HC2VPP-390: Tap v2 interface implementation

Change-Id: I92fe8adabbb770a45ad47c56f5cd21262c4bd6e1
Signed-off-by: Tibor Král <tibor.kral@pantheon.tech>
Signed-off-by: Michal Cmarada <mcmarada@cisco.com>

4 files changed, 310 insertions, 3 deletions

diff --git a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/TapV2CustomizerTest.java b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/TapV2CustomizerTest.java
new file mode 100644
index 000000000..12dd43452
--- /dev/null
+++ b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfaces/TapV2CustomizerTest.java
@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2018 Pantheon Technologies 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.v3po.interfaces;
+
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import io.fd.hc2vpp.common.test.write.WriterCustomizerTest;
+import io.fd.hc2vpp.common.translate.util.Ipv4Translator;
+import io.fd.hc2vpp.common.translate.util.Ipv6Translator;
+import io.fd.hc2vpp.common.translate.util.MacTranslator;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.vpp.jvpp.core.dto.TapCreateV2;
+import io.fd.vpp.jvpp.core.dto.TapCreateV2Reply;
+import io.fd.vpp.jvpp.core.dto.TapDeleteV2;
+import io.fd.vpp.jvpp.core.dto.TapDeleteV2Reply;
+import java.util.concurrent.atomic.AtomicInteger;
+import org.junit.Assert;
+import org.junit.Test;
+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.Ipv4Prefix;
+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.Ipv6Prefix;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.VppInterfaceAugmentation;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.interfaces._interface.TapV2;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.interfaces._interface.TapV2Builder;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public class TapV2CustomizerTest extends WriterCustomizerTest
+        implements Ipv4Translator, Ipv6Translator, MacTranslator {
+
+    private static final String IFC_TEST_INSTANCE = "ifc-test-instance";
+    private TapV2Customizer tapCustomizer;
+    private static final String HOST_IF_NAME = "tapV21";
+    private static final String HOST_BRIDGE = "TestBridge";
+    private static final String HOST_IPV4_PREFIX = "192.168.255.100";
+    private static final byte HOST_IPV4_PREFIX_LEN = 24;
+    private static final String HOST_IPV4_GW = "192.168.255.1";
+    private static final String HOST_IPV6_PREFIX = "a::100";
+    private static final String HOST_IPV6_GW = "a::1";
+    private static final byte HOST_IPV6_PREFIX_LEN = -128;
+    private static final int HOST_IPV6_PREFIX_LEN_EXP = 128;
+    private static final int RX_TX_RING_SIZE = 512;
+    private static final String HOST_MAC = "00:ee:ee:ee:ee:ee";
+    private static final String HOST_NAMESPACE = "testHostNS";
+
+    @Override
+    public void setUpTest() throws Exception {
+        InterfaceTypeTestUtils.setupWriteContext(writeContext,
+                org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.TapV2.class);
+        tapCustomizer = new TapV2Customizer(api, new NamingContext("ifcintest", IFC_TEST_INSTANCE));
+    }
+
+    @Test
+    public void testCreate() throws Exception {
+        final AtomicInteger idx = new AtomicInteger(0);
+        doAnswer((i) -> {
+            final TapCreateV2 tapData = i.getArgument(0);
+            if (tapData == null) {
+                return failedFuture();
+            }
+
+            Assert.assertArrayEquals(tapData.hostBridge, HOST_BRIDGE.getBytes());
+            Assert.assertEquals(tapData.hostBridgeSet, 1);
+            Assert.assertArrayEquals(tapData.hostIfName, HOST_IF_NAME.getBytes());
+            Assert.assertEquals(tapData.hostIfNameSet, 1);
+            Assert.assertArrayEquals(tapData.hostNamespace, HOST_NAMESPACE.getBytes());
+            Assert.assertEquals(tapData.hostNamespaceSet, 1);
+            Assert.assertArrayEquals(tapData.hostIp4Addr, ipv4AddressPrefixToArray(
+                    new Ipv4Prefix(String.format("%s/%d", HOST_IPV4_PREFIX, HOST_IPV4_PREFIX_LEN))));
+            Assert.assertEquals(tapData.hostIp4AddrSet, 1);
+            Assert.assertEquals(tapData.hostIp4PrefixLen, HOST_IPV4_PREFIX_LEN);
+            Assert.assertArrayEquals(tapData.hostIp6Addr, ipv6AddressPrefixToArray(
+                    new Ipv6Prefix(String.format("%s/%d", HOST_IPV6_PREFIX, HOST_IPV6_PREFIX_LEN_EXP))));
+            Assert.assertEquals(tapData.hostIp6AddrSet, 1);
+            Assert.assertEquals(tapData.hostIp6PrefixLen, HOST_IPV6_PREFIX_LEN);
+            Assert.assertArrayEquals(tapData.hostIp4Gw, ipv4AddressPrefixToArray(
+                    new Ipv4Prefix(String.format("%s/%d", HOST_IPV4_GW, 24))));
+            Assert.assertEquals(tapData.hostIp4GwSet, 1);
+            Assert.assertArrayEquals(tapData.hostIp6Gw, ipv6AddressPrefixToArray(
+                    new Ipv6Prefix(String.format("%s/%d", HOST_IPV6_GW, 96))));
+            Assert.assertEquals(tapData.hostIp6GwSet, 1);
+            Assert.assertArrayEquals(tapData.hostMacAddr, parseMac(HOST_MAC));
+            Assert.assertEquals(tapData.hostMacAddrSet, 1);
+            Assert.assertEquals(tapData.rxRingSz, RX_TX_RING_SIZE);
+            Assert.assertEquals(tapData.txRingSz, RX_TX_RING_SIZE);
+            final TapCreateV2Reply t = new TapCreateV2Reply();
+            t.swIfIndex = idx.getAndIncrement();
+            return future(t);
+
+        }).when(api).tapCreateV2(any(TapCreateV2.class));
+
+        tapCustomizer.writeCurrentAttributes(getTapId("tap"), getTapData("tap"), writeContext);
+        tapCustomizer.writeCurrentAttributes(getTapId("tap2"), getTapData("tap2"), writeContext);
+
+        verify(api, times(2)).tapCreateV2(any(TapCreateV2.class));
+        verify(mappingContext).put(eq(mappingIid("tap", IFC_TEST_INSTANCE)), eq(
+                mapping("tap", 0).get()));
+        verify(mappingContext).put(eq(mappingIid("tap2", IFC_TEST_INSTANCE)), eq(
+                mapping("tap2", 1).get()));
+    }
+
+    @Test
+    public void testDelete() throws Exception {
+        final TapCreateV2Reply t = new TapCreateV2Reply();
+        t.swIfIndex = 0;
+        doReturn(future(t)).when(api).tapCreateV2(any(TapCreateV2.class));
+
+        doReturn(future(new TapDeleteV2Reply())).when(api).tapDeleteV2(any(TapDeleteV2.class));
+        tapCustomizer.writeCurrentAttributes(getTapId("tap-v2"), getTapData("tap-v2"), writeContext);
+        defineMapping(mappingContext, "tap-v2", 1, IFC_TEST_INSTANCE);
+        tapCustomizer.deleteCurrentAttributes(getTapId("tap-v2"), getTapData("tap-v2"), writeContext);
+
+        verify(api).tapCreateV2(any(TapCreateV2.class));
+        verify(api).tapDeleteV2(any(TapDeleteV2.class));
+        verify(mappingContext).delete(eq(mappingIid("tap-v2", IFC_TEST_INSTANCE)));
+    }
+
+    private InstanceIdentifier<TapV2> getTapId(final String tap) {
+        return InstanceIdentifier.create(Interfaces.class).child(Interface.class, new InterfaceKey(tap)).augmentation(
+                VppInterfaceAugmentation.class).child(TapV2.class);
+    }
+
+    private TapV2 getTapData(final String tap) {
+        return new TapV2Builder()
+                .setHostInterfaceName(HOST_IF_NAME)
+                .setMac(new PhysAddress(HOST_MAC))
+                .setTag(tap + "_tag")
+                .setHostBridge(HOST_BRIDGE)
+                .setHostIpv4Address(new Ipv4Prefix(String.format("%s/%s", HOST_IPV4_PREFIX, HOST_IPV4_PREFIX_LEN)))
+                .setHostIpv4Gateway(new Ipv4Address(HOST_IPV4_GW))
+                .setHostIpv6Address(new Ipv6Prefix(String.format("%s/%s", HOST_IPV6_PREFIX, HOST_IPV6_PREFIX_LEN_EXP)))
+                .setHostIpv6Gateway(new Ipv6Address(HOST_IPV6_GW))
+                .setRxRingSize(RX_TX_RING_SIZE)
+                .setTxRingSize(RX_TX_RING_SIZE)
+                .setHostMac(new PhysAddress(HOST_MAC))
+                .setHostNamespace(HOST_NAMESPACE)
+                .build();
+    }
+}
diff --git a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/InterfaceDataTranslatorTest.java b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/InterfaceDataTranslatorTest.java
index 17665ee30..a3864e583 100644
--- a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/InterfaceDataTranslatorTest.java
+++ b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/InterfaceDataTranslatorTest.java
@@ -34,6 +34,7 @@ import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.
 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.rev181008.AfPacket;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.Tap;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.TapV2;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.VhostUser;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.VxlanGpeTunnel;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.VxlanTunnel;
@@ -61,7 +62,8 @@ public class InterfaceDataTranslatorTest implements InterfaceDataTranslator {
 
     @Test
     public void testGetInterfaceType() {
-        assertEquals(Tap.class, getInterfaceType("tap0"));
+        assertEquals(Tap.class, getInterfaceType("tapcli-0"));
+        assertEquals(TapV2.class, getInterfaceType("tap0"));
         assertEquals(VxlanTunnel.class, getInterfaceType("vxlan0"));
         assertEquals(VxlanGpeTunnel.class, getInterfaceType("vxlan_gpe0"));
         assertEquals(VhostUser.class, getInterfaceType("VirtualEthernet0/0/0"));
@@ -72,7 +74,8 @@ public class InterfaceDataTranslatorTest implements InterfaceDataTranslator {
 
     @Test
     public void testIsInterfaceOfType() {
-        assertTrue(isInterfaceOfType(Tap.class, interfaceDetails("tap0")));
+        assertTrue(isInterfaceOfType(Tap.class, interfaceDetails("tapcli-0")));
+        assertTrue(isInterfaceOfType(TapV2.class, interfaceDetails("tap0")));
         assertTrue(isInterfaceOfType(VxlanTunnel.class, interfaceDetails("vxlan0")));
         assertTrue(isInterfaceOfType(VxlanGpeTunnel.class, interfaceDetails("vxlan_gpe0")));
         assertTrue(isInterfaceOfType(VhostUser.class, interfaceDetails("VirtualEthernet0/0/0")));
diff --git a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/TapCustomizerTest.java b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/TapCustomizerTest.java
index aa07eaff5..11d8ab8da 100644
--- a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/TapCustomizerTest.java
+++ b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/TapCustomizerTest.java
@@ -44,7 +44,7 @@ import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 public class TapCustomizerTest extends ReaderCustomizerTest<Tap, TapBuilder> implements InterfaceDumpHelper {
 
     private static final String IFC_CTX_NAME = "ifc-test-instance";
-    private static final String IF_NAME = "tap1";
+    private static final String IF_NAME = "tapcli-1";
     private static final String TAP_NAME = "testTapName";
     private static final int IF_INDEX = 1;
     private static final InstanceIdentifier<Tap> IID =
diff --git a/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/TapV2CustomizerTest.java b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/TapV2CustomizerTest.java
new file mode 100644
index 000000000..ee77afc82
--- /dev/null
+++ b/v3po/v3po2vpp/src/test/java/io/fd/hc2vpp/v3po/interfacesstate/TapV2CustomizerTest.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2018 Pantheon Technologies 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.v3po.interfacesstate;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import io.fd.hc2vpp.common.test.read.ReaderCustomizerTest;
+import io.fd.hc2vpp.common.test.util.InterfaceDumpHelper;
+import io.fd.hc2vpp.common.translate.util.Ipv4Translator;
+import io.fd.hc2vpp.common.translate.util.Ipv6Translator;
+import io.fd.hc2vpp.common.translate.util.MacTranslator;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.hc2vpp.v3po.interfacesstate.cache.InterfaceCacheDumpManager;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import io.fd.vpp.jvpp.core.dto.SwInterfaceDetails;
+import io.fd.vpp.jvpp.core.dto.SwInterfaceTapV2Details;
+import io.fd.vpp.jvpp.core.dto.SwInterfaceTapV2DetailsReplyDump;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
+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.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfacesState;
+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.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.PhysAddress;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.VppInterfaceStateAugmentation;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.VppInterfaceStateAugmentationBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.interfaces.state._interface.TapV2;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev181008.interfaces.state._interface.TapV2Builder;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public class TapV2CustomizerTest extends ReaderCustomizerTest<TapV2, TapV2Builder> implements InterfaceDumpHelper,
+        Ipv4Translator, Ipv6Translator, MacTranslator {
+
+    private static final String IFC_CTX_NAME = "ifc-test-instance";
+    private static final String IF_NAME = "tapV21";
+    private static final String DEVICE_NAME = "testTapV2Device";
+    private static final int IF_INDEX = 1;
+    private static final String HOST_BRIDGE = "TestBridge";
+    private static final String HOST_IPV4_PREFIX = "192.168.255.100";
+    private static final byte HOST_IPV4_PREFIX_LEN = 24;
+    private static final String HOST_IPV6_PREFIX = "a::100";
+    private static final byte HOST_IPV6_PREFIX_LEN = -128;
+    private static final int HOST_IPV6_PREFIX_LEN_EXP = 128;
+    private static final int RX_TX_RING_SIZE = 512;
+    private static final String HOST_MAC = "00:ee:ee:ee:ee:ee";
+    private static final String HOST_NAMESPACE = "testHostNS";
+
+    private static final InstanceIdentifier<TapV2> IID =
+            InstanceIdentifier.create(InterfacesState.class).child(Interface.class, new InterfaceKey(IF_NAME))
+                    .augmentation(VppInterfaceStateAugmentation.class).child(TapV2.class);
+    private NamingContext interfaceContext;
+
+    @Mock
+    private InterfaceCacheDumpManager dumpCacheManager;
+
+    public TapV2CustomizerTest() {
+        super(TapV2.class, VppInterfaceStateAugmentationBuilder.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        interfaceContext = new NamingContext("generatedIfaceName", IFC_CTX_NAME);
+        defineMapping(mappingContext, IF_NAME, IF_INDEX, IFC_CTX_NAME);
+        when(dumpCacheManager.getInterfaceDetail(IID, ctx, IF_NAME)).thenReturn(ifaceDetails());
+    }
+
+    private SwInterfaceDetails ifaceDetails() {
+        final SwInterfaceDetails details = new SwInterfaceDetails();
+        details.swIfIndex = IF_INDEX;
+        details.interfaceName = IF_NAME.getBytes();
+        details.tag = new byte[64];
+        return details;
+    }
+
+    @Override
+    protected ReaderCustomizer<TapV2, TapV2Builder> initCustomizer() {
+        return new TapV2Customizer(api, interfaceContext, dumpCacheManager);
+    }
+
+    @Test
+    public void testRead() throws ReadFailedException {
+        final TapV2Builder builder = mock(TapV2Builder.class);
+        when(api.swInterfaceTapV2Dump(any())).thenReturn(future(tapDump()));
+        getCustomizer().readCurrentAttributes(IID, builder, ctx);
+        verify(builder).setHostInterfaceName(IF_NAME);
+        verify(builder).setDeviceName(DEVICE_NAME);
+        verify(builder).setHostBridge(HOST_BRIDGE);
+        verify(builder)
+                .setHostIpv4Address(new Ipv4Prefix(String.format("%s/%d", HOST_IPV4_PREFIX, HOST_IPV4_PREFIX_LEN)));
+        verify(builder)
+                .setHostIpv6Address(new Ipv6Prefix(String.format("%s/%d", HOST_IPV6_PREFIX, HOST_IPV6_PREFIX_LEN_EXP)));
+        verify(builder).setTxRingSize(RX_TX_RING_SIZE);
+        verify(builder).setRxRingSize(RX_TX_RING_SIZE);
+        verify(builder).setHostNamespace(HOST_NAMESPACE);
+        verify(builder).setHostMac(new PhysAddress(HOST_MAC));
+    }
+
+    @Test(expected = ReadFailedException.class)
+    public void testReadFailed() throws ReadFailedException {
+        when(api.swInterfaceTapV2Dump(any())).thenReturn(failedFuture());
+        getCustomizer().readCurrentAttributes(IID, mock(TapV2Builder.class), ctx);
+    }
+
+    private SwInterfaceTapV2DetailsReplyDump tapDump() {
+        final SwInterfaceTapV2DetailsReplyDump reply = new SwInterfaceTapV2DetailsReplyDump();
+        final SwInterfaceTapV2Details details = new SwInterfaceTapV2Details();
+        details.devName = DEVICE_NAME.getBytes(UTF_8);
+        details.swIfIndex = IF_INDEX;
+        details.hostBridge = HOST_BRIDGE.getBytes(UTF_8);
+        details.hostNamespace = HOST_NAMESPACE.getBytes(UTF_8);
+        details.hostIfName = IF_NAME.getBytes(UTF_8);
+        details.hostIp4PrefixLen = HOST_IPV4_PREFIX_LEN;
+        details.hostIp4Addr = ipv4AddressNoZoneToArray(HOST_IPV4_PREFIX);
+        details.hostIp6Addr = ipv6AddressNoZoneToArray(new Ipv6AddressNoZone(HOST_IPV6_PREFIX));
+        details.hostIp6PrefixLen = HOST_IPV6_PREFIX_LEN;
+        details.hostMacAddr = parseMac(HOST_MAC);
+        details.txRingSz = details.rxRingSz = RX_TX_RING_SIZE;
+        reply.swInterfaceTapV2Details.add(details);
+        return reply;
+    }
+}