--- a
+++ b/src/policies/DIF/RA/Forwarding/DistanceVector/DistanceVectorPolicy.h
@@ -0,0 +1,78 @@
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program. If not, see http://www.gnu.org/licenses/.
+//
+
+/* Author: Kewin Rausch (kewin.rausch@create-net.org) */
+
+#ifndef __RINA_DISTANCEVECTORPOLICY_H
+#define __RINA_DISTANCEVECTORPOLICY_H
+
+#include <omnetpp.h>
+
+#include "PDUFTGPolicy.h"
+
+#define PDUFTG_SELFMSG_FSUPDATE 0x01
+
+// This implements a basic distance-vector routing policy.
+// The metric used is in term of hops.
+//
+class DistanceVectorPolicy :
+ public PDUFTGPolicy
+{
+private:
+ /* msec between updates. */
+ unsigned int updateT;
+
+ // Just prepare an update fo a destination host.
+ PDUFTGUpdate * prepareFSUpdate(Address destination);
+
+protected:
+
+ void handleMessage(cMessage *msg);
+ void initialize();
+
+public:
+ DistanceVectorPolicy();
+ ~DistanceVectorPolicy();
+
+ // Computes the initial state of the forwarding table.
+ //
+ void computeForwardingTable();
+
+ // Evaluated in term of policy defined flow if a flow exists.
+ //
+ virtual PDUFTGInfo * flowExists(Address addr, unsigned short qos);
+
+ /* Get the update timer actual tick value.
+ */
+ unsigned int getUpdateTimeout();
+
+ // Insert a new flow which has been open locally to this IPC Process.
+ //
+ void insertNewFlow(Address addr, short unsigned int qos, RMTPort * port);
+
+ // Merge an incoming information with the existing ones.
+ //
+ void mergeForwardingInfo(PDUFTGUpdate * info);
+
+ // Removes a local opened flow.
+ //
+ virtual void removeFlow(Address addr, short unsigned int qos);
+
+ /* Set a new timeout between an update message and another, in seconds.
+ */
+ void setUpdateTimeout(unsigned int sec);
+};
+
+#endif // __RINA_DISTANCEVECTORPOLICY_H