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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
package dhcpv6
import (
"net"
"testing"
"github.com/stretchr/testify/require"
)
func TestOptIANAParseOptIANA(t *testing.T) {
data := []byte{
1, 0, 0, 0, // IAID
0, 0, 0, 1, // T1
0, 0, 0, 2, // T2
0, 5, 0, 0x18, 0x24, 1, 0xdb, 0, 0x30, 0x10, 0xc0, 0x8f, 0xfa, 0xce, 0, 0, 0, 0x44, 0, 0, 0, 0, 0xb2, 0x7a, 0, 0, 0xc0, 0x8a, // options
}
opt, err := ParseOptIANA(data)
require.NoError(t, err)
require.Equal(t, len(data), opt.Length())
require.Equal(t, OptionIANA, opt.Code())
}
func TestOptIANAParseOptIANAInvalidLength(t *testing.T) {
data := []byte{
1, 0, 0, 0, // IAID
0, 0, 0, 1, // T1
// truncated from here
}
_, err := ParseOptIANA(data)
require.Error(t, err)
}
func TestOptIANAParseOptIANAInvalidOptions(t *testing.T) {
data := []byte{
1, 0, 0, 0, // IAID
0, 0, 0, 1, // T1
0, 0, 0, 2, // T2
0, 5, 0, 0x18, 0x24, 1, 0xdb, 0, 0x30, 0x10, 0xc0, 0x8f, 0xfa, 0xce, 0, 0, 0, 0x44, 0, 0, 0, 0, 0xb2, 0x7a, // truncated options
}
_, err := ParseOptIANA(data)
require.Error(t, err)
}
func TestOptIANAGetOneOption(t *testing.T) {
oaddr := &OptIAAddress{
IPv6Addr: net.ParseIP("::1"),
}
opt := OptIANA{
Options: []Option{&OptElapsedTime{}, oaddr},
}
require.Equal(t, oaddr, opt.GetOneOption(OptionIAAddr))
}
func TestOptIANAGetOneOptionMissingOpt(t *testing.T) {
oaddr := &OptIAAddress{
IPv6Addr: net.ParseIP("::1"),
}
opt := OptIANA{
Options: []Option{&OptElapsedTime{}, oaddr},
}
require.Equal(t, nil, opt.GetOneOption(OptionDNSRecursiveNameServer))
}
func TestOptIANADelOption(t *testing.T) {
optiana1 := OptIANA{}
optiana2 := OptIANA{}
optiaaddr := OptIAAddress{}
optsc := OptStatusCode{}
optiana1.Options = append(optiana1.Options, &optsc)
optiana1.Options = append(optiana1.Options, &optiaaddr)
optiana1.Options = append(optiana1.Options, &optiaaddr)
optiana1.DelOption(OptionIAAddr)
require.Equal(t, optiana1.Options, []Option{&optsc})
optiana2.Options = append(optiana2.Options, &optiaaddr)
optiana2.Options = append(optiana2.Options, &optsc)
optiana2.Options = append(optiana2.Options, &optiaaddr)
optiana2.DelOption(OptionIAAddr)
require.Equal(t, optiana2.Options, []Option{&optsc})
}
func TestOptIANAToBytes(t *testing.T) {
opt := OptIANA{
IaId: [4]byte{1, 2, 3, 4},
T1: 12345,
T2: 54321,
Options: []Option{
&OptElapsedTime{
ElapsedTime: 0xaabb,
},
},
}
expected := []byte{
0, 3, // OptionIANA
0, 18, // length
1, 2, 3, 4, // IA ID
0, 0, 0x30, 0x39, // T1 = 12345
0, 0, 0xd4, 0x31, // T2 = 54321
0, 8, 0, 2, 0xaa, 0xbb,
}
require.Equal(t, expected, opt.ToBytes())
}
func TestOptIANAString(t *testing.T) {
data := []byte{
1, 0, 0, 0, // IAID
0, 0, 0, 1, // T1
0, 0, 0, 2, // T2
0, 5, 0, 0x18, 0x24, 1, 0xdb, 0, 0x30, 0x10, 0xc0, 0x8f, 0xfa, 0xce, 0, 0, 0, 0x44, 0, 0, 0, 0, 0xb2, 0x7a, 0, 0, 0xc0, 0x8a, // options
}
opt, err := ParseOptIANA(data)
require.NoError(t, err)
str := opt.String()
require.Contains(
t, str,
"IAID=[1 0 0 0]",
"String() should return the IAID",
)
require.Contains(
t, str,
"t1=1, t2=2",
"String() should return the T1/T2 options",
)
require.Contains(
t, str,
"options=[",
"String() should return a list of options",
)
}
|
