--- zzzz-none-000/linux-4.4.271/include/uapi/linux/pfkeyv2.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/uapi/linux/pfkeyv2.h	2023-04-19 10:22:30.000000000 +0000
@@ -38,6 +38,7 @@
 	__u8		sadb_sa_auth;
 	__u8		sadb_sa_encrypt;
 	__u32	sadb_sa_flags;
+	__u32	sadb_sa_encap_mode;
 } __attribute__((packed));
 /* sizeof(struct sadb_sa) == 16 */