1 /* $NetBSD: cd9660.c,v 1.32 2011/08/23 17:09:11 christos Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause-NetBSD AND BSD-4-Clause
5 *
6 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
7 * Perez-Rathke and Ram Vedam. All rights reserved.
8 *
9 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
10 * Alan Perez-Rathke and Ram Vedam.
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer in the documentation and/or other materials provided
20 * with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
23 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN
27 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
30 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
34 * OF SUCH DAMAGE.
35 */
36 /*
37 * Copyright (c) 2001 Wasabi Systems, Inc.
38 * All rights reserved.
39 *
40 * Written by Luke Mewburn for Wasabi Systems, Inc.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgement:
52 * This product includes software developed for the NetBSD Project by
53 * Wasabi Systems, Inc.
54 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
55 * or promote products derived from this software without specific prior
56 * written permission.
57 *
58 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
60 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
61 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
62 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
63 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
64 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
65 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
66 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
67 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
68 * POSSIBILITY OF SUCH DAMAGE.
69 */
70 /*
71 * Copyright (c) 1982, 1986, 1989, 1993
72 * The Regents of the University of California. All rights reserved.
73 *
74 * Redistribution and use in source and binary forms, with or without
75 * modification, are permitted provided that the following conditions
76 * are met:
77 * 1. Redistributions of source code must retain the above copyright
78 * notice, this list of conditions and the following disclaimer.
79 * 2. Redistributions in binary form must reproduce the above copyright
80 * notice, this list of conditions and the following disclaimer in the
81 * documentation and/or other materials provided with the distribution.
82 * 3. Neither the name of the University nor the names of its contributors
83 * may be used to endorse or promote products derived from this software
84 * without specific prior written permission.
85 *
86 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
87 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
88 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
89 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
90 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
91 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
92 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
93 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
94 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
95 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
96 * SUCH DAMAGE.
97 *
98 * $FreeBSD: head/usr.sbin/makefs/cd9660.c 331843 2018-03-31 15:04:41Z benno $
99 */
100
101 #include <sys/param.h>
102 #include <sys/queue.h>
103 #include <ctype.h>
104 #include <stdlib.h>
105 #include <string.h>
106 #include <util.h>
107
108 #include "makefs.h"
109 #include "cd9660.h"
110 #include "cd9660/iso9660_rrip.h"
111 #include "cd9660/cd9660_archimedes.h"
112
113 static void cd9660_finalize_PVD(iso9660_disk *);
114 static cd9660node *cd9660_allocate_cd9660node(void);
115 static void cd9660_set_defaults(iso9660_disk *);
116 static int cd9660_arguments_set_string(const char *, const char *, int,
117 char, char *);
118 static void cd9660_populate_iso_dir_record(
119 struct _iso_directory_record_cd9660 *, u_char, u_char, u_char,
120 const char *);
121 static void cd9660_setup_root_node(iso9660_disk *);
122 static int cd9660_setup_volume_descriptors(iso9660_disk *);
123 #if 0
124 static int cd9660_fill_extended_attribute_record(cd9660node *);
125 #endif
126 static void cd9660_sort_nodes(cd9660node *);
127 static int cd9660_translate_node_common(iso9660_disk *, cd9660node *);
128 static int cd9660_translate_node(iso9660_disk *, fsnode *, cd9660node *);
129 static int cd9660_compare_filename(const char *, const char *);
130 static void cd9660_sorted_child_insert(cd9660node *, cd9660node *);
131 static int cd9660_handle_collisions(iso9660_disk *, cd9660node *, int);
132 static cd9660node *cd9660_rename_filename(iso9660_disk *, cd9660node *, int,
133 int);
134 static void cd9660_copy_filenames(iso9660_disk *, cd9660node *);
135 static void cd9660_sorting_nodes(cd9660node *);
136 static int cd9660_count_collisions(cd9660node *);
137 static cd9660node *cd9660_rrip_move_directory(iso9660_disk *, cd9660node *);
138 static int cd9660_add_dot_records(iso9660_disk *, cd9660node *);
139
140 static void cd9660_convert_structure(iso9660_disk *, fsnode *, cd9660node *, int,
141 int *, int *);
142 static void cd9660_free_structure(cd9660node *);
143 static int cd9660_generate_path_table(iso9660_disk *);
144 static int cd9660_level1_convert_filename(iso9660_disk *, const char *, char *,
145 int);
146 static int cd9660_level2_convert_filename(iso9660_disk *, const char *, char *,
147 int);
148 #if 0
149 static int cd9660_joliet_convert_filename(iso9660_disk *, const char *, char *,
150 int);
151 #endif
152 static int cd9660_convert_filename(iso9660_disk *, const char *, char *, int);
153 static void cd9660_populate_dot_records(iso9660_disk *, cd9660node *);
154 static int64_t cd9660_compute_offsets(iso9660_disk *, cd9660node *, int64_t);
155 #if 0
156 static int cd9660_copy_stat_info(cd9660node *, cd9660node *, int);
157 #endif
158 static cd9660node *cd9660_create_virtual_entry(iso9660_disk *, const char *,
159 cd9660node *, int, int);
160 static cd9660node *cd9660_create_file(iso9660_disk *, const char *,
161 cd9660node *, cd9660node *);
162 static cd9660node *cd9660_create_directory(iso9660_disk *, const char *,
163 cd9660node *, cd9660node *);
164 static cd9660node *cd9660_create_special_directory(iso9660_disk *, u_char,
165 cd9660node *);
166 static int cd9660_add_generic_bootimage(iso9660_disk *, const char *);
167
168
169 /*
170 * Allocate and initialize a cd9660node
171 * @returns struct cd9660node * Pointer to new node, or NULL on error
172 */
173 static cd9660node *
cd9660_allocate_cd9660node(void)174 cd9660_allocate_cd9660node(void)
175 {
176 cd9660node *temp = ecalloc(1, sizeof(*temp));
177
178 TAILQ_INIT(&temp->cn_children);
179 temp->parent = temp->dot_record = temp->dot_dot_record = NULL;
180 temp->ptnext = temp->ptprev = temp->ptlast = NULL;
181 temp->node = NULL;
182 temp->isoDirRecord = NULL;
183 temp->isoExtAttributes = NULL;
184 temp->rr_real_parent = temp->rr_relocated = NULL;
185 temp->su_tail_data = NULL;
186 return temp;
187 }
188
189 /**
190 * Set default values for cd9660 extension to makefs
191 */
192 static void
cd9660_set_defaults(iso9660_disk * diskStructure)193 cd9660_set_defaults(iso9660_disk *diskStructure)
194 {
195 /*Fix the sector size for now, though the spec allows for other sizes*/
196 diskStructure->sectorSize = 2048;
197
198 /* Set up defaults in our own structure */
199 diskStructure->verbose_level = 0;
200 diskStructure->keep_bad_images = 0;
201 diskStructure->follow_sym_links = 0;
202 diskStructure->isoLevel = 2;
203
204 diskStructure->rock_ridge_enabled = 0;
205 diskStructure->rock_ridge_renamed_dir_name = 0;
206 diskStructure->rock_ridge_move_count = 0;
207 diskStructure->rr_moved_dir = 0;
208
209 diskStructure->archimedes_enabled = 0;
210 diskStructure->chrp_boot = 0;
211
212 diskStructure->include_padding_areas = 1;
213
214 /* Spec breaking functionality */
215 diskStructure->allow_deep_trees =
216 diskStructure->allow_start_dot =
217 diskStructure->allow_max_name =
218 diskStructure->allow_illegal_chars =
219 diskStructure->allow_lowercase =
220 diskStructure->allow_multidot =
221 diskStructure->omit_trailing_period = 0;
222
223 /* Make sure the PVD is clear */
224 memset(&diskStructure->primaryDescriptor, 0, 2048);
225
226 memset(diskStructure->primaryDescriptor.publisher_id, 0x20,128);
227 memset(diskStructure->primaryDescriptor.preparer_id, 0x20,128);
228 memset(diskStructure->primaryDescriptor.application_id, 0x20,128);
229 memset(diskStructure->primaryDescriptor.copyright_file_id, 0x20,37);
230 memset(diskStructure->primaryDescriptor.abstract_file_id, 0x20,37);
231 memset(diskStructure->primaryDescriptor.bibliographic_file_id, 0x20,37);
232
233 strcpy(diskStructure->primaryDescriptor.system_id, "FreeBSD");
234
235 /* Boot support: Initially disabled */
236 diskStructure->has_generic_bootimage = 0;
237 diskStructure->generic_bootimage = NULL;
238
239 diskStructure->boot_image_directory = 0;
240 /*memset(diskStructure->boot_descriptor, 0, 2048);*/
241
242 diskStructure->is_bootable = 0;
243 TAILQ_INIT(&diskStructure->boot_images);
244 LIST_INIT(&diskStructure->boot_entries);
245 }
246
247 void
cd9660_prep_opts(fsinfo_t * fsopts)248 cd9660_prep_opts(fsinfo_t *fsopts)
249 {
250 iso9660_disk *diskStructure = ecalloc(1, sizeof(*diskStructure));
251
252 #define OPT_STR(letter, name, desc) \
253 { letter, name, NULL, OPT_STRBUF, 0, 0, desc }
254
255 #define OPT_NUM(letter, name, field, min, max, desc) \
256 { letter, name, &diskStructure->field, \
257 sizeof(diskStructure->field) == 8 ? OPT_INT64 : \
258 (sizeof(diskStructure->field) == 4 ? OPT_INT32 : \
259 (sizeof(diskStructure->field) == 2 ? OPT_INT16 : OPT_INT8)), \
260 min, max, desc }
261
262 #define OPT_BOOL(letter, name, field, desc) \
263 OPT_NUM(letter, name, field, 0, 1, desc)
264
265 const option_t cd9660_options[] = {
266 OPT_NUM('l', "isolevel", isoLevel,
267 1, 2, "ISO Level"),
268 OPT_NUM('v', "verbose", verbose_level,
269 0, 2, "Turns on verbose output"),
270
271 OPT_BOOL('h', "help", displayHelp,
272 "Show help message"),
273 OPT_BOOL('S', "follow-symlinks", follow_sym_links,
274 "Resolve symlinks in pathnames"),
275 OPT_BOOL('R', "rockridge", rock_ridge_enabled,
276 "Enable Rock-Ridge extensions"),
277 OPT_BOOL('C', "chrp-boot", chrp_boot,
278 "Enable CHRP boot"),
279 OPT_BOOL('K', "keep-bad-images", keep_bad_images,
280 "Keep bad images"),
281 OPT_BOOL('D', "allow-deep-trees", allow_deep_trees,
282 "Allow trees more than 8 levels"),
283 OPT_BOOL('a', "allow-max-name", allow_max_name,
284 "Allow 37 char filenames (unimplemented)"),
285 OPT_BOOL('i', "allow-illegal-chars", allow_illegal_chars,
286 "Allow illegal characters in filenames"),
287 OPT_BOOL('m', "allow-multidot", allow_multidot,
288 "Allow multiple periods in filenames"),
289 OPT_BOOL('o', "omit-trailing-period", omit_trailing_period,
290 "Omit trailing periods in filenames"),
291 OPT_BOOL('\0', "allow-lowercase", allow_lowercase,
292 "Allow lowercase characters in filenames"),
293 OPT_BOOL('\0', "archimedes", archimedes_enabled,
294 "Enable Archimedes structure"),
295 OPT_BOOL('\0', "no-trailing-padding", include_padding_areas,
296 "Include padding areas"),
297
298 OPT_STR('A', "applicationid", "Application Identifier"),
299 OPT_STR('P', "publisher", "Publisher Identifier"),
300 OPT_STR('p', "preparer", "Preparer Identifier"),
301 OPT_STR('L', "label", "Disk Label"),
302 OPT_STR('V', "volumeid", "Volume Set Identifier"),
303 OPT_STR('B', "bootimage", "Boot image parameter"),
304 OPT_STR('G', "generic-bootimage", "Generic boot image param"),
305 OPT_STR('\0', "bootimagedir", "Boot image directory"),
306 OPT_STR('\0', "no-emul-boot", "No boot emulation"),
307 OPT_STR('\0', "no-boot", "No boot support"),
308 OPT_STR('\0', "hard-disk-boot", "Boot from hard disk"),
309 OPT_STR('\0', "boot-load-segment", "Boot load segment"),
310 OPT_STR('\0', "platformid", "Section Header Platform ID"),
311
312 { .name = NULL }
313 };
314
315 fsopts->fs_specific = diskStructure;
316 fsopts->fs_options = copy_opts(cd9660_options);
317
318 cd9660_set_defaults(diskStructure);
319 }
320
321 void
cd9660_cleanup_opts(fsinfo_t * fsopts)322 cd9660_cleanup_opts(fsinfo_t *fsopts)
323 {
324 free(fsopts->fs_specific);
325 free(fsopts->fs_options);
326 }
327
328 static int
cd9660_arguments_set_string(const char * val,const char * fieldtitle,int length,char testmode,char * dest)329 cd9660_arguments_set_string(const char *val, const char *fieldtitle, int length,
330 char testmode, char * dest)
331 {
332 int len, test;
333
334 if (val == NULL)
335 warnx("error: The %s requires a string argument", fieldtitle);
336 else if ((len = strlen(val)) <= length) {
337 if (testmode == 'd')
338 test = cd9660_valid_d_chars(val);
339 else
340 test = cd9660_valid_a_chars(val);
341 if (test) {
342 memcpy(dest, val, len);
343 if (test == 2)
344 cd9660_uppercase_characters(dest, len);
345 return 1;
346 } else
347 warnx("error: The %s must be composed of "
348 "%c-characters", fieldtitle, testmode);
349 } else
350 warnx("error: The %s must be at most 32 characters long",
351 fieldtitle);
352 return 0;
353 }
354
355 /*
356 * Command-line parsing function
357 */
358
359 int
cd9660_parse_opts(const char * option,fsinfo_t * fsopts)360 cd9660_parse_opts(const char *option, fsinfo_t *fsopts)
361 {
362 int rv, i;
363 iso9660_disk *diskStructure = fsopts->fs_specific;
364 option_t *cd9660_options = fsopts->fs_options;
365 char buf[1024];
366 const char *name, *desc;
367
368 assert(option != NULL);
369
370 if (debug & DEBUG_FS_PARSE_OPTS)
371 printf("%s: got `%s'\n", __func__, option);
372
373 i = set_option(cd9660_options, option, buf, sizeof(buf));
374 if (i == -1)
375 return 0;
376
377 if (cd9660_options[i].name == NULL)
378 abort();
379
380 name = cd9660_options[i].name;
381 desc = cd9660_options[i].desc;
382 switch (cd9660_options[i].letter) {
383 case 'h':
384 case 'S':
385 rv = 0; /* this is not handled yet */
386 break;
387 case 'L':
388 rv = cd9660_arguments_set_string(buf, desc, 32, 'd',
389 diskStructure->primaryDescriptor.volume_id);
390 break;
391 case 'A':
392 rv = cd9660_arguments_set_string(buf, desc, 128, 'a',
393 diskStructure->primaryDescriptor.application_id);
394 break;
395 case 'P':
396 rv = cd9660_arguments_set_string(buf, desc, 128, 'a',
397 diskStructure->primaryDescriptor.publisher_id);
398 break;
399 case 'p':
400 rv = cd9660_arguments_set_string(buf, desc, 128, 'a',
401 diskStructure->primaryDescriptor.preparer_id);
402 break;
403 case 'V':
404 rv = cd9660_arguments_set_string(buf, desc, 128, 'a',
405 diskStructure->primaryDescriptor.volume_set_id);
406 break;
407 /* Boot options */
408 case 'B':
409 if (buf[0] == '\0') {
410 warnx("The Boot Image parameter requires a valid boot"
411 "information string");
412 rv = 0;
413 } else
414 rv = cd9660_add_boot_disk(diskStructure, buf);
415 break;
416 case 'G':
417 if (buf[0] == '\0') {
418 warnx("The Generic Boot Image parameter requires a"
419 " valid boot information string");
420 rv = 0;
421 } else
422 rv = cd9660_add_generic_bootimage(diskStructure, buf);
423 break;
424 default:
425 if (strcmp(name, "bootimagedir") == 0) {
426 /*
427 * XXXfvdl this is unused.
428 */
429 if (buf[0] == '\0') {
430 warnx("The Boot Image Directory parameter"
431 " requires a directory name");
432 rv = 0;
433 } else {
434 diskStructure->boot_image_directory =
435 emalloc(strlen(buf) + 1);
436 /* BIG TODO: Add the max length function here */
437 rv = cd9660_arguments_set_string(buf, desc, 12,
438 'd', diskStructure->boot_image_directory);
439 }
440 } else if (strcmp(name, "no-emul-boot") == 0 ||
441 strcmp(name, "no-boot") == 0 ||
442 strcmp(name, "hard-disk-boot") == 0) {
443 /* RRIP */
444 cd9660_eltorito_add_boot_option(diskStructure, name, 0);
445 rv = 1;
446 } else if (strcmp(name, "boot-load-segment") == 0 ||
447 strcmp(name, "platformid") == 0) {
448 if (buf[0] == '\0') {
449 warnx("Option `%s' doesn't contain a value",
450 name);
451 rv = 0;
452 } else {
453 cd9660_eltorito_add_boot_option(diskStructure,
454 name, buf);
455 rv = 1;
456 }
457 } else
458 rv = 1;
459 }
460 return rv;
461 }
462
463 /*
464 * Main function for cd9660_makefs
465 * Builds the ISO image file
466 * @param const char *image The image filename to create
467 * @param const char *dir The directory that is being read
468 * @param struct fsnode *root The root node of the filesystem tree
469 * @param struct fsinfo_t *fsopts Any options
470 */
471 void
cd9660_makefs(const char * image,const char * dir,fsnode * root,fsinfo_t * fsopts)472 cd9660_makefs(const char *image, const char *dir, fsnode *root,
473 fsinfo_t *fsopts)
474 {
475 int64_t startoffset;
476 int numDirectories;
477 uint64_t pathTableSectors;
478 int64_t firstAvailableSector;
479 int64_t totalSpace;
480 int error;
481 cd9660node *real_root;
482 iso9660_disk *diskStructure = fsopts->fs_specific;
483
484 if (diskStructure->verbose_level > 0)
485 printf("%s: ISO level is %i\n", __func__,
486 diskStructure->isoLevel);
487 if (diskStructure->isoLevel < 2 &&
488 diskStructure->allow_multidot)
489 errx(EXIT_FAILURE, "allow-multidot requires iso level of 2");
490
491 assert(image != NULL);
492 assert(dir != NULL);
493 assert(root != NULL);
494
495 if (diskStructure->displayHelp) {
496 /*
497 * Display help here - probably want to put it in
498 * a separate function
499 */
500 return;
501 }
502
503 if (diskStructure->verbose_level > 0)
504 printf("%s: image %s directory %s root %p\n", __func__,
505 image, dir, root);
506
507 /* Set up some constants. Later, these will be defined with options */
508
509 /* Counter needed for path tables */
510 numDirectories = 0;
511
512 /* Convert tree to our own format */
513 /* Actually, we now need to add the REAL root node, at level 0 */
514
515 real_root = cd9660_allocate_cd9660node();
516 real_root->isoDirRecord = emalloc(sizeof(*real_root->isoDirRecord));
517 /* Leave filename blank for root */
518 memset(real_root->isoDirRecord->name, 0,
519 ISO_FILENAME_MAXLENGTH_WITH_PADDING);
520
521 real_root->level = 0;
522 diskStructure->rootNode = real_root;
523 real_root->type = CD9660_TYPE_DIR;
524 error = 0;
525 real_root->node = root;
526 cd9660_convert_structure(diskStructure, root, real_root, 1,
527 &numDirectories, &error);
528
529 if (TAILQ_EMPTY(&real_root->cn_children)) {
530 errx(EXIT_FAILURE, "%s: converted directory is empty. "
531 "Tree conversion failed", __func__);
532 } else if (error != 0) {
533 errx(EXIT_FAILURE, "%s: tree conversion failed", __func__);
534 } else {
535 if (diskStructure->verbose_level > 0)
536 printf("%s: tree converted\n", __func__);
537 }
538
539 /* Add the dot and dot dot records */
540 cd9660_add_dot_records(diskStructure, real_root);
541
542 cd9660_setup_root_node(diskStructure);
543
544 if (diskStructure->verbose_level > 0)
545 printf("%s: done converting tree\n", __func__);
546
547 /* non-SUSP extensions */
548 if (diskStructure->archimedes_enabled)
549 archimedes_convert_tree(diskStructure->rootNode);
550
551 /* Rock ridge / SUSP init pass */
552 if (diskStructure->rock_ridge_enabled) {
553 cd9660_susp_initialize(diskStructure, diskStructure->rootNode,
554 diskStructure->rootNode, NULL);
555 }
556
557 /* Build path table structure */
558 diskStructure->pathTableLength = cd9660_generate_path_table(
559 diskStructure);
560
561 pathTableSectors = CD9660_BLOCKS(diskStructure->sectorSize,
562 diskStructure->pathTableLength);
563
564 firstAvailableSector = cd9660_setup_volume_descriptors(diskStructure);
565 if (diskStructure->is_bootable) {
566 firstAvailableSector = cd9660_setup_boot(diskStructure,
567 firstAvailableSector);
568 if (firstAvailableSector < 0)
569 errx(EXIT_FAILURE, "setup_boot failed");
570 }
571 /* LE first, then BE */
572 diskStructure->primaryLittleEndianTableSector = firstAvailableSector;
573 diskStructure->primaryBigEndianTableSector =
574 diskStructure->primaryLittleEndianTableSector + pathTableSectors;
575
576 /* Set the secondary ones to -1, not going to use them for now */
577 diskStructure->secondaryBigEndianTableSector = -1;
578 diskStructure->secondaryLittleEndianTableSector = -1;
579
580 diskStructure->dataFirstSector =
581 diskStructure->primaryBigEndianTableSector + pathTableSectors;
582 if (diskStructure->verbose_level > 0)
583 printf("%s: Path table conversion complete. "
584 "Each table is %i bytes, or %" PRIu64 " sectors.\n",
585 __func__,
586 diskStructure->pathTableLength, pathTableSectors);
587
588 startoffset = diskStructure->sectorSize*diskStructure->dataFirstSector;
589
590 totalSpace = cd9660_compute_offsets(diskStructure, real_root, startoffset);
591
592 diskStructure->totalSectors = diskStructure->dataFirstSector +
593 CD9660_BLOCKS(diskStructure->sectorSize, totalSpace);
594
595 /* Disabled until pass 1 is done */
596 if (diskStructure->rock_ridge_enabled) {
597 diskStructure->susp_continuation_area_start_sector =
598 diskStructure->totalSectors;
599 diskStructure->totalSectors +=
600 CD9660_BLOCKS(diskStructure->sectorSize,
601 diskStructure->susp_continuation_area_size);
602 cd9660_susp_finalize(diskStructure, diskStructure->rootNode);
603 }
604
605
606 cd9660_finalize_PVD(diskStructure);
607
608 /* Add padding sectors, just for testing purposes right now */
609 /* diskStructure->totalSectors+=150; */
610
611 /* Debugging output */
612 if (diskStructure->verbose_level > 0) {
613 printf("%s: Sectors 0-15 reserved\n", __func__);
614 printf("%s: Primary path tables starts in sector %"
615 PRId64 "\n", __func__,
616 diskStructure->primaryLittleEndianTableSector);
617 printf("%s: File data starts in sector %"
618 PRId64 "\n", __func__, diskStructure->dataFirstSector);
619 printf("%s: Total sectors: %"
620 PRId64 "\n", __func__, diskStructure->totalSectors);
621 }
622
623 /*
624 * Add padding sectors at the end
625 * TODO: Clean this up and separate padding
626 */
627 if (diskStructure->include_padding_areas)
628 diskStructure->totalSectors += 150;
629
630 cd9660_write_image(diskStructure, image);
631
632 if (diskStructure->verbose_level > 1) {
633 debug_print_volume_descriptor_information(diskStructure);
634 debug_print_tree(diskStructure, real_root, 0);
635 debug_print_path_tree(real_root);
636 }
637
638 /* Clean up data structures */
639 cd9660_free_structure(real_root);
640
641 if (diskStructure->verbose_level > 0)
642 printf("%s: done\n", __func__);
643 }
644
645 /* Generic function pointer - implement later */
646 typedef int (*cd9660node_func)(cd9660node *);
647
648 static void
cd9660_finalize_PVD(iso9660_disk * diskStructure)649 cd9660_finalize_PVD(iso9660_disk *diskStructure)
650 {
651 time_t tstamp = stampst.st_ino ? stampst.st_mtime : time(NULL);
652
653 /* root should be a fixed size of 34 bytes since it has no name */
654 memcpy(diskStructure->primaryDescriptor.root_directory_record,
655 diskStructure->rootNode->dot_record->isoDirRecord, 34);
656
657 /* In RRIP, this might be longer than 34 */
658 diskStructure->primaryDescriptor.root_directory_record[0] = 34;
659
660 /* Set up all the important numbers in the PVD */
661 cd9660_bothendian_dword(diskStructure->totalSectors,
662 (unsigned char *)diskStructure->primaryDescriptor.volume_space_size);
663 cd9660_bothendian_word(1,
664 (unsigned char *)diskStructure->primaryDescriptor.volume_set_size);
665 cd9660_bothendian_word(1,
666 (unsigned char *)
667 diskStructure->primaryDescriptor.volume_sequence_number);
668 cd9660_bothendian_word(diskStructure->sectorSize,
669 (unsigned char *)
670 diskStructure->primaryDescriptor.logical_block_size);
671 cd9660_bothendian_dword(diskStructure->pathTableLength,
672 (unsigned char *)diskStructure->primaryDescriptor.path_table_size);
673
674 cd9660_731(diskStructure->primaryLittleEndianTableSector,
675 (u_char *)diskStructure->primaryDescriptor.type_l_path_table);
676 cd9660_732(diskStructure->primaryBigEndianTableSector,
677 (u_char *)diskStructure->primaryDescriptor.type_m_path_table);
678
679 diskStructure->primaryDescriptor.file_structure_version[0] = 1;
680
681 /* Pad all strings with spaces instead of nulls */
682 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.volume_id, 32);
683 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.system_id, 32);
684 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.volume_set_id,
685 128);
686 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.publisher_id,
687 128);
688 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.preparer_id,
689 128);
690 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.application_id,
691 128);
692 cd9660_pad_string_spaces(
693 diskStructure->primaryDescriptor.copyright_file_id, 37);
694 cd9660_pad_string_spaces(
695 diskStructure->primaryDescriptor.abstract_file_id, 37);
696 cd9660_pad_string_spaces(
697 diskStructure->primaryDescriptor.bibliographic_file_id, 37);
698
699 /* Setup dates */
700 cd9660_time_8426(
701 (unsigned char *)diskStructure->primaryDescriptor.creation_date,
702 tstamp);
703 cd9660_time_8426(
704 (unsigned char *)diskStructure->primaryDescriptor.modification_date,
705 tstamp);
706
707 #if 0
708 cd9660_set_date(diskStructure->primaryDescriptor.expiration_date,
709 tstamp);
710 #endif
711
712 memset(diskStructure->primaryDescriptor.expiration_date, '0', 16);
713 diskStructure->primaryDescriptor.expiration_date[16] = 0;
714
715 cd9660_time_8426(
716 (unsigned char *)diskStructure->primaryDescriptor.effective_date,
717 tstamp);
718 /* make this sane */
719 cd9660_time_915(diskStructure->rootNode->dot_record->isoDirRecord->date,
720 tstamp);
721 }
722
723 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)724 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record,
725 u_char ext_attr_length, u_char flags,
726 u_char name_len, const char * name)
727 {
728 record->ext_attr_length[0] = ext_attr_length;
729 record->flags[0] = ISO_FLAG_CLEAR | flags;
730 record->file_unit_size[0] = 0;
731 record->interleave[0] = 0;
732 cd9660_bothendian_word(1, record->volume_sequence_number);
733 record->name_len[0] = name_len;
734 memset(record->name, '\0', sizeof (record->name));
735 memcpy(record->name, name, name_len);
736 record->length[0] = 33 + name_len;
737
738 /* Todo : better rounding */
739 record->length[0] += (record->length[0] & 1) ? 1 : 0;
740 }
741
742 static void
cd9660_setup_root_node(iso9660_disk * diskStructure)743 cd9660_setup_root_node(iso9660_disk *diskStructure)
744 {
745 cd9660_populate_iso_dir_record(diskStructure->rootNode->isoDirRecord,
746 0, ISO_FLAG_DIRECTORY, 1, "\0");
747
748 }
749
750 /*********** SUPPORT FUNCTIONS ***********/
751 static int
cd9660_setup_volume_descriptors(iso9660_disk * diskStructure)752 cd9660_setup_volume_descriptors(iso9660_disk *diskStructure)
753 {
754 /* Boot volume descriptor should come second */
755 int sector = 16;
756 /* For now, a fixed 2 : PVD and terminator */
757 volume_descriptor *temp, *t;
758
759 /* Set up the PVD */
760 temp = emalloc(sizeof(*temp));
761 temp->volumeDescriptorData =
762 (unsigned char *)&diskStructure->primaryDescriptor;
763 temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD;
764 temp->volumeDescriptorData[6] = 1;
765 temp->sector = sector;
766 memcpy(temp->volumeDescriptorData + 1,
767 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
768 diskStructure->firstVolumeDescriptor = temp;
769
770 sector++;
771 /* Set up boot support if enabled. BVD must reside in sector 17 */
772 if (diskStructure->is_bootable) {
773 t = emalloc(sizeof(*t));
774 t->volumeDescriptorData = ecalloc(1, 2048);
775 temp->next = t;
776 temp = t;
777 t->sector = 17;
778 if (diskStructure->verbose_level > 0)
779 printf("Setting up boot volume descriptor\n");
780 cd9660_setup_boot_volume_descriptor(diskStructure, t);
781 sector++;
782 }
783
784 /* Set up the terminator */
785 t = emalloc(sizeof(*t));
786 t->volumeDescriptorData = ecalloc(1, 2048);
787 temp->next = t;
788 t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR;
789 t->next = NULL;
790 t->volumeDescriptorData[6] = 1;
791 t->sector = sector;
792 memcpy(t->volumeDescriptorData + 1,
793 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
794
795 sector++;
796 return sector;
797 }
798
799 #if 0
800 /*
801 * Populate EAR at some point. Not required, but is used by NetBSD's
802 * cd9660 support
803 */
804 static int
805 cd9660_fill_extended_attribute_record(cd9660node *node)
806 {
807 node->isoExtAttributes = emalloc(sizeof(*node->isoExtAttributes));
808 return 1;
809 }
810 #endif
811
812 static int
cd9660_translate_node_common(iso9660_disk * diskStructure,cd9660node * newnode)813 cd9660_translate_node_common(iso9660_disk *diskStructure, cd9660node *newnode)
814 {
815 time_t tstamp = stampst.st_ino ? stampst.st_mtime : time(NULL);
816 u_char flag;
817 char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING];
818
819 /* Now populate the isoDirRecord structure */
820 memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
821
822 (void)cd9660_convert_filename(diskStructure, newnode->node->name,
823 temp, !(S_ISDIR(newnode->node->type)));
824
825 flag = ISO_FLAG_CLEAR;
826 if (S_ISDIR(newnode->node->type))
827 flag |= ISO_FLAG_DIRECTORY;
828
829 cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0,
830 flag, strlen(temp), temp);
831
832 /* Set the various dates */
833
834 /* If we want to use the current date and time */
835
836 cd9660_time_915(newnode->isoDirRecord->date, tstamp);
837
838 cd9660_bothendian_dword(newnode->fileDataLength,
839 newnode->isoDirRecord->size);
840 /* If the file is a link, we want to set the size to 0 */
841 if (S_ISLNK(newnode->node->type))
842 newnode->fileDataLength = 0;
843
844 return 1;
845 }
846
847 /*
848 * Translate fsnode to cd9660node
849 * Translate filenames and other metadata, including dates, sizes,
850 * permissions, etc
851 * @param struct fsnode * The node generated by makefs
852 * @param struct cd9660node * The intermediate node to be written to
853 * @returns int 0 on failure, 1 on success
854 */
855 static int
cd9660_translate_node(iso9660_disk * diskStructure,fsnode * node,cd9660node * newnode)856 cd9660_translate_node(iso9660_disk *diskStructure, fsnode *node,
857 cd9660node *newnode)
858 {
859 if (node == NULL) {
860 if (diskStructure->verbose_level > 0)
861 printf("%s: NULL node passed, returning\n", __func__);
862 return 0;
863 }
864 newnode->isoDirRecord = emalloc(sizeof(*newnode->isoDirRecord));
865 /* Set the node pointer */
866 newnode->node = node;
867
868 /* Set the size */
869 if (!(S_ISDIR(node->type)))
870 newnode->fileDataLength = node->inode->st.st_size;
871
872 if (cd9660_translate_node_common(diskStructure, newnode) == 0)
873 return 0;
874
875 /* Finally, overwrite some of the values that are set by default */
876 cd9660_time_915(newnode->isoDirRecord->date,
877 stampst.st_ino ? stampst.st_mtime : node->inode->st.st_mtime);
878
879 return 1;
880 }
881
882 /*
883 * Compares two ISO filenames
884 * @param const char * The first file name
885 * @param const char * The second file name
886 * @returns : -1 if first is less than second, 0 if they are the same, 1 if
887 * the second is greater than the first
888 */
889 static int
cd9660_compare_filename(const char * first,const char * second)890 cd9660_compare_filename(const char *first, const char *second)
891 {
892 /*
893 * This can be made more optimal once it has been tested
894 * (the extra character, for example, is for testing)
895 */
896
897 int p1 = 0;
898 int p2 = 0;
899 char c1, c2;
900 /* First, on the filename */
901
902 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1
903 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) {
904 c1 = first[p1];
905 c2 = second[p2];
906 if (c1 == '.' && c2 =='.')
907 break;
908 else if (c1 == '.') {
909 p2++;
910 c1 = ' ';
911 } else if (c2 == '.') {
912 p1++;
913 c2 = ' ';
914 } else {
915 p1++;
916 p2++;
917 }
918
919 if (c1 < c2)
920 return -1;
921 else if (c1 > c2) {
922 return 1;
923 }
924 }
925
926 if (first[p1] == '.' && second[p2] == '.') {
927 p1++;
928 p2++;
929 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1
930 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) {
931 c1 = first[p1];
932 c2 = second[p2];
933 if (c1 == ';' && c2 == ';')
934 break;
935 else if (c1 == ';') {
936 p2++;
937 c1 = ' ';
938 } else if (c2 == ';') {
939 p1++;
940 c2 = ' ';
941 } else {
942 p1++;
943 p2++;
944 }
945
946 if (c1 < c2)
947 return -1;
948 else if (c1 > c2)
949 return 1;
950 }
951 }
952 return 0;
953 }
954
955 /*
956 * Insert a node into list with ISO sorting rules
957 * @param cd9660node * The head node of the list
958 * @param cd9660node * The node to be inserted
959 */
960 static void
cd9660_sorted_child_insert(cd9660node * parent,cd9660node * cn_new)961 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new)
962 {
963 int compare;
964 cd9660node *cn;
965 struct cd9660_children_head *head = &parent->cn_children;
966
967 /* TODO: Optimize? */
968 cn_new->parent = parent;
969
970 /*
971 * first will either be 0, the . or the ..
972 * if . or .., this means no other entry may be written before first
973 * if 0, the new node may be inserted at the head
974 */
975
976 TAILQ_FOREACH(cn, head, cn_next_child) {
977 /*
978 * Dont insert a node twice -
979 * that would cause an infinite loop
980 */
981 if (cn_new == cn)
982 return;
983
984 compare = cd9660_compare_filename(cn_new->isoDirRecord->name,
985 cn->isoDirRecord->name);
986
987 if (compare == 0)
988 compare = cd9660_compare_filename(cn_new->node->name,
989 cn->node->name);
990
991 if (compare < 0)
992 break;
993 }
994 if (cn == NULL)
995 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child);
996 else
997 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child);
998 }
999
1000 /*
1001 * Called After cd9660_sorted_child_insert
1002 * handles file collisions by suffixing each filname with ~n
1003 * where n represents the files respective place in the ordering
1004 */
1005 static int
cd9660_handle_collisions(iso9660_disk * diskStructure,cd9660node * colliding,int past)1006 cd9660_handle_collisions(iso9660_disk *diskStructure, cd9660node *colliding,
1007 int past)
1008 {
1009 cd9660node *iter, *next, *prev;
1010 int skip;
1011 int delete_chars = 0;
1012 int temp_past = past;
1013 int temp_skip;
1014 int flag = 0;
1015 cd9660node *end_of_range;
1016
1017 for (iter = TAILQ_FIRST(&colliding->cn_children);
1018 iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) {
1019 if (strcmp(iter->isoDirRecord->name,
1020 next->isoDirRecord->name) != 0) {
1021 iter = TAILQ_NEXT(iter, cn_next_child);
1022 continue;
1023 }
1024 flag = 1;
1025 temp_skip = skip = cd9660_count_collisions(iter);
1026 end_of_range = iter;
1027 while (temp_skip > 0) {
1028 temp_skip--;
1029 end_of_range = TAILQ_NEXT(end_of_range, cn_next_child);
1030 }
1031 temp_past = past;
1032 while (temp_past > 0) {
1033 if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL)
1034 end_of_range = next;
1035 else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL)
1036 iter = prev;
1037 else
1038 delete_chars++;
1039 temp_past--;
1040 }
1041 skip += past;
1042 iter = cd9660_rename_filename(diskStructure, iter, skip,
1043 delete_chars);
1044 }
1045 return flag;
1046 }
1047
1048
1049 static cd9660node *
cd9660_rename_filename(iso9660_disk * diskStructure,cd9660node * iter,int num,int delete_chars)1050 cd9660_rename_filename(iso9660_disk *diskStructure, cd9660node *iter, int num,
1051 int delete_chars)
1052 {
1053 int i = 0;
1054 int numbts, digit, digits, temp, powers, count;
1055 char *naming;
1056 int maxlength;
1057 char *tmp;
1058
1059 if (diskStructure->verbose_level > 0)
1060 printf("Rename_filename called\n");
1061
1062 assert(1 <= diskStructure->isoLevel && diskStructure->isoLevel <= 2);
1063 /* TODO : A LOT of chanes regarding 8.3 filenames */
1064 if (diskStructure->isoLevel == 1)
1065 maxlength = 8;
1066 else if (diskStructure->isoLevel == 2)
1067 maxlength = 31;
1068 else
1069 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION;
1070
1071 tmp = emalloc(ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1072
1073 while (i < num && iter) {
1074 powers = 1;
1075 count = 0;
1076 digits = 1;
1077 while (((int)(i / powers) ) >= 10) {
1078 digits++;
1079 powers = powers * 10;
1080 }
1081
1082 naming = iter->o_name;
1083
1084 /*
1085 while ((*naming != '.') && (*naming != ';')) {
1086 naming++;
1087 count++;
1088 }
1089 */
1090
1091 while (count < maxlength) {
1092 if (*naming == ';')
1093 break;
1094 naming++;
1095 count++;
1096 }
1097
1098 if ((count + digits) < maxlength)
1099 numbts = count;
1100 else
1101 numbts = maxlength - (digits);
1102 numbts -= delete_chars;
1103
1104 /* 8.3 rules - keep the extension, add before the dot */
1105
1106 /*
1107 * This code makes a bunch of assumptions.
1108 * See if you can spot them all :)
1109 */
1110
1111 #if 0
1112 if (diskStructure->isoLevel == 1) {
1113 numbts = 8 - digits - delete_chars;
1114 if (dot < 0) {
1115
1116 } else {
1117 if (dot < 8) {
1118 memmove(&tmp[numbts],&tmp[dot],4);
1119 }
1120 }
1121 }
1122 #endif
1123
1124 /* (copying just the filename before the '.' */
1125 memcpy(tmp, (iter->o_name), numbts);
1126
1127 /* adding the appropriate number following the name */
1128 temp = i;
1129 while (digits > 0) {
1130 digit = (int)(temp / powers);
1131 temp = temp - digit * powers;
1132 sprintf(&tmp[numbts] , "%d", digit);
1133 digits--;
1134 numbts++;
1135 powers = powers / 10;
1136 }
1137
1138 while ((*naming != ';') && (numbts < maxlength)) {
1139 tmp[numbts] = (*naming);
1140 naming++;
1141 numbts++;
1142 }
1143
1144 tmp[numbts] = ';';
1145 tmp[numbts+1] = '1';
1146 tmp[numbts+2] = '\0';
1147
1148 /*
1149 * now tmp has exactly the identifier
1150 * we want so we'll copy it back to record
1151 */
1152 memcpy((iter->isoDirRecord->name), tmp, numbts + 3);
1153
1154 iter = TAILQ_NEXT(iter, cn_next_child);
1155 i++;
1156 }
1157
1158 free(tmp);
1159 return iter;
1160 }
1161
1162 /* Todo: Figure out why these functions are nec. */
1163 static void
cd9660_copy_filenames(iso9660_disk * diskStructure,cd9660node * node)1164 cd9660_copy_filenames(iso9660_disk *diskStructure, cd9660node *node)
1165 {
1166 cd9660node *cn;
1167
1168 if (TAILQ_EMPTY(&node->cn_children))
1169 return;
1170
1171 if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) {
1172 debug_print_tree(diskStructure, diskStructure->rootNode, 0);
1173 exit(1);
1174 }
1175
1176 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1177 cd9660_copy_filenames(diskStructure, cn);
1178 memcpy(cn->o_name, cn->isoDirRecord->name,
1179 ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1180 }
1181 }
1182
1183 static void
cd9660_sorting_nodes(cd9660node * node)1184 cd9660_sorting_nodes(cd9660node *node)
1185 {
1186 cd9660node *cn;
1187
1188 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child)
1189 cd9660_sorting_nodes(cn);
1190 cd9660_sort_nodes(node);
1191 }
1192
1193 /* XXX Bubble sort. */
1194 static void
cd9660_sort_nodes(cd9660node * node)1195 cd9660_sort_nodes(cd9660node *node)
1196 {
1197 cd9660node *cn, *next;
1198
1199 do {
1200 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1201 if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL)
1202 return;
1203 else if (strcmp(next->isoDirRecord->name,
1204 cn->isoDirRecord->name) >= 0)
1205 continue;
1206 TAILQ_REMOVE(&node->cn_children, next, cn_next_child);
1207 TAILQ_INSERT_BEFORE(cn, next, cn_next_child);
1208 break;
1209 }
1210 } while (cn != NULL);
1211 }
1212
1213 static int
cd9660_count_collisions(cd9660node * copy)1214 cd9660_count_collisions(cd9660node *copy)
1215 {
1216 int count = 0;
1217 cd9660node *iter, *next;
1218
1219 for (iter = copy;
1220 (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;
1221 iter = next) {
1222 if (cd9660_compare_filename(iter->isoDirRecord->name,
1223 next->isoDirRecord->name) == 0)
1224 count++;
1225 else
1226 return count;
1227 }
1228 #if 0
1229 if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) {
1230 printf("%s: count is %i\n", __func__, count);
1231 compare = cd9660_compare_filename(iter->isoDirRecord->name,
1232 next->isoDirRecord->name);
1233 if (compare == 0) {
1234 count++;
1235 return cd9660_recurse_on_collision(next, count);
1236 } else
1237 return count;
1238 }
1239 #endif
1240 return count;
1241 }
1242
1243 static cd9660node *
cd9660_rrip_move_directory(iso9660_disk * diskStructure,cd9660node * dir)1244 cd9660_rrip_move_directory(iso9660_disk *diskStructure, cd9660node *dir)
1245 {
1246 char newname[9];
1247 cd9660node *tfile;
1248
1249 /*
1250 * This function needs to:
1251 * 1) Create an empty virtual file in place of the old directory
1252 * 2) Point the virtual file to the new directory
1253 * 3) Point the relocated directory to its old parent
1254 * 4) Move the directory specified by dir into rr_moved_dir,
1255 * and rename it to "diskStructure->rock_ridge_move_count" (as a string)
1256 */
1257
1258 /* First see if the moved directory even exists */
1259 if (diskStructure->rr_moved_dir == NULL) {
1260 diskStructure->rr_moved_dir = cd9660_create_directory(
1261 diskStructure, ISO_RRIP_DEFAULT_MOVE_DIR_NAME,
1262 diskStructure->rootNode, dir);
1263 if (diskStructure->rr_moved_dir == NULL)
1264 return 0;
1265 cd9660_time_915(diskStructure->rr_moved_dir->isoDirRecord->date,
1266 stampst.st_ino ? stampst.st_mtime : start_time.tv_sec);
1267 }
1268
1269 /* Create a file with the same ORIGINAL name */
1270 tfile = cd9660_create_file(diskStructure, dir->node->name, dir->parent,
1271 dir);
1272 if (tfile == NULL)
1273 return NULL;
1274
1275 diskStructure->rock_ridge_move_count++;
1276 snprintf(newname, sizeof(newname), "%08i",
1277 diskStructure->rock_ridge_move_count);
1278
1279 /* Point to old parent */
1280 dir->rr_real_parent = dir->parent;
1281
1282 /* Place the placeholder file */
1283 if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) {
1284 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile,
1285 cn_next_child);
1286 } else {
1287 cd9660_sorted_child_insert(dir->rr_real_parent, tfile);
1288 }
1289
1290 /* Point to new parent */
1291 dir->parent = diskStructure->rr_moved_dir;
1292
1293 /* Point the file to the moved directory */
1294 tfile->rr_relocated = dir;
1295
1296 /* Actually move the directory */
1297 cd9660_sorted_child_insert(diskStructure->rr_moved_dir, dir);
1298
1299 /* TODO: Inherit permissions / ownership (basically the entire inode) */
1300
1301 /* Set the new name */
1302 memset(dir->isoDirRecord->name, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1303 strncpy(dir->isoDirRecord->name, newname, 8);
1304 dir->isoDirRecord->length[0] = 34 + 8;
1305 dir->isoDirRecord->name_len[0] = 8;
1306
1307 return dir;
1308 }
1309
1310 static int
cd9660_add_dot_records(iso9660_disk * diskStructure,cd9660node * root)1311 cd9660_add_dot_records(iso9660_disk *diskStructure, cd9660node *root)
1312 {
1313 struct cd9660_children_head *head = &root->cn_children;
1314 cd9660node *cn;
1315
1316 TAILQ_FOREACH(cn, head, cn_next_child) {
1317 if ((cn->type & CD9660_TYPE_DIR) == 0)
1318 continue;
1319 /* Recursion first */
1320 cd9660_add_dot_records(diskStructure, cn);
1321 }
1322 cd9660_create_special_directory(diskStructure, CD9660_TYPE_DOT, root);
1323 cd9660_create_special_directory(diskStructure, CD9660_TYPE_DOTDOT,
1324 root);
1325 return 1;
1326 }
1327
1328 /*
1329 * Convert node to cd9660 structure
1330 * This function is designed to be called recursively on the root node of
1331 * the filesystem
1332 * Lots of recursion going on here, want to make sure it is efficient
1333 * @param struct fsnode * The root node to be converted
1334 * @param struct cd9660* The parent node (should not be NULL)
1335 * @param int Current directory depth
1336 * @param int* Running count of the number of directories that are being created
1337 */
1338 static void
cd9660_convert_structure(iso9660_disk * diskStructure,fsnode * root,cd9660node * parent_node,int level,int * numDirectories,int * error)1339 cd9660_convert_structure(iso9660_disk *diskStructure, fsnode *root,
1340 cd9660node *parent_node, int level, int *numDirectories, int *error)
1341 {
1342 fsnode *iterator = root;
1343 cd9660node *this_node;
1344 int working_level;
1345 int add;
1346 int flag = 0;
1347 int counter = 0;
1348
1349 /*
1350 * Newer, more efficient method, reduces recursion depth
1351 */
1352 if (root == NULL) {
1353 warnx("%s: root is null", __func__);
1354 return;
1355 }
1356
1357 /* Test for an empty directory - makefs still gives us the . record */
1358 if ((S_ISDIR(root->type)) && (root->name[0] == '.')
1359 && (root->name[1] == '\0')) {
1360 root = root->next;
1361 if (root == NULL)
1362 return;
1363 }
1364 if ((this_node = cd9660_allocate_cd9660node()) == NULL) {
1365 CD9660_MEM_ALLOC_ERROR(__func__);
1366 }
1367
1368 /*
1369 * To reduce the number of recursive calls, we will iterate over
1370 * the next pointers to the right.
1371 */
1372 while (iterator != NULL) {
1373 add = 1;
1374 /*
1375 * Increment the directory count if this is a directory
1376 * Ignore "." entries. We will generate them later
1377 */
1378 if (!S_ISDIR(iterator->type) ||
1379 strcmp(iterator->name, ".") != 0) {
1380
1381 /* Translate the node, including its filename */
1382 this_node->parent = parent_node;
1383 cd9660_translate_node(diskStructure, iterator,
1384 this_node);
1385 this_node->level = level;
1386
1387 if (S_ISDIR(iterator->type)) {
1388 (*numDirectories)++;
1389 this_node->type = CD9660_TYPE_DIR;
1390 working_level = level + 1;
1391
1392 /*
1393 * If at level 8, directory would be at 8
1394 * and have children at 9 which is not
1395 * allowed as per ISO spec
1396 */
1397 if (level == 8) {
1398 if ((!diskStructure->allow_deep_trees) &&
1399 (!diskStructure->rock_ridge_enabled)) {
1400 warnx("error: found entry "
1401 "with depth greater "
1402 "than 8.");
1403 (*error) = 1;
1404 return;
1405 } else if (diskStructure->
1406 rock_ridge_enabled) {
1407 working_level = 3;
1408 /*
1409 * Moved directory is actually
1410 * at level 2.
1411 */
1412 this_node->level =
1413 working_level - 1;
1414 if (cd9660_rrip_move_directory(
1415 diskStructure,
1416 this_node) == NULL) {
1417 warnx("Failure in "
1418 "cd9660_rrip_"
1419 "move_directory"
1420 );
1421 (*error) = 1;
1422 return;
1423 }
1424 add = 0;
1425 }
1426 }
1427
1428 /* Do the recursive call on the children */
1429 if (iterator->child != NULL) {
1430 cd9660_convert_structure(diskStructure,
1431 iterator->child, this_node,
1432 working_level,
1433 numDirectories, error);
1434
1435 if ((*error) == 1) {
1436 warnx("%s: Error on recursive "
1437 "call", __func__);
1438 return;
1439 }
1440 }
1441
1442 } else {
1443 /* Only directories should have children */
1444 assert(iterator->child == NULL);
1445
1446 this_node->type = CD9660_TYPE_FILE;
1447 }
1448
1449 /*
1450 * Finally, do a sorted insert
1451 */
1452 if (add) {
1453 cd9660_sorted_child_insert(
1454 parent_node, this_node);
1455 }
1456
1457 /*Allocate new temp_node */
1458 if (iterator->next != NULL) {
1459 this_node = cd9660_allocate_cd9660node();
1460 if (this_node == NULL)
1461 CD9660_MEM_ALLOC_ERROR(__func__);
1462 }
1463 }
1464 iterator = iterator->next;
1465 }
1466
1467 /* cd9660_handle_collisions(first_node); */
1468
1469 /* TODO: need cleanup */
1470 cd9660_copy_filenames(diskStructure, parent_node);
1471
1472 do {
1473 flag = cd9660_handle_collisions(diskStructure, parent_node,
1474 counter);
1475 counter++;
1476 cd9660_sorting_nodes(parent_node);
1477 } while ((flag == 1) && (counter < 100));
1478 }
1479
1480 /*
1481 * Clean up the cd9660node tree
1482 * This is designed to be called recursively on the root node
1483 * @param struct cd9660node *root The node to free
1484 * @returns void
1485 */
1486 static void
cd9660_free_structure(cd9660node * root)1487 cd9660_free_structure(cd9660node *root)
1488 {
1489 cd9660node *cn;
1490
1491 while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) {
1492 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child);
1493 cd9660_free_structure(cn);
1494 }
1495 free(root);
1496 }
1497
1498 /*
1499 * Be a little more memory conservative:
1500 * instead of having the TAILQ_ENTRY as part of the cd9660node,
1501 * just create a temporary structure
1502 */
1503 static struct ptq_entry
1504 {
1505 TAILQ_ENTRY(ptq_entry) ptq;
1506 cd9660node *node;
1507 } *n;
1508
1509 #define PTQUEUE_NEW(n,s,r,t){\
1510 n = emalloc(sizeof(struct s)); \
1511 n->node = t;\
1512 }
1513
1514 /*
1515 * Generate the path tables
1516 * The specific implementation of this function is left as an exercise to the
1517 * programmer. It could be done recursively. Make sure you read how the path
1518 * table has to be laid out, it has levels.
1519 * @param struct iso9660_disk *disk The disk image
1520 * @returns int The number of built path tables (between 1 and 4), 0 on failure
1521 */
1522 static int
cd9660_generate_path_table(iso9660_disk * diskStructure)1523 cd9660_generate_path_table(iso9660_disk *diskStructure)
1524 {
1525 cd9660node *cn, *dirNode = diskStructure->rootNode;
1526 cd9660node *last = dirNode;
1527 int pathTableSize = 0; /* computed as we go */
1528 int counter = 1; /* root gets a count of 0 */
1529
1530 TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head;
1531 TAILQ_INIT(&pt_head);
1532
1533 PTQUEUE_NEW(n, ptq_entry, -1, diskStructure->rootNode);
1534
1535 /* Push the root node */
1536 TAILQ_INSERT_HEAD(&pt_head, n, ptq);
1537
1538 /* Breadth-first traversal of file structure */
1539 while (pt_head.tqh_first != 0) {
1540 n = pt_head.tqh_first;
1541 dirNode = n->node;
1542 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq);
1543 free(n);
1544
1545 /* Update the size */
1546 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE
1547 + dirNode->isoDirRecord->name_len[0]+
1548 (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1);
1549 /* includes the padding bit */
1550
1551 dirNode->ptnumber=counter;
1552 if (dirNode != last) {
1553 last->ptnext = dirNode;
1554 dirNode->ptprev = last;
1555 }
1556 last = dirNode;
1557
1558 /* Push children onto queue */
1559 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) {
1560 /*
1561 * Dont add the DOT and DOTDOT types to the path
1562 * table.
1563 */
1564 if ((cn->type != CD9660_TYPE_DOT)
1565 && (cn->type != CD9660_TYPE_DOTDOT)) {
1566
1567 if (S_ISDIR(cn->node->type)) {
1568 PTQUEUE_NEW(n, ptq_entry, -1, cn);
1569 TAILQ_INSERT_TAIL(&pt_head, n, ptq);
1570 }
1571 }
1572 }
1573 counter++;
1574 }
1575 return pathTableSize;
1576 }
1577
1578 void
cd9660_compute_full_filename(cd9660node * node,char * buf)1579 cd9660_compute_full_filename(cd9660node *node, char *buf)
1580 {
1581 int len;
1582
1583 len = CD9660MAXPATH + 1;
1584 len = snprintf(buf, len, "%s/%s/%s", node->node->root,
1585 node->node->path, node->node->name);
1586 if (len > CD9660MAXPATH)
1587 errx(EXIT_FAILURE, "Pathname too long.");
1588 }
1589
1590 /* NEW filename conversion method */
1591 typedef int(*cd9660_filename_conversion_functor)(iso9660_disk *, const char *,
1592 char *, int);
1593
1594
1595 /*
1596 * TODO: These two functions are almost identical.
1597 * Some code cleanup is possible here
1598 *
1599 * XXX bounds checking!
1600 */
1601 static int
cd9660_level1_convert_filename(iso9660_disk * diskStructure,const char * oldname,char * newname,int is_file)1602 cd9660_level1_convert_filename(iso9660_disk *diskStructure, const char *oldname,
1603 char *newname, int is_file)
1604 {
1605 /*
1606 * ISO 9660 : 10.1
1607 * File Name shall not contain more than 8 d or d1 characters
1608 * File Name Extension shall not contain more than 3 d or d1 characters
1609 * Directory Identifier shall not contain more than 8 d or d1 characters
1610 */
1611 int namelen = 0;
1612 int extlen = 0;
1613 int found_ext = 0;
1614
1615 while (*oldname != '\0' && extlen < 3) {
1616 /* Handle period first, as it is special */
1617 if (*oldname == '.') {
1618 if (found_ext) {
1619 *newname++ = '_';
1620 extlen ++;
1621 }
1622 else {
1623 *newname++ = '.';
1624 found_ext = 1;
1625 }
1626 } else {
1627 /* cut RISC OS file type off ISO name */
1628 if (diskStructure->archimedes_enabled &&
1629 *oldname == ',' && strlen(oldname) == 4)
1630 break;
1631
1632 /* Enforce 12.3 / 8 */
1633 if (namelen == 8 && !found_ext)
1634 break;
1635
1636 if (islower((unsigned char)*oldname))
1637 *newname++ = toupper((unsigned char)*oldname);
1638 else if (isupper((unsigned char)*oldname)
1639 || isdigit((unsigned char)*oldname))
1640 *newname++ = *oldname;
1641 else
1642 *newname++ = '_';
1643
1644 if (found_ext)
1645 extlen++;
1646 else
1647 namelen++;
1648 }
1649 oldname++;
1650 }
1651 if (is_file) {
1652 if (!found_ext && !diskStructure->omit_trailing_period)
1653 *newname++ = '.';
1654 /* Add version */
1655 sprintf(newname, ";%i", 1);
1656 }
1657 return namelen + extlen + found_ext;
1658 }
1659
1660 /* XXX bounds checking! */
1661 static int
cd9660_level2_convert_filename(iso9660_disk * diskStructure,const char * oldname,char * newname,int is_file)1662 cd9660_level2_convert_filename(iso9660_disk *diskStructure, const char *oldname,
1663 char *newname, int is_file)
1664 {
1665 /*
1666 * ISO 9660 : 7.5.1
1667 * File name : 0+ d or d1 characters
1668 * separator 1 (.)
1669 * File name extension : 0+ d or d1 characters
1670 * separator 2 (;)
1671 * File version number (5 characters, 1-32767)
1672 * 1 <= Sum of File name and File name extension <= 30
1673 */
1674 int namelen = 0;
1675 int extlen = 0;
1676 int found_ext = 0;
1677
1678 while (*oldname != '\0' && namelen + extlen < 30) {
1679 /* Handle period first, as it is special */
1680 if (*oldname == '.') {
1681 if (found_ext) {
1682 if (diskStructure->allow_multidot) {
1683 *newname++ = '.';
1684 } else {
1685 *newname++ = '_';
1686 }
1687 extlen ++;
1688 }
1689 else {
1690 *newname++ = '.';
1691 found_ext = 1;
1692 }
1693 } else {
1694 /* cut RISC OS file type off ISO name */
1695 if (diskStructure->archimedes_enabled &&
1696 *oldname == ',' && strlen(oldname) == 4)
1697 break;
1698
1699 if (islower((unsigned char)*oldname))
1700 *newname++ = toupper((unsigned char)*oldname);
1701 else if (isupper((unsigned char)*oldname) ||
1702 isdigit((unsigned char)*oldname))
1703 *newname++ = *oldname;
1704 else if (diskStructure->allow_multidot &&
1705 *oldname == '.') {
1706 *newname++ = '.';
1707 } else {
1708 *newname++ = '_';
1709 }
1710
1711 if (found_ext)
1712 extlen++;
1713 else
1714 namelen++;
1715 }
1716 oldname ++;
1717 }
1718 if (is_file) {
1719 if (!found_ext && !diskStructure->omit_trailing_period)
1720 *newname++ = '.';
1721 /* Add version */
1722 sprintf(newname, ";%i", 1);
1723 }
1724 return namelen + extlen + found_ext;
1725 }
1726
1727 #if 0
1728 static int
1729 cd9660_joliet_convert_filename(iso9660_disk *diskStructure, const char *oldname,
1730 char *newname, int is_file)
1731 {
1732 /* TODO: implement later, move to cd9660_joliet.c ?? */
1733 }
1734 #endif
1735
1736
1737 /*
1738 * Convert a file name to ISO compliant file name
1739 * @param char * oldname The original filename
1740 * @param char ** newname The new file name, in the appropriate character
1741 * set and of appropriate length
1742 * @param int 1 if file, 0 if directory
1743 * @returns int The length of the new string
1744 */
1745 static int
cd9660_convert_filename(iso9660_disk * diskStructure,const char * oldname,char * newname,int is_file)1746 cd9660_convert_filename(iso9660_disk *diskStructure, const char *oldname,
1747 char *newname, int is_file)
1748 {
1749 assert(1 <= diskStructure->isoLevel && diskStructure->isoLevel <= 2);
1750 /* NEW */
1751 cd9660_filename_conversion_functor conversion_function = NULL;
1752 if (diskStructure->isoLevel == 1)
1753 conversion_function = &cd9660_level1_convert_filename;
1754 else if (diskStructure->isoLevel == 2)
1755 conversion_function = &cd9660_level2_convert_filename;
1756 return (*conversion_function)(diskStructure, oldname, newname, is_file);
1757 }
1758
1759 int
cd9660_compute_record_size(iso9660_disk * diskStructure,cd9660node * node)1760 cd9660_compute_record_size(iso9660_disk *diskStructure, cd9660node *node)
1761 {
1762 int size = node->isoDirRecord->length[0];
1763
1764 if (diskStructure->rock_ridge_enabled)
1765 size += node->susp_entry_size;
1766 size += node->su_tail_size;
1767 size += size & 1; /* Ensure length of record is even. */
1768 assert(size <= 254);
1769 return size;
1770 }
1771
1772 static void
cd9660_populate_dot_records(iso9660_disk * diskStructure,cd9660node * node)1773 cd9660_populate_dot_records(iso9660_disk *diskStructure, cd9660node *node)
1774 {
1775 node->dot_record->fileDataSector = node->fileDataSector;
1776 memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34);
1777 node->dot_record->isoDirRecord->name_len[0] = 1;
1778 node->dot_record->isoDirRecord->name[0] = 0;
1779 node->dot_record->isoDirRecord->name[1] = 0;
1780 node->dot_record->isoDirRecord->length[0] = 34;
1781 node->dot_record->fileRecordSize =
1782 cd9660_compute_record_size(diskStructure, node->dot_record);
1783
1784 if (node == diskStructure->rootNode) {
1785 node->dot_dot_record->fileDataSector = node->fileDataSector;
1786 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord,
1787 34);
1788 } else {
1789 node->dot_dot_record->fileDataSector =
1790 node->parent->fileDataSector;
1791 memcpy(node->dot_dot_record->isoDirRecord,
1792 node->parent->isoDirRecord,34);
1793 }
1794 node->dot_dot_record->isoDirRecord->name_len[0] = 1;
1795 node->dot_dot_record->isoDirRecord->name[0] = 1;
1796 node->dot_dot_record->isoDirRecord->name[1] = 0;
1797 node->dot_dot_record->isoDirRecord->length[0] = 34;
1798 node->dot_dot_record->fileRecordSize =
1799 cd9660_compute_record_size(diskStructure, node->dot_dot_record);
1800 }
1801
1802 /*
1803 * @param struct cd9660node *node The node
1804 * @param int The offset (in bytes) - SHOULD align to the beginning of a sector
1805 * @returns int The total size of files and directory entries (should be
1806 * a multiple of sector size)
1807 */
1808 static int64_t
cd9660_compute_offsets(iso9660_disk * diskStructure,cd9660node * node,int64_t startOffset)1809 cd9660_compute_offsets(iso9660_disk *diskStructure, cd9660node *node,
1810 int64_t startOffset)
1811 {
1812 /*
1813 * This function needs to compute the size of directory records and
1814 * runs, file lengths, and set the appropriate variables both in
1815 * cd9660node and isoDirEntry
1816 */
1817 int64_t used_bytes = 0;
1818 int64_t current_sector_usage = 0;
1819 cd9660node *child;
1820 fsinode *inode;
1821 int64_t r;
1822
1823 assert(node != NULL);
1824
1825
1826 /*
1827 * NOTE : There needs to be some special case detection for
1828 * the "real root" node, since for it, node->node is undefined
1829 */
1830
1831 node->fileDataSector = -1;
1832
1833 if (node->type & CD9660_TYPE_DIR) {
1834 node->fileRecordSize = cd9660_compute_record_size(
1835 diskStructure, node);
1836 /*Set what sector this directory starts in*/
1837 node->fileDataSector =
1838 CD9660_BLOCKS(diskStructure->sectorSize,startOffset);
1839
1840 cd9660_bothendian_dword(node->fileDataSector,
1841 node->isoDirRecord->extent);
1842
1843 /*
1844 * First loop over children, need to know the size of
1845 * their directory records
1846 */
1847 node->fileSectorsUsed = 1;
1848 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) {
1849 node->fileDataLength +=
1850 cd9660_compute_record_size(diskStructure, child);
1851 if ((cd9660_compute_record_size(diskStructure, child) +
1852 current_sector_usage) >=
1853 diskStructure->sectorSize) {
1854 current_sector_usage = 0;
1855 node->fileSectorsUsed++;
1856 }
1857
1858 current_sector_usage +=
1859 cd9660_compute_record_size(diskStructure, child);
1860 }
1861
1862 cd9660_bothendian_dword(node->fileSectorsUsed *
1863 diskStructure->sectorSize,node->isoDirRecord->size);
1864
1865 /*
1866 * This should point to the sector after the directory
1867 * record (or, the first byte in that sector)
1868 */
1869 used_bytes += node->fileSectorsUsed * diskStructure->sectorSize;
1870
1871 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1872 child != NULL; child = TAILQ_NEXT(child, cn_next_child)) {
1873 /* Directories need recursive call */
1874 if (S_ISDIR(child->node->type)) {
1875 r = cd9660_compute_offsets(diskStructure, child,
1876 used_bytes + startOffset);
1877
1878 if (r != -1)
1879 used_bytes += r;
1880 else
1881 return -1;
1882 }
1883 }
1884
1885 /* Explicitly set the . and .. records */
1886 cd9660_populate_dot_records(diskStructure, node);
1887
1888 /* Finally, do another iteration to write the file data*/
1889 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1890 child != NULL;
1891 child = TAILQ_NEXT(child, cn_next_child)) {
1892 /* Files need extent set */
1893 if (S_ISDIR(child->node->type))
1894 continue;
1895 child->fileRecordSize =
1896 cd9660_compute_record_size(diskStructure, child);
1897
1898 child->fileSectorsUsed =
1899 CD9660_BLOCKS(diskStructure->sectorSize,
1900 child->fileDataLength);
1901
1902 inode = child->node->inode;
1903 if ((inode->flags & FI_ALLOCATED) == 0) {
1904 inode->ino =
1905 CD9660_BLOCKS(diskStructure->sectorSize,
1906 used_bytes + startOffset);
1907 inode->flags |= FI_ALLOCATED;
1908 used_bytes += child->fileSectorsUsed *
1909 diskStructure->sectorSize;
1910 } else {
1911 INODE_WARNX(("%s: already allocated inode %d "
1912 "data sectors at %" PRIu32, __func__,
1913 (int)inode->st.st_ino, inode->ino));
1914 }
1915 child->fileDataSector = inode->ino;
1916 cd9660_bothendian_dword(child->fileDataSector,
1917 child->isoDirRecord->extent);
1918 }
1919 }
1920
1921 return used_bytes;
1922 }
1923
1924 #if 0
1925 /* Might get rid of this func */
1926 static int
1927 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file)
1928 {
1929 to->node->inode->st.st_dev = 0;
1930 to->node->inode->st.st_ino = 0;
1931 to->node->inode->st.st_size = 0;
1932 to->node->inode->st.st_blksize = from->node->inode->st.st_blksize;
1933 to->node->inode->st.st_atime = from->node->inode->st.st_atime;
1934 to->node->inode->st.st_mtime = from->node->inode->st.st_mtime;
1935 to->node->inode->st.st_ctime = from->node->inode->st.st_ctime;
1936 to->node->inode->st.st_uid = from->node->inode->st.st_uid;
1937 to->node->inode->st.st_gid = from->node->inode->st.st_gid;
1938 to->node->inode->st.st_mode = from->node->inode->st.st_mode;
1939 /* Clear out type */
1940 to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT);
1941 if (file)
1942 to->node->inode->st.st_mode |= S_IFREG;
1943 else
1944 to->node->inode->st.st_mode |= S_IFDIR;
1945 return 1;
1946 }
1947 #endif
1948
1949 static cd9660node *
cd9660_create_virtual_entry(iso9660_disk * diskStructure,const char * name,cd9660node * parent,int file,int insert)1950 cd9660_create_virtual_entry(iso9660_disk *diskStructure, const char *name,
1951 cd9660node *parent, int file, int insert)
1952 {
1953 cd9660node *temp;
1954 fsnode * tfsnode;
1955
1956 assert(parent != NULL);
1957
1958 temp = cd9660_allocate_cd9660node();
1959 if (temp == NULL)
1960 return NULL;
1961
1962 tfsnode = emalloc(sizeof(*tfsnode));
1963 tfsnode->name = estrdup(name);
1964 temp->isoDirRecord = emalloc(sizeof(*temp->isoDirRecord));
1965
1966 cd9660_convert_filename(diskStructure, tfsnode->name,
1967 temp->isoDirRecord->name, file);
1968
1969 temp->node = tfsnode;
1970 temp->parent = parent;
1971
1972 if (insert) {
1973 if (temp->parent != NULL) {
1974 temp->level = temp->parent->level + 1;
1975 if (!TAILQ_EMPTY(&temp->parent->cn_children))
1976 cd9660_sorted_child_insert(temp->parent, temp);
1977 else
1978 TAILQ_INSERT_HEAD(&temp->parent->cn_children,
1979 temp, cn_next_child);
1980 }
1981 }
1982
1983 if (parent->node != NULL) {
1984 tfsnode->type = parent->node->type;
1985 }
1986
1987 /* Clear out file type bits */
1988 tfsnode->type &= ~(S_IFMT);
1989 if (file)
1990 tfsnode->type |= S_IFREG;
1991 else
1992 tfsnode->type |= S_IFDIR;
1993
1994 /* Indicate that there is no spec entry (inode) */
1995 tfsnode->flags &= ~(FSNODE_F_HASSPEC);
1996 #if 0
1997 cd9660_copy_stat_info(parent, temp, file);
1998 #endif
1999 return temp;
2000 }
2001
2002 static cd9660node *
cd9660_create_file(iso9660_disk * diskStructure,const char * name,cd9660node * parent,cd9660node * me)2003 cd9660_create_file(iso9660_disk *diskStructure, const char *name,
2004 cd9660node *parent, cd9660node *me)
2005 {
2006 cd9660node *temp;
2007
2008 temp = cd9660_create_virtual_entry(diskStructure, name, parent, 1, 1);
2009 if (temp == NULL)
2010 return NULL;
2011
2012 temp->fileDataLength = 0;
2013
2014 temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL;
2015
2016 temp->node->inode = ecalloc(1, sizeof(*temp->node->inode));
2017 *temp->node->inode = *me->node->inode;
2018
2019 if (cd9660_translate_node_common(diskStructure, temp) == 0)
2020 return NULL;
2021 return temp;
2022 }
2023
2024 /*
2025 * Create a new directory which does not exist on disk
2026 * @param const char * name The name to assign to the directory
2027 * @param const char * parent Pointer to the parent directory
2028 * @returns cd9660node * Pointer to the new directory
2029 */
2030 static cd9660node *
cd9660_create_directory(iso9660_disk * diskStructure,const char * name,cd9660node * parent,cd9660node * me)2031 cd9660_create_directory(iso9660_disk *diskStructure, const char *name,
2032 cd9660node *parent, cd9660node *me)
2033 {
2034 cd9660node *temp;
2035
2036 temp = cd9660_create_virtual_entry(diskStructure, name, parent, 0, 1);
2037 if (temp == NULL)
2038 return NULL;
2039 temp->node->type |= S_IFDIR;
2040
2041 temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL;
2042
2043 temp->node->inode = ecalloc(1, sizeof(*temp->node->inode));
2044 *temp->node->inode = *me->node->inode;
2045
2046 if (cd9660_translate_node_common(diskStructure, temp) == 0)
2047 return NULL;
2048 return temp;
2049 }
2050
2051 static cd9660node *
cd9660_create_special_directory(iso9660_disk * diskStructure,u_char type,cd9660node * parent)2052 cd9660_create_special_directory(iso9660_disk *diskStructure, u_char type,
2053 cd9660node *parent)
2054 {
2055 cd9660node *temp, *first;
2056 char na[2];
2057
2058 assert(parent != NULL);
2059
2060 if (type == CD9660_TYPE_DOT)
2061 na[0] = 0;
2062 else if (type == CD9660_TYPE_DOTDOT)
2063 na[0] = 1;
2064 else
2065 return 0;
2066
2067 na[1] = 0;
2068 if ((temp = cd9660_create_virtual_entry(diskStructure, na, parent,
2069 0, 0)) == NULL)
2070 return NULL;
2071
2072 temp->parent = parent;
2073 temp->type = type;
2074 temp->isoDirRecord->length[0] = 34;
2075 /* Dot record is always first */
2076 if (type == CD9660_TYPE_DOT) {
2077 parent->dot_record = temp;
2078 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child);
2079 /* DotDot should be second */
2080 } else if (type == CD9660_TYPE_DOTDOT) {
2081 parent->dot_dot_record = temp;
2082 /*
2083 * If the first child is the dot record, insert
2084 * this second. Otherwise, insert it at the head.
2085 */
2086 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL ||
2087 (first->type & CD9660_TYPE_DOT) == 0) {
2088 TAILQ_INSERT_HEAD(&parent->cn_children, temp,
2089 cn_next_child);
2090 } else {
2091 TAILQ_INSERT_AFTER(&parent->cn_children, first, temp,
2092 cn_next_child);
2093 }
2094 }
2095
2096 return temp;
2097 }
2098
2099 static int
cd9660_add_generic_bootimage(iso9660_disk * diskStructure,const char * bootimage)2100 cd9660_add_generic_bootimage(iso9660_disk *diskStructure, const char *bootimage)
2101 {
2102 struct stat stbuf;
2103
2104 assert(bootimage != NULL);
2105
2106 if (*bootimage == '\0') {
2107 warnx("Error: Boot image must be a filename");
2108 return 0;
2109 }
2110
2111 diskStructure->generic_bootimage = estrdup(bootimage);
2112
2113 /* Get information about the file */
2114 if (lstat(diskStructure->generic_bootimage, &stbuf) == -1)
2115 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__,
2116 diskStructure->generic_bootimage);
2117
2118 if (stbuf.st_size > 32768) {
2119 warnx("Error: Boot image must be no greater than 32768 bytes");
2120 return 0;
2121 }
2122
2123 if (diskStructure->verbose_level > 0) {
2124 printf("Generic boot image has size %lld\n",
2125 (long long)stbuf.st_size);
2126 }
2127
2128 diskStructure->has_generic_bootimage = 1;
2129
2130 return 1;
2131 }
2132