/*

* Copyright (c) 2007 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:  Send request data packets to the connected wlan network.

*

*/

#include <e32std.h>

#include <e32svr.h>

#include "cipapputilsaddressresolver.h"

#include "dhcpconstants.h"

#include "dhcpdatasender.h"

#include "dhcppsylogging.h"

_LIT8 (KDhcpWlanMacAddressFrmt, "" );

const TInt KDhcpWlanMacAddressLength = 0x20;

// ======== MEMBER FUNCTIONS ========

// ---------------------------------------------------------------------------

// NewL

// ---------------------------------------------------------------------------

//

CDhcpDataRequestor* CDhcpDataRequestor::NewL(RSocket& aSocket)

    {

    CDhcpDataRequestor* self = new( ELeave ) CDhcpDataRequestor(aSocket);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

// ---------------------------------------------------------------------------

// Destructor

// ---------------------------------------------------------------------------

//

CDhcpDataRequestor::~CDhcpDataRequestor()

    {

    TRACESTRING( "CDhcpDataRequestor::~CDhcpDataRequestor" );

    Cancel();

    delete iIpAppUtilsResolver;

    }

// ---------------------------------------------------------------------------

// Constructor

// ---------------------------------------------------------------------------

//

CDhcpDataRequestor::CDhcpDataRequestor(RSocket& aSocket):

    CActive ( EPriorityStandard ), iSocket ( aSocket )

    {

    CActiveScheduler::Add( this );

    }

// ---------------------------------------------------------------------------

// For sending a DHCP message. If a DHCP server address has been found then we

// use that, but if it has not been found then we try broadcasting.

// ---------------------------------------------------------------------------

//

void CDhcpDataRequestor::SendDHCPMessageL(TInetAddr aDhcpSrvAddr, TUint32 aIapProfileId,

        TRequestStatus& aStatus )

    {

    TRACESTRING2( "CDhcpDataRequestor::SendDHCPMessageL, dhcp server address: %u",

            aDhcpSrvAddr.Address() );

    // Make location request message.

    iIapProfileId = aIapProfileId;

    TBuf8<KDhcpWlanMacAddressLength> wlanMacAddress (KNullDesC8);

    User::LeaveIfError(

        iIpAppUtilsResolver->GetWlanMACAddress(wlanMacAddress,

            KDhcpWlanMacAddressFrmt)

        );

    User::LeaveIfError (

        iIpAppUtilsResolver->GetLocalIpAddressFromIap(iInetLclIpAddress, aIapProfileId)

        );

    TRACESTRING2( "CDhcpDataRequestor::SendDHCPMessage, local Ipaddres address: %u",

            iInetLclIpAddress.Address() );

    iLocationRequestMsg.MakeDhcpInformMsg (iInetLclIpAddress.Address(),

            wlanMacAddress );

    aStatus = KRequestPending;

    iClientStatus = &aStatus;

    TInetAddr inetAddr (aDhcpSrvAddr) ;

    inetAddr.SetPort( KDhcpDefaultSrvPort );

    iSocket.SendTo( iLocationRequestMsg, inetAddr, 0, iStatus, iLen );

    SetActive();

    }

// ---------------------------------------------------------------------------

// TransActionIdToFollow

// ---------------------------------------------------------------------------

//

TUint32 CDhcpDataRequestor::TransActionIdToFollow ()

    {

    return iLocationRequestMsg.TransactionId();

    }

// ---------------------------------------------------------------------------

// ContructL

// ---------------------------------------------------------------------------

//

void CDhcpDataRequestor::ConstructL ()

    {

    iIpAppUtilsResolver = CIPAppUtilsAddressResolver::NewL ();

    }

// ---------------------------------------------------------------------------

// RunL

// ---------------------------------------------------------------------------

//

void CDhcpDataRequestor::RunL ()

    {

    TRACESTRING2( "CDhcpDataRequestor::RunL %d", iStatus.Int());

    TRequestStatus *status = iClientStatus;

    User::RequestComplete (status, iStatus.Int());

    }

// ---------------------------------------------------------------------------

// CDhcpDataRequestor::DoCancel

// ---------------------------------------------------------------------------

//

void CDhcpDataRequestor::DoCancel ()

    {

    TRACESTRING( "CDhcpDataRequestor::DoCancel" );

    iSocket.CancelSend();

    }