4a0354fdcd
This commit fixes issues with accessing USB devices on some USB host controllers. Before this fix UsbDk assumed IO type NEITHER for ReadFile/WriteFile operations performed on captured USB device. This assumption is not true in some cases because UsbDk creates filter devices which use the same IO type as device being filtered, i.e. IO type is effectively defined by USB host controller driver. While some host controllers work in NEITHER IO mode, others use DIRECT IO instead. When capturing device plugged into such a controller UsbDk failed to retrieve ReadFile/WriteFile buffers because there are different API used different IO types and UsbDk used the wrond one. This patch changes UsbDk DLL/Driver interface to use IOCTL for ReadPipe/WritePipe operations. Since IO type for IOCTL requests is determined by IOCTL code and not by target device settings UsbDk need not consider IO type used by the host controller being filtered. Signed-off-by: Dmitry Fleytman <dfleytma@redhat.com>
71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
/**********************************************************************
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* Copyright (c) 2013-2014 Red Hat, Inc.
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*
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* Developed by Daynix Computing LTD.
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*
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* Authors:
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* Dmitry Fleytman <dmitry@daynix.com>
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* Pavel Gurvich <pavel@daynix.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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**********************************************************************/
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#pragma once
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#include "UsbDkData.h"
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#include "DriverFile.h"
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#include "UsbDkNames.h"
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#define REDIRECTOR_ACCESS_EXCEPTION_STRING TEXT("Redirection operation error. ")
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class UsbDkRedirectorAccessException : public UsbDkW32ErrorException
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{
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public:
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UsbDkRedirectorAccessException() : UsbDkW32ErrorException(REDIRECTOR_ACCESS_EXCEPTION_STRING){}
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UsbDkRedirectorAccessException(LPCTSTR lpzMessage) : UsbDkW32ErrorException(tstring(REDIRECTOR_ACCESS_EXCEPTION_STRING) + lpzMessage){}
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UsbDkRedirectorAccessException(LPCTSTR lpzMessage, DWORD dwErrorCode) : UsbDkW32ErrorException(tstring(REDIRECTOR_ACCESS_EXCEPTION_STRING) + lpzMessage, dwErrorCode){}
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UsbDkRedirectorAccessException(tstring errMsg) : UsbDkW32ErrorException(tstring(REDIRECTOR_ACCESS_EXCEPTION_STRING) + errMsg){}
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UsbDkRedirectorAccessException(tstring errMsg, DWORD dwErrorCode) : UsbDkW32ErrorException(tstring(REDIRECTOR_ACCESS_EXCEPTION_STRING) + errMsg, dwErrorCode){}
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};
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class UsbDkRedirectorAccess : public UsbDkDriverFile
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{
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public:
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UsbDkRedirectorAccess(HANDLE ObjectHandle)
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:UsbDkDriverFile(ObjectHandle, true)
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{}
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TransferResult ReadPipe(USB_DK_TRANSFER_REQUEST &Request, LPOVERLAPPED Overlapped);
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TransferResult WritePipe(USB_DK_TRANSFER_REQUEST &Request, LPOVERLAPPED Overlapped);
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void AbortPipe(ULONG64 PipeAddress);
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void ResetPipe(ULONG64 PipeAddress);
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void SetAltsetting(ULONG64 InterfaceIdx, ULONG64 AltSettingIdx);
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void ResetDevice();
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HANDLE GetSystemHandle() const
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{ return m_hDriver; }
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private:
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TransferResult TransactPipe(USB_DK_TRANSFER_REQUEST &Request,
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DWORD OpCode,
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LPOVERLAPPED Overlapped);
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bool IoctlSync(DWORD Code,
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bool ShortBufferOk = false,
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LPVOID InBuffer = nullptr,
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DWORD InBufferSize = 0,
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LPVOID OutBuffer = nullptr,
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DWORD OutBufferSize = 0,
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LPDWORD BytesReturned = nullptr);
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};
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