netdev - Re: [PATCH net] net/tls: Fix kernel panic when socket is in TLS ULP

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Message-ID: <20201105104658.4f96cc90@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Thu, 5 Nov 2020 10:46:58 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Vinay Kumar Yadav <vinay.yadav@...lsio.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, borisp@...dia.com,
        secdev@...lsio.com
Subject: Re: [PATCH net] net/tls: Fix kernel panic when socket is in TLS ULP

On Thu, 5 Nov 2020 23:55:15 +0530 Vinay Kumar Yadav wrote:
> >>> We should prevent from the socket getting into LISTEN state in the
> >>> first place. Can we make a copy of proto_ops (like tls_sw_proto_ops)
> >>> and set listen to sock_no_listen?  
> >>
> >> Once tls-toe (TLS_HW_RECORD) is configured on a socket, listen() call
> >> from user on same socket will create hash at two places.  
> > 
> > What I'm saying is - disallow listen calls on sockets with tls-toe
> > installed on them. Is that not possible?
> >  
> You mean socket with tls-toe installed shouldn't be listening at other
> than adapter? basically avoid ctx->sk_proto->hash(sk) call.

No, replace the listen callback, like I said. Why are you talking about
hash???