-stream_session_t *session_lookup4 (u32 fib_index, ip4_address_t * lcl,
- ip4_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto);
-stream_session_t *session_lookup6 (u32 fib_index, ip6_address_t * lcl,
- ip6_address_t * rmt, u16 lcl_port,
- u16 rmt_port, u8 proto);
+stream_session_t *session_lookup_safe4 (u32 fib_index, ip4_address_t * lcl,
+ ip4_address_t * rmt, u16 lcl_port,
+ u16 rmt_port, u8 proto);
+stream_session_t *session_lookup_safe6 (u32 fib_index, ip6_address_t * lcl,
+ ip6_address_t * rmt, u16 lcl_port,
+ u16 rmt_port, u8 proto);