wgengine/magicsock: add client flag and envknob to disable heartbeat (#5638)

Baby steps towards turning off heartbeat pings entirely as per #540. This doesn't change any current magicsock functionality and requires additional changes to send/disco paths before the flag can be turned on. Updates #540 Change-Id: Idc9a72748e74145b068d67e6dd4a4ffe3932efd0 Signed-off-by: Jenny Zhang <jz@tailscale.com> Signed-off-by: Jenny Zhang <jz@tailscale.com>
2022-09-16 23:48:46 -04:00
parent 65c24b6334
commit 5c42990c2f
4 changed files with 24 additions and 5 deletions
@@ -18,6 +18,7 @@ func debugOmitLocalAddresses() bool { return false }
 func logDerpVerbose() bool          { return false }
 func debugReSTUNStopOnIdle() bool   { return false }
 func debugAlwaysDERP() bool         { return false }
+func debugEnableSilentDisco() bool  { return false }
 func debugUseDerpRouteEnv() string  { return "" }
 func debugUseDerpRoute() opt.Bool   { return "" }