Use nf_conntrack headers instead of ip_conntrack ones and add sanitized versions.
diff --git a/extensions/libipt_connbytes.c b/extensions/libipt_connbytes.c
index 42e1ab5..f6439c2 100644
--- a/extensions/libipt_connbytes.c
+++ b/extensions/libipt_connbytes.c
@@ -5,7 +5,7 @@
#include <stdlib.h>
#include <getopt.h>
#include <iptables.h>
-#include <linux/netfilter_ipv4/ip_conntrack.h>
+#include <linux/netfilter/nf_conntrack_common.h>
#include <linux/netfilter_ipv4/ipt_connbytes.h>
/* Function which prints out usage message. */