--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtp/rtpstack/src/rtpcommrecv.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,228 @@
+/*
+* Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   
+*
+*/
+
+
+
+
+#include "rtpcommrecv.h"
+
+/////////////////////Class CRtpCommRecv///////////////////////////////////////
+// ================= MEMBER FUNCTIONS =======================
+
+// ---------------------------------------------------------------------------
+// SetRemoteAddress
+// ---------------------------------------------------------------------------
+//
+void CRtpCommRecv::SetRemoteAddress(TInetAddr& aAddr)
+    {
+    iRemoteAddr.SetAddress( aAddr.Address() ); 
+    iRemoteAddr.SetPort( aAddr.Port() );     
+    if (aAddr.Family() == KAfInet6 )
+    	{
+     	iRemoteAddr.SetAddress( aAddr.Ip6Address() ); 
+     	}    
+    iRemoteAddrSet = ETrue;
+    }
+
+// ---------------------------------------------------------------------------
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// ---------------------------------------------------------------------------
+//
+CRtpCommRecv::CRtpCommRecv( TPortType aPortType, RSocket& aSocket, 
+                            TInt aPriority, MRtpErrNotify& aErrNotify,
+                            TBool aNonRtpObserverSet ) 
+    : CActive( aPriority ), 
+      iPortType( aPortType ),
+      iRecvNotify( NULL ),
+      iSocket( aSocket ),
+      iRtpErrNotify( aErrNotify ),
+      iNonRtpObserverSet(aNonRtpObserverSet)
+    {
+    // Note: high priority needed to prevent socket server buffers filling up
+    CActiveScheduler::Add( this );
+    }
+
+// ---------------------------------------------------------------------------
+// Symbian 2nd phase constructor can leave.
+// ---------------------------------------------------------------------------
+// 
+void CRtpCommRecv::ConstructL()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CRtpCommRecv* CRtpCommRecv::NewL( TPortType aPortType, RSocket& aSocket, 
+                                  TInt aPriority, MRtpErrNotify& aErrNotify,
+                                  TBool aNonRtpObserverSet )
+    {
+    CRtpCommRecv* self = new ( ELeave ) CRtpCommRecv( aPortType, aSocket, 
+                                                      aPriority, aErrNotify,
+                                                      aNonRtpObserverSet );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(); //self
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+CRtpCommRecv::~CRtpCommRecv()
+    {
+    Cancel(); // -> in base class -> goes on to call DoCancel in this class...
+    }
+
+// ---------------------------------------------------------------------------
+// CRtpCommRecv::DoCancel()
+// Cancel ongoing requests.
+// ---------------------------------------------------------------------------
+//
+void CRtpCommRecv::DoCancel()
+    {
+    // Cancel asychronous read request
+    iSocket.CancelRead();
+    }
+
+// ---------------------------------------------------------------------------
+// CRtpCommRecv::RegisterReceivedNotify()
+// 
+// ---------------------------------------------------------------------------
+//
+void CRtpCommRecv::RegisterReceivedNotify( MReceivedNotify* aNotify )
+    {
+    iRecvNotify = aNotify;
+    }
+
+// ---------------------------------------------------------------------------
+// CRtpCommRecv::SetNonRtpObserverFlag()
+// 
+// ---------------------------------------------------------------------------
+//
+void CRtpCommRecv::SetNonRtpObserverFlag(TBool aValue)
+    {
+    iNonRtpObserverSet = aValue;
+    }
+
+// ---------------------------------------------------------------------------
+// CRtpCommRecv::Recv()
+// 
+// ---------------------------------------------------------------------------
+//
+TInt CRtpCommRecv::Recv( TDes8& aPacket )
+    {
+    if ( !IsActive() )
+        {
+        iSocket.RecvFrom( aPacket, iFromAddr, 0, iStatus );
+      
+        SetActive();
+        return KErrNone;
+        }
+    else
+        {
+        return KErrInUse;
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CRtpCommRecv::RunL()
+// 
+// ---------------------------------------------------------------------------
+//
+void CRtpCommRecv::RunL()
+    {
+    RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL entry" );
+    if ( !iRecvNotify )
+		{
+     	RTP_DEBUG_PACKET( "CRtpCommRecv::RunL -- No receiver registered" );
+     	iRtpErrNotify.ErrorNotify( KErrNotReady );
+   		}
+    else
+    	{
+	  	if ( iStatus == KErrNone )
+	  	  	{
+	       	if (!iNonRtpObserverSet  &&
+                 iRemoteAddrSet && !iFromAddr.Match(iRemoteAddr))
+	            {
+	            // reject
+	            RTP_DEBUG_DETAIL( "Reject Rtp packet received" );
+    
+	            iRecvNotify->OnPacketRejected(iPortType);
+	            }
+			else                    
+	       		{
+	       		//Note that Floor Control Msgs comes from the same remote addr with 
+	       		// rtp packets.
+	   		 	if ( iPortType == ERTPPort )
+	          		{
+		          	RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL -- Rtp Packet is received");
+			      	iRecvNotify->OnRtpReceivedL();
+	    	    	}
+	            else if ( iPortType == ERTCPPort )
+	      	  	    {
+	        	    RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL -- Rtcp Packet is received" );
+	        	    iRecvNotify->OnRtcpReceivedL();
+	        	    }
+	    	    else
+	      	  	    {
+	        	    // Do nothing
+	        	    RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL -- Unknown port type" );
+	        	    }
+	            }
+  	  	    }
+  		else
+      		{
+      	    RTP_DEBUG_DETAIL_DVALUE( "CRtpCommRecv::RunL -- ERROR: iStatus: ", iStatus.Int() );
+        	// Also let the client application know that this happened
+        	iRtpErrNotify.ErrorNotify( iStatus.Int() );
+        	// Let the session decide what to do with the error
+         	iRecvNotify->OnReceptionError( iPortType, iStatus.Int() );
+        	}
+    	}
+    RTP_DEBUG_DETAIL( "CRtpCommRecv::RunL exit" );
+    }	
+
+// ---------------------------------------------------------------------------
+// CRtpCommRecv::IsSetRemoteAdress()
+// 
+// ---------------------------------------------------------------------------
+//
+TBool CRtpCommRecv::IsSetRemoteAdress()
+	{
+	TBool same = ETrue;
+	//This will be called by RtpSession classe to verify if the packet come from
+	// setting remote address. This is important when NonRtpObserver has been set
+	// in RunL and when NonRtpObs has been set, then it does not check remote address
+	// since some response might come from STUN server, but if "from" address is not
+	//checked then there could be some intrusion RTP valid packet and RTP stack is
+	// volunerable for this attack. 
+	if ( iRemoteAddrSet && !iFromAddr.Match(iRemoteAddr))
+		{
+		same = EFalse;
+        return same;
+        }
+    return same;    
+	}
+
+//  End of File
+
+
+