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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)iso.h 8.6 (Berkeley) 5/10/95 35 * $FreeBSD: src/sys/isofs/cd9660/iso.h,v 1.19.2.1 2000/07/08 14:35:56 bp Exp $ 36 * $DragonFly: src/sys/vfs/isofs/cd9660/iso.h,v 1.8 2006/09/10 01:26:41 dillon Exp $ 37 */ 38 39 #define ISODCL(from, to) (to - from + 1) 40 41 struct iso_volume_descriptor { 42 char type[ISODCL(1,1)]; /* 711 */ 43 char id[ISODCL(2,6)]; 44 char version[ISODCL(7,7)]; 45 char unused[ISODCL(8,8)]; 46 char type_sierra[ISODCL(9,9)]; /* 711 */ 47 char id_sierra[ISODCL(10,14)]; 48 char version_sierra[ISODCL(15,15)]; 49 char data[ISODCL(16,2048)]; 50 }; 51 52 /* volume descriptor types */ 53 #define ISO_VD_PRIMARY 1 54 #define ISO_VD_SUPPLEMENTARY 2 55 #define ISO_VD_END 255 56 57 #define ISO_STANDARD_ID "CD001" 58 #define ISO_ECMA_ID "CDW01" 59 60 #define ISO_SIERRA_ID "CDROM" 61 62 struct iso_primary_descriptor { 63 char type [ISODCL ( 1, 1)]; /* 711 */ 64 char id [ISODCL ( 2, 6)]; 65 char version [ISODCL ( 7, 7)]; /* 711 */ 66 char unused1 [ISODCL ( 8, 8)]; 67 char system_id [ISODCL ( 9, 40)]; /* achars */ 68 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 69 char unused2 [ISODCL ( 73, 80)]; 70 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 71 char unused3 [ISODCL ( 89, 120)]; 72 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 73 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 74 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 75 char path_table_size [ISODCL (133, 140)]; /* 733 */ 76 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 77 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 78 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 79 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 80 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 81 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 82 char publisher_id [ISODCL (319, 446)]; /* achars */ 83 char preparer_id [ISODCL (447, 574)]; /* achars */ 84 char application_id [ISODCL (575, 702)]; /* achars */ 85 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 86 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 87 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 88 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 89 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 90 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 91 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 92 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 93 char unused4 [ISODCL (883, 883)]; 94 char application_data [ISODCL (884, 1395)]; 95 char unused5 [ISODCL (1396, 2048)]; 96 }; 97 #define ISO_DEFAULT_BLOCK_SIZE 2048 98 99 /* 100 * Used by Microsoft Joliet extension to ISO9660. Almost the same 101 * as PVD, but byte position 8 is a flag, and 89-120 is for escape. 102 */ 103 104 struct iso_supplementary_descriptor { 105 char type [ISODCL ( 1, 1)]; /* 711 */ 106 char id [ISODCL ( 2, 6)]; 107 char version [ISODCL ( 7, 7)]; /* 711 */ 108 char flags [ISODCL ( 8, 8)]; /* 711? */ 109 char system_id [ISODCL ( 9, 40)]; /* achars */ 110 char volume_id [ISODCL ( 41, 72)]; /* dchars */ 111 char unused2 [ISODCL ( 73, 80)]; 112 char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 113 char escape [ISODCL ( 89, 120)]; 114 char volume_set_size [ISODCL (121, 124)]; /* 723 */ 115 char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 116 char logical_block_size [ISODCL (129, 132)]; /* 723 */ 117 char path_table_size [ISODCL (133, 140)]; /* 733 */ 118 char type_l_path_table [ISODCL (141, 144)]; /* 731 */ 119 char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 120 char type_m_path_table [ISODCL (149, 152)]; /* 732 */ 121 char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 122 char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 123 char volume_set_id [ISODCL (191, 318)]; /* dchars */ 124 char publisher_id [ISODCL (319, 446)]; /* achars */ 125 char preparer_id [ISODCL (447, 574)]; /* achars */ 126 char application_id [ISODCL (575, 702)]; /* achars */ 127 char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 128 char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 129 char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 130 char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 131 char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 132 char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 133 char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 134 char file_structure_version [ISODCL (882, 882)]; /* 711 */ 135 char unused4 [ISODCL (883, 883)]; 136 char application_data [ISODCL (884, 1395)]; 137 char unused5 [ISODCL (1396, 2048)]; 138 }; 139 140 struct iso_sierra_primary_descriptor { 141 char unknown1 [ISODCL ( 1, 8)]; /* 733 */ 142 char type [ISODCL ( 9, 9)]; /* 711 */ 143 char id [ISODCL ( 10, 14)]; 144 char version [ISODCL ( 15, 15)]; /* 711 */ 145 char unused1 [ISODCL ( 16, 16)]; 146 char system_id [ISODCL ( 17, 48)]; /* achars */ 147 char volume_id [ISODCL ( 49, 80)]; /* dchars */ 148 char unused2 [ISODCL ( 81, 88)]; 149 char volume_space_size [ISODCL ( 89, 96)]; /* 733 */ 150 char unused3 [ISODCL ( 97, 128)]; 151 char volume_set_size [ISODCL (129, 132)]; /* 723 */ 152 char volume_sequence_number [ISODCL (133, 136)]; /* 723 */ 153 char logical_block_size [ISODCL (137, 140)]; /* 723 */ 154 char path_table_size [ISODCL (141, 148)]; /* 733 */ 155 char type_l_path_table [ISODCL (149, 152)]; /* 731 */ 156 char opt_type_l_path_table [ISODCL (153, 156)]; /* 731 */ 157 char unknown2 [ISODCL (157, 160)]; /* 731 */ 158 char unknown3 [ISODCL (161, 164)]; /* 731 */ 159 char type_m_path_table [ISODCL (165, 168)]; /* 732 */ 160 char opt_type_m_path_table [ISODCL (169, 172)]; /* 732 */ 161 char unknown4 [ISODCL (173, 176)]; /* 732 */ 162 char unknown5 [ISODCL (177, 180)]; /* 732 */ 163 char root_directory_record [ISODCL (181, 214)]; /* 9.1 */ 164 char volume_set_id [ISODCL (215, 342)]; /* dchars */ 165 char publisher_id [ISODCL (343, 470)]; /* achars */ 166 char preparer_id [ISODCL (471, 598)]; /* achars */ 167 char application_id [ISODCL (599, 726)]; /* achars */ 168 char copyright_id [ISODCL (727, 790)]; /* achars */ 169 char creation_date [ISODCL (791, 806)]; /* ? */ 170 char modification_date [ISODCL (807, 822)]; /* ? */ 171 char expiration_date [ISODCL (823, 838)]; /* ? */ 172 char effective_date [ISODCL (839, 854)]; /* ? */ 173 char file_structure_version [ISODCL (855, 855)]; /* 711 */ 174 char unused4 [ISODCL (856, 2048)]; 175 }; 176 177 struct iso_directory_record { 178 char length [ISODCL (1, 1)]; /* 711 */ 179 char ext_attr_length [ISODCL (2, 2)]; /* 711 */ 180 u_char extent [ISODCL (3, 10)]; /* 733 */ 181 u_char size [ISODCL (11, 18)]; /* 733 */ 182 char date [ISODCL (19, 25)]; /* 7 by 711 */ 183 char flags [ISODCL (26, 26)]; 184 char file_unit_size [ISODCL (27, 27)]; /* 711 */ 185 char interleave [ISODCL (28, 28)]; /* 711 */ 186 char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ 187 char name_len [ISODCL (33, 33)]; /* 711 */ 188 char name [1]; /* XXX */ 189 }; 190 /* can't take sizeof(iso_directory_record), because of possible alignment 191 of the last entry (34 instead of 33) */ 192 #define ISO_DIRECTORY_RECORD_SIZE 33 193 194 struct iso_extended_attributes { 195 u_char owner [ISODCL (1, 4)]; /* 723 */ 196 u_char group [ISODCL (5, 8)]; /* 723 */ 197 u_char perm [ISODCL (9, 10)]; /* 9.5.3 */ 198 char ctime [ISODCL (11, 27)]; /* 8.4.26.1 */ 199 char mtime [ISODCL (28, 44)]; /* 8.4.26.1 */ 200 char xtime [ISODCL (45, 61)]; /* 8.4.26.1 */ 201 char ftime [ISODCL (62, 78)]; /* 8.4.26.1 */ 202 char recfmt [ISODCL (79, 79)]; /* 711 */ 203 char recattr [ISODCL (80, 80)]; /* 711 */ 204 u_char reclen [ISODCL (81, 84)]; /* 723 */ 205 char system_id [ISODCL (85, 116)]; /* achars */ 206 char system_use [ISODCL (117, 180)]; 207 char version [ISODCL (181, 181)]; /* 711 */ 208 char len_esc [ISODCL (182, 182)]; /* 711 */ 209 char reserved [ISODCL (183, 246)]; 210 u_char len_au [ISODCL (247, 250)]; /* 723 */ 211 }; 212 213 #ifdef _KERNEL 214 215 /* CD-ROM Format type */ 216 enum ISO_FTYPE { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, 217 ISO_FTYPE_JOLIET, ISO_FTYPE_ECMA, ISO_FTYPE_HIGH_SIERRA }; 218 219 #ifndef ISOFSMNT_ROOT 220 #define ISOFSMNT_ROOT 0 221 #endif 222 223 struct iso_mnt { 224 int im_flags; 225 226 struct mount *im_mountp; 227 cdev_t im_dev; 228 struct vnode *im_devvp; 229 230 int logical_block_size; 231 int im_bshift; 232 int im_bmask; 233 234 int volume_space_size; 235 struct netexport im_export; 236 237 char root[ISODCL (157, 190)]; 238 int root_extent; 239 int root_size; 240 enum ISO_FTYPE iso_ftype; 241 242 int rr_skip; 243 int rr_skip0; 244 245 int joliet_level; 246 247 void *im_d2l; 248 void *im_l2d; 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 lblktooff(imp, blk) ((off_t)(blk) << (imp)->im_bshift) 256 #define lblkno(imp, loc) ((loc) >> (imp)->im_bshift) 257 #define blksize(imp, ip, lbn) ((imp)->logical_block_size) 258 259 int cd9660_vget_internal (struct mount *, ino_t, struct vnode **, int, 260 struct iso_directory_record *); 261 int cd9660_init (struct vfsconf *); 262 int cd9660_uninit (struct vfsconf *); 263 #define cd9660_sysctl ((int (*) (int *, u_int, void *, size_t *, void *, \ 264 size_t, struct proc *))eopnotsupp) 265 266 int isochar(u_char *, u_char *, int, u_short *, int *, int, void *); 267 int isofncmp(u_char *, int, u_char *, int, int, int, void *, void *); 268 void isofntrans(u_char *, int, u_char *, u_short *, int, int, int, int, void *); 269 ino_t isodirino (struct iso_directory_record *, struct iso_mnt *); 270 u_short sgetrune(const char *, size_t, char const **, int, void *); 271 272 #endif /* _KERNEL */ 273 274 /* 275 * The isonum_xxx functions are inlined anyway, and could come handy even 276 * outside the kernel. Thus we don't hide them here. 277 */ 278 279 static __inline uint8_t 280 isonum_711(unsigned char *p) 281 { 282 return p[0]; 283 } 284 285 static __inline uint8_t 286 isonum_712(unsigned char *p) 287 { 288 return p[0]; 289 } 290 291 #ifndef UNALIGNED_ACCESS 292 293 static __inline uint16_t 294 isonum_723(unsigned char *p) 295 { 296 return (p[0] | p[1] << 8); 297 } 298 299 static __inline uint32_t 300 isonum_733(unsigned char *p) 301 { 302 return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24); 303 } 304 305 #else /* UNALIGNED_ACCESS */ 306 307 #if BYTE_ORDER == LITTLE_ENDIAN 308 309 static __inline int 310 isonum_723(u_char *p) 311 { 312 return *(u_int16t *)p; 313 } 314 315 static __inline int 316 isonum_733(u_char *p) 317 { 318 return *(u_int32t *)p; 319 } 320 321 #endif 322 323 #if BYTE_ORDER == BIG_ENDIAN 324 325 static __inline int 326 isonum_723(u_char *p) 327 { 328 return *(u_int16t *)(p + 2); 329 } 330 331 static __inline int 332 isonum_733(u_char *p) 333 { 334 return *(u_int32t *)(p + 4); 335 } 336 337 #endif 338 339 #endif /* UNALIGNED_ACCESS */ 340 341 /* 342 * Associated files have a leading '='. 343 */ 344 #define ASSOCCHAR '=' 345