pcpp::tcphdr Struct Reference

#include <TcpLayer.h>

Public Attributes
uint16_t	portSrc
	Source TCP port.
uint16_t	portDst
	Destination TCP port.
uint32_t	sequenceNumber
	Sequence number.
uint32_t	ackNumber
	Acknowledgment number.
uint16_t	accurateEcnFlag: 1
	Accurate ECN flag.
uint16_t	reserved: 3
	Reserved bits.
uint16_t	dataOffset: 4
	Specifies the size of the TCP header in 32-bit words.
uint16_t	finFlag: 1
	FIN flag.
uint16_t	synFlag: 1
	SYN flag.
uint16_t	rstFlag: 1
	RST flag.
uint16_t	pshFlag: 1
	PSH flag.
uint16_t	ackFlag: 1
	ACK flag.
uint16_t	urgFlag: 1
	URG flag.
uint16_t	eceFlag: 1
	ECE flag.
uint16_t	cwrFlag: 1
	CWR flag.
uint16_t	windowSize
	The size of the receive window, which specifies the number of window size units (by default, bytes)
uint16_t	headerChecksum
	The 16-bit checksum field is used for error-checking of the header and data.
uint16_t	urgentPointer

Detailed Description

Represents an TCP protocol header

Member Data Documentation

urgentPointer

uint16_t pcpp::tcphdr::urgentPointer

If the URG flag (tcphdr::urgFlag) is set, then this 16-bit field is an offset from the sequence number indicating the last urgent data byte