273
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1 /*
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2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
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3 * Please refer to the LICENSE.txt for licensing details.
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4 */
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5 package ch.ethz.ssh2.packets;
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6
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7 import java.io.IOException;
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8
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9 import ch.ethz.ssh2.PacketFormatException;
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10 import ch.ethz.ssh2.PacketTypeException;
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11
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12 /**
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13 * @author Christian Plattner
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14 * @version $Id: PacketDisconnect.java 160 2014-05-01 14:30:26Z dkocher@sudo.ch $
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15 */
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16 public final class PacketDisconnect {
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17
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18 public enum Reason {
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19 SSH_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT,
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20 SSH_DISCONNECT_PROTOCOL_ERROR,
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21 SSH_DISCONNECT_KEY_EXCHANGE_FAILED,
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22 SSH_DISCONNECT_RESERVED,
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23 SSH_DISCONNECT_MAC_ERROR,
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24 SSH_DISCONNECT_COMPRESSION_ERROR,
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25 SSH_DISCONNECT_SERVICE_NOT_AVAILABLE,
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26 SSH_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED,
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27 SSH_DISCONNECT_HOST_KEY_NOT_VERIFIABLE,
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28 SSH_DISCONNECT_CONNECTION_LOST,
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29 SSH_DISCONNECT_BY_APPLICATION,
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30 SSH_DISCONNECT_TOO_MANY_CONNECTIONS,
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31 SSH_DISCONNECT_AUTH_CANCELLED_BY_USER,
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32 SSH_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE,
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33 SSH_DISCONNECT_ILLEGAL_USER_NAME
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34 }
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35
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36 private final byte[] payload;
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37
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38 private final Reason reason;
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39
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40 private final String message;
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41
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42 public PacketDisconnect(byte payload[]) throws IOException {
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43 this.payload = payload;
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44 TypesReader tr = new TypesReader(payload);
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45 int packet_type = tr.readByte();
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46
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307
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47 if (packet_type != Packets.SSH_MSG_DISCONNECT) {
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48 throw new PacketTypeException(packet_type);
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49 }
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307
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50
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51 reason = PacketDisconnect.Reason.values()[tr.readUINT32()];
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52 message = tr.readString();
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53 String lang = tr.readString();
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54
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307
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55 if (tr.remain() != 0) {
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56 throw new PacketFormatException(String.format("Padding in %s", Packets.getMessageName(packet_type)));
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57 }
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58 }
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59
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60 public PacketDisconnect(Reason reason, String desc) {
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61 this.reason = reason;
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62 this.message = desc;
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63 TypesWriter tw = new TypesWriter();
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64 tw.writeByte(Packets.SSH_MSG_DISCONNECT);
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65 tw.writeUINT32(reason.ordinal());
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66 tw.writeString(desc);
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67 tw.writeString("");
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68 payload = tw.getBytes();
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69 }
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70
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71 public Reason getReason() {
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72 return reason;
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73 }
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74
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75 public String getMessage() {
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76 return message;
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77 }
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78
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79 public byte[] getPayload() {
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80 return payload;
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81 }
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82 }
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