40 */
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/namei.h>
45#include <sys/resourcevar.h>
46#include <sys/kernel.h>
47#include <sys/file.h>
48#include <sys/stat.h>
49#include <sys/buf.h>
50#include <sys/proc.h>
51#include <sys/conf.h>
52#include <sys/mount.h>
53#include <sys/vnode.h>
54#include <miscfs/specfs/specdev.h>
55#include <miscfs/fifofs/fifo.h>
56#include <sys/malloc.h>
57#include <sys/dir.h>
58
59#include <isofs/cd9660/iso.h>
60#include <isofs/cd9660/cd9660_node.h>
61#include <isofs/cd9660/iso_rrip.h>
62
63#if 0
64/*
65 * Mknod vnode call
66 * Actually remap the device number
67 */
68cd9660_mknod(ndp, vap, cred, p)
69 struct nameidata *ndp;
70 struct ucred *cred;
71 struct vattr *vap;
72 struct proc *p;
73{
74#ifndef ISODEVMAP
75 free(ndp->ni_pnbuf, M_NAMEI);
76 vput(ndp->ni_dvp);
77 vput(ndp->ni_vp);
78 return EINVAL;
79#else
80 register struct vnode *vp;
81 struct iso_node *ip;
82 struct iso_dnode *dp;
83 int error;
84
85 vp = ndp->ni_vp;
86 ip = VTOI(vp);
87
88 if (ip->i_mnt->iso_ftype != ISO_FTYPE_RRIP
89 || vap->va_type != vp->v_type
90 || (vap->va_type != VCHR && vap->va_type != VBLK)) {
91 free(ndp->ni_pnbuf, M_NAMEI);
92 vput(ndp->ni_dvp);
93 vput(ndp->ni_vp);
94 return EINVAL;
95 }
96
97 dp = iso_dmap(ip->i_dev,ip->i_number,1);
98 if (ip->inode.iso_rdev == vap->va_rdev || vap->va_rdev == VNOVAL) {
99 /* same as the unmapped one, delete the mapping */
100 remque(dp);
101 FREE(dp,M_CACHE);
102 } else
103 /* enter new mapping */
104 dp->d_dev = vap->va_rdev;
105
106 /*
107 * Remove inode so that it will be reloaded by iget and
108 * checked to see if it is an alias of an existing entry
109 * in the inode cache.
110 */
111 vput(vp);
112 vp->v_type = VNON;
113 vgone(vp);
114 return (0);
115#endif
116}
117#endif
118
119/*
120 * Open called.
121 *
122 * Nothing to do.
123 */
124/* ARGSUSED */
125int
126cd9660_open(ap)
127 struct vop_open_args /* {
128 struct vnode *a_vp;
129 int a_mode;
130 struct ucred *a_cred;
131 struct proc *a_p;
132 } */ *ap;
133{
134 return (0);
135}
136
137/*
138 * Close called
139 *
140 * Update the times on the inode on writeable file systems.
141 */
142/* ARGSUSED */
143int
144cd9660_close(ap)
145 struct vop_close_args /* {
146 struct vnode *a_vp;
147 int a_fflag;
148 struct ucred *a_cred;
149 struct proc *a_p;
150 } */ *ap;
151{
152 return (0);
153}
154
155/*
156 * Check mode permission on inode pointer. Mode is READ, WRITE or EXEC.
157 * The mode is shifted to select the owner/group/other fields. The
158 * super user is granted all permissions.
159 */
160/* ARGSUSED */
161int
162cd9660_access(ap)
163 struct vop_access_args /* {
164 struct vnode *a_vp;
165 int a_mode;
166 struct ucred *a_cred;
167 struct proc *a_p;
168 } */ *ap;
169{
170 return (0);
171}
172
173int
174cd9660_getattr(ap)
175 struct vop_getattr_args /* {
176 struct vnode *a_vp;
177 struct vattr *a_vap;
178 struct ucred *a_cred;
179 struct proc *a_p;
180 } */ *ap;
181
182{
183 struct vnode *vp = ap->a_vp;
184 register struct vattr *vap = ap->a_vap;
185 register struct iso_node *ip = VTOI(vp);
186 int i;
187
188 vap->va_fsid = ip->i_dev;
189 vap->va_fileid = ip->i_number;
190
191 vap->va_mode = ip->inode.iso_mode;
192 vap->va_nlink = ip->inode.iso_links;
193 vap->va_uid = ip->inode.iso_uid;
194 vap->va_gid = ip->inode.iso_gid;
195 vap->va_atime = ip->inode.iso_atime;
196 vap->va_mtime = ip->inode.iso_mtime;
197 vap->va_ctime = ip->inode.iso_ctime;
198 vap->va_rdev = ip->inode.iso_rdev;
199
200 vap->va_size = (u_quad_t) ip->i_size;
201 vap->va_flags = 0;
202 vap->va_gen = 1;
203 vap->va_blocksize = ip->i_mnt->logical_block_size;
204 vap->va_bytes = (u_quad_t) ip->i_size;
205 vap->va_type = vp->v_type;
206 return (0);
207}
208
209#if ISO_DEFAULT_BLOCK_SIZE >= NBPG
210#ifdef DEBUG
211extern int doclusterread;
212#else
213#define doclusterread 1
214#endif
215#else
216/* XXX until cluster routines can handle block sizes less than one page */
217#define doclusterread 0
218#endif
219
220/*
221 * Vnode op for reading.
222 */
223int
224cd9660_read(ap)
225 struct vop_read_args /* {
226 struct vnode *a_vp;
227 struct uio *a_uio;
228 int a_ioflag;
229 struct ucred *a_cred;
230 } */ *ap;
231{
232 struct vnode *vp = ap->a_vp;
233 register struct uio *uio = ap->a_uio;
234 register struct iso_node *ip = VTOI(vp);
235 register struct iso_mnt *imp;
236 struct buf *bp;
237 daddr_t lbn, bn, rablock;
238 off_t diff;
239 int rasize, error = 0;
240 long size, n, on;
241
242 if (uio->uio_resid == 0)
243 return (0);
244 if (uio->uio_offset < 0)
245 return (EINVAL);
246 ip->i_flag |= IACC;
247 imp = ip->i_mnt;
248 do {
249 lbn = iso_lblkno(imp, uio->uio_offset);
250 on = iso_blkoff(imp, uio->uio_offset);
251 n = min((unsigned)(imp->logical_block_size - on),
252 uio->uio_resid);
253 diff = (off_t)ip->i_size - uio->uio_offset;
254 if (diff <= 0)
255 return (0);
256 if (diff < n)
257 n = diff;
258 size = iso_blksize(imp, ip, lbn);
259 rablock = lbn + 1;
260 if (doclusterread) {
261 if (iso_lblktosize(imp, rablock) <= ip->i_size)
262 error = cluster_read(vp, (off_t)ip->i_size,
263 lbn, size, NOCRED, &bp);
264 else
265 error = bread(vp, lbn, size, NOCRED, &bp);
266 } else {
267 if (vp->v_lastr + 1 == lbn &&
268 iso_lblktosize(imp, rablock) < ip->i_size) {
269 rasize = iso_blksize(imp, ip, rablock);
270 error = breadn(vp, lbn, size, &rablock,
271 &rasize, 1, NOCRED, &bp);
272 } else
273 error = bread(vp, lbn, size, NOCRED, &bp);
274 }
275 vp->v_lastr = lbn;
276 n = min(n, size - bp->b_resid);
277 if (error) {
278 brelse(bp);
279 return (error);
280 }
281
282 error = uiomove(bp->b_un.b_addr + on, (int)n, uio);
283 brelse(bp);
284 } while (error == 0 && uio->uio_resid > 0 && n != 0);
285 return (error);
286}
287
288/* ARGSUSED */
289int
290cd9660_ioctl(ap)
291 struct vop_ioctl_args /* {
292 struct vnode *a_vp;
293 int a_command;
294 caddr_t a_data;
295 int a_fflag;
296 struct ucred *a_cred;
297 struct proc *a_p;
298 } */ *ap;
299{
300 printf("You did ioctl for isofs !!\n");
301 return (ENOTTY);
302}
303
304/* ARGSUSED */
305int
306cd9660_select(ap)
307 struct vop_select_args /* {
308 struct vnode *a_vp;
309 int a_which;
310 int a_fflags;
311 struct ucred *a_cred;
312 struct proc *a_p;
313 } */ *ap;
314{
315
316 /*
317 * We should really check to see if I/O is possible.
318 */
319 return (1);
320}
321
322/*
323 * Mmap a file
324 *
325 * NB Currently unsupported.
326 */
327/* ARGSUSED */
328int
329cd9660_mmap(ap)
330 struct vop_mmap_args /* {
331 struct vnode *a_vp;
332 int a_fflags;
333 struct ucred *a_cred;
334 struct proc *a_p;
335 } */ *ap;
336{
337
338 return (EINVAL);
339}
340
341/*
342 * Seek on a file
343 *
344 * Nothing to do, so just return.
345 */
346/* ARGSUSED */
347int
348cd9660_seek(ap)
349 struct vop_seek_args /* {
350 struct vnode *a_vp;
351 off_t a_oldoff;
352 off_t a_newoff;
353 struct ucred *a_cred;
354 } */ *ap;
355{
356
357 return (0);
358}
359
360/*
361 * Structure for reading directories
362 */
363struct isoreaddir {
364 struct dirent saveent;
365 struct dirent assocent;
366 struct dirent current;
367 off_t saveoff;
368 off_t assocoff;
369 off_t curroff;
370 struct uio *uio;
371 off_t uio_off;
372 u_int *cookiep;
373 int ncookies;
374 int eof;
375};
376
377static int
378iso_uiodir(idp,dp,off)
379 struct isoreaddir *idp;
380 struct dirent *dp;
381 off_t off;
382{
383 int error;
384
385 dp->d_name[dp->d_namlen] = 0;
386 dp->d_reclen = DIRSIZ(dp);
387
388 if (idp->uio->uio_resid < dp->d_reclen) {
389 idp->eof = 0;
390 return -1;
391 }
392
393 if (idp->cookiep) {
394 if (idp->ncookies <= 0) {
395 idp->eof = 0;
396 return -1;
397 }
398
399 *idp->cookiep++ = off;
400 --idp->ncookies;
401 }
402
403 if (error = uiomove((caddr_t)dp,dp->d_reclen,idp->uio))
404 return error;
405 idp->uio_off = off;
406 return 0;
407}
408
409static int
410iso_shipdir(idp)
411 struct isoreaddir *idp;
412{
413 struct dirent *dp;
414 int cl, sl, assoc;
415 int error;
416 char *cname, *sname;
417
418 cl = idp->current.d_namlen;
419 cname = idp->current.d_name;
420 if (assoc = cl > 1 && *cname == ASSOCCHAR) {
421 cl--;
422 cname++;
423 }
424
425 dp = &idp->saveent;
426 sname = dp->d_name;
427 if (!(sl = dp->d_namlen)) {
428 dp = &idp->assocent;
429 sname = dp->d_name + 1;
430 sl = dp->d_namlen - 1;
431 }
432 if (sl > 0) {
433 if (sl != cl
434 || bcmp(sname,cname,sl)) {
435 if (idp->assocent.d_namlen) {
436 if (error = iso_uiodir(idp,&idp->assocent,idp->assocoff))
437 return error;
438 idp->assocent.d_namlen = 0;
439 }
440 if (idp->saveent.d_namlen) {
441 if (error = iso_uiodir(idp,&idp->saveent,idp->saveoff))
442 return error;
443 idp->saveent.d_namlen = 0;
444 }
445 }
446 }
447 idp->current.d_reclen = DIRSIZ(&idp->current);
448 if (assoc) {
449 idp->assocoff = idp->curroff;
450 bcopy(&idp->current,&idp->assocent,idp->current.d_reclen);
451 } else {
452 idp->saveoff = idp->curroff;
453 bcopy(&idp->current,&idp->saveent,idp->current.d_reclen);
454 }
455 return 0;
456}
457
458/*
459 * Vnode op for readdir
460 * XXX make sure everything still works now that eofflagp and cookiep
461 * are no longer args.
462 */
463int
464cd9660_readdir(ap)
465 struct vop_readdir_args /* {
466 struct vnode *a_vp;
467 struct uio *a_uio;
468 struct ucred *a_cred;
469 } */ *ap;
470{
471 register struct uio *uio = ap->a_uio;
472 struct isoreaddir *idp;
473 int entryoffsetinblock;
474 int error = 0;
475 int endsearch;
476 struct iso_directory_record *ep;
477 u_short elen;
478 int reclen;
479 struct iso_mnt *imp;
480 struct iso_node *ip;
481 struct buf *bp = NULL;
482 u_short tmplen;
483
484 ip = VTOI(ap->a_vp);
485 imp = ip->i_mnt;
486
487 MALLOC(idp,struct isoreaddir *,sizeof(*idp),M_TEMP,M_WAITOK);
488 idp->saveent.d_namlen = 0;
489 idp->assocent.d_namlen = 0;
490 idp->uio = uio;
491#if 0
492 idp->cookiep = cookies;
493 idp->ncookies = ncookies;
494 idp->eof = 1;
495#else
496 idp->cookiep = 0;
497#endif
498 idp->curroff = uio->uio_offset;
499
500 entryoffsetinblock = iso_blkoff(imp, idp->curroff);
501 if (entryoffsetinblock != 0) {
502 if (error = iso_blkatoff(ip, idp->curroff, &bp)) {
503 FREE(idp,M_TEMP);
504 return (error);
505 }
506 }
507
508 endsearch = ip->i_size;
509
510 while (idp->curroff < endsearch) {
511 /*
512 * If offset is on a block boundary,
513 * read the next directory block.
514 * Release previous if it exists.
515 */
516
517 if (iso_blkoff(imp, idp->curroff) == 0) {
518 if (bp != NULL)
519 brelse(bp);
520 if (error = iso_blkatoff(ip, idp->curroff, &bp))
521 break;
522 entryoffsetinblock = 0;
523 }
524 /*
525 * Get pointer to next entry.
526 */
527
528 ep = (struct iso_directory_record *)
529 (bp->b_un.b_addr + entryoffsetinblock);
530
531 reclen = isonum_711 (ep->length);
532 if (reclen == 0) {
533 /* skip to next block, if any */
534 idp->curroff = roundup (idp->curroff,
535 imp->logical_block_size);
536 continue;
537 }
538
539 if (reclen < ISO_DIRECTORY_RECORD_SIZE) {
540 error = EINVAL;
541 /* illegal entry, stop */
542 break;
543 }
544
545 if (entryoffsetinblock + reclen > imp->logical_block_size) {
546 error = EINVAL;
547 /* illegal directory, so stop looking */
548 break;
549 }
550
551 idp->current.d_namlen = isonum_711 (ep->name_len);
552 if (isonum_711(ep->flags)&2)
553 isodirino(&idp->current.d_fileno,ep,imp);
554 else
555 idp->current.d_fileno = dbtob(bp->b_blkno) +
556 idp->curroff;
557
558 if (reclen < ISO_DIRECTORY_RECORD_SIZE + idp->current.d_namlen) {
559 error = EINVAL;
560 /* illegal entry, stop */
561 break;
562 }
563
564 idp->curroff += reclen;
565 /*
566 *
567 */
568 switch (imp->iso_ftype) {
569 case ISO_FTYPE_RRIP:
570 cd9660_rrip_getname(ep,idp->current.d_name,
571 &tmplen,
572 &idp->current.d_fileno,imp);
573 idp->current.d_namlen = tmplen;
574 if (idp->current.d_namlen)
575 error = iso_uiodir(idp,&idp->current,idp->curroff);
576 break;
577 default: /* ISO_FTYPE_DEFAULT || ISO_FTYPE_9660 */
578 strcpy(idp->current.d_name,"..");
579 switch (ep->name[0]) {
580 case 0:
581 idp->current.d_namlen = 1;
582 error = iso_uiodir(idp,&idp->current,idp->curroff);
583 break;
584 case 1:
585 idp->current.d_namlen = 2;
586 error = iso_uiodir(idp,&idp->current,idp->curroff);
587 break;
588 default:
589 isofntrans(ep->name,idp->current.d_namlen,
590 idp->current.d_name, &elen,
591 imp->iso_ftype == ISO_FTYPE_9660,
592 isonum_711(ep->flags)&4);
593 idp->current.d_namlen = (u_char)elen;
594 if (imp->iso_ftype == ISO_FTYPE_DEFAULT)
595 error = iso_shipdir(idp);
596 else
597 error = iso_uiodir(idp,&idp->current,idp->curroff);
598 break;
599 }
600 }
601 if (error)
602 break;
603
604 entryoffsetinblock += reclen;
605 }
606
607 if (!error && imp->iso_ftype == ISO_FTYPE_DEFAULT) {
608 idp->current.d_namlen = 0;
609 error = iso_shipdir(idp);
610 }
611 if (error < 0)
612 error = 0;
613
614 if (bp)
615 brelse (bp);
616
617 uio->uio_offset = idp->uio_off;
618#if 0
619 *eofflagp = idp->eof;
620#endif
621
622 FREE(idp,M_TEMP);
623
624 return (error);
625}
626
627/*
628 * Return target name of a symbolic link
629 * Shouldn't we get the parent vnode and read the data from there?
630 * This could eventually result in deadlocks in cd9660_lookup.
631 * But otherwise the block read here is in the block buffer two times.
632 */
633typedef struct iso_directory_record ISODIR;
634typedef struct iso_node ISONODE;
635typedef struct iso_mnt ISOMNT;
636int
637cd9660_readlink(ap)
638 struct vop_readlink_args /* {
639 struct vnode *a_vp;
640 struct uio *a_uio;
641 struct ucred *a_cred;
642 } */ *ap;
643{
644 ISONODE *ip;
645 ISODIR *dirp;
646 ISOMNT *imp;
647 struct buf *bp;
648 u_short symlen;
649 int error;
650 char *symname;
651 ino_t ino;
652
653 ip = VTOI(ap->a_vp);
654 imp = ip->i_mnt;
655
656 if (imp->iso_ftype != ISO_FTYPE_RRIP)
657 return EINVAL;
658
659 /*
660 * Get parents directory record block that this inode included.
661 */
662 error = bread(imp->im_devvp,
663 iso_dblkno(imp, ip->i_number),
664 imp->logical_block_size,
665 NOCRED,
666 &bp);
667 if (error) {
668 brelse(bp);
669 return EINVAL;
670 }
671
672 /*
673 * Setup the directory pointer for this inode
674 */
675 dirp = (ISODIR *)(bp->b_un.b_addr + (ip->i_number & imp->im_bmask));
676#ifdef DEBUG
677 printf("lbn=%d,off=%d,bsize=%d,DEV_BSIZE=%d, dirp= %08x, b_addr=%08x, offset=%08x(%08x)\n",
678 (daddr_t)(ip->i_number >> imp->im_bshift),
679 ip->i_number & imp->im_bmask,
680 imp->logical_block_size,
681 DEV_BSIZE,
682 dirp,
683 bp->b_un.b_addr,
684 ip->i_number,
685 ip->i_number & imp->im_bmask );
686#endif
687
688 /*
689 * Just make sure, we have a right one....
690 * 1: Check not cross boundary on block
691 */
692 if ((ip->i_number & imp->im_bmask) + isonum_711(dirp->length)
693 > imp->logical_block_size) {
694 brelse(bp);
695 return EINVAL;
696 }
697
698 /*
699 * Now get a buffer
700 * Abuse a namei buffer for now.
701 */
702 MALLOC(symname,char *,MAXPATHLEN,M_NAMEI,M_WAITOK);
703
704 /*
705 * Ok, we just gathering a symbolic name in SL record.
706 */
707 if (cd9660_rrip_getsymname(dirp,symname,&symlen,imp) == 0) {
708 FREE(symname,M_NAMEI);
709 brelse(bp);
710 return EINVAL;
711 }
712 /*
713 * Don't forget before you leave from home ;-)
714 */
715 brelse(bp);
716
717 /*
718 * return with the symbolic name to caller's.
719 */
720 error = uiomove(symname,symlen,ap->a_uio);
721
722 FREE(symname,M_NAMEI);
723
724 return error;
725}
726
727/*
728 * Ufs abort op, called after namei() when a CREATE/DELETE isn't actually
729 * done. If a buffer has been saved in anticipation of a CREATE, delete it.
730 */
731int
732cd9660_abortop(ap)
733 struct vop_abortop_args /* {
734 struct vnode *a_dvp;
735 struct componentname *a_cnp;
736 } */ *ap;
737{
738 if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
739 FREE(ap->a_cnp->cn_pnbuf, M_NAMEI);
740 return 0;
741}
742
743/*
744 * Lock an inode.
745 */
746int
747cd9660_lock(ap)
748 struct vop_lock_args /* {
749 struct vnode *a_vp;
750 } */ *ap;
751{
752 register struct iso_node *ip = VTOI(ap->a_vp);
753
754 ISO_ILOCK(ip);
755 return 0;
756}
757
758/*
759 * Unlock an inode.
760 */
761int
762cd9660_unlock(ap)
763 struct vop_unlock_args /* {
764 struct vnode *a_vp;
765 } */ *ap;
766{
767 register struct iso_node *ip = VTOI(ap->a_vp);
768
769 if (!(ip->i_flag & ILOCKED))
770 panic("cd9660_unlock NOT LOCKED");
771 ISO_IUNLOCK(ip);
772 return 0;
773}
774
775/*
776 * Check for a locked inode.
777 */
778int
779cd9660_islocked(ap)
780 struct vop_islocked_args /* {
781 struct vnode *a_vp;
782 } */ *ap;
783{
784
785 if (VTOI(ap->a_vp)->i_flag & ILOCKED)
786 return 1;
787 return 0;
788}
789
790/*
791 * Calculate the logical to physical mapping if not done already,
792 * then call the device strategy routine.
793 */
794int
795cd9660_strategy(ap)
796 struct vop_strategy_args /* {
797 struct buf *a_bp;
798 } */ *ap;
799{
800 register struct buf *bp = ap->a_bp;
801 register struct vnode *vp = bp->b_vp;
802 register struct iso_node *ip;
803 int error;
804
805 ip = VTOI(vp);
806 if (vp->v_type == VBLK || vp->v_type == VCHR)
807 panic("cd9660_strategy: spec");
808 if (bp->b_blkno == bp->b_lblkno) {
809 if (error =
810 VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno, NULL)) {
811 bp->b_error = error;
812 bp->b_flags |= B_ERROR;
813 biodone(bp);
814 return (error);
815 }
816 if ((long)bp->b_blkno == -1)
817 clrbuf(bp);
818 }
819 if ((long)bp->b_blkno == -1) {
820 biodone(bp);
821 return (0);
822 }
823 vp = ip->i_devvp;
824 bp->b_dev = vp->v_rdev;
825 VOCALL (vp->v_op, VOFFSET(vop_strategy), ap);
826 return (0);
827}
828
829/*
830 * Print out the contents of an inode.
831 */
832int
833cd9660_print(ap)
834 struct vop_print_args /* {
835 struct vnode *a_vp;
836 } */ *ap;
837{
838 printf("tag VT_ISOFS, isofs vnode\n");
839 return 0;
840}
841
842/*
843 * Unsupported operation
844 */
845int
846cd9660_enotsupp()
847{
848
849 return (EOPNOTSUPP);
850}
851
852/*
853 * Global vfs data structures for isofs
854 */
855#define cd9660_create \
856 ((int (*) __P((struct vop_create_args *)))cd9660_enotsupp)
857#define cd9660_mknod ((int (*) __P((struct vop_mknod_args *)))cd9660_enotsupp)
858#define cd9660_setattr \
859 ((int (*) __P((struct vop_setattr_args *)))cd9660_enotsupp)
860#define cd9660_write ((int (*) __P((struct vop_write_args *)))cd9660_enotsupp)
861#define cd9660_fsync ((int (*) __P((struct vop_fsync_args *)))nullop)
862#define cd9660_remove \
863 ((int (*) __P((struct vop_remove_args *)))cd9660_enotsupp)
864#define cd9660_link ((int (*) __P((struct vop_link_args *)))cd9660_enotsupp)
865#define cd9660_rename \
866 ((int (*) __P((struct vop_rename_args *)))cd9660_enotsupp)
867#define cd9660_mkdir ((int (*) __P((struct vop_mkdir_args *)))cd9660_enotsupp)
868#define cd9660_rmdir ((int (*) __P((struct vop_rmdir_args *)))cd9660_enotsupp)
869#define cd9660_symlink \
870 ((int (*) __P((struct vop_symlink_args *)))cd9660_enotsupp)
871#define cd9660_pathconf \
872 ((int (*) __P((struct vop_pathconf_args *)))cd9660_enotsupp)
873#define cd9660_advlock \
874 ((int (*) __P((struct vop_advlock_args *)))cd9660_enotsupp)
875#define cd9660_blkatoff \
876 ((int (*) __P((struct vop_blkatoff_args *)))cd9660_enotsupp)
877#define cd9660_valloc ((int(*) __P(( \
878 struct vnode *pvp, \
879 int mode, \
880 struct ucred *cred, \
881 struct vnode **vpp))) cd9660_enotsupp)
882#define cd9660_vfree ((int (*) __P((struct vop_vfree_args *)))cd9660_enotsupp)
883#define cd9660_truncate \
884 ((int (*) __P((struct vop_truncate_args *)))cd9660_enotsupp)
885#define cd9660_update \
886 ((int (*) __P((struct vop_update_args *)))cd9660_enotsupp)
887#define cd9660_bwrite \
888 ((int (*) __P((struct vop_bwrite_args *)))cd9660_enotsupp)
889
890/*
891 * Global vfs data structures for nfs
892 */
893int (**cd9660_vnodeop_p)();
894struct vnodeopv_entry_desc cd9660_vnodeop_entries[] = {
895 { &vop_default_desc, vn_default_error },
896 { &vop_lookup_desc, cd9660_lookup }, /* lookup */
897 { &vop_create_desc, cd9660_create }, /* create */
898 { &vop_mknod_desc, cd9660_mknod }, /* mknod */
899 { &vop_open_desc, cd9660_open }, /* open */
900 { &vop_close_desc, cd9660_close }, /* close */
901 { &vop_access_desc, cd9660_access }, /* access */
902 { &vop_getattr_desc, cd9660_getattr }, /* getattr */
903 { &vop_setattr_desc, cd9660_setattr }, /* setattr */
904 { &vop_read_desc, cd9660_read }, /* read */
905 { &vop_write_desc, cd9660_write }, /* write */
906 { &vop_ioctl_desc, cd9660_ioctl }, /* ioctl */
907 { &vop_select_desc, cd9660_select }, /* select */
908 { &vop_mmap_desc, cd9660_mmap }, /* mmap */
909 { &vop_fsync_desc, cd9660_fsync }, /* fsync */
910 { &vop_seek_desc, cd9660_seek }, /* seek */
911 { &vop_remove_desc, cd9660_remove }, /* remove */
912 { &vop_link_desc, cd9660_link }, /* link */
913 { &vop_rename_desc, cd9660_rename }, /* rename */
914 { &vop_mkdir_desc, cd9660_mkdir }, /* mkdir */
915 { &vop_rmdir_desc, cd9660_rmdir }, /* rmdir */
916 { &vop_symlink_desc, cd9660_symlink }, /* symlink */
917 { &vop_readdir_desc, cd9660_readdir }, /* readdir */
918 { &vop_readlink_desc, cd9660_readlink },/* readlink */
919 { &vop_abortop_desc, cd9660_abortop }, /* abortop */
920 { &vop_inactive_desc, cd9660_inactive },/* inactive */
921 { &vop_reclaim_desc, cd9660_reclaim }, /* reclaim */
922 { &vop_lock_desc, cd9660_lock }, /* lock */
923 { &vop_unlock_desc, cd9660_unlock }, /* unlock */
924 { &vop_bmap_desc, cd9660_bmap }, /* bmap */
925 { &vop_strategy_desc, cd9660_strategy },/* strategy */
926 { &vop_print_desc, cd9660_print }, /* print */
927 { &vop_islocked_desc, cd9660_islocked },/* islocked */
928 { &vop_pathconf_desc, cd9660_pathconf },/* pathconf */
929 { &vop_advlock_desc, cd9660_advlock }, /* advlock */
930 { &vop_blkatoff_desc, cd9660_blkatoff },/* blkatoff */
931 { &vop_valloc_desc, cd9660_valloc }, /* valloc */
932 { &vop_vfree_desc, cd9660_vfree }, /* vfree */
933 { &vop_truncate_desc, cd9660_truncate },/* truncate */
934 { &vop_update_desc, cd9660_update }, /* update */
935 { &vop_bwrite_desc, vn_bwrite },
936 { (struct vnodeop_desc*)NULL, (int(*)())NULL }
937};
938struct vnodeopv_desc cd9660_vnodeop_opv_desc =
939 { &cd9660_vnodeop_p, cd9660_vnodeop_entries };
| 40 */
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/namei.h>
45#include <sys/resourcevar.h>
46#include <sys/kernel.h>
47#include <sys/file.h>
48#include <sys/stat.h>
49#include <sys/buf.h>
50#include <sys/proc.h>
51#include <sys/conf.h>
52#include <sys/mount.h>
53#include <sys/vnode.h>
54#include <miscfs/specfs/specdev.h>
55#include <miscfs/fifofs/fifo.h>
56#include <sys/malloc.h>
57#include <sys/dir.h>
58
59#include <isofs/cd9660/iso.h>
60#include <isofs/cd9660/cd9660_node.h>
61#include <isofs/cd9660/iso_rrip.h>
62
63#if 0
64/*
65 * Mknod vnode call
66 * Actually remap the device number
67 */
68cd9660_mknod(ndp, vap, cred, p)
69 struct nameidata *ndp;
70 struct ucred *cred;
71 struct vattr *vap;
72 struct proc *p;
73{
74#ifndef ISODEVMAP
75 free(ndp->ni_pnbuf, M_NAMEI);
76 vput(ndp->ni_dvp);
77 vput(ndp->ni_vp);
78 return EINVAL;
79#else
80 register struct vnode *vp;
81 struct iso_node *ip;
82 struct iso_dnode *dp;
83 int error;
84
85 vp = ndp->ni_vp;
86 ip = VTOI(vp);
87
88 if (ip->i_mnt->iso_ftype != ISO_FTYPE_RRIP
89 || vap->va_type != vp->v_type
90 || (vap->va_type != VCHR && vap->va_type != VBLK)) {
91 free(ndp->ni_pnbuf, M_NAMEI);
92 vput(ndp->ni_dvp);
93 vput(ndp->ni_vp);
94 return EINVAL;
95 }
96
97 dp = iso_dmap(ip->i_dev,ip->i_number,1);
98 if (ip->inode.iso_rdev == vap->va_rdev || vap->va_rdev == VNOVAL) {
99 /* same as the unmapped one, delete the mapping */
100 remque(dp);
101 FREE(dp,M_CACHE);
102 } else
103 /* enter new mapping */
104 dp->d_dev = vap->va_rdev;
105
106 /*
107 * Remove inode so that it will be reloaded by iget and
108 * checked to see if it is an alias of an existing entry
109 * in the inode cache.
110 */
111 vput(vp);
112 vp->v_type = VNON;
113 vgone(vp);
114 return (0);
115#endif
116}
117#endif
118
119/*
120 * Open called.
121 *
122 * Nothing to do.
123 */
124/* ARGSUSED */
125int
126cd9660_open(ap)
127 struct vop_open_args /* {
128 struct vnode *a_vp;
129 int a_mode;
130 struct ucred *a_cred;
131 struct proc *a_p;
132 } */ *ap;
133{
134 return (0);
135}
136
137/*
138 * Close called
139 *
140 * Update the times on the inode on writeable file systems.
141 */
142/* ARGSUSED */
143int
144cd9660_close(ap)
145 struct vop_close_args /* {
146 struct vnode *a_vp;
147 int a_fflag;
148 struct ucred *a_cred;
149 struct proc *a_p;
150 } */ *ap;
151{
152 return (0);
153}
154
155/*
156 * Check mode permission on inode pointer. Mode is READ, WRITE or EXEC.
157 * The mode is shifted to select the owner/group/other fields. The
158 * super user is granted all permissions.
159 */
160/* ARGSUSED */
161int
162cd9660_access(ap)
163 struct vop_access_args /* {
164 struct vnode *a_vp;
165 int a_mode;
166 struct ucred *a_cred;
167 struct proc *a_p;
168 } */ *ap;
169{
170 return (0);
171}
172
173int
174cd9660_getattr(ap)
175 struct vop_getattr_args /* {
176 struct vnode *a_vp;
177 struct vattr *a_vap;
178 struct ucred *a_cred;
179 struct proc *a_p;
180 } */ *ap;
181
182{
183 struct vnode *vp = ap->a_vp;
184 register struct vattr *vap = ap->a_vap;
185 register struct iso_node *ip = VTOI(vp);
186 int i;
187
188 vap->va_fsid = ip->i_dev;
189 vap->va_fileid = ip->i_number;
190
191 vap->va_mode = ip->inode.iso_mode;
192 vap->va_nlink = ip->inode.iso_links;
193 vap->va_uid = ip->inode.iso_uid;
194 vap->va_gid = ip->inode.iso_gid;
195 vap->va_atime = ip->inode.iso_atime;
196 vap->va_mtime = ip->inode.iso_mtime;
197 vap->va_ctime = ip->inode.iso_ctime;
198 vap->va_rdev = ip->inode.iso_rdev;
199
200 vap->va_size = (u_quad_t) ip->i_size;
201 vap->va_flags = 0;
202 vap->va_gen = 1;
203 vap->va_blocksize = ip->i_mnt->logical_block_size;
204 vap->va_bytes = (u_quad_t) ip->i_size;
205 vap->va_type = vp->v_type;
206 return (0);
207}
208
209#if ISO_DEFAULT_BLOCK_SIZE >= NBPG
210#ifdef DEBUG
211extern int doclusterread;
212#else
213#define doclusterread 1
214#endif
215#else
216/* XXX until cluster routines can handle block sizes less than one page */
217#define doclusterread 0
218#endif
219
220/*
221 * Vnode op for reading.
222 */
223int
224cd9660_read(ap)
225 struct vop_read_args /* {
226 struct vnode *a_vp;
227 struct uio *a_uio;
228 int a_ioflag;
229 struct ucred *a_cred;
230 } */ *ap;
231{
232 struct vnode *vp = ap->a_vp;
233 register struct uio *uio = ap->a_uio;
234 register struct iso_node *ip = VTOI(vp);
235 register struct iso_mnt *imp;
236 struct buf *bp;
237 daddr_t lbn, bn, rablock;
238 off_t diff;
239 int rasize, error = 0;
240 long size, n, on;
241
242 if (uio->uio_resid == 0)
243 return (0);
244 if (uio->uio_offset < 0)
245 return (EINVAL);
246 ip->i_flag |= IACC;
247 imp = ip->i_mnt;
248 do {
249 lbn = iso_lblkno(imp, uio->uio_offset);
250 on = iso_blkoff(imp, uio->uio_offset);
251 n = min((unsigned)(imp->logical_block_size - on),
252 uio->uio_resid);
253 diff = (off_t)ip->i_size - uio->uio_offset;
254 if (diff <= 0)
255 return (0);
256 if (diff < n)
257 n = diff;
258 size = iso_blksize(imp, ip, lbn);
259 rablock = lbn + 1;
260 if (doclusterread) {
261 if (iso_lblktosize(imp, rablock) <= ip->i_size)
262 error = cluster_read(vp, (off_t)ip->i_size,
263 lbn, size, NOCRED, &bp);
264 else
265 error = bread(vp, lbn, size, NOCRED, &bp);
266 } else {
267 if (vp->v_lastr + 1 == lbn &&
268 iso_lblktosize(imp, rablock) < ip->i_size) {
269 rasize = iso_blksize(imp, ip, rablock);
270 error = breadn(vp, lbn, size, &rablock,
271 &rasize, 1, NOCRED, &bp);
272 } else
273 error = bread(vp, lbn, size, NOCRED, &bp);
274 }
275 vp->v_lastr = lbn;
276 n = min(n, size - bp->b_resid);
277 if (error) {
278 brelse(bp);
279 return (error);
280 }
281
282 error = uiomove(bp->b_un.b_addr + on, (int)n, uio);
283 brelse(bp);
284 } while (error == 0 && uio->uio_resid > 0 && n != 0);
285 return (error);
286}
287
288/* ARGSUSED */
289int
290cd9660_ioctl(ap)
291 struct vop_ioctl_args /* {
292 struct vnode *a_vp;
293 int a_command;
294 caddr_t a_data;
295 int a_fflag;
296 struct ucred *a_cred;
297 struct proc *a_p;
298 } */ *ap;
299{
300 printf("You did ioctl for isofs !!\n");
301 return (ENOTTY);
302}
303
304/* ARGSUSED */
305int
306cd9660_select(ap)
307 struct vop_select_args /* {
308 struct vnode *a_vp;
309 int a_which;
310 int a_fflags;
311 struct ucred *a_cred;
312 struct proc *a_p;
313 } */ *ap;
314{
315
316 /*
317 * We should really check to see if I/O is possible.
318 */
319 return (1);
320}
321
322/*
323 * Mmap a file
324 *
325 * NB Currently unsupported.
326 */
327/* ARGSUSED */
328int
329cd9660_mmap(ap)
330 struct vop_mmap_args /* {
331 struct vnode *a_vp;
332 int a_fflags;
333 struct ucred *a_cred;
334 struct proc *a_p;
335 } */ *ap;
336{
337
338 return (EINVAL);
339}
340
341/*
342 * Seek on a file
343 *
344 * Nothing to do, so just return.
345 */
346/* ARGSUSED */
347int
348cd9660_seek(ap)
349 struct vop_seek_args /* {
350 struct vnode *a_vp;
351 off_t a_oldoff;
352 off_t a_newoff;
353 struct ucred *a_cred;
354 } */ *ap;
355{
356
357 return (0);
358}
359
360/*
361 * Structure for reading directories
362 */
363struct isoreaddir {
364 struct dirent saveent;
365 struct dirent assocent;
366 struct dirent current;
367 off_t saveoff;
368 off_t assocoff;
369 off_t curroff;
370 struct uio *uio;
371 off_t uio_off;
372 u_int *cookiep;
373 int ncookies;
374 int eof;
375};
376
377static int
378iso_uiodir(idp,dp,off)
379 struct isoreaddir *idp;
380 struct dirent *dp;
381 off_t off;
382{
383 int error;
384
385 dp->d_name[dp->d_namlen] = 0;
386 dp->d_reclen = DIRSIZ(dp);
387
388 if (idp->uio->uio_resid < dp->d_reclen) {
389 idp->eof = 0;
390 return -1;
391 }
392
393 if (idp->cookiep) {
394 if (idp->ncookies <= 0) {
395 idp->eof = 0;
396 return -1;
397 }
398
399 *idp->cookiep++ = off;
400 --idp->ncookies;
401 }
402
403 if (error = uiomove((caddr_t)dp,dp->d_reclen,idp->uio))
404 return error;
405 idp->uio_off = off;
406 return 0;
407}
408
409static int
410iso_shipdir(idp)
411 struct isoreaddir *idp;
412{
413 struct dirent *dp;
414 int cl, sl, assoc;
415 int error;
416 char *cname, *sname;
417
418 cl = idp->current.d_namlen;
419 cname = idp->current.d_name;
420 if (assoc = cl > 1 && *cname == ASSOCCHAR) {
421 cl--;
422 cname++;
423 }
424
425 dp = &idp->saveent;
426 sname = dp->d_name;
427 if (!(sl = dp->d_namlen)) {
428 dp = &idp->assocent;
429 sname = dp->d_name + 1;
430 sl = dp->d_namlen - 1;
431 }
432 if (sl > 0) {
433 if (sl != cl
434 || bcmp(sname,cname,sl)) {
435 if (idp->assocent.d_namlen) {
436 if (error = iso_uiodir(idp,&idp->assocent,idp->assocoff))
437 return error;
438 idp->assocent.d_namlen = 0;
439 }
440 if (idp->saveent.d_namlen) {
441 if (error = iso_uiodir(idp,&idp->saveent,idp->saveoff))
442 return error;
443 idp->saveent.d_namlen = 0;
444 }
445 }
446 }
447 idp->current.d_reclen = DIRSIZ(&idp->current);
448 if (assoc) {
449 idp->assocoff = idp->curroff;
450 bcopy(&idp->current,&idp->assocent,idp->current.d_reclen);
451 } else {
452 idp->saveoff = idp->curroff;
453 bcopy(&idp->current,&idp->saveent,idp->current.d_reclen);
454 }
455 return 0;
456}
457
458/*
459 * Vnode op for readdir
460 * XXX make sure everything still works now that eofflagp and cookiep
461 * are no longer args.
462 */
463int
464cd9660_readdir(ap)
465 struct vop_readdir_args /* {
466 struct vnode *a_vp;
467 struct uio *a_uio;
468 struct ucred *a_cred;
469 } */ *ap;
470{
471 register struct uio *uio = ap->a_uio;
472 struct isoreaddir *idp;
473 int entryoffsetinblock;
474 int error = 0;
475 int endsearch;
476 struct iso_directory_record *ep;
477 u_short elen;
478 int reclen;
479 struct iso_mnt *imp;
480 struct iso_node *ip;
481 struct buf *bp = NULL;
482 u_short tmplen;
483
484 ip = VTOI(ap->a_vp);
485 imp = ip->i_mnt;
486
487 MALLOC(idp,struct isoreaddir *,sizeof(*idp),M_TEMP,M_WAITOK);
488 idp->saveent.d_namlen = 0;
489 idp->assocent.d_namlen = 0;
490 idp->uio = uio;
491#if 0
492 idp->cookiep = cookies;
493 idp->ncookies = ncookies;
494 idp->eof = 1;
495#else
496 idp->cookiep = 0;
497#endif
498 idp->curroff = uio->uio_offset;
499
500 entryoffsetinblock = iso_blkoff(imp, idp->curroff);
501 if (entryoffsetinblock != 0) {
502 if (error = iso_blkatoff(ip, idp->curroff, &bp)) {
503 FREE(idp,M_TEMP);
504 return (error);
505 }
506 }
507
508 endsearch = ip->i_size;
509
510 while (idp->curroff < endsearch) {
511 /*
512 * If offset is on a block boundary,
513 * read the next directory block.
514 * Release previous if it exists.
515 */
516
517 if (iso_blkoff(imp, idp->curroff) == 0) {
518 if (bp != NULL)
519 brelse(bp);
520 if (error = iso_blkatoff(ip, idp->curroff, &bp))
521 break;
522 entryoffsetinblock = 0;
523 }
524 /*
525 * Get pointer to next entry.
526 */
527
528 ep = (struct iso_directory_record *)
529 (bp->b_un.b_addr + entryoffsetinblock);
530
531 reclen = isonum_711 (ep->length);
532 if (reclen == 0) {
533 /* skip to next block, if any */
534 idp->curroff = roundup (idp->curroff,
535 imp->logical_block_size);
536 continue;
537 }
538
539 if (reclen < ISO_DIRECTORY_RECORD_SIZE) {
540 error = EINVAL;
541 /* illegal entry, stop */
542 break;
543 }
544
545 if (entryoffsetinblock + reclen > imp->logical_block_size) {
546 error = EINVAL;
547 /* illegal directory, so stop looking */
548 break;
549 }
550
551 idp->current.d_namlen = isonum_711 (ep->name_len);
552 if (isonum_711(ep->flags)&2)
553 isodirino(&idp->current.d_fileno,ep,imp);
554 else
555 idp->current.d_fileno = dbtob(bp->b_blkno) +
556 idp->curroff;
557
558 if (reclen < ISO_DIRECTORY_RECORD_SIZE + idp->current.d_namlen) {
559 error = EINVAL;
560 /* illegal entry, stop */
561 break;
562 }
563
564 idp->curroff += reclen;
565 /*
566 *
567 */
568 switch (imp->iso_ftype) {
569 case ISO_FTYPE_RRIP:
570 cd9660_rrip_getname(ep,idp->current.d_name,
571 &tmplen,
572 &idp->current.d_fileno,imp);
573 idp->current.d_namlen = tmplen;
574 if (idp->current.d_namlen)
575 error = iso_uiodir(idp,&idp->current,idp->curroff);
576 break;
577 default: /* ISO_FTYPE_DEFAULT || ISO_FTYPE_9660 */
578 strcpy(idp->current.d_name,"..");
579 switch (ep->name[0]) {
580 case 0:
581 idp->current.d_namlen = 1;
582 error = iso_uiodir(idp,&idp->current,idp->curroff);
583 break;
584 case 1:
585 idp->current.d_namlen = 2;
586 error = iso_uiodir(idp,&idp->current,idp->curroff);
587 break;
588 default:
589 isofntrans(ep->name,idp->current.d_namlen,
590 idp->current.d_name, &elen,
591 imp->iso_ftype == ISO_FTYPE_9660,
592 isonum_711(ep->flags)&4);
593 idp->current.d_namlen = (u_char)elen;
594 if (imp->iso_ftype == ISO_FTYPE_DEFAULT)
595 error = iso_shipdir(idp);
596 else
597 error = iso_uiodir(idp,&idp->current,idp->curroff);
598 break;
599 }
600 }
601 if (error)
602 break;
603
604 entryoffsetinblock += reclen;
605 }
606
607 if (!error && imp->iso_ftype == ISO_FTYPE_DEFAULT) {
608 idp->current.d_namlen = 0;
609 error = iso_shipdir(idp);
610 }
611 if (error < 0)
612 error = 0;
613
614 if (bp)
615 brelse (bp);
616
617 uio->uio_offset = idp->uio_off;
618#if 0
619 *eofflagp = idp->eof;
620#endif
621
622 FREE(idp,M_TEMP);
623
624 return (error);
625}
626
627/*
628 * Return target name of a symbolic link
629 * Shouldn't we get the parent vnode and read the data from there?
630 * This could eventually result in deadlocks in cd9660_lookup.
631 * But otherwise the block read here is in the block buffer two times.
632 */
633typedef struct iso_directory_record ISODIR;
634typedef struct iso_node ISONODE;
635typedef struct iso_mnt ISOMNT;
636int
637cd9660_readlink(ap)
638 struct vop_readlink_args /* {
639 struct vnode *a_vp;
640 struct uio *a_uio;
641 struct ucred *a_cred;
642 } */ *ap;
643{
644 ISONODE *ip;
645 ISODIR *dirp;
646 ISOMNT *imp;
647 struct buf *bp;
648 u_short symlen;
649 int error;
650 char *symname;
651 ino_t ino;
652
653 ip = VTOI(ap->a_vp);
654 imp = ip->i_mnt;
655
656 if (imp->iso_ftype != ISO_FTYPE_RRIP)
657 return EINVAL;
658
659 /*
660 * Get parents directory record block that this inode included.
661 */
662 error = bread(imp->im_devvp,
663 iso_dblkno(imp, ip->i_number),
664 imp->logical_block_size,
665 NOCRED,
666 &bp);
667 if (error) {
668 brelse(bp);
669 return EINVAL;
670 }
671
672 /*
673 * Setup the directory pointer for this inode
674 */
675 dirp = (ISODIR *)(bp->b_un.b_addr + (ip->i_number & imp->im_bmask));
676#ifdef DEBUG
677 printf("lbn=%d,off=%d,bsize=%d,DEV_BSIZE=%d, dirp= %08x, b_addr=%08x, offset=%08x(%08x)\n",
678 (daddr_t)(ip->i_number >> imp->im_bshift),
679 ip->i_number & imp->im_bmask,
680 imp->logical_block_size,
681 DEV_BSIZE,
682 dirp,
683 bp->b_un.b_addr,
684 ip->i_number,
685 ip->i_number & imp->im_bmask );
686#endif
687
688 /*
689 * Just make sure, we have a right one....
690 * 1: Check not cross boundary on block
691 */
692 if ((ip->i_number & imp->im_bmask) + isonum_711(dirp->length)
693 > imp->logical_block_size) {
694 brelse(bp);
695 return EINVAL;
696 }
697
698 /*
699 * Now get a buffer
700 * Abuse a namei buffer for now.
701 */
702 MALLOC(symname,char *,MAXPATHLEN,M_NAMEI,M_WAITOK);
703
704 /*
705 * Ok, we just gathering a symbolic name in SL record.
706 */
707 if (cd9660_rrip_getsymname(dirp,symname,&symlen,imp) == 0) {
708 FREE(symname,M_NAMEI);
709 brelse(bp);
710 return EINVAL;
711 }
712 /*
713 * Don't forget before you leave from home ;-)
714 */
715 brelse(bp);
716
717 /*
718 * return with the symbolic name to caller's.
719 */
720 error = uiomove(symname,symlen,ap->a_uio);
721
722 FREE(symname,M_NAMEI);
723
724 return error;
725}
726
727/*
728 * Ufs abort op, called after namei() when a CREATE/DELETE isn't actually
729 * done. If a buffer has been saved in anticipation of a CREATE, delete it.
730 */
731int
732cd9660_abortop(ap)
733 struct vop_abortop_args /* {
734 struct vnode *a_dvp;
735 struct componentname *a_cnp;
736 } */ *ap;
737{
738 if ((ap->a_cnp->cn_flags & (HASBUF | SAVESTART)) == HASBUF)
739 FREE(ap->a_cnp->cn_pnbuf, M_NAMEI);
740 return 0;
741}
742
743/*
744 * Lock an inode.
745 */
746int
747cd9660_lock(ap)
748 struct vop_lock_args /* {
749 struct vnode *a_vp;
750 } */ *ap;
751{
752 register struct iso_node *ip = VTOI(ap->a_vp);
753
754 ISO_ILOCK(ip);
755 return 0;
756}
757
758/*
759 * Unlock an inode.
760 */
761int
762cd9660_unlock(ap)
763 struct vop_unlock_args /* {
764 struct vnode *a_vp;
765 } */ *ap;
766{
767 register struct iso_node *ip = VTOI(ap->a_vp);
768
769 if (!(ip->i_flag & ILOCKED))
770 panic("cd9660_unlock NOT LOCKED");
771 ISO_IUNLOCK(ip);
772 return 0;
773}
774
775/*
776 * Check for a locked inode.
777 */
778int
779cd9660_islocked(ap)
780 struct vop_islocked_args /* {
781 struct vnode *a_vp;
782 } */ *ap;
783{
784
785 if (VTOI(ap->a_vp)->i_flag & ILOCKED)
786 return 1;
787 return 0;
788}
789
790/*
791 * Calculate the logical to physical mapping if not done already,
792 * then call the device strategy routine.
793 */
794int
795cd9660_strategy(ap)
796 struct vop_strategy_args /* {
797 struct buf *a_bp;
798 } */ *ap;
799{
800 register struct buf *bp = ap->a_bp;
801 register struct vnode *vp = bp->b_vp;
802 register struct iso_node *ip;
803 int error;
804
805 ip = VTOI(vp);
806 if (vp->v_type == VBLK || vp->v_type == VCHR)
807 panic("cd9660_strategy: spec");
808 if (bp->b_blkno == bp->b_lblkno) {
809 if (error =
810 VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno, NULL)) {
811 bp->b_error = error;
812 bp->b_flags |= B_ERROR;
813 biodone(bp);
814 return (error);
815 }
816 if ((long)bp->b_blkno == -1)
817 clrbuf(bp);
818 }
819 if ((long)bp->b_blkno == -1) {
820 biodone(bp);
821 return (0);
822 }
823 vp = ip->i_devvp;
824 bp->b_dev = vp->v_rdev;
825 VOCALL (vp->v_op, VOFFSET(vop_strategy), ap);
826 return (0);
827}
828
829/*
830 * Print out the contents of an inode.
831 */
832int
833cd9660_print(ap)
834 struct vop_print_args /* {
835 struct vnode *a_vp;
836 } */ *ap;
837{
838 printf("tag VT_ISOFS, isofs vnode\n");
839 return 0;
840}
841
842/*
843 * Unsupported operation
844 */
845int
846cd9660_enotsupp()
847{
848
849 return (EOPNOTSUPP);
850}
851
852/*
853 * Global vfs data structures for isofs
854 */
855#define cd9660_create \
856 ((int (*) __P((struct vop_create_args *)))cd9660_enotsupp)
857#define cd9660_mknod ((int (*) __P((struct vop_mknod_args *)))cd9660_enotsupp)
858#define cd9660_setattr \
859 ((int (*) __P((struct vop_setattr_args *)))cd9660_enotsupp)
860#define cd9660_write ((int (*) __P((struct vop_write_args *)))cd9660_enotsupp)
861#define cd9660_fsync ((int (*) __P((struct vop_fsync_args *)))nullop)
862#define cd9660_remove \
863 ((int (*) __P((struct vop_remove_args *)))cd9660_enotsupp)
864#define cd9660_link ((int (*) __P((struct vop_link_args *)))cd9660_enotsupp)
865#define cd9660_rename \
866 ((int (*) __P((struct vop_rename_args *)))cd9660_enotsupp)
867#define cd9660_mkdir ((int (*) __P((struct vop_mkdir_args *)))cd9660_enotsupp)
868#define cd9660_rmdir ((int (*) __P((struct vop_rmdir_args *)))cd9660_enotsupp)
869#define cd9660_symlink \
870 ((int (*) __P((struct vop_symlink_args *)))cd9660_enotsupp)
871#define cd9660_pathconf \
872 ((int (*) __P((struct vop_pathconf_args *)))cd9660_enotsupp)
873#define cd9660_advlock \
874 ((int (*) __P((struct vop_advlock_args *)))cd9660_enotsupp)
875#define cd9660_blkatoff \
876 ((int (*) __P((struct vop_blkatoff_args *)))cd9660_enotsupp)
877#define cd9660_valloc ((int(*) __P(( \
878 struct vnode *pvp, \
879 int mode, \
880 struct ucred *cred, \
881 struct vnode **vpp))) cd9660_enotsupp)
882#define cd9660_vfree ((int (*) __P((struct vop_vfree_args *)))cd9660_enotsupp)
883#define cd9660_truncate \
884 ((int (*) __P((struct vop_truncate_args *)))cd9660_enotsupp)
885#define cd9660_update \
886 ((int (*) __P((struct vop_update_args *)))cd9660_enotsupp)
887#define cd9660_bwrite \
888 ((int (*) __P((struct vop_bwrite_args *)))cd9660_enotsupp)
889
890/*
891 * Global vfs data structures for nfs
892 */
893int (**cd9660_vnodeop_p)();
894struct vnodeopv_entry_desc cd9660_vnodeop_entries[] = {
895 { &vop_default_desc, vn_default_error },
896 { &vop_lookup_desc, cd9660_lookup }, /* lookup */
897 { &vop_create_desc, cd9660_create }, /* create */
898 { &vop_mknod_desc, cd9660_mknod }, /* mknod */
899 { &vop_open_desc, cd9660_open }, /* open */
900 { &vop_close_desc, cd9660_close }, /* close */
901 { &vop_access_desc, cd9660_access }, /* access */
902 { &vop_getattr_desc, cd9660_getattr }, /* getattr */
903 { &vop_setattr_desc, cd9660_setattr }, /* setattr */
904 { &vop_read_desc, cd9660_read }, /* read */
905 { &vop_write_desc, cd9660_write }, /* write */
906 { &vop_ioctl_desc, cd9660_ioctl }, /* ioctl */
907 { &vop_select_desc, cd9660_select }, /* select */
908 { &vop_mmap_desc, cd9660_mmap }, /* mmap */
909 { &vop_fsync_desc, cd9660_fsync }, /* fsync */
910 { &vop_seek_desc, cd9660_seek }, /* seek */
911 { &vop_remove_desc, cd9660_remove }, /* remove */
912 { &vop_link_desc, cd9660_link }, /* link */
913 { &vop_rename_desc, cd9660_rename }, /* rename */
914 { &vop_mkdir_desc, cd9660_mkdir }, /* mkdir */
915 { &vop_rmdir_desc, cd9660_rmdir }, /* rmdir */
916 { &vop_symlink_desc, cd9660_symlink }, /* symlink */
917 { &vop_readdir_desc, cd9660_readdir }, /* readdir */
918 { &vop_readlink_desc, cd9660_readlink },/* readlink */
919 { &vop_abortop_desc, cd9660_abortop }, /* abortop */
920 { &vop_inactive_desc, cd9660_inactive },/* inactive */
921 { &vop_reclaim_desc, cd9660_reclaim }, /* reclaim */
922 { &vop_lock_desc, cd9660_lock }, /* lock */
923 { &vop_unlock_desc, cd9660_unlock }, /* unlock */
924 { &vop_bmap_desc, cd9660_bmap }, /* bmap */
925 { &vop_strategy_desc, cd9660_strategy },/* strategy */
926 { &vop_print_desc, cd9660_print }, /* print */
927 { &vop_islocked_desc, cd9660_islocked },/* islocked */
928 { &vop_pathconf_desc, cd9660_pathconf },/* pathconf */
929 { &vop_advlock_desc, cd9660_advlock }, /* advlock */
930 { &vop_blkatoff_desc, cd9660_blkatoff },/* blkatoff */
931 { &vop_valloc_desc, cd9660_valloc }, /* valloc */
932 { &vop_vfree_desc, cd9660_vfree }, /* vfree */
933 { &vop_truncate_desc, cd9660_truncate },/* truncate */
934 { &vop_update_desc, cd9660_update }, /* update */
935 { &vop_bwrite_desc, vn_bwrite },
936 { (struct vnodeop_desc*)NULL, (int(*)())NULL }
937};
938struct vnodeopv_desc cd9660_vnodeop_opv_desc =
939 { &cd9660_vnodeop_p, cd9660_vnodeop_entries };
|
940
941/*
942 * Special device vnode ops
943 */
944int (**cd9660_specop_p)();
945struct vnodeopv_entry_desc cd9660_specop_entries[] = {
946 { &vop_default_desc, vn_default_error },
947 { &vop_lookup_desc, spec_lookup }, /* lookup */
948 { &vop_create_desc, cd9660_create }, /* create */
949 { &vop_mknod_desc, cd9660_mknod }, /* mknod */
950 { &vop_open_desc, spec_open }, /* open */
951 { &vop_close_desc, spec_close }, /* close */
952 { &vop_access_desc, cd9660_access }, /* access */
953 { &vop_getattr_desc, cd9660_getattr }, /* getattr */
954 { &vop_setattr_desc, cd9660_setattr }, /* setattr */
955 { &vop_read_desc, spec_read }, /* read */
956 { &vop_write_desc, spec_write }, /* write */
957 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */
958 { &vop_select_desc, spec_select }, /* select */
959 { &vop_mmap_desc, spec_mmap }, /* mmap */
960 { &vop_fsync_desc, spec_fsync }, /* fsync */
961 { &vop_seek_desc, spec_seek }, /* seek */
962 { &vop_remove_desc, cd9660_remove }, /* remove */
963 { &vop_link_desc, cd9660_link }, /* link */
964 { &vop_rename_desc, cd9660_rename }, /* rename */
965 { &vop_mkdir_desc, cd9660_mkdir }, /* mkdir */
966 { &vop_rmdir_desc, cd9660_rmdir }, /* rmdir */
967 { &vop_symlink_desc, cd9660_symlink }, /* symlink */
968 { &vop_readdir_desc, spec_readdir }, /* readdir */
969 { &vop_readlink_desc, spec_readlink }, /* readlink */
970 { &vop_abortop_desc, spec_abortop }, /* abortop */
971 { &vop_inactive_desc, cd9660_inactive },/* inactive */
972 { &vop_reclaim_desc, cd9660_reclaim }, /* reclaim */
973 { &vop_lock_desc, cd9660_lock }, /* lock */
974 { &vop_unlock_desc, cd9660_unlock }, /* unlock */
975 { &vop_bmap_desc, spec_bmap }, /* bmap */
976 /* XXX strategy: panics, should be notsupp instead? */
977 { &vop_strategy_desc, cd9660_strategy },/* strategy */
978 { &vop_print_desc, cd9660_print }, /* print */
979 { &vop_islocked_desc, cd9660_islocked },/* islocked */
980 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */
981 { &vop_advlock_desc, spec_advlock }, /* advlock */
982 { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */
983 { &vop_valloc_desc, spec_valloc }, /* valloc */
984 { &vop_vfree_desc, spec_vfree }, /* vfree */
985 { &vop_truncate_desc, spec_truncate }, /* truncate */
986 { &vop_update_desc, cd9660_update }, /* update */
987 { &vop_bwrite_desc, vn_bwrite },
988 { (struct vnodeop_desc*)NULL, (int(*)())NULL }
989};
990struct vnodeopv_desc cd9660_specop_opv_desc =
991 { &cd9660_specop_p, cd9660_specop_entries };
| 941
942/*
943 * Special device vnode ops
944 */
945int (**cd9660_specop_p)();
946struct vnodeopv_entry_desc cd9660_specop_entries[] = {
947 { &vop_default_desc, vn_default_error },
948 { &vop_lookup_desc, spec_lookup }, /* lookup */
949 { &vop_create_desc, cd9660_create }, /* create */
950 { &vop_mknod_desc, cd9660_mknod }, /* mknod */
951 { &vop_open_desc, spec_open }, /* open */
952 { &vop_close_desc, spec_close }, /* close */
953 { &vop_access_desc, cd9660_access }, /* access */
954 { &vop_getattr_desc, cd9660_getattr }, /* getattr */
955 { &vop_setattr_desc, cd9660_setattr }, /* setattr */
956 { &vop_read_desc, spec_read }, /* read */
957 { &vop_write_desc, spec_write }, /* write */
958 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */
959 { &vop_select_desc, spec_select }, /* select */
960 { &vop_mmap_desc, spec_mmap }, /* mmap */
961 { &vop_fsync_desc, spec_fsync }, /* fsync */
962 { &vop_seek_desc, spec_seek }, /* seek */
963 { &vop_remove_desc, cd9660_remove }, /* remove */
964 { &vop_link_desc, cd9660_link }, /* link */
965 { &vop_rename_desc, cd9660_rename }, /* rename */
966 { &vop_mkdir_desc, cd9660_mkdir }, /* mkdir */
967 { &vop_rmdir_desc, cd9660_rmdir }, /* rmdir */
968 { &vop_symlink_desc, cd9660_symlink }, /* symlink */
969 { &vop_readdir_desc, spec_readdir }, /* readdir */
970 { &vop_readlink_desc, spec_readlink }, /* readlink */
971 { &vop_abortop_desc, spec_abortop }, /* abortop */
972 { &vop_inactive_desc, cd9660_inactive },/* inactive */
973 { &vop_reclaim_desc, cd9660_reclaim }, /* reclaim */
974 { &vop_lock_desc, cd9660_lock }, /* lock */
975 { &vop_unlock_desc, cd9660_unlock }, /* unlock */
976 { &vop_bmap_desc, spec_bmap }, /* bmap */
977 /* XXX strategy: panics, should be notsupp instead? */
978 { &vop_strategy_desc, cd9660_strategy },/* strategy */
979 { &vop_print_desc, cd9660_print }, /* print */
980 { &vop_islocked_desc, cd9660_islocked },/* islocked */
981 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */
982 { &vop_advlock_desc, spec_advlock }, /* advlock */
983 { &vop_blkatoff_desc, spec_blkatoff }, /* blkatoff */
984 { &vop_valloc_desc, spec_valloc }, /* valloc */
985 { &vop_vfree_desc, spec_vfree }, /* vfree */
986 { &vop_truncate_desc, spec_truncate }, /* truncate */
987 { &vop_update_desc, cd9660_update }, /* update */
988 { &vop_bwrite_desc, vn_bwrite },
989 { (struct vnodeop_desc*)NULL, (int(*)())NULL }
990};
991struct vnodeopv_desc cd9660_specop_opv_desc =
992 { &cd9660_specop_p, cd9660_specop_entries };
|
992
993#ifdef FIFO
994int (**cd9660_fifoop_p)();
995struct vnodeopv_entry_desc cd9660_fifoop_entries[] = {
996 { &vop_default_desc, vn_default_error },
997 { &vop_lookup_desc, fifo_lookup }, /* lookup */
998 { &vop_create_desc, cd9660_create }, /* create */
999 { &vop_mknod_desc, cd9660_mknod }, /* mknod */
1000 { &vop_open_desc, fifo_open }, /* open */
1001 { &vop_close_desc, fifo_close }, /* close */
1002 { &vop_access_desc, cd9660_access }, /* access */
1003 { &vop_getattr_desc, cd9660_getattr }, /* getattr */
1004 { &vop_setattr_desc, cd9660_setattr }, /* setattr */
1005 { &vop_read_desc, fifo_read }, /* read */
1006 { &vop_write_desc, fifo_write }, /* write */
1007 { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */
1008 { &vop_select_desc, fifo_select }, /* select */
1009 { &vop_mmap_desc, fifo_mmap }, /* mmap */
1010 { &vop_fsync_desc, fifo_fsync }, /* fsync */
1011 { &vop_seek_desc, fifo_seek }, /* seek */
1012 { &vop_remove_desc, cd9660_remove }, /* remove */
1013 { &vop_link_desc, cd9660_link }, /* link */
1014 { &vop_rename_desc, cd9660_rename }, /* rename */
1015 { &vop_mkdir_desc, cd9660_mkdir }, /* mkdir */
1016 { &vop_rmdir_desc, cd9660_rmdir }, /* rmdir */
1017 { &vop_symlink_desc, cd9660_symlink }, /* symlink */
1018 { &vop_readdir_desc, fifo_readdir }, /* readdir */
1019 { &vop_readlink_desc, fifo_readlink }, /* readlink */
1020 { &vop_abortop_desc, fifo_abortop }, /* abortop */
1021 { &vop_inactive_desc, cd9660_inactive },/* inactive */
1022 { &vop_reclaim_desc, cd9660_reclaim }, /* reclaim */
1023 { &vop_lock_desc, cd9660_lock }, /* lock */
1024 { &vop_unlock_desc, cd9660_unlock }, /* unlock */
1025 { &vop_bmap_desc, fifo_bmap }, /* bmap */
1026 { &vop_strategy_desc, fifo_badop }, /* strategy */
1027 { &vop_print_desc, cd9660_print }, /* print */
1028 { &vop_islocked_desc, cd9660_islocked },/* islocked */
1029 { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */
1030 { &vop_advlock_desc, fifo_advlock }, /* advlock */
1031 { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */
1032 { &vop_valloc_desc, fifo_valloc }, /* valloc */
1033 { &vop_vfree_desc, fifo_vfree }, /* vfree */
1034 { &vop_truncate_desc, fifo_truncate }, /* truncate */
1035 { &vop_update_desc, cd9660_update }, /* update */
1036 { &vop_bwrite_desc, vn_bwrite },
1037 { (struct vnodeop_desc*)NULL, (int(*)())NULL }
1038};
1039struct vnodeopv_desc cd9660_fifoop_opv_desc =
1040 { &cd9660_fifoop_p, cd9660_fifoop_entries };
| 994
995#ifdef FIFO
996int (**cd9660_fifoop_p)();
997struct vnodeopv_entry_desc cd9660_fifoop_entries[] = {
998 { &vop_default_desc, vn_default_error },
999 { &vop_lookup_desc, fifo_lookup }, /* lookup */
1000 { &vop_create_desc, cd9660_create }, /* create */
1001 { &vop_mknod_desc, cd9660_mknod }, /* mknod */
1002 { &vop_open_desc, fifo_open }, /* open */
1003 { &vop_close_desc, fifo_close }, /* close */
1004 { &vop_access_desc, cd9660_access }, /* access */
1005 { &vop_getattr_desc, cd9660_getattr }, /* getattr */
1006 { &vop_setattr_desc, cd9660_setattr }, /* setattr */
1007 { &vop_read_desc, fifo_read }, /* read */
1008 { &vop_write_desc, fifo_write }, /* write */
1009 { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */
1010 { &vop_select_desc, fifo_select }, /* select */
1011 { &vop_mmap_desc, fifo_mmap }, /* mmap */
1012 { &vop_fsync_desc, fifo_fsync }, /* fsync */
1013 { &vop_seek_desc, fifo_seek }, /* seek */
1014 { &vop_remove_desc, cd9660_remove }, /* remove */
1015 { &vop_link_desc, cd9660_link }, /* link */
1016 { &vop_rename_desc, cd9660_rename }, /* rename */
1017 { &vop_mkdir_desc, cd9660_mkdir }, /* mkdir */
1018 { &vop_rmdir_desc, cd9660_rmdir }, /* rmdir */
1019 { &vop_symlink_desc, cd9660_symlink }, /* symlink */
1020 { &vop_readdir_desc, fifo_readdir }, /* readdir */
1021 { &vop_readlink_desc, fifo_readlink }, /* readlink */
1022 { &vop_abortop_desc, fifo_abortop }, /* abortop */
1023 { &vop_inactive_desc, cd9660_inactive },/* inactive */
1024 { &vop_reclaim_desc, cd9660_reclaim }, /* reclaim */
1025 { &vop_lock_desc, cd9660_lock }, /* lock */
1026 { &vop_unlock_desc, cd9660_unlock }, /* unlock */
1027 { &vop_bmap_desc, fifo_bmap }, /* bmap */
1028 { &vop_strategy_desc, fifo_badop }, /* strategy */
1029 { &vop_print_desc, cd9660_print }, /* print */
1030 { &vop_islocked_desc, cd9660_islocked },/* islocked */
1031 { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */
1032 { &vop_advlock_desc, fifo_advlock }, /* advlock */
1033 { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */
1034 { &vop_valloc_desc, fifo_valloc }, /* valloc */
1035 { &vop_vfree_desc, fifo_vfree }, /* vfree */
1036 { &vop_truncate_desc, fifo_truncate }, /* truncate */
1037 { &vop_update_desc, cd9660_update }, /* update */
1038 { &vop_bwrite_desc, vn_bwrite },
1039 { (struct vnodeop_desc*)NULL, (int(*)())NULL }
1040};
1041struct vnodeopv_desc cd9660_fifoop_opv_desc =
1042 { &cd9660_fifoop_p, cd9660_fifoop_entries };
|