ikev2_msg_dispose
void ikev2_msg_dispose(struct iked *, struct iked_msgqueue *,
ikev2_msg_dispose(env, &sa->sa_requests, mr);
ikev2_msg_dispose(env, queue, mr);
ikev2_msg_dispose(env, queue, mr);
ikev2_msg_dispose(env, &sa->sa_responses, mr);