ntopng/src/FlowGrouper.cpp
2021-01-02 12:08:23 +01:00

106 lines
2.7 KiB
C++

/*
*
* (C) 2017-21 - 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"
/* *************************************** */
FlowGrouper::FlowGrouper(sortField sf){
sorter = sf;
app_protocol = 0;
table_index = 1;
memset(&stats, 0, sizeof(stats));
}
/* *************************************** */
FlowGrouper::~FlowGrouper() {}
/* *************************************** */
bool FlowGrouper::inGroup(Flow *flow) {
switch(sorter) {
case column_ndpi:
return (flow->get_detected_protocol().app_protocol == app_protocol);
default:
return false;
}
}
/* *************************************** */
int FlowGrouper::newGroup(Flow *flow) {
if(flow == NULL)
return -1;
memset(&stats, 0, sizeof(stats));
switch(sorter) {
case column_ndpi:
app_protocol = flow->get_detected_protocol().app_protocol;
break;
default:
return -1;
}
return 0;
}
/* *************************************** */
int FlowGrouper::incStats(Flow *flow) {
if(flow == NULL || !inGroup(flow))
return -1;
stats.bytes += flow->get_bytes();
stats.bytes_thpt += flow->get_bytes_thpt();
if(stats.first_seen == 0 || flow->get_first_seen() < stats.first_seen)
stats.first_seen = flow->get_first_seen();
if(flow->get_last_seen() > stats.last_seen)
stats.last_seen = flow->get_last_seen();
#ifdef HAVE_NEDGE
if(!flow->isPassVerdict())
#endif
stats.num_blocked_flows++;
stats.num_flows++;
return 0;
}
/* *************************************** */
void FlowGrouper::lua(lua_State* vm) {
lua_newtable(vm);
lua_push_uint64_table_entry(vm, "proto", app_protocol);
lua_push_uint64_table_entry(vm, "bytes", stats.bytes);
lua_push_uint64_table_entry(vm, "seen.first", stats.first_seen);
lua_push_uint64_table_entry(vm, "seen.last", stats.last_seen);
lua_push_uint64_table_entry(vm, "num_flows", stats.num_flows);
lua_push_uint64_table_entry(vm, "num_blocked_flows", stats.num_blocked_flows);
lua_push_float_table_entry(vm, "throughput_bps", max_val(stats.bytes_thpt, 0));
lua_rawseti(vm, -2, table_index++);
}