netlink-protocol: Define missing symbols.

OVS fails to build with xenddk-56100build3926 because it has an
outdated genetlink header.

diff --git a/lib/netlink-protocol.h b/lib/netlink-protocol.h
index 1b5fa71..64f773e 100644 (file)
--- a/lib/netlink-protocol.h
+++ b/lib/netlink-protocol.h
@@ -36,6 +36,25 @@
 #ifdef HAVE_NETLINK
 #include <linux/netlink.h>
 #include <linux/genetlink.h>
+
+/* Some Xenddks have an outdated genetlink header file which doesn't have some
+ * symbols it should. */
+#ifndef CTRL_ATTR_MCAST_GRP_MAX
+
+#undef CTRL_ATTR_MAX
+#define CTRL_ATTR_MAX 7
+#define CTRL_ATTR_MCAST_GROUPS 7
+
+enum {
+       CTRL_ATTR_MCAST_GRP_UNSPEC,
+       CTRL_ATTR_MCAST_GRP_NAME,
+       CTRL_ATTR_MCAST_GRP_ID,
+       __CTRL_ATTR_MCAST_GRP_MAX,
+};
+
+#define CTRL_ATTR_MCAST_GRP_MAX (__CTRL_ATTR_MCAST_GRP_MAX - 1)
+#endif /* CTRL_ATTR_MCAST_GRP_MAX */
+
 #else
 #define NETLINK_GENERIC         16