Examples with Interface org.onosproject.net.intf.Interface used on opensource projects

Example 26 with Interface

use of org.onosproject.net.intf.Interface 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;
}

Example 27 with Interface

use of org.onosproject.net.intf.Interface in project onos by opennetworkinglab.

the class Dhcp4HandlerImpl method processDhcpPacket.

@Override
public void processDhcpPacket(PacketContext context, BasePacket payload) {
    checkNotNull(payload, "DHCP payload can't be null");
    checkState(payload instanceof DHCP, "Payload is not a DHCP");
    DHCP dhcpPayload = (DHCP) payload;
    if (!configured()) {
        log.warn("Missing default DHCP relay server config. Abort packet processing");
        return;
    }
    ConnectPoint inPort = context.inPacket().receivedFrom();
    checkNotNull(dhcpPayload, "Can't find DHCP payload");
    Ethernet packet = context.inPacket().parsed();
    DHCP.MsgType incomingPacketType = dhcpPayload.getOptions().stream().filter(dhcpOption -> dhcpOption.getCode() == OptionCode_MessageType.getValue()).map(DhcpOption::getData).map(data -> DHCP.MsgType.getType(data[0])).findFirst().orElse(null);
    checkNotNull(incomingPacketType, "Can't get message type from DHCP payload {}", dhcpPayload);
    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;
    }
    switch(incomingPacketType) {
        case DHCPDISCOVER:
            // Add the gateway IP as virtual interface IP for server to understand
            // the lease to be assigned and forward the packet to dhcp server.
            List<InternalPacket> ethernetClientPacket = processDhcpPacketFromClient(context, packet, receivingInterfaces);
            for (InternalPacket internalPacket : ethernetClientPacket) {
                log.debug("DHCPDISCOVER from {} Forward to server", inPort);
                writeRequestDhcpRecord(inPort, packet, dhcpPayload);
                forwardPacket(internalPacket);
            }
            break;
        case DHCPOFFER:
            // reply to dhcp client.
            InternalPacket ethernetPacketOffer = processDhcpPacketFromServer(context, packet);
            if (ethernetPacketOffer != null) {
                writeResponseDhcpRecord(ethernetPacketOffer.getPacket(), dhcpPayload);
                sendResponseToClient(ethernetPacketOffer, dhcpPayload);
            }
            break;
        case DHCPREQUEST:
            // add the gateway ip as virtual interface ip for server to understand
            // the lease to be assigned and forward the packet to dhcp server.
            List<InternalPacket> ethernetPacketRequest = processDhcpPacketFromClient(context, packet, receivingInterfaces);
            for (InternalPacket internalPacket : ethernetPacketRequest) {
                log.debug("DHCPDISCOVER from {} Forward to server", inPort);
                writeRequestDhcpRecord(inPort, packet, dhcpPayload);
                forwardPacket(internalPacket);
            }
            break;
        case DHCPDECLINE:
            break;
        case DHCPACK:
            // reply to dhcp client.
            InternalPacket ethernetPacketAck = processDhcpPacketFromServer(context, packet);
            if (ethernetPacketAck != null) {
                writeResponseDhcpRecord(ethernetPacketAck.getPacket(), dhcpPayload);
                handleDhcpAck(ethernetPacketAck.getPacket(), dhcpPayload);
                sendResponseToClient(ethernetPacketAck, dhcpPayload);
            }
            break;
        case DHCPNAK:
            break;
        case DHCPRELEASE:
            // TODO: release the ip address from client
            break;
        case DHCPINFORM:
            break;
        case DHCPFORCERENEW:
            break;
        case DHCPLEASEQUERY:
            handleLeaseQueryMsg(context, packet, dhcpPayload);
            break;
        case DHCPLEASEACTIVE:
            handleLeaseQueryActivateMsg(packet, dhcpPayload);
            break;
        case DHCPLEASEUNASSIGNED:
        case DHCPLEASEUNKNOWN:
            handleLeaseQueryUnknown(packet, dhcpPayload);
            break;
        default:
            break;
    }
}

Example 28 with Interface

use of org.onosproject.net.intf.Interface in project onos by opennetworkinglab.

the class Dhcp6HandlerImpl method getServerInterface.

/**
 * Gets Interface facing to the server for default host.
 *
 * @param serverInfo server information
 * @return the Interface facing to the server; null if not found
 */
private Interface getServerInterface(DhcpServerInfo serverInfo) {
    Interface serverInterface = null;
    ConnectPoint dhcpServerConnectPoint = serverInfo.getDhcpServerConnectPoint().orElse(null);
    VlanId dhcpConnectVlan = serverInfo.getDhcpConnectVlan().orElse(null);
    if (dhcpServerConnectPoint != null && dhcpConnectVlan != null) {
        serverInterface = interfaceService.getInterfacesByPort(dhcpServerConnectPoint).stream().filter(iface -> Dhcp6HandlerUtil.interfaceContainsVlan(iface, dhcpConnectVlan)).findFirst().orElse(null);
    } else {
        log.warn("DHCP server {} not resolve yet connectPoint {} vlan {}", serverInfo.getDhcpServerIp6(), dhcpServerConnectPoint, dhcpConnectVlan);
    }
    return serverInterface;
}

Example 29 with Interface

use of org.onosproject.net.intf.Interface in project onos by opennetworkinglab.

the class Dhcp6HandlerUtil method processLQ6PacketFromServer.

/**
 * process the LQ reply packet from dhcp server.
 *
 * @param defaultServerInfoList default server list
 * @param indirectServerInfoList default indirect server list
 * @param serverInterface server interface
 * @param interfaceService interface service
 * @param hostService host service
 * @param context packet context
 * @param receivedPacket server ethernet packet
 * @param recevingInterfaces set of server side interfaces
 * @return a packet ready to be sent to relevant output interface
 */
public static InternalPacket processLQ6PacketFromServer(List<DhcpServerInfo> defaultServerInfoList, List<DhcpServerInfo> indirectServerInfoList, Interface serverInterface, InterfaceService interfaceService, HostService hostService, PacketContext context, Ethernet receivedPacket, Set<Interface> recevingInterfaces) {
    // get dhcp6 header.
    Ethernet etherReply = (Ethernet) receivedPacket.clone();
    IPv6 ipv6Packet = (IPv6) etherReply.getPayload();
    UDP udpPacket = (UDP) ipv6Packet.getPayload();
    DHCP6 lq6Reply = (DHCP6) udpPacket.getPayload();
    // TODO: refactor
    ConnectPoint receivedFrom = context.inPacket().receivedFrom();
    DeviceId receivedFromDevice = receivedFrom.deviceId();
    DhcpServerInfo serverInfo;
    Ip6Address dhcpServerIp = null;
    ConnectPoint dhcpServerConnectPoint = null;
    MacAddress dhcpConnectMac = null;
    VlanId dhcpConnectVlan = null;
    Ip6Address dhcpGatewayIp = null;
    // todo: refactor
    Ip6Address indirectDhcpServerIp = null;
    ConnectPoint indirectDhcpServerConnectPoint = null;
    MacAddress indirectDhcpConnectMac = null;
    VlanId indirectDhcpConnectVlan = null;
    Ip6Address indirectDhcpGatewayIp = null;
    Ip6Address indirectRelayAgentIpFromCfg = null;
    if (!defaultServerInfoList.isEmpty()) {
        serverInfo = defaultServerInfoList.get(0);
        dhcpConnectMac = serverInfo.getDhcpConnectMac().orElse(null);
        dhcpGatewayIp = serverInfo.getDhcpGatewayIp6().orElse(null);
        dhcpServerIp = serverInfo.getDhcpServerIp6().orElse(null);
        dhcpServerConnectPoint = serverInfo.getDhcpServerConnectPoint().orElse(null);
        dhcpConnectVlan = serverInfo.getDhcpConnectVlan().orElse(null);
    }
    if (!indirectServerInfoList.isEmpty()) {
        serverInfo = indirectServerInfoList.get(0);
        indirectDhcpConnectMac = serverInfo.getDhcpConnectMac().orElse(null);
        indirectDhcpGatewayIp = serverInfo.getDhcpGatewayIp6().orElse(null);
        indirectDhcpServerIp = serverInfo.getDhcpServerIp6().orElse(null);
        indirectDhcpServerConnectPoint = serverInfo.getDhcpServerConnectPoint().orElse(null);
        indirectDhcpConnectVlan = serverInfo.getDhcpConnectVlan().orElse(null);
        indirectRelayAgentIpFromCfg = serverInfo.getRelayAgentIp6(receivedFromDevice).orElse(null);
    }
    Boolean directConnFlag = directlyConnected(lq6Reply);
    ConnectPoint inPort = context.inPacket().receivedFrom();
    if ((directConnFlag || indirectDhcpServerIp == null) && !inPort.equals(dhcpServerConnectPoint)) {
        log.warn("Receiving port {} is not the same as server connect point {} for direct or indirect-null", inPort, dhcpServerConnectPoint);
        return null;
    }
    if (!directConnFlag && indirectDhcpServerIp != null && !inPort.equals(indirectDhcpServerConnectPoint)) {
        log.warn("Receiving port {} is not the same as server connect point {} for indirect", inPort, indirectDhcpServerConnectPoint);
        return null;
    }
    Ip6Address nextHopIP = Ip6Address.valueOf(ipv6Packet.getDestinationAddress());
    // use hosts store to find out the next hop mac and connection point
    Set<Host> hosts = hostService.getHostsByIp(nextHopIP);
    Host host;
    if (!hosts.isEmpty()) {
        host = hosts.iterator().next();
    } else {
        log.warn("Host {} is not in store", nextHopIP);
        return null;
    }
    HostLocation hl = host.location();
    // iterator().next());
    String clientConnectionPointStr = hl.toString();
    ConnectPoint clientConnectionPoint = ConnectPoint.deviceConnectPoint(clientConnectionPointStr);
    VlanId originalPacketVlanId = VlanId.vlanId(etherReply.getVlanID());
    Interface iface;
    iface = interfaceService.getInterfacesByPort(clientConnectionPoint).stream().filter(iface1 -> interfaceContainsVlan(iface1, originalPacketVlanId)).findFirst().orElse(null);
    etherReply.setSourceMACAddress(iface.mac());
    etherReply.setDestinationMACAddress(host.mac());
    // workaround for a bug where core sends src port as 547 (server)
    udpPacket.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
    udpPacket.setPayload(lq6Reply);
    udpPacket.resetChecksum();
    ipv6Packet.setPayload(udpPacket);
    etherReply.setPayload(ipv6Packet);
    return InternalPacket.internalPacket(etherReply, clientConnectionPoint);
}

Example 30 with Interface

use of org.onosproject.net.intf.Interface in project onos by opennetworkinglab.

the class SimpleFabricForwarding method buildBrcIntents.

// Build Boadcast Intents for a L2 Network.
private Set<SinglePointToMultiPointIntent> buildBrcIntents(FabricNetwork fabricNetwork) {
    Set<Interface> interfaces = fabricNetwork.interfaces();
    if (interfaces.size() < 2 || !fabricNetwork.isForward() || !fabricNetwork.isBroadcast()) {
        return ImmutableSet.of();
    }
    Set<SinglePointToMultiPointIntent> brcIntents = Sets.newHashSet();
    ResourceGroup resourceGroup = ResourceGroup.of(fabricNetwork.name());
    // Generates broadcast Intents from any network interface to other
    // network interface from the L2 Network.
    interfaces.forEach(src -> {
        FilteredConnectPoint srcFcp = buildFilteredConnectedPoint(src);
        Set<FilteredConnectPoint> dstFcps = interfaces.stream().filter(iface -> !iface.equals(src)).map(this::buildFilteredConnectedPoint).collect(Collectors.toSet());
        Key key = buildKey(fabricNetwork.name(), "BCAST", srcFcp.connectPoint(), MacAddress.BROADCAST);
        TrafficSelector selector = DefaultTrafficSelector.builder().matchEthDst(MacAddress.BROADCAST).build();
        SinglePointToMultiPointIntent.Builder intentBuilder = SinglePointToMultiPointIntent.builder().appId(appId).key(key).selector(selector).filteredIngressPoint(srcFcp).filteredEgressPoints(dstFcps).constraints(buildConstraints(L2NETWORK_CONSTRAINTS, fabricNetwork.encapsulation())).priority(PRI_L2NETWORK_BROADCAST).resourceGroup(resourceGroup);
        brcIntents.add(intentBuilder.build());
    });
    return brcIntents;
}