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- package packets
- import (
- "net"
- "github.com/google/gopacket/layers"
- )
- func NewARPTo(from net.IP, from_hw net.HardwareAddr, to net.IP, to_hw net.HardwareAddr, req uint16) (layers.Ethernet, layers.ARP) {
- eth := layers.Ethernet{
- SrcMAC: from_hw,
- DstMAC: to_hw,
- EthernetType: layers.EthernetTypeARP,
- }
- arp := layers.ARP{
- AddrType: layers.LinkTypeEthernet,
- Protocol: layers.EthernetTypeIPv4,
- HwAddressSize: 6,
- ProtAddressSize: 4,
- Operation: req,
- SourceHwAddress: from_hw,
- SourceProtAddress: from.To4(),
- DstHwAddress: to_hw,
- DstProtAddress: to.To4(),
- }
- return eth, arp
- }
- func NewARP(from net.IP, from_hw net.HardwareAddr, to net.IP, req uint16) (layers.Ethernet, layers.ARP) {
- return NewARPTo(from, from_hw, to, []byte{0, 0, 0, 0, 0, 0}, req)
- }
- func NewARPRequest(from net.IP, from_hw net.HardwareAddr, to net.IP) (error, []byte) {
- eth, arp := NewARP(from, from_hw, to, layers.ARPRequest)
- return Serialize(ð, &arp)
- }
- func NewARPReply(from net.IP, from_hw net.HardwareAddr, to net.IP, to_hw net.HardwareAddr) (error, []byte) {
- eth, arp := NewARPTo(from, from_hw, to, to_hw, layers.ARPReply)
- return Serialize(ð, &arp)
- }
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