Steward

分享是一種喜悅、更是一種幸福

驅動程式 - Windows Driver Model (WDM) - 使用範例 - Assembly (ObjAsm) - Hello, world!

---

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

main.asm

;;
;; Hello, world!
;; https://steward-fu.github.io/website/index.htm
;;

%include @Environ(OBJASM_PATH)/Code/Macros/Model.inc

SysSetup OOP, WDK_WDM, ANSI_STRING

MakeObjects Primer, KDriver, KPnpDevice, KPnpLowerDevice

Object MyDriver, , KDriver
    RedefineMethod Unload
    RedefineMethod AddDevice, PDEVICE_OBJECT
    RedefineMethod DriverEntry, PUNICODE_STRING
    RedefineMethod DriverIrpDispatch, PIRP
ObjectEnd

Object MyDevice, , KPnpDevice
    RedefineMethod Init, PDEVICE_OBJECT
    RedefineMethod DefaultPnp, PKIrp
    RedefineMethod DeviceIrpDispatch, PIRP

    Embed m_pMyLowerDevice, KPnpLowerDevice
ObjectEnd

DECLARE_DRIVER_CLASS MyDriver, NULL

Method MyDriver.DriverEntry, uses esi, pMyRegistry : PUNICODE_STRING
    mov eax, STATUS_SUCCESS
MethodEnd

Method MyDriver.AddDevice, uses esi, pPhyDevice : PDEVICE_OBJECT
    T $OfsCStr("Hello, world%c"), 21h

    New MyDevice
    push eax
    OCall eax::MyDevice.Init, pPhyDevice
    pop eax
MethodEnd

Method MyDriver.DriverIrpDispatch, uses esi, pMyIrp : PIRP
    SetObject esi

    OCall DriverObject
    mov eax, (DRIVER_OBJECT ptr [eax]).DeviceObject
    mov eax, (DEVICE_OBJECT ptr [eax]).DeviceExtension
    OCall eax::MyDevice.DeviceIrpDispatch, pMyIrp
MethodEnd

Method MyDriver.Unload, uses esi
    ACall Unload
MethodEnd

Method MyDevice.Init, uses esi, pPhyDevice : PDEVICE_OBJECT
    ACall Init, \
        $OfsCStrW("\Device\MyDriver"), \
        FILE_DEVICE_UNKNOWN, \
        NULL, \
        0, \
        DO_BUFFERED_IO

    SetObject esi
    OCall [esi].m_pMyLowerDevice::KPnpLowerDevice.Initialize, \
        [esi].m_pMyDevice, \
        pPhyDevice

    OCall SetLowerDevice, addr [esi].m_pMyLowerDevice
MethodEnd

Method MyDevice.DeviceIrpDispatch, uses esi, pMyIrp : PIRP
    ACall DeviceIrpDispatch, pMyIrp
MethodEnd

Method MyDevice.DefaultPnp, uses esi, I : PKIrp
    SetObject esi
    OCall I::KIrp.ForceReuseOfCurrentStackLocationInCalldown
    OCall [esi].m_pMyLowerDevice::KLowerDevice.PnpCall, I
MethodEnd
end

main.inf

[Version]
Signature=$CHICAGO$
Class=Unknown
Provider=%MFGNAME%
DriverVer=01/01/2026,1.0.0.0
 
[Manufacturer]
%MFGNAME%=DeviceList
 
[DeviceList]
%DESCRIPTION%=DriverInstall, *MyDriver
 
[DestinationDirs]
DefaultDestDir=10,System32\Drivers
 
[SourceDisksFiles]
main.sys=1,,,
 
[SourceDisksNames]
1=%INSTDISK%,,,
 
[DriverInstall.NT]
CopyFiles=DriverCopyFiles
 
[DriverCopyFiles]
main.sys,,,2
 
[DriverInstall.NT.Services]
AddService=FILEIO,2,DriverService
 
[DriverService]
ServiceType=1
StartType=3
ErrorControl=1
ServiceBinary=%10%\system32\drivers\main.sys
 
[DriverInstall.NT.HW]
AddReg=DriverHwAddReg
 
[DriverHwAddReg]
HKR,,MyDriver,,""
 
[DriverInstall]
AddReg=DriverAddReg
CopyFiles=DriverCopyFiles
 
[DriverAddReg]
HKR,,DevLoader,,*ntkern
HKR,,NTMPDriver,,main.sys
 
[DriverInstall.HW]
AddReg=DriverHwAddReg
 
[Strings]
MFGNAME="MyDriver"
INSTDISK="MyDriver Disk for Installation"
DESCRIPTION="Windows Device Driver by Steward"

autorun.inf

[autorun]
open=run.bat

run.bat

c:\devcon install e:\main.inf *mydriver
c:\devcon remove e:\main.inf *mydriver

fix.py

import pefile

pe = pefile.PE("main.sys");
pe.OPTIONAL_HEADER.CheckSum = pe.generate_checksum();
pe.write("main.sys");

Makefile

all:
	uasm -coff -c -q -less main.asm
	lld-link main.o /driver /base:0x10000 /subsystem:native /entry:DriverEntry /safeseh:no "/opt/wadk/masm32/lib/wxp/i386/ntoskrnl.lib" /out:main.sys
	python3 fix.py

run:
	genisoimage -f -o cdrom.iso * /opt/wadk/tools/sc.exe
	myqemu winxp

clean:
	rm -rf main.sys main.o cdrom.iso

編譯

$ make
$ make run

完成