111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/**************************************************************************** 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert **************************************************************************** 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** This header was automatically generated from a Linux kernel header 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** of the same name, to make information necessary for userspace to 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** call into the kernel available to libc. It contains only constants, 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** structures, and macros generated from the original header, and thus, 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** contains no copyrightable information. 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert *** 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert **************************************************************************** 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ****************************************************************************/ 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef _LINUX_EXT2_FS_H 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _LINUX_EXT2_FS_H 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <linux/types.h> 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#undef EXT2FS_DEBUG 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_PREALLOCATE 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DEFAULT_PREALLOC_BLOCKS 8 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2FS_DATE "95/08/09" 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2FS_VERSION "0.5b" 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef EXT2FS_DEBUG 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define ext2_debug(f, a...) { printk ("EXT2-fs DEBUG (%s, %d): %s:", __FILE__, __LINE__, __FUNCTION__); printk (f, ## a); } 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#else 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define ext2_debug(f, a...) 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_BAD_INO 1 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_ROOT_INO 2 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_BOOT_LOADER_INO 5 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_UNDEL_DIR_INO 6 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_GOOD_OLD_FIRST_INO 11 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_SUPER_MAGIC 0xEF53 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_SB(sb) (sb) 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_LINK_MAX 32000 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MIN_BLOCK_SIZE 1024 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MAX_BLOCK_SIZE 4096 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MIN_BLOCK_LOG_SIZE 10 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_BLOCK_SIZE(s) (EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size) 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (__u32)) 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10) 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_INODE_SIZE(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? EXT2_GOOD_OLD_INODE_SIZE : (s)->s_inode_size) 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FIRST_INO(s) (((s)->s_rev_level == EXT2_GOOD_OLD_REV) ? EXT2_GOOD_OLD_FIRST_INO : (s)->s_first_ino) 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MIN_FRAG_SIZE 1024 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MAX_FRAG_SIZE 4096 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MIN_FRAG_LOG_SIZE 10 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FRAG_SIZE(s) (EXT2_MIN_FRAG_SIZE << (s)->s_log_frag_size) 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FRAGS_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / EXT2_FRAG_SIZE(s)) 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct ext2_group_desc 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 bg_block_bitmap; 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 bg_inode_bitmap; 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 bg_inode_table; 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 bg_free_blocks_count; 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 bg_free_inodes_count; 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 bg_used_dirs_count; 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 bg_pad; 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 bg_reserved[3]; 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group) 7211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof (struct ext2_group_desc)) 7311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_INODES_PER_GROUP(s) ((s)->s_inodes_per_group) 7411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_NDIR_BLOCKS 12 7611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_IND_BLOCK EXT2_NDIR_BLOCKS 7711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DIND_BLOCK (EXT2_IND_BLOCK + 1) 7811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_TIND_BLOCK (EXT2_DIND_BLOCK + 1) 7911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_N_BLOCKS (EXT2_TIND_BLOCK + 1) 8011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_SECRM_FL 0x00000001 8211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_UNRM_FL 0x00000002 8311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_COMPR_FL 0x00000004 8411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_SYNC_FL 0x00000008 8511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_IMMUTABLE_FL 0x00000010 8611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_APPEND_FL 0x00000020 8711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_NODUMP_FL 0x00000040 8811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_NOATIME_FL 0x00000080 8911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DIRTY_FL 0x00000100 9111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_COMPRBLK_FL 0x00000200 9211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_NOCOMP_FL 0x00000400 9311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_ECOMPR_FL 0x00000800 9411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_BTREE_FL 0x00001000 9611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_INDEX_FL 0x00001000 9711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_IMAGIC_FL 0x00002000 9811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_JOURNAL_DATA_FL 0x00004000 9911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_NOTAIL_FL 0x00008000 10011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DIRSYNC_FL 0x00010000 10111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_TOPDIR_FL 0x00020000 10211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_RESERVED_FL 0x80000000 10311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FL_USER_VISIBLE 0x0003DFFF 10511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FL_USER_MODIFIABLE 0x000380FF 10611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_IOC_GETFLAGS _IOR('f', 1, long) 10811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_IOC_SETFLAGS _IOW('f', 2, long) 10911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_IOC_GETVERSION _IOR('v', 1, long) 11011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_IOC_SETVERSION _IOW('v', 2, long) 11111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 11211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct ext2_inode { 11311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 i_mode; 11411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 i_uid; 11511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_size; 11611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_atime; 11711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_ctime; 11811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_mtime; 11911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_dtime; 12011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 i_gid; 12111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 i_links_count; 12211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_blocks; 12311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_flags; 12411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert union { 12511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct { 12611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 l_i_reserved1; 12711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } linux1; 12811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct { 12911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 h_i_translator; 13011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } hurd1; 13111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct { 13211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 m_i_reserved1; 13311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } masix1; 13411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } osd1; 13511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_block[EXT2_N_BLOCKS]; 13611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_generation; 13711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_file_acl; 13811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_dir_acl; 13911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 i_faddr; 14011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert union { 14111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct { 14211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 l_i_frag; 14311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 l_i_fsize; 14411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 i_pad1; 14511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 l_i_uid_high; 14611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 l_i_gid_high; 14711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 l_i_reserved2; 14811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } linux2; 14911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct { 15011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 h_i_frag; 15111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 h_i_fsize; 15211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 h_i_mode_high; 15311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 h_i_uid_high; 15411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 h_i_gid_high; 15511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 h_i_author; 15611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } hurd2; 15711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct { 15811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 m_i_frag; 15911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 m_i_fsize; 16011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 m_pad1; 16111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 m_i_reserved2[2]; 16211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } masix2; 16311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } osd2; 16411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 16511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_size_high i_dir_acl 16711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 16811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef __linux__ 16911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_reserved1 osd1.linux1.l_i_reserved1 17011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_frag osd2.linux2.l_i_frag 17111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_fsize osd2.linux2.l_i_fsize 17211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_uid_low i_uid 17311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_gid_low i_gid 17411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_uid_high osd2.linux2.l_i_uid_high 17511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_gid_high osd2.linux2.l_i_gid_high 17611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_reserved2 osd2.linux2.l_i_reserved2 17711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 17811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 17911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef __hurd__ 18011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_translator osd1.hurd1.h_i_translator 18111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_frag osd2.hurd2.h_i_frag; 18211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_fsize osd2.hurd2.h_i_fsize; 18311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_uid_high osd2.hurd2.h_i_uid_high 18411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_gid_high osd2.hurd2.h_i_gid_high 18511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_author osd2.hurd2.h_i_author 18611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 18711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 18811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifdef __masix__ 18911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_reserved1 osd1.masix1.m_i_reserved1 19011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_frag osd2.masix2.m_i_frag 19111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_fsize osd2.masix2.m_i_fsize 19211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define i_reserved2 osd2.masix2.m_i_reserved2 19311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 19411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_VALID_FS 0x0001 19611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_ERROR_FS 0x0002 19711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 19811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_CHECK 0x000001 19911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_OLDALLOC 0x000002 20011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_GRPID 0x000004 20111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_DEBUG 0x000008 20211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_ERRORS_CONT 0x000010 20311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_ERRORS_RO 0x000020 20411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_ERRORS_PANIC 0x000040 20511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_MINIX_DF 0x000080 20611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_NOBH 0x000100 20711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_NO_UID32 0x000200 20811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_XATTR_USER 0x004000 20911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_POSIX_ACL 0x008000 21011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_XIP 0x010000 21111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_USRQUOTA 0x020000 21211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MOUNT_GRPQUOTA 0x040000 21311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 21411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt 21511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define set_opt(o, opt) o |= EXT2_MOUNT_##opt 21611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define test_opt(sb, opt) (EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_##opt) 21711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 21811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DFL_MAX_MNT_COUNT 20 21911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DFL_CHECKINTERVAL 0 22011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 22111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_ERRORS_CONTINUE 1 22211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_ERRORS_RO 2 22311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_ERRORS_PANIC 3 22411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_ERRORS_DEFAULT EXT2_ERRORS_CONTINUE 22511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 22611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct ext2_super_block { 22711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_inodes_count; 22811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_blocks_count; 22911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_r_blocks_count; 23011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_free_blocks_count; 23111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_free_inodes_count; 23211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_first_data_block; 23311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_log_block_size; 23411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_log_frag_size; 23511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_blocks_per_group; 23611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_frags_per_group; 23711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_inodes_per_group; 23811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_mtime; 23911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_wtime; 24011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_mnt_count; 24111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_max_mnt_count; 24211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_magic; 24311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_state; 24411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_errors; 24511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_minor_rev_level; 24611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_lastcheck; 24711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_checkinterval; 24811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_creator_os; 24911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_rev_level; 25011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_def_resuid; 25111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_def_resgid; 25211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 25311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_first_ino; 25411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_inode_size; 25511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 s_block_group_nr; 25611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_feature_compat; 25711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_feature_incompat; 25811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_feature_ro_compat; 25911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 s_uuid[16]; 26011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char s_volume_name[16]; 26111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char s_last_mounted[64]; 26211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_algorithm_usage_bitmap; 26311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 26411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 s_prealloc_blocks; 26511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 s_prealloc_dir_blocks; 26611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 s_padding1; 26711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 26811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 s_journal_uuid[16]; 26911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 s_journal_inum; 27011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 s_journal_dev; 27111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 s_last_orphan; 27211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 s_hash_seed[4]; 27311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 s_def_hash_version; 27411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 s_reserved_char_pad; 27511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u16 s_reserved_word_pad; 27611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_default_mount_opts; 27711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 s_first_meta_bg; 27811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u32 s_reserved[190]; 27911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 28011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 28111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_OS_LINUX 0 28211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_OS_HURD 1 28311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_OS_MASIX 2 28411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_OS_FREEBSD 3 28511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_OS_LITES 4 28611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 28711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_GOOD_OLD_REV 0 28811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DYNAMIC_REV 1 28911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 29011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_CURRENT_REV EXT2_GOOD_OLD_REV 29111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_MAX_SUPP_REV EXT2_DYNAMIC_REV 29211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 29311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_GOOD_OLD_INODE_SIZE 128 29411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 29511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_HAS_COMPAT_FEATURE(sb,mask) ( EXT2_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) ) 29611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_HAS_RO_COMPAT_FEATURE(sb,mask) ( EXT2_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) ) 29711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_HAS_INCOMPAT_FEATURE(sb,mask) ( EXT2_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) ) 29811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_SET_COMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask) 29911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_SET_RO_COMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask) 30011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_SET_INCOMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask) 30111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_CLEAR_COMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask) 30211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_CLEAR_RO_COMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask) 30311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_CLEAR_INCOMPAT_FEATURE(sb,mask) EXT2_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask) 30411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 30511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001 30611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_COMPAT_IMAGIC_INODES 0x0002 30711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004 30811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_COMPAT_EXT_ATTR 0x0008 30911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_COMPAT_RESIZE_INO 0x0010 31011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020 31111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_COMPAT_ANY 0xffffffff 31211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 31311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001 31411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002 31511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004 31611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_RO_COMPAT_ANY 0xffffffff 31711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 31811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001 31911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002 32011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 32111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 32211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_INCOMPAT_META_BG 0x0010 32311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_INCOMPAT_ANY 0xffffffff 32411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 32511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR 32611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| EXT2_FEATURE_INCOMPAT_META_BG) 32711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| EXT2_FEATURE_RO_COMPAT_LARGE_FILE| EXT2_FEATURE_RO_COMPAT_BTREE_DIR) 32811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_RO_COMPAT_UNSUPPORTED ~EXT2_FEATURE_RO_COMPAT_SUPP 32911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_FEATURE_INCOMPAT_UNSUPPORTED ~EXT2_FEATURE_INCOMPAT_SUPP 33011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 33111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DEF_RESUID 0 33211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DEF_RESGID 0 33311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 33411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DEFM_DEBUG 0x0001 33511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DEFM_BSDGROUPS 0x0002 33611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DEFM_XATTR_USER 0x0004 33711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DEFM_ACL 0x0008 33811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DEFM_UID16 0x0010 33911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 34011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT3_DEFM_JMODE 0x0060 34111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT3_DEFM_JMODE_DATA 0x0020 34211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT3_DEFM_JMODE_ORDERED 0x0040 34311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT3_DEFM_JMODE_WBACK 0x0060 34411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 34511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_NAME_LEN 255 34611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 34711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct ext2_dir_entry { 34811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 inode; 34911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 rec_len; 35011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 name_len; 35111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char name[EXT2_NAME_LEN]; 35211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 35311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 35411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertstruct ext2_dir_entry_2 { 35511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le32 inode; 35611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __le16 rec_len; 35711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 name_len; 35811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert __u8 file_type; 35911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert char name[EXT2_NAME_LEN]; 36011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 36111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 36211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertenum { 36311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXT2_FT_UNKNOWN, 36411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXT2_FT_REG_FILE, 36511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXT2_FT_DIR, 36611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXT2_FT_CHRDEV, 36711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXT2_FT_BLKDEV, 36811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXT2_FT_FIFO, 36911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXT2_FT_SOCK, 37011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXT2_FT_SYMLINK, 37111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert EXT2_FT_MAX 37211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert}; 37311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 37411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DIR_PAD 4 37511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1) 37611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define EXT2_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT2_DIR_ROUND) & ~EXT2_DIR_ROUND) 37711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 37811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 379