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/*
* Header file iso9660.h - assorted structure definitions and typecasts.
* specific to iso9660 filesystem.
Written by Eric Youngdale (1993).
Copyright 1993 Yggdrasil Computing, Incorporated
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. */
/*
* $Id: iso9660.h,v 1.1 1997/02/23 15:55:25 eric Rel $
*/
#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_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_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 unused3 [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 id [ISODCL ( 1, 1)]; /* 711 */
char id2 [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)];
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 arch [ISODCL ( 5, 5)];
char pad1 [ISODCL ( 6, 6)];
char nsect [ISODCL ( 7, 8)];
char bootoff [ISODCL ( 9, 12)];
char pad2 [ISODCL ( 13, 32)];
};
/* 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];
};
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 [34]; /* Not really, but we need something here */
};
#endif
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