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| 1 | 13 | up20180614 | /* $NetBSD: iso.h,v 1.10 2011/09/27 01:01:44 christos Exp $ */
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| 2 | |||
| 3 | /*-
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| 4 | * Copyright (c) 1994
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| 5 | * The Regents of the University of California. All rights reserved.
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| 6 | *
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| 7 | * This code is derived from software contributed to Berkeley
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| 8 | * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
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| 9 | * Support code is derived from software contributed to Berkeley
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| 10 | * by Atsushi Murai (amurai@spec.co.jp).
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| 11 | *
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| 12 | * Redistribution and use in source and binary forms, with or without
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| 13 | * modification, are permitted provided that the following conditions
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| 14 | * are met:
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| 15 | * 1. Redistributions of source code must retain the above copyright
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| 16 | * notice, this list of conditions and the following disclaimer.
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| 17 | * 2. Redistributions in binary form must reproduce the above copyright
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| 18 | * notice, this list of conditions and the following disclaimer in the
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| 19 | * documentation and/or other materials provided with the distribution.
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| 20 | * 3. Neither the name of the University nor the names of its contributors
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| 21 | * may be used to endorse or promote products derived from this software
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| 22 | * without specific prior written permission.
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| 23 | *
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| 24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 34 | * SUCH DAMAGE.
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| 35 | *
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| 36 | * @(#)iso.h 8.6 (Berkeley) 5/10/95
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| 37 | */
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| 38 | |||
| 39 | /*
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| 40 | * Definitions describing ISO9660 file system structure, as well as
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| 41 | * the functions necessary to access fields of ISO9660 file system
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| 42 | * structures.
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| 43 | */
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| 44 | |||
| 45 | #ifndef _ISOFS_CD9660_ISO_H_
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| 46 | #define _ISOFS_CD9660_ISO_H_
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| 47 | |||
| 48 | #define ISODCL(from, to) (to - from + 1) |
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| 49 | |||
| 50 | struct iso_volume_descriptor {
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| 51 | char type[ISODCL(1,1)]; /* 711 */ |
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| 52 | char id[ISODCL(2,6)]; |
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| 53 | char version[ISODCL(7,7)]; |
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| 54 | char data[ISODCL(8,2048)]; |
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| 55 | }; |
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| 56 | |||
| 57 | /* volume descriptor types */
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| 58 | #define ISO_VD_PRIMARY 1 |
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| 59 | #define ISO_VD_SUPPLEMENTARY 2 |
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| 60 | #define ISO_VD_END 255 |
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| 61 | |||
| 62 | #define ISO_STANDARD_ID "CD001" |
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| 63 | #define ISO_ECMA_ID "CDW01" |
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| 64 | |||
| 65 | #define ISO_MAXNAMLEN 255 |
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| 66 | |||
| 67 | struct iso_primary_descriptor {
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| 68 | char type [ISODCL ( 1, 1)]; /* 711 */ |
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| 69 | char id [ISODCL ( 2, 6)]; |
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| 70 | char version [ISODCL ( 7, 7)]; /* 711 */ |
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| 71 | char unused1 [ISODCL ( 8, 8)]; |
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| 72 | char system_id [ISODCL ( 9, 40)]; /* achars */ |
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| 73 | char volume_id [ISODCL ( 41, 72)]; /* dchars */ |
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| 74 | char unused2 [ISODCL ( 73, 80)]; |
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| 75 | char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ |
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| 76 | char unused3 [ISODCL ( 89, 120)]; |
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| 77 | char volume_set_size [ISODCL (121, 124)]; /* 723 */ |
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| 78 | char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ |
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| 79 | char logical_block_size [ISODCL (129, 132)]; /* 723 */ |
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| 80 | char path_table_size [ISODCL (133, 140)]; /* 733 */ |
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| 81 | char type_l_path_table [ISODCL (141, 144)]; /* 731 */ |
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| 82 | char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ |
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| 83 | char type_m_path_table [ISODCL (149, 152)]; /* 732 */ |
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| 84 | char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ |
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| 85 | char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ |
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| 86 | char volume_set_id [ISODCL (191, 318)]; /* dchars */ |
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| 87 | char publisher_id [ISODCL (319, 446)]; /* achars */ |
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| 88 | char preparer_id [ISODCL (447, 574)]; /* achars */ |
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| 89 | char application_id [ISODCL (575, 702)]; /* achars */ |
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| 90 | char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ |
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| 91 | char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ |
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| 92 | char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ |
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| 93 | char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ |
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| 94 | char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ |
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| 95 | char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ |
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| 96 | char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ |
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| 97 | char file_structure_version [ISODCL (882, 882)]; /* 711 */ |
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| 98 | char unused4 [ISODCL (883, 883)]; |
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| 99 | char application_data [ISODCL (884, 1395)]; |
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| 100 | char unused5 [ISODCL (1396, 2048)]; |
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| 101 | }; |
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| 102 | #define ISO_DEFAULT_BLOCK_SIZE 2048 |
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| 103 | |||
| 104 | struct iso_supplementary_descriptor {
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| 105 | char type [ISODCL ( 1, 1)]; /* 711 */ |
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| 106 | char id [ISODCL ( 2, 6)]; |
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| 107 | char version [ISODCL ( 7, 7)]; /* 711 */ |
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| 108 | char flags [ISODCL ( 8, 8)]; /* 711? */ |
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| 109 | char system_id [ISODCL ( 9, 40)]; /* achars */ |
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| 110 | char volume_id [ISODCL ( 41, 72)]; /* dchars */ |
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| 111 | char unused2 [ISODCL ( 73, 80)]; |
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| 112 | char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ |
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| 113 | char escape [ISODCL ( 89, 120)]; |
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| 114 | char volume_set_size [ISODCL (121, 124)]; /* 723 */ |
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| 115 | char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ |
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| 116 | char logical_block_size [ISODCL (129, 132)]; /* 723 */ |
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| 117 | char path_table_size [ISODCL (133, 140)]; /* 733 */ |
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| 118 | char type_l_path_table [ISODCL (141, 144)]; /* 731 */ |
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| 119 | char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ |
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| 120 | char type_m_path_table [ISODCL (149, 152)]; /* 732 */ |
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| 121 | char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ |
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| 122 | char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ |
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| 123 | char volume_set_id [ISODCL (191, 318)]; /* dchars */ |
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| 124 | char publisher_id [ISODCL (319, 446)]; /* achars */ |
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| 125 | char preparer_id [ISODCL (447, 574)]; /* achars */ |
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| 126 | char application_id [ISODCL (575, 702)]; /* achars */ |
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| 127 | char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ |
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| 128 | char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ |
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| 129 | char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ |
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| 130 | char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ |
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| 131 | char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ |
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| 132 | char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ |
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| 133 | char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ |
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| 134 | char file_structure_version [ISODCL (882, 882)]; /* 711 */ |
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| 135 | char unused4 [ISODCL (883, 883)]; |
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| 136 | char application_data [ISODCL (884, 1395)]; |
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| 137 | char unused5 [ISODCL (1396, 2048)]; |
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| 138 | }; |
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| 139 | |||
| 140 | struct iso_directory_record {
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| 141 | char length [ISODCL (1, 1)]; /* 711 */ |
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| 142 | char ext_attr_length [ISODCL (2, 2)]; /* 711 */ |
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| 143 | u_char extent [ISODCL (3, 10)]; /* 733 */ |
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| 144 | u_char size [ISODCL (11, 18)]; /* 733 */ |
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| 145 | char date [ISODCL (19, 25)]; /* 7 by 711 */ |
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| 146 | char flags [ISODCL (26, 26)]; |
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| 147 | char file_unit_size [ISODCL (27, 27)]; /* 711 */ |
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| 148 | char interleave [ISODCL (28, 28)]; /* 711 */ |
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| 149 | char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ |
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| 150 | char name_len [ISODCL (33, 33)]; /* 711 */ |
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| 151 | char name [1]; /* XXX */ |
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| 152 | }; |
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| 153 | /* can't take sizeof(iso_directory_record), because of possible alignment
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| 154 | of the last entry (34 instead of 33) */
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| 155 | #define ISO_DIRECTORY_RECORD_SIZE 33 |
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| 156 | |||
| 157 | struct iso_extended_attributes {
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| 158 | u_char owner [ISODCL (1, 4)]; /* 723 */ |
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| 159 | u_char group [ISODCL (5, 8)]; /* 723 */ |
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| 160 | u_char perm [ISODCL (9, 10)]; /* 9.5.3 */ |
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| 161 | char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */ |
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| 162 | char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */ |
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| 163 | char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */ |
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| 164 | char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */ |
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| 165 | char recfmt [ISODCL (79, 79)]; /* 711 */ |
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| 166 | char recattr [ISODCL (80, 80)]; /* 711 */ |
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| 167 | u_char reclen [ISODCL (81, 84)]; /* 723 */ |
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| 168 | char system_id [ISODCL (85, 116)]; /* achars */ |
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| 169 | char system_use [ISODCL (117, 180)]; |
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| 170 | char version [ISODCL (181, 181)]; /* 711 */ |
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| 171 | char len_esc [ISODCL (182, 182)]; /* 711 */ |
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| 172 | char reserved [ISODCL (183, 246)]; |
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| 173 | u_char len_au [ISODCL (247, 250)]; /* 723 */ |
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| 174 | }; |
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| 175 | |||
| 176 | /* 7.1.1: unsigned char */
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| 177 | static __inline __unused int |
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| 178 | isonum_711(const u_char *p)
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| 179 | {
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| 180 | return *p;
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| 181 | } |
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| 182 | |||
| 183 | /* 7.1.2: signed char */
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| 184 | static __inline __unused int |
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| 185 | isonum_712(const u_char *p)
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| 186 | {
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| 187 | return (signed char) *p; |
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| 188 | } |
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| 189 | |||
| 190 | /* 7.2.1: unsigned little-endian 16-bit value. NOT USED IN KERNEL. */
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| 191 | static __inline __unused uint16_t
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| 192 | isonum_721(const u_char *p)
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| 193 | {
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| 194 | return le16dec(p);
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| 195 | } |
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| 196 | |||
| 197 | /* 7.2.2: unsigned big-endian 16-bit value. NOT USED IN KERNEL. */
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| 198 | static __inline __unused uint16_t
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| 199 | isonum_722(const u_char *p)
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| 200 | {
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| 201 | return be16dec(p);
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| 202 | } |
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| 203 | |||
| 204 | /* 7.2.3: unsigned both-endian (little, then big) 16-bit value */
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| 205 | static __inline __unused uint16_t
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| 206 | isonum_723(const u_char *p)
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| 207 | {
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| 208 | #if BYTE_ORDER == BIG_ENDIAN
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| 209 | return be16dec(p + 2); |
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| 210 | #else
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| 211 | return le16dec(p);
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| 212 | #endif
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| 213 | } |
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| 214 | |||
| 215 | /* 7.3.1: unsigned little-endian 32-bit value. NOT USED IN KERNEL. */
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| 216 | static __inline __unused uint32_t
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| 217 | isonum_731(const u_char *p)
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| 218 | {
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| 219 | return le32dec(p);
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| 220 | } |
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| 221 | |||
| 222 | /* 7.3.2: unsigned big-endian 32-bit value. NOT USED IN KERNEL. */
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| 223 | static __inline __unused uint32_t
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| 224 | isonum_732(const u_char *p)
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| 225 | {
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| 226 | return be32dec(p);
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| 227 | } |
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| 228 | |||
| 229 | /* 7.3.3: unsigned both-endian (little, then big) 32-bit value */
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| 230 | static __inline __unused uint32_t
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| 231 | isonum_733(const u_char *p)
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| 232 | {
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| 233 | #if BYTE_ORDER == BIG_ENDIAN
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| 234 | return be32dec(p + 4); |
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| 235 | #else
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| 236 | return le32dec(p);
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| 237 | #endif
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| 238 | } |
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| 239 | |||
| 240 | /*
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| 241 | * Associated files have a leading '='.
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| 242 | */
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| 243 | #define ASSOCCHAR '=' |
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| 244 | |||
| 245 | #endif /* _ISOFS_CD9660_ISO_H_ */ |