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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __LINUX_UDF_SB_H
2#define __LINUX_UDF_SB_H
3
4/* Since UDF 2.01 is ISO 13346 based... */
5#define UDF_SUPER_MAGIC 0x15013346
6
7#define UDF_MAX_READ_VERSION 0x0201
8#define UDF_MAX_WRITE_VERSION 0x0201
9
10#define UDF_FLAG_USE_EXTENDED_FE 0
11#define UDF_VERS_USE_EXTENDED_FE 0x0200
12#define UDF_FLAG_USE_STREAMS 1
13#define UDF_VERS_USE_STREAMS 0x0200
14#define UDF_FLAG_USE_SHORT_AD 2
15#define UDF_FLAG_USE_AD_IN_ICB 3
16#define UDF_FLAG_USE_FILE_CTIME_EA 4
17#define UDF_FLAG_STRICT 5
18#define UDF_FLAG_UNDELETE 6
19#define UDF_FLAG_UNHIDE 7
20#define UDF_FLAG_VARCONV 8
21#define UDF_FLAG_NLS_MAP 9
22#define UDF_FLAG_UTF8 10
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070023#define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */
24#define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */
Phillip Susi4d6660e2006-03-07 21:55:24 -080025#define UDF_FLAG_GID_FORGET 13
26#define UDF_FLAG_GID_IGNORE 14
Cyrill Gorcunovca76d2d2007-07-31 00:39:40 -070027#define UDF_FLAG_UID_SET 15
28#define UDF_FLAG_GID_SET 16
Linus Torvalds1da177e2005-04-16 15:20:36 -070029
30#define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
31#define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
32#define UDF_PART_FLAG_FREED_BITMAP 0x0004
33#define UDF_PART_FLAG_FREED_TABLE 0x0008
34#define UDF_PART_FLAG_READ_ONLY 0x0010
35#define UDF_PART_FLAG_WRITE_ONCE 0x0020
36#define UDF_PART_FLAG_REWRITABLE 0x0040
37#define UDF_PART_FLAG_OVERWRITABLE 0x0080
38
39static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
40{
41 return sb->s_fs_info;
42}
43
44#define UDF_SB_FREE(X)\
45{\
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070046 if (UDF_SB(X)) {\
Jesper Juhlf99d49a2005-11-07 01:01:34 -080047 kfree(UDF_SB_PARTMAPS(X));\
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 UDF_SB_PARTMAPS(X) = NULL;\
49 }\
50}
51
52#define UDF_SB_ALLOC_PARTMAPS(X,Y)\
53{\
54 UDF_SB_PARTMAPS(X) = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);\
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070055 if (UDF_SB_PARTMAPS(X) != NULL) {\
Linus Torvalds1da177e2005-04-16 15:20:36 -070056 UDF_SB_NUMPARTS(X) = Y;\
57 memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);\
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070058 } else {\
Linus Torvalds1da177e2005-04-16 15:20:36 -070059 UDF_SB_NUMPARTS(X) = 0;\
60 udf_error(X, __FUNCTION__, "Unable to allocate space for %d partition maps", Y);\
61 }\
62}
63
64#define UDF_SB_ALLOC_BITMAP(X,Y,Z)\
65{\
66 int nr_groups = ((UDF_SB_PARTLEN((X),(Y)) + (sizeof(struct spaceBitmapDesc) << 3) +\
67 ((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\
68 int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
69 if (size <= PAGE_SIZE)\
70 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = kmalloc(size, GFP_KERNEL);\
71 else\
72 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = vmalloc(size);\
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070073 if (UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap != NULL) {\
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 memset(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap, 0x00, size);\
75 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap =\
76 (struct buffer_head **)(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap + 1);\
77 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070078 } else {\
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\
80 }\
81}
82
83#define UDF_SB_FREE_BITMAP(X,Y,Z)\
84{\
85 int i;\
86 int nr_groups = UDF_SB_BITMAP_NR_GROUPS(X,Y,Z);\
87 int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
Cyrill Gorcunov28de7942007-07-21 04:37:18 -070088 for (i = 0; i < nr_groups; i++) {\
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 if (UDF_SB_BITMAP(X,Y,Z,i))\
Jan Kara3bf25cb2007-05-08 00:35:16 -070090 brelse(UDF_SB_BITMAP(X,Y,Z,i));\
Linus Torvalds1da177e2005-04-16 15:20:36 -070091 }\
92 if (size <= PAGE_SIZE)\
93 kfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
94 else\
95 vfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
96}
97
98#define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
99#define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
100#define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
101
102#define UDF_UPDATE_UDFREV(X,Y) ( ((Y) > UDF_SB_UDFREV(X)) ? UDF_SB_UDFREV(X) = (Y) : UDF_SB_UDFREV(X) )
103
104#define UDF_SB_PARTMAPS(X) ( UDF_SB(X)->s_partmaps )
105#define UDF_SB_PARTTYPE(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_type )
106#define UDF_SB_PARTROOT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_root )
107#define UDF_SB_PARTLEN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_len )
108#define UDF_SB_PARTVSN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_volumeseqnum )
109#define UDF_SB_PARTNUM(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_num )
110#define UDF_SB_TYPESPAR(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_sparing )
111#define UDF_SB_TYPEVIRT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_virtual )
112#define UDF_SB_PARTFUNC(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_func )
113#define UDF_SB_PARTFLAGS(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_flags )
114#define UDF_SB_BITMAP(X,Y,Z,I) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap[I] )
115#define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups )
116
117#define UDF_SB_VOLIDENT(X) ( UDF_SB(X)->s_volident )
118#define UDF_SB_NUMPARTS(X) ( UDF_SB(X)->s_partitions )
119#define UDF_SB_PARTITION(X) ( UDF_SB(X)->s_partition )
120#define UDF_SB_SESSION(X) ( UDF_SB(X)->s_session )
121#define UDF_SB_ANCHOR(X) ( UDF_SB(X)->s_anchor )
122#define UDF_SB_LASTBLOCK(X) ( UDF_SB(X)->s_lastblock )
123#define UDF_SB_LVIDBH(X) ( UDF_SB(X)->s_lvidbh )
124#define UDF_SB_LVID(X) ( (struct logicalVolIntegrityDesc *)UDF_SB_LVIDBH(X)->b_data )
125#define UDF_SB_LVIDIU(X) ( (struct logicalVolIntegrityDescImpUse *)&(UDF_SB_LVID(X)->impUse[le32_to_cpu(UDF_SB_LVID(X)->numOfPartitions) * 2 * sizeof(uint32_t)/sizeof(uint8_t)]) )
126
127#define UDF_SB_UMASK(X) ( UDF_SB(X)->s_umask )
128#define UDF_SB_GID(X) ( UDF_SB(X)->s_gid )
129#define UDF_SB_UID(X) ( UDF_SB(X)->s_uid )
130#define UDF_SB_RECORDTIME(X) ( UDF_SB(X)->s_recordtime )
131#define UDF_SB_SERIALNUM(X) ( UDF_SB(X)->s_serialnum )
132#define UDF_SB_UDFREV(X) ( UDF_SB(X)->s_udfrev )
133#define UDF_SB_FLAGS(X) ( UDF_SB(X)->s_flags )
134#define UDF_SB_VAT(X) ( UDF_SB(X)->s_vat )
135
Cyrill Gorcunov28de7942007-07-21 04:37:18 -0700136#endif /* __LINUX_UDF_SB_H */