Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Uwe Zeisberger | f30c226 | 2006-10-03 23:01:26 +0200 | [diff] [blame] | 2 | * fs/befs/befs_fs_types.h |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2001 Will Dyson (will@cs.earlham.edu) |
| 5 | * |
| 6 | * |
| 7 | * |
| 8 | * from linux/include/linux/befs_fs.h |
| 9 | * |
| 10 | * Copyright (C) 1999 Makoto Kato (m_kato@ga2.so-net.ne.jp) |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #ifndef _LINUX_BEFS_FS_TYPES |
| 15 | #define _LINUX_BEFS_FS_TYPES |
| 16 | |
| 17 | #ifdef __KERNEL__ |
| 18 | #include <linux/types.h> |
| 19 | #endif /*__KERNEL__*/ |
| 20 | |
| 21 | #define PACKED __attribute__ ((__packed__)) |
| 22 | |
| 23 | /* |
| 24 | * Max name lengths of BFS |
| 25 | */ |
| 26 | |
| 27 | #define BEFS_NAME_LEN 255 |
| 28 | |
| 29 | #define BEFS_SYMLINK_LEN 144 |
| 30 | #define BEFS_NUM_DIRECT_BLOCKS 12 |
| 31 | #define B_OS_NAME_LENGTH 32 |
| 32 | |
| 33 | /* The datastream blocks mapped by the double-indirect |
| 34 | * block are always 4 fs blocks long. |
| 35 | * This eliminates the need for linear searches among |
| 36 | * the potentially huge number of indirect blocks |
| 37 | * |
| 38 | * Err. Should that be 4 fs blocks or 4k??? |
| 39 | * It matters on large blocksize volumes |
| 40 | */ |
| 41 | #define BEFS_DBLINDIR_BRUN_LEN 4 |
| 42 | |
| 43 | /* |
| 44 | * Flags of superblock |
| 45 | */ |
| 46 | |
| 47 | enum super_flags { |
| 48 | BEFS_BYTESEX_BE, |
| 49 | BEFS_BYTESEX_LE, |
| 50 | BEFS_CLEAN = 0x434c454e, |
| 51 | BEFS_DIRTY = 0x44495254, |
| 52 | BEFS_SUPER_MAGIC1 = 0x42465331, /* BFS1 */ |
| 53 | BEFS_SUPER_MAGIC2 = 0xdd121031, |
| 54 | BEFS_SUPER_MAGIC3 = 0x15b6830e, |
| 55 | }; |
| 56 | |
| 57 | #define BEFS_BYTEORDER_NATIVE 0x42494745 |
Harvey Harrison | 152b95a | 2008-10-15 22:04:03 -0700 | [diff] [blame] | 58 | #define BEFS_BYTEORDER_NATIVE_LE (__force fs32)cpu_to_le32(BEFS_BYTEORDER_NATIVE) |
| 59 | #define BEFS_BYTEORDER_NATIVE_BE (__force fs32)cpu_to_be32(BEFS_BYTEORDER_NATIVE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | |
| 61 | #define BEFS_SUPER_MAGIC BEFS_SUPER_MAGIC1 |
Harvey Harrison | 152b95a | 2008-10-15 22:04:03 -0700 | [diff] [blame] | 62 | #define BEFS_SUPER_MAGIC1_LE (__force fs32)cpu_to_le32(BEFS_SUPER_MAGIC1) |
| 63 | #define BEFS_SUPER_MAGIC1_BE (__force fs32)cpu_to_be32(BEFS_SUPER_MAGIC1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | |
| 65 | /* |
| 66 | * Flags of inode |
| 67 | */ |
| 68 | |
| 69 | #define BEFS_INODE_MAGIC1 0x3bbe0ad9 |
| 70 | |
| 71 | enum inode_flags { |
| 72 | BEFS_INODE_IN_USE = 0x00000001, |
| 73 | BEFS_ATTR_INODE = 0x00000004, |
| 74 | BEFS_INODE_LOGGED = 0x00000008, |
| 75 | BEFS_INODE_DELETED = 0x00000010, |
| 76 | BEFS_LONG_SYMLINK = 0x00000040, |
| 77 | BEFS_PERMANENT_FLAG = 0x0000ffff, |
| 78 | BEFS_INODE_NO_CREATE = 0x00010000, |
| 79 | BEFS_INODE_WAS_WRITTEN = 0x00020000, |
| 80 | BEFS_NO_TRANSACTION = 0x00040000, |
| 81 | }; |
| 82 | /* |
| 83 | * On-Disk datastructures of BeFS |
| 84 | */ |
| 85 | |
Al Viro | 1151895 | 2005-12-24 01:32:03 -0500 | [diff] [blame] | 86 | typedef u64 __bitwise fs64; |
| 87 | typedef u32 __bitwise fs32; |
| 88 | typedef u16 __bitwise fs16; |
| 89 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | typedef u64 befs_off_t; |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 91 | typedef fs64 befs_time_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | |
| 93 | /* Block runs */ |
| 94 | typedef struct { |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 95 | fs32 allocation_group; |
| 96 | fs16 start; |
| 97 | fs16 len; |
| 98 | } PACKED befs_disk_block_run; |
| 99 | |
| 100 | typedef struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | u32 allocation_group; |
| 102 | u16 start; |
| 103 | u16 len; |
| 104 | } PACKED befs_block_run; |
| 105 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 106 | typedef befs_disk_block_run befs_disk_inode_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | typedef befs_block_run befs_inode_addr; |
| 108 | |
| 109 | /* |
| 110 | * The Superblock Structure |
| 111 | */ |
| 112 | typedef struct { |
| 113 | char name[B_OS_NAME_LENGTH]; |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 114 | fs32 magic1; |
| 115 | fs32 fs_byte_order; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 117 | fs32 block_size; |
| 118 | fs32 block_shift; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 120 | fs64 num_blocks; |
| 121 | fs64 used_blocks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 123 | fs32 inode_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 125 | fs32 magic2; |
| 126 | fs32 blocks_per_ag; |
| 127 | fs32 ag_shift; |
| 128 | fs32 num_ags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 130 | fs32 flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 132 | befs_disk_block_run log_blocks; |
| 133 | fs64 log_start; |
| 134 | fs64 log_end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 136 | fs32 magic3; |
| 137 | befs_disk_inode_addr root_dir; |
| 138 | befs_disk_inode_addr indices; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
| 140 | } PACKED befs_super_block; |
| 141 | |
| 142 | /* |
| 143 | * Note: the indirect and dbl_indir block_runs may |
| 144 | * be longer than one block! |
| 145 | */ |
| 146 | typedef struct { |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 147 | befs_disk_block_run direct[BEFS_NUM_DIRECT_BLOCKS]; |
| 148 | fs64 max_direct_range; |
| 149 | befs_disk_block_run indirect; |
| 150 | fs64 max_indirect_range; |
| 151 | befs_disk_block_run double_indirect; |
| 152 | fs64 max_double_indirect_range; |
| 153 | fs64 size; |
| 154 | } PACKED befs_disk_data_stream; |
| 155 | |
| 156 | typedef struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | befs_block_run direct[BEFS_NUM_DIRECT_BLOCKS]; |
| 158 | befs_off_t max_direct_range; |
| 159 | befs_block_run indirect; |
| 160 | befs_off_t max_indirect_range; |
| 161 | befs_block_run double_indirect; |
| 162 | befs_off_t max_double_indirect_range; |
| 163 | befs_off_t size; |
| 164 | } PACKED befs_data_stream; |
| 165 | |
| 166 | /* Attribute */ |
| 167 | typedef struct { |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 168 | fs32 type; |
| 169 | fs16 name_size; |
| 170 | fs16 data_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | char name[1]; |
| 172 | } PACKED befs_small_data; |
| 173 | |
| 174 | /* Inode structure */ |
| 175 | typedef struct { |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 176 | fs32 magic1; |
| 177 | befs_disk_inode_addr inode_num; |
| 178 | fs32 uid; |
| 179 | fs32 gid; |
| 180 | fs32 mode; |
| 181 | fs32 flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | befs_time_t create_time; |
| 183 | befs_time_t last_modified_time; |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 184 | befs_disk_inode_addr parent; |
| 185 | befs_disk_inode_addr attributes; |
| 186 | fs32 type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 188 | fs32 inode_size; |
| 189 | fs32 etc; /* not use */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | |
| 191 | union { |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 192 | befs_disk_data_stream datastream; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | char symlink[BEFS_SYMLINK_LEN]; |
| 194 | } data; |
| 195 | |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 196 | fs32 pad[4]; /* not use */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | befs_small_data small_data[1]; |
| 198 | } PACKED befs_inode; |
| 199 | |
| 200 | /* |
| 201 | * B+tree superblock |
| 202 | */ |
| 203 | |
| 204 | #define BEFS_BTREE_MAGIC 0x69f6c2e8 |
| 205 | |
| 206 | enum btree_types { |
| 207 | BTREE_STRING_TYPE = 0, |
| 208 | BTREE_INT32_TYPE = 1, |
| 209 | BTREE_UINT32_TYPE = 2, |
| 210 | BTREE_INT64_TYPE = 3, |
| 211 | BTREE_UINT64_TYPE = 4, |
| 212 | BTREE_FLOAT_TYPE = 5, |
| 213 | BTREE_DOUBLE_TYPE = 6 |
| 214 | }; |
| 215 | |
| 216 | typedef struct { |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 217 | fs32 magic; |
| 218 | fs32 node_size; |
| 219 | fs32 max_depth; |
| 220 | fs32 data_type; |
| 221 | fs64 root_node_ptr; |
| 222 | fs64 free_node_ptr; |
| 223 | fs64 max_size; |
| 224 | } PACKED befs_disk_btree_super; |
| 225 | |
| 226 | typedef struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | u32 magic; |
| 228 | u32 node_size; |
| 229 | u32 max_depth; |
| 230 | u32 data_type; |
| 231 | befs_off_t root_node_ptr; |
| 232 | befs_off_t free_node_ptr; |
| 233 | befs_off_t max_size; |
| 234 | } PACKED befs_btree_super; |
| 235 | |
| 236 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 237 | * Header structure of each btree node |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | */ |
| 239 | typedef struct { |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 240 | fs64 left; |
| 241 | fs64 right; |
| 242 | fs64 overflow; |
| 243 | fs16 all_key_count; |
| 244 | fs16 all_key_length; |
| 245 | } PACKED befs_btree_nodehead; |
| 246 | |
| 247 | typedef struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | befs_off_t left; |
| 249 | befs_off_t right; |
| 250 | befs_off_t overflow; |
| 251 | u16 all_key_count; |
| 252 | u16 all_key_length; |
Al Viro | a9721f3 | 2005-12-24 14:28:55 -0500 | [diff] [blame] | 253 | } PACKED befs_host_btree_nodehead; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
| 255 | #endif /* _LINUX_BEFS_FS_TYPES */ |