int pim_if_connected_to_source(struct interface *ifp, struct in_addr src);
int pim_update_source_set(struct interface *ifp, struct in_addr source);
-int pim_if_is_loopback(struct pim_instance *pim, struct interface *ifp);
+bool pim_if_is_loopback(struct interface *ifp);
int pim_if_is_vrf_device(struct interface *ifp);