xdp

package module
v0.0.0-...-edc748c Latest Latest
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 Go to latest Published: Jan 25, 2023 License: MIT Imports: 9 Imported by: 0

README

XDP

This package contains XDP/eBPF code to accelerate ADK.

It is container in its own Go module because of the way the bpf ELF file is built.

This repo already contains the built ELF artifacts (bpf_bpfeb.o, bpf_bpfel.o) and associated Go files (bpf_bpfeb.go, bpf_bpfel.go). In order to build them from scratch you can use the provided container image:

# Docker is required
$ make build

Documentation

Index

Constants

View Source 
const ADKProofLength = 4 // bytes

Variables

View Source 
var ErrNotSupported = errors.New("XDP support is not supported")
View Source 
var NativeOrder = binary.LittleEndian

Functions

func IsSupported 

func IsSupported() bool

Types

type ADK 

type ADK interface {
	StatsProvider
	Start() error
	Stop() error
}

func NewADK 

func NewADK(s ADKSettings, proof ADKProofGenerator) (ADK, error)

type ADKProofGenerator 

type ADKProofGenerator interface {
	ADKProofNow() uint32
	ADKProofNext() uint32
}

type ADKSettings 

type ADKSettings struct {
	InterfaceName   string
	Mode            Mode
	ReplaceIfLoaded bool
	UDPServerPort   int
}

type Action 

type Action uint8
const (
	ActionAborted Action = iota
	ActionDrop
	ActionPass
	ActionTX
	ActionRedirect
)

func (Action) String 

func (x Action) String() string

func (Action) Uint32 

func (x Action) Uint32() uint32

type Mode 

type Mode uint8
const (
	ModeUndefined Mode = iota
	ModeSKB
	ModeDriver
)

func ModeFromString 

func ModeFromString(s string) (m Mode, ok bool)

func (Mode) Valid 

func (m Mode) Valid() bool

type OSPAStatID 

type OSPAStatID uint8
const (
	OSPAStatIDNotOpenSPAPacket OSPAStatID = iota
	OSPAStatIDADKProofInvalid
	OSPAStatIDADKProofValid
)

func (OSPAStatID) Uint32 

func (o OSPAStatID) Uint32() uint32

type Stats 

type Stats struct {
	XDPAborted  StatsRecord
	XDPDrop     StatsRecord
	XDPPass     StatsRecord
	XDPTX       StatsRecord
	XDPRedirect StatsRecord

	OpenSPANot             uint64
	OpenSPAADKProofInvalid uint64
	OpenSPAADKProofValid   uint64
}

func (Stats) Merge 

func (s Stats) Merge(u Stats) Stats

type StatsProvider 

type StatsProvider interface {
	Stats() (Stats, error)
}

type StatsRecord 

type StatsRecord struct {
	Packets uint64
	Bytes   uint64
}

Source Files

View all Source files

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