FreeBSD/Linux Kernel Cross Reference
sys/isofs/cd9660/iso.h
1 /*-
2 * Copyright (c) 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley
6 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
7 * Support code is derived from software contributed to Berkeley
8 * by Atsushi Murai (amurai@spec.co.jp).
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)iso.h 8.6 (Berkeley) 5/10/95
39 * $FreeBSD: releng/5.2/sys/isofs/cd9660/iso.h 120492 2003-09-26 20:26:25Z fjoe $
40 */
41
42 #define ISODCL(from, to) (to - from + 1)
43
44 struct iso_volume_descriptor {
45 char type[ISODCL(1,1)]; /* 711 */
46 char id[ISODCL(2,6)];
47 char version[ISODCL(7,7)];
48 char unused[ISODCL(8,8)];
49 char type_sierra[ISODCL(9,9)]; /* 711 */
50 char id_sierra[ISODCL(10,14)];
51 char version_sierra[ISODCL(15,15)];
52 char data[ISODCL(16,2048)];
53 };
54
55 /* volume descriptor types */
56 #define ISO_VD_PRIMARY 1
57 #define ISO_VD_SUPPLEMENTARY 2
58 #define ISO_VD_END 255
59
60 #define ISO_STANDARD_ID "CD001"
61 #define ISO_ECMA_ID "CDW01"
62
63 #define ISO_SIERRA_ID "CDROM"
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 /*
103 * Used by Microsoft Joliet extension to ISO9660. Almost the same
104 * as PVD, but byte position 8 is a flag, and 89-120 is for escape.
105 */
106
107 struct iso_supplementary_descriptor {
108 char type [ISODCL ( 1, 1)]; /* 711 */
109 char id [ISODCL ( 2, 6)];
110 char version [ISODCL ( 7, 7)]; /* 711 */
111 char flags [ISODCL ( 8, 8)]; /* 711? */
112 char system_id [ISODCL ( 9, 40)]; /* achars */
113 char volume_id [ISODCL ( 41, 72)]; /* dchars */
114 char unused2 [ISODCL ( 73, 80)];
115 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
116 char escape [ISODCL ( 89, 120)];
117 char volume_set_size [ISODCL (121, 124)]; /* 723 */
118 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
119 char logical_block_size [ISODCL (129, 132)]; /* 723 */
120 char path_table_size [ISODCL (133, 140)]; /* 733 */
121 char type_l_path_table [ISODCL (141, 144)]; /* 731 */
122 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
123 char type_m_path_table [ISODCL (149, 152)]; /* 732 */
124 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
125 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
126 char volume_set_id [ISODCL (191, 318)]; /* dchars */
127 char publisher_id [ISODCL (319, 446)]; /* achars */
128 char preparer_id [ISODCL (447, 574)]; /* achars */
129 char application_id [ISODCL (575, 702)]; /* achars */
130 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
131 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
132 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
133 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
134 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
135 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
136 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
137 char file_structure_version [ISODCL (882, 882)]; /* 711 */
138 char unused4 [ISODCL (883, 883)];
139 char application_data [ISODCL (884, 1395)];
140 char unused5 [ISODCL (1396, 2048)];
141 };
142
143 struct iso_sierra_primary_descriptor {
144 char unknown1 [ISODCL ( 1, 8)]; /* 733 */
145 char type [ISODCL ( 9, 9)]; /* 711 */
146 char id [ISODCL ( 10, 14)];
147 char version [ISODCL ( 15, 15)]; /* 711 */
148 char unused1 [ISODCL ( 16, 16)];
149 char system_id [ISODCL ( 17, 48)]; /* achars */
150 char volume_id [ISODCL ( 49, 80)]; /* dchars */
151 char unused2 [ISODCL ( 81, 88)];
152 char volume_space_size [ISODCL ( 89, 96)]; /* 733 */
153 char unused3 [ISODCL ( 97, 128)];
154 char volume_set_size [ISODCL (129, 132)]; /* 723 */
155 char volume_sequence_number [ISODCL (133, 136)]; /* 723 */
156 char logical_block_size [ISODCL (137, 140)]; /* 723 */
157 char path_table_size [ISODCL (141, 148)]; /* 733 */
158 char type_l_path_table [ISODCL (149, 152)]; /* 731 */
159 char opt_type_l_path_table [ISODCL (153, 156)]; /* 731 */
160 char unknown2 [ISODCL (157, 160)]; /* 731 */
161 char unknown3 [ISODCL (161, 164)]; /* 731 */
162 char type_m_path_table [ISODCL (165, 168)]; /* 732 */
163 char opt_type_m_path_table [ISODCL (169, 172)]; /* 732 */
164 char unknown4 [ISODCL (173, 176)]; /* 732 */
165 char unknown5 [ISODCL (177, 180)]; /* 732 */
166 char root_directory_record [ISODCL (181, 214)]; /* 9.1 */
167 char volume_set_id [ISODCL (215, 342)]; /* dchars */
168 char publisher_id [ISODCL (343, 470)]; /* achars */
169 char preparer_id [ISODCL (471, 598)]; /* achars */
170 char application_id [ISODCL (599, 726)]; /* achars */
171 char copyright_id [ISODCL (727, 790)]; /* achars */
172 char creation_date [ISODCL (791, 806)]; /* ? */
173 char modification_date [ISODCL (807, 822)]; /* ? */
174 char expiration_date [ISODCL (823, 838)]; /* ? */
175 char effective_date [ISODCL (839, 854)]; /* ? */
176 char file_structure_version [ISODCL (855, 855)]; /* 711 */
177 char unused4 [ISODCL (856, 2048)];
178 };
179
180 struct iso_directory_record {
181 char length [ISODCL (1, 1)]; /* 711 */
182 char ext_attr_length [ISODCL (2, 2)]; /* 711 */
183 u_char extent [ISODCL (3, 10)]; /* 733 */
184 u_char size [ISODCL (11, 18)]; /* 733 */
185 char date [ISODCL (19, 25)]; /* 7 by 711 */
186 char flags [ISODCL (26, 26)];
187 char file_unit_size [ISODCL (27, 27)]; /* 711 */
188 char interleave [ISODCL (28, 28)]; /* 711 */
189 char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
190 char name_len [ISODCL (33, 33)]; /* 711 */
191 char name [1]; /* XXX */
192 };
193 /* can't take sizeof(iso_directory_record), because of possible alignment
194 of the last entry (34 instead of 33) */
195 #define ISO_DIRECTORY_RECORD_SIZE 33
196
197 struct iso_extended_attributes {
198 u_char owner [ISODCL (1, 4)]; /* 723 */
199 u_char group [ISODCL (5, 8)]; /* 723 */
200 u_char perm [ISODCL (9, 10)]; /* 9.5.3 */
201 char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */
202 char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */
203 char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */
204 char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */
205 char recfmt [ISODCL (79, 79)]; /* 711 */
206 char recattr [ISODCL (80, 80)]; /* 711 */
207 u_char reclen [ISODCL (81, 84)]; /* 723 */
208 char system_id [ISODCL (85, 116)]; /* achars */
209 char system_use [ISODCL (117, 180)];
210 char version [ISODCL (181, 181)]; /* 711 */
211 char len_esc [ISODCL (182, 182)]; /* 711 */
212 char reserved [ISODCL (183, 246)];
213 u_char len_au [ISODCL (247, 250)]; /* 723 */
214 };
215
216 #ifdef _KERNEL
217
218 /* CD-ROM Format type */
219 enum ISO_FTYPE { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP,
220 ISO_FTYPE_JOLIET, ISO_FTYPE_ECMA, ISO_FTYPE_HIGH_SIERRA };
221
222 #ifndef ISOFSMNT_ROOT
223 #define ISOFSMNT_ROOT 0
224 #endif
225
226 struct iso_mnt {
227 int im_flags;
228
229 struct mount *im_mountp;
230 dev_t im_dev;
231 struct vnode *im_devvp;
232
233 int logical_block_size;
234 int im_bshift;
235 int im_bmask;
236
237 int volume_space_size;
238
239 char root[ISODCL (157, 190)];
240 int root_extent;
241 int root_size;
242 enum ISO_FTYPE iso_ftype;
243
244 int rr_skip;
245 int rr_skip0;
246
247 int joliet_level;
248
249 void *im_d2l;
250 void *im_l2d;
251 };
252
253 #define VFSTOISOFS(mp) ((struct iso_mnt *)((mp)->mnt_data))
254
255 #define blkoff(imp, loc) ((loc) & (imp)->im_bmask)
256 #define lblktosize(imp, blk) ((blk) << (imp)->im_bshift)
257 #define lblkno(imp, loc) ((loc) >> (imp)->im_bshift)
258 #define blksize(imp, ip, lbn) ((imp)->logical_block_size)
259
260 int cd9660_vget_internal(struct mount *, ino_t, int, struct vnode **, int,
261 struct iso_directory_record *);
262 int cd9660_init(struct vfsconf *);
263 int cd9660_uninit(struct vfsconf *);
264 #define cd9660_sysctl ((int (*)(int *, u_int, void *, size_t *, void *, \
265 size_t, struct proc *))eopnotsupp)
266
267 extern vop_t **cd9660_vnodeop_p;
268 extern vop_t **cd9660_specop_p;
269 extern vop_t **cd9660_fifoop_p;
270
271 int isochar(u_char *, u_char *, int, u_short *, int *, int, void *);
272 int isofncmp(u_char *, int, u_char *, int, int, int, void *, void *);
273 void isofntrans(u_char *, int, u_char *, u_short *, int, int, int, int, void *);
274 ino_t isodirino(struct iso_directory_record *, struct iso_mnt *);
275 u_short sgetrune(const char *, size_t, char const **, int, void *);
276
277 #endif /* _KERNEL */
278
279 /*
280 * The isonum_xxx functions are inlined anyway, and could come handy even
281 * outside the kernel. Thus we don't hide them here.
282 */
283
284 static __inline int isonum_711(u_char *);
285 static __inline int
286 isonum_711(p)
287 u_char *p;
288 {
289 return *p;
290 }
291
292 static __inline int isonum_712(char *);
293 static __inline int
294 isonum_712(p)
295 char *p;
296 {
297 return *p;
298 }
299
300 #ifndef UNALIGNED_ACCESS
301
302 static __inline int isonum_723(u_char *);
303 static __inline int
304 isonum_723(p)
305 u_char *p;
306 {
307 return *p|(p[1] << 8);
308 }
309
310 static __inline int isonum_733(u_char *);
311 static __inline int
312 isonum_733(p)
313 u_char *p;
314 {
315 return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
316 }
317
318 #else /* UNALIGNED_ACCESS */
319
320 #if BYTE_ORDER == LITTLE_ENDIAN
321
322 static __inline int
323 isonum_723(p)
324 u_char *p
325 {
326 return *(u_int16t *)p;
327 }
328
329 static __inline int
330 isonum_733(p)
331 u_char *p;
332 {
333 return *(u_int32t *)p;
334 }
335
336 #endif
337
338 #if BYTE_ORDER == BIG_ENDIAN
339
340 static __inline int
341 isonum_723(p)
342 u_char *p
343 {
344 return *(u_int16t *)(p + 2);
345 }
346
347 static __inline int
348 isonum_733(p)
349 u_char *p;
350 {
351 return *(u_int32t *)(p + 4);
352 }
353
354 #endif
355
356 #endif /* UNALIGNED_ACCESS */
357
358 /*
359 * Associated files have a leading '='.
360 */
361 #define ASSOCCHAR '='
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