Example #1
0
func defaultConfig(myName string) config.Configuration {
	newCfg := config.New(myID)
	newCfg.Folders = []config.FolderConfiguration{
		{
			ID:              "default",
			RawPath:         locations[locDefFolder],
			RescanIntervalS: 60,
			MinDiskFreePct:  1,
			Devices:         []config.FolderDeviceConfiguration{{DeviceID: myID}},
		},
	}
	newCfg.Devices = []config.DeviceConfiguration{
		{
			DeviceID:  myID,
			Addresses: []string{"dynamic"},
			Name:      myName,
		},
	}

	port, err := getFreePort("127.0.0.1", 8384)
	if err != nil {
		l.Fatalln("get free port (GUI):", err)
	}
	newCfg.GUI.Address = fmt.Sprintf("127.0.0.1:%d", port)

	port, err = getFreePort("0.0.0.0", 22000)
	if err != nil {
		l.Fatalln("get free port (BEP):", err)
	}
	newCfg.Options.ListenAddress = []string{fmt.Sprintf("tcp://0.0.0.0:%d", port)}
	return newCfg
}
Example #2
0
func defaultConfig(myName string) config.Configuration {
	defaultFolder := config.NewFolderConfiguration("default", locations[locDefFolder])
	defaultFolder.RescanIntervalS = 60
	defaultFolder.MinDiskFreePct = 1
	defaultFolder.Devices = []config.FolderDeviceConfiguration{{DeviceID: myID}}
	defaultFolder.AutoNormalize = true
	defaultFolder.MaxConflicts = -1

	thisDevice := config.NewDeviceConfiguration(myID, myName)
	thisDevice.Addresses = []string{"dynamic"}

	newCfg := config.New(myID)
	newCfg.Folders = []config.FolderConfiguration{defaultFolder}
	newCfg.Devices = []config.DeviceConfiguration{thisDevice}

	port, err := getFreePort("127.0.0.1", 8384)
	if err != nil {
		l.Fatalln("get free port (GUI):", err)
	}
	newCfg.GUI.RawAddress = fmt.Sprintf("127.0.0.1:%d", port)

	port, err = getFreePort("0.0.0.0", 22000)
	if err != nil {
		l.Fatalln("get free port (BEP):", err)
	}
	newCfg.Options.ListenAddress = []string{fmt.Sprintf("tcp://0.0.0.0:%d", port)}
	return newCfg
}
Example #3
0
func TestDeviceRename(t *testing.T) {
	ccm := protocol.ClusterConfigMessage{
		ClientName:    "syncthing",
		ClientVersion: "v0.9.4",
	}

	defer os.Remove("tmpconfig.xml")

	rawCfg := config.New(device1)
	rawCfg.Devices = []config.DeviceConfiguration{
		{
			DeviceID: device1,
		},
	}
	cfg := config.Wrap("tmpconfig.xml", rawCfg)

	db, _ := leveldb.Open(storage.NewMemStorage(), nil)
	m := NewModel(cfg, protocol.LocalDeviceID, "device", "syncthing", "dev", db)
	m.ServeBackground()
	if cfg.Devices()[device1].Name != "" {
		t.Errorf("Device already has a name")
	}

	m.ClusterConfig(device1, ccm)
	if cfg.Devices()[device1].Name != "" {
		t.Errorf("Device already has a name")
	}

	ccm.Options = []protocol.Option{
		{
			Key:   "name",
			Value: "tester",
		},
	}
	m.ClusterConfig(device1, ccm)
	if cfg.Devices()[device1].Name != "tester" {
		t.Errorf("Device did not get a name")
	}

	ccm.Options[0].Value = "tester2"
	m.ClusterConfig(device1, ccm)
	if cfg.Devices()[device1].Name != "tester" {
		t.Errorf("Device name got overwritten")
	}

	cfgw, err := config.Load("tmpconfig.xml", protocol.LocalDeviceID)
	if err != nil {
		t.Error(err)
		return
	}
	if cfgw.Devices()[device1].Name != "tester" {
		t.Errorf("Device name not saved in config")
	}
}
Example #4
0
func (w *Wrapper) AsStCfg(myID protocol.DeviceID) *stconfig.Wrapper {
	cfg := stconfig.New(myID)

	cfg.Folders = make([]stconfig.FolderConfiguration, len(w.Raw().Folders))
	for i, fldr := range w.Raw().Folders {
		cfg.Folders[i].ID = fldr.ID
		cfg.Folders[i].Devices = make([]stconfig.FolderDeviceConfiguration, len(fldr.Devices))
		copy(cfg.Folders[i].Devices, fldr.Devices)
	}

	cfg.Devices = w.Raw().Devices
	cfg.Options.ListenAddress = w.Raw().Options.ListenAddress

	return stconfig.Wrap("/shouldnotexist", cfg)
}
Example #5
0
func defaultConfig(myName string) config.Configuration {
	var defaultFolder config.FolderConfiguration

	if !noDefaultFolder {
		l.Infoln("Default folder created and/or linked to new config")
		folderID := rand.String(5) + "-" + rand.String(5)
		defaultFolder = config.NewFolderConfiguration(folderID, locations[locDefFolder])
		defaultFolder.Label = "Default Folder (" + folderID + ")"
		defaultFolder.RescanIntervalS = 60
		defaultFolder.MinDiskFreePct = 1
		defaultFolder.Devices = []config.FolderDeviceConfiguration{{DeviceID: myID}}
		defaultFolder.AutoNormalize = true
		defaultFolder.MaxConflicts = -1
	} else {
		l.Infoln("We will skip creation of a default folder on first start since the proper envvar is set")
	}

	thisDevice := config.NewDeviceConfiguration(myID, myName)
	thisDevice.Addresses = []string{"dynamic"}

	newCfg := config.New(myID)
	if !noDefaultFolder {
		newCfg.Folders = []config.FolderConfiguration{defaultFolder}
	}
	newCfg.Devices = []config.DeviceConfiguration{thisDevice}

	port, err := getFreePort("127.0.0.1", 8384)
	if err != nil {
		l.Fatalln("get free port (GUI):", err)
	}
	newCfg.GUI.RawAddress = fmt.Sprintf("127.0.0.1:%d", port)

	port, err = getFreePort("0.0.0.0", 22000)
	if err != nil {
		l.Fatalln("get free port (BEP):", err)
	}
	if port == 22000 {
		newCfg.Options.ListenAddresses = []string{"default"}
	} else {
		newCfg.Options.ListenAddresses = []string{
			fmt.Sprintf("tcp://%s", net.JoinHostPort("0.0.0.0", strconv.Itoa(port))),
			"dynamic+https://relays.syncthing.net/endpoint",
		}
	}

	return newCfg
}
Example #6
0
func (w *Wrapper) AsStCfg(myID protocol.DeviceID) *stconfig.Wrapper {
	cfg := stconfig.New(myID)

	cfg.Folders = make([]stconfig.FolderConfiguration, len(w.Raw().Folders))
	for i, fldr := range w.Raw().Folders {
		cfg.Folders[i].ID = fldr.ID
		cfg.Folders[i].Devices = make([]stconfig.FolderDeviceConfiguration, len(fldr.Devices))
		copy(cfg.Folders[i].Devices, fldr.Devices)
	}

	cfg.Devices = w.Raw().Devices
	cfg.Options.ListenAddresses = w.Raw().Options.ListenAddress
	cfg.Options.LocalAnnEnabled = w.Raw().Options.LocalAnnounceEnabled
	cfg.Options.LocalAnnPort = w.Raw().Options.LocalAnnouncePort
	cfg.Options.LocalAnnMCAddr = w.Raw().Options.LocalAnnounceMCAddr
	cfg.Options.GlobalAnnEnabled = w.Raw().Options.GlobalAnnounceEnabled
	cfg.Options.GlobalAnnServers = w.Raw().Options.GlobalAnnounceServers
	cfg.Options.RelaysEnabled = w.Raw().Options.RelaysEnabled
	cfg.Options.RelayReconnectIntervalM = w.Raw().Options.RelayReconnectIntervalM

	return stconfig.Wrap("/shouldnotexist", cfg)
}
Example #7
0
func defaultConfig(myName string) config.Configuration {
	var defaultFolder config.FolderConfiguration

	if !noDefaultFolder {
		l.Infoln("Default folder created and/or linked to new config")

		defaultFolder = config.NewFolderConfiguration("default", locations[locDefFolder])
		defaultFolder.RescanIntervalS = 60
		defaultFolder.MinDiskFreePct = 1
		defaultFolder.Devices = []config.FolderDeviceConfiguration{{DeviceID: myID}}
		defaultFolder.AutoNormalize = true
		defaultFolder.MaxConflicts = -1
	} else {
		l.Infoln("We will skip creation of a default folder on first start since the proper envvar is set")
	}

	thisDevice := config.NewDeviceConfiguration(myID, myName)
	thisDevice.Addresses = []string{"dynamic"}

	newCfg := config.New(myID)
	if !noDefaultFolder {
		newCfg.Folders = []config.FolderConfiguration{defaultFolder}
	}
	newCfg.Devices = []config.DeviceConfiguration{thisDevice}

	port, err := getFreePort("127.0.0.1", 8384)
	if err != nil {
		l.Fatalln("get free port (GUI):", err)
	}
	newCfg.GUI.RawAddress = fmt.Sprintf("127.0.0.1:%d", port)

	port, err = getFreePort("0.0.0.0", 22000)
	if err != nil {
		l.Fatalln("get free port (BEP):", err)
	}
	newCfg.Options.ListenAddress = []string{fmt.Sprintf("tcp://0.0.0.0:%d", port)}
	return newCfg
}
Example #8
0
func main() {
	log.SetFlags(log.Lshortfile | log.LstdFlags)

	var dir, extAddress, proto string

	flag.StringVar(&listen, "listen", ":22067", "Protocol listen address")
	flag.StringVar(&dir, "keys", ".", "Directory where cert.pem and key.pem is stored")
	flag.DurationVar(&networkTimeout, "network-timeout", networkTimeout, "Timeout for network operations between the client and the relay.\n\tIf no data is received between the client and the relay in this period of time, the connection is terminated.\n\tFurthermore, if no data is sent between either clients being relayed within this period of time, the session is also terminated.")
	flag.DurationVar(&pingInterval, "ping-interval", pingInterval, "How often pings are sent")
	flag.DurationVar(&messageTimeout, "message-timeout", messageTimeout, "Maximum amount of time we wait for relevant messages to arrive")
	flag.IntVar(&sessionLimitBps, "per-session-rate", sessionLimitBps, "Per session rate limit, in bytes/s")
	flag.IntVar(&globalLimitBps, "global-rate", globalLimitBps, "Global rate limit, in bytes/s")
	flag.BoolVar(&debug, "debug", debug, "Enable debug output")
	flag.StringVar(&statusAddr, "status-srv", ":22070", "Listen address for status service (blank to disable)")
	flag.StringVar(&poolAddrs, "pools", defaultPoolAddrs, "Comma separated list of relay pool addresses to join")
	flag.StringVar(&providedBy, "provided-by", "", "An optional description about who provides the relay")
	flag.StringVar(&extAddress, "ext-address", "", "An optional address to advertise as being available on.\n\tAllows listening on an unprivileged port with port forwarding from e.g. 443, and be connected to on port 443.")
	flag.StringVar(&proto, "protocol", "tcp", "Protocol used for listening. 'tcp' for IPv4 and IPv6, 'tcp4' for IPv4, 'tcp6' for IPv6")
	flag.BoolVar(&natEnabled, "nat", false, "Use UPnP/NAT-PMP to acquire external port mapping")
	flag.IntVar(&natLease, "nat-lease", 60, "NAT lease length in minutes")
	flag.IntVar(&natRenewal, "nat-renewal", 30, "NAT renewal frequency in minutes")
	flag.IntVar(&natTimeout, "nat-timeout", 10, "NAT discovery timeout in seconds")
	flag.Parse()

	if extAddress == "" {
		extAddress = listen
	}

	if len(providedBy) > 30 {
		log.Fatal("Provided-by cannot be longer than 30 characters")
	}

	addr, err := net.ResolveTCPAddr(proto, extAddress)
	if err != nil {
		log.Fatal(err)
	}

	laddr, err := net.ResolveTCPAddr(proto, listen)
	if err != nil {
		log.Fatal(err)
	}
	if laddr.IP != nil && !laddr.IP.IsUnspecified() {
		laddr.Port = 0
		transport, ok := http.DefaultTransport.(*http.Transport)
		if ok {
			transport.Dial = (&net.Dialer{
				Timeout:   30 * time.Second,
				LocalAddr: laddr,
			}).Dial
		}
	}

	log.Println(LongVersion)

	maxDescriptors, err := osutil.MaximizeOpenFileLimit()
	if maxDescriptors > 0 {
		// Assume that 20% of FD's are leaked/unaccounted for.
		descriptorLimit = int64(maxDescriptors*80) / 100
		log.Println("Connection limit", descriptorLimit)

		go monitorLimits()
	} else if err != nil && runtime.GOOS != "windows" {
		log.Println("Assuming no connection limit, due to error retrieving rlimits:", err)
	}

	sessionAddress = addr.IP[:]
	sessionPort = uint16(addr.Port)

	certFile, keyFile := filepath.Join(dir, "cert.pem"), filepath.Join(dir, "key.pem")
	cert, err := tls.LoadX509KeyPair(certFile, keyFile)
	if err != nil {
		log.Println("Failed to load keypair. Generating one, this might take a while...")
		cert, err = tlsutil.NewCertificate(certFile, keyFile, "strelaysrv", 3072)
		if err != nil {
			log.Fatalln("Failed to generate X509 key pair:", err)
		}
	}

	tlsCfg := &tls.Config{
		Certificates:           []tls.Certificate{cert},
		NextProtos:             []string{protocol.ProtocolName},
		ClientAuth:             tls.RequestClientCert,
		SessionTicketsDisabled: true,
		InsecureSkipVerify:     true,
		MinVersion:             tls.VersionTLS12,
		CipherSuites: []uint16{
			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
			tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
			tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
			tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
			tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
			tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
		},
	}

	id := syncthingprotocol.NewDeviceID(cert.Certificate[0])
	if debug {
		log.Println("ID:", id)
	}

	wrapper := config.Wrap("config", config.New(id))
	wrapper.SetOptions(config.OptionsConfiguration{
		NATLeaseM:   natLease,
		NATRenewalM: natRenewal,
		NATTimeoutS: natTimeout,
	})
	natSvc := nat.NewService(id, wrapper)
	mapping := mapping{natSvc.NewMapping(nat.TCP, addr.IP, addr.Port)}

	if natEnabled {
		go natSvc.Serve()
		found := make(chan struct{})
		mapping.OnChanged(func(_ *nat.Mapping, _, _ []nat.Address) {
			select {
			case found <- struct{}{}:
			default:
			}
		})

		// Need to wait a few extra seconds, since NAT library waits exactly natTimeout seconds on all interfaces.
		timeout := time.Duration(natTimeout+2) * time.Second
		log.Printf("Waiting %s to acquire NAT mapping", timeout)

		select {
		case <-found:
			log.Printf("Found NAT mapping: %s", mapping.ExternalAddresses())
		case <-time.After(timeout):
			log.Println("Timeout out waiting for NAT mapping.")
		}
	}

	if sessionLimitBps > 0 {
		sessionLimiter = ratelimit.NewBucketWithRate(float64(sessionLimitBps), int64(2*sessionLimitBps))
	}
	if globalLimitBps > 0 {
		globalLimiter = ratelimit.NewBucketWithRate(float64(globalLimitBps), int64(2*globalLimitBps))
	}

	if statusAddr != "" {
		go statusService(statusAddr)
	}

	uri, err := url.Parse(fmt.Sprintf("relay://%s/?id=%s&pingInterval=%s&networkTimeout=%s&sessionLimitBps=%d&globalLimitBps=%d&statusAddr=%s&providedBy=%s", mapping.Address(), id, pingInterval, networkTimeout, sessionLimitBps, globalLimitBps, statusAddr, providedBy))
	if err != nil {
		log.Fatalln("Failed to construct URI", err)
	}

	log.Println("URI:", uri.String())

	if poolAddrs == defaultPoolAddrs {
		log.Println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
		log.Println("!!  Joining default relay pools, this relay will be available for public use. !!")
		log.Println(`!!      Use the -pools="" command line option to make the relay private.      !!`)
		log.Println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
	}

	pools = strings.Split(poolAddrs, ",")
	for _, pool := range pools {
		pool = strings.TrimSpace(pool)
		if len(pool) > 0 {
			go poolHandler(pool, uri, mapping)
		}
	}

	go listener(proto, listen, tlsCfg)

	sigs := make(chan os.Signal, 1)
	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
	<-sigs

	// Gracefully close all connections, hoping that clients will be faster
	// to realize that the relay is now gone.

	sessionMut.RLock()
	for _, session := range activeSessions {
		session.CloseConns()
	}

	for _, session := range pendingSessions {
		session.CloseConns()
	}
	sessionMut.RUnlock()

	outboxesMut.RLock()
	for _, outbox := range outboxes {
		close(outbox)
	}
	outboxesMut.RUnlock()

	time.Sleep(500 * time.Millisecond)
}
Example #9
0
func TestClusterConfig(t *testing.T) {
	cfg := config.New(device1)
	cfg.Devices = []config.DeviceConfiguration{
		{
			DeviceID:   device1,
			Introducer: true,
		},
		{
			DeviceID: device2,
		},
	}
	cfg.Folders = []config.FolderConfiguration{
		{
			ID: "folder1",
			Devices: []config.FolderDeviceConfiguration{
				{DeviceID: device1},
				{DeviceID: device2},
			},
		},
		{
			ID: "folder2",
			Devices: []config.FolderDeviceConfiguration{
				{DeviceID: device1},
				{DeviceID: device2},
			},
		},
	}

	db, _ := leveldb.Open(storage.NewMemStorage(), nil)

	m := NewModel(config.Wrap("/tmp/test", cfg), protocol.LocalDeviceID, "device", "syncthing", "dev", db, nil)
	m.AddFolder(cfg.Folders[0])
	m.AddFolder(cfg.Folders[1])
	m.ServeBackground()

	cm := m.clusterConfig(device2)

	if l := len(cm.Folders); l != 2 {
		t.Fatalf("Incorrect number of folders %d != 2", l)
	}

	r := cm.Folders[0]
	if r.ID != "folder1" {
		t.Errorf("Incorrect folder %q != folder1", r.ID)
	}
	if l := len(r.Devices); l != 2 {
		t.Errorf("Incorrect number of devices %d != 2", l)
	}
	if id := r.Devices[0].ID; bytes.Compare(id, device1[:]) != 0 {
		t.Errorf("Incorrect device ID %x != %x", id, device1)
	}
	if r.Devices[0].Flags&protocol.FlagIntroducer == 0 {
		t.Error("Device1 should be flagged as Introducer")
	}
	if id := r.Devices[1].ID; bytes.Compare(id, device2[:]) != 0 {
		t.Errorf("Incorrect device ID %x != %x", id, device2)
	}
	if r.Devices[1].Flags&protocol.FlagIntroducer != 0 {
		t.Error("Device2 should not be flagged as Introducer")
	}

	r = cm.Folders[1]
	if r.ID != "folder2" {
		t.Errorf("Incorrect folder %q != folder2", r.ID)
	}
	if l := len(r.Devices); l != 2 {
		t.Errorf("Incorrect number of devices %d != 2", l)
	}
	if id := r.Devices[0].ID; bytes.Compare(id, device1[:]) != 0 {
		t.Errorf("Incorrect device ID %x != %x", id, device1)
	}
	if r.Devices[0].Flags&protocol.FlagIntroducer == 0 {
		t.Error("Device1 should be flagged as Introducer")
	}
	if id := r.Devices[1].ID; bytes.Compare(id, device2[:]) != 0 {
		t.Errorf("Incorrect device ID %x != %x", id, device2)
	}
	if r.Devices[1].Flags&protocol.FlagIntroducer != 0 {
		t.Error("Device2 should not be flagged as Introducer")
	}
}
Example #10
0
func TestDeviceRename(t *testing.T) {
	ccm := protocol.ClusterConfigMessage{
		ClientName:    "syncthing",
		ClientVersion: "v0.9.4",
	}

	defer os.Remove("tmpconfig.xml")

	rawCfg := config.New(device1)
	rawCfg.Devices = []config.DeviceConfiguration{
		{
			DeviceID: device1,
		},
	}
	cfg := config.Wrap("tmpconfig.xml", rawCfg)

	db, _ := leveldb.Open(storage.NewMemStorage(), nil)
	m := NewModel(cfg, protocol.LocalDeviceID, "device", "syncthing", "dev", db, nil)

	fc := FakeConnection{
		id:          device1,
		requestData: []byte("some data to return"),
	}

	m.AddConnection(Connection{
		&net.TCPConn{},
		fc,
		ConnectionTypeDirectAccept,
	})

	m.ServeBackground()
	if cfg.Devices()[device1].Name != "" {
		t.Errorf("Device already has a name")
	}

	m.ClusterConfig(device1, ccm)
	if cfg.Devices()[device1].Name != "" {
		t.Errorf("Device already has a name")
	}

	ccm.DeviceName = "tester"
	m.ClusterConfig(device1, ccm)
	if cfg.Devices()[device1].Name != "tester" {
		t.Errorf("Device did not get a name")
	}

	ccm.DeviceName = "tester2"
	m.ClusterConfig(device1, ccm)
	if cfg.Devices()[device1].Name != "tester" {
		t.Errorf("Device name got overwritten")
	}

	cfgw, err := config.Load("tmpconfig.xml", protocol.LocalDeviceID)
	if err != nil {
		t.Error(err)
		return
	}
	if cfgw.Devices()[device1].Name != "tester" {
		t.Errorf("Device name not saved in config")
	}
}
Example #11
0
func TestDeviceRename(t *testing.T) {
	hello := protocol.HelloMessage{
		ClientName:    "syncthing",
		ClientVersion: "v0.9.4",
	}
	defer os.Remove("tmpconfig.xml")

	rawCfg := config.New(device1)
	rawCfg.Devices = []config.DeviceConfiguration{
		{
			DeviceID: device1,
		},
	}
	cfg := config.Wrap("tmpconfig.xml", rawCfg)

	db := db.OpenMemory()
	m := NewModel(cfg, protocol.LocalDeviceID, "device", "syncthing", "dev", db, nil)

	if cfg.Devices()[device1].Name != "" {
		t.Errorf("Device already has a name")
	}

	conn := Connection{
		&net.TCPConn{},
		&FakeConnection{
			id:          device1,
			requestData: []byte("some data to return"),
		},
		ConnectionTypeDirectAccept,
	}

	m.AddConnection(conn, hello)

	m.ServeBackground()

	if cfg.Devices()[device1].Name != "" {
		t.Errorf("Device already has a name")
	}

	m.Close(device1, protocol.ErrTimeout)
	hello.DeviceName = "tester"
	m.AddConnection(conn, hello)

	if cfg.Devices()[device1].Name != "tester" {
		t.Errorf("Device did not get a name")
	}

	m.Close(device1, protocol.ErrTimeout)
	hello.DeviceName = "tester2"
	m.AddConnection(conn, hello)

	if cfg.Devices()[device1].Name != "tester" {
		t.Errorf("Device name got overwritten")
	}

	cfgw, err := config.Load("tmpconfig.xml", protocol.LocalDeviceID)
	if err != nil {
		t.Error(err)
		return
	}
	if cfgw.Devices()[device1].Name != "tester" {
		t.Errorf("Device name not saved in config")
	}

	m.Close(device1, protocol.ErrTimeout)

	opts := cfg.Options()
	opts.OverwriteNames = true
	cfg.SetOptions(opts)

	hello.DeviceName = "tester2"
	m.AddConnection(conn, hello)

	if cfg.Devices()[device1].Name != "tester2" {
		t.Errorf("Device name not overwritten")
	}
}
Example #12
0
func TestClusterConfig(t *testing.T) {
	cfg := config.New(device1)
	cfg.Devices = []config.DeviceConfiguration{
		{
			DeviceID:   device1,
			Introducer: true,
		},
		{
			DeviceID: device2,
		},
	}
	cfg.Folders = []config.FolderConfiguration{
		{
			ID: "folder1",
			Devices: []config.FolderDeviceConfiguration{
				{DeviceID: device1},
				{DeviceID: device2},
			},
		},
		{
			ID: "folder2",
			Devices: []config.FolderDeviceConfiguration{
				{DeviceID: device1},
				{DeviceID: device2},
			},
		},
	}

	db := db.OpenMemory()

	m := NewModel(config.Wrap("/tmp/test", cfg), protocol.LocalDeviceID, "device", "syncthing", "dev", db, nil)
	m.AddFolder(cfg.Folders[0])
	m.AddFolder(cfg.Folders[1])
	m.ServeBackground()
	defer m.Stop()

	cm := m.generateClusterConfig(device2)

	if l := len(cm.Folders); l != 2 {
		t.Fatalf("Incorrect number of folders %d != 2", l)
	}

	r := cm.Folders[0]
	if r.ID != "folder1" {
		t.Errorf("Incorrect folder %q != folder1", r.ID)
	}
	if l := len(r.Devices); l != 2 {
		t.Errorf("Incorrect number of devices %d != 2", l)
	}
	if id := r.Devices[0].ID; id != device1 {
		t.Errorf("Incorrect device ID %x != %x", id, device1)
	}
	if !r.Devices[0].Introducer {
		t.Error("Device1 should be flagged as Introducer")
	}
	if id := r.Devices[1].ID; id != device2 {
		t.Errorf("Incorrect device ID %x != %x", id, device2)
	}
	if r.Devices[1].Introducer {
		t.Error("Device2 should not be flagged as Introducer")
	}

	r = cm.Folders[1]
	if r.ID != "folder2" {
		t.Errorf("Incorrect folder %q != folder2", r.ID)
	}
	if l := len(r.Devices); l != 2 {
		t.Errorf("Incorrect number of devices %d != 2", l)
	}
	if id := r.Devices[0].ID; id != device1 {
		t.Errorf("Incorrect device ID %x != %x", id, device1)
	}
	if !r.Devices[0].Introducer {
		t.Error("Device1 should be flagged as Introducer")
	}
	if id := r.Devices[1].ID; id != device2 {
		t.Errorf("Incorrect device ID %x != %x", id, device2)
	}
	if r.Devices[1].Introducer {
		t.Error("Device2 should not be flagged as Introducer")
	}
}