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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/hfsplus/hfsplus_raw.h
downloadlinux-linaro-stable-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'fs/hfsplus/hfsplus_raw.h')
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diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h
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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 */
+#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)
+
+/* 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