/*
 *
 * (C) 2013-23 - 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"

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

EthStats::EthStats() { cleanup(); }

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

void EthStats::incStats(bool ingressPacket, u_int32_t num_pkts,
                        u_int32_t num_bytes, u_int pkt_overhead) {
  if (ingressPacket)
    rawIngress.inc(num_pkts, num_bytes + pkt_overhead * num_pkts);
  else
    rawEgress.inc(num_pkts, num_bytes + pkt_overhead * num_pkts);
};

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

void EthStats::incProtoStats(u_int16_t proto, u_int32_t num_pkts,
                             u_int32_t num_bytes) {
  switch (proto) {
    case ETHERTYPE_ARP:
      eth_ARP.inc(num_pkts, num_bytes);
      break;
    case ETHERTYPE_IP:
      eth_IPv4.inc(num_pkts, num_bytes);
      break;
    case ETHERTYPE_IPV6:
      eth_IPv6.inc(num_pkts, num_bytes);
      break;
    case ETHERTYPE_MPLS:
    case ETHERTYPE_MPLS_MULTI:
      eth_MPLS.inc(num_pkts, num_bytes);
      break;
    default:
      eth_other.inc(num_pkts, num_bytes);
      break;
  }
};

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

void EthStats::lua(lua_State *vm) {
  lua_newtable(vm);

  eth_IPv4.lua(vm, "IPv4_");
  eth_IPv6.lua(vm, "IPv6_");
  eth_ARP.lua(vm, "ARP_");
  eth_MPLS.lua(vm, "MPLS_");
  eth_other.lua(vm, "other_");
  lua_push_uint64_table_entry(vm, "bytes", getNumBytes());
  lua_push_uint64_table_entry(vm, "packets", getNumPackets());

  lua_newtable(vm);
  lua_push_uint64_table_entry(vm, "bytes", getNumIngressBytes());
  lua_push_uint64_table_entry(vm, "packets", getNumIngressPackets());

  lua_newtable(vm);
  lua_push_float_table_entry(vm, "bps", ingress_bytes_thpt.getThpt());
  lua_push_float_table_entry(vm, "pps", ingress_pkts_thpt.getThpt());
  lua_pushstring(vm, "throughput");
  lua_insert(vm, -2);
  lua_settable(vm, -3);

  lua_pushstring(vm, "ingress");
  lua_insert(vm, -2);
  lua_settable(vm, -3);

  lua_newtable(vm);
  lua_push_uint64_table_entry(vm, "bytes", getNumEgressBytes());
  lua_push_uint64_table_entry(vm, "packets", getNumEgressPackets());

  lua_newtable(vm);
  lua_push_float_table_entry(vm, "bps", egress_bytes_thpt.getThpt());
  lua_push_float_table_entry(vm, "pps", egress_pkts_thpt.getThpt());
  lua_pushstring(vm, "throughput");
  lua_insert(vm, -2);
  lua_settable(vm, -3);

  lua_pushstring(vm, "egress");
  lua_insert(vm, -2);
  lua_settable(vm, -3);

  lua_pushstring(vm, "eth");
  lua_insert(vm, -2);
  lua_settable(vm, -3);
}
/* *************************************** */

void EthStats::updateStats(const struct timeval *tv) {
  ingress_bytes_thpt.updateStats(tv, getNumIngressBytes()),
      ingress_pkts_thpt.updateStats(tv, getNumIngressPackets());
  egress_bytes_thpt.updateStats(tv, getNumEgressBytes()),
      egress_pkts_thpt.updateStats(tv, getNumEgressPackets());
}

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

void EthStats::print() {
  eth_IPv4.print("[IPv4] ");
  eth_IPv6.print("[IPv6] ");
  eth_ARP.print("[ARP]  ");
  eth_MPLS.print("[MPLS] ");
  eth_other.print("[Other]");
}

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

void EthStats::cleanup() {
  rawIngress.reset(), rawEgress.reset();
  ingress_bytes_thpt.resetStats(), ingress_pkts_thpt.resetStats();
  egress_bytes_thpt.resetStats(), egress_pkts_thpt.resetStats();
  eth_IPv4.reset();
  eth_IPv6.reset();
  eth_ARP.reset();
  eth_MPLS.reset();
  eth_other.reset();
}
