diff options
Diffstat (limited to 'vendor/github.com/google/gopacket/layers/dot1q.go')
-rw-r--r-- | vendor/github.com/google/gopacket/layers/dot1q.go | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/vendor/github.com/google/gopacket/layers/dot1q.go b/vendor/github.com/google/gopacket/layers/dot1q.go deleted file mode 100644 index 47f93d7..0000000 --- a/vendor/github.com/google/gopacket/layers/dot1q.go +++ /dev/null @@ -1,71 +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" - "fmt" - "github.com/google/gopacket" -) - -// Dot1Q is the packet layer for 802.1Q VLAN headers. -type Dot1Q struct { - BaseLayer - Priority uint8 - DropEligible bool - VLANIdentifier uint16 - Type EthernetType -} - -// LayerType returns gopacket.LayerTypeDot1Q -func (d *Dot1Q) LayerType() gopacket.LayerType { return LayerTypeDot1Q } - -// DecodeFromBytes decodes the given bytes into this layer. -func (d *Dot1Q) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error { - d.Priority = (data[0] & 0xE0) >> 5 - d.DropEligible = data[0]&0x10 != 0 - d.VLANIdentifier = binary.BigEndian.Uint16(data[:2]) & 0x0FFF - d.Type = EthernetType(binary.BigEndian.Uint16(data[2:4])) - d.BaseLayer = BaseLayer{Contents: data[:4], Payload: data[4:]} - return nil -} - -// CanDecode returns the set of layer types that this DecodingLayer can decode. -func (d *Dot1Q) CanDecode() gopacket.LayerClass { - return LayerTypeDot1Q -} - -// NextLayerType returns the layer type contained by this DecodingLayer. -func (d *Dot1Q) NextLayerType() gopacket.LayerType { - return d.Type.LayerType() -} - -func decodeDot1Q(data []byte, p gopacket.PacketBuilder) error { - d := &Dot1Q{} - return decodingLayerDecoder(d, data, p) -} - -// SerializeTo writes the serialized form of this layer into the -// SerializationBuffer, implementing gopacket.SerializableLayer. -// See the docs for gopacket.SerializableLayer for more info. -func (d *Dot1Q) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error { - bytes, err := b.PrependBytes(4) - if err != nil { - return err - } - if d.VLANIdentifier > 0xFFF { - return fmt.Errorf("vlan identifier %v is too high", d.VLANIdentifier) - } - firstBytes := uint16(d.Priority)<<13 | d.VLANIdentifier - if d.DropEligible { - firstBytes |= 0x1000 - } - binary.BigEndian.PutUint16(bytes, firstBytes) - binary.BigEndian.PutUint16(bytes[2:], uint16(d.Type)) - return nil -} |