--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtp/srtpstack/src/srtpstream.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,330 @@
+/*
+* Copyright (c) 2005 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:    Represents an SRTP stream.
+*
+*/
+
+
+
+
+// INCLUDES
+#include "srtpstream.h"
+#include "srtpsession.h"
+#include "srtpcryptohandler.h"
+#include "srtpcryptohandlersrtp.h"
+#include "srtpcryptohandlersrtcp.h"
+#include "msrtprekeyingobserver.h"
+#include "srtpcryptocontext.h"
+
+// CONSTANTS
+const TInt CSRTPStream::iStreamOffset = _FOFF( CSRTPStream, iStreamLink );
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::SetROC()
+// 
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CSRTPStream::SetROC(  TUint32 aROC )
+    {
+    iROC = aROC;
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::CSRTPStream
+// 
+// ---------------------------------------------------------------------------
+//
+CSRTPStream::CSRTPStream( CSRTPSession& aSession,
+                                      TUint aSSRC,
+                                      TBool aIsStreamInType)
+    :   iSession(aSession),
+        iContext(NULL),
+        iObserver(NULL),
+        iStrmSpecificCrypto(EFalse), 
+        iHandlerRTP(NULL),       
+        iHandlerRTCP(NULL),       
+        iROC(0),
+        iSSRC(aSSRC),
+        iIsStreamInType(aIsStreamInType),
+        iRekey(EFalse)
+    {
+    iSession.AddStreamToList(this);    
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::CSRTPStream
+// 
+// ---------------------------------------------------------------------------
+//
+CSRTPStream::CSRTPStream( CSRTPSession& aSession,
+                                      TUint aSSRC,
+                                      CSRTPCryptoContext* aCon,
+                                      MSRTPReKeyingObserver& aObs ,
+                                      TBool aIsStreamInType)
+      : iSession(aSession),
+        iContext(aCon),
+        iObserver(&aObs),
+        iStrmSpecificCrypto(ETrue),
+        iHandlerRTP(NULL),
+        iHandlerRTCP(NULL),
+        iROC(0),
+        iSSRC(aSSRC),
+        iIsStreamInType(aIsStreamInType),
+        iRekey(EFalse)    
+    {
+    iSession.AddStreamToList(this);
+    }
+	
+// ---------------------------------------------------------------------------
+// CSRTPStream::CSRTPStream
+// 
+// ---------------------------------------------------------------------------
+//
+CSRTPStream::CSRTPStream( CSRTPSession& aSession,
+                                      TUint aSSRC,
+                                      MSRTPReKeyingObserver& aObs ,
+                                      TBool aIsStreamInType)
+      : iSession(aSession),
+        iContext(NULL),
+        iObserver(&aObs),
+        iStrmSpecificCrypto(EFalse),
+        iHandlerRTP(NULL),
+        iHandlerRTCP(NULL),
+        iROC(0),
+        iSSRC(aSSRC),
+        iIsStreamInType(aIsStreamInType),
+        iRekey(EFalse)      
+    {
+    iSession.AddStreamToList(this);
+    }
+// ---------------------------------------------------------------------------
+// CSRTPStream::CSRTPStream
+// 
+// ---------------------------------------------------------------------------
+//
+CSRTPStream::CSRTPStream( CSRTPSession& aSession,
+                          TBool aIsStreamInType)
+    :   iSession(aSession),
+        iContext(NULL),
+        iObserver(NULL),
+        iStrmSpecificCrypto(EFalse), 
+        iHandlerRTP(NULL),       
+        iHandlerRTCP(NULL),       
+        iROC(0),
+        iSSRC(0),                // set dummy 0 for SSRC in "late binding" mode
+        iIsStreamInType(aIsStreamInType),
+        iRekey(EFalse)
+    {
+    iSession.AddStreamToList(this);    
+    }
+
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::CSRTPStream
+// 
+// ---------------------------------------------------------------------------
+//
+CSRTPStream::CSRTPStream( CSRTPSession& aSession,
+                                      CSRTPCryptoContext* aCon,
+                                      MSRTPReKeyingObserver& aObs,
+                                      TBool aIsStreamInType)
+      : iSession(aSession),
+        iContext(aCon),
+        iObserver(&aObs),
+        iStrmSpecificCrypto(ETrue),
+        iHandlerRTP(NULL),       
+        iHandlerRTCP(NULL),       
+        iROC(0),
+        iSSRC(0),          // set dummy 0 for SSRC in "late binding" mode
+        iIsStreamInType(aIsStreamInType),
+        iRekey(EFalse)
+    {
+    iSession.AddStreamToList(this);
+    }
+	
+// ---------------------------------------------------------------------------
+// CSRTPStream::CSRTPStream
+// 
+// ---------------------------------------------------------------------------
+//
+CSRTPStream::CSRTPStream( CSRTPSession& aSession,
+                                      MSRTPReKeyingObserver& aObs,
+                                      TBool aIsStreamInType)
+      : iSession(aSession),
+        iContext(NULL),
+        iObserver(&aObs),
+        iStrmSpecificCrypto(EFalse),
+        iHandlerRTP(NULL),       
+        iHandlerRTCP(NULL),       
+        iROC(0),
+        iSSRC(0),          // set dummy 0 for SSRC in "late binding" mode
+        iIsStreamInType(aIsStreamInType),
+        iRekey(EFalse)
+    {
+    iSession.AddStreamToList(this);
+    }
+// ---------------------------------------------------------------------------
+// CSRTPStream::ROC
+// 
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TUint32 CSRTPStream::ROC() const
+    {
+    return iROC;
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::SSRC
+// 
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TUint CSRTPStream::SSRC() const
+    {
+    return iSSRC;
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::SSRC
+// 
+// ---------------------------------------------------------------------------
+//
+void CSRTPStream::SetSSRC( const TUint aSSRC )
+	{
+	//should only be set when it is in latebinding state with In-Stream
+	iSSRC=aSSRC;	
+	}
+// ---------------------------------------------------------------------------
+// CSRTPStream::GetCryptoContext()
+// 
+// ---------------------------------------------------------------------------
+//
+CSRTPCryptoContext& CSRTPStream::GetCryptoContext()
+    {
+    if (iStrmSpecificCrypto || iContext) 
+    	{
+    	return *iContext;		
+    	}
+    else
+    	{
+    	return iSession.GetCryptoContext();    
+    	}	
+    }
+
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::GetCryptoContext()
+// 
+// ---------------------------------------------------------------------------
+//
+TBool CSRTPStream::IsContextSet()
+    {
+    if (iStrmSpecificCrypto && iHandlerRTP && iHandlerRTCP) 
+    	{
+    	return ETrue;		
+    	}
+    if (iSession.iSesssionCrypto && iHandlerRTP && iHandlerRTCP )
+    	{
+    	return ETrue;    
+    	}	
+    return EFalse;	
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::~CSRTPStream
+// 
+// ---------------------------------------------------------------------------
+//
+CSRTPStream::~CSRTPStream()
+    {
+	iSession.RemoveStreamFromList(this);   
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::CreateCryptoHandlerSRTPL
+// 
+// ---------------------------------------------------------------------------
+//
+void CSRTPStream::CreateCryptoHandlerSRTPL()
+    {
+    if (!iHandlerRTP)
+        {
+        iHandlerRTP = CSRTPCryptoHandlerSRTP::NewL(*this); 
+        }    
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::CreateCryptoHandlerSRTCPL
+// 
+// ---------------------------------------------------------------------------
+//
+void CSRTPStream::CreateCryptoHandlerSRTCPL()
+    {
+    if (!iHandlerRTCP)
+        {
+        iHandlerRTCP = CSRTPCryptoHandlerSRTCP::NewL(*this); 	
+        }    
+    }
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::ReKeyNeeded
+// 
+// ---------------------------------------------------------------------------
+//
+void CSRTPStream::ReKeyNeeded()
+	{
+	if (iObserver)
+		{
+		iObserver->SRTPMasterKeyStaleEvent(*this);
+		}
+	else
+		{
+		iSession.ReKeyNeeded(*this,iStrmSpecificCrypto );
+		}	
+	}
+
+// ---------------------------------------------------------------------------
+// CSRTPStream::KeyExpired
+// 
+// ---------------------------------------------------------------------------
+//
+void CSRTPStream::KeyExpired()
+	{
+	iRekey = ETrue;
+	iSession.iRekey = ETrue;
+	}
+// -----------------------------------------------------------------------------
+// CSRTPStream::UpdateCryptoAndStatesL()
+// -----------------------------------------------------------------------------
+//
+void CSRTPStream::UpdateCryptoHandlerL()
+	{
+	//Note ROC is not updating
+	
+    delete iHandlerRTP; iHandlerRTP=NULL;    
+	delete iHandlerRTCP;iHandlerRTCP=NULL;
+
+  	//should create handler and initial state
+	CreateCryptoHandlerSRTPL();
+	CreateCryptoHandlerSRTCPL();
+	}	
+	
+// ---------------------------------------------------------------------------
+// CSRTPStream::CreateCryptoHandlerSRTCPL
+// 
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TBool CSRTPStream::StreamType()
+	{
+	return iIsStreamInType;
+	}