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db85384f9c
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 #391 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 #1866
RELNOTE=default to userspace-networking mode on gokrazy
Change-Id: I3766159a294738597b4b30629d2860312dbb7609
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
93 lines
1.8 KiB
Go
93 lines
1.8 KiB
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build !windows && !js
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// +build !windows,!js
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package paths
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import (
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"fmt"
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"os"
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"path/filepath"
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"runtime"
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"golang.org/x/sys/unix"
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"tailscale.com/version/distro"
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)
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func init() {
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stateFileFunc = stateFileUnix
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}
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func statePath() string {
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switch runtime.GOOS {
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case "linux":
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return "/var/lib/tailscale/tailscaled.state"
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case "freebsd", "openbsd":
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return "/var/db/tailscale/tailscaled.state"
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case "darwin":
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return "/Library/Tailscale/tailscaled.state"
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default:
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return ""
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}
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}
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func stateFileUnix() string {
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if distro.Get() == distro.Gokrazy {
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return "/perm/tailscaled/tailscaled.state"
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}
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path := statePath()
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if path == "" {
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return ""
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}
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try := path
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for i := 0; i < 3; i++ { // check writability of the file, /var/lib/tailscale, and /var/lib
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err := unix.Access(try, unix.O_RDWR)
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if err == nil {
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return path
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}
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try = filepath.Dir(try)
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}
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if os.Getuid() == 0 {
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return ""
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}
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// For non-root users, fall back to $XDG_DATA_HOME/tailscale/*.
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return filepath.Join(xdgDataHome(), "tailscale", "tailscaled.state")
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}
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func xdgDataHome() string {
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if e := os.Getenv("XDG_DATA_HOME"); e != "" {
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return e
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}
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return filepath.Join(os.Getenv("HOME"), ".local/share")
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}
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func ensureStateDirPerms(dir string) error {
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if filepath.Base(dir) != "tailscale" {
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return nil
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}
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fi, err := os.Stat(dir)
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if err != nil {
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return err
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}
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if !fi.IsDir() {
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return fmt.Errorf("expected %q to be a directory; is %v", dir, fi.Mode())
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}
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const perm = 0700
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if fi.Mode().Perm() == perm {
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// Already correct.
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return nil
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}
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return os.Chmod(dir, perm)
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}
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// LegacyStateFilePath is not applicable to UNIX; it is just stubbed out.
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func LegacyStateFilePath() string {
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return ""
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}
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