Provides TCP header and helper functions. More...

Detailed Description

Provides TCP header and helper functions.

Files
file	tcp.h
	TCP header and helper functions.

Data Structures
struct	tcp_hdr_t
	TCP header definition. More...

struct	tcp_hdr_opt_t
	TCP option field helper structure. More...

Functions
void	tcp_hdr_print (tcp_hdr_t *hdr)
	Print the given TCP header to STDOUT.

#define	TCP_HDR_OFFSET_MIN (0x05)
	TCP offset value boundaries.

#define	TCP_HDR_OFFSET_MAX (0x0F)
	Header offset maximum value.

#define	TCP_OPTION_KIND_EOL (0x00)
	TCP Option "Kind"-field defines.

#define	TCP_OPTION_KIND_NOP (0x01)
	"No Operation"-Option

#define	TCP_OPTION_KIND_MSS (0x02)
	"Maximum Segment Size"-Option

#define	TCP_OPTION_LENGTH_MIN (2U)
	TCP option "length"-field values.

#define	TCP_OPTION_LENGTH_MSS (0x04)
	MSS Option Size always 4.

Macro Definition Documentation

◆ TCP_HDR_OFFSET_MAX

#define TCP_HDR_OFFSET_MAX (0x0F)

Header offset maximum value.

Definition at line 36 of file tcp.h.

◆ TCP_HDR_OFFSET_MIN

#define TCP_HDR_OFFSET_MIN (0x05)

TCP offset value boundaries.

Header offset minimum value

Definition at line 35 of file tcp.h.

◆ TCP_OPTION_KIND_EOL

#define TCP_OPTION_KIND_EOL (0x00)

TCP Option "Kind"-field defines.

"End of List"-Option

Definition at line 43 of file tcp.h.

◆ TCP_OPTION_KIND_MSS

#define TCP_OPTION_KIND_MSS (0x02)

"Maximum Segment Size"-Option

Definition at line 45 of file tcp.h.

◆ TCP_OPTION_KIND_NOP

#define TCP_OPTION_KIND_NOP (0x01)

"No Operation"-Option

Definition at line 44 of file tcp.h.

◆ TCP_OPTION_LENGTH_MIN

#define TCP_OPTION_LENGTH_MIN (2U)

TCP option "length"-field values.

Minimum option field size in bytes

Definition at line 52 of file tcp.h.

◆ TCP_OPTION_LENGTH_MSS

#define TCP_OPTION_LENGTH_MSS (0x04)

MSS Option Size always 4.

Definition at line 53 of file tcp.h.

Function Documentation

◆ tcp_hdr_print()

void tcp_hdr_print ( tcp_hdr_t * hdr )

Print the given TCP header to STDOUT.

Parameters

[in] hdr TCP header to print