1
2#ifndef __LINUX_UDF_SB_H
3#define __LINUX_UDF_SB_H
4
5#include <linux/mutex.h>
6#include <linux/bitops.h>
7#include <linux/magic.h>
8
9#define UDF_MAX_READ_VERSION 0x0250
10#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
25#define UDF_FLAG_UID_FORGET 11
26#define UDF_FLAG_GID_FORGET 12
27#define UDF_FLAG_UID_SET 13
28#define UDF_FLAG_GID_SET 14
29#define UDF_FLAG_SESSION_SET 15
30#define UDF_FLAG_LASTBLOCK_SET 16
31#define UDF_FLAG_BLOCKSIZE_SET 17
32#define UDF_FLAG_INCONSISTENT 18
33#define UDF_FLAG_RW_INCOMPAT 19
34
35
36#define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
37#define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
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
43#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
49#define UDF_METADATA_MAP25 0x2511U
50
51#define UDF_INVALID_MODE ((umode_t)-1)
52
53#define MF_DUPLICATE_MD 0x01
54#define MF_MIRROR_FE_LOADED 0x02
55
56struct 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
63
64
65
66 __u16 s_phys_partition_ref;
67 int s_flags;
68 struct inode *s_metadata_fe;
69 struct inode *s_mirror_fe;
70 struct inode *s_bitmap_fe;
71};
72
73struct udf_sparing_data {
74 __u16 s_packet_len;
75 struct buffer_head *s_spar_map[4];
76};
77
78struct udf_virtual_data {
79 __u32 s_num_entries;
80 __u16 s_start_offset;
81};
82
83struct udf_bitmap {
84 __u32 s_extPosition;
85 int s_nr_groups;
86 struct buffer_head *s_block_bitmap[];
87};
88
89struct udf_part_map {
90 union {
91 struct udf_bitmap *s_bitmap;
92 struct inode *s_table;
93 } s_uspace;
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;
101 struct udf_meta_data s_metadata;
102 } 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
115 __u16 s_partitions;
116 __u16 s_partition;
117
118
119 __s32 s_session;
120 __u32 s_anchor;
121 __u32 s_last_block;
122
123 struct buffer_head *s_lvid_bh;
124
125
126 umode_t s_umask;
127 kgid_t s_gid;
128 kuid_t s_uid;
129 umode_t s_fmode;
130 umode_t s_dmode;
131
132 rwlock_t s_cred_lock;
133
134
135 struct timespec64 s_record_time;
136
137
138 __u16 s_serial_number;
139
140
141 __u16 s_udfrev;
142
143
144 unsigned long s_flags;
145
146
147 struct nls_table *s_nls_map;
148
149
150 struct inode *s_vat_inode;
151
152 struct mutex s_alloc_mutex;
153
154 unsigned int s_lvid_dirty;
155};
156
157static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
158{
159 return sb->s_fs_info;
160}
161
162struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);
163
164int udf_compute_nr_groups(struct super_block *sb, u32 partition);
165
166static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
167{
168 return test_bit(flag, &UDF_SB(sb)->s_flags);
169}
170
171static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
172{
173 set_bit(flag, &UDF_SB(sb)->s_flags);
174}
175
176static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
177{
178 clear_bit(flag, &UDF_SB(sb)->s_flags);
179}
180
181#endif
182
