[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;
}

#define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))

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

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

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 {
	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;
	kernel_lb_addr block;
};

/* super.c */
extern void udf_warning(struct super_block *, const char *, const char *, ...);

/* 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 *, 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 *, int);
extern long udf_block_map(struct inode *, sector_t);
extern int udf_extend_file(struct inode *, struct extent_position *,
			   kernel_long_ad *, sector_t);
extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
			 kernel_lb_addr *, uint32_t *, sector_t *);
extern int8_t udf_add_aext(struct inode *, struct extent_position *,
			   kernel_lb_addr, uint32_t, int);
extern int8_t udf_write_aext(struct inode *, struct extent_position *,
			     kernel_lb_addr, uint32_t, int);
extern int8_t udf_delete_aext(struct inode *, struct extent_position,
			      kernel_lb_addr, uint32_t);
extern int8_t udf_next_aext(struct inode *, struct extent_position *,
			    kernel_lb_addr *, uint32_t *, int);
extern int8_t udf_current_aext(struct inode *, struct extent_position *,
			       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 *,
					    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 int udf_relocate_blocks(struct super_block *, long, long *);

/* 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 *,
			    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 *);

/* fsync.c */
extern int udf_fsync_file(struct file *, struct dentry *, int);

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

/* crc.c */
extern uint16_t udf_crc(const uint8_t *, uint32_t, uint16_t);

/* udftime.c */
extern struct timespec *udf_stamp_to_time(struct timespec *dest, kernel_timestamp src);
extern kernel_timestamp *udf_time_to_stamp(kernel_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
	19	#undef UDFFS_DEBUG
	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 LT	64
	65	#define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
	66
3f2587bb MS	67	/* computes tag checksum */
	68	u8 udf_tag_checksum(const tag *t);
	69
1da177e4 LT	70	struct dentry;
	71	struct inode;
	72	struct task_struct;
	73	struct buffer_head;
	74	struct super_block;
	75
c5ef1c42	76	extern const struct inode_operations udf_dir_inode_operations;
4b6f5d20	77	extern const struct file_operations udf_dir_operations;
c5ef1c42	78	extern const struct inode_operations udf_file_inode_operations;
4b6f5d20	79	extern const struct file_operations udf_file_operations;
f5e54d6e CH	80	extern const struct address_space_operations udf_aops;
	81	extern const struct address_space_operations udf_adinicb_aops;
	82	extern const struct address_space_operations udf_symlink_aops;
1da177e4	83
cb00ea35	84	struct udf_fileident_bh {
1da177e4 LT	85	struct buffer_head *sbh;
	86	struct buffer_head *ebh;
	87	int soffset;
	88	int eoffset;
	89	};
	90
cb00ea35	91	struct udf_vds_record {
1da177e4 LT	92	uint32_t block;
	93	uint32_t volDescSeqNum;
	94	};
	95
cb00ea35	96	struct generic_desc {
28de7948 CG	97	tag descTag;
28de7948 CG	98	__le32 volDescSeqNum;
1da177e4 LT	99	};
1da177e4 LT	100
cb00ea35	101	struct ustr {
1da177e4	102	uint8_t u_cmpID;
cb00ea35	103	uint8_t u_name[UDF_NAME_LEN - 2];
1da177e4 LT	104	uint8_t u_len;
	105	};
	106
ff116fc8 JK	107	struct extent_position {
	108	struct buffer_head *bh;
	109	uint32_t offset;
	110	kernel_lb_addr block;
	111	};
	112
1da177e4	113	/* super.c */
1da177e4 LT	114	extern void udf_warning(struct super_block , const char , const char *, ...);
	115
	116	/* namei.c */
cb00ea35 CG	117	extern int udf_write_fi(struct inode inode, struct fileIdentDesc ,
	118	struct fileIdentDesc , struct udf_fileident_bh ,
	119	uint8_t , uint8_t );
1da177e4 LT	120
1da177e4 LT	121	/* file.c */
cb00ea35 CG	122	extern int udf_ioctl(struct inode , struct file , unsigned int,
cb00ea35 CG	123	unsigned long);
1da177e4 LT	124
	125	/* inode.c */
	126	extern struct inode udf_iget(struct super_block , kernel_lb_addr);
	127	extern int udf_sync_inode(struct inode *);
	128	extern void udf_expand_file_adinicb(struct inode , int, int );
cb00ea35 CG	129	extern struct buffer_head udf_expand_dir_adinicb(struct inode , int , int );
cb00ea35 CG	130	extern struct buffer_head udf_bread(struct inode , int, int, int *);
1da177e4 LT	131	extern void udf_truncate(struct inode *);
	132	extern void udf_read_inode(struct inode *);
	133	extern void udf_delete_inode(struct inode *);
	134	extern void udf_clear_inode(struct inode *);
	135	extern int udf_write_inode(struct inode *, int);
60448b1d	136	extern long udf_block_map(struct inode *, sector_t);
cb00ea35 CG	137	extern int udf_extend_file(struct inode , struct extent_position ,
	138	kernel_long_ad *, sector_t);
	139	extern int8_t inode_bmap(struct inode , sector_t, struct extent_position ,
	140	kernel_lb_addr , uint32_t , sector_t *);
	141	extern int8_t udf_add_aext(struct inode , struct extent_position ,
	142	kernel_lb_addr, uint32_t, int);
	143	extern int8_t udf_write_aext(struct inode , struct extent_position ,
	144	kernel_lb_addr, uint32_t, int);
	145	extern int8_t udf_delete_aext(struct inode *, struct extent_position,
	146	kernel_lb_addr, uint32_t);
	147	extern int8_t udf_next_aext(struct inode , struct extent_position ,
	148	kernel_lb_addr , uint32_t , int);
	149	extern int8_t udf_current_aext(struct inode , struct extent_position ,
	150	kernel_lb_addr , uint32_t , int);
1da177e4 LT	151
	152	/* misc.c */
	153	extern struct buffer_head udf_tgetblk(struct super_block , int);
	154	extern struct buffer_head udf_tread(struct super_block , int);
cb00ea35 CG	155	extern struct genericFormat udf_add_extendedattr(struct inode , uint32_t,
	156	uint32_t, uint8_t);
	157	extern struct genericFormat udf_get_extendedattr(struct inode , uint32_t,
	158	uint8_t);
	159	extern struct buffer_head udf_read_tagged(struct super_block , uint32_t,
	160	uint32_t, uint16_t *);
	161	extern struct buffer_head udf_read_ptagged(struct super_block ,
	162	kernel_lb_addr, uint32_t,
	163	uint16_t *);
1da177e4 LT	164	extern void udf_update_tag(char *, int);
	165	extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
	166
	167	/* lowlevel.c */
	168	extern unsigned int udf_get_last_session(struct super_block *);
	169	extern unsigned long udf_get_last_block(struct super_block *);
	170
	171	/* partition.c */
cb00ea35 CG	172	extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
	173	uint32_t);
	174	extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
	175	uint32_t);
	176	extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
	177	uint32_t);
	178	extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
	179	uint32_t);
1da177e4 LT	180	extern int udf_relocate_blocks(struct super_block , long, long );
	181
	182	/* unicode.c */
	183	extern int udf_get_filename(struct super_block , uint8_t , uint8_t *, int);
cb00ea35 CG	184	extern int udf_put_filename(struct super_block , const uint8_t , uint8_t *,
cb00ea35 CG	185	int);
1da177e4	186	extern int udf_build_ustr(struct ustr , dstring , int);
79cfe0ff	187	extern int udf_CS0toUTF8(struct ustr , const struct ustr );
1da177e4 LT	188
	189	/* ialloc.c */
	190	extern void udf_free_inode(struct inode *);
cb00ea35	191	extern struct inode udf_new_inode(struct inode , int, int *);
1da177e4 LT	192
1da177e4 LT	193	/* truncate.c */
74584ae5	194	extern void udf_truncate_tail_extent(struct inode *);
1da177e4 LT	195	extern void udf_discard_prealloc(struct inode *);
	196	extern void udf_truncate_extents(struct inode *);
	197
	198	/* balloc.c */
cb00ea35 CG	199	extern void udf_free_blocks(struct super_block , struct inode ,
	200	kernel_lb_addr, uint32_t, uint32_t);
	201	extern int udf_prealloc_blocks(struct super_block , struct inode , uint16_t,
	202	uint32_t, uint32_t);
	203	extern int udf_new_block(struct super_block , struct inode , uint16_t,
	204	uint32_t, int *);
1da177e4 LT	205
	206	/* fsync.c */
	207	extern int udf_fsync_file(struct file , struct dentry , int);
	208
	209	/* directory.c */
cb00ea35 CG	210	extern struct fileIdentDesc udf_fileident_read(struct inode , loff_t *,
	211	struct udf_fileident_bh *,
	212	struct fileIdentDesc *,
	213	struct extent_position *,
	214	kernel_lb_addr , uint32_t ,
	215	sector_t *);
	216	extern struct fileIdentDesc udf_get_fileident(void buffer, int bufsize,
	217	int *offset);
1ed16171 MS	218	extern long_ad udf_get_filelongad(uint8_t , int, uint32_t *, int);
1ed16171 MS	219	extern short_ad udf_get_fileshortad(uint8_t , int, uint32_t *, int);
1da177e4 LT	220
1da177e4 LT	221	/* crc.c */
c8ed837d	222	extern uint16_t udf_crc(const uint8_t *, uint32_t, uint16_t);
1da177e4 LT	223
1da177e4 LT	224	/* udftime.c */
cbf5676a	225	extern struct timespec udf_stamp_to_time(struct timespec dest, kernel_timestamp src);
cbf5676a	226	extern kernel_timestamp udf_time_to_stamp(kernel_timestamp dest, struct timespec src);
1da177e4	227
cb00ea35	228	#endif /* __UDF_DECL_H */