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/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
*/
package wgcfg_test
import (
"testing"
"golang.zx2c4.com/wireguard/wgcfg"
)
func parseIP(t testing.TB, ipStr string) wgcfg.IP {
t.Helper()
ip, ok := wgcfg.ParseIP(ipStr)
if !ok {
t.Fatalf("failed to parse IP: %q", ipStr)
}
return ip
}
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 := parseIP(t, "192.168.0.1")
if !r.Contains(ip) {
t.Fatalf("%q should contain %q", 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 := parseIP(t, "192.168.0.4")
if r.Contains(ip) {
t.Fatalf("%q should not contain %q", 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 := parseIP(t, "2001:db8:85a3:0:0:8a2e:370:7334")
if r.Contains(ip) {
t.Fatalf("%q should not contain %q", 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 := parseIP(t, "2001:db8:1234:0000:0000:0000:0000:0001")
if !r.Contains(ip) {
t.Fatalf("%q should not contain %q", 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 := parseIP(t, "2001:db8:1234:0:190b:0:1982:4")
if r.Contains(ip) {
t.Fatalf("%q should not contain %q", 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 := parseIP(b, "1.2.3.4")
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 := parseIP(b, "2001:db8:1234:0000:0000:0000:0000:0001")
b.ResetTimer()
for i := 0; i < b.N; i++ {
r.Contains(ip)
}
})
}
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