1 /* $NetBSD: iso.h,v 1.11 2026/01/08 15:39:07 nia 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 (at) blitz.com). The Rock Ridge Extension 9 * Support code is derived from software contributed to Berkeley 10 * by Atsushi Murai (amurai (at) 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 #include <sys/endian.h> 49 50 #define ISODCL(from, to) (to - from + 1) 51 52 struct iso_volume_descriptor { 53 char type[ISODCL(1,1)]; /* 711 */ 54 char id[ISODCL(2,6)]; 55 char version[ISODCL(7,7)]; 56 char data[ISODCL(8,2048)]; 57 }; 58 59 /* volume descriptor types */ 60 #define ISO_VD_PRIMARY 1 61 #define ISO_VD_SUPPLEMENTARY 2 62 #define ISO_VD_END 255 63 64 #define ISO_STANDARD_ID "CD001" 65 #define ISO_ECMA_ID "CDW01" 66 67 #define ISO_MAXNAMLEN 255 68 69 struct iso_primary_descriptor { 70 char type [ISODCL ( 1, 1)]; /* 711 */ 71 char id [ISODCL ( 2, 6)]; 72 char version [ISODCL ( 7, 7)]; /* 711 */ 73 char unused1 [ISODCL ( 8, 8)]; 74 char system_id [ISODCL ( 9, 40)]; /* achars */ 75 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 76 char unused2 [ISODCL ( 73, 80)]; 77 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 78 char unused3 [ISODCL ( 89, 120)]; 79 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 80 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 81 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 82 char path_table_size [ISODCL (133, 140)]; /* 733 */ 83 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 84 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 85 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 86 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 87 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 88 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 89 char publisher_id [ISODCL (319, 446)]; /* achars */ 90 char preparer_id [ISODCL (447, 574)]; /* achars */ 91 char application_id [ISODCL (575, 702)]; /* achars */ 92 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 93 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 94 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 95 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 96 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 97 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 98 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 99 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 100 char unused4 [ISODCL (883, 883)]; 101 char application_data [ISODCL (884, 1395)]; 102 char unused5 [ISODCL (1396, 2048)]; 103 }; 104 #define ISO_DEFAULT_BLOCK_SIZE 2048 105 106 struct iso_supplementary_descriptor { 107 char type [ISODCL ( 1, 1)]; /* 711 */ 108 char id [ISODCL ( 2, 6)]; 109 char version [ISODCL ( 7, 7)]; /* 711 */ 110 char flags [ISODCL ( 8, 8)]; /* 711? */ 111 char system_id [ISODCL ( 9, 40)]; /* achars */ 112 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 113 char unused2 [ISODCL ( 73, 80)]; 114 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 115 char escape [ISODCL ( 89, 120)]; 116 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 117 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 118 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 119 char path_table_size [ISODCL (133, 140)]; /* 733 */ 120 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 121 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 122 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 123 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 124 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 125 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 126 char publisher_id [ISODCL (319, 446)]; /* achars */ 127 char preparer_id [ISODCL (447, 574)]; /* achars */ 128 char application_id [ISODCL (575, 702)]; /* achars */ 129 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 130 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 131 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 132 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 133 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 134 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 135 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 136 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 137 char unused4 [ISODCL (883, 883)]; 138 char application_data [ISODCL (884, 1395)]; 139 char unused5 [ISODCL (1396, 2048)]; 140 }; 141 142 struct iso_directory_record { 143 char length [ISODCL (1, 1)]; /* 711 */ 144 char ext_attr_length [ISODCL (2, 2)]; /* 711 */ 145 u_char extent [ISODCL (3, 10)]; /* 733 */ 146 u_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 char name_len [ISODCL (33, 33)]; /* 711 */ 153 char name [1]; /* XXX */ 154 }; 155 /* can't take sizeof(iso_directory_record), because of possible alignment 156 of the last entry (34 instead of 33) */ 157 #define ISO_DIRECTORY_RECORD_SIZE 33 158 159 struct iso_extended_attributes { 160 u_char owner [ISODCL (1, 4)]; /* 723 */ 161 u_char group [ISODCL (5, 8)]; /* 723 */ 162 u_char perm [ISODCL (9, 10)]; /* 9.5.3 */ 163 char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */ 164 char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */ 165 char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */ 166 char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */ 167 char recfmt [ISODCL (79, 79)]; /* 711 */ 168 char recattr [ISODCL (80, 80)]; /* 711 */ 169 u_char reclen [ISODCL (81, 84)]; /* 723 */ 170 char system_id [ISODCL (85, 116)]; /* achars */ 171 char system_use [ISODCL (117, 180)]; 172 char version [ISODCL (181, 181)]; /* 711 */ 173 char len_esc [ISODCL (182, 182)]; /* 711 */ 174 char reserved [ISODCL (183, 246)]; 175 u_char len_au [ISODCL (247, 250)]; /* 723 */ 176 }; 177 178 /* 7.1.1: unsigned char */ 179 static __inline __unused int 180 isonum_711(const u_char *p) 181 { 182 return *p; 183 } 184 185 /* 7.1.2: signed char */ 186 static __inline __unused int 187 isonum_712(const u_char *p) 188 { 189 return (signed char) *p; 190 } 191 192 /* 7.2.1: unsigned little-endian 16-bit value. NOT USED IN KERNEL. */ 193 static __inline __unused uint16_t 194 isonum_721(const u_char *p) 195 { 196 return le16dec(p); 197 } 198 199 /* 7.2.2: unsigned big-endian 16-bit value. NOT USED IN KERNEL. */ 200 static __inline __unused uint16_t 201 isonum_722(const u_char *p) 202 { 203 return be16dec(p); 204 } 205 206 /* 7.2.3: unsigned both-endian (little, then big) 16-bit value */ 207 static __inline __unused uint16_t 208 isonum_723(const u_char *p) 209 { 210 #if BYTE_ORDER == BIG_ENDIAN 211 return be16dec(p + 2); 212 #else 213 return le16dec(p); 214 #endif 215 } 216 217 /* 7.3.1: unsigned little-endian 32-bit value. NOT USED IN KERNEL. */ 218 static __inline __unused uint32_t 219 isonum_731(const u_char *p) 220 { 221 return le32dec(p); 222 } 223 224 /* 7.3.2: unsigned big-endian 32-bit value. NOT USED IN KERNEL. */ 225 static __inline __unused uint32_t 226 isonum_732(const u_char *p) 227 { 228 return be32dec(p); 229 } 230 231 /* 7.3.3: unsigned both-endian (little, then big) 32-bit value */ 232 static __inline __unused uint32_t 233 isonum_733(const u_char *p) 234 { 235 #if BYTE_ORDER == BIG_ENDIAN 236 return be32dec(p + 4); 237 #else 238 return le32dec(p); 239 #endif 240 } 241 242 /* 243 * Associated files have a leading '='. 244 */ 245 #define ASSOCCHAR '=' 246 247 #endif /* _ISOFS_CD9660_ISO_H_ */ 248
Indexes created Sat Feb 21 08:20:20 UTC 2026