[deliverable/linux.git] / fs / hfsplus / hfsplus_fs.h

/*
 *  linux/include/linux/hfsplus_fs.h
 *
 * Copyright (C) 1999
 * Brad Boyer (flar@pants.nu)
 * (C) 2003 Ardis Technologies <roman@ardistech.com>
 *
 */

#ifndef _LINUX_HFSPLUS_FS_H
#define _LINUX_HFSPLUS_FS_H

#include <linux/fs.h>
#include <linux/mutex.h>
#include <linux/buffer_head.h>
#include "hfsplus_raw.h"

#define DBG_BNODE_REFS	0x00000001
#define DBG_BNODE_MOD	0x00000002
#define DBG_CAT_MOD	0x00000004
#define DBG_INODE	0x00000008
#define DBG_SUPER	0x00000010
#define DBG_EXTENT	0x00000020
#define DBG_BITMAP	0x00000040

//#define DBG_MASK	(DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD)
//#define DBG_MASK	(DBG_BNODE_MOD|DBG_CAT_MOD|DBG_INODE)
//#define DBG_MASK	(DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT)
#define DBG_MASK	(0)

#define dprint(flg, fmt, args...) \
	if (flg & DBG_MASK) printk(fmt , ## args)

/* Runtime config options */
#define HFSPLUS_DEF_CR_TYPE    0x3F3F3F3F  /* '????' */

#define HFSPLUS_TYPE_DATA 0x00
#define HFSPLUS_TYPE_RSRC 0xFF

typedef int (*btree_keycmp)(const hfsplus_btree_key *, const hfsplus_btree_key *);

#define NODE_HASH_SIZE	256

/* An HFS+ BTree held in memory */
struct hfs_btree {
	struct super_block *sb;
	struct inode *inode;
	btree_keycmp keycmp;

	u32 cnid;
	u32 root;
	u32 leaf_count;
	u32 leaf_head;
	u32 leaf_tail;
	u32 node_count;
	u32 free_nodes;
	u32 attributes;

	unsigned int node_size;
	unsigned int node_size_shift;
	unsigned int max_key_len;
	unsigned int depth;

	//unsigned int map1_size, map_size;
	struct mutex tree_lock;

	unsigned int pages_per_bnode;
	spinlock_t hash_lock;
	struct hfs_bnode *node_hash[NODE_HASH_SIZE];
	int node_hash_cnt;
};

struct page;

/* An HFS+ BTree node in memory */
struct hfs_bnode {
	struct hfs_btree *tree;

	u32 prev;
	u32 this;
	u32 next;
	u32 parent;

	u16 num_recs;
	u8 type;
	u8 height;

	struct hfs_bnode *next_hash;
	unsigned long flags;
	wait_queue_head_t lock_wq;
	atomic_t refcnt;
	unsigned int page_offset;
	struct page *page[0];
};

#define HFS_BNODE_LOCK		0
#define HFS_BNODE_ERROR		1
#define HFS_BNODE_NEW		2
#define HFS_BNODE_DIRTY		3
#define HFS_BNODE_DELETED	4

/*
 * HFS+ superblock info (built from Volume Header on disk)
 */

struct hfsplus_vh;
struct hfs_btree;

struct hfsplus_sb_info {
	struct hfsplus_vh *s_vhdr;
	struct hfsplus_vh *s_backup_vhdr;
	struct hfs_btree *ext_tree;
	struct hfs_btree *cat_tree;
	struct hfs_btree *attr_tree;
	struct inode *alloc_file;
	struct inode *hidden_dir;
	struct nls_table *nls;

	/* Runtime variables */
	u32 blockoffset;
	sector_t part_start;
	sector_t sect_count;
	int fs_shift;

	/* immutable data from the volume header */
	u32 alloc_blksz;
	int alloc_blksz_shift;
	u32 total_blocks;
	u32 data_clump_blocks, rsrc_clump_blocks;

	/* mutable data from the volume header, protected by alloc_mutex */
	u32 free_blocks;
	struct mutex alloc_mutex;

	/* mutable data from the volume header, protected by vh_mutex */
	u32 next_cnid;
	u32 file_count;
	u32 folder_count;
	struct mutex vh_mutex;

	/* Config options */
	u32 creator;
	u32 type;

	umode_t umask;
	uid_t uid;
	gid_t gid;

	int part, session;

	unsigned long flags;
};

#define HFSPLUS_SB_WRITEBACKUP	0
#define HFSPLUS_SB_NODECOMPOSE	1
#define HFSPLUS_SB_FORCE	2
#define HFSPLUS_SB_HFSX		3
#define HFSPLUS_SB_CASEFOLD	4
#define HFSPLUS_SB_NOBARRIER	5

static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
{
	return sb->s_fs_info;
}


struct hfsplus_inode_info {
	atomic_t opencnt;

	/*
	 * Extent allocation information, protected by extents_lock.
	 */
	u32 first_blocks;
	u32 clump_blocks;
	u32 alloc_blocks;
	u32 cached_start;
	u32 cached_blocks;
	hfsplus_extent_rec first_extents;
	hfsplus_extent_rec cached_extents;
	unsigned int extent_state;
	struct mutex extents_lock;

	/*
	 * Immutable data.
	 */
	struct inode *rsrc_inode;
	__be32 create_date;

	/*
	 * Protected by sbi->vh_mutex.
	 */
	u32 linkid;

	/*
	 * Accessed using atomic bitops.
	 */
	unsigned long flags;

	/*
	 * Protected by i_mutex.
	 */
	sector_t fs_blocks;
	u8 userflags;		/* BSD user file flags */
	struct list_head open_dir_list;
	loff_t phys_size;

	struct inode vfs_inode;
};

#define HFSPLUS_EXT_DIRTY	0x0001
#define HFSPLUS_EXT_NEW		0x0002

#define HFSPLUS_I_RSRC		0	/* represents a resource fork */
#define HFSPLUS_I_CAT_DIRTY	1	/* has changes in the catalog tree */
#define HFSPLUS_I_EXT_DIRTY	2	/* has changes in the extent tree */
#define HFSPLUS_I_ALLOC_DIRTY	3	/* has changes in the allocation file */

#define HFSPLUS_IS_RSRC(inode) \
	test_bit(HFSPLUS_I_RSRC, &HFSPLUS_I(inode)->flags)

static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
{
	return list_entry(inode, struct hfsplus_inode_info, vfs_inode);
}

/*
 * Mark an inode dirty, and also mark the btree in which the
 * specific type of metadata is stored.
 * For data or metadata that gets written back by into the catalog btree
 * by hfsplus_write_inode a plain mark_inode_dirty call is enough.
 */
static inline void hfsplus_mark_inode_dirty(struct inode *inode,
		unsigned int flag)
{
	set_bit(flag, &HFSPLUS_I(inode)->flags);
	mark_inode_dirty(inode);
}

struct hfs_find_data {
	/* filled by caller */
	hfsplus_btree_key *search_key;
	hfsplus_btree_key *key;
	/* filled by find */
	struct hfs_btree *tree;
	struct hfs_bnode *bnode;
	/* filled by findrec */
	int record;
	int keyoffset, keylength;
	int entryoffset, entrylength;
};

struct hfsplus_readdir_data {
	struct list_head list;
	struct file *file;
	struct hfsplus_cat_key key;
};

#define hfs_btree_open hfsplus_btree_open
#define hfs_btree_close hfsplus_btree_close
#define hfs_btree_write hfsplus_btree_write
#define hfs_bmap_alloc hfsplus_bmap_alloc
#define hfs_bmap_free hfsplus_bmap_free
#define hfs_bnode_read hfsplus_bnode_read
#define hfs_bnode_read_u16 hfsplus_bnode_read_u16
#define hfs_bnode_read_u8 hfsplus_bnode_read_u8
#define hfs_bnode_read_key hfsplus_bnode_read_key
#define hfs_bnode_write hfsplus_bnode_write
#define hfs_bnode_write_u16 hfsplus_bnode_write_u16
#define hfs_bnode_clear hfsplus_bnode_clear
#define hfs_bnode_copy hfsplus_bnode_copy
#define hfs_bnode_move hfsplus_bnode_move
#define hfs_bnode_dump hfsplus_bnode_dump
#define hfs_bnode_unlink hfsplus_bnode_unlink
#define hfs_bnode_findhash hfsplus_bnode_findhash
#define hfs_bnode_find hfsplus_bnode_find
#define hfs_bnode_unhash hfsplus_bnode_unhash
#define hfs_bnode_free hfsplus_bnode_free
#define hfs_bnode_create hfsplus_bnode_create
#define hfs_bnode_get hfsplus_bnode_get
#define hfs_bnode_put hfsplus_bnode_put
#define hfs_brec_lenoff hfsplus_brec_lenoff
#define hfs_brec_keylen hfsplus_brec_keylen
#define hfs_brec_insert hfsplus_brec_insert
#define hfs_brec_remove hfsplus_brec_remove
#define hfs_find_init hfsplus_find_init
#define hfs_find_exit hfsplus_find_exit
#define __hfs_brec_find __hplusfs_brec_find
#define hfs_brec_find hfsplus_brec_find
#define hfs_brec_read hfsplus_brec_read
#define hfs_brec_goto hfsplus_brec_goto
#define hfs_part_find hfsplus_part_find

/*
 * definitions for ext2 flag ioctls (linux really needs a generic
 * interface for this).
 */

/* ext2 ioctls (EXT2_IOC_GETFLAGS and EXT2_IOC_SETFLAGS) to support
 * chattr/lsattr */
#define HFSPLUS_IOC_EXT2_GETFLAGS	FS_IOC_GETFLAGS
#define HFSPLUS_IOC_EXT2_SETFLAGS	FS_IOC_SETFLAGS


/*
 * Functions in any *.c used in other files
 */

/* bitmap.c */
int hfsplus_block_allocate(struct super_block *, u32, u32, u32 *);
int hfsplus_block_free(struct super_block *, u32, u32);

/* btree.c */
struct hfs_btree *hfs_btree_open(struct super_block *, u32);
void hfs_btree_close(struct hfs_btree *);
void hfs_btree_write(struct hfs_btree *);
struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *);
void hfs_bmap_free(struct hfs_bnode *);

/* bnode.c */
void hfs_bnode_read(struct hfs_bnode *, void *, int, int);
u16 hfs_bnode_read_u16(struct hfs_bnode *, int);
u8 hfs_bnode_read_u8(struct hfs_bnode *, int);
void hfs_bnode_read_key(struct hfs_bnode *, void *, int);
void hfs_bnode_write(struct hfs_bnode *, void *, int, int);
void hfs_bnode_write_u16(struct hfs_bnode *, int, u16);
void hfs_bnode_clear(struct hfs_bnode *, int, int);
void hfs_bnode_copy(struct hfs_bnode *, int,
		    struct hfs_bnode *, int, int);
void hfs_bnode_move(struct hfs_bnode *, int, int, int);
void hfs_bnode_dump(struct hfs_bnode *);
void hfs_bnode_unlink(struct hfs_bnode *);
struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *, u32);
struct hfs_bnode *hfs_bnode_find(struct hfs_btree *, u32);
void hfs_bnode_unhash(struct hfs_bnode *);
void hfs_bnode_free(struct hfs_bnode *);
struct hfs_bnode *hfs_bnode_create(struct hfs_btree *, u32);
void hfs_bnode_get(struct hfs_bnode *);
void hfs_bnode_put(struct hfs_bnode *);

/* brec.c */
u16 hfs_brec_lenoff(struct hfs_bnode *, u16, u16 *);
u16 hfs_brec_keylen(struct hfs_bnode *, u16);
int hfs_brec_insert(struct hfs_find_data *, void *, int);
int hfs_brec_remove(struct hfs_find_data *);

/* bfind.c */
int hfs_find_init(struct hfs_btree *, struct hfs_find_data *);
void hfs_find_exit(struct hfs_find_data *);
int __hfs_brec_find(struct hfs_bnode *, struct hfs_find_data *);
int hfs_brec_find(struct hfs_find_data *);
int hfs_brec_read(struct hfs_find_data *, void *, int);
int hfs_brec_goto(struct hfs_find_data *, int);

/* catalog.c */
int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *, u32, struct qstr *);
int hfsplus_find_cat(struct super_block *, u32, struct hfs_find_data *);
int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);
int hfsplus_delete_cat(u32, struct inode *, struct qstr *);
int hfsplus_rename_cat(u32, struct inode *, struct qstr *,
		       struct inode *, struct qstr *);
void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms);

/* dir.c */
extern const struct inode_operations hfsplus_dir_inode_operations;
extern const struct file_operations hfsplus_dir_operations;

/* extents.c */
int hfsplus_ext_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);
void hfsplus_ext_write_extent(struct inode *);
int hfsplus_get_block(struct inode *, sector_t, struct buffer_head *, int);
int hfsplus_free_fork(struct super_block *, u32, struct hfsplus_fork_raw *, int);
int hfsplus_file_extend(struct inode *);
void hfsplus_file_truncate(struct inode *);

/* inode.c */
extern const struct address_space_operations hfsplus_aops;
extern const struct address_space_operations hfsplus_btree_aops;
extern const struct dentry_operations hfsplus_dentry_operations;

void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);
void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);
int hfsplus_cat_read_inode(struct inode *, struct hfs_find_data *);
int hfsplus_cat_write_inode(struct inode *);
struct inode *hfsplus_new_inode(struct super_block *, int);
void hfsplus_delete_inode(struct inode *);
int hfsplus_file_fsync(struct file *file, int datasync);

/* ioctl.c */
long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
int hfsplus_setxattr(struct dentry *dentry, const char *name,
		     const void *value, size_t size, int flags);
ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
			 void *value, size_t size);
ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size);

/* options.c */
int hfsplus_parse_options(char *, struct hfsplus_sb_info *);
int hfsplus_parse_options_remount(char *input, int *force);
void hfsplus_fill_defaults(struct hfsplus_sb_info *);
int hfsplus_show_options(struct seq_file *, struct vfsmount *);

/* super.c */
struct inode *hfsplus_iget(struct super_block *, unsigned long);
int hfsplus_sync_fs(struct super_block *sb, int wait);

/* tables.c */
extern u16 hfsplus_case_fold_table[];
extern u16 hfsplus_decompose_table[];
extern u16 hfsplus_compose_table[];

/* unicode.c */
int hfsplus_strcasecmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *);
int hfsplus_strcmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *);
int hfsplus_uni2asc(struct super_block *, const struct hfsplus_unistr *, char *, int *);
int hfsplus_asc2uni(struct super_block *, struct hfsplus_unistr *, const char *, int);
int hfsplus_hash_dentry(struct dentry *dentry, struct qstr *str);
int hfsplus_compare_dentry(struct dentry *dentry, struct qstr *s1, struct qstr *s2);

/* wrapper.c */
int hfsplus_read_wrapper(struct super_block *);
int hfs_part_find(struct super_block *, sector_t *, sector_t *);
int hfsplus_submit_bio(struct block_device *bdev, sector_t sector,
		void *data, int rw);

/* time macros */
#define __hfsp_mt2ut(t)		(be32_to_cpu(t) - 2082844800U)
#define __hfsp_ut2mt(t)		(cpu_to_be32(t + 2082844800U))

/* compatibility */
#define hfsp_mt2ut(t)		(struct timespec){ .tv_sec = __hfsp_mt2ut(t) }
#define hfsp_ut2mt(t)		__hfsp_ut2mt((t).tv_sec)
#define hfsp_now2mt()		__hfsp_ut2mt(get_seconds())

#endif
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/include/linux/hfsplus_fs.h
	3	*
	4	* Copyright (C) 1999
	5	* Brad Boyer (flar@pants.nu)
	6	* (C) 2003 Ardis Technologies <roman@ardistech.com>
	7	*
	8	*/
	9
	10	#ifndef _LINUX_HFSPLUS_FS_H
	11	#define _LINUX_HFSPLUS_FS_H
	12
	13	#include <linux/fs.h>
895c23f8	14	#include <linux/mutex.h>
1da177e4 LT	15	#include <linux/buffer_head.h>
	16	#include "hfsplus_raw.h"
	17
	18	#define DBG_BNODE_REFS 0x00000001
	19	#define DBG_BNODE_MOD 0x00000002
	20	#define DBG_CAT_MOD 0x00000004
	21	#define DBG_INODE 0x00000008
	22	#define DBG_SUPER 0x00000010
	23	#define DBG_EXTENT 0x00000020
	24	#define DBG_BITMAP 0x00000040
	25
	26	//#define DBG_MASK (DBG_EXTENT\|DBG_INODE\|DBG_BNODE_MOD)
	27	//#define DBG_MASK (DBG_BNODE_MOD\|DBG_CAT_MOD\|DBG_INODE)
	28	//#define DBG_MASK (DBG_CAT_MOD\|DBG_BNODE_REFS\|DBG_INODE\|DBG_EXTENT)
	29	#define DBG_MASK (0)
	30
	31	#define dprint(flg, fmt, args...) \
	32	if (flg & DBG_MASK) printk(fmt , ## args)
	33
	34	/* Runtime config options */
	35	#define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */
	36
	37	#define HFSPLUS_TYPE_DATA 0x00
	38	#define HFSPLUS_TYPE_RSRC 0xFF
	39
2179d372	40	typedef int (btree_keycmp)(const hfsplus_btree_key , const hfsplus_btree_key *);
1da177e4 LT	41
	42	#define NODE_HASH_SIZE 256
	43
	44	/* An HFS+ BTree held in memory */
	45	struct hfs_btree {
	46	struct super_block *sb;
	47	struct inode *inode;
	48	btree_keycmp keycmp;
	49
	50	u32 cnid;
	51	u32 root;
	52	u32 leaf_count;
	53	u32 leaf_head;
	54	u32 leaf_tail;
	55	u32 node_count;
	56	u32 free_nodes;
	57	u32 attributes;
	58
	59	unsigned int node_size;
	60	unsigned int node_size_shift;
	61	unsigned int max_key_len;
	62	unsigned int depth;
	63
	64	//unsigned int map1_size, map_size;
467c3d9c	65	struct mutex tree_lock;
1da177e4 LT	66
	67	unsigned int pages_per_bnode;
	68	spinlock_t hash_lock;
	69	struct hfs_bnode *node_hash[NODE_HASH_SIZE];
	70	int node_hash_cnt;
	71	};
	72
	73	struct page;
	74
	75	/* An HFS+ BTree node in memory */
	76	struct hfs_bnode {
	77	struct hfs_btree *tree;
	78
	79	u32 prev;
	80	u32 this;
	81	u32 next;
	82	u32 parent;
	83
	84	u16 num_recs;
	85	u8 type;
	86	u8 height;
	87
	88	struct hfs_bnode *next_hash;
	89	unsigned long flags;
	90	wait_queue_head_t lock_wq;
	91	atomic_t refcnt;
	92	unsigned int page_offset;
	93	struct page *page[0];
	94	};
	95
	96	#define HFS_BNODE_LOCK 0
	97	#define HFS_BNODE_ERROR 1
	98	#define HFS_BNODE_NEW 2
	99	#define HFS_BNODE_DIRTY 3
	100	#define HFS_BNODE_DELETED 4
	101
	102	/*
	103	* HFS+ superblock info (built from Volume Header on disk)
	104	*/
	105
	106	struct hfsplus_vh;
	107	struct hfs_btree;
	108
	109	struct hfsplus_sb_info {
1da177e4	110	struct hfsplus_vh *s_vhdr;
52399b17	111	struct hfsplus_vh *s_backup_vhdr;
1da177e4 LT	112	struct hfs_btree *ext_tree;
	113	struct hfs_btree *cat_tree;
	114	struct hfs_btree *attr_tree;
	115	struct inode *alloc_file;
	116	struct inode *hidden_dir;
	117	struct nls_table *nls;
	118
	119	/* Runtime variables */
	120	u32 blockoffset;
52399b17 CH	121	sector_t part_start;
52399b17 CH	122	sector_t sect_count;
1da177e4 LT	123	int fs_shift;
1da177e4 LT	124
7ac9fb9c	125	/* immutable data from the volume header */
1da177e4 LT	126	u32 alloc_blksz;
	127	int alloc_blksz_shift;
	128	u32 total_blocks;
7ac9fb9c CH	129	u32 data_clump_blocks, rsrc_clump_blocks;
	130
	131	/* mutable data from the volume header, protected by alloc_mutex */
1da177e4	132	u32 free_blocks;
7ac9fb9c CH	133	struct mutex alloc_mutex;
	134
	135	/* mutable data from the volume header, protected by vh_mutex */
1da177e4 LT	136	u32 next_cnid;
	137	u32 file_count;
	138	u32 folder_count;
7ac9fb9c	139	struct mutex vh_mutex;
1da177e4 LT	140
	141	/* Config options */
	142	u32 creator;
	143	u32 type;
	144
	145	umode_t umask;
	146	uid_t uid;
	147	gid_t gid;
	148
	149	int part, session;
	150
	151	unsigned long flags;
1da177e4 LT	152	};
1da177e4 LT	153
84adede3 CH	154	#define HFSPLUS_SB_WRITEBACKUP 0
	155	#define HFSPLUS_SB_NODECOMPOSE 1
	156	#define HFSPLUS_SB_FORCE 2
	157	#define HFSPLUS_SB_HFSX 3
	158	#define HFSPLUS_SB_CASEFOLD 4
34a2d313	159	#define HFSPLUS_SB_NOBARRIER 5
1da177e4	160
e3494705 CH	161	static inline struct hfsplus_sb_info HFSPLUS_SB(struct super_block sb)
	162	{
	163	return sb->s_fs_info;
	164	}
	165
1da177e4 LT	166
1da177e4 LT	167	struct hfsplus_inode_info {
1da177e4 LT	168	atomic_t opencnt;
1da177e4 LT	169
7fcc99f4 CH	170	/*
	171	* Extent allocation information, protected by extents_lock.
	172	*/
	173	u32 first_blocks;
	174	u32 clump_blocks;
	175	u32 alloc_blocks;
	176	u32 cached_start;
	177	u32 cached_blocks;
	178	hfsplus_extent_rec first_extents;
	179	hfsplus_extent_rec cached_extents;
b33b7921	180	unsigned int extent_state;
7fcc99f4	181	struct mutex extents_lock;
1da177e4	182
7fcc99f4 CH	183	/*
	184	* Immutable data.
	185	*/
	186	struct inode *rsrc_inode;
9a4cad95	187	__be32 create_date;
f6089ff8 CH	188
	189	/*
	190	* Protected by sbi->vh_mutex.
	191	*/
	192	u32 linkid;
1da177e4	193
b33b7921 CH	194	/*
	195	* Accessed using atomic bitops.
	196	*/
	197	unsigned long flags;
	198
7fcc99f4 CH	199	/*
	200	* Protected by i_mutex.
	201	*/
	202	sector_t fs_blocks;
722c55d1	203	u8 userflags; /* BSD user file flags */
1da177e4 LT	204	struct list_head open_dir_list;
1da177e4 LT	205	loff_t phys_size;
7fcc99f4	206
1da177e4 LT	207	struct inode vfs_inode;
	208	};
	209
b33b7921 CH	210	#define HFSPLUS_EXT_DIRTY 0x0001
	211	#define HFSPLUS_EXT_NEW 0x0002
	212
	213	#define HFSPLUS_I_RSRC 0 /* represents a resource fork */
e3494705 CH	214	#define HFSPLUS_I_CAT_DIRTY 1 /* has changes in the catalog tree */
	215	#define HFSPLUS_I_EXT_DIRTY 2 /* has changes in the extent tree */
	216	#define HFSPLUS_I_ALLOC_DIRTY 3 /* has changes in the allocation file */
1da177e4	217
b33b7921 CH	218	#define HFSPLUS_IS_RSRC(inode) \
b33b7921 CH	219	test_bit(HFSPLUS_I_RSRC, &HFSPLUS_I(inode)->flags)
1da177e4	220
e3494705 CH	221	static inline struct hfsplus_inode_info HFSPLUS_I(struct inode inode)
	222	{
	223	return list_entry(inode, struct hfsplus_inode_info, vfs_inode);
	224	}
	225
	226	/*
	227	* Mark an inode dirty, and also mark the btree in which the
	228	* specific type of metadata is stored.
	229	* For data or metadata that gets written back by into the catalog btree
	230	* by hfsplus_write_inode a plain mark_inode_dirty call is enough.
	231	*/
	232	static inline void hfsplus_mark_inode_dirty(struct inode *inode,
	233	unsigned int flag)
	234	{
	235	set_bit(flag, &HFSPLUS_I(inode)->flags);
	236	mark_inode_dirty(inode);
	237	}
	238
1da177e4 LT	239	struct hfs_find_data {
	240	/* filled by caller */
	241	hfsplus_btree_key *search_key;
	242	hfsplus_btree_key *key;
	243	/* filled by find */
	244	struct hfs_btree *tree;
	245	struct hfs_bnode *bnode;
	246	/* filled by findrec */
	247	int record;
	248	int keyoffset, keylength;
	249	int entryoffset, entrylength;
	250	};
	251
	252	struct hfsplus_readdir_data {
	253	struct list_head list;
	254	struct file *file;
	255	struct hfsplus_cat_key key;
	256	};
	257
	258	#define hfs_btree_open hfsplus_btree_open
	259	#define hfs_btree_close hfsplus_btree_close
	260	#define hfs_btree_write hfsplus_btree_write
	261	#define hfs_bmap_alloc hfsplus_bmap_alloc
	262	#define hfs_bmap_free hfsplus_bmap_free
	263	#define hfs_bnode_read hfsplus_bnode_read
	264	#define hfs_bnode_read_u16 hfsplus_bnode_read_u16
	265	#define hfs_bnode_read_u8 hfsplus_bnode_read_u8
	266	#define hfs_bnode_read_key hfsplus_bnode_read_key
	267	#define hfs_bnode_write hfsplus_bnode_write
	268	#define hfs_bnode_write_u16 hfsplus_bnode_write_u16
	269	#define hfs_bnode_clear hfsplus_bnode_clear
	270	#define hfs_bnode_copy hfsplus_bnode_copy
	271	#define hfs_bnode_move hfsplus_bnode_move
	272	#define hfs_bnode_dump hfsplus_bnode_dump
	273	#define hfs_bnode_unlink hfsplus_bnode_unlink
	274	#define hfs_bnode_findhash hfsplus_bnode_findhash
	275	#define hfs_bnode_find hfsplus_bnode_find
	276	#define hfs_bnode_unhash hfsplus_bnode_unhash
	277	#define hfs_bnode_free hfsplus_bnode_free
	278	#define hfs_bnode_create hfsplus_bnode_create
	279	#define hfs_bnode_get hfsplus_bnode_get
	280	#define hfs_bnode_put hfsplus_bnode_put
	281	#define hfs_brec_lenoff hfsplus_brec_lenoff
	282	#define hfs_brec_keylen hfsplus_brec_keylen
	283	#define hfs_brec_insert hfsplus_brec_insert
	284	#define hfs_brec_remove hfsplus_brec_remove
	285	#define hfs_find_init hfsplus_find_init
	286	#define hfs_find_exit hfsplus_find_exit
	287	#define __hfs_brec_find __hplusfs_brec_find
	288	#define hfs_brec_find hfsplus_brec_find
	289	#define hfs_brec_read hfsplus_brec_read
	290	#define hfs_brec_goto hfsplus_brec_goto
	291	#define hfs_part_find hfsplus_part_find
	292
	293	/*
	294	* definitions for ext2 flag ioctls (linux really needs a generic
	295	* interface for this).
	296	*/
	297
	298	/* ext2 ioctls (EXT2_IOC_GETFLAGS and EXT2_IOC_SETFLAGS) to support
	299	* chattr/lsattr */
36695673 DH	300	#define HFSPLUS_IOC_EXT2_GETFLAGS FS_IOC_GETFLAGS
36695673 DH	301	#define HFSPLUS_IOC_EXT2_SETFLAGS FS_IOC_SETFLAGS
1da177e4 LT	302
	303
	304	/*
	305	* Functions in any *.c used in other files
	306	*/
	307
	308	/* bitmap.c */
	309	int hfsplus_block_allocate(struct super_block , u32, u32, u32 );
	310	int hfsplus_block_free(struct super_block *, u32, u32);
	311
	312	/* btree.c */
	313	struct hfs_btree hfs_btree_open(struct super_block , u32);
	314	void hfs_btree_close(struct hfs_btree *);
	315	void hfs_btree_write(struct hfs_btree *);
	316	struct hfs_bnode hfs_bmap_alloc(struct hfs_btree );
	317	void hfs_bmap_free(struct hfs_bnode *);
	318
	319	/* bnode.c */
	320	void hfs_bnode_read(struct hfs_bnode , void , int, int);
	321	u16 hfs_bnode_read_u16(struct hfs_bnode *, int);
	322	u8 hfs_bnode_read_u8(struct hfs_bnode *, int);
	323	void hfs_bnode_read_key(struct hfs_bnode , void , int);
	324	void hfs_bnode_write(struct hfs_bnode , void , int, int);
	325	void hfs_bnode_write_u16(struct hfs_bnode *, int, u16);
	326	void hfs_bnode_clear(struct hfs_bnode *, int, int);
	327	void hfs_bnode_copy(struct hfs_bnode *, int,
	328	struct hfs_bnode *, int, int);
	329	void hfs_bnode_move(struct hfs_bnode *, int, int, int);
	330	void hfs_bnode_dump(struct hfs_bnode *);
	331	void hfs_bnode_unlink(struct hfs_bnode *);
	332	struct hfs_bnode hfs_bnode_findhash(struct hfs_btree , u32);
	333	struct hfs_bnode hfs_bnode_find(struct hfs_btree , u32);
	334	void hfs_bnode_unhash(struct hfs_bnode *);
	335	void hfs_bnode_free(struct hfs_bnode *);
	336	struct hfs_bnode hfs_bnode_create(struct hfs_btree , u32);
	337	void hfs_bnode_get(struct hfs_bnode *);
	338	void hfs_bnode_put(struct hfs_bnode *);
	339
	340	/* brec.c */
	341	u16 hfs_brec_lenoff(struct hfs_bnode , u16, u16 );
	342	u16 hfs_brec_keylen(struct hfs_bnode *, u16);
	343	int hfs_brec_insert(struct hfs_find_data , void , int);
	344	int hfs_brec_remove(struct hfs_find_data *);
	345
	346	/* bfind.c */
	347	int hfs_find_init(struct hfs_btree , struct hfs_find_data );
	348	void hfs_find_exit(struct hfs_find_data *);
	349	int __hfs_brec_find(struct hfs_bnode , struct hfs_find_data );
	350	int hfs_brec_find(struct hfs_find_data *);
	351	int hfs_brec_read(struct hfs_find_data , void , int);
	352	int hfs_brec_goto(struct hfs_find_data *, int);
	353
	354	/* catalog.c */
2179d372 DE	355	int hfsplus_cat_case_cmp_key(const hfsplus_btree_key , const hfsplus_btree_key );
2179d372 DE	356	int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key , const hfsplus_btree_key );
1da177e4 LT	357	void hfsplus_cat_build_key(struct super_block sb, hfsplus_btree_key , u32, struct qstr *);
	358	int hfsplus_find_cat(struct super_block , u32, struct hfs_find_data );
	359	int hfsplus_create_cat(u32, struct inode , struct qstr , struct inode *);
	360	int hfsplus_delete_cat(u32, struct inode , struct qstr );
	361	int hfsplus_rename_cat(u32, struct inode , struct qstr ,
	362	struct inode , struct qstr );
90e61690	363	void hfsplus_cat_set_perms(struct inode inode, struct hfsplus_perm perms);
1da177e4	364
4b0a8da7 AB	365	/* dir.c */
	366	extern const struct inode_operations hfsplus_dir_inode_operations;
	367	extern const struct file_operations hfsplus_dir_operations;
	368
1da177e4	369	/* extents.c */
2179d372	370	int hfsplus_ext_cmp_key(const hfsplus_btree_key , const hfsplus_btree_key );
1da177e4 LT	371	void hfsplus_ext_write_extent(struct inode *);
	372	int hfsplus_get_block(struct inode , sector_t, struct buffer_head , int);
	373	int hfsplus_free_fork(struct super_block , u32, struct hfsplus_fork_raw , int);
	374	int hfsplus_file_extend(struct inode *);
	375	void hfsplus_file_truncate(struct inode *);
	376
	377	/* inode.c */
f5e54d6e CH	378	extern const struct address_space_operations hfsplus_aops;
f5e54d6e CH	379	extern const struct address_space_operations hfsplus_btree_aops;
e16404ed	380	extern const struct dentry_operations hfsplus_dentry_operations;
1da177e4 LT	381
	382	void hfsplus_inode_read_fork(struct inode , struct hfsplus_fork_raw );
	383	void hfsplus_inode_write_fork(struct inode , struct hfsplus_fork_raw );
	384	int hfsplus_cat_read_inode(struct inode , struct hfs_find_data );
	385	int hfsplus_cat_write_inode(struct inode *);
	386	struct inode hfsplus_new_inode(struct super_block , int);
	387	void hfsplus_delete_inode(struct inode *);
eb29d66d	388	int hfsplus_file_fsync(struct file *file, int datasync);
1da177e4 LT	389
1da177e4 LT	390	/* ioctl.c */
7cc4bcc6	391	long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
1da177e4 LT	392	int hfsplus_setxattr(struct dentry dentry, const char name,
	393	const void *value, size_t size, int flags);
	394	ssize_t hfsplus_getxattr(struct dentry dentry, const char name,
	395	void *value, size_t size);
	396	ssize_t hfsplus_listxattr(struct dentry dentry, char buffer, size_t size);
	397
	398	/* options.c */
717dd80e	399	int hfsplus_parse_options(char , struct hfsplus_sb_info );
6f80dfe5	400	int hfsplus_parse_options_remount(char input, int force);
717dd80e RZ	401	void hfsplus_fill_defaults(struct hfsplus_sb_info *);
717dd80e RZ	402	int hfsplus_show_options(struct seq_file , struct vfsmount );
1da177e4	403
63525391 DH	404	/* super.c */
63525391 DH	405	struct inode hfsplus_iget(struct super_block , unsigned long);
b5fc510c	406	int hfsplus_sync_fs(struct super_block *sb, int wait);
63525391	407
1da177e4 LT	408	/* tables.c */
	409	extern u16 hfsplus_case_fold_table[];
	410	extern u16 hfsplus_decompose_table[];
	411	extern u16 hfsplus_compose_table[];
	412
	413	/* unicode.c */
2179d372 DE	414	int hfsplus_strcasecmp(const struct hfsplus_unistr , const struct hfsplus_unistr );
2179d372 DE	415	int hfsplus_strcmp(const struct hfsplus_unistr , const struct hfsplus_unistr );
1da177e4 LT	416	int hfsplus_uni2asc(struct super_block , const struct hfsplus_unistr , char , int );
1da177e4 LT	417	int hfsplus_asc2uni(struct super_block , struct hfsplus_unistr , const char *, int);
d45bce8f DG	418	int hfsplus_hash_dentry(struct dentry dentry, struct qstr str);
d45bce8f DG	419	int hfsplus_compare_dentry(struct dentry dentry, struct qstr s1, struct qstr *s2);
1da177e4 LT	420
	421	/* wrapper.c */
	422	int hfsplus_read_wrapper(struct super_block *);
1da177e4	423	int hfs_part_find(struct super_block , sector_t , sector_t *);
52399b17 CH	424	int hfsplus_submit_bio(struct block_device *bdev, sector_t sector,
52399b17 CH	425	void *data, int rw);
1da177e4	426
1da177e4 LT	427	/* time macros */
	428	#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U)
	429	#define __hfsp_ut2mt(t) (cpu_to_be32(t + 2082844800U))
	430
	431	/* compatibility */
	432	#define hfsp_mt2ut(t) (struct timespec){ .tv_sec = __hfsp_mt2ut(t) }
	433	#define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
	434	#define hfsp_now2mt() __hfsp_ut2mt(get_seconds())
	435
1da177e4	436	#endif