1 files changed, 71 insertions, 0 deletions
diff --git a/srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/write/steering/PrefixCustomizer.java b/srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/write/steering/PrefixCustomizer.java
new file mode 100644
index 000000000..7973c3203
--- /dev/null
+++ b/srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/write/steering/PrefixCustomizer.java
@@ -0,0 +1,71 @@
+/*
+ * 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.srv6.util.Srv6Util;
+import io.fd.hc2vpp.srv6.write.steering.request.L3SteeringRequest;
+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.http.cisco.com.ns.yang.oc.srte.policy.rev170918.prefixes.properties.prefixes.Prefix;
+import org.opendaylight.yang.gen.v1.http.cisco.com.ns.yang.oc.srte.policy.rev170918.prefixes.properties.prefixes.PrefixKey;
+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 PrefixCustomizer extends FutureJVppCustomizer implements ListWriterCustomizer<Prefix, PrefixKey> {
+
+    public PrefixCustomizer(@Nonnull final FutureJVppCore futureJVppCore) {
+        super(futureJVppCore);
+    }
+
+    @Override
+    public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Prefix> instanceIdentifier,
+                                       @Nonnull final Prefix prefix,
+                                       @Nonnull final WriteContext writeContext) throws WriteFailedException {
+        writePrefixes(instanceIdentifier, prefix, writeContext, true).write(instanceIdentifier);
+    }
+
+    @Override
+    public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Prefix> instanceIdentifier,
+                                        @Nonnull final Prefix prefix,
+                                        @Nonnull final WriteContext writeContext) throws WriteFailedException {
+        writePrefixes(instanceIdentifier, prefix, writeContext, false).delete(instanceIdentifier);
+    }
+
+    private L3SteeringRequest writePrefixes(final @Nonnull InstanceIdentifier<Prefix> instanceIdentifier,
+                                            final @Nonnull Prefix prefix, final @Nonnull WriteContext writeContext,
+                                            final boolean isWrite)
+            throws WriteFailedException {
+        Ipv6Address bsid = Srv6Util.extractBsid(instanceIdentifier, writeContext, isWrite);
+        int vrfFib = Srv6Util.extractVrfFib(instanceIdentifier, writeContext, isWrite);
+
+        if (bsid == null) {
+            throw new WriteFailedException.CreateFailedException(instanceIdentifier, prefix,
+                    new Throwable("Failed to extract BSID from policy for prefix"));
+        }
+        // forward only desired traffic to policy
+        L3SteeringRequest request = new L3SteeringRequest(getFutureJVpp());
+        request.setBindingSid(bsid);
+        request.setPrefix(prefix.getIpPrefix());
+        request.setFibTableIndex(vrfFib);
+        return request;
+    }
+}