1 files changed, 5 insertions, 0 deletions
diff --git a/netlink.h b/netlink.h
index 9081f46..77b640c 100644
--- a/netlink.h
+++ b/netlink.h
@@ -3,9 +3,14 @@
  * Author: Stefano Brivio <sbrivio@redhat.com>
  */
 
+#ifndef NETLINK_H
+#define NETLINK_H
+
 int nl_sock_init(struct ctx *c);
 unsigned int nl_get_ext_if(int *v4, int *v6);
 void nl_route(int ns, unsigned int ifi, sa_family_t af, void *gw);
 void nl_addr(int ns, unsigned int ifi, sa_family_t af,
 	     void *addr, int *prefix_len, void *addr_l);
 void nl_link(int ns, unsigned int ifi, void *mac, int up, int mtu);
+
+#endif /* NETLINK_H */