Examples with Adjacency org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.adjacency.list.Adjacency used on opensource projects

Example 31 with Adjacency

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.adjacency.list.Adjacency in project netvirt by opendaylight.

the class VpnInterfaceManager method removeGwMacAndArpResponderFlows.

private void removeGwMacAndArpResponderFlows(Adjacency nextHop, Uint32 vpnId, Uint64 dpnId, int lportTag, String gwMac, String gwIp, String interfaceName, TypedReadWriteTransaction<Configuration> writeInvTxn) throws ExecutionException, InterruptedException {
    final Uuid subnetId = nextHop.getSubnetId();
    if (nextHop.getSubnetGatewayMacAddress() == null) {
        // A valid mac-address was not available for this subnet-gateway-ip
        // So a connected-mac-address was used for this subnet and we need
        // to remove the flows for the same here from the L3_GW_MAC_TABLE.
        vpnUtil.setupGwMacIfExternalVpn(dpnId, interfaceName, vpnId, writeInvTxn, NwConstants.DEL_FLOW, gwMac);
    }
    arpResponderHandler.removeArpResponderFlow(dpnId, lportTag, interfaceName, gwIp, subnetId);
}

Example 32 with Adjacency

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.adjacency.list.Adjacency in project netvirt by opendaylight.

the class VpnInterfaceOpListener method postProcessVpnInterfaceRemoval.

private void postProcessVpnInterfaceRemoval(InstanceIdentifier<VpnInterfaceOpDataEntry> identifier, VpnInterfaceOpDataEntry del, @Nullable TypedReadWriteTransaction<Operational> operTx, @Nullable TypedReadTransaction<Configuration> confTx) throws InterruptedException {
    if (confTx == null) {
        txRunner.callWithNewReadOnlyTransactionAndClose(CONFIGURATION, tx -> postProcessVpnInterfaceRemoval(identifier, del, operTx, tx));
        return;
    }
    if (operTx == null) {
        LoggingFutures.addErrorLogging(txRunner.callWithNewReadWriteTransactionAndSubmit(OPERATIONAL, tx -> postProcessVpnInterfaceRemoval(identifier, del, tx, confTx)), LOG, "Error post-processing VPN interface removal");
        return;
    }
    final VpnInterfaceOpDataEntryKey key = identifier.firstKeyOf(VpnInterfaceOpDataEntry.class);
    String interfaceName = key.getName();
    String vpnName = del.getVpnInstanceName();
    try {
        LOG.info("postProcessVpnInterfaceRemoval: interface name {} vpnName {} dpn {}", interfaceName, vpnName, del.getDpnId());
        // decrement the vpn interface count in Vpn Instance Op Data
        Optional<VpnInstance> vpnInstance = confTx.read(VpnOperDsUtils.getVpnInstanceToVpnIdIdentifier(vpnName)).get();
        if (vpnInstance.isPresent()) {
            String rd = vpnInstance.get().getVrfId();
            VpnInstanceOpDataEntry vpnInstOp = vpnUtil.getVpnInstanceOpData(rd);
            AdjacenciesOp adjs = del.augmentation(AdjacenciesOp.class);
            Map<AdjacencyKey, Adjacency> adjMap = adjs != null ? adjs.getAdjacency() : null;
            if (vpnInstOp != null && adjMap != null && adjMap.size() > 0) {
                /*
                 * When a VPN Interface is removed by FibManager (aka VrfEntryListener and its cohorts),
                 * one adjacency or two adjacency (in case of dual-stack)
                 * 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().values()) {
                    List<Prefixes> prefixToInterfaceLocal = new ArrayList<>();
                    Optional<Prefixes> prefix = operTx.read(VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), VpnUtil.getIpPrefix(adjacency.getIpAddress()))).get();
                    if (prefix.isPresent()) {
                        prefixToInterfaceLocal.add(prefix.get());
                    }
                    if (prefixToInterfaceLocal.isEmpty() && adjacency.getNextHopIpList() != null) {
                        for (String nh : adjacency.getNextHopIpList()) {
                            prefix = operTx.read(VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), VpnUtil.getIpPrefix(nh))).get();
                            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 (VpnUtil.isMatchedPrefixToInterface(pref, del)) {
                        operTx.delete(VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), pref.getIpAddress()));
                    }
                }
            }
            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);
    } catch (InterruptedException | ExecutionException e) {
        LOG.error("postProcessVpnInterfaceRemoval: Failed to read data store for interface {} vpn {}", interfaceName, vpnName);
    }
}

Example 33 with Adjacency

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.adjacency.list.Adjacency in project netvirt by opendaylight.

the class InterfaceStateChangeListener method handleMipAdjRemoval.

private void handleMipAdjRemoval(VpnInterface cfgVpnInterface, String vpnName) {
    String interfaceName = cfgVpnInterface.getName();
    Adjacencies adjacencies = cfgVpnInterface.augmentation(Adjacencies.class);
    if (adjacencies != null) {
        Map<AdjacencyKey, Adjacency> adjacencyMap = adjacencies.nonnullAdjacency();
        if (!adjacencyMap.isEmpty()) {
            for (Adjacency adj : adjacencyMap.values()) {
                if (adj.getAdjacencyType() != Adjacency.AdjacencyType.PrimaryAdjacency) {
                    String ipAddress = adj.getIpAddress();
                    String prefix = ipAddress.split("/")[0];
                    LearntVpnVipToPort vpnVipToPort = vpnUtil.getLearntVpnVipToPort(vpnName, prefix);
                    if (vpnVipToPort != null && vpnVipToPort.getPortName().equals(interfaceName)) {
                        vpnUtil.removeMipAdjacency(vpnName, interfaceName, ipAddress, null);
                    } else {
                        LOG.debug("IP {} could be extra-route or learnt-ip on different interface" + "than oper-vpn-interface {}", ipAddress, interfaceName);
                    }
                }
            }
        }
    }
}

Example 34 with Adjacency

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.adjacency.list.Adjacency in project netvirt by opendaylight.

the class VpnInterfaceManager method removeAdjacencyFromBgpvpn.

private void removeAdjacencyFromBgpvpn(Adjacency nextHop, List<String> nhList, String vpnName, String primaryRd, Uint64 dpnId, String rd, String interfaceName, boolean isNonPrimaryAdjIp, TypedWriteTransaction<Configuration> writeConfigTxn, TypedWriteTransaction<Operational> writeOperTx) {
    List<VpnInstanceOpDataEntry> vpnsToImportRoute = vpnUtil.getVpnsImportingMyRoute(vpnName);
    nhList.forEach(nh -> {
        // IRT: remove routes from other vpns importing it
        if (isNonPrimaryAdjIp) {
            removeLearntPrefixFromBGP(rd, nextHop.getIpAddress(), nh, writeConfigTxn);
        } else {
            vpnManager.removePrefixFromBGP(vpnName, primaryRd, rd, interfaceName, nextHop.getIpAddress(), nextHop.getNextHopIpList().get(0), nh, dpnId, writeConfigTxn, writeOperTx);
        }
        for (VpnInstanceOpDataEntry vpn : vpnsToImportRoute) {
            String vpnRd = vpn.getVrfId();
            if (vpnRd != null) {
                fibManager.removeOrUpdateFibEntry(vpnRd, nextHop.getIpAddress(), nh, writeConfigTxn);
                LOG.info("removeAdjacenciesFromVpn: Removed Exported route with rd {}" + " prefix {} nextHop {} from VPN {} parentVpn {}" + " for interface {} on dpn {}", vpnRd, nextHop.getIpAddress(), nh, vpn.getVpnInstanceName(), vpnName, interfaceName, dpnId);
            }
        }
    });
}

Example 35 with Adjacency

use of org.opendaylight.yang.gen.v1.urn.opendaylight.netvirt.neutronvpn.l3vpn.rev200204.adjacency.list.Adjacency in project netvirt by opendaylight.

the class VpnInterfaceManager method processVpnInterfaceUp.

// "Unconditional wait" and "Wait not in loop" wrt the VpnNotifyTask below - suppressing the FB violation -
// see comments below.
@SuppressFBWarnings({ "UW_UNCOND_WAIT", "WA_NOT_IN_LOOP" })
protected void processVpnInterfaceUp(final Uint64 dpId, VpnInterface vpnInterface, final String primaryRd, final int lportTag, boolean isInterfaceUp, TypedWriteTransaction<Configuration> writeConfigTxn, TypedWriteTransaction<Operational> writeOperTxn, TypedReadWriteTransaction<Configuration> writeInvTxn, Interface interfaceState, final String vpnName, Set<String> prefixListForRefreshFib) throws ExecutionException, InterruptedException {
    final String interfaceName = vpnInterface.getName();
    Optional<VpnInterfaceOpDataEntry> optOpVpnInterface = vpnUtil.getVpnInterfaceOpDataEntry(interfaceName, vpnName);
    VpnInterfaceOpDataEntry opVpnInterface = optOpVpnInterface.isPresent() ? optOpVpnInterface.get() : null;
    boolean isBgpVpnInternetVpn = vpnUtil.isBgpVpnInternet(vpnName);
    if (!isInterfaceUp) {
        LOG.info("processVpnInterfaceUp: Binding vpn service to interface {} onto dpn {} for vpn {}", interfaceName, dpId, vpnName);
        Uint32 vpnId = vpnUtil.getVpnId(vpnName);
        if (VpnConstants.INVALID_ID.equals(vpnId)) {
            LOG.warn("processVpnInterfaceUp: VpnInstance to VPNId mapping not available for VpnName {}" + " processing vpninterface {} on dpn {}, bailing out now.", vpnName, interfaceName, dpId);
            return;
        }
        boolean waitForVpnInterfaceOpRemoval = false;
        if (opVpnInterface != null) {
            String opVpnName = opVpnInterface.getVpnInstanceName();
            String primaryInterfaceIp = null;
            if (Objects.equals(opVpnName, vpnName)) {
                // Please check if the primary VRF Entry does not exist for VPNInterface
                // If so, we have to process ADD, as this might be a DPN Restart with Remove and Add triggered
                // back to back
                // However, if the primary VRF Entry for this VPNInterface exists, please continue bailing out !
                List<Adjacency> adjs = vpnUtil.getAdjacenciesForVpnInterfaceFromConfig(interfaceName);
                if (adjs == null) {
                    LOG.error("processVpnInterfaceUp: VPN Interface {} on dpn {} for vpn {} failed as adjacencies" + " for this vpn interface could not be obtained", interfaceName, dpId, vpnName);
                    return;
                }
                for (Adjacency adj : adjs) {
                    if (adj.getAdjacencyType() == AdjacencyType.PrimaryAdjacency) {
                        primaryInterfaceIp = adj.getIpAddress();
                        break;
                    }
                }
                if (primaryInterfaceIp == null) {
                    LOG.error("processVpnInterfaceUp: VPN Interface {} addition on dpn {} for vpn {} failed" + " as primary adjacency for this vpn interface could not be obtained", interfaceName, dpId, vpnName);
                    return;
                }
                // Get the rd of the vpn instance
                VrfEntry vrf = vpnUtil.getVrfEntry(primaryRd, primaryInterfaceIp);
                if (vrf != null) {
                    LOG.error("processVpnInterfaceUp: VPN Interface {} on dpn {} for vpn {} already provisioned ," + " bailing out from here.", interfaceName, dpId, vpnName);
                    return;
                }
                waitForVpnInterfaceOpRemoval = true;
            } else {
                LOG.error("processVpnInterfaceUp: vpn interface {} to go to configured vpn {} on dpn {}," + " but in operational vpn {}", interfaceName, vpnName, dpId, opVpnName);
            }
        }
        if (!waitForVpnInterfaceOpRemoval) {
            // Add the VPNInterface and quit
            vpnFootprintService.updateVpnToDpnMapping(dpId, vpnName, primaryRd, interfaceName, null, /*ipAddressSourceValuePair*/
            true);
            processVpnInterfaceAdjacencies(dpId, lportTag, vpnName, primaryRd, interfaceName, vpnId, writeConfigTxn, writeOperTxn, writeInvTxn, interfaceState, prefixListForRefreshFib);
            if (!isBgpVpnInternetVpn) {
                vpnUtil.bindService(vpnName, interfaceName, false);
            }
            LOG.info("processVpnInterfaceUp: Plumbed vpn interface {} onto dpn {} for vpn {}", interfaceName, dpId, vpnName);
            if (interfaceManager.isExternalInterface(interfaceName)) {
                processExternalVpnInterface(interfaceName, vpnName, dpId, lportTag, NwConstants.ADD_FLOW);
            }
            return;
        }
        // FIB didn't get a chance yet to clean up this VPNInterface
        // Let us give it a chance here !
        LOG.info("processVpnInterfaceUp: Trying to add VPN Interface {} on dpn {} for vpn {}," + " but waiting for FIB to clean up! ", interfaceName, dpId, vpnName);
        try {
            Runnable notifyTask = new VpnNotifyTask();
            synchronized (notifyTask) {
                // Per FB's "Unconditional wait" violation, the code should really verify that the condition it
                // intends to wait for is not already satisfied before calling wait. However the VpnNotifyTask is
                // published here while holding the lock on it so this path will hit the wait before notify can be
                // invoked.
                vpnIntfMap.put(interfaceName, notifyTask);
                try {
                    notifyTask.wait(VpnConstants.MAX_WAIT_TIME_IN_MILLISECONDS);
                } catch (InterruptedException e) {
                // Ignored
                }
            }
        } finally {
            vpnIntfMap.remove(interfaceName);
        }
        if (opVpnInterface != null) {
            LOG.warn("processVpnInterfaceUp: VPN Interface {} removal on dpn {} for vpn {}" + " by FIB did not complete on time," + " bailing addition ...", interfaceName, dpId, vpnName);
            vpnUtil.unsetScheduledToRemoveForVpnInterface(interfaceName);
            return;
        }
        // VPNInterface got removed, proceed with Add
        LOG.info("processVpnInterfaceUp: Continuing to plumb vpn interface {} onto dpn {} for vpn {}", interfaceName, dpId, vpnName);
        vpnFootprintService.updateVpnToDpnMapping(dpId, vpnName, primaryRd, interfaceName, null, /*ipAddressSourceValuePair*/
        true);
        processVpnInterfaceAdjacencies(dpId, lportTag, vpnName, primaryRd, interfaceName, vpnId, writeConfigTxn, writeOperTxn, writeInvTxn, interfaceState, prefixListForRefreshFib);
        if (!isBgpVpnInternetVpn) {
            vpnUtil.bindService(vpnName, interfaceName, false);
        }
        LOG.info("processVpnInterfaceUp: Plumbed vpn interface {} onto dpn {} for vpn {} after waiting for" + " FIB to clean up", interfaceName, dpId, vpnName);
        if (interfaceManager.isExternalInterface(interfaceName)) {
            processExternalVpnInterface(interfaceName, vpnName, dpId, lportTag, NwConstants.ADD_FLOW);
        }
    } else {
        try {
            // Interface is retained in the DPN, but its Link Up.
            // Advertise prefixes again for this interface to BGP
            InstanceIdentifier<VpnInterface> identifier = VpnUtil.getVpnInterfaceIdentifier(vpnInterface.getName());
            InstanceIdentifier<VpnInterfaceOpDataEntry> vpnInterfaceOpIdentifier = VpnUtil.getVpnInterfaceOpDataEntryIdentifier(interfaceName, vpnName);
            advertiseAdjacenciesForVpnToBgp(primaryRd, dpId, vpnInterfaceOpIdentifier, vpnName, interfaceName);
            // Perform similar operation as interface add event for extraroutes.
            InstanceIdentifier<Adjacencies> path = identifier.augmentation(Adjacencies.class);
            Optional<Adjacencies> optAdjacencies = SingleTransactionDataBroker.syncReadOptional(dataBroker, LogicalDatastoreType.CONFIGURATION, path);
            if (!optAdjacencies.isPresent()) {
                LOG.trace("No config adjacencyKeyAdjacencyMap present for vpninterface {}", vpnInterface);
                return;
            }
            Map<AdjacencyKey, Adjacency> adjacencyKeyAdjacencyMap = optAdjacencies.get().nonnullAdjacency();
            for (Adjacency adjacency : adjacencyKeyAdjacencyMap.values()) {
                if (adjacency.getAdjacencyType() == AdjacencyType.PrimaryAdjacency) {
                    continue;
                }
                // if BGPVPN Internet, filter only IPv6 Adjacencies
                if (isBgpVpnInternetVpn && !vpnUtil.isAdjacencyEligibleToVpnInternet(adjacency)) {
                    continue;
                }
                addNewAdjToVpnInterface(vpnInterfaceOpIdentifier, primaryRd, adjacency, dpId, writeOperTxn, writeConfigTxn, writeInvTxn, prefixListForRefreshFib);
            }
        } catch (InterruptedException | ExecutionException e) {
            LOG.error("processVpnInterfaceUp: Failed to read data store for interface {} vpn {} rd {} dpn {}", interfaceName, vpnName, primaryRd, dpId);
        }
    }
}