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// Copyright 2020 The GoPacket Authors. 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/gopacket/gopacket"
)
// testPacketLLDP is the packet:
//
// 13:03:20.982430 LLDP, length 222: Switch1
// 0x0000: 0180 c200 000e 001b 1b02 e61f 88cc 0208 ................
// 0x0010: 0773 7769 7463 6831 0409 0770 6f72 742d .switch1...port-
// 0x0020: 3030 3106 0200 1408 2d53 6965 6d65 6e73 001.....-Siemens
// 0x0030: 2c20 5349 4d41 5449 4320 4e45 542c 2045 ,.SIMATIC.NET,.E
// 0x0040: 7468 6572 6e65 7420 5377 6974 6368 2050 thernet.Switch.P
// 0x0050: 6f72 7420 3031 0a07 5377 6974 6368 310c ort.01..Switch1.
// 0x0060: 4c53 6965 6d65 6e73 2c20 5349 4d41 5449 LSiemens,.SIMATI
// 0x0070: 4320 4e45 542c 2053 4341 4c41 4e43 4520 C.NET,.SCALANCE.
// 0x0080: 5832 3132 2d32 2c20 3647 4b35 2032 3132 X212-2,.6GK5.212
// 0x0090: 2d32 4242 3030 2d32 4141 332c 2048 573a -2BB00-2AA3,.HW:
// 0x00a0: 2037 2c20 4657 3a20 5634 2e30 320e 0400 .7,.FW:.V4.02...
// 0x00b0: 8000 8010 1405 018d 5100 be02 0000 0001 ........Q.......
// 0x00c0: 082b 0601 0401 81c0 6efe 0800 0ecf 0200 .+......n.......
// 0x00d0: 0000 00fe 0a00 0ecf 0500 1b1b 02e6 1efe ................
// 0x00e0: 0900 120f 0103 6c00 0010 0000 ......l.....
var testPacketLLDP = []byte{
0x01, 0x80, 0xc2, 0x00, 0x00, 0x0e, 0x00, 0x1b, 0x1b, 0x02, 0xe6, 0x1f, 0x88, 0xcc, 0x02, 0x08,
0x07, 0x73, 0x77, 0x69, 0x74, 0x63, 0x68, 0x31, 0x04, 0x09, 0x07, 0x70, 0x6f, 0x72, 0x74, 0x2d,
0x30, 0x30, 0x31, 0x06, 0x02, 0x00, 0x14, 0x08, 0x2d, 0x53, 0x69, 0x65, 0x6d, 0x65, 0x6e, 0x73,
0x2c, 0x20, 0x53, 0x49, 0x4d, 0x41, 0x54, 0x49, 0x43, 0x20, 0x4e, 0x45, 0x54, 0x2c, 0x20, 0x45,
0x74, 0x68, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x20, 0x53, 0x77, 0x69, 0x74, 0x63, 0x68, 0x20, 0x50,
0x6f, 0x72, 0x74, 0x20, 0x30, 0x31, 0x0a, 0x07, 0x53, 0x77, 0x69, 0x74, 0x63, 0x68, 0x31, 0x0c,
0x4c, 0x53, 0x69, 0x65, 0x6d, 0x65, 0x6e, 0x73, 0x2c, 0x20, 0x53, 0x49, 0x4d, 0x41, 0x54, 0x49,
0x43, 0x20, 0x4e, 0x45, 0x54, 0x2c, 0x20, 0x53, 0x43, 0x41, 0x4c, 0x41, 0x4e, 0x43, 0x45, 0x20,
0x58, 0x32, 0x31, 0x32, 0x2d, 0x32, 0x2c, 0x20, 0x36, 0x47, 0x4b, 0x35, 0x20, 0x32, 0x31, 0x32,
0x2d, 0x32, 0x42, 0x42, 0x30, 0x30, 0x2d, 0x32, 0x41, 0x41, 0x33, 0x2c, 0x20, 0x48, 0x57, 0x3a,
0x20, 0x37, 0x2c, 0x20, 0x46, 0x57, 0x3a, 0x20, 0x56, 0x34, 0x2e, 0x30, 0x32, 0x0e, 0x04, 0x00,
0x80, 0x00, 0x80, 0x10, 0x14, 0x05, 0x01, 0x8d, 0x51, 0x00, 0xbe, 0x02, 0x00, 0x00, 0x00, 0x01,
0x08, 0x2b, 0x06, 0x01, 0x04, 0x01, 0x81, 0xc0, 0x6e, 0xfe, 0x08, 0x00, 0x0e, 0xcf, 0x02, 0x00,
0x00, 0x00, 0x00, 0xfe, 0x0a, 0x00, 0x0e, 0xcf, 0x05, 0x00, 0x1b, 0x1b, 0x02, 0xe6, 0x1e, 0xfe,
0x09, 0x00, 0x12, 0x0f, 0x01, 0x03, 0x6c, 0x00, 0x00, 0x10, 0x00, 0x00,
}
func TestPacketLLDP(t *testing.T) {
p := gopacket.NewPacket(testPacketLLDP, LinkTypeEthernet, gopacket.Default)
if p.ErrorLayer() != nil {
t.Error("Failed to decode packet:", p.ErrorLayer().Error())
}
checkLayers(p, []gopacket.LayerType{LayerTypeEthernet, LayerTypeLinkLayerDiscovery, LayerTypeLinkLayerDiscoveryInfo}, t)
if got, ok := p.Layer(LayerTypeLinkLayerDiscoveryInfo).(*LinkLayerDiscoveryInfo); ok {
want := &LinkLayerDiscoveryInfo{
PortDescription: "Siemens, SIMATIC NET, Ethernet Switch Port 01",
SysName: "Switch1",
SysDescription: "Siemens, SIMATIC NET, SCALANCE X212-2, 6GK5 212-2BB00-2AA3, HW: 7, FW: V4.02",
SysCapabilities: LLDPSysCapabilities{
SystemCap: LLDPCapabilities{StationOnly: true},
EnabledCap: LLDPCapabilities{StationOnly: true},
},
MgmtAddress: LLDPMgmtAddress{
Subtype: 0x1,
Address: []uint8{0x8d, 0x51, 0x0, 0xbe},
InterfaceSubtype: 0x2,
InterfaceNumber: 0x1,
OID: "+\x06\x01\x04\x01\x81\xc0n",
},
OrgTLVs: []LLDPOrgSpecificTLV{
{OUI: 0xecf, SubType: 0x2, Info: []uint8{0x0, 0x0, 0x0, 0x0}},
{OUI: 0xecf, SubType: 0x5, Info: []uint8{0x0, 0x1b, 0x1b, 0x2, 0xe6, 0x1e}},
{OUI: 0x120f, SubType: 0x1, Info: []uint8{0x3, 0x6c, 0x0, 0x0, 0x10}},
},
}
if !reflect.DeepEqual(got, want) {
t.Errorf("LLDP Info packet processing failed:\ngot :\n%#v\n\nwant :\n%#v\n\n", got, want)
}
} else {
t.Error("No LLDP Info layer type found in packet")
}
}
func BenchmarkDecodePacketLLDP(b *testing.B) {
for i := 0; i < b.N; i++ {
gopacket.NewPacket(testPacketLLDP, LinkTypeEthernet, gopacket.NoCopy)
}
}
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