netdev - Re: [MPTCP] [PATCH net-next 3/3] mptcp: emit tcp reset when a join request fails

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Message-ID: <73ccf7ca-258c-475-c7e8-7ee9d1a2d94@linux.intel.com>
Date:   Tue, 1 Dec 2020 14:33:20 -0800 (PST)
From:   Mat Martineau <mathew.j.martineau@...ux.intel.com>
To:     Florian Westphal <fw@...len.de>
cc:     netdev@...r.kernel.org, mptcp@...ts.01.org,
        linux-security-module@...r.kernel.org
Subject: Re: [MPTCP] [PATCH net-next 3/3] mptcp: emit tcp reset when a join
 request fails

On Mon, 30 Nov 2020, Florian Westphal wrote:

> RFC 8684 says:
> If the token is unknown or the host wants to refuse subflow establishment
> (for example, due to a limit on the number of subflows it will permit),
> the receiver will send back a reset (RST) signal, analogous to an unknown
> port in TCP, containing an MP_TCPRST option (Section 3.6) with an
> "MPTCP specific error" reason code.
>
> mptcp-next doesn't support MP_TCPRST yet, this can be added in another
> change.
>
> Signed-off-by: Florian Westphal <fw@...len.de>
> ---
> net/mptcp/subflow.c | 47 ++++++++++++++++++++++++++++++++++-----------
> 1 file changed, 36 insertions(+), 11 deletions(-)
>

Thanks for the patch, Florian. Hopefully the first two in the series are 
ok with those maintainers, and for this one I can add:

Reviewed-by: Mat Martineau <mathew.j.martineau@...ux.intel.com>

--
Mat Martineau
Intel