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/*
* Copyright (C) 2018 Alistair Leslie-Hughes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __FLTKERNEL__
#define __FLTKERNEL__
#ifdef __cplusplus
extern "C" {
#endif
#include <ddk/ntifs.h>
typedef struct _FLT_FILTER *PFLT_FILTER;
typedef struct _FLT_INSTANCE *PFLT_INSTANCE;
typedef ULONG FLT_CALLBACK_DATA_FLAGS;
typedef USHORT FLT_CONTEXT_REGISTRATION_FLAGS;
typedef USHORT FLT_CONTEXT_TYPE;
typedef ULONG FLT_FILE_NAME_OPTIONS;
typedef ULONG FLT_FILTER_UNLOAD_FLAGS;
typedef ULONG FLT_INSTANCE_QUERY_TEARDOWN_FLAGS;
typedef ULONG FLT_INSTANCE_SETUP_FLAGS;
typedef ULONG FLT_INSTANCE_TEARDOWN_FLAGS;
typedef ULONG FLT_NORMALIZE_NAME_FLAGS;
typedef ULONG FLT_OPERATION_REGISTRATION_FLAGS;
typedef ULONG FLT_POST_OPERATION_FLAGS;
typedef ULONG FLT_REGISTRATION_FLAGS;
typedef void* PFLT_CONTEXT;
#define FLT_VOLUME_CONTEXT 0x0001
#define FLT_INSTANCE_CONTEXT 0x0002
#define FLT_FILE_CONTEXT 0x0004
#define FLT_STREAM_CONTEXT 0x0008
#define FLT_STREAMHANDLE_CONTEXT 0x0010
#define FLT_TRANSACTION_CONTEXT 0x0020
#define FLTFL_OPERATION_REGISTRATION_SKIP_PAGING_IO 0x00000001
#define FLTFL_OPERATION_REGISTRATION_SKIP_CACHED_IO 0x00000002
#define FLTFL_OPERATION_REGISTRATION_SKIP_NON_DASD_IO 0x00000004
#define FLTFL_INSTANCE_TEARDOWN_MANUAL 0x00000001
#define FLTFL_INSTANCE_TEARDOWN_FILTER_UNLOAD 0x00000002
#define FLTFL_INSTANCE_TEARDOWN_MANDATORY_FILTER_UNLOAD 0x00000004
#define FLTFL_INSTANCE_TEARDOWN_VOLUME_DISMOUNT 0x00000008
#define FLTFL_INSTANCE_TEARDOWN_INTERNAL_ERROR 0x00000010
/* Belongs in fltuserstructures.h */
typedef enum _FLT_FILESYSTEM_TYPE
{
FLT_FSTYPE_UNKNOWN,
FLT_FSTYPE_RAW,
FLT_FSTYPE_NTFS,
FLT_FSTYPE_FAT,
FLT_FSTYPE_CDFS,
FLT_FSTYPE_UDFS,
FLT_FSTYPE_LANMAN,
FLT_FSTYPE_WEBDAV,
FLT_FSTYPE_RDPDR,
FLT_FSTYPE_NFS,
FLT_FSTYPE_MS_NETWARE,
FLT_FSTYPE_NETWARE,
FLT_FSTYPE_BSUDF,
FLT_FSTYPE_MUP,
FLT_FSTYPE_RSFX,
FLT_FSTYPE_ROXIO_UDF1,
FLT_FSTYPE_ROXIO_UDF2,
FLT_FSTYPE_ROXIO_UDF3,
FLT_FSTYPE_TACIT,
FLT_FSTYPE_FS_REC,
FLT_FSTYPE_INCD,
FLT_FSTYPE_INCD_FAT,
FLT_FSTYPE_EXFAT,
FLT_FSTYPE_PSFS,
FLT_FSTYPE_GPFS,
FLT_FSTYPE_NPFS,
FLT_FSTYPE_MSFS,
FLT_FSTYPE_CSVFS,
FLT_FSTYPE_REFS,
FLT_FSTYPE_OPENAFS
} FLT_FILESYSTEM_TYPE, *PFLT_FILESYSTEM_TYPE;
typedef struct _FLT_NAME_CONTROL
{
UNICODE_STRING Name;
} FLT_NAME_CONTROL, *PFLT_NAME_CONTROL;
typedef enum _FLT_PREOP_CALLBACK_STATUS
{
FLT_PREOP_SUCCESS_WITH_CALLBACK,
FLT_PREOP_SUCCESS_NO_CALLBACK,
FLT_PREOP_PENDING,
FLT_PREOP_DISALLOW_FASTIO,
FLT_PREOP_COMPLETE,
FLT_PREOP_SYNCHRONIZE,
FLT_PREOP_DISALLOW_FSFILTER_IO
} FLT_PREOP_CALLBACK_STATUS, *PFLT_PREOP_CALLBACK_STATUS;
typedef enum _FLT_POSTOP_CALLBACK_STATUS
{
FLT_POSTOP_FINISHED_PROCESSING,
FLT_POSTOP_MORE_PROCESSING_REQUIRED,
FLT_POSTOP_DISALLOW_FSFILTER_IO
} FLT_POSTOP_CALLBACK_STATUS, *PFLT_POSTOP_CALLBACK_STATUS;
typedef struct _FLT_RELATED_CONTEXTS
{
PFLT_CONTEXT VolumeContext;
PFLT_CONTEXT InstanceContext;
PFLT_CONTEXT FileContext;
PFLT_CONTEXT StreamContext;
PFLT_CONTEXT StreamHandleContext;
PFLT_CONTEXT TransactionContext;
} FLT_RELATED_CONTEXTS, *PFLT_RELATED_CONTEXTS;
typedef const struct _FLT_RELATED_OBJECTS *PCFLT_RELATED_OBJECTS;
typedef union _FLT_PARAMETERS
{
struct
{
PIO_SECURITY_CONTEXT SecurityContext;
ULONG Options;
USHORT POINTER_ALIGNMENT FileAttributes;
USHORT ShareAccess;
ULONG POINTER_ALIGNMENT EaLength;
void *EaBuffer;
LARGE_INTEGER AllocationSize;
} Create;
struct
{
PIO_SECURITY_CONTEXT SecurityContext;
ULONG Options;
USHORT POINTER_ALIGNMENT Reserved;
USHORT ShareAccess;
void *Parameters;
} CreatePipe;
#undef CreateMailslot
struct
{
PIO_SECURITY_CONTEXT SecurityContext;
ULONG Options;
USHORT POINTER_ALIGNMENT Reserved;
USHORT ShareAccess;
void *Parameters;
} CreateMailslot;
struct
{
ULONG Length;
ULONG POINTER_ALIGNMENT Key;
LARGE_INTEGER ByteOffset;
void *ReadBuffer;
PMDL MdlAddress;
} Read;
struct
{
ULONG Length;
ULONG POINTER_ALIGNMENT Key;
LARGE_INTEGER ByteOffset;
void *WriteBuffer;
PMDL MdlAddress;
} Write;
struct
{
ULONG Length;
FILE_INFORMATION_CLASS POINTER_ALIGNMENT FileInformationClass;
void *InfoBuffer;
} QueryFileInformation;
struct
{
ULONG Length;
FILE_INFORMATION_CLASS POINTER_ALIGNMENT FileInformationClass;
PFILE_OBJECT ParentOfTarget;
union
{
struct
{
BOOLEAN ReplaceIfExists;
BOOLEAN AdvanceOnly;
} DUMMYSTRUCTNAME;
ULONG ClusterCount;
HANDLE DeleteHandle;
} DUMMYUNIONNAME;
void *InfoBuffer;
} SetFileInformation;
struct
{
ULONG Length;
void *EaList;
ULONG EaListLength;
ULONG POINTER_ALIGNMENT EaIndex;
void *EaBuffer;
PMDL MdlAddress;
} QueryEa;
struct
{
ULONG Length;
void *EaBuffer;
PMDL MdlAddress;
} SetEa;
struct
{
ULONG Length;
FS_INFORMATION_CLASS POINTER_ALIGNMENT FsInformationClass;
void *VolumeBuffer;
} QueryVolumeInformation;
struct
{
ULONG Length;
FS_INFORMATION_CLASS POINTER_ALIGNMENT FsInformationClass;
void *VolumeBuffer;
} SetVolumeInformation;
union
{
struct
{
ULONG Length;
PUNICODE_STRING FileName;
FILE_INFORMATION_CLASS FileInformationClass;
ULONG POINTER_ALIGNMENT FileIndex;
void *DirectoryBuffer;
PMDL MdlAddress;
} QueryDirectory;
struct
{
ULONG Length;
ULONG POINTER_ALIGNMENT CompletionFilter;
ULONG POINTER_ALIGNMENT Spare1;
ULONG POINTER_ALIGNMENT Spare2;
void *DirectoryBuffer;
PMDL MdlAddress;
} NotifyDirectory;
struct
{
ULONG Length;
ULONG POINTER_ALIGNMENT CompletionFilter;
DIRECTORY_NOTIFY_INFORMATION_CLASS POINTER_ALIGNMENT DirectoryNotifyInformationClass;
ULONG POINTER_ALIGNMENT Spare2;
void *DirectoryBuffer;
PMDL MdlAddress;
} NotifyDirectoryEx;
} DirectoryControl;
union
{
struct
{
PVPB Vpb;
PDEVICE_OBJECT DeviceObject;
} VerifyVolume;
struct
{
ULONG OutputBufferLength;
ULONG POINTER_ALIGNMENT InputBufferLength;
ULONG POINTER_ALIGNMENT FsControlCode;
} Common;
struct
{
ULONG OutputBufferLength;
ULONG POINTER_ALIGNMENT InputBufferLength;
ULONG POINTER_ALIGNMENT FsControlCode;
void *InputBuffer;
void *OutputBuffer;
PMDL OutputMdlAddress;
} Neither;
struct
{
ULONG OutputBufferLength;
ULONG POINTER_ALIGNMENT InputBufferLength;
ULONG POINTER_ALIGNMENT FsControlCode;
void *SystemBuffer;
} Buffered;
struct
{
ULONG OutputBufferLength;
ULONG POINTER_ALIGNMENT InputBufferLength;
ULONG POINTER_ALIGNMENT FsControlCode;
void *InputSystemBuffer;
void *OutputBuffer;
PMDL OutputMdlAddress;
} Direct;
} FileSystemControl;
union
{
struct
{
ULONG OutputBufferLength;
ULONG POINTER_ALIGNMENT InputBufferLength;
ULONG POINTER_ALIGNMENT IoControlCode;
} Common;
struct
{
ULONG OutputBufferLength;
ULONG POINTER_ALIGNMENT InputBufferLength;
ULONG POINTER_ALIGNMENT IoControlCode;
void *InputBuffer;
void *OutputBuffer;
PMDL OutputMdlAddress;
} Neither;
struct
{
ULONG OutputBufferLength;
ULONG POINTER_ALIGNMENT InputBufferLength;
ULONG POINTER_ALIGNMENT IoControlCode;
void *SystemBuffer;
} Buffered;
struct
{
ULONG OutputBufferLength;
ULONG POINTER_ALIGNMENT InputBufferLength;
ULONG POINTER_ALIGNMENT IoControlCode;
void *InputSystemBuffer;
void *OutputBuffer;
PMDL OutputMdlAddress;
} Direct;
struct
{
ULONG OutputBufferLength;
ULONG POINTER_ALIGNMENT InputBufferLength;
ULONG POINTER_ALIGNMENT IoControlCode;
void *InputBuffer;
void *OutputBuffer;
} FastIo;
} DeviceIoControl;
struct
{
PLARGE_INTEGER Length;
ULONG POINTER_ALIGNMENT Key;
LARGE_INTEGER ByteOffset;
PEPROCESS ProcessId;
BOOLEAN FailImmediately;
BOOLEAN ExclusiveLock;
} LockControl;
struct
{
SECURITY_INFORMATION SecurityInformation;
ULONG POINTER_ALIGNMENT Length;
void *SecurityBuffer;
PMDL MdlAddress;
} QuerySecurity;
struct
{
SECURITY_INFORMATION SecurityInformation;
PSECURITY_DESCRIPTOR SecurityDescriptor;
} SetSecurity;
struct
{
ULONG_PTR ProviderId;
void *DataPath;
ULONG BufferSize;
void *Buffer;
} WMI;
struct
{
ULONG Length;
PSID StartSid;
PFILE_GET_QUOTA_INFORMATION SidList;
ULONG SidListLength;
void *QuotaBuffer;
PMDL MdlAddress;
} QueryQuota;
struct
{
ULONG Length;
void *QuotaBuffer;
PMDL MdlAddress;
} SetQuota;
union
{
struct
{
PCM_RESOURCE_LIST AllocatedResources;
PCM_RESOURCE_LIST AllocatedResourcesTranslated;
} StartDevice;
struct
{
DEVICE_RELATION_TYPE Type;
} QueryDeviceRelations;
struct
{
const GUID *InterfaceType;
USHORT Size;
USHORT Version;
PINTERFACE Interface;
void *InterfaceSpecificData;
} QueryInterface;
struct
{
PDEVICE_CAPABILITIES Capabilities;
} DeviceCapabilities;
struct
{
PIO_RESOURCE_REQUIREMENTS_LIST IoResourceRequirementList;
} FilterResourceRequirements;
struct
{
ULONG WhichSpace;
void *Buffer;
ULONG Offset;
ULONG POINTER_ALIGNMENT Length;
} ReadWriteConfig;
struct
{
BOOLEAN Lock;
} SetLock;
struct {
BUS_QUERY_ID_TYPE IdType;
} QueryId;
struct
{
DEVICE_TEXT_TYPE DeviceTextType;
LCID POINTER_ALIGNMENT LocaleId;
} QueryDeviceText;
struct
{
BOOLEAN InPath;
BOOLEAN Reserved[3];
DEVICE_USAGE_NOTIFICATION_TYPE POINTER_ALIGNMENT Type;
} UsageNotification;
} Pnp;
struct
{
FS_FILTER_SECTION_SYNC_TYPE SyncType;
ULONG PageProtection;
PFS_FILTER_SECTION_SYNC_OUTPUT OutputInformation;
} AcquireForSectionSynchronization;
struct
{
PLARGE_INTEGER EndingOffset;
PERESOURCE *ResourceToRelease;
} AcquireForModifiedPageWriter;
struct
{
PERESOURCE ResourceToRelease;
} ReleaseForModifiedPageWriter;
struct
{
PIRP Irp;
void *FileInformation;
PULONG Length;
FILE_INFORMATION_CLASS FileInformationClass;
} QueryOpen;
struct
{
LARGE_INTEGER FileOffset;
ULONG Length;
ULONG POINTER_ALIGNMENT LockKey;
BOOLEAN POINTER_ALIGNMENT CheckForReadOperation;
} FastIoCheckIfPossible;
struct
{
PIRP Irp;
PFILE_NETWORK_OPEN_INFORMATION NetworkInformation;
} NetworkQueryOpen;
struct
{
LARGE_INTEGER FileOffset;
ULONG POINTER_ALIGNMENT Length;
ULONG POINTER_ALIGNMENT Key;
PMDL *MdlChain;
} MdlRead;
struct
{
PMDL MdlChain;
} MdlReadComplete;
struct
{
LARGE_INTEGER FileOffset;
ULONG POINTER_ALIGNMENT Length;
ULONG POINTER_ALIGNMENT Key;
PMDL *MdlChain;
} PrepareMdlWrite;
struct
{
LARGE_INTEGER FileOffset;
PMDL MdlChain;
} MdlWriteComplete;
struct
{
ULONG DeviceType;
} MountVolume;
struct
{
void *Argument1;
void *Argument2;
void *Argument3;
void *Argument4;
void *Argument5;
LARGE_INTEGER Argument6;
} Others;
} FLT_PARAMETERS, *PFLT_PARAMETERS;
typedef struct _FLT_IO_PARAMETER_BLOCK
{
ULONG IrpFlags;
UCHAR MajorFunction;
UCHAR MinorFunction;
UCHAR OperationFlags;
UCHAR Reserved;
PFILE_OBJECT TargetFileObject;
PFLT_INSTANCE TargetInstance;
FLT_PARAMETERS Parameters;
} FLT_IO_PARAMETER_BLOCK, *PFLT_IO_PARAMETER_BLOCK;
typedef struct _FLT_CALLBACK_DATA
{
FLT_CALLBACK_DATA_FLAGS Flags;
PETHREAD const Thread;
PFLT_IO_PARAMETER_BLOCK const Iopb;
IO_STATUS_BLOCK IoStatus;
struct _FLT_TAG_DATA_BUFFER *TagData;
union
{
struct
{
LIST_ENTRY QueueLinks;
void *QueueContext[2];
} DUMMYSTRUCTNAME;
void *FilterContext[4];
} DUMMYUNIONNAME;
KPROCESSOR_MODE RequestorMode;
} FLT_CALLBACK_DATA, *PFLT_CALLBACK_DATA;
typedef void* (WINAPI *PFLT_CONTEXT_ALLOCATE_CALLBACK)(POOL_TYPE,SIZE_T,FLT_CONTEXT_TYPE);
typedef void (WINAPI *PFLT_CONTEXT_CLEANUP_CALLBACK)(PFLT_CONTEXT, FLT_CONTEXT_TYPE);
typedef void (WINAPI *PFLT_CONTEXT_FREE_CALLBACK)(void *, FLT_CONTEXT_TYPE);
typedef NTSTATUS (WINAPI *PFLT_FILTER_UNLOAD_CALLBACK)(FLT_FILTER_UNLOAD_FLAGS);
typedef NTSTATUS (WINAPI *PFLT_INSTANCE_QUERY_TEARDOWN_CALLBACK)(PCFLT_RELATED_OBJECTS,
FLT_INSTANCE_QUERY_TEARDOWN_FLAGS);
typedef NTSTATUS (WINAPI *PFLT_GENERATE_FILE_NAME)(PFLT_INSTANCE, PFILE_OBJECT,PFLT_CALLBACK_DATA,
FLT_FILE_NAME_OPTIONS,PBOOLEAN, PFLT_NAME_CONTROL);
typedef NTSTATUS (WINAPI *PFLT_INSTANCE_SETUP_CALLBACK)(PCFLT_RELATED_OBJECTS,FLT_INSTANCE_SETUP_FLAGS,
DEVICE_TYPE,FLT_FILESYSTEM_TYPE);
typedef void (WINAPI *PFLT_INSTANCE_TEARDOWN_CALLBACK)(PCFLT_RELATED_OBJECTS, FLT_INSTANCE_TEARDOWN_FLAGS);
typedef void (WINAPI *PFLT_NORMALIZE_CONTEXT_CLEANUP)(void**);
typedef NTSTATUS (WINAPI *PFLT_NORMALIZE_NAME_COMPONENT)(PFLT_INSTANCE, PCUNICODE_STRING, USHORT,
PCUNICODE_STRING,PFILE_NAMES_INFORMATION,ULONG,FLT_NORMALIZE_NAME_FLAGS, void **);
typedef NTSTATUS (WINAPI *PFLT_NORMALIZE_NAME_COMPONENT_EX)(PFLT_INSTANCE, PFILE_OBJECT, PCUNICODE_STRING,
USHORT, PCUNICODE_STRING,PFILE_NAMES_INFORMATION, ULONG, FLT_NORMALIZE_NAME_FLAGS Flags,
void **NormalizationContext);
typedef FLT_PREOP_CALLBACK_STATUS (WINAPI *PFLT_PRE_OPERATION_CALLBACK)(PFLT_CALLBACK_DATA,
PCFLT_RELATED_OBJECTS, void**);
typedef FLT_POSTOP_CALLBACK_STATUS (WINAPI *PFLT_POST_OPERATION_CALLBACK)(PFLT_CALLBACK_DATA,
PCFLT_RELATED_OBJECTS, void*, FLT_POST_OPERATION_FLAGS);
typedef NTSTATUS (WINAPI *PFLT_SECTION_CONFLICT_NOTIFICATION_CALLBACK)(PFLT_INSTANCE, PFLT_CONTEXT,
PFLT_CALLBACK_DATA);
typedef NTSTATUS (WINAPI *PFLT_TRANSACTION_NOTIFICATION_CALLBACK)(PCFLT_RELATED_OBJECTS, PFLT_CONTEXT, ULONG);
typedef struct _FLT_CONTEXT_REGISTRATION
{
FLT_CONTEXT_TYPE ContextType;
FLT_CONTEXT_REGISTRATION_FLAGS Flags;
PFLT_CONTEXT_CLEANUP_CALLBACK ContextCleanupCallback;
SIZE_T Size;
ULONG PoolTag;
PFLT_CONTEXT_ALLOCATE_CALLBACK ContextAllocateCallback;
PFLT_CONTEXT_FREE_CALLBACK ContextFreeCallback;
void *Reserved1;
} FLT_CONTEXT_REGISTRATION, *PFLT_CONTEXT_REGISTRATION;
typedef const FLT_CONTEXT_REGISTRATION *PCFLT_CONTEXT_REGISTRATION;
typedef struct _FLT_OPERATION_REGISTRATION
{
UCHAR MajorFunction;
FLT_OPERATION_REGISTRATION_FLAGS Flags;
PFLT_PRE_OPERATION_CALLBACK PreOperation;
PFLT_POST_OPERATION_CALLBACK PostOperation;
void *Reserved1;
} FLT_OPERATION_REGISTRATION, *PFLT_OPERATION_REGISTRATION;
typedef struct _FLT_REGISTRATION
{
USHORT Size;
USHORT Version;
FLT_REGISTRATION_FLAGS Flags;
const FLT_CONTEXT_REGISTRATION *ContextRegistration;
const FLT_OPERATION_REGISTRATION *OperationRegistration;
PFLT_FILTER_UNLOAD_CALLBACK FilterUnloadCallback;
PFLT_INSTANCE_SETUP_CALLBACK InstanceSetupCallback;
PFLT_INSTANCE_QUERY_TEARDOWN_CALLBACK InstanceQueryTeardownCallback;
PFLT_INSTANCE_TEARDOWN_CALLBACK InstanceTeardownStartCallback;
PFLT_INSTANCE_TEARDOWN_CALLBACK InstanceTeardownCompleteCallback;
PFLT_GENERATE_FILE_NAME GenerateFileNameCallback;
PFLT_NORMALIZE_NAME_COMPONENT NormalizeNameComponentCallback;
PFLT_NORMALIZE_CONTEXT_CLEANUP NormalizeContextCleanupCallback;
PFLT_TRANSACTION_NOTIFICATION_CALLBACK TransactionNotificationCallback;
PFLT_NORMALIZE_NAME_COMPONENT_EX NormalizeNameComponentExCallback;
PFLT_SECTION_CONFLICT_NOTIFICATION_CALLBACK SectionNotificationCallback;
} FLT_REGISTRATION, *PFLT_REGISTRATION;
void* WINAPI FltGetRoutineAddress(LPCSTR name);
NTSTATUS WINAPI FltRegisterFilter(PDRIVER_OBJECT, const FLT_REGISTRATION *, PFLT_FILTER *);
NTSTATUS WINAPI FltStartFiltering(PFLT_FILTER);
void WINAPI FltUnregisterFilter(PFLT_FILTER);
#ifdef __cplusplus
}
#endif
#endif
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