Search in sources :

Example 1 with DhcpOption

use of org.onlab.packet.dhcp.DhcpOption in project onos by opennetworkinglab.

the class Dhcp4HandlerImpl method getVlanIdFromRelayAgentOption.

/**
 * Extracts VLAN ID from relay agent option.
 *
 * @param dhcpPayload the DHCP payload
 * @return VLAN ID from DHCP payload; null if not exists
 */
private VlanId getVlanIdFromRelayAgentOption(DHCP dhcpPayload) {
    DhcpRelayAgentOption option = (DhcpRelayAgentOption) dhcpPayload.getOption(OptionCode_CircuitID);
    if (option == null) {
        return null;
    }
    DhcpOption circuitIdSubOption = option.getSubOption(CIRCUIT_ID.getValue());
    if (circuitIdSubOption == null) {
        return null;
    }
    try {
        CircuitId circuitId = CircuitId.deserialize(circuitIdSubOption.getData());
        return circuitId.vlanId();
    } catch (IllegalArgumentException e) {
        // can't deserialize the circuit ID
        return null;
    }
}
Also used : DhcpRelayAgentOption(org.onlab.packet.dhcp.DhcpRelayAgentOption) CircuitId(org.onlab.packet.dhcp.CircuitId) DhcpOption(org.onlab.packet.dhcp.DhcpOption)

Example 2 with DhcpOption

use of org.onlab.packet.dhcp.DhcpOption in project onos by opennetworkinglab.

the class Dhcp4HandlerImpl method removeRelayAgentOption.

/**
 * Removes DHCP relay agent information option (option 82) from DHCP payload.
 * Also reset giaddr to 0
 *
 * @param ethPacket the Ethernet packet to be processed
 * @return Ethernet packet processed
 */
private Ethernet removeRelayAgentOption(Ethernet ethPacket) {
    Ethernet ethernet = (Ethernet) ethPacket.duplicate();
    IPv4 ipv4 = (IPv4) ethernet.getPayload();
    UDP udp = (UDP) ipv4.getPayload();
    DHCP dhcpPayload = (DHCP) udp.getPayload();
    // removes relay agent information option
    List<DhcpOption> options = dhcpPayload.getOptions();
    options = options.stream().filter(option -> option.getCode() != OptionCode_CircuitID.getValue()).collect(Collectors.toList());
    dhcpPayload.setOptions(options);
    dhcpPayload.setGatewayIPAddress(0);
    udp.setPayload(dhcpPayload);
    ipv4.setPayload(udp);
    ethernet.setPayload(ipv4);
    return ethernet;
}
Also used : UDP(org.onlab.packet.UDP) Ethernet(org.onlab.packet.Ethernet) IPv4(org.onlab.packet.IPv4) DhcpOption(org.onlab.packet.dhcp.DhcpOption) DHCP(org.onlab.packet.DHCP)

Example 3 with DhcpOption

use of org.onlab.packet.dhcp.DhcpOption in project onos by opennetworkinglab.

the class Dhcp4HandlerImpl method processDhcpPacketFromClient.

/**
 * Build the DHCP discover/request packet with gateway IP(unicast packet).
 *
 * @param context the packet context
 * @param ethernetPacket the ethernet payload to process
 * @return processed packet
 */
private List<InternalPacket> processDhcpPacketFromClient(PacketContext context, Ethernet ethernetPacket, Set<Interface> clientInterfaces) {
    ConnectPoint receivedFrom = context.inPacket().receivedFrom();
    DeviceId receivedFromDevice = receivedFrom.deviceId();
    Ip4Address relayAgentIp = null;
    relayAgentIp = Dhcp4HandlerUtil.getRelayAgentIPv4Address(clientInterfaces);
    MacAddress relayAgentMac = clientInterfaces.iterator().next().mac();
    if (relayAgentIp == null || relayAgentMac == null) {
        log.warn("Missing DHCP relay agent interface Ipv4 addr config for " + "packet from client on port: {}. Aborting packet processing", clientInterfaces.iterator().next().connectPoint());
        return Lists.newArrayList();
    }
    log.debug("Multi DHCP V4 processDhcpPacketFromClient on port {}", clientInterfaces.iterator().next().connectPoint());
    // get dhcp header.
    Ethernet etherReply = (Ethernet) ethernetPacket.clone();
    IPv4 ipv4Packet = (IPv4) etherReply.getPayload();
    UDP udpPacket = (UDP) ipv4Packet.getPayload();
    DHCP dhcpPacket = (DHCP) udpPacket.getPayload();
    Ip4Address clientInterfaceIp = interfaceService.getInterfacesByPort(context.inPacket().receivedFrom()).stream().map(Interface::ipAddressesList).flatMap(Collection::stream).map(InterfaceIpAddress::ipAddress).filter(IpAddress::isIp4).map(IpAddress::getIp4Address).findFirst().orElse(null);
    if (clientInterfaceIp == null) {
        log.warn("Can't find interface IP for client interface for port {}", context.inPacket().receivedFrom());
        return Lists.newArrayList();
    }
    boolean isDirectlyConnected = directlyConnected(dhcpPacket);
    boolean directConnFlag = directlyConnected(dhcpPacket);
    // Multi DHCP Start
    ConnectPoint clientConnectionPoint = context.inPacket().receivedFrom();
    VlanId vlanIdInUse = VlanId.vlanId(ethernetPacket.getVlanID());
    Interface clientInterface = interfaceService.getInterfacesByPort(clientConnectionPoint).stream().filter(iface -> Dhcp4HandlerUtil.interfaceContainsVlan(iface, vlanIdInUse)).findFirst().orElse(null);
    List<InternalPacket> internalPackets = new ArrayList<>();
    List<DhcpServerInfo> serverInfoList = findValidServerInfo(directConnFlag);
    List<DhcpServerInfo> copyServerInfoList = new ArrayList<DhcpServerInfo>(serverInfoList);
    boolean serverFound = false;
    for (DhcpServerInfo serverInfo : copyServerInfoList) {
        etherReply = (Ethernet) ethernetPacket.clone();
        ipv4Packet = (IPv4) etherReply.getPayload();
        udpPacket = (UDP) ipv4Packet.getPayload();
        dhcpPacket = (DHCP) udpPacket.getPayload();
        if (!checkDhcpServerConnPt(directConnFlag, serverInfo)) {
            log.warn("Can't get server connect point, ignore");
            continue;
        }
        DhcpServerInfo newServerInfo = getHostInfoForServerInfo(serverInfo, serverInfoList);
        if (newServerInfo == null) {
            log.debug("Can't get server interface with host info resolved, ignore serverInfo {} serverInfoList {}", serverInfo, serverInfoList);
            continue;
        }
        Interface serverInterface = getServerInterface(newServerInfo);
        if (serverInterface == null) {
            log.debug("Can't get server interface, ignore for serverInfo {}, serverInfoList {}", serverInfo, serverInfoList);
            continue;
        }
        Ip4Address ipFacingServer = getFirstIpFromInterface(serverInterface);
        MacAddress macFacingServer = serverInterface.mac();
        log.debug("Interfacing server {} Mac : {} ", ipFacingServer, macFacingServer);
        if (ipFacingServer == null || macFacingServer == null) {
            log.debug("No IP address for server Interface {}", serverInterface);
            continue;
        }
        serverFound = true;
        log.debug("Server Info Found {}", serverInfo.getDhcpConnectMac());
        etherReply.setSourceMACAddress(macFacingServer);
        // set default info and replace with indirect if available later on.
        if (newServerInfo.getDhcpConnectMac().isPresent()) {
            etherReply.setDestinationMACAddress(newServerInfo.getDhcpConnectMac().get());
        }
        if (newServerInfo.getDhcpConnectVlan().isPresent()) {
            etherReply.setVlanID(newServerInfo.getDhcpConnectVlan().get().toShort());
        }
        ipv4Packet.setSourceAddress(ipFacingServer.toInt());
        ipv4Packet.setDestinationAddress(newServerInfo.getDhcpServerIp4().get().toInt());
        log.debug("Directly connected {}", isDirectlyConnected);
        log.debug("DHCP server IP: {}", newServerInfo.getDhcpServerIp4().get());
        if (isDirectlyConnected) {
            log.debug("Default DHCP server IP: {}", newServerInfo.getDhcpServerIp4().get());
            if (newServerInfo.getDhcpConnectMac().isPresent()) {
                etherReply.setDestinationMACAddress(newServerInfo.getDhcpConnectMac().get());
            }
            if (newServerInfo.getDhcpConnectVlan().isPresent()) {
                etherReply.setVlanID(newServerInfo.getDhcpConnectVlan().get().toShort());
            }
            ipv4Packet.setDestinationAddress(newServerInfo.getDhcpServerIp4().get().toInt());
            ConnectPoint inPort = context.inPacket().receivedFrom();
            VlanId vlanId = VlanId.vlanId(ethernetPacket.getVlanID());
            // add connected in port and vlan
            CircuitId cid = new CircuitId(inPort.toString(), vlanId);
            byte[] circuitId = cid.serialize();
            DhcpOption circuitIdSubOpt = new DhcpOption();
            circuitIdSubOpt.setCode(CIRCUIT_ID.getValue()).setLength((byte) circuitId.length).setData(circuitId);
            DhcpRelayAgentOption newRelayAgentOpt = new DhcpRelayAgentOption();
            newRelayAgentOpt.setCode(OptionCode_CircuitID.getValue());
            newRelayAgentOpt.addSubOption(circuitIdSubOpt);
            // Removes END option first
            List<DhcpOption> options = dhcpPacket.getOptions().stream().filter(opt -> opt.getCode() != OptionCode_END.getValue()).collect(Collectors.toList());
            // push relay agent option
            options.add(newRelayAgentOpt);
            // make sure option 255(End) is the last option
            DhcpOption endOption = new DhcpOption();
            endOption.setCode(OptionCode_END.getValue());
            options.add(endOption);
            dhcpPacket.setOptions(options);
            relayAgentIp = serverInfo.getRelayAgentIp4(receivedFromDevice).orElse(null);
            // Sets relay agent IP
            int effectiveRelayAgentIp = relayAgentIp != null ? relayAgentIp.toInt() : clientInterfaceIp.toInt();
            dhcpPacket.setGatewayIPAddress(effectiveRelayAgentIp);
            log.debug("In Default, Relay Agent IP {}", effectiveRelayAgentIp);
        } else {
            if (!newServerInfo.getDhcpServerIp4().isPresent()) {
            // do nothing
            } else if (!newServerInfo.getDhcpConnectMac().isPresent()) {
                continue;
            } else {
                relayAgentIp = newServerInfo.getRelayAgentIp4(receivedFromDevice).orElse(null);
                // Sets relay agent IP
                int effectiveRelayAgentIp = relayAgentIp != null ? relayAgentIp.toInt() : clientInterfaceIp.toInt();
                Ip4Address effectiveRealRealyAgentIP = relayAgentIp != null ? relayAgentIp : clientInterfaceIp;
                dhcpPacket.setGatewayIPAddress(effectiveRelayAgentIp);
                ipv4Packet.setSourceAddress(effectiveRealRealyAgentIP.toInt());
                log.debug("Source IP address set as relay agent IP with value: {}", effectiveRealRealyAgentIP);
            }
        }
        // Remove broadcast flag
        dhcpPacket.setFlags((short) 0);
        udpPacket.setPayload(dhcpPacket);
        // As a DHCP relay, the source port should be server port( instead
        // of client port.
        udpPacket.setSourcePort(UDP.DHCP_SERVER_PORT);
        udpPacket.setDestinationPort(UDP.DHCP_SERVER_PORT);
        ipv4Packet.setPayload(udpPacket);
        ipv4Packet.setTtl((byte) 64);
        etherReply.setPayload(ipv4Packet);
        InternalPacket internalPacket = InternalPacket.internalPacket(etherReply, serverInfo.getDhcpServerConnectPoint().get());
        internalPackets.add(internalPacket);
    }
    if (!serverFound) {
        log.warn("ProcessDhcp4PacketFromClient No Server Found");
    }
    return internalPackets;
}
Also used : DeviceService(org.onosproject.net.device.DeviceService) DefaultTrafficTreatment(org.onosproject.net.flow.DefaultTrafficTreatment) ConnectPoint(org.onosproject.net.ConnectPoint) ObjectiveError(org.onosproject.net.flowobjective.ObjectiveError) OptionCode_END(org.onlab.packet.DHCP.DHCPOptionCode.OptionCode_END) IgnoreDhcpConfig(org.onosproject.dhcprelay.config.IgnoreDhcpConfig) Port(org.onosproject.net.Port) ApplicationId(org.onosproject.core.ApplicationId) DhcpRelayStore(org.onosproject.dhcprelay.store.DhcpRelayStore) Ip4Address(org.onlab.packet.Ip4Address) Deactivate(org.osgi.service.component.annotations.Deactivate) OptionCode_MessageType(org.onlab.packet.DHCP.DHCPOptionCode.OptionCode_MessageType) Set(java.util.Set) MacAddress.valueOf(org.onlab.packet.MacAddress.valueOf) PacketService(org.onosproject.net.packet.PacketService) DhcpServerConfig(org.onosproject.dhcprelay.config.DhcpServerConfig) DeviceId(org.onosproject.net.DeviceId) LEARN_ROUTE_FROM_LEASE_QUERY_DEFAULT(org.onosproject.dhcprelay.OsgiPropertyConstants.LEARN_ROUTE_FROM_LEASE_QUERY_DEFAULT) Dictionary(java.util.Dictionary) CopyOnWriteArrayList(java.util.concurrent.CopyOnWriteArrayList) Pipeliner(org.onosproject.net.behaviour.Pipeliner) REMOVE(org.onosproject.net.flowobjective.Objective.Operation.REMOVE) HostProviderRegistry(org.onosproject.net.host.HostProviderRegistry) Tools(org.onlab.util.Tools) Host(org.onosproject.net.Host) RouteStore(org.onosproject.routeservice.RouteStore) ComponentContext(org.osgi.service.component.ComponentContext) LEARN_ROUTE_FROM_LEASE_QUERY(org.onosproject.dhcprelay.OsgiPropertyConstants.LEARN_ROUTE_FROM_LEASE_QUERY) HostListener(org.onosproject.net.host.HostListener) InterfaceService(org.onosproject.net.intf.InterfaceService) HostService(org.onosproject.net.host.HostService) Multimaps(com.google.common.collect.Multimaps) ArrayList(java.util.ArrayList) Component(org.osgi.service.component.annotations.Component) Lists(com.google.common.collect.Lists) TrafficSelector(org.onosproject.net.flow.TrafficSelector) CIRCUIT_ID(org.onlab.packet.dhcp.DhcpRelayAgentOption.RelayAgentInfoOptions.CIRCUIT_ID) OptionCode_CircuitID(org.onlab.packet.DHCP.DHCPOptionCode.OptionCode_CircuitID) CircuitId(org.onlab.packet.dhcp.CircuitId) DhcpRelayAgentOption(org.onlab.packet.dhcp.DhcpRelayAgentOption) DefaultTrafficSelector(org.onosproject.net.flow.DefaultTrafficSelector) TpPort(org.onlab.packet.TpPort) ComponentConfigService(org.onosproject.cfg.ComponentConfigService) BasePacket(org.onlab.packet.BasePacket) Executor(java.util.concurrent.Executor) HostProvider(org.onosproject.net.host.HostProvider) VlanId(org.onlab.packet.VlanId) ProviderId(org.onosproject.net.provider.ProviderId) IPv4(org.onlab.packet.IPv4) DhcpRecord(org.onosproject.dhcprelay.store.DhcpRecord) Objective(org.onosproject.net.flowobjective.Objective) MacAddress(org.onlab.packet.MacAddress) DHCP(org.onlab.packet.DHCP) DefaultOutboundPacket(org.onosproject.net.packet.DefaultOutboundPacket) Route(org.onosproject.routeservice.Route) HostLocation(org.onosproject.net.HostLocation) Interface(org.onosproject.net.intf.Interface) CoreService(org.onosproject.core.CoreService) LoggerFactory(org.slf4j.LoggerFactory) Tools.groupedThreads(org.onlab.util.Tools.groupedThreads) ForwardingObjective(org.onosproject.net.flowobjective.ForwardingObjective) ByteBuffer(java.nio.ByteBuffer) Ethernet(org.onlab.packet.Ethernet) HostProviderService(org.onosproject.net.host.HostProviderService) HashMultimap(com.google.common.collect.HashMultimap) AtomicInteger(java.util.concurrent.atomic.AtomicInteger) DhcpServerInfo(org.onosproject.dhcprelay.api.DhcpServerInfo) ImmutableSet(com.google.common.collect.ImmutableSet) Device(org.onosproject.net.Device) Collection(java.util.Collection) Executors.newSingleThreadExecutor(java.util.concurrent.Executors.newSingleThreadExecutor) DefaultForwardingObjective(org.onosproject.net.flowobjective.DefaultForwardingObjective) InterfaceIpAddress(org.onosproject.net.host.InterfaceIpAddress) Collectors(java.util.stream.Collectors) Sets(com.google.common.collect.Sets) Preconditions.checkState(com.google.common.base.Preconditions.checkState) List(java.util.List) ObjectiveContext(org.onosproject.net.flowobjective.ObjectiveContext) PacketContext(org.onosproject.net.packet.PacketContext) Optional(java.util.Optional) HostDescription(org.onosproject.net.host.HostDescription) ADD(org.onosproject.net.flowobjective.Objective.Operation.ADD) Multimap(com.google.common.collect.Multimap) FlowObjectiveService(org.onosproject.net.flowobjective.FlowObjectiveService) DefaultHostDescription(org.onosproject.net.host.DefaultHostDescription) OutboundPacket(org.onosproject.net.packet.OutboundPacket) HostEvent(org.onosproject.net.host.HostEvent) Activate(org.osgi.service.component.annotations.Activate) HostId(org.onosproject.net.HostId) IpAddress(org.onlab.packet.IpAddress) TrafficTreatment(org.onosproject.net.flow.TrafficTreatment) Logger(org.slf4j.Logger) Preconditions.checkNotNull(com.google.common.base.Preconditions.checkNotNull) UDP(org.onlab.packet.UDP) DhcpHandler(org.onosproject.dhcprelay.api.DhcpHandler) DhcpOption(org.onlab.packet.dhcp.DhcpOption) ReferenceCardinality(org.osgi.service.component.annotations.ReferenceCardinality) Modified(org.osgi.service.component.annotations.Modified) PacketPriority(org.onosproject.net.packet.PacketPriority) Reference(org.osgi.service.component.annotations.Reference) Collections(java.util.Collections) DeviceId(org.onosproject.net.DeviceId) IPv4(org.onlab.packet.IPv4) Ip4Address(org.onlab.packet.Ip4Address) CopyOnWriteArrayList(java.util.concurrent.CopyOnWriteArrayList) ArrayList(java.util.ArrayList) CircuitId(org.onlab.packet.dhcp.CircuitId) VlanId(org.onlab.packet.VlanId) DhcpServerInfo(org.onosproject.dhcprelay.api.DhcpServerInfo) UDP(org.onlab.packet.UDP) DhcpOption(org.onlab.packet.dhcp.DhcpOption) MacAddress(org.onlab.packet.MacAddress) ConnectPoint(org.onosproject.net.ConnectPoint) DHCP(org.onlab.packet.DHCP) ConnectPoint(org.onosproject.net.ConnectPoint) DhcpRelayAgentOption(org.onlab.packet.dhcp.DhcpRelayAgentOption) Ethernet(org.onlab.packet.Ethernet) InterfaceIpAddress(org.onosproject.net.host.InterfaceIpAddress) IpAddress(org.onlab.packet.IpAddress) Interface(org.onosproject.net.intf.Interface) InterfaceIpAddress(org.onosproject.net.host.InterfaceIpAddress)

Example 4 with DhcpOption

use of org.onlab.packet.dhcp.DhcpOption in project onos by opennetworkinglab.

the class DHCP method serialize.

@Override
public byte[] serialize() {
    // not guaranteed to retain length/exact format
    this.resetChecksum();
    // minimum size 240 including magic cookie, options generally padded to
    // 300
    int optionsLength = 0;
    for (final DhcpOption option : this.options) {
        if (option.getCode() == DHCPOptionCode.OptionCode_Pad.getValue() || option.getCode() == DHCPOptionCode.OptionCode_END.getValue()) {
            optionsLength += 1;
        } else {
            optionsLength += 2 + (UNSIGNED_BYTE_MASK & option.getLength());
        }
    }
    int optionsPadLength = 0;
    if (optionsLength < BASE_OPTION_LEN) {
        optionsPadLength = BASE_OPTION_LEN - optionsLength;
    }
    final byte[] data = new byte[MIN_DHCP_LEN + optionsLength + optionsPadLength];
    final ByteBuffer bb = ByteBuffer.wrap(data);
    bb.put(this.opCode);
    bb.put(this.hardwareType);
    bb.put(this.hardwareAddressLength);
    bb.put(this.hops);
    bb.putInt(this.transactionId);
    bb.putShort(this.seconds);
    bb.putShort(this.flags);
    bb.putInt(this.clientIPAddress);
    bb.putInt(this.yourIPAddress);
    bb.putInt(this.serverIPAddress);
    bb.putInt(this.gatewayIPAddress);
    checkArgument(this.clientHardwareAddress.length <= BASE_HW_ADDR_LEN, "Hardware address is too long (%s bytes)", this.clientHardwareAddress.length);
    bb.put(this.clientHardwareAddress);
    if (this.clientHardwareAddress.length < BASE_HW_ADDR_LEN) {
        for (int i = 0; i < BASE_HW_ADDR_LEN - this.clientHardwareAddress.length; ++i) {
            bb.put(PAD_BYTE);
        }
    }
    this.writeString(this.serverName, bb, BASE_SERVER_NAME_LEN);
    this.writeString(this.bootFileName, bb, BASE_BOOT_FILE_NAME_LEN);
    // magic cookie
    bb.putInt(MAGIC_COOKIE);
    for (final DhcpOption option : this.options) {
        bb.put(option.serialize());
    }
    // assume the rest is padded out with zeroes
    return data;
}
Also used : DhcpOption(org.onlab.packet.dhcp.DhcpOption) ByteBuffer(java.nio.ByteBuffer)

Example 5 with DhcpOption

use of org.onlab.packet.dhcp.DhcpOption in project onos by opennetworkinglab.

the class DhcpManagerTest method constructDhcpPacket.

/**
 * Constructs an Ethernet packet containing a DHCP Payload.
 * @param packetType DHCP Message Type
 * @return Ethernet packet
 */
private Ethernet constructDhcpPacket(DHCP.MsgType packetType) {
    // Ethernet Frame.
    Ethernet ethReply = new Ethernet();
    ethReply.setSourceMACAddress(CLIENT1_HOST.mac());
    ethReply.setDestinationMACAddress(MacAddress.BROADCAST);
    ethReply.setEtherType(Ethernet.TYPE_IPV4);
    ethReply.setVlanID((short) 2);
    // IP Packet
    IPv4 ipv4Reply = new IPv4();
    ipv4Reply.setSourceAddress(0);
    ipv4Reply.setDestinationAddress(BROADCAST.toInt());
    ipv4Reply.setTtl((byte) 127);
    // UDP Datagram.
    UDP udpReply = new UDP();
    udpReply.setSourcePort((byte) UDP.DHCP_CLIENT_PORT);
    udpReply.setDestinationPort((byte) UDP.DHCP_SERVER_PORT);
    // DHCP Payload.
    DHCP dhcpReply = new DHCP();
    dhcpReply.setOpCode(DHCP.OPCODE_REQUEST);
    dhcpReply.setYourIPAddress(0);
    dhcpReply.setServerIPAddress(0);
    dhcpReply.setTransactionId(TRANSACTION_ID);
    dhcpReply.setClientHardwareAddress(CLIENT1_HOST.mac().toBytes());
    dhcpReply.setHardwareType(DHCP.HWTYPE_ETHERNET);
    dhcpReply.setHardwareAddressLength((byte) 6);
    // DHCP Options.
    DhcpOption option = new DhcpOption();
    List<DhcpOption> optionList = new ArrayList<>();
    // DHCP Message Type.
    option.setCode(DHCP.DHCPOptionCode.OptionCode_MessageType.getValue());
    option.setLength((byte) 1);
    byte[] optionData = { (byte) packetType.getValue() };
    option.setData(optionData);
    optionList.add(option);
    // DHCP Requested IP.
    option = new DhcpOption();
    option.setCode(DHCP.DHCPOptionCode.OptionCode_RequestedIP.getValue());
    option.setLength((byte) 4);
    optionData = Ip4Address.valueOf(EXPECTED_IP).toOctets();
    option.setData(optionData);
    optionList.add(option);
    // End Option.
    option = new DhcpOption();
    option.setCode(DHCP.DHCPOptionCode.OptionCode_END.getValue());
    option.setLength((byte) 1);
    optionList.add(option);
    dhcpReply.setOptions(optionList);
    udpReply.setPayload(dhcpReply);
    ipv4Reply.setPayload(udpReply);
    ethReply.setPayload(ipv4Reply);
    return ethReply;
}
Also used : UDP(org.onlab.packet.UDP) Ethernet(org.onlab.packet.Ethernet) IPv4(org.onlab.packet.IPv4) ArrayList(java.util.ArrayList) DhcpOption(org.onlab.packet.dhcp.DhcpOption) DHCP(org.onlab.packet.DHCP)

Aggregations

DhcpOption (org.onlab.packet.dhcp.DhcpOption)8 DHCP (org.onlab.packet.DHCP)5 Ethernet (org.onlab.packet.Ethernet)5 IPv4 (org.onlab.packet.IPv4)5 UDP (org.onlab.packet.UDP)5 ByteBuffer (java.nio.ByteBuffer)4 ArrayList (java.util.ArrayList)4 DhcpRelayAgentOption (org.onlab.packet.dhcp.DhcpRelayAgentOption)4 CircuitId (org.onlab.packet.dhcp.CircuitId)3 Preconditions.checkNotNull (com.google.common.base.Preconditions.checkNotNull)2 Preconditions.checkState (com.google.common.base.Preconditions.checkState)2 HashMultimap (com.google.common.collect.HashMultimap)2 ImmutableSet (com.google.common.collect.ImmutableSet)2 Lists (com.google.common.collect.Lists)2 Multimap (com.google.common.collect.Multimap)2 Multimaps (com.google.common.collect.Multimaps)2 Sets (com.google.common.collect.Sets)2 Collection (java.util.Collection)2 Collections (java.util.Collections)2 Dictionary (java.util.Dictionary)2