bsd/isofs/cd9660/iso.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*      $NetBSD: iso.h,v 1.9 1995/01/18 09:23:19 mycroft Exp $  */
  23
  24 /*-
  25  * Copyright (c) 1994
  26  *      The Regents of the University of California.  All rights reserved.
  27  *
  28  * This code is derived from software contributed to Berkeley
  29  * by Pace Willisson (pace@blitz.com).  The Rock Ridge Extension
  30  * Support code is derived from software contributed to Berkeley
  31  * by Atsushi Murai (amurai@spec.co.jp).
  32  *
  33  * Redistribution and use in source and binary forms, with or without
  34  * modification, are permitted provided that the following conditions
  35  * are met:
  36  * 1. Redistributions of source code must retain the above copyright
  37  *    notice, this list of conditions and the following disclaimer.
  38  * 2. Redistributions in binary form must reproduce the above copyright
  39  *    notice, this list of conditions and the following disclaimer in the
  40  *    documentation and/or other materials provided with the distribution.
  41  * 3. All advertising materials mentioning features or use of this software
  42  *    must display the following acknowledgement:
  43  *      This product includes software developed by the University of
  44  *      California, Berkeley and its contributors.
  45  * 4. Neither the name of the University nor the names of its contributors
  46  *    may be used to endorse or promote products derived from this software
  47  *    without specific prior written permission.
  48  *
  49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  59  * SUCH DAMAGE.
  60  *
  61  *      @(#)iso.h       8.4 (Berkeley) 12/5/94
  62  */
  63 #ifndef _ISO_H_
  64 #define _ISO_H_
  65
  66 #define ISODCL(from, to) (to - from + 1)
  67
  68 struct iso_volume_descriptor {
  69         char type            [ISODCL(1,1)]; /* 711 */
  70         char volume_desc_id  [ISODCL(2,6)];
  71         char version         [ISODCL(7,7)];
  72         char data            [ISODCL(8,2048)];
  73 };
  74
  75 /* volume descriptor types */
  76 #define ISO_VD_BOOT            0
  77 #define ISO_VD_PRIMARY         1
  78 #define ISO_VD_SUPPLEMENTARY   2
  79 #define ISO_VD_PARTITION       3
  80 #define ISO_VD_END           255
  81
  82 #define ISO_STANDARD_ID "CD001"
  83 #define ISO_ECMA_ID     "CDW01"
  84 #define ISO_XA_ID               "CD-XA001"      /* XA style disk signature */
  85 #define ISO9660SIGNATURE 0x4147         /* for getattrlist ATTR_VOL_SIGNATURE */
  86
  87 /* Universal Character Set implementation levels (for Joliet) */
  88 #define ISO_UCS2_Level_1        "%/@"   /* No combining chars */
  89 #define ISO_UCS2_Level_2        "%/C"   /* Combining chars allowed with restrictions */
  90 #define ISO_UCS2_Level_3        "%/E"   /* Combining chars allowed, no restrictions */
  91
  92 #define UCS_SEPARATOR1  0x002e
  93 #define UCS_SEPARATOR2  0x003b
  94
  95 #define ISO_DFLT_VOLUME_ID "ISO_9660_CD"
  96
  97 /* pathconf filename lengths */
  98 #define ISO_NAMEMAX             (31+1)
  99 #define ISO_JOLIET_NAMEMAX      (64*3)
 100 #define ISO_RRIP_NAMEMAX        255
 101
 102 /* Finder flags, from Technical Note 40 */
 103 #define         fLockedBit              0x8000
 104 #define         fInvisibleBit   0x4000
 105 #define         fHasBundleBit   0x2000
 106 #define         fSystemBit              0x1000
 107 #define         fNoCopyBit              0x0800
 108 #define         fBusyBit                0x0400
 109 #define         fChangedBit             0x0200
 110 #define         fInitedBit              0x0100
 111 #define         fCachedBit              0x0080
 112 #define         fSharedBit              0x0040
 113 #define         fAlwaysBit              0x0020          /* always switch-launch */
 114 #define         fNeverBit               0x0010          /* never switch-launch */
 115 #define         fOwnApplBit             0x0002
 116 #define         fOnDesktopBit   0x0001
 117
 118 #define         EXTFNDRINFOSIZE         16
 119
 120 struct finder_info {
 121         unsigned long           fdType;
 122         unsigned long           fdCreator;
 123         unsigned short          fdFlags;
 124         struct {
 125             short       v;              /* file's location */
 126             short       h;
 127         } fdLocation;
 128         unsigned short          fdReserved;
 129 };
 130
 131 struct iso_primary_descriptor {
 132         char type                       [ISODCL (  1,   1)]; /* 711 */
 133         char volume_desc_id             [ISODCL (  2,   6)];
 134         char version                    [ISODCL (  7,   7)]; /* 711 */
 135         char flags                      [ISODCL (  8,   8)]; /* SVD only */
 136         char system_id                  [ISODCL (  9,  40)]; /* achars */
 137         char volume_id                  [ISODCL ( 41,  72)]; /* dchars */
 138         char unused2                    [ISODCL ( 73,  80)];
 139         char volume_space_size          [ISODCL ( 81,  88)]; /* 733 */
 140         char escape_seq                 [ISODCL ( 89, 120)]; /* SVD only */
 141         char volume_set_size            [ISODCL (121, 124)]; /* 723 */
 142         char volume_sequence_number     [ISODCL (125, 128)]; /* 723 */
 143         char logical_block_size         [ISODCL (129, 132)]; /* 723 */
 144         char path_table_size            [ISODCL (133, 140)]; /* 733 */
 145         char type_l_path_table          [ISODCL (141, 144)]; /* 731 */
 146         char opt_type_l_path_table      [ISODCL (145, 148)]; /* 731 */
 147         char type_m_path_table          [ISODCL (149, 152)]; /* 732 */
 148         char opt_type_m_path_table      [ISODCL (153, 156)]; /* 732 */
 149         char root_directory_record      [ISODCL (157, 190)]; /* 9.1 */
 150         char volume_set_id              [ISODCL (191, 318)]; /* dchars */
 151         char publisher_id               [ISODCL (319, 446)]; /* achars */
 152         char preparer_id                [ISODCL (447, 574)]; /* achars */
 153         char application_id             [ISODCL (575, 702)]; /* achars */
 154         char copyright_file_id          [ISODCL (703, 739)]; /* 7.5 dchars */
 155         char abstract_file_id           [ISODCL (740, 776)]; /* 7.5 dchars */
 156         char bibliographic_file_id      [ISODCL (777, 813)]; /* 7.5 dchars */
 157         char creation_date              [ISODCL (814, 830)]; /* 8.4.26.1 */
 158         char modification_date          [ISODCL (831, 847)]; /* 8.4.26.1 */
 159         char expiration_date            [ISODCL (848, 864)]; /* 8.4.26.1 */
 160         char effective_date             [ISODCL (865, 881)]; /* 8.4.26.1 */
 161         char file_structure_version     [ISODCL (882, 882)]; /* 711 */
 162         char unused4                    [ISODCL (883, 883)];
 163         char application_data1          [ISODCL (884, 1024)];
 164         char CDXASignature                      [ISODCL (1025, 1032)];
 165         char CDXAResv                           [ISODCL (1033, 1050)];
 166         char application_data2          [ISODCL (1051, 1395)];
 167 };
 168 #define ISO_DEFAULT_BLOCK_SIZE          2048
 169
 170 /* from HighSierra.h in MacOS land */
 171 typedef struct
 172 {
 173         char    signature               [ISODCL (1, 2)];        /* x42 x41 - 'BA' signature */
 174         u_char  systemUseID             [ISODCL (3, 3)];        /* 02 = no icon, 03 = icon, 04 = icon + bundle */
 175         u_char  fileType                [ISODCL (4, 7)];        /* such as 'TEXT' or 'STAK' */
 176         u_char  fileCreator             [ISODCL (8, 11)];       /* such as 'hscd' or 'WILD' */
 177         u_char  finderFlags             [ISODCL (12, 13)];      /* optional for type 06 */
 178 } AppleExtension;
 179
 180 typedef struct
 181 {
 182         char    signature               [ISODCL (1, 2)];        /* x41 x41 - 'AA' signature */
 183         u_char  OSULength               [ISODCL (3, 3)];        /* optional SystemUse length (size of this struct) */
 184         u_char  systemUseID             [ISODCL (4, 4)];        /* 1 = ProDOS 2 = HFS */
 185         u_char  fileType                [ISODCL (5, 8)];        /* such as 'TEXT' or 'STAK' */
 186         u_char  fileCreator             [ISODCL (9, 12)];       /* such as 'hscd' or 'WILD' */
 187         u_char  finderFlags             [ISODCL (13, 14)];      /* only certain bits of this are used */
 188 } NewAppleExtension;
 189
 190 struct iso_directory_record {
 191         char length                     [ISODCL (1, 1)]; /* 711 */
 192         char ext_attr_length            [ISODCL (2, 2)]; /* 711 */
 193         u_char extent                   [ISODCL (3, 10)]; /* 733 */
 194         u_char size                     [ISODCL (11, 18)]; /* 733 */
 195         char date                       [ISODCL (19, 25)]; /* 7 by 711 */
 196         char flags                      [ISODCL (26, 26)];
 197         char file_unit_size             [ISODCL (27, 27)]; /* 711 */
 198         char interleave                 [ISODCL (28, 28)]; /* 711 */
 199         char volume_sequence_number     [ISODCL (29, 32)]; /* 723 */
 200         char name_len                   [ISODCL (33, 33)]; /* 711 */
 201         char name                       [1];                    /* XXX */
 202 };
 203 /*
 204  *  cannot take sizeof(iso_directory_record), because of
 205  *      possible alignment
 206  *      of the last entry (34 instead of 33)
 207  */
 208 #define ISO_DIRECTORY_RECORD_SIZE       33
 209
 210 /*
 211  * iso_directory_record.flags for Directory Records (except CD-I discs)
 212  */
 213 #define existenceBit    0x01    /* Invisible */
 214 #define directoryBit    0x02
 215 #define associatedBit   0x04
 216 #define recordBit               0x08
 217 #define protectionBit   0x10
 218 #define multiextentBit  0x80
 219
 220 struct iso_extended_attributes {
 221         u_char owner                    [ISODCL (1, 4)]; /* 723 */
 222         u_char group                    [ISODCL (5, 8)]; /* 723 */
 223         u_char perm                     [ISODCL (9, 10)]; /* 9.5.3 */
 224         char ctime                      [ISODCL (11, 27)]; /* 8.4.26.1 */
 225         char mtime                      [ISODCL (28, 44)]; /* 8.4.26.1 */
 226         char xtime                      [ISODCL (45, 61)]; /* 8.4.26.1 */
 227         char ftime                      [ISODCL (62, 78)]; /* 8.4.26.1 */
 228         char recfmt                     [ISODCL (79, 79)]; /* 711 */
 229         char recattr                    [ISODCL (80, 80)]; /* 711 */
 230         u_char reclen                   [ISODCL (81, 84)]; /* 723 */
 231         char system_id                  [ISODCL (85, 116)]; /* achars */
 232         char system_use                 [ISODCL (117, 180)];
 233         char version                    [ISODCL (181, 181)]; /* 711 */
 234         char len_esc                    [ISODCL (182, 182)]; /* 711 */
 235         char reserved                   [ISODCL (183, 246)];
 236         u_char len_au                   [ISODCL (247, 250)]; /* 723 */
 237 };
 238
 239 /* CD-ROM Format type */
 240 enum ISO_FTYPE  { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP,
 241                   ISO_FTYPE_JOLIET, ISO_FTYPE_ECMA };
 242
 243 #ifndef ISOFSMNT_ROOT
 244 #define ISOFSMNT_ROOT   0
 245 #endif
 246
 247 struct iso_mnt {
 248         int im_flags;           /* mount flags */
 249         int im_flags2;          /* misc flags */
 250
 251         struct mount *im_mountp;
 252         dev_t im_dev;
 253         struct vnode *im_devvp;
 254
 255         int logical_block_size;
 256         int im_bshift;
 257         int im_bmask;
 258
 259         int volume_space_size;
 260         struct netexport im_export;
 261
 262         char root[ISODCL (157, 190)];
 263         int root_extent;
 264         int root_size;
 265         enum ISO_FTYPE  iso_ftype;
 266
 267         int rr_skip;
 268         int rr_skip0;
 269
 270         struct timespec creation_date;                          /* needed for getattrlist */
 271         struct timespec modification_date;                      /* needed for getattrlist */
 272         u_char volume_id[32];                                           /* name of volume */
 273 };
 274
 275 /* bit settings for iso_mnt.im_flags2 */
 276
 277 /*
 278  *  CD is in XA format. Need this to find where apple extensions
 279  *      are in the iso_directory_record
 280  */
 281 #define IMF2_IS_CDXA    0x00000001
 282
 283 #define VFSTOISOFS(mp)  ((struct iso_mnt *)((mp)->mnt_data))
 284
 285 #define blkoff(imp, loc)        ((loc) & (imp)->im_bmask)
 286 #define lblktosize(imp, blk)    ((blk) << (imp)->im_bshift)
 287 #define lblkno(imp, loc)        ((loc) >> (imp)->im_bshift)
 288 #define blksize(imp, ip, lbn)   ((imp)->logical_block_size)
 289
 290 int cd9660_mount __P((struct mount *,
 291             char *, caddr_t, struct nameidata *, struct proc *));
 292 int cd9660_start __P((struct mount *, int, struct proc *));
 293 int cd9660_unmount __P((struct mount *, int, struct proc *));
 294 int cd9660_root __P((struct mount *, struct vnode **));
 295 int cd9660_quotactl __P((struct mount *, int, uid_t, caddr_t, struct proc *));
 296 int cd9660_statfs __P((struct mount *, struct statfs *, struct proc *));
 297 int cd9660_sync __P((struct mount *, int, struct ucred *, struct proc *));
 298 int cd9660_vget __P((struct mount *, void *, struct vnode **));
 299 int cd9660_fhtovp __P((struct mount *, struct fid *, struct mbuf *,
 300             struct vnode **, int *, struct ucred **));
 301 int cd9660_vptofh __P((struct vnode *, struct fid *));
 302 int cd9660_init __P(());
 303
 304 int cd9660_mountroot __P((void));
 305
 306 int cd9660_sysctl __P((int *, u_int, void *, size_t *, void *, size_t, struct proc *));
 307
 308 extern int (**cd9660_vnodeop_p)(void *);
 309 extern int (**cd9660_specop_p)(void *);
 310 #if FIFO
 311 extern int (**cd9660_fifoop_p)(void *);
 312 #endif
 313
 314 static __inline int
 315 isonum_711(p)
 316         u_char *p;
 317 {
 318         return *p;
 319 }
 320
 321 static __inline int
 322 isonum_712(p)
 323         char *p;
 324 {
 325         return *p;
 326 }
 327
 328 #ifndef UNALIGNED_ACCESS
 329
 330 static __inline int
 331 isonum_723(p)
 332         u_char *p;
 333 {
 334         return *p|(p[1] << 8);
 335 }
 336
 337 static __inline int
 338 isonum_733(p)
 339         u_char *p;
 340 {
 341         return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
 342 }
 343
 344 #else /* UNALIGNED_ACCESS */
 345
 346 #if BYTE_ORDER == LITTLE_ENDIAN
 347
 348 static __inline int
 349 isonum_723(p)
 350         u_char *p
 351 {
 352         return *(u_int16t *)p;
 353 }
 354
 355 static __inline int
 356 isonum_733(p)
 357         u_char *p;
 358 {
 359         return *(u_int32t *)p;
 360 }
 361
 362 #endif
 363
 364 #if BYTE_ORDER == BIG_ENDIAN
 365
 366 static __inline int
 367 isonum_723(p)
 368         u_char *p
 369 {
 370         return *(u_int16t *)(p + 2);
 371 }
 372
 373 static __inline int
 374 isonum_733(p)
 375         u_char *p;
 376 {
 377         return *(u_int32t *)(p + 4);
 378 }
 379
 380 #endif
 381
 382 #endif /* UNALIGNED_ACCESS */
 383
 384 int isofncmp __P((u_char *, int, u_char *, int));
 385 int ucsfncmp __P((u_int16_t *, int, u_int16_t *, int));
 386 void isofntrans __P((u_char *, int, u_char *, u_short *, int));
 387 void ucsfntrans __P((u_int16_t *, int, u_char *, u_short *, int));
 388 ino_t isodirino __P((struct iso_directory_record *, struct iso_mnt *));
 389 int attrcalcsize __P((struct attrlist *attrlist));
 390 void packattrblk __P((struct attrlist *alist, struct vnode *vp,
 391                                           void **attrbufptrptr, void **varbufptrptr));
 392
 393
 394 /*
 395  * Associated files have a leading '='.
 396  */
 397 #define ASSOCCHAR       '='
 398
 399 #endif /* ! _ISO_H_ */