1 /* $NetBSD: cd9660.c,v 1.27 2010/10/27 18:51:34 christos 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 #include <sys/cdefs.h> 99 __FBSDID("$FreeBSD$"); 100 101 #include <string.h> 102 #include <ctype.h> 103 #include <sys/param.h> 104 #include <sys/queue.h> 105 106 #include "makefs.h" 107 #include "cd9660.h" 108 #include "cd9660/iso9660_rrip.h" 109 #include "cd9660/cd9660_archimedes.h" 110 111 /* 112 * Global variables 113 */ 114 iso9660_disk diskStructure; 115 116 static void cd9660_finalize_PVD(void); 117 static cd9660node *cd9660_allocate_cd9660node(void); 118 static void cd9660_set_defaults(void); 119 static int cd9660_arguments_set_string(const char *, const char *, int, 120 char, char *); 121 static void cd9660_populate_iso_dir_record( 122 struct _iso_directory_record_cd9660 *, u_char, u_char, u_char, 123 const char *); 124 static void cd9660_setup_root_node(void); 125 static int cd9660_setup_volume_descriptors(void); 126 #if 0 127 static int cd9660_fill_extended_attribute_record(cd9660node *); 128 #endif 129 static void cd9660_sort_nodes(cd9660node *); 130 static int cd9960_translate_node_common(cd9660node *); 131 static int cd9660_translate_node(fsnode *, cd9660node *); 132 static int cd9660_compare_filename(const char *, const char *); 133 static void cd9660_sorted_child_insert(cd9660node *, cd9660node *); 134 static int cd9660_handle_collisions(cd9660node *, int); 135 static cd9660node *cd9660_rename_filename(cd9660node *, int, int); 136 static void cd9660_copy_filenames(cd9660node *); 137 static void cd9660_sorting_nodes(cd9660node *); 138 static int cd9660_count_collisions(cd9660node *); 139 static cd9660node *cd9660_rrip_move_directory(cd9660node *); 140 static int cd9660_add_dot_records(cd9660node *); 141 142 static void cd9660_convert_structure(fsnode *, cd9660node *, int, 143 int *, int *); 144 static void cd9660_free_structure(cd9660node *); 145 static int cd9660_generate_path_table(void); 146 static int cd9660_level1_convert_filename(const char *, char *, int); 147 static int cd9660_level2_convert_filename(const char *, char *, int); 148 #if 0 149 static int cd9660_joliet_convert_filename(const char *, char *, int); 150 #endif 151 static int cd9660_convert_filename(const char *, char *, int); 152 static void cd9660_populate_dot_records(cd9660node *); 153 static int64_t cd9660_compute_offsets(cd9660node *, int64_t); 154 #if 0 155 static int cd9660_copy_stat_info(cd9660node *, cd9660node *, int); 156 #endif 157 static cd9660node *cd9660_create_virtual_entry(const char *, cd9660node *, int, 158 int); 159 static cd9660node *cd9660_create_file(const char *, cd9660node *, cd9660node *); 160 static cd9660node *cd9660_create_directory(const char *, cd9660node *, 161 cd9660node *); 162 static cd9660node *cd9660_create_special_directory(u_char, cd9660node *); 163 164 165 /* 166 * Allocate and initalize a cd9660node 167 * @returns struct cd9660node * Pointer to new node, or NULL on error 168 */ 169 static cd9660node * 170 cd9660_allocate_cd9660node(void) 171 { 172 cd9660node *temp; 173 174 if ((temp = calloc(1, sizeof(cd9660node))) == NULL) 175 err(EXIT_FAILURE, "%s: calloc", __func__); 176 TAILQ_INIT(&temp->cn_children); 177 temp->parent = temp->dot_record = temp->dot_dot_record = NULL; 178 temp->ptnext = temp->ptprev = temp->ptlast = NULL; 179 temp->node = NULL; 180 temp->isoDirRecord = NULL; 181 temp->isoExtAttributes = NULL; 182 temp->rr_real_parent = temp->rr_relocated = NULL; 183 temp->su_tail_data = NULL; 184 return temp; 185 } 186 187 int cd9660_defaults_set = 0; 188 189 /** 190 * Set default values for cd9660 extension to makefs 191 */ 192 static void 193 cd9660_set_defaults(void) 194 { 195 /*Fix the sector size for now, though the spec allows for other sizes*/ 196 diskStructure.sectorSize = 2048; 197 198 /* Set up defaults in our own structure */ 199 diskStructure.verbose_level = 0; 200 diskStructure.keep_bad_images = 0; 201 diskStructure.follow_sym_links = 0; 202 diskStructure.isoLevel = 2; 203 204 diskStructure.rock_ridge_enabled = 0; 205 diskStructure.rock_ridge_renamed_dir_name = 0; 206 diskStructure.rock_ridge_move_count = 0; 207 diskStructure.rr_moved_dir = 0; 208 209 diskStructure.archimedes_enabled = 0; 210 211 diskStructure.include_padding_areas = 1; 212 213 /* Spec breaking functionality */ 214 diskStructure.allow_deep_trees = 215 diskStructure.allow_start_dot = 216 diskStructure.allow_max_name = 217 diskStructure.allow_illegal_chars = 218 diskStructure.allow_lowercase = 219 diskStructure.allow_multidot = 220 diskStructure.omit_trailing_period = 0; 221 222 /* Make sure the PVD is clear */ 223 memset(&diskStructure.primaryDescriptor, 0, 2048); 224 225 memset(diskStructure.primaryDescriptor.volume_set_id, 0x20,32); 226 memset(diskStructure.primaryDescriptor.publisher_id, 0x20,128); 227 memset(diskStructure.primaryDescriptor.preparer_id, 0x20,128); 228 memset(diskStructure.primaryDescriptor.application_id, 0x20,128); 229 memset(diskStructure.primaryDescriptor.copyright_file_id, 0x20,128); 230 memset(diskStructure.primaryDescriptor.abstract_file_id, 0x20,128); 231 memset(diskStructure.primaryDescriptor.bibliographic_file_id, 0x20,128); 232 233 strcpy(diskStructure.primaryDescriptor.system_id,"NetBSD"); 234 235 cd9660_defaults_set = 1; 236 237 /* Boot support: Initially disabled */ 238 diskStructure.has_generic_bootimage = 0; 239 diskStructure.generic_bootimage = NULL; 240 241 diskStructure.boot_image_directory = 0; 242 /*memset(diskStructure.boot_descriptor, 0, 2048);*/ 243 244 diskStructure.is_bootable = 0; 245 TAILQ_INIT(&diskStructure.boot_images); 246 LIST_INIT(&diskStructure.boot_entries); 247 } 248 249 void 250 cd9660_prep_opts(fsinfo_t *fsopts __unused) 251 { 252 cd9660_set_defaults(); 253 } 254 255 void 256 cd9660_cleanup_opts(fsinfo_t *fsopts __unused) 257 { 258 259 } 260 261 static int 262 cd9660_arguments_set_string(const char *val, const char *fieldtitle, int length, 263 char testmode, char * dest) 264 { 265 int len, test; 266 267 if (val == NULL) 268 warnx("error: The %s requires a string argument", fieldtitle); 269 else if ((len = strlen(val)) <= length) { 270 if (testmode == 'd') 271 test = cd9660_valid_d_chars(val); 272 else 273 test = cd9660_valid_a_chars(val); 274 if (test) { 275 memcpy(dest, val, len); 276 if (test == 2) 277 cd9660_uppercase_characters(dest, len); 278 return 1; 279 } else 280 warnx("error: The %s must be composed of " 281 "%c-characters", fieldtitle, testmode); 282 } else 283 warnx("error: The %s must be at most 32 characters long", 284 fieldtitle); 285 return 0; 286 } 287 288 /* 289 * Command-line parsing function 290 */ 291 292 int 293 cd9660_parse_opts(const char *option, fsinfo_t *fsopts) 294 { 295 char *var, *val; 296 int rv; 297 /* Set up allowed options - integer options ONLY */ 298 option_t cd9660_options[] = { 299 { "l", &diskStructure.isoLevel, 1, 3, "ISO Level" }, 300 { "isolevel", &diskStructure.isoLevel, 1, 3, "ISO Level" }, 301 { "verbose", &diskStructure.verbose_level, 0, 2, 302 "Turns on verbose output" }, 303 { "v", &diskStructure.verbose_level, 0 , 2, 304 "Turns on verbose output"}, 305 { .name = NULL } 306 }; 307 308 if (cd9660_defaults_set == 0) 309 cd9660_set_defaults(); 310 311 /* 312 * Todo : finish implementing this, and make a function that 313 * parses them 314 */ 315 /* 316 string_option_t cd9660_string_options[] = { 317 { "L", "Label", &diskStructure.primaryDescriptor.volume_id, 1, 32, "Disk Label", ISO_STRING_FILTER_DCHARS }, 318 { NULL } 319 } 320 */ 321 322 assert(option != NULL); 323 324 if (debug & DEBUG_FS_PARSE_OPTS) 325 printf("cd9660_parse_opts: got `%s'\n", option); 326 327 if ((var = strdup(option)) == NULL) 328 err(1, "allocating memory for copy of option string"); 329 rv = 1; 330 331 val = strchr(var, '='); 332 if (val != NULL) 333 *val++ = '\0'; 334 335 /* First handle options with no parameters */ 336 if (strcmp(var, "h") == 0) { 337 diskStructure.displayHelp = 1; 338 rv = 1; 339 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "S", "follow-symlinks")) { 340 /* this is not handled yet */ 341 diskStructure.follow_sym_links = 1; 342 rv = 1; 343 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "L", "label")) { 344 rv = cd9660_arguments_set_string(val, "Disk Label", 32, 'd', 345 diskStructure.primaryDescriptor.volume_id); 346 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "A", "applicationid")) { 347 rv = cd9660_arguments_set_string(val, "Application Identifier", 128, 'a', 348 diskStructure.primaryDescriptor.application_id); 349 } else if(CD9660_IS_COMMAND_ARG_DUAL(var, "P", "publisher")) { 350 rv = cd9660_arguments_set_string(val, "Publisher Identifier", 351 128, 'a', diskStructure.primaryDescriptor.publisher_id); 352 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "p", "preparer")) { 353 rv = cd9660_arguments_set_string(val, "Preparer Identifier", 354 128, 'a', diskStructure.primaryDescriptor.preparer_id); 355 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "V", "volumeid")) { 356 rv = cd9660_arguments_set_string(val, "Volume Set Identifier", 357 128, 'a', diskStructure.primaryDescriptor.volume_set_id); 358 /* Boot options */ 359 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "B", "bootimage")) { 360 if (val == NULL) 361 warnx("error: The Boot Image parameter requires a valid boot information string"); 362 else 363 rv = cd9660_add_boot_disk(val); 364 } else if (CD9660_IS_COMMAND_ARG(var, "bootimagedir")) { 365 /* 366 * XXXfvdl this is unused. 367 */ 368 if (val == NULL) 369 errx(1, "error: The Boot Image Directory parameter" 370 " requires a directory name\n"); 371 else { 372 if ((diskStructure.boot_image_directory = 373 malloc(strlen(val) + 1)) == NULL) { 374 CD9660_MEM_ALLOC_ERROR("cd9660_parse_opts"); 375 exit(1); 376 } 377 378 /* BIG TODO: Add the max length function here */ 379 cd9660_arguments_set_string(val, "Boot Image Directory", 380 12 , 'd', diskStructure.boot_image_directory); 381 } 382 } else if (CD9660_IS_COMMAND_ARG_DUAL(var, "G", "generic-bootimage")) { 383 if (val == NULL) 384 warnx("error: The Boot Image parameter requires a valid boot information string"); 385 else 386 rv = cd9660_add_generic_bootimage(val); 387 } else if (CD9660_IS_COMMAND_ARG(var, "no-trailing-padding")) 388 diskStructure.include_padding_areas = 0; 389 /* RRIP */ 390 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "R", "rockridge")) 391 diskStructure.rock_ridge_enabled = 1; 392 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "A", "archimedes")) 393 diskStructure.archimedes_enabled = 1; 394 else if (CD9660_IS_COMMAND_ARG_DUAL(var, "K", "keep-bad-images")) 395 diskStructure.keep_bad_images = 1; 396 else if (CD9660_IS_COMMAND_ARG(var, "allow-deep-trees")) 397 diskStructure.allow_deep_trees = 1; 398 else if (CD9660_IS_COMMAND_ARG(var, "allow-max-name")) 399 diskStructure.allow_max_name = 1; 400 else if (CD9660_IS_COMMAND_ARG(var, "allow-illegal-chars")) 401 diskStructure.allow_illegal_chars = 1; 402 else if (CD9660_IS_COMMAND_ARG(var, "allow-lowercase")) 403 diskStructure.allow_lowercase = 1; 404 else if (CD9660_IS_COMMAND_ARG(var,"allow-multidot")) 405 diskStructure.allow_multidot = 1; 406 else if (CD9660_IS_COMMAND_ARG(var, "omit-trailing-period")) 407 diskStructure.omit_trailing_period = 1; 408 else if (CD9660_IS_COMMAND_ARG(var, "no-emul-boot") || 409 CD9660_IS_COMMAND_ARG(var, "no-boot") || 410 CD9660_IS_COMMAND_ARG(var, "hard-disk-boot")) { 411 cd9660_eltorito_add_boot_option(var, 0); 412 413 /* End of flag variables */ 414 } else if (CD9660_IS_COMMAND_ARG(var, "boot-load-segment")) { 415 if (val == NULL) { 416 warnx("Option `%s' doesn't contain a value", var); 417 rv = 0; 418 } else { 419 cd9660_eltorito_add_boot_option(var, val); 420 } 421 } else { 422 if (val == NULL) { 423 warnx("Option `%s' doesn't contain a value", var); 424 rv = 0; 425 } else 426 rv = set_option(cd9660_options, var, val); 427 } 428 429 if (var) 430 free(var); 431 return (rv); 432 } 433 434 /* 435 * Main function for cd9660_makefs 436 * Builds the ISO image file 437 * @param const char *image The image filename to create 438 * @param const char *dir The directory that is being read 439 * @param struct fsnode *root The root node of the filesystem tree 440 * @param struct fsinfo_t *fsopts Any options 441 */ 442 void 443 cd9660_makefs(const char *image, const char *dir, fsnode *root, 444 fsinfo_t *fsopts) 445 { 446 int64_t startoffset; 447 int numDirectories; 448 uint64_t pathTableSectors; 449 int64_t firstAvailableSector; 450 int64_t totalSpace; 451 int error; 452 cd9660node *real_root; 453 454 if (diskStructure.verbose_level > 0) 455 printf("cd9660_makefs: ISO level is %i\n", 456 diskStructure.isoLevel); 457 if (diskStructure.isoLevel < 2 && 458 diskStructure.allow_multidot) 459 errx(1, "allow-multidot requires iso level of 2\n"); 460 461 assert(image != NULL); 462 assert(dir != NULL); 463 assert(root != NULL); 464 465 if (diskStructure.displayHelp) { 466 /* 467 * Display help here - probably want to put it in 468 * a separate function 469 */ 470 return; 471 } 472 473 diskStructure.rootFilesystemPath = dir; 474 475 if (diskStructure.verbose_level > 0) 476 printf("cd9660_makefs: image %s directory %s root %p\n", 477 image, dir, root); 478 479 /* Set up some constants. Later, these will be defined with options */ 480 481 /* Counter needed for path tables */ 482 numDirectories = 0; 483 484 /* Convert tree to our own format */ 485 /* Actually, we now need to add the REAL root node, at level 0 */ 486 487 real_root = cd9660_allocate_cd9660node(); 488 if ((real_root->isoDirRecord = 489 malloc( sizeof(iso_directory_record_cd9660) )) == NULL) { 490 CD9660_MEM_ALLOC_ERROR("cd9660_makefs"); 491 exit(1); 492 } 493 494 /* Leave filename blank for root */ 495 memset(real_root->isoDirRecord->name, 0, 496 ISO_FILENAME_MAXLENGTH_WITH_PADDING); 497 498 real_root->level = 0; 499 diskStructure.rootNode = real_root; 500 real_root->type = CD9660_TYPE_DIR; 501 error = 0; 502 real_root->node = root; 503 cd9660_convert_structure(root, real_root, 1, &numDirectories, &error); 504 505 if (TAILQ_EMPTY(&real_root->cn_children)) { 506 errx(1, "cd9660_makefs: converted directory is empty. " 507 "Tree conversion failed\n"); 508 } else if (error != 0) { 509 errx(1, "cd9660_makefs: tree conversion failed\n"); 510 } else { 511 if (diskStructure.verbose_level > 0) 512 printf("cd9660_makefs: tree converted\n"); 513 } 514 515 /* Add the dot and dot dot records */ 516 cd9660_add_dot_records(real_root); 517 518 cd9660_setup_root_node(); 519 520 if (diskStructure.verbose_level > 0) 521 printf("cd9660_makefs: done converting tree\n"); 522 523 /* non-SUSP extensions */ 524 if (diskStructure.archimedes_enabled) 525 archimedes_convert_tree(diskStructure.rootNode); 526 527 /* Rock ridge / SUSP init pass */ 528 if (diskStructure.rock_ridge_enabled) { 529 cd9660_susp_initialize(diskStructure.rootNode, 530 diskStructure.rootNode, NULL); 531 } 532 533 /* Build path table structure */ 534 diskStructure.pathTableLength = cd9660_generate_path_table(); 535 536 pathTableSectors = CD9660_BLOCKS(diskStructure.sectorSize, 537 diskStructure.pathTableLength); 538 539 firstAvailableSector = cd9660_setup_volume_descriptors(); 540 if (diskStructure.is_bootable) { 541 firstAvailableSector = cd9660_setup_boot(firstAvailableSector); 542 if (firstAvailableSector < 0) 543 errx(1, "setup_boot failed"); 544 } 545 /* LE first, then BE */ 546 diskStructure.primaryLittleEndianTableSector = firstAvailableSector; 547 diskStructure.primaryBigEndianTableSector = 548 diskStructure.primaryLittleEndianTableSector + pathTableSectors; 549 550 /* Set the secondary ones to -1, not going to use them for now */ 551 diskStructure.secondaryBigEndianTableSector = -1; 552 diskStructure.secondaryLittleEndianTableSector = -1; 553 554 diskStructure.dataFirstSector = 555 diskStructure.primaryBigEndianTableSector + pathTableSectors; 556 if (diskStructure.verbose_level > 0) 557 printf("cd9660_makefs: Path table conversion complete. " 558 "Each table is %i bytes, or %" PRIu64 " sectors.\n", 559 diskStructure.pathTableLength, pathTableSectors); 560 561 startoffset = diskStructure.sectorSize*diskStructure.dataFirstSector; 562 563 totalSpace = cd9660_compute_offsets(real_root, startoffset); 564 565 diskStructure.totalSectors = diskStructure.dataFirstSector + 566 CD9660_BLOCKS(diskStructure.sectorSize, totalSpace); 567 568 /* Disabled until pass 1 is done */ 569 if (diskStructure.rock_ridge_enabled) { 570 diskStructure.susp_continuation_area_start_sector = 571 diskStructure.totalSectors; 572 diskStructure.totalSectors += 573 CD9660_BLOCKS(diskStructure.sectorSize, 574 diskStructure.susp_continuation_area_size); 575 cd9660_susp_finalize(diskStructure.rootNode); 576 } 577 578 579 cd9660_finalize_PVD(); 580 581 /* Add padding sectors, just for testing purposes right now */ 582 /* diskStructure.totalSectors+=150; */ 583 584 /* Debugging output */ 585 if (diskStructure.verbose_level > 0) { 586 printf("cd9660_makefs: Sectors 0-15 reserved\n"); 587 printf("cd9660_makefs: Primary path tables starts in sector %" 588 PRId64 "\n", diskStructure.primaryLittleEndianTableSector); 589 printf("cd9660_makefs: File data starts in sector %" 590 PRId64 "\n", diskStructure.dataFirstSector); 591 printf("cd9660_makefs: Total sectors: %" 592 PRId64 "\n", diskStructure.totalSectors); 593 } 594 595 /* 596 * Add padding sectors at the end 597 * TODO: Clean this up and separate padding 598 */ 599 if (diskStructure.include_padding_areas) 600 diskStructure.totalSectors += 150; 601 602 cd9660_write_image(image); 603 604 if (diskStructure.verbose_level > 1) { 605 debug_print_volume_descriptor_information(); 606 debug_print_tree(real_root,0); 607 debug_print_path_tree(real_root); 608 } 609 610 /* Clean up data structures */ 611 cd9660_free_structure(real_root); 612 613 if (diskStructure.verbose_level > 0) 614 printf("cd9660_makefs: done\n"); 615 } 616 617 /* Generic function pointer - implement later */ 618 typedef int (*cd9660node_func)(cd9660node *); 619 620 static void 621 cd9660_finalize_PVD(void) 622 { 623 time_t tim; 624 unsigned char *temp; 625 626 /* Copy the root directory record */ 627 temp = (unsigned char *) &diskStructure.primaryDescriptor; 628 629 /* root should be a fixed size of 34 bytes since it has no name */ 630 memcpy(diskStructure.primaryDescriptor.root_directory_record, 631 diskStructure.rootNode->dot_record->isoDirRecord, 34); 632 633 /* In RRIP, this might be longer than 34 */ 634 diskStructure.primaryDescriptor.root_directory_record[0] = 34; 635 636 /* Set up all the important numbers in the PVD */ 637 cd9660_bothendian_dword(diskStructure.totalSectors, 638 (unsigned char *)diskStructure.primaryDescriptor.volume_space_size); 639 cd9660_bothendian_word(1, 640 (unsigned char *)diskStructure.primaryDescriptor.volume_set_size); 641 cd9660_bothendian_word(1, 642 (unsigned char *) 643 diskStructure.primaryDescriptor.volume_sequence_number); 644 cd9660_bothendian_word(diskStructure.sectorSize, 645 (unsigned char *) 646 diskStructure.primaryDescriptor.logical_block_size); 647 cd9660_bothendian_dword(diskStructure.pathTableLength, 648 (unsigned char *)diskStructure.primaryDescriptor.path_table_size); 649 650 cd9660_731(diskStructure.primaryLittleEndianTableSector, 651 (u_char *)diskStructure.primaryDescriptor.type_l_path_table); 652 cd9660_732(diskStructure.primaryBigEndianTableSector, 653 (u_char *)diskStructure.primaryDescriptor.type_m_path_table); 654 655 diskStructure.primaryDescriptor.file_structure_version[0] = 1; 656 657 /* Pad all strings with spaces instead of nulls */ 658 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_id, 32); 659 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.system_id, 32); 660 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.volume_set_id, 661 128); 662 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.publisher_id, 663 128); 664 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.preparer_id, 665 128); 666 cd9660_pad_string_spaces(diskStructure.primaryDescriptor.application_id, 667 128); 668 cd9660_pad_string_spaces( 669 diskStructure.primaryDescriptor.copyright_file_id, 128); 670 cd9660_pad_string_spaces( 671 diskStructure.primaryDescriptor.abstract_file_id, 128); 672 cd9660_pad_string_spaces( 673 diskStructure.primaryDescriptor.bibliographic_file_id, 128); 674 675 /* Setup dates */ 676 time(&tim); 677 cd9660_time_8426( 678 (unsigned char *)diskStructure.primaryDescriptor.creation_date, 679 tim); 680 cd9660_time_8426( 681 (unsigned char *)diskStructure.primaryDescriptor.modification_date, 682 tim); 683 684 /* 685 cd9660_set_date(diskStructure.primaryDescriptor.expiration_date, now); 686 */ 687 688 memset(diskStructure.primaryDescriptor.expiration_date, '0' ,17); 689 cd9660_time_8426( 690 (unsigned char *)diskStructure.primaryDescriptor.effective_date, 691 tim); 692 } 693 694 static void 695 cd9660_populate_iso_dir_record(struct _iso_directory_record_cd9660 *record, 696 u_char ext_attr_length, u_char flags, 697 u_char name_len, const char * name) 698 { 699 record->ext_attr_length[0] = ext_attr_length; 700 record->flags[0] = ISO_FLAG_CLEAR | flags; 701 record->file_unit_size[0] = 0; 702 record->interleave[0] = 0; 703 cd9660_bothendian_word(1, record->volume_sequence_number); 704 record->name_len[0] = name_len; 705 memset(record->name, '\0', sizeof (record->name)); 706 memcpy(record->name, name, name_len); 707 record->length[0] = 33 + name_len; 708 709 /* Todo : better rounding */ 710 record->length[0] += (record->length[0] & 1) ? 1 : 0; 711 } 712 713 static void 714 cd9660_setup_root_node(void) 715 { 716 cd9660_populate_iso_dir_record(diskStructure.rootNode->isoDirRecord, 717 0, ISO_FLAG_DIRECTORY, 1, "\0"); 718 719 } 720 721 /*********** SUPPORT FUNCTIONS ***********/ 722 static int 723 cd9660_setup_volume_descriptors(void) 724 { 725 /* Boot volume descriptor should come second */ 726 int sector = 16; 727 /* For now, a fixed 2 : PVD and terminator */ 728 volume_descriptor *temp, *t; 729 730 /* Set up the PVD */ 731 if ((temp = malloc(sizeof(volume_descriptor))) == NULL) { 732 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors"); 733 exit(1); 734 } 735 736 temp->volumeDescriptorData = 737 (unsigned char *)&diskStructure.primaryDescriptor; 738 temp->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_PVD; 739 temp->volumeDescriptorData[6] = 1; 740 temp->sector = sector; 741 memcpy(temp->volumeDescriptorData + 1, 742 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 743 diskStructure.firstVolumeDescriptor = temp; 744 745 sector++; 746 /* Set up boot support if enabled. BVD must reside in sector 17 */ 747 if (diskStructure.is_bootable) { 748 if ((t = malloc(sizeof(volume_descriptor))) == NULL) { 749 CD9660_MEM_ALLOC_ERROR( 750 "cd9660_setup_volume_descriptors"); 751 exit(1); 752 } 753 if ((t->volumeDescriptorData = malloc(2048)) == NULL) { 754 CD9660_MEM_ALLOC_ERROR( 755 "cd9660_setup_volume_descriptors"); 756 exit(1); 757 } 758 temp->next = t; 759 temp = t; 760 memset(t->volumeDescriptorData, 0, 2048); 761 t->sector = 17; 762 if (diskStructure.verbose_level > 0) 763 printf("Setting up boot volume descriptor\n"); 764 cd9660_setup_boot_volume_descriptor(t); 765 sector++; 766 } 767 768 /* Set up the terminator */ 769 if ((t = malloc(sizeof(volume_descriptor))) == NULL) { 770 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors"); 771 exit(1); 772 } 773 if ((t->volumeDescriptorData = malloc(2048)) == NULL) { 774 CD9660_MEM_ALLOC_ERROR("cd9660_setup_volume_descriptors"); 775 exit(1); 776 } 777 778 temp->next = t; 779 memset(t->volumeDescriptorData, 0, 2048); 780 t->volumeDescriptorData[0] = ISO_VOLUME_DESCRIPTOR_TERMINATOR; 781 t->next = 0; 782 t->volumeDescriptorData[6] = 1; 783 t->sector = sector; 784 memcpy(t->volumeDescriptorData + 1, 785 ISO_VOLUME_DESCRIPTOR_STANDARD_ID, 5); 786 787 sector++; 788 return sector; 789 } 790 791 #if 0 792 /* 793 * Populate EAR at some point. Not required, but is used by NetBSD's 794 * cd9660 support 795 */ 796 static int 797 cd9660_fill_extended_attribute_record(cd9660node *node) 798 { 799 if ((node->isoExtAttributes = 800 malloc(sizeof(struct iso_extended_attributes))) == NULL) { 801 CD9660_MEM_ALLOC_ERROR("cd9660_fill_extended_attribute_record"); 802 exit(1); 803 }; 804 805 return 1; 806 } 807 #endif 808 809 static int 810 cd9960_translate_node_common(cd9660node *newnode) 811 { 812 time_t tim; 813 int test; 814 u_char flag; 815 char temp[ISO_FILENAME_MAXLENGTH_WITH_PADDING]; 816 817 /* Now populate the isoDirRecord structure */ 818 memset(temp, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING); 819 820 test = cd9660_convert_filename(newnode->node->name, 821 temp, !(S_ISDIR(newnode->node->type))); 822 823 flag = ISO_FLAG_CLEAR; 824 if (S_ISDIR(newnode->node->type)) 825 flag |= ISO_FLAG_DIRECTORY; 826 827 cd9660_populate_iso_dir_record(newnode->isoDirRecord, 0, 828 flag, strlen(temp), temp); 829 830 /* Set the various dates */ 831 832 /* If we want to use the current date and time */ 833 time(&tim); 834 835 cd9660_time_915(newnode->isoDirRecord->date, tim); 836 837 cd9660_bothendian_dword(newnode->fileDataLength, 838 newnode->isoDirRecord->size); 839 /* If the file is a link, we want to set the size to 0 */ 840 if (S_ISLNK(newnode->node->type)) 841 newnode->fileDataLength = 0; 842 843 return 1; 844 } 845 846 /* 847 * Translate fsnode to cd9960node 848 * Translate filenames and other metadata, including dates, sizes, 849 * permissions, etc 850 * @param struct fsnode * The node generated by makefs 851 * @param struct cd9660node * The intermediate node to be written to 852 * @returns int 0 on failure, 1 on success 853 */ 854 static int 855 cd9660_translate_node(fsnode *node, cd9660node *newnode) 856 { 857 if (node == NULL) { 858 if (diskStructure.verbose_level > 0) 859 printf("cd9660_translate_node: NULL node passed, " 860 "returning\n"); 861 return 0; 862 } 863 if ((newnode->isoDirRecord = 864 malloc(sizeof(iso_directory_record_cd9660))) == NULL) { 865 CD9660_MEM_ALLOC_ERROR("cd9660_translate_node"); 866 return 0; 867 } 868 869 /* Set the node pointer */ 870 newnode->node = node; 871 872 /* Set the size */ 873 if (!(S_ISDIR(node->type))) 874 newnode->fileDataLength = node->inode->st.st_size; 875 876 if (cd9960_translate_node_common(newnode) == 0) 877 return 0; 878 879 /* Finally, overwrite some of the values that are set by default */ 880 cd9660_time_915(newnode->isoDirRecord->date, node->inode->st.st_mtime); 881 882 return 1; 883 } 884 885 /* 886 * Compares two ISO filenames 887 * @param const char * The first file name 888 * @param const char * The second file name 889 * @returns : -1 if first is less than second, 0 if they are the same, 1 if 890 * the second is greater than the first 891 */ 892 static int 893 cd9660_compare_filename(const char *first, const char *second) 894 { 895 /* 896 * This can be made more optimal once it has been tested 897 * (the extra character, for example, is for testing) 898 */ 899 900 int p1 = 0; 901 int p2 = 0; 902 char c1, c2; 903 /* First, on the filename */ 904 905 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 } 928 929 if (first[p1] == '.' && second[p2] == '.') { 930 p1++; 931 p2++; 932 while (p1 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1 933 && p2 < ISO_FILENAME_MAXLENGTH_BEFORE_VERSION - 1) { 934 c1 = first[p1]; 935 c2 = second[p2]; 936 if (c1 == ';' && c2 == ';') 937 break; 938 else if (c1 == ';') { 939 p2++; 940 c1 = ' '; 941 } else if (c2 == ';') { 942 p1++; 943 c2 = ' '; 944 } else { 945 p1++; 946 p2++; 947 } 948 949 if (c1 < c2) 950 return -1; 951 else if (c1 > c2) 952 return 1; 953 } 954 } 955 return 0; 956 } 957 958 /* 959 * Insert a node into list with ISO sorting rules 960 * @param cd9660node * The head node of the list 961 * @param cd9660node * The node to be inserted 962 */ 963 static void 964 cd9660_sorted_child_insert(cd9660node *parent, cd9660node *cn_new) 965 { 966 int compare; 967 cd9660node *cn; 968 struct cd9660_children_head *head = &parent->cn_children; 969 970 /* TODO: Optimize? */ 971 cn_new->parent = parent; 972 973 /* 974 * first will either be 0, the . or the .. 975 * if . or .., this means no other entry may be written before first 976 * if 0, the new node may be inserted at the head 977 */ 978 979 TAILQ_FOREACH(cn, head, cn_next_child) { 980 /* 981 * Dont insert a node twice - 982 * that would cause an infinite loop 983 */ 984 if (cn_new == cn) 985 return; 986 987 compare = cd9660_compare_filename(cn_new->isoDirRecord->name, 988 cn->isoDirRecord->name); 989 990 if (compare == 0) 991 compare = cd9660_compare_filename(cn_new->node->name, 992 cn->node->name); 993 994 if (compare < 0) 995 break; 996 } 997 if (cn == NULL) 998 TAILQ_INSERT_TAIL(head, cn_new, cn_next_child); 999 else 1000 TAILQ_INSERT_BEFORE(cn, cn_new, cn_next_child); 1001 } 1002 1003 /* 1004 * Called After cd9660_sorted_child_insert 1005 * handles file collisions by suffixing each filname with ~n 1006 * where n represents the files respective place in the ordering 1007 */ 1008 static int 1009 cd9660_handle_collisions(cd9660node *colliding, int past) 1010 { 1011 cd9660node *iter, *next, *prev; 1012 int skip; 1013 int delete_chars = 0; 1014 int temp_past = past; 1015 int temp_skip; 1016 int flag = 0; 1017 cd9660node *end_of_range; 1018 1019 for (iter = TAILQ_FIRST(&colliding->cn_children); 1020 iter != NULL && (next = TAILQ_NEXT(iter, cn_next_child)) != NULL;) { 1021 if (strcmp(iter->isoDirRecord->name, 1022 next->isoDirRecord->name) != 0) { 1023 iter = TAILQ_NEXT(iter, cn_next_child); 1024 continue; 1025 } 1026 flag = 1; 1027 temp_skip = skip = cd9660_count_collisions(iter); 1028 end_of_range = iter; 1029 while (temp_skip > 0) { 1030 temp_skip--; 1031 end_of_range = TAILQ_NEXT(end_of_range, cn_next_child); 1032 } 1033 temp_past = past; 1034 while (temp_past > 0) { 1035 if ((next = TAILQ_NEXT(end_of_range, cn_next_child)) != NULL) 1036 end_of_range = next; 1037 else if ((prev = TAILQ_PREV(iter, cd9660_children_head, cn_next_child)) != NULL) 1038 iter = prev; 1039 else 1040 delete_chars++; 1041 temp_past--; 1042 } 1043 skip += past; 1044 iter = cd9660_rename_filename(iter, skip, delete_chars); 1045 } 1046 return flag; 1047 } 1048 1049 1050 static cd9660node * 1051 cd9660_rename_filename(cd9660node *iter, int num, int delete_chars) 1052 { 1053 int i = 0; 1054 int numbts, dot, semi, digit, digits, temp, powers, multiplier, count; 1055 char *naming; 1056 int maxlength; 1057 char *tmp; 1058 1059 if (diskStructure.verbose_level > 0) 1060 printf("Rename_filename called\n"); 1061 1062 /* TODO : A LOT of chanes regarding 8.3 filenames */ 1063 if (diskStructure.isoLevel == 1) 1064 maxlength = 8; 1065 else if (diskStructure.isoLevel == 2) 1066 maxlength = 31; 1067 else 1068 maxlength = ISO_FILENAME_MAXLENGTH_BEFORE_VERSION; 1069 1070 tmp = malloc(ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1071 1072 while (i < num) { 1073 powers = 1; 1074 count = 0; 1075 digits = 1; 1076 multiplier = 1; 1077 while (((int)(i / powers) ) >= 10) { 1078 digits++; 1079 powers = powers * 10; 1080 } 1081 1082 naming = iter->o_name; 1083 1084 /* 1085 while ((*naming != '.') && (*naming != ';')) { 1086 naming++; 1087 count++; 1088 } 1089 */ 1090 1091 dot = -1; 1092 semi = -1; 1093 while (count < maxlength) { 1094 if (*naming == '.') 1095 dot = count; 1096 else if (*naming == ';') { 1097 semi = count; 1098 break; 1099 } 1100 naming++; 1101 count++; 1102 } 1103 1104 if ((count + digits) < maxlength) 1105 numbts = count; 1106 else 1107 numbts = maxlength - (digits); 1108 numbts -= delete_chars; 1109 1110 /* 8.3 rules - keep the extension, add before the dot */ 1111 1112 /* 1113 * This code makes a bunch of assumptions. 1114 * See if you can spot them all :) 1115 */ 1116 1117 /* 1118 if (diskStructure.isoLevel == 1) { 1119 numbts = 8 - digits - delete_chars; 1120 if (dot < 0) { 1121 1122 } else { 1123 if (dot < 8) { 1124 memmove(&tmp[numbts],&tmp[dot],4); 1125 } 1126 } 1127 } 1128 */ 1129 1130 /* (copying just the filename before the '.' */ 1131 memcpy(tmp, (iter->o_name), numbts); 1132 1133 /* adding the appropriate number following the name */ 1134 temp = i; 1135 while (digits > 0) { 1136 digit = (int)(temp / powers); 1137 temp = temp - digit * powers; 1138 sprintf(&tmp[numbts] , "%d", digit); 1139 digits--; 1140 numbts++; 1141 powers = powers / 10; 1142 } 1143 1144 while ((*naming != ';') && (numbts < maxlength)) { 1145 tmp[numbts] = (*naming); 1146 naming++; 1147 numbts++; 1148 } 1149 1150 tmp[numbts] = ';'; 1151 tmp[numbts+1] = '1'; 1152 tmp[numbts+2] = '\0'; 1153 1154 /* 1155 * now tmp has exactly the identifier 1156 * we want so we'll copy it back to record 1157 */ 1158 memcpy((iter->isoDirRecord->name), tmp, numbts + 3); 1159 1160 iter = TAILQ_NEXT(iter, cn_next_child); 1161 i++; 1162 } 1163 1164 free(tmp); 1165 return iter; 1166 } 1167 1168 /* Todo: Figure out why these functions are nec. */ 1169 static void 1170 cd9660_copy_filenames(cd9660node *node) 1171 { 1172 cd9660node *cn; 1173 1174 if (TAILQ_EMPTY(&node->cn_children)) 1175 return; 1176 1177 if (TAILQ_FIRST(&node->cn_children)->isoDirRecord == NULL) { 1178 debug_print_tree(diskStructure.rootNode, 0); 1179 exit(1); 1180 } 1181 1182 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1183 cd9660_copy_filenames(cn); 1184 memcpy(cn->o_name, cn->isoDirRecord->name, 1185 ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1186 } 1187 } 1188 1189 static void 1190 cd9660_sorting_nodes(cd9660node *node) 1191 { 1192 cd9660node *cn; 1193 1194 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) 1195 cd9660_sorting_nodes(cn); 1196 cd9660_sort_nodes(node); 1197 } 1198 1199 /* XXX Bubble sort. */ 1200 static void 1201 cd9660_sort_nodes(cd9660node *node) 1202 { 1203 cd9660node *cn, *next; 1204 1205 do { 1206 TAILQ_FOREACH(cn, &node->cn_children, cn_next_child) { 1207 if ((next = TAILQ_NEXT(cn, cn_next_child)) == NULL) 1208 return; 1209 else if (strcmp(next->isoDirRecord->name, 1210 cn->isoDirRecord->name) >= 0) 1211 continue; 1212 TAILQ_REMOVE(&node->cn_children, next, cn_next_child); 1213 TAILQ_INSERT_BEFORE(cn, next, cn_next_child); 1214 break; 1215 } 1216 } while (cn != NULL); 1217 } 1218 1219 static int 1220 cd9660_count_collisions(cd9660node *copy) 1221 { 1222 int count = 0; 1223 cd9660node *iter, *next; 1224 1225 for (iter = copy; 1226 (next = TAILQ_NEXT(iter, cn_next_child)) != NULL; 1227 iter = next) { 1228 if (cd9660_compare_filename(iter->isoDirRecord->name, 1229 next->isoDirRecord->name) == 0) 1230 count++; 1231 else 1232 return count; 1233 } 1234 #if 0 1235 if ((next = TAILQ_NEXT(iter, cn_next_child)) != NULL) { 1236 printf("cd9660_recurse_on_collision: count is %i \n", count); 1237 compare = cd9660_compare_filename(iter->isoDirRecord->name, 1238 next->isoDirRecord->name); 1239 if (compare == 0) { 1240 count++; 1241 return cd9660_recurse_on_collision(next, count); 1242 } else 1243 return count; 1244 } 1245 #endif 1246 return count; 1247 } 1248 1249 static cd9660node * 1250 cd9660_rrip_move_directory(cd9660node *dir) 1251 { 1252 char newname[9]; 1253 cd9660node *tfile; 1254 1255 /* 1256 * This function needs to: 1257 * 1) Create an empty virtual file in place of the old directory 1258 * 2) Point the virtual file to the new directory 1259 * 3) Point the relocated directory to its old parent 1260 * 4) Move the directory specified by dir into rr_moved_dir, 1261 * and rename it to "diskStructure.rock_ridge_move_count" (as a string) 1262 */ 1263 1264 /* First see if the moved directory even exists */ 1265 if (diskStructure.rr_moved_dir == NULL) { 1266 diskStructure.rr_moved_dir = 1267 cd9660_create_directory(ISO_RRIP_DEFAULT_MOVE_DIR_NAME, 1268 diskStructure.rootNode, dir); 1269 if (diskStructure.rr_moved_dir == NULL) 1270 return 0; 1271 } 1272 1273 /* Create a file with the same ORIGINAL name */ 1274 tfile = cd9660_create_file(dir->node->name, dir->parent, dir); 1275 if (tfile == NULL) 1276 return NULL; 1277 1278 diskStructure.rock_ridge_move_count++; 1279 snprintf(newname, sizeof(newname), "%08i", 1280 diskStructure.rock_ridge_move_count); 1281 1282 /* Point to old parent */ 1283 dir->rr_real_parent = dir->parent; 1284 1285 /* Place the placeholder file */ 1286 if (TAILQ_EMPTY(&dir->rr_real_parent->cn_children)) { 1287 TAILQ_INSERT_HEAD(&dir->rr_real_parent->cn_children, tfile, 1288 cn_next_child); 1289 } else { 1290 cd9660_sorted_child_insert(dir->rr_real_parent, tfile); 1291 } 1292 1293 /* Point to new parent */ 1294 dir->parent = diskStructure.rr_moved_dir; 1295 1296 /* Point the file to the moved directory */ 1297 tfile->rr_relocated = dir; 1298 1299 /* Actually move the directory */ 1300 cd9660_sorted_child_insert(diskStructure.rr_moved_dir, dir); 1301 1302 /* TODO: Inherit permissions / ownership (basically the entire inode) */ 1303 1304 /* Set the new name */ 1305 memset(dir->isoDirRecord->name, 0, ISO_FILENAME_MAXLENGTH_WITH_PADDING); 1306 strncpy(dir->isoDirRecord->name, newname, 8); 1307 1308 return dir; 1309 } 1310 1311 static int 1312 cd9660_add_dot_records(cd9660node *root) 1313 { 1314 struct cd9660_children_head *head = &root->cn_children; 1315 cd9660node *cn; 1316 1317 TAILQ_FOREACH(cn, head, cn_next_child) { 1318 if ((cn->type & CD9660_TYPE_DIR) == 0) 1319 continue; 1320 /* Recursion first */ 1321 cd9660_add_dot_records(cn); 1322 } 1323 cd9660_create_special_directory(CD9660_TYPE_DOT, root); 1324 cd9660_create_special_directory(CD9660_TYPE_DOTDOT, root); 1325 return 1; 1326 } 1327 1328 /* 1329 * Convert node to cd9660 structure 1330 * This function is designed to be called recursively on the root node of 1331 * the filesystem 1332 * Lots of recursion going on here, want to make sure it is efficient 1333 * @param struct fsnode * The root node to be converted 1334 * @param struct cd9660* The parent node (should not be NULL) 1335 * @param int Current directory depth 1336 * @param int* Running count of the number of directories that are being created 1337 */ 1338 static void 1339 cd9660_convert_structure(fsnode *root, cd9660node *parent_node, int level, 1340 int *numDirectories, int *error) 1341 { 1342 fsnode *iterator = root; 1343 cd9660node *this_node; 1344 int working_level; 1345 int add; 1346 int flag = 0; 1347 int counter = 0; 1348 1349 /* 1350 * Newer, more efficient method, reduces recursion depth 1351 */ 1352 if (root == NULL) { 1353 warnx("%s: root is null\n", __func__); 1354 return; 1355 } 1356 1357 /* Test for an empty directory - makefs still gives us the . record */ 1358 if ((S_ISDIR(root->type)) && (root->name[0] == '.') 1359 && (root->name[1] == '\0')) { 1360 root = root->next; 1361 if (root == NULL) 1362 return; 1363 } 1364 if ((this_node = cd9660_allocate_cd9660node()) == NULL) { 1365 CD9660_MEM_ALLOC_ERROR(__func__); 1366 } 1367 1368 /* 1369 * To reduce the number of recursive calls, we will iterate over 1370 * the next pointers to the right. 1371 */ 1372 while (iterator != NULL) { 1373 add = 1; 1374 /* 1375 * Increment the directory count if this is a directory 1376 * Ignore "." entries. We will generate them later 1377 */ 1378 if (!S_ISDIR(iterator->type) || 1379 strcmp(iterator->name, ".") != 0) { 1380 1381 /* Translate the node, including its filename */ 1382 this_node->parent = parent_node; 1383 cd9660_translate_node(iterator, this_node); 1384 this_node->level = level; 1385 1386 if (S_ISDIR(iterator->type)) { 1387 (*numDirectories)++; 1388 this_node->type = CD9660_TYPE_DIR; 1389 working_level = level + 1; 1390 1391 /* 1392 * If at level 8, directory would be at 8 1393 * and have children at 9 which is not 1394 * allowed as per ISO spec 1395 */ 1396 if (level == 8) { 1397 if ((!diskStructure.allow_deep_trees) && 1398 (!diskStructure.rock_ridge_enabled)) { 1399 warnx("error: found entry " 1400 "with depth greater " 1401 "than 8."); 1402 (*error) = 1; 1403 return; 1404 } else if (diskStructure. 1405 rock_ridge_enabled) { 1406 working_level = 3; 1407 /* 1408 * Moved directory is actually 1409 * at level 2. 1410 */ 1411 this_node->level = 1412 working_level - 1; 1413 if (cd9660_rrip_move_directory( 1414 this_node) == 0) { 1415 warnx("Failure in " 1416 "cd9660_rrip_" 1417 "move_directory" 1418 ); 1419 (*error) = 1; 1420 return; 1421 } 1422 add = 0; 1423 } 1424 } 1425 1426 /* Do the recursive call on the children */ 1427 if (iterator->child != 0) { 1428 cd9660_convert_structure( 1429 iterator->child, this_node, 1430 working_level, 1431 numDirectories, error); 1432 1433 if ((*error) == 1) { 1434 warnx("%s: Error on recursive " 1435 "call", __func__); 1436 return; 1437 } 1438 } 1439 1440 } else { 1441 /* Only directories should have children */ 1442 assert(iterator->child == NULL); 1443 1444 this_node->type = CD9660_TYPE_FILE; 1445 } 1446 1447 /* 1448 * Finally, do a sorted insert 1449 */ 1450 if (add) { 1451 cd9660_sorted_child_insert( 1452 parent_node, this_node); 1453 } 1454 1455 /*Allocate new temp_node */ 1456 if (iterator->next != 0) { 1457 this_node = cd9660_allocate_cd9660node(); 1458 if (this_node == NULL) 1459 CD9660_MEM_ALLOC_ERROR(__func__); 1460 } 1461 } 1462 iterator = iterator->next; 1463 } 1464 1465 /* cd9660_handle_collisions(first_node); */ 1466 1467 /* TODO: need cleanup */ 1468 cd9660_copy_filenames(parent_node); 1469 1470 do { 1471 flag = cd9660_handle_collisions(parent_node, counter); 1472 counter++; 1473 cd9660_sorting_nodes(parent_node); 1474 } while ((flag == 1) && (counter < 100)); 1475 } 1476 1477 /* 1478 * Clean up the cd9660node tree 1479 * This is designed to be called recursively on the root node 1480 * @param struct cd9660node *root The node to free 1481 * @returns void 1482 */ 1483 static void 1484 cd9660_free_structure(cd9660node *root) 1485 { 1486 cd9660node *cn; 1487 1488 while ((cn = TAILQ_FIRST(&root->cn_children)) != NULL) { 1489 TAILQ_REMOVE(&root->cn_children, cn, cn_next_child); 1490 cd9660_free_structure(cn); 1491 } 1492 free(root); 1493 } 1494 1495 /* 1496 * Be a little more memory conservative: 1497 * instead of having the TAILQ_ENTRY as part of the cd9660node, 1498 * just create a temporary structure 1499 */ 1500 struct ptq_entry 1501 { 1502 TAILQ_ENTRY(ptq_entry) ptq; 1503 cd9660node *node; 1504 } *n; 1505 1506 #define PTQUEUE_NEW(n,s,r,t){\ 1507 n = malloc(sizeof(struct s)); \ 1508 if (n == NULL) \ 1509 return r; \ 1510 n->node = t;\ 1511 } 1512 1513 /* 1514 * Generate the path tables 1515 * The specific implementation of this function is left as an exercise to the 1516 * programmer. It could be done recursively. Make sure you read how the path 1517 * table has to be laid out, it has levels. 1518 * @param struct iso9660_disk *disk The disk image 1519 * @returns int The number of built path tables (between 1 and 4), 0 on failure 1520 */ 1521 static int 1522 cd9660_generate_path_table(void) 1523 { 1524 cd9660node *cn, *dirNode = diskStructure.rootNode; 1525 cd9660node *last = dirNode; 1526 int pathTableSize = 0; /* computed as we go */ 1527 int counter = 1; /* root gets a count of 0 */ 1528 int parentRecNum = 0; /* root's parent is '0' */ 1529 1530 TAILQ_HEAD(cd9660_pt_head, ptq_entry) pt_head; 1531 TAILQ_INIT(&pt_head); 1532 1533 PTQUEUE_NEW(n, ptq_entry, -1, diskStructure.rootNode); 1534 1535 /* Push the root node */ 1536 TAILQ_INSERT_HEAD(&pt_head, n, ptq); 1537 1538 /* Breadth-first traversal of file structure */ 1539 while (pt_head.tqh_first != 0) { 1540 n = pt_head.tqh_first; 1541 dirNode = n->node; 1542 TAILQ_REMOVE(&pt_head, pt_head.tqh_first, ptq); 1543 free(n); 1544 1545 /* Update the size */ 1546 pathTableSize += ISO_PATHTABLE_ENTRY_BASESIZE 1547 + dirNode->isoDirRecord->name_len[0]+ 1548 (dirNode->isoDirRecord->name_len[0] % 2 == 0 ? 0 : 1); 1549 /* includes the padding bit */ 1550 1551 dirNode->ptnumber=counter; 1552 if (dirNode != last) { 1553 last->ptnext = dirNode; 1554 dirNode->ptprev = last; 1555 } 1556 last = dirNode; 1557 1558 parentRecNum = 1; 1559 if (dirNode->parent != 0) 1560 parentRecNum = dirNode->parent->ptnumber; 1561 1562 /* Push children onto queue */ 1563 TAILQ_FOREACH(cn, &dirNode->cn_children, cn_next_child) { 1564 /* 1565 * Dont add the DOT and DOTDOT types to the path 1566 * table. 1567 */ 1568 if ((cn->type != CD9660_TYPE_DOT) 1569 && (cn->type != CD9660_TYPE_DOTDOT)) { 1570 1571 if (S_ISDIR(cn->node->type)) { 1572 PTQUEUE_NEW(n, ptq_entry, -1, cn); 1573 TAILQ_INSERT_TAIL(&pt_head, n, ptq); 1574 } 1575 } 1576 } 1577 counter++; 1578 } 1579 return pathTableSize; 1580 } 1581 1582 void 1583 cd9660_compute_full_filename(cd9660node *node, char *buf, int level) 1584 { 1585 cd9660node *parent; 1586 1587 parent = (node->rr_real_parent == NULL ? 1588 node->parent : node->rr_real_parent); 1589 if (parent != NULL) { 1590 cd9660_compute_full_filename(parent, buf, level + 1); 1591 strcat(buf, node->node->name); 1592 } else { 1593 /* We are at the root */ 1594 strcat(buf, diskStructure.rootFilesystemPath); 1595 if (buf[strlen(buf) - 1] == '/') 1596 buf[strlen(buf) - 1] = '\0'; 1597 } 1598 1599 if (level != 0) 1600 strcat(buf, "/"); 1601 } 1602 1603 /* NEW filename conversion method */ 1604 typedef int(*cd9660_filename_conversion_functor)(const char *, char *, int); 1605 1606 1607 /* 1608 * TODO: These two functions are almost identical. 1609 * Some code cleanup is possible here 1610 * 1611 * XXX bounds checking! 1612 */ 1613 static int 1614 cd9660_level1_convert_filename(const char *oldname, char *newname, int is_file) 1615 { 1616 /* 1617 * ISO 9660 : 10.1 1618 * File Name shall not contain more than 8 d or d1 characters 1619 * File Name Extension shall not contain more than 3 d or d1 characters 1620 * Directory Identifier shall not contain more than 8 d or d1 characters 1621 */ 1622 int namelen = 0; 1623 int extlen = 0; 1624 int found_ext = 0; 1625 1626 while (*oldname != '\0') { 1627 /* Handle period first, as it is special */ 1628 if (*oldname == '.') { 1629 if (found_ext) { 1630 *newname++ = '_'; 1631 extlen ++; 1632 } 1633 else { 1634 *newname++ = '.'; 1635 found_ext = 1; 1636 } 1637 } else { 1638 /* cut RISC OS file type off ISO name */ 1639 if (diskStructure.archimedes_enabled && 1640 *oldname == ',' && strlen(oldname) == 4) 1641 break; 1642 /* Enforce 12.3 / 8 */ 1643 if (((namelen == 8) && !found_ext) || 1644 (found_ext && extlen == 3)) { 1645 break; 1646 } 1647 1648 if (islower((unsigned char)*oldname)) 1649 *newname++ = toupper((unsigned char)*oldname); 1650 else if (isupper((unsigned char)*oldname) 1651 || isdigit((unsigned char)*oldname)) 1652 *newname++ = *oldname; 1653 else 1654 *newname++ = '_'; 1655 1656 if (found_ext) 1657 extlen++; 1658 else 1659 namelen++; 1660 } 1661 oldname ++; 1662 } 1663 if (is_file) { 1664 if (!found_ext && !diskStructure.omit_trailing_period) 1665 *newname++ = '.'; 1666 /* Add version */ 1667 sprintf(newname, ";%i", 1); 1668 } 1669 return namelen + extlen + found_ext; 1670 } 1671 1672 /* XXX bounds checking! */ 1673 static int 1674 cd9660_level2_convert_filename(const char *oldname, char *newname, int is_file) 1675 { 1676 /* 1677 * ISO 9660 : 7.5.1 1678 * File name : 0+ d or d1 characters 1679 * separator 1 (.) 1680 * File name extension : 0+ d or d1 characters 1681 * separator 2 (;) 1682 * File version number (5 characters, 1-32767) 1683 * 1 <= Sum of File name and File name extension <= 30 1684 */ 1685 int namelen = 0; 1686 int extlen = 0; 1687 int found_ext = 0; 1688 1689 while (*oldname != '\0') { 1690 /* Handle period first, as it is special */ 1691 if (*oldname == '.') { 1692 if (found_ext) { 1693 if (diskStructure.allow_multidot) { 1694 *newname++ = '.'; 1695 } else { 1696 *newname++ = '_'; 1697 } 1698 extlen ++; 1699 } 1700 else { 1701 *newname++ = '.'; 1702 found_ext = 1; 1703 } 1704 } else { 1705 /* cut RISC OS file type off ISO name */ 1706 if (diskStructure.archimedes_enabled && 1707 *oldname == ',' && strlen(oldname) == 4) 1708 break; 1709 if ((namelen + extlen) == 30) 1710 break; 1711 1712 if (islower((unsigned char)*oldname)) 1713 *newname++ = toupper((unsigned char)*oldname); 1714 else if (isupper((unsigned char)*oldname) || 1715 isdigit((unsigned char)*oldname)) 1716 *newname++ = *oldname; 1717 else if (diskStructure.allow_multidot && 1718 *oldname == '.') { 1719 *newname++ = '.'; 1720 } else { 1721 *newname++ = '_'; 1722 } 1723 1724 if (found_ext) 1725 extlen++; 1726 else 1727 namelen++; 1728 } 1729 oldname ++; 1730 } 1731 if (is_file) { 1732 if (!found_ext && !diskStructure.omit_trailing_period) 1733 *newname++ = '.'; 1734 /* Add version */ 1735 sprintf(newname, ";%i", 1); 1736 } 1737 return namelen + extlen + found_ext; 1738 } 1739 1740 #if 0 1741 static int 1742 cd9660_joliet_convert_filename(const char *oldname, char *newname, int is_file) 1743 { 1744 /* TODO: implement later, move to cd9660_joliet.c ?? */ 1745 } 1746 #endif 1747 1748 1749 /* 1750 * Convert a file name to ISO compliant file name 1751 * @param char * oldname The original filename 1752 * @param char ** newname The new file name, in the appropriate character 1753 * set and of appropriate length 1754 * @param int 1 if file, 0 if directory 1755 * @returns int The length of the new string 1756 */ 1757 static int 1758 cd9660_convert_filename(const char *oldname, char *newname, int is_file) 1759 { 1760 /* NEW */ 1761 cd9660_filename_conversion_functor conversion_function = 0; 1762 if (diskStructure.isoLevel == 1) 1763 conversion_function = &cd9660_level1_convert_filename; 1764 else if (diskStructure.isoLevel == 2) 1765 conversion_function = &cd9660_level2_convert_filename; 1766 return (*conversion_function)(oldname, newname, is_file); 1767 } 1768 1769 int 1770 cd9660_compute_record_size(cd9660node *node) 1771 { 1772 int size = node->isoDirRecord->length[0]; 1773 1774 if (diskStructure.rock_ridge_enabled) 1775 size += node->susp_entry_size; 1776 size += node->su_tail_size; 1777 size += size & 1; /* Ensure length of record is even. */ 1778 assert(size <= 254); 1779 return size; 1780 } 1781 1782 static void 1783 cd9660_populate_dot_records(cd9660node *node) 1784 { 1785 node->dot_record->fileDataSector = node->fileDataSector; 1786 memcpy(node->dot_record->isoDirRecord,node->isoDirRecord, 34); 1787 node->dot_record->isoDirRecord->name_len[0] = 1; 1788 node->dot_record->isoDirRecord->name[0] = 0; 1789 node->dot_record->isoDirRecord->name[1] = 0; 1790 node->dot_record->isoDirRecord->length[0] = 34; 1791 node->dot_record->fileRecordSize = 1792 cd9660_compute_record_size(node->dot_record); 1793 1794 if (node == diskStructure.rootNode) { 1795 node->dot_dot_record->fileDataSector = node->fileDataSector; 1796 memcpy(node->dot_dot_record->isoDirRecord,node->isoDirRecord, 1797 34); 1798 } else { 1799 node->dot_dot_record->fileDataSector = 1800 node->parent->fileDataSector; 1801 memcpy(node->dot_dot_record->isoDirRecord, 1802 node->parent->isoDirRecord,34); 1803 } 1804 node->dot_dot_record->isoDirRecord->name_len[0] = 1; 1805 node->dot_dot_record->isoDirRecord->name[0] = 1; 1806 node->dot_dot_record->isoDirRecord->name[1] = 0; 1807 node->dot_dot_record->isoDirRecord->length[0] = 34; 1808 node->dot_dot_record->fileRecordSize = 1809 cd9660_compute_record_size(node->dot_dot_record); 1810 } 1811 1812 /* 1813 * @param struct cd9660node *node The node 1814 * @param int The offset (in bytes) - SHOULD align to the beginning of a sector 1815 * @returns int The total size of files and directory entries (should be 1816 * a multiple of sector size) 1817 */ 1818 static int64_t 1819 cd9660_compute_offsets(cd9660node *node, int64_t startOffset) 1820 { 1821 /* 1822 * This function needs to compute the size of directory records and 1823 * runs, file lengths, and set the appropriate variables both in 1824 * cd9660node and isoDirEntry 1825 */ 1826 int64_t used_bytes = 0; 1827 int64_t current_sector_usage = 0; 1828 cd9660node *child; 1829 fsinode *inode; 1830 int64_t r; 1831 1832 assert(node != NULL); 1833 1834 1835 /* 1836 * NOTE : There needs to be some special case detection for 1837 * the "real root" node, since for it, node->node is undefined 1838 */ 1839 1840 node->fileDataSector = -1; 1841 1842 if (node->type & CD9660_TYPE_DIR) { 1843 node->fileRecordSize = cd9660_compute_record_size(node); 1844 /*Set what sector this directory starts in*/ 1845 node->fileDataSector = 1846 CD9660_BLOCKS(diskStructure.sectorSize,startOffset); 1847 1848 cd9660_bothendian_dword(node->fileDataSector, 1849 node->isoDirRecord->extent); 1850 1851 /* 1852 * First loop over children, need to know the size of 1853 * their directory records 1854 */ 1855 node->fileSectorsUsed = 1; 1856 TAILQ_FOREACH(child, &node->cn_children, cn_next_child) { 1857 node->fileDataLength += 1858 cd9660_compute_record_size(child); 1859 if ((cd9660_compute_record_size(child) + 1860 current_sector_usage) >= 1861 diskStructure.sectorSize) { 1862 current_sector_usage = 0; 1863 node->fileSectorsUsed++; 1864 } 1865 1866 current_sector_usage += 1867 cd9660_compute_record_size(child); 1868 } 1869 1870 cd9660_bothendian_dword(node->fileSectorsUsed * 1871 diskStructure.sectorSize,node->isoDirRecord->size); 1872 1873 /* 1874 * This should point to the sector after the directory 1875 * record (or, the first byte in that sector) 1876 */ 1877 used_bytes += node->fileSectorsUsed * diskStructure.sectorSize; 1878 1879 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1880 child != NULL; child = TAILQ_NEXT(child, cn_next_child)) { 1881 /* Directories need recursive call */ 1882 if (S_ISDIR(child->node->type)) { 1883 r = cd9660_compute_offsets(child, 1884 used_bytes + startOffset); 1885 1886 if (r != -1) 1887 used_bytes += r; 1888 else 1889 return -1; 1890 } 1891 } 1892 1893 /* Explicitly set the . and .. records */ 1894 cd9660_populate_dot_records(node); 1895 1896 /* Finally, do another iteration to write the file data*/ 1897 for (child = TAILQ_NEXT(node->dot_dot_record, cn_next_child); 1898 child != NULL; 1899 child = TAILQ_NEXT(child, cn_next_child)) { 1900 /* Files need extent set */ 1901 if (S_ISDIR(child->node->type)) 1902 continue; 1903 child->fileRecordSize = 1904 cd9660_compute_record_size(child); 1905 1906 child->fileSectorsUsed = 1907 CD9660_BLOCKS(diskStructure.sectorSize, 1908 child->fileDataLength); 1909 1910 inode = child->node->inode; 1911 if ((inode->flags & FI_ALLOCATED) == 0) { 1912 inode->ino = 1913 CD9660_BLOCKS(diskStructure.sectorSize, 1914 used_bytes + startOffset); 1915 inode->flags |= FI_ALLOCATED; 1916 used_bytes += child->fileSectorsUsed * 1917 diskStructure.sectorSize; 1918 } else { 1919 INODE_WARNX(("%s: already allocated inode %d " 1920 "data sectors at %" PRIu32, __func__, 1921 (int)inode->st.st_ino, inode->ino)); 1922 } 1923 child->fileDataSector = inode->ino; 1924 cd9660_bothendian_dword(child->fileDataSector, 1925 child->isoDirRecord->extent); 1926 } 1927 } 1928 1929 return used_bytes; 1930 } 1931 1932 #if 0 1933 /* Might get rid of this func */ 1934 static int 1935 cd9660_copy_stat_info(cd9660node *from, cd9660node *to, int file) 1936 { 1937 to->node->inode->st.st_dev = 0; 1938 to->node->inode->st.st_ino = 0; 1939 to->node->inode->st.st_size = 0; 1940 to->node->inode->st.st_blksize = from->node->inode->st.st_blksize; 1941 to->node->inode->st.st_atime = from->node->inode->st.st_atime; 1942 to->node->inode->st.st_mtime = from->node->inode->st.st_mtime; 1943 to->node->inode->st.st_ctime = from->node->inode->st.st_ctime; 1944 to->node->inode->st.st_uid = from->node->inode->st.st_uid; 1945 to->node->inode->st.st_gid = from->node->inode->st.st_gid; 1946 to->node->inode->st.st_mode = from->node->inode->st.st_mode; 1947 /* Clear out type */ 1948 to->node->inode->st.st_mode = to->node->inode->st.st_mode & ~(S_IFMT); 1949 if (file) 1950 to->node->inode->st.st_mode |= S_IFREG; 1951 else 1952 to->node->inode->st.st_mode |= S_IFDIR; 1953 return 1; 1954 } 1955 #endif 1956 1957 static cd9660node * 1958 cd9660_create_virtual_entry(const char *name, cd9660node *parent, int file, 1959 int insert) 1960 { 1961 cd9660node *temp; 1962 fsnode * tfsnode; 1963 1964 assert(parent != NULL); 1965 1966 temp = cd9660_allocate_cd9660node(); 1967 if (temp == NULL) 1968 return NULL; 1969 1970 if ((tfsnode = malloc(sizeof(fsnode))) == NULL) { 1971 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry"); 1972 return NULL; 1973 } 1974 1975 /* Assume for now name is a valid length */ 1976 if ((tfsnode->name = malloc(strlen(name) + 1)) == NULL) { 1977 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry"); 1978 return NULL; 1979 } 1980 1981 if ((temp->isoDirRecord = 1982 malloc(sizeof(iso_directory_record_cd9660))) == NULL) { 1983 CD9660_MEM_ALLOC_ERROR("cd9660_create_virtual_entry"); 1984 return NULL; 1985 } 1986 1987 strcpy(tfsnode->name, name); 1988 1989 cd9660_convert_filename(tfsnode->name, temp->isoDirRecord->name, file); 1990 1991 temp->node = tfsnode; 1992 temp->parent = parent; 1993 1994 if (insert) { 1995 if (temp->parent != NULL) { 1996 temp->level = temp->parent->level + 1; 1997 if (!TAILQ_EMPTY(&temp->parent->cn_children)) 1998 cd9660_sorted_child_insert(temp->parent, temp); 1999 else 2000 TAILQ_INSERT_HEAD(&temp->parent->cn_children, 2001 temp, cn_next_child); 2002 } 2003 } 2004 2005 if (parent->node != NULL) { 2006 tfsnode->type = parent->node->type; 2007 } 2008 2009 /* Clear out file type bits */ 2010 tfsnode->type &= ~(S_IFMT); 2011 if (file) 2012 tfsnode->type |= S_IFREG; 2013 else 2014 tfsnode->type |= S_IFDIR; 2015 2016 /* Indicate that there is no spec entry (inode) */ 2017 tfsnode->flags &= ~(FSNODE_F_HASSPEC); 2018 #if 0 2019 cd9660_copy_stat_info(parent, temp, file); 2020 #endif 2021 return temp; 2022 } 2023 2024 static cd9660node * 2025 cd9660_create_file(const char * name, cd9660node *parent, cd9660node *me) 2026 { 2027 cd9660node *temp; 2028 2029 temp = cd9660_create_virtual_entry(name,parent,1,1); 2030 if (temp == NULL) 2031 return NULL; 2032 2033 temp->fileDataLength = 0; 2034 2035 temp->type = CD9660_TYPE_FILE | CD9660_TYPE_VIRTUAL; 2036 2037 if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL) 2038 return NULL; 2039 *temp->node->inode = *me->node->inode; 2040 2041 if (cd9960_translate_node_common(temp) == 0) 2042 return NULL; 2043 return temp; 2044 } 2045 2046 /* 2047 * Create a new directory which does not exist on disk 2048 * @param const char * name The name to assign to the directory 2049 * @param const char * parent Pointer to the parent directory 2050 * @returns cd9660node * Pointer to the new directory 2051 */ 2052 static cd9660node * 2053 cd9660_create_directory(const char *name, cd9660node *parent, cd9660node *me) 2054 { 2055 cd9660node *temp; 2056 2057 temp = cd9660_create_virtual_entry(name,parent,0,1); 2058 if (temp == NULL) 2059 return NULL; 2060 temp->node->type |= S_IFDIR; 2061 2062 temp->type = CD9660_TYPE_DIR | CD9660_TYPE_VIRTUAL; 2063 2064 if ((temp->node->inode = calloc(1, sizeof(fsinode))) == NULL) 2065 return NULL; 2066 *temp->node->inode = *me->node->inode; 2067 2068 if (cd9960_translate_node_common(temp) == 0) 2069 return NULL; 2070 return temp; 2071 } 2072 2073 static cd9660node * 2074 cd9660_create_special_directory(u_char type, cd9660node *parent) 2075 { 2076 cd9660node *temp, *first; 2077 char na[2]; 2078 2079 assert(parent != NULL); 2080 2081 if (type == CD9660_TYPE_DOT) 2082 na[0] = 0; 2083 else if (type == CD9660_TYPE_DOTDOT) 2084 na[0] = 1; 2085 else 2086 return 0; 2087 2088 na[1] = 0; 2089 if ((temp = cd9660_create_virtual_entry(na, parent, 0, 0)) == NULL) 2090 return NULL; 2091 2092 temp->parent = parent; 2093 temp->type = type; 2094 temp->isoDirRecord->length[0] = 34; 2095 /* Dot record is always first */ 2096 if (type == CD9660_TYPE_DOT) { 2097 parent->dot_record = temp; 2098 TAILQ_INSERT_HEAD(&parent->cn_children, temp, cn_next_child); 2099 /* DotDot should be second */ 2100 } else if (type == CD9660_TYPE_DOTDOT) { 2101 parent->dot_dot_record = temp; 2102 /* 2103 * If the first child is the dot record, insert 2104 * this second. Otherwise, insert it at the head. 2105 */ 2106 if ((first = TAILQ_FIRST(&parent->cn_children)) == NULL || 2107 (first->type & CD9660_TYPE_DOT) == 0) { 2108 TAILQ_INSERT_HEAD(&parent->cn_children, temp, 2109 cn_next_child); 2110 } else { 2111 TAILQ_INSERT_AFTER(&parent->cn_children, first, temp, 2112 cn_next_child); 2113 } 2114 } 2115 2116 return temp; 2117 } 2118 2119 int 2120 cd9660_add_generic_bootimage(const char *bootimage) 2121 { 2122 struct stat stbuf; 2123 2124 assert(bootimage != NULL); 2125 2126 if (*bootimage == '\0') { 2127 warnx("Error: Boot image must be a filename"); 2128 return 0; 2129 } 2130 2131 if ((diskStructure.generic_bootimage = strdup(bootimage)) == NULL) { 2132 warn("%s: strdup", __func__); 2133 return 0; 2134 } 2135 2136 /* Get information about the file */ 2137 if (lstat(diskStructure.generic_bootimage, &stbuf) == -1) 2138 err(EXIT_FAILURE, "%s: lstat(\"%s\")", __func__, 2139 diskStructure.generic_bootimage); 2140 2141 if (stbuf.st_size > 32768) { 2142 warnx("Error: Boot image must be no greater than 32768 bytes"); 2143 return 0; 2144 } 2145 2146 if (diskStructure.verbose_level > 0) { 2147 printf("Generic boot image image has size %lld\n", 2148 (long long)stbuf.st_size); 2149 } 2150 2151 diskStructure.has_generic_bootimage = 1; 2152 2153 return 1; 2154 } 2155