Commit 03f324f3 authored by Matthieu Baerts (NGI0)'s avatar Matthieu Baerts (NGI0) Committed by Jakub Kicinski
Browse files

mptcp: pm: ADD_ADDR rtx: allow ID 0 



ADD_ADDR can be sent for the ID 0, which corresponds to the local
address and port linked to the initial subflow.

Indeed, this address could be removed, and re-added later on, e.g. what
is done in the "delete re-add signal" MPTCP Join selftests. So no reason
to ignore it.

Fixes: 00cfd77b ("mptcp: retransmit ADD_ADDR when timeout")
Cc: stable@vger.kernel.org
Reviewed-by: default avatarMat Martineau <martineau@kernel.org>
Signed-off-by: default avatarMatthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260505-net-mptcp-pm-fixes-7-1-rc3-v1-2-fca8091060a4@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent b12014d2

net/mptcp/pm.c

+0 −3
Original line number Diff line number Diff line
@@ -337,9 +337,6 @@ static void mptcp_pm_add_timer(struct timer_list *timer) 
	if (inet_sk_state_load(sk) == TCP_CLOSE)

		return;



	if (!entry->addr.id)

		return;



	if (mptcp_pm_should_add_signal_addr(msk)) {

		sk_reset_timer(sk, timer, jiffies + TCP_RTO_MAX / 8);

		goto out;