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1da177e4 LT |
1 | #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 | |
28de7948 CG |
23 | #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 */ | |
4d6660eb PS |
25 | #define UDF_FLAG_GID_FORGET 13 |
26 | #define UDF_FLAG_GID_IGNORE 14 | |
ca76d2d8 CG |
27 | #define UDF_FLAG_UID_SET 15 |
28 | #define UDF_FLAG_GID_SET 16 | |
1da177e4 LT |
29 | |
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 | ||
39 | static 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 | {\ | |
28de7948 | 46 | if (UDF_SB(X)) {\ |
f99d49ad | 47 | kfree(UDF_SB_PARTMAPS(X));\ |
1da177e4 LT |
48 | 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);\ | |
28de7948 | 55 | if (UDF_SB_PARTMAPS(X) != NULL) {\ |
1da177e4 LT |
56 | UDF_SB_NUMPARTS(X) = Y;\ |
57 | memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);\ | |
28de7948 | 58 | } else {\ |
1da177e4 LT |
59 | 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);\ | |
28de7948 | 73 | if (UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap != NULL) {\ |
1da177e4 LT |
74 | 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;\ | |
28de7948 | 78 | } else {\ |
1da177e4 LT |
79 | 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);\ | |
28de7948 | 88 | for (i = 0; i < nr_groups; i++) {\ |
1da177e4 | 89 | if (UDF_SB_BITMAP(X,Y,Z,i))\ |
3bf25cb4 | 90 | brelse(UDF_SB_BITMAP(X,Y,Z,i));\ |
1da177e4 LT |
91 | }\ |
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 | ||
28de7948 | 136 | #endif /* __LINUX_UDF_SB_H */ |