1/* 2 * Header file iso9660.h - assorted structure definitions and typecasts. 3 * specific to iso9660 filesystem. 4 5 Written by Eric Youngdale (1993). 6 7 Copyright 1993 Yggdrasil Computing, Incorporated 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 2, or (at your option) 12 any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ 22 23/* 24 * $Id: iso9660.h,v 1.2 2023/11/21 08:46:06 jmatthew Exp $ 25 */ 26 27#ifndef _ISOFS_FS_H 28#define _ISOFS_FS_H 29 30/* 31 * The isofs filesystem constants/structures 32 */ 33 34/* This part borrowed from the bsd386 isofs */ 35#define ISODCL(from, to) (to - from + 1) 36 37struct iso_volume_descriptor { 38 char type[ISODCL(1,1)]; /* 711 */ 39 char id[ISODCL(2,6)]; 40 char version[ISODCL(7,7)]; 41 char data[ISODCL(8,2048)]; 42}; 43 44/* volume descriptor types */ 45#define ISO_VD_PRIMARY 1 46#define ISO_VD_SUPPLEMENTARY 2 /* Used by Joliet */ 47#define ISO_VD_END 255 48 49#define ISO_STANDARD_ID "CD001" 50 51#define EL_TORITO_ID "EL TORITO SPECIFICATION" 52#define EL_TORITO_ARCH_x86 0 53#define EL_TORITO_ARCH_PPC 1 54#define EL_TORITO_ARCH_MAC 2 55#define EL_TORITO_ARCH_EFI 0xEF 56#define EL_TORITO_BOOTABLE 0x88 57#define EL_TORITO_MEDIA_NOEMUL 0 58#define EL_TORITO_MEDIA_12FLOP 1 59#define EL_TORITO_MEDIA_144FLOP 2 60#define EL_TORITO_MEDIA_288FLOP 3 61#define EL_TORITO_MEDIA_HD 4 62 63struct iso_primary_descriptor { 64 char type [ISODCL ( 1, 1)]; /* 711 */ 65 char id [ISODCL ( 2, 6)]; 66 char version [ISODCL ( 7, 7)]; /* 711 */ 67 char unused1 [ISODCL ( 8, 8)]; 68 char system_id [ISODCL ( 9, 40)]; /* achars */ 69 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 70 char unused2 [ISODCL ( 73, 80)]; 71 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 72 char escape_sequences [ISODCL ( 89, 120)]; 73 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 74 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 75 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 76 char path_table_size [ISODCL (133, 140)]; /* 733 */ 77 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 78 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 79 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 80 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 81 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 82 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 83 char publisher_id [ISODCL (319, 446)]; /* achars */ 84 char preparer_id [ISODCL (447, 574)]; /* achars */ 85 char application_id [ISODCL (575, 702)]; /* achars */ 86 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 87 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 88 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 89 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 90 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 91 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 92 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 93 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 94 char unused4 [ISODCL (883, 883)]; 95 char application_data [ISODCL (884, 1395)]; 96 char unused5 [ISODCL (1396, 2048)]; 97}; 98 99/* El Torito Boot Record Volume Descriptor */ 100struct eltorito_boot_descriptor { 101 char id [ISODCL ( 1, 1)]; /* 711 */ 102 char id2 [ISODCL ( 2, 6)]; 103 char version [ISODCL ( 7, 7)]; /* 711 */ 104 char system_id [ISODCL ( 8, 39)]; 105 char unused2 [ISODCL ( 40, 71)]; 106 char bootcat_ptr [ISODCL ( 72 , 75)]; 107 char unused5 [ISODCL ( 76, 2048)]; 108}; 109 110/* Validation entry for El Torito */ 111struct eltorito_validation_entry { 112 char headerid [ISODCL ( 1, 1)]; /* 711 */ 113 char arch [ISODCL ( 2, 2)]; 114 char pad1 [ISODCL ( 3, 4)]; /* 711 */ 115 char id [ISODCL ( 5, 28)]; 116 char cksum [ISODCL ( 29, 30)]; 117 char key1 [ISODCL ( 31, 31)]; 118 char key2 [ISODCL ( 32, 32)]; 119}; 120 121/* El Torito initial/default entry in boot catalog */ 122struct eltorito_defaultboot_entry { 123 char boot_id [ISODCL ( 1, 1)]; /* 711 */ 124 char boot_media [ISODCL ( 2, 2)]; 125 char loadseg [ISODCL ( 3, 4)]; /* 711 */ 126 char arch [ISODCL ( 5, 5)]; 127 char pad1 [ISODCL ( 6, 6)]; 128 char nsect [ISODCL ( 7, 8)]; 129 char bootoff [ISODCL ( 9, 12)]; 130 char pad2 [ISODCL ( 13, 32)]; 131}; 132 133/* El Torito section header entry in boot catalog */ 134struct eltorito_sectionheader_entry { 135#define EL_TORITO_SHDR_ID_SHDR 0x90 136#define EL_TORITO_SHDR_ID_LAST_SHDR 0x91 137 char header_id [ISODCL ( 1, 1)]; /* 711 */ 138 char platform_id [ISODCL ( 2, 2)]; 139 char entry_count [ISODCL ( 3, 4)]; /* 721 */ 140 char id [ISODCL ( 5, 32)]; 141}; 142 143 144/* We use this to help us look up the parent inode numbers. */ 145 146struct iso_path_table{ 147 unsigned char name_len[2]; /* 721 */ 148 char extent[4]; /* 731 */ 149 char parent[2]; /* 721 */ 150 char name[1]; 151}; 152 153struct iso_directory_record { 154 unsigned char length [ISODCL (1, 1)]; /* 711 */ 155 char ext_attr_length [ISODCL (2, 2)]; /* 711 */ 156 char extent [ISODCL (3, 10)]; /* 733 */ 157 char size [ISODCL (11, 18)]; /* 733 */ 158 char date [ISODCL (19, 25)]; /* 7 by 711 */ 159 char flags [ISODCL (26, 26)]; 160 char file_unit_size [ISODCL (27, 27)]; /* 711 */ 161 char interleave [ISODCL (28, 28)]; /* 711 */ 162 char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ 163 unsigned char name_len [ISODCL (33, 33)]; /* 711 */ 164 char name [34]; /* Not really, but we need something here */ 165}; 166#endif 167 168 169 170