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poky/meta/recipes-devtools/syslinux/syslinux/0001-ext2_fs.h-do-not-carry-an-outdated-copy.patch
Alexander Kanavin 453249e291 e2fsprogs: upgrade 1.47.0 -> 1.47.1 
(From OE-Core rev: 4845c854722bc26ae3667a54288d82c043b7e740)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2024-08-23 09:12:37 +01:00

1198 lines
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From daf017bc98276fecce1893c7e4db70cbd8c8f7a0 Mon Sep 17 00:00:00 2001
From: Alexander Kanavin <alex@linutronix.de>
Date: Fri, 16 Aug 2024 16:59:21 +0200
Subject: [PATCH] ext2_fs.h: do not carry an outdated copy
This copy is no longer compatible with latest e2fsprogs
(which installs a correct version).
Upstream-Status: Inactive-Upstream
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
---
core/fs/ext2/ext2_fs.h | 312 -------------
libinstaller/ext2fs/ext2_fs.h | 856 ----------------------------------
2 files changed, 1168 deletions(-)
delete mode 100644 core/fs/ext2/ext2_fs.h
delete mode 100644 libinstaller/ext2fs/ext2_fs.h
diff --git a/core/fs/ext2/ext2_fs.h b/core/fs/ext2/ext2_fs.h
deleted file mode 100644
index d8d07eb..0000000
--- a/core/fs/ext2/ext2_fs.h
+++ /dev/null
@@ -1,312 +0,0 @@
-#ifndef __EXT2_FS_H
-#define __EXT2_FS_H
-
-#include <stdint.h>
-
-#define EXT2_SUPER_MAGIC 0xEF53
-
-#define EXT2_GOOD_OLD_REV 0 // The good old (original) format
-#define EXT2_DYNAMIC_REV 1 // V2 format w/ dynamic inode sizes
-#define EXT2_GOOD_OLD_INODE_SIZE 128
-
-// Special inode numbers
-#define EXT2_BAD_INO 1 // Bad blocks inode
-#define EXT2_ROOT_INO 2 // Root inode
-#define EXT2_BOOT_LOADER_INO 5 // Boot loader inode
-#define EXT2_UNDEL_DIR_INO 6 // Undelete directory inode
-#define EXT3_RESIZE_INO 7 // Reserved group descriptors inode
-#define EXT3_JOURNAL_INO 8 // Journal inode
-
-// We're readonly, so we only care about incompat features.
-#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_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)
-
-
-/* for EXT4 extent */
-#define EXT4_EXT_MAGIC 0xf30a
-#define EXT4_EXTENTS_FLAG 0x00080000
-
-/*
- * File types and file modes
- */
-#define S_IFDIR 0040000 // Directory
-#define S_IFCHR 0020000 // Character device
-#define S_IFBLK 0060000 // Block device
-#define S_IFREG 0100000 // Regular file
-#define S_IFIFO 0010000 // FIFO
-#define S_IFLNK 0120000 // Symbolic link
-#define S_IFSOCK 0140000 // Socket
-
-#define S_IFSHIFT 12
-
-#define T_IFDIR (S_IFDIR >> S_IFSHIFT)
-#define T_IFCHR (S_IFCHR >> S_IFSHIFT)
-#define T_IFBLK (S_IFBLK >> S_IFSHIFT)
-#define T_IFREG (S_IFREG >> S_IFSHIFT)
-#define T_IFIFO (S_IFIFO >> S_IFSHIFT)
-#define T_IFLNK (S_IFLNK >> S_IFSHIFT)
-#define T_IFSOCK (S_IFSOCK >> S_IFSHIFT)
-
-
-#define ext2_group_desc_lg2size 5
-
-
-
-/*
- * super block structure:
- * include/linux/ext2_fs.h
- */
-struct ext2_super_block {
- uint32_t s_inodes_count; /* Inodes count */
- uint32_t s_blocks_count; /* Blocks count */
- uint32_t s_r_blocks_count; /* Reserved blocks count */
- uint32_t s_free_blocks_count; /* Free blocks count */
- uint32_t s_free_inodes_count; /* Free inodes count */
- uint32_t s_first_data_block; /* First Data Block */
- uint32_t s_log_block_size; /* Block size */
- uint32_t s_log_frag_size; /* Fragment size */
- uint32_t s_blocks_per_group; /* # Blocks per group */
- uint32_t s_frags_per_group; /* # Fragments per group */
- uint32_t s_inodes_per_group; /* # Inodes per group */
- uint32_t s_mtime; /* Mount time */
- uint32_t s_wtime; /* Write time */
- uint16_t s_mnt_count; /* Mount count */
- int16_t s_max_mnt_count; /* Maximal mount count */
- uint16_t s_magic; /* Magic signature */
- uint16_t s_state; /* File system state */
- uint16_t s_errors; /* Behaviour when detecting errors */
- uint16_t s_minor_rev_level;
- uint32_t s_lastcheck; /* time of last check */
- uint32_t s_checkinterval; /* max. time between checks */
- uint32_t s_creator_os; /* OS */
- uint32_t s_rev_level; /* Revision level */
- uint16_t s_def_resuid; /* Default uid for reserved blocks */
- uint16_t s_def_resgid; /* Default gid for reserved blocks */
-
- uint32_t s_first_ino; /* First non-reserved inode */
- uint16_t s_inode_size; /* size of inode structure */
- uint16_t s_block_group_nr; /* block group # of this superblock */
- uint32_t s_feature_compat; /* compatible feature set */
- uint32_t s_feature_incompat; /* incompatible feature set */
- uint32_t s_feature_ro_compat; /* readonly-compatible feature set */
- uint8_t s_uuid[16]; /* 128-bit uuid for volume */
- char s_volume_name[16]; /* volume name */
- char s_last_mounted[64]; /* directory where last mounted */
- uint32_t s_algorithm_usage_bitmap; /* For compression */
- uint8_t s_prealloc_blocks; /* Nr of blocks to try to preallocate*/
- uint8_t s_prealloc_dir_blocks;
- uint16_t s_reserved_gdt_blocks; /* Per group desc for online growth */
- /*
- * Journaling support valid if EXT4_FEATURE_COMPAT_HAS_JOURNAL set.
- */
- uint8_t s_journal_uuid[16]; /* uuid of journal superblock */
- uint32_t s_journal_inum; /* inode number of journal file */
- uint32_t s_journal_dev; /* device number of journal file */
- uint32_t s_last_orphan; /* start of list of inodes to delete */
- uint32_t s_hash_seed[4]; /* HTREE hash seed */
- uint8_t s_def_hash_version; /* Default hash version to use */
- uint8_t s_reserved_char_pad;
- uint16_t s_desc_size; /* size of group descriptor */
- uint32_t s_default_mount_opts;
- uint32_t s_first_meta_bg; /* First metablock block group */
- uint32_t s_mkfs_time; /* When the filesystem was created */
- uint32_t s_jnl_blocks[17]; /* Backup of the journal inode */
- /* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */
- uint32_t s_blocks_count_hi; /* Blocks count */
- uint32_t s_r_blocks_count_hi; /* Reserved blocks count */
- uint32_t s_free_blocks_count_hi;/* Free blocks count */
- uint16_t s_min_extra_isize; /* All inodes have at least # bytes */
- uint16_t s_want_extra_isize; /* New inodes should reserve # bytes */
- uint32_t s_flags; /* Miscellaneous flags */
- uint16_t s_raid_stride; /* RAID stride */
- uint16_t s_mmp_interval; /* # seconds to wait in MMP checking */
- uint64_t s_mmp_block; /* Block for multi-mount protection */
- uint32_t s_raid_stripe_width; /* blocks on all data disks (N*stride)*/
- uint8_t s_log_groups_per_flex; /* FLEX_BG group size */
- uint8_t s_reserved_char_pad2;
- uint16_t s_reserved_pad;
- uint32_t s_reserved[162]; /* Padding to the end of the block */
-};
-
-/*******************************************************************************
-#ifndef DEPEND
-#if ext2_super_block_size != 1024
-#error ext2_super_block definition bogus
-#endif
-#endif
-*******************************************************************************/
-
-/*
- * ext2 group desc structure:
- */
-struct ext2_group_desc {
- uint32_t bg_block_bitmap; /* Blocks bitmap block */
- uint32_t bg_inode_bitmap; /* Inodes bitmap block */
- uint32_t bg_inode_table; /* Inodes table block */
- uint16_t bg_free_blocks_count; /* Free blocks count */
- uint16_t bg_free_inodes_count; /* Free inodes count */
- uint16_t bg_used_dirs_count; /* Directories count */
- uint16_t bg_pad;
- uint32_t bg_reserved[3];
-};
-
-/*******************************************************************************
-#ifndef DEPEND
-#if ext2_group_desc_size != 32
-#error ext2_group_desc definition bogus
-#endif
-#endif
-*******************************************************************************/
-
-
-/*
- * ext2 inode structure:
- */
-struct ext2_inode {
- uint16_t i_mode; /* File mode */
- uint16_t i_uid; /* Owner Uid */
- uint32_t i_size; /* 4: Size in bytes */
- uint32_t i_atime; /* Access time */
- uint32_t i_ctime; /* 12: Creation time */
- uint32_t i_mtime; /* Modification time */
- uint32_t i_dtime; /* 20: Deletion Time */
- uint16_t i_gid; /* Group Id */
- uint16_t i_links_count; /* 24: Links count */
- uint32_t i_blocks; /* Blocks count */
- uint32_t i_flags; /* 32: File flags */
- uint32_t l_i_reserved1;
- uint32_t i_block[EXT2_N_BLOCKS]; /* 40: Pointers to blocks */
- uint32_t i_version; /* File version (for NFS) */
- uint32_t i_file_acl; /* File ACL */
- uint32_t i_dir_acl; /* Directory ACL */
- uint32_t i_faddr; /* Fragment address */
- uint8_t l_i_frag; /* Fragment number */
- uint8_t l_i_fsize; /* Fragment size */
- uint16_t i_pad1;
- uint32_t l_i_reserved2[2];
-};
-
-/*******************************************************************************
-#ifndef DEPEND
-#if ext2_inode_size != 128
-#error ext2_inode definition bogus
-#endif
-#endif
-*******************************************************************************/
-
-
-#define EXT2_NAME_LEN 255
-struct ext2_dir_entry {
- unsigned int d_inode; /* Inode number */
- unsigned short d_rec_len; /* Directory entry length */
- unsigned char d_name_len; /* Name length */
- unsigned char d_file_type;
- char d_name[EXT2_NAME_LEN]; /* File name */
-};
-
-/*******************************************************************************
-#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)
-*******************************************************************************/
-
-
-
-
-
-
-/*
- * This is the extent on-disk structure.
- * It's used at the bottom of the tree.
- */
-struct ext4_extent {
- uint32_t ee_block; /* first logical block extent covers */
- uint16_t ee_len; /* number of blocks covered by extent */
- uint16_t ee_start_hi; /* high 16 bits of physical block */
- uint32_t ee_start_lo; /* low 32 bits of physical block */
-};
-
-/*
- * This is index on-disk structure.
- * It's used at all the levels except the bottom.
- */
-struct ext4_extent_idx {
- uint32_t ei_block; /* index covers logical blocks from 'block' */
- uint32_t ei_leaf_lo; /* pointer to the physical block of the next *
- * level. leaf or next index could be there */
- uint16_t ei_leaf_hi; /* high 16 bits of physical block */
- uint16_t ei_unused;
-};
-
-/*
- * Each block (leaves and indexes), even inode-stored has header.
- */
-struct ext4_extent_header {
- uint16_t eh_magic; /* probably will support different formats */
- uint16_t eh_entries; /* number of valid entries */
- uint16_t eh_max; /* capacity of store in entries */
- uint16_t eh_depth; /* has tree real underlying blocks? */
- uint32_t eh_generation; /* generation of the tree */
-};
-
-
-
-#define EXT4_FIRST_EXTENT(header) ( (struct ext4_extent *)(header + 1) )
-#define EXT4_FIRST_INDEX(header) ( (struct ext4_extent_idx *) (header + 1) )
-
-
-/*
- * The ext2 super block information in memory
- */
-struct ext2_sb_info {
- uint32_t s_inodes_per_block;/* Number of inodes per block */
- uint32_t s_inodes_per_group;/* Number of inodes in a group */
- uint32_t s_blocks_per_group;/* Number of blocks in a group */
- uint32_t s_desc_per_block; /* Number of group descriptors per block */
- uint32_t s_groups_count; /* Number of groups in the fs */
- uint32_t s_first_data_block; /* First Data Block */
- int s_inode_size;
- uint8_t s_uuid[16]; /* 128-bit uuid for volume */
- int s_desc_size; /* size of group descriptor */
-};
-
-static inline struct ext2_sb_info *EXT2_SB(struct fs_info *fs)
-{
- return fs->fs_info;
-}
-
-#define EXT2_BLOCKS_PER_GROUP(fs) (EXT2_SB(fs)->s_blocks_per_group)
-#define EXT2_INODES_PER_GROUP(fs) (EXT2_SB(fs)->s_inodes_per_group)
-#define EXT2_INODES_PER_BLOCK(fs) (EXT2_SB(fs)->s_inodes_per_block)
-#define EXT2_DESC_PER_BLOCK(fs) (EXT2_SB(fs)->s_desc_per_block)
-
-/*
- * ext2 private inode information
- */
-struct ext2_pvt_inode {
- union {
- uint32_t i_block[EXT2_N_BLOCKS];
- struct ext4_extent_header i_extent_hdr;
- };
-};
-
-#define PVT(i) ((struct ext2_pvt_inode *)((i)->pvt))
-
-/*
- * functions
- */
-block_t ext2_bmap(struct inode *, block_t, size_t *);
-int ext2_next_extent(struct inode *, uint32_t);
-
-#endif /* ext2_fs.h */
diff --git a/libinstaller/ext2fs/ext2_fs.h b/libinstaller/ext2fs/ext2_fs.h
deleted file mode 100644
index e52c9e1..0000000
--- a/libinstaller/ext2fs/ext2_fs.h
+++ /dev/null
@@ -1,856 +0,0 @@
-/*
- * linux/include/linux/ext2_fs.h
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- * from
- *
- * linux/include/linux/minix_fs.h
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- */
-
-#ifndef _EXT2FS_EXT2_FS_H
-#define _EXT2FS_EXT2_FS_H
-
-#include <linux/types.h>
-
-/*
- * The second extended filesystem constants/structures
- */
-
-/*
- * Define EXT2FS_DEBUG to produce debug messages
- */
-#undef EXT2FS_DEBUG
-
-/*
- * Define EXT2_PREALLOCATE to preallocate data blocks for expanding files
- */
-#define EXT2_PREALLOCATE
-#define EXT2_DEFAULT_PREALLOC_BLOCKS 8
-
-/*
- * The second extended file system version
- */
-#define EXT2FS_DATE "95/08/09"
-#define EXT2FS_VERSION "0.5b"
-
-/*
- * Special inode numbers
- */
-#define EXT2_BAD_INO 1 /* Bad blocks inode */
-#define EXT2_ROOT_INO 2 /* Root inode */
-#define EXT4_USR_QUOTA_INO 3 /* User quota inode */
-#define EXT4_GRP_QUOTA_INO 4 /* Group quota inode */
-#define EXT2_BOOT_LOADER_INO 5 /* Boot loader inode */
-#define EXT2_UNDEL_DIR_INO 6 /* Undelete directory inode */
-#define EXT2_RESIZE_INO 7 /* Reserved group descriptors inode */
-#define EXT2_JOURNAL_INO 8 /* Journal inode */
-#define EXT2_EXCLUDE_INO 9 /* The "exclude" inode, for snapshots */
-#define EXT4_REPLICA_INO 10 /* Used by non-upstream feature */
-
-/* First non-reserved inode for old ext2 filesystems */
-#define EXT2_GOOD_OLD_FIRST_INO 11
-
-/*
- * The second extended file system magic number
- */
-#define EXT2_SUPER_MAGIC 0xEF53
-
-#ifdef __KERNEL__
-#define EXT2_SB(sb) (&((sb)->u.ext2_sb))
-#else
-/* Assume that user mode programs are passing in an ext2fs superblock, not
- * a kernel struct super_block. This will allow us to call the feature-test
- * macros from user land. */
-#define EXT2_SB(sb) (sb)
-#endif
-
-/*
- * Maximal count of links to a file
- */
-#define EXT2_LINK_MAX 65000
-
-/*
- * Macro-instructions used to manage several block sizes
- */
-#define EXT2_MIN_BLOCK_LOG_SIZE 10 /* 1024 */
-#define EXT2_MAX_BLOCK_LOG_SIZE 16 /* 65536 */
-#define EXT2_MIN_BLOCK_SIZE (1 << EXT2_MIN_BLOCK_LOG_SIZE)
-#define EXT2_MAX_BLOCK_SIZE (1 << EXT2_MAX_BLOCK_LOG_SIZE)
-#ifdef __KERNEL__
-#define EXT2_BLOCK_SIZE(s) ((s)->s_blocksize)
-#define EXT2_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
-#define EXT2_ADDR_PER_BLOCK_BITS(s) (EXT2_SB(s)->addr_per_block_bits)
-#define EXT2_INODE_SIZE(s) (EXT2_SB(s)->s_inode_size)
-#define EXT2_FIRST_INO(s) (EXT2_SB(s)->s_first_ino)
-#else
-#define EXT2_BLOCK_SIZE(s) (EXT2_MIN_BLOCK_SIZE << (s)->s_log_block_size)
-#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)
-#endif
-#define EXT2_ADDR_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / sizeof(__u32))
-
-/*
- * Macro-instructions used to manage allocation clusters
- */
-#define EXT2_MIN_CLUSTER_LOG_SIZE EXT2_MIN_BLOCK_LOG_SIZE
-#define EXT2_MAX_CLUSTER_LOG_SIZE 29 /* 512MB */
-#define EXT2_MIN_CLUSTER_SIZE EXT2_MIN_BLOCK_SIZE
-#define EXT2_MAX_CLUSTER_SIZE (1 << EXT2_MAX_CLUSTER_LOG_SIZE)
-#define EXT2_CLUSTER_SIZE(s) (EXT2_MIN_BLOCK_SIZE << \
- (s)->s_log_cluster_size)
-#define EXT2_CLUSTER_SIZE_BITS(s) ((s)->s_log_cluster_size + 10)
-
-/*
- * Macro-instructions used to manage fragments
- *
- * Note: for backwards compatibility only, for the dump program.
- * Ext2/3/4 will never support fragments....
- */
-#define EXT2_MIN_FRAG_SIZE EXT2_MIN_BLOCK_SIZE
-#define EXT2_MAX_FRAG_SIZE EXT2_MAX_BLOCK_SIZE
-#define EXT2_MIN_FRAG_LOG_SIZE EXT2_MIN_BLOCK_LOG_SIZE
-#define EXT2_FRAG_SIZE(s) EXT2_BLOCK_SIZE(s)
-#define EXT2_FRAGS_PER_BLOCK(s) 1
-
-/*
- * ACL structures
- */
-struct ext2_acl_header /* Header of Access Control Lists */
-{
- __u32 aclh_size;
- __u32 aclh_file_count;
- __u32 aclh_acle_count;
- __u32 aclh_first_acle;
-};
-
-struct ext2_acl_entry /* Access Control List Entry */
-{
- __u32 acle_size;
- __u16 acle_perms; /* Access permissions */
- __u16 acle_type; /* Type of entry */
- __u16 acle_tag; /* User or group identity */
- __u16 acle_pad1;
- __u32 acle_next; /* Pointer on next entry for the */
- /* same inode or on next free entry */
-};
-
-/*
- * Structure of a blocks group descriptor
- */
-struct ext2_group_desc
-{
- __u32 bg_block_bitmap; /* Blocks bitmap block */
- __u32 bg_inode_bitmap; /* Inodes bitmap block */
- __u32 bg_inode_table; /* Inodes table block */
- __u16 bg_free_blocks_count; /* Free blocks count */
- __u16 bg_free_inodes_count; /* Free inodes count */
- __u16 bg_used_dirs_count; /* Directories count */
- __u16 bg_flags;
- __u32 bg_exclude_bitmap_lo; /* Exclude bitmap for snapshots */
- __u16 bg_block_bitmap_csum_lo;/* crc32c(s_uuid+grp_num+bitmap) LSB */
- __u16 bg_inode_bitmap_csum_lo;/* crc32c(s_uuid+grp_num+bitmap) LSB */
- __u16 bg_itable_unused; /* Unused inodes count */
- __u16 bg_checksum; /* crc16(s_uuid+grouo_num+group_desc)*/
-};
-
-/*
- * Structure of a blocks group descriptor
- */
-struct ext4_group_desc
-{
- __u32 bg_block_bitmap; /* Blocks bitmap block */
- __u32 bg_inode_bitmap; /* Inodes bitmap block */
- __u32 bg_inode_table; /* Inodes table block */
- __u16 bg_free_blocks_count; /* Free blocks count */
- __u16 bg_free_inodes_count; /* Free inodes count */
- __u16 bg_used_dirs_count; /* Directories count */
- __u16 bg_flags; /* EXT4_BG_flags (INODE_UNINIT, etc) */
- __u32 bg_exclude_bitmap_lo; /* Exclude bitmap for snapshots */
- __u16 bg_block_bitmap_csum_lo;/* crc32c(s_uuid+grp_num+bitmap) LSB */
- __u16 bg_inode_bitmap_csum_lo;/* crc32c(s_uuid+grp_num+bitmap) LSB */
- __u16 bg_itable_unused; /* Unused inodes count */
- __u16 bg_checksum; /* crc16(sb_uuid+group+desc) */
- __u32 bg_block_bitmap_hi; /* Blocks bitmap block MSB */
- __u32 bg_inode_bitmap_hi; /* Inodes bitmap block MSB */
- __u32 bg_inode_table_hi; /* Inodes table block MSB */
- __u16 bg_free_blocks_count_hi;/* Free blocks count MSB */
- __u16 bg_free_inodes_count_hi;/* Free inodes count MSB */
- __u16 bg_used_dirs_count_hi; /* Directories count MSB */
- __u16 bg_itable_unused_hi; /* Unused inodes count MSB */
- __u32 bg_exclude_bitmap_hi; /* Exclude bitmap block MSB */
- __u16 bg_block_bitmap_csum_hi;/* crc32c(s_uuid+grp_num+bitmap) MSB */
- __u16 bg_inode_bitmap_csum_hi;/* crc32c(s_uuid+grp_num+bitmap) MSB */
- __u32 bg_reserved;
-};
-
-#define EXT2_BG_INODE_UNINIT 0x0001 /* Inode table/bitmap not initialized */
-#define EXT2_BG_BLOCK_UNINIT 0x0002 /* Block bitmap not initialized */
-#define EXT2_BG_INODE_ZEROED 0x0004 /* On-disk itable initialized to zero */
-
-/*
- * Data structures used by the directory indexing feature
- *
- * Note: all of the multibyte integer fields are little endian.
- */
-
-/*
- * Note: dx_root_info is laid out so that if it should somehow get
- * overlaid by a dirent the two low bits of the hash version will be
- * zero. Therefore, the hash version mod 4 should never be 0.
- * Sincerely, the paranoia department.
- */
-struct ext2_dx_root_info {
- __u32 reserved_zero;
- __u8 hash_version; /* 0 now, 1 at release */
- __u8 info_length; /* 8 */
- __u8 indirect_levels;
- __u8 unused_flags;
-};
-
-#define EXT2_HASH_LEGACY 0
-#define EXT2_HASH_HALF_MD4 1
-#define EXT2_HASH_TEA 2
-#define EXT2_HASH_LEGACY_UNSIGNED 3 /* reserved for userspace lib */
-#define EXT2_HASH_HALF_MD4_UNSIGNED 4 /* reserved for userspace lib */
-#define EXT2_HASH_TEA_UNSIGNED 5 /* reserved for userspace lib */
-
-#define EXT2_HASH_FLAG_INCOMPAT 0x1
-
-struct ext2_dx_entry {
- __u32 hash;
- __u32 block;
-};
-
-struct ext2_dx_countlimit {
- __u16 limit;
- __u16 count;
-};
-
-
-/*
- * Macro-instructions used to manage group descriptors
- */
-#define EXT2_MIN_DESC_SIZE 32
-#define EXT2_MIN_DESC_SIZE_64BIT 64
-#define EXT2_MAX_DESC_SIZE EXT2_MIN_BLOCK_SIZE
-#define EXT2_DESC_SIZE(s) \
- ((EXT2_SB(s)->s_feature_incompat & EXT4_FEATURE_INCOMPAT_64BIT) ? \
- (s)->s_desc_size : EXT2_MIN_DESC_SIZE)
-
-#define EXT2_BLOCKS_PER_GROUP(s) (EXT2_SB(s)->s_blocks_per_group)
-#define EXT2_INODES_PER_GROUP(s) (EXT2_SB(s)->s_inodes_per_group)
-#define EXT2_CLUSTERS_PER_GROUP(s) (EXT2_SB(s)->s_clusters_per_group)
-#define EXT2_INODES_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s)/EXT2_INODE_SIZE(s))
-/* limits imposed by 16-bit value gd_free_{blocks,inode}_count */
-#define EXT2_MAX_BLOCKS_PER_GROUP(s) ((((unsigned) 1 << 16) - 8) * \
- (EXT2_CLUSTER_SIZE(s) / \
- EXT2_BLOCK_SIZE(s)))
-#define EXT2_MAX_CLUSTERS_PER_GROUP(s) (((unsigned) 1 << 16) - 8)
-#define EXT2_MAX_INODES_PER_GROUP(s) (((unsigned) 1 << 16) - \
- EXT2_INODES_PER_BLOCK(s))
-#ifdef __KERNEL__
-#define EXT2_DESC_PER_BLOCK(s) (EXT2_SB(s)->s_desc_per_block)
-#define EXT2_DESC_PER_BLOCK_BITS(s) (EXT2_SB(s)->s_desc_per_block_bits)
-#else
-#define EXT2_DESC_PER_BLOCK(s) (EXT2_BLOCK_SIZE(s) / EXT2_DESC_SIZE(s))
-#endif
-
-/*
- * Constants relative to the data blocks
- */
-#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)
-
-/*
- * Inode flags
- */
-#define EXT2_SECRM_FL 0x00000001 /* Secure deletion */
-#define EXT2_UNRM_FL 0x00000002 /* Undelete */
-#define EXT2_COMPR_FL 0x00000004 /* Compress file */
-#define EXT2_SYNC_FL 0x00000008 /* Synchronous updates */
-#define EXT2_IMMUTABLE_FL 0x00000010 /* Immutable file */
-#define EXT2_APPEND_FL 0x00000020 /* writes to file may only append */
-#define EXT2_NODUMP_FL 0x00000040 /* do not dump file */
-#define EXT2_NOATIME_FL 0x00000080 /* do not update atime */
-/* Reserved for compression usage... */
-#define EXT2_DIRTY_FL 0x00000100
-#define EXT2_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
-#define EXT2_NOCOMPR_FL 0x00000400 /* Access raw compressed data */
-#define EXT2_ECOMPR_FL 0x00000800 /* Compression error */
-/* End compression flags --- maybe not all used */
-#define EXT2_BTREE_FL 0x00001000 /* btree format dir */
-#define EXT2_INDEX_FL 0x00001000 /* hash-indexed directory */
-#define EXT2_IMAGIC_FL 0x00002000
-#define EXT3_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
-#define EXT2_NOTAIL_FL 0x00008000 /* file tail should not be merged */
-#define EXT2_DIRSYNC_FL 0x00010000 /* Synchronous directory modifications */
-#define EXT2_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
-#define EXT4_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
-#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
-#define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
-/* EXT4_EOFBLOCKS_FL 0x00400000 was here */
-#define EXT4_SNAPFILE_FL 0x01000000 /* Inode is a snapshot */
-#define EXT4_SNAPFILE_DELETED_FL 0x04000000 /* Snapshot is being deleted */
-#define EXT4_SNAPFILE_SHRUNK_FL 0x08000000 /* Snapshot shrink has completed */
-#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
-
-#define EXT2_FL_USER_VISIBLE 0x004BDFFF /* User visible flags */
-#define EXT2_FL_USER_MODIFIABLE 0x004B80FF /* User modifiable flags */
-
-/*
- * ioctl commands
- */
-
-/* Used for online resize */
-struct ext2_new_group_input {
- __u32 group; /* Group number for this data */
- __u32 block_bitmap; /* Absolute block number of block bitmap */
- __u32 inode_bitmap; /* Absolute block number of inode bitmap */
- __u32 inode_table; /* Absolute block number of inode table start */
- __u32 blocks_count; /* Total number of blocks in this group */
- __u16 reserved_blocks; /* Number of reserved blocks in this group */
- __u16 unused; /* Number of reserved GDT blocks in group */
-};
-
-struct ext4_new_group_input {
- __u32 group; /* Group number for this data */
- __u64 block_bitmap; /* Absolute block number of block bitmap */
- __u64 inode_bitmap; /* Absolute block number of inode bitmap */
- __u64 inode_table; /* Absolute block number of inode table start */
- __u32 blocks_count; /* Total number of blocks in this group */
- __u16 reserved_blocks; /* Number of reserved blocks in this group */
- __u16 unused;
-};
-
-#ifdef __GNU__ /* Needed for the Hurd */
-#define _IOT_ext2_new_group_input _IOT (_IOTS(__u32), 5, _IOTS(__u16), 2, 0, 0)
-#endif
-
-#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)
-#define EXT2_IOC_GETVERSION_NEW _IOR('f', 3, long)
-#define EXT2_IOC_SETVERSION_NEW _IOW('f', 4, long)
-#define EXT2_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
-#define EXT2_IOC_GROUP_ADD _IOW('f', 8,struct ext2_new_group_input)
-#define EXT4_IOC_GROUP_ADD _IOW('f', 8,struct ext4_new_group_input)
-#define EXT4_IOC_RESIZE_FS _IOW('f', 16, __u64)
-
-/*
- * Structure of an inode on the disk
- */
-struct ext2_inode {
- __u16 i_mode; /* File mode */
- __u16 i_uid; /* Low 16 bits of Owner Uid */
- __u32 i_size; /* Size in bytes */
- __u32 i_atime; /* Access time */
- __u32 i_ctime; /* Inode change time */
- __u32 i_mtime; /* Modification time */
- __u32 i_dtime; /* Deletion Time */
- __u16 i_gid; /* Low 16 bits of Group Id */
- __u16 i_links_count; /* Links count */
- __u32 i_blocks; /* Blocks count */
- __u32 i_flags; /* File flags */
- union {
- struct {
- __u32 l_i_version; /* was l_i_reserved1 */
- } linux1;
- struct {
- __u32 h_i_translator;
- } hurd1;
- } osd1; /* OS dependent 1 */
- __u32 i_block[EXT2_N_BLOCKS];/* Pointers to blocks */
- __u32 i_generation; /* File version (for NFS) */
- __u32 i_file_acl; /* File ACL */
- __u32 i_size_high; /* Formerly i_dir_acl, directory ACL */
- __u32 i_faddr; /* Fragment address */
- union {
- struct {
- __u16 l_i_blocks_hi;
- __u16 l_i_file_acl_high;
- __u16 l_i_uid_high; /* these 2 fields */
- __u16 l_i_gid_high; /* were reserved2[0] */
- __u16 l_i_checksum_lo; /* crc32c(uuid+inum+inode) */
- __u16 l_i_reserved;
- } linux2;
- struct {
- __u8 h_i_frag; /* Fragment number */
- __u8 h_i_fsize; /* Fragment size */
- __u16 h_i_mode_high;
- __u16 h_i_uid_high;
- __u16 h_i_gid_high;
- __u32 h_i_author;
- } hurd2;
- } osd2; /* OS dependent 2 */
-};
-
-/*
- * Permanent part of an large inode on the disk
- */
-struct ext2_inode_large {
- __u16 i_mode; /* File mode */
- __u16 i_uid; /* Low 16 bits of Owner Uid */
- __u32 i_size; /* Size in bytes */
- __u32 i_atime; /* Access time */
- __u32 i_ctime; /* Inode Change time */
- __u32 i_mtime; /* Modification time */
- __u32 i_dtime; /* Deletion Time */
- __u16 i_gid; /* Low 16 bits of Group Id */
- __u16 i_links_count; /* Links count */
- __u32 i_blocks; /* Blocks count */
- __u32 i_flags; /* File flags */
- union {
- struct {
- __u32 l_i_version; /* was l_i_reserved1 */
- } linux1;
- struct {
- __u32 h_i_translator;
- } hurd1;
- } osd1; /* OS dependent 1 */
- __u32 i_block[EXT2_N_BLOCKS];/* Pointers to blocks */
- __u32 i_generation; /* File version (for NFS) */
- __u32 i_file_acl; /* File ACL */
- __u32 i_size_high; /* Formerly i_dir_acl, directory ACL */
- __u32 i_faddr; /* Fragment address */
- union {
- struct {
- __u16 l_i_blocks_hi;
- __u16 l_i_file_acl_high;
- __u16 l_i_uid_high; /* these 2 fields */
- __u16 l_i_gid_high; /* were reserved2[0] */
- __u16 l_i_checksum_lo; /* crc32c(uuid+inum+inode) */
- __u16 l_i_reserved;
- } linux2;
- struct {
- __u8 h_i_frag; /* Fragment number */
- __u8 h_i_fsize; /* Fragment size */
- __u16 h_i_mode_high;
- __u16 h_i_uid_high;
- __u16 h_i_gid_high;
- __u32 h_i_author;
- } hurd2;
- } osd2; /* OS dependent 2 */
- __u16 i_extra_isize;
- __u16 i_checksum_hi; /* crc32c(uuid+inum+inode) */
- __u32 i_ctime_extra; /* extra Change time (nsec << 2 | epoch) */
- __u32 i_mtime_extra; /* extra Modification time (nsec << 2 | epoch) */
- __u32 i_atime_extra; /* extra Access time (nsec << 2 | epoch) */
- __u32 i_crtime; /* File creation time */
- __u32 i_crtime_extra; /* extra File creation time (nsec << 2 | epoch)*/
- __u32 i_version_hi; /* high 32 bits for 64-bit version */
-};
-
-#define i_dir_acl i_size_high
-
-#if defined(__KERNEL__) || defined(__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
-#else
-#if defined(__GNU__)
-
-#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 /* __GNU__ */
-#endif /* defined(__KERNEL__) || defined(__linux__) */
-
-#define inode_uid(inode) ((inode).i_uid | (inode).osd2.linux2.l_i_uid_high << 16)
-#define inode_gid(inode) ((inode).i_gid | (inode).osd2.linux2.l_i_gid_high << 16)
-#define ext2fs_set_i_uid_high(inode,x) ((inode).osd2.linux2.l_i_uid_high = (x))
-#define ext2fs_set_i_gid_high(inode,x) ((inode).osd2.linux2.l_i_gid_high = (x))
-
-/*
- * File system states
- */
-#define EXT2_VALID_FS 0x0001 /* Unmounted cleanly */
-#define EXT2_ERROR_FS 0x0002 /* Errors detected */
-#define EXT3_ORPHAN_FS 0x0004 /* Orphans being recovered */
-
-/*
- * Misc. filesystem flags
- */
-#define EXT2_FLAGS_SIGNED_HASH 0x0001 /* Signed dirhash in use */
-#define EXT2_FLAGS_UNSIGNED_HASH 0x0002 /* Unsigned dirhash in use */
-#define EXT2_FLAGS_TEST_FILESYS 0x0004 /* OK for use on development code */
-#define EXT2_FLAGS_IS_SNAPSHOT 0x0010 /* This is a snapshot image */
-#define EXT2_FLAGS_FIX_SNAPSHOT 0x0020 /* Snapshot inodes corrupted */
-#define EXT2_FLAGS_FIX_EXCLUDE 0x0040 /* Exclude bitmaps corrupted */
-
-/*
- * Mount flags
- */
-#define EXT2_MOUNT_CHECK 0x0001 /* Do mount-time checks */
-#define EXT2_MOUNT_GRPID 0x0004 /* Create files with directory's group */
-#define EXT2_MOUNT_DEBUG 0x0008 /* Some debugging messages */
-#define EXT2_MOUNT_ERRORS_CONT 0x0010 /* Continue on errors */
-#define EXT2_MOUNT_ERRORS_RO 0x0020 /* Remount fs ro on errors */
-#define EXT2_MOUNT_ERRORS_PANIC 0x0040 /* Panic on errors */
-#define EXT2_MOUNT_MINIX_DF 0x0080 /* Mimics the Minix statfs */
-#define EXT2_MOUNT_NO_UID32 0x0200 /* Disable 32-bit UIDs */
-
-#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)
-/*
- * Maximal mount counts between two filesystem checks
- */
-#define EXT2_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */
-#define EXT2_DFL_CHECKINTERVAL 0 /* Don't use interval check */
-
-/*
- * Behaviour when detecting errors
- */
-#define EXT2_ERRORS_CONTINUE 1 /* Continue execution */
-#define EXT2_ERRORS_RO 2 /* Remount fs read-only */
-#define EXT2_ERRORS_PANIC 3 /* Panic */
-#define EXT2_ERRORS_DEFAULT EXT2_ERRORS_CONTINUE
-
-#if (__GNUC__ >= 4)
-#define ext4_offsetof(TYPE,MEMBER) __builtin_offsetof(TYPE,MEMBER)
-#else
-#define ext4_offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
-#endif
-
-/*
- * Structure of the super block
- */
-struct ext2_super_block {
- __u32 s_inodes_count; /* Inodes count */
- __u32 s_blocks_count; /* Blocks count */
- __u32 s_r_blocks_count; /* Reserved blocks count */
- __u32 s_free_blocks_count; /* Free blocks count */
- __u32 s_free_inodes_count; /* Free inodes count */
- __u32 s_first_data_block; /* First Data Block */
- __u32 s_log_block_size; /* Block size */
- __u32 s_log_cluster_size; /* Allocation cluster size */
- __u32 s_blocks_per_group; /* # Blocks per group */
- __u32 s_clusters_per_group; /* # Fragments per group */
- __u32 s_inodes_per_group; /* # Inodes per group */
- __u32 s_mtime; /* Mount time */
- __u32 s_wtime; /* Write time */
- __u16 s_mnt_count; /* Mount count */
- __s16 s_max_mnt_count; /* Maximal mount count */
- __u16 s_magic; /* Magic signature */
- __u16 s_state; /* File system state */
- __u16 s_errors; /* Behaviour when detecting errors */
- __u16 s_minor_rev_level; /* minor revision level */
- __u32 s_lastcheck; /* time of last check */
- __u32 s_checkinterval; /* max. time between checks */
- __u32 s_creator_os; /* OS */
- __u32 s_rev_level; /* Revision level */
- __u16 s_def_resuid; /* Default uid for reserved blocks */
- __u16 s_def_resgid; /* Default gid for reserved blocks */
- /*
- * These fields are for EXT2_DYNAMIC_REV superblocks only.
- *
- * Note: the difference between the compatible feature set and
- * the incompatible feature set is that if there is a bit set
- * in the incompatible feature set that the kernel doesn't
- * know about, it should refuse to mount the filesystem.
- *
- * e2fsck's requirements are more strict; if it doesn't know
- * about a feature in either the compatible or incompatible
- * feature set, it must abort and not try to meddle with
- * things it doesn't understand...
- */
- __u32 s_first_ino; /* First non-reserved inode */
- __u16 s_inode_size; /* size of inode structure */
- __u16 s_block_group_nr; /* block group # of this superblock */
- __u32 s_feature_compat; /* compatible feature set */
- __u32 s_feature_incompat; /* incompatible feature set */
- __u32 s_feature_ro_compat; /* readonly-compatible feature set */
- __u8 s_uuid[16]; /* 128-bit uuid for volume */
- char s_volume_name[16]; /* volume name */
- char s_last_mounted[64]; /* directory where last mounted */
- __u32 s_algorithm_usage_bitmap; /* For compression */
- /*
- * Performance hints. Directory preallocation should only
- * happen if the EXT2_FEATURE_COMPAT_DIR_PREALLOC flag is on.
- */
- __u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/
- __u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */
- __u16 s_reserved_gdt_blocks; /* Per group table for online growth */
- /*
- * Journaling support valid if EXT2_FEATURE_COMPAT_HAS_JOURNAL set.
- */
- __u8 s_journal_uuid[16]; /* uuid of journal superblock */
- __u32 s_journal_inum; /* inode number of journal file */
- __u32 s_journal_dev; /* device number of journal file */
- __u32 s_last_orphan; /* start of list of inodes to delete */
- __u32 s_hash_seed[4]; /* HTREE hash seed */
- __u8 s_def_hash_version; /* Default hash version to use */
- __u8 s_jnl_backup_type; /* Default type of journal backup */
- __u16 s_desc_size; /* Group desc. size: INCOMPAT_64BIT */
- __u32 s_default_mount_opts;
- __u32 s_first_meta_bg; /* First metablock group */
- __u32 s_mkfs_time; /* When the filesystem was created */
- __u32 s_jnl_blocks[17]; /* Backup of the journal inode */
- __u32 s_blocks_count_hi; /* Blocks count high 32bits */
- __u32 s_r_blocks_count_hi; /* Reserved blocks count high 32 bits*/
- __u32 s_free_blocks_hi; /* Free blocks count */
- __u16 s_min_extra_isize; /* All inodes have at least # bytes */
- __u16 s_want_extra_isize; /* New inodes should reserve # bytes */
- __u32 s_flags; /* Miscellaneous flags */
- __u16 s_raid_stride; /* RAID stride */
- __u16 s_mmp_update_interval; /* # seconds to wait in MMP checking */
- __u64 s_mmp_block; /* Block for multi-mount protection */
- __u32 s_raid_stripe_width; /* blocks on all data disks (N*stride)*/
- __u8 s_log_groups_per_flex; /* FLEX_BG group size */
- __u8 s_reserved_char_pad;
- __u16 s_reserved_pad; /* Padding to next 32bits */
- __u64 s_kbytes_written; /* nr of lifetime kilobytes written */
- __u32 s_snapshot_inum; /* Inode number of active snapshot */
- __u32 s_snapshot_id; /* sequential ID of active snapshot */
- __u64 s_snapshot_r_blocks_count; /* reserved blocks for active
- snapshot's future use */
- __u32 s_snapshot_list; /* inode number of the head of the on-disk snapshot list */
-#define EXT4_S_ERR_START ext4_offsetof(struct ext2_super_block, s_error_count)
- __u32 s_error_count; /* number of fs errors */
- __u32 s_first_error_time; /* first time an error happened */
- __u32 s_first_error_ino; /* inode involved in first error */
- __u64 s_first_error_block; /* block involved of first error */
- __u8 s_first_error_func[32]; /* function where the error happened */
- __u32 s_first_error_line; /* line number where error happened */
- __u32 s_last_error_time; /* most recent time of an error */
- __u32 s_last_error_ino; /* inode involved in last error */
- __u32 s_last_error_line; /* line number where error happened */
- __u64 s_last_error_block; /* block involved of last error */
- __u8 s_last_error_func[32]; /* function where the error happened */
-#define EXT4_S_ERR_END ext4_offsetof(struct ext2_super_block, s_mount_opts)
- __u8 s_mount_opts[64];
- __u32 s_usr_quota_inum; /* inode number of user quota file */
- __u32 s_grp_quota_inum; /* inode number of group quota file */
- __u32 s_overhead_blocks; /* overhead blocks/clusters in fs */
- __u32 s_reserved[108]; /* Padding to the end of the block */
- __u32 s_checksum; /* crc32c(superblock) */
-};
-
-#define EXT4_S_ERR_LEN (EXT4_S_ERR_END - EXT4_S_ERR_START)
-
-/*
- * Codes for operating systems
- */
-#define EXT2_OS_LINUX 0
-#define EXT2_OS_HURD 1
-#define EXT2_OBSO_OS_MASIX 2
-#define EXT2_OS_FREEBSD 3
-#define EXT2_OS_LITES 4
-
-/*
- * Revision levels
- */
-#define EXT2_GOOD_OLD_REV 0 /* The good old (original) format */
-#define EXT2_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
-
-#define EXT2_CURRENT_REV EXT2_GOOD_OLD_REV
-#define EXT2_MAX_SUPP_REV EXT2_DYNAMIC_REV
-
-#define EXT2_GOOD_OLD_INODE_SIZE 128
-
-/*
- * Journal inode backup types
- */
-#define EXT3_JNL_BACKUP_BLOCKS 1
-
-/*
- * Feature set definitions
- */
-
-#define EXT2_HAS_COMPAT_FEATURE(sb,mask) \
- ( EXT2_SB(sb)->s_feature_compat & (mask) )
-#define EXT2_HAS_RO_COMPAT_FEATURE(sb,mask) \
- ( EXT2_SB(sb)->s_feature_ro_compat & (mask) )
-#define EXT2_HAS_INCOMPAT_FEATURE(sb,mask) \
- ( EXT2_SB(sb)->s_feature_incompat & (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_INODE 0x0010
-#define EXT2_FEATURE_COMPAT_DIR_INDEX 0x0020
-#define EXT2_FEATURE_COMPAT_LAZY_BG 0x0040
-/* #define EXT2_FEATURE_COMPAT_EXCLUDE_INODE 0x0080 not used, legacy */
-#define EXT2_FEATURE_COMPAT_EXCLUDE_BITMAP 0x0100
-
-
-#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
-#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
-/* #define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004 not used */
-#define EXT4_FEATURE_RO_COMPAT_HUGE_FILE 0x0008
-#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
-#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
-#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040
-#define EXT4_FEATURE_RO_COMPAT_HAS_SNAPSHOT 0x0080
-#define EXT4_FEATURE_RO_COMPAT_QUOTA 0x0100
-#define EXT4_FEATURE_RO_COMPAT_BIGALLOC 0x0200
-#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
-#define EXT4_FEATURE_RO_COMPAT_REPLICA 0x0800
-
-#define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001
-#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
-#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
-#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
-#define EXT2_FEATURE_INCOMPAT_META_BG 0x0010
-#define EXT3_FEATURE_INCOMPAT_EXTENTS 0x0040
-#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080
-#define EXT4_FEATURE_INCOMPAT_MMP 0x0100
-#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200
-#define EXT4_FEATURE_INCOMPAT_EA_INODE 0x0400
-#define EXT4_FEATURE_INCOMPAT_DIRDATA 0x1000
-
-#define EXT2_FEATURE_COMPAT_SUPP 0
-#define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| \
- EXT4_FEATURE_INCOMPAT_MMP)
-#define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \
- EXT4_FEATURE_RO_COMPAT_DIR_NLINK| \
- EXT2_FEATURE_RO_COMPAT_BTREE_DIR)
-
-/*
- * Default values for user and/or group using reserved blocks
- */
-#define EXT2_DEF_RESUID 0
-#define EXT2_DEF_RESGID 0
-
-/*
- * Default mount options
- */
-#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 EXT4_DEFM_NOBARRIER 0x0100
-#define EXT4_DEFM_BLOCK_VALIDITY 0x0200
-#define EXT4_DEFM_DISCARD 0x0400
-#define EXT4_DEFM_NODELALLOC 0x0800
-
-/*
- * Structure of a directory entry
- */
-#define EXT2_NAME_LEN 255
-
-struct ext2_dir_entry {
- __u32 inode; /* Inode number */
- __u16 rec_len; /* Directory entry length */
- __u16 name_len; /* Name length */
- char name[EXT2_NAME_LEN]; /* File name */
-};
-
-/*
- * The new version of the directory entry. Since EXT2 structures are
- * stored in intel byte order, and the name_len field could never be
- * bigger than 255 chars, it's safe to reclaim the extra byte for the
- * file_type field.
- */
-struct ext2_dir_entry_2 {
- __u32 inode; /* Inode number */
- __u16 rec_len; /* Directory entry length */
- __u8 name_len; /* Name length */
- __u8 file_type;
- char name[EXT2_NAME_LEN]; /* File name */
-};
-
-/*
- * Ext2 directory file types. Only the low 3 bits are used. The
- * other bits are reserved for now.
- */
-#define EXT2_FT_UNKNOWN 0
-#define EXT2_FT_REG_FILE 1
-#define EXT2_FT_DIR 2
-#define EXT2_FT_CHRDEV 3
-#define EXT2_FT_BLKDEV 4
-#define EXT2_FT_FIFO 5
-#define EXT2_FT_SOCK 6
-#define EXT2_FT_SYMLINK 7
-
-#define EXT2_FT_MAX 8
-
-/*
- * EXT2_DIR_PAD defines the directory entries boundaries
- *
- * NOTE: It must be a multiple of 4
- */
-#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)
-
-/*
- * This structure is used for multiple mount protection. It is written
- * into the block number saved in the s_mmp_block field in the superblock.
- * Programs that check MMP should assume that if SEQ_FSCK (or any unknown
- * code above SEQ_MAX) is present then it is NOT safe to use the filesystem,
- * regardless of how old the timestamp is.
- *
- * The timestamp in the MMP structure will be updated by e2fsck at some
- * arbitary intervals (start of passes, after every few groups of inodes
- * in pass1 and pass1b). There is no guarantee that e2fsck is updating
- * the MMP block in a timely manner, and the updates it does are purely
- * for the convenience of the sysadmin and not for automatic validation.
- *
- * Note: Only the mmp_seq value is used to determine whether the MMP block
- * is being updated. The mmp_time, mmp_nodename, and mmp_bdevname
- * fields are only for informational purposes for the administrator,
- * due to clock skew between nodes and hostname HA service takeover.
- */
-#define EXT4_MMP_MAGIC 0x004D4D50U /* ASCII for MMP */
-#define EXT4_MMP_SEQ_CLEAN 0xFF4D4D50U /* mmp_seq value for clean unmount */
-#define EXT4_MMP_SEQ_FSCK 0xE24D4D50U /* mmp_seq value when being fscked */
-#define EXT4_MMP_SEQ_MAX 0xE24D4D4FU /* maximum valid mmp_seq value */
-
-struct mmp_struct {
- __u32 mmp_magic; /* Magic number for MMP */
- __u32 mmp_seq; /* Sequence no. updated periodically */
- __u64 mmp_time; /* Time last updated */
- char mmp_nodename[64]; /* Node which last updated MMP block */
- char mmp_bdevname[32]; /* Bdev which last updated MMP block */
- __u16 mmp_check_interval; /* Changed mmp_check_interval */
- __u16 mmp_pad1;
- __u32 mmp_pad2[227];
-};
-
-/*
- * Default interval for MMP update in seconds.
- */
-#define EXT4_MMP_UPDATE_INTERVAL 5
-
-/*
- * Maximum interval for MMP update in seconds.
- */
-#define EXT4_MMP_MAX_UPDATE_INTERVAL 300
-
-/*
- * Minimum interval for MMP checking in seconds.
- */
-#define EXT4_MMP_MIN_CHECK_INTERVAL 5
-
-#endif /* _EXT2FS_EXT2_FS_H */
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