1 /* 2 * SPDX-License-Identifier: BSD-3-Clause 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 #ifndef ISO_H 40 #define ISO_H 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 uchar_t 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 uchar_t 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 } __packed; 100 #define ISO_DEFAULT_BLOCK_SHIFT 11 101 #define ISO_DEFAULT_BLOCK_SIZE (1 << ISO_DEFAULT_BLOCK_SHIFT) 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 uchar_t length [ISODCL(1, 1)]; /* 711 */ 183 uchar_t ext_attr_length [ISODCL(2, 2)]; /* 711 */ 184 uchar_t extent [ISODCL(3, 10)]; /* 733 */ 185 uchar_t size [ISODCL(11, 18)]; /* 733 */ 186 char date [ISODCL(19, 25)]; /* 7 by 711 */ 187 uchar_t 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 uchar_t name_len [ISODCL(33, 33)]; /* 711 */ 192 char name [1]; /* XXX */ 193 } __packed; 194 /* 195 * can't take sizeof(iso_directory_record), because of possible alignment 196 * of the last entry (34 instead of 33) 197 */ 198 #define ISO_DIRECTORY_RECORD_SIZE 33 199 200 struct iso_extended_attributes { 201 uchar_t owner [ISODCL(1, 4)]; /* 723 */ 202 uchar_t group [ISODCL(5, 8)]; /* 723 */ 203 uchar_t perm [ISODCL(9, 10)]; /* 9.5.3 */ 204 char ctime [ISODCL(11, 27)]; /* 8.4.26.1 */ 205 char mtime [ISODCL(28, 44)]; /* 8.4.26.1 */ 206 char xtime [ISODCL(45, 61)]; /* 8.4.26.1 */ 207 char ftime [ISODCL(62, 78)]; /* 8.4.26.1 */ 208 char recfmt [ISODCL(79, 79)]; /* 711 */ 209 char recattr [ISODCL(80, 80)]; /* 711 */ 210 uchar_t reclen [ISODCL(81, 84)]; /* 723 */ 211 char system_id [ISODCL(85, 116)]; /* achars */ 212 char system_use [ISODCL(117, 180)]; 213 char version [ISODCL(181, 181)]; /* 711 */ 214 char len_esc [ISODCL(182, 182)]; /* 711 */ 215 char reserved [ISODCL(183, 246)]; 216 uchar_t len_au [ISODCL(247, 250)]; /* 723 */ 217 }; 218 219 #ifdef _KERNEL 220 221 /* CD-ROM Format type */ 222 enum ISO_FTYPE { 223 ISO_FTYPE_DEFAULT, 224 ISO_FTYPE_9660, 225 ISO_FTYPE_RRIP, 226 ISO_FTYPE_JOLIET, 227 ISO_FTYPE_ECMA, 228 ISO_FTYPE_HIGH_SIERRA 229 }; 230 231 #ifndef ISOFSMNT_ROOT 232 #define ISOFSMNT_ROOT 0 233 #endif 234 235 /* 236 * When ino_t becomes 64-bit, we can remove this definition in favor of ino_t. 237 */ 238 typedef __uint64_t cd_ino_t; 239 240 struct iso_mnt { 241 uint64_t im_flags; 242 243 struct mount *im_mountp; 244 struct cdev *im_dev; 245 struct vnode *im_devvp; 246 247 struct g_consumer *im_cp; 248 struct bufobj *im_bo; 249 250 int logical_block_size; 251 int im_bshift; 252 int im_bmask; 253 254 int volume_space_size; 255 256 char root[ISODCL(157, 190)]; 257 int root_extent; 258 int root_size; 259 enum ISO_FTYPE iso_ftype; 260 261 int rr_skip; 262 int rr_skip0; 263 264 int joliet_level; 265 266 void *im_d2l; 267 void *im_l2d; 268 }; 269 270 struct ifid { 271 ushort_t ifid_len; 272 ushort_t ifid_pad; 273 cd_ino_t ifid_ino; 274 long ifid_start; 275 }; 276 277 #define VFSTOISOFS(mp) ((struct iso_mnt *)((mp)->mnt_data)) 278 279 #define blkoff(imp, loc) ((loc) & (imp)->im_bmask) 280 #define lblktosize(imp, blk) ((blk) << (imp)->im_bshift) 281 #define lblkno(imp, loc) ((loc) >> (imp)->im_bshift) 282 #define blksize(imp, ip, lbn) ((imp)->logical_block_size) 283 284 int cd9660_vget_internal(struct mount *, cd_ino_t, int, struct vnode **, int, 285 struct iso_directory_record *); 286 #define cd9660_sysctl ((int (*)(int *, u_int, void *, size_t *, void *, \ 287 size_t, struct proc *))eopnotsupp) 288 289 extern struct vop_vector cd9660_vnodeops; 290 extern struct vop_vector cd9660_fifoops; 291 292 int isochar(uchar_t *, uchar_t *, int, ushort_t *, int *, int, void *); 293 int isofncmp(uchar_t *, int, uchar_t *, int, int, int, void *, void *); 294 void isofntrans(uchar_t *, int, uchar_t *, ushort_t *, int, int, int, int, void *); 295 cd_ino_t isodirino(struct iso_directory_record *, struct iso_mnt *); 296 ushort_t sgetrune(const char *, size_t, char const **, int, void *); 297 298 #endif /* _KERNEL */ 299 300 /* 301 * The isonum_xxx functions are inlined anyway, and could come handy even 302 * outside the kernel. Thus we don't hide them here. 303 */ 304 305 /* 306 * 7xy 307 * x -> 1 = 8 bits, 2 = 16 bits, 3 = 32 bits 308 * y -> 1 = little-endian, 2 = big-endian, 3 = both (le then be) 309 */ 310 311 static __inline uint8_t 312 isonum_711(const unsigned char *p) 313 { 314 315 return (p[0]); 316 } 317 318 static __inline int8_t 319 isonum_712(const unsigned char *p) 320 { 321 322 return ((signed char)p[0]); 323 } 324 325 static __inline uint8_t 326 isonum_713(const unsigned char *p) 327 { 328 329 return (p[0]); 330 } 331 332 static __inline uint16_t 333 isonum_721(const unsigned char *p) 334 { 335 336 return (p[0] | p[1] << 8); 337 } 338 339 static __inline uint16_t 340 isonum_722(const unsigned char *p) 341 { 342 343 return (p[1] | p[0] << 8); 344 } 345 346 static __inline uint16_t 347 isonum_723(const unsigned char *p) 348 { 349 350 return (p[0] | p[1] << 8); 351 } 352 353 static __inline uint32_t 354 isonum_731(const unsigned char *p) 355 { 356 357 return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24); 358 } 359 360 static __inline uint32_t 361 isonum_732(const unsigned char *p) 362 { 363 364 return (p[3] | p[2] << 8 | p[1] << 16 | p[0] << 24); 365 } 366 367 static __inline uint32_t 368 isonum_733(const unsigned char *p) 369 { 370 371 return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24); 372 } 373 374 /* 375 * Associated files have a leading '='. 376 */ 377 #define ASSOCCHAR '=' 378 379 #endif /* ISO_H */ 380