diff options
Diffstat (limited to 'fs/hfsplus/hfsplus_raw.h')
| -rw-r--r-- | fs/hfsplus/hfsplus_raw.h | 121 |
1 files changed, 101 insertions, 20 deletions
diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h index 5bad37cfdb2..8298d0985f8 100644 --- a/fs/hfsplus/hfsplus_raw.h +++ b/fs/hfsplus/hfsplus_raw.h @@ -15,15 +15,15 @@ #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_VOLHEAD_SIGX 0x4858 #define HFSPLUS_SUPER_MAGIC 0x482b -#define HFSPLUS_CURRENT_VERSION 4 +#define HFSPLUS_MIN_VERSION 4 +#define HFSPLUS_CURRENT_VERSION 5 #define HFSP_WRAP_MAGIC 0x4244 #define HFSP_WRAP_ATTRIB_SLOCK 0x8000 @@ -36,11 +36,15 @@ #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_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 */ @@ -48,13 +52,23 @@ 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[255]; + hfsplus_unichr unicode[HFSPLUS_MAX_STRLEN]; } __packed; -#define HFSPLUS_MAX_STRLEN 255 +/* + * 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 { @@ -113,7 +127,7 @@ struct hfsplus_vh { __be32 write_count; __be64 encodings_bmp; - u8 finder_info[32]; + u32 finder_info[8]; struct hfsplus_fork_raw alloc_file; struct hfsplus_fork_raw ext_file; @@ -123,11 +137,14 @@ struct hfsplus_vh { } __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_SOFTLOCK (1 << 15) +#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 { @@ -140,10 +157,10 @@ struct hfs_bnode_desc { } __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 +#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 { @@ -159,7 +176,7 @@ struct hfs_btree_header_rec { u16 reserved1; __be32 clump_size; u8 btree_type; - u8 reserved2; + u8 key_type; __be32 attributes; u32 reserved3[16]; } __packed; @@ -171,6 +188,9 @@ struct hfs_btree_header_rec { /* 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 */ @@ -184,6 +204,10 @@ struct hfs_btree_header_rec { #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; @@ -191,6 +215,7 @@ struct hfsplus_cat_key { struct hfsplus_unistr name; } __packed; +#define HFSPLUS_CAT_KEYLEN (sizeof(struct hfsplus_cat_key)) /* Structs from hfs.h */ struct hfsp_point { @@ -237,7 +262,7 @@ struct hfsplus_cat_folder { struct DInfo user_info; struct DXInfo finder_info; __be32 text_encoding; - u32 reserved; + __be32 subfolders; /* Subfolder count in HFSX. Reserved in HFS+. */ } __packed; /* HFS file info (stolen from hfs.h) */ @@ -277,9 +302,13 @@ struct hfsplus_cat_file { struct hfsplus_fork_raw rsrc_fork; } __packed; -/* File attribute bits */ +/* 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 { @@ -314,13 +343,65 @@ struct hfsplus_ext_key { __be32 start_block; } __packed; -#define HFSPLUS_EXT_KEYLEN 12 +#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 |