Examples with Inet4Address java.net.Inet4Address used on opensource projects

Example 56 with Inet4Address

use of java.net.Inet4Address in project android_frameworks_base by DirtyUnicorns.

the class LinkAddressTest method testConstructors.

public void testConstructors() throws SocketException {
    LinkAddress address;
    // Valid addresses work as expected.
    address = new LinkAddress(V4_ADDRESS, 25);
    assertEquals(V4_ADDRESS, address.getAddress());
    assertEquals(25, address.getPrefixLength());
    assertEquals(0, address.getFlags());
    assertEquals(RT_SCOPE_UNIVERSE, address.getScope());
    address = new LinkAddress(V6_ADDRESS, 127);
    assertEquals(V6_ADDRESS, address.getAddress());
    assertEquals(127, address.getPrefixLength());
    assertEquals(0, address.getFlags());
    assertEquals(RT_SCOPE_UNIVERSE, address.getScope());
    // Nonsensical flags/scopes or combinations thereof are acceptable.
    address = new LinkAddress(V6 + "/64", IFA_F_DEPRECATED | IFA_F_PERMANENT, RT_SCOPE_LINK);
    assertEquals(V6_ADDRESS, address.getAddress());
    assertEquals(64, address.getPrefixLength());
    assertEquals(IFA_F_DEPRECATED | IFA_F_PERMANENT, address.getFlags());
    assertEquals(RT_SCOPE_LINK, address.getScope());
    address = new LinkAddress(V4 + "/23", 123, 456);
    assertEquals(V4_ADDRESS, address.getAddress());
    assertEquals(23, address.getPrefixLength());
    assertEquals(123, address.getFlags());
    assertEquals(456, address.getScope());
    // InterfaceAddress doesn't have a constructor. Fetch some from an interface.
    List<InterfaceAddress> addrs = NetworkInterface.getByName("lo").getInterfaceAddresses();
    // We expect to find 127.0.0.1/8 and ::1/128, in any order.
    LinkAddress ipv4Loopback, ipv6Loopback;
    assertEquals(2, addrs.size());
    if (addrs.get(0).getAddress() instanceof Inet4Address) {
        ipv4Loopback = new LinkAddress(addrs.get(0));
        ipv6Loopback = new LinkAddress(addrs.get(1));
    } else {
        ipv4Loopback = new LinkAddress(addrs.get(1));
        ipv6Loopback = new LinkAddress(addrs.get(0));
    }
    assertEquals(NetworkUtils.numericToInetAddress("127.0.0.1"), ipv4Loopback.getAddress());
    assertEquals(8, ipv4Loopback.getPrefixLength());
    assertEquals(NetworkUtils.numericToInetAddress("::1"), ipv6Loopback.getAddress());
    assertEquals(128, ipv6Loopback.getPrefixLength());
    // Null addresses are rejected.
    try {
        address = new LinkAddress(null, 24);
        fail("Null InetAddress should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
    try {
        address = new LinkAddress((String) null, IFA_F_PERMANENT, RT_SCOPE_UNIVERSE);
        fail("Null string should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
    try {
        address = new LinkAddress((InterfaceAddress) null);
        fail("Null string should cause NullPointerException");
    } catch (NullPointerException expected) {
    }
    // Invalid prefix lengths are rejected.
    try {
        address = new LinkAddress(V4_ADDRESS, -1);
        fail("Negative IPv4 prefix length should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
    try {
        address = new LinkAddress(V6_ADDRESS, -1);
        fail("Negative IPv6 prefix length should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
    try {
        address = new LinkAddress(V4_ADDRESS, 33);
        fail("/33 IPv4 prefix length should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
    try {
        address = new LinkAddress(V4 + "/33", IFA_F_PERMANENT, RT_SCOPE_UNIVERSE);
        fail("/33 IPv4 prefix length should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
    try {
        address = new LinkAddress(V6_ADDRESS, 129, IFA_F_PERMANENT, RT_SCOPE_UNIVERSE);
        fail("/129 IPv6 prefix length should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
    try {
        address = new LinkAddress(V6 + "/129", IFA_F_PERMANENT, RT_SCOPE_UNIVERSE);
        fail("/129 IPv6 prefix length should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
    // Multicast addresses are rejected.
    try {
        address = new LinkAddress("224.0.0.2/32");
        fail("IPv4 multicast address should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
    try {
        address = new LinkAddress("ff02::1/128");
        fail("IPv6 multicast address should cause IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
}

Example 57 with Inet4Address

use of java.net.Inet4Address in project jdk8u_jdk by JetBrains.

the class ListenAddress method main.

public static void main(String[] args) throws Exception {
    ListeningConnector connector = (ListeningConnector) findConnector("com.sun.jdi.SocketListen");
    // check wildcard address
    check(connector, (InetAddress) null);
    // iterate over all IPv4 addresses and check that binding to
    // that address results in the correct result from startListening(Map)
    Enumeration nifs = NetworkInterface.getNetworkInterfaces();
    while (nifs.hasMoreElements()) {
        NetworkInterface ni = (NetworkInterface) nifs.nextElement();
        Enumeration addrs = ni.getInetAddresses();
        while (addrs.hasMoreElements()) {
            InetAddress addr = (InetAddress) addrs.nextElement();
            // JPDA implementation only currently supports IPv4
            if (!(addr instanceof Inet4Address)) {
                continue;
            }
            check(connector, addr);
        }
    }
    if (failures > 0) {
        throw new RuntimeException(failures + " test(s) failed - see output for details.");
    }
}

Example 58 with Inet4Address

use of java.net.Inet4Address in project android_frameworks_base by DirtyUnicorns.

the class KeepalivePacketData method nattKeepalivePacket.

/**
     * Creates an IPsec NAT-T keepalive packet with the specified parameters.
     */
public static KeepalivePacketData nattKeepalivePacket(InetAddress srcAddress, int srcPort, InetAddress dstAddress, int dstPort) throws InvalidPacketException {
    if (!(srcAddress instanceof Inet4Address) || !(dstAddress instanceof Inet4Address)) {
        throw new InvalidPacketException(ERROR_INVALID_IP_ADDRESS);
    }
    if (dstPort != NATT_PORT) {
        throw new InvalidPacketException(ERROR_INVALID_PORT);
    }
    int length = IPV4_HEADER_LENGTH + UDP_HEADER_LENGTH + 1;
    ByteBuffer buf = ByteBuffer.allocate(length);
    buf.order(ByteOrder.BIG_ENDIAN);
    // IP version and TOS
    buf.putShort((short) 0x4500);
    buf.putShort((short) length);
    // ID, flags, offset
    buf.putInt(0);
    // TTL
    buf.put((byte) 64);
    buf.put((byte) OsConstants.IPPROTO_UDP);
    int ipChecksumOffset = buf.position();
    // IP checksum
    buf.putShort((short) 0);
    buf.put(srcAddress.getAddress());
    buf.put(dstAddress.getAddress());
    buf.putShort((short) srcPort);
    buf.putShort((short) dstPort);
    // UDP length
    buf.putShort((short) (length - 20));
    int udpChecksumOffset = buf.position();
    // UDP checksum
    buf.putShort((short) 0);
    // NAT-T keepalive
    buf.put((byte) 0xff);
    buf.putShort(ipChecksumOffset, IpUtils.ipChecksum(buf, 0));
    buf.putShort(udpChecksumOffset, IpUtils.udpChecksum(buf, 0, IPV4_HEADER_LENGTH));
    return new KeepalivePacketData(srcAddress, srcPort, dstAddress, dstPort, buf.array());
}

Example 59 with Inet4Address

use of java.net.Inet4Address in project android_frameworks_base by DirtyUnicorns.

the class WifiDisplayController method getSessionInfo.

private WifiDisplaySessionInfo getSessionInfo(WifiP2pGroup info, int session) {
    if (info == null) {
        return null;
    }
    Inet4Address addr = getInterfaceAddress(info);
    WifiDisplaySessionInfo sessionInfo = new WifiDisplaySessionInfo(!info.getOwner().deviceAddress.equals(mThisDevice.deviceAddress), session, info.getOwner().deviceAddress + " " + info.getNetworkName(), info.getPassphrase(), (addr != null) ? addr.getHostAddress() : "");
    if (DEBUG) {
        Slog.d(TAG, sessionInfo.toString());
    }
    return sessionInfo;
}

Example 60 with Inet4Address

use of java.net.Inet4Address in project android_frameworks_base by DirtyUnicorns.

the class WifiDisplayController method getInterfaceAddress.

private static Inet4Address getInterfaceAddress(WifiP2pGroup info) {
    NetworkInterface iface;
    try {
        iface = NetworkInterface.getByName(info.getInterface());
    } catch (SocketException ex) {
        Slog.w(TAG, "Could not obtain address of network interface " + info.getInterface(), ex);
        return null;
    }
    Enumeration<InetAddress> addrs = iface.getInetAddresses();
    while (addrs.hasMoreElements()) {
        InetAddress addr = addrs.nextElement();
        if (addr instanceof Inet4Address) {
            return (Inet4Address) addr;
        }
    }
    Slog.w(TAG, "Could not obtain address of network interface " + info.getInterface() + " because it had no IPv4 addresses.");
    return null;
}