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