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/*
* linux / include / linux / hfsplus_raw . h
*
* Copyright ( C ) 1999
* Brad Boyer ( flar @ pants . nu )
* ( C ) 2003 Ardis Technologies < roman @ ardistech . com >
*
* Format of structures on disk
* Information taken from Apple Technote # 1150 ( HFS Plus Volume Format )
*
*/
# ifndef _LINUX_HFSPLUS_RAW_H
# define _LINUX_HFSPLUS_RAW_H
# include <linux/types.h>
# define __packed __attribute__ ((packed))
/* Some constants */
# define HFSPLUS_SECTOR_SIZE 512
# define HFSPLUS_SECTOR_SHIFT 9
# define HFSPLUS_VOLHEAD_SECTOR 2
# define HFSPLUS_VOLHEAD_SIG 0x482b
# define HFSPLUS_SUPER_MAGIC 0x482b
# define HFSPLUS_CURRENT_VERSION 4
# 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_MOUNT_VERSION 0x482b4c78 /* 'H+Lx' */
/* Structures used on disk */
typedef __be32 hfsplus_cnid ;
typedef __be16 hfsplus_unichr ;
/* A "string" as used in filenames, etc. */
struct hfsplus_unistr {
__be16 length ;
hfsplus_unichr unicode [ 255 ] ;
} __packed ;
# define HFSPLUS_MAX_STRLEN 255
/* 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 ;
u8 finder_info [ 32 ] ;
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 */
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# 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)
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/* 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
# define HFS_NODE_HEADER 0x01
# define HFS_NODE_MAP 0x02
# define HFS_NODE_LEAF 0xFF
/* 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 reserved2 ;
__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
/* 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 */
/* HFS+ catalog entry key */
struct hfsplus_cat_key {
__be16 key_len ;
hfsplus_cnid parent ;
struct hfsplus_unistr name ;
} __packed ;
/* 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 DInfo user_info ;
struct DXInfo finder_info ;
__be32 text_encoding ;
u32 reserved ;
} __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 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 attribute bits */
# define HFSPLUS_FILE_LOCKED 0x0001
# define HFSPLUS_FILE_THREAD_EXISTS 0x0002
/* 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 12
/* HFS+ generic BTree key */
typedef union {
__be16 key_len ;
struct hfsplus_cat_key cat ;
struct hfsplus_ext_key ext ;
} __packed hfsplus_btree_key ;
# endif