iso.h revision 55206
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: head/sys/fs/cd9660/iso.h 55206 1999-12-29 05:07:58Z peter $ 40 */ 41 42#define ISODCL(from, to) (to - from + 1) 43 44struct 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 65struct 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 107struct 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 143struct 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 180struct 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 197struct 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 */ 219enum 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 226struct 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 struct netexport im_export; 239 240 char root[ISODCL (157, 190)]; 241 int root_extent; 242 int root_size; 243 enum ISO_FTYPE iso_ftype; 244 245 int rr_skip; 246 int rr_skip0; 247 248 int joliet_level; 249}; 250 251#define VFSTOISOFS(mp) ((struct iso_mnt *)((mp)->mnt_data)) 252 253#define blkoff(imp, loc) ((loc) & (imp)->im_bmask) 254#define lblktosize(imp, blk) ((blk) << (imp)->im_bshift) 255#define lblkno(imp, loc) ((loc) >> (imp)->im_bshift) 256#define blksize(imp, ip, lbn) ((imp)->logical_block_size) 257 258int cd9660_vget_internal __P((struct mount *, ino_t, struct vnode **, int, 259 struct iso_directory_record *)); 260int cd9660_init __P((struct vfsconf *)); 261#define cd9660_sysctl ((int (*) __P((int *, u_int, void *, size_t *, void *, \ 262 size_t, struct proc *)))eopnotsupp) 263 264extern vop_t **cd9660_vnodeop_p; 265extern vop_t **cd9660_specop_p; 266extern vop_t **cd9660_fifoop_p; 267 268int isochar __P((u_char *, u_char *, int, u_char *)); 269int isofncmp __P((u_char *, int, u_char *, int, int)); 270void isofntrans __P((u_char *, int, u_char *, u_short *, int, int, int)); 271ino_t isodirino __P((struct iso_directory_record *, struct iso_mnt *)); 272 273#endif /* _KERNEL */ 274 275/* 276 * The isonum_xxx functions are inlined anyway, and could come handy even 277 * outside the kernel. Thus we don't hide them here. 278 */ 279 280static __inline int isonum_711 __P((u_char *)); 281static __inline int 282isonum_711(p) 283 u_char *p; 284{ 285 return *p; 286} 287 288static __inline int isonum_712 __P((char *)); 289static __inline int 290isonum_712(p) 291 char *p; 292{ 293 return *p; 294} 295 296#ifndef UNALIGNED_ACCESS 297 298static __inline int isonum_723 __P((u_char *)); 299static __inline int 300isonum_723(p) 301 u_char *p; 302{ 303 return *p|(p[1] << 8); 304} 305 306static __inline int isonum_733 __P((u_char *)); 307static __inline int 308isonum_733(p) 309 u_char *p; 310{ 311 return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24); 312} 313 314#else /* UNALIGNED_ACCESS */ 315 316#if BYTE_ORDER == LITTLE_ENDIAN 317 318static __inline int 319isonum_723(p) 320 u_char *p 321{ 322 return *(u_int16t *)p; 323} 324 325static __inline int 326isonum_733(p) 327 u_char *p; 328{ 329 return *(u_int32t *)p; 330} 331 332#endif 333 334#if BYTE_ORDER == BIG_ENDIAN 335 336static __inline int 337isonum_723(p) 338 u_char *p 339{ 340 return *(u_int16t *)(p + 2); 341} 342 343static __inline int 344isonum_733(p) 345 u_char *p; 346{ 347 return *(u_int32t *)(p + 4); 348} 349 350#endif 351 352#endif /* UNALIGNED_ACCESS */ 353 354/* 355 * Associated files have a leading '='. 356 */ 357#define ASSOCCHAR '=' 358