[linux-2.6-block.git] / fs / udf / udfdecl.h

#ifndef __UDF_DECL_H
#define __UDF_DECL_H

#include <linux/udf_fs.h>
#include "ecma_167.h"
#include "osta_udf.h"

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

#include "udfend.h"

#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_error(struct super_block *, const char *, const char *, ...);
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
	4	#include <linux/udf_fs.h>
	5	#include "ecma_167.h"
	6	#include "osta_udf.h"
	7
	8	#include <linux/fs.h>
1da177e4 LT	9	#include <linux/types.h>
	10	#include <linux/udf_fs_i.h>
	11	#include <linux/udf_fs_sb.h>
	12	#include <linux/buffer_head.h>
	13
	14	#include "udfend.h"
	15
	16	#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
	17	#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
	18
	19	#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
	20	#define UDF_EXTENT_FLAG_MASK 0xC0000000
	21
	22	#define UDF_NAME_PAD 4
	23	#define UDF_NAME_LEN 256
	24	#define UDF_PATH_LEN 1023
	25
	26	#define udf_file_entry_alloc_offset(inode)\
c0b34438	27	(UDF_I(inode)->i_use ?\
1da177e4	28	sizeof(struct unallocSpaceEntry) :\
c0b34438	29	((UDF_I(inode)->i_efe ?\
1da177e4	30	sizeof(struct extendedFileEntry) :\
c0b34438	31	sizeof(struct fileEntry)) + UDF_I(inode)->i_lenEAttr))
1da177e4 LT	32
1da177e4 LT	33	#define udf_ext0_offset(inode)\
c0b34438	34	(UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB ?\
1da177e4 LT	35	udf_file_entry_alloc_offset(inode) : 0)
	36
	37	#define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
	38
3f2587bb MS	39	/* computes tag checksum */
	40	u8 udf_tag_checksum(const tag *t);
	41
1da177e4 LT	42	struct dentry;
	43	struct inode;
	44	struct task_struct;
	45	struct buffer_head;
	46	struct super_block;
	47
c5ef1c42	48	extern const struct inode_operations udf_dir_inode_operations;
4b6f5d20	49	extern const struct file_operations udf_dir_operations;
c5ef1c42	50	extern const struct inode_operations udf_file_inode_operations;
4b6f5d20	51	extern const struct file_operations udf_file_operations;
f5e54d6e CH	52	extern const struct address_space_operations udf_aops;
	53	extern const struct address_space_operations udf_adinicb_aops;
	54	extern const struct address_space_operations udf_symlink_aops;
1da177e4	55
cb00ea35	56	struct udf_fileident_bh {
1da177e4 LT	57	struct buffer_head *sbh;
	58	struct buffer_head *ebh;
	59	int soffset;
	60	int eoffset;
	61	};
	62
cb00ea35	63	struct udf_vds_record {
1da177e4 LT	64	uint32_t block;
	65	uint32_t volDescSeqNum;
	66	};
	67
cb00ea35	68	struct generic_desc {
28de7948 CG	69	tag descTag;
28de7948 CG	70	__le32 volDescSeqNum;
1da177e4 LT	71	};
1da177e4 LT	72
cb00ea35	73	struct ustr {
1da177e4	74	uint8_t u_cmpID;
cb00ea35	75	uint8_t u_name[UDF_NAME_LEN - 2];
1da177e4 LT	76	uint8_t u_len;
	77	};
	78
ff116fc8 JK	79	struct extent_position {
	80	struct buffer_head *bh;
	81	uint32_t offset;
	82	kernel_lb_addr block;
	83	};
	84
1da177e4 LT	85	/* super.c */
	86	extern void udf_error(struct super_block , const char , const char *, ...);
	87	extern void udf_warning(struct super_block , const char , const char *, ...);
	88
	89	/* namei.c */
cb00ea35 CG	90	extern int udf_write_fi(struct inode inode, struct fileIdentDesc ,
	91	struct fileIdentDesc , struct udf_fileident_bh ,
	92	uint8_t , uint8_t );
1da177e4 LT	93
1da177e4 LT	94	/* file.c */
cb00ea35 CG	95	extern int udf_ioctl(struct inode , struct file , unsigned int,
cb00ea35 CG	96	unsigned long);
1da177e4 LT	97
	98	/* inode.c */
	99	extern struct inode udf_iget(struct super_block , kernel_lb_addr);
	100	extern int udf_sync_inode(struct inode *);
	101	extern void udf_expand_file_adinicb(struct inode , int, int );
cb00ea35 CG	102	extern struct buffer_head udf_expand_dir_adinicb(struct inode , int , int );
cb00ea35 CG	103	extern struct buffer_head udf_bread(struct inode , int, int, int *);
1da177e4 LT	104	extern void udf_truncate(struct inode *);
	105	extern void udf_read_inode(struct inode *);
	106	extern void udf_delete_inode(struct inode *);
	107	extern void udf_clear_inode(struct inode *);
	108	extern int udf_write_inode(struct inode *, int);
60448b1d	109	extern long udf_block_map(struct inode *, sector_t);
cb00ea35 CG	110	extern int udf_extend_file(struct inode , struct extent_position ,
	111	kernel_long_ad *, sector_t);
	112	extern int8_t inode_bmap(struct inode , sector_t, struct extent_position ,
	113	kernel_lb_addr , uint32_t , sector_t *);
	114	extern int8_t udf_add_aext(struct inode , struct extent_position ,
	115	kernel_lb_addr, uint32_t, int);
	116	extern int8_t udf_write_aext(struct inode , struct extent_position ,
	117	kernel_lb_addr, uint32_t, int);
	118	extern int8_t udf_delete_aext(struct inode *, struct extent_position,
	119	kernel_lb_addr, uint32_t);
	120	extern int8_t udf_next_aext(struct inode , struct extent_position ,
	121	kernel_lb_addr , uint32_t , int);
	122	extern int8_t udf_current_aext(struct inode , struct extent_position ,
	123	kernel_lb_addr , uint32_t , int);
1da177e4 LT	124
	125	/* misc.c */
	126	extern struct buffer_head udf_tgetblk(struct super_block , int);
	127	extern struct buffer_head udf_tread(struct super_block , int);
cb00ea35 CG	128	extern struct genericFormat udf_add_extendedattr(struct inode , uint32_t,
	129	uint32_t, uint8_t);
	130	extern struct genericFormat udf_get_extendedattr(struct inode , uint32_t,
	131	uint8_t);
	132	extern struct buffer_head udf_read_tagged(struct super_block , uint32_t,
	133	uint32_t, uint16_t *);
	134	extern struct buffer_head udf_read_ptagged(struct super_block ,
	135	kernel_lb_addr, uint32_t,
	136	uint16_t *);
1da177e4 LT	137	extern void udf_update_tag(char *, int);
	138	extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
	139
	140	/* lowlevel.c */
	141	extern unsigned int udf_get_last_session(struct super_block *);
	142	extern unsigned long udf_get_last_block(struct super_block *);
	143
	144	/* partition.c */
cb00ea35 CG	145	extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
	146	uint32_t);
	147	extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
	148	uint32_t);
	149	extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
	150	uint32_t);
	151	extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
	152	uint32_t);
1da177e4 LT	153	extern int udf_relocate_blocks(struct super_block , long, long );
	154
	155	/* unicode.c */
	156	extern int udf_get_filename(struct super_block , uint8_t , uint8_t *, int);
cb00ea35 CG	157	extern int udf_put_filename(struct super_block , const uint8_t , uint8_t *,
cb00ea35 CG	158	int);
1da177e4 LT	159	extern int udf_build_ustr(struct ustr , dstring , int);
	160	extern int udf_CS0toUTF8(struct ustr , struct ustr );
	161
	162	/* ialloc.c */
	163	extern void udf_free_inode(struct inode *);
cb00ea35	164	extern struct inode udf_new_inode(struct inode , int, int *);
1da177e4 LT	165
1da177e4 LT	166	/* truncate.c */
74584ae5	167	extern void udf_truncate_tail_extent(struct inode *);
1da177e4 LT	168	extern void udf_discard_prealloc(struct inode *);
	169	extern void udf_truncate_extents(struct inode *);
	170
	171	/* balloc.c */
cb00ea35 CG	172	extern void udf_free_blocks(struct super_block , struct inode ,
	173	kernel_lb_addr, uint32_t, uint32_t);
	174	extern int udf_prealloc_blocks(struct super_block , struct inode , uint16_t,
	175	uint32_t, uint32_t);
	176	extern int udf_new_block(struct super_block , struct inode , uint16_t,
	177	uint32_t, int *);
1da177e4 LT	178
	179	/* fsync.c */
	180	extern int udf_fsync_file(struct file , struct dentry , int);
	181
	182	/* directory.c */
cb00ea35 CG	183	extern struct fileIdentDesc udf_fileident_read(struct inode , loff_t *,
	184	struct udf_fileident_bh *,
	185	struct fileIdentDesc *,
	186	struct extent_position *,
	187	kernel_lb_addr , uint32_t ,
	188	sector_t *);
	189	extern struct fileIdentDesc udf_get_fileident(void buffer, int bufsize,
	190	int *offset);
1ed16171 MS	191	extern long_ad udf_get_filelongad(uint8_t , int, uint32_t *, int);
1ed16171 MS	192	extern short_ad udf_get_fileshortad(uint8_t , int, uint32_t *, int);
1da177e4 LT	193
	194	/* crc.c */
	195	extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
	196
	197	/* udftime.c */
	198	extern time_t udf_stamp_to_time(time_t , long *, kernel_timestamp);
	199	extern kernel_timestamp udf_time_to_stamp(kernel_timestamp , struct timespec);
	200
cb00ea35	201	#endif /* __UDF_DECL_H */