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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...) \ |
23 | do { \ |
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 | |
46 | static 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 | |
57 | static 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 | /* computes tag checksum */ |
66 | u8 udf_tag_checksum(const struct tag *t); |
67 | |
68 | struct dentry; |
69 | struct inode; |
70 | struct task_struct; |
71 | struct buffer_head; |
72 | struct super_block; |
73 | |
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; |
83 | |
84 | struct udf_fileident_bh { |
85 | struct buffer_head *sbh; |
86 | struct buffer_head *ebh; |
87 | int soffset; |
88 | int eoffset; |
89 | }; |
90 | |
91 | struct udf_vds_record { |
92 | uint32_t block; |
93 | uint32_t volDescSeqNum; |
94 | }; |
95 | |
96 | struct generic_desc { |
97 | struct tag descTag; |
98 | __le32 volDescSeqNum; |
99 | }; |
100 | |
101 | struct ustr { |
102 | uint8_t u_cmpID; |
103 | uint8_t u_name[UDF_NAME_LEN - 2]; |
104 | uint8_t u_len; |
105 | }; |
106 | |
107 | struct extent_position { |
108 | struct buffer_head *bh; |
109 | uint32_t offset; |
110 | struct kernel_lb_addr block; |
111 | }; |
112 | |
113 | /* super.c */ |
114 | |
115 | __attribute__((format(printf, 3, 4))) |
116 | extern void udf_warning(struct super_block *, const char *, const char *, ...); |
117 | static inline void udf_updated_lvid(struct super_block *sb) |
118 | { |
119 | struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; |
120 | |
121 | BUG_ON(!bh); |
122 | WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) |
123 | bh->b_data)->integrityType != |
124 | cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); |
125 | sb->s_dirt = 1; |
126 | UDF_SB(sb)->s_lvid_dirty = 1; |
127 | } |
128 | extern u64 lvid_get_unique_id(struct super_block *sb); |
129 | |
130 | /* namei.c */ |
131 | extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, |
132 | struct fileIdentDesc *, struct udf_fileident_bh *, |
133 | uint8_t *, uint8_t *); |
134 | |
135 | /* file.c */ |
136 | extern long udf_ioctl(struct file *, unsigned int, unsigned long); |
137 | /* inode.c */ |
138 | extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *); |
139 | extern int udf_expand_file_adinicb(struct inode *); |
140 | extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); |
141 | extern struct buffer_head *udf_bread(struct inode *, int, int, int *); |
142 | extern int udf_setsize(struct inode *, loff_t); |
143 | extern void udf_read_inode(struct inode *); |
144 | extern void udf_evict_inode(struct inode *); |
145 | extern int udf_write_inode(struct inode *, struct writeback_control *wbc); |
146 | extern long udf_block_map(struct inode *, sector_t); |
147 | extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, |
148 | struct kernel_lb_addr *, uint32_t *, sector_t *); |
149 | extern int udf_add_aext(struct inode *, struct extent_position *, |
150 | struct kernel_lb_addr *, uint32_t, int); |
151 | extern void udf_write_aext(struct inode *, struct extent_position *, |
152 | struct kernel_lb_addr *, uint32_t, int); |
153 | extern int8_t udf_delete_aext(struct inode *, struct extent_position, |
154 | struct kernel_lb_addr, uint32_t); |
155 | extern int8_t udf_next_aext(struct inode *, struct extent_position *, |
156 | struct kernel_lb_addr *, uint32_t *, int); |
157 | extern int8_t udf_current_aext(struct inode *, struct extent_position *, |
158 | struct kernel_lb_addr *, uint32_t *, int); |
159 | |
160 | /* misc.c */ |
161 | extern struct buffer_head *udf_tgetblk(struct super_block *, int); |
162 | extern struct buffer_head *udf_tread(struct super_block *, int); |
163 | extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, |
164 | uint32_t, uint8_t); |
165 | extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, |
166 | uint8_t); |
167 | extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, |
168 | uint32_t, uint16_t *); |
169 | extern struct buffer_head *udf_read_ptagged(struct super_block *, |
170 | struct kernel_lb_addr *, uint32_t, |
171 | uint16_t *); |
172 | extern void udf_update_tag(char *, int); |
173 | extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); |
174 | |
175 | /* lowlevel.c */ |
176 | extern unsigned int udf_get_last_session(struct super_block *); |
177 | extern unsigned long udf_get_last_block(struct super_block *); |
178 | |
179 | /* partition.c */ |
180 | extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, |
181 | uint32_t); |
182 | extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, |
183 | uint32_t); |
184 | extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, |
185 | uint32_t); |
186 | extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, |
187 | uint32_t); |
188 | extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, |
189 | uint32_t); |
190 | extern int udf_relocate_blocks(struct super_block *, long, long *); |
191 | |
192 | static inline uint32_t |
193 | udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, |
194 | uint32_t offset) |
195 | { |
196 | return udf_get_pblock(sb, loc->logicalBlockNum, |
197 | loc->partitionReferenceNum, offset); |
198 | } |
199 | |
200 | /* unicode.c */ |
201 | extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int); |
202 | extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, |
203 | int); |
204 | extern int udf_build_ustr(struct ustr *, dstring *, int); |
205 | extern int udf_CS0toUTF8(struct ustr *, const struct ustr *); |
206 | |
207 | /* ialloc.c */ |
208 | extern void udf_free_inode(struct inode *); |
209 | extern struct inode *udf_new_inode(struct inode *, int, int *); |
210 | |
211 | /* truncate.c */ |
212 | extern void udf_truncate_tail_extent(struct inode *); |
213 | extern void udf_discard_prealloc(struct inode *); |
214 | extern void udf_truncate_extents(struct inode *); |
215 | |
216 | /* balloc.c */ |
217 | extern void udf_free_blocks(struct super_block *, struct inode *, |
218 | struct kernel_lb_addr *, uint32_t, uint32_t); |
219 | extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, |
220 | uint32_t, uint32_t); |
221 | extern int udf_new_block(struct super_block *, struct inode *, uint16_t, |
222 | uint32_t, int *); |
223 | |
224 | /* directory.c */ |
225 | extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, |
226 | struct udf_fileident_bh *, |
227 | struct fileIdentDesc *, |
228 | struct extent_position *, |
229 | struct kernel_lb_addr *, uint32_t *, |
230 | sector_t *); |
231 | extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, |
232 | int *offset); |
233 | extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); |
234 | extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); |
235 | |
236 | /* udftime.c */ |
237 | extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest, |
238 | struct timestamp src); |
239 | extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src); |
240 | |
241 | #endif /* __UDF_DECL_H */ |
242 |
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