/*

 *

 * (C) 2013-24 - ntop.org

 *

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software Foundation,

 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

 *

 */

#include "ntop_includes.h"

#include "host_checks_includes.h"

//#define DEBUG_GATEWAY 1

/* ***************************************************** */

UnexpectedGateway::UnexpectedGateway()

  : HostCheck(ntopng_edition_community, false /* All interfaces */,

        false /* Don't exclude for nEdge */,

        false /* NOT only for nEdge */) {};

/* ***************************************************** */

void UnexpectedGateway::periodicUpdate(Host *h, HostAlert *engaged_alert) {

  HostAlert *alert = engaged_alert;

  IpAddress *p = h->get_ip();

  if (h->isLocalHost() && p && !p->isBroadcastAddress()) {

#ifdef DEBUG_GATEWAY

    char buf[64];

    ntop->getTrace()->traceEvent(TRACE_NORMAL,

         "Checking Unexpected Gateway [IP %s] [Is Gateway: %s] [Is Configured "

         "Gateway: %s]",

         p->print(buf, sizeof(buf)), p->isGateway() ? "Yes" : "No",

         ntop->getPrefs()->isGateway(p, h->get_vlan_id()) ? "Yes" : "No");

#endif

    if (p->isGateway() && !ntop->getPrefs()->isGateway(p, h->get_vlan_id())) {

      if (!alert)

        alert = allocAlert(this, h, CLIENT_FULL_RISK_PERCENTAGE);

      if (alert) h->triggerAlert(alert);

    }

  }

}

/* ***************************************************** */

bool UnexpectedGateway::loadConfiguration(json_object *config) {

  HostCheck::loadConfiguration(config); /* Parse parameters in common */

  return (true);

}

/* ***************************************************** */