1 #ifndef __LINUX_UDF_SB_H
2 #define __LINUX_UDF_SB_H
4 #include <linux/mutex.h>
6 /* Since UDF 2.01 is ISO 13346 based... */
7 #define UDF_SUPER_MAGIC 0x15013346
9 #define UDF_MAX_READ_VERSION 0x0250
10 #define UDF_MAX_WRITE_VERSION 0x0201
12 #define UDF_FLAG_USE_EXTENDED_FE 0
13 #define UDF_VERS_USE_EXTENDED_FE 0x0200
14 #define UDF_FLAG_USE_STREAMS 1
15 #define UDF_VERS_USE_STREAMS 0x0200
16 #define UDF_FLAG_USE_SHORT_AD 2
17 #define UDF_FLAG_USE_AD_IN_ICB 3
18 #define UDF_FLAG_USE_FILE_CTIME_EA 4
19 #define UDF_FLAG_STRICT 5
20 #define UDF_FLAG_UNDELETE 6
21 #define UDF_FLAG_UNHIDE 7
22 #define UDF_FLAG_VARCONV 8
23 #define UDF_FLAG_NLS_MAP 9
24 #define UDF_FLAG_UTF8 10
25 #define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */
26 #define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */
27 #define UDF_FLAG_GID_FORGET 13
28 #define UDF_FLAG_GID_IGNORE 14
29 #define UDF_FLAG_UID_SET 15
30 #define UDF_FLAG_GID_SET 16
31 #define UDF_FLAG_SESSION_SET 17
32 #define UDF_FLAG_LASTBLOCK_SET 18
34 #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
35 #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
36 #define UDF_PART_FLAG_FREED_BITMAP 0x0004
37 #define UDF_PART_FLAG_FREED_TABLE 0x0008
38 #define UDF_PART_FLAG_READ_ONLY 0x0010
39 #define UDF_PART_FLAG_WRITE_ONCE 0x0020
40 #define UDF_PART_FLAG_REWRITABLE 0x0040
41 #define UDF_PART_FLAG_OVERWRITABLE 0x0080
43 #define UDF_MAX_BLOCK_LOADED 8
45 #define UDF_TYPE1_MAP15 0x1511U
46 #define UDF_VIRTUAL_MAP15 0x1512U
47 #define UDF_VIRTUAL_MAP20 0x2012U
48 #define UDF_SPARABLE_MAP15 0x1522U
49 #define UDF_METADATA_MAP25 0x2511U
51 #define UDF_INVALID_MODE ((mode_t)-1)
53 #pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */
55 struct udf_meta_data
{
56 __u32 s_meta_file_loc
;
57 __u32 s_mirror_file_loc
;
58 __u32 s_bitmap_file_loc
;
59 __u32 s_alloc_unit_size
;
60 __u16 s_align_unit_size
;
62 struct inode
*s_metadata_fe
;
63 struct inode
*s_mirror_fe
;
64 struct inode
*s_bitmap_fe
;
67 struct udf_sparing_data
{
69 struct buffer_head
*s_spar_map
[4];
72 struct udf_virtual_data
{
81 struct buffer_head
**s_block_bitmap
;
86 struct udf_bitmap
*s_bitmap
;
87 struct inode
*s_table
;
90 struct udf_bitmap
*s_bitmap
;
91 struct inode
*s_table
;
93 __u32 s_partition_root
;
94 __u32 s_partition_len
;
95 __u16 s_partition_type
;
96 __u16 s_partition_num
;
98 struct udf_sparing_data s_sparing
;
99 struct udf_virtual_data s_virtual
;
100 struct udf_meta_data s_metadata
;
102 __u32 (*s_partition_func
)(struct super_block
*, __u32
, __u16
, __u32
);
103 __u16 s_volumeseqnum
;
104 __u16 s_partition_flags
;
110 struct udf_part_map
*s_partmaps
;
111 __u8 s_volume_ident
[32];
122 struct buffer_head
*s_lvid_bh
;
124 /* Default permissions */
132 struct timespec s_record_time
;
135 __u16 s_serial_number
;
137 /* highest UDF revision we have recorded to this media */
140 /* Miscellaneous flags */
144 struct nls_table
*s_nls_map
;
147 struct inode
*s_vat_inode
;
149 struct mutex s_alloc_mutex
;
152 static inline struct udf_sb_info
*UDF_SB(struct super_block
*sb
)
154 return sb
->s_fs_info
;
157 struct logicalVolIntegrityDescImpUse
*udf_sb_lvidiu(struct udf_sb_info
*sbi
);
159 int udf_compute_nr_groups(struct super_block
*sb
, u32 partition
);
161 #define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
162 #define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
163 #define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
165 #endif /* __LINUX_UDF_SB_H */