[mirror_ubuntu-artful-kernel.git] / fs / udf / udfdecl.h

#ifndef __UDF_DECL_H
#define __UDF_DECL_H

#define pr_fmt(fmt) "UDF-fs: " fmt

#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_DEFAULT_PREALLOC_BLOCKS	8

extern __printf(3, 4) void _udf_err(struct super_block *sb,
		const char *function, const char *fmt, ...);
#define udf_err(sb, fmt, ...)					\
	_udf_err(sb, __func__, fmt, ##__VA_ARGS__)

extern __printf(3, 4) void _udf_warn(struct super_block *sb,
		const char *function, const char *fmt, ...);
#define udf_warn(sb, fmt, ...)					\
	_udf_warn(sb, __func__, fmt, ##__VA_ARGS__)

#define udf_info(fmt, ...)					\
	pr_info("INFO " fmt, ##__VA_ARGS__)

#undef UDFFS_DEBUG

#ifdef UDFFS_DEBUG
#define udf_debug(fmt, ...)					\
	printk(KERN_DEBUG pr_fmt("%s:%d:%s: " fmt),		\
	       __FILE__, __LINE__, __func__, ##__VA_ARGS__)
#else
#define udf_debug(fmt, ...)					\
	no_printk(fmt, ##__VA_ARGS__)
#endif

#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		254
#define UDF_NAME_LEN_CS0	255

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 inode_operations udf_symlink_inode_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;
};


/* super.c */

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));
	UDF_SB(sb)->s_lvid_dirty = 1;
}
extern u64 lvid_get_unique_id(struct super_block *sb);
struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
					u32 meta_file_loc, u32 partition_num);

/* 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 long udf_ioctl(struct file *, unsigned int, unsigned long);
/* inode.c */
extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *,
				bool hidden_inode);
static inline struct inode *udf_iget_special(struct super_block *sb,
					     struct kernel_lb_addr *ino)
{
	return __udf_iget(sb, ino, true);
}
static inline struct inode *udf_iget(struct super_block *sb,
				     struct kernel_lb_addr *ino)
{
	return __udf_iget(sb, ino, false);
}
extern int udf_expand_file_adinicb(struct inode *);
extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
extern int udf_setsize(struct inode *, loff_t);
extern void udf_evict_inode(struct inode *);
extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
extern long udf_block_map(struct inode *, sector_t);
extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
			 struct kernel_lb_addr *, uint32_t *, sector_t *);
extern int udf_setup_indirect_aext(struct inode *inode, int block,
				   struct extent_position *epos);
extern int __udf_add_aext(struct inode *inode, struct extent_position *epos,
			  struct kernel_lb_addr *eloc, uint32_t elen, int inc);
extern int udf_add_aext(struct inode *, struct extent_position *,
			struct kernel_lb_addr *, uint32_t, int);
extern void 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 *, const uint8_t *, int,
			    uint8_t *, int);
extern int udf_put_filename(struct super_block *, const uint8_t *, int,
			    uint8_t *, int);
extern int udf_dstrCS0toUTF8(uint8_t *, int, const uint8_t *, int);

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

/* 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
78ace70c JP	4	#define pr_fmt(fmt) "UDF-fs: " fmt
78ace70c JP	5
1da177e4 LT	6	#include "ecma_167.h"
	7	#include "osta_udf.h"
	8
	9	#include <linux/fs.h>
1da177e4	10	#include <linux/types.h>
1da177e4	11	#include <linux/buffer_head.h>
15aebd28	12	#include <linux/udf_fs_i.h>
1da177e4	13
15aebd28	14	#include "udf_sb.h"
1da177e4	15	#include "udfend.h"
d652eefb	16	#include "udf_i.h"
1da177e4	17
15aebd28 CH	18	#define UDF_DEFAULT_PREALLOC_BLOCKS 8
15aebd28 CH	19
34116645 LT	20	extern __printf(3, 4) void _udf_err(struct super_block *sb,
34116645 LT	21	const char function, const char fmt, ...);
78ace70c JP	22	#define udf_err(sb, fmt, ...) \
78ace70c JP	23	_udf_err(sb, __func__, fmt, ##__VA_ARGS__)
15aebd28	24
34116645 LT	25	extern __printf(3, 4) void _udf_warn(struct super_block *sb,
34116645 LT	26	const char function, const char fmt, ...);
a40ecd7b JP	27	#define udf_warn(sb, fmt, ...) \
a40ecd7b JP	28	_udf_warn(sb, __func__, fmt, ##__VA_ARGS__)
7e273e3b	29
78ace70c JP	30	#define udf_info(fmt, ...) \
78ace70c JP	31	pr_info("INFO " fmt, ##__VA_ARGS__)
7e273e3b	32
e4f3ec06	33	#undef UDFFS_DEBUG
15aebd28 CH	34
15aebd28 CH	35	#ifdef UDFFS_DEBUG
78ace70c JP	36	#define udf_debug(fmt, ...) \
	37	printk(KERN_DEBUG pr_fmt("%s:%d:%s: " fmt), \
	38	__FILE__, __LINE__, __func__, ##__VA_ARGS__)
15aebd28	39	#else
78ace70c JP	40	#define udf_debug(fmt, ...) \
78ace70c JP	41	no_printk(fmt, ##__VA_ARGS__)
15aebd28 CH	42	#endif
15aebd28 CH	43
1da177e4 LT	44	#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
	45	#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
	46
	47	#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
	48	#define UDF_EXTENT_FLAG_MASK 0xC0000000
	49
	50	#define UDF_NAME_PAD 4
9fba7056 AG	51	#define UDF_NAME_LEN 254
9fba7056 AG	52	#define UDF_NAME_LEN_CS0 255
1da177e4	53
d652eefb	54	static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
	55	{
	56	struct udf_inode_info *iinfo = UDF_I(inode);
	57	if (iinfo->i_use)
	58	return sizeof(struct unallocSpaceEntry);
	59	else if (iinfo->i_efe)
	60	return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
	61	else
	62	return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
	63	}
	64
	65	static inline size_t udf_ext0_offset(struct inode *inode)
	66	{
	67	if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
	68	return udf_file_entry_alloc_offset(inode);
	69	else
	70	return 0;
	71	}
1da177e4	72
3f2587bb	73	/* computes tag checksum */
5ca4e4be	74	u8 udf_tag_checksum(const struct tag *t);
3f2587bb	75
1da177e4 LT	76	struct dentry;
	77	struct inode;
	78	struct task_struct;
	79	struct buffer_head;
	80	struct super_block;
	81
221e583a	82	extern const struct export_operations udf_export_ops;
c5ef1c42	83	extern const struct inode_operations udf_dir_inode_operations;
4b6f5d20	84	extern const struct file_operations udf_dir_operations;
c5ef1c42	85	extern const struct inode_operations udf_file_inode_operations;
4b6f5d20	86	extern const struct file_operations udf_file_operations;
ad4d0532	87	extern const struct inode_operations udf_symlink_inode_operations;
f5e54d6e CH	88	extern const struct address_space_operations udf_aops;
	89	extern const struct address_space_operations udf_adinicb_aops;
	90	extern const struct address_space_operations udf_symlink_aops;
1da177e4	91
cb00ea35	92	struct udf_fileident_bh {
1da177e4 LT	93	struct buffer_head *sbh;
	94	struct buffer_head *ebh;
	95	int soffset;
	96	int eoffset;
	97	};
	98
cb00ea35	99	struct udf_vds_record {
1da177e4 LT	100	uint32_t block;
	101	uint32_t volDescSeqNum;
	102	};
	103
cb00ea35	104	struct generic_desc {
5ca4e4be	105	struct tag descTag;
28de7948	106	__le32 volDescSeqNum;
1da177e4 LT	107	};
1da177e4 LT	108
ff116fc8	109
1da177e4	110	/* super.c */
fab3c858	111
146bca72 JK	112	static inline void udf_updated_lvid(struct super_block *sb)
	113	{
	114	struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;
	115
	116	BUG_ON(!bh);
	117	WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
	118	bh->b_data)->integrityType !=
	119	cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
146bca72 JK	120	UDF_SB(sb)->s_lvid_dirty = 1;
146bca72 JK	121	}
d664b6af	122	extern u64 lvid_get_unique_id(struct super_block *sb);
3080a74e NJ	123	struct inode udf_find_metadata_inode_efe(struct super_block sb,
3080a74e NJ	124	u32 meta_file_loc, u32 partition_num);
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 */
2f07a88b	132	extern long udf_ioctl(struct file *, unsigned int, unsigned long);
1da177e4	133	/* inode.c */
6174c2eb JK	134	extern struct inode __udf_iget(struct super_block , struct kernel_lb_addr *,
	135	bool hidden_inode);
	136	static inline struct inode udf_iget_special(struct super_block sb,
	137	struct kernel_lb_addr *ino)
	138	{
	139	return __udf_iget(sb, ino, true);
	140	}
	141	static inline struct inode udf_iget(struct super_block sb,
	142	struct kernel_lb_addr *ino)
	143	{
	144	return __udf_iget(sb, ino, false);
	145	}
7e49b6f2	146	extern int udf_expand_file_adinicb(struct inode *);
cb00ea35 CG	147	extern struct buffer_head udf_expand_dir_adinicb(struct inode , int , int );
cb00ea35 CG	148	extern struct buffer_head udf_bread(struct inode , int, int, int *);
7e49b6f2	149	extern int udf_setsize(struct inode *, loff_t);
3aac2b62	150	extern void udf_evict_inode(struct inode *);
a9185b41	151	extern int udf_write_inode(struct inode , struct writeback_control wbc);
60448b1d	152	extern long udf_block_map(struct inode *, sector_t);
cb00ea35	153	extern int8_t inode_bmap(struct inode , sector_t, struct extent_position ,
5ca4e4be	154	struct kernel_lb_addr , uint32_t , sector_t *);
fcea62ba JK	155	extern int udf_setup_indirect_aext(struct inode *inode, int block,
	156	struct extent_position *epos);
	157	extern int __udf_add_aext(struct inode inode, struct extent_position epos,
	158	struct kernel_lb_addr *eloc, uint32_t elen, int inc);
7e49b6f2 JK	159	extern int udf_add_aext(struct inode , struct extent_position ,
	160	struct kernel_lb_addr *, uint32_t, int);
	161	extern void udf_write_aext(struct inode , struct extent_position ,
97e961fd	162	struct kernel_lb_addr *, uint32_t, int);
cb00ea35	163	extern int8_t udf_delete_aext(struct inode *, struct extent_position,
5ca4e4be	164	struct kernel_lb_addr, uint32_t);
cb00ea35	165	extern int8_t udf_next_aext(struct inode , struct extent_position ,
5ca4e4be	166	struct kernel_lb_addr , uint32_t , int);
cb00ea35	167	extern int8_t udf_current_aext(struct inode , struct extent_position ,
5ca4e4be	168	struct kernel_lb_addr , uint32_t , int);
1da177e4 LT	169
	170	/* misc.c */
	171	extern struct buffer_head udf_tgetblk(struct super_block , int);
	172	extern struct buffer_head udf_tread(struct super_block , int);
cb00ea35 CG	173	extern struct genericFormat udf_add_extendedattr(struct inode , uint32_t,
	174	uint32_t, uint8_t);
	175	extern struct genericFormat udf_get_extendedattr(struct inode , uint32_t,
	176	uint8_t);
	177	extern struct buffer_head udf_read_tagged(struct super_block , uint32_t,
	178	uint32_t, uint16_t *);
	179	extern struct buffer_head udf_read_ptagged(struct super_block ,
97e961fd	180	struct kernel_lb_addr *, uint32_t,
cb00ea35	181	uint16_t *);
1da177e4 LT	182	extern void udf_update_tag(char *, int);
	183	extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
	184
	185	/* lowlevel.c */
	186	extern unsigned int udf_get_last_session(struct super_block *);
	187	extern unsigned long udf_get_last_block(struct super_block *);
	188
	189	/* partition.c */
cb00ea35 CG	190	extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
	191	uint32_t);
	192	extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
	193	uint32_t);
	194	extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
	195	uint32_t);
	196	extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
	197	uint32_t);
bfb257a5 JK	198	extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
bfb257a5 JK	199	uint32_t);
1da177e4 LT	200	extern int udf_relocate_blocks(struct super_block , long, long );
1da177e4 LT	201
97e961fd PE	202	static inline uint32_t
	203	udf_get_lb_pblock(struct super_block sb, struct kernel_lb_addr loc,
	204	uint32_t offset)
	205	{
	206	return udf_get_pblock(sb, loc->logicalBlockNum,
	207	loc->partitionReferenceNum, offset);
	208	}
	209
1da177e4	210	/* unicode.c */
9293fcfb AG	211	extern int udf_get_filename(struct super_block , const uint8_t , int,
9293fcfb AG	212	uint8_t *, int);
525e2c56 AG	213	extern int udf_put_filename(struct super_block , const uint8_t , int,
525e2c56 AG	214	uint8_t *, int);
c26f6c61	215	extern int udf_dstrCS0toUTF8(uint8_t , int, const uint8_t , int);
1da177e4 LT	216
	217	/* ialloc.c */
	218	extern void udf_free_inode(struct inode *);
0b93a92b	219	extern struct inode udf_new_inode(struct inode , umode_t);
1da177e4 LT	220
1da177e4 LT	221	/* truncate.c */
74584ae5	222	extern void udf_truncate_tail_extent(struct inode *);
1da177e4 LT	223	extern void udf_discard_prealloc(struct inode *);
	224	extern void udf_truncate_extents(struct inode *);
	225
	226	/* balloc.c */
cb00ea35	227	extern void udf_free_blocks(struct super_block , struct inode ,
97e961fd	228	struct kernel_lb_addr *, uint32_t, uint32_t);
cb00ea35 CG	229	extern int udf_prealloc_blocks(struct super_block , struct inode , uint16_t,
	230	uint32_t, uint32_t);
	231	extern int udf_new_block(struct super_block , struct inode , uint16_t,
	232	uint32_t, int *);
1da177e4	233
1da177e4	234	/* directory.c */
cb00ea35 CG	235	extern struct fileIdentDesc udf_fileident_read(struct inode , loff_t *,
	236	struct udf_fileident_bh *,
	237	struct fileIdentDesc *,
	238	struct extent_position *,
5ca4e4be	239	struct kernel_lb_addr , uint32_t ,
cb00ea35 CG	240	sector_t *);
	241	extern struct fileIdentDesc udf_get_fileident(void buffer, int bufsize,
	242	int *offset);
5ca4e4be PE	243	extern struct long_ad udf_get_filelongad(uint8_t , int, uint32_t *, int);
5ca4e4be PE	244	extern struct short_ad udf_get_fileshortad(uint8_t , int, uint32_t *, int);
1da177e4	245
1da177e4	246	/* udftime.c */
56774805	247	extern struct timespec udf_disk_stamp_to_time(struct timespec dest,
5ca4e4be PE	248	struct timestamp src);
5ca4e4be PE	249	extern struct timestamp udf_time_to_disk_stamp(struct timestamp dest, struct timespec src);
1da177e4	250
cb00ea35	251	#endif /* __UDF_DECL_H */