netdev - Re: [PATCH net-next v5 04/11] tcp: Add MPTCP option number

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Date:   Fri, 20 Dec 2019 07:39:46 -0800
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Mat Martineau <mathew.j.martineau@...ux.intel.com>,
        netdev@...r.kernel.org, mptcp@...ts.01.org
Subject: Re: [PATCH net-next v5 04/11] tcp: Add MPTCP option number



On 12/19/19 2:34 PM, Mat Martineau wrote:
> TCP option 30 is allocated for MPTCP by the IANA.
> 
> Signed-off-by: Mat Martineau <mathew.j.martineau@...ux.intel.com>
> ---
>  include/net/tcp.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/net/tcp.h b/include/net/tcp.h
> index 86b9a8766648..d4b6bf2c5d3c 100644
> --- a/include/net/tcp.h
> +++ b/include/net/tcp.h
> @@ -182,6 +182,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo);
>  #define TCPOPT_SACK             5       /* SACK Block */
>  #define TCPOPT_TIMESTAMP	8	/* Better RTT estimations/PAWS */
>  #define TCPOPT_MD5SIG		19	/* MD5 Signature (RFC2385) */
> +#define TCPOPT_MPTCP		30	/* Multipath TCP (RFC6824) */
>  #define TCPOPT_FASTOPEN		34	/* Fast open (RFC7413) */
>  #define TCPOPT_EXP		254	/* Experimental */
>  /* Magic number to be after the option value for sharing TCP
> 

Reviewed-by: Eric Dumazet <edumazet@...gle.com>