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 1.1 2000/10/10 20:40:16 beck 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 37 struct 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_BOOTABLE 0x88 56 #define EL_TORITO_MEDIA_NOEMUL 0 57 #define EL_TORITO_MEDIA_12FLOP 1 58 #define EL_TORITO_MEDIA_144FLOP 2 59 #define EL_TORITO_MEDIA_288FLOP 3 60 #define EL_TORITO_MEDIA_HD 4 61 62 struct iso_primary_descriptor { 63 char type [ISODCL ( 1, 1)]; /* 711 */ 64 char id [ISODCL ( 2, 6)]; 65 char version [ISODCL ( 7, 7)]; /* 711 */ 66 char unused1 [ISODCL ( 8, 8)]; 67 char system_id [ISODCL ( 9, 40)]; /* achars */ 68 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 69 char unused2 [ISODCL ( 73, 80)]; 70 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 71 char escape_sequences [ISODCL ( 89, 120)]; 72 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 73 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 74 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 75 char path_table_size [ISODCL (133, 140)]; /* 733 */ 76 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 77 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 78 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 79 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 80 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 81 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 82 char publisher_id [ISODCL (319, 446)]; /* achars */ 83 char preparer_id [ISODCL (447, 574)]; /* achars */ 84 char application_id [ISODCL (575, 702)]; /* achars */ 85 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 86 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 87 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 88 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 89 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 90 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 91 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 92 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 93 char unused4 [ISODCL (883, 883)]; 94 char application_data [ISODCL (884, 1395)]; 95 char unused5 [ISODCL (1396, 2048)]; 96 }; 97 98 /* El Torito Boot Record Volume Descriptor */ 99 struct eltorito_boot_descriptor { 100 char id [ISODCL ( 1, 1)]; /* 711 */ 101 char id2 [ISODCL ( 2, 6)]; 102 char version [ISODCL ( 7, 7)]; /* 711 */ 103 char system_id [ISODCL ( 8, 39)]; 104 char unused2 [ISODCL ( 40, 71)]; 105 char bootcat_ptr [ISODCL ( 72 , 75)]; 106 char unused5 [ISODCL ( 76, 2048)]; 107 }; 108 109 /* Validation entry for El Torito */ 110 struct eltorito_validation_entry { 111 char headerid [ISODCL ( 1, 1)]; /* 711 */ 112 char arch [ISODCL ( 2, 2)]; 113 char pad1 [ISODCL ( 3, 4)]; /* 711 */ 114 char id [ISODCL ( 5, 28)]; 115 char cksum [ISODCL ( 29, 30)]; 116 char key1 [ISODCL ( 31, 31)]; 117 char key2 [ISODCL ( 32, 32)]; 118 }; 119 120 /* El Torito initial/default entry in boot catalog */ 121 struct eltorito_defaultboot_entry { 122 char boot_id [ISODCL ( 1, 1)]; /* 711 */ 123 char boot_media [ISODCL ( 2, 2)]; 124 char loadseg [ISODCL ( 3, 4)]; /* 711 */ 125 char arch [ISODCL ( 5, 5)]; 126 char pad1 [ISODCL ( 6, 6)]; 127 char nsect [ISODCL ( 7, 8)]; 128 char bootoff [ISODCL ( 9, 12)]; 129 char pad2 [ISODCL ( 13, 32)]; 130 }; 131 132 133 /* We use this to help us look up the parent inode numbers. */ 134 135 struct iso_path_table{ 136 unsigned char name_len[2]; /* 721 */ 137 char extent[4]; /* 731 */ 138 char parent[2]; /* 721 */ 139 char name[1]; 140 }; 141 142 struct iso_directory_record { 143 unsigned char length [ISODCL (1, 1)]; /* 711 */ 144 char ext_attr_length [ISODCL (2, 2)]; /* 711 */ 145 char extent [ISODCL (3, 10)]; /* 733 */ 146 char size [ISODCL (11, 18)]; /* 733 */ 147 char date [ISODCL (19, 25)]; /* 7 by 711 */ 148 char flags [ISODCL (26, 26)]; 149 char file_unit_size [ISODCL (27, 27)]; /* 711 */ 150 char interleave [ISODCL (28, 28)]; /* 711 */ 151 char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ 152 unsigned char name_len [ISODCL (33, 33)]; /* 711 */ 153 char name [34]; /* Not really, but we need something here */ 154 }; 155 #endif 156 157 158 159