3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley
6 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
7 * Support code is derived from software contributed to Berkeley
8 * by Atsushi Murai (amurai@spec.co.jp).
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * @(#)cd9660_vfsops.c 8.18 (Berkeley) 5/22/95
39 * $FreeBSD: src/sys/isofs/cd9660/cd9660_vfsops.c,v 1.74.2.7 2002/04/08 09:39:29 bde Exp $
42 #include <sys/param.h>
43 #include <sys/systm.h>
46 #include <sys/nlookup.h>
47 #include <sys/kernel.h>
48 #include <sys/vnode.h>
49 #include <sys/mount.h>
53 #include <sys/fcntl.h>
54 #include <sys/malloc.h>
56 #include <sys/syslog.h>
57 #include <sys/iconv.h>
59 #include <vm/vm_zone.h>
65 #include "cd9660_node.h"
66 #include "cd9660_mount.h"
68 extern struct vop_ops cd9660_vnode_vops;
69 extern struct vop_ops cd9660_spec_vops;
70 extern struct vop_ops cd9660_fifo_vops;
72 MALLOC_DEFINE(M_ISOFSMNT, "ISOFS mount", "ISOFS mount structure");
73 MALLOC_DEFINE(M_ISOFSNODE, "ISOFS node", "ISOFS vnode private part");
75 struct iconv_functions *cd9660_iconv = NULL;
77 static int cd9660_mount (struct mount *, char *, caddr_t, struct ucred *);
78 static int cd9660_unmount (struct mount *, int);
79 static int cd9660_root (struct mount *, struct vnode **);
80 static int cd9660_statfs (struct mount *, struct statfs *, struct ucred *);
81 static int cd9660_vget (struct mount *, struct vnode *, ino_t, struct vnode **);
82 static int cd9660_fhtovp (struct mount *, struct vnode *rootvp,
83 struct fid *, struct vnode **);
84 static int cd9660_checkexp (struct mount *, struct sockaddr *,
85 int *, struct ucred **);
86 static int cd9660_vptofh (struct vnode *, struct fid *);
88 static struct vfsops cd9660_vfsops = {
89 .vfs_mount = cd9660_mount,
90 .vfs_unmount = cd9660_unmount,
91 .vfs_root = cd9660_root,
92 .vfs_statfs = cd9660_statfs,
93 .vfs_sync = vfs_stdsync,
94 .vfs_vget = cd9660_vget,
95 .vfs_fhtovp = cd9660_fhtovp,
96 .vfs_checkexp = cd9660_checkexp,
97 .vfs_vptofh = cd9660_vptofh,
98 .vfs_init = cd9660_init,
99 .vfs_uninit = cd9660_uninit,
101 VFS_SET(cd9660_vfsops, cd9660, VFCF_READONLY);
102 MODULE_VERSION(cd9660, 1);
106 * Called by vfs_mountroot when iso is going to be mounted as root.
109 static int iso_get_ssector (cdev_t dev);
110 static int iso_mountfs (struct vnode *devvp, struct mount *mp,
111 struct iso_args *argp);
114 * Try to find the start of the last data track on this CD-ROM. This
115 * is used to mount the last session of a multi-session CD. Bail out
116 * and return 0 if we fail, this is always a safe bet.
119 iso_get_ssector(cdev_t dev)
121 struct ioc_toc_header h;
122 struct ioc_read_toc_single_entry t;
125 if (dev_dioctl(dev, CDIOREADTOCHEADER, (caddr_t)&h, FREAD,
126 proc0.p_ucred, NULL, NULL) != 0)
129 for (i = h.ending_track; i >= 0; i--) {
130 t.address_format = CD_LBA_FORMAT;
132 if (dev_dioctl(dev, CDIOREADTOCENTRY, (caddr_t)&t, FREAD,
133 proc0.p_ucred, NULL, NULL) != 0) {
136 if ((t.entry.control & 4) != 0)
137 /* found a data track */
144 return ntohl(t.entry.addr.lba);
148 iso_mountroot(struct mount *mp)
150 struct iso_args args;
151 struct vnode *rootvp;
154 if ((error = bdevvp(rootdev, &rootvp))) {
155 kprintf("iso_mountroot: can't find rootvp\n");
158 args.flags = ISOFSMNT_ROOT;
160 vn_lock(rootvp, LK_EXCLUSIVE | LK_RETRY);
161 error = VOP_OPEN(rootvp, FREAD, FSCRED, NULL);
166 args.ssector = iso_get_ssector(rootdev);
168 vn_lock(rootvp, LK_EXCLUSIVE | LK_RETRY);
169 VOP_CLOSE(rootvp, FREAD, NULL);
173 kprintf("iso_mountroot(): using session at block %d\n",
175 if ((error = iso_mountfs(rootvp, mp, &args)) != 0)
178 cd9660_statfs(mp, &mp->mnt_stat, proc0.p_ucred);
188 cd9660_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred)
191 struct iso_args args;
195 struct iso_mnt *imp = NULL;
196 struct nlookupdata nd;
198 if ((mp->mnt_flag & (MNT_ROOTFS|MNT_UPDATE)) == MNT_ROOTFS) {
199 return (iso_mountroot(mp));
201 if ((error = copyin(data, (caddr_t)&args, sizeof (struct iso_args))))
204 if ((mp->mnt_flag & MNT_RDONLY) == 0)
208 * If updating, check whether changing from read-only to
209 * read/write; if there is no device name, that's all we do.
211 if (mp->mnt_flag & MNT_UPDATE) {
212 imp = VFSTOISOFS(mp);
214 return (vfs_export(mp, &imp->im_export, &args.export));
217 * Not an update, or updating the name: look up the name
218 * and verify that it refers to a sensible block device.
221 error = nlookup_init(&nd, args.fspec, UIO_USERSPACE, NLC_FOLLOW);
223 error = nlookup(&nd);
225 error = cache_vref(&nd.nl_nch, nd.nl_cred, &devvp);
230 if (!vn_isdisk(devvp, &error)) {
236 * Verify that user has necessary permissions on the device,
237 * or has superuser abilities
240 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
241 error = VOP_EACCESS(devvp, accessmode, cred);
243 error = priv_check_cred(cred, PRIV_ROOT, 0);
250 if ((mp->mnt_flag & MNT_UPDATE) == 0) {
251 error = iso_mountfs(devvp, mp, &args);
253 if (devvp != imp->im_devvp)
254 error = EINVAL; /* needs translation */
262 imp = VFSTOISOFS(mp);
263 copyinstr(args.fspec, mp->mnt_stat.f_mntfromname, MNAMELEN - 1,
265 bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
266 cd9660_statfs(mp, &mp->mnt_stat, cred);
271 * Common code for mount and mountroot
274 iso_mountfs(struct vnode *devvp, struct mount *mp, struct iso_args *argp)
276 struct iso_mnt *isomp = NULL;
277 struct buf *bp = NULL;
278 struct buf *pribp = NULL, *supbp = NULL;
286 struct iso_volume_descriptor *vdp = NULL;
287 struct iso_primary_descriptor *pri = NULL;
288 struct iso_sierra_primary_descriptor *pri_sierra = NULL;
289 struct iso_supplementary_descriptor *sup = NULL;
290 struct iso_directory_record *rootp;
291 int logical_block_size;
292 char cs_local[ICONV_CSNMAXLEN];
293 char cs_disk[ICONV_CSNMAXLEN];
295 if (!(mp->mnt_flag & MNT_RDONLY))
299 * Disallow multiple mounts of the same device.
300 * Disallow mounting of a device that is currently in use
301 * Flush out any old buffers remaining from a previous use.
303 if ((error = vfs_mountedon(devvp)))
305 if (vcount(devvp) > 0)
307 if ((error = vinvalbuf(devvp, V_SAVE, 0, 0)))
310 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
311 error = VOP_OPEN(devvp, FREAD, FSCRED, NULL);
316 if (dev->si_iosize_max != 0)
317 mp->mnt_iosize_max = dev->si_iosize_max;
318 if (mp->mnt_iosize_max > MAXPHYS)
319 mp->mnt_iosize_max = MAXPHYS;
323 /* This is the "logical sector size". The standard says this
324 * should be 2048 or the physical sector size on the device,
325 * whichever is greater. For now, we'll just use a constant.
327 iso_bsize = ISO_DEFAULT_BLOCK_SIZE;
330 for (iso_blknum = 16 + argp->ssector;
331 iso_blknum < 100 + argp->ssector;
333 if ((error = bread(devvp, (off_t)iso_blknum * iso_bsize,
334 iso_bsize, &bp)) != 0)
337 vdp = (struct iso_volume_descriptor *)bp->b_data;
338 if (bcmp (vdp->id, ISO_STANDARD_ID, sizeof vdp->id) != 0) {
339 if (bcmp (vdp->id_sierra, ISO_SIERRA_ID,
340 sizeof vdp->id) != 0) {
346 switch (isonum_711 (high_sierra? vdp->type_sierra: vdp->type)){
351 pri = (struct iso_primary_descriptor *)vdp;
353 (struct iso_sierra_primary_descriptor *)vdp;
357 case ISO_VD_SUPPLEMENTARY:
361 sup = (struct iso_supplementary_descriptor *)vdp;
363 if (!(argp->flags & ISOFSMNT_NOJOLIET)) {
364 if (bcmp(sup->escape, "%/@", 3) == 0)
366 if (bcmp(sup->escape, "%/C", 3) == 0)
368 if (bcmp(sup->escape, "%/E", 3) == 0)
371 if ((isonum_711 (sup->flags) & 1) &&
372 (argp->flags & ISOFSMNT_BROKENJOLIET) == 0)
401 isonum_723 (high_sierra?
402 pri_sierra->logical_block_size:
403 pri->logical_block_size);
405 if (logical_block_size < DEV_BSIZE || logical_block_size > MAXBSIZE
406 || (logical_block_size & (logical_block_size - 1)) != 0) {
411 rootp = (struct iso_directory_record *)
413 pri_sierra->root_directory_record:
414 pri->root_directory_record);
416 isomp = kmalloc(sizeof *isomp, M_ISOFSMNT, M_WAITOK | M_ZERO);
417 isomp->logical_block_size = logical_block_size;
418 isomp->volume_space_size =
419 isonum_733 (high_sierra?
420 pri_sierra->volume_space_size:
421 pri->volume_space_size);
422 isomp->joliet_level = 0;
424 * Since an ISO9660 multi-session CD can also access previous
425 * sessions, we have to include them into the space consider-
426 * ations. This doesn't yield a very accurate number since
427 * parts of the old sessions might be inaccessible now, but we
428 * can't do much better. This is also important for the NFS
429 * filehandle validation.
431 isomp->volume_space_size += argp->ssector;
432 bcopy (rootp, isomp->root, sizeof isomp->root);
433 isomp->root_extent = isonum_733 (rootp->extent);
434 isomp->root_size = isonum_733 (rootp->size);
436 isomp->im_bmask = logical_block_size - 1;
437 isomp->im_bshift = ffs(logical_block_size) - 1;
439 pribp->b_flags |= B_AGE;
443 mp->mnt_data = (qaddr_t)isomp;
444 mp->mnt_stat.f_fsid.val[0] = dev2udev(dev);
445 mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
446 mp->mnt_maxsymlinklen = 0;
447 mp->mnt_flag |= MNT_LOCAL;
448 isomp->im_mountp = mp;
450 isomp->im_devvp = devvp;
452 dev->si_mountpoint = mp;
454 /* Check the Rock Ridge Extention support */
455 if (!(argp->flags & ISOFSMNT_NORRIP)) {
456 if ((error = bread(isomp->im_devvp,
457 lblktooff(isomp, isomp->root_extent + isonum_711(rootp->ext_attr_length)),
458 isomp->logical_block_size, &bp)) != 0)
461 rootp = (struct iso_directory_record *)bp->b_data;
463 if ((isomp->rr_skip = cd9660_rrip_offset(rootp,isomp)) < 0) {
464 argp->flags |= ISOFSMNT_NORRIP;
466 argp->flags &= ~ISOFSMNT_GENS;
470 * The contents are valid,
471 * but they will get reread as part of another vnode, so...
473 bp->b_flags |= B_AGE;
477 isomp->im_flags = argp->flags & (ISOFSMNT_NORRIP | ISOFSMNT_GENS |
478 ISOFSMNT_EXTATT | ISOFSMNT_NOJOLIET |
480 if (isomp->im_flags & ISOFSMNT_KICONV && cd9660_iconv) {
481 bcopy(argp->cs_local, cs_local, sizeof(cs_local));
482 bcopy(argp->cs_disk, cs_disk, sizeof(cs_disk));
483 cd9660_iconv->open(cs_local, cs_disk, &isomp->im_d2l);
484 cd9660_iconv->open(cs_disk, cs_local, &isomp->im_l2d);
486 isomp->im_d2l = NULL;
487 isomp->im_l2d = NULL;
491 /* this effectively ignores all the mount flags */
492 log(LOG_INFO, "cd9660: High Sierra Format\n");
493 isomp->iso_ftype = ISO_FTYPE_HIGH_SIERRA;
495 switch (isomp->im_flags&(ISOFSMNT_NORRIP|ISOFSMNT_GENS)) {
497 isomp->iso_ftype = ISO_FTYPE_DEFAULT;
499 case ISOFSMNT_GENS|ISOFSMNT_NORRIP:
500 isomp->iso_ftype = ISO_FTYPE_9660;
503 log(LOG_INFO, "cd9660: RockRidge Extension\n");
504 isomp->iso_ftype = ISO_FTYPE_RRIP;
509 /* Decide whether to use the Joliet descriptor */
511 if (isomp->iso_ftype != ISO_FTYPE_RRIP && joliet_level) {
512 log(LOG_INFO, "cd9660: Joliet Extension (Level %d)\n", joliet_level);
513 rootp = (struct iso_directory_record *)
514 sup->root_directory_record;
515 bcopy (rootp, isomp->root, sizeof isomp->root);
516 isomp->root_extent = isonum_733 (rootp->extent);
517 isomp->root_size = isonum_733 (rootp->size);
518 isomp->joliet_level = joliet_level;
519 supbp->b_flags |= B_AGE;
527 vfs_add_vnodeops(mp, &cd9660_vnode_vops, &mp->mnt_vn_norm_ops);
528 vfs_add_vnodeops(mp, &cd9660_spec_vops, &mp->mnt_vn_spec_ops);
529 vfs_add_vnodeops(mp, &cd9660_fifo_vops, &mp->mnt_vn_fifo_ops);
533 dev->si_mountpoint = NULL;
541 vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
542 VOP_CLOSE(devvp, FREAD, NULL);
546 kfree((caddr_t)isomp, M_ISOFSMNT);
547 mp->mnt_data = (qaddr_t)0;
553 * unmount system call
556 cd9660_unmount(struct mount *mp, int mntflags)
558 struct iso_mnt *isomp;
559 int error, flags = 0;
561 if (mntflags & MNT_FORCE)
568 if ((error = vflush(mp, 0, flags)))
571 isomp = VFSTOISOFS(mp);
573 if (isomp->im_flags & ISOFSMNT_KICONV && cd9660_iconv) {
575 cd9660_iconv->close(isomp->im_d2l);
577 cd9660_iconv->close(isomp->im_l2d);
580 isomp->im_devvp->v_rdev->si_mountpoint = NULL;
581 vn_lock(isomp->im_devvp, LK_EXCLUSIVE | LK_RETRY);
582 error = VOP_CLOSE(isomp->im_devvp, FREAD, NULL);
583 vn_unlock(isomp->im_devvp);
584 vrele(isomp->im_devvp);
585 kfree((caddr_t)isomp, M_ISOFSMNT);
586 mp->mnt_data = (qaddr_t)0;
587 mp->mnt_flag &= ~MNT_LOCAL;
592 * Return root of a filesystem
595 cd9660_root(struct mount *mp, struct vnode **vpp)
597 struct iso_mnt *imp = VFSTOISOFS(mp);
598 struct iso_directory_record *dp =
599 (struct iso_directory_record *)imp->root;
600 ino_t ino = isodirino(dp, imp);
603 * With RRIP we must use the `.' entry of the root directory.
604 * Simply tell vget, that it's a relocated directory.
606 return (cd9660_vget_internal(mp, ino, vpp,
607 imp->iso_ftype == ISO_FTYPE_RRIP, dp));
611 * Get file system statistics.
614 cd9660_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred)
616 struct iso_mnt *isomp;
618 isomp = VFSTOISOFS(mp);
620 sbp->f_bsize = isomp->logical_block_size;
621 sbp->f_iosize = sbp->f_bsize; /* XXX */
622 sbp->f_blocks = isomp->volume_space_size;
623 sbp->f_bfree = 0; /* total free blocks */
624 sbp->f_bavail = 0; /* blocks free for non superuser */
625 sbp->f_files = 0; /* total files */
626 sbp->f_ffree = 0; /* free file nodes */
627 if (sbp != &mp->mnt_stat) {
628 sbp->f_type = mp->mnt_vfc->vfc_typenum;
629 bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
635 * File handle to vnode
637 * Have to be really careful about stale file handles:
638 * - check that the inode number is in range
639 * - call iget() to get the locked inode
640 * - check for an unallocated inode (i_mode == 0)
641 * - check that the generation number matches
653 cd9660_fhtovp(struct mount *mp, struct vnode *rootvp,
654 struct fid *fhp, struct vnode **vpp)
656 struct ifid *ifhp = (struct ifid *)fhp;
662 kprintf("fhtovp: ino %d, start %ld\n",
663 ifhp->ifid_ino, ifhp->ifid_start);
666 if ((error = VFS_VGET(mp, NULL, ifhp->ifid_ino, &nvp)) != 0) {
671 if (ip->inode.iso_mode == 0) {
681 cd9660_checkexp(struct mount *mp, struct sockaddr *nam, int *exflagsp,
682 struct ucred **credanonp)
687 imp = VFSTOISOFS(mp);
690 * Get the export permission structure for this <mp, client> tuple.
692 np = vfs_export_lookup(mp, &imp->im_export, nam);
696 *exflagsp = np->netc_exflags;
697 *credanonp = &np->netc_anon;
702 cd9660_vget(struct mount *mp, struct vnode *dvp, ino_t ino, struct vnode **vpp)
707 * It would be nice if we didn't always set the `relocated' flag
708 * and force the extra read, but I don't want to think about fixing
711 return (cd9660_vget_internal(mp, ino, vpp,
713 VFSTOISOFS(mp)->iso_ftype == ISO_FTYPE_RRIP,
721 cd9660_vget_internal(struct mount *mp, ino_t ino, struct vnode **vpp,
722 int relocated, struct iso_directory_record *isodir)
731 imp = VFSTOISOFS(mp);
734 if ((*vpp = cd9660_ihashget(dev, ino)) != NULLVP)
737 /* Allocate a new vnode/iso_node. */
738 error = getnewvnode(VT_ISOFS, mp, &vp, 0, 0);
743 ip = kmalloc(sizeof(struct iso_node), M_ISOFSNODE, M_WAITOK | M_ZERO);
749 * Insert it into the inode hash table and check for a collision.
750 * If a collision occurs, throw away the vnode and try again.
752 if (cd9660_ihashins(ip) != 0) {
753 kprintf("debug: cd9660 ihashins collision, retrying\n");
755 kfree(ip, M_ISOFSNODE);
760 if (isodir == NULL) {
763 lbn = lblkno(imp, ino);
764 if (lbn >= imp->volume_space_size) {
766 kprintf("fhtovp: lbn exceed volume space %d\n", lbn);
770 off = blkoff(imp, ino);
771 if (off + ISO_DIRECTORY_RECORD_SIZE > imp->logical_block_size) {
773 kprintf("fhtovp: crosses block boundary %d\n",
774 off + ISO_DIRECTORY_RECORD_SIZE);
778 error = bread(imp->im_devvp,
780 imp->logical_block_size, &bp);
784 kprintf("fhtovp: bread error %d\n",error);
787 isodir = (struct iso_directory_record *)(bp->b_data + off);
789 if (off + isonum_711(isodir->length) >
790 imp->logical_block_size) {
794 kprintf("fhtovp: directory crosses block boundary %d[off=%d/len=%d]\n",
795 off +isonum_711(isodir->length), off,
796 isonum_711(isodir->length));
801 if (isonum_733(isodir->extent) +
802 isonum_711(isodir->ext_attr_length) != ifhp->ifid_start) {
805 kprintf("fhtovp: file start miss %d vs %d\n",
806 isonum_733(isodir->extent) + isonum_711(isodir->ext_attr_length),
815 ip->i_devvp = imp->im_devvp;
820 * On relocated directories we must
821 * read the `.' entry out of a dir.
823 ip->iso_start = ino >> imp->im_bshift;
826 if ((error = cd9660_devblkatoff(vp, (off_t)0, NULL, &bp)) != 0) {
830 isodir = (struct iso_directory_record *)bp->b_data;
833 ip->iso_extent = isonum_733(isodir->extent);
834 ip->i_size = isonum_733(isodir->size);
835 ip->iso_start = isonum_711(isodir->ext_attr_length) + ip->iso_extent;
838 * Setup time stamp, attribute
841 switch (imp->iso_ftype) {
842 default: /* ISO_FTYPE_9660 */
846 if ((imp->im_flags & ISOFSMNT_EXTATT)
847 && (off = isonum_711(isodir->ext_attr_length)))
848 cd9660_devblkatoff(vp, (off_t)-(off << imp->im_bshift), NULL,
852 cd9660_defattr(isodir, ip, bp2, ISO_FTYPE_9660);
853 cd9660_deftstamp(isodir, ip, bp2, ISO_FTYPE_9660);
859 cd9660_rrip_analyze(isodir, ip, imp);
867 * Initialize the associated vnode
869 vp->v_type = IFTOVT(ip->inode.iso_mode);
871 switch (vp->v_type) {
873 vp->v_ops = &mp->mnt_vn_fifo_ops;
877 vp->v_ops = &mp->mnt_vn_spec_ops;
878 addaliasu(vp, umajor(ip->inode.iso_rdev),
879 uminor(ip->inode.iso_rdev));
883 vinitvmio(vp, ip->i_size, PAGE_SIZE, -1);
889 if (ip->iso_extent == imp->root_extent)
890 vsetflags(vp, VROOT);
893 * Return the locked and refd vp
900 * Vnode pointer to File handle
904 cd9660_vptofh(struct vnode *vp, struct fid *fhp)
906 struct iso_node *ip = VTOI(vp);
909 ifhp = (struct ifid *)fhp;
910 ifhp->ifid_len = sizeof(struct ifid);
912 ifhp->ifid_ino = ip->i_number;
913 ifhp->ifid_start = ip->iso_start;
916 kprintf("vptofh: ino %d, start %ld\n",
917 ifhp->ifid_ino,ifhp->ifid_start);