驅動程式 - Kernel Mode Driver Framework (KMDF) - 使用範例 - Assembly (MASM32) - PNP - Handle IOCTL IRP - Choose METHOD_BUFFERED

參考資訊：
https://wasm.in/
http://four-f.narod.ru/
https://github.com/steward-fu/ddk

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\wdfmemory.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_GET equ CTL_CODE(FILE_DEVICE_UNKNOWN, 800h, METHOD_BUFFERED, FILE_ANY_ACCESS)
IOCTL_SET equ CTL_CODE(FILE_DEVICE_UNKNOWN, 801h, METHOD_BUFFERED, FILE_ANY_ACCESS)
 
.const
MSG_SET byte "IOCTL_SET",0
MSG_GET byte "IOCTL_GET",0
 
.data
szBuffer byte 255 dup(0)
 
.code
IrpFileCreate proc myDevice : WDFDEVICE, myRequest : WDFREQUEST, myFileObject : WDFFILEOBJECT
    invoke DbgPrint, $CTA0("IRP_MJ_CREATE")
    invoke WdfRequestComplete, myRequest, STATUS_SUCCESS
    ret
IrpFileCreate endp
 
IrpFileClose proc myFileObject : WDFFILEOBJECT
    invoke DbgPrint, $CTA0("IRP_MJ_CLOSE")
    ret
IrpFileClose endp
 
IrpIOCTL proc myQueue : WDFQUEUE, myRequest : WDFREQUEST, myOutLen : DWORD, myInLen : DWORD, myCode:DWORD
    local len : dword
    local mem : WDFMEMORY
     
    .if myCode == IOCTL_SET
        invoke DbgPrint, offset MSG_SET
        invoke WdfRequestRetrieveInputMemory, myRequest, addr mem
        invoke WdfMemoryCopyToBuffer, mem, 0, offset szBuffer, myInLen
        invoke DbgPrint, $CTA0("Buffer: %s, Length:%d"), offset szBuffer, myInLen
        invoke WdfRequestSetInformation, myRequest, myInLen
    .elseif myCode == IOCTL_GET
        invoke DbgPrint, offset MSG_GET
        invoke WdfRequestRetrieveOutputMemory, myRequest, addr mem
        invoke WdfMemoryCopyFromBuffer, mem, 0, offset szBuffer, myOutLen
        invoke strlen, offset szBuffer
        invoke WdfRequestSetInformation, myRequest, eax
    .endif
    invoke WdfRequestComplete, myRequest, STATUS_SUCCESS
    ret
IrpIOCTL endp
 
AddDevice proc myDriver : WDFDRIVER, pMyDeviceInit : PWDFDEVICE_INIT
    local device : WDFDEVICE
    local io_cfg : WDF_IO_QUEUE_CONFIG
    local file_cfg : WDF_FILEOBJECT_CONFIG
    local szDevName : UNICODE_STRING
    local szSymName : UNICODE_STRING
     
    invoke RtlInitUnicodeString, addr szDevName, $CTW0("\\Device\\MyDriver")
    invoke RtlInitUnicodeString, addr szSymName, $CTW0("\\DosDevices\\MyDriver")
    invoke WdfDeviceInitAssignName, pMyDeviceInit, addr szDevName
    invoke WdfDeviceInitSetIoType, pMyDeviceInit, WdfDeviceIoBuffered
    invoke WDF_FILEOBJECT_CONFIG_INIT, addr file_cfg, offset IrpFileCreate, offset IrpFileClose, NULL
    invoke WdfDeviceInitSetFileObjectConfig, pMyDeviceInit, addr file_cfg, WDF_NO_OBJECT_ATTRIBUTES
    invoke WdfDeviceCreate, addr pMyDeviceInit, WDF_NO_OBJECT_ATTRIBUTES, addr device
    invoke WdfDeviceCreateSymbolicLink, device, addr szSymName
    invoke WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE, addr io_cfg, WdfIoQueueDispatchSequential
    lea eax, io_cfg
    mov (WDF_IO_QUEUE_CONFIG ptr [eax]).EvtIoDeviceControl, offset IrpIOCTL
    invoke WdfIoQueueCreate, device, addr io_cfg, WDF_NO_OBJECT_ATTRIBUTES, WDF_NO_HANDLE
    ret
AddDevice endp
 
DriverEntry proc pMyDriver : PDRIVER_OBJECT, pMyRegistry : PUNICODE_STRING
    local config : WDF_DRIVER_CONFIG
     
    invoke WDF_DRIVER_CONFIG_INIT, addr config, AddDevice
    invoke WdfDriverCreate, pMyDriver, pMyRegistry, WDF_NO_OBJECT_ATTRIBUTES, addr config, WDF_NO_HANDLE
    ret
DriverEntry endp
end DriverEntry
.end

完成