// 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:

// IPProto SubConnection Provider states/transitions

// 

//

/**

 @file

 @internalComponent

*/

#include <comms-infras/netcfgextprov.h>

#include <etelqos.h>

#include <networking/qos3gpp_subconparams.h>

#include <cs_subconparams.h>

#include <cs_subconevents.h>

#include <comms-infras/corescpractivities.h>

#include <comms-infras/linkmessages.h>		// for TLinkMessage

#include "ipprotodeftscpr.h"

#include "ipprotodeftscprstates.h"

#include "ItfInfoConfigExt.h"

#include <comms-infras/es_config.h>

#include <es_panic.h>

#include <comms-infras/ss_datamonitoringprovider.h>

#include <comms-infras/ss_log.h>

using namespace Messages;

using namespace MeshMachine;

using namespace ESock;

using namespace NetStateMachine;

using namespace IPProtoDeftSCpr;

DEFINE_SMELEMENT(TStoreProvision, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TStoreProvision::DoL()

	{

	PRStates::TStoreProvision storeProvision(iContext);

	storeProvision.DoL();			// set up iContext.Node().iProvisionConfig

    // Allocate and add the data monitoring shared memory pointers the provisioning info

	CIPProtoDeftSubConnectionProvider& node = iContext.Node();

	TDataMonitoringSubConnProvisioningInfo* subConnProvisioningInfo = const_cast<TDataMonitoringSubConnProvisioningInfo*>(static_cast<const TDataMonitoringSubConnProvisioningInfo*>(node.AccessPointConfig().FindExtension(STypeId::CreateSTypeId(TDataMonitoringSubConnProvisioningInfo::iUid, TDataMonitoringSubConnProvisioningInfo::iId))));

	ASSERT(subConnProvisioningInfo);

#ifdef _DEBUG

	_LIT8(KNote, "Note");

	if (subConnProvisioningInfo->iDataVolumesPtr || subConnProvisioningInfo->iThresholdsPtr)

		{

		__CFLOG_VAR((KIPProtoDeftScprTag, KNote, _L8("IPProtoDeftSCpr %x:\tNOTE: data monitoring subconnection structure re-assigned"), &node));

		}

#endif

	// In the situation where there is an existing IPProtoSCPr in the ELeaving state (which has been

	// stopped and has had a TDestroy sent to it) we can safely re-assign the pointers in the (shared)

	// data monitoring subconnection structure from pointing to that IPProtoSCPr instance to this one.

	// This is because the IP Shim Flow corresponding to that IPProtoSCPr should not be performing any

	// data transfer, after having unbound from its lower flow and closed its binders in response to a

	// TDataClientStop.  The structure itself is allocated in the CPR.

	::new (subConnProvisioningInfo) TDataMonitoringSubConnProvisioningInfo(&node.iDataVolumes, &node.iThresholds);

	}

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

// Data monitoring support

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

DEFINE_SMELEMENT(TAwaitingDataMonitoringNotification, NetStateMachine::MState, IPProtoDeftSCpr::TContext)

TBool IPProtoDeftSCpr::TAwaitingDataMonitoringNotification::Accept()

	{

	return iContext.iMessage.IsMessage<TCFDataMonitoringNotification::TDataMonitoringNotification>();

	}

DEFINE_SMELEMENT(TProcessDataMonitoringNotification, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TProcessDataMonitoringNotification::DoL()

	{

	TCFDataMonitoringNotification::TDataMonitoringNotification& msg =

		message_cast<TCFDataMonitoringNotification::TDataMonitoringNotification>(iContext.iMessage);

	iContext.Node().DataNotificationL(msg);

	}

// NetCfgExtension Support

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

DEFINE_SMELEMENT(TAwaitingStateChangeOrCancel, NetStateMachine::MState, IPProtoDeftSCpr::TContext)

TBool IPProtoDeftSCpr::TAwaitingStateChangeOrCancel::Accept()

	{

	return (iContext.iMessage.IsMessage<TCFMessage::TStateChange>() || iContext.iMessage.IsMessage<TEBase::TCancel>());

	}

DEFINE_SMELEMENT(TAwaitingStateChange, NetStateMachine::MState, IPProtoDeftSCpr::TContext)

TBool IPProtoDeftSCpr::TAwaitingStateChange::Accept()

    {

    return (iContext.iMessage.IsMessage<TCFMessage::TStateChange>());

    }

DEFINE_SMELEMENT(TAwaitingConfigureNetwork, NetStateMachine::MState, IPProtoDeftSCpr::TContext)

TBool IPProtoDeftSCpr::TAwaitingConfigureNetwork::Accept()

	{

	return iContext.iMessage.IsMessage<TCFIPProtoMessage::TConfigureNetwork>();

	}

DEFINE_SMELEMENT(TAwaitingNetworkConfiguredOrError, NetStateMachine::MState, IPProtoDeftSCpr::TContext)

TBool IPProtoDeftSCpr::TAwaitingNetworkConfiguredOrError::Accept()

	{

	return (iContext.iMessage.IsMessage<TCFIPProtoMessage::TNetworkConfigured>()

			||  iContext.iMessage.IsMessage<TEBase::TError>());

	}

DEFINE_SMELEMENT(TNoTagOrSwallowMessage, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TNoTagOrSwallowMessage::TransitionTag()

	{

	const RMetaExtensionContainerC& mec = iContext.Node().AccessPointConfig();

	const CNetCfgExtProvision* provision = static_cast<const CNetCfgExtProvision*>(mec.FindExtension(

	        STypeId::CreateSTypeId(CNetCfgExtProvision::EUid, CNetCfgExtProvision::ETypeId)));

	TCFMessage::TStateChange& msg = message_cast<TCFMessage::TStateChange>(iContext.iMessage);

	if (provision && KLinkLayerOpen == msg.iStateChange.iStage)

		{

		return KSwallowMessage;

		}

	else

		{

		return KNoTag;

		}

	}

DEFINE_SMELEMENT(TStopNetCfgExtOrNoTag, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TStopNetCfgExtOrNoTag::TransitionTag()

	{

	if (iContext.Node().iControl)

		return KStopNetCfgExt;

	return KNoTag;

	}

DEFINE_SMELEMENT(TNetworkConfiguredOrErrorTagOrCancelTagOrNoTag, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TNetworkConfiguredOrErrorTagOrCancelTagOrNoTag::TransitionTag()

	{

	if (iContext.iMessage.IsMessage<TEBase::TCancel>())

		{

		iContext.iNodeActivity->SetError(KErrCancel);

		return KCancelTag;

		}

	TCFMessage::TStateChange& msg = message_cast<TCFMessage::TStateChange>(iContext.iMessage);

	if (msg.iStateChange.iError != KErrNone)

		{

		iContext.iNodeActivity->SetError(msg.iStateChange.iError);

		return KErrorTag;

		}

	if (msg.iStateChange.iStage == KLinkLayerOpen)

		{

		return KNetworkConfigured;

		}

	return KNoTag;

	}

DEFINE_SMELEMENT(TNetworkConfiguredOrErrorTagOrCancelTagOrNoTagBackward, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TNetworkConfiguredOrErrorTagOrCancelTagOrNoTagBackward::TransitionTag()

	{

	TInt tag = IPProtoDeftSCpr::TNetworkConfiguredOrErrorTagOrCancelTagOrNoTag::TransitionTag();

	if (tag == KNoTag)

		return tag | NetStateMachine::EBackward;

	return tag;

	}

DEFINE_SMELEMENT(TErrorTagOrNoTag, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TErrorTagOrNoTag::TransitionTag()

	{

	TEBase::TError *error = message_cast<TEBase::TError>(&iContext.iMessage);

	if (error)

		{

		iContext.iNodeActivity->SetError(error->iValue);

		return KErrorTag;

		}

	TCFIPProtoMessage::TNetworkConfigured* msg = message_cast<TCFIPProtoMessage::TNetworkConfigured>(&iContext.iMessage);

	if (msg->iValue != KErrNone)

		{

		iContext.iNodeActivity->SetError(msg->iValue);

		return KErrorTag;

		}

	return KNoTag;

	}

DEFINE_SMELEMENT(TNoTagOrConfigureNetwork, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TNoTagOrConfigureNetwork::TransitionTag()

	{

	const RMetaExtensionContainerC& mec = iContext.Node().AccessPointConfig();

	const CNetCfgExtProvision* provision = static_cast<const CNetCfgExtProvision*>(mec.FindExtension(

	        STypeId::CreateSTypeId(CNetCfgExtProvision::EUid, CNetCfgExtProvision::ETypeId)));

	if (provision)

		{

		return KConfigureNetwork;

		}

	else

		{

		return KNoTag;

		}

	}

DEFINE_SMELEMENT(TNoTagOrProviderStoppedOrDaemonReleased, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TNoTagOrProviderStoppedOrDaemonReleased::TransitionTag()

    {

    iContext.iNodeActivity->SetError(message_cast<TCFDataClient::TStop>(iContext.iMessage).iValue);

    if (iContext.Node().GetFirstClient<TDefaultClientMatchPolicy>(TClientType(TCFClientType::EData, TCFClientType::EStarted)) != NULL)

        {

        // At least one data client started 

        if(iContext.Node().iControl)

            {

            return MeshMachine::KNoTag;

            }

        else

            {

            return KDaemonReleased;

            }

        }

    return CoreNetStates::KProviderStopped;

    }

DEFINE_SMELEMENT(TDaemonReleasedStateChangedOrNoTagBackward, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TDaemonReleasedStateChangedOrNoTagBackward::TransitionTag()

    {

    TInt tag = IPProtoDeftSCpr::TDaemonReleasedStateChangedOrNoTag::TransitionTag();

    if (tag == KNoTag)

        return tag | NetStateMachine::EBackward;

    return tag;

    }

DEFINE_SMELEMENT(TDaemonReleasedStateChangedOrNoTag, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TDaemonReleasedStateChangedOrNoTag::TransitionTag()

    {

    TCFMessage::TStateChange& msg = message_cast<TCFMessage::TStateChange>(iContext.iMessage);

    if (msg.iStateChange.iStage == KConfigDaemonFinishedDeregistrationStop)

        {

        return KDaemonReleasedStateChanged;

        }

    return KNoTag;

    }

DEFINE_SMELEMENT(TConfigureNetwork, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TConfigureNetwork::DoL()

	{

	iContext.iNodeActivity->PostRequestTo(iContext.NodeId(), TCFIPProtoMessage::TConfigureNetwork().CRef());

	}

DEFINE_SMELEMENT(TSendNetworkConfigured, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TSendNetworkConfigured::DoL()

	{

	TCFMessage::TStateChange& msg = message_cast<TCFMessage::TStateChange>(iContext.iMessage);

      if (msg.iStateChange.iStage == KLinkLayerOpen)

          {

          // After network get configured if the last state change massage is KLinklayerOpen fwd the 

          // massage to control provider.

          iContext.Node().PostToClients<TDefaultClientMatchPolicy>(TNodeCtxId(iContext.ActivityId(), iContext.NodeId()), iContext.iMessage, TClientType(TCFClientType::ECtrlProvider));

          }

	TCFIPProtoMessage::TNetworkConfigured resp(iContext.iNodeActivity->Error());

	iContext.iNodeActivity->SetError(KErrNone);

	iContext.iNodeActivity->PostToOriginators(resp);

	}

DEFINE_SMELEMENT(TStartNetCfgExt, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TStartNetCfgExt::DoL()

	{

	ASSERT(!iContext.Node().iNotify);

	ASSERT(!iContext.Node().iControl);

	iContext.Node().iNotify = CNetCfgExtNotify::NewL(&iContext.Node());

	iContext.Node().iControl = CNifConfigurationControl::NewL(*iContext.Node().iNotify);

	iContext.Node().iControl->ConfigureNetworkL();

	}

DEFINE_SMELEMENT(TStopNetCfgExt, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TStopNetCfgExt::DoL()

	{

	if(!iContext.Node().iControl) return;

	iContext.Node().iControl->Deregister(EConfigDaemonDeregisterCauseStop);

	}

DEFINE_SMELEMENT(TStopNetCfgExtDelete, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TStopNetCfgExtDelete::DoL()

    {

    if(!iContext.Node().iControl)

        {

        return;

        }

    iContext.Node().iControl->AsyncDelete();

    iContext.Node().iControl = NULL;

    delete iContext.Node().iNotify;

    iContext.Node().iNotify = NULL;

    }

DEFINE_SMELEMENT(TResetSentTo, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TResetSentTo::DoL()

	{

	iContext.iNodeActivity->ClearPostedTo();

	}

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

// Ioctl Support

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

DEFINE_SMELEMENT(TAwaitingIoctlProcessed, NetStateMachine::MState, IPProtoDeftSCpr::TContext)

TBool IPProtoDeftSCpr::TAwaitingIoctlProcessed::Accept()

	{

	return iContext.iMessage.IsMessage<TCFLegacyMessage::TLegacyRMessage2Processed>();

	}

void IPProtoDeftSCpr::TAwaitingIoctlProcessed::Cancel()

	{

	CIPProtoDeftSubConnectionProvider* node = static_cast<CIPProtoDeftSubConnectionProvider*>(&iContext.Node());

	if (node->iControl)

		{

		node->iControl->CancelControl();

		}

	iContext.Activity()->SetError(KErrCancel);

	}

DEFINE_SMELEMENT(TNoTagOrTryNetCfgExt, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TNoTagOrTryNetCfgExt::TransitionTag()

	{

	TCFLegacyMessage::TLegacyRMessage2Processed& msg = message_cast<TCFLegacyMessage::TLegacyRMessage2Processed>(iContext.iMessage);

	if ((msg.iResponse.iType == ESock::TLegacyRMessage2Response::ENormal && msg.iResponse.iCode == KErrNone)

		|| msg.iResponse.iType == ESock::TLegacyRMessage2Response::EPanic)

		{

		return KNoTag;

		}

	else

		{

		return KTryNetCfgExt;

		}

	}

DEFINE_SMELEMENT(TTryServiceProviderOrTryNetCfgExt, NetStateMachine::MStateFork, IPProtoDeftSCpr::TContext)

TInt IPProtoDeftSCpr::TTryServiceProviderOrTryNetCfgExt::TransitionTag()

	{

	MeshMachine::CNodeParallelMessageStoreActivityBase* act = static_cast<MeshMachine::CNodeParallelMessageStoreActivityBase*>(iContext.Activity());

	ASSERT(act->Message().IsTypeOf(Meta::STypeId::CreateSTypeId(TCFSigLegacyRMessage2Ext::EUid, TCFSigLegacyRMessage2Ext::ETypeId)));

	if ((static_cast<TCFSigLegacyRMessage2Ext&>(act->Message()).iMessage.Int0() == KCOLConfiguration

			&& static_cast<TCFSigLegacyRMessage2Ext&>(act->Message()).iMessage.Int1() == KConnGetSipServerAddr))

		{

		return KTryServiceProvider;

		}

	else

		{

		return KTryNetCfgExt;

		}

	}

DEFINE_SMELEMENT(TForwardToServiceProvider, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TForwardToServiceProvider::DoL()

	{

	ASSERT(iContext.iMessage.IsTypeOf(Meta::STypeId::CreateSTypeId(TCFSigLegacyRMessage2Ext::EUid, TCFSigLegacyRMessage2Ext::ETypeId)));

	MeshMachine::CNodeParallelMessageStoreActivityBase* act = static_cast<MeshMachine::CNodeParallelMessageStoreActivityBase*>(iContext.Activity());

	TCFSigLegacyRMessage2Ext::RReadOnlyRMessage& ioctl(static_cast<TCFSigLegacyRMessage2Ext&>(act->Message()).iMessage);

	RLegacyResponseMsg r(iContext, static_cast<TCFSigLegacyRMessage2Ext&>(act->Message()).iMessage, static_cast<TCFSigLegacyRMessage2Ext&>(act->Message()).iMessage.Int0());

	// currently only supporting configuration ioctls

	if (ioctl.Int0() == KCOLConfiguration && ioctl.Int1() == KConnGetSipServerAddr)

		{

		TSipServerAddrBuf sipAddr;

		if (ioctl.GetDesLengthL(2) != sipAddr.Length())

			{

			r.Panic(KESockClientPanic, EBadDescriptor);

			act->ClearPostedTo();

			return; // the sip address handlers will complete the message

			}

		}

	RNodeInterface* dc = iContext.Node().GetFirstClient<TDefaultClientMatchPolicy>(TClientType(TCFClientType::EServProvider));

	iContext.Activity()->PostRequestTo(*dc, iContext.iMessage);

	}

DEFINE_SMELEMENT(THandoffToNetCfgExt, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::THandoffToNetCfgExt::DoL()

	{

	ASSERT(iContext.Activity());

	MeshMachine::CNodeParallelMessageStoreActivityBase* act = static_cast<MeshMachine::CNodeParallelMessageStoreActivityBase*>(iContext.Activity());

	TCFSigLegacyRMessage2Ext::RReadOnlyRMessage& ioctl(static_cast<TCFSigLegacyRMessage2Ext&>(act->Message()).iMessage);

	RLegacyResponseMsg r(iContext, static_cast<TCFSigLegacyRMessage2Ext&>(act->Message()).iMessage, static_cast<TCFSigLegacyRMessage2Ext&>(act->Message()).iMessage.Int0());

	if (ioctl.Int0() == KCOLConfiguration && ioctl.Int1() == KConnGetSipServerAddr)

		{

		TCFSigLegacyRMessage2Ext::RReadOnlyRMessage& ioctl(static_cast<TCFSigLegacyRMessage2Ext&>(act->Message()).iMessage);

		TSipServerAddrBuf sipAddr;

		if (ioctl.GetDesLengthL(2) != sipAddr.Length())

			{

			r.Panic(KESockClientPanic, EBadDescriptor);

			act->ClearPostedTo();

			return; // the sip address handlers will complete the message

			}

		}

	if ((ioctl.Int0() == KCOLConfiguration && ioctl.Int1() == KConnGetSipServerAddr))

		{

		TSipServerAddrBuf sipBuf;

		ioctl.ReadL( 2, sipBuf );

		if( sipBuf().index != 0 )

			{

			r.Complete(KErrNotFound);

			act->ClearPostedTo();

			return;

			}

		}

	// IPProto returns KErrNotSupported if DHCP is not configured for the IAP

	// so we want to make sure DHCP fallback is only ever tried once for index

	// zero.  Otherwise, the last address index that the caller tries may return

	// KErrNotSupported instead of the expected KErrNotFound.

	if (iContext.Node().iControl)

		{

		iContext.Node().iControl->SendIoctlMessageL(r);

		act->ClearPostedTo();

		}

	else

		{

		const RMetaExtensionContainerC& mec = iContext.Node().AccessPointConfig();

		const CNetCfgExtProvision* provision = static_cast<const CNetCfgExtProvision*>(mec.FindExtension(

				STypeId::CreateSTypeId(CNetCfgExtProvision::EUid, CNetCfgExtProvision::ETypeId)));

		if (provision)

			{

			r.Complete(KErrNotReady);

			act->ClearPostedTo();

			}

		else

			{

			r.Complete(KErrNotSupported);

			act->ClearPostedTo();

			}

		}

	}

//

// support for AgentEventNotification

//

DEFINE_SMELEMENT(TAwaitingAgentEventNotification, NetStateMachine::MState, IPProtoDeftSCpr::TContext)

TBool IPProtoDeftSCpr::TAwaitingAgentEventNotification::Accept()

	{

	return iContext.iMessage.IsMessage<TLinkMessage::TAgentEventNotification>();

	}

DEFINE_SMELEMENT(TProcessAgentEvent, NetStateMachine::MStateTransition, IPProtoDeftSCpr::TContext)

void IPProtoDeftSCpr::TProcessAgentEvent::DoL()

	{

	if (iContext.Node().iControl)

		{

		// AgentEventNotification originates from the AgentSCPr as a result of an AgentEvent()

		// call from the Agent.  Although the message is generic, it was primarily created to pass the

		// event ECurrentNetworkChangeEvent from the Agent towards the NetCfgExt for CDMA2000 support.

		// The "aEventData" and "aSource" fields of the EventNotification() call are not used for this

		// event, and hence are passed as null values.

		TLinkMessage::TAgentEventNotification& msg = message_cast<TLinkMessage::TAgentEventNotification>(iContext.iMessage);

		iContext.Node().iControl->EventNotification(TNetworkAdaptorEventType(msg.iValue1), msg.iValue2, KNullDesC8, NULL);

		}

	}