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diff --git a/src/plugins/igmp/igmp_api.h b/src/plugins/igmp/igmp_api.h
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+++ b/src/plugins/igmp/igmp_api.h
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+/*
+ *------------------------------------------------------------------
+ * 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.
+ *------------------------------------------------------------------
+ */
+
+#ifndef _IGMP_API_H_
+#define _IGMP_API_H_
+
+#include <vlib/vlib.h>
+#include <vnet/ip/ip.h>
+
+/**
+ * @brief IGMP interface enable/disable
+ *  Called by a router to enable/disable the reception of IGMP messages
+ *  @param sw_if_index - Interface
+ *  @param enable - enable/disable
+ *  @param mode - Host (1) or router (0)
+ */
+int igmp_enable_disable (u32 sw_if_index, u8 enable, u8 mode);
+
+/**
+ * @brief igmp listen (RFC3376 Section 2).
+ * @param vm - vlib main
+ * @param enable - 0 == remove (S,G), else add (S,G), aka. include/exclue
+ * @param sw_if_index - interface sw_if_index
+ * @param saddr - source address
+ * @param gaddr - group address
+ * @param cli_api_configured - if zero, an igmp report has been received on interface
+ *
+ *   Add/del (S,G) on an interface. If user configured,
+ *   send a status change report from the interface.
+ *   If a report was received on interface notify registered api clients.
+ */
+int igmp_listen (vlib_main_t * vm, u8 enable, u32 sw_if_index,
+		 const ip46_address_t * saddr, const ip46_address_t * gaddr);
+
+
+#endif /* _IGMP_API_H_ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */