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_DEFAULT_PREALLOC_BLOCKS 8
19
20extern __printf(3, 4) void _udf_err(struct super_block *sb,
21 const char *function, const char *fmt, ...);
22#define udf_err(sb, fmt, ...) \
23 _udf_err(sb, __func__, fmt, ##__VA_ARGS__)
24
25extern __printf(3, 4) void _udf_warn(struct super_block *sb,
26 const char *function, const char *fmt, ...);
27#define udf_warn(sb, fmt, ...) \
28 _udf_warn(sb, __func__, fmt, ##__VA_ARGS__)
29
30#define udf_info(fmt, ...) \
31 pr_info("INFO " fmt, ##__VA_ARGS__)
32
33#undef UDFFS_DEBUG
34
35#ifdef UDFFS_DEBUG
36#define udf_debug(fmt, ...) \
37 printk(KERN_DEBUG pr_fmt("%s:%d:%s: " fmt), \
38 __FILE__, __LINE__, __func__, ##__VA_ARGS__)
39#else
40#define udf_debug(fmt, ...) \
41 no_printk(fmt, ##__VA_ARGS__)
42#endif
43
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
51#define UDF_NAME_LEN 254
52#define UDF_NAME_LEN_CS0 255
53
54static 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
65static 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}
72
73
74u8 udf_tag_checksum(const struct tag *t);
75
76struct dentry;
77struct inode;
78struct task_struct;
79struct buffer_head;
80struct super_block;
81
82extern const struct export_operations udf_export_ops;
83extern const struct inode_operations udf_dir_inode_operations;
84extern const struct file_operations udf_dir_operations;
85extern const struct inode_operations udf_file_inode_operations;
86extern const struct file_operations udf_file_operations;
87extern const struct inode_operations udf_symlink_inode_operations;
88extern const struct address_space_operations udf_aops;
89extern const struct address_space_operations udf_adinicb_aops;
90extern const struct address_space_operations udf_symlink_aops;
91
92struct udf_fileident_bh {
93 struct buffer_head *sbh;
94 struct buffer_head *ebh;
95 int soffset;
96 int eoffset;
97};
98
99struct udf_vds_record {
100 uint32_t block;
101 uint32_t volDescSeqNum;
102};
103
104struct generic_desc {
105 struct tag descTag;
106 __le32 volDescSeqNum;
107};
108
109
110
111
112static 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));
120 UDF_SB(sb)->s_lvid_dirty = 1;
121}
122extern u64 lvid_get_unique_id(struct super_block *sb);
123struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
124 u32 meta_file_loc, u32 partition_num);
125
126
127extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
128 struct fileIdentDesc *, struct udf_fileident_bh *,
129 uint8_t *, uint8_t *);
130
131
132extern long udf_ioctl(struct file *, unsigned int, unsigned long);
133
134extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *,
135 bool hidden_inode);
136static 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}
141static inline struct inode *udf_iget(struct super_block *sb,
142 struct kernel_lb_addr *ino)
143{
144 return __udf_iget(sb, ino, false);
145}
146extern int udf_expand_file_adinicb(struct inode *);
147extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
148extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
149extern int udf_setsize(struct inode *, loff_t);
150extern void udf_evict_inode(struct inode *);
151extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
152extern long udf_block_map(struct inode *, sector_t);
153extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
154 struct kernel_lb_addr *, uint32_t *, sector_t *);
155extern int udf_setup_indirect_aext(struct inode *inode, int block,
156 struct extent_position *epos);
157extern int __udf_add_aext(struct inode *inode, struct extent_position *epos,
158 struct kernel_lb_addr *eloc, uint32_t elen, int inc);
159extern int udf_add_aext(struct inode *, struct extent_position *,
160 struct kernel_lb_addr *, uint32_t, int);
161extern void udf_write_aext(struct inode *, struct extent_position *,
162 struct kernel_lb_addr *, uint32_t, int);
163extern int8_t udf_delete_aext(struct inode *, struct extent_position,
164 struct kernel_lb_addr, uint32_t);
165extern int8_t udf_next_aext(struct inode *, struct extent_position *,
166 struct kernel_lb_addr *, uint32_t *, int);
167extern int8_t udf_current_aext(struct inode *, struct extent_position *,
168 struct kernel_lb_addr *, uint32_t *, int);
169
170
171extern struct buffer_head *udf_tgetblk(struct super_block *, int);
172extern struct buffer_head *udf_tread(struct super_block *, int);
173extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
174 uint32_t, uint8_t);
175extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
176 uint8_t);
177extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
178 uint32_t, uint16_t *);
179extern struct buffer_head *udf_read_ptagged(struct super_block *,
180 struct kernel_lb_addr *, uint32_t,
181 uint16_t *);
182extern void udf_update_tag(char *, int);
183extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
184
185
186extern unsigned int udf_get_last_session(struct super_block *);
187extern unsigned long udf_get_last_block(struct super_block *);
188
189
190extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
191 uint32_t);
192extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
193 uint32_t);
194extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
195 uint32_t);
196extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
197 uint32_t);
198extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
199 uint32_t);
200extern int udf_relocate_blocks(struct super_block *, long, long *);
201
202static inline uint32_t
203udf_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
210
211extern int udf_get_filename(struct super_block *, const uint8_t *, int,
212 uint8_t *, int);
213extern int udf_put_filename(struct super_block *, const uint8_t *, int,
214 uint8_t *, int);
215extern int udf_dstrCS0toUTF8(uint8_t *, int, const uint8_t *, int);
216
217
218extern void udf_free_inode(struct inode *);
219extern struct inode *udf_new_inode(struct inode *, umode_t);
220
221
222extern void udf_truncate_tail_extent(struct inode *);
223extern void udf_discard_prealloc(struct inode *);
224extern void udf_truncate_extents(struct inode *);
225
226
227extern void udf_free_blocks(struct super_block *, struct inode *,
228 struct kernel_lb_addr *, uint32_t, uint32_t);
229extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
230 uint32_t, uint32_t);
231extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
232 uint32_t, int *);
233
234
235extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
236 struct udf_fileident_bh *,
237 struct fileIdentDesc *,
238 struct extent_position *,
239 struct kernel_lb_addr *, uint32_t *,
240 sector_t *);
241extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
242 int *offset);
243extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
244extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
245
246
247extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
248 struct timestamp src);
249extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);
250
251#endif
252
