Commit 8a348392 authored by Kishen Maloor's avatar Kishen Maloor Committed by Jakub Kicinski
Browse files

mptcp: store remote id from MP_JOIN SYN/ACK in local ctx 



This change reads the addr id assigned to the remote endpoint
of a subflow from the MP_JOIN SYN/ACK message and stores it
in the related subflow context. The remote id was not being
captured prior to this change, and will now provide a consistent
view of remote endpoints and their ids as seen through netlink
events.

Acked-by: default avatarPaolo Abeni <pabeni@redhat.com>
Signed-off-by: default avatarKishen Maloor <kishen.maloor@intel.com>
Signed-off-by: default avatarMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent b3b71bf9

net/mptcp/subflow.c

+1 −0
Original line number Diff line number Diff line
@@ -443,6 +443,7 @@ static void subflow_finish_connect(struct sock *sk, const struct sk_buff *skb) 
		subflow->backup = mp_opt.backup;

		subflow->thmac = mp_opt.thmac;

		subflow->remote_nonce = mp_opt.nonce;

		subflow->remote_id = mp_opt.join_id;

		pr_debug("subflow=%p, thmac=%llu, remote_nonce=%u backup=%d",

			 subflow, subflow->thmac, subflow->remote_nonce,

			 subflow->backup);