public void SetInterfaceState(String ifName, uint addr, uint mask, uint gway)
{
IAdapter intf = FindAdapter(ifName);
if (intf == null)
{
throw new Exception("SetInterfaceState");
}
else
{
HostConfiguration h = IP.GetHostConfiguration();
// Remove existing interface binding, if any
h.Bindings.Flush(intf);
InterfaceIPConfiguration ipconf =
new InterfaceIPConfiguration(new IPv4(addr),
new IPv4(mask),
new IPv4(gway));
if (h.Bindings.Add(intf, ipconf) == false)
{
throw new Exception("SetInterfaceState");
}
}
}
public bool Add(IAdapter !adapter, InterfaceIPConfiguration !ipConfig)
{
if (ipBindings[ipConfig.Address] != null)
{
return(false);
}
ipBindings[ipConfig.Address] = new IPBinding(adapter, ipConfig);
AddInterfaceRoutes(ipConfig);
return(true);
}
private void AddInterfaceRoutes(InterfaceIPConfiguration !ipConfig)
{
//
// Add subnet route
//
IPv4Network subnet = new IPv4Network(ipConfig.Address,
ipConfig.NetMask);
routingTable.AddRoute(
new RouteEntry(subnet,
ipConfig.Address,
ipConfig.Address,
RouteEntry.DirectlyConnectedMetric,
RouteEntry.InterfaceRouteTag)
);
//
// Add route to gateway
//
routingTable.AddRoute(
new RouteEntry(ipConfig.Gateway,
ipConfig.Address,
ipConfig.Address,
RouteEntry.DirectlyConnectedMetric,
RouteEntry.InterfaceRouteTag)
);
//
// Add default route if none exists
//
if (routingTable.Lookup(IPv4Network.Default) == null)
{
routingTable.AddRoute(
new RouteEntry(IPv4Network.Default,
ipConfig.Gateway,
ipConfig.Address,
RouteEntry.DefaultRouteMetric,
RouteEntry.InterfaceRouteTag)
);
}
}
private void Flush(InterfaceIPConfiguration !ipConfig)
{
DeleteInterfaceRoutes(ipConfig);
ipBindings.Remove(ipConfig.Address);
}
private void DeleteInterfaceRoutes(InterfaceIPConfiguration !ipConfig)
{
routingTable.DeleteInterfaceRoutes(ipConfig.Address);
}
