github.com/gopacket/gopacket@v1.1.0/layers/radiotap_test.go (about)

     1  // Copyright 2012 Google, Inc. All rights reserved.
     2  //
     3  // Use of this source code is governed by a BSD-style license
     4  // that can be found in the LICENSE file in the root of the source
     5  // tree.
     6  package layers
     7  
     8  import (
     9  	"testing"
    10  
    11  	"github.com/gopacket/gopacket"
    12  )
    13  
    14  // testPacketRadiotap0 is the packet:
    15  //
    16  //	09:34:34.799438 1.0 Mb/s 2412 MHz 11b -58dB signal antenna 7 Acknowledgment RA:88:1f:a1:ae:9d:cb
    17  //	   0x0000:  0000 1200 2e48 0000 1002 6c09 a000 c607  .....H....l.....
    18  //	   0x0010:  0000 d400 0000 881f a1ae 9dcb c630 4b4b  .............0KK
    19  var testPacketRadiotap0 = []byte{
    20  	0x00, 0x00, 0x12, 0x00, 0x2e, 0x48, 0x00, 0x00, 0x10, 0x02, 0x6c, 0x09, 0xa0, 0x00, 0xc6, 0x07,
    21  	0x00, 0x00, 0xd4, 0x00, 0x00, 0x00, 0x88, 0x1f, 0xa1, 0xae, 0x9d, 0xcb, 0xc6, 0x30, 0x4b, 0x4b,
    22  }
    23  
    24  func TestPacketRadiotap0(t *testing.T) {
    25  	p := gopacket.NewPacket(testPacketRadiotap0, LayerTypeRadioTap, gopacket.Default)
    26  	if p.ErrorLayer() != nil {
    27  		t.Error("Failed to decode packet:", p.ErrorLayer().Error())
    28  	}
    29  	checkLayers(p, []gopacket.LayerType{LayerTypeRadioTap, LayerTypeDot11}, t)
    30  	rt := p.Layer(LayerTypeRadioTap).(*RadioTap)
    31  	if rt.ChannelFrequency != 2412 || rt.DBMAntennaSignal != -58 || rt.Antenna != 7 {
    32  		t.Error("Radiotap decode error")
    33  	}
    34  	if rt.Rate != 2 { // 500Kbps unit
    35  		t.Error("Radiotap Rate decode error")
    36  	}
    37  }
    38  func BenchmarkDecodePacketRadiotap0(b *testing.B) {
    39  	for i := 0; i < b.N; i++ {
    40  		gopacket.NewPacket(testPacketRadiotap0, LayerTypeRadioTap, gopacket.NoCopy)
    41  	}
    42  }
    43  
    44  // testPacketRadiotap1 is the packet:
    45  //
    46  //	05:24:21.380948 2412 MHz 11g -36dB signal antenna 5 65.0 Mb/s MCS 7 20 MHz lon GI
    47  //		0x0000:  0000 1500 2a48 0800 1000 6c09 8004 dc05  ....*H....l.....
    48  //		0x0010:  0000 0700 0748 112c 0000 3a9d aaf0 191c  .....H.,..:.....
    49  //		0x0020:  aba7 f213 9d00 3a9d aaf0 1970 b2ee a9f1  ......:....p....
    50  //		0x0030:  16                                       .
    51  var testPacketRadiotap1 = []byte{
    52  	0x00, 0x00, 0x15, 0x00, 0x2a, 0x48, 0x08, 0x00, 0x10, 0x00, 0x6c, 0x09, 0x80, 0x04, 0xdc, 0x05,
    53  	0x00, 0x00, 0x07, 0x00, 0x07, 0x48, 0x11, 0x2c, 0x00, 0x00, 0x3a, 0x9d, 0xaa, 0xf0, 0x19, 0x1c,
    54  	0xab, 0xa7, 0xf2, 0x13, 0x9d, 0x00, 0x3a, 0x9d, 0xaa, 0xf0, 0x19, 0x70, 0xb2, 0xee, 0xa9, 0xf1,
    55  	0x16,
    56  }
    57  
    58  func TestPacketRadiotap1(t *testing.T) {
    59  	p := gopacket.NewPacket(testPacketRadiotap1, LayerTypeRadioTap, gopacket.Default)
    60  	if p.ErrorLayer() != nil {
    61  		t.Error("Failed to decode packet:", p.ErrorLayer().Error())
    62  	}
    63  	checkLayers(p, []gopacket.LayerType{LayerTypeRadioTap, LayerTypeDot11}, t)
    64  	rt := p.Layer(LayerTypeRadioTap).(*RadioTap)
    65  	if rt.ChannelFrequency != 2412 || rt.DBMAntennaSignal != -36 || rt.Antenna != 5 {
    66  		t.Error("Radiotap decode error")
    67  	}
    68  	if !rt.MCS.Known.MCSIndex() || rt.MCS.MCS != 7 {
    69  		t.Error("Radiotap MCS error")
    70  	}
    71  	if !rt.MCS.Known.Bandwidth() || rt.MCS.Flags.Bandwidth() != 0 {
    72  		t.Error("Radiotap bandwidth error")
    73  	}
    74  	if !rt.MCS.Known.GuardInterval() || rt.MCS.Flags.ShortGI() {
    75  		t.Error("Radiotap GI error")
    76  	}
    77  }
    78  func BenchmarkDecodePacketRadiotap1(b *testing.B) {
    79  	for i := 0; i < b.N; i++ {
    80  		gopacket.NewPacket(testPacketRadiotap1, LayerTypeRadioTap, gopacket.NoCopy)
    81  	}
    82  }