
1201 		}
1202 		return (error);
1203 	} else {
1204 		struct buf *bp;
1205 		struct hpfsdirent *dep;
1206 		struct hpfsnode *hp;
1207 
1208 		error = hpfs_genlookupbyname(dhp,
1209 				cnp->cn_nameptr, cnp->cn_namelen, &bp, &dep);
1210 		if (error) {
1211 			if ((error == ENOENT) && (flags & ISLASTCN) &&
1212 			    (nameiop == CREATE || nameiop == RENAME)) {
1213 				if(!lockparent)
1214 					VOP__UNLOCK(dvp, 0, cnp->cn_proc);
1215 				cnp->cn_flags |= SAVENAME;
1216 				return (EJUSTRETURN);
1217 			}
1218 
1219 			return (error);
1220 		}
1221 
1222 		dprintf(("hpfs_lookup: fnode: 0x%x, CPID: 0x%x\n",
1223 			 dep->de_fnode, dep->de_cpid));
1224 
1225 		if (nameiop == DELETE && (flags & ISLASTCN)) {
1226 			error = VOP_ACCESS(dvp, VWRITE, cred, cnp->cn_proc);
1227 			if (error) {
1228 				brelse(bp);
1229 				return (error);
1230 			}
1231 		}
1232 
1233 		if (dhp->h_no == dep->de_fnode) {
1234 			brelse(bp);
1235 			VREF(dvp);
1236 			*ap->a_vpp = dvp;
1237 			return (0);
1238 		}
1239 
1240 		error = VFS_VGET(hpmp->hpm_mp, dep->de_fnode, ap->a_vpp);
1241 		if (error) {
1242 			printf("hpfs_lookup: VFS_VGET FAILED %d\n", error);
1243 			brelse(bp);
1244 			return(error);
1245 		}
1246 
1247 		hp = VTOHP(*ap->a_vpp);
1248 
1249 		hp->h_mtime = dep->de_mtime;
1250 		hp->h_ctime = dep->de_ctime;
1251 		hp->h_atime = dep->de_atime;
1252 		bcopy(dep->de_name, hp->h_name, dep->de_namelen);
1253 		hp->h_name[dep->de_namelen] = '\0';
1254 		hp->h_namelen = dep->de_namelen;
1255 		hp->h_flag |= H_PARVALID;
1256 
1257 		brelse(bp);
1258 
1259 		if(!lockparent || !(flags & ISLASTCN))
1260 			VOP__UNLOCK(dvp, 0, cnp->cn_proc);
1261 		if ((flags & MAKEENTRY) &&
1262 		    (!(flags & ISLASTCN) ||
1263 		     (nameiop != DELETE && nameiop != CREATE)))
1264 			cache_enter(dvp, *ap->a_vpp, cnp);
1265 	}
1266 	return (error);
1267 }
1268 
1269 int
1270 hpfs_remove(ap)
1271 	struct vop_remove_args /* {
1272 		struct vnode *a_dvp;
1273 		struct vnode *a_vp;
1274 		struct componentname *a_cnp;
1275 	} */ *ap;
1276 {
1277 	int error;
1278 
1279 	dprintf(("hpfs_remove(0x%x, %s, %ld): \n", VTOHP(ap->a_vp)->h_no,
1280 		ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen));
1281 
1282 	if (ap->a_vp->v_type == VDIR)
1283 		return (EPERM);
1284 
1285 	error = hpfs_removefnode (ap->a_dvp, ap->a_vp, ap->a_cnp);
1286 	return (error);
1287 }
1288 
1289 int
1290 hpfs_create(ap)
1291 	struct vop_create_args /* {
1292 		struct vnode *a_dvp;
1293 		struct vnode **a_vpp;
1294 		struct componentname *a_cnp;
1295 		struct vattr *a_vap;
1296 	} */ *ap;
1297 {
1298 	int error;
1299 
1300 	dprintf(("hpfs_create(0x%x, %s, %ld): \n", VTOHP(ap->a_dvp)->h_no,
1301 		ap->a_cnp->cn_nameptr, ap->a_cnp->cn_namelen));
1302 
1303 	if (!(ap->a_cnp->cn_flags & HASBUF))
1304 		panic ("hpfs_create: no name\n");
1305 
1306 	error = hpfs_makefnode (ap->a_dvp, ap->a_vpp, ap->a_cnp, ap->a_vap);
1307 
1308 	return (error);
1309 }
1310 
1311 /*
1312  * Return POSIX pathconf information applicable to NTFS filesystem
1313  */
1314 int
1315 hpfs_pathconf(ap)
1316 	struct vop_pathconf_args /* {
1317 		struct vnode *a_vp;
1318 		int a_name;
1319 		register_t *a_retval;
1320 	} */ *ap;
1321 {
1322 	switch (ap->a_name) {
1323 	case _PC_LINK_MAX:
1324 		*ap->a_retval = 1;
1325 		return (0);
1326 	case _PC_NAME_MAX:
1327 		*ap->a_retval = HPFS_MAXFILENAME;
1328 		return (0);
1329 	case _PC_PATH_MAX:
1330 		*ap->a_retval = PATH_MAX;
1331 		return (0);
1332 	case _PC_CHOWN_RESTRICTED:
1333 		*ap->a_retval = 1;
1334 		return (0);
1335 	case _PC_NO_TRUNC:
1336 		*ap->a_retval = 0;
1337 		return (0);
1338 #if defined(__NetBSD__)
1339 	case _PC_SYNC_IO:
1340 		*ap->a_retval = 1;
1341 		return (0);
1342 	case _PC_FILESIZEBITS:
1343 		*ap->a_retval = 32;
1344 		return (0);
1345 #endif
1346 	default:
1347 		return (EINVAL);
1348 	}
1349 	/* NOTREACHED */
1350 }
1351 
1352 
1353 /*
1354  * Global vfs data structures
1355  */
1356 vop_t **hpfs_vnodeop_p;
1357 #if defined(__FreeBSD__)
1358 struct vnodeopv_entry_desc hpfs_vnodeop_entries[] = {
1359 	{ &vop_default_desc, (vop_t *)vop_defaultop },
1360 
1361 	{ &vop_getattr_desc, (vop_t *)hpfs_getattr },
1362 	{ &vop_setattr_desc, (vop_t *)hpfs_setattr },
1363 	{ &vop_inactive_desc, (vop_t *)hpfs_inactive },
1364 	{ &vop_reclaim_desc, (vop_t *)hpfs_reclaim },
1365 	{ &vop_print_desc, (vop_t *)hpfs_print },
1366 	{ &vop_create_desc, (vop_t *)hpfs_create },
1367 	{ &vop_remove_desc, (vop_t *)hpfs_remove },
1368 	{ &vop_islocked_desc, (vop_t *)vop_stdislocked },
1369 	{ &vop_unlock_desc, (vop_t *)vop_stdunlock },
1370 	{ &vop_lock_desc, (vop_t *)vop_stdlock },
1371 	{ &vop_cachedlookup_desc, (vop_t *)hpfs_lookup },
1372 	{ &vop_lookup_desc, (vop_t *)vfs_cache_lookup },
1373 	{ &vop_access_desc, (vop_t *)hpfs_access },
1374 	{ &vop_close_desc, (vop_t *)hpfs_close },
1375 	{ &vop_open_desc, (vop_t *)hpfs_open },
1376 	{ &vop_readdir_desc, (vop_t *)hpfs_readdir },
1377 	{ &vop_fsync_desc, (vop_t *)hpfs_fsync },
1378 	{ &vop_bmap_desc, (vop_t *)hpfs_bmap },
1379 	{ &vop_getpages_desc, (vop_t *) hpfs_getpages },
1380 	{ &vop_putpages_desc, (vop_t *) hpfs_putpages },
1381 	{ &vop_strategy_desc, (vop_t *)hpfs_strategy },
1382 	{ &vop_bwrite_desc, (vop_t *)vop_stdbwrite },
1383 	{ &vop_read_desc, (vop_t *)hpfs_read },
1384 	{ &vop_write_desc, (vop_t *)hpfs_write },
1385 	{ &vop_ioctl_desc, (vop_t *)hpfs_ioctl },
1386 	{ &vop_pathconf_desc, (vop_t *)hpfs_pathconf },
1387 	{ NULL, NULL }
1388 };
1389 
1390 static
1391 struct vnodeopv_desc hpfs_vnodeop_opv_desc =
1392 	{ &hpfs_vnodeop_p, hpfs_vnodeop_entries };
1393 
1394 VNODEOP_SET(hpfs_vnodeop_opv_desc);
1395 #else /* defined(__NetBSD__) */
1396 struct vnodeopv_entry_desc ntfs_vnodeop_entries[] = {
1397 	{ &vop_default_desc, (vop_t *) genfs_badop },	/* XXX */
1398 	{ &vop_lookup_desc, (vop_t *) hpfs_lookup },	/* lookup */
1399 	{ &vop_create_desc, genfs_eopnotsupp },		/* create */
1400 	{ &vop_mknod_desc, genfs_eopnotsupp },		/* mknod */
1401 	{ &vop_open_desc, (vop_t *) hpfs_open },	/* open */
1402 	{ &vop_close_desc,(vop_t *) hpfs_close },	/* close */
1403 	{ &vop_access_desc, (vop_t *) hpfs_access },	/* access */
1404 	{ &vop_getattr_desc, (vop_t *) hpfs_getattr },	/* getattr */
1405 	{ &vop_setattr_desc, genfs_eopnotsupp },	/* setattr */
1406 	{ &vop_read_desc, (vop_t *) hpfs_read },	/* read */
1407 	{ &vop_write_desc, (vop_t *) hpfs_write },	/* write */
1408 	{ &vop_lease_desc, genfs_lease_check },		/* lease */
1409 	{ &vop_fcntl_desc, genfs_fcntl },		/* fcntl */
1410 	{ &vop_ioctl_desc, genfs_enoioctl },		/* ioctl */
1411 	{ &vop_poll_desc, genfs_poll },			/* poll */
1412 	{ &vop_revoke_desc, genfs_revoke },		/* revoke */
1413 	{ &vop_mmap_desc, genfs_eopnotsupp },		/* mmap */
1414 	{ &vop_fsync_desc, genfs_fsync },		/* fsync */
1415 	{ &vop_seek_desc, genfs_seek },			/* seek */
1416 	{ &vop_remove_desc, genfs_eopnotsupp },		/* remove */
1417 	{ &vop_link_desc, genfs_eopnotsupp },		/* link */
1418 	{ &vop_rename_desc, genfs_eopnotsupp },		/* rename */
1419 	{ &vop_mkdir_desc, genfs_eopnotsupp },		/* mkdir */
1420 	{ &vop_rmdir_desc, genfs_eopnotsupp },		/* rmdir */
1421 	{ &vop_symlink_desc, genfs_eopnotsupp },	/* symlink */
1422 	{ &vop_readdir_desc, (vop_t *) hpfs_readdir },	/* readdir */
1423 	{ &vop_readlink_desc, genfs_eopnotsupp },	/* readlink */
1424 	{ &vop_abortop_desc, genfs_abortop },		/* abortop */
1425 	{ &vop_inactive_desc, (vop_t *) hpfs_inactive },	/* inactive */
1426 	{ &vop_reclaim_desc, (vop_t *) hpfs_reclaim },	/* reclaim */
1427 	{ &vop_lock_desc, genfs_lock },			/* lock */
1428 	{ &vop_unlock_desc, genfs_unlock },		/* unlock */
1429 	{ &vop_bmap_desc, (vop_t *) hpfs_bmap },	/* bmap */
1430 	{ &vop_strategy_desc, (vop_t *) hpfs_strategy },	/* strategy */
1431 	{ &vop_print_desc, (vop_t *) hpfs_print },	/* print */
1432 	{ &vop_islocked_desc, genfs_islocked },		/* islocked */
1433 	{ &vop_pathconf_desc, hpfs_pathconf },		/* pathconf */
1434 	{ &vop_advlock_desc, genfs_nullop },		/* advlock */
1435 	{ &vop_blkatoff_desc, genfs_eopnotsupp },	/* blkatoff */
1436 	{ &vop_valloc_desc, genfs_eopnotsupp },		/* valloc */
1437 	{ &vop_reallocblks_desc, genfs_eopnotsupp },	/* reallocblks */
1438 	{ &vop_vfree_desc, genfs_eopnotsupp },		/* vfree */
1439 	{ &vop_truncate_desc, genfs_eopnotsupp },	/* truncate */
1440 	{ &vop_update_desc, genfs_eopnotsupp },		/* update */
1441 	{ &vop_bwrite_desc, vn_bwrite },		/* bwrite */
1442 	{ (struct vnodeop_desc *)NULL, (int (*) __P((void *)))NULL }
1443 };
1444 struct vnodeopv_desc ntfs_vnodeop_opv_desc =
1445 	{ &ntfs_vnodeop_p, ntfs_vnodeop_entries };
1446 
1447 #endif
1448