[openssl-users] Trouble with BIO_s_mem() and SSL_new() on OpenSSL-1.1.0-pre7-dev

Sat Aug 6 10:19:48 UTC 2016

Matt

Complete mis-read on my part, there is nothing wrong with SSL_new() and
BIO_s_mem().  I neglected to recall I was debugging a unittest with a client
thread was using the simpler bio_s_connect() to test our non-blocking
server. 

The debugger was showing us the other thread.

-- thanks much.  

> -----Original Message-----
> From: openssl-users [mailto:openssl-users-bounces at openssl.org] On
> Behalf Of Matt Caswell
> Sent: Saturday, August 06, 2016 4:48 AM
> To: openssl-users at openssl.org
> Subject: Re: [openssl-users] Trouble with BIO_s_mem() and SSL_new() on
> OpenSSL-1.1.0-pre7-dev
> 
> 
> 
> On 06/08/16 02:32, Jim Carroll wrote:
> > We have a non-blocking windows app that we are migrating to from
> OpenSSL
> > 1.0.2i to 1.1.0-pre7-dev. We move data from sockets to SSL via
> > BIO_s_mem() objects.
> >
> >
> >
> >     rbio = BIO_new(BIO_s_mem());
> >
> >     wbio = BIO_new(BIO_s_mem());
> >
> >
> >
> >     ssl = SSL_new(ssl_ctx);
> >
> >     SSL_set_bio(ssl, rbio, wbio);
> >
> >
> >
> > We move data in via BIO_write(rbio, ...), but later an SSL_read(ssl,
> > ...) returns bytes -1 and SSL_get_error() returns SSL_ERROR(1)
> >
> >
> >
> > Debug stepping through the code, we were surprised to discover that
> > ssl3_read_n() dispatched the SSL_read() into BIO_s_connect(). A
> detailed
> > study of the code, and I can assure that at no point do we ever
> > associate the windows socket with SSL.
> >
> > Is it possible that that SSL_new() no longer allows the use of memory
> > BIO's? I know that's a long shot question, but we're grasping at
> straws
> > here.
> 
> No, the use of memory BIO's is perfectly acceptable - and in fact we do
> exactly that in our own self-tests. See create_ssl_connection() in
> test/ssltestlib.c.
> 
> Matt
> 
> --
> openssl-users mailing list
> To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users

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