host.java

sifi-0.1.6.tar.gz 出自http://www.ifi.unizh.ch/ikm/SINUS/firewall/ 一个linux的防火墙工具。

      ps.println("end.");

      ros.close();
      ps.close();

      return Communicator.checkConfig(HostAddresses.getFirstAddress());
    } // try
    catch (Exception e) {
      return false;
    }
  }

  /**
   * Reconfigure firewall. 
   * @return true on success, false otherwise
   */
  public boolean reconfig() {
    return Communicator.reconfig(HostAddresses.getFirstAddress());
  }
  // persistence methods
  /**
   * Write object data to a persistent output stream
   * @param ps Stream
   * @see PersistentOutputStream
   */
  public void write(PersistentOutputStream ps) {
    super.write(ps);
    ps.writePersistent("HostAddresses=", HostAddresses);
    ps.writePersistent("internalAddresses=", internalAddresses);
    ps.writeBoolean("isFirewall=", isFirewall);
    ps.writeBoolean("transparent=", transparent);
    ps.writeBoolean("isServer=", isServer);
    ps.writeBoolean("publicServer=", publicServer);
    ps.writeInt("NumberOfTemplates=", hostTemplates.length);
    for (int i=0; i < hostTemplates.length; i++)
      ps.writeBoolean("TemplateItem=", hostTemplates[i]);
  }

  /**
   * Read object data from a persistent input stream
   * @param ps Stream
   * @see PersistentInputStream
   */
  public void read(PersistentInputStream ps) throws java.io.IOException {
    super.read(ps);
    HostAddresses = (AddrList)ps.readPersistent("HostAddresses=");
    internalAddresses = (AddrList)ps.readPersistent("internalAddresses=");
    isFirewall = ps.readBoolean("isFirewall=");
    transparent = ps.readBoolean("transparent=");
    isServer = ps.readBoolean("isServer=");
    publicServer = ps.readBoolean("publicServer=");
    int tlen = ps.readInt("NumberOfTemplates=");
    boolean btmp[] = new boolean[tlen];
    for (int i=0; i < tlen; i++)
      btmp[i] = ps.readBoolean("TemplateItem=");
    if (tlen == hostTemplates.length)
      hostTemplates = btmp;
  }


  // overriding Object methods

  /**
   * @return string describing the host
   */
  public String toString() {
    return "Host: "+objectInfo();
  }

  private static java.awt.image.ImageProducer bCpuSource = null;
  private static java.awt.image.ImageProducer bFirewallSource = null;
  private static java.awt.image.ImageProducer bServerSource = null;

  // host properties
	protected boolean isConsistent = false;	// is configuration consistent?
  protected AddrList HostAddresses = new AddrList();
  protected AddrList internalAddresses = null; // automatically calculated
  protected boolean isFirewall = false; // is this host a firewall?
  protected boolean transparent = true; // route traffic from outside to outside
  protected boolean isServer = false; // is this host a server (e.g.WWW) ?
  protected boolean publicServer = true; // is this server a public server, 
                                         // i.e. access from the internet allowed?
  protected boolean hostTemplates[];

  // variables for sfc show data
  protected transient boolean isLoaded = false;
  protected transient byte addr[][];
  protected transient byte mask[][];
  protected transient short port[];
  protected transient short prend[];
  protected transient Vector rules;
  protected transient String varnames[];
  protected transient int varvalues[][];
  protected transient byte varaddr[][][];
  protected transient Date vartimeout[][];
  protected transient Vector tcpconns;
  protected transient Date actDate; // server time and date when reading tcp connections

  private transient FirewallAction actionFrame = null;

} // Host

// Dialog to enter the host settings
class HostProperties
	extends Dialog
	implements ActionListener, ItemListener, TextListener {

  public HostProperties(Frame parent, String title, Host hst) {
    super(parent, title, true);
    host = hst;
    GridBagLayout gbl = new GridBagLayout();
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.fill = GridBagConstraints.BOTH;
    gbc.insets = new Insets(5,5,5,5);
    setLayout(gbl);

    // Name panel
    Utils.add_component(this, new JLabel(new ImageIcon(host.icon)),
	 										gbl, gbc, 0, 0, 1, 1, 0, 0);
    Utils.add_component(this, new Label("Identifier: "),
	 										gbl, gbc, 1, 0, 1, 1, 0, 0);
    IDtext = new TextField(host.objectID);
	 IDtext.addTextListener(this);
    Utils.add_component(this, IDtext, gbl, gbc, 2, 0, 3, 1, 100, 0);

    // Address panel
    Panel ap = host.HostAddresses.editPanel();
    Utils.add_component(this, ap, gbl, gbc, 0, 1, 3, 8, 80, 100);

    // Host type panel
    FirewallBox = new Checkbox("Firewall", host.isFirewall);
	 FirewallBox.addItemListener(this);
    FirewallMore = new Button("More...");
	 FirewallMore.addActionListener(this);
    Utils.add_component(this, FirewallBox, gbl, gbc, 3, 2, 1, 1, 0, 0);
    Utils.add_component(this, FirewallMore, gbl, gbc, 4, 2, 1, 1, 0, 0);
    ServerBox = new Checkbox("Server", host.isServer);
	 ServerBox.addItemListener(this);
    ServerMore = new Button("More...");
	 ServerMore.addActionListener(this);
    Utils.add_component(this, ServerBox, gbl, gbc, 3, 3, 1, 1, 0, 0);
    Utils.add_component(this, ServerMore, gbl, gbc, 4, 3, 1, 1, 0, 0);

    // Buttons
    OKbutton = new Button("OK");
	 OKbutton.addActionListener(this);
    gbc.fill = GridBagConstraints.NONE;
    Utils.add_component(this, OKbutton, gbl, gbc, 0, 9, 5, 1, 0, 0);

    // Window size
    Graphics g = parent.getGraphics();
    FontMetrics fm = g.getFontMetrics();
    setSize(fm.stringWidth("255.255.255.255/255.255.255.255   ") * 2,
           fm.getHeight() * 20 );
    g.dispose();
	 addWindowListener(new HPAdapter());
  }


  // Handle Windowclosing
class HPAdapter extends WindowAdapter {
  	public void WindowClosing(WindowEvent we) {
      if (isEnabled())
        dispose();
      return;
	}
} // HPAdapter


	// Process Buttons
  public void actionPerformed(ActionEvent ae) {
  Object source = ae.getSource();

	 // Process OKbutton
    if (source==OKbutton) {  
      host.objectID = IDtext.getText().trim();
      dispose();
      return;
    }

	 // Process FirewallMore
    else if (source==FirewallMore) {
      if (host.isFirewall) {
        AutoconfSettings as = new AutoconfSettings(
          Utils.getParentFrame(this), "Firewall Settings", host, 
          Templates.startFirewall, Templates.numberFirewall);
        as.setVisible(true);
      }
      return;
    }

	 // Process ServerMore
    else if (source==ServerMore) {
      if (host.isServer) {
        AutoconfSettings as = new AutoconfSettings( 
          Utils.getParentFrame(this), "Server Settings", host, 
          Templates.startServer, Templates.numberServer);
        as.setVisible(true);
      } 
      return;
    }
  } // actionPerformed


	// Process Checkboxes
  public void itemStateChanged(ItemEvent ie) {
  Object source = ie.getSource();

	 // Process FirewallBox
    if (source==FirewallBox) {
      host.isFirewall = FirewallBox.getState();
      return;
    }

	 // Process ServerBox
    else if (source==ServerBox) {
      host.isServer = ServerBox.getState();
      return;
    }
  } // itemStateChanged


  // Process TextFields
  public void textValueChanged(TextEvent te) {
  Object source = te.getSource();

	 // Process IDtext
    if (source==IDtext) {
      host.objectID = (((TextComponent)source).getText().trim());
      setTitle("Host "+host.objectID);
      return;
    }
  } // textValueChanged

	public boolean isFirewall() {

		return FirewallBox.getState();
	} // isFirewall

  private Host host;
  private Button OKbutton;
  private TextField IDtext;
  private Checkbox FirewallBox;
  private Checkbox ServerBox;
  private Button FirewallMore;
  private Button ServerMore;
} // HostProperties

// Dialog to enter the firewall and server access profiles
class AutoconfSettings
	extends Dialog
	implements ActionListener, ItemListener {

  public AutoconfSettings(Frame p, String title, Host hst, int st, int no) {
    super(p, title, true);
    start = st;
    number = no;
    host = hst;
    GridBagLayout gbl = new GridBagLayout();
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.fill = GridBagConstraints.BOTH;
    gbc.insets = new Insets(5,5,5,5);
    setLayout(gbl);

    // Checkboxes
    gbc.fill = GridBagConstraints.NONE;
    gbc.anchor = GridBagConstraints.NORTHWEST;

    if (start == Templates.startServer) { // server dialog
      publicServerBox = new Checkbox("Public access to this server",
											host.publicServer);
		publicServerBox.addItemListener(this);
      Utils.add_component(this, publicServerBox, gbl, gbc, 0, 0, 4, 1, 0, 0);
    }

    if (start == Templates.startFirewall) { // firewall dialog