// 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:

// key_sap.cpp - IPv6/IPv4 IPSEC PFKEY service access point

// The PFKEY Service Access Point (SAP) -- the socket.

//

/**

 @file key_sap.cpp

*/

#include "ipsec.h"

#include "pfkey.h"

#include "pfkeymsg.h"

//

CProviderKey::CProviderKey(CProtocolKey& aProtocol) : iProtocol(aProtocol)

	/**

	* Constructor.

	*

	* @param aProtocol The PFKEY protocol object reference

	*/

	{

	}

void CProviderKey::Start()

	{

	iListening = 1;

	}

TUint CProviderKey::Write(const TDesC8 &aDesc, TUint /*aOptions*/, TSockAddr* /*aAddr =NULL*/)

	/**

	* Receive PF_KEY v2 messages from the Key Manager application.

	*

	* The key manager controls Security Associations in SAD through the PFKEY socket.

	* Each (datagram) write is a complete PFKEYv2 message. Calls CProtocolKey::Exec()

	* to process the message.

	*

	* @param aDesc The PFKEYv2 message from the application.

	* @param aOptions Not used.

	* @param aAddr Not used.

	* @return Non-zero (datagram accepted).

	*/

	{

	const TInt result = iProtocol.Exec(aDesc, this);

	if (result != KErrNone)

		iSocket->Error(result, MSocketNotify::EErrorSend);

	return 1;	// Datagram sockets return 1 or 0

	}

TInt CProviderKey::SetOption(TUint aLevel, TUint aName, const TDesC8& aOption)

	/**

	* PFKEY SetOpt implementation.

	*

	* No options on SAP level, just pass the call to

	* CProtocolKey::SetOption().

	*

	* @param aLevel The option level

	* @param aName The option name

	* @param aOption The option parameter

	* @return Result code.

	*/

	{

	// Note: capability check not needed here, because only

	// applications with sufficient capability can open this socket.

	return iProtocol.SetOption(aLevel, aName, aOption);

	}

TInt CProviderKey::GetOption(TUint aLevel, TUint aName, TDes8& aOption) const

	/**

	* PFKEY GetOpt implementation.

	*

	* No options on SAP level, just pass the call to

	* CProtocolKey::GetOption().

	*

	* @param aLevel The option level

	* @param aName The option name

	* @retval aOption The option parameter

	* @return Result code.

	*/

	{

	// Note: capability check not needed here, because only

	// applications with sufficient capability can open this socket.

	return iProtocol.GetOption(aLevel, aName, aOption);

	}

void CProviderKey::Deliver(const TPfkeyMessage &aMsg)

	/**

	* Queue PFKEY v2 messages for delivery to application.

	*

	* Convert internal format of PFKEY message into byte stream and

	* append it into the socket receive queue (it has already been

	* decided elsewhere that this socket wants this information)

	*

	* @param aMsg The PFKEY message.

	*/

	{

	if (iListening)

		{

		RMBufRecvPacket packet;

		// Allocate info and fill with dummy values, none of which

		// make any sense really, nobody is using them anyways for

		// these packets...

		TRAP_IGNORE(

			RMBufRecvInfo *info = packet.NewInfoL();

			packet.SetInfo(info);

			info->iProtocol = KProtocolKey;

			info->iLength = 0;

			info->iInterfaceIndex = 0;

			aMsg.ByteStreamL(packet);

			packet.Pack();

			CProviderIpsecBase::Deliver(packet);

			);

		// Just release any partially constructed packet,

		// if not properly delivered.

		packet.Free();

		}

	}