Examples with NetworkInterface java.net.NetworkInterface used on opensource projects

Example 86 with NetworkInterface

use of java.net.NetworkInterface in project Openfire by igniterealtime.

the class LocalIPResolver method getLocalIP.

public static String getLocalIP() {
    if (overrideIp != null && overrideIp.length() >= 7) {
        return overrideIp;
    }
    Enumeration ifaces;
    try {
        ifaces = NetworkInterface.getNetworkInterfaces();
        while (ifaces.hasMoreElements()) {
            NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
            Enumeration iaddresses = iface.getInetAddresses();
            while (iaddresses.hasMoreElements()) {
                InetAddress iaddress = (InetAddress) iaddresses.nextElement();
                if (!iaddress.isLoopbackAddress() && !iaddress.isLinkLocalAddress() && !iaddress.isSiteLocalAddress()) {
                    return iaddress.getHostAddress() != null ? iaddress.getHostAddress() : iaddress.getHostName();
                }
            }
        }
        ifaces = NetworkInterface.getNetworkInterfaces();
        while (ifaces.hasMoreElements()) {
            NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
            Enumeration iaddresses = iface.getInetAddresses();
            while (iaddresses.hasMoreElements()) {
                InetAddress iaddress = (InetAddress) iaddresses.nextElement();
                if (!iaddress.isLoopbackAddress() && !iaddress.isLinkLocalAddress()) {
                    return iaddress.getHostAddress() != null ? iaddress.getHostAddress() : iaddress.getHostName();
                }
            }
        }
        return InetAddress.getLocalHost().getHostAddress() != null ? InetAddress.getLocalHost().getHostAddress() : InetAddress.getLocalHost().getHostName();
    } catch (SocketException e) {
        e.printStackTrace();
    } catch (UnknownHostException e) {
        e.printStackTrace();
    }
    return "127.0.0.1";
}

Example 87 with NetworkInterface

use of java.net.NetworkInterface in project screenbird by adamhub.

the class MediaUtil method getMacAddress.

/**
     * Returns the MAC address for the current computer.
     * @return 
     */
public static String getMacAddress() {
    StringBuilder macAddress = new StringBuilder();
    try {
        InetAddress address = InetAddress.getLocalHost();
        NetworkInterface ni = NetworkInterface.getByInetAddress(address);
        byte[] mac = ni.getHardwareAddress();
        for (int i = 0; i < mac.length; i++) {
            macAddress.append(String.format("%02X%s", mac[i], (i < mac.length - 1) ? "" : ""));
        }
    } catch (SocketException e) {
        log(e);
    } catch (UnknownHostException e) {
        log(e);
    }
    return macAddress.toString();
}

Example 88 with NetworkInterface

use of java.net.NetworkInterface in project ats-framework by Axway.

the class HostUtils method getIpAddressesList.

/**
     * Return a list with addresses.
     * if called with true, it will try to return the first IPv4 address or if there isn't such - the last IPv6 address
     * if called with false, it will return a list with all IP addresses
     *
     * @return
     */
private static List<InetAddress> getIpAddressesList(boolean exitOnFirstIPv4) {
    //list containing all ip addresses
    List<InetAddress> ipList = new ArrayList<InetAddress>();
    try {
        // cycle all net interfaces
        Enumeration<NetworkInterface> netInterfaces = NetworkInterface.getNetworkInterfaces();
        while (netInterfaces.hasMoreElements()) {
            NetworkInterface netInterface = (NetworkInterface) netInterfaces.nextElement();
            if (!netInterface.isLoopback()) {
                // for each net interface cycle all IP addresses
                Enumeration<InetAddress> ipAddresses = netInterface.getInetAddresses();
                InetAddress ipAddress = null;
                while (ipAddresses.hasMoreElements()) {
                    ipAddress = (InetAddress) ipAddresses.nextElement();
                    if (ipAddress instanceof java.net.Inet4Address) {
                        Inet4Address ipv4 = (Inet4Address) ipAddress;
                        if (!ipv4.isLoopbackAddress() && !LOCAL_HOST_NAME.equals(ipv4.getCanonicalHostName()) && !LOCAL_HOST_IPv4.equals(ipv4.getCanonicalHostName())) {
                            // we found an appropriate IPv4 address
                            ipList.add(ipv4);
                            if (exitOnFirstIPv4) {
                                break;
                            }
                        }
                    } else //if( ip instanceof java.net.Inet6Address )
                    {
                        Inet6Address ipv6 = (Inet6Address) ipAddress;
                        // FIXME: currently we do not filter out the temporary IPv6 addresses
                        if (!ipv6.isLinkLocalAddress() && !LOCAL_HOST_IPv6.equals(ipv6.getCanonicalHostName())) {
                            // We found an appropriate IPv6 address. Add it to the list, but keep searching for an appropriate IPv4 address.
                            ipList.add(ipv6);
                        }
                    }
                }
            }
        }
    } catch (SocketException se) {
        log.error("Error obtaining the local host address", se);
    }
    /*
         * We will return either list with the IP addresses or empty list
         */
    if (exitOnFirstIPv4 && !ipList.isEmpty()) {
        int listSize = ipList.size();
        return ipList.subList(listSize - 1, listSize);
    }
    return ipList;
}

Example 89 with NetworkInterface

use of java.net.NetworkInterface in project ats-framework by Axway.

the class HostUtils method isLocalHost.

/**
     * Tells if host is the local host. Note it will return true if:
     * <ul>
     * <li>host is null,</li>
     * <li>empty string,</li>
     * <li>IP of the local host including 127.0.0.1,</li>
     * <li>the name of the local host including &quot;localhost&quot;.</li>
     * </ul>
     * Otherwise it will return false.
     *
     * @param host
     *            the host to check
     * @return if host is the local host
     */
public static boolean isLocalHost(String host) {
    if (StringUtils.isNullOrEmpty(host)) {
        // we assume a local host
        return true;
    } else if (localHosts.contains(host)) {
        // we already know this is a local host
        return true;
    } else if (nonlocalHosts.contains(host)) {
        // we already know this is not a local host
        return false;
    } else {
        // unknown host, check if it is local or not
        Enumeration<NetworkInterface> netInterfaces = null;
        try {
            netInterfaces = NetworkInterface.getNetworkInterfaces();
        } catch (SocketException e) {
            // we hope this will never happen
            log.error("Error obtaining info about this system's network interfaces. We will assume '" + host + "' is a local host", e);
            return true;
        }
        while (netInterfaces.hasMoreElements()) {
            NetworkInterface netInterface = netInterfaces.nextElement();
            Enumeration<InetAddress> inetAddresses = netInterface.getInetAddresses();
            while (inetAddresses.hasMoreElements()) {
                InetAddress inetAddress = inetAddresses.nextElement();
                String hostAddress = inetAddress.getHostAddress();
                if (inetAddress instanceof Inet6Address) {
                    if (hostAddress != null && stripIPv6InterfaceId(compressIPv6Address(host)).equalsIgnoreCase(stripIPv6InterfaceId(compressIPv6Address(hostAddress)))) {
                        localHosts.add(host);
                        return true;
                    }
                } else if (host.equalsIgnoreCase(hostAddress)) {
                    localHosts.add(host);
                    return true;
                }
                String hostName = inetAddress.getHostName();
                if (host.equalsIgnoreCase(hostName)) {
                    localHosts.add(host);
                    return true;
                }
            }
        }
        nonlocalHosts.add(host);
        return false;
    }
}

Example 90 with NetworkInterface

use of java.net.NetworkInterface in project kcanotify by antest1.

the class KcaVpnService method getBuilder.

private Builder getBuilder(List<Rule> listAllowed, List<Rule> listRule) {
    SharedPreferences prefs = getSharedPreferences("pref", Context.MODE_PRIVATE);
    boolean subnet = prefs.getBoolean("subnet", false);
    boolean tethering = prefs.getBoolean("tethering", false);
    boolean lan = prefs.getBoolean("lan", false);
    boolean ip6 = prefs.getBoolean("ip6", true);
    boolean filter = prefs.getBoolean("filter", false);
    boolean system = prefs.getBoolean("manage_system", false);
    // Build VPN service
    Builder builder = new Builder();
    builder.setSession(getString(R.string.app_name));
    // VPN address
    String vpn4 = prefs.getString("vpn4", "10.1.10.1");
    Log.i(TAG, "vpn4=" + vpn4);
    builder.addAddress(vpn4, 32);
    if (ip6) {
        String vpn6 = prefs.getString("vpn6", "fd00:1:fd00:1:fd00:1:fd00:1");
        Log.i(TAG, "vpn6=" + vpn6);
        builder.addAddress(vpn6, 128);
    }
    // DNS address
    if (filter)
        for (InetAddress dns : getDns(KcaVpnService.this)) {
            if (ip6 || dns instanceof Inet4Address) {
                Log.i(TAG, "dns=" + dns);
                builder.addDnsServer(dns);
            }
        }
    // Subnet routing
    if (subnet) {
        // Exclude IP ranges
        List<IPUtil.CIDR> listExclude = new ArrayList<>();
        // localhost
        listExclude.add(new IPUtil.CIDR("127.0.0.0", 8));
        if (tethering) {
            // USB tethering 192.168.42.x
            // Wi-Fi tethering 192.168.43.x
            listExclude.add(new IPUtil.CIDR("192.168.42.0", 23));
            // Wi-Fi direct 192.168.49.x
            listExclude.add(new IPUtil.CIDR("192.168.49.0", 24));
        }
        if (lan) {
            try {
                Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
                while (nis.hasMoreElements()) {
                    NetworkInterface ni = nis.nextElement();
                    if (ni != null && ni.isUp() && !ni.isLoopback() && ni.getName() != null && !ni.getName().startsWith("tun"))
                        for (InterfaceAddress ia : ni.getInterfaceAddresses()) if (ia.getAddress() instanceof Inet4Address) {
                            IPUtil.CIDR local = new IPUtil.CIDR(ia.getAddress(), ia.getNetworkPrefixLength());
                            Log.i(TAG, "Excluding " + ni.getName() + " " + local);
                            listExclude.add(local);
                        }
                }
            } catch (SocketException ex) {
                Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
            }
        }
        Configuration config = getResources().getConfiguration();
        if (config.mcc == 310 && config.mnc == 260) {
            // T-Mobile Wi-Fi calling
            listExclude.add(new IPUtil.CIDR("66.94.2.0", 24));
            listExclude.add(new IPUtil.CIDR("66.94.6.0", 23));
            listExclude.add(new IPUtil.CIDR("66.94.8.0", 22));
            listExclude.add(new IPUtil.CIDR("208.54.0.0", 16));
        }
        // broadcast
        listExclude.add(new IPUtil.CIDR("224.0.0.0", 3));
        Collections.sort(listExclude);
        try {
            InetAddress start = InetAddress.getByName("0.0.0.0");
            for (IPUtil.CIDR exclude : listExclude) {
                Log.i(TAG, "Exclude " + exclude.getStart().getHostAddress() + "..." + exclude.getEnd().getHostAddress());
                for (IPUtil.CIDR include : IPUtil.toCIDR(start, IPUtil.minus1(exclude.getStart()))) try {
                    builder.addRoute(include.address, include.prefix);
                } catch (Throwable ex) {
                    Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
                }
                start = IPUtil.plus1(exclude.getEnd());
            }
            for (IPUtil.CIDR include : IPUtil.toCIDR("224.0.0.0", "255.255.255.255")) try {
                builder.addRoute(include.address, include.prefix);
            } catch (Throwable ex) {
                Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
            }
        } catch (UnknownHostException ex) {
            Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
        }
    } else {
        String addresses = prefs.getString("bypass_address", "");
        if (!addresses.equals("")) {
            List<IPUtil.CIDR> listExclude = new ArrayList<>();
            for (String cidr : addresses.split(",")) {
                String[] cidr_split = cidr.trim().split("/");
                listExclude.add(new IPUtil.CIDR(cidr_split[0], Integer.parseInt(cidr_split[1])));
            }
            Collections.sort(listExclude);
            try {
                InetAddress start = InetAddress.getByName("0.0.0.0");
                for (IPUtil.CIDR exclude : listExclude) {
                    for (IPUtil.CIDR include : IPUtil.toCIDR(start, IPUtil.minus1(exclude.getStart()))) try {
                        builder.addRoute(include.address, include.prefix);
                    } catch (Throwable ex) {
                        Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
                    }
                    start = IPUtil.plus1(exclude.getEnd());
                }
                for (IPUtil.CIDR include : IPUtil.toCIDR(start.getHostAddress(), "255.255.255.255")) try {
                    builder.addRoute(include.address, include.prefix);
                } catch (Throwable ex) {
                    Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
                }
            } catch (UnknownHostException ex) {
                Log.e(TAG, ex.toString() + "\n" + Log.getStackTraceString(ex));
            }
        } else
            builder.addRoute("0.0.0.0", 0);
    }
    Log.i(TAG, "IPv6=" + ip6);
    if (ip6)
        builder.addRoute("0:0:0:0:0:0:0:0", 0);
    // MTU
    int mtu = jni_get_mtu();
    Log.i(TAG, "MTU=" + mtu);
    builder.setMtu(mtu);
    return builder;
}