List of usage examples for java.net DatagramSocket DatagramSocket
public DatagramSocket() throws SocketException
From source file:com.all.landownloader.discovery.LanDiscoverySocket.java
public void reply(InetAddress address) throws IllegalArgumentException { try {/*w ww. j av a2 s. com*/ byte[] buf = createPacket(REPLY_MSG); DatagramPacket packet = new DatagramPacket(buf, buf.length, address, PORT); DatagramSocket socket = new DatagramSocket(); socket.send(packet); socket.close(); } catch (IOException e) { } }
From source file:eu.stratosphere.nephele.discovery.DiscoveryService.java
/** * Attempts to retrieve the job managers address in the network through an * IP broadcast. This method should be called by the task manager. * /*from w w w . ja v a2 s .c o m*/ * @return the socket address of the job manager in the network * @throws DiscoveryException * thrown if the job manager's socket address could not be * discovered */ public static InetSocketAddress getJobManagerAddress() throws DiscoveryException { final int magicNumber = GlobalConfiguration.getInteger(MAGICNUMBER_KEY, DEFAULT_MAGICNUMBER); final int discoveryPort = GlobalConfiguration.getInteger(DISCOVERYPORT_KEY, DEFAULT_DISCOVERYPORT); InetSocketAddress jobManagerAddress = null; DatagramSocket socket = null; try { final Set<InetAddress> targetAddresses = getBroadcastAddresses(); if (targetAddresses.isEmpty()) { throw new DiscoveryException("Could not find any broadcast addresses available to this host"); } socket = new DatagramSocket(); LOG.debug("Setting socket timeout to " + CLIENTSOCKETTIMEOUT); socket.setSoTimeout(CLIENTSOCKETTIMEOUT); final DatagramPacket responsePacket = new DatagramPacket(new byte[RESPONSE_PACKET_SIZE], RESPONSE_PACKET_SIZE); for (int retries = 0; retries < DISCOVERFAILURERETRIES; retries++) { final DatagramPacket lookupRequest = createJobManagerLookupRequestPacket(magicNumber); for (InetAddress broadcast : targetAddresses) { lookupRequest.setAddress(broadcast); lookupRequest.setPort(discoveryPort); LOG.debug("Sending discovery request to " + lookupRequest.getSocketAddress()); socket.send(lookupRequest); } try { socket.receive(responsePacket); } catch (SocketTimeoutException ste) { LOG.debug("Timeout wainting for discovery reply. Retrying..."); continue; } if (!isPacketForUs(responsePacket, magicNumber)) { LOG.debug("Received packet which is not destined to this Nephele setup"); continue; } final int packetTypeID = getPacketTypeID(responsePacket); if (packetTypeID != JM_LOOKUP_REPLY_ID) { LOG.debug("Received unexpected packet type " + packetTypeID + ", discarding... "); continue; } final int ipcPort = extractIpcPort(responsePacket); // Replace port from discovery service with the actual RPC port // of the job manager if (USE_IPV6) { // TODO: No connection possible unless we remove the scope identifier if (responsePacket.getAddress() instanceof Inet6Address) { try { jobManagerAddress = new InetSocketAddress( InetAddress.getByAddress(responsePacket.getAddress().getAddress()), ipcPort); } catch (UnknownHostException e) { throw new DiscoveryException(StringUtils.stringifyException(e)); } } else { throw new DiscoveryException(responsePacket.getAddress() + " is not a valid IPv6 address"); } } else { jobManagerAddress = new InetSocketAddress(responsePacket.getAddress(), ipcPort); } LOG.debug("Discovered job manager at " + jobManagerAddress); break; } } catch (IOException ioe) { throw new DiscoveryException(ioe.toString()); } finally { if (socket != null) { socket.close(); } } if (jobManagerAddress == null) { LOG.debug("Unable to discover Jobmanager via IP broadcast"); throw new DiscoveryException("Unable to discover JobManager via IP broadcast!"); } return jobManagerAddress; }
From source file:cycronix.ctudp.CTudp.java
public CTudp(String[] arg) { String[] chanName = new String[32]; String defaultChanName = "udpchan"; String[] csvChanNames = null; int ssNum[] = new int[32]; int defaultPort = 4445; double dt[] = new double[32]; double defaultDT = 0.0; int numChan = 0; // For communicating with UDP server; we send a "keep alive" heartbeat message to this server // and will receive UDP packets from this server DatagramSocket clientSocket = null; // This socket will be shared by UDPread and UDPHeartbeatTask classes InetAddress udpserverIP = null; int udpserverPort = -1; int heartbeatPeriod_msec = -1; boolean bCSVTest = false; // If the "-csvtest" option has been specified along with the "-udpserver" option, then the heartbeat message itself is a CSV string that can be used for testing CTudp in loopback mode. // Optional local UDP server that can be started to serve test data int testserverPort = -1; int testserverPeriod_msec = -1; ////www . ja v a 2 s . com // Argument processing using Apache Commons CLI // // 1. Setup command line options Options options = new Options(); options.addOption("h", "help", false, "Print this message."); options.addOption("pack", false, "Blocks of data should be packed? default = " + Boolean.toString(packMode) + "."); options.addOption(Option.builder("s").argName("source name").hasArg() .desc("Name of source to write packets to; default = \"" + srcName + "\".").build()); options.addOption(Option.builder("c").argName("channel name").hasArg() .desc("Name of channel to write packets to; default = \"" + defaultChanName + "\".").build()); options.addOption(Option.builder("csplit").argName("channel name(s)").hasArg().desc( "Comma-separated list of channel names; split an incoming CSV string into a series of channels with the given names; supported channel name suffixes and their associated data types: .txt (string), .csv or no suffix (numeric), .f32 (32-bit floating point), .f64 (64-bit floating point).") .build()); options.addOption(Option.builder("e").argName("exception val").hasArg().desc( "If a CSV string is being parsed (using the -csplit option) and there is an error saving a string component as a floating point value, use this \"exception value\" in its place; default = " + Double.toString(exceptionVal) + ".") .build()); options.addOption(Option.builder("m").argName("multicast address").hasArg() .desc("Multicast UDP address (224.0.0.1 to 239.255.255.255).").build()); options.addOption(Option.builder("p").argName("UDP port").hasArg() .desc("Port number to listen for UDP packets on; default = " + Integer.toString(defaultPort) + ".") .build()); options.addOption(Option.builder("d").argName("delta-Time").hasArg() .desc("Fixed delta-time (msec) between frames; specify 0 to use arrival-times; default = " + Double.toString(defaultDT) + ".") .build()); options.addOption(Option.builder("f").argName("autoFlush").hasArg().desc( "Flush interval (sec); amount of data per zipfile; default = " + Double.toString(autoFlush) + ".") .build()); options.addOption(Option.builder("t").argName("trim-Time").hasArg() .desc("Trim (ring-buffer loop) time (sec); specify 0 for indefinite; default = " + Double.toString(trimTime) + ".") .build()); options.addOption(Option.builder("udpserver").argName("IP,port,period_msec").hasArg().desc( "Talk to a UDP server; send a periodic keep-alive message to the given IP:port at the specified period and receive packets from this server; not to be used with the \"-p\" option.") .build()); options.addOption(Option.builder("testserver").argName("port,period_msec").hasArg().desc( "Start a UDP server on the local machine to serve CSV strings at the specified period with the format specified by the \"-csplit\" option (if no \"-csplit\" option has been specified, a simple text message is output). The test server waits for a message from the client before starting packet flow. This feature can be used along with the \"-udpserver\" option for local/loopback testing (NOTE: make sure the server ports match).") .build()); options.addOption(Option.builder("bps").argName("blocks_per_seg").hasArg() .desc("Number of blocks per segment; specify 0 for no segments; default = " + Long.toString(blocksPerSegment) + ".") .build()); options.addOption("w", false, "Split the captured string on white space rather than commas."); options.addOption("x", "debug", false, "Debug mode."); // 2. Parse command line options CommandLineParser parser = new DefaultParser(); CommandLine line = null; try { line = parser.parse(options, arg); } catch (ParseException exp) { // oops, something went wrong System.err.println("Command line argument parsing failed: " + exp.getMessage()); return; } // 3. Retrieve the command line values if (line.hasOption("help")) { // Display help message and quit HelpFormatter formatter = new HelpFormatter(); formatter.setWidth(120); formatter.printHelp("CTudp", options); return; } srcName = line.getOptionValue("s", srcName); String chanNameL = line.getOptionValue("c", defaultChanName); chanName = chanNameL.split(","); numChan = chanName.length; if (line.hasOption("csplit")) { chanNameL = line.getOptionValue("csplit"); csvChanNames = chanNameL.split(","); if (numChan > 1) { System.err.println( "Error: don't use the \"-csplit\" option when receiving packets from multiple UDP ports."); System.exit(0); } // Make sure that the channel names either have no suffix or will end in .txt, .csv, .f32, .f64 for (int i = 0; i < csvChanNames.length; ++i) { int dotIdx = csvChanNames[i].lastIndexOf('.'); if ((dotIdx > -1) && (!csvChanNames[i].endsWith(".txt")) && (!csvChanNames[i].endsWith(".csv")) && (!csvChanNames[i].endsWith(".f32")) && (!csvChanNames[i].endsWith(".f64"))) { System.err.println( "Error: illegal channel name specified in the \"-csplit\" list: " + csvChanNames[i]); System.err.println( "\tAccepted channel names: channels with no suffix or with .txt, .csv, .f32 or .f64 suffixes."); System.exit(0); } } } String exceptionValStr = line.getOptionValue("e", Double.toString(exceptionVal)); try { exceptionVal = Double.parseDouble(exceptionValStr); } catch (NumberFormatException nfe) { System.err.println("Error parsing the given exception value (\"-e\" flag)."); System.exit(0); } multiCast = line.getOptionValue("m", multiCast); String nss = line.getOptionValue("p", Integer.toString(defaultPort)); String[] ssnums = nss.split(","); numSock = ssnums.length; for (int i = 0; i < numSock; i++) ssNum[i] = Integer.parseInt(ssnums[i]); String sdt = line.getOptionValue("d", Double.toString(defaultDT)); String[] ssdt = sdt.split(","); for (int i = 0; i < ssdt.length; i++) dt[i] = Double.parseDouble(ssdt[i]); autoFlush = Double.parseDouble(line.getOptionValue("f", "" + autoFlush)); trimTime = Double.parseDouble(line.getOptionValue("t", Double.toString(trimTime))); blocksPerSegment = Long.parseLong(line.getOptionValue("bps", Long.toString(blocksPerSegment))); if (line.hasOption("pack")) { packMode = true; } bSplitOnWhiteSpace = line.hasOption("w"); debug = line.hasOption("debug"); // Parameters when talking to a UDP server // Can't specify both "-p" and "-udpserver" if (line.hasOption("p") && line.hasOption("udpserver")) { System.err.println( "Specify either \"-p\" (to listen on the given port(s)) or \"-udpserver\" (to talk to UDP server), not both."); System.exit(0); } if (line.hasOption("udpserver")) { String udpserverStr = line.getOptionValue("udpserver"); // Parse the server,port,period_msec from this string String[] udpserverConfigCSV = udpserverStr.split(","); if (udpserverConfigCSV.length != 3) { System.err.println( "Error: the \"-udpserver\" argument must contain 3 parameters: IP,port,period_msec"); System.exit(0); } try { udpserverIP = InetAddress.getByName(udpserverConfigCSV[0]); } catch (UnknownHostException e) { System.err.println("Error processing the \"-udpserver\" server name:\n" + e); System.exit(0); } try { udpserverPort = Integer.parseInt(udpserverConfigCSV[1]); if (udpserverPort <= 0) { throw new Exception("Invalid port number"); } } catch (Exception e) { System.err.println("Error: the \"-udpserver\" port must be an integer greater than 0."); System.exit(0); } try { heartbeatPeriod_msec = Integer.parseInt(udpserverConfigCSV[2]); if (heartbeatPeriod_msec <= 0) { throw new Exception("Invalid period"); } } catch (Exception e) { System.err.println("Error: the \"-udpserver\" period_msec must be an integer greater than 0."); System.exit(0); } } if (line.hasOption("testserver")) { String testserverStr = line.getOptionValue("testserver"); // Parse the port,period_msec from this string String[] testserverConfigCSV = testserverStr.split(","); if (testserverConfigCSV.length != 2) { System.err .println("Error: the \"-testserver\" argument must contain 2 parameters: port,period_msec"); System.exit(0); } try { testserverPort = Integer.parseInt(testserverConfigCSV[0]); if (testserverPort <= 0) { throw new Exception("Invalid port number"); } } catch (Exception e) { System.err.println("Error: the \"-testserver\" port must be an integer greater than 0."); System.exit(0); } try { testserverPeriod_msec = Integer.parseInt(testserverConfigCSV[1]); if (testserverPeriod_msec <= 0) { throw new Exception("Invalid period"); } } catch (Exception e) { System.err.println("Error: the \"-testserver\" period_msec must be an integer greater than 0."); System.exit(0); } } if (numSock != numChan) { System.err.println("Error: must specify same number of channels and ports!"); System.exit(0); } if (multiCast != null && numSock > 1) { System.err.println("Error: can only have one multicast socket!"); System.exit(0); } if (numSock == 0) numSock = 1; // use defaults System.err.println("Source name: " + srcName); if (udpserverIP == null) { for (int i = 0; i < numSock; i++) { System.err.println("Channel[" + i + "]: " + chanName[i]); System.err.println("UDPport[" + i + "]: " + ssNum[i]); } } if (csvChanNames != null) { System.err.println("\nIncoming csv strings will be split into the following channels:"); for (int i = 0; i < (csvChanNames.length - 1); ++i) { System.err.print(csvChanNames[i] + ","); } System.err.println(csvChanNames[csvChanNames.length - 1]); } // // If user has requested it, start the test UDP server // if (testserverPort > -1) { UDPserver svr = null; try { svr = new UDPserver(testserverPort, testserverPeriod_msec, csvChanNames); } catch (SocketException se) { System.err.println("Error: caught exception trying to start test server:\n" + se); System.exit(0); } svr.start(); } // // If user requested it, initialize communication with the UDP server // if (udpserverIP != null) { try { // This DatagramSocket will be shared by UDPread and UDPHeartbeatTask classes clientSocket = new DatagramSocket(); } catch (SocketException e) { System.err.println("Error creating DatagramSocket:\n" + e); System.exit(0); } Timer time = new Timer(); UDPHeartbeatTask heartbeatTask = new UDPHeartbeatTask(clientSocket, udpserverIP, udpserverPort); time.schedule(heartbeatTask, 0, heartbeatPeriod_msec); } // // setup CTwriter // try { ctw = new CTwriter(srcName, trimTime); ctw.setBlockMode(packMode, zipMode); CTinfo.setDebug(debug); ctw.autoSegment(blocksPerSegment); autoFlushMillis = (long) (autoFlush * 1000.); // ctw.autoFlush(autoFlush); // auto flush to zip once per interval (sec) of data } catch (Exception e) { e.printStackTrace(); System.exit(0); } // // start a thread for each port // if we are talking to a UDP server, there is only 1 instance of UDPread // if (clientSocket != null) { System.err.println("Talk to UDP server at " + udpserverIP + ":" + udpserverPort); new UDPread(clientSocket, chanName[0], csvChanNames, dt[0]).start(); } else { for (int i = 0; i < numSock; i++) { System.err.println("start thread for port: " + ssNum[i] + ", chan: " + chanName[i]); new UDPread(ssNum[i], chanName[i], csvChanNames, dt[i]).start(); } } }
From source file:com.vuze.plugin.azVPN_Helper.CheckerCommon.java
private final int handleFindBindingAddress(InetAddress currentBindIP, StringBuilder sReply, int numLoops) { if (currentBindIP == null) { addReply(sReply, CHAR_BAD, "!Bind IP null!", new String[] { "" + currentBindIP }); return STATUS_ID_BAD; }//from w ww . ja va2 s . c o m int newStatusID = STATUS_ID_OK; Map<String, BindableInterface> mapBindableInterfaces = new HashMap<String, BindableInterface>(); BindableInterface newBind = null; String s; // The "Any" field is equivalent to 0.0.0.0 in dotted-quad notation, which is unbound. // "Loopback" is 127.0.0.1, which is bound when Vuze can't bind to // user specified interface (ie. kill switched) if (currentBindIP.isAnyLocalAddress()) { addReply(sReply, CHAR_WARN, "vpnhelper.vuze.unbound"); } else if (currentBindIP.isLoopbackAddress()) { addReply(sReply, CHAR_BAD, "vpnhelper.vuze.loopback"); } else { // bound boolean isGoodExistingBind = matchesVPNIP(currentBindIP, null); if (isGoodExistingBind) { String niName = "Unknown Interface"; try { NetworkInterface networkInterface = NetUtils.getByInetAddress(currentBindIP); niName = networkInterface.getName() + " (" + networkInterface.getDisplayName() + ")"; } catch (Throwable e) { } addReply(sReply, CHAR_GOOD, "vpnhelper.bound.good", new String[] { "" + currentBindIP, niName }); vpnIP = currentBindIP; } else { addReply(sReply, CHAR_BAD, "vpnhelper.bound.bad", new String[] { "" + currentBindIP }); } } try { boolean foundExistingVPNIP = false; NetworkAdmin networkAdmin = NetworkAdmin.getSingleton(); // Find a bindable address that starts with 10. InetAddress[] bindableAddresses = networkAdmin.getBindableAddresses(); for (InetAddress bindableAddress : bindableAddresses) { if (matchesVPNIP(bindableAddress, null)) { String hostAddress = bindableAddress.getHostAddress(); BindableInterface bi = mapBindableInterfaces.get(hostAddress); if (bi == null) { bi = new BindableInterface(bindableAddress, NetUtils.getByInetAddress(bindableAddress)); mapBindableInterfaces.put(hostAddress, bi); if (!foundExistingVPNIP && bindableAddress.equals(vpnIP)) { foundExistingVPNIP = true; } } } } // Find a Network Interface that has an address that starts with 10. NetworkAdminNetworkInterface[] interfaces = networkAdmin.getInterfaces(); /* Test reverse * for (int i = 0; i < interfaces.length / 2; i++) { NetworkAdminNetworkInterface temp = interfaces[i]; interfaces[i] = interfaces[interfaces.length - i - 1]; interfaces[interfaces.length - i - 1] = temp; } /**/ for (NetworkAdminNetworkInterface networkAdminInterface : interfaces) { NetworkAdminNetworkInterfaceAddress[] addresses = networkAdminInterface.getAddresses(); for (NetworkAdminNetworkInterfaceAddress a : addresses) { InetAddress address = a.getAddress(); if (address instanceof Inet4Address) { if (matchesVPNIP(address, null)) { String hostAddress = address.getHostAddress(); BindableInterface bi = mapBindableInterfaces.get(hostAddress); if (bi == null) { bi = new BindableInterface(address, NetUtils.getByName(networkAdminInterface.getName())); mapBindableInterfaces.put(hostAddress, bi); if (!foundExistingVPNIP && address.equals(vpnIP)) { foundExistingVPNIP = true; } } } } } } if (vpnIP != null && !foundExistingVPNIP) { String niName = "Unknown Interface"; try { NetworkInterface networkInterface = NetUtils.getByInetAddress(currentBindIP); niName = networkInterface.getName() + " (" + networkInterface.getDisplayName() + ")"; } catch (Throwable e) { } addReply(sReply, CHAR_WARN, "vpnhelper.existing.not.found", new String[] { "" + currentBindIP, niName }); if (numLoops == 0) { try { Field fldLastNICheck = NetUtils.class.getDeclaredField("last_ni_check"); fldLastNICheck.setAccessible(true); fldLastNICheck.set(null, Long.valueOf(-1)); return handleFindBindingAddress(currentBindIP, sReply, ++numLoops); } catch (Throwable t) { t.printStackTrace(); } } } BindableInterface[] array = mapBindableInterfaces.values().toArray(new BindableInterface[0]); Arrays.sort(array); for (BindableInterface bi : array) { if (!bi.isValidPrefixLength(minSubnetMaskBitCount)) { addReply(sReply, CHAR_WARN, "vpnhelper.submask.too.broad", new String[] { "" + bi.address, bi.networkInterface == null ? "null" : bi.networkInterface.getName() + " (" + bi.networkInterface.getDisplayName() + ")", "" + bi.networkPrefixLength, "" + minSubnetMaskBitCount }); } else if (bi.canReach) { addReply(sReply, CHAR_GOOD, "vpnhelper.found.bindable.vpn", new String[] { "" + bi.address, bi.networkInterface == null ? "null" : bi.networkInterface.getName() + " (" + bi.networkInterface.getDisplayName() + ")" }); } else { addReply(sReply, CHAR_WARN, "vpnhelper.not.reachable", new String[] { "" + bi.address, bi.networkInterface == null ? "null" : bi.networkInterface.getName() + " (" + bi.networkInterface.getDisplayName() + ")" }); } PluginVPNHelper.log("subnet: " + bi.networkPrefixLength + "; Score: " + bi.score); } newBind = array.length > 0 && array[0].canReach && array[0].isValidPrefixLength(minSubnetMaskBitCount) ? array[0] : null; InetAddress localAddress = null; // Check if default routing goes through 10.*, by connecting to address // via socket. Address doesn't need to be reachable, just routable. // This works on Windows, but on Mac returns a wildcard address DatagramSocket socket = new DatagramSocket(); try { socket.connect(testSocketAddress, 0); localAddress = socket.getLocalAddress(); } finally { socket.close(); } if (localAddress != null && !localAddress.isAnyLocalAddress()) { NetworkInterface networkInterface = NetUtils.getByInetAddress(localAddress); s = texts.getLocalisedMessageText("vpnhelper.nonvuze.probable.route", new String[] { "" + localAddress, networkInterface == null ? "null" : networkInterface.getName() + " (" + networkInterface.getDisplayName() + ")" }); if ((localAddress instanceof Inet4Address) && matchesVPNIP(localAddress, networkInterface)) { if (newBind == null) { int networkPrefixLength = getNetworkPrefixLength(networkInterface, localAddress); if (networkPrefixLength >= 0 && networkPrefixLength < minSubnetMaskBitCount) { s = null; addReply(sReply, CHAR_WARN, "vpnhelper.nonvuze.submask.too.broad", new String[] { "" + localAddress, networkInterface == null ? "null" : networkInterface.getName() + " (" + networkInterface.getDisplayName() + ")", "" + networkPrefixLength, "" + minSubnetMaskBitCount }); } else if (!canReach(localAddress)) { addReply(sReply, CHAR_WARN, "vpnhelper.not.reachable", new String[] { "" + localAddress, networkInterface == null ? "null" : networkInterface.getName() + " (" + networkInterface.getDisplayName() + ")" }); } else { newBind = new BindableInterface(localAddress, networkInterface); s = CHAR_GOOD + " " + s + " " + texts.getLocalisedMessageText("vpnhelper.assuming.vpn"); } } else if (localAddress.equals(newBind.address)) { s = CHAR_GOOD + " " + s + " " + texts.getLocalisedMessageText("vpnhelper.same.address"); } else { // Vuze not bound. We already found a boundable address, but it's not this one /* Possibly good case: * - Vuze: unbound * - Found Bindable: 10.100.1.6 * - Default Routing: 10.255.1.1 * -> Split network */ if (newStatusID != STATUS_ID_BAD) { newStatusID = STATUS_ID_WARN; } s = CHAR_WARN + " " + s + " " + texts.getLocalisedMessageText("vpnhelper.not.same.future.address") + " " + texts.getLocalisedMessageText("default.routing.not.vpn.network.splitting") + " " + texts.getLocalisedMessageText( "default.routing.not.vpn.network.splitting.unbound"); } if (s != null) { addLiteralReply(sReply, s); } } else { s = CHAR_WARN + " " + s; if (!currentBindIP.isLoopbackAddress()) { s += " " + texts.getLocalisedMessageText("default.routing.not.vpn.network.splitting"); } if (newBind == null) { if (newStatusID != STATUS_ID_BAD) { newStatusID = STATUS_ID_WARN; } s += " " + texts .getLocalisedMessageText("default.routing.not.vpn.network.splitting.unbound"); } addLiteralReply(sReply, s); } } } catch (Exception e) { e.printStackTrace(); addReply(sReply, CHAR_BAD, "vpnhelper.nat.error", new String[] { e.toString() }); } if (newBind == null) { addReply(sReply, CHAR_BAD, "vpnhelper.vpn.ip.detect.fail"); String configBindIP = config.getCoreStringParameter(PluginConfig.CORE_PARAM_STRING_LOCAL_BIND_IP); if (configBindIP != null && configBindIP.length() > 0) { addReply(sReply, CHAR_WARN, "vpnhelper" + (currentBindIP.isLoopbackAddress() ? ".existing.bind.kept.loopback" : ".existing.bind.kept"), new String[] { configBindIP }); if (currentBindIP.isLoopbackAddress()) { if (numLoops == 0) { try { Field fldLastNICheck = NetUtils.class.getDeclaredField("last_ni_check"); fldLastNICheck.setAccessible(true); fldLastNICheck.set(null, Long.valueOf(-1)); return handleFindBindingAddress(currentBindIP, sReply, ++numLoops); } catch (Throwable t) { t.printStackTrace(); } } } } return STATUS_ID_BAD; } rebindNetworkInterface(newBind.networkInterface, newBind.address, sReply); return newStatusID; }
From source file:org.openchaos.android.fooping.service.PingService.java
private void sendMessage(final JSONObject json) { boolean encrypt = prefs.getBoolean("SendAES", false); boolean compress = prefs.getBoolean("SendGZIP", false); String exchangeHost = prefs.getString("ExchangeHost", null); int exchangePort = Integer.valueOf(prefs.getString("ExchangePort", "-1")); if (encrypt) { if (skeySpec == null) { try { skeySpec = new SecretKeySpec(MessageDigest.getInstance("SHA-256") .digest(prefs.getString("ExchangeKey", null).getBytes("US-ASCII")), "AES"); } catch (Exception e) { Log.e(tag, e.toString()); e.printStackTrace();/*from w w w.j a va2 s . co m*/ } } if (cipher == null) { try { cipher = Cipher.getInstance("AES/CFB8/NoPadding"); } catch (Exception e) { Log.e(tag, e.toString()); e.printStackTrace(); } } if (skeySpec == null || cipher == null) { Log.e(tag, "Encryption requested but not available"); throw new AssertionError(); } } if (exchangeHost == null || exchangePort <= 0 || exchangePort >= 65536) { Log.e(tag, "Invalid server name or port"); throw new AssertionError(); } try { ByteArrayOutputStream baos = new ByteArrayOutputStream(); CipherOutputStream cos = null; GZIPOutputStream zos = null; // TODO: send protocol header to signal compression & encryption if (encrypt) { cipher.init(Cipher.ENCRYPT_MODE, skeySpec); cos = new CipherOutputStream(baos, cipher); // write iv block baos.write(cipher.getIV()); } final byte[] message = new JSONArray().put(json).toString().getBytes(); if (compress) { zos = new GZIPOutputStream((encrypt) ? (cos) : (baos)); zos.write(message); zos.finish(); zos.close(); if (encrypt) { cos.close(); } } else if (encrypt) { cos.write(message); cos.close(); } else { baos.write(message); } baos.flush(); final byte[] output = baos.toByteArray(); baos.close(); // path MTU is the actual limit here, not only local MTU // TODO: make packet fragmentable (clear DF flag) if (output.length > 1500) { Log.w(tag, "Message probably too long: " + output.length + " bytes"); } DatagramSocket socket = new DatagramSocket(); // socket.setTrafficClass(0x04 | 0x02); // IPTOS_RELIABILITY | IPTOS_LOWCOST socket.send( new DatagramPacket(output, output.length, InetAddress.getByName(exchangeHost), exchangePort)); socket.close(); Log.d(tag, "message sent: " + output.length + " bytes (raw: " + message.length + " bytes)"); } catch (Exception e) { Log.e(tag, e.toString()); e.printStackTrace(); } }
From source file:vitro.vgw.wsiadapter.WSIAdapterCoap.java
private int dtnResourcesRequest(Node node) throws WSIAdapterException, IOException { int requestMsgId = UNDEFINED_COAP_MESSAGE_ID; // TODO: ??? we will use the packetID as a message ID to return. String proxyAddress = getProxyAddress(node); if (proxyAddress != null) { int packetID = UNDEFINED_COAP_MESSAGE_ID; do { //while loop to avoid a packetID that exists in the array that is to be ignored! packetID = random.nextInt(65535) + 1; } while (timedOut_DTN_CoapMessageIDsList.contains(Integer.valueOf(packetID)) || packetID == UNDEFINED_COAP_MESSAGE_ID); String msgString = Integer.toString(packetID) + "#" + node.getId() + "#" + RESOURCE_REQ + "#wkc"; byte[] msgBytes = new byte[Constants.DTN_MESSAGE_SIZE]; msgBytes = msgString.getBytes(); DatagramPacket sendPacket = new DatagramPacket(msgBytes, msgBytes.length, InetAddress.getByName(proxyAddress), Constants.PROXY_UDPFORWARDER_PORT); DatagramSocket clientSocket = new DatagramSocket(); clientSocket.send(sendPacket);//from w ww.ja va2s . co m clientSocket.close(); requestMsgId = packetID; logger.info("Sent Request: " + msgString); } else { logger.warn("No available proxy for Node " + node.getId() + " is found"); throw new WSIAdapterException("No available proxy for Node " + node.getId() + " is found"); } return requestMsgId; }
From source file:com.vuze.plugin.azVPN_PIA.Checker.java
private int handleBound(InetAddress bindIP, StringBuilder sReply) { int newStatusID = STATUS_ID_OK; String s;/*from ww w .j a va 2 s . c o m*/ boolean isGoodExistingBind = matchesVPNIP(bindIP); if (isGoodExistingBind) { String niName = "Unknown Interface"; try { NetworkInterface networkInterface = NetworkInterface.getByInetAddress(bindIP); niName = networkInterface.getName() + " (" + networkInterface.getDisplayName() + ")"; } catch (Throwable e) { } addReply(sReply, CHAR_GOOD, "pia.bound.good", new String[] { "" + bindIP, niName }); vpnIP = bindIP; } else { addReply(sReply, CHAR_BAD, "pia.bound.bad", new String[] { "" + bindIP }); newStatusID = STATUS_ID_BAD; } try { // Check if default routing goes through 10.*, by connecting to address // via socket. Address doesn't need to be reachable, just routable. // This works on Windows (in some cases), but on Mac returns a wildcard // address DatagramSocket socket = new DatagramSocket(); socket.connect(testSocketAddress, 0); InetAddress localAddress = socket.getLocalAddress(); socket.close(); if (!localAddress.isAnyLocalAddress()) { NetworkInterface networkInterface = NetworkInterface.getByInetAddress(localAddress); s = texts.getLocalisedMessageText("pia.nonvuze.probable.route", new String[] { "" + localAddress, networkInterface.getName() + " (" + networkInterface.getDisplayName() + ")" }); char replyChar = ' '; if ((localAddress instanceof Inet4Address) && matchesVPNIP(localAddress)) { if (localAddress.equals(bindIP)) { replyChar = isGoodExistingBind ? CHAR_GOOD : CHAR_WARN; s += " " + texts.getLocalisedMessageText("pia.same.as.vuze"); } else { // Vuze is bound, default routing goes somewhere else // This is ok, since Vuze will not accept incoming from "somewhere else" // We'll warn, but not update the status id replyChar = CHAR_WARN; s += " " + texts.getLocalisedMessageText("pia.not.same"); if (isGoodExistingBind) { s += " " + texts.getLocalisedMessageText("default.routing.not.vpn.network.splitting"); } } addLiteralReply(sReply, replyChar + " " + s); if (!isGoodExistingBind && rebindNetworkInterface) { rebindNetworkInterface(networkInterface, localAddress, sReply); // Should we redo test? } } else { // Vuze is bound, default routing goes to somewhere else. // Probably network splitting replyChar = isGoodExistingBind ? CHAR_WARN : CHAR_BAD; if (isGoodExistingBind) { s += " " + texts.getLocalisedMessageText("default.routing.not.vpn.network.splitting"); } addLiteralReply(sReply, replyChar + " " + s); } } } catch (Throwable t) { t.printStackTrace(); } return newStatusID; }
From source file:com.clustercontrol.notify.util.SendSyslog.java
private void sendUdpMsg(InetAddress ipAddress, int port, String msg) throws IOException { DatagramSocket soc = null;/* w w w . j ava 2s . com*/ try { // ?????? soc = new DatagramSocket(); // ?? DatagramPacket sendPacket = null; // sendPacket = new DatagramPacket(msg.getBytes(), msg.getBytes().length, ipAddress, port); soc.send(sendPacket); } finally { if (soc != null) { soc.close(); } } }
From source file:vitro.vgw.wsiadapter.WSIAdapterCoap.java
private int dtnObservationRequest(Node node, Resource resource) throws VitroGatewayException, IOException { int requestMsgId = UNDEFINED_COAP_MESSAGE_ID; // TODO: ??? we will use the packetID as a message ID to return. String proxyAddress = getProxyAddress(node); if (proxyAddress != null) { String moteUriResource = ""; if (MoteResource.containsValue(resource)) { //moteUriResource += MoteResource.getMoteUriResource(resource); String theResourceName = MoteResource.getMoteUriResource(resource); if (theResourceName == null) { logger.error("unsupported resource"); return UNDEFINED_COAP_MESSAGE_ID; }/* ww w. ja v a2 s . co m*/ // FOR TCS adapter, we prefer the TEMPERATURE_TCS // FOR WLAB and HAI we prefer the TEMPERATURE_ALT // we do this check because the getMoteUriResource is making a reverse lookup in the hashmap (where two keys point to the same resource) if (theResourceName.compareToIgnoreCase(MoteResource.TEMPERATURE_TCS) == 0) { theResourceName = MoteResource.TEMPERATURE_ALT; } moteUriResource += theResourceName; int packetID = UNDEFINED_COAP_MESSAGE_ID; do { //while loop to avoid a packetID that exists in the array that is to be ignored! packetID = random.nextInt(65535) + 1; } while (timedOut_DTN_CoapMessageIDsList.contains(Integer.valueOf(packetID)) || packetID == UNDEFINED_COAP_MESSAGE_ID); String msgString = packetID + "#" + node.getId() + "#" + RESOURCE_REQ + "#" + moteUriResource; byte[] msgBytes = new byte[Constants.DTN_MESSAGE_SIZE]; msgBytes = msgString.getBytes(); DatagramPacket sendPacket = new DatagramPacket(msgBytes, msgBytes.length, InetAddress.getByName(proxyAddress), Constants.PROXY_UDPFORWARDER_PORT); DatagramSocket clientSocket = new DatagramSocket(); clientSocket.send(sendPacket); clientSocket.close(); requestMsgId = packetID; logger.info("Sent Request: " + msgString); } else { logger.warn("No resource mapping for Node " + node.getId() + " and Resource " + resource.getName()); throw new WSIAdapterException( "No resource mapping for Node " + node.getId() + " and Resource " + resource.getName()); } } else { logger.warn("No available proxy for Node " + node.getId() + " is found"); throw new WSIAdapterException("No available proxy for Node " + node.getId() + " is found"); } return requestMsgId; }
From source file:vitro.vgw.wsiadapter.WSIAdapterCoapHAI.java
private int dtnObservationRequest(Node node, Resource resource) throws VitroGatewayException, IOException { int requestMsgId = UNDEFINED_COAP_MESSAGE_ID; // TODO: ??? we will use the packetID as a message ID to return. String proxyAddress = getProxyAddress(node); if (proxyAddress != null) { String moteUriResource = ""; if (MoteResource.containsValue(resource)) { //moteUriResource += MoteResource.getMoteUriResource(resource); String theResourceName = MoteResource.getMoteUriResource(resource); if (theResourceName == null) { logger.error("unsupported resource"); return UNDEFINED_COAP_MESSAGE_ID; }/* ww w . j ava2s . c om*/ // FOR TCS adapter, we prefer the TEMPERATURE_TCS // FOR WLAB and HAI we prefer the TEMPERATURE_ALT // we do this check because the getMoteUriResource is making a reverse lookup in the hashmap (where two keys point to the same resource) if (theResourceName.compareToIgnoreCase(MoteResource.TEMPERATURE_TCS) == 0) { theResourceName = MoteResource.TEMPERATURE_ALT; } moteUriResource += theResourceName; int packetID = UNDEFINED_COAP_MESSAGE_ID; do { //while loop to avoid a packetID that exists in the array that is to be ignored! packetID = random.nextInt(65535) + 1; } while (timedOut_DTN_CoapMessageIDsList.contains(Integer.valueOf(packetID)) || packetID == UNDEFINED_COAP_MESSAGE_ID); String msgString = packetID + "#" + node.getId() + "#" + RESOURCE_REQ + "#" + moteUriResource; byte[] msgBytes = new byte[Constants.DTN_MESSAGE_SIZE]; msgBytes = msgString.getBytes(); DatagramPacket sendPacket = new DatagramPacket(msgBytes, msgBytes.length, InetAddress.getByName(proxyAddress), Constants.PROXY_UDPFORWARDER_PORT); DatagramSocket clientSocket = new DatagramSocket(); clientSocket.send(sendPacket); clientSocket.close(); requestMsgId = packetID; logger.info("Sent Request: " + msgString); } else { logger.warn("No resource mapping for Node " + node.getId() + " and Resource " + resource.getName()); throw new WSIAdapterException( "No resource mapping for Node " + node.getId() + " and Resource " + resource.getName()); } } else { logger.warn("No available proxy for Node " + node.getId() + " is found"); throw new WSIAdapterException("No available proxy for Node " + node.getId() + " is found"); } return requestMsgId; }