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 /* computes tag checksum */
66 u8 udf_tag_checksum(const struct tag *t);
74 extern const struct export_operations udf_export_ops;
75 extern const struct inode_operations udf_dir_inode_operations;
76 extern const struct file_operations udf_dir_operations;
77 extern const struct inode_operations udf_file_inode_operations;
78 extern const struct file_operations udf_file_operations;
79 extern const struct inode_operations udf_symlink_inode_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 struct kernel_lb_addr block;
114 extern void udf_warning(struct super_block *, const char *, const char *, ...);
115 static inline void udf_updated_lvid(struct super_block *sb)
117 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;
120 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
121 bh->b_data)->integrityType !=
122 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
124 UDF_SB(sb)->s_lvid_dirty = 1;
128 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
129 struct fileIdentDesc *, struct udf_fileident_bh *,
130 uint8_t *, uint8_t *);
133 extern long udf_ioctl(struct file *, unsigned int, unsigned long);
135 extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *);
136 extern int udf_sync_inode(struct inode *);
137 extern void udf_expand_file_adinicb(struct inode *, int, int *);
138 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
139 extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
140 extern void udf_truncate(struct inode *);
141 extern void udf_read_inode(struct inode *);
142 extern void udf_delete_inode(struct inode *);
143 extern void udf_clear_inode(struct inode *);
144 extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
145 extern long udf_block_map(struct inode *, sector_t);
146 extern int udf_extend_file(struct inode *, struct extent_position *,
147 struct kernel_long_ad *, sector_t);
148 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
149 struct kernel_lb_addr *, uint32_t *, sector_t *);
150 extern int8_t udf_add_aext(struct inode *, struct extent_position *,
151 struct kernel_lb_addr *, uint32_t, int);
152 extern int8_t udf_write_aext(struct inode *, struct extent_position *,
153 struct kernel_lb_addr *, uint32_t, int);
154 extern int8_t udf_delete_aext(struct inode *, struct extent_position,
155 struct kernel_lb_addr, uint32_t);
156 extern int8_t udf_next_aext(struct inode *, struct extent_position *,
157 struct kernel_lb_addr *, uint32_t *, int);
158 extern int8_t udf_current_aext(struct inode *, struct extent_position *,
159 struct kernel_lb_addr *, uint32_t *, int);
162 extern struct buffer_head *udf_tgetblk(struct super_block *, int);
163 extern struct buffer_head *udf_tread(struct super_block *, int);
164 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
166 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
168 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
169 uint32_t, uint16_t *);
170 extern struct buffer_head *udf_read_ptagged(struct super_block *,
171 struct kernel_lb_addr *, uint32_t,
173 extern void udf_update_tag(char *, int);
174 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
177 extern unsigned int udf_get_last_session(struct super_block *);
178 extern unsigned long udf_get_last_block(struct super_block *);
181 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
183 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
185 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
187 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
189 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
191 extern int udf_relocate_blocks(struct super_block *, long, long *);
193 static inline uint32_t
194 udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
197 return udf_get_pblock(sb, loc->logicalBlockNum,
198 loc->partitionReferenceNum, offset);
202 extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
203 extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
205 extern int udf_build_ustr(struct ustr *, dstring *, int);
206 extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);
209 extern void udf_free_inode(struct inode *);
210 extern struct inode *udf_new_inode(struct inode *, int, int *);
213 extern void udf_truncate_tail_extent(struct inode *);
214 extern void udf_discard_prealloc(struct inode *);
215 extern void udf_truncate_extents(struct inode *);
218 extern void udf_free_blocks(struct super_block *, struct inode *,
219 struct kernel_lb_addr *, uint32_t, uint32_t);
220 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
222 extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
226 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
227 struct udf_fileident_bh *,
228 struct fileIdentDesc *,
229 struct extent_position *,
230 struct kernel_lb_addr *, uint32_t *,
232 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
234 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
235 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
238 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
239 struct timestamp src);
240 extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);
242 #endif /* __UDF_DECL_H */