Exemplo n.º 1
0
  /*
   * Sends a change cipher spec message and updates the write side
   * cipher state so that future messages use the just-negotiated spec.
   */
  void sendChangeCipherSpec(Finished mesg, boolean lastMessage) throws IOException {

    output.flush(); // i.e. handshake data

    /*
     * The write cipher state is protected by the connection write lock
     * so we must grab it while making the change. We also
     * make sure no writes occur between sending the ChangeCipherSpec
     * message, installing the new cipher state, and sending the
     * Finished message.
     *
     * We already hold SSLEngine/SSLSocket "this" by virtue
     * of this being called from the readRecord code.
     */
    OutputRecord r;
    if (conn != null) {
      r = new OutputRecord(Record.ct_change_cipher_spec);
    } else {
      r = new EngineOutputRecord(Record.ct_change_cipher_spec, engine);
    }

    r.setVersion(protocolVersion);
    r.write(1); // single byte of data

    if (conn != null) {
      conn.writeLock.lock();
      try {
        conn.writeRecord(r);
        conn.changeWriteCiphers();
        if (debug != null && Debug.isOn("handshake")) {
          mesg.print(System.out);
        }
        mesg.write(output);
        output.flush();
      } finally {
        conn.writeLock.unlock();
      }
    } else {
      synchronized (engine.writeLock) {
        engine.writeRecord((EngineOutputRecord) r);
        engine.changeWriteCiphers();
        if (debug != null && Debug.isOn("handshake")) {
          mesg.print(System.out);
        }
        mesg.write(output);

        if (lastMessage) {
          output.setFinishedMsg();
        }
        output.flush();
      }
    }
  }
Exemplo n.º 2
0
  /*
   * Used to kickstart the negotiation ... either writing a
   * ClientHello or a HelloRequest as appropriate, whichever
   * the subclass returns.  NOP if handshaking's already started.
   */
  void kickstart() throws IOException {
    if (state >= 0) {
      return;
    }

    HandshakeMessage m = getKickstartMessage();

    if (debug != null && Debug.isOn("handshake")) {
      m.print(System.out);
    }
    m.write(output);
    output.flush();

    state = m.messageType();
  }