1 /* $NetBSD: cd9660.c,v 1.56 2019/10/18 04:09:02 msaitoh Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause 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 */ 99 100 #include <sys/param.h> 101 #include <sys/queue.h> 102 #include <ctype.h> 103 #include <stdlib.h> 104 #include <string.h> 105 #include <util.h> 106 107 #include "makefs.h" 108 #include "cd9660.h" 109 #include "cd9660/iso9660_rrip.h" 110 111 static void cd9660_finalize_PVD(iso9660_disk *); 112 static cd9660node *cd9660_allocate_cd9660node(void); 113 static void cd9660_set_defaults(iso9660_disk *); 114 static int cd9660_arguments_set_string(const char *, const char *, size_t, 115 char, char *); 116 static void cd9660_populate_iso_dir_record( 117 struct _iso_directory_record_cd9660 *, u_char, u_char, u_char, 118 const char *); 119 static void cd9660_setup_root_node(iso9660_disk *); 120 static int cd9660_setup_volume_descriptors(iso9660_disk *); 121 #if 0 122 static int cd9660_fill_extended_attribute_record(cd9660node *); 123 #endif 124 static void cd9660_sort_nodes(cd9660node *); 125 static int cd9660_translate_node_common(iso9660_disk *, cd9660node *); 126 static int cd9660_translate_node(iso9660_disk *, fsnode *, cd9660node *); 127 static int cd9660_compare_filename(const char *, const char *); 128 static void cd9660_sorted_child_insert(cd9660node *, cd9660node *); 129 static int cd9660_handle_collisions(iso9660_disk *, cd9660node *, int); 130 static cd9660node *cd9660_rename_filename(iso9660_disk *, cd9660node *, int, 131 int); 132 static void cd9660_copy_filenames(iso9660_disk *, cd9660node *); 133 static void cd9660_sorting_nodes(cd9660node *); 134 static int cd9660_count_collisions(cd9660node *); 135 static cd9660node *cd9660_rrip_move_directory(iso9660_disk *, cd9660node *); 136 static int cd9660_add_dot_records(iso9660_disk *, cd9660node *); 137 138 static void cd9660_convert_structure(iso9660_disk *, fsnode *, cd9660node *, int, 139 int *, int *); 140 static void cd9660_free_structure(cd9660node *); 141 static int cd9660_generate_path_table(iso9660_disk *); 142 static int cd9660_level1_convert_filename(iso9660_disk *, const char *, char *, 143 size_t, int); 144 static int cd9660_level2_convert_filename(iso9660_disk *, const char *, char *, 145 size_t, int); 146 static int cd9660_convert_filename(iso9660_disk *, const char *, char *, size_t, 147 int); 148 static void cd9660_populate_dot_records(iso9660_disk *, cd9660node *); 149 static int64_t cd9660_compute_offsets(iso9660_disk *, cd9660node *, int64_t); 150 #if 0 151 static int cd9660_copy_stat_info(cd9660node *, cd9660node *, int); 152 #endif 153 static cd9660node *cd9660_create_virtual_entry(iso9660_disk *, const char *, 154 cd9660node *, int, int); 155 static cd9660node *cd9660_create_file(iso9660_disk *, const char *, 156 cd9660node *, cd9660node *); 157 static cd9660node *cd9660_create_directory(iso9660_disk *, const char *, 158 cd9660node *, cd9660node *); 159 static cd9660node *cd9660_create_special_directory(iso9660_disk *, u_char, 160 cd9660node *); 161 static int cd9660_add_generic_bootimage(iso9660_disk *, const char *); 162 163 164 /* 165 * Allocate and initialize a cd9660node 166 * @returns struct cd9660node * Pointer to new node, or NULL on error 167 */ 168 static cd9660node * cd9660_allocate_cd9660node(void)169 cd9660_allocate_cd9660node(void) 170 { 171 cd9660node *temp = ecalloc(1, sizeof(*temp)); 172 173 TAILQ_INIT(&temp->cn_children); 174 temp->parent = temp->dot_record = temp->dot_dot_record = NULL; 175 temp->ptnext = temp->ptprev = temp->ptlast = NULL; 176 temp->node = NULL; 177 temp->isoDirRecord = NULL; 178 temp->isoExtAttributes = NULL; 179 temp->rr_real_parent = temp->rr_relocated = NULL; 180 temp->su_tail_data = NULL; 181 return temp; 182 } 183 184 /** 185 * Set default values for cd9660 extension to makefs 186 */ 187 static void cd9660_set_defaults(iso9660_disk * diskStructure)188 cd9660_set_defaults(iso9660_disk *diskStructure) 189 { 190 /*Fix the sector size for now, though the spec allows for other sizes*/ 191 diskStructure->sectorSize = 2048; 192 193 /* Set up defaults in our own structure */ 194 diskStructure->verbose_level = 0; 195 diskStructure->keep_bad_images = 0; 196 diskStructure->isoLevel = 2; 197 198 diskStructure->rock_ridge_enabled = 0; 199 diskStructure->rock_ridge_renamed_dir_name = 0; 200 diskStructure->rock_ridge_move_count = 0; 201 diskStructure->rr_moved_dir = 0; 202 203 diskStructure->chrp_boot = 0; 204 205 diskStructure->include_padding_areas = 1; 206 207 /* Spec breaking functionality */ 208 diskStructure->allow_deep_trees = 209 diskStructure->allow_start_dot = 210 diskStructure->allow_max_name = 211 diskStructure->allow_illegal_chars = 212 diskStructure->allow_lowercase = 213 diskStructure->allow_multidot = 214 diskStructure->omit_trailing_period = 0; 215 216 /* Make sure the PVD is clear */ 217 memset(&diskStructure->primaryDescriptor, 0, 2048); 218 219 memset(diskStructure->primaryDescriptor.publisher_id, 0x20,128); 220 memset(diskStructure->primaryDescriptor.preparer_id, 0x20,128); 221 memset(diskStructure->primaryDescriptor.application_id, 0x20,128); 222 memset(diskStructure->primaryDescriptor.copyright_file_id, 0x20,37); 223 memset(diskStructure->primaryDescriptor.abstract_file_id, 0x20,37); 224 memset(diskStructure->primaryDescriptor.bibliographic_file_id, 0x20,37); 225 226 strlcpy(diskStructure->primaryDescriptor.system_id, "FreeBSD", 227 sizeof(diskStructure->primaryDescriptor.system_id)); 228 229 /* Boot support: Initially disabled */ 230 diskStructure->has_generic_bootimage = 0; 231 diskStructure->generic_bootimage = NULL; 232 233 diskStructure->boot_image_directory = 0; 234 /*memset(diskStructure->boot_descriptor, 0, 2048);*/ 235 236 diskStructure->is_bootable = 0; 237 TAILQ_INIT(&diskStructure->boot_images); 238 LIST_INIT(&diskStructure->boot_entries); 239 } 240 241 void cd9660_prep_opts(fsinfo_t * fsopts)242 cd9660_prep_opts(fsinfo_t *fsopts) 243 { 244 iso9660_disk *diskStructure = ecalloc(1, sizeof(*diskStructure)); 245 246 #define OPT_STR(letter, name, desc) \ 247 { letter, name, NULL, OPT_STRBUF, 0, 0, desc } 248 249 #define OPT_NUM(letter, name, field, min, max, desc) \ 250 { letter, name, &diskStructure->field, \ 251 sizeof(diskStructure->field) == 8 ? OPT_INT64 : \ 252 (sizeof(diskStructure->field) == 4 ? OPT_INT32 : \ 253 (sizeof(diskStructure->field) == 2 ? OPT_INT16 : OPT_INT8)), \ 254 min, max, desc } 255 256 #define OPT_BOOL(letter, name, field, desc) \ 257 OPT_NUM(letter, name, field, 0, 1, desc) 258 259 const option_t cd9660_options[] = { 260 OPT_NUM('l', "isolevel", isoLevel, 261 1, 2, "ISO Level"), 262 OPT_NUM('v', "verbose", verbose_level, 263 0, 2, "Turns on verbose output"), 264 265 OPT_BOOL('R', "rockridge", rock_ridge_enabled, 266 "Enable Rock-Ridge extensions"), 267 OPT_BOOL('C', "chrp-boot", chrp_boot, 268 "Enable CHRP boot"), 269 OPT_BOOL('K', "keep-bad-images", keep_bad_images, 270 "Keep bad images"), 271 OPT_BOOL('D', "allow-deep-trees", allow_deep_trees, 272 "Allow trees more than 8 levels"), 273 OPT_BOOL('a', "allow-max-name", allow_max_name, 274 "Allow 37 char filenames (unimplemented)"), 275 OPT_BOOL('i', "allow-illegal-chars", allow_illegal_chars, 276 "Allow illegal characters in filenames"), 277 OPT_BOOL('m', "allow-multidot", allow_multidot, 278 "Allow multiple periods in filenames"), 279 OPT_BOOL('o', "omit-trailing-period", omit_trailing_period, 280 "Omit trailing periods in filenames"), 281 OPT_BOOL('\0', "allow-lowercase", allow_lowercase, 282 "Allow lowercase characters in filenames"), 283 OPT_BOOL('\0', "no-trailing-padding", include_padding_areas, 284 "Include padding areas"), 285 286 OPT_STR('A', "applicationid", "Application Identifier"), 287 OPT_STR('P', "publisher", "Publisher Identifier"), 288 OPT_STR('p', "preparer", "Preparer Identifier"), 289 OPT_STR('L', "label", "Disk Label"), 290 OPT_STR('V', "volumeid", "Volume Set Identifier"), 291 OPT_STR('B', "bootimage", "Boot image parameter"), 292 OPT_STR('G', "generic-bootimage", "Generic boot image param"), 293 OPT_STR('\0', "bootimagedir", "Boot image directory"), 294 OPT_STR('\0', "no-emul-boot", "No boot emulation"), 295 OPT_STR('\0', "no-boot", "No boot support"), 296 OPT_STR('\0', "hard-disk-boot", "Boot from hard disk"), 297 OPT_STR('\0', "boot-load-segment", "Boot load segment"), 298 OPT_STR('\0', "platformid", "Section Header Platform ID"), 299 300 { .name = NULL } 301 }; 302 303 fsopts->fs_specific = diskStructure; 304 fsopts->fs_options = copy_opts(cd9660_options); 305 306 cd9660_set_defaults(diskStructure); 307 } 308 309 void cd9660_cleanup_opts(fsinfo_t * fsopts)310 cd9660_cleanup_opts(fsinfo_t *fsopts) 311 { 312 free(fsopts->fs_specific); 313 free(fsopts->fs_options); 314 } 315 316 static int cd9660_arguments_set_string(const char * val,const char * fieldtitle,size_t length,char testmode,char * dest)317 cd9660_arguments_set_string(const char *val, const char *fieldtitle, 318 size_t length, char testmode, char *dest) 319 { 320 size_t len; 321 int test; 322 323 if (val == NULL) 324 warnx("error: '%s' requires a string argument", fieldtitle); 325 else if ((len = strlen(val)) <= length) { 326 if (testmode == 'd') 327 test = cd9660_valid_d_chars(val); 328 else 329 test = cd9660_valid_a_chars(val); 330 if (test) { 331 memcpy(dest, val, len); 332 if (test == 2) 333 cd9660_uppercase_characters(dest, len); 334 return 1; 335 } else 336 warnx("error: '%s' must be composed of %c-characters", 337 fieldtitle, testmode); 338 } else 339 warnx("error: '%s' must be at most 32 characters long", 340 fieldtitle); 341 return 0; 342 } 343 344 /* 345 * Command-line parsing function 346 */ 347 348 int cd9660_parse_opts(const char * option,fsinfo_t * fsopts)349 cd9660_parse_opts(const char *option, fsinfo_t *fsopts) 350 { 351 int rv, i; 352 iso9660_disk *diskStructure = fsopts->fs_specific; 353 option_t *cd9660_options = fsopts->fs_options; 354 char buf[1024]; 355 const char *name, *desc; 356 357 assert(option != NULL); 358 359 if (debug & DEBUG_FS_PARSE_OPTS) 360 printf("%s: got `%s'\n", __func__, option); 361 362 i = set_option(cd9660_options, option, buf, sizeof(buf)); 363 if (i == -1) 364 return 0; 365 366 if (cd9660_options[i].name == NULL) 367 abort(); 368 369 name = cd9660_options[i].name; 370 desc = cd9660_options[i].desc; 371 switch (cd9660_options[i].letter) { 372 case 'h': 373 case 'S': 374 rv = 0; /* this is not handled yet */ 375 break; 376 case 'L': 377 rv = cd9660_arguments_set_string(buf, desc, 32, 'd', 378 diskStructure->primaryDescriptor.volume_id); 379 break; 380 case 'A': 381 rv = cd9660_arguments_set_string(buf, desc, 128, 'a', 382 diskStructure->primaryDescriptor.application_id); 383 break; 384 case 'P': 385 rv = cd9660_arguments_set_string(buf, desc, 128, 'a', 386 diskStructure->primaryDescriptor.publisher_id); 387 break; 388 case 'p': 389 rv = cd9660_arguments_set_string(buf, desc, 128, 'a', 390 diskStructure->primaryDescriptor.preparer_id); 391 break; 392 case 'V': 393 rv = cd9660_arguments_set_string(buf, desc, 128, 'a', 394 diskStructure->primaryDescriptor.volume_set_id); 395 break; 396 /* Boot options */ 397 case 'B': 398 if (buf[0] == '\0') { 399 warnx("The Boot Image parameter requires a valid boot" 400 "information string"); 401 rv = 0; 402 } else 403 rv = cd9660_add_boot_disk(diskStructure, buf); 404 break; 405 case 'G': 406 if (buf[0] == '\0') { 407 warnx("The Generic Boot Image parameter requires a" 408 " valid boot information string"); 409 rv = 0; 410 } else 411 rv = cd9660_add_generic_bootimage(diskStructure, buf); 412 break; 413 default: 414 if (strcmp(name, "bootimagedir") == 0) { 415 /* 416 * XXXfvdl this is unused. 417 */ 418 if (buf[0] == '\0') { 419 warnx("The Boot Image Directory parameter" 420 " requires a directory name"); 421 rv = 0; 422 } else { 423 diskStructure->boot_image_directory = 424 emalloc(strlen(buf) + 1); 425 /* BIG TODO: Add the max length function here */ 426 rv = cd9660_arguments_set_string(buf, desc, 12, 427 'd', diskStructure->boot_image_directory); 428 } 429 } else if (strcmp(name, "no-emul-boot") == 0 || 430 strcmp(name, "no-boot") == 0 || 431 strcmp(name, "hard-disk-boot") == 0) { 432 /* RRIP */ 433 cd9660_eltorito_add_boot_option(diskStructure, name, 0); 434 rv = 1; 435 } else if (strcmp(name, "boot-load-segment") == 0 || 436 strcmp(name, "platformid") == 0) { 437 if (buf[0] == '\0') { 438 warnx("Option `%s' doesn't contain a value", 439 name); 440 rv = 0; 441 } else { 442 cd9660_eltorito_add_boot_option(diskStructure, 443 name, buf); 444 rv = 1; 445 } 446 } else 447 rv = 1; 448 } 449 return rv; 450 } 451 452 /* 453 * Main function for cd9660_makefs 454 * Builds the ISO image file 455 * @param const char *image The image filename to create 456 * @param const char *dir The directory that is being read 457 * @param struct fsnode *root The root node of the filesystem tree 458 * @param struct fsinfo_t *fsopts Any options 459 */ 460 void cd9660_makefs(const char * image,const char * dir,fsnode * root,fsinfo_t * fsopts)461 cd9660_makefs(const char *image, const char *dir, fsnode *root, 462 fsinfo_t *fsopts) 463 { 464 int64_t startoffset; 465 int ret, numDirectories; 466 uint64_t pathTableSectors; 467 int64_t firstAvailableSector; 468 int64_t totalSpace; 469 int error; 470 cd9660node *real_root; 471 iso9660_disk *diskStructure = fsopts->fs_specific; 472 473 if (diskStructure->verbose_level > 0) 474 printf("%s: ISO level is %i\n", __func__, 475 diskStructure->isoLevel); 476 if (diskStructure->isoLevel < 2 && 477 diskStructure->allow_multidot) 478 errx(EXIT_FAILURE, "allow-multidot requires iso level of 2"); 479 480 assert(image != NULL); 481 assert(dir != NULL); 482 assert(root != NULL); 483 484 if (diskStructure->verbose_level > 0) 485 printf("%s: image %s directory %s root %p\n", __func__, 486 image, dir, root); 487 488 /* Set up some constants. Later, these will be defined with options */ 489 490 /* Counter needed for path tables */ 491 numDirectories = 0; 492 493 /* Convert tree to our own format */ 494 /* Actually, we now need to add the REAL root node, at level 0 */ 495 496 real_root = cd9660_allocate_cd9660node(); 497 real_root->isoDirRecord = emalloc(sizeof(*real_root->isoDirRecord)); 498 /* Leave filename blank for root */ 499 memset(real_root->isoDirRecord->name, 0, 500 sizeof(real_root->isoDirRecord->name)); 501 502 real_root->level = 0; 503 diskStructure->rootNode = real_root; 504 real_root->type = CD9660_TYPE_DIR; 505 error = 0; 506 real_root->node = root; 507 cd9660_convert_structure(diskStructure, root, real_root, 1, 508 &numDirectories, &error); 509 510 if (TAILQ_EMPTY(&real_root->cn_children)) { 511 errx(EXIT_FAILURE, "%s: converted directory is empty. " 512 "Tree conversion failed", __func__); 513 } else if (error != 0) { 514 errx(EXIT_FAILURE, "%s: tree conversion failed", __func__); 515 } else { 516 if (diskStructure->verbose_level > 0) 517 printf("%s: tree converted\n", __func__); 518 } 519 520 /* Add the dot and dot dot records */ 521 cd9660_add_dot_records(diskStructure, real_root); 522 523 cd9660_setup_root_node(diskStructure); 524 525 if (diskStructure->verbose_level > 0) 526 printf("%s: done converting tree\n", __func__); 527 528 /* Rock ridge / SUSP init pass */ 529 if (diskStructure->rock_ridge_enabled) { 530 cd9660_susp_initialize(diskStructure, diskStructure->rootNode, 531 diskStructure->rootNode, NULL); 532 } 533 534 /* Build path table structure */ 535 diskStructure->pathTableLength = cd9660_generate_path_table( 536 diskStructure); 537 538 pathTableSectors = CD9660_BLOCKS(diskStructure->sectorSize, 539 diskStructure->pathTableLength); 540 541 firstAvailableSector = cd9660_setup_volume_descriptors(diskStructure); 542 if (diskStructure->is_bootable) { 543 firstAvailableSector = cd9660_setup_boot(diskStructure, 544 firstAvailableSector); 545 if (firstAvailableSector < 0) 546 errx(EXIT_FAILURE, "setup_boot failed"); 547 } 548 /* LE first, then BE */ 549 diskStructure->primaryLittleEndianTableSector = firstAvailableSector; 550 diskStructure->primaryBigEndianTableSector = 551 diskStructure->primaryLittleEndianTableSector + pathTableSectors; 552 553 /* Set the secondary ones to -1, not going to use them for now */ 554 diskStructure->secondaryBigEndianTableSector = -1; 555 diskStructure->secondaryLittleEndianTableSector = -1; 556 557 diskStructure->dataFirstSector = 558 diskStructure->primaryBigEndianTableSector + pathTableSectors; 559 if (diskStructure->verbose_level > 0) 560 printf("%s: Path table conversion complete. " 561 "Each table is %i bytes, or %" PRIu64 " sectors.\n", 562 __func__, 563 diskStructure->pathTableLength, pathTableSectors); 564 565 startoffset = diskStructure->sectorSize*diskStructure->dataFirstSector; 566 567 totalSpace = cd9660_compute_offsets(diskStructure, real_root, startoffset); 568 569 diskStructure->totalSectors = diskStructure->dataFirstSector + 570 CD9660_BLOCKS(diskStructure->sectorSize, totalSpace); 571 572 /* Disabled until pass 1 is done */ 573 if (diskStructure->rock_ridge_enabled) { 574 diskStructure->susp_continuation_area_start_sector = 575 diskStructure->totalSectors; 576 diskStructure->totalSectors += 577 CD9660_BLOCKS(diskStructure->sectorSize, 578 diskStructure->susp_continuation_area_size); 579 cd9660_susp_finalize(diskStructure, diskStructure->rootNode); 580 } 581 582 583 cd9660_finalize_PVD(diskStructure); 584 585 /* Add padding sectors, just for testing purposes right now */ 586 /* diskStructure->totalSectors+=150; */ 587 588 /* Debugging output */ 589 if (diskStructure->verbose_level > 0) { 590 printf("%s: Sectors 0-15 reserved\n", __func__); 591 printf("%s: Primary path tables starts in sector %" 592 PRId64 "\n", __func__, 593 diskStructure->primaryLittleEndianTableSector); 594 printf("%s: File data starts in sector %" 595 PRId64 "\n", __func__, diskStructure->dataFirstSector); 596 printf("%s: Total sectors: %" 597 PRId64 "\n", __func__, diskStructure->totalSectors); 598 } 599 600 /* 601 * Add padding sectors at the end 602 * TODO: Clean this up and separate padding 603 */ 604 if (diskStructure->include_padding_areas) 605 diskStructure->totalSectors += 150; 606 607 ret = cd9660_write_image(diskStructure, image); 608 609 if (diskStructure->verbose_level > 1) { 610 debug_print_volume_descriptor_information(diskStructure); 611 debug_print_tree(diskStructure, real_root, 0); 612 debug_print_path_tree(real_root); 613 } 614 615 /* Clean up data structures */ 616 cd9660_free_structure(real_root); 617 618 if (diskStructure->verbose_level > 0) 619 printf("%s: done ret = %d\n", __func__, ret); 620 621 if (ret == 0) /* cd9660_write_image() failed */ 622 exit(1); 623 } 624 625 /* Generic function pointer - implement later */ 626 typedef int (*cd9660node_func)(cd9660node *); 627 628 static void cd9660_finalize_PVD(iso9660_disk * diskStructure)629 cd9660_finalize_PVD(iso9660_disk *diskStructure) 630 { 631 time_t tstamp = stampst.st_ino ? stampst.st_mtime : time(NULL); 632 633 /* root should be a fixed size of 34 bytes since it has no name */ 634 memcpy(diskStructure->primaryDescriptor.root_directory_record, 635 diskStructure->rootNode->dot_record->isoDirRecord, 34); 636 637 /* In RRIP, this might be longer than 34 */ 638 diskStructure->primaryDescriptor.root_directory_record[0] = 34; 639 640 /* Set up all the important numbers in the PVD */ 641 cd9660_bothendian_dword(diskStructure->totalSectors, 642 (unsigned char *)diskStructure->primaryDescriptor.volume_space_size); 643 cd9660_bothendian_word(1, 644 (unsigned char *)diskStructure->primaryDescriptor.volume_set_size); 645 cd9660_bothendian_word(1, 646 (unsigned char *) 647 diskStructure->primaryDescriptor.volume_sequence_number); 648 cd9660_bothendian_word(diskStructure->sectorSize, 649 (unsigned char *) 650 diskStructure->primaryDescriptor.logical_block_size); 651 cd9660_bothendian_dword(diskStructure->pathTableLength, 652 (unsigned char *)diskStructure->primaryDescriptor.path_table_size); 653 654 cd9660_731(diskStructure->primaryLittleEndianTableSector, 655 (u_char *)diskStructure->primaryDescriptor.type_l_path_table); 656 cd9660_732(diskStructure->primaryBigEndianTableSector, 657 (u_char *)diskStructure->primaryDescriptor.type_m_path_table); 658 659 diskStructure->primaryDescriptor.file_structure_version[0] = 1; 660 661 /* Pad all strings with spaces instead of nulls */ 662 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.volume_id, 32); 663 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.system_id, 32); 664 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.volume_set_id, 665 128); 666 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.publisher_id, 667 128); 668 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.preparer_id, 669 128); 670 cd9660_pad_string_spaces(diskStructure->primaryDescriptor.application_id, 671 128); 672 cd9660_pad_string_spaces( 673 diskStructure->primaryDescriptor.copyright_file_id, 37); 674 cd9660_pad_string_spaces( 675 diskStructure->primaryDescriptor.abstract_file_id, 37); 676 cd9660_pad_string_spaces( 677 diskStructure->primaryDescriptor.bibliographic_file_id, 37); 678 679 /* Setup dates */ 680 cd9660_time_8426( 681 (unsigned char *)diskStructure->primaryDescriptor.creation_date, 682 tstamp); 683 cd9660_time_8426( 684 (unsigned char *)diskStructure->primaryDescriptor.modification_date, 685 tstamp); 686 687 #if 0 688 cd9660_set_date(diskStructure->primaryDescriptor.expiration_date, 689 tstamp); 690 #endif 691 692 memset(diskStructure->primaryDescriptor.expiration_date, '0', 16); 693 diskStructure->primaryDescriptor.expiration_date[16] = 0; 694 695 cd9660_time_8426( 696 (unsigned char *)diskStructure->primaryDescriptor.effective_date, 697 tstamp); 698 /* make this sane */ 699 cd9660_time_915(diskStructure->rootNode->dot_record->isoDirRecord->date, 700 tstamp); 701 } 702 703 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)704 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record, 705 u_char ext_attr_length, u_char flags, 706 u_char name_len, const char * name) 707 { 708 time_t tstamp = stampst.st_ino ? stampst.st_mtime : time(NULL); 709 710 record->ext_attr_length[0] = ext_attr_length; 711 cd9660_time_915(record->date, tstamp); 712 record->flags[0] = ISO_FLAG_CLEAR | flags; 713 record->file_unit_size[0] = 0; 714 record->interleave[0] = 0; 715 cd9660_bothendian_word(1, record->volume_sequence_number); 716 record->name_len[0] = name_len; 717 memset(record->name, '\0', sizeof (record->name)); 718 memcpy(record->name, name, name_len); 719 record->length[0] = 33 + name_len; 720 721 /* Todo : better rounding */ 722 record->length[0] += (record->length[0] & 1) ? 1 : 0; 723 } 724 725 static void cd9660_setup_root_node(iso9660_disk * diskStructure)726 cd9660_setup_root_node(iso9660_disk *diskStructure) 727 { 728 cd9660_populate_iso_dir_record(diskStructure->rootNode->isoDirRecord, 729 0, ISO_FLAG_DIRECTORY, 1, "\0"); 730 731 } 732 733 /*********** SUPPORT FUNCTIONS ***********/ 734 static int cd9660_setup_volume_descriptors(iso9660_disk * diskStructure)735 cd9660_setup_volume_descriptors(iso9660_disk *diskStructure) 736 { 737 /* Boot volume descriptor should come second */ 738 int sector = 16; 739 /* For now, a fixed 2 : PVD and terminator */ 740 volume_descriptor *temp, *t; 741 742 /* Set up the PVD */ 743 temp = emalloc(sizeof(*temp)); 744 temp->volumeDescriptorData = 745 (unsigned char *)&diskStructure->primaryDescriptor; 746 temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD; 747 temp->volumeDescriptorData[6] = 1; 748 temp->sector = sector; 749 memcpy(temp->volumeDescriptorData + 1, 750 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 751 diskStructure->firstVolumeDescriptor = temp; 752 753 sector++; 754 /* Set up boot support if enabled. BVD must reside in sector 17 */ 755 if (diskStructure->is_bootable) { 756 t = emalloc(sizeof(*t)); 757 t->volumeDescriptorData = ecalloc(1, 2048); 758 temp->next = t; 759 temp = t; 760 t->sector = 17; 761 if (diskStructure->verbose_level > 0) 762 printf("Setting up boot volume descriptor\n"); 763 cd9660_setup_boot_volume_descriptor(diskStructure, t); 764 sector++; 765 } 766 767 /* Set up the terminator */ 768 t = emalloc(sizeof(*t)); 769 t->volumeDescriptorData = ecalloc(1, 2048); 770 temp->next = t; 771 t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR; 772 t->next = NULL; 773 t->volumeDescriptorData[6] = 1; 774 t->sector = sector; 775 memcpy(t->volumeDescriptorData + 1, 776 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 777 778 sector++; 779 return sector; 780 } 781 782 #if 0 783 /* 784 * Populate EAR at some point. Not required, but is used by NetBSD's 785 * cd9660 support 786 */ 787 static int 788 cd9660_fill_extended_attribute_record(cd9660node *node) 789 { 790 node->isoExtAttributes = emalloc(sizeof(*node->isoExtAttributes)); 791 return 1; 792 } 793 #endif 794 795 static int cd9660_translate_node_common(iso9660_disk * diskStructure,cd9660node * newnode)796 cd9660_translate_node_common(iso9660_disk *diskStructure, cd9660node *newnode) 797 { 798 u_char flag; 799 char temp[ISO_FILENAME_MAXLENGTH]; 800 801 /* Now populate the isoDirRecord structure */ 802 memset(temp, 0, sizeof(temp)); 803 804 (void)cd9660_convert_filename(diskStructure, newnode->node->name, 805 temp, sizeof(temp), !(S_ISDIR(newnode->node->type))); 806 807 flag = ISO_FLAG_CLEAR; 808 if (S_ISDIR(newnode->node->type)) 809 flag |= ISO_FLAG_DIRECTORY; 810 811 cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0, 812 flag, strlen(temp), temp); 813 814 cd9660_bothendian_dword(newnode->fileDataLength, 815 newnode->isoDirRecord->size); 816 /* If the file is a link, we want to set the size to 0 */ 817 if (S_ISLNK(newnode->node->type)) 818 newnode->fileDataLength = 0; 819 820 return 1; 821 } 822 823 /* 824 * Translate fsnode to cd9660node 825 * Translate filenames and other metadata, including dates, sizes, 826 * permissions, etc 827 * @param struct fsnode * The node generated by makefs 828 * @param struct cd9660node * The intermediate node to be written to 829 * @returns int 0 on failure, 1 on success 830 */ 831 static int cd9660_translate_node(iso9660_disk * diskStructure,fsnode * node,cd9660node * newnode)832 cd9660_translate_node(iso9660_disk *diskStructure, fsnode *node, 833 cd9660node *newnode) 834 { 835 if (node == NULL) { 836 if (diskStructure->verbose_level > 0) 837 printf("%s: NULL node passed, returning\n", __func__); 838 return 0; 839 } 840 newnode->isoDirRecord = emalloc(sizeof(*newnode->isoDirRecord)); 841 /* Set the node pointer */ 842 newnode->node = node; 843 844 /* Set the size */ 845 if (!(S_ISDIR(node->type))) 846 newnode->fileDataLength = node->inode->st.st_size; 847 848 if (cd9660_translate_node_common(diskStructure, newnode) == 0) 849 return 0; 850 851 /* Finally, overwrite some of the values that are set by default */ 852 cd9660_time_915(newnode->isoDirRecord->date, 853 stampst.st_ino ? stampst.st_mtime : node->inode->st.st_mtime); 854 855 return 1; 856 } 857 858 /* 859 * Compares two ISO filenames 860 * @param const char * The first file name 861 * @param const char * The second file name 862 * @returns : -1 if first is less than second, 0 if they are the same, 1 if 863 * the second is greater than the first 864 */ 865 static int cd9660_compare_filename(const char * first,const char * second)866 cd9660_compare_filename(const char *first, const char *second) 867 { 868 /* 869 * This can be made more optimal once it has been tested 870 * (the extra character, for example, is for testing) 871 */ 872 873 int p1 = 0; 874 int p2 = 0; 875 char c1, c2; 876 /* First, on the filename */ 877 878 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1 879 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION-1) { 880 c1 = first[p1]; 881 c2 = second[p2]; 882 if (c1 == '.' && c2 =='.') 883 break; 884 else if (c1 == '.') { 885 p2++; 886 c1 = ' '; 887 } else if (c2 == '.') { 888 p1++; 889 c2 = ' '; 890 } else { 891 p1++; 892 p2++; 893 } 894 895 if (c1 < c2) 896 return -1; 897 else if (c1 > c2) { 898 return 1; 899 } 900 } 901 902 if (first[p1] == '.' && second[p2] == '.') { 903 p1++; 904 p2++; 905 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1 906 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) { 907 c1 = first[p1]; 908 c2 = second[p2]; 909 if (c1 == ';' && c2 == ';') 910 break; 911 else if (c1 == ';') { 912 p2++; 913 c1 = ' '; 914 } else if (c2 == ';') { 915 p1++; 916 c2 = ' '; 917 } else { 918 p1++; 919 p2++; 920 } 921 922 if (c1 < c2) 923 return -1; 924 else if (c1 > c2) 925 return 1; 926 } 927 } 928 return 0; 929 } 930 931 /* 932 * Insert a node into list with ISO sorting rules 933 * @param cd9660node * The head node of the list 934 * @param cd9660node * The node to be inserted 935 */ 936 static void cd9660_sorted_child_insert(cd9660node * parent,cd9660node * cn_new)937 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new) 938 { 939 int compare; 940 cd9660node *cn; 941 struct cd9660_children_head *head = &parent->cn_children; 942 943 /* TODO: Optimize? */ 944 cn_new->parent = parent; 945 946 /* 947 * first will either be 0, the . or the .. 948 * if . or .., this means no other entry may be written before first 949 * if 0, the new node may be inserted at the head 950 */ 951 952 TAILQ_FOREACH(cn, head, cn_next_child) { 953 /* 954 * Dont insert a node twice - 955 * that would cause an infinite loop 956 */ 957 if (cn_new == cn) 958 return; 959 960 compare = cd9660_compare_filename(cn_new->isoDirRecord->name, 961 cn->isoDirRecord->name); 962 963 if (compare == 0) 964 compare = cd9660_compare_filename(cn_new->node->name, 965 cn->node->name); 966 967 if (compare < 0) 968 break; 969 } 970 if (cn == NULL) 971 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child); 972 else 973 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child); 974 } 975 976 /* 977 * Called After cd9660_sorted_child_insert 978 * handles file collisions by suffixing each filename with ~n 979 * where n represents the files respective place in the ordering 980 */ 981 static int cd9660_handle_collisions(iso9660_disk * diskStructure,cd9660node * colliding,int past)982 cd9660_handle_collisions(iso9660_disk *diskStructure, cd9660node *colliding, 983 int past) 984 { 985 cd9660node *iter, *next, *prev; 986 int skip; 987 int delete_chars = 0; 988 int temp_past = past; 989 int temp_skip; 990 int flag = 0; 991 cd9660node *end_of_range; 992 993 for (iter = TAILQ_FIRST(&colliding->cn_children); 994 iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) { 995 if (strcmp(iter->isoDirRecord->name, 996 next->isoDirRecord->name) != 0) { 997 iter = TAILQ_NEXT(iter, cn_next_child); 998 continue; 999 } 1000 flag = 1; 1001 temp_skip = skip = cd9660_count_collisions(iter); 1002 end_of_range = iter; 1003 while (temp_skip > 0) { 1004 temp_skip--; 1005 end_of_range = TAILQ_NEXT(end_of_range, cn_next_child); 1006 } 1007 temp_past = past; 1008 while (temp_past > 0) { 1009 if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL) 1010 end_of_range = next; 1011 else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL) 1012 iter = prev; 1013 else 1014 delete_chars++; 1015 temp_past--; 1016 } 1017 skip += past; 1018 iter = cd9660_rename_filename(diskStructure, iter, skip, 1019 delete_chars); 1020 } 1021 return flag; 1022 } 1023 1024 1025 static cd9660node * cd9660_rename_filename(iso9660_disk * diskStructure,cd9660node * iter,int num,int delete_chars)1026 cd9660_rename_filename(iso9660_disk *diskStructure, cd9660node *iter, int num, 1027 int delete_chars) 1028 { 1029 int i = 0; 1030 int numbts, digit, digits, temp, powers, count; 1031 char *naming; 1032 int maxlength; 1033 char *tmp; 1034 1035 if (diskStructure->verbose_level > 0) 1036 printf("Rename_filename called\n"); 1037 1038 assert(1 <= diskStructure->isoLevel && diskStructure->isoLevel <= 2); 1039 /* TODO : A LOT of chanes regarding 8.3 filenames */ 1040 if (diskStructure->isoLevel == 1) 1041 maxlength = 8; 1042 else if (diskStructure->isoLevel == 2) 1043 maxlength = 31; 1044 else 1045 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION; 1046 1047 tmp = emalloc(ISO_FILENAME_MAXLENGTH); 1048 1049 while (i < num && iter) { 1050 powers = 1; 1051 count = 0; 1052 digits = 1; 1053 while (((int)(i / powers) ) >= 10) { 1054 digits++; 1055 powers = powers * 10; 1056 } 1057 1058 naming = iter->o_name; 1059 1060 /* 1061 while ((*naming != '.') && (*naming != ';')) { 1062 naming++; 1063 count++; 1064 } 1065 */ 1066 1067 while (count < maxlength) { 1068 if (*naming == ';') 1069 break; 1070 naming++; 1071 count++; 1072 } 1073 1074 if ((count + digits) < maxlength) 1075 numbts = count; 1076 else 1077 numbts = maxlength - (digits); 1078 numbts -= delete_chars; 1079 1080 /* 8.3 rules - keep the extension, add before the dot */ 1081 1082 /* 1083 * This code makes a bunch of assumptions. 1084 * See if you can spot them all :) 1085 */ 1086 1087 #if 0 1088 if (diskStructure->isoLevel == 1) { 1089 numbts = 8 - digits - delete_chars; 1090 if (dot < 0) { 1091 1092 } else { 1093 if (dot < 8) { 1094 memmove(&tmp[numbts],&tmp[dot],4); 1095 } 1096 } 1097 } 1098 #endif 1099 1100 /* (copying just the filename before the '.' */ 1101 memcpy(tmp, (iter->o_name), numbts); 1102 1103 /* adding the appropriate number following the name */ 1104 temp = i; 1105 while (digits > 0) { 1106 digit = (int)(temp / powers); 1107 temp = temp - digit * powers; 1108 snprintf(&tmp[numbts], ISO_FILENAME_MAXLENGTH - numbts, 1109 "%d", digit); 1110 digits--; 1111 numbts++; 1112 powers = powers / 10; 1113 } 1114 1115 while ((*naming != ';') && (numbts < maxlength)) { 1116 tmp[numbts] = (*naming); 1117 naming++; 1118 numbts++; 1119 } 1120 1121 tmp[numbts] = ';'; 1122 tmp[numbts+1] = '1'; 1123 tmp[numbts+2] = '\0'; 1124 1125 /* 1126 * now tmp has exactly the identifier 1127 * we want so we'll copy it back to record 1128 */ 1129 memcpy((iter->isoDirRecord->name), tmp, numbts + 3); 1130 1131 iter = TAILQ_NEXT(iter, cn_next_child); 1132 i++; 1133 } 1134 1135 free(tmp); 1136 return iter; 1137 } 1138 1139 /* Todo: Figure out why these functions are nec. */ 1140 static void cd9660_copy_filenames(iso9660_disk * diskStructure,cd9660node * node)1141 cd9660_copy_filenames(iso9660_disk *diskStructure, cd9660node *node) 1142 { 1143 cd9660node *cn; 1144 1145 if (TAILQ_EMPTY(&node->cn_children)) 1146 return; 1147 1148 if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) { 1149 debug_print_tree(diskStructure, diskStructure->rootNode, 0); 1150 exit(1); 1151 } 1152 1153 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1154 cd9660_copy_filenames(diskStructure, cn); 1155 memcpy(cn->o_name, cn->isoDirRecord->name, sizeof(cn->o_name)); 1156 } 1157 } 1158 1159 static void cd9660_sorting_nodes(cd9660node * node)1160 cd9660_sorting_nodes(cd9660node *node) 1161 { 1162 cd9660node *cn; 1163 1164 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) 1165 cd9660_sorting_nodes(cn); 1166 cd9660_sort_nodes(node); 1167 } 1168 1169 /* XXX Bubble sort. */ 1170 static void cd9660_sort_nodes(cd9660node * node)1171 cd9660_sort_nodes(cd9660node *node) 1172 { 1173 cd9660node *cn, *next; 1174 1175 do { 1176 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1177 if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL) 1178 return; 1179 else if (strcmp(next->isoDirRecord->name, 1180 cn->isoDirRecord->name) >= 0) 1181 continue; 1182 TAILQ_REMOVE(&node->cn_children, next, cn_next_child); 1183 TAILQ_INSERT_BEFORE(cn, next, cn_next_child); 1184 break; 1185 } 1186 } while (cn != NULL); 1187 } 1188 1189 static int cd9660_count_collisions(cd9660node * copy)1190 cd9660_count_collisions(cd9660node *copy) 1191 { 1192 int count = 0; 1193 cd9660node *iter, *next; 1194 1195 for (iter = copy; 1196 (next = TAILQ_NEXT(iter, cn_next_child)) != NULL; 1197 iter = next) { 1198 if (cd9660_compare_filename(iter->isoDirRecord->name, 1199 next->isoDirRecord->name) == 0) 1200 count++; 1201 else 1202 return count; 1203 } 1204 #if 0 1205 if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) { 1206 printf("%s: count is %i\n", __func__, count); 1207 compare = cd9660_compare_filename(iter->isoDirRecord->name, 1208 next->isoDirRecord->name); 1209 if (compare == 0) { 1210 count++; 1211 return cd9660_recurse_on_collision(next, count); 1212 } else 1213 return count; 1214 } 1215 #endif 1216 return count; 1217 } 1218 1219 static cd9660node * cd9660_rrip_move_directory(iso9660_disk * diskStructure,cd9660node * dir)1220 cd9660_rrip_move_directory(iso9660_disk *diskStructure, cd9660node *dir) 1221 { 1222 char newname[9]; 1223 cd9660node *tfile; 1224 1225 /* 1226 * This function needs to: 1227 * 1) Create an empty virtual file in place of the old directory 1228 * 2) Point the virtual file to the new directory 1229 * 3) Point the relocated directory to its old parent 1230 * 4) Move the directory specified by dir into rr_moved_dir, 1231 * and rename it to "diskStructure->rock_ridge_move_count" (as a string) 1232 */ 1233 1234 /* First see if the moved directory even exists */ 1235 if (diskStructure->rr_moved_dir == NULL) { 1236 diskStructure->rr_moved_dir = cd9660_create_directory( 1237 diskStructure, ISO_RRIP_DEFAULT_MOVE_DIR_NAME, 1238 diskStructure->rootNode, dir); 1239 if (diskStructure->rr_moved_dir == NULL) 1240 return 0; 1241 cd9660_time_915(diskStructure->rr_moved_dir->isoDirRecord->date, 1242 stampst.st_ino ? stampst.st_mtime : start_time.tv_sec); 1243 } 1244 1245 /* Create a file with the same ORIGINAL name */ 1246 tfile = cd9660_create_file(diskStructure, dir->node->name, dir->parent, 1247 dir); 1248 if (tfile == NULL) 1249 return NULL; 1250 1251 diskStructure->rock_ridge_move_count++; 1252 snprintf(newname, sizeof(newname), "%08u", 1253 diskStructure->rock_ridge_move_count); 1254 1255 /* Point to old parent */ 1256 dir->rr_real_parent = dir->parent; 1257 1258 /* Place the placeholder file */ 1259 if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) { 1260 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile, 1261 cn_next_child); 1262 } else { 1263 cd9660_sorted_child_insert(dir->rr_real_parent, tfile); 1264 } 1265 1266 /* Point to new parent */ 1267 dir->parent = diskStructure->rr_moved_dir; 1268 1269 /* Point the file to the moved directory */ 1270 tfile->rr_relocated = dir; 1271 1272 /* Actually move the directory */ 1273 cd9660_sorted_child_insert(diskStructure->rr_moved_dir, dir); 1274 1275 /* TODO: Inherit permissions / ownership (basically the entire inode) */ 1276 1277 /* Set the new name */ 1278 memset(dir->isoDirRecord->name, 0, sizeof(dir->isoDirRecord->name)); 1279 strncpy(dir->isoDirRecord->name, newname, 8); 1280 dir->isoDirRecord->length[0] = 34 + 8; 1281 dir->isoDirRecord->name_len[0] = 8; 1282 1283 return dir; 1284 } 1285 1286 static int cd9660_add_dot_records(iso9660_disk * diskStructure,cd9660node * root)1287 cd9660_add_dot_records(iso9660_disk *diskStructure, cd9660node *root) 1288 { 1289 struct cd9660_children_head *head = &root->cn_children; 1290 cd9660node *cn; 1291 1292 TAILQ_FOREACH(cn, head, cn_next_child) { 1293 if ((cn->type & CD9660_TYPE_DIR) == 0) 1294 continue; 1295 /* Recursion first */ 1296 cd9660_add_dot_records(diskStructure, cn); 1297 } 1298 cd9660_create_special_directory(diskStructure, CD9660_TYPE_DOT, root); 1299 cd9660_create_special_directory(diskStructure, CD9660_TYPE_DOTDOT, 1300 root); 1301 return 1; 1302 } 1303 1304 /* 1305 * Convert node to cd9660 structure 1306 * This function is designed to be called recursively on the root node of 1307 * the filesystem 1308 * Lots of recursion going on here, want to make sure it is efficient 1309 * @param struct fsnode * The root node to be converted 1310 * @param struct cd9660* The parent node (should not be NULL) 1311 * @param int Current directory depth 1312 * @param int* Running count of the number of directories that are being created 1313 */ 1314 static void cd9660_convert_structure(iso9660_disk * diskStructure,fsnode * root,cd9660node * parent_node,int level,int * numDirectories,int * error)1315 cd9660_convert_structure(iso9660_disk *diskStructure, fsnode *root, 1316 cd9660node *parent_node, int level, int *numDirectories, int *error) 1317 { 1318 fsnode *iterator = root; 1319 cd9660node *this_node; 1320 int working_level; 1321 int add; 1322 int flag = 0; 1323 int counter = 0; 1324 1325 /* 1326 * Newer, more efficient method, reduces recursion depth 1327 */ 1328 if (root == NULL) { 1329 warnx("%s: root is null", __func__); 1330 return; 1331 } 1332 1333 /* Test for an empty directory - makefs still gives us the . record */ 1334 if ((S_ISDIR(root->type)) && (root->name[0] == '.') 1335 && (root->name[1] == '\0')) { 1336 root = root->next; 1337 if (root == NULL) 1338 return; 1339 } 1340 if ((this_node = cd9660_allocate_cd9660node()) == NULL) { 1341 CD9660_MEM_ALLOC_ERROR(__func__); 1342 } 1343 1344 /* 1345 * To reduce the number of recursive calls, we will iterate over 1346 * the next pointers to the right. 1347 */ 1348 while (iterator != NULL) { 1349 add = 1; 1350 /* 1351 * Increment the directory count if this is a directory 1352 * Ignore "." entries. We will generate them later 1353 */ 1354 if (!S_ISDIR(iterator->type) || 1355 strcmp(iterator->name, ".") != 0) { 1356 1357 /* Translate the node, including its filename */ 1358 this_node->parent = parent_node; 1359 cd9660_translate_node(diskStructure, iterator, 1360 this_node); 1361 this_node->level = level; 1362 1363 if (S_ISDIR(iterator->type)) { 1364 (*numDirectories)++; 1365 this_node->type = CD9660_TYPE_DIR; 1366 working_level = level + 1; 1367 1368 /* 1369 * If at level 8, directory would be at 8 1370 * and have children at 9 which is not 1371 * allowed as per ISO spec 1372 */ 1373 if (level == 8) { 1374 if ((!diskStructure->allow_deep_trees) && 1375 (!diskStructure->rock_ridge_enabled)) { 1376 warnx("error: found entry " 1377 "with depth greater " 1378 "than 8."); 1379 (*error) = 1; 1380 return; 1381 } else if (diskStructure-> 1382 rock_ridge_enabled) { 1383 working_level = 3; 1384 /* 1385 * Moved directory is actually 1386 * at level 2. 1387 */ 1388 this_node->level = 1389 working_level - 1; 1390 if (cd9660_rrip_move_directory( 1391 diskStructure, 1392 this_node) == NULL) { 1393 warnx("Failure in " 1394 "cd9660_rrip_" 1395 "move_directory" 1396 ); 1397 (*error) = 1; 1398 return; 1399 } 1400 add = 0; 1401 } 1402 } 1403 1404 /* Do the recursive call on the children */ 1405 if (iterator->child != NULL) { 1406 cd9660_convert_structure(diskStructure, 1407 iterator->child, this_node, 1408 working_level, 1409 numDirectories, error); 1410 1411 if ((*error) == 1) { 1412 warnx("%s: Error on recursive " 1413 "call", __func__); 1414 return; 1415 } 1416 } 1417 1418 } else { 1419 /* Only directories should have children */ 1420 assert(iterator->child == NULL); 1421 1422 this_node->type = CD9660_TYPE_FILE; 1423 } 1424 1425 /* 1426 * Finally, do a sorted insert 1427 */ 1428 if (add) { 1429 cd9660_sorted_child_insert( 1430 parent_node, this_node); 1431 } 1432 1433 /*Allocate new temp_node */ 1434 if (iterator->next != NULL) { 1435 this_node = cd9660_allocate_cd9660node(); 1436 if (this_node == NULL) 1437 CD9660_MEM_ALLOC_ERROR(__func__); 1438 } 1439 } 1440 iterator = iterator->next; 1441 } 1442 1443 /* cd9660_handle_collisions(first_node); */ 1444 1445 /* TODO: need cleanup */ 1446 cd9660_copy_filenames(diskStructure, parent_node); 1447 1448 do { 1449 flag = cd9660_handle_collisions(diskStructure, parent_node, 1450 counter); 1451 counter++; 1452 cd9660_sorting_nodes(parent_node); 1453 } while ((flag == 1) && (counter < 100)); 1454 } 1455 1456 /* 1457 * Clean up the cd9660node tree 1458 * This is designed to be called recursively on the root node 1459 * @param struct cd9660node *root The node to free 1460 * @returns void 1461 */ 1462 static void cd9660_free_structure(cd9660node * root)1463 cd9660_free_structure(cd9660node *root) 1464 { 1465 cd9660node *cn; 1466 1467 while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) { 1468 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child); 1469 cd9660_free_structure(cn); 1470 } 1471 free(root); 1472 } 1473 1474 /* 1475 * Be a little more memory conservative: 1476 * instead of having the TAILQ_ENTRY as part of the cd9660node, 1477 * just create a temporary structure 1478 */ 1479 static struct ptq_entry 1480 { 1481 TAILQ_ENTRY(ptq_entry) ptq; 1482 cd9660node *node; 1483 } *n; 1484 1485 #define PTQUEUE_NEW(n,s,r,t){\ 1486 n = emalloc(sizeof(struct s)); \ 1487 n->node = t;\ 1488 } 1489 1490 /* 1491 * Generate the path tables 1492 * The specific implementation of this function is left as an exercise to the 1493 * programmer. It could be done recursively. Make sure you read how the path 1494 * table has to be laid out, it has levels. 1495 * @param struct iso9660_disk *disk The disk image 1496 * @returns int The number of built path tables (between 1 and 4), 0 on failure 1497 */ 1498 static int cd9660_generate_path_table(iso9660_disk * diskStructure)1499 cd9660_generate_path_table(iso9660_disk *diskStructure) 1500 { 1501 cd9660node *cn, *dirNode = diskStructure->rootNode; 1502 cd9660node *last = dirNode; 1503 int pathTableSize = 0; /* computed as we go */ 1504 int counter = 1; /* root gets a count of 0 */ 1505 1506 TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head; 1507 TAILQ_INIT(&pt_head); 1508 1509 PTQUEUE_NEW(n, ptq_entry, -1, diskStructure->rootNode); 1510 1511 /* Push the root node */ 1512 TAILQ_INSERT_HEAD(&pt_head, n, ptq); 1513 1514 /* Breadth-first traversal of file structure */ 1515 while (!TAILQ_EMPTY(&pt_head)) { 1516 n = TAILQ_FIRST(&pt_head); 1517 dirNode = n->node; 1518 TAILQ_REMOVE(&pt_head, n, ptq); 1519 free(n); 1520 1521 /* Update the size */ 1522 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE 1523 + dirNode->isoDirRecord->name_len[0]+ 1524 (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1); 1525 /* includes the padding bit */ 1526 1527 dirNode->ptnumber=counter; 1528 if (dirNode != last) { 1529 last->ptnext = dirNode; 1530 dirNode->ptprev = last; 1531 } 1532 last = dirNode; 1533 1534 /* Push children onto queue */ 1535 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) { 1536 /* 1537 * Dont add the DOT and DOTDOT types to the path 1538 * table. 1539 */ 1540 if ((cn->type != CD9660_TYPE_DOT) 1541 && (cn->type != CD9660_TYPE_DOTDOT)) { 1542 1543 if (S_ISDIR(cn->node->type)) { 1544 PTQUEUE_NEW(n, ptq_entry, -1, cn); 1545 TAILQ_INSERT_TAIL(&pt_head, n, ptq); 1546 } 1547 } 1548 } 1549 counter++; 1550 } 1551 return pathTableSize; 1552 } 1553 1554 void cd9660_compute_full_filename(cd9660node * node,char * buf)1555 cd9660_compute_full_filename(cd9660node *node, char *buf) 1556 { 1557 int len; 1558 1559 len = PATH_MAX; 1560 len = snprintf(buf, len, "%s/%s/%s", node->node->root, 1561 node->node->path, node->node->name); 1562 if (len >= PATH_MAX) 1563 errx(EXIT_FAILURE, "Pathname too long."); 1564 } 1565 1566 /* 1567 * TODO: These two functions are almost identical. 1568 * Some code cleanup is possible here 1569 * 1570 * XXX bounds checking! 1571 */ 1572 static int cd9660_level1_convert_filename(iso9660_disk * diskStructure,const char * oldname,char * newname,size_t newnamelen,int is_file)1573 cd9660_level1_convert_filename(iso9660_disk *diskStructure, const char *oldname, 1574 char *newname, size_t newnamelen, int is_file) 1575 { 1576 /* 1577 * ISO 9660 : 10.1 1578 * File Name shall not contain more than 8 d or d1 characters 1579 * File Name Extension shall not contain more than 3 d or d1 characters 1580 * Directory Identifier shall not contain more than 8 d or d1 characters 1581 */ 1582 int namelen = 0; 1583 int extlen = 0; 1584 int found_ext = 0; 1585 char *orignewname = newname; 1586 1587 while (*oldname != '\0' && extlen < 3) { 1588 /* Handle period first, as it is special */ 1589 if (*oldname == '.') { 1590 if (found_ext) { 1591 *newname++ = '_'; 1592 extlen ++; 1593 } 1594 else { 1595 *newname++ = '.'; 1596 found_ext = 1; 1597 } 1598 } else { 1599 /* Enforce 12.3 / 8 */ 1600 if (namelen == 8 && !found_ext) 1601 break; 1602 1603 if (islower((unsigned char)*oldname)) 1604 *newname++ = toupper((unsigned char)*oldname); 1605 else if (isupper((unsigned char)*oldname) 1606 || isdigit((unsigned char)*oldname)) 1607 *newname++ = *oldname; 1608 else 1609 *newname++ = '_'; 1610 1611 if (found_ext) 1612 extlen++; 1613 else 1614 namelen++; 1615 } 1616 oldname++; 1617 } 1618 if (is_file) { 1619 if (!found_ext && !diskStructure->omit_trailing_period) 1620 *newname++ = '.'; 1621 /* Add version */ 1622 snprintf(newname, newnamelen - (newname - orignewname), ";%i", 1); 1623 } 1624 return namelen + extlen + found_ext; 1625 } 1626 1627 /* XXX bounds checking! */ 1628 static int cd9660_level2_convert_filename(iso9660_disk * diskStructure,const char * oldname,char * newname,size_t newnamelen,int is_file)1629 cd9660_level2_convert_filename(iso9660_disk *diskStructure, const char *oldname, 1630 char *newname, size_t newnamelen, int is_file) 1631 { 1632 /* 1633 * ISO 9660 : 7.5.1 1634 * File name : 0+ d or d1 characters 1635 * separator 1 (.) 1636 * File name extension : 0+ d or d1 characters 1637 * separator 2 (;) 1638 * File version number (5 characters, 1-32767) 1639 * 1 <= Sum of File name and File name extension <= 30 1640 */ 1641 int maxlen = is_file ? 30 : 31; 1642 int namelen = 0; 1643 int extlen = 0; 1644 int found_ext = 0; 1645 char *orignewname = newname; 1646 1647 while (*oldname != '\0' && namelen + extlen < maxlen) { 1648 /* Handle period first, as it is special */ 1649 if (*oldname == '.' && is_file) { 1650 if (found_ext) { 1651 if (diskStructure->allow_multidot) { 1652 *newname++ = '.'; 1653 } else { 1654 *newname++ = '_'; 1655 } 1656 extlen ++; 1657 } 1658 else { 1659 *newname++ = '.'; 1660 found_ext = 1; 1661 } 1662 } else { 1663 if (islower((unsigned char)*oldname)) 1664 *newname++ = toupper((unsigned char)*oldname); 1665 else if (isupper((unsigned char)*oldname) || 1666 isdigit((unsigned char)*oldname)) 1667 *newname++ = *oldname; 1668 else 1669 *newname++ = '_'; 1670 1671 if (found_ext) 1672 extlen++; 1673 else 1674 namelen++; 1675 } 1676 oldname ++; 1677 } 1678 if (is_file) { 1679 if (!found_ext && !diskStructure->omit_trailing_period) 1680 *newname++ = '.'; 1681 /* Add version */ 1682 snprintf(newname, newnamelen - (newname - orignewname), ";%i", 1); 1683 } 1684 return namelen + extlen + found_ext; 1685 } 1686 1687 /* 1688 * Convert a file name to ISO compliant file name 1689 * @param char * oldname The original filename 1690 * @param char ** newname The new file name, in the appropriate character 1691 * set and of appropriate length 1692 * @param int 1 if file, 0 if directory 1693 * @returns int The length of the new string 1694 */ 1695 static int cd9660_convert_filename(iso9660_disk * diskStructure,const char * oldname,char * newname,size_t newnamelen,int is_file)1696 cd9660_convert_filename(iso9660_disk *diskStructure, const char *oldname, 1697 char *newname, size_t newnamelen, int is_file) 1698 { 1699 assert(1 <= diskStructure->isoLevel && diskStructure->isoLevel <= 2); 1700 if (diskStructure->isoLevel == 1) 1701 return(cd9660_level1_convert_filename(diskStructure, 1702 oldname, newname, newnamelen, is_file)); 1703 else if (diskStructure->isoLevel == 2) 1704 return (cd9660_level2_convert_filename(diskStructure, 1705 oldname, newname, newnamelen, is_file)); 1706 abort(); 1707 } 1708 1709 int cd9660_compute_record_size(iso9660_disk * diskStructure,cd9660node * node)1710 cd9660_compute_record_size(iso9660_disk *diskStructure, cd9660node *node) 1711 { 1712 int size = node->isoDirRecord->length[0]; 1713 1714 if (diskStructure->rock_ridge_enabled) 1715 size += node->susp_entry_size; 1716 size += node->su_tail_size; 1717 size += size & 1; /* Ensure length of record is even. */ 1718 assert(size <= 254); 1719 return size; 1720 } 1721 1722 static void cd9660_populate_dot_records(iso9660_disk * diskStructure,cd9660node * node)1723 cd9660_populate_dot_records(iso9660_disk *diskStructure, cd9660node *node) 1724 { 1725 node->dot_record->fileDataSector = node->fileDataSector; 1726 memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34); 1727 node->dot_record->isoDirRecord->name_len[0] = 1; 1728 node->dot_record->isoDirRecord->name[0] = 0; 1729 node->dot_record->isoDirRecord->name[1] = 0; 1730 node->dot_record->isoDirRecord->length[0] = 34; 1731 node->dot_record->fileRecordSize = 1732 cd9660_compute_record_size(diskStructure, node->dot_record); 1733 1734 if (node == diskStructure->rootNode) { 1735 node->dot_dot_record->fileDataSector = node->fileDataSector; 1736 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord, 1737 34); 1738 } else { 1739 node->dot_dot_record->fileDataSector = 1740 node->parent->fileDataSector; 1741 memcpy(node->dot_dot_record->isoDirRecord, 1742 node->parent->isoDirRecord,34); 1743 } 1744 node->dot_dot_record->isoDirRecord->name_len[0] = 1; 1745 node->dot_dot_record->isoDirRecord->name[0] = 1; 1746 node->dot_dot_record->isoDirRecord->name[1] = 0; 1747 node->dot_dot_record->isoDirRecord->length[0] = 34; 1748 node->dot_dot_record->fileRecordSize = 1749 cd9660_compute_record_size(diskStructure, node->dot_dot_record); 1750 } 1751 1752 /* 1753 * @param struct cd9660node *node The node 1754 * @param int The offset (in bytes) - SHOULD align to the beginning of a sector 1755 * @returns int The total size of files and directory entries (should be 1756 * a multiple of sector size) 1757 */ 1758 static int64_t cd9660_compute_offsets(iso9660_disk * diskStructure,cd9660node * node,int64_t startOffset)1759 cd9660_compute_offsets(iso9660_disk *diskStructure, cd9660node *node, 1760 int64_t startOffset) 1761 { 1762 /* 1763 * This function needs to compute the size of directory records and 1764 * runs, file lengths, and set the appropriate variables both in 1765 * cd9660node and isoDirEntry 1766 */ 1767 int64_t used_bytes = 0; 1768 int64_t current_sector_usage = 0; 1769 cd9660node *child; 1770 fsinode *inode; 1771 int64_t r; 1772 1773 assert(node != NULL); 1774 1775 1776 /* 1777 * NOTE : There needs to be some special case detection for 1778 * the "real root" node, since for it, node->node is undefined 1779 */ 1780 1781 node->fileDataSector = -1; 1782 1783 if (node->type & CD9660_TYPE_DIR) { 1784 node->fileRecordSize = cd9660_compute_record_size( 1785 diskStructure, node); 1786 /*Set what sector this directory starts in*/ 1787 node->fileDataSector = 1788 CD9660_BLOCKS(diskStructure->sectorSize,startOffset); 1789 1790 cd9660_bothendian_dword(node->fileDataSector, 1791 node->isoDirRecord->extent); 1792 1793 /* 1794 * First loop over children, need to know the size of 1795 * their directory records 1796 */ 1797 node->fileSectorsUsed = 1; 1798 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) { 1799 node->fileDataLength += 1800 cd9660_compute_record_size(diskStructure, child); 1801 if ((cd9660_compute_record_size(diskStructure, child) + 1802 current_sector_usage) >= 1803 diskStructure->sectorSize) { 1804 current_sector_usage = 0; 1805 node->fileSectorsUsed++; 1806 } 1807 1808 current_sector_usage += 1809 cd9660_compute_record_size(diskStructure, child); 1810 } 1811 1812 cd9660_bothendian_dword(node->fileSectorsUsed * 1813 diskStructure->sectorSize,node->isoDirRecord->size); 1814 1815 /* 1816 * This should point to the sector after the directory 1817 * record (or, the first byte in that sector) 1818 */ 1819 used_bytes += node->fileSectorsUsed * diskStructure->sectorSize; 1820 1821 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1822 child != NULL; child = TAILQ_NEXT(child, cn_next_child)) { 1823 /* Directories need recursive call */ 1824 if (S_ISDIR(child->node->type)) { 1825 r = cd9660_compute_offsets(diskStructure, child, 1826 used_bytes + startOffset); 1827 1828 if (r != -1) 1829 used_bytes += r; 1830 else 1831 return -1; 1832 } 1833 } 1834 1835 /* Explicitly set the . and .. records */ 1836 cd9660_populate_dot_records(diskStructure, node); 1837 1838 /* Finally, do another iteration to write the file data*/ 1839 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1840 child != NULL; 1841 child = TAILQ_NEXT(child, cn_next_child)) { 1842 /* Files need extent set */ 1843 if (S_ISDIR(child->node->type)) 1844 continue; 1845 child->fileRecordSize = 1846 cd9660_compute_record_size(diskStructure, child); 1847 1848 child->fileSectorsUsed = 1849 CD9660_BLOCKS(diskStructure->sectorSize, 1850 child->fileDataLength); 1851 1852 inode = child->node->inode; 1853 if ((inode->flags & FI_ALLOCATED) == 0) { 1854 inode->ino = 1855 CD9660_BLOCKS(diskStructure->sectorSize, 1856 used_bytes + startOffset); 1857 inode->flags |= FI_ALLOCATED; 1858 used_bytes += child->fileSectorsUsed * 1859 diskStructure->sectorSize; 1860 } else { 1861 INODE_WARNX(("%s: already allocated inode %d " 1862 "data sectors at %" PRIu32, __func__, 1863 (int)inode->st.st_ino, inode->ino)); 1864 } 1865 child->fileDataSector = inode->ino; 1866 cd9660_bothendian_dword(child->fileDataSector, 1867 child->isoDirRecord->extent); 1868 } 1869 } 1870 1871 return used_bytes; 1872 } 1873 1874 #if 0 1875 /* Might get rid of this func */ 1876 static int 1877 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file) 1878 { 1879 to->node->inode->st.st_dev = 0; 1880 to->node->inode->st.st_ino = 0; 1881 to->node->inode->st.st_size = 0; 1882 to->node->inode->st.st_blksize = from->node->inode->st.st_blksize; 1883 to->node->inode->st.st_atime = from->node->inode->st.st_atime; 1884 to->node->inode->st.st_mtime = from->node->inode->st.st_mtime; 1885 to->node->inode->st.st_ctime = from->node->inode->st.st_ctime; 1886 to->node->inode->st.st_uid = from->node->inode->st.st_uid; 1887 to->node->inode->st.st_gid = from->node->inode->st.st_gid; 1888 to->node->inode->st.st_mode = from->node->inode->st.st_mode; 1889 /* Clear out type */ 1890 to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT); 1891 if (file) 1892 to->node->inode->st.st_mode |= S_IFREG; 1893 else 1894 to->node->inode->st.st_mode |= S_IFDIR; 1895 return 1; 1896 } 1897 #endif 1898 1899 static cd9660node * cd9660_create_virtual_entry(iso9660_disk * diskStructure,const char * name,cd9660node * parent,int file,int insert)1900 cd9660_create_virtual_entry(iso9660_disk *diskStructure, const char *name, 1901 cd9660node *parent, int file, int insert) 1902 { 1903 cd9660node *temp; 1904 fsnode * tfsnode; 1905 1906 assert(parent != NULL); 1907 1908 temp = cd9660_allocate_cd9660node(); 1909 if (temp == NULL) 1910 return NULL; 1911 1912 tfsnode = emalloc(sizeof(*tfsnode)); 1913 tfsnode->name = estrdup(name); 1914 temp->isoDirRecord = emalloc(sizeof(*temp->isoDirRecord)); 1915 1916 cd9660_convert_filename(diskStructure, tfsnode->name, 1917 temp->isoDirRecord->name, sizeof(temp->isoDirRecord->name), file); 1918 1919 temp->node = tfsnode; 1920 temp->parent = parent; 1921 1922 if (insert) { 1923 if (temp->parent != NULL) { 1924 temp->level = temp->parent->level + 1; 1925 if (!TAILQ_EMPTY(&temp->parent->cn_children)) 1926 cd9660_sorted_child_insert(temp->parent, temp); 1927 else 1928 TAILQ_INSERT_HEAD(&temp->parent->cn_children, 1929 temp, cn_next_child); 1930 } 1931 } 1932 1933 if (parent->node != NULL) { 1934 tfsnode->type = parent->node->type; 1935 } 1936 1937 /* Clear out file type bits */ 1938 tfsnode->type &= ~(S_IFMT); 1939 if (file) 1940 tfsnode->type |= S_IFREG; 1941 else 1942 tfsnode->type |= S_IFDIR; 1943 1944 /* Indicate that there is no spec entry (inode) */ 1945 tfsnode->flags &= ~(FSNODE_F_HASSPEC); 1946 #if 0 1947 cd9660_copy_stat_info(parent, temp, file); 1948 #endif 1949 return temp; 1950 } 1951 1952 static cd9660node * cd9660_create_file(iso9660_disk * diskStructure,const char * name,cd9660node * parent,cd9660node * me)1953 cd9660_create_file(iso9660_disk *diskStructure, const char *name, 1954 cd9660node *parent, cd9660node *me) 1955 { 1956 cd9660node *temp; 1957 1958 temp = cd9660_create_virtual_entry(diskStructure, name, parent, 1, 1); 1959 if (temp == NULL) 1960 return NULL; 1961 1962 temp->fileDataLength = 0; 1963 1964 temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL; 1965 1966 temp->node->inode = ecalloc(1, sizeof(*temp->node->inode)); 1967 *temp->node->inode = *me->node->inode; 1968 1969 if (cd9660_translate_node_common(diskStructure, temp) == 0) 1970 return NULL; 1971 return temp; 1972 } 1973 1974 /* 1975 * Create a new directory which does not exist on disk 1976 * @param const char * name The name to assign to the directory 1977 * @param const char * parent Pointer to the parent directory 1978 * @returns cd9660node * Pointer to the new directory 1979 */ 1980 static cd9660node * cd9660_create_directory(iso9660_disk * diskStructure,const char * name,cd9660node * parent,cd9660node * me)1981 cd9660_create_directory(iso9660_disk *diskStructure, const char *name, 1982 cd9660node *parent, cd9660node *me) 1983 { 1984 cd9660node *temp; 1985 1986 temp = cd9660_create_virtual_entry(diskStructure, name, parent, 0, 1); 1987 if (temp == NULL) 1988 return NULL; 1989 temp->node->type |= S_IFDIR; 1990 1991 temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL; 1992 1993 temp->node->inode = ecalloc(1, sizeof(*temp->node->inode)); 1994 *temp->node->inode = *me->node->inode; 1995 1996 if (cd9660_translate_node_common(diskStructure, temp) == 0) 1997 return NULL; 1998 return temp; 1999 } 2000 2001 static cd9660node * cd9660_create_special_directory(iso9660_disk * diskStructure,u_char type,cd9660node * parent)2002 cd9660_create_special_directory(iso9660_disk *diskStructure, u_char type, 2003 cd9660node *parent) 2004 { 2005 cd9660node *temp, *first; 2006 char na[2]; 2007 2008 assert(parent != NULL); 2009 2010 if (type == CD9660_TYPE_DOT) 2011 na[0] = 0; 2012 else if (type == CD9660_TYPE_DOTDOT) 2013 na[0] = 1; 2014 else 2015 return 0; 2016 2017 na[1] = 0; 2018 if ((temp = cd9660_create_virtual_entry(diskStructure, na, parent, 2019 0, 0)) == NULL) 2020 return NULL; 2021 2022 temp->parent = parent; 2023 temp->type = type; 2024 temp->isoDirRecord->length[0] = 34; 2025 /* Dot record is always first */ 2026 if (type == CD9660_TYPE_DOT) { 2027 parent->dot_record = temp; 2028 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child); 2029 /* DotDot should be second */ 2030 } else if (type == CD9660_TYPE_DOTDOT) { 2031 parent->dot_dot_record = temp; 2032 /* 2033 * If the first child is the dot record, insert 2034 * this second. Otherwise, insert it at the head. 2035 */ 2036 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL || 2037 (first->type & CD9660_TYPE_DOT) == 0) { 2038 TAILQ_INSERT_HEAD(&parent->cn_children, temp, 2039 cn_next_child); 2040 } else { 2041 TAILQ_INSERT_AFTER(&parent->cn_children, first, temp, 2042 cn_next_child); 2043 } 2044 } 2045 2046 return temp; 2047 } 2048 2049 static int cd9660_add_generic_bootimage(iso9660_disk * diskStructure,const char * bootimage)2050 cd9660_add_generic_bootimage(iso9660_disk *diskStructure, const char *bootimage) 2051 { 2052 struct stat stbuf; 2053 2054 assert(bootimage != NULL); 2055 2056 if (*bootimage == '\0') { 2057 warnx("Error: Boot image must be a filename"); 2058 return 0; 2059 } 2060 2061 diskStructure->generic_bootimage = estrdup(bootimage); 2062 2063 /* Get information about the file */ 2064 if (lstat(diskStructure->generic_bootimage, &stbuf) == -1) 2065 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__, 2066 diskStructure->generic_bootimage); 2067 2068 if (stbuf.st_size > 32768) { 2069 warnx("Error: Boot image must be no greater than 32768 bytes"); 2070 return 0; 2071 } 2072 2073 if (diskStructure->verbose_level > 0) { 2074 printf("Generic boot image has size %lld\n", 2075 (long long)stbuf.st_size); 2076 } 2077 2078 diskStructure->has_generic_bootimage = 1; 2079 2080 return 1; 2081 } 2082