[VOL-1349] EPON OLT adapter (package B)
Change-Id: I634ef62c53813dcf4456f54948f13e06358e263c
diff --git a/vendor/github.com/google/gopacket/layers/pppoe.go b/vendor/github.com/google/gopacket/layers/pppoe.go
new file mode 100644
index 0000000..14cd63a
--- /dev/null
+++ b/vendor/github.com/google/gopacket/layers/pppoe.go
@@ -0,0 +1,60 @@
+// Copyright 2012 Google, Inc. 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"
+)
+
+// PPPoE is the layer for PPPoE encapsulation headers.
+type PPPoE struct {
+ BaseLayer
+ Version uint8
+ Type uint8
+ Code PPPoECode
+ SessionId uint16
+ Length uint16
+}
+
+// LayerType returns gopacket.LayerTypePPPoE.
+func (p *PPPoE) LayerType() gopacket.LayerType {
+ return LayerTypePPPoE
+}
+
+// decodePPPoE decodes the PPPoE header (see http://tools.ietf.org/html/rfc2516).
+func decodePPPoE(data []byte, p gopacket.PacketBuilder) error {
+ pppoe := &PPPoE{
+ Version: data[0] >> 4,
+ Type: data[0] & 0x0F,
+ Code: PPPoECode(data[1]),
+ SessionId: binary.BigEndian.Uint16(data[2:4]),
+ Length: binary.BigEndian.Uint16(data[4:6]),
+ }
+ pppoe.BaseLayer = BaseLayer{data[:6], data[6 : 6+pppoe.Length]}
+ p.AddLayer(pppoe)
+ return p.NextDecoder(pppoe.Code)
+}
+
+// SerializeTo writes the serialized form of this layer into the
+// SerializationBuffer, implementing gopacket.SerializableLayer.
+// See the docs for gopacket.SerializableLayer for more info.
+func (p *PPPoE) SerializeTo(b gopacket.SerializeBuffer, opts gopacket.SerializeOptions) error {
+ payload := b.Bytes()
+ bytes, err := b.PrependBytes(6)
+ if err != nil {
+ return err
+ }
+ bytes[0] = (p.Version << 4) | p.Type
+ bytes[1] = byte(p.Code)
+ binary.BigEndian.PutUint16(bytes[2:], p.SessionId)
+ if opts.FixLengths {
+ p.Length = uint16(len(payload))
+ }
+ binary.BigEndian.PutUint16(bytes[4:], p.Length)
+ return nil
+}