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
|
package dhcpv6
import (
"bytes"
"net"
"reflect"
"testing"
"time"
"github.com/stretchr/testify/require"
)
func TestOptIAPrefix(t *testing.T) {
buf := []byte{
0xaa, 0xbb, 0xcc, 0xdd, // preferredLifetime
0xee, 0xff, 0x00, 0x11, // validLifetime
36, // prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // ipv6Prefix
}
opt, err := ParseOptIAPrefix(buf)
if err != nil {
t.Fatal(err)
}
want := &OptIAPrefix{
PreferredLifetime: 0xaabbccdd * time.Second,
ValidLifetime: 0xeeff0011 * time.Second,
Prefix: &net.IPNet{
Mask: net.CIDRMask(36, 128),
IP: net.IPv6loopback,
},
Options: PrefixOptions{[]Option{}},
}
if !reflect.DeepEqual(want, opt) {
t.Errorf("parseIAPrefix = %v, want %v", opt, want)
}
}
func TestOptIAPrefixToBytes(t *testing.T) {
buf := []byte{
0xaa, 0xbb, 0xcc, 0xdd, // preferredLifetime
0xee, 0xff, 0x00, 0x11, // validLifetime
36, // prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ipv6Prefix
0, 8, 0, 2, 0x00, 0x01, // options
}
opt := OptIAPrefix{
PreferredLifetime: 0xaabbccdd * time.Second,
ValidLifetime: 0xeeff0011 * time.Second,
Prefix: &net.IPNet{
Mask: net.CIDRMask(36, 128),
IP: net.IPv6zero,
},
Options: PrefixOptions{[]Option{OptElapsedTime(10 * time.Millisecond)}},
}
toBytes := opt.ToBytes()
if !bytes.Equal(toBytes, buf) {
t.Fatalf("Invalid ToBytes result. Expected %v, got %v", buf, toBytes)
}
}
func TestOptIAPrefixToBytesDefault(t *testing.T) {
buf := []byte{
0, 0, 0, 0, // preferredLifetime
0, 0, 0, 0, // validLifetime
0, // prefixLength
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ipv6Prefix
}
opt := OptIAPrefix{}
toBytes := opt.ToBytes()
if !bytes.Equal(toBytes, buf) {
t.Fatalf("Invalid ToBytes result. Expected %v, got %v", buf, toBytes)
}
}
func TestOptIAPrefixParseInvalidTooShort(t *testing.T) {
buf := []byte{
0xaa, 0xbb, 0xcc, 0xdd, // preferredLifetime
0xee, 0xff, 0x00, 0x11, // validLifetime
36, // prefixLength
0, 0, 0, 0, 0, 0, 0, // truncated ipv6Prefix
}
if opt, err := ParseOptIAPrefix(buf); err == nil {
t.Fatalf("ParseOptIAPrefix: Expected error on truncated option, got %v", opt)
}
}
func TestOptIAPrefixString(t *testing.T) {
buf := []byte{
0x00, 0x00, 0x00, 60, // preferredLifetime
0x00, 0x00, 0x00, 50, // validLifetime
36, // prefixLength
0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ipv6Prefix
}
opt, err := ParseOptIAPrefix(buf)
require.NoError(t, err)
str := opt.String()
require.Contains(
t, str,
"Prefix=2001:db8::/36",
"String() should return the ipv6addr",
)
require.Contains(
t, str,
"PreferredLifetime=1m",
"String() should return the preferredlifetime",
)
require.Contains(
t, str,
"ValidLifetime=50s",
"String() should return the validlifetime",
)
}
|
