/*

 *

 * (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.

 *

 */

#ifndef _UNEXPECTED_DHCP_SERVER_H_

#define _UNEXPECTED_DHCP_SERVER_H_

#include "ntop_includes.h"

class UnexpectedDHCPServer : public UnexpectedServer {

 private:

  FlowAlertType getAlertType() const {

    return UnexpectedDHCPServerAlert::getClassType();

  }

 protected:

  bool isAllowedHost(Flow *f);

  bool isAllowedProto(Flow *f) {

    return (f->isDHCP() && (f->get_cli_port() == 67 /* Server port (bootps) */));

  }

  const IpAddress *getServerIP(Flow *f) { return (f->get_dhcp_srv_ip_addr()); }

 public:

  UnexpectedDHCPServer() : UnexpectedServer(){};

  ~UnexpectedDHCPServer(){};

  FlowAlert *buildAlert(Flow *f) {

    UnexpectedDHCPServerAlert *alert = new UnexpectedDHCPServerAlert(this, f);

    alert->setCliAttacker();

    return alert;

  }

  std::string getName() const { return (std::string("unexpected_dhcp")); }

};

#endif /* _UNEXPECTED_DHCP_SERVER_H_ */