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 16 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 handleStaticRoutes.

@Override
public void handleStaticRoutes(InterVpnLinkDataComposite ivpnLink) {
    /*
         * Checks if there are any static routes pointing to any of both
         * InterVpnLink's endpoints. Goes through all routers checking if they have
         * a route whose nexthop is an InterVpnLink endpoint
         */
    // Map that corresponds a routerId with the L3VPN that it's been assigned to.
    Map<String, String> routerXL3VpnMap = buildRouterXL3VPNMap();
    // Retrieving all Routers
    InstanceIdentifier<Routers> routersIid = InstanceIdentifier.builder(Neutron.class).child(Routers.class).build();
    Optional<Routers> routerOpData = MDSALUtil.read(dataBroker, LogicalDatastoreType.CONFIGURATION, routersIid);
    if (!routerOpData.isPresent()) {
        return;
    }
    List<Router> routers = routerOpData.get().getRouter();
    for (Router router : routers) {
        String vpnId = routerXL3VpnMap.get(router.getUuid().getValue());
        if (vpnId == null) {
            LOG.warn("Could not find suitable VPN for router {}", router.getUuid());
            // with next router
            continue;
        }
        List<Routes> routerRoutes = router.getRoutes();
        if (routerRoutes != null) {
            for (Routes route : routerRoutes) {
                handleStaticRoute(vpnId, route, ivpnLink);
            }
        }
    }
}

Example 17 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 leakRoutes.

private void leakRoutes(InterVpnLinkDataComposite vpnLink, String srcVpnUuid, String dstVpnUuid, List<RouteOrigin> originsToConsider) {
    String srcVpnRd = VpnUtil.getVpnRd(dataBroker, srcVpnUuid);
    String dstVpnRd = VpnUtil.getVpnRd(dataBroker, dstVpnUuid);
    List<VrfEntry> srcVpnRemoteVrfEntries = VpnUtil.getVrfEntriesByOrigin(dataBroker, srcVpnRd, originsToConsider);
    for (VrfEntry vrfEntry : srcVpnRemoteVrfEntries) {
        long label = VpnUtil.getUniqueId(idManager, VpnConstants.VPN_IDPOOL_NAME, VpnUtil.getNextHopLabelKey(dstVpnRd, vrfEntry.getDestPrefix()));
        if (label == VpnConstants.INVALID_LABEL) {
            LOG.error("Unable to fetch label from Id Manager. Bailing out of leaking routes for InterVpnLink {} " + "rd {} prefix {}", vpnLink.getInterVpnLinkName(), dstVpnRd, vrfEntry.getDestPrefix());
            continue;
        }
        leakRoute(vpnLink, srcVpnUuid, dstVpnUuid, vrfEntry.getDestPrefix(), label, null);
    }
}

Example 18 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 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 19 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 InterVpnLinkListener method remove.

@Override
protected void remove(InstanceIdentifier<InterVpnLink> identifier, InterVpnLink del) {
    LOG.debug("Reacting to InterVpnLink {} removal", del.getName());
    // Remove learnt routes
    // Remove entries in the LPortDispatcher table
    // Remove the corresponding entries in InterVpnLinkState
    // For each endpoint, remove all routes that have been learnt by intervpnLink
    String vpn1Uuid = del.getFirstEndpoint().getVpnUuid().getValue();
    String rd1 = VpnUtil.getVpnRd(dataBroker, vpn1Uuid);
    LOG.debug("Removing leaked routes in VPN {}  rd={}", vpn1Uuid, rd1);
    VpnUtil.removeVrfEntriesByOrigin(dataBroker, rd1, RouteOrigin.INTERVPN);
    List<VrfEntry> vrfEntriesSecondEndpoint = VpnUtil.findVrfEntriesByNexthop(dataBroker, rd1, del.getSecondEndpoint().getIpAddress().getValue());
    String vpn2Uuid = del.getSecondEndpoint().getVpnUuid().getValue();
    String rd2 = VpnUtil.getVpnRd(dataBroker, vpn2Uuid);
    LOG.debug("Removing leaked routes in VPN {}  rd={}", vpn2Uuid, rd2);
    VpnUtil.removeVrfEntriesByOrigin(dataBroker, rd2, RouteOrigin.INTERVPN);
    List<VrfEntry> vrfEntriesFirstEndpoint = VpnUtil.findVrfEntriesByNexthop(dataBroker, rd2, del.getFirstEndpoint().getIpAddress().getValue());
    Optional<InterVpnLinkState> optIVpnLinkState = InterVpnLinkUtil.getInterVpnLinkState(dataBroker, del.getName());
    if (optIVpnLinkState.isPresent()) {
        InterVpnLinkState interVpnLinkState = optIVpnLinkState.get();
        boolean isVpnFirstEndPoint = true;
        if (interVpnLinkState.getFirstEndpointState() != null) {
            Long firstEndpointLportTag = interVpnLinkState.getFirstEndpointState().getLportTag();
            removeVpnLinkEndpointFlows(del, vpn2Uuid, rd1, interVpnLinkState.getSecondEndpointState().getDpId(), firstEndpointLportTag.intValue(), del.getFirstEndpoint().getIpAddress().getValue(), vrfEntriesSecondEndpoint, isVpnFirstEndPoint);
        } else {
            LOG.info("Could not get first endpoint state attributes for InterVpnLink {}", del.getName());
        }
        isVpnFirstEndPoint = false;
        if (interVpnLinkState.getSecondEndpointState() != null) {
            Long secondEndpointLportTag = interVpnLinkState.getSecondEndpointState().getLportTag();
            removeVpnLinkEndpointFlows(del, vpn1Uuid, rd2, interVpnLinkState.getFirstEndpointState().getDpId(), secondEndpointLportTag.intValue(), del.getSecondEndpoint().getIpAddress().getValue(), vrfEntriesFirstEndpoint, isVpnFirstEndPoint);
        } else {
            LOG.info("Could not get second endpoint state attributes for InterVpnLink {}", del.getName());
        }
    }
    VpnUtil.removeVrfEntries(dataBroker, rd1, vrfEntriesSecondEndpoint);
    VpnUtil.removeVrfEntries(dataBroker, rd2, vrfEntriesFirstEndpoint);
    VpnUtil.withdrawRoutes(bgpManager, rd1, vrfEntriesSecondEndpoint);
    VpnUtil.withdrawRoutes(bgpManager, rd2, vrfEntriesFirstEndpoint);
    // Release idManager with LPortTag associated to endpoints
    LOG.debug("Releasing InterVpnLink {} endpoints LportTags", del.getName());
    InterVpnLinkKey key = del.getKey();
    Uuid firstEndpointVpnUuid = del.getFirstEndpoint().getVpnUuid();
    Uuid secondEndpointVpnUuid = del.getSecondEndpoint().getVpnUuid();
    releaseVpnLinkLPortTag(key.getName() + firstEndpointVpnUuid.getValue());
    releaseVpnLinkLPortTag(key.getName() + secondEndpointVpnUuid.getValue());
    // Routes with nextHop pointing to an end-point of the inter-vpn-link are populated into FIB table.
    // The action in that case is a nx_resubmit to LPortDispatcher table. This is done in FibManager.
    // At this point. we need to check if is there any entry in FIB table pointing to LPortDispatcher table.
    // Remove it in that case.
    // Removing the InterVpnLinkState
    InstanceIdentifier<InterVpnLinkState> interVpnLinkStateIid = InterVpnLinkUtil.getInterVpnLinkStateIid(del.getName());
    VpnUtil.delete(dataBroker, LogicalDatastoreType.CONFIGURATION, interVpnLinkStateIid);
}

Example 20 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 InterVpnLinkListener method removeVpnLinkEndpointFlows.

// We're catching Exception here to continue deleting as much as possible
// TODO Rework this so it's done in one transaction
@SuppressWarnings("checkstyle:IllegalCatch")
private void removeVpnLinkEndpointFlows(InterVpnLink del, String vpnUuid, String rd, List<BigInteger> dpns, int otherEndpointLportTag, String otherEndpointIpAddr, List<VrfEntry> vrfEntries, final boolean isVpnFirstEndPoint) {
    String interVpnLinkName = del.getName();
    LOG.debug("Removing endpoint flows for vpn {}.  InterVpnLink={}.  OtherEndpointLportTag={}", vpnUuid, interVpnLinkName, otherEndpointLportTag);
    if (dpns == null) {
        LOG.debug("VPN {} endpoint is not instantiated in any DPN for InterVpnLink {}", vpnUuid, interVpnLinkName);
        return;
    }
    for (BigInteger dpnId : dpns) {
        try {
            // Removing flow from LportDispatcher table
            String flowRef = InterVpnLinkUtil.getLportDispatcherFlowRef(interVpnLinkName, otherEndpointLportTag);
            FlowKey flowKey = new FlowKey(new FlowId(flowRef));
            Flow flow = new FlowBuilder().setKey(flowKey).setId(new FlowId(flowRef)).setTableId(NwConstants.LPORT_DISPATCHER_TABLE).setFlowName(flowRef).build();
            mdsalManager.removeFlow(dpnId, flow);
            // Also remove the 'fake' iface from the VpnToDpn map
            InterVpnLinkUtil.removeIVpnLinkIfaceFromVpnFootprint(vpnFootprintService, vpnUuid, rd, dpnId);
        } catch (Exception e) {
            // Whatever happens it should not stop it from trying to remove as much as possible
            LOG.warn("Error while removing InterVpnLink {} Endpoint flows on dpn {}. Reason: ", interVpnLinkName, dpnId, e);
        }
    }
    // Removing flow from FIB and LFIB tables
    LOG.trace("Removing flow in FIB and LFIB tables for vpn {} interVpnLink {} otherEndpointIpAddr {}", vpnUuid, interVpnLinkName, otherEndpointIpAddr);
    cleanUpInterVPNRoutes(interVpnLinkName, vrfEntries, isVpnFirstEndPoint);
}