vendor/github.com/google/gopacket/layers/icmp6_test.go

   1 // Copyright 2012, Google, Inc. All rights reserved.
   2 // Copyright 2009-2011 Andreas Krennmair. All rights reserved.
   3 //
   4 // Use of this source code is governed by a BSD-style license
   5 // that can be found in the LICENSE file in the root of the source
   6 // tree.
   7
   8 package layers
   9
  10 import (
  11         "github.com/google/gopacket"
  12         "net"
  13         "reflect"
  14         "testing"
  15 )
  16
  17 // testPacketICMPv6 is the packet:
  18 //   10:48:30.088384 IP6 2620:0:1005:0:26be:5ff:fe27:b17 > fe80::21f:caff:feb3:7640: ICMP6, neighbor advertisement, tgt is 2620:0:1005:0:26be:5ff:fe27:b17, length 24
  19 //      0x0000:  001f cab3 7640 24be 0527 0b17 86dd 6000  ....v@$..'....`.
  20 //      0x0010:  0000 0018 3aff 2620 0000 1005 0000 26be  ....:.&.......&.
  21 //      0x0020:  05ff fe27 0b17 fe80 0000 0000 0000 021f  ...'............
  22 //      0x0030:  caff feb3 7640 8800 1ed6 4000 0000 2620  ....v@....@...&.
  23 //      0x0040:  0000 1005 0000 26be 05ff fe27 0b17       ......&....'..
  24 var testPacketICMPv6 = []byte{
  25         0x00, 0x1f, 0xca, 0xb3, 0x76, 0x40, 0x24, 0xbe, 0x05, 0x27, 0x0b, 0x17, 0x86, 0xdd, 0x60, 0x00,
  26         0x00, 0x00, 0x00, 0x18, 0x3a, 0xff, 0x26, 0x20, 0x00, 0x00, 0x10, 0x05, 0x00, 0x00, 0x26, 0xbe,
  27         0x05, 0xff, 0xfe, 0x27, 0x0b, 0x17, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x1f,
  28         0xca, 0xff, 0xfe, 0xb3, 0x76, 0x40, 0x88, 0x00, 0x1e, 0xd6, 0x40, 0x00, 0x00, 0x00, 0x26, 0x20,
  29         0x00, 0x00, 0x10, 0x05, 0x00, 0x00, 0x26, 0xbe, 0x05, 0xff, 0xfe, 0x27, 0x0b, 0x17,
  30 }
  31
  32 func TestPacketICMPv6(t *testing.T) {
  33         p := gopacket.NewPacket(testPacketICMPv6, LinkTypeEthernet, gopacket.Default)
  34         if p.ErrorLayer() != nil {
  35                 t.Error("Failed to decode packet:", p.ErrorLayer().Error())
  36         }
  37         checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeIPv6, LayerTypeICMPv6, gopacket.LayerTypePayload}, t)
  38         if got, ok := p.Layer(LayerTypeIPv6).(*IPv6); ok {
  39                 want := &IPv6{
  40                         BaseLayer: BaseLayer{
  41                                 Contents: []byte{0x60, 0x0, 0x0, 0x0, 0x0, 0x18,
  42                                         0x3a, 0xff, 0x26, 0x20, 0x0, 0x0, 0x10, 0x5, 0x0, 0x0, 0x26, 0xbe, 0x5,
  43                                         0xff, 0xfe, 0x27, 0xb, 0x17, 0xfe, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
  44                                         0x2, 0x1f, 0xca, 0xff, 0xfe, 0xb3, 0x76, 0x40},
  45                                 Payload: []byte{0x88, 0x0, 0x1e, 0xd6, 0x40, 0x0, 0x0, 0x0, 0x26, 0x20,
  46                                         0x0, 0x0, 0x10, 0x5, 0x0, 0x0, 0x26, 0xbe, 0x5, 0xff, 0xfe, 0x27, 0xb,
  47                                         0x17},
  48                         },
  49                         Version:      6,
  50                         TrafficClass: 0,
  51                         FlowLabel:    0,
  52                         Length:       24,
  53                         NextHeader:   IPProtocolICMPv6,
  54                         HopLimit:     255,
  55                         SrcIP:        net.IP{0x26, 0x20, 0x0, 0x0, 0x10, 0x5, 0x0, 0x0, 0x26, 0xbe, 0x5, 0xff, 0xfe, 0x27, 0xb, 0x17},
  56                         DstIP:        net.IP{0xfe, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x1f, 0xca, 0xff, 0xfe, 0xb3, 0x76, 0x40},
  57                 }
  58                 if !reflect.DeepEqual(got, want) {
  59                         t.Errorf("IPv6 packet processing failed:\ngot  :\n%#v\n\nwant :\n%#v\n\n", got, want)
  60                 }
  61         } else {
  62                 t.Error("No IPv6 layer type found in packet")
  63         }
  64         if got, ok := p.Layer(LayerTypeICMPv6).(*ICMPv6); ok {
  65                 want := &ICMPv6{
  66                         BaseLayer: BaseLayer{
  67                                 Contents: []byte{0x88, 0x0, 0x1e, 0xd6, 0x40, 0x0, 0x0, 0x0},
  68                                 Payload: []byte{0x26, 0x20, 0x0, 0x0, 0x10,
  69                                         0x5, 0x0, 0x0, 0x26, 0xbe, 0x5, 0xff, 0xfe, 0x27, 0xb, 0x17},
  70                         },
  71                         TypeCode:  0x8800,
  72                         Checksum:  0x1ed6,
  73                         TypeBytes: []byte{0x40, 0x0, 0x0, 0x0},
  74                 }
  75                 if !reflect.DeepEqual(got, want) {
  76                         t.Errorf("ICMPv6 packet processing failed:\ngot  :\n%#v\n\nwant :\n%#v\n\n", got, want)
  77                 }
  78                 if got.TypeCode.String() != "NeighborAdvertisement" {
  79                         t.Errorf("ICMPv6 type code, got %q want 'NeighborAdvertisement'", got.TypeCode.String())
  80                 }
  81         } else {
  82                 t.Error("No ICMPv6 layer type found in packet")
  83         }
  84 }