HC2VPP-174: add support for BGP IPv4/IPv6 unicast

Tranlates BGP IPv4/IPv6 routes to VPP FIB.

Not supported:
 - multiple paths (https://tools.ietf.org/html/rfc7911)
 - IPv6 SR

Change-Id: I06f0e81dd44df6a2eb7a3fe95445041e8f4f7af9
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

1 files changed, 142 insertions, 0 deletions

diff --git a/bgp/inet/src/test/java/io/fd/hc2vpp/bgp/inet/Ipv6WriterTest.java b/bgp/inet/src/test/java/io/fd/hc2vpp/bgp/inet/Ipv6WriterTest.java
new file mode 100644
index 000000000..fa9554698
--- /dev/null
+++ b/bgp/inet/src/test/java/io/fd/hc2vpp/bgp/inet/Ipv6WriterTest.java
@@ -0,0 +1,142 @@
+/*
+ * 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.bgp.inet;
+
+import static io.fd.hc2vpp.bgp.inet.RouteRequestProducer.MPLS_LABEL_INVALID;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+import static org.mockito.MockitoAnnotations.initMocks;
+
+import io.fd.hc2vpp.common.test.util.FutureProducer;
+import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
+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.FutureJVppCore;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+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.inet.types.rev130715.Ipv6AddressNoZone;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.routes.Ipv6Routes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.routes.ipv6.routes.Ipv6Route;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.routes.ipv6.routes.Ipv6RouteBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.routes.ipv6.routes.Ipv6RouteKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.PathId;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.AttributesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.BgpRib;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.RibId;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.Rib;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.RibKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.bgp.rib.rib.LocRib;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.Tables;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv6AddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv6NextHopCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.Ipv6NextHopCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.next.hop.c.next.hop.ipv6.next.hop._case.Ipv6NextHopBuilder;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public class Ipv6WriterTest implements FutureProducer, ByteDataTranslator {
+    private static final InstanceIdentifier<Tables> TABLE_ID = InstanceIdentifier.create(BgpRib.class)
+        .child(Rib.class, new RibKey(new RibId("test-rib"))).child(LocRib.class)
+        .child(Tables.class, new TablesKey(Ipv6AddressFamily.class, UnicastSubsequentAddressFamily.class));
+
+    @Mock
+    private FutureJVppCore vppApi;
+    private Ipv6Writer writer;
+
+    @Before
+    public void setUp() {
+        initMocks(this);
+        writer = new Ipv6Writer(vppApi);
+        when(vppApi.ipAddDelRoute(any())).thenReturn(future(new IpAddDelRouteReply()));
+    }
+
+    @SuppressWarnings("unchecked")
+    private static InstanceIdentifier<Ipv6Route> id(final Ipv6Prefix destination, final PathId pathId) {
+        return TABLE_ID.child((Class) Ipv6Routes.class)
+            .child(Ipv6Route.class, new Ipv6RouteKey(pathId, destination));
+    }
+
+    private static Ipv6Route route(final Ipv6Prefix destination, final PathId pathId,
+                                   final Ipv6Address nextHopAddress) {
+        final Ipv6NextHopCase nextHop =
+            new Ipv6NextHopCaseBuilder().setIpv6NextHop(new Ipv6NextHopBuilder().setGlobal(nextHopAddress).build())
+                .build();
+        return new Ipv6RouteBuilder()
+            .setPrefix(destination)
+            .setPathId(pathId)
+            .setAttributes(new AttributesBuilder().setCNextHop(nextHop).build())
+            .build();
+    }
+
+    @Test
+    public void testCreate() throws WriteFailedException.CreateFailedException {
+        final Ipv6Prefix destination = new Ipv6Prefix("2001:db8:a0b:12f0:0:0:0:1/64");
+        final PathId pathId = new PathId(123L);
+        final Ipv6Address nextHopAddress = new Ipv6AddressNoZone("2001:db8:a0b:12f0:0:0:0:2");
+
+        writer.create(
+            id(destination, pathId),
+            route(destination, pathId, nextHopAddress)
+        );
+        verifyRequest(true);
+    }
+
+    @Test
+    public void testDelete() throws WriteFailedException.DeleteFailedException {
+        final Ipv6Prefix destination = new Ipv6Prefix("2001:db8:a0b:12f0:0:0:0:1/64");
+        final PathId pathId = new PathId(456L);
+        final Ipv6Address nextHopAddress = new Ipv6AddressNoZone("2001:db8:a0b:12f0:0:0:0:2");
+
+        writer.delete(
+            id(destination, pathId),
+            route(destination, pathId, nextHopAddress)
+        );
+        verifyRequest(false);
+    }
+
+    @Test(expected = WriteFailedException.UpdateFailedException.class)
+    public void testUpdate() throws WriteFailedException.UpdateFailedException {
+        final Ipv6Prefix destination = new Ipv6Prefix("2001:db8:a0b:12f0:0:0:0:1/64");
+        final PathId pathId = new PathId(456L);
+
+        // update is not supported
+        writer.update(id(destination, pathId), mock(Ipv6Route.class), mock(Ipv6Route.class));
+    }
+
+    private void verifyRequest(boolean isAdd) {
+        final IpAddDelRoute request = new IpAddDelRoute();
+        request.isAdd = booleanToByte(isAdd);
+        request.isIpv6 = 1;
+        request.nextHopSwIfIndex = -1;
+        request.nextHopViaLabel = MPLS_LABEL_INVALID;
+        request.nextHopAddress = new byte[] {
+            0x20, 0x01, 0x0d, (byte) 0xb8, 0x0a, 0x0b, 0x12, (byte) 0xf0,
+            0, 0, 0, 0, 0, 0, 0, 2};
+        request.dstAddress = new byte[] {
+            0x20, 0x01, 0x0d, (byte) 0xb8, 0x0a, 0x0b, 0x12, (byte) 0xf0,
+            0, 0, 0, 0, 0, 0, 0, 1};
+        request.dstAddressLength = 64;
+        verify(vppApi).ipAddDelRoute(request);
+    }
+}