xfrm: add route lookup to xfrm4_rcv_encap (cac3c716) · Commits · 戴 / test

At this point, with TCP encapsulation, the dst may be gone, but xfrm_input needs one. Signed-off-by:

net/ipv4/xfrm4_protocol.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -72,6 +72,14 @@ int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,
		if (!head)
		goto out;

		if (!skb_dst(skb)) {
		const struct iphdr *iph = ip_hdr(skb);

		if (ip_route_input_noref(skb, iph->daddr, iph->saddr,
		iph->tos, skb->dev))
		goto drop;
		}

		for_each_protocol_rcu(*head, handler)
		if ((ret = handler->input_handler(skb, nexthdr, spi, encap_type)) != -EINVAL)
		return ret;
		@@ -79,6 +87,7 @@ int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,
		out:
		icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);

		drop:
		kfree_skb(skb);
		return 0;
		}