Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef __UDF_DECL_H
2#define __UDF_DECL_H
3
4#define pr_fmt(fmt) "UDF-fs: " fmt
5
6#include "ecma_167.h"
7#include "osta_udf.h"
8
9#include <linux/fs.h>
10#include <linux/types.h>
11#include <linux/buffer_head.h>
12#include <linux/udf_fs_i.h>
13
14#include "udf_sb.h"
15#include "udfend.h"
16#include "udf_i.h"
17
18#define UDF_PREALLOCATE
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 256
53#define UDF_PATH_LEN 1023
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
110struct ustr {
111 uint8_t u_cmpID;
112 uint8_t u_name[UDF_NAME_LEN - 2];
113 uint8_t u_len;
114};
115
116struct extent_position {
117 struct buffer_head *bh;
118 uint32_t offset;
119 struct kernel_lb_addr block;
120};
121
122/* super.c */
123
124static inline void udf_updated_lvid(struct super_block *sb)
125{
126 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;
127
128 BUG_ON(!bh);
129 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
130 bh->b_data)->integrityType !=
131 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
132 sb->s_dirt = 1;
133 UDF_SB(sb)->s_lvid_dirty = 1;
134}
135extern u64 lvid_get_unique_id(struct super_block *sb);
136struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
137 u32 meta_file_loc, u32 partition_num);
138
139/* namei.c */
140extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
141 struct fileIdentDesc *, struct udf_fileident_bh *,
142 uint8_t *, uint8_t *);
143
144/* file.c */
145extern long udf_ioctl(struct file *, unsigned int, unsigned long);
146/* inode.c */
147extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *);
148extern int udf_expand_file_adinicb(struct inode *);
149extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
150extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
151extern int udf_setsize(struct inode *, loff_t);
152extern void udf_read_inode(struct inode *);
153extern void udf_evict_inode(struct inode *);
154extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
155extern long udf_block_map(struct inode *, sector_t);
156extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
157 struct kernel_lb_addr *, uint32_t *, sector_t *);
158extern int udf_add_aext(struct inode *, struct extent_position *,
159 struct kernel_lb_addr *, uint32_t, int);
160extern void udf_write_aext(struct inode *, struct extent_position *,
161 struct kernel_lb_addr *, uint32_t, int);
162extern int8_t udf_delete_aext(struct inode *, struct extent_position,
163 struct kernel_lb_addr, uint32_t);
164extern int8_t udf_next_aext(struct inode *, struct extent_position *,
165 struct kernel_lb_addr *, uint32_t *, int);
166extern int8_t udf_current_aext(struct inode *, struct extent_position *,
167 struct kernel_lb_addr *, uint32_t *, int);
168
169/* misc.c */
170extern struct buffer_head *udf_tgetblk(struct super_block *, int);
171extern struct buffer_head *udf_tread(struct super_block *, int);
172extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
173 uint32_t, uint8_t);
174extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
175 uint8_t);
176extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
177 uint32_t, uint16_t *);
178extern struct buffer_head *udf_read_ptagged(struct super_block *,
179 struct kernel_lb_addr *, uint32_t,
180 uint16_t *);
181extern void udf_update_tag(char *, int);
182extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
183
184/* lowlevel.c */
185extern unsigned int udf_get_last_session(struct super_block *);
186extern unsigned long udf_get_last_block(struct super_block *);
187
188/* partition.c */
189extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
190 uint32_t);
191extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
192 uint32_t);
193extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
194 uint32_t);
195extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
196 uint32_t);
197extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
198 uint32_t);
199extern int udf_relocate_blocks(struct super_block *, long, long *);
200
201static inline uint32_t
202udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
203 uint32_t offset)
204{
205 return udf_get_pblock(sb, loc->logicalBlockNum,
206 loc->partitionReferenceNum, offset);
207}
208
209/* unicode.c */
210extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
211extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
212 int);
213extern int udf_build_ustr(struct ustr *, dstring *, int);
214extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);
215
216/* ialloc.c */
217extern void udf_free_inode(struct inode *);
218extern struct inode *udf_new_inode(struct inode *, int, int *);
219
220/* truncate.c */
221extern void udf_truncate_tail_extent(struct inode *);
222extern void udf_discard_prealloc(struct inode *);
223extern void udf_truncate_extents(struct inode *);
224
225/* balloc.c */
226extern void udf_free_blocks(struct super_block *, struct inode *,
227 struct kernel_lb_addr *, uint32_t, uint32_t);
228extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
229 uint32_t, uint32_t);
230extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
231 uint32_t, int *);
232
233/* directory.c */
234extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
235 struct udf_fileident_bh *,
236 struct fileIdentDesc *,
237 struct extent_position *,
238 struct kernel_lb_addr *, uint32_t *,
239 sector_t *);
240extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
241 int *offset);
242extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
243extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
244
245/* udftime.c */
246extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
247 struct timestamp src);
248extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);
249
250#endif /* __UDF_DECL_H */