/* * This file has been modified for the cdrkit suite. * * The behaviour and appearence of the program code below can differ to a major * extent from the version distributed by the original author(s). * * For details, see Changelog file distributed with the cdrkit package. If you * received this file from another source then ask the distributing person for * a log of modifications. * */ /* @(#)iso9660.h 1.19 04/03/02 joerg */ /* * Header file iso9660.h - assorted structure definitions and typecasts. * specific to iso9660 filesystem. * * Written by Eric Youngdale (1993). * * Copyright 1993 Yggdrasil Computing, Incorporated * Copyright (c) 1999,2000-2004 J. Schilling * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _ISOFS_FS_H #define _ISOFS_FS_H /* * The isofs filesystem constants/structures */ /* This part borrowed from the bsd386 isofs */ #define ISODCL(from, to) (to - from + 1) struct iso_volume_descriptor { char type [ISODCL(1, 1)]; /* 711 */ char id [ISODCL(2, 6)]; char version [ISODCL(7, 7)]; char data [ISODCL(8, 2048)]; }; /* volume descriptor types */ #define ISO_VD_PRIMARY 1 #define ISO_VD_SUPPLEMENTARY 2 /* Used by Joliet */ #define ISO_VD_END 255 #define ISO_STANDARD_ID "CD001" #define EL_TORITO_ID "EL TORITO SPECIFICATION" #define EL_TORITO_ARCH_x86 0 #define EL_TORITO_ARCH_PPC 1 #define EL_TORITO_ARCH_MAC 2 #define EL_TORITO_BOOTABLE 0x88 #define EL_TORITO_NOT_BOOTABLE 0 #define EL_TORITO_MEDIA_NOEMUL 0 #define EL_TORITO_MEDIA_12FLOP 1 #define EL_TORITO_MEDIA_144FLOP 2 #define EL_TORITO_MEDIA_288FLOP 3 #define EL_TORITO_MEDIA_HD 4 struct iso_primary_descriptor { char type [ISODCL(1, 1)]; /* 711 */ char id [ISODCL(2, 6)]; char version [ISODCL(7, 7)]; /* 711 */ char unused1 [ISODCL(8, 8)]; char system_id [ISODCL(9, 40)]; /* achars */ char volume_id [ISODCL(41, 72)]; /* dchars */ char unused2 [ISODCL(73, 80)]; char volume_space_size [ISODCL(81, 88)]; /* 733 */ char escape_sequences [ISODCL(89, 120)]; char volume_set_size [ISODCL(121, 124)]; /* 723 */ char volume_sequence_number [ISODCL(125, 128)]; /* 723 */ char logical_block_size [ISODCL(129, 132)]; /* 723 */ char path_table_size [ISODCL(133, 140)]; /* 733 */ char type_l_path_table [ISODCL(141, 144)]; /* 731 */ char opt_type_l_path_table [ISODCL(145, 148)]; /* 731 */ char type_m_path_table [ISODCL(149, 152)]; /* 732 */ char opt_type_m_path_table [ISODCL(153, 156)]; /* 732 */ char root_directory_record [ISODCL(157, 190)]; /* 9.1 */ char volume_set_id [ISODCL(191, 318)]; /* dchars */ char publisher_id [ISODCL(319, 446)]; /* achars */ char preparer_id [ISODCL(447, 574)]; /* achars */ char application_id [ISODCL(575, 702)]; /* achars */ char copyright_file_id [ISODCL(703, 739)]; /* 7.5 dchars */ char abstract_file_id [ISODCL(740, 776)]; /* 7.5 dchars */ char bibliographic_file_id [ISODCL(777, 813)]; /* 7.5 dchars */ char creation_date [ISODCL(814, 830)]; /* 8.4.26.1 */ char modification_date [ISODCL(831, 847)]; /* 8.4.26.1 */ char expiration_date [ISODCL(848, 864)]; /* 8.4.26.1 */ char effective_date [ISODCL(865, 881)]; /* 8.4.26.1 */ char file_structure_version [ISODCL(882, 882)]; /* 711 */ char unused4 [ISODCL(883, 883)]; char application_data [ISODCL(884, 1395)]; char unused5 [ISODCL(1396, 2048)]; }; /* * Supplementary or enhanced volume descriptor */ struct iso_enhanced_descriptor { char type [ISODCL(1, 1)]; /* 711 */ char id [ISODCL(2, 6)]; char version [ISODCL(7, 7)]; /* 711 */ char flags [ISODCL(8, 8)]; char system_id [ISODCL(9, 40)]; /* achars */ char volume_id [ISODCL(41, 72)]; /* dchars */ char unused2 [ISODCL(73, 80)]; char volume_space_size [ISODCL(81, 88)]; /* 733 */ char escape_sequences [ISODCL(89, 120)]; char volume_set_size [ISODCL(121, 124)]; /* 723 */ char volume_sequence_number [ISODCL(125, 128)]; /* 723 */ char logical_block_size [ISODCL(129, 132)]; /* 723 */ char path_table_size [ISODCL(133, 140)]; /* 733 */ char type_l_path_table [ISODCL(141, 144)]; /* 731 */ char opt_type_l_path_table [ISODCL(145, 148)]; /* 731 */ char type_m_path_table [ISODCL(149, 152)]; /* 732 */ char opt_type_m_path_table [ISODCL(153, 156)]; /* 732 */ char root_directory_record [ISODCL(157, 190)]; /* 9.1 */ char volume_set_id [ISODCL(191, 318)]; /* dchars */ char publisher_id [ISODCL(319, 446)]; /* achars */ char preparer_id [ISODCL(447, 574)]; /* achars */ char application_id [ISODCL(575, 702)]; /* achars */ char copyright_file_id [ISODCL(703, 739)]; /* 7.5 dchars */ char abstract_file_id [ISODCL(740, 776)]; /* 7.5 dchars */ char bibliographic_file_id [ISODCL(777, 813)]; /* 7.5 dchars */ char creation_date [ISODCL(814, 830)]; /* 8.4.26.1 */ char modification_date [ISODCL(831, 847)]; /* 8.4.26.1 */ char expiration_date [ISODCL(848, 864)]; /* 8.4.26.1 */ char effective_date [ISODCL(865, 881)]; /* 8.4.26.1 */ char file_structure_version [ISODCL(882, 882)]; /* 711 */ char unused4 [ISODCL(883, 883)]; char application_data [ISODCL(884, 1395)]; char unused5 [ISODCL(1396, 2048)]; }; /* El Torito Boot Record Volume Descriptor */ struct eltorito_boot_descriptor { char type [ISODCL(1, 1)]; /* 711 */ char id [ISODCL(2, 6)]; char version [ISODCL(7, 7)]; /* 711 */ char system_id [ISODCL(8, 39)]; char unused2 [ISODCL(40, 71)]; char bootcat_ptr [ISODCL(72, 75)]; char unused5 [ISODCL(76, 2048)]; }; /* Validation entry for El Torito */ struct eltorito_validation_entry { char headerid [ISODCL(1, 1)]; /* 711 */ char arch [ISODCL(2, 2)]; char pad1 [ISODCL(3, 4)]; /* 711 */ char id [ISODCL(5, 28)]; /* CD devel/man*/ char cksum [ISODCL(29, 30)]; char key1 [ISODCL(31, 31)]; char key2 [ISODCL(32, 32)]; }; /* El Torito initial/default entry in boot catalog */ struct eltorito_defaultboot_entry { char boot_id [ISODCL(1, 1)]; /* 711 */ char boot_media [ISODCL(2, 2)]; char loadseg [ISODCL(3, 4)]; /* 711 */ char sys_type [ISODCL(5, 5)]; char pad1 [ISODCL(6, 6)]; char nsect [ISODCL(7, 8)]; char bootoff [ISODCL(9, 12)]; char pad2 [ISODCL(13, 32)]; }; /* * XXX JS: The next two structures have odd lengths! * Some compilers (e.g. on Sun3/mc68020) padd the structures to even length. * For this reason, we cannot use sizeof (struct iso_path_table) or * sizeof (struct iso_directory_record) to compute on disk sizes. * Instead, we use offsetof(..., name) and add the name size. * See genisoimage.h */ /* We use this to help us look up the parent inode numbers. */ struct iso_path_table { unsigned char name_len[2]; /* 721 */ char extent[4]; /* 731 */ char parent[2]; /* 721 */ char name[1]; }; /* * A ISO filename is: "abcde.eee;1" -> '.' ';' * * The maximum needed string length is: * 30 chars (filename + ext) * + 2 chars ('.' + ';') * + strlen("32767") * + null byte * ================================ * = 38 chars * * We currently do not support CD-ROM-XA entension records, but we must honor * the needed space for ISO-9660:1999 (Version 2). * * XXX If we ever will start to support XA records, we will need to take care * XXX that the the maximum ISO-9660 name length will be reduced by another * XXX 14 bytes resulting in a new total of 179 Bytes. */ #define LEN_ISONAME 31 #define MAX_ISONAME_V1 37 #define MAX_ISONAME_V2 207 /* 254 - 33 - 14 (XA Record) */ #define MAX_ISONAME_V2_RR 193 /* 254 - 33 - 28 (CE Record) */ #define MAX_ISONAME_V2_RR_XA 179 /* 254 - 33 - 14 - 28 */ #define MAX_ISONAME MAX_ISONAME_V2 /* Used for array space defs */ #define MAX_ISODIR 254 /* Must be even and <= 255 */ struct iso_directory_record { unsigned char length [ISODCL(1, 1)]; /* 711 */ char ext_attr_length [ISODCL(2, 2)]; /* 711 */ char extent [ISODCL(3, 10)]; /* 733 */ char size [ISODCL(11, 18)]; /* 733 */ char date [ISODCL(19, 25)]; /* 7 by 711 */ char flags [ISODCL(26, 26)]; char file_unit_size [ISODCL(27, 27)]; /* 711 */ char interleave [ISODCL(28, 28)]; /* 711 */ char volume_sequence_number [ISODCL(29, 32)]; /* 723 */ unsigned char name_len [ISODCL(33, 33)]; /* 711 */ char name [MAX_ISONAME+1]; /* Not really, but we need something here */ }; /* * Iso directory flags. */ #define ISO_FILE 0 /* Not really a flag... */ #define ISO_EXISTENCE 1 /* Do not make existence known (hidden) */ #define ISO_DIRECTORY 2 /* This file is a directory */ #define ISO_ASSOCIATED 4 /* This file is an assiciated file */ #define ISO_RECORD 8 /* Record format in extended attr. != 0 */ #define ISO_PROTECTION 16 /* No read/execute perm. in ext. attr. */ #define ISO_DRESERVED1 32 /* Reserved bit 5 */ #define ISO_DRESERVED2 64 /* Reserved bit 6 */ #define ISO_MULTIEXTENT 128 /* Not final entry of a mult. ext. file */ struct iso_ext_attr_record { char owner [ISODCL(1, 4)]; /* 723 */ char group [ISODCL(5, 8)]; /* 723 */ char permissions [ISODCL(9, 10)]; /* 16 bits */ char creation_date [ISODCL(11, 27)]; /* 8.4.26.1 */ char modification_date [ISODCL(28, 44)]; /* 8.4.26.1 */ char expiration_date [ISODCL(45, 61)]; /* 8.4.26.1 */ char effective_date [ISODCL(62, 78)]; /* 8.4.26.1 */ char record_format [ISODCL(79, 79)]; /* 711 */ char record_attributes [ISODCL(80, 80)]; /* 711 */ char record_length [ISODCL(81, 84)]; /* 723 */ char system_id [ISODCL(85, 116)]; /* achars */ char system_use [ISODCL(117, 180)]; char ext_attr_version [ISODCL(181, 181)]; /* 711 */ char esc_seq_len [ISODCL(182, 182)]; /* 711 */ char reserved [ISODCL(183, 246)]; /* for future use */ char appl_use_len [ISODCL(247, 250)]; /* 723 */ char appl_use[1]; /* really more */ /* char esc_seq[]; escape sequences recorded after appl_use */ }; /* * Iso extended attribute permissions. */ #define ISO_GS_READ 0x0001 /* System Group Read */ #define ISO_BIT_1 0x0002 #define ISO_GS_EXEC 0x0004 /* System Group Execute */ #define ISO_BIT_3 0x0008 #define ISO_O_READ 0x0010 /* Owner Read */ #define ISO_BIT_5 0x0020 #define ISO_O_EXEC 0x0040 /* Owner Exexute */ #define ISO_BIT_7 0x0080 #define ISO_G_READ 0x0100 /* Group Read */ #define ISO_BIT_9 0x0200 #define ISO_G_EXEC 0x0400 /* Group Execute */ #define ISO_BIT_11 0x0800 #define ISO_W_READ 0x1000 /* World (other) Read */ #define ISO_BIT_13 0x2000 #define ISO_W_EXEC 0x4000 /* World (other) Execute */ #define ISO_BIT_15 0x8000 #define ISO_MB_ONE (ISO_BIT_1|ISO_BIT_3|ISO_BIT_5|ISO_BIT_7| \ ISO_BIT_9|ISO_BIT_11|ISO_BIT_13|ISO_BIT_15) /* * Extended Attributes record according to Yellow Book. */ struct iso_xa_dir_record { char group_id [ISODCL(1, 2)]; char user_id [ISODCL(3, 4)]; char attributes [ISODCL(5, 6)]; char signature [ISODCL(7, 8)]; char file_number [ISODCL(9, 9)]; char reserved [ISODCL(10, 14)]; }; /* * Definitions for XA attributes */ #define XA_O_READ 0x0001 /* Owner Read */ #define XA_O_RES 0x0002 /* Owner Reserved (write ?) */ #define XA_O_EXEC 0x0004 /* Owner Execute */ #define XA_O_RES2 0x0008 /* Owner Reserved */ #define XA_G_READ 0x0010 /* Group Read */ #define XA_G_RES 0x0020 /* Group Reserved (write ?) */ #define XA_G_EXEC 0x0040 /* Group Execute */ #define XA_G_RES2 0x0080 /* Group Reserved */ #define XA_W_READ 0x0100 /* World Read */ #define XA_W_RES 0x0200 /* World Reserved (write ?) */ #define XA_W_EXEC 0x0400 /* World Execute */ #define XA_FORM1 0x0800 /* File contains Form 1 sector */ #define XA_FORM2 0x1000 /* File contains Form 2 sector */ #define XA_INTERLEAVED 0x2000 /* File contains interleaved sectors */ #define XA_CDDA 0x4000 /* File contains audio data */ #define XA_DIR 0x8000 /* This is a directory */ /* * Definitions for CD-ROM XA-Mode-2-form-1/2 sector sub-headers */ struct xa_subhdr { Uchar file_number; /* Identifies file for block */ Uchar channel_number; /* Playback channel selection */ Uchar sub_mode; /* See bit definitions below */ Uchar coding; /* Coding information */ }; /* * Sub mode bit definitions */ #define XA_SUBH_EOR 0x01 /* End-Of-Record */ #define XA_SUBH_VIDEO 0x02 /* Video Block */ #define XA_SUBH_AUDIO 0x04 /* Audio Block (not CD-DA) */ #define XA_SUBH_DATA 0x08 /* Data Block */ #define XA_SUBH_TRIGGER 0x10 /* Trigger Block */ #define XA_SUBH_FORM2 0x20 /* 0 == Form1, 1 == Form2 */ #define XA_SUBH_REALTIME 0x40 /* Real Time Block */ #define XA_SUBH_EOF 0x80 /* End-Of-File */ #endif /* _ISOFS_FS_H */