diff options
Diffstat (limited to 'mpls/impl/src/main/java/io/fd/hc2vpp/mpls/MplsInterfaceCustomizer.java')
-rw-r--r-- | mpls/impl/src/main/java/io/fd/hc2vpp/mpls/MplsInterfaceCustomizer.java | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/MplsInterfaceCustomizer.java b/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/MplsInterfaceCustomizer.java new file mode 100644 index 000000000..718a69924 --- /dev/null +++ b/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/MplsInterfaceCustomizer.java @@ -0,0 +1,114 @@ +/* + * Copyright (c) 2017 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.hc2vpp.mpls; + +import static com.google.common.base.Preconditions.checkArgument; +import static java.util.Objects.requireNonNull; + +import io.fd.hc2vpp.common.translate.util.ByteDataTranslator; +import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer; +import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer; +import io.fd.hc2vpp.common.translate.util.NamingContext; +import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer; +import io.fd.honeycomb.translate.write.WriteContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import io.fd.vpp.jvpp.core.dto.MplsTableAddDel; +import io.fd.vpp.jvpp.core.dto.SwInterfaceSetMplsEnable; +import io.fd.vpp.jvpp.core.future.FutureJVppCore; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls.rev170702.interfaces.mpls.Interface; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls.rev170702.interfaces.mpls.InterfaceKey; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +final class MplsInterfaceCustomizer extends FutureJVppCustomizer + implements ListWriterCustomizer<Interface, InterfaceKey>, JvppReplyConsumer, ByteDataTranslator { + + private static final Logger LOG = LoggerFactory.getLogger(MplsInterfaceCustomizer.class); + + private final NamingContext ifcContext; + + MplsInterfaceCustomizer(@Nonnull final FutureJVppCore vppApi, @Nonnull final NamingContext ifcContext) { + super(vppApi); + this.ifcContext = requireNonNull(ifcContext, "ifcContext should not be null"); + } + + @Override + public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id, + @Nonnull final Interface ifc, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + final String swIfName = ifc.getName(); + final int swIfIndex = ifcContext.getIndex(swIfName, writeContext.getMappingContext()); + checkArgument(ifc.getConfig() != null, "MPLS interface configuration missing"); + final Boolean enabled = ifc.getConfig().isEnabled(); + LOG.debug("Configuring MPLS on interface {}(id={}): enabled={}", swIfName, swIfIndex, enabled); + + // The MPLS default table must also be explicitly created via the API before we enable it on interface + // If table already exists, request is ignored by VPP. + // In future, it might be useful to implement MPLS table management (HC2VPP-260). + createDefaultMplsTable(id); + + // ietf-mpls does not define config node as mandatory child of MPLS interface list + setInterfaceMplsState(id, swIfName, swIfIndex, enabled); + + LOG.debug("MPLS successfully configured on interface {}(id={})", swIfName, swIfIndex); + } + + @Override + public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id, + @Nonnull final Interface dataBefore, + @Nonnull final Interface dataAfter, @Nonnull final WriteContext writeContext) + throws WriteFailedException { + writeCurrentAttributes(id, dataAfter, writeContext); + } + + @Override + public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id, + @Nonnull final Interface ifc, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + final String swIfName = ifc.getName(); + final int swIfIndex = ifcContext.getIndex(swIfName, writeContext.getMappingContext()); + LOG.debug("Disabling MPLS on interface {}(id={})", swIfName, swIfIndex); + + // Map delete to MPLS disable regardless of previous MPLS config: + setInterfaceMplsState(id, swIfName, swIfIndex, false); + + LOG.debug("MPLS successfully disabled on interface {}(id={})", swIfName, swIfIndex); + } + + private void createDefaultMplsTable(@Nonnull final InstanceIdentifier<Interface> id) throws WriteFailedException { + final MplsTableAddDel request = new MplsTableAddDel(); + // Map delete to MPLS disable regardless of previous MPLS config: + request.mtIsAdd = 1; + request.mtTableId = 0; + request.mtName = new byte[0]; + LOG.trace("Creating default MPLS table", request); + getReplyForWrite(getFutureJVpp().mplsTableAddDel(request).toCompletableFuture(), id); + + } + + private void setInterfaceMplsState(@Nonnull final InstanceIdentifier<Interface> id, @Nonnull final String swIfName, + final int swIfIndex, final boolean enabled) throws WriteFailedException { + final SwInterfaceSetMplsEnable request = new SwInterfaceSetMplsEnable(); + // Map delete to MPLS disable regardless of previous MPLS config: + request.enable = booleanToByte(enabled); + request.swIfIndex = swIfIndex; + LOG.trace("Updating MPLS flag for interface {}(id={}): {}", swIfName, swIfIndex, request); + getReplyForWrite(getFutureJVpp().swInterfaceSetMplsEnable(request).toCompletableFuture(), id); + } +} |