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/*
* Copyright 2014-2015 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.onlab.packet.Ethernet;
import org.onlab.packet.IpAddress;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.packet.PacketContext;
/**
* Service for processing ARP or NDP requests on behalf of applications.
*/
// TODO: move to the peer host package
public interface ProxyArpService {
/**
* Returns whether this particular IP address is known to the system.
*
* @param addr an IP address
* @return true if know, false otherwise
*/
boolean isKnown(IpAddress addr);
/**
* Sends a reply for a given request. If the host is not known then the
* arp or neighbor solicitation will be flooded at all edge ports.
*
* @param eth an arp or neighbor solicitation request
* @param inPort the port the request was received on
*/
void reply(Ethernet eth, ConnectPoint inPort);
/**
* Forwards an ARP or neighbor solicitation request to its destination.
* Floods at the edg the request if the destination is not known.
*
* @param eth an ethernet frame containing an ARP or neighbor solicitation
* request.
* @param inPort the port the request was received on
*/
void forward(Ethernet eth, ConnectPoint inPort);
/**
* Handles a arp or neighbor solicitation packet.
* Replies to arp or neighbor solicitation requests and forwards request
* to the right place.
* @param context the packet context to handle
* @return true if handled, false otherwise.
*/
boolean handlePacket(PacketContext context);
}
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