[VOL-1349] EPON OLT adapter (package B)
Change-Id: I634ef62c53813dcf4456f54948f13e06358e263c
diff --git a/vendor/github.com/google/gopacket/layers/linux_sll.go b/vendor/github.com/google/gopacket/layers/linux_sll.go
new file mode 100644
index 0000000..85a4f8b
--- /dev/null
+++ b/vendor/github.com/google/gopacket/layers/linux_sll.go
@@ -0,0 +1,98 @@
+// 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"
+ "errors"
+ "fmt"
+ "net"
+
+ "github.com/google/gopacket"
+)
+
+type LinuxSLLPacketType uint16
+
+const (
+ LinuxSLLPacketTypeHost LinuxSLLPacketType = 0 // To us
+ LinuxSLLPacketTypeBroadcast LinuxSLLPacketType = 1 // To all
+ LinuxSLLPacketTypeMulticast LinuxSLLPacketType = 2 // To group
+ LinuxSLLPacketTypeOtherhost LinuxSLLPacketType = 3 // To someone else
+ LinuxSLLPacketTypeOutgoing LinuxSLLPacketType = 4 // Outgoing of any type
+ // These ones are invisible by user level
+ LinuxSLLPacketTypeLoopback LinuxSLLPacketType = 5 // MC/BRD frame looped back
+ LinuxSLLPacketTypeFastroute LinuxSLLPacketType = 6 // Fastrouted frame
+)
+
+func (l LinuxSLLPacketType) String() string {
+ switch l {
+ case LinuxSLLPacketTypeHost:
+ return "host"
+ case LinuxSLLPacketTypeBroadcast:
+ return "broadcast"
+ case LinuxSLLPacketTypeMulticast:
+ return "multicast"
+ case LinuxSLLPacketTypeOtherhost:
+ return "otherhost"
+ case LinuxSLLPacketTypeOutgoing:
+ return "outgoing"
+ case LinuxSLLPacketTypeLoopback:
+ return "loopback"
+ case LinuxSLLPacketTypeFastroute:
+ return "fastroute"
+ }
+ return fmt.Sprintf("Unknown(%d)", int(l))
+}
+
+type LinuxSLL struct {
+ BaseLayer
+ PacketType LinuxSLLPacketType
+ AddrLen uint16
+ Addr net.HardwareAddr
+ EthernetType EthernetType
+ AddrType uint16
+}
+
+// LayerType returns LayerTypeLinuxSLL.
+func (sll *LinuxSLL) LayerType() gopacket.LayerType { return LayerTypeLinuxSLL }
+
+func (sll *LinuxSLL) CanDecode() gopacket.LayerClass {
+ return LayerTypeLinuxSLL
+}
+
+func (sll *LinuxSLL) LinkFlow() gopacket.Flow {
+ return gopacket.NewFlow(EndpointMAC, sll.Addr, nil)
+}
+
+func (sll *LinuxSLL) NextLayerType() gopacket.LayerType {
+ return sll.EthernetType.LayerType()
+}
+
+func (sll *LinuxSLL) DecodeFromBytes(data []byte, df gopacket.DecodeFeedback) error {
+ if len(data) < 16 {
+ return errors.New("Linux SLL packet too small")
+ }
+ sll.PacketType = LinuxSLLPacketType(binary.BigEndian.Uint16(data[0:2]))
+ sll.AddrType = binary.BigEndian.Uint16(data[2:4])
+ sll.AddrLen = binary.BigEndian.Uint16(data[4:6])
+
+ sll.Addr = net.HardwareAddr(data[6 : sll.AddrLen+6])
+ sll.EthernetType = EthernetType(binary.BigEndian.Uint16(data[14:16]))
+ sll.BaseLayer = BaseLayer{data[:16], data[16:]}
+
+ return nil
+}
+
+func decodeLinuxSLL(data []byte, p gopacket.PacketBuilder) error {
+ sll := &LinuxSLL{}
+ if err := sll.DecodeFromBytes(data, p); err != nil {
+ return err
+ }
+ p.AddLayer(sll)
+ p.SetLinkLayer(sll)
+ return p.NextDecoder(sll.EthernetType)
+}