diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index c724c9d..36a4044 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -90,6 +90,15 @@
 	struct nlmsghdr msg;
 };
 
+#define NETLINK_ADD_MEMBERSHIP	1
+#define NETLINK_DROP_MEMBERSHIP	2
+#define NETLINK_PKTINFO		3
+
+struct nl_pktinfo
+{
+	__u32	group;
+};
+
 #define NET_MAJOR 36		/* Major 36 is reserved for networking 						*/
 
 enum {
diff --git a/include/linux/socket.h b/include/linux/socket.h
index ddf2255..acc55aa 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -272,6 +272,7 @@
 #define SOL_NETBEUI	267
 #define SOL_LLC		268
 #define SOL_DCCP	269
+#define SOL_NETLINK	270
 
 /* IPX options */
 #define IPX_TYPE	1