Re: [Qemu-devel] [PATCH v2] vnc: disable VNC password authentication (security type 2) when in FIPS mode

["Daniel P. Berrange" <berrange@redhat.com>]

On Fri, May 04, 2012 at 08:39:04AM -0400, Paul Moore wrote:
> On Friday, May 04, 2012 04:01:09 AM Roman Drahtmueller wrote:

> > Two problems:
> > 1) openssl may not come with FIPS support. proc file is ignored.
> > 2) openssl may run in FIPS mode for reasons other than fips=1 on the
> >    kernel cmdline (environment, ...).
> >
> > Suggested way to handle this:
> > 
> > 1) compile-time check if <openssl/fips.h> exists.
> >    Ignore fips specifics if not, otherwise:
> > 2) use int FIPS_mode(void) for what it's there:
> > 
> > #ifdef _QEMU_FIPS 		/* or whatever */
> > #include <openssl/fips.h>
> >   vs->fips = FIPS_mode();
> > #endif
> > 
> > and skip fips_enabled(void).
> > 
> > Much easier!

QEMU does not use OpenSSL for anything [1], it uses GNUTLS, so I would
not be in favour of using OpenSSL for this. 

Daniel

[1] Yes the libspice-server.so uses OpenSSL which is a shame, but that
    can be sorted out one day.
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