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1/* SPDX-License-Identifier: GPL-2.0 */
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_UID_FORGET 11 /* save -1 for uid to disk */
24#define UDF_FLAG_GID_FORGET 12
25#define UDF_FLAG_UID_SET 13
26#define UDF_FLAG_GID_SET 14
27#define UDF_FLAG_SESSION_SET 15
28#define UDF_FLAG_LASTBLOCK_SET 16
29#define UDF_FLAG_BLOCKSIZE_SET 17
30#define UDF_FLAG_INCONSISTENT 18
31#define UDF_FLAG_RW_INCOMPAT 19 /* Set when we find RW incompatible
32 * feature */
33
34#define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
35#define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
36#define UDF_PART_FLAG_READ_ONLY 0x0010
37#define UDF_PART_FLAG_WRITE_ONCE 0x0020
38#define UDF_PART_FLAG_REWRITABLE 0x0040
39#define UDF_PART_FLAG_OVERWRITABLE 0x0080
40
41#define UDF_MAX_BLOCK_LOADED 8
42
43#define UDF_TYPE1_MAP15 0x1511U
44#define UDF_VIRTUAL_MAP15 0x1512U
45#define UDF_VIRTUAL_MAP20 0x2012U
46#define UDF_SPARABLE_MAP15 0x1522U
47#define UDF_METADATA_MAP25 0x2511U
48
49#define UDF_INVALID_MODE ((umode_t)-1)
50
51#define MF_DUPLICATE_MD 0x01
52#define MF_MIRROR_FE_LOADED 0x02
53
54struct udf_meta_data {
55 __u32 s_meta_file_loc;
56 __u32 s_mirror_file_loc;
57 __u32 s_bitmap_file_loc;
58 __u32 s_alloc_unit_size;
59 __u16 s_align_unit_size;
60 /*
61 * Partition Reference Number of the associated physical / sparable
62 * partition
63 */
64 __u16 s_phys_partition_ref;
65 int s_flags;
66 struct inode *s_metadata_fe;
67 struct inode *s_mirror_fe;
68 struct inode *s_bitmap_fe;
69};
70
71struct udf_sparing_data {
72 __u16 s_packet_len;
73 struct buffer_head *s_spar_map[4];
74};
75
76struct udf_virtual_data {
77 __u32 s_num_entries;
78 __u16 s_start_offset;
79};
80
81struct udf_bitmap {
82 __u32 s_extPosition;
83 int s_nr_groups;
84 struct buffer_head *s_block_bitmap[];
85};
86
87struct udf_part_map {
88 union {
89 struct udf_bitmap *s_bitmap;
90 struct inode *s_table;
91 } s_uspace;
92 __u32 s_partition_root;
93 __u32 s_partition_len;
94 __u16 s_partition_type;
95 __u16 s_partition_num;
96 union {
97 struct udf_sparing_data s_sparing;
98 struct udf_virtual_data s_virtual;
99 struct udf_meta_data s_metadata;
100 } s_type_specific;
101 __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
102 __u16 s_volumeseqnum;
103 __u16 s_partition_flags;
104};
105
106#pragma pack()
107
108struct udf_sb_info {
109 struct udf_part_map *s_partmaps;
110 __u8 s_volume_ident[32];
111
112 /* Overall info */
113 __u16 s_partitions;
114 __u16 s_partition;
115
116 /* Sector headers */
117 __s32 s_session;
118 __u32 s_anchor;
119 __u32 s_last_block;
120
121 struct buffer_head *s_lvid_bh;
122
123 /* Default permissions */
124 umode_t s_umask;
125 kgid_t s_gid;
126 kuid_t s_uid;
127 umode_t s_fmode;
128 umode_t s_dmode;
129 /* Lock protecting consistency of above permission settings */
130 rwlock_t s_cred_lock;
131
132 /* Root Info */
133 struct timespec64 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 unsigned long 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;
151 /* Protected by s_alloc_mutex */
152 unsigned int s_lvid_dirty;
153};
154
155static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
156{
157 return sb->s_fs_info;
158}
159
160struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);
161
162int udf_compute_nr_groups(struct super_block *sb, u32 partition);
163
164static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
165{
166 return test_bit(flag, &UDF_SB(sb)->s_flags);
167}
168
169static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
170{
171 set_bit(flag, &UDF_SB(sb)->s_flags);
172}
173
174static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
175{
176 clear_bit(flag, &UDF_SB(sb)->s_flags);
177}
178
179#endif /* __LINUX_UDF_SB_H */
1/* SPDX-License-Identifier: GPL-2.0 */
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 /* save -1 for uid to disk */
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 /* Set when we find RW incompatible
34 * feature */
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 * Partition Reference Number of the associated physical / sparable
64 * partition
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[0];
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 /* Overall info */
115 __u16 s_partitions;
116 __u16 s_partition;
117
118 /* Sector headers */
119 __s32 s_session;
120 __u32 s_anchor;
121 __u32 s_last_block;
122
123 struct buffer_head *s_lvid_bh;
124
125 /* Default permissions */
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 /* Lock protecting consistency of above permission settings */
132 rwlock_t s_cred_lock;
133
134 /* Root Info */
135 struct timespec64 s_record_time;
136
137 /* Fileset Info */
138 __u16 s_serial_number;
139
140 /* highest UDF revision we have recorded to this media */
141 __u16 s_udfrev;
142
143 /* Miscellaneous flags */
144 unsigned long s_flags;
145
146 /* Encoding info */
147 struct nls_table *s_nls_map;
148
149 /* VAT inode */
150 struct inode *s_vat_inode;
151
152 struct mutex s_alloc_mutex;
153 /* Protected by s_alloc_mutex */
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 /* __LINUX_UDF_SB_H */