From 55e274d6df5b50140a738c258eb9f9aae81931ca Mon Sep 17 00:00:00 2001 From: Hongjun Ni Date: Fri, 22 Jul 2016 19:20:18 +0800 Subject: HONEYCOMB-83: Add Gre Feature within HC PatchSet 7: refactor code PatchSet 6: Refactor based on new code organization PatchSet 5: consolidate review comments PatchSet 4: refactor to support reader registry PatchSet 3: rebuild PatchSet 2: update outer-fib-id in v3po.yang. PatchSet 1: Add GRE feature and support IPv6. Change-Id: I1fc064b618f161eaef06395380949277e2f9f060 Signed-off-by: Hongjun Ni --- .../v3po/interfacesstate/GreCustomizer.java | 143 +++++++++++++++++++++ .../v3po/interfacesstate/InterfaceUtils.java | 5 + 2 files changed, 148 insertions(+) create mode 100644 v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/GreCustomizer.java (limited to 'v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate') diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/GreCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/GreCustomizer.java new file mode 100644 index 000000000..a17a1f15b --- /dev/null +++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/GreCustomizer.java @@ -0,0 +1,143 @@ +/* + * Copyright (c) 2016 Intel 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.GreTunnel; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.Gre; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.GreBuilder; +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.GreTunnelDetails; +import org.openvpp.jvpp.dto.GreTunnelDetailsReplyDump; +import org.openvpp.jvpp.dto.GreTunnelDump; +import org.openvpp.jvpp.future.FutureJVpp; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class GreCustomizer extends FutureJVppCustomizer + implements ReaderCustomizer { + + private static final Logger LOG = LoggerFactory.getLogger(GreCustomizer.class); + private NamingContext interfaceContext; + + public GreCustomizer(@Nonnull final FutureJVpp jvpp, @Nonnull final NamingContext interfaceContext) { + super(jvpp); + this.interfaceContext = interfaceContext; + } + + @Override + public void merge(@Nonnull Builder parentBuilder, + @Nonnull Gre readValue) { + ((VppInterfaceStateAugmentationBuilder) parentBuilder).setGre(readValue); + } + + @Nonnull + @Override + public GreBuilder getBuilder(@Nonnull InstanceIdentifier id) { + return new GreBuilder(); + } + + @Override + public void readCurrentAttributes(@Nonnull final InstanceIdentifier id, + @Nonnull final GreBuilder 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, GreTunnel.class)) { + return; + } + + LOG.debug("Reading attributes for gre tunnel: {}", key.getName()); + // Dump just a single + final GreTunnelDump request = new GreTunnelDump(); + request.swIfIndex = index; + + final CompletionStage swInterfaceGreDetailsReplyDumpCompletionStage = + getFutureJVpp().greTunnelDump(request); + final GreTunnelDetailsReplyDump reply = + TranslateUtils.getReplyForRead(swInterfaceGreDetailsReplyDumpCompletionStage.toCompletableFuture(), id); + + // VPP keeps gre tunnel interfaces even after they were deleted (optimization) + // However there ar no longer any gre tunnel specific fields assigned to it and this call + // returns nothing + if (reply == null || reply.greTunnelDetails == null || reply.greTunnelDetails.isEmpty()) { + LOG.debug( + "Gre tunnel {}, id {} has no attributes assigned in VPP. Probably is a leftover interface placeholder" + + "after delete", key.getName(), index); + return; + } + + checkState(reply.greTunnelDetails.size() == 1, + "Unexpected number of returned gre tunnels: {} for tunnel: {}", reply.greTunnelDetails, key.getName()); + LOG.trace("Gre tunnel: {} attributes returned from VPP: {}", key.getName(), reply); + + final GreTunnelDetails swInterfaceGreDetails = reply.greTunnelDetails.get(0); + if (swInterfaceGreDetails.isIpv6 == 1) { + final Ipv6Address dstIpv6 = + new Ipv6Address(parseAddress(swInterfaceGreDetails.dstAddress).getHostAddress()); + builder.setDst(new IpAddress(dstIpv6)); + final Ipv6Address srcIpv6 = + new Ipv6Address(parseAddress(swInterfaceGreDetails.srcAddress).getHostAddress()); + builder.setSrc(new IpAddress(srcIpv6)); + } else { + final byte[] dstBytes = Arrays.copyOfRange(swInterfaceGreDetails.dstAddress, 0, 4); + final Ipv4Address dstIpv4 = new Ipv4Address(parseAddress(dstBytes).getHostAddress()); + builder.setDst(new IpAddress(dstIpv4)); + final byte[] srcBytes = Arrays.copyOfRange(swInterfaceGreDetails.srcAddress, 0, 4); + final Ipv4Address srcIpv4 = new Ipv4Address(parseAddress(srcBytes).getHostAddress()); + builder.setSrc(new IpAddress(srcIpv4)); + } + builder.setOuterFibId((long) swInterfaceGreDetails.outerFibId); + LOG.debug("Gre tunnel: {}, id: {} attributes read as: {}", key.getName(), index, builder); + } catch (VppBaseCallException e) { + LOG.warn("Failed to readCurrentAttributes for: {}", id, e); + 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); + } + } +} diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceUtils.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceUtils.java index b7c1e518a..e47fc05c9 100644 --- a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceUtils.java +++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceUtils.java @@ -38,6 +38,7 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VhostUser; import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanGpeTunnel; 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.GreTunnel; import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; import org.openvpp.jvpp.VppBaseCallException; import org.openvpp.jvpp.dto.SwInterfaceDetails; @@ -255,6 +256,10 @@ public final class InterfaceUtils { return VxlanTunnel.class; } + if (interfaceName.startsWith("gre")) { + return GreTunnel.class; + } + if (interfaceName.startsWith("VirtualEthernet")) { return VhostUser.class; } -- cgit 1.2.3-korg