1 #ifndef __UDF_DECL_H
2 #define __UDF_DECL_H
3
4 #define pr_fmt(fmt) "UDF-fs: " fmt
5
6 #include "ecma_167.h"
7 #include "osta_udf.h"
8
9 #include <linux/fs.h>
10 #include <linux/types.h>
11 #include <linux/buffer_head.h>
12 #include <linux/udf_fs_i.h>
13
14 #include "udf_sb.h"
15 #include "udfend.h"
16 #include "udf_i.h"
17
18 #define UDF_PREALLOCATE
19 #define UDF_DEFAULT_PREALLOC_BLOCKS 8
20
21 extern __printf(3, 4) void _udf_err(struct super_block *sb,
22 const char *function, const char *fmt, ...);
23 #define udf_err(sb, fmt, ...) \
24 _udf_err(sb, __func__, fmt, ##__VA_ARGS__)
25
26 extern __printf(3, 4) void _udf_warn(struct super_block *sb,
27 const char *function, const char *fmt, ...);
28 #define udf_warn(sb, fmt, ...) \
29 _udf_warn(sb, __func__, fmt, ##__VA_ARGS__)
30
31 #define udf_info(fmt, ...) \
32 pr_info("INFO " fmt, ##__VA_ARGS__)
33
34 #undef UDFFS_DEBUG
35
36 #ifdef UDFFS_DEBUG
37 #define udf_debug(fmt, ...) \
38 printk(KERN_DEBUG pr_fmt("%s:%d:%s: " fmt), \
39 __FILE__, __LINE__, __func__, ##__VA_ARGS__)
40 #else
41 #define udf_debug(fmt, ...) \
42 no_printk(fmt, ##__VA_ARGS__)
43 #endif
44
45 #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
46 #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
47
48 #define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
49 #define UDF_EXTENT_FLAG_MASK 0xC0000000
50
51 #define UDF_NAME_PAD 4
52 #define UDF_NAME_LEN 256
53 #define UDF_PATH_LEN 1023
54
udf_file_entry_alloc_offset(struct inode * inode)55 static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
56 {
57 struct udf_inode_info *iinfo = UDF_I(inode);
58 if (iinfo->i_use)
59 return sizeof(struct unallocSpaceEntry);
60 else if (iinfo->i_efe)
61 return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
62 else
63 return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
64 }
65
udf_ext0_offset(struct inode * inode)66 static inline size_t udf_ext0_offset(struct inode *inode)
67 {
68 if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
69 return udf_file_entry_alloc_offset(inode);
70 else
71 return 0;
72 }
73
74 /* computes tag checksum */
75 u8 udf_tag_checksum(const struct tag *t);
76
77 struct dentry;
78 struct inode;
79 struct task_struct;
80 struct buffer_head;
81 struct super_block;
82
83 extern const struct export_operations udf_export_ops;
84 extern const struct inode_operations udf_dir_inode_operations;
85 extern const struct file_operations udf_dir_operations;
86 extern const struct inode_operations udf_file_inode_operations;
87 extern const struct file_operations udf_file_operations;
88 extern const struct inode_operations udf_symlink_inode_operations;
89 extern const struct address_space_operations udf_aops;
90 extern const struct address_space_operations udf_adinicb_aops;
91 extern const struct address_space_operations udf_symlink_aops;
92
93 struct udf_fileident_bh {
94 struct buffer_head *sbh;
95 struct buffer_head *ebh;
96 int soffset;
97 int eoffset;
98 };
99
100 struct udf_vds_record {
101 uint32_t block;
102 uint32_t volDescSeqNum;
103 };
104
105 struct generic_desc {
106 struct tag descTag;
107 __le32 volDescSeqNum;
108 };
109
110 struct ustr {
111 uint8_t u_cmpID;
112 uint8_t u_name[UDF_NAME_LEN - 2];
113 uint8_t u_len;
114 };
115
116
117 /* super.c */
118
udf_updated_lvid(struct super_block * sb)119 static inline void udf_updated_lvid(struct super_block *sb)
120 {
121 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;
122
123 BUG_ON(!bh);
124 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
125 bh->b_data)->integrityType !=
126 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
127 UDF_SB(sb)->s_lvid_dirty = 1;
128 }
129 extern u64 lvid_get_unique_id(struct super_block *sb);
130 struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
131 u32 meta_file_loc, u32 partition_num);
132
133 /* namei.c */
134 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
135 struct fileIdentDesc *, struct udf_fileident_bh *,
136 uint8_t *, uint8_t *);
137
138 /* file.c */
139 extern long udf_ioctl(struct file *, unsigned int, unsigned long);
140 /* inode.c */
141 extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *,
142 bool hidden_inode);
udf_iget_special(struct super_block * sb,struct kernel_lb_addr * ino)143 static inline struct inode *udf_iget_special(struct super_block *sb,
144 struct kernel_lb_addr *ino)
145 {
146 return __udf_iget(sb, ino, true);
147 }
udf_iget(struct super_block * sb,struct kernel_lb_addr * ino)148 static inline struct inode *udf_iget(struct super_block *sb,
149 struct kernel_lb_addr *ino)
150 {
151 return __udf_iget(sb, ino, false);
152 }
153 extern int udf_expand_file_adinicb(struct inode *);
154 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
155 extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
156 extern int udf_setsize(struct inode *, loff_t);
157 extern void udf_evict_inode(struct inode *);
158 extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
159 extern long udf_block_map(struct inode *, sector_t);
160 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
161 struct kernel_lb_addr *, uint32_t *, sector_t *);
162 extern int udf_add_aext(struct inode *, struct extent_position *,
163 struct kernel_lb_addr *, uint32_t, int);
164 extern void udf_write_aext(struct inode *, struct extent_position *,
165 struct kernel_lb_addr *, uint32_t, int);
166 extern int8_t udf_delete_aext(struct inode *, struct extent_position,
167 struct kernel_lb_addr, uint32_t);
168 extern int8_t udf_next_aext(struct inode *, struct extent_position *,
169 struct kernel_lb_addr *, uint32_t *, int);
170 extern int8_t udf_current_aext(struct inode *, struct extent_position *,
171 struct kernel_lb_addr *, uint32_t *, int);
172
173 /* misc.c */
174 extern struct buffer_head *udf_tgetblk(struct super_block *, int);
175 extern struct buffer_head *udf_tread(struct super_block *, int);
176 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
177 uint32_t, uint8_t);
178 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
179 uint8_t);
180 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
181 uint32_t, uint16_t *);
182 extern struct buffer_head *udf_read_ptagged(struct super_block *,
183 struct kernel_lb_addr *, uint32_t,
184 uint16_t *);
185 extern void udf_update_tag(char *, int);
186 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
187
188 /* lowlevel.c */
189 extern unsigned int udf_get_last_session(struct super_block *);
190 extern unsigned long udf_get_last_block(struct super_block *);
191
192 /* partition.c */
193 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
194 uint32_t);
195 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
196 uint32_t);
197 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
198 uint32_t);
199 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
200 uint32_t);
201 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
202 uint32_t);
203 extern int udf_relocate_blocks(struct super_block *, long, long *);
204
205 static inline uint32_t
udf_get_lb_pblock(struct super_block * sb,struct kernel_lb_addr * loc,uint32_t offset)206 udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
207 uint32_t offset)
208 {
209 return udf_get_pblock(sb, loc->logicalBlockNum,
210 loc->partitionReferenceNum, offset);
211 }
212
213 /* unicode.c */
214 extern int udf_get_filename(struct super_block *, uint8_t *, int, uint8_t *,
215 int);
216 extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
217 int);
218 extern int udf_build_ustr(struct ustr *, dstring *, int);
219 extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);
220
221 /* ialloc.c */
222 extern void udf_free_inode(struct inode *);
223 extern struct inode *udf_new_inode(struct inode *, umode_t);
224
225 /* truncate.c */
226 extern void udf_truncate_tail_extent(struct inode *);
227 extern void udf_discard_prealloc(struct inode *);
228 extern void udf_truncate_extents(struct inode *);
229
230 /* balloc.c */
231 extern void udf_free_blocks(struct super_block *, struct inode *,
232 struct kernel_lb_addr *, uint32_t, uint32_t);
233 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
234 uint32_t, uint32_t);
235 extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
236 uint32_t, int *);
237
238 /* directory.c */
239 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
240 struct udf_fileident_bh *,
241 struct fileIdentDesc *,
242 struct extent_position *,
243 struct kernel_lb_addr *, uint32_t *,
244 sector_t *);
245 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
246 int *offset);
247 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
248 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
249
250 /* udftime.c */
251 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
252 struct timestamp src);
253 extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);
254
255 #endif /* __UDF_DECL_H */
256