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// Copyright placeholder
//
// 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"
)
const eapolErrFmt = "%s packet processing failed:\ngot :\n%#v\n\nwant :\n%#v\n\n"
// testPacketEAPOLKey is frame 87 in the capture:
// https://wiki.wireshark.org/SampleCaptures?action=AttachFile&do=get&target=wpa-Induction.pcap
// It's the first EAPOL-Key frame in the WPA 4-way handshake:
// 0x0000 02 03 00 75 02 00 8a 00 10 00 00 00 00 00 00 00 ...u............
// 0x0010 00 3e 8e 96 7d ac d9 60 32 4c ac 5b 6a a7 21 23 .>..}..`2L.[j.!#
// 0x0020 5b f5 7b 94 97 71 c8 67 98 9f 49 d0 4e d4 7c 69 [.{..q.g..I.N.|i
// 0x0030 33 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3...............
// 0x0040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
// 0x0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
// 0x0060 00 00 16 dd 14 00 0f ac 04 59 2d a8 80 96 c4 61 .........Y-....a
// 0x0070 da 24 6c 69 00 1e 87 7f 3d .$li....=
var testPacketEAPOLKey = []byte{
0x02, 0x03, 0x00, 0x75, 0x02, 0x00, 0x8a, 0x00,
0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x3e, 0x8e, 0x96, 0x7d, 0xac, 0xd9, 0x60,
0x32, 0x4c, 0xac, 0x5b, 0x6a, 0xa7, 0x21, 0x23,
0x5b, 0xf5, 0x7b, 0x94, 0x97, 0x71, 0xc8, 0x67,
0x98, 0x9f, 0x49, 0xd0, 0x4e, 0xd4, 0x7c, 0x69,
0x33, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x16, 0xdd, 0x14, 0x00, 0x0f, 0xac,
0x04, 0x59, 0x2d, 0xa8, 0x80, 0x96, 0xc4, 0x61,
0xda, 0x24, 0x6c, 0x69, 0x00, 0x1e, 0x87, 0x7f,
0x3d,
}
func TestPacketEAPOLKey(t *testing.T) {
p := gopacket.NewPacket(testPacketEAPOLKey, LayerTypeEAPOL, gopacket.Default)
if p.ErrorLayer() != nil {
t.Error("Failed to decode packet:", p.ErrorLayer().Error())
}
checkLayers(p, []gopacket.LayerType{LayerTypeEAPOL, LayerTypeEAPOLKey,
LayerTypeDot11InformationElement}, t)
{
got := p.Layer(LayerTypeEAPOL).(*EAPOL)
want := &EAPOL{
BaseLayer: BaseLayer{
Contents: testPacketEAPOLKey[:4],
Payload: testPacketEAPOLKey[4:],
},
Version: 2,
Type: EAPOLTypeKey,
Length: 117,
}
if !reflect.DeepEqual(got, want) {
t.Errorf(eapolErrFmt, "EAPOL", got, want)
}
}
{
got := p.Layer(LayerTypeEAPOLKey).(*EAPOLKey)
want := &EAPOLKey{
BaseLayer: BaseLayer{
Contents: testPacketEAPOLKey[4 : 4+eapolKeyFrameLen],
Payload: testPacketEAPOLKey[4+eapolKeyFrameLen:],
},
KeyDescriptorType: EAPOLKeyDescriptorTypeDot11,
KeyDescriptorVersion: EAPOLKeyDescriptorVersionAESHMACSHA1,
KeyType: EAPOLKeyTypePairwise,
KeyACK: true,
KeyLength: 16,
Nonce: []byte{
0x3e, 0x8e, 0x96, 0x7d, 0xac, 0xd9, 0x60, 0x32,
0x4c, 0xac, 0x5b, 0x6a, 0xa7, 0x21, 0x23, 0x5b,
0xf5, 0x7b, 0x94, 0x97, 0x71, 0xc8, 0x67, 0x98,
0x9f, 0x49, 0xd0, 0x4e, 0xd4, 0x7c, 0x69, 0x33,
},
IV: make([]byte, 16),
MIC: make([]byte, 16),
KeyDataLength: 22,
}
if !reflect.DeepEqual(got, want) {
t.Errorf(eapolErrFmt, "EAPOLKey", got, want)
}
}
{
got := p.Layer(LayerTypeDot11InformationElement).(*Dot11InformationElement)
want := &Dot11InformationElement{
BaseLayer: BaseLayer{
Contents: testPacketEAPOLKey[4+eapolKeyFrameLen:],
Payload: []byte{},
},
ID: Dot11InformationElementIDVendor,
Length: 20,
OUI: []byte{0x00, 0x0f, 0xac, 0x04},
Info: []byte{
0x59, 0x2d, 0xa8, 0x80, 0x96, 0xc4, 0x61, 0xda,
0x24, 0x6c, 0x69, 0x00, 0x1e, 0x87, 0x7f, 0x3d,
},
}
if !reflect.DeepEqual(got, want) {
t.Errorf(eapolErrFmt, "Dot11InformationElement", got, want)
}
}
}
func BenchmarkDecodePacketEAPOLKey(b *testing.B) {
for i := 0; i < b.N; i++ {
gopacket.NewPacket(testPacketEAPOLKey, nil, gopacket.NoCopy)
}
}
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