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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
Clemens Ladisch1197e4d2009-03-11 15:57:47 +010033#define UDF_FLAG_BLOCKSIZE_SET 19
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
35#define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
36#define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
37#define UDF_PART_FLAG_FREED_BITMAP 0x0004
38#define UDF_PART_FLAG_FREED_TABLE 0x0008
39#define UDF_PART_FLAG_READ_ONLY 0x0010
40#define UDF_PART_FLAG_WRITE_ONCE 0x0020
41#define UDF_PART_FLAG_REWRITABLE 0x0040
42#define UDF_PART_FLAG_OVERWRITABLE 0x0080
43
Christoph Hellwig15aebd22008-02-22 12:39:12 +010044#define UDF_MAX_BLOCK_LOADED 8
45
46#define UDF_TYPE1_MAP15 0x1511U
47#define UDF_VIRTUAL_MAP15 0x1512U
48#define UDF_VIRTUAL_MAP20 0x2012U
49#define UDF_SPARABLE_MAP15 0x1522U
Jan Karabfb257a2008-04-08 20:37:21 +020050#define UDF_METADATA_MAP25 0x2511U
Christoph Hellwig15aebd22008-02-22 12:39:12 +010051
Marcin Slusarz87bc7302008-12-02 13:40:11 +010052#define UDF_INVALID_MODE ((mode_t)-1)
53
Christoph Hellwig15aebd22008-02-22 12:39:12 +010054#pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */
55
Jan Karabfb257a2008-04-08 20:37:21 +020056struct udf_meta_data {
57 __u32 s_meta_file_loc;
58 __u32 s_mirror_file_loc;
59 __u32 s_bitmap_file_loc;
60 __u32 s_alloc_unit_size;
61 __u16 s_align_unit_size;
62 __u8 s_dup_md_flag;
63 struct inode *s_metadata_fe;
64 struct inode *s_mirror_fe;
65 struct inode *s_bitmap_fe;
66};
67
Christoph Hellwig15aebd22008-02-22 12:39:12 +010068struct udf_sparing_data {
69 __u16 s_packet_len;
70 struct buffer_head *s_spar_map[4];
71};
72
73struct udf_virtual_data {
74 __u32 s_num_entries;
75 __u16 s_start_offset;
76};
77
78struct udf_bitmap {
79 __u32 s_extLength;
80 __u32 s_extPosition;
81 __u16 s_nr_groups;
82 struct buffer_head **s_block_bitmap;
83};
84
85struct udf_part_map {
86 union {
87 struct udf_bitmap *s_bitmap;
88 struct inode *s_table;
89 } s_uspace;
90 union {
91 struct udf_bitmap *s_bitmap;
92 struct inode *s_table;
93 } s_fspace;
94 __u32 s_partition_root;
95 __u32 s_partition_len;
96 __u16 s_partition_type;
97 __u16 s_partition_num;
98 union {
99 struct udf_sparing_data s_sparing;
100 struct udf_virtual_data s_virtual;
Jan Karabfb257a2008-04-08 20:37:21 +0200101 struct udf_meta_data s_metadata;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100102 } s_type_specific;
103 __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
104 __u16 s_volumeseqnum;
105 __u16 s_partition_flags;
106};
107
108#pragma pack()
109
110struct udf_sb_info {
111 struct udf_part_map *s_partmaps;
112 __u8 s_volume_ident[32];
113
114 /* Overall info */
115 __u16 s_partitions;
116 __u16 s_partition;
117
118 /* Sector headers */
119 __s32 s_session;
Jan Kara40346002009-03-19 16:21:38 +0100120 __u32 s_anchor;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100121 __u32 s_last_block;
122
123 struct buffer_head *s_lvid_bh;
124
125 /* Default permissions */
126 mode_t s_umask;
127 gid_t s_gid;
128 uid_t s_uid;
Marcin Slusarz7ac9bcd2008-11-16 20:52:19 +0100129 mode_t s_fmode;
130 mode_t s_dmode;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100131
132 /* Root Info */
133 struct timespec s_record_time;
134
135 /* Fileset Info */
136 __u16 s_serial_number;
137
138 /* highest UDF revision we have recorded to this media */
139 __u16 s_udfrev;
140
141 /* Miscellaneous flags */
142 __u32 s_flags;
143
144 /* Encoding info */
145 struct nls_table *s_nls_map;
146
147 /* VAT inode */
148 struct inode *s_vat_inode;
149
150 struct mutex s_alloc_mutex;
Jan Kara146bca72009-03-16 18:27:37 +0100151 /* Protected by s_alloc_mutex */
152 unsigned int s_lvid_dirty;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100153};
154
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
156{
157 return sb->s_fs_info;
158}
159
Marcin Slusarz6c79e982008-02-08 04:20:30 -0800160struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161
Marcin Slusarz883cb9d2008-02-08 04:20:34 -0800162int udf_compute_nr_groups(struct super_block *sb, u32 partition);
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164#define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
165#define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
166#define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
167
Cyrill Gorcunov28de7942007-07-21 04:37:18 -0700168#endif /* __LINUX_UDF_SB_H */