internal void OnHelloReceive(IPHeader ipHeader, OspfHeader ospfHeader, OspfHelloHeader ospfHelloHeader)
{
lock (Lock)
{
LastSeen = DateTime.Now;
Log.Write("OSPF", "NEIGHBOR", string.Format("Hello received. From: {0}, State: {1}", ospfHeader.RouterID, OspfNeighborState));
RaiseEvent(NeighborEventType.HelloReceived);
if (ospfHelloHeader.Neighbor.Any(p => p == Module.RouterID))
{
var tupleData = new Tuple<IPHeader, OspfHeader, Tuple<IPAddress, IPAddress>>(ipHeader, ospfHeader,
new Tuple<IPAddress, IPAddress>(ospfHelloHeader.Dr, ospfHelloHeader.Bdr));
RaiseEvent(NeighborEventType.TwoWayReceived, tupleData);
}
else
{
var tupleData = new Tuple<IPHeader, OspfHeader, object>(ipHeader, ospfHeader, ospfHelloHeader);
RaiseEvent(NeighborEventType.OneWayReceived, tupleData);
}
}
}
//private void HandleHelloMessage(IPHeader ipHeader, OspfHeader ospfHeader, OspfHelloHeader ospfHelloHeader)
//{
// return;
// Neighbor neighbor = NeighborMap[ospfHeader.rid] ?? Neighbor.Create(ipHeader, ospfHeader, ospfHelloHeader);
// NeighborEventArgs args = NeighborEventArgs.Create(ipHeader, ospfHeader, ospfHelloHeader);
// neighbor.RaiseEvent(NeighborEventType.HelloReceived, args);
// if (ospfHelloHeader.neighbor.Any(p => p == RouterID))
// {
// neighbor.RaiseEvent(NeighborEventType.TwoWayReceived, args);
// }
// if (neighbor.IsNew && IsPotentialNeighbor(ipHeader, ospfHeader, ospfHelloHeader))
// {
// NeighborMap.Add(neighbor.RouterId, neighbor);
// neighbor.IsNew = false;
// }
// else
// {
// Log.Write("OSPF", "HELLO", string.Format("Incompatible OSPF hello message from .", ipHeader.saddr.StandardFormat));
// }
//}
private bool IsPotentialNeighbor(IPHeader ipHeader, OspfHeader ospfHeader, OspfHelloHeader ospfHelloHeader)
{
//if (!ospfHeader.aid.Equals(Area))
//{
// return false;
//}
//if (ospfHelloHeader.interval != HelloInterval)
//{
// return false;
//}
//if (ospfHelloHeader.routerdeadintvl != RouterDeadInterval)
//{
// return false;
//}
//if (((ospfHelloHeader.Options & OspfHelloOptions.ExternalRoutingCapable) == OspfHelloOptions.ExternalRoutingCapable) == IsStub)
//{
// return false;
//}
return true;
}
