| /* |
| * Copyright 2017-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.opencord.dhcpl2relay.packet; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.nio.charset.StandardCharsets; |
| |
| /** |
| * Represents the DHCP Option 82 information. Currently only supports |
| * sub option 1 (agent-circuit-id) and 2 (agent=-relay-id). |
| */ |
| public class DhcpOption82 { |
| |
| private String agentCircuitId = null; |
| private String agentRemoteId = null; |
| |
| public DhcpOption82() { |
| |
| } |
| |
| public void setAgentCircuitId(String value) { |
| this.agentCircuitId = value; |
| } |
| |
| /** |
| * |
| * @return agentCircuitId |
| */ |
| public String getAgentCircuitId() { |
| return this.agentCircuitId; |
| } |
| |
| /** |
| * sets AgentRemoteId. |
| * @param value Value to be set |
| */ |
| public void setAgentRemoteId(String value) { |
| this.agentRemoteId = value; |
| } |
| |
| /** |
| * |
| * @return agentRemoteId |
| */ |
| public String getAgentRemoteId() { |
| return this.agentRemoteId; |
| } |
| |
| /** |
| * |
| * @return length of option 82. |
| */ |
| public byte length() { |
| int length = 0; |
| |
| // +2 below for sub option ID and length of sub option |
| if (agentCircuitId != null) { |
| length += agentCircuitId.length() + 2; |
| } |
| if (agentRemoteId != null) { |
| length += agentRemoteId.length() + 2; |
| } |
| return (byte) length; |
| } |
| |
| /** |
| * Returns the representation of the option 82 specification as a byte |
| * array. |
| * @return returns byte array |
| */ |
| public byte[] toByteArray() { |
| ByteArrayOutputStream buf = new ByteArrayOutputStream(); |
| |
| // Add sub option if set |
| if (agentCircuitId != null) { |
| buf.write((byte) 1); |
| buf.write((byte) agentCircuitId.length()); |
| byte[] bytes = agentCircuitId.getBytes(StandardCharsets.UTF_8); |
| buf.write(bytes, 0, bytes.length); |
| } |
| |
| // Add sub option if set |
| if (agentRemoteId != null) { |
| buf.write((byte) 2); |
| buf.write((byte) agentRemoteId.length()); |
| byte[] bytes = agentRemoteId.getBytes(StandardCharsets.UTF_8); |
| buf.write(bytes, 0, bytes.length); |
| } |
| |
| return buf.toByteArray(); |
| } |
| |
| } |