code: void readDirectives()
    {
      KeyUpdSSD keyUpdDir = ssdManager.getKeyUpdateSSD();
      HostSpecSSD hostSpecDir = ssdManager.getHostSpecBypassSSD();
  
      if (keyUpdDir != null)
      {
        processKeyUpdateDirective(keyUpdDir.getIssuer(), keyUpdDir.getKeyUpdDirective());
      }
  
      if (hostSpecDir != null)
      {
        ssdManager.addToSSDCache(hostSpecDir.getHostSpecDirective());
      }
    }
docs: Look for Out of Band Server Side Directives
  <p>
  These can be two types only:
  1. Key Update Directive - key_upd_ssd.ssd
  2. Host Specific OCSP Bypass Directive - host_spec_bypass_ssd.ssd