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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef __UDF_DECL_H |
3 | #define __UDF_DECL_H | |
4 | ||
78ace70c JP |
5 | #define pr_fmt(fmt) "UDF-fs: " fmt |
6 | ||
1da177e4 LT |
7 | #include "ecma_167.h" |
8 | #include "osta_udf.h" | |
9 | ||
10 | #include <linux/fs.h> | |
1da177e4 | 11 | #include <linux/types.h> |
1da177e4 | 12 | #include <linux/buffer_head.h> |
15aebd28 | 13 | #include <linux/udf_fs_i.h> |
1da177e4 | 14 | |
15aebd28 | 15 | #include "udf_sb.h" |
1da177e4 | 16 | #include "udfend.h" |
d652eefb | 17 | #include "udf_i.h" |
1da177e4 | 18 | |
15aebd28 CH |
19 | #define UDF_DEFAULT_PREALLOC_BLOCKS 8 |
20 | ||
34116645 LT |
21 | extern __printf(3, 4) void _udf_err(struct super_block *sb, |
22 | const char *function, const char *fmt, ...); | |
78ace70c JP |
23 | #define udf_err(sb, fmt, ...) \ |
24 | _udf_err(sb, __func__, fmt, ##__VA_ARGS__) | |
15aebd28 | 25 | |
34116645 LT |
26 | extern __printf(3, 4) void _udf_warn(struct super_block *sb, |
27 | const char *function, const char *fmt, ...); | |
a40ecd7b JP |
28 | #define udf_warn(sb, fmt, ...) \ |
29 | _udf_warn(sb, __func__, fmt, ##__VA_ARGS__) | |
7e273e3b | 30 | |
78ace70c JP |
31 | #define udf_info(fmt, ...) \ |
32 | pr_info("INFO " fmt, ##__VA_ARGS__) | |
7e273e3b | 33 | |
78ace70c | 34 | #define udf_debug(fmt, ...) \ |
8cbd9af9 | 35 | pr_debug("%s:%d:%s: " fmt, __FILE__, __LINE__, __func__, ##__VA_ARGS__) |
15aebd28 | 36 | |
1da177e4 LT |
37 | #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) ) |
38 | #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) ) | |
39 | ||
40 | #define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF | |
41 | #define UDF_EXTENT_FLAG_MASK 0xC0000000 | |
42 | ||
0c9850f4 JK |
43 | #define UDF_INVALID_ID ((uint32_t)-1) |
44 | ||
1da177e4 | 45 | #define UDF_NAME_PAD 4 |
9fba7056 AG |
46 | #define UDF_NAME_LEN 254 |
47 | #define UDF_NAME_LEN_CS0 255 | |
1da177e4 | 48 | |
d652eefb | 49 | static inline size_t udf_file_entry_alloc_offset(struct inode *inode) |
50 | { | |
51 | struct udf_inode_info *iinfo = UDF_I(inode); | |
52 | if (iinfo->i_use) | |
53 | return sizeof(struct unallocSpaceEntry); | |
54 | else if (iinfo->i_efe) | |
55 | return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr; | |
56 | else | |
57 | return sizeof(struct fileEntry) + iinfo->i_lenEAttr; | |
58 | } | |
59 | ||
60 | static inline size_t udf_ext0_offset(struct inode *inode) | |
61 | { | |
62 | if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) | |
63 | return udf_file_entry_alloc_offset(inode); | |
64 | else | |
65 | return 0; | |
66 | } | |
1da177e4 | 67 | |
3f2587bb | 68 | /* computes tag checksum */ |
5ca4e4be | 69 | u8 udf_tag_checksum(const struct tag *t); |
3f2587bb | 70 | |
b490bdd6 SM |
71 | typedef uint32_t udf_pblk_t; |
72 | ||
1da177e4 LT |
73 | struct dentry; |
74 | struct inode; | |
75 | struct task_struct; | |
76 | struct buffer_head; | |
77 | struct super_block; | |
78 | ||
221e583a | 79 | extern const struct export_operations udf_export_ops; |
c5ef1c42 | 80 | extern const struct inode_operations udf_dir_inode_operations; |
4b6f5d20 | 81 | extern const struct file_operations udf_dir_operations; |
c5ef1c42 | 82 | extern const struct inode_operations udf_file_inode_operations; |
4b6f5d20 | 83 | extern const struct file_operations udf_file_operations; |
ad4d0532 | 84 | extern const struct inode_operations udf_symlink_inode_operations; |
f5e54d6e CH |
85 | extern const struct address_space_operations udf_aops; |
86 | extern const struct address_space_operations udf_adinicb_aops; | |
87 | extern const struct address_space_operations udf_symlink_aops; | |
1da177e4 | 88 | |
d16076d9 JK |
89 | struct udf_fileident_iter { |
90 | struct inode *dir; /* Directory we are working with */ | |
91 | loff_t pos; /* Logical position in a dir */ | |
92 | struct buffer_head *bh[2]; /* Buffer containing 'pos' and possibly | |
93 | * next buffer if entry straddles | |
94 | * blocks */ | |
95 | struct kernel_lb_addr eloc; /* Start of extent containing 'pos' */ | |
96 | uint32_t elen; /* Length of extent containing 'pos' */ | |
97 | sector_t loffset; /* Block offset of 'pos' within above | |
98 | * extent */ | |
99 | struct extent_position epos; /* Position after the above extent */ | |
100 | struct fileIdentDesc fi; /* Copied directory entry */ | |
101 | uint8_t *name; /* Pointer to entry name */ | |
102 | uint8_t namebuf[UDF_NAME_LEN_CS0]; /* Storage for entry name in case | |
103 | * the name is split between two blocks | |
104 | */ | |
105 | }; | |
106 | ||
cb00ea35 | 107 | struct udf_vds_record { |
1da177e4 LT |
108 | uint32_t block; |
109 | uint32_t volDescSeqNum; | |
110 | }; | |
111 | ||
cb00ea35 | 112 | struct generic_desc { |
5ca4e4be | 113 | struct tag descTag; |
28de7948 | 114 | __le32 volDescSeqNum; |
1da177e4 LT |
115 | }; |
116 | ||
ff116fc8 | 117 | |
1da177e4 | 118 | /* super.c */ |
fab3c858 | 119 | |
146bca72 JK |
120 | static inline void udf_updated_lvid(struct super_block *sb) |
121 | { | |
122 | struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; | |
123 | ||
124 | BUG_ON(!bh); | |
125 | WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) | |
126 | bh->b_data)->integrityType != | |
127 | cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); | |
146bca72 JK |
128 | UDF_SB(sb)->s_lvid_dirty = 1; |
129 | } | |
d664b6af | 130 | extern u64 lvid_get_unique_id(struct super_block *sb); |
3080a74e NJ |
131 | struct inode *udf_find_metadata_inode_efe(struct super_block *sb, |
132 | u32 meta_file_loc, u32 partition_num); | |
1da177e4 LT |
133 | |
134 | /* namei.c */ | |
f2e83347 JK |
135 | static inline unsigned int udf_dir_entry_len(struct fileIdentDesc *cfi) |
136 | { | |
137 | return ALIGN(sizeof(struct fileIdentDesc) + | |
138 | le16_to_cpu(cfi->lengthOfImpUse) + cfi->lengthFileIdent, | |
139 | UDF_NAME_PAD); | |
140 | } | |
1da177e4 LT |
141 | |
142 | /* file.c */ | |
2f07a88b | 143 | extern long udf_ioctl(struct file *, unsigned int, unsigned long); |
1da177e4 | 144 | /* inode.c */ |
6174c2eb JK |
145 | extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *, |
146 | bool hidden_inode); | |
147 | static inline struct inode *udf_iget_special(struct super_block *sb, | |
148 | struct kernel_lb_addr *ino) | |
149 | { | |
150 | return __udf_iget(sb, ino, true); | |
151 | } | |
152 | static inline struct inode *udf_iget(struct super_block *sb, | |
153 | struct kernel_lb_addr *ino) | |
154 | { | |
155 | return __udf_iget(sb, ino, false); | |
156 | } | |
7e49b6f2 | 157 | extern int udf_expand_file_adinicb(struct inode *); |
b490bdd6 SM |
158 | extern struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block, |
159 | int create, int *err); | |
7e49b6f2 | 160 | extern int udf_setsize(struct inode *, loff_t); |
3aac2b62 | 161 | extern void udf_evict_inode(struct inode *); |
a9185b41 | 162 | extern int udf_write_inode(struct inode *, struct writeback_control *wbc); |
b490bdd6 | 163 | extern udf_pblk_t udf_block_map(struct inode *inode, sector_t block); |
cb00ea35 | 164 | extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, |
5ca4e4be | 165 | struct kernel_lb_addr *, uint32_t *, sector_t *); |
b490bdd6 | 166 | extern int udf_setup_indirect_aext(struct inode *inode, udf_pblk_t block, |
fcea62ba JK |
167 | struct extent_position *epos); |
168 | extern int __udf_add_aext(struct inode *inode, struct extent_position *epos, | |
169 | struct kernel_lb_addr *eloc, uint32_t elen, int inc); | |
7e49b6f2 JK |
170 | extern int udf_add_aext(struct inode *, struct extent_position *, |
171 | struct kernel_lb_addr *, uint32_t, int); | |
172 | extern void udf_write_aext(struct inode *, struct extent_position *, | |
97e961fd | 173 | struct kernel_lb_addr *, uint32_t, int); |
6c1e4d06 | 174 | extern int8_t udf_delete_aext(struct inode *, struct extent_position); |
cb00ea35 | 175 | extern int8_t udf_next_aext(struct inode *, struct extent_position *, |
5ca4e4be | 176 | struct kernel_lb_addr *, uint32_t *, int); |
cb00ea35 | 177 | extern int8_t udf_current_aext(struct inode *, struct extent_position *, |
5ca4e4be | 178 | struct kernel_lb_addr *, uint32_t *, int); |
c3367a1b | 179 | extern void udf_update_extra_perms(struct inode *inode, umode_t mode); |
1da177e4 LT |
180 | |
181 | /* misc.c */ | |
b490bdd6 SM |
182 | extern struct buffer_head *udf_tgetblk(struct super_block *sb, |
183 | udf_pblk_t block); | |
184 | extern struct buffer_head *udf_tread(struct super_block *sb, udf_pblk_t block); | |
cb00ea35 CG |
185 | extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, |
186 | uint32_t, uint8_t); | |
187 | extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, | |
188 | uint8_t); | |
189 | extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, | |
190 | uint32_t, uint16_t *); | |
191 | extern struct buffer_head *udf_read_ptagged(struct super_block *, | |
97e961fd | 192 | struct kernel_lb_addr *, uint32_t, |
cb00ea35 | 193 | uint16_t *); |
1da177e4 LT |
194 | extern void udf_update_tag(char *, int); |
195 | extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); | |
196 | ||
197 | /* lowlevel.c */ | |
198 | extern unsigned int udf_get_last_session(struct super_block *); | |
199 | extern unsigned long udf_get_last_block(struct super_block *); | |
200 | ||
201 | /* partition.c */ | |
cb00ea35 CG |
202 | extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, |
203 | uint32_t); | |
204 | extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, | |
205 | uint32_t); | |
206 | extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, | |
207 | uint32_t); | |
208 | extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, | |
209 | uint32_t); | |
bfb257a5 JK |
210 | extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, |
211 | uint32_t); | |
1da177e4 LT |
212 | extern int udf_relocate_blocks(struct super_block *, long, long *); |
213 | ||
97e961fd PE |
214 | static inline uint32_t |
215 | udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, | |
216 | uint32_t offset) | |
217 | { | |
218 | return udf_get_pblock(sb, loc->logicalBlockNum, | |
219 | loc->partitionReferenceNum, offset); | |
220 | } | |
221 | ||
1da177e4 | 222 | /* unicode.c */ |
9293fcfb AG |
223 | extern int udf_get_filename(struct super_block *, const uint8_t *, int, |
224 | uint8_t *, int); | |
525e2c56 AG |
225 | extern int udf_put_filename(struct super_block *, const uint8_t *, int, |
226 | uint8_t *, int); | |
e966fc8d JK |
227 | extern int udf_dstrCS0toChar(struct super_block *, uint8_t *, int, |
228 | const uint8_t *, int); | |
1da177e4 LT |
229 | |
230 | /* ialloc.c */ | |
231 | extern void udf_free_inode(struct inode *); | |
0b93a92b | 232 | extern struct inode *udf_new_inode(struct inode *, umode_t); |
1da177e4 LT |
233 | |
234 | /* truncate.c */ | |
74584ae5 | 235 | extern void udf_truncate_tail_extent(struct inode *); |
1da177e4 | 236 | extern void udf_discard_prealloc(struct inode *); |
2b42be5e | 237 | extern int udf_truncate_extents(struct inode *); |
1da177e4 LT |
238 | |
239 | /* balloc.c */ | |
cb00ea35 | 240 | extern void udf_free_blocks(struct super_block *, struct inode *, |
97e961fd | 241 | struct kernel_lb_addr *, uint32_t, uint32_t); |
cb00ea35 CG |
242 | extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, |
243 | uint32_t, uint32_t); | |
b490bdd6 SM |
244 | extern udf_pblk_t udf_new_block(struct super_block *sb, struct inode *inode, |
245 | uint16_t partition, uint32_t goal, int *err); | |
1da177e4 | 246 | |
1da177e4 | 247 | /* directory.c */ |
d16076d9 JK |
248 | int udf_fiiter_init(struct udf_fileident_iter *iter, struct inode *dir, |
249 | loff_t pos); | |
250 | int udf_fiiter_advance(struct udf_fileident_iter *iter); | |
251 | void udf_fiiter_release(struct udf_fileident_iter *iter); | |
252 | void udf_fiiter_write_fi(struct udf_fileident_iter *iter, uint8_t *impuse); | |
f2844803 JK |
253 | void udf_fiiter_update_elen(struct udf_fileident_iter *iter, uint32_t new_elen); |
254 | int udf_fiiter_append_blk(struct udf_fileident_iter *iter); | |
5ca4e4be PE |
255 | extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); |
256 | extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); | |
1da177e4 | 257 | |
1da177e4 | 258 | /* udftime.c */ |
c3b9cecd | 259 | extern void udf_disk_stamp_to_time(struct timespec64 *dest, |
5ca4e4be | 260 | struct timestamp src); |
c3b9cecd | 261 | extern void udf_time_to_disk_stamp(struct timestamp *dest, struct timespec64 src); |
1da177e4 | 262 | |
cb00ea35 | 263 | #endif /* __UDF_DECL_H */ |