--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tcpiputils/dnd/inc/llmnrresponder.h	Tue Jan 26 15:23:49 2010 +0200
@@ -0,0 +1,147 @@
+// 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:
+// llmnrresponder.h - DND Link-local Multicast Name Resolution  
+// responder module header
+//
+
+#ifndef __LLMNRRESPONDER_H__
+#define __LLMNRRESPONDER_H__
+
+/**
+@file llmnrresponder.h
+LLMNR responder (listen and reply queries)
+@internalComponent	Domain Name Resolver
+*/
+#include "dns.h"
+#include "llmnrconf.h"
+#include "llmnrnotifyhandler.h"
+#include "inet6log.h"
+#include "hostname.h"
+
+class TInetAddressInfo;
+class CLlmnrEntry;
+
+const TInt KLlmnrMaxEnabled = 15;
+
+const TInt KLlmnrMaxEntries = 2 * KLlmnrMaxEnabled; // NOTE: Must not  be bigger than 255
+
+const TInt KLlmnrMaxSessions = KLlmnrMaxEntries;
+
+class TLlmnrMsgData: public TDnsRequest
+	{
+public:
+	TLlmnrMsgData();
+	TBool Reply(CDnsSocket &aSource, const TMsgBuf &aBuf, const TInetAddr &aServer);
+	void Sent(CDnsSocket &aSource);
+	void Abort(CDnsSocket &/*aSource*/, const TInt aReason);
+	TBool Build(CDnsSocket &aSource, TMsgBuf &aMsg, TInetAddr &aServer, TInt aMaxMessage);
+
+	void Timeout(const TTime &aNow);//< called for timer expiration (when set)
+
+	RTimeout iTimeout;		//< Timer for "unique test" queries
+
+	CDndLlmnrResponder *iParent;
+	TDndQuestion iQuestion;	//< The question being responded or queried
+	TUint iQR:1;			//< QR (Query/Response) bit to be used in the header
+	TUint iAA:1;			//< AA (Authoritative Answer) bit to be used in the header
+	TUint iRCode:8;			//< RCODE field to be used in the header
+	TUint iRepeat:8;		//< Count down for repeat transmissions
+	TInetAddr iDstAddr;		//< The destination address of the message
+	CLlmnrEntry *iLlmnrEntry;//< pointer to the corresponding TLlmnrEntry
+	};
+
+// This ungainly manoevure is forced on us because the offset is not evaluated early enough by GCC3.4 to be
+// passed as a template parameter
+#if defined(__X86GCC__) || defined(__GCCE__)
+#define KLlmnrMsgDataTimeoutOffset 20
+__ASSERT_COMPILE(KLlmnrMsgDataTimeoutOffset == _FOFF(TLlmnrMsgData, iTimeout));
+#else
+#define KLlmnrMsgDataTimeoutOffset _FOFF(TLlmnrMsgData, iTimeout)
+#endif
+
+class TLlmnrMsgDataTimeoutLinkage : public TimeoutLinkage<TLlmnrMsgData, KLlmnrMsgDataTimeoutOffset>
+/**
+Static timeout linkage for TLlmnrMsgData.
+*/
+	{
+public:
+	static void Timeout(RTimeout &aLink, const TTime &aNow, TAny * /*aPtr*/)
+		{
+		Object(aLink)->Timeout(aNow);
+		}
+	};
+
+
+
+class CHostCallback
+	{
+public:
+	CHostCallback(MDnsResolver &aCallback) : iCallback(aCallback) {}
+	CHostCallback *iNext;
+	MDnsResolver &iCallback;
+	};
+
+class CDndLlmnrResponder : public CDnsSocket
+/**
+Listens incoming LLMNR queries and replies to those that apply to this node.
+*/
+	{
+	friend class TLlmnrMsgData;
+	friend class CDndLlmnrNotifyHandler;
+public:
+	CDndLlmnrResponder(CDndEngine &aControl,MDnsServerManager &aServerManager, THostNames &aHostNames);
+	void ConstructL();
+	~CDndLlmnrResponder();
+	void ConfigurationChanged();
+
+	void UpdateStart();
+	TInt UpdateInterface(const TName &aIfName, const TIpVer aIpVer, const TInetScopeIds &aZone, const TSockAddr &aHwAddr, TInt aLlmnrDisable);
+	void UpdateFinish();
+	void ActivateSocketL();
+
+
+	CDndEngine &iControl;						//< The dnd engine
+	MDnsServerManager &iServerManager;			//< The server manager
+	THostNames &iHostNames;						//< The local hostnames database reference.
+
+	TInt SetHostName(TUint32 aId, const TDesC &aName);
+	TInt GetHostName(TUint32 aId, MDnsResolver &aCallback);
+	//
+	TInt DoUpdate(CLlmnrEntry &aEntry);			//< Start conflict test for the entry
+private:
+	void DoCallbacks(TUint32 aId);				//< Do callbacks if all hostname entries are unique
+	TInt DoHostNameState(TUint32 aId);			//< Returns current state of hostname
+	void CancelAll(const CLlmnrEntry &aEntry);	//< Cancel activity on the entry
+
+	TInt FormatHostName(CLlmnrEntry &aEntry, const TSockAddr &aHwAddr);
+
+	TInt JoinMulticastGroup(TUint32 aIndex, TIpVer aIpVer);
+	TInt MakeMyAddr(const TUint32 aIfIndex, const TInetAddr &aTarget, EDnsType aType, TInetAddr &aAddr);
+	TUint32 IsMyAddress(const TDndQuestion &aQuestion);
+	void Query(const TMsgBuf &aBuf, const TInetAddr &aServer, const RSocket &aSocket);
+
+#ifdef _LOG
+	void LogPrint(const TDesC &aStr, const CLlmnrEntry &aEntry);
+	void LogPrint(const TDesC &aStr, const TDndQuestion &aQuestion);
+#endif
+
+	CDndLlmnrNotifyHandler *iLlmnrNotifyHandler;
+	TLlmnrMsgData	iLlmnrDataList[KLlmnrMaxSessions];	   //< List of active LLMNR responder message sessions
+
+	CLlmnrEntry *iEntryList;		//< The current set of valid answers from this node.
+	CLlmnrConf *iLlmnrConf;			//< Pointer to LLMNR configuration class
+	CHostCallback *iCallbacks;		//< Installed callbacks that wait for the unique completion.
+   };
+
+#endif