#ifndef _NETINET_TCP_CACHE_H
#define _NETINET_TCP_CACHE_H
#include <netinet/tcp_var.h>
#include <netinet/in.h>
#define ECN_MIN_CE_PROBES 10
#define ECN_MAX_CE_RATIO 7
extern void tcp_cache_set_cookie(struct tcpcb *tp, u_char *cookie, u_int8_t len);
extern int tcp_cache_get_cookie(struct tcpcb *tp, u_char *cookie, u_int8_t *len);
extern unsigned int tcp_cache_get_cookie_len(struct tcpcb *tp);
extern void tcp_heuristic_tfo_loss(struct tcpcb *tp);
extern void tcp_heuristic_tfo_rst(struct tcpcb *tp);
extern void tcp_heuristic_mptcp_loss(struct tcpcb *tp);
extern void tcp_heuristic_ecn_loss(struct tcpcb *tp);
extern void tcp_heuristic_tfo_middlebox(struct tcpcb *tp);
extern void tcp_heuristic_ecn_aggressive(struct tcpcb *tp);
extern void tcp_heuristic_tfo_success(struct tcpcb *tp);
extern void tcp_heuristic_mptcp_success(struct tcpcb *tp);
extern void tcp_heuristic_ecn_success(struct tcpcb *tp);
extern boolean_t tcp_heuristic_do_tfo(struct tcpcb *tp);
extern int tcp_heuristic_do_mptcp(struct tcpcb *tp);
extern boolean_t tcp_heuristic_do_ecn(struct tcpcb *tp);
extern void tcp_heuristic_ecn_droprst(struct tcpcb *tp);
extern void tcp_heuristic_ecn_droprxmt(struct tcpcb *tp);
extern void tcp_heuristic_ecn_synrst(struct tcpcb *tp);
extern boolean_t tcp_heuristic_do_ecn_with_address(struct ifnet *ifp,
union sockaddr_in_4_6 *local_address);
extern void tcp_heuristics_ecn_update(struct necp_tcp_ecn_cache *necp_buffer,
struct ifnet *ifp, union sockaddr_in_4_6 *local_address);
extern boolean_t tcp_heuristic_do_tfo_with_address(struct ifnet *ifp,
union sockaddr_in_4_6 *local_address, union sockaddr_in_4_6 *remote_address,
u_int8_t *cookie, u_int8_t *cookie_len);
extern void tcp_heuristics_tfo_update(struct necp_tcp_tfo_cache *necp_buffer,
struct ifnet *ifp, union sockaddr_in_4_6 *local_address,
union sockaddr_in_4_6 *remote_address);
extern void tcp_cache_init(void);
#endif