diff options
Diffstat (limited to 'fs/hfs/hfs.h')
| -rw-r--r-- | fs/hfs/hfs.h | 269 |
1 files changed, 1 insertions, 268 deletions
diff --git a/fs/hfs/hfs.h b/fs/hfs/hfs.h index 6f194d0768b6..3f2293ff6fdd 100644 --- a/fs/hfs/hfs.h +++ b/fs/hfs/hfs.h @@ -9,274 +9,7 @@ #ifndef _HFS_H #define _HFS_H -/* offsets to various blocks */ -#define HFS_DD_BLK 0 /* Driver Descriptor block */ -#define HFS_PMAP_BLK 1 /* First block of partition map */ -#define HFS_MDB_BLK 2 /* Block (w/i partition) of MDB */ - -/* magic numbers for various disk blocks */ -#define HFS_DRVR_DESC_MAGIC 0x4552 /* "ER": driver descriptor map */ -#define HFS_OLD_PMAP_MAGIC 0x5453 /* "TS": old-type partition map */ -#define HFS_NEW_PMAP_MAGIC 0x504D /* "PM": new-type partition map */ -#define HFS_SUPER_MAGIC 0x4244 /* "BD": HFS MDB (super block) */ -#define HFS_MFS_SUPER_MAGIC 0xD2D7 /* MFS MDB (super block) */ - -/* various FIXED size parameters */ -#define HFS_SECTOR_SIZE 512 /* size of an HFS sector */ -#define HFS_SECTOR_SIZE_BITS 9 /* log_2(HFS_SECTOR_SIZE) */ -#define HFS_NAMELEN 31 /* maximum length of an HFS filename */ -#define HFS_MAX_NAMELEN 128 -#define HFS_MAX_VALENCE 32767U - -/* Meanings of the drAtrb field of the MDB, - * Reference: _Inside Macintosh: Files_ p. 2-61 - */ -#define HFS_SB_ATTRIB_HLOCK (1 << 7) -#define HFS_SB_ATTRIB_UNMNT (1 << 8) -#define HFS_SB_ATTRIB_SPARED (1 << 9) -#define HFS_SB_ATTRIB_INCNSTNT (1 << 11) -#define HFS_SB_ATTRIB_SLOCK (1 << 15) - -/* Some special File ID numbers */ -#define HFS_POR_CNID 1 /* Parent Of the Root */ -#define HFS_ROOT_CNID 2 /* ROOT directory */ -#define HFS_EXT_CNID 3 /* EXTents B-tree */ -#define HFS_CAT_CNID 4 /* CATalog B-tree */ -#define HFS_BAD_CNID 5 /* BAD blocks file */ -#define HFS_ALLOC_CNID 6 /* ALLOCation file (HFS+) */ -#define HFS_START_CNID 7 /* STARTup file (HFS+) */ -#define HFS_ATTR_CNID 8 /* ATTRibutes file (HFS+) */ -#define HFS_EXCH_CNID 15 /* ExchangeFiles temp id */ -#define HFS_FIRSTUSER_CNID 16 - -/* values for hfs_cat_rec.cdrType */ -#define HFS_CDR_DIR 0x01 /* folder (directory) */ -#define HFS_CDR_FIL 0x02 /* file */ -#define HFS_CDR_THD 0x03 /* folder (directory) thread */ -#define HFS_CDR_FTH 0x04 /* file thread */ - -/* legal values for hfs_ext_key.FkType and hfs_file.fork */ -#define HFS_FK_DATA 0x00 -#define HFS_FK_RSRC 0xFF - -/* bits in hfs_fil_entry.Flags */ -#define HFS_FIL_LOCK 0x01 /* locked */ -#define HFS_FIL_THD 0x02 /* file thread */ -#define HFS_FIL_DOPEN 0x04 /* data fork open */ -#define HFS_FIL_ROPEN 0x08 /* resource fork open */ -#define HFS_FIL_DIR 0x10 /* directory (always clear) */ -#define HFS_FIL_NOCOPY 0x40 /* copy-protected file */ -#define HFS_FIL_USED 0x80 /* open */ - -/* bits in hfs_dir_entry.Flags. dirflags is 16 bits. */ -#define HFS_DIR_LOCK 0x01 /* locked */ -#define HFS_DIR_THD 0x02 /* directory thread */ -#define HFS_DIR_INEXPFOLDER 0x04 /* in a shared area */ -#define HFS_DIR_MOUNTED 0x08 /* mounted */ -#define HFS_DIR_DIR 0x10 /* directory (always set) */ -#define HFS_DIR_EXPFOLDER 0x20 /* share point */ - -/* bits hfs_finfo.fdFlags */ -#define HFS_FLG_INITED 0x0100 -#define HFS_FLG_LOCKED 0x1000 -#define HFS_FLG_INVISIBLE 0x4000 - -/*======== HFS structures as they appear on the disk ========*/ - -/* Pascal-style string of up to 31 characters */ -struct hfs_name { - u8 len; - u8 name[HFS_NAMELEN]; -} __packed; - -struct hfs_point { - __be16 v; - __be16 h; -} __packed; - -struct hfs_rect { - __be16 top; - __be16 left; - __be16 bottom; - __be16 right; -} __packed; - -struct hfs_finfo { - __be32 fdType; - __be32 fdCreator; - __be16 fdFlags; - struct hfs_point fdLocation; - __be16 fdFldr; -} __packed; - -struct hfs_fxinfo { - __be16 fdIconID; - u8 fdUnused[8]; - __be16 fdComment; - __be32 fdPutAway; -} __packed; - -struct hfs_dinfo { - struct hfs_rect frRect; - __be16 frFlags; - struct hfs_point frLocation; - __be16 frView; -} __packed; - -struct hfs_dxinfo { - struct hfs_point frScroll; - __be32 frOpenChain; - __be16 frUnused; - __be16 frComment; - __be32 frPutAway; -} __packed; - -union hfs_finder_info { - struct { - struct hfs_finfo finfo; - struct hfs_fxinfo fxinfo; - } file; - struct { - struct hfs_dinfo dinfo; - struct hfs_dxinfo dxinfo; - } dir; -} __packed; - -/* Cast to a pointer to a generic bkey */ -#define HFS_BKEY(X) (((void)((X)->KeyLen)), ((struct hfs_bkey *)(X))) - -/* The key used in the catalog b-tree: */ -struct hfs_cat_key { - u8 key_len; /* number of bytes in the key */ - u8 reserved; /* padding */ - __be32 ParID; /* CNID of the parent dir */ - struct hfs_name CName; /* The filename of the entry */ -} __packed; - -/* The key used in the extents b-tree: */ -struct hfs_ext_key { - u8 key_len; /* number of bytes in the key */ - u8 FkType; /* HFS_FK_{DATA,RSRC} */ - __be32 FNum; /* The File ID of the file */ - __be16 FABN; /* allocation blocks number*/ -} __packed; - -typedef union hfs_btree_key { - u8 key_len; /* number of bytes in the key */ - struct hfs_cat_key cat; - struct hfs_ext_key ext; -} hfs_btree_key; - -#define HFS_MAX_CAT_KEYLEN (sizeof(struct hfs_cat_key) - sizeof(u8)) -#define HFS_MAX_EXT_KEYLEN (sizeof(struct hfs_ext_key) - sizeof(u8)) - -typedef union hfs_btree_key btree_key; - -struct hfs_extent { - __be16 block; - __be16 count; -}; -typedef struct hfs_extent hfs_extent_rec[3]; - -/* The catalog record for a file */ -struct hfs_cat_file { - s8 type; /* The type of entry */ - u8 reserved; - u8 Flags; /* Flags such as read-only */ - s8 Typ; /* file version number = 0 */ - struct hfs_finfo UsrWds; /* data used by the Finder */ - __be32 FlNum; /* The CNID */ - __be16 StBlk; /* obsolete */ - __be32 LgLen; /* The logical EOF of the data fork*/ - __be32 PyLen; /* The physical EOF of the data fork */ - __be16 RStBlk; /* obsolete */ - __be32 RLgLen; /* The logical EOF of the rsrc fork */ - __be32 RPyLen; /* The physical EOF of the rsrc fork */ - __be32 CrDat; /* The creation date */ - __be32 MdDat; /* The modified date */ - __be32 BkDat; /* The last backup date */ - struct hfs_fxinfo FndrInfo; /* more data for the Finder */ - __be16 ClpSize; /* number of bytes to allocate - when extending files */ - hfs_extent_rec ExtRec; /* first extent record - for the data fork */ - hfs_extent_rec RExtRec; /* first extent record - for the resource fork */ - u32 Resrv; /* reserved by Apple */ -} __packed; - -/* the catalog record for a directory */ -struct hfs_cat_dir { - s8 type; /* The type of entry */ - u8 reserved; - __be16 Flags; /* flags */ - __be16 Val; /* Valence: number of files and - dirs in the directory */ - __be32 DirID; /* The CNID */ - __be32 CrDat; /* The creation date */ - __be32 MdDat; /* The modification date */ - __be32 BkDat; /* The last backup date */ - struct hfs_dinfo UsrInfo; /* data used by the Finder */ - struct hfs_dxinfo FndrInfo; /* more data used by Finder */ - u8 Resrv[16]; /* reserved by Apple */ -} __packed; - -/* the catalog record for a thread */ -struct hfs_cat_thread { - s8 type; /* The type of entry */ - u8 reserved[9]; /* reserved by Apple */ - __be32 ParID; /* CNID of parent directory */ - struct hfs_name CName; /* The name of this entry */ -} __packed; - -/* A catalog tree record */ -typedef union hfs_cat_rec { - s8 type; /* The type of entry */ - struct hfs_cat_file file; - struct hfs_cat_dir dir; - struct hfs_cat_thread thread; -} hfs_cat_rec; - -struct hfs_mdb { - __be16 drSigWord; /* Signature word indicating fs type */ - __be32 drCrDate; /* fs creation date/time */ - __be32 drLsMod; /* fs modification date/time */ - __be16 drAtrb; /* fs attributes */ - __be16 drNmFls; /* number of files in root directory */ - __be16 drVBMSt; /* location (in 512-byte blocks) - of the volume bitmap */ - __be16 drAllocPtr; /* location (in allocation blocks) - to begin next allocation search */ - __be16 drNmAlBlks; /* number of allocation blocks */ - __be32 drAlBlkSiz; /* bytes in an allocation block */ - __be32 drClpSiz; /* clumpsize, the number of bytes to - allocate when extending a file */ - __be16 drAlBlSt; /* location (in 512-byte blocks) - of the first allocation block */ - __be32 drNxtCNID; /* CNID to assign to the next - file or directory created */ - __be16 drFreeBks; /* number of free allocation blocks */ - u8 drVN[28]; /* the volume label */ - __be32 drVolBkUp; /* fs backup date/time */ - __be16 drVSeqNum; /* backup sequence number */ - __be32 drWrCnt; /* fs write count */ - __be32 drXTClpSiz; /* clumpsize for the extents B-tree */ - __be32 drCTClpSiz; /* clumpsize for the catalog B-tree */ - __be16 drNmRtDirs; /* number of directories in - the root directory */ - __be32 drFilCnt; /* number of files in the fs */ - __be32 drDirCnt; /* number of directories in the fs */ - u8 drFndrInfo[32]; /* data used by the Finder */ - __be16 drEmbedSigWord; /* embedded volume signature */ - __be32 drEmbedExtent; /* starting block number (xdrStABN) - and number of allocation blocks - (xdrNumABlks) occupied by embedded - volume */ - __be32 drXTFlSize; /* bytes in the extents B-tree */ - hfs_extent_rec drXTExtRec; /* extents B-tree's first 3 extents */ - __be32 drCTFlSize; /* bytes in the catalog B-tree */ - hfs_extent_rec drCTExtRec; /* catalog B-tree's first 3 extents */ -} __packed; +#include <linux/hfs_common.h> /*======== Data structures kept in memory ========*/ |