prefilter

Documentation

Overview

Package prefilter provides a means of configuring XDP pre-filters for DDoS-mitigation.

Index

• func ProbePreFilter(device, mode string) error
• type PreFilter
  • func NewPreFilter() (*PreFilter, error)
  • func (p *PreFilter) Delete(revision int64, cidrs []net.IPNet) error
  • func (p *PreFilter) Dump(to []string) ([]string, int64)
  • func (p *PreFilter) Insert(revision int64, cidrs []net.IPNet) error
  • func (p *PreFilter) WriteConfig(fw io.Writer)

Functions

func ProbePreFilter

func ProbePreFilter(device, mode string) error

ProbePreFilter checks whether XDP mode is supported on given device

Types

type PreFilter

type PreFilter struct {
	// contains filtered or unexported fields
}

PreFilter holds global info on related CIDR maps participating in prefilter

func NewPreFilter

func NewPreFilter() (*PreFilter, error)

NewPreFilter returns prefilter handle

func (*PreFilter) Delete

func (p *PreFilter) Delete(revision int64, cidrs []net.IPNet) error

Delete deletes slice of CIDRs (doh!) for the latest revision

func (*PreFilter) Dump

func (p *PreFilter) Dump(to []string) ([]string, int64)

Dump dumps revision and CIDRs as string slice of all participating maps

func (*PreFilter) Insert

func (p *PreFilter) Insert(revision int64, cidrs []net.IPNet) error

Insert inserts slice of CIDRs (doh!) for the latest revision

func (*PreFilter) WriteConfig

func (p *PreFilter) WriteConfig(fw io.Writer)

WriteConfig dumps the configuration for the corresponding header file