PF_AEQ
PF_AEQ(&a->addr[0], &b->addr[1], a->af) &&
PF_AEQ(&a->addr[1], &b->addr[0], a->af) &&
PF_AEQ(&sn->addr, &sk->addr[1], sk->af)) ||
PF_AEQ(&sn->addr, &sk->addr[0], sk->af))) &&
} while (! PF_AEQ(&init_addr, naddr, pd->naf) );