/* $OpenBSD: ecma167-udf.h,v 1.7 2009/06/05 04:35:25 krw Exp $ */ /* $NetBSD: ecma167-udf.h,v 1.10 2008/06/24 15:30:33 reinoud Exp $ */ /*- * Copyright (c) 2003, 2004, 2005, 2006, 2008 Reinoud Zandijk * Copyright (c) 2001, 2002 Scott Long * 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_ /* 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_INDIRECTENTRY = 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)) #define UDF_EXT_MAXLEN ((1<<30)-1) /* Character set spec [1/7.2.1] */ struct charspec { uint8_t type; uint8_t inf[63]; } __packed; struct pathcomp { uint8_t type; uint8_t l_ci; uint16_t comp_filever; uint8_t ident[256]; } __packed; #define UDF_PATH_COMP_SIZE 4 #define UDF_PATH_COMP_RESERVED 0 #define UDF_PATH_COMP_ROOT 1 #define UDF_PATH_COMP_MOUNTROOT 2 #define UDF_PATH_COMP_PARENTDIR 3 #define UDF_PATH_COMP_CURDIR 4 #define UDF_PATH_COMP_NAME 5 /* 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; #define UDF_TIMESTAMP_SIZE 12 /* 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[0]; } __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 #define UDF_FILETIMES_FILE_CREATION 1 #define UDF_FILETIMES_FILE_DELETION 4 #define UDF_FILETIMES_FILE_EFFECTIVE 8 #define UDF_FILETIMES_FILE_BACKUPED 16 #define UDF_FILETIMES_ATTR_SIZE(no) (20 + (no)*sizeof(struct timestamp)) /* 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; #define UDF_EXTFENTRY_SIZE 216 /* Indirect entry [ecma 48.7] */ struct indirect_entry { struct desc_tag tag; struct icb_tag icbtag; struct long_ad indirect_icb; } __packed; /* Allocation extent descriptor [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) letoh32(((struct ad_type *)(icb))->len) #endif /* !_FS_UDF_ECMA167_UDF_H_ */