diff options
Diffstat (limited to 'vendor/github.com/google/gopacket/layers/vxlan_test.go')
| -rw-r--r-- | vendor/github.com/google/gopacket/layers/vxlan_test.go | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/vendor/github.com/google/gopacket/layers/vxlan_test.go b/vendor/github.com/google/gopacket/layers/vxlan_test.go new file mode 100644 index 0000000..a02d934 --- /dev/null +++ b/vendor/github.com/google/gopacket/layers/vxlan_test.go @@ -0,0 +1,108 @@ +// 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 ( + "github.com/google/gopacket" + "reflect" + "testing" +) + +// VXLAN is specifed in RFC 7348 +// 0 1 2 3 +// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +// 0 8 16 24 32 +// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +// |G|R|R|R|I|R|R|R|R|D|R|R|A|R|R|R| Group Policy ID | +// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +// | 24 bit VXLAN Network Identifier | Reserved | +// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + +// Ethernet[IP[UDP[VXLAN[Ethernet[IP[ICMP]]]]]] + +// testPacketVXLAN +// 0000 00 16 3e 08 71 cf 36 dc 85 1e b3 40 08 00 45 00 ..>.q.6....@..E. +// 0010 00 86 d2 c0 40 00 40 11 51 52 c0 a8 cb 01 c0 a8 ....@.@.QR...... +// 0020 ca 01 b0 5d 12 b5 00 72 00 00 08 00 00 00 00 00 ...]...r........ +// 0030 00 00 00 30 88 01 00 02 00 16 3e 37 f6 04 08 00 ...0......>7.... +// 0040 45 00 00 54 00 00 40 00 40 01 23 4f c0 a8 cb 03 E..T..@.@.#O.... +// 0050 c0 a8 cb 05 08 00 f6 f2 05 0c 00 01 fc e2 97 51 ...............Q +// 0060 00 00 00 00 a6 f8 02 00 00 00 00 00 10 11 12 13 ................ +// 0070 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 ............ !"# +// 0080 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 $%&'()*+,-./0123 +// 0090 34 35 36 37 4567 ./01234567 +var testPacketVXLAN = []byte{ + 0x00, 0x16, 0x3e, 0x08, 0x71, 0xcf, 0x36, 0xdc, 0x85, 0x1e, 0xb3, 0x40, 0x08, 0x00, 0x45, 0x00, + 0x00, 0x86, 0xd2, 0xc0, 0x40, 0x00, 0x40, 0x11, 0x51, 0x52, 0xc0, 0xa8, 0xcb, 0x01, 0xc0, 0xa8, + 0xca, 0x01, 0xb0, 0x5d, 0x12, 0xb5, 0x00, 0x72, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xff, 0x00, 0x00, 0x30, 0x88, 0x01, 0x00, 0x02, 0x00, 0x16, 0x3e, 0x37, 0xf6, 0x04, 0x08, 0x00, + 0x45, 0x00, 0x00, 0x54, 0x00, 0x00, 0x40, 0x00, 0x40, 0x01, 0x23, 0x4f, 0xc0, 0xa8, 0xcb, 0x03, + 0xc0, 0xa8, 0xcb, 0x05, 0x08, 0x00, 0xf6, 0xf2, 0x05, 0x0c, 0x00, 0x01, 0xfc, 0xe2, 0x97, 0x51, + 0x00, 0x00, 0x00, 0x00, 0xa6, 0xf8, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x12, 0x13, + 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, + 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, + 0x34, 0x35, 0x36, 0x37, +} + +func TestPacketVXLAN(t *testing.T) { + p := gopacket.NewPacket(testPacketVXLAN, LinkTypeEthernet, gopacket.Default) + if p.ErrorLayer() != nil { + t.Error("Failed to decode packet:", p.ErrorLayer().Error()) + } + checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeIPv4, LayerTypeUDP, LayerTypeVXLAN, LayerTypeEthernet, LayerTypeIPv4, LayerTypeICMPv4, gopacket.LayerTypePayload}, t) + if got, ok := p.Layer(LayerTypeVXLAN).(*VXLAN); ok { + want := &VXLAN{ + BaseLayer: BaseLayer{ + Contents: []byte{0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00}, + Payload: []byte{0x00, 0x30, 0x88, 0x01, 0x00, 0x02, 0x00, 0x16, 0x3e, 0x37, 0xf6, 0x04, 0x08, 0x00, + 0x45, 0x00, 0x00, 0x54, 0x00, 0x00, 0x40, 0x00, 0x40, 0x01, 0x23, 0x4f, 0xc0, 0xa8, 0xcb, 0x03, + 0xc0, 0xa8, 0xcb, 0x05, 0x08, 0x00, 0xf6, 0xf2, 0x05, 0x0c, 0x00, 0x01, 0xfc, 0xe2, 0x97, 0x51, + 0x00, 0x00, 0x00, 0x00, 0xa6, 0xf8, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x12, 0x13, + 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, + 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, + 0x34, 0x35, 0x36, 0x37}, + }, + ValidIDFlag: true, + VNI: 255, + GBPExtension: false, + GBPApplied: false, + GBPDontLearn: false, + GBPGroupPolicyID: 0, + } + if !reflect.DeepEqual(want, got) { + t.Errorf("VXLAN layer mismatch, \nwant %#v\ngot %#v\n", want, got) + } + } +} + +func BenchmarkDecodePacketVXLAN(b *testing.B) { + for i := 0; i < b.N; i++ { + gopacket.NewPacket(testPacketVXLAN, LinkTypeEthernet, gopacket.NoCopy) + } +} + +func TestIsomorphicPacketVXLAN(t *testing.T) { + vx := &VXLAN{ + ValidIDFlag: true, + VNI: 255, + GBPExtension: true, + GBPApplied: true, + GBPDontLearn: true, + GBPGroupPolicyID: 777, + } + + b := gopacket.NewSerializeBuffer() + vx.SerializeTo(b, gopacket.SerializeOptions{}) + + p := gopacket.NewPacket(b.Bytes(), gopacket.DecodeFunc(decodeVXLAN), gopacket.Default) + vxTranslated := p.Layer(LayerTypeVXLAN).(*VXLAN) + vxTranslated.BaseLayer = BaseLayer{} + + if !reflect.DeepEqual(vx, vxTranslated) { + t.Errorf("VXLAN isomorph mismatch, \nwant %#v\ngot %#v\n", vx, vxTranslated) + } +} |