neon SSL use with Twisted

Joe Orton joe at
Thu Jan 7 09:51:49 EST 2010

On Thu, Jan 07, 2010 at 03:45:15PM +0100, Helge Hess wrote:
> On Jan 7, 2010, at 15:31 , Joe Orton wrote:
> > On Thu, Jan 07, 2010 at 03:08:04PM +0100, Helge Heß wrote:
> >> On 07.01.2010, at 15:00, Joe Orton wrote:
> >>> Does this build work with other SSL servers, or is the problem specific 
> >>> to that SSL server?
> >> It works fine with Apache mod_dav, so it looks like this is a problem 
> >> against the Twisted server only (Darwin Calendar Server).
> > 
> > Does it make any difference if you disable TLS SNI, i.e.:
> > 
> >  ne_set_session_flag(sess, NE_SESSFLAG_TLS_SNI, 0);
> No, it doesn't, already tried that.

OK.  So, is this right:

a) neon 0.29.x fails against this server with any version of OpenSSL
b) neon 0.28.x works against this server with any version of OpenSSL

I'm not sure why that would be.  There are a couple of SSL-related 
changes in 0.29.x but none which could cause a handshake failure like 
that.  Could you provide neon debug output with NE_DBG_SSL enabled?

Could you 

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