1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
|
/* $OpenBSD: iso.h,v 1.14 2005/09/28 20:53:54 miod Exp $ */
/* $NetBSD: iso.h,v 1.20 1997/07/07 22:45:34 cgd Exp $ */
/*-
* Copyright (c) 1994
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley
* by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
* Support code is derived from software contributed to Berkeley
* by Atsushi Murai (amurai@spec.co.jp).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)iso.h 8.4 (Berkeley) 12/5/94
*/
/*
* Definitions describing ISO9660 file system structure, as well as
* the functions necessary to access fields of ISO9660 file system
* structures.
*/
#define ISODCL(from, to) (to - from + 1)
struct iso_volume_descriptor {
char type[ISODCL(1,1)]; /* 711 */
char id[ISODCL(2,6)];
char version[ISODCL(7,7)];
char data[ISODCL(8,2048)];
};
/* volume descriptor types */
#define ISO_VD_PRIMARY 1
#define ISO_VD_SUPPLEMENTARY 2
#define ISO_VD_END 255
#define ISO_STANDARD_ID "CD001"
#define ISO_ECMA_ID "CDW01"
struct iso_primary_descriptor {
char type [ISODCL ( 1, 1)]; /* 711 */
char id [ISODCL ( 2, 6)];
char version [ISODCL ( 7, 7)]; /* 711 */
char unused1 [ISODCL ( 8, 8)];
char system_id [ISODCL ( 9, 40)]; /* achars */
char volume_id [ISODCL ( 41, 72)]; /* dchars */
char unused2 [ISODCL ( 73, 80)];
char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
char unused3 [ISODCL ( 89, 120)];
char volume_set_size [ISODCL (121, 124)]; /* 723 */
char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
char logical_block_size [ISODCL (129, 132)]; /* 723 */
char path_table_size [ISODCL (133, 140)]; /* 733 */
char type_l_path_table [ISODCL (141, 144)]; /* 731 */
char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
char type_m_path_table [ISODCL (149, 152)]; /* 732 */
char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
char volume_set_id [ISODCL (191, 318)]; /* dchars */
char publisher_id [ISODCL (319, 446)]; /* achars */
char preparer_id [ISODCL (447, 574)]; /* achars */
char application_id [ISODCL (575, 702)]; /* achars */
char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
char file_structure_version [ISODCL (882, 882)]; /* 711 */
char unused4 [ISODCL (883, 883)];
char application_data [ISODCL (884, 1395)];
char unused5 [ISODCL (1396, 2048)];
};
#define ISO_DEFAULT_BLOCK_SHIFT 11
#define ISO_DEFAULT_BLOCK_SIZE (1<<ISO_DEFAULT_BLOCK_SHIFT)
/*
* Used by Microsoft Joliet extension to ISO9660. Almost the same
* as PVD, but byte position 8 is a flag, and 89-120 is for escape.
*/
struct iso_supplementary_descriptor {
char type [ISODCL ( 1, 1)]; /* 711 */
char id [ISODCL ( 2, 6)];
char version [ISODCL ( 7, 7)]; /* 711 */
char flags [ISODCL ( 8, 8)];
char system_id [ISODCL ( 9, 40)]; /* achars */
char volume_id [ISODCL ( 41, 72)]; /* dchars */
char unused2 [ISODCL ( 73, 80)];
char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
char escape [ISODCL ( 89, 120)];
char volume_set_size [ISODCL (121, 124)]; /* 723 */
char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
char logical_block_size [ISODCL (129, 132)]; /* 723 */
char path_table_size [ISODCL (133, 140)]; /* 733 */
char type_l_path_table [ISODCL (141, 144)]; /* 731 */
char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
char type_m_path_table [ISODCL (149, 152)]; /* 732 */
char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
char volume_set_id [ISODCL (191, 318)]; /* dchars */
char publisher_id [ISODCL (319, 446)]; /* achars */
char preparer_id [ISODCL (447, 574)]; /* achars */
char application_id [ISODCL (575, 702)]; /* achars */
char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
char file_structure_version [ISODCL (882, 882)]; /* 711 */
char unused4 [ISODCL (883, 883)];
char application_data [ISODCL (884, 1395)];
char unused5 [ISODCL (1396, 2048)];
};
struct iso_directory_record {
char length [ISODCL (1, 1)]; /* 711 */
char ext_attr_length [ISODCL (2, 2)]; /* 711 */
u_char extent [ISODCL (3, 10)]; /* 733 */
u_char size [ISODCL (11, 18)]; /* 733 */
char date [ISODCL (19, 25)]; /* 7 by 711 */
char flags [ISODCL (26, 26)];
char file_unit_size [ISODCL (27, 27)]; /* 711 */
char interleave [ISODCL (28, 28)]; /* 711 */
char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
char name_len [ISODCL (33, 33)]; /* 711 */
char name [1]; /* XXX */
};
/* can't take sizeof(iso_directory_record), because of possible alignment
of the last entry (34 instead of 33) */
#define ISO_DIRECTORY_RECORD_SIZE 33
struct iso_extended_attributes {
u_char owner [ISODCL (1, 4)]; /* 723 */
u_char group [ISODCL (5, 8)]; /* 723 */
u_char perm [ISODCL (9, 10)]; /* 9.5.3 */
char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */
char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */
char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */
char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */
char recfmt [ISODCL (79, 79)]; /* 711 */
char recattr [ISODCL (80, 80)]; /* 711 */
u_char reclen [ISODCL (81, 84)]; /* 723 */
char system_id [ISODCL (85, 116)]; /* achars */
char system_use [ISODCL (117, 180)];
char version [ISODCL (181, 181)]; /* 711 */
char len_esc [ISODCL (182, 182)]; /* 711 */
char reserved [ISODCL (183, 246)];
u_char len_au [ISODCL (247, 250)]; /* 723 */
};
static __inline int isonum_711(u_char *) __attribute__ ((__unused__));
static __inline int isonum_712(char *) __attribute__ ((__unused__));
static __inline int isonum_721(u_char *) __attribute__ ((__unused__));
static __inline int isonum_722(u_char *) __attribute__ ((__unused__));
static __inline int isonum_723(u_char *) __attribute__ ((__unused__));
static __inline int isonum_731(u_char *) __attribute__ ((__unused__));
static __inline int isonum_732(u_char *) __attribute__ ((__unused__));
static __inline int isonum_733(u_char *) __attribute__ ((__unused__));
/* 7.1.1: unsigned char */
static __inline int
isonum_711(u_char *p)
{
return *p;
}
/* 7.1.2: signed(?) char */
static __inline int
isonum_712(char *p)
{
return *p;
}
/* 7.2.1: unsigned little-endian 16-bit value. NOT USED IN KERNEL. */
static __inline int
isonum_721(p)
u_char *p;
{
#if !defined(__STRICT_ALIGNMENT) && (BYTE_ORDER == LITTLE_ENDIAN)
return *(u_int16_t *)p;
#else
return *p|((char)p[1] << 8);
#endif
}
/* 7.2.2: unsigned big-endian 16-bit value. NOT USED IN KERNEL. */
static __inline int
isonum_722(p)
unsigned char *p;
{
#if !defined(__STRICT_ALIGNMENT) && (BYTE_ORDER == BIG_ENDIAN)
return *(u_int16_t *)p;
#else
return ((char)*p << 8)|p[1];
#endif
}
/* 7.2.3: unsigned both-endian (little, then big) 16-bit value */
static __inline int
isonum_723(u_char *p)
{
#if !defined(__STRICT_ALIGNMENT) && \
((BYTE_ORDER == LITTLE_ENDIAN) || (BYTE_ORDER == BIG_ENDIAN))
#if BYTE_ORDER == LITTLE_ENDIAN
return *(u_int16_t *)p;
#else
return *(u_int16_t *)(p + 2);
#endif
#else /* __STRICT_ALIGNMENT or weird byte order */
return *p|(p[1] << 8);
#endif
}
/* 7.3.1: unsigned little-endian 32-bit value. NOT USED IN KERNEL. */
static __inline int
isonum_731(p)
u_char *p;
{
#if !defined(__STRICT_ALIGNMENT) && (BYTE_ORDER == LITTLE_ENDIAN)
return *(u_int32_t *)p;
#else
return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
#endif
}
/* 7.3.2: unsigned big-endian 32-bit value. NOT USED IN KERNEL. */
static __inline int
isonum_732(p)
unsigned char *p;
{
#if !defined(__STRICT_ALIGNMENT) && (BYTE_ORDER == BIG_ENDIAN)
return *(u_int32_t *)p;
#else
return (*p << 24)|(p[1] << 16)|(p[2] << 8)|p[3];
#endif
}
/* 7.3.3: unsigned both-endian (little, then big) 32-bit value */
static __inline int
isonum_733(u_char *p)
{
#if !defined(__STRICT_ALIGNMENT) && \
((BYTE_ORDER == LITTLE_ENDIAN) || (BYTE_ORDER == BIG_ENDIAN))
#if BYTE_ORDER == LITTLE_ENDIAN
return *(u_int32_t *)p;
#else
return *(u_int32_t *)(p + 4);
#endif
#else /* __STRICT_ALIGNMENT or weird byte order */
return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
#endif
}
/*
* Associated files have a leading '='.
*/
#define ASSOCCHAR '='
|
