On Fri, Jun 15, 2018 at 8:59 AM, Yann Ylavic <[email protected]> wrote: >> On Fri, Jun 15, 2018 at 3:06 AM, Dennis Clarke <[email protected]> wrote: >>> >>> [Fri Jun 15 00:59:59.788742 2018] [ssl:error] [pid 2250:tid 27] [client >>> 68.179.116.201:34466] AH02042: rejecting client initiated renegotiation > > This suggests that with TLS 1.3, unlike with previous protocols, the > ssl_callback_Info callback is always called by openssl (some specific > extension only?). httpd is not prepared to that and thinks it's a > client renegotiation. > > I didn't look at TLS 1.3 yet, but something along this looks seems plausible.
For instance, multiple session tickets might call the callback more than once: https://github.com/openssl/openssl/blob/master/ssl/statem/statem_srvr.c#L3785 Since renegotiations are forbidden by TLS 1.3 in the first place (enforced by openssl probably), I think that the check for renegotiations should be disabled in our ssl_callback_Info (for TLS 1.3).
