--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rtp/srtpstack/src/tsrtpstreamoutstatenormal.cpp	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,108 @@
+/*
+* 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:    implementation
+*
+*/
+
+
+
+
+#include "tsrtpstreamoutstatenormal.h"
+#include "msrtpstreamoutcontext.h"
+#include "msrtpcryptohandlercontext.h"
+#include "msrtpcryptohandlercontextrtp.h"
+#include "msrtpcryptohandlercontextrtcp.h"
+#include "srtputils.h"
+
+// ----------------------------------------------------------------------------
+// TSRTPStreamOutStateNormal::TSRTPStreamOutStateNormal
+// ----------------------------------------------------------------------------
+//
+TSRTPStreamOutStateNormal::TSRTPStreamOutStateNormal(
+    MSRTPStreamOutContext& aStreamContext,
+    MSRTPCryptoHandlerContextRTP& aCryptoHandlerRTPContext,
+    MSRTPCryptoHandlerContextRTCP& aCryptoHandlerRTCPContext)
+    : TSRTPStreamOutStateBase(aStreamContext,
+                            aCryptoHandlerRTPContext, 
+                            aCryptoHandlerRTCPContext)
+    {
+    }
+
+// ----------------------------------------------------------------------------
+// TSRTPStreamOutStateNormal::DoProtectRtpL
+// ----------------------------------------------------------------------------
+//		
+HBufC8* TSRTPStreamOutStateNormal::DoProtectRtpL(const TDesC8& aPacket)
+    {
+    // first initialize current RTP packet..
+    SRTP_DEBUG_DETAIL("TSRTPStreamOutStateNormal::DoProtectRtpL Entry");
+    
+    SRTP_DEBUG_TINT_VALUE( "and packet before encrypted length is", aPacket.Length() );
+                   
+    iCryptoHandlerRTPContext.InitializePlainPacketL(aPacket);    
+    
+    // Step 2 (in RFC 3711, section 3.3):
+    // count the packet index i
+    iCryptoHandlerRTPContext.CountSenderPacketIndexL();
+     
+     // derive session keys..
+    if (iCryptoHandlerRTPContext.MasterKeysUpdated())
+       {
+       iCryptoHandlerRTPContext.DeriveSessionKeysL();        
+       }
+               
+     // encrypt..
+	SRTP_DEBUG_DETAIL( "EncrypL" );
+     
+    HBufC8* protectedPacket = iCryptoHandlerRTPContext.EncryptL();
+     
+     // finally, conditional update of roll-over counter..
+     //Should check the next Packet Index and decide if need to be re-key
+    iCryptoHandlerRTPContext.UpdateROC();
+                  
+    
+
+	SRTP_DEBUG_DETAIL( "TSRTPStreamOutStateNormal::DoProtectRtpL Exit");
+    
+    // return encrypted RTP packet
+    return protectedPacket;    
+    
+    }
+
+// ----------------------------------------------------------------------------
+// TSRTPStreamOutStateNormal::DoProtectRtcpL
+// ----------------------------------------------------------------------------
+//		
+HBufC8* TSRTPStreamOutStateNormal::DoProtectRtcpL(const TDesC8& aPacket)
+    {
+     // first initialize current RTP packet..
+    iCryptoHandlerRTCPContext.InitializePlainPacketL(aPacket);    
+    
+    // Step 2 (in RFC 3711, section 3.3):
+    // count the packet index i
+     iCryptoHandlerRTCPContext.CountSenderPacketIndexL();
+     
+     // derive session keys..
+     if (iCryptoHandlerRTCPContext.MasterKeysUpdated())
+        {
+        iCryptoHandlerRTCPContext.DeriveSessionKeysL();        
+        }
+               
+     // encrypt..
+     HBufC8* protectedPacket = iCryptoHandlerRTCPContext.EncryptL();
+     
+    //Should check the next Packet Index and decide if need to be re-key
+    // return encrypted RTP packet
+    return protectedPacket;    
+    }