1 files changed, 129 insertions, 0 deletions
diff --git a/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/PrefixCustomizer.java b/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/PrefixCustomizer.java
new file mode 100644
index 000000000..8d7192271
--- /dev/null
+++ b/routing/routing-impl/src/main/java/io/fd/hc2vpp/routing/write/PrefixCustomizer.java
@@ -0,0 +1,129 @@
+/*
+ * 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.routing.write;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import com.google.common.base.Preconditions;
+import io.fd.hc2vpp.common.translate.util.ByteDataTranslator;
+import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
+import io.fd.hc2vpp.common.translate.util.Ipv6Translator;
+import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
+import io.fd.honeycomb.translate.write.WriteContext;
+import io.fd.honeycomb.translate.write.WriteFailedException;
+import io.fd.vpp.jvpp.core.dto.SwInterfaceIp6NdRaPrefix;
+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.ipv6.unicast.routing.rev140525.routing.routing.instance.interfaces._interface.ipv6.router.advertisements.prefix.list.Prefix;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv6.unicast.routing.rev140525.routing.routing.instance.interfaces._interface.ipv6.router.advertisements.prefix.list.PrefixKey;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv6.unicast.routing.rev140525.routing.routing.instance.interfaces._interface.ipv6.router.advertisements.prefix.list.prefix.ControlAdvPrefixes;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv6.unicast.routing.rev140525.routing.routing.instance.interfaces._interface.ipv6.router.advertisements.prefix.list.prefix.control.adv.prefixes.Advertise;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.ipv6.unicast.routing.rev140525.routing.routing.instance.interfaces._interface.ipv6.router.advertisements.prefix.list.prefix.control.adv.prefixes.NoAdvertise;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.rev140524.routing.routing.instance.interfaces.Interface;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.vpp.routing.rev170315.ControlAdvPrefixesVppAugmentation;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+final class PrefixCustomizer extends FutureJVppCustomizer
+    implements ListWriterCustomizer<Prefix, PrefixKey>, JvppReplyConsumer, ByteDataTranslator, Ipv6Translator {
+    private static final Logger LOG = LoggerFactory.getLogger(PrefixCustomizer.class);
+
+    private final NamingContext interfaceContext;
+
+    PrefixCustomizer(@Nonnull final FutureJVppCore jvpp, @Nonnull final NamingContext interfaceContext) {
+        super(jvpp);
+        this.interfaceContext = Preconditions.checkNotNull(interfaceContext, "interfaceContext should not be null");
+    }
+
+    @Override
+    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Prefix> id,
+                                       @Nonnull final Prefix dataAfter, @Nonnull final WriteContext writeContext)
+        throws WriteFailedException {
+        LOG.debug("Writing Prefix {} dataAfter={}", id, dataAfter);
+        setPrefix(id, dataAfter, writeContext, false);
+    }
+
+    @Override
+    public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Prefix> id,
+                                        @Nonnull final Prefix dataBefore, @Nonnull final Prefix dataAfter,
+                                        @Nonnull final WriteContext writeContext) throws WriteFailedException {
+        LOG.debug("Updating Prefix {} before={} after={}", id, dataBefore, dataAfter);
+        setPrefix(id, dataAfter, writeContext, false);
+    }
+
+    @Override
+    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Prefix> id,
+                                        @Nonnull final Prefix dataBefore, @Nonnull final WriteContext writeContext)
+        throws WriteFailedException {
+        LOG.debug("Removing Prefix {} dataBefore={}", id, dataBefore);
+        setPrefix(id, dataBefore, writeContext, true);
+    }
+
+    private void setPrefix(final InstanceIdentifier<Prefix> id, final Prefix prefix, final WriteContext writeContext,
+                           final boolean isDelete) throws WriteFailedException {
+        final String ifcName = id.firstKeyOf(Interface.class).getName();
+        final int ifcIndex = interfaceContext.getIndex(ifcName, writeContext.getMappingContext());
+        final SwInterfaceIp6NdRaPrefix request = new SwInterfaceIp6NdRaPrefix();
+        request.swIfIndex = ifcIndex;
+        request.address = ipv6AddressPrefixToArray(prefix.getPrefixSpec());
+        request.addressLength = extractPrefix(prefix.getPrefixSpec()); // prefix length (vpp api naming bug)
+
+        if (isDelete) {
+            request.isNo = 1;
+        } else {
+            parseControlAdvPrefixes(request, prefix.getControlAdvPrefixes(), prefix.getAugmentation(
+                ControlAdvPrefixesVppAugmentation.class));
+        }
+        LOG.debug("Setting Prefix for interface {}(id={}): {}", ifcName, ifcIndex, request);
+        getReplyForWrite(getFutureJVpp().swInterfaceIp6NdRaPrefix(request).toCompletableFuture(), id);
+        LOG.debug("Prefix: {} updated successfully", id);
+    }
+
+    private void parseControlAdvPrefixes(final SwInterfaceIp6NdRaPrefix request,
+                                         final ControlAdvPrefixes controlAdvPrefixes,
+                                         final ControlAdvPrefixesVppAugmentation vppAugmentation) {
+        if (controlAdvPrefixes instanceof Advertise) {
+            final Advertise advertise = (Advertise) controlAdvPrefixes;
+            request.noAutoconfig = booleanToByte(!advertise.isAutonomousFlag());
+            request.noOnlink = booleanToByte(!advertise.isOnLinkFlag());
+            // request.offLink controls L bit in the same way as noOnlink, but also controls if it is installed in FIB
+            if (advertise.getValidLifetime() != null) {
+                request.valLifetime = advertise.getValidLifetime().intValue();
+            }
+            if (advertise.getPreferredLifetime() != null) {
+                checkArgument(advertise.getValidLifetime() != null,
+                    "valid-lifetime needs to be configured if preferred-lifetime is given");
+                checkArgument(advertise.getPreferredLifetime() <= advertise.getValidLifetime(),
+                    "preferred-lifetime  MUST NOT be greater than valid-lifetime.");
+                request.prefLifetime = advertise.getPreferredLifetime().intValue();
+            }
+            if (vppAugmentation != null) {
+                request.useDefault = booleanToByte(vppAugmentation.isVppDefault());
+                request.noAdvertise = booleanToByte(!vppAugmentation.isAdvertiseRouterAddress());
+            }
+        } else if (controlAdvPrefixes instanceof NoAdvertise) {
+            throw new IllegalArgumentException(
+                "NoAdvertise control-adv-prefix is not supported." +
+                    "To remove prefix from set of advertised prefixes, use DELETE request.");
+        } else {
+            throw new IllegalArgumentException("Unsupported control-adv-prefix: " + controlAdvPrefixes);
+        }
+    }
+}