diff -r 000000000000 -r af10295192d8 tcpiputils/dhcp/include/DHCPAuthentication.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tcpiputils/dhcp/include/DHCPAuthentication.h	Tue Jan 26 15:23:49 2010 +0200
@@ -0,0 +1,135 @@
+// 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:
+// DHCPv6/v4 Authentication RFC 3118
+// 
+//
+
+/**
+ @file DHCPAuthentication.h
+*/
+
+#ifndef DHCPAUTHENTICATION_H
+#define DHCPAUTHENTICATION_H
+
+#include <e32base.h>
+#include "DhcpIP6Msg.h"
+//#include "DHCPIP4Msg.h"
+
+/*
+	A client MUST be configurable to discard unauthenticated messages,
+   and SHOULD be configured by default to discard unauthenticated
+   messages if the client has been configured with an authentication key
+   or other authentication information.
+*/
+namespace DHCPv4
+{
+/* 0                   1                   2                   3
+   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+   |     Code      |    Length     |  Protocol     |   Algorithm   |
+   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+   |     RDM       | Replay Detection (64 bits)                    |
+   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+   |  Replay cont.                                                 |
+   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+   |  Replay cont. |                                               |
+   +-+-+-+-+-+-+-+-+                                               |
+   |                                                               |
+   |      Authentication Information(depends on the Protocol       |
+   |                                                               |
+   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+*/
+const TInt  KReqMaxRetry      = 3;  //     Max Request retry attempts
+}//DHCPv4 namespace
+
+namespace DHCPv6
+{
+/*   0                   1                   2                   3
+     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+    |          OPTION_AUTH          |          option-len           |
+    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+    |   protocol    |   algorithm   |      RDM      |               |
+    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
+    |                                                               |
+    |          replay detection (64 bits)           +-+-+-+-+-+-+-+-+
+    |                                               |   auth-info   |
+    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+               |
+    .                   authentication information                  .
+    .                       (variable length)                       .
+    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+      option-code                  OPTION_AUTH (11)
+
+      option-len                   11 + length of authentication
+                                   information field
+
+      protocol                     The authentication protocol used in
+                                   this authentication option
+
+      algorithm                    The algorithm used in the
+                                   authentication protocol
+
+      RDM                          The replay detection method used in
+                                   this authentication option
+
+      Replay detection             The replay detection information for
+                                   the RDM
+
+      authentication information   The authentication information,
+                                   as specified by the protocol and
+                                   algorithm used in this authentication
+                                   option
+*/
+const TInt KOptionAuthProtocolLength = 1; //(1 bytes)
+const TInt KOptionAuthAlgorithmLength = 1; //(1 bytes)
+const TInt KOptionAuthRDMLength = 1; //(1 bytes)
+const TInt KOptionAuthRDMdataLength = 8; //(8 bytes)
+
+class TInterfaceConfigInfo;
+class CDHCPOptionAuthentication : public CDHCPOptionAny
+/**
+  * DHCP Authentication option
+  *
+  * @internalTechnology
+  */
+	{
+
+public:
+   CDHCPOptionAuthentication() :
+      CDHCPOptionAny( &iProtocol ),
+      iProtocol( &iAlgorithm, KOptionAuthProtocolLength ),
+      iAlgorithm( &iRDM, KOptionAuthAlgorithmLength ),
+      iRDM( &iRDMdata, KOptionAuthRDMLength ),
+      iRDMdata( NULL, KOptionAuthRDMdataLength )
+      {
+      }
+
+   static COptionNode* NewL();
+
+   void CheckL( const TInterfaceConfigInfo& aInterfaceConfigInfo );
+   void InitL( const TInterfaceConfigInfo& aInterfaceConfigInfo );
+
+public:
+   CConstItem  iProtocol;
+   CConstItem  iAlgorithm;
+   CConstItem  iRDM;
+   CConstItem  iRDMdata;
+   //trailing authentication data is in CDHCPOptionAny::iOptionData
+	};
+
+}//DHCPv6 namespace
+
+#endif
+