Examples with Node Nodes.Node used on opensource projects

Example 6 with Node

use of Nodes.Node in project netvirt by opendaylight.

the class NaptEventHandler method getFlowRef.

public static FlowRef getFlowRef(BigInteger dpId, Flow flow) {
    FlowKey flowKey = new FlowKey(new FlowId(flow.getId()));
    Node nodeDpn = buildInventoryDpnNode(dpId);
    InstanceIdentifier<Flow> flowInstanceId = InstanceIdentifier.builder(Nodes.class).child(Node.class, nodeDpn.getKey()).augmentation(FlowCapableNode.class).child(Table.class, new TableKey(flow.getTableId())).child(Flow.class, flowKey).build();
    return new FlowRef(flowInstanceId);
}

Example 7 with Node

use of Nodes.Node in project netvirt by opendaylight.

the class NaptFlowRemovedEventHandler method onFlowRemoved.

@Override
public void onFlowRemoved(FlowRemoved flowRemoved) {
    /*
        If the removed flow is from the OUTBOUND NAPT table :
        1) Get the ActionInfo of the flow.
        2) From the ActionInfo of the flow get the internal IP address, port and the protocol.
        3) Get the Metadata matching info of the flow.
        4) From the Metadata matching info of the flow get router ID.
        5) Querry the container intext-ip-port-map using the router ID
           and the internal IP address, port to get the external IP address, port
        6) Instantiate an NaptEntry event and populate the external IP address, port and the router ID.
        7) Place the NaptEntry event to the queue.
*/
    short tableId = flowRemoved.getTableId();
    RemovedFlowReason removedReasonFlag = flowRemoved.getReason();
    if (tableId == NwConstants.OUTBOUND_NAPT_TABLE && RemovedFlowReason.OFPRRIDLETIMEOUT.equals(removedReasonFlag)) {
        LOG.info("onFlowRemoved : triggered for table-{} entry", tableId);
        // Get the internal internal IP address and the port number from the IPv4 match.
        Ipv4Prefix internalIpv4Address = null;
        Layer3Match layer3Match = flowRemoved.getMatch().getLayer3Match();
        if (layer3Match instanceof Ipv4Match) {
            Ipv4Match internalIpv4Match = (Ipv4Match) layer3Match;
            internalIpv4Address = internalIpv4Match.getIpv4Source();
        }
        if (internalIpv4Address == null) {
            LOG.error("onFlowRemoved : Matching internal IP is null while retrieving the " + "value from the Outbound NAPT flow");
            return;
        }
        // Get the internal IP as a string
        String internalIpv4AddressAsString = internalIpv4Address.getValue();
        String[] internalIpv4AddressParts = internalIpv4AddressAsString.split("/");
        String internalIpv4HostAddress = null;
        if (internalIpv4AddressParts.length >= 1) {
            internalIpv4HostAddress = internalIpv4AddressParts[0];
        }
        // Get the protocol from the layer4 match
        NAPTEntryEvent.Protocol protocol = null;
        Integer internalPortNumber = null;
        Layer4Match layer4Match = flowRemoved.getMatch().getLayer4Match();
        if (layer4Match instanceof TcpMatch) {
            TcpMatchFields tcpMatchFields = (TcpMatchFields) layer4Match;
            internalPortNumber = tcpMatchFields.getTcpSourcePort().getValue();
            protocol = NAPTEntryEvent.Protocol.TCP;
        } else if (layer4Match instanceof UdpMatch) {
            UdpMatchFields udpMatchFields = (UdpMatchFields) layer4Match;
            internalPortNumber = udpMatchFields.getUdpSourcePort().getValue();
            protocol = NAPTEntryEvent.Protocol.UDP;
        }
        if (protocol == null) {
            LOG.error("onFlowRemoved : Matching protocol is null while retrieving the value " + "from the Outbound NAPT flow");
            return;
        }
        // Get the router ID from the metadata.
        Long routerId;
        BigInteger metadata = flowRemoved.getMatch().getMetadata().getMetadata();
        if (MetaDataUtil.getNatRouterIdFromMetadata(metadata) != 0) {
            routerId = MetaDataUtil.getNatRouterIdFromMetadata(metadata);
        } else {
            LOG.error("onFlowRemoved : Null exception while retrieving routerId");
            return;
        }
        final String internalIpPortKey = routerId + NatConstants.COLON_SEPARATOR + internalIpv4HostAddress + NatConstants.COLON_SEPARATOR + internalPortNumber;
        // Get the external IP address and the port from the model
        IpPortExternal ipPortExternal = NatUtil.getExternalIpPortMap(dataBroker, routerId, internalIpv4HostAddress, internalPortNumber.toString(), protocol);
        if (ipPortExternal == null) {
            LOG.error("onFlowRemoved : IpPortExternal not found, BGP vpn might be " + "associated with router");
            // router must be associated with BGP vpn ID
            long bgpVpnId = routerId;
            LOG.debug("onFlowRemoved : BGP VPN ID {}", bgpVpnId);
            String vpnName = NatUtil.getRouterName(dataBroker, bgpVpnId);
            String routerName = NatUtil.getRouterIdfromVpnInstance(dataBroker, vpnName);
            if (routerName == null) {
                LOG.error("onFlowRemoved : Unable to find router for VpnName {}", vpnName);
                return;
            }
            routerId = NatUtil.getVpnId(dataBroker, routerName);
            LOG.debug("onFlowRemoved : Router ID {}", routerId);
            ipPortExternal = NatUtil.getExternalIpPortMap(dataBroker, routerId, internalIpv4HostAddress, internalPortNumber.toString(), protocol);
            if (ipPortExternal == null) {
                LOG.error("onFlowRemoved : IpPortExternal is null while queried from the " + "model for routerId {}", routerId);
                return;
            }
        }
        String externalIpAddress = ipPortExternal.getIpAddress();
        int externalPortNumber = ipPortExternal.getPortNum();
        // Create an NAPT event and place it in the queue.
        NAPTEntryEvent naptEntryEvent = new NAPTEntryEvent(externalIpAddress, externalPortNumber, routerId, NAPTEntryEvent.Operation.DELETE, protocol, null, false, null);
        naptEventdispatcher.addFlowRemovedNaptEvent(naptEntryEvent);
        // Get the DPN ID from the Node
        InstanceIdentifier<Node> nodeRef = flowRemoved.getNode().getValue().firstIdentifierOf(Node.class);
        String dpn = nodeRef.firstKeyOf(Node.class).getId().getValue();
        BigInteger dpnId = getDpnId(dpn);
        String switchFlowRef = NatUtil.getNaptFlowRef(dpnId, tableId, String.valueOf(routerId), internalIpv4HostAddress, internalPortNumber);
        // Inform the MDSAL manager to inform about the flow removal.
        LOG.debug("onFlowRemoved : DPN ID {}, Metadata {}, SwitchFlowRef {}, " + "internalIpv4HostAddress{}", dpnId, routerId, switchFlowRef, internalIpv4AddressAsString);
        FlowEntity snatFlowEntity = NatUtil.buildFlowEntity(dpnId, tableId, switchFlowRef);
        long startTime = System.currentTimeMillis();
        mdsalManager.removeFlow(snatFlowEntity);
        LOG.debug("onFlowRemoved : Elapsed time fo deleting table-{} flow for snat ({}) session:{}ms", tableId, internalIpPortKey, (System.currentTimeMillis() - startTime));
        // Remove the SourceIP:Port key from the Napt packet handler map.
        naptPacketInHandler.removeIncomingPacketMap(internalIpPortKey);
        // Remove the mapping of internal fixed ip/port to external ip/port from the datastore.
        SessionAddress internalSessionAddress = new SessionAddress(internalIpv4HostAddress, internalPortNumber);
        naptManager.releaseIpExtPortMapping(routerId, internalSessionAddress, protocol);
        LOG.info("onFlowRemoved : exit");
    } else {
        LOG.debug("onFlowRemoved : Received flow removed notification due to flowdelete from switch for flowref");
    }
}

Example 8 with Node

use of Nodes.Node in project netvirt by opendaylight.

the class Ipv6PktHandlerTest method testonPacketReceivedRouterSolicitationWithMultipleSubnets.

@Test
public void testonPacketReceivedRouterSolicitationWithMultipleSubnets() throws Exception {
    VirtualPort intf = Mockito.mock(VirtualPort.class);
    when(intf.getMacAddress()).thenReturn("50:7B:9D:78:54:F3");
    when(ifMgrInstance.obtainV6Interface(any())).thenReturn(intf);
    when(ifMgrInstance.getInterfaceNameFromTag(anyLong())).thenReturn("ddec9dba-d831-4ad7-84b9-00d7f65f052f");
    when(ifMgrInstance.getRouterV6InterfaceForNetwork(any())).thenReturn(intf);
    IpAddress gwIpAddress = Mockito.mock(IpAddress.class);
    when(gwIpAddress.getIpv4Address()).thenReturn(null);
    when(gwIpAddress.getIpv6Address()).thenReturn(new Ipv6Address("2001:db8:1111::1"));
    VirtualSubnet v6Subnet1 = VirtualSubnet.builder().gatewayIp(gwIpAddress).subnetCidr(new IpPrefix("2001:db8:1111::/64".toCharArray())).ipv6AddressMode(Ipv6Constants.IPV6_SLAAC).ipv6RAMode(Ipv6Constants.IPV6_SLAAC).build();
    VirtualRouter virtualRouter = VirtualRouter.builder().build();
    v6Subnet1.setRouter(virtualRouter);
    VirtualSubnet v6Subnet2 = VirtualSubnet.builder().gatewayIp(gwIpAddress).subnetCidr(new IpPrefix("2001:db8:2222::/64".toCharArray())).ipv6AddressMode(Ipv6Constants.IPV6_DHCPV6_STATELESS).ipv6RAMode(Ipv6Constants.IPV6_DHCPV6_STATELESS).build();
    v6Subnet2.setRouter(virtualRouter);
    VirtualSubnet v6Subnet3 = VirtualSubnet.builder().gatewayIp(gwIpAddress).subnetCidr(new IpPrefix("2001:db8:3333::/64".toCharArray())).ipv6AddressMode(Ipv6Constants.IPV6_DHCPV6_STATEFUL).ipv6RAMode(Ipv6Constants.IPV6_DHCPV6_STATEFUL).build();
    v6Subnet3.setRouter(virtualRouter);
    List<VirtualSubnet> subnetList = new ArrayList<>();
    subnetList.add(v6Subnet1);
    subnetList.add(v6Subnet2);
    subnetList.add(v6Subnet3);
    when(intf.getSubnets()).thenReturn(subnetList);
    InstanceIdentifier<Node> ncId = InstanceIdentifier.builder(Nodes.class).child(Node.class, new NodeKey(new NodeId("openflow:1"))).build();
    NodeConnectorRef ncRef = new NodeConnectorRef(ncId);
    BigInteger mdata = new BigInteger(String.valueOf(0x1000000));
    Metadata metadata = new MetadataBuilder().setMetadata(mdata).build();
    MatchBuilder matchbuilder = new MatchBuilder().setMetadata(metadata);
    pktHandler.onPacketReceived(new PacketReceivedBuilder().setPayload(ipv6TestUtils.buildPacket(// Destination MAC
    "33 33 00 00 00 02", // Source MAC
    "FA 16 3E 69 2C F3", // IPv6
    "86 DD", // Version 6, traffic class E0, no flowlabel
    "60 00 00 00", // Payload length
    "00 10", // Next header is ICMPv6
    "3A", // Hop limit
    "FF", // Source IP
    "FE 80 00 00 00 00 00 00 F8 16 3E FF FE 69 2C F3", // Destination IP
    "FF 02 00 00 00 00 00 00 00 00 00 00 00 00 00 02", // ICMPv6 router solicitation
    "85", // Code
    "00", // Checksum (valid)
    "B4 47", // ICMPv6 message body
    "00 00 00 00", // ICMPv6 Option: Source Link Layer Address
    "01", // Length
    "01", // Link Layer Address
    "FA 16 3E 69 2C F3")).setIngress(ncRef).setMatch(matchbuilder.build()).build());
    // wait on this thread until the async job is completed in the packet handler.
    waitForPacketProcessing();
    verify(pktProcessService, times(1)).transmitPacket(any(TransmitPacketInput.class));
    byte[] expectedPayload = ipv6TestUtils.buildPacket(// Destination MAC
    "FA 16 3E 69 2C F3", // Source MAC
    "50 7B 9D 78 54 F3", // IPv6
    "86 DD", // Version 6, traffic class E0, no flowlabel
    "60 00 00 00", // Payload length
    "00 78", // Next header is ICMPv6
    "3A", // Hop limit
    "FF", // Source IP
    "FE 80 00 00 00 00 00 00 52 7B 9D FF FE 78 54 F3", // Destination IP
    "FE 80 00 00 00 00 00 00 F8 16 3E FF FE 69 2C F3", // ICMPv6 router advertisement.
    "86", // Code
    "00", // Checksum (valid)
    "59 41", // Current Hop Limit
    "40", // ICMPv6 RA Flags
    "C0", // Router Lifetime
    "11 94", // Reachable time
    "00 01 D4 C0", // Retransmission time.
    "00 00 00 00", // Type: Source Link-Layer Option
    "01", // Option length
    "01", // Source Link layer address
    "50 7B 9D 78 54 F3", // Type: Prefix Information
    "03", // Option length
    "04", // Prefix length
    "40", // Prefix flags
    "C0", // Valid lifetime
    "00 27 8D 00", // Preferred lifetime
    "00 09 3A 80", // Reserved
    "00 00 00 00", // Prefix
    "20 01 0D B8 11 11 00 00 00 00 00 00 00 00 00 00", // Type: Prefix Information
    "03", // Option length
    "04", // Prefix length
    "40", // Prefix flags
    "C0", // Valid lifetime
    "00 27 8D 00", // Preferred lifetime
    "00 09 3A 80", // Reserved
    "00 00 00 00", // Prefix
    "20 01 0D B8 22 22 00 00 00 00 00 00 00 00 00 00", // Type: Prefix Information
    "03", // Option length
    "04", // Prefix length
    "40", // Prefix flags
    "80", // Valid lifetime
    "00 27 8D 00", // Preferred lifetime
    "00 09 3A 80", // Reserved
    "00 00 00 00", // Prefix
    "20 01 0D B8 33 33 00 00 00 00 00 00 00 00 00 00");
    verify(pktProcessService).transmitPacket(new TransmitPacketInputBuilder().setPayload(expectedPayload).setNode(new NodeRef(ncId)).setEgress(ncRef).build());
}

Example 9 with Node

use of Nodes.Node in project netvirt by opendaylight.

the class VrfEntryListener method installSubnetBroadcastAddrDropRule.

private void installSubnetBroadcastAddrDropRule(final BigInteger dpnId, final String rd, final long vpnId, final VrfEntry vrfEntry, int addOrRemove, WriteTransaction tx) {
    List<MatchInfo> matches = new ArrayList<>();
    LOG.debug("SUBNETROUTE: installSubnetBroadcastAddrDropRule: destPrefix {} rd {} vpnId {} dpnId {}", vrfEntry.getDestPrefix(), rd, vpnId, dpnId);
    String[] ipAddress = vrfEntry.getDestPrefix().split("/");
    String subnetBroadcastAddr = FibUtil.getBroadcastAddressFromCidr(vrfEntry.getDestPrefix());
    final int prefixLength = ipAddress.length == 1 ? 0 : Integer.parseInt(ipAddress[1]);
    InetAddress destPrefix;
    try {
        destPrefix = InetAddress.getByName(subnetBroadcastAddr);
    } catch (UnknownHostException e) {
        LOG.error("Failed to get destPrefix for prefix {} rd {} VpnId {} DPN {}", vrfEntry.getDestPrefix(), rd, vpnId, dpnId, e);
        return;
    }
    // Match on VpnId and SubnetBroadCast IP address
    matches.add(new MatchMetadata(MetaDataUtil.getVpnIdMetadata(vpnId), MetaDataUtil.METADATA_MASK_VRFID));
    matches.add(MatchEthernetType.IPV4);
    if (prefixLength != 0) {
        matches.add(new MatchIpv4Destination(subnetBroadcastAddr, Integer.toString(IPV4_ADDR_PREFIX_LENGTH)));
    }
    // Action is to drop the packet
    List<InstructionInfo> dropInstructions = new ArrayList<>();
    List<ActionInfo> actionsInfos = new ArrayList<>();
    actionsInfos.add(new ActionDrop());
    dropInstructions.add(new InstructionApplyActions(actionsInfos));
    int priority = DEFAULT_FIB_FLOW_PRIORITY + IPV4_ADDR_PREFIX_LENGTH;
    String flowRef = FibUtil.getFlowRef(dpnId, NwConstants.L3_SUBNET_ROUTE_TABLE, rd, priority, destPrefix);
    FlowEntity flowEntity = MDSALUtil.buildFlowEntity(dpnId, NwConstants.L3_SUBNET_ROUTE_TABLE, flowRef, priority, flowRef, 0, 0, COOKIE_TABLE_MISS, matches, dropInstructions);
    Flow flow = flowEntity.getFlowBuilder().build();
    String flowId = flowEntity.getFlowId();
    FlowKey flowKey = new FlowKey(new FlowId(flowId));
    Node nodeDpn = FibUtil.buildDpnNode(dpnId);
    InstanceIdentifier<Flow> flowInstanceId = InstanceIdentifier.builder(Nodes.class).child(Node.class, nodeDpn.getKey()).augmentation(FlowCapableNode.class).child(Table.class, new TableKey(flow.getTableId())).child(Flow.class, flowKey).build();
    if (addOrRemove == NwConstants.ADD_FLOW) {
        tx.put(LogicalDatastoreType.CONFIGURATION, flowInstanceId, flow, true);
    } else {
        tx.delete(LogicalDatastoreType.CONFIGURATION, flowInstanceId);
    }
}

Example 10 with Node

use of Nodes.Node in project netvirt by opendaylight.

the class VrfEntryListener method createRemoteFibEntry.

private void createRemoteFibEntry(final BigInteger remoteDpnId, final long vpnId, String rd, final VrfEntry vrfEntry, WriteTransaction tx) {
    Boolean wrTxPresent = true;
    if (tx == null) {
        wrTxPresent = false;
        tx = dataBroker.newWriteOnlyTransaction();
    }
    String vpnName = fibUtil.getVpnNameFromId(vpnId);
    LOG.debug("createremotefibentry: adding route {} for rd {} on remoteDpnId {}", vrfEntry.getDestPrefix(), rd, remoteDpnId);
    List<AdjacencyResult> adjacencyResults = baseVrfEntryHandler.resolveAdjacency(remoteDpnId, vpnId, vrfEntry, rd);
    if (adjacencyResults.isEmpty()) {
        LOG.error("Could not get interface for route-paths: {} in vpn {} on DPN {}", vrfEntry.getRoutePaths(), rd, remoteDpnId);
        LOG.error("Failed to add Route: {} in vpn: {}", vrfEntry.getDestPrefix(), rd);
        return;
    }
    List<String> usedRds = VpnExtraRouteHelper.getUsedRds(dataBroker, vpnId, vrfEntry.getDestPrefix());
    List<Routes> vpnExtraRoutes = VpnExtraRouteHelper.getAllVpnExtraRoutes(dataBroker, vpnName, usedRds, vrfEntry.getDestPrefix());
    // multiple VMs
    if (!vpnExtraRoutes.isEmpty() && (vpnExtraRoutes.size() > 1 || vpnExtraRoutes.get(0).getNexthopIpList().size() > 1)) {
        List<InstructionInfo> instructions = new ArrayList<>();
        // Obtain the local routes for this particular dpn.
        java.util.Optional<Routes> routes = vpnExtraRoutes.stream().filter(route -> {
            Prefixes prefixToInterface = fibUtil.getPrefixToInterface(vpnId, fibUtil.getIpPrefix(route.getNexthopIpList().get(0)));
            if (prefixToInterface == null) {
                return false;
            }
            return remoteDpnId.equals(prefixToInterface.getDpnId());
        }).findFirst();
        long groupId = nextHopManager.createNextHopGroups(vpnId, rd, remoteDpnId, vrfEntry, routes.isPresent() ? routes.get() : null, vpnExtraRoutes);
        if (groupId == FibConstants.INVALID_GROUP_ID) {
            LOG.error("Unable to create Group for local prefix {} on rd {} on Node {}", vrfEntry.getDestPrefix(), rd, remoteDpnId.toString());
            return;
        }
        List<ActionInfo> actionInfos = Collections.singletonList(new ActionGroup(groupId));
        instructions.add(new InstructionApplyActions(actionInfos));
        baseVrfEntryHandler.makeConnectedRoute(remoteDpnId, vpnId, vrfEntry, rd, instructions, NwConstants.ADD_FLOW, tx, null);
    } else {
        baseVrfEntryHandler.programRemoteFib(remoteDpnId, vpnId, vrfEntry, tx, rd, adjacencyResults, null);
    }
    if (!wrTxPresent) {
        tx.submit();
    }
    LOG.debug("Successfully added FIB entry for prefix {} in vpnId {}", vrfEntry.getDestPrefix(), vpnId);
}