[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"

#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

#define udf_file_entry_alloc_offset(inode)\
	(UDF_I(inode)->i_use ?\
		sizeof(struct unallocSpaceEntry) :\
		((UDF_I(inode)->i_efe ?\
			sizeof(struct extendedFileEntry) :\
			sizeof(struct fileEntry)) + UDF_I(inode)->i_lenEAttr))

#define udf_ext0_offset(inode)\
	(UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ?\
		udf_file_entry_alloc_offset(inode) : 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 *, 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(uint8_t *, uint32_t, uint16_t);

/* udftime.c */
extern time_t *udf_stamp_to_time(time_t *, long *, kernel_timestamp);
extern kernel_timestamp *udf_time_to_stamp(kernel_timestamp *, struct timespec);

#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 LT	13	#include "udfend.h"
1da177e4 LT	14
15aebd28 CH	15	#define UDF_PREALLOCATE
	16	#define UDF_DEFAULT_PREALLOC_BLOCKS 8
	17
	18	#undef UDFFS_DEBUG
	19
	20	#ifdef UDFFS_DEBUG
	21	#define udf_debug(f, a...) \
	22	do { \
	23	printk(KERN_DEBUG "UDF-fs DEBUG %s:%d:%s: ", \
	24	__FILE__, __LINE__, __func__); \
	25	printk(f, ##a); \
	26	} while (0)
	27	#else
	28	#define udf_debug(f, a...) /**/
	29	#endif
	30
	31	#define udf_info(f, a...) \
	32	printk(KERN_INFO "UDF-fs INFO " f, ##a);
	33
	34
1da177e4 LT	35	#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
	36	#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
	37
	38	#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
	39	#define UDF_EXTENT_FLAG_MASK 0xC0000000
	40
	41	#define UDF_NAME_PAD 4
	42	#define UDF_NAME_LEN 256
	43	#define UDF_PATH_LEN 1023
	44
	45	#define udf_file_entry_alloc_offset(inode)\
c0b34438	46	(UDF_I(inode)->i_use ?\
1da177e4	47	sizeof(struct unallocSpaceEntry) :\
c0b34438	48	((UDF_I(inode)->i_efe ?\
1da177e4	49	sizeof(struct extendedFileEntry) :\
c0b34438	50	sizeof(struct fileEntry)) + UDF_I(inode)->i_lenEAttr))
1da177e4 LT	51
1da177e4 LT	52	#define udf_ext0_offset(inode)\
c0b34438	53	(UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ?\
1da177e4 LT	54	udf_file_entry_alloc_offset(inode) : 0)
	55
	56	#define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
	57
3f2587bb MS	58	/* computes tag checksum */
	59	u8 udf_tag_checksum(const tag *t);
	60
1da177e4 LT	61	struct dentry;
	62	struct inode;
	63	struct task_struct;
	64	struct buffer_head;
	65	struct super_block;
	66
c5ef1c42	67	extern const struct inode_operations udf_dir_inode_operations;
4b6f5d20	68	extern const struct file_operations udf_dir_operations;
c5ef1c42	69	extern const struct inode_operations udf_file_inode_operations;
4b6f5d20	70	extern const struct file_operations udf_file_operations;
f5e54d6e CH	71	extern const struct address_space_operations udf_aops;
	72	extern const struct address_space_operations udf_adinicb_aops;
	73	extern const struct address_space_operations udf_symlink_aops;
1da177e4	74
cb00ea35	75	struct udf_fileident_bh {
1da177e4 LT	76	struct buffer_head *sbh;
	77	struct buffer_head *ebh;
	78	int soffset;
	79	int eoffset;
	80	};
	81
cb00ea35	82	struct udf_vds_record {
1da177e4 LT	83	uint32_t block;
	84	uint32_t volDescSeqNum;
	85	};
	86
cb00ea35	87	struct generic_desc {
28de7948 CG	88	tag descTag;
28de7948 CG	89	__le32 volDescSeqNum;
1da177e4 LT	90	};
1da177e4 LT	91
cb00ea35	92	struct ustr {
1da177e4	93	uint8_t u_cmpID;
cb00ea35	94	uint8_t u_name[UDF_NAME_LEN - 2];
1da177e4 LT	95	uint8_t u_len;
	96	};
	97
ff116fc8 JK	98	struct extent_position {
	99	struct buffer_head *bh;
	100	uint32_t offset;
	101	kernel_lb_addr block;
	102	};
	103
1da177e4	104	/* super.c */
1da177e4 LT	105	extern void udf_warning(struct super_block , const char , const char *, ...);
	106
	107	/* namei.c */
cb00ea35 CG	108	extern int udf_write_fi(struct inode inode, struct fileIdentDesc ,
	109	struct fileIdentDesc , struct udf_fileident_bh ,
	110	uint8_t , uint8_t );
1da177e4 LT	111
1da177e4 LT	112	/* file.c */
cb00ea35 CG	113	extern int udf_ioctl(struct inode , struct file , unsigned int,
cb00ea35 CG	114	unsigned long);
1da177e4 LT	115
	116	/* inode.c */
	117	extern struct inode udf_iget(struct super_block , kernel_lb_addr);
	118	extern int udf_sync_inode(struct inode *);
	119	extern void udf_expand_file_adinicb(struct inode , int, int );
cb00ea35 CG	120	extern struct buffer_head udf_expand_dir_adinicb(struct inode , int , int );
cb00ea35 CG	121	extern struct buffer_head udf_bread(struct inode , int, int, int *);
1da177e4 LT	122	extern void udf_truncate(struct inode *);
	123	extern void udf_read_inode(struct inode *);
	124	extern void udf_delete_inode(struct inode *);
	125	extern void udf_clear_inode(struct inode *);
	126	extern int udf_write_inode(struct inode *, int);
60448b1d	127	extern long udf_block_map(struct inode *, sector_t);
cb00ea35 CG	128	extern int udf_extend_file(struct inode , struct extent_position ,
	129	kernel_long_ad *, sector_t);
	130	extern int8_t inode_bmap(struct inode , sector_t, struct extent_position ,
	131	kernel_lb_addr , uint32_t , sector_t *);
	132	extern int8_t udf_add_aext(struct inode , struct extent_position ,
	133	kernel_lb_addr, uint32_t, int);
	134	extern int8_t udf_write_aext(struct inode , struct extent_position ,
	135	kernel_lb_addr, uint32_t, int);
	136	extern int8_t udf_delete_aext(struct inode *, struct extent_position,
	137	kernel_lb_addr, uint32_t);
	138	extern int8_t udf_next_aext(struct inode , struct extent_position ,
	139	kernel_lb_addr , uint32_t , int);
	140	extern int8_t udf_current_aext(struct inode , struct extent_position ,
	141	kernel_lb_addr , uint32_t , int);
1da177e4 LT	142
	143	/* misc.c */
	144	extern struct buffer_head udf_tgetblk(struct super_block , int);
	145	extern struct buffer_head udf_tread(struct super_block , int);
cb00ea35 CG	146	extern struct genericFormat udf_add_extendedattr(struct inode , uint32_t,
	147	uint32_t, uint8_t);
	148	extern struct genericFormat udf_get_extendedattr(struct inode , uint32_t,
	149	uint8_t);
	150	extern struct buffer_head udf_read_tagged(struct super_block , uint32_t,
	151	uint32_t, uint16_t *);
	152	extern struct buffer_head udf_read_ptagged(struct super_block ,
	153	kernel_lb_addr, uint32_t,
	154	uint16_t *);
1da177e4 LT	155	extern void udf_update_tag(char *, int);
	156	extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
	157
	158	/* lowlevel.c */
	159	extern unsigned int udf_get_last_session(struct super_block *);
	160	extern unsigned long udf_get_last_block(struct super_block *);
	161
	162	/* partition.c */
cb00ea35 CG	163	extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
	164	uint32_t);
	165	extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
	166	uint32_t);
	167	extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
	168	uint32_t);
	169	extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
	170	uint32_t);
1da177e4 LT	171	extern int udf_relocate_blocks(struct super_block , long, long );
	172
	173	/* unicode.c */
	174	extern int udf_get_filename(struct super_block , uint8_t , uint8_t *, int);
cb00ea35 CG	175	extern int udf_put_filename(struct super_block , const uint8_t , uint8_t *,
cb00ea35 CG	176	int);
1da177e4 LT	177	extern int udf_build_ustr(struct ustr , dstring , int);
	178	extern int udf_CS0toUTF8(struct ustr , struct ustr );
	179
	180	/* ialloc.c */
	181	extern void udf_free_inode(struct inode *);
cb00ea35	182	extern struct inode udf_new_inode(struct inode , int, int *);
1da177e4 LT	183
1da177e4 LT	184	/* truncate.c */
74584ae5	185	extern void udf_truncate_tail_extent(struct inode *);
1da177e4 LT	186	extern void udf_discard_prealloc(struct inode *);
	187	extern void udf_truncate_extents(struct inode *);
	188
	189	/* balloc.c */
cb00ea35 CG	190	extern void udf_free_blocks(struct super_block , struct inode ,
	191	kernel_lb_addr, uint32_t, uint32_t);
	192	extern int udf_prealloc_blocks(struct super_block , struct inode , uint16_t,
	193	uint32_t, uint32_t);
	194	extern int udf_new_block(struct super_block , struct inode , uint16_t,
	195	uint32_t, int *);
1da177e4 LT	196
	197	/* fsync.c */
	198	extern int udf_fsync_file(struct file , struct dentry , int);
	199
	200	/* directory.c */
cb00ea35 CG	201	extern struct fileIdentDesc udf_fileident_read(struct inode , loff_t *,
	202	struct udf_fileident_bh *,
	203	struct fileIdentDesc *,
	204	struct extent_position *,
	205	kernel_lb_addr , uint32_t ,
	206	sector_t *);
	207	extern struct fileIdentDesc udf_get_fileident(void buffer, int bufsize,
	208	int *offset);
1ed16171 MS	209	extern long_ad udf_get_filelongad(uint8_t , int, uint32_t *, int);
1ed16171 MS	210	extern short_ad udf_get_fileshortad(uint8_t , int, uint32_t *, int);
1da177e4 LT	211
	212	/* crc.c */
	213	extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
	214
	215	/* udftime.c */
	216	extern time_t udf_stamp_to_time(time_t , long *, kernel_timestamp);
	217	extern kernel_timestamp udf_time_to_stamp(kernel_timestamp , struct timespec);
	218
cb00ea35	219	#endif /* __UDF_DECL_H */