Examples with Subnet org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet used on opensource projects

Example 41 with Subnet

use of org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet in project netvirt by opendaylight.

the class DhcpNeutronPortListener method update.

@Override
protected void update(InstanceIdentifier<Port> identifier, Port original, Port update) {
    LOG.trace("Port changed to {}", update);
    // With Ipv6 changes we can get ipv4 subnets later. The below check is to support such scenario.
    if (original.getFixedIps().size() < update.getFixedIps().size()) {
        final String interfaceName = update.getUuid().getValue();
        List<FixedIps> updatedFixedIps = update.getFixedIps();
        // Need to check only the newly added fixed ip.
        updatedFixedIps.removeAll(original.getFixedIps());
        Subnet subnet = dhcpManager.getNeutronSubnet(updatedFixedIps);
        if (null == subnet || !subnet.isEnableDhcp()) {
            LOG.trace("Subnet is null/not ipv4 or not enabled {}", subnet);
            return;
        }
        // Binding the DHCP service for an existing port because of subnet change.
        jobCoordinator.enqueueJob(DhcpServiceUtils.getJobKey(interfaceName), () -> Collections.singletonList(txRunner.callWithNewWriteOnlyTransactionAndSubmit(tx -> {
            LOG.debug("Binding DHCP service for interface {}", interfaceName);
            DhcpServiceUtils.bindDhcpService(interfaceName, NwConstants.DHCP_TABLE, tx);
        })), DhcpMConstants.RETRY_COUNT);
        jobCoordinator.enqueueJob(DhcpServiceUtils.getJobKey(interfaceName), () -> {
            BigInteger dpnId = interfaceManager.getDpnForInterface(interfaceName);
            if (dpnId == null || dpnId.equals(DhcpMConstants.INVALID_DPID)) {
                LOG.trace("Unable to install the DHCP flow since dpn is not available");
                return Collections.emptyList();
            }
            return Collections.singletonList(txRunner.callWithNewReadWriteTransactionAndSubmit(tx -> dhcpManager.installDhcpEntries(dpnId, DhcpServiceUtils.getAndUpdateVmMacAddress(tx, interfaceName, dhcpManager), tx)));
        }, DhcpMConstants.RETRY_COUNT);
    }
    if (!isVnicTypeDirectOrMacVtap(update)) {
        LOG.trace("Port updated is normal {}", update.getUuid());
        if (isVnicTypeDirectOrMacVtap(original)) {
            LOG.trace("Original Port was direct/macvtap {} so removing flows and cache entry if any", update.getUuid());
            removePort(original);
        }
        return;
    }
    if (!isVnicTypeDirectOrMacVtap(original)) {
        LOG.trace("Original port was normal and updated is direct. Calling addPort()");
        addPort(update);
        return;
    }
    String macOriginal = getMacAddress(original);
    String macUpdated = getMacAddress(update);
    String segmentationIdOriginal = DhcpServiceUtils.getSegmentationId(original.getNetworkId(), broker);
    String segmentationIdUpdated = DhcpServiceUtils.getSegmentationId(update.getNetworkId(), broker);
    if (macOriginal != null && !macOriginal.equalsIgnoreCase(macUpdated) && segmentationIdOriginal != null && !segmentationIdOriginal.equalsIgnoreCase(segmentationIdUpdated)) {
        LOG.trace("Mac/segment id has changed");
        dhcpExternalTunnelManager.removeVniMacToPortCache(new BigInteger(segmentationIdOriginal), macOriginal);
        dhcpExternalTunnelManager.updateVniMacToPortCache(new BigInteger(segmentationIdUpdated), macUpdated, update);
    }
}

Example 42 with Subnet

use of org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet in project netvirt by opendaylight.

the class DhcpPktHandler method getDhcpInfo.

private DhcpInfo getDhcpInfo(Port port, Subnet subnet, String serverIp) {
    DhcpInfo dhcpInfo = null;
    if (port != null && subnet != null) {
        String clientIp = getIpv4Address(port);
        List<IpAddress> dnsServers = subnet.getDnsNameservers();
        dhcpInfo = new DhcpInfo();
        if (isIpv4Address(subnet.getGatewayIp())) {
            dhcpInfo.setGatewayIp(subnet.getGatewayIp().getIpv4Address().getValue());
        }
        if (clientIp != null && serverIp != null) {
            List<HostRoutes> subnetHostRoutes = new ArrayList<>(subnet.getHostRoutes().size());
            for (HostRoutes hostRoute : subnet.getHostRoutes()) {
                if (!String.valueOf(hostRoute.getNexthop().getValue()).equals(clientIp)) {
                    subnetHostRoutes.add(hostRoute);
                }
            }
            dhcpInfo.setClientIp(clientIp).setServerIp(serverIp).setCidr(String.valueOf(subnet.getCidr().getValue())).setHostRoutes(subnetHostRoutes).setDnsServersIpAddrs(dnsServers);
        }
    }
    return dhcpInfo;
}

Example 43 with Subnet

use of org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet in project netvirt by opendaylight.

the class DhcpPktHandler method onPacketReceived.

// TODO: Handle this in a separate thread
@Override
public void onPacketReceived(PacketReceived packet) {
    if (!config.isControllerDhcpEnabled()) {
        return;
    }
    Class<? extends PacketInReason> pktInReason = packet.getPacketInReason();
    short tableId = packet.getTableId().getValue();
    if ((tableId == NwConstants.DHCP_TABLE || tableId == NwConstants.DHCP_TABLE_EXTERNAL_TUNNEL) && isPktInReasonSendtoCtrl(pktInReason)) {
        byte[] inPayload = packet.getPayload();
        Ethernet ethPkt = new Ethernet();
        try {
            ethPkt.deserialize(inPayload, 0, inPayload.length * NetUtils.NUM_BITS_IN_A_BYTE);
        } catch (PacketException e) {
            LOG.warn("Failed to decode DHCP Packet.", e);
            LOG.trace("Received packet {}", packet);
            return;
        }
        DHCP pktIn;
        pktIn = getDhcpPktIn(ethPkt);
        if (pktIn != null) {
            LOG.trace("DHCPPkt received: {}", pktIn);
            LOG.trace("Received Packet: {}", packet);
            BigInteger metadata = packet.getMatch().getMetadata().getMetadata();
            long portTag = MetaDataUtil.getLportFromMetadata(metadata).intValue();
            String macAddress = DHCPUtils.byteArrayToString(ethPkt.getSourceMACAddress());
            BigInteger tunnelId = packet.getMatch().getTunnel() == null ? null : packet.getMatch().getTunnel().getTunnelId();
            String interfaceName = getInterfaceNameFromTag(portTag);
            InterfaceInfo interfaceInfo = interfaceManager.getInterfaceInfoFromOperationalDataStore(interfaceName);
            if (interfaceInfo == null) {
                LOG.error("Failed to get interface info for interface name {}", interfaceName);
                return;
            }
            Port port;
            if (tunnelId != null) {
                port = dhcpExternalTunnelManager.readVniMacToPortCache(tunnelId, macAddress);
            } else {
                port = getNeutronPort(interfaceName);
            }
            Subnet subnet = getNeutronSubnet(port);
            String serverMacAddress = interfaceInfo.getMacAddress();
            String serverIp = null;
            if (subnet != null) {
                java.util.Optional<SubnetToDhcpPort> dhcpPortData = DhcpServiceUtils.getSubnetDhcpPortData(broker, subnet.getUuid().getValue());
                /* If enable_dhcp_service flag was enabled and an ODL network DHCP Port data was made available use
                     * the ports Fixed IP as server IP for DHCP communication.
                     */
                if (dhcpPortData.isPresent()) {
                    serverIp = dhcpPortData.get().getPortFixedip();
                    serverMacAddress = dhcpPortData.get().getPortMacaddress();
                } else {
                    // DHCP Neutron Port not found for this network
                    LOG.error("Neutron DHCP port is not available for the Subnet {} and port {}.", subnet.getUuid(), port.getUuid());
                    return;
                }
            }
            DHCP replyPkt = handleDhcpPacket(pktIn, interfaceName, macAddress, port, subnet, serverIp);
            if (replyPkt == null) {
                LOG.warn("Unable to construct reply packet for interface name {}", interfaceName);
                return;
            }
            byte[] pktOut = getDhcpPacketOut(replyPkt, ethPkt, serverMacAddress);
            sendPacketOut(pktOut, interfaceInfo.getDpId(), interfaceName, tunnelId);
        }
    }
}

Example 44 with Subnet

use of org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet in project netvirt by opendaylight.

the class DhcpServiceUtils method createSubnetDhcpPortData.

@SuppressWarnings("checkstyle:IllegalCatch")
protected static void createSubnetDhcpPortData(Port port, BiConsumer<InstanceIdentifier<SubnetToDhcpPort>, SubnetToDhcpPort> consumer) {
    java.util.Optional<String> ip4Address = getIpV4Address(port);
    java.util.Optional<String> subnetId = getNeutronSubnetId(port);
    if (!(ip4Address.isPresent() && subnetId.isPresent())) {
        return;
    }
    LOG.trace("Adding SubnetPortData entry for subnet {}", subnetId.get());
    InstanceIdentifier<SubnetToDhcpPort> identifier = buildSubnetToDhcpPort(subnetId.get());
    SubnetToDhcpPort subnetToDhcpPort = getSubnetToDhcpPort(port, subnetId.get(), ip4Address.get());
    try {
        LOG.trace("Adding to SubnetToDhcpPort subnet {}  mac {}.", subnetId.get(), port.getMacAddress().getValue());
        consumer.accept(identifier, subnetToDhcpPort);
    } catch (Exception e) {
        LOG.error("Failure while creating SubnetToDhcpPort map for network {}.", port.getNetworkId(), e);
    }
}

Example 45 with Subnet

use of org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.subnets.rev150712.subnets.attributes.subnets.Subnet in project netvirt by opendaylight.

the class DhcpServiceUtils method isIpv4Subnet.

public static boolean isIpv4Subnet(DataBroker broker, Uuid subnetUuid) {
    final SubnetKey subnetkey = new SubnetKey(subnetUuid);
    final InstanceIdentifier<Subnet> subnetidentifier = InstanceIdentifier.create(Neutron.class).child(Subnets.class).child(Subnet.class, subnetkey);
    final Optional<Subnet> subnet = MDSALUtil.read(broker, LogicalDatastoreType.CONFIGURATION, subnetidentifier);
    if (subnet.isPresent()) {
        Class<? extends IpVersionBase> ipVersionBase = subnet.get().getIpVersion();
        if (ipVersionBase.equals(IpVersionV4.class)) {
            return true;
        }
    }
    return false;
}