#ifndef _NETINET_TCP_OFLD_H_
#define _NETINET_TCP_OFLD_H_


#define tp_offload(tp) ((tp)->t_flags & TF_TOE)
#define SO_OFFLOADABLE(so) ((so->so_options & SO_NOOFFLOAD) == 0)

int ofld_connect(struct socket *so, struct sockaddr *nam);
int ofld_can_offload(struct tcpcb *tp, struct sockaddr *nam);

int ofld_send(struct tcpcb *tp);
int ofld_rcvd(struct tcpcb *tp);
int ofld_disconnect(struct tcpcb *tp);
int ofld_abort(struct tcpcb *tp);

void ofld_listen_open(struct tcpcb *tp);
void ofld_listen_close(struct tcpcb *tp);

#ifndef DISABLE_TCP_OFFLOAD
static __inline int
tcp_gen_connect(struct socket *so, struct sockaddr *nam)
{
	int error;
	struct tcpcb *tp = sototcpcb(so);
	
	if (!SO_OFFLOADABLE(so) || (error = ofld_connect(so, nam)) != 0)
		error = tcp_output(tp);
	else	
		printf("connection offloaded\n");
	
	
	return (error);
}

static __inline int
tcp_gen_disconnect(struct tcpcb *tp)
{
	int error;

	if (tp_offload(tp))
		error = ofld_disconnect(tp);
	else
		error = tcp_output(tp);

	return (error);
}

static __inline int
tcp_gen_abort(struct tcpcb *tp)
{
	int error;

	if (tp_offload(tp))
		error = ofld_abort(tp);
	else
		error = tcp_output(tp);

	return (error);
}

static __inline int
tcp_gen_send(struct tcpcb *tp)
{
	int error;

	if (tp_offload(tp))
		error = ofld_send(tp);
	else
		error = tcp_output(tp);

	return (error);
}

static __inline int
tcp_gen_rcvd(struct tcpcb *tp)
{
	int error;

	if (tp_offload(tp))
		error = ofld_rcvd(tp);
	else
		error = tcp_output(tp);

	return (error);
}

static __inline void
tcp_gen_listen_open(struct tcpcb *tp)
{
	if (SO_OFFLOADABLE(tp->t_inpcb->inp_socket))
	    ofld_listen_open(tp);
}

static __inline void
tcp_gen_listen_close(struct tcpcb *tp)
{
	ofld_listen_close(tp);
}
#else

static __inline int
tcp_gen_connect(struct socket *so, struct sockaddr *nam)
{
	return tcp_output(tp);
}

static __inline int
tcp_gen_disconnect(struct tcpcb *tp)
{
	return tcp_output(tp);
}

static __inline int
tcp_gen_abort(struct tcpcb *tp)
{
	return tcp_output(tp);
}

static __inline int
tcp_gen_send(struct tcpcb *tp)
{
	return tcp_output(tp);
}

static __inline int
tcp_gen_rcvd(struct tcpcb *tp)
{
	return tcp_output(tp);
}

static __inline void
tcp_gen_listen_open(struct tcpcb *tp) {}

static __inline void
tcp_gen_listen_close(struct tcpcb *tp) {}

#endif

struct toe_usrreqs {
	int (*tu_send)(struct tcpcb *tp);
	int (*tu_rcvd)(struct tcpcb *tp);
	int (*tu_disconnect)(struct tcpcb *tp);
	int (*tu_abort)(struct tcpcb *tp);

};

#define OFLD_LISTEN_OPEN       1
#define OFLD_LISTEN_CLOSE      2
typedef void (*ofld_listen_fn)(void *, int, struct tcpcb *);
EVENTHANDLER_DECLARE(ofld_listen, ofld_listen_fn);

#endif