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