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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 | extern void udf_warning(struct super_block *, const char *, const char *, ...); | |
115 | static inline void udf_updated_lvid(struct super_block *sb) | |
116 | { | |
117 | struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; | |
118 | ||
119 | BUG_ON(!bh); | |
120 | WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) | |
121 | bh->b_data)->integrityType != | |
122 | cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); | |
123 | sb->s_dirt = 1; | |
124 | UDF_SB(sb)->s_lvid_dirty = 1; | |
125 | } | |
126 | ||
127 | /* namei.c */ | |
128 | extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, | |
129 | struct fileIdentDesc *, struct udf_fileident_bh *, | |
130 | uint8_t *, uint8_t *); | |
131 | ||
132 | /* file.c */ | |
133 | extern long udf_ioctl(struct file *, unsigned int, unsigned long); | |
134 | /* inode.c */ | |
135 | extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *); | |
136 | extern int udf_sync_inode(struct inode *); | |
137 | extern void udf_expand_file_adinicb(struct inode *, int, int *); | |
138 | extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); | |
139 | extern struct buffer_head *udf_bread(struct inode *, int, int, int *); | |
140 | extern void udf_truncate(struct inode *); | |
141 | extern void udf_read_inode(struct inode *); | |
142 | extern void udf_evict_inode(struct inode *); | |
143 | extern int udf_write_inode(struct inode *, struct writeback_control *wbc); | |
144 | extern long udf_block_map(struct inode *, sector_t); | |
145 | extern int udf_extend_file(struct inode *, struct extent_position *, | |
146 | struct kernel_long_ad *, 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 int8_t udf_add_aext(struct inode *, struct extent_position *, | |
150 | struct kernel_lb_addr *, uint32_t, int); | |
151 | extern int8_t 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 */ |