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192.168.1.100 / T103 / 07e3f8a18589c1aeac858a8023d62ee522e6348c / . / src / kernel / linux / v4.14 / fs / udf / udfdecl.h
blob: fa206558128db9c1b9f31bf4c52755a61b07e081 [file] [log] [blame]
rjw1f884582022-01-06 17:20:42 +0800[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __UDF_DECL_H
3#define __UDF_DECL_H
4
5#define pr_fmt(fmt) "UDF-fs: " fmt
6
7#include "ecma_167.h"
8#include "osta_udf.h"
9
10#include <linux/fs.h>
11#include <linux/types.h>
12#include <linux/buffer_head.h>
13#include <linux/udf_fs_i.h>
14
15#include "udf_sb.h"
16#include "udfend.h"
17#include "udf_i.h"
18
19#define UDF_DEFAULT_PREALLOC_BLOCKS 8
20
21extern __printf(3, 4) void _udf_err(struct super_block *sb,
22 const char *function, const char *fmt, ...);
23#define udf_err(sb, fmt, ...) \
24 _udf_err(sb, __func__, fmt, ##__VA_ARGS__)
25
26extern __printf(3, 4) void _udf_warn(struct super_block *sb,
27 const char *function, const char *fmt, ...);
28#define udf_warn(sb, fmt, ...) \
29 _udf_warn(sb, __func__, fmt, ##__VA_ARGS__)
30
31#define udf_info(fmt, ...) \
32 pr_info("INFO " fmt, ##__VA_ARGS__)
33
34#undef UDFFS_DEBUG
35
36#ifdef UDFFS_DEBUG
37#define udf_debug(fmt, ...) \
38 printk(KERN_DEBUG pr_fmt("%s:%d:%s: " fmt), \
39 __FILE__, __LINE__, __func__, ##__VA_ARGS__)
40#else
41#define udf_debug(fmt, ...) \
42 no_printk(fmt, ##__VA_ARGS__)
43#endif
44
45#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
46#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
47
48#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
49#define UDF_EXTENT_FLAG_MASK 0xC0000000
50
51#define UDF_NAME_PAD 4
52#define UDF_NAME_LEN 254
53#define UDF_NAME_LEN_CS0 255
54
55static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
56{
57 struct udf_inode_info *iinfo = UDF_I(inode);
58 if (iinfo->i_use)
59 return sizeof(struct unallocSpaceEntry);
60 else if (iinfo->i_efe)
61 return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
62 else
63 return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
64}
65
66static inline size_t udf_ext0_offset(struct inode *inode)
67{
68 if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
69 return udf_file_entry_alloc_offset(inode);
70 else
71 return 0;
72}
73
74/* computes tag checksum */
75u8 udf_tag_checksum(const struct tag *t);
76
77struct dentry;
78struct inode;
79struct task_struct;
80struct buffer_head;
81struct super_block;
82
83extern const struct export_operations udf_export_ops;
84extern const struct inode_operations udf_dir_inode_operations;
85extern const struct file_operations udf_dir_operations;
86extern const struct inode_operations udf_file_inode_operations;
87extern const struct file_operations udf_file_operations;
88extern const struct inode_operations udf_symlink_inode_operations;
89extern const struct address_space_operations udf_aops;
90extern const struct address_space_operations udf_adinicb_aops;
91extern const struct address_space_operations udf_symlink_aops;
92
93struct udf_fileident_bh {
94 struct buffer_head *sbh;
95 struct buffer_head *ebh;
96 int soffset;
97 int eoffset;
98};
99
100struct udf_vds_record {
101 uint32_t block;
102 uint32_t volDescSeqNum;
103};
104
105struct generic_desc {
106 struct tag descTag;
107 __le32 volDescSeqNum;
108};
109
110
111/* super.c */
112
113static inline void udf_updated_lvid(struct super_block *sb)
114{
115 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;
116
117 BUG_ON(!bh);
118 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
119 bh->b_data)->integrityType !=
120 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
121 UDF_SB(sb)->s_lvid_dirty = 1;
122}
123extern u64 lvid_get_unique_id(struct super_block *sb);
124struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
125 u32 meta_file_loc, u32 partition_num);
126
127/* namei.c */
128extern 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 */
133extern long udf_ioctl(struct file *, unsigned int, unsigned long);
134/* inode.c */
135extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *,
136 bool hidden_inode);
137static inline struct inode *udf_iget_special(struct super_block *sb,
138 struct kernel_lb_addr *ino)
139{
140 return __udf_iget(sb, ino, true);
141}
142static inline struct inode *udf_iget(struct super_block *sb,
143 struct kernel_lb_addr *ino)
144{
145 return __udf_iget(sb, ino, false);
146}
147extern int udf_expand_file_adinicb(struct inode *);
148extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
149extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
150extern int udf_setsize(struct inode *, loff_t);
151extern void udf_evict_inode(struct inode *);
152extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
153extern long udf_block_map(struct inode *, sector_t);
154extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
155 struct kernel_lb_addr *, uint32_t *, sector_t *);
156extern int udf_setup_indirect_aext(struct inode *inode, int block,
157 struct extent_position *epos);
158extern int __udf_add_aext(struct inode *inode, struct extent_position *epos,
159 struct kernel_lb_addr *eloc, uint32_t elen, int inc);
160extern int udf_add_aext(struct inode *, struct extent_position *,
161 struct kernel_lb_addr *, uint32_t, int);
162extern void udf_write_aext(struct inode *, struct extent_position *,
163 struct kernel_lb_addr *, uint32_t, int);
164extern int8_t udf_delete_aext(struct inode *, struct extent_position,
165 struct kernel_lb_addr, uint32_t);
166extern int8_t udf_next_aext(struct inode *, struct extent_position *,
167 struct kernel_lb_addr *, uint32_t *, int);
168extern int8_t udf_current_aext(struct inode *, struct extent_position *,
169 struct kernel_lb_addr *, uint32_t *, int);
170
171/* misc.c */
172extern struct buffer_head *udf_tgetblk(struct super_block *, int);
173extern struct buffer_head *udf_tread(struct super_block *, int);
174extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
175 uint32_t, uint8_t);
176extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
177 uint8_t);
178extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
179 uint32_t, uint16_t *);
180extern struct buffer_head *udf_read_ptagged(struct super_block *,
181 struct kernel_lb_addr *, uint32_t,
182 uint16_t *);
183extern void udf_update_tag(char *, int);
184extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
185
186/* lowlevel.c */
187extern unsigned int udf_get_last_session(struct super_block *);
188extern unsigned long udf_get_last_block(struct super_block *);
189
190/* partition.c */
191extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
192 uint32_t);
193extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
194 uint32_t);
195extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
196 uint32_t);
197extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
198 uint32_t);
199extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
200 uint32_t);
201extern int udf_relocate_blocks(struct super_block *, long, long *);
202
203static inline uint32_t
204udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
205 uint32_t offset)
206{
207 return udf_get_pblock(sb, loc->logicalBlockNum,
208 loc->partitionReferenceNum, offset);
209}
210
211/* unicode.c */
212extern int udf_get_filename(struct super_block *, const uint8_t *, int,
213 uint8_t *, int);
214extern int udf_put_filename(struct super_block *, const uint8_t *, int,
215 uint8_t *, int);
216extern int udf_dstrCS0toUTF8(uint8_t *, int, const uint8_t *, int);
217
218/* ialloc.c */
219extern void udf_free_inode(struct inode *);
220extern struct inode *udf_new_inode(struct inode *, umode_t);
221
222/* truncate.c */
223extern void udf_truncate_tail_extent(struct inode *);
224extern void udf_discard_prealloc(struct inode *);
225extern void udf_truncate_extents(struct inode *);
226
227/* balloc.c */
228extern void udf_free_blocks(struct super_block *, struct inode *,
229 struct kernel_lb_addr *, uint32_t, uint32_t);
230extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
231 uint32_t, uint32_t);
232extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
233 uint32_t, int *);
234
235/* directory.c */
236extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
237 struct udf_fileident_bh *,
238 struct fileIdentDesc *,
239 struct extent_position *,
240 struct kernel_lb_addr *, uint32_t *,
241 sector_t *);
242extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
243 int *offset);
244extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
245extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
246
247/* udftime.c */
248extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
249 struct timestamp src);
250extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);
251
252#endif /* __UDF_DECL_H */