初版功能完成

internal/overlay/clientwg/adapter.go

@@ -0,0 +1,22 @@
+package clientwg
+
+import (
+	"errors"
+	"log/slog"
+
+	"golang.zx2c4.com/wireguard/tun"
+)
+
+// Adapter supplies the one RemLink TUN device created by platform/windows.
+type Adapter interface {
+	Device() tun.Device
+}
+
+// NewFromAdapter transfers ownership of the Adapter's live TUN session to an
+// embedded wireguard-go Device.
+func NewFromAdapter(adapter Adapter, logger *slog.Logger) (*Device, error) {
+	if adapter == nil {
+		return nil, errors.New("RemLink adapter must not be nil")
+	}
+	return NewDevice(adapter.Device(), logger)
+}