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