1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
// 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 (
"github.com/google/gopacket"
"testing"
)
// testPacketRadiotap0 is the packet:
// 09:34:34.799438 1.0 Mb/s 2412 MHz 11b -58dB signal antenna 7 Acknowledgment RA:88:1f:a1:ae:9d:cb
// 0x0000: 0000 1200 2e48 0000 1002 6c09 a000 c607 .....H....l.....
// 0x0010: 0000 d400 0000 881f a1ae 9dcb c630 4b4b .............0KK
var testPacketRadiotap0 = []byte{
0x00, 0x00, 0x12, 0x00, 0x2e, 0x48, 0x00, 0x00, 0x10, 0x02, 0x6c, 0x09, 0xa0, 0x00, 0xc6, 0x07,
0x00, 0x00, 0xd4, 0x00, 0x00, 0x00, 0x88, 0x1f, 0xa1, 0xae, 0x9d, 0xcb, 0xc6, 0x30, 0x4b, 0x4b,
}
func TestPacketRadiotap0(t *testing.T) {
p := gopacket.NewPacket(testPacketRadiotap0, LayerTypeRadioTap, gopacket.Default)
if p.ErrorLayer() != nil {
t.Error("Failed to decode packet:", p.ErrorLayer().Error())
}
checkLayers(p, []gopacket.LayerType{LayerTypeRadioTap, LayerTypeDot11}, t)
rt := p.Layer(LayerTypeRadioTap).(*RadioTap)
if rt.ChannelFrequency != 2412 || rt.DBMAntennaSignal != -58 || rt.Antenna != 7 {
t.Error("Radiotap decode error")
}
if rt.Rate != 2 { // 500Kbps unit
t.Error("Radiotap Rate decode error")
}
}
func BenchmarkDecodePacketRadiotap0(b *testing.B) {
for i := 0; i < b.N; i++ {
gopacket.NewPacket(testPacketRadiotap0, LayerTypeRadioTap, gopacket.NoCopy)
}
}
// testPacketRadiotap1 is the packet:
// 05:24:21.380948 2412 MHz 11g -36dB signal antenna 5 65.0 Mb/s MCS 7 20 MHz lon GI
// 0x0000: 0000 1500 2a48 0800 1000 6c09 8004 dc05 ....*H....l.....
// 0x0010: 0000 0700 0748 112c 0000 3a9d aaf0 191c .....H.,..:.....
// 0x0020: aba7 f213 9d00 3a9d aaf0 1970 b2ee a9f1 ......:....p....
// 0x0030: 16 .
var testPacketRadiotap1 = []byte{
0x00, 0x00, 0x15, 0x00, 0x2a, 0x48, 0x08, 0x00, 0x10, 0x00, 0x6c, 0x09, 0x80, 0x04, 0xdc, 0x05,
0x00, 0x00, 0x07, 0x00, 0x07, 0x48, 0x11, 0x2c, 0x00, 0x00, 0x3a, 0x9d, 0xaa, 0xf0, 0x19, 0x1c,
0xab, 0xa7, 0xf2, 0x13, 0x9d, 0x00, 0x3a, 0x9d, 0xaa, 0xf0, 0x19, 0x70, 0xb2, 0xee, 0xa9, 0xf1,
0x16,
}
func TestPacketRadiotap1(t *testing.T) {
p := gopacket.NewPacket(testPacketRadiotap1, LayerTypeRadioTap, gopacket.Default)
if p.ErrorLayer() != nil {
t.Error("Failed to decode packet:", p.ErrorLayer().Error())
}
checkLayers(p, []gopacket.LayerType{LayerTypeRadioTap, LayerTypeDot11}, t)
rt := p.Layer(LayerTypeRadioTap).(*RadioTap)
if rt.ChannelFrequency != 2412 || rt.DBMAntennaSignal != -36 || rt.Antenna != 5 {
t.Error("Radiotap decode error")
}
if !rt.MCS.Known.MCSIndex() || rt.MCS.MCS != 7 {
t.Error("Radiotap MCS error")
}
if !rt.MCS.Known.Bandwidth() || rt.MCS.Flags.Bandwidth() != 0 {
t.Error("Radiotap bandwidth error")
}
if !rt.MCS.Known.GuardInterval() || rt.MCS.Flags.ShortGI() {
t.Error("Radiotap GI error")
}
}
func BenchmarkDecodePacketRadiotap1(b *testing.B) {
for i := 0; i < b.N; i++ {
gopacket.NewPacket(testPacketRadiotap1, LayerTypeRadioTap, gopacket.NoCopy)
}
}
|
