/*

 *

 * (C) 2013-25 - 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 _DNS_STATS_H_

#define _DNS_STATS_H_

#include "ntop_includes.h"

struct queries_breakdown {

  u_int32_t num_a, num_ns, num_cname, num_soa, num_ptr, num_mx, num_txt,

      num_aaaa, num_any, num_other;

};

struct dns_stats {

  MonitoredCounter<u_int32_t> num_queries, num_replies_ok, num_replies_error;

  struct queries_breakdown breakdown;

};

class DnsStats {

 private:

  struct dns_stats sent_stats, rcvd_stats;

  json_object *getStatsJSONObject(struct dns_stats *stats);

  void luaStats(lua_State *vm, struct dns_stats *stats, const char *label,

                bool verbose);

 public:

  DnsStats();

  void incStats(bool as_client, const FlowDNSStats *fts);

  void updateStats(const struct timeval *const tv);

  u_int32_t getSentNumQueries() { return sent_stats.num_queries.get(); }

  u_int32_t getSentNumRepliesOk() { return sent_stats.num_replies_ok.get(); }

  u_int32_t getSentNumRepliesError() {

    return sent_stats.num_replies_error.get();

  }

  u_int32_t getRcvdNumQueries() { return rcvd_stats.num_queries.get(); }

  u_int32_t getRcvdNumRepliesOk() { return rcvd_stats.num_replies_ok.get(); }

  u_int32_t getRcvdNumRepliesError() {

    return rcvd_stats.num_replies_error.get();

  }

  json_object *getJSONObject();

  void lua(lua_State *vm, bool verbose);

  bool hasAnomalies(time_t when);

  void luaAnomalies(lua_State *vm, time_t when);

};

#endif /* _STATS_H_ */