/*
 *
 * (C) 2013-20 - 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 _PACKETS_STATS_H_
#define _PACKETS_STATS_H_

#include "ntop_includes.h"

class PacketStats {
 private:
  u_int64_t upTo64, upTo128, upTo256,
    upTo512, upTo1024, upTo1518,
    upTo2500, upTo6500, upTo9000,
    above9000;
  u_int64_t syn, synack, finack, rst;

  /* Function to increase TCP flag stats when the flags are
     read from a single TCP segment. Call this for packet interfaces */
  void incFlagStatsSingleSegment(u_int8_t flags);
  /* Function to increase TCP flag stats when the flags are cumulative,
     i.e., when they are the logical OR among the flags detected across
     multiple TCP segments. Call this for non-packet interfaces such
     the ZMQ */
  void incFlagStatsCumulative(u_int8_t flags);

 public:
  PacketStats();

  void resetStats();
  void incFlagStats(u_int8_t flags, bool cumulative_flags);
  void incStats(u_int num_pkts, u_int pkt_len);
  char* serialize();
  void deserialize(json_object *o);
  json_object* getJSONObject();
  void lua(lua_State* vm, const char *label);
  inline void sum(PacketStats *s) const {
    s->upTo64 += upTo64, s->upTo128 += upTo128,
      s->upTo128 += upTo128, s->upTo256 += upTo256,
      s->upTo512 += upTo512, s->upTo1024 += upTo1024,
      s->upTo1518 += upTo1518, s->upTo2500 += upTo2500,
      s->upTo6500 += upTo6500, s->upTo9000 += upTo9000,
      s->above9000 += above9000,
      s->syn += syn, s->synack += synack,
      s->finack += finack,
      s->rst += rst;
  };
};

#endif /* _PACKETS_STATS_H_ */