'Get the current chap auth username and password.'

def _get_target_chap_auth(self, context, volume):

    try:
        volume_info = self.db.volume_get(context, volume['id'])
        if volume_info['provider_auth']:
            return tuple(volume_info['provider_auth'].split('    ', 3)[1:])
    except exception.NotFound:
        LOG.debug('Failed    to    get    CHAP    auth    from    DB    for    %s.', volume['id'])
