tcp

Documentation

Index

• Constants
• func ConfigToFilter(protocols map[string]config.Protocol) string
• func FollowTcp(tcphdr *layers.TCP, pkt *protos.Packet)
• func GetId() uint32
• func PrintTcpMap()
• func TcpInit(protocols map[string]config.Protocol) error
• func TcpSeqBefore(seq1 uint32, seq2 uint32) bool
• func TcpSeqBeforeEq(seq1 uint32, seq2 uint32) bool
• type DecoderStruct
  • func CreateDecoder(datalink layers.LinkType) (*DecoderStruct, error)
  • func (decoder *DecoderStruct) DecodePacketData(data []byte, ci *gopacket.CaptureInfo)
• type TcpStream
  • func (stream *TcpStream) AddPacket(pkt *protos.Packet, tcphdr *layers.TCP, original_dir uint8)
  • func (stream *TcpStream) Expire()
  • func (stream *TcpStream) GapInStream(original_dir uint8)

Constants

const (
	TcpDirectionReverse  = 0
	TcpDirectionOriginal = 1
)

const TCP_MAX_DATA_IN_STREAM = 10 * 1e6

const TCP_STREAM_EXPIRY = 10 * 1e9

const TCP_STREAM_HASH_SIZE = 2 ^ 16

Functions

func ConfigToFilter

func ConfigToFilter(protocols map[string]config.Protocol) string

func FollowTcp

func FollowTcp(tcphdr *layers.TCP, pkt *protos.Packet)

func GetId

func GetId() uint32

func PrintTcpMap

func PrintTcpMap()

func TcpInit

func TcpInit(protocols map[string]config.Protocol) error

func TcpSeqBefore

func TcpSeqBefore(seq1 uint32, seq2 uint32) bool

func TcpSeqBeforeEq

func TcpSeqBeforeEq(seq1 uint32, seq2 uint32) bool

Types

type DecoderStruct

type DecoderStruct struct {
	Parser *gopacket.DecodingLayerParser
	// contains filtered or unexported fields
}

func CreateDecoder

func CreateDecoder(datalink layers.LinkType) (*DecoderStruct, error)

func (*DecoderStruct) DecodePacketData

func (decoder *DecoderStruct) DecodePacketData(data []byte, ci *gopacket.CaptureInfo)

type TcpStream

type TcpStream struct {

	// protocols private data
	Data protos.ProtocolData
	// contains filtered or unexported fields
}

func (*TcpStream) AddPacket

func (stream *TcpStream) AddPacket(pkt *protos.Packet, tcphdr *layers.TCP, original_dir uint8)

func (*TcpStream) Expire

func (stream *TcpStream) Expire()

func (*TcpStream) GapInStream

func (stream *TcpStream) GapInStream(original_dir uint8)