This is part of an effort to clean up tailscaled initialization between tailscaled, tailscaled Windows service, tsnet, and the mac GUI. Updates #8036 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
		
			
				
	
	
		
			98 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			98 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package wgengine_test
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import (
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	"testing"
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	"github.com/tailscale/wireguard-go/tun"
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	"tailscale.com/net/tstun"
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	"tailscale.com/tsd"
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	"tailscale.com/types/logger"
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	"tailscale.com/wgengine"
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	"tailscale.com/wgengine/netstack"
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	"tailscale.com/wgengine/router"
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)
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func TestIsNetstack(t *testing.T) {
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	sys := new(tsd.System)
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	e, err := wgengine.NewUserspaceEngine(t.Logf, wgengine.Config{SetSubsystem: sys.Set})
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	if err != nil {
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		t.Fatal(err)
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	}
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	defer e.Close()
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	if !sys.IsNetstack() {
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		t.Errorf("IsNetstack = false; want true")
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	}
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}
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func TestIsNetstackRouter(t *testing.T) {
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	tests := []struct {
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		name              string
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		conf              wgengine.Config
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		setNetstackRouter bool
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		want              bool
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	}{
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		{
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			name: "no_netstack",
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			conf: wgengine.Config{
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				Tun:    newFakeOSTUN(),
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				Router: newFakeOSRouter(),
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			},
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			want: false,
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		},
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		{
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			name: "netstack",
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			conf: wgengine.Config{},
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			want: true,
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		},
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		{
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			name: "hybrid_netstack",
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			conf: wgengine.Config{
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				Tun:    newFakeOSTUN(),
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				Router: netstack.NewSubnetRouterWrapper(newFakeOSRouter()),
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			},
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			setNetstackRouter: true,
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			want:              true,
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		},
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	}
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	for _, tt := range tests {
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		t.Run(tt.name, func(t *testing.T) {
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			sys := &tsd.System{}
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			if tt.setNetstackRouter {
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				sys.NetstackRouter.Set(true)
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			}
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			conf := tt.conf
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			conf.SetSubsystem = sys.Set
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			e, err := wgengine.NewUserspaceEngine(logger.Discard, conf)
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			if err != nil {
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				t.Fatal(err)
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			}
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			defer e.Close()
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			if got := sys.IsNetstackRouter(); got != tt.want {
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				t.Errorf("IsNetstackRouter = %v; want %v", got, tt.want)
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			}
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		})
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	}
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}
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func newFakeOSRouter() router.Router {
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	return someRandoOSRouter{router.NewFake(logger.Discard)}
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}
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type someRandoOSRouter struct {
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	router.Router
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}
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func newFakeOSTUN() tun.Device {
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	return someRandoOSTUN{tstun.NewFake()}
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}
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type someRandoOSTUN struct {
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	tun.Device
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}
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// Name returns something that is not FakeTUN.
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func (t someRandoOSTUN) Name() (string, error) { return "some_os_tun0", nil }
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