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// Copyright 2016 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 (
"reflect"
"testing"
"github.com/google/gopacket"
)
// testPacketMPLS
// Ethernet II, Src: cc:15:14:64:00:00 (cc:15:14:64:00:00), Dst: cc:13:14:64:00:01 (cc:13:14:64:00:01)
// MultiProtocol Label Switching Header, Label: 17, Exp: 0, S: 0, TTL: 254
// MultiProtocol Label Switching Header, Label: 19, Exp: 0, S: 1, TTL: 254
// Internet Protocol Version 4, Src: 12.0.0.1, Dst: 2.2.2.2
// Internet Control Message Protocol
// 0000 cc 13 14 64 00 01 cc 15 14 64 00 00 88 47 00 01 ...d.....d...G..
// 0010 10 fe 00 01 31 fe 45 00 00 64 00 39 00 00 fe 01 ....1.E..d.9....
// 0020 ac 5b 0c 00 00 01 02 02 02 02 08 00 3a 6b 00 0b .[..........:k..
// 0030 00 02 00 00 00 00 00 3e 43 94 ab cd ab cd ab cd .......>C.......
// 0040 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................
// 0050 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................
// 0060 ab cd ab cd ab cd ab cd ab cd ab cd ab cd ab cd ................
// 0070 ab cd ab cd ab cd ab cd ab cd ..........
var testPacketMPLS = []byte{
0xcc, 0x13, 0x14, 0x64, 0x00, 0x01, 0xcc, 0x15, 0x14, 0x64, 0x00, 0x00, 0x88, 0x47, 0x00, 0x01,
0x10, 0xfe, 0x00, 0x01, 0x31, 0xfe, 0x45, 0x00, 0x00, 0x64, 0x00, 0x39, 0x00, 0x00, 0xfe, 0x01,
0xac, 0x5b, 0x0c, 0x00, 0x00, 0x01, 0x02, 0x02, 0x02, 0x02, 0x08, 0x00, 0x3a, 0x6b, 0x00, 0x0b,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x43, 0x94, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
}
func TestPacketMPLS(t *testing.T) {
p := gopacket.NewPacket(testPacketMPLS, LinkTypeEthernet, gopacket.Default)
if p.ErrorLayer() != nil {
t.Error("Failed to decode packet:", p.ErrorLayer().Error())
}
checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeMPLS, LayerTypeMPLS, LayerTypeIPv4, LayerTypeICMPv4, gopacket.LayerTypePayload}, t)
if got, ok := p.Layers()[1].(*MPLS); ok {
want := &MPLS{
BaseLayer: BaseLayer{
Contents: []byte{0x00, 0x01, 0x10, 0xfe},
Payload: []byte{0x00, 0x01, 0x31, 0xfe, 0x45, 0x00, 0x00, 0x64, 0x00, 0x39, 0x00, 0x00, 0xfe, 0x01,
0xac, 0x5b, 0x0c, 0x00, 0x00, 0x01, 0x02, 0x02, 0x02, 0x02, 0x08, 0x00, 0x3a, 0x6b, 0x00, 0x0b,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x43, 0x94, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd},
},
Label: 17,
TrafficClass: 0,
StackBottom: false,
TTL: 254,
}
if !reflect.DeepEqual(want, got) {
t.Errorf("MPLS layer 1 mismatch, \nwant %#v\ngot %#v\n", want, got)
}
}
if got, ok := p.Layers()[2].(*MPLS); ok {
want := &MPLS{
BaseLayer: BaseLayer{
Contents: []byte{0x00, 0x01, 0x31, 0xfe},
Payload: []byte{0x45, 0x00, 0x00, 0x64, 0x00, 0x39, 0x00, 0x00, 0xfe, 0x01,
0xac, 0x5b, 0x0c, 0x00, 0x00, 0x01, 0x02, 0x02, 0x02, 0x02, 0x08, 0x00, 0x3a, 0x6b, 0x00, 0x0b,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x43, 0x94, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd},
},
Label: 19,
TrafficClass: 0,
StackBottom: true,
TTL: 254,
}
if !reflect.DeepEqual(want, got) {
t.Errorf("MPLS layer 2 mismatch, \nwant %#v\ngot %#v\n", want, got)
}
}
}
func BenchmarkDecodePacketMPLS(b *testing.B) {
for i := 0; i < b.N; i++ {
gopacket.NewPacket(testPacketMPLS, LinkTypeEthernet, gopacket.NoCopy)
}
}
|
