[libvirt] [PATCH v3 2/6] nbd: allow authorization with nbd-server-start QMP command

[Juan Quintela]

Daniel P. Berrangé <berrange at redhat.com> wrote:
> From: "Daniel P. Berrange" <berrange at redhat.com>
>
> As with the previous patch to qemu-nbd, the nbd-server-start QMP command
> also needs to be able to specify authorization when enabling TLS encryption.
>
> First the client must create a QAuthZ object instance using the
> 'object-add' command:
>
>    {
>      'execute': 'object-add',
>      'arguments': {
>        'qom-type': 'authz-list',
>        'id': 'authz0',
>        'parameters': {
>          'policy': 'deny',
>          'rules': [
>            {
>              'match': '*CN=fred',
>              'policy': 'allow'
>            }
>          ]
>        }
>      }
>    }
>
> They can then reference this in the new 'tls-authz' parameter when
> executing the 'nbd-server-start' command:
>
>    {
>      'execute': 'nbd-server-start',
>      'arguments': {
>        'addr': {
>            'type': 'inet',
>            'host': '127.0.0.1',
>            'port': '9000'
>        },
>        'tls-creds': 'tls0',
>        'tls-authz': 'authz0'
>      }
>    }
>
> Signed-off-by: Daniel P. Berrange <berrange at redhat.com>

Reviewed-by: Juan Quintela <quintela at redhat.com>

similar to previous patch in series.