Brad Fitzpatrick db85384f9c cmd/tailscaled: default to userspace-networking mode on gokrazy, set paths
One of the current few steps to run Tailscale on gokrazy is to
specify the --tun=userspace-networking flag:

    https://gokrazy.org/userguide/install/tailscale/

Instead, make it the default for now. Later we can change the
default to kernel mode if available and fall back to userspace
mode like Synology, once  is done.

Likewise, set default paths for Gokrazy, as its filesystem hierarchy
is not the Linux standard one. Instead, use the conventional paths as
documented at https://gokrazy.org/userguide/install/tailscale/.

Updates 

RELNOTE=default to userspace-networking mode on gokrazy

Change-Id: I3766159a294738597b4b30629d2860312dbb7609
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-01 20:34:45 -08:00

76 lines
2.2 KiB
Go

// 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.
// Package paths returns platform and user-specific default paths to
// Tailscale files and directories.
package paths
import (
"os"
"path/filepath"
"runtime"
"sync/atomic"
"tailscale.com/version/distro"
)
// AppSharedDir is a string set by the iOS or Android app on start
// containing a directory we can read/write in.
var AppSharedDir atomic.Value
// DefaultTailscaledSocket returns the path to the tailscaled Unix socket
// or the empty string if there's no reasonable default.
func DefaultTailscaledSocket() string {
if runtime.GOOS == "windows" {
return ""
}
if runtime.GOOS == "darwin" {
return "/var/run/tailscaled.socket"
}
switch distro.Get() {
case distro.Synology:
// TODO(maisem): be smarter about this. We can parse /etc/VERSION.
const dsm6Sock = "/var/packages/Tailscale/etc/tailscaled.sock"
const dsm7Sock = "/var/packages/Tailscale/var/tailscaled.sock"
if fi, err := os.Stat(dsm6Sock); err == nil && !fi.IsDir() {
return dsm6Sock
}
if fi, err := os.Stat(dsm7Sock); err == nil && !fi.IsDir() {
return dsm7Sock
}
case distro.Gokrazy:
return "/perm/tailscaled/tailscaled.sock"
}
if fi, err := os.Stat("/var/run"); err == nil && fi.IsDir() {
return "/var/run/tailscale/tailscaled.sock"
}
return "tailscaled.sock"
}
var stateFileFunc func() string
// DefaultTailscaledStateFile returns the default path to the
// tailscaled state file, or the empty string if there's no reasonable
// default value.
func DefaultTailscaledStateFile() string {
if f := stateFileFunc; f != nil {
return f()
}
if runtime.GOOS == "windows" {
return filepath.Join(os.Getenv("ProgramData"), "Tailscale", "server-state.conf")
}
return ""
}
// MkStateDir ensures that dirPath, the daemon's configurtaion directory
// containing machine keys etc, both exists and has the correct permissions.
// We want it to only be accessible to the user the daemon is running under.
func MkStateDir(dirPath string) error {
if err := os.MkdirAll(dirPath, 0700); err != nil {
return err
}
return ensureStateDirPerms(dirPath)
}