mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-29 13:05:46 +00:00
105 lines
2.5 KiB
Go
105 lines
2.5 KiB
Go
// Copyright (c) 2021 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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package main
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import (
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"os/exec"
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)
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func init() {
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installSystemDaemon = installSystemDaemonDarwin
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}
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// darwinLaunchdPlist is the launchd.plist that's written to
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// /Library/LaunchDaemons/com.tailscale.tailscaled.plist or (in the
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// future) a user-specific location.
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//
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// See man launchd.plist.
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const darwinLaunchdPlist = `
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>Label</key>
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<string>com.tailscale.tailscaled</string>
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<key>ProgramArguments</key>
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<array>
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<string>/usr/local/bin/tailscaled</string>
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</array>
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<key>RunAtLoad</key>
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<true/>
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</dict>
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</plist>
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`
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const sysPlist = "/Library/LaunchDaemons/com.tailscale.tailscaled.plist"
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const targetBin = "/usr/local/bin/tailscaled"
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const service = "system/com.tailscale.tailscaled"
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func installSystemDaemonDarwin() (err error) {
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defer func() {
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if err != nil && os.Getuid() != 0 {
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err = fmt.Errorf("%w; try running tailscaled with sudo", err)
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}
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}()
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// Copy ourselves to /usr/local/bin/tailscaled.
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exe, err := os.Executable()
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if err != nil {
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return fmt.Errorf("failed to find our own executable path: %w", err)
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}
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tmpBin := targetBin + ".tmp"
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f, err := os.Create(tmpBin)
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if err != nil {
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return err
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}
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self, err := os.Open(exe)
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if err != nil {
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f.Close()
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return err
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}
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_, err = io.Copy(f, self)
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self.Close()
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if err != nil {
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f.Close()
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return err
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}
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if err := f.Close(); err != nil {
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return err
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}
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if err := os.Chmod(tmpBin, 0755); err != nil {
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return err
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}
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if err := os.Rename(tmpBin, targetBin); err != nil {
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return err
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}
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// Two best effort commands to stop a previous run.
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exec.Command("launchctl", "stop", "system/com.tailscale.tailscaled").Run()
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exec.Command("launchctl", "unload", sysPlist).Run()
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if err := ioutil.WriteFile(sysPlist, []byte(darwinLaunchdPlist), 0700); err != nil {
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return err
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}
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if out, err := exec.Command("launchctl", "load", sysPlist).CombinedOutput(); err != nil {
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return fmt.Errorf("error running launchctl load %s: %v, %s", sysPlist, err, out)
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}
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if out, err := exec.Command("launchctl", "start", service).CombinedOutput(); err != nil {
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return fmt.Errorf("error running launchctl start %s: %v, %s", service, err, out)
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}
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return nil
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}
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