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 (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 #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
Indexes created Sat Sep 20 22:09:52 GMT 2025