1 /* 2 * Copyright (C) 2010 The Android Open Source Project 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 17 package android.net.dhcp; 18 19 import java.net.InetAddress; 20 import java.util.List; 21 22 /** 23 * This class defines the "next steps" which occur after a given DHCP 24 * packet has been received. 25 */ 26 interface DhcpStateMachine { 27 /** 28 * Signals that an offer packet has been received with the specified 29 * parameters. 30 */ 31 public void onOfferReceived(boolean broadcast, int transactionId, 32 byte[] myMac, InetAddress offeredIpAddress, 33 InetAddress serverIpAddress); 34 35 /** 36 * Signals that a NAK packet has been received. 37 */ 38 public void onNakReceived(); 39 40 /** 41 * Signals that the final ACK has been received from the server. 42 */ 43 public void onAckReceived(InetAddress myIpAddress, InetAddress myNetMask, 44 InetAddress myGateway, List<InetAddress> myDnsServers, 45 InetAddress myDhcpServer, int leaseTime); 46 47 /** 48 * Signals that a client's DISCOVER packet has been received with the 49 * specified parameters. 50 */ 51 public void onDiscoverReceived(boolean broadcast, int transactionId, 52 byte[] clientMac, byte[] requestedParameterList); 53 54 /** 55 * Signals that a client's REQUEST packet has been received with the 56 * specified parameters. 57 */ 58 public void onRequestReceived(boolean broadcast, int transactionId, 59 byte[] clientMac, InetAddress requestedIp, byte[] requestedParams, 60 String clientHostName); 61 62 /** 63 * Signals that a client's INFORM packet has been received with the 64 * specified parameters. 65 */ 66 public void onInformReceived(int transactionId, byte[] clientMac, 67 InetAddress preassignedIp, byte[] requestedParams); 68 69 /** 70 * Signals that a client's DECLINE packet has been received with the 71 * specified parameters. 72 */ 73 public void onDeclineReceived(byte[] clientMac, InetAddress declinedIp); 74 } 75