--- a/telephonyprotocols/secondarypdpcontextumtsdriver/spudman/src/mux.cpp	Mon Aug 09 17:43:08 2010 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,375 +0,0 @@
-// Copyright (c) 2004-2009 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:
-// SPUD data multiplexer
-// 
-//
-
-/**
- @file
- @internalComponent
-*/
-
-#include "mux.h"
-#include <nifmbuf.h>
-#include <in6_if.h>
-
-// Flow control constants expected by the upper protocol stack
-const TInt KStopSending		= 0;
-const TInt KContinueSending	= 1;
-
-#ifdef __FLOG_ACTIVE
-#define SPUDMUX_LOG(x) iBindMan->SpudMan()->x
-#else
-#define SPUDMUX_LOG(x)
-#endif
-
-
-//
-// CSpudMux
-//
-
-
-CSpudMux::CSpudMux(CSpudMan& aNifBase)
-	: CNifIfBase(aNifBase)
-    {
-	}
-
-CSpudMux::~CSpudMux()
-    {
-    // Notify BindMan to delete the pointer to this object
-    if (iBindMan)
-    	{
-	    iBindMan->MuxClosed();
-    	}
-	}
-
-/**
-Constructs the mux object
-
-@param aBindMan Reference to BindMan object
-*/
-void CSpudMux::Construct(CBindMan& aBindMan)
-	{
-	iBindMan = &aBindMan;
-	
-	// Create a unique interface name
-	iIfName.Format(_L("%S[0x%08x]"), &KSpudName, this);
-	}
-
-/**
-Binds SPUD to the TCP/IP stack.
-
-@param aId Pointer to network stack object (CProtocolBase*)
-@leave KErrInUse if SPUD is already bound
-*/
-void CSpudMux::BindL(TAny* aId)
-	{
-	iBindMan->SetProtocolBaseL(static_cast<CProtocolBase*>(aId));
-	}
-
-
-/**
-Fills in the info object with NIF information.
-
-@param aInfo object to hold information on return
-*/
-void CSpudMux::Info(TNifIfInfo& aInfo) const
-	{
-	// Get the binder for the first (default) lower NIF.
-	CSpudBinderRef* ref = NULL;
-	TRAPD(err, ref = iBindMan->GetAnyRefL());
-	if (err == KErrNone)
-		{
-		// Read the protocol supported value from the lower NIF
-		ref->NifBase()->Info(aInfo);
-		ASSERT((aInfo.iFlags & (KNifIfIsBase | KNifIfUsesNotify | KNifIfCreatedByLink)) == (KNifIfIsBase | KNifIfUsesNotify | KNifIfCreatedByLink));
-		}
-	else
-		{
-		aInfo.iProtocolSupported=KProtocolUnknown;
-		}
-
-	// Overwrite these values with our own
-	aInfo.iName.Copy(iIfName);
-	aInfo.iVersion = TVersion(KSpudMajorVersionNumber, KSpudMinorVersionNumber, KSpudBuildVersionNumber);
-	aInfo.iFlags = KNifIfIsBase | KNifIfUsesNotify | KNifIfCreatedByLink;
-	}
-
-/**
-Takes packets from the IP stack and demultiplexes them by sending each on to
-the appropriate lower NIF for processing. The packets are assumed to be
-ordered correctly, as appropriate for the QoS guarantees given to each.
-This function's responsibility is to pass each packet to the appropriate
-lower NIF for processing, where each lower NIF handles a single PDP context.
-
-@param aPacket MBuf chain containing packet
-@param aSource Passed unchanged to lower NIF
-@return 1 for a successful send, 0 to tell upper layer to flow off
-*/
-TInt CSpudMux::Send(RMBufChain& aPacket, TAny* aSource)
-	{
-	// GUQoS places the context ID for the outgoing packet into the Port field
-	// in the RMBufChain info header.
-	const RMBufPktInfo* info = RMBufPacket::PeekInfoInChain(aPacket);
-	TUint contextId(info->iDstAddr.Port());
-	if (contextId >= static_cast<TUint>(KMaxPdpContexts))
-		{
-		// Context ID is illegal; use 0 instead and try to continue
-		SPUDMUX_LOG(__FLOG_1(_L("CSpudMux::Send context id %d is out of range; using 0 instead"), contextId));
-		contextId = 0;
-		}
-	const TContextId id(static_cast<TContextId>(contextId));
-
-	// Get the binder for the appropriate lower NIF.
-	CSpudBinderRef* ref = NULL;
-	TRAPD(err, ref = iBindMan->GetRefL(id));
-	if (err != KErrNone)
-		{
-		// That's odd--GUQoS is sending to an invalid context.
-		// Redirect it to the first valid context instead.
-		SPUDMUX_LOG(__FLOG_1(_L("CSpudMux::Send context id %d is invalid; searching for another"), id));
-		TRAPD(err, ref = iBindMan->GetAnyRefL());
-		if (err != KErrNone)
-			{
-			// Something is really wrong here! No contexts available at all!
-			SPUDMUX_LOG(__FLOG_0(_L("Nowhere to send data! Dropping packet")));
-			return err;
-			}
-		}
-	TInt rc = ref->NifBase()->Send(aPacket, aSource);
-
-	// See if NIF is flowing off data on this context
-	if ((rc == KStopSending) && iBindMan->SpudMan()->AreQoSEventsEnabled())
-		{
-		// Send flow off indication via GUQoS instead
-		iBindMan->SpudMan()->StopSending(id);
-		rc = KContinueSending;	// Successful send indication
-		}
-	return rc;
-	}
-
-/**
-Processes notifications from agent.
-
-@param aEvent event type
-@param aInfo data associated with event
-@return error code
-*/
-TInt CSpudMux::Notification(TAgentToNifEventType aEvent, void* aInfo)
-	{
-	SPUDMUX_LOG(__FLOG_1(_L("CSpudMux::Notification received event %d"), aEvent));
-	TInt rc = KErrNotSupported;
-	switch (aEvent)
-		{
-	case EAgentToNifEventTypeModifyInitialTimer:
-	case EAgentToNifEventTypeDisableTimers:
-	case EAgentToNifEventTypeEnableTimers:
-		// Send notification to all lower NIFs
-		rc =  KErrNotReady;
-		TContextId i;
-		for (i=0; i < KMaxPdpContexts; ++i)
-			{
-			CSpudBinderRef* ref = NULL;
-			TRAP(rc, ref = iBindMan->GetRefL(i));
-			if (rc == KErrNone)
-				{
-				rc = ref->NifBase()->Notification(aEvent, aInfo);
-				}
-			}
-		break;
-
-	case EAgentToNifEventTypeDisableConnection:
-		SPUDMUX_LOG(__FLOG_0(_L("CSpudMux::Notification received EAgentToNifEventTypeDisableConnection")));
-		// TODO: How to handle this event?  Just fall through and ignore for now.
-	default:
-		break;
-		}
-
-	return rc;
-	}
-
-/**
-Returns the current state of the interface
-
-@return TIfStatus indicating the current state of the interface
-*/
-TInt CSpudMux::State()
-	{
-	// Get the binder for the first (default) lower NIF.
-	CSpudBinderRef* ref = NULL;
-	TRAPD(err, ref = iBindMan->GetAnyRefL());
-	if (err != KErrNone)
-		{
-		return EIfDown;
-		}
-	
-	// Use the state of the first lower NIF as the state of the SPUD
-	return ref->NifBase()->State();
-	}
-
-/**
-Controls the NIF
-
-@param aLevel The intended level for this control option
-@param aName The name of the control option
-@param aOption Any data associated with this control option, contained within a TPckg(Buf)
-@param aSource If provided, an identifier for the source of the control option; by default, zero
-@return KErrNone if successful; otherwise one of the standard Symbian OS error codes
-*/
-TInt CSpudMux::Control(TUint aLevel, TUint aName, TDes8& aOption, TAny* aSource)
-	{
-	if (aLevel==KSOLInterface)
-		{
-		switch (aName)
-			{
-		// From elsewhere
-		case KSoIfInfo:
-		case KSoIfInfo6:
-		case KSoIfConfig:
-		case KSoIfCompareAddr:
-		case KSoIfGetConnectionInfo:
-		case KSoIfHardwareAddr:
-			{
-			// Get the binder for the first (default) lower NIF.
-			CSpudBinderRef* ref = NULL;
-			TRAPD(err, ref = iBindMan->GetAnyRefL());
-			if (err != KErrNone)
-				{
-				return err;
-				}
-			return ref->NifBase()->Control(aLevel, aName, aOption, aSource);
-			}
-
-		default:
-			// Unknown event
-			// Assume it's for GUQoS, so let SpudMan handle it and error out the unknown ones
-			// These include:
-			//   KSoIfControllerPlugIn
-        	//   KRegisterEventHandler
-			//   KContextSetEvents
-			//   KNifSetDefaultQoS
-			//   KContextCreate
-			//   KContextDelete
-			//   KContextActivate
-			//   KContextQoSSet
-			//   KContextTFTModify
-			//   KContextModifyActive
-			return iBindMan->SpudMan()->GuqosInput(aName, aOption);
-			}
-		}
-	return KErrNotSupported;
-	}
-
-//
-// CSpudProtocol
-//
-
-
-CSpudProtocol::CSpudProtocol()
-	{
-	}
-
-CSpudProtocol::~CSpudProtocol()
-	{
-	}
-
-/**
-Constructs the SpudProtocol object
-
-@param aBindMan reference to BindMan object
-*/
-void CSpudProtocol::Construct(CBindMan& aBindMan)
-	{
-	iBindMan = &aBindMan;
-	}
-
-void CSpudProtocol::SetProtocolBaseL(CProtocolBase* aProtocolBase)
-	{
-	if(iProtocolBase)
-		{
-		SPUDMUX_LOG(__FLOG_0(_L("CSpudProtocol::SetProtocolBaseL already bound to protocol")));
-		User::Leave(KErrInUse);
-		}
-
-	iProtocolBase = aProtocolBase;
-	ASSERT(iProtocolBase);
-	}
-
-
-void CSpudProtocol::Identify(TServerProtocolDesc *aDesc) const
-	{
-	ASSERT(iProtocolBase);
-    iProtocolBase->Identify(aDesc);
-	}
-
-/**
-Receives an indication that the lower NIF is ready to send packets.
-
-@param aProtocol CNifIfBase pointer of lower NIF
-*/
-void CSpudProtocol::StartSending(CProtocolBase* aProtocol)
-	{
-	TContextId id = KAllContexts;
-	TRAPD(rc, id = iBindMan->FindContextIdL(reinterpret_cast<CNifIfBase*>(aProtocol)));
-	__ASSERT_ALWAYS(rc == KErrNone, iBindMan->SpudMan()->Panic());
-	iBindMan->SpudMan()->StartSending(id);
-	}
-
-/**
-Receives PDU from the lower NIF and passes it to the upper protocol layer.
-
-@param aChain Datagram to process
-@param aSourceProtocol CNifIfBase pointer of lower NIF (ignored)
-*/
-void CSpudProtocol::Process(RMBufChain& aChain, CProtocolBase* /*aSourceProtocol*/)
-	{
-	ASSERT(iProtocolBase);
-    iProtocolBase->Process(aChain, reinterpret_cast<CProtocolBase*>(iBindMan->SpudMux()));
-	}
-
-/**
-Receives PDU from the lower NIF and passes it to the upper protocol layer.
-
-@param aPDU Datagram to process
-@param aFrom Source address
-@param aTo Destination address
-@param aSourceProtocol (ignored)
-*/
-void CSpudProtocol::Process(TDes8& aPDU, TSockAddr* aFrom, TSockAddr* aTo, CProtocolBase* /*aSourceProtocol*/)
-	{
-	ASSERT(iProtocolBase);
-    iProtocolBase->Process(aPDU, aFrom, aTo, reinterpret_cast<CProtocolBase*>(iBindMan->SpudMux()));
-	}
-
-/**
-Propagates error conditions up the stack, eventually to socket service providers.
-
-@param aError The error code 
-@param aSourceProtocol (ignored)
-*/
-void CSpudProtocol::Error(TInt aError, CProtocolBase* /*aSourceProtocol*/)
-	{
-	ASSERT(iProtocolBase);
-    iProtocolBase->Error(aError, reinterpret_cast<CProtocolBase*>(iBindMan->SpudMux()));
-	}
-
-/**
-Calls StartSending on the upper network protocol.
-*/
-void CSpudProtocol::DoStartSending() const
-	{
-	ASSERT(iProtocolBase);
-	iProtocolBase->StartSending(reinterpret_cast<CProtocolBase*>(iBindMan->SpudMux()));
-	}
-