From 1715b92455356a52e01ff5c4f2a42fe5336b9088 Mon Sep 17 00:00:00 2001 From: Marek Gradzki Date: Wed, 22 Nov 2017 14:02:58 +0100 Subject: HC2VPP-259: add support for ipv4 lookup Change-Id: Ic6a2da08a8839bb42366b124737bb5243671815b Signed-off-by: Marek Gradzki --- .../java/io/fd/hc2vpp/mpls/Ipv4LookupWriter.java | 92 +++++++++++++++ .../io/fd/hc2vpp/mpls/StaticLspCustomizer.java | 6 +- .../io/fd/hc2vpp/mpls/PopAndIpv4LookupTest.java | 128 +++++++++++++++++++++ 3 files changed, 225 insertions(+), 1 deletion(-) create mode 100644 mpls/impl/src/main/java/io/fd/hc2vpp/mpls/Ipv4LookupWriter.java create mode 100644 mpls/impl/src/test/java/io/fd/hc2vpp/mpls/PopAndIpv4LookupTest.java (limited to 'mpls/impl') diff --git a/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/Ipv4LookupWriter.java b/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/Ipv4LookupWriter.java new file mode 100644 index 000000000..7ac164a96 --- /dev/null +++ b/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/Ipv4LookupWriter.java @@ -0,0 +1,92 @@ +/* + * 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 io.fd.honeycomb.translate.MappingContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import io.fd.vpp.jvpp.core.dto.MplsRouteAddDel; +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._static.rev170310.StaticLspConfig; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310._static.lsp.Config; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310._static.lsp_config.InSegment; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310._static.lsp_config.in.segment.type.MplsLabel; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310.routing.mpls._static.lsps.StaticLsp; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.mpls.rev171120.LookupType; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.mpls.rev171120.StaticLspVppLookupAugmentation; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +/** + * Translates {@link StaticLspConfig.Operation#PopAndLookup} operation with {@link LookupType#Ipv4} to + * mpls_route_add_del API. + * + * @see mpls_route_add_del definition + */ +final class Ipv4LookupWriter implements LspWriter { + private static final byte IPV4_PROTOCOL = (byte) LookupType.Ipv4.getIntValue(); + + private final FutureJVppCore vppApi; + + Ipv4LookupWriter(@Nonnull final FutureJVppCore vppApi) { + this.vppApi = vppApi; + } + + @Override + public void write(@Nonnull final InstanceIdentifier id, @Nonnull final StaticLsp data, + @Nonnull final MappingContext ctx, final boolean isAdd) throws WriteFailedException { + final Config config = data.getConfig(); + final MplsRouteAddDel request = new MplsRouteAddDel(); + + request.mrIsAdd = booleanToByte(isAdd); + + translate(request, config); + translate(request, config.getAugmentation(StaticLspVppLookupAugmentation.class)); + + // default values based on inspecting VPP's CLI and make test code + request.mrClassifyTableIndex = -1; + request.mrNextHopProto = IPV4_PROTOCOL; + request.mrNextHopWeight = 1; + request.mrNextHop = new byte[0]; // no next hop since we POP + request.mrNextHopOutLabelStack = new int[0]; // no new labels + request.mrNextHopSwIfIndex = -1; + request.mrNextHopViaLabel = MPLS_LABEL_INVALID; + + getReplyForWrite(vppApi.mplsRouteAddDel(request).toCompletableFuture(), id); + } + + private void translate(@Nonnull final MplsRouteAddDel request, @Nonnull final Config config) { + final InSegment inSegment = config.getInSegment(); + checkArgument(inSegment != null, "Configuring ipv4 pop-and-lookup, but in-segment is missing."); + + checkArgument(inSegment.getType() instanceof MplsLabel, "Expecting mpls-label in-segment type, but %s given.", + inSegment.getType()); + final Long label = ((MplsLabel) inSegment.getType()).getIncomingLabel().getValue(); + request.mrLabel = label.intValue(); + } + + private void translate(@Nonnull final MplsRouteAddDel request, + @Nonnull final StaticLspVppLookupAugmentation vppLabelLookup) { + // IPv4 lookup should only happen if there is no more labels to process, so setting the EOS bit: + request.mrEos = 1; + final Long lookupInTable = vppLabelLookup.getLabelLookup().getIp4LookupInTable(); + checkArgument(lookupInTable != null, + "Configuring pop and ipv4 lookup, but ipv4 lookup table was not given"); + request.mrNextHopTableId = lookupInTable.intValue(); + } +} diff --git a/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/StaticLspCustomizer.java b/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/StaticLspCustomizer.java index b9e48cd60..54653b9c1 100644 --- a/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/StaticLspCustomizer.java +++ b/mpls/impl/src/main/java/io/fd/hc2vpp/mpls/StaticLspCustomizer.java @@ -46,12 +46,14 @@ final class StaticLspCustomizer implements ListWriterCustomizer IID = InstanceIdentifier.create(Routing.class).augmentation + (Routing1.class).child(Mpls.class).augmentation(Mpls1.class).child(StaticLsps.class) + .child(StaticLsp.class, new StaticLspKey(LSP_NAME)); + + private static final StaticLsp POP_AND_IP4_LOOKUP = getStaticLsp(); + private static final int IP4_TABLE_ID = 456; + private static final int LOCAL_LABEL = 104; + + @Mock + private FutureJVppCoreFacade jvpp; + private StaticLspCustomizer customizer; + + /** + * Equivalent of mpls local-label add eos 104 ip4-lookup-in-table 456 + */ + private static StaticLsp getStaticLsp() { + final StaticLsp data = new StaticLspBuilder() + .setName(LSP_NAME) + .setConfig(new ConfigBuilder() + .setInSegment(new InSegmentBuilder() + .setType(new MplsLabelBuilder().setIncomingLabel(new MplsLabel((long) LOCAL_LABEL)) + .build()) + .build() + ) + .setOperation(StaticLspConfig.Operation.PopAndLookup) + .addAugmentation(StaticLspVppLookupAugmentation.class, + new StaticLspVppLookupAugmentationBuilder() + .setLabelLookup(new LabelLookupBuilder() + .setType(LookupType.Ipv4) + .setIp4LookupInTable((long) IP4_TABLE_ID).build()) + .build()) + .build()) + .build(); + return data; + } + + @Override + public void setUpTest() { + final String ctxInstanceName = "test-ifc-context"; + customizer = new StaticLspCustomizer(jvpp, new NamingContext("test-prefix", ctxInstanceName)); + when(jvpp.mplsRouteAddDel(any())).thenReturn(future(new MplsRouteAddDelReply())); + defineMapping(mappingContext, IF_NAME, IF_INDEX, ctxInstanceName); + } + + @Test + public void testWrite() throws WriteFailedException { + customizer.writeCurrentAttributes(IID, POP_AND_IP4_LOOKUP, writeContext); + verify(jvpp).mplsRouteAddDel(getRequestForSimpleLsp(true)); + } + + @Test + public void testDelete() throws WriteFailedException { + customizer.deleteCurrentAttributes(IID, POP_AND_IP4_LOOKUP, writeContext); + verify(jvpp).mplsRouteAddDel(getRequestForSimpleLsp(false)); + } + + private MplsRouteAddDel getRequestForSimpleLsp(final boolean add) { + MplsRouteAddDel request = new MplsRouteAddDel(); + request.mrLabel = LOCAL_LABEL; + request.mrEos = 1; + request.mrNextHopTableId = IP4_TABLE_ID; + request.mrClassifyTableIndex = -1; // default value used in make test + request.mrIsAdd = booleanToByte(add); + request.mrNextHopProto = 0; // IPv4 data plane protocol index used by VPP + request.mrNextHopWeight = 1; // default value used in make test + request.mrNextHop = new byte[0]; // POP, so no next hop + request.mrNextHopSwIfIndex = -1; // this is what CLI is doing + request.mrNextHopViaLabel = LspWriter.MPLS_LABEL_INVALID; // default value used by make test + request.mrNextHopOutLabelStack = new int[0]; + return request; + } +} -- cgit 1.2.3-korg