1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/ipv6_route.h b/include/linux/ipv6_route.h
index d7c41d1d706a..b323ff577967 100644
--- a/include/linux/ipv6_route.h
+++ b/include/linux/ipv6_route.h
@@ -23,12 +23,22 @@
 #define RTF_NONEXTHOP   0x00200000      /* route with no nexthop        */
 #define RTF_EXPIRES     0x00400000
 
+#define RTF_ROUTEINFO   0x00800000      /* route information - RA       */
+
 #define RTF_CACHE       0x01000000      /* cache entry                  */
 #define RTF_FLOW        0x02000000      /* flow significant route       */
 #define RTF_POLICY      0x04000000      /* policy route                 */
 
+#define RTF_PREF(pref)  ((pref) << 27)
+#define RTF_PREF_MASK   0x18000000
+
 #define RTF_LOCAL       0x80000000
 
+#ifdef __KERNEL__
+#define IPV6_EXTRACT_PREF(flag) (((flag) & RTF_PREF_MASK) >> 27)
+#define IPV6_DECODE_PREF(pref)  ((pref) ^ 2)    /* 1:low,2:med,3:high */
+#endif
+
 struct in6_rtmsg {
         struct in6_addr         rtmsg_dst;
         struct in6_addr         rtmsg_src;