Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | * or more contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. The ASF licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 17 | * under the License. |
Thomas Vachuska | 24c849c | 2014-10-27 09:53:05 -0700 | [diff] [blame] | 18 | */ |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 19 | |
| 20 | /** |
| 21 | * |
| 22 | */ |
| 23 | package org.onlab.packet; |
| 24 | |
| 25 | import java.nio.ByteBuffer; |
| 26 | import java.util.ArrayList; |
| 27 | import java.util.List; |
| 28 | |
| 29 | /** |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 30 | * |
| 31 | */ |
| 32 | public class LLDP extends BasePacket { |
| 33 | protected LLDPTLV chassisId; |
| 34 | protected LLDPTLV portId; |
| 35 | protected LLDPTLV ttl; |
| 36 | protected List<LLDPTLV> optionalTLVList; |
| 37 | protected short ethType; |
| 38 | |
| 39 | public LLDP() { |
| 40 | this.optionalTLVList = new ArrayList<LLDPTLV>(); |
| 41 | this.ethType = Ethernet.TYPE_LLDP; |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * @return the chassisId |
| 46 | */ |
| 47 | public LLDPTLV getChassisId() { |
| 48 | return this.chassisId; |
| 49 | } |
| 50 | |
| 51 | /** |
tom | 5f18cf3 | 2014-09-13 14:10:57 -0700 | [diff] [blame] | 52 | * @param chassis |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 53 | * the chassisId to set |
| 54 | */ |
| 55 | public LLDP setChassisId(final LLDPTLV chassis) { |
| 56 | this.chassisId = chassis; |
| 57 | return this; |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * @return the portId |
| 62 | */ |
| 63 | public LLDPTLV getPortId() { |
| 64 | return this.portId; |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * @param portId |
| 69 | * the portId to set |
| 70 | */ |
| 71 | public LLDP setPortId(final LLDPTLV portId) { |
| 72 | this.portId = portId; |
| 73 | return this; |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * @return the ttl |
| 78 | */ |
| 79 | public LLDPTLV getTtl() { |
| 80 | return this.ttl; |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * @param ttl |
| 85 | * the ttl to set |
| 86 | */ |
| 87 | public LLDP setTtl(final LLDPTLV ttl) { |
| 88 | this.ttl = ttl; |
| 89 | return this; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * @return the optionalTLVList |
| 94 | */ |
| 95 | public List<LLDPTLV> getOptionalTLVList() { |
| 96 | return this.optionalTLVList; |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * @param optionalTLVList |
| 101 | * the optionalTLVList to set |
| 102 | */ |
| 103 | public LLDP setOptionalTLVList(final List<LLDPTLV> optionalTLVList) { |
| 104 | this.optionalTLVList = optionalTLVList; |
| 105 | return this; |
| 106 | } |
| 107 | |
| 108 | @Override |
| 109 | public byte[] serialize() { |
| 110 | int length = 2 + this.chassisId.getLength() + 2 |
| 111 | + this.portId.getLength() + 2 + this.ttl.getLength() + 2; |
| 112 | for (final LLDPTLV tlv : this.optionalTLVList) { |
| 113 | length += 2 + tlv.getLength(); |
| 114 | } |
| 115 | |
| 116 | final byte[] data = new byte[length]; |
| 117 | final ByteBuffer bb = ByteBuffer.wrap(data); |
| 118 | bb.put(this.chassisId.serialize()); |
| 119 | bb.put(this.portId.serialize()); |
| 120 | bb.put(this.ttl.serialize()); |
| 121 | for (final LLDPTLV tlv : this.optionalTLVList) { |
| 122 | bb.put(tlv.serialize()); |
| 123 | } |
| 124 | bb.putShort((short) 0); // End of LLDPDU |
| 125 | |
| 126 | /* |
| 127 | * if (this.parent != null && this.parent instanceof Ethernet) { |
| 128 | * ((Ethernet) this.parent).setEtherType(this.ethType); } |
| 129 | */ |
| 130 | |
| 131 | return data; |
| 132 | } |
| 133 | |
| 134 | @Override |
| 135 | public IPacket deserialize(final byte[] data, final int offset, |
| 136 | final int length) { |
| 137 | final ByteBuffer bb = ByteBuffer.wrap(data, offset, length); |
| 138 | LLDPTLV tlv; |
| 139 | do { |
alshabib | 7911a05 | 2014-10-16 17:49:37 -0700 | [diff] [blame] | 140 | tlv = new LLDPOrganizationalTLV().deserialize(bb); |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 141 | |
| 142 | // if there was a failure to deserialize stop processing TLVs |
| 143 | if (tlv == null) { |
| 144 | break; |
| 145 | } |
| 146 | switch (tlv.getType()) { |
| 147 | case 0x0: |
| 148 | // can throw this one away, its just an end delimiter |
| 149 | break; |
| 150 | case 0x1: |
| 151 | this.chassisId = tlv; |
| 152 | break; |
| 153 | case 0x2: |
| 154 | this.portId = tlv; |
| 155 | break; |
| 156 | case 0x3: |
| 157 | this.ttl = tlv; |
| 158 | break; |
alshabib | 7911a05 | 2014-10-16 17:49:37 -0700 | [diff] [blame] | 159 | |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 160 | default: |
| 161 | this.optionalTLVList.add(tlv); |
| 162 | break; |
| 163 | } |
| 164 | } while (tlv.getType() != 0 && bb.hasRemaining()); |
| 165 | return this; |
| 166 | } |
| 167 | |
| 168 | /* |
| 169 | * (non-Javadoc) |
| 170 | * |
| 171 | * @see java.lang.Object#hashCode() |
| 172 | */ |
| 173 | @Override |
| 174 | public int hashCode() { |
| 175 | final int prime = 883; |
| 176 | int result = super.hashCode(); |
| 177 | result = prime * result |
| 178 | + (this.chassisId == null ? 0 : this.chassisId.hashCode()); |
| 179 | result = prime * result + this.optionalTLVList.hashCode(); |
| 180 | result = prime * result |
| 181 | + (this.portId == null ? 0 : this.portId.hashCode()); |
| 182 | result = prime * result + (this.ttl == null ? 0 : this.ttl.hashCode()); |
| 183 | return result; |
| 184 | } |
| 185 | |
| 186 | /* |
| 187 | * (non-Javadoc) |
| 188 | * |
| 189 | * @see java.lang.Object#equals(java.lang.Object) |
| 190 | */ |
| 191 | @Override |
| 192 | public boolean equals(final Object obj) { |
| 193 | if (this == obj) { |
| 194 | return true; |
| 195 | } |
| 196 | if (!super.equals(obj)) { |
| 197 | return false; |
| 198 | } |
| 199 | if (!(obj instanceof LLDP)) { |
| 200 | return false; |
| 201 | } |
| 202 | final LLDP other = (LLDP) obj; |
| 203 | if (this.chassisId == null) { |
| 204 | if (other.chassisId != null) { |
| 205 | return false; |
| 206 | } |
| 207 | } else if (!this.chassisId.equals(other.chassisId)) { |
| 208 | return false; |
| 209 | } |
| 210 | if (!this.optionalTLVList.equals(other.optionalTLVList)) { |
| 211 | return false; |
| 212 | } |
| 213 | if (this.portId == null) { |
| 214 | if (other.portId != null) { |
| 215 | return false; |
| 216 | } |
| 217 | } else if (!this.portId.equals(other.portId)) { |
| 218 | return false; |
| 219 | } |
| 220 | if (this.ttl == null) { |
| 221 | if (other.ttl != null) { |
| 222 | return false; |
| 223 | } |
| 224 | } else if (!this.ttl.equals(other.ttl)) { |
| 225 | return false; |
| 226 | } |
| 227 | return true; |
| 228 | } |
| 229 | } |