--- a/telephonyprotocols/rawipnif/version1/src/IPv6ProtocolIf.cpp	Wed Aug 18 10:57:47 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,696 +0,0 @@
-// Copyright (c) 2002-2009 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:
-// This file implements the CIPv6ProtocolIf class, which handles the transmission
-// of IPv6 data to and from the TCP/IP stack.
-// 
-//
-
-/**
- @file
-*/
-
-#include <e32hal.h>	// UserHal::MachineInfo()
-#include <etelpckt.h>
-#include <in_iface.h>
-#include <in6_if.h>
-#include "RawIPNifMain.h"
-#include "IPv6ProtocolIf.h"
-#ifdef WCDMA_STUB
-#include <UMTSNifControlIf.h>
-#endif
-#define LOG_IP_ADDRESS(desc,addr) _LOG_L2C5(_L8("    " desc " = %d:%d:%d:%d from context"), \
-			addr[3], addr[2], addr[1], addr[0]);
-
-CIPv6ProtocolIf::CIPv6ProtocolIf(CRawIPNifMain& aNifMain, CBttLogger* aTheLogger)
-/**
- * Constructor
- */ 
-	: CProtocolIfBase(aNifMain,aTheLogger),
-	  iTheLogger(aTheLogger), 
-	  iSpeedMetric(KDefaultSpeedMetric)
-	{
-	}
-
-CIPv6ProtocolIf::~CIPv6ProtocolIf()
-/**
- *	Destructor
- */
-	{
-	}
-
-void CIPv6ProtocolIf::BindL(TAny* aId)
-/**
- *	Binds protocol to the Nif
- *
- *	@param aId A point the the protocol(TCP/IP)
- */
-	{
-	_LOG_L1C2(_L8("CIPv6ProtocolIf::BindL [aId=%X]"), aId);
-
-	CProtocolIfBase::BindL(aId); // Call the superclass's method.
-	iNotify = iNifMain.Notify();
-	}
-
-TInt CIPv6ProtocolIf::Control(TUint aLevel, TUint aName, TDes8& aOption,
-							TAny* /*aSource*/)
-/**
- * The main function called by the TCP/IP protocol to control the interface.
- * Can perform a variety of general IP tasks (such as getting IP config)
- * and "3G" specific tasks (such as deleting the context).
- *
- * @param aLevel The level of the interface to control - always KSOLInterface
- * @param aName The command to perform
- * @param aOption Data to be input/output as a result of the command
- * @param aSource The source of the command (unused)
- * @return Standard error codes
- */
-	{
-	_LOG_L1C3(_L8("CIPv6ProtocolIf::Control [aLevel=%d, aName=%d]"),
-		aLevel, aName);
-
-	if (aLevel == KSOLInterface)
-		{
-		switch (aName)
-			{
-		// General IP configuration commands are below this point.
-
-		case KSoIfInfo6:
-			// Gets information about the interface, such as name and MTU.
-			return WriteIfInfo(aOption);
-
-		case KSoIfConfig:
-			// Gets interface configuration, eg. IP address and DNS servers.
-			return WriteIfConfig(aOption);
-
-		case KSoIfGetConnectionInfo:
-			// Gets IAP and network information.
-			return WriteConnectionInfo(aOption);
-
-		case KSoIfHardwareAddr:
-			// unsupported because we don't have a h/w address
-		case KSoIfCompareAddr:
-			// this never actually appears to be called
-			break;
-
-		// 3G-specific configuration commands are below this point.
-#ifdef WCDMA_STUB
-		case KRegisterEventHandler:
-			// Raw IP NIF Events are not supported
-		case KContextSetEvents:
-			// Raw IP NIF Events are not supported
-			break;
-
-		case KContextCreate:
-			// We don't support creating new secondary contexts.
-			break;
-
-		case KContextDelete:
-			// Deletes the primary PDP context. This will shut down the Nif.
-			return DeleteContext(aOption);
-
-		case KContextActivate:
-			// If the IPv6 interface is up, then the context will already have
-			// been activated. So this command should fail with 
-			// KErrAlreadyExists
-			{
-			TUint8* ptr = CONST_CAST(TUint8*, aOption.Ptr()); 
-			TContextParameters* contextParams =
-				REINTERPRET_CAST(TContextParameters*, ptr);
-
-			if (contextParams->iContextInfo.iContextId != 
-				STATIC_CAST(TInt8, GetNifMain().GetBcaController()->Nsapi()))
-				{
-				contextParams->iReasonCode = KErrNotFound;
-				}
-			else
-				{
-				contextParams->iContextInfo.iStatus =
-					GetNifMain().GetContextStatus();
-				contextParams->iReasonCode = KErrAlreadyExists;
-				}
-			return KErrNone;
-			}
-
-		case KNifSetDefaultQoS:
-		case KContextQoSSet:
-			// Setting the QoS is meaningless over GPRS, so we just return that
-			// we don't support these operations.
-			break;
-
-		case KContextTFTModify:
-			// As we only have one primary context, we don't support anything
-			// to do with traffic flow templates, which are used by secondary
-			// contexts.
-			break;
-
-		case KContextModifyActive:
-			// This command is only valid aftermodifying TFT/QoS parameters. 
-			// As we don't support any of these operations,
-			// this command is never valid.
-			break;
-#endif
-		default:
-			break;
-			}
-		}
-	return KErrNotSupported;
-	}
-
-TInt CIPv6ProtocolIf::WriteIfConfig(TDes8& aIfConfig)
-/**
- * Writes the configuration of the interface (eg. IP address, DNS servers)
- * into the supplied descriptor.
- *
- * @param aIfConfig Will contain the interface configuration
- * @return KErrNotSupported if an incorrect structure is passed, 
- * otherwise KErrNone
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::WriteIfConfig"));
-	__ASSERT_DEBUG((TUint)aIfConfig.MaxLength() >= sizeof (TSoInet6IfConfig), User::Panic(KIPv6ProtocolIfName, 0));
-
-	if ((TUint)aIfConfig.MaxLength() < sizeof(TSoInet6IfConfig))
-		{
-		return KErrArgument;
-		}
-
-	TUint8* ptr = CONST_CAST(TUint8*, aIfConfig.Ptr());
-	TSoInet6IfConfig* config = REINTERPRET_CAST(TSoInet6IfConfig*, ptr);
-
-	TEui64Addr& localId = TEui64Addr::Cast(config->iLocalId);
-	localId = iSettings.iLocalIfId;
-
-	// If required, configure static DNS addresses
-	if (!iSettings.iPrimaryDns.IsUnspecified())
-		{
-		config->iNameSer1.SetAddress(iSettings.iPrimaryDns);
-		if (!iSettings.iSecondaryDns.IsUnspecified())
-			config->iNameSer2.SetAddress(iSettings.iSecondaryDns);
-		}
-		
-	config->idPaddingBits = 0;
-
-	return KErrNone;
-	}
-
-TInt CIPv6ProtocolIf::WriteIfInfo(TDes8& aIfInfo)
-/**
- * Writes information about the interface into the supplied descriptor.
- *
- * @param aIfInfo Will contain the interface information
- * @return KErrArgument if an incorrect structure is passed, otherwise KErrNone
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::WriteIfInfo"));
-	__ASSERT_DEBUG((TUint)aIfInfo.MaxLength() >= sizeof (TSoIfInfo6), User::Panic(KIPv6ProtocolIfName, 0));
-
-	if ((TUint)aIfInfo.MaxLength() < sizeof(TSoIfInfo6))
-		{
-		return KErrArgument;
-		}
-
-	TSoIfInfo6* info = (TSoIfInfo6*) aIfInfo.Ptr();
-	info->iFeatures = KIfCanBroadcast | KIfCanMulticast;
-	info->iSpeedMetric = iSpeedMetric;
-	info->iMtu = KDefaultMtu;
-	info->iRMtu = KDefaultMtu;
-	WriteIfName(info->iName);
-
-	return KErrNone;
-	}
-
-TInt CIPv6ProtocolIf::WriteConnectionInfo(TDes8& aConnectionInfo)
-/**
- * Writes information about the IAP and network we're associated with. This
- * is used to route data in a multi-homing environment.
- *
- * @param aConnectionInfo Will contain the connection information
- * @return Standard CommDB error codes
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::WriteConnectionInfo"));
-
-	TSoIfConnectionInfo* connectionInfo =
-		(TSoIfConnectionInfo*) aConnectionInfo.Ptr();
-
-	TInt err;
-	// Append the 2 commdb filed into this descriptor
-	TBuf<2*KCommsDbSvrMaxColumnNameLength+1> fieldName;
-
-	fieldName.Copy(TPtrC(IAP));
-	fieldName.Append(KSlashChar);
-	fieldName.Append(TPtrC(COMMDB_ID));
-	err = GetNifMain().GetAgent()->ReadInt(fieldName, connectionInfo->iIAPId);
-	if (err != KErrNone)
-		{
-		return err;
-		}
-
-	fieldName.Copy(TPtrC(IAP));
-	fieldName.Append(KSlashChar);
-	fieldName.Append(TPtrC(IAP_NETWORK));
-	err = GetNifMain().GetAgent()->ReadInt(fieldName, connectionInfo->iNetworkId);
-	if (err != KErrNone)
-		{
-		return err;
-		}
-
-	return KErrNone;
-	}
-#ifdef WCDMA_STUB
-
-TInt CIPv6ProtocolIf::DeleteContext(TDes8& aContextParameters)
-/**
- * Deletes a context. As the NIF is responsible for one primary context,
- * this is equivalent to closing down the NIF.
- *
- * @param aContextParameters Parameters of the context to delete
- * @return KErrArgument if an incorrect structure is passed, otherwise KErrNone
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::DeleteContext"));
-
-	if (aContextParameters.Length() != sizeof(TContextParameters))
-		{
-		return KErrArgument;
-		}
-
-	TUint8* ptr = CONST_CAST(TUint8*, aContextParameters.Ptr());
-	TContextParameters* params = REINTERPRET_CAST(TContextParameters*, ptr);
-
-	if (params->iContextInfo.iContextId != 
-		STATIC_CAST(TInt8, GetNifMain().GetBcaController()->Nsapi()))
-		{
-		params->iReasonCode = KErrBadName;
-		}
-	else
-		{
-		params->iReasonCode = KErrNone; 
-		GetNifMain().Stop(KErrNone, MNifIfNotify::EDisconnect);
-		}
-
-	return KErrNone;
-	}
-
-#endif
-
-void CIPv6ProtocolIf::ReadCommDbGprsSettingsL()
-/**
- * Reads GPRS IP settings from CommDB via the agent.
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::ReadCommDbGprsSettings"));
-	
-	// Read he DNS addresses..
-	ReadIPv6SettingL(TPtrC(GPRS_IP6_NAME_SERVER1), iSettings.iPrimaryDns);
-	ReadIPv6SettingL(TPtrC(GPRS_IP6_NAME_SERVER2), iSettings.iSecondaryDns);	
-	// Read whether to get the DNS addresses from the server.
-	_BTT_LEAVEIFERROR(GetNifMain().GetAgent()->ReadBool(
-		TPtrC(GPRS_IP6_DNS_ADDR_FROM_SERVER),
-		iSettings.iGetDnsFromServer));
-	
-	// Read whether to get IPv4 address from the server
-	// This is only needed for the integration tests. If it's true then 
-	// the IPv4 address will be used to build up the IPv6 address. 
-	_BTT_LEAVEIFERROR(GetNifMain().GetAgent()->ReadBool(
-		TPtrC(GPRS_IP_ADDR_FROM_SERVER),
-		iSettings.iGetIpFromServer));
-		
-
-	if (iSettings.iGetIpFromServer == EFalse)
-		{
-		// Sets the IPv6 Link-local address from IpAddr.
-		// LocalId is derived from IpAddr and it's further used to set the Link-local
-		// address elsewhere by adding a prefix (FE80::) in front.
-		// For IpAddr: 192.168.1.1, link-local address will be FE80::C0A8:101.
-		TUint32 ipAddr;	
-		ReadIPv4SettingL(TPtrC(GPRS_IP_ADDR), ipAddr);
-		const TUint8 constantId[8] = { 0, 0, 0, 0, 
-									ipAddr >> 24, (ipAddr >> 16) & 0xFF, 
-									(ipAddr >> 8) & 0xFF, ipAddr & 0xFF }; 
-		iSettings.iLocalIfId.SetAddr(constantId, sizeof (constantId));
-		}
-	else
-		{
-			
-		//
-		// Use the 64 bit id of MARM machines as our interface id
-		//
-		TMachineInfoV1Buf machineInfo;	
-		UserHal::MachineInfo(machineInfo);
-		iSettings.iLocalIfId.SetAddr(machineInfo().iMachineUniqueId);
-		iSettings.iLocalIfId.SetUniversalBit(0);
-		//
-		// In WINS environment the id is zero which is no-no
-		//
-		if (iSettings.iLocalIfId.IsZero())
-			{
-			iSettings.iLocalIfId.SetAddrRandomNZ();
-			}		
-
-		}
-	}
-
-void CIPv6ProtocolIf::UpdateContextConfigL(const
-										  RPacketContext::TContextConfigGPRS&
-										  aConfig)
-/**
- * Called when the context has been activated to set our IP address and get
- * any other required settings from CommDB.
- *
- * @param aConfig The new context config
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::UpdateContextConfig"));
-
-	// Get the settings which are stored in CommDB.
-	ReadCommDbGprsSettingsL();
-
-	// Get our IP address from the GPRS context config.
-	TInetAddr address;
-	
-	TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
-	tempAddr.Copy(aConfig.iPdpAddress);
-	TInt ret = address.Input(tempAddr);
-
-	// We've got our IP address! Let's save it.
-	if (ret == KErrNone)
-		{
-		iSettings.iLocalAddr = address.Ip6Address();
-		LOG_IP_ADDRESS("Got local IP address", iSettings.iLocalAddr);
-		}
-	else
-		{
-		_LOG_L2C2(_L8("Couldn't get IP address from GPRS config (err: %d)"),
-			ret);
-
-		// Don't leave on this error: we may still be OK if we read some
-		// settings from CommDB.
-		}
-
-	// @todo - is this correct. We can only get the DNS addresses
-	// from the TSY using the iProtocolConfigOption data. Yet a client could
-	// access those DNS config details without knowing about the state of the
-	// iSettings.iGetDnsFromServer flag.
-
-	if ((iSettings.iGetDnsFromServer) ||
-		((iSettings.iPrimaryDns.IsUnspecified()) &&
-		 (iSettings.iSecondaryDns.IsUnspecified())) ) 
-		{
-		TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
-		tempAddr.Copy(aConfig.iProtocolConfigOption.iDnsAddresses.iPrimaryDns);
-		ret = address.Input(tempAddr);
-
-		if (ret == KErrNone)
-			{
-			iSettings.iPrimaryDns = address.Ip6Address();
-			LOG_IP_ADDRESS("Got primary DNS", iSettings.iPrimaryDns);
-			}
-		else
-			{
-			_LOG_L2C2(_L8("Couldn't get primary DNS address from GPRS config (err: %d)"),
-				ret);
-
-			// Don't leave on this error: we may still be OK if we read some
-			// settings from CommDB.
-			}
-
-		tempAddr.Copy(aConfig.iProtocolConfigOption.iDnsAddresses.iSecondaryDns);
-		ret = address.Input(tempAddr);
-
-		if (ret == KErrNone)
-			{
-			iSettings.iSecondaryDns = address.Ip6Address();
-			LOG_IP_ADDRESS("Got secondary DNS", iSettings.iPrimaryDns);
-			}
-		else
-			{
-			_LOG_L2C2(_L8("Couldn't get secondary DNS address from GPRS config (err: %d)"),
-				ret);
-
-			// Don't leave on this error: we may still be OK if we read some
-			// settings from CommDB.
-			}
-		}
-	else
-		{
-		LOG_IP_ADDRESS("Using CommDB DNS address - Primary ", iSettings.iPrimaryDns);
-		LOG_IP_ADDRESS("                         - Secondary ", iSettings.iSecondaryDns);
-		}
-	}
-
-void CIPv6ProtocolIf::UpdateConnectionSpeed(TUint aConnectionSpeed)
-/**
- * Sets the speed metric to return to TCP/IP, based on what the TSY tells us.
- *
- * @param aConnectionSpeed Our connection speed
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::UpdateConnectionSpeed"));
-
-	iSpeedMetric = aConnectionSpeed;
-	}
-
-void CIPv6ProtocolIf::ReadIPv4SettingL(const TDesC& aFieldName,
-									   TUint32& aIpAddr)
-/**
- * Reads an IPv4 address from CommDB, via the TRP agent. It leaves if an error
- * other than KErrNotFound occurs.
- *
- * @param aFieldName The name of the field to read
- * @param aIpAddr Will contain the IP address
- */
-	{
-#ifdef __BTT_LOGGING__
-	TBuf8<256> debugBuffer;
-	debugBuffer.Copy(aFieldName);
-	_LOG_L1C2(_L8("CIPv6ProtocolIf::ReadIp4Setting [aFieldName=%S]"),
-		&debugBuffer);
-#endif
-
-	TBuf<KCommsDbSvrMaxFieldLength> name;
-	TInetAddr ip4Addr;
-
-	TInt ret = GetNifMain().GetAgent()->ReadDes(aFieldName, name);
-
-	if (ret == KErrNone)
-		{
-		// We've successfully read an IP address, so convert it into a number.
-		ip4Addr.Input(name);
-		aIpAddr = ip4Addr.Address();
-		}
-	else
-		{
-		// We couldn't get the IP address, so set it to 0.0.0.0. Note that we
-		// only leave here if we got a more serious error than "not found".
-		aIpAddr = 0;
-		if (ret != KErrNotFound)
-			{
-			_BTT_LEAVEIFERROR(ret);
-			}
-		}
-	}
-
-void CIPv6ProtocolIf::ReadIPv6SettingL(const TDesC& aFieldName,
-									   TIp6Addr& aIpAddr)
-/**
- * Reads an IPv6 address from CommDB, via the TRP agent. It leaves if an error
- * other than KErrNotFound occurs.
- *
- * @param aFieldName The name of the field to read
- * @param aIpAddr Will contain the IP address
- */
-	{
-#ifdef __BTT_LOGGING__
-	TBuf8<256> debugBuffer;
-	debugBuffer.Copy(aFieldName);
-	_LOG_L1C2(_L8("CIPv6ProtocolIf::ReadIp6Setting [aFieldName=%S]"),
-		&debugBuffer);
-#endif
-
-	TBuf<KCommsDbSvrMaxFieldLength> name;
-	TInetAddr ip6Addr;
-
-	TInt ret = GetNifMain().GetAgent()->ReadDes(aFieldName, name);
-
-	if (ret == KErrNone)
-		{
-		// We've successfully read an IP address, so convert it into a number.
-		ip6Addr.Input(name);
-		aIpAddr = ip6Addr.Ip6Address();
-		}
-	else
-		{
-		// We couldn't get the IP address, so set it to 0.0.0.0. Note that we
-		// only leave here if we got a more serious error than "not found".
-		aIpAddr = KInet6AddrNone;
-		if (ret != KErrNotFound)
-			{
-			_BTT_LEAVEIFERROR(ret);
-			}
-		}
-	}
-
-TInt CIPv6ProtocolIf::Send(RMBufChain& aPdu, TAny* aSource)
-/**
- * Called by the protocol to send an outgoing IP packet to the network.
- *
- * @param aPdu The outgoing packet
- * @param aSource The source of the packet
- * @return Standard error codes
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::Send"));
-
-#ifdef __BTT_LOGGING__
-	LogPacket(aPdu);
-#endif
-
-	// Return <0: an error occurred
-	// Return  0: no error, but don't send any more packets
-
-	return GetNifMain().SendPacket(aPdu, aSource, KIp6FrameType);
-	}
-
-void CIPv6ProtocolIf::Info(TNifIfInfo& aInfo) const
-/**
- * Called by the protocol to get information about the NIF.
- *
- * @param aInfo Will contain NIF information
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::Info"));
-
-	// The parent class sets everything except the name...
-	CProtocolIfBase::Info(aInfo);
-	// ...which we set here.
-	WriteIfName(aInfo.iName);
-	}
-
-TInt CIPv6ProtocolIf::Notification(TAgentToNifEventType /*aEvent*/, 
-	void* /*aInfo*/)
-/**
- * The Nif will ignore any notification sent
- *
- * @param aEvent Not used
- * @param aInfo Not used 
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::Notification"));
-
-	return KErrNone;
-	}
-
-void CIPv6ProtocolIf::StartSending(CProtocolBase* aProtocol)
-/**
- * Indicates to the protocol layer that the NIF is ready to send packets.
- *
- * @param aProtocol A pointer to a protocol
- */
-	{
-	_LOG_L1C2(_L8("CIPv6ProtocolIf::StartSending [aProtocol=%X]"), aProtocol);
-
-	CProtocolIfBase::StartSending(aProtocol);
-	}
-
-TBool CIPv6ProtocolIf::WantsProtocol(TUint16 aProtocolCode)
-/**
- * Indicates the type of protocol implemented by this class.
- *
- * @param aProtocolCode The protocol type
- */
-	{
-	_LOG_L1C2(_L8("CIPv6ProtocolIf::WantsProtocol [aProtocolCode=%X]"),
-		aProtocolCode);
-
-#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS
-	return ((aProtocolCode & 0x00FF) == KIp6FrameType);
-#else
-	(void) aProtocolCode; // disable compiler warning
-	return ETrue;
-#endif // RAWIP_HEADER_APPENDED_TO_PACKETS
-	}
-
-void CIPv6ProtocolIf::Process(RMBufChain& aPdu)
-/**
- * Called when an incoming IP packet has arrived. Send packets up to the
- * TCP/IP stack.
- *
- * @param aPdu The incoming packet
- */
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::Process"));
-
-#ifdef __BTT_LOGGING__
-	LogPacket(aPdu);
-#endif
-
-	// Pass incoming packets up to the protocol, unless it hasn't
-	// been bound yet.
-	if (iProtocol)
-		{
-		_LOG_L1C1(_L8("CIPv6ProtocolIf: Packet Sent to TCP/IP Protocol!!!"));
-		iProtocol->Process(aPdu, reinterpret_cast<CProtocolBase*>(this));
-		}
-	else 
-		{
-		_LOG_L2C1(_L8("WARNING: dumping incoming packet, no protocol bound"));
-		aPdu.Free();
-		}
-	}
-
-#ifdef __BTT_LOGGING__
-void CIPv6ProtocolIf::LogPacket(const RMBufChain& aPacket)
-/**
-* Logs packet information into log file.
-*
-* @param aPacket The packet 
-*/
-	{
-	_LOG_L1C1(_L8("CIPv6ProtocolIf::LogPacket"));
-
-	TInt mBufLength = aPacket.Length() - aPacket.First()->Length();
-
-	_LOG_L3C2(_L8("Analysis of %d byte packet:"), mBufLength);
-
-	//Note: All the constants used on this method are a pragmatic guess of the
-	//IP header fields. The only porpose of this method is logging.
-
-	if (mBufLength < 40)
-		{
-		_LOG_L3C2(_L8(" -doesn't appear to be a valid IPv6 packet (length=%d)")
-			, mBufLength);
-		return;
-		}
-
-	// Get a pointer to the packet's payload.
-	const TUint8* payloadPtr = aPacket.First()->Next()->Ptr();
-
-	if ((payloadPtr[0] & 0xF0) != 0x60)
-		{
-		_LOG_L3C2(_L8(" - doesn't appear to be an IPv6 packet (version=0x%X)"),
-			(payloadPtr[0] & 0xF0) >> 4);
-		return;
-		}
-
-	_LOG_L3C2(_L8(" - traffic class: 0x%X"), 
-					((payloadPtr[0] & 0xF) << 4) | ((payloadPtr[1] & 0xF0) >> 4));
-	_LOG_L3C2(_L8(" - flow label: 0x%X"), 
-					((payloadPtr[1] & 0x0F) << 16) | (payloadPtr[2] << 8) | payloadPtr[3]);
-	_LOG_L3C2(_L8(" - payload length: 0x%X"), 
-					(payloadPtr[4] << 16) | payloadPtr[5]);
-	_LOG_L3C2(_L8(" - next header: 0x%08X"), payloadPtr[6]);
-	_LOG_L3C2(_L8(" - hop limit: 0x%08X"), payloadPtr[7]);
-	}
-#endif // __BTT_LOGGING__