驅動程式 - Windows Driver Model (WDM) - 使用範例 - Assembly (MASM32) - Handle File IRP

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
    pNextDevice PDEVICE_OBJECT ?
MyDeviceExtension ends
    
.code
IrpFile 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_READ
        invoke DbgPrint, $CTA0("IRP_MJ_READ")
    .elseif eax == IRP_MJ_WRITE
        invoke DbgPrint, $CTA0("IRP_MJ_WRITE")
    .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
IrpFile 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]).pNextDevice
              
            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
  
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, $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]).pNextDevice
        invoke IoDeleteDevice, pMyDevice
        fastcall IofCompleteRequest, pIrp, IO_NO_INCREMENT
        ret
    .endif
    IoSkipCurrentIrpStackLocation pIrp
      
    mov eax, pDevExt
    invoke IoCallDriver, (MyDeviceExtension ptr [eax]).pNextDevice, pIrp
    ret
IrpPnp 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 IrpFile
    mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_CLOSE  * (sizeof PVOID)], offset IrpFile
    mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_WRITE  * (sizeof PVOID)], offset IrpFile
    mov (DRIVER_OBJECT ptr [eax]).MajorFunction[IRP_MJ_READ   * (sizeof PVOID)], offset IrpFile
    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

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
   
includelib c:\masm32\lib\user32.lib
includelib c:\masm32\lib\masm32.lib
includelib c:\masm32\lib\msvcrt.lib
includelib c:\masm32\lib\kernel32.lib
   
.const
DEV_NAME    db "\\.\MyDriver",0
MSG_INFO    db "I am error",0
MSG_WR      db "WR: %s, %d",10,13,0
MSG_RD      db "RD: %s, %d",10,13,0
   
.data?
hFile       dd ?
dwRet       dd ?
szBuffer    db 255 dup(?)
   
.code
start:
    invoke CreateFile, offset DEV_NAME, GENERIC_READ or GENERIC_WRITE, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0
    mov hFile, eax
   
    invoke StrLen, offset MSG_INFO
    mov dwRet, eax
  
    invoke crt_printf, offset MSG_WR, offset MSG_INFO, dwRet
    invoke WriteFile, hFile, offset MSG_INFO, dwRet, offset dwRet, 0
  
    invoke crt_memset, offset szBuffer, 0, 255
    invoke ReadFile, hFile, offset szBuffer, 255, offset dwRet, 0
    invoke crt_printf, offset MSG_RD, offset szBuffer, dwRet
  
    invoke CloseHandle, hFile
    invoke ExitProcess, 0
end start
end

完成