2173 lines
73 KiB
C
2173 lines
73 KiB
C
/*
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* ext2fs.h --- ext2fs
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*
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* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Library
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* General Public License, version 2.
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* %End-Header%
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*/
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#ifndef _EXT2FS_EXT2FS_H
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#define _EXT2FS_EXT2FS_H
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#ifdef __GNUC__
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#define EXT2FS_ATTR(x) __attribute__(x)
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#else
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#define EXT2FS_ATTR(x)
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#endif
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#ifdef CONFIG_TDB
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#define EXT2FS_NO_TDB_UNUSED
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#else
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#define EXT2FS_NO_TDB_UNUSED EXT2FS_ATTR((unused))
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Non-GNU C compilers won't necessarily understand inline
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*/
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#if (!defined(__GNUC__) && !defined(__WATCOMC__))
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#define NO_INLINE_FUNCS
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#endif
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/*
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* Where the master copy of the superblock is located, and how big
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* superblocks are supposed to be. We define SUPERBLOCK_SIZE because
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* the size of the superblock structure is not necessarily trustworthy
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* (some versions have the padding set up so that the superblock is
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* 1032 bytes long).
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*/
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#define SUPERBLOCK_OFFSET 1024
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#define SUPERBLOCK_SIZE 1024
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#define UUID_STR_SIZE 37
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/*
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* The last ext2fs revision level that this version of the library is
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* able to support.
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*/
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#define EXT2_LIB_CURRENT_REV EXT2_DYNAMIC_REV
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <errno.h>
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#if EXT2_FLAT_INCLUDES
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#include "e2_types.h"
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#include "ext2_fs.h"
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#include "ext3_extents.h"
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#else
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#include <ext2fs/ext2_types.h>
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#include <ext2fs/ext2_fs.h>
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#include <ext2fs/ext3_extents.h>
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#endif /* EXT2_FLAT_INCLUDES */
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typedef __u32 __bitwise ext2_ino_t;
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typedef __u32 __bitwise blk_t;
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typedef __u64 __bitwise blk64_t;
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typedef __u32 __bitwise dgrp_t;
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typedef __s32 __bitwise ext2_off_t;
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typedef __s64 __bitwise ext2_off64_t;
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typedef __s64 __bitwise e2_blkcnt_t;
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typedef __u32 __bitwise ext2_dirhash_t;
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#if EXT2_FLAT_INCLUDES
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#include "com_err.h"
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#include "ext2_io.h"
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#include "ext2_err.h"
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#include "ext2_ext_attr.h"
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#else
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#include <et/com_err.h>
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#include <ext2fs/ext2_io.h>
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#include <ext2fs/ext2_err.h>
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#include <ext2fs/ext2_ext_attr.h>
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#endif
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#include "hashmap.h"
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/*
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* Portability help for Microsoft Visual C++
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*/
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#ifdef _MSC_VER
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#define EXT2_QSORT_TYPE int __cdecl
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#else
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#define EXT2_QSORT_TYPE int
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#endif
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typedef struct struct_ext2_filsys *ext2_filsys;
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#define EXT2FS_MARK_ERROR 0
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#define EXT2FS_UNMARK_ERROR 1
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#define EXT2FS_TEST_ERROR 2
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struct ext2fs_struct_generic_bitmap_base {
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errcode_t magic;
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ext2_filsys fs;
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};
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typedef struct ext2fs_struct_generic_bitmap_base *ext2fs_generic_bitmap;
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typedef struct ext2fs_struct_generic_bitmap_base *ext2fs_inode_bitmap;
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typedef struct ext2fs_struct_generic_bitmap_base *ext2fs_block_bitmap;
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#define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
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/*
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* Badblocks list definitions
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*/
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typedef struct ext2_struct_u32_list *ext2_badblocks_list;
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typedef struct ext2_struct_u32_iterate *ext2_badblocks_iterate;
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typedef struct ext2_struct_u32_list *ext2_u32_list;
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typedef struct ext2_struct_u32_iterate *ext2_u32_iterate;
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/* old */
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typedef struct ext2_struct_u32_list *badblocks_list;
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typedef struct ext2_struct_u32_iterate *badblocks_iterate;
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#define BADBLOCKS_FLAG_DIRTY 1
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/*
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* ext2_dblist structure and abstractions (see dblist.c)
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*/
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struct ext2_db_entry2 {
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ext2_ino_t ino;
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blk64_t blk;
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e2_blkcnt_t blockcnt;
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};
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/* Ye Olde 32-bit version */
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struct ext2_db_entry {
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ext2_ino_t ino;
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blk_t blk;
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int blockcnt;
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};
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typedef struct ext2_struct_dblist *ext2_dblist;
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#define DBLIST_ABORT 1
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/*
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* ext2_fileio definitions
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*/
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#define EXT2_FILE_WRITE 0x0001
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#define EXT2_FILE_CREATE 0x0002
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#define EXT2_FILE_MASK 0x00FF
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#define EXT2_FILE_BUF_DIRTY 0x4000
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#define EXT2_FILE_BUF_VALID 0x2000
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typedef struct ext2_file *ext2_file_t;
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#define EXT2_SEEK_SET 0
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#define EXT2_SEEK_CUR 1
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#define EXT2_SEEK_END 2
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/*
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* Flags for the ext2_filsys structure and for ext2fs_open()
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*/
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#define EXT2_FLAG_RW 0x01
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#define EXT2_FLAG_CHANGED 0x02
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#define EXT2_FLAG_DIRTY 0x04
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#define EXT2_FLAG_VALID 0x08
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#define EXT2_FLAG_IB_DIRTY 0x10
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#define EXT2_FLAG_BB_DIRTY 0x20
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#define EXT2_FLAG_SWAP_BYTES 0x40
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#define EXT2_FLAG_SWAP_BYTES_READ 0x80
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#define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
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#define EXT2_FLAG_MASTER_SB_ONLY 0x200
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#define EXT2_FLAG_FORCE 0x400
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#define EXT2_FLAG_SUPER_ONLY 0x800
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#define EXT2_FLAG_JOURNAL_DEV_OK 0x1000
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#define EXT2_FLAG_IMAGE_FILE 0x2000
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#define EXT2_FLAG_EXCLUSIVE 0x4000
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#define EXT2_FLAG_SOFTSUPP_FEATURES 0x8000
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#define EXT2_FLAG_NOFREE_ON_ERROR 0x10000
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#define EXT2_FLAG_64BITS 0x20000
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#define EXT2_FLAG_PRINT_PROGRESS 0x40000
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#define EXT2_FLAG_DIRECT_IO 0x80000
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#define EXT2_FLAG_SKIP_MMP 0x100000
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#define EXT2_FLAG_IGNORE_CSUM_ERRORS 0x200000
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#define EXT2_FLAG_SHARE_DUP 0x400000
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#define EXT2_FLAG_IGNORE_SB_ERRORS 0x800000
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#define EXT2_FLAG_BBITMAP_TAIL_PROBLEM 0x1000000
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#define EXT2_FLAG_IBITMAP_TAIL_PROBLEM 0x2000000
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#define EXT2_FLAG_THREADS 0x4000000
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/*
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* Special flag in the ext2 inode i_flag field that means that this is
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* a new inode. (So that ext2_write_inode() can clear extra fields.)
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*/
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#define EXT2_NEW_INODE_FL 0x80000000
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/*
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* Flags for mkjournal
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*/
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#define EXT2_MKJOURNAL_V1_SUPER 0x0000001 /* create V1 superblock (deprecated) */
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#define EXT2_MKJOURNAL_LAZYINIT 0x0000002 /* don't zero journal inode before use*/
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#define EXT2_MKJOURNAL_NO_MNT_CHECK 0x0000004 /* don't check mount status */
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/*
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* Normal journal area size to fast commit area size ratio. This is used to
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* set default size of fast commit area.
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*/
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#define EXT2_JOURNAL_TO_FC_BLKS_RATIO 64
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struct blk_alloc_ctx;
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struct opaque_ext2_group_desc;
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struct struct_ext2_filsys {
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errcode_t magic;
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io_channel io;
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int flags;
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char * device_name;
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struct ext2_super_block * super;
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unsigned int blocksize;
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int fragsize;
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dgrp_t group_desc_count;
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unsigned long desc_blocks;
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struct opaque_ext2_group_desc * group_desc;
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unsigned int inode_blocks_per_group;
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ext2fs_inode_bitmap inode_map;
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ext2fs_block_bitmap block_map;
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/* XXX FIXME-64: not 64-bit safe, but not used? */
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errcode_t (*get_blocks)(ext2_filsys fs, ext2_ino_t ino, blk_t *blocks);
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errcode_t (*check_directory)(ext2_filsys fs, ext2_ino_t ino);
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errcode_t (*write_bitmaps)(ext2_filsys fs);
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errcode_t (*read_inode)(ext2_filsys fs, ext2_ino_t ino,
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struct ext2_inode *inode);
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errcode_t (*write_inode)(ext2_filsys fs, ext2_ino_t ino,
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struct ext2_inode *inode);
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ext2_badblocks_list badblocks;
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ext2_dblist dblist;
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__u32 stride; /* for mke2fs */
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struct ext2_super_block * orig_super;
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struct ext2_image_hdr * image_header;
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__u32 umask;
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time_t now;
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int cluster_ratio_bits;
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__u16 default_bitmap_type;
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__u16 pad;
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/*
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* Reserved for future expansion
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*/
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__u32 reserved[5];
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/*
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* Reserved for the use of the calling application.
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*/
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void * priv_data;
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/*
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* Inode cache
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*/
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struct ext2_inode_cache *icache;
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io_channel image_io;
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/*
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* More callback functions
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*/
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errcode_t (*get_alloc_block)(ext2_filsys fs, blk64_t goal,
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blk64_t *ret);
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errcode_t (*get_alloc_block2)(ext2_filsys fs, blk64_t goal,
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blk64_t *ret, struct blk_alloc_ctx *ctx);
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void (*block_alloc_stats)(ext2_filsys fs, blk64_t blk, int inuse);
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/*
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* Buffers for Multiple mount protection(MMP) block.
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*/
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void *mmp_buf;
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void *mmp_cmp;
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int mmp_fd;
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/*
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* Time at which e2fsck last updated the MMP block.
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*/
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long mmp_last_written;
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/* progress operation functions */
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struct ext2fs_progress_ops *progress_ops;
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/* Precomputed FS UUID checksum for seeding other checksums */
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__u32 csum_seed;
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io_channel journal_io;
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char *journal_name;
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/* New block range allocation hooks */
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errcode_t (*new_range)(ext2_filsys fs, int flags, blk64_t goal,
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blk64_t len, blk64_t *pblk, blk64_t *plen);
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void (*block_alloc_stats_range)(ext2_filsys fs, blk64_t blk, blk_t num,
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int inuse);
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/* hashmap for SHA of data blocks */
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struct ext2fs_hashmap* block_sha_map;
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const struct ext2fs_nls_table *encoding;
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};
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#if EXT2_FLAT_INCLUDES
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#include "e2_bitops.h"
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#else
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#include <ext2fs/bitops.h>
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#endif
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/*
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* 64-bit bitmap backend types
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*/
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#define EXT2FS_BMAP64_BITARRAY 1
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#define EXT2FS_BMAP64_RBTREE 2
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#define EXT2FS_BMAP64_AUTODIR 3
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/*
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* Return flags for the block iterator functions
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*/
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#define BLOCK_CHANGED 1
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#define BLOCK_ABORT 2
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#define BLOCK_ERROR 4
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#define BLOCK_INLINE_DATA_CHANGED 8
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/*
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* Block interate flags
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*
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* BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
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* function should be called on blocks where the block number is zero.
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* This is used by ext2fs_expand_dir() to be able to add a new block
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* to an inode. It can also be used for programs that want to be able
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* to deal with files that contain "holes".
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*
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* BLOCK_FLAG_DEPTH_TRAVERSE indicates that the iterator function for
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* the indirect, doubly indirect, etc. blocks should be called after
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* all of the blocks contained in the indirect blocks are processed.
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* This is useful if you are going to be deallocating blocks from an
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* inode.
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*
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* BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
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* called for data blocks only.
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*
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* BLOCK_FLAG_READ_ONLY is a promise by the caller that it will not
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* modify returned block number.
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*
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* BLOCK_FLAG_NO_LARGE is for internal use only. It informs
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* ext2fs_block_iterate2 that large files won't be accepted.
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*/
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#define BLOCK_FLAG_APPEND 1
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#define BLOCK_FLAG_HOLE 1
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#define BLOCK_FLAG_DEPTH_TRAVERSE 2
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#define BLOCK_FLAG_DATA_ONLY 4
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#define BLOCK_FLAG_READ_ONLY 8
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#define BLOCK_FLAG_NO_LARGE 0x1000
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/*
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* Magic "block count" return values for the block iterator function.
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*/
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#define BLOCK_COUNT_IND (-1)
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#define BLOCK_COUNT_DIND (-2)
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#define BLOCK_COUNT_TIND (-3)
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#define BLOCK_COUNT_TRANSLATOR (-4)
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#define BLOCK_ALLOC_UNKNOWN 0
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#define BLOCK_ALLOC_DATA 1
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#define BLOCK_ALLOC_METADATA 2
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struct blk_alloc_ctx {
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ext2_ino_t ino;
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struct ext2_inode *inode;
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blk64_t lblk;
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int flags;
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};
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#if 0
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/*
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* Flags for ext2fs_move_blocks
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*/
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#define EXT2_BMOVE_GET_DBLIST 0x0001
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#define EXT2_BMOVE_DEBUG 0x0002
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#endif
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/*
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* Generic (non-filesystem layout specific) extents structure
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*/
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#define EXT2_EXTENT_FLAGS_LEAF 0x0001
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#define EXT2_EXTENT_FLAGS_UNINIT 0x0002
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#define EXT2_EXTENT_FLAGS_SECOND_VISIT 0x0004
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struct ext2fs_extent {
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blk64_t e_pblk; /* first physical block */
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blk64_t e_lblk; /* first logical block extent covers */
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__u32 e_len; /* number of blocks covered by extent */
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__u32 e_flags; /* extent flags */
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};
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typedef struct ext2_extent_handle *ext2_extent_handle_t;
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typedef struct ext2_extent_path *ext2_extent_path_t;
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/*
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* Flags used by ext2fs_extent_get()
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*/
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#define EXT2_EXTENT_CURRENT 0x0000
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#define EXT2_EXTENT_MOVE_MASK 0x000F
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#define EXT2_EXTENT_ROOT 0x0001
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#define EXT2_EXTENT_LAST_LEAF 0x0002
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#define EXT2_EXTENT_FIRST_SIB 0x0003
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#define EXT2_EXTENT_LAST_SIB 0x0004
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#define EXT2_EXTENT_NEXT_SIB 0x0005
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#define EXT2_EXTENT_PREV_SIB 0x0006
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#define EXT2_EXTENT_NEXT_LEAF 0x0007
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#define EXT2_EXTENT_PREV_LEAF 0x0008
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#define EXT2_EXTENT_NEXT 0x0009
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#define EXT2_EXTENT_PREV 0x000A
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#define EXT2_EXTENT_UP 0x000B
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#define EXT2_EXTENT_DOWN 0x000C
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#define EXT2_EXTENT_DOWN_AND_LAST 0x000D
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/*
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* Flags used by ext2fs_extent_insert()
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*/
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#define EXT2_EXTENT_INSERT_AFTER 0x0001 /* insert after handle loc'n */
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#define EXT2_EXTENT_INSERT_NOSPLIT 0x0002 /* insert may not cause split */
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/*
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* Flags used by ext2fs_extent_delete()
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*/
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#define EXT2_EXTENT_DELETE_KEEP_EMPTY 0x001 /* keep node if last extent gone */
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/*
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* Flags used by ext2fs_extent_set_bmap()
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*/
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#define EXT2_EXTENT_SET_BMAP_UNINIT 0x0001
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/*
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* Data structure returned by ext2fs_extent_get_info()
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*/
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struct ext2_extent_info {
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int curr_entry;
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int curr_level;
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int num_entries;
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int max_entries;
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int max_depth;
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int bytes_avail;
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blk64_t max_lblk;
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blk64_t max_pblk;
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__u32 max_len;
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__u32 max_uninit_len;
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};
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/*
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* Flags for directory block reading and writing functions
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*/
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#define EXT2_DIRBLOCK_V2_STRUCT 0x0001
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/*
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* Return flags for the directory iterator functions
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*/
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#define DIRENT_CHANGED 1
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#define DIRENT_ABORT 2
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#define DIRENT_ERROR 3
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/*
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* Directory iterator flags
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*/
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#define DIRENT_FLAG_INCLUDE_EMPTY 1
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#define DIRENT_FLAG_INCLUDE_REMOVED 2
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#define DIRENT_FLAG_INCLUDE_CSUM 4
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#define DIRENT_FLAG_INCLUDE_INLINE_DATA 8
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#define DIRENT_DOT_FILE 1
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#define DIRENT_DOT_DOT_FILE 2
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#define DIRENT_OTHER_FILE 3
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#define DIRENT_DELETED_FILE 4
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#define DIRENT_CHECKSUM 5
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/*
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* Inode scan definitions
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*/
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typedef struct ext2_struct_inode_scan *ext2_inode_scan;
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|
|
/*
|
|
* 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|\
|
|
EXT4_FEATURE_COMPAT_FAST_COMMIT|\
|
|
EXT4_FEATURE_COMPAT_STABLE_INODES)
|
|
|
|
#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
|
|
|
|
/*
|
|
* flags for ext2fs_rw_bitmaps()
|
|
*/
|
|
#define EXT2FS_BITMAPS_WRITE 0x0001
|
|
#define EXT2FS_BITMAPS_BLOCK 0x0002
|
|
#define EXT2FS_BITMAPS_INODE 0x0004
|
|
#define EXT2FS_BITMAPS_VALID_FLAGS 0x0007
|
|
|
|
/*
|
|
* 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_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_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_dx_csum(ext2_filsys fs, ext2_ino_t inum,
|
|
struct ext2_dir_entry *dirent,
|
|
__u32 *crc, struct ext2_dx_tail **ret_t);
|
|
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);
|
|
extern errcode_t ext2fs_count_blocks(ext2_filsys fs, ext2_ino_t ino,
|
|
struct ext2_inode *inode, blk64_t *ret_count);
|
|
extern errcode_t ext2fs_decode_extent(struct ext2fs_extent *to, void *from,
|
|
int len);
|
|
|
|
/* 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);
|
|
errcode_t ext2fs_count_used_clusters(ext2_filsys fs, blk64_t start,
|
|
blk64_t end, blk64_t *out);
|
|
|
|
/* 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);
|
|
extern errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs, int super_only);
|
|
|
|
/* 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);
|
|
extern int ext2fs_check_encoded_name(const struct ext2fs_nls_table *table,
|
|
char *s, size_t len, char **pos);
|
|
extern int ext2fs_casefold_cmp(const struct ext2fs_nls_table *table,
|
|
const unsigned char *str1, size_t len1,
|
|
const unsigned char *str2, size_t len2);
|
|
|
|
/* mkdir.c */
|
|
extern errcode_t ext2fs_mkdir(ext2_filsys fs, ext2_ino_t parent, ext2_ino_t inum,
|
|
const char *name);
|
|
|
|
/* mkjournal.c */
|
|
struct ext2fs_journal_params {
|
|
blk_t num_journal_blocks;
|
|
blk_t num_fc_blocks;
|
|
};
|
|
extern errcode_t ext2fs_get_journal_params(
|
|
struct ext2fs_journal_params *params, ext2_filsys fs);
|
|
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_create_journal_superblock2(ext2_filsys fs,
|
|
struct ext2fs_journal_params *params,
|
|
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 errcode_t ext2fs_add_journal_inode3(ext2_filsys fs,
|
|
struct ext2fs_journal_params *params,
|
|
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 */
|
|
#define EXT2FS_UNLINK_FORCE 0x1 /* Forcefully unlink even if
|
|
* the inode number doesn't
|
|
* match the dirent
|
|
*/
|
|
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);
|
|
|
|
/* rw_bitmaps.c */
|
|
extern errcode_t ext2fs_rw_bitmaps(ext2_filsys fs, int flags, int num_threads);
|
|
extern errcode_t ext2fs_read_bitmaps(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_write_bitmaps(ext2_filsys fs);
|
|
extern errcode_t ext2fs_write_inode_bitmap(ext2_filsys fs);
|
|
extern errcode_t ext2fs_write_block_bitmap (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 */
|