MFIB: recurse resolution through an MFIB entry

Change-Id: I8dc261e40b8398c5c8ab6bb69ecebbd0176055d9
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/mfib/mfib_table.h b/src/vnet/mfib/mfib_table.h
index b8ade8b..89f194f 100644
--- a/src/vnet/mfib/mfib_table.h
+++ b/src/vnet/mfib/mfib_table.h
@@ -405,6 +405,22 @@
 
 /**
  * @brief
+ *  Get the less specific (covering) prefix
+ *
+ * @param fib_index
+ *  The index of the FIB
+ *
+ * @param prefix
+ *  The prefix to lookup
+ *
+ * @return
+ *  The index of the less specific fib_entry_t.
+ */
+extern fib_node_index_t mfib_table_get_less_specific(u32 fib_index,
+						    const mfib_prefix_t *prefix);
+
+/**
+ * @brief
  * Get a pointer to a FIB table
  */
 extern mfib_table_t *mfib_table_get(fib_node_index_t index,
@@ -430,4 +446,11 @@
  */
 extern u8 * format_mfib_table_memory(u8 * s, va_list * args);
 
+/**
+ * To assit UT
+ */
+extern u32 mfib_table_get_n_routes(fib_node_index_t index,
+                                   fib_protocol_t proto);
+
+
 #endif