Commit b562f58b authored Jun 22, 2020 by Geliang Tang Committed by David S. Miller Jun 22, 2020

mptcp: drop sndr_key in mptcp_syn_options



In RFC 8684, we don't need to send sndr_key in SYN package anymore, so drop
it.

Fixes: cc7972ea ("mptcp: parse and emit MP_CAPABLE option according to v1 spec")
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 21a739c6

net/mptcp/options.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -336,9 +336,7 @@ bool mptcp_syn_options(struct sock sk, const struct sk_buff skb,
		*/
		subflow->snd_isn = TCP_SKB_CB(skb)->end_seq;
		if (subflow->request_mptcp) {
		pr_debug("local_key=%llu", subflow->local_key);
		opts->suboptions = OPTION_MPTCP_MPC_SYN;
		opts->sndr_key = subflow->local_key;
		*size = TCPOLEN_MPTCP_MPC_SYN;
		return true;
		} else if (subflow->request_join) {

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