HC2VPP-258: add support for MPLS label push

Translates impose-and-forward operation of
/hc2vpp-ietf-routing:routing/hc2vpp-ietf-mpl:mpls/
hc2vpp-ietf-mpls-static:static-lsps/static-lsp

to ip_add_del_route call.

For single outgoing-label, use simple-path out-segment.
For multiple outgoing labels, use path-list out-segment
with single path (multiple path support is not implemented yet).

See postman collection for examples.

TODOs:

- only IPv4 prefixes and next-hops are supported (HC2VPP-264).

Change-Id: I318e722edbc1f7ffd3eff2f308fc73c2062283c0
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

1 files changed, 172 insertions, 0 deletions

diff --git a/mpls/impl/src/test/java/io/fd/hc2vpp/mpls/StaticLspCustomizerTest.java b/mpls/impl/src/test/java/io/fd/hc2vpp/mpls/StaticLspCustomizerTest.java
new file mode 100644
index 000000000..f86685322
--- /dev/null
+++ b/mpls/impl/src/test/java/io/fd/hc2vpp/mpls/StaticLspCustomizerTest.java
@@ -0,0 +1,172 @@
+/*
+ * 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 org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+import static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefixBuilder.getDefaultInstance;
+
+import io.fd.hc2vpp.common.test.write.WriterCustomizerTest;
+import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.vpp.jvpp.core.dto.IpAddDelRoute;
+import io.fd.vpp.jvpp.core.dto.IpAddDelRouteReply;
+import io.fd.vpp.jvpp.core.future.FutureJVppCoreFacade;
+import java.util.Arrays;
+import java.util.Collections;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310.Mpls1;
+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.ConfigBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310._static.lsp_config.InSegmentBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310._static.lsp_config.in.segment.type.IpPrefixBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310._static.lsp_config.out.segment.PathListBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310._static.lsp_config.out.segment.SimplePathBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310._static.lsp_config.out.segment.path.list.PathsBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310.routing.mpls.StaticLsps;
+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.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310.routing.mpls._static.lsps.StaticLspBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls._static.rev170310.routing.mpls._static.lsps.StaticLspKey;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls.rev170702.Routing1;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.mpls.rev170702.routing.Mpls;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.Routing;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.types.rev170227.MplsLabel;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public class StaticLspCustomizerTest extends WriterCustomizerTest implements ByteDataTranslator {
+
+    private static final String IF_NAME = "local0";
+    private static final int IF_INDEX = 123;
+    private static final String LSP_NAME = "static-lsp0";
+
+    private static final InstanceIdentifier<StaticLsp> 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 SIMPLE_LSP = getSimpleLsp();
+    private static final StaticLsp COMPLEX_LSP = getComplexLsp();
+
+    @Mock
+    private FutureJVppCoreFacade jvpp;
+    private StaticLspCustomizer customizer;
+
+    private static StaticLsp getSimpleLsp() {
+        final StaticLsp data = new StaticLspBuilder()
+            .setName(LSP_NAME)
+            .setConfig(new ConfigBuilder()
+                .setInSegment(new InSegmentBuilder()
+                    .setType(new IpPrefixBuilder().setIpPrefix(getDefaultInstance("1.2.3.4/24"))
+                        .build())
+                    .build()
+                )
+                .setOperation(StaticLspConfig.Operation.ImposeAndForward)
+                .setOutSegment(new SimplePathBuilder()
+                    .setNextHop(IpAddressBuilder.getDefaultInstance("5.6.7.8"))
+                    .setOutgoingInterface(IF_NAME)
+                    .setOutgoingLabel(new MplsLabel(111L))
+                    .build())
+                .build())
+            .build();
+        return data;
+    }
+
+    private static StaticLsp getComplexLsp() {
+        final StaticLsp data = new StaticLspBuilder()
+            .setName(LSP_NAME)
+            .setConfig(new ConfigBuilder()
+                .setInSegment(new InSegmentBuilder()
+                    .setType(new IpPrefixBuilder().setIpPrefix(getDefaultInstance("10.10.24.0/24"))
+                        .build())
+                    .build()
+                )
+                .setOperation(StaticLspConfig.Operation.ImposeAndForward)
+                .setOutSegment(new PathListBuilder()
+                    .setPaths(Collections.singletonList(new PathsBuilder()
+                        .setNextHop(IpAddressBuilder.getDefaultInstance("10.10.12.2"))
+                        .setOutgoingInterface(IF_NAME)
+                        .setOutgoingLabels(Arrays.asList(new MplsLabel(102L), new MplsLabel(104L)))
+                        .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.ipAddDelRoute(any())).thenReturn(future(new IpAddDelRouteReply()));
+        defineMapping(mappingContext, IF_NAME, IF_INDEX, ctxInstanceName);
+    }
+
+    @Test
+    public void testWriteSimple() throws WriteFailedException {
+        customizer.writeCurrentAttributes(IID, SIMPLE_LSP, writeContext);
+        verify(jvpp).ipAddDelRoute(getRequestForSimpleLsp(true));
+    }
+
+    @Test
+    public void testWriteComplex() throws WriteFailedException {
+        customizer.writeCurrentAttributes(IID, COMPLEX_LSP, writeContext);
+        verify(jvpp).ipAddDelRoute(getRequestForComplexLsp(true));
+    }
+
+    @Test
+    public void testDeleteSimple() throws WriteFailedException {
+        customizer.deleteCurrentAttributes(IID, SIMPLE_LSP, writeContext);
+        verify(jvpp).ipAddDelRoute(getRequestForSimpleLsp(false));
+    }
+
+    @Test
+    public void testDeleteComplex() throws WriteFailedException {
+        customizer.deleteCurrentAttributes(IID, COMPLEX_LSP, writeContext);
+        verify(jvpp).ipAddDelRoute(getRequestForComplexLsp(false));
+    }
+
+    private IpAddDelRoute getRequestForSimpleLsp(final boolean add) {
+        final IpAddDelRoute request = new IpAddDelRoute();
+        request.nextHopSwIfIndex = IF_INDEX;
+        request.isAdd = booleanToByte(add);
+        request.nextHopWeight = 1;
+        request.dstAddressLength = (byte) 24;
+        request.dstAddress = new byte[] {1, 2, 3, 4};
+        request.nextHopAddress = new byte[] {5, 6, 7, 8};
+        request.nextHopNOutLabels = 1;
+        request.nextHopViaLabel = StaticLspCustomizer.MPLS_LABEL_INVALID;
+        request.nextHopOutLabelStack = new int[] {111};
+        return request;
+    }
+
+    private IpAddDelRoute getRequestForComplexLsp(final boolean add) {
+        final IpAddDelRoute request = new IpAddDelRoute();
+        request.nextHopSwIfIndex = IF_INDEX;
+        request.isAdd = booleanToByte(add);
+        request.nextHopWeight = 1;
+        request.dstAddressLength = (byte) 24;
+        request.dstAddress = new byte[] {10, 10, 24, 0};
+        request.nextHopAddress = new byte[] {10, 10, 12, 2};
+        request.nextHopNOutLabels = 2;
+        request.nextHopViaLabel = StaticLspCustomizer.MPLS_LABEL_INVALID;
+        request.nextHopOutLabelStack = new int[] {102, 104};
+        return request;
+    }
+}