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PK 2 �Z��SI�. �.
ext2_err.hnu �[��� /*
* ext2_err.h:
* This file is automatically generated; please do not edit it.
*/
#include <et/com_err.h>
#define EXT2_ET_BASE (2133571328L)
#define EXT2_ET_MAGIC_EXT2FS_FILSYS (2133571329L)
#define EXT2_ET_MAGIC_BADBLOCKS_LIST (2133571330L)
#define EXT2_ET_MAGIC_BADBLOCKS_ITERATE (2133571331L)
#define EXT2_ET_MAGIC_INODE_SCAN (2133571332L)
#define EXT2_ET_MAGIC_IO_CHANNEL (2133571333L)
#define EXT2_ET_MAGIC_UNIX_IO_CHANNEL (2133571334L)
#define EXT2_ET_MAGIC_IO_MANAGER (2133571335L)
#define EXT2_ET_MAGIC_BLOCK_BITMAP (2133571336L)
#define EXT2_ET_MAGIC_INODE_BITMAP (2133571337L)
#define EXT2_ET_MAGIC_GENERIC_BITMAP (2133571338L)
#define EXT2_ET_MAGIC_TEST_IO_CHANNEL (2133571339L)
#define EXT2_ET_MAGIC_DBLIST (2133571340L)
#define EXT2_ET_MAGIC_ICOUNT (2133571341L)
#define EXT2_ET_MAGIC_PQ_IO_CHANNEL (2133571342L)
#define EXT2_ET_MAGIC_EXT2_FILE (2133571343L)
#define EXT2_ET_MAGIC_E2IMAGE (2133571344L)
#define EXT2_ET_MAGIC_INODE_IO_CHANNEL (2133571345L)
#define EXT2_ET_MAGIC_EXTENT_HANDLE (2133571346L)
#define EXT2_ET_BAD_MAGIC (2133571347L)
#define EXT2_ET_REV_TOO_HIGH (2133571348L)
#define EXT2_ET_RO_FILSYS (2133571349L)
#define EXT2_ET_GDESC_READ (2133571350L)
#define EXT2_ET_GDESC_WRITE (2133571351L)
#define EXT2_ET_GDESC_BAD_BLOCK_MAP (2133571352L)
#define EXT2_ET_GDESC_BAD_INODE_MAP (2133571353L)
#define EXT2_ET_GDESC_BAD_INODE_TABLE (2133571354L)
#define EXT2_ET_INODE_BITMAP_WRITE (2133571355L)
#define EXT2_ET_INODE_BITMAP_READ (2133571356L)
#define EXT2_ET_BLOCK_BITMAP_WRITE (2133571357L)
#define EXT2_ET_BLOCK_BITMAP_READ (2133571358L)
#define EXT2_ET_INODE_TABLE_WRITE (2133571359L)
#define EXT2_ET_INODE_TABLE_READ (2133571360L)
#define EXT2_ET_NEXT_INODE_READ (2133571361L)
#define EXT2_ET_UNEXPECTED_BLOCK_SIZE (2133571362L)
#define EXT2_ET_DIR_CORRUPTED (2133571363L)
#define EXT2_ET_SHORT_READ (2133571364L)
#define EXT2_ET_SHORT_WRITE (2133571365L)
#define EXT2_ET_DIR_NO_SPACE (2133571366L)
#define EXT2_ET_NO_INODE_BITMAP (2133571367L)
#define EXT2_ET_NO_BLOCK_BITMAP (2133571368L)
#define EXT2_ET_BAD_INODE_NUM (2133571369L)
#define EXT2_ET_BAD_BLOCK_NUM (2133571370L)
#define EXT2_ET_EXPAND_DIR_ERR (2133571371L)
#define EXT2_ET_TOOSMALL (2133571372L)
#define EXT2_ET_BAD_BLOCK_MARK (2133571373L)
#define EXT2_ET_BAD_BLOCK_UNMARK (2133571374L)
#define EXT2_ET_BAD_BLOCK_TEST (2133571375L)
#define EXT2_ET_BAD_INODE_MARK (2133571376L)
#define EXT2_ET_BAD_INODE_UNMARK (2133571377L)
#define EXT2_ET_BAD_INODE_TEST (2133571378L)
#define EXT2_ET_FUDGE_BLOCK_BITMAP_END (2133571379L)
#define EXT2_ET_FUDGE_INODE_BITMAP_END (2133571380L)
#define EXT2_ET_BAD_IND_BLOCK (2133571381L)
#define EXT2_ET_BAD_DIND_BLOCK (2133571382L)
#define EXT2_ET_BAD_TIND_BLOCK (2133571383L)
#define EXT2_ET_NEQ_BLOCK_BITMAP (2133571384L)
#define EXT2_ET_NEQ_INODE_BITMAP (2133571385L)
#define EXT2_ET_BAD_DEVICE_NAME (2133571386L)
#define EXT2_ET_MISSING_INODE_TABLE (2133571387L)
#define EXT2_ET_CORRUPT_SUPERBLOCK (2133571388L)
#define EXT2_ET_BAD_GENERIC_MARK (2133571389L)
#define EXT2_ET_BAD_GENERIC_UNMARK (2133571390L)
#define EXT2_ET_BAD_GENERIC_TEST (2133571391L)
#define EXT2_ET_SYMLINK_LOOP (2133571392L)
#define EXT2_ET_CALLBACK_NOTHANDLED (2133571393L)
#define EXT2_ET_BAD_BLOCK_IN_INODE_TABLE (2133571394L)
#define EXT2_ET_UNSUPP_FEATURE (2133571395L)
#define EXT2_ET_RO_UNSUPP_FEATURE (2133571396L)
#define EXT2_ET_LLSEEK_FAILED (2133571397L)
#define EXT2_ET_NO_MEMORY (2133571398L)
#define EXT2_ET_INVALID_ARGUMENT (2133571399L)
#define EXT2_ET_BLOCK_ALLOC_FAIL (2133571400L)
#define EXT2_ET_INODE_ALLOC_FAIL (2133571401L)
#define EXT2_ET_NO_DIRECTORY (2133571402L)
#define EXT2_ET_TOO_MANY_REFS (2133571403L)
#define EXT2_ET_FILE_NOT_FOUND (2133571404L)
#define EXT2_ET_FILE_RO (2133571405L)
#define EXT2_ET_DB_NOT_FOUND (2133571406L)
#define EXT2_ET_DIR_EXISTS (2133571407L)
#define EXT2_ET_UNIMPLEMENTED (2133571408L)
#define EXT2_ET_CANCEL_REQUESTED (2133571409L)
#define EXT2_ET_FILE_TOO_BIG (2133571410L)
#define EXT2_ET_JOURNAL_NOT_BLOCK (2133571411L)
#define EXT2_ET_NO_JOURNAL_SB (2133571412L)
#define EXT2_ET_JOURNAL_TOO_SMALL (2133571413L)
#define EXT2_ET_JOURNAL_UNSUPP_VERSION (2133571414L)
#define EXT2_ET_LOAD_EXT_JOURNAL (2133571415L)
#define EXT2_ET_NO_JOURNAL (2133571416L)
#define EXT2_ET_DIRHASH_UNSUPP (2133571417L)
#define EXT2_ET_BAD_EA_BLOCK_NUM (2133571418L)
#define EXT2_ET_TOO_MANY_INODES (2133571419L)
#define EXT2_ET_NOT_IMAGE_FILE (2133571420L)
#define EXT2_ET_RES_GDT_BLOCKS (2133571421L)
#define EXT2_ET_RESIZE_INODE_CORRUPT (2133571422L)
#define EXT2_ET_SET_BMAP_NO_IND (2133571423L)
#define EXT2_ET_TDB_SUCCESS (2133571424L)
#define EXT2_ET_TDB_ERR_CORRUPT (2133571425L)
#define EXT2_ET_TDB_ERR_IO (2133571426L)
#define EXT2_ET_TDB_ERR_LOCK (2133571427L)
#define EXT2_ET_TDB_ERR_OOM (2133571428L)
#define EXT2_ET_TDB_ERR_EXISTS (2133571429L)
#define EXT2_ET_TDB_ERR_NOLOCK (2133571430L)
#define EXT2_ET_TDB_ERR_EINVAL (2133571431L)
#define EXT2_ET_TDB_ERR_NOEXIST (2133571432L)
#define EXT2_ET_TDB_ERR_RDONLY (2133571433L)
#define EXT2_ET_DBLIST_EMPTY (2133571434L)
#define EXT2_ET_RO_BLOCK_ITERATE (2133571435L)
#define EXT2_ET_MAGIC_EXTENT_PATH (2133571436L)
#define EXT2_ET_MAGIC_GENERIC_BITMAP64 (2133571437L)
#define EXT2_ET_MAGIC_BLOCK_BITMAP64 (2133571438L)
#define EXT2_ET_MAGIC_INODE_BITMAP64 (2133571439L)
#define EXT2_ET_MAGIC_RESERVED_13 (2133571440L)
#define EXT2_ET_MAGIC_RESERVED_14 (2133571441L)
#define EXT2_ET_MAGIC_RESERVED_15 (2133571442L)
#define EXT2_ET_MAGIC_RESERVED_16 (2133571443L)
#define EXT2_ET_MAGIC_RESERVED_17 (2133571444L)
#define EXT2_ET_MAGIC_RESERVED_18 (2133571445L)
#define EXT2_ET_MAGIC_RESERVED_19 (2133571446L)
#define EXT2_ET_EXTENT_HEADER_BAD (2133571447L)
#define EXT2_ET_EXTENT_INDEX_BAD (2133571448L)
#define EXT2_ET_EXTENT_LEAF_BAD (2133571449L)
#define EXT2_ET_EXTENT_NO_SPACE (2133571450L)
#define EXT2_ET_INODE_NOT_EXTENT (2133571451L)
#define EXT2_ET_EXTENT_NO_NEXT (2133571452L)
#define EXT2_ET_EXTENT_NO_PREV (2133571453L)
#define EXT2_ET_EXTENT_NO_UP (2133571454L)
#define EXT2_ET_EXTENT_NO_DOWN (2133571455L)
#define EXT2_ET_NO_CURRENT_NODE (2133571456L)
#define EXT2_ET_OP_NOT_SUPPORTED (2133571457L)
#define EXT2_ET_CANT_INSERT_EXTENT (2133571458L)
#define EXT2_ET_CANT_SPLIT_EXTENT (2133571459L)
#define EXT2_ET_EXTENT_NOT_FOUND (2133571460L)
#define EXT2_ET_EXTENT_NOT_SUPPORTED (2133571461L)
#define EXT2_ET_EXTENT_INVALID_LENGTH (2133571462L)
#define EXT2_ET_IO_CHANNEL_NO_SUPPORT_64 (2133571463L)
#define EXT2_ET_NO_MTAB_FILE (2133571464L)
#define EXT2_ET_CANT_USE_LEGACY_BITMAPS (2133571465L)
#define EXT2_ET_MMP_MAGIC_INVALID (2133571466L)
#define EXT2_ET_MMP_FAILED (2133571467L)
#define EXT2_ET_MMP_FSCK_ON (2133571468L)
#define EXT2_ET_MMP_BAD_BLOCK (2133571469L)
#define EXT2_ET_MMP_UNKNOWN_SEQ (2133571470L)
#define EXT2_ET_MMP_CHANGE_ABORT (2133571471L)
#define EXT2_ET_MMP_OPEN_DIRECT (2133571472L)
#define EXT2_ET_BAD_DESC_SIZE (2133571473L)
#define EXT2_ET_INODE_CSUM_INVALID (2133571474L)
#define EXT2_ET_INODE_BITMAP_CSUM_INVALID (2133571475L)
#define EXT2_ET_EXTENT_CSUM_INVALID (2133571476L)
#define EXT2_ET_DIR_NO_SPACE_FOR_CSUM (2133571477L)
#define EXT2_ET_DIR_CSUM_INVALID (2133571478L)
#define EXT2_ET_EXT_ATTR_CSUM_INVALID (2133571479L)
#define EXT2_ET_SB_CSUM_INVALID (2133571480L)
#define EXT2_ET_UNKNOWN_CSUM (2133571481L)
#define EXT2_ET_MMP_CSUM_INVALID (2133571482L)
#define EXT2_ET_FILE_EXISTS (2133571483L)
#define EXT2_ET_BLOCK_BITMAP_CSUM_INVALID (2133571484L)
#define EXT2_ET_INLINE_DATA_CANT_ITERATE (2133571485L)
#define EXT2_ET_EA_BAD_NAME_LEN (2133571486L)
#define EXT2_ET_EA_BAD_VALUE_SIZE (2133571487L)
#define EXT2_ET_BAD_EA_HASH (2133571488L)
#define EXT2_ET_BAD_EA_HEADER (2133571489L)
#define EXT2_ET_EA_KEY_NOT_FOUND (2133571490L)
#define EXT2_ET_EA_NO_SPACE (2133571491L)
#define EXT2_ET_MISSING_EA_FEATURE (2133571492L)
#define EXT2_ET_NO_INLINE_DATA (2133571493L)
#define EXT2_ET_INLINE_DATA_NO_BLOCK (2133571494L)
#define EXT2_ET_INLINE_DATA_NO_SPACE (2133571495L)
#define EXT2_ET_MAGIC_EA_HANDLE (2133571496L)
#define EXT2_ET_INODE_IS_GARBAGE (2133571497L)
#define EXT2_ET_EA_BAD_VALUE_OFFSET (2133571498L)
#define EXT2_ET_JOURNAL_FLAGS_WRONG (2133571499L)
#define EXT2_ET_UNDO_FILE_CORRUPT (2133571500L)
#define EXT2_ET_UNDO_FILE_WRONG (2133571501L)
#define EXT2_ET_FILESYSTEM_CORRUPTED (2133571502L)
#define EXT2_ET_BAD_CRC (2133571503L)
#define EXT2_ET_CORRUPT_JOURNAL_SB (2133571504L)
#define EXT2_ET_INODE_CORRUPTED (2133571505L)
#define EXT2_ET_EA_INODE_CORRUPTED (2133571506L)
#define EXT2_ET_NO_GDESC (2133571507L)
#define EXT2_FILSYS_CORRUPTED (2133571508L)
extern const struct error_table et_ext2_error_table;
extern void initialize_ext2_error_table(void);
/* For compatibility with Heimdal */
extern void initialize_ext2_error_table_r(struct et_list **list);
#define ERROR_TABLE_BASE_ext2 (2133571328L)
/* for compatibility with older versions... */
#define init_ext2_err_tbl initialize_ext2_error_table
#define ext2_err_base ERROR_TABLE_BASE_ext2
PK 2 �Z�Y��� � ext3_extents.hnu �[��� /*
* Copyright (c) 2003,2004 Cluster File Systems, Inc, info@clusterfs.com
* Written by Alex Tomas <alex@clusterfs.com>
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Library
* General Public License, version 2.
* %End-Header%
*/
#ifndef _LINUX_EXT3_EXTENTS
#define _LINUX_EXT3_EXTENTS
/*
* ext3_inode has i_block array (total 60 bytes)
* first 4 bytes are used to store:
* - tree depth (0 mean there is no tree yet. all extents in the inode)
* - number of alive extents in the inode
*/
/*
* This is extent tail on-disk structure.
* All other extent structures are 12 bytes long. It turns out that
* block_size % 12 >= 4 for at least all powers of 2 greater than 512, which
* covers all valid ext4 block sizes. Therefore, this tail structure can be
* crammed into the end of the block without having to rebalance the tree.
*/
struct ext3_extent_tail {
__le32 et_checksum; /* crc32c(uuid+inum+extent_block) */
};
/*
* this is extent on-disk structure
* it's used at the bottom of the tree
*/
struct ext3_extent {
__le32 ee_block; /* first logical block extent covers */
__le16 ee_len; /* number of blocks covered by extent */
__le16 ee_start_hi; /* high 16 bits of physical block */
__le32 ee_start; /* low 32 bigs of physical block */
};
/*
* this is index on-disk structure
* it's used at all the levels, but the bottom
*/
struct ext3_extent_idx {
__le32 ei_block; /* index covers logical blocks from 'block' */
__le32 ei_leaf; /* pointer to the physical block of the next *
* level. leaf or next index could bet here */
__le16 ei_leaf_hi; /* high 16 bits of physical block */
__le16 ei_unused;
};
/*
* each block (leaves and indexes), even inode-stored has header
*/
struct ext3_extent_header {
__le16 eh_magic; /* probably will support different formats */
__le16 eh_entries; /* number of valid entries */
__le16 eh_max; /* capacity of store in entries */
__le16 eh_depth; /* has tree real underlying blocks? */
__le32 eh_generation; /* generation of the tree */
};
#define EXT3_EXT_MAGIC 0xf30a
/*
* array of ext3_ext_path contains path to some extent
* creation/lookup routines use it for traversal/splitting/etc
* truncate uses it to simulate recursive walking
*/
struct ext3_ext_path {
__u32 p_block;
__u16 p_depth;
struct ext3_extent *p_ext;
struct ext3_extent_idx *p_idx;
struct ext3_extent_header *p_hdr;
struct buffer_head *p_bh;
};
/*
* EXT_INIT_MAX_LEN is the maximum number of blocks we can have in an
* initialized extent. This is 2^15 and not (2^16 - 1), since we use the
* MSB of ee_len field in the extent datastructure to signify if this
* particular extent is an initialized extent or an uninitialized (i.e.
* preallocated).
* EXT_UNINIT_MAX_LEN is the maximum number of blocks we can have in an
* uninitialized extent.
* If ee_len is <= 0x8000, it is an initialized extent. Otherwise, it is an
* uninitialized one. In other words, if MSB of ee_len is set, it is an
* uninitialized extent with only one special scenario when ee_len = 0x8000.
* In this case we can not have an uninitialized extent of zero length and
* thus we make it as a special case of initialized extent with 0x8000 length.
* This way we get better extent-to-group alignment for initialized extents.
* Hence, the maximum number of blocks we can have in an *initialized*
* extent is 2^15 (32768) and in an *uninitialized* extent is 2^15-1 (32767).
*/
#define EXT_INIT_MAX_LEN (1UL << 15)
#define EXT_UNINIT_MAX_LEN (EXT_INIT_MAX_LEN - 1)
#define EXT_MAX_EXTENT_LBLK (((__u64) 1 << 32) - 1)
#define EXT_MAX_EXTENT_PBLK (((__u64) 1 << 48) - 1)
#define EXT_FIRST_EXTENT(__hdr__) \
((struct ext3_extent *) (((char *) (__hdr__)) + \
sizeof(struct ext3_extent_header)))
#define EXT_FIRST_INDEX(__hdr__) \
((struct ext3_extent_idx *) (((char *) (__hdr__)) + \
sizeof(struct ext3_extent_header)))
#define EXT_HAS_FREE_INDEX(__path__) \
(ext2fs_le16_to_cpu((__path__)->p_hdr->eh_entries) < \
ext2fs_le16_to_cpu((__path__)->p_hdr->eh_max))
#define EXT_LAST_EXTENT(__hdr__) \
(EXT_FIRST_EXTENT((__hdr__)) + \
ext2fs_le16_to_cpu((__hdr__)->eh_entries) - 1)
#define EXT_LAST_INDEX(__hdr__) \
(EXT_FIRST_INDEX((__hdr__)) + \
ext2fs_le16_to_cpu((__hdr__)->eh_entries) - 1)
#define EXT_MAX_EXTENT(__hdr__) \
(EXT_FIRST_EXTENT((__hdr__)) + \
ext2fs_le16_to_cpu((__hdr__)->eh_max) - 1)
#define EXT_MAX_INDEX(__hdr__) \
(EXT_FIRST_INDEX((__hdr__)) + \
ext2fs_le16_to_cpu((__hdr__)->eh_max) - 1)
#endif /* _LINUX_EXT3_EXTENTS */
PK 2 �Z�3� � ext2fs.hnu �[��� /*
* ext2fs.h --- ext2fs
*
* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Library
* General Public License, version 2.
* %End-Header%
*/
#ifndef _EXT2FS_EXT2FS_H
#define _EXT2FS_EXT2FS_H
#ifdef __GNUC__
#define EXT2FS_ATTR(x) __attribute__(x)
#else
#define EXT2FS_ATTR(x)
#endif
#ifdef CONFIG_TDB
#define EXT2FS_NO_TDB_UNUSED
#else
#define EXT2FS_NO_TDB_UNUSED EXT2FS_ATTR((unused))
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*
* Non-GNU C compilers won't necessarily understand inline
*/
#if (!defined(__GNUC__) && !defined(__WATCOMC__))
#define NO_INLINE_FUNCS
#endif
/*
* Where the master copy of the superblock is located, and how big
* superblocks are supposed to be. We define SUPERBLOCK_SIZE because
* the size of the superblock structure is not necessarily trustworthy
* (some versions have the padding set up so that the superblock is
* 1032 bytes long).
*/
#define SUPERBLOCK_OFFSET 1024
#define SUPERBLOCK_SIZE 1024
#define UUID_STR_SIZE 37
/*
* The last ext2fs revision level that this version of the library is
* able to support.
*/
#define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#if EXT2_FLAT_INCLUDES
#include "e2_types.h"
#include "ext2_fs.h"
#include "ext3_extents.h"
#else
#include <ext2fs/ext2_types.h>
#include <ext2fs/ext2_fs.h>
#include <ext2fs/ext3_extents.h>
#endif /* EXT2_FLAT_INCLUDES */
typedef __u32 __bitwise ext2_ino_t;
typedef __u32 __bitwise blk_t;
typedef __u64 __bitwise blk64_t;
typedef __u32 __bitwise dgrp_t;
typedef __s32 __bitwise ext2_off_t;
typedef __s64 __bitwise ext2_off64_t;
typedef __s64 __bitwise e2_blkcnt_t;
typedef __u32 __bitwise ext2_dirhash_t;
#if EXT2_FLAT_INCLUDES
#include "com_err.h"
#include "ext2_io.h"
#include "ext2_err.h"
#include "ext2_ext_attr.h"
#else
#include <et/com_err.h>
#include <ext2fs/ext2_io.h>
#include <ext2fs/ext2_err.h>
#include <ext2fs/ext2_ext_attr.h>
#endif
#include "hashmap.h"
/*
* Portability help for Microsoft Visual C++
*/
#ifdef _MSC_VER
#define EXT2_QSORT_TYPE int __cdecl
#else
#define EXT2_QSORT_TYPE int
#endif
typedef struct struct_ext2_filsys *ext2_filsys;
#define EXT2FS_MARK_ERROR 0
#define EXT2FS_UNMARK_ERROR 1
#define EXT2FS_TEST_ERROR 2
typedef struct ext2fs_struct_generic_bitmap *ext2fs_generic_bitmap;
typedef struct ext2fs_struct_generic_bitmap *ext2fs_inode_bitmap;
typedef struct ext2fs_struct_generic_bitmap *ext2fs_block_bitmap;
#define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
/*
* Badblocks list definitions
*/
typedef struct ext2_struct_u32_list *ext2_badblocks_list;
typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
typedef struct ext2_struct_u32_list *ext2_u32_list;
typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
/* old */
typedef struct ext2_struct_u32_list *badblocks_list;
typedef struct ext2_struct_u32_iterate *badblocks_iterate;
#define BADBLOCKS_FLAG_DIRTY 1
/*
* ext2_dblist structure and abstractions (see dblist.c)
*/
struct ext2_db_entry2 {
ext2_ino_t ino;
blk64_t blk;
e2_blkcnt_t blockcnt;
};
/* Ye Olde 32-bit version */
struct ext2_db_entry {
ext2_ino_t ino;
blk_t blk;
int blockcnt;
};
typedef struct ext2_struct_dblist *ext2_dblist;
#define DBLIST_ABORT 1
/*
* ext2_fileio definitions
*/
#define EXT2_FILE_WRITE 0x0001
#define EXT2_FILE_CREATE 0x0002
#define EXT2_FILE_MASK 0x00FF
#define EXT2_FILE_BUF_DIRTY 0x4000
#define EXT2_FILE_BUF_VALID 0x2000
typedef struct ext2_file *ext2_file_t;
#define EXT2_SEEK_SET 0
#define EXT2_SEEK_CUR 1
#define EXT2_SEEK_END 2
/*
* Flags for the ext2_filsys structure and for ext2fs_open()
*/
#define EXT2_FLAG_RW 0x01
#define EXT2_FLAG_CHANGED 0x02
#define EXT2_FLAG_DIRTY 0x04
#define EXT2_FLAG_VALID 0x08
#define EXT2_FLAG_IB_DIRTY 0x10
#define EXT2_FLAG_BB_DIRTY 0x20
#define EXT2_FLAG_SWAP_BYTES 0x40
#define EXT2_FLAG_SWAP_BYTES_READ 0x80
#define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
#define EXT2_FLAG_MASTER_SB_ONLY 0x200
#define EXT2_FLAG_FORCE 0x400
#define EXT2_FLAG_SUPER_ONLY 0x800
#define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
#define EXT2_FLAG_IMAGE_FILE 0x2000
#define EXT2_FLAG_EXCLUSIVE 0x4000
#define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
#define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
#define EXT2_FLAG_64BITS 0x20000
#define EXT2_FLAG_PRINT_PROGRESS 0x40000
#define EXT2_FLAG_DIRECT_IO 0x80000
#define EXT2_FLAG_SKIP_MMP 0x100000
#define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
#define EXT2_FLAG_SHARE_DUP 0x400000
#define EXT2_FLAG_IGNORE_SB_ERRORS 0x800000
#define EXT2_FLAG_BBITMAP_TAIL_PROBLEM 0x1000000
#define EXT2_FLAG_IBITMAP_TAIL_PROBLEM 0x2000000
/*
* Special flag in the ext2 inode i_flag field that means that this is
* a new inode. (So that ext2_write_inode() can clear extra fields.)
*/
#define EXT2_NEW_INODE_FL 0x80000000
/*
* Flags for mkjournal
*/
#define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
#define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
#define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
struct blk_alloc_ctx;
struct opaque_ext2_group_desc;
struct struct_ext2_filsys {
errcode_t magic;
io_channel io;
int flags;
char * device_name;
struct ext2_super_block * super;
unsigned int blocksize;
int fragsize;
dgrp_t group_desc_count;
unsigned long desc_blocks;
struct opaque_ext2_group_desc * group_desc;
unsigned int inode_blocks_per_group;
ext2fs_inode_bitmap inode_map;
ext2fs_block_bitmap block_map;
/* XXX FIXME-64: not 64-bit safe, but not used? */
errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
errcode_t (*write_bitmaps)(ext2_filsys fs);
errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode);
errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode);
ext2_badblocks_list badblocks;
ext2_dblist dblist;
__u32 stride; /* for mke2fs */
struct ext2_super_block * orig_super;
struct ext2_image_hdr * image_header;
__u32 umask;
time_t now;
int cluster_ratio_bits;
__u16 default_bitmap_type;
__u16 pad;
/*
* RedHat specific change to prevent ABI change by using 8
* reserved bytes
*/
const struct ext2fs_nls_table *encoding;
/*
* Reserved for future expansion
*/
__u32 reserved[5 - (sizeof(long int)/4)];
/*
* Reserved for the use of the calling application.
*/
void * priv_data;
/*
* Inode cache
*/
struct ext2_inode_cache *icache;
io_channel image_io;
/*
* More callback functions
*/
errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
blk64_t *ret);
errcode_t (*get_alloc_block2)(ext2_filsys fs, blk64_t goal,
blk64_t *ret, struct blk_alloc_ctx *ctx);
void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
/*
* Buffers for Multiple mount protection(MMP) block.
*/
void *mmp_buf;
void *mmp_cmp;
int mmp_fd;
/*
* Time at which e2fsck last updated the MMP block.
*/
long mmp_last_written;
/* progress operation functions */
struct ext2fs_progress_ops *progress_ops;
/* Precomputed FS UUID checksum for seeding other checksums */
__u32 csum_seed;
io_channel journal_io;
char *journal_name;
/* New block range allocation hooks */
errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
blk64_t len, blk64_t *pblk, blk64_t *plen);
void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
int inuse);
/* hashmap for SHA of data blocks */
struct ext2fs_hashmap* block_sha_map;
};
#if EXT2_FLAT_INCLUDES
#include "e2_bitops.h"
#else
#include <ext2fs/bitops.h>
#endif
/*
* 64-bit bitmap backend types
*/
#define EXT2FS_BMAP64_BITARRAY 1
#define EXT2FS_BMAP64_RBTREE 2
#define EXT2FS_BMAP64_AUTODIR 3
/*
* Return flags for the block iterator functions
*/
#define BLOCK_CHANGED 1
#define BLOCK_ABORT 2
#define BLOCK_ERROR 4
#define BLOCK_INLINE_DATA_CHANGED 8
/*
* Block interate flags
*
* BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
* function should be called on blocks where the block number is zero.
* This is used by ext2fs_expand_dir() to be able to add a new block
* to an inode. It can also be used for programs that want to be able
* to deal with files that contain "holes".
*
* BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
* the indirect, doubly indirect, etc. blocks should be called after
* all of the blocks contained in the indirect blocks are processed.
* This is useful if you are going to be deallocating blocks from an
* inode.
*
* BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
* called for data blocks only.
*
* BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
* modify returned block number.
*
* BLOCK_FLAG_NO_LARGE is for internal use only. It informs
* ext2fs_block_iterate2 that large files won't be accepted.
*/
#define BLOCK_FLAG_APPEND 1
#define BLOCK_FLAG_HOLE 1
#define BLOCK_FLAG_DEPTH_TRAVERSE 2
#define BLOCK_FLAG_DATA_ONLY 4
#define BLOCK_FLAG_READ_ONLY 8
#define BLOCK_FLAG_NO_LARGE 0x1000
/*
* Magic "block count" return values for the block iterator function.
*/
#define BLOCK_COUNT_IND (-1)
#define BLOCK_COUNT_DIND (-2)
#define BLOCK_COUNT_TIND (-3)
#define BLOCK_COUNT_TRANSLATOR (-4)
#define BLOCK_ALLOC_UNKNOWN 0
#define BLOCK_ALLOC_DATA 1
#define BLOCK_ALLOC_METADATA 2
struct blk_alloc_ctx {
ext2_ino_t ino;
struct ext2_inode *inode;
blk64_t lblk;
int flags;
};
#if 0
/*
* Flags for ext2fs_move_blocks
*/
#define EXT2_BMOVE_GET_DBLIST 0x0001
#define EXT2_BMOVE_DEBUG 0x0002
#endif
/*
* Generic (non-filesystem layout specific) extents structure
*/
#define EXT2_EXTENT_FLAGS_LEAF 0x0001
#define EXT2_EXTENT_FLAGS_UNINIT 0x0002
#define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
struct ext2fs_extent {
blk64_t e_pblk; /* first physical block */
blk64_t e_lblk; /* first logical block extent covers */
__u32 e_len; /* number of blocks covered by extent */
__u32 e_flags; /* extent flags */
};
typedef struct ext2_extent_handle *ext2_extent_handle_t;
typedef struct ext2_extent_path *ext2_extent_path_t;
/*
* Flags used by ext2fs_extent_get()
*/
#define EXT2_EXTENT_CURRENT 0x0000
#define EXT2_EXTENT_MOVE_MASK 0x000F
#define EXT2_EXTENT_ROOT 0x0001
#define EXT2_EXTENT_LAST_LEAF 0x0002
#define EXT2_EXTENT_FIRST_SIB 0x0003
#define EXT2_EXTENT_LAST_SIB 0x0004
#define EXT2_EXTENT_NEXT_SIB 0x0005
#define EXT2_EXTENT_PREV_SIB 0x0006
#define EXT2_EXTENT_NEXT_LEAF 0x0007
#define EXT2_EXTENT_PREV_LEAF 0x0008
#define EXT2_EXTENT_NEXT 0x0009
#define EXT2_EXTENT_PREV 0x000A
#define EXT2_EXTENT_UP 0x000B
#define EXT2_EXTENT_DOWN 0x000C
#define EXT2_EXTENT_DOWN_AND_LAST 0x000D
/*
* Flags used by ext2fs_extent_insert()
*/
#define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
#define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
/*
* Flags used by ext2fs_extent_delete()
*/
#define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extent gone */
/*
* Flags used by ext2fs_extent_set_bmap()
*/
#define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
/*
* Data structure returned by ext2fs_extent_get_info()
*/
struct ext2_extent_info {
int curr_entry;
int curr_level;
int num_entries;
int max_entries;
int max_depth;
int bytes_avail;
blk64_t max_lblk;
blk64_t max_pblk;
__u32 max_len;
__u32 max_uninit_len;
};
/*
* Flags for directory block reading and writing functions
*/
#define EXT2_DIRBLOCK_V2_STRUCT 0x0001
/*
* Return flags for the directory iterator functions
*/
#define DIRENT_CHANGED 1
#define DIRENT_ABORT 2
#define DIRENT_ERROR 3
/*
* Directory iterator flags
*/
#define DIRENT_FLAG_INCLUDE_EMPTY 1
#define DIRENT_FLAG_INCLUDE_REMOVED 2
#define DIRENT_FLAG_INCLUDE_CSUM 4
#define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
#define DIRENT_DOT_FILE 1
#define DIRENT_DOT_DOT_FILE 2
#define DIRENT_OTHER_FILE 3
#define DIRENT_DELETED_FILE 4
#define DIRENT_CHECKSUM 5
/*
* Inode scan definitions
*/
typedef struct ext2_struct_inode_scan *ext2_inode_scan;
/*
* ext2fs_scan flags
*/
#define EXT2_SF_CHK_BADBLOCKS 0x0001
#define EXT2_SF_BAD_INODE_BLK 0x0002
#define EXT2_SF_BAD_EXTRA_BYTES 0x0004
#define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
#define EXT2_SF_DO_LAZY 0x0010
#define EXT2_SF_WARN_GARBAGE_INODES 0x0020
/*
* ext2fs_check_if_mounted flags
*/
#define EXT2_MF_MOUNTED 1
#define EXT2_MF_ISROOT 2
#define EXT2_MF_READONLY 4
#define EXT2_MF_SWAP 8
#define EXT2_MF_BUSY 16
/*
* Ext2/linux mode flags. We define them here so that we don't need
* to depend on the OS's sys/stat.h, since we may be compiling on a
* non-Linux system.
*/
#define LINUX_S_IFMT 00170000
#define LINUX_S_IFSOCK 0140000
#define LINUX_S_IFLNK 0120000
#define LINUX_S_IFREG 0100000
#define LINUX_S_IFBLK 0060000
#define LINUX_S_IFDIR 0040000
#define LINUX_S_IFCHR 0020000
#define LINUX_S_IFIFO 0010000
#define LINUX_S_ISUID 0004000
#define LINUX_S_ISGID 0002000
#define LINUX_S_ISVTX 0001000
#define LINUX_S_IRWXU 00700
#define LINUX_S_IRUSR 00400
#define LINUX_S_IWUSR 00200
#define LINUX_S_IXUSR 00100
#define LINUX_S_IRWXG 00070
#define LINUX_S_IRGRP 00040
#define LINUX_S_IWGRP 00020
#define LINUX_S_IXGRP 00010
#define LINUX_S_IRWXO 00007
#define LINUX_S_IROTH 00004
#define LINUX_S_IWOTH 00002
#define LINUX_S_IXOTH 00001
#define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
#define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
#define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
#define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
#define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
#define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
#define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
/*
* ext2 size of an inode
*/
#define EXT2_I_SIZE(i) ((i)->i_size | ((__u64) (i)->i_size_high << 32))
/*
* ext2_icount_t abstraction
*/
#define EXT2_ICOUNT_OPT_INCREMENT 0x01
#define EXT2_ICOUNT_OPT_FULLMAP 0x02
typedef struct ext2_icount *ext2_icount_t;
/*
* Flags for ext2fs_bmap
*/
#define BMAP_ALLOC 0x0001
#define BMAP_SET 0x0002
#define BMAP_UNINIT 0x0004
#define BMAP_ZERO 0x0008
/*
* Returned flags from ext2fs_bmap
*/
#define BMAP_RET_UNINIT 0x0001
/*
* Flags for ext2fs_read_inode2
*/
#define READ_INODE_NOCSUM 0x0001
/*
* Flags for ext2fs_write_inode2
*/
#define WRITE_INODE_NOCSUM 0x0001
/*
* Flags for imager.c functions
*/
#define IMAGER_FLAG_INODEMAP 1
#define IMAGER_FLAG_SPARSEWRITE 2
/*
* For checking structure magic numbers...
*/
#define EXT2_CHECK_MAGIC(struct, code) \
if ((struct)->magic != (code)) return (code)
/*
* Features supported by this version of the library
*/
#define EXT2_LIB_FEATURE_COMPAT_SUPP (EXT2_FEATURE_COMPAT_DIR_PREALLOC|\
EXT2_FEATURE_COMPAT_IMAGIC_INODES|\
EXT3_FEATURE_COMPAT_HAS_JOURNAL|\
EXT2_FEATURE_COMPAT_RESIZE_INODE|\
EXT2_FEATURE_COMPAT_DIR_INDEX|\
EXT2_FEATURE_COMPAT_EXT_ATTR|\
EXT4_FEATURE_COMPAT_SPARSE_SUPER2)
#ifdef CONFIG_MMP
#define EXT4_LIB_INCOMPAT_MMP EXT4_FEATURE_INCOMPAT_MMP
#else
#define EXT4_LIB_INCOMPAT_MMP (0)
#endif
#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE|\
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|\
EXT2_FEATURE_INCOMPAT_META_BG|\
EXT3_FEATURE_INCOMPAT_RECOVER|\
EXT3_FEATURE_INCOMPAT_EXTENTS|\
EXT4_FEATURE_INCOMPAT_FLEX_BG|\
EXT4_FEATURE_INCOMPAT_EA_INODE|\
EXT4_LIB_INCOMPAT_MMP|\
EXT4_FEATURE_INCOMPAT_64BIT|\
EXT4_FEATURE_INCOMPAT_INLINE_DATA|\
EXT4_FEATURE_INCOMPAT_ENCRYPT|\
EXT4_FEATURE_INCOMPAT_CASEFOLD|\
EXT4_FEATURE_INCOMPAT_CSUM_SEED|\
EXT4_FEATURE_INCOMPAT_LARGEDIR)
#define EXT2_LIB_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|\
EXT4_FEATURE_RO_COMPAT_HUGE_FILE|\
EXT2_FEATURE_RO_COMPAT_LARGE_FILE|\
EXT4_FEATURE_RO_COMPAT_DIR_NLINK|\
EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|\
EXT4_FEATURE_RO_COMPAT_GDT_CSUM|\
EXT4_FEATURE_RO_COMPAT_BIGALLOC|\
EXT4_FEATURE_RO_COMPAT_QUOTA|\
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
EXT4_FEATURE_RO_COMPAT_READONLY |\
EXT4_FEATURE_RO_COMPAT_PROJECT |\
EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS |\
EXT4_FEATURE_RO_COMPAT_VERITY)
/*
* These features are only allowed if EXT2_FLAG_SOFTSUPP_FEATURES is passed
* to ext2fs_openfs()
*/
#define EXT2_LIB_SOFTSUPP_INCOMPAT (0)
#define EXT2_LIB_SOFTSUPP_RO_COMPAT (EXT4_FEATURE_RO_COMPAT_REPLICA)
/* Translate a block number to a cluster number */
#define EXT2FS_CLUSTER_RATIO(fs) (1 << (fs)->cluster_ratio_bits)
#define EXT2FS_CLUSTER_MASK(fs) (EXT2FS_CLUSTER_RATIO(fs) - 1)
#define EXT2FS_B2C(fs, blk) ((blk) >> (fs)->cluster_ratio_bits)
/* Translate a cluster number to a block number */
#define EXT2FS_C2B(fs, cluster) ((cluster) << (fs)->cluster_ratio_bits)
/* Translate # of blks to # of clusters */
#define EXT2FS_NUM_B2C(fs, blks) (((blks) + EXT2FS_CLUSTER_MASK(fs)) >> \
(fs)->cluster_ratio_bits)
#if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
typedef struct stat64 ext2fs_struct_stat;
#else
typedef struct stat ext2fs_struct_stat;
#endif
/*
* For ext2fs_close2() and ext2fs_flush2(), this flag allows you to
* avoid the fsync call.
*/
#define EXT2_FLAG_FLUSH_NO_SYNC 1
/*
* Modify and iterate extended attributes
*/
struct ext2_xattr_handle;
#define XATTR_ABORT 1
#define XATTR_CHANGED 2
/*
* function prototypes
*/
static inline int ext2fs_has_group_desc_csum(ext2_filsys fs)
{
return ext2fs_has_feature_metadata_csum(fs->super) ||
ext2fs_has_feature_gdt_csum(fs->super);
}
/* The LARGE_FILE feature should be set if we have stored files 2GB+ in size */
static inline int ext2fs_needs_large_file_feature(unsigned long long file_size)
{
return file_size >= 0x80000000ULL;
}
/* alloc.c */
extern void ext2fs_clear_block_uninit(ext2_filsys fs, dgrp_t group);
extern errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir, int mode,
ext2fs_inode_bitmap map, ext2_ino_t *ret);
extern errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,
ext2fs_block_bitmap map, blk_t *ret);
extern errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,
ext2fs_block_bitmap map, blk64_t *ret);
extern errcode_t ext2fs_new_block3(ext2_filsys fs, blk64_t goal,
ext2fs_block_bitmap map, blk64_t *ret,
struct blk_alloc_ctx *ctx);
extern errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start,
blk_t finish, int num,
ext2fs_block_bitmap map,
blk_t *ret);
extern errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start,
blk64_t finish, int num,
ext2fs_block_bitmap map,
blk64_t *ret);
extern errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,
char *block_buf, blk_t *ret);
extern errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,
char *block_buf, blk64_t *ret);
extern errcode_t ext2fs_alloc_block3(ext2_filsys fs, blk64_t goal,
char *block_buf, blk64_t *ret,
struct blk_alloc_ctx *ctx);
extern void ext2fs_set_alloc_block_callback(ext2_filsys fs,
errcode_t (*func)(ext2_filsys fs,
blk64_t goal,
blk64_t *ret),
errcode_t (**old)(ext2_filsys fs,
blk64_t goal,
blk64_t *ret));
blk64_t ext2fs_find_inode_goal(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode, blk64_t lblk);
extern void ext2fs_set_new_range_callback(ext2_filsys fs,
errcode_t (*func)(ext2_filsys fs, int flags, blk64_t goal,
blk64_t len, blk64_t *pblk, blk64_t *plen),
errcode_t (**old)(ext2_filsys fs, int flags, blk64_t goal,
blk64_t len, blk64_t *pblk, blk64_t *plen));
extern void ext2fs_set_block_alloc_stats_range_callback(ext2_filsys fs,
void (*func)(ext2_filsys fs, blk64_t blk,
blk_t num, int inuse),
void (**old)(ext2_filsys fs, blk64_t blk,
blk_t num, int inuse));
#define EXT2_NEWRANGE_FIXED_GOAL (0x1)
#define EXT2_NEWRANGE_MIN_LENGTH (0x2)
#define EXT2_NEWRANGE_ALL_FLAGS (0x3)
errcode_t ext2fs_new_range(ext2_filsys fs, int flags, blk64_t goal,
blk64_t len, ext2fs_block_bitmap map, blk64_t *pblk,
blk64_t *plen);
#define EXT2_ALLOCRANGE_FIXED_GOAL (0x1)
#define EXT2_ALLOCRANGE_ZERO_BLOCKS (0x2)
#define EXT2_ALLOCRANGE_ALL_FLAGS (0x3)
errcode_t ext2fs_alloc_range(ext2_filsys fs, int flags, blk64_t goal,
blk_t len, blk64_t *ret);
/* alloc_sb.c */
extern int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
dgrp_t group,
ext2fs_block_bitmap bmap);
extern void ext2fs_set_block_alloc_stats_callback(ext2_filsys fs,
void (*func)(ext2_filsys fs,
blk64_t blk,
int inuse),
void (**old)(ext2_filsys fs,
blk64_t blk,
int inuse));
/* alloc_stats.c */
void ext2fs_inode_alloc_stats(ext2_filsys fs, ext2_ino_t ino, int inuse);
void ext2fs_inode_alloc_stats2(ext2_filsys fs, ext2_ino_t ino,
int inuse, int isdir);
void ext2fs_block_alloc_stats(ext2_filsys fs, blk_t blk, int inuse);
void ext2fs_block_alloc_stats2(ext2_filsys fs, blk64_t blk, int inuse);
void ext2fs_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
blk_t num, int inuse);
/* alloc_tables.c */
extern errcode_t ext2fs_allocate_tables(ext2_filsys fs);
extern errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
ext2fs_block_bitmap bmap);
/* badblocks.c */
extern errcode_t ext2fs_u32_list_create(ext2_u32_list *ret, int size);
extern errcode_t ext2fs_u32_list_add(ext2_u32_list bb, __u32 blk);
extern int ext2fs_u32_list_find(ext2_u32_list bb, __u32 blk);
extern int ext2fs_u32_list_test(ext2_u32_list bb, blk_t blk);
extern errcode_t ext2fs_u32_list_iterate_begin(ext2_u32_list bb,
ext2_u32_iterate *ret);
extern int ext2fs_u32_list_iterate(ext2_u32_iterate iter, blk_t *blk);
extern void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter);
extern errcode_t ext2fs_u32_copy(ext2_u32_list src, ext2_u32_list *dest);
extern int ext2fs_u32_list_equal(ext2_u32_list bb1, ext2_u32_list bb2);
extern errcode_t ext2fs_badblocks_list_create(ext2_badblocks_list *ret,
int size);
extern errcode_t ext2fs_badblocks_list_add(ext2_badblocks_list bb,
blk_t blk);
extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb,
blk_t blk);
extern int ext2fs_u32_list_del(ext2_u32_list bb, __u32 blk);
extern void ext2fs_badblocks_list_del(ext2_u32_list bb, __u32 blk);
extern errcode_t
ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb,
ext2_badblocks_iterate *ret);
extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter,
blk_t *blk);
extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter);
extern errcode_t ext2fs_badblocks_copy(ext2_badblocks_list src,
ext2_badblocks_list *dest);
extern int ext2fs_badblocks_equal(ext2_badblocks_list bb1,
ext2_badblocks_list bb2);
extern int ext2fs_u32_list_count(ext2_u32_list bb);
/* bb_compat */
extern errcode_t badblocks_list_create(badblocks_list *ret, int size);
extern errcode_t badblocks_list_add(badblocks_list bb, blk_t blk);
extern int badblocks_list_test(badblocks_list bb, blk_t blk);
extern errcode_t badblocks_list_iterate_begin(badblocks_list bb,
badblocks_iterate *ret);
extern int badblocks_list_iterate(badblocks_iterate iter, blk_t *blk);
extern void badblocks_list_iterate_end(badblocks_iterate iter);
extern void badblocks_list_free(badblocks_list bb);
/* bb_inode.c */
extern errcode_t ext2fs_update_bb_inode(ext2_filsys fs,
ext2_badblocks_list bb_list);
/* bitmaps.c */
extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap);
extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap);
extern errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
ext2fs_generic_bitmap *dest);
extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
extern errcode_t ext2fs_write_block_bitmap (ext2_filsys fs);
extern errcode_t ext2fs_read_inode_bitmap (ext2_filsys fs);
extern errcode_t ext2fs_read_block_bitmap(ext2_filsys fs);
extern errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
const char *descr,
ext2fs_block_bitmap *ret);
extern errcode_t ext2fs_allocate_subcluster_bitmap(ext2_filsys fs,
const char *descr,
ext2fs_block_bitmap *ret);
extern int ext2fs_get_bitmap_granularity(ext2fs_block_bitmap bitmap);
extern errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
const char *descr,
ext2fs_inode_bitmap *ret);
extern errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
ext2_ino_t end, ext2_ino_t *oend);
extern errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
blk_t end, blk_t *oend);
extern errcode_t ext2fs_fudge_block_bitmap_end2(ext2fs_block_bitmap bitmap,
blk64_t end, blk64_t *oend);
extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap);
extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap);
extern errcode_t ext2fs_read_bitmaps(ext2_filsys fs);
extern errcode_t ext2fs_write_bitmaps(ext2_filsys fs);
extern errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
ext2fs_inode_bitmap bmap);
extern errcode_t ext2fs_resize_inode_bitmap2(__u64 new_end,
__u64 new_real_end,
ext2fs_inode_bitmap bmap);
extern errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
ext2fs_block_bitmap bmap);
extern errcode_t ext2fs_resize_block_bitmap2(__u64 new_end,
__u64 new_real_end,
ext2fs_block_bitmap bmap);
extern errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
ext2fs_block_bitmap bm2);
extern errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
ext2fs_inode_bitmap bm2);
extern errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
ext2_ino_t start, unsigned int num,
void *in);
extern errcode_t ext2fs_set_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
__u64 start, size_t num,
void *in);
extern errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
ext2_ino_t start, unsigned int num,
void *out);
extern errcode_t ext2fs_get_inode_bitmap_range2(ext2fs_inode_bitmap bmap,
__u64 start, size_t num,
void *out);
extern errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
blk_t start, unsigned int num,
void *in);
extern errcode_t ext2fs_set_block_bitmap_range2(ext2fs_block_bitmap bmap,
blk64_t start, size_t num,
void *in);
extern errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
blk_t start, unsigned int num,
void *out);
extern errcode_t ext2fs_get_block_bitmap_range2(ext2fs_block_bitmap bmap,
blk64_t start, size_t num,
void *out);
/* blknum.c */
extern __u32 ext2fs_inode_bitmap_checksum(ext2_filsys fs, dgrp_t group);
extern __u32 ext2fs_block_bitmap_checksum(ext2_filsys fs, dgrp_t group);
extern dgrp_t ext2fs_group_of_blk2(ext2_filsys fs, blk64_t);
extern blk64_t ext2fs_group_first_block2(ext2_filsys fs, dgrp_t group);
extern blk64_t ext2fs_group_last_block2(ext2_filsys fs, dgrp_t group);
extern int ext2fs_group_blocks_count(ext2_filsys fs, dgrp_t group);
extern blk64_t ext2fs_inode_data_blocks2(ext2_filsys fs,
struct ext2_inode *inode);
extern blk64_t ext2fs_inode_i_blocks(ext2_filsys fs,
struct ext2_inode *inode);
extern blk64_t ext2fs_get_stat_i_blocks(ext2_filsys fs,
struct ext2_inode *inode);
extern blk64_t ext2fs_blocks_count(struct ext2_super_block *super);
extern void ext2fs_blocks_count_set(struct ext2_super_block *super,
blk64_t blk);
extern void ext2fs_blocks_count_add(struct ext2_super_block *super,
blk64_t blk);
extern blk64_t ext2fs_r_blocks_count(struct ext2_super_block *super);
extern void ext2fs_r_blocks_count_set(struct ext2_super_block *super,
blk64_t blk);
extern void ext2fs_r_blocks_count_add(struct ext2_super_block *super,
blk64_t blk);
extern blk64_t ext2fs_free_blocks_count(struct ext2_super_block *super);
extern void ext2fs_free_blocks_count_set(struct ext2_super_block *super,
blk64_t blk);
extern void ext2fs_free_blocks_count_add(struct ext2_super_block *super,
blk64_t blk);
/* Block group descriptor accessor functions */
extern struct ext2_group_desc *ext2fs_group_desc(ext2_filsys fs,
struct opaque_ext2_group_desc *gdp,
dgrp_t group);
extern blk64_t ext2fs_block_bitmap_csum(ext2_filsys fs, dgrp_t group);
extern blk64_t ext2fs_block_bitmap_loc(ext2_filsys fs, dgrp_t group);
extern void ext2fs_block_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
blk64_t blk);
extern __u32 ext2fs_inode_bitmap_csum(ext2_filsys fs, dgrp_t group);
extern blk64_t ext2fs_inode_bitmap_loc(ext2_filsys fs, dgrp_t group);
extern void ext2fs_inode_bitmap_loc_set(ext2_filsys fs, dgrp_t group,
blk64_t blk);
extern blk64_t ext2fs_inode_table_loc(ext2_filsys fs, dgrp_t group);
extern void ext2fs_inode_table_loc_set(ext2_filsys fs, dgrp_t group,
blk64_t blk);
extern __u32 ext2fs_bg_free_blocks_count(ext2_filsys fs, dgrp_t group);
extern void ext2fs_bg_free_blocks_count_set(ext2_filsys fs, dgrp_t group,
__u32 n);
extern __u32 ext2fs_bg_free_inodes_count(ext2_filsys fs, dgrp_t group);
extern void ext2fs_bg_free_inodes_count_set(ext2_filsys fs, dgrp_t group,
__u32 n);
extern __u32 ext2fs_bg_used_dirs_count(ext2_filsys fs, dgrp_t group);
extern void ext2fs_bg_used_dirs_count_set(ext2_filsys fs, dgrp_t group,
__u32 n);
extern __u32 ext2fs_bg_itable_unused(ext2_filsys fs, dgrp_t group);
extern void ext2fs_bg_itable_unused_set(ext2_filsys fs, dgrp_t group,
__u32 n);
extern __u16 ext2fs_bg_flags(ext2_filsys fs, dgrp_t group);
extern void ext2fs_bg_flags_zap(ext2_filsys fs, dgrp_t group);
extern int ext2fs_bg_flags_test(ext2_filsys fs, dgrp_t group, __u16 bg_flag);
extern void ext2fs_bg_flags_set(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
extern void ext2fs_bg_flags_clear(ext2_filsys fs, dgrp_t group, __u16 bg_flags);
extern __u16 ext2fs_bg_checksum(ext2_filsys fs, dgrp_t group);
extern void ext2fs_bg_checksum_set(ext2_filsys fs, dgrp_t group, __u16 checksum);
extern blk64_t ext2fs_file_acl_block(ext2_filsys fs,
const struct ext2_inode *inode);
extern void ext2fs_file_acl_block_set(ext2_filsys fs,
struct ext2_inode *inode, blk64_t blk);
extern errcode_t ext2fs_inode_size_set(ext2_filsys fs, struct ext2_inode *inode,
ext2_off64_t size);
/* block.c */
extern errcode_t ext2fs_block_iterate(ext2_filsys fs,
ext2_ino_t ino,
int flags,
char *block_buf,
int (*func)(ext2_filsys fs,
blk_t *blocknr,
int blockcnt,
void *priv_data),
void *priv_data);
errcode_t ext2fs_block_iterate2(ext2_filsys fs,
ext2_ino_t ino,
int flags,
char *block_buf,
int (*func)(ext2_filsys fs,
blk_t *blocknr,
e2_blkcnt_t blockcnt,
blk_t ref_blk,
int ref_offset,
void *priv_data),
void *priv_data);
errcode_t ext2fs_block_iterate3(ext2_filsys fs,
ext2_ino_t ino,
int flags,
char *block_buf,
int (*func)(ext2_filsys fs,
blk64_t *blocknr,
e2_blkcnt_t blockcnt,
blk64_t ref_blk,
int ref_offset,
void *priv_data),
void *priv_data);
/* bmap.c */
extern errcode_t ext2fs_bmap(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
char *block_buf, int bmap_flags,
blk_t block, blk_t *phys_blk);
extern errcode_t ext2fs_bmap2(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
char *block_buf, int bmap_flags, blk64_t block,
int *ret_flags, blk64_t *phys_blk);
errcode_t ext2fs_map_cluster_block(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode, blk64_t lblk,
blk64_t *pblk);
#if 0
/* bmove.c */
extern errcode_t ext2fs_move_blocks(ext2_filsys fs,
ext2fs_block_bitmap reserve,
ext2fs_block_bitmap alloc_map,
int flags);
#endif
/* check_desc.c */
extern errcode_t ext2fs_check_desc(ext2_filsys fs);
/* closefs.c */
extern errcode_t ext2fs_close(ext2_filsys fs);
extern errcode_t ext2fs_close2(ext2_filsys fs, int flags);
extern errcode_t ext2fs_close_free(ext2_filsys *fs);
extern errcode_t ext2fs_flush(ext2_filsys fs);
extern errcode_t ext2fs_flush2(ext2_filsys fs, int flags);
extern int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group_block);
extern errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,
dgrp_t group,
blk64_t *ret_super_blk,
blk64_t *ret_old_desc_blk,
blk64_t *ret_new_desc_blk,
blk_t *ret_used_blks);
extern int ext2fs_super_and_bgd_loc(ext2_filsys fs,
dgrp_t group,
blk_t *ret_super_blk,
blk_t *ret_old_desc_blk,
blk_t *ret_new_desc_blk,
int *ret_meta_bg);
extern void ext2fs_update_dynamic_rev(ext2_filsys fs);
/* crc32c.c */
extern __u32 ext2fs_crc32_be(__u32 crc, unsigned char const *p, size_t len);
extern __u32 ext2fs_crc32c_le(__u32 crc, unsigned char const *p, size_t len);
/* csum.c */
extern void ext2fs_init_csum_seed(ext2_filsys fs);
extern errcode_t ext2fs_mmp_csum_set(ext2_filsys fs, struct mmp_struct *mmp);
extern int ext2fs_mmp_csum_verify(ext2_filsys, struct mmp_struct *mmp);
extern int ext2fs_verify_csum_type(ext2_filsys fs, struct ext2_super_block *sb);
extern errcode_t ext2fs_superblock_csum_set(ext2_filsys fs,
struct ext2_super_block *sb);
extern int ext2fs_superblock_csum_verify(ext2_filsys fs,
struct ext2_super_block *sb);
extern errcode_t ext2fs_ext_attr_block_csum_set(ext2_filsys fs,
ext2_ino_t inum, blk64_t block,
struct ext2_ext_attr_header *hdr);
extern int ext2fs_ext_attr_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
blk64_t block,
struct ext2_ext_attr_header *hdr);
#define EXT2_DIRENT_TAIL(block, blocksize) \
((struct ext2_dir_entry_tail *)(((char *)(block)) + \
(blocksize) - sizeof(struct ext2_dir_entry_tail)))
extern void ext2fs_initialize_dirent_tail(ext2_filsys fs,
struct ext2_dir_entry_tail *t);
extern int ext2fs_dirent_has_tail(ext2_filsys fs,
struct ext2_dir_entry *dirent);
extern int ext2fs_dirent_csum_verify(ext2_filsys fs, ext2_ino_t inum,
struct ext2_dir_entry *dirent);
extern int ext2fs_dir_block_csum_verify(ext2_filsys fs, ext2_ino_t inum,
struct ext2_dir_entry *dirent);
extern errcode_t ext2fs_dir_block_csum_set(ext2_filsys fs, ext2_ino_t inum,
struct ext2_dir_entry *dirent);
extern errcode_t ext2fs_get_dx_countlimit(ext2_filsys fs,
struct ext2_dir_entry *dirent,
struct ext2_dx_countlimit **cc,
int *offset);
extern errcode_t ext2fs_extent_block_csum_set(ext2_filsys fs,
ext2_ino_t inum,
struct ext3_extent_header *eh);
extern int ext2fs_extent_block_csum_verify(ext2_filsys fs,
ext2_ino_t inum,
struct ext3_extent_header *eh);
extern errcode_t ext2fs_block_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
char *bitmap, int size);
extern int ext2fs_block_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
char *bitmap, int size);
extern errcode_t ext2fs_inode_bitmap_csum_set(ext2_filsys fs, dgrp_t group,
char *bitmap, int size);
extern int ext2fs_inode_bitmap_csum_verify(ext2_filsys fs, dgrp_t group,
char *bitmap, int size);
extern errcode_t ext2fs_inode_csum_set(ext2_filsys fs, ext2_ino_t inum,
struct ext2_inode_large *inode);
extern int ext2fs_inode_csum_verify(ext2_filsys fs, ext2_ino_t inum,
struct ext2_inode_large *inode);
extern void ext2fs_group_desc_csum_set(ext2_filsys fs, dgrp_t group);
extern int ext2fs_group_desc_csum_verify(ext2_filsys fs, dgrp_t group);
extern errcode_t ext2fs_set_gdt_csum(ext2_filsys fs);
extern __u16 ext2fs_group_desc_csum(ext2_filsys fs, dgrp_t group);
/* dblist.c */
extern errcode_t ext2fs_init_dblist(ext2_filsys fs, ext2_dblist *ret_dblist);
extern errcode_t ext2fs_add_dir_block(ext2_dblist dblist, ext2_ino_t ino,
blk_t blk, int blockcnt);
extern errcode_t ext2fs_add_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
blk64_t blk, e2_blkcnt_t blockcnt);
extern void ext2fs_dblist_sort(ext2_dblist dblist,
EXT2_QSORT_TYPE (*sortfunc)(const void *,
const void *));
extern void ext2fs_dblist_sort2(ext2_dblist dblist,
EXT2_QSORT_TYPE (*sortfunc)(const void *,
const void *));
extern errcode_t ext2fs_dblist_iterate(ext2_dblist dblist,
int (*func)(ext2_filsys fs, struct ext2_db_entry *db_info,
void *priv_data),
void *priv_data);
extern errcode_t ext2fs_dblist_iterate2(ext2_dblist dblist,
int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
void *priv_data),
void *priv_data);
extern errcode_t ext2fs_dblist_iterate3(ext2_dblist dblist,
int (*func)(ext2_filsys fs, struct ext2_db_entry2 *db_info,
void *priv_data),
unsigned long long start,
unsigned long long count,
void *priv_data);
extern errcode_t ext2fs_set_dir_block(ext2_dblist dblist, ext2_ino_t ino,
blk_t blk, int blockcnt);
extern errcode_t ext2fs_set_dir_block2(ext2_dblist dblist, ext2_ino_t ino,
blk64_t blk, e2_blkcnt_t blockcnt);
extern errcode_t ext2fs_copy_dblist(ext2_dblist src,
ext2_dblist *dest);
extern int ext2fs_dblist_count(ext2_dblist dblist);
extern blk64_t ext2fs_dblist_count2(ext2_dblist dblist);
extern errcode_t ext2fs_dblist_get_last(ext2_dblist dblist,
struct ext2_db_entry **entry);
extern errcode_t ext2fs_dblist_get_last2(ext2_dblist dblist,
struct ext2_db_entry2 **entry);
extern errcode_t ext2fs_dblist_drop_last(ext2_dblist dblist);
/* dblist_dir.c */
extern errcode_t
ext2fs_dblist_dir_iterate(ext2_dblist dblist,
int flags,
char *block_buf,
int (*func)(ext2_ino_t dir,
int entry,
struct ext2_dir_entry *dirent,
int offset,
int blocksize,
char *buf,
void *priv_data),
void *priv_data);
#if 0
/* digest_encode.c */
#define EXT2FS_DIGEST_SIZE EXT2FS_SHA256_LENGTH
extern int ext2fs_digest_encode(const char *src, int len, char *dst);
extern int ext2fs_digest_decode(const char *src, int len, char *dst);
#endif
/* dirblock.c */
extern errcode_t ext2fs_read_dir_block(ext2_filsys fs, blk_t block,
void *buf);
extern errcode_t ext2fs_read_dir_block2(ext2_filsys fs, blk_t block,
void *buf, int flags);
extern errcode_t ext2fs_read_dir_block3(ext2_filsys fs, blk64_t block,
void *buf, int flags);
extern errcode_t ext2fs_read_dir_block4(ext2_filsys fs, blk64_t block,
void *buf, int flags, ext2_ino_t ino);
extern errcode_t ext2fs_write_dir_block(ext2_filsys fs, blk_t block,
void *buf);
extern errcode_t ext2fs_write_dir_block2(ext2_filsys fs, blk_t block,
void *buf, int flags);
extern errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
void *buf, int flags);
extern errcode_t ext2fs_write_dir_block4(ext2_filsys fs, blk64_t block,
void *buf, int flags, ext2_ino_t ino);
/* dirhash.c */
extern errcode_t ext2fs_dirhash(int version, const char *name, int len,
const __u32 *seed,
ext2_dirhash_t *ret_hash,
ext2_dirhash_t *ret_minor_hash);
extern errcode_t ext2fs_dirhash2(int version, const char *name, int len,
const struct ext2fs_nls_table *charset,
int hash_flags,
const __u32 *seed,
ext2_dirhash_t *ret_hash,
ext2_dirhash_t *ret_minor_hash);
/* dir_iterate.c */
extern errcode_t ext2fs_get_rec_len(ext2_filsys fs,
struct ext2_dir_entry *dirent,
unsigned int *rec_len);
extern errcode_t ext2fs_set_rec_len(ext2_filsys fs,
unsigned int len,
struct ext2_dir_entry *dirent);
extern errcode_t ext2fs_dir_iterate(ext2_filsys fs,
ext2_ino_t dir,
int flags,
char *block_buf,
int (*func)(struct ext2_dir_entry *dirent,
int offset,
int blocksize,
char *buf,
void *priv_data),
void *priv_data);
extern errcode_t ext2fs_dir_iterate2(ext2_filsys fs,
ext2_ino_t dir,
int flags,
char *block_buf,
int (*func)(ext2_ino_t dir,
int entry,
struct ext2_dir_entry *dirent,
int offset,
int blocksize,
char *buf,
void *priv_data),
void *priv_data);
/* dupfs.c */
extern errcode_t ext2fs_dup_handle(ext2_filsys src, ext2_filsys *dest);
/* expanddir.c */
extern errcode_t ext2fs_expand_dir(ext2_filsys fs, ext2_ino_t dir);
/* ext_attr.c */
extern __u32 ext2fs_ext_attr_hash_entry(struct ext2_ext_attr_entry *entry,
void *data);
extern errcode_t ext2fs_ext_attr_hash_entry2(ext2_filsys fs,
struct ext2_ext_attr_entry *entry,
void *data, __u32 *hash);
extern errcode_t ext2fs_read_ext_attr(ext2_filsys fs, blk_t block, void *buf);
extern errcode_t ext2fs_read_ext_attr2(ext2_filsys fs, blk64_t block,
void *buf);
extern errcode_t ext2fs_read_ext_attr3(ext2_filsys fs, blk64_t block,
void *buf, ext2_ino_t inum);
extern errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block,
void *buf);
extern errcode_t ext2fs_write_ext_attr2(ext2_filsys fs, blk64_t block,
void *buf);
extern errcode_t ext2fs_write_ext_attr3(ext2_filsys fs, blk64_t block,
void *buf, ext2_ino_t inum);
extern errcode_t ext2fs_adjust_ea_refcount(ext2_filsys fs, blk_t blk,
char *block_buf,
int adjust, __u32 *newcount);
extern errcode_t ext2fs_adjust_ea_refcount2(ext2_filsys fs, blk64_t blk,
char *block_buf,
int adjust, __u32 *newcount);
extern errcode_t ext2fs_adjust_ea_refcount3(ext2_filsys fs, blk64_t blk,
char *block_buf,
int adjust, __u32 *newcount,
ext2_ino_t inum);
errcode_t ext2fs_xattrs_write(struct ext2_xattr_handle *handle);
errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle);
errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
int (*func)(char *name, char *value,
size_t value_len, void *data),
void *data);
errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
void **value, size_t *value_len);
errcode_t ext2fs_xattr_set(struct ext2_xattr_handle *handle,
const char *key,
const void *value,
size_t value_len);
errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
const char *key);
errcode_t ext2fs_xattrs_open(ext2_filsys fs, ext2_ino_t ino,
struct ext2_xattr_handle **handle);
errcode_t ext2fs_xattrs_close(struct ext2_xattr_handle **handle);
errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode_large *inode);
errcode_t ext2fs_xattrs_count(struct ext2_xattr_handle *handle, size_t *count);
errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
size_t *size);
#define XATTR_HANDLE_FLAG_RAW 0x0001
errcode_t ext2fs_xattrs_flags(struct ext2_xattr_handle *handle,
unsigned int *new_flags, unsigned int *old_flags);
extern void ext2fs_ext_attr_block_rehash(struct ext2_ext_attr_header *header,
struct ext2_ext_attr_entry *end);
extern __u32 ext2fs_get_ea_inode_hash(struct ext2_inode *inode);
extern void ext2fs_set_ea_inode_hash(struct ext2_inode *inode, __u32 hash);
extern __u64 ext2fs_get_ea_inode_ref(struct ext2_inode *inode);
extern void ext2fs_set_ea_inode_ref(struct ext2_inode *inode, __u64 ref_count);
/* extent.c */
extern errcode_t ext2fs_extent_header_verify(void *ptr, int size);
extern errcode_t ext2fs_extent_open(ext2_filsys fs, ext2_ino_t ino,
ext2_extent_handle_t *handle);
extern errcode_t ext2fs_extent_open2(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
ext2_extent_handle_t *ret_handle);
extern void ext2fs_extent_free(ext2_extent_handle_t handle);
extern errcode_t ext2fs_extent_get(ext2_extent_handle_t handle,
int flags, struct ext2fs_extent *extent);
extern errcode_t ext2fs_extent_node_split(ext2_extent_handle_t handle);
extern errcode_t ext2fs_extent_replace(ext2_extent_handle_t handle, int flags,
struct ext2fs_extent *extent);
extern errcode_t ext2fs_extent_insert(ext2_extent_handle_t handle, int flags,
struct ext2fs_extent *extent);
extern errcode_t ext2fs_extent_set_bmap(ext2_extent_handle_t handle,
blk64_t logical, blk64_t physical,
int flags);
extern errcode_t ext2fs_extent_delete(ext2_extent_handle_t handle, int flags);
extern errcode_t ext2fs_extent_get_info(ext2_extent_handle_t handle,
struct ext2_extent_info *info);
extern errcode_t ext2fs_extent_goto(ext2_extent_handle_t handle,
blk64_t blk);
extern errcode_t ext2fs_extent_goto2(ext2_extent_handle_t handle,
int leaf_level, blk64_t blk);
extern errcode_t ext2fs_extent_fix_parents(ext2_extent_handle_t handle);
extern size_t ext2fs_max_extent_depth(ext2_extent_handle_t handle);
extern errcode_t ext2fs_fix_extents_checksums(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode);
/* fallocate.c */
#define EXT2_FALLOCATE_ZERO_BLOCKS (0x1)
#define EXT2_FALLOCATE_FORCE_INIT (0x2)
#define EXT2_FALLOCATE_FORCE_UNINIT (0x4)
#define EXT2_FALLOCATE_INIT_BEYOND_EOF (0x8)
#define EXT2_FALLOCATE_ALL_FLAGS (0xF)
errcode_t ext2fs_fallocate(ext2_filsys fs, int flags, ext2_ino_t ino,
struct ext2_inode *inode, blk64_t goal,
blk64_t start, blk64_t len);
/* fileio.c */
extern errcode_t ext2fs_file_open2(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
int flags, ext2_file_t *ret);
extern errcode_t ext2fs_file_open(ext2_filsys fs, ext2_ino_t ino,
int flags, ext2_file_t *ret);
extern ext2_filsys ext2fs_file_get_fs(ext2_file_t file);
struct ext2_inode *ext2fs_file_get_inode(ext2_file_t file);
extern ext2_ino_t ext2fs_file_get_inode_num(ext2_file_t file);
extern errcode_t ext2fs_file_close(ext2_file_t file);
extern errcode_t ext2fs_file_flush(ext2_file_t file);
extern errcode_t ext2fs_file_read(ext2_file_t file, void *buf,
unsigned int wanted, unsigned int *got);
extern errcode_t ext2fs_file_write(ext2_file_t file, const void *buf,
unsigned int nbytes, unsigned int *written);
extern errcode_t ext2fs_file_llseek(ext2_file_t file, __u64 offset,
int whence, __u64 *ret_pos);
extern errcode_t ext2fs_file_lseek(ext2_file_t file, ext2_off_t offset,
int whence, ext2_off_t *ret_pos);
errcode_t ext2fs_file_get_lsize(ext2_file_t file, __u64 *ret_size);
extern ext2_off_t ext2fs_file_get_size(ext2_file_t file);
extern errcode_t ext2fs_file_set_size(ext2_file_t file, ext2_off_t size);
extern errcode_t ext2fs_file_set_size2(ext2_file_t file, ext2_off64_t size);
/* finddev.c */
extern char *ext2fs_find_block_device(dev_t device);
/* flushb.c */
extern errcode_t ext2fs_sync_device(int fd, int flushb);
/* freefs.c */
extern void ext2fs_free(ext2_filsys fs);
extern void ext2fs_free_dblist(ext2_dblist dblist);
extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb);
extern void ext2fs_u32_list_free(ext2_u32_list bb);
/* gen_bitmap.c */
extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap);
extern errcode_t ext2fs_make_generic_bitmap(errcode_t magic, ext2_filsys fs,
__u32 start, __u32 end,
__u32 real_end,
const char *descr, char *init_map,
ext2fs_generic_bitmap *ret);
extern errcode_t ext2fs_allocate_generic_bitmap(__u32 start,
__u32 end,
__u32 real_end,
const char *descr,
ext2fs_generic_bitmap *ret);
extern errcode_t ext2fs_copy_generic_bitmap(ext2fs_generic_bitmap src,
ext2fs_generic_bitmap *dest);
extern void ext2fs_clear_generic_bitmap(ext2fs_generic_bitmap bitmap);
extern errcode_t ext2fs_fudge_generic_bitmap_end(ext2fs_inode_bitmap bitmap,
errcode_t magic,
errcode_t neq,
ext2_ino_t end,
ext2_ino_t *oend);
extern void ext2fs_set_generic_bitmap_padding(ext2fs_generic_bitmap map);
extern errcode_t ext2fs_resize_generic_bitmap(errcode_t magic,
__u32 new_end,
__u32 new_real_end,
ext2fs_generic_bitmap bmap);
extern errcode_t ext2fs_compare_generic_bitmap(errcode_t magic, errcode_t neq,
ext2fs_generic_bitmap bm1,
ext2fs_generic_bitmap bm2);
extern errcode_t ext2fs_get_generic_bitmap_range(ext2fs_generic_bitmap bmap,
errcode_t magic,
__u32 start, __u32 num,
void *out);
extern errcode_t ext2fs_set_generic_bitmap_range(ext2fs_generic_bitmap bmap,
errcode_t magic,
__u32 start, __u32 num,
void *in);
extern errcode_t ext2fs_find_first_zero_generic_bitmap(ext2fs_generic_bitmap bitmap,
__u32 start, __u32 end,
__u32 *out);
extern errcode_t ext2fs_find_first_set_generic_bitmap(ext2fs_generic_bitmap bitmap,
__u32 start, __u32 end,
__u32 *out);
/* gen_bitmap64.c */
void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap);
errcode_t ext2fs_alloc_generic_bmap(ext2_filsys fs, errcode_t magic,
int type, __u64 start, __u64 end,
__u64 real_end,
const char *descr,
ext2fs_generic_bitmap *ret);
errcode_t ext2fs_copy_generic_bmap(ext2fs_generic_bitmap src,
ext2fs_generic_bitmap *dest);
void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
errcode_t ext2fs_fudge_generic_bmap_end(ext2fs_generic_bitmap bitmap,
errcode_t neq,
__u64 end, __u64 *oend);
void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
errcode_t ext2fs_resize_generic_bmap(ext2fs_generic_bitmap bmap,
__u64 new_end,
__u64 new_real_end);
errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
ext2fs_generic_bitmap bm1,
ext2fs_generic_bitmap bm2);
errcode_t ext2fs_get_generic_bmap_range(ext2fs_generic_bitmap bmap,
__u64 start, unsigned int num,
void *out);
errcode_t ext2fs_set_generic_bmap_range(ext2fs_generic_bitmap bmap,
__u64 start, unsigned int num,
void *in);
errcode_t ext2fs_convert_subcluster_bitmap(ext2_filsys fs,
ext2fs_block_bitmap *bitmap);
/* get_num_dirs.c */
extern errcode_t ext2fs_get_num_dirs(ext2_filsys fs, ext2_ino_t *ret_num_dirs);
/* getsize.c */
extern errcode_t ext2fs_get_device_size(const char *file, int blocksize,
blk_t *retblocks);
extern errcode_t ext2fs_get_device_size2(const char *file, int blocksize,
blk64_t *retblocks);
/* getsectsize.c */
extern int ext2fs_get_dio_alignment(int fd);
errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize);
errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize);
/* i_block.c */
errcode_t ext2fs_iblk_add_blocks(ext2_filsys fs, struct ext2_inode *inode,
blk64_t num_blocks);
errcode_t ext2fs_iblk_sub_blocks(ext2_filsys fs, struct ext2_inode *inode,
blk64_t num_blocks);
errcode_t ext2fs_iblk_set(ext2_filsys fs, struct ext2_inode *inode, blk64_t b);
/* imager.c */
extern errcode_t ext2fs_image_inode_write(ext2_filsys fs, int fd, int flags);
extern errcode_t ext2fs_image_inode_read(ext2_filsys fs, int fd, int flags);
extern errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int flags);
extern errcode_t ext2fs_image_super_read(ext2_filsys fs, int fd, int flags);
extern errcode_t ext2fs_image_bitmap_write(ext2_filsys fs, int fd, int flags);
extern errcode_t ext2fs_image_bitmap_read(ext2_filsys fs, int fd, int flags);
/* ind_block.c */
errcode_t ext2fs_read_ind_block(ext2_filsys fs, blk_t blk, void *buf);
errcode_t ext2fs_write_ind_block(ext2_filsys fs, blk_t blk, void *buf);
/* initialize.c */
extern errcode_t ext2fs_initialize(const char *name, int flags,
struct ext2_super_block *param,
io_manager manager, ext2_filsys *ret_fs);
/* icount.c */
extern void ext2fs_free_icount(ext2_icount_t icount);
extern errcode_t ext2fs_create_icount_tdb(ext2_filsys fs, char *tdb_dir,
int flags, ext2_icount_t *ret);
extern errcode_t ext2fs_create_icount2(ext2_filsys fs, int flags,
unsigned int size,
ext2_icount_t hint, ext2_icount_t *ret);
extern errcode_t ext2fs_create_icount(ext2_filsys fs, int flags,
unsigned int size,
ext2_icount_t *ret);
extern errcode_t ext2fs_icount_fetch(ext2_icount_t icount, ext2_ino_t ino,
__u16 *ret);
extern errcode_t ext2fs_icount_increment(ext2_icount_t icount, ext2_ino_t ino,
__u16 *ret);
extern errcode_t ext2fs_icount_decrement(ext2_icount_t icount, ext2_ino_t ino,
__u16 *ret);
extern errcode_t ext2fs_icount_store(ext2_icount_t icount, ext2_ino_t ino,
__u16 count);
extern ext2_ino_t ext2fs_get_icount_size(ext2_icount_t icount);
errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *);
/* inline.c */
extern errcode_t ext2fs_get_memalign(unsigned long size,
unsigned long align, void *ptr);
/* inline_data.c */
extern errcode_t ext2fs_inline_data_init(ext2_filsys fs, ext2_ino_t ino);
extern errcode_t ext2fs_inline_data_size(ext2_filsys fs, ext2_ino_t ino,
size_t *size);
extern errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
void *buf, size_t *size);
extern errcode_t ext2fs_inline_data_set(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
void *buf, size_t size);
/* inode.c */
extern errcode_t ext2fs_create_inode_cache(ext2_filsys fs,
unsigned int cache_size);
extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache);
extern errcode_t ext2fs_flush_icache(ext2_filsys fs);
extern errcode_t ext2fs_get_next_inode_full(ext2_inode_scan scan,
ext2_ino_t *ino,
struct ext2_inode *inode,
int bufsize);
#define EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS 8
extern errcode_t ext2fs_open_inode_scan(ext2_filsys fs, int buffer_blocks,
ext2_inode_scan *ret_scan);
extern void ext2fs_close_inode_scan(ext2_inode_scan scan);
extern errcode_t ext2fs_get_next_inode(ext2_inode_scan scan, ext2_ino_t *ino,
struct ext2_inode *inode);
extern errcode_t ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan,
int group);
extern void ext2fs_set_inode_callback
(ext2_inode_scan scan,
errcode_t (*done_group)(ext2_filsys fs,
ext2_inode_scan scan,
dgrp_t group,
void * priv_data),
void *done_group_data);
extern int ext2fs_inode_scan_flags(ext2_inode_scan scan, int set_flags,
int clear_flags);
extern errcode_t ext2fs_read_inode_full(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode,
int bufsize);
extern errcode_t ext2fs_read_inode(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode);
extern errcode_t ext2fs_read_inode2(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode,
int bufsize, int flags);
extern errcode_t ext2fs_write_inode_full(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode,
int bufsize);
extern errcode_t ext2fs_write_inode(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode);
extern errcode_t ext2fs_write_inode2(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode,
int bufsize, int flags);
extern errcode_t ext2fs_write_new_inode(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode * inode);
extern errcode_t ext2fs_get_blocks(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
extern errcode_t ext2fs_check_directory(ext2_filsys fs, ext2_ino_t ino);
/* inode_io.c */
extern io_manager inode_io_manager;
extern errcode_t ext2fs_inode_io_intern(ext2_filsys fs, ext2_ino_t ino,
char **name);
extern errcode_t ext2fs_inode_io_intern2(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
char **name);
/* ismounted.c */
extern errcode_t ext2fs_check_if_mounted(const char *file, int *mount_flags);
extern errcode_t ext2fs_check_mount_point(const char *device, int *mount_flags,
char *mtpt, int mtlen);
/* punch.c */
/*
* NOTE: This function removes from an inode the blocks "start", "end", and
* every block in between.
*/
extern errcode_t ext2fs_punch(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
char *block_buf, blk64_t start,
blk64_t end);
/* namei.c */
extern errcode_t ext2fs_lookup(ext2_filsys fs, ext2_ino_t dir, const char *name,
int namelen, char *buf, ext2_ino_t *inode);
extern errcode_t ext2fs_namei(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
const char *name, ext2_ino_t *inode);
errcode_t ext2fs_namei_follow(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
const char *name, ext2_ino_t *inode);
extern errcode_t ext2fs_follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t cwd,
ext2_ino_t inode, ext2_ino_t *res_inode);
/* native.c */
int ext2fs_native_flag(void);
/* newdir.c */
extern errcode_t ext2fs_new_dir_block(ext2_filsys fs, ext2_ino_t dir_ino,
ext2_ino_t parent_ino, char **block);
extern errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
ext2_ino_t parent_ino, __u32 *iblock);
/* nls_utf8.c */
extern const struct ext2fs_nls_table *ext2fs_load_nls_table(int encoding);
/* mkdir.c */
extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
const char *name);
/* mkjournal.c */
extern errcode_t ext2fs_zero_blocks(ext2_filsys fs, blk_t blk, int num,
blk_t *ret_blk, int *ret_count);
extern errcode_t ext2fs_zero_blocks2(ext2_filsys fs, blk64_t blk, int num,
blk64_t *ret_blk, int *ret_count);
extern errcode_t ext2fs_create_journal_superblock(ext2_filsys fs,
__u32 num_blocks, int flags,
char **ret_jsb);
extern errcode_t ext2fs_add_journal_device(ext2_filsys fs,
ext2_filsys journal_dev);
extern errcode_t ext2fs_add_journal_inode(ext2_filsys fs, blk_t num_blocks,
int flags);
extern errcode_t ext2fs_add_journal_inode2(ext2_filsys fs, blk_t num_blocks,
blk64_t goal, int flags);
extern int ext2fs_default_journal_size(__u64 num_blocks);
extern int ext2fs_journal_sb_start(int blocksize);
/* openfs.c */
extern errcode_t ext2fs_open(const char *name, int flags, int superblock,
unsigned int block_size, io_manager manager,
ext2_filsys *ret_fs);
extern errcode_t ext2fs_open2(const char *name, const char *io_options,
int flags, int superblock,
unsigned int block_size, io_manager manager,
ext2_filsys *ret_fs);
/*
* The dgrp_t argument to these two functions is not actually a group number
* but a block number offset within a group table! Convert with the formula
* (group_number / groups_per_block).
*/
extern blk64_t ext2fs_descriptor_block_loc2(ext2_filsys fs,
blk64_t group_block, dgrp_t i);
extern blk_t ext2fs_descriptor_block_loc(ext2_filsys fs, blk_t group_block,
dgrp_t i);
errcode_t ext2fs_get_data_io(ext2_filsys fs, io_channel *old_io);
errcode_t ext2fs_set_data_io(ext2_filsys fs, io_channel new_io);
errcode_t ext2fs_rewrite_to_io(ext2_filsys fs, io_channel new_io);
/* get_pathname.c */
extern errcode_t ext2fs_get_pathname(ext2_filsys fs, ext2_ino_t dir, ext2_ino_t ino,
char **name);
/* link.c */
errcode_t ext2fs_link(ext2_filsys fs, ext2_ino_t dir, const char *name,
ext2_ino_t ino, int flags);
errcode_t ext2fs_unlink(ext2_filsys fs, ext2_ino_t dir, const char *name,
ext2_ino_t ino, int flags);
/* symlink.c */
errcode_t ext2fs_symlink(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t ino,
const char *name, const char *target);
int ext2fs_is_fast_symlink(struct ext2_inode *inode);
/* mmp.c */
errcode_t ext2fs_mmp_read(ext2_filsys fs, blk64_t mmp_blk, void *buf);
errcode_t ext2fs_mmp_write(ext2_filsys fs, blk64_t mmp_blk, void *buf);
errcode_t ext2fs_mmp_clear(ext2_filsys fs);
errcode_t ext2fs_mmp_init(ext2_filsys fs);
errcode_t ext2fs_mmp_start(ext2_filsys fs);
errcode_t ext2fs_mmp_update(ext2_filsys fs);
errcode_t ext2fs_mmp_update2(ext2_filsys fs, int immediately);
errcode_t ext2fs_mmp_stop(ext2_filsys fs);
unsigned ext2fs_mmp_new_seq(void);
/* read_bb.c */
extern errcode_t ext2fs_read_bb_inode(ext2_filsys fs,
ext2_badblocks_list *bb_list);
/* read_bb_file.c */
extern errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
ext2_badblocks_list *bb_list,
void *priv_data,
void (*invalid)(ext2_filsys fs,
blk_t blk,
char *badstr,
void *priv_data));
extern errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
ext2_badblocks_list *bb_list,
void (*invalid)(ext2_filsys fs,
blk_t blk));
/* res_gdt.c */
extern errcode_t ext2fs_create_resize_inode(ext2_filsys fs);
/*sha256.c */
#define EXT2FS_SHA256_LENGTH 32
#if 0
extern void ext2fs_sha256(const unsigned char *in, unsigned long in_size,
unsigned char out[EXT2FS_SHA256_LENGTH]);
#endif
/* sha512.c */
#define EXT2FS_SHA512_LENGTH 64
extern void ext2fs_sha512(const unsigned char *in, unsigned long in_size,
unsigned char out[EXT2FS_SHA512_LENGTH]);
/* swapfs.c */
extern errcode_t ext2fs_dirent_swab_in2(ext2_filsys fs, char *buf, size_t size,
int flags);
extern errcode_t ext2fs_dirent_swab_in(ext2_filsys fs, char *buf, int flags);
extern errcode_t ext2fs_dirent_swab_out2(ext2_filsys fs, char *buf, size_t size,
int flags);
extern errcode_t ext2fs_dirent_swab_out(ext2_filsys fs, char *buf, int flags);
extern void ext2fs_swap_ext_attr(char *to, char *from, int bufsize,
int has_header);
extern void ext2fs_swap_ext_attr_header(struct ext2_ext_attr_header *to_header,
struct ext2_ext_attr_header *from_hdr);
extern void ext2fs_swap_ext_attr_entry(struct ext2_ext_attr_entry *to_entry,
struct ext2_ext_attr_entry *from_entry);
extern void ext2fs_swap_super(struct ext2_super_block * super);
extern void ext2fs_swap_group_desc(struct ext2_group_desc *gdp);
extern void ext2fs_swap_group_desc2(ext2_filsys, struct ext2_group_desc *gdp);
extern void ext2fs_swap_inode_full(ext2_filsys fs, struct ext2_inode_large *t,
struct ext2_inode_large *f, int hostorder,
int bufsize);
extern void ext2fs_swap_inode(ext2_filsys fs,struct ext2_inode *t,
struct ext2_inode *f, int hostorder);
extern void ext2fs_swap_mmp(struct mmp_struct *mmp);
/* unix_io.c */
extern int ext2fs_open_file(const char *pathname, int flags, mode_t mode);
extern int ext2fs_stat(const char *path, ext2fs_struct_stat *buf);
extern int ext2fs_fstat(int fd, ext2fs_struct_stat *buf);
/* valid_blk.c */
extern int ext2fs_inode_has_valid_blocks(struct ext2_inode *inode);
extern int ext2fs_inode_has_valid_blocks2(ext2_filsys fs,
struct ext2_inode *inode);
/* version.c */
extern int ext2fs_parse_version_string(const char *ver_string);
extern int ext2fs_get_library_version(const char **ver_string,
const char **date_string);
/* write_bb_file.c */
extern errcode_t ext2fs_write_bb_FILE(ext2_badblocks_list bb_list,
unsigned int flags,
FILE *f);
/* inline functions */
#ifdef NO_INLINE_FUNCS
extern errcode_t ext2fs_get_mem(unsigned long size, void *ptr);
extern errcode_t ext2fs_get_memzero(unsigned long size, void *ptr);
extern errcode_t ext2fs_get_array(unsigned long count,
unsigned long size, void *ptr);
extern errcode_t ext2fs_get_arrayzero(unsigned long count,
unsigned long size, void *ptr);
extern errcode_t ext2fs_free_mem(void *ptr);
extern errcode_t ext2fs_resize_mem(unsigned long old_size,
unsigned long size, void *ptr);
extern errcode_t ext2fs_resize_array(unsigned long old_count, unsigned long count,
unsigned long size, void *ptr);
extern void ext2fs_mark_super_dirty(ext2_filsys fs);
extern void ext2fs_mark_changed(ext2_filsys fs);
extern int ext2fs_test_changed(ext2_filsys fs);
extern void ext2fs_mark_valid(ext2_filsys fs);
extern void ext2fs_unmark_valid(ext2_filsys fs);
extern int ext2fs_test_valid(ext2_filsys fs);
extern void ext2fs_mark_ib_dirty(ext2_filsys fs);
extern void ext2fs_mark_bb_dirty(ext2_filsys fs);
extern int ext2fs_test_ib_dirty(ext2_filsys fs);
extern int ext2fs_test_bb_dirty(ext2_filsys fs);
extern dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk);
extern dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino);
extern blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group);
extern blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group);
extern blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
struct ext2_inode *inode);
extern int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks);
extern unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b);
extern __u64 ext2fs_div64_ceil(__u64 a, __u64 b);
extern int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry);
extern void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len);
extern int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry);
extern void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type);
extern struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode);
extern const struct ext2_inode *ext2fs_const_inode(const struct ext2_inode_large * large_inode);
#endif
/*
* The actual inlined functions definitions themselves...
*
* If NO_INLINE_FUNCS is defined, then we won't try to do inline
* functions at all!
*/
#if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
#ifdef INCLUDE_INLINE_FUNCS
#define _INLINE_ extern
#else
#if (__STDC_VERSION__ >= 199901L)
#define _INLINE_ inline
#else
#ifdef __GNUC__
#define _INLINE_ extern __inline__
#else /* For Watcom C */
#define _INLINE_ extern inline
#endif /* __GNUC__ */
#endif /* __STDC_VERSION__ >= 199901L */
#endif
#ifndef EXT2_CUSTOM_MEMORY_ROUTINES
#include <string.h>
/*
* Allocate memory. The 'ptr' arg must point to a pointer.
*/
_INLINE_ errcode_t ext2fs_get_mem(unsigned long size, void *ptr)
{
void *pp;
pp = malloc(size);
if (!pp)
return EXT2_ET_NO_MEMORY;
memcpy(ptr, &pp, sizeof (pp));
return 0;
}
_INLINE_ errcode_t ext2fs_get_memzero(unsigned long size, void *ptr)
{
void *pp;
pp = malloc(size);
if (!pp)
return EXT2_ET_NO_MEMORY;
memset(pp, 0, size);
memcpy(ptr, &pp, sizeof(pp));
return 0;
}
_INLINE_ errcode_t ext2fs_get_array(unsigned long count, unsigned long size,
void *ptr)
{
if (count && (~0UL)/count < size)
return EXT2_ET_NO_MEMORY;
return ext2fs_get_mem(count*size, ptr);
}
_INLINE_ errcode_t ext2fs_get_arrayzero(unsigned long count,
unsigned long size, void *ptr)
{
if (count && (~0UL)/count < size)
return EXT2_ET_NO_MEMORY;
return ext2fs_get_memzero((size_t)count * size, ptr);
}
/*
* Free memory. The 'ptr' arg must point to a pointer.
*/
_INLINE_ errcode_t ext2fs_free_mem(void *ptr)
{
void *p;
memcpy(&p, ptr, sizeof(p));
free(p);
p = 0;
memcpy(ptr, &p, sizeof(p));
return 0;
}
/*
* Resize memory. The 'ptr' arg must point to a pointer.
*/
_INLINE_ errcode_t ext2fs_resize_mem(unsigned long EXT2FS_ATTR((unused)) old_size,
unsigned long size, void *ptr)
{
void *p;
/* Use "memcpy" for pointer assignments here to avoid problems
* with C99 strict type aliasing rules. */
memcpy(&p, ptr, sizeof(p));
p = realloc(p, size);
if (!p)
return EXT2_ET_NO_MEMORY;
memcpy(ptr, &p, sizeof(p));
return 0;
}
/*
* Resize array. The 'ptr' arg must point to a pointer.
*/
_INLINE_ errcode_t ext2fs_resize_array(unsigned long size,
unsigned long old_count,
unsigned long count, void *ptr)
{
unsigned long old_size;
errcode_t retval;
if (count && (~0UL)/count < size)
return EXT2_ET_NO_MEMORY;
size *= count;
old_size = size * old_count;
retval = ext2fs_resize_mem(old_size, size, ptr);
if (retval)
return retval;
if (size > old_size) {
void *p;
memcpy(&p, ptr, sizeof(p));
memset((char *)p + old_size, 0, size - old_size);
memcpy(ptr, &p, sizeof(p));
}
return 0;
}
#endif /* Custom memory routines */
/*
* Mark a filesystem superblock as dirty
*/
_INLINE_ void ext2fs_mark_super_dirty(ext2_filsys fs)
{
fs->flags |= EXT2_FLAG_DIRTY | EXT2_FLAG_CHANGED;
}
/*
* Mark a filesystem as changed
*/
_INLINE_ void ext2fs_mark_changed(ext2_filsys fs)
{
fs->flags |= EXT2_FLAG_CHANGED;
}
/*
* Check to see if a filesystem has changed
*/
_INLINE_ int ext2fs_test_changed(ext2_filsys fs)
{
return (fs->flags & EXT2_FLAG_CHANGED);
}
/*
* Mark a filesystem as valid
*/
_INLINE_ void ext2fs_mark_valid(ext2_filsys fs)
{
fs->flags |= EXT2_FLAG_VALID;
}
/*
* Mark a filesystem as NOT valid
*/
_INLINE_ void ext2fs_unmark_valid(ext2_filsys fs)
{
fs->flags &= ~EXT2_FLAG_VALID;
}
/*
* Check to see if a filesystem is valid
*/
_INLINE_ int ext2fs_test_valid(ext2_filsys fs)
{
return (fs->flags & EXT2_FLAG_VALID);
}
/*
* Mark the inode bitmap as dirty
*/
_INLINE_ void ext2fs_mark_ib_dirty(ext2_filsys fs)
{
fs->flags |= EXT2_FLAG_IB_DIRTY | EXT2_FLAG_CHANGED;
}
/*
* Mark the block bitmap as dirty
*/
_INLINE_ void ext2fs_mark_bb_dirty(ext2_filsys fs)
{
fs->flags |= EXT2_FLAG_BB_DIRTY | EXT2_FLAG_CHANGED;
}
/*
* Check to see if a filesystem's inode bitmap is dirty
*/
_INLINE_ int ext2fs_test_ib_dirty(ext2_filsys fs)
{
return (fs->flags & EXT2_FLAG_IB_DIRTY);
}
/*
* Check to see if a filesystem's block bitmap is dirty
*/
_INLINE_ int ext2fs_test_bb_dirty(ext2_filsys fs)
{
return (fs->flags & EXT2_FLAG_BB_DIRTY);
}
/*
* Return the group # of a block
*/
_INLINE_ dgrp_t ext2fs_group_of_blk(ext2_filsys fs, blk_t blk)
{
return ext2fs_group_of_blk2(fs, blk);
}
/*
* Return the group # of an inode number
*/
_INLINE_ dgrp_t ext2fs_group_of_ino(ext2_filsys fs, ext2_ino_t ino)
{
return (ino - 1) / fs->super->s_inodes_per_group;
}
/*
* Return the first block (inclusive) in a group
*/
_INLINE_ blk_t ext2fs_group_first_block(ext2_filsys fs, dgrp_t group)
{
return (blk_t) ext2fs_group_first_block2(fs, group);
}
/*
* Return the last block (inclusive) in a group
*/
_INLINE_ blk_t ext2fs_group_last_block(ext2_filsys fs, dgrp_t group)
{
return (blk_t) ext2fs_group_last_block2(fs, group);
}
_INLINE_ blk_t ext2fs_inode_data_blocks(ext2_filsys fs,
struct ext2_inode *inode)
{
return (blk_t) ext2fs_inode_data_blocks2(fs, inode);
}
_INLINE_ int ext2fs_htree_intnode_maxrecs(ext2_filsys fs, int blocks)
{
int csum_size = 0;
if ((EXT2_SB(fs->super)->s_feature_ro_compat &
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) != 0)
csum_size = sizeof(struct ext2_dx_tail);
return blocks * ((fs->blocksize - (8 + csum_size)) /
sizeof(struct ext2_dx_entry));
}
/*
* This is an efficient, overflow safe way of calculating ceil((1.0 * a) / b)
*/
_INLINE_ unsigned int ext2fs_div_ceil(unsigned int a, unsigned int b)
{
if (!a)
return 0;
return ((a - 1) / b) + 1;
}
_INLINE_ __u64 ext2fs_div64_ceil(__u64 a, __u64 b)
{
if (!a)
return 0;
return ((a - 1) / b) + 1;
}
_INLINE_ int ext2fs_dirent_name_len(const struct ext2_dir_entry *entry)
{
return entry->name_len & 0xff;
}
_INLINE_ void ext2fs_dirent_set_name_len(struct ext2_dir_entry *entry, int len)
{
entry->name_len = (entry->name_len & 0xff00) | (len & 0xff);
}
_INLINE_ int ext2fs_dirent_file_type(const struct ext2_dir_entry *entry)
{
return entry->name_len >> 8;
}
_INLINE_ void ext2fs_dirent_set_file_type(struct ext2_dir_entry *entry, int type)
{
entry->name_len = (entry->name_len & 0xff) | (type << 8);
}
_INLINE_ struct ext2_inode *ext2fs_inode(struct ext2_inode_large * large_inode)
{
/* It is always safe to convert large inode to a small inode */
return (struct ext2_inode *) large_inode;
}
_INLINE_ const struct ext2_inode *
ext2fs_const_inode(const struct ext2_inode_large * large_inode)
{
/* It is always safe to convert large inode to a small inode */
return (const struct ext2_inode *) large_inode;
}
#undef _INLINE_
#endif
/* htree levels for ext4 */
#define EXT4_HTREE_LEVEL_COMPAT 2
#define EXT4_HTREE_LEVEL 3
static inline unsigned int ext2_dir_htree_level(ext2_filsys fs)
{
if (ext2fs_has_feature_largedir(fs->super))
return EXT4_HTREE_LEVEL;
return EXT4_HTREE_LEVEL_COMPAT;
}
#ifdef __cplusplus
}
#endif
#endif /* _EXT2FS_EXT2FS_H */
PK 2 �Z�f ext2_io.hnu �[��� /*
* io.h --- the I/O manager abstraction
*
* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Library
* General Public License, version 2.
* %End-Header%
*/
#ifndef _EXT2FS_EXT2_IO_H
#define _EXT2FS_EXT2_IO_H
#include <ext2fs/ext2_types.h>
/*
* ext2_loff_t is defined here since unix_io.c needs it.
*/
#if defined(__GNUC__) || defined(HAS_LONG_LONG)
typedef long long ext2_loff_t;
#else
typedef long ext2_loff_t;
#endif
/* llseek.c */
ext2_loff_t ext2fs_llseek (int, ext2_loff_t, int);
typedef struct struct_io_manager *io_manager;
typedef struct struct_io_channel *io_channel;
typedef struct struct_io_stats *io_stats;
#define CHANNEL_FLAGS_WRITETHROUGH 0x01
#define CHANNEL_FLAGS_DISCARD_ZEROES 0x02
#define CHANNEL_FLAGS_BLOCK_DEVICE 0x04
#define io_channel_discard_zeroes_data(i) (i->flags & CHANNEL_FLAGS_DISCARD_ZEROES)
struct struct_io_channel {
errcode_t magic;
io_manager manager;
char *name;
int block_size;
errcode_t (*read_error)(io_channel channel,
unsigned long block,
int count,
void *data,
size_t size,
int actual_bytes_read,
errcode_t error);
errcode_t (*write_error)(io_channel channel,
unsigned long block,
int count,
const void *data,
size_t size,
int actual_bytes_written,
errcode_t error);
int refcount;
int flags;
long reserved[14];
void *private_data;
void *app_data;
int align;
};
struct struct_io_stats {
int num_fields;
int reserved;
unsigned long long bytes_read;
unsigned long long bytes_written;
};
struct struct_io_manager {
errcode_t magic;
const char *name;
errcode_t (*open)(const char *name, int flags, io_channel *channel);
errcode_t (*close)(io_channel channel);
errcode_t (*set_blksize)(io_channel channel, int blksize);
errcode_t (*read_blk)(io_channel channel, unsigned long block,
int count, void *data);
errcode_t (*write_blk)(io_channel channel, unsigned long block,
int count, const void *data);
errcode_t (*flush)(io_channel channel);
errcode_t (*write_byte)(io_channel channel, unsigned long offset,
int count, const void *data);
errcode_t (*set_option)(io_channel channel, const char *option,
const char *arg);
errcode_t (*get_stats)(io_channel channel, io_stats *io_stats);
errcode_t (*read_blk64)(io_channel channel, unsigned long long block,
int count, void *data);
errcode_t (*write_blk64)(io_channel channel, unsigned long long block,
int count, const void *data);
errcode_t (*discard)(io_channel channel, unsigned long long block,
unsigned long long count);
errcode_t (*cache_readahead)(io_channel channel,
unsigned long long block,
unsigned long long count);
errcode_t (*zeroout)(io_channel channel, unsigned long long block,
unsigned long long count);
long reserved[14];
};
#define IO_FLAG_RW 0x0001
#define IO_FLAG_EXCLUSIVE 0x0002
#define IO_FLAG_DIRECT_IO 0x0004
#define IO_FLAG_FORCE_BOUNCE 0x0008
/*
* Convenience functions....
*/
#define io_channel_close(c) ((c)->manager->close((c)))
#define io_channel_set_blksize(c,s) ((c)->manager->set_blksize((c),s))
#define io_channel_read_blk(c,b,n,d) ((c)->manager->read_blk((c),b,n,d))
#define io_channel_write_blk(c,b,n,d) ((c)->manager->write_blk((c),b,n,d))
#define io_channel_flush(c) ((c)->manager->flush((c)))
#define io_channel_bumpcount(c) ((c)->refcount++)
/* io_manager.c */
extern errcode_t io_channel_set_options(io_channel channel,
const char *options);
extern errcode_t io_channel_write_byte(io_channel channel,
unsigned long offset,
int count, const void *data);
extern errcode_t io_channel_read_blk64(io_channel channel,
unsigned long long block,
int count, void *data);
extern errcode_t io_channel_write_blk64(io_channel channel,
unsigned long long block,
int count, const void *data);
extern errcode_t io_channel_discard(io_channel channel,
unsigned long long block,
unsigned long long count);
extern errcode_t io_channel_zeroout(io_channel channel,
unsigned long long block,
unsigned long long count);
extern errcode_t io_channel_alloc_buf(io_channel channel,
int count, void *ptr);
extern errcode_t io_channel_cache_readahead(io_channel io,
unsigned long long block,
unsigned long long count);
/* unix_io.c */
extern io_manager unix_io_manager;
extern io_manager unixfd_io_manager;
/* sparse_io.c */
extern io_manager sparse_io_manager;
extern io_manager sparsefd_io_manager;
/* undo_io.c */
extern io_manager undo_io_manager;
extern errcode_t set_undo_io_backing_manager(io_manager manager);
extern errcode_t set_undo_io_backup_file(char *file_name);
/* test_io.c */
extern io_manager test_io_manager, test_io_backing_manager;
extern void (*test_io_cb_read_blk)
(unsigned long block, int count, errcode_t err);
extern void (*test_io_cb_write_blk)
(unsigned long block, int count, errcode_t err);
extern void (*test_io_cb_read_blk64)
(unsigned long long block, int count, errcode_t err);
extern void (*test_io_cb_write_blk64)
(unsigned long long block, int count, errcode_t err);
extern void (*test_io_cb_set_blksize)
(int blksize, errcode_t err);
#endif /* _EXT2FS_EXT2_IO_H */
PK 2 �Z7�@
qcow2.hnu �[��� /*
* qcow2.h --- structures and function prototypes for qcow2.c to generate
* qcow2 formatted disk images. This format is used originally by QEMU
* for virtual machines, and stores the filesystem data on disk in a
* packed format to avoid creating sparse image files that need lots of
* seeking to read and write.
*
* The qcow2 format supports zlib compression, but that is not yet
* implemented.
*
* It is possible to directly mount a qcow2 image using qemu-nbd:
*
* [root]# modprobe nbd max_part=63
* [root]# qemu-nbd -c /dev/nbd0 image.img
* [root]# mount /dev/nbd0p1 /mnt/qemu
*
* Format details at http://people.gnome.org/~markmc/qcow-image-format.html
*
* Copyright (C) 2010 Red Hat, Inc., Lukas Czerner <lczerner@redhat.com>
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*/
/* Number of l2 tables in memory before writeback */
#define L2_CACHE_PREALLOC 512
#define QCOW_MAGIC (('Q' << 24) | ('F' << 16) | ('I' << 8) | 0xfb)
#define QCOW_VERSION 2
#define QCOW_OFLAG_COPIED (1ULL << 63)
#define QCOW_OFLAG_COMPRESSED (1ULL << 62)
#define QCOW_COMPRESSED 1
#define QCOW_ENCRYPTED 2
#define QCOW_CORRUPTED 3
struct ext2_qcow2_hdr {
__u32 magic;
__u32 version;
__u64 backing_file_offset;
__u32 backing_file_size;
__u32 cluster_bits;
__u64 size;
__u32 crypt_method;
__u32 l1_size;
__u64 l1_table_offset;
__u64 refcount_table_offset;
__u32 refcount_table_clusters;
__u32 nb_snapshots;
__u64 snapshots_offset;
};
typedef struct ext2_qcow2_l2_table L2_CACHE_HEAD;
struct ext2_qcow2_l2_table {
__u32 l1_index;
__u64 offset;
__u64 *data;
L2_CACHE_HEAD *next;
};
struct ext2_qcow2_l2_cache {
L2_CACHE_HEAD *used_head;
L2_CACHE_HEAD *used_tail;
L2_CACHE_HEAD *free_head;
__u32 free;
__u32 count;
__u64 next_offset;
};
struct ext2_qcow2_refcount {
__u64 *refcount_table;
__u64 refcount_table_offset;
__u64 refcount_block_offset;
__u32 refcount_table_clusters;
__u32 refcount_table_index;
__u32 refcount_block_index;
__u16 *refcount_block;
};
struct ext2_qcow2_image {
int fd;
struct ext2_qcow2_hdr *hdr;
struct ext2_qcow2_l2_cache *l2_cache;
struct ext2_qcow2_refcount refcount;
__u32 cluster_size;
__u32 cluster_bits;
__u32 l1_size;
__u32 l2_size;
__u64 *l1_table;
__u64 l2_offset;
__u64 l1_offset;
__u64 image_size;
};
/* Function prototypes */
/* qcow2.c */
/* Functions for converting qcow2 image into raw image */
struct ext2_qcow2_hdr *qcow2_read_header(int);
int qcow2_write_raw_image(int, int, struct ext2_qcow2_hdr *);
PK 2 �Z��+t t ext2_types-x86_64.hnu �[��� /*
* If linux/types.h is already been included, assume it has defined
* everything we need. (cross fingers) Other header files may have
* also defined the types that we need.
*/
#if (!defined(_LINUX_TYPES_H) && !defined(_BLKID_TYPES_H) && \
!defined(_EXT2_TYPES_H))
#define _EXT2_TYPES_H
#define __S8_TYPEDEF __signed__ char
#define __U8_TYPEDEF unsigned char
#define __S16_TYPEDEF __signed__ short
#define __U16_TYPEDEF unsigned short
#define __S32_TYPEDEF __signed__ int
#define __U32_TYPEDEF unsigned int
#define __S64_TYPEDEF __signed__ long long
#define __U64_TYPEDEF unsigned long long
#ifndef HAVE___U8
#define HAVE___U8
#ifdef __U8_TYPEDEF
typedef __U8_TYPEDEF __u8;
#else
typedef unsigned char __u8;
#endif
#endif /* HAVE___U8 */
#ifndef HAVE___S8
#define HAVE___S8
#ifdef __S8_TYPEDEF
typedef __S8_TYPEDEF __s8;
#else
typedef signed char __s8;
#endif
#endif /* HAVE___S8 */
#ifndef HAVE___U16
#define HAVE___U16
#ifdef __U16_TYPEDEF
typedef __U16_TYPEDEF __u16;
#else
#if (4 == 2)
typedef unsigned int __u16;
#else
#if (2 == 2)
typedef unsigned short __u16;
#else
#undef HAVE___U16
?==error: undefined 16 bit type
#endif /* SIZEOF_SHORT == 2 */
#endif /* SIZEOF_INT == 2 */
#endif /* __U16_TYPEDEF */
#endif /* HAVE___U16 */
#ifndef HAVE___S16
#define HAVE___S16
#ifdef __S16_TYPEDEF
typedef __S16_TYPEDEF __s16;
#else
#if (4 == 2)
typedef int __s16;
#else
#if (2 == 2)
typedef short __s16;
#else
#undef HAVE___S16
?==error: undefined 16 bit type
#endif /* SIZEOF_SHORT == 2 */
#endif /* SIZEOF_INT == 2 */
#endif /* __S16_TYPEDEF */
#endif /* HAVE___S16 */
#ifndef HAVE___U32
#define HAVE___U32
#ifdef __U32_TYPEDEF
typedef __U32_TYPEDEF __u32;
#else
#if (4 == 4)
typedef unsigned int __u32;
#else
#if (8 == 4)
typedef unsigned long __u32;
#else
#if (2 == 4)
typedef unsigned short __u32;
#else
#undef HAVE___U32
?== error: undefined 32 bit type
#endif /* SIZEOF_SHORT == 4 */
#endif /* SIZEOF_LONG == 4 */
#endif /* SIZEOF_INT == 4 */
#endif /* __U32_TYPEDEF */
#endif /* HAVE___U32 */
#ifndef HAVE___S32
#define HAVE___S32
#ifdef __S32_TYPEDEF
typedef __S32_TYPEDEF __s32;
#else
#if (4 == 4)
typedef int __s32;
#else
#if (8 == 4)
typedef long __s32;
#else
#if (2 == 4)
typedef short __s32;
#else
#undef HAVE___S32
?== error: undefined 32 bit type
#endif /* SIZEOF_SHORT == 4 */
#endif /* SIZEOF_LONG == 4 */
#endif /* SIZEOF_INT == 4 */
#endif /* __S32_TYPEDEF */
#endif /* HAVE___S32 */
#ifndef HAVE___U64
#define HAVE___U64
#ifdef __U64_TYPEDEF
typedef __U64_TYPEDEF __u64;
#else
#if (4 == 8)
typedef unsigned int __u64;
#else
#if (8 == 8)
typedef unsigned long long __u64;
#else
#if (8 == 8)
typedef unsigned long __u64;
#else
#undef HAVE___U64
?== error: undefined 64 bit type
#endif /* SIZEOF_LONG_LONG == 8 */
#endif /* SIZEOF_LONG == 8 */
#endif /* SIZEOF_INT == 8 */
#endif /* __U64_TYPEDEF */
#endif /* HAVE___U64 */
#ifndef HAVE___S64
#define HAVE___S64
#ifdef __S64_TYPEDEF
typedef __S64_TYPEDEF __s64;
#else
#if (4 == 8)
typedef int __s64;
#else
#if (8 == 8)
#if defined(__GNUC__)
typedef __signed__ long long __s64;
#else
typedef signed long long __s64;
#endif /* __GNUC__ */
#else
#if (8 == 8)
typedef long __s64;
#else
#undef HAVE___S64
?== error: undefined 64 bit type
#endif /* SIZEOF_LONG_LONG == 8 */
#endif /* SIZEOF_LONG == 8 */
#endif /* SIZEOF_INT == 8 */
#endif /* __S64_TYPEDEF */
#endif /* HAVE___S64 */
#undef __S8_TYPEDEF
#undef __U8_TYPEDEF
#undef __S16_TYPEDEF
#undef __U16_TYPEDEF
#undef __S32_TYPEDEF
#undef __U32_TYPEDEF
#undef __S64_TYPEDEF
#undef __U64_TYPEDEF
#endif /* _*_TYPES_H */
#include <stdint.h>
/* endian checking stuff */
#ifndef EXT2_ENDIAN_H_
#define EXT2_ENDIAN_H_
#ifdef __CHECKER__
# ifndef __bitwise
# define __bitwise __attribute__((bitwise))
# endif
#define __force __attribute__((force))
#else
# ifndef __bitwise
# define __bitwise
# endif
#define __force
#endif
typedef __u16 __bitwise __le16;
typedef __u32 __bitwise __le32;
typedef __u64 __bitwise __le64;
typedef __u16 __bitwise __be16;
typedef __u32 __bitwise __be32;
typedef __u64 __bitwise __be64;
#endif /* EXT2_ENDIAN_H_ */
/* These defines are needed for the public ext2fs.h header file */
#define HAVE_SYS_TYPES_H 1
#undef WORDS_BIGENDIAN
PK 2 �Z�s���V �V bitops.hnu �[��� /*
* bitops.h --- Bitmap frobbing code. The byte swapping routines are
* also included here.
*
* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Library
* General Public License, version 2.
* %End-Header%
*/
#ifdef WORDS_BIGENDIAN
#define ext2fs_cpu_to_le64(x) ((__force __le64)ext2fs_swab64((__u64)(x)))
#define ext2fs_le64_to_cpu(x) ext2fs_swab64((__force __u64)(__le64)(x))
#define ext2fs_cpu_to_le32(x) ((__force __le32)ext2fs_swab32((__u32)(x)))
#define ext2fs_le32_to_cpu(x) ext2fs_swab32((__force __u32)(__le32)(x))
#define ext2fs_cpu_to_le16(x) ((__force __le16)ext2fs_swab16((__u16)(x)))
#define ext2fs_le16_to_cpu(x) ext2fs_swab16((__force __u16)(__le16)(x))
#define ext2fs_cpu_to_be64(x) ((__force __be64)(__u64)(x))
#define ext2fs_be64_to_cpu(x) ((__force __u64)(__be64)(x))
#define ext2fs_cpu_to_be32(x) ((__force __be32)(__u32)(x))
#define ext2fs_be32_to_cpu(x) ((__force __u32)(__be32)(x))
#define ext2fs_cpu_to_be16(x) ((__force __be16)(__u16)(x))
#define ext2fs_be16_to_cpu(x) ((__force __u16)(__be16)(x))
#else
#define ext2fs_cpu_to_le64(x) ((__force __le64)(__u64)(x))
#define ext2fs_le64_to_cpu(x) ((__force __u64)(__le64)(x))
#define ext2fs_cpu_to_le32(x) ((__force __le32)(__u32)(x))
#define ext2fs_le32_to_cpu(x) ((__force __u32)(__le32)(x))
#define ext2fs_cpu_to_le16(x) ((__force __le16)(__u16)(x))
#define ext2fs_le16_to_cpu(x) ((__force __u16)(__le16)(x))
#define ext2fs_cpu_to_be64(x) ((__force __be64)ext2fs_swab64((__u64)(x)))
#define ext2fs_be64_to_cpu(x) ext2fs_swab64((__force __u64)(__be64)(x))
#define ext2fs_cpu_to_be32(x) ((__force __be32)ext2fs_swab32((__u32)(x)))
#define ext2fs_be32_to_cpu(x) ext2fs_swab32((__force __u32)(__be32)(x))
#define ext2fs_cpu_to_be16(x) ((__force __be16)ext2fs_swab16((__u16)(x)))
#define ext2fs_be16_to_cpu(x) ext2fs_swab16((__force __u16)(__be16)(x))
#endif
/*
* EXT2FS bitmap manipulation routines.
*/
/* Support for sending warning messages from the inline subroutines */
extern const char *ext2fs_block_string;
extern const char *ext2fs_inode_string;
extern const char *ext2fs_mark_string;
extern const char *ext2fs_unmark_string;
extern const char *ext2fs_test_string;
extern void ext2fs_warn_bitmap(errcode_t errcode, unsigned long arg,
const char *description);
extern void ext2fs_warn_bitmap2(ext2fs_generic_bitmap bitmap,
int code, unsigned long arg);
#ifdef NO_INLINE_FUNCS
extern void ext2fs_fast_set_bit(unsigned int nr,void * addr);
extern void ext2fs_fast_clear_bit(unsigned int nr, void * addr);
extern void ext2fs_fast_set_bit64(__u64 nr,void * addr);
extern void ext2fs_fast_clear_bit64(__u64 nr, void * addr);
extern __u16 ext2fs_swab16(__u16 val);
extern __u32 ext2fs_swab32(__u32 val);
extern __u64 ext2fs_swab64(__u64 val);
extern int ext2fs_mark_block_bitmap(ext2fs_block_bitmap bitmap, blk_t block);
extern int ext2fs_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block);
extern int ext2fs_test_block_bitmap(ext2fs_block_bitmap bitmap, blk_t block);
extern int ext2fs_mark_inode_bitmap(ext2fs_inode_bitmap bitmap, ext2_ino_t inode);
extern int ext2fs_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern int ext2fs_test_inode_bitmap(ext2fs_inode_bitmap bitmap, ext2_ino_t inode);
extern void ext2fs_fast_mark_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block);
extern void ext2fs_fast_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block);
extern int ext2fs_fast_test_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block);
extern void ext2fs_fast_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern void ext2fs_fast_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern int ext2fs_fast_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern blk_t ext2fs_get_block_bitmap_start(ext2fs_block_bitmap bitmap);
extern ext2_ino_t ext2fs_get_inode_bitmap_start(ext2fs_inode_bitmap bitmap);
extern blk_t ext2fs_get_block_bitmap_end(ext2fs_block_bitmap bitmap);
extern ext2_ino_t ext2fs_get_inode_bitmap_end(ext2fs_inode_bitmap bitmap);
extern void ext2fs_fast_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num);
extern void ext2fs_fast_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num);
extern int ext2fs_fast_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num);
#endif
/* These functions routines moved to gen_bitmap.c */
extern void ext2fs_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num);
extern void ext2fs_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num);
extern int ext2fs_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num);
extern int ext2fs_test_inode_bitmap_range(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode, int num);
extern int ext2fs_mark_generic_bitmap(ext2fs_generic_bitmap bitmap,
__u32 bitno);
extern int ext2fs_unmark_generic_bitmap(ext2fs_generic_bitmap bitmap,
blk_t bitno);
extern int ext2fs_test_generic_bitmap(ext2fs_generic_bitmap bitmap,
blk_t bitno);
extern int ext2fs_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num);
extern void ext2fs_set_bitmap_padding(ext2fs_generic_bitmap map);
extern __u32 ext2fs_get_generic_bitmap_start(ext2fs_generic_bitmap bitmap);
extern __u32 ext2fs_get_generic_bitmap_end(ext2fs_generic_bitmap bitmap);
/* 64-bit versions */
#ifdef NO_INLINE_FUNCS
extern int ext2fs_mark_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block);
extern int ext2fs_unmark_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block);
extern int ext2fs_test_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block);
extern int ext2fs_mark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern int ext2fs_unmark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern int ext2fs_test_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern void ext2fs_fast_mark_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block);
extern void ext2fs_fast_unmark_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block);
extern int ext2fs_fast_test_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block);
extern void ext2fs_fast_mark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern void ext2fs_fast_unmark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern int ext2fs_fast_test_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode);
extern errcode_t ext2fs_find_first_zero_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t start,
blk64_t end,
blk64_t *out);
extern errcode_t ext2fs_find_first_zero_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t start,
ext2_ino_t end,
ext2_ino_t *out);
extern errcode_t ext2fs_find_first_set_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t start,
blk64_t end,
blk64_t *out);
extern errcode_t ext2fs_find_first_set_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t start,
ext2_ino_t end,
ext2_ino_t *out);
extern blk64_t ext2fs_get_block_bitmap_start2(ext2fs_block_bitmap bitmap);
extern ext2_ino_t ext2fs_get_inode_bitmap_start2(ext2fs_inode_bitmap bitmap);
extern blk64_t ext2fs_get_block_bitmap_end2(ext2fs_block_bitmap bitmap);
extern ext2_ino_t ext2fs_get_inode_bitmap_end2(ext2fs_inode_bitmap bitmap);
extern int ext2fs_fast_test_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block,
unsigned int num);
extern void ext2fs_fast_mark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block,
unsigned int num);
extern void ext2fs_fast_unmark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block,
unsigned int num);
#endif
/* These routines moved to gen_bitmap64.c */
extern void ext2fs_clear_generic_bmap(ext2fs_generic_bitmap bitmap);
extern errcode_t ext2fs_compare_generic_bmap(errcode_t neq,
ext2fs_generic_bitmap bm1,
ext2fs_generic_bitmap bm2);
extern void ext2fs_set_generic_bmap_padding(ext2fs_generic_bitmap bmap);
extern int ext2fs_mark_generic_bmap(ext2fs_generic_bitmap bitmap,
blk64_t bitno);
extern int ext2fs_unmark_generic_bmap(ext2fs_generic_bitmap bitmap,
blk64_t bitno);
extern int ext2fs_test_generic_bmap(ext2fs_generic_bitmap bitmap,
blk64_t bitno);
extern int ext2fs_test_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block, unsigned int num);
extern __u64 ext2fs_get_generic_bmap_start(ext2fs_generic_bitmap bitmap);
extern __u64 ext2fs_get_generic_bmap_end(ext2fs_generic_bitmap bitmap);
extern int ext2fs_test_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block, unsigned int num);
extern void ext2fs_mark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block, unsigned int num);
extern void ext2fs_unmark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block, unsigned int num);
extern errcode_t ext2fs_find_first_zero_generic_bmap(ext2fs_generic_bitmap bitmap,
__u64 start, __u64 end,
__u64 *out);
extern errcode_t ext2fs_find_first_set_generic_bmap(ext2fs_generic_bitmap bitmap,
__u64 start, __u64 end,
__u64 *out);
/*
* The inline routines themselves...
*
* If NO_INLINE_FUNCS is defined, then we won't try to do inline
* functions at all; they will be included as normal functions in
* inline.c
*/
#ifdef NO_INLINE_FUNCS
#if (defined(__GNUC__) && (defined(__i386__) || defined(__i486__) || \
defined(__i586__)))
/* This prevents bitops.c from trying to include the C */
/* function version of these functions */
#define _EXT2_HAVE_ASM_BITOPS_
#endif
#endif /* NO_INLINE_FUNCS */
#if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
#ifdef INCLUDE_INLINE_FUNCS
#if (__STDC_VERSION__ >= 199901L)
#define _INLINE_ extern inline
#else
#define _INLINE_ inline
#endif
#else /* !INCLUDE_INLINE FUNCS */
#if (__STDC_VERSION__ >= 199901L)
#define _INLINE_ inline
#else /* not C99 */
#ifdef __GNUC__
#define _INLINE_ extern __inline__
#else /* For Watcom C */
#define _INLINE_ extern inline
#endif /* __GNUC__ */
#endif /* __STDC_VERSION__ >= 199901L */
#endif /* INCLUDE_INLINE_FUNCS */
/*
* Fast bit set/clear functions that doesn't need to return the
* previous bit value.
*/
_INLINE_ void ext2fs_fast_set_bit(unsigned int nr,void * addr)
{
unsigned char *ADDR = (unsigned char *) addr;
ADDR += nr >> 3;
*ADDR |= (unsigned char) (1 << (nr & 0x07));
}
_INLINE_ void ext2fs_fast_clear_bit(unsigned int nr, void * addr)
{
unsigned char *ADDR = (unsigned char *) addr;
ADDR += nr >> 3;
*ADDR &= (unsigned char) ~(1 << (nr & 0x07));
}
_INLINE_ void ext2fs_fast_set_bit64(__u64 nr, void * addr)
{
unsigned char *ADDR = (unsigned char *) addr;
ADDR += nr >> 3;
*ADDR |= (unsigned char) (1 << (nr & 0x07));
}
_INLINE_ void ext2fs_fast_clear_bit64(__u64 nr, void * addr)
{
unsigned char *ADDR = (unsigned char *) addr;
ADDR += nr >> 3;
*ADDR &= (unsigned char) ~(1 << (nr & 0x07));
}
#if ((defined __GNUC__) && !defined(_EXT2_USE_C_VERSIONS_) && \
(defined(__i386__) || defined(__i486__) || defined(__i586__)))
#define _EXT2_HAVE_ASM_BITOPS_
#define _EXT2_HAVE_ASM_SWAB_
/*
* These are done by inline assembly for speed reasons.....
*
* All bitoperations return 0 if the bit was cleared before the
* operation and != 0 if it was not. Bit 0 is the LSB of addr; bit 32
* is the LSB of (addr+1).
*/
/*
* Some hacks to defeat gcc over-optimizations..
*/
struct __dummy_h { unsigned long a[100]; };
#define EXT2FS_ADDR (*(struct __dummy_h *) addr)
#define EXT2FS_CONST_ADDR (*(const struct __dummy_h *) addr)
_INLINE_ int ext2fs_set_bit(unsigned int nr, void * addr)
{
int oldbit;
addr = (void *) (((unsigned char *) addr) + (nr >> 3));
__asm__ __volatile__("btsl %2,%1\n\tsbbl %0,%0"
:"=r" (oldbit),"+m" (EXT2FS_ADDR)
:"r" (nr & 7));
return oldbit;
}
_INLINE_ int ext2fs_clear_bit(unsigned int nr, void * addr)
{
int oldbit;
addr = (void *) (((unsigned char *) addr) + (nr >> 3));
__asm__ __volatile__("btrl %2,%1\n\tsbbl %0,%0"
:"=r" (oldbit),"+m" (EXT2FS_ADDR)
:"r" (nr & 7));
return oldbit;
}
_INLINE_ int ext2fs_test_bit(unsigned int nr, const void * addr)
{
int oldbit;
addr = (const void *) (((const unsigned char *) addr) + (nr >> 3));
__asm__ __volatile__("btl %2,%1\n\tsbbl %0,%0"
:"=r" (oldbit)
:"m" (EXT2FS_CONST_ADDR),"r" (nr & 7));
return oldbit;
}
_INLINE_ __u32 ext2fs_swab32(__u32 val)
{
#ifdef EXT2FS_REQUIRE_486
__asm__("bswap %0" : "=r" (val) : "0" (val));
#else
__asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */
"rorl $16,%0\n\t" /* swap words */
"xchgb %b0,%h0" /* swap higher bytes */
:"=q" (val)
: "0" (val));
#endif
return val;
}
_INLINE_ __u16 ext2fs_swab16(__u16 val)
{
__asm__("xchgb %b0,%h0" /* swap bytes */ \
: "=q" (val) \
: "0" (val)); \
return val;
}
#undef EXT2FS_ADDR
#endif /* i386 */
#if !defined(_EXT2_HAVE_ASM_SWAB_)
_INLINE_ __u16 ext2fs_swab16(__u16 val)
{
return (val >> 8) | (__u16) (val << 8);
}
_INLINE_ __u32 ext2fs_swab32(__u32 val)
{
return ((val>>24) | ((val>>8)&0xFF00) |
((val<<8)&0xFF0000) | (val<<24));
}
#endif /* !_EXT2_HAVE_ASM_SWAB */
_INLINE_ __u64 ext2fs_swab64(__u64 val)
{
return (ext2fs_swab32((__u32) (val >> 32)) |
(((__u64)ext2fs_swab32(val & 0xFFFFFFFFUL)) << 32));
}
_INLINE_ int ext2fs_mark_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block)
{
return ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
block);
}
_INLINE_ int ext2fs_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block)
{
return ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
block);
}
_INLINE_ int ext2fs_test_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block)
{
return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
block);
}
_INLINE_ int ext2fs_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
return ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
inode);
}
_INLINE_ int ext2fs_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
return ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap,
inode);
}
_INLINE_ int ext2fs_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
inode);
}
_INLINE_ void ext2fs_fast_mark_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block)
{
ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap) bitmap, block);
}
_INLINE_ void ext2fs_fast_unmark_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block)
{
ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap, block);
}
_INLINE_ int ext2fs_fast_test_block_bitmap(ext2fs_block_bitmap bitmap,
blk_t block)
{
return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
block);
}
_INLINE_ void ext2fs_fast_mark_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
ext2fs_mark_generic_bitmap((ext2fs_generic_bitmap) bitmap, inode);
}
_INLINE_ void ext2fs_fast_unmark_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
ext2fs_unmark_generic_bitmap((ext2fs_generic_bitmap) bitmap, inode);
}
_INLINE_ int ext2fs_fast_test_inode_bitmap(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
return ext2fs_test_generic_bitmap((ext2fs_generic_bitmap) bitmap,
inode);
}
_INLINE_ blk_t ext2fs_get_block_bitmap_start(ext2fs_block_bitmap bitmap)
{
return ext2fs_get_generic_bitmap_start((ext2fs_generic_bitmap) bitmap);
}
_INLINE_ ext2_ino_t ext2fs_get_inode_bitmap_start(ext2fs_inode_bitmap bitmap)
{
return ext2fs_get_generic_bitmap_start((ext2fs_generic_bitmap) bitmap);
}
_INLINE_ blk_t ext2fs_get_block_bitmap_end(ext2fs_block_bitmap bitmap)
{
return ext2fs_get_generic_bitmap_end((ext2fs_generic_bitmap) bitmap);
}
_INLINE_ ext2_ino_t ext2fs_get_inode_bitmap_end(ext2fs_inode_bitmap bitmap)
{
return ext2fs_get_generic_bitmap_end((ext2fs_generic_bitmap) bitmap);
}
_INLINE_ int ext2fs_fast_test_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num)
{
return ext2fs_test_block_bitmap_range(bitmap, block, num);
}
_INLINE_ void ext2fs_fast_mark_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num)
{
ext2fs_mark_block_bitmap_range(bitmap, block, num);
}
_INLINE_ void ext2fs_fast_unmark_block_bitmap_range(ext2fs_block_bitmap bitmap,
blk_t block, int num)
{
ext2fs_unmark_block_bitmap_range(bitmap, block, num);
}
/* 64-bit versions */
_INLINE_ int ext2fs_mark_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block)
{
return ext2fs_mark_generic_bmap((ext2fs_generic_bitmap) bitmap,
block);
}
_INLINE_ int ext2fs_unmark_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block)
{
return ext2fs_unmark_generic_bmap((ext2fs_generic_bitmap) bitmap, block);
}
_INLINE_ int ext2fs_test_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block)
{
return ext2fs_test_generic_bmap((ext2fs_generic_bitmap) bitmap,
block);
}
_INLINE_ int ext2fs_mark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
return ext2fs_mark_generic_bmap((ext2fs_generic_bitmap) bitmap,
inode);
}
_INLINE_ int ext2fs_unmark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
return ext2fs_unmark_generic_bmap((ext2fs_generic_bitmap) bitmap,
inode);
}
_INLINE_ int ext2fs_test_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
return ext2fs_test_generic_bmap((ext2fs_generic_bitmap) bitmap,
inode);
}
_INLINE_ void ext2fs_fast_mark_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block)
{
ext2fs_mark_generic_bmap((ext2fs_generic_bitmap) bitmap, block);
}
_INLINE_ void ext2fs_fast_unmark_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block)
{
ext2fs_unmark_generic_bmap((ext2fs_generic_bitmap) bitmap, block);
}
_INLINE_ int ext2fs_fast_test_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t block)
{
return ext2fs_test_generic_bmap((ext2fs_generic_bitmap) bitmap,
block);
}
_INLINE_ void ext2fs_fast_mark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
ext2fs_mark_generic_bmap((ext2fs_generic_bitmap) bitmap, inode);
}
_INLINE_ void ext2fs_fast_unmark_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
ext2fs_unmark_generic_bmap((ext2fs_generic_bitmap) bitmap, inode);
}
_INLINE_ int ext2fs_fast_test_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t inode)
{
return ext2fs_test_generic_bmap((ext2fs_generic_bitmap) bitmap,
inode);
}
_INLINE_ errcode_t ext2fs_find_first_zero_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t start,
blk64_t end,
blk64_t *out)
{
__u64 o;
errcode_t rv;
rv = ext2fs_find_first_zero_generic_bmap((ext2fs_generic_bitmap) bitmap,
start, end, &o);
if (!rv)
*out = o;
return rv;
}
_INLINE_ errcode_t ext2fs_find_first_zero_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t start,
ext2_ino_t end,
ext2_ino_t *out)
{
__u64 o;
errcode_t rv;
rv = ext2fs_find_first_zero_generic_bmap((ext2fs_generic_bitmap) bitmap,
start, end, &o);
if (!rv)
*out = (ext2_ino_t) o;
return rv;
}
_INLINE_ errcode_t ext2fs_find_first_set_block_bitmap2(ext2fs_block_bitmap bitmap,
blk64_t start,
blk64_t end,
blk64_t *out)
{
__u64 o;
errcode_t rv;
rv = ext2fs_find_first_set_generic_bmap((ext2fs_generic_bitmap) bitmap,
start, end, &o);
if (!rv)
*out = o;
return rv;
}
_INLINE_ errcode_t ext2fs_find_first_set_inode_bitmap2(ext2fs_inode_bitmap bitmap,
ext2_ino_t start,
ext2_ino_t end,
ext2_ino_t *out)
{
__u64 o;
errcode_t rv;
rv = ext2fs_find_first_set_generic_bmap((ext2fs_generic_bitmap) bitmap,
start, end, &o);
if (!rv)
*out = (ext2_ino_t) o;
return rv;
}
_INLINE_ blk64_t ext2fs_get_block_bitmap_start2(ext2fs_block_bitmap bitmap)
{
return ext2fs_get_generic_bmap_start((ext2fs_generic_bitmap) bitmap);
}
_INLINE_ ext2_ino_t ext2fs_get_inode_bitmap_start2(ext2fs_inode_bitmap bitmap)
{
return (ext2_ino_t) ext2fs_get_generic_bmap_start((ext2fs_generic_bitmap) bitmap);
}
_INLINE_ blk64_t ext2fs_get_block_bitmap_end2(ext2fs_block_bitmap bitmap)
{
return ext2fs_get_generic_bmap_end((ext2fs_generic_bitmap) bitmap);
}
_INLINE_ ext2_ino_t ext2fs_get_inode_bitmap_end2(ext2fs_inode_bitmap bitmap)
{
return (ext2_ino_t) ext2fs_get_generic_bmap_end((ext2fs_generic_bitmap) bitmap);
}
_INLINE_ int ext2fs_fast_test_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block,
unsigned int num)
{
return ext2fs_test_block_bitmap_range2(bitmap, block, num);
}
_INLINE_ void ext2fs_fast_mark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block,
unsigned int num)
{
ext2fs_mark_block_bitmap_range2(bitmap, block, num);
}
_INLINE_ void ext2fs_fast_unmark_block_bitmap_range2(ext2fs_block_bitmap bitmap,
blk64_t block,
unsigned int num)
{
ext2fs_unmark_block_bitmap_range2(bitmap, block, num);
}
#undef _INLINE_
#endif
#ifndef _EXT2_HAVE_ASM_BITOPS_
extern int ext2fs_set_bit(unsigned int nr,void * addr);
extern int ext2fs_clear_bit(unsigned int nr, void * addr);
extern int ext2fs_test_bit(unsigned int nr, const void * addr);
#endif
extern int ext2fs_set_bit64(__u64 nr,void * addr);
extern int ext2fs_clear_bit64(__u64 nr, void * addr);
extern int ext2fs_test_bit64(__u64 nr, const void * addr);
extern unsigned int ext2fs_bitcount(const void *addr, unsigned int nbytes);
PK 2 �Z[�r�� � hashmap.hnu �[��� #ifndef HASHMAP_H
# define HASHMAP_H
# include <stdlib.h>
# include <stdint.h>
#ifndef __GNUC_PREREQ
#if defined(__GNUC__) && defined(__GNUC_MINOR__)
#define __GNUC_PREREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
#define __GNUC_PREREQ(maj, min) 0
#endif
#endif
struct ext2fs_hashmap {
uint32_t size;
uint32_t(*hash)(const void *key, size_t len);
void(*free)(void*);
struct ext2fs_hashmap_entry *first;
struct ext2fs_hashmap_entry *last;
struct ext2fs_hashmap_entry {
void *data;
const void *key;
size_t key_len;
struct ext2fs_hashmap_entry *next;
struct ext2fs_hashmap_entry *list_next;
struct ext2fs_hashmap_entry *list_prev;
#if __GNUC_PREREQ (4, 8)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
} *entries[0];
#if __GNUC_PREREQ (4, 8)
#pragma GCC diagnostic pop
#endif
};
struct ext2fs_hashmap *ext2fs_hashmap_create(
uint32_t(*hash_fct)(const void*, size_t),
void(*free_fct)(void*), size_t size);
void ext2fs_hashmap_add(struct ext2fs_hashmap *h, void *data, const void *key,
size_t key_len);
void *ext2fs_hashmap_lookup(struct ext2fs_hashmap *h, const void *key,
size_t key_len);
void *ext2fs_hashmap_iter_in_order(struct ext2fs_hashmap *h,
struct ext2fs_hashmap_entry **it);
void ext2fs_hashmap_del(struct ext2fs_hashmap *h,
struct ext2fs_hashmap_entry *e);
void ext2fs_hashmap_free(struct ext2fs_hashmap *h);
uint32_t ext2fs_djb2_hash(const void *str, size_t size);
#endif /* !HASHMAP_H */
PK 2 �Z@���" �" tdb.hnu �[��� #ifndef __TDB_H__
#define __TDB_H__
/*
Unix SMB/CIFS implementation.
trivial database library
Copyright (C) Andrew Tridgell 1999-2004
** NOTE! The following LGPL license applies to the tdb
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef __cplusplus
extern "C" {
#endif
/* flags to tdb_store() */
#define TDB_REPLACE 1
#define TDB_INSERT 2
#define TDB_MODIFY 3
/* flags for tdb_open() */
#define TDB_DEFAULT 0 /* just a readability place holder */
#define TDB_CLEAR_IF_FIRST 1
#define TDB_INTERNAL 2 /* don't store on disk */
#define TDB_NOLOCK 4 /* don't do any locking */
#define TDB_NOMMAP 8 /* don't use mmap */
#define TDB_CONVERT 16 /* convert endian (internal use) */
#define TDB_BIGENDIAN 32 /* header is big-endian (internal use) */
#define TDB_NOSYNC 64 /* don't use synchronous transactions */
#define TDB_SEQNUM 128 /* maintain a sequence number */
#define TDB_ERRCODE(code, ret) ((tdb->ecode = (code)), ret)
/* error codes */
enum TDB_ERROR {TDB_SUCCESS=0, TDB_ERR_CORRUPT, TDB_ERR_IO, TDB_ERR_LOCK,
TDB_ERR_OOM, TDB_ERR_EXISTS, TDB_ERR_NOLOCK, TDB_ERR_LOCK_TIMEOUT,
TDB_ERR_NOEXIST, TDB_ERR_EINVAL, TDB_ERR_RDONLY};
/* debugging uses one of the following levels */
enum tdb_debug_level {TDB_DEBUG_FATAL = 0, TDB_DEBUG_ERROR,
TDB_DEBUG_WARNING, TDB_DEBUG_TRACE};
typedef struct TDB_DATA {
unsigned char *dptr;
size_t dsize;
} TDB_DATA;
#ifndef PRINTF_ATTRIBUTE
#if (__GNUC__ >= 3)
/** Use gcc attribute to check printf fns. a1 is the 1-based index of
* the parameter containing the format, and a2 the index of the first
* argument. Note that some gcc 2.x versions don't handle this
* properly **/
#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
#else
#define PRINTF_ATTRIBUTE(a1, a2)
#endif
#endif
/* ext2fs tdb renames */
#define tdb_open ext2fs_tdb_open
#define tdb_open_ex ext2fs_tdb_open_ex
#define tdb_set_max_dead ext2fs_tdb_set_max_dead
#define tdb_reopen ext2fs_tdb_reopen
#define tdb_reopen_all ext2fs_tdb_reopen_all
#define tdb_set_logging_function ext2fs_tdb_set_logging_function
#define tdb_error ext2fs_tdb_error
#define tdb_errorstr ext2fs_tdb_errorstr
#define tdb_fetch ext2fs_tdb_fetch
#define tdb_parse_record ext2fs_tdb_parse_record
#define tdb_delete ext2fs_tdb_delete
#define tdb_store ext2fs_tdb_store
#define tdb_append ext2fs_tdb_append
#define tdb_close ext2fs_tdb_close
#define tdb_firstkey ext2fs_tdb_firstkey
#define tdb_nextkey ext2fs_tdb_nextkey
#define tdb_traverse ext2fs_tdb_traverse
#define tdb_traverse_read ext2fs_tdb_traverse_read
#define tdb_exists ext2fs_tdb_exists
#define tdb_lockall ext2fs_tdb_lockall
#define tdb_unlockall ext2fs_tdb_unlockall
#define tdb_lockall_read ext2fs_tdb_lockall_read
#define tdb_unlockall_read ext2fs_tdb_unlockall_read
#define tdb_name ext2fs_tdb_name
#define tdb_fd ext2fs_tdb_fd
#define tdb_log_fn ext2fs_tdb_log_fn
#define tdb_get_logging_private ext2fs_tdb_get_logging_private
#define tdb_transaction_start ext2fs_tdb_transaction_start
#define tdb_transaction_commit ext2fs_tdb_transaction_commit
#define tdb_transaction_cancel ext2fs_tdb_transaction_cancel
#define tdb_transaction_recover ext2fs_tdb_transaction_recover
#define tdb_get_seqnum ext2fs_tdb_get_seqnum
#define tdb_hash_size ext2fs_tdb_hash_size
#define tdb_map_size ext2fs_tdb_map_size
#define tdb_get_flags ext2fs_tdb_get_flags
#define tdb_chainlock ext2fs_tdb_chainlock
#define tdb_chainunlock ext2fs_tdb_chainunlock
#define tdb_chainlock_read ext2fs_tdb_chainlock_read
#define tdb_chainunlock_read ext2fs_tdb_chainunlock_read
#define tdb_dump_all ext2fs_tdb_dump_all
#define tdb_printfreelist ext2fs_tdb_printfreelist
#define tdb_validate_freelist ext2fs_tdb_validate_freelist
#define tdb_chainlock_mark ext2fs_tdb_chainlock_mark
#define tdb_chainlock_nonblock ext2fs_tdb_chainlock_nonblock
#define tdb_chainlock_unmark ext2fs_tdb_chainlock_unmark
#define tdb_enable_seqnum ext2fs_tdb_enable_seqnum
#define tdb_increment_seqnum_nonblock ext2fs_tdb_increment_seqnum_nonblock
#define tdb_lock_nonblock ext2fs_tdb_lock_nonblock
#define tdb_lockall_mark ext2fs_tdb_lockall_mark
#define tdb_lockall_nonblock ext2fs_tdb_lockall_nonblock
#define tdb_lockall_read_nonblock ext2fs_tdb_lockall_read_nonblock
#define tdb_lockall_unmark ext2fs_tdb_lockall_unmark
#define tdb_flush ext2fs_tdb_flush
/* this is the context structure that is returned from a db open */
typedef struct tdb_context TDB_CONTEXT;
typedef int (*tdb_traverse_func)(struct tdb_context *, TDB_DATA, TDB_DATA, void *);
typedef void (*tdb_log_func)(struct tdb_context *, enum tdb_debug_level, const char *, ...) PRINTF_ATTRIBUTE(3, 4);
typedef unsigned int (*tdb_hash_func)(TDB_DATA *key);
struct tdb_logging_context {
tdb_log_func log_fn;
void *log_private;
};
struct tdb_context *tdb_open(const char *name, int hash_size, int tdb_flags,
int open_flags, mode_t mode);
struct tdb_context *tdb_open_ex(const char *name, int hash_size, int tdb_flags,
int open_flags, mode_t mode,
const struct tdb_logging_context *log_ctx,
tdb_hash_func hash_fn);
void tdb_set_max_dead(struct tdb_context *tdb, int max_dead);
int tdb_reopen(struct tdb_context *tdb);
int tdb_reopen_all(int parent_longlived);
void tdb_set_logging_function(struct tdb_context *tdb, const struct tdb_logging_context *log_ctx);
enum TDB_ERROR tdb_error(struct tdb_context *tdb);
const char *tdb_errorstr(struct tdb_context *tdb);
TDB_DATA tdb_fetch(struct tdb_context *tdb, TDB_DATA key);
int tdb_parse_record(struct tdb_context *tdb, TDB_DATA key,
int (*parser)(TDB_DATA key, TDB_DATA data,
void *private_data),
void *private_data);
int tdb_delete(struct tdb_context *tdb, TDB_DATA key);
int tdb_store(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf, int flag);
int tdb_append(struct tdb_context *tdb, TDB_DATA key, TDB_DATA new_dbuf);
int tdb_close(struct tdb_context *tdb);
TDB_DATA tdb_firstkey(struct tdb_context *tdb);
TDB_DATA tdb_nextkey(struct tdb_context *tdb, TDB_DATA key);
int tdb_traverse(struct tdb_context *tdb, tdb_traverse_func fn, void *);
int tdb_traverse_read(struct tdb_context *tdb, tdb_traverse_func fn, void *);
int tdb_exists(struct tdb_context *tdb, TDB_DATA key);
int tdb_lockall(struct tdb_context *tdb);
int tdb_lockall_nonblock(struct tdb_context *tdb);
int tdb_unlockall(struct tdb_context *tdb);
int tdb_lockall_read(struct tdb_context *tdb);
int tdb_lockall_read_nonblock(struct tdb_context *tdb);
int tdb_unlockall_read(struct tdb_context *tdb);
int tdb_lockall_mark(struct tdb_context *tdb);
int tdb_lockall_unmark(struct tdb_context *tdb);
const char *tdb_name(struct tdb_context *tdb);
int tdb_fd(struct tdb_context *tdb);
tdb_log_func tdb_log_fn(struct tdb_context *tdb);
void *tdb_get_logging_private(struct tdb_context *tdb);
int tdb_transaction_start(struct tdb_context *tdb);
int tdb_transaction_commit(struct tdb_context *tdb);
int tdb_transaction_cancel(struct tdb_context *tdb);
int tdb_transaction_recover(struct tdb_context *tdb);
int tdb_get_seqnum(struct tdb_context *tdb);
int tdb_hash_size(struct tdb_context *tdb);
size_t tdb_map_size(struct tdb_context *tdb);
int tdb_get_flags(struct tdb_context *tdb);
void tdb_enable_seqnum(struct tdb_context *tdb);
void tdb_increment_seqnum_nonblock(struct tdb_context *tdb);
int tdb_flush(struct tdb_context *tdb);
/* Low level locking functions: use with care */
int tdb_chainlock(struct tdb_context *tdb, TDB_DATA key);
int tdb_chainlock_nonblock(struct tdb_context *tdb, TDB_DATA key);
int tdb_chainunlock(struct tdb_context *tdb, TDB_DATA key);
int tdb_chainlock_read(struct tdb_context *tdb, TDB_DATA key);
int tdb_chainunlock_read(struct tdb_context *tdb, TDB_DATA key);
int tdb_chainlock_mark(struct tdb_context *tdb, TDB_DATA key);
int tdb_chainlock_unmark(struct tdb_context *tdb, TDB_DATA key);
/* Debug functions. Not used in production. */
void tdb_dump_all(struct tdb_context *tdb);
int tdb_printfreelist(struct tdb_context *tdb);
int tdb_validate_freelist(struct tdb_context *tdb, int *pnum_entries);
#ifdef __cplusplus
}
#endif
#endif /* tdb.h */
PK 2 �Z�S@[� [� ext2_fs.hnu �[��� /*
* 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 _LINUX_EXT2_FS_H
#define _LINUX_EXT2_FS_H
#include <ext2fs/ext2_types.h> /* Changed from linux/types.h */
#ifndef __GNUC_PREREQ
#if defined(__GNUC__) && defined(__GNUC_MINOR__)
#define __GNUC_PREREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
#define __GNUC_PREREQ(maj, min) 0
#endif
#endif
/*
* 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+group_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 EXT4_BG_INODE_BITMAP_CSUM_HI_END \
(offsetof(struct ext4_group_desc, bg_inode_bitmap_csum_hi) + \
sizeof(__u16))
#define EXT4_BG_BLOCK_BITMAP_CSUM_HI_LOCATION \
(offsetof(struct ext4_group_desc, bg_block_bitmap_csum_hi) + \
sizeof(__u16))
#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
#define EXT4_DX_BLOCK_MASK 0x0fffffff
struct ext2_dx_entry {
__le32 hash;
__le32 block;
};
struct ext2_dx_countlimit {
__le16 limit;
__le16 count;
};
/*
* This goes at the end of each htree block.
*/
struct ext2_dx_tail {
__le32 dt_reserved;
__le32 dt_checksum; /* crc32c(uuid+inum+dxblock) */
};
/*
* 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
#define EXT2_GROUPS_TO_BLOCKS(s, g) ((blk64_t) EXT2_BLOCKS_PER_GROUP(s) * \
(g))
#define EXT2_GROUPS_TO_CLUSTERS(s, g) ((blk64_t) EXT2_CLUSTERS_PER_GROUP(s) * \
(g))
/*
* 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 */
/* nb: was previously EXT2_ECOMPR_FL */
#define EXT4_ENCRYPT_FL 0x00000800 /* encrypted inode */
/* 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_VERITY_FL 0x00100000 /* Verity protected inode */
#define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
/* EXT4_EOFBLOCKS_FL 0x00400000 was here */
#define FS_NOCOW_FL 0x00800000 /* Do not cow file */
#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 EXT4_INLINE_DATA_FL 0x10000000 /* Inode has inline data */
#define EXT4_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
#define EXT4_CASEFOLD_FL 0x40000000 /* Casefolded file */
#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
#define EXT2_FL_USER_VISIBLE 0x604BDFFF /* User visible flags */
#define EXT2_FL_USER_MODIFIABLE 0x604B80FF /* 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 {
/*00*/ __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 */
/*10*/ __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 */
/*20*/ __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 */
/*28*/ __u32 i_block[EXT2_N_BLOCKS];/* Pointers to blocks */
/*64*/ __u32 i_generation; /* File version (for NFS) */
__u32 i_file_acl; /* File ACL */
__u32 i_size_high;
/*70*/ __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 {
/*00*/ __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 */
/*10*/ __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 */
/*20*/ __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 */
/*28*/ __u32 i_block[EXT2_N_BLOCKS];/* Pointers to blocks */
/*64*/ __u32 i_generation; /* File version (for NFS) */
__u32 i_file_acl; /* File ACL */
__u32 i_size_high;
/*70*/ __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 */
/*80*/ __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) */
/*90*/ __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 */
/*9c*/ __u32 i_projid; /* Project ID */
};
#define EXT4_INODE_CSUM_HI_EXTRA_END \
(offsetof(struct ext2_inode_large, i_checksum_hi) + sizeof(__u16) - \
EXT2_GOOD_OLD_INODE_SIZE)
#define EXT4_EPOCH_BITS 2
#define EXT4_EPOCH_MASK ((1 << EXT4_EPOCH_BITS) - 1)
#define i_checksum_lo osd2.linux2.l_i_checksum_lo
#define inode_includes(size, field) \
(size >= (sizeof(((struct ext2_inode_large *)0)->field) + \
offsetof(struct ext2_inode_large, field)))
#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 inode_projid(inode) ((inode).i_projid)
#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))
static inline
struct ext2_inode *EXT2_INODE(struct ext2_inode_large *large_inode)
{
return (struct ext2_inode *) large_inode;
}
/*
* 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
/* Metadata checksum algorithms */
#define EXT2_CRC32C_CHKSUM 1
/* Encryption algorithms, key size and key reference len */
#define EXT4_ENCRYPTION_MODE_INVALID 0
#define EXT4_ENCRYPTION_MODE_AES_256_XTS 1
#define EXT4_ENCRYPTION_MODE_AES_256_GCM 2
#define EXT4_ENCRYPTION_MODE_AES_256_CBC 3
#define EXT4_ENCRYPTION_MODE_AES_256_CTS 4
#define EXT4_AES_256_XTS_KEY_SIZE 64
#define EXT4_AES_256_GCM_KEY_SIZE 32
#define EXT4_AES_256_CBC_KEY_SIZE 32
#define EXT4_AES_256_CTS_KEY_SIZE 32
#define EXT4_MAX_KEY_SIZE 64
#define EXT4_KEY_DESCRIPTOR_SIZE 8
#define EXT4_CRYPTO_BLOCK_SIZE 16
/* Password derivation constants */
#define EXT4_MAX_PASSPHRASE_SIZE 1024
#define EXT4_MAX_SALT_SIZE 256
#define EXT4_PBKDF2_ITERATIONS 0xFFFF
#define EXT2_LABEL_LEN 16
/*
* Policy provided via an ioctl on the topmost directory. This
* structure is also in the kernel.
*/
struct ext4_encryption_policy {
char version;
char contents_encryption_mode;
char filenames_encryption_mode;
char flags;
char master_key_descriptor[EXT4_KEY_DESCRIPTOR_SIZE];
} __attribute__((__packed__));
struct ext4_encryption_key {
__u32 mode;
char raw[EXT4_MAX_KEY_SIZE];
__u32 size;
} __attribute__((__packed__));
/*
* Structure of the super block
*/
struct ext2_super_block {
/*000*/ __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 */
/*010*/ __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 */
/*020*/ __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 */
/*030*/ __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 */
/*040*/ __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 */
/*050*/ __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 */
/*060*/ __u32 s_feature_incompat; /* incompatible feature set */
__u32 s_feature_ro_compat; /* readonly-compatible feature set */
/*068*/ __u8 s_uuid[16]; /* 128-bit uuid for volume */
/*078*/ __u8 s_volume_name[EXT2_LABEL_LEN]; /* volume name, no NUL? */
/*088*/ __u8 s_last_mounted[64]; /* directory last mounted on, no NUL? */
/*0c8*/ __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.
*/
/*0d0*/ __u8 s_journal_uuid[16]; /* uuid of journal superblock */
/*0e0*/ __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 */
/*0ec*/ __u32 s_hash_seed[4]; /* HTREE hash seed */
/*0fc*/ __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 */
/*100*/ __u32 s_default_mount_opts; /* default EXT2_MOUNT_* flags used */
__u32 s_first_meta_bg; /* First metablock group */
__u32 s_mkfs_time; /* When the filesystem was created */
/*10c*/ __u32 s_jnl_blocks[17]; /* Backup of the journal inode */
/*150*/ __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 */
/*160*/ __u32 s_flags; /* Miscellaneous flags */
__u16 s_raid_stride; /* RAID stride in blocks */
__u16 s_mmp_update_interval; /* # seconds to wait in MMP checking */
__u64 s_mmp_block; /* Block for multi-mount protection */
/*170*/ __u32 s_raid_stripe_width; /* blocks on all data disks (N*stride)*/
__u8 s_log_groups_per_flex; /* FLEX_BG group size */
__u8 s_checksum_type; /* metadata checksum algorithm */
__u8 s_encryption_level; /* versioning level for encryption */
__u8 s_reserved_pad; /* Padding to next 32bits */
__u64 s_kbytes_written; /* nr of lifetime kilobytes written */
/*180*/ __u32 s_snapshot_inum; /* Inode number of active snapshot */
__u32 s_snapshot_id; /* sequential ID of active snapshot */
__u64 s_snapshot_r_blocks_count; /* active snapshot reserved blocks */
/*190*/ __u32 s_snapshot_list; /* inode number of 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 */
/*1a0*/ __u64 s_first_error_block; /* block involved in first error */
__u8 s_first_error_func[32]; /* function where error hit, no NUL? */
/*1c8*/ __u32 s_first_error_line; /* line number where error happened */
__u32 s_last_error_time; /* most recent time of an error */
/*1d0*/ __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 */
/*1e0*/ __u8 s_last_error_func[32]; /* function where error hit, no NUL? */
#define EXT4_S_ERR_END ext4_offsetof(struct ext2_super_block, s_mount_opts)
/*200*/ __u8 s_mount_opts[64]; /* default mount options, no NUL? */
/*240*/ __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 */
/*24c*/ __u32 s_backup_bgs[2]; /* If sparse_super2 enabled */
/*254*/ __u8 s_encrypt_algos[4]; /* Encryption algorithms in use */
/*258*/ __u8 s_encrypt_pw_salt[16]; /* Salt used for string2key algorithm */
/*268*/ __le32 s_lpf_ino; /* Location of the lost+found inode */
__le32 s_prj_quota_inum; /* inode for tracking project quota */
/*270*/ __le32 s_checksum_seed; /* crc32c(orig_uuid) if csum_seed set */
/*274*/ __u8 s_wtime_hi;
__u8 s_mtime_hi;
__u8 s_mkfs_time_hi;
__u8 s_lastcheck_hi;
__u8 s_first_error_time_hi;
__u8 s_last_error_time_hi;
__u8 s_pad[2];
/*27c*/ __le16 s_encoding; /* Filename charset encoding */
__le16 s_encoding_flags; /* Filename charset encoding flags */
__le32 s_reserved[95]; /* Padding to the end of the block */
/*3fc*/ __u32 s_checksum; /* crc32c(superblock) */
};
#define EXT4_S_ERR_LEN (EXT4_S_ERR_END - EXT4_S_ERR_START)
#define EXT2_LEN_STR(buf) (int)sizeof(buf), (char *)buf
/*
* 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 EXT4_FEATURE_COMPAT_SPARSE_SUPER2 0x0200
#define EXT4_FEATURE_COMPAT_FAST_COMMIT 0x0400
#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
/*
* METADATA_CSUM implies GDT_CSUM. When METADATA_CSUM is set, group
* descriptor checksums use the same algorithm as all other data
* structures' checksums.
*/
#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
#define EXT4_FEATURE_RO_COMPAT_REPLICA 0x0800
#define EXT4_FEATURE_RO_COMPAT_READONLY 0x1000
#define EXT4_FEATURE_RO_COMPAT_PROJECT 0x2000 /* Project quota */
#define EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS 0x4000
#define EXT4_FEATURE_RO_COMPAT_VERITY 0x8000
#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 EXT4_FEATURE_INCOMPAT_CSUM_SEED 0x2000
#define EXT4_FEATURE_INCOMPAT_LARGEDIR 0x4000 /* >2GB or 3-lvl htree */
#define EXT4_FEATURE_INCOMPAT_INLINE_DATA 0x8000 /* data in inode */
#define EXT4_FEATURE_INCOMPAT_ENCRYPT 0x10000
#define EXT4_FEATURE_INCOMPAT_CASEFOLD 0x20000
#define EXT4_FEATURE_COMPAT_FUNCS(name, ver, flagname) \
static inline int ext2fs_has_feature_##name(struct ext2_super_block *sb) \
{ \
return ((EXT2_SB(sb)->s_feature_compat & \
EXT##ver##_FEATURE_COMPAT_##flagname) != 0); \
} \
static inline void ext2fs_set_feature_##name(struct ext2_super_block *sb) \
{ \
EXT2_SB(sb)->s_feature_compat |= \
EXT##ver##_FEATURE_COMPAT_##flagname; \
} \
static inline void ext2fs_clear_feature_##name(struct ext2_super_block *sb) \
{ \
EXT2_SB(sb)->s_feature_compat &= \
~EXT##ver##_FEATURE_COMPAT_##flagname; \
}
#define EXT4_FEATURE_RO_COMPAT_FUNCS(name, ver, flagname) \
static inline int ext2fs_has_feature_##name(struct ext2_super_block *sb) \
{ \
return ((EXT2_SB(sb)->s_feature_ro_compat & \
EXT##ver##_FEATURE_RO_COMPAT_##flagname) != 0); \
} \
static inline void ext2fs_set_feature_##name(struct ext2_super_block *sb) \
{ \
EXT2_SB(sb)->s_feature_ro_compat |= \
EXT##ver##_FEATURE_RO_COMPAT_##flagname; \
} \
static inline void ext2fs_clear_feature_##name(struct ext2_super_block *sb) \
{ \
EXT2_SB(sb)->s_feature_ro_compat &= \
~EXT##ver##_FEATURE_RO_COMPAT_##flagname; \
}
#define EXT4_FEATURE_INCOMPAT_FUNCS(name, ver, flagname) \
static inline int ext2fs_has_feature_##name(struct ext2_super_block *sb) \
{ \
return ((EXT2_SB(sb)->s_feature_incompat & \
EXT##ver##_FEATURE_INCOMPAT_##flagname) != 0); \
} \
static inline void ext2fs_set_feature_##name(struct ext2_super_block *sb) \
{ \
EXT2_SB(sb)->s_feature_incompat |= \
EXT##ver##_FEATURE_INCOMPAT_##flagname; \
} \
static inline void ext2fs_clear_feature_##name(struct ext2_super_block *sb) \
{ \
EXT2_SB(sb)->s_feature_incompat &= \
~EXT##ver##_FEATURE_INCOMPAT_##flagname; \
}
EXT4_FEATURE_COMPAT_FUNCS(dir_prealloc, 2, DIR_PREALLOC)
EXT4_FEATURE_COMPAT_FUNCS(imagic_inodes, 2, IMAGIC_INODES)
EXT4_FEATURE_COMPAT_FUNCS(journal, 3, HAS_JOURNAL)
EXT4_FEATURE_COMPAT_FUNCS(xattr, 2, EXT_ATTR)
EXT4_FEATURE_COMPAT_FUNCS(resize_inode, 2, RESIZE_INODE)
EXT4_FEATURE_COMPAT_FUNCS(dir_index, 2, DIR_INDEX)
EXT4_FEATURE_COMPAT_FUNCS(lazy_bg, 2, LAZY_BG)
EXT4_FEATURE_COMPAT_FUNCS(exclude_bitmap, 2, EXCLUDE_BITMAP)
EXT4_FEATURE_COMPAT_FUNCS(sparse_super2, 4, SPARSE_SUPER2)
EXT4_FEATURE_COMPAT_FUNCS(fast_commit, 4, FAST_COMMIT)
EXT4_FEATURE_RO_COMPAT_FUNCS(sparse_super, 2, SPARSE_SUPER)
EXT4_FEATURE_RO_COMPAT_FUNCS(large_file, 2, LARGE_FILE)
EXT4_FEATURE_RO_COMPAT_FUNCS(huge_file, 4, HUGE_FILE)
EXT4_FEATURE_RO_COMPAT_FUNCS(gdt_csum, 4, GDT_CSUM)
EXT4_FEATURE_RO_COMPAT_FUNCS(dir_nlink, 4, DIR_NLINK)
EXT4_FEATURE_RO_COMPAT_FUNCS(extra_isize, 4, EXTRA_ISIZE)
EXT4_FEATURE_RO_COMPAT_FUNCS(has_snapshot, 4, HAS_SNAPSHOT)
EXT4_FEATURE_RO_COMPAT_FUNCS(quota, 4, QUOTA)
EXT4_FEATURE_RO_COMPAT_FUNCS(bigalloc, 4, BIGALLOC)
EXT4_FEATURE_RO_COMPAT_FUNCS(metadata_csum, 4, METADATA_CSUM)
EXT4_FEATURE_RO_COMPAT_FUNCS(replica, 4, REPLICA)
EXT4_FEATURE_RO_COMPAT_FUNCS(readonly, 4, READONLY)
EXT4_FEATURE_RO_COMPAT_FUNCS(project, 4, PROJECT)
EXT4_FEATURE_RO_COMPAT_FUNCS(shared_blocks, 4, SHARED_BLOCKS)
EXT4_FEATURE_RO_COMPAT_FUNCS(verity, 4, VERITY)
EXT4_FEATURE_INCOMPAT_FUNCS(compression, 2, COMPRESSION)
EXT4_FEATURE_INCOMPAT_FUNCS(filetype, 2, FILETYPE)
EXT4_FEATURE_INCOMPAT_FUNCS(journal_needs_recovery, 3, RECOVER)
EXT4_FEATURE_INCOMPAT_FUNCS(journal_dev, 3, JOURNAL_DEV)
EXT4_FEATURE_INCOMPAT_FUNCS(meta_bg, 2, META_BG)
EXT4_FEATURE_INCOMPAT_FUNCS(extents, 3, EXTENTS)
EXT4_FEATURE_INCOMPAT_FUNCS(64bit, 4, 64BIT)
EXT4_FEATURE_INCOMPAT_FUNCS(mmp, 4, MMP)
EXT4_FEATURE_INCOMPAT_FUNCS(flex_bg, 4, FLEX_BG)
EXT4_FEATURE_INCOMPAT_FUNCS(ea_inode, 4, EA_INODE)
EXT4_FEATURE_INCOMPAT_FUNCS(dirdata, 4, DIRDATA)
EXT4_FEATURE_INCOMPAT_FUNCS(csum_seed, 4, CSUM_SEED)
EXT4_FEATURE_INCOMPAT_FUNCS(largedir, 4, LARGEDIR)
EXT4_FEATURE_INCOMPAT_FUNCS(inline_data, 4, INLINE_DATA)
EXT4_FEATURE_INCOMPAT_FUNCS(encrypt, 4, ENCRYPT)
EXT4_FEATURE_INCOMPAT_FUNCS(casefold, 4, CASEFOLD)
#define EXT2_FEATURE_COMPAT_SUPP 0
#define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| \
EXT4_FEATURE_INCOMPAT_MMP| \
EXT4_FEATURE_INCOMPAT_LARGEDIR| \
EXT4_FEATURE_INCOMPAT_EA_INODE)
#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| \
EXT4_FEATURE_RO_COMPAT_VERITY)
/*
* 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.
*
* This structure is deprecated due to endian issues. Please use struct
* ext2_dir_entry and accessor functions
* ext2fs_dirent_name_len
* ext2fs_dirent_set_name_len
* ext2fs_dirent_file_type
* ext2fs_dirent_set_file_type
* to get and set name_len and file_type fields.
*/
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 */
};
/*
* This is a bogus directory entry at the end of each leaf block that
* records checksums.
*/
struct ext2_dir_entry_tail {
__u32 det_reserved_zero1; /* Pretend to be unused */
__u16 det_rec_len; /* 12 */
__u16 det_reserved_name_len; /* 0xDE00, fake namelen/filetype */
__u32 det_checksum; /* crc32c(uuid+inode+dirent) */
};
/*
* 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
/*
* Annoyingly, e2fsprogs always swab16s ext2_dir_entry.name_len, so we
* have to build ext2_dir_entry_tail with that assumption too. This
* constant helps to build the dir_entry_tail to look like it has an
* "invalid" file type.
*/
#define EXT2_DIR_NAME_LEN_CSUM 0xDE00
/*
* EXT2_DIR_PAD defines the directory entries boundaries
*
* NOTE: It must be a multiple of 4
*/
#define EXT2_DIR_ENTRY_HEADER_LEN 8
#define EXT2_DIR_PAD 4
#define EXT2_DIR_ROUND (EXT2_DIR_PAD - 1)
#define EXT2_DIR_REC_LEN(name_len) (((name_len) + \
EXT2_DIR_ENTRY_HEADER_LEN + \
EXT2_DIR_ROUND) & \
~EXT2_DIR_ROUND)
/*
* Constants for ext4's extended time encoding
*/
#define EXT4_EPOCH_BITS 2
#define EXT4_EPOCH_MASK ((1 << EXT4_EPOCH_BITS) - 1)
#define EXT4_NSEC_MASK (~0UL << EXT4_EPOCH_BITS)
/*
* 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
* arbitrary 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 */
/* Not endian-annotated; it's swapped at read/write time */
struct mmp_struct {
__u32 mmp_magic; /* Magic number for MMP */
__u32 mmp_seq; /* Sequence no. updated periodically */
__u64 mmp_time; /* Time last updated (seconds) */
__u8 mmp_nodename[64]; /* Node updating MMP block, no NUL? */
__u8 mmp_bdevname[32]; /* Bdev updating MMP block, no NUL? */
__u16 mmp_check_interval; /* Changed mmp_check_interval */
__u16 mmp_pad1;
__u32 mmp_pad2[226];
__u32 mmp_checksum; /* crc32c(uuid+mmp_block) */
};
/*
* 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
/*
* Minimum size of inline data.
*/
#define EXT4_MIN_INLINE_DATA_SIZE ((sizeof(__u32) * EXT2_N_BLOCKS))
/*
* Size of a parent inode in inline data directory.
*/
#define EXT4_INLINE_DATA_DOTDOT_SIZE (4)
#define EXT4_ENC_UTF8_12_1 1
#define EXT4_ENC_STRICT_MODE_FL (1 << 0) /* Reject invalid sequences */
#endif /* _LINUX_EXT2_FS_H */
PK 2 �Z��a�� � ext2_types.hnu �[��� /*
* Kluge to support multilib installation of both 32- and 64-bit RPMS:
* we need to arrange that header files that appear in both RPMs are
* identical. Hence, this file is architecture-independent and calls
* in an arch-dependent file that will appear in just one RPM.
*
* To avoid breaking arches not explicitly supported by Red Hat, we
* use this indirection file *only* on known multilib arches.
*
* We pay attention to include _only_ the original multilib-unclean
* header file. Including any other system-header file could cause
* unpredictable include-ordering issues (rhbz#1412274, comment #16).
*
* Note: this may well fail if user tries to use gcc's -I- option.
* But that option is deprecated anyway.
*/
#if defined(__x86_64__)
#include "ext2_types-x86_64.h"
#elif defined(__i386__)
#include "ext2_types-i386.h"
#elif defined(__ppc64__) || defined(__powerpc64__)
#include "ext2_types-ppc64.h"
#elif defined(__ppc__) || defined(__powerpc__)
#include "ext2_types-ppc.h"
#elif defined(__s390x__)
#include "ext2_types-s390x.h"
#elif defined(__s390__)
#include "ext2_types-s390.h"
#elif defined(__sparc__) && defined(__arch64__)
#include "ext2_types-sparc64.h"
#elif defined(__sparc__)
#include "ext2_types-sparc.h"
#endif
PK 2 �Z�gK�T
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ext2_ext_attr.hnu �[��� /*
File: linux/ext2_ext_attr.h
On-disk format of extended attributes for the ext2 filesystem.
(C) 2000 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
#ifndef _EXT2_EXT_ATTR_H
#define _EXT2_EXT_ATTR_H
/* Magic value in attribute blocks */
#define EXT2_EXT_ATTR_MAGIC_v1 0xEA010000
#define EXT2_EXT_ATTR_MAGIC 0xEA020000
/* Maximum number of references to one attribute block */
#define EXT2_EXT_ATTR_REFCOUNT_MAX 1024
struct ext2_ext_attr_header {
__u32 h_magic; /* magic number for identification */
__u32 h_refcount; /* reference count */
__u32 h_blocks; /* number of disk blocks used */
__u32 h_hash; /* hash value of all attributes */
__u32 h_checksum; /* crc32c(uuid+id+xattrs) */
/* id = inum if refcount = 1, else blknum */
__u32 h_reserved[3]; /* zero right now */
};
struct ext2_ext_attr_entry {
__u8 e_name_len; /* length of name */
__u8 e_name_index; /* attribute name index */
__u16 e_value_offs; /* offset in disk block of value */
__u32 e_value_inum; /* inode in which the value is stored */
__u32 e_value_size; /* size of attribute value */
__u32 e_hash; /* hash value of name and value */
#if 0
char e_name[0]; /* attribute name */
#endif
};
#define EXT2_EXT_ATTR_PAD_BITS 2
#define EXT2_EXT_ATTR_PAD ((unsigned) 1<<EXT2_EXT_ATTR_PAD_BITS)
#define EXT2_EXT_ATTR_ROUND (EXT2_EXT_ATTR_PAD-1)
#define EXT2_EXT_ATTR_LEN(name_len) \
(((name_len) + EXT2_EXT_ATTR_ROUND + \
sizeof(struct ext2_ext_attr_entry)) & ~EXT2_EXT_ATTR_ROUND)
#define EXT2_EXT_ATTR_NEXT(entry) \
( (struct ext2_ext_attr_entry *)( \
(char *)(entry) + EXT2_EXT_ATTR_LEN((entry)->e_name_len)) )
#define EXT2_EXT_ATTR_SIZE(size) \
(((size) + EXT2_EXT_ATTR_ROUND) & ~EXT2_EXT_ATTR_ROUND)
#define EXT2_EXT_IS_LAST_ENTRY(entry) (*((__u32 *)(entry)) == 0UL)
#define EXT2_EXT_ATTR_NAME(entry) \
(((char *) (entry)) + sizeof(struct ext2_ext_attr_entry))
#define EXT2_XATTR_LEN(name_len) \
(((name_len) + EXT2_EXT_ATTR_ROUND + \
sizeof(struct ext2_xattr_entry)) & ~EXT2_EXT_ATTR_ROUND)
#define EXT2_XATTR_SIZE(size) \
(((size) + EXT2_EXT_ATTR_ROUND) & ~EXT2_EXT_ATTR_ROUND)
#ifdef __KERNEL__
# ifdef CONFIG_EXT2_FS_EXT_ATTR
extern int ext2_get_ext_attr(struct inode *, const char *, char *, size_t, int);
extern int ext2_set_ext_attr(struct inode *, const char *, char *, size_t, int);
extern void ext2_ext_attr_free_inode(struct inode *inode);
extern void ext2_ext_attr_put_super(struct super_block *sb);
extern int ext2_ext_attr_init(void);
extern void ext2_ext_attr_done(void);
# else
# define ext2_get_ext_attr NULL
# define ext2_set_ext_attr NULL
# endif
#endif /* __KERNEL__ */
#endif /* _EXT2_EXT_ATTR_H */
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