-#define NFSEXP_UIDMAP 0x0040
-#define NFSEXP_KERBEROS 0x0080 /* not available */
-#define NFSEXP_SUNSECURE 0x0100
-#define NFSEXP_CROSSMNT 0x0200 /* not available */
-#define NFSEXP_ALLFLAGS 0x03FF
+/* 40, 80, 100 unused */
+#define NFSEXP_NOHIDE 0x0200
+#define NFSEXP_NOSUBTREECHECK 0x0400
+#define NFSEXP_NOAUTHNLM 0x0800
+#define NFSEXP_FSID 0x2000
+#define NFSEXP_CROSSMOUNT 0x4000
+#define NFSEXP_NOACL 0x8000 /* reserved for possible ACL related use */
+#define NFSEXP_ALLFLAGS 0xFFFF