| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef _LINUX_EXT2_FS_H |
| #define _LINUX_EXT2_FS_H |
| |
| #include <linux/types.h> |
| |
| #undef EXT2FS_DEBUG |
| |
| #define EXT2_PREALLOCATE |
| #define EXT2_DEFAULT_PREALLOC_BLOCKS 8 |
| |
| #define EXT2FS_DATE "95/08/09" |
| #define EXT2FS_VERSION "0.5b" |
| |
| #ifdef EXT2FS_DEBUG |
| #define ext2_debug(f, a...) { printk ("EXT2-fs DEBUG (%s, %d): %s:", __FILE__, __LINE__, __FUNCTION__); printk (f, ## a); } |
| #else |
| #define ext2_debug(f, a...) |
| #endif |
| |
| #define EXT2_BAD_INO 1 |
| #define EXT2_ROOT_INO 2 |
| #define EXT2_BOOT_LOADER_INO 5 |
| #define EXT2_UNDEL_DIR_INO 6 |
| |
| #define EXT2_GOOD_OLD_FIRST_INO 11 |
| |
| #define EXT2_SUPER_MAGIC 0xEF53 |
| |
| #define EXT2_SB(sb) (sb) |
| |
| #define EXT2_LINK_MAX 32000 |
| |
| #define EXT2_MIN_BLOCK_SIZE 1024 |
| #define EXT2_MAX_BLOCK_SIZE 4096 |
| #define EXT2_MIN_BLOCK_LOG_SIZE 10 |
| #define EXT2_BLOCK_SIZE(s) (EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size) |
| #define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (__u32)) |
| #define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10) |
| #define EXT2_INODE_SIZE(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? EXT2_GOOD_OLD_INODE_SIZE : (s)->s_inode_size) |
| #define EXT2_FIRST_INO(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? EXT2_GOOD_OLD_FIRST_INO : (s)->s_first_ino) |
| |
| #define EXT2_MIN_FRAG_SIZE 1024 |
| #define EXT2_MAX_FRAG_SIZE 4096 |
| #define EXT2_MIN_FRAG_LOG_SIZE 10 |
| #define EXT2_FRAG_SIZE(s) (EXT2_MIN_FRAG_SIZE << (s)->s_log_frag_size) |
| #define EXT2_FRAGS_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / EXT2_FRAG_SIZE(s)) |
| |
| struct ext2_group_desc |
| { |
| __le32 bg_block_bitmap; |
| __le32 bg_inode_bitmap; |
| __le32 bg_inode_table; |
| __le16 bg_free_blocks_count; |
| __le16 bg_free_inodes_count; |
| __le16 bg_used_dirs_count; |
| __le16 bg_pad; |
| __le32 bg_reserved[3]; |
| }; |
| |
| #define EXT2_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group) |
| #define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_group_desc)) |
| #define EXT2_INODES_PER_GROUP(s) ((s)->s_inodes_per_group) |
| |
| #define EXT2_NDIR_BLOCKS 12 |
| #define EXT2_IND_BLOCK EXT2_NDIR_BLOCKS |
| #define EXT2_DIND_BLOCK (EXT2_IND_BLOCK + 1) |
| #define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1) |
| #define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1) |
| |
| #define EXT2_SECRM_FL 0x00000001 |
| #define EXT2_UNRM_FL 0x00000002 |
| #define EXT2_COMPR_FL 0x00000004 |
| #define EXT2_SYNC_FL 0x00000008 |
| #define EXT2_IMMUTABLE_FL 0x00000010 |
| #define EXT2_APPEND_FL 0x00000020 |
| #define EXT2_NODUMP_FL 0x00000040 |
| #define EXT2_NOATIME_FL 0x00000080 |
| |
| #define EXT2_DIRTY_FL 0x00000100 |
| #define EXT2_COMPRBLK_FL 0x00000200 |
| #define EXT2_NOCOMP_FL 0x00000400 |
| #define EXT2_ECOMPR_FL 0x00000800 |
| |
| #define EXT2_BTREE_FL 0x00001000 |
| #define EXT2_INDEX_FL 0x00001000 |
| #define EXT2_IMAGIC_FL 0x00002000 |
| #define EXT2_JOURNAL_DATA_FL 0x00004000 |
| #define EXT2_NOTAIL_FL 0x00008000 |
| #define EXT2_DIRSYNC_FL 0x00010000 |
| #define EXT2_TOPDIR_FL 0x00020000 |
| #define EXT2_RESERVED_FL 0x80000000 |
| |
| #define EXT2_FL_USER_VISIBLE 0x0003DFFF |
| #define EXT2_FL_USER_MODIFIABLE 0x000380FF |
| |
| #define EXT2_IOC_GETFLAGS _IOR('f', 1, long) |
| #define EXT2_IOC_SETFLAGS _IOW('f', 2, long) |
| #define EXT2_IOC_GETVERSION _IOR('v', 1, long) |
| #define EXT2_IOC_SETVERSION _IOW('v', 2, long) |
| |
| struct ext2_inode { |
| __le16 i_mode; |
| __le16 i_uid; |
| __le32 i_size; |
| __le32 i_atime; |
| __le32 i_ctime; |
| __le32 i_mtime; |
| __le32 i_dtime; |
| __le16 i_gid; |
| __le16 i_links_count; |
| __le32 i_blocks; |
| __le32 i_flags; |
| union { |
| struct { |
| __le32 l_i_reserved1; |
| } linux1; |
| struct { |
| __le32 h_i_translator; |
| } hurd1; |
| struct { |
| __le32 m_i_reserved1; |
| } masix1; |
| } osd1; |
| __le32 i_block[EXT2_N_BLOCKS]; |
| __le32 i_generation; |
| __le32 i_file_acl; |
| __le32 i_dir_acl; |
| __le32 i_faddr; |
| union { |
| struct { |
| __u8 l_i_frag; |
| __u8 l_i_fsize; |
| __u16 i_pad1; |
| __le16 l_i_uid_high; |
| __le16 l_i_gid_high; |
| __u32 l_i_reserved2; |
| } linux2; |
| struct { |
| __u8 h_i_frag; |
| __u8 h_i_fsize; |
| __le16 h_i_mode_high; |
| __le16 h_i_uid_high; |
| __le16 h_i_gid_high; |
| __le32 h_i_author; |
| } hurd2; |
| struct { |
| __u8 m_i_frag; |
| __u8 m_i_fsize; |
| __u16 m_pad1; |
| __u32 m_i_reserved2[2]; |
| } masix2; |
| } osd2; |
| }; |
| |
| #define i_size_high i_dir_acl |
| |
| #ifdef __linux__ |
| #define i_reserved1 osd1.linux1.l_i_reserved1 |
| #define i_frag osd2.linux2.l_i_frag |
| #define i_fsize osd2.linux2.l_i_fsize |
| #define i_uid_low i_uid |
| #define i_gid_low i_gid |
| #define i_uid_high osd2.linux2.l_i_uid_high |
| #define i_gid_high osd2.linux2.l_i_gid_high |
| #define i_reserved2 osd2.linux2.l_i_reserved2 |
| #endif |
| |
| #ifdef __hurd__ |
| #define i_translator osd1.hurd1.h_i_translator |
| #define i_frag osd2.hurd2.h_i_frag; |
| #define i_fsize osd2.hurd2.h_i_fsize; |
| #define i_uid_high osd2.hurd2.h_i_uid_high |
| #define i_gid_high osd2.hurd2.h_i_gid_high |
| #define i_author osd2.hurd2.h_i_author |
| #endif |
| |
| #ifdef __masix__ |
| #define i_reserved1 osd1.masix1.m_i_reserved1 |
| #define i_frag osd2.masix2.m_i_frag |
| #define i_fsize osd2.masix2.m_i_fsize |
| #define i_reserved2 osd2.masix2.m_i_reserved2 |
| #endif |
| |
| #define EXT2_VALID_FS 0x0001 |
| #define EXT2_ERROR_FS 0x0002 |
| |
| #define EXT2_MOUNT_CHECK 0x000001 |
| #define EXT2_MOUNT_OLDALLOC 0x000002 |
| #define EXT2_MOUNT_GRPID 0x000004 |
| #define EXT2_MOUNT_DEBUG 0x000008 |
| #define EXT2_MOUNT_ERRORS_CONT 0x000010 |
| #define EXT2_MOUNT_ERRORS_RO 0x000020 |
| #define EXT2_MOUNT_ERRORS_PANIC 0x000040 |
| #define EXT2_MOUNT_MINIX_DF 0x000080 |
| #define EXT2_MOUNT_NOBH 0x000100 |
| #define EXT2_MOUNT_NO_UID32 0x000200 |
| #define EXT2_MOUNT_XATTR_USER 0x004000 |
| #define EXT2_MOUNT_POSIX_ACL 0x008000 |
| #define EXT2_MOUNT_XIP 0x010000 |
| #define EXT2_MOUNT_USRQUOTA 0x020000 |
| #define EXT2_MOUNT_GRPQUOTA 0x040000 |
| |
| #define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt |
| #define set_opt(o, opt) o |= EXT2_MOUNT_##opt |
| #define test_opt(sb, opt) (EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_##opt) |
| |
| #define EXT2_DFL_MAX_MNT_COUNT 20 |
| #define EXT2_DFL_CHECKINTERVAL 0 |
| |
| #define EXT2_ERRORS_CONTINUE 1 |
| #define EXT2_ERRORS_RO 2 |
| #define EXT2_ERRORS_PANIC 3 |
| #define EXT2_ERRORS_DEFAULT EXT2_ERRORS_CONTINUE |
| |
| struct ext2_super_block { |
| __le32 s_inodes_count; |
| __le32 s_blocks_count; |
| __le32 s_r_blocks_count; |
| __le32 s_free_blocks_count; |
| __le32 s_free_inodes_count; |
| __le32 s_first_data_block; |
| __le32 s_log_block_size; |
| __le32 s_log_frag_size; |
| __le32 s_blocks_per_group; |
| __le32 s_frags_per_group; |
| __le32 s_inodes_per_group; |
| __le32 s_mtime; |
| __le32 s_wtime; |
| __le16 s_mnt_count; |
| __le16 s_max_mnt_count; |
| __le16 s_magic; |
| __le16 s_state; |
| __le16 s_errors; |
| __le16 s_minor_rev_level; |
| __le32 s_lastcheck; |
| __le32 s_checkinterval; |
| __le32 s_creator_os; |
| __le32 s_rev_level; |
| __le16 s_def_resuid; |
| __le16 s_def_resgid; |
| |
| __le32 s_first_ino; |
| __le16 s_inode_size; |
| __le16 s_block_group_nr; |
| __le32 s_feature_compat; |
| __le32 s_feature_incompat; |
| __le32 s_feature_ro_compat; |
| __u8 s_uuid[16]; |
| char s_volume_name[16]; |
| char s_last_mounted[64]; |
| __le32 s_algorithm_usage_bitmap; |
| |
| __u8 s_prealloc_blocks; |
| __u8 s_prealloc_dir_blocks; |
| __u16 s_padding1; |
| |
| __u8 s_journal_uuid[16]; |
| __u32 s_journal_inum; |
| __u32 s_journal_dev; |
| __u32 s_last_orphan; |
| __u32 s_hash_seed[4]; |
| __u8 s_def_hash_version; |
| __u8 s_reserved_char_pad; |
| __u16 s_reserved_word_pad; |
| __le32 s_default_mount_opts; |
| __le32 s_first_meta_bg; |
| __u32 s_reserved[190]; |
| }; |
| |
| #define EXT2_OS_LINUX 0 |
| #define EXT2_OS_HURD 1 |
| #define EXT2_OS_MASIX 2 |
| #define EXT2_OS_FREEBSD 3 |
| #define EXT2_OS_LITES 4 |
| |
| #define EXT2_GOOD_OLD_REV 0 |
| #define EXT2_DYNAMIC_REV 1 |
| |
| #define EXT2_CURRENT_REV EXT2_GOOD_OLD_REV |
| #define EXT2_MAX_SUPP_REV EXT2_DYNAMIC_REV |
| |
| #define EXT2_GOOD_OLD_INODE_SIZE 128 |
| |
| #define EXT2_HAS_COMPAT_FEATURE(sb,mask) ( EXT2_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) ) |
| #define EXT2_HAS_RO_COMPAT_FEATURE(sb,mask) ( EXT2_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) ) |
| #define EXT2_HAS_INCOMPAT_FEATURE(sb,mask) ( EXT2_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) ) |
| #define EXT2_SET_COMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask) |
| #define EXT2_SET_RO_COMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask) |
| #define EXT2_SET_INCOMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask) |
| #define EXT2_CLEAR_COMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask) |
| #define EXT2_CLEAR_RO_COMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask) |
| #define EXT2_CLEAR_INCOMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask) |
| |
| #define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001 |
| #define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002 |
| #define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004 |
| #define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008 |
| #define EXT2_FEATURE_COMPAT_RESIZE_INO 0x0010 |
| #define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020 |
| #define EXT2_FEATURE_COMPAT_ANY 0xffffffff |
| |
| #define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001 |
| #define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002 |
| #define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004 |
| #define EXT2_FEATURE_RO_COMPAT_ANY 0xffffffff |
| |
| #define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001 |
| #define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002 |
| #define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 |
| #define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 |
| #define EXT2_FEATURE_INCOMPAT_META_BG 0x0010 |
| #define EXT2_FEATURE_INCOMPAT_ANY 0xffffffff |
| |
| #define EXT2_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR |
| #define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| EXT2_FEATURE_INCOMPAT_META_BG) |
| #define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| EXT2_FEATURE_RO_COMPAT_LARGE_FILE| EXT2_FEATURE_RO_COMPAT_BTREE_DIR) |
| #define EXT2_FEATURE_RO_COMPAT_UNSUPPORTED ~EXT2_FEATURE_RO_COMPAT_SUPP |
| #define EXT2_FEATURE_INCOMPAT_UNSUPPORTED ~EXT2_FEATURE_INCOMPAT_SUPP |
| |
| #define EXT2_DEF_RESUID 0 |
| #define EXT2_DEF_RESGID 0 |
| |
| #define EXT2_DEFM_DEBUG 0x0001 |
| #define EXT2_DEFM_BSDGROUPS 0x0002 |
| #define EXT2_DEFM_XATTR_USER 0x0004 |
| #define EXT2_DEFM_ACL 0x0008 |
| #define EXT2_DEFM_UID16 0x0010 |
| |
| #define EXT3_DEFM_JMODE 0x0060 |
| #define EXT3_DEFM_JMODE_DATA 0x0020 |
| #define EXT3_DEFM_JMODE_ORDERED 0x0040 |
| #define EXT3_DEFM_JMODE_WBACK 0x0060 |
| |
| #define EXT2_NAME_LEN 255 |
| |
| struct ext2_dir_entry { |
| __le32 inode; |
| __le16 rec_len; |
| __le16 name_len; |
| char name[EXT2_NAME_LEN]; |
| }; |
| |
| struct ext2_dir_entry_2 { |
| __le32 inode; |
| __le16 rec_len; |
| __u8 name_len; |
| __u8 file_type; |
| char name[EXT2_NAME_LEN]; |
| }; |
| |
| enum { |
| EXT2_FT_UNKNOWN, |
| EXT2_FT_REG_FILE, |
| EXT2_FT_DIR, |
| EXT2_FT_CHRDEV, |
| EXT2_FT_BLKDEV, |
| EXT2_FT_FIFO, |
| EXT2_FT_SOCK, |
| EXT2_FT_SYMLINK, |
| EXT2_FT_MAX |
| }; |
| |
| #define EXT2_DIR_PAD 4 |
| #define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1) |
| #define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) & ~EXT2_DIR_ROUND) |
| |
| #endif |
