XFRM_STATE_EXPIRED
if (x->km.state == XFRM_STATE_EXPIRED) {
x->km.state == XFRM_STATE_EXPIRED) {
x->km.state = XFRM_STATE_EXPIRED;
if (x->km.state == XFRM_STATE_EXPIRED)
x->km.state = XFRM_STATE_EXPIRED;