kernel_ipsec_t.query_sa() additionally returns the number of processed packets

src/libhydra/kernel/kernel_interface.h

@@ -194,11 +194,12 @@ struct kernel_interface_t {
 	 * @param protocol		protocol for this SA (ESP/AH)
 	 * @param mark			optional mark for this SA
 	 * @param[out] bytes	the number of bytes processed by SA
+	 * @param[out] packets	number of packets processed by SA
 	 * @return				SUCCESS if operation completed
 	 */
 	status_t (*query_sa) (kernel_interface_t *this, host_t *src, host_t *dst,
 						  u_int32_t spi, u_int8_t protocol, mark_t mark,
-						  u_int64_t *bytes);
+						  u_int64_t *bytes, u_int64_t *packets);
 
 	/**
 	 * Delete a previously installed SA from the SAD.