1600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang/* 2600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Conditions Of Use 3600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 4600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* This software was developed by employees of the National Institute of 5600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Standards and Technology (NIST), an agency of the Federal Government. 6600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Pursuant to title 15 Untied States Code Section 105, works of NIST 7600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* employees are not subject to copyright protection in the United States 8600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* and are considered to be in the public domain. As a result, a formal 9600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* license is not needed to use the software. 10600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 11600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* This software is provided by NIST as a service and is expressly 12600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED 13600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF 14600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT 15600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* AND DATA ACCURACY. NIST does not warrant or make any representations 16600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* regarding the use of the software or the results thereof, including but 17600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* not limited to the correctness, accuracy, reliability or usefulness of 18600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* the software. 19600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 20600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* Permission to use this software is contingent upon your acceptance 21600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* of the terms of this agreement 22600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 23600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* . 24600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang* 25600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang*/ 26600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangpackage gov.nist.core.net; 27600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 28600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport java.io.IOException; 29600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport java.net.DatagramSocket; 30600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport java.net.InetAddress; 31600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport java.net.InetSocketAddress; 32600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport java.net.MulticastSocket; 33600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport java.net.ServerSocket; 34600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport java.net.Socket; 35600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport java.net.SocketException; 36600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 37600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang/* Added by Daniel J. Martinez Manzano <dani@dif.um.es> */ 38600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport javax.net.ssl.SSLSocket; 39600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport javax.net.ssl.SSLSocketFactory; 40600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport javax.net.ssl.SSLServerSocket; 41600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangimport javax.net.ssl.SSLServerSocketFactory; 42600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 43600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang/** 44600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * default implementation which passes straight through to java platform 45600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 46600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @author m.andrews 47600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @version 1.2 48600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @since 1.1 49600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 50600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 51600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wangpublic class DefaultNetworkLayer implements NetworkLayer { 52600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 53600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang private SSLSocketFactory sslSocketFactory; 54600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 55600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang private SSLServerSocketFactory sslServerSocketFactory; 56600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 57600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 58600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * single default network layer; for flexibility, it may be better not to 59600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * make it a singleton, but singleton seems to make sense currently. 60600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 61600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public static final DefaultNetworkLayer SINGLETON = new DefaultNetworkLayer(); 62600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 63600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang private DefaultNetworkLayer() { 64600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang sslServerSocketFactory = (SSLServerSocketFactory) SSLServerSocketFactory 65600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang .getDefault(); 66600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang sslSocketFactory = (SSLSocketFactory) SSLSocketFactory.getDefault(); 67600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 68600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 69600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public ServerSocket createServerSocket(int port, int backlog, 70600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang InetAddress bindAddress) throws IOException { 71600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return new ServerSocket(port, backlog, bindAddress); 72600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 73600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 74600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public Socket createSocket(InetAddress address, int port) 75600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang throws IOException { 76600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return new Socket(address, port); 77600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 78600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 79600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public DatagramSocket createDatagramSocket() throws SocketException { 80600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return new DatagramSocket(); 81600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 82600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 83600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public DatagramSocket createDatagramSocket(int port, InetAddress laddr) 84600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang throws SocketException { 85600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 86600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if ( laddr.isMulticastAddress() ) { 87600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang try { 88600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang MulticastSocket ds = new MulticastSocket( port ); 89600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang ds.joinGroup( laddr ); 90600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return ds; 91600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } catch (IOException e) { 92600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang throw new SocketException( e.getLocalizedMessage() ); 93600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 94600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } else return new DatagramSocket(port, laddr); 95600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 96600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 97600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /* Added by Daniel J. Martinez Manzano <dani@dif.um.es> */ 98600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public SSLServerSocket createSSLServerSocket(int port, int backlog, 99600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang InetAddress bindAddress) throws IOException { 100600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return (SSLServerSocket) sslServerSocketFactory.createServerSocket( 101600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang port, backlog, bindAddress); 102600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 103600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 104600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /* Added by Daniel J. Martinez Manzano <dani@dif.um.es> */ 105600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public SSLSocket createSSLSocket(InetAddress address, int port) 106600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang throws IOException { 107600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return (SSLSocket) sslSocketFactory.createSocket(address, port); 108600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 109600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 110600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /* Added by Daniel J. Martinez Manzano <dani@dif.um.es> */ 111600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public SSLSocket createSSLSocket(InetAddress address, int port, 112600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang InetAddress myAddress) throws IOException { 113600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return (SSLSocket) sslSocketFactory.createSocket(address, port, 114600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang myAddress, 0); 115600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 116600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 117600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public Socket createSocket(InetAddress address, int port, 118600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang InetAddress myAddress) throws IOException { 119600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if (myAddress != null) 120600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return new Socket(address, port, myAddress, 0); 121600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang else 122600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return new Socket(address, port); 123600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 124600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 125600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang /** 126600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * Creates a new Socket, binds it to myAddress:myPort and connects it to 127600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * address:port. 128600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 129600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @param address the InetAddress that we'd like to connect to. 130600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @param port the port that we'd like to connect to 131600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @param myAddress the address that we are supposed to bind on or null 132600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * for the "any" address. 133600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @param myPort the port that we are supposed to bind on or 0 for a random 134600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * one. 135600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * 136600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @return a new Socket, bound on myAddress:myPort and connected to 137600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * address:port. 138600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * @throws IOException if binding or connecting the socket fail for a reason 139600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang * (exception relayed from the correspoonding Socket methods) 140600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang */ 141600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang public Socket createSocket(InetAddress address, int port, 142600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang InetAddress myAddress, int myPort) 143600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang throws IOException 144600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang { 145600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang if (myAddress != null) 146600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return new Socket(address, port, myAddress, myPort); 147600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang else if (port != 0) 148600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang { 149600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang //myAddress is null (i.e. any) but we have a port number 150600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang Socket sock = new Socket(); 151600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang sock.bind(new InetSocketAddress(port)); 152600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang sock.connect(new InetSocketAddress(address, port)); 153600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return sock; 154600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 155600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang else 156600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang return new Socket(address, port); 157600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang } 158600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang 159600c7a4bbc7348167293eac928192e695b4ad5baChung-yih Wang} 160