// 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:

// IP SubConnection Provider implementation

// 

//

/**

 @file

 @internalComponent

*/

#include <comms-infras/corescpractivities.h>

#include <comms-infras/ss_corepractivities.h>

#include "ipdeftscpr.h"

#include "IPMessages.h"

#include <comms-infras/ss_log.h>

#include "IPCpr.h"

#include <comms-infras/ss_msgintercept.h>

#ifdef SYMBIAN_TRACE_ENABLE

	#define KIPSCprTag KESockSubConnectionTag

	//_LIT8(KIPSCprSubTag, "ipqosdeftscpr");

#endif // SYMBIAN_TRACE_ENABLE

using namespace Messages;

using namespace MeshMachine;

using namespace ESock;

using namespace IPDeftBaseSCprActivities;

using namespace PRActivities;

using namespace CoreNetStates;

//We reserve space for two preallocated activities that may start concurrently on the default SCPR

//node: destroy and data client stop.

static const TUint KDefaultMaxPreallocatedActivityCount = 2;

static const TUint KMaxPreallocatedActivitySize = sizeof(MeshMachine::CNodeRetryParallelActivity) + sizeof(MeshMachine::APreallocatedOriginators<4>);

static const TUint KIPDefaultSCPRPreallocatedActivityBufferSize = KDefaultMaxPreallocatedActivityCount * KMaxPreallocatedActivitySize;

//-=========================================================

//

// States

//

//-=========================================================

namespace IPDeftSCprStates

{

DEFINE_SMELEMENT(TPolicyChecking, NetStateMachine::MStateTransition, IPBaseSCprStates::TContext)

void TPolicyChecking::DoL()

	{

	IPBaseSCprStates::TStoreAddressUpdate storeAddressUpdate(iContext);

	storeAddressUpdate.DoL();

	TCFIPMessage::TDataClientRouted& addressUpdateMsg = message_cast<TCFIPMessage::TDataClientRouted>(iContext.iMessage);

	// check for src and dst address presence

	if( addressUpdateMsg.iAddrUpdate.iSrcSockAddr.Family() != KAFUnspec &&

		addressUpdateMsg.iAddrUpdate.iDestSockAddr.Family() != KAFUnspec )

		{

		RNodeInterface* ctrlProvider = iContext.Node().ControlProvider();

		User::LeaveIfError(ctrlProvider? KErrNone : KErrCorrupt);

	    RIPDataClientNodeInterface* client = static_cast<RIPDataClientNodeInterface*>(iContext.iPeer);

		ctrlProvider->PostMessage(

			TNodeCtxId(iContext.ActivityId(), iContext.NodeId()),

			TCFIPMessage::TPolicyParams(

				addressUpdateMsg.iAddrUpdate,

				iContext.NodeId(),

				address_cast<TNodeId>(iContext.iSender),

				client->iAppSid

				).CRef()

			);

		}

	}

}//namespace 

//-=========================================================

//

// Activities

//

//-=========================================================

namespace IPDeftSCprAddressUpdate

{

DECLARE_DEFINE_NODEACTIVITY(ECFActivityAddressUpdate, IPDeftSCprAddressUpdate, TCFIPMessage::TDataClientRouted)

	NODEACTIVITY_ENTRY(KNoTag, IPDeftSCprStates::TPolicyChecking, IPBaseSCprStates::TAwaitingAddressUpdate, MeshMachine::TNoTag)

NODEACTIVITY_END()

}

DEFINE_SMELEMENT(CCommsIPBinderActivity::TFetchClientUids, NetStateMachine::MStateTransition, TContext)

void CCommsIPBinderActivity::TFetchClientUids::DoL()

	{

	MPlatsecApiExt* platsec(NULL);

   	TRAP_IGNORE(platsec = reinterpret_cast<MPlatsecApiExt*>(address_cast<TNodeId>(iContext.iSender).Node().FetchNodeInterfaceL(MPlatsecApiExt::KInterfaceId)));

   	if (platsec)

   		{

		TSecureId secureId = 0;

   		if(platsec->SecureId(secureId) != KErrNone)

   			{

   			return;

   			}

		CCommsIPBinderActivity* intf = reinterpret_cast<CCommsIPBinderActivity*>(iContext.iNodeActivity->FetchExtInterface(CCommsIPBinderActivity::KInterfaceId));

		if(intf)

			{

			intf->SetUid(TUid::Uid(secureId.iId));

			}

   		}

	}

DEFINE_SMELEMENT(CCommsIPBinderActivity::TUpdateClientUids, NetStateMachine::MStateTransition, TContext)

void CCommsIPBinderActivity::TUpdateClientUids::DoL()

	{

	/* Data client joined is recieved from the factory, which isn't the peer. Therefore we must look up

	 * the client using it's comms id which we can get from the dcjoined message

	 */

    RIPDataClientNodeInterface* client = static_cast<RIPDataClientNodeInterface*>(iContext.iPeer);

    if (!client)

        {

        return;

        }

	CCommsIPBinderActivity* intf = reinterpret_cast<CCommsIPBinderActivity*>(iContext.iNodeActivity->FetchExtInterface(CCommsIPBinderActivity::KInterfaceId));

	if(intf)

		{

	    client->iAppSid = intf->GetUid();

		}

	}

namespace IPDeftSCprBinderRequestActivity

{

DECLARE_DEFINE_CUSTOM_NODEACTIVITY(ECFActivityBinderRequest, IPDeftSCprBinderRequest, TCFServiceProvider::TCommsBinderRequest, CCommsIPBinderActivity::NewL)

	FIRST_NODEACTIVITY_ENTRY(CoreNetStates::TAwaitingBinderRequest, MeshMachine::TNoTag )

	THROUGH_NODEACTIVITY_ENTRY(KNoTag, CCommsIPBinderActivity::TFetchClientUids, IPDeftBaseSCprBinderRequestActivity::TNoTagOrUseExistingOrPermissionDenied)

	NODEACTIVITY_ENTRY(KNoTag, PRStates::TCreateDataClient, CoreNetStates::TAwaitingDataClientJoin, MeshMachine::TNoTag)

	// Below this point we need to modify the error handling approach. If we're getting a TError on TBinderResponse,

	// this means the client requesting the binder couldn't bind to it. As far as the client is concerned, this

	// activity is finished (it has flagged an error). The standard error handling will result in erroring

	// the originator. In this case we shouoldn't error the originator, instead, wrap up quietly.

	THROUGH_NODEACTIVITY_ENTRY(KNoTag, CCommsIPBinderActivity::TProcessDataClientCreationAndUpdateClientUids, MeshMachine::TTag<CoreStates::KUseExisting>)

	NODEACTIVITY_ENTRY(CoreStates::KUseExisting, CCommsBinderActivity::TSendBinderResponse, CCommsBinderActivity::TAwaitingBindToComplete, MeshMachine::TNoTagOrErrorTag)

	LAST_NODEACTIVITY_ENTRY(KNoTag, MeshMachine::TDoNothing)

	LAST_NODEACTIVITY_ENTRY(KErrorTag, MeshMachine::TClearError)

	LAST_NODEACTIVITY_ENTRY(IPDeftBaseSCprBinderRequestActivity::KPermissionDenied, MeshMachine::TRaiseAndClearActivityError)

NODEACTIVITY_END()

}

namespace IPDeftSCprActivities

{

DECLARE_DEFINE_ACTIVITY_MAP(activityMap)

	ACTIVITY_MAP_ENTRY(IPDeftSCprAddressUpdate, IPDeftSCprAddressUpdate)

	ACTIVITY_MAP_ENTRY(IPDeftSCprBinderRequestActivity, IPDeftSCprBinderRequest)

ACTIVITY_MAP_END_BASE(IPDeftBaseSCprActivities, ipdeftbasescprActivityMap)

}

//-=========================================================

//

// CIpDefaultSubConnectionProvider methods

//

//-=========================================================

CIpDefaultSubConnectionProvider::~CIpDefaultSubConnectionProvider()

    {

    LOG_NODE_DESTROY(KIPSCprTag, CIpDefaultSubConnectionProvider);

    }

CIpDefaultSubConnectionProvider::CIpDefaultSubConnectionProvider(ESock::CSubConnectionProviderFactoryBase& aFactory)

	: CIpDefaultBaseSubConnectionProvider(aFactory, IPDeftSCprActivities::activityMap::Self())

    {

    LOG_NODE_CREATE(KIPSCprTag, CIpDefaultSubConnectionProvider);

    }

CIpDefaultSubConnectionProvider* CIpDefaultSubConnectionProvider::NewL(ESock::CSubConnectionProviderFactoryBase& aFactory)

    {

    CIpDefaultSubConnectionProvider* provider = new (ELeave) CIpDefaultSubConnectionProvider(aFactory);

    CleanupStack::PushL(provider);

    provider->ConstructL(KIPDefaultSCPRPreallocatedActivityBufferSize);

    CleanupStack::Pop(provider);

    return provider;

    }

void CIpDefaultSubConnectionProvider::ReceivedL(const TRuntimeCtxId& aSender, const TNodeId& aRecipient, TSignatureBase& aMessage)

	{

	ESOCK_DEBUG_MESSAGE_INTERCEPT(aSender, aMessage, aRecipient);

   	TNodeContext<CIpDefaultSubConnectionProvider> ctx(*this, aMessage, aSender, aRecipient);

	CCoreSubConnectionProvider::ReceivedL(aSender, aRecipient, aMessage);

	User::LeaveIfError(ctx.iReturn);

	}

MeshMachine::CNodeActivityBase* CCommsIPBinderActivity::NewL(const MeshMachine::TNodeActivity& aActivitySig, MeshMachine::AMMNodeBase& aNode)

    {

	TUint c = GetNextActivityCountL(aActivitySig,aNode);

    return new(ELeave)CCommsIPBinderActivity(aActivitySig, aNode, c);

    }

CCommsIPBinderActivity::CCommsIPBinderActivity(const MeshMachine::TNodeActivity& aActivitySig, MeshMachine::AMMNodeBase& aNode, TUint aNextActivityCount)

:	CCommsBinderActivity(aActivitySig, aNode, aNextActivityCount)

	{

	iAppSid = TUid::Null();

	}