+static unsigned int
+notrack_tg(struct sk_buff *skb, const struct xt_action_param *par)
+{
+ /* Previously seen (loopback)? Ignore. */
+ if (skb->nfct != NULL)
+ return XT_CONTINUE;
+
+ skb->nfct = &nf_ct_untracked_get()->ct_general;
+ skb->nfctinfo = IP_CT_NEW;
+ nf_conntrack_get(skb->nfct);
+
+ return XT_CONTINUE;
+}
+
+static int notrack_chk(const struct xt_tgchk_param *par)
+{
+ if (!par->net->xt.notrack_deprecated_warning) {
+ pr_info("netfilter: NOTRACK target is deprecated, "
+ "use CT instead or upgrade iptables\n");
+ par->net->xt.notrack_deprecated_warning = true;
+ }
+ return 0;
+}
+
+static struct xt_target notrack_tg_reg __read_mostly = {
+ .name = "NOTRACK",
+ .revision = 0,
+ .family = NFPROTO_UNSPEC,
+ .checkentry = notrack_chk,
+ .target = notrack_tg,
+ .table = "raw",
+ .me = THIS_MODULE,
+};
+