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\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\Macros\Strings.mac includelib c:\masm32\lib\wxp\i386\ntoskrnl.lib public DriverEntry MyDeviceExtension struct pNextDev PDEVICE_OBJECT ? szBuffer byte 255 dup(?) MyDeviceExtension ends 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_GET byte "IOCTL_GET",0 MSG_SET byte "IOCTL_SET",0 .code IrpOpenClose proc pMyDevice : PDEVICE_OBJECT, pIrp : PIRP IoGetCurrentIrpStackLocation pIrp movzx eax, (IO_STACK_LOCATION ptr [eax]).MajorFunction .if eax == IRP_MJ_CREATE invoke DbgPrint, $CTA0("IRP_MJ_CREATE") .elseif eax == IRP_MJ_CLOSE invoke DbgPrint, $CTA0("IRP_MJ_CLOSE") .endif mov eax, pIrp and (_IRP ptr [eax]).IoStatus.Information, 0 mov (_IRP ptr [eax]).IoStatus.Status, STATUS_SUCCESS fastcall IofCompleteRequest, pIrp, IO_NO_INCREMENT mov eax, STATUS_SUCCESS ret IrpOpenClose endp IrpIOCTL proc pMyDevice : PDEVICE_OBJECT, pIrp : PIRP local pBuf : DWORD local dwLen : DWORD local pDevExt : ptr and dwLen, 0 mov eax, pMyDevice push (DEVICE_OBJECT ptr [eax]).DeviceExtension pop pDevExt IoGetCurrentIrpStackLocation pIrp mov eax, (IO_STACK_LOCATION ptr [eax]).Parameters.DeviceIoControl.IoControlCode .if eax == IOCTL_GET invoke DbgPrint, offset MSG_GET mov eax, pIrp push (_IRP ptr [eax]).AssociatedIrp.SystemBuffer pop pBuf mov eax, pDevExt invoke strcpy, pBuf, addr (MyDeviceExtension ptr [eax]).szBuffer mov eax, pDevExt invoke strlen, addr (MyDeviceExtension ptr [eax]).szBuffer mov dwLen, eax .elseif eax == IOCTL_SET invoke DbgPrint, offset MSG_SET IoGetCurrentIrpStackLocation pIrp push (IO_STACK_LOCATION ptr [eax]).Parameters.DeviceIoControl.InputBufferLength pop dwLen mov eax, pIrp push (_IRP ptr [eax]).AssociatedIrp.SystemBuffer pop pBuf mov eax, pDevExt invoke memcpy, addr (MyDeviceExtension ptr [eax]).szBuffer, pBuf, dwLen invoke DbgPrint, $CTA0("Buffer: %s, Length: %d"), pBuf, dwLen .endif mov eax, pIrp mov (_IRP ptr [eax]).IoStatus.Status, STATUS_SUCCESS push dwLen pop (_IRP ptr [eax]).IoStatus.Information fastcall IofCompleteRequest, pIrp, IO_NO_INCREMENT mov eax, STATUS_SUCCESS ret IrpIOCTL endp IrpPnp proc pMyDevice : PDEVICE_OBJECT, pIrp : PIRP local pDevExt : ptr local szSymName : UNICODE_STRING mov eax, pMyDevice push (DEVICE_OBJECT ptr [eax]).DeviceExtension pop pDevExt IoGetCurrentIrpStackLocation pIrp movzx eax, (IO_STACK_LOCATION ptr [eax]).MinorFunction .if eax == IRP_MN_START_DEVICE mov eax, pIrp mov (_IRP ptr [eax]).IoStatus.Status, STATUS_SUCCESS .elseif eax == IRP_MN_REMOVE_DEVICE invoke RtlInitUnicodeString, addr szSymName, offset $CTW0("\\DosDevices\\MyDriver") invoke IoDeleteSymbolicLink, addr szSymName mov eax, pIrp mov (_IRP ptr [eax]).IoStatus.Status, STATUS_SUCCESS mov eax, pDevExt invoke IoDetachDevice, (MyDeviceExtension ptr [eax]).pNextDev invoke IoDeleteDevice, pMyDevice fastcall IofCompleteRequest, pIrp, IO_NO_INCREMENT ret .endif IoSkipCurrentIrpStackLocation pIrp mov eax, pDevExt invoke IoCallDriver, (MyDeviceExtension ptr [eax]).pNextDev, pIrp ret IrpPnp endp AddDevice proc pMyDriver : PDRIVER_OBJECT, pPhyDevice : PDEVICE_OBJECT local pMyDevice : PDEVICE_OBJECT local szDevName : UNICODE_STRING local szSymName : UNICODE_STRING invoke RtlInitUnicodeString, addr szDevName, $CTW0("\\Device\\MyDriver") invoke RtlInitUnicodeString, addr szSymName, $CTW0("\\DosDevices\\MyDriver") invoke IoCreateDevice, pMyDriver, sizeof MyDeviceExtension, addr szDevName, FILE_DEVICE_UNKNOWN, 0, FALSE, addr pMyDevice .if eax == STATUS_SUCCESS invoke IoAttachDeviceToDeviceStack, pMyDevice, pPhyDevice .if eax != NULL push eax mov eax, pMyDevice mov eax, (DEVICE_OBJECT ptr [eax]).DeviceExtension pop (MyDeviceExtension ptr [eax]).pNextDev mov eax, pMyDevice or (DEVICE_OBJECT ptr [eax]).Flags, DO_BUFFERED_IO and (DEVICE_OBJECT ptr [eax]).Flags, not DO_DEVICE_INITIALIZING invoke IoCreateSymbolicLink, addr szSymName, addr szDevName .endif .endif ret AddDevice endp Unload proc pMyDriver : PDRIVER_OBJECT ret Unload endp DriverEntry proc pMyDriver : PDRIVER_OBJECT, pMyRegistry : PUNICODE_STRING mov eax, pMyDriver mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_PNP * (sizeof PVOID)], offset IrpPnp mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_CREATE * (sizeof PVOID)], offset IrpOpenClose mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_CLOSE * (sizeof PVOID)], offset IrpOpenClose mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_DEVICE_CONTROL * (sizeof PVOID)], offset IrpIOCTL mov (DRIVER_OBJECT ptr [eax]).DriverUnload, offset Unload mov eax, (DRIVER_OBJECT ptr [eax]).DriverExtension mov (DRIVER_EXTENSION ptr [eax]).AddDevice, AddDevice mov eax, STATUS_SUCCESS ret DriverEntry endp end
完成