netdev - Re: Kernel TLS in 4.13-rc1

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Date:   Mon, 24 Jul 2017 14:10:19 -0700
From:   Dave Watson <davejwatson@...com>
To:     David Oberhollenzer <david.oberhollenzer@...ma-star.at>
CC:     <netdev@...r.kernel.org>, Richard Weinberger <richard@....at>
Subject: Re: Kernel TLS in 4.13-rc1

On 07/23/17 09:39 PM, David Oberhollenzer wrote:
> After fixing the benchmark/test tool that the patch description
> linked to (https://github.com/Mellanox/tls-af_ktls_tool) to make
> sure that the server and client actually *agree* on AES-128-GCM,
> I simply ran the client program with the --verify-sendpage option.
> 
> The handshake and setting up of the sockets appears to work but
> the program complains that the sent and received page contents
> do not match (sent is 0x12 repeated all over and received looks
> pretty random).

The --verify functions depend on the RX path as well, which has not
been merged.  Any programs / tests using OpenSSL + patches should work
fine.

If you want to use the tool, something like this should work, so that
the receive path uses gnutls:

./server --no-echo

./client --server-port 12345 --sendfile some_file --server-host localhost