netdev - Re: [PATCHv2 net] sctp: not allow to set asoc prsctp

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Date:   Mon, 19 Nov 2018 12:42:13 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     lucien.xin@...il.com
Cc:     netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
        marcelo.leitner@...il.com, nhorman@...driver.com
Subject: Re: [PATCHv2 net] sctp: not allow to set asoc prsctp_enable by
 sockopt

From: Xin Long <lucien.xin@...il.com>
Date: Sun, 18 Nov 2018 15:21:53 +0800

> As rfc7496#section4.5 says about SCTP_PR_SUPPORTED:
> 
>    This socket option allows the enabling or disabling of the
>    negotiation of PR-SCTP support for future associations.  For existing
>    associations, it allows one to query whether or not PR-SCTP support
>    was negotiated on a particular association.
> 
> It means only sctp sock's prsctp_enable can be set.
> 
> Note that for the limitation of SCTP_{CURRENT|ALL}_ASSOC, we will
> add it when introducing SCTP_{FUTURE|CURRENT|ALL}_ASSOC for linux
> sctp in another patchset.
> 
> v1->v2:
>   - drop the params.assoc_id check as Neil suggested.
> 
> Fixes: 28aa4c26fce2 ("sctp: add SCTP_PR_SUPPORTED on sctp sockopt")
> Reported-by: Ying Xu <yinxu@...hat.com>
> Signed-off-by: Xin Long <lucien.xin@...il.com>

Applied and queued up for -stable.