| /* |
| * Copyright 2019-present Open Networking Foundation |
| * |
| * 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.packet.packetfilter; |
| |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.ICMP6; |
| import org.onlab.packet.IPv6; |
| import org.onosproject.net.packet.PacketContext; |
| import org.onosproject.net.packet.PacketInClassifier; |
| |
| public class NSPacketClassifier implements PacketInClassifier { |
| |
| @Override |
| public boolean match(PacketContext packet) { |
| |
| Ethernet eth = packet.inPacket().parsed(); |
| |
| if (eth.getEtherType() == Ethernet.TYPE_IPV6) { |
| IPv6 ipv6Packet = (IPv6) eth.getPayload(); |
| if (ipv6Packet.getNextHeader() == IPv6.PROTOCOL_ICMP6) { |
| ICMP6 icmp6 = (ICMP6) ipv6Packet.getPayload(); |
| if (icmp6.getIcmpType() == ICMP6.NEIGHBOR_SOLICITATION) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| } |