mirror of
https://github.com/nefarius/ViGEmBus.git
synced 2025-08-10 00:52:17 +00:00
Implemented new plugin request tracking
This commit is contained in:
Benjamin Höglinger-Stelzer
525
sys/busenum.cpp
525
sys/busenum.cpp
@@ -46,324 +46,331 @@ using ViGEm::Bus::Targets::EmulationTargetDS4;
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// Simulates a device plug-in event.
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//
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EXTERN_C NTSTATUS Bus_PlugInDevice(
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_In_ WDFDEVICE Device,
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_In_ WDFREQUEST Request,
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_In_ BOOLEAN IsInternal,
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_Out_ size_t* Transferred)
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_In_ WDFDEVICE Device,
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_In_ WDFREQUEST Request,
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_In_ BOOLEAN IsInternal,
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_Out_ size_t* Transferred)
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{
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PDO_IDENTIFICATION_DESCRIPTION description;
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NTSTATUS status;
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PVIGEM_PLUGIN_TARGET plugIn;
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WDFFILEOBJECT fileObject;
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PFDO_FILE_DATA pFileData;
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size_t length = 0;
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NTSTATUS status;
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PVIGEM_PLUGIN_TARGET plugIn;
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WDFFILEOBJECT fileObject;
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PFDO_FILE_DATA pFileData;
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size_t length = 0;
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UNREFERENCED_PARAMETER(IsInternal);
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PAGED_CODE();
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UNREFERENCED_PARAMETER(IsInternal);
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PAGED_CODE();
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TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_BUSENUM, "%!FUNC! Entry");
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TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_BUSENUM, "%!FUNC! Entry");
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status = WdfRequestRetrieveInputBuffer(
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Request,
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sizeof(VIGEM_PLUGIN_TARGET),
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reinterpret_cast<PVOID*>(&plugIn),
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&length
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);
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if (!NT_SUCCESS(status))
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"WdfRequestRetrieveInputBuffer failed with status %!STATUS!", status);
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return status;
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}
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status = WdfRequestRetrieveInputBuffer(
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Request,
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sizeof(VIGEM_PLUGIN_TARGET),
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reinterpret_cast<PVOID*>(&plugIn),
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&length
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);
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if (!NT_SUCCESS(status))
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"WdfRequestRetrieveInputBuffer failed with status %!STATUS!", status);
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return status;
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}
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if ((sizeof(VIGEM_PLUGIN_TARGET) != plugIn->Size) || (length != plugIn->Size))
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"sizeof(VIGEM_PLUGIN_TARGET) buffer size mismatch [%d != %d]",
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sizeof(VIGEM_PLUGIN_TARGET), plugIn->Size);
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return STATUS_INVALID_PARAMETER;
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}
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if ((sizeof(VIGEM_PLUGIN_TARGET) != plugIn->Size) || (length != plugIn->Size))
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"sizeof(VIGEM_PLUGIN_TARGET) buffer size mismatch [%d != %d]",
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sizeof(VIGEM_PLUGIN_TARGET), plugIn->Size);
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return STATUS_INVALID_PARAMETER;
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}
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if (plugIn->SerialNo == 0)
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"Serial no. 0 not allowed");
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return STATUS_INVALID_PARAMETER;
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}
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if (plugIn->SerialNo == 0)
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"Serial no. 0 not allowed");
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return STATUS_INVALID_PARAMETER;
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}
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*Transferred = length;
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*Transferred = length;
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fileObject = WdfRequestGetFileObject(Request);
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if (fileObject == NULL)
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"WdfRequestGetFileObject failed to fetch WDFFILEOBJECT from request 0x%p",
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Request);
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return STATUS_INVALID_PARAMETER;
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}
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fileObject = WdfRequestGetFileObject(Request);
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if (fileObject == NULL)
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"WdfRequestGetFileObject failed to fetch WDFFILEOBJECT from request 0x%p",
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Request);
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return STATUS_INVALID_PARAMETER;
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}
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pFileData = FileObjectGetData(fileObject);
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if (pFileData == NULL)
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"FileObjectGetData failed to get context data for 0x%p",
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fileObject);
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return STATUS_INVALID_PARAMETER;
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}
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pFileData = FileObjectGetData(fileObject);
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if (pFileData == NULL)
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"FileObjectGetData failed to get context data for 0x%p",
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fileObject);
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return STATUS_INVALID_PARAMETER;
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}
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//
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// Initialize the description with the information about the newly
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// plugged in device.
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//
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WDF_CHILD_IDENTIFICATION_DESCRIPTION_HEADER_INIT(&description.Header, sizeof(description));
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//
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// Initialize the description with the information about the newly
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// plugged in device.
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//
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WDF_CHILD_IDENTIFICATION_DESCRIPTION_HEADER_INIT(&description.Header, sizeof(description));
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description.SerialNo = plugIn->SerialNo;
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description.SessionId = pFileData->SessionId;
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// Set default IDs if supplied values are invalid
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if (plugIn->VendorId == 0 || plugIn->ProductId == 0)
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{
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switch (plugIn->TargetType)
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{
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case Xbox360Wired:
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description.SerialNo = plugIn->SerialNo;
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description.SessionId = pFileData->SessionId;
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description.Target = new EmulationTargetXUSB(plugIn->SerialNo, pFileData->SessionId);
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// Set default IDs if supplied values are invalid
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if (plugIn->VendorId == 0 || plugIn->ProductId == 0)
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{
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switch (plugIn->TargetType)
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{
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case Xbox360Wired:
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break;
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case DualShock4Wired:
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description.Target = new EmulationTargetXUSB(plugIn->SerialNo, pFileData->SessionId);
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description.Target = new EmulationTargetDS4(plugIn->SerialNo, pFileData->SessionId);
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break;
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case DualShock4Wired:
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break;
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default:
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return STATUS_NOT_SUPPORTED;
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}
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}
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else
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{
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switch (plugIn->TargetType)
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{
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case Xbox360Wired:
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description.Target = new EmulationTargetDS4(plugIn->SerialNo, pFileData->SessionId);
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description.Target = new EmulationTargetXUSB(
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plugIn->SerialNo,
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pFileData->SessionId,
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plugIn->VendorId,
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plugIn->ProductId
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);
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break;
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default:
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return STATUS_NOT_SUPPORTED;
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}
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}
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else
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{
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switch (plugIn->TargetType)
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{
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case Xbox360Wired:
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break;
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case DualShock4Wired:
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description.Target = new EmulationTargetXUSB(
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plugIn->SerialNo,
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pFileData->SessionId,
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plugIn->VendorId,
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plugIn->ProductId
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);
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description.Target = new EmulationTargetDS4(
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plugIn->SerialNo,
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pFileData->SessionId,
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plugIn->VendorId,
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plugIn->ProductId
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);
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break;
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case DualShock4Wired:
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break;
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default:
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return STATUS_NOT_SUPPORTED;
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}
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}
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description.Target = new EmulationTargetDS4(
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plugIn->SerialNo,
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pFileData->SessionId,
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plugIn->VendorId,
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plugIn->ProductId
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);
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status = WdfChildListAddOrUpdateChildDescriptionAsPresent(
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WdfFdoGetDefaultChildList(Device),
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&description.Header,
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NULL
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);
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break;
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default:
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return STATUS_NOT_SUPPORTED;
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}
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}
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if (!NT_SUCCESS(status))
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"WdfChildListAddOrUpdateChildDescriptionAsPresent failed with status %!STATUS!",
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status);
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if (!NT_SUCCESS(description.Target->PdoPrepare(Device)))
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{
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goto pluginEnd;
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}
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goto pluginEnd;
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}
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status = WdfChildListAddOrUpdateChildDescriptionAsPresent(
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WdfFdoGetDefaultChildList(Device),
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&description.Header,
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NULL
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);
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//
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// The requested serial number is already in use
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//
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if (status == STATUS_OBJECT_NAME_EXISTS)
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{
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status = STATUS_INVALID_PARAMETER;
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if (!NT_SUCCESS(status))
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"WdfChildListAddOrUpdateChildDescriptionAsPresent failed with status %!STATUS!",
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status);
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"The described PDO already exists (%!STATUS!)",
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status);
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goto pluginEnd;
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}
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goto pluginEnd;
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}
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//
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// The requested serial number is already in use
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//
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if (status == STATUS_OBJECT_NAME_EXISTS)
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{
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status = STATUS_INVALID_PARAMETER;
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//status = NT_SUCCESS(status) ? STATUS_PENDING : status;
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"The described PDO already exists (%!STATUS!)",
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status);
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goto pluginEnd;
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}
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status = description.Target->EnqueuePlugin(Request);
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status = NT_SUCCESS(status) ? STATUS_PENDING : status;
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pluginEnd:
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TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_BUSENUM, "%!FUNC! Exit with status %!STATUS!", status);
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TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_BUSENUM, "%!FUNC! Exit with status %!STATUS!", status);
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return status;
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return status;
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}
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//
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// Simulates a device unplug event.
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//
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EXTERN_C NTSTATUS Bus_UnPlugDevice(
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_In_ WDFDEVICE Device,
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_In_ WDFREQUEST Request,
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_In_ BOOLEAN IsInternal,
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_Out_ size_t* Transferred)
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_In_ WDFDEVICE Device,
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_In_ WDFREQUEST Request,
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_In_ BOOLEAN IsInternal,
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_Out_ size_t* Transferred)
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{
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NTSTATUS status;
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WDFDEVICE hChild;
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WDFCHILDLIST list;
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WDF_CHILD_LIST_ITERATOR iterator;
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WDF_CHILD_RETRIEVE_INFO childInfo;
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PDO_IDENTIFICATION_DESCRIPTION description;
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BOOLEAN unplugAll;
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PVIGEM_UNPLUG_TARGET unPlug;
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WDFFILEOBJECT fileObject;
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PFDO_FILE_DATA pFileData = NULL;
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size_t length = 0;
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PAGED_CODE();
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NTSTATUS status;
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WDFDEVICE hChild;
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WDFCHILDLIST list;
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WDF_CHILD_LIST_ITERATOR iterator;
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WDF_CHILD_RETRIEVE_INFO childInfo;
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PDO_IDENTIFICATION_DESCRIPTION description;
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BOOLEAN unplugAll;
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PVIGEM_UNPLUG_TARGET unPlug;
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WDFFILEOBJECT fileObject;
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PFDO_FILE_DATA pFileData = NULL;
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size_t length = 0;
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TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_BUSENUM, "%!FUNC! Entry");
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PAGED_CODE();
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status = WdfRequestRetrieveInputBuffer(
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Request,
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sizeof(VIGEM_UNPLUG_TARGET),
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(PVOID*)&unPlug,
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&length
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);
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TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_BUSENUM, "%!FUNC! Entry");
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if (!NT_SUCCESS(status))
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
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"WdfRequestRetrieveInputBuffer failed with status %!STATUS!",
|
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status);
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return status;
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}
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status = WdfRequestRetrieveInputBuffer(
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Request,
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sizeof(VIGEM_UNPLUG_TARGET),
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(PVOID*)&unPlug,
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&length
|
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);
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if ((sizeof(VIGEM_UNPLUG_TARGET) != unPlug->Size) || (length != unPlug->Size))
|
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{
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TraceEvents(TRACE_LEVEL_ERROR,
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TRACE_BUSENUM,
|
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"sizeof(VIGEM_UNPLUG_TARGET) buffer size mismatch [%d != %d]",
|
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sizeof(VIGEM_UNPLUG_TARGET), unPlug->Size);
|
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return STATUS_INVALID_PARAMETER;
|
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}
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if (!NT_SUCCESS(status))
|
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{
|
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TraceEvents(TRACE_LEVEL_ERROR,
|
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TRACE_BUSENUM,
|
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"WdfRequestRetrieveInputBuffer failed with status %!STATUS!",
|
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status);
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return status;
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}
|
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|
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*Transferred = length;
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unplugAll = (unPlug->SerialNo == 0);
|
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if ((sizeof(VIGEM_UNPLUG_TARGET) != unPlug->Size) || (length != unPlug->Size))
|
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{
|
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TraceEvents(TRACE_LEVEL_ERROR,
|
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TRACE_BUSENUM,
|
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"sizeof(VIGEM_UNPLUG_TARGET) buffer size mismatch [%d != %d]",
|
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sizeof(VIGEM_UNPLUG_TARGET), unPlug->Size);
|
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return STATUS_INVALID_PARAMETER;
|
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}
|
||||
|
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fileObject = WdfRequestGetFileObject(Request);
|
||||
if (fileObject == NULL)
|
||||
{
|
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TraceEvents(TRACE_LEVEL_ERROR,
|
||||
TRACE_BUSENUM,
|
||||
"WdfRequestGetFileObject failed to fetch WDFFILEOBJECT from request 0x%p",
|
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Request);
|
||||
return STATUS_INVALID_PARAMETER;
|
||||
}
|
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*Transferred = length;
|
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unplugAll = (unPlug->SerialNo == 0);
|
||||
|
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pFileData = FileObjectGetData(fileObject);
|
||||
if (pFileData == NULL)
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_ERROR,
|
||||
TRACE_BUSENUM,
|
||||
"FileObjectGetData failed to get context data for 0x%p",
|
||||
fileObject);
|
||||
return STATUS_INVALID_PARAMETER;
|
||||
}
|
||||
fileObject = WdfRequestGetFileObject(Request);
|
||||
if (fileObject == NULL)
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_ERROR,
|
||||
TRACE_BUSENUM,
|
||||
"WdfRequestGetFileObject failed to fetch WDFFILEOBJECT from request 0x%p",
|
||||
Request);
|
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return STATUS_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
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"Starting child list traversal");
|
||||
pFileData = FileObjectGetData(fileObject);
|
||||
if (pFileData == NULL)
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_ERROR,
|
||||
TRACE_BUSENUM,
|
||||
"FileObjectGetData failed to get context data for 0x%p",
|
||||
fileObject);
|
||||
return STATUS_INVALID_PARAMETER;
|
||||
}
|
||||
|
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list = WdfFdoGetDefaultChildList(Device);
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
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TRACE_BUSENUM,
|
||||
"Starting child list traversal");
|
||||
|
||||
WDF_CHILD_LIST_ITERATOR_INIT(&iterator, WdfRetrievePresentChildren);
|
||||
list = WdfFdoGetDefaultChildList(Device);
|
||||
|
||||
WdfChildListBeginIteration(list, &iterator);
|
||||
WDF_CHILD_LIST_ITERATOR_INIT(&iterator, WdfRetrievePresentChildren);
|
||||
|
||||
for (;;)
|
||||
{
|
||||
WDF_CHILD_RETRIEVE_INFO_INIT(&childInfo, &description.Header);
|
||||
WDF_CHILD_IDENTIFICATION_DESCRIPTION_HEADER_INIT(&description.Header, sizeof(description));
|
||||
WdfChildListBeginIteration(list, &iterator);
|
||||
|
||||
status = WdfChildListRetrieveNextDevice(list, &iterator, &hChild, &childInfo);
|
||||
for (;;)
|
||||
{
|
||||
WDF_CHILD_RETRIEVE_INFO_INIT(&childInfo, &description.Header);
|
||||
WDF_CHILD_IDENTIFICATION_DESCRIPTION_HEADER_INIT(&description.Header, sizeof(description));
|
||||
|
||||
// Error or no more children, end loop
|
||||
if (!NT_SUCCESS(status) || status == STATUS_NO_MORE_ENTRIES)
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"WdfChildListRetrieveNextDevice returned with status %!STATUS!",
|
||||
status);
|
||||
break;
|
||||
}
|
||||
status = WdfChildListRetrieveNextDevice(list, &iterator, &hChild, &childInfo);
|
||||
|
||||
// If unable to retrieve device
|
||||
if (childInfo.Status != WdfChildListRetrieveDeviceSuccess)
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"childInfo.Status = %d",
|
||||
childInfo.Status);
|
||||
continue;
|
||||
}
|
||||
// Error or no more children, end loop
|
||||
if (!NT_SUCCESS(status) || status == STATUS_NO_MORE_ENTRIES)
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"WdfChildListRetrieveNextDevice returned with status %!STATUS!",
|
||||
status);
|
||||
break;
|
||||
}
|
||||
|
||||
// Child isn't the one we looked for, skip
|
||||
if (!unplugAll && description.SerialNo != unPlug->SerialNo)
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"Seeking serial mismatch: %d != %d",
|
||||
description.SerialNo,
|
||||
unPlug->SerialNo);
|
||||
continue;
|
||||
}
|
||||
// If unable to retrieve device
|
||||
if (childInfo.Status != WdfChildListRetrieveDeviceSuccess)
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"childInfo.Status = %d",
|
||||
childInfo.Status);
|
||||
continue;
|
||||
}
|
||||
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"description.SessionId = %d, pFileData->SessionId = %d",
|
||||
description.SessionId,
|
||||
pFileData->SessionId);
|
||||
// Child isn't the one we looked for, skip
|
||||
if (!unplugAll && description.SerialNo != unPlug->SerialNo)
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"Seeking serial mismatch: %d != %d",
|
||||
description.SerialNo,
|
||||
unPlug->SerialNo);
|
||||
continue;
|
||||
}
|
||||
|
||||
// Only unplug owned children
|
||||
if (IsInternal || description.SessionId == pFileData->SessionId)
|
||||
{
|
||||
// Unplug child
|
||||
status = WdfChildListUpdateChildDescriptionAsMissing(list, &description.Header);
|
||||
if (!NT_SUCCESS(status))
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_ERROR,
|
||||
TRACE_BUSENUM,
|
||||
"WdfChildListUpdateChildDescriptionAsMissing failed with status %!STATUS!",
|
||||
status);
|
||||
}
|
||||
}
|
||||
}
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"description.SessionId = %d, pFileData->SessionId = %d",
|
||||
description.SessionId,
|
||||
pFileData->SessionId);
|
||||
|
||||
WdfChildListEndIteration(list, &iterator);
|
||||
// Only unplug owned children
|
||||
if (IsInternal || description.SessionId == pFileData->SessionId)
|
||||
{
|
||||
// Unplug child
|
||||
status = WdfChildListUpdateChildDescriptionAsMissing(list, &description.Header);
|
||||
if (!NT_SUCCESS(status))
|
||||
{
|
||||
TraceEvents(TRACE_LEVEL_ERROR,
|
||||
TRACE_BUSENUM,
|
||||
"WdfChildListUpdateChildDescriptionAsMissing failed with status %!STATUS!",
|
||||
status);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"Finished child list traversal");
|
||||
WdfChildListEndIteration(list, &iterator);
|
||||
|
||||
TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_BUSENUM, "%!FUNC! Exit with status %!STATUS!", STATUS_SUCCESS);
|
||||
TraceEvents(TRACE_LEVEL_VERBOSE,
|
||||
TRACE_BUSENUM,
|
||||
"Finished child list traversal");
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_BUSENUM, "%!FUNC! Exit with status %!STATUS!", STATUS_SUCCESS);
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user