extern struct ospf *ospf_lookup_by_inst_name(unsigned short instance,
const char *name);
extern struct ospf *ospf_lookup_by_vrf_id(vrf_id_t vrf_id);
-extern struct ospf *ospf_lookup_by_vrf(struct vrf *vrf);
extern void ospf_finish(struct ospf *);
extern void ospf_router_id_update(struct ospf *ospf);
extern int ospf_network_set(struct ospf *, struct prefix_ipv4 *, struct in_addr,