1 files changed, 16 insertions, 0 deletions
diff --git a/control/controlknobs/controlknobs.go b/control/controlknobs/controlknobs.go
index ace56264c..dc24faac2 100644
--- a/control/controlknobs/controlknobs.go
+++ b/control/controlknobs/controlknobs.go
@@ -39,3 +39,19 @@ type Knobs struct {
 	// running in magicsock, even when idle.
 	ForceBackgroundSTUN atomic.Bool
 }
+
+// AsDebugJSON returns k as something that can be marshalled with json.Marshal
+// for debug.
+func (k *Knobs) AsDebugJSON() map[string]any {
+	if k == nil {
+		return nil
+	}
+	return map[string]any{
+		"DisableUPnP":         k.DisableUPnP.Load(),
+		"DisableDRPO":         k.DisableDRPO.Load(),
+		"KeepFullWGConfig":    k.KeepFullWGConfig.Load(),
+		"RandomizeClientPort": k.RandomizeClientPort.Load(),
+		"OneCGNAT":            k.OneCGNAT.Load(),
+		"ForceBackgroundSTUN": k.ForceBackgroundSTUN.Load(),
+	}
+}