Examples with DHCP6 org.onlab.packet.DHCP6 used on opensource projects

Example 16 with DHCP6

use of org.onlab.packet.DHCP6 in project onos by opennetworkinglab.

the class Dhcp6Test method deserializeReply.

/**
 * Test deserialize relay message with reply message.
 *
 * @throws Exception exception while deserialize the DHCPv6 payload
 */
@Test
public void deserializeReply() throws Exception {
    byte[] data = Resources.toByteArray(getClass().getResource(REPLY));
    Ethernet eth = Ethernet.deserializer().deserialize(data, 0, data.length);
    DHCP6 dhcp6 = (DHCP6) eth.getPayload().getPayload().getPayload();
    assertEquals(dhcp6.getMsgType(), DHCP6.MsgType.REPLY.value());
    assertEquals(dhcp6.getTransactionId(), XID_2);
    assertEquals(dhcp6.getOptions().size(), 3);
    // IA NA
    Dhcp6Option option = dhcp6.getOptions().get(0);
    assertTrue(option instanceof Dhcp6IaNaOption);
    Dhcp6IaNaOption iaNaOption = (Dhcp6IaNaOption) option;
    assertEquals(iaNaOption.getCode(), DHCP6.OptionCode.IA_NA.value());
    assertEquals(iaNaOption.getLength(), 40);
    assertEquals(iaNaOption.getIaId(), IA_ID);
    assertEquals(iaNaOption.getT1(), T1_SERVER);
    assertEquals(iaNaOption.getT2(), T2_SERVER);
    assertEquals(iaNaOption.getOptions().size(), 1);
    // IA Address (in IA NA)
    assertTrue(iaNaOption.getOptions().get(0) instanceof Dhcp6IaAddressOption);
    Dhcp6IaAddressOption iaAddressOption = (Dhcp6IaAddressOption) iaNaOption.getOptions().get(0);
    assertEquals(iaAddressOption.getIp6Address(), IA_ADDRESS);
    assertEquals(iaAddressOption.getPreferredLifetime(), PREFFERRED_LT_SERVER);
    assertEquals(iaAddressOption.getValidLifetime(), VALID_LT_SERVER);
    assertNull(iaAddressOption.getOptions());
    // Client ID
    option = dhcp6.getOptions().get(1);
    assertTrue(option instanceof Dhcp6ClientIdOption);
    Dhcp6ClientIdOption clientIdOption = (Dhcp6ClientIdOption) option;
    assertEquals(clientIdOption.getCode(), DHCP6.OptionCode.CLIENTID.value());
    assertEquals(clientIdOption.getLength(), 14);
    assertEquals(clientIdOption.getDuid().getDuidType(), Dhcp6Duid.DuidType.DUID_LLT);
    assertEquals(clientIdOption.getDuid().getHardwareType(), 1);
    assertEquals(clientIdOption.getDuid().getDuidTime(), CLIENT_DUID_TIME);
    assertArrayEquals(clientIdOption.getDuid().getLinkLayerAddress(), CLIENT_MAC.toBytes());
    // Server ID
    option = dhcp6.getOptions().get(2);
    assertEquals(option.getCode(), DHCP6.OptionCode.SERVERID.value());
    assertEquals(option.getLength(), 14);
    Dhcp6Duid serverDuid = Dhcp6Duid.deserializer().deserialize(option.getData(), 0, option.getData().length);
    assertEquals(serverDuid.getDuidType(), Dhcp6Duid.DuidType.DUID_LLT);
    assertEquals(serverDuid.getDuidTime(), 0x211e5340);
    assertEquals(serverDuid.getHardwareType(), 1);
    assertArrayEquals(serverDuid.getLinkLayerAddress(), SERVER_MAC.toBytes());
    assertArrayEquals(data, eth.serialize());
}

Example 17 with DHCP6

use of org.onlab.packet.DHCP6 in project onos by opennetworkinglab.

the class Dhcp6Test method serializeSolicit.

/**
 * Test serialize solicit message.
 *
 * @throws Exception exception while serialize the DHCPv6 payload
 */
@Test
public void serializeSolicit() throws Exception {
    DHCP6 dhcp6 = new DHCP6();
    dhcp6.setMsgType(DHCP6.MsgType.SOLICIT.value());
    dhcp6.setTransactionId(XID_1);
    List<Dhcp6Option> options = Lists.newArrayList();
    // Client ID
    Dhcp6Duid duid = new Dhcp6Duid();
    duid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
    duid.setHardwareType((short) 1);
    duid.setDuidTime(CLIENT_DUID_TIME);
    duid.setLinkLayerAddress(CLIENT_MAC.toBytes());
    Dhcp6ClientIdOption clientIdOption = new Dhcp6ClientIdOption();
    clientIdOption.setDuid(duid);
    options.add(clientIdOption);
    // Option request
    Dhcp6Option option = new Dhcp6Option();
    option.setCode(DHCP6.OptionCode.ORO.value());
    option.setLength((short) 8);
    option.setData(new byte[] { 0, 23, 0, 24, 0, 39, 0, 31 });
    options.add(option);
    // Elapsed Time
    option = new Dhcp6Option();
    option.setCode(DHCP6.OptionCode.ELAPSED_TIME.value());
    option.setLength((short) 2);
    option.setData(new byte[] { 0, 0 });
    options.add(option);
    // IA NA
    Dhcp6IaNaOption iaNaOption = new Dhcp6IaNaOption();
    iaNaOption.setIaId(IA_ID);
    iaNaOption.setT1(T1_CLIENT);
    iaNaOption.setT2(T2_CLIENT);
    Dhcp6IaAddressOption iaAddressOption = new Dhcp6IaAddressOption();
    iaAddressOption.setIp6Address(IA_ADDRESS);
    iaAddressOption.setPreferredLifetime(PREFFERRED_LT_REQ);
    iaAddressOption.setValidLifetime(VALID_LT_REQ);
    iaNaOption.setOptions(ImmutableList.of(iaAddressOption));
    options.add(iaNaOption);
    dhcp6.setOptions(options);
    Dhcp6RelayOption relayOption = new Dhcp6RelayOption();
    relayOption.setPayload(dhcp6);
    UDP udp = new UDP();
    udp.setSourcePort(UDP.DHCP_V6_CLIENT_PORT);
    udp.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
    udp.setPayload(dhcp6);
    udp.setChecksum((short) 0xffaf);
    IPv6 ipv6 = new IPv6();
    ipv6.setHopLimit((byte) 1);
    ipv6.setSourceAddress(CLIENT_LL.toOctets());
    ipv6.setDestinationAddress(DHCP6_BRC.toOctets());
    ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
    ipv6.setTrafficClass((byte) 0);
    ipv6.setFlowLabel(0x000322ad);
    ipv6.setPayload(udp);
    Ethernet eth = new Ethernet();
    eth.setDestinationMACAddress(IPV6_MCAST);
    eth.setSourceMACAddress(CLIENT_MAC);
    eth.setEtherType(Ethernet.TYPE_IPV6);
    eth.setPayload(ipv6);
    assertArrayEquals(Resources.toByteArray(Dhcp6RelayTest.class.getResource(SOLICIT)), eth.serialize());
}

Example 18 with DHCP6

use of org.onlab.packet.DHCP6 in project onos by opennetworkinglab.

the class Dhcp6Test method serializeReply.

@Test
public void serializeReply() throws Exception {
    DHCP6 dhcp6 = new DHCP6();
    dhcp6.setMsgType(DHCP6.MsgType.REPLY.value());
    dhcp6.setTransactionId(XID_2);
    List<Dhcp6Option> options = Lists.newArrayList();
    // IA address
    Dhcp6IaAddressOption iaAddressOption = new Dhcp6IaAddressOption();
    iaAddressOption.setIp6Address(IA_ADDRESS);
    iaAddressOption.setPreferredLifetime(PREFFERRED_LT_SERVER);
    iaAddressOption.setValidLifetime(VALID_LT_SERVER);
    // IA NA
    Dhcp6IaNaOption iaNaOption = new Dhcp6IaNaOption();
    iaNaOption.setIaId(IA_ID);
    iaNaOption.setT1(T1_SERVER);
    iaNaOption.setT2(T2_SERVER);
    iaNaOption.setOptions(ImmutableList.of(iaAddressOption));
    options.add(iaNaOption);
    // Client ID
    Dhcp6Duid duid = new Dhcp6Duid();
    duid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
    duid.setHardwareType((short) 1);
    duid.setDuidTime(CLIENT_DUID_TIME);
    duid.setLinkLayerAddress(CLIENT_MAC.toBytes());
    Dhcp6ClientIdOption clientIdOption = new Dhcp6ClientIdOption();
    clientIdOption.setDuid(duid);
    options.add(clientIdOption);
    // Server ID
    Dhcp6Option option = new Dhcp6Option();
    option.setCode(DHCP6.OptionCode.SERVERID.value());
    option.setLength((short) 14);
    Dhcp6Duid serverDuid = new Dhcp6Duid();
    serverDuid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
    serverDuid.setLinkLayerAddress(SERVER_MAC.toBytes());
    serverDuid.setHardwareType((short) 1);
    serverDuid.setDuidTime(0x211e5340);
    option.setData(serverDuid.serialize());
    options.add(option);
    dhcp6.setOptions(options);
    Dhcp6RelayOption relayOption = new Dhcp6RelayOption();
    relayOption.setPayload(dhcp6);
    UDP udp = new UDP();
    udp.setSourcePort(UDP.DHCP_V6_SERVER_PORT);
    udp.setDestinationPort(UDP.DHCP_V6_CLIENT_PORT);
    udp.setPayload(dhcp6);
    udp.setChecksum((short) 0xcb5a);
    IPv6 ipv6 = new IPv6();
    ipv6.setHopLimit((byte) 64);
    ipv6.setSourceAddress(UPSTREAM_LL.toOctets());
    ipv6.setDestinationAddress(CLIENT_LL.toOctets());
    ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
    ipv6.setTrafficClass((byte) 0);
    ipv6.setFlowLabel(0x000d935f);
    ipv6.setPayload(udp);
    Ethernet eth = new Ethernet();
    eth.setDestinationMACAddress(CLIENT_MAC);
    eth.setSourceMACAddress(UPSTREAM_MAC);
    eth.setEtherType(Ethernet.TYPE_IPV6);
    eth.setPayload(ipv6);
    assertArrayEquals(Resources.toByteArray(Dhcp6RelayTest.class.getResource(REPLY)), eth.serialize());
}

Example 19 with DHCP6

use of org.onlab.packet.DHCP6 in project onos by opennetworkinglab.

the class Dhcp6HandlerImpl method processDhcpPacket.

@Override
public void processDhcpPacket(PacketContext context, BasePacket payload) {
    checkNotNull(payload, "DHCP6 payload can't be null");
    checkState(payload instanceof DHCP6, "Payload is not a DHCP6");
    DHCP6 dhcp6Payload = (DHCP6) payload;
    Ethernet receivedPacket = context.inPacket().parsed();
    if (!configured()) {
        log.warn("Missing DHCP6 relay server config. " + "Abort packet processing dhcp6 payload {}", dhcp6Payload);
        return;
    }
    byte msgTypeVal = dhcp6Payload.getMsgType();
    MsgType msgType = DHCP6.MsgType.getType(msgTypeVal);
    log.debug("msgType is {}", msgType);
    ConnectPoint inPort = context.inPacket().receivedFrom();
    if (inPort == null) {
        log.warn("incoming ConnectPoint is null");
    }
    Set<Interface> receivingInterfaces = interfaceService.getInterfacesByPort(inPort);
    // ignore the packets if dhcp client interface is not configured on onos.
    if (receivingInterfaces.isEmpty()) {
        log.warn("Virtual interface is not configured on {}", inPort);
        return;
    }
    if (msgTypeVal == DHCP6.MsgType.LEASEQUERY.value()) {
        List<InternalPacket> ethernetClientPackets = learnRouteFromLeasequery ? processLQ6PacketFromClient(context, receivedPacket, receivingInterfaces, dhcp6Payload) : processDhcp6ForwardOnly(context, receivedPacket, receivingInterfaces, dhcp6Payload);
        for (InternalPacket internalPacket : ethernetClientPackets) {
            forwardPacket(internalPacket);
        }
    } else if (msgTypeVal == DHCP6.MsgType.LEASEQUERY_REPLY.value() && learnRouteFromLeasequery) {
        IPv6 clientIpv6 = (IPv6) receivedPacket.getPayload();
        UDP clientUdp = (UDP) clientIpv6.getPayload();
        DHCP6 clientDhcp6 = (DHCP6) clientUdp.getPayload();
        Interface serverInterface = Dhcp6HandlerUtil.directlyConnected(clientDhcp6) ? getServerInterface() : getIndirectServerInterface();
        InternalPacket ethernetPacketReply = Dhcp6HandlerUtil.processLQ6PacketFromServer(defaultServerInfoList, indirectServerInfoList, serverInterface, interfaceService, hostService, context, receivedPacket, receivingInterfaces);
        if (ethernetPacketReply != null) {
            forwardPacket(ethernetPacketReply);
        }
        handleLeaseQuery6ReplyMsg(context, dhcp6Payload);
    } else if (MSG_TYPE_FROM_CLIENT.contains(msgTypeVal)) {
        List<InternalPacket> ethernetClientPacket = processDhcp6PacketFromClient(context, receivedPacket, receivingInterfaces);
        for (InternalPacket internalPacket : ethernetClientPacket) {
            forwardPacket(internalPacket);
        }
    } else if (MSG_TYPE_FROM_SERVER.contains(msgTypeVal)) {
        log.debug("calling processDhcp6PacketFromServer with RELAY_REPL {}, {}", receivedPacket, dhcp6Payload);
        InternalPacket ethernetPacketReply = processDhcp6PacketFromServer(context, receivedPacket, receivingInterfaces);
        if (ethernetPacketReply != null) {
            forwardPacket(ethernetPacketReply);
        }
    } else {
        log.warn("Not so fast, packet type {} not supported yet", msgTypeVal);
    }
}

Example 20 with DHCP6

use of org.onlab.packet.DHCP6 in project onos by opennetworkinglab.

the class Dhcp6HandlerImpl method processDhcp6PacketFromServer.

/**
 * process the DHCP6 relay-reply packet from dhcp server.
 *
 * @param context packet context
 * @param receivedPacket server ethernet packet
 * @param recevingInterfaces set of server side interfaces
 * @return internalPacket toward client
 */
private InternalPacket processDhcp6PacketFromServer(PacketContext context, Ethernet receivedPacket, Set<Interface> recevingInterfaces) {
    // get dhcp6 header.
    Ethernet etherReply = receivedPacket.duplicate();
    IPv6 ipv6Packet = (IPv6) etherReply.getPayload();
    UDP udpPacket = (UDP) ipv6Packet.getPayload();
    DHCP6 dhcp6Relay = (DHCP6) udpPacket.getPayload();
    Boolean directConnFlag = Dhcp6HandlerUtil.directlyConnected(dhcp6Relay);
    DHCP6 embeddedDhcp6 = dhcp6Relay.getOptions().stream().filter(opt -> opt instanceof Dhcp6RelayOption).map(BasePacket::getPayload).map(pld -> (DHCP6) pld).findFirst().orElse(null);
    ConnectPoint inPort = context.inPacket().receivedFrom();
    DhcpServerInfo foundServerInfo = findServerInfoFromServer(directConnFlag, inPort);
    if (foundServerInfo == null) {
        log.warn("Cannot find server info for {} server, inPort {}", directConnFlag ? "direct" : "indirect", inPort);
        // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_SERVER_INFO);
        return null;
    } else {
        if (Dhcp6HandlerUtil.isServerIpEmpty(foundServerInfo)) {
            log.warn("Cannot find server info's ipaddress");
            // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_SERVER_IP6ADDR);
            return null;
        }
    }
    Dhcp6InterfaceIdOption interfaceIdOption = dhcp6Relay.getOptions().stream().filter(opt -> opt instanceof Dhcp6InterfaceIdOption).map(opt -> (Dhcp6InterfaceIdOption) opt).findFirst().orElse(null);
    if (interfaceIdOption == null) {
        log.warn("Interface Id option is not present, abort packet...");
        // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.OPTION_MISSING_FAIL);
        return null;
    }
    MacAddress peerMac = interfaceIdOption.getMacAddress();
    String clientConnectionPointStr = new String(interfaceIdOption.getInPort());
    ConnectPoint clientConnectionPoint = ConnectPoint.deviceConnectPoint(clientConnectionPointStr);
    VlanId vlanIdInUse = VlanId.vlanId(interfaceIdOption.getVlanId());
    log.debug("processDhcp6PacketFromServer Interface Id Mac {}, port{}, vlan {}", peerMac, clientConnectionPointStr, vlanIdInUse);
    Interface clientInterface = interfaceService.getInterfacesByPort(clientConnectionPoint).stream().filter(iface -> Dhcp6HandlerUtil.interfaceContainsVlan(iface, vlanIdInUse)).findFirst().orElse(null);
    if (clientInterface == null) {
        log.warn("Cannot get client interface for from packet, abort... vlan {}", vlanIdInUse.toString());
        // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_MATCHING_INTF);
        return null;
    }
    etherReply.setVlanID(vlanIdInUse.toShort());
    MacAddress relayAgentMac = clientInterface.mac();
    if (relayAgentMac == null) {
        log.warn("Can not get client interface mac, abort packet..");
        // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_CLIENT_INTF_MAC);
        return null;
    }
    etherReply.setSourceMACAddress(relayAgentMac);
    // find destMac
    MacAddress clientMac;
    Ip6Address peerAddress = Ip6Address.valueOf(dhcp6Relay.getPeerAddress());
    Set<Host> clients = hostService.getHostsByIp(peerAddress);
    if (clients.isEmpty()) {
        log.trace("There's no host found for this address {}", HexString.toHexString(dhcp6Relay.getPeerAddress(), ":"));
        log.trace("Let's look up interfaceId {}", HexString.toHexString(peerMac.toBytes(), ":"));
        clientMac = peerMac;
    } else {
        clientMac = clients.iterator().next().mac();
        if (clientMac == null) {
            log.warn("No client mac address found, abort packet...");
            // dhcpRelayCountersStore.incrementCounter(gCount, DhcpRelayCounters.NO_CLIENT_INTF_MAC);
            return null;
        }
        log.trace("Client mac address found from getHostByIp");
    }
    etherReply.setDestinationMACAddress(clientMac);
    // ip header
    ipv6Packet.setSourceAddress(dhcp6Relay.getLinkAddress());
    ipv6Packet.setDestinationAddress(dhcp6Relay.getPeerAddress());
    // udp header
    udpPacket.setSourcePort(UDP.DHCP_V6_SERVER_PORT);
    if (directConnFlag) {
        udpPacket.setDestinationPort(UDP.DHCP_V6_CLIENT_PORT);
    } else {
        udpPacket.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
    }
    boolean hostOrRouteAllowed = learnRouteFromLeasequery || Dhcp6HandlerUtil.getDhcp6LeafMessageType(dhcp6Relay) != MsgType.LEASEQUERY_REPLY;
    log.debug("Can add host or route: {}", hostOrRouteAllowed);
    if (hostOrRouteAllowed) {
        // add host or route
        addHostOrRoute(directConnFlag, clientConnectionPoint, dhcp6Relay, embeddedDhcp6, clientMac, clientInterface, vlanIdInUse);
    }
    udpPacket.setPayload(embeddedDhcp6);
    udpPacket.resetChecksum();
    ipv6Packet.setPayload(udpPacket);
    etherReply.setPayload(ipv6Packet);
    return InternalPacket.internalPacket(etherReply, clientConnectionPoint);
}