--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tcpiputils/dhcp/include/DHCPDb.h	Tue Jan 26 15:23:49 2010 +0200
@@ -0,0 +1,110 @@
+// 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:
+// DHCPControl.h
+// The DHCP Database access header file
+// 
+//
+
+/**
+ @file DHCPControl.h
+*/
+
+#ifndef DHCPDB_H
+#define DHCPDB_H
+
+#include <e32base.h>
+#include <es_enum.h>
+#include <comms-infras/metadata.h>
+
+#include <metadatabase.h>
+#include <commsdattypesv1_1.h>
+
+//uncomment this line to store DHCP persistent data in a file named according to the client ID
+//#define DHCP_PERSISTENTDATA_INFILE
+
+class CDHCPStateMachine;
+class TInetAddr;
+#ifdef DHCP_PERSISTENTDATA_INFILE
+class RFile;
+class RFs;
+#endif
+class CDHCPDb : public CBase
+/**
+  * Base DHCP database access control class
+  * 
+  *
+  * @internalTechnology
+  *
+  */
+	{
+public:
+	CDHCPDb( TUint32 aIapId ) :
+		iIapId( aIapId ),
+		iIpDNSAddressFromServer(0,0),
+		iNameServer1(0,0),
+		iNameServer2(0,0)
+		{
+		}
+	CDHCPDb( const TPtrC& aIpDNSAddressFromServer, const TPtrC& aNameServer1, const TPtrC& aNameServer2 ) :
+		iIpDNSAddressFromServer( aIpDNSAddressFromServer ),
+		iNameServer1( aNameServer1 ),
+		iNameServer2( aNameServer2 )
+		{
+		}
+	TBool ReadL( CDHCPStateMachine& aDhcpStateMachine, Meta::SMetaData& aPersistent );
+   void WriteL( CDHCPStateMachine& aDhcpStateMachine, const Meta::SMetaData& aPersistent );
+
+	// returns an array of address family enums e.g. KAfInet6, KAfInet
+	void GetAddressFamiliesL(RArray<int> & results);
+#ifdef SYMBIAN_NETWORKING_DHCPSERVER   	
+	TBool CheckIfDHCPServerImplEnabledL();
+#endif // SYMBIAN_NETWORKING_DHCPSERVER	
+#ifdef SYMBIAN_DNS_PROXY   	
+	void ReadHostNameL(CDHCPStateMachine& aDhcpStateMachine);
+#endif //SYMBIAN_DNS_PROXY
+
+public:
+	TUint32 iIapId;
+	TTime iLeaseExpiresAt;  //for IP4 it's the interface's IP address expiration time
+                           //for IP6 it's the interface's IA expiration time
+#ifdef SYMBIAN_NETWORKING_DHCPSERVER   
+	// set to indicate that the DHCP server implementation is needed
+	TBool iDHCPServerImpl;
+#endif // SYMBIAN_NETWORKING_DHCPSERVER	
+                       
+
+protected:
+
+	void OpenIAPViewLC(CommsDat::CMDBSession*& aSession, CommsDat::CCDIAPRecord*& aIapRecord);
+
+	static void VerifyFieldReadSuccessL(TInetAddr& addr, const TDesC& input, TInt field);
+
+#ifdef DHCP_PERSISTENTDATA_INFILE
+	void OpenFileLC( const TDesC8& aClientId, TAutoClose<RFs>& aFs, TAutoClose<RFile>& aFile, TBool aCreateNew );
+	void WritePersistentL( const TDesC8& aClientId, const Meta::SMetaData& aPersistent );
+	void ReadPersistentL( const TDesC8& aClientId, Meta::SMetaData& aPersistent );
+#endif
+
+private:
+	void InitialServiceLinkL( CommsDat::CMDBSession* aDbSession, CommsDat::CCDIAPRecord* aIAPSetting );
+
+protected:
+   //names of the fields in CommDb
+   TPtrC iIpDNSAddressFromServer;
+   TPtrC iNameServer1;
+   TPtrC iNameServer2;
+	};
+
+#endif
+