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| #include "networkTest.h"
NTSTATUS DriverEntry(IN PDRIVER_OBJECT pDriverObjectNetwork,
IN PUNICODE_STRING RegistryPath )
{
NTSTATUS status;
DbgPrint("Driver Entry Called...");
pDriverObjectNetwork->DriverUnload = OnUnload;
status = HookTDI();
if (STATUS_SUCCESS != status) OnUnload(pDriverObjectNetwork);
DbgPrint("HookTDI Terminated");
return status;
}
void OnUnload (IN PDRIVER_OBJECT pDriverObject){
DbgPrint("Unload Called : \r\n");
ReleaseTDIDevices();
}
NTSTATUS HookTDI(void)
{
NTSTATUS Status;
UNICODE_STRING usDriverName;
PDRIVER_OBJECT DriverObjectToHookPtr;
UINT i;
DbgPrint("HookTDI Called..");
RtlInitUnicodeString(&usDriverName,L"\\Driver\\Tcpip");
Status =
ObReferenceObjectByName(&usDriverName,OBJ_CASE_INSENSITIVE,NULL,0,IoDriverObjectType,KernelMode,NULL,&DriverObjectToHookPtr);
if(Status != STATUS_SUCCESS) return Status;
for(i = 0;i < IRP_MJ_MAXIMUM_FUNCTION;i++) {
RealTDIDriverObject.MajorFunction[i] =
DriverObjectToHookPtr->MajorFunction[i];
DriverObjectToHookPtr->MajorFunction[i] = TDIDeviceDispatch;
}
DbgPrint("HookTDI terminated successfully..");
return STATUS_SUCCESS;
}
NTSTATUS TDIDeviceDispatch(IN PDEVICE_OBJECT DeviceObject,IN PIRP Irp)
{
NTSTATUS Status;
PIO_STACK_LOCATION StackLocationPtr;
DbgPrint("1..");
if(Irp == NULL) return STATUS_SUCCESS;
StackLocationPtr = IoGetCurrentIrpStackLocation(Irp);
if(StackLocationPtr->CompletionRoutine != NULL) StackLocationPtr->Context =
StackLocationPtr->CompletionRoutine;
else StackLocationPtr->Context = NULL;
DbgPrint("2..");
StackLocationPtr->CompletionRoutine =
(PIO_COMPLETION_ROUTINE)TDICompletionRoutine;
StackLocationPtr->Control = SL_INVOKE_ON_SUCCESS |
SL_INVOKE_ON_ERROR |
SL_INVOKE_ON_CANCEL;
Status =
RealTDIDriverObject.MajorFunction[StackLocationPtr->MajorFunction](DeviceObject,Irp,null);
DbgPrint("3..");
return Status;
}
NTSTATUS TDICompletionRoutine(PDEVICE_OBJECT DeviceObject,PIRP Irp,PVOID
Context)
{
PIO_COMPLETION_ROUTINE RealCompletionRoutine = (PIO_COMPLETION_ROUTINE)Context;
DbgPrint("4..");
if(Context != NULL) return RealCompletionRoutine(DeviceObject,Irp,NULL);
else return STATUS_SUCCESS;
}
NTSTATUS ReleaseTDIDevices(void)
{
NTSTATUS Status;
UNICODE_STRING usDriverName;
PDRIVER_OBJECT DriverObjectToHookPtr;
UINT i;
RtlInitUnicodeString(&usDriverName,L"\\Driver\\Tcpip");
DbgPrint("5..");
Status =
ObReferenceObjectByName(&usDriverName,OBJ_CASE_INSENSITIVE,NULL,0,IoDriverObjectType,KernelMode,NULL,&DriverObjectToHookPtr);
if(Status != STATUS_SUCCESS) return Status;
DbgPrint("6..");
for(i = 0;i < IRP_MJ_MAXIMUM_FUNCTION;i++)
DriverObjectToHookPtr->MajorFunction[i] =
RealTDIDriverObject.MajorFunction[i];
return STATUS_SUCCESS;
} |
