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annotate src/ch/ethz/ssh2/ServerConnection.java @ 273:91a31873c42a ganymed

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start conversion from trilead to ganymed
author Carl Byington <carl@five-ten-sg.com>
date Fri, 18 Jul 2014 11:21:46 -0700
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children d7e088fa2123
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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 ch.ethz.ssh2.signature.DSAPrivateKey;
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18 import ch.ethz.ssh2.signature.RSAPrivateKey;
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19 import ch.ethz.ssh2.transport.ServerTransportManager;
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20
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21 /**
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22 * A server-side SSH-2 connection.
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23 *
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24 * @author Christian
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25 *
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26 */
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27 public class ServerConnection
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28 {
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29 /**
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30 * The softwareversion presented to the SSH-2 client.
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31 */
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32 private String softwareversion = String.format("Ganymed_SSHD_%s", Version.getSpecification());
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33
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34 private final ServerConnectionState state = new ServerConnectionState(this);
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35
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36 /**
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37 * Creates a new <code>ServerConnection</code> that will communicate
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38 * with the client over the given <code>Socket</code>.
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39 * <p>
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40 * Note: you need to call {@link #connect()} or {@link #connect(int)} to
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41 * perform the initial handshake and establish the encrypted communication.
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42 *
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43 * @see #connect(int)
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44 *
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45 * @param s The socket
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46 */
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47 public ServerConnection(Socket s)
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48 {
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49 this(s, null, null);
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50 }
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51
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52 public ServerConnection(Socket s, String softwareversion) {
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53 this(s, null, null);
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54 this.softwareversion = softwareversion;
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55 }
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56
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57 /**
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58 * Creates a new <code>ServerConnection</code> that will communicate
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59 * with the client over the given <code>Socket</code>.
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60 * <p>
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61 * Note: you need to call {@link #connect()} or {@link #connect(int)} to
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62 * perform the initial handshake and establish the encrypted communication.
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63 * <p>
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64 * Please read the javadoc for the {@link #connect(int)} method.
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65 *
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66 * @see #connect(int)
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67 *
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68 * @param s The socket
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69 * @param dsa_key The DSA hostkey, may be <code>NULL</code>
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70 * @param rsa_key The RSA hostkey, may be <code>NULL</code>
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71 */
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72 public ServerConnection(Socket s, DSAPrivateKey dsa_key, RSAPrivateKey rsa_key)
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73 {
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74 state.s = s;
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75 state.softwareversion = softwareversion;
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76 state.next_dsa_key = dsa_key;
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77 state.next_rsa_key = rsa_key;
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78 fixCryptoWishList(state.next_cryptoWishList, state.next_dsa_key, state.next_rsa_key);
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79 }
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80
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81 /**
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82 * Establish the connection and block until the first handshake has completed.
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83 * <p>
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84 * Note: this is a wrapper that calls <code>connect(0)</code> (i.e., connect with no timeout).
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85 * <p>
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86 * Please read the javadoc for the {@link #connect(int)} method.
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87 *
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88 * @see #connect(int)
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89 *
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90 * @throws IOException
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91 */
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92 public synchronized void connect() throws IOException
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93 {
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94 connect(0);
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95 }
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96
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97 /**
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98 * Establish the connection and block until the first handshake has completed.
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99 * <p>
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100 * Note 1: either a DSA or a RSA (or both) hostkey must be set before calling this method.
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101 * <p>
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102 * Note 2: You must set the callbacks for authentication ({@link #setAuthenticationCallback(ServerAuthenticationCallback)})
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103 * and connection events ({@link #setServerConnectionCallback(ServerConnectionCallback)}).
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104 *
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105 * @see #setPEMHostKey(char[], String)
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106 * @see #setPEMHostKey(File, String)
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107 * @see #setRsaHostKey(RSAPrivateKey)
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108 * @see #setDsaHostKey(DSAPrivateKey)
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109 *
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110 * @param timeout_milliseconds Timeout in milliseconds, <code>0</code> means no timeout.
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111 * @throws IOException
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112 */
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113 public synchronized void connect(int timeout_milliseconds) throws IOException
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114 {
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115 synchronized (state)
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116 {
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117 if (state.cb_conn == null)
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118 throw new IllegalStateException("The callback for connection events has not been set.");
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119
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120 if (state.cb_auth == null)
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121 throw new IllegalStateException("The callback for authentication events has not been set.");
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122
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123 if (state.tm != null)
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124 throw new IllegalStateException("The initial handshake has already been started.");
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125
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126 if ((state.next_dsa_key == null) && (state.next_rsa_key == null))
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127 throw new IllegalStateException("Neither a RSA nor a DSA host key has been specified!");
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128
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129 state.tm = new ServerTransportManager(state.s);
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130 }
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131
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132 state.tm.connect(state);
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133
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134 /* Wait until first KEX has finished */
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135
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136 state.tm.getConnectionInfo(1);
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137 }
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138
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139 /**
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140 * Retrieve the underlying socket.
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141 *
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142 * @return the socket that has been passed to the constructor.
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143 */
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144 public Socket getSocket()
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145 {
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146 return state.s;
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147 }
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 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
150 * 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
151 * 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
152 * 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
153 * 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
154 * 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
155 * the initial key exchange has been established.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
156 * <p>
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
157 * 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
158 * 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
159 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
160 * @throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
161 * 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
162 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
163 public synchronized void forceKeyExchange() throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
164 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
165 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
166 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
167 if (state.tm == null)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
168 throw new IllegalStateException(
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
169 "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
170
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
171 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
172 }
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
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 * 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
177 * 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
178 * 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
179 * <p>
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
180 * 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
181 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
182 * @return A {@link ConnectionInfo} object.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
183 * @throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
184 * 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
185 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
186 public synchronized ConnectionInfo getConnectionInfo() throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
187 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
188 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
189 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
190 if (state.tm == null)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
191 throw new IllegalStateException(
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
192 "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
193 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
194
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
195 return state.tm.getConnectionInfo(1);
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 /**
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
199 * 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
200 * the client.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
201 * <p>
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
202 * 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
203 * 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
204 * 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
205 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
206 * @param dsa_hostkey
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
207 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
208 public synchronized void setDsaHostKey(DSAPrivateKey dsa_hostkey)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
209 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
210 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
211 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
212 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
213 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
214
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
215 state.next_dsa_key = dsa_hostkey;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
216 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
217 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
218 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
219
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 * 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
222 * the client.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
223 * <p>
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
224 * 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
225 * 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
226 * 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
227 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
228 * @param rsa_hostkey
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
229 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
230 public synchronized void setRsaHostKey(RSAPrivateKey rsa_hostkey)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
231 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
232 synchronized (state)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
233 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
234 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
235 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
236
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
237 state.next_rsa_key = rsa_hostkey;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
238 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
239 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
240 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
241
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 * 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
244 * 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
245 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
246 * @param pemdata The PEM data
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
247 * @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
248 * @throws IOException In case of any error.
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
249 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
250 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
251 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
252 Object key = PEMDecoder.decode(pemdata, password);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
253
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
254 if (key instanceof DSAPrivateKey)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
255 setDsaHostKey((DSAPrivateKey) key);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
256
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
257 if (key instanceof RSAPrivateKey)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
258 setRsaHostKey((RSAPrivateKey) key);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
259 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
260
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 * 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
263 * 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
264 *
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
265 * @param pemFile The PEM file
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
266 * @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
267 * @throws IOException
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
268 */
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
269 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
270 {
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
271 if (pemFile == null)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
272 throw new IllegalArgumentException("pemfile argument is null");
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
274 char[] buff = new char[256];
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 CharArrayWriter cw = new CharArrayWriter();
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 FileReader fr = new FileReader(pemFile);
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 while (true)
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 int len = fr.read(buff);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
283 if (len < 0)
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
284 break;
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
285 cw.write(buff, 0, len);
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
286 }
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
287
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
288 fr.close();
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 setPEMHostKey(cw.toCharArray(), password);
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
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
293 private void fixCryptoWishList(CryptoWishList next_cryptoWishList, DSAPrivateKey next_dsa_key,
91a31873c42a start conversion from trilead to ganymed
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294 RSAPrivateKey next_rsa_key)
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295 {
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296 if ((next_dsa_key != null) && (next_rsa_key != null))
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297 next_cryptoWishList.serverHostKeyAlgorithms = new String[] { "ssh-rsa", "ssh-dss" };
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298 else if (next_dsa_key != null)
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299 next_cryptoWishList.serverHostKeyAlgorithms = new String[] { "ssh-dss" };
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300 else if (next_rsa_key != null)
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301 next_cryptoWishList.serverHostKeyAlgorithms = new String[] { "ssh-rsa" };
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302 else
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303 next_cryptoWishList.serverHostKeyAlgorithms = new String[0];
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304 }
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305
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306 /**
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307 * Callback interface with methods that will be called upon events
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308 * generated by the client (e.g., client opens a new Session which results in a <code>ServerSession</code>).
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309 * <p>
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310 * Note: This must be set before the first handshake.
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311 *
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312 * @param cb The callback implementation
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313 */
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314 public synchronized void setServerConnectionCallback(ServerConnectionCallback cb)
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315 {
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316 synchronized (state)
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317 {
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318 state.cb_conn = cb;
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319 }
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320 }
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321
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322 /**
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323 * Callback interface with methods that will be called upon authentication events.
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324 * <p>
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325 * Note: This must be set before the first handshake.
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326 *
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327 * @param cb The callback implementation
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328 */
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329 public synchronized void setAuthenticationCallback(ServerAuthenticationCallback cb)
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330 {
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331 synchronized (state)
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332 {
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333 state.cb_auth = cb;
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334 }
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335 }
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336
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337 /**
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338 * Close the connection to the SSH-2 server. All assigned sessions will be
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339 * closed, too. Can be called at any time. Don't forget to call this once
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340 * you don't need a connection anymore - otherwise the receiver thread may
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341 * run forever.
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342 */
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343 public void close()
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344 {
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345 synchronized (state)
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346 {
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347 if (state.cm != null)
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348 state.cm.closeAllChannels();
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349
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350 if (state.tm != null)
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351 {
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352 state.tm.close();
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353 }
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354 }
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355 }
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356
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357 public void close(IOException t)
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358 {
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359 synchronized (state)
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360 {
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361 if (state.cm != null)
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362 state.cm.closeAllChannels();
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363
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364 if (state.tm != null)
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diff changeset
365 {
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366 state.tm.close(t);
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367 }
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368 }
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369 }
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370 }