Re: [patch RFC net-next v2 3/3] udp6: Use Segment Routing Header for dest address if present

@@ -563,12 +564,18 @@ int __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	const struct in6_addr *saddr = &hdr->saddr;
 	const struct in6_addr *daddr = &hdr->daddr;
 	struct udphdr *uh = (struct udphdr *)(skb->data+offset);
+	struct ipv6_sr_hdr *srh;
 	bool tunnel = false;
 	struct sock *sk;
 	int harderr;
 	int err;
 	struct net *net = dev_net(skb->dev);
 
+	if (opt->flags & IP6SKB_SEG6) {
+		srh = (struct ipv6_sr_hdr *)(skb->data + opt->srhoff);
+		daddr = &srh->segments[0];
+	}
+
 	sk = __udp6_lib_lookup(net, daddr, uh->dest, saddr, uh->source,
 			       inet6_iif(skb), inet6_sdif(skb), udptable, NULL);