//.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- DtWorkItemStructCreate -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
//
static DtStatus DtWorkItemStructCreate(
DtWorkItemStruct* pWorkItemStruct,
DtDvcObject* pDevice)
{
#ifdef WINBUILD
#ifdef USES_KMDF
pWorkItemStruct->m_pIoWorkItem = IoAllocateWorkItem(
WdfDeviceWdmGetDeviceObject(pDevice->m_WdfDevice));
if (pWorkItemStruct->m_pIoWorkItem == NULL)
return DT_STATUS_OUT_OF_RESOURCES;
#else
#ifdef USES_NDIS
// Nothing to do
#else
pWorkItemStruct->m_pIoWorkItem = IoAllocateWorkItem(pDevice->m_pWdmDevice);
if (pWorkItemStruct->m_pIoWorkItem == NULL)
return DT_STATUS_OUT_OF_RESOURCES;
#endif // USES_NDIS
#endif // USES_KMDF
#else
//pWorkItemStruct->m_pWork = kmalloc(sizeof(struct work_struct), GFP_ATOMIC);
//if (pWorkItemStruct->m_pWork == NULL)
// return DT_STATUS_OUT_OF_MEMORY;
#endif
return DT_STATUS_OK;
}
void MouseTrapEvtIoInternalDeviceControl(WDFQUEUE queue, WDFREQUEST request, size_t outputBufferLength, size_t inputBufferLength, ULONG ioControlCode) {
UNREFERENCED_PARAMETER(outputBufferLength);
UNREFERENCED_PARAMETER(inputBufferLength);
NTSTATUS status = STATUS_SUCCESS;
PAGED_CODE(); // Ensure paging is allowed in current IRQL
// Get extension data
WDFDEVICE hDevice = WdfIoQueueGetDevice(queue);
PDEVICE_CONTEXT context = DeviceGetContext(hDevice);
if(ioControlCode == IOCTL_INTERNAL_MOUSE_CONNECT) {
// Only allow one connection.
if(context->UpperConnectData.ClassService == NULL) {
// Copy the connection parameters to the device extension.
PCONNECT_DATA connectData;
size_t length;
status = WdfRequestRetrieveInputBuffer(request, sizeof(CONNECT_DATA), &connectData, &length);
if(NT_SUCCESS(status)) {
// Hook into the report chain (I am not sure this is correct)
context->UpperConnectData = *connectData;
connectData->ClassDeviceObject = WdfDeviceWdmGetDeviceObject(hDevice);
#pragma warning(push)
#pragma warning(disable:4152)
connectData->ClassService = MouseTrapServiceCallback;
#pragma warning(pop)
}
else {
DebugPrint(("[MouseTrap] WdfRequestRetrieveInputBuffer failed %x\n", status));
}
}
else {
status = STATUS_SHARING_VIOLATION;
}
}
else if(ioControlCode == IOCTL_INTERNAL_MOUSE_DISCONNECT) {
status = STATUS_NOT_IMPLEMENTED;
}
// Complete on error
if(!NT_SUCCESS(status)) {
WdfRequestComplete(request, status);
return;
}
// Dispatch to higher level driver
WDF_REQUEST_SEND_OPTIONS options;
WDF_REQUEST_SEND_OPTIONS_INIT(&options, WDF_REQUEST_SEND_OPTION_SEND_AND_FORGET);
if(WdfRequestSend(request, WdfDeviceGetIoTarget(hDevice), &options) == FALSE) {
NTSTATUS status = WdfRequestGetStatus(request);
DebugPrint(("[MouseTrap] WdfRequestSend failed: 0x%x\n", status));
WdfRequestComplete(request, status);
}
}
NTSTATUS
SimSensorDeviceD0Entry (
_In_ WDFDEVICE Device,
_In_ WDF_POWER_DEVICE_STATE PreviousState
)
/*++
Routine Description:
This routine is invoked when the device enters the D0 power state, and
registers for the power policy setting that drives the virtual interrupt.
Arguments:
Device - Supplies a handle to the device that is powering up.
PreviousState - Supplies the previous power state of the device.
Return Value:
NTSTATUS
--*/
{
PFDO_DATA DevExt;
PVOID Handle;
NTSTATUS Status;
UNREFERENCED_PARAMETER(PreviousState);
Status = PoRegisterPowerSettingCallback(
WdfDeviceWdmGetDeviceObject(Device),
&GUID_VIRTUAL_TEMPERATURE_SENSOR,
SimSensorSettingCallback,
(PVOID)Device,
&Handle);
if (NT_SUCCESS(Status)) {
DevExt = GetDeviceExtension(Device);
DevExt->Sensor.PolicyHandle = Handle;
}
return Status;
}
__drv_sameIRQL
NTSTATUS
BthEchoCliOpenRemoteConnection(
__in PBTHECHOSAMPLE_CLIENT_CONTEXT DevCtx,
__in WDFFILEOBJECT FileObject,
__in WDFREQUEST Request
)
/*++
Description:
This routine is invoked by BthEchoCliEvtDeviceFileCreate.
In this routine we send down open channel BRB.
This routine allocates open channel BRB. If the request
is sent down successfully completion routine needs to free
this BRB.
Arguments:
__in PBTHECHOSAMPLE_CLIENT_CONTEXT DevCtx -
__in WDFFILEOBJECT FileObject -
__in WDFREQUEST Request -
Return Value:
NTSTATUS Status code.
--*/
{
NTSTATUS status;
WDFOBJECT connectionObject;
struct _BRB_L2CA_OPEN_CHANNEL *brb = NULL;
PBTHECHO_CONNECTION connection = NULL;
PBTHECHOSAMPLE_CLIENT_FILE_CONTEXT fileCtx = GetFileContext(FileObject);
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_CONNECT,
"Connect request");
//
// Create the connection object that would store information
// about the open channel
//
// Set file object as the parent for this connection object
//
status = BthEchoConnectionObjectCreate(
&DevCtx->Header,
FileObject, //parent
&connectionObject
);
if (!NT_SUCCESS(status))
{
goto exit;
}
connection = GetConnectionObjectContext(connectionObject);
connection->ConnectionState = ConnectionStateConnecting;
//
// Get the BRB from request context and initialize it as
// BRB_L2CA_OPEN_CHANNEL BRB
//
brb = (struct _BRB_L2CA_OPEN_CHANNEL *)GetRequestContext(Request);
DevCtx->Header.ProfileDrvInterface.BthReuseBrb(
(PBRB)brb,
BRB_L2CA_OPEN_CHANNEL
);
brb->Hdr.ClientContext[0] = connection;
brb->BtAddress = DevCtx->ServerBthAddress;
brb->Psm = fileCtx->ServerPsm;
brb->ChannelFlags = CF_ROLE_EITHER;
brb->ConfigOut.Flags = 0;
brb->ConfigIn.Flags = 0;
brb->ConfigOut.Flags |= CFG_MTU;
brb->ConfigOut.Mtu.Max = L2CAP_DEFAULT_MTU;
brb->ConfigOut.Mtu.Min = L2CAP_MIN_MTU;
brb->ConfigOut.Mtu.Preferred = L2CAP_DEFAULT_MTU;
brb->ConfigIn.Flags = CFG_MTU;
brb->ConfigIn.Mtu.Max = brb->ConfigOut.Mtu.Max;
brb->ConfigIn.Mtu.Min = brb->ConfigOut.Mtu.Min;
brb->ConfigIn.Mtu.Preferred = brb->ConfigOut.Mtu.Max;
//
// Get notificaiton about remote disconnect
//
brb->CallbackFlags = CALLBACK_DISCONNECT;
brb->Callback = &BthEchoCliIndicationCallback;
brb->CallbackContext = connection;
brb->ReferenceObject = (PVOID) WdfDeviceWdmGetDeviceObject(DevCtx->Header.Device);
brb->IncomingQueueDepth = 50;
status = BthEchoSharedSendBrbAsync(
DevCtx->Header.IoTarget,
Request,
(PBRB) brb,
sizeof(*brb),
BthEchoCliRemoteConnectCompletion,
brb //Context
);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_ERROR, DBG_CONNECT,
"Sending brb for opening connection failed, returning status code %!STATUS!\n", status);
goto exit;
}
exit:
if(!NT_SUCCESS(status))
{
if (connection)
{
//
// Set the right state to facilitate debugging
//
connection->ConnectionState = ConnectionStateConnectFailed;
}
//
// In case of failure of this routine we will fail
// Create which will delete file object and since connection object
// is child of the file object, it will be deleted too
//
}
return status;
}
NTSTATUS
AmccPciAddDevice(
_In_ WDFDRIVER Driver,
_Inout_ PWDFDEVICE_INIT DeviceInit
)
/*++
Routine Description:
EvtDeviceAdd is called by the framework in response to AddDevice
call from the PnP manager. It is responsible for initializing and
creating a WDFDEVICE object.
Any work that should be done after the object is created should be
deferred until EvtDeviceSoftwareInit, as that callback will be made
with the device lock held (if there is one.)
Arguments:
Driver - Handle to a framework driver object created in DriverEntry
DeviceInit - Pointer to a framework-allocated WDFDEVICE_INIT structure.
Return Value:
NTSTATUS
--*/
{
NTSTATUS status = STATUS_SUCCESS;
WDF_PNPPOWER_EVENT_CALLBACKS pnpPowerCallbacks;
WDF_OBJECT_ATTRIBUTES fdoAttributes;
WDF_INTERRUPT_CONFIG interruptConfig;
WDF_OBJECT_ATTRIBUTES interruptAttributes;
WDF_IO_QUEUE_CONFIG ioQueueConfig;
PAMCC_DEVICE_EXTENSION devExt;
WDFQUEUE hQueue;
WDFDEVICE device;
PAGED_CODE();
TraceEvents(TRACE_LEVEL_INFORMATION, AMCC_TRACE_INIT,
"AmccPciAddDevice: 0x%p", Driver);
//
// Zero out the PnpPowerCallbacks structure.
//
WDF_PNPPOWER_EVENT_CALLBACKS_INIT(&pnpPowerCallbacks);
//
// Set Callbacks for any of the functions we are interested in.
// If no callback is set, Framework will take the default action
// by itself.
//
pnpPowerCallbacks.EvtDevicePrepareHardware = AmccPciEvtDevicePrepareHardware;
pnpPowerCallbacks.EvtDeviceReleaseHardware = AmccPciEvtDeviceReleaseHardware;
pnpPowerCallbacks.EvtDeviceD0Entry = AmccPciEvtDeviceD0Entry;
pnpPowerCallbacks.EvtDeviceD0Exit = AmccPciEvtDeviceD0Exit;
//
// Register the PnP Callbacks..
//
WdfDeviceInitSetPnpPowerEventCallbacks(DeviceInit, &pnpPowerCallbacks);
//
// Set various attributes for this device
//
WdfDeviceInitSetIoType( DeviceInit, WdfDeviceIoDirect );
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&fdoAttributes, AMCC_DEVICE_EXTENSION);
fdoAttributes.EvtCleanupCallback = AmccPciContextCleanup;
//
// We want all the queue callbacks, cancel routine, and DpcForIsr to be serialized
// at the device level, so we don't have worry about any synchronization issues.
//
fdoAttributes.SynchronizationScope = WdfSynchronizationScopeDevice;
status = WdfDeviceCreate( &DeviceInit, &fdoAttributes, &device );
if ( !NT_SUCCESS(status) ) {
TraceEvents(TRACE_LEVEL_ERROR, AMCC_TRACE_INIT,
"WdfDeviceInitialize failed 0x%X", status);
return status;
}
//
// Device Initialization is complete.
// Get the Device Extension and initialize it.
//
devExt = AmccPciGetDevExt(device);
devExt->Device = device;
TraceEvents(TRACE_LEVEL_INFORMATION, AMCC_TRACE_INIT,
"PDO 0x%p, FDO 0x%p, DevExt 0x%p",
WdfDeviceWdmGetPhysicalDevice(device),
WdfDeviceWdmGetDeviceObject( device ), devExt);
//
// This device generates an interrupt. So create an interrupt object which
// will later be associated with the devices resources and connected
// by the Framework.
//
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&interruptAttributes, INTERRUPT_DATA);
//
// Configure the Interrupt object
//
WDF_INTERRUPT_CONFIG_INIT(&interruptConfig,
AmccPciEvtInterruptIsr,
AmccPciEvtInterruptDpc);
status = WdfInterruptCreate(device,
&interruptConfig,
&interruptAttributes,
&devExt->WdfInterrupt);
if (!NT_SUCCESS (status))
{
TraceEvents(TRACE_LEVEL_ERROR, AMCC_TRACE_INIT,
"WdfInterruptCreate failed: %!STATUS!\n", status);
return status;
}
//
// The S5933 requires DMA buffers be aligned on a 32-bit boundary
//
// NOTE: Read the existing alignment value. If it is greater than
// or equal then keep it. If it is less then update the
// alignment requirement field with this device's required
// value.
//
// NOTE: See the MSDN section titled "Initializing a Device Object"
// for details on how to specify this alignment value.
//
// NOTE: AMCC5933_ALIGNMENT__32BITS is equated to (4-1) for 32-bit
// alignment.
//
{
ULONG alignReq;
alignReq = WdfDeviceGetAlignmentRequirement( device );
if (alignReq < AMCC5933_ALIGNMENT__32BITS) {
//
// Set the S5933 alignment requirement as new value.
//
WdfDeviceSetAlignmentRequirement( device,
AMCC5933_ALIGNMENT__32BITS);
}
}
//
// Register I/O callbacks.
//
// Create a sequential IO Queue for serial operation. That means all the requests (Read/Write
// & IOCTL) are serialized to the device. Until the driver completes the request presented to it,
// the framework will not schedule another one. The requests held in the framework will be
// cancelled automatically if the source of request (application) terminate or cancels it.
//
WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE( &ioQueueConfig,
WdfIoQueueDispatchSequential);
ioQueueConfig.EvtIoDefault = AmccPciEvtIoDefault;
//
// By default, Static Driver Verifier (SDV) displays a warning if it
// doesn't find the EvtIoStop callback on a power-managed queue.
// The 'assume' below causes SDV to suppress this warning. If the driver
// has not explicitly set PowerManaged to WdfFalse, the framework creates
// power-managed queues when the device is not a filter driver. Normally
// the EvtIoStop is required for power-managed queues, but for this driver
// it is not needed b/c the driver doesn't hold on to the requests for
// long time or forward them to other drivers.
// If the EvtIoStop callback is not implemented, the framework waits for
// all driver-owned requests to be done before moving in the Dx/sleep
// states or before removing the device, which is the correct behavior
// for this type of driver. If the requests were taking an indeterminate
// amount of time to complete, or if the driver forwarded the requests
// to a lower driver/another stack, the queue should have an
// EvtIoStop/EvtIoResume.
//
__analysis_assume(ioQueueConfig.EvtIoStop != 0);
status = WdfIoQueueCreate( device,
&ioQueueConfig,
WDF_NO_OBJECT_ATTRIBUTES,
&hQueue );
__analysis_assume(ioQueueConfig.EvtIoStop == 0);
if (!NT_SUCCESS (status)) {
//
// We don't have worry about deleting the device here because framework will automatically
// cleanup that when the driver unloads.
//
TraceEvents(TRACE_LEVEL_ERROR, AMCC_TRACE_INIT,
"WdfIoQueueCreate failed %!STATUS!", status);
return status;
}
//
// Register an interface so that application can find and talk to us.
// NOTE: See the note in Public.h concerning this GUID value.
//
status = WdfDeviceCreateDeviceInterface( device,
(LPGUID) &GUID_DEVINTERFACE_AMCC_PCI,
NULL );
if (!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, AMCC_TRACE_INIT,
"<-- AMCCAddDevice: WdfDeviceCreateDeviceInterface failed %!STATUS!", status);
return status;
}
devExt->MaximumTransferLength = MAXIMUM_REQUEST_CONTEXT_LENGTH;
//
// Set the maximum physical pages for now, but this value may change if
// there aren't enough map registers
//
devExt->MaximumPhysicalPages = MAXIMUM_PHYSICAL_PAGES;
return status;
}
NTSTATUS
PLxEvtDeviceAdd(
IN WDFDRIVER Driver,
IN PWDFDEVICE_INIT DeviceInit
)
/*++
Routine Description:
EvtDeviceAdd is called by the framework in response to AddDevice
call from the PnP manager. Here the driver should register all the
PNP, power and Io callbacks, register interfaces and allocate other
software resources required by the device. The driver can query
any interfaces or get the config space information from the bus driver
but cannot access hardware registers or initialize the device.
Arguments:
Return Value:
--*/
{
KdPrint(("Entry PLxEvtDeviceAdd Routine"));
NTSTATUS status = STATUS_SUCCESS;
WDF_PNPPOWER_EVENT_CALLBACKS pnpPowerCallbacks;
WDF_OBJECT_ATTRIBUTES attributes;
WDFDEVICE device;
PDEVICE_EXTENSION devExt = NULL;
UNREFERENCED_PARAMETER( Driver );
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP, "--> PLxEvtDeviceAdd");
PAGED_CODE();
WdfDeviceInitSetIoType(DeviceInit, WdfDeviceIoDirect);
//
// Zero out the PnpPowerCallbacks structure.
//
WDF_PNPPOWER_EVENT_CALLBACKS_INIT(&pnpPowerCallbacks);
//
// Set Callbacks for any of the functions we are interested in.
// If no callback is set, Framework will take the default action
// by itself.
//
pnpPowerCallbacks.EvtDevicePrepareHardware = PLxEvtDevicePrepareHardware;
pnpPowerCallbacks.EvtDeviceReleaseHardware = PLxEvtDeviceReleaseHardware;
//
// These two callbacks set up and tear down hardware state that must be
// done every time the device moves in and out of the D0-working state.
//
pnpPowerCallbacks.EvtDeviceD0Entry = PLxEvtDeviceD0Entry;
pnpPowerCallbacks.EvtDeviceD0Exit = PLxEvtDeviceD0Exit;
//
// Register the PnP Callbacks..
//
WdfDeviceInitSetPnpPowerEventCallbacks(DeviceInit, &pnpPowerCallbacks);
//
// Initialize Fdo Attributes.
//
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&attributes, DEVICE_EXTENSION);
//
// By opting for SynchronizationScopeDevice, we tell the framework to
// synchronize callbacks events of all the objects directly associated
// with the device. In this driver, we will associate queues and
// and DpcForIsr. By doing that we don't have to worrry about synchronizing
// access to device-context by Io Events and DpcForIsr because they would
// not concurrently ever. Framework will serialize them by using an
// internal device-lock.
//
attributes.SynchronizationScope = WdfSynchronizationScopeDevice;
//
// Create the device
//
status = WdfDeviceCreate( &DeviceInit, &attributes, &device );
if (!NT_SUCCESS(status)) {
//
// Device Initialization failed.
//
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"DeviceCreate failed %!STATUS!", status);
return status;
}
//
// Get the DeviceExtension and initialize it. PLxGetDeviceContext is an inline function
// defined by WDF_DECLARE_CONTEXT_TYPE_WITH_NAME macro in the
// private header file. This function will do the type checking and return
// the device context. If you pass a wrong object a wrong object handle
// it will return NULL and assert if run under framework verifier mode.
//
devExt = PLxGetDeviceContext(device);
devExt->Device = device;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP,
" AddDevice PDO (0x%p) FDO (0x%p), DevExt (0x%p)",
WdfDeviceWdmGetPhysicalDevice(device),
WdfDeviceWdmGetDeviceObject(device), devExt);
//
// Tell the Framework that this device will need an interface
//
// NOTE: See the note in Public.h concerning this GUID value.
//
status = WdfDeviceCreateDeviceInterface( device,
(LPGUID) &GUID_PLX_INTERFACE,
NULL );
if (!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_PNP,
"<-- DeviceCreateDeviceInterface "
"failed %!STATUS!", status);
return status;
}
//
// Set the idle and wait-wake policy for this device.
//
status = PLxSetIdleAndWakeSettings(devExt);
if (!NT_SUCCESS (status)) {
//
// NOTE: The attempt to set the Idle and Wake options
// is a best-effort try. Failure is probably due to
// the non-driver environmentals, such as the system,
// bus or OS indicating that Wake is not supported for
// this case.
// All that being said, it probably not desirable to
// return the failure code as it would cause the
// AddDevice to fail and Idle and Wake are probably not
// "must-have" options.
//
// You must decide for your case whether Idle/Wake are
// "must-have" options...but my guess is probably not.
//
#if 1
status = STATUS_SUCCESS;
#else
return status;
#endif
}
//
// Initalize the Device Extension.
//
status = PLxInitializeDeviceExtension(devExt);
if (!NT_SUCCESS(status)) {
return status;
}
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_PNP,
"<-- PLxEvtDeviceAdd %!STATUS!", status);
KdPrint(("Leave PLxEvtDeviceAdd Routine"));
return status;
}
NTSTATUS fscc_card_init(struct fscc_card *card,
WDFCMRESLIST ResourcesTranslated,
WDFDEVICE port_device)
{
unsigned bar_num = 0;
unsigned i = 0;
PDEVICE_OBJECT pdo;
card->device_id = 0;
for (i = 0; i < WdfCmResourceListGetCount(ResourcesTranslated); i++) {
PCM_PARTIAL_RESOURCE_DESCRIPTOR descriptor;
descriptor = WdfCmResourceListGetDescriptor(ResourcesTranslated, i);
if (!descriptor)
return STATUS_DEVICE_CONFIGURATION_ERROR;
switch (descriptor->Type) {
case CmResourceTypePort:
switch (i) {
case 0:
bar_num = 2;
break;
case 2:
bar_num = 0;
break;
}
card->bar[bar_num].address =
ULongToPtr(descriptor->u.Port.Start.LowPart);
card->bar[bar_num].memory_mapped = FALSE;
break;
case CmResourceTypeMemory:
switch (i) {
case 0:
bar_num = 2;
break;
case 2:
bar_num = 0;
break;
}
card->bar[bar_num].address =
MmMapIoSpace(descriptor->u.Memory.Start,
descriptor->u.Memory.Length,
MmNonCached);
card->bar[bar_num].memory_mapped = TRUE;
break;
}
}
pdo = WdfDeviceWdmGetDeviceObject(port_device);
PCIReadConfigWord(pdo, 0x02, &card->device_id);
return STATUS_SUCCESS;
}
NTSTATUS
kmdf1394_EvtDeviceAdd (
IN WDFDRIVER Driver,
IN PWDFDEVICE_INIT DeviceInit)
/*++
Routine Description:
EvtDeviceAdd is called by the framework in response to AddDevice
call from the PnP manager.
Arguments:
Driver - Handle to a framework driver object created in DriverEntry
DeviceInit - Pointer to a framework-allocated WDFDEVICE_INIT structure.
Return Value:
NTSTATUS
--*/
{
NTSTATUS ntStatus = STATUS_SUCCESS;
PDEVICE_EXTENSION deviceExtension;
WDF_PNPPOWER_EVENT_CALLBACKS pnpPowerCallbacks;
WDF_OBJECT_ATTRIBUTES fdoAttributes,lockAttributes;
WDFDEVICE device;
WDF_DEVICE_PNP_CAPABILITIES pnpCaps;
WDF_IO_QUEUE_CONFIG ioQueueConfig;
UNREFERENCED_PARAMETER (Driver);
PAGED_CODE();
Enter();
//
// Zero out the PnpPowerCallbacks structure.
//
WDF_PNPPOWER_EVENT_CALLBACKS_INIT(&pnpPowerCallbacks);
//
// Set Callbacks for any of the functions we are interested in.
// If no callback is set, Framework will take the default action
// by itself.
//
// These two callbacks set up and tear down hardware state,
// specifically that which only has to be done once.
//
pnpPowerCallbacks.EvtDevicePrepareHardware = kmdf1394_EvtPrepareHardware;
pnpPowerCallbacks.EvtDeviceReleaseHardware = kmdf1394_EvtReleaseHardware;
pnpPowerCallbacks.EvtDeviceSelfManagedIoCleanup = \
kmdf1394_EvtDeviceSelfManagedIoCleanup;
pnpPowerCallbacks.EvtDeviceD0Entry = kmdf1394_EvtDeviceD0Entry;
pnpPowerCallbacks.EvtDeviceD0Exit = kmdf1394_EvtDeviceD0Exit;
//
// Register the PnP and power callbacks. Power policy related callbacks
// will be registered// later in SotwareInit.
//
WdfDeviceInitSetPnpPowerEventCallbacks (DeviceInit, &pnpPowerCallbacks);
if (!NT_SUCCESS (ntStatus))
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfDeviceInitSetPnpPowerEventCallbacks failed %!STATUS!\n",
ntStatus);
return ntStatus;
}
//
// We'll allow multiple handles to be opened to this device driver
// so we'll set exclusivity to FALSE.
//
WdfDeviceInitSetExclusive (DeviceInit, FALSE);
//
// Specify the size and type of device context.
//
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE (&fdoAttributes, DEVICE_EXTENSION);
ntStatus = WdfDeviceCreate (&DeviceInit, &fdoAttributes, &device);
if (!NT_SUCCESS (ntStatus))
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfDeviceInitialize failed %!STATUS!\n",
ntStatus);
return ntStatus;
}
deviceExtension = GetDeviceContext (device);
deviceExtension->WdfDevice = device;
DoTraceLevelMessage(TRACE_LEVEL_INFORMATION,
TRACE_FLAG_PNP,
"PDO(0x%p) FDO(0x%p), Lower(0x%p) DevExt (0x%p)\n",
WdfDeviceWdmGetPhysicalDevice (device),
WdfDeviceWdmGetDeviceObject (device),
WdfDeviceWdmGetAttachedDevice(device),
deviceExtension);
//
// Tell the Framework that this device will need an interface so that
// application can interact with it.
//
ntStatus = WdfDeviceCreateDeviceInterface (
device,
(LPGUID) &GUID_KMDF_VDEV,
NULL);
if (!NT_SUCCESS (ntStatus))
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfDeviceCreateDeviceInterface failed %!STATUS!\n",
ntStatus);
return ntStatus;
}
//
// Tell the framework to set the SurpriseRemovalOK in the DeviceCaps so
// that you don't get the popup in usermode (on Win2K) when you surprise
// remove the device.
//
WDF_DEVICE_PNP_CAPABILITIES_INIT (&pnpCaps);
pnpCaps.SurpriseRemovalOK = WdfTrue;
WdfDeviceSetPnpCapabilities (device, &pnpCaps);
//
// save the device object we created as our physical device object
//
deviceExtension->PhysicalDeviceObject = \
WdfDeviceWdmGetPhysicalDevice (device);
if (NULL == deviceExtension->PhysicalDeviceObject)
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfDeviceWdmGetPhysicalDevice: NULL DeviceObject\n");
return STATUS_UNSUCCESSFUL;
}
//
// This is our default IoTarget representing the deviceobject
// we are attached to.
//
deviceExtension->StackIoTarget = WdfDeviceGetIoTarget(device);
deviceExtension->StackDeviceObject = WdfDeviceWdmGetAttachedDevice(device);
if (NULL == deviceExtension->StackDeviceObject)
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfDeviceWdmGetAttachedDevice: NULL DeviceObject\n");
return STATUS_UNSUCCESSFUL;
}
//
// Create a automanaged queue for dispatching ioctl requests.
// All other requests are automatically failed by the framework.
// By creating an automanaged queue we don't have to worry about
// PNP/Power synchronization.
// A default queue gets all the requests that are not
// configure-fowarded using WdfDeviceConfigureRequestDispatching.
//
WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE (
&ioQueueConfig,
WdfIoQueueDispatchParallel);
ioQueueConfig.EvtIoDeviceControl = kmdf1394_EvtIoDeviceControl;
__analysis_assume(ioQueueConfig.EvtIoStop != 0);
ntStatus = WdfIoQueueCreate (
deviceExtension->WdfDevice,
&ioQueueConfig,
WDF_NO_OBJECT_ATTRIBUTES,
&deviceExtension->IoctlQueue);
__analysis_assume(ioQueueConfig.EvtIoStop == 0);
if (!NT_SUCCESS (ntStatus))
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfIoQueueCreate failed %!STATUS!\n",
ntStatus);
return ntStatus;
}
//
// Create an additional queue to hold bus reset requests.
//
WDF_IO_QUEUE_CONFIG_INIT (&ioQueueConfig, WdfIoQueueDispatchManual);
__analysis_assume(ioQueueConfig.EvtIoStop != 0);
ntStatus = WdfIoQueueCreate (
deviceExtension->WdfDevice,
&ioQueueConfig,
WDF_NO_OBJECT_ATTRIBUTES,
&deviceExtension->BusResetRequestsQueue);
__analysis_assume(ioQueueConfig.EvtIoStop == 0);
if(!NT_SUCCESS (ntStatus))
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"Error Creating Reset Request Queue %!STATUS!\n",
ntStatus);
return ntStatus;
}
WDF_OBJECT_ATTRIBUTES_INIT (&lockAttributes);
lockAttributes.ParentObject = device;
ntStatus = WdfSpinLockCreate (&lockAttributes,&deviceExtension->CromSpinLock);
if(!NT_SUCCESS (ntStatus))
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfSpinLockCreate CromSpinLock failed %!STATUS!\n",
ntStatus);
return ntStatus;
}
WDF_OBJECT_ATTRIBUTES_INIT (&lockAttributes);
lockAttributes.ParentObject = device;
ntStatus = WdfSpinLockCreate (
&lockAttributes,
&deviceExtension->AsyncSpinLock);
if(!NT_SUCCESS (ntStatus))
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfSpinLockCreate AsyncSpinLock failed %!STATUS!\n",
ntStatus);
return ntStatus;
}
WDF_OBJECT_ATTRIBUTES_INIT (&lockAttributes);
lockAttributes.ParentObject = device;
ntStatus = WdfSpinLockCreate (
&lockAttributes,
&deviceExtension->IsochSpinLock );
if(!NT_SUCCESS (ntStatus))
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfSpinLockCreate IsochSpinLock failed %!STATUS!\n",
ntStatus);
return ntStatus;
}
WDF_OBJECT_ATTRIBUTES_INIT (&lockAttributes);
lockAttributes.ParentObject = device;
ntStatus = WdfSpinLockCreate (
&lockAttributes,
&deviceExtension->IsochResourceSpinLock);
if(!NT_SUCCESS (ntStatus))
{
DoTraceLevelMessage(TRACE_LEVEL_ERROR,
TRACE_FLAG_PNP,
"WdfSpinLockCreate IsochResourceSpinLock failed %!STATUS!\n",
ntStatus);
return ntStatus;
}
InitializeListHead (&deviceExtension->CromData);
InitializeListHead (&deviceExtension->AsyncAddressData);
InitializeListHead (&deviceExtension->IsochDetachData);
InitializeListHead (&deviceExtension->IsochResourceData);
ExitS(ntStatus);
return(ntStatus);
} // kmdf1394_PnpAddDevice
NTSTATUS
vJoy_CreateRawPdo(
WDFDEVICE Device,
ULONG InstanceNo
)
/*++
Routine Description:
This routine creates and initialize a PDO.
Arguments:
Return Value:
NT Status code.
--*/
{
NTSTATUS status;
PWDFDEVICE_INIT pDeviceInit = NULL;
PRPDO_DEVICE_DATA pdoData = NULL;
WDFDEVICE hChild = NULL;
WDF_OBJECT_ATTRIBUTES pdoAttributes;
WDF_DEVICE_PNP_CAPABILITIES pnpCaps;
WDF_IO_QUEUE_CONFIG ioQueueConfig;
WDFQUEUE queue;
WDF_DEVICE_STATE deviceState;
PDEVICE_EXTENSION devExt;
DECLARE_CONST_UNICODE_STRING(deviceId,VJOY_RAW_DEVICE_ID );
//DECLARE_CONST_UNICODE_STRING(hardwareId,VJOY_HARDWARE_ID );
DECLARE_CONST_UNICODE_STRING(deviceLocation,L"vJoy Raw Device\0" );
DECLARE_UNICODE_STRING_SIZE(buffer, MAX_ID_LEN);
PDEVICE_OBJECT ChildDeviceObject;
PDEVICE_OBJECT ParentDeviceObject;
DECLARE_CONST_UNICODE_STRING(
SDDL_DEVOBJ_SYS_ALL_ADM_RWX_WORLD_R_RES_R,
L"D:P(A;;GA;;;SY)(A;;GRGWGX;;;BA)(A;;GR;;;WD)(A;;GR;;;RC)"
);
DECLARE_CONST_UNICODE_STRING(
SDDL_DEVOBJ_SYS_ALL_ADM_RWX_WORLD_RWX_RES_R,
L"D:P(A;;GA;;;SY)(A;;GRGWGX;;;BA)(A;;GRGWGX;;;WD)(A;;GR;;;RC)"
);
int iInterface;
WCHAR RefStr[20];
UNICODE_STRING RefStr2;
WDF_FILEOBJECT_CONFIG FileObjInit;
WDF_OBJECT_ATTRIBUTES FileObjAttributes;
WDF_OBJECT_ATTRIBUTES LockAttributes;
TraceEvents(TRACE_LEVEL_INFORMATION, DBG_INIT, "Entered vJoy_CreateRawPdo\n");
//
// Allocate a WDFDEVICE_INIT structure and set the properties
// so that we can create a device object for the child.
//
pDeviceInit = WdfPdoInitAllocate(Device);
if (pDeviceInit == NULL) {
status = STATUS_INSUFFICIENT_RESOURCES;
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfPdoInitAllocate", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
//
// Mark the device RAW so that the child device can be started
// and accessed without requiring a function driver. Since we are
// creating a RAW PDO, we must provide a class guid.
//
status = WdfPdoInitAssignRawDevice(pDeviceInit, &GUID_DEVINTERFACE_VJOY);
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfPdoInitAssignRawDevice", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
// TODO: Assign correct SDDL
////
status = WdfDeviceInitAssignSDDLString(pDeviceInit,
&SDDL_DEVOBJ_SYS_ALL_ADM_RWX_WORLD_RWX_RES_R);
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfDeviceInitAssignSDDLString", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
//
// Assign DeviceID - This will be reported to IRP_MN_QUERY_ID/BusQueryDeviceID
//
status = WdfPdoInitAssignDeviceID(pDeviceInit, &deviceId);
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfPdoInitAssignDeviceID", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
//
// We could be enumerating more than one children if the filter attaches
// to multiple instances of keyboard, so we must provide a
// BusQueryInstanceID. If we don't, system will throw CA bugcheck.
//
status = RtlUnicodeStringPrintf(&buffer, VJOY_DEVICE_INSTANCE, InstanceNo);
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"RtlUnicodeStringPrintf (1)", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
status = WdfPdoInitAssignInstanceID(pDeviceInit, &buffer);
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfPdoInitAssignInstanceID", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
//
// Provide a description about the device. This text is usually read from
// the device. This text is displayed momentarily by the PnP manager while
// it's looking for a matching INF. If it finds one, it uses the Device
// Description from the INF file to display in the device manager.
// Since our device is raw device and we don't provide any hardware ID
// to match with an INF, this text will be displayed in the device manager.
//
status = RtlUnicodeStringPrintf(&buffer,VJOY_DEVICE_TEXT_409 ); // English - United States
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"RtlUnicodeStringPrintf (2)", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
//
// You can call WdfPdoInitAddDeviceText multiple times, adding device
// text for multiple locales. When the system displays the text, it
// chooses the text that matches the current locale, if available.
// Otherwise it will use the string for the default locale.
// The driver can specify the driver's default locale by calling
// WdfPdoInitSetDefaultLocale.
//
status = WdfPdoInitAddDeviceText(pDeviceInit,
&buffer,
&deviceLocation,
0x409 // English - United States
);
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfPdoInitAddDeviceText (1)", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
#if 0
// Hebrew (No real ned - just for fun)
status = RtlUnicodeStringPrintf(&buffer,VJOY_DEVICE_TEXT_40D, InstanceNo ); // Hebrew
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"RtlUnicodeStringPrintf (3)", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
status = WdfPdoInitAddDeviceText(pDeviceInit,
&buffer,
&deviceLocation,
0x40D // Hebrew
);
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfPdoInitAddDeviceText (2)", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
#endif // 0
WdfPdoInitSetDefaultLocale(pDeviceInit, 0x409); // English - United States
WdfDeviceInitSetExclusive(pDeviceInit, FALSE);
// Create a WDFFILEOBJECT
WDF_OBJECT_ATTRIBUTES_INIT(&FileObjAttributes);
WDF_OBJECT_ATTRIBUTES_SET_CONTEXT_TYPE(&FileObjAttributes, FILEOBJECT_EXTENSION);
WDF_FILEOBJECT_CONFIG_INIT(&FileObjInit, vJoy_EvtDeviceFileCreate, WDF_NO_EVENT_CALLBACK, vJoy_EvtFileCleanup);
WdfDeviceInitSetFileObjectConfig(pDeviceInit, &FileObjInit, &FileObjAttributes);
//
// Initialize the attributes to specify the size of PDO device extension.
// All the state information private to the PDO will be tracked here.
//
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&pdoAttributes, RPDO_DEVICE_DATA);
pdoAttributes.EvtCleanupCallback = rawEvtCleanupCallback;
//
// Set up our queue to allow forwarding of requests to the parent
// This is done so that the cached data can be retrieved
//
//WdfPdoInitAllowForwardingRequestToParent(pDeviceInit);
// TODO: Replace the above because it is needed for WdfRequestForwardToParentDeviceIoQueue()
status = WdfDeviceCreate(&pDeviceInit, &pdoAttributes, &hChild);
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfDeviceCreate", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
//
// Get the device context.
//
pdoData = PdoGetData(hChild);
pdoData->InstanceNo = InstanceNo;
pdoData->hParentDevice = Device;
//
// Save the I/O target handle and adjust the I/O stack size:
//
devExt = GetDeviceContext(Device);
pdoData->IoTargetToParent = devExt->IoTargetToSelf;
ChildDeviceObject = WdfDeviceWdmGetDeviceObject(hChild);
ParentDeviceObject = WdfDeviceWdmGetDeviceObject(Device);
ChildDeviceObject->StackSize = ParentDeviceObject->StackSize+1;
// Create a wait-lock object that will be used to synch access to positions[i]
// The lock is created when the raw device is created so the raw device is set to be its parent
WDF_OBJECT_ATTRIBUTES_INIT(&LockAttributes);
LockAttributes.ParentObject = hChild;
status = WdfWaitLockCreate(&LockAttributes, &(devExt->positionLock));
if (!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "WdfWaitLockCreate failed 0x%x\n", status);
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfWaitLockCreate", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
//
// Configure the default queue associated with the control device object
// to be Serial so that request passed to EvtIoDeviceControl are serialized.
// A default queue gets all the requests that are not
// configure-fowarded using WdfDeviceConfigureRequestDispatching.
//
WDF_IO_QUEUE_CONFIG_INIT_DEFAULT_QUEUE(&ioQueueConfig,
WdfIoQueueDispatchSequential);
ioQueueConfig.EvtIoDeviceControl = vJoy_EvtIoDeviceControlForRawPdo;
status = WdfIoQueueCreate(hChild,
&ioQueueConfig,
WDF_NO_OBJECT_ATTRIBUTES,
&queue // pointer to default queue
);
if (!NT_SUCCESS(status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "WdfIoQueueCreate failed 0x%x\n", status);
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfIoQueueCreate", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
//
// Set some properties for the child device.
//
WDF_DEVICE_PNP_CAPABILITIES_INIT(&pnpCaps);
pnpCaps.Removable = WdfTrue; // Remove Icon from " Devices and Printers"
pnpCaps.SurpriseRemovalOK = WdfTrue;
pnpCaps.NoDisplayInUI = WdfTrue;
// pnpCaps.Address = InstanceNo;
pnpCaps.UINumber = 0;
WdfDeviceSetPnpCapabilities(hChild, &pnpCaps);
//
// TODO: In addition to setting NoDisplayInUI in DeviceCaps, we
// have to do the following to hide the device. Following call
// tells the framework to report the device state in
// IRP_MN_QUERY_DEVICE_STATE request.
//
WDF_DEVICE_STATE_INIT(&deviceState);
deviceState.DontDisplayInUI = WdfTrue; // Remove Icon from Device manager
WdfDeviceSetDeviceState(hChild, &deviceState);
//
// Create 16 interfaces
//
for (iInterface=1 ; iInterface <= MAX_N_DEVICES; iInterface++)
{
RtlStringCchPrintfW((NTSTRSAFE_PWSTR)RefStr, 20, VJOY_INTERFACE L"%03d", iInterface);
RtlInitUnicodeString(&RefStr2, (PCWSTR)RefStr);
status = WdfDeviceCreateDeviceInterface(hChild,&GUID_DEVINTERFACE_VJOY,&RefStr2);
if (!NT_SUCCESS (status)) {
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "WdfDeviceCreateDeviceInterface number %d failed 0x%x\n", iInterface, status);
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfDeviceCreateDeviceInterface", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
};
// Mark all interfaces as unused
pdoData->UsedInterfacesMask=0;
//
// Add this device to the FDO's collection of children.
// After the child device is added to the static collection successfully,
// driver must call WdfPdoMarkMissing to get the device deleted. It
// shouldn't delete the child device directly by calling WdfObjectDelete.
//
status = WdfFdoAddStaticChild(Device, hChild);
if (!NT_SUCCESS(status)) {
LogEventWithStatus(ERRLOG_RAW_DEV_FAILED ,L"WdfFdoAddStaticChild", WdfDriverWdmGetDriverObject(WdfGetDriver()), status);
goto Cleanup;
}
return STATUS_SUCCESS;
Cleanup:
TraceEvents(TRACE_LEVEL_ERROR, DBG_INIT, "KbFiltr_CreatePdo failed %x\n", status);
//
// Call WdfDeviceInitFree if you encounter an error while initializing
// a new framework device object. If you call WdfDeviceInitFree,
// do not call WdfDeviceCreate.
//
if (pDeviceInit != NULL) {
WdfDeviceInitFree(pDeviceInit);
}
if(hChild) {
WdfObjectDelete(hChild);
}
return status;
}
VOID
KbFilter_EvtIoInternalDeviceControl(
IN WDFQUEUE Queue,
IN WDFREQUEST Request,
IN size_t OutputBufferLength,
IN size_t InputBufferLength,
IN ULONG IoControlCode
)
/*++
Routine Description:
This routine is the dispatch routine for internal device control requests.
There are two specific control codes that are of interest:
IOCTL_INTERNAL_KEYBOARD_CONNECT:
Store the old context and function pointer and replace it with our own.
This makes life much simpler than intercepting IRPs sent by the RIT and
modifying them on the way back up.
IOCTL_INTERNAL_I8042_HOOK_KEYBOARD:
Add in the necessary function pointers and context values so that we can
alter how the ps/2 keyboard is initialized.
NOTE: Handling IOCTL_INTERNAL_I8042_HOOK_KEYBOARD is *NOT* necessary if
all you want to do is filter KEYBOARD_INPUT_DATAs. You can remove
the handling code and all related device extension fields and
functions to conserve space.
Arguments:
Queue - Handle to the framework queue object that is associated
with the I/O request.
Request - Handle to a framework request object.
OutputBufferLength - length of the request's output buffer,
if an output buffer is available.
InputBufferLength - length of the request's input buffer,
if an input buffer is available.
IoControlCode - the driver-defined or system-defined I/O control code
(IOCTL) that is associated with the request.
Return Value:
VOID
--*/
{
PDEVICE_EXTENSION devExt;
PINTERNAL_I8042_HOOK_KEYBOARD hookKeyboard = NULL;
PCONNECT_DATA connectData = NULL;
NTSTATUS status = STATUS_SUCCESS;
size_t length;
WDFDEVICE hDevice;
BOOLEAN forwardWithCompletionRoutine = FALSE;
BOOLEAN ret = TRUE;
WDFCONTEXT completionContext = WDF_NO_CONTEXT;
WDF_REQUEST_SEND_OPTIONS options;
WDFMEMORY outputMemory;
UNREFERENCED_PARAMETER(OutputBufferLength);
UNREFERENCED_PARAMETER(InputBufferLength);
PAGED_CODE();
DebugPrint(("Entered KbFilter_EvtIoInternalDeviceControl\n"));
hDevice = WdfIoQueueGetDevice(Queue);
devExt = FilterGetData(hDevice);
switch (IoControlCode) {
//
// Connect a keyboard class device driver to the port driver.
//
case IOCTL_INTERNAL_KEYBOARD_CONNECT:
//
// Only allow one connection.
//
if (devExt->UpperConnectData.ClassService != NULL) {
status = STATUS_SHARING_VIOLATION;
break;
}
//
// Get the input buffer from the request
// (Parameters.DeviceIoControl.Type3InputBuffer).
//
status = WdfRequestRetrieveInputBuffer(Request,
sizeof(CONNECT_DATA),
&connectData,
&length);
if(!NT_SUCCESS(status)){
DebugPrint(("WdfRequestRetrieveInputBuffer failed %x\n", status));
break;
}
NT_ASSERT(length == InputBufferLength);
devExt->UpperConnectData = *connectData;
//
// Hook into the report chain. Everytime a keyboard packet is reported
// to the system, KbFilter_ServiceCallback will be called
//
connectData->ClassDeviceObject = WdfDeviceWdmGetDeviceObject(hDevice);
#pragma warning(disable:4152) //nonstandard extension, function/data pointer conversion
connectData->ClassService = KbFilter_ServiceCallback;
#pragma warning(default:4152)
break;
//
// Disconnect a keyboard class device driver from the port driver.
//
case IOCTL_INTERNAL_KEYBOARD_DISCONNECT:
//
// Clear the connection parameters in the device extension.
//
// devExt->UpperConnectData.ClassDeviceObject = NULL;
// devExt->UpperConnectData.ClassService = NULL;
status = STATUS_NOT_IMPLEMENTED;
break;
//
// Attach this driver to the initialization and byte processing of the
// i8042 (ie PS/2) keyboard. This is only necessary if you want to do PS/2
// specific functions, otherwise hooking the CONNECT_DATA is sufficient
//
case IOCTL_INTERNAL_I8042_HOOK_KEYBOARD:
DebugPrint(("hook keyboard received!\n"));
//
// Get the input buffer from the request
// (Parameters.DeviceIoControl.Type3InputBuffer)
//
status = WdfRequestRetrieveInputBuffer(Request,
sizeof(INTERNAL_I8042_HOOK_KEYBOARD),
&hookKeyboard,
&length);
if(!NT_SUCCESS(status)){
DebugPrint(("WdfRequestRetrieveInputBuffer failed %x\n", status));
break;
}
NT_ASSERT(length == InputBufferLength);
//
// Enter our own initialization routine and record any Init routine
// that may be above us. Repeat for the isr hook
//
devExt->UpperContext = hookKeyboard->Context;
//
// replace old Context with our own
//
hookKeyboard->Context = (PVOID) devExt;
if (hookKeyboard->InitializationRoutine) {
devExt->UpperInitializationRoutine =
hookKeyboard->InitializationRoutine;
}
hookKeyboard->InitializationRoutine =
(PI8042_KEYBOARD_INITIALIZATION_ROUTINE)
KbFilter_InitializationRoutine;
if (hookKeyboard->IsrRoutine) {
devExt->UpperIsrHook = hookKeyboard->IsrRoutine;
}
hookKeyboard->IsrRoutine = (PI8042_KEYBOARD_ISR) KbFilter_IsrHook;
//
// Store all of the other important stuff
//
devExt->IsrWritePort = hookKeyboard->IsrWritePort;
devExt->QueueKeyboardPacket = hookKeyboard->QueueKeyboardPacket;
devExt->CallContext = hookKeyboard->CallContext;
status = STATUS_SUCCESS;
break;
case IOCTL_KEYBOARD_QUERY_ATTRIBUTES:
forwardWithCompletionRoutine = TRUE;
completionContext = devExt;
break;
//
// Might want to capture these in the future. For now, then pass them down
// the stack. These queries must be successful for the RIT to communicate
// with the keyboard.
//
case IOCTL_KEYBOARD_QUERY_INDICATOR_TRANSLATION:
case IOCTL_KEYBOARD_QUERY_INDICATORS:
case IOCTL_KEYBOARD_SET_INDICATORS:
case IOCTL_KEYBOARD_QUERY_TYPEMATIC:
case IOCTL_KEYBOARD_SET_TYPEMATIC:
break;
}
if (!NT_SUCCESS(status)) {
WdfRequestComplete(Request, status);
return;
}
//
// Forward the request down. WdfDeviceGetIoTarget returns
// the default target, which represents the device attached to us below in
// the stack.
//
if (forwardWithCompletionRoutine) {
//
// Format the request with the output memory so the completion routine
// can access the return data in order to cache it into the context area
//
status = WdfRequestRetrieveOutputMemory(Request, &outputMemory);
if (!NT_SUCCESS(status)) {
DebugPrint(("WdfRequestRetrieveOutputMemory failed: 0x%x\n", status));
WdfRequestComplete(Request, status);
return;
}
status = WdfIoTargetFormatRequestForInternalIoctl(WdfDeviceGetIoTarget(hDevice),
Request,
IoControlCode,
NULL,
NULL,
outputMemory,
NULL);
if (!NT_SUCCESS(status)) {
DebugPrint(("WdfIoTargetFormatRequestForInternalIoctl failed: 0x%x\n", status));
WdfRequestComplete(Request, status);
return;
}
//
// Set our completion routine with a context area that we will save
// the output data into
//
WdfRequestSetCompletionRoutine(Request,
KbFilterRequestCompletionRoutine,
completionContext);
ret = WdfRequestSend(Request,
WdfDeviceGetIoTarget(hDevice),
WDF_NO_SEND_OPTIONS);
if (ret == FALSE) {
status = WdfRequestGetStatus (Request);
DebugPrint( ("WdfRequestSend failed: 0x%x\n", status));
WdfRequestComplete(Request, status);
}
}
else
{
//
// We are not interested in post processing the IRP so
// fire and forget.
//
WDF_REQUEST_SEND_OPTIONS_INIT(&options,
WDF_REQUEST_SEND_OPTION_SEND_AND_FORGET);
ret = WdfRequestSend(Request, WdfDeviceGetIoTarget(hDevice), &options);
if (ret == FALSE) {
status = WdfRequestGetStatus (Request);
DebugPrint(("WdfRequestSend failed: 0x%x\n", status));
WdfRequestComplete(Request, status);
}
}
return;
}
VOID
MouFilter_EvtIoInternalDeviceControl(
IN WDFQUEUE Queue,
IN WDFREQUEST Request,
IN size_t OutputBufferLength,
IN size_t InputBufferLength,
IN ULONG IoControlCode
)
/*++
Routine Description:
This routine is the dispatch routine for internal device control requests.
There are two specific control codes that are of interest:
IOCTL_INTERNAL_MOUSE_CONNECT:
Store the old context and function pointer and replace it with our own.
This makes life much simpler than intercepting IRPs sent by the RIT and
modifying them on the way back up.
IOCTL_INTERNAL_I8042_HOOK_MOUSE:
Add in the necessary function pointers and context values so that we can
alter how the ps/2 mouse is initialized.
NOTE: Handling IOCTL_INTERNAL_I8042_HOOK_MOUSE is *NOT* necessary if
all you want to do is filter MOUSE_INPUT_DATAs. You can remove
the handling code and all related device extension fields and
functions to conserve space.
--*/
{
PDEVICE_EXTENSION devExt;
PCONNECT_DATA connectData;
PINTERNAL_I8042_HOOK_MOUSE hookMouse;
NTSTATUS status = STATUS_SUCCESS;
WDFDEVICE hDevice;
size_t length;
UNREFERENCED_PARAMETER(OutputBufferLength);
UNREFERENCED_PARAMETER(InputBufferLength);
PAGED_CODE();
hDevice = WdfIoQueueGetDevice(Queue);
devExt = FilterGetData(hDevice);
switch (IoControlCode) {
//
// Connect a mouse class device driver to the port driver.
//
case IOCTL_INTERNAL_MOUSE_CONNECT:
//
// Only allow one connection.
//
if (devExt->UpperConnectData.ClassService != NULL) {
status = STATUS_SHARING_VIOLATION;
break;
}
//
// Copy the connection parameters to the device extension.
//
status = WdfRequestRetrieveInputBuffer(Request,
sizeof(CONNECT_DATA),
&connectData,
&length);
if(!NT_SUCCESS(status)) {
DebugPrint(("WdfRequestRetrieveInputBuffer failed %x\n", status));
break;
}
devExt->UpperConnectData = *connectData;
//
// Hook into the report chain. Everytime a mouse packet is reported to
// the system, MouFilter_ServiceCallback will be called
//
connectData->ClassDeviceObject = WdfDeviceWdmGetDeviceObject(hDevice);
connectData->ClassService = MouFilter_ServiceCallback;
break;
//
// Disconnect a mouse class device driver from the port driver.
//
case IOCTL_INTERNAL_MOUSE_DISCONNECT:
//
// Clear the connection parameters in the device extension.
//
// devExt->UpperConnectData.ClassDeviceObject = NULL;
// devExt->UpperConnectData.ClassService = NULL;
status = STATUS_NOT_IMPLEMENTED;
break;
//
// Attach this driver to the initialization and byte processing of the
// i8042 (ie PS/2) mouse. This is only necessary if you want to do PS/2
// specific functions, otherwise hooking the CONNECT_DATA is sufficient
//
case IOCTL_INTERNAL_I8042_HOOK_MOUSE:
DebugPrint(("hook mouse received!\n"));
// Get the input buffer from the request
// (Parameters.DeviceIoControl.Type3InputBuffer)
//
status = WdfRequestRetrieveInputBuffer(Request,
sizeof(INTERNAL_I8042_HOOK_MOUSE),
&hookMouse,
&length);
if(!NT_SUCCESS(status)) {
DebugPrint(("WdfRequestRetrieveInputBuffer failed %x\n", status));
break;
}
//
// Set isr routine and context and record any values from above this driver
//
devExt->UpperContext = hookMouse->Context;
hookMouse->Context = (PVOID) devExt;
if (hookMouse->IsrRoutine) {
devExt->UpperIsrHook = hookMouse->IsrRoutine;
}
hookMouse->IsrRoutine = (PI8042_MOUSE_ISR) MouFilter_IsrHook;
//
// Store all of the other functions we might need in the future
//
devExt->IsrWritePort = hookMouse->IsrWritePort;
devExt->CallContext = hookMouse->CallContext;
devExt->QueueMousePacket = hookMouse->QueueMousePacket;
status = STATUS_SUCCESS;
break;
//
// Might want to capture this in the future. For now, then pass it down
// the stack. These queries must be successful for the RIT to communicate
// with the mouse.
//
case IOCTL_MOUSE_QUERY_ATTRIBUTES:
default:
break;
}
if (!NT_SUCCESS(status)) {
WdfRequestComplete(Request, status);
return ;
}
MouFilter_DispatchPassThrough(Request,WdfDeviceGetIoTarget(hDevice));
}
NTSTATUS
DriverEntry(
DRIVER_OBJECT* driverObject,
UNICODE_STRING* registryPath
)
{
NTSTATUS status;
WDFDEVICE device;
WDFDRIVER driver;
WDFKEY configKey;
NET_BUFFER_LIST_POOL_PARAMETERS nblPoolParams = {0};
// Request NX Non-Paged Pool when available
ExInitializeDriverRuntime(DrvRtPoolNxOptIn);
status = StreamEditInitDriverObjects(
driverObject,
registryPath,
&driver,
&device
);
if (!NT_SUCCESS(status))
{
goto Exit;
}
status = WdfDriverOpenParametersRegistryKey(
driver,
KEY_READ,
WDF_NO_OBJECT_ATTRIBUTES,
&configKey
);
if (!NT_SUCCESS(status))
{
goto Exit;
}
status = StreamEditLoadConfig(configKey);
if (!NT_SUCCESS(status))
{
goto Exit;
}
gStringToReplaceMdl = IoAllocateMdl(
configStringToReplace,
(ULONG) strlen(configStringToReplace),
FALSE,
FALSE,
NULL
);
if (gStringToReplaceMdl == NULL)
{
status = STATUS_NO_MEMORY;
goto Exit;
}
MmBuildMdlForNonPagedPool(gStringToReplaceMdl);
gNdisGenericObj = NdisAllocateGenericObject(
driverObject,
STREAM_EDITOR_NDIS_OBJ_TAG,
0
);
if (gNdisGenericObj == NULL)
{
status = STATUS_NO_MEMORY;
goto Exit;
}
nblPoolParams.Header.Type = NDIS_OBJECT_TYPE_DEFAULT;
nblPoolParams.Header.Revision = NET_BUFFER_LIST_POOL_PARAMETERS_REVISION_1;
nblPoolParams.Header.Size = sizeof(nblPoolParams);
nblPoolParams.fAllocateNetBuffer = TRUE;
nblPoolParams.DataSize = 0;
nblPoolParams.PoolTag = STREAM_EDITOR_NBL_POOL_TAG;
gNetBufferListPool = NdisAllocateNetBufferListPool(
gNdisGenericObj,
&nblPoolParams
);
if (gNetBufferListPool == NULL)
{
status = STATUS_NO_MEMORY;
goto Exit;
}
status = FwpsInjectionHandleCreate(
AF_UNSPEC,
FWPS_INJECTION_TYPE_STREAM,
&gInjectionHandle
);
if (!NT_SUCCESS(status))
{
goto Exit;
}
gWdmDevice = WdfDeviceWdmGetDeviceObject(device);
status = StreamEditRegisterCallout(
&gStreamEditor,
gWdmDevice
);
if (!NT_SUCCESS(status))
{
goto Exit;
}
if (configEditInline)
{
InlineEditInit(&gStreamEditor);
}
else
{
status = OobEditInit(&gStreamEditor);
if (!NT_SUCCESS(status))
{
goto Exit;
}
}
Exit:
if (!NT_SUCCESS(status))
{
if (gEngineHandle != NULL)
{
StreamEditUnregisterCallout();
}
if (gInjectionHandle != NULL)
{
FwpsInjectionHandleDestroy(gInjectionHandle);
}
if (gNetBufferListPool != NULL)
{
NdisFreeNetBufferListPool(gNetBufferListPool);
}
if (gNdisGenericObj != NULL)
{
NdisFreeGenericObject(gNdisGenericObj);
}
if (gStringToReplaceMdl != NULL)
{
IoFreeMdl(gStringToReplaceMdl);
}
}
return status;
}