extern int key_checkrequest(struct ipsecrequest *isr, struct secasindex *,
struct secasvar **sav);
extern struct secasvar *key_allocsa(u_int, caddr_t, caddr_t,
u_int, u_int32_t);
extern u_int16_t key_natt_get_translated_port(struct secasvar *);
extern void key_freesp(struct secpolicy *, int);
extern int key_checkrequest(struct ipsecrequest *isr, struct secasindex *,
struct secasvar **sav);
extern struct secasvar *key_allocsa(u_int, caddr_t, caddr_t,
u_int, u_int32_t);
extern u_int16_t key_natt_get_translated_port(struct secasvar *);
extern void key_freesp(struct secpolicy *, int);