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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 & MS_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 popt->iocharset = match_strdup(&args[0]);
398 break;
399#endif
400 case Opt_map_a:
401 popt->map = 'a';
402 break;
403 case Opt_map_o:
404 popt->map = 'o';
405 break;
406 case Opt_map_n:
407 popt->map = 'n';
408 break;
409 case Opt_session:
410 if (match_int(&args[0], &option))
411 return 0;
412 n = option;
413
414
415
416
417 if (n >= 99)
418 return 0;
419 popt->session = n + 1;
420 break;
421 case Opt_sb:
422 if (match_int(&args[0], &option))
423 return 0;
424 popt->sbsector = option;
425 break;
426 case Opt_check_r:
427 popt->check = 'r';
428 break;
429 case Opt_check_s:
430 popt->check = 's';
431 break;
432 case Opt_ignore:
433 break;
434 case Opt_uid:
435 if (match_int(&args[0], &option))
436 return 0;
437 popt->uid = make_kuid(current_user_ns(), option);
438 if (!uid_valid(popt->uid))
439 return 0;
440 popt->uid_set = 1;
441 break;
442 case Opt_gid:
443 if (match_int(&args[0], &option))
444 return 0;
445 popt->gid = make_kgid(current_user_ns(), option);
446 if (!gid_valid(popt->gid))
447 return 0;
448 popt->gid_set = 1;
449 break;
450 case Opt_mode:
451 if (match_int(&args[0], &option))
452 return 0;
453 popt->fmode = option;
454 break;
455 case Opt_dmode:
456 if (match_int(&args[0], &option))
457 return 0;
458 popt->dmode = option;
459 break;
460 case Opt_overriderockperm:
461 popt->overriderockperm = 1;
462 break;
463 case Opt_block:
464 if (match_int(&args[0], &option))
465 return 0;
466 n = option;
467 if (n != 512 && n != 1024 && n != 2048)
468 return 0;
469 popt->blocksize = n;
470 break;
471 case Opt_nocompress:
472 popt->nocompress = 1;
473 break;
474 default:
475 return 0;
476 }
477 }
478 return 1;
479}
480
481
482
483
484static int isofs_show_options(struct seq_file *m, struct dentry *root)
485{
486 struct isofs_sb_info *sbi = ISOFS_SB(root->d_sb);
487
488 if (!sbi->s_rock) seq_puts(m, ",norock");
489 else if (!sbi->s_joliet_level) seq_puts(m, ",nojoliet");
490 if (sbi->s_cruft) seq_puts(m, ",cruft");
491 if (sbi->s_hide) seq_puts(m, ",hide");
492 if (sbi->s_nocompress) seq_puts(m, ",nocompress");
493 if (sbi->s_overriderockperm) seq_puts(m, ",overriderockperm");
494 if (sbi->s_showassoc) seq_puts(m, ",showassoc");
495 if (sbi->s_utf8) seq_puts(m, ",utf8");
496
497 if (sbi->s_check) seq_printf(m, ",check=%c", sbi->s_check);
498 if (sbi->s_mapping) seq_printf(m, ",map=%c", sbi->s_mapping);
499 if (sbi->s_session != 255) seq_printf(m, ",session=%u", sbi->s_session - 1);
500 if (sbi->s_sbsector != -1) seq_printf(m, ",sbsector=%u", sbi->s_sbsector);
501
502 if (root->d_sb->s_blocksize != 1024)
503 seq_printf(m, ",blocksize=%lu", root->d_sb->s_blocksize);
504
505 if (sbi->s_uid_set)
506 seq_printf(m, ",uid=%u",
507 from_kuid_munged(&init_user_ns, sbi->s_uid));
508 if (sbi->s_gid_set)
509 seq_printf(m, ",gid=%u",
510 from_kgid_munged(&init_user_ns, sbi->s_gid));
511
512 if (sbi->s_dmode != ISOFS_INVALID_MODE)
513 seq_printf(m, ",dmode=%o", sbi->s_dmode);
514 if (sbi->s_fmode != ISOFS_INVALID_MODE)
515 seq_printf(m, ",fmode=%o", sbi->s_fmode);
516
517#ifdef CONFIG_JOLIET
518 if (sbi->s_nls_iocharset &&
519 strcmp(sbi->s_nls_iocharset->charset, CONFIG_NLS_DEFAULT) != 0)
520 seq_printf(m, ",iocharset=%s", sbi->s_nls_iocharset->charset);
521#endif
522 return 0;
523}
524
525
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530
531
532
533
534
535
536
537
538
539
540
541#define WE_OBEY_THE_WRITTEN_STANDARDS 1
542
543static unsigned int isofs_get_last_session(struct super_block *sb, s32 session)
544{
545 struct cdrom_multisession ms_info;
546 unsigned int vol_desc_start;
547 struct block_device *bdev = sb->s_bdev;
548 int i;
549
550 vol_desc_start=0;
551 ms_info.addr_format=CDROM_LBA;
552 if (session > 0) {
553 struct cdrom_tocentry Te;
554 Te.cdte_track=session;
555 Te.cdte_format=CDROM_LBA;
556 i = ioctl_by_bdev(bdev, CDROMREADTOCENTRY, (unsigned long) &Te);
557 if (!i) {
558 printk(KERN_DEBUG "ISOFS: Session %d start %d type %d\n",
559 session, Te.cdte_addr.lba,
560 Te.cdte_ctrl&CDROM_DATA_TRACK);
561 if ((Te.cdte_ctrl&CDROM_DATA_TRACK) == 4)
562 return Te.cdte_addr.lba;
563 }
564
565 printk(KERN_ERR "ISOFS: Invalid session number or type of track\n");
566 }
567 i = ioctl_by_bdev(bdev, CDROMMULTISESSION, (unsigned long) &ms_info);
568 if (session > 0)
569 printk(KERN_ERR "ISOFS: Invalid session number\n");
570#if 0
571 printk(KERN_DEBUG "isofs.inode: CDROMMULTISESSION: rc=%d\n",i);
572 if (i==0) {
573 printk(KERN_DEBUG "isofs.inode: XA disk: %s\n",ms_info.xa_flag?"yes":"no");
574 printk(KERN_DEBUG "isofs.inode: vol_desc_start = %d\n", ms_info.addr.lba);
575 }
576#endif
577 if (i==0)
578#if WE_OBEY_THE_WRITTEN_STANDARDS
579 if (ms_info.xa_flag)
580#endif
581 vol_desc_start=ms_info.addr.lba;
582 return vol_desc_start;
583}
584
585
586
587
588
589
590
591
592static bool rootdir_empty(struct super_block *sb, unsigned long block)
593{
594 int offset = 0, files = 0, de_len;
595 struct iso_directory_record *de;
596 struct buffer_head *bh;
597
598 bh = sb_bread(sb, block);
599 if (!bh)
600 return true;
601 while (files < 3) {
602 de = (struct iso_directory_record *) (bh->b_data + offset);
603 de_len = *(unsigned char *) de;
604 if (de_len == 0)
605 break;
606 files++;
607 offset += de_len;
608 }
609 brelse(bh);
610 return files < 3;
611}
612
613
614
615
616
617
618
619static int isofs_fill_super(struct super_block *s, void *data, int silent)
620{
621 struct buffer_head *bh = NULL, *pri_bh = NULL;
622 struct hs_primary_descriptor *h_pri = NULL;
623 struct iso_primary_descriptor *pri = NULL;
624 struct iso_supplementary_descriptor *sec = NULL;
625 struct iso_directory_record *rootp;
626 struct inode *inode;
627 struct iso9660_options opt;
628 struct isofs_sb_info *sbi;
629 unsigned long first_data_zone;
630 int joliet_level = 0;
631 int iso_blknum, block;
632 int orig_zonesize;
633 int table, error = -EINVAL;
634 unsigned int vol_desc_start;
635
636 sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
637 if (!sbi)
638 return -ENOMEM;
639 s->s_fs_info = sbi;
640
641 if (!parse_options((char *)data, &opt))
642 goto out_freesbi;
643
644
645
646
647
648
649
650
651
652
653 opt.blocksize = sb_min_blocksize(s, opt.blocksize);
654
655 sbi->s_high_sierra = 0;
656 sbi->s_session = opt.session;
657 sbi->s_sbsector = opt.sbsector;
658
659 vol_desc_start = (opt.sbsector != -1) ?
660 opt.sbsector : isofs_get_last_session(s,opt.session);
661
662 for (iso_blknum = vol_desc_start+16;
663 iso_blknum < vol_desc_start+100; iso_blknum++) {
664 struct hs_volume_descriptor *hdp;
665 struct iso_volume_descriptor *vdp;
666
667 block = iso_blknum << (ISOFS_BLOCK_BITS - s->s_blocksize_bits);
668 if (!(bh = sb_bread(s, block)))
669 goto out_no_read;
670
671 vdp = (struct iso_volume_descriptor *)bh->b_data;
672 hdp = (struct hs_volume_descriptor *)bh->b_data;
673
674
675
676
677
678
679 if (strncmp (vdp->id, ISO_STANDARD_ID, sizeof vdp->id) == 0) {
680 if (isonum_711(vdp->type) == ISO_VD_END)
681 break;
682 if (isonum_711(vdp->type) == ISO_VD_PRIMARY) {
683 if (!pri) {
684 pri = (struct iso_primary_descriptor *)vdp;
685
686 pri_bh = bh;
687 bh = NULL;
688 }
689 }
690#ifdef CONFIG_JOLIET
691 else if (isonum_711(vdp->type) == ISO_VD_SUPPLEMENTARY) {
692 sec = (struct iso_supplementary_descriptor *)vdp;
693 if (sec->escape[0] == 0x25 && sec->escape[1] == 0x2f) {
694 if (opt.joliet) {
695 if (sec->escape[2] == 0x40)
696 joliet_level = 1;
697 else if (sec->escape[2] == 0x43)
698 joliet_level = 2;
699 else if (sec->escape[2] == 0x45)
700 joliet_level = 3;
701
702 printk(KERN_DEBUG "ISO 9660 Extensions: "
703 "Microsoft Joliet Level %d\n",
704 joliet_level);
705 }
706 goto root_found;
707 } else {
708
709 sec = NULL;
710 }
711 }
712#endif
713 } else {
714 if (strncmp (hdp->id, HS_STANDARD_ID, sizeof hdp->id) == 0) {
715 if (isonum_711(hdp->type) != ISO_VD_PRIMARY)
716 goto out_freebh;
717
718 sbi->s_high_sierra = 1;
719 opt.rock = 0;
720 h_pri = (struct hs_primary_descriptor *)vdp;
721 goto root_found;
722 }
723 }
724
725
726
727 brelse(bh);
728 bh = NULL;
729 }
730
731
732
733
734 if (!pri)
735 goto out_unknown_format;
736 brelse(bh);
737 bh = pri_bh;
738 pri_bh = NULL;
739
740root_found:
741
742 if (!sb_rdonly(s)) {
743 error = -EACCES;
744 goto out_freebh;
745 }
746
747 if (joliet_level && (!pri || !opt.rock)) {
748
749
750
751 pri = (struct iso_primary_descriptor *) sec;
752 }
753
754 if(sbi->s_high_sierra){
755 rootp = (struct iso_directory_record *) h_pri->root_directory_record;
756 sbi->s_nzones = isonum_733(h_pri->volume_space_size);
757 sbi->s_log_zone_size = isonum_723(h_pri->logical_block_size);
758 sbi->s_max_size = isonum_733(h_pri->volume_space_size);
759 } else {
760 if (!pri)
761 goto out_freebh;
762 rootp = (struct iso_directory_record *) pri->root_directory_record;
763 sbi->s_nzones = isonum_733(pri->volume_space_size);
764 sbi->s_log_zone_size = isonum_723(pri->logical_block_size);
765 sbi->s_max_size = isonum_733(pri->volume_space_size);
766 }
767
768 sbi->s_ninodes = 0;
769
770 orig_zonesize = sbi->s_log_zone_size;
771
772
773
774
775
776
777
778 if (orig_zonesize < opt.blocksize)
779 goto out_bad_size;
780
781
782 switch (sbi->s_log_zone_size) {
783 case 512: sbi->s_log_zone_size = 9; break;
784 case 1024: sbi->s_log_zone_size = 10; break;
785 case 2048: sbi->s_log_zone_size = 11; break;
786
787 default:
788 goto out_bad_zone_size;
789 }
790
791 s->s_magic = ISOFS_SUPER_MAGIC;
792
793
794
795
796
797 s->s_maxbytes = 0x80000000000LL;
798
799
800
801
802 first_data_zone = isonum_733(rootp->extent) +
803 isonum_711(rootp->ext_attr_length);
804 sbi->s_firstdatazone = first_data_zone;
805#ifndef BEQUIET
806 printk(KERN_DEBUG "ISOFS: Max size:%ld Log zone size:%ld\n",
807 sbi->s_max_size, 1UL << sbi->s_log_zone_size);
808 printk(KERN_DEBUG "ISOFS: First datazone:%ld\n", sbi->s_firstdatazone);
809 if(sbi->s_high_sierra)
810 printk(KERN_DEBUG "ISOFS: Disc in High Sierra format.\n");
811#endif
812
813
814
815
816
817
818
819
820
821 if (joliet_level) {
822 pri = (struct iso_primary_descriptor *) sec;
823 rootp = (struct iso_directory_record *)
824 pri->root_directory_record;
825 first_data_zone = isonum_733(rootp->extent) +
826 isonum_711(rootp->ext_attr_length);
827 }
828
829
830
831
832
833 brelse(pri_bh);
834 brelse(bh);
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853 sb_set_blocksize(s, orig_zonesize);
854
855 sbi->s_nls_iocharset = NULL;
856
857#ifdef CONFIG_JOLIET
858 if (joliet_level && opt.utf8 == 0) {
859 char *p = opt.iocharset ? opt.iocharset : CONFIG_NLS_DEFAULT;
860 sbi->s_nls_iocharset = load_nls(p);
861 if (! sbi->s_nls_iocharset) {
862
863 if (opt.iocharset)
864 goto out_freesbi;
865 sbi->s_nls_iocharset = load_nls_default();
866 }
867 }
868#endif
869 s->s_op = &isofs_sops;
870 s->s_export_op = &isofs_export_ops;
871 sbi->s_mapping = opt.map;
872 sbi->s_rock = (opt.rock ? 2 : 0);
873 sbi->s_rock_offset = -1;
874 sbi->s_cruft = opt.cruft;
875 sbi->s_hide = opt.hide;
876 sbi->s_showassoc = opt.showassoc;
877 sbi->s_uid = opt.uid;
878 sbi->s_gid = opt.gid;
879 sbi->s_uid_set = opt.uid_set;
880 sbi->s_gid_set = opt.gid_set;
881 sbi->s_utf8 = opt.utf8;
882 sbi->s_nocompress = opt.nocompress;
883 sbi->s_overriderockperm = opt.overriderockperm;
884
885
886
887
888
889 if (opt.fmode != ISOFS_INVALID_MODE)
890 sbi->s_fmode = opt.fmode & 0777;
891 else
892 sbi->s_fmode = ISOFS_INVALID_MODE;
893 if (opt.dmode != ISOFS_INVALID_MODE)
894 sbi->s_dmode = opt.dmode & 0777;
895 else
896 sbi->s_dmode = ISOFS_INVALID_MODE;
897
898
899
900
901
902
903 inode = isofs_iget(s, sbi->s_firstdatazone, 0);
904 if (IS_ERR(inode))
905 goto out_no_root;
906
907
908
909
910
911 if (sbi->s_rock == 1 && joliet_level &&
912 rootdir_empty(s, sbi->s_firstdatazone)) {
913 printk(KERN_NOTICE
914 "ISOFS: primary root directory is empty. "
915 "Disabling Rock Ridge and switching to Joliet.");
916 sbi->s_rock = 0;
917 }
918
919
920
921
922
923
924
925
926
927 if (sbi->s_rock == 1) {
928 joliet_level = 0;
929 } else if (joliet_level) {
930 sbi->s_rock = 0;
931 if (sbi->s_firstdatazone != first_data_zone) {
932 sbi->s_firstdatazone = first_data_zone;
933 printk(KERN_DEBUG
934 "ISOFS: changing to secondary root\n");
935 iput(inode);
936 inode = isofs_iget(s, sbi->s_firstdatazone, 0);
937 if (IS_ERR(inode))
938 goto out_no_root;
939 }
940 }
941
942 if (opt.check == 'u') {
943
944 if (joliet_level)
945 opt.check = 'r';
946 else
947 opt.check = 's';
948 }
949 sbi->s_joliet_level = joliet_level;
950
951
952 if (!S_ISDIR(inode->i_mode)) {
953 printk(KERN_WARNING
954 "isofs_fill_super: root inode is not a directory. "
955 "Corrupted media?\n");
956 goto out_iput;
957 }
958
959 table = 0;
960 if (joliet_level)
961 table += 2;
962 if (opt.check == 'r')
963 table++;
964 sbi->s_check = opt.check;
965
966 if (table)
967 s->s_d_op = &isofs_dentry_ops[table - 1];
968
969
970 s->s_root = d_make_root(inode);
971 if (!(s->s_root)) {
972 error = -ENOMEM;
973 goto out_no_inode;
974 }
975
976 kfree(opt.iocharset);
977
978 return 0;
979
980
981
982
983out_iput:
984 iput(inode);
985 goto out_no_inode;
986out_no_root:
987 error = PTR_ERR(inode);
988 if (error != -ENOMEM)
989 printk(KERN_WARNING "%s: get root inode failed\n", __func__);
990out_no_inode:
991#ifdef CONFIG_JOLIET
992 unload_nls(sbi->s_nls_iocharset);
993#endif
994 goto out_freesbi;
995out_no_read:
996 printk(KERN_WARNING "%s: bread failed, dev=%s, iso_blknum=%d, block=%d\n",
997 __func__, s->s_id, iso_blknum, block);
998 goto out_freebh;
999out_bad_zone_size:
1000 printk(KERN_WARNING "ISOFS: Bad logical zone size %ld\n",
1001 sbi->s_log_zone_size);
1002 goto out_freebh;
1003out_bad_size:
1004 printk(KERN_WARNING "ISOFS: Logical zone size(%d) < hardware blocksize(%u)\n",
1005 orig_zonesize, opt.blocksize);
1006 goto out_freebh;
1007out_unknown_format:
1008 if (!silent)
1009 printk(KERN_WARNING "ISOFS: Unable to identify CD-ROM format.\n");
1010
1011out_freebh:
1012 brelse(bh);
1013 brelse(pri_bh);
1014out_freesbi:
1015 kfree(opt.iocharset);
1016 kfree(sbi);
1017 s->s_fs_info = NULL;
1018 return error;
1019}
1020
1021static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
1022{
1023 struct super_block *sb = dentry->d_sb;
1024 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
1025
1026 buf->f_type = ISOFS_SUPER_MAGIC;
1027 buf->f_bsize = sb->s_blocksize;
1028 buf->f_blocks = (ISOFS_SB(sb)->s_nzones
1029 << (ISOFS_SB(sb)->s_log_zone_size - sb->s_blocksize_bits));
1030 buf->f_bfree = 0;
1031 buf->f_bavail = 0;
1032 buf->f_files = ISOFS_SB(sb)->s_ninodes;
1033 buf->f_ffree = 0;
1034 buf->f_fsid.val[0] = (u32)id;
1035 buf->f_fsid.val[1] = (u32)(id >> 32);
1036 buf->f_namelen = NAME_MAX;
1037 return 0;
1038}
1039
1040
1041
1042
1043
1044
1045int isofs_get_blocks(struct inode *inode, sector_t iblock,
1046 struct buffer_head **bh, unsigned long nblocks)
1047{
1048 unsigned long b_off = iblock;
1049 unsigned offset, sect_size;
1050 unsigned int firstext;
1051 unsigned long nextblk, nextoff;
1052 int section, rv, error;
1053 struct iso_inode_info *ei = ISOFS_I(inode);
1054
1055 error = -EIO;
1056 rv = 0;
1057 if (iblock != b_off) {
1058 printk(KERN_DEBUG "%s: block number too large\n", __func__);
1059 goto abort;
1060 }
1061
1062
1063 offset = 0;
1064 firstext = ei->i_first_extent;
1065 sect_size = ei->i_section_size >> ISOFS_BUFFER_BITS(inode);
1066 nextblk = ei->i_next_section_block;
1067 nextoff = ei->i_next_section_offset;
1068 section = 0;
1069
1070 while (nblocks) {
1071
1072
1073
1074
1075
1076
1077
1078 if (b_off > ((inode->i_size + PAGE_SIZE - 1) >> ISOFS_BUFFER_BITS(inode))) {
1079 printk(KERN_DEBUG "%s: block >= EOF (%lu, %llu)\n",
1080 __func__, b_off,
1081 (unsigned long long)inode->i_size);
1082 goto abort;
1083 }
1084
1085
1086
1087
1088
1089 while (nextblk && (b_off >= (offset + sect_size))) {
1090 struct inode *ninode;
1091
1092 offset += sect_size;
1093 ninode = isofs_iget(inode->i_sb, nextblk, nextoff);
1094 if (IS_ERR(ninode)) {
1095 error = PTR_ERR(ninode);
1096 goto abort;
1097 }
1098 firstext = ISOFS_I(ninode)->i_first_extent;
1099 sect_size = ISOFS_I(ninode)->i_section_size >> ISOFS_BUFFER_BITS(ninode);
1100 nextblk = ISOFS_I(ninode)->i_next_section_block;
1101 nextoff = ISOFS_I(ninode)->i_next_section_offset;
1102 iput(ninode);
1103
1104 if (++section > 100) {
1105 printk(KERN_DEBUG "%s: More than 100 file sections ?!?"
1106 " aborting...\n", __func__);
1107 printk(KERN_DEBUG "%s: block=%lu firstext=%u sect_size=%u "
1108 "nextblk=%lu nextoff=%lu\n", __func__,
1109 b_off, firstext, (unsigned) sect_size,
1110 nextblk, nextoff);
1111 goto abort;
1112 }
1113 }
1114
1115 if (*bh) {
1116 map_bh(*bh, inode->i_sb, firstext + b_off - offset);
1117 } else {
1118 *bh = sb_getblk(inode->i_sb, firstext+b_off-offset);
1119 if (!*bh)
1120 goto abort;
1121 }
1122 bh++;
1123 b_off++;
1124 nblocks--;
1125 rv++;
1126 }
1127
1128 error = 0;
1129abort:
1130 return rv != 0 ? rv : error;
1131}
1132
1133
1134
1135
1136static int isofs_get_block(struct inode *inode, sector_t iblock,
1137 struct buffer_head *bh_result, int create)
1138{
1139 int ret;
1140
1141 if (create) {
1142 printk(KERN_DEBUG "%s: Kernel tries to allocate a block\n", __func__);
1143 return -EROFS;
1144 }
1145
1146 ret = isofs_get_blocks(inode, iblock, &bh_result, 1);
1147 return ret < 0 ? ret : 0;
1148}
1149
1150static int isofs_bmap(struct inode *inode, sector_t block)
1151{
1152 struct buffer_head dummy;
1153 int error;
1154
1155 dummy.b_state = 0;
1156 dummy.b_blocknr = -1000;
1157 error = isofs_get_block(inode, block, &dummy, 0);
1158 if (!error)
1159 return dummy.b_blocknr;
1160 return 0;
1161}
1162
1163struct buffer_head *isofs_bread(struct inode *inode, sector_t block)
1164{
1165 sector_t blknr = isofs_bmap(inode, block);
1166 if (!blknr)
1167 return NULL;
1168 return sb_bread(inode->i_sb, blknr);
1169}
1170
1171static int isofs_readpage(struct file *file, struct page *page)
1172{
1173 return mpage_readpage(page, isofs_get_block);
1174}
1175
1176static int isofs_readpages(struct file *file, struct address_space *mapping,
1177 struct list_head *pages, unsigned nr_pages)
1178{
1179 return mpage_readpages(mapping, pages, nr_pages, isofs_get_block);
1180}
1181
1182static sector_t _isofs_bmap(struct address_space *mapping, sector_t block)
1183{
1184 return generic_block_bmap(mapping,block,isofs_get_block);
1185}
1186
1187static const struct address_space_operations isofs_aops = {
1188 .readpage = isofs_readpage,
1189 .readpages = isofs_readpages,
1190 .bmap = _isofs_bmap
1191};
1192
1193static int isofs_read_level3_size(struct inode *inode)
1194{
1195 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
1196 int high_sierra = ISOFS_SB(inode->i_sb)->s_high_sierra;
1197 struct buffer_head *bh = NULL;
1198 unsigned long block, offset, block_saved, offset_saved;
1199 int i = 0;
1200 int more_entries = 0;
1201 struct iso_directory_record *tmpde = NULL;
1202 struct iso_inode_info *ei = ISOFS_I(inode);
1203
1204 inode->i_size = 0;
1205
1206
1207
1208
1209 ei->i_next_section_block = 0;
1210 ei->i_next_section_offset = 0;
1211
1212 block = ei->i_iget5_block;
1213 offset = ei->i_iget5_offset;
1214
1215 do {
1216 struct iso_directory_record *de;
1217 unsigned int de_len;
1218
1219 if (!bh) {
1220 bh = sb_bread(inode->i_sb, block);
1221 if (!bh)
1222 goto out_noread;
1223 }
1224 de = (struct iso_directory_record *) (bh->b_data + offset);
1225 de_len = *(unsigned char *) de;
1226
1227 if (de_len == 0) {
1228 brelse(bh);
1229 bh = NULL;
1230 ++block;
1231 offset = 0;
1232 continue;
1233 }
1234
1235 block_saved = block;
1236 offset_saved = offset;
1237 offset += de_len;
1238
1239
1240 if (offset >= bufsize) {
1241 int slop = bufsize - offset + de_len;
1242 if (!tmpde) {
1243 tmpde = kmalloc(256, GFP_KERNEL);
1244 if (!tmpde)
1245 goto out_nomem;
1246 }
1247 memcpy(tmpde, de, slop);
1248 offset &= bufsize - 1;
1249 block++;
1250 brelse(bh);
1251 bh = NULL;
1252 if (offset) {
1253 bh = sb_bread(inode->i_sb, block);
1254 if (!bh)
1255 goto out_noread;
1256 memcpy((void *)tmpde+slop, bh->b_data, offset);
1257 }
1258 de = tmpde;
1259 }
1260
1261 inode->i_size += isonum_733(de->size);
1262 if (i == 1) {
1263 ei->i_next_section_block = block_saved;
1264 ei->i_next_section_offset = offset_saved;
1265 }
1266
1267 more_entries = de->flags[-high_sierra] & 0x80;
1268
1269 i++;
1270 if (i > 100)
1271 goto out_toomany;
1272 } while (more_entries);
1273out:
1274 kfree(tmpde);
1275 if (bh)
1276 brelse(bh);
1277 return 0;
1278
1279out_nomem:
1280 if (bh)
1281 brelse(bh);
1282 return -ENOMEM;
1283
1284out_noread:
1285 printk(KERN_INFO "ISOFS: unable to read i-node block %lu\n", block);
1286 kfree(tmpde);
1287 return -EIO;
1288
1289out_toomany:
1290 printk(KERN_INFO "%s: More than 100 file sections ?!?, aborting...\n"
1291 "isofs_read_level3_size: inode=%lu\n",
1292 __func__, inode->i_ino);
1293 goto out;
1294}
1295
1296static int isofs_read_inode(struct inode *inode, int relocated)
1297{
1298 struct super_block *sb = inode->i_sb;
1299 struct isofs_sb_info *sbi = ISOFS_SB(sb);
1300 unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
1301 unsigned long block;
1302 int high_sierra = sbi->s_high_sierra;
1303 struct buffer_head *bh;
1304 struct iso_directory_record *de;
1305 struct iso_directory_record *tmpde = NULL;
1306 unsigned int de_len;
1307 unsigned long offset;
1308 struct iso_inode_info *ei = ISOFS_I(inode);
1309 int ret = -EIO;
1310
1311 block = ei->i_iget5_block;
1312 bh = sb_bread(inode->i_sb, block);
1313 if (!bh)
1314 goto out_badread;
1315
1316 offset = ei->i_iget5_offset;
1317
1318 de = (struct iso_directory_record *) (bh->b_data + offset);
1319 de_len = *(unsigned char *) de;
1320
1321 if (offset + de_len > bufsize) {
1322 int frag1 = bufsize - offset;
1323
1324 tmpde = kmalloc(de_len, GFP_KERNEL);
1325 if (!tmpde) {
1326 ret = -ENOMEM;
1327 goto fail;
1328 }
1329 memcpy(tmpde, bh->b_data + offset, frag1);
1330 brelse(bh);
1331 bh = sb_bread(inode->i_sb, ++block);
1332 if (!bh)
1333 goto out_badread;
1334 memcpy((char *)tmpde+frag1, bh->b_data, de_len - frag1);
1335 de = tmpde;
1336 }
1337
1338 inode->i_ino = isofs_get_ino(ei->i_iget5_block,
1339 ei->i_iget5_offset,
1340 ISOFS_BUFFER_BITS(inode));
1341
1342
1343 ei->i_file_format = isofs_file_normal;
1344
1345 if (de->flags[-high_sierra] & 2) {
1346 if (sbi->s_dmode != ISOFS_INVALID_MODE)
1347 inode->i_mode = S_IFDIR | sbi->s_dmode;
1348 else
1349 inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
1350 set_nlink(inode, 1);
1351
1352
1353
1354
1355
1356
1357 } else {
1358 if (sbi->s_fmode != ISOFS_INVALID_MODE) {
1359 inode->i_mode = S_IFREG | sbi->s_fmode;
1360 } else {
1361
1362
1363
1364
1365
1366 inode->i_mode = S_IFREG | S_IRUGO | S_IXUGO;
1367 }
1368 set_nlink(inode, 1);
1369 }
1370 inode->i_uid = sbi->s_uid;
1371 inode->i_gid = sbi->s_gid;
1372 inode->i_blocks = 0;
1373
1374 ei->i_format_parm[0] = 0;
1375 ei->i_format_parm[1] = 0;
1376 ei->i_format_parm[2] = 0;
1377
1378 ei->i_section_size = isonum_733(de->size);
1379 if (de->flags[-high_sierra] & 0x80) {
1380 ret = isofs_read_level3_size(inode);
1381 if (ret < 0)
1382 goto fail;
1383 ret = -EIO;
1384 } else {
1385 ei->i_next_section_block = 0;
1386 ei->i_next_section_offset = 0;
1387 inode->i_size = isonum_733(de->size);
1388 }
1389
1390
1391
1392
1393
1394
1395
1396 if (sbi->s_cruft)
1397 inode->i_size &= 0x00ffffff;
1398
1399 if (de->interleave[0]) {
1400 printk(KERN_DEBUG "ISOFS: Interleaved files not (yet) supported.\n");
1401 inode->i_size = 0;
1402 }
1403
1404
1405
1406 if (de->file_unit_size[0] != 0) {
1407 printk(KERN_DEBUG "ISOFS: File unit size != 0 for ISO file (%ld).\n",
1408 inode->i_ino);
1409 }
1410
1411
1412
1413#ifdef DEBUG
1414 if((de->flags[-high_sierra] & ~2)!= 0){
1415 printk(KERN_DEBUG "ISOFS: Unusual flag settings for ISO file "
1416 "(%ld %x).\n",
1417 inode->i_ino, de->flags[-high_sierra]);
1418 }
1419#endif
1420
1421 inode->i_mtime.tv_sec =
1422 inode->i_atime.tv_sec =
1423 inode->i_ctime.tv_sec = iso_date(de->date, high_sierra);
1424 inode->i_mtime.tv_nsec =
1425 inode->i_atime.tv_nsec =
1426 inode->i_ctime.tv_nsec = 0;
1427
1428 ei->i_first_extent = (isonum_733(de->extent) +
1429 isonum_711(de->ext_attr_length));
1430
1431
1432 inode->i_blocks = (inode->i_size + 511) >> 9;
1433
1434
1435
1436
1437
1438
1439 if (!high_sierra) {
1440 parse_rock_ridge_inode(de, inode, relocated);
1441
1442 if (sbi->s_uid_set)
1443 inode->i_uid = sbi->s_uid;
1444 if (sbi->s_gid_set)
1445 inode->i_gid = sbi->s_gid;
1446 }
1447
1448 if (S_ISDIR(inode->i_mode) && sbi->s_overriderockperm &&
1449 sbi->s_dmode != ISOFS_INVALID_MODE)
1450 inode->i_mode = S_IFDIR | sbi->s_dmode;
1451 if (S_ISREG(inode->i_mode) && sbi->s_overriderockperm &&
1452 sbi->s_fmode != ISOFS_INVALID_MODE)
1453 inode->i_mode = S_IFREG | sbi->s_fmode;
1454
1455
1456 if (S_ISREG(inode->i_mode)) {
1457 inode->i_fop = &generic_ro_fops;
1458 switch (ei->i_file_format) {
1459#ifdef CONFIG_ZISOFS
1460 case isofs_file_compressed:
1461 inode->i_data.a_ops = &zisofs_aops;
1462 break;
1463#endif
1464 default:
1465 inode->i_data.a_ops = &isofs_aops;
1466 break;
1467 }
1468 } else if (S_ISDIR(inode->i_mode)) {
1469 inode->i_op = &isofs_dir_inode_operations;
1470 inode->i_fop = &isofs_dir_operations;
1471 } else if (S_ISLNK(inode->i_mode)) {
1472 inode->i_op = &page_symlink_inode_operations;
1473 inode_nohighmem(inode);
1474 inode->i_data.a_ops = &isofs_symlink_aops;
1475 } else
1476
1477 init_special_inode(inode, inode->i_mode, inode->i_rdev);
1478
1479 ret = 0;
1480out:
1481 kfree(tmpde);
1482 if (bh)
1483 brelse(bh);
1484 return ret;
1485
1486out_badread:
1487 printk(KERN_WARNING "ISOFS: unable to read i-node block\n");
1488fail:
1489 goto out;
1490}
1491
1492struct isofs_iget5_callback_data {
1493 unsigned long block;
1494 unsigned long offset;
1495};
1496
1497static int isofs_iget5_test(struct inode *ino, void *data)
1498{
1499 struct iso_inode_info *i = ISOFS_I(ino);
1500 struct isofs_iget5_callback_data *d =
1501 (struct isofs_iget5_callback_data*)data;
1502 return (i->i_iget5_block == d->block)
1503 && (i->i_iget5_offset == d->offset);
1504}
1505
1506static int isofs_iget5_set(struct inode *ino, void *data)
1507{
1508 struct iso_inode_info *i = ISOFS_I(ino);
1509 struct isofs_iget5_callback_data *d =
1510 (struct isofs_iget5_callback_data*)data;
1511 i->i_iget5_block = d->block;
1512 i->i_iget5_offset = d->offset;
1513 return 0;
1514}
1515
1516
1517
1518
1519
1520struct inode *__isofs_iget(struct super_block *sb,
1521 unsigned long block,
1522 unsigned long offset,
1523 int relocated)
1524{
1525 unsigned long hashval;
1526 struct inode *inode;
1527 struct isofs_iget5_callback_data data;
1528 long ret;
1529
1530 if (offset >= 1ul << sb->s_blocksize_bits)
1531 return ERR_PTR(-EINVAL);
1532
1533 data.block = block;
1534 data.offset = offset;
1535
1536 hashval = (block << sb->s_blocksize_bits) | offset;
1537
1538 inode = iget5_locked(sb, hashval, &isofs_iget5_test,
1539 &isofs_iget5_set, &data);
1540
1541 if (!inode)
1542 return ERR_PTR(-ENOMEM);
1543
1544 if (inode->i_state & I_NEW) {
1545 ret = isofs_read_inode(inode, relocated);
1546 if (ret < 0) {
1547 iget_failed(inode);
1548 inode = ERR_PTR(ret);
1549 } else {
1550 unlock_new_inode(inode);
1551 }
1552 }
1553
1554 return inode;
1555}
1556
1557static struct dentry *isofs_mount(struct file_system_type *fs_type,
1558 int flags, const char *dev_name, void *data)
1559{
1560 return mount_bdev(fs_type, flags, dev_name, data, isofs_fill_super);
1561}
1562
1563static struct file_system_type iso9660_fs_type = {
1564 .owner = THIS_MODULE,
1565 .name = "iso9660",
1566 .mount = isofs_mount,
1567 .kill_sb = kill_block_super,
1568 .fs_flags = FS_REQUIRES_DEV,
1569};
1570MODULE_ALIAS_FS("iso9660");
1571MODULE_ALIAS("iso9660");
1572
1573static int __init init_iso9660_fs(void)
1574{
1575 int err = init_inodecache();
1576 if (err)
1577 goto out;
1578#ifdef CONFIG_ZISOFS
1579 err = zisofs_init();
1580 if (err)
1581 goto out1;
1582#endif
1583 err = register_filesystem(&iso9660_fs_type);
1584 if (err)
1585 goto out2;
1586 return 0;
1587out2:
1588#ifdef CONFIG_ZISOFS
1589 zisofs_cleanup();
1590out1:
1591#endif
1592 destroy_inodecache();
1593out:
1594 return err;
1595}
1596
1597static void __exit exit_iso9660_fs(void)
1598{
1599 unregister_filesystem(&iso9660_fs_type);
1600#ifdef CONFIG_ZISOFS
1601 zisofs_cleanup();
1602#endif
1603 destroy_inodecache();
1604}
1605
1606module_init(init_iso9660_fs)
1607module_exit(exit_iso9660_fs)
1608MODULE_LICENSE("GPL");
1609
