The x509 TLS credentials code will load the identity certs once to
perform sanity chcking on the certs, then discard the certificate
objects and let gnutls load them a second time.
This extends the previous QCryptoTLSCredsX509Files struct to also
hold the identity certificates & key loaded for sanity checking
and pass them on to gnutls, avoiding the duplicated loading.
The unit tests need updating because we now correctly diagnose the
error scenario where the cert PEM file exists, without its matching
key PEM file. Previously that error was mistakenly ignored.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
8031b5fb1a