1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
package dhcpv6
import (
"net"
"reflect"
"testing"
"github.com/insomniacslk/dhcp/iana"
"github.com/stretchr/testify/require"
)
func TestParseMessageOptionsWithServerID(t *testing.T) {
buf := []byte{
0, 2, // Server ID option
0, 10, // length
0, 3, // DUID_LL
0, 1, // hwtype ethernet
0, 1, 2, 3, 4, 5, // HW addr
}
want := &DUIDLL{HWType: iana.HWTypeEthernet, LinkLayerAddr: net.HardwareAddr{0, 1, 2, 3, 4, 5}}
var mo MessageOptions
if err := mo.FromBytes(buf); err != nil {
t.Errorf("FromBytes = %v", err)
} else if got := mo.ServerID(); !reflect.DeepEqual(got, want) {
t.Errorf("ServerID = %v, want %v", got, want)
}
}
func TestParseOptServerID(t *testing.T) {
data := []byte{
0, 3, // DUID_LL
0, 1, // hwtype ethernet
0, 1, 2, 3, 4, 5, // hw addr
}
var opt optServerID
err := opt.FromBytes(data)
require.NoError(t, err)
want := OptServerID(
&DUIDLL{
HWType: iana.HWTypeEthernet,
LinkLayerAddr: net.HardwareAddr{0, 1, 2, 3, 4, 5},
},
)
require.Equal(t, &opt, want)
}
func TestOptServerIdToBytes(t *testing.T) {
opt := OptServerID(
&DUIDLL{
HWType: iana.HWTypeEthernet,
LinkLayerAddr: net.HardwareAddr{5, 4, 3, 2, 1, 0},
},
)
expected := []byte{
0, 3, // DUID_LL
0, 1, // hwtype ethernet
5, 4, 3, 2, 1, 0, // hw addr
}
require.Equal(t, expected, opt.ToBytes())
}
func TestOptServerIdDecodeEncode(t *testing.T) {
data := []byte{
0, 3, // DUID_LL
0, 1, // hwtype ethernet
5, 4, 3, 2, 1, 0, // hw addr
}
var opt optServerID
err := opt.FromBytes(data)
require.NoError(t, err)
require.Equal(t, data, opt.ToBytes())
}
func TestOptionServerId(t *testing.T) {
opt := OptServerID(
&DUIDLL{
HWType: iana.HWTypeEthernet,
LinkLayerAddr: net.HardwareAddr{0xde, 0xad, 0, 0, 0xbe, 0xef},
},
)
require.Equal(t, OptionServerID, opt.Code())
require.Contains(
t,
opt.String(),
"Server ID: DUID-LL{HWType=Ethernet HWAddr=de:ad:00:00:be:ef}",
"String() should contain the correct sid output",
)
}
func TestOptServerIdparseOptServerIDBogusDUID(t *testing.T) {
data := []byte{
0, 4, // DUID_UUID
1, 2, 3, 4, 5, 6, 7, 8, 9, // a UUID should be 18 bytes not 17
10, 11, 12, 13, 14, 15, 16, 17,
}
var opt optServerID
err := opt.FromBytes(data)
require.Error(t, err, "A truncated OptServerId DUID should return an error")
}
func TestOptServerIdparseOptServerIDInvalidTooShort(t *testing.T) {
data := []byte{
0, // truncated: DUIDs are at least 2 bytes
}
var opt optServerID
err := opt.FromBytes(data)
require.Error(t, err, "A truncated OptServerId should return an error")
}
|
