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: General SRTP packet class (RTP/SRTP/RTCP/SRTCP)
*
*/
#ifndef __SRTP_PACKET_H__
#define __SRTP_PACKET_H__
// INCLUDES
#include <in_sock.h>
// FORWARD DECLARATIONS
class CSRTPCryptoHandler;
/**
* Contains general packet routines
*/
class CSRTPPacket : public CBase
{
public:
/**
* Get payload entry. Here the "payload" denotes the
* encrypted portion (incl. RTCP/SRTCP).
* @return pointer reference to the encrypted portion.
*/
TPtrC8 Payload();
/**
* Get header length.
* @return length of the header.
*/
TUint HeaderLength();
/**
* Get payload length (== length of the encrypted portion).
* @return length of the payload.
*/
TUint PayloadLength();
/**
* Get header and encrypted portion, excluding possible
* MKI and authentication tag.
* @return header and encrypted portion.
*/
TPtrC8 HeaderAndPayload();
/**
* Get the authentication portion for recv stream data
* For RTP this gets header and payload as authentication portion
* For RTCP it gets payload + SRTCP index
* @param rtcp if it is rtcp packet
* @leave KErrNone if success, system-wide error code otherwise
* @return payload concatenated with ROC.
*/
HBufC8* Get_Concatenated_MDataL(TBool rtcp);
/**
* Create a new packet by allocating given size
* and by copying header and given payload.
* This can be any packet: RTP/SRTP/RTCP/SRTCP
* @param aPacketSize new packet size.
* @param aPayloadPtr pointer to the payload to be copied.
* @leave KErrNone if success, system-wide error code otherwise
* @return new packet with header and payload.
*/
HBufC8* CopyHeaderAndPayloadL(TUint aPacketSize,
TUint8* aPayloadPtr);
~CSRTPPacket();
/**
* virtual function for creating decrypted packet,
* implemented in CSRTPPacketSRTP/CSRTPPacketSRTCP,
*/
virtual HBufC8* CreateDecryptedPacketL(TUint8* aDecryptedPayloadPtr);
/**
* virtual function for creating encrypted packet,
* implemented in CSRTPPacketRTP/CSRTPPacketRTCP,
*/
virtual HBufC8* CreateEncryptedPacketL(TUint8* aEncryptedPayloadPtr);
/**
* virtual function for getting the authentication tag,
* implemented in CSRTPPacketSRTP/CSRTPPacketSRTCP
*/
virtual TPtrC8 AuthenticationTag();
/**
* virtual function for getting the sequence number,
* implemented in CSRTPPacketRTP
*/
virtual TUint16 SequenceNumber();
/**
* virtual function for setting the packet index value,
* implemented in CSRTPPacketRTP
*/
virtual void SetPacketIndex(TUint64 aPacketIndex);
/**
* virtual function for getting the MKI value,
* implemented in CSRTPPacketSRTP/CSRTPPacketSRTCP
*/
virtual TPtrC8 MasterKeyIdentifier();
/**
* virtual function for counting the sender-side packet index
* implemented in CSRTPPacketRTP
*/
virtual void CountSenderPacketIndex();
/**
* virtual function for getting the packet index value,
* implemented in CSRTPPacketRTP
*/
virtual TUint64 PacketIndex();
/**
* Get Sender Roll-Over Counter from RTP/SRTP packets defined by RCC mode
* @return 32 bit unsigned integer
*/
virtual TUint32 GetSenderROC();
protected: //methods
/*
* Update header length member
* @leave KErrNone if success, system-wide error code otherwise
* @return void
*/
void UpdatePayloadLengthL();
/*
* Update payload member in this class
* @leave KErrNone if success, system-wide error code otherwise
* @return void
*/
void UpdatePayload();
/*
* Read sequence number.
* @return 16 bit sequence number.
*/
TUint16 GetSequenceNumber();
void ConstructL();
CSRTPPacket (const TDesC8& aPacket,
CSRTPCryptoHandler& aHandler);
protected: //data
TPtrC8 iPacket; // packet
const TUint8 *iDataP; // pointer to packet
CSRTPCryptoHandler& iHandler; // crypto handler
TPtrC8 iPayload; // payload (encrypted portion)
TUint iHeaderLength; // header length
TUint iPayloadLength; // payload length
private:
#ifdef EUNIT_TESTING
friend class UT_CSRTPCryptoHandlerSRTP;
#endif
};
#endif // __SRTP_PACKET_H__