--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rtp/srtpstack/inc/srtppacketrtp.h Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,154 @@
+/*
+* Copyright (c) 2004 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: SRTP packet class (RTP)
+*
+*/
+
+
+
+
+#ifndef __SRTP_PACKET_RTP_H__
+#define __SRTP_PACKET_RTP_H__
+
+// INCLUDES
+#include <in_sock.h>
+#include "srtppacket.h"
+#include <e32math.h>
+
+// FORWARD DECLARATIONS
+class CSRTPCryptoHandler;
+
+/**
+* Contains general RTP-specific packet routines
+*/
+class CSRTPPacketRTP : public CSRTPPacket
+ {
+ public:
+ static CSRTPPacketRTP* NewL(const TDesC8& aPacket,
+ CSRTPCryptoHandler& aHandler);
+
+ /**
+ * Get sequence number.
+ * @return 16 bit sequence number.
+ */
+ TUint16 SequenceNumber();
+
+ /**
+ * Get packet index.
+ * @return TUint64 packet index.
+ */
+ TUint64 PacketIndex();
+
+ /**
+ * Set packet index.
+ * @param aPacketIndex new packet index
+ * @return void
+ */
+ void SetPacketIndex(TUint64 aPacketIndex);
+
+ /**
+ * Count sender packet index.
+ * @return void
+ */
+ void CountSenderPacketIndex();
+
+ /**
+ * Create encrypted packet.
+ * @param aEncryptedPayloadPtr encrypted payload to be copied
+ * @leave KErrNone if success, system-wide error code otherwise
+ * @return HBufC8* encrypted packet
+ */
+ HBufC8* CreateEncryptedPacketL(TUint8* aEncryptedPayloadPtr);
+
+ /**
+ * virtual function for creating decrypted packet.
+ * @param aDecryptedPayloadPtr decrypted payload to be copied
+ * @leave KErrNone if success, system-wide error code otherwise
+ * @return HBufC8* decrypted packet
+ * implemented in CSRTPPacketSRTP.
+ */
+ virtual HBufC8* CreateDecryptedPacketL(TUint8* aDecryptedPayloadPtr);
+
+ /**
+ * virtual function for getting the authentication tag
+ * implemented in CSRTPPacketSRTP.
+ */
+ virtual TPtrC8 AuthenticationTag();
+
+ /**
+ * virtual function for getting the master key identifier
+ * implemented in CSRTPPacketSRTP.
+ */
+ virtual TPtrC8 MasterKeyIdentifier();
+
+ /*
+ * Update header length member
+ * @leave KErrNone if success, system-wide error code otherwise
+ * @return void
+ */
+ void UpdateHeaderLengthL();
+
+ /**
+ * Get Sender Roll-Over Counter from RTP/SRTP packets defined by RCC mode
+ * @return 32 bit unsigned integer
+ */
+ TUint32 GetSenderROC();
+
+ protected: //methods
+ CSRTPPacketRTP (const TDesC8& aPacket,
+ CSRTPCryptoHandler& aHandler);
+ ~CSRTPPacketRTP();
+
+ /**
+ * Update payload length information
+ * @return void
+ */
+ void UpdatePayloadLength();
+ void ConstructL();
+
+ TBool TagWithROCLengthL();
+
+ private: //methods
+
+ /**
+ * Read sequence number and update class member
+ * @return void
+ */
+ void UpdateSequenceNumber();
+
+ /**
+ * Count size of the encrypted packet
+ * @return TUint size of the encrypted packet
+ */
+ TUint CountEncryptedPacketSizeL();
+
+ /**
+ * Count size of the decrypted packet
+ * @return TUint size of the decrypted packet
+ */
+ TUint CountDecryptedPacketSize();
+
+ private: //data
+ TUint16 iSequenceNumber; // sequence number
+ TUint64 iPacketIndex; // packet index
+ TUint32 iSenderROC; //used in RCC modes
+ #ifdef EUNIT_TESTING
+ friend class UT_CSRTPCryptoHandlerSRTP;
+ friend class UT_CSRTPCryptoHandler;
+ #endif
+
+ };
+
+#endif // __SRTP_PACKET_RTP_H__
+