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39e35379d4
So wgengine/router is just the docs + entrypoint + types, and then underscore importing wgengine/router/osrouter registers the constructors with the wgengine/router package. Then tsnet can not pull those in. Updates #17313 Change-Id: If313226f6987d709ea9193c8f16a909326ceefe7 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
28 lines
825 B
Go
28 lines
825 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package osrouter
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import (
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"tailscale.com/net/netmon"
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"tailscale.com/types/logger"
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"tailscale.com/wgengine/router"
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)
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func init() {
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router.HookCleanUp.Set(func(logf logger.Logf, netMon *netmon.Monitor, ifName string) {
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cleanUp(logf, ifName)
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})
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}
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func cleanUp(logf logger.Logf, interfaceName string) {
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// If the interface was left behind, ifconfig down will not remove it.
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// In fact, this will leave a system in a tainted state where starting tailscaled
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// will result in "interface tailscale0 already exists"
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// until the defunct interface is ifconfig-destroyed.
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ifup := []string{"ifconfig", interfaceName, "destroy"}
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if out, err := cmd(ifup...).CombinedOutput(); err != nil {
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logf("ifconfig destroy: %v\n%s", err, out)
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}
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}
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