Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/fs/udf/ecma167-udf.h
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2001, 2002 Scott Long <scottl@freebsd.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 /* ecma167-udf.h */ 32 /* Structure/definitions/constants a la ECMA 167 rev. 3 */ 33 34 /* Tag identifiers */ 35 enum { 36 TAGID_PRI_VOL = 1, 37 TAGID_ANCHOR = 2, 38 TAGID_VOL = 3, 39 TAGID_IMP_VOL = 4, 40 TAGID_PARTITION = 5, 41 TAGID_LOGVOL = 6, 42 TAGID_UNALLOC_SPACE = 7, 43 TAGID_TERM = 8, 44 TAGID_LOGVOL_INTEGRITY = 9, 45 TAGID_FSD = 256, 46 TAGID_FID = 257, 47 TAGID_FENTRY = 261 48 }; 49 50 /* Descriptor tag [3/7.2] */ 51 struct desc_tag { 52 uint16_t id; 53 uint16_t descriptor_ver; 54 uint8_t cksum; 55 uint8_t reserved; 56 uint16_t serial_num; 57 uint16_t desc_crc; 58 uint16_t desc_crc_len; 59 uint32_t tag_loc; 60 } __packed; 61 62 /* Recorded Address [4/7.1] */ 63 struct lb_addr { 64 uint32_t lb_num; 65 uint16_t part_num; 66 } __packed; 67 68 /* Extent Descriptor [3/7.1] */ 69 struct extent_ad { 70 uint32_t len; 71 uint32_t loc; 72 } __packed; 73 74 /* Short Allocation Descriptor [4/14.14.1] */ 75 struct short_ad { 76 uint32_t len; 77 uint32_t pos; 78 } __packed; 79 80 /* Long Allocation Descriptor [4/14.14.2] */ 81 struct long_ad { 82 uint32_t len; 83 struct lb_addr loc; 84 uint16_t ad_flags; 85 uint32_t ad_id; 86 } __packed; 87 88 /* Extended Allocation Descriptor [4/14.14.3] */ 89 struct ext_ad { 90 uint32_t ex_len; 91 uint32_t rec_len; 92 uint32_t inf_len; 93 struct lb_addr ex_loc; 94 uint8_t reserved[2]; 95 } __packed; 96 97 union icb { 98 struct short_ad s_ad; 99 struct long_ad l_ad; 100 struct ext_ad e_ad; 101 }; 102 103 /* Character set spec [1/7.2.1] */ 104 struct charspec { 105 uint8_t type; 106 uint8_t inf[63]; 107 } __packed; 108 109 /* Timestamp [1/7.3] */ 110 struct timestamp { 111 uint16_t type_tz; 112 uint16_t year; 113 uint8_t month; 114 uint8_t day; 115 uint8_t hour; 116 uint8_t minute; 117 uint8_t second; 118 uint8_t centisec; 119 uint8_t hund_usec; 120 uint8_t usec; 121 } __packed; 122 123 /* Entity Identifier [1/7.4] */ 124 #define UDF_REGID_ID_SIZE 23 125 struct regid { 126 uint8_t flags; 127 uint8_t id[UDF_REGID_ID_SIZE]; 128 uint8_t id_suffix[8]; 129 } __packed; 130 131 /* ICB Tag [4/14.6] */ 132 struct icb_tag { 133 uint32_t prev_num_dirs; 134 uint16_t strat_type; 135 uint8_t strat_param[2]; 136 uint16_t max_num_entries; 137 uint8_t reserved; 138 uint8_t file_type; 139 struct lb_addr parent_icb; 140 uint16_t flags; 141 } __packed; 142 #define UDF_ICB_TAG_FLAGS_SETUID 0x40 143 #define UDF_ICB_TAG_FLAGS_SETGID 0x80 144 #define UDF_ICB_TAG_FLAGS_STICKY 0x100 145 146 /* Anchor Volume Descriptor Pointer [3/10.2] */ 147 struct anchor_vdp { 148 struct desc_tag tag; 149 struct extent_ad main_vds_ex; 150 struct extent_ad reserve_vds_ex; 151 } __packed; 152 153 /* Volume Descriptor Pointer [3/10.3] */ 154 struct vol_desc_ptr { 155 struct desc_tag tag; 156 uint32_t vds_number; 157 struct extent_ad next_vds_ex; 158 } __packed; 159 160 /* Primary Volume Descriptor [3/10.1] */ 161 struct pri_vol_desc { 162 struct desc_tag tag; 163 uint32_t seq_num; 164 uint32_t pdv_num; 165 char vol_id[32]; 166 uint16_t vds_num; 167 uint16_t max_vol_seq; 168 uint16_t ichg_lvl; 169 uint16_t max_ichg_lvl; 170 uint32_t charset_list; 171 uint32_t max_charset_list; 172 char volset_id[128]; 173 struct charspec desc_charset; 174 struct charspec explanatory_charset; 175 struct extent_ad vol_abstract; 176 struct extent_ad vol_copyright; 177 struct regid app_id; 178 struct timestamp time; 179 struct regid imp_id; 180 uint8_t imp_use[64]; 181 uint32_t prev_vds_lov; 182 uint16_t flags; 183 uint8_t reserved[22]; 184 } __packed; 185 186 /* Logical Volume Descriptor [3/10.6] */ 187 struct logvol_desc { 188 struct desc_tag tag; 189 uint32_t seq_num; 190 struct charspec desc_charset; 191 char logvol_id[128]; 192 uint32_t lb_size; 193 struct regid domain_id; 194 union { 195 struct long_ad fsd_loc; 196 uint8_t logvol_content_use[16]; 197 } _lvd_use; 198 uint32_t mt_l; /* Partition map length */ 199 uint32_t n_pm; /* Number of partition maps */ 200 struct regid imp_id; 201 uint8_t imp_use[128]; 202 struct extent_ad integrity_seq_id; 203 uint8_t maps[1]; 204 } __packed; 205 206 /* Type 1 Partition Map [3/10.7.2] */ 207 struct part_map_1 { 208 uint8_t type; 209 uint8_t len; 210 uint16_t vol_seq_num; 211 uint16_t part_num; 212 } __packed; 213 214 #define UDF_PMAP_TYPE1_SIZE 6 215 216 /* Type 2 Partition Map [3/10.7.3] */ 217 struct part_map_2 { 218 uint8_t type; 219 uint8_t len; 220 uint8_t part_id[62]; 221 } __packed; 222 223 #define UDF_PMAP_TYPE2_SIZE 64 224 225 /* Virtual Partition Map [UDF 2.01/2.2.8] */ 226 struct part_map_virt { 227 uint8_t type; 228 uint8_t len; 229 uint8_t reserved[2]; 230 struct regid id; 231 uint16_t vol_seq_num; 232 uint16_t part_num; 233 uint8_t reserved1[24]; 234 } __packed; 235 236 /* Sparable Partition Map [UDF 2.01/2.2.9] */ 237 struct part_map_spare { 238 uint8_t type; 239 uint8_t len; 240 uint8_t reserved[2]; 241 struct regid id; 242 uint16_t vol_seq_num; 243 uint16_t part_num; 244 uint16_t packet_len; 245 uint8_t n_st; /* Number of Sparing Tables */ 246 uint8_t reserved1; 247 uint32_t st_size; 248 uint32_t st_loc[1]; 249 } __packed; 250 251 union udf_pmap { 252 struct part_map_1 pm1; 253 struct part_map_2 pm2; 254 struct part_map_virt pmv; 255 struct part_map_spare pms; 256 }; 257 258 /* Sparing Map Entry [UDF 2.01/2.2.11] */ 259 struct spare_map_entry { 260 uint32_t org; 261 uint32_t map; 262 } __packed; 263 264 /* Sparing Table [UDF 2.01/2.2.11] */ 265 struct udf_sparing_table { 266 struct desc_tag tag; 267 struct regid id; 268 uint16_t rt_l; /* Relocation Table len */ 269 uint8_t reserved[2]; 270 uint32_t seq_num; 271 struct spare_map_entry entries[1]; 272 } __packed; 273 274 /* Partition Descriptor [3/10.5] */ 275 struct part_desc { 276 struct desc_tag tag; 277 uint32_t seq_num; 278 uint16_t flags; 279 uint16_t part_num; 280 struct regid contents; 281 uint8_t contents_use[128]; 282 uint32_t access_type; 283 uint32_t start_loc; 284 uint32_t part_len; 285 struct regid imp_id; 286 uint8_t imp_use[128]; 287 uint8_t reserved[156]; 288 } __packed; 289 290 /* File Set Descriptor [4/14.1] */ 291 struct fileset_desc { 292 struct desc_tag tag; 293 struct timestamp time; 294 uint16_t ichg_lvl; 295 uint16_t max_ichg_lvl; 296 uint32_t charset_list; 297 uint32_t max_charset_list; 298 uint32_t fileset_num; 299 uint32_t fileset_desc_num; 300 struct charspec logvol_id_charset; 301 char logvol_id[128]; 302 struct charspec fileset_charset; 303 char fileset_id[32]; 304 char copyright_file_id[32]; 305 char abstract_file_id[32]; 306 struct long_ad rootdir_icb; 307 struct regid domain_id; 308 struct long_ad next_ex; 309 struct long_ad streamdir_icb; 310 uint8_t reserved[32]; 311 } __packed; 312 313 /* File Identifier Descriptor [4/14.4] */ 314 struct fileid_desc { 315 struct desc_tag tag; 316 uint16_t file_num; 317 uint8_t file_char; 318 uint8_t l_fi; /* Length of file identifier area */ 319 struct long_ad icb; 320 uint16_t l_iu; /* Length of implementation use area */ 321 uint8_t data[1]; 322 } __packed; 323 #define UDF_FID_SIZE 38 324 #define UDF_FILE_CHAR_VIS (1 << 0) /* Visible */ 325 #define UDF_FILE_CHAR_DIR (1 << 1) /* Directory */ 326 #define UDF_FILE_CHAR_DEL (1 << 2) /* Deleted */ 327 #define UDF_FILE_CHAR_PAR (1 << 3) /* Parent Directory */ 328 #define UDF_FILE_CHAR_META (1 << 4) /* Stream metadata */ 329 330 /* File Entry [4/14.9] */ 331 struct file_entry { 332 struct desc_tag tag; 333 struct icb_tag icbtag; 334 uint32_t uid; 335 uint32_t gid; 336 uint32_t perm; 337 uint16_t link_cnt; 338 uint8_t rec_format; 339 uint8_t rec_disp_attr; 340 uint32_t rec_len; 341 uint64_t inf_len; 342 uint64_t logblks_rec; 343 struct timestamp atime; 344 struct timestamp mtime; 345 struct timestamp attrtime; 346 uint32_t ckpoint; 347 struct long_ad ex_attr_icb; 348 struct regid imp_id; 349 uint64_t unique_id; 350 uint32_t l_ea; /* Length of extended attribute area */ 351 uint32_t l_ad; /* Length of allocation descriptors */ 352 uint8_t data[1]; 353 } __packed; 354 #define UDF_FENTRY_SIZE 176 355 #define UDF_FENTRY_PERM_USER_MASK 0x07 356 #define UDF_FENTRY_PERM_GRP_MASK 0xE0 357 #define UDF_FENTRY_PERM_OWNER_MASK 0x1C00 358 359 /* Path Component [4/14.16.1] */ 360 struct path_component { 361 uint8_t type; 362 uint8_t length; 363 uint16_t version; 364 uint8_t identifier[1]; 365 } __packed; 366 #define UDF_PATH_ROOT 2 367 #define UDF_PATH_DOTDOT 3 368 #define UDF_PATH_DOT 4 369 #define UDF_PATH_PATH 5 370 371 union dscrptr { 372 struct desc_tag tag; 373 struct anchor_vdp avdp; 374 struct vol_desc_ptr vdp; 375 struct pri_vol_desc pvd; 376 struct logvol_desc lvd; 377 struct part_desc pd; 378 struct fileset_desc fsd; 379 struct fileid_desc fid; 380 struct file_entry fe; 381 }; 382 383 /* Useful defines */ 384 385 #define GETICB(ad_type, fentry, offset) \ 386 (struct ad_type *)&fentry->data[offset] 387 388 #define GETICBLEN(ad_type, icb) le32toh(((struct ad_type *)(icb))->len)
Cache object: 91b2dffd4b11659c2b78a969986b28d4
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