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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>
Jan Karaf2a6cc12010-10-20 17:25:59 +02005#include <linux/bitops.h>
Christoph Hellwig15aebd22008-02-22 12:39:12 +01006
Linus Torvalds1da177e2005-04-16 15:20:36 -07007/* Since UDF 2.01 is ISO 13346 based... */
8#define UDF_SUPER_MAGIC 0x15013346
9
Jan Karabfb257a2008-04-08 20:37:21 +020010#define UDF_MAX_READ_VERSION 0x0250
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#define UDF_MAX_WRITE_VERSION 0x0201
12
13#define UDF_FLAG_USE_EXTENDED_FE 0
14#define UDF_VERS_USE_EXTENDED_FE 0x0200
15#define UDF_FLAG_USE_STREAMS 1
16#define UDF_VERS_USE_STREAMS 0x0200
17#define UDF_FLAG_USE_SHORT_AD 2
18#define UDF_FLAG_USE_AD_IN_ICB 3
19#define UDF_FLAG_USE_FILE_CTIME_EA 4
20#define UDF_FLAG_STRICT 5
21#define UDF_FLAG_UNDELETE 6
22#define UDF_FLAG_UNHIDE 7
23#define UDF_FLAG_VARCONV 8
24#define UDF_FLAG_NLS_MAP 9
25#define UDF_FLAG_UTF8 10
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070026#define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */
27#define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */
Phillip Susi4d6660e2006-03-07 21:55:24 -080028#define UDF_FLAG_GID_FORGET 13
29#define UDF_FLAG_GID_IGNORE 14
Cyrill Gorcunovca76d2d2007-07-31 00:39:40 -070030#define UDF_FLAG_UID_SET 15
31#define UDF_FLAG_GID_SET 16
Miklos Szeredi6da80892008-02-08 04:21:50 -080032#define UDF_FLAG_SESSION_SET 17
33#define UDF_FLAG_LASTBLOCK_SET 18
Clemens Ladisch1197e4d2009-03-11 15:57:47 +010034#define UDF_FLAG_BLOCKSIZE_SET 19
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
36#define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
37#define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
38#define UDF_PART_FLAG_FREED_BITMAP 0x0004
39#define UDF_PART_FLAG_FREED_TABLE 0x0008
40#define UDF_PART_FLAG_READ_ONLY 0x0010
41#define UDF_PART_FLAG_WRITE_ONCE 0x0020
42#define UDF_PART_FLAG_REWRITABLE 0x0040
43#define UDF_PART_FLAG_OVERWRITABLE 0x0080
44
Christoph Hellwig15aebd22008-02-22 12:39:12 +010045#define UDF_MAX_BLOCK_LOADED 8
46
47#define UDF_TYPE1_MAP15 0x1511U
48#define UDF_VIRTUAL_MAP15 0x1512U
49#define UDF_VIRTUAL_MAP20 0x2012U
50#define UDF_SPARABLE_MAP15 0x1522U
Jan Karabfb257a2008-04-08 20:37:21 +020051#define UDF_METADATA_MAP25 0x2511U
Christoph Hellwig15aebd22008-02-22 12:39:12 +010052
Marcin Slusarz87bc7302008-12-02 13:40:11 +010053#define UDF_INVALID_MODE ((mode_t)-1)
54
Christoph Hellwig15aebd22008-02-22 12:39:12 +010055#pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */
56
Jan Karabfb257a2008-04-08 20:37:21 +020057struct udf_meta_data {
58 __u32 s_meta_file_loc;
59 __u32 s_mirror_file_loc;
60 __u32 s_bitmap_file_loc;
61 __u32 s_alloc_unit_size;
62 __u16 s_align_unit_size;
63 __u8 s_dup_md_flag;
64 struct inode *s_metadata_fe;
65 struct inode *s_mirror_fe;
66 struct inode *s_bitmap_fe;
67};
68
Christoph Hellwig15aebd22008-02-22 12:39:12 +010069struct udf_sparing_data {
70 __u16 s_packet_len;
71 struct buffer_head *s_spar_map[4];
72};
73
74struct udf_virtual_data {
75 __u32 s_num_entries;
76 __u16 s_start_offset;
77};
78
79struct udf_bitmap {
80 __u32 s_extLength;
81 __u32 s_extPosition;
82 __u16 s_nr_groups;
83 struct buffer_head **s_block_bitmap;
84};
85
86struct udf_part_map {
87 union {
88 struct udf_bitmap *s_bitmap;
89 struct inode *s_table;
90 } s_uspace;
91 union {
92 struct udf_bitmap *s_bitmap;
93 struct inode *s_table;
94 } s_fspace;
95 __u32 s_partition_root;
96 __u32 s_partition_len;
97 __u16 s_partition_type;
98 __u16 s_partition_num;
99 union {
100 struct udf_sparing_data s_sparing;
101 struct udf_virtual_data s_virtual;
Jan Karabfb257a2008-04-08 20:37:21 +0200102 struct udf_meta_data s_metadata;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100103 } s_type_specific;
104 __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
105 __u16 s_volumeseqnum;
106 __u16 s_partition_flags;
107};
108
109#pragma pack()
110
111struct udf_sb_info {
112 struct udf_part_map *s_partmaps;
113 __u8 s_volume_ident[32];
114
115 /* Overall info */
116 __u16 s_partitions;
117 __u16 s_partition;
118
119 /* Sector headers */
120 __s32 s_session;
Jan Kara40346002009-03-19 16:21:38 +0100121 __u32 s_anchor;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100122 __u32 s_last_block;
123
124 struct buffer_head *s_lvid_bh;
125
126 /* Default permissions */
127 mode_t s_umask;
128 gid_t s_gid;
129 uid_t s_uid;
Marcin Slusarz7ac9bcd52008-11-16 20:52:19 +0100130 mode_t s_fmode;
131 mode_t s_dmode;
Jan Karac03cad22010-10-20 22:17:28 +0200132 /* Lock protecting consistency of above permission settings */
133 rwlock_t s_cred_lock;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100134
135 /* Root Info */
136 struct timespec s_record_time;
137
138 /* Fileset Info */
139 __u16 s_serial_number;
140
141 /* highest UDF revision we have recorded to this media */
142 __u16 s_udfrev;
143
144 /* Miscellaneous flags */
Jan Karaf2a6cc12010-10-20 17:25:59 +0200145 unsigned long s_flags;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100146
147 /* Encoding info */
148 struct nls_table *s_nls_map;
149
150 /* VAT inode */
151 struct inode *s_vat_inode;
152
153 struct mutex s_alloc_mutex;
Jan Kara146bca72009-03-16 18:27:37 +0100154 /* Protected by s_alloc_mutex */
155 unsigned int s_lvid_dirty;
Christoph Hellwig15aebd22008-02-22 12:39:12 +0100156};
157
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
159{
160 return sb->s_fs_info;
161}
162
Marcin Slusarz6c79e982008-02-08 04:20:30 -0800163struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164
Marcin Slusarz883cb9d2008-02-08 04:20:34 -0800165int udf_compute_nr_groups(struct super_block *sb, u32 partition);
166
Jan Karaf2a6cc12010-10-20 17:25:59 +0200167static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
168{
169 return test_bit(flag, &UDF_SB(sb)->s_flags);
170}
171
172static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
173{
174 set_bit(flag, &UDF_SB(sb)->s_flags);
175}
176
177static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
178{
179 clear_bit(flag, &UDF_SB(sb)->s_flags);
180}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181
Cyrill Gorcunov28de7942007-07-21 04:37:18 -0700182#endif /* __LINUX_UDF_SB_H */