Charles Chan | b60452c | 2018-07-24 11:58:08 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2018-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onlab.packet.lacp; |
| 17 | |
| 18 | import org.onlab.packet.Deserializer; |
| 19 | import org.onlab.packet.MacAddress; |
| 20 | |
| 21 | import java.nio.ByteBuffer; |
| 22 | import java.util.Objects; |
| 23 | |
| 24 | import static com.google.common.base.MoreObjects.toStringHelper; |
| 25 | import static org.onlab.packet.PacketUtils.checkInput; |
| 26 | |
| 27 | /** |
| 28 | * Represents LACP ActorInfo or PartnerInfo information. |
| 29 | */ |
| 30 | public class LacpBaseTlv extends LacpTlv { |
| 31 | public static final byte LENGTH = 20; |
| 32 | private static final byte[] RESERVED = new byte[3]; |
| 33 | |
| 34 | private short systemPriority; |
| 35 | private MacAddress systemMac; |
| 36 | private short key; |
| 37 | private short portPriority; |
| 38 | private short port; |
| 39 | private LacpState state; |
| 40 | |
| 41 | /** |
| 42 | * Gets system priority. |
| 43 | * |
| 44 | * @return system priority |
| 45 | */ |
| 46 | public short getSystemPriority() { |
| 47 | return systemPriority; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Sets system priority. |
| 52 | * |
| 53 | * @param systemPriority system priority |
| 54 | * @return this |
| 55 | */ |
| 56 | public LacpBaseTlv setSystemPriority(short systemPriority) { |
| 57 | this.systemPriority = systemPriority; |
| 58 | return this; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Gets system MAC address. |
| 63 | * |
| 64 | * @return system MAC address |
| 65 | */ |
| 66 | public MacAddress getSystemMac() { |
| 67 | return systemMac; |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * Sets system MAC address. |
| 72 | * |
| 73 | * @param systemMac system MAC |
| 74 | * @return this |
| 75 | */ |
| 76 | public LacpBaseTlv setSystemMac(MacAddress systemMac) { |
| 77 | this.systemMac = systemMac; |
| 78 | return this; |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Gets key. |
| 83 | * |
| 84 | * @return key |
| 85 | */ |
| 86 | public short getKey() { |
| 87 | return key; |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Sets key. |
| 92 | * |
| 93 | * @param key key |
| 94 | * @return this |
| 95 | */ |
| 96 | public LacpBaseTlv setKey(short key) { |
| 97 | this.key = key; |
| 98 | return this; |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Gets port priority. |
| 103 | * |
| 104 | * @return port priority |
| 105 | */ |
| 106 | public short getPortPriority() { |
| 107 | return portPriority; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Sets port priority. |
| 112 | * |
| 113 | * @param portPriority port priority |
| 114 | * @return this |
| 115 | */ |
| 116 | public LacpBaseTlv setPortPriority(short portPriority) { |
| 117 | this.portPriority = portPriority; |
| 118 | return this; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Gets port. |
| 123 | * |
| 124 | * @return port |
| 125 | */ |
| 126 | public short getPort() { |
| 127 | return port; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Sets port. |
| 132 | * |
| 133 | * @param port port |
| 134 | * @return this |
| 135 | */ |
| 136 | public LacpBaseTlv setPort(short port) { |
| 137 | this.port = port; |
| 138 | return this; |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Gets state. |
| 143 | * |
| 144 | * @return state |
| 145 | */ |
| 146 | public LacpState getState() { |
| 147 | return state; |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Sets state. |
| 152 | * |
| 153 | * @param state state |
| 154 | * @return this |
| 155 | */ |
| 156 | public LacpBaseTlv setState(byte state) { |
| 157 | this.state = new LacpState(state); |
| 158 | return this; |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * Deserializer function for LacpBaseTlv packets. |
| 163 | * |
| 164 | * @return deserializer function |
| 165 | */ |
| 166 | public static Deserializer<LacpBaseTlv> deserializer() { |
| 167 | return (data, offset, length) -> { |
| 168 | checkInput(data, offset, length, LENGTH - HEADER_LENGTH); |
| 169 | |
| 170 | LacpBaseTlv lacpBaseTlv = new LacpBaseTlv(); |
| 171 | ByteBuffer bb = ByteBuffer.wrap(data, offset, length); |
| 172 | |
| 173 | lacpBaseTlv.setSystemPriority(bb.getShort()); |
| 174 | byte[] mac = new byte[6]; |
| 175 | bb.get(mac); |
| 176 | lacpBaseTlv.setSystemMac(MacAddress.valueOf(mac)); |
| 177 | lacpBaseTlv.setKey(bb.getShort()); |
| 178 | lacpBaseTlv.setPortPriority(bb.getShort()); |
| 179 | lacpBaseTlv.setPort(bb.getShort()); |
| 180 | lacpBaseTlv.setState(bb.get()); |
| 181 | |
| 182 | return lacpBaseTlv; |
| 183 | }; |
| 184 | } |
| 185 | |
| 186 | @Override |
| 187 | public byte[] serialize() { |
| 188 | final byte[] data = new byte[LENGTH - HEADER_LENGTH]; |
| 189 | |
| 190 | final ByteBuffer bb = ByteBuffer.wrap(data); |
| 191 | bb.putShort(this.systemPriority); |
| 192 | bb.put(this.systemMac.toBytes()); |
| 193 | bb.putShort(this.key); |
| 194 | bb.putShort(this.portPriority); |
| 195 | bb.putShort(this.port); |
| 196 | bb.put(this.state.toByte()); |
| 197 | bb.put(RESERVED); |
| 198 | |
| 199 | return data; |
| 200 | } |
| 201 | |
| 202 | @Override |
| 203 | public boolean equals(Object obj) { |
| 204 | if (this == obj) { |
| 205 | return true; |
| 206 | } |
| 207 | if (!super.equals(obj)) { |
| 208 | return false; |
| 209 | } |
| 210 | if (!(obj instanceof LacpBaseTlv)) { |
| 211 | return false; |
| 212 | } |
| 213 | final LacpBaseTlv other = (LacpBaseTlv) obj; |
| 214 | return systemPriority == other.systemPriority && |
| 215 | key == other.key && |
| 216 | portPriority == other.portPriority && |
| 217 | port == other.port && |
| 218 | Objects.equals(state, other.state) && |
| 219 | Objects.equals(systemMac, other.systemMac); |
| 220 | } |
| 221 | |
| 222 | @Override |
| 223 | public int hashCode() { |
| 224 | return Objects.hash(super.hashCode(), systemPriority, systemMac, key, |
| 225 | portPriority, port, state); |
| 226 | } |
| 227 | |
| 228 | @Override |
| 229 | public String toString() { |
| 230 | return toStringHelper(getClass()) |
| 231 | .add("systemPriority", Short.toString(systemPriority)) |
| 232 | .add("systemMac", systemMac.toString()) |
| 233 | .add("key", Short.toString(key)) |
| 234 | .add("portPriority", Short.toString(portPriority)) |
| 235 | .add("port", Short.toString(port)) |
| 236 | .add("state", state.toString()) |
| 237 | .toString(); |
| 238 | } |
| 239 | } |