| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Fri, 16 Apr 2010 16:37:27 +0300 | |
| changeset 13 | 33016869e0dd |
| parent 0 | a03f92240627 |
| permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: UDP protocol implementation for IP proxy |
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* |
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*/ |
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// INCLUDE FILES |
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#include "CProtocolUDP.h" |
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#include "CExprUDPMsg.h" |
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#include "MSocketWriter.h" |
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#include "MProtocolObserverUDP.h" |
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#include "CommRouterDefinitions.h" |
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#define DEBUG_FILENAME "IPProxyEngine.log" |
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#include "DebugPrint.h" |
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// ============================ MEMBER FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::CProtocolUDP |
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// ----------------------------------------------------------------------------- |
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// |
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CProtocolUDP::CProtocolUDP( MProtocolObserverUDP* aObserver ) |
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: iObserver( aObserver ) |
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{
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__ASSERT_DEBUG( iObserver, User::Invariant() ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::ConstructL |
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// ----------------------------------------------------------------------------- |
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// |
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void CProtocolUDP::ConstructL() |
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{
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// Add all the expressions for UDP |
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iExpressionArray = new (ELeave) CArrayPtrFlat<MBPExpression> ( 3 ); |
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CExprUDPMsg* UDPMsg = CExprUDPMsg::NewL( this ); |
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iExpressionArray->AppendL( UDPMsg ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::NewL |
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// ----------------------------------------------------------------------------- |
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// |
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CProtocolUDP* CProtocolUDP::NewL( MProtocolObserverUDP* aObserver ) |
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{
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CProtocolUDP* self = CProtocolUDP::NewLC( aObserver ); |
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CleanupStack::Pop(); |
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return self; |
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} |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::NewLC |
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// ----------------------------------------------------------------------------- |
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// |
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CProtocolUDP* CProtocolUDP::NewLC( MProtocolObserverUDP* aObserver ) |
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{
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CProtocolUDP* self = new( ELeave ) CProtocolUDP( aObserver ); |
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CleanupStack::PushL( self ); |
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self->ConstructL(); |
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return self; |
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} |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::~CProtocolUDP |
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// ----------------------------------------------------------------------------- |
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// |
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CProtocolUDP::~CProtocolUDP() |
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{
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if ( iExpressionArray ) |
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{
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iExpressionArray->ResetAndDestroy(); |
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delete iExpressionArray; |
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} |
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} |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::FrameStarted |
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// ----------------------------------------------------------------------------- |
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// |
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void CProtocolUDP::FrameStarted() |
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{
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iObserver->FrameStarted(); |
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} |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::FrameParsedL |
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// ----------------------------------------------------------------------------- |
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// |
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void CProtocolUDP::FrameParsedL( TUint aPort, const TDesC8& aData ) |
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{
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iObserver->UDPFrameParsedL( aPort, aData ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::ProtocolErrorL |
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// ----------------------------------------------------------------------------- |
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// |
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void CProtocolUDP::ProtocolErrorL( |
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TInt aErrorCode, const TDesC8& aReceivedData ) |
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{
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iObserver->ProtocolErrorL( aErrorCode, aReceivedData ); |
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} |
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123 |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::WriteFrameL |
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// ----------------------------------------------------------------------------- |
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// |
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void CProtocolUDP::WriteFrameL( MSocketWriter& aSocketWriter, |
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TUint aPeerPort, TUint aOriginalPort, const TDesC8& aData ) const |
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{
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DEBUG_PRINT( DEBUG_STRING( |
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"CProtocolUDP::WriteFrameL(), peer port=%d, original port=%d" ), |
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aPeerPort, aOriginalPort ); |
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134 |
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TInt bufSize = 0; |
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bufSize += KUDPPrefix().Length(); |
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bufSize += KHexDecimalLength; |
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bufSize += KPortSuffix().Length(); |
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bufSize += KHexDecimalLength; |
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bufSize += KLengthSuffix().Length(); |
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bufSize += aData.Length(); |
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bufSize += KDataSuffix().Length(); |
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bufSize += KMessageSuffix().Length(); |
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144 |
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TBuf8<KHexDecimalLength> hexbuf; |
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HBufC8* buf = HBufC8::NewLC( bufSize ); |
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TPtr8 ptr( buf->Des() ); |
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148 |
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// Append UDP prefix |
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ptr.Append( KUDPPrefix ); |
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151 |
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// Append peer port |
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hexbuf.Format( KHexFormat, aPeerPort ); |
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ptr.Append( hexbuf ); |
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ptr.Append( KPortSuffix ); |
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156 |
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// Append data length |
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hexbuf.Format( KHexFormat, aData.Length() ); |
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ptr.Append( hexbuf ); |
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ptr.Append( KLengthSuffix ); |
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161 |
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// Append data |
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ptr.Append( aData ); |
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ptr.Append( KDataSuffix ); |
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ptr.Append( KMessageSuffix ); |
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166 |
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// Write to socket |
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aSocketWriter.WriteL( *buf ); |
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169 |
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CleanupStack::PopAndDestroy( buf ); |
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} |
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172 |
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// ----------------------------------------------------------------------------- |
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// CProtocolUDP::HandleReceivedDataL |
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// ----------------------------------------------------------------------------- |
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// |
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TBool CProtocolUDP::HandleReceivedDataL( TDes8& aData, TInt& aStartPos, |
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TInt& aLength ) |
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{
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TBool msgHandled = EFalse; |
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TInt protCount = iExpressionArray->Count(); |
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182 |
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for ( TInt i = 0; i < protCount; i++ ) |
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{
|
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msgHandled = iExpressionArray->At( i )->HandleRecievedMsgL( aData, |
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aStartPos, |
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aLength); |
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if ( msgHandled ) |
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{
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break; |
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} |
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} |
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193 |
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return msgHandled; |
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} |
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// End of File |