Steward
分享是一種喜悅、更是一種幸福
驅動程式 - Windows NT Driver (Legacy) - 使用範例 - Pascal (DDDK) - Cancel IRP
參考資訊:
https://wasm.in/
http://four-f.narod.ru/
https://github.com/steward-fu/ddk
http://www.delphibasics.info/home/delphibasicsprojects/delphidriverdevelopmentkit
main.pas
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | unit main ; interface uses DDDK ; const DEV_NAME = '\Device\MyDriver' ; SYM_NAME = '\DosDevices\MyDriver' ; // CTL_CODE(FILE_DEVICE_UNKNOWN, 0x800, METHOD_BUFFERED, FILE_ANY_ACCESS) IOCTL_QUEUE = $222000 ; // CTL_CODE(FILE_DEVICE_UNKNOWN, 0x801, METHOD_BUFFERED, FILE_ANY_ACCESS) IOCTL_PROCESS = $222004 ; function _DriverEntry (pMyDriver : PDriverObject ; pMyRegistry : PUnicodeString ) : NTSTATUS ; stdcall ; implementation var dpc : TKDpc ; obj : KTIMER ; queue : LIST_ENTRY ; procedure OnTimer (Dpc : KDPC ; DeferredContext : Pointer ; SystemArgument1 : Pointer ; SystemArgument2 : Pointer ); stdcall ; var irp : PIRP ; plist : PLIST_ENTRY ; begin if IsListEmpty (@queue) = True then begin KeCancelTimer (@obj); DbgPrint ( 'Finish' , []); end else begin plist := RemoveHeadList (@queue); // CONTAINING_RECORD(IRP.Tail.Overlay.ListEntry) irp := Pointer ( Integer (plist) - 88 ); if irp^.Cancel = False then begin irp^.IoStatus . Status := STATUS_SUCCESS ; irp^.IoStatus . Information := 0 ; IoCompleteRequest (irp, IO_NO_INCREMENT ); DbgPrint ( 'Complete Irp' , []); end else begin irp^.CancelRoutine := Nil ; irp^.IoStatus . Status := STATUS_CANCELLED ; irp^.IoStatus . Information := 0 ; IoCompleteRequest (irp, IO_NO_INCREMENT ); DbgPrint ( 'Cancel Irp' , []); end ; end ; end ; function IrpOpen (pMyDevice : PDeviceObject ; pIrp : PIrp ) : NTSTATUS ; stdcall ; begin DbgPrint ( 'IRP_MJ_CREATE' , []); Result := STATUS_SUCCESS ; pIrp^.IoStatus . Information := 0 ; pIrp^.IoStatus . Status := Result; IoCompleteRequest (pIrp, IO_NO_INCREMENT ); end ; function IrpClose (pMyDevice : PDeviceObject ; pIrp : PIrp ) : NTSTATUS ; stdcall ; begin DbgPrint ( 'IRP_MJ_CLOSE' , []); Result := STATUS_SUCCESS ; pIrp^.IoStatus . Information := 0 ; pIrp^.IoStatus . Status := Result; IoCompleteRequest (pIrp, IO_NO_INCREMENT ); end ; function IrpIOCTL (pMyDevice : PDeviceObject ; pIrp : PIrp ) : NTSTATUS ; stdcall ; var code : ULONG ; tt : LARGE_INTEGER ; psk : PIoStackLocation ; begin psk := IoGetCurrentIrpStackLocation (pIrp); code := psk^.Parameters . DeviceIoControl . IoControlCode; case code of IOCTL_QUEUE : begin DbgPrint ( 'IOCTL_QUEUE' , []); InsertHeadList (@queue, @pIrp^.Tail . Overlay . s1 . ListEntry); IoMarkIrpPending (pIrp); Result := STATUS_PENDING ; exit end ; IOCTL_PROCESS : begin DbgPrint ( 'IOCTL_PROCESS' , []); tt . HighPart := tt . HighPart or - 1 ; tt . LowPart := ULONG (- 10000000 ); KeSetTimerEx (@obj, tt . LowPart, tt . HighPart, 1000 , @dpc); end ; end ; Result := STATUS_SUCCESS ; pIrp^.IoStatus . Information := 0 ; pIrp^.IoStatus . Status := Result; IoCompleteRequest (pIrp, IO_NO_INCREMENT ); end ; procedure Unload (pMyDriver : PDriverObject ); stdcall ; var szSymName : TUnicodeString ; begin RtlInitUnicodeString (@szSymName, SYM_NAME ); IoDeleteSymbolicLink (@szSymName); IoDeleteDevice (pMyDriver^.DeviceObject); end ; function _DriverEntry (pMyDriver : PDriverObject ; pMyRegistry : PUnicodeString ) : NTSTATUS ; stdcall ; var szDevName : TUnicodeString ; szSymName : TUnicodeString ; pMyDevice : PDeviceObject ; begin RtlInitUnicodeString (@szDevName, DEV_NAME ); RtlInitUnicodeString (@szSymName, SYM_NAME ); IoCreateDevice (pMyDriver, 0 , @szDevName, FILE_DEVICE_UNKNOWN , 0 , FALSE , pMyDevice); pMyDriver^.MajorFunction[ IRP_MJ_CREATE ] := @ IrpOpen ; pMyDriver^.MajorFunction[ IRP_MJ_CLOSE ] := @ IrpClose ; pMyDriver^.MajorFunction[ IRP_MJ_DEVICE_CONTROL ] := @ IrpIOCTL ; pMyDriver^.DriverUnload := @ Unload ; pMyDevice^.Flags := pMyDevice^.Flags or DO_BUFFERED_IO ; pMyDevice^.Flags := pMyDevice^.Flags and not DO_DEVICE_INITIALIZING ; InitializeListHead (@queue); KeInitializeTimer (@obj); KeInitializeDpc (@dpc, OnTimer , pMyDevice); Result := IoCreateSymbolicLink (@szSymName, @szDevName); end ; end . |
app.pas
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | program main ; {$APPTYPE CONSOLE} uses forms , dialogs , windows , classes , messages , sysutils , variants , graphics , controls ; const METHOD_BUFFERED = 0 ; METHOD_IN_DIRECT = 1 ; METHOD_OUT_DIRECT = 2 ; METHOD_NEITHER = 3 ; FILE_ANY_ACCESS = 0 ; FILE_DEVICE_UNKNOWN = $22 ; var fd : DWORD ; ret : DWORD ; cnt : DWORD ; code: DWORD ; ov : array [ 0..2 ] of OVERLAPPED ; begin fd := CreateFile ( '\\.\MyDriver' , GENERIC_READ or GENERIC_WRITE , FILE_SHARE_READ , Nil , OPEN_EXISTING , FILE_FLAG_OVERLAPPED or FILE_ATTRIBUTE_NORMAL , 0 ); for cnt := 0 to 2 do begin ov[cnt].hEvent := CreateEvent ( Nil , TRUE , FALSE , Nil ); code := ( FILE_DEVICE_UNKNOWN shl 16 ) or ( FILE_ANY_ACCESS shl 14 ) or ( $800 shl 2 ) or ( METHOD_BUFFERED ); WriteLn (Output, 'Queued event' ); DeviceIoControl (fd, code, Nil , 0 , Nil , 0 , ret , @ov[cnt]); end ; code := ( FILE_DEVICE_UNKNOWN shl 16 ) or ( FILE_ANY_ACCESS shl 14 ) or ( $801 shl 2 ) or ( METHOD_BUFFERED ); WriteLn (Output, 'Processing All Events' ); DeviceIoControl (fd, code, Nil , 0 , Nil , 0 , ret , Nil ); Sleep ( 1000 ); CancelIo (fd); for cnt := 0 to 2 do begin WaitForSingleObject (ov[cnt].hEvent, INFINITE ); CloseHandle (ov[cnt].hEvent); WriteLn (Output, 'Complete' ); end ; CloseHandle (fd); end . |
完成