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NetBSD/sys/fs/udf/ecma167-udf.h

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/* $NetBSD: ecma167-udf.h,v 1.6 2007/01/04 04:15:43 reinoud Exp $ */
/*-
* Copyright (c) 2003, 2004, 2005, 2006 Reinoud Zandijk <reinoud@netbsd.org>
* Copyright (c) 2001, 2002 Scott Long <scottl@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*
* Extended and adapted for UDFv2.50+ bij Reinoud Zandijk based on the
* origional by Scott Long.
*
* 20030508 Made some small typo and explainatory comments
* 20030510 Added UDF 2.01 structures
* 20030519 Added/correct comments on multi-partitioned logical volume space
* 20050616 Added pseudo overwrite
* 20050624 Added the missing extended attribute types and `magic values'.
* 20051106 Reworked some implementation use parts
*
*/
#ifndef _FS_UDF_ECMA167_UDF_H_
#define _FS_UDF_ECMA167_UDF_H_
/*
* in case of an older gcc versions, define the __packed as explicit
* attribute
*/
/*
* You may specify the `aligned' and `transparent_union' attributes either in
* a `typedef' declaration or just past the closing curly brace of a complete
* enum, struct or union type _definition_ and the `packed' attribute only
* past the closing brace of a definition. You may also specify attributes
* between the enum, struct or union tag and the name of the type rather than
* after the closing brace.
*/
#ifndef __packed
#define __packed __attribute__((packed))
#endif
/* ecma167-udf.h */
/* Volume recognition sequence ECMA 167 rev. 3 16.1 */
struct vrs_desc {
uint8_t struct_type;
uint8_t identifier[5];
uint8_t version;
uint8_t data[2041];
} __packed;
#define VRS_NSR02 "NSR02"
#define VRS_NSR03 "NSR03"
#define VRS_BEA01 "BEA01"
#define VRS_TEA01 "TEA01"
#define VRS_CD001 "CD001"
#define VRS_CDW02 "CDW02"
/* Structure/definitions/constants a la ECMA 167 rev. 3 */
#define MAX_TAGID_VOLUMES 9
/* Tag identifiers */
enum {
TAGID_SPARING_TABLE = 0,
TAGID_PRI_VOL = 1,
TAGID_ANCHOR = 2,
TAGID_VOL = 3,
TAGID_IMP_VOL = 4,
TAGID_PARTITION = 5,
TAGID_LOGVOL = 6,
TAGID_UNALLOC_SPACE = 7,
TAGID_TERM = 8,
TAGID_LOGVOL_INTEGRITY= 9,
TAGID_FSD = 256,
TAGID_FID = 257,
TAGID_ALLOCEXTENT = 258,
TAGID_INDIRECT_ENTRY = 259,
TAGID_ICB_TERM = 260,
TAGID_FENTRY = 261,
TAGID_EXTATTR_HDR = 262,
TAGID_UNALL_SP_ENTRY = 263,
TAGID_SPACE_BITMAP = 264,
TAGID_PART_INTEGRETY = 265,
TAGID_EXTFENTRY = 266,
TAGID_MAX = 266
};
enum {
UDF_DOMAIN_FLAG_HARD_WRITE_PROTECT = 1,
UDF_DOMAIN_FLAG_SOFT_WRITE_PROTECT = 2
};
enum {
UDF_ACCESSTYPE_NOT_SPECIFIED = 0, /* unknown */
UDF_ACCESSTYPE_PSEUDO_OVERWITE = 0, /* Pseudo overwritable, f.e. BD-R's LOW */
UDF_ACCESSTYPE_READ_ONLY = 1, /* really only readable */
UDF_ACCESSTYPE_WRITE_ONCE = 2, /* write once and you're done */
UDF_ACCESSTYPE_REWRITEABLE = 3, /* may need extra work to rewrite */
UDF_ACCESSTYPE_OVERWRITABLE = 4 /* no limits on rewriting; harddisc f.e.*/
};
/* Descriptor tag [3/7.2] */
struct desc_tag {
uint16_t id;
uint16_t descriptor_ver;
uint8_t cksum;
uint8_t reserved;
uint16_t serial_num;
uint16_t desc_crc;
uint16_t desc_crc_len;
uint32_t tag_loc;
} __packed;
#define UDF_DESC_TAG_LENGTH 16
/* Recorded Address [4/7.1] */
struct lb_addr { /* within partition space */
uint32_t lb_num;
uint16_t part_num;
} __packed;
/* Extent Descriptor [3/7.1] */
struct extent_ad {
uint32_t len;
uint32_t loc;
} __packed;
/* Short Allocation Descriptor [4/14.14.1] */
struct short_ad {
uint32_t len;
uint32_t lb_num;
} __packed;
/* Long Allocation Descriptor [4/14.14.2] */
struct UDF_ADImp_use {
uint16_t flags;
uint32_t unique_id;
} __packed;
#define UDF_ADIMP_FLAGS_EXTENT_ERASED 1
struct long_ad {
uint32_t len;
struct lb_addr loc; /* within a logical volume mapped partition space !! */
union {
uint8_t bytes[6];
struct UDF_ADImp_use im_used;
} __packed impl;
} __packed;
#define longad_uniqueid impl.im_used.unique_id
/* Extended Allocation Descriptor [4/14.14.3] ; identifies an extent of allocation descriptors ; also in UDF ? */
struct ext_ad {
uint32_t ex_len;
uint32_t rec_len;
uint32_t inf_len;
struct lb_addr ex_loc;
uint8_t reserved[2];
} __packed;
/* ICB : Information Control Block; positioning */
union icb {
struct short_ad s_ad;
struct long_ad l_ad;
struct ext_ad e_ad;
} __packed;
/* short/long/ext extent have flags encoded in length */
#define UDF_EXT_ALLOCATED (0<<30)
#define UDF_EXT_FREED (1<<30)
#define UDF_EXT_ALLOCATED_BUT_NOT_USED (1<<30)
#define UDF_EXT_FREE (2<<30)
#define UDF_EXT_REDIRECT (3<<30)
#define UDF_EXT_FLAGS(len) ((len) & (3<<30))
#define UDF_EXT_LEN(len) ((len) & ((1<<30)-1))
/* Character set spec [1/7.2.1] */
struct charspec {
uint8_t type;
uint8_t inf[63];
} __packed;
/* Timestamp [1/7.3] */
struct timestamp {
uint16_t type_tz;
uint16_t year;
uint8_t month;
uint8_t day;
uint8_t hour;
uint8_t minute;
uint8_t second;
uint8_t centisec;
uint8_t hund_usec;
uint8_t usec;
} __packed;
/* Entity Identifier [1/7.4] */
#define UDF_REGID_ID_SIZE 23
struct regid {
uint8_t flags;
uint8_t id[UDF_REGID_ID_SIZE];
uint8_t id_suffix[8];
} __packed;
/* ICB Tag [4/14.6] */
struct icb_tag {
uint32_t prev_num_dirs;
uint16_t strat_type;
uint8_t strat_param[2];
uint16_t max_num_entries;
uint8_t reserved;
uint8_t file_type;
struct lb_addr parent_icb;
uint16_t flags;
} __packed;
#define UDF_ICB_TAG_FLAGS_ALLOC_MASK 0x03
#define UDF_ICB_SHORT_ALLOC 0x00
#define UDF_ICB_LONG_ALLOC 0x01
#define UDF_ICB_EXT_ALLOC 0x02
#define UDF_ICB_INTERN_ALLOC 0x03
#define UDF_ICB_TAG_FLAGS_DIRORDERED (1<< 3)
#define UDF_ICB_TAG_FLAGS_NONRELOC (1<< 4)
#define UDF_ICB_TAG_FLAGS_CONTIGUES (1<< 9)
#define UDF_ICB_TAG_FLAGS_MULTIPLEVERS (1<<12)
#define UDF_ICB_TAG_FLAGS_SETUID (1<< 6)
#define UDF_ICB_TAG_FLAGS_SETGID (1<< 7)
#define UDF_ICB_TAG_FLAGS_STICKY (1<< 8)
#define UDF_ICB_FILETYPE_UNKNOWN 0
#define UDF_ICB_FILETYPE_UNALLOCSPACE 1
#define UDF_ICB_FILETYPE_PARTINTEGRITY 2
#define UDF_ICB_FILETYPE_INDIRECTENTRY 3
#define UDF_ICB_FILETYPE_DIRECTORY 4
#define UDF_ICB_FILETYPE_RANDOMACCESS 5
#define UDF_ICB_FILETYPE_BLOCKDEVICE 6
#define UDF_ICB_FILETYPE_CHARDEVICE 7
#define UDF_ICB_FILETYPE_EXTATTRREC 8
#define UDF_ICB_FILETYPE_FIFO 9
#define UDF_ICB_FILETYPE_SOCKET 10
#define UDF_ICB_FILETYPE_TERM 11
#define UDF_ICB_FILETYPE_SYMLINK 12
#define UDF_ICB_FILETYPE_STREAMDIR 13
#define UDF_ICB_FILETYPE_VAT 248
#define UDF_ICB_FILETYPE_REALTIME 249
#define UDF_ICB_FILETYPE_META_MAIN 250
#define UDF_ICB_FILETYPE_META_MIRROR 251
/* Anchor Volume Descriptor Pointer [3/10.2] */
struct anchor_vdp {
struct desc_tag tag;
struct extent_ad main_vds_ex; /* to main volume descriptor set ; 16 sectors min */
struct extent_ad reserve_vds_ex; /* copy of main volume descriptor set ; 16 sectors min */
} __packed;
/* Volume Descriptor Pointer [3/10.3] */
struct vol_desc_ptr {
struct desc_tag tag; /* use for extending the volume descriptor space */
uint32_t vds_number;
struct extent_ad next_vds_ex; /* points to the next block for volume descriptor space */
} __packed;
/* Primary Volume Descriptor [3/10.1] */
struct pri_vol_desc {
struct desc_tag tag;
uint32_t seq_num; /* MAX prevail */
uint32_t pvd_num; /* assigned by author; 0 is special as in it may only occure once */
char vol_id[32]; /* KEY ; main identifier of this disc */
uint16_t vds_num; /* volume descriptor number; i.e. what volume number is it */
uint16_t max_vol_seq; /* maximum volume descriptor number known */
uint16_t ichg_lvl;
uint16_t max_ichg_lvl;
uint32_t charset_list;
uint32_t max_charset_list;
char volset_id[128]; /* KEY ; if part of a multi-disc set or a band of volumes */
struct charspec desc_charset; /* KEY according to ECMA 167 */
struct charspec explanatory_charset;
struct extent_ad vol_abstract;
struct extent_ad vol_copyright;
struct regid app_id;
struct timestamp time;
struct regid imp_id;
uint8_t imp_use[64];
uint32_t prev_vds_loc; /* location of predecessor _lov ? */
uint16_t flags; /* bit 0 : if set indicates volume set name is meaningfull */
uint8_t reserved[22];
} __packed;
/* UDF specific implementation use part of the implementation use volume descriptor */
struct udf_lv_info {
struct charspec lvi_charset;
char logvol_id[128];
char lvinfo1[36];
char lvinfo2[36];
char lvinfo3[36];
struct regid impl_id;
uint8_t impl_use[128];
} __packed;
/* Implementation use Volume Descriptor */
struct impvol_desc {
struct desc_tag tag;
uint32_t seq_num;
struct regid impl_id;
union {
struct udf_lv_info lv_info;
char impl_use[460];
} __packed _impl_use;
} __packed;
/* Logical Volume Descriptor [3/10.6] */
struct logvol_desc {
struct desc_tag tag;
uint32_t seq_num; /* MAX prevail */
struct charspec desc_charset; /* KEY */
char logvol_id[128]; /* KEY */
uint32_t lb_size;
struct regid domain_id;
union {
struct long_ad fsd_loc; /* to fileset descriptor SEQUENCE */
uint8_t logvol_content_use[16];
} __packed _lvd_use;
uint32_t mt_l; /* Partition map length */
uint32_t n_pm; /* Number of partition maps */
struct regid imp_id;
uint8_t imp_use[128];
struct extent_ad integrity_seq_loc;
uint8_t maps[1];
} __packed;
#define lv_fsd_loc _lvd_use.fsd_loc
#define UDF_INTEGRITY_OPEN 0
#define UDF_INTEGRITY_CLOSED 1
#define UDF_PMAP_SIZE 64
/* Type 1 Partition Map [3/10.7.2] */
struct part_map_1 {
uint8_t type;
uint8_t len;
uint16_t vol_seq_num;
uint16_t part_num;
} __packed;
/* Type 2 Partition Map [3/10.7.3] */
struct part_map_2 {
uint8_t type;
uint8_t len;
uint8_t reserved[2];
struct regid part_id;
uint16_t vol_seq_num;
uint16_t part_num;
uint8_t reserved2[24];
} __packed;
/* Virtual Partition Map [UDF 2.01/2.2.8] */
struct part_map_virt {
uint8_t type;
uint8_t len;
uint8_t reserved[2];
struct regid id;
uint16_t vol_seq_num;
uint16_t part_num;
uint8_t reserved1[24];
} __packed;
/* Sparable Partition Map [UDF 2.01/2.2.9] */
struct part_map_spare {
uint8_t type;
uint8_t len;
uint8_t reserved[2];
struct regid id;
uint16_t vol_seq_num;
uint16_t part_num;
uint16_t packet_len;
uint8_t n_st; /* Number of redundant sparing tables range 1-4 */
uint8_t reserved1;
uint32_t st_size; /* size of EACH sparing table */
uint32_t st_loc[1]; /* locations of sparing tables */
} __packed;
/* Metadata Partition Map [UDF 2.50/2.2.10] */
struct part_map_meta {
uint8_t type;
uint8_t len;
uint8_t reserved[2];
struct regid id;
uint16_t vol_seq_num;
uint16_t part_num;
uint32_t meta_file_lbn; /* logical block number for file entry within part_num */
uint32_t meta_mirror_file_lbn;
uint32_t meta_bitmap_file_lbn;
uint32_t alloc_unit_size; /* allocation unit size in blocks */
uint16_t alignment_unit_size; /* alignment nessisary in blocks */
uint8_t flags;
uint8_t reserved1[5];
} __packed;
#define METADATA_DUPLICATED 1
union udf_pmap {
uint8_t data[UDF_PMAP_SIZE];
struct part_map_1 pm1;
struct part_map_2 pm2;
struct part_map_virt pmv;
struct part_map_spare pms;
struct part_map_meta pmm;
} __packed;
/* Sparing Map Entry [UDF 2.01/2.2.11] */
struct spare_map_entry {
uint32_t org; /* partion relative address */
uint32_t map; /* absolute disc address (!) can be in partion, but doesn't have to be */
} __packed;
/* Sparing Table [UDF 2.01/2.2.11] */
struct udf_sparing_table {
struct desc_tag tag;
struct regid id;
uint16_t rt_l; /* Relocation Table len */
uint8_t reserved[2];
uint32_t seq_num;
struct spare_map_entry entries[1];
} __packed;
#define UDF_NO_PREV_VAT 0xffffffff
/* UDF 1.50 VAT suffix [UDF 2.2.10 (UDF 1.50 spec)] */
struct udf_oldvat_tail {
struct regid id; /* "*UDF Virtual Alloc Tbl" */
uint32_t prev_vat;
} __packed;
/* VAT table [UDF 2.0.1/2.2.10] */
struct udf_vat {
uint16_t header_len;
uint16_t impl_use_len;
char logvol_id[128]; /* newer version of the LVD one */
uint32_t prev_vat;
uint32_t num_files;
uint32_t num_directories;
uint16_t min_udf_readver;
uint16_t min_udf_writever;
uint16_t max_udf_writever;
uint16_t reserved;
uint8_t data[1]; /* impl.use followed by VAT entries (uint32_t) */
} __packed;
/* Space bitmap descriptor as found in the partition header descriptor */
struct space_bitmap_desc {
struct desc_tag tag; /* TagId 264 */
uint32_t num_bits; /* number of bits */
uint32_t num_bytes; /* bytes that contain it */
uint8_t data[1];
} __packed;
/* Unalloc space entry as found in the partition header descriptor */
struct space_entry_desc {
struct desc_tag tag; /* TagId 263 */
struct icb_tag icbtag; /* type 1 */
uint32_t l_ad; /* in bytes */
uint8_t entry[1];
} __packed;
/* Partition header descriptor; in the contents_use of part_desc */
struct part_hdr_desc {
struct short_ad unalloc_space_table;
struct short_ad unalloc_space_bitmap;
struct short_ad part_integrety_table; /* has to be ZERO for UDF */
struct short_ad freed_space_table;
struct short_ad freed_space_bitmap;
uint8_t reserved[88];
} __packed;
/* Partition Descriptor [3/10.5] */
struct part_desc {
struct desc_tag tag;
uint32_t seq_num; /* MAX prevailing */
uint16_t flags; /* bit 0 : if set the space is allocated */
uint16_t part_num; /* KEY */
struct regid contents;
union {
struct part_hdr_desc part_hdr;
uint8_t contents_use[128];
} _impl_use;
uint32_t access_type; /* R/W, WORM etc. */
uint32_t start_loc; /* start of partion with given length */
uint32_t part_len;
struct regid imp_id;
uint8_t imp_use[128];
uint8_t reserved[156];
} __packed;
#define pd_part_hdr _impl_use.part_hdr
#define UDF_PART_FLAG_ALLOCATED 1
/* Unallocated Space Descriptor (UDF 2.01/2.2.5) */
struct unalloc_sp_desc {
struct desc_tag tag;
uint32_t seq_num; /* MAX prevailing */
uint32_t alloc_desc_num;
struct extent_ad alloc_desc[1];
} __packed;
/* Logical Volume Integrity Descriptor [3/30.10] */
struct logvolhdr {
uint64_t next_unique_id;
/* rest reserved */
} __packed;
struct udf_logvol_info {
struct regid impl_id;
uint32_t num_files;
uint32_t num_directories;
uint16_t min_udf_readver;
uint16_t min_udf_writever;
uint16_t max_udf_writever;
} __packed;
struct logvol_int_desc {
struct desc_tag tag;
struct timestamp time;
uint32_t integrity_type;
struct extent_ad next_extent;
union {
struct logvolhdr logvolhdr;
int8_t reserved[32];
} __packed _impl_use;
uint32_t num_part;
uint32_t l_iu;
uint32_t tables[1]; /* Freespace table, Sizetable, Implementation use */
} __packed;
#define lvint_next_unique_id _impl_use.logvolhdr.next_unique_id
/* File Set Descriptor [4/14.1] */
struct fileset_desc {
struct desc_tag tag;
struct timestamp time;
uint16_t ichg_lvl;
uint16_t max_ichg_lvl;
uint32_t charset_list;
uint32_t max_charset_list;
uint32_t fileset_num; /* key! */
uint32_t fileset_desc_num;
struct charspec logvol_id_charset;
char logvol_id[128]; /* for recovery */
struct charspec fileset_charset;
char fileset_id[32]; /* Mountpoint !! */
char copyright_file_id[32];
char abstract_file_id[32];
struct long_ad rootdir_icb; /* to rootdir; icb->virtual ? */
struct regid domain_id;
struct long_ad next_ex; /* to the next fileset_desc extent */
struct long_ad streamdir_icb; /* streamdir; needed? */
uint8_t reserved[32];
} __packed;
/* File Identifier Descriptor [4/14.4] */
struct fileid_desc {
struct desc_tag tag;
uint16_t file_version_num;
uint8_t file_char;
uint8_t l_fi; /* Length of file identifier area */
struct long_ad icb;
uint16_t l_iu; /* Length of implementation use area */
uint8_t data[1];
} __packed;
#define UDF_FID_SIZE 38
#define UDF_FILE_CHAR_VIS (1 << 0) /* Invisible */
#define UDF_FILE_CHAR_DIR (1 << 1) /* Directory */
#define UDF_FILE_CHAR_DEL (1 << 2) /* Deleted */
#define UDF_FILE_CHAR_PAR (1 << 3) /* Parent Directory */
#define UDF_FILE_CHAR_META (1 << 4) /* Stream metadata */
/* Extended attributes [4/14.10.1] */
struct extattrhdr_desc {
struct desc_tag tag;
uint32_t impl_attr_loc; /* offsets within this descriptor */
uint32_t appl_attr_loc; /* ditto */
} __packed;
#define UDF_IMPL_ATTR_LOC_NOT_PRESENT 0xffffffff
#define UDF_APPL_ATTR_LOC_NOT_PRESENT 0xffffffff
/* Extended attribute entry [4/48.10.2] */
struct extattr_entry {
uint32_t type;
uint8_t subtype;
uint8_t reserved[3];
uint32_t a_l;
} __packed;
/* Extended attribute entry; type 2048 [4/48.10.8] */
struct impl_extattr_entry {
struct extattr_entry hdr;
uint32_t iu_l;
struct regid imp_id;
uint8_t data[1];
} __packed;
/* Extended attribute entry; type 65 536 [4/48.10.9] */
struct appl_extattr_entry {
struct extattr_entry hdr;
uint32_t au_l;
struct regid appl_id;
uint8_t data[1];
} __packed;
/* File Times attribute entry; type 5 or type 6 [4/48.10.5], [4/48.10.6] */
struct filetimes_extattr_entry {
struct extattr_entry hdr;
uint32_t d_l; /* length of times[] data following */
uint32_t existence; /* bitmask */
struct timestamp times[1]; /* in order of assending bits */
} __packed;
#define UDF_FILETIMES_ATTR_NO 5
/* Device Specification Extended Attribute [4/4.10.7] */
struct device_extattr_entry {
struct extattr_entry hdr;
uint32_t iu_l; /* length of implementation use */
uint32_t major;
uint32_t minor;
uint8_t data[1]; /* UDF: if nonzero length, contain developer ID regid */
} __packed;
#define UDF_DEVICESPEC_ATTR_NO 12
/* VAT LV extension Extended Attribute [UDF 3.3.4.5.1.3] 1.50 errata */
struct vatlvext_extattr_entry {
uint64_t unique_id_chk; /* needs to be copy of ICB's */
uint32_t num_files;
uint32_t num_directories;
char logvol_id[128]; /* replaces logvol name */
} __packed;
/* File Entry [4/14.9] */
struct file_entry {
struct desc_tag tag;
struct icb_tag icbtag;
uint32_t uid;
uint32_t gid;
uint32_t perm;
uint16_t link_cnt;
uint8_t rec_format;
uint8_t rec_disp_attr;
uint32_t rec_len;
uint64_t inf_len;
uint64_t logblks_rec;
struct timestamp atime;
struct timestamp mtime;
struct timestamp attrtime;
uint32_t ckpoint;
struct long_ad ex_attr_icb;
struct regid imp_id;
uint64_t unique_id;
uint32_t l_ea; /* Length of extended attribute area */
uint32_t l_ad; /* Length of allocation descriptors */
uint8_t data[1];
} __packed;
#define UDF_FENTRY_SIZE 176
#define UDF_FENTRY_PERM_USER_MASK 0x07
#define UDF_FENTRY_PERM_GRP_MASK 0xE0
#define UDF_FENTRY_PERM_OWNER_MASK 0x1C00
/* Extended File Entry [4/48.17] */
struct extfile_entry {
struct desc_tag tag;
struct icb_tag icbtag;
uint32_t uid;
uint32_t gid;
uint32_t perm;
uint16_t link_cnt;
uint8_t rec_format;
uint8_t rec_disp_attr;
uint32_t rec_len;
uint64_t inf_len;
uint64_t obj_size;
uint64_t logblks_rec;
struct timestamp atime;
struct timestamp mtime;
struct timestamp ctime;
struct timestamp attrtime;
uint32_t ckpoint;
uint32_t reserved1;
struct long_ad ex_attr_icb;
struct long_ad streamdir_icb;
struct regid imp_id;
uint64_t unique_id;
uint32_t l_ea; /* Length of extended attribute area */
uint32_t l_ad; /* Length of allocation descriptors */
uint8_t data[1];
} __packed;
/* Indirect entry [ecma 48.7] */
struct indirect_entry {
struct desc_tag tag;
struct icb_tag icbtag;
struct long_ad indirect_icb;
} __packed;
/* Allocation extent descritor [ecma 48.5] */
struct alloc_ext_entry {
struct desc_tag tag;
uint32_t prev_entry;
uint32_t l_ad;
uint8_t data[1];
} __packed;
union dscrptr {
struct desc_tag tag;
struct anchor_vdp avdp;
struct vol_desc_ptr vdp;
struct pri_vol_desc pvd;
struct logvol_desc lvd;
struct unalloc_sp_desc usd;
struct logvol_int_desc lvid;
struct impvol_desc ivd;
struct part_desc pd;
struct fileset_desc fsd;
struct fileid_desc fid;
struct file_entry fe;
struct extfile_entry efe;
struct extattrhdr_desc eahd;
struct indirect_entry inde;
struct alloc_ext_entry aee;
struct udf_sparing_table spt;
struct space_bitmap_desc sbd;
struct space_entry_desc sed;
} __packed;
/* Useful defines */
#define GETICB(ad_type, fentry, offset) \
(struct ad_type *)&fentry->data[offset]
#define GETICBLEN(ad_type, icb) ((struct ad_type *)(icb))->len
#endif /* !_FS_UDF_ECMA167_UDF_H_ */
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