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diff --git a/src/vnet/lawful-intercept/lawful_intercept.h b/src/vnet/lawful-intercept/lawful_intercept.h
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+/*
+ * Copyright (c) 2015 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.
+ */
+
+#ifndef __lawful_intercept_h__
+#define __lawful_intercept_h__
+
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+
+typedef struct {
+  /* LI collector info */
+  ip4_address_t * src_addrs;
+  ip4_address_t * collectors;
+  u16 * ports;
+
+  /* Hit node index */
+  u32 hit_node_index;
+
+  /* convenience */
+  vlib_main_t * vlib_main;
+  vnet_main_t * vnet_main;
+} li_main_t;
+
+li_main_t li_main;
+
+typedef CLIB_PACKED(struct {
+  ip4_header_t ip4;
+  udp_header_t udp;
+}) ip4_udp_header_t;
+
+extern vlib_node_registration_t li_hit_node;
+
+#endif /* __lawful_intercept_h__ */