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annotate src/ch/ethz/ssh2/ServerConnection.java @ 293:e730b8a5321e ganymed

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author Carl Byington <carl@five-ten-sg.com>
date Fri, 18 Jul 2014 20:39:28 -0700
parents d2ee20d9dff1
children ab3a99f11a36
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1 /*
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2 * Copyright (c) 2012-2013 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
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6 package ch.ethz.ssh2;
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7
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8 import java.io.CharArrayWriter;
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9 import java.io.File;
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10 import java.io.FileReader;
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11 import java.io.IOException;
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12 import java.net.Socket;
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13
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14 import ch.ethz.ssh2.crypto.CryptoWishList;
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15 import ch.ethz.ssh2.crypto.PEMDecoder;
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16 import ch.ethz.ssh2.server.ServerConnectionState;
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17 import java.security.KeyPair;
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18 import java.security.PrivateKey;
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19 import java.security.interfaces.DSAPrivateKey;
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20 import java.security.interfaces.ECPrivateKey;
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21 import java.security.interfaces.RSAPrivateKey;
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22 import ch.ethz.ssh2.transport.ServerTransportManager;
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23
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24 /**
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25 * A server-side SSH-2 connection.
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26 *
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27 * @author Christian
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28 *
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29 */
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30 public class ServerConnection
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31 {
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32 /**
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33 * The softwareversion presented to the SSH-2 client.
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34 */
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35 private String softwareversion = String.format("Ganymed_SSHD_%s", Version.getSpecification());
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36
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37 private final ServerConnectionState state = new ServerConnectionState(this);
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38
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39 /**
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40 * Creates a new <code>ServerConnection</code> that will communicate
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41 * with the client over the given <code>Socket</code>.
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42 * <p>
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43 * Note: you need to call {@link #connect()} or {@link #connect(int)} to
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44 * perform the initial handshake and establish the encrypted communication.
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45 *
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46 * @see #connect(int)
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47 *
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48 * @param s The socket
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49 */
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50 public ServerConnection(Socket s)
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51 {
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52 this(s, null, null);
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53 }
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54
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55 public ServerConnection(Socket s, String softwareversion) {
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56 this(s, null, null);
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57 this.softwareversion = softwareversion;
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58 }
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59
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60 /**
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61 * Creates a new <code>ServerConnection</code> that will communicate
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62 * with the client over the given <code>Socket</code>.
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63 * <p>
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64 * Note: you need to call {@link #connect()} or {@link #connect(int)} to
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65 * perform the initial handshake and establish the encrypted communication.
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66 * <p>
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67 * Please read the javadoc for the {@link #connect(int)} method.
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68 *
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69 * @see #connect(int)
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70 *
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71 * @param s The socket
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72 * @param dsa_key The DSA hostkey, may be <code>NULL</code>
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73 * @param rsa_key The RSA hostkey, may be <code>NULL</code>
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74 */
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75 public ServerConnection(Socket s, KeyPair dsa_key, KeyPair rsa_key)
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76 {
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77 state.s = s;
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78 state.softwareversion = softwareversion;
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79 state.next_dsa_key = dsa_key;
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80 state.next_rsa_key = rsa_key;
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81 fixCryptoWishList(state.next_cryptoWishList, state.next_dsa_key, state.next_rsa_key);
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82 }
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83
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84 /**
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85 * Establish the connection and block until the first handshake has completed.
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86 * <p>
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87 * Note: this is a wrapper that calls <code>connect(0)</code> (i.e., connect with no timeout).
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88 * <p>
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89 * Please read the javadoc for the {@link #connect(int)} method.
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90 *
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91 * @see #connect(int)
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92 *
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93 * @throws IOException
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94 */
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95 public synchronized void connect() throws IOException
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96 {
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97 connect(0);
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98 }
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99
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100 /**
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101 * Establish the connection and block until the first handshake has completed.
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102 * <p>
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103 * Note 1: either a DSA or a RSA (or both) hostkey must be set before calling this method.
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104 * <p>
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105 * Note 2: You must set the callbacks for authentication ({@link #setAuthenticationCallback(ServerAuthenticationCallback)})
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106 * and connection events ({@link #setServerConnectionCallback(ServerConnectionCallback)}).
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107 *
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108 * @see #setPEMHostKey(char[], String)
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109 * @see #setPEMHostKey(File, String)
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110 * @see #setRsaHostKey(RSAPrivateKey)
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111 * @see #setDsaHostKey(DSAPrivateKey)
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112 *
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113 * @param timeout_milliseconds Timeout in milliseconds, <code>0</code> means no timeout.
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114 * @throws IOException
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115 */
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116 public synchronized void connect(int timeout_milliseconds) throws IOException
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117 {
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118 synchronized (state)
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119 {
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120 if (state.cb_conn == null)
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121 throw new IllegalStateException("The callback for connection events has not been set.");
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122
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123 if (state.cb_auth == null)
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124 throw new IllegalStateException("The callback for authentication events has not been set.");
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125
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126 if (state.tm != null)
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127 throw new IllegalStateException("The initial handshake has already been started.");
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128
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129 if ((state.next_dsa_key == null) && (state.next_rsa_key == null))
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130 throw new IllegalStateException("Neither a RSA nor a DSA host key has been specified!");
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131
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132 state.tm = new ServerTransportManager(state.s);
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133 }
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134
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135 state.tm.connect(state);
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136
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137 /* Wait until first KEX has finished */
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138
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139 state.tm.getConnectionInfo(1);
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140 }
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141
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142 /**
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143 * Retrieve the underlying socket.
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144 *
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145 * @return the socket that has been passed to the constructor.
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146 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
147 public Socket getSocket()
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
148 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
149 return state.s;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
150 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
151
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
152 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
153 * Force an asynchronous key re-exchange (the call does not block). The
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
154 * latest values set for MAC, Cipher and DH group exchange parameters will
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
155 * be used. If a key exchange is currently in progress, then this method has
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
156 * the only effect that the so far specified parameters will be used for the
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
157 * next (client driven) key exchange. You may call this method only after
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
158 * the initial key exchange has been established.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
159 * <p>
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
160 * Note: This implementation will never start automatically a key exchange (other than the initial one)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
161 * unless you or the connected SSH-2 client ask for it.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
162 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
163 * @throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
164 * In case of any failure behind the scenes.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
165 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
166 public synchronized void forceKeyExchange() throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
167 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
168 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
169 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
170 if (state.tm == null)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
171 throw new IllegalStateException(
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
172 "Cannot force another key exchange, you need to start the key exchange first.");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
173
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
174 state.tm.forceKeyExchange(state.next_cryptoWishList, null, state.next_dsa_key, state.next_rsa_key);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
175 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
176 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
177
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
178 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
179 * Returns a {@link ConnectionInfo} object containing the details of
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
180 * the connection. May be called as soon as the first key exchange has been
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
181 * started. The method blocks in case the first key exchange has not been completed.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
182 * <p>
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
183 * Note: upon return of this method, authentication may still be pending.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
184 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
185 * @return A {@link ConnectionInfo} object.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
186 * @throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
187 * In case of any failure behind the scenes; e.g., first key exchange was aborted.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
188 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
189 public synchronized ConnectionInfo getConnectionInfo() throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
190 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
191 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
192 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
193 if (state.tm == null)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
194 throw new IllegalStateException(
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
195 "Cannot get details of connection, you need to start the key exchange first.");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
196 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
197
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
198 return state.tm.getConnectionInfo(1);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
199 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
200
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
201 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
202 * Change the current DSA hostkey. Either a DSA or RSA private key must be set for a successful handshake with
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
203 * the client.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
204 * <p>
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
205 * Note: You can change an existing DSA hostkey after the initial kex exchange (the new value will
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
206 * be used during the next server initiated key exchange), but you cannot remove (i.e., set to <code>null</code>) the
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
207 * current DSA key, otherwise the next key exchange may fail in case the client supports only DSA hostkeys.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
208 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
209 * @param dsa_hostkey
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
210 */
287
db9b028016de start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 281
diff changeset
211 public synchronized void setDsaHostKey(KeyPair dsa_hostkey)
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
212 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
213 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
214 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
215 if ((dsa_hostkey == null) && (state.next_dsa_key != null) && (state.tm != null))
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
216 throw new IllegalStateException("Cannot remove DSA hostkey after first key exchange.");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
217
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
218 state.next_dsa_key = dsa_hostkey;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
219 fixCryptoWishList(state.next_cryptoWishList, state.next_dsa_key, state.next_rsa_key);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
220 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
221 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
222
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
223 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
224 * Change the current RSA hostkey. Either a DSA or RSA private key must be set for a successful handshake with
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
225 * the client.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
226 * <p>
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
227 * Note: You can change an existing RSA hostkey after the initial kex exchange (the new value will
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
228 * be used during the next server initiated key exchange), but you cannot remove (i.e., set to <code>null</code>) the
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
229 * current RSA key, otherwise the next key exchange may fail in case the client supports only RSA hostkeys.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
230 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
231 * @param rsa_hostkey
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
232 */
287
db9b028016de start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 281
diff changeset
233 public synchronized void setRsaHostKey(KeyPair rsa_hostkey)
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
234 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
235 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
236 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
237 if ((rsa_hostkey == null) && (state.next_rsa_key != null) && (state.tm != null))
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
238 throw new IllegalStateException("Cannot remove RSA hostkey after first key exchange.");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
239
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
240 state.next_rsa_key = rsa_hostkey;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
241 fixCryptoWishList(state.next_cryptoWishList, state.next_dsa_key, state.next_rsa_key);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
242 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
243 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
244
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
245 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
246 * Utility method that loads a PEM based hostkey (either RSA or DSA based) and
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
247 * calls either <code>setRsaHostKey()</code> or <code>setDsaHostKey()</code>.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
248 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
249 * @param pemdata The PEM data
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
250 * @param password Password, may be null in case the PEM data is not password protected
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
251 * @throws IOException In case of any error.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
252 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
253 public void setPEMHostKey(char[] pemdata, String password) throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
254 {
289
d2ee20d9dff1 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 287
diff changeset
255 KeyPair pair = PEMDecoder.decode(pemdata, password);
d2ee20d9dff1 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 287
diff changeset
256 PrivateKey key = pair.getPrivate();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
257
289
d2ee20d9dff1 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 287
diff changeset
258 if (key instanceof DSAPrivateKey) setDsaHostKey(pair);
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
259
289
d2ee20d9dff1 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 287
diff changeset
260 if (key instanceof RSAPrivateKey) setRsaHostKey(pair);
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
261 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
262
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
263 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
264 * Utility method that loads a hostkey from a PEM file (either RSA or DSA based) and
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
265 * calls either <code>setRsaHostKey()</code> or <code>setDsaHostKey()</code>.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
266 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
267 * @param pemFile The PEM file
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
268 * @param password Password, may be null in case the PEM file is not password protected
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
269 * @throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
270 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
271 public void setPEMHostKey(File pemFile, String password) throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
272 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
273 if (pemFile == null)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
274 throw new IllegalArgumentException("pemfile argument is null");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
275
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
276 char[] buff = new char[256];
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
277
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
278 CharArrayWriter cw = new CharArrayWriter();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
279
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
280 FileReader fr = new FileReader(pemFile);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
281
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
282 while (true)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
283 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
284 int len = fr.read(buff);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
285 if (len < 0)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
286 break;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
287 cw.write(buff, 0, len);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
288 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
289
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
290 fr.close();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
291
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
292 setPEMHostKey(cw.toCharArray(), password);
91a31873c42a start conversion from trilead to ganymed
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diff changeset
293 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
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diff changeset
294
289
d2ee20d9dff1 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 287
diff changeset
295 private void fixCryptoWishList(CryptoWishList next_cryptoWishList, KeyPair next_dsa_key, KeyPair next_rsa_key)
273
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
296 {
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
297 if ((next_dsa_key != null) && (next_rsa_key != null))
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
298 next_cryptoWishList.serverHostKeyAlgorithms = new String[] { "ssh-rsa", "ssh-dss" };
91a31873c42a start conversion from trilead to ganymed
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diff changeset
299 else if (next_dsa_key != null)
91a31873c42a start conversion from trilead to ganymed
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diff changeset
300 next_cryptoWishList.serverHostKeyAlgorithms = new String[] { "ssh-dss" };
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
301 else if (next_rsa_key != null)
91a31873c42a start conversion from trilead to ganymed
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diff changeset
302 next_cryptoWishList.serverHostKeyAlgorithms = new String[] { "ssh-rsa" };
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
303 else
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
304 next_cryptoWishList.serverHostKeyAlgorithms = new String[0];
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
305 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
306
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
307 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
308 * Callback interface with methods that will be called upon events
91a31873c42a start conversion from trilead to ganymed
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diff changeset
309 * generated by the client (e.g., client opens a new Session which results in a <code>ServerSession</code>).
91a31873c42a start conversion from trilead to ganymed
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diff changeset
310 * <p>
91a31873c42a start conversion from trilead to ganymed
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diff changeset
311 * Note: This must be set before the first handshake.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
312 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
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313 * @param cb The callback implementation
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
314 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
315 public synchronized void setServerConnectionCallback(ServerConnectionCallback cb)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
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diff changeset
316 {
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
317 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
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diff changeset
318 {
91a31873c42a start conversion from trilead to ganymed
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diff changeset
319 state.cb_conn = cb;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
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320 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
321 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
322
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
323 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
324 * Callback interface with methods that will be called upon authentication events.
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
325 * <p>
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
326 * Note: This must be set before the first handshake.
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
327 *
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
328 * @param cb The callback implementation
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
329 */
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parents:
diff changeset
330 public synchronized void setAuthenticationCallback(ServerAuthenticationCallback cb)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
331 {
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
332 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
333 {
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
334 state.cb_auth = cb;
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
335 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
336 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
337
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
338 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
339 * Close the connection to the SSH-2 server. All assigned sessions will be
91a31873c42a start conversion from trilead to ganymed
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diff changeset
340 * closed, too. Can be called at any time. Don't forget to call this once
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
341 * you don't need a connection anymore - otherwise the receiver thread may
91a31873c42a start conversion from trilead to ganymed
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342 * run forever.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
343 */
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
344 public void close()
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
345 {
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
346 synchronized (state)
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Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
347 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
348 if (state.cm != null)
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
349 state.cm.closeAllChannels();
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
350
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
351 if (state.tm != null)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
352 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
353 state.tm.close();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
354 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
355 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
356 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
357
91a31873c42a start conversion from trilead to ganymed
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parents:
diff changeset
358 public void close(IOException t)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
359 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
360 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
361 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
362 if (state.cm != null)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
363 state.cm.closeAllChannels();
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
364
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
365 if (state.tm != null)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
366 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
367 state.tm.close(t);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
368 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
369 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
370 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
371 }