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|
////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2014 Microsoft Corporation. All Rights Reserved.
//
// Module Name:
// Framework_WFPSamplerCalloutDriver.cpp
//
// Abstract:
//
// Author:
// Dusty Harper (DHarper)
//
// Revision History:
//
// [ Month ][Day] [Year] - [Revision]-[ Comments ]
// May 01, 2010 - 1.0 - Creation
// December 13, 2013 - 1.1 - Add support for multiple injectors and redirectors, and
// add support for serializing asynchronous
// FWPM_LAYER_STREAM injections
//
////////////////////////////////////////////////////////////////////////////////////////////////////
#include "Framework_WFPSamplerCalloutDriver.h" /// .
#include "Framework_Include.h" /// .
#include "Framework_WFPSamplerCalloutDriver.tmh" /// $(OBJ_PATH)\$(O)\
extern "C"
{
_IRQL_requires_(PASSIVE_LEVEL)
_IRQL_requires_same_
_Function_class_(DRIVER_INITIALIZE)
DRIVER_INITIALIZE DriverEntry;
};
PDEVICE_OBJECT g_pWDMDevice = 0;
NDIS_POOL_DATA* g_pNDISPoolData = 0;
BOOLEAN g_calloutsRegistered = FALSE;
HANDLE g_bfeSubscriptionHandle = 0;
SERIALIZATION_LIST g_bsiSerializationList = {0};
WFPSAMPLER_DEVICE_DATA g_WFPSamplerDeviceData = {0};
DEVICE_EXTENSION g_deviceExtension = {0};
KSPIN_LOCK g_bpeSpinLock;
WDFDRIVER g_WDFDriver;
WDFDEVICE g_WDFDevice;
/**
@private_function="PrvBasicStreamInjectionSerializationListInitialization"
Purpose: Initialize Stream Injection's global serailization list. <br>
<br>
Notes: <br>
<br>
MSDN_Ref: HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF552160.aspx <br>
HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF551171.aspx <br>
HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF547799.aspx <br>
*/
_Success_(return == STATUS_SUCCESS)
NTSTATUS PrvBasicStreamInjectionSerializationListInitialization()
{
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" ---> PrvBasicStreamInjectionSerializationListInitialization()\n");
#endif /// DBG
NTSTATUS status = STATUS_SUCCESS;
KeInitializeSpinLock(&(g_bsiSerializationList.spinLock));
status = WdfWaitLockCreate(WDF_NO_OBJECT_ATTRIBUTES,
&(g_bsiSerializationList.waitLock));
HLPR_BAIL_ON_FAILURE(status);
InitializeListHead(&(g_bsiSerializationList.listHead));
g_bsiSerializationList.numEntries = 0;
HLPR_BAIL_LABEL:
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" <--- PrvBasicStreamInjectionSerializationListInitialization() [status: %#x]",
status);
#endif /// DBG
return status;
}
/**
@private_function="PrvFwpmBfeStateSubscribeChanges"
Purpose: Subscribe to notifications of changes to the BFE service's state. <br>
<br>
Notes: <br>
<br>
MSDN_Ref: HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF550062.aspx <br>
*/
_Success_(return == STATUS_SUCCESS)
NTSTATUS PrvFwpmBfeStateSubscribeChanges()
{
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" ---> PrvFwpmBfeStateSubscribeChanges()\n");
#endif /// DBG
NTSTATUS status = STATUS_SUCCESS;
status = FwpmBfeStateSubscribeChanges(g_pWDMDevice,
SubscriptionBFEStateChangeCallback,
&g_WFPSamplerDeviceData,
&g_bfeSubscriptionHandle);
if(status != STATUS_SUCCESS)
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_ERROR_LEVEL,
" !!!! PrvFwpmBfeStateSubscribeChanges : FwpmBfeStateSubscribeChanges() [status: %#x]\n",
status);
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" <--- PrvFwpmBfeStateSubscribeChanges() [status: %#x]\n",
status);
#endif /// DBG
return status;
}
/**
@private_function="PrvWFPSamplerDeviceDataPopulate"
Purpose: Register the global WFP objects such as: <br>
Callouts <br>
<br>
Notes: <br>
<br>
MSDN_Ref: <br>
*/
_IRQL_requires_(PASSIVE_LEVEL)
_IRQL_requires_same_
_Check_return_
_Success_(return == STATUS_SUCCESS)
NTSTATUS PrvWFPSamplerFwpObjectsAddGlobal(_In_ WFPSAMPLER_DEVICE_DATA* pDeviceData)
{
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" ---> PrvWFPSamplerFwpObjectsAddGlobal()\n");
#endif /// DBG
UNREFERENCED_PARAMETER(pDeviceData);
NT_ASSERT(pDeviceData);
NTSTATUS status = STATUS_SUCCESS;
if(g_calloutsRegistered == FALSE)
{
status = KrnlHlprExposedCalloutsRegister();
HLPR_BAIL_ON_FAILURE(status);
g_calloutsRegistered = TRUE;
}
HLPR_BAIL_LABEL:
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" <--- PrvWFPSamplerFwpObjectsAddGlobal() [status: %#x]\n",
status);
#endif /// DBG
return status;
}
/**
@private_function="PrvWFPSamplerDeviceDataPopulate"
Purpose: Populate the deviceData with the BFE engineHandle and various injection handles. <br>
<br>
Notes: <br>
<br>
MSDN_Ref: HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF550061.aspx <br>
*/
_IRQL_requires_(PASSIVE_LEVEL)
_IRQL_requires_same_
_Check_return_
_Success_(return == STATUS_SUCCESS)
NTSTATUS PrvWFPSamplerDeviceDataPopulate(_Inout_ WFPSAMPLER_DEVICE_DATA* pDeviceData)
{
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" ---> PrvWFPSamplerDeviceDataPopulate()\n");
#endif /// DBG
NT_ASSERT(pDeviceData);
NTSTATUS status = STATUS_SUCCESS;
if(FwpmBfeStateGet() == FWPM_SERVICE_RUNNING)
{
status = KrnlHlprFwpmSessionCreateEngineHandle(&(pDeviceData->pEngineHandle));
HLPR_BAIL_ON_FAILURE(status);
}
/// There are injection handles for each of the supported sublayers that allow injection. This
/// allows us to do multiple injectors in the layer provided that the callouts are in different
/// sublayers.
for(UINT32 index = 0;
index < MAX_INDEX;
index++)
{
#pragma warning(push)
#pragma warning(disable: 6388) /// all injection Handles will be 0 initially
status = KrnlHlprInjectionHandleDataCreate(&(pDeviceData->ppIPv4InboundInjectionHandles[index]),
AF_INET,
FWP_DIRECTION_INBOUND,
index);
HLPR_BAIL_ON_FAILURE(status);
status = KrnlHlprInjectionHandleDataCreate(&(pDeviceData->ppIPv4OutboundInjectionHandles[index]),
AF_INET,
FWP_DIRECTION_OUTBOUND,
index);
HLPR_BAIL_ON_FAILURE(status);
status = KrnlHlprInjectionHandleDataCreate(&(pDeviceData->ppIPv6InboundInjectionHandles[index]),
AF_INET6,
FWP_DIRECTION_INBOUND,
index);
HLPR_BAIL_ON_FAILURE(status);
status = KrnlHlprInjectionHandleDataCreate(&(pDeviceData->ppIPv6OutboundInjectionHandles[index]),
AF_INET6,
FWP_DIRECTION_OUTBOUND,
index);
HLPR_BAIL_ON_FAILURE(status);
status = KrnlHlprInjectionHandleDataCreate(&(pDeviceData->ppInboundInjectionHandles[index]),
AF_UNSPEC,
FWP_DIRECTION_INBOUND,
index);
HLPR_BAIL_ON_FAILURE(status);
status = KrnlHlprInjectionHandleDataCreate(&(pDeviceData->ppOutboundInjectionHandles[index]),
AF_UNSPEC,
FWP_DIRECTION_OUTBOUND,
index);
HLPR_BAIL_ON_FAILURE(status);
#if(NTDDI_VERSION >= NTDDI_WIN8)
pDeviceData->ppRedirectionHandles[index] = &g_pRedirectionHandles[index];
status = KrnlHlprFwpsRedirectHandleCreate(pDeviceData->ppRedirectionHandles[index]);
HLPR_BAIL_ON_FAILURE(status);
#endif /// (NTDDI_VERSION >= NTDDI_WIN8)
#pragma warning(pop)
}
HLPR_BAIL_LABEL:
if(status != STATUS_SUCCESS)
{
for(UINT32 index = 0;
index < MAX_INDEX;
index++)
{
#if(NTDDI_VERSION >= NTDDI_WIN8)
if(pDeviceData->ppRedirectionHandles[index])
KrnlHlprFwpsRedirectHandleDestroy(pDeviceData->ppRedirectionHandles[index]);
#endif /// (NTDDI_VERSION >= NTDDI_WIN8)
if(pDeviceData->ppOutboundInjectionHandles[index])
KrnlHlprInjectionHandleDataDestroy(&(pDeviceData->ppOutboundInjectionHandles[index]));
if(pDeviceData->ppInboundInjectionHandles[index])
KrnlHlprInjectionHandleDataDestroy(&(pDeviceData->ppInboundInjectionHandles[index]));
if(pDeviceData->ppIPv6OutboundInjectionHandles[index])
KrnlHlprInjectionHandleDataDestroy(&(pDeviceData->ppIPv6OutboundInjectionHandles[index]));
if(pDeviceData->ppIPv6InboundInjectionHandles[index])
KrnlHlprInjectionHandleDataDestroy(&(pDeviceData->ppIPv6InboundInjectionHandles[index]));
if(pDeviceData->ppIPv4OutboundInjectionHandles[index])
KrnlHlprInjectionHandleDataDestroy(&(pDeviceData->ppIPv4OutboundInjectionHandles[index]));
if(pDeviceData->ppIPv4InboundInjectionHandles[index])
KrnlHlprInjectionHandleDataDestroy(&(pDeviceData->ppIPv4InboundInjectionHandles[index]));
}
if(pDeviceData->pEngineHandle &&
*(pDeviceData->pEngineHandle))
KrnlHlprFwpmSessionReleaseHandle(pDeviceData->pEngineHandle);
}
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" <--- PrvWFPSamplerDeviceDataPopulate()\n");
#endif /// DBG
return status;
}
/**
@private_function="PrvDriverDeviceAdd"
Purpose: Add the device and configure initial WFP callout driver settings. <br>
<br>
Notes: <br>
<br>
MSDN_Ref: HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF545841.aspx <br>
HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF546090.aspx <br>
HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF545926.aspx <br>
HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF546942.aspx <br>
HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF545854.aspx <br>
HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF546050.aspx <br>
*/
_IRQL_requires_(PASSIVE_LEVEL)
_IRQL_requires_same_
_Check_return_
_Success_(return == STATUS_SUCCESS)
NTSTATUS PrvDriverDeviceAdd(_In_ WDFDRIVER* pWDFDriver)
{
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" ---> PrvDriverDeviceAdd()\n");
#endif /// DBG
NT_ASSERT(pWDFDriver);
NTSTATUS status = STATUS_SUCCESS;
PWDFDEVICE_INIT pWDFDeviceInit = 0;
WDF_OBJECT_ATTRIBUTES attributes = {0};
WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
attributes.EvtCleanupCallback = EventCleanupDeviceObject;
pWDFDeviceInit = WdfControlDeviceInitAllocate(*pWDFDriver,
&SDDL_DEVOBJ_KERNEL_ONLY);
if(pWDFDeviceInit == 0)
{
status = STATUS_UNSUCCESSFUL;
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_ERROR_LEVEL,
" !!!! PrvDriverDeviceAdd : WdfControlDeviceInitAllocate() [status: %#x]\n",
status);
HLPR_BAIL;
}
WdfDeviceInitSetDeviceType(pWDFDeviceInit,
FILE_DEVICE_NETWORK);
status = WdfDeviceCreate(&pWDFDeviceInit,
&attributes,
&g_WDFDevice);
if(status != STATUS_SUCCESS)
{
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_ERROR_LEVEL,
" !!!! PrvDriverDeviceAdd : WdfDeviceCreate() [status: %#x]\n",
status);
HLPR_BAIL;
}
g_pWDMDevice = WdfDeviceWdmGetDeviceObject(g_WDFDevice);
HLPR_BAIL_ON_NULL_POINTER_WITH_STATUS(g_pWDMDevice,
status);
status = RegisterPowerStateChangeCallback(&g_deviceExtension);
HLPR_BAIL_ON_FAILURE(status);
#pragma warning(push)
#pragma warning(disable: 6388) /// g_pNDISPoolData will be 0
status = KrnlHlprNDISPoolDataCreate(&g_pNDISPoolData);
HLPR_BAIL_ON_FAILURE(status);
#pragma warning(pop)
PrvFwpmBfeStateSubscribeChanges();
status = PrvWFPSamplerDeviceDataPopulate(&g_WFPSamplerDeviceData);
HLPR_BAIL_ON_FAILURE(status);
KeInitializeSpinLock(&g_bpeSpinLock);
status = PrvBasicStreamInjectionSerializationListInitialization();
HLPR_BAIL_ON_FAILURE(status);
status = PrvWFPSamplerFwpObjectsAddGlobal(&g_WFPSamplerDeviceData);
HLPR_BAIL_ON_FAILURE(status);
WdfControlFinishInitializing(g_WDFDevice);
HLPR_BAIL_LABEL:
if(status != STATUS_SUCCESS)
{
if(pWDFDeviceInit)
WdfDeviceInitFree(pWDFDeviceInit);
}
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" <--- PrvDriverDeviceAdd() [status: %#x]\n",
status);
#endif /// DBG
return status;
}
/**
@framework_function="DriverEntry"
Purpose: Entry point for the driver. <br>
<br>
Notes: <br>
<br>
MSDN_Ref: HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF540807.aspx <br>
HTTP://MSDN.Microsoft.com/En-US/Library/Windows/Hardware/FF547175.aspx <br>
*/
_IRQL_requires_same_
_Function_class_(DRIVER_INITIALIZE)
NTSTATUS DriverEntry(_In_ PDRIVER_OBJECT pDriverObject,
_In_ PUNICODE_STRING pRegistryPath)
{
WPP_INIT_TRACING(pDriverObject,
pRegistryPath);
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" ---> DriverEntry()\n");
#endif /// DBG
NT_ASSERT(pDriverObject);
NT_ASSERT(pRegistryPath);
NTSTATUS status = STATUS_SUCCESS;
WDF_DRIVER_CONFIG driverConfig;
WDF_OBJECT_ATTRIBUTES attributes;
WDF_DRIVER_CONFIG_INIT(&driverConfig,
WDF_NO_EVENT_CALLBACK);
ExInitializeDriverRuntime(DrvRtPoolNxOptIn);
driverConfig.DriverInitFlags |= WdfDriverInitNonPnpDriver;
driverConfig.EvtDriverUnload = EventDriverUnload;
WDF_OBJECT_ATTRIBUTES_INIT(&attributes);
attributes.EvtCleanupCallback = EventCleanupDriverObject;
status = WdfDriverCreate(pDriverObject,
pRegistryPath,
&attributes,
&driverConfig,
&g_WDFDriver);
if(status != STATUS_SUCCESS)
{
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_ERROR_LEVEL,
" !!!! DriverEntry : WdfDriverCreate() [status: %#x]\n",
status);
HLPR_BAIL;
}
status = PrvDriverDeviceAdd(&g_WDFDriver);
HLPR_BAIL_ON_FAILURE(status);
HLPR_BAIL_LABEL:
#if DBG
DbgPrintEx(DPFLTR_IHVNETWORK_ID,
DPFLTR_INFO_LEVEL,
" <--- DriverEntry() [status: %#x]\n",
status);
#endif /// DBG
if(status != STATUS_SUCCESS)
WPP_CLEANUP(pDriverObject);
return status;
}
|
