mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
/*
|
|
* tcp.h
|
|
*
|
|
* Created on: 29.09.2011
|
|
* Author: Oliver
|
|
*/
|
|
|
|
#ifndef TCP_H_
|
|
#define TCP_H_
|
|
|
|
#define TCP_HDR_LEN 20
|
|
|
|
enum tcp_flags
|
|
{
|
|
TCP_ACK = 0x08,
|
|
TCP_URG_PSH = 0x14,
|
|
TCP_RST = 0x20,
|
|
TCP_SYN = 0x40,
|
|
TCP_SYN_ACK = 0x48,
|
|
TCP_FIN = 0x80,
|
|
TCP_FIN_ACK = 0x88
|
|
};
|
|
|
|
enum tcp_states
|
|
{
|
|
CLOSED = 0,
|
|
LISTEN = 1,
|
|
SYN_SENT = 2,
|
|
SYN_RCVD = 3,
|
|
ESTABLISHED = 4,
|
|
FIN_WAIT_1 = 5,
|
|
FIN_WAIT_2 = 6,
|
|
CLOSE_WAIT = 7,
|
|
CLOSING = 8,
|
|
LAST_ACK = 9,
|
|
TIME_WAIT = 10,
|
|
UNKNOWN = 11
|
|
};
|
|
|
|
enum tcp_codes
|
|
{
|
|
UNDEFINED = 0,
|
|
PACKET_OK = 1,
|
|
CLOSE_CONN = 2,
|
|
SEQ_NO_TOO_SMALL = 3,
|
|
ACK_NO_TOO_SMALL = 4,
|
|
ACK_NO_TOO_BIG = 5
|
|
};
|
|
|
|
#define REMOVE_RESERVED 0xFC
|
|
|
|
#define IS_TCP_ACK(a) ((a & TCP_ACK) > 0) // Test for ACK flag only, iognore URG und PSH flag
|
|
#define IS_TCP_RST(a) ((a & TCP_RST) > 0)
|
|
#define IS_TCP_SYN(a) ((a & TCP_SYN) > 0)
|
|
#define IS_TCP_SYN_ACK(a) ((a & TCP_SYN_ACK) > 0)
|
|
#define IS_TCP_FIN(a) ((a & TCP_FIN) > 0)
|
|
#define IS_TCP_FIN_ACK(a) ((a & TCP_FIN_ACK) > 0)
|
|
|
|
#define SET_TCP_ACK(a) a = ((a & 0x00) | TCP_ACK)
|
|
#define SET_TCP_RST(a) a = ((a & 0x00) | TCP_RST)
|
|
#define SET_TCP_SYN(a) a = ((a & 0x00) | TCP_SYN)
|
|
#define SET_TCP_SYN_ACK(a) a = ((a & 0x00) | TCP_SYN_ACK)
|
|
#define SET_TCP_FIN(a) a = ((a & 0x00) | TCP_FIN)
|
|
#define SET_TCP_FIN_ACK(a) a = ((a & 0x00) | TCP_FIN_ACK)
|
|
|
|
// TODO: Probably stack size too high
|
|
#define TCP_STACK_SIZE 4096
|
|
|
|
#include "sys/net/sixlowpan/sixlowip.h"
|
|
//
|
|
//typedef struct __attribute__ ((packed)) tcp_so_sta_t
|
|
// {
|
|
// uint32_t ack_nr;
|
|
// uint8_t mss;
|
|
// uint32_t seq_nr;
|
|
// uint8_t state;
|
|
// uint16_t window;
|
|
// } tcp_socket_status_t;
|
|
|
|
typedef struct __attribute__ ((packed)) tcp_h_t
|
|
{
|
|
uint16_t src_port;
|
|
uint16_t dst_port;
|
|
uint32_t seq_nr;
|
|
uint32_t ack_nr;
|
|
uint8_t dataOffset_reserved;
|
|
uint8_t reserved_flags;
|
|
uint16_t window;
|
|
uint16_t checksum;
|
|
uint16_t urg_pointer;
|
|
} tcp_hdr_t;
|
|
|
|
|
|
// uint8_t buffer_tcp[BUFFER_SIZE];
|
|
char tcp_stack_buffer[TCP_STACK_SIZE];
|
|
|
|
void tcp_packet_handler (void);
|
|
uint16_t tcp_csum(ipv6_hdr_t *ipv6_header, tcp_hdr_t *tcp_header);
|
|
void printTCPHeader(tcp_hdr_t *tcp_header);
|
|
void printArrayRange_tcp(uint8_t *udp_header, uint16_t len);
|
|
|
|
#endif /* TCP_H_ */
|