Represents a single decoded TCP segment extracted from a captured frame for graph analysis. More...

#include <tap-tcp-stream.h>

Public Attributes
struct segment *	next

uint32_t	num

nstime_t	rel_ts

uint32_t	th_seq

uint32_t	th_ack

uint32_t	th_rawseq

uint32_t	th_rawack

uint16_t	th_flags

uint32_t	th_win

uint32_t	th_seglen

uint16_t	th_sport

uint16_t	th_dport

address	ip_src

address	ip_dst

bool	ack_karn

uint8_t	num_sack_ranges

uint32_t	sack_left_edge [MAX_TCP_SACK_RANGES]

uint32_t	sack_right_edge [MAX_TCP_SACK_RANGES]

Detailed Description

Represents a single decoded TCP segment extracted from a captured frame for graph analysis.

Member Data Documentation

◆ ack_karn

bool segment::ack_karn

True if this ACK is ambiguous under Karn's algorithm (i.e. acknowledges a retransmit)

◆ ip_dst

address segment::ip_dst

Destination IP address

◆ ip_src

address segment::ip_src

Source IP address

◆ next

struct segment* segment::next

Pointer to the next segment in the singly-linked list

◆ num

uint32_t segment::num

Wireshark frame number of the packet containing this segment

◆ num_sack_ranges

uint8_t segment::num_sack_ranges

Number of valid SACK ranges present in this segment

◆ rel_ts

nstime_t segment::rel_ts

Capture timestamp relative to the first packet in the stream

◆ sack_left_edge

uint32_t segment::sack_left_edge[MAX_TCP_SACK_RANGES]

Left (start) sequence number of each SACK block

◆ sack_right_edge

uint32_t segment::sack_right_edge[MAX_TCP_SACK_RANGES]

Right (end) sequence number of each SACK block

◆ th_ack

uint32_t segment::th_ack

Relative TCP acknowledgement number (after base sequence subtraction)

◆ th_dport

uint16_t segment::th_dport

TCP destination port

◆ th_flags

uint16_t segment::th_flags

TCP header flags (SYN, ACK, FIN, RST, etc.)

◆ th_rawack

uint32_t segment::th_rawack

Raw (absolute) TCP acknowledgement number as seen in the packet

◆ th_rawseq

uint32_t segment::th_rawseq

Raw (absolute) TCP sequence number as seen in the packet

◆ th_seglen

uint32_t segment::th_seglen

Length of the TCP payload data in bytes

◆ th_seq

uint32_t segment::th_seq

Relative TCP sequence number (after base sequence subtraction)

◆ th_sport

uint16_t segment::th_sport

TCP source port

◆ th_win

uint32_t segment::th_win

TCP receive window size in bytes (32-bit to accommodate window scaling)

The documentation for this struct was generated from the following file:

/builds/wireshark/wireshark/ui/tap-tcp-stream.h

Public Attributes