diff options
Diffstat (limited to 'v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VxlanCustomizer.java')
| -rw-r--r-- | v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VxlanCustomizer.java | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VxlanCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VxlanCustomizer.java new file mode 100644 index 000000000..450c75709 --- /dev/null +++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/VxlanCustomizer.java @@ -0,0 +1,145 @@ +/* + * Copyright (c) 2016 Cisco and/or its affiliates. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package io.fd.honeycomb.translate.v3po.interfacesstate; + +import static com.google.common.base.Preconditions.checkState; +import static io.fd.honeycomb.translate.v3po.interfacesstate.InterfaceUtils.isInterfaceOfType; + +import io.fd.honeycomb.translate.read.ReadContext; +import io.fd.honeycomb.translate.read.ReadFailedException; +import io.fd.honeycomb.translate.spi.read.ReaderCustomizer; +import io.fd.honeycomb.translate.v3po.util.FutureJVppCustomizer; +import io.fd.honeycomb.translate.v3po.util.NamingContext; +import io.fd.honeycomb.translate.v3po.util.TranslateUtils; +import java.net.InetAddress; +import java.net.UnknownHostException; +import java.util.Arrays; +import java.util.concurrent.CompletionStage; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.InterfaceKey; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VppInterfaceStateAugmentationBuilder; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanTunnel; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanVni; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.Vxlan; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.VxlanBuilder; +import org.opendaylight.yangtools.concepts.Builder; +import org.opendaylight.yangtools.yang.binding.DataObject; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.openvpp.jvpp.VppBaseCallException; +import org.openvpp.jvpp.dto.VxlanTunnelDetails; +import org.openvpp.jvpp.dto.VxlanTunnelDetailsReplyDump; +import org.openvpp.jvpp.dto.VxlanTunnelDump; +import org.openvpp.jvpp.future.FutureJVpp; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class VxlanCustomizer extends FutureJVppCustomizer + implements ReaderCustomizer<Vxlan, VxlanBuilder> { + + private static final Logger LOG = LoggerFactory.getLogger(VxlanCustomizer.class); + private final NamingContext interfaceContext; + + public VxlanCustomizer(@Nonnull final FutureJVpp jvpp, @Nonnull final NamingContext interfaceContext) { + super(jvpp); + this.interfaceContext = interfaceContext; + } + + @Override + public void merge(@Nonnull Builder<? extends DataObject> parentBuilder, + @Nonnull Vxlan readValue) { + ((VppInterfaceStateAugmentationBuilder) parentBuilder).setVxlan(readValue); + } + + @Nonnull + @Override + public VxlanBuilder getBuilder(@Nonnull InstanceIdentifier<Vxlan> id) { + return new VxlanBuilder(); + } + + @Override + public void readCurrentAttributes(@Nonnull final InstanceIdentifier<Vxlan> id, + @Nonnull final VxlanBuilder builder, + @Nonnull final ReadContext ctx) throws ReadFailedException { + try { + final InterfaceKey key = id.firstKeyOf(Interface.class); + final int index = interfaceContext.getIndex(key.getName(), ctx.getMappingContext()); + if (!isInterfaceOfType(getFutureJVpp(), ctx.getModificationCache(), id, index, VxlanTunnel.class)) { + return; + } + + LOG.debug("Reading attributes for vxlan tunnel: {}", key.getName()); + // Dump just a single + final VxlanTunnelDump request = new VxlanTunnelDump(); + request.swIfIndex = index; + + final CompletionStage<VxlanTunnelDetailsReplyDump> swInterfaceVxlanDetailsReplyDumpCompletionStage = + getFutureJVpp().vxlanTunnelDump(request); + final VxlanTunnelDetailsReplyDump reply = + TranslateUtils.getReplyForRead(swInterfaceVxlanDetailsReplyDumpCompletionStage.toCompletableFuture(), id); + + // VPP keeps vxlan tunnel interfaces even after they were deleted (optimization) + // However there ar no longer any vxlan tunnel specific fields assigned to it and this call + // returns nothing + if (reply == null || reply.vxlanTunnelDetails == null || reply.vxlanTunnelDetails.isEmpty()) { + LOG.debug( + "Vxlan tunnel {}, id {} has no attributes assigned in VPP. Probably is a leftover interface placeholder" + + "after delete", key.getName(), index); + return; + } + + checkState(reply.vxlanTunnelDetails.size() == 1, + "Unexpected number of returned vxlan tunnels: {} for tunnel: {}", reply.vxlanTunnelDetails, key.getName()); + LOG.trace("Vxlan tunnel: {} attributes returned from VPP: {}", key.getName(), reply); + + final VxlanTunnelDetails swInterfaceVxlanDetails = reply.vxlanTunnelDetails.get(0); + if (swInterfaceVxlanDetails.isIpv6 == 1) { + final Ipv6Address dstIpv6 = + new Ipv6Address(parseAddress(swInterfaceVxlanDetails.dstAddress).getHostAddress()); + builder.setDst(new IpAddress(dstIpv6)); + final Ipv6Address srcIpv6 = + new Ipv6Address(parseAddress(swInterfaceVxlanDetails.srcAddress).getHostAddress()); + builder.setSrc(new IpAddress(srcIpv6)); + } else { + final byte[] dstBytes = Arrays.copyOfRange(swInterfaceVxlanDetails.dstAddress, 0, 4); + final Ipv4Address dstIpv4 = new Ipv4Address(parseAddress(dstBytes).getHostAddress()); + builder.setDst(new IpAddress(dstIpv4)); + final byte[] srcBytes = Arrays.copyOfRange(swInterfaceVxlanDetails.srcAddress, 0, 4); + final Ipv4Address srcIpv4 = new Ipv4Address(parseAddress(srcBytes).getHostAddress()); + builder.setSrc(new IpAddress(srcIpv4)); + } + builder.setEncapVrfId((long) swInterfaceVxlanDetails.encapVrfId); + builder.setVni( new VxlanVni((long) swInterfaceVxlanDetails.vni)); + LOG.debug("Vxlan tunnel: {}, id: {} attributes read as: {}", key.getName(), index, builder); + } catch (VppBaseCallException e) { + LOG.warn("Failed to readCurrentAttributes for: {}", id); + throw new ReadFailedException( id, e ); + } + } + + @Nonnull + private static InetAddress parseAddress(@Nonnull final byte[] addr) { + try { + return InetAddress.getByAddress(addr); + } catch (UnknownHostException e) { + throw new IllegalArgumentException("Cannot create InetAddress from " + Arrays.toString(addr), e); + } + } +} |