优化抓包性能

vendor/github.com/google/gopacket/layers/udplite.go

@@ -1,44 +0,0 @@
-// Copyright 2012 Google, Inc. All rights reserved.
-// Copyright 2009-2011 Andreas Krennmair. All rights reserved.
-//
-// Use of this source code is governed by a BSD-style license
-// that can be found in the LICENSE file in the root of the source
-// tree.
-
-package layers
-
-import (
-	"encoding/binary"
-	"github.com/google/gopacket"
-)
-
-// UDPLite is the layer for UDP-Lite headers (rfc 3828).
-type UDPLite struct {
-	BaseLayer
-	SrcPort, DstPort UDPLitePort
-	ChecksumCoverage uint16
-	Checksum         uint16
-	sPort, dPort     []byte
-}
-
-// LayerType returns gopacket.LayerTypeUDPLite
-func (u *UDPLite) LayerType() gopacket.LayerType { return LayerTypeUDPLite }
-
-func decodeUDPLite(data []byte, p gopacket.PacketBuilder) error {
-	udp := &UDPLite{
-		SrcPort:          UDPLitePort(binary.BigEndian.Uint16(data[0:2])),
-		sPort:            data[0:2],
-		DstPort:          UDPLitePort(binary.BigEndian.Uint16(data[2:4])),
-		dPort:            data[2:4],
-		ChecksumCoverage: binary.BigEndian.Uint16(data[4:6]),
-		Checksum:         binary.BigEndian.Uint16(data[6:8]),
-		BaseLayer:        BaseLayer{data[:8], data[8:]},
-	}
-	p.AddLayer(udp)
-	p.SetTransportLayer(udp)
-	return p.NextDecoder(gopacket.LayerTypePayload)
-}
-
-func (u *UDPLite) TransportFlow() gopacket.Flow {
-	return gopacket.NewFlow(EndpointUDPLitePort, u.sPort, u.dPort)
-}