+
+ /** Explicit Congestion Notification (ECN)
+ *
+ * * 1: In tunnel mode, enable outer header ECN Field copied from
+ * inner header in tunnel encapsulation, or inner header ECN
+ * field construction in decapsulation.
+ * * 0: Inner/outer header are not modified.
+ */
+ uint32_t ecn : 1;
+
+ /** Security statistics
+ *
+ * * 1: Enable per session security statistics collection for
+ * this SA, if supported by the driver.
+ * * 0: Disable per session security statistics collection for this SA.
+ */
+ uint32_t stats : 1;