2 files changed, 16 insertions, 1 deletions

diff --git a/include/linux/in6.h b/include/linux/in6.h
index 2a61c82af115..f674000c6c99 100644
--- a/include/linux/in6.h
+++ b/include/linux/in6.h
@@ -249,4 +249,15 @@ struct in6_flowlabel_req
  * IP6T_SO_GET_REVISION_TARGET  69
  */
 
+/* RFC5014: Source address selection */
+#define IPV6_ADDR_PREFERENCES   72
+
+#define IPV6_PREFER_SRC_TMP             0x0001
+#define IPV6_PREFER_SRC_PUBLIC          0x0002
+#define IPV6_PREFER_SRC_PUBTMP_DEFAULT  0x0100
+#define IPV6_PREFER_SRC_COA             0x0004
+#define IPV6_PREFER_SRC_HOME            0x0400
+#define IPV6_PREFER_SRC_CGA             0x0008
+#define IPV6_PREFER_SRC_NONCGA          0x0800
+
 #endif
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 87ae4e389ce1..c9ba0da16ce9 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -322,7 +322,11 @@ struct ipv6_pinfo {
         __u8                    recverr:1,
                                 sndflow:1,
                                 pmtudisc:2,
-                                ipv6only:1;
+                                ipv6only:1,
+                                srcprefs:3;     /* 001: prefer temporary address
+                                                 * 010: prefer public address
+                                                 * 100: prefer care-of address
+                                                 */
         __u8                    tclass;
 
         __u32                   dst_cookie;