Commit | Line | Data |
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5fc285c5 KM |
1 | /*- |
2 | * Copyright (c) 1994 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
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). | |
9 | * | |
10 | * %sccs.include.redist.c% | |
11 | * | |
12 | * @(#)cd9660_vfsops.c 8.1 (Berkeley) %G% | |
13 | */ | |
14 | ||
15 | #include <sys/param.h> | |
16 | #include <sys/systm.h> | |
17 | #include <sys/namei.h> | |
18 | #include <sys/proc.h> | |
19 | #include <sys/kernel.h> | |
20 | #include <sys/vnode.h> | |
21 | #include <miscfs/specfs/specdev.h> | |
22 | #include <sys/mount.h> | |
23 | #include <sys/buf.h> | |
24 | #include <sys/file.h> | |
25 | #include <sys/dkbad.h> | |
26 | #include <sys/disklabel.h> | |
27 | #include <sys/ioctl.h> | |
28 | #include <sys/errno.h> | |
29 | #include <sys/malloc.h> | |
30 | ||
31 | #include <isofs/cd9660/iso.h> | |
32 | #include <isofs/cd9660/isofs_node.h> | |
33 | ||
34 | extern int enodev (); | |
35 | ||
36 | struct vfsops isofs_vfsops = { | |
37 | isofs_mount, | |
38 | isofs_start, | |
39 | isofs_unmount, | |
40 | isofs_root, | |
41 | isofs_quotactl, | |
42 | isofs_statfs, | |
43 | isofs_sync, | |
44 | isofs_vget, | |
45 | isofs_fhtovp, | |
46 | isofs_vptofh, | |
47 | isofs_init, | |
48 | }; | |
49 | ||
50 | /* | |
51 | * Called by vfs_mountroot when iso is going to be mounted as root. | |
52 | * | |
53 | * Name is updated by mount(8) after booting. | |
54 | */ | |
55 | #define ROOTNAME "root_device" | |
56 | ||
57 | static iso_mountfs(); | |
58 | ||
59 | isofs_mountroot() | |
60 | { | |
61 | register struct mount *mp; | |
62 | extern struct vnode *rootvp; | |
63 | struct proc *p = curproc; /* XXX */ | |
64 | struct iso_mnt *imp; | |
65 | register struct fs *fs; | |
66 | u_int size; | |
67 | int error; | |
68 | struct iso_args args; | |
69 | ||
70 | /* | |
71 | * Get vnodes for swapdev and rootdev. | |
72 | */ | |
73 | if (bdevvp(swapdev, &swapdev_vp) || bdevvp(rootdev, &rootvp)) | |
74 | panic("isofs_mountroot: can't setup bdevvp's"); | |
75 | ||
76 | mp = malloc((u_long)sizeof(struct mount), M_MOUNT, M_WAITOK); | |
77 | bzero((char *)mp, (u_long)sizeof(struct mount)); | |
78 | mp->mnt_op = &isofs_vfsops; | |
79 | mp->mnt_flag = MNT_RDONLY; | |
80 | args.flags = ISOFSMNT_ROOT; | |
81 | if (error = iso_mountfs(rootvp, mp, p, &args)) { | |
82 | free(mp, M_MOUNT); | |
83 | return (error); | |
84 | } | |
85 | if (error = vfs_lock(mp)) { | |
86 | (void)isofs_unmount(mp, 0, p); | |
87 | free(mp, M_MOUNT); | |
88 | return (error); | |
89 | } | |
90 | TAILQ_INSERT_TAIL(&mountlist, mp, mnt_list); | |
91 | mp->mnt_flag |= MNT_ROOTFS; | |
92 | mp->mnt_vnodecovered = NULLVP; | |
93 | imp = VFSTOISOFS(mp); | |
94 | bzero(imp->im_fsmnt, sizeof(imp->im_fsmnt)); | |
95 | imp->im_fsmnt[0] = '/'; | |
96 | bcopy((caddr_t)imp->im_fsmnt, (caddr_t)mp->mnt_stat.f_mntonname, | |
97 | MNAMELEN); | |
98 | (void) copystr(ROOTNAME, mp->mnt_stat.f_mntfromname, MNAMELEN - 1, | |
99 | &size); | |
100 | bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); | |
101 | (void) isofs_statfs(mp, &mp->mnt_stat, p); | |
102 | vfs_unlock(mp); | |
103 | return (0); | |
104 | } | |
105 | ||
106 | /* | |
107 | * Flag to allow forcible unmounting. | |
108 | */ | |
109 | int iso_doforce = 1; | |
110 | ||
111 | /* | |
112 | * VFS Operations. | |
113 | * | |
114 | * mount system call | |
115 | */ | |
116 | isofs_mount(mp, path, data, ndp, p) | |
117 | register struct mount *mp; | |
118 | char *path; | |
119 | caddr_t data; | |
120 | struct nameidata *ndp; | |
121 | struct proc *p; | |
122 | { | |
123 | struct vnode *devvp; | |
124 | struct iso_args args; | |
125 | u_int size; | |
126 | int error; | |
127 | struct iso_mnt *imp; | |
128 | ||
129 | if (error = copyin(data, (caddr_t)&args, sizeof (struct iso_args))) | |
130 | return (error); | |
131 | ||
132 | if ((mp->mnt_flag & MNT_RDONLY) == 0) | |
133 | return (EROFS); | |
134 | ||
135 | /* | |
136 | * If updating, check whether changing from read-only to | |
137 | * read/write; if there is no device name, that's all we do. | |
138 | */ | |
139 | if (mp->mnt_flag & MNT_UPDATE) { | |
140 | imp = VFSTOISOFS(mp); | |
141 | if (args.fspec == 0) | |
142 | return (vfs_export(mp, &imp->im_export, &args.export)); | |
143 | } | |
144 | /* | |
145 | * Not an update, or updating the name: look up the name | |
146 | * and verify that it refers to a sensible block device. | |
147 | */ | |
148 | NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p); | |
149 | if (error = namei(ndp)) | |
150 | return (error); | |
151 | devvp = ndp->ni_vp; | |
152 | ||
153 | if (devvp->v_type != VBLK) { | |
154 | vrele(devvp); | |
155 | return ENOTBLK; | |
156 | } | |
157 | if (major(devvp->v_rdev) >= nblkdev) { | |
158 | vrele(devvp); | |
159 | return ENXIO; | |
160 | } | |
161 | if ((mp->mnt_flag & MNT_UPDATE) == 0) | |
162 | error = iso_mountfs(devvp, mp, p, &args); | |
163 | else { | |
164 | if (devvp != imp->im_devvp) | |
165 | error = EINVAL; /* needs translation */ | |
166 | else | |
167 | vrele(devvp); | |
168 | } | |
169 | if (error) { | |
170 | vrele(devvp); | |
171 | return error; | |
172 | } | |
173 | imp = VFSTOISOFS(mp); | |
174 | (void) copyinstr(path, imp->im_fsmnt, sizeof(imp->im_fsmnt)-1, &size); | |
175 | bzero(imp->im_fsmnt + size, sizeof(imp->im_fsmnt) - size); | |
176 | bcopy((caddr_t)imp->im_fsmnt, (caddr_t)mp->mnt_stat.f_mntonname, | |
177 | MNAMELEN); | |
178 | (void) copyinstr(args.fspec, mp->mnt_stat.f_mntfromname, MNAMELEN - 1, | |
179 | &size); | |
180 | bzero(mp->mnt_stat.f_mntfromname + size, MNAMELEN - size); | |
181 | (void) isofs_statfs(mp, &mp->mnt_stat, p); | |
182 | return 0; | |
183 | } | |
184 | ||
185 | /* | |
186 | * Common code for mount and mountroot | |
187 | */ | |
188 | static iso_mountfs(devvp, mp, p, argp) | |
189 | register struct vnode *devvp; | |
190 | struct mount *mp; | |
191 | struct proc *p; | |
192 | struct iso_args *argp; | |
193 | { | |
194 | register struct iso_mnt *isomp = (struct iso_mnt *)0; | |
195 | struct buf *bp = NULL; | |
196 | dev_t dev = devvp->v_rdev; | |
197 | caddr_t base, space; | |
198 | int havepart = 0, blks; | |
199 | int error = EINVAL, i, size; | |
200 | int needclose = 0; | |
201 | int ronly = (mp->mnt_flag & MNT_RDONLY) != 0; | |
202 | extern struct vnode *rootvp; | |
203 | int j; | |
204 | int iso_bsize; | |
205 | int iso_blknum; | |
206 | struct iso_volume_descriptor *vdp; | |
207 | struct iso_primary_descriptor *pri; | |
208 | struct iso_directory_record *rootp; | |
209 | int logical_block_size; | |
210 | ||
211 | if (!ronly) | |
212 | return EROFS; | |
213 | ||
214 | /* | |
215 | * Disallow multiple mounts of the same device. | |
216 | * Disallow mounting of a device that is currently in use | |
217 | * (except for root, which might share swap device for miniroot). | |
218 | * Flush out any old buffers remaining from a previous use. | |
219 | */ | |
220 | if (error = vfs_mountedon(devvp)) | |
221 | return error; | |
222 | if (vcount(devvp) > 1 && devvp != rootvp) | |
223 | return EBUSY; | |
224 | if (error = vinvalbuf(devvp, V_SAVE, p->p_ucred, p, 0, 0)) | |
225 | return (error); | |
226 | ||
227 | if (error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, p)) | |
228 | return error; | |
229 | needclose = 1; | |
230 | ||
231 | /* This is the "logical sector size". The standard says this | |
232 | * should be 2048 or the physical sector size on the device, | |
233 | * whichever is greater. For now, we'll just use a constant. | |
234 | */ | |
235 | iso_bsize = ISO_DEFAULT_BLOCK_SIZE; | |
236 | ||
237 | for (iso_blknum = 16; iso_blknum < 100; iso_blknum++) { | |
238 | if (error = bread (devvp, btodb(iso_blknum * iso_bsize), | |
239 | iso_bsize, NOCRED, &bp)) | |
240 | goto out; | |
241 | ||
242 | vdp = (struct iso_volume_descriptor *)bp->b_un.b_addr; | |
243 | if (bcmp (vdp->id, ISO_STANDARD_ID, sizeof vdp->id) != 0) { | |
244 | error = EINVAL; | |
245 | goto out; | |
246 | } | |
247 | ||
248 | if (isonum_711 (vdp->type) == ISO_VD_END) { | |
249 | error = EINVAL; | |
250 | goto out; | |
251 | } | |
252 | ||
253 | if (isonum_711 (vdp->type) == ISO_VD_PRIMARY) | |
254 | break; | |
255 | brelse(bp); | |
256 | } | |
257 | ||
258 | if (isonum_711 (vdp->type) != ISO_VD_PRIMARY) { | |
259 | error = EINVAL; | |
260 | goto out; | |
261 | } | |
262 | ||
263 | pri = (struct iso_primary_descriptor *)vdp; | |
264 | ||
265 | logical_block_size = isonum_723 (pri->logical_block_size); | |
266 | ||
267 | if (logical_block_size < DEV_BSIZE || logical_block_size > MAXBSIZE | |
268 | || (logical_block_size & (logical_block_size - 1)) != 0) { | |
269 | error = EINVAL; | |
270 | goto out; | |
271 | } | |
272 | ||
273 | rootp = (struct iso_directory_record *)pri->root_directory_record; | |
274 | ||
275 | isomp = (struct iso_mnt *)malloc(sizeof *isomp,M_ISOFSMNT,M_WAITOK); | |
276 | isomp->logical_block_size = logical_block_size; | |
277 | isomp->volume_space_size = isonum_733 (pri->volume_space_size); | |
278 | bcopy (rootp, isomp->root, sizeof isomp->root); | |
279 | isomp->root_extent = isonum_733 (rootp->extent); | |
280 | isomp->root_size = isonum_733 (rootp->size); | |
281 | ||
282 | isomp->im_bmask = logical_block_size - 1; | |
283 | isomp->im_bshift = 0; | |
284 | while ((1 << isomp->im_bshift) < isomp->logical_block_size) | |
285 | isomp->im_bshift++; | |
286 | ||
287 | bp->b_flags |= B_AGE; | |
288 | brelse(bp); | |
289 | bp = NULL; | |
290 | ||
291 | mp->mnt_data = (qaddr_t)isomp; | |
292 | mp->mnt_stat.f_fsid.val[0] = (long)dev; | |
293 | mp->mnt_stat.f_fsid.val[1] = MOUNT_ISOFS; | |
294 | mp->mnt_maxsymlinklen = 0; | |
295 | mp->mnt_flag |= MNT_LOCAL; | |
296 | isomp->im_mountp = mp; | |
297 | isomp->im_dev = dev; | |
298 | isomp->im_devvp = devvp; | |
299 | ||
300 | devvp->v_specflags |= SI_MOUNTEDON; | |
301 | ||
302 | /* Check the Rock Ridge Extention support */ | |
303 | if (!(argp->flags & ISOFSMNT_NORRIP)) { | |
304 | if (error = bread (isomp->im_devvp, | |
305 | (isomp->root_extent + isonum_711(rootp->ext_attr_length)) | |
306 | * isomp->logical_block_size / DEV_BSIZE, | |
307 | isomp->logical_block_size,NOCRED,&bp)) | |
308 | goto out; | |
309 | ||
310 | rootp = (struct iso_directory_record *)bp->b_un.b_addr; | |
311 | ||
312 | if ((isomp->rr_skip = isofs_rrip_offset(rootp,isomp)) < 0) { | |
313 | argp->flags |= ISOFSMNT_NORRIP; | |
314 | } else { | |
315 | argp->flags &= ~ISOFSMNT_GENS; | |
316 | } | |
317 | ||
318 | /* | |
319 | * The contents are valid, | |
320 | * but they will get reread as part of another vnode, so... | |
321 | */ | |
322 | bp->b_flags |= B_AGE; | |
323 | brelse(bp); | |
324 | bp = NULL; | |
325 | } | |
326 | isomp->im_flags = argp->flags&(ISOFSMNT_NORRIP|ISOFSMNT_GENS|ISOFSMNT_EXTATT); | |
327 | switch (isomp->im_flags&(ISOFSMNT_NORRIP|ISOFSMNT_GENS)) { | |
328 | default: | |
329 | isomp->iso_ftype = ISO_FTYPE_DEFAULT; | |
330 | break; | |
331 | case ISOFSMNT_GENS|ISOFSMNT_NORRIP: | |
332 | isomp->iso_ftype = ISO_FTYPE_9660; | |
333 | break; | |
334 | case 0: | |
335 | isomp->iso_ftype = ISO_FTYPE_RRIP; | |
336 | break; | |
337 | } | |
338 | ||
339 | return 0; | |
340 | out: | |
341 | if (bp) | |
342 | brelse(bp); | |
343 | if (needclose) | |
344 | (void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, NOCRED, p); | |
345 | if (isomp) { | |
346 | free((caddr_t)isomp, M_ISOFSMNT); | |
347 | mp->mnt_data = (qaddr_t)0; | |
348 | } | |
349 | return error; | |
350 | } | |
351 | ||
352 | /* | |
353 | * Make a filesystem operational. | |
354 | * Nothing to do at the moment. | |
355 | */ | |
356 | /* ARGSUSED */ | |
357 | isofs_start(mp, flags, p) | |
358 | struct mount *mp; | |
359 | int flags; | |
360 | struct proc *p; | |
361 | { | |
362 | return 0; | |
363 | } | |
364 | ||
365 | /* | |
366 | * unmount system call | |
367 | */ | |
368 | int | |
369 | isofs_unmount(mp, mntflags, p) | |
370 | struct mount *mp; | |
371 | int mntflags; | |
372 | struct proc *p; | |
373 | { | |
374 | register struct iso_mnt *isomp; | |
375 | int i, error, ronly, flags = 0; | |
376 | ||
377 | if (mntflags & MNT_FORCE) { | |
378 | if (!iso_doforce || (mp->mnt_flag & MNT_ROOTFS)) | |
379 | return (EINVAL); | |
380 | flags |= FORCECLOSE; | |
381 | } | |
382 | #if 0 | |
383 | mntflushbuf(mp, 0); | |
384 | if (mntinvalbuf(mp)) | |
385 | return EBUSY; | |
386 | #endif | |
387 | if (error = vflush(mp, NULLVP, flags)) | |
388 | return (error); | |
389 | ||
390 | isomp = VFSTOISOFS(mp); | |
391 | ||
392 | #ifdef ISODEVMAP | |
393 | if (isomp->iso_ftype == ISO_FTYPE_RRIP) | |
394 | iso_dunmap(isomp->im_dev); | |
395 | #endif | |
396 | ||
397 | isomp->im_devvp->v_specflags &= ~SI_MOUNTEDON; | |
398 | error = VOP_CLOSE(isomp->im_devvp, FREAD, NOCRED, p); | |
399 | vrele(isomp->im_devvp); | |
400 | free((caddr_t)isomp, M_ISOFSMNT); | |
401 | mp->mnt_data = (qaddr_t)0; | |
402 | mp->mnt_flag &= ~MNT_LOCAL; | |
403 | return (error); | |
404 | } | |
405 | ||
406 | /* | |
407 | * Return root of a filesystem | |
408 | */ | |
409 | isofs_root(mp, vpp) | |
410 | struct mount *mp; | |
411 | struct vnode **vpp; | |
412 | { | |
413 | register struct iso_node *ip; | |
414 | struct iso_node tip, *nip; | |
415 | struct vnode tvp; | |
416 | int error; | |
417 | struct iso_mnt *imp = VFSTOISOFS (mp); | |
418 | struct iso_directory_record *dp; | |
419 | ||
420 | tvp.v_mount = mp; | |
421 | tvp.v_data = &tip; | |
422 | ip = VTOI(&tvp); | |
423 | ip->i_vnode = &tvp; | |
424 | ip->i_dev = imp->im_dev; | |
425 | ip->i_diroff = 0; | |
426 | dp = (struct iso_directory_record *)imp->root; | |
427 | isodirino(&ip->i_number,dp,imp); | |
428 | ||
429 | /* | |
430 | * With RRIP we must use the `.' entry of the root directory. | |
431 | * Simply tell iget, that it's a relocated directory. | |
432 | */ | |
433 | error = iso_iget(ip,ip->i_number, | |
434 | imp->iso_ftype == ISO_FTYPE_RRIP, | |
435 | &nip,dp); | |
436 | if (error) | |
437 | return error; | |
438 | *vpp = ITOV(nip); | |
439 | return 0; | |
440 | } | |
441 | ||
442 | /* | |
443 | * Do operations associated with quotas, not supported | |
444 | */ | |
445 | /* ARGSUSED */ | |
446 | int | |
447 | isofs_quotactl(mp, cmd, uid, arg, p) | |
448 | struct mount *mp; | |
449 | int cmd; | |
450 | uid_t uid; | |
451 | caddr_t arg; | |
452 | struct proc *p; | |
453 | { | |
454 | ||
455 | return (EOPNOTSUPP); | |
456 | } | |
457 | ||
458 | /* | |
459 | * Get file system statistics. | |
460 | */ | |
461 | isofs_statfs(mp, sbp, p) | |
462 | struct mount *mp; | |
463 | register struct statfs *sbp; | |
464 | struct proc *p; | |
465 | { | |
466 | register struct iso_mnt *isomp; | |
467 | register struct fs *fs; | |
468 | ||
469 | isomp = VFSTOISOFS(mp); | |
470 | ||
471 | sbp->f_type = MOUNT_ISOFS; | |
472 | sbp->f_bsize = isomp->logical_block_size; | |
473 | sbp->f_iosize = sbp->f_bsize; /* XXX */ | |
474 | sbp->f_blocks = isomp->volume_space_size; | |
475 | sbp->f_bfree = 0; /* total free blocks */ | |
476 | sbp->f_bavail = 0; /* blocks free for non superuser */ | |
477 | sbp->f_files = 0; /* total files */ | |
478 | sbp->f_ffree = 0; /* free file nodes */ | |
479 | if (sbp != &mp->mnt_stat) { | |
480 | bcopy((caddr_t)mp->mnt_stat.f_mntonname, | |
481 | (caddr_t)&sbp->f_mntonname[0], MNAMELEN); | |
482 | bcopy((caddr_t)mp->mnt_stat.f_mntfromname, | |
483 | (caddr_t)&sbp->f_mntfromname[0], MNAMELEN); | |
484 | } | |
485 | /* Use the first spare for flags: */ | |
486 | sbp->f_spare[0] = isomp->im_flags; | |
487 | return 0; | |
488 | } | |
489 | ||
490 | /* ARGSUSED */ | |
491 | int | |
492 | isofs_sync(mp, waitfor, cred, p) | |
493 | struct mount *mp; | |
494 | int waitfor; | |
495 | struct ucred *cred; | |
496 | struct proc *p; | |
497 | { | |
498 | return (0); | |
499 | } | |
500 | ||
501 | /* | |
502 | * Flat namespace lookup. | |
503 | * Currently unsupported. | |
504 | */ | |
505 | /* ARGSUSED */ | |
506 | int | |
507 | isofs_vget(mp, ino, vpp) | |
508 | struct mount *mp; | |
509 | ino_t ino; | |
510 | struct vnode **vpp; | |
511 | { | |
512 | ||
513 | return (EOPNOTSUPP); | |
514 | } | |
515 | ||
516 | /* | |
517 | * File handle to vnode | |
518 | * | |
519 | * Have to be really careful about stale file handles: | |
520 | * - check that the inode number is in range | |
521 | * - call iget() to get the locked inode | |
522 | * - check for an unallocated inode (i_mode == 0) | |
523 | * - check that the generation number matches | |
524 | */ | |
525 | ||
526 | struct ifid { | |
527 | ushort ifid_len; | |
528 | ushort ifid_pad; | |
529 | int ifid_ino; | |
530 | long ifid_start; | |
531 | }; | |
532 | ||
533 | /* ARGSUSED */ | |
534 | int | |
535 | isofs_fhtovp(mp, fhp, nam, vpp, exflagsp, credanonp) | |
536 | register struct mount *mp; | |
537 | struct fid *fhp; | |
538 | struct mbuf *nam; | |
539 | struct vnode **vpp; | |
540 | int *exflagsp; | |
541 | struct ucred **credanonp; | |
542 | { | |
543 | struct vnode tvp; | |
544 | int error; | |
545 | int lbn, off; | |
546 | struct ifid *ifhp; | |
547 | struct iso_mnt *imp; | |
548 | struct buf *bp; | |
549 | struct iso_directory_record *dirp; | |
550 | struct iso_node tip, *ip, *nip; | |
551 | struct netcred *np; | |
552 | ||
553 | imp = VFSTOISOFS (mp); | |
554 | ifhp = (struct ifid *)fhp; | |
555 | ||
556 | #ifdef ISOFS_DBG | |
557 | printf("fhtovp: ino %d, start %ld\n", | |
558 | ifhp->ifid_ino, ifhp->ifid_start); | |
559 | #endif | |
560 | ||
561 | np = vfs_export_lookup(mp, &imp->im_export, nam); | |
562 | if (np == NULL) | |
563 | return (EACCES); | |
564 | ||
565 | lbn = iso_lblkno(imp, ifhp->ifid_ino); | |
566 | if (lbn >= imp->volume_space_size) { | |
567 | printf("fhtovp: lbn exceed volume space %d\n", lbn); | |
568 | return (ESTALE); | |
569 | } | |
570 | ||
571 | off = iso_blkoff(imp, ifhp->ifid_ino); | |
572 | if (off + ISO_DIRECTORY_RECORD_SIZE > imp->logical_block_size) { | |
573 | printf("fhtovp: crosses block boundary %d\n", | |
574 | off + ISO_DIRECTORY_RECORD_SIZE); | |
575 | return (ESTALE); | |
576 | } | |
577 | ||
578 | error = bread(imp->im_devvp, btodb(lbn * imp->logical_block_size), | |
579 | imp->logical_block_size, NOCRED, &bp); | |
580 | if (error) { | |
581 | printf("fhtovp: bread error %d\n",error); | |
582 | brelse(bp); | |
583 | return (error); | |
584 | } | |
585 | ||
586 | dirp = (struct iso_directory_record *)(bp->b_un.b_addr + off); | |
587 | if (off + isonum_711(dirp->length) > imp->logical_block_size) { | |
588 | brelse(bp); | |
589 | printf("fhtovp: directory crosses block boundary %d[off=%d/len=%d]\n", | |
590 | off+isonum_711(dirp->length), off, | |
591 | isonum_711(dirp->length)); | |
592 | return (ESTALE); | |
593 | } | |
594 | ||
595 | if (isonum_733(dirp->extent) + isonum_711(dirp->ext_attr_length) != | |
596 | ifhp->ifid_start) { | |
597 | brelse(bp); | |
598 | printf("fhtovp: file start miss %d vs %d\n", | |
599 | isonum_733(dirp->extent)+isonum_711(dirp->ext_attr_length), | |
600 | ifhp->ifid_start); | |
601 | return (ESTALE); | |
602 | } | |
603 | brelse(bp); | |
604 | ||
605 | ip = &tip; | |
606 | tvp.v_mount = mp; | |
607 | tvp.v_data = ip; | |
608 | ip->i_vnode = &tvp; | |
609 | ip->i_dev = imp->im_dev; | |
610 | if (error = iso_iget(ip, ifhp->ifid_ino, 0, &nip, dirp)) { | |
611 | *vpp = NULLVP; | |
612 | printf("fhtovp: failed to get inode\n"); | |
613 | return (error); | |
614 | } | |
615 | ip = nip; | |
616 | /* | |
617 | * XXX need generation number? | |
618 | */ | |
619 | if (ip->inode.iso_mode == 0) { | |
620 | iso_iput(ip); | |
621 | *vpp = NULLVP; | |
622 | printf("fhtovp: inode mode == 0\n"); | |
623 | return (ESTALE); | |
624 | } | |
625 | *vpp = ITOV(ip); | |
626 | *exflagsp = np->netc_exflags; | |
627 | *credanonp = &np->netc_anon; | |
628 | return 0; | |
629 | } | |
630 | ||
631 | /* | |
632 | * Vnode pointer to File handle | |
633 | */ | |
634 | /* ARGSUSED */ | |
635 | isofs_vptofh(vp, fhp) | |
636 | struct vnode *vp; | |
637 | struct fid *fhp; | |
638 | { | |
639 | register struct iso_node *ip = VTOI(vp); | |
640 | register struct ifid *ifhp; | |
641 | register struct iso_mnt *mp = ip->i_mnt; | |
642 | ||
643 | ifhp = (struct ifid *)fhp; | |
644 | ifhp->ifid_len = sizeof(struct ifid); | |
645 | ||
646 | ifhp->ifid_ino = ip->i_number; | |
647 | ifhp->ifid_start = ip->iso_start; | |
648 | ||
649 | #ifdef ISOFS_DBG | |
650 | printf("vptofh: ino %d, start %ld\n", | |
651 | ifhp->ifid_ino,ifhp->ifid_start); | |
652 | #endif | |
653 | return 0; | |
654 | } |