rtp/rtpstack/src/rtpcommrecv.cpp
author Petteri Saari <petteri.saari@digia.com>
Thu, 02 Dec 2010 15:23:48 +0200
branchMSRP_FrameWork
changeset 60 7634585a4347
parent 0 307788aac0a8
permissions -rw-r--r--
This release addresses the following: - Multiple concurrent file transfer bug fixes. i.e. one device is concurrently receiving multiple files from multiple devices
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
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/*
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* Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:   
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*
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*/
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#include "rtpcommrecv.h"
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/////////////////////Class CRtpCommRecv///////////////////////////////////////
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// ================= MEMBER FUNCTIONS =======================
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// ---------------------------------------------------------------------------
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// SetRemoteAddress
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// ---------------------------------------------------------------------------
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//
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void CRtpCommRecv::SetRemoteAddress(TInetAddr& aAddr)
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    {
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    iRemoteAddr.SetAddress( aAddr.Address() ); 
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    iRemoteAddr.SetPort( aAddr.Port() );     
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    if (aAddr.Family() == KAfInet6 )
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    	{
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     	iRemoteAddr.SetAddress( aAddr.Ip6Address() ); 
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     	}    
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    iRemoteAddrSet = ETrue;
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    }
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// ---------------------------------------------------------------------------
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// C++ default constructor can NOT contain any code, that
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// might leave.
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// ---------------------------------------------------------------------------
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//
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CRtpCommRecv::CRtpCommRecv( TPortType aPortType, RSocket& aSocket, 
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                            TInt aPriority, MRtpErrNotify& aErrNotify,
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                            TBool aNonRtpObserverSet ) 
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    : CActive( aPriority ), 
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      iPortType( aPortType ),
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      iRecvNotify( NULL ),
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      iSocket( aSocket ),
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      iRtpErrNotify( aErrNotify ),
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      iNonRtpObserverSet(aNonRtpObserverSet)
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    {
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    // Note: high priority needed to prevent socket server buffers filling up
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    CActiveScheduler::Add( this );
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    }
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// ---------------------------------------------------------------------------
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// Symbian 2nd phase constructor can leave.
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// ---------------------------------------------------------------------------
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// 
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void CRtpCommRecv::ConstructL()
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    {
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    }
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// ---------------------------------------------------------------------------
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// Two-phased constructor.
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// ---------------------------------------------------------------------------
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//
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CRtpCommRecv* CRtpCommRecv::NewL( TPortType aPortType, RSocket& aSocket, 
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                                  TInt aPriority, MRtpErrNotify& aErrNotify,
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                                  TBool aNonRtpObserverSet )
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    {
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    CRtpCommRecv* self = new ( ELeave ) CRtpCommRecv( aPortType, aSocket, 
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                                                      aPriority, aErrNotify,
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                                                      aNonRtpObserverSet );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop(); //self
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// Destructor
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// ---------------------------------------------------------------------------
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//
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CRtpCommRecv::~CRtpCommRecv()
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    {
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    Cancel(); // -> in base class -> goes on to call DoCancel in this class...
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    }
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// ---------------------------------------------------------------------------
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// CRtpCommRecv::DoCancel()
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// Cancel ongoing requests.
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// ---------------------------------------------------------------------------
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//
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void CRtpCommRecv::DoCancel()
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    {
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    // Cancel asychronous read request
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    iSocket.CancelRead();
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    }
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// ---------------------------------------------------------------------------
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// CRtpCommRecv::RegisterReceivedNotify()
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// 
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// ---------------------------------------------------------------------------
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//
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void CRtpCommRecv::RegisterReceivedNotify( MReceivedNotify* aNotify )
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    {
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    iRecvNotify = aNotify;
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    }
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// ---------------------------------------------------------------------------
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// CRtpCommRecv::SetNonRtpObserverFlag()
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// 
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// ---------------------------------------------------------------------------
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//
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void CRtpCommRecv::SetNonRtpObserverFlag(TBool aValue)
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    {
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    iNonRtpObserverSet = aValue;
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    }
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// ---------------------------------------------------------------------------
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// CRtpCommRecv::Recv()
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// 
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// ---------------------------------------------------------------------------
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//
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TInt CRtpCommRecv::Recv( TDes8& aPacket )
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    {
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    if ( !IsActive() )
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        {
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        iSocket.RecvFrom( aPacket, iFromAddr, 0, iStatus );
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        SetActive();
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        return KErrNone;
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        }
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    else
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        {
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        return KErrInUse;
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        }
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    }
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// ---------------------------------------------------------------------------
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// CRtpCommRecv::RunL()
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// 
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// ---------------------------------------------------------------------------
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//
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void CRtpCommRecv::RunL()
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    {
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    RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL entry" );
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    if ( !iRecvNotify )
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		{
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     	RTP_DEBUG_PACKET( "CRtpCommRecv::RunL -- No receiver registered" );
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     	iRtpErrNotify.ErrorNotify( KErrNotReady );
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   		}
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    else
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    	{
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	  	if ( iStatus == KErrNone )
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	  	  	{
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	       	if (!iNonRtpObserverSet  &&
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                 iRemoteAddrSet && !iFromAddr.Match(iRemoteAddr))
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	            {
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	            // reject
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	            RTP_DEBUG_DETAIL( "Reject Rtp packet received" );
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	            iRecvNotify->OnPacketRejected(iPortType);
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	            }
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			else                    
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	       		{
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	       		//Note that Floor Control Msgs comes from the same remote addr with 
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	       		// rtp packets.
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	   		 	if ( iPortType == ERTPPort )
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	          		{
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		          	RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL -- Rtp Packet is received");
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			      	iRecvNotify->OnRtpReceivedL();
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	    	    	}
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	            else if ( iPortType == ERTCPPort )
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	      	  	    {
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	        	    RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL -- Rtcp Packet is received" );
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	        	    iRecvNotify->OnRtcpReceivedL();
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	        	    }
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	    	    else
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	      	  	    {
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	        	    // Do nothing
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	        	    RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL -- Unknown port type" );
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	        	    }
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	            }
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  	  	    }
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  		else
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      		{
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      	    RTP_DEBUG_DETAIL_DVALUE( "CRtpCommRecv::RunL -- ERROR: iStatus: ", iStatus.Int() );
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        	// Also let the client application know that this happened
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        	iRtpErrNotify.ErrorNotify( iStatus.Int() );
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        	// Let the session decide what to do with the error
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         	iRecvNotify->OnReceptionError( iPortType, iStatus.Int() );
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        	}
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    	}
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    RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL exit" );
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    }	
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   202
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// ---------------------------------------------------------------------------
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// CRtpCommRecv::IsSetRemoteAdress()
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// 
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// ---------------------------------------------------------------------------
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//
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TBool CRtpCommRecv::IsSetRemoteAdress()
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	{
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	TBool same = ETrue;
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	//This will be called by RtpSession classe to verify if the packet come from
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	// setting remote address. This is important when NonRtpObserver has been set
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	// in RunL and when NonRtpObs has been set, then it does not check remote address
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	// since some response might come from STUN server, but if "from" address is not
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	//checked then there could be some intrusion RTP valid packet and RTP stack is
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	// volunerable for this attack. 
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	if ( iRemoteAddrSet && !iFromAddr.Match(iRemoteAddr))
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		{
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		same = EFalse;
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        return same;
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        }
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    return same;    
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	}
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//  End of File
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   226
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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