Examples with InterVpnLink org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.links.InterVpnLink used on opensource projects

Example 1 with InterVpnLink

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.links.InterVpnLink in project netvirt by opendaylight.

the class VrfEntryListener method createFibEntries.

private void createFibEntries(final InstanceIdentifier<VrfEntry> vrfEntryIid, final VrfEntry vrfEntry) {
    final VrfTablesKey vrfTableKey = vrfEntryIid.firstKeyOf(VrfTables.class);
    List<SubTransaction> txnObjects = new ArrayList<>();
    final VpnInstanceOpDataEntry vpnInstance = fibUtil.getVpnInstance(vrfTableKey.getRouteDistinguisher());
    Preconditions.checkNotNull(vpnInstance, "Vpn Instance not available " + vrfTableKey.getRouteDistinguisher());
    Preconditions.checkNotNull(vpnInstance.getVpnId(), "Vpn Instance with rd " + vpnInstance.getVrfId() + " has null vpnId!");
    final Collection<VpnToDpnList> vpnToDpnList;
    if (vrfEntry.getParentVpnRd() != null && FibHelper.isControllerManagedNonSelfImportedRoute(RouteOrigin.value(vrfEntry.getOrigin()))) {
        // This block MUST BE HIT only for PNF (Physical Network Function) FIB Entries.
        VpnInstanceOpDataEntry parentVpnInstance = fibUtil.getVpnInstance(vrfEntry.getParentVpnRd());
        vpnToDpnList = parentVpnInstance != null ? parentVpnInstance.getVpnToDpnList() : vpnInstance.getVpnToDpnList();
        LOG.info("createFibEntries: Processing creation of PNF FIB entry with rd {} prefix {}", vrfEntry.getParentVpnRd(), vrfEntry.getDestPrefix());
    } else {
        vpnToDpnList = vpnInstance.getVpnToDpnList();
    }
    final Long vpnId = vpnInstance.getVpnId();
    final String rd = vrfTableKey.getRouteDistinguisher();
    SubnetRoute subnetRoute = vrfEntry.getAugmentation(SubnetRoute.class);
    if (subnetRoute != null) {
        final long elanTag = subnetRoute.getElantag();
        LOG.trace("SUBNETROUTE: createFibEntries: SubnetRoute augmented vrfentry found for rd {} prefix {}" + " with elantag {}", rd, vrfEntry.getDestPrefix(), elanTag);
        if (vpnToDpnList != null) {
            jobCoordinator.enqueueJob(FibUtil.getJobKeyForRdPrefix(rd, vrfEntry.getDestPrefix()), () -> {
                WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
                for (final VpnToDpnList curDpn : vpnToDpnList) {
                    if (curDpn.getDpnState() == VpnToDpnList.DpnState.Active) {
                        installSubnetRouteInFib(curDpn.getDpnId(), elanTag, rd, vpnId, vrfEntry, tx);
                        installSubnetBroadcastAddrDropRule(curDpn.getDpnId(), rd, vpnId.longValue(), vrfEntry, NwConstants.ADD_FLOW, tx);
                    }
                }
                List<ListenableFuture<Void>> futures = new ArrayList<>();
                futures.add(tx.submit());
                return futures;
            });
        }
        return;
    }
    final List<BigInteger> localDpnIdList = createLocalFibEntry(vpnInstance.getVpnId(), rd, vrfEntry);
    if (!localDpnIdList.isEmpty() && vpnToDpnList != null) {
        jobCoordinator.enqueueJob(FibUtil.getJobKeyForRdPrefix(rd, vrfEntry.getDestPrefix()), () -> {
            WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
            synchronized (vpnInstance.getVpnInstanceName().intern()) {
                for (VpnToDpnList vpnDpn : vpnToDpnList) {
                    if (!localDpnIdList.contains(vpnDpn.getDpnId())) {
                        if (vpnDpn.getDpnState() == VpnToDpnList.DpnState.Active) {
                            try {
                                if (RouteOrigin.BGP.getValue().equals(vrfEntry.getOrigin())) {
                                    bgpRouteVrfEntryHandler.createRemoteFibEntry(vpnDpn.getDpnId(), vpnId, vrfTableKey.getRouteDistinguisher(), vrfEntry, tx, txnObjects);
                                } else {
                                    createRemoteFibEntry(vpnDpn.getDpnId(), vpnInstance.getVpnId(), vrfTableKey.getRouteDistinguisher(), vrfEntry, tx);
                                }
                            } catch (NullPointerException e) {
                                LOG.error("Failed to get create remote fib flows for prefix {} ", vrfEntry.getDestPrefix(), e);
                            }
                        }
                    }
                }
            }
            List<ListenableFuture<Void>> futures = new ArrayList<>();
            futures.add(tx.submit());
            return futures;
        }, MAX_RETRIES);
    }
    Optional<String> optVpnUuid = fibUtil.getVpnNameFromRd(rd);
    if (optVpnUuid.isPresent()) {
        String vpnUuid = optVpnUuid.get();
        InterVpnLinkDataComposite interVpnLink = interVpnLinkCache.getInterVpnLinkByVpnId(vpnUuid).orNull();
        if (interVpnLink != null) {
            LOG.debug("InterVpnLink {} found in Cache linking Vpn {}", interVpnLink.getInterVpnLinkName(), vpnUuid);
            FibUtil.getFirstNextHopAddress(vrfEntry).ifPresent(routeNexthop -> {
                if (interVpnLink.isIpAddrTheOtherVpnEndpoint(routeNexthop, vpnUuid)) {
                    // This is an static route that points to the other endpoint of an InterVpnLink
                    // In that case, we should add another entry in FIB table pointing to LPortDispatcher table.
                    installIVpnLinkSwitchingFlows(interVpnLink, vpnUuid, vrfEntry, vpnId);
                    installInterVpnRouteInLFib(interVpnLink, vpnUuid, vrfEntry);
                }
            });
        }
    }
}

Example 2 with InterVpnLink

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.links.InterVpnLink in project netvirt by opendaylight.

the class VrfEntryListener method deleteFibEntries.

private void deleteFibEntries(final InstanceIdentifier<VrfEntry> identifier, final VrfEntry vrfEntry) {
    final VrfTablesKey vrfTableKey = identifier.firstKeyOf(VrfTables.class);
    final String rd = vrfTableKey.getRouteDistinguisher();
    final VpnInstanceOpDataEntry vpnInstance = fibUtil.getVpnInstance(vrfTableKey.getRouteDistinguisher());
    if (vpnInstance == null) {
        LOG.error("VPN Instance for rd {} is not available from VPN Op Instance Datastore", rd);
        return;
    }
    final Collection<VpnToDpnList> vpnToDpnList;
    if (vrfEntry.getParentVpnRd() != null && FibHelper.isControllerManagedNonSelfImportedRoute(RouteOrigin.value(vrfEntry.getOrigin()))) {
        // This block MUST BE HIT only for PNF (Physical Network Function) FIB Entries.
        VpnInstanceOpDataEntry parentVpnInstance = fibUtil.getVpnInstance(vrfEntry.getParentVpnRd());
        vpnToDpnList = parentVpnInstance != null ? parentVpnInstance.getVpnToDpnList() : vpnInstance.getVpnToDpnList();
        LOG.info("deleteFibEntries: Processing deletion of PNF FIB entry with rd {} prefix {}", vrfEntry.getParentVpnRd(), vrfEntry.getDestPrefix());
    } else {
        vpnToDpnList = vpnInstance.getVpnToDpnList();
    }
    SubnetRoute subnetRoute = vrfEntry.getAugmentation(SubnetRoute.class);
    final java.util.Optional<Long> optionalLabel = FibUtil.getLabelFromRoutePaths(vrfEntry);
    List<String> nextHopAddressList = FibHelper.getNextHopListFromRoutePaths(vrfEntry);
    String vpnName = fibUtil.getVpnNameFromId(vpnInstance.getVpnId());
    if (subnetRoute != null) {
        long elanTag = subnetRoute.getElantag();
        LOG.trace("SUBNETROUTE: deleteFibEntries: SubnetRoute augmented vrfentry found for rd {} prefix {}" + " with elantag {}", rd, vrfEntry.getDestPrefix(), elanTag);
        if (vpnToDpnList != null) {
            jobCoordinator.enqueueJob(FibUtil.getJobKeyForRdPrefix(rd, vrfEntry.getDestPrefix()), () -> Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
                for (final VpnToDpnList curDpn : vpnToDpnList) {
                    baseVrfEntryHandler.makeConnectedRoute(curDpn.getDpnId(), vpnInstance.getVpnId(), vrfEntry, vrfTableKey.getRouteDistinguisher(), null, NwConstants.DEL_FLOW, tx, null);
                    if (RouteOrigin.value(vrfEntry.getOrigin()) != RouteOrigin.SELF_IMPORTED) {
                        optionalLabel.ifPresent(label -> makeLFibTableEntry(curDpn.getDpnId(), label, null, DEFAULT_FIB_FLOW_PRIORITY, NwConstants.DEL_FLOW, tx));
                    }
                    installSubnetBroadcastAddrDropRule(curDpn.getDpnId(), rd, vpnInstance.getVpnId(), vrfEntry, NwConstants.DEL_FLOW, tx);
                }
            })));
        }
        optionalLabel.ifPresent(label -> {
            synchronized (label.toString().intern()) {
                LabelRouteInfo lri = getLabelRouteInfo(label);
                if (isPrefixAndNextHopPresentInLri(vrfEntry.getDestPrefix(), nextHopAddressList, lri)) {
                    Optional<VpnInstanceOpDataEntry> vpnInstanceOpDataEntryOptional = fibUtil.getVpnInstanceOpData(rd);
                    String vpnInstanceName = "";
                    if (vpnInstanceOpDataEntryOptional.isPresent()) {
                        vpnInstanceName = vpnInstanceOpDataEntryOptional.get().getVpnInstanceName();
                    }
                    boolean lriRemoved = this.deleteLabelRouteInfo(lri, vpnInstanceName, null);
                    if (lriRemoved) {
                        String parentRd = lri.getParentVpnRd();
                        fibUtil.releaseId(FibConstants.VPN_IDPOOL_NAME, FibUtil.getNextHopLabelKey(parentRd, vrfEntry.getDestPrefix()));
                        LOG.trace("SUBNETROUTE: deleteFibEntries: Released subnetroute label {} for rd {} prefix {}" + " as labelRouteInfo cleared", label, rd, vrfEntry.getDestPrefix());
                    }
                } else {
                    fibUtil.releaseId(FibConstants.VPN_IDPOOL_NAME, FibUtil.getNextHopLabelKey(rd, vrfEntry.getDestPrefix()));
                    LOG.trace("SUBNETROUTE: deleteFibEntries: Released subnetroute label {} for rd {} prefix {}", label, rd, vrfEntry.getDestPrefix());
                }
            }
        });
        return;
    }
    final List<BigInteger> localDpnIdList = deleteLocalFibEntry(vpnInstance.getVpnId(), vrfTableKey.getRouteDistinguisher(), vrfEntry);
    if (vpnToDpnList != null) {
        List<String> usedRds = VpnExtraRouteHelper.getUsedRds(dataBroker, vpnInstance.getVpnId(), vrfEntry.getDestPrefix());
        String jobKey;
        Optional<Routes> extraRouteOptional;
        // Is this fib route an extra route? If yes, get the nexthop which would be an adjacency in the vpn
        if (usedRds != null && !usedRds.isEmpty()) {
            jobKey = FibUtil.getJobKeyForRdPrefix(usedRds.get(0), vrfEntry.getDestPrefix());
            if (usedRds.size() > 1) {
                LOG.error("The extra route prefix is still present in some DPNs");
                return;
            } else {
                // The first rd is retrieved from usedrds as Only 1 rd would be present as extra route prefix
                // is not present in any other DPN
                extraRouteOptional = VpnExtraRouteHelper.getVpnExtraroutes(dataBroker, vpnName, usedRds.get(0), vrfEntry.getDestPrefix());
            }
        } else {
            jobKey = FibUtil.getJobKeyForRdPrefix(rd, vrfEntry.getDestPrefix());
            extraRouteOptional = Optional.absent();
        }
        jobCoordinator.enqueueJob(jobKey, () -> {
            WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
            if (localDpnIdList.size() <= 0) {
                for (VpnToDpnList curDpn : vpnToDpnList) {
                    baseVrfEntryHandler.deleteRemoteRoute(BigInteger.ZERO, curDpn.getDpnId(), vpnInstance.getVpnId(), vrfTableKey, vrfEntry, extraRouteOptional, tx);
                }
            } else {
                for (BigInteger localDpnId : localDpnIdList) {
                    for (VpnToDpnList curDpn : vpnToDpnList) {
                        if (!curDpn.getDpnId().equals(localDpnId)) {
                            baseVrfEntryHandler.deleteRemoteRoute(localDpnId, curDpn.getDpnId(), vpnInstance.getVpnId(), vrfTableKey, vrfEntry, extraRouteOptional, tx);
                        }
                    }
                }
            }
            List<ListenableFuture<Void>> futures = new ArrayList<>();
            futures.add(tx.submit());
            return futures;
        }, MAX_RETRIES);
    }
    // The flow/group entry has been deleted from config DS; need to clean up associated operational
    // DS entries in VPN Op DS, VpnInstanceOpData and PrefixToInterface to complete deletion
    cleanUpOpDataForFib(vpnInstance.getVpnId(), vrfTableKey.getRouteDistinguisher(), vrfEntry);
    // Remove all fib entries configured due to interVpnLink, when nexthop is the opposite endPoint
    // of the interVpnLink.
    Optional<String> optVpnUuid = fibUtil.getVpnNameFromRd(rd);
    if (optVpnUuid.isPresent()) {
        String vpnUuid = optVpnUuid.get();
        FibUtil.getFirstNextHopAddress(vrfEntry).ifPresent(routeNexthop -> {
            Optional<InterVpnLinkDataComposite> optInterVpnLink = interVpnLinkCache.getInterVpnLinkByVpnId(vpnUuid);
            if (optInterVpnLink.isPresent()) {
                InterVpnLinkDataComposite interVpnLink = optInterVpnLink.get();
                if (interVpnLink.isIpAddrTheOtherVpnEndpoint(routeNexthop, vpnUuid)) {
                    // This is route that points to the other endpoint of an InterVpnLink
                    // In that case, we should look for the FIB table pointing to
                    // LPortDispatcher table and remove it.
                    removeInterVPNLinkRouteFlows(interVpnLink, vpnUuid, vrfEntry);
                }
            }
        });
    }
}

Example 3 with InterVpnLink

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.links.InterVpnLink in project netvirt by opendaylight.

the class VrfEntryListener method removeInterVPNLinkRouteFlows.

public void removeInterVPNLinkRouteFlows(final InterVpnLinkDataComposite interVpnLink, final String vpnName, final VrfEntry vrfEntry) {
    Preconditions.checkArgument(vrfEntry.getRoutePaths() != null && vrfEntry.getRoutePaths().size() == 1);
    String interVpnLinkName = interVpnLink.getInterVpnLinkName();
    List<BigInteger> targetDpns = interVpnLink.getEndpointDpnsByVpnName(vpnName);
    if (targetDpns.isEmpty()) {
        LOG.warn("Could not find DPNs for VPN {} in InterVpnLink {}", vpnName, interVpnLinkName);
        return;
    }
    java.util.Optional<String> optNextHop = FibUtil.getFirstNextHopAddress(vrfEntry);
    java.util.Optional<Long> optLabel = FibUtil.getLabelFromRoutePaths(vrfEntry);
    // delete from FIB
    // 
    optNextHop.ifPresent(nextHop -> {
        String flowRef = getInterVpnFibFlowRef(interVpnLinkName, vrfEntry.getDestPrefix(), nextHop);
        FlowKey flowKey = new FlowKey(new FlowId(flowRef));
        Flow flow = new FlowBuilder().setKey(flowKey).setId(new FlowId(flowRef)).setTableId(NwConstants.L3_FIB_TABLE).setFlowName(flowRef).build();
        LOG.trace("Removing flow in FIB table for interVpnLink {} key {}", interVpnLinkName, flowRef);
        for (BigInteger dpId : targetDpns) {
            LOG.debug("Removing flow: VrfEntry=[prefix={} nexthop={}] dpn {} for InterVpnLink {} in FIB", vrfEntry.getDestPrefix(), nextHop, dpId, interVpnLinkName);
            mdsalManager.removeFlow(dpId, flow);
        }
    });
    // delete from LFIB
    // 
    optLabel.ifPresent(label -> {
        LOG.trace("Removing flow in FIB table for interVpnLink {}", interVpnLinkName);
        WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
        for (BigInteger dpId : targetDpns) {
            LOG.debug("Removing flow: VrfEntry=[prefix={} label={}] dpn {} for InterVpnLink {} in LFIB", vrfEntry.getDestPrefix(), label, dpId, interVpnLinkName);
            makeLFibTableEntry(dpId, label, /*instructions*/
            null, LFIB_INTERVPN_PRIORITY, NwConstants.DEL_FLOW, tx);
        }
        tx.submit();
    });
}

Example 4 with InterVpnLink

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.links.InterVpnLink in project netvirt by opendaylight.

the class IVpnLinkServiceImpl method leakExtraRoutesToVpnEndpoint.

/*
     * Checks if there are static routes in Vpn1 whose nexthop is Vpn2's endpoint.
     * Those routes must be leaked to Vpn1.
     *
     * @param vpnLink
     * @param vpn1Uuid
     * @param vpn2Uuid
     */
private void leakExtraRoutesToVpnEndpoint(InterVpnLinkDataComposite vpnLink, String vpn1Uuid, String vpn2Uuid) {
    String vpn1Rd = VpnUtil.getVpnRd(dataBroker, vpn1Uuid);
    String vpn2Endpoint = vpnLink.getOtherEndpointIpAddr(vpn2Uuid);
    List<VrfEntry> allVpnVrfEntries = VpnUtil.getAllVrfEntries(dataBroker, vpn1Rd);
    for (VrfEntry vrfEntry : allVpnVrfEntries) {
        vrfEntry.getRoutePaths().stream().filter(routePath -> routePath.getNexthopAddress().equals(vpn2Endpoint)).forEach(routePath -> {
            // Vpn1 has a route pointing to Vpn2's endpoint. Forcing the leaking of the route will update
            // the BGP accordingly
            long label = VpnUtil.getUniqueId(idManager, VpnConstants.VPN_IDPOOL_NAME, VpnUtil.getNextHopLabelKey(vpn1Rd, vrfEntry.getDestPrefix()));
            if (label == VpnConstants.INVALID_LABEL) {
                LOG.error("Unable to fetch label from Id Manager. Bailing out of leaking extra routes for " + "InterVpnLink {} rd {} prefix {}", vpnLink.getInterVpnLinkName(), vpn1Rd, vrfEntry.getDestPrefix());
            } else {
                leakRoute(vpnLink, vpn2Uuid, vpn1Uuid, vrfEntry.getDestPrefix(), label, RouteOrigin.value(vrfEntry.getOrigin()));
            }
        });
    }
}

Example 5 with InterVpnLink

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.netvirt.inter.vpn.link.rev160311.inter.vpn.links.InterVpnLink in project netvirt by opendaylight.

the class IVpnLinkServiceImpl method handleStaticRoute.

/*
     * Takes care of an static route to see if flows related to interVpnLink
     * must be installed in tables 20 and 17
     *
     * @param vpnId Vpn to which the route belongs
     * @param route Route to handle. Will only be considered if its nexthop is the VPN's endpoint IpAddress
     *              at the other side of the InterVpnLink
     * @param iVpnLink
     */
@SuppressWarnings("checkstyle:IllegalCatch")
private void handleStaticRoute(String vpnId, Routes route, InterVpnLinkDataComposite ivpnLink) {
    IpAddress nhIpAddr = route.getNexthop();
    String routeNextHop = nhIpAddr.getIpv4Address() != null ? nhIpAddr.getIpv4Address().getValue() : nhIpAddr.getIpv6Address().getValue();
    String destination = String.valueOf(route.getDestination().getValue());
    // is nexthop the other endpoint's IP
    String otherEndpoint = ivpnLink.getOtherEndpoint(vpnId);
    if (!routeNextHop.equals(otherEndpoint)) {
        LOG.debug("VPN {}: Route to {} nexthop={} points to an InterVpnLink endpoint, but its not " + "the other endpoint. Other endpoint is {}", vpnId, destination, routeNextHop, otherEndpoint);
        return;
    }
    // Lets work: 1) write Fibentry, 2) advertise to BGP and 3) check if it must be leaked
    String vpnRd = VpnUtil.getVpnRd(dataBroker, vpnId);
    if (vpnRd == null) {
        LOG.warn("Could not find Route-Distinguisher for VpnName {}", vpnId);
        return;
    }
    int label = VpnUtil.getUniqueId(idManager, VpnConstants.VPN_IDPOOL_NAME, VpnUtil.getNextHopLabelKey(vpnId, destination));
    try {
        InterVpnLinkUtil.handleStaticRoute(ivpnLink, vpnId, destination, routeNextHop, label, dataBroker, fibManager, bgpManager);
    } catch (Exception e) {
        LOG.error("Exception while advertising prefix for intervpn link, {}", e);
    }
}