tailscale/envknob/features.go

40 lines
1.1 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package envknob
import (
"errors"
"runtime"
"tailscale.com/version"
"tailscale.com/version/distro"
)
// CanRunTailscaleSSH reports whether serving a Tailscale SSH server is
// supported for the current os/distro.
func CanRunTailscaleSSH() error {
switch runtime.GOOS {
case "linux":
if distro.Get() == distro.Synology && !UseWIPCode() {
return errors.New("The Tailscale SSH server does not run on Synology.")
}
if distro.Get() == distro.QNAP && !UseWIPCode() {
return errors.New("The Tailscale SSH server does not run on QNAP.")
}
// otherwise okay
case "darwin":
// okay only in tailscaled mode for now.
if version.IsSandboxedMacOS() {
return errors.New("The Tailscale SSH server does not run in sandboxed Tailscale GUI builds.")
}
case "freebsd", "openbsd":
default:
return errors.New("The Tailscale SSH server is not supported on " + runtime.GOOS)
}
if !CanSSHD() {
return errors.New("The Tailscale SSH server has been administratively disabled.")
}
return nil
}