LISP-GPE: return index of newly created fwd entry, VPP-868

Change-Id: I4fc45097cb994ab6a59503d9fcfb693d1c7ec442
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
diff --git a/src/vnet/lisp-gpe/lisp_gpe_api.c b/src/vnet/lisp-gpe/lisp_gpe_api.c
index e2c055b..ab081b3 100644
--- a/src/vnet/lisp-gpe/lisp_gpe_api.c
+++ b/src/vnet/lisp-gpe/lisp_gpe_api.c
@@ -358,7 +358,12 @@
   rv = vnet_lisp_gpe_add_del_fwd_entry (a, 0);
   vec_free (pairs);
 send_reply:
-  REPLY_MACRO (VL_API_GPE_ADD_DEL_FWD_ENTRY_REPLY);
+  /* *INDENT-OFF* */
+  REPLY_MACRO2 (VL_API_GPE_ADD_DEL_FWD_ENTRY_REPLY,
+  {
+    rmp->fwd_entry_index = clib_host_to_net_u32 (a->fwd_entry_index);
+  });
+  /* *INDENT-ON* */
 }
 
 static void