1 /* $NetBSD: cd9660.c,v 1.26 2009/01/16 18:02:24 pooka 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 #ifdef __MirBSD__
102 #include <sys/param.h>
103 #endif
104 #include <sys/mount.h>
105 #endif
106
107 #include <sys/cdefs.h>
108 #if defined(__RCSID) && !defined(__lint)
109 __IDSTRING(mbsdid, "$MirOS: src/usr.sbin/makefs/cd9660.c,v 1.27 2010/03/06 23:32:15 tg Exp $");
110 __RCSID("$NetBSD: cd9660.c,v 1.26 2009/01/16 18:02:24 pooka Exp $");
111 #endif /* !__lint */
112
113 #include <string.h>
114 #include <ctype.h>
115 #include <sys/param.h>
116 #include <sys/queue.h>
117 #include <inttypes.h>
118
119 #include "makefs.h"
120 #include "cd9660.h"
121 #include "cd9660/iso9660_rrip.h"
122 #include "cd9660/cd9660_archimedes.h"
123
124 /*
125 * Global variables
126 */
127 iso9660_disk diskStructure;
128
129 static void cd9660_finalize_PVD(void);
130 static cd9660node *cd9660_allocate_cd9660node(void);
131 static void cd9660_set_defaults(void);
132 static int cd9660_arguments_set_string(const char *, const char *, int,
133 char, char *);
134 static void cd9660_populate_iso_dir_record(
135 struct _iso_directory_record_cd9660 *, u_char, u_char, u_char,
136 const char *);
137 static void cd9660_setup_root_node(fsnode *);
138 static int cd9660_setup_volume_descriptors(void);
139 #if 0
140 static int cd9660_fill_extended_attribute_record(cd9660node *);
141 #endif
142 static void cd9660_sort_nodes(cd9660node *);
143 static int cd9960_translate_node_common(cd9660node *);
144 static int cd9660_translate_node(fsnode *, cd9660node *);
145 static int cd9660_compare_filename(const char *, const char *);
146 static void cd9660_sorted_child_insert(cd9660node *, cd9660node *);
147 static int cd9660_handle_collisions(cd9660node *, int);
148 static cd9660node *cd9660_rename_filename(cd9660node *, int, int);
149 static void cd9660_copy_filenames(cd9660node *);
150 static void cd9660_sorting_nodes(cd9660node *);
151 static int cd9660_count_collisions(cd9660node *);
152 static cd9660node *cd9660_rrip_move_directory(cd9660node *);
153 static int cd9660_add_dot_records(cd9660node *);
154
155 static void cd9660_convert_structure(fsnode *, cd9660node *, int,
156 int *, int *);
157 static void cd9660_free_structure(cd9660node *);
158 static int cd9660_generate_path_table(void);
159 static int cd9660_level1_convert_filename(const char *, char *, size_t, int)
160 __bounded(string, 2, 3);
161 static int cd9660_level2_convert_filename(const char *, char *, size_t, int)
162 __bounded(string, 2, 3);
163 #if 0
164 static int cd9660_joliet_convert_filename(const char *, char *, size_t, int)
165 __bounded(string, 2, 3);
166 #endif
167 static int cd9660_convert_filename(const char *, char *, size_t, int)
168 __bounded(string, 2, 3);
169 static void cd9660_populate_dot_records(cd9660node *);
170 static int cd9660_compute_offsets(cd9660node *, int);
171 #if 0
172 static int cd9660_copy_stat_info(cd9660node *, cd9660node *, int);
173 #endif
174 static cd9660node *cd9660_create_virtual_entry(const char *, cd9660node *, int,
175 int);
176 static cd9660node *cd9660_create_file(const char *, cd9660node *, cd9660node *);
177 static cd9660node *cd9660_create_directory(const char *, cd9660node *,
178 cd9660node *);
179 static cd9660node *cd9660_create_special_directory(u_char, cd9660node *);
180
181
182 /*
183 * Allocate and initalize a cd9660node
184 * @returns struct cd9660node * Pointer to new node, or NULL on error
185 */
186 static cd9660node *
cd9660_allocate_cd9660node(void)187 cd9660_allocate_cd9660node(void)
188 {
189 cd9660node *temp;
190
191 if ((temp = calloc(1, sizeof(cd9660node))) == NULL)
192 err(EXIT_FAILURE, "%s: calloc", __func__);
193 TAILQ_INIT(&temp->cn_children);
194 temp->parent = temp->dot_record = temp->dot_dot_record = NULL;
195 temp->ptnext = temp->ptprev = temp->ptlast = NULL;
196 temp->node = NULL;
197 temp->isoDirRecord = NULL;
198 temp->isoExtAttributes = NULL;
199 temp->rr_real_parent = temp->rr_relocated = NULL;
200 temp->su_tail_data = NULL;
201 return temp;
202 }
203
204 int cd9660_defaults_set = 0;
205 int rrip_squash = 0;
206
207 /**
208 * Set default values for cd9660 extension to makefs
209 */
210 static void
cd9660_set_defaults(void)211 cd9660_set_defaults(void)
212 {
213 /*Fix the sector size for now, though the spec allows for other sizes*/
214 diskStructure.sectorSize = 2048;
215
216 /* Set up defaults in our own structure */
217 diskStructure.verbose_level = 0;
218 diskStructure.keep_bad_images = 0;
219 diskStructure.follow_sym_links = 0;
220 diskStructure.isoLevel = 2;
221
222 diskStructure.rock_ridge_enabled = 0;
223 diskStructure.rock_ridge_renamed_dir_name = 0;
224 diskStructure.rock_ridge_move_count = 0;
225 diskStructure.rr_moved_dir = 0;
226
227 diskStructure.archimedes_enabled = 0;
228
229 diskStructure.include_padding_areas = 1;
230
231 /* Spec breaking functionality */
232 diskStructure.allow_deep_trees =
233 diskStructure.allow_start_dot =
234 diskStructure.allow_max_name =
235 diskStructure.allow_illegal_chars =
236 diskStructure.allow_lowercase =
237 diskStructure.allow_multidot =
238 diskStructure.hide_rr_moved =
239 diskStructure.omit_trailing_period = 0;
240
241 /* Make sure the PVD is clear */
242 memset(&diskStructure.primaryDescriptor, 0, 2048);
243
244 memset(diskStructure.primaryDescriptor.volume_set_id, 0x20,
245 sizeof (diskStructure.primaryDescriptor.volume_set_id));
246 memset(diskStructure.primaryDescriptor.publisher_id, 0x20,
247 sizeof (diskStructure.primaryDescriptor.publisher_id));
248 memset(diskStructure.primaryDescriptor.preparer_id, 0x20,
249 sizeof (diskStructure.primaryDescriptor.preparer_id));
250 memset(diskStructure.primaryDescriptor.application_id, 0x20,
251 sizeof (diskStructure.primaryDescriptor.application_id));
252 memset(diskStructure.primaryDescriptor.copyright_file_id, 0x20,
253 sizeof (diskStructure.primaryDescriptor.copyright_file_id));
254 memset(diskStructure.primaryDescriptor.abstract_file_id, 0x20,
255 sizeof (diskStructure.primaryDescriptor.abstract_file_id));
256 memset(diskStructure.primaryDescriptor.bibliographic_file_id, 0x20,
257 sizeof (diskStructure.primaryDescriptor.bibliographic_file_id));
258
259 strlcpy(diskStructure.primaryDescriptor.system_id, ISO_DEFAULT_SYSID,
260 sizeof (diskStructure.primaryDescriptor.system_id));
261
262 diskStructure.forced_creation_date = NULL;
263 diskStructure.forced_modification_date = NULL;
264 diskStructure.forced_expiration_date = NULL;
265 diskStructure.forced_effective_date = NULL;
266
267 cd9660_defaults_set = 1;
268
269 /* Boot support: Initially disabled */
270 diskStructure.has_generic_bootimage = 0;
271 diskStructure.generic_bootimage = NULL;
272
273 diskStructure.boot_image_directory = 0;
274 /*memset(diskStructure.boot_descriptor, 0, 2048);*/
275
276 diskStructure.is_bootable = 0;
277 TAILQ_INIT(&diskStructure.boot_images);
278 LIST_INIT(&diskStructure.boot_entries);
279 }
280
281 void
cd9660_prep_opts(fsinfo_t * fsopts __unused)282 cd9660_prep_opts(fsinfo_t *fsopts __unused)
283 {
284 cd9660_set_defaults();
285 }
286
287 void
cd9660_cleanup_opts(fsinfo_t * fsopts __unused)288 cd9660_cleanup_opts(fsinfo_t *fsopts __unused)
289 {
290
291 }
292
293 static int
cd9660_arguments_set_string(const char * val,const char * fieldtitle,int length,char testmode,char * dest)294 cd9660_arguments_set_string(const char *val, const char *fieldtitle, int length,
295 char testmode, char * dest)
296 {
297 int len, test;
298
299 if (val == NULL)
300 warnx("error: The %s requires a string argument", fieldtitle);
301 else if ((len = strlen(val)) <= length) {
302 if (testmode == 'd')
303 test = cd9660_valid_d_chars(val);
304 else
305 test = cd9660_valid_a_chars(val);
306 if (test) {
307 memcpy(dest, val, len);
308 if (test == 2)
309 cd9660_uppercase_characters(dest, len);
310 return 1;
311 } else
312 warnx("error: The %s must be composed of "
313 "%c-characters", fieldtitle, testmode);
314 } else
315 warnx("error: The %s must be at most 32 characters long",
316 fieldtitle);
317 return 0;
318 }
319
320 /*
321 * Command-line parsing function
322 */
323
324 int
cd9660_parse_opts(const char * option,fsinfo_t * fsopts __unused)325 cd9660_parse_opts(const char *option, fsinfo_t *fsopts __unused)
326 {
327 char *var, *val;
328 int rv;
329 /* Set up allowed options - integer options ONLY */
330 option_t cd9660_options[] = {
331 { "l", &diskStructure.isoLevel, 1, 3, "ISO Level" },
332 { "isolevel", &diskStructure.isoLevel, 1, 3, "ISO Level" },
333 { "verbose", &diskStructure.verbose_level, 0, 2,
334 "Turns on verbose output" },
335 { "v", &diskStructure.verbose_level, 0 , 2,
336 "Turns on verbose output"},
337 { .name = NULL }
338 };
339
340 if (cd9660_defaults_set == 0)
341 cd9660_set_defaults();
342
343 /*
344 * Todo : finish implementing this, and make a function that
345 * parses them
346 */
347 /*
348 string_option_t cd9660_string_options[] = {
349 { "L", "Label", &diskStructure.primaryDescriptor.volume_id, 1, 32, "Disk Label", ISO_STRING_FILTER_DCHARS },
350 { NULL }
351 }
352 */
353
354 assert(option != NULL);
355
356 if (debug & DEBUG_FS_PARSE_OPTS)
357 printf("cd9660_parse_opts: got `%s'\n", option);
358
359 if ((var = strdup(option)) == NULL)
360 err(1, "allocating memory for copy of option string");
361 rv = 1;
362
363 val = strchr(var, '=');
364 if (val != NULL)
365 *val++ = '\0';
366
367 /* First handle options with no parameters */
368 if (strcmp(var, "h") == 0) {
369 diskStructure.displayHelp = 1;
370 rv = 1;
371 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "S", "follow-symlinks")) {
372 /* this is not handled yet */
373 diskStructure.follow_sym_links = 1;
374 rv = 1;
375 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "L", "label")) {
376 rv = cd9660_arguments_set_string(val, "Disk Label",
377 sizeof (diskStructure.primaryDescriptor.volume_id),
378 'd', diskStructure.primaryDescriptor.volume_id);
379 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "A", "applicationid")) {
380 rv = cd9660_arguments_set_string(val, "Application Identifier",
381 sizeof (diskStructure.primaryDescriptor.application_id),
382 'a', diskStructure.primaryDescriptor.application_id);
383 } else if(CD9660_IS_COMMAND_ARG_DUAL(var, "P", "publisher")) {
384 rv = cd9660_arguments_set_string(val, "Publisher Identifier",
385 sizeof (diskStructure.primaryDescriptor.publisher_id),
386 'a', diskStructure.primaryDescriptor.publisher_id);
387 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "p", "preparer")) {
388 rv = cd9660_arguments_set_string(val, "Preparer Identifier",
389 sizeof (diskStructure.primaryDescriptor.preparer_id),
390 'a', diskStructure.primaryDescriptor.preparer_id);
391 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "V", "volumeid")) {
392 rv = cd9660_arguments_set_string(val, "Volume Set Identifier",
393 sizeof (diskStructure.primaryDescriptor.volume_set_id),
394 'a', diskStructure.primaryDescriptor.volume_set_id);
395 /* Boot options */
396 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "B", "bootimage")) {
397 if (val == NULL)
398 warnx("error: The Boot Image parameter requires a valid boot information string");
399 else
400 rv = cd9660_add_boot_disk(val);
401 } else if (CD9660_IS_COMMAND_ARG(var, "bootimagedir")) {
402 /*
403 * XXXfvdl this is unused.
404 */
405 if (val == NULL)
406 errx(1, "error: The Boot Image Directory parameter"
407 " requires a directory name\n");
408 else {
409 if ((diskStructure.boot_image_directory =
410 calloc(1, strlen(val) + 1)) == NULL) {
411 CD9660_MEM_ALLOC_ERROR("cd9660_parse_opts");
412 exit(1);
413 }
414
415 /* BIG TODO: Add the max length function here */
416 cd9660_arguments_set_string(val, "Boot Image Directory",
417 sizeof (diskStructure.boot_image_directory),
418 'd', diskStructure.boot_image_directory);
419 }
420 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "G", "generic-bootimage")) {
421 if (val == NULL)
422 warnx("error: The Boot Image parameter requires a valid boot information string");
423 else
424 rv = cd9660_add_generic_bootimage(val);
425 } else if (CD9660_IS_COMMAND_ARG(var, "no-trailing-padding"))
426 diskStructure.include_padding_areas = 0;
427 /* RRIP */
428 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "R", "rockridge"))
429 diskStructure.rock_ridge_enabled = 1;
430 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "A", "archimedes"))
431 diskStructure.archimedes_enabled = 1;
432 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "K", "keep-bad-images"))
433 diskStructure.keep_bad_images = 1;
434 else if (CD9660_IS_COMMAND_ARG(var, "rr-squash"))
435 rrip_squash = 1;
436 else if (CD9660_IS_COMMAND_ARG(var, "hide-rr-moved"))
437 diskStructure.hide_rr_moved = 1;
438 else if (CD9660_IS_COMMAND_ARG(var, "allow-deep-trees"))
439 diskStructure.allow_deep_trees = 1;
440 else if (CD9660_IS_COMMAND_ARG(var, "allow-max-name"))
441 diskStructure.allow_max_name = 1;
442 else if (CD9660_IS_COMMAND_ARG(var, "allow-illegal-chars"))
443 diskStructure.allow_illegal_chars = 1;
444 else if (CD9660_IS_COMMAND_ARG(var, "allow-lowercase"))
445 diskStructure.allow_lowercase = 1;
446 else if (CD9660_IS_COMMAND_ARG(var,"allow-multidot"))
447 diskStructure.allow_multidot = 1;
448 else if (CD9660_IS_COMMAND_ARG(var, "omit-trailing-period"))
449 diskStructure.omit_trailing_period = 1;
450 else if (CD9660_IS_COMMAND_ARG(var, "no-emul-boot") ||
451 CD9660_IS_COMMAND_ARG(var, "no-boot") ||
452 CD9660_IS_COMMAND_ARG(var, "boot-info-table") ||
453 CD9660_IS_COMMAND_ARG(var, "hard-disk-boot")) {
454 cd9660_eltorito_add_boot_option(var, 0);
455
456 /* End of flag variables */
457 } else if (CD9660_IS_COMMAND_ARG(var, "boot-load-segment")) {
458 if (val == NULL) {
459 warnx("Option `%s' doesn't contain a value", var);
460 rv = 0;
461 } else {
462 cd9660_eltorito_add_boot_option(var, val);
463 }
464 } else if (CD9660_IS_COMMAND_ARG(var, "creation-date")) {
465 if ((rv = cd9660_isthisa_time_8426_utc(val, "creation-date")))
466 diskStructure.forced_creation_date = strdup(val);
467 } else if (CD9660_IS_COMMAND_ARG(var, "modification-date")) {
468 if ((rv = cd9660_isthisa_time_8426_utc(val, "modification-date")))
469 diskStructure.forced_modification_date = strdup(val);
470 } else if (CD9660_IS_COMMAND_ARG(var, "expiration-date")) {
471 if ((rv = cd9660_isthisa_time_8426_utc(val, "expiration-date")))
472 diskStructure.forced_expiration_date = strdup(val);
473 } else if (CD9660_IS_COMMAND_ARG(var, "effective-date")) {
474 if ((rv = cd9660_isthisa_time_8426_utc(val, "effective-date")))
475 diskStructure.forced_effective_date = strdup(val);
476 } else {
477 if (val == NULL) {
478 warnx("Option `%s' doesn't contain a value", var);
479 rv = 0;
480 } else
481 rv = set_option(cd9660_options, var, val);
482 }
483
484 if (var)
485 free(var);
486 return (rv);
487 }
488
489 /*
490 * Main function for cd9660_makefs
491 * Builds the ISO image file
492 * @param const char *image The image filename to create
493 * @param const char *dir The directory that is being read
494 * @param struct fsnode *root The root node of the filesystem tree
495 * @param struct fsinfo_t *fsopts Any options
496 */
497 void
cd9660_makefs(const char * image,const char * dir,fsnode * root,fsinfo_t * fsopts __unused)498 cd9660_makefs(const char *image, const char *dir, fsnode *root,
499 fsinfo_t *fsopts __unused)
500 {
501 int startoffset;
502 int numDirectories;
503 int pathTableSectors;
504 int firstAvailableSector;
505 int totalSpace;
506 int error;
507 cd9660node *real_root;
508
509 if (diskStructure.verbose_level > 0)
510 printf("cd9660_makefs: ISO level is %i\n",
511 diskStructure.isoLevel);
512 if (diskStructure.isoLevel < 2 &&
513 diskStructure.allow_multidot)
514 errx(1, "allow-multidot requires iso level of 2\n");
515
516 assert(image != NULL);
517 assert(dir != NULL);
518 assert(root != NULL);
519
520 if (diskStructure.displayHelp) {
521 /*
522 * Display help here - probably want to put it in
523 * a separate function
524 */
525 return;
526 }
527
528 diskStructure.rootFilesystemPath = dir;
529
530 if (diskStructure.verbose_level > 0)
531 printf("cd9660_makefs: image %s directory %s root %p\n",
532 image, dir, root);
533
534 /* Set up some constants. Later, these will be defined with options */
535
536 /* Counter needed for path tables */
537 numDirectories = 0;
538
539 /* Convert tree to our own format */
540 /* Actually, we now need to add the REAL root node, at level 0 */
541
542 real_root = cd9660_allocate_cd9660node();
543 if ((real_root->isoDirRecord =
544 calloc(1, sizeof (iso_directory_record_cd9660))) == NULL) {
545 CD9660_MEM_ALLOC_ERROR("cd9660_makefs");
546 exit(1);
547 }
548
549 real_root->level = 0;
550 diskStructure.rootNode = real_root;
551 real_root->type = CD9660_TYPE_DIR;
552 error = 0;
553 real_root->node = root;
554 cd9660_convert_structure(root, real_root, 1, &numDirectories, &error);
555
556 if (TAILQ_EMPTY(&real_root->cn_children)) {
557 errx(1, "cd9660_makefs: converted directory is empty. "
558 "Tree conversion failed\n");
559 } else if (error != 0) {
560 errx(1, "cd9660_makefs: tree conversion failed\n");
561 } else {
562 if (diskStructure.verbose_level > 0)
563 printf("cd9660_makefs: tree converted\n");
564 }
565
566 /* Add the dot and dot dot records */
567 cd9660_add_dot_records(real_root);
568
569 cd9660_setup_root_node(root);
570
571 if (diskStructure.verbose_level > 0)
572 printf("cd9660_makefs: done converting tree\n");
573
574 /* non-SUSP extensions */
575 if (diskStructure.archimedes_enabled)
576 archimedes_convert_tree(diskStructure.rootNode);
577
578 /* Rock ridge / SUSP init pass */
579 if (diskStructure.rock_ridge_enabled) {
580 cd9660_susp_initialize(diskStructure.rootNode,
581 diskStructure.rootNode, NULL, 0);
582 }
583
584 /* Build path table structure */
585 diskStructure.pathTableLength = cd9660_generate_path_table();
586
587 pathTableSectors = CD9660_BLOCKS(diskStructure.sectorSize,
588 diskStructure.pathTableLength);
589
590 firstAvailableSector = cd9660_setup_volume_descriptors();
591 if (diskStructure.is_bootable) {
592 firstAvailableSector = cd9660_setup_boot(firstAvailableSector);
593 if (firstAvailableSector < 0)
594 errx(1, "setup_boot failed");
595 }
596 /* LE first, then BE */
597 diskStructure.primaryLittleEndianTableSector = firstAvailableSector;
598 diskStructure.primaryBigEndianTableSector =
599 diskStructure.primaryLittleEndianTableSector + pathTableSectors;
600
601 /* Set the secondary ones to -1, not going to use them for now */
602 diskStructure.secondaryBigEndianTableSector = -1;
603 diskStructure.secondaryLittleEndianTableSector = -1;
604
605 diskStructure.dataFirstSector =
606 diskStructure.primaryBigEndianTableSector + pathTableSectors;
607 if (diskStructure.verbose_level > 0)
608 printf("cd9660_makefs: Path table conversion complete. "
609 "Each table is %i bytes, or %i sectors.\n",
610 diskStructure.pathTableLength, pathTableSectors);
611
612 startoffset = diskStructure.sectorSize*diskStructure.dataFirstSector;
613
614 totalSpace = cd9660_compute_offsets(real_root, startoffset);
615
616 diskStructure.totalSectors = diskStructure.dataFirstSector +
617 CD9660_BLOCKS(diskStructure.sectorSize, totalSpace);
618
619 /* Disabled until pass 1 is done */
620 if (diskStructure.rock_ridge_enabled) {
621 diskStructure.susp_continuation_area_start_sector =
622 diskStructure.totalSectors;
623 diskStructure.totalSectors +=
624 CD9660_BLOCKS(diskStructure.sectorSize,
625 diskStructure.susp_continuation_area_size);
626 cd9660_susp_finalize(diskStructure.rootNode);
627 }
628
629
630 cd9660_finalize_PVD();
631
632 /* Add padding sectors, just for testing purposes right now */
633 /* diskStructure.totalSectors+=150; */
634
635 /* Debugging output */
636 if (diskStructure.verbose_level > 0) {
637 printf("cd9660_makefs: Sectors 0-15 reserved\n");
638 printf("cd9660_makefs: Primary path tables starts in sector %i\n",
639 diskStructure.primaryLittleEndianTableSector);
640 printf("cd9660_makefs: File data starts in sector %i\n",
641 diskStructure.dataFirstSector);
642 printf("cd9660_makefs: Total sectors: %i\n",diskStructure.totalSectors);
643 }
644
645 /*
646 * Add padding sectors at the end
647 * TODO: Clean this up and separate padding
648 */
649 if (diskStructure.include_padding_areas)
650 diskStructure.totalSectors += 150;
651
652 cd9660_write_image(image);
653
654 if (diskStructure.verbose_level > 1) {
655 debug_print_volume_descriptor_information();
656 debug_print_tree(real_root,0);
657 debug_print_path_tree(real_root);
658 }
659
660 /* Clean up data structures */
661 cd9660_free_structure(real_root);
662
663 if (diskStructure.verbose_level > 0)
664 printf("cd9660_makefs: done\n");
665 }
666
667 /* Generic function pointer - implement later */
668 typedef int (*cd9660node_func)(cd9660node *);
669
670 static void
cd9660_finalize_PVD(void)671 cd9660_finalize_PVD(void)
672 {
673 time_t tim;
674 unsigned char *temp;
675
676 /* Copy the root directory record */
677 temp = (unsigned char *) &diskStructure.primaryDescriptor;
678
679 /* root should be a fixed size of 34 bytes since it has no name */
680 memcpy(diskStructure.primaryDescriptor.root_directory_record,
681 diskStructure.rootNode->dot_record->isoDirRecord, 34);
682
683 /* In RRIP, this might be longer than 34 */
684 diskStructure.primaryDescriptor.root_directory_record[0] = 34;
685
686 /* Set up all the important numbers in the PVD */
687 cd9660_bothendian_dword(diskStructure.totalSectors,
688 diskStructure.primaryDescriptor.volume_space_size);
689 cd9660_bothendian_word(1,
690 diskStructure.primaryDescriptor.volume_set_size);
691 cd9660_bothendian_word(1,
692 diskStructure.primaryDescriptor.volume_sequence_number);
693 cd9660_bothendian_word(diskStructure.sectorSize,
694 diskStructure.primaryDescriptor.logical_block_size);
695 cd9660_bothendian_dword(diskStructure.pathTableLength,
696 diskStructure.primaryDescriptor.path_table_size);
697
698 cd9660_731(diskStructure.primaryLittleEndianTableSector,
699 diskStructure.primaryDescriptor.type_l_path_table);
700 cd9660_732(diskStructure.primaryBigEndianTableSector,
701 diskStructure.primaryDescriptor.type_m_path_table);
702
703 diskStructure.primaryDescriptor.file_structure_version[0] = 1;
704
705 /* Pad all strings with spaces instead of nulls */
706 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_id);
707 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.system_id);
708 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_set_id);
709 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.publisher_id);
710 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.preparer_id);
711 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.application_id);
712 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.copyright_file_id);
713 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.abstract_file_id);
714 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.bibliographic_file_id);
715
716 /* Setup dates */
717 time(&tim);
718 cd9660_time_8426(tim, diskStructure.primaryDescriptor.creation_date);
719 cd9660_time_8426(tim, diskStructure.primaryDescriptor.modification_date);
720
721 /*
722 cd9660_set_date(now, diskStructure.primaryDescriptor.expiration_date);
723 */
724 memcpy(diskStructure.primaryDescriptor.expiration_date,
725 /* 16 "0" + one NUL */ "0000000000000000", 17);
726
727 cd9660_time_8426(tim, diskStructure.primaryDescriptor.effective_date);
728
729 if (diskStructure.forced_creation_date)
730 memcpy(diskStructure.primaryDescriptor.creation_date,
731 diskStructure.forced_creation_date, 17);
732 if (diskStructure.forced_modification_date)
733 memcpy(diskStructure.primaryDescriptor.modification_date,
734 diskStructure.forced_modification_date, 17);
735 if (diskStructure.forced_expiration_date)
736 memcpy(diskStructure.primaryDescriptor.expiration_date,
737 diskStructure.forced_expiration_date, 17);
738 if (diskStructure.forced_effective_date)
739 memcpy(diskStructure.primaryDescriptor.effective_date,
740 diskStructure.forced_effective_date, 17);
741
742 memcpy(diskStructure.primaryDescriptor.application_data,
743 "[APPLICATION USE]--> ...", 24);
744 memcpy(diskStructure.primaryDescriptor.application_data +
745 sizeof (diskStructure.primaryDescriptor.application_data) -
746 24, "... <--[APPLICATION USE]", 24);
747 }
748
749 static void
cd9660_name_iso_dir_record(struct _iso_directory_record_cd9660 * record,const char * name,u_char name_len)750 cd9660_name_iso_dir_record(struct _iso_directory_record_cd9660 *record,
751 const char *name, u_char name_len)
752 {
753 record->name_len[0] = name_len;
754 memset(record->name, '\0', sizeof (record->name));
755 memcpy(record->name, name, name_len);
756 record->length[0] = ((33 + name_len + 1) >> 1) << 1;
757 }
758
759 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)760 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record,
761 u_char ext_attr_length, u_char flags,
762 u_char name_len, const char * name)
763 {
764 record->ext_attr_length[0] = ext_attr_length;
765 record->flags[0] = ISO_FLAG_CLEAR | flags;
766 record->file_unit_size[0] = 0;
767 record->interleave[0] = 0;
768 cd9660_bothendian_word(1, record->volume_sequence_number);
769 cd9660_name_iso_dir_record(record, name, name_len);
770 }
771
772 static void
cd9660_setup_root_node(fsnode * makefs_root)773 cd9660_setup_root_node(fsnode *makefs_root)
774 {
775 cd9660_populate_iso_dir_record(diskStructure.rootNode->isoDirRecord,
776 0, ISO_FLAG_DIRECTORY, 1, "\0");
777
778 cd9660_time_915(makefs_root->inode->st.st_mtime,
779 diskStructure.rootNode->isoDirRecord->date);
780 cd9660_time_915(makefs_root->inode->st.st_mtime,
781 diskStructure.rootNode->dot_record->isoDirRecord->date);
782 cd9660_time_915(makefs_root->inode->st.st_mtime,
783 diskStructure.rootNode->dot_dot_record->isoDirRecord->date);
784 }
785
786 /*********** SUPPORT FUNCTIONS ***********/
787 static int
cd9660_setup_volume_descriptors(void)788 cd9660_setup_volume_descriptors(void)
789 {
790 /* Boot volume descriptor should come second */
791 int sector = 16;
792 /* For now, a fixed 2 : PVD and terminator */
793 volume_descriptor *temp, *t;
794
795 /* Set up the PVD */
796 if ((temp = calloc(1, sizeof (volume_descriptor))) == NULL) {
797 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
798 exit(1);
799 }
800
801 temp->volumeDescriptorData =
802 (unsigned char *)&diskStructure.primaryDescriptor;
803 temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD;
804 temp->volumeDescriptorData[6] = 1;
805 temp->sector = sector;
806 memcpy(temp->volumeDescriptorData + 1,
807 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
808 diskStructure.firstVolumeDescriptor = temp;
809
810 sector++;
811 /* Set up boot support if enabled. BVD must reside in sector 17 */
812 if (diskStructure.is_bootable) {
813 if ((t = calloc(1, sizeof (volume_descriptor))) == NULL) {
814 CD9660_MEM_ALLOC_ERROR(
815 "cd9660_setup_volume_descriptors");
816 exit(1);
817 }
818 if ((t->volumeDescriptorData = calloc(1, 2048)) == NULL) {
819 CD9660_MEM_ALLOC_ERROR(
820 "cd9660_setup_volume_descriptors");
821 exit(1);
822 }
823 temp->next = t;
824 temp = t;
825 t->sector = 17;
826 if (diskStructure.verbose_level > 0)
827 printf("Setting up boot volume descriptor\n");
828 cd9660_setup_boot_volume_descriptor(t);
829 sector++;
830 }
831
832 /* Set up the terminator */
833 if ((t = calloc(1, sizeof (volume_descriptor))) == NULL) {
834 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
835 exit(1);
836 }
837 if ((t->volumeDescriptorData = calloc(1, 2048)) == NULL) {
838 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors");
839 exit(1);
840 }
841
842 temp->next = t;
843 t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR;
844 t->next = 0;
845 t->volumeDescriptorData[6] = 1;
846 t->sector = sector;
847 memcpy(t->volumeDescriptorData + 1,
848 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5);
849
850 sector++;
851 return sector;
852 }
853
854 #if 0
855 /*
856 * Populate EAR at some point. Not required, but is used by NetBSD's
857 * cd9660 support
858 */
859 static int
860 cd9660_fill_extended_attribute_record(cd9660node *node)
861 {
862 if ((node->isoExtAttributes =
863 calloc(1, sizeof (struct iso_extended_attributes))) == NULL) {
864 CD9660_MEM_ALLOC_ERROR("cd9660_fill_extended_attribute_record");
865 exit(1);
866 };
867
868 return 1;
869 }
870 #endif
871
872 static int
cd9960_translate_node_common(cd9660node * newnode)873 cd9960_translate_node_common(cd9660node *newnode)
874 {
875 time_t tim;
876 int test;
877 u_char flag;
878 char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING];
879
880 /* Now populate the isoDirRecord structure */
881 memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
882
883 test = cd9660_convert_filename(newnode->node->name,
884 temp, sizeof (temp), !(S_ISDIR(newnode->node->type)));
885
886 flag = ISO_FLAG_CLEAR;
887 if (S_ISDIR(newnode->node->type))
888 flag |= ISO_FLAG_DIRECTORY;
889
890 cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0,
891 flag, strlen(temp), temp);
892
893 /* Set the various dates */
894
895 /* If we want to use the current date and time */
896 time(&tim);
897
898 cd9660_time_915(tim, newnode->isoDirRecord->date);
899
900 cd9660_bothendian_dword(newnode->fileDataLength,
901 newnode->isoDirRecord->size);
902 /* If the file is a link, we want to set the size to 0 */
903 if (S_ISLNK(newnode->node->type))
904 newnode->fileDataLength = 0;
905
906 return 1;
907 }
908
909 /*
910 * Translate fsnode to cd9960node
911 * Translate filenames and other metadata, including dates, sizes,
912 * permissions, etc
913 * @param struct fsnode * The node generated by makefs
914 * @param struct cd9660node * The intermediate node to be written to
915 * @returns int 0 on failure, 1 on success
916 */
917 static int
cd9660_translate_node(fsnode * node,cd9660node * newnode)918 cd9660_translate_node(fsnode *node, cd9660node *newnode)
919 {
920 if (node == NULL) {
921 if (diskStructure.verbose_level > 0)
922 printf("cd9660_translate_node: NULL node passed, "
923 "returning\n");
924 return 0;
925 }
926 if ((newnode->isoDirRecord =
927 calloc(1, sizeof (iso_directory_record_cd9660))) == NULL) {
928 CD9660_MEM_ALLOC_ERROR("cd9660_translate_node");
929 return 0;
930 }
931
932 /* Set the node pointer */
933 newnode->node = node;
934
935 /* Set the size */
936 if (!(S_ISDIR(node->type)))
937 newnode->fileDataLength = node->inode->st.st_size;
938
939 if (cd9960_translate_node_common(newnode) == 0)
940 return 0;
941
942 /* Finally, overwrite some of the values that are set by default */
943 cd9660_time_915(node->inode->st.st_mtime, newnode->isoDirRecord->date);
944
945 return 1;
946 }
947
948 /*
949 * Compares two ISO filenames
950 * @param const char * The first file name
951 * @param const char * The second file name
952 * @returns : -1 if first is less than second, 0 if they are the same, 1 if
953 * the second is greater than the first
954 */
955 static int
cd9660_compare_filename(const char * first,const char * second)956 cd9660_compare_filename(const char *first, const char *second)
957 {
958 /*
959 * This can be made more optimal once it has been tested
960 * (the extra character, for example, is for testing)
961 */
962
963 int p1 = 0;
964 int p2 = 0;
965 char c1, c2;
966 /* First, on the filename */
967
968 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1
969 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) {
970 c1 = first[p1];
971 c2 = second[p2];
972 if (c1 == '.' && c2 =='.')
973 break;
974 else if (c1 == '.') {
975 p2++;
976 c1 = ' ';
977 } else if (c2 == '.') {
978 p1++;
979 c2 = ' ';
980 } else {
981 p1++;
982 p2++;
983 }
984
985 if (c1 < c2)
986 return -1;
987 else if (c1 > c2) {
988 return 1;
989 }
990 }
991
992 if (first[p1] == '.' && second[p2] == '.') {
993 p1++;
994 p2++;
995 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1
996 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) {
997 c1 = first[p1];
998 c2 = second[p2];
999 if (c1 == ';' && c2 == ';')
1000 break;
1001 else if (c1 == ';') {
1002 p2++;
1003 c1 = ' ';
1004 } else if (c2 == ';') {
1005 p1++;
1006 c2 = ' ';
1007 } else {
1008 p1++;
1009 p2++;
1010 }
1011
1012 if (c1 < c2)
1013 return -1;
1014 else if (c1 > c2)
1015 return 1;
1016 }
1017 }
1018 return 0;
1019 }
1020
1021 /*
1022 * Insert a node into list with ISO sorting rules
1023 * @param cd9660node * The head node of the list
1024 * @param cd9660node * The node to be inserted
1025 */
1026 static void
cd9660_sorted_child_insert(cd9660node * parent,cd9660node * cn_new)1027 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new)
1028 {
1029 int compare;
1030 cd9660node *cn;
1031 struct cd9660_children_head *head = &parent->cn_children;
1032
1033 /* TODO: Optimize? */
1034 cn_new->parent = parent;
1035
1036 /*
1037 * first will either be 0, the . or the ..
1038 * if . or .., this means no other entry may be written before first
1039 * if 0, the new node may be inserted at the head
1040 */
1041
1042 TAILQ_FOREACH(cn, head, cn_next_child) {
1043 /*
1044 * Dont insert a node twice -
1045 * that would cause an infinite loop
1046 */
1047 if (cn_new == cn)
1048 return;
1049
1050 compare = cd9660_compare_filename(cn_new->isoDirRecord->name,
1051 cn->isoDirRecord->name);
1052
1053 if (compare == 0)
1054 compare = cd9660_compare_filename(cn_new->node->name,
1055 cn->node->name);
1056
1057 if (compare < 0)
1058 break;
1059 }
1060 if (cn == NULL)
1061 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child);
1062 else
1063 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child);
1064 }
1065
1066 /*
1067 * Called After cd9660_sorted_child_insert
1068 * handles file collisions by suffixing each filname with ~n
1069 * where n represents the files respective place in the ordering
1070 */
1071 static int
cd9660_handle_collisions(cd9660node * colliding,int past)1072 cd9660_handle_collisions(cd9660node *colliding, int past)
1073 {
1074 cd9660node *iter, *next, *prev;
1075 int skip;
1076 int delete_chars = 0;
1077 int temp_past = past;
1078 int temp_skip;
1079 int flag = 0;
1080 cd9660node *end_of_range;
1081
1082 for (iter = TAILQ_FIRST(&colliding->cn_children);
1083 iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) {
1084 if (strcmp(iter->isoDirRecord->name,
1085 next->isoDirRecord->name) != 0) {
1086 iter = TAILQ_NEXT(iter, cn_next_child);
1087 continue;
1088 }
1089 flag = 1;
1090 temp_skip = skip = cd9660_count_collisions(iter);
1091 end_of_range = iter;
1092 while (temp_skip > 0) {
1093 temp_skip--;
1094 end_of_range = TAILQ_NEXT(end_of_range, cn_next_child);
1095 }
1096 temp_past = past;
1097 while (temp_past > 0) {
1098 if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL)
1099 end_of_range = next;
1100 else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL)
1101 iter = prev;
1102 else
1103 delete_chars++;
1104 temp_past--;
1105 }
1106 skip += past;
1107 iter = cd9660_rename_filename(iter, skip, delete_chars);
1108 }
1109 return flag;
1110 }
1111
1112
1113 static cd9660node *
cd9660_rename_filename(cd9660node * iter,int num,int delete_chars)1114 cd9660_rename_filename(cd9660node *iter, int num, int delete_chars)
1115 {
1116 int i = 0;
1117 int numbts, dot, semi, digit, digits, temp, powers, multiplier, count;
1118 char *naming;
1119 int maxlength;
1120 char *tmp;
1121
1122 if (diskStructure.verbose_level > 0)
1123 printf("Rename_filename called\n");
1124
1125 /* TODO : A LOT of chanes regarding 8.3 filenames */
1126 if (diskStructure.isoLevel == 1)
1127 maxlength = 8;
1128 else if (diskStructure.isoLevel == 2)
1129 maxlength = 31;
1130 else
1131 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION;
1132
1133 tmp = calloc(1, ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1134
1135 while (i < num) {
1136 powers = 1;
1137 count = 0;
1138 digits = 1;
1139 multiplier = 1;
1140 while (((int)(i / powers) ) >= 10) {
1141 digits++;
1142 powers = powers * 10;
1143 }
1144
1145 naming = iter->o_name;
1146
1147 /*
1148 while ((*naming != '.') && (*naming != ';')) {
1149 naming++;
1150 count++;
1151 }
1152 */
1153
1154 dot = -1;
1155 semi = -1;
1156 while (count < maxlength) {
1157 if (*naming == '.')
1158 dot = count;
1159 else if (*naming == ';') {
1160 semi = count;
1161 break;
1162 }
1163 naming++;
1164 count++;
1165 }
1166
1167 if ((count + digits) < maxlength)
1168 numbts = count;
1169 else
1170 numbts = maxlength - (digits);
1171 numbts -= delete_chars;
1172
1173 /* 8.3 rules - keep the extension, add before the dot */
1174
1175 /*
1176 * This code makes a bunch of assumptions.
1177 * See if you can spot them all :)
1178 */
1179
1180 /*
1181 if (diskStructure.isoLevel == 1) {
1182 numbts = 8 - digits - delete_chars;
1183 if (dot < 0) {
1184
1185 } else {
1186 if (dot < 8) {
1187 memmove(&tmp[numbts],&tmp[dot],4);
1188 }
1189 }
1190 }
1191 */
1192
1193 /* (copying just the filename before the '.' */
1194 memcpy(tmp, (iter->o_name), numbts);
1195
1196 /* adding the appropriate number following the name */
1197 temp = i;
1198 while (digits > 0) {
1199 digit = (int)(temp / powers);
1200 temp = temp - digit * powers;
1201 snprintf(&tmp[numbts],
1202 ISO_FILENAME_MAXLENGTH_WITH_PADDING - numbts,
1203 "%d", digit);
1204 digits--;
1205 numbts++;
1206 powers = powers / 10;
1207 }
1208
1209 while ((*naming != ';') && (numbts < maxlength)) {
1210 tmp[numbts] = (*naming);
1211 naming++;
1212 numbts++;
1213 }
1214
1215 tmp[numbts] = ';';
1216 tmp[numbts+1] = '1';
1217 tmp[numbts+2] = '\0';
1218
1219 /*
1220 * now tmp has exactly the identifier
1221 * we want so we'll copy it back to record
1222 */
1223 memcpy((iter->isoDirRecord->name), tmp, numbts + 3);
1224
1225 iter = TAILQ_NEXT(iter, cn_next_child);
1226 i++;
1227 }
1228
1229 free(tmp);
1230 return iter;
1231 }
1232
1233 /* Todo: Figure out why these functions are nec. */
1234 static void
cd9660_copy_filenames(cd9660node * node)1235 cd9660_copy_filenames(cd9660node *node)
1236 {
1237 cd9660node *cn;
1238
1239 if (TAILQ_EMPTY(&node->cn_children))
1240 return;
1241
1242 if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) {
1243 debug_print_tree(diskStructure.rootNode, 0);
1244 exit(1);
1245 }
1246
1247 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1248 cd9660_copy_filenames(cn);
1249 memcpy(cn->o_name, cn->isoDirRecord->name,
1250 ISO_FILENAME_MAXLENGTH_WITH_PADDING);
1251 }
1252 }
1253
1254 static void
cd9660_sorting_nodes(cd9660node * node)1255 cd9660_sorting_nodes(cd9660node *node)
1256 {
1257 cd9660node *cn;
1258
1259 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child)
1260 cd9660_sorting_nodes(cn);
1261 cd9660_sort_nodes(node);
1262 }
1263
1264 /* XXX Bubble sort. */
1265 static void
cd9660_sort_nodes(cd9660node * node)1266 cd9660_sort_nodes(cd9660node *node)
1267 {
1268 cd9660node *cn, *next;
1269
1270 do {
1271 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) {
1272 if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL)
1273 return;
1274 else if (strcmp(next->isoDirRecord->name,
1275 cn->isoDirRecord->name) >= 0)
1276 continue;
1277 TAILQ_REMOVE(&node->cn_children, next, cn_next_child);
1278 TAILQ_INSERT_BEFORE(cn, next, cn_next_child);
1279 break;
1280 }
1281 } while (cn != NULL);
1282 }
1283
1284 static int
cd9660_count_collisions(cd9660node * copy)1285 cd9660_count_collisions(cd9660node *copy)
1286 {
1287 int count = 0;
1288 cd9660node *iter, *next;
1289
1290 for (iter = copy;
1291 (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;
1292 iter = next) {
1293 if (cd9660_compare_filename(iter->isoDirRecord->name,
1294 next->isoDirRecord->name) == 0)
1295 count++;
1296 else
1297 return count;
1298 }
1299 #if 0
1300 if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) {
1301 printf("cd9660_recurse_on_collision: count is %i \n", count);
1302 compare = cd9660_compare_filename(iter->isoDirRecord->name,
1303 next->isoDirRecord->name);
1304 if (compare == 0) {
1305 count++;
1306 return cd9660_recurse_on_collision(next, count);
1307 } else
1308 return count;
1309 }
1310 #endif
1311 return count;
1312 }
1313
1314 static cd9660node *
cd9660_rrip_move_directory(cd9660node * dir)1315 cd9660_rrip_move_directory(cd9660node *dir)
1316 {
1317 char newname[9];
1318 cd9660node *tfile;
1319
1320 /*
1321 * This function needs to:
1322 * 1) Create an empty virtual file in place of the old directory
1323 * 2) Point the virtual file to the new directory
1324 * 3) Point the relocated directory to its old parent
1325 * 4) Move the directory specified by dir into rr_moved_dir,
1326 * and rename it to "diskStructure.rock_ridge_move_count" (as a string)
1327 */
1328
1329 /* First see if the moved directory even exists */
1330 if (diskStructure.rr_moved_dir == NULL) {
1331 diskStructure.rr_moved_dir =
1332 cd9660_create_directory(ISO_RRIP_DEFAULT_MOVE_DIR_NAME,
1333 diskStructure.rootNode, dir);
1334 if (diskStructure.rr_moved_dir == NULL)
1335 return 0;
1336 }
1337
1338 /* Create a file with the same ORIGINAL name */
1339 tfile = cd9660_create_file(dir->node->name, dir->parent, dir);
1340 if (tfile == NULL)
1341 return NULL;
1342 /*
1343 * Because files get a trailing period and version appended,
1344 * we must retain the correct ORIGINAL name ourselves.
1345 */
1346 cd9660_name_iso_dir_record(tfile->isoDirRecord,
1347 dir->isoDirRecord->name, dir->isoDirRecord->name_len[0]);
1348
1349 diskStructure.rock_ridge_move_count++;
1350 snprintf(newname, sizeof(newname), "%08i",
1351 diskStructure.rock_ridge_move_count);
1352
1353 /* Point to old parent */
1354 dir->rr_real_parent = dir->parent;
1355
1356 /* Place the placeholder file */
1357 if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) {
1358 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile,
1359 cn_next_child);
1360 } else {
1361 cd9660_sorted_child_insert(dir->rr_real_parent, tfile);
1362 }
1363
1364 /* Point to new parent */
1365 dir->parent = diskStructure.rr_moved_dir;
1366
1367 /* Point the file to the moved directory */
1368 tfile->rr_relocated = dir;
1369
1370 /* Actually move the directory */
1371 cd9660_sorted_child_insert(diskStructure.rr_moved_dir, dir);
1372
1373 /* TODO: Inherit permissions / ownership (basically the entire inode) */
1374
1375 /* Set the new name */
1376 cd9660_name_iso_dir_record(dir->isoDirRecord, newname, 8);
1377
1378 return dir;
1379 }
1380
1381 static int
cd9660_add_dot_records(cd9660node * root)1382 cd9660_add_dot_records(cd9660node *root)
1383 {
1384 struct cd9660_children_head *head = &root->cn_children;
1385 cd9660node *cn;
1386
1387 TAILQ_FOREACH(cn, head, cn_next_child) {
1388 if ((cn->type & CD9660_TYPE_DIR) == 0)
1389 continue;
1390 /* Recursion first */
1391 cd9660_add_dot_records(cn);
1392 }
1393 cd9660_create_special_directory(CD9660_TYPE_DOT, root);
1394 cd9660_create_special_directory(CD9660_TYPE_DOTDOT, root);
1395 return 1;
1396 }
1397
1398 /*
1399 * Convert node to cd9660 structure
1400 * This function is designed to be called recursively on the root node of
1401 * the filesystem
1402 * Lots of recursion going on here, want to make sure it is efficient
1403 * @param struct fsnode * The root node to be converted
1404 * @param struct cd9660* The parent node (should not be NULL)
1405 * @param int Current directory depth
1406 * @param int* Running count of the number of directories that are being created
1407 */
1408 static void
cd9660_convert_structure(fsnode * root,cd9660node * parent_node,int level,int * numDirectories,int * error)1409 cd9660_convert_structure(fsnode *root, cd9660node *parent_node, int level,
1410 int *numDirectories, int *error)
1411 {
1412 fsnode *iterator = root;
1413 cd9660node *this_node;
1414 int working_level;
1415 int add;
1416 int flag = 0;
1417 int counter = 0;
1418
1419 /*
1420 * Newer, more efficient method, reduces recursion depth
1421 */
1422 if (root == NULL) {
1423 warnx("%s: root is null\n", __func__);
1424 return;
1425 }
1426
1427 /* Test for an empty directory - makefs still gives us the . record */
1428 if ((S_ISDIR(root->type)) && (root->name[0] == '.')
1429 && (root->name[1] == '\0')) {
1430 root = root->next;
1431 if (root == NULL)
1432 return;
1433 }
1434 if ((this_node = cd9660_allocate_cd9660node()) == NULL) {
1435 CD9660_MEM_ALLOC_ERROR(__func__);
1436 }
1437
1438 /*
1439 * To reduce the number of recursive calls, we will iterate over
1440 * the next pointers to the right.
1441 */
1442 while (iterator != NULL) {
1443 add = 1;
1444 /*
1445 * Increment the directory count if this is a directory
1446 * Ignore "." entries. We will generate them later
1447 */
1448 if (!S_ISDIR(iterator->type) ||
1449 strcmp(iterator->name, ".") != 0) {
1450
1451 /* Translate the node, including its filename */
1452 this_node->parent = parent_node;
1453 cd9660_translate_node(iterator, this_node);
1454 this_node->level = level;
1455
1456 if (S_ISDIR(iterator->type)) {
1457 (*numDirectories)++;
1458 this_node->type = CD9660_TYPE_DIR;
1459 working_level = level + 1;
1460
1461 /*
1462 * If at level 8, directory would be at 8
1463 * and have children at 9 which is not
1464 * allowed as per ISO spec
1465 */
1466 if (level == 8) {
1467 if ((!diskStructure.allow_deep_trees) &&
1468 (!diskStructure.rock_ridge_enabled)) {
1469 warnx("error: found entry "
1470 "with depth greater "
1471 "than 8.");
1472 (*error) = 1;
1473 return;
1474 } else if (diskStructure.
1475 rock_ridge_enabled) {
1476 working_level = 3;
1477 /*
1478 * Moved directory is actually
1479 * at level 2.
1480 */
1481 this_node->level =
1482 working_level - 1;
1483 if (cd9660_rrip_move_directory(
1484 this_node) == 0) {
1485 warnx("Failure in "
1486 "cd9660_rrip_"
1487 "move_directory"
1488 );
1489 (*error) = 1;
1490 return;
1491 }
1492 add = 0;
1493 }
1494 }
1495
1496 /* Do the recursive call on the children */
1497 if (iterator->child != 0) {
1498 cd9660_convert_structure(
1499 iterator->child, this_node,
1500 working_level,
1501 numDirectories, error);
1502
1503 if ((*error) == 1) {
1504 warnx("%s: Error on recursive "
1505 "call", __func__);
1506 return;
1507 }
1508 }
1509
1510 } else {
1511 /* Only directories should have children */
1512 assert(iterator->child == NULL);
1513
1514 this_node->type = CD9660_TYPE_FILE;
1515 }
1516
1517 /*
1518 * Finally, do a sorted insert
1519 */
1520 if (add) {
1521 cd9660_sorted_child_insert(
1522 parent_node, this_node);
1523 }
1524
1525 /*Allocate new temp_node */
1526 if (iterator->next != 0) {
1527 this_node = cd9660_allocate_cd9660node();
1528 if (this_node == NULL)
1529 CD9660_MEM_ALLOC_ERROR(__func__);
1530 }
1531 }
1532 iterator = iterator->next;
1533 }
1534
1535 /* cd9660_handle_collisions(first_node); */
1536
1537 /* TODO: need cleanup */
1538 cd9660_copy_filenames(parent_node);
1539
1540 do {
1541 flag = cd9660_handle_collisions(parent_node, counter);
1542 counter++;
1543 cd9660_sorting_nodes(parent_node);
1544 } while ((flag == 1) && (counter < 100));
1545 }
1546
1547 /*
1548 * Clean up the cd9660node tree
1549 * This is designed to be called recursively on the root node
1550 * @param struct cd9660node *root The node to free
1551 * @returns void
1552 */
1553 static void
cd9660_free_structure(cd9660node * root)1554 cd9660_free_structure(cd9660node *root)
1555 {
1556 cd9660node *cn;
1557
1558 while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) {
1559 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child);
1560 cd9660_free_structure(cn);
1561 }
1562 free(root);
1563 }
1564
1565 /*
1566 * Be a little more memory conservative:
1567 * instead of having the TAILQ_ENTRY as part of the cd9660node,
1568 * just create a temporary structure
1569 */
1570 struct ptq_entry
1571 {
1572 TAILQ_ENTRY(ptq_entry) ptq;
1573 cd9660node *node;
1574 } *n;
1575
1576 #define PTQUEUE_NEW(n,s,r,t){\
1577 n = calloc(1, sizeof (struct s)); \
1578 if (n == NULL) \
1579 return r; \
1580 n->node = t;\
1581 }
1582
1583 /*
1584 * Generate the path tables
1585 * The specific implementation of this function is left as an exercise to the
1586 * programmer. It could be done recursively. Make sure you read how the path
1587 * table has to be laid out, it has levels.
1588 * @param struct iso9660_disk *disk The disk image
1589 * @returns int The number of built path tables (between 1 and 4), 0 on failure
1590 */
1591 static int
cd9660_generate_path_table(void)1592 cd9660_generate_path_table(void)
1593 {
1594 cd9660node *cn, *dirNode = diskStructure.rootNode;
1595 cd9660node *last = dirNode;
1596 int pathTableSize = 0; /* computed as we go */
1597 int counter = 1; /* root gets a count of 0 */
1598 int parentRecNum = 0; /* root's parent is '0' */
1599
1600 TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head;
1601 TAILQ_INIT(&pt_head);
1602
1603 PTQUEUE_NEW(n, ptq_entry, -1, diskStructure.rootNode);
1604
1605 /* Push the root node */
1606 TAILQ_INSERT_HEAD(&pt_head, n, ptq);
1607
1608 /* Breadth-first traversal of file structure */
1609 while (pt_head.tqh_first != 0) {
1610 n = pt_head.tqh_first;
1611 dirNode = n->node;
1612 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq);
1613 free(n);
1614
1615 /* Update the size */
1616 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE
1617 + dirNode->isoDirRecord->name_len[0]+
1618 (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1);
1619 /* includes the padding bit */
1620
1621 dirNode->ptnumber=counter;
1622 if (dirNode != last) {
1623 last->ptnext = dirNode;
1624 dirNode->ptprev = last;
1625 }
1626 last = dirNode;
1627
1628 parentRecNum = 1;
1629 if (dirNode->parent != 0)
1630 parentRecNum = dirNode->parent->ptnumber;
1631
1632 /* Push children onto queue */
1633 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) {
1634 /*
1635 * Dont add the DOT and DOTDOT types to the path
1636 * table.
1637 */
1638 if ((cn->type != CD9660_TYPE_DOT)
1639 && (cn->type != CD9660_TYPE_DOTDOT)) {
1640
1641 if (S_ISDIR(cn->node->type)) {
1642 PTQUEUE_NEW(n, ptq_entry, -1, cn);
1643 TAILQ_INSERT_TAIL(&pt_head, n, ptq);
1644 }
1645 }
1646 }
1647 counter++;
1648 }
1649 return pathTableSize;
1650 }
1651
1652 void
cd9660_compute_full_filename(cd9660node * node,char * buf,size_t buflen,int level)1653 cd9660_compute_full_filename(cd9660node *node, char *buf, size_t buflen,
1654 int level)
1655 {
1656 cd9660node *parent;
1657
1658 parent = (node->rr_real_parent == NULL ?
1659 node->parent : node->rr_real_parent);
1660 if (parent != NULL) {
1661 cd9660_compute_full_filename(parent, buf, buflen, level + 1);
1662 strlcat(buf, node->node->name, buflen);
1663 } else {
1664 /* We are at the root */
1665 strlcat(buf, diskStructure.rootFilesystemPath, buflen);
1666 if (buf[strlen(buf) - 1] == '/')
1667 buf[strlen(buf) - 1] = '\0';
1668 }
1669
1670 if (level != 0)
1671 strlcat(buf, "/", buflen);
1672 }
1673
1674 /* NEW filename conversion method */
1675 typedef int(*cd9660_filename_conversion_functor)(const char *, char *,
1676 size_t, int);
1677
1678
1679 /*
1680 * TODO: These two functions are almost identical.
1681 * Some code cleanup is possible here
1682 *
1683 * XXX bounds checking!
1684 */
1685 static int
cd9660_level1_convert_filename(const char * oldname,char * newname,size_t namsz,int is_file)1686 cd9660_level1_convert_filename(const char *oldname, char *newname,
1687 size_t namsz, int is_file)
1688 {
1689 /*
1690 * ISO 9660 : 10.1
1691 * File Name shall not contain more than 8 d or d1 characters
1692 * File Name Extension shall not contain more than 3 d or d1 characters
1693 * Directory Identifier shall not contain more than 8 d or d1 characters
1694 */
1695 int namelen = 0;
1696 int extlen = 0;
1697 int found_ext = 0;
1698 char *newname_ = newname;
1699
1700 while (*oldname != '\0') {
1701 /* Handle period first, as it is special */
1702 if (*oldname == '.') {
1703 if (found_ext) {
1704 *newname++ = '_';
1705 extlen ++;
1706 }
1707 else {
1708 *newname++ = '.';
1709 found_ext = 1;
1710 }
1711 } else {
1712 /* cut RISC OS file type off ISO name */
1713 if (diskStructure.archimedes_enabled &&
1714 *oldname == ',' && strlen(oldname) == 4)
1715 break;
1716 /* Enforce 12.3 / 8 */
1717 if (((namelen == 8) && !found_ext) ||
1718 (found_ext && extlen == 3)) {
1719 break;
1720 }
1721
1722 if (islower((unsigned char)*oldname))
1723 *newname++ = toupper((unsigned char)*oldname);
1724 else if (isupper((unsigned char)*oldname)
1725 || isdigit((unsigned char)*oldname))
1726 *newname++ = *oldname;
1727 else
1728 *newname++ = '_';
1729
1730 if (found_ext)
1731 extlen++;
1732 else
1733 namelen++;
1734 }
1735 oldname ++;
1736 }
1737 if (is_file) {
1738 if (!found_ext && !diskStructure.omit_trailing_period)
1739 *newname++ = '.';
1740 /* Add version */
1741 snprintf(newname, namsz - (newname - newname_), ";%i", 1);
1742 }
1743 return namelen + extlen + found_ext;
1744 }
1745
1746 /* XXX bounds checking! */
1747 static int
cd9660_level2_convert_filename(const char * oldname,char * newname,size_t namsz,int is_file)1748 cd9660_level2_convert_filename(const char *oldname, char *newname,
1749 size_t namsz, int is_file)
1750 {
1751 /*
1752 * ISO 9660 : 7.5.1
1753 * File name : 0+ d or d1 characters
1754 * separator 1 (.)
1755 * File name extension : 0+ d or d1 characters
1756 * separator 2 (;)
1757 * File version number (5 characters, 1-32767)
1758 * 1 <= Sum of File name and File name extension <= 30
1759 */
1760 int namelen = 0;
1761 int extlen = 0;
1762 int found_ext = 0;
1763 char *newname_ = newname;
1764
1765 while (*oldname != '\0') {
1766 /* Handle period first, as it is special */
1767 if (*oldname == '.') {
1768 if (found_ext) {
1769 if (diskStructure.allow_multidot) {
1770 *newname++ = '.';
1771 } else {
1772 *newname++ = '_';
1773 }
1774 extlen ++;
1775 }
1776 else {
1777 *newname++ = '.';
1778 found_ext = 1;
1779 }
1780 } else {
1781 /* cut RISC OS file type off ISO name */
1782 if (diskStructure.archimedes_enabled &&
1783 *oldname == ',' && strlen(oldname) == 4)
1784 break;
1785 if ((namelen + extlen) == 30)
1786 break;
1787
1788 if (islower((unsigned char)*oldname))
1789 *newname++ = toupper((unsigned char)*oldname);
1790 else if (isupper((unsigned char)*oldname) ||
1791 isdigit((unsigned char)*oldname))
1792 *newname++ = *oldname;
1793 else if (diskStructure.allow_multidot &&
1794 *oldname == '.') {
1795 *newname++ = '.';
1796 } else {
1797 *newname++ = '_';
1798 }
1799
1800 if (found_ext)
1801 extlen++;
1802 else
1803 namelen++;
1804 }
1805 oldname ++;
1806 }
1807 if (is_file) {
1808 if (!found_ext && !diskStructure.omit_trailing_period)
1809 *newname++ = '.';
1810 /* Add version */
1811 snprintf(newname, namsz - (newname - newname_), ";%i", 1);
1812 }
1813 return namelen + extlen + found_ext;
1814 }
1815
1816 #if 0
1817 static int
1818 cd9660_joliet_convert_filename(const char *oldname, char *newname,
1819 size_t namsz, int is_file)
1820 {
1821 /* TODO: implement later, move to cd9660_joliet.c ?? */
1822 }
1823 #endif
1824
1825
1826 /*
1827 * Convert a file name to ISO compliant file name
1828 * @param char * oldname The original filename
1829 * @param char ** newname The new file name, in the appropriate character
1830 * set and of appropriate length
1831 * @param int 1 if file, 0 if directory
1832 * @returns int The length of the new string
1833 */
1834 static int
cd9660_convert_filename(const char * oldname,char * newname,size_t namsz,int is_file)1835 cd9660_convert_filename(const char *oldname, char *newname,
1836 size_t namsz, int is_file)
1837 {
1838 /* NEW */
1839 cd9660_filename_conversion_functor conversion_function = 0;
1840 if (diskStructure.isoLevel == 1)
1841 conversion_function = &cd9660_level1_convert_filename;
1842 else if (diskStructure.isoLevel == 2)
1843 conversion_function = &cd9660_level2_convert_filename;
1844 return (*conversion_function)(oldname, newname, namsz, is_file);
1845 }
1846
1847 int
cd9660_compute_record_size(cd9660node * node)1848 cd9660_compute_record_size(cd9660node *node)
1849 {
1850 int size = node->isoDirRecord->length[0];
1851
1852 if (diskStructure.rock_ridge_enabled)
1853 size += node->susp_entry_size;
1854 size += node->su_tail_size;
1855 size += size & 1; /* Ensure length of record is even. */
1856 assert(size <= 254);
1857 return size;
1858 }
1859
1860 static void
cd9660_populate_dot_records(cd9660node * node)1861 cd9660_populate_dot_records(cd9660node *node)
1862 {
1863 node->dot_record->fileDataSector = node->fileDataSector;
1864 memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34);
1865 node->dot_record->isoDirRecord->name_len[0] = 1;
1866 node->dot_record->isoDirRecord->name[0] = 0;
1867 node->dot_record->isoDirRecord->name[1] = 0;
1868 node->dot_record->isoDirRecord->length[0] = 34;
1869 node->dot_record->fileRecordSize =
1870 cd9660_compute_record_size(node->dot_record);
1871
1872 if (node == diskStructure.rootNode) {
1873 node->dot_dot_record->fileDataSector = node->fileDataSector;
1874 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord,
1875 34);
1876 } else {
1877 node->dot_dot_record->fileDataSector =
1878 node->parent->fileDataSector;
1879 memcpy(node->dot_dot_record->isoDirRecord,
1880 node->parent->isoDirRecord,34);
1881 }
1882 node->dot_dot_record->isoDirRecord->name_len[0] = 1;
1883 node->dot_dot_record->isoDirRecord->name[0] = 1;
1884 node->dot_dot_record->isoDirRecord->name[1] = 0;
1885 node->dot_dot_record->isoDirRecord->length[0] = 34;
1886 node->dot_dot_record->fileRecordSize =
1887 cd9660_compute_record_size(node->dot_dot_record);
1888 }
1889
1890 /*
1891 * @param struct cd9660node *node The node
1892 * @param int The offset (in bytes) - SHOULD align to the beginning of a sector
1893 * @returns int The total size of files and directory entries (should be
1894 * a multiple of sector size)
1895 */
1896 static int
cd9660_compute_offsets(cd9660node * node,int startOffset)1897 cd9660_compute_offsets(cd9660node *node, int startOffset)
1898 {
1899 /*
1900 * This function needs to compute the size of directory records and
1901 * runs, file lengths, and set the appropriate variables both in
1902 * cd9660node and isoDirEntry
1903 */
1904 int used_bytes = 0;
1905 int current_sector_usage = 0;
1906 cd9660node *child;
1907 fsinode *inode;
1908 int r;
1909
1910 assert(node != NULL);
1911
1912
1913 /*
1914 * NOTE : There needs to be some special case detection for
1915 * the "real root" node, since for it, node->node is undefined
1916 */
1917
1918 node->fileDataSector = -1;
1919
1920 if (node->type & CD9660_TYPE_DIR) {
1921 node->fileRecordSize = cd9660_compute_record_size(node);
1922 /*Set what sector this directory starts in*/
1923 node->fileDataSector =
1924 CD9660_BLOCKS(diskStructure.sectorSize,startOffset);
1925
1926 cd9660_bothendian_dword(node->fileDataSector,
1927 node->isoDirRecord->extent);
1928
1929 /*
1930 * First loop over children, need to know the size of
1931 * their directory records
1932 */
1933 node->fileSectorsUsed = 1;
1934 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) {
1935 node->fileDataLength +=
1936 cd9660_compute_record_size(child);
1937 if ((cd9660_compute_record_size(child) +
1938 current_sector_usage) >=
1939 diskStructure.sectorSize) {
1940 current_sector_usage = 0;
1941 node->fileSectorsUsed++;
1942 }
1943
1944 current_sector_usage +=
1945 cd9660_compute_record_size(child);
1946 }
1947
1948 cd9660_bothendian_dword(node->fileSectorsUsed *
1949 diskStructure.sectorSize,node->isoDirRecord->size);
1950
1951 /*
1952 * This should point to the sector after the directory
1953 * record (or, the first byte in that sector)
1954 */
1955 used_bytes += node->fileSectorsUsed * diskStructure.sectorSize;
1956
1957 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1958 child != NULL; child = TAILQ_NEXT(child, cn_next_child)) {
1959 /* Directories need recursive call */
1960 if (S_ISDIR(child->node->type)) {
1961 r = cd9660_compute_offsets(child,
1962 used_bytes + startOffset);
1963
1964 if (r != -1)
1965 used_bytes += r;
1966 else
1967 return -1;
1968 }
1969 }
1970
1971 /* Explicitly set the . and .. records */
1972 cd9660_populate_dot_records(node);
1973
1974 /* Finally, do another iteration to write the file data*/
1975 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child);
1976 child != NULL;
1977 child = TAILQ_NEXT(child, cn_next_child)) {
1978 /* Files need extent set */
1979 if (S_ISDIR(child->node->type))
1980 continue;
1981 child->fileRecordSize =
1982 cd9660_compute_record_size(child);
1983
1984 child->fileSectorsUsed =
1985 CD9660_BLOCKS(diskStructure.sectorSize,
1986 child->fileDataLength);
1987
1988 inode = child->node->inode;
1989 if ((inode->flags & FI_ALLOCATED) == 0) {
1990 inode->ino =
1991 CD9660_BLOCKS(diskStructure.sectorSize,
1992 used_bytes + startOffset);
1993 inode->flags |= FI_ALLOCATED;
1994 used_bytes += child->fileSectorsUsed *
1995 diskStructure.sectorSize;
1996 } else {
1997 INODE_WARNX(("%s: already allocated inode %d "
1998 "data sectors at %" PRIu32, __func__,
1999 (int)inode->st.st_ino, inode->ino));
2000 }
2001 child->fileDataSector = inode->ino;
2002 cd9660_bothendian_dword(child->fileDataSector,
2003 child->isoDirRecord->extent);
2004 }
2005 }
2006
2007 return used_bytes;
2008 }
2009
2010 #if 0
2011 /* Might get rid of this func */
2012 static int
2013 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file)
2014 {
2015 to->node->inode->st.st_dev = 0;
2016 to->node->inode->st.st_ino = 0;
2017 to->node->inode->st.st_size = 0;
2018 to->node->inode->st.st_blksize = from->node->inode->st.st_blksize;
2019 to->node->inode->st.st_atime = from->node->inode->st.st_atime;
2020 to->node->inode->st.st_mtime = from->node->inode->st.st_mtime;
2021 to->node->inode->st.st_ctime = from->node->inode->st.st_ctime;
2022 to->node->inode->st.st_uid = from->node->inode->st.st_uid;
2023 to->node->inode->st.st_gid = from->node->inode->st.st_gid;
2024 to->node->inode->st.st_mode = from->node->inode->st.st_mode;
2025 /* Clear out type */
2026 to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT);
2027 if (file)
2028 to->node->inode->st.st_mode |= S_IFREG;
2029 else
2030 to->node->inode->st.st_mode |= S_IFDIR;
2031 return 1;
2032 }
2033 #endif
2034
2035 static cd9660node *
cd9660_create_virtual_entry(const char * name,cd9660node * parent,int file,int insert)2036 cd9660_create_virtual_entry(const char *name, cd9660node *parent, int file,
2037 int insert)
2038 {
2039 cd9660node *temp;
2040 fsnode * tfsnode;
2041
2042 assert(parent != NULL);
2043
2044 temp = cd9660_allocate_cd9660node();
2045 if (temp == NULL)
2046 return NULL;
2047
2048 if ((tfsnode = calloc(1, sizeof (fsnode))) == NULL) {
2049 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
2050 return NULL;
2051 }
2052
2053 /* Assume for now name is a valid length */
2054 if ((tfsnode->name = strdup(name)) == NULL) {
2055 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
2056 return NULL;
2057 }
2058
2059 if ((temp->isoDirRecord =
2060 calloc(1, sizeof (iso_directory_record_cd9660))) == NULL) {
2061 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry");
2062 return NULL;
2063 }
2064
2065 cd9660_convert_filename(tfsnode->name, temp->isoDirRecord->name,
2066 sizeof (temp->isoDirRecord->name), file);
2067
2068 temp->node = tfsnode;
2069 temp->parent = parent;
2070
2071 if (insert) {
2072 if (temp->parent != NULL) {
2073 temp->level = temp->parent->level + 1;
2074 if (!TAILQ_EMPTY(&temp->parent->cn_children))
2075 cd9660_sorted_child_insert(temp->parent, temp);
2076 else
2077 TAILQ_INSERT_HEAD(&temp->parent->cn_children,
2078 temp, cn_next_child);
2079 }
2080 }
2081
2082 if (parent->node != NULL) {
2083 tfsnode->type = parent->node->type;
2084 }
2085
2086 /* Clear out file type bits */
2087 tfsnode->type &= ~(S_IFMT);
2088 if (file)
2089 tfsnode->type |= S_IFREG;
2090 else
2091 tfsnode->type |= S_IFDIR;
2092
2093 /* Indicate that there is no spec entry (inode) */
2094 tfsnode->flags &= ~(FSNODE_F_HASSPEC);
2095 #if 0
2096 cd9660_copy_stat_info(parent, temp, file);
2097 #endif
2098 return temp;
2099 }
2100
2101 static cd9660node *
cd9660_create_file(const char * name,cd9660node * parent,cd9660node * me)2102 cd9660_create_file(const char * name, cd9660node *parent, cd9660node *me)
2103 {
2104 cd9660node *temp;
2105
2106 temp = cd9660_create_virtual_entry(name,parent,1,1);
2107 if (temp == NULL)
2108 return NULL;
2109
2110 temp->fileDataLength = 0;
2111
2112 temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL;
2113
2114 if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2115 return NULL;
2116 *temp->node->inode = *me->node->inode;
2117
2118 if (cd9960_translate_node_common(temp) == 0)
2119 return NULL;
2120 return temp;
2121 }
2122
2123 /*
2124 * Create a new directory which does not exist on disk
2125 * @param const char * name The name to assign to the directory
2126 * @param const char * parent Pointer to the parent directory
2127 * @returns cd9660node * Pointer to the new directory
2128 */
2129 static cd9660node *
cd9660_create_directory(const char * name,cd9660node * parent,cd9660node * me)2130 cd9660_create_directory(const char *name, cd9660node *parent, cd9660node *me)
2131 {
2132 cd9660node *temp;
2133
2134 temp = cd9660_create_virtual_entry(name,parent,0,1);
2135 if (temp == NULL)
2136 return NULL;
2137 temp->node->type |= S_IFDIR;
2138
2139 temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL;
2140
2141 if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL)
2142 return NULL;
2143 *temp->node->inode = *me->node->inode;
2144
2145 if (cd9960_translate_node_common(temp) == 0)
2146 return NULL;
2147 return temp;
2148 }
2149
2150 static cd9660node *
cd9660_create_special_directory(u_char type,cd9660node * parent)2151 cd9660_create_special_directory(u_char type, cd9660node *parent)
2152 {
2153 cd9660node *temp, *first;
2154 char na[2];
2155
2156 assert(parent != NULL);
2157
2158 if (type == CD9660_TYPE_DOT)
2159 na[0] = 0;
2160 else if (type == CD9660_TYPE_DOTDOT)
2161 na[0] = 1;
2162 else
2163 return 0;
2164
2165 na[1] = 0;
2166 if ((temp = cd9660_create_virtual_entry(na, parent, 0, 0)) == NULL)
2167 return NULL;
2168
2169 temp->parent = parent;
2170 temp->type = type;
2171 temp->isoDirRecord->length[0] = 34;
2172 /* Dot record is always first */
2173 if (type == CD9660_TYPE_DOT) {
2174 parent->dot_record = temp;
2175 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child);
2176 /* DotDot should be second */
2177 } else if (type == CD9660_TYPE_DOTDOT) {
2178 parent->dot_dot_record = temp;
2179 /*
2180 * If the first child is the dot record, insert
2181 * this second. Otherwise, insert it at the head.
2182 */
2183 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL ||
2184 (first->type & CD9660_TYPE_DOT) == 0) {
2185 TAILQ_INSERT_HEAD(&parent->cn_children, temp,
2186 cn_next_child);
2187 } else {
2188 TAILQ_INSERT_AFTER(&parent->cn_children, first, temp,
2189 cn_next_child);
2190 }
2191 }
2192
2193 return temp;
2194 }
2195
2196 int
cd9660_add_generic_bootimage(const char * bootimage)2197 cd9660_add_generic_bootimage(const char *bootimage)
2198 {
2199 struct stat stbuf;
2200
2201 assert(bootimage != NULL);
2202
2203 if (*bootimage == '\0') {
2204 warnx("Error: Boot image must be a filename");
2205 return 0;
2206 }
2207
2208 if ((diskStructure.generic_bootimage = strdup(bootimage)) == NULL) {
2209 warn("%s: strdup", __func__);
2210 return 0;
2211 }
2212
2213 /* Get information about the file */
2214 if (lstat(diskStructure.generic_bootimage, &stbuf) == -1)
2215 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__,
2216 diskStructure.generic_bootimage);
2217
2218 if (stbuf.st_size > 32768) {
2219 warnx("Error: Boot image must be no greater than 32768 bytes");
2220 return 0;
2221 }
2222
2223 if (diskStructure.verbose_level > 0) {
2224 printf("Generic boot image image has size %lld\n",
2225 (long long)stbuf.st_size);
2226 }
2227
2228 diskStructure.has_generic_bootimage = 1;
2229
2230 return 1;
2231 }
2232