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 * Copyright (c) 2001, 2002 Scott Long <scottl@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: releng/5.0/sys/fs/udf/ecma167-udf.h 103870 2002-09-23 18:54:32Z alfred $ 27 */ 28 29 /* ecma167-udf.h */ 30 /* Structure/definitions/constants a la ECMA 167 rev. 3 */ 31 32 /* Tag identifiers */ 33 enum { 34 TAGID_PRI_VOL = 1, 35 TAGID_ANCHOR = 2, 36 TAGID_VOL = 3, 37 TAGID_IMP_VOL = 4, 38 TAGID_PARTITION = 5, 39 TAGID_LOGVOL = 6, 40 TAGID_UNALLOC_SPACE = 7, 41 TAGID_TERM = 8, 42 TAGID_LOGVOL_INTEGRITY = 9, 43 TAGID_FSD = 256, 44 TAGID_FID = 257, 45 TAGID_FENTRY = 261 46 }; 47 48 /* Descriptor tag [3/7.2] */ 49 struct desc_tag { 50 uint16_t id; 51 uint16_t descriptor_ver; 52 uint8_t cksum; 53 uint8_t reserved; 54 uint16_t serial_num; 55 uint16_t desc_crc; 56 uint16_t desc_crc_len; 57 uint32_t tag_loc; 58 } __packed; 59 60 /* Recorded Address [4/7.1] */ 61 struct lb_addr { 62 uint32_t lb_num; 63 uint16_t part_num; 64 } __packed; 65 66 /* Extent Descriptor [3/7.1] */ 67 struct extent_ad { 68 uint32_t len; 69 uint32_t loc; 70 } __packed; 71 72 /* Short Allocation Descriptor [4/14.14.1] */ 73 struct short_ad { 74 uint32_t len; 75 uint32_t pos; 76 } __packed; 77 78 /* Long Allocation Descriptor [4/14.14.2] */ 79 struct long_ad { 80 uint32_t len; 81 struct lb_addr loc; 82 uint16_t ad_flags; 83 uint32_t ad_id; 84 } __packed; 85 86 /* Extended Allocation Descriptor [4/14.14.3] */ 87 struct ext_ad { 88 uint32_t ex_len; 89 uint32_t rec_len; 90 uint32_t inf_len; 91 struct lb_addr ex_loc; 92 uint8_t reserved[2]; 93 } __packed; 94 95 union icb { 96 struct short_ad s_ad; 97 struct long_ad l_ad; 98 struct ext_ad e_ad; 99 }; 100 101 /* Character set spec [1/7.2.1] */ 102 struct charspec { 103 uint8_t type; 104 uint8_t inf[63]; 105 } __packed; 106 107 /* Timestamp [1/7.3] */ 108 struct timestamp { 109 uint16_t type_tz; 110 uint16_t year; 111 uint8_t month; 112 uint8_t day; 113 uint8_t hour; 114 uint8_t minute; 115 uint8_t second; 116 uint8_t centisec; 117 uint8_t hund_usec; 118 uint8_t usec; 119 } __packed; 120 121 /* Entity Identifier [1/7.4] */ 122 #define UDF_REGID_ID_SIZE 23 123 struct regid { 124 uint8_t flags; 125 uint8_t id[UDF_REGID_ID_SIZE]; 126 uint8_t id_suffix[8]; 127 } __packed; 128 129 /* ICB Tag [4/14.6] */ 130 struct icb_tag { 131 uint32_t prev_num_dirs; 132 uint16_t strat_type; 133 uint8_t strat_param[2]; 134 uint16_t max_num_entries; 135 uint8_t reserved; 136 uint8_t file_type; 137 struct lb_addr parent_icb; 138 uint16_t flags; 139 } __packed; 140 #define UDF_ICB_TAG_FLAGS_SETUID 0x40 141 #define UDF_ICB_TAG_FLAGS_SETGID 0x80 142 #define UDF_ICB_TAG_FLAGS_STICKY 0x100 143 144 /* Anchor Volume Descriptor Pointer [3/10.2] */ 145 struct anchor_vdp { 146 struct desc_tag tag; 147 struct extent_ad main_vds_ex; 148 struct extent_ad reserve_vds_ex; 149 } __packed; 150 151 /* Volume Descriptor Pointer [3/10.3] */ 152 struct vol_desc_ptr { 153 struct desc_tag tag; 154 uint32_t vds_number; 155 struct extent_ad next_vds_ex; 156 } __packed; 157 158 /* Primary Volume Descriptor [3/10.1] */ 159 struct pri_vol_desc { 160 struct desc_tag tag; 161 uint32_t seq_num; 162 uint32_t pdv_num; 163 char vol_id[32]; 164 uint16_t vds_num; 165 uint16_t max_vol_seq; 166 uint16_t ichg_lvl; 167 uint16_t max_ichg_lvl; 168 uint32_t charset_list; 169 uint32_t max_charset_list; 170 char volset_id[128]; 171 struct charspec desc_charset; 172 struct charspec explanatory_charset; 173 struct extent_ad vol_abstract; 174 struct extent_ad vol_copyright; 175 struct regid app_id; 176 struct timestamp time; 177 struct regid imp_id; 178 uint8_t imp_use[64]; 179 uint32_t prev_vds_lov; 180 uint16_t flags; 181 uint8_t reserved[22]; 182 } __packed; 183 184 /* Logical Volume Descriptor [3/10.6] */ 185 struct logvol_desc { 186 struct desc_tag tag; 187 uint32_t seq_num; 188 struct charspec desc_charset; 189 char logvol_id[128]; 190 uint32_t lb_size; 191 struct regid domain_id; 192 union { 193 struct long_ad fsd_loc; 194 uint8_t logvol_content_use[16]; 195 } _lvd_use; 196 uint32_t mt_l; /* Partition map length */ 197 uint32_t n_pm; /* Number of partition maps */ 198 struct regid imp_id; 199 uint8_t imp_use[128]; 200 struct extent_ad integrity_seq_id; 201 uint8_t maps[1]; 202 } __packed; 203 204 #define UDF_PMAP_SIZE 64 205 206 /* 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 /* Type 2 Partition Map [3/10.7.3] */ 215 struct part_map_2 { 216 uint8_t type; 217 uint8_t len; 218 uint8_t part_id[62]; 219 } __packed; 220 221 /* Virtual Partition Map [UDF 2.01/2.2.8] */ 222 struct part_map_virt { 223 uint8_t type; 224 uint8_t len; 225 uint8_t reserved[2]; 226 struct regid id; 227 uint16_t vol_seq_num; 228 uint16_t part_num; 229 uint8_t reserved1[24]; 230 } __packed; 231 232 /* Sparable Partition Map [UDF 2.01/2.2.9] */ 233 struct part_map_spare { 234 uint8_t type; 235 uint8_t len; 236 uint8_t reserved[2]; 237 struct regid id; 238 uint16_t vol_seq_num; 239 uint16_t part_num; 240 uint16_t packet_len; 241 uint8_t n_st; /* Number of Sparing Tables */ 242 uint8_t reserved1; 243 uint32_t st_size; 244 uint32_t st_loc[1]; 245 } __packed; 246 247 union udf_pmap { 248 uint8_t data[UDF_PMAP_SIZE]; 249 struct part_map_1 pm1; 250 struct part_map_2 pm2; 251 struct part_map_virt pmv; 252 struct part_map_spare pms; 253 }; 254 255 /* Sparing Map Entry [UDF 2.01/2.2.11] */ 256 struct spare_map_entry { 257 uint32_t org; 258 uint32_t map; 259 } __packed; 260 261 /* Sparing Table [UDF 2.01/2.2.11] */ 262 struct udf_sparing_table { 263 struct desc_tag tag; 264 struct regid id; 265 uint16_t rt_l; /* Relocation Table len */ 266 uint8_t reserved[2]; 267 uint32_t seq_num; 268 struct spare_map_entry entries[1]; 269 } __packed; 270 271 /* Partition Descriptor [3/10.5] */ 272 struct part_desc { 273 struct desc_tag tag; 274 uint32_t seq_num; 275 uint16_t flags; 276 uint16_t part_num; 277 struct regid contents; 278 uint8_t contents_use[128]; 279 uint32_t access_type; 280 uint32_t start_loc; 281 uint32_t part_len; 282 struct regid imp_id; 283 uint8_t imp_use[128]; 284 uint8_t reserved[156]; 285 } __packed; 286 287 /* File Set Descriptor [4/14.1] */ 288 struct fileset_desc { 289 struct desc_tag tag; 290 struct timestamp time; 291 uint16_t ichg_lvl; 292 uint16_t max_ichg_lvl; 293 uint32_t charset_list; 294 uint32_t max_charset_list; 295 uint32_t fileset_num; 296 uint32_t fileset_desc_num; 297 struct charspec logvol_id_charset; 298 char logvol_id[128]; 299 struct charspec fileset_charset; 300 char fileset_id[32]; 301 char copyright_file_id[32]; 302 char abstract_file_id[32]; 303 struct long_ad rootdir_icb; 304 struct regid domain_id; 305 struct long_ad next_ex; 306 struct long_ad streamdir_icb; 307 uint8_t reserved[32]; 308 } __packed; 309 310 /* File Identifier Descriptor [4/14.4] */ 311 struct fileid_desc { 312 struct desc_tag tag; 313 uint16_t file_num; 314 uint8_t file_char; 315 uint8_t l_fi; /* Length of file identifier area */ 316 struct long_ad icb; 317 uint16_t l_iu; /* Length of implementaion use area */ 318 uint8_t data[1]; 319 } __packed; 320 #define UDF_FID_SIZE 38 321 #define UDF_FILE_CHAR_VIS (1 << 0) /* Visible */ 322 #define UDF_FILE_CHAR_DIR (1 << 1) /* Directory */ 323 #define UDF_FILE_CHAR_DEL (1 << 2) /* Deleted */ 324 #define UDF_FILE_CHAR_PAR (1 << 3) /* Parent Directory */ 325 #define UDF_FILE_CHAR_META (1 << 4) /* Stream metadata */ 326 327 /* File Entry [4/14.9] */ 328 struct file_entry { 329 struct desc_tag tag; 330 struct icb_tag icbtag; 331 uint32_t uid; 332 uint32_t gid; 333 uint32_t perm; 334 uint16_t link_cnt; 335 uint8_t rec_format; 336 uint8_t rec_disp_attr; 337 uint32_t rec_len; 338 uint64_t inf_len; 339 uint64_t logblks_rec; 340 struct timestamp atime; 341 struct timestamp mtime; 342 struct timestamp attrtime; 343 uint32_t ckpoint; 344 struct long_ad ex_attr_icb; 345 struct regid imp_id; 346 uint64_t unique_id; 347 uint32_t l_ea; /* Length of extended attribute area */ 348 uint32_t l_ad; /* Length of allocation descriptors */ 349 uint8_t data[1]; 350 } __packed; 351 #define UDF_FENTRY_SIZE 176 352 #define UDF_FENTRY_PERM_USER_MASK 0x07 353 #define UDF_FENTRY_PERM_GRP_MASK 0xE0 354 #define UDF_FENTRY_PERM_OWNER_MASK 0x1C00 355 356 union dscrptr { 357 struct desc_tag tag; 358 struct anchor_vdp avdp; 359 struct vol_desc_ptr vdp; 360 struct pri_vol_desc pvd; 361 struct logvol_desc lvd; 362 struct part_desc pd; 363 struct fileset_desc fsd; 364 struct fileid_desc fid; 365 struct file_entry fe; 366 }; 367 368 /* Useful defines */ 369 370 #define GETICB(ad_type, fentry, offset) \ 371 (struct ad_type *)&fentry->data[offset] 372 373 #define GETICBLEN(ad_type, icb) ((struct ad_type *)(icb))->len
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