routeview

Documentation

Index

• Variables
• func ParseSystems(s string) []annotator.System
• type IPNet
• type Index
  • func ParseRouteView(file []byte) Index
  • func (ix Index) Search(s string) (IPNet, error)
• type NetIndex
  • func (ns NetIndex) Len() int
  • func (ns NetIndex) Less(i, j int) bool
  • func (ns NetIndex) Swap(i, j int)

Variables

var ErrNoASNFound = errors.New("no ASN found for address")

ErrNoASNFound is returned when search fails to identify a network for the given src IP.

Functions

func ParseSystems

func ParseSystems(s string) []annotator.System

ParseSystems converts the RouteView AS string to an annotator.System array. Invalid values are ignored.

RouteViews may contain: * a single AS number, e.g. "32", one System with one ASN * an AS set, e.g. "32,54", one System with multiple ASNs * a Multi-Origin AS (MOAS), e.g. "10_20", two Systems each with one or more ASNs.

Types

type IPNet

type IPNet struct {
	net.IPNet
	Systems string
}

IPNet represents a parsed row in a RouteView file.

type Index

type Index []NetIndex

Index is searchable array of NetIndexes.

func ParseRouteView

func ParseRouteView(file []byte) Index

ParseRouteView reads the given csv file and generates a sorted IP list.

func (Index) Search

func (ix Index) Search(s string) (IPNet, error)

Search attempts to find the given IP in the Index.

type NetIndex

type NetIndex []IPNet

NetIndex is a sortable and searchable array of IPNets.

func (NetIndex) Len

func (ns NetIndex) Len() int

Len, Less, and Swap make Index sortable.

func (NetIndex) Less

func (ns NetIndex) Less(i, j int) bool

func (NetIndex) Swap

func (ns NetIndex) Swap(i, j int)