1 /* $NetBSD: cd9660.c,v 1.60 2023/12/28 12:13:55 tsutsui Exp $ */
2
3 /*
4 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
5 * Perez-Rathke and Ram Vedam. All rights reserved.
6 *
7 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
8 * Alan Perez-Rathke and Ram Vedam.
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer in the documentation and/or other materials provided
18 * with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
21 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24 * DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN
25 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
28 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
29 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
32 * OF SUCH DAMAGE.
33 */
34 /*
35 * Copyright (c) 2001 Wasabi Systems, Inc.
36 * All rights reserved.
37 *
38 * Written by Luke Mewburn for Wasabi Systems, Inc.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 * 3. All advertising materials mentioning features or use of this software
49 * must display the following acknowledgement:
50 * This product includes software developed for the NetBSD Project by
51 * Wasabi Systems, Inc.
52 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
53 * or promote products derived from this software without specific prior
54 * written permission.
55 *
56 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
57 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
58 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
59 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
60 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
61 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
62 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
63 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
64 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
65 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
66 * POSSIBILITY OF SUCH DAMAGE.
67 */
68 /*
69 * Copyright (c) 1982, 1986, 1989, 1993
70 * The Regents of the University of California. All rights reserved.
71 *
72 * Redistribution and use in source and binary forms, with or without
73 * modification, are permitted provided that the following conditions
74 * are met:
75 * 1. Redistributions of source code must retain the above copyright
76 * notice, this list of conditions and the following disclaimer.
77 * 2. Redistributions in binary form must reproduce the above copyright
78 * notice, this list of conditions and the following disclaimer in the
79 * documentation and/or other materials provided with the distribution.
80 * 3. Neither the name of the University nor the names of its contributors
81 * may be used to endorse or promote products derived from this software
82 * without specific prior written permission.
83 *
84 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
85 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
86 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
87 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
88 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
89 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
90 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
91 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
92 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
93 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
94 * SUCH DAMAGE.
95 *
96 */
97
98 #if HAVE_NBTOOL_CONFIG_H
99 #include "nbtool_config.h"
100 #else
101 #include <sys/mount.h>
102 #endif
103
104 #include <sys/cdefs.h>
105 #if defined(__RCSID) && !defined(__lint)
106 __RCSID("$NetBSD: cd9660.c,v 1.60 2023/12/28 12:13:55 tsutsui Exp $");
107 #endif /* !__lint */
108
109 #include <string.h>
110 #include <ctype.h>
111 #include <sys/param.h>
112 #include <sys/queue.h>
113 #include <util.h>
114
115 #include "makefs.h"
116 #include "cd9660.h"
117 #include "cd9660/iso9660_rrip.h"
118 #include "cd9660/cd9660_archimedes.h"
119
120 /*
121 * Global variables
122 */
123
124 static void cd9660_finalize_PVD(iso9660_disk *);
125 static cd9660node *cd9660_allocate_cd9660node(void);
126 static void cd9660_set_defaults(iso9660_disk *);
127 static int cd9660_arguments_set_string(const char *, const char *, size_t,
128 char, char *);
129 static void cd9660_populate_iso_dir_record(
130 struct _iso_directory_record_cd9660 *, u_char, u_char, u_char,
131 const char *);
132 static void cd9660_setup_root_node(iso9660_disk *);
133 static int cd9660_setup_volume_descriptors(iso9660_disk *);
134 #if 0
135 static int cd9660_fill_extended_attribute_record(cd9660node *);
136 #endif
137 static void cd9660_sort_nodes(cd9660node *);
138 static int cd9660_translate_node_common(iso9660_disk *, cd9660node *);
139 static int cd9660_translate_node(iso9660_disk *, fsnode *, cd9660node *);
140 static int cd9660_compare_filename(const char *, const char *);
141 static void cd9660_sorted_child_insert(cd9660node *, cd9660node *);
142 static int cd9660_handle_collisions(iso9660_disk *, cd9660node *, int);
143 static cd9660node *cd9660_rename_filename(iso9660_disk *, cd9660node *, int,
144 int);
145 static void cd9660_copy_filenames(iso9660_disk *, cd9660node *);
146 static void cd9660_sorting_nodes(cd9660node *);
147 static int cd9660_count_collisions(cd9660node *);
148 static cd9660node *cd9660_rrip_move_directory(iso9660_disk *, cd9660node *);
149 static int cd9660_add_dot_records(iso9660_disk *, cd9660node *);
150
151 static void cd9660_convert_structure(iso9660_disk *, fsnode *, cd9660node *, int,
152 int *, int *);
153 static void cd9660_free_structure(cd9660node *);
154 static int cd9660_generate_path_table(iso9660_disk *);
155 static int cd9660_level1_convert_filename(iso9660_disk *, const char *, char *,
156 int);
157 static int cd9660_level2_convert_filename(iso9660_disk *, const char *, char *,
158 int);
159 #if 0
160 static int cd9660_joliet_convert_filename(iso9660_disk *, const char *, char *,
161 int);
162 #endif
163 static int cd9660_convert_filename(iso9660_disk *, const char *, char *, int);
164 static void cd9660_populate_dot_records(iso9660_disk *, cd9660node *);
165 static int64_t cd9660_compute_offsets(iso9660_disk *, cd9660node *, int64_t);
166 #if 0
167 static int cd9660_copy_stat_info(cd9660node *, cd9660node *, int);
168 #endif
169 static cd9660node *cd9660_create_virtual_entry(iso9660_disk *, const char *,
170 cd9660node *, int, int);
171 static cd9660node *cd9660_create_file(iso9660_disk *, const char *,
172 cd9660node *, cd9660node *);
173 static cd9660node *cd9660_create_directory(iso9660_disk *, const char *,
174 cd9660node *, cd9660node *);
175 static cd9660node *cd9660_create_special_directory(iso9660_disk *, u_char,
176 cd9660node *);
177 static int cd9660_add_generic_bootimage(iso9660_disk *, const char *);
178
179
180 /*
181 * Allocate and initialize a cd9660node
182 * @returns struct cd9660node * Pointer to new node, or NULL on error
183 */
184 static cd9660node *
cd9660_allocate_cd9660node(void)185 cd9660_allocate_cd9660node(void)
186 {
187 cd9660node *temp = ecalloc(1, sizeof(*temp));
188 TAILQ_INIT(&temp->cn_children);
189 temp->parent = temp->dot_record = temp->dot_dot_record = NULL;
190 temp->ptnext = temp->ptprev = temp->ptlast = NULL;
191 temp->node = NULL;
192 temp->isoDirRecord = NULL;
193 temp->isoExtAttributes = NULL;
194 temp->rr_real_parent = temp->rr_relocated = NULL;
195 temp->su_tail_data = NULL;
196 return temp;
197 }
198
199 int cd9660_defaults_set = 0;
200
201 /**
202 * Set default values for cd9660 extension to makefs
203 */
204 static void
cd9660_set_defaults(iso9660_disk * diskStructure)205 cd9660_set_defaults(iso9660_disk *diskStructure)
206 {
207 /*Fix the sector size for now, though the spec allows for other sizes*/
208 diskStructure->sectorSize = 2048;
209
210 /* Set up defaults in our own structure */
211 diskStructure->verbose_level = 0;
212 diskStructure->keep_bad_images = 0;
213 diskStructure->follow_sym_links = 0;
214 diskStructure->isoLevel = 2;
215
216 diskStructure->rock_ridge_enabled = 0;
217 diskStructure->rock_ridge_renamed_dir_name = 0;
218 diskStructure->rock_ridge_move_count = 0;
219 diskStructure->rr_moved_dir = 0;
220
221 diskStructure->archimedes_enabled = 0;
222 diskStructure->chrp_boot = 0;
223
224 diskStructure->include_padding_areas = 1;
225
226 /* Spec breaking functionality */
227 diskStructure->allow_deep_trees =
228 diskStructure->allow_start_dot =
229 diskStructure->allow_max_name =
230 diskStructure->allow_illegal_chars =
231 diskStructure->allow_lowercase =
232 diskStructure->allow_multidot =
233 diskStructure->omit_trailing_period = 0;
234
235 /* Make sure the PVD is clear */
236 memset(&diskStructure->primaryDescriptor, 0, 2048);
237
238 memset(diskStructure->primaryDescriptor.publisher_id, 0x20,128);
239 memset(diskStructure->primaryDescriptor.preparer_id, 0x20,128);
240 memset(diskStructure->primaryDescriptor.application_id, 0x20,128);
241 memset(diskStructure->primaryDescriptor.copyright_file_id, 0x20,37);
242 memset(diskStructure->primaryDescriptor.abstract_file_id, 0x20,37);
243 memset(diskStructure->primaryDescriptor.bibliographic_file_id, 0x20,37);
244
245 strcpy(diskStructure->primaryDescriptor.system_id,"NetBSD");
246
247 cd9660_defaults_set = 1;
248
249 /* Boot support: Initially disabled */
250 diskStructure->has_generic_bootimage = 0;
251 diskStructure->generic_bootimage = NULL;
252
253 diskStructure->boot_image_directory = 0;
254 /*memset(diskStructure->boot_descriptor, 0, 2048);*/
255
256 diskStructure->is_bootable = 0;
257 TAILQ_INIT(&diskStructure->boot_images);
258 LIST_INIT(&diskStructure->boot_entries);
259 }
260
261 void
cd9660_prep_opts(fsinfo_t * fsopts)262 cd9660_prep_opts(fsinfo_t *fsopts)
263 {
264 iso9660_disk *diskStructure = ecalloc(1, sizeof(*diskStructure));
265
266 #define OPT_STR(letter, name, desc) \
267 { letter, name, NULL, OPT_STRBUF, 0, 0, desc }
268
269 #define OPT_NUM(letter, name, field, min, max, desc) \
270 { letter, name, &diskStructure->field, \
271 sizeof(diskStructure->field) == 8 ? OPT_INT64 : \
272 (sizeof(diskStructure->field) == 4 ? OPT_INT32 : \
273 (sizeof(diskStructure->field) == 2 ? OPT_INT16 : OPT_INT8)), \
274 min, max, desc }
275
276 #define OPT_BOOL(letter, name, field, desc) \
277 OPT_NUM(letter, name, field, 0, 1, desc)
278
279 const option_t cd9660_options[] = {
280 OPT_NUM('l', "isolevel", isoLevel,
281 1, 3, "ISO Level"),
282 OPT_NUM('v', "verbose", verbose_level,
283 0, 2, "Turns on verbose output"),
284
285 OPT_BOOL('h', "help", displayHelp,
286 "Show help message"),
287 OPT_BOOL('S', "follow-symlinks", follow_sym_links,
288 "Resolve symlinks in pathnames"),
289 OPT_BOOL('R', "rockridge", rock_ridge_enabled,
290 "Enable Rock-Ridge extensions"),
291 OPT_BOOL('C', "chrp-boot", chrp_boot,
292 "Enable CHRP boot"),
293 OPT_BOOL('K', "keep-bad-images", keep_bad_images,
294 "Keep bad images"),
295 OPT_BOOL('D', "allow-deep-trees", allow_deep_trees,
296 "Allow trees more than 8 levels"),
297 OPT_BOOL('a', "allow-max-name", allow_max_name,
298 "Allow 37 char filenames (unimplemented)"),
299 OPT_BOOL('i', "allow-illegal-chars", allow_illegal_chars,
300 "Allow illegal characters in filenames"),
301 OPT_BOOL('m', "allow-multidot", allow_multidot,
302 "Allow multiple periods in filenames"),
303 OPT_BOOL('o', "omit-trailing-period", omit_trailing_period,
304 "Omit trailing periods in filenames"),
305 OPT_BOOL('\0', "allow-lowercase", allow_lowercase,
306 "Allow lowercase characters in filenames"),
307 OPT_BOOL('\0', "archimedes", archimedes_enabled,
308 "Enable Archimedes structure"),
309 OPT_BOOL('\0', "no-trailing-padding", include_padding_areas,
310 "Include padding areas"),
311
312 OPT_STR('A', "applicationid", "Application Identifier"),
313 OPT_STR('P', "publisher", "Publisher Identifier"),
314 OPT_STR('p', "preparer", "Preparer Identifier"),
315 OPT_STR('L', "label", "Disk Label"),
316 OPT_STR('V', "volumeid", "Volume Set Identifier"),
317 OPT_STR('B', "bootimage", "Boot image parameter"),
318 OPT_STR('G', "generic-bootimage", "Generic boot image param"),
319 OPT_STR('\0', "bootimagedir", "Boot image directory"),
320 OPT_STR('\0', "no-emul-boot", "No boot emulation"),
321 OPT_STR('\0', "no-boot", "No boot support"),
322 OPT_STR('\0', "hard-disk-boot", "Boot from hard disk"),
323 OPT_STR('\0', "boot-load-segment", "Boot load segment"),
324 OPT_STR('\0', "platformid", "Section Header Platform ID"),
325
326 { .name = NULL }
327 };
328
329 fsopts->fs_specific = diskStructure;
330 fsopts->fs_options = copy_opts(cd9660_options);
331
332 cd9660_set_defaults(diskStructure);
333 }
334
335 void
cd9660_cleanup_opts(fsinfo_t * fsopts)336 cd9660_cleanup_opts(fsinfo_t *fsopts)
337 {
338 free(fsopts->fs_specific);
339 free(fsopts->fs_options);
340 }
341
342 static int
cd9660_arguments_set_string(const char * val,const char * fieldtitle,size_t length,char testmode,char * dest)343 cd9660_arguments_set_string(const char *val, const char *fieldtitle,
344 size_t length, char testmode, char * dest)
345 {
346 size_t len;
347 int test;
348
349 if (val == NULL)
350 warnx("error: The %s requires a string argument", fieldtitle);
351 else if ((len = strlen(val)) <= length) {
352 if (testmode == 'd')
353 test = cd9660_valid_d_chars(val);
354 else
355 test = cd9660_valid_a_chars(val);
356 if (test) {
357 memcpy(dest, val, len);
358 if (test == 2)
359 cd9660_uppercase_characters(dest, len);
360 return 1;
361 } else
362 warnx("error: The %s must be composed of "
363 "%c-characters", fieldtitle, testmode);
364 } else
365 warnx("error: The %s must be at most 32 characters long",
366 fieldtitle);
367 return 0;
368 }
369
370 /*
371 * Command-line parsing function
372 */
373
374 int
cd9660_parse_opts(const char * option,fsinfo_t * fsopts)375 cd9660_parse_opts(const char *option, fsinfo_t *fsopts)
376 {
377 int rv, i;
378 iso9660_disk *diskStructure = fsopts->fs_specific;
379 option_t *cd9660_options = fsopts->fs_options;
380 char buf[1024];
381 const char *name, *desc;
382
383 assert(option != NULL);
384
385 if (debug & DEBUG_FS_PARSE_OPTS)
386 printf("%s: got `%s'\n", __func__, option);
387
388 i = set_option(cd9660_options, option, buf, sizeof(buf));
389 if (i == -1)
390 return 0;
391
392 if (cd9660_options[i].name == NULL)
393 abort();
394
395
396 name = cd9660_options[i].name;
397 desc = cd9660_options[i].desc;
398 switch (cd9660_options[i].letter) {
399 case 'h':
400 case 'S':
401 rv = 0; /* this is not handled yet */
402 break;
403 case 'L':
404 rv = cd9660_arguments_set_string(buf, desc, 32, 'd',
405 diskStructure->primaryDescriptor.volume_id);
406 break;
407 case 'A':
408 rv = cd9660_arguments_set_string(buf, desc, 128, 'a',
409 diskStructure->primaryDescriptor.application_id);
410 break;
411 case 'P':
412 rv = cd9660_arguments_set_string(buf, desc, 128, 'a',
413 diskStructure->primaryDescriptor.publisher_id);
414 break;
415 case 'p':
416 rv = cd9660_arguments_set_string(buf, desc, 128, 'a',
417 diskStructure->primaryDescriptor.preparer_id);
418 break;
419 case 'V':
420 rv = cd9660_arguments_set_string(buf, desc, 128, 'a',
421 diskStructure->primaryDescriptor.volume_set_id);
422 break;
423 /* Boot options */
424 case 'B':
425 if (buf[0] == '\0') {
426 warnx("The Boot Image parameter requires a valid boot"
427 " information string");
428 rv = 0;
429 } else
430 rv = cd9660_add_boot_disk(diskStructure, buf);
431 break;
432 case 'G':
433 if (buf[0] == '\0') {
434 warnx("The Generic Boot Image parameter requires a"
435 " valid boot information string");
436 rv = 0;
437 } else
438 rv = cd9660_add_generic_bootimage(diskStructure, buf);
439 break;
440 default:
441 if (strcmp(name, "bootimagedir") == 0) {
442 /*
443 * XXXfvdl this is unused.
444 */
445 if (buf[0] == '\0') {
446 warnx("The Boot Image Directory parameter"
447 " requires a directory name");
448 rv = 0;
449 } else {
450 diskStructure->boot_image_directory =
451 emalloc(strlen(buf) + 1);
452 /* BIG TODO: Add the max length function here */
453 rv = cd9660_arguments_set_string(buf, desc, 12,
454 'd', diskStructure->boot_image_directory);
455 }
456 } else if (strcmp(name, "no-emul-boot") == 0 ||
457 strcmp(name, "no-boot") == 0 ||
458 strcmp(name, "hard-disk-boot") == 0) {
459 /* RRIP */
460 cd9660_eltorito_add_boot_option(diskStructure, name, 0);
461 rv = 1;
462 } else if (strcmp(name, "boot-load-segment") == 0 ||
463 strcmp(name, "platformid") == 0) {
464 if (buf[0] == '\0') {
465 warnx("Option `%s' doesn't contain a value",
466 name);
467 rv = 0;
468 } else {
469 cd9660_eltorito_add_boot_option(diskStructure,
470 name, buf);
471 rv = 1;
472 }
473 } else
474 rv = 1;
475 }
476 return rv;
477 }
478
479 /*
480 * Main function for cd9660_makefs
481 * Builds the ISO image file
482 * @param const char *image The image filename to create
483 * @param const char *dir The directory that is being read
484 * @param struct fsnode *root The root node of the filesystem tree
485 * @param struct fsinfo_t *fsopts Any options
486 */
487 void
cd9660_makefs(const char * image,const char * dir,fsnode * root,fsinfo_t * fsopts)488 cd9660_makefs(const char *image, const char *dir, fsnode *root,
489 fsinfo_t *fsopts)
490 {
491 int64_t startoffset;
492 int numDirectories;
493 uint64_t pathTableSectors;
494 int64_t firstAvailableSector;
495 int64_t totalSpace;
496 int error;
497 cd9660node *real_root;
498 iso9660_disk *diskStructure = fsopts->fs_specific;
499
500 if (diskStructure->verbose_level > 0)
501 printf("%s: ISO level is %i\n", __func__,
502 diskStructure->isoLevel);
503 if (diskStructure->isoLevel < 2 &&
504 diskStructure->allow_multidot)
505 errx(EXIT_FAILURE, "allow-multidot requires iso level of 2");
506
507 assert(image != NULL);
508 assert(dir != NULL);
509 assert(root != NULL);
510
511 if (diskStructure->displayHelp) {
512 /*
513 * Display help here - probably want to put it in
514 * a separate function
515 */
516 return;
517 }
518
519 if (diskStructure->verbose_level > 0)
520 printf("%s: image %s directory %s root %p\n", __func__,
521 image, dir, root);
522
523 /* Set up some constants. Later, these will be defined with options */
524
525 /* Counter needed for path tables */
526 numDirectories = 0;
527
528 /* Convert tree to our own format */
529 /* Actually, we now need to add the REAL root node, at level 0 */
530
531 real_root = cd9660_allocate_cd9660node();
532 real_root->isoDirRecord = emalloc(sizeof(*real_root->isoDirRecord));
533 /* Leave filename blank for root */
534 memset(real_root->isoDirRecord->name, 0,
535 ISO_FILENAME_MAXLENGTH_WITH_PADDING);
536
537 real_root->level = 0;
538 diskStructure->rootNode = real_root;
539 real_root->type = CD9660_TYPE_DIR;
540 error = 0;
541 real_root->node = root;
542 cd9660_convert_structure(diskStructure, root, real_root, 1,
543 &numDirectories, &error);
544
545 if (TAILQ_EMPTY(&real_root->cn_children)) {
546 errx(EXIT_FAILURE, "%s: converted directory is empty. "
547 "Tree conversion failed", __func__);
548 } else if (error != 0) {
549 errx(EXIT_FAILURE, "%s: tree conversion failed", __func__);
550 } else {
551 if (diskStructure->verbose_level > 0)
552 printf("%s: tree converted\n", __func__);
553 }
554
555 /* Add the dot and dot dot records */
556 cd9660_add_dot_records(diskStructure, real_root);
557
558 cd9660_setup_root_node(diskStructure);
559
560 if (diskStructure->verbose_level > 0)
561 printf("%s: done converting tree\n", __func__);
562
563 /* non-SUSP extensions */
564 if (diskStructure->archimedes_enabled)
565 archimedes_convert_tree(diskStructure->rootNode);
566
567 /* Rock ridge / SUSP init pass */
568 if (diskStructure->rock_ridge_enabled) {
569 cd9660_susp_initialize(diskStructure, diskStructure->rootNode,
570 diskStructure->rootNode, NULL);
571 }
572
573 /* Build path table structure */
574 diskStructure->pathTableLength = cd9660_generate_path_table(
575 diskStructure);
576
577 pathTableSectors = CD9660_BLOCKS(diskStructure->sectorSize,
578 diskStructure->pathTableLength);
579
580 firstAvailableSector = cd9660_setup_volume_descriptors(diskStructure);
581 if (diskStructure->is_bootable) {
582 firstAvailableSector = cd9660_setup_boot(diskStructure,
583 firstAvailableSector);
584 if (firstAvailableSector < 0)
585 errx(EXIT_FAILURE, "setup_boot failed");
586 }
587 /* LE first, then BE */
588 diskStructure->primaryLittleEndianTableSector = firstAvailableSector;
589 diskStructure->primaryBigEndianTableSector =
590 diskStructure->primaryLittleEndianTableSector + pathTableSectors;
591
592 /* Set the secondary ones to -1, not going to use them for now */
593 diskStructure->secondaryBigEndianTableSector = -1;
594 diskStructure->secondaryLittleEndianTableSector = -1;
595
596 diskStructure->dataFirstSector =
597 diskStructure->primaryBigEndianTableSector + pathTableSectors;
598 if (diskStructure->verbose_level > 0)
599 printf("%s: Path table conversion complete. "
600 "Each table is %i bytes, or %" PRIu64 " sectors.\n",
601 __func__,
602 diskStructure->pathTableLength, pathTableSectors);
603
604 startoffset = diskStructure->sectorSize*diskStructure->dataFirstSector;
605
606 totalSpace = cd9660_compute_offsets(diskStructure, real_root, startoffset);
607
608 diskStructure->totalSectors = diskStructure->dataFirstSector +
609 CD9660_BLOCKS(diskStructure->sectorSize, totalSpace);
610
611 /* Disabled until pass 1 is done */
612 if (diskStructure->rock_ridge_enabled) {
613 diskStructure->susp_continuation_area_start_sector =
614 diskStructure->totalSectors;
615 diskStructure->totalSectors +=
616 CD9660_BLOCKS(diskStructure->sectorSize,
617 diskStructure->susp_continuation_area_size);
618 cd9660_susp_finalize(diskStructure, diskStructure->rootNode);
619 }
620
621
622 cd9660_finalize_PVD(diskStructure);
623
624 /* Add padding sectors, just for testing purposes right now */
625 /* diskStructure->totalSectors+=150; */
626
627 /* Debugging output */
628 if (diskStructure->verbose_level > 0) {
629 printf("%s: Sectors 0-15 reserved\n", __func__);
630 printf("%s: Primary path tables starts in sector %"
631 PRId64 "\n", __func__,
632 diskStructure->primaryLittleEndianTableSector);
633 printf("%s: File data starts in sector %"
634 PRId64 "\n", __func__, diskStructure->dataFirstSector);
635 printf("%s: Total sectors: %"
636 PRId64 "\n", __func__, diskStructure->totalSectors);
637 }
638
639 /*
640 * Add padding sectors at the end
641 * TODO: Clean this up and separate padding
642 */
643 if (diskStructure->include_padding_areas)
644 diskStructure->totalSectors += 150;
645
646 cd9660_write_image(diskStructure, image);
647
648 if (diskStructure->verbose_level > 1) {
649 debug_print_volume_descriptor_information(diskStructure);
650 debug_print_tree(diskStructure, real_root, 0);
651 debug_print_path_tree(real_root);
652 }
653
654 /* Clean up data structures */
655 cd9660_free_structure(real_root);
656
657 if (diskStructure->verbose_level > 0)
658 printf("%s: done\n", __func__);
659 }
660
661 /* Generic function pointer - implement later */
662 typedef int (*cd9660node_func)(cd9660node *);
663
664 static void
cd9660_finalize_PVD(iso9660_disk * diskStructure)665 cd9660_finalize_PVD(iso9660_disk *diskStructure)
666 {
667 time_t tstamp = stampst.st_ino ? stampst.st_mtime : time(NULL);
668
669 /* root should be a fixed size of 34 bytes since it has no name */
670 memcpy(diskStructure->primaryDescriptor.root_directory_record,
671 diskStructure->rootNode->dot_record->isoDirRecord, 34);
672
673 /* In RRIP, this might be longer than 34 */
674 diskStructure->primaryDescriptor.root_directory_record[0] = 34;
675
676 /* Set up all the important numbers in the PVD */
677 cd9660_bothendian_dword(diskStructure->totalSectors,
678 (unsigned char *)diskStructure->primaryDescriptor.volume_space_size);
679 cd9660_bothendian_word(1,
680 (unsigned char *)diskStructure->primaryDescriptor.volume_set_size);
681 cd9660_bothendian_word(1,
682 (unsigned char *)
683 diskStructure->primaryDescriptor.volume_sequence_number);
684 cd9660_bothendian_word(diskStructure->sectorSize,
685 (unsigned char *)
686 diskStructure->primaryDescriptor.logical_block_size);
687 cd9660_bothendian_dword(diskStructure->pathTableLength,
688 (unsigned char *)diskStructure->primaryDescriptor.path_table_size);
689
690 cd9660_731(diskStructure->primaryLittleEndianTableSector,
691 (u_char *)diskStructure->primaryDescriptor.type_l_path_table);
692 cd9660_732(diskStructure->primaryBigEndianTableSector,
693 (u_char *)diskStructure->primaryDescriptor.type_m_path_table);
694
695 diskStructure->primaryDescriptor.file_structure_version[0] = 1;
696
697 /* Pad all strings with spaces instead of nulls */
698 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.volume_id, 32);
699 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.system_id, 32);
700 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.volume_set_id,
701 128);
702 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.publisher_id,
703 128);
704 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.preparer_id,
705 128);
706 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.application_id,
707 128);
708 cd9660_pad_string_spaces(
709 diskStructure->primaryDescriptor.copyright_file_id, 37);
710 cd9660_pad_string_spaces(
711 diskStructure->primaryDescriptor.abstract_file_id, 37);
712 cd9660_pad_string_spaces(
713 diskStructure->primaryDescriptor.bibliographic_file_id, 37);
714
715 /* Setup dates */
716 cd9660_time_8426(
717 (unsigned char *)diskStructure->primaryDescriptor.creation_date,
718 tstamp);
719 cd9660_time_8426(
720 (unsigned char *)diskStructure->primaryDescriptor.modification_date,
721 tstamp);
722
723 #if 0
724 cd9660_set_date(diskStructure->primaryDescriptor.expiration_date,
725 tstamp);
726 #endif
727 memset(diskStructure->primaryDescriptor.expiration_date, '0' ,16);
728 diskStructure->primaryDescriptor.expiration_date[16] = 0;
729
730 cd9660_time_8426(
731 (unsigned char *)diskStructure->primaryDescriptor.effective_date,
732 tstamp);
733 }
734
735 static void
cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 * record,u_char ext_attr_length,u_char flags,u_char name_len,const char * name)736 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record,
737 u_char ext_attr_length, u_char flags,
738 u_char name_len, const char * name)
739 {
740 time_t tstamp = stampst.st_ino ? stampst.st_mtime : time(NULL);
741
742 record->ext_attr_length[0] = ext_attr_length;
743 cd9660_time_915(record->date, tstamp);
744 record->flags[0] = ISO_FLAG_CLEAR | flags;
745 record->file_unit_size[0] = 0;
746 record->interleave[0] = 0;
747 cd9660_bothendian_word(1, record->volume_sequence_number);
748 record->name_len[0] = name_len;
749 memset(record->name, '\0', sizeof (record->name));
750 memcpy(record->name, name, name_len);
751 record->length[0] = 33 + name_len;
752
753 /* Todo : better rounding */
754 record->length[0] += (record->length[0] & 1) ? 1 : 0;
755 }
756
757 static void
cd9660_setup_root_node(iso9660_disk * diskStructure)758 cd9660_setup_root_node(iso9660_disk *diskStructure)
759 {
760 cd9660_populate_iso_dir_record(diskStructure->rootNode->isoDirRecord,
761 0, ISO_FLAG_DIRECTORY, 1, "\0");
762
763 }
764
765 /*********** SUPPORT FUNCTIONS ***********/
766 static int
cd9660_setup_volume_descriptors(iso9660_disk * diskStructure)767 cd9660_setup_volume_descriptors(iso9660_disk *diskStructure)
768 {
769 /* Boot volume descriptor should come second */
770 int sector = 16;
771 /* For now, a fixed 2 : PVD and terminator */
772 volume_descriptor *temp, *t;
773
774 /* Set up the PVD */
775 temp = emalloc(sizeof(*temp));
776 temp->volumeDescriptorData =
777 (unsigned char *)&diskStructure->primaryDescriptor;
778 temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD;
779 temp->volumeDescriptorData[6] = 1;
780 temp->sector = sector;
781 memcpy(temp->volumeDescriptorData + 1,
782 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
783 diskStructure->firstVolumeDescriptor = temp;
784
785 sector++;
786 /* Set up boot support if enabled. BVD must reside in sector 17 */
787 if (diskStructure->is_bootable) {
788 t = emalloc(sizeof(*t));
789 t->volumeDescriptorData = ecalloc(1, 2048);
790 temp->next = t;
791 temp = t;
792 t->sector = 17;
793 if (diskStructure->verbose_level > 0)
794 printf("Setting up boot volume descriptor\n");
795 cd9660_setup_boot_volume_descriptor(diskStructure, t);
796 sector++;
797 }
798
799 /* Set up the terminator */
800 t = emalloc(sizeof(*t));
801 t->volumeDescriptorData = ecalloc(1, 2048);
802 temp->next = t;
803 t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR;
804 t->next = 0;
805 t->volumeDescriptorData[6] = 1;
806 t->sector = sector;
807 memcpy(t->volumeDescriptorData + 1,
808 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
809
810 sector++;
811 return sector;
812 }
813
814 #if 0
815 /*
816 * Populate EAR at some point. Not required, but is used by NetBSD's
817 * cd9660 support
818 */
819 static int
820 cd9660_fill_extended_attribute_record(cd9660node *node)
821 {
822 node->isoExtAttributes = emalloc(sizeof(*node->isoExtAttributes));
823 return 1;
824 }
825 #endif
826
827 static int
cd9660_translate_node_common(iso9660_disk * diskStructure,cd9660node * newnode)828 cd9660_translate_node_common(iso9660_disk *diskStructure, cd9660node *newnode)
829 {
830 u_char flag;
831 char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING];
832
833 /* Now populate the isoDirRecord structure */
834 memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
835
836 (void)cd9660_convert_filename(diskStructure, newnode->node->name,
837 temp, !(S_ISDIR(newnode->node->type)));
838
839 flag = ISO_FLAG_CLEAR;
840 if (S_ISDIR(newnode->node->type))
841 flag |= ISO_FLAG_DIRECTORY;
842
843 cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0,
844 flag, strlen(temp), temp);
845
846 cd9660_bothendian_dword(newnode->fileDataLength,
847 newnode->isoDirRecord->size);
848 /* If the file is a link, we want to set the size to 0 */
849 if (S_ISLNK(newnode->node->type))
850 newnode->fileDataLength = 0;
851
852 return 1;
853 }
854
855 /*
856 * Translate fsnode to cd9660node
857 * Translate filenames and other metadata, including dates, sizes,
858 * permissions, etc
859 * @param struct fsnode * The node generated by makefs
860 * @param struct cd9660node * The intermediate node to be written to
861 * @returns int 0 on failure, 1 on success
862 */
863 static int
cd9660_translate_node(iso9660_disk * diskStructure,fsnode * node,cd9660node * newnode)864 cd9660_translate_node(iso9660_disk *diskStructure, fsnode *node,
865 cd9660node *newnode)
866 {
867 if (node == NULL) {
868 if (diskStructure->verbose_level > 0)
869 printf("%s: NULL node passed, returning\n", __func__);
870 return 0;
871 }
872 newnode->isoDirRecord = emalloc(sizeof(*newnode->isoDirRecord));
873 /* Set the node pointer */
874 newnode->node = node;
875
876 /* Set the size */
877 if (!(S_ISDIR(node->type)))
878 newnode->fileDataLength = node->inode->st.st_size;
879
880 if (cd9660_translate_node_common(diskStructure, newnode) == 0)
881 return 0;
882
883 /* Finally, overwrite some of the values that are set by default */
884 cd9660_time_915(newnode->isoDirRecord->date,
885 stampst.st_ino ? stampst.st_mtime : node->inode->st.st_mtime);
886
887 return 1;
888 }
889
890 /*
891 * Compares two ISO filenames
892 * @param const char * The first file name
893 * @param const char * The second file name
894 * @returns : -1 if first is less than second, 0 if they are the same, 1 if
895 * the second is greater than the first
896 */
897 static int
cd9660_compare_filename(const char * first,const char * second)898 cd9660_compare_filename(const char *first, const char *second)
899 {
900 /*
901 * This can be made more optimal once it has been tested
902 * (the extra character, for example, is for testing)
903 */
904
905 int p1 = 0;
906 int p2 = 0;
907 char c1, c2;
908 /* First, on the filename */
909
910 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1
911 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) {
912 c1 = first[p1];
913 c2 = second[p2];
914 if (c1 == '.' && c2 =='.')
915 break;
916 else if (c1 == '.') {
917 p2++;
918 c1 = ' ';
919 } else if (c2 == '.') {
920 p1++;
921 c2 = ' ';
922 } else {
923 p1++;
924 p2++;
925 }
926
927 if (c1 < c2)
928 return -1;
929 else if (c1 > c2) {
930 return 1;
931 }
932 }
933
934 if (first[p1] == '.' && second[p2] == '.') {
935 p1++;
936 p2++;
937 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1
938 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) {
939 c1 = first[p1];
940 c2 = second[p2];
941 if (c1 == ';' && c2 == ';')
942 break;
943 else if (c1 == ';') {
944 p2++;
945 c1 = ' ';
946 } else if (c2 == ';') {
947 p1++;
948 c2 = ' ';
949 } else {
950 p1++;
951 p2++;
952 }
953
954 if (c1 < c2)
955 return -1;
956 else if (c1 > c2)
957 return 1;
958 }
959 }
960 return 0;
961 }
962
963 /*
964 * Insert a node into list with ISO sorting rules
965 * @param cd9660node * The head node of the list
966 * @param cd9660node * The node to be inserted
967 */
968 static void
cd9660_sorted_child_insert(cd9660node * parent,cd9660node * cn_new)969 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new)
970 {
971 int compare;
972 cd9660node *cn;
973 struct cd9660_children_head *head = &parent->cn_children;
974
975 /* TODO: Optimize? */
976 cn_new->parent = parent;
977
978 /*
979 * first will either be 0, the . or the ..
980 * if . or .., this means no other entry may be written before first
981 * if 0, the new node may be inserted at the head
982 */
983
984 TAILQ_FOREACH(cn, head, cn_next_child) {
985 /*
986 * Dont insert a node twice -
987 * that would cause an infinite loop
988 */
989 if (cn_new == cn)
990 return;
991
992 compare = cd9660_compare_filename(cn_new->isoDirRecord->name,
993 cn->isoDirRecord->name);
994
995 if (compare == 0)
996 compare = cd9660_compare_filename(cn_new->node->name,
997 cn->node->name);
998
999 if (compare < 0)
1000 break;
1001 }
1002 if (cn == NULL)
1003 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child);
1004 else
1005 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child);
1006 }
1007
1008 /*
1009 * Called After cd9660_sorted_child_insert
1010 * handles file collisions by suffixing each filename with ~n
1011 * where n represents the files respective place in the ordering
1012 */
1013 static int
cd9660_handle_collisions(iso9660_disk * diskStructure,cd9660node * colliding,int past)1014 cd9660_handle_collisions(iso9660_disk *diskStructure, cd9660node *colliding,
1015 int past)
1016 {
1017 cd9660node *iter, *next, *prev;
1018 int skip;
1019 int delete_chars = 0;
1020 int temp_past = past;
1021 int temp_skip;
1022 int flag = 0;
1023 cd9660node *end_of_range;
1024
1025 for (iter = TAILQ_FIRST(&colliding->cn_children);
1026 iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) {
1027 if (strcmp(iter->isoDirRecord->name,
1028 next->isoDirRecord->name) != 0) {
1029 iter = TAILQ_NEXT(iter, cn_next_child);
1030 continue;
1031 }
1032 flag = 1;
1033 temp_skip = skip = cd9660_count_collisions(iter);
1034 end_of_range = iter;
1035 while (temp_skip > 0) {
1036 temp_skip--;
1037 end_of_range = TAILQ_NEXT(end_of_range, cn_next_child);
1038 }
1039 temp_past = past;
1040 while (temp_past > 0) {
1041 if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL)
1042 end_of_range = next;
1043 else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL)
1044 iter = prev;
1045 else
1046 delete_chars++;
1047 temp_past--;
1048 }
1049 skip += past;
1050 iter = cd9660_rename_filename(diskStructure, iter, skip,
1051 delete_chars);
1052 }
1053 return flag;
1054 }
1055
1056
1057 static cd9660node *
cd9660_rename_filename(iso9660_disk * diskStructure,cd9660node * iter,int num,int delete_chars)1058 cd9660_rename_filename(iso9660_disk *diskStructure, cd9660node *iter, int num,
1059 int delete_chars)
1060 {
1061 int i = 0;
1062 int numbts, dot, semi, digit, digits, temp, powers, multiplier, count;
1063 char *naming;
1064 int maxlength;
1065 char *tmp;
1066
1067 if (diskStructure->verbose_level > 0)
1068 printf("Rename_filename called\n");
1069
1070 /* TODO : A LOT of chanes regarding 8.3 filenames */
1071 if (diskStructure->isoLevel == 1)
1072 maxlength = 8;
1073 else if (diskStructure->isoLevel == 2)
1074 maxlength = 31;
1075 else
1076 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION;
1077
1078 tmp = emalloc(ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1079
1080 while (i < num && iter) {
1081 powers = 1;
1082 count = 0;
1083 digits = 1;
1084 multiplier = 1;
1085 while (((int)(i / powers) ) >= 10) {
1086 digits++;
1087 powers = powers * 10;
1088 }
1089
1090 naming = iter->o_name;
1091
1092 /*
1093 while ((*naming != '.') && (*naming != ';')) {
1094 naming++;
1095 count++;
1096 }
1097 */
1098
1099 dot = -1;
1100 semi = -1;
1101 while (count < maxlength) {
1102 if (*naming == '.')
1103 dot = count;
1104 else if (*naming == ';') {
1105 semi = count;
1106 break;
1107 }
1108 naming++;
1109 count++;
1110 }
1111
1112 if ((count + digits) < maxlength)
1113 numbts = count;
1114 else
1115 numbts = maxlength - (digits);
1116 numbts -= delete_chars;
1117
1118 /* 8.3 rules - keep the extension, add before the dot */
1119
1120 /*
1121 * This code makes a bunch of assumptions.
1122 * See if you can spot them all :)
1123 */
1124
1125 #if 0
1126 if (diskStructure->isoLevel == 1) {
1127 numbts = 8 - digits - delete_chars;
1128 if (dot < 0) {
1129
1130 } else {
1131 if (dot < 8) {
1132 memmove(&tmp[numbts],&tmp[dot],4);
1133 }
1134 }
1135 }
1136 #else
1137 __USE(dot);
1138 __USE(semi);
1139 __USE(multiplier);
1140 #endif
1141
1142 /* (copying just the filename before the '.' */
1143 memcpy(tmp, (iter->o_name), numbts);
1144
1145 /* adding the appropriate number following the name */
1146 temp = i;
1147 while (digits > 0) {
1148 digit = (int)(temp / powers);
1149 temp = temp - digit * powers;
1150 sprintf(&tmp[numbts] , "%d", digit);
1151 digits--;
1152 numbts++;
1153 powers = powers / 10;
1154 }
1155
1156 while ((*naming != ';') && (numbts < maxlength)) {
1157 tmp[numbts] = (*naming);
1158 naming++;
1159 numbts++;
1160 }
1161
1162 tmp[numbts] = ';';
1163 tmp[numbts+1] = '1';
1164 tmp[numbts+2] = '\0';
1165
1166 /*
1167 * now tmp has exactly the identifier
1168 * we want so we'll copy it back to record
1169 */
1170 memcpy((iter->isoDirRecord->name), tmp, numbts + 3);
1171
1172 iter = TAILQ_NEXT(iter, cn_next_child);
1173 i++;
1174 }
1175
1176 free(tmp);
1177 return iter;
1178 }
1179
1180 /* Todo: Figure out why these functions are nec. */
1181 static void
cd9660_copy_filenames(iso9660_disk * diskStructure,cd9660node * node)1182 cd9660_copy_filenames(iso9660_disk *diskStructure, cd9660node *node)
1183 {
1184 cd9660node *cn;
1185
1186 if (TAILQ_EMPTY(&node->cn_children))
1187 return;
1188
1189 if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) {
1190 debug_print_tree(diskStructure, diskStructure->rootNode, 0);
1191 exit(EXIT_FAILURE);
1192 }
1193
1194 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1195 cd9660_copy_filenames(diskStructure, cn);
1196 memcpy(cn->o_name, cn->isoDirRecord->name,
1197 ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1198 }
1199 }
1200
1201 static void
cd9660_sorting_nodes(cd9660node * node)1202 cd9660_sorting_nodes(cd9660node *node)
1203 {
1204 cd9660node *cn;
1205
1206 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child)
1207 cd9660_sorting_nodes(cn);
1208 cd9660_sort_nodes(node);
1209 }
1210
1211 /* XXX Bubble sort. */
1212 static void
cd9660_sort_nodes(cd9660node * node)1213 cd9660_sort_nodes(cd9660node *node)
1214 {
1215 cd9660node *cn, *next;
1216
1217 do {
1218 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1219 if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL)
1220 return;
1221 else if (strcmp(next->isoDirRecord->name,
1222 cn->isoDirRecord->name) >= 0)
1223 continue;
1224 TAILQ_REMOVE(&node->cn_children, next, cn_next_child);
1225 TAILQ_INSERT_BEFORE(cn, next, cn_next_child);
1226 break;
1227 }
1228 } while (cn != NULL);
1229 }
1230
1231 static int
cd9660_count_collisions(cd9660node * copy)1232 cd9660_count_collisions(cd9660node *copy)
1233 {
1234 int count = 0;
1235 cd9660node *iter, *next;
1236
1237 for (iter = copy;
1238 (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;
1239 iter = next) {
1240 if (cd9660_compare_filename(iter->isoDirRecord->name,
1241 next->isoDirRecord->name) == 0)
1242 count++;
1243 else
1244 return count;
1245 }
1246 #if 0
1247 if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) {
1248 printf("%s: count is %i \n", __func__, count);
1249 compare = cd9660_compare_filename(iter->isoDirRecord->name,
1250 next->isoDirRecord->name);
1251 if (compare == 0) {
1252 count++;
1253 return cd9660_recurse_on_collision(next, count);
1254 } else
1255 return count;
1256 }
1257 #endif
1258 return count;
1259 }
1260
1261 static cd9660node *
cd9660_rrip_move_directory(iso9660_disk * diskStructure,cd9660node * dir)1262 cd9660_rrip_move_directory(iso9660_disk *diskStructure, cd9660node *dir)
1263 {
1264 char newname[9];
1265 cd9660node *tfile;
1266
1267 /*
1268 * This function needs to:
1269 * 1) Create an empty virtual file in place of the old directory
1270 * 2) Point the virtual file to the new directory
1271 * 3) Point the relocated directory to its old parent
1272 * 4) Move the directory specified by dir into rr_moved_dir,
1273 * and rename it to "diskStructure->rock_ridge_move_count" (as a string)
1274 */
1275
1276 /* First see if the moved directory even exists */
1277 if (diskStructure->rr_moved_dir == NULL) {
1278 diskStructure->rr_moved_dir = cd9660_create_directory(
1279 diskStructure, ISO_RRIP_DEFAULT_MOVE_DIR_NAME,
1280 diskStructure->rootNode, dir);
1281 if (diskStructure->rr_moved_dir == NULL)
1282 return 0;
1283 cd9660_time_915(diskStructure->rr_moved_dir->isoDirRecord->date,
1284 stampst.st_ino ? stampst.st_mtime : start_time.tv_sec);
1285 }
1286
1287 /* Create a file with the same ORIGINAL name */
1288 tfile = cd9660_create_file(diskStructure, dir->node->name, dir->parent,
1289 dir);
1290 if (tfile == NULL)
1291 return NULL;
1292
1293 diskStructure->rock_ridge_move_count++;
1294 snprintf(newname, sizeof(newname), "%08u",
1295 diskStructure->rock_ridge_move_count);
1296
1297 /* Point to old parent */
1298 dir->rr_real_parent = dir->parent;
1299
1300 /* Place the placeholder file */
1301 if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) {
1302 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile,
1303 cn_next_child);
1304 } else {
1305 cd9660_sorted_child_insert(dir->rr_real_parent, tfile);
1306 }
1307
1308 /* Point to new parent */
1309 dir->parent = diskStructure->rr_moved_dir;
1310
1311 /* Point the file to the moved directory */
1312 tfile->rr_relocated = dir;
1313
1314 /* Actually move the directory */
1315 cd9660_sorted_child_insert(diskStructure->rr_moved_dir, dir);
1316
1317 /* TODO: Inherit permissions / ownership (basically the entire inode) */
1318
1319 /* Set the new name */
1320 memset(dir->isoDirRecord->name, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1321 strncpy(dir->isoDirRecord->name, newname, 8);
1322 dir->isoDirRecord->length[0] = 34 + 8;
1323 dir->isoDirRecord->name_len[0] = 8;
1324
1325 return dir;
1326 }
1327
1328 static int
cd9660_add_dot_records(iso9660_disk * diskStructure,cd9660node * root)1329 cd9660_add_dot_records(iso9660_disk *diskStructure, cd9660node *root)
1330 {
1331 struct cd9660_children_head *head = &root->cn_children;
1332 cd9660node *cn;
1333
1334 TAILQ_FOREACH(cn, head, cn_next_child) {
1335 if ((cn->type & CD9660_TYPE_DIR) == 0)
1336 continue;
1337 /* Recursion first */
1338 cd9660_add_dot_records(diskStructure, cn);
1339 }
1340 cd9660_create_special_directory(diskStructure, CD9660_TYPE_DOT, root);
1341 cd9660_create_special_directory(diskStructure, CD9660_TYPE_DOTDOT,
1342 root);
1343 return 1;
1344 }
1345
1346 /*
1347 * Convert node to cd9660 structure
1348 * This function is designed to be called recursively on the root node of
1349 * the filesystem
1350 * Lots of recursion going on here, want to make sure it is efficient
1351 * @param struct fsnode * The root node to be converted
1352 * @param struct cd9660* The parent node (should not be NULL)
1353 * @param int Current directory depth
1354 * @param int* Running count of the number of directories that are being created
1355 */
1356 static void
cd9660_convert_structure(iso9660_disk * diskStructure,fsnode * root,cd9660node * parent_node,int level,int * numDirectories,int * error)1357 cd9660_convert_structure(iso9660_disk *diskStructure, fsnode *root,
1358 cd9660node *parent_node, int level, int *numDirectories, int *error)
1359 {
1360 fsnode *iterator = root;
1361 cd9660node *this_node;
1362 int working_level;
1363 int add;
1364 int flag = 0;
1365 int counter = 0;
1366
1367 /*
1368 * Newer, more efficient method, reduces recursion depth
1369 */
1370 if (root == NULL) {
1371 warnx("%s: root is null", __func__);
1372 return;
1373 }
1374
1375 /* Test for an empty directory - makefs still gives us the . record */
1376 if ((S_ISDIR(root->type)) && (root->name[0] == '.')
1377 && (root->name[1] == '\0')) {
1378 root = root->next;
1379 if (root == NULL)
1380 return;
1381 }
1382 if ((this_node = cd9660_allocate_cd9660node()) == NULL) {
1383 CD9660_MEM_ALLOC_ERROR(__func__);
1384 }
1385
1386 /*
1387 * To reduce the number of recursive calls, we will iterate over
1388 * the next pointers to the right.
1389 */
1390 while (iterator != NULL) {
1391 add = 1;
1392 /*
1393 * Increment the directory count if this is a directory
1394 * Ignore "." entries. We will generate them later
1395 */
1396 if (!S_ISDIR(iterator->type) ||
1397 strcmp(iterator->name, ".") != 0) {
1398
1399 /* Translate the node, including its filename */
1400 this_node->parent = parent_node;
1401 cd9660_translate_node(diskStructure, iterator,
1402 this_node);
1403 this_node->level = level;
1404
1405 if (S_ISDIR(iterator->type)) {
1406 (*numDirectories)++;
1407 this_node->type = CD9660_TYPE_DIR;
1408 working_level = level + 1;
1409
1410 /*
1411 * If at level 8, directory would be at 8
1412 * and have children at 9 which is not
1413 * allowed as per ISO spec
1414 */
1415 if (level == 8) {
1416 if ((!diskStructure->allow_deep_trees) &&
1417 (!diskStructure->rock_ridge_enabled)) {
1418 warnx("error: found entry "
1419 "with depth greater "
1420 "than 8.");
1421 (*error) = 1;
1422 return;
1423 } else if (diskStructure->
1424 rock_ridge_enabled) {
1425 working_level = 3;
1426 /*
1427 * Moved directory is actually
1428 * at level 2.
1429 */
1430 this_node->level =
1431 working_level - 1;
1432 if (cd9660_rrip_move_directory(
1433 diskStructure,
1434 this_node) == 0) {
1435 warnx("Failure in "
1436 "cd9660_rrip_"
1437 "move_directory"
1438 );
1439 (*error) = 1;
1440 return;
1441 }
1442 add = 0;
1443 }
1444 }
1445
1446 /* Do the recursive call on the children */
1447 if (iterator->child != 0) {
1448 cd9660_convert_structure(diskStructure,
1449 iterator->child, this_node,
1450 working_level,
1451 numDirectories, error);
1452
1453 if ((*error) == 1) {
1454 warnx("%s: Error on recursive "
1455 "call", __func__);
1456 return;
1457 }
1458 }
1459
1460 } else {
1461 /* Only directories should have children */
1462 assert(iterator->child == NULL);
1463
1464 this_node->type = CD9660_TYPE_FILE;
1465 }
1466
1467 /*
1468 * Finally, do a sorted insert
1469 */
1470 if (add) {
1471 cd9660_sorted_child_insert(
1472 parent_node, this_node);
1473 }
1474
1475 /*Allocate new temp_node */
1476 if (iterator->next != 0) {
1477 this_node = cd9660_allocate_cd9660node();
1478 if (this_node == NULL)
1479 CD9660_MEM_ALLOC_ERROR(__func__);
1480 }
1481 }
1482 iterator = iterator->next;
1483 }
1484
1485 /* cd9660_handle_collisions(first_node); */
1486
1487 /* TODO: need cleanup */
1488 cd9660_copy_filenames(diskStructure, parent_node);
1489
1490 do {
1491 flag = cd9660_handle_collisions(diskStructure, parent_node,
1492 counter);
1493 counter++;
1494 cd9660_sorting_nodes(parent_node);
1495 } while ((flag == 1) && (counter < 100));
1496 }
1497
1498 /*
1499 * Clean up the cd9660node tree
1500 * This is designed to be called recursively on the root node
1501 * @param struct cd9660node *root The node to free
1502 * @returns void
1503 */
1504 static void
cd9660_free_structure(cd9660node * root)1505 cd9660_free_structure(cd9660node *root)
1506 {
1507 cd9660node *cn;
1508
1509 while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) {
1510 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child);
1511 cd9660_free_structure(cn);
1512 }
1513 free(root);
1514 }
1515
1516 /*
1517 * Be a little more memory conservative:
1518 * instead of having the TAILQ_ENTRY as part of the cd9660node,
1519 * just create a temporary structure
1520 */
1521 struct ptq_entry
1522 {
1523 TAILQ_ENTRY(ptq_entry) ptq;
1524 cd9660node *node;
1525 } *n;
1526
1527 #define PTQUEUE_NEW(n,s,r,t){\
1528 n = emalloc(sizeof(struct s)); \
1529 if (n == NULL) \
1530 return r; \
1531 n->node = t;\
1532 }
1533
1534 /*
1535 * Generate the path tables
1536 * The specific implementation of this function is left as an exercise to the
1537 * programmer. It could be done recursively. Make sure you read how the path
1538 * table has to be laid out, it has levels.
1539 * @param struct iso9660_disk *disk The disk image
1540 * @returns int The number of built path tables (between 1 and 4), 0 on failure
1541 */
1542 static int
cd9660_generate_path_table(iso9660_disk * diskStructure)1543 cd9660_generate_path_table(iso9660_disk *diskStructure)
1544 {
1545 cd9660node *cn, *dirNode = diskStructure->rootNode;
1546 cd9660node *last = dirNode;
1547 int pathTableSize = 0; /* computed as we go */
1548 int counter = 1; /* root gets a count of 0 */
1549
1550 TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head;
1551 TAILQ_INIT(&pt_head);
1552
1553 PTQUEUE_NEW(n, ptq_entry, -1, diskStructure->rootNode);
1554
1555 /* Push the root node */
1556 TAILQ_INSERT_HEAD(&pt_head, n, ptq);
1557
1558 /* Breadth-first traversal of file structure */
1559 while (pt_head.tqh_first != 0) {
1560 n = pt_head.tqh_first;
1561 dirNode = n->node;
1562 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq);
1563 free(n);
1564
1565 /* Update the size */
1566 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE
1567 + dirNode->isoDirRecord->name_len[0]+
1568 (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1);
1569 /* includes the padding bit */
1570
1571 dirNode->ptnumber=counter;
1572 if (dirNode != last) {
1573 last->ptnext = dirNode;
1574 dirNode->ptprev = last;
1575 }
1576 last = dirNode;
1577
1578 /* Push children onto queue */
1579 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) {
1580 /*
1581 * Dont add the DOT and DOTDOT types to the path
1582 * table.
1583 */
1584 if ((cn->type != CD9660_TYPE_DOT)
1585 && (cn->type != CD9660_TYPE_DOTDOT)) {
1586
1587 if (S_ISDIR(cn->node->type)) {
1588 PTQUEUE_NEW(n, ptq_entry, -1, cn);
1589 TAILQ_INSERT_TAIL(&pt_head, n, ptq);
1590 }
1591 }
1592 }
1593 counter++;
1594 }
1595 return pathTableSize;
1596 }
1597
1598 void
cd9660_compute_full_filename(cd9660node * node,char * buf)1599 cd9660_compute_full_filename(cd9660node *node, char *buf)
1600 {
1601 int len;
1602
1603 len = CD9660MAXPATH + 1;
1604 len = snprintf(buf, len, "%s/%s/%s", node->node->root,
1605 node->node->path, node->node->name);
1606 if (len > CD9660MAXPATH)
1607 errx(EXIT_FAILURE, "Pathname too long.");
1608 }
1609
1610 /* NEW filename conversion method */
1611 typedef int(*cd9660_filename_conversion_functor)(iso9660_disk *, const char *,
1612 char *, int);
1613
1614
1615 /*
1616 * TODO: These two functions are almost identical.
1617 * Some code cleanup is possible here
1618 *
1619 * XXX bounds checking!
1620 */
1621 static int
cd9660_level1_convert_filename(iso9660_disk * diskStructure,const char * oldname,char * newname,int is_file)1622 cd9660_level1_convert_filename(iso9660_disk *diskStructure, const char *oldname,
1623 char *newname, int is_file)
1624 {
1625 /*
1626 * ISO 9660 : 10.1
1627 * File Name shall not contain more than 8 d or d1 characters
1628 * File Name Extension shall not contain more than 3 d or d1 characters
1629 * Directory Identifier shall not contain more than 8 d or d1 characters
1630 */
1631 int namelen = 0;
1632 int extlen = 0;
1633 int found_ext = 0;
1634
1635 while (*oldname != '\0' && extlen < 3) {
1636 /* Handle period first, as it is special */
1637 if (*oldname == '.') {
1638 if (found_ext) {
1639 *newname++ = '_';
1640 extlen ++;
1641 }
1642 else {
1643 *newname++ = '.';
1644 found_ext = 1;
1645 }
1646 } else {
1647 /* cut RISC OS file type off ISO name */
1648 if (diskStructure->archimedes_enabled &&
1649 *oldname == ',' && strlen(oldname) == 4)
1650 break;
1651
1652 /* Enforce 12.3 / 8 */
1653 if (namelen == 8 && !found_ext)
1654 break;
1655
1656 if (islower((unsigned char)*oldname))
1657 *newname++ = toupper((unsigned char)*oldname);
1658 else if (isupper((unsigned char)*oldname)
1659 || isdigit((unsigned char)*oldname))
1660 *newname++ = *oldname;
1661 else
1662 *newname++ = '_';
1663
1664 if (found_ext)
1665 extlen++;
1666 else
1667 namelen++;
1668 }
1669 oldname++;
1670 }
1671 if (is_file) {
1672 if (!found_ext && !diskStructure->omit_trailing_period)
1673 *newname++ = '.';
1674 /* Add version */
1675 sprintf(newname, ";%i", 1);
1676 }
1677 return namelen + extlen + found_ext;
1678 }
1679
1680 /* XXX bounds checking! */
1681 static int
cd9660_level2_convert_filename(iso9660_disk * diskStructure,const char * oldname,char * newname,int is_file)1682 cd9660_level2_convert_filename(iso9660_disk *diskStructure, const char *oldname,
1683 char *newname, int is_file)
1684 {
1685 /*
1686 * ISO 9660 : 7.5.1
1687 * File name : 0+ d or d1 characters
1688 * separator 1 (.)
1689 * File name extension : 0+ d or d1 characters
1690 * separator 2 (;)
1691 * File version number (5 characters, 1-32767)
1692 * 1 <= Sum of File name and File name extension <= 30
1693 */
1694 int namelen = 0;
1695 int extlen = 0;
1696 int found_ext = 0;
1697
1698 while (*oldname != '\0' && namelen + extlen < 30) {
1699 /* Handle period first, as it is special */
1700 if (*oldname == '.') {
1701 if (found_ext) {
1702 if (diskStructure->allow_multidot) {
1703 *newname++ = '.';
1704 } else {
1705 *newname++ = '_';
1706 }
1707 extlen ++;
1708 }
1709 else {
1710 *newname++ = '.';
1711 found_ext = 1;
1712 }
1713 } else {
1714 /* cut RISC OS file type off ISO name */
1715 if (diskStructure->archimedes_enabled &&
1716 *oldname == ',' && strlen(oldname) == 4)
1717 break;
1718
1719 if (islower((unsigned char)*oldname))
1720 *newname++ = toupper((unsigned char)*oldname);
1721 else if (isupper((unsigned char)*oldname) ||
1722 isdigit((unsigned char)*oldname))
1723 *newname++ = *oldname;
1724 else if (diskStructure->allow_multidot &&
1725 *oldname == '.') {
1726 *newname++ = '.';
1727 } else {
1728 *newname++ = '_';
1729 }
1730
1731 if (found_ext)
1732 extlen++;
1733 else
1734 namelen++;
1735 }
1736 oldname ++;
1737 }
1738 if (is_file) {
1739 if (!found_ext && !diskStructure->omit_trailing_period)
1740 *newname++ = '.';
1741 /* Add version */
1742 sprintf(newname, ";%i", 1);
1743 }
1744 return namelen + extlen + found_ext;
1745 }
1746
1747 #if 0
1748 static int
1749 cd9660_joliet_convert_filename(iso9660_disk *diskStructure, const char *oldname,
1750 char *newname, int is_file)
1751 {
1752 /* TODO: implement later, move to cd9660_joliet.c ?? */
1753 }
1754 #endif
1755
1756
1757 /*
1758 * Convert a file name to ISO compliant file name
1759 * @param char * oldname The original filename
1760 * @param char ** newname The new file name, in the appropriate character
1761 * set and of appropriate length
1762 * @param int 1 if file, 0 if directory
1763 * @returns int The length of the new string
1764 */
1765 static int
cd9660_convert_filename(iso9660_disk * diskStructure,const char * oldname,char * newname,int is_file)1766 cd9660_convert_filename(iso9660_disk *diskStructure, const char *oldname,
1767 char *newname, int is_file)
1768 {
1769 /* NEW */
1770 cd9660_filename_conversion_functor conversion_function = 0;
1771 if (diskStructure->isoLevel == 1)
1772 conversion_function = &cd9660_level1_convert_filename;
1773 else if (diskStructure->isoLevel == 2)
1774 conversion_function = &cd9660_level2_convert_filename;
1775 return (*conversion_function)(diskStructure, oldname, newname, is_file);
1776 }
1777
1778 int
cd9660_compute_record_size(iso9660_disk * diskStructure,cd9660node * node)1779 cd9660_compute_record_size(iso9660_disk *diskStructure, cd9660node *node)
1780 {
1781 int size = node->isoDirRecord->length[0];
1782
1783 if (diskStructure->rock_ridge_enabled)
1784 size += node->susp_entry_size;
1785 size += node->su_tail_size;
1786 size += size & 1; /* Ensure length of record is even. */
1787 assert(size <= 254);
1788 return size;
1789 }
1790
1791 static void
cd9660_populate_dot_records(iso9660_disk * diskStructure,cd9660node * node)1792 cd9660_populate_dot_records(iso9660_disk *diskStructure, cd9660node *node)
1793 {
1794 node->dot_record->fileDataSector = node->fileDataSector;
1795 memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34);
1796 node->dot_record->isoDirRecord->name_len[0] = 1;
1797 node->dot_record->isoDirRecord->name[0] = 0;
1798 node->dot_record->isoDirRecord->name[1] = 0;
1799 node->dot_record->isoDirRecord->length[0] = 34;
1800 node->dot_record->fileRecordSize =
1801 cd9660_compute_record_size(diskStructure, node->dot_record);
1802
1803 if (node == diskStructure->rootNode) {
1804 node->dot_dot_record->fileDataSector = node->fileDataSector;
1805 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord,
1806 34);
1807 } else {
1808 node->dot_dot_record->fileDataSector =
1809 node->parent->fileDataSector;
1810 memcpy(node->dot_dot_record->isoDirRecord,
1811 node->parent->isoDirRecord,34);
1812 }
1813 node->dot_dot_record->isoDirRecord->name_len[0] = 1;
1814 node->dot_dot_record->isoDirRecord->name[0] = 1;
1815 node->dot_dot_record->isoDirRecord->name[1] = 0;
1816 node->dot_dot_record->isoDirRecord->length[0] = 34;
1817 node->dot_dot_record->fileRecordSize =
1818 cd9660_compute_record_size(diskStructure, node->dot_dot_record);
1819 }
1820
1821 /*
1822 * @param struct cd9660node *node The node
1823 * @param int The offset (in bytes) - SHOULD align to the beginning of a sector
1824 * @returns int The total size of files and directory entries (should be
1825 * a multiple of sector size)
1826 */
1827 static int64_t
cd9660_compute_offsets(iso9660_disk * diskStructure,cd9660node * node,int64_t startOffset)1828 cd9660_compute_offsets(iso9660_disk *diskStructure, cd9660node *node,
1829 int64_t startOffset)
1830 {
1831 /*
1832 * This function needs to compute the size of directory records and
1833 * runs, file lengths, and set the appropriate variables both in
1834 * cd9660node and isoDirEntry
1835 */
1836 int64_t used_bytes = 0;
1837 int64_t current_sector_usage = 0;
1838 cd9660node *child;
1839 fsinode *inode;
1840 int64_t r;
1841
1842 assert(node != NULL);
1843
1844
1845 /*
1846 * NOTE : There needs to be some special case detection for
1847 * the "real root" node, since for it, node->node is undefined
1848 */
1849
1850 node->fileDataSector = -1;
1851
1852 if (node->type & CD9660_TYPE_DIR) {
1853 node->fileRecordSize = cd9660_compute_record_size(
1854 diskStructure, node);
1855 /*Set what sector this directory starts in*/
1856 node->fileDataSector =
1857 CD9660_BLOCKS(diskStructure->sectorSize,startOffset);
1858
1859 cd9660_bothendian_dword(node->fileDataSector,
1860 node->isoDirRecord->extent);
1861
1862 /*
1863 * First loop over children, need to know the size of
1864 * their directory records
1865 */
1866 node->fileSectorsUsed = 1;
1867 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) {
1868 node->fileDataLength +=
1869 cd9660_compute_record_size(diskStructure, child);
1870 if ((cd9660_compute_record_size(diskStructure, child) +
1871 current_sector_usage) >=
1872 diskStructure->sectorSize) {
1873 current_sector_usage = 0;
1874 node->fileSectorsUsed++;
1875 }
1876
1877 current_sector_usage +=
1878 cd9660_compute_record_size(diskStructure, child);
1879 }
1880
1881 cd9660_bothendian_dword(node->fileSectorsUsed *
1882 diskStructure->sectorSize,node->isoDirRecord->size);
1883
1884 /*
1885 * This should point to the sector after the directory
1886 * record (or, the first byte in that sector)
1887 */
1888 used_bytes += node->fileSectorsUsed * diskStructure->sectorSize;
1889
1890 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1891 child != NULL; child = TAILQ_NEXT(child, cn_next_child)) {
1892 /* Directories need recursive call */
1893 if (S_ISDIR(child->node->type)) {
1894 r = cd9660_compute_offsets(diskStructure, child,
1895 used_bytes + startOffset);
1896
1897 if (r != -1)
1898 used_bytes += r;
1899 else
1900 return -1;
1901 }
1902 }
1903
1904 /* Explicitly set the . and .. records */
1905 cd9660_populate_dot_records(diskStructure, node);
1906
1907 /* Finally, do another iteration to write the file data*/
1908 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1909 child != NULL;
1910 child = TAILQ_NEXT(child, cn_next_child)) {
1911 /* Files need extent set */
1912 if (S_ISDIR(child->node->type))
1913 continue;
1914 child->fileRecordSize =
1915 cd9660_compute_record_size(diskStructure, child);
1916
1917 child->fileSectorsUsed =
1918 CD9660_BLOCKS(diskStructure->sectorSize,
1919 child->fileDataLength);
1920
1921 inode = child->node->inode;
1922 if ((inode->flags & FI_ALLOCATED) == 0) {
1923 inode->ino =
1924 CD9660_BLOCKS(diskStructure->sectorSize,
1925 used_bytes + startOffset);
1926 inode->flags |= FI_ALLOCATED;
1927 used_bytes += child->fileSectorsUsed *
1928 diskStructure->sectorSize;
1929 } else {
1930 INODE_WARNX(("%s: already allocated inode %d "
1931 "data sectors at %" PRIu32, __func__,
1932 (int)inode->st.st_ino, inode->ino));
1933 }
1934 child->fileDataSector = inode->ino;
1935 cd9660_bothendian_dword(child->fileDataSector,
1936 child->isoDirRecord->extent);
1937 }
1938 }
1939
1940 return used_bytes;
1941 }
1942
1943 #if 0
1944 /* Might get rid of this func */
1945 static int
1946 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file)
1947 {
1948 to->node->inode->st.st_dev = 0;
1949 to->node->inode->st.st_ino = 0;
1950 to->node->inode->st.st_size = 0;
1951 to->node->inode->st.st_blksize = from->node->inode->st.st_blksize;
1952 to->node->inode->st.st_atime = from->node->inode->st.st_atime;
1953 to->node->inode->st.st_mtime = from->node->inode->st.st_mtime;
1954 to->node->inode->st.st_ctime = from->node->inode->st.st_ctime;
1955 to->node->inode->st.st_uid = from->node->inode->st.st_uid;
1956 to->node->inode->st.st_gid = from->node->inode->st.st_gid;
1957 to->node->inode->st.st_mode = from->node->inode->st.st_mode;
1958 /* Clear out type */
1959 to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT);
1960 if (file)
1961 to->node->inode->st.st_mode |= S_IFREG;
1962 else
1963 to->node->inode->st.st_mode |= S_IFDIR;
1964 return 1;
1965 }
1966 #endif
1967
1968 static cd9660node *
cd9660_create_virtual_entry(iso9660_disk * diskStructure,const char * name,cd9660node * parent,int file,int insert)1969 cd9660_create_virtual_entry(iso9660_disk *diskStructure, const char *name,
1970 cd9660node *parent, int file, int insert)
1971 {
1972 cd9660node *temp;
1973 fsnode * tfsnode;
1974
1975 assert(parent != NULL);
1976
1977 temp = cd9660_allocate_cd9660node();
1978 if (temp == NULL)
1979 return NULL;
1980
1981 tfsnode = emalloc(sizeof(*tfsnode));
1982 tfsnode->name = estrdup(name);
1983 temp->isoDirRecord = emalloc(sizeof(*temp->isoDirRecord));
1984
1985 cd9660_convert_filename(diskStructure, tfsnode->name,
1986 temp->isoDirRecord->name, file);
1987
1988 temp->node = tfsnode;
1989 temp->parent = parent;
1990
1991 if (insert) {
1992 if (temp->parent != NULL) {
1993 temp->level = temp->parent->level + 1;
1994 if (!TAILQ_EMPTY(&temp->parent->cn_children))
1995 cd9660_sorted_child_insert(temp->parent, temp);
1996 else
1997 TAILQ_INSERT_HEAD(&temp->parent->cn_children,
1998 temp, cn_next_child);
1999 }
2000 }
2001
2002 if (parent->node != NULL) {
2003 tfsnode->type = parent->node->type;
2004 }
2005
2006 /* Clear out file type bits */
2007 tfsnode->type &= ~(S_IFMT);
2008 if (file)
2009 tfsnode->type |= S_IFREG;
2010 else
2011 tfsnode->type |= S_IFDIR;
2012
2013 /* Indicate that there is no spec entry (inode) */
2014 tfsnode->flags &= ~(FSNODE_F_HASSPEC);
2015 #if 0
2016 cd9660_copy_stat_info(parent, temp, file);
2017 #endif
2018 return temp;
2019 }
2020
2021 static cd9660node *
cd9660_create_file(iso9660_disk * diskStructure,const char * name,cd9660node * parent,cd9660node * me)2022 cd9660_create_file(iso9660_disk *diskStructure, const char *name,
2023 cd9660node *parent, cd9660node *me)
2024 {
2025 cd9660node *temp;
2026
2027 temp = cd9660_create_virtual_entry(diskStructure, name, parent, 1, 1);
2028 if (temp == NULL)
2029 return NULL;
2030
2031 temp->fileDataLength = 0;
2032
2033 temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL;
2034
2035 temp->node->inode = ecalloc(1, sizeof(*temp->node->inode));
2036 *temp->node->inode = *me->node->inode;
2037
2038 if (cd9660_translate_node_common(diskStructure, temp) == 0)
2039 return NULL;
2040 return temp;
2041 }
2042
2043 /*
2044 * Create a new directory which does not exist on disk
2045 * @param const char * name The name to assign to the directory
2046 * @param const char * parent Pointer to the parent directory
2047 * @returns cd9660node * Pointer to the new directory
2048 */
2049 static cd9660node *
cd9660_create_directory(iso9660_disk * diskStructure,const char * name,cd9660node * parent,cd9660node * me)2050 cd9660_create_directory(iso9660_disk *diskStructure, const char *name,
2051 cd9660node *parent, cd9660node *me)
2052 {
2053 cd9660node *temp;
2054
2055 temp = cd9660_create_virtual_entry(diskStructure, name, parent, 0, 1);
2056 if (temp == NULL)
2057 return NULL;
2058 temp->node->type |= S_IFDIR;
2059
2060 temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL;
2061
2062 temp->node->inode = ecalloc(1, sizeof(*temp->node->inode));
2063 *temp->node->inode = *me->node->inode;
2064
2065 if (cd9660_translate_node_common(diskStructure, temp) == 0)
2066 return NULL;
2067 return temp;
2068 }
2069
2070 static cd9660node *
cd9660_create_special_directory(iso9660_disk * diskStructure,u_char type,cd9660node * parent)2071 cd9660_create_special_directory(iso9660_disk *diskStructure, u_char type,
2072 cd9660node *parent)
2073 {
2074 cd9660node *temp, *first;
2075 char na[2];
2076
2077 assert(parent != NULL);
2078
2079 if (type == CD9660_TYPE_DOT)
2080 na[0] = 0;
2081 else if (type == CD9660_TYPE_DOTDOT)
2082 na[0] = 1;
2083 else
2084 return 0;
2085
2086 na[1] = 0;
2087 if ((temp = cd9660_create_virtual_entry(diskStructure, na, parent,
2088 0, 0)) == NULL)
2089 return NULL;
2090
2091 temp->parent = parent;
2092 temp->type = type;
2093 temp->isoDirRecord->length[0] = 34;
2094 /* Dot record is always first */
2095 if (type == CD9660_TYPE_DOT) {
2096 parent->dot_record = temp;
2097 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child);
2098 /* DotDot should be second */
2099 } else if (type == CD9660_TYPE_DOTDOT) {
2100 parent->dot_dot_record = temp;
2101 /*
2102 * If the first child is the dot record, insert
2103 * this second. Otherwise, insert it at the head.
2104 */
2105 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL ||
2106 (first->type & CD9660_TYPE_DOT) == 0) {
2107 TAILQ_INSERT_HEAD(&parent->cn_children, temp,
2108 cn_next_child);
2109 } else {
2110 TAILQ_INSERT_AFTER(&parent->cn_children, first, temp,
2111 cn_next_child);
2112 }
2113 }
2114
2115 return temp;
2116 }
2117
2118 static int
cd9660_add_generic_bootimage(iso9660_disk * diskStructure,const char * bootimage)2119 cd9660_add_generic_bootimage(iso9660_disk *diskStructure, const char *bootimage)
2120 {
2121 struct stat stbuf;
2122
2123 assert(bootimage != NULL);
2124
2125 if (*bootimage == '\0') {
2126 warnx("Error: Boot image must be a filename");
2127 return 0;
2128 }
2129
2130 diskStructure->generic_bootimage = estrdup(bootimage);
2131
2132 /* Get information about the file */
2133 if (lstat(diskStructure->generic_bootimage, &stbuf) == -1)
2134 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__,
2135 diskStructure->generic_bootimage);
2136
2137 if (stbuf.st_size > 32768) {
2138 warnx("Error: Boot image must be no greater than 32768 bytes");
2139 return 0;
2140 }
2141
2142 if (diskStructure->verbose_level > 0) {
2143 printf("Generic boot image image has size %lld\n",
2144 (long long)stbuf.st_size);
2145 }
2146
2147 diskStructure->has_generic_bootimage = 1;
2148
2149 return 1;
2150 }
2151