packetHandlers

Documentation

Index

• func GetDstMacAddressFromPacket(packet gopacket.Packet) (net.HardwareAddr, error)
• func GetPbit(pkt gopacket.Packet) (uint8, error)
• func GetSrcMacAddressFromPacket(packet gopacket.Packet) (net.HardwareAddr, error)
• func GetTagsFromPacket(pkt gopacket.Packet) (uint16, uint16, error)
• func GetVlanTag(pkt gopacket.Packet) (uint16, error)
• func IsDhcpPacket(pkt gopacket.Packet) bool
• func IsIcmpPacket(pkt gopacket.Packet) bool
• func IsIgmpPacket(pkt gopacket.Packet) bool
• func IsIncomingPacket(packet gopacket.Packet) bool
• func IsLldpPacket(pkt gopacket.Packet) bool
• func PopDoubleTag(pkt gopacket.Packet) (gopacket.Packet, error)
• func PopSingleTag(pkt gopacket.Packet) (gopacket.Packet, error)
• func PushDoubleTag(stag int, ctag int, pkt gopacket.Packet, pbit uint8) (gopacket.Packet, error)
• func PushSingleTag(tag int, pkt gopacket.Packet, pbit uint8) (gopacket.Packet, error)
• type PacketType
  • func GetPktType(pkt gopacket.Packet) (PacketType, error)
  • func (t PacketType) String() string

Functions

func GetDstMacAddressFromPacket

func GetDstMacAddressFromPacket(packet gopacket.Packet) (net.HardwareAddr, error)

returns the Destination Mac Address contained in the packet

func GetPbit

func GetPbit(pkt gopacket.Packet) (uint8, error)

func GetSrcMacAddressFromPacket

func GetSrcMacAddressFromPacket(packet gopacket.Packet) (net.HardwareAddr, error)

returns the Source Mac Address contained in the packet

func GetTagsFromPacket

func GetTagsFromPacket(pkt gopacket.Packet) (uint16, uint16, error)

get inner and outer tag from a packet

func GetVlanTag

func GetVlanTag(pkt gopacket.Packet) (uint16, error)

func IsDhcpPacket

func IsDhcpPacket(pkt gopacket.Packet) bool

func IsIcmpPacket

func IsIcmpPacket(pkt gopacket.Packet) bool

func IsIgmpPacket

func IsIgmpPacket(pkt gopacket.Packet) bool

func IsIncomingPacket

func IsIncomingPacket(packet gopacket.Packet) bool

return true if the packet is coming in the OLT from the DHCP Server given that we only check DHCP packets we can use the Operation Request are outgoing (toward the server) Replies are incoming (toward the OLT)

func IsLldpPacket

func IsLldpPacket(pkt gopacket.Packet) bool

func PopDoubleTag

func PopDoubleTag(pkt gopacket.Packet) (gopacket.Packet, error)

func PopSingleTag

func PopSingleTag(pkt gopacket.Packet) (gopacket.Packet, error)

func PushDoubleTag

func PushDoubleTag(stag int, ctag int, pkt gopacket.Packet, pbit uint8) (gopacket.Packet, error)

func PushSingleTag

func PushSingleTag(tag int, pkt gopacket.Packet, pbit uint8) (gopacket.Packet, error)

Types

type PacketType

type PacketType int

const (
	UNKNOWN PacketType = iota
	EAPOL
	DHCP
	IGMP
	ICMP
)

func GetPktType

func GetPktType(pkt gopacket.Packet) (PacketType, error)

returns wether it's an EAPOL or DHCP packet, error if it's none

func (PacketType) String

func (t PacketType) String() string