| /* |
| * Copyright 2014 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.net.proxyarp; |
| |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.packet.PacketContext; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.Ip4Address; |
| |
| /** |
| * Service for processing arp requests on behalf of applications. |
| */ |
| // TODO: move to the peer host package |
| public interface ProxyArpService { |
| |
| /** |
| * Returns whether this particular IPv4 address is known to the system. |
| * |
| * @param addr an IPv4 address |
| * @return true if know, false otherwise |
| */ |
| boolean known(Ip4Address addr); |
| |
| /** |
| * Sends a reply for a given request. If the host is not known then the arp |
| * will be flooded at all edge ports. |
| * |
| * @param eth an arp request |
| * @param inPort the port the request was received on |
| */ |
| void reply(Ethernet eth, ConnectPoint inPort); |
| |
| /** |
| * Forwards an ARP request to its destination. Floods at the edge the ARP request if the |
| * destination is not known. |
| * |
| * @param eth an ethernet frame containing an ARP request. |
| */ |
| void forward(Ethernet eth); |
| |
| /** |
| * Handles a arp packet. |
| * Replies to arp requests and forwards request to the right place. |
| * @param context the packet context to handle |
| * @return true if handled, false otherwise. |
| */ |
| boolean handleArp(PacketContext context); |
| |
| } |