93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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// Package paths returns platform and user-specific default paths to
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// Tailscale files and directories.
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package paths
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import (
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"os"
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"path/filepath"
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"runtime"
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"tailscale.com/syncs"
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"tailscale.com/version/distro"
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)
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// AppSharedDir is a string set by the iOS or Android app on start
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// containing a directory we can read/write in.
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var AppSharedDir syncs.AtomicValue[string]
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// DefaultTailscaledSocket returns the path to the tailscaled Unix socket
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// or the empty string if there's no reasonable default.
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func DefaultTailscaledSocket() string {
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if runtime.GOOS == "windows" {
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return `\\.\pipe\ProtectedPrefix\Administrators\Tailscale\tailscaled`
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}
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if runtime.GOOS == "darwin" {
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return "/var/run/tailscaled.socket"
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}
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if runtime.GOOS == "plan9" {
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return "/srv/tailscaled.sock"
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}
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switch distro.Get() {
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case distro.Synology:
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if distro.DSMVersion() == 6 {
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return "/var/packages/Tailscale/etc/tailscaled.sock"
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}
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// DSM 7 (and higher? or failure to detect.)
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return "/var/packages/Tailscale/var/tailscaled.sock"
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case distro.Gokrazy:
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return "/perm/tailscaled/tailscaled.sock"
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case distro.QNAP:
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return "/tmp/tailscale/tailscaled.sock"
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}
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if fi, err := os.Stat("/var/run"); err == nil && fi.IsDir() {
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return "/var/run/tailscale/tailscaled.sock"
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}
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return "tailscaled.sock"
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}
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// Overridden in init by OS-specific files.
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var (
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stateFileFunc func() string
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// ensureStateDirPerms applies a restrictive ACL/chmod
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// to the provided directory.
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ensureStateDirPerms = func(string) error { return nil }
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)
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// DefaultTailscaledStateFile returns the default path to the
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// tailscaled state file, or the empty string if there's no reasonable
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// default value.
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func DefaultTailscaledStateFile() string {
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if f := stateFileFunc; f != nil {
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return f()
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}
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if runtime.GOOS == "windows" {
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return filepath.Join(os.Getenv("ProgramData"), "Tailscale", "server-state.conf")
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}
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return ""
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}
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// MkStateDir ensures that dirPath, the daemon's configuration directory
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// containing machine keys etc, both exists and has the correct permissions.
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// We want it to only be accessible to the user the daemon is running under.
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func MkStateDir(dirPath string) error {
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if err := os.MkdirAll(dirPath, 0700); err != nil {
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return err
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}
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return ensureStateDirPerms(dirPath)
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}
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// LegacyStateFilePath returns the legacy path to the state file when
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// it was stored under the current user's %LocalAppData%.
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//
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// It is only called on Windows.
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func LegacyStateFilePath() string {
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if runtime.GOOS == "windows" {
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return filepath.Join(os.Getenv("LocalAppData"), "Tailscale", "server-state.conf")
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}
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return ""
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}
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