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 | |