Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef __LINUX_UDF_SB_H |
2 | #define __LINUX_UDF_SB_H | |
3 | ||
15aebd28 | 4 | #include <linux/mutex.h> |
f2a6cc1f | 5 | #include <linux/bitops.h> |
15aebd28 | 6 | |
1da177e4 LT |
7 | /* Since UDF 2.01 is ISO 13346 based... */ |
8 | #define UDF_SUPER_MAGIC 0x15013346 | |
9 | ||
bfb257a5 | 10 | #define UDF_MAX_READ_VERSION 0x0250 |
1da177e4 LT |
11 | #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 | |
28de7948 CG |
26 | #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 */ | |
4d6660eb PS |
28 | #define UDF_FLAG_GID_FORGET 13 |
29 | #define UDF_FLAG_GID_IGNORE 14 | |
ca76d2d8 CG |
30 | #define UDF_FLAG_UID_SET 15 |
31 | #define UDF_FLAG_GID_SET 16 | |
6da80894 MS |
32 | #define UDF_FLAG_SESSION_SET 17 |
33 | #define UDF_FLAG_LASTBLOCK_SET 18 | |
1197e4df | 34 | #define UDF_FLAG_BLOCKSIZE_SET 19 |
1da177e4 LT |
35 | |
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 | ||
15aebd28 CH |
45 | #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 | |
bfb257a5 | 51 | #define UDF_METADATA_MAP25 0x2511U |
15aebd28 | 52 | |
faa17292 | 53 | #define UDF_INVALID_MODE ((umode_t)-1) |
87bc730c | 54 | |
15aebd28 CH |
55 | #pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */ |
56 | ||
ed47a7d0 JK |
57 | #define MF_DUPLICATE_MD 0x01 |
58 | #define MF_MIRROR_FE_LOADED 0x02 | |
59 | ||
bfb257a5 JK |
60 | struct udf_meta_data { |
61 | __u32 s_meta_file_loc; | |
62 | __u32 s_mirror_file_loc; | |
63 | __u32 s_bitmap_file_loc; | |
64 | __u32 s_alloc_unit_size; | |
65 | __u16 s_align_unit_size; | |
ed47a7d0 | 66 | int s_flags; |
bfb257a5 JK |
67 | struct inode *s_metadata_fe; |
68 | struct inode *s_mirror_fe; | |
69 | struct inode *s_bitmap_fe; | |
70 | }; | |
71 | ||
15aebd28 CH |
72 | struct udf_sparing_data { |
73 | __u16 s_packet_len; | |
74 | struct buffer_head *s_spar_map[4]; | |
75 | }; | |
76 | ||
77 | struct udf_virtual_data { | |
78 | __u32 s_num_entries; | |
79 | __u16 s_start_offset; | |
80 | }; | |
81 | ||
82 | struct udf_bitmap { | |
15aebd28 | 83 | __u32 s_extPosition; |
89b1f39e | 84 | int s_nr_groups; |
c60305b5 | 85 | struct buffer_head *s_block_bitmap[0]; |
15aebd28 CH |
86 | }; |
87 | ||
88 | struct udf_part_map { | |
89 | union { | |
90 | struct udf_bitmap *s_bitmap; | |
91 | struct inode *s_table; | |
92 | } s_uspace; | |
93 | union { | |
94 | struct udf_bitmap *s_bitmap; | |
95 | struct inode *s_table; | |
96 | } s_fspace; | |
97 | __u32 s_partition_root; | |
98 | __u32 s_partition_len; | |
99 | __u16 s_partition_type; | |
100 | __u16 s_partition_num; | |
101 | union { | |
102 | struct udf_sparing_data s_sparing; | |
103 | struct udf_virtual_data s_virtual; | |
bfb257a5 | 104 | struct udf_meta_data s_metadata; |
15aebd28 CH |
105 | } s_type_specific; |
106 | __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32); | |
107 | __u16 s_volumeseqnum; | |
108 | __u16 s_partition_flags; | |
109 | }; | |
110 | ||
111 | #pragma pack() | |
112 | ||
113 | struct udf_sb_info { | |
114 | struct udf_part_map *s_partmaps; | |
115 | __u8 s_volume_ident[32]; | |
116 | ||
117 | /* Overall info */ | |
118 | __u16 s_partitions; | |
119 | __u16 s_partition; | |
120 | ||
121 | /* Sector headers */ | |
122 | __s32 s_session; | |
40346005 | 123 | __u32 s_anchor; |
15aebd28 CH |
124 | __u32 s_last_block; |
125 | ||
126 | struct buffer_head *s_lvid_bh; | |
127 | ||
128 | /* Default permissions */ | |
faa17292 | 129 | umode_t s_umask; |
c2ba138a EB |
130 | kgid_t s_gid; |
131 | kuid_t s_uid; | |
faa17292 AV |
132 | umode_t s_fmode; |
133 | umode_t s_dmode; | |
c03cad24 JK |
134 | /* Lock protecting consistency of above permission settings */ |
135 | rwlock_t s_cred_lock; | |
15aebd28 CH |
136 | |
137 | /* Root Info */ | |
138 | struct timespec s_record_time; | |
139 | ||
140 | /* Fileset Info */ | |
141 | __u16 s_serial_number; | |
142 | ||
143 | /* highest UDF revision we have recorded to this media */ | |
144 | __u16 s_udfrev; | |
145 | ||
146 | /* Miscellaneous flags */ | |
f2a6cc1f | 147 | unsigned long s_flags; |
15aebd28 CH |
148 | |
149 | /* Encoding info */ | |
150 | struct nls_table *s_nls_map; | |
151 | ||
152 | /* VAT inode */ | |
153 | struct inode *s_vat_inode; | |
154 | ||
155 | struct mutex s_alloc_mutex; | |
146bca72 JK |
156 | /* Protected by s_alloc_mutex */ |
157 | unsigned int s_lvid_dirty; | |
15aebd28 CH |
158 | }; |
159 | ||
1da177e4 LT |
160 | static inline struct udf_sb_info *UDF_SB(struct super_block *sb) |
161 | { | |
162 | return sb->s_fs_info; | |
163 | } | |
164 | ||
69d75671 | 165 | struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb); |
1da177e4 | 166 | |
883cb9d1 MS |
167 | int udf_compute_nr_groups(struct super_block *sb, u32 partition); |
168 | ||
f2a6cc1f JK |
169 | static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag) |
170 | { | |
171 | return test_bit(flag, &UDF_SB(sb)->s_flags); | |
172 | } | |
173 | ||
174 | static inline void UDF_SET_FLAG(struct super_block *sb, int flag) | |
175 | { | |
176 | set_bit(flag, &UDF_SB(sb)->s_flags); | |
177 | } | |
178 | ||
179 | static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag) | |
180 | { | |
181 | clear_bit(flag, &UDF_SB(sb)->s_flags); | |
182 | } | |
1da177e4 | 183 | |
28de7948 | 184 | #endif /* __LINUX_UDF_SB_H */ |