// Copyright (c) 2006-2009 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:

// Agent Handling routines for Tunnel

// 

//

/**

 @file

 @internalComponent

*/

#include <comms-infras/nifprvar.h>			// for TAgentToFlowEventType

#include "TunnelAgentHandler.h"

#include "tunnelProvision.h"

#include "tunnelnifvar.h"

using namespace MeshMachine;

using namespace Messages;

CTunnelAgentHandler::CTunnelAgentHandler(const TTunnelInfo& aTunnelInfo)

  : iTunnelInfo(aTunnelInfo)

	{

	}

void CTunnelAgentHandler::ServiceStarted()

	{

	// Notify Agent of the CFProtocol name.  iTunnelInfo points to provisioning information

	// in AccessPointConfig.  This is valid while we are valid, but if there's ever a need

	// to decouple this in future, then GetExtension[L]() can be called to retrieve the

	// provisioning information on-the-fly.

	NotificationToAgent(static_cast<TFlowToAgentEventType>(ENifToAgentEventTypeSetIfName), (TAny*)&iTunnelInfo.iIfName);

	}

TInt CTunnelAgentHandler::NotificationFromAgent(TAgentToFlowEventType aEvent, TAny* aInfo)

/**

Deal with notification calls from the Agent.

Mainly the update/set address notifications that indicate a new Tunnel address.  A suitable

TTunnelAddressMsg message is formed and sent to the CFProtocol.

*/

	{

	TBool updateFlag = EFalse;

	switch (aEvent)

		{

	case EAgentToNifEventTypeUpdateAddress:

		updateFlag = ETrue;

		/* FALLTHROUGH */

	case EAgentToNifEventTypeSetAddress:

		{

        TInetIfConfig* ifConfig = reinterpret_cast<TInetIfConfig*>(aInfo);

		// The TInetIfConfig object pointed to by aInfo is on the stack (not the heap) of the

		// VPNConnAgt.  Consequently, the information is copied into a TunnelAddressMsg message

		// and sent over to the Tunnel CFProtocol.  There can be several of these messages internally

		// generated one after another in the Agent when the Tunnel address changes.

		//

		// Note that the message only contains those fields of TInetIfConfig that are

		// actually used by the Tunnel CFProtocol.  This keeps the message size small and

		// avoids having to use a "blob" message.

#ifndef __GCCXML__

        //Using Null TCommsId, as PostMessageToFlow will substitue it properly.

		return AnonPostMessageToFlow(

        		TTunnelAgentMessage::TTunnelSetAddress(

        				updateFlag,

        				ifConfig->iAddress,

        				ifConfig->iNameSer1,

        				ifConfig->iNameSer2

        				).CRef()

        		); // This will set the NodeChannelId properly before routing the message to the Flow.

#else

		return 0;

#endif

		}

	default:

		// All other messages handled in default base class manner.

		return CAgentNotificationHandler::NotificationFromAgent(aEvent, aInfo);

		}

	}