natplugins/natptraversalcontroller/src/cnatbindingstunandcrlfrefresher.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:04:58 +0200
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/*
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* Copyright (c) 2007 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: 
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*
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*/
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#include "natfwstunbinding.h"
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#include "cnatbindingstunandcrlfrefresher.h"
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#include "cudpcrlfsender.h"
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#include "cnatbinding.h"
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// -----------------------------------------------------------------------------
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// CNATBindingSTUNAndCRLFRefresher::NewL
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// -----------------------------------------------------------------------------
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//
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CNATBindingSTUNAndCRLFRefresher* CNATBindingSTUNAndCRLFRefresher::NewL(
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    CDeltaTimer& aDeltaTimer,
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    TInt aRefreshInterval,
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    MNATBindingRefresherObserver& aObserver,
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    CNATBinding& aNATBinding,
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    RSocket& aSocket,
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    const TInetAddr& aAddr,
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    MNATTraversalSocketManager& aSocketManager)
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    {
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    CNATBindingSTUNAndCRLFRefresher* self =
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        CNATBindingSTUNAndCRLFRefresher::NewLC(
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            aDeltaTimer,aRefreshInterval,aObserver,aNATBinding,aSocket,
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            aAddr,aSocketManager);
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    CleanupStack::Pop(self);
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// CNATBindingSTUNAndCRLFRefresher::NewLC
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// -----------------------------------------------------------------------------
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//
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CNATBindingSTUNAndCRLFRefresher* CNATBindingSTUNAndCRLFRefresher::NewLC(
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    CDeltaTimer& aDeltaTimer,
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    TInt aRefreshInterval,
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    MNATBindingRefresherObserver& aObserver,
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    CNATBinding& aNATBinding,
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    RSocket& aSocket,
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    const TInetAddr& aAddr,
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    MNATTraversalSocketManager& aSocketManager)
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    {
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    CNATBindingSTUNAndCRLFRefresher* self =
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        new(ELeave)CNATBindingSTUNAndCRLFRefresher(aDeltaTimer,
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                                                   aRefreshInterval,
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                                                   aObserver,
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                                                   aNATBinding);
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    CleanupStack::PushL(self);
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    self->ConstructL(aSocket,aAddr,aSocketManager);
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// CNATBindingSTUNAndCRLFRefresher::CNATBindingSTUNAndCRLFRefresher
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// -----------------------------------------------------------------------------
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//
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CNATBindingSTUNAndCRLFRefresher::CNATBindingSTUNAndCRLFRefresher(
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    CDeltaTimer& aDeltaTimer,
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    TInt aRefreshInterval,
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    MNATBindingRefresherObserver& aObserver,
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    CNATBinding& aNATBinding)
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    : CNATBindingSTUNRefresher(aDeltaTimer,aRefreshInterval,
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                               aObserver,aNATBinding)
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    {
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    }
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// -----------------------------------------------------------------------------
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// CNATBindingSTUNAndCRLFRefresher::ConstructL
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// -----------------------------------------------------------------------------
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//
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void CNATBindingSTUNAndCRLFRefresher::ConstructL(
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    RSocket& aSocket,
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    const TInetAddr& aAddr,
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    MNATTraversalSocketManager& aSocketManager)
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    {
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    iCRLFSender = new(ELeave)CUdpCRLFSender(aSocket,aAddr,*this,aSocketManager);
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    }
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// -----------------------------------------------------------------------------
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// CNATBindingSTUNAndCRLFRefresher::~CNATBindingSTUNAndCRLFRefresher
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// -----------------------------------------------------------------------------
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//
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CNATBindingSTUNAndCRLFRefresher::~CNATBindingSTUNAndCRLFRefresher()
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    {
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    delete iCRLFSender;
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    }
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// -----------------------------------------------------------------------------
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// CNATBindingSTUNAndCRLFRefresher::NATBindingRefreshComplete
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// From MNATBindingRefresherObserver
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// -----------------------------------------------------------------------------
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//
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void CNATBindingSTUNAndCRLFRefresher::NATBindingRefreshComplete(
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    TInt aCompletionCode)
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    {
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    if (aCompletionCode == KErrNone)
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        {
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        CSTUNBinding* stunBinding = iNATBinding.Binding();
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        if (stunBinding)
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            {
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            TRAPD(err,iNATBinding.SendSTUNRequestL())
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            if (err)
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                {
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                iObserver.NATBindingRefreshComplete(err);
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                }
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            }
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        else
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            {
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            iObserver.NATBindingRefreshComplete(KErrNotFound);
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            }
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        }
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    else
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        {
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        iObserver.NATBindingRefreshComplete(aCompletionCode);
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        }
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    }
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// -----------------------------------------------------------------------------
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// CNATBindingSTUNAndCRLFRefresher::RefreshTimerExpiredL
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// From CNATBindingRefresher
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// -----------------------------------------------------------------------------
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//
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void CNATBindingSTUNAndCRLFRefresher::RefreshTimerExpiredL()
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    {
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    // First send the CRLF burst and when that completes
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    // send the STUN request (see NATBindingRefreshComplete).
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    iCRLFSender->Cancel();
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    iCRLFSender->CCRLFSender::Send();
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    }
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// -----------------------------------------------------------------------------
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// CNATBindingSTUNAndCRLFRefresher::CancelRefresh
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// From CNATBindingRefresher
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// -----------------------------------------------------------------------------
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//
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void CNATBindingSTUNAndCRLFRefresher::CancelRefresh()
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    {
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    iCRLFSender->Cancel();
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    CSTUNBinding* stunBinding = iNATBinding.Binding();
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    if (stunBinding)
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        {
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        stunBinding->CancelRequest();
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        }
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    }