#include <linux/rtnetlink.h>
/* rule is permanent, and cannot be deleted */
-#define FIB_RULE_PERMANENT 1
-#define FIB_RULE_INVERT 2
-#define FIB_RULE_UNRESOLVED 4
-#define FIB_RULE_DEV_DETACHED 8
+#define FIB_RULE_PERMANENT 0x00000001
+#define FIB_RULE_INVERT 0x00000002
+#define FIB_RULE_UNRESOLVED 0x00000004
+#define FIB_RULE_DEV_DETACHED 0x00000008
+
+/* try to find source address in routing lookups */
+#define FIB_RULE_FIND_SADDR 0x00010000
struct fib_rule_hdr
{