Method Close

tailnet/conn.go:667–711

Close shuts down the Wireguard connection.

()

// Close shuts down the Wireguard connection.
func (c *Conn) Close() error {
	c.logger.Info(context.Background(), "closing tailnet Conn")
	c.watchCancel()
	c.configMaps.close()
	c.nodeUpdater.close()
	c.mutex.Lock()
	select {
	case <-c.closed:
		c.mutex.Unlock()
		return nil
	default:
	}
	close(c.closed)
	c.telemetryWg.Wait()
	c.mutex.Unlock()

	var wg sync.WaitGroup
	defer wg.Wait()

	if c.trafficStats != nil {
		wg.Add(1)
		go func() {
			defer wg.Done()
			ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
			defer cancel()
			_ = c.trafficStats.Shutdown(ctx)
		}()
	}

	_ = c.netStack.Close()
	c.logger.Debug(context.Background(), "closed netstack")
	_ = c.wireguardMonitor.Close()
	_ = c.dialer.Close()
	// Stops internals, e.g. tunDevice, magicConn and dnsManager.
	c.wireguardEngine.Close()

	c.mutex.Lock()
	for _, l := range c.listeners {
		_ = l.closeNoLock()
	}
	c.listeners = nil
	c.mutex.Unlock()

	return nil
}

func (c *Conn) isClosed() bool {
	select {