/* @(#)iso9660.h 1.13 00/04/19 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 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)]; }; /* 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 mkisofs.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 */ #define LEN_ISONAME 31 #define MAX_ISONAME 37 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)]; }; #endif