Examples with Prefixes org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.prefix.to._interface.vpn.ids.Prefixes used on opensource projects

Example 31 with Prefixes

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.prefix.to._interface.vpn.ids.Prefixes in project netvirt by opendaylight.

the class VpnInterfaceOpListener method postProcessVpnInterfaceRemoval.

private void postProcessVpnInterfaceRemoval(InstanceIdentifier<VpnInterfaceOpDataEntry> identifier, VpnInterfaceOpDataEntry del, WriteTransaction writeOperTxn) {
    final VpnInterfaceOpDataEntryKey key = identifier.firstKeyOf(VpnInterfaceOpDataEntry.class, VpnInterfaceOpDataEntryKey.class);
    String interfaceName = key.getName();
    String vpnName = del.getVpnInstanceName();
    LOG.info("postProcessVpnInterfaceRemoval: interface name {} vpnName {} dpn {}", interfaceName, vpnName, del.getDpnId());
    // decrement the vpn interface count in Vpn Instance Op Data
    Optional<VpnInstance> vpnInstance = VpnUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, VpnOperDsUtils.getVpnInstanceToVpnIdIdentifier(vpnName));
    if (vpnInstance.isPresent()) {
        String rd = null;
        rd = vpnInstance.get().getVrfId();
        VpnInstanceOpDataEntry vpnInstOp = VpnUtil.getVpnInstanceOpData(dataBroker, rd);
        AdjacenciesOp adjs = del.getAugmentation(AdjacenciesOp.class);
        List<Adjacency> adjList = adjs != null ? adjs.getAdjacency() : null;
        if (vpnInstOp != null && adjList != null && adjList.size() > 0) {
            /*
                 * When a VPN Interface is removed by FibManager (aka VrfEntryListener and its cohorts),
                 * one adjacency for that VPN Interface will be hanging around along with that
                 * VPN Interface.   That adjacency could be primary (or) non-primary.
                 * If its a primary adjacency, then a prefix-to-interface entry will be available for the
                 * same.  If its a non-primary adjacency, then a prefix-to-interface entry will not be
                 * available for the same, instead we will have vpn-to-extraroutes filled in for them.
                 *
                 * Here we try to remove prefix-to-interface entry for pending adjacency in the deleted
                 * vpnInterface.   More importantly, we also update the vpnInstanceOpData by removing this
                 * vpnInterface from it.
                 */
            List<Prefixes> prefixToInterface = new ArrayList<>();
            for (Adjacency adjacency : adjs.getAdjacency()) {
                List<Prefixes> prefixToInterfaceLocal = new ArrayList<>();
                Optional<Prefixes> prefix = VpnUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL, VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), VpnUtil.getIpPrefix(adjacency.getIpAddress())));
                if (prefix.isPresent()) {
                    prefixToInterfaceLocal.add(prefix.get());
                }
                if (prefixToInterfaceLocal.isEmpty()) {
                    for (String nh : adjacency.getNextHopIpList()) {
                        prefix = VpnUtil.read(dataBroker, LogicalDatastoreType.OPERATIONAL, VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), VpnUtil.getIpPrefix(nh)));
                        if (prefix.isPresent()) {
                            prefixToInterfaceLocal.add(prefix.get());
                        }
                    }
                }
                if (!prefixToInterfaceLocal.isEmpty()) {
                    prefixToInterface.addAll(prefixToInterfaceLocal);
                }
            }
            /*
                 * In VPN Migration scenarios, there is a race condition where we use the new DPNID
                 * for the migrated VM instead of old DPNID because when we read prefix-to-interface to cleanup
                 * old DPNID, we actually get the new DPNID.
                 *
                 * More dangerously, we tend to alter the new prefix-to-interface which should be retained intac
                 * for the migration to succeed in L3VPN.  As a workaround, here we are going to use the dpnId in
                 * the deleted vpnInterface itself instead of tinkering with the prefix-to-interface.  Further we
                 * will tinker prefix-to-interface only when are damn sure if its value matches our
                 * deleted vpnInterface.
                 *
                 */
            for (Prefixes pref : prefixToInterface) {
                if (isMatchedPrefixToInterface(pref, del)) {
                    if (writeOperTxn != null) {
                        writeOperTxn.delete(LogicalDatastoreType.OPERATIONAL, VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), pref.getIpAddress()));
                    } else {
                        VpnUtil.delete(dataBroker, LogicalDatastoreType.OPERATIONAL, VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), pref.getIpAddress()), VpnUtil.DEFAULT_CALLBACK);
                    }
                }
            }
        }
        if (del.getDpnId() != null) {
            vpnFootprintService.updateVpnToDpnMapping(del.getDpnId(), del.getVpnInstanceName(), rd, interfaceName, null, /*ipAddressSourceValuePair*/
            false);
        }
        LOG.info("postProcessVpnInterfaceRemoval: Removed vpn operational data and updated vpn footprint" + " for interface {} on dpn {} vpn {}", interfaceName, del.getDpnId(), vpnName);
    } else {
        LOG.error("postProcessVpnInterfaceRemoval: rd not retrievable as vpninstancetovpnid for vpn {} is absent," + " trying rd as {}. interface {} dpn {}", vpnName, vpnName, interfaceName, del.getDpnId());
    }
    notifyTaskIfRequired(interfaceName);
}

Example 32 with Prefixes

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.prefix.to._interface.vpn.ids.Prefixes in project netvirt by opendaylight.

the class IVpnLinkServiceImpl method leakRoute.

// TODO Clean up the exception handling
@SuppressWarnings("checkstyle:IllegalCatch")
@Override
public void leakRoute(InterVpnLinkDataComposite interVpnLink, String srcVpnUuid, String dstVpnUuid, String prefix, Long label, RouteOrigin forcedOrigin) {
    String ivpnLinkName = interVpnLink.getInterVpnLinkName();
    // The source VPN must participate in the InterVpnLink
    Preconditions.checkArgument(interVpnLink.isVpnLinked(srcVpnUuid), "The source VPN {} does not participate in the interVpnLink {}", srcVpnUuid, ivpnLinkName);
    // The destination VPN must participate in the InterVpnLink
    Preconditions.checkArgument(interVpnLink.isVpnLinked(dstVpnUuid), "The destination VPN {} does not participate in the interVpnLink {}", dstVpnUuid, ivpnLinkName);
    String endpointIp = interVpnLink.getOtherEndpointIpAddr(dstVpnUuid);
    String leakedOrigin = forcedOrigin != null ? forcedOrigin.getValue() : RouteOrigin.INTERVPN.getValue();
    FibHelper.buildRoutePath(endpointIp, label);
    VrfEntry newVrfEntry = new VrfEntryBuilder().setKey(new VrfEntryKey(prefix)).setDestPrefix(prefix).setRoutePaths(Collections.singletonList(FibHelper.buildRoutePath(endpointIp, label))).setOrigin(leakedOrigin).build();
    String dstVpnRd = VpnUtil.getVpnRd(dataBroker, dstVpnUuid);
    InstanceIdentifier<VrfEntry> newVrfEntryIid = InstanceIdentifier.builder(FibEntries.class).child(VrfTables.class, new VrfTablesKey(dstVpnRd)).child(VrfEntry.class, new VrfEntryKey(newVrfEntry.getDestPrefix())).build();
    VpnUtil.asyncWrite(dataBroker, LogicalDatastoreType.CONFIGURATION, newVrfEntryIid, newVrfEntry);
    // Finally, route is advertised it to the DC-GW. But while in the FibEntries the nexthop is the other
    // endpoint's IP, in the DC-GW the nexthop for those prefixes are the IPs of those DPNs where the target
    // VPN has been instantiated
    List<BigInteger> srcDpnList = interVpnLink.getEndpointDpnsByVpnName(srcVpnUuid);
    List<String> nexthops = srcDpnList.stream().map(dpnId -> InterfaceUtils.getEndpointIpAddressForDPN(dataBroker, dpnId)).collect(Collectors.toList());
    LOG.debug("Advertising route in VPN={} [prefix={} label={}  nexthops={}] to DC-GW", dstVpnRd, newVrfEntry.getDestPrefix(), label.intValue(), nexthops);
    try {
        bgpManager.advertisePrefix(dstVpnRd, null, /*macAddress*/
        prefix, nexthops, VrfEntry.EncapType.Mplsgre, label.intValue(), 0, /*l3vni*/
        0, /*l2vni*/
        null);
    } catch (Exception e) {
        LOG.error("Exception while advertising prefix {} on vpnRd {} for intervpn link", prefix, dstVpnRd, e);
    }
}

Example 33 with Prefixes

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.prefix.to._interface.vpn.ids.Prefixes in project netvirt by opendaylight.

the class InterVpnLinkUtil method leakRoute.

/**
 * Leaks a route from one VPN to another. By default, the origin for this leaked route is INTERVPN.
 *
 * @param broker dataBroker service reference
 * @param bgpManager Used to advertise routes to the BGP Router
 * @param interVpnLink Reference to the object that holds the info about the link between the 2 VPNs
 * @param srcVpnUuid UUID of the VPN that has the route that is going to be leaked to the other VPN
 * @param dstVpnUuid UUID of the VPN that is going to receive the route
 * @param prefix Prefix of the route
 * @param label Label of the route in the original VPN
 */
// TODO Clean up the exception handling
@SuppressWarnings("checkstyle:IllegalCatch")
public static void leakRoute(DataBroker broker, IBgpManager bgpManager, InterVpnLink interVpnLink, String srcVpnUuid, String dstVpnUuid, String prefix, Long label) {
    Preconditions.checkNotNull(interVpnLink);
    // The source VPN must participate in the InterVpnLink
    Preconditions.checkArgument(interVpnLink.getFirstEndpoint().getVpnUuid().getValue().equals(srcVpnUuid) || interVpnLink.getSecondEndpoint().getVpnUuid().getValue().equals(srcVpnUuid), "The source VPN {} does not participate in the interVpnLink {}", srcVpnUuid, interVpnLink.getName());
    // The destination VPN must participate in the InterVpnLink
    Preconditions.checkArgument(interVpnLink.getFirstEndpoint().getVpnUuid().getValue().equals(dstVpnUuid) || interVpnLink.getSecondEndpoint().getVpnUuid().getValue().equals(dstVpnUuid), "The destination VPN {} does not participate in the interVpnLink {}", dstVpnUuid, interVpnLink.getName());
    boolean destinationIs1stEndpoint = interVpnLink.getFirstEndpoint().getVpnUuid().getValue().equals(dstVpnUuid);
    String endpointIp = destinationIs1stEndpoint ? interVpnLink.getSecondEndpoint().getIpAddress().getValue() : interVpnLink.getFirstEndpoint().getIpAddress().getValue();
    VrfEntry newVrfEntry = FibHelper.getVrfEntryBuilder(prefix, label, endpointIp, RouteOrigin.INTERVPN, null).build();
    String dstVpnRd = VpnUtil.getVpnRd(broker, dstVpnUuid);
    InstanceIdentifier<VrfEntry> newVrfEntryIid = InstanceIdentifier.builder(FibEntries.class).child(VrfTables.class, new VrfTablesKey(dstVpnRd)).child(VrfEntry.class, new VrfEntryKey(newVrfEntry.getDestPrefix())).build();
    VpnUtil.asyncWrite(broker, LogicalDatastoreType.CONFIGURATION, newVrfEntryIid, newVrfEntry);
    // Finally, route is advertised it to the DC-GW. But while in the FibEntries the nexthop is the other
    // endpoint's IP, in the DC-GW the nexthop for those prefixes are the IPs of those DPNs where the target
    // VPN has been instantiated
    Optional<InterVpnLinkState> optVpnLinkState = getInterVpnLinkState(broker, interVpnLink.getName());
    if (optVpnLinkState.isPresent()) {
        InterVpnLinkState vpnLinkState = optVpnLinkState.get();
        List<BigInteger> dpnIdList = destinationIs1stEndpoint ? vpnLinkState.getFirstEndpointState().getDpId() : vpnLinkState.getSecondEndpointState().getDpId();
        List<String> nexthops = new ArrayList<>();
        for (BigInteger dpnId : dpnIdList) {
            nexthops.add(InterfaceUtils.getEndpointIpAddressForDPN(broker, dpnId));
        }
        try {
            LOG.debug("Advertising route in VPN={} [prefix={} label={}  nexthops={}] to DC-GW", dstVpnRd, newVrfEntry.getDestPrefix(), label.intValue(), nexthops);
            bgpManager.advertisePrefix(dstVpnRd, null, /*macAddress*/
            newVrfEntry.getDestPrefix(), nexthops, VrfEntry.EncapType.Mplsgre, label.intValue(), 0, /*l3vni*/
            0, /*l2vni*/
            null);
        } catch (Exception ex) {
            LOG.error("Could not advertise prefix {} with label {} to VPN rd={}", newVrfEntry.getDestPrefix(), label.intValue(), dstVpnRd, ex);
        }
    } else {
        LOG.warn("Error when advertising leaked routes: Could not find State for InterVpnLink={}", interVpnLink.getName());
    }
}

Example 34 with Prefixes

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.prefix.to._interface.vpn.ids.Prefixes in project netvirt by opendaylight.

the class FibUtil method updateUsedRdAndVpnToExtraRoute.

public void updateUsedRdAndVpnToExtraRoute(WriteTransaction writeOperTxn, String tunnelIpRemoved, String primaryRd, String prefix) {
    Optional<VpnInstanceOpDataEntry> optVpnInstance = getVpnInstanceOpData(primaryRd);
    if (!optVpnInstance.isPresent()) {
        return;
    }
    VpnInstanceOpDataEntry vpnInstance = optVpnInstance.get();
    String vpnName = vpnInstance.getVpnInstanceName();
    long vpnId = vpnInstance.getVpnId();
    List<String> usedRds = VpnExtraRouteHelper.getUsedRds(dataBroker, vpnId, prefix);
    // which rd is allocated for the particular OVS.
    for (String usedRd : usedRds) {
        Optional<Routes> vpnExtraRoutes = VpnExtraRouteHelper.getVpnExtraroutes(dataBroker, vpnName, usedRd, prefix);
        if (vpnExtraRoutes.isPresent()) {
            // Since all the nexthops under one OVS will be present under one rd, only 1 nexthop is read
            // to identify the OVS
            String nextHopRemoved = vpnExtraRoutes.get().getNexthopIpList().get(0);
            Prefixes prefixToInterface = getPrefixToInterface(vpnId, getIpPrefix(nextHopRemoved));
            if (prefixToInterface != null && tunnelIpRemoved.equals(getEndpointIpAddressForDPN(prefixToInterface.getDpnId()))) {
                InstanceIdentifier<Adjacency> adjId = getAdjacencyIdentifier(prefixToInterface.getVpnInterfaceName(), prefix);
                Interface ifState = getInterfaceStateFromOperDS(prefixToInterface.getVpnInterfaceName());
                // Delete datastore only if extra route is deleted or VM interface is deleted/down
                if (!MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, adjId).isPresent() || ifState == null || ifState.getOperStatus() == OperStatus.Down) {
                    writeOperTxn.delete(LogicalDatastoreType.OPERATIONAL, getAdjacencyIdentifier(prefixToInterface.getVpnInterfaceName(), prefix));
                    writeOperTxn.delete(LogicalDatastoreType.OPERATIONAL, VpnExtraRouteHelper.getVpnToExtrarouteVrfIdIdentifier(vpnName, usedRd, prefix));
                    writeOperTxn.delete(LogicalDatastoreType.CONFIGURATION, VpnExtraRouteHelper.getUsedRdsIdentifier(vpnId, prefix, nextHopRemoved));
                    break;
                }
            }
        }
    }
}

Example 35 with Prefixes

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.l3vpn.rev130911.prefix.to._interface.vpn.ids.Prefixes in project netvirt by opendaylight.

the class NexthopManager method getBucketsForRemoteNexthop.

private List<BucketInfo> getBucketsForRemoteNexthop(Long vpnId, BigInteger dpnId, VrfEntry vrfEntry, String rd, List<Routes> vpnExtraRoutes) {
    List<BucketInfo> listBucketInfo = new ArrayList<>();
    Map<String, List<ActionInfo>> egressActionMap = new HashMap<>();
    vpnExtraRoutes.forEach(vpnExtraRoute -> vpnExtraRoute.getNexthopIpList().forEach(nextHopIp -> {
        String nextHopPrefixIp;
        if (isIpv4Address(nextHopIp)) {
            nextHopPrefixIp = nextHopIp + NwConstants.IPV4PREFIX;
        } else {
            nextHopPrefixIp = nextHopIp + NwConstants.IPV6PREFIX;
        }
        List<String> tepIpAddresses = fibUtil.getNextHopAddresses(rd, nextHopPrefixIp);
        if (tepIpAddresses.isEmpty()) {
            return;
        }
        // There would be only one nexthop address for a VM ip which would be the tep Ip
        String tepIp = tepIpAddresses.get(0);
        AdjacencyResult adjacencyResult = getRemoteNextHopPointer(dpnId, vpnId, vrfEntry.getDestPrefix(), tepIp);
        if (adjacencyResult == null) {
            return;
        }
        String egressInterface = adjacencyResult.getInterfaceName();
        if (!FibUtil.isTunnelInterface(adjacencyResult)) {
            return;
        }
        Class<? extends TunnelTypeBase> tunnelType = VpnExtraRouteHelper.getTunnelType(interfaceManager, egressInterface);
        Interface ifState = fibUtil.getInterfaceStateFromOperDS(egressInterface);
        if (ifState == null || ifState.getOperStatus() != OperStatus.Up) {
            LOG.trace("Tunnel not up {}", egressInterface);
            return;
        }
        if (!TunnelTypeVxlan.class.equals(tunnelType)) {
            return;
        }
        Long label = FibUtil.getLabelFromRoutePaths(vrfEntry).get();
        Prefixes prefixInfo = fibUtil.getPrefixToInterface(vpnId, nextHopPrefixIp);
        BigInteger tunnelId;
        if (fibUtil.enforceVxlanDatapathSemanticsforInternalRouterVpn(prefixInfo.getSubnetId(), vpnId, rd)) {
            java.util.Optional<Long> optionalVni = fibUtil.getVniForVxlanNetwork(prefixInfo.getSubnetId());
            if (!optionalVni.isPresent()) {
                LOG.error("VNI not found for nexthop {} vrfEntry {} with subnetId {}", nextHopIp, vrfEntry, prefixInfo.getSubnetId());
                return;
            }
            tunnelId = BigInteger.valueOf(optionalVni.get());
        } else {
            tunnelId = BigInteger.valueOf(label);
        }
        List<ActionInfo> actionInfos = new ArrayList<>();
        actionInfos.add(new ActionSetFieldTunnelId(tunnelId));
        String ifName = prefixInfo.getVpnInterfaceName();
        String vpnName = fibUtil.getVpnNameFromId(vpnId);
        if (vpnName == null) {
            return;
        }
        String macAddress = fibUtil.getMacAddressFromPrefix(ifName, vpnName, nextHopPrefixIp);
        actionInfos.add(new ActionSetFieldEthernetDestination(actionInfos.size(), new MacAddress(macAddress)));
        List<ActionInfo> egressActions;
        if (egressActionMap.containsKey(egressInterface)) {
            egressActions = egressActionMap.get(egressInterface);
        } else {
            egressActions = getEgressActionsForInterface(egressInterface, actionInfos.size());
            egressActionMap.put(egressInterface, egressActions);
        }
        if (egressActions.isEmpty()) {
            LOG.error("Failed to retrieve egress action for prefix {} route-paths {}" + " interface {}." + " Aborting remote FIB entry creation.", vrfEntry.getDestPrefix(), vrfEntry.getRoutePaths(), egressInterface);
        }
        actionInfos.addAll(egressActions);
        BucketInfo bucket = new BucketInfo(actionInfos);
        bucket.setWeight(1);
        listBucketInfo.add(bucket);
    }));
    LOG.trace("LOCAL: listbucket {}, rd {}, dpnId {}, routes {}", listBucketInfo, rd, dpnId, vpnExtraRoutes);
    return listBucketInfo;
}