[net-next-2.6.git] / fs / udf / udfdecl.h

#ifndef __UDF_DECL_H
#define __UDF_DECL_H

#include "ecma_167.h"
#include "osta_udf.h"

#include <linux/fs.h>
#include <linux/types.h>
#include <linux/buffer_head.h>
#include <linux/udf_fs_i.h>

#include "udf_sb.h"
#include "udfend.h"
#include "udf_i.h"

#define UDF_PREALLOCATE
#define UDF_DEFAULT_PREALLOC_BLOCKS	8

#undef UDFFS_DEBUG

#ifdef UDFFS_DEBUG
#define udf_debug(f, a...) \
do { \
	printk(KERN_DEBUG "UDF-fs DEBUG %s:%d:%s: ", \
		__FILE__, __LINE__, __func__); \
	printk(f, ##a); \
} while (0)
#else
#define udf_debug(f, a...) /**/
#endif

#define udf_info(f, a...) \
	printk(KERN_INFO "UDF-fs INFO " f, ##a);


#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )

#define UDF_EXTENT_LENGTH_MASK	0x3FFFFFFF
#define UDF_EXTENT_FLAG_MASK	0xC0000000

#define UDF_NAME_PAD		4
#define UDF_NAME_LEN		256
#define UDF_PATH_LEN		1023

static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
{
	struct udf_inode_info *iinfo = UDF_I(inode);
	if (iinfo->i_use)
		return sizeof(struct unallocSpaceEntry);
	else if (iinfo->i_efe)
		return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
	else
		return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
}

static inline size_t udf_ext0_offset(struct inode *inode)
{
	if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
		return udf_file_entry_alloc_offset(inode);
	else
		return 0;
}

/* computes tag checksum */
u8 udf_tag_checksum(const struct tag *t);

struct dentry;
struct inode;
struct task_struct;
struct buffer_head;
struct super_block;

extern const struct export_operations udf_export_ops;
extern const struct inode_operations udf_dir_inode_operations;
extern const struct file_operations udf_dir_operations;
extern const struct inode_operations udf_file_inode_operations;
extern const struct file_operations udf_file_operations;
extern const struct address_space_operations udf_aops;
extern const struct address_space_operations udf_adinicb_aops;
extern const struct address_space_operations udf_symlink_aops;

struct udf_fileident_bh {
	struct buffer_head *sbh;
	struct buffer_head *ebh;
	int soffset;
	int eoffset;
};

struct udf_vds_record {
	uint32_t block;
	uint32_t volDescSeqNum;
};

struct generic_desc {
	struct tag	descTag;
	__le32		volDescSeqNum;
};

struct ustr {
	uint8_t u_cmpID;
	uint8_t u_name[UDF_NAME_LEN - 2];
	uint8_t u_len;
};

struct extent_position {
	struct buffer_head *bh;
	uint32_t offset;
	struct kernel_lb_addr block;
};

/* super.c */
extern void udf_warning(struct super_block *, const char *, const char *, ...);
static inline void udf_updated_lvid(struct super_block *sb)
{
	struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;

	BUG_ON(!bh);
	WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
		     bh->b_data)->integrityType !=
		     cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
	sb->s_dirt = 1;
	UDF_SB(sb)->s_lvid_dirty = 1;
}

/* namei.c */
extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
			struct fileIdentDesc *, struct udf_fileident_bh *,
			uint8_t *, uint8_t *);

/* file.c */
extern int udf_ioctl(struct inode *, struct file *, unsigned int,
		     unsigned long);

/* inode.c */
extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *);
extern int udf_sync_inode(struct inode *);
extern void udf_expand_file_adinicb(struct inode *, int, int *);
extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
extern void udf_truncate(struct inode *);
extern void udf_read_inode(struct inode *);
extern void udf_delete_inode(struct inode *);
extern void udf_clear_inode(struct inode *);
extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
extern long udf_block_map(struct inode *, sector_t);
extern int udf_extend_file(struct inode *, struct extent_position *,
			   struct kernel_long_ad *, sector_t);
extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
			 struct kernel_lb_addr *, uint32_t *, sector_t *);
extern int8_t udf_add_aext(struct inode *, struct extent_position *,
			   struct kernel_lb_addr *, uint32_t, int);
extern int8_t udf_write_aext(struct inode *, struct extent_position *,
			     struct kernel_lb_addr *, uint32_t, int);
extern int8_t udf_delete_aext(struct inode *, struct extent_position,
			      struct kernel_lb_addr, uint32_t);
extern int8_t udf_next_aext(struct inode *, struct extent_position *,
			    struct kernel_lb_addr *, uint32_t *, int);
extern int8_t udf_current_aext(struct inode *, struct extent_position *,
			       struct kernel_lb_addr *, uint32_t *, int);

/* misc.c */
extern struct buffer_head *udf_tgetblk(struct super_block *, int);
extern struct buffer_head *udf_tread(struct super_block *, int);
extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
						  uint32_t, uint8_t);
extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
						  uint8_t);
extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
					   uint32_t, uint16_t *);
extern struct buffer_head *udf_read_ptagged(struct super_block *,
					    struct kernel_lb_addr *, uint32_t,
					    uint16_t *);
extern void udf_update_tag(char *, int);
extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);

/* lowlevel.c */
extern unsigned int udf_get_last_session(struct super_block *);
extern unsigned long udf_get_last_block(struct super_block *);

/* partition.c */
extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
			       uint32_t);
extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
				      uint32_t);
extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
				      uint32_t);
extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
				      uint32_t);
extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
					  uint32_t);
extern int udf_relocate_blocks(struct super_block *, long, long *);

static inline uint32_t
udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
		  uint32_t offset)
{
	return udf_get_pblock(sb, loc->logicalBlockNum,
			loc->partitionReferenceNum, offset);
}

/* unicode.c */
extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
			    int);
extern int udf_build_ustr(struct ustr *, dstring *, int);
extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);

/* ialloc.c */
extern void udf_free_inode(struct inode *);
extern struct inode *udf_new_inode(struct inode *, int, int *);

/* truncate.c */
extern void udf_truncate_tail_extent(struct inode *);
extern void udf_discard_prealloc(struct inode *);
extern void udf_truncate_extents(struct inode *);

/* balloc.c */
extern void udf_free_blocks(struct super_block *, struct inode *,
			    struct kernel_lb_addr *, uint32_t, uint32_t);
extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
			       uint32_t, uint32_t);
extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
			 uint32_t, int *);

/* directory.c */
extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
						struct udf_fileident_bh *,
						struct fileIdentDesc *,
						struct extent_position *,
						struct kernel_lb_addr *, uint32_t *,
						sector_t *);
extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
					       int *offset);
extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);

/* udftime.c */
extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
						struct timestamp src);
extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);

#endif				/* __UDF_DECL_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef __UDF_DECL_H
	2	#define __UDF_DECL_H
	3
1da177e4 LT	4	#include "ecma_167.h"
	5	#include "osta_udf.h"
	6
	7	#include <linux/fs.h>
1da177e4	8	#include <linux/types.h>
1da177e4	9	#include <linux/buffer_head.h>
15aebd28	10	#include <linux/udf_fs_i.h>
1da177e4	11
15aebd28	12	#include "udf_sb.h"
1da177e4	13	#include "udfend.h"
d652eefb	14	#include "udf_i.h"
1da177e4	15
15aebd28 CH	16	#define UDF_PREALLOCATE
	17	#define UDF_DEFAULT_PREALLOC_BLOCKS 8
	18
e4f3ec06	19	#undef UDFFS_DEBUG
15aebd28 CH	20
	21	#ifdef UDFFS_DEBUG
	22	#define udf_debug(f, a...) \
	23	do { \
	24	printk(KERN_DEBUG "UDF-fs DEBUG %s:%d:%s: ", \
	25	__FILE__, __LINE__, __func__); \
	26	printk(f, ##a); \
	27	} while (0)
	28	#else
	29	#define udf_debug(f, a...) /**/
	30	#endif
	31
	32	#define udf_info(f, a...) \
	33	printk(KERN_INFO "UDF-fs INFO " f, ##a);
	34
	35
1da177e4 LT	36	#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
	37	#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
	38
	39	#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
	40	#define UDF_EXTENT_FLAG_MASK 0xC0000000
	41
	42	#define UDF_NAME_PAD 4
	43	#define UDF_NAME_LEN 256
	44	#define UDF_PATH_LEN 1023
	45
d652eefb	46	static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
	47	{
	48	struct udf_inode_info *iinfo = UDF_I(inode);
	49	if (iinfo->i_use)
	50	return sizeof(struct unallocSpaceEntry);
	51	else if (iinfo->i_efe)
	52	return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
	53	else
	54	return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
	55	}
	56
	57	static inline size_t udf_ext0_offset(struct inode *inode)
	58	{
	59	if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
	60	return udf_file_entry_alloc_offset(inode);
	61	else
	62	return 0;
	63	}
1da177e4	64
3f2587bb	65	/* computes tag checksum */
5ca4e4be	66	u8 udf_tag_checksum(const struct tag *t);
3f2587bb	67
1da177e4 LT	68	struct dentry;
	69	struct inode;
	70	struct task_struct;
	71	struct buffer_head;
	72	struct super_block;
	73
221e583a	74	extern const struct export_operations udf_export_ops;
c5ef1c42	75	extern const struct inode_operations udf_dir_inode_operations;
4b6f5d20	76	extern const struct file_operations udf_dir_operations;
c5ef1c42	77	extern const struct inode_operations udf_file_inode_operations;
4b6f5d20	78	extern const struct file_operations udf_file_operations;
f5e54d6e CH	79	extern const struct address_space_operations udf_aops;
	80	extern const struct address_space_operations udf_adinicb_aops;
	81	extern const struct address_space_operations udf_symlink_aops;
1da177e4	82
cb00ea35	83	struct udf_fileident_bh {
1da177e4 LT	84	struct buffer_head *sbh;
	85	struct buffer_head *ebh;
	86	int soffset;
	87	int eoffset;
	88	};
	89
cb00ea35	90	struct udf_vds_record {
1da177e4 LT	91	uint32_t block;
	92	uint32_t volDescSeqNum;
	93	};
	94
cb00ea35	95	struct generic_desc {
5ca4e4be	96	struct tag descTag;
28de7948	97	__le32 volDescSeqNum;
1da177e4 LT	98	};
1da177e4 LT	99
cb00ea35	100	struct ustr {
1da177e4	101	uint8_t u_cmpID;
cb00ea35	102	uint8_t u_name[UDF_NAME_LEN - 2];
1da177e4 LT	103	uint8_t u_len;
	104	};
	105
ff116fc8 JK	106	struct extent_position {
	107	struct buffer_head *bh;
	108	uint32_t offset;
5ca4e4be	109	struct kernel_lb_addr block;
ff116fc8 JK	110	};
ff116fc8 JK	111
1da177e4	112	/* super.c */
1da177e4	113	extern void udf_warning(struct super_block , const char , const char *, ...);
146bca72 JK	114	static inline void udf_updated_lvid(struct super_block *sb)
	115	{
	116	struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;
	117
	118	BUG_ON(!bh);
	119	WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
	120	bh->b_data)->integrityType !=
	121	cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
	122	sb->s_dirt = 1;
	123	UDF_SB(sb)->s_lvid_dirty = 1;
	124	}
1da177e4 LT	125
1da177e4 LT	126	/* namei.c */
cb00ea35 CG	127	extern int udf_write_fi(struct inode inode, struct fileIdentDesc ,
	128	struct fileIdentDesc , struct udf_fileident_bh ,
	129	uint8_t , uint8_t );
1da177e4 LT	130
1da177e4 LT	131	/* file.c */
cb00ea35 CG	132	extern int udf_ioctl(struct inode , struct file , unsigned int,
cb00ea35 CG	133	unsigned long);
1da177e4 LT	134
1da177e4 LT	135	/* inode.c */
97e961fd	136	extern struct inode udf_iget(struct super_block , struct kernel_lb_addr *);
1da177e4 LT	137	extern int udf_sync_inode(struct inode *);
1da177e4 LT	138	extern void udf_expand_file_adinicb(struct inode , int, int );
cb00ea35 CG	139	extern struct buffer_head udf_expand_dir_adinicb(struct inode , int , int );
cb00ea35 CG	140	extern struct buffer_head udf_bread(struct inode , int, int, int *);
1da177e4 LT	141	extern void udf_truncate(struct inode *);
	142	extern void udf_read_inode(struct inode *);
	143	extern void udf_delete_inode(struct inode *);
	144	extern void udf_clear_inode(struct inode *);
a9185b41	145	extern int udf_write_inode(struct inode , struct writeback_control wbc);
60448b1d	146	extern long udf_block_map(struct inode *, sector_t);
cb00ea35	147	extern int udf_extend_file(struct inode , struct extent_position ,
5ca4e4be	148	struct kernel_long_ad *, sector_t);
cb00ea35	149	extern int8_t inode_bmap(struct inode , sector_t, struct extent_position ,
5ca4e4be	150	struct kernel_lb_addr , uint32_t , sector_t *);
cb00ea35	151	extern int8_t udf_add_aext(struct inode , struct extent_position ,
97e961fd	152	struct kernel_lb_addr *, uint32_t, int);
cb00ea35	153	extern int8_t udf_write_aext(struct inode , struct extent_position ,
97e961fd	154	struct kernel_lb_addr *, uint32_t, int);
cb00ea35	155	extern int8_t udf_delete_aext(struct inode *, struct extent_position,
5ca4e4be	156	struct kernel_lb_addr, uint32_t);
cb00ea35	157	extern int8_t udf_next_aext(struct inode , struct extent_position ,
5ca4e4be	158	struct kernel_lb_addr , uint32_t , int);
cb00ea35	159	extern int8_t udf_current_aext(struct inode , struct extent_position ,
5ca4e4be	160	struct kernel_lb_addr , uint32_t , int);
1da177e4 LT	161
	162	/* misc.c */
	163	extern struct buffer_head udf_tgetblk(struct super_block , int);
	164	extern struct buffer_head udf_tread(struct super_block , int);
cb00ea35 CG	165	extern struct genericFormat udf_add_extendedattr(struct inode , uint32_t,
	166	uint32_t, uint8_t);
	167	extern struct genericFormat udf_get_extendedattr(struct inode , uint32_t,
	168	uint8_t);
	169	extern struct buffer_head udf_read_tagged(struct super_block , uint32_t,
	170	uint32_t, uint16_t *);
	171	extern struct buffer_head udf_read_ptagged(struct super_block ,
97e961fd	172	struct kernel_lb_addr *, uint32_t,
cb00ea35	173	uint16_t *);
1da177e4 LT	174	extern void udf_update_tag(char *, int);
	175	extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
	176
	177	/* lowlevel.c */
	178	extern unsigned int udf_get_last_session(struct super_block *);
	179	extern unsigned long udf_get_last_block(struct super_block *);
	180
	181	/* partition.c */
cb00ea35 CG	182	extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
	183	uint32_t);
	184	extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
	185	uint32_t);
	186	extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
	187	uint32_t);
	188	extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
	189	uint32_t);
bfb257a5 JK	190	extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
bfb257a5 JK	191	uint32_t);
1da177e4 LT	192	extern int udf_relocate_blocks(struct super_block , long, long );
1da177e4 LT	193
97e961fd PE	194	static inline uint32_t
	195	udf_get_lb_pblock(struct super_block sb, struct kernel_lb_addr loc,
	196	uint32_t offset)
	197	{
	198	return udf_get_pblock(sb, loc->logicalBlockNum,
	199	loc->partitionReferenceNum, offset);
	200	}
	201
1da177e4 LT	202	/* unicode.c */
1da177e4 LT	203	extern int udf_get_filename(struct super_block , uint8_t , uint8_t *, int);
cb00ea35 CG	204	extern int udf_put_filename(struct super_block , const uint8_t , uint8_t *,
cb00ea35 CG	205	int);
1da177e4	206	extern int udf_build_ustr(struct ustr , dstring , int);
79cfe0ff	207	extern int udf_CS0toUTF8(struct ustr , const struct ustr );
1da177e4 LT	208
	209	/* ialloc.c */
	210	extern void udf_free_inode(struct inode *);
cb00ea35	211	extern struct inode udf_new_inode(struct inode , int, int *);
1da177e4 LT	212
1da177e4 LT	213	/* truncate.c */
74584ae5	214	extern void udf_truncate_tail_extent(struct inode *);
1da177e4 LT	215	extern void udf_discard_prealloc(struct inode *);
	216	extern void udf_truncate_extents(struct inode *);
	217
	218	/* balloc.c */
cb00ea35	219	extern void udf_free_blocks(struct super_block , struct inode ,
97e961fd	220	struct kernel_lb_addr *, uint32_t, uint32_t);
cb00ea35 CG	221	extern int udf_prealloc_blocks(struct super_block , struct inode , uint16_t,
	222	uint32_t, uint32_t);
	223	extern int udf_new_block(struct super_block , struct inode , uint16_t,
	224	uint32_t, int *);
1da177e4	225
1da177e4	226	/* directory.c */
cb00ea35 CG	227	extern struct fileIdentDesc udf_fileident_read(struct inode , loff_t *,
	228	struct udf_fileident_bh *,
	229	struct fileIdentDesc *,
	230	struct extent_position *,
5ca4e4be	231	struct kernel_lb_addr , uint32_t ,
cb00ea35 CG	232	sector_t *);
	233	extern struct fileIdentDesc udf_get_fileident(void buffer, int bufsize,
	234	int *offset);
5ca4e4be PE	235	extern struct long_ad udf_get_filelongad(uint8_t , int, uint32_t *, int);
5ca4e4be PE	236	extern struct short_ad udf_get_fileshortad(uint8_t , int, uint32_t *, int);
1da177e4	237
1da177e4	238	/* udftime.c */
56774805	239	extern struct timespec udf_disk_stamp_to_time(struct timespec dest,
5ca4e4be PE	240	struct timestamp src);
5ca4e4be PE	241	extern struct timestamp udf_time_to_disk_stamp(struct timestamp dest, struct timespec src);
1da177e4	242
cb00ea35	243	#endif /* __UDF_DECL_H */