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71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
30 lines
831 B
Go
30 lines
831 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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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 disableUPnPControl atomic.Bool
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var disableUPnpEnv = envknob.RegisterBool("TS_DISABLE_UPNP")
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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 disableUPnPControl.Load() || disableUPnpEnv()
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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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disableUPnPControl.Store(v)
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}
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