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reactos/drivers/filesystems/ext2/inc/ext2fs.h
Vincent Franchomme aaeb131bd4
[EXT2FS] Align with upstream and mark ReactOS diff (#5245) 
NOTE: There are no new features in this PR, we stay with upstream version 0.69.
CORE-18645

- Add ifdefs to distinguish ReactOS code/fixes from the upstream code;
- If upstream code was overriden, reintroduce it in #else section;
- Re-align .rc version info with upstream (0.69).
2023-04-30 18:26:30 +02:00

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/*
* COPYRIGHT: See COPYRIGHT.TXT
* PROJECT: Ext2 File System Driver for WinNT/2K/XP
* FILE: Ext2fs.h
* PURPOSE: Header file: ext2 structures
* PROGRAMMER: Matt Wu <mattwu@163.com>
* HOMEPAGE: http://www.ext2fsd.com
* UPDATE HISTORY:
*/
#ifndef _EXT2_HEADER_
#define _EXT2_HEADER_
/* INCLUDES *************************************************************/
#include <linux/module.h>
#include <ntdddisk.h>
#ifdef __REACTOS__
#include <ndk/rtlfuncs.h>
#include <pseh/pseh2.h>
typedef IO_STACK_LOCATION EXTENDED_IO_STACK_LOCATION, *PEXTENDED_IO_STACK_LOCATION;
#endif
#include <stdio.h>
#include <time.h>
#include <string.h>
#include <linux/ext2_fs.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_fs_i.h>
#include <linux/ext4.h>
/* DEBUG ****************************************************************/
#if DBG
# define EXT2_DEBUG 1
#else
# define EXT2_DEBUG 0
#endif
#define EXT_DEBUG_BREAKPOINT FALSE
#if EXT2_DEBUG && EXT_DEBUG_BREAKPOINT
//#if _X86_
//#define DbgBreak() __asm int 3
//#else
#define DbgBreak() KdBreakPoint()
//#endif
#else
#define DbgBreak()
#endif
/* STRUCTS & CONSTS******************************************************/
#define EXT2FSD_VERSION "0.69"
/* WDK DEFINITIONS ******************************************************/
/* COMPILER SWITCH / OPTIONS ********************************************/
//
// Ext2Fsd build options
//
// To support driver dynamics unload
#define EXT2_UNLOAD FALSE
// To support inode size expansion (fallocate)
#define EXT2_PRE_ALLOCATION_SUPPORT TRUE
//
// Constants
//
#define EXT2_MAX_NESTED_LINKS (8)
#define EXT2_LINKLEN_IN_INODE (60)
#define EXT2_BLOCK_TYPES (0x04)
#define MAXIMUM_RECORD_LENGTH (0x10000)
#define SECTOR_BITS (Vcb->SectorBits)
#define SECTOR_SIZE (Vcb->DiskGeometry.BytesPerSector)
#define DEFAULT_SECTOR_SIZE (0x200)
#define SUPER_BLOCK_OFFSET (0x400)
#define SUPER_BLOCK_SIZE (0x400)
#define READ_AHEAD_GRANULARITY (0x10000)
#define SUPER_BLOCK (Vcb->SuperBlock)
#define INODE_SIZE (Vcb->InodeSize)
#define BLOCK_SIZE (Vcb->BlockSize)
#define BLOCK_BITS (SUPER_BLOCK->s_log_block_size + 10)
#define GROUP_DESC_SIZE (Vcb->sbi.s_desc_size)
#define INODES_COUNT (Vcb->SuperBlock->s_inodes_count)
#define INODES_PER_GROUP (SUPER_BLOCK->s_inodes_per_group)
#define BLOCKS_PER_GROUP (SUPER_BLOCK->s_blocks_per_group)
#define TOTAL_BLOCKS (ext3_blocks_count(SUPER_BLOCK))
#define EXT2_FIRST_DATA_BLOCK (SUPER_BLOCK->s_first_data_block)
typedef struct ext3_super_block EXT2_SUPER_BLOCK, *PEXT2_SUPER_BLOCK;
typedef struct ext3_inode EXT2_INODE, *PEXT2_INODE;
typedef struct ext4_group_desc EXT2_GROUP_DESC, *PEXT2_GROUP_DESC;
typedef struct ext3_dir_entry EXT2_DIR_ENTRY, *PEXT2_DIR_ENTRY;
typedef struct ext3_dir_entry_2 EXT2_DIR_ENTRY2, *PEXT2_DIR_ENTRY2;
#define CEILING_ALIGNED(T, A, B) (((A) + (B) - 1) & (~((T)(B) - 1)))
#define COCKLOFT_ALIGNED(T, A, B) (((A) + (B)) & (~((T)(B) - 1)))
/*
* Compile-time assertion: (Lustre version)
*
* Check an invariant described by a constant expression at compile time by
* forcing a compiler error if it does not hold. \a cond must be a constant
* expression as defined by the ISO C Standard:
*
* 6.8.4.2 The switch statement
* ....
* [#3] The expression of each case label shall be an integer
* constant expression and no two of the case constant
* expressions in the same switch statement shall have the same
* value after conversion...
*
*/
#define CL_ASSERT(cond) do {switch('x') {case (cond): case 0: break;}} while (0)
/* File System Releated *************************************************/
#define DRIVER_NAME "Ext2Fsd"
#define DEVICE_NAME L"\\Ext2Fsd"
#define CDROM_NAME L"\\Ext2CdFsd"
// Registry
#define PARAMETERS_KEY L"\\Parameters"
#define VOLUMES_KEY L"\\Volumes"
#define READING_ONLY L"Readonly"
#define WRITING_SUPPORT L"WritingSupport"
#define CHECKING_BITMAP L"CheckingBitmap"
#define EXT3_FORCEWRITING L"Ext3ForceWriting"
#define CODEPAGE_NAME L"CodePage"
#define HIDING_PREFIX L"HidingPrefix"
#define HIDING_SUFFIX L"HidingSuffix"
#define AUTO_MOUNT L"AutoMount"
#define MOUNT_POINT L"MountPoint"
#define UID L"uid"
#define GID L"gid"
#define EUID L"euid"
#define EGID L"egid"
#define DOS_DEVICE_NAME L"\\DosDevices\\Ext2Fsd"
// To support ext2fsd unload routine
#if EXT2_UNLOAD
//
// Private IOCTL to make the driver ready to unload
//
#define IOCTL_PREPARE_TO_UNLOAD \
CTL_CODE(FILE_DEVICE_UNKNOWN, 2048, METHOD_NEITHER, FILE_WRITE_ACCESS)
#endif // EXT2_UNLOAD
#include "common.h"
#ifndef _GNU_NTIFS_
typedef IO_STACK_LOCATION EXTENDED_IO_STACK_LOCATION, *PEXTENDED_IO_STACK_LOCATION;
#endif
#define IsFlagOn(a,b) ((BOOLEAN)(FlagOn(a,b) == b))
#ifndef FlagOn
#define FlagOn(_F,_SF) ((_F) & (_SF))
#endif
#ifndef BooleanFlagOn
#define BooleanFlagOn(F,SF) ((BOOLEAN)(((F) & (SF)) != 0))
#endif
#ifndef SetFlag
#define SetFlag(_F,_SF) ((_F) |= (_SF))
#endif
#ifndef ClearFlag
#define ClearFlag(_F,_SF) ((_F) &= ~(_SF))
#endif
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#endif
#ifdef _WIN2K_TARGET_
#define InterlockedOr _InterlockedOr
LONG
_InterlockedAnd (
IN OUT LONG volatile *Target,
IN LONG Set
);
#pragma intrinsic (_InterlockedAnd)
#define InterlockedAnd _InterlockedAnd
LONG
_InterlockedXor (
IN OUT LONG volatile *Target,
IN LONG Set
);
#pragma intrinsic (_InterlockedXor)
#define InterlockedXor _InterlockedXor
#endif /* only for win2k */
#if EXT2_DEBUG
#ifdef __REACTOS__
#define SetLongFlag(_F,_SF) Ext2SetFlag((PULONG)&(_F), (ULONG)(_SF))
#define ClearLongFlag(_F,_SF) Ext2ClearFlag((PULONG)&(_F), (ULONG)(_SF))
#else
#define SetLongFlag(_F,_SF) Ext2SetFlag(&(_F), (ULONG)(_SF))
#define ClearLongFlag(_F,_SF) Ext2ClearFlag(&(_F), (ULONG)(_SF))
#endif
#ifdef __REACTOS__
static
#endif
__inline
VOID
Ext2SetFlag(PULONG Flags, ULONG FlagBit)
{
ULONG _ret = InterlockedOr(Flags, FlagBit);
ASSERT(*Flags == (_ret | FlagBit));
}
#ifdef __REACTOS__
static
#endif
__inline
VOID
Ext2ClearFlag(PULONG Flags, ULONG FlagBit)
{
ULONG _ret = InterlockedAnd(Flags, ~FlagBit);
ASSERT(*Flags == (_ret & (~FlagBit)));
}
#else
#define SetLongFlag(_F,_SF) InterlockedOr(&(_F), (ULONG)(_SF))
#define ClearLongFlag(_F,_SF) InterlockedAnd(&(_F), ~((ULONG)(_SF)))
#endif /* release */
#define Ext2RaiseStatus(IRPCONTEXT,STATUS) { \
(IRPCONTEXT)->ExceptionCode = (STATUS); \
ExRaiseStatus((STATUS)); \
}
#define Ext2NormalizeAndRaiseStatus(IRPCONTEXT,STATUS) { \
(IRPCONTEXT)->ExceptionCode = STATUS; \
if ((STATUS) == STATUS_VERIFY_REQUIRED) { ExRaiseStatus((STATUS)); } \
ExRaiseStatus(FsRtlNormalizeNtstatus((STATUS),STATUS_UNEXPECTED_IO_ERROR)); \
}
//
// Define IsWritingToEof for write (append) operations
//
#define FILE_WRITE_TO_END_OF_FILE 0xffffffff
#define IsWritingToEof(Pos) (((Pos).LowPart == FILE_WRITE_TO_END_OF_FILE) && \
((Pos).HighPart == -1 ))
#define IsDirectory(Fcb) IsMcbDirectory((Fcb)->Mcb)
#define IsSpecialFile(Fcb) IsMcbSpecialFile((Fcb)->Mcb)
#define IsSymLink(Fcb) IsMcbSymLink((Fcb)->Mcb)
#define IsInodeSymLink(I) S_ISLNK((I)->i_mode)
#define IsRoot(Fcb) IsMcbRoot((Fcb)->Mcb)
//
// Pool Tags
//
#define TAG_VPB ' bpV'
#define VPB_SIZE sizeof(VPB)
#define EXT2_DATA_MAGIC 'BD2E'
#define EXT2_INAME_MAGIC 'NI2E'
#define EXT2_FNAME_MAGIC 'NF2E'
#define EXT2_VNAME_MAGIC 'NV2E'
#define EXT2_DENTRY_MAGIC 'ED2E'
#define EXT2_DIRSP_MAGIC 'SD2E'
#define EXT2_SB_MAGIC 'BS2E'
#define EXT2_GD_MAGIC 'DG2E'
#define EXT2_FLIST_MAGIC 'LF2E'
#define EXT2_PARAM_MAGIC 'PP2E'
#define EXT2_RWC_MAGIC 'WR2E'
//
// Bug Check Codes Definitions
//
#define EXT2_FILE_SYSTEM (FILE_SYSTEM)
#define EXT2_BUGCHK_BLOCK (0x00010000)
#define EXT2_BUGCHK_CLEANUP (0x00020000)
#define EXT2_BUGCHK_CLOSE (0x00030000)
#define EXT2_BUGCHK_CMCB (0x00040000)
#define EXT2_BUGCHK_CREATE (0x00050000)
#define EXT2_BUGCHK_DEBUG (0x00060000)
#define EXT2_BUGCHK_DEVCTL (0x00070000)
#define EXT2_BUGCHK_DIRCTL (0x00080000)
#define EXT2_BUGCHK_DISPATCH (0x00090000)
#define EXT2_BUGCHK_EXCEPT (0x000A0000)
#define EXT2_BUGCHK_EXT2 (0x000B0000)
#define EXT2_BUGCHK_FASTIO (0x000C0000)
#define EXT2_BUGCHK_FILEINFO (0x000D0000)
#define EXT2_BUGCHK_FLUSH (0x000E0000)
#define EXT2_BUGCHK_FSCTL (0x000F0000)
#define EXT2_BUGCHK_INIT (0x00100000)
#define EXT2_BUGCHK_LOCK (0x0011000)
#define EXT2_BUGCHK_MEMORY (0x0012000)
#define EXT2_BUGCHK_MISC (0x0013000)
#define EXT2_BUGCHK_READ (0x00140000)
#define EXT2_BUGCHK_SHUTDOWN (0x00150000)
#define EXT2_BUGCHK_VOLINFO (0x00160000)
#define EXT2_BUGCHK_WRITE (0x00170000)
#define EXT2_BUGCHK_LAST (0x00170000)
#define Ext2BugCheck(A,B,C,D) { KeBugCheckEx(EXT2_FILE_SYSTEM, A | __LINE__, B, C, D ); }
/* Ext2 file system definions *******************************************/
//
// The second extended file system magic number
//
#define EXT2_SUPER_MAGIC 0xEF53
#define EXT2_MIN_BLOCK 1024
#define EXT2_MIN_FRAG 1024
#define EXT2_MAX_USER_BLKSIZE 65536
//
// Inode flags (Linux uses octad number, but why ? strange!!!)
//
#define S_IFMT 0x0F000 /* 017 0000 */
#define S_IFSOCK 0x0C000 /* 014 0000 */
#define S_IFLNK 0x0A000 /* 012 0000 */
#define S_IFREG 0x08000 /* 010 0000 */
#define S_IFBLK 0x06000 /* 006 0000 */
#define S_IFDIR 0x04000 /* 004 0000 */
#define S_IFCHR 0x02000 /* 002 0000 */
#define S_IFIFO 0x01000 /* 001 0000 */
#define S_ISUID 0x00800 /* 000 4000 */
#define S_ISGID 0x00400 /* 000 2000 */
#define S_ISVTX 0x00200 /* 000 1000 */
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
#define S_ISFIL(m) (((m) & S_IFMT) == S_IFFIL)
#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
#define S_IPERMISSION_MASK 0x1FF /* */
#define S_IRWXU 0x1C0 /* 0 0700 */
#define S_IRWNU 0x180 /* 0 0600 */
#define S_IRUSR 0x100 /* 0 0400 */
#define S_IWUSR 0x080 /* 0 0200 */
#define S_IXUSR 0x040 /* 0 0100 */
#define S_IRWXG 0x038 /* 0 0070 */
#define S_IRWNG 0x030 /* 0 0060 */
#define S_IRGRP 0x020 /* 0 0040 */
#define S_IWGRP 0x010 /* 0 0020 */
#define S_IXGRP 0x008 /* 0 0010 */
#define S_IRWXO 0x007 /* 0 0007 */
#define S_IRWNO 0x006 /* 0 0006 */
#define S_IROTH 0x004 /* 0 0004 */
#define S_IWOTH 0x002 /* 0 0002 */
#define S_IXOTH 0x001 /* 0 0001 */
#define S_IRWXUGO (S_IRWXU|S_IRWXG|S_IRWXO)
#define S_IALLUGO (S_ISUID|S_ISGID|S_ISVTX|S_IRWXUGO)
#define S_IRUGO (S_IRUSR|S_IRGRP|S_IROTH)
#define S_IWUGO (S_IWUSR|S_IWGRP|S_IWOTH)
#define S_IXUGO (S_IXUSR|S_IXGRP|S_IXOTH)
#define S_IFATTR (S_IRWNU|S_IRWNG|S_IRWNO)
#define S_ISREADABLE(m) (((m) & S_IPERMISSION_MASK) == (S_IRUSR | S_IRGRP | S_IROTH))
#define S_ISWRITABLE(m) (((m) & S_IPERMISSION_MASK) == (S_IWUSR | S_IWGRP | S_IWOTH))
#define Ext2SetReadable(m) do {(m) = (m) | (S_IRUSR | S_IRGRP | S_IROTH);} while(0)
#define Ext2SetWritable(m) do {(m) = (m) | (S_IWUSR | S_IWGRP | S_IWOTH);} while(0)
#define Ext2SetOwnerWritable(m) do {(m) |= S_IWUSR;} while(0)
#define Ext2SetOwnerReadOnly(m) do {(m) &= ~S_IWUSR;} while(0)
#define Ext2IsOwnerWritable(m) (((m) & S_IWUSR) == S_IWUSR)
#define Ext2IsOwnerReadable(m) (((m) & S_IRUSR) == S_IRUSR)
#define Ext2IsOwnerReadOnly(m) (!(Ext2IsOwnerWritable(m)) && Ext2IsOwnerReadable(m))
#define Ext2IsGroupWritable(m) (((m) & S_IWGRP) == S_IWGRP)
#define Ext2IsGroupReadable(m) (((m) & S_IRGRP) == S_IRGRP)
#define Ext2IsGroupReadOnly(m) (!(Ext2IsGroupWritable(m)) && Ext2IsGroupReadable(m))
#define Ext2IsOtherWritable(m) (((m) & S_IWOTH) == S_IWOTH)
#define Ext2IsOtherReadable(m) (((m) & S_IROTH) == S_IROTH)
#define Ext2IsOtherReadOnly(m) (!(Ext2IsOtherWritable(m)) && Ext2IsOtherReadable(m))
#define Ext2SetReadOnly(m) do {(m) &= ~(S_IWUSR | S_IWGRP | S_IWOTH);} while(0)
#define Ext2FileCanRead (0x1)
#define Ext2FileCanWrite (0x2)
#define Ext2FileCanExecute (0x4)
/*
* We need 8-bytes aligned for all the sturctures
* It's a must for all ERESOURCE allocations
*/
//
// Ext2Fsd Driver Definitions
//
//
// EXT2_IDENTIFIER_TYPE
//
// Identifiers used to mark the structures
//
typedef enum _EXT2_IDENTIFIER_TYPE {
#ifdef _MSC_VER
EXT2FGD = ':DGF',
EXT2VCB = ':BCV',
EXT2FCB = ':BCF',
EXT2CCB = ':BCC',
EXT2ICX = ':XCI',
EXT2FSD = ':DSF',
EXT2MCB = ':BCM'
#else
EXT2FGD = 0xE2FD0001,
EXT2VCB = 0xE2FD0002,
EXT2FCB = 0xE2FD0003,
EXT2CCB = 0xE2FD0004,
EXT2ICX = 0xE2FD0005,
EXT2FSD = 0xE2FD0006,
EXT2MCB = 0xE2FD0007
#endif
} EXT2_IDENTIFIER_TYPE;
//
// EXT2_IDENTIFIER
//
// Header used to mark the structures
//
typedef struct _EXT2_IDENTIFIER {
EXT2_IDENTIFIER_TYPE Type;
ULONG Size;
} EXT2_IDENTIFIER, *PEXT2_IDENTIFIER;
#define NodeType(Ptr) (*((EXT2_IDENTIFIER_TYPE *)(Ptr)))
typedef struct _EXT2_MCB EXT2_MCB, *PEXT2_MCB;
typedef PVOID PBCB;
//
//
// EXT2_GLOBAL_DATA
//
// Data that is not specific to a mounted volume
//
#ifdef __REACTOS__
typedef VOID (NTAPI *EXT2_REAPER_RELEASE)(PVOID);
#else
typedef VOID (*EXT2_REAPER_RELEASE)(PVOID);
#endif
typedef struct _EXT2_REAPER {
PETHREAD Thread;
KEVENT Engine;
KEVENT Wait;
EXT2_REAPER_RELEASE Free;
ULONG Flags;
} EXT2_REAPER, *PEXT2_REAPER;
#define EXT2_REAPER_FLAG_STOP (1 << 0)
typedef struct _EXT2_GLOBAL {
/* Identifier for this structure */
EXT2_IDENTIFIER Identifier;
/* Syncronization primitive for this structure */
ERESOURCE Resource;
/* Global flags for the driver: I put it since
FastIoDispatch isn't 8bytes aligned. */
ULONG Flags;
/* Table of pointers to the fast I/O entry points */
FAST_IO_DISPATCH FastIoDispatch;
/* Filter callbacks */
FS_FILTER_CALLBACKS FilterCallbacks;
/* Table of pointers to the Cache Manager callbacks */
CACHE_MANAGER_CALLBACKS CacheManagerCallbacks;
CACHE_MANAGER_CALLBACKS CacheManagerNoOpCallbacks;
/* Pointer to the driver object */
PDRIVER_OBJECT DriverObject;
/* Pointer to the disk device object */
PDEVICE_OBJECT DiskdevObject;
/* Pointer to the cdrom device object */
PDEVICE_OBJECT CdromdevObject;
/* List of mounted volumes */
LIST_ENTRY VcbList;
/* Cleaning thread related: resource cleaner */
EXT2_REAPER FcbReaper;
EXT2_REAPER McbReaper;
EXT2_REAPER bhReaper;
/* Look Aside table of IRP_CONTEXT, FCB, MCB, CCB */
NPAGED_LOOKASIDE_LIST Ext2IrpContextLookasideList;
NPAGED_LOOKASIDE_LIST Ext2FcbLookasideList;
NPAGED_LOOKASIDE_LIST Ext2CcbLookasideList;
NPAGED_LOOKASIDE_LIST Ext2McbLookasideList;
NPAGED_LOOKASIDE_LIST Ext2ExtLookasideList;
NPAGED_LOOKASIDE_LIST Ext2DentryLookasideList;
USHORT MaxDepth;
/* User specified global codepage name */
struct {
WCHAR PageName[CODEPAGE_MAXLEN];
UCHAR AnsiName[CODEPAGE_MAXLEN];
struct nls_table * PageTable;
} Codepage;
/* global hiding patterns */
WCHAR wHidingPrefix[HIDINGPAT_LEN];
WCHAR wHidingSuffix[HIDINGPAT_LEN];
BOOLEAN bHidingPrefix;
CHAR sHidingPrefix[HIDINGPAT_LEN];
BOOLEAN bHidingSuffix;
CHAR sHidingSuffix[HIDINGPAT_LEN];
/* Registery path */
UNICODE_STRING RegistryPath;
/* global memory and i/o statistics and memory allocations
of various sturctures */
EXT2_PERF_STATISTICS_V2 PerfStat;
} EXT2_GLOBAL, *PEXT2_GLOBAL;
//
// Flags for EXT2_GLOBAL_DATA
//
#define EXT2_UNLOAD_PENDING 0x00000001
#define EXT2_SUPPORT_WRITING 0x00000002
#define EXT3_FORCE_WRITING 0x00000004
#define EXT2_CHECKING_BITMAP 0x00000008
#define EXT2_AUTO_MOUNT 0x00000010
//
// Glboal Ext2Fsd Memory Block
//
extern PEXT2_GLOBAL Ext2Global;
//
// memory allocation statistics
//
#define INC_MEM_COUNT(_i, _p, _s) do { ASSERT(_p); Ext2TraceMemory(TRUE, (int) (_i), (PVOID)(_p), (LONG)(_s)); } while(0)
#define DEC_MEM_COUNT(_i, _p, _s) do { ASSERT(_p); Ext2TraceMemory(FALSE, (int) (_i), (PVOID)(_p), (LONG)(_s)); } while(0)
#define INC_IRP_COUNT(IrpContext) Ext2TraceIrpContext(TRUE, (IrpContext))
#define DEC_IRP_COUNT(IrpContext) Ext2TraceIrpContext(FALSE, (IrpContext))
//
// Driver Extension define
//
#define IsExt2FsDevice(DO) ((DO == Ext2Global->DiskdevObject) || \
(DO == Ext2Global->CdromdevObject) )
#ifdef _WIN2K_TARGET_
#define FSRTL_ADVANCED_FCB_HEADER FSRTL_COMMON_FCB_HEADER
#endif
typedef struct _EXT2_FCBVCB {
// Command header for Vcb and Fcb
FSRTL_ADVANCED_FCB_HEADER Header;
#ifndef _WIN2K_TARGET_
FAST_MUTEX Mutex;
#endif
// Ext2Fsd identifier
EXT2_IDENTIFIER Identifier;
// Locking resources
ERESOURCE MainResource;
ERESOURCE PagingIoResource;
} EXT2_FCBVCB, *PEXT2_FCBVCB;
//
// EXT2_VCB Volume Control Block
//
// Data that represents a mounted logical volume
// It is allocated as the device extension of the volume device object
//
typedef struct _EXT2_VCB {
/* Common header */
EXT2_FCBVCB;
// Resource for metadata (inode)
ERESOURCE MetaInode;
// Resource for metadata (block)
ERESOURCE MetaBlock;
// Resource for Mcb (Meta data control block)
ERESOURCE McbLock;
// List of FCBs for open files on this volume
ERESOURCE FcbLock;
LIST_ENTRY FcbList;
ULONG FcbCount;
// Mcb list
ULONG NumOfMcb;
LIST_ENTRY McbList;
// Entry of Mcb Tree (Root Node)
PEXT2_MCB McbTree;
// Link list to Global
LIST_ENTRY Next;
// Section objects
SECTION_OBJECT_POINTERS SectionObject;
// Dirty Mcbs of modifications for volume stream
LARGE_MCB Extents;
// Share Access for the file object
SHARE_ACCESS ShareAccess;
// Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLOSE
// for both files on this volume and open instances of the
// volume itself.
ULONG ReferenceCount; /* total ref count */
ULONG OpenHandleCount; /* all handles */
ULONG OpenVolumeCount; /* volume handle */
// Disk change count
ULONG ChangeCount;
// Pointer to the VPB in the target device object
PVPB Vpb;
PVPB Vpb2;
// The FileObject of Volume used to lock the volume
PFILE_OBJECT LockFile;
// List of IRPs pending on directory change notify requests
LIST_ENTRY NotifyList;
// Pointer to syncronization primitive for this list
PNOTIFY_SYNC NotifySync;
// This volumes device object
PDEVICE_OBJECT DeviceObject;
// The physical device object (the disk)
PDEVICE_OBJECT TargetDeviceObject;
// The physical device object (the disk)
PDEVICE_OBJECT RealDevice;
// Information about the physical device object
DISK_GEOMETRY DiskGeometry;
PARTITION_INFORMATION PartitionInformation;
BOOLEAN IsExt3fs;
PEXT2_SUPER_BLOCK SuperBlock;
// Block / Cluster size
ULONG BlockSize;
// Sector size in bits
ULONG SectorBits;
// Minimal i/o size: min(PageSize, BlockSize)
ULONGLONG IoUnitSize;
// Bits of aligned size
ULONG IoUnitBits;
// Inode size
ULONG InodeSize;
// Inode lookaside list
NPAGED_LOOKASIDE_LIST InodeLookasideList;
// Flags for the volume
ULONG Flags;
// Streaming File Object
PFILE_OBJECT Volume;
// User specified codepage name per volume
struct {
UCHAR AnsiName[CODEPAGE_MAXLEN];
struct nls_table * PageTable;
} Codepage;
/* patterns to hiding files */
BOOLEAN bHidingPrefix;
CHAR sHidingPrefix[HIDINGPAT_LEN];
BOOLEAN bHidingSuffix;
CHAR sHidingSuffix[HIDINGPAT_LEN];
/* User to impersanate */
uid_t uid;
gid_t gid;
/* User to act as */
uid_t euid;
gid_t egid;
/* mountpoint: symlink to DesDevices */
UCHAR DrvLetter;
struct block_device bd;
struct super_block sb;
struct ext3_sb_info sbi;
/* Maximum file size in blocks ... */
ULONG max_blocks_per_layer[EXT2_BLOCK_TYPES];
ULONG max_data_blocks;
loff_t max_bitmap_bytes;
loff_t max_bytes;
} EXT2_VCB, *PEXT2_VCB;
//
// Flags for EXT2_VCB
//
#define VCB_INITIALIZED 0x00000001
#define VCB_VOLUME_LOCKED 0x00000002
#define VCB_MOUNTED 0x00000004
#define VCB_DISMOUNT_PENDING 0x00000008
#define VCB_NEW_VPB 0x00000010
#define VCB_BEING_CLOSED 0x00000020
#define VCB_USER_IDS 0x00000040 /* uid/gid specified by user */
#define VCB_USER_EIDS 0x00000080 /* euid/egid specified by user */
#define VCB_GD_LOADED 0x00000100 /* group desc loaded */
#define VCB_BEING_DROPPED 0x00002000
#define VCB_FORCE_WRITING 0x00004000
#define VCB_DEVICE_REMOVED 0x00008000
#define VCB_JOURNAL_RECOVER 0x00080000
#define VCB_ARRIVAL_NOTIFIED 0x00800000
#define VCB_RO_COMPAT_READ_ONLY 0x01000000
#define VCB_READ_ONLY 0x08000000
#define VCB_WRITE_PROTECTED 0x10000000
#define VCB_FLOPPY_DISK 0x20000000
#define VCB_REMOVAL_PREVENTED 0x40000000
#define VCB_REMOVABLE_MEDIA 0x80000000
#define IsVcbInited(Vcb) (IsFlagOn((Vcb)->Flags, VCB_INITIALIZED))
#define IsMounted(Vcb) (IsFlagOn((Vcb)->Flags, VCB_MOUNTED))
#define IsDispending(Vcb) (IsFlagOn((Vcb)->Flags, VCB_DISMOUNT_PENDING))
#define IsVcbReadOnly(Vcb) (IsFlagOn((Vcb)->Flags, VCB_READ_ONLY) || \
IsFlagOn((Vcb)->Flags, VCB_RO_COMPAT_READ_ONLY) || \
IsFlagOn((Vcb)->Flags, VCB_WRITE_PROTECTED))
#define IsExt3ForceWrite() (IsFlagOn(Ext2Global->Flags, EXT3_FORCE_WRITING))
#define IsVcbForceWrite(Vcb) (IsFlagOn((Vcb)->Flags, VCB_FORCE_WRITING))
#define CanIWrite(Vcb) (IsExt3ForceWrite() || (!IsVcbReadOnly(Vcb) && IsVcbForceWrite(Vcb)))
#define IsLazyWriter(Fcb) ((Fcb)->LazyWriterThread == PsGetCurrentThread())
//
// EXT2_FCB File Control Block
//
// Data that represents an open file
// There is a single instance of the FCB for every open file
//
typedef struct _EXT2_FCB {
/* Common header */
EXT2_FCBVCB;
// List of FCBs for this volume
LIST_ENTRY Next;
LARGE_INTEGER TsDrop; /* drop time */
SECTION_OBJECT_POINTERS SectionObject;
// Share Access for the file object
SHARE_ACCESS ShareAccess;
// List of byte-range locks for this file
FILE_LOCK FileLockAnchor;
// oplock information management structure
OPLOCK Oplock;
// Lazy writer thread context
PETHREAD LazyWriterThread;
// Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP
ULONG OpenHandleCount;
// Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLOSE
ULONG ReferenceCount;
// Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP
// But only for Files with FO_NO_INTERMEDIATE_BUFFERING flag
ULONG NonCachedOpenCount;
// Flags for the FCB
ULONG Flags;
// Pointer to the inode
struct inode *Inode;
// Vcb
PEXT2_VCB Vcb;
// Mcb Node ...
PEXT2_MCB Mcb;
} EXT2_FCB, *PEXT2_FCB;
//
// Flags for EXT2_FCB
//
#define FCB_FROM_POOL 0x00000001
#define FCB_PAGE_FILE 0x00000002
#define FCB_FILE_MODIFIED 0x00000020
#define FCB_ALLOC_IN_CREATE 0x00000080
#define FCB_ALLOC_IN_WRITE 0x00000100
#define FCB_ALLOC_IN_SETINFO 0x00000200
#define FCB_DELETE_PENDING 0x80000000
//
// Mcb Node
//
struct _EXT2_MCB {
// Identifier for this structure
EXT2_IDENTIFIER Identifier;
// Flags
ULONG Flags;
// Link List Info
PEXT2_MCB Parent; // Parent
PEXT2_MCB Next; // Siblings
union {
PEXT2_MCB Child; // Children Mcb nodes
PEXT2_MCB Target; // Target Mcb of symlink
};
// Mcb Node Info
// -> Fcb
PEXT2_FCB Fcb;
// Short name
UNICODE_STRING ShortName;
// Full name with path
UNICODE_STRING FullName;
// File attribute
ULONG FileAttr;
// reference count
ULONG Refercount;
// Extents zone
LARGE_MCB Extents;
// Metablocks
LARGE_MCB MetaExts;
// Time stamps
LARGE_INTEGER CreationTime;
LARGE_INTEGER LastWriteTime;
LARGE_INTEGER ChangeTime;
LARGE_INTEGER LastAccessTime;
// List Link to Vcb->McbList
LIST_ENTRY Link;
struct inode Inode;
struct dentry *de;
};
//
// Flags for MCB
//
#define MCB_FROM_POOL 0x00000001
#define MCB_VCB_LINK 0x00000002
#define MCB_ENTRY_TREE 0x00000004
#define MCB_FILE_DELETED 0x00000008
#define MCB_ZONE_INITED 0x20000000
#define MCB_TYPE_SPECIAL 0x40000000 /* unresolved symlink + device node */
#define MCB_TYPE_SYMLINK 0x80000000
#define IsMcbUsed(Mcb) ((Mcb)->Refercount > 0)
#define IsMcbSymLink(Mcb) IsFlagOn((Mcb)->Flags, MCB_TYPE_SYMLINK)
#define IsZoneInited(Mcb) IsFlagOn((Mcb)->Flags, MCB_ZONE_INITED)
#define IsMcbSpecialFile(Mcb) IsFlagOn((Mcb)->Flags, MCB_TYPE_SPECIAL)
#define IsMcbRoot(Mcb) ((Mcb)->Inode.i_ino == EXT2_ROOT_INO)
#define IsMcbReadonly(Mcb) IsFlagOn((Mcb)->FileAttr, FILE_ATTRIBUTE_READONLY)
#define IsMcbDirectory(Mcb) IsFlagOn((Mcb)->FileAttr, FILE_ATTRIBUTE_DIRECTORY)
#define IsFileDeleted(Mcb) IsFlagOn((Mcb)->Flags, MCB_FILE_DELETED)
#define IsLinkInvalid(Mcb) (IsMcbSymLink(Mcb) && IsFileDeleted(Mcb->Target))
/*
* routines for reference count management
*/
#define Ext2ReferXcb(_C) InterlockedIncrement(_C)
#define Ext2DerefXcb(_C) DEC_OBJ_CNT(_C)
#ifdef __REACTOS__
static
#endif
__inline ULONG DEC_OBJ_CNT(PULONG _C) {
if (*_C <= 0) {
DbgBreak();
}
return InterlockedDecrement(_C);
}
#if EXT2_DEBUG
VOID
Ext2TraceMcb(PCHAR fn, USHORT lc, USHORT add, PEXT2_MCB Mcb);
#define Ext2ReferMcb(Mcb) Ext2TraceMcb(__FUNCTION__, __LINE__, TRUE, Mcb)
#define Ext2DerefMcb(Mcb) Ext2TraceMcb(__FUNCTION__, __LINE__, FALSE, Mcb)
#else
#define Ext2ReferMcb(Mcb) Ext2ReferXcb(&Mcb->Refercount)
#define Ext2DerefMcb(Mcb) Ext2DerefXcb(&Mcb->Refercount)
#endif
//
// EXT2_CCB Context Control Block
//
// Data that represents one instance of an open file
// There is one instance of the CCB for every instance of an open file
//
typedef struct _EXT2_CCB {
// Identifier for this structure
EXT2_IDENTIFIER Identifier;
// Flags
ULONG Flags;
// Mcb of it's symbol link
PEXT2_MCB SymLink;
// State that may need to be maintained
UNICODE_STRING DirectorySearchPattern;
/* Open handle control block */
struct file filp;
/* The EA index we are on */
ULONG EaIndex;
} EXT2_CCB, *PEXT2_CCB;
//
// Flags for CCB
//
#define CCB_FROM_POOL 0x00000001
#define CCB_VOLUME_DASD_PURGE 0x00000002
#define CCB_LAST_WRITE_UPDATED 0x00000004
#define CCB_OPEN_REPARSE_POINT 0x00000008
#define CCB_DELETE_ON_CLOSE 0x00000010
#define CCB_ALLOW_EXTENDED_DASD_IO 0x80000000
//
// EXT2_IRP_CONTEXT
//
// Used to pass information about a request between the drivers functions
//
typedef struct ext2_icb {
// Identifier for this structure
EXT2_IDENTIFIER Identifier;
// Pointer to the IRP this request describes
PIRP Irp;
// Flags
ULONG Flags;
// The major and minor function code for the request
UCHAR MajorFunction;
UCHAR MinorFunction;
// The device object
PDEVICE_OBJECT DeviceObject;
// The real device object
PDEVICE_OBJECT RealDevice;
// The file object
PFILE_OBJECT FileObject;
PEXT2_FCB Fcb;
PEXT2_CCB Ccb;
// If the request is top level
BOOLEAN IsTopLevel;
// Used if the request needs to be queued for later processing
WORK_QUEUE_ITEM WorkQueueItem;
// If an exception is currently in progress
BOOLEAN ExceptionInProgress;
// The exception code when an exception is in progress
NTSTATUS ExceptionCode;
} EXT2_IRP_CONTEXT, *PEXT2_IRP_CONTEXT;
#define IRP_CONTEXT_FLAG_FROM_POOL (0x00000001)
#define IRP_CONTEXT_FLAG_WAIT (0x00000002)
#define IRP_CONTEXT_FLAG_WRITE_THROUGH (0x00000004)
#define IRP_CONTEXT_FLAG_FLOPPY (0x00000008)
#define IRP_CONTEXT_FLAG_DISABLE_POPUPS (0x00000020)
#define IRP_CONTEXT_FLAG_DEFERRED (0x00000040)
#define IRP_CONTEXT_FLAG_VERIFY_READ (0x00000080)
#define IRP_CONTEXT_STACK_IO_CONTEXT (0x00000100)
#define IRP_CONTEXT_FLAG_REQUEUED (0x00000200)
#define IRP_CONTEXT_FLAG_USER_IO (0x00000400)
#define IRP_CONTEXT_FLAG_DELAY_CLOSE (0x00000800)
#define IRP_CONTEXT_FLAG_FILE_BUSY (0x00001000)
#define Ext2CanIWait() (!IrpContext || IsFlagOn(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT))
//
// EXT2_ALLOC_HEADER
//
// In the checked version of the driver this header is put in the beginning of
// every memory allocation
//
typedef struct _EXT2_ALLOC_HEADER {
EXT2_IDENTIFIER Identifier;
} EXT2_ALLOC_HEADER, *PEXT2_ALLOC_HEADER;
typedef struct _FCB_LIST_ENTRY {
PEXT2_FCB Fcb;
LIST_ENTRY Next;
} FCB_LIST_ENTRY, *PFCB_LIST_ENTRY;
// Block Description List
typedef struct _EXT2_EXTENT {
LONGLONG Lba;
ULONG Offset;
ULONG Length;
PIRP Irp;
struct _EXT2_EXTENT * Next;
} EXT2_EXTENT, *PEXT2_EXTENT;
/* FUNCTIONS DECLARATION *****************************************************/
// Include this so we don't need the latest WDK to build the driver.
#ifndef FSCTL_GET_RETRIEVAL_POINTER_BASE
#define FSCTL_GET_RETRIEVAL_POINTER_BASE CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 141, METHOD_BUFFERED, FILE_ANY_ACCESS) // RETRIEVAL_POINTER_BASE
#endif
#ifndef FILE_SUPPORTS_EXTENDED_ATTRIBUTES
#define FILE_SUPPORTS_EXTENDED_ATTRIBUTES 0x00800000
#endif
//
// The following macro is used to determine if an FSD thread can block
// for I/O or wait for a resource. It returns TRUE if the thread can
// block and FALSE otherwise. This attribute can then be used to call
// the FSD & FSP common work routine with the proper wait value.
//
#define CanExt2Wait(IRP) IoIsOperationSynchronous(Irp)
//
// memory allocation statistics
//
#ifdef __REACTOS__
static
#endif
__inline
VOID
Ext2TraceMemory(BOOLEAN _n, int _i, PVOID _p, LONG _s)
{
if (_n) {
InterlockedIncrement(&Ext2Global->PerfStat.Current.Slot[_i]);
InterlockedIncrement(&Ext2Global->PerfStat.Total.Slot[_i]);
InterlockedExchangeAdd(&Ext2Global->PerfStat.Size.Slot[_i], _s);
} else {
InterlockedDecrement(&Ext2Global->PerfStat.Current.Slot[_i]);
InterlockedExchangeAdd(&Ext2Global->PerfStat.Size.Slot[_i], -1 * _s);
}
}
#ifdef __REACTOS__
static
#endif
__inline
VOID
Ext2TraceIrpContext(BOOLEAN _n, PEXT2_IRP_CONTEXT IrpContext)
{
if (_n) {
INC_MEM_COUNT(PS_IRP_CONTEXT, IrpContext, sizeof(EXT2_IRP_CONTEXT));
InterlockedIncrement(&(Ext2Global->PerfStat.Irps[IrpContext->MajorFunction].Current));
} else {
DEC_MEM_COUNT(PS_IRP_CONTEXT, IrpContext, sizeof(EXT2_IRP_CONTEXT));
InterlockedIncrement(&Ext2Global->PerfStat.Irps[IrpContext->MajorFunction].Processed);
InterlockedDecrement(&Ext2Global->PerfStat.Irps[IrpContext->MajorFunction].Current);
}
}
typedef struct _EXT2_FILLDIR_CONTEXT {
PEXT2_IRP_CONTEXT efc_irp;
PUCHAR efc_buf;
ULONG efc_size;
ULONG efc_start;
ULONG efc_prev;
NTSTATUS efc_status;
FILE_INFORMATION_CLASS efc_fi;
BOOLEAN efc_single;
} EXT2_FILLDIR_CONTEXT, *PEXT2_FILLDIR_CONTEXT;
//
// Access.c
//
int Ext2CheckInodeAccess(PEXT2_VCB Vcb, struct inode *in, int attempt);
int Ext2CheckFileAccess (PEXT2_VCB Vcb, PEXT2_MCB Mcb, int attempt);
//
// Block.c
//
PMDL
Ext2CreateMdl (
IN PVOID Buffer,
IN ULONG Length,
IN LOCK_OPERATION Operation
);
VOID
Ext2DestroyMdl (IN PMDL Mdl);
NTSTATUS
Ext2LockUserBuffer (
IN PIRP Irp,
IN ULONG Length,
IN LOCK_OPERATION Operation);
PVOID
Ext2GetUserBuffer (IN PIRP Irp);
NTSTATUS
Ext2ReadWriteBlocks(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_EXTENT Extent,
IN ULONG Length
);
NTSTATUS
Ext2ReadSync(
IN PEXT2_VCB Vcb,
IN ULONGLONG Offset,
IN ULONG Length,
OUT PVOID Buffer,
IN BOOLEAN bVerify );
NTSTATUS
Ext2ReadDisk(
IN PEXT2_VCB Vcb,
IN ULONGLONG Offset,
IN ULONG Size,
IN PVOID Buffer,
IN BOOLEAN bVerify );
NTSTATUS
Ext2DiskIoControl (
IN PDEVICE_OBJECT DeviceOjbect,
IN ULONG IoctlCode,
IN PVOID InputBuffer,
IN ULONG InputBufferSize,
IN OUT PVOID OutputBuffer,
IN OUT PULONG OutputBufferSize );
VOID
Ext2MediaEjectControl (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN BOOLEAN bPrevent );
NTSTATUS
Ext2DiskShutDown(PEXT2_VCB Vcb);
//
// Cleanup.c
//
NTSTATUS
Ext2Cleanup (IN PEXT2_IRP_CONTEXT IrpContext);
//
// Close.c
//
NTSTATUS
Ext2Close (IN PEXT2_IRP_CONTEXT IrpContext);
VOID
Ext2QueueCloseRequest (IN PEXT2_IRP_CONTEXT IrpContext);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2DeQueueCloseRequest (IN PVOID Context);
//
// Cmcb.c
//
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2AcquireForLazyWrite (
IN PVOID Context,
IN BOOLEAN Wait );
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2ReleaseFromLazyWrite (IN PVOID Context);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2AcquireForReadAhead (
IN PVOID Context,
IN BOOLEAN Wait );
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2ReleaseFromReadAhead (IN PVOID Context);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2NoOpAcquire (
IN PVOID Fcb,
IN BOOLEAN Wait );
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2NoOpRelease (IN PVOID Fcb);
//
// Create.c
//
BOOLEAN
Ext2IsNameValid(PUNICODE_STRING FileName);
NTSTATUS
Ext2FollowLink (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Parent,
IN PEXT2_MCB Mcb,
IN ULONG Linkdep
);
NTSTATUS
Ext2ScanDir (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Parent,
IN PUNICODE_STRING FileName,
OUT PULONG Inode,
struct dentry **dentry
);
BOOLEAN
Ext2IsSpecialSystemFile(
IN PUNICODE_STRING FileName,
IN BOOLEAN bDirectory
);
#define EXT2_LOOKUP_FLAG_MASK (0xFF00000)
#define EXT2_LOOKUP_NOT_FOLLOW (0x8000000)
NTSTATUS
Ext2LookupFile (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PUNICODE_STRING FullName,
IN PEXT2_MCB Parent,
OUT PEXT2_MCB * Ext2Mcb,
IN ULONG Linkdep
);
NTSTATUS
Ext2CreateFile(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
OUT PBOOLEAN OpPostIrp
);
NTSTATUS
Ext2CreateVolume(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb );
NTSTATUS
Ext2Create (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2CreateInode(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_FCB pParentFcb,
IN ULONG Type,
IN ULONG FileAttr,
IN PUNICODE_STRING FileName);
NTSTATUS
Ext2SupersedeOrOverWriteFile(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PFILE_OBJECT FileObject,
IN PEXT2_VCB Vcb,
IN PEXT2_FCB Fcb,
IN PLARGE_INTEGER AllocationSize,
IN ULONG Disposition
);
//
// Debug.c
//
/* debug levels */
#define DL_NVR 0
#define DL_VIT 0x00000001
#define DL_ERR 0x00000002
#define DL_DBG 0x00000004
#define DL_INF 0x00000008
#define DL_FUN 0x00000010
#define DL_LOW 0x00000020
#define DL_REN 0x00000040 /* renaming operation */
#define DL_RES 0x00000080 /* entry reference managment */
#define DL_BLK 0x00000100 /* data block allocation / free */
#define DL_CP 0x00000200 /* code pages (create, querydir) */
#define DL_EXT 0x00000400 /* mcb extents */
#define DL_MAP 0x00000800 /* retrieval points */
#define DL_JNL 0x00001000 /* dump journal operations */
#define DL_HTI 0x00002000 /* htree index */
#define DL_WRN 0x00004000 /* warning */
#define DL_BH 0x00008000 /* buffer head */
#define DL_PNP 0x00010000 /* pnp */
#define DL_IO 0x00020000 /* file i/o */
#define DL_DEFAULT (DL_ERR|DL_VIT)
#if EXT2_DEBUG
extern ULONG DebugFilter;
VOID
__cdecl
Ext2NiPrintf(
PCHAR DebugMessage,
...
);
#define DEBUG(_DL, arg) do {if ((_DL) & DebugFilter) Ext2Printf arg;} while(0)
#define DEBUGNI(_DL, arg) do {if ((_DL) & DebugFilter) Ext2NiPrintf arg;} while(0)
#define Ext2CompleteRequest(Irp, bPrint, PriorityBoost) \
Ext2DbgPrintComplete(Irp, bPrint); \
IoCompleteRequest(Irp, PriorityBoost)
#else
#define DEBUG(_DL, arg) do {if ((_DL) & DL_ERR) DbgPrint arg;} while(0)
#define Ext2CompleteRequest(Irp, bPrint, PriorityBoost) \
IoCompleteRequest(Irp, PriorityBoost)
#endif // EXT2_DEBUG
VOID
__cdecl
Ext2Printf(
PCHAR DebugMessage,
...
);
extern ULONG ProcessNameOffset;
#define Ext2GetCurrentProcessName() ( \
(PUCHAR) PsGetCurrentProcess() + ProcessNameOffset \
)
ULONG
Ext2GetProcessNameOffset (VOID);
VOID
Ext2DbgPrintCall (
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp );
VOID
Ext2DbgPrintComplete (
IN PIRP Irp,
IN BOOLEAN bPrint
);
PUCHAR
Ext2NtStatusToString (IN NTSTATUS Status );
PVOID Ext2AllocatePool(
IN POOL_TYPE PoolType,
IN SIZE_T NumberOfBytes,
IN ULONG Tag
);
VOID
Ext2FreePool(
IN PVOID P,
IN ULONG Tag
);
//
// Devctl.c
//
NTSTATUS
Ext2ProcessGlobalProperty(
IN PDEVICE_OBJECT DeviceObject,
IN PEXT2_VOLUME_PROPERTY3 Property,
IN ULONG Length
);
NTSTATUS
Ext2ProcessVolumeProperty(
IN PEXT2_VCB Vcb,
IN PEXT2_VOLUME_PROPERTY3 Property,
IN ULONG Length
);
NTSTATUS
Ext2ProcessUserProperty(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VOLUME_PROPERTY3 Property,
IN ULONG Length
);
NTSTATUS
Ex2ProcessUserPerfStat(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_QUERY_PERFSTAT QueryPerf,
IN ULONG Length
);
NTSTATUS
Ex2ProcessMountPoint(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_MOUNT_POINT MountPoint,
IN ULONG Length
);
NTSTATUS
Ext2DeviceControlNormal (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2PrepareToUnload (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2DeviceControl (IN PEXT2_IRP_CONTEXT IrpContext);
//
// Dirctl.c
//
ULONG
Ext2GetInfoLength(IN FILE_INFORMATION_CLASS FileInformationClass);
NTSTATUS
Ext2ProcessEntry(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_FCB Dcb,
IN FILE_INFORMATION_CLASS FileInformationClass,
IN ULONG in,
IN PVOID Buffer,
IN ULONG UsedLength,
IN ULONG Length,
IN ULONG FileIndex,
IN PUNICODE_STRING pName,
OUT PULONG EntrySize,
IN BOOLEAN Single
);
BOOLEAN
Ext2IsWearingCloak(
IN PEXT2_VCB Vcb,
IN POEM_STRING OeName
);
NTSTATUS Ext2QueryDirectory (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2NotifyChangeDirectory (
IN PEXT2_IRP_CONTEXT IrpContext
);
VOID
Ext2NotifyReportChange (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Filter,
IN ULONG Action
);
NTSTATUS
Ext2DirectoryControl (IN PEXT2_IRP_CONTEXT IrpContext);
BOOLEAN
Ext2IsDirectoryEmpty (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb
);
//
// Dispatch.c
//
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2OplockComplete (
IN PVOID Context,
IN PIRP Irp
);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2LockIrp (
IN PVOID Context,
IN PIRP Irp
);
NTSTATUS
Ext2QueueRequest (IN PEXT2_IRP_CONTEXT IrpContext);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2DeQueueRequest (IN PVOID Context);
NTSTATUS
Ext2DispatchRequest (IN PEXT2_IRP_CONTEXT IrpContext);
#ifdef __REACTOS__
NTSTATUS NTAPI
#else
NTSTATUS
#endif
Ext2BuildRequest (
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp
);
//
// ea.c
//
NTSTATUS
Ext2QueryEa(
IN PEXT2_IRP_CONTEXT IrpContext
);
BOOLEAN
Ext2IsEaNameValid(
IN OEM_STRING Name
);
NTSTATUS
Ext2SetEa(
IN PEXT2_IRP_CONTEXT IrpContext
);
//
// Except.c
//
NTSTATUS
Ext2ExceptionFilter (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXCEPTION_POINTERS ExceptionPointer
);
NTSTATUS
Ext2ExceptionHandler (IN PEXT2_IRP_CONTEXT IrpContext);
//
// Extents.c
//
NTSTATUS
Ext2MapExtent(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Index,
IN BOOLEAN Alloc,
OUT PULONG Block,
OUT PULONG Number
);
NTSTATUS
Ext2ExpandExtent(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_MCB Mcb,
ULONG Start,
ULONG End,
PLARGE_INTEGER Size
);
NTSTATUS
Ext2TruncateExtent(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_MCB Mcb,
PLARGE_INTEGER Size
);
//
// generic.c
//
static inline ext3_fsblk_t ext3_blocks_count(struct ext3_super_block *es)
{
return ((ext3_fsblk_t)le32_to_cpu(es->s_blocks_count_hi) << 32) |
le32_to_cpu(es->s_blocks_count);
}
static inline ext3_fsblk_t ext3_r_blocks_count(struct ext3_super_block *es)
{
return ((ext3_fsblk_t)le32_to_cpu(es->s_r_blocks_count_hi) << 32) |
le32_to_cpu(es->s_r_blocks_count);
}
static inline ext3_fsblk_t ext3_free_blocks_count(struct ext3_super_block *es)
{
return ((ext3_fsblk_t)le32_to_cpu(es->s_free_blocks_count_hi) << 32) |
le32_to_cpu(es->s_free_blocks_count);
}
static inline void ext3_blocks_count_set(struct ext3_super_block *es,
ext3_fsblk_t blk)
{
es->s_blocks_count = cpu_to_le32((u32)blk);
es->s_blocks_count_hi = cpu_to_le32(blk >> 32);
}
static inline void ext3_free_blocks_count_set(struct ext3_super_block *es,
ext3_fsblk_t blk)
{
es->s_free_blocks_count = cpu_to_le32((u32)blk);
es->s_free_blocks_count_hi = cpu_to_le32(blk >> 32);
}
static inline void ext3_r_blocks_count_set(struct ext3_super_block *es,
ext3_fsblk_t blk)
{
es->s_r_blocks_count = cpu_to_le32((u32)blk);
es->s_r_blocks_count_hi = cpu_to_le32(blk >> 32);
}
blkcnt_t ext3_inode_blocks(struct ext3_inode *raw_inode,
struct inode *inode);
int ext3_inode_blocks_set(struct ext3_inode *raw_inode,
struct inode * inode);
ext4_fsblk_t ext4_block_bitmap(struct super_block *sb,
struct ext4_group_desc *bg);
ext4_fsblk_t ext4_inode_bitmap(struct super_block *sb,
struct ext4_group_desc *bg);
ext4_fsblk_t ext4_inode_table(struct super_block *sb,
struct ext4_group_desc *bg);
__u32 ext4_free_blks_count(struct super_block *sb,
struct ext4_group_desc *bg);
__u32 ext4_free_inodes_count(struct super_block *sb,
struct ext4_group_desc *bg);
__u32 ext4_used_dirs_count(struct super_block *sb,
struct ext4_group_desc *bg);
__u32 ext4_itable_unused_count(struct super_block *sb,
struct ext4_group_desc *bg);
void ext4_block_bitmap_set(struct super_block *sb,
struct ext4_group_desc *bg, ext4_fsblk_t blk);
void ext4_inode_bitmap_set(struct super_block *sb,
struct ext4_group_desc *bg, ext4_fsblk_t blk);
void ext4_inode_table_set(struct super_block *sb,
struct ext4_group_desc *bg, ext4_fsblk_t blk);
void ext4_free_blks_set(struct super_block *sb,
struct ext4_group_desc *bg, __u32 count);
void ext4_free_inodes_set(struct super_block *sb,
struct ext4_group_desc *bg, __u32 count);
void ext4_used_dirs_set(struct super_block *sb,
struct ext4_group_desc *bg, __u32 count);
void ext4_itable_unused_set(struct super_block *sb,
struct ext4_group_desc *bg, __u32 count);
int ext3_bg_has_super(struct super_block *sb, ext3_group_t group);
unsigned long ext4_bg_num_gdb(struct super_block *sb, ext4_group_t group);
unsigned ext4_init_inode_bitmap(struct super_block *sb, struct buffer_head *bh,
ext4_group_t block_group,
struct ext4_group_desc *gdp);
unsigned ext4_init_block_bitmap(struct super_block *sb, struct buffer_head *bh,
ext4_group_t block_group, struct ext4_group_desc *gdp);
struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
ext4_group_t block_group, struct buffer_head **bh);
ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb);
unsigned long ext4_count_free_inodes(struct super_block *sb);
int ext4_check_descriptors(struct super_block *sb);
NTSTATUS
Ext2LoadSuper(
IN PEXT2_VCB Vcb,
IN BOOLEAN bVerify,
OUT PEXT2_SUPER_BLOCK * Sb
);
BOOLEAN
Ext2SaveSuper(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb
);
BOOLEAN
Ext2RefreshSuper(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb
);
BOOLEAN
Ext2LoadGroupBH(IN PEXT2_VCB Vcb);
BOOLEAN
Ext2LoadGroup(IN PEXT2_VCB Vcb);
VOID
Ext2DropGroupBH(IN PEXT2_VCB Vcb);
VOID
Ext2PutGroup(IN PEXT2_VCB Vcb);
VOID
Ext2DropBH(IN PEXT2_VCB Vcb);
NTSTATUS
Ext2FlushVcb(IN PEXT2_VCB Vcb);
BOOLEAN
Ext2SaveGroup(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN ULONG Group
);
BOOLEAN
Ext2RefreshGroup(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb
);
BOOLEAN
Ext2GetInodeLba (
IN PEXT2_VCB Vcb,
IN ULONG inode,
OUT PLONGLONG offset
);
BOOLEAN
Ext2LoadInode (
IN PEXT2_VCB Vcb,
IN struct inode *Inode
);
BOOLEAN
Ext2ClearInode (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN ULONG inode
);
BOOLEAN
Ext2SaveInode (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN struct inode *Inode
);
BOOLEAN
Ext2LoadInodeXattr(IN PEXT2_VCB Vcb,
IN struct inode *Inode,
IN PEXT2_INODE InodeXattr);
BOOLEAN
Ext2SaveInodeXattr(IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN struct inode *Inode,
IN PEXT2_INODE InodeXattr);
BOOLEAN
Ext2LoadBlock (
IN PEXT2_VCB Vcb,
IN ULONG dwBlk,
IN PVOID Buffer
);
BOOLEAN
Ext2SaveBlock (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN ULONG dwBlk,
IN PVOID Buf
);
BOOLEAN
Ext2LoadBuffer(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN LONGLONG Offset,
IN ULONG Size,
IN PVOID Buf
);
BOOLEAN
Ext2ZeroBuffer(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN LONGLONG Offset,
IN ULONG Size
);
BOOLEAN
Ext2SaveBuffer(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN LONGLONG Offset,
IN ULONG Size,
IN PVOID Buf
);
NTSTATUS
Ext2GetBlock(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Base,
IN ULONG Layer,
IN ULONG Start,
IN ULONG SizeArray,
IN PULONG BlockArray,
IN BOOLEAN bAlloc,
IN OUT PULONG Hint,
OUT PULONG Block,
OUT PULONG Number
);
NTSTATUS
Ext2BlockMap(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Index,
IN BOOLEAN bAlloc,
OUT PULONG pBlock,
OUT PULONG Number
);
VOID
Ext2UpdateVcbStat(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb
);
NTSTATUS
Ext2NewBlock(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN ULONG GroupHint,
IN ULONG BlockHint,
OUT PULONG Block,
IN OUT PULONG Number
);
NTSTATUS
Ext2FreeBlock(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN ULONG Block,
IN ULONG Number
);
NTSTATUS
Ext2NewInode(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN ULONG GroupHint,
IN ULONG Type,
OUT PULONG Inode
);
NTSTATUS
Ext2UpdateGroupDirStat(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN ULONG Group
);
NTSTATUS
Ext2FreeInode(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN ULONG Inode,
IN ULONG Type
);
NTSTATUS
Ext2AddEntry (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_FCB Dcb,
IN struct inode *Inode,
IN PUNICODE_STRING FileName,
OUT struct dentry **dentry
);
NTSTATUS
Ext2SetFileType (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_FCB Dcb,
IN PEXT2_MCB Mcb,
IN umode_t mode
);
NTSTATUS
Ext2RemoveEntry (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_FCB Dcb,
IN PEXT2_MCB Mcb
);
NTSTATUS
Ext2SetParentEntry (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_FCB Dcb,
IN ULONG OldParent,
IN ULONG NewParent );
NTSTATUS
Ext2TruncateBlock(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Base,
IN ULONG Start,
IN ULONG Layer,
IN ULONG SizeArray,
IN PULONG BlockArray,
IN PULONG Extra
);
struct ext3_dir_entry_2 *ext3_next_entry(struct ext3_dir_entry_2 *p);
int ext3_check_dir_entry (const char * function, struct inode * dir,
struct ext3_dir_entry_2 * de,
struct buffer_head * bh,
unsigned long offset);
loff_t ext3_max_size(int blkbits, int has_huge_files);
loff_t ext3_max_bitmap_size(int bits, int has_huge_files);
__le16 ext4_group_desc_csum(struct ext3_sb_info *sbi, __u32 block_group,
struct ext4_group_desc *gdp);
int ext4_group_desc_csum_verify(struct ext3_sb_info *sbi, __u32 block_group,
struct ext4_group_desc *gdp);
ext3_fsblk_t descriptor_loc(struct super_block *sb,
ext3_fsblk_t logical_sb_block, unsigned int nr);
struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
ext4_group_t block_group, struct buffer_head **bh);
int ext4_check_descriptors(struct super_block *sb);
//
// Fastio.c
//
FAST_IO_POSSIBLE
Ext2IsFastIoPossible(
IN PEXT2_FCB Fcb
);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoCheckIfPossible (
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN ULONG Length,
IN BOOLEAN Wait,
IN ULONG LockKey,
IN BOOLEAN CheckForReadOperation,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoRead (IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN ULONG Length,
IN BOOLEAN Wait,
IN ULONG LockKey,
OUT PVOID Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoWrite (
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN ULONG Length,
IN BOOLEAN Wait,
IN ULONG LockKey,
OUT PVOID Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoQueryBasicInfo (
IN PFILE_OBJECT FileObject,
IN BOOLEAN Wait,
OUT PFILE_BASIC_INFORMATION Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoQueryStandardInfo (
IN PFILE_OBJECT FileObject,
IN BOOLEAN Wait,
OUT PFILE_STANDARD_INFORMATION Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoLock (
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN PLARGE_INTEGER Length,
IN PEPROCESS Process,
IN ULONG Key,
IN BOOLEAN FailImmediately,
IN BOOLEAN ExclusiveLock,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoUnlockSingle (
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER FileOffset,
IN PLARGE_INTEGER Length,
IN PEPROCESS Process,
IN ULONG Key,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoUnlockAll (
IN PFILE_OBJECT FileObject,
IN PEPROCESS Process,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoUnlockAllByKey (
IN PFILE_OBJECT FileObject,
#ifdef __REACTOS__
IN PVOID Process,
#else
IN PEPROCESS Process,
#endif
IN ULONG Key,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoQueryNetworkOpenInfo (
IN PFILE_OBJECT FileObject,
IN BOOLEAN Wait,
OUT PFILE_NETWORK_OPEN_INFORMATION Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject );
#ifdef __REACTOS__
BOOLEAN NTAPI
#else
BOOLEAN
#endif
Ext2FastIoQueryNetworkOpenInfo (
IN PFILE_OBJECT FileObject,
IN BOOLEAN Wait,
OUT PFILE_NETWORK_OPEN_INFORMATION Buffer,
OUT PIO_STATUS_BLOCK IoStatus,
IN PDEVICE_OBJECT DeviceObject);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2AcquireForCreateSection (
IN PFILE_OBJECT FileObject
);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2ReleaseForCreateSection (
IN PFILE_OBJECT FileObject
);
#ifdef __REACTOS__
NTSTATUS NTAPI
#else
NTSTATUS
#endif
Ext2AcquireFileForModWrite (
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER EndingOffset,
OUT PERESOURCE *ResourceToRelease,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef __REACTOS__
NTSTATUS NTAPI
#else
NTSTATUS
#endif
Ext2ReleaseFileForModWrite (
IN PFILE_OBJECT FileObject,
IN PERESOURCE ResourceToRelease,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef __REACTOS__
NTSTATUS NTAPI
#else
NTSTATUS
#endif
Ext2AcquireFileForCcFlush (
IN PFILE_OBJECT FileObject,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef __REACTOS__
NTSTATUS NTAPI
#else
NTSTATUS
#endif
Ext2ReleaseFileForCcFlush (
IN PFILE_OBJECT FileObject,
IN PDEVICE_OBJECT DeviceObject
);
#ifdef __REACTOS__
NTSTATUS NTAPI
#else
NTSTATUS
#endif
Ext2PreAcquireForCreateSection(
IN PFS_FILTER_CALLBACK_DATA cd,
OUT PVOID *cc
);
//
// FileInfo.c
//
NTSTATUS
Ext2QueryFileInformation (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2SetFileInformation (IN PEXT2_IRP_CONTEXT IrpContext);
ULONG
Ext2TotalBlocks(
PEXT2_VCB Vcb,
PLARGE_INTEGER Size,
PULONG pMeta
);
NTSTATUS
Ext2ExpandFile(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_MCB Mcb,
PLARGE_INTEGER Size
);
NTSTATUS
Ext2TruncateFile (
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_MCB Mcb,
PLARGE_INTEGER AllocationSize );
NTSTATUS
Ext2IsFileRemovable(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_FCB Fcb,
IN PEXT2_CCB Ccb
);
NTSTATUS
Ext2SetDispositionInfo(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_FCB Fcb,
PEXT2_CCB Ccb,
BOOLEAN bDelete
);
NTSTATUS
Ext2SetRenameInfo(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_FCB Fcb,
PEXT2_CCB Ccb
);
NTSTATUS
Ext2SetLinkInfo(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_FCB Fcb,
PEXT2_CCB Ccb
);
ULONG
Ext2InodeType(PEXT2_MCB Mcb);
NTSTATUS
Ext2DeleteFile(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_FCB Fcb,
PEXT2_MCB Mcb
);
//
// Flush.c
//
NTSTATUS
Ext2FlushFiles(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN BOOLEAN bShutDown
);
NTSTATUS
Ext2FlushVolume (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN BOOLEAN bShutDown
);
NTSTATUS
Ext2FlushFile (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_FCB Fcb,
IN PEXT2_CCB Ccb
);
NTSTATUS
Ext2Flush (IN PEXT2_IRP_CONTEXT IrpContext);
//
// Fsctl.c
//
NTSTATUS
Ext2ReadSymlink (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN PVOID Buffer,
IN ULONG Size,
OUT PULONG BytesRead
);
NTSTATUS
Ext2WriteSymlink (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN PVOID Buffer,
IN ULONG Size,
OUT PULONG BytesWritten
);
NTSTATUS
Ext2TruncateSymlink(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_MCB Mcb,
ULONG Size
);
//
// MountPoint process workitem
//
VOID
Ext2SetVpbFlag (IN PVPB Vpb,
IN USHORT Flag );
VOID
Ext2ClearVpbFlag (IN PVPB Vpb,
IN USHORT Flag );
BOOLEAN
Ext2CheckDismount (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN BOOLEAN bForce );
NTSTATUS
Ext2PurgeVolume (IN PEXT2_VCB Vcb,
IN BOOLEAN FlushBeforePurge);
NTSTATUS
Ext2PurgeFile (IN PEXT2_FCB Fcb,
IN BOOLEAN FlushBeforePurge);
BOOLEAN
Ext2IsHandleCountZero(IN PEXT2_VCB Vcb);
NTSTATUS
Ext2LockVcb (IN PEXT2_VCB Vcb,
IN PFILE_OBJECT FileObject);
NTSTATUS
Ext2LockVolume (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2UnlockVcb (IN PEXT2_VCB Vcb,
IN PFILE_OBJECT FileObject);
NTSTATUS
Ext2UnlockVolume (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2AllowExtendedDasdIo(IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2OplockRequest (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2QueryExtentMappings(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_FCB Fcb,
IN PLARGE_INTEGER RequestVbn,
OUT PLARGE_INTEGER * pMappedRuns
);
NTSTATUS
Ext2QueryRetrievalPointers(IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2GetRetrievalPointers(IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2GetRetrievalPointerBase(IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2UserFsRequest (IN PEXT2_IRP_CONTEXT IrpContext);
BOOLEAN
Ext2IsMediaWriteProtected (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PDEVICE_OBJECT TargetDevice
);
NTSTATUS
Ext2MountVolume (IN PEXT2_IRP_CONTEXT IrpContext);
VOID
Ext2VerifyVcb (IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb );
NTSTATUS
Ext2VerifyVolume (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2IsVolumeMounted (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2DismountVolume (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2FileSystemControl (IN PEXT2_IRP_CONTEXT IrpContext);
//
// HTree.c
//
struct buffer_head *ext3_append(struct ext2_icb *icb, struct inode *inode,
ext3_lblk_t *block, int *err);
void ext3_set_de_type(struct super_block *sb,
struct ext3_dir_entry_2 *de,
umode_t mode);
__u32 ext3_current_time(struct inode *in);
void ext3_warning (struct super_block * sb, const char * function,
char * fmt, ...);
#define ext3_error ext3_warning
#define ext4_error ext3_error
void ext3_update_dx_flag(struct inode *inode);
int ext3_mark_inode_dirty(struct ext2_icb *icb, struct inode *in);
void ext3_inc_count(struct inode *inode);
void ext3_dec_count(struct inode *inode);
struct buffer_head *
ext3_find_entry (struct ext2_icb *icb, struct dentry *dentry,
struct ext3_dir_entry_2 ** res_dir);
struct buffer_head *
ext3_dx_find_entry(struct ext2_icb *, struct dentry *dentry,
struct ext3_dir_entry_2 **res_dir, int *err);
typedef int (*filldir_t)(void *, const char *, int, unsigned long, __u32, unsigned);
int ext3_dx_readdir(struct file *filp, filldir_t filldir, void * context);
struct buffer_head *ext3_bread(struct ext2_icb *icb, struct inode *inode,
unsigned long block, int *err);
int add_dirent_to_buf(struct ext2_icb *icb, struct dentry *dentry,
struct inode *inode, struct ext3_dir_entry_2 *de,
struct buffer_head *bh);
#if !defined(__REACTOS__) || (defined(_MSC_VER) && !defined(__clang__))
/* FIXME: Inspect the clang-cl code path */
struct ext3_dir_entry_2 *
do_split(struct ext2_icb *icb, struct inode *dir,
struct buffer_head **bh,struct dx_frame *frame,
struct dx_hash_info *hinfo, int *error);
#endif
int ext3_add_entry(struct ext2_icb *icb, struct dentry *dentry, struct inode *inode);
int ext3_delete_entry(struct ext2_icb *icb, struct inode *dir,
struct ext3_dir_entry_2 *de_del,
struct buffer_head *bh);
int ext3_is_dir_empty(struct ext2_icb *icb, struct inode *inode);
//
// Init.c
//
NTSTATUS
Ext2QueryGlobalParameters(IN PUNICODE_STRING RegistryPath);
BOOLEAN
Ext2QueryRegistrySettings(IN PUNICODE_STRING RegistryPath);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
DriverUnload (IN PDRIVER_OBJECT DriverObject);
//
// Indirect.c
//
NTSTATUS
Ext2MapIndirect(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Index,
IN BOOLEAN bAlloc,
OUT PULONG pBlock,
OUT PULONG Number
);
NTSTATUS
Ext2ExpandIndirect(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_MCB Mcb,
ULONG Start,
ULONG End,
PLARGE_INTEGER Size
);
NTSTATUS
Ext2TruncateIndirect(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_MCB Mcb,
PLARGE_INTEGER Size
);
//
// linux.c: linux lib implemenation
//
int
ext2_init_linux();
void
ext2_destroy_linux();
//
// Lock.c
//
NTSTATUS
Ext2LockControl (IN PEXT2_IRP_CONTEXT IrpContext);
//
// Memory.c
//
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2FcbReaperThread(
PVOID Context
);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2McbReaperThread(
PVOID Context
);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2bhReaperThread(
PVOID Context
);
PEXT2_IRP_CONTEXT
Ext2AllocateIrpContext (IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp );
VOID
Ext2FreeIrpContext (IN PEXT2_IRP_CONTEXT IrpContext);
PEXT2_FCB
Ext2AllocateFcb (
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb
);
VOID
Ext2UnlinkFcb(IN PEXT2_FCB Fcb);
VOID
Ext2FreeFcb (IN PEXT2_FCB Fcb);
VOID
Ext2ReleaseFcb (IN PEXT2_FCB Fcb);
VOID
Ext2InsertFcb(PEXT2_VCB Vcb, PEXT2_FCB Fcb);
PEXT2_CCB
Ext2AllocateCcb (ULONG Flags, PEXT2_MCB SymLink);
VOID
Ext2FreeMcb (
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb
);
VOID
Ext2FreeCcb (IN PEXT2_VCB Vcb, IN PEXT2_CCB Ccb);
PEXT2_INODE
Ext2AllocateInode (PEXT2_VCB Vcb);
VOID
Ext2DestroyInode (IN PEXT2_VCB Vcb, IN PEXT2_INODE inode);
struct dentry * Ext2AllocateEntry();
VOID Ext2FreeEntry (IN struct dentry *de);
struct dentry *Ext2BuildEntry(PEXT2_VCB Vcb, PEXT2_MCB Dcb, PUNICODE_STRING FileName);
PEXT2_EXTENT
Ext2AllocateExtent();
VOID
Ext2FreeExtent (IN PEXT2_EXTENT Extent);
ULONG
Ext2CountExtents(IN PEXT2_EXTENT Chain);
VOID
Ext2JointExtents(
IN PEXT2_EXTENT Chain,
IN PEXT2_EXTENT Extent
);
VOID
Ext2DestroyExtentChain(IN PEXT2_EXTENT Chain);
NTSTATUS
Ext2BuildExtents(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONGLONG Offset,
IN ULONG Size,
IN BOOLEAN bAlloc,
OUT PEXT2_EXTENT * Chain
);
BOOLEAN
Ext2ListExtents(PLARGE_MCB Extents);
VOID
Ext2CheckExtent(
PLARGE_MCB Zone,
LONGLONG Vbn,
LONGLONG Lbn,
LONGLONG Length,
BOOLEAN bAdded
);
VOID
Ext2ClearAllExtents(PLARGE_MCB Zone);
BOOLEAN
Ext2AddVcbExtent (
IN PEXT2_VCB Vcb,
IN LONGLONG Vbn,
IN LONGLONG Length
);
BOOLEAN
Ext2RemoveVcbExtent (
IN PEXT2_VCB Vcb,
IN LONGLONG Vbn,
IN LONGLONG Length
);
BOOLEAN
Ext2LookupVcbExtent (
IN PEXT2_VCB Vcb,
IN LONGLONG Vbn,
OUT PLONGLONG Lbn,
OUT PLONGLONG Length
);
BOOLEAN
Ext2AddMcbExtent (
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN LONGLONG Vbn,
IN LONGLONG Lbn,
IN LONGLONG Length
);
BOOLEAN
Ext2RemoveMcbExtent (
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN LONGLONG Vbn,
IN LONGLONG Length
);
BOOLEAN
Ext2LookupMcbExtent (
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN LONGLONG Vbn,
OUT PLONGLONG Lbn,
OUT PLONGLONG Length
);
BOOLEAN
Ext2AddMcbMetaExts (
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Block,
IN ULONG Length
);
BOOLEAN
Ext2RemoveMcbMetaExts (
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Block,
IN ULONG Length
);
BOOLEAN
Ext2AddBlockExtent(
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Start,
IN ULONG Block,
IN ULONG Number
);
BOOLEAN
Ext2LookupBlockExtent(
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Start,
IN PULONG Block,
IN PULONG Mapped
);
BOOLEAN
Ext2RemoveBlockExtent(
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONG Start,
IN ULONG Number
);
NTSTATUS
Ext2InitializeZone(
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb
);
BOOLEAN
Ext2BuildName(
IN OUT PUNICODE_STRING Target,
IN PUNICODE_STRING File,
IN PUNICODE_STRING Parent
);
PEXT2_MCB
Ext2AllocateMcb (
IN PEXT2_VCB Vcb,
IN PUNICODE_STRING FileName,
IN PUNICODE_STRING Parent,
IN ULONG FileAttr
);
PEXT2_MCB
Ext2SearchMcb(
PEXT2_VCB Vcb,
PEXT2_MCB Parent,
PUNICODE_STRING FileName
);
PEXT2_MCB
Ext2SearchMcbWithoutLock(
PEXT2_MCB Parent,
PUNICODE_STRING FileName
);
VOID
Ext2InsertMcb(
PEXT2_VCB Vcb,
PEXT2_MCB Parent,
PEXT2_MCB Child
);
BOOLEAN
Ext2RemoveMcb(
PEXT2_VCB Vcb,
PEXT2_MCB Mcb
);
VOID
Ext2CleanupAllMcbs(
PEXT2_VCB Vcb
);
BOOLEAN
Ext2CheckSetBlock(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb, LONGLONG Block
);
BOOLEAN
Ext2CheckBitmapConsistency(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb
);
VOID
Ext2InsertVcb(PEXT2_VCB Vcb);
VOID
Ext2RemoveVcb(PEXT2_VCB Vcb);
NTSTATUS
Ext2InitializeLabel(
IN PEXT2_VCB Vcb,
IN PEXT2_SUPER_BLOCK Sb
);
NTSTATUS
Ext2InitializeVcb(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb,
PEXT2_SUPER_BLOCK Ext2Sb,
PDEVICE_OBJECT TargetDevice,
PDEVICE_OBJECT VolumeDevice,
PVPB Vpb );
VOID
Ext2TearDownStream (IN PEXT2_VCB Vcb);
VOID
Ext2DestroyVcb (IN PEXT2_VCB Vcb);
NTSTATUS
Ext2CompleteIrpContext (
IN PEXT2_IRP_CONTEXT IrpContext,
IN NTSTATUS Status );
VOID
Ext2SyncUninitializeCacheMap (
IN PFILE_OBJECT FileObject );
VOID
Ext2LinkTailMcb(PEXT2_VCB Vcb, PEXT2_MCB Mcb);
VOID
Ext2LinkHeadMcb(PEXT2_VCB Vcb, PEXT2_MCB Mcb);
VOID
Ext2UnlinkMcb(PEXT2_VCB Vcb, PEXT2_MCB Mcb);
PEXT2_MCB
Ext2FirstUnusedMcb(
PEXT2_VCB Vcb,
BOOLEAN Wait,
ULONG Number
);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2ReaperThread(
PVOID Context
);
NTSTATUS
Ext2StartReaper(PEXT2_REAPER, EXT2_REAPER_RELEASE);
#ifdef __REACTOS__
VOID NTAPI
#else
VOID
#endif
Ext2StopReaper(PEXT2_REAPER Reaper);
//
// Misc.c
//
ULONG
Ext2Log2(ULONG Value);
LARGE_INTEGER
Ext2NtTime (IN ULONG i_time);
ULONG
Ext2LinuxTime (IN LARGE_INTEGER SysTime);
ULONG
Ext2OEMToUnicodeSize(
IN PEXT2_VCB Vcb,
IN PANSI_STRING Oem
);
NTSTATUS
Ext2OEMToUnicode(
IN PEXT2_VCB Vcb,
IN OUT PUNICODE_STRING Oem,
IN POEM_STRING Unicode
);
ULONG
Ext2UnicodeToOEMSize(
IN PEXT2_VCB Vcb,
IN PUNICODE_STRING Unicode
);
NTSTATUS
Ext2UnicodeToOEM (
IN PEXT2_VCB Vcb,
IN OUT POEM_STRING Oem,
IN PUNICODE_STRING Unicode
);
VOID
Ext2Sleep(ULONG ms);
int Ext2LinuxError (NTSTATUS Status);
NTSTATUS Ext2WinntError(int rc);
BOOLEAN Ext2IsDot(PUNICODE_STRING name);
BOOLEAN Ext2IsDotDot(PUNICODE_STRING name);
//
// nls/nls_rtl.c
//
int
Ext2LoadAllNls();
VOID
Ext2UnloadAllNls();
//
// Pnp.c
//
NTSTATUS
Ext2Pnp(IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2PnpQueryRemove(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb );
NTSTATUS
Ext2PnpRemove(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb );
NTSTATUS
Ext2PnpCancelRemove(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb );
NTSTATUS
Ext2PnpSurpriseRemove(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb );
//
// Read.c
//
NTSTATUS
Ext2ReadInode (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONGLONG Offset,
IN PVOID Buffer,
IN ULONG Size,
IN BOOLEAN bDirectIo,
OUT PULONG dwReturn
);
NTSTATUS
Ext2Read (IN PEXT2_IRP_CONTEXT IrpContext);
//
// ext3\recover.c
//
PEXT2_MCB
Ext2LoadInternalJournal(
PEXT2_VCB Vcb,
ULONG jNo
);
INT
Ext2CheckJournal(
PEXT2_VCB Vcb,
PULONG jNo
);
INT
Ext2RecoverJournal(
PEXT2_IRP_CONTEXT IrpContext,
PEXT2_VCB Vcb
);
//
// Shutdown.c
//
NTSTATUS
Ext2ShutDown (IN PEXT2_IRP_CONTEXT IrpContext);
//
// Volinfo.c
//
NTSTATUS
Ext2QueryVolumeInformation (IN PEXT2_IRP_CONTEXT IrpContext);
NTSTATUS
Ext2SetVolumeInformation (IN PEXT2_IRP_CONTEXT IrpContext);
//
// Write.c
//
typedef struct _EXT2_RW_CONTEXT {
PIRP MasterIrp;
KEVENT Event;
ULONG Blocks;
ULONG Length;
PERESOURCE Resource;
ERESOURCE_THREAD ThreadId;
PFILE_OBJECT FileObject;
ULONG Flags;
BOOLEAN Wait;
} EXT2_RW_CONTEXT, *PEXT2_RW_CONTEXT;
#define EXT2_RW_CONTEXT_WRITE 1
NTSTATUS
Ext2WriteInode (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PEXT2_MCB Mcb,
IN ULONGLONG Offset,
IN PVOID Buffer,
IN ULONG Size,
IN BOOLEAN bDirectIo,
OUT PULONG dwReturn
);
VOID
Ext2StartFloppyFlushDpc (
PEXT2_VCB Vcb,
PEXT2_FCB Fcb,
PFILE_OBJECT FileObject );
BOOLEAN
Ext2ZeroData (
IN PEXT2_IRP_CONTEXT IrpContext,
IN PEXT2_VCB Vcb,
IN PFILE_OBJECT FileObject,
IN PLARGE_INTEGER Start,
IN PLARGE_INTEGER End );
NTSTATUS
Ext2Write (IN PEXT2_IRP_CONTEXT IrpContext);
#endif /* _EXT2_HEADER_ */
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