ntopng/src/Vlan.cpp

102 lines
2.8 KiB
C++

/*
*
* (C) 2013-17 - 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"
/* *************************************** */
Vlan::Vlan(NetworkInterface *_iface, u_int16_t _vlan_id) : GenericHashEntry(_iface), GenericTrafficElement() {
vlan_id = _vlan_id;
#ifdef VLAN_DEBUG
ntop->getTrace()->traceEvent(TRACE_NORMAL, "Created VLAN %u", vlan_id);
#endif
}
/* *************************************** */
Vlan::~Vlan() {
/* TODO: decide if it is useful to dump AS stats to redis */
#ifdef VLAN_DEBUG
ntop->getTrace()->traceEvent(TRACE_NORMAL, "Deleted vlan %u", vlan_id);
#endif
/* NOTE: ndpiStats is alredy freed by GenericTrafficElement */
}
/* *************************************** */
bool Vlan::idle() {
bool rc;
#ifdef VLAN_DEBUG
ntop->getTrace()->traceEvent(TRACE_NORMAL, "Checking VLAN %u for purge [uses %u][last: %u][diff: %d]",
vlan_id, num_uses,
last_seen, iface->getTimeLastPktRcvd() - (last_seen+MAX_LOCAL_HOST_IDLE));
#endif
if((num_uses > 0) || (!iface->is_purge_idle_interface()))
return(false);
rc = isIdle(MAX_LOCAL_HOST_IDLE);
#ifdef VLAN_DEBUG
ntop->getTrace()->traceEvent(TRACE_NORMAL, "VLAN %u for purge %s",
vlan_id,
rc ? "Idle: ready to be purged" : "Not Idle");
#endif
return(rc);
}
/* *************************************** */
void Vlan::lua(lua_State* vm, DetailsLevel details_level, bool asListElement) {
lua_newtable(vm);
if(details_level >= details_high) {
((GenericTrafficElement*)this)->lua(vm, true);
if(details_level >= details_higher)
if(ndpiStats) ndpiStats->lua(iface, vm);
}
lua_push_int_table_entry(vm, "vlan_id", vlan_id);
lua_push_int_table_entry(vm, "seen.first", first_seen);
lua_push_int_table_entry(vm, "seen.last", last_seen);
lua_push_int_table_entry(vm, "duration", get_duration());
lua_push_int_table_entry(vm, "num_hosts", getNumHosts());
if(asListElement) {
lua_pushnumber(vm, vlan_id);
lua_insert(vm, -2);
lua_settable(vm, -3);
}
}
/* *************************************** */
bool Vlan::equal(u_int16_t _vlan_id) {
return(vlan_id == _vlan_id);
}