extern int hfs_brec_find(struct hfs_find_data *fd);
extern int hfs_brec_read(struct hfs_find_data *fd, void *rec, u32 rec_len);
extern int hfs_brec_goto(struct hfs_find_data *fd, int cnt);
-
-
-struct hfs_bnode_desc {
- __be32 next; /* (V) Number of the next node at this level */
- __be32 prev; /* (V) Number of the prev node at this level */
- u8 type; /* (F) The type of node */
- u8 height; /* (F) The level of this node (leaves=1) */
- __be16 num_recs; /* (V) The number of records in this node */
- u16 reserved;
-} __packed;
-
-#define HFS_NODE_INDEX 0x00 /* An internal (index) node */
-#define HFS_NODE_HEADER 0x01 /* The tree header node (node 0) */
-#define HFS_NODE_MAP 0x02 /* Holds part of the bitmap of used nodes */
-#define HFS_NODE_LEAF 0xFF /* A leaf (ndNHeight==1) node */
-
-struct hfs_btree_header_rec {
- __be16 depth; /* (V) The number of levels in this B-tree */
- __be32 root; /* (V) The node number of the root node */
- __be32 leaf_count; /* (V) The number of leaf records */
- __be32 leaf_head; /* (V) The number of the first leaf node */
- __be32 leaf_tail; /* (V) The number of the last leaf node */
- __be16 node_size; /* (F) The number of bytes in a node (=512) */
- __be16 max_key_len; /* (F) The length of a key in an index node */
- __be32 node_count; /* (V) The total number of nodes */
- __be32 free_nodes; /* (V) The number of unused nodes */
- u16 reserved1;
- __be32 clump_size; /* (F) clump size. not usually used. */
- u8 btree_type; /* (F) BTree type */
- u8 reserved2;
- __be32 attributes; /* (F) attributes */
- u32 reserved3[16];
-} __packed;
-
-#define BTREE_ATTR_BADCLOSE 0x00000001 /* b-tree not closed properly. not
- used by hfsplus. */
-#define HFS_TREE_BIGKEYS 0x00000002 /* key length is u16 instead of u8.
- used by hfsplus. */
-#define HFS_TREE_VARIDXKEYS 0x00000004 /* variable key length instead of
- max key length. use din catalog
- b-tree but not in extents
- b-tree (hfsplus). */
#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 ========*/
#include <asm/byteorder.h>
#include <linux/uaccess.h>
-#include <linux/hfs_common.h>
#include "hfs.h"
#include <linux/buffer_head.h>
#include <linux/blkdev.h>
#include <linux/fs_context.h>
-#include <linux/hfs_common.h>
#include "hfsplus_raw.h"
/* Runtime config options */
#define _LINUX_HFSPLUS_RAW_H
#include <linux/types.h>
-
-/* Some constants */
-#define HFSPLUS_SECTOR_SIZE 512
-#define HFSPLUS_SECTOR_SHIFT 9
-#define HFSPLUS_VOLHEAD_SECTOR 2
-#define HFSPLUS_VOLHEAD_SIG 0x482b
-#define HFSPLUS_VOLHEAD_SIGX 0x4858
-#define HFSPLUS_SUPER_MAGIC 0x482b
-#define HFSPLUS_MIN_VERSION 4
-#define HFSPLUS_CURRENT_VERSION 5
-
-#define HFSP_WRAP_MAGIC 0x4244
-#define HFSP_WRAP_ATTRIB_SLOCK 0x8000
-#define HFSP_WRAP_ATTRIB_SPARED 0x0200
-
-#define HFSP_WRAPOFF_SIG 0x00
-#define HFSP_WRAPOFF_ATTRIB 0x0A
-#define HFSP_WRAPOFF_ABLKSIZE 0x14
-#define HFSP_WRAPOFF_ABLKSTART 0x1C
-#define HFSP_WRAPOFF_EMBEDSIG 0x7C
-#define HFSP_WRAPOFF_EMBEDEXT 0x7E
-
-#define HFSP_HIDDENDIR_NAME \
- "\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80HFS+ Private Data"
-
-#define HFSP_HARDLINK_TYPE 0x686c6e6b /* 'hlnk' */
-#define HFSP_HFSPLUS_CREATOR 0x6866732b /* 'hfs+' */
-
-#define HFSP_SYMLINK_TYPE 0x736c6e6b /* 'slnk' */
-#define HFSP_SYMLINK_CREATOR 0x72686170 /* 'rhap' */
-
-#define HFSP_MOUNT_VERSION 0x482b4c78 /* 'H+Lx' */
-
-/* Structures used on disk */
-
-typedef __be32 hfsplus_cnid;
-typedef __be16 hfsplus_unichr;
-
-#define HFSPLUS_MAX_STRLEN 255
-#define HFSPLUS_ATTR_MAX_STRLEN 127
-
-/* A "string" as used in filenames, etc. */
-struct hfsplus_unistr {
- __be16 length;
- hfsplus_unichr unicode[HFSPLUS_MAX_STRLEN];
-} __packed;
-
-/*
- * A "string" is used in attributes file
- * for name of extended attribute
- */
-struct hfsplus_attr_unistr {
- __be16 length;
- hfsplus_unichr unicode[HFSPLUS_ATTR_MAX_STRLEN];
-} __packed;
-
-/* POSIX permissions */
-struct hfsplus_perm {
- __be32 owner;
- __be32 group;
- u8 rootflags;
- u8 userflags;
- __be16 mode;
- __be32 dev;
-} __packed;
-
-#define HFSPLUS_FLG_NODUMP 0x01
-#define HFSPLUS_FLG_IMMUTABLE 0x02
-#define HFSPLUS_FLG_APPEND 0x04
-
-/* A single contiguous area of a file */
-struct hfsplus_extent {
- __be32 start_block;
- __be32 block_count;
-} __packed;
-typedef struct hfsplus_extent hfsplus_extent_rec[8];
-
-/* Information for a "Fork" in a file */
-struct hfsplus_fork_raw {
- __be64 total_size;
- __be32 clump_size;
- __be32 total_blocks;
- hfsplus_extent_rec extents;
-} __packed;
-
-/* HFS+ Volume Header */
-struct hfsplus_vh {
- __be16 signature;
- __be16 version;
- __be32 attributes;
- __be32 last_mount_vers;
- u32 reserved;
-
- __be32 create_date;
- __be32 modify_date;
- __be32 backup_date;
- __be32 checked_date;
-
- __be32 file_count;
- __be32 folder_count;
-
- __be32 blocksize;
- __be32 total_blocks;
- __be32 free_blocks;
-
- __be32 next_alloc;
- __be32 rsrc_clump_sz;
- __be32 data_clump_sz;
- hfsplus_cnid next_cnid;
-
- __be32 write_count;
- __be64 encodings_bmp;
-
- u32 finder_info[8];
-
- struct hfsplus_fork_raw alloc_file;
- struct hfsplus_fork_raw ext_file;
- struct hfsplus_fork_raw cat_file;
- struct hfsplus_fork_raw attr_file;
- struct hfsplus_fork_raw start_file;
-} __packed;
-
-/* HFS+ volume attributes */
-#define HFSPLUS_VOL_UNMNT (1 << 8)
-#define HFSPLUS_VOL_SPARE_BLK (1 << 9)
-#define HFSPLUS_VOL_NOCACHE (1 << 10)
-#define HFSPLUS_VOL_INCNSTNT (1 << 11)
-#define HFSPLUS_VOL_NODEID_REUSED (1 << 12)
-#define HFSPLUS_VOL_JOURNALED (1 << 13)
-#define HFSPLUS_VOL_SOFTLOCK (1 << 15)
-#define HFSPLUS_VOL_UNUSED_NODE_FIX (1 << 31)
-
-/* HFS+ BTree node descriptor */
-struct hfs_bnode_desc {
- __be32 next;
- __be32 prev;
- s8 type;
- u8 height;
- __be16 num_recs;
- u16 reserved;
-} __packed;
-
-/* HFS+ BTree node types */
-#define HFS_NODE_INDEX 0x00 /* An internal (index) node */
-#define HFS_NODE_HEADER 0x01 /* The tree header node (node 0) */
-#define HFS_NODE_MAP 0x02 /* Holds part of the bitmap of used nodes */
-#define HFS_NODE_LEAF 0xFF /* A leaf (ndNHeight==1) node */
-
-/* HFS+ BTree header */
-struct hfs_btree_header_rec {
- __be16 depth;
- __be32 root;
- __be32 leaf_count;
- __be32 leaf_head;
- __be32 leaf_tail;
- __be16 node_size;
- __be16 max_key_len;
- __be32 node_count;
- __be32 free_nodes;
- u16 reserved1;
- __be32 clump_size;
- u8 btree_type;
- u8 key_type;
- __be32 attributes;
- u32 reserved3[16];
-} __packed;
-
-/* BTree attributes */
-#define HFS_TREE_BIGKEYS 2
-#define HFS_TREE_VARIDXKEYS 4
-
-/* HFS+ BTree misc info */
-#define HFSPLUS_TREE_HEAD 0
-#define HFSPLUS_NODE_MXSZ 32768
-#define HFSPLUS_ATTR_TREE_NODE_SIZE 8192
-#define HFSPLUS_BTREE_HDR_NODE_RECS_COUNT 3
-#define HFSPLUS_BTREE_HDR_USER_BYTES 128
-
-/* Some special File ID numbers (stolen from hfs.h) */
-#define HFSPLUS_POR_CNID 1 /* Parent Of the Root */
-#define HFSPLUS_ROOT_CNID 2 /* ROOT directory */
-#define HFSPLUS_EXT_CNID 3 /* EXTents B-tree */
-#define HFSPLUS_CAT_CNID 4 /* CATalog B-tree */
-#define HFSPLUS_BAD_CNID 5 /* BAD blocks file */
-#define HFSPLUS_ALLOC_CNID 6 /* ALLOCation file */
-#define HFSPLUS_START_CNID 7 /* STARTup file */
-#define HFSPLUS_ATTR_CNID 8 /* ATTRibutes file */
-#define HFSPLUS_EXCH_CNID 15 /* ExchangeFiles temp id */
-#define HFSPLUS_FIRSTUSER_CNID 16 /* first available user id */
-
-/* btree key type */
-#define HFSPLUS_KEY_CASEFOLDING 0xCF /* case-insensitive */
-#define HFSPLUS_KEY_BINARY 0xBC /* case-sensitive */
-
-/* HFS+ catalog entry key */
-struct hfsplus_cat_key {
- __be16 key_len;
- hfsplus_cnid parent;
- struct hfsplus_unistr name;
-} __packed;
-
-#define HFSPLUS_CAT_KEYLEN (sizeof(struct hfsplus_cat_key))
-
-/* Structs from hfs.h */
-struct hfsp_point {
- __be16 v;
- __be16 h;
-} __packed;
-
-struct hfsp_rect {
- __be16 top;
- __be16 left;
- __be16 bottom;
- __be16 right;
-} __packed;
-
-
-/* HFS directory info (stolen from hfs.h */
-struct DInfo {
- struct hfsp_rect frRect;
- __be16 frFlags;
- struct hfsp_point frLocation;
- __be16 frView;
-} __packed;
-
-struct DXInfo {
- struct hfsp_point frScroll;
- __be32 frOpenChain;
- __be16 frUnused;
- __be16 frComment;
- __be32 frPutAway;
-} __packed;
-
-/* HFS+ folder data (part of an hfsplus_cat_entry) */
-struct hfsplus_cat_folder {
- __be16 type;
- __be16 flags;
- __be32 valence;
- hfsplus_cnid id;
- __be32 create_date;
- __be32 content_mod_date;
- __be32 attribute_mod_date;
- __be32 access_date;
- __be32 backup_date;
- struct hfsplus_perm permissions;
- struct_group_attr(info, __packed,
- struct DInfo user_info;
- struct DXInfo finder_info;
- );
- __be32 text_encoding;
- __be32 subfolders; /* Subfolder count in HFSX. Reserved in HFS+. */
-} __packed;
-
-/* HFS file info (stolen from hfs.h) */
-struct FInfo {
- __be32 fdType;
- __be32 fdCreator;
- __be16 fdFlags;
- struct hfsp_point fdLocation;
- __be16 fdFldr;
-} __packed;
-
-struct FXInfo {
- __be16 fdIconID;
- u8 fdUnused[8];
- __be16 fdComment;
- __be32 fdPutAway;
-} __packed;
-
-/* HFS+ file data (part of a cat_entry) */
-struct hfsplus_cat_file {
- __be16 type;
- __be16 flags;
- u32 reserved1;
- hfsplus_cnid id;
- __be32 create_date;
- __be32 content_mod_date;
- __be32 attribute_mod_date;
- __be32 access_date;
- __be32 backup_date;
- struct hfsplus_perm permissions;
- struct_group_attr(info, __packed,
- struct FInfo user_info;
- struct FXInfo finder_info;
- );
- __be32 text_encoding;
- u32 reserved2;
-
- struct hfsplus_fork_raw data_fork;
- struct hfsplus_fork_raw rsrc_fork;
-} __packed;
-
-/* File and folder flag bits */
-#define HFSPLUS_FILE_LOCKED 0x0001
-#define HFSPLUS_FILE_THREAD_EXISTS 0x0002
-#define HFSPLUS_XATTR_EXISTS 0x0004
-#define HFSPLUS_ACL_EXISTS 0x0008
-#define HFSPLUS_HAS_FOLDER_COUNT 0x0010 /* Folder has subfolder count
- * (HFSX only) */
-
-/* HFS+ catalog thread (part of a cat_entry) */
-struct hfsplus_cat_thread {
- __be16 type;
- s16 reserved;
- hfsplus_cnid parentID;
- struct hfsplus_unistr nodeName;
-} __packed;
-
-#define HFSPLUS_MIN_THREAD_SZ 10
-
-/* A data record in the catalog tree */
-typedef union {
- __be16 type;
- struct hfsplus_cat_folder folder;
- struct hfsplus_cat_file file;
- struct hfsplus_cat_thread thread;
-} __packed hfsplus_cat_entry;
-
-/* HFS+ catalog entry type */
-#define HFSPLUS_FOLDER 0x0001
-#define HFSPLUS_FILE 0x0002
-#define HFSPLUS_FOLDER_THREAD 0x0003
-#define HFSPLUS_FILE_THREAD 0x0004
-
-/* HFS+ extents tree key */
-struct hfsplus_ext_key {
- __be16 key_len;
- u8 fork_type;
- u8 pad;
- hfsplus_cnid cnid;
- __be32 start_block;
-} __packed;
-
-#define HFSPLUS_EXT_KEYLEN sizeof(struct hfsplus_ext_key)
-
-#define HFSPLUS_XATTR_FINDER_INFO_NAME "com.apple.FinderInfo"
-#define HFSPLUS_XATTR_ACL_NAME "com.apple.system.Security"
-
-#define HFSPLUS_ATTR_INLINE_DATA 0x10
-#define HFSPLUS_ATTR_FORK_DATA 0x20
-#define HFSPLUS_ATTR_EXTENTS 0x30
-
-/* HFS+ attributes tree key */
-struct hfsplus_attr_key {
- __be16 key_len;
- __be16 pad;
- hfsplus_cnid cnid;
- __be32 start_block;
- struct hfsplus_attr_unistr key_name;
-} __packed;
-
-#define HFSPLUS_ATTR_KEYLEN sizeof(struct hfsplus_attr_key)
-
-/* HFS+ fork data attribute */
-struct hfsplus_attr_fork_data {
- __be32 record_type;
- __be32 reserved;
- struct hfsplus_fork_raw the_fork;
-} __packed;
-
-/* HFS+ extension attribute */
-struct hfsplus_attr_extents {
- __be32 record_type;
- __be32 reserved;
- struct hfsplus_extent extents;
-} __packed;
-
-#define HFSPLUS_MAX_INLINE_DATA_SIZE 3802
-
-/* HFS+ attribute inline data */
-struct hfsplus_attr_inline_data {
- __be32 record_type;
- __be32 reserved1;
- u8 reserved2[6];
- __be16 length;
- u8 raw_bytes[HFSPLUS_MAX_INLINE_DATA_SIZE];
-} __packed;
-
-/* A data record in the attributes tree */
-typedef union {
- __be32 record_type;
- struct hfsplus_attr_fork_data fork_data;
- struct hfsplus_attr_extents extents;
- struct hfsplus_attr_inline_data inline_data;
-} __packed hfsplus_attr_entry;
-
-/* HFS+ generic BTree key */
-typedef union {
- __be16 key_len;
- struct hfsplus_cat_key cat;
- struct hfsplus_ext_key ext;
- struct hfsplus_attr_key attr;
-} __packed hfsplus_btree_key;
+#include <linux/hfs_common.h>
#endif
struct hfs_find_data cat_fd;
hfsplus_cat_entry entry;
u16 cat_entry_flags, cat_entry_type;
- u16 folder_finderinfo_len = sizeof(struct DInfo) +
- sizeof(struct DXInfo);
- u16 file_finderinfo_len = sizeof(struct FInfo) +
- sizeof(struct FXInfo);
+ u16 folder_finderinfo_len = sizeof(DInfo) + sizeof(DXInfo);
+ u16 file_finderinfo_len = sizeof(FInfo) + sizeof(FXInfo);
if ((!S_ISREG(inode->i_mode) &&
!S_ISDIR(inode->i_mode)) ||
ssize_t res = 0;
struct hfs_find_data fd;
u16 entry_type;
- u16 folder_rec_len = sizeof(struct DInfo) + sizeof(struct DXInfo);
- u16 file_rec_len = sizeof(struct FInfo) + sizeof(struct FXInfo);
+ u16 folder_rec_len = sizeof(DInfo) + sizeof(DXInfo);
+ u16 file_rec_len = sizeof(FInfo) + sizeof(FXInfo);
u16 record_len = max(folder_rec_len, file_rec_len);
- u8 folder_finder_info[sizeof(struct DInfo) + sizeof(struct DXInfo)];
- u8 file_finder_info[sizeof(struct FInfo) + sizeof(struct FXInfo)];
+ u8 folder_finder_info[sizeof(DInfo) + sizeof(DXInfo)];
+ u8 file_finder_info[sizeof(FInfo) + sizeof(FXInfo)];
if (size >= record_len) {
res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->cat_tree, &fd);
struct inode *inode = d_inode(dentry);
struct hfs_find_data fd;
u16 entry_type;
- u8 folder_finder_info[sizeof(struct DInfo) + sizeof(struct DXInfo)];
- u8 file_finder_info[sizeof(struct FInfo) + sizeof(struct FXInfo)];
+ u8 folder_finder_info[sizeof(DInfo) + sizeof(DXInfo)];
+ u8 file_finder_info[sizeof(FInfo) + sizeof(FXInfo)];
unsigned long len, found_bit;
int xattr_name_len, symbols_count;
entry_type = hfs_bnode_read_u16(fd.bnode, fd.entryoffset);
if (entry_type == HFSPLUS_FOLDER) {
- len = sizeof(struct DInfo) + sizeof(struct DXInfo);
+ len = sizeof(DInfo) + sizeof(DXInfo);
hfs_bnode_read(fd.bnode, folder_finder_info,
fd.entryoffset +
offsetof(struct hfsplus_cat_folder, user_info),
len);
found_bit = find_first_bit((void *)folder_finder_info, len*8);
} else if (entry_type == HFSPLUS_FILE) {
- len = sizeof(struct FInfo) + sizeof(struct FXInfo);
+ len = sizeof(FInfo) + sizeof(FXInfo);
hfs_bnode_read(fd.bnode, file_finder_info,
fd.entryoffset +
offsetof(struct hfsplus_cat_file, user_info),
pr_debug("pid %d:%s:%d %s(): " fmt, \
current->pid, __FILE__, __LINE__, __func__, ##__VA_ARGS__) \
+/*
+ * Format of structures on disk
+ * Information taken from Apple Technote #1150 (HFS Plus Volume Format)
+ */
+
+/* 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) */
+
+#define HFSPLUS_VOLHEAD_SIG 0x482b
+#define HFSPLUS_VOLHEAD_SIGX 0x4858
+#define HFSPLUS_SUPER_MAGIC 0x482b
+
+#define HFSP_WRAP_MAGIC 0x4244
+#define HFSP_WRAP_ATTRIB_SLOCK 0x8000
+#define HFSP_WRAP_ATTRIB_SPARED 0x0200
+
+#define HFSP_WRAPOFF_SIG 0x00
+#define HFSP_WRAPOFF_ATTRIB 0x0A
+#define HFSP_WRAPOFF_ABLKSIZE 0x14
+#define HFSP_WRAPOFF_ABLKSTART 0x1C
+#define HFSP_WRAPOFF_EMBEDSIG 0x7C
+#define HFSP_WRAPOFF_EMBEDEXT 0x7E
+
+#define HFSP_HARDLINK_TYPE 0x686c6e6b /* 'hlnk' */
+#define HFSP_HFSPLUS_CREATOR 0x6866732b /* 'hfs+' */
+
+#define HFSP_SYMLINK_TYPE 0x736c6e6b /* 'slnk' */
+#define HFSP_SYMLINK_CREATOR 0x72686170 /* 'rhap' */
+
+#define HFSP_MOUNT_VERSION 0x482b4c78 /* 'H+Lx' */
+
+#define HFSP_HIDDENDIR_NAME \
+ "\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80HFS+ Private Data"
+
+/* 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_MAX_VALENCE 32767U
+
+#define HFSPLUS_SECTOR_SIZE HFS_SECTOR_SIZE
+#define HFSPLUS_SECTOR_SHIFT HFS_SECTOR_SIZE_BITS
+#define HFSPLUS_VOLHEAD_SECTOR 2
+#define HFSPLUS_MIN_VERSION 4
+#define HFSPLUS_CURRENT_VERSION 5
+
+#define HFS_NAMELEN 31 /* maximum length of an HFS filename */
+#define HFS_MAX_NAMELEN 128
+
+#define HFSPLUS_MAX_STRLEN 255
+#define HFSPLUS_ATTR_MAX_STRLEN 127
+
+/* 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)
+
+/* 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
+
+/* Some special File ID numbers */
+#define HFS_POR_CNID 1 /* Parent Of the Root */
+#define HFSPLUS_POR_CNID HFS_POR_CNID
+#define HFS_ROOT_CNID 2 /* ROOT directory */
+#define HFSPLUS_ROOT_CNID HFS_ROOT_CNID
+#define HFS_EXT_CNID 3 /* EXTents B-tree */
+#define HFSPLUS_EXT_CNID HFS_EXT_CNID
+#define HFS_CAT_CNID 4 /* CATalog B-tree */
+#define HFSPLUS_CAT_CNID HFS_CAT_CNID
+#define HFS_BAD_CNID 5 /* BAD blocks file */
+#define HFSPLUS_BAD_CNID HFS_BAD_CNID
+#define HFS_ALLOC_CNID 6 /* ALLOCation file (HFS+) */
+#define HFSPLUS_ALLOC_CNID HFS_ALLOC_CNID
+#define HFS_START_CNID 7 /* STARTup file (HFS+) */
+#define HFSPLUS_START_CNID HFS_START_CNID
+#define HFS_ATTR_CNID 8 /* ATTRibutes file (HFS+) */
+#define HFSPLUS_ATTR_CNID HFS_ATTR_CNID
+#define HFS_EXCH_CNID 15 /* ExchangeFiles temp id */
+#define HFSPLUS_EXCH_CNID HFS_EXCH_CNID
+#define HFS_FIRSTUSER_CNID 16 /* first available user id */
+#define HFSPLUS_FIRSTUSER_CNID HFS_FIRSTUSER_CNID
+
+/*======== HFS/HFS+ structures as they appear on the disk ========*/
+
+typedef __be32 hfsplus_cnid;
+typedef __be16 hfsplus_unichr;
+
+/* Pascal-style string of up to 31 characters */
+struct hfs_name {
+ u8 len;
+ u8 name[HFS_NAMELEN];
+} __packed;
+
+/* A "string" as used in filenames, etc. */
+struct hfsplus_unistr {
+ __be16 length;
+ hfsplus_unichr unicode[HFSPLUS_MAX_STRLEN];
+} __packed;
+
+/*
+ * A "string" is used in attributes file
+ * for name of extended attribute
+ */
+struct hfsplus_attr_unistr {
+ __be16 length;
+ hfsplus_unichr unicode[HFSPLUS_ATTR_MAX_STRLEN];
+} __packed;
+
+struct hfs_extent {
+ __be16 block;
+ __be16 count;
+};
+typedef struct hfs_extent hfs_extent_rec[3];
+
+/* A single contiguous area of a file */
+struct hfsplus_extent {
+ __be32 start_block;
+ __be32 block_count;
+} __packed;
+typedef struct hfsplus_extent hfsplus_extent_rec[8];
+
+/* Information for a "Fork" in a file */
+struct hfsplus_fork_raw {
+ __be64 total_size;
+ __be32 clump_size;
+ __be32 total_blocks;
+ hfsplus_extent_rec extents;
+} __packed;
+
+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;
+
+/* HFS+ Volume Header */
+struct hfsplus_vh {
+ __be16 signature;
+ __be16 version;
+ __be32 attributes;
+ __be32 last_mount_vers;
+ u32 reserved;
+
+ __be32 create_date;
+ __be32 modify_date;
+ __be32 backup_date;
+ __be32 checked_date;
+
+ __be32 file_count;
+ __be32 folder_count;
+
+ __be32 blocksize;
+ __be32 total_blocks;
+ __be32 free_blocks;
+
+ __be32 next_alloc;
+ __be32 rsrc_clump_sz;
+ __be32 data_clump_sz;
+ hfsplus_cnid next_cnid;
+
+ __be32 write_count;
+ __be64 encodings_bmp;
+
+ u32 finder_info[8];
+
+ struct hfsplus_fork_raw alloc_file;
+ struct hfsplus_fork_raw ext_file;
+ struct hfsplus_fork_raw cat_file;
+ struct hfsplus_fork_raw attr_file;
+ struct hfsplus_fork_raw start_file;
+} __packed;
+
+/* HFS+ volume attributes */
+#define HFSPLUS_VOL_UNMNT (1 << 8)
+#define HFSPLUS_VOL_SPARE_BLK (1 << 9)
+#define HFSPLUS_VOL_NOCACHE (1 << 10)
+#define HFSPLUS_VOL_INCNSTNT (1 << 11)
+#define HFSPLUS_VOL_NODEID_REUSED (1 << 12)
+#define HFSPLUS_VOL_JOURNALED (1 << 13)
+#define HFSPLUS_VOL_SOFTLOCK (1 << 15)
+#define HFSPLUS_VOL_UNUSED_NODE_FIX (1 << 31)
+
+struct hfs_point {
+ __be16 v;
+ __be16 h;
+} __packed;
+
+typedef struct hfs_point hfsp_point;
+
+struct hfs_rect {
+ __be16 top;
+ __be16 left;
+ __be16 bottom;
+ __be16 right;
+} __packed;
+
+typedef struct hfs_rect hfsp_rect;
+
+struct hfs_finfo {
+ __be32 fdType;
+ __be32 fdCreator;
+ __be16 fdFlags;
+ struct hfs_point fdLocation;
+ __be16 fdFldr;
+} __packed;
+
+typedef struct hfs_finfo FInfo;
+
+struct hfs_fxinfo {
+ __be16 fdIconID;
+ u8 fdUnused[8];
+ __be16 fdComment;
+ __be32 fdPutAway;
+} __packed;
+
+typedef struct hfs_fxinfo FXInfo;
+
+struct hfs_dinfo {
+ struct hfs_rect frRect;
+ __be16 frFlags;
+ struct hfs_point frLocation;
+ __be16 frView;
+} __packed;
+
+typedef struct hfs_dinfo DInfo;
+
+struct hfs_dxinfo {
+ struct hfs_point frScroll;
+ __be32 frOpenChain;
+ __be16 frUnused;
+ __be16 frComment;
+ __be32 frPutAway;
+} __packed;
+
+typedef struct hfs_dxinfo DXInfo;
+
+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;
+
+/* 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;
+
+/* HFS+ catalog entry key */
+struct hfsplus_cat_key {
+ __be16 key_len;
+ hfsplus_cnid parent;
+ struct hfsplus_unistr name;
+} __packed;
+
+#define HFSPLUS_CAT_KEYLEN (sizeof(struct hfsplus_cat_key))
+
+/* 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;
+
+/* HFS+ extents tree key */
+struct hfsplus_ext_key {
+ __be16 key_len;
+ u8 fork_type;
+ u8 pad;
+ hfsplus_cnid cnid;
+ __be32 start_block;
+} __packed;
+
+#define HFSPLUS_EXT_KEYLEN sizeof(struct hfsplus_ext_key)
+
+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;
+
+/* 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;
+
+/* POSIX permissions */
+struct hfsplus_perm {
+ __be32 owner;
+ __be32 group;
+ u8 rootflags;
+ u8 userflags;
+ __be16 mode;
+ __be32 dev;
+} __packed;
+
+#define HFSPLUS_FLG_NODUMP 0x01
+#define HFSPLUS_FLG_IMMUTABLE 0x02
+#define HFSPLUS_FLG_APPEND 0x04
+
+/* HFS/HFS+ BTree node descriptor */
+struct hfs_bnode_desc {
+ __be32 next; /* (V) Number of the next node at this level */
+ __be32 prev; /* (V) Number of the prev node at this level */
+ u8 type; /* (F) The type of node */
+ u8 height; /* (F) The level of this node (leaves=1) */
+ __be16 num_recs; /* (V) The number of records in this node */
+ u16 reserved;
+} __packed;
+
+/* HFS/HFS+ BTree node types */
+#define HFS_NODE_INDEX 0x00 /* An internal (index) node */
+#define HFS_NODE_HEADER 0x01 /* The tree header node (node 0) */
+#define HFS_NODE_MAP 0x02 /* Holds part of the bitmap of used nodes */
+#define HFS_NODE_LEAF 0xFF /* A leaf (ndNHeight==1) node */
+
+/* HFS/HFS+ BTree header */
+struct hfs_btree_header_rec {
+ __be16 depth; /* (V) The number of levels in this B-tree */
+ __be32 root; /* (V) The node number of the root node */
+ __be32 leaf_count; /* (V) The number of leaf records */
+ __be32 leaf_head; /* (V) The number of the first leaf node */
+ __be32 leaf_tail; /* (V) The number of the last leaf node */
+ __be16 node_size; /* (F) The number of bytes in a node (=512) */
+ __be16 max_key_len; /* (F) The length of a key in an index node */
+ __be32 node_count; /* (V) The total number of nodes */
+ __be32 free_nodes; /* (V) The number of unused nodes */
+ u16 reserved1;
+ __be32 clump_size; /* (F) clump size. not usually used. */
+ u8 btree_type; /* (F) BTree type */
+ u8 key_type;
+ __be32 attributes; /* (F) attributes */
+ u32 reserved3[16];
+} __packed;
+
+/* BTree attributes */
+#define BTREE_ATTR_BADCLOSE 0x00000001 /* b-tree not closed properly. not
+ used by hfsplus. */
+#define HFS_TREE_BIGKEYS 0x00000002 /* key length is u16 instead of u8.
+ used by hfsplus. */
+#define HFS_TREE_VARIDXKEYS 0x00000004 /* variable key length instead of
+ max key length. use din catalog
+ b-tree but not in extents
+ b-tree (hfsplus). */
+
+/* HFS+ BTree misc info */
+#define HFSPLUS_TREE_HEAD 0
+#define HFSPLUS_NODE_MXSZ 32768
+#define HFSPLUS_ATTR_TREE_NODE_SIZE 8192
+#define HFSPLUS_BTREE_HDR_NODE_RECS_COUNT 3
+#define HFSPLUS_BTREE_HDR_USER_BYTES 128
+
+/* btree key type */
+#define HFSPLUS_KEY_CASEFOLDING 0xCF /* case-insensitive */
+#define HFSPLUS_KEY_BINARY 0xBC /* case-sensitive */
+
+/* HFS+ folder data (part of an hfsplus_cat_entry) */
+struct hfsplus_cat_folder {
+ __be16 type;
+ __be16 flags;
+ __be32 valence;
+ hfsplus_cnid id;
+ __be32 create_date;
+ __be32 content_mod_date;
+ __be32 attribute_mod_date;
+ __be32 access_date;
+ __be32 backup_date;
+ struct hfsplus_perm permissions;
+ struct_group_attr(info, __packed,
+ DInfo user_info;
+ DXInfo finder_info;
+ );
+ __be32 text_encoding;
+ __be32 subfolders; /* Subfolder count in HFSX. Reserved in HFS+. */
+} __packed;
+
+/* HFS+ file data (part of a cat_entry) */
+struct hfsplus_cat_file {
+ __be16 type;
+ __be16 flags;
+ u32 reserved1;
+ hfsplus_cnid id;
+ __be32 create_date;
+ __be32 content_mod_date;
+ __be32 attribute_mod_date;
+ __be32 access_date;
+ __be32 backup_date;
+ struct hfsplus_perm permissions;
+ struct_group_attr(info, __packed,
+ FInfo user_info;
+ FXInfo finder_info;
+ );
+ __be32 text_encoding;
+ u32 reserved2;
+
+ struct hfsplus_fork_raw data_fork;
+ struct hfsplus_fork_raw rsrc_fork;
+} __packed;
+
+/* File and folder flag bits */
+#define HFSPLUS_FILE_LOCKED 0x0001
+#define HFSPLUS_FILE_THREAD_EXISTS 0x0002
+#define HFSPLUS_XATTR_EXISTS 0x0004
+#define HFSPLUS_ACL_EXISTS 0x0008
+#define HFSPLUS_HAS_FOLDER_COUNT 0x0010 /* Folder has subfolder count
+ * (HFSX only) */
+
+/* HFS+ catalog thread (part of a cat_entry) */
+struct hfsplus_cat_thread {
+ __be16 type;
+ s16 reserved;
+ hfsplus_cnid parentID;
+ struct hfsplus_unistr nodeName;
+} __packed;
+
+#define HFSPLUS_MIN_THREAD_SZ 10
+
+/* A data record in the catalog tree */
+typedef union {
+ __be16 type;
+ struct hfsplus_cat_folder folder;
+ struct hfsplus_cat_file file;
+ struct hfsplus_cat_thread thread;
+} __packed hfsplus_cat_entry;
+
+/* HFS+ catalog entry type */
+#define HFSPLUS_FOLDER 0x0001
+#define HFSPLUS_FILE 0x0002
+#define HFSPLUS_FOLDER_THREAD 0x0003
+#define HFSPLUS_FILE_THREAD 0x0004
+
+#define HFSPLUS_XATTR_FINDER_INFO_NAME "com.apple.FinderInfo"
+#define HFSPLUS_XATTR_ACL_NAME "com.apple.system.Security"
+
+#define HFSPLUS_ATTR_INLINE_DATA 0x10
+#define HFSPLUS_ATTR_FORK_DATA 0x20
+#define HFSPLUS_ATTR_EXTENTS 0x30
+
+/* HFS+ attributes tree key */
+struct hfsplus_attr_key {
+ __be16 key_len;
+ __be16 pad;
+ hfsplus_cnid cnid;
+ __be32 start_block;
+ struct hfsplus_attr_unistr key_name;
+} __packed;
+
+#define HFSPLUS_ATTR_KEYLEN sizeof(struct hfsplus_attr_key)
+
+/* HFS+ fork data attribute */
+struct hfsplus_attr_fork_data {
+ __be32 record_type;
+ __be32 reserved;
+ struct hfsplus_fork_raw the_fork;
+} __packed;
+
+/* HFS+ extension attribute */
+struct hfsplus_attr_extents {
+ __be32 record_type;
+ __be32 reserved;
+ struct hfsplus_extent extents;
+} __packed;
+
+#define HFSPLUS_MAX_INLINE_DATA_SIZE 3802
+
+/* HFS+ attribute inline data */
+struct hfsplus_attr_inline_data {
+ __be32 record_type;
+ __be32 reserved1;
+ u8 reserved2[6];
+ __be16 length;
+ u8 raw_bytes[HFSPLUS_MAX_INLINE_DATA_SIZE];
+} __packed;
+
+/* A data record in the attributes tree */
+typedef union {
+ __be32 record_type;
+ struct hfsplus_attr_fork_data fork_data;
+ struct hfsplus_attr_extents extents;
+ struct hfsplus_attr_inline_data inline_data;
+} __packed hfsplus_attr_entry;
+
+/* HFS+ generic BTree key */
+typedef union {
+ __be16 key_len;
+ struct hfsplus_cat_key cat;
+ struct hfsplus_ext_key ext;
+ struct hfsplus_attr_key attr;
+} __packed hfsplus_btree_key;
+
#endif /* _HFS_COMMON_H_ */
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