/**
* @brief set session admin down/up
*/
-vnet_api_error_t bfd_udp_session_set_flags (u32 sw_if_index,
+vnet_api_error_t bfd_udp_session_set_flags (vlib_main_t * vm, u32 sw_if_index,
const ip46_address_t * local_addr,
const ip46_address_t * peer_addr,
u8 admin_up_down);