#ifndef CRASHPOWEROS_TCP_H
#define CRASHPOWEROS_TCP_H

#define TCP_PROTOCOL 6
#define TCP_CONNECT_WAITTIME 10000
#define MSS_Default 1460
#define TCP_SEG_WAITTIME 100

#define SOCKET_TCP_CLOSED 1
#define SOCKET_TCP_LISTEN 2
#define SOCKET_TCP_SYN_SENT 3
#define SOCKET_TCP_SYN_RECEIVED 4
#define SOCKET_TCP_ESTABLISHED 5
#define SOCKET_TCP_FIN_WAIT1 6
#define SOCKET_TCP_FIN_WAIT2 7
#define SOCKET_TCP_CLOSING 8
#define SOCKET_TCP_TIME_WAIT 9
#define SOCKET_TCP_CLOSE_WAIT 10
#define SOCKET_TCP_LAST_ACK 11

#include <stdint.h>

#include "common.h"

struct TCPPesudoHeader {
    uint32_t srcIP;
    uint32_t dstIP;
    uint16_t protocol;
    uint16_t totalLength;
} __attribute__((packed));

struct TCPMessage {
    uint16_t srcPort;
    uint16_t dstPort;
    uint32_t seqNum;
    uint32_t ackNum;
    uint8_t reserved : 4;
    uint8_t headerLength : 4;
    uint8_t FIN : 1;
    uint8_t SYN : 1;
    uint8_t RST : 1;
    uint8_t PSH : 1;
    uint8_t ACK : 1;
    uint8_t URG : 1;
    uint8_t ECE : 1;
    uint8_t CWR : 1;
    uint16_t window;
    uint16_t checkSum;
    uint16_t pointer;
    uint32_t options[0];
} __attribute__((packed));

void tcp_provider_send(uint32_t dstIP, uint32_t srcIP, uint16_t dstPort,
                       uint16_t srcPort, uint32_t Sequence, uint32_t ackNum,
                       bool URG, bool ACK, bool PSH, bool RST, bool SYN, bool FIN,
                       bool ECE, bool CWR, uint8_t *data, uint32_t size);
void tcp_handler(void *base);

#endif