143 lines
3.4 KiB
C++
143 lines
3.4 KiB
C++
//
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// DataChannel.cpp : Implementation of CDataChannel
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//
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#include "PreComp.h"
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#include "DataChannel.h"
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#include "AlgController.h"
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/////////////////////////////////////////////////////////////////////////////
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// CDataChannel
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STDMETHODIMP CDataChannel::Cancel()
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{
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MYTRACE_ENTER_NOSHOWEXIT("CDataChannel::Cancel()");
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//
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// Normal redirect cancel using original argument pass to CreateRedirect
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//
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HRESULT hr = g_pAlgController->GetNat()->CancelRedirect(
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(UCHAR)m_Properties.eProtocol,
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m_ulDestinationAddress,
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m_usDestinationPort,
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m_ulSourceAddress,
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m_usSourcePort,
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m_ulNewDestinationAddress,
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m_usNewDestinationPort,
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m_ulNewSourceAddress,
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m_usNewSourcePort
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);
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return hr;
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}
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STDMETHODIMP CDataChannel::GetChannelProperties(ALG_DATA_CHANNEL_PROPERTIES** ppProperties)
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{
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HRESULT hr = S_OK;
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if (NULL != ppProperties)
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{
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*ppProperties = reinterpret_cast<ALG_DATA_CHANNEL_PROPERTIES*>(
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CoTaskMemAlloc(sizeof(ALG_DATA_CHANNEL_PROPERTIES))
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);
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if (NULL != *ppProperties)
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{
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CopyMemory(*ppProperties, &m_Properties, sizeof(ALG_DATA_CHANNEL_PROPERTIES));
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}
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else
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{
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hr = E_OUTOFMEMORY;
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}
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}
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else
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{
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hr = E_POINTER;
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}
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return hr;
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}
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//
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// Retrieve the requested event handle.
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// The caller must call CloseHandle on this handle.
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// This routine will fail if session creation notification was not requested.
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//
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// Notification will be triggered when the Channel is open (TCP)
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// or when the first UDP packet are received
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//
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STDMETHODIMP CDataChannel::GetSessionCreationEventHandle(HANDLE* pHandle)
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{
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MYTRACE_ENTER("CDataChannel::GetSessionCreationEventHandle");
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if ( pHandle == NULL )
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return E_INVALIDARG;
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if ( !m_hCreateEvent )
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return E_FAIL;
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if ( DuplicateHandle(
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GetCurrentProcess(),
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m_hCreateEvent,
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GetCurrentProcess(),
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pHandle,
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0,
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FALSE,
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DUPLICATE_SAME_ACCESS
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)
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)
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{
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MYTRACE("Duplicated handle from %d to new %d", m_hCreateEvent, *pHandle);
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}
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else
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{
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MYTRACE_ERROR("Duplicating handle", 0);
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return E_FAIL;
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}
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return S_OK;
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}
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//
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// Retrieve the requested event handle.
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// The caller must call CloseHandle on this handle.
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// This routine will fail if session deletion notification was not requested.
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//
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// Notification will be triggered when the Channel is close
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// or when UDP packet are now reveice for a period of time.
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//
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STDMETHODIMP CDataChannel::GetSessionDeletionEventHandle(HANDLE* pHandle)
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{
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MYTRACE_ENTER("CDataChannel::GetSessionDeletionEventHandle");
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if ( pHandle == NULL )
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return E_INVALIDARG;
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if ( !m_hDeleteEvent )
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return E_FAIL;
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if ( DuplicateHandle(
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GetCurrentProcess(),
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m_hDeleteEvent,
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GetCurrentProcess(),
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pHandle,
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0,
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FALSE,
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DUPLICATE_SAME_ACCESS
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)
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)
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{
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MYTRACE("Duplicated handle from %d to new %d", m_hDeleteEvent, *pHandle);
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}
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else
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{
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MYTRACE_ERROR("Duplicating handle", 0);
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return E_FAIL;
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}
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return S_OK;
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}
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