tcp.h

#ifndef TCP_H
#define TCP_H

#include <stdint.h>
#include <sys/types.h>

#include "ip.h"

#define TCP_STATE_CLOSED       1
#define TCP_STATE_LISTEN       2
#define TCP_STATE_SYN_SENT     3
#define TCP_STATE_SYN_RECEIVED 4
#define TCP_STATE_ESTABLISHED  5
#define TCP_STATE_FIN_WAIT1    6
#define TCP_STATE_FIN_WAIT2    7
#define TCP_STATE_CLOSING      8
#define TCP_STATE_TIME_WAIT    9
#define TCP_STATE_CLOSE_WAIT  10
#define TCP_STATE_LAST_ACK    11

extern int
tcp_init(void);

extern int
tcp_open_rfc793(struct ip_endpoint *local, struct ip_endpoint *foreign, int active);
extern int
tcp_state(int id);
extern int
tcp_close(int id);
extern ssize_t
tcp_send(int id, uint8_t *data, size_t len);
extern ssize_t
tcp_receive(int id, uint8_t *buf, size_t size);

extern int
tcp_open(void);
extern int
tcp_bind(int id, struct ip_endpoint *local);
extern int
tcp_connect(int id, struct ip_endpoint *foreign);
extern int
tcp_listen(int id, int backlog);
extern int
tcp_accept(int id, struct ip_endpoint *foreign);

#endif