[thirdparty/kernel/linux.git] / fs / hfsplus / hfsplus_raw.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  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>

/* 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 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 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;

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	/*
	3	* linux/include/linux/hfsplus_raw.h
	4	*
	5	* Copyright (C) 1999
	6	* Brad Boyer (flar@pants.nu)
	7	* (C) 2003 Ardis Technologies <roman@ardistech.com>
	8	*
	9	* Format of structures on disk
	10	* Information taken from Apple Technote #1150 (HFS Plus Volume Format)
	11	*
	12	*/
	13
	14	#ifndef _LINUX_HFSPLUS_RAW_H
	15	#define _LINUX_HFSPLUS_RAW_H
	16
	17	#include <linux/types.h>
	18
1da177e4 LT	19	/* Some constants */
	20	#define HFSPLUS_SECTOR_SIZE 512
	21	#define HFSPLUS_SECTOR_SHIFT 9
	22	#define HFSPLUS_VOLHEAD_SECTOR 2
	23	#define HFSPLUS_VOLHEAD_SIG 0x482b
2179d372	24	#define HFSPLUS_VOLHEAD_SIGX 0x4858
1da177e4	25	#define HFSPLUS_SUPER_MAGIC 0x482b
2179d372 DE	26	#define HFSPLUS_MIN_VERSION 4
2179d372 DE	27	#define HFSPLUS_CURRENT_VERSION 5
1da177e4 LT	28
	29	#define HFSP_WRAP_MAGIC 0x4244
	30	#define HFSP_WRAP_ATTRIB_SLOCK 0x8000
	31	#define HFSP_WRAP_ATTRIB_SPARED 0x0200
	32
	33	#define HFSP_WRAPOFF_SIG 0x00
	34	#define HFSP_WRAPOFF_ATTRIB 0x0A
	35	#define HFSP_WRAPOFF_ABLKSIZE 0x14
	36	#define HFSP_WRAPOFF_ABLKSTART 0x1C
	37	#define HFSP_WRAPOFF_EMBEDSIG 0x7C
	38	#define HFSP_WRAPOFF_EMBEDEXT 0x7E
	39
2753cc28 AS	40	#define HFSP_HIDDENDIR_NAME \
2753cc28 AS	41	"\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80HFS+ Private Data"
1da177e4 LT	42
	43	#define HFSP_HARDLINK_TYPE 0x686c6e6b /* 'hlnk' */
	44	#define HFSP_HFSPLUS_CREATOR 0x6866732b /* 'hfs+' */
	45
6b192832 RZ	46	#define HFSP_SYMLINK_TYPE 0x736c6e6b /* 'slnk' */
	47	#define HFSP_SYMLINK_CREATOR 0x72686170 /* 'rhap' */
	48
1da177e4 LT	49	#define HFSP_MOUNT_VERSION 0x482b4c78 /* 'H+Lx' */
	50
	51	/* Structures used on disk */
	52
	53	typedef __be32 hfsplus_cnid;
	54	typedef __be16 hfsplus_unichr;
	55
9ed083d8 VD	56	#define HFSPLUS_MAX_STRLEN 255
	57	#define HFSPLUS_ATTR_MAX_STRLEN 127
	58
1da177e4 LT	59	/* A "string" as used in filenames, etc. */
	60	struct hfsplus_unistr {
	61	__be16 length;
9ed083d8	62	hfsplus_unichr unicode[HFSPLUS_MAX_STRLEN];
1da177e4 LT	63	} __packed;
1da177e4 LT	64
9ed083d8 VD	65	/*
	66	* A "string" is used in attributes file
	67	* for name of extended attribute
	68	*/
	69	struct hfsplus_attr_unistr {
	70	__be16 length;
	71	hfsplus_unichr unicode[HFSPLUS_ATTR_MAX_STRLEN];
	72	} __packed;
1da177e4 LT	73
	74	/* POSIX permissions */
	75	struct hfsplus_perm {
	76	__be32 owner;
	77	__be32 group;
	78	u8 rootflags;
	79	u8 userflags;
	80	__be16 mode;
	81	__be32 dev;
	82	} __packed;
	83
	84	#define HFSPLUS_FLG_NODUMP 0x01
	85	#define HFSPLUS_FLG_IMMUTABLE 0x02
	86	#define HFSPLUS_FLG_APPEND 0x04
	87
	88	/* A single contiguous area of a file */
	89	struct hfsplus_extent {
	90	__be32 start_block;
	91	__be32 block_count;
	92	} __packed;
	93	typedef struct hfsplus_extent hfsplus_extent_rec[8];
	94
	95	/* Information for a "Fork" in a file */
	96	struct hfsplus_fork_raw {
	97	__be64 total_size;
	98	__be32 clump_size;
	99	__be32 total_blocks;
	100	hfsplus_extent_rec extents;
	101	} __packed;
	102
	103	/* HFS+ Volume Header */
	104	struct hfsplus_vh {
	105	__be16 signature;
	106	__be16 version;
	107	__be32 attributes;
	108	__be32 last_mount_vers;
	109	u32 reserved;
	110
	111	__be32 create_date;
	112	__be32 modify_date;
	113	__be32 backup_date;
	114	__be32 checked_date;
	115
	116	__be32 file_count;
	117	__be32 folder_count;
	118
	119	__be32 blocksize;
	120	__be32 total_blocks;
	121	__be32 free_blocks;
	122
	123	__be32 next_alloc;
	124	__be32 rsrc_clump_sz;
	125	__be32 data_clump_sz;
	126	hfsplus_cnid next_cnid;
	127
	128	__be32 write_count;
	129	__be64 encodings_bmp;
	130
0347b6e9	131	u32 finder_info[8];
1da177e4 LT	132
	133	struct hfsplus_fork_raw alloc_file;
	134	struct hfsplus_fork_raw ext_file;
	135	struct hfsplus_fork_raw cat_file;
	136	struct hfsplus_fork_raw attr_file;
	137	struct hfsplus_fork_raw start_file;
	138	} __packed;
	139
	140	/* HFS+ volume attributes */
b0b623c3 RZ	141	#define HFSPLUS_VOL_UNMNT (1 << 8)
	142	#define HFSPLUS_VOL_SPARE_BLK (1 << 9)
	143	#define HFSPLUS_VOL_NOCACHE (1 << 10)
	144	#define HFSPLUS_VOL_INCNSTNT (1 << 11)
	145	#define HFSPLUS_VOL_NODEID_REUSED (1 << 12)
	146	#define HFSPLUS_VOL_JOURNALED (1 << 13)
	147	#define HFSPLUS_VOL_SOFTLOCK (1 << 15)
2cd282a1	148	#define HFSPLUS_VOL_UNUSED_NODE_FIX (1 << 31)
1da177e4 LT	149
	150	/* HFS+ BTree node descriptor */
	151	struct hfs_bnode_desc {
	152	__be32 next;
	153	__be32 prev;
	154	s8 type;
	155	u8 height;
	156	__be16 num_recs;
	157	u16 reserved;
	158	} __packed;
	159
	160	/* HFS+ BTree node types */
74a797d9 MO	161	#define HFS_NODE_INDEX 0x00 /* An internal (index) node */
	162	#define HFS_NODE_HEADER 0x01 /* The tree header node (node 0) */
	163	#define HFS_NODE_MAP 0x02 /* Holds part of the bitmap of used nodes */
	164	#define HFS_NODE_LEAF 0xFF /* A leaf (ndNHeight==1) node */
1da177e4 LT	165
	166	/* HFS+ BTree header */
	167	struct hfs_btree_header_rec {
	168	__be16 depth;
	169	__be32 root;
	170	__be32 leaf_count;
	171	__be32 leaf_head;
	172	__be32 leaf_tail;
	173	__be16 node_size;
	174	__be16 max_key_len;
	175	__be32 node_count;
	176	__be32 free_nodes;
	177	u16 reserved1;
	178	__be32 clump_size;
	179	u8 btree_type;
2179d372	180	u8 key_type;
1da177e4 LT	181	__be32 attributes;
	182	u32 reserved3[16];
	183	} __packed;
	184
	185	/* BTree attributes */
	186	#define HFS_TREE_BIGKEYS 2
	187	#define HFS_TREE_VARIDXKEYS 4
	188
	189	/* HFS+ BTree misc info */
	190	#define HFSPLUS_TREE_HEAD 0
	191	#define HFSPLUS_NODE_MXSZ 32768
099e9245 VD	192	#define HFSPLUS_ATTR_TREE_NODE_SIZE 8192
	193	#define HFSPLUS_BTREE_HDR_NODE_RECS_COUNT 3
	194	#define HFSPLUS_BTREE_HDR_USER_BYTES 128
1da177e4 LT	195
	196	/* Some special File ID numbers (stolen from hfs.h) */
	197	#define HFSPLUS_POR_CNID 1 /* Parent Of the Root */
	198	#define HFSPLUS_ROOT_CNID 2 /* ROOT directory */
	199	#define HFSPLUS_EXT_CNID 3 /* EXTents B-tree */
	200	#define HFSPLUS_CAT_CNID 4 /* CATalog B-tree */
	201	#define HFSPLUS_BAD_CNID 5 /* BAD blocks file */
	202	#define HFSPLUS_ALLOC_CNID 6 /* ALLOCation file */
	203	#define HFSPLUS_START_CNID 7 /* STARTup file */
	204	#define HFSPLUS_ATTR_CNID 8 /* ATTRibutes file */
	205	#define HFSPLUS_EXCH_CNID 15 /* ExchangeFiles temp id */
	206	#define HFSPLUS_FIRSTUSER_CNID 16 /* first available user id */
	207
2179d372 DE	208	/* btree key type */
	209	#define HFSPLUS_KEY_CASEFOLDING 0xCF /* case-insensitive */
	210	#define HFSPLUS_KEY_BINARY 0xBC /* case-sensitive */
	211
1da177e4 LT	212	/* HFS+ catalog entry key */
	213	struct hfsplus_cat_key {
	214	__be16 key_len;
	215	hfsplus_cnid parent;
	216	struct hfsplus_unistr name;
	217	} __packed;
	218
9250f925	219	#define HFSPLUS_CAT_KEYLEN (sizeof(struct hfsplus_cat_key))
1da177e4 LT	220
	221	/* Structs from hfs.h */
	222	struct hfsp_point {
	223	__be16 v;
	224	__be16 h;
	225	} __packed;
	226
	227	struct hfsp_rect {
	228	__be16 top;
	229	__be16 left;
	230	__be16 bottom;
	231	__be16 right;
	232	} __packed;
	233
	234
	235	/* HFS directory info (stolen from hfs.h */
	236	struct DInfo {
	237	struct hfsp_rect frRect;
	238	__be16 frFlags;
	239	struct hfsp_point frLocation;
	240	__be16 frView;
	241	} __packed;
	242
	243	struct DXInfo {
	244	struct hfsp_point frScroll;
	245	__be32 frOpenChain;
	246	__be16 frUnused;
	247	__be16 frComment;
	248	__be32 frPutAway;
	249	} __packed;
	250
	251	/* HFS+ folder data (part of an hfsplus_cat_entry) */
	252	struct hfsplus_cat_folder {
	253	__be16 type;
	254	__be16 flags;
	255	__be32 valence;
	256	hfsplus_cnid id;
	257	__be32 create_date;
	258	__be32 content_mod_date;
	259	__be32 attribute_mod_date;
	260	__be32 access_date;
	261	__be32 backup_date;
	262	struct hfsplus_perm permissions;
	263	struct DInfo user_info;
	264	struct DXInfo finder_info;
	265	__be32 text_encoding;
d7d673a5	266	__be32 subfolders; /* Subfolder count in HFSX. Reserved in HFS+. */
1da177e4 LT	267	} __packed;
	268
	269	/* HFS file info (stolen from hfs.h) */
	270	struct FInfo {
	271	__be32 fdType;
	272	__be32 fdCreator;
	273	__be16 fdFlags;
	274	struct hfsp_point fdLocation;
	275	__be16 fdFldr;
	276	} __packed;
	277
	278	struct FXInfo {
	279	__be16 fdIconID;
	280	u8 fdUnused[8];
	281	__be16 fdComment;
	282	__be32 fdPutAway;
	283	} __packed;
	284
	285	/* HFS+ file data (part of a cat_entry) */
	286	struct hfsplus_cat_file {
	287	__be16 type;
	288	__be16 flags;
	289	u32 reserved1;
	290	hfsplus_cnid id;
	291	__be32 create_date;
	292	__be32 content_mod_date;
	293	__be32 attribute_mod_date;
	294	__be32 access_date;
	295	__be32 backup_date;
	296	struct hfsplus_perm permissions;
	297	struct FInfo user_info;
	298	struct FXInfo finder_info;
	299	__be32 text_encoding;
	300	u32 reserved2;
	301
	302	struct hfsplus_fork_raw data_fork;
	303	struct hfsplus_fork_raw rsrc_fork;
	304	} __packed;
	305
d7d673a5	306	/* File and folder flag bits */
1da177e4 LT	307	#define HFSPLUS_FILE_LOCKED 0x0001
1da177e4 LT	308	#define HFSPLUS_FILE_THREAD_EXISTS 0x0002
9ed083d8 VD	309	#define HFSPLUS_XATTR_EXISTS 0x0004
9ed083d8 VD	310	#define HFSPLUS_ACL_EXISTS 0x0008
d7d673a5 SA	311	#define HFSPLUS_HAS_FOLDER_COUNT 0x0010 /* Folder has subfolder count
d7d673a5 SA	312	* (HFSX only) */
1da177e4 LT	313
	314	/* HFS+ catalog thread (part of a cat_entry) */
	315	struct hfsplus_cat_thread {
	316	__be16 type;
	317	s16 reserved;
	318	hfsplus_cnid parentID;
	319	struct hfsplus_unistr nodeName;
	320	} __packed;
	321
	322	#define HFSPLUS_MIN_THREAD_SZ 10
	323
	324	/* A data record in the catalog tree */
	325	typedef union {
	326	__be16 type;
	327	struct hfsplus_cat_folder folder;
	328	struct hfsplus_cat_file file;
	329	struct hfsplus_cat_thread thread;
	330	} __packed hfsplus_cat_entry;
	331
	332	/* HFS+ catalog entry type */
	333	#define HFSPLUS_FOLDER 0x0001
	334	#define HFSPLUS_FILE 0x0002
	335	#define HFSPLUS_FOLDER_THREAD 0x0003
	336	#define HFSPLUS_FILE_THREAD 0x0004
	337
	338	/* HFS+ extents tree key */
	339	struct hfsplus_ext_key {
	340	__be16 key_len;
	341	u8 fork_type;
	342	u8 pad;
	343	hfsplus_cnid cnid;
	344	__be32 start_block;
	345	} __packed;
	346
9250f925	347	#define HFSPLUS_EXT_KEYLEN sizeof(struct hfsplus_ext_key)
1da177e4	348
9ed083d8 VD	349	#define HFSPLUS_XATTR_FINDER_INFO_NAME "com.apple.FinderInfo"
	350	#define HFSPLUS_XATTR_ACL_NAME "com.apple.system.Security"
	351
	352	#define HFSPLUS_ATTR_INLINE_DATA 0x10
	353	#define HFSPLUS_ATTR_FORK_DATA 0x20
	354	#define HFSPLUS_ATTR_EXTENTS 0x30
	355
	356	/* HFS+ attributes tree key */
	357	struct hfsplus_attr_key {
	358	__be16 key_len;
	359	__be16 pad;
	360	hfsplus_cnid cnid;
	361	__be32 start_block;
	362	struct hfsplus_attr_unistr key_name;
	363	} __packed;
	364
	365	#define HFSPLUS_ATTR_KEYLEN sizeof(struct hfsplus_attr_key)
	366
	367	/* HFS+ fork data attribute */
	368	struct hfsplus_attr_fork_data {
	369	__be32 record_type;
	370	__be32 reserved;
	371	struct hfsplus_fork_raw the_fork;
	372	} __packed;
	373
	374	/* HFS+ extension attribute */
	375	struct hfsplus_attr_extents {
	376	__be32 record_type;
	377	__be32 reserved;
	378	struct hfsplus_extent extents;
	379	} __packed;
	380
	381	#define HFSPLUS_MAX_INLINE_DATA_SIZE 3802
	382
	383	/* HFS+ attribute inline data */
	384	struct hfsplus_attr_inline_data {
	385	__be32 record_type;
	386	__be32 reserved1;
	387	u8 reserved2[6];
	388	__be16 length;
	389	u8 raw_bytes[HFSPLUS_MAX_INLINE_DATA_SIZE];
	390	} __packed;
	391
	392	/* A data record in the attributes tree */
	393	typedef union {
	394	__be32 record_type;
	395	struct hfsplus_attr_fork_data fork_data;
	396	struct hfsplus_attr_extents extents;
	397	struct hfsplus_attr_inline_data inline_data;
	398	} __packed hfsplus_attr_entry;
	399
1da177e4 LT	400	/* HFS+ generic BTree key */
	401	typedef union {
	402	__be16 key_len;
	403	struct hfsplus_cat_key cat;
	404	struct hfsplus_ext_key ext;
9ed083d8	405	struct hfsplus_attr_key attr;
1da177e4 LT	406	} __packed hfsplus_btree_key;
	407
	408	#endif