diff options
Diffstat (limited to 'libc/kernel/common/linux/ext2_fs.h')
| -rw-r--r-- | libc/kernel/common/linux/ext2_fs.h | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/libc/kernel/common/linux/ext2_fs.h b/libc/kernel/common/linux/ext2_fs.h new file mode 100644 index 0000000..c21b09a --- /dev/null +++ b/libc/kernel/common/linux/ext2_fs.h @@ -0,0 +1,378 @@ +/**************************************************************************** + **************************************************************************** + *** + *** 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 |