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 * $FreeBSD$ 38 */ 39 40 #define ISODCL(from, to) (to - from + 1) 41 42 struct iso_volume_descriptor { 43 char type[ISODCL(1,1)]; /* 711 */ 44 char id[ISODCL(2,6)]; 45 char version[ISODCL(7,7)]; 46 char unused[ISODCL(8,8)]; 47 char type_sierra[ISODCL(9,9)]; /* 711 */ 48 char id_sierra[ISODCL(10,14)]; 49 char version_sierra[ISODCL(15,15)]; 50 char data[ISODCL(16,2048)]; 51 }; 52 53 /* volume descriptor types */ 54 #define ISO_VD_PRIMARY 1 55 #define ISO_VD_SUPPLEMENTARY 2 56 #define ISO_VD_END 255 57 58 #define ISO_STANDARD_ID "CD001" 59 #define ISO_ECMA_ID "CDW01" 60 61 #define ISO_SIERRA_ID "CDROM" 62 63 struct iso_primary_descriptor { 64 char type [ISODCL ( 1, 1)]; /* 711 */ 65 char id [ISODCL ( 2, 6)]; 66 char version [ISODCL ( 7, 7)]; /* 711 */ 67 char unused1 [ISODCL ( 8, 8)]; 68 char system_id [ISODCL ( 9, 40)]; /* achars */ 69 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 70 char unused2 [ISODCL ( 73, 80)]; 71 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 72 char unused3 [ISODCL ( 89, 120)]; 73 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 74 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 75 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 76 char path_table_size [ISODCL (133, 140)]; /* 733 */ 77 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 78 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 79 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 80 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 81 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 82 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 83 char publisher_id [ISODCL (319, 446)]; /* achars */ 84 char preparer_id [ISODCL (447, 574)]; /* achars */ 85 char application_id [ISODCL (575, 702)]; /* achars */ 86 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 87 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 88 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 89 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 90 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 91 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 92 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 93 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 94 char unused4 [ISODCL (883, 883)]; 95 char application_data [ISODCL (884, 1395)]; 96 char unused5 [ISODCL (1396, 2048)]; 97 }; 98 #define ISO_DEFAULT_BLOCK_SIZE 2048 99 100 /* 101 * Used by Microsoft Joliet extension to ISO9660. Almost the same 102 * as PVD, but byte position 8 is a flag, and 89-120 is for escape. 103 */ 104 105 struct iso_supplementary_descriptor { 106 char type [ISODCL ( 1, 1)]; /* 711 */ 107 char id [ISODCL ( 2, 6)]; 108 char version [ISODCL ( 7, 7)]; /* 711 */ 109 char flags [ISODCL ( 8, 8)]; /* 711? */ 110 char system_id [ISODCL ( 9, 40)]; /* achars */ 111 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 112 char unused2 [ISODCL ( 73, 80)]; 113 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 114 char escape [ISODCL ( 89, 120)]; 115 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 116 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 117 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 118 char path_table_size [ISODCL (133, 140)]; /* 733 */ 119 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 120 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 121 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 122 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 123 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 124 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 125 char publisher_id [ISODCL (319, 446)]; /* achars */ 126 char preparer_id [ISODCL (447, 574)]; /* achars */ 127 char application_id [ISODCL (575, 702)]; /* achars */ 128 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 129 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 130 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 131 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 132 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 133 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 134 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 135 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 136 char unused4 [ISODCL (883, 883)]; 137 char application_data [ISODCL (884, 1395)]; 138 char unused5 [ISODCL (1396, 2048)]; 139 }; 140 141 struct iso_sierra_primary_descriptor { 142 char unknown1 [ISODCL ( 1, 8)]; /* 733 */ 143 char type [ISODCL ( 9, 9)]; /* 711 */ 144 char id [ISODCL ( 10, 14)]; 145 char version [ISODCL ( 15, 15)]; /* 711 */ 146 char unused1 [ISODCL ( 16, 16)]; 147 char system_id [ISODCL ( 17, 48)]; /* achars */ 148 char volume_id [ISODCL ( 49, 80)]; /* dchars */ 149 char unused2 [ISODCL ( 81, 88)]; 150 char volume_space_size [ISODCL ( 89, 96)]; /* 733 */ 151 char unused3 [ISODCL ( 97, 128)]; 152 char volume_set_size [ISODCL (129, 132)]; /* 723 */ 153 char volume_sequence_number [ISODCL (133, 136)]; /* 723 */ 154 char logical_block_size [ISODCL (137, 140)]; /* 723 */ 155 char path_table_size [ISODCL (141, 148)]; /* 733 */ 156 char type_l_path_table [ISODCL (149, 152)]; /* 731 */ 157 char opt_type_l_path_table [ISODCL (153, 156)]; /* 731 */ 158 char unknown2 [ISODCL (157, 160)]; /* 731 */ 159 char unknown3 [ISODCL (161, 164)]; /* 731 */ 160 char type_m_path_table [ISODCL (165, 168)]; /* 732 */ 161 char opt_type_m_path_table [ISODCL (169, 172)]; /* 732 */ 162 char unknown4 [ISODCL (173, 176)]; /* 732 */ 163 char unknown5 [ISODCL (177, 180)]; /* 732 */ 164 char root_directory_record [ISODCL (181, 214)]; /* 9.1 */ 165 char volume_set_id [ISODCL (215, 342)]; /* dchars */ 166 char publisher_id [ISODCL (343, 470)]; /* achars */ 167 char preparer_id [ISODCL (471, 598)]; /* achars */ 168 char application_id [ISODCL (599, 726)]; /* achars */ 169 char copyright_id [ISODCL (727, 790)]; /* achars */ 170 char creation_date [ISODCL (791, 806)]; /* ? */ 171 char modification_date [ISODCL (807, 822)]; /* ? */ 172 char expiration_date [ISODCL (823, 838)]; /* ? */ 173 char effective_date [ISODCL (839, 854)]; /* ? */ 174 char file_structure_version [ISODCL (855, 855)]; /* 711 */ 175 char unused4 [ISODCL (856, 2048)]; 176 }; 177 178 struct iso_directory_record { 179 char length [ISODCL (1, 1)]; /* 711 */ 180 char ext_attr_length [ISODCL (2, 2)]; /* 711 */ 181 u_char extent [ISODCL (3, 10)]; /* 733 */ 182 u_char size [ISODCL (11, 18)]; /* 733 */ 183 char date [ISODCL (19, 25)]; /* 7 by 711 */ 184 char flags [ISODCL (26, 26)]; 185 char file_unit_size [ISODCL (27, 27)]; /* 711 */ 186 char interleave [ISODCL (28, 28)]; /* 711 */ 187 char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ 188 char name_len [ISODCL (33, 33)]; /* 711 */ 189 char name [1]; /* XXX */ 190 }; 191 /* can't take sizeof(iso_directory_record), because of possible alignment 192 of the last entry (34 instead of 33) */ 193 #define ISO_DIRECTORY_RECORD_SIZE 33 194 195 struct iso_extended_attributes { 196 u_char owner [ISODCL (1, 4)]; /* 723 */ 197 u_char group [ISODCL (5, 8)]; /* 723 */ 198 u_char perm [ISODCL (9, 10)]; /* 9.5.3 */ 199 char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */ 200 char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */ 201 char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */ 202 char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */ 203 char recfmt [ISODCL (79, 79)]; /* 711 */ 204 char recattr [ISODCL (80, 80)]; /* 711 */ 205 u_char reclen [ISODCL (81, 84)]; /* 723 */ 206 char system_id [ISODCL (85, 116)]; /* achars */ 207 char system_use [ISODCL (117, 180)]; 208 char version [ISODCL (181, 181)]; /* 711 */ 209 char len_esc [ISODCL (182, 182)]; /* 711 */ 210 char reserved [ISODCL (183, 246)]; 211 u_char len_au [ISODCL (247, 250)]; /* 723 */ 212 }; 213 214 #ifdef _KERNEL 215 216 /* CD-ROM Format type */ 217 enum ISO_FTYPE { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, 218 ISO_FTYPE_JOLIET, ISO_FTYPE_ECMA, ISO_FTYPE_HIGH_SIERRA }; 219 220 #ifndef ISOFSMNT_ROOT 221 #define ISOFSMNT_ROOT 0 222 #endif 223 224 /* 225 * When ino_t becomes 64-bit, we can remove this definition in favor of ino_t. 226 */ 227 typedef __uint64_t cd_ino_t; 228 229 struct iso_mnt { 230 uint64_t im_flags; 231 232 struct mount *im_mountp; 233 struct cdev *im_dev; 234 struct vnode *im_devvp; 235 236 struct g_consumer *im_cp; 237 struct bufobj *im_bo; 238 239 int logical_block_size; 240 int im_bshift; 241 int im_bmask; 242 243 int volume_space_size; 244 245 char root[ISODCL (157, 190)]; 246 int root_extent; 247 int root_size; 248 enum ISO_FTYPE iso_ftype; 249 250 int rr_skip; 251 int rr_skip0; 252 253 int joliet_level; 254 255 void *im_d2l; 256 void *im_l2d; 257 }; 258 259 struct ifid { 260 u_short ifid_len; 261 u_short ifid_pad; 262 cd_ino_t ifid_ino; 263 long ifid_start; 264 }; 265 266 #define VFSTOISOFS(mp) ((struct iso_mnt *)((mp)->mnt_data)) 267 268 #define blkoff(imp, loc) ((loc) & (imp)->im_bmask) 269 #define lblktosize(imp, blk) ((blk) << (imp)->im_bshift) 270 #define lblkno(imp, loc) ((loc) >> (imp)->im_bshift) 271 #define blksize(imp, ip, lbn) ((imp)->logical_block_size) 272 273 int cd9660_vget_internal(struct mount *, cd_ino_t, int, struct vnode **, int, 274 struct iso_directory_record *); 275 #define cd9660_sysctl ((int (*)(int *, u_int, void *, size_t *, void *, \ 276 size_t, struct proc *))eopnotsupp) 277 278 extern struct vop_vector cd9660_vnodeops; 279 extern struct vop_vector cd9660_fifoops; 280 281 int isochar(u_char *, u_char *, int, u_short *, int *, int, void *); 282 int isofncmp(u_char *, int, u_char *, int, int, int, void *, void *); 283 void isofntrans(u_char *, int, u_char *, u_short *, int, int, int, int, void *); 284 cd_ino_t isodirino(struct iso_directory_record *, struct iso_mnt *); 285 u_short sgetrune(const char *, size_t, char const **, int, void *); 286 287 #endif /* _KERNEL */ 288 289 /* 290 * The isonum_xxx functions are inlined anyway, and could come handy even 291 * outside the kernel. Thus we don't hide them here. 292 */ 293 294 /* 295 * 7xy 296 * x -> 1 = 8 bits, 2 = 16 bits, 3 = 32 bits 297 * y -> 1 = little-endian, 2 = big-endian, 3 = both (le then be) 298 */ 299 300 static __inline uint8_t 301 isonum_711(const unsigned char *p) 302 { 303 304 return (p[0]); 305 } 306 307 static __inline int8_t 308 isonum_712(const unsigned char *p) 309 { 310 311 return ((signed char)p[0]); 312 } 313 314 static __inline uint8_t 315 isonum_713(const unsigned char *p) 316 { 317 318 return (p[0]); 319 } 320 321 static __inline uint16_t 322 isonum_721(const unsigned char *p) 323 { 324 325 return (p[0] | p[1] << 8); 326 } 327 328 static __inline uint16_t 329 isonum_722(const unsigned char *p) 330 { 331 332 return (p[1] | p[0] << 8); 333 } 334 335 static __inline uint16_t 336 isonum_723(const unsigned char *p) 337 { 338 339 return (p[0] | p[1] << 8); 340 } 341 342 static __inline uint32_t 343 isonum_731(const unsigned char *p) 344 { 345 346 return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24); 347 } 348 349 static __inline uint32_t 350 isonum_732(const unsigned char *p) 351 { 352 353 return (p[3] | p[2] << 8 | p[1] << 16 | p[0] << 24); 354 } 355 356 static __inline uint32_t 357 isonum_733(const unsigned char *p) 358 { 359 360 return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24); 361 } 362 363 /* 364 * Associated files have a leading '='. 365 */ 366 #define ASSOCCHAR '=' 367