sys/fs/udf/ecma167-udf.h

   1 /* $NetBSD: ecma167-udf.h,v 1.12 2009/05/18 20:51:03 reinoud Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2003, 2004, 2005, 2006, 2008, 2009
   5  *      Reinoud Zandijk * <reinoud@NetBSD.org>
   6  * Copyright (c) 2001, 2002 Scott Long <scottl@freebsd.org>
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  *
  31  * Extended and adapted for UDFv2.50+ bij Reinoud Zandijk based on the
  32  * origional by Scott Long.
  33  *
  34  * 20030508 Made some small typo and explainatory comments
  35  * 20030510 Added UDF 2.01 structures
  36  * 20030519 Added/correct comments on multi-partitioned logical volume space
  37  * 20050616 Added pseudo overwrite
  38  * 20050624 Added the missing extended attribute types and `magic values'.
  39  * 20051106 Reworked some implementation use parts
  40  *
  41  */
  42
  43
  44 #ifndef _FS_UDF_ECMA167_UDF_H_
  45 #define _FS_UDF_ECMA167_UDF_H_
  46
  47
  48 /*
  49  * in case of an older gcc versions, define the __packed as explicit
  50  * attribute
  51  */
  52
  53 /*
  54  * You may specify the `aligned' and `transparent_union' attributes either in
  55  * a `typedef' declaration or just past the closing curly brace of a complete
  56  * enum, struct or union type _definition_ and the `packed' attribute only
  57  * past the closing brace of a definition.  You may also specify attributes
  58  * between the enum, struct or union tag and the name of the type rather than
  59  * after the closing brace.
  60 */
  61
  62 #ifndef __packed
  63 #define __packed __attribute__((packed))
  64 #endif
  65
  66
  67 /* ecma167-udf.h */
  68
  69 /* Volume recognition sequence ECMA 167 rev. 3 16.1 */
  70 struct vrs_desc {
  71         uint8_t                 struct_type;
  72         uint8_t                 identifier[5];
  73         uint8_t                 version;
  74         uint8_t                 data[2041];
  75 } __packed;
  76
  77
  78 #define VRS_NSR02               "NSR02"
  79 #define VRS_NSR03               "NSR03"
  80 #define VRS_BEA01               "BEA01"
  81 #define VRS_TEA01               "TEA01"
  82 #define VRS_CD001               "CD001"
  83 #define VRS_CDW02               "CDW02"
  84
  85
  86 /* Structure/definitions/constants a la ECMA 167 rev. 3 */
  87
  88
  89 #define MAX_TAGID_VOLUMES 9
  90 /* Tag identifiers */
  91 enum {
  92         TAGID_SPARING_TABLE =     0,
  93         TAGID_PRI_VOL =           1,
  94         TAGID_ANCHOR =            2,
  95         TAGID_VOL =               3,
  96         TAGID_IMP_VOL =           4,
  97         TAGID_PARTITION =         5,
  98         TAGID_LOGVOL =            6,
  99         TAGID_UNALLOC_SPACE =     7,
 100         TAGID_TERM =              8,
 101         TAGID_LOGVOL_INTEGRITY=   9,
 102         TAGID_FSD =             256,
 103         TAGID_FID =             257,
 104         TAGID_ALLOCEXTENT =     258,
 105         TAGID_INDIRECTENTRY =   259,
 106         TAGID_ICB_TERM =        260,
 107         TAGID_FENTRY =          261,
 108         TAGID_EXTATTR_HDR =     262,
 109         TAGID_UNALL_SP_ENTRY =  263,
 110         TAGID_SPACE_BITMAP =    264,
 111         TAGID_PART_INTEGRETY =  265,
 112         TAGID_EXTFENTRY =       266,
 113         TAGID_MAX =             266
 114 };
 115
 116
 117 enum {
 118         UDF_DOMAIN_FLAG_HARD_WRITE_PROTECT = 1,
 119         UDF_DOMAIN_FLAG_SOFT_WRITE_PROTECT = 2
 120 };
 121
 122
 123 enum {
 124         UDF_ACCESSTYPE_NOT_SPECIFIED   = 0,     /* unknown                              */
 125         UDF_ACCESSTYPE_PSEUDO_OVERWITE = 0,     /* Pseudo overwritable, f.e. BD-R's LOW */
 126         UDF_ACCESSTYPE_READ_ONLY       = 1,     /* really only readable                 */
 127         UDF_ACCESSTYPE_WRITE_ONCE      = 2,     /* write once and you're done           */
 128         UDF_ACCESSTYPE_REWRITEABLE     = 3,     /* may need extra work to rewrite       */
 129         UDF_ACCESSTYPE_OVERWRITABLE    = 4      /* no limits on rewriting; harddisc f.e.*/
 130 };
 131
 132
 133 /* Descriptor tag [3/7.2] */
 134 struct desc_tag {
 135         uint16_t        id;
 136         uint16_t        descriptor_ver;
 137         uint8_t         cksum;
 138         uint8_t         reserved;
 139         uint16_t        serial_num;
 140         uint16_t        desc_crc;
 141         uint16_t        desc_crc_len;
 142         uint32_t        tag_loc;
 143 } __packed;
 144 #define UDF_DESC_TAG_LENGTH 16
 145
 146
 147 /* Recorded Address [4/7.1] */
 148 struct lb_addr {                        /* within partition space */
 149         uint32_t        lb_num;
 150         uint16_t        part_num;
 151 } __packed;
 152
 153
 154 /* Extent Descriptor [3/7.1] */
 155 struct extent_ad {
 156         uint32_t        len;
 157         uint32_t        loc;
 158 } __packed;
 159
 160
 161 /* Short Allocation Descriptor [4/14.14.1] */
 162 struct short_ad {
 163         uint32_t        len;
 164         uint32_t        lb_num;
 165 } __packed;
 166
 167
 168 /* Long Allocation Descriptor [4/14.14.2] */
 169 struct UDF_ADImp_use {
 170         uint16_t        flags;
 171         uint32_t        unique_id;
 172 } __packed;
 173 #define UDF_ADIMP_FLAGS_EXTENT_ERASED 1
 174
 175
 176 struct long_ad {
 177         uint32_t        len;
 178         struct lb_addr  loc;                    /* within a logical volume mapped partition space !! */
 179         union {
 180                 uint8_t bytes[6];
 181                 struct UDF_ADImp_use im_used;
 182         } impl;
 183 } __packed;
 184 #define longad_uniqueid impl.im_used.unique_id
 185
 186
 187 /* Extended Allocation Descriptor [4/14.14.3] ; identifies an extent of allocation descriptors ; also in UDF ? */
 188 struct ext_ad {
 189         uint32_t        ex_len;
 190         uint32_t        rec_len;
 191         uint32_t        inf_len;
 192         struct lb_addr  ex_loc;
 193         uint8_t         reserved[2];
 194 } __packed;
 195
 196
 197 /* ICB : Information Control Block; positioning */
 198 union icb {
 199         struct short_ad s_ad;
 200         struct long_ad  l_ad;
 201         struct ext_ad   e_ad;
 202 };
 203
 204
 205 /* short/long/ext extent have flags encoded in length */
 206 #define UDF_EXT_ALLOCATED              (0<<30)
 207 #define UDF_EXT_FREED                  (1<<30)
 208 #define UDF_EXT_ALLOCATED_BUT_NOT_USED (1<<30)
 209 #define UDF_EXT_FREE                   (2<<30)
 210 #define UDF_EXT_REDIRECT               (3<<30)
 211 #define UDF_EXT_FLAGS(len) ((len) & (3<<30))
 212 #define UDF_EXT_LEN(len)   ((len) & ((1<<30)-1))
 213 #define UDF_EXT_MAXLEN     ((1<<30)-1)
 214
 215
 216 /* Character set spec [1/7.2.1] */
 217 struct charspec {
 218         uint8_t         type;
 219         uint8_t         inf[63];
 220 } __packed;
 221
 222
 223 struct pathcomp {
 224         uint8_t         type;
 225         uint8_t         l_ci;
 226         uint16_t        comp_filever;
 227         uint8_t         ident[256];
 228 } __packed;
 229 #define UDF_PATH_COMP_SIZE 4
 230 #define UDF_PATH_COMP_RESERVED          0
 231 #define UDF_PATH_COMP_ROOT              1
 232 #define UDF_PATH_COMP_MOUNTROOT         2
 233 #define UDF_PATH_COMP_PARENTDIR         3
 234 #define UDF_PATH_COMP_CURDIR            4
 235 #define UDF_PATH_COMP_NAME              5
 236
 237
 238 /* Timestamp [1/7.3] */
 239 struct timestamp {
 240         uint16_t        type_tz;
 241         uint16_t        year;
 242         uint8_t         month;
 243         uint8_t         day;
 244         uint8_t         hour;
 245         uint8_t         minute;
 246         uint8_t         second;
 247         uint8_t         centisec;
 248         uint8_t         hund_usec;
 249         uint8_t         usec;
 250 } __packed;
 251 #define UDF_TIMESTAMP_SIZE 12
 252
 253
 254 /* Entity Identifier [1/7.4] */
 255 #define UDF_REGID_ID_SIZE       23
 256 struct regid {
 257         uint8_t         flags;
 258         uint8_t         id[UDF_REGID_ID_SIZE];
 259         uint8_t         id_suffix[8];
 260 } __packed;
 261
 262
 263 /* ICB Tag [4/14.6] */
 264 struct icb_tag {
 265         uint32_t        prev_num_dirs;
 266         uint16_t        strat_type;
 267         uint8_t         strat_param[2];
 268         uint16_t        max_num_entries;
 269         uint8_t         reserved;
 270         uint8_t         file_type;
 271         struct lb_addr  parent_icb;
 272         uint16_t        flags;
 273 } __packed;
 274 #define UDF_ICB_TAG_FLAGS_ALLOC_MASK    0x03
 275 #define UDF_ICB_SHORT_ALLOC             0x00
 276 #define UDF_ICB_LONG_ALLOC              0x01
 277 #define UDF_ICB_EXT_ALLOC               0x02
 278 #define UDF_ICB_INTERN_ALLOC            0x03
 279
 280 #define UDF_ICB_TAG_FLAGS_DIRORDERED    (1<< 3)
 281 #define UDF_ICB_TAG_FLAGS_NONRELOC      (1<< 4)
 282 #define UDF_ICB_TAG_FLAGS_CONTIGUES     (1<< 9)
 283 #define UDF_ICB_TAG_FLAGS_MULTIPLEVERS  (1<<12)
 284
 285 #define UDF_ICB_TAG_FLAGS_SETUID        (1<< 6)
 286 #define UDF_ICB_TAG_FLAGS_SETGID        (1<< 7)
 287 #define UDF_ICB_TAG_FLAGS_STICKY        (1<< 8)
 288
 289 #define UDF_ICB_FILETYPE_UNKNOWN          0
 290 #define UDF_ICB_FILETYPE_UNALLOCSPACE     1
 291 #define UDF_ICB_FILETYPE_PARTINTEGRITY    2
 292 #define UDF_ICB_FILETYPE_INDIRECTENTRY    3
 293 #define UDF_ICB_FILETYPE_DIRECTORY        4
 294 #define UDF_ICB_FILETYPE_RANDOMACCESS     5
 295 #define UDF_ICB_FILETYPE_BLOCKDEVICE      6
 296 #define UDF_ICB_FILETYPE_CHARDEVICE       7
 297 #define UDF_ICB_FILETYPE_EXTATTRREC       8
 298 #define UDF_ICB_FILETYPE_FIFO             9
 299 #define UDF_ICB_FILETYPE_SOCKET          10
 300 #define UDF_ICB_FILETYPE_TERM            11
 301 #define UDF_ICB_FILETYPE_SYMLINK         12
 302 #define UDF_ICB_FILETYPE_STREAMDIR       13
 303 #define UDF_ICB_FILETYPE_VAT            248
 304 #define UDF_ICB_FILETYPE_REALTIME       249
 305 #define UDF_ICB_FILETYPE_META_MAIN      250
 306 #define UDF_ICB_FILETYPE_META_MIRROR    251
 307 #define UDF_ICB_FILETYPE_META_BITMAP    252
 308
 309
 310 /* Anchor Volume Descriptor Pointer [3/10.2] */
 311 struct anchor_vdp {
 312         struct desc_tag         tag;
 313         struct extent_ad        main_vds_ex;            /* to main volume descriptor set      ; 16 sectors min */
 314         struct extent_ad        reserve_vds_ex;         /* copy of main volume descriptor set ; 16 sectors min */
 315 } __packed;
 316
 317
 318 /* Volume Descriptor Pointer [3/10.3] */
 319 struct vol_desc_ptr {
 320         struct desc_tag         tag;                    /* use for extending the volume descriptor space */
 321         uint32_t                vds_number;
 322         struct extent_ad        next_vds_ex;            /* points to the next block for volume descriptor space */
 323 } __packed;
 324
 325
 326 /* Primary Volume Descriptor [3/10.1] */
 327 struct pri_vol_desc {
 328         struct desc_tag         tag;
 329         uint32_t                seq_num;                /* MAX prevail */
 330         uint32_t                pvd_num;                /* assigned by author; 0 is special as in it may only occure once */
 331         char                    vol_id[32];             /* KEY ; main identifier of this disc */
 332         uint16_t                vds_num;                /* volume descriptor number; i.e. what volume number is it */
 333         uint16_t                max_vol_seq;            /* maximum volume descriptor number known */
 334         uint16_t                ichg_lvl;
 335         uint16_t                max_ichg_lvl;
 336         uint32_t                charset_list;
 337         uint32_t                max_charset_list;
 338         char                    volset_id[128];         /* KEY ; if part of a multi-disc set or a band of volumes */
 339         struct charspec         desc_charset;           /* KEY according to ECMA 167 */
 340         struct charspec         explanatory_charset;
 341         struct extent_ad        vol_abstract;
 342         struct extent_ad        vol_copyright;
 343         struct regid            app_id;
 344         struct timestamp        time;
 345         struct regid            imp_id;
 346         uint8_t                 imp_use[64];
 347         uint32_t                prev_vds_loc;           /* location of predecessor _lov ? */
 348         uint16_t                flags;                  /* bit 0 : if set indicates volume set name is meaningfull */
 349         uint8_t                 reserved[22];
 350 } __packed;
 351
 352
 353 /* UDF specific implementation use part of the implementation use volume descriptor */
 354 struct udf_lv_info {
 355         struct charspec         lvi_charset;
 356         char                    logvol_id[128];
 357
 358         char                    lvinfo1[36];
 359         char                    lvinfo2[36];
 360         char                    lvinfo3[36];
 361
 362         struct regid            impl_id;
 363         uint8_t                 impl_use[128];
 364 } __packed;
 365
 366
 367 /* Implementation use Volume Descriptor */
 368 struct impvol_desc {
 369         struct desc_tag         tag;
 370         uint32_t                seq_num;
 371         struct regid            impl_id;
 372         union {
 373                 struct udf_lv_info      lv_info;
 374                 char                    impl_use[460];
 375         } _impl_use;
 376 } __packed;
 377
 378
 379 /* Logical Volume Descriptor [3/10.6] */
 380 struct logvol_desc {
 381         struct desc_tag         tag;
 382         uint32_t                seq_num;                /* MAX prevail */
 383         struct charspec         desc_charset;           /* KEY */
 384         char                    logvol_id[128];         /* KEY */
 385         uint32_t                lb_size;
 386         struct regid            domain_id;
 387         union {
 388                 struct long_ad  fsd_loc;                /* to fileset descriptor SEQUENCE */
 389                 uint8_t         logvol_content_use[16];
 390         } _lvd_use;
 391         uint32_t                mt_l;                   /* Partition map length */
 392         uint32_t                n_pm;                   /* Number of partition maps */
 393         struct regid            imp_id;
 394         uint8_t                 imp_use[128];
 395         struct extent_ad        integrity_seq_loc;
 396         uint8_t                 maps[1];
 397 } __packed;
 398 #define lv_fsd_loc _lvd_use.fsd_loc
 399
 400 #define UDF_INTEGRITY_OPEN      0
 401 #define UDF_INTEGRITY_CLOSED    1
 402
 403
 404 #define UDF_PMAP_SIZE   64
 405
 406 /* Type 1 Partition Map [3/10.7.2] */
 407 struct part_map_1 {
 408         uint8_t                 type;
 409         uint8_t                 len;
 410         uint16_t                vol_seq_num;
 411         uint16_t                part_num;
 412 } __packed;
 413
 414
 415 /* Type 2 Partition Map [3/10.7.3] */
 416 struct part_map_2 {
 417         uint8_t                 type;
 418         uint8_t                 len;
 419         uint8_t                 reserved[2];
 420         struct regid            part_id;
 421         uint16_t                vol_seq_num;
 422         uint16_t                part_num;
 423         uint8_t                 reserved2[24];
 424 } __packed;
 425
 426
 427 /* Virtual Partition Map [UDF 2.01/2.2.8] */
 428 struct part_map_virt {
 429         uint8_t                 type;
 430         uint8_t                 len;
 431         uint8_t                 reserved[2];
 432         struct regid            id;
 433         uint16_t                vol_seq_num;
 434         uint16_t                part_num;
 435         uint8_t                 reserved1[24];
 436 } __packed;
 437
 438
 439 /* Sparable Partition Map [UDF 2.01/2.2.9] */
 440 struct part_map_spare {
 441         uint8_t                 type;
 442         uint8_t                 len;
 443         uint8_t                 reserved[2];
 444         struct regid            id;
 445         uint16_t                vol_seq_num;
 446         uint16_t                part_num;
 447         uint16_t                packet_len;
 448         uint8_t                 n_st;           /* Number of redundant sparing tables range 1-4 */
 449         uint8_t                 reserved1;
 450         uint32_t                st_size;        /* size of EACH sparing table  */
 451         uint32_t                st_loc[1];      /* locations of sparing tables */
 452 } __packed;
 453
 454
 455 /* Metadata Partition Map [UDF 2.50/2.2.10] */
 456 struct part_map_meta {
 457         uint8_t                 type;
 458         uint8_t                 len;
 459         uint8_t                 reserved[2];
 460         struct regid            id;
 461         uint16_t                vol_seq_num;
 462         uint16_t                part_num;
 463         uint32_t                meta_file_lbn;          /* logical block number for file entry within part_num */
 464         uint32_t                meta_mirror_file_lbn;
 465         uint32_t                meta_bitmap_file_lbn;
 466         uint32_t                alloc_unit_size;        /* allocation unit size in blocks */
 467         uint16_t                alignment_unit_size;    /* alignment nessisary in blocks  */
 468         uint8_t                 flags;
 469         uint8_t                 reserved1[5];
 470 } __packed;
 471 #define METADATA_DUPLICATED     1
 472
 473
 474 union udf_pmap {
 475         uint8_t                 data[UDF_PMAP_SIZE];
 476         struct part_map_1       pm1;
 477         struct part_map_2       pm2;
 478         struct part_map_virt    pmv;
 479         struct part_map_spare   pms;
 480         struct part_map_meta    pmm;
 481 };
 482
 483
 484 /* Sparing Map Entry [UDF 2.01/2.2.11] */
 485 struct spare_map_entry {
 486         uint32_t                org;                    /* partition relative address  */
 487         uint32_t                map;                    /* absolute disc address (!) can be in partition, but doesn't have to be */
 488 } __packed;
 489
 490
 491 /* Sparing Table [UDF 2.01/2.2.11] */
 492 struct udf_sparing_table {
 493         struct desc_tag         tag;
 494         struct regid            id;
 495         uint16_t                rt_l;                   /* Relocation Table len */
 496         uint8_t                 reserved[2];
 497         uint32_t                seq_num;
 498         struct spare_map_entry  entries[1];
 499 } __packed;
 500
 501
 502 #define UDF_NO_PREV_VAT         0xffffffff
 503 /* UDF 1.50 VAT suffix [UDF 2.2.10 (UDF 1.50 spec)] */
 504 struct udf_oldvat_tail {
 505         struct regid            id;                     /* "*UDF Virtual Alloc Tbl" */
 506         uint32_t                prev_vat;
 507 } __packed;
 508
 509
 510 /* VAT table [UDF 2.0.1/2.2.10] */
 511 struct udf_vat {
 512         uint16_t                header_len;
 513         uint16_t                impl_use_len;
 514         char                    logvol_id[128];         /* newer version of the LVD one */
 515         uint32_t                prev_vat;
 516         uint32_t                num_files;
 517         uint32_t                num_directories;
 518         uint16_t                min_udf_readver;
 519         uint16_t                min_udf_writever;
 520         uint16_t                max_udf_writever;
 521         uint16_t                reserved;
 522         uint8_t                 data[1];                /* impl.use followed by VAT entries (uint32_t) */
 523 } __packed;
 524
 525
 526 /* Space bitmap descriptor as found in the partition header descriptor */
 527 struct space_bitmap_desc {
 528         struct desc_tag         tag;                    /* TagId 264                    */
 529         uint32_t                num_bits;               /* number of bits               */
 530         uint32_t                num_bytes;              /* bytes that contain it        */
 531         uint8_t                 data[1];
 532 } __packed;
 533
 534
 535 /* Unalloc space entry as found in the partition header descriptor */
 536 struct space_entry_desc {
 537         struct desc_tag         tag;                    /* TagId 263                    */
 538         struct icb_tag          icbtag;                 /* type 1                       */
 539         uint32_t                l_ad;                   /* in bytes                     */
 540         uint8_t                 entry[1];
 541 } __packed;
 542
 543
 544 /* Partition header descriptor; in the contents_use of part_desc */
 545 struct part_hdr_desc {
 546         struct short_ad         unalloc_space_table;
 547         struct short_ad         unalloc_space_bitmap;
 548         struct short_ad         part_integrety_table;   /* has to be ZERO for UDF */
 549         struct short_ad         freed_space_table;
 550         struct short_ad         freed_space_bitmap;
 551         uint8_t                 reserved[88];
 552 } __packed;
 553
 554
 555 /* Partition Descriptor [3/10.5] */
 556 struct part_desc {
 557         struct desc_tag         tag;
 558         uint32_t                seq_num;                /* MAX prevailing */
 559         uint16_t                flags;                  /* bit 0 : if set the space is allocated */
 560         uint16_t                part_num;               /* KEY */
 561         struct regid            contents;
 562         union {
 563                 struct part_hdr_desc    part_hdr;
 564                 uint8_t                 contents_use[128];
 565         } _impl_use;
 566         uint32_t                access_type;            /* R/W, WORM etc. */
 567         uint32_t                start_loc;              /* start of partition with given length */
 568         uint32_t                part_len;
 569         struct regid            imp_id;
 570         uint8_t                 imp_use[128];
 571         uint8_t                 reserved[156];
 572 } __packed;
 573 #define pd_part_hdr _impl_use.part_hdr
 574 #define UDF_PART_FLAG_ALLOCATED         1
 575
 576
 577 /* Unallocated Space Descriptor (UDF 2.01/2.2.5) */
 578 struct unalloc_sp_desc {
 579         struct desc_tag         tag;
 580         uint32_t                seq_num;        /* MAX prevailing */
 581         uint32_t                alloc_desc_num;
 582         struct extent_ad        alloc_desc[1];
 583 } __packed;
 584
 585
 586 /* Logical Volume Integrity Descriptor [3/30.10] */
 587 struct logvolhdr {
 588         uint64_t                next_unique_id;
 589         /* rest reserved */
 590 } __packed;
 591
 592
 593 struct udf_logvol_info {
 594         struct regid            impl_id;
 595         uint32_t                num_files;
 596         uint32_t                num_directories;
 597         uint16_t                min_udf_readver;
 598         uint16_t                min_udf_writever;
 599         uint16_t                max_udf_writever;
 600 } __packed;
 601
 602
 603 struct logvol_int_desc {
 604         struct desc_tag         tag;
 605         struct timestamp        time;
 606         uint32_t                integrity_type;
 607         struct extent_ad        next_extent;
 608         union {
 609                 struct logvolhdr  logvolhdr;
 610                 int8_t            reserved[32];
 611         } _impl_use;
 612         uint32_t                num_part;
 613         uint32_t                l_iu;
 614         uint32_t                tables[1];      /* Freespace table, Sizetable, Implementation use */
 615 } __packed;
 616 #define lvint_next_unique_id _impl_use.logvolhdr.next_unique_id
 617
 618
 619 /* File Set Descriptor [4/14.1] */
 620 struct fileset_desc {
 621         struct desc_tag         tag;
 622         struct timestamp        time;
 623         uint16_t                ichg_lvl;
 624         uint16_t                max_ichg_lvl;
 625         uint32_t                charset_list;
 626         uint32_t                max_charset_list;
 627         uint32_t                fileset_num;                    /* key! */
 628         uint32_t                fileset_desc_num;
 629         struct charspec         logvol_id_charset;
 630         char                    logvol_id[128];                 /* for recovery                 */
 631         struct charspec         fileset_charset;
 632         char                    fileset_id[32];                 /* Mountpoint !!                */
 633         char                    copyright_file_id[32];
 634         char                    abstract_file_id[32];
 635         struct long_ad          rootdir_icb;                    /* to rootdir; icb->virtual ?   */
 636         struct regid            domain_id;
 637         struct long_ad          next_ex;                        /* to the next fileset_desc extent */
 638         struct long_ad          streamdir_icb;                  /* streamdir; needed?           */
 639         uint8_t                 reserved[32];
 640 } __packed;
 641
 642
 643 /* File Identifier Descriptor [4/14.4] */
 644 struct fileid_desc {
 645         struct desc_tag         tag;
 646         uint16_t                file_version_num;
 647         uint8_t                 file_char;
 648         uint8_t                 l_fi;   /* Length of file identifier area */
 649         struct long_ad          icb;
 650         uint16_t                l_iu;   /* Length of implementation use area */
 651         uint8_t                 data[0];
 652 } __packed;
 653 #define UDF_FID_SIZE    38
 654 #define UDF_FILE_CHAR_VIS       (1 << 0) /* Invisible */
 655 #define UDF_FILE_CHAR_DIR       (1 << 1) /* Directory */
 656 #define UDF_FILE_CHAR_DEL       (1 << 2) /* Deleted */
 657 #define UDF_FILE_CHAR_PAR       (1 << 3) /* Parent Directory */
 658 #define UDF_FILE_CHAR_META      (1 << 4) /* Stream metadata */
 659
 660
 661 /* Extended attributes [4/14.10.1] */
 662 struct extattrhdr_desc {
 663         struct desc_tag         tag;
 664         uint32_t                impl_attr_loc;  /* offsets within this descriptor */
 665         uint32_t                appl_attr_loc;  /* ditto */
 666 } __packed;
 667 #define UDF_IMPL_ATTR_LOC_NOT_PRESENT 0xffffffff
 668 #define UDF_APPL_ATTR_LOC_NOT_PRESENT 0xffffffff
 669
 670
 671 /* Extended attribute entry [4/48.10.2] */
 672 struct extattr_entry {
 673         uint32_t                type;
 674         uint8_t                 subtype;
 675         uint8_t                 reserved[3];
 676         uint32_t                a_l;
 677 } __packed;
 678
 679
 680 /* Extended attribute entry; type 2048 [4/48.10.8] */
 681 struct impl_extattr_entry {
 682         struct extattr_entry    hdr;
 683         uint32_t                iu_l;
 684         struct regid            imp_id;
 685         uint8_t                 data[1];
 686 } __packed;
 687
 688
 689 /* Extended attribute entry; type 65 536 [4/48.10.9] */
 690 struct appl_extattr_entry {
 691         struct extattr_entry    hdr;
 692         uint32_t                au_l;
 693         struct regid            appl_id;
 694         uint8_t                 data[1];
 695 } __packed;
 696
 697
 698 /* File Times attribute entry; type 5 or type 6 [4/48.10.5], [4/48.10.6] */
 699 struct filetimes_extattr_entry {
 700         struct extattr_entry    hdr;
 701         uint32_t                d_l;            /* length of times[] data following */
 702         uint32_t                existence;      /* bitmask */
 703         struct timestamp        times[1];       /* in order of assending bits */
 704 } __packed;
 705 #define UDF_FILETIMES_ATTR_NO   5
 706 #define UDF_FILETIMES_FILE_CREATION     1
 707 #define UDF_FILETIMES_FILE_DELETION     4
 708 #define UDF_FILETIMES_FILE_EFFECTIVE    8
 709 #define UDF_FILETIMES_FILE_BACKUPED     16
 710 #define UDF_FILETIMES_ATTR_SIZE(no)     (20 + (no)*sizeof(struct timestamp))
 711
 712
 713 /* Device Specification Extended Attribute [4/4.10.7] */
 714 struct device_extattr_entry {
 715         struct extattr_entry    hdr;
 716         uint32_t                iu_l;           /* length of implementation use */
 717         uint32_t                major;
 718         uint32_t                minor;
 719         uint8_t                 data[1];        /* UDF: if nonzero length, contain developer ID regid */
 720 } __packed;
 721 #define UDF_DEVICESPEC_ATTR_NO  12
 722
 723
 724 /* VAT LV extension Extended Attribute [UDF 3.3.4.5.1.3] 1.50 errata */
 725 struct vatlvext_extattr_entry {
 726         uint64_t                unique_id_chk;  /* needs to be copy of ICB's */
 727         uint32_t                num_files;
 728         uint32_t                num_directories;
 729         char                    logvol_id[128]; /* replaces logvol name */
 730 } __packed;
 731
 732
 733 /* File Entry [4/14.9] */
 734 struct file_entry {
 735         struct desc_tag         tag;
 736         struct icb_tag          icbtag;
 737         uint32_t                uid;
 738         uint32_t                gid;
 739         uint32_t                perm;
 740         uint16_t                link_cnt;
 741         uint8_t                 rec_format;
 742         uint8_t                 rec_disp_attr;
 743         uint32_t                rec_len;
 744         uint64_t                inf_len;
 745         uint64_t                logblks_rec;
 746         struct timestamp        atime;
 747         struct timestamp        mtime;
 748         struct timestamp        attrtime;
 749         uint32_t                ckpoint;
 750         struct long_ad          ex_attr_icb;
 751         struct regid            imp_id;
 752         uint64_t                unique_id;
 753         uint32_t                l_ea;   /* Length of extended attribute area */
 754         uint32_t                l_ad;   /* Length of allocation descriptors */
 755         uint8_t                 data[1];
 756 } __packed;
 757 #define UDF_FENTRY_SIZE 176
 758 #define UDF_FENTRY_PERM_USER_MASK       0x07
 759 #define UDF_FENTRY_PERM_GRP_MASK        0xE0
 760 #define UDF_FENTRY_PERM_OWNER_MASK      0x1C00
 761
 762
 763 /* Extended File Entry [4/48.17] */
 764 struct extfile_entry {
 765         struct desc_tag         tag;
 766         struct icb_tag          icbtag;
 767         uint32_t                uid;
 768         uint32_t                gid;
 769         uint32_t                perm;
 770         uint16_t                link_cnt;
 771         uint8_t                 rec_format;
 772         uint8_t                 rec_disp_attr;
 773         uint32_t                rec_len;
 774         uint64_t                inf_len;
 775         uint64_t                obj_size;
 776         uint64_t                logblks_rec;
 777         struct timestamp        atime;
 778         struct timestamp        mtime;
 779         struct timestamp        ctime;
 780         struct timestamp        attrtime;
 781         uint32_t                ckpoint;
 782         uint32_t                reserved1;
 783         struct long_ad          ex_attr_icb;
 784         struct long_ad          streamdir_icb;
 785         struct regid            imp_id;
 786         uint64_t                unique_id;
 787         uint32_t                l_ea;   /* Length of extended attribute area */
 788         uint32_t                l_ad;   /* Length of allocation descriptors */
 789         uint8_t                 data[1];
 790 } __packed;
 791 #define UDF_EXTFENTRY_SIZE      216
 792
 793
 794 /* Indirect entry [ecma 48.7] */
 795 struct indirect_entry {
 796         struct desc_tag         tag;
 797         struct icb_tag          icbtag;
 798         struct long_ad          indirect_icb;
 799 } __packed;
 800
 801
 802 /* Allocation extent descriptor [ecma 48.5] */
 803 struct alloc_ext_entry {
 804         struct desc_tag         tag;
 805         uint32_t                prev_entry;
 806         uint32_t                l_ad;
 807         uint8_t                 data[1];
 808 } __packed;
 809
 810
 811 union dscrptr {
 812         struct desc_tag          tag;
 813         struct anchor_vdp        avdp;
 814         struct vol_desc_ptr      vdp;
 815         struct pri_vol_desc      pvd;
 816         struct logvol_desc       lvd;
 817         struct unalloc_sp_desc   usd;
 818         struct logvol_int_desc   lvid;
 819         struct impvol_desc       ivd;
 820         struct part_desc         pd;
 821         struct fileset_desc      fsd;
 822         struct fileid_desc       fid;
 823         struct file_entry        fe;
 824         struct extfile_entry     efe;
 825         struct extattrhdr_desc   eahd;
 826         struct indirect_entry    inde;
 827         struct alloc_ext_entry   aee;
 828         struct udf_sparing_table spt;
 829         struct space_bitmap_desc sbd;
 830         struct space_entry_desc  sed;
 831 };
 832
 833
 834 #endif /* !_FS_UDF_ECMA167_UDF_H_ */
 835