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// 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 (
"reflect"
"testing"
"github.com/google/gopacket"
)
var testPacketGeneve1 = []byte{
0x00, 0x04, 0x00, 0x01, 0x00, 0x06, 0xfa, 0x16, 0x3e, 0x23, 0xd3, 0x42,
0x00, 0x00, 0x08, 0x00, 0x45, 0x00, 0x00, 0x86, 0x87, 0x39, 0x40, 0x00,
0x40, 0x11, 0x31, 0x35, 0xc0, 0xa8, 0x00, 0x53, 0xc0, 0xa8, 0x00, 0x55,
0x31, 0x57, 0x17, 0xc1, 0x00, 0x72, 0x00, 0x00, 0x00, 0x00, 0x65, 0x58,
0x00, 0x00, 0x00, 0x00, 0xba, 0x09, 0x60, 0x5f, 0xa0, 0x91, 0xa2, 0xfe,
0x54, 0x48, 0x88, 0x51, 0x08, 0x00, 0x45, 0x00, 0x00, 0x54, 0x01, 0xf6,
0x40, 0x00, 0x40, 0x01, 0xb7, 0x5f, 0xc0, 0xa8, 0x00, 0x01, 0xc0, 0xa8,
0x00, 0x02, 0x08, 0x00, 0x79, 0xdf, 0x0c, 0xfa, 0x63, 0xc4, 0x03, 0x0b,
0x50, 0x58, 0x00, 0x00, 0x00, 0x00, 0xee, 0x2b, 0x0d, 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,
}
var testPacketGeneve2 = []byte{
0x12, 0xbe, 0x4e, 0xb6, 0xa7, 0xc7, 0x02, 0x88, 0x0a, 0x81, 0xbd, 0x6d,
0x08, 0x00, 0x45, 0x00, 0x00, 0x86, 0x20, 0xf2, 0x00, 0x00, 0x40, 0x11,
0x01, 0x52, 0xac, 0x10, 0x00, 0x01, 0xac, 0x10, 0x00, 0x02, 0x40, 0xa6,
0x17, 0xc1, 0x00, 0x72, 0x00, 0x00, 0x00, 0x00, 0x65, 0x58, 0x00, 0x00,
0x0a, 0x00, 0xd2, 0x8c, 0xdb, 0x12, 0x53, 0xd5, 0x8e, 0xab, 0xa2, 0xa5,
0x02, 0xf7, 0x08, 0x00, 0x45, 0x00, 0x00, 0x54, 0x38, 0x1a, 0x40, 0x00,
0x40, 0x01, 0x81, 0x3b, 0xc0, 0xa8, 0x00, 0x01, 0xc0, 0xa8, 0x00, 0x02,
0x08, 0x00, 0xdd, 0x9d, 0x7e, 0xde, 0x02, 0xc3, 0xcb, 0x07, 0x51, 0x58,
0x00, 0x00, 0x00, 0x00, 0xba, 0x8d, 0x03, 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 TestDecodeGeneve1(t *testing.T) {
p := gopacket.NewPacket(testPacketGeneve1, LinkTypeLinuxSLL, gopacket.Default)
if p.ErrorLayer() != nil {
t.Error("Failed to decode packet:", p.ErrorLayer().Error())
}
checkLayers(p, []gopacket.LayerType{
LayerTypeLinuxSLL, LayerTypeIPv4, LayerTypeUDP, LayerTypeGeneve,
LayerTypeEthernet, LayerTypeIPv4, LayerTypeICMPv4, gopacket.LayerTypePayload,
}, t)
if got, ok := p.Layer(LayerTypeGeneve).(*Geneve); ok {
want := &Geneve{
BaseLayer: BaseLayer{
Contents: testPacketGeneve1[44:52],
Payload: testPacketGeneve1[52:150],
},
Version: 0x0,
OptionsLength: 0x0,
OAMPacket: false,
CriticalOption: false,
Protocol: EthernetTypeTransparentEthernetBridging,
VNI: 0x0,
}
if !reflect.DeepEqual(want, got) {
t.Errorf("Geneve layer mismatch, \nwant %#v\ngot %#v\n", want, got)
}
}
}
func TestDecodeGeneve2(t *testing.T) {
p := gopacket.NewPacket(testPacketGeneve2, LinkTypeEthernet, gopacket.Default)
if p.ErrorLayer() != nil {
t.Error("Failed to decode packet:", p.ErrorLayer().Error())
}
checkLayers(p, []gopacket.LayerType{
LayerTypeEthernet, LayerTypeIPv4, LayerTypeUDP, LayerTypeGeneve,
LayerTypeEthernet, LayerTypeIPv4, LayerTypeICMPv4, gopacket.LayerTypePayload,
}, t)
if got, ok := p.Layer(LayerTypeGeneve).(*Geneve); ok {
want := &Geneve{
BaseLayer: BaseLayer{
Contents: testPacketGeneve2[42:50],
Payload: testPacketGeneve2[50:148],
},
Version: 0x0,
OptionsLength: 0x0,
OAMPacket: false,
CriticalOption: false,
Protocol: EthernetTypeTransparentEthernetBridging,
VNI: 0xa,
}
if !reflect.DeepEqual(want, got) {
t.Errorf("Geneve layer mismatch, \nwant %#v\ngot %#v\n", want, got)
}
}
}
func BenchmarkDecodeGeneve1(b *testing.B) {
for i := 0; i < b.N; i++ {
gopacket.NewPacket(testPacketGeneve1, LinkTypeEthernet, gopacket.NoCopy)
}
}
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