1 files changed, 92 insertions, 0 deletions
diff --git a/srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/write/steering/InterfacesConfigCustomizer.java b/srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/write/steering/InterfacesConfigCustomizer.java
new file mode 100644
index 000000000..67ad9d56c
--- /dev/null
+++ b/srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/write/steering/InterfacesConfigCustomizer.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2018 Bell Canada, 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.srv6.write.steering;
+
+import io.fd.hc2vpp.common.translate.util.FutureJVppCustomizer;
+import io.fd.hc2vpp.common.translate.util.NamingContext;
+import io.fd.hc2vpp.srv6.util.Srv6Util;
+import io.fd.hc2vpp.srv6.write.steering.request.L2SteeringRequest;
+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.future.FutureJVppCore;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.hc2vpp.params.xml.ns.yang.vpp.oc.srte.policy.rev180514.sr.interfaces.Interface;
+import org.opendaylight.yang.gen.v1.urn.hc2vpp.params.xml.ns.yang.vpp.oc.srte.policy.rev180514.sr.interfaces.InterfaceKey;
+import org.opendaylight.yang.gen.v1.urn.hc2vpp.params.xml.ns.yang.vpp.oc.srte.policy.rev180514.sr.interfaces._interface.Config;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public class InterfacesConfigCustomizer extends FutureJVppCustomizer implements
+        ListWriterCustomizer<Interface, InterfaceKey> {
+    private final NamingContext interfaceContext;
+
+    public InterfacesConfigCustomizer(@Nonnull final FutureJVppCore futureJVppCore,
+                                      @Nonnull final NamingContext interfaceContext) {
+        super(futureJVppCore);
+        this.interfaceContext = interfaceContext;
+    }
+
+    @Override
+    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> instanceIdentifier,
+                                       @Nonnull final Interface anInterface, @Nonnull final WriteContext writeContext)
+            throws WriteFailedException {
+        if (anInterface.getConfig() != null) {
+            writeInterfaces(instanceIdentifier, anInterface.getConfig(), writeContext, true);
+        }
+    }
+
+    @Override
+    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> instanceIdentifier,
+                                        @Nonnull final Interface anInterface, @Nonnull final WriteContext writeContext)
+            throws WriteFailedException {
+        if (anInterface.getConfig() != null) {
+            writeInterfaces(instanceIdentifier, anInterface.getConfig(), writeContext, false);
+        }
+    }
+
+    private void writeInterfaces(final @Nonnull InstanceIdentifier<Interface> instanceIdentifier,
+                                 final @Nonnull Config config, final @Nonnull WriteContext writeContext,
+                                 final boolean isWrite)
+            throws WriteFailedException {
+        Ipv6Address bsid = Srv6Util.extractBsid(instanceIdentifier, writeContext, isWrite);
+
+        if (bsid == null) {
+            throw new WriteFailedException.CreateFailedException(instanceIdentifier, config,
+                    new Throwable("Failed to extract BSID from policy for prefix"));
+        }
+        if (config.getInputInterface() != null) {
+            // forward all traffic to policy for current interface
+            int index = interfaceContext.getIndex(config.getInputInterface(), writeContext.getMappingContext());
+            sendL2Steering(instanceIdentifier, bsid, index, getFutureJVpp(), isWrite);
+        }
+    }
+
+    private void sendL2Steering(final InstanceIdentifier<Interface> instanceIdentifier, final Ipv6Address bsid,
+                                final int inputInterface, final FutureJVppCore api, final boolean isWrite)
+            throws WriteFailedException {
+        L2SteeringRequest request = new L2SteeringRequest(api);
+        request.setBindingSid(bsid);
+        request.setInputInterfaceIndex(inputInterface);
+        if (isWrite) {
+            request.write(instanceIdentifier);
+        } else {
+            request.delete(instanceIdentifier);
+        }
+    }
+}