netbird/iface/iface_test.go
Zoltan Papp 891ba277b1
Mobile (#735)
Initial modification to support mobile client

Export necessary interfaces for Android framework
2023-03-17 10:37:27 +01:00

404 lines
7.8 KiB
Go

package iface
import (
"fmt"
log "github.com/sirupsen/logrus"
"github.com/stretchr/testify/assert"
"golang.zx2c4.com/wireguard/wgctrl"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
"net"
"testing"
"time"
)
// keep darwin compability
const (
WgIntNumber = 2000
)
var (
key string
peerPubKey string
)
func init() {
log.SetLevel(log.DebugLevel)
privateKey, _ := wgtypes.GeneratePrivateKey()
key = privateKey.String()
peerPrivateKey, _ := wgtypes.GeneratePrivateKey()
peerPubKey = peerPrivateKey.PublicKey().String()
}
func TestWGIface_UpdateAddr(t *testing.T) {
ifaceName := fmt.Sprintf("utun%d", WgIntNumber+4)
addr := "100.64.0.1/8"
iface, err := NewWGIFace(ifaceName, addr, DefaultMTU, nil)
if err != nil {
t.Fatal(err)
}
err = iface.Create()
if err != nil {
t.Fatal(err)
}
defer func() {
err = iface.Close()
if err != nil {
t.Error(err)
}
}()
port, err := getListenPortByName(ifaceName)
if err != nil {
t.Fatal(err)
}
err = iface.Configure(key, port)
if err != nil {
t.Fatal(err)
}
addrs, err := getIfaceAddrs(ifaceName)
if err != nil {
t.Error(err)
}
assert.Equal(t, addr, addrs[0].String())
//update WireGuard address
addr = "100.64.0.2/8"
err = iface.UpdateAddr(addr)
if err != nil {
t.Fatal(err)
}
addrs, err = getIfaceAddrs(ifaceName)
if err != nil {
t.Error(err)
}
assert.Equal(t, addr, addrs[0].String())
}
func getIfaceAddrs(ifaceName string) ([]net.Addr, error) {
ief, err := net.InterfaceByName(ifaceName)
if err != nil {
return nil, err
}
addrs, err := ief.Addrs()
if err != nil {
return nil, err
}
return addrs, nil
}
func Test_CreateInterface(t *testing.T) {
ifaceName := fmt.Sprintf("utun%d", WgIntNumber+1)
wgIP := "10.99.99.1/32"
iface, err := NewWGIFace(ifaceName, wgIP, DefaultMTU, nil)
if err != nil {
t.Fatal(err)
}
err = iface.Create()
if err != nil {
t.Fatal(err)
}
defer func() {
err = iface.Close()
if err != nil {
t.Error(err)
}
}()
wg, err := wgctrl.New()
if err != nil {
t.Fatal(err)
}
defer func() {
err = wg.Close()
if err != nil {
t.Error(err)
}
}()
}
func Test_Close(t *testing.T) {
ifaceName := fmt.Sprintf("utun%d", WgIntNumber+2)
wgIP := "10.99.99.2/32"
iface, err := NewWGIFace(ifaceName, wgIP, DefaultMTU, nil)
if err != nil {
t.Fatal(err)
}
err = iface.Create()
if err != nil {
t.Fatal(err)
}
wg, err := wgctrl.New()
if err != nil {
t.Fatal(err)
}
defer func() {
err = wg.Close()
if err != nil {
t.Error(err)
}
}()
err = iface.Close()
if err != nil {
t.Fatal(err)
}
}
func Test_ConfigureInterface(t *testing.T) {
ifaceName := fmt.Sprintf("utun%d", WgIntNumber+3)
wgIP := "10.99.99.5/30"
iface, err := NewWGIFace(ifaceName, wgIP, DefaultMTU, nil)
if err != nil {
t.Fatal(err)
}
err = iface.Create()
if err != nil {
t.Fatal(err)
}
defer func() {
err = iface.Close()
if err != nil {
t.Error(err)
}
}()
port, err := getListenPortByName(ifaceName)
if err != nil {
t.Fatal(err)
}
err = iface.Configure(key, port)
if err != nil {
t.Fatal(err)
}
wg, err := wgctrl.New()
if err != nil {
t.Fatal(err)
}
defer func() {
err = wg.Close()
if err != nil {
t.Error(err)
}
}()
wgDevice, err := wg.Device(ifaceName)
if err != nil {
t.Fatal(err)
}
if wgDevice.PrivateKey.String() != key {
t.Fatalf("Private keys don't match after configure: %s != %s", key, wgDevice.PrivateKey.String())
}
}
func Test_UpdatePeer(t *testing.T) {
ifaceName := fmt.Sprintf("utun%d", WgIntNumber+4)
wgIP := "10.99.99.9/30"
iface, err := NewWGIFace(ifaceName, wgIP, DefaultMTU, nil)
if err != nil {
t.Fatal(err)
}
err = iface.Create()
if err != nil {
t.Fatal(err)
}
defer func() {
err = iface.Close()
if err != nil {
t.Error(err)
}
}()
port, err := getListenPortByName(ifaceName)
if err != nil {
t.Fatal(err)
}
err = iface.Configure(key, port)
if err != nil {
t.Fatal(err)
}
keepAlive := 15 * time.Second
allowedIP := "10.99.99.10/32"
endpoint, err := net.ResolveUDPAddr("udp", "127.0.0.1:9900")
if err != nil {
t.Fatal(err)
}
err = iface.UpdatePeer(peerPubKey, allowedIP, keepAlive, endpoint, nil)
if err != nil {
t.Fatal(err)
}
peer, err := iface.configurer.getPeer(ifaceName, peerPubKey)
if err != nil {
t.Fatal(err)
}
if peer.PersistentKeepaliveInterval != keepAlive {
t.Fatal("configured peer with mismatched keepalive interval value")
}
if peer.Endpoint.String() != endpoint.String() {
t.Fatal("configured peer with mismatched endpoint")
}
var foundAllowedIP bool
for _, aip := range peer.AllowedIPs {
if aip.String() == allowedIP {
foundAllowedIP = true
break
}
}
if !foundAllowedIP {
t.Fatal("configured peer with mismatched Allowed IPs")
}
}
func Test_RemovePeer(t *testing.T) {
ifaceName := fmt.Sprintf("utun%d", WgIntNumber+4)
wgIP := "10.99.99.13/30"
iface, err := NewWGIFace(ifaceName, wgIP, DefaultMTU, nil)
if err != nil {
t.Fatal(err)
}
err = iface.Create()
if err != nil {
t.Fatal(err)
}
defer func() {
err = iface.Close()
if err != nil {
t.Error(err)
}
}()
port, err := getListenPortByName(ifaceName)
if err != nil {
t.Fatal(err)
}
err = iface.Configure(key, port)
if err != nil {
t.Fatal(err)
}
keepAlive := 15 * time.Second
allowedIP := "10.99.99.14/32"
err = iface.UpdatePeer(peerPubKey, allowedIP, keepAlive, nil, nil)
if err != nil {
t.Fatal(err)
}
err = iface.RemovePeer(peerPubKey)
if err != nil {
t.Fatal(err)
}
_, err = iface.configurer.getPeer(ifaceName, peerPubKey)
if err.Error() != "peer not found" {
t.Fatal(err)
}
}
func Test_ConnectPeers(t *testing.T) {
peer1ifaceName := fmt.Sprintf("utun%d", WgIntNumber+400)
peer1wgIP := "10.99.99.17/30"
peer1Key, _ := wgtypes.GeneratePrivateKey()
peer2ifaceName := "utun500"
peer2wgIP := "10.99.99.18/30"
peer2Key, _ := wgtypes.GeneratePrivateKey()
keepAlive := 1 * time.Second
iface1, err := NewWGIFace(peer1ifaceName, peer1wgIP, DefaultMTU, nil)
if err != nil {
t.Fatal(err)
}
err = iface1.Create()
if err != nil {
t.Fatal(err)
}
peer1Port, err := getListenPortByName(peer1ifaceName)
if err != nil {
t.Fatal(err)
}
peer1endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("127.0.0.1:%d", peer1Port))
if err != nil {
t.Fatal(err)
}
iface2, err := NewWGIFace(peer2ifaceName, peer2wgIP, DefaultMTU, nil)
if err != nil {
t.Fatal(err)
}
err = iface2.Create()
if err != nil {
t.Fatal(err)
}
peer2Port, err := getListenPortByName(peer2ifaceName)
if err != nil {
t.Fatal(err)
}
peer2endpoint, err := net.ResolveUDPAddr("udp", fmt.Sprintf("127.0.0.1:%d", peer2Port))
if err != nil {
t.Fatal(err)
}
defer func() {
err = iface1.Close()
if err != nil {
t.Error(err)
}
err = iface2.Close()
if err != nil {
t.Error(err)
}
}()
err = iface1.Configure(peer1Key.String(), peer1Port)
if err != nil {
t.Fatal(err)
}
err = iface2.Configure(peer2Key.String(), peer2Port)
if err != nil {
t.Fatal(err)
}
err = iface1.UpdatePeer(peer2Key.PublicKey().String(), peer2wgIP, keepAlive, peer2endpoint, nil)
if err != nil {
t.Fatal(err)
}
err = iface2.UpdatePeer(peer1Key.PublicKey().String(), peer1wgIP, keepAlive, peer1endpoint, nil)
if err != nil {
t.Fatal(err)
}
// todo: investigate why in some tests execution we need 30s
timeout := 30 * time.Second
timeoutChannel := time.After(timeout)
for {
select {
case <-timeoutChannel:
t.Fatalf("waiting for peer handshake timeout after %s", timeout.String())
default:
}
peer, gpErr := iface1.configurer.getPeer(peer1ifaceName, peer2Key.PublicKey().String())
if gpErr != nil {
t.Fatal(gpErr)
}
if !peer.LastHandshakeTime.IsZero() {
t.Log("peers successfully handshake")
break
}
}
}
func getListenPortByName(name string) (int, error) {
wg, err := wgctrl.New()
if err != nil {
return 0, err
}
defer wg.Close()
d, err := wg.Device(name)
if err != nil {
return 0, err
}
return d.ListenPort, nil
}