connection

Documentation

Overview

Package connection provides a struct to encode a single TCP connection.

Index

• type Connection
  • func (c *Connection) UUID() (string, error)
• type Creator
  • func NewCreator() (Creator, error)
  • func NewFakeCreator(localIPs []*net.IP) Creator

Types

type Connection

type Connection struct {
	RemoteIP   string
	RemotePort int
	LocalIP    string
	LocalPort  int
	Cookie     string
}

Connection models a single connection. This type is checked for equality elsewhere in traceroute-caller, so be very careful adding more fields as you might accidentally change program semantics elsewhere.

func (*Connection) UUID

func (c *Connection) UUID() (string, error)

UUID returns uuid from cookie parsed from "ss -e" output.

type Creator

type Creator interface {
	FromSockID(sockid inetdiag.SockID) (Connection, error)
}

Creator allows you to create a connection object from a SockID. It properly assigns SrcIP and DestIP to RemoteIP and LocalIP.

func NewCreator

func NewCreator() (Creator, error)

NewCreator makes an object that can convert src and dst into local and remote IPs.

func NewFakeCreator

func NewFakeCreator(localIPs []*net.IP) Creator

NewFakeCreator makes a fake creator with hardcoded local IPs to enable testing in diverse network environments.