// Copyright (c) 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:

// dnsserverconfig.h

// Source file for the DNS Proxy client side implementation.

//

/**

 @file

 @internalComponent

*/

#include "dnsproxyclientconfigparams.h"

#include "dnsproxyclient.h"

// Runs client-side and starts the separate server process

static TInt StartTheServer()

    {

    _LIT(KServerExecutableName,"DNSProxy.exe");

    RProcess server;

    TInt err = server.Create(KServerExecutableName, KNullDesC);

    if (err != KErrNone)

        return err;

    TRequestStatus stat;

    server.Rendezvous(stat);

    if (stat!=KRequestPending)

    	//abort startup

        server.Kill(0);

    else

    	//logon OK - start the server

        server.Resume();

   // wait for start or death

    User::WaitForRequest(stat);

    err = server.ExitType();

    if (EExitPanic == err)

        err = KErrGeneral;

    else

        err = stat.Int();

    // This is no longer needed

    server.Close();

    return err;

    }

EXPORT_C TInt RDNSClient::Connect()

/**

 * This method is used to connect to the server

 * @return TInt

 *

 * @internalTechnology

 **/

    {

    TInt retry=2;

    for (;;)

        {

        // Uses system-pool message slots

        TInt r=CreateSession(KServerName,TVersion(1,0,0));

        if ( (KErrNotFound!=r) && (KErrServerTerminated!=r) )

            return (r);

        if (--retry==0)

            return (r);

        r=StartTheServer();

        if ( (KErrNone!=r) && (KErrAlreadyExists!=r) )

            return (r);

        }

    }

EXPORT_C void RDNSClient::ConfigureDnsProxyServer(const TDes8& aInfo, TRequestStatus& aStatus)

/**

 * Client side message to configure DNS Proxy Server.

 * @param aInfo of type TDes8& which represents connection info

 *

 * @internalTechnology

 **/

    {

    SendReceive(EProxyConfigure, TIpcArgs(&aInfo),aStatus);

    }

/**

 * Client side message to Add dns db

 * @param aAddress of type TDes& which represents IP address of the connected hosts.

 * @param aName of type TDes& which represents host name of the connected hosts.

 *

 * @internalTechnology

 **/

EXPORT_C void RDNSClient::AddDbEntry(const TDes8& aHostName, const TDes& aIpAddress, TRequestStatus& aStatus)

    {

    SendReceive(EProxyAddDb,TIpcArgs(&aIpAddress,&aHostName),aStatus);

    }

/**

 * Client side message to Remove dns db

 * @param aAddress of type TDes& which represents IP address of the connected hosts.

 * @param aName of type TDes& which represents host name of the connected hosts.

 *

 * @internalTechnology

 **/

EXPORT_C void RDNSClient::RemoveDbEntry(const TDes& aIpAddress, TRequestStatus& aStatus)

    {

    SendReceive(EProxyRemoveDb,TIpcArgs(&aIpAddress),aStatus);

    }

EXPORT_C void RDNSClient::UpdateDomainName(const TDes8& aName, TRequestStatus& aStatus)

/**

 * Client side message to set domain name in the Dns proxy server

 * @param aAddress of type TDes& which represents IP address of the connected hosts.

 * @param aName of type TDes& which represents host name of the connected hosts.

 *

 * @internalTechnology

 **/

    {

	SendReceive(EProxyUpdateDomainName,TIpcArgs(&aName),aStatus);

    }

EXPORT_C void RDNSClient::ConfigureUplinkInfo(const TDes8& aName, TRequestStatus& aStatus)

/**

 * Client side message to set the Uplink information

 * @param aInfo of type TDes8& which represents connection info 

 *

 * @internalTechnology

 **/

    {

    SendReceive(EProxyConfigureUplink,TIpcArgs(&aName),aStatus);

    }