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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __LINUX_UDF_SB_H
2#define __LINUX_UDF_SB_H
3
Christoph Hellwig15aebd22008-02-22 12:39:12 +01004#include <linux/mutex.h>
5
Linus Torvalds1da177e2005-04-16 15:20:36 -07006/* Since UDF 2.01 is ISO 13346 based... */
7#define UDF_SUPER_MAGIC 0x15013346
8
Jan Karabfb257a2008-04-08 20:37:21 +02009#define UDF_MAX_READ_VERSION 0x0250
Linus Torvalds1da177e2005-04-16 15:20:36 -070010#define UDF_MAX_WRITE_VERSION 0x0201
11
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
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070025#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 */
Phillip Susi4d6660e2006-03-07 21:55:24 -080027#define UDF_FLAG_GID_FORGET 13
28#define UDF_FLAG_GID_IGNORE 14
Cyrill Gorcunovca76d2d2007-07-31 00:39:40 -070029#define UDF_FLAG_UID_SET 15
30#define UDF_FLAG_GID_SET 16
Miklos Szeredi6da80892008-02-08 04:21:50 -080031#define UDF_FLAG_SESSION_SET 17
32#define UDF_FLAG_LASTBLOCK_SET 18
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
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
42
Christoph Hellwig15aebd22008-02-22 12:39:12 +010043#define UDF_MAX_BLOCK_LOADED 8
44
45#define UDF_TYPE1_MAP15 0x1511U
46#define UDF_VIRTUAL_MAP15 0x1512U
47#define UDF_VIRTUAL_MAP20 0x2012U
48#define UDF_SPARABLE_MAP15 0x1522U
Jan Karabfb257a2008-04-08 20:37:21 +020049#define UDF_METADATA_MAP25 0x2511U
Christoph Hellwig15aebd22008-02-22 12:39:12 +010050
51#pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */
52
Jan Karabfb257a2008-04-08 20:37:21 +020053struct udf_meta_data {
54 __u32 s_meta_file_loc;
55 __u32 s_mirror_file_loc;
56 __u32 s_bitmap_file_loc;
57 __u32 s_alloc_unit_size;
58 __u16 s_align_unit_size;
59 __u8 s_dup_md_flag;
60 struct inode *s_metadata_fe;
61 struct inode *s_mirror_fe;
62 struct inode *s_bitmap_fe;
63};
64
Christoph Hellwig15aebd22008-02-22 12:39:12 +010065struct udf_sparing_data {
66 __u16 s_packet_len;
67 struct buffer_head *s_spar_map[4];
68};
69
70struct udf_virtual_data {
71 __u32 s_num_entries;
72 __u16 s_start_offset;
73};
74
75struct udf_bitmap {
76 __u32 s_extLength;
77 __u32 s_extPosition;
78 __u16 s_nr_groups;
79 struct buffer_head **s_block_bitmap;
80};
81
82struct udf_part_map {
83 union {
84 struct udf_bitmap *s_bitmap;
85 struct inode *s_table;
86 } s_uspace;
87 union {
88 struct udf_bitmap *s_bitmap;
89 struct inode *s_table;
90 } s_fspace;
91 __u32 s_partition_root;
92 __u32 s_partition_len;
93 __u16 s_partition_type;
94 __u16 s_partition_num;
95 union {
96 struct udf_sparing_data s_sparing;
97 struct udf_virtual_data s_virtual;
Jan Karabfb257a2008-04-08 20:37:21 +020098 struct udf_meta_data s_metadata;
Christoph Hellwig15aebd22008-02-22 12:39:12 +010099 } s_type_specific;
100 __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
101 __u16 s_volumeseqnum;
102 __u16 s_partition_flags;
103};
104
105#pragma pack()
106
107struct udf_sb_info {
108 struct udf_part_map *s_partmaps;
109 __u8 s_volume_ident[32];
110
111 /* Overall info */
112 __u16 s_partitions;
113 __u16 s_partition;
114
115 /* Sector headers */
116 __s32 s_session;
Jan Kara423cf6d2008-04-07 15:59:23 +0200117 __u32 s_anchor[3];
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100118 __u32 s_last_block;
119
120 struct buffer_head *s_lvid_bh;
121
122 /* Default permissions */
123 mode_t s_umask;
124 gid_t s_gid;
125 uid_t s_uid;
126
127 /* Root Info */
128 struct timespec s_record_time;
129
130 /* Fileset Info */
131 __u16 s_serial_number;
132
133 /* highest UDF revision we have recorded to this media */
134 __u16 s_udfrev;
135
136 /* Miscellaneous flags */
137 __u32 s_flags;
138
139 /* Encoding info */
140 struct nls_table *s_nls_map;
141
142 /* VAT inode */
143 struct inode *s_vat_inode;
144
145 struct mutex s_alloc_mutex;
146};
147
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
149{
150 return sb->s_fs_info;
151}
152
Marcin Slusarz6c79e982008-02-08 04:20:30 -0800153struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154
Marcin Slusarz883cb9d2008-02-08 04:20:34 -0800155int udf_compute_nr_groups(struct super_block *sb, u32 partition);
156
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157#define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
158#define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
159#define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
160
Cyrill Gorcunov28de7942007-07-21 04:37:18 -0700161#endif /* __LINUX_UDF_SB_H */