1 /* $NetBSD: cd9660.h,v 1.21 2015/12/24 15:52:37 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 #ifndef _MAKEFS_CD9660_H 36 #define _MAKEFS_CD9660_H 37 38 #if HAVE_NBTOOL_CONFIG_H 39 #include "nbtool_config.h" 40 #endif 41 42 #include <assert.h> 43 #include <errno.h> 44 #include <fcntl.h> 45 #include <stdarg.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <unistd.h> 50 #include <time.h> 51 #include <limits.h> 52 #include <sys/queue.h> 53 #include <sys/param.h> 54 #include <sys/endian.h> 55 56 #include "makefs.h" 57 #include "iso.h" 58 #include "iso_rrip.h" 59 #include "cd9660/cd9660_eltorito.h" 60 61 #ifdef DEBUG 62 #define INODE_WARNX(__x) warnx __x 63 #else /* DEBUG */ 64 #define INODE_WARNX(__x) 65 #endif /* DEBUG */ 66 67 #define CD9660MAXPATH 4096 68 69 #define ISO_STRING_FILTER_NONE = 0x00 70 #define ISO_STRING_FILTER_DCHARS = 0x01 71 #define ISO_STRING_FILTER_ACHARS = 0x02 72 73 /* 74 Extended preferences type, in the spirit of what makefs gives us (only ints) 75 */ 76 typedef struct { 77 const char *shortName; /* Short option */ 78 const char *name; /* option name */ 79 char *value; /* where to stuff the value */ 80 int minLength; /* minimum for value */ 81 int maxLength; /* maximum for value */ 82 const char *desc; /* option description */ 83 int filterFlags; 84 } string_option_t; 85 86 /******** STRUCTURES **********/ 87 88 /*Defaults*/ 89 #define ISO_DEFAULT_VOLUMEID "MAKEFS_CD9660_IMAGE" 90 #define ISO_DEFAULT_APPID "MAKEFS" 91 #define ISO_DEFAULT_PUBLISHER "MAKEFS" 92 #define ISO_DEFAULT_PREPARER "MAKEFS" 93 94 #define ISO_VOLUME_DESCRIPTOR_STANDARD_ID "CD001" 95 #define ISO_VOLUME_DESCRIPTOR_BOOT 0 96 #define ISO_VOLUME_DESCRIPTOR_PVD 1 97 #define ISO_VOLUME_DESCRIPTOR_TERMINATOR 255 98 99 /*30 for name and extension, as well as version number and padding bit*/ 100 #define ISO_FILENAME_MAXLENGTH_BEFORE_VERSION 30 101 #define ISO_FILENAME_MAXLENGTH 36 102 #define ISO_FILENAME_MAXLENGTH_WITH_PADDING 37 103 104 #define ISO_FLAG_CLEAR 0x00 105 #define ISO_FLAG_HIDDEN 0x01 106 #define ISO_FLAG_DIRECTORY 0x02 107 #define ISO_FLAG_ASSOCIATED 0x04 108 #define ISO_FLAG_PERMISSIONS 0x08 109 #define ISO_FLAG_RESERVED5 0x10 110 #define ISO_FLAG_RESERVED6 0x20 111 #define ISO_FLAG_FINAL_RECORD 0x40 112 113 #define ISO_PATHTABLE_ENTRY_BASESIZE 8 114 115 #define ISO_RRIP_DEFAULT_MOVE_DIR_NAME "RR_MOVED" 116 #define RRIP_DEFAULT_MOVE_DIR_NAME ".rr_moved" 117 118 #define CD9660_BLOCKS(__sector_size, __bytes) \ 119 howmany((__bytes), (__sector_size)) 120 121 #define CD9660_MEM_ALLOC_ERROR(_F) \ 122 err(EXIT_FAILURE, "%s, %s l. %d", _F, __FILE__, __LINE__) 123 124 #define CD9660_TYPE_FILE 0x01 125 #define CD9660_TYPE_DIR 0x02 126 #define CD9660_TYPE_DOT 0x04 127 #define CD9660_TYPE_DOTDOT 0x08 128 #define CD9660_TYPE_VIRTUAL 0x80 129 130 #define CD9660_INODE_HASH_SIZE 1024 131 #define CD9660_SECTOR_SIZE 2048 132 133 #define CD9660_END_PADDING 150 134 135 /* Slight modification of the ISO structure in iso.h */ 136 typedef struct _iso_directory_record_cd9660 { 137 u_char length [ISODCL (1, 1)]; /* 711 */ 138 u_char ext_attr_length [ISODCL (2, 2)]; /* 711 */ 139 u_char extent [ISODCL (3, 10)]; /* 733 */ 140 u_char size [ISODCL (11, 18)]; /* 733 */ 141 u_char date [ISODCL (19, 25)]; /* 7 by 711 */ 142 u_char flags [ISODCL (26, 26)]; 143 u_char file_unit_size [ISODCL (27, 27)]; /* 711 */ 144 u_char interleave [ISODCL (28, 28)]; /* 711 */ 145 u_char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ 146 u_char name_len [ISODCL (33, 33)]; /* 711 */ 147 char name [ISO_FILENAME_MAXLENGTH_WITH_PADDING]; 148 } iso_directory_record_cd9660; 149 150 /* TODO: Lots of optimization of this structure */ 151 typedef struct _cd9660node { 152 u_char type;/* Used internally */ 153 /* Tree structure */ 154 struct _cd9660node *parent; /* parent (NULL if root) */ 155 TAILQ_HEAD(cd9660_children_head, _cd9660node) cn_children; 156 TAILQ_ENTRY(_cd9660node) cn_next_child; 157 158 struct _cd9660node *dot_record; /* For directories, used mainly in RRIP */ 159 struct _cd9660node *dot_dot_record; 160 161 fsnode *node; /* pointer to fsnode */ 162 struct _iso_directory_record_cd9660 *isoDirRecord; 163 struct iso_extended_attributes *isoExtAttributes; 164 165 /***** SIZE CALCULATION *****/ 166 /*already stored in isoDirRecord, but this is an int version, and will be 167 copied to isoDirRecord on writing*/ 168 uint32_t fileDataSector; 169 170 /* 171 * same thing, though some notes: 172 * If a file, this is the file size 173 * If a directory, this is the size of all its children's 174 * directory records 175 * plus necessary padding 176 */ 177 int64_t fileDataLength; 178 179 int64_t fileSectorsUsed; 180 int fileRecordSize;/*copy of a variable, int for quicker calculations*/ 181 182 /* Old name, used for renaming - needs to be optimized but low priority */ 183 char o_name [ISO_FILENAME_MAXLENGTH_WITH_PADDING]; 184 185 /***** SPACE RESERVED FOR EXTENSIONS *****/ 186 /* For memory efficiency's sake - we should move this to a separate struct 187 and point to null if not needed */ 188 /* For Rock Ridge */ 189 struct _cd9660node *rr_real_parent, *rr_relocated; 190 191 int64_t susp_entry_size; 192 int64_t susp_dot_entry_size; 193 int64_t susp_dot_dot_entry_size; 194 195 /* Continuation area stuff */ 196 int64_t susp_entry_ce_start; 197 int64_t susp_dot_ce_start; 198 int64_t susp_dot_dot_ce_start; 199 200 int64_t susp_entry_ce_length; 201 int64_t susp_dot_ce_length; 202 int64_t susp_dot_dot_ce_length; 203 204 /* Data to put at the end of the System Use field */ 205 int64_t su_tail_size; 206 char *su_tail_data; 207 208 /*** PATH TABLE STUFF ***/ 209 int level; /*depth*/ 210 int ptnumber; 211 struct _cd9660node *ptnext, *ptprev, *ptlast; 212 213 /* SUSP entries */ 214 TAILQ_HEAD(susp_linked_list, ISO_SUSP_ATTRIBUTES) head; 215 } cd9660node; 216 217 typedef struct _path_table_entry 218 { 219 u_char length[ISODCL (1, 1)]; 220 u_char extended_attribute_length[ISODCL (2, 2)]; 221 u_char first_sector[ISODCL (3, 6)]; 222 u_char parent_number[ISODCL (7, 8)]; 223 u_char name[ISO_FILENAME_MAXLENGTH_WITH_PADDING]; 224 } path_table_entry; 225 226 typedef struct _volume_descriptor 227 { 228 u_char *volumeDescriptorData; /*ALWAYS 2048 bytes long*/ 229 int64_t sector; 230 struct _volume_descriptor *next; 231 } volume_descriptor; 232 233 typedef struct _iso9660_disk { 234 int sectorSize; 235 struct iso_primary_descriptor primaryDescriptor; 236 struct iso_supplementary_descriptor supplementaryDescriptor; 237 238 volume_descriptor *firstVolumeDescriptor; 239 240 cd9660node *rootNode; 241 242 /* Important sector numbers here */ 243 /* primaryDescriptor.type_l_path_table*/ 244 int64_t primaryBigEndianTableSector; 245 246 /* primaryDescriptor.type_m_path_table*/ 247 int64_t primaryLittleEndianTableSector; 248 249 /* primaryDescriptor.opt_type_l_path_table*/ 250 int64_t secondaryBigEndianTableSector; 251 252 /* primaryDescriptor.opt_type_m_path_table*/ 253 int64_t secondaryLittleEndianTableSector; 254 255 /* primaryDescriptor.path_table_size*/ 256 int pathTableLength; 257 int64_t dataFirstSector; 258 259 int64_t totalSectors; 260 /* OPTIONS GO HERE */ 261 int isoLevel; 262 263 int include_padding_areas; 264 265 int follow_sym_links; 266 int verbose_level; 267 int displayHelp; 268 int keep_bad_images; 269 270 /* SUSP options and variables */ 271 int64_t susp_continuation_area_start_sector; 272 int64_t susp_continuation_area_size; 273 int64_t susp_continuation_area_current_free; 274 275 int rock_ridge_enabled; 276 /* Other Rock Ridge Variables */ 277 char *rock_ridge_renamed_dir_name; 278 int rock_ridge_move_count; 279 cd9660node *rr_moved_dir; 280 281 int archimedes_enabled; 282 int chrp_boot; 283 284 /* Spec breaking options */ 285 u_char allow_deep_trees; 286 u_char allow_start_dot; 287 u_char allow_max_name; /* Allow 37 char filenames*/ 288 u_char allow_illegal_chars; /* ~, !, # */ 289 u_char allow_lowercase; 290 u_char allow_multidot; 291 u_char omit_trailing_period; 292 293 /* BOOT INFORMATION HERE */ 294 int has_generic_bootimage; /* Default to 0 */ 295 char *generic_bootimage; 296 297 int is_bootable;/* Default to 0 */ 298 int64_t boot_catalog_sector; 299 boot_volume_descriptor *boot_descriptor; 300 char * boot_image_directory; 301 302 TAILQ_HEAD(boot_image_list,cd9660_boot_image) boot_images; 303 int image_serialno; 304 LIST_HEAD(boot_catalog_entries,boot_catalog_entry) boot_entries; 305 306 } iso9660_disk; 307 308 /************ FUNCTIONS **************/ 309 int cd9660_valid_a_chars(const char *); 310 int cd9660_valid_d_chars(const char *); 311 void cd9660_uppercase_characters(char *, size_t); 312 313 /* ISO Data Types */ 314 void cd9660_721(uint16_t, unsigned char *); 315 void cd9660_731(uint32_t, unsigned char *); 316 void cd9660_722(uint16_t, unsigned char *); 317 void cd9660_732(uint32_t, unsigned char *); 318 void cd9660_bothendian_dword(uint32_t dw, unsigned char *); 319 void cd9660_bothendian_word(uint16_t dw, unsigned char *); 320 void cd9660_set_date(char *, time_t); 321 void cd9660_time_8426(unsigned char *, time_t); 322 void cd9660_time_915(unsigned char *, time_t); 323 324 /*** Boot Functions ***/ 325 int cd9660_write_generic_bootimage(FILE *); 326 int cd9660_write_boot(iso9660_disk *, FILE *); 327 int cd9660_add_boot_disk(iso9660_disk *, const char *); 328 int cd9660_eltorito_add_boot_option(iso9660_disk *, const char *, 329 const char *); 330 int cd9660_setup_boot(iso9660_disk *, int); 331 int cd9660_setup_boot_volume_descriptor(iso9660_disk *, 332 volume_descriptor *); 333 334 335 /*** Write Functions ***/ 336 int cd9660_write_image(iso9660_disk *, const char *image); 337 int cd9660_copy_file(iso9660_disk *, FILE *, off_t, const char *); 338 339 void cd9660_compute_full_filename(cd9660node *, char *); 340 int cd9660_compute_record_size(iso9660_disk *, cd9660node *); 341 342 /* Debugging functions */ 343 void debug_print_tree(iso9660_disk *, cd9660node *,int); 344 void debug_print_path_tree(cd9660node *); 345 void debug_print_volume_descriptor_information(iso9660_disk *); 346 void debug_dump_to_xml_ptentry(path_table_entry *,int, int); 347 void debug_dump_to_xml_path_table(FILE *, off_t, int, int); 348 void debug_dump_to_xml(FILE *); 349 int debug_get_encoded_number(unsigned char *, int); 350 void debug_dump_integer(const char *, char *,int); 351 void debug_dump_string(const char *,unsigned char *,int); 352 void debug_dump_directory_record_9_1(unsigned char *); 353 void debug_dump_to_xml_volume_descriptor(unsigned char *,int); 354 355 void cd9660_pad_string_spaces(char *, int); 356 357 #endif 358