This release addresses the following issues:
1. The crash bug fix when receiving file
2. Now the sending is based on MSRP messages, there is no longer file receiving or sending. Client sends data as MSRP was designed.
3. Soma MSRP stack was created so that the client told the correct session-id, Symbian stack generated it by itself. This is not allowed, it was changed so that clients tell the session-id (same as used in SIP INVITE).
4. Unnecessary division of data to chunks removed when there is no need to interrupt sending. The message is sent in as few chunks as possible.
5. Stack can now receive files and chunks with ?unlimited? size. Old stack wrote the incoming data to memory and did not utilize disk space until the end of chunk was reached (large chunks from another client crashed it).
6. Now when writing the incoming data to file, it will take into account the byte-range header values. So, this complies with the RFC4975 requirements that stack must be able to handle chunks that come in any sequence.
7. Some buffering changes to outgoing/incoming data.
8. The outgoing data is now checked that it does not contain the created transaction-id before sending the data.
9. MSRP success reports are now implemented and tested against servers.
10. Progress report system fixed so progress is now visible on client (all the way to 100%).
11. Message Cancel receiving / Cancel sending now corrected and made to work as rfc4975 requires. (termination from sender and error code from receiver when cancelling).
12. Bug correction related to messages received not belonging to any session, old stack implementation did send error response, but after response was written it did give the buffer to client anyway. Now corrected.
/*
* 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: Represents an SRTP stream.
*
*/
#ifndef __SRTP_STREAM_H__
#define __SRTP_STREAM_H__
// INCLUDES
#include <e32def.h>
#include <e32base.h>
// FORWARD DECLARATIONS
class CSRTPSession;
class CSRTPCryptoContext;
class MSRTPReKeyingObserver;
class CSRTPCryptoHandlerSRTP;
class CSRTPCryptoHandlerSRTCP;
/**
* Represents an SRTP stream.
*/
class CSRTPStream : public CBase
{
public:
/**
* iStreamOffset, List offset.
*/
static const TInt iStreamOffset;
/**
* iStreamLink, Link to list.
*/
TSglQueLink iStreamLink;
public:
/**
* Set roll-over counter value.
* RFC 3711 3.3.1 ROC() can not be reset to 0 after Re-Key
* @param aROC The new ROC value.
* @return void
*/
IMPORT_C void SetROC( TUint32 aROC );
/**
* Get roll-over counter value.
* @return current ROC value.
*/
IMPORT_C TUint32 ROC( ) const;
/**
* Get SSRC
* @return SSRC.
*/
IMPORT_C TUint SSRC( ) const;
/**
* Set SSRC value if the stream's SSRC is 0 as late binding
* @param aSSRC The new SSRC value.
* @return void
*/
void SetSSRC( const TUint aSSRC );
/**
* Get cryptographic context associated for this stream
* or the one associated for the session
* @return CSRTPCryptoContext
*/
CSRTPCryptoContext& GetCryptoContext();
/**
* Call for Rekey
* @return void
*/
void ReKeyNeeded();
/**
* Call for KeyExpired
* @return void
*/
void KeyExpired();
/**
* Destructor
*/
~CSRTPStream();
/**
* Tell stream type is InStream or OutStream
* @return TBool
*/
IMPORT_C TBool StreamType();
/**
* Check if crypto context has been set
* @return ETrue if crypto context is existed, otherwise EFalse
*/
TBool IsContextSet();
/**
* Delete the existed crypto context and re-initial the states
* @param None
* @leave KErrNone if success, system-wide error code otherwise
* @return void
*/
virtual void UpdateCryptoAndStatesL()=0;
protected: //methods
CSRTPStream (CSRTPSession& aSession,
const TUint aSSRC,
TBool aStreamType );
CSRTPStream (CSRTPSession& aSession,
TUint aSSRC,
CSRTPCryptoContext* aCon,
MSRTPReKeyingObserver& aObs,
TBool aStreamType );
CSRTPStream (CSRTPSession& aSession,
TBool aStreamType);
CSRTPStream (CSRTPSession& aSession,
CSRTPCryptoContext* aCon,
MSRTPReKeyingObserver& aObs,
TBool aStreamType );
CSRTPStream (CSRTPSession& aSession,
TUint aSSRC,
MSRTPReKeyingObserver& aObs,
TBool aStreamType );
CSRTPStream (CSRTPSession& aSession,
MSRTPReKeyingObserver& aObs,
TBool aStreamType );
/**
* Create RTP crypto handler
* @return void
*/
void CreateCryptoHandlerSRTPL();
/**
* Create RTCP crypto handler
* @return void
*/
void CreateCryptoHandlerSRTCPL();
/**
* Delete the existed crypto handler and create a new one
* @return void
*/
void UpdateCryptoHandlerL();
protected: //data
CSRTPSession& iSession; // access to session
CSRTPCryptoContext* iContext; // crypto context
MSRTPReKeyingObserver* iObserver; // observer (application)
TBool iStrmSpecificCrypto; // do we have stream or session-
// spesific context
CSRTPCryptoHandlerSRTP* iHandlerRTP; // crypto handling class for RTP
CSRTPCryptoHandlerSRTCP* iHandlerRTCP; // crypto handling class for RTCP
TUint32 iROC; // unsigned 32 bit ROC
TUint iSSRC; // SSRC
TBool iIsStreamInType;
TBool iRekey;
private:
#ifdef EUNIT_TESTING
friend class UT_CSRTPCryptoHandlerSRTP;
friend class UT_CSRTPCryptoHandlerSRTCP;
friend class UT_CSRTPCryptoHandler;
friend class UT_CSRTPStreamIn;
friend class UT_CSRTPStreamOut;
friend class UT_CSRTPStream;
friend class UT_CSRTPCryptoContext;
#endif
};
#endif // __SRTP_STREAM_H__