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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __UDF_DECL_H
2#define __UDF_DECL_H
3
Joe Perches78ace702011-10-10 01:08:05 -07004#define pr_fmt(fmt) "UDF-fs: " fmt
5
Linus Torvalds1da177e2005-04-16 15:20:36 -07006#include "ecma_167.h"
7#include "osta_udf.h"
8
9#include <linux/fs.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070010#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#include <linux/buffer_head.h>
Christoph Hellwig15aebd22008-02-22 12:39:12 +010012#include <linux/udf_fs_i.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070013
Christoph Hellwig15aebd22008-02-22 12:39:12 +010014#include "udf_sb.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070015#include "udfend.h"
marcin.slusarz@gmail.comd652eef2008-01-30 22:03:59 +010016#include "udf_i.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
Christoph Hellwig15aebd22008-02-22 12:39:12 +010018#define UDF_PREALLOCATE
19#define UDF_DEFAULT_PREALLOC_BLOCKS 8
20
Linus Torvalds34116642011-11-02 10:05:22 -070021extern __printf(3, 4) void _udf_err(struct super_block *sb,
22 const char *function, const char *fmt, ...);
Joe Perches78ace702011-10-10 01:08:05 -070023#define udf_err(sb, fmt, ...) \
24 _udf_err(sb, __func__, fmt, ##__VA_ARGS__)
Christoph Hellwig15aebd22008-02-22 12:39:12 +010025
Linus Torvalds34116642011-11-02 10:05:22 -070026extern __printf(3, 4) void _udf_warn(struct super_block *sb,
27 const char *function, const char *fmt, ...);
Joe Perchesa40ecd72011-10-10 01:08:04 -070028#define udf_warn(sb, fmt, ...) \
29 _udf_warn(sb, __func__, fmt, ##__VA_ARGS__)
Joe Perches7e273e32011-10-10 01:08:02 -070030
Joe Perches78ace702011-10-10 01:08:05 -070031#define udf_info(fmt, ...) \
32 pr_info("INFO " fmt, ##__VA_ARGS__)
Joe Perches7e273e32011-10-10 01:08:02 -070033
Christoph Hellwig15aebd22008-02-22 12:39:12 +010034#undef UDFFS_DEBUG
35
36#ifdef UDFFS_DEBUG
Joe Perches78ace702011-10-10 01:08:05 -070037#define udf_debug(fmt, ...) \
38 printk(KERN_DEBUG pr_fmt("%s:%d:%s: " fmt), \
39 __FILE__, __LINE__, __func__, ##__VA_ARGS__)
Christoph Hellwig15aebd22008-02-22 12:39:12 +010040#else
Joe Perches78ace702011-10-10 01:08:05 -070041#define udf_debug(fmt, ...) \
42 no_printk(fmt, ##__VA_ARGS__)
Christoph Hellwig15aebd22008-02-22 12:39:12 +010043#endif
44
Linus Torvalds1da177e2005-04-16 15:20:36 -070045#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
Andrew Gabbasov9fba7052016-01-15 02:44:21 -060052#define UDF_NAME_LEN 254
53#define UDF_NAME_LEN_CS0 255
Linus Torvalds1da177e2005-04-16 15:20:36 -070054
marcin.slusarz@gmail.comd652eef2008-01-30 22:03:59 +010055static 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}
Linus Torvalds1da177e2005-04-16 15:20:36 -070065
marcin.slusarz@gmail.comd652eef2008-01-30 22:03:59 +010066static 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}
Linus Torvalds1da177e2005-04-16 15:20:36 -070073
Marcin Slusarz3f2587b2008-02-08 04:20:39 -080074/* computes tag checksum */
Pekka Enberg5ca4e4b2008-10-15 12:28:03 +020075u8 udf_tag_checksum(const struct tag *t);
Marcin Slusarz3f2587b2008-02-08 04:20:39 -080076
Linus Torvalds1da177e2005-04-16 15:20:36 -070077struct dentry;
78struct inode;
79struct task_struct;
80struct buffer_head;
81struct super_block;
82
Rasmus Rohde221e5832008-04-30 17:22:06 +020083extern const struct export_operations udf_export_ops;
Arjan van de Venc5ef1c42007-02-12 00:55:40 -080084extern const struct inode_operations udf_dir_inode_operations;
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -080085extern const struct file_operations udf_dir_operations;
Arjan van de Venc5ef1c42007-02-12 00:55:40 -080086extern const struct inode_operations udf_file_inode_operations;
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -080087extern const struct file_operations udf_file_operations;
Christoph Hellwigf5e54d62006-06-28 04:26:44 -070088extern const struct address_space_operations udf_aops;
89extern const struct address_space_operations udf_adinicb_aops;
90extern const struct address_space_operations udf_symlink_aops;
Linus Torvalds1da177e2005-04-16 15:20:36 -070091
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -070092struct udf_fileident_bh {
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 struct buffer_head *sbh;
94 struct buffer_head *ebh;
95 int soffset;
96 int eoffset;
97};
98
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -070099struct udf_vds_record {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100 uint32_t block;
101 uint32_t volDescSeqNum;
102};
103
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700104struct generic_desc {
Pekka Enberg5ca4e4b2008-10-15 12:28:03 +0200105 struct tag descTag;
Cyrill Gorcunov28de7942007-07-21 04:37:18 -0700106 __le32 volDescSeqNum;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107};
108
Jan Karaff116fc2007-05-08 00:35:14 -0700109
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110/* super.c */
Joe Perchesfab3c8582010-11-10 15:46:18 -0800111
Jan Kara146bca72009-03-16 18:27:37 +0100112static inline void udf_updated_lvid(struct super_block *sb)
113{
114 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;
115
116 BUG_ON(!bh);
117 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
118 bh->b_data)->integrityType !=
119 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
Jan Kara146bca72009-03-16 18:27:37 +0100120 UDF_SB(sb)->s_lvid_dirty = 1;
121}
Jan Karad664b6a2010-10-20 18:28:46 +0200122extern u64 lvid_get_unique_id(struct super_block *sb);
Namjae Jeon3080a742011-10-23 19:28:32 +0900123struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
124 u32 meta_file_loc, u32 partition_num);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125
126/* namei.c */
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700127extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
128 struct fileIdentDesc *, struct udf_fileident_bh *,
129 uint8_t *, uint8_t *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130
131/* file.c */
John Kacur2f07a882010-05-05 15:15:39 +0200132extern long udf_ioctl(struct file *, unsigned int, unsigned long);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133/* inode.c */
Jan Kara6174c2e2014-10-09 12:52:16 +0200134extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *,
135 bool hidden_inode);
136static inline struct inode *udf_iget_special(struct super_block *sb,
137 struct kernel_lb_addr *ino)
138{
139 return __udf_iget(sb, ino, true);
140}
141static inline struct inode *udf_iget(struct super_block *sb,
142 struct kernel_lb_addr *ino)
143{
144 return __udf_iget(sb, ino, false);
145}
Jan Kara7e49b6f2010-10-22 00:30:26 +0200146extern int udf_expand_file_adinicb(struct inode *);
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700147extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
148extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
Jan Kara7e49b6f2010-10-22 00:30:26 +0200149extern int udf_setsize(struct inode *, loff_t);
Al Viro3aac2b62010-06-07 00:43:39 -0400150extern void udf_evict_inode(struct inode *);
Christoph Hellwiga9185b42010-03-05 09:21:37 +0100151extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
Jan Kara60448b12007-05-08 00:35:13 -0700152extern long udf_block_map(struct inode *, sector_t);
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700153extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
Pekka Enberg5ca4e4b2008-10-15 12:28:03 +0200154 struct kernel_lb_addr *, uint32_t *, sector_t *);
Jan Karafcea62b2015-12-23 14:21:13 +0100155extern int udf_setup_indirect_aext(struct inode *inode, int block,
156 struct extent_position *epos);
157extern int __udf_add_aext(struct inode *inode, struct extent_position *epos,
158 struct kernel_lb_addr *eloc, uint32_t elen, int inc);
Jan Kara7e49b6f2010-10-22 00:30:26 +0200159extern int udf_add_aext(struct inode *, struct extent_position *,
160 struct kernel_lb_addr *, uint32_t, int);
161extern void udf_write_aext(struct inode *, struct extent_position *,
Pekka Enberg97e961f2008-10-15 12:29:03 +0200162 struct kernel_lb_addr *, uint32_t, int);
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700163extern int8_t udf_delete_aext(struct inode *, struct extent_position,
Pekka Enberg5ca4e4b2008-10-15 12:28:03 +0200164 struct kernel_lb_addr, uint32_t);
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700165extern int8_t udf_next_aext(struct inode *, struct extent_position *,
Pekka Enberg5ca4e4b2008-10-15 12:28:03 +0200166 struct kernel_lb_addr *, uint32_t *, int);
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700167extern int8_t udf_current_aext(struct inode *, struct extent_position *,
Pekka Enberg5ca4e4b2008-10-15 12:28:03 +0200168 struct kernel_lb_addr *, uint32_t *, int);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169
170/* misc.c */
171extern struct buffer_head *udf_tgetblk(struct super_block *, int);
172extern struct buffer_head *udf_tread(struct super_block *, int);
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700173extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
174 uint32_t, uint8_t);
175extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
176 uint8_t);
177extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
178 uint32_t, uint16_t *);
179extern struct buffer_head *udf_read_ptagged(struct super_block *,
Pekka Enberg97e961f2008-10-15 12:29:03 +0200180 struct kernel_lb_addr *, uint32_t,
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700181 uint16_t *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182extern void udf_update_tag(char *, int);
183extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
184
185/* lowlevel.c */
186extern unsigned int udf_get_last_session(struct super_block *);
187extern unsigned long udf_get_last_block(struct super_block *);
188
189/* partition.c */
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700190extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
191 uint32_t);
192extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
193 uint32_t);
194extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
195 uint32_t);
196extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
197 uint32_t);
Jan Karabfb257a2008-04-08 20:37:21 +0200198extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
199 uint32_t);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200extern int udf_relocate_blocks(struct super_block *, long, long *);
201
Pekka Enberg97e961f2008-10-15 12:29:03 +0200202static inline uint32_t
203udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
204 uint32_t offset)
205{
206 return udf_get_pblock(sb, loc->logicalBlockNum,
207 loc->partitionReferenceNum, offset);
208}
209
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210/* unicode.c */
Andrew Gabbasov9293fcf2016-01-15 02:44:22 -0600211extern int udf_get_filename(struct super_block *, const uint8_t *, int,
212 uint8_t *, int);
Andrew Gabbasov525e2c52016-01-15 02:44:19 -0600213extern int udf_put_filename(struct super_block *, const uint8_t *, int,
214 uint8_t *, int);
Andrew Gabbasov9293fcf2016-01-15 02:44:22 -0600215extern int udf_CS0toUTF8(uint8_t *, int, const uint8_t *, int);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216
217/* ialloc.c */
218extern void udf_free_inode(struct inode *);
Al Viro0b93a922014-09-04 09:47:41 -0400219extern struct inode *udf_new_inode(struct inode *, umode_t);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
221/* truncate.c */
Jan Kara74584ae2007-06-16 10:16:14 -0700222extern void udf_truncate_tail_extent(struct inode *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223extern void udf_discard_prealloc(struct inode *);
224extern void udf_truncate_extents(struct inode *);
225
226/* balloc.c */
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700227extern void udf_free_blocks(struct super_block *, struct inode *,
Pekka Enberg97e961f2008-10-15 12:29:03 +0200228 struct kernel_lb_addr *, uint32_t, uint32_t);
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700229extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
230 uint32_t, uint32_t);
231extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
232 uint32_t, int *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234/* directory.c */
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700235extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
236 struct udf_fileident_bh *,
237 struct fileIdentDesc *,
238 struct extent_position *,
Pekka Enberg5ca4e4b2008-10-15 12:28:03 +0200239 struct kernel_lb_addr *, uint32_t *,
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700240 sector_t *);
241extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
242 int *offset);
Pekka Enberg5ca4e4b2008-10-15 12:28:03 +0200243extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
244extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246/* udftime.c */
Marcin Slusarz56774802008-02-10 11:25:31 +0100247extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
Pekka Enberg5ca4e4b2008-10-15 12:28:03 +0200248 struct timestamp src);
249extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250
Cyrill Gorcunovcb00ea32007-07-19 01:47:43 -0700251#endif /* __UDF_DECL_H */