Function key_havesp

freebsd/netipsec/key.c:799–805

* Return 0 when there are known to be no SP's for the specified * direction. Otherwise return 1. This is used by IPsec code * to optimize performance. */

 * to optimize performance.
 */
int
key_havesp(u_int dir)
{

	return (dir == IPSEC_DIR_INBOUND || dir == IPSEC_DIR_OUTBOUND ?
		TAILQ_FIRST(&V_sptree[dir]) != NULL : 1);
}

/* %%% IPsec policy management */
/*