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
17package android.net.dhcp;
18
19import java.net.InetAddress;
20import java.nio.ByteBuffer;
21import java.util.List;
22
23/**
24 * This class defines the "next steps" which occur after a given DHCP
25 * packet has been received.
26 */
27interface DhcpStateMachine {
28    /**
29     * Signals that an offer packet has been received with the specified
30     * parameters.
31     */
32    public void onOfferReceived(boolean broadcast, int transactionId,
33        byte[] myMac, InetAddress offeredIpAddress,
34        InetAddress serverIpAddress);
35
36    /**
37     * Signals that a NAK packet has been received.
38     */
39    public void onNakReceived();
40
41    /**
42     * Signals that the final ACK has been received from the server.
43     */
44    public void onAckReceived(InetAddress myIpAddress, InetAddress myNetMask,
45        InetAddress myGateway, List<InetAddress> myDnsServers,
46        InetAddress myDhcpServer, int leaseTime);
47
48    /**
49     * Signals that a client's DISCOVER packet has been received with the
50     * specified parameters.
51     */
52    public void onDiscoverReceived(boolean broadcast, int transactionId,
53        byte[] clientMac, byte[] requestedParameterList);
54
55    /**
56     * Signals that a client's REQUEST packet has been received with the
57     * specified parameters.
58     */
59    public void onRequestReceived(boolean broadcast, int transactionId,
60        byte[] clientMac, InetAddress requestedIp, byte[] requestedParams,
61        String clientHostName);
62
63    /**
64     * Signals that a client's INFORM packet has been received with the
65     * specified parameters.
66     */
67    public void onInformReceived(int transactionId, byte[] clientMac,
68        InetAddress preassignedIp, byte[] requestedParams);
69
70    /**
71     * Signals that a client's DECLINE packet has been received with the
72     * specified parameters.
73     */
74    public void onDeclineReceived(byte[] clientMac, InetAddress declinedIp);
75}
76