--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/networkprotocols/tcpipv4v6prt/src/icmp_sap.cpp	Tue Jan 26 15:23:49 2010 +0200
@@ -0,0 +1,108 @@
+// 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:
+// icmp_sap.cpp - ICMP service access point
+//
+
+#include "icmp6.h"
+#include <icmp6_hdr.h>
+#include <in_pkt.h>
+#include <in_chk.h>
+#include "in_net.h"
+//
+
+class CProviderICMP6 : public CProviderInet6Network
+	{
+public:
+	CProviderICMP6(CProtocolInet6Base* aProtocol, TInt aProtocolId);
+	virtual TInt DoWrite(RMBufSendPacket &aPacket, RMBufSendInfo &aInfo, TUint aOptions, TUint aOffset);
+	virtual TInt SetLocalName(TSockAddr &aAddr);
+	virtual TInt SecurityCheck(MProvdSecurityChecker *aChecker);
+	};
+
+CServProviderBase *ICMP6::NewSAPL(TUint aSockType, CProtocolInet6Base *aProtocol, TInt aId)
+	{
+	LOG(Log::Printf(_L("NewSAPL\t%S SockType=%d"), &aProtocol->ProtocolName(), aSockType));
+	if (aSockType != KSockDatagram)
+		User::Leave(KErrNotSupported);
+	CProviderICMP6 *provider = new (ELeave) CProviderICMP6(aProtocol, aId);
+	CleanupStack::PushL(provider);
+	provider->InitL();
+	CleanupStack::Pop();
+	LOG(Log::Printf(_L("NewSAPL\t%S SAP[%u] OK"), &aProtocol->ProtocolName(), (TInt)provider));
+	return provider;
+	}
+
+//
+
+CProviderICMP6::CProviderICMP6(CProtocolInet6Base* aProtocol, TInt aProtocolId) :
+	CProviderInet6Network(aProtocol)
+	{
+	__DECLARE_NAME(_S("CProviderICMP6"));
+
+	iProtocolId = aProtocolId;	// either ICMPv4 or ICMPv6 id
+	}
+
+TInt CProviderICMP6::DoWrite(RMBufSendPacket &aPacket, RMBufSendInfo &aInfo, TUint /*aOptions*/, TUint aOffset)
+	{
+	TInet6Checksum<TInet6HeaderICMP> icmp(aPacket, aOffset);
+	if (icmp.iHdr == NULL)
+		return KErrInet6ShortPacket;
+
+	iFlow.SetIcmpType(icmp.iHdr->Type(), icmp.iHdr->Code());
+	iFlow.SetNotify(this);
+	if (aInfo.iSrcAddr.Family())
+		iFlow.SetLocalAddr(aInfo.iSrcAddr);
+	if (aInfo.iDstAddr.Family())
+		iFlow.SetRemoteAddr(aInfo.iDstAddr);
+
+	const TInt status = aInfo.iFlow.Open(iFlow, &aInfo);
+	if (status == KErrNone)
+		{
+		// Compute the checksum here. This means that currently
+		// the application cannot compute the checksum into
+		// ICMP header. This may be a drawback for some situations
+		// and perhaps some flag is introduced later -- msa
+		//
+		// IPv4 ICMP checksum does not use "pseudoheader" => pass NULL for info when IPv4!
+		icmp.ComputeChecksum(aPacket, iProtocolId == STATIC_CAST(TInt, KProtocolInetIcmp) ? NULL : &aInfo, aOffset);
+		}
+	return status;
+	}
+
+//
+// Need to override the network SetLocalName because by default
+// the network deliver filters by the port number (compared to
+// the protocol number).
+//
+TInt CProviderICMP6::SetLocalName(TSockAddr &aAddr)
+	{
+	// To prevent accidental non-zero values of port messing things up,
+	// make sure the local port field is zero before doing the bind.
+	//
+	aAddr.SetPort(0);
+	return CProviderInet6Network::SetLocalName(aAddr);
+	}
+	
+// For now, require network control from ICMP sockets, because they
+// also see all incoming ICMP's, including any bounced packets from
+// other applications.
+TInt CProviderICMP6::SecurityCheck(MProvdSecurityChecker *aChecker)
+	{
+	const TInt res = CProviderInet6Network::SecurityCheck(aChecker);
+	if (res == KErrNone)
+		return CheckPolicy(KPolicyNetworkControl, "TCPIP ICMP SAP");
+	return res;
+	}
+
+