Examples with Inet6Address java.net.Inet6Address used on opensource projects

Example 66 with Inet6Address

use of java.net.Inet6Address in project android_packages_apps_Settings by DirtyUnicorns.

the class WifiDetailPreferenceController method updateIpLayerInfo.

private void updateIpLayerInfo() {
    mSignInButton.setVisibility(canSignIntoNetwork() ? View.VISIBLE : View.INVISIBLE);
    mButtonsPref.setVisible(mForgetButton.getVisibility() == View.VISIBLE || mSignInButton.getVisibility() == View.VISIBLE);
    if (mNetwork == null || mLinkProperties == null) {
        mIpAddressPref.setVisible(false);
        mSubnetPref.setVisible(false);
        mGatewayPref.setVisible(false);
        mDnsPref.setVisible(false);
        mIpv6Category.setVisible(false);
        return;
    }
    // Find IPv4 and IPv6 addresses.
    String ipv4Address = null;
    String subnet = null;
    StringJoiner ipv6Addresses = new StringJoiner("\n");
    for (LinkAddress addr : mLinkProperties.getLinkAddresses()) {
        if (addr.getAddress() instanceof Inet4Address) {
            ipv4Address = addr.getAddress().getHostAddress();
            subnet = ipv4PrefixLengthToSubnetMask(addr.getPrefixLength());
        } else if (addr.getAddress() instanceof Inet6Address) {
            ipv6Addresses.add(addr.getAddress().getHostAddress());
        }
    }
    // Find IPv4 default gateway.
    String gateway = null;
    for (RouteInfo routeInfo : mLinkProperties.getRoutes()) {
        if (routeInfo.isIPv4Default() && routeInfo.hasGateway()) {
            gateway = routeInfo.getGateway().getHostAddress();
            break;
        }
    }
    // Find all (IPv4 and IPv6) DNS addresses.
    String dnsServers = mLinkProperties.getDnsServers().stream().map(InetAddress::getHostAddress).collect(Collectors.joining("\n"));
    // Update UI.
    updatePreference(mIpAddressPref, ipv4Address);
    updatePreference(mSubnetPref, subnet);
    updatePreference(mGatewayPref, gateway);
    updatePreference(mDnsPref, dnsServers);
    if (ipv6Addresses.length() > 0) {
        mIpv6AddressPref.setSummary(BidiFormatter.getInstance().unicodeWrap(ipv6Addresses.toString()));
        mIpv6Category.setVisible(true);
    } else {
        mIpv6Category.setVisible(false);
    }
}

Example 67 with Inet6Address

use of java.net.Inet6Address in project rocketmq by apache.

the class RemotingUtil method getLocalAddress.

public static String getLocalAddress() {
    try {
        // Traversal Network interface to get the first non-loopback and non-private address
        Enumeration<NetworkInterface> enumeration = NetworkInterface.getNetworkInterfaces();
        ArrayList<String> ipv4Result = new ArrayList<String>();
        ArrayList<String> ipv6Result = new ArrayList<String>();
        while (enumeration.hasMoreElements()) {
            final NetworkInterface networkInterface = enumeration.nextElement();
            final Enumeration<InetAddress> en = networkInterface.getInetAddresses();
            while (en.hasMoreElements()) {
                final InetAddress address = en.nextElement();
                if (!address.isLoopbackAddress()) {
                    if (address instanceof Inet6Address) {
                        ipv6Result.add(normalizeHostAddress(address));
                    } else {
                        ipv4Result.add(normalizeHostAddress(address));
                    }
                }
            }
        }
        // prefer ipv4
        if (!ipv4Result.isEmpty()) {
            for (String ip : ipv4Result) {
                if (ip.startsWith("127.0") || ip.startsWith("192.168")) {
                    continue;
                }
                return ip;
            }
            return ipv4Result.get(ipv4Result.size() - 1);
        } else if (!ipv6Result.isEmpty()) {
            return ipv6Result.get(0);
        }
        // If failed to find,fall back to localhost
        final InetAddress localHost = InetAddress.getLocalHost();
        return normalizeHostAddress(localHost);
    } catch (Exception e) {
        log.error("Failed to obtain local address", e);
    }
    return null;
}

Example 68 with Inet6Address

use of java.net.Inet6Address in project rocketmq by apache.

the class MixAll method getLocalhostByNetworkInterface.

// Reverse logic comparing to RemotingUtil method, consider refactor in RocketMQ 5.0
public static String getLocalhostByNetworkInterface() throws SocketException {
    List<String> candidatesHost = new ArrayList<String>();
    Enumeration<NetworkInterface> enumeration = NetworkInterface.getNetworkInterfaces();
    while (enumeration.hasMoreElements()) {
        NetworkInterface networkInterface = enumeration.nextElement();
        // Workaround for docker0 bridge
        if ("docker0".equals(networkInterface.getName()) || !networkInterface.isUp()) {
            continue;
        }
        Enumeration<InetAddress> addrs = networkInterface.getInetAddresses();
        while (addrs.hasMoreElements()) {
            InetAddress address = addrs.nextElement();
            if (address.isLoopbackAddress()) {
                continue;
            }
            // ip4 highter priority
            if (address instanceof Inet6Address) {
                candidatesHost.add(address.getHostAddress());
                continue;
            }
            return address.getHostAddress();
        }
    }
    if (!candidatesHost.isEmpty()) {
        return candidatesHost.get(0);
    }
    return null;
}

Example 69 with Inet6Address

use of java.net.Inet6Address in project narayana by jbosstm.

the class Utility method calculateHostInetAddr.

private static synchronized void calculateHostInetAddr() throws UnknownHostException {
    if (myAddr == null) {
        myAddr = new long[2];
        myAddr[0] = 0;
        myAddr[1] = 0;
        byte[] b = null;
        InetAddress addr;
        try {
            addr = InetAddress.getLocalHost();
        } catch (final UnknownHostException uhe) {
            tsLogger.i18NLogger.warn_utils_Utility_2();
            addr = InetAddress.getByName(null);
        }
        if (addr instanceof Inet6Address) {
            // 16 bytes to work with.
            b = addr.getAddress();
        } else {
            /*
                 * Convert ipv4 to ipv6
                 * 
                 * We only have 4 bytes here.
                 * 
                 * ::FFFF:129.144.52.38
                 */
            byte[] v4Address = addr.getAddress();
            if (v4Address.length > 4)
                throw new UnknownHostException();
            b = new byte[16];
            for (int i = 0; i < 10; i++) b[i] = 0;
            b[10] = b[11] = (byte) 255;
            System.arraycopy(v4Address, 0, b, 12, v4Address.length);
        }
        for (int i = 0; i < 8; i++) {
            /*
                 * Convert signed byte into unsigned.
                 */
            int l = 0x7f & b[i];
            l += (0x80 & b[i]);
            myAddr[0] = (myAddr[0] << 8) | l;
        }
        for (int i = 8; i < 16; i++) {
            /*
                 * Convert signed byte into unsigned.
                 */
            int l = 0x7f & b[i];
            l += (0x80 & b[i]);
            myAddr[1] = (myAddr[1] << 8) | l;
        }
    }
}

Example 70 with Inet6Address

use of java.net.Inet6Address in project i2p.i2p by i2p.

the class MTU method getMTU.

/**
 * The MTU for the socket interface, if available.
 * Not available for Java 5.
 *
 * Note that we don't return the value for the default interface if
 * we can't find the address. Finding the default interface is hard,
 * altough we could perhaps just look for the first non-loopback address.
 * But the MTU of the default route probably isn't relevant.
 *
 * @param ia null ok
 * @return 0 if Java 5, or if not bound to an address;
 *         limited to range MIN_MTU to LARGE_MTU.
 */
public static int getMTU(InetAddress ia) {
    if (ia == null || !hasMTU)
        return 0;
    Enumeration<NetworkInterface> ifcs;
    try {
        ifcs = NetworkInterface.getNetworkInterfaces();
    } catch (SocketException se) {
        return 0;
    } catch (java.lang.Error e) {
        // at net.i2p.util.Addresses.getAddresses ...
        return 0;
    }
    if (ifcs != null) {
        while (ifcs.hasMoreElements()) {
            NetworkInterface ifc = ifcs.nextElement();
            for (Enumeration<InetAddress> addrs = ifc.getInetAddresses(); addrs.hasMoreElements(); ) {
                InetAddress addr = addrs.nextElement();
                if (ia.equals(addr)) {
                    try {
                        // testing
                        // return ifc.getMTU();
                        boolean isIPv6 = addr instanceof Inet6Address;
                        int mtu = ifc.getMTU();
                        if ((isIPv6 && mtu < PeerState.MIN_IPV6_MTU) || (!isIPv6 && mtu < PeerState.MIN_MTU)) {
                            Log log = I2PAppContext.getGlobalContext().logManager().getLog(MTU.class);
                            log.logAlways(Log.WARN, "Unusually low MTU " + mtu + " for interface " + ia + ", consider disabling");
                        }
                        return rectify(isIPv6, mtu);
                    } catch (SocketException se) {
                    // ignore
                    } catch (Throwable t) {
                        // version detection wrong or the JVM doesn't support it
                        return 0;
                    }
                }
            }
        }
    }
    return 0;
}