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408 lines
9.5 KiB
408 lines
9.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* linux/include/linux/hfsplus_raw.h |
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* |
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* Copyright (C) 1999 |
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* Brad Boyer ([email protected]) |
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* (C) 2003 Ardis Technologies <[email protected]> |
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* |
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* Format of structures on disk |
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* Information taken from Apple Technote #1150 (HFS Plus Volume Format) |
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* |
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*/ |
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#ifndef _LINUX_HFSPLUS_RAW_H |
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#define _LINUX_HFSPLUS_RAW_H |
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#include <linux/types.h> |
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/* Some constants */ |
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#define HFSPLUS_SECTOR_SIZE 512 |
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#define HFSPLUS_SECTOR_SHIFT 9 |
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#define HFSPLUS_VOLHEAD_SECTOR 2 |
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#define HFSPLUS_VOLHEAD_SIG 0x482b |
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#define HFSPLUS_VOLHEAD_SIGX 0x4858 |
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#define HFSPLUS_SUPER_MAGIC 0x482b |
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#define HFSPLUS_MIN_VERSION 4 |
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#define HFSPLUS_CURRENT_VERSION 5 |
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#define HFSP_WRAP_MAGIC 0x4244 |
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#define HFSP_WRAP_ATTRIB_SLOCK 0x8000 |
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#define HFSP_WRAP_ATTRIB_SPARED 0x0200 |
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#define HFSP_WRAPOFF_SIG 0x00 |
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#define HFSP_WRAPOFF_ATTRIB 0x0A |
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#define HFSP_WRAPOFF_ABLKSIZE 0x14 |
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#define HFSP_WRAPOFF_ABLKSTART 0x1C |
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#define HFSP_WRAPOFF_EMBEDSIG 0x7C |
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#define HFSP_WRAPOFF_EMBEDEXT 0x7E |
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#define HFSP_HIDDENDIR_NAME \ |
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"\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80\xe2\x90\x80HFS+ Private Data" |
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#define HFSP_HARDLINK_TYPE 0x686c6e6b /* 'hlnk' */ |
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#define HFSP_HFSPLUS_CREATOR 0x6866732b /* 'hfs+' */ |
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#define HFSP_SYMLINK_TYPE 0x736c6e6b /* 'slnk' */ |
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#define HFSP_SYMLINK_CREATOR 0x72686170 /* 'rhap' */ |
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#define HFSP_MOUNT_VERSION 0x482b4c78 /* 'H+Lx' */ |
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/* Structures used on disk */ |
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typedef __be32 hfsplus_cnid; |
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typedef __be16 hfsplus_unichr; |
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#define HFSPLUS_MAX_STRLEN 255 |
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#define HFSPLUS_ATTR_MAX_STRLEN 127 |
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/* A "string" as used in filenames, etc. */ |
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struct hfsplus_unistr { |
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__be16 length; |
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hfsplus_unichr unicode[HFSPLUS_MAX_STRLEN]; |
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} __packed; |
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/* |
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* A "string" is used in attributes file |
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* for name of extended attribute |
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*/ |
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struct hfsplus_attr_unistr { |
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__be16 length; |
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hfsplus_unichr unicode[HFSPLUS_ATTR_MAX_STRLEN]; |
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} __packed; |
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/* POSIX permissions */ |
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struct hfsplus_perm { |
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__be32 owner; |
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__be32 group; |
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u8 rootflags; |
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u8 userflags; |
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__be16 mode; |
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__be32 dev; |
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} __packed; |
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#define HFSPLUS_FLG_NODUMP 0x01 |
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#define HFSPLUS_FLG_IMMUTABLE 0x02 |
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#define HFSPLUS_FLG_APPEND 0x04 |
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/* A single contiguous area of a file */ |
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struct hfsplus_extent { |
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__be32 start_block; |
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__be32 block_count; |
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} __packed; |
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typedef struct hfsplus_extent hfsplus_extent_rec[8]; |
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/* Information for a "Fork" in a file */ |
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struct hfsplus_fork_raw { |
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__be64 total_size; |
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__be32 clump_size; |
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__be32 total_blocks; |
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hfsplus_extent_rec extents; |
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} __packed; |
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/* HFS+ Volume Header */ |
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struct hfsplus_vh { |
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__be16 signature; |
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__be16 version; |
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__be32 attributes; |
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__be32 last_mount_vers; |
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u32 reserved; |
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__be32 create_date; |
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__be32 modify_date; |
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__be32 backup_date; |
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__be32 checked_date; |
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__be32 file_count; |
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__be32 folder_count; |
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__be32 blocksize; |
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__be32 total_blocks; |
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__be32 free_blocks; |
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__be32 next_alloc; |
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__be32 rsrc_clump_sz; |
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__be32 data_clump_sz; |
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hfsplus_cnid next_cnid; |
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__be32 write_count; |
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__be64 encodings_bmp; |
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u32 finder_info[8]; |
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struct hfsplus_fork_raw alloc_file; |
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struct hfsplus_fork_raw ext_file; |
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struct hfsplus_fork_raw cat_file; |
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struct hfsplus_fork_raw attr_file; |
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struct hfsplus_fork_raw start_file; |
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} __packed; |
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/* HFS+ volume attributes */ |
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#define HFSPLUS_VOL_UNMNT (1 << 8) |
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#define HFSPLUS_VOL_SPARE_BLK (1 << 9) |
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#define HFSPLUS_VOL_NOCACHE (1 << 10) |
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#define HFSPLUS_VOL_INCNSTNT (1 << 11) |
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#define HFSPLUS_VOL_NODEID_REUSED (1 << 12) |
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#define HFSPLUS_VOL_JOURNALED (1 << 13) |
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#define HFSPLUS_VOL_SOFTLOCK (1 << 15) |
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#define HFSPLUS_VOL_UNUSED_NODE_FIX (1 << 31) |
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/* HFS+ BTree node descriptor */ |
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struct hfs_bnode_desc { |
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__be32 next; |
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__be32 prev; |
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s8 type; |
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u8 height; |
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__be16 num_recs; |
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u16 reserved; |
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} __packed; |
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/* HFS+ BTree node types */ |
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#define HFS_NODE_INDEX 0x00 /* An internal (index) node */ |
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#define HFS_NODE_HEADER 0x01 /* The tree header node (node 0) */ |
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#define HFS_NODE_MAP 0x02 /* Holds part of the bitmap of used nodes */ |
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#define HFS_NODE_LEAF 0xFF /* A leaf (ndNHeight==1) node */ |
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/* HFS+ BTree header */ |
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struct hfs_btree_header_rec { |
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__be16 depth; |
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__be32 root; |
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__be32 leaf_count; |
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__be32 leaf_head; |
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__be32 leaf_tail; |
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__be16 node_size; |
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__be16 max_key_len; |
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__be32 node_count; |
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__be32 free_nodes; |
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u16 reserved1; |
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__be32 clump_size; |
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u8 btree_type; |
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u8 key_type; |
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__be32 attributes; |
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u32 reserved3[16]; |
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} __packed; |
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/* BTree attributes */ |
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#define HFS_TREE_BIGKEYS 2 |
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#define HFS_TREE_VARIDXKEYS 4 |
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/* HFS+ BTree misc info */ |
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#define HFSPLUS_TREE_HEAD 0 |
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#define HFSPLUS_NODE_MXSZ 32768 |
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#define HFSPLUS_ATTR_TREE_NODE_SIZE 8192 |
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#define HFSPLUS_BTREE_HDR_NODE_RECS_COUNT 3 |
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#define HFSPLUS_BTREE_HDR_USER_BYTES 128 |
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/* Some special File ID numbers (stolen from hfs.h) */ |
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#define HFSPLUS_POR_CNID 1 /* Parent Of the Root */ |
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#define HFSPLUS_ROOT_CNID 2 /* ROOT directory */ |
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#define HFSPLUS_EXT_CNID 3 /* EXTents B-tree */ |
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#define HFSPLUS_CAT_CNID 4 /* CATalog B-tree */ |
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#define HFSPLUS_BAD_CNID 5 /* BAD blocks file */ |
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#define HFSPLUS_ALLOC_CNID 6 /* ALLOCation file */ |
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#define HFSPLUS_START_CNID 7 /* STARTup file */ |
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#define HFSPLUS_ATTR_CNID 8 /* ATTRibutes file */ |
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#define HFSPLUS_EXCH_CNID 15 /* ExchangeFiles temp id */ |
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#define HFSPLUS_FIRSTUSER_CNID 16 /* first available user id */ |
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/* btree key type */ |
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#define HFSPLUS_KEY_CASEFOLDING 0xCF /* case-insensitive */ |
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#define HFSPLUS_KEY_BINARY 0xBC /* case-sensitive */ |
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/* HFS+ catalog entry key */ |
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struct hfsplus_cat_key { |
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__be16 key_len; |
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hfsplus_cnid parent; |
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struct hfsplus_unistr name; |
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} __packed; |
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#define HFSPLUS_CAT_KEYLEN (sizeof(struct hfsplus_cat_key)) |
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/* Structs from hfs.h */ |
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struct hfsp_point { |
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__be16 v; |
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__be16 h; |
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} __packed; |
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struct hfsp_rect { |
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__be16 top; |
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__be16 left; |
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__be16 bottom; |
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__be16 right; |
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} __packed; |
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/* HFS directory info (stolen from hfs.h */ |
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struct DInfo { |
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struct hfsp_rect frRect; |
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__be16 frFlags; |
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struct hfsp_point frLocation; |
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__be16 frView; |
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} __packed; |
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struct DXInfo { |
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struct hfsp_point frScroll; |
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__be32 frOpenChain; |
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__be16 frUnused; |
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__be16 frComment; |
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__be32 frPutAway; |
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} __packed; |
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/* HFS+ folder data (part of an hfsplus_cat_entry) */ |
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struct hfsplus_cat_folder { |
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__be16 type; |
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__be16 flags; |
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__be32 valence; |
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hfsplus_cnid id; |
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__be32 create_date; |
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__be32 content_mod_date; |
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__be32 attribute_mod_date; |
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__be32 access_date; |
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__be32 backup_date; |
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struct hfsplus_perm permissions; |
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struct DInfo user_info; |
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struct DXInfo finder_info; |
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__be32 text_encoding; |
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__be32 subfolders; /* Subfolder count in HFSX. Reserved in HFS+. */ |
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} __packed; |
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/* HFS file info (stolen from hfs.h) */ |
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struct FInfo { |
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__be32 fdType; |
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__be32 fdCreator; |
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__be16 fdFlags; |
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struct hfsp_point fdLocation; |
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__be16 fdFldr; |
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} __packed; |
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struct FXInfo { |
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__be16 fdIconID; |
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u8 fdUnused[8]; |
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__be16 fdComment; |
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__be32 fdPutAway; |
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} __packed; |
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/* HFS+ file data (part of a cat_entry) */ |
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struct hfsplus_cat_file { |
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__be16 type; |
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__be16 flags; |
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u32 reserved1; |
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hfsplus_cnid id; |
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__be32 create_date; |
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__be32 content_mod_date; |
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__be32 attribute_mod_date; |
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__be32 access_date; |
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__be32 backup_date; |
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struct hfsplus_perm permissions; |
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struct FInfo user_info; |
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struct FXInfo finder_info; |
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__be32 text_encoding; |
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u32 reserved2; |
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struct hfsplus_fork_raw data_fork; |
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struct hfsplus_fork_raw rsrc_fork; |
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} __packed; |
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/* File and folder flag bits */ |
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#define HFSPLUS_FILE_LOCKED 0x0001 |
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#define HFSPLUS_FILE_THREAD_EXISTS 0x0002 |
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#define HFSPLUS_XATTR_EXISTS 0x0004 |
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#define HFSPLUS_ACL_EXISTS 0x0008 |
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#define HFSPLUS_HAS_FOLDER_COUNT 0x0010 /* Folder has subfolder count |
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* (HFSX only) */ |
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/* HFS+ catalog thread (part of a cat_entry) */ |
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struct hfsplus_cat_thread { |
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__be16 type; |
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s16 reserved; |
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hfsplus_cnid parentID; |
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struct hfsplus_unistr nodeName; |
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} __packed; |
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#define HFSPLUS_MIN_THREAD_SZ 10 |
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/* A data record in the catalog tree */ |
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typedef union { |
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__be16 type; |
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struct hfsplus_cat_folder folder; |
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struct hfsplus_cat_file file; |
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struct hfsplus_cat_thread thread; |
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} __packed hfsplus_cat_entry; |
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/* HFS+ catalog entry type */ |
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#define HFSPLUS_FOLDER 0x0001 |
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#define HFSPLUS_FILE 0x0002 |
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#define HFSPLUS_FOLDER_THREAD 0x0003 |
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#define HFSPLUS_FILE_THREAD 0x0004 |
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/* HFS+ extents tree key */ |
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struct hfsplus_ext_key { |
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__be16 key_len; |
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u8 fork_type; |
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u8 pad; |
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hfsplus_cnid cnid; |
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__be32 start_block; |
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} __packed; |
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#define HFSPLUS_EXT_KEYLEN sizeof(struct hfsplus_ext_key) |
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#define HFSPLUS_XATTR_FINDER_INFO_NAME "com.apple.FinderInfo" |
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#define HFSPLUS_XATTR_ACL_NAME "com.apple.system.Security" |
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#define HFSPLUS_ATTR_INLINE_DATA 0x10 |
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#define HFSPLUS_ATTR_FORK_DATA 0x20 |
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#define HFSPLUS_ATTR_EXTENTS 0x30 |
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/* HFS+ attributes tree key */ |
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struct hfsplus_attr_key { |
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__be16 key_len; |
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__be16 pad; |
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hfsplus_cnid cnid; |
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__be32 start_block; |
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struct hfsplus_attr_unistr key_name; |
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} __packed; |
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#define HFSPLUS_ATTR_KEYLEN sizeof(struct hfsplus_attr_key) |
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/* HFS+ fork data attribute */ |
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struct hfsplus_attr_fork_data { |
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__be32 record_type; |
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__be32 reserved; |
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struct hfsplus_fork_raw the_fork; |
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} __packed; |
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/* HFS+ extension attribute */ |
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struct hfsplus_attr_extents { |
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__be32 record_type; |
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__be32 reserved; |
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struct hfsplus_extent extents; |
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} __packed; |
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#define HFSPLUS_MAX_INLINE_DATA_SIZE 3802 |
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/* HFS+ attribute inline data */ |
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struct hfsplus_attr_inline_data { |
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__be32 record_type; |
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__be32 reserved1; |
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u8 reserved2[6]; |
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__be16 length; |
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u8 raw_bytes[HFSPLUS_MAX_INLINE_DATA_SIZE]; |
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} __packed; |
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/* A data record in the attributes tree */ |
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typedef union { |
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__be32 record_type; |
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struct hfsplus_attr_fork_data fork_data; |
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struct hfsplus_attr_extents extents; |
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struct hfsplus_attr_inline_data inline_data; |
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} __packed hfsplus_attr_entry; |
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/* HFS+ generic BTree key */ |
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typedef union { |
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__be16 key_len; |
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struct hfsplus_cat_key cat; |
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struct hfsplus_ext_key ext; |
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struct hfsplus_attr_key attr; |
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} __packed hfsplus_btree_key; |
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#endif
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