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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * befs.h | |
3 | * | |
4 | * Copyright (C) 2001-2002 Will Dyson <will_dyson@pobox.com> | |
5 | * Copyright (C) 1999 Makoto Kato (m_kato@ga2.so-net.ne.jp) | |
6 | */ | |
7 | ||
8 | #ifndef _LINUX_BEFS_H | |
9 | #define _LINUX_BEFS_H | |
10 | ||
11 | #include "befs_fs_types.h" | |
12 | ||
13 | /* used in debug.c */ | |
14 | #define BEFS_VERSION "0.9.3" | |
15 | ||
16 | ||
17 | typedef u64 befs_blocknr_t; | |
18 | /* | |
19 | * BeFS in memory structures | |
20 | */ | |
21 | ||
09ad0eae | 22 | struct befs_mount_options { |
31aba059 EB |
23 | kgid_t gid; |
24 | kuid_t uid; | |
1da177e4 LT |
25 | int use_gid; |
26 | int use_uid; | |
27 | int debug; | |
28 | char *iocharset; | |
09ad0eae | 29 | }; |
1da177e4 | 30 | |
038428fc | 31 | struct befs_sb_info { |
1da177e4 LT |
32 | u32 magic1; |
33 | u32 block_size; | |
34 | u32 block_shift; | |
35 | int byte_order; | |
36 | befs_off_t num_blocks; | |
37 | befs_off_t used_blocks; | |
38 | u32 inode_size; | |
39 | u32 magic2; | |
40 | ||
41 | /* Allocation group information */ | |
42 | u32 blocks_per_ag; | |
43 | u32 ag_shift; | |
44 | u32 num_ags; | |
45 | ||
6ea4558f ST |
46 | /* State of the superblock */ |
47 | u32 flags; | |
48 | ||
2ac636b4 | 49 | /* Journal log entry */ |
1da177e4 LT |
50 | befs_block_run log_blocks; |
51 | befs_off_t log_start; | |
52 | befs_off_t log_end; | |
53 | ||
54 | befs_inode_addr root_dir; | |
55 | befs_inode_addr indices; | |
56 | u32 magic3; | |
57 | ||
09ad0eae | 58 | struct befs_mount_options mount_opts; |
1da177e4 | 59 | struct nls_table *nls; |
038428fc | 60 | }; |
1da177e4 | 61 | |
f8ccad21 | 62 | struct befs_inode_info { |
1da177e4 LT |
63 | u32 i_flags; |
64 | u32 i_type; | |
65 | ||
66 | befs_inode_addr i_inode_num; | |
67 | befs_inode_addr i_parent; | |
68 | befs_inode_addr i_attribute; | |
69 | ||
70 | union { | |
71 | befs_data_stream ds; | |
72 | char symlink[BEFS_SYMLINK_LEN]; | |
73 | } i_data; | |
74 | ||
75 | struct inode vfs_inode; | |
f8ccad21 | 76 | }; |
1da177e4 LT |
77 | |
78 | enum befs_err { | |
79 | BEFS_OK, | |
80 | BEFS_ERR, | |
81 | BEFS_BAD_INODE, | |
82 | BEFS_BT_END, | |
83 | BEFS_BT_EMPTY, | |
84 | BEFS_BT_MATCH, | |
672a8515 | 85 | BEFS_BT_OVERFLOW, |
1da177e4 LT |
86 | BEFS_BT_NOT_FOUND |
87 | }; | |
88 | ||
89 | ||
90 | /****************************/ | |
91 | /* debug.c */ | |
dac52fc1 | 92 | __printf(2, 3) |
1da177e4 | 93 | void befs_error(const struct super_block *sb, const char *fmt, ...); |
dac52fc1 | 94 | __printf(2, 3) |
1da177e4 | 95 | void befs_warning(const struct super_block *sb, const char *fmt, ...); |
dac52fc1 | 96 | __printf(2, 3) |
1da177e4 LT |
97 | void befs_debug(const struct super_block *sb, const char *fmt, ...); |
98 | ||
99 | void befs_dump_super_block(const struct super_block *sb, befs_super_block *); | |
100 | void befs_dump_inode(const struct super_block *sb, befs_inode *); | |
a9721f31 | 101 | void befs_dump_index_entry(const struct super_block *sb, befs_disk_btree_super *); |
1da177e4 LT |
102 | void befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead *); |
103 | /****************************/ | |
104 | ||
105 | ||
106 | /* Gets a pointer to the private portion of the super_block | |
107 | * structure from the public part | |
108 | */ | |
038428fc | 109 | static inline struct befs_sb_info * |
1da177e4 LT |
110 | BEFS_SB(const struct super_block *super) |
111 | { | |
038428fc | 112 | return (struct befs_sb_info *) super->s_fs_info; |
1da177e4 LT |
113 | } |
114 | ||
f8ccad21 | 115 | static inline struct befs_inode_info * |
1da177e4 LT |
116 | BEFS_I(const struct inode *inode) |
117 | { | |
db6172c4 | 118 | return container_of(inode, struct befs_inode_info, vfs_inode); |
1da177e4 LT |
119 | } |
120 | ||
121 | static inline befs_blocknr_t | |
22341d8f | 122 | iaddr2blockno(struct super_block *sb, const befs_inode_addr *iaddr) |
1da177e4 LT |
123 | { |
124 | return ((iaddr->allocation_group << BEFS_SB(sb)->ag_shift) + | |
125 | iaddr->start); | |
126 | } | |
127 | ||
128 | static inline befs_inode_addr | |
129 | blockno2iaddr(struct super_block *sb, befs_blocknr_t blockno) | |
130 | { | |
131 | befs_inode_addr iaddr; | |
12ecb38d | 132 | |
1da177e4 LT |
133 | iaddr.allocation_group = blockno >> BEFS_SB(sb)->ag_shift; |
134 | iaddr.start = | |
135 | blockno - (iaddr.allocation_group << BEFS_SB(sb)->ag_shift); | |
136 | iaddr.len = 1; | |
137 | ||
138 | return iaddr; | |
139 | } | |
140 | ||
141 | static inline unsigned int | |
142 | befs_iaddrs_per_block(struct super_block *sb) | |
143 | { | |
12ecb38d | 144 | return BEFS_SB(sb)->block_size / sizeof(befs_disk_inode_addr); |
1da177e4 LT |
145 | } |
146 | ||
af10b008 AV |
147 | #include "endian.h" |
148 | ||
1da177e4 | 149 | #endif /* _LINUX_BEFS_H */ |