Proxy ARP reader/writer

Change-Id: Iabb947e89cbb906e78e4d87bc99fb5e8d09e495c
Signed-off-by: Wojciech Dec <wdec@cisco.com>

2 files changed, 199 insertions, 0 deletions

diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfaces/ProxyArpCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfaces/ProxyArpCustomizer.java
new file mode 100644
index 000000000..ea478ce53
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfaces/ProxyArpCustomizer.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.interfaces;
+
+import com.google.common.net.InetAddresses;
+import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
+import io.fd.honeycomb.translate.v3po.util.FutureJVppCustomizer;
+import io.fd.honeycomb.translate.spi.write.WriterCustomizer;
+import io.fd.honeycomb.translate.v3po.util.FutureJVppCustomizer;
+import io.fd.honeycomb.translate.v3po.util.NamingContext;
+import io.fd.honeycomb.translate.v3po.util.TranslateUtils;
+import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+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.interfaces.rev140508.interfaces.Interface;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces._interface.ProxyArp;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.VppBaseCallException;
+import org.openvpp.jvpp.dto.ProxyArpAddDel;
+import org.openvpp.jvpp.dto.ProxyArpAddDelReply;
+import org.openvpp.jvpp.future.FutureJVpp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.annotation.Nonnull;
+import java.net.InetAddress;
+import java.util.concurrent.CompletionStage;
+
+
+public class ProxyArpCustomizer extends FutureJVppCustomizer implements WriterCustomizer<ProxyArp> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(ProxyArpCustomizer.class);
+    private final NamingContext interfaceContext;
+
+    public ProxyArpCustomizer(final FutureJVpp vppApi, final NamingContext interfaceContext) {
+        super(vppApi);
+        this.interfaceContext = interfaceContext;
+    }
+
+    @Override
+    public void writeCurrentAttributes(@Nonnull InstanceIdentifier<ProxyArp> id, @Nonnull ProxyArp dataAfter, @Nonnull WriteContext writeContext) throws WriteFailedException {
+        final String swIfName = id.firstKeyOf(Interface.class).getName();
+
+        try {
+            setProxyArp(id, swIfName, dataAfter, writeContext, (byte) 1 /* 1 is add */);
+        } catch (VppBaseCallException e) {
+            LOG.error("Failed to set Proxy ARP settings: {}, for interface: {}", dataAfter, swIfName);
+            throw new WriteFailedException(id, dataAfter.toString(), e);
+        }
+    }
+
+    @Override
+    public void updateCurrentAttributes(@Nonnull InstanceIdentifier<ProxyArp> id, @Nonnull ProxyArp dataBefore,
+                                        @Nonnull ProxyArp dataAfter, @Nonnull WriteContext writeContext)
+            throws WriteFailedException.UpdateFailedException {
+        throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter,
+                new UnsupportedOperationException("ARP proxy update is not supported"));
+    }
+
+    @Override
+    public void deleteCurrentAttributes(@Nonnull InstanceIdentifier<ProxyArp> id, @Nonnull ProxyArp dataBefore,
+                                        @Nonnull WriteContext writeContext) throws WriteFailedException {
+
+        final String swIfName = id.firstKeyOf(Interface.class).getName();
+        try {
+            setProxyArp(id, swIfName, dataBefore, writeContext, (byte) 0 /* 0 is delete */);
+        } catch (VppBaseCallException e) {
+            LOG.debug("Failed to delete Proxy ARP settings: {}, for interface: {}", dataBefore, swIfName);
+            throw new WriteFailedException.DeleteFailedException(id, e);
+        }
+    }
+
+    private void setProxyArp(InstanceIdentifier<ProxyArp> id, String swIfName, ProxyArp proxyArp, WriteContext
+            writeContext, byte operation) throws VppBaseCallException, WriteFailedException {
+
+        LOG.debug("Setting Proxy ARP settings for interface: {}", swIfName);
+        final InetAddress srcAddress = InetAddresses.forString(getv4AddressString(proxyArp.getLowAddr()));
+        final InetAddress dstAddress = InetAddresses.forString(getv4AddressString(proxyArp.getHighAddr()));
+        final int vrfId = proxyArp.getVrfId().intValue();
+        final CompletionStage<ProxyArpAddDelReply> proxyArpAddDelReplyCompletionStage =
+                getFutureJVpp().proxyArpAddDel(getProxyArpConfRequest(operation, srcAddress.getAddress(),
+                        dstAddress.getAddress(), vrfId));
+
+        final ProxyArpAddDelReply reply =
+                TranslateUtils.getReplyForWrite(proxyArpAddDelReplyCompletionStage.toCompletableFuture(), id);
+        LOG.debug("Proxy ARP setting applied, with reply context:", reply.context);
+    }
+
+    private static ProxyArpAddDel getProxyArpConfRequest(final byte isAdd, final byte[] lAddr, final byte[] hAddr,
+                                                         final int vrfId) {
+
+        final ProxyArpAddDel proxyArpAddDel = new ProxyArpAddDel();
+        proxyArpAddDel.isAdd = isAdd;
+        proxyArpAddDel.lowAddress = lAddr;
+        proxyArpAddDel.hiAddress = hAddr;
+        proxyArpAddDel.vrfId = vrfId;
+        return proxyArpAddDel;
+    }
+
+    private String getv4AddressString(@Nonnull final Ipv4Address addr) {
+        return addr.getValue();
+    }
+}
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/ProxyArpCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/ProxyArpCustomizer.java
new file mode 100644
index 000000000..07e7ff069
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/ProxyArpCustomizer.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.interfacesstate;
+
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import io.fd.honeycomb.translate.v3po.util.FutureJVppCustomizer;
+import io.fd.honeycomb.translate.v3po.util.NamingContext;
+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.opendaylight.params.xml.ns.yang.v3po.rev150105.VppInterfaceStateAugmentationBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.ProxyArp;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.future.FutureJVpp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.annotation.Nonnull;
+
+public class ProxyArpCustomizer extends FutureJVppCustomizer
+        implements ReaderCustomizer<ProxyArp,
+        org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.
+                state._interface.ProxyArpBuilder> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(ProxyArpCustomizer.class);
+    private final NamingContext interfaceContext;
+
+    public ProxyArpCustomizer(final FutureJVpp vppApi, final NamingContext interfaceContext) {
+        super(vppApi);
+        this.interfaceContext = interfaceContext;
+    }
+
+    @Override
+    public void merge(@Nonnull Builder<? extends DataObject> parentBuilder,
+                      @Nonnull org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105
+                              .interfaces.state._interface.ProxyArp readValue) {
+
+        ((VppInterfaceStateAugmentationBuilder) parentBuilder).setProxyArp(readValue);
+    }
+
+    @Nonnull
+    @Override
+    public org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces.state
+            ._interface.ProxyArpBuilder getBuilder(
+            @Nonnull InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight
+                    .params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.ProxyArp> id) {
+
+        return new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.interfaces
+                .state._interface.ProxyArpBuilder();
+    }
+
+    @Override
+    public void readCurrentAttributes(@Nonnull InstanceIdentifier<org.opendaylight.yang.gen.v1.urn.opendaylight
+            .params.xml.ns.yang.v3po.rev150105.interfaces.state._interface.ProxyArp> id,
+                                      @Nonnull org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po
+                                              .rev150105.interfaces.state._interface.ProxyArpBuilder builder,
+                                      @Nonnull ReadContext ctx) throws ReadFailedException {
+
+        //TODO: Implement fully when VPP Proxy ARP read API is available
+        // https://jira.fd.io/browse/VPP-225
+        final InterfaceKey key = id.firstKeyOf(Interface.class);
+        final int index = interfaceContext.getIndex(key.getName(), ctx.getMappingContext());
+        LOG.warn("Reading of ARP data not (yet) supported by VPP API");
+    }
+}