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