Move Linux client & common packages into a public repo.

wgengine/router_default.go

@@ -0,0 +1,17 @@
+// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !windows,!linux,!darwin
+
+package wgengine
+
+import (
+	"github.com/tailscale/wireguard-go/device"
+	"github.com/tailscale/wireguard-go/tun"
+	"tailscale.com/logger"
+)
+
+func NewUserspaceRouter(logf logger.Logf, tunname string, dev *device.Device, tuntap tun.Device, netChanged func()) Router {
+	return NewFakeRouter(logf, tunname, dev, tuntap)
+}