/*

 *

 * (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 _ICMP_STATS_H_

#define _ICMP_STATS_H_

#include "ntop_includes.h"

typedef struct {

  u_int16_t pkt_sent, pkt_rcvd;

  char *last_host_sent_peer, *last_host_rcvd_peer;

} ICMPstats_t;

class ICMPstats {

 private:

  std::map<u_int16_t, ICMPstats_t> stats;

  Mutex m;

  MonitoredCounter<u_int32_t> num_destination_unreachable;

  void addToTable(const char *label, lua_State *vm, const ICMPstats_t *curr,

                  bool verbose);

  inline u_int16_t get_typecode(u_int8_t icmp_type, u_int8_t icmp_code) {

    return ((icmp_type << 8) + icmp_code);

  }

  inline void to_typecode(int type_code, u_int8_t *icmp_type,

                          u_int8_t *icmp_code) {

    *icmp_type = (type_code >> 8) & 0xFF, *icmp_code = type_code & 0xFF;

  }

 public:

  ICMPstats();

  ~ICMPstats();

  void incStats(u_int32_t num_pkts, u_int8_t icmp_type, u_int8_t icmp_code,

                bool sent, Host *peer);

  void updateStats(const struct timeval *tv);

  void lua(bool isV4, lua_State *vm, bool verbose = true);

  bool hasAnomalies(time_t when);

  void luaAnomalies(lua_State *vm, time_t when);

  void sum(ICMPstats *e);

  void getTsStats(ts_icmp_stats *s);

};

#endif /* _ICMP_STATS_H_ */