feat(tailscale): add connect/disconnect, exit-node and LAN-access controls (#2644)

* feat(tailscale): add connect/disconnect/exit-node/LAN-access backend The Tailscale backend previously exposed only read-only status (tailscale.getStatus, tailscale.refresh). This adds write actions through the existing tailscale.com/client/local integration: - tailscale.connect / tailscale.disconnect (EditPrefs WantRunning) - tailscale.setExitNode (EditPrefs ExitNodeID; empty id clears it and any legacy ExitNodeIP, mirroring `tailscale set --exit-node`) - tailscale.setAllowLanAccess (EditPrefs ExitNodeAllowLANAccess) The manager's client interface gains GetPrefs/EditPrefs; fetchState merges ExitNodeAllowLANAccess from prefs, and Peer exposes ExitNodeOption so the UI can list exit-node-capable peers. * feat(tailscale): expose the new actions in TailscaleService Adds connectTailscale/disconnectTailscale, setExitNode/clearExitNode and setAllowLanAccess wrappers, plus derived exitNodeOptions/currentExitNode and the exitNodeAllowLanAccess state. Write-action errors surface via ToastService. * feat(tailscale): add connection, exit-node and LAN-access controls to the widget The control-center widget toggle was a no-op. It now connects/disconnects, and the detail panel gains a connection status row with a connect/disconnect button, an exit-node picker and a LAN-access toggle.
2026-06-16 16:15:23 -04:00 · 2026-06-16 15:08:22 +02:00
parent 2fd9de5062
commit 988b54515e
8 changed files with 499 additions and 39 deletions
@@ -66,16 +66,17 @@ func convertPeerStatus(ps *ipnstate.PeerStatus, users map[tailcfg.UserID]tailcfg
 	}

 	peer := Peer{
-		ID:       string(ps.ID),
-		Hostname: hostname,
-		DNSName:  dnsName,
-		OS:       ps.OS,
-		Online:   ps.Online,
-		Active:   ps.Active,
-		ExitNode: ps.ExitNode,
-		Relay:    ps.Relay,
-		RxBytes:  ps.RxBytes,
-		TxBytes:  ps.TxBytes,
+		ID:             string(ps.ID),
+		Hostname:       hostname,
+		DNSName:        dnsName,
+		OS:             ps.OS,
+		Online:         ps.Online,
+		Active:         ps.Active,
+		ExitNode:       ps.ExitNode,
+		ExitNodeOption: ps.ExitNodeOption,
+		Relay:          ps.Relay,
+		RxBytes:        ps.RxBytes,
+		TxBytes:        ps.TxBytes,
 	}

 	for _, ip := range ps.TailscaleIPs {
@@ -14,6 +14,14 @@ func HandleRequest(conn net.Conn, req models.Request, manager *Manager) {
 		handleGetStatus(conn, req, manager)
 	case "tailscale.refresh":
 		handleRefresh(conn, req, manager)
+	case "tailscale.connect":
+		handleConnect(conn, req, manager)
+	case "tailscale.disconnect":
+		handleDisconnect(conn, req, manager)
+	case "tailscale.setExitNode":
+		handleSetExitNode(conn, req, manager)
+	case "tailscale.setAllowLanAccess":
+		handleSetAllowLanAccess(conn, req, manager)
 	default:
 		models.RespondError(conn, req.ID, fmt.Sprintf("unknown method: %s", req.Method))
 	}
@@ -28,3 +36,37 @@ func handleRefresh(conn net.Conn, req models.Request, manager *Manager) {
 	manager.RefreshState()
 	models.Respond(conn, req.ID, models.SuccessResult{Success: true, Message: "refreshed"})
 }
+
+func handleConnect(conn net.Conn, req models.Request, manager *Manager) {
+	if err := manager.Connect(); err != nil {
+		models.RespondError(conn, req.ID, err.Error())
+		return
+	}
+	models.Respond(conn, req.ID, models.SuccessResult{Success: true, Message: "connected"})
+}
+
+func handleDisconnect(conn net.Conn, req models.Request, manager *Manager) {
+	if err := manager.Disconnect(); err != nil {
+		models.RespondError(conn, req.ID, err.Error())
+		return
+	}
+	models.Respond(conn, req.ID, models.SuccessResult{Success: true, Message: "disconnected"})
+}
+
+func handleSetExitNode(conn net.Conn, req models.Request, manager *Manager) {
+	id := models.GetOr(req, "id", "")
+	if err := manager.SetExitNode(id); err != nil {
+		models.RespondError(conn, req.ID, err.Error())
+		return
+	}
+	models.Respond(conn, req.ID, models.SuccessResult{Success: true, Message: "exit node updated"})
+}
+
+func handleSetAllowLanAccess(conn net.Conn, req models.Request, manager *Manager) {
+	enabled := models.GetOr(req, "enabled", false)
+	if err := manager.SetAllowLANAccess(enabled); err != nil {
+		models.RespondError(conn, req.ID, err.Error())
+		return
+	}
+	models.Respond(conn, req.ID, models.SuccessResult{Success: true, Message: "lan access updated"})
+}
@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"fmt"
 	"net"
 	"testing"
 	"time"
@@ -78,6 +79,63 @@ func TestHandleRefresh(t *testing.T) {
 	assert.True(t, resp.Result.Success)
 }

+func TestHandleActions(t *testing.T) {
+	cases := []struct {
+		name   string
+		method string
+		params map[string]any
+	}{
+		{"connect", "tailscale.connect", nil},
+		{"disconnect", "tailscale.disconnect", nil},
+		{"setExitNode", "tailscale.setExitNode", map[string]any{"id": "nABC123"}},
+		{"clearExitNode", "tailscale.setExitNode", map[string]any{"id": ""}},
+		{"setAllowLanAccess", "tailscale.setAllowLanAccess", map[string]any{"enabled": true}},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			m := handlerTestManager()
+			defer m.Close()
+
+			buf := &bytes.Buffer{}
+			conn := &mockConn{Buffer: buf}
+
+			req := models.Request{ID: 1, Method: tc.method, Params: tc.params}
+			HandleRequest(conn, req, m)
+
+			var resp models.Response[models.SuccessResult]
+			require.NoError(t, json.NewDecoder(buf).Decode(&resp))
+			assert.Equal(t, 1, resp.ID)
+			assert.Empty(t, resp.Error)
+			require.NotNil(t, resp.Result)
+			assert.True(t, resp.Result.Success)
+		})
+	}
+}
+
+func TestHandleAction_BackendError(t *testing.T) {
+	client := &mockClient{
+		watchFn:  blockingWatch,
+		statusFn: func(ctx context.Context) (*ipnstate.Status, error) { return runningStatus(), nil },
+		editPrefsFn: func(ctx context.Context, mp *ipn.MaskedPrefs) (*ipn.Prefs, error) {
+			return nil, fmt.Errorf("backend rejected edit")
+		},
+	}
+	m := newManager(client)
+	defer m.Close()
+
+	buf := &bytes.Buffer{}
+	conn := &mockConn{Buffer: buf}
+
+	req := models.Request{ID: 1, Method: "tailscale.connect"}
+	HandleRequest(conn, req, m)
+
+	var resp models.Response[models.SuccessResult]
+	require.NoError(t, json.NewDecoder(buf).Decode(&resp))
+	assert.Nil(t, resp.Result)
+	assert.Contains(t, resp.Error, "backend rejected edit")
+}
+
 func TestHandleRequest_UnknownMethod(t *testing.T) {
 	m := handlerTestManager()
 	defer m.Close()
@@ -11,6 +11,7 @@ import (
 	"tailscale.com/client/local"
 	"tailscale.com/ipn"
 	"tailscale.com/ipn/ipnstate"
+	"tailscale.com/tailcfg"
 )

 const (
@@ -22,6 +23,8 @@ const (
 type tailscaleClient interface {
 	WatchIPNBus(ctx context.Context, mask ipn.NotifyWatchOpt) (ipnBusWatcher, error)
 	Status(ctx context.Context) (*ipnstate.Status, error)
+	GetPrefs(ctx context.Context) (*ipn.Prefs, error)
+	EditPrefs(ctx context.Context, mp *ipn.MaskedPrefs) (*ipn.Prefs, error)
 }

 // ipnBusWatcher abstracts the IPN bus watcher for testing.
@@ -43,6 +46,14 @@ func (w *localClientWrapper) Status(ctx context.Context) (*ipnstate.Status, erro
 	return w.client.Status(ctx)
 }

+func (w *localClientWrapper) GetPrefs(ctx context.Context) (*ipn.Prefs, error) {
+	return w.client.GetPrefs(ctx)
+}
+
+func (w *localClientWrapper) EditPrefs(ctx context.Context, mp *ipn.MaskedPrefs) (*ipn.Prefs, error) {
+	return w.client.EditPrefs(ctx, mp)
+}
+
 // Manager manages Tailscale state via IPN bus events and subscriber notifications.
 type Manager struct {
 	state                *TailscaleState
@@ -169,16 +180,36 @@ func (m *Manager) fetchAndBroadcast(ctx context.Context) {
 	statusCtx, cancel := context.WithTimeout(ctx, statusTimeout)
 	defer cancel()

-	status, err := m.client.Status(statusCtx)
+	state, err := m.fetchState(statusCtx)
 	if err != nil {
 		log.Warnf("[Tailscale] Failed to fetch status: %v", err)
 		return
 	}

-	state := convertStatus(status)
 	m.updateState(state)
 }

+// fetchState fetches the current status and merges in pref-derived fields
+// (e.g. exit-node LAN access) that are not present in the IPN status itself.
+func (m *Manager) fetchState(ctx context.Context) (*TailscaleState, error) {
+	status, err := m.client.Status(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	state := convertStatus(status)
+
+	// Prefs carry the exit-node LAN-access toggle, which the status does not
+	// expose. Treat a prefs failure as non-fatal so status still updates.
+	if prefs, err := m.client.GetPrefs(ctx); err != nil {
+		log.Warnf("[Tailscale] Failed to fetch prefs: %v", err)
+	} else if prefs != nil {
+		state.ExitNodeAllowLANAccess = prefs.ExitNodeAllowLANAccess
+	}
+
+	return state, nil
+}
+
 func (m *Manager) updateState(state *TailscaleState) {
 	m.stateMutex.Lock()
 	m.state = state
@@ -266,12 +297,62 @@ func (m *Manager) RefreshState() {
 	ctx, cancel := context.WithTimeout(m.ctx, statusTimeout)
 	defer cancel()

-	status, err := m.client.Status(ctx)
+	state, err := m.fetchState(ctx)
 	if err != nil {
 		log.Warnf("[Tailscale] Failed to refresh state: %v", err)
 		return
 	}

-	state := convertStatus(status)
 	m.updateState(state)
 }
+
+// Connect brings the Tailscale backend up (WantRunning = true).
+func (m *Manager) Connect() error {
+	return m.editPrefs(&ipn.MaskedPrefs{
+		Prefs:          ipn.Prefs{WantRunning: true},
+		WantRunningSet: true,
+	})
+}
+
+// Disconnect brings the Tailscale backend down (WantRunning = false).
+func (m *Manager) Disconnect() error {
+	return m.editPrefs(&ipn.MaskedPrefs{
+		Prefs:          ipn.Prefs{WantRunning: false},
+		WantRunningSet: true,
+	})
+}
+
+// SetExitNode selects the exit node identified by its stable node ID. An empty
+// id clears the current exit node. Mirrors `tailscale set --exit-node=<id>`,
+// which also clears any legacy IP-based exit node so a stale ExitNodeIP cannot
+// silently take precedence over the now-empty ID.
+func (m *Manager) SetExitNode(id string) error {
+	return m.editPrefs(&ipn.MaskedPrefs{
+		Prefs:         ipn.Prefs{ExitNodeID: tailcfg.StableNodeID(id)},
+		ExitNodeIDSet: true,
+		ExitNodeIPSet: true,
+	})
+}
+
+// SetAllowLANAccess toggles whether locally accessible subnets remain
+// reachable while an exit node is in use.
+func (m *Manager) SetAllowLANAccess(enabled bool) error {
+	return m.editPrefs(&ipn.MaskedPrefs{
+		Prefs:                     ipn.Prefs{ExitNodeAllowLANAccess: enabled},
+		ExitNodeAllowLANAccessSet: true,
+	})
+}
+
+// editPrefs applies a masked prefs edit and refreshes state so subscribers see
+// the result immediately, in addition to the IPN bus notification it triggers.
+func (m *Manager) editPrefs(mp *ipn.MaskedPrefs) error {
+	ctx, cancel := context.WithTimeout(m.ctx, statusTimeout)
+	defer cancel()
+
+	if _, err := m.client.EditPrefs(ctx, mp); err != nil {
+		return err
+	}
+
+	m.RefreshState()
+	return nil
+}
@@ -12,8 +12,16 @@ import (
 	"github.com/stretchr/testify/require"
 	"tailscale.com/ipn"
 	"tailscale.com/ipn/ipnstate"
+	"tailscale.com/tailcfg"
 )

+// blockingWatch is a watchFn that blocks until the context is cancelled, used
+// by tests that exercise direct manager calls rather than the watch loop.
+func blockingWatch(ctx context.Context, mask ipn.NotifyWatchOpt) (ipnBusWatcher, error) {
+	<-ctx.Done()
+	return nil, ctx.Err()
+}
+
 // mockWatcher yields canned Notify events, then returns err or blocks until Close/context cancel.
 type mockWatcher struct {
 	events []ipn.Notify
@@ -68,8 +76,10 @@ func (w *mockWatcher) Close() error {

 // mockClient implements tailscaleClient for testing.
 type mockClient struct {
-	watchFn  func(ctx context.Context, mask ipn.NotifyWatchOpt) (ipnBusWatcher, error)
-	statusFn func(ctx context.Context) (*ipnstate.Status, error)
+	watchFn     func(ctx context.Context, mask ipn.NotifyWatchOpt) (ipnBusWatcher, error)
+	statusFn    func(ctx context.Context) (*ipnstate.Status, error)
+	getPrefsFn  func(ctx context.Context) (*ipn.Prefs, error)
+	editPrefsFn func(ctx context.Context, mp *ipn.MaskedPrefs) (*ipn.Prefs, error)
 }

 func (c *mockClient) WatchIPNBus(ctx context.Context, mask ipn.NotifyWatchOpt) (ipnBusWatcher, error) {
@@ -80,6 +90,20 @@ func (c *mockClient) Status(ctx context.Context) (*ipnstate.Status, error) {
 	return c.statusFn(ctx)
 }

+func (c *mockClient) GetPrefs(ctx context.Context) (*ipn.Prefs, error) {
+	if c.getPrefsFn != nil {
+		return c.getPrefsFn(ctx)
+	}
+	return &ipn.Prefs{}, nil
+}
+
+func (c *mockClient) EditPrefs(ctx context.Context, mp *ipn.MaskedPrefs) (*ipn.Prefs, error) {
+	if c.editPrefsFn != nil {
+		return c.editPrefsFn(ctx, mp)
+	}
+	return &ipn.Prefs{}, nil
+}
+
 func runningStatus() *ipnstate.Status {
 	return &ipnstate.Status{
 		Version:        "1.94.2",
@@ -296,3 +320,78 @@ func TestManager_RefreshState(t *testing.T) {
 	assert.True(t, state.Connected)
 	assert.Equal(t, "cachyos", state.Self.Hostname)
 }
+
+func TestManager_RefreshState_MergesPrefs(t *testing.T) {
+	client := &mockClient{
+		watchFn:  blockingWatch,
+		statusFn: func(ctx context.Context) (*ipnstate.Status, error) { return runningStatus(), nil },
+		getPrefsFn: func(ctx context.Context) (*ipn.Prefs, error) {
+			return &ipn.Prefs{ExitNodeAllowLANAccess: true}, nil
+		},
+	}
+
+	m := newManager(client)
+	defer m.Close()
+
+	m.RefreshState()
+
+	assert.True(t, m.GetState().ExitNodeAllowLANAccess)
+}
+
+func TestManager_Actions_EditPrefs(t *testing.T) {
+	var captured *ipn.MaskedPrefs
+	client := &mockClient{
+		watchFn:  blockingWatch,
+		statusFn: func(ctx context.Context) (*ipnstate.Status, error) { return runningStatus(), nil },
+		editPrefsFn: func(ctx context.Context, mp *ipn.MaskedPrefs) (*ipn.Prefs, error) {
+			captured = mp
+			return &ipn.Prefs{}, nil
+		},
+	}
+
+	m := newManager(client)
+	defer m.Close()
+
+	require.NoError(t, m.Connect())
+	require.NotNil(t, captured)
+	assert.True(t, captured.WantRunningSet)
+	assert.True(t, captured.WantRunning)
+
+	require.NoError(t, m.Disconnect())
+	assert.True(t, captured.WantRunningSet)
+	assert.False(t, captured.WantRunning)
+
+	require.NoError(t, m.SetExitNode("nABC123"))
+	assert.True(t, captured.ExitNodeIDSet)
+	assert.Equal(t, tailcfg.StableNodeID("nABC123"), captured.ExitNodeID)
+	// ExitNodeIPSet must also be set so a stale legacy ExitNodeIP cannot
+	// override the ID-based selection (mirrors `tailscale set --exit-node`).
+	assert.True(t, captured.ExitNodeIPSet)
+
+	require.NoError(t, m.SetExitNode(""))
+	assert.True(t, captured.ExitNodeIDSet)
+	assert.Equal(t, tailcfg.StableNodeID(""), captured.ExitNodeID)
+	// Clearing must zero both the ID and any legacy IP-based exit node.
+	assert.True(t, captured.ExitNodeIPSet)
+
+	require.NoError(t, m.SetAllowLANAccess(true))
+	assert.True(t, captured.ExitNodeAllowLANAccessSet)
+	assert.True(t, captured.ExitNodeAllowLANAccess)
+}
+
+func TestManager_Actions_PropagateError(t *testing.T) {
+	client := &mockClient{
+		watchFn:  blockingWatch,
+		statusFn: func(ctx context.Context) (*ipnstate.Status, error) { return runningStatus(), nil },
+		editPrefsFn: func(ctx context.Context, mp *ipn.MaskedPrefs) (*ipn.Prefs, error) {
+			return nil, fmt.Errorf("backend rejected edit")
+		},
+	}
+
+	m := newManager(client)
+	defer m.Close()
+
+	assert.Error(t, m.Connect())
+	assert.Error(t, m.SetExitNode("nABC123"))
+	assert.Error(t, m.SetAllowLANAccess(true))
+}
@@ -2,30 +2,32 @@ package tailscale

 // TailscaleState represents the current state of the Tailscale daemon.
 type TailscaleState struct {
-	Connected      bool   `json:"connected"`
-	Version        string `json:"version"`
-	BackendState   string `json:"backendState"`
-	MagicDNSSuffix string `json:"magicDnsSuffix"`
-	TailnetName    string `json:"tailnetName"`
-	Self           Peer   `json:"self"`
-	Peers          []Peer `json:"peers"`
+	Connected              bool   `json:"connected"`
+	Version                string `json:"version"`
+	BackendState           string `json:"backendState"`
+	MagicDNSSuffix         string `json:"magicDnsSuffix"`
+	TailnetName            string `json:"tailnetName"`
+	ExitNodeAllowLANAccess bool   `json:"exitNodeAllowLanAccess"`
+	Self                   Peer   `json:"self"`
+	Peers                  []Peer `json:"peers"`
 }

 // Peer represents a single node in the Tailscale network.
 type Peer struct {
-	ID            string   `json:"id"`
-	Hostname      string   `json:"hostname"`
-	DNSName       string   `json:"dnsName"`
-	TailscaleIP   string   `json:"tailscaleIp"`
-	TailscaleIPv6 string   `json:"tailscaleIpv6,omitempty"`
-	OS            string   `json:"os"`
-	Online        bool     `json:"online"`
-	LastSeen      string   `json:"lastSeen,omitempty"`
-	ExitNode      bool     `json:"exitNode"`
-	Tags          []string `json:"tags,omitempty"`
-	Owner         string   `json:"owner"`
-	Relay         string   `json:"relay,omitempty"`
-	Active        bool     `json:"active"`
-	RxBytes       int64    `json:"rxBytes"`
-	TxBytes       int64    `json:"txBytes"`
+	ID             string   `json:"id"`
+	Hostname       string   `json:"hostname"`
+	DNSName        string   `json:"dnsName"`
+	TailscaleIP    string   `json:"tailscaleIp"`
+	TailscaleIPv6  string   `json:"tailscaleIpv6,omitempty"`
+	OS             string   `json:"os"`
+	Online         bool     `json:"online"`
+	LastSeen       string   `json:"lastSeen,omitempty"`
+	ExitNode       bool     `json:"exitNode"`
+	ExitNodeOption bool     `json:"exitNodeOption"`
+	Tags           []string `json:"tags,omitempty"`
+	Owner          string   `json:"owner"`
+	Relay          string   `json:"relay,omitempty"`
+	Active         bool     `json:"active"`
+	RxBytes        int64    `json:"rxBytes"`
+	TxBytes        int64    `json:"txBytes"`
 }
@@ -25,7 +25,14 @@ PluginComponent {
    }
    ccWidgetIsActive: TailscaleService.connected

-    onCcWidgetToggled: {}
+    onCcWidgetToggled: {
+        if (!TailscaleService.available)
+            return;
+        if (TailscaleService.connected)
+            TailscaleService.disconnectTailscale(null);
+        else
+            TailscaleService.connectTailscale(null);
+    }

    ccDetailContent: Component {
        Rectangle {
@@ -88,6 +95,122 @@ PluginComponent {
                        width: parent.width
                        spacing: Theme.spacingS

+                        // Connection status + connect/disconnect. Always shown
+                        // (when available) so the connection can be toggled from
+                        // the detail, including while disconnected.
+                        RowLayout {
+                            width: parent.width
+                            spacing: Theme.spacingS
+
+                            Column {
+                                Layout.fillWidth: true
+                                Layout.alignment: Qt.AlignVCenter
+                                spacing: 1
+
+                                StyledText {
+                                    text: TailscaleService.connected ? I18n.tr("Connected", "Tailscale connection status: connected") : I18n.tr("Disconnected", "Tailscale connection status: disconnected")
+                                    font.pixelSize: Theme.fontSizeMedium
+                                    font.weight: Font.Medium
+                                    color: Theme.surfaceText
+                                }
+
+                                StyledText {
+                                    visible: TailscaleService.connected && TailscaleService.tailnetName.length > 0
+                                    text: TailscaleService.tailnetName
+                                    font.pixelSize: Theme.fontSizeSmall
+                                    color: Theme.surfaceVariantText
+                                    width: parent.width
+                                    elide: Text.ElideRight
+                                }
+                            }
+
+                            Rectangle {
+                                id: connButton
+                                Layout.alignment: Qt.AlignVCenter
+                                height: 28
+                                radius: 14
+                                width: connButtonRow.implicitWidth + Theme.spacingM * 2
+
+                                readonly property bool isConnected: TailscaleService.connected
+                                color: isConnected ? (connButtonArea.containsMouse ? Theme.errorHover : Theme.surfaceLight) : (connButtonArea.containsMouse ? Theme.primaryHoverLight : Theme.surfaceLight)
+
+                                Row {
+                                    id: connButtonRow
+                                    anchors.centerIn: parent
+                                    spacing: Theme.spacingXS
+
+                                    DankIcon {
+                                        name: connButton.isConnected ? "link_off" : "link"
+                                        size: Theme.fontSizeSmall
+                                        color: connButton.isConnected ? Theme.surfaceText : Theme.primary
+                                        anchors.verticalCenter: parent.verticalCenter
+                                    }
+
+                                    StyledText {
+                                        text: connButton.isConnected ? I18n.tr("Disconnect", "Tailscale disconnect button") : I18n.tr("Connect", "Tailscale connect button")
+                                        font.pixelSize: Theme.fontSizeSmall
+                                        font.weight: Font.Medium
+                                        color: connButton.isConnected ? Theme.surfaceText : Theme.primary
+                                        anchors.verticalCenter: parent.verticalCenter
+                                    }
+                                }
+
+                                MouseArea {
+                                    id: connButtonArea
+                                    anchors.fill: parent
+                                    hoverEnabled: true
+                                    cursorShape: Qt.PointingHandCursor
+                                    onClicked: {
+                                        if (TailscaleService.connected)
+                                            TailscaleService.disconnectTailscale(null);
+                                        else
+                                            TailscaleService.connectTailscale(null);
+                                    }
+                                }
+                            }
+                        }
+
+                        // Connection controls: exit node picker + LAN access.
+                        // Only meaningful while the backend is connected.
+                        Column {
+                            id: controlsColumn
+                            width: parent.width
+                            spacing: Theme.spacingS
+                            visible: TailscaleService.connected
+
+                            readonly property string noneLabel: I18n.tr("None", "Tailscale exit node: none selected")
+
+                            DankDropdown {
+                                width: parent.width
+                                text: I18n.tr("Exit node", "Tailscale exit node selector label")
+                                currentValue: TailscaleService.currentExitNode ? TailscaleService.currentExitNode.hostname : controlsColumn.noneLabel
+                                options: {
+                                    const opts = [controlsColumn.noneLabel];
+                                    for (const p of TailscaleService.exitNodeOptions)
+                                        opts.push(p.hostname);
+                                    return opts;
+                                }
+                                onValueChanged: value => {
+                                    if (value === controlsColumn.noneLabel) {
+                                        TailscaleService.clearExitNode(null);
+                                        return;
+                                    }
+                                    const peer = TailscaleService.exitNodeOptions.find(p => p.hostname === value);
+                                    if (peer)
+                                        TailscaleService.setExitNode(peer.id, null);
+                                }
+                            }
+
+                            DankToggle {
+                                width: parent.width
+                                text: I18n.tr("Allow LAN access", "Tailscale allow LAN access toggle")
+                                description: I18n.tr("Reach local network devices while using an exit node", "Tailscale allow LAN access description")
+                                visible: TailscaleService.currentExitNode !== null
+                                checked: TailscaleService.exitNodeAllowLanAccess
+                                onToggled: value => TailscaleService.setAllowLanAccess(value, null)
+                            }
+                        }
+
                        // Search bar + refresh button
                        RowLayout {
                            width: parent.width
@@ -41,6 +41,7 @@ Singleton {
    property string tailnetName: ""
    property var selfNode: null
    property var peers: []
+    property bool exitNodeAllowLanAccess: false

    property bool available: false
    property bool stateInitialized: false
@@ -56,6 +57,19 @@ Singleton {

    readonly property var onlinePeers: allPeersList.filter(p => p.online)

+    // Peers that may be used as an exit node (offered && approved). Self is
+    // excluded: a node can never route through itself, and tailscaled rejects it.
+    readonly property var exitNodeOptions: allPeersList.filter(p => p && p.exitNodeOption && p !== selfNode)
+
+    // The currently selected exit node, or null if none is in use.
+    readonly property var currentExitNode: {
+        for (const p of allPeersList) {
+            if (p && p.exitNode)
+                return p;
+        }
+        return null;
+    }
+
    readonly property var myPeers: {
        if (!selfNode)
            return allPeersList;
@@ -141,6 +155,7 @@ Singleton {
        tailnetName = data.tailnetName || "";
        selfNode = data.self || null;
        peers = data.peers || [];
+        exitNodeAllowLanAccess = data.exitNodeAllowLanAccess || false;
    }

    function refresh(callback) {
@@ -152,6 +167,45 @@ Singleton {
        });
    }

+    // sendAction issues a state-changing request. The backend refreshes and
+    // broadcasts on success, so subscribers update without an extra getStatus.
+    function sendAction(method, params, callback) {
+        if (!available)
+            return;
+        DMSService.sendRequest(method, params, response => {
+            if (response.error) {
+                root.log.warn(method + " failed: " + response.error);
+                ToastService.showError(I18n.tr("Tailscale action failed", "Toast shown when a Tailscale write action is rejected"), response.error);
+            }
+            if (callback)
+                callback(response);
+        });
+    }
+
+    function connectTailscale(callback) {
+        sendAction("tailscale.connect", null, callback);
+    }
+
+    function disconnectTailscale(callback) {
+        sendAction("tailscale.disconnect", null, callback);
+    }
+
+    function setExitNode(id, callback) {
+        sendAction("tailscale.setExitNode", {
+            "id": id || ""
+        }, callback);
+    }
+
+    function clearExitNode(callback) {
+        setExitNode("", callback);
+    }
+
+    function setAllowLanAccess(enabled, callback) {
+        sendAction("tailscale.setAllowLanAccess", {
+            "enabled": enabled
+        }, callback);
+    }
+
    function isMine(peer) {
        const myOwner = selfNode ? (selfNode.owner || "") : "";
        if (peer.owner === myOwner && myOwner !== "")