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14#include <linux/init.h>
15#include <linux/module.h>
16
17#include <linux/slab.h>
18#include <linux/cred.h>
19#include <linux/nls.h>
20#include <linux/ctype.h>
21#include <linux/statfs.h>
22#include <linux/cdrom.h>
23#include <linux/parser.h>
24#include <linux/mpage.h>
25#include <linux/user_namespace.h>
26#include <linux/seq_file.h>
27
28#include "isofs.h"
29#include "zisofs.h"
30
31#define BEQUIET
32
33static int isofs_hashi(const struct dentry *parent, struct qstr *qstr);
34static int isofs_dentry_cmpi(const struct dentry *dentry,
35 unsigned int len, const char *str, const struct qstr *name);
36
37#ifdef CONFIG_JOLIET
38static int isofs_hashi_ms(const struct dentry *parent, struct qstr *qstr);
39static int isofs_hash_ms(const struct dentry *parent, struct qstr *qstr);
40static int isofs_dentry_cmpi_ms(const struct dentry *dentry,
41 unsigned int len, const char *str, const struct qstr *name);
42static int isofs_dentry_cmp_ms(const struct dentry *dentry,
43 unsigned int len, const char *str, const struct qstr *name);
44#endif
45
46static void isofs_put_super(struct super_block *sb)
47{
48 struct isofs_sb_info *sbi = ISOFS_SB(sb);
49
50#ifdef CONFIG_JOLIET
51 unload_nls(sbi->s_nls_iocharset);
52#endif
53
54 kfree(sbi);
55 sb->s_fs_info = NULL;
56 return;
57}
58
59static int isofs_read_inode(struct inode *, int relocated);
60static int isofs_statfs (struct dentry *, struct kstatfs *);
61static int isofs_show_options(struct seq_file *, struct dentry *);
62
63static struct kmem_cache *isofs_inode_cachep;
64
65static struct inode *isofs_alloc_inode(struct super_block *sb)
66{
67 struct iso_inode_info *ei;
68 ei = kmem_cache_alloc(isofs_inode_cachep, GFP_KERNEL);
69 if (!ei)
70 return NULL;
71 return &ei->vfs_inode;
72}
73
74static void isofs_i_callback(struct rcu_head *head)
75{
76 struct inode *inode = container_of(head, struct inode, i_rcu);
77 kmem_cache_free(isofs_inode_cachep, ISOFS_I(inode));
78}
79
80static void isofs_destroy_inode(struct inode *inode)
81{
82 call_rcu(&inode->i_rcu, isofs_i_callback);
83}
84
85static void init_once(void *foo)
86{
87 struct iso_inode_info *ei = foo;
88
89 inode_init_once(&ei->vfs_inode);
90}
91
92static int __init init_inodecache(void)
93{
94 isofs_inode_cachep = kmem_cache_create("isofs_inode_cache",
95 sizeof(struct iso_inode_info),
96 0, (SLAB_RECLAIM_ACCOUNT|
97 SLAB_MEM_SPREAD|SLAB_ACCOUNT),
98 init_once);
99 if (!isofs_inode_cachep)
100 return -ENOMEM;
101 return 0;
102}
103
104static void destroy_inodecache(void)
105{
106
107
108
109
110 rcu_barrier();
111 kmem_cache_destroy(isofs_inode_cachep);
112}
113
114static int isofs_remount(struct super_block *sb, int *flags, char *data)
115{
116 sync_filesystem(sb);
117 if (!(*flags & SB_RDONLY))
118 return -EROFS;
119 return 0;
120}
121
122static const struct super_operations isofs_sops = {
123 .alloc_inode = isofs_alloc_inode,
124 .destroy_inode = isofs_destroy_inode,
125 .put_super = isofs_put_super,
126 .statfs = isofs_statfs,
127 .remount_fs = isofs_remount,
128 .show_options = isofs_show_options,
129};
130
131
132static const struct dentry_operations isofs_dentry_ops[] = {
133 {
134 .d_hash = isofs_hashi,
135 .d_compare = isofs_dentry_cmpi,
136 },
137#ifdef CONFIG_JOLIET
138 {
139 .d_hash = isofs_hash_ms,
140 .d_compare = isofs_dentry_cmp_ms,
141 },
142 {
143 .d_hash = isofs_hashi_ms,
144 .d_compare = isofs_dentry_cmpi_ms,
145 },
146#endif
147};
148
149struct iso9660_options{
150 unsigned int rock:1;
151 unsigned int joliet:1;
152 unsigned int cruft:1;
153 unsigned int hide:1;
154 unsigned int showassoc:1;
155 unsigned int nocompress:1;
156 unsigned int overriderockperm:1;
157 unsigned int uid_set:1;
158 unsigned int gid_set:1;
159 unsigned int utf8:1;
160 unsigned char map;
161 unsigned char check;
162 unsigned int blocksize;
163 umode_t fmode;
164 umode_t dmode;
165 kgid_t gid;
166 kuid_t uid;
167 char *iocharset;
168
169 s32 session;
170 s32 sbsector;
171};
172
173
174
175
176static int
177isofs_hashi_common(const struct dentry *dentry, struct qstr *qstr, int ms)
178{
179 const char *name;
180 int len;
181 char c;
182 unsigned long hash;
183
184 len = qstr->len;
185 name = qstr->name;
186 if (ms) {
187 while (len && name[len-1] == '.')
188 len--;
189 }
190
191 hash = init_name_hash(dentry);
192 while (len--) {
193 c = tolower(*name++);
194 hash = partial_name_hash(c, hash);
195 }
196 qstr->hash = end_name_hash(hash);
197
198 return 0;
199}
200
201
202
203
204static int isofs_dentry_cmp_common(
205 unsigned int len, const char *str,
206 const struct qstr *name, int ms, int ci)
207{
208 int alen, blen;
209
210
211 alen = name->len;
212 blen = len;
213 if (ms) {
214 while (alen && name->name[alen-1] == '.')
215 alen--;
216 while (blen && str[blen-1] == '.')
217 blen--;
218 }
219 if (alen == blen) {
220 if (ci) {
221 if (strncasecmp(name->name, str, alen) == 0)
222 return 0;
223 } else {
224 if (strncmp(name->name, str, alen) == 0)
225 return 0;
226 }
227 }
228 return 1;
229}
230
231static int
232isofs_hashi(const struct dentry *dentry, struct qstr *qstr)
233{
234 return isofs_hashi_common(dentry, qstr, 0);
235}
236
237static int
238isofs_dentry_cmpi(const struct dentry *dentry,
239 unsigned int len, const char *str, const struct qstr *name)
240{
241 return isofs_dentry_cmp_common(len, str, name, 0, 1);
242}
243
244#ifdef CONFIG_JOLIET
245
246
247
248static int
249isofs_hash_common(const struct dentry *dentry, struct qstr *qstr, int ms)
250{
251 const char *name;
252 int len;
253
254 len = qstr->len;
255 name = qstr->name;
256 if (ms) {
257 while (len && name[len-1] == '.')
258 len--;
259 }
260
261 qstr->hash = full_name_hash(dentry, name, len);
262
263 return 0;
264}
265
266static int
267isofs_hash_ms(const struct dentry *dentry, struct qstr *qstr)
268{
269 return isofs_hash_common(dentry, qstr, 1);
270}
271
272static int
273isofs_hashi_ms(const struct dentry *dentry, struct qstr *qstr)
274{
275 return isofs_hashi_common(dentry, qstr, 1);
276}
277
278static int
279isofs_dentry_cmp_ms(const struct dentry *dentry,
280 unsigned int len, const char *str, const struct qstr *name)
281{
282 return isofs_dentry_cmp_common(len, str, name, 1, 0);
283}
284
285static int
286isofs_dentry_cmpi_ms(const struct dentry *dentry,
287 unsigned int len, const char *str, const struct qstr *name)
288{
289 return isofs_dentry_cmp_common(len, str, name, 1, 1);
290}
291#endif
292
293enum {
294 Opt_block, Opt_check_r, Opt_check_s, Opt_cruft, Opt_gid, Opt_ignore,
295 Opt_iocharset, Opt_map_a, Opt_map_n, Opt_map_o, Opt_mode, Opt_nojoliet,
296 Opt_norock, Opt_sb, Opt_session, Opt_uid, Opt_unhide, Opt_utf8, Opt_err,
297 Opt_nocompress, Opt_hide, Opt_showassoc, Opt_dmode, Opt_overriderockperm,
298};
299
300static const match_table_t tokens = {
301 {Opt_norock, "norock"},
302 {Opt_nojoliet, "nojoliet"},
303 {Opt_unhide, "unhide"},
304 {Opt_hide, "hide"},
305 {Opt_showassoc, "showassoc"},
306 {Opt_cruft, "cruft"},
307 {Opt_utf8, "utf8"},
308 {Opt_iocharset, "iocharset=%s"},
309 {Opt_map_a, "map=acorn"},
310 {Opt_map_a, "map=a"},
311 {Opt_map_n, "map=normal"},
312 {Opt_map_n, "map=n"},
313 {Opt_map_o, "map=off"},
314 {Opt_map_o, "map=o"},
315 {Opt_session, "session=%u"},
316 {Opt_sb, "sbsector=%u"},
317 {Opt_check_r, "check=relaxed"},
318 {Opt_check_r, "check=r"},
319 {Opt_check_s, "check=strict"},
320 {Opt_check_s, "check=s"},
321 {Opt_uid, "uid=%u"},
322 {Opt_gid, "gid=%u"},
323 {Opt_mode, "mode=%u"},
324 {Opt_dmode, "dmode=%u"},
325 {Opt_overriderockperm, "overriderockperm"},
326 {Opt_block, "block=%u"},
327 {Opt_ignore, "conv=binary"},
328 {Opt_ignore, "conv=b"},
329 {Opt_ignore, "conv=text"},
330 {Opt_ignore, "conv=t"},
331 {Opt_ignore, "conv=mtext"},
332 {Opt_ignore, "conv=m"},
333 {Opt_ignore, "conv=auto"},
334 {Opt_ignore, "conv=a"},
335 {Opt_nocompress, "nocompress"},
336 {Opt_err, NULL}
337};
338
339static int parse_options(char *options, struct iso9660_options *popt)
340{
341 char *p;
342 int option;
343
344 popt->map = 'n';
345 popt->rock = 1;
346 popt->joliet = 1;
347 popt->cruft = 0;
348 popt->hide = 0;
349 popt->showassoc = 0;
350 popt->check = 'u';
351 popt->nocompress = 0;
352 popt->blocksize = 1024;
353 popt->fmode = popt->dmode = ISOFS_INVALID_MODE;
354 popt->uid_set = 0;
355 popt->gid_set = 0;
356 popt->gid = GLOBAL_ROOT_GID;
357 popt->uid = GLOBAL_ROOT_UID;
358 popt->iocharset = NULL;
359 popt->utf8 = 0;
360 popt->overriderockperm = 0;
361 popt->session=-1;
362 popt->sbsector=-1;
363 if (!options)
364 return 1;
365
366 while ((p = strsep(&options, ",")) != NULL) {
367 int token;
368 substring_t args[MAX_OPT_ARGS];
369 unsigned n;
370
371 if (!*p)
372 continue;
373
374 token = match_token(p, tokens, args);
375 switch (token) {
376 case Opt_norock:
377 popt->rock = 0;
378 break;
379 case Opt_nojoliet:
380 popt->joliet = 0;
381 break;
382 case Opt_hide:
383 popt->hide = 1;
384 break;
385 case Opt_unhide:
386 case Opt_showassoc:
387 popt->showassoc = 1;
388 break;
389 case Opt_cruft:
390 popt->cruft = 1;
391 break;
392 case Opt_utf8:
393 popt->utf8 = 1;
394 break;
395#ifdef CONFIG_JOLIET
396 case Opt_iocharset:
397 kfree(popt->iocharset);
398 popt->iocharset = match_strdup(&args[0]);
399 if (!popt->iocharset)
400 return 0;
401 break;
402#endif
403 case Opt_map_a:
404 popt->map = 'a';
405 break;
406 case Opt_map_o:
407 popt->map = 'o';
408 break;
409 case Opt_map_n:
410 popt->map = 'n';
411 break;
412 case Opt_session:
413 if (match_int(&args[0], &option))
414 return 0;
415 n = option;
416
417
418
419
420 if (n >= 99)
421 return 0;
422 popt->session = n + 1;
423 break;
424 case Opt_sb:
425 if (match_int(&args[0], &option))
426 return 0;
427 popt->sbsector = option;
428 break;
429 case Opt_check_r:
430 popt->check = 'r';
431 break;
432 case Opt_check_s:
433 popt->check = 's';
434 break;
435 case Opt_ignore:
436 break;
437 case Opt_uid:
438 if (match_int(&args[0], &option))
439 return 0;
440 popt->uid = make_kuid(current_user_ns(), option);
441 if (!uid_valid(popt->uid))
442 return 0;
443 popt->uid_set = 1;
444 break;
445 case Opt_gid:
446 if (match_int(&args[0], &option))
447 return 0;
448 popt->gid = make_kgid(current_user_ns(), option);
449 if (!gid_valid(popt->gid))
450 return 0;
451 popt->gid_set = 1;
452 break;
453 case Opt_mode:
454 if (match_int(&args[0], &option))
455 return 0;
456 popt->fmode = option;
457 break;
458 case Opt_dmode:
459 if (match_int(&args[0], &option))
460 return 0;
461 popt->dmode = option;
462 break;
463 case Opt_overriderockperm:
464 popt->overriderockperm = 1;
465 break;
466 case Opt_block:
467 if (match_int(&args[0], &option))
468 return 0;
469 n = option;
470 if (n != 512 && n != 1024 && n != 2048)
471 return 0;
472 popt->blocksize = n;
473 break;
474 case Opt_nocompress:
475 popt->nocompress = 1;
476 break;
477 default:
478 return 0;
479 }
480 }
481 return 1;
482}
483
484
485
486
487static int isofs_show_options(struct seq_file *m, struct dentry *root)
488{
489 struct isofs_sb_info *sbi = ISOFS_SB(root->d_sb);
490
491 if (!sbi->s_rock) seq_puts(m, ",norock");
492 else if (!sbi->s_joliet_level) seq_puts(m, ",nojoliet");
493 if (sbi->s_cruft) seq_puts(m, ",cruft");
494 if (sbi->s_hide) seq_puts(m, ",hide");
495 if (sbi->s_nocompress) seq_puts(m, ",nocompress");
496 if (sbi->s_overriderockperm) seq_puts(m, ",overriderockperm");
497 if (sbi->s_showassoc) seq_puts(m, ",showassoc");
498 if (sbi->s_utf8) seq_puts(m, ",utf8");
499
500 if (sbi->s_check) seq_printf(m, ",check=%c", sbi->s_check);
501 if (sbi->s_mapping) seq_printf(m, ",map=%c", sbi->s_mapping);
502 if (sbi->s_session != 255) seq_printf(m, ",session=%u", sbi->s_session - 1);
503 if (sbi->s_sbsector != -1) seq_printf(m, ",sbsector=%u", sbi->s_sbsector);
504
505 if (root->d_sb->s_blocksize != 1024)
506 seq_printf(m, ",blocksize=%lu", root->d_sb->s_blocksize);
507
508 if (sbi->s_uid_set)
509 seq_printf(m, ",uid=%u",
510 from_kuid_munged(&init_user_ns, sbi->s_uid));
511 if (sbi->s_gid_set)
512 seq_printf(m, ",gid=%u",
513 from_kgid_munged(&init_user_ns, sbi->s_gid));
514
515 if (sbi->s_dmode != ISOFS_INVALID_MODE)
516 seq_printf(m, ",dmode=%o", sbi->s_dmode);
517 if (sbi->s_fmode != ISOFS_INVALID_MODE)
518 seq_printf(m, ",fmode=%o", sbi->s_fmode);
519
520#ifdef CONFIG_JOLIET
521 if (sbi->s_nls_iocharset &&
522 strcmp(sbi->s_nls_iocharset->charset, CONFIG_NLS_DEFAULT) != 0)
523 seq_printf(m, ",iocharset=%s", sbi->s_nls_iocharset->charset);
524#endif
525 return 0;
526}
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544#define WE_OBEY_THE_WRITTEN_STANDARDS 1
545
546static unsigned int isofs_get_last_session(struct super_block *sb, s32 session)
547{
548 struct cdrom_multisession ms_info;
549 unsigned int vol_desc_start;
550 struct block_device *bdev = sb->s_bdev;
551 int i;
552
553 vol_desc_start=0;
554 ms_info.addr_format=CDROM_LBA;
555 if (session > 0) {
556 struct cdrom_tocentry Te;
557 Te.cdte_track=session;
558 Te.cdte_format=CDROM_LBA;
559 i = ioctl_by_bdev(bdev, CDROMREADTOCENTRY, (unsigned long) &Te);
560 if (!i) {
561 printk(KERN_DEBUG "ISOFS: Session %d start %d type %d\n",
562 session, Te.cdte_addr.lba,
563 Te.cdte_ctrl&CDROM_DATA_TRACK);
564 if ((Te.cdte_ctrl&CDROM_DATA_TRACK) == 4)
565 return Te.cdte_addr.lba;
566 }
567
568 printk(KERN_ERR "ISOFS: Invalid session number or type of track\n");
569 }
570 i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info);
571 if (session > 0)
572 printk(KERN_ERR "ISOFS: Invalid session number\n");
573#if 0
574 printk(KERN_DEBUG "isofs.inode: CDROMMULTISESSION: rc=%d\n",i);
575 if (i==0) {
576 printk(KERN_DEBUG "isofs.inode: XA disk: %s\n",ms_info.xa_flag?"yes":"no");
577 printk(KERN_DEBUG "isofs.inode: vol_desc_start = %d\n", ms_info.addr.lba);
578 }
579#endif
580 if (i==0)
581#if WE_OBEY_THE_WRITTEN_STANDARDS
582 if (ms_info.xa_flag)
583#endif
584 vol_desc_start=ms_info.addr.lba;
585 return vol_desc_start;
586}
587
588
589
590
591
592
593
594
595static bool rootdir_empty(struct super_block *sb, unsigned long block)
596{
597 int offset = 0, files = 0, de_len;
598 struct iso_directory_record *de;
599 struct buffer_head *bh;
600
601 bh = sb_bread(sb, block);
602 if (!bh)
603 return true;
604 while (files < 3) {
605 de = (struct iso_directory_record *) (bh->b_data + offset);
606 de_len = *(unsigned char *) de;
607 if (de_len == 0)
608 break;
609 files++;
610 offset += de_len;
611 }
612 brelse(bh);
613 return files < 3;
614}
615
616
617
618
619
620
621
622static int isofs_fill_super(struct super_block *s, void *data, int silent)
623{
624 struct buffer_head *bh = NULL, *pri_bh = NULL;
625 struct hs_primary_descriptor *h_pri = NULL;
626 struct iso_primary_descriptor *pri = NULL;
627 struct iso_supplementary_descriptor *sec = NULL;
628 struct iso_directory_record *rootp;
629 struct inode *inode;
630 struct iso9660_options opt;
631 struct isofs_sb_info *sbi;
632 unsigned long first_data_zone;
633 int joliet_level = 0;
634 int iso_blknum, block;
635 int orig_zonesize;
636 int table, error = -EINVAL;
637 unsigned int vol_desc_start;
638
639 sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
640 if (!sbi)
641 return -ENOMEM;
642 s->s_fs_info = sbi;
643
644 if (!parse_options((char *)data, &opt))
645 goto out_freesbi;
646
647
648
649
650
651
652
653
654
655
656 opt.blocksize = sb_min_blocksize(s, opt.blocksize);
657
658 sbi->s_high_sierra = 0;
659 sbi->s_session = opt.session;
660 sbi->s_sbsector = opt.sbsector;
661
662 vol_desc_start = (opt.sbsector != -1) ?
663 opt.sbsector : isofs_get_last_session(s,opt.session);
664
665 for (iso_blknum = vol_desc_start+16;
666 iso_blknum < vol_desc_start+100; iso_blknum++) {
667 struct hs_volume_descriptor *hdp;
668 struct iso_volume_descriptor *vdp;
669
670 block = iso_blknum << (ISOFS_BLOCK_BITS - s->s_blocksize_bits);
671 if (!(bh = sb_bread(s, block)))
672 goto out_no_read;
673
674 vdp = (struct iso_volume_descriptor *)bh->b_data;
675 hdp = (struct hs_volume_descriptor *)bh->b_data;
676
677
678
679
680
681
682 if (strncmp (vdp->id, ISO_STANDARD_ID, sizeof vdp->id) == 0) {
683 if (isonum_711(vdp->type) == ISO_VD_END)
684 break;
685 if (isonum_711(vdp->type) == ISO_VD_PRIMARY) {
686 if (!pri) {
687 pri = (struct iso_primary_descriptor *)vdp;
688
689 pri_bh = bh;
690 bh = NULL;
691 }
692 }
693#ifdef CONFIG_JOLIET
694 else if (isonum_711(vdp->type) == ISO_VD_SUPPLEMENTARY) {
695 sec = (struct iso_supplementary_descriptor *)vdp;
696 if (sec->escape[0] == 0x25 && sec->escape[1] == 0x2f) {
697 if (opt.joliet) {
698 if (sec->escape[2] == 0x40)
699 joliet_level = 1;
700 else if (sec->escape[2] == 0x43)
701 joliet_level = 2;
702 else if (sec->escape[2] == 0x45)
703 joliet_level = 3;
704
705 printk(KERN_DEBUG "ISO 9660 Extensions: "
706 "Microsoft Joliet Level %d\n",
707 joliet_level);
708 }
709 goto root_found;
710 } else {
711
712 sec = NULL;
713 }
714 }
715#endif
716 } else {
717 if (strncmp (hdp->id, HS_STANDARD_ID, sizeof hdp->id) == 0) {
718 if (isonum_711(hdp->type) != ISO_VD_PRIMARY)
719 goto out_freebh;
720
721 sbi->s_high_sierra = 1;
722 opt.rock = 0;
723 h_pri = (struct hs_primary_descriptor *)vdp;
724 goto root_found;
725 }
726 }
727
728
729
730 brelse(bh);
731 bh = NULL;
732 }
733
734
735
736
737 if (!pri)
738 goto out_unknown_format;
739 brelse(bh);
740 bh = pri_bh;
741 pri_bh = NULL;
742
743root_found:
744
745 if (!sb_rdonly(s)) {
746 error = -EACCES;
747 goto out_freebh;
748 }
749
750 if (joliet_level && (!pri || !opt.rock)) {
751
752
753
754 pri = (struct iso_primary_descriptor *) sec;
755 }
756
757 if(sbi->s_high_sierra){
758 rootp = (struct iso_directory_record *) h_pri->root_directory_record;
759 sbi->s_nzones = isonum_733(h_pri->volume_space_size);
760 sbi->s_log_zone_size = isonum_723(h_pri->logical_block_size);
761 sbi->s_max_size = isonum_733(h_pri->volume_space_size);
762 } else {
763 if (!pri)
764 goto out_freebh;
765 rootp = (struct iso_directory_record *) pri->root_directory_record;
766 sbi->s_nzones = isonum_733(pri->volume_space_size);
767 sbi->s_log_zone_size = isonum_723(pri->logical_block_size);
768 sbi->s_max_size = isonum_733(pri->volume_space_size);
769 }
770
771 sbi->s_ninodes = 0;
772
773 orig_zonesize = sbi->s_log_zone_size;
774
775
776
777
778
779
780
781 if (orig_zonesize < opt.blocksize)
782 goto out_bad_size;
783
784
785 switch (sbi->s_log_zone_size) {
786 case 512: sbi->s_log_zone_size = 9; break;
787 case 1024: sbi->s_log_zone_size = 10; break;
788 case 2048: sbi->s_log_zone_size = 11; break;
789
790 default:
791 goto out_bad_zone_size;
792 }
793
794 s->s_magic = ISOFS_SUPER_MAGIC;
795
796
797
798
799
800 s->s_maxbytes = 0x80000000000LL;
801
802
803
804
805 first_data_zone = isonum_733(rootp->extent) +
806 isonum_711(rootp->ext_attr_length);
807 sbi->s_firstdatazone = first_data_zone;
808#ifndef BEQUIET
809 printk(KERN_DEBUG "ISOFS: Max size:%ld Log zone size:%ld\n",
810 sbi->s_max_size, 1UL << sbi->s_log_zone_size);
811 printk(KERN_DEBUG "ISOFS: First datazone:%ld\n", sbi->s_firstdatazone);
812 if(sbi->s_high_sierra)
813 printk(KERN_DEBUG "ISOFS: Disc in High Sierra format.\n");
814#endif
815
816
817
818
819
820
821
822
823
824 if (joliet_level) {
825 pri = (struct iso_primary_descriptor *) sec;
826 rootp = (struct iso_directory_record *)
827 pri->root_directory_record;
828 first_data_zone = isonum_733(rootp->extent) +
829 isonum_711(rootp->ext_attr_length);
830 }
831
832
833
834
835
836 brelse(pri_bh);
837 brelse(bh);
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856 sb_set_blocksize(s, orig_zonesize);
857
858 sbi->s_nls_iocharset = NULL;
859
860#ifdef CONFIG_JOLIET
861 if (joliet_level && opt.utf8 == 0) {
862 char *p = opt.iocharset ? opt.iocharset : CONFIG_NLS_DEFAULT;
863 sbi->s_nls_iocharset = load_nls(p);
864 if (! sbi->s_nls_iocharset) {
865
866 if (opt.iocharset)
867 goto out_freesbi;
868 sbi->s_nls_iocharset = load_nls_default();
869 }
870 }
871#endif
872 s->s_op = &isofs_sops;
873 s->s_export_op = &isofs_export_ops;
874 sbi->s_mapping = opt.map;
875 sbi->s_rock = (opt.rock ? 2 : 0);
876 sbi->s_rock_offset = -1;
877 sbi->s_cruft = opt.cruft;
878 sbi->s_hide = opt.hide;
879 sbi->s_showassoc = opt.showassoc;
880 sbi->s_uid = opt.uid;
881 sbi->s_gid = opt.gid;
882 sbi->s_uid_set = opt.uid_set;
883 sbi->s_gid_set = opt.gid_set;
884 sbi->s_utf8 = opt.utf8;
885 sbi->s_nocompress = opt.nocompress;
886 sbi->s_overriderockperm = opt.overriderockperm;
887
888
889
890
891
892 if (opt.fmode != ISOFS_INVALID_MODE)
893 sbi->s_fmode = opt.fmode & 0777;
894 else
895 sbi->s_fmode = ISOFS_INVALID_MODE;
896 if (opt.dmode != ISOFS_INVALID_MODE)
897 sbi->s_dmode = opt.dmode & 0777;
898 else
899 sbi->s_dmode = ISOFS_INVALID_MODE;
900
901
902
903
904
905
906 inode = isofs_iget(s, sbi->s_firstdatazone, 0);
907 if (IS_ERR(inode))
908 goto out_no_root;
909
910
911
912
913
914 if (sbi->s_rock == 1 && joliet_level &&
915 rootdir_empty(s, sbi->s_firstdatazone)) {
916 printk(KERN_NOTICE
917 "ISOFS: primary root directory is empty. "
918 "Disabling Rock Ridge and switching to Joliet.");
919 sbi->s_rock = 0;
920 }
921
922
923
924
925
926
927
928
929
930 if (sbi->s_rock == 1) {
931 joliet_level = 0;
932 } else if (joliet_level) {
933 sbi->s_rock = 0;
934 if (sbi->s_firstdatazone != first_data_zone) {
935 sbi->s_firstdatazone = first_data_zone;
936 printk(KERN_DEBUG
937 "ISOFS: changing to secondary root\n");
938 iput(inode);
939 inode = isofs_iget(s, sbi->s_firstdatazone, 0);
940 if (IS_ERR(inode))
941 goto out_no_root;
942 }
943 }
944
945 if (opt.check == 'u') {
946
947 if (joliet_level)
948 opt.check = 'r';
949 else
950 opt.check = 's';
951 }
952 sbi->s_joliet_level = joliet_level;
953
954
955 if (!S_ISDIR(inode->i_mode)) {
956 printk(KERN_WARNING
957 "isofs_fill_super: root inode is not a directory. "
958 "Corrupted media?\n");
959 goto out_iput;
960 }
961
962 table = 0;
963 if (joliet_level)
964 table += 2;
965 if (opt.check == 'r')
966 table++;
967 sbi->s_check = opt.check;
968
969 if (table)
970 s->s_d_op = &isofs_dentry_ops[table - 1];
971
972
973 s->s_root = d_make_root(inode);
974 if (!(s->s_root)) {
975 error = -ENOMEM;
976 goto out_no_inode;
977 }
978
979 kfree(opt.iocharset);
980
981 return 0;
982
983
984
985
986out_iput:
987 iput(inode);
988 goto out_no_inode;
989out_no_root:
990 error = PTR_ERR(inode);
991 if (error != -ENOMEM)
992 printk(KERN_WARNING "%s: get root inode failed\n", __func__);
993out_no_inode:
994#ifdef CONFIG_JOLIET
995 unload_nls(sbi->s_nls_iocharset);
996#endif
997 goto out_freesbi;
998out_no_read:
999 printk(KERN_WARNING "%s: bread failed, dev=%s, iso_blknum=%d, block=%d\n",
1000 __func__, s->s_id, iso_blknum, block);
1001 goto out_freebh;
1002out_bad_zone_size:
1003 printk(KERN_WARNING "ISOFS: Bad logical zone size %ld\n",
1004 sbi->s_log_zone_size);
1005 goto out_freebh;
1006out_bad_size:
1007 printk(KERN_WARNING "ISOFS: Logical zone size(%d) < hardware blocksize(%u)\n",
1008 orig_zonesize, opt.blocksize);
1009 goto out_freebh;
1010out_unknown_format:
1011 if (!silent)
1012 printk(KERN_WARNING "ISOFS: Unable to identify CD-ROM format.\n");
1013
1014out_freebh:
1015 brelse(bh);
1016 brelse(pri_bh);
1017out_freesbi:
1018 kfree(opt.iocharset);
1019 kfree(sbi);
1020 s->s_fs_info = NULL;
1021 return error;
1022}
1023
1024static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
1025{
1026 struct super_block *sb = dentry->d_sb;
1027 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
1028
1029 buf->f_type = ISOFS_SUPER_MAGIC;
1030 buf->f_bsize = sb->s_blocksize;
1031 buf->f_blocks = (ISOFS_SB(sb)->s_nzones
1032 << (ISOFS_SB(sb)->s_log_zone_size - sb->s_blocksize_bits));
1033 buf->f_bfree = 0;
1034 buf->f_bavail = 0;
1035 buf->f_files = ISOFS_SB(sb)->s_ninodes;
1036 buf->f_ffree = 0;
1037 buf->f_fsid.val[0] = (u32)id;
1038 buf->f_fsid.val[1] = (u32)(id >> 32);
1039 buf->f_namelen = NAME_MAX;
1040 return 0;
1041}
1042
1043
1044
1045
1046
1047
1048int isofs_get_blocks(struct inode *inode, sector_t iblock,
1049 struct buffer_head **bh, unsigned long nblocks)
1050{
1051 unsigned long b_off = iblock;
1052 unsigned offset, sect_size;
1053 unsigned int firstext;
1054 unsigned long nextblk, nextoff;
1055 int section, rv, error;
1056 struct iso_inode_info *ei = ISOFS_I(inode);
1057
1058 error = -EIO;
1059 rv = 0;
1060 if (iblock != b_off) {
1061 printk(KERN_DEBUG "%s: block number too large\n", __func__);
1062 goto abort;
1063 }
1064
1065
1066 offset = 0;
1067 firstext = ei->i_first_extent;
1068 sect_size = ei->i_section_size >> ISOFS_BUFFER_BITS(inode);
1069 nextblk = ei->i_next_section_block;
1070 nextoff = ei->i_next_section_offset;
1071 section = 0;
1072
1073 while (nblocks) {
1074
1075
1076
1077
1078
1079
1080
1081 if (b_off > ((inode->i_size + PAGE_SIZE - 1) >> ISOFS_BUFFER_BITS(inode))) {
1082 printk(KERN_DEBUG "%s: block >= EOF (%lu, %llu)\n",
1083 __func__, b_off,
1084 (unsigned long long)inode->i_size);
1085 goto abort;
1086 }
1087
1088
1089
1090
1091
1092 while (nextblk && (b_off >= (offset + sect_size))) {
1093 struct inode *ninode;
1094
1095 offset += sect_size;
1096 ninode = isofs_iget(inode->i_sb, nextblk, nextoff);
1097 if (IS_ERR(ninode)) {
1098 error = PTR_ERR(ninode);
1099 goto abort;
1100 }
1101 firstext = ISOFS_I(ninode)->i_first_extent;
1102 sect_size = ISOFS_I(ninode)->i_section_size >> ISOFS_BUFFER_BITS(ninode);
1103 nextblk = ISOFS_I(ninode)->i_next_section_block;
1104 nextoff = ISOFS_I(ninode)->i_next_section_offset;
1105 iput(ninode);
1106
1107 if (++section > 100) {
1108 printk(KERN_DEBUG "%s: More than 100 file sections ?!?"
1109 " aborting...\n", __func__);
1110 printk(KERN_DEBUG "%s: block=%lu firstext=%u sect_size=%u "
1111 "nextblk=%lu nextoff=%lu\n", __func__,
1112 b_off, firstext, (unsigned) sect_size,
1113 nextblk, nextoff);
1114 goto abort;
1115 }
1116 }
1117
1118 if (*bh) {
1119 map_bh(*bh, inode->i_sb, firstext + b_off - offset);
1120 } else {
1121 *bh = sb_getblk(inode->i_sb, firstext+b_off-offset);
1122 if (!*bh)
1123 goto abort;
1124 }
1125 bh++;
1126 b_off++;
1127 nblocks--;
1128 rv++;
1129 }
1130
1131 error = 0;
1132abort:
1133 return rv != 0 ? rv : error;
1134}
1135
1136
1137
1138
1139static int isofs_get_block(struct inode *inode, sector_t iblock,
1140 struct buffer_head *bh_result, int create)
1141{
1142 int ret;
1143
1144 if (create) {
1145 printk(KERN_DEBUG "%s: Kernel tries to allocate a block\n", __func__);
1146 return -EROFS;
1147 }
1148
1149 ret = isofs_get_blocks(inode, iblock, &bh_result, 1);
1150 return ret < 0 ? ret : 0;
1151}
1152
1153static int isofs_bmap(struct inode *inode, sector_t block)
1154{
1155 struct buffer_head dummy;
1156 int error;
1157
1158 dummy.b_state = 0;
1159 dummy.b_blocknr = -1000;
1160 error = isofs_get_block(inode, block, &dummy, 0);
1161 if (!error)
1162 return dummy.b_blocknr;
1163 return 0;
1164}
1165
1166struct buffer_head *isofs_bread(struct inode *inode, sector_t block)
1167{
1168 sector_t blknr = isofs_bmap(inode, block);
1169 if (!blknr)
1170 return NULL;
1171 return sb_bread(inode->i_sb, blknr);
1172}
1173
1174static int isofs_readpage(struct file *file, struct page *page)
1175{
1176 return mpage_readpage(page, isofs_get_block);
1177}
1178
1179static int isofs_readpages(struct file *file, struct address_space *mapping,
1180 struct list_head *pages, unsigned nr_pages)
1181{
1182 return mpage_readpages(mapping, pages, nr_pages, isofs_get_block);
1183}
1184
1185static sector_t _isofs_bmap(struct address_space *mapping, sector_t block)
1186{
1187 return generic_block_bmap(mapping,block,isofs_get_block);
1188}
1189
1190static const struct address_space_operations isofs_aops = {
1191 .readpage = isofs_readpage,
1192 .readpages = isofs_readpages,
1193 .bmap = _isofs_bmap
1194};
1195
1196static int isofs_read_level3_size(struct inode *inode)
1197{
1198 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
1199 int high_sierra = ISOFS_SB(inode->i_sb)->s_high_sierra;
1200 struct buffer_head *bh = NULL;
1201 unsigned long block, offset, block_saved, offset_saved;
1202 int i = 0;
1203 int more_entries = 0;
1204 struct iso_directory_record *tmpde = NULL;
1205 struct iso_inode_info *ei = ISOFS_I(inode);
1206
1207 inode->i_size = 0;
1208
1209
1210
1211
1212 ei->i_next_section_block = 0;
1213 ei->i_next_section_offset = 0;
1214
1215 block = ei->i_iget5_block;
1216 offset = ei->i_iget5_offset;
1217
1218 do {
1219 struct iso_directory_record *de;
1220 unsigned int de_len;
1221
1222 if (!bh) {
1223 bh = sb_bread(inode->i_sb, block);
1224 if (!bh)
1225 goto out_noread;
1226 }
1227 de = (struct iso_directory_record *) (bh->b_data + offset);
1228 de_len = *(unsigned char *) de;
1229
1230 if (de_len == 0) {
1231 brelse(bh);
1232 bh = NULL;
1233 ++block;
1234 offset = 0;
1235 continue;
1236 }
1237
1238 block_saved = block;
1239 offset_saved = offset;
1240 offset += de_len;
1241
1242
1243 if (offset >= bufsize) {
1244 int slop = bufsize - offset + de_len;
1245 if (!tmpde) {
1246 tmpde = kmalloc(256, GFP_KERNEL);
1247 if (!tmpde)
1248 goto out_nomem;
1249 }
1250 memcpy(tmpde, de, slop);
1251 offset &= bufsize - 1;
1252 block++;
1253 brelse(bh);
1254 bh = NULL;
1255 if (offset) {
1256 bh = sb_bread(inode->i_sb, block);
1257 if (!bh)
1258 goto out_noread;
1259 memcpy((void *)tmpde+slop, bh->b_data, offset);
1260 }
1261 de = tmpde;
1262 }
1263
1264 inode->i_size += isonum_733(de->size);
1265 if (i == 1) {
1266 ei->i_next_section_block = block_saved;
1267 ei->i_next_section_offset = offset_saved;
1268 }
1269
1270 more_entries = de->flags[-high_sierra] & 0x80;
1271
1272 i++;
1273 if (i > 100)
1274 goto out_toomany;
1275 } while (more_entries);
1276out:
1277 kfree(tmpde);
1278 if (bh)
1279 brelse(bh);
1280 return 0;
1281
1282out_nomem:
1283 if (bh)
1284 brelse(bh);
1285 return -ENOMEM;
1286
1287out_noread:
1288 printk(KERN_INFO "ISOFS: unable to read i-node block %lu\n", block);
1289 kfree(tmpde);
1290 return -EIO;
1291
1292out_toomany:
1293 printk(KERN_INFO "%s: More than 100 file sections ?!?, aborting...\n"
1294 "isofs_read_level3_size: inode=%lu\n",
1295 __func__, inode->i_ino);
1296 goto out;
1297}
1298
1299static int isofs_read_inode(struct inode *inode, int relocated)
1300{
1301 struct super_block *sb = inode->i_sb;
1302 struct isofs_sb_info *sbi = ISOFS_SB(sb);
1303 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
1304 unsigned long block;
1305 int high_sierra = sbi->s_high_sierra;
1306 struct buffer_head *bh;
1307 struct iso_directory_record *de;
1308 struct iso_directory_record *tmpde = NULL;
1309 unsigned int de_len;
1310 unsigned long offset;
1311 struct iso_inode_info *ei = ISOFS_I(inode);
1312 int ret = -EIO;
1313
1314 block = ei->i_iget5_block;
1315 bh = sb_bread(inode->i_sb, block);
1316 if (!bh)
1317 goto out_badread;
1318
1319 offset = ei->i_iget5_offset;
1320
1321 de = (struct iso_directory_record *) (bh->b_data + offset);
1322 de_len = *(unsigned char *) de;
1323
1324 if (offset + de_len > bufsize) {
1325 int frag1 = bufsize - offset;
1326
1327 tmpde = kmalloc(de_len, GFP_KERNEL);
1328 if (!tmpde) {
1329 ret = -ENOMEM;
1330 goto fail;
1331 }
1332 memcpy(tmpde, bh->b_data + offset, frag1);
1333 brelse(bh);
1334 bh = sb_bread(inode->i_sb, ++block);
1335 if (!bh)
1336 goto out_badread;
1337 memcpy((char *)tmpde+frag1, bh->b_data, de_len - frag1);
1338 de = tmpde;
1339 }
1340
1341 inode->i_ino = isofs_get_ino(ei->i_iget5_block,
1342 ei->i_iget5_offset,
1343 ISOFS_BUFFER_BITS(inode));
1344
1345
1346 ei->i_file_format = isofs_file_normal;
1347
1348 if (de->flags[-high_sierra] & 2) {
1349 if (sbi->s_dmode != ISOFS_INVALID_MODE)
1350 inode->i_mode = S_IFDIR | sbi->s_dmode;
1351 else
1352 inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
1353 set_nlink(inode, 1);
1354
1355
1356
1357
1358
1359
1360 } else {
1361 if (sbi->s_fmode != ISOFS_INVALID_MODE) {
1362 inode->i_mode = S_IFREG | sbi->s_fmode;
1363 } else {
1364
1365
1366
1367
1368
1369 inode->i_mode = S_IFREG | S_IRUGO | S_IXUGO;
1370 }
1371 set_nlink(inode, 1);
1372 }
1373 inode->i_uid = sbi->s_uid;
1374 inode->i_gid = sbi->s_gid;
1375 inode->i_blocks = 0;
1376
1377 ei->i_format_parm[0] = 0;
1378 ei->i_format_parm[1] = 0;
1379 ei->i_format_parm[2] = 0;
1380
1381 ei->i_section_size = isonum_733(de->size);
1382 if (de->flags[-high_sierra] & 0x80) {
1383 ret = isofs_read_level3_size(inode);
1384 if (ret < 0)
1385 goto fail;
1386 ret = -EIO;
1387 } else {
1388 ei->i_next_section_block = 0;
1389 ei->i_next_section_offset = 0;
1390 inode->i_size = isonum_733(de->size);
1391 }
1392
1393
1394
1395
1396
1397
1398
1399 if (sbi->s_cruft)
1400 inode->i_size &= 0x00ffffff;
1401
1402 if (de->interleave[0]) {
1403 printk(KERN_DEBUG "ISOFS: Interleaved files not (yet) supported.\n");
1404 inode->i_size = 0;
1405 }
1406
1407
1408
1409 if (de->file_unit_size[0] != 0) {
1410 printk(KERN_DEBUG "ISOFS: File unit size != 0 for ISO file (%ld).\n",
1411 inode->i_ino);
1412 }
1413
1414
1415
1416#ifdef DEBUG
1417 if((de->flags[-high_sierra] & ~2)!= 0){
1418 printk(KERN_DEBUG "ISOFS: Unusual flag settings for ISO file "
1419 "(%ld %x).\n",
1420 inode->i_ino, de->flags[-high_sierra]);
1421 }
1422#endif
1423
1424 inode->i_mtime.tv_sec =
1425 inode->i_atime.tv_sec =
1426 inode->i_ctime.tv_sec = iso_date(de->date, high_sierra);
1427 inode->i_mtime.tv_nsec =
1428 inode->i_atime.tv_nsec =
1429 inode->i_ctime.tv_nsec = 0;
1430
1431 ei->i_first_extent = (isonum_733(de->extent) +
1432 isonum_711(de->ext_attr_length));
1433
1434
1435 inode->i_blocks = (inode->i_size + 511) >> 9;
1436
1437
1438
1439
1440
1441
1442 if (!high_sierra) {
1443 parse_rock_ridge_inode(de, inode, relocated);
1444
1445 if (sbi->s_uid_set)
1446 inode->i_uid = sbi->s_uid;
1447 if (sbi->s_gid_set)
1448 inode->i_gid = sbi->s_gid;
1449 }
1450
1451 if (S_ISDIR(inode->i_mode) && sbi->s_overriderockperm &&
1452 sbi->s_dmode != ISOFS_INVALID_MODE)
1453 inode->i_mode = S_IFDIR | sbi->s_dmode;
1454 if (S_ISREG(inode->i_mode) && sbi->s_overriderockperm &&
1455 sbi->s_fmode != ISOFS_INVALID_MODE)
1456 inode->i_mode = S_IFREG | sbi->s_fmode;
1457
1458
1459 if (S_ISREG(inode->i_mode)) {
1460 inode->i_fop = &generic_ro_fops;
1461 switch (ei->i_file_format) {
1462#ifdef CONFIG_ZISOFS
1463 case isofs_file_compressed:
1464 inode->i_data.a_ops = &zisofs_aops;
1465 break;
1466#endif
1467 default:
1468 inode->i_data.a_ops = &isofs_aops;
1469 break;
1470 }
1471 } else if (S_ISDIR(inode->i_mode)) {
1472 inode->i_op = &isofs_dir_inode_operations;
1473 inode->i_fop = &isofs_dir_operations;
1474 } else if (S_ISLNK(inode->i_mode)) {
1475 inode->i_op = &page_symlink_inode_operations;
1476 inode_nohighmem(inode);
1477 inode->i_data.a_ops = &isofs_symlink_aops;
1478 } else
1479
1480 init_special_inode(inode, inode->i_mode, inode->i_rdev);
1481
1482 ret = 0;
1483out:
1484 kfree(tmpde);
1485 if (bh)
1486 brelse(bh);
1487 return ret;
1488
1489out_badread:
1490 printk(KERN_WARNING "ISOFS: unable to read i-node block\n");
1491fail:
1492 goto out;
1493}
1494
1495struct isofs_iget5_callback_data {
1496 unsigned long block;
1497 unsigned long offset;
1498};
1499
1500static int isofs_iget5_test(struct inode *ino, void *data)
1501{
1502 struct iso_inode_info *i = ISOFS_I(ino);
1503 struct isofs_iget5_callback_data *d =
1504 (struct isofs_iget5_callback_data*)data;
1505 return (i->i_iget5_block == d->block)
1506 && (i->i_iget5_offset == d->offset);
1507}
1508
1509static int isofs_iget5_set(struct inode *ino, void *data)
1510{
1511 struct iso_inode_info *i = ISOFS_I(ino);
1512 struct isofs_iget5_callback_data *d =
1513 (struct isofs_iget5_callback_data*)data;
1514 i->i_iget5_block = d->block;
1515 i->i_iget5_offset = d->offset;
1516 return 0;
1517}
1518
1519
1520
1521
1522
1523struct inode *__isofs_iget(struct super_block *sb,
1524 unsigned long block,
1525 unsigned long offset,
1526 int relocated)
1527{
1528 unsigned long hashval;
1529 struct inode *inode;
1530 struct isofs_iget5_callback_data data;
1531 long ret;
1532
1533 if (offset >= 1ul << sb->s_blocksize_bits)
1534 return ERR_PTR(-EINVAL);
1535
1536 data.block = block;
1537 data.offset = offset;
1538
1539 hashval = (block << sb->s_blocksize_bits) | offset;
1540
1541 inode = iget5_locked(sb, hashval, &isofs_iget5_test,
1542 &isofs_iget5_set, &data);
1543
1544 if (!inode)
1545 return ERR_PTR(-ENOMEM);
1546
1547 if (inode->i_state & I_NEW) {
1548 ret = isofs_read_inode(inode, relocated);
1549 if (ret < 0) {
1550 iget_failed(inode);
1551 inode = ERR_PTR(ret);
1552 } else {
1553 unlock_new_inode(inode);
1554 }
1555 }
1556
1557 return inode;
1558}
1559
1560static struct dentry *isofs_mount(struct file_system_type *fs_type,
1561 int flags, const char *dev_name, void *data)
1562{
1563 return mount_bdev(fs_type, flags, dev_name, data, isofs_fill_super);
1564}
1565
1566static struct file_system_type iso9660_fs_type = {
1567 .owner = THIS_MODULE,
1568 .name = "iso9660",
1569 .mount = isofs_mount,
1570 .kill_sb = kill_block_super,
1571 .fs_flags = FS_REQUIRES_DEV,
1572};
1573MODULE_ALIAS_FS("iso9660");
1574MODULE_ALIAS("iso9660");
1575
1576static int __init init_iso9660_fs(void)
1577{
1578 int err = init_inodecache();
1579 if (err)
1580 goto out;
1581#ifdef CONFIG_ZISOFS
1582 err = zisofs_init();
1583 if (err)
1584 goto out1;
1585#endif
1586 err = register_filesystem(&iso9660_fs_type);
1587 if (err)
1588 goto out2;
1589 return 0;
1590out2:
1591#ifdef CONFIG_ZISOFS
1592 zisofs_cleanup();
1593out1:
1594#endif
1595 destroy_inodecache();
1596out:
1597 return err;
1598}
1599
1600static void __exit exit_iso9660_fs(void)
1601{
1602 unregister_filesystem(&iso9660_fs_type);
1603#ifdef CONFIG_ZISOFS
1604 zisofs_cleanup();
1605#endif
1606 destroy_inodecache();
1607}
1608
1609module_init(init_iso9660_fs)
1610module_exit(exit_iso9660_fs)
1611MODULE_LICENSE("GPL");
1612
