tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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...) \
23do { \
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
46static 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
57static 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 */
66u8 udf_tag_checksum(const struct tag *t);
67
68struct dentry;
69struct inode;
70struct task_struct;
71struct buffer_head;
72struct super_block;
73
74extern const struct export_operations udf_export_ops;
75extern const struct inode_operations udf_dir_inode_operations;
76extern const struct file_operations udf_dir_operations;
77extern const struct inode_operations udf_file_inode_operations;
78extern const struct file_operations udf_file_operations;
79extern const struct inode_operations udf_symlink_inode_operations;
80extern const struct address_space_operations udf_aops;
81extern const struct address_space_operations udf_adinicb_aops;
82extern const struct address_space_operations udf_symlink_aops;
83
84struct udf_fileident_bh {
85 struct buffer_head *sbh;
86 struct buffer_head *ebh;
87 int soffset;
88 int eoffset;
89};
90
91struct udf_vds_record {
92 uint32_t block;
93 uint32_t volDescSeqNum;
94};
95
96struct generic_desc {
97 struct tag descTag;
98 __le32 volDescSeqNum;
99};
100
101struct ustr {
102 uint8_t u_cmpID;
103 uint8_t u_name[UDF_NAME_LEN - 2];
104 uint8_t u_len;
105};
106
107struct extent_position {
108 struct buffer_head *bh;
109 uint32_t offset;
110 struct kernel_lb_addr block;
111};
112
113/* super.c */
114extern void udf_warning(struct super_block *, const char *, const char *, ...);
115static 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 */
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 int udf_ioctl(struct inode *, struct file *, unsigned int,
134 unsigned long);
135extern int udf_setattr(struct dentry *dentry, struct iattr *iattr);
136/* inode.c */
137extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *);
138extern int udf_sync_inode(struct inode *);
139extern void udf_expand_file_adinicb(struct inode *, int, int *);
140extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
141extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
142extern void udf_truncate(struct inode *);
143extern void udf_read_inode(struct inode *);
144extern void udf_delete_inode(struct inode *);
145extern void udf_clear_inode(struct inode *);
146extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
147extern long udf_block_map(struct inode *, sector_t);
148extern int udf_extend_file(struct inode *, struct extent_position *,
149 struct kernel_long_ad *, sector_t);
150extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
151 struct kernel_lb_addr *, uint32_t *, sector_t *);
152extern int8_t udf_add_aext(struct inode *, struct extent_position *,
153 struct kernel_lb_addr *, uint32_t, int);
154extern int8_t udf_write_aext(struct inode *, struct extent_position *,
155 struct kernel_lb_addr *, uint32_t, int);
156extern int8_t udf_delete_aext(struct inode *, struct extent_position,
157 struct kernel_lb_addr, uint32_t);
158extern int8_t udf_next_aext(struct inode *, struct extent_position *,
159 struct kernel_lb_addr *, uint32_t *, int);
160extern int8_t udf_current_aext(struct inode *, struct extent_position *,
161 struct kernel_lb_addr *, uint32_t *, int);
162
163/* misc.c */
164extern struct buffer_head *udf_tgetblk(struct super_block *, int);
165extern struct buffer_head *udf_tread(struct super_block *, int);
166extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
167 uint32_t, uint8_t);
168extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
169 uint8_t);
170extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
171 uint32_t, uint16_t *);
172extern struct buffer_head *udf_read_ptagged(struct super_block *,
173 struct kernel_lb_addr *, uint32_t,
174 uint16_t *);
175extern void udf_update_tag(char *, int);
176extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
177
178/* lowlevel.c */
179extern unsigned int udf_get_last_session(struct super_block *);
180extern unsigned long udf_get_last_block(struct super_block *);
181
182/* partition.c */
183extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
184 uint32_t);
185extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
186 uint32_t);
187extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
188 uint32_t);
189extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
190 uint32_t);
191extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
192 uint32_t);
193extern int udf_relocate_blocks(struct super_block *, long, long *);
194
195static inline uint32_t
196udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
197 uint32_t offset)
198{
199 return udf_get_pblock(sb, loc->logicalBlockNum,
200 loc->partitionReferenceNum, offset);
201}
202
203/* unicode.c */
204extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
205extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *,
206 int);
207extern int udf_build_ustr(struct ustr *, dstring *, int);
208extern int udf_CS0toUTF8(struct ustr *, const struct ustr *);
209
210/* ialloc.c */
211extern void udf_free_inode(struct inode *);
212extern struct inode *udf_new_inode(struct inode *, int, int *);
213
214/* truncate.c */
215extern void udf_truncate_tail_extent(struct inode *);
216extern void udf_discard_prealloc(struct inode *);
217extern void udf_truncate_extents(struct inode *);
218
219/* balloc.c */
220extern void udf_free_blocks(struct super_block *, struct inode *,
221 struct kernel_lb_addr *, uint32_t, uint32_t);
222extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
223 uint32_t, uint32_t);
224extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
225 uint32_t, int *);
226
227/* directory.c */
228extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
229 struct udf_fileident_bh *,
230 struct fileIdentDesc *,
231 struct extent_position *,
232 struct kernel_lb_addr *, uint32_t *,
233 sector_t *);
234extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
235 int *offset);
236extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
237extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
238
239/* udftime.c */
240extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
241 struct timestamp src);
242extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);
243
244#endif /* __UDF_DECL_H */