1// Copyright 2017 Google, Inc. All rights reserved. 2// 3// Use of this source code is governed by a BSD-style license 4// that can be found in the LICENSE file in the root of the source 5// tree. 6 7package layers 8 9import ( 10 "github.com/google/gopacket" 11) 12 13// STP decode spanning tree protocol packets to transport BPDU (bridge protocol data unit) message. 14type STP struct { 15 BaseLayer 16} 17 18// LayerType returns gopacket.LayerTypeSTP. 19func (s *STP) LayerType() gopacket.LayerType { return LayerTypeSTP } 20 21func decodeSTP(data []byte, p gopacket.PacketBuilder) error { 22 stp := &STP{} 23 stp.Contents = data[:] 24 // TODO: parse the STP protocol into actual subfields. 25 p.AddLayer(stp) 26 return nil 27} 28