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4950fe60bd
Fixes #5185 Change-Id: I850dd532559af78c3895e2924f8237ccc328449d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
33 lines
883 B
Go
33 lines
883 B
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 controlknobs contains client options configurable from control which can be turned on
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// or off. The ability to turn options on and off is for incrementally adding features in.
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package controlknobs
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import (
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"sync/atomic"
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"tailscale.com/envknob"
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)
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// disableUPnP indicates whether to attempt UPnP mapping.
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var disableUPnP atomic.Bool
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func init() {
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SetDisableUPnP(envknob.Bool("TS_DISABLE_UPNP"))
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}
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// DisableUPnP reports the last reported value from control
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// whether UPnP portmapping should be disabled.
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func DisableUPnP() bool {
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return disableUPnP.Load()
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}
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// SetDisableUPnP sets whether control says that UPnP should be
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// disabled.
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func SetDisableUPnP(v bool) {
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disableUPnP.Store(v)
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}
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