iso.h revision 1.9
1 /* $NetBSD: iso.h,v 1.9 2007/01/27 07:20:31 cbiere 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 struct iso_primary_descriptor { 66 char type [ISODCL ( 1, 1)]; /* 711 */ 67 char id [ISODCL ( 2, 6)]; 68 char version [ISODCL ( 7, 7)]; /* 711 */ 69 char unused1 [ISODCL ( 8, 8)]; 70 char system_id [ISODCL ( 9, 40)]; /* achars */ 71 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 72 char unused2 [ISODCL ( 73, 80)]; 73 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 74 char unused3 [ISODCL ( 89, 120)]; 75 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 76 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 77 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 78 char path_table_size [ISODCL (133, 140)]; /* 733 */ 79 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 80 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 81 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 82 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 83 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 84 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 85 char publisher_id [ISODCL (319, 446)]; /* achars */ 86 char preparer_id [ISODCL (447, 574)]; /* achars */ 87 char application_id [ISODCL (575, 702)]; /* achars */ 88 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 89 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 90 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 91 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 92 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 93 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 94 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 95 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 96 char unused4 [ISODCL (883, 883)]; 97 char application_data [ISODCL (884, 1395)]; 98 char unused5 [ISODCL (1396, 2048)]; 99 }; 100 #define ISO_DEFAULT_BLOCK_SIZE 2048 101 102 struct iso_supplementary_descriptor { 103 char type [ISODCL ( 1, 1)]; /* 711 */ 104 char id [ISODCL ( 2, 6)]; 105 char version [ISODCL ( 7, 7)]; /* 711 */ 106 char flags [ISODCL ( 8, 8)]; /* 711? */ 107 char system_id [ISODCL ( 9, 40)]; /* achars */ 108 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 109 char unused2 [ISODCL ( 73, 80)]; 110 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 111 char escape [ISODCL ( 89, 120)]; 112 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 113 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 114 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 115 char path_table_size [ISODCL (133, 140)]; /* 733 */ 116 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 117 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 118 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 119 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 120 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 121 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 122 char publisher_id [ISODCL (319, 446)]; /* achars */ 123 char preparer_id [ISODCL (447, 574)]; /* achars */ 124 char application_id [ISODCL (575, 702)]; /* achars */ 125 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 126 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 127 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 128 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 129 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 130 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 131 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 132 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 133 char unused4 [ISODCL (883, 883)]; 134 char application_data [ISODCL (884, 1395)]; 135 char unused5 [ISODCL (1396, 2048)]; 136 }; 137 138 struct iso_directory_record { 139 char length [ISODCL (1, 1)]; /* 711 */ 140 char ext_attr_length [ISODCL (2, 2)]; /* 711 */ 141 u_char extent [ISODCL (3, 10)]; /* 733 */ 142 u_char size [ISODCL (11, 18)]; /* 733 */ 143 char date [ISODCL (19, 25)]; /* 7 by 711 */ 144 char flags [ISODCL (26, 26)]; 145 char file_unit_size [ISODCL (27, 27)]; /* 711 */ 146 char interleave [ISODCL (28, 28)]; /* 711 */ 147 char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ 148 char name_len [ISODCL (33, 33)]; /* 711 */ 149 char name [1]; /* XXX */ 150 }; 151 /* can't take sizeof(iso_directory_record), because of possible alignment 152 of the last entry (34 instead of 33) */ 153 #define ISO_DIRECTORY_RECORD_SIZE 33 154 155 struct iso_extended_attributes { 156 u_char owner [ISODCL (1, 4)]; /* 723 */ 157 u_char group [ISODCL (5, 8)]; /* 723 */ 158 u_char perm [ISODCL (9, 10)]; /* 9.5.3 */ 159 char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */ 160 char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */ 161 char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */ 162 char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */ 163 char recfmt [ISODCL (79, 79)]; /* 711 */ 164 char recattr [ISODCL (80, 80)]; /* 711 */ 165 u_char reclen [ISODCL (81, 84)]; /* 723 */ 166 char system_id [ISODCL (85, 116)]; /* achars */ 167 char system_use [ISODCL (117, 180)]; 168 char version [ISODCL (181, 181)]; /* 711 */ 169 char len_esc [ISODCL (182, 182)]; /* 711 */ 170 char reserved [ISODCL (183, 246)]; 171 u_char len_au [ISODCL (247, 250)]; /* 723 */ 172 }; 173 174 /* 7.1.1: unsigned char */ 175 static __inline __unused int 176 isonum_711(const u_char *p) 177 { 178 return *p; 179 } 180 181 /* 7.1.2: signed char */ 182 static __inline __unused int 183 isonum_712(const u_char *p) 184 { 185 return (signed char) *p; 186 } 187 188 /* 7.2.1: unsigned little-endian 16-bit value. NOT USED IN KERNEL. */ 189 static __inline __unused uint16_t 190 isonum_721(const u_char *p) 191 { 192 return le16dec(p); 193 } 194 195 /* 7.2.2: unsigned big-endian 16-bit value. NOT USED IN KERNEL. */ 196 static __inline __unused uint16_t 197 isonum_722(const u_char *p) 198 { 199 return be16dec(p); 200 } 201 202 /* 7.2.3: unsigned both-endian (little, then big) 16-bit value */ 203 static __inline __unused uint16_t 204 isonum_723(const u_char *p) 205 { 206 #if BYTE_ORDER == BIG_ENDIAN 207 return be16dec(p + 2); 208 #else 209 return le16dec(p); 210 #endif 211 } 212 213 /* 7.3.1: unsigned little-endian 32-bit value. NOT USED IN KERNEL. */ 214 static __inline __unused uint32_t 215 isonum_731(const u_char *p) 216 { 217 return le32dec(p); 218 } 219 220 /* 7.3.2: unsigned big-endian 32-bit value. NOT USED IN KERNEL. */ 221 static __inline __unused uint32_t 222 isonum_732(const u_char *p) 223 { 224 return be32dec(p); 225 } 226 227 /* 7.3.3: unsigned both-endian (little, then big) 32-bit value */ 228 static __inline __unused uint32_t 229 isonum_733(const u_char *p) 230 { 231 #if BYTE_ORDER == BIG_ENDIAN 232 return be32dec(p + 4); 233 #else 234 return le32dec(p); 235 #endif 236 } 237 238 /* 239 * Associated files have a leading '='. 240 */ 241 #define ASSOCCHAR '=' 242 243 #endif /* _ISOFS_CD9660_ISO_H_ */ 244
Indexes created Tue Sep 30 20:09:53 GMT 2025