Kernel Mode Driver Framework >> Assembly (PNP) >> Timer
WDF
參考資訊:
1. Source Code
2. using-timers
WDF重新封裝出一個新的Timer計時器,基本上,用法跟DPC Timer相似,可以設定成週期性或單一次觸發類型,使用步驟如下:
1. WdfTimerCreate()
2. WdfTimerStart()
3. WdfTimerStop()
main.asm
.386p .model flat, stdcall option casemap:none include c:\masm32\Macros\Strings.mac include c:\masm32\include\w2k\ntdef.inc include c:\masm32\include\w2k\ntstatus.inc include c:\masm32\include\w2k\ntddk.inc include c:\masm32\include\w2k\ntoskrnl.inc include c:\masm32\include\w2k\ntddkbd.inc include c:\masm32\include\wxp\wdm.inc include c:\masm32\include\wdf\umdf\1.9\wudfddi_types.inc include c:\masm32\include\wdf\kmdf\1.9\wdf.inc include c:\masm32\include\wdf\kmdf\1.9\wdftypes.inc include c:\masm32\include\wdf\kmdf\1.9\wdfglobals.inc include c:\masm32\include\wdf\kmdf\1.9\wdffuncenum.inc include c:\masm32\include\wdf\kmdf\1.9\wdfobject.inc include c:\masm32\include\wdf\kmdf\1.9\wdfdevice.inc include c:\masm32\include\wdf\kmdf\1.9\wdfdriver.inc include c:\masm32\include\wdf\kmdf\1.9\wdfrequest.inc include c:\masm32\include\wdf\kmdf\1.9\wdfio.inc include c:\masm32\include\wdf\kmdf\1.9\wdfcore.inc include c:\masm32\include\wdf\kmdf\1.9\wdfmemory.inc include c:\masm32\include\wdf\kmdf\1.9\wdftimer.inc includelib c:\masm32\lib\wxp\i386\BufferOverflowK.lib includelib c:\masm32\lib\wxp\i386\ntoskrnl.lib includelib c:\masm32\lib\wxp\i386\hal.lib includelib c:\masm32\lib\wxp\i386\wmilib.lib includelib c:\masm32\lib\wxp\i386\sehupd.lib includelib c:\masm32\lib\wdf\kmdf\i386\1.9\wdfldr.lib includelib c:\masm32\lib\wdf\kmdf\i386\1.9\wdfdriverentry.lib public DriverEntry IOCTL_START equ CTL_CODE(FILE_DEVICE_UNKNOWN, 800h, METHOD_BUFFERED, FILE_ANY_ACCESS) IOCTL_STOP equ CTL_CODE(FILE_DEVICE_UNKNOWN, 801h, METHOD_BUFFERED, FILE_ANY_ACCESS) .const DEV_NAME word "\","D","e","v","i","c","e","\","M","y","D","r","i","v","e","r",0 SYM_NAME word "\","D","o","s","D","e","v","i","c","e","s","\","M","y","D","r","i","v","e","r",0 MSG_START byte "IOCTL_START",0 MSG_STOP byte "IOCTL_STOP",0 .data dwTimerCnt DWORD ? hTimer WDFTIMER ? .code OnTimer proc Timer:WDFTIMER inc dwTimerCnt invoke DbgPrint, $CTA0("WdfTimer: %d"), dwTimerCnt ret OnTimer endp IrpFileCreate proc Device:WDFDEVICE, Request:WDFREQUEST, FileObject:WDFFILEOBJECT invoke DbgPrint, $CTA0("IrpFieCreate") invoke WdfRequestComplete, Request, STATUS_SUCCESS ret IrpFileCreate endp IrpFileClose proc FileObject:WDFFILEOBJECT invoke DbgPrint, $CTA0("IrpFieClose") ret IrpFileClose endp IrpIOCTL proc uses ebx edx Queue:WDFQUEUE, Request:WDFREQUEST, OutputBufferLength:DWORD, InputBufferLength:DWORD, IoControlCode:DWORD local timeout:qword local stTimeCnt:LARGE_INTEGER .if IoControlCode == IOCTL_START invoke DbgPrint, offset MSG_START mov dwTimerCnt, 0 ;lea ebx, timeout ;mov (dword ptr [ebx + 0]), 1000 ;mov (dword ptr [ebx + 4]), 0 ;invoke WDF_REL_TIMEOUT_IN_MS, timeout ;lea ebx, timeout ;mov (dword ptr [ebx + 0]), eax ;mov (dword ptr [ebx + 4]), edx ;invoke WdfTimerStart, hTimer, timeout or stTimeCnt.HighPart, -1 mov stTimeCnt.LowPart, -10000000 invoke WdfTimerStart, hTimer, stTimeCnt.QuadPart .elseif IoControlCode == IOCTL_STOP invoke DbgPrint, offset MSG_STOP invoke WdfTimerStop, hTimer, FALSE .endif invoke WdfRequestComplete, Request, STATUS_SUCCESS ret IrpIOCTL endp AddDevice proc Driver:WDFDRIVER, pDeviceInit:PWDFDEVICE_INIT local device:WDFDEVICE local suDevName:UNICODE_STRING local szSymName:UNICODE_STRING local timer_cfg:WDF_TIMER_CONFIG local file_cfg:WDF_FILEOBJECT_CONFIG local ioqueue_cfg:WDF_IO_QUEUE_CONFIG local timer_attribute:WDF_OBJECT_ATTRIBUTES invoke RtlInitUnicodeString, addr suDevName, offset DEV_NAME invoke RtlInitUnicodeString, addr szSymName, offset SYM_NAME invoke WdfDeviceInitAssignName, pDeviceInit, addr suDevName invoke WdfDeviceInitSetIoType, pDeviceInit, WdfDeviceIoBuffered invoke WDF_FILEOBJECT_CONFIG_INIT, addr file_cfg, offset IrpFileCreate, offset IrpFileClose, NULL invoke WdfDeviceInitSetFileObjectConfig, pDeviceInit, addr file_cfg, WDF_NO_OBJECT_ATTRIBUTES invoke WdfDeviceCreate, addr pDeviceInit, WDF_NO_OBJECT_ATTRIBUTES, addr device invoke WdfDeviceCreateSymbolicLink, device, addr szSymName invoke WDF_TIMER_CONFIG_INIT_PERIODIC, addr timer_cfg, OnTimer, 1000 invoke WDF_OBJECT_ATTRIBUTES_INIT, addr timer_attribute lea eax, timer_attribute push device pop (WDF_OBJECT_ATTRIBUTES ptr [eax]).ParentObject invoke WdfTimerCreate, addr timer_cfg, addr timer_attribute, addr hTimer invoke WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE, addr ioqueue_cfg, WdfIoQueueDispatchSequential lea eax, ioqueue_cfg mov (WDF_IO_QUEUE_CONFIG ptr [eax]).EvtIoDeviceControl, offset IrpIOCTL invoke WdfIoQueueCreate, device, addr ioqueue_cfg, WDF_NO_OBJECT_ATTRIBUTES, WDF_NO_HANDLE ret AddDevice endp DriverEntry proc pOurDriver:PDRIVER_OBJECT, pOurRegistry:PUNICODE_STRING local config:WDF_DRIVER_CONFIG invoke WDF_DRIVER_CONFIG_INIT, addr config, AddDevice invoke WdfDriverCreate, pOurDriver, pOurRegistry, WDF_NO_OBJECT_ATTRIBUTES, addr config, WDF_NO_HANDLE ret DriverEntry endp end DriverEntry .end
AddDevice()初始化I/O Timer
IrpIOCTL()啟動或停止I/O Timer
OnTimer()僅列印訊息,其餘事情不做
app.asm
.386p .model flat, stdcall option casemap:none include c:\masm32\include\windows.inc include c:\masm32\include\masm32.inc include c:\masm32\include\user32.inc include c:\masm32\include\msvcrt.inc include c:\masm32\include\kernel32.inc include c:\masm32\include\w2k\ntddkbd.inc include c:\masm32\Macros\Strings.mac includelib c:\masm32\lib\user32.lib includelib c:\masm32\lib\masm32.lib includelib c:\masm32\lib\msvcrt.lib includelib c:\masm32\lib\kernel32.lib IOCTL_START equ CTL_CODE(FILE_DEVICE_UNKNOWN, 800h, METHOD_BUFFERED, FILE_ANY_ACCESS) IOCTL_STOP equ CTL_CODE(FILE_DEVICE_UNKNOWN, 801h, METHOD_BUFFERED, FILE_ANY_ACCESS) .const DEV_NAME db "\\.\MyDriver",0 .data? hFile dd ? dwRet dd ? .code start: invoke CreateFile, offset DEV_NAME, GENERIC_READ or GENERIC_WRITE, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0 .if eax == INVALID_HANDLE_VALUE invoke crt_printf, $CTA0("failed to open mydriver") invoke ExitProcess, -1 .endif mov hFile, eax invoke DeviceIoControl, hFile, IOCTL_START, NULL, 0, NULL, 0, offset dwRet, NULL invoke Sleep, 3000 invoke DeviceIoControl, hFile, IOCTL_STOP, NULL, 0, NULL, 0, offset dwRet, NULL invoke CloseHandle, hFile invoke ExitProcess, 0 end start
結果