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