Re: [RFC 1/4] net/handshake: get negotiated tls record size limit

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On Tue, 2025-07-29 at 10:12 +0200, Hannes Reinecke wrote:
> 
[snip]...
> > diff --git a/Documentation/networking/tls-handshake.rst
> > b/Documentation/networking/tls-handshake.rst
> > index 6f5ea1646a47..cd984a137779 100644
> > --- a/Documentation/networking/tls-handshake.rst
> > +++ b/Documentation/networking/tls-handshake.rst
> > @@ -169,7 +169,8 @@ The synopsis of this function is:
> >   .. code-block:: c
> >   
> >     typedef void	(*tls_done_func_t)(void *data, int status,
> > -                                   key_serial_t peerid);
> > +                                   key_serial_t peerid,
> > +                                   size_t tls_record_size_limit);
> >   
> >   The consumer provides a cookie in the @ta_data field of the
> >   tls_handshake_args structure that is returned in the @data
> > parameter of
> 
> Why is this exposed to the TLS handshake consumer?
> The TLS record size is surely required for handling and processing
> TLS
> streams in net/tls, but the consumer of that (eg NVMe-TCP, NFS)
> are blissfully unaware that there _are_ such things like TLS records.
> And they really should keep it that way.
> 
> So I'd really _not_ expose that to any ULP and keep it internal to
> the TLS layer.
> 
Hey Hannes,

Sorry for the delay in response, and thanks for the feedback! Yeah I
agree it was a bad approach from me. It definitely makes more sense to
keep things in the TLS layer. I will try to address this in V2.

Regards,
Wilfred





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