// Copyright (c) 2005-2009 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:

// CNifIfBase and CProtocolBase shim layer functionality

// 

//

/**

 @file nif.cpp

*/

#include <e32base.h>

#include <comms-infras/ss_subconnflow.h>

#include <comms-infras/ss_protflow.h>

#include "in_sock.h"

#include "in_iface.h"

#include "in6_if.h"

#include "nif6.h"

#include "notify.h"

#include "panic.h"

#include "IPProtoDeMux.h"

using namespace ESock;

//

// CIPShimIfBase methods //

//

CIPShimIfBase6* CIPShimIfBase6::NewL(const TDesC8& aProtocolName)

	{

	CIPShimIfBase6* p = new (ELeave) CIPShimIfBase6(aProtocolName);

	CleanupStack::PushL(p);

	p->ConstructL();

	CleanupStack::Pop(p);

	return p;

	}

CIPShimIfBase6::CIPShimIfBase6(const TDesC8& aProtocolName)

  : CIPShimIfBase(aProtocolName)

	{

	iConfig6.iFamily = KAFUnspec;

	}

TInt CIPShimIfBase6::ServiceInfoControl(TDes8& aOption, TUint aName)

/**

Service KSoIfInfo/KSoIfInfo6 calls from upper protocol

*/

	{

	TBinderInfo* ourInfo = NULL;

	// Validate the size of structure passed in

	switch (aName)

		{

	case KSoIfInfo:

		return KErrNotSupported;

	case KSoIfInfo6:

		ASSERT(aOption.Length() == sizeof(TSoIfInfo6));

		if (iConfig6.iFamily != KAfInet6)

			{

			return KErrNotSupported;

			}

		ourInfo = &iConfig6.iInfo;

		break;

	default:

		Panic(EBadInfoControlOption);

		}

	TUint8* ptr = const_cast<TUint8*>(aOption.Ptr());

	TSoIfInfo& info = reinterpret_cast<TSoIfInfo&>(*ptr);

	// Fill in iFeatures, iMtu, iSpeedMetric

	info.iFeatures = ourInfo->iFeatures;

	info.iSpeedMetric = ourInfo->iSpeedMetric;

	info.iMtu = ourInfo->iMtu;

	if (aName == KSoIfInfo6)

		{

		TSoIfInfo6& info = reinterpret_cast<TSoIfInfo6&>(*ptr);

		// For IP6, also fill in iRMtu

		info.iRMtu = ourInfo->iRMtu;

		}

	return KErrNone;

	}

TInt CIPShimIfBase6::ServiceConfigControl(TDes8& aOption)

/**

Service KSoIfConfig calls from upper protocol

*/

	{

	TUint8* ptr = const_cast<TUint8*>(aOption.Ptr());

	TUint family = reinterpret_cast<TSoIfConfigBase&>(*ptr).iFamily;

	switch (family)

		{

	case KAfInet6:					// IP6

		{

		ASSERT(aOption.Length() == sizeof(TSoInet6IfConfig));

		TSoInet6IfConfig& cf = reinterpret_cast<TSoInet6IfConfig&>(*ptr);

		if (iConfig6.iFamily != KAfInet6)

			{

			return KErrNotSupported;

			}

		else

			{

			cf.iLocalId = iConfig6.iLocalId;

			cf.iRemoteId = iConfig6.iRemoteId;

			cf.iNameSer1 = iConfig6.iNameSer1;

			cf.iNameSer2 = iConfig6.iNameSer2;

			}

		}

		break;

	default:

		Panic(EBadConfigControlFamily);

		break;

		}

	return KErrNone;

	}

void CIPShimIfBase6::GetConfigFirstTime()

/**

Retrieve the IP4/IP6 configuration information from the lower binder, if

we haven't already done so.

*/

	{

	if (iConfig6.iFamily == KAFUnspec)

		{

		// retrieve the configuration information into the iConfig4/6 union (we are

		// just specifying the address of the first data type in the union, but

		// it equally specifies iConfig6).

		TBinderConfig& config = iConfig6;

		if(iProtoBinders[0]->iLowerControl->GetConfig(config) != KErrNone)

			Panic(EBinderConfigNotSupported);

		iConfig6.iFamily = config.iFamily;

		ASSERT(iConfig6.iFamily == KAfInet6);

		}		

	}