ndk/platforms/android-18/arch-x86/usr/include/linux/ext2_fs.h

   1 /****************************************************************************
   2  ****************************************************************************
   3  ***
   4  ***   This header was automatically generated from a Linux kernel header
   5  ***   of the same name, to make information necessary for userspace to
   6  ***   call into the kernel available to libc.  It contains only constants,
   7  ***   structures, and macros generated from the original header, and thus,
   8  ***   contains no copyrightable information.
   9  ***
  10  ****************************************************************************
  11  ****************************************************************************/
  12 #ifndef _LINUX_EXT2_FS_H
  13 #define _LINUX_EXT2_FS_H
  14
  15 #include <linux/types.h>
  16
  17 #undef EXT2FS_DEBUG
  18
  19 #define EXT2_PREALLOCATE
  20 #define EXT2_DEFAULT_PREALLOC_BLOCKS 8
  21
  22 #define EXT2FS_DATE "95/08/09"
  23 #define EXT2FS_VERSION "0.5b"
  24
  25 #ifdef EXT2FS_DEBUG
  26 #define ext2_debug(f, a...) {   printk ("EXT2-fs DEBUG (%s, %d): %s:",   __FILE__, __LINE__, __FUNCTION__);   printk (f, ## a);   }
  27 #else
  28 #define ext2_debug(f, a...)
  29 #endif
  30
  31 #define EXT2_BAD_INO 1
  32 #define EXT2_ROOT_INO 2
  33 #define EXT2_BOOT_LOADER_INO 5
  34 #define EXT2_UNDEL_DIR_INO 6
  35
  36 #define EXT2_GOOD_OLD_FIRST_INO 11
  37
  38 #define EXT2_SUPER_MAGIC 0xEF53
  39
  40 #define EXT2_SB(sb) (sb)
  41
  42 #define EXT2_LINK_MAX 32000
  43
  44 #define EXT2_MIN_BLOCK_SIZE 1024
  45 #define EXT2_MAX_BLOCK_SIZE 4096
  46 #define EXT2_MIN_BLOCK_LOG_SIZE 10
  47 #define EXT2_BLOCK_SIZE(s) (EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size)
  48 #define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (__u32))
  49 #define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
  50 #define EXT2_INODE_SIZE(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ?   EXT2_GOOD_OLD_INODE_SIZE :   (s)->s_inode_size)
  51 #define EXT2_FIRST_INO(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ?   EXT2_GOOD_OLD_FIRST_INO :   (s)->s_first_ino)
  52
  53 #define EXT2_MIN_FRAG_SIZE 1024
  54 #define EXT2_MAX_FRAG_SIZE 4096
  55 #define EXT2_MIN_FRAG_LOG_SIZE 10
  56 #define EXT2_FRAG_SIZE(s) (EXT2_MIN_FRAG_SIZE << (s)->s_log_frag_size)
  57 #define EXT2_FRAGS_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / EXT2_FRAG_SIZE(s))
  58
  59 struct ext2_group_desc
  60 {
  61  __le32 bg_block_bitmap;
  62  __le32 bg_inode_bitmap;
  63  __le32 bg_inode_table;
  64  __le16 bg_free_blocks_count;
  65  __le16 bg_free_inodes_count;
  66  __le16 bg_used_dirs_count;
  67  __le16 bg_pad;
  68  __le32 bg_reserved[3];
  69 };
  70
  71 #define EXT2_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group)
  72 #define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_group_desc))
  73 #define EXT2_INODES_PER_GROUP(s) ((s)->s_inodes_per_group)
  74
  75 #define EXT2_NDIR_BLOCKS 12
  76 #define EXT2_IND_BLOCK EXT2_NDIR_BLOCKS
  77 #define EXT2_DIND_BLOCK (EXT2_IND_BLOCK + 1)
  78 #define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1)
  79 #define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1)
  80
  81 #define EXT2_SECRM_FL 0x00000001
  82 #define EXT2_UNRM_FL 0x00000002
  83 #define EXT2_COMPR_FL 0x00000004
  84 #define EXT2_SYNC_FL 0x00000008
  85 #define EXT2_IMMUTABLE_FL 0x00000010
  86 #define EXT2_APPEND_FL 0x00000020
  87 #define EXT2_NODUMP_FL 0x00000040
  88 #define EXT2_NOATIME_FL 0x00000080
  89
  90 #define EXT2_DIRTY_FL 0x00000100
  91 #define EXT2_COMPRBLK_FL 0x00000200
  92 #define EXT2_NOCOMP_FL 0x00000400
  93 #define EXT2_ECOMPR_FL 0x00000800
  94
  95 #define EXT2_BTREE_FL 0x00001000
  96 #define EXT2_INDEX_FL 0x00001000
  97 #define EXT2_IMAGIC_FL 0x00002000
  98 #define EXT2_JOURNAL_DATA_FL 0x00004000
  99 #define EXT2_NOTAIL_FL 0x00008000
 100 #define EXT2_DIRSYNC_FL 0x00010000
 101 #define EXT2_TOPDIR_FL 0x00020000
 102 #define EXT2_RESERVED_FL 0x80000000
 103
 104 #define EXT2_FL_USER_VISIBLE 0x0003DFFF
 105 #define EXT2_FL_USER_MODIFIABLE 0x000380FF
 106
 107 #define EXT2_IOC_GETFLAGS _IOR('f', 1, long)
 108 #define EXT2_IOC_SETFLAGS _IOW('f', 2, long)
 109 #define EXT2_IOC_GETVERSION _IOR('v', 1, long)
 110 #define EXT2_IOC_SETVERSION _IOW('v', 2, long)
 111
 112 struct ext2_inode {
 113  __le16 i_mode;
 114  __le16 i_uid;
 115  __le32 i_size;
 116  __le32 i_atime;
 117  __le32 i_ctime;
 118  __le32 i_mtime;
 119  __le32 i_dtime;
 120  __le16 i_gid;
 121  __le16 i_links_count;
 122  __le32 i_blocks;
 123  __le32 i_flags;
 124  union {
 125  struct {
 126  __le32 l_i_reserved1;
 127  } linux1;
 128  struct {
 129  __le32 h_i_translator;
 130  } hurd1;
 131  struct {
 132  __le32 m_i_reserved1;
 133  } masix1;
 134  } osd1;
 135  __le32 i_block[EXT2_N_BLOCKS];
 136  __le32 i_generation;
 137  __le32 i_file_acl;
 138  __le32 i_dir_acl;
 139  __le32 i_faddr;
 140  union {
 141  struct {
 142  __u8 l_i_frag;
 143  __u8 l_i_fsize;
 144  __u16 i_pad1;
 145  __le16 l_i_uid_high;
 146  __le16 l_i_gid_high;
 147  __u32 l_i_reserved2;
 148  } linux2;
 149  struct {
 150  __u8 h_i_frag;
 151  __u8 h_i_fsize;
 152  __le16 h_i_mode_high;
 153  __le16 h_i_uid_high;
 154  __le16 h_i_gid_high;
 155  __le32 h_i_author;
 156  } hurd2;
 157  struct {
 158  __u8 m_i_frag;
 159  __u8 m_i_fsize;
 160  __u16 m_pad1;
 161  __u32 m_i_reserved2[2];
 162  } masix2;
 163  } osd2;
 164 };
 165
 166 #define i_size_high i_dir_acl
 167
 168 #ifdef __linux__
 169 #define i_reserved1 osd1.linux1.l_i_reserved1
 170 #define i_frag osd2.linux2.l_i_frag
 171 #define i_fsize osd2.linux2.l_i_fsize
 172 #define i_uid_low i_uid
 173 #define i_gid_low i_gid
 174 #define i_uid_high osd2.linux2.l_i_uid_high
 175 #define i_gid_high osd2.linux2.l_i_gid_high
 176 #define i_reserved2 osd2.linux2.l_i_reserved2
 177 #endif
 178
 179 #ifdef __hurd__
 180 #define i_translator osd1.hurd1.h_i_translator
 181 #define i_frag osd2.hurd2.h_i_frag;
 182 #define i_fsize osd2.hurd2.h_i_fsize;
 183 #define i_uid_high osd2.hurd2.h_i_uid_high
 184 #define i_gid_high osd2.hurd2.h_i_gid_high
 185 #define i_author osd2.hurd2.h_i_author
 186 #endif
 187
 188 #ifdef __masix__
 189 #define i_reserved1 osd1.masix1.m_i_reserved1
 190 #define i_frag osd2.masix2.m_i_frag
 191 #define i_fsize osd2.masix2.m_i_fsize
 192 #define i_reserved2 osd2.masix2.m_i_reserved2
 193 #endif
 194
 195 #define EXT2_VALID_FS 0x0001
 196 #define EXT2_ERROR_FS 0x0002
 197
 198 #define EXT2_MOUNT_CHECK 0x000001
 199 #define EXT2_MOUNT_OLDALLOC 0x000002
 200 #define EXT2_MOUNT_GRPID 0x000004
 201 #define EXT2_MOUNT_DEBUG 0x000008
 202 #define EXT2_MOUNT_ERRORS_CONT 0x000010
 203 #define EXT2_MOUNT_ERRORS_RO 0x000020
 204 #define EXT2_MOUNT_ERRORS_PANIC 0x000040
 205 #define EXT2_MOUNT_MINIX_DF 0x000080
 206 #define EXT2_MOUNT_NOBH 0x000100
 207 #define EXT2_MOUNT_NO_UID32 0x000200
 208 #define EXT2_MOUNT_XATTR_USER 0x004000
 209 #define EXT2_MOUNT_POSIX_ACL 0x008000
 210 #define EXT2_MOUNT_XIP 0x010000
 211 #define EXT2_MOUNT_USRQUOTA 0x020000
 212 #define EXT2_MOUNT_GRPQUOTA 0x040000
 213
 214 #define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt
 215 #define set_opt(o, opt) o |= EXT2_MOUNT_##opt
 216 #define test_opt(sb, opt) (EXT2_SB(sb)->s_mount_opt &   EXT2_MOUNT_##opt)
 217
 218 #define EXT2_DFL_MAX_MNT_COUNT 20
 219 #define EXT2_DFL_CHECKINTERVAL 0
 220
 221 #define EXT2_ERRORS_CONTINUE 1
 222 #define EXT2_ERRORS_RO 2
 223 #define EXT2_ERRORS_PANIC 3
 224 #define EXT2_ERRORS_DEFAULT EXT2_ERRORS_CONTINUE
 225
 226 struct ext2_super_block {
 227  __le32 s_inodes_count;
 228  __le32 s_blocks_count;
 229  __le32 s_r_blocks_count;
 230  __le32 s_free_blocks_count;
 231  __le32 s_free_inodes_count;
 232  __le32 s_first_data_block;
 233  __le32 s_log_block_size;
 234  __le32 s_log_frag_size;
 235  __le32 s_blocks_per_group;
 236  __le32 s_frags_per_group;
 237  __le32 s_inodes_per_group;
 238  __le32 s_mtime;
 239  __le32 s_wtime;
 240  __le16 s_mnt_count;
 241  __le16 s_max_mnt_count;
 242  __le16 s_magic;
 243  __le16 s_state;
 244  __le16 s_errors;
 245  __le16 s_minor_rev_level;
 246  __le32 s_lastcheck;
 247  __le32 s_checkinterval;
 248  __le32 s_creator_os;
 249  __le32 s_rev_level;
 250  __le16 s_def_resuid;
 251  __le16 s_def_resgid;
 252
 253  __le32 s_first_ino;
 254  __le16 s_inode_size;
 255  __le16 s_block_group_nr;
 256  __le32 s_feature_compat;
 257  __le32 s_feature_incompat;
 258  __le32 s_feature_ro_compat;
 259  __u8 s_uuid[16];
 260  char s_volume_name[16];
 261  char s_last_mounted[64];
 262  __le32 s_algorithm_usage_bitmap;
 263
 264  __u8 s_prealloc_blocks;
 265  __u8 s_prealloc_dir_blocks;
 266  __u16 s_padding1;
 267
 268  __u8 s_journal_uuid[16];
 269  __u32 s_journal_inum;
 270  __u32 s_journal_dev;
 271  __u32 s_last_orphan;
 272  __u32 s_hash_seed[4];
 273  __u8 s_def_hash_version;
 274  __u8 s_reserved_char_pad;
 275  __u16 s_reserved_word_pad;
 276  __le32 s_default_mount_opts;
 277  __le32 s_first_meta_bg;
 278  __u32 s_reserved[190];
 279 };
 280
 281 #define EXT2_OS_LINUX 0
 282 #define EXT2_OS_HURD 1
 283 #define EXT2_OS_MASIX 2
 284 #define EXT2_OS_FREEBSD 3
 285 #define EXT2_OS_LITES 4
 286
 287 #define EXT2_GOOD_OLD_REV 0
 288 #define EXT2_DYNAMIC_REV 1
 289
 290 #define EXT2_CURRENT_REV EXT2_GOOD_OLD_REV
 291 #define EXT2_MAX_SUPP_REV EXT2_DYNAMIC_REV
 292
 293 #define EXT2_GOOD_OLD_INODE_SIZE 128
 294
 295 #define EXT2_HAS_COMPAT_FEATURE(sb,mask)   ( EXT2_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
 296 #define EXT2_HAS_RO_COMPAT_FEATURE(sb,mask)   ( EXT2_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) )
 297 #define EXT2_HAS_INCOMPAT_FEATURE(sb,mask)   ( EXT2_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
 298 #define EXT2_SET_COMPAT_FEATURE(sb,mask)   EXT2_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
 299 #define EXT2_SET_RO_COMPAT_FEATURE(sb,mask)   EXT2_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
 300 #define EXT2_SET_INCOMPAT_FEATURE(sb,mask)   EXT2_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
 301 #define EXT2_CLEAR_COMPAT_FEATURE(sb,mask)   EXT2_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
 302 #define EXT2_CLEAR_RO_COMPAT_FEATURE(sb,mask)   EXT2_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
 303 #define EXT2_CLEAR_INCOMPAT_FEATURE(sb,mask)   EXT2_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
 304
 305 #define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001
 306 #define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002
 307 #define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
 308 #define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008
 309 #define EXT2_FEATURE_COMPAT_RESIZE_INO 0x0010
 310 #define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020
 311 #define EXT2_FEATURE_COMPAT_ANY 0xffffffff
 312
 313 #define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
 314 #define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
 315 #define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
 316 #define EXT2_FEATURE_RO_COMPAT_ANY 0xffffffff
 317
 318 #define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001
 319 #define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
 320 #define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004
 321 #define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008
 322 #define EXT2_FEATURE_INCOMPAT_META_BG 0x0010
 323 #define EXT2_FEATURE_INCOMPAT_ANY 0xffffffff
 324
 325 #define EXT2_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR
 326 #define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|   EXT2_FEATURE_INCOMPAT_META_BG)
 327 #define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|   EXT2_FEATURE_RO_COMPAT_LARGE_FILE|   EXT2_FEATURE_RO_COMPAT_BTREE_DIR)
 328 #define EXT2_FEATURE_RO_COMPAT_UNSUPPORTED ~EXT2_FEATURE_RO_COMPAT_SUPP
 329 #define EXT2_FEATURE_INCOMPAT_UNSUPPORTED ~EXT2_FEATURE_INCOMPAT_SUPP
 330
 331 #define EXT2_DEF_RESUID 0
 332 #define EXT2_DEF_RESGID 0
 333
 334 #define EXT2_DEFM_DEBUG 0x0001
 335 #define EXT2_DEFM_BSDGROUPS 0x0002
 336 #define EXT2_DEFM_XATTR_USER 0x0004
 337 #define EXT2_DEFM_ACL 0x0008
 338 #define EXT2_DEFM_UID16 0x0010
 339
 340 #define EXT3_DEFM_JMODE 0x0060
 341 #define EXT3_DEFM_JMODE_DATA 0x0020
 342 #define EXT3_DEFM_JMODE_ORDERED 0x0040
 343 #define EXT3_DEFM_JMODE_WBACK 0x0060
 344
 345 #define EXT2_NAME_LEN 255
 346
 347 struct ext2_dir_entry {
 348  __le32 inode;
 349  __le16 rec_len;
 350  __le16 name_len;
 351  char name[EXT2_NAME_LEN];
 352 };
 353
 354 struct ext2_dir_entry_2 {
 355  __le32 inode;
 356  __le16 rec_len;
 357  __u8 name_len;
 358  __u8 file_type;
 359  char name[EXT2_NAME_LEN];
 360 };
 361
 362 enum {
 363  EXT2_FT_UNKNOWN,
 364  EXT2_FT_REG_FILE,
 365  EXT2_FT_DIR,
 366  EXT2_FT_CHRDEV,
 367  EXT2_FT_BLKDEV,
 368  EXT2_FT_FIFO,
 369  EXT2_FT_SOCK,
 370  EXT2_FT_SYMLINK,
 371  EXT2_FT_MAX
 372 };
 373
 374 #define EXT2_DIR_PAD 4
 375 #define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1)
 376 #define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) &   ~EXT2_DIR_ROUND)
 377
 378 #endif