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
|
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
*/
package wgcfg_test
import (
"testing"
"golang.zx2c4.com/wireguard/wgcfg"
)
func TestCIDRContains(t *testing.T) {
t.Run("home router test", func(t *testing.T) {
r, err := wgcfg.ParseCIDR("192.168.0.0/24")
if err != nil {
t.Fatal(err)
}
ip := wgcfg.ParseIP("192.168.0.1")
if ip == nil {
t.Fatalf("address failed to parse")
}
if !r.Contains(ip) {
t.Fatalf("'%s' should contain '%s'", r, ip)
}
})
t.Run("IPv4 outside network", func(t *testing.T) {
r, err := wgcfg.ParseCIDR("192.168.0.0/30")
if err != nil {
t.Fatal(err)
}
ip := wgcfg.ParseIP("192.168.0.4")
if ip == nil {
t.Fatalf("address failed to parse")
}
if r.Contains(ip) {
t.Fatalf("'%s' should not contain '%s'", r, ip)
}
})
t.Run("IPv4 does not contain IPv6", func(t *testing.T) {
r, err := wgcfg.ParseCIDR("192.168.0.0/24")
if err != nil {
t.Fatal(err)
}
ip := wgcfg.ParseIP("2001:db8:85a3:0:0:8a2e:370:7334")
if ip == nil {
t.Fatalf("address failed to parse")
}
if r.Contains(ip) {
t.Fatalf("'%s' should not contain '%s'", r, ip)
}
})
t.Run("IPv6 inside network", func(t *testing.T) {
r, err := wgcfg.ParseCIDR("2001:db8:1234::/48")
if err != nil {
t.Fatal(err)
}
ip := wgcfg.ParseIP("2001:db8:1234:0000:0000:0000:0000:0001")
if ip == nil {
t.Fatalf("ParseIP returned nil pointer")
}
if !r.Contains(ip) {
t.Fatalf("'%s' should not contain '%s'", r, ip)
}
})
t.Run("IPv6 outside network", func(t *testing.T) {
r, err := wgcfg.ParseCIDR("2001:db8:1234:0:190b:0:1982::/126")
if err != nil {
t.Fatal(err)
}
ip := wgcfg.ParseIP("2001:db8:1234:0:190b:0:1982:4")
if ip == nil {
t.Fatalf("ParseIP returned nil pointer")
}
if r.Contains(ip) {
t.Fatalf("'%s' should not contain '%s'", r, ip)
}
})
}
func BenchmarkCIDRContainsIPv4(b *testing.B) {
b.Run("IPv4", func(b *testing.B) {
r, err := wgcfg.ParseCIDR("192.168.1.0/24")
if err != nil {
b.Fatal(err)
}
ip := wgcfg.ParseIP("1.2.3.4")
if ip == nil {
b.Fatalf("ParseIP returned nil pointer")
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
r.Contains(ip)
}
})
b.Run("IPv6", func(b *testing.B) {
r, err := wgcfg.ParseCIDR("2001:db8:1234::/48")
if err != nil {
b.Fatal(err)
}
ip := wgcfg.ParseIP("2001:db8:1234:0000:0000:0000:0000:0001")
if ip == nil {
b.Fatalf("ParseIP returned nil pointer")
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
r.Contains(ip)
}
})
}
|
