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Annotation of qemu/roms/openbios/fs/hfs_mdb.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  *   Creation Date: <2000/09/03 23:04:27 samuel>
                      3:  *   Time-stamp: <2000/09/04 01:23:55 samuel>
                      4:  *
                      5:  *     <hfs_mdb.h>
                      6:  *
                      7:  *     HFS Master Directory Block (MDB)
                      8:  *
                      9:  *   This program is free software; you can redistribute it and/or
                     10:  *   modify it under the terms of the GNU General Public License
                     11:  *   as published by the Free Software Foundation
                     12:  *
                     13:  */
                     14: 
                     15: #ifndef _H_HFS_MDB
                     16: #define _H_HFS_MDB
                     17: 
                     18: #include "libc/byteorder.h"
                     19: 
                     20: typedef unsigned char hfs_char_t;
                     21: typedef unsigned char hfs_ushort_t[2];
                     22: typedef unsigned char hfs_uint_t[4];
                     23: 
                     24: static inline unsigned short hfs_get_ushort(hfs_ushort_t addr)
                     25: {
                     26:        return __be16_to_cpu(*((unsigned short *)(addr)));
                     27: }
                     28: 
                     29: static inline unsigned int hfs_get_uint(hfs_uint_t addr)
                     30: {
                     31:        return __be32_to_cpu(*((unsigned int *)(addr)));
                     32: }
                     33: 
                     34: /*
                     35:  * The HFS Master Directory Block (MDB).
                     36:  *
                     37:  * Also known as the Volume Information Block (VIB), this structure is
                     38:  * the HFS equivalent of a superblock.
                     39:  *
                     40:  * Reference: _Inside Macintosh: Files_ pages 2-59 through 2-62
                     41:  *
                     42:  * modified for HFS Extended
                     43:  */
                     44: 
                     45: typedef struct hfs_mdb {
                     46:        hfs_ushort_t    drSigWord;      /* Signature word indicating fs type */
                     47:        hfs_uint_t      drCrDate;       /* fs creation date/time */
                     48:        hfs_uint_t      drLsMod;        /* fs modification date/time */
                     49:        hfs_ushort_t    drAtrb;         /* fs attributes */
                     50:        hfs_ushort_t    drNmFls;        /* number of files in root directory */
                     51:        hfs_ushort_t    drVBMSt;        /* location (in 512-byte blocks)
                     52:                                           of the volume bitmap */
                     53:        hfs_ushort_t    drAllocPtr;     /* location (in allocation blocks)
                     54:                                           to begin next allocation search */
                     55:        hfs_ushort_t    drNmAlBlks;     /* number of allocation blocks */
                     56:        hfs_uint_t      drAlBlkSiz;     /* bytes in an allocation block */
                     57:        hfs_uint_t      drClpSiz;       /* clumpsize, the number of bytes to
                     58:                                           allocate when extending a file */
                     59:        hfs_ushort_t    drAlBlSt;       /* location (in 512-byte blocks)
                     60:                                           of the first allocation block */
                     61:        hfs_uint_t      drNxtCNID;      /* CNID to assign to the next
                     62:                                           file or directory created */
                     63:        hfs_ushort_t    drFreeBks;      /* number of free allocation blocks */
                     64:        hfs_char_t      drVN[28];       /* the volume label */
                     65:        hfs_uint_t      drVolBkUp;      /* fs backup date/time */
                     66:        hfs_ushort_t    drVSeqNum;      /* backup sequence number */
                     67:        hfs_uint_t      drWrCnt;        /* fs write count */
                     68:        hfs_uint_t      drXTClpSiz;     /* clumpsize for the extents B-tree */
                     69:        hfs_uint_t      drCTClpSiz;     /* clumpsize for the catalog B-tree */
                     70:        hfs_ushort_t    drNmRtDirs;     /* number of directories in
                     71:                                           the root directory */
                     72:        hfs_uint_t      drFilCnt;       /* number of files in the fs */
                     73:        hfs_uint_t      drDirCnt;       /* number of directories in the fs */
                     74:        hfs_char_t      drFndrInfo[32]; /* data used by the Finder */
                     75:        hfs_ushort_t    drEmbedSigWord; /* embedded volume signature */
                     76:        hfs_uint_t      drEmbedExtent;  /* starting block number (xdrStABN)
                     77:                                           and number of allocation blocks
                     78:                                           (xdrNumABlks) occupied by embedded
                     79:                                           volume */
                     80:        hfs_uint_t      drXTFlSize;     /* bytes in the extents B-tree */
                     81:        hfs_char_t      drXTExtRec[12]; /* extents B-tree's first 3 extents */
                     82:        hfs_uint_t      drCTFlSize;     /* bytes in the catalog B-tree */
                     83:        hfs_char_t      drCTExtRec[12]; /* catalog B-tree's first 3 extents */
                     84: } hfs_mdb_t;
                     85: 
                     86: #define HFS_PLUS_SIGNATURE     0x482b          /* 'H+' */
                     87: #define HFS_SIGNATURE          0x4244          /* HFS / embedded HFS+ */
                     88: 
                     89: 
                     90: typedef struct hfs_plus_mdb
                     91: {
                     92:        unsigned short  signature;
                     93:        unsigned short  version;
                     94:        unsigned int    attributes;
                     95:        unsigned int    lastMountedVersion;
                     96:        unsigned int    reserved;
                     97: 
                     98:        unsigned int    createDate;
                     99:        unsigned int    modifyDate;
                    100:        unsigned int    backupDate;
                    101:        unsigned int    checkedDate;
                    102: 
                    103:        unsigned int    fileCount;
                    104:        unsigned int    folderCount;
                    105: 
                    106:        unsigned int    blockSize;
                    107:        unsigned int    totalBlocks;
                    108:        unsigned int    freeBlocks;
                    109: 
                    110:        unsigned int    nextAllocation;
                    111:        unsigned int    rsrcClumpSize;
                    112:        unsigned int    dataClumpSize;
                    113: 
                    114:        /* ... there are more fields here ... */
                    115: } hfs_plus_mdb_t;
                    116: 
                    117: 
                    118: #endif   /* _H_HFS_MDB */

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