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

   1 // Copyright 2017 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
   7 package layers
   8
   9 import (
  10         "github.com/google/gopacket"
  11         "reflect"
  12         "testing"
  13 )
  14
  15 // testPacketOSPF3Hello is the packet:
  16 //   14:43:11.663317 IP6 fe80::1 > ff02::5: OSPFv3, Hello, length 36
  17 //      0x0000:  3333 0000 0005 c200 1ffa 0001 86dd 6e00  33............n.
  18 //      0x0010:  0000 0024 5901 fe80 0000 0000 0000 0000  ...$Y...........
  19 //      0x0020:  0000 0000 0001 ff02 0000 0000 0000 0000  ................
  20 //      0x0030:  0000 0000 0005 0301 0024 0101 0101 0000  .........$......
  21 //      0x0040:  0001 fb86 0000 0000 0005 0100 0013 000a  ................
  22 //      0x0050:  0028 0000 0000 0000 0000                 .(........
  23 var testPacketOSPF3Hello = []byte{
  24         0x33, 0x33, 0x00, 0x00, 0x00, 0x05, 0xc2, 0x00, 0x1f, 0xfa, 0x00, 0x01, 0x86, 0xdd, 0x6e, 0x00,
  25         0x00, 0x00, 0x00, 0x24, 0x59, 0x01, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  26         0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  27         0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x03, 0x01, 0x00, 0x24, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
  28         0x00, 0x01, 0xfb, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x01, 0x00, 0x00, 0x13, 0x00, 0x0a,
  29         0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  30 }
  31
  32 func TestPacketOSPF3Hello(t *testing.T) {
  33         p := gopacket.NewPacket(testPacketOSPF3Hello, 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, LayerTypeOSPF}, t)
  38
  39         ospf := p.Layer(LayerTypeOSPF).(*OSPFv3)
  40         if ospf.Version != 3 {
  41                 t.Fatal("Invalid OSPF version")
  42         }
  43         if got, ok := p.Layer(LayerTypeOSPF).(*OSPFv3); ok {
  44                 want := &OSPFv3{
  45                         OSPF: OSPF{
  46                                 Version:      3,
  47                                 Type:         OSPFHello,
  48                                 PacketLength: 36,
  49                                 RouterID:     0x1010101,
  50                                 AreaID:       1,
  51                                 Checksum:     0xfb86,
  52                                 Content: HelloPkg{
  53                                         InterfaceID:              5,
  54                                         RtrPriority:              1,
  55                                         Options:                  0x000013,
  56                                         HelloInterval:            10,
  57                                         RouterDeadInterval:       40,
  58                                         DesignatedRouterID:       0,
  59                                         BackupDesignatedRouterID: 0,
  60                                 },
  61                         },
  62                         Instance: 0,
  63                         Reserved: 0,
  64                 }
  65                 if !reflect.DeepEqual(got, want) {
  66                         t.Errorf("OSPF packet processing failed:\ngot  :\n%#v\n\nwant :\n%#v\n\n", got, want)
  67                 }
  68         } else {
  69                 t.Error("No OSPF layer type found in packet")
  70         }
  71 }
  72 func BenchmarkDecodePacketPacket0(b *testing.B) {
  73         for i := 0; i < b.N; i++ {
  74                 gopacket.NewPacket(testPacketOSPF3Hello, LinkTypeEthernet, gopacket.NoCopy)
  75         }
  76 }
  77
  78 // testPacketOSPF3DBDesc is the packet:
  79 //   14:43:51.657571 IP6 fe80::2 > fe80::1: OSPFv3, Database Description, length 28
  80 //      0x0000:  c200 1ffa 0001 c201 1ffa 0001 86dd 6e00  ..............n.
  81 //      0x0010:  0000 001c 5901 fe80 0000 0000 0000 0000  ....Y...........
  82 //      0x0020:  0000 0000 0002 fe80 0000 0000 0000 0000  ................
  83 //      0x0030:  0000 0000 0001 0302 001c 0202 0202 0000  ................
  84 //      0x0040:  0001 d826 0000 0000 0013 05dc 0007 0000  ...&............
  85 //      0x0050:  1d46                                     .F
  86 var testPacketOSPF3DBDesc = []byte{
  87         0xc2, 0x00, 0x1f, 0xfa, 0x00, 0x01, 0xc2, 0x01, 0x1f, 0xfa, 0x00, 0x01, 0x86, 0xdd, 0x6e, 0x00,
  88         0x00, 0x00, 0x00, 0x1c, 0x59, 0x01, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  89         0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  90         0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x02, 0x00, 0x1c, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00,
  91         0x00, 0x01, 0xd8, 0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x05, 0xdc, 0x00, 0x07, 0x00, 0x00,
  92         0x1d, 0x46,
  93 }
  94
  95 func TestPacketOSPF3DBDesc(t *testing.T) {
  96         p := gopacket.NewPacket(testPacketOSPF3DBDesc, LinkTypeEthernet, gopacket.Default)
  97         if p.ErrorLayer() != nil {
  98                 t.Error("Failed to decode packet:", p.ErrorLayer().Error())
  99         }
 100         checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeIPv6, LayerTypeOSPF}, t)
 101         if got, ok := p.Layer(LayerTypeOSPF).(*OSPFv3); ok {
 102                 want := &OSPFv3{
 103                         OSPF: OSPF{
 104                                 Version:      3,
 105                                 Type:         OSPFDatabaseDescription,
 106                                 PacketLength: 28,
 107                                 RouterID:     0x2020202,
 108                                 AreaID:       1,
 109                                 Checksum:     0xd826,
 110                                 Content: DbDescPkg{
 111                                         Options:      0x000013,
 112                                         InterfaceMTU: 1500,
 113                                         Flags:        0x7,
 114                                         DDSeqNumber:  7494,
 115                                 },
 116                         },
 117                         Instance: 0,
 118                         Reserved: 0,
 119                 }
 120                 if !reflect.DeepEqual(got, want) {
 121                         t.Errorf("OSPF packet processing failed:\ngot  :\n%#v\n\nwant :\n%#v\n\n", got, want)
 122                 }
 123         } else {
 124                 t.Error("No OSPF layer type found in packet")
 125         }
 126 }
 127 func BenchmarkDecodePacketPacket1(b *testing.B) {
 128         for i := 0; i < b.N; i++ {
 129                 gopacket.NewPacket(testPacketOSPF3DBDesc, LinkTypeEthernet, gopacket.NoCopy)
 130         }
 131 }
 132
 133 // testPacketOSPF3LSRequest is the packet:
 134 //   14:43:51.673584 IP6 fe80::2 > fe80::1: OSPFv3, LS-Request, length 100
 135 //      0x0000:  c200 1ffa 0001 c201 1ffa 0001 86dd 6e00  ..............n.
 136 //      0x0010:  0000 0064 5901 fe80 0000 0000 0000 0000  ...dY...........
 137 //      0x0020:  0000 0000 0002 fe80 0000 0000 0000 0000  ................
 138 //      0x0030:  0000 0000 0001 0303 0064 0202 0202 0000  .........d......
 139 //      0x0040:  0001 2c9a 0000 0000 2001 0000 0000 0101  ..,.............
 140 //      0x0050:  0101 0000 2003 0000 0003 0101 0101 0000  ................
 141 //      0x0060:  2003 0000 0002 0101 0101 0000 2003 0000  ................
 142 //      0x0070:  0001 0101 0101 0000 2003 0000 0000 0101  ................
 143 //      0x0080:  0101 0000 0008 0000 0005 0101 0101 0000  ................
 144 //      0x0090:  2009 0000 0000 0101 0101                 ..........
 145 var testPacketOSPF3LSRequest = []byte{
 146         0xc2, 0x00, 0x1f, 0xfa, 0x00, 0x01, 0xc2, 0x01, 0x1f, 0xfa, 0x00, 0x01, 0x86, 0xdd, 0x6e, 0x00,
 147         0x00, 0x00, 0x00, 0x64, 0x59, 0x01, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 148         0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 149         0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x00, 0x64, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00,
 150         0x00, 0x01, 0x2c, 0x9a, 0x00, 0x00, 0x00, 0x00, 0x20, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
 151         0x01, 0x01, 0x00, 0x00, 0x20, 0x03, 0x00, 0x00, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
 152         0x20, 0x03, 0x00, 0x00, 0x00, 0x02, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x20, 0x03, 0x00, 0x00,
 153         0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x20, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
 154         0x01, 0x01, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x05, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
 155         0x20, 0x09, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01,
 156 }
 157
 158 func TestPacketOSPF3LSRequest(t *testing.T) {
 159         p := gopacket.NewPacket(testPacketOSPF3LSRequest, LinkTypeEthernet, gopacket.Default)
 160         if p.ErrorLayer() != nil {
 161                 t.Error("Failed to decode packet:", p.ErrorLayer().Error())
 162         }
 163         checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeIPv6, LayerTypeOSPF}, t)
 164         if got, ok := p.Layer(LayerTypeOSPF).(*OSPFv3); ok {
 165                 want := &OSPFv3{
 166                         OSPF: OSPF{
 167                                 Version:      3,
 168                                 Type:         OSPFLinkStateRequest,
 169                                 PacketLength: 100,
 170                                 RouterID:     0x2020202,
 171                                 AreaID:       1,
 172                                 Checksum:     0x2c9a,
 173                                 Content: []LSReq{
 174                                         LSReq{
 175                                                 LSType:    0x2001,
 176                                                 LSID:      0x00000000,
 177                                                 AdvRouter: 0x01010101,
 178                                         },
 179                                         LSReq{
 180                                                 LSType:    0x2003,
 181                                                 LSID:      0x00000003,
 182                                                 AdvRouter: 0x01010101,
 183                                         },
 184                                         LSReq{
 185                                                 LSType:    0x2003,
 186                                                 LSID:      0x00000002,
 187                                                 AdvRouter: 0x01010101,
 188                                         },
 189                                         LSReq{
 190                                                 LSType:    0x2003,
 191                                                 LSID:      0x00000001,
 192                                                 AdvRouter: 0x01010101,
 193                                         },
 194                                         LSReq{
 195                                                 LSType:    0x2003,
 196                                                 LSID:      0x00000000,
 197                                                 AdvRouter: 0x01010101,
 198                                         },
 199                                         LSReq{
 200                                                 LSType:    0x0008,
 201                                                 LSID:      0x00000005,
 202                                                 AdvRouter: 0x01010101,
 203                                         },
 204                                         LSReq{
 205                                                 LSType:    0x2009,
 206                                                 LSID:      0x00000000,
 207                                                 AdvRouter: 0x01010101,
 208                                         },
 209                                 },
 210                         },
 211                         Instance: 0,
 212                         Reserved: 0,
 213                 }
 214                 if !reflect.DeepEqual(got, want) {
 215                         t.Errorf("OSPF packet processing failed:\ngot  :\n%#v\n\nwant :\n%#v\n\n", got, want)
 216                 }
 217         } else {
 218                 t.Error("No OSPF layer type found in packet")
 219         }
 220 }
 221 func BenchmarkDecodePacketPacket2(b *testing.B) {
 222         for i := 0; i < b.N; i++ {
 223                 gopacket.NewPacket(testPacketOSPF3LSRequest, LinkTypeEthernet, gopacket.NoCopy)
 224         }
 225 }
 226
 227 // testPacketOSPF3LSUpdate is the packet:
 228 //   14:43:51.681554 IP6 fe80::1 > fe80::2: OSPFv3, LS-Update, length 288
 229 //      0x0000:  c201 1ffa 0001 c200 1ffa 0001 86dd 6e00  ..............n.
 230 //      0x0010:  0000 0120 5901 fe80 0000 0000 0000 0000  ....Y...........
 231 //      0x0020:  0000 0000 0001 fe80 0000 0000 0000 0000  ................
 232 //      0x0030:  0000 0000 0002 0304 0120 0101 0101 0000  ................
 233 //      0x0040:  0001 e556 0000 0000 0007 0028 2001 0000  ...V.......(....
 234 //      0x0050:  0000 0101 0101 8000 0002 d13a 0018 0100  ...........:....
 235 //      0x0060:  0033 0029 2003 0000 0003 0101 0101 8000  .3.)............
 236 //      0x0070:  0001 6259 0024 0000 004a 4000 0000 2001  ..bY.$...J@.....
 237 //      0x0080:  0db8 0000 0003 0029 2003 0000 0002 0101  .......)........
 238 //      0x0090:  0101 8000 0001 baf6 0024 0000 0054 4000  .........$...T@.
 239 //      0x00a0:  0000 2001 0db8 0000 0004 0029 2003 0000  ...........)....
 240 //      0x00b0:  0001 0101 0101 8000 0001 eba0 0024 0000  .............$..
 241 //      0x00c0:  004a 4000 0000 2001 0db8 0000 0034 0029  .J@..........4.)
 242 //      0x00d0:  2003 0000 0000 0101 0101 8000 0001 0ebd  ................
 243 //      0x00e0:  0024 0000 0040 4000 0000 2001 0db8 0000  .$...@@.........
 244 //      0x00f0:  0000 0023 0008 0000 0005 0101 0101 8000  ...#............
 245 //      0x0100:  0002 3d08 0038 0100 0033 fe80 0000 0000  ..=..8...3......
 246 //      0x0110:  0000 0000 0000 0000 0001 0000 0001 4000  ..............@.
 247 //      0x0120:  0000 2001 0db8 0000 0012 0023 2009 0000  ...........#....
 248 //      0x0130:  0000 0101 0101 8000 0001 e8d2 002c 0001  .............,..
 249 //      0x0140:  2001 0000 0000 0101 0101 4000 000a 2001  ..........@.....
 250 //      0x0150:  0db8 0000 0012                           ......
 251 var testPacketOSPF3LSUpdate = []byte{
 252         0xc2, 0x01, 0x1f, 0xfa, 0x00, 0x01, 0xc2, 0x00, 0x1f, 0xfa, 0x00, 0x01, 0x86, 0xdd, 0x6e, 0x00,
 253         0x00, 0x00, 0x01, 0x20, 0x59, 0x01, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 254         0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 255         0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x03, 0x04, 0x01, 0x20, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
 256         0x00, 0x01, 0xe5, 0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x28, 0x20, 0x01, 0x00, 0x00,
 257         0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x80, 0x00, 0x00, 0x02, 0xd1, 0x3a, 0x00, 0x18, 0x01, 0x00,
 258         0x00, 0x33, 0x00, 0x29, 0x20, 0x03, 0x00, 0x00, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x80, 0x00,
 259         0x00, 0x01, 0x62, 0x59, 0x00, 0x24, 0x00, 0x00, 0x00, 0x4a, 0x40, 0x00, 0x00, 0x00, 0x20, 0x01,
 260         0x0d, 0xb8, 0x00, 0x00, 0x00, 0x03, 0x00, 0x29, 0x20, 0x03, 0x00, 0x00, 0x00, 0x02, 0x01, 0x01,
 261         0x01, 0x01, 0x80, 0x00, 0x00, 0x01, 0xba, 0xf6, 0x00, 0x24, 0x00, 0x00, 0x00, 0x54, 0x40, 0x00,
 262         0x00, 0x00, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x04, 0x00, 0x29, 0x20, 0x03, 0x00, 0x00,
 263         0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x80, 0x00, 0x00, 0x01, 0xeb, 0xa0, 0x00, 0x24, 0x00, 0x00,
 264         0x00, 0x4a, 0x40, 0x00, 0x00, 0x00, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x34, 0x00, 0x29,
 265         0x20, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x80, 0x00, 0x00, 0x01, 0x0e, 0xbd,
 266         0x00, 0x24, 0x00, 0x00, 0x00, 0x40, 0x40, 0x00, 0x00, 0x00, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00,
 267         0x00, 0x00, 0x00, 0x23, 0x00, 0x08, 0x00, 0x00, 0x00, 0x05, 0x01, 0x01, 0x01, 0x01, 0x80, 0x00,
 268         0x00, 0x02, 0x3d, 0x08, 0x00, 0x38, 0x01, 0x00, 0x00, 0x33, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00,
 269         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x40, 0x00,
 270         0x00, 0x00, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x12, 0x00, 0x23, 0x20, 0x09, 0x00, 0x00,
 271         0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x80, 0x00, 0x00, 0x01, 0xe8, 0xd2, 0x00, 0x2c, 0x00, 0x01,
 272         0x20, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x40, 0x00, 0x00, 0x0a, 0x20, 0x01,
 273         0x0d, 0xb8, 0x00, 0x00, 0x00, 0x12,
 274 }
 275
 276 func TestPacketOSPF3LSUpdate(t *testing.T) {
 277         p := gopacket.NewPacket(testPacketOSPF3LSUpdate, LinkTypeEthernet, gopacket.Default)
 278         if p.ErrorLayer() != nil {
 279                 t.Error("Failed to decode packet:", p.ErrorLayer().Error())
 280         }
 281         checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeIPv6, LayerTypeOSPF}, t)
 282         if got, ok := p.Layer(LayerTypeOSPF).(*OSPFv3); ok {
 283                 want := &OSPFv3{
 284                         OSPF: OSPF{
 285                                 Version:      3,
 286                                 Type:         OSPFLinkStateUpdate,
 287                                 PacketLength: 288,
 288                                 RouterID:     0x1010101,
 289                                 AreaID:       1,
 290                                 Checksum:     0xe556,
 291                                 Content: LSUpdate{
 292                                         NumOfLSAs: 7,
 293                                         LSAs: []LSA{
 294                                                 LSA{
 295                                                         LSAheader: LSAheader{
 296                                                                 LSAge:       40,
 297                                                                 LSType:      0x2001,
 298                                                                 LinkStateID: 0x00000000,
 299                                                                 AdvRouter:   0x01010101,
 300                                                                 LSSeqNumber: 0x80000002,
 301                                                                 LSChecksum:  0xd13a,
 302                                                                 Length:      24,
 303                                                         },
 304                                                         Content: RouterLSA{
 305                                                                 Flags:   0x1,
 306                                                                 Options: 0x33,
 307                                                         },
 308                                                 },
 309                                                 LSA{
 310                                                         LSAheader: LSAheader{
 311                                                                 LSAge:       41,
 312                                                                 LSType:      0x2003,
 313                                                                 LinkStateID: 0x00000003,
 314                                                                 AdvRouter:   0x01010101,
 315                                                                 LSSeqNumber: 0x80000001,
 316                                                                 LSChecksum:  0x6259,
 317                                                                 Length:      36,
 318                                                         },
 319                                                         Content: InterAreaPrefixLSA{
 320                                                                 Metric:        74,
 321                                                                 PrefixLength:  64,
 322                                                                 PrefixOptions: 0,
 323                                                                 AddressPrefix: []byte{0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x03},
 324                                                         },
 325                                                 },
 326                                                 LSA{
 327                                                         LSAheader: LSAheader{
 328                                                                 LSAge:       41,
 329                                                                 LSType:      0x2003,
 330                                                                 LinkStateID: 0x00000002,
 331                                                                 AdvRouter:   0x01010101,
 332                                                                 LSSeqNumber: 0x80000001,
 333                                                                 LSChecksum:  0xbaf6,
 334                                                                 Length:      36,
 335                                                         },
 336                                                         Content: InterAreaPrefixLSA{
 337                                                                 Metric:        84,
 338                                                                 PrefixLength:  64,
 339                                                                 PrefixOptions: 0,
 340                                                                 AddressPrefix: []byte{0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x4},
 341                                                         },
 342                                                 },
 343                                                 LSA{
 344                                                         LSAheader: LSAheader{
 345                                                                 LSAge:       41,
 346                                                                 LSType:      0x2003,
 347                                                                 LinkStateID: 0x00000001,
 348                                                                 AdvRouter:   0x01010101,
 349                                                                 LSSeqNumber: 0x80000001,
 350                                                                 LSChecksum:  0xeba0,
 351                                                                 Length:      36,
 352                                                         },
 353                                                         Content: InterAreaPrefixLSA{
 354                                                                 Metric:        74,
 355                                                                 PrefixLength:  64,
 356                                                                 PrefixOptions: 0,
 357                                                                 AddressPrefix: []byte{0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x34},
 358                                                         },
 359                                                 },
 360                                                 LSA{
 361                                                         LSAheader: LSAheader{
 362                                                                 LSAge:       41,
 363                                                                 LSType:      0x2003,
 364                                                                 LinkStateID: 0x00000000,
 365                                                                 AdvRouter:   0x01010101,
 366                                                                 LSSeqNumber: 0x80000001,
 367                                                                 LSChecksum:  0xebd,
 368                                                                 Length:      36,
 369                                                         },
 370                                                         Content: InterAreaPrefixLSA{
 371                                                                 Metric:        64,
 372                                                                 PrefixLength:  64,
 373                                                                 PrefixOptions: 0,
 374                                                                 AddressPrefix: []byte{0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x0},
 375                                                         },
 376                                                 },
 377                                                 LSA{
 378                                                         LSAheader: LSAheader{
 379                                                                 LSAge:       35,
 380                                                                 LSType:      0x8,
 381                                                                 LinkStateID: 0x00000005,
 382                                                                 AdvRouter:   0x01010101,
 383                                                                 LSSeqNumber: 0x80000002,
 384                                                                 LSChecksum:  0x3d08,
 385                                                                 Length:      56,
 386                                                         },
 387                                                         Content: LinkLSA{
 388                                                                 RtrPriority:      1,
 389                                                                 Options:          0x33,
 390                                                                 LinkLocalAddress: []byte{0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
 391                                                                 NumOfPrefixes:    1,
 392                                                                 Prefixes: []Prefix{
 393                                                                         Prefix{
 394                                                                                 PrefixLength:  64,
 395                                                                                 PrefixOptions: 0,
 396                                                                                 AddressPrefix: []byte{0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x12},
 397                                                                         },
 398                                                                 },
 399                                                         },
 400                                                 },
 401                                                 LSA{
 402                                                         LSAheader: LSAheader{
 403                                                                 LSAge:       35,
 404                                                                 LSType:      0x2009,
 405                                                                 LinkStateID: 0x00000000,
 406                                                                 AdvRouter:   0x01010101,
 407                                                                 LSSeqNumber: 0x80000001,
 408                                                                 LSChecksum:  0xe8d2,
 409                                                                 Length:      44,
 410                                                         },
 411                                                         Content: IntraAreaPrefixLSA{
 412                                                                 NumOfPrefixes: 1,
 413                                                                 RefLSType:     0x2001,
 414                                                                 RefAdvRouter:  0x01010101,
 415                                                                 Prefixes: []Prefix{
 416                                                                         Prefix{
 417                                                                                 PrefixLength:  64,
 418                                                                                 PrefixOptions: 0,
 419                                                                                 Metric:        10,
 420                                                                                 AddressPrefix: []byte{0x20, 0x1, 0xd, 0xb8, 0x0, 0x0, 0x0, 0x12},
 421                                                                         },
 422                                                                 },
 423                                                         },
 424                                                 },
 425                                         },
 426                                 },
 427                         },
 428                         Instance: 0,
 429                         Reserved: 0,
 430                 }
 431                 if !reflect.DeepEqual(got, want) {
 432                         t.Errorf("OSPF packet processing failed:\ngot  :\n%#v\n\nwant :\n%#v\n\n", got, want)
 433                 }
 434         } else {
 435                 t.Error("No OSPF layer type found in packet")
 436         }
 437 }
 438 func BenchmarkDecodePacketPacket3(b *testing.B) {
 439         for i := 0; i < b.N; i++ {
 440                 gopacket.NewPacket(testPacketOSPF3LSUpdate, LinkTypeEthernet, gopacket.NoCopy)
 441         }
 442 }
 443
 444 // testPacketOSPF3LSAck is the packet:
 445 //   14:43:54.185384 IP6 fe80::1 > ff02::5: OSPFv3, LS-Ack, length 136
 446 //      0x0000:  3333 0000 0005 c200 1ffa 0001 86dd 6e00  33............n.
 447 //      0x0010:  0000 0088 5901 fe80 0000 0000 0000 0000  ....Y...........
 448 //      0x0020:  0000 0000 0001 ff02 0000 0000 0000 0000  ................
 449 //      0x0030:  0000 0000 0005 0305 0088 0101 0101 0000  ................
 450 //      0x0040:  0001 9d2c 0000 0005 2001 0000 0000 0202  ...,............
 451 //      0x0050:  0202 8000 0002 b354 0018 0006 2003 0000  .......T........
 452 //      0x0060:  0003 0202 0202 8000 0001 4473 0024 0006  ..........Ds.$..
 453 //      0x0070:  2003 0000 0002 0202 0202 8000 0001 9c11  ................
 454 //      0x0080:  0024 0006 2003 0000 0001 0202 0202 8000  .$..............
 455 //      0x0090:  0001 cdba 0024 0006 2003 0000 0000 0202  .....$..........
 456 //      0x00a0:  0202 8000 0001 efd7 0024 0005 0008 0000  .........$......
 457 //      0x00b0:  0005 0202 0202 8000 0001 5433 002c       ..........T3.,
 458 var testPacketOSPF3LSAck = []byte{
 459         0x33, 0x33, 0x00, 0x00, 0x00, 0x05, 0xc2, 0x00, 0x1f, 0xfa, 0x00, 0x01, 0x86, 0xdd, 0x6e, 0x00,
 460         0x00, 0x00, 0x00, 0x88, 0x59, 0x01, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 461         0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 462         0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x03, 0x05, 0x00, 0x88, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,
 463         0x00, 0x01, 0x9d, 0x2c, 0x00, 0x00, 0x00, 0x05, 0x20, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x02,
 464         0x02, 0x02, 0x80, 0x00, 0x00, 0x02, 0xb3, 0x54, 0x00, 0x18, 0x00, 0x06, 0x20, 0x03, 0x00, 0x00,
 465         0x00, 0x03, 0x02, 0x02, 0x02, 0x02, 0x80, 0x00, 0x00, 0x01, 0x44, 0x73, 0x00, 0x24, 0x00, 0x06,
 466         0x20, 0x03, 0x00, 0x00, 0x00, 0x02, 0x02, 0x02, 0x02, 0x02, 0x80, 0x00, 0x00, 0x01, 0x9c, 0x11,
 467         0x00, 0x24, 0x00, 0x06, 0x20, 0x03, 0x00, 0x00, 0x00, 0x01, 0x02, 0x02, 0x02, 0x02, 0x80, 0x00,
 468         0x00, 0x01, 0xcd, 0xba, 0x00, 0x24, 0x00, 0x06, 0x20, 0x03, 0x00, 0x00, 0x00, 0x00, 0x02, 0x02,
 469         0x02, 0x02, 0x80, 0x00, 0x00, 0x01, 0xef, 0xd7, 0x00, 0x24, 0x00, 0x05, 0x00, 0x08, 0x00, 0x00,
 470         0x00, 0x05, 0x02, 0x02, 0x02, 0x02, 0x80, 0x00, 0x00, 0x01, 0x54, 0x33, 0x00, 0x2c,
 471 }
 472
 473 func TestPacketOSPF3LSAck(t *testing.T) {
 474         p := gopacket.NewPacket(testPacketOSPF3LSAck, LinkTypeEthernet, gopacket.Default)
 475         if p.ErrorLayer() != nil {
 476                 t.Error("Failed to decode packet:", p.ErrorLayer().Error())
 477         }
 478         checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeIPv6, LayerTypeOSPF}, t)
 479         if got, ok := p.Layer(LayerTypeOSPF).(*OSPFv3); ok {
 480                 want := &OSPFv3{
 481                         OSPF: OSPF{
 482                                 Version:      3,
 483                                 Type:         OSPFLinkStateAcknowledgment,
 484                                 PacketLength: 136,
 485                                 RouterID:     0x1010101,
 486                                 AreaID:       1,
 487                                 Checksum:     0x9d2c,
 488                                 Content: []LSAheader{
 489                                         LSAheader{
 490                                                 LSAge:       5,
 491                                                 LSType:      0x2001,
 492                                                 LinkStateID: 0x00000000,
 493                                                 AdvRouter:   0x02020202,
 494                                                 LSSeqNumber: 0x80000002,
 495                                                 LSChecksum:  0xb354,
 496                                                 Length:      24,
 497                                         },
 498                                         LSAheader{
 499                                                 LSAge:       6,
 500                                                 LSType:      0x2003,
 501                                                 LinkStateID: 0x00000003,
 502                                                 AdvRouter:   0x02020202,
 503                                                 LSSeqNumber: 0x80000001,
 504                                                 LSChecksum:  0x4473,
 505                                                 Length:      36,
 506                                         },
 507                                         LSAheader{
 508                                                 LSAge:       6,
 509                                                 LSType:      0x2003,
 510                                                 LinkStateID: 0x00000002,
 511                                                 AdvRouter:   0x02020202,
 512                                                 LSSeqNumber: 0x80000001,
 513                                                 LSChecksum:  0x9c11,
 514                                                 Length:      36,
 515                                         },
 516                                         LSAheader{
 517                                                 LSAge:       6,
 518                                                 LSType:      0x2003,
 519                                                 LinkStateID: 0x00000001,
 520                                                 AdvRouter:   0x02020202,
 521                                                 LSSeqNumber: 0x80000001,
 522                                                 LSChecksum:  0xcdba,
 523                                                 Length:      36,
 524                                         },
 525                                         LSAheader{
 526                                                 LSAge:       6,
 527                                                 LSType:      0x2003,
 528                                                 LinkStateID: 0x00000000,
 529                                                 AdvRouter:   0x02020202,
 530                                                 LSSeqNumber: 0x80000001,
 531                                                 LSChecksum:  0xefd7,
 532                                                 Length:      36,
 533                                         },
 534                                         LSAheader{
 535                                                 LSAge:       5,
 536                                                 LSType:      0x0008,
 537                                                 LinkStateID: 0x00000005,
 538                                                 AdvRouter:   0x02020202,
 539                                                 LSSeqNumber: 0x80000001,
 540                                                 LSChecksum:  0x5433,
 541                                                 Length:      44,
 542                                         },
 543                                 },
 544                         },
 545                         Instance: 0,
 546                         Reserved: 0,
 547                 }
 548                 if !reflect.DeepEqual(got, want) {
 549                         t.Errorf("OSPF packet processing failed:\ngot  :\n%#v\n\nwant :\n%#v\n\n", got, want)
 550                 }
 551         } else {
 552                 t.Error("No OSPF layer type found in packet")
 553         }
 554 }
 555 func BenchmarkDecodePacketPacket4(b *testing.B) {
 556         for i := 0; i < b.N; i++ {
 557                 gopacket.NewPacket(testPacketOSPF3LSAck, LinkTypeEthernet, gopacket.NoCopy)
 558         }
 559 }