FIB: encode the label stack in the FIB path during table dump

Change-Id: I28e8a99b980ad343a4209e673201791b91ceab4e
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 89f194f..6be4f79 100644
--- a/src/vnet/mfib/mfib_table.h
+++ b/src/vnet/mfib/mfib_table.h
@@ -291,6 +291,21 @@
 
 /**
  * @brief
+ *  Get the Table-ID of the FIB from protocol and index
+ *
+ * @param fib_index
+ *  The FIB index
+ *
+ * @paran proto
+ *  The protocol of the FIB (and thus the entries therein)
+ *
+ * @return fib_index
+ *  The tableID of the FIB
+ */
+extern u32 mfib_table_get_table_id(u32 fib_index, fib_protocol_t proto);
+
+/**
+ * @brief
  *  Get the index of the FIB for a Table-ID. This DOES NOT create the
  * FIB if it does not exist.
  *