Home | History | Annotate | Download | only in dhcp 
      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