8 #include <linux/types.h>
9 #include <linux/buffer_head.h>
10 #include <linux/udf_fs_i.h>
16 #define UDF_PREALLOCATE
17 #define UDF_DEFAULT_PREALLOC_BLOCKS 8
22 #define udf_debug(f, a...) \
24 printk(KERN_DEBUG "UDF-fs DEBUG %s:%d:%s: ", \
25 __FILE__, __LINE__, __func__); \
29 #define udf_debug(f, a...) /**/
32 #define udf_info(f, a...) \
33 printk(KERN_INFO "UDF-fs INFO " f, ##a);
36 #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
37 #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
39 #define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
40 #define UDF_EXTENT_FLAG_MASK 0xC0000000
42 #define UDF_NAME_PAD 4
43 #define UDF_NAME_LEN 256
44 #define UDF_PATH_LEN 1023
46 static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
48 struct udf_inode_info *iinfo = UDF_I(inode);
50 return sizeof(struct unallocSpaceEntry);
51 else if (iinfo->i_efe)
52 return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
54 return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
57 static inline size_t udf_ext0_offset(struct inode *inode)
59 if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
60 return udf_file_entry_alloc_offset(inode);
65 #define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
67 /* computes tag checksum */
68 u8 udf_tag_checksum(const tag *t);
76 extern const struct inode_operations udf_dir_inode_operations;
77 extern const struct file_operations udf_dir_operations;
78 extern const struct inode_operations udf_file_inode_operations;
79 extern const struct file_operations udf_file_operations;
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;
84 struct udf_fileident_bh {
85 struct buffer_head *sbh;
86 struct buffer_head *ebh;
91 struct udf_vds_record {
93 uint32_t volDescSeqNum;
103 uint8_t u_name[UDF_NAME_LEN - 2];
107 struct extent_position {
108 struct buffer_head *bh;
110 kernel_lb_addr block;
114 extern void udf_warning(struct super_block *, const char *, const char *, ...);
117 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
118 struct fileIdentDesc *, struct udf_fileident_bh *,
119 uint8_t *, uint8_t *);
122 extern int udf_ioctl(struct inode *, struct file *, unsigned int,
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 *);
129 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
130 extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
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);
136 extern long udf_block_map(struct inode *, sector_t);
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);
153 extern struct buffer_head *udf_tgetblk(struct super_block *, int);
154 extern struct buffer_head *udf_tread(struct super_block *, int);
155 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
157 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_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,
164 extern void udf_update_tag(char *, int);
165 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
168 extern unsigned int udf_get_last_session(struct super_block *);
169 extern unsigned long udf_get_last_block(struct super_block *);
172 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
174 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
176 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
178 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
180 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
182 extern int udf_relocate_blocks(struct super_block *, long, long *);
185 extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
186 extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
188 extern int udf_build_ustr(struct ustr *, dstring *, int);
189 extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);
192 extern void udf_free_inode(struct inode *);
193 extern struct inode *udf_new_inode(struct inode *, int, int *);
196 extern void udf_truncate_tail_extent(struct inode *);
197 extern void udf_discard_prealloc(struct inode *);
198 extern void udf_truncate_extents(struct inode *);
201 extern void udf_free_blocks(struct super_block *, struct inode *,
202 kernel_lb_addr, uint32_t, uint32_t);
203 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
205 extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
209 extern int udf_fsync_file(struct file *, struct dentry *, int);
212 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
213 struct udf_fileident_bh *,
214 struct fileIdentDesc *,
215 struct extent_position *,
216 kernel_lb_addr *, uint32_t *,
218 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
220 extern long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
221 extern short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
224 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
226 extern timestamp *udf_time_to_disk_stamp(timestamp *dest, struct timespec src);
228 #endif /* __UDF_DECL_H */