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Annotation of kernel/bsd/isofs/cd9660/iso.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /*     $NetBSD: iso.h,v 1.9 1995/01/18 09:23:19 mycroft Exp $  */
        !            26: 
        !            27: /*-
        !            28:  * Copyright (c) 1994
        !            29:  *     The Regents of the University of California.  All rights reserved.
        !            30:  *
        !            31:  * This code is derived from software contributed to Berkeley
        !            32:  * by Pace Willisson ([email protected]).  The Rock Ridge Extension
        !            33:  * Support code is derived from software contributed to Berkeley
        !            34:  * by Atsushi Murai ([email protected]).
        !            35:  *
        !            36:  * Redistribution and use in source and binary forms, with or without
        !            37:  * modification, are permitted provided that the following conditions
        !            38:  * are met:
        !            39:  * 1. Redistributions of source code must retain the above copyright
        !            40:  *    notice, this list of conditions and the following disclaimer.
        !            41:  * 2. Redistributions in binary form must reproduce the above copyright
        !            42:  *    notice, this list of conditions and the following disclaimer in the
        !            43:  *    documentation and/or other materials provided with the distribution.
        !            44:  * 3. All advertising materials mentioning features or use of this software
        !            45:  *    must display the following acknowledgement:
        !            46:  *     This product includes software developed by the University of
        !            47:  *     California, Berkeley and its contributors.
        !            48:  * 4. Neither the name of the University nor the names of its contributors
        !            49:  *    may be used to endorse or promote products derived from this software
        !            50:  *    without specific prior written permission.
        !            51:  *
        !            52:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            53:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            54:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            55:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            56:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            57:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            58:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            59:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            60:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            61:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            62:  * SUCH DAMAGE.
        !            63:  *
        !            64:  *     @(#)iso.h       8.4 (Berkeley) 12/5/94
        !            65:  */
        !            66: 
        !            67: #define ISODCL(from, to) (to - from + 1)
        !            68: 
        !            69: struct iso_volume_descriptor {
        !            70:        char type[ISODCL(1,1)]; /* 711 */
        !            71:        char id[ISODCL(2,6)];
        !            72:        char version[ISODCL(7,7)];
        !            73:        char data[ISODCL(8,2048)];
        !            74: };
        !            75: 
        !            76: /* volume descriptor types */
        !            77: #define ISO_VD_PRIMARY 1
        !            78: #define ISO_VD_END 255
        !            79: 
        !            80: #define ISO_STANDARD_ID "CD001"
        !            81: #define ISO_ECMA_ID     "CDW01"
        !            82: #define ISO_XA_ID              "CD-XA001"      /* XA style disk signature */
        !            83: #define        DEFAULTTYPE             0x54455854      /* 'TEXT' */
        !            84: #define DEFAULTCREATOR 0x68736364      /* 'hscd' */
        !            85: #define ISO9660SIGNATURE 0x4147                /* for getattrlist ATTR_VOL_SIGNATURE */
        !            86: 
        !            87: /* Finder flags, from Technical Note 40 */
        !            88: #define                fLockedBit              0x8000
        !            89: #define                fInvisibleBit   0x4000
        !            90: #define                fHasBundleBit   0x2000
        !            91: #define                fSystemBit              0x1000
        !            92: #define                fNoCopyBit              0x0800
        !            93: #define                fBusyBit                0x0400
        !            94: #define                fChangedBit             0x0200
        !            95: #define                fInitedBit              0x0100
        !            96: #define                fCachedBit              0x0080
        !            97: #define                fSharedBit              0x0040
        !            98: #define                fAlwaysBit              0x0020          /* always switch-launch */
        !            99: #define                fNeverBit               0x0010          /* never switch-launch */
        !           100: #define                fOwnApplBit             0x0002
        !           101: #define                fOnDesktopBit   0x0001
        !           102: 
        !           103: #define                EXTFNDRINFOSIZE         16
        !           104: 
        !           105: struct finder_info {
        !           106:        unsigned long           fdType;
        !           107:        unsigned long           fdCreator;
        !           108:        unsigned short          fdFlags;
        !           109:        unsigned short          fdReserved[3];
        !           110: };
        !           111: 
        !           112: struct iso_primary_descriptor {
        !           113:        char type                       [ISODCL (  1,   1)]; /* 711 */
        !           114:        char id                         [ISODCL (  2,   6)];
        !           115:        char version                    [ISODCL (  7,   7)]; /* 711 */
        !           116:        char unused1                    [ISODCL (  8,   8)];
        !           117:        char system_id                  [ISODCL (  9,  40)]; /* achars */
        !           118:        char volume_id                  [ISODCL ( 41,  72)]; /* dchars */
        !           119:        char unused2                    [ISODCL ( 73,  80)];
        !           120:        char volume_space_size          [ISODCL ( 81,  88)]; /* 733 */
        !           121:        char unused3                    [ISODCL ( 89, 120)];
        !           122:        char volume_set_size            [ISODCL (121, 124)]; /* 723 */
        !           123:        char volume_sequence_number     [ISODCL (125, 128)]; /* 723 */
        !           124:        char logical_block_size         [ISODCL (129, 132)]; /* 723 */
        !           125:        char path_table_size            [ISODCL (133, 140)]; /* 733 */
        !           126:        char type_l_path_table          [ISODCL (141, 144)]; /* 731 */
        !           127:        char opt_type_l_path_table      [ISODCL (145, 148)]; /* 731 */
        !           128:        char type_m_path_table          [ISODCL (149, 152)]; /* 732 */
        !           129:        char opt_type_m_path_table      [ISODCL (153, 156)]; /* 732 */
        !           130:        char root_directory_record      [ISODCL (157, 190)]; /* 9.1 */
        !           131:        char volume_set_id              [ISODCL (191, 318)]; /* dchars */
        !           132:        char publisher_id               [ISODCL (319, 446)]; /* achars */
        !           133:        char preparer_id                [ISODCL (447, 574)]; /* achars */
        !           134:        char application_id             [ISODCL (575, 702)]; /* achars */
        !           135:        char copyright_file_id          [ISODCL (703, 739)]; /* 7.5 dchars */
        !           136:        char abstract_file_id           [ISODCL (740, 776)]; /* 7.5 dchars */
        !           137:        char bibliographic_file_id      [ISODCL (777, 813)]; /* 7.5 dchars */
        !           138:        char creation_date              [ISODCL (814, 830)]; /* 8.4.26.1 */
        !           139:        char modification_date          [ISODCL (831, 847)]; /* 8.4.26.1 */
        !           140:        char expiration_date            [ISODCL (848, 864)]; /* 8.4.26.1 */
        !           141:        char effective_date             [ISODCL (865, 881)]; /* 8.4.26.1 */
        !           142:        char file_structure_version     [ISODCL (882, 882)]; /* 711 */
        !           143:        char unused4                    [ISODCL (883, 883)];
        !           144:        char application_data1          [ISODCL (884, 1024)];
        !           145:        char CDXASignature                      [ISODCL (1025, 1032)];
        !           146:        char CDXAResv                           [ISODCL (1033, 1050)];
        !           147:        char application_data2          [ISODCL (1051, 1395)];
        !           148: };
        !           149: #define ISO_DEFAULT_BLOCK_SIZE         2048
        !           150: 
        !           151: #if 1
        !           152: /* from HighSierra.h in MacOS land */
        !           153: typedef struct 
        !           154: {
        !           155:        char    signature               [ISODCL (1, 2)];        /* x42 x41 - 'BA' signature */
        !           156:        u_char  systemUseID             [ISODCL (3, 3)];        /* 02 = no icon, 03 = icon, 04 = icon + bundle */
        !           157:        u_char  fileType                [ISODCL (4, 7)];        /* such as 'TEXT' or 'STAK' */
        !           158:        u_char  fileCreator             [ISODCL (8, 11)];       /* such as 'hscd' or 'WILD' */
        !           159:        u_char  finderFlags             [ISODCL (12, 13)];      /* optional for type 06 */
        !           160: } AppleExtension;
        !           161: 
        !           162: typedef struct 
        !           163: {
        !           164:        char    signature               [ISODCL (1, 2)];        /* x41 x41 - 'AA' signature */
        !           165:        u_char  OSULength               [ISODCL (3, 3)];        /* optional SystemUse length (size of this struct) */
        !           166:        u_char  systemUseID             [ISODCL (4, 4)];        /* 1 = ProDOS 2 = HFS */
        !           167:        u_char  fileType                [ISODCL (5, 8)];        /* such as 'TEXT' or 'STAK' */
        !           168:        u_char  fileCreator             [ISODCL (9, 12)];       /* such as 'hscd' or 'WILD' */
        !           169:        u_char  finderFlags             [ISODCL (13, 14)];      /* only certain bits of this are used */
        !           170: } NewAppleExtension;
        !           171: #endif
        !           172: 
        !           173: struct iso_directory_record {
        !           174:        char length                     [ISODCL (1, 1)]; /* 711 */
        !           175:        char ext_attr_length            [ISODCL (2, 2)]; /* 711 */
        !           176:        u_char extent                   [ISODCL (3, 10)]; /* 733 */
        !           177:        u_char size                     [ISODCL (11, 18)]; /* 733 */
        !           178:        char date                       [ISODCL (19, 25)]; /* 7 by 711 */
        !           179:        char flags                      [ISODCL (26, 26)];
        !           180:        char file_unit_size             [ISODCL (27, 27)]; /* 711 */
        !           181:        char interleave                 [ISODCL (28, 28)]; /* 711 */
        !           182:        char volume_sequence_number     [ISODCL (29, 32)]; /* 723 */
        !           183:        char name_len                   [ISODCL (33, 33)]; /* 711 */
        !           184:        char name                       [1];                    /* XXX */
        !           185: };
        !           186: /* can't take sizeof(iso_directory_record), because of possible alignment
        !           187:    of the last entry (34 instead of 33) */
        !           188: #define ISO_DIRECTORY_RECORD_SIZE      33
        !           189: 
        !           190: /* iso_directory_record.flags for Directory Records (except CD-I discs) */
        !           191: #define existenceBit   0x01    /* Invisible */
        !           192: #define directoryBit   0x02
        !           193: #define associatedBit  0x04
        !           194: #define recordBit              0x08
        !           195: #define protectionBit  0x10
        !           196: #define multiextentBit 0x80
        !           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: /* CD-ROM Format type */
        !           218: enum ISO_FTYPE  { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, ISO_FTYPE_ECMA };
        !           219: 
        !           220: #ifndef        ISOFSMNT_ROOT
        !           221: #define        ISOFSMNT_ROOT   0
        !           222: #endif
        !           223: 
        !           224: struct iso_mnt {
        !           225:        int im_flags;   /* mount flags */
        !           226:        int im_flags2;  /* misc flags */
        !           227: 
        !           228:        struct mount *im_mountp;
        !           229:        dev_t im_dev;
        !           230:        struct vnode *im_devvp;
        !           231: 
        !           232:        int logical_block_size;
        !           233:        int im_bshift;
        !           234:        int im_bmask;
        !           235:        
        !           236:        int volume_space_size;
        !           237:        struct netexport im_export;
        !           238:        
        !           239:        char root[ISODCL (157, 190)];
        !           240:        int root_extent;
        !           241:        int root_size;
        !           242:        enum ISO_FTYPE  iso_ftype;
        !           243:        
        !           244:        int rr_skip;
        !           245:        int rr_skip0;
        !           246: 
        !           247:        struct timespec creation_date;          /* needed for getattrlist */
        !           248:        struct timespec modification_date;      /* needed for getattrlist */
        !           249:        u_char volume_id[32];                           /* name of volume */
        !           250: };
        !           251: 
        !           252: /* bit settings for iso_mnt.im_flags2 */
        !           253: /*
        !           254:  * CD is in XA format. Need this to find where apple extensions are
        !           255:  * in the iso_directory_record
        !           256:  */
        !           257: #define        IMF2_IS_CDXA    0x00000001
        !           258: 
        !           259: #define VFSTOISOFS(mp) ((struct iso_mnt *)((mp)->mnt_data))
        !           260: 
        !           261: #define blkoff(imp, loc)       ((loc) & (imp)->im_bmask)
        !           262: #define lblktosize(imp, blk)   ((blk) << (imp)->im_bshift)
        !           263: #define lblkno(imp, loc)       ((loc) >> (imp)->im_bshift)
        !           264: #define blksize(imp, ip, lbn)  ((imp)->logical_block_size)
        !           265: 
        !           266: int cd9660_mount __P((struct mount *,
        !           267:            char *, caddr_t, struct nameidata *, struct proc *));
        !           268: int cd9660_start __P((struct mount *, int, struct proc *));
        !           269: int cd9660_unmount __P((struct mount *, int, struct proc *));
        !           270: int cd9660_root __P((struct mount *, struct vnode **));
        !           271: int cd9660_quotactl __P((struct mount *, int, uid_t, caddr_t, struct proc *));
        !           272: int cd9660_statfs __P((struct mount *, struct statfs *, struct proc *));
        !           273: int cd9660_sync __P((struct mount *, int, struct ucred *, struct proc *));
        !           274: int cd9660_vget __P((struct mount *, void *, struct vnode **));
        !           275: int cd9660_fhtovp __P((struct mount *, struct fid *, struct mbuf *,
        !           276:            struct vnode **, int *, struct ucred **));
        !           277: int cd9660_vptofh __P((struct vnode *, struct fid *));
        !           278: int cd9660_init __P(());
        !           279: 
        !           280: int cd9660_mountroot __P((void)); 
        !           281: 
        !           282: int cd9660_sysctl __P((int *, u_int, void *, size_t *, void *, size_t, struct proc *));
        !           283: 
        !           284: extern int (**cd9660_vnodeop_p)();
        !           285: extern int (**cd9660_specop_p)();
        !           286: #ifdef FIFO
        !           287: extern int (**cd9660_fifoop_p)();
        !           288: #endif
        !           289: 
        !           290: static __inline int
        !           291: isonum_711(p)
        !           292:        u_char *p;
        !           293: {
        !           294:        return *p;
        !           295: }
        !           296: 
        !           297: static __inline int
        !           298: isonum_712(p)
        !           299:        char *p;
        !           300: {
        !           301:        return *p;
        !           302: }
        !           303: 
        !           304: #ifndef UNALIGNED_ACCESS
        !           305: 
        !           306: static __inline int
        !           307: isonum_723(p)
        !           308:        u_char *p;
        !           309: {
        !           310:        return *p|(p[1] << 8);
        !           311: }
        !           312: 
        !           313: static __inline int
        !           314: isonum_733(p)
        !           315:        u_char *p;
        !           316: {
        !           317:        return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
        !           318: }
        !           319: 
        !           320: #else /* UNALIGNED_ACCESS */
        !           321: 
        !           322: #if BYTE_ORDER == LITTLE_ENDIAN
        !           323: 
        !           324: static __inline int
        !           325: isonum_723(p)
        !           326:        u_char *p
        !           327: {
        !           328:        return *(u_int16t *)p;
        !           329: }
        !           330: 
        !           331: static __inline int
        !           332: isonum_733(p)
        !           333:        u_char *p;
        !           334: {
        !           335:        return *(u_int32t *)p;
        !           336: }
        !           337: 
        !           338: #endif
        !           339: 
        !           340: #if BYTE_ORDER == BIG_ENDIAN
        !           341: 
        !           342: static __inline int
        !           343: isonum_723(p)
        !           344:        u_char *p
        !           345: {
        !           346:        return *(u_int16t *)(p + 2);
        !           347: }
        !           348: 
        !           349: static __inline int
        !           350: isonum_733(p)
        !           351:        u_char *p;
        !           352: {
        !           353:        return *(u_int32t *)(p + 4);
        !           354: }
        !           355: 
        !           356: #endif
        !           357: 
        !           358: #endif /* UNALIGNED_ACCESS */
        !           359: 
        !           360: int isofncmp __P((u_char *, int, u_char *, int));
        !           361: void isofntrans __P((u_char *, int, u_char *, u_short *, int, int));
        !           362: ino_t isodirino __P((struct iso_directory_record *, struct iso_mnt *));
        !           363: int attrcalcsize __P((struct attrlist *attrlist));
        !           364: void packattrblk __P((struct attrlist *alist, struct vnode *vp,
        !           365:                                          void **attrbufptrptr, void **varbufptrptr));
        !           366: 
        !           367: 
        !           368: /*
        !           369:  * Associated files have a leading '='.
        !           370:  */
        !           371: #define        ASSOCCHAR       '='

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