mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-26 11:35:35 +00:00
31 lines
880 B
Go
31 lines
880 B
Go
|
// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
// Package netknob has Tailscale network knobs.
|
||
|
|
package netknob
|
||
|
|
|
||
|
|
import (
|
||
|
|
"runtime"
|
||
|
|
"time"
|
||
|
|
)
|
||
|
|
|
||
|
|
// PlatformTCPKeepAlive returns the default net.Dialer.KeepAlive
|
||
|
|
// value for the current runtime.GOOS.
|
||
|
|
func PlatformTCPKeepAlive() time.Duration {
|
||
|
|
switch runtime.GOOS {
|
||
|
|
case "ios", "android":
|
||
|
|
// Disable TCP keep-alives on mobile platforms.
|
||
|
|
// See https://github.com/golang/go/issues/48622.
|
||
|
|
//
|
||
|
|
// TODO(bradfitz): in 1.17.x, try disabling TCP
|
||
|
|
// keep-alives on for all platforms.
|
||
|
|
return -1
|
||
|
|
}
|
||
|
|
|
||
|
|
// Otherwise, default to 30 seconds, which is mostly what we
|
||
|
|
// used to do. In some places we used the zero value, which Go
|
||
|
|
// defaults to 15 seconds. But 30 seconds is fine.
|
||
|
|
return 30 * time.Second
|
||
|
|
}
|