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1da177e4 LT |
1 | #ifndef __LINUX_UDF_SB_H |
2 | #define __LINUX_UDF_SB_H | |
3 | ||
15aebd28 CH |
4 | #include <linux/mutex.h> |
5 | ||
1da177e4 LT |
6 | /* Since UDF 2.01 is ISO 13346 based... */ |
7 | #define UDF_SUPER_MAGIC 0x15013346 | |
8 | ||
bfb257a5 | 9 | #define UDF_MAX_READ_VERSION 0x0250 |
1da177e4 LT |
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 | |
28de7948 CG |
25 | #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 */ | |
4d6660eb PS |
27 | #define UDF_FLAG_GID_FORGET 13 |
28 | #define UDF_FLAG_GID_IGNORE 14 | |
ca76d2d8 CG |
29 | #define UDF_FLAG_UID_SET 15 |
30 | #define UDF_FLAG_GID_SET 16 | |
6da80894 MS |
31 | #define UDF_FLAG_SESSION_SET 17 |
32 | #define UDF_FLAG_LASTBLOCK_SET 18 | |
1da177e4 LT |
33 | |
34 | #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001 | |
35 | #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002 | |
36 | #define UDF_PART_FLAG_FREED_BITMAP 0x0004 | |
37 | #define UDF_PART_FLAG_FREED_TABLE 0x0008 | |
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 | ||
15aebd28 CH |
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 | |
bfb257a5 | 49 | #define UDF_METADATA_MAP25 0x2511U |
15aebd28 CH |
50 | |
51 | #pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */ | |
52 | ||
bfb257a5 JK |
53 | struct udf_meta_data { |
54 | __u32 s_meta_file_loc; | |
55 | __u32 s_mirror_file_loc; | |
56 | __u32 s_bitmap_file_loc; | |
57 | __u32 s_alloc_unit_size; | |
58 | __u16 s_align_unit_size; | |
59 | __u8 s_dup_md_flag; | |
60 | struct inode *s_metadata_fe; | |
61 | struct inode *s_mirror_fe; | |
62 | struct inode *s_bitmap_fe; | |
63 | }; | |
64 | ||
15aebd28 CH |
65 | struct udf_sparing_data { |
66 | __u16 s_packet_len; | |
67 | struct buffer_head *s_spar_map[4]; | |
68 | }; | |
69 | ||
70 | struct udf_virtual_data { | |
71 | __u32 s_num_entries; | |
72 | __u16 s_start_offset; | |
73 | }; | |
74 | ||
75 | struct udf_bitmap { | |
76 | __u32 s_extLength; | |
77 | __u32 s_extPosition; | |
78 | __u16 s_nr_groups; | |
79 | struct buffer_head **s_block_bitmap; | |
80 | }; | |
81 | ||
82 | struct udf_part_map { | |
83 | union { | |
84 | struct udf_bitmap *s_bitmap; | |
85 | struct inode *s_table; | |
86 | } s_uspace; | |
87 | union { | |
88 | struct udf_bitmap *s_bitmap; | |
89 | struct inode *s_table; | |
90 | } s_fspace; | |
91 | __u32 s_partition_root; | |
92 | __u32 s_partition_len; | |
93 | __u16 s_partition_type; | |
94 | __u16 s_partition_num; | |
95 | union { | |
96 | struct udf_sparing_data s_sparing; | |
97 | struct udf_virtual_data s_virtual; | |
bfb257a5 | 98 | struct udf_meta_data s_metadata; |
15aebd28 CH |
99 | } s_type_specific; |
100 | __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32); | |
101 | __u16 s_volumeseqnum; | |
102 | __u16 s_partition_flags; | |
103 | }; | |
104 | ||
105 | #pragma pack() | |
106 | ||
107 | struct udf_sb_info { | |
108 | struct udf_part_map *s_partmaps; | |
109 | __u8 s_volume_ident[32]; | |
110 | ||
111 | /* Overall info */ | |
112 | __u16 s_partitions; | |
113 | __u16 s_partition; | |
114 | ||
115 | /* Sector headers */ | |
116 | __s32 s_session; | |
423cf6dc | 117 | __u32 s_anchor[3]; |
15aebd28 CH |
118 | __u32 s_last_block; |
119 | ||
120 | struct buffer_head *s_lvid_bh; | |
121 | ||
122 | /* Default permissions */ | |
123 | mode_t s_umask; | |
124 | gid_t s_gid; | |
125 | uid_t s_uid; | |
126 | ||
127 | /* Root Info */ | |
128 | struct timespec s_record_time; | |
129 | ||
130 | /* Fileset Info */ | |
131 | __u16 s_serial_number; | |
132 | ||
133 | /* highest UDF revision we have recorded to this media */ | |
134 | __u16 s_udfrev; | |
135 | ||
136 | /* Miscellaneous flags */ | |
137 | __u32 s_flags; | |
138 | ||
139 | /* Encoding info */ | |
140 | struct nls_table *s_nls_map; | |
141 | ||
142 | /* VAT inode */ | |
143 | struct inode *s_vat_inode; | |
144 | ||
145 | struct mutex s_alloc_mutex; | |
146 | }; | |
147 | ||
1da177e4 LT |
148 | static inline struct udf_sb_info *UDF_SB(struct super_block *sb) |
149 | { | |
150 | return sb->s_fs_info; | |
151 | } | |
152 | ||
6c79e987 | 153 | struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi); |
1da177e4 | 154 | |
883cb9d1 MS |
155 | int udf_compute_nr_groups(struct super_block *sb, u32 partition); |
156 | ||
1da177e4 LT |
157 | #define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) ) |
158 | #define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) ) | |
159 | #define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) ) | |
160 | ||
28de7948 | 161 | #endif /* __LINUX_UDF_SB_H */ |