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: src/sys/isofs/cd9660/iso.h,v 1.19.2.1 2000/07/08 14:35:56 bp Exp $ 40 * $DragonFly: src/sys/vfs/isofs/cd9660/iso.h,v 1.8 2006/09/10 01:26:41 dillon Exp $ 41 */ 42 43 #define ISODCL(from, to) (to - from + 1) 44 45 struct iso_volume_descriptor { 46 char type[ISODCL(1,1)]; /* 711 */ 47 char id[ISODCL(2,6)]; 48 char version[ISODCL(7,7)]; 49 char unused[ISODCL(8,8)]; 50 char type_sierra[ISODCL(9,9)]; /* 711 */ 51 char id_sierra[ISODCL(10,14)]; 52 char version_sierra[ISODCL(15,15)]; 53 char data[ISODCL(16,2048)]; 54 }; 55 56 /* volume descriptor types */ 57 #define ISO_VD_PRIMARY 1 58 #define ISO_VD_SUPPLEMENTARY 2 59 #define ISO_VD_END 255 60 61 #define ISO_STANDARD_ID "CD001" 62 #define ISO_ECMA_ID "CDW01" 63 64 #define ISO_SIERRA_ID "CDROM" 65 66 struct iso_primary_descriptor { 67 char type [ISODCL ( 1, 1)]; /* 711 */ 68 char id [ISODCL ( 2, 6)]; 69 char version [ISODCL ( 7, 7)]; /* 711 */ 70 char unused1 [ISODCL ( 8, 8)]; 71 char system_id [ISODCL ( 9, 40)]; /* achars */ 72 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 73 char unused2 [ISODCL ( 73, 80)]; 74 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 75 char unused3 [ISODCL ( 89, 120)]; 76 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 77 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 78 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 79 char path_table_size [ISODCL (133, 140)]; /* 733 */ 80 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 81 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 82 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 83 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 84 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 85 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 86 char publisher_id [ISODCL (319, 446)]; /* achars */ 87 char preparer_id [ISODCL (447, 574)]; /* achars */ 88 char application_id [ISODCL (575, 702)]; /* achars */ 89 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 90 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 91 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 92 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 93 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 94 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 95 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 96 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 97 char unused4 [ISODCL (883, 883)]; 98 char application_data [ISODCL (884, 1395)]; 99 char unused5 [ISODCL (1396, 2048)]; 100 }; 101 #define ISO_DEFAULT_BLOCK_SIZE 2048 102 103 /* 104 * Used by Microsoft Joliet extension to ISO9660. Almost the same 105 * as PVD, but byte position 8 is a flag, and 89-120 is for escape. 106 */ 107 108 struct iso_supplementary_descriptor { 109 char type [ISODCL ( 1, 1)]; /* 711 */ 110 char id [ISODCL ( 2, 6)]; 111 char version [ISODCL ( 7, 7)]; /* 711 */ 112 char flags [ISODCL ( 8, 8)]; /* 711? */ 113 char system_id [ISODCL ( 9, 40)]; /* achars */ 114 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 115 char unused2 [ISODCL ( 73, 80)]; 116 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 117 char escape [ISODCL ( 89, 120)]; 118 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 119 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 120 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 121 char path_table_size [ISODCL (133, 140)]; /* 733 */ 122 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 123 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 124 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 125 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 126 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 127 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 128 char publisher_id [ISODCL (319, 446)]; /* achars */ 129 char preparer_id [ISODCL (447, 574)]; /* achars */ 130 char application_id [ISODCL (575, 702)]; /* achars */ 131 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 132 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 133 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 134 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 135 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 136 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 137 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 138 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 139 char unused4 [ISODCL (883, 883)]; 140 char application_data [ISODCL (884, 1395)]; 141 char unused5 [ISODCL (1396, 2048)]; 142 }; 143 144 struct iso_sierra_primary_descriptor { 145 char unknown1 [ISODCL ( 1, 8)]; /* 733 */ 146 char type [ISODCL ( 9, 9)]; /* 711 */ 147 char id [ISODCL ( 10, 14)]; 148 char version [ISODCL ( 15, 15)]; /* 711 */ 149 char unused1 [ISODCL ( 16, 16)]; 150 char system_id [ISODCL ( 17, 48)]; /* achars */ 151 char volume_id [ISODCL ( 49, 80)]; /* dchars */ 152 char unused2 [ISODCL ( 81, 88)]; 153 char volume_space_size [ISODCL ( 89, 96)]; /* 733 */ 154 char unused3 [ISODCL ( 97, 128)]; 155 char volume_set_size [ISODCL (129, 132)]; /* 723 */ 156 char volume_sequence_number [ISODCL (133, 136)]; /* 723 */ 157 char logical_block_size [ISODCL (137, 140)]; /* 723 */ 158 char path_table_size [ISODCL (141, 148)]; /* 733 */ 159 char type_l_path_table [ISODCL (149, 152)]; /* 731 */ 160 char opt_type_l_path_table [ISODCL (153, 156)]; /* 731 */ 161 char unknown2 [ISODCL (157, 160)]; /* 731 */ 162 char unknown3 [ISODCL (161, 164)]; /* 731 */ 163 char type_m_path_table [ISODCL (165, 168)]; /* 732 */ 164 char opt_type_m_path_table [ISODCL (169, 172)]; /* 732 */ 165 char unknown4 [ISODCL (173, 176)]; /* 732 */ 166 char unknown5 [ISODCL (177, 180)]; /* 732 */ 167 char root_directory_record [ISODCL (181, 214)]; /* 9.1 */ 168 char volume_set_id [ISODCL (215, 342)]; /* dchars */ 169 char publisher_id [ISODCL (343, 470)]; /* achars */ 170 char preparer_id [ISODCL (471, 598)]; /* achars */ 171 char application_id [ISODCL (599, 726)]; /* achars */ 172 char copyright_id [ISODCL (727, 790)]; /* achars */ 173 char creation_date [ISODCL (791, 806)]; /* ? */ 174 char modification_date [ISODCL (807, 822)]; /* ? */ 175 char expiration_date [ISODCL (823, 838)]; /* ? */ 176 char effective_date [ISODCL (839, 854)]; /* ? */ 177 char file_structure_version [ISODCL (855, 855)]; /* 711 */ 178 char unused4 [ISODCL (856, 2048)]; 179 }; 180 181 struct iso_directory_record { 182 char length [ISODCL (1, 1)]; /* 711 */ 183 char ext_attr_length [ISODCL (2, 2)]; /* 711 */ 184 u_char extent [ISODCL (3, 10)]; /* 733 */ 185 u_char size [ISODCL (11, 18)]; /* 733 */ 186 char date [ISODCL (19, 25)]; /* 7 by 711 */ 187 char flags [ISODCL (26, 26)]; 188 char file_unit_size [ISODCL (27, 27)]; /* 711 */ 189 char interleave [ISODCL (28, 28)]; /* 711 */ 190 char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ 191 char name_len [ISODCL (33, 33)]; /* 711 */ 192 char name [1]; /* XXX */ 193 }; 194 /* can't take sizeof(iso_directory_record), because of possible alignment 195 of the last entry (34 instead of 33) */ 196 #define ISO_DIRECTORY_RECORD_SIZE 33 197 198 struct iso_extended_attributes { 199 u_char owner [ISODCL (1, 4)]; /* 723 */ 200 u_char group [ISODCL (5, 8)]; /* 723 */ 201 u_char perm [ISODCL (9, 10)]; /* 9.5.3 */ 202 char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */ 203 char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */ 204 char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */ 205 char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */ 206 char recfmt [ISODCL (79, 79)]; /* 711 */ 207 char recattr [ISODCL (80, 80)]; /* 711 */ 208 u_char reclen [ISODCL (81, 84)]; /* 723 */ 209 char system_id [ISODCL (85, 116)]; /* achars */ 210 char system_use [ISODCL (117, 180)]; 211 char version [ISODCL (181, 181)]; /* 711 */ 212 char len_esc [ISODCL (182, 182)]; /* 711 */ 213 char reserved [ISODCL (183, 246)]; 214 u_char len_au [ISODCL (247, 250)]; /* 723 */ 215 }; 216 217 #ifdef _KERNEL 218 219 /* CD-ROM Format type */ 220 enum ISO_FTYPE { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, 221 ISO_FTYPE_JOLIET, ISO_FTYPE_ECMA, ISO_FTYPE_HIGH_SIERRA }; 222 223 #ifndef ISOFSMNT_ROOT 224 #define ISOFSMNT_ROOT 0 225 #endif 226 227 struct iso_mnt { 228 int im_flags; 229 230 struct mount *im_mountp; 231 cdev_t im_dev; 232 struct vnode *im_devvp; 233 234 int logical_block_size; 235 int im_bshift; 236 int im_bmask; 237 238 int volume_space_size; 239 struct netexport im_export; 240 241 char root[ISODCL (157, 190)]; 242 int root_extent; 243 int root_size; 244 enum ISO_FTYPE iso_ftype; 245 246 int rr_skip; 247 int rr_skip0; 248 249 int joliet_level; 250 251 void *im_d2l; 252 void *im_l2d; 253 }; 254 255 #define VFSTOISOFS(mp) ((struct iso_mnt *)((mp)->mnt_data)) 256 257 #define blkoff(imp, loc) ((loc) & (imp)->im_bmask) 258 #define lblktosize(imp, blk) ((blk) << (imp)->im_bshift) 259 #define lblktooff(imp, blk) ((off_t)(blk) << (imp)->im_bshift) 260 #define lblkno(imp, loc) ((loc) >> (imp)->im_bshift) 261 #define blksize(imp, ip, lbn) ((imp)->logical_block_size) 262 263 int cd9660_vget_internal (struct mount *, ino_t, struct vnode **, int, 264 struct iso_directory_record *); 265 int cd9660_init (struct vfsconf *); 266 int cd9660_uninit (struct vfsconf *); 267 #define cd9660_sysctl ((int (*) (int *, u_int, void *, size_t *, void *, \ 268 size_t, struct proc *))eopnotsupp) 269 270 int isochar(u_char *, u_char *, int, u_short *, int *, int, void *); 271 int isofncmp(u_char *, int, u_char *, int, int, int, void *, void *); 272 void isofntrans(u_char *, int, u_char *, u_short *, int, int, int, int, void *); 273 ino_t isodirino (struct iso_directory_record *, struct iso_mnt *); 274 u_short sgetrune(const char *, size_t, char const **, int, void *); 275 276 #endif /* _KERNEL */ 277 278 /* 279 * The isonum_xxx functions are inlined anyway, and could come handy even 280 * outside the kernel. Thus we don't hide them here. 281 */ 282 283 static __inline uint8_t 284 isonum_711(unsigned char *p) 285 { 286 return p[0]; 287 } 288 289 static __inline uint8_t 290 isonum_712(unsigned char *p) 291 { 292 return p[0]; 293 } 294 295 #ifndef UNALIGNED_ACCESS 296 297 static __inline uint16_t 298 isonum_723(unsigned char *p) 299 { 300 return (p[0] | p[1] << 8); 301 } 302 303 static __inline uint32_t 304 isonum_733(unsigned char *p) 305 { 306 return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24); 307 } 308 309 #else /* UNALIGNED_ACCESS */ 310 311 #if BYTE_ORDER == LITTLE_ENDIAN 312 313 static __inline int 314 isonum_723(u_char *p) 315 { 316 return *(u_int16t *)p; 317 } 318 319 static __inline int 320 isonum_733(u_char *p) 321 { 322 return *(u_int32t *)p; 323 } 324 325 #endif 326 327 #if BYTE_ORDER == BIG_ENDIAN 328 329 static __inline int 330 isonum_723(u_char *p) 331 { 332 return *(u_int16t *)(p + 2); 333 } 334 335 static __inline int 336 isonum_733(u_char *p) 337 { 338 return *(u_int32t *)(p + 4); 339 } 340 341 #endif 342 343 #endif /* UNALIGNED_ACCESS */ 344 345 /* 346 * Associated files have a leading '='. 347 */ 348 #define ASSOCCHAR '=' 349