arp

Documentation

Overview

Provides encoding and decoding for ARP packets.

Index

• type Operation
  • func (o Operation) String() string
• type Packet
  • func Make() *Packet
  • func (p *Packet) Answers(other packet.Packet) bool
  • func (p *Packet) Equals(other packet.Packet) bool
  • func (p *Packet) GetLength() uint16
  • func (p *Packet) GetType() packet.Type
  • func (p *Packet) GuessPayloadType() packet.Type
  • func (p *Packet) InitChecksum(csum uint32)
  • func (p *Packet) Pack(buf *packet.Buffer) error
  • func (p *Packet) Payload() packet.Packet
  • func (p *Packet) SetPayload(pl packet.Packet) error
  • func (p *Packet) String() string
  • func (p *Packet) Unpack(buf *packet.Buffer) error

Types

type Operation

type Operation uint16

const (
	Request Operation = 1
	Reply             = 2
)

func (Operation) String

func (o Operation) String() string

type Packet

type Packet struct {
	Operation Operation `string:"op"`

	HWType    uint16
	HWAddrLen uint8            `string:"hwlen"`
	HWSrcAddr net.HardwareAddr `string:"hwsrc"`
	HWDstAddr net.HardwareAddr `string:"hwdst"`

	ProtoType    eth.EtherType `string:"ptype"`
	ProtoAddrLen uint8         `string:"plen"`
	ProtoSrcAddr net.IP        `string:"psrc"`
	ProtoDstAddr net.IP        `string:"pdst"`
}

func Make

func Make() *Packet

func (*Packet) Answers

func (p *Packet) Answers(other packet.Packet) bool

func (*Packet) Equals

func (p *Packet) Equals(other packet.Packet) bool

func (*Packet) GetLength

func (p *Packet) GetLength() uint16

func (*Packet) GetType

func (p *Packet) GetType() packet.Type

func (*Packet) GuessPayloadType

func (p *Packet) GuessPayloadType() packet.Type

func (*Packet) InitChecksum

func (p *Packet) InitChecksum(csum uint32)

func (*Packet) Pack

func (p *Packet) Pack(buf *packet.Buffer) error

func (*Packet) Payload

func (p *Packet) Payload() packet.Packet

func (*Packet) SetPayload

func (p *Packet) SetPayload(pl packet.Packet) error

func (*Packet) String

func (p *Packet) String() string

func (*Packet) Unpack

func (p *Packet) Unpack(buf *packet.Buffer) error