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Retry wintun creation (#985)

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Nate Brown 2023-10-16 10:06:43 -05:00 committed by GitHub
parent c289c7a7ca
commit 5fccbb8676
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1 changed files with 9 additions and 2 deletions
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11
overlay/tun_wintun_windows.go
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@ -54,9 +54,16 @@ func newWinTun(l *logrus.Logger, deviceName string, cidr *net.IPNet, defaultMTU
return nil, fmt.Errorf("generate GUID failed: %w", err)
}
tunDevice, err := wintun.CreateTUNWithRequestedGUID(deviceName, guid, defaultMTU)
var tunDevice wintun.Device
tunDevice, err = wintun.CreateTUNWithRequestedGUID(deviceName, guid, defaultMTU)
if err != nil {
return nil, fmt.Errorf("create TUN device failed: %w", err)
// Windows 10 has an issue with unclean shutdowns not fully cleaning up the wintun device.
// Trying a second time resolves the issue.
l.WithError(err).Debug("Failed to create wintun device, retrying")
tunDevice, err = wintun.CreateTUNWithRequestedGUID(deviceName, guid, defaultMTU)
if err != nil {
return nil, fmt.Errorf("create TUN device failed: %w", err)
}
}
routeTree, err := makeRouteTree(l, routes, false)