- th = skb_header_pointer(skb, iph->len, sizeof(_tcph), &_tcph);
- if (th == NULL) {
+ net = skb_net(skb);
+ ipvs = net_ipvs(net);
+
+ /* In the event of icmp, we're only guaranteed to have the first 8
+ * bytes of the transport header, so we only check the rest of the
+ * TCP packet for non-ICMP packets
+ */
+ if (likely(!ip_vs_iph_icmp(iph))) {
+ th = skb_header_pointer(skb, iph->len, sizeof(_tcph), &_tcph);
+ if (th) {
+ if (th->rst || !(sysctl_sloppy_tcp(ipvs) || th->syn))
+ return 1;
+ ports = &th->source;
+ }
+ } else {
+ ports = skb_header_pointer(
+ skb, iph->len, sizeof(_ports), &_ports);
+ }
+
+ if (!ports) {