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