ntopng/scripts/lua/network_load.lua
2017-01-10 15:03:16 -08:00

122 lines
4.7 KiB
Lua

--
-- (C) 2013-17 - ntop.org
--
dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
require "lua_utils"
json = require("dkjson")
--sendHTTPHeader('text/html; charset=iso-8859-1')
sendHTTPHeader('application/json')
function dumpInterfaceStats(interface_name)
interface.select(interface_name)
local ifstats = interface.getStats()
local stats = interface.getFlowsStats()
local res = {}
if(ifstats ~= nil) then
uptime = ntop.getUptime()
prefs = ntop.getPrefs()
-- Round up
hosts_pctg = math.floor(1+((ifstats.stats.hosts*100)/prefs.max_num_hosts))
flows_pctg = math.floor(1+((ifstats.stats.flows*100)/prefs.max_num_flows))
res["ifname"] = interface_name
-- network load is used by web pages that are shown to the user
-- so we must return statistics since the latest (possible) reset
res["packets"] = ifstats.stats_since_reset.packets
res["bytes"] = ifstats.stats_since_reset.bytes
res["drops"] = ifstats.stats_since_reset.drops
if prefs.is_dump_flows_to_es_enabled == true
or prefs.is_dump_flows_to_mysql_enabled == true then
res["flow_export_drops"] = ifstats.stats_since_reset.flow_export_drops
res["flow_export_rate"] = ifstats.stats_since_reset.flow_export_rate
res["flow_export_count"] = ifstats.stats_since_reset.flow_export_count
end
if prefs.are_alerts_enabled == true then
local alert_cache = interface.getCachedNumAlerts()
res["engaged_alerts"] = alert_cache["num_alerts_engaged"]
res["alerts_stored"] = alert_cache["alerts_stored"]
end
res["num_flows"] = ifstats.stats.flows
res["num_hosts"] = ifstats.stats.hosts
res["num_devices"] = ifstats.stats.devices
res["epoch"] = os.time()
res["tz_offset"] = get_timezone_offset()
res["localtime"] = format_time(res["epoch"], "!%H:%M:%S %z", res["tz_offset"])
res["uptime"] = secondsToTime(uptime)
res["hosts_pctg"] = hosts_pctg
res["flows_pctg"] = flows_pctg
res["remote_pps"] = ifstats.remote_pps
res["remote_bps"] = ifstats.remote_bps
res["is_view"] = ifstats.isView
res["local2remote"] = ifstats["localstats"]["bytes"]["local2remote"]
res["remote2local"] = ifstats["localstats"]["bytes"]["remote2local"]
if(ifstats.zmqRecvStats ~= nil) then
res["zmqRecvStats"] = {}
res["zmqRecvStats"]["flows"] = ifstats.zmqRecvStats.flows
res["zmqRecvStats"]["events"] = ifstats.zmqRecvStats.events
res["zmqRecvStats"]["counters"] = ifstats.zmqRecvStats.counters
res["zmqRecvStats"]["zmq_msg_drops"] = ifstats.zmqRecvStats.zmq_msg_drops
end
res["tcpPacketStats"] = {}
res["tcpPacketStats"]["retransmissions"] = ifstats.tcpPacketStats.retransmissions
res["tcpPacketStats"]["out_of_order"] = ifstats.tcpPacketStats.out_of_order
res["tcpPacketStats"]["lost"] = ifstats.tcpPacketStats.lost
if(ifstats["bridge.device_a"] ~= nil) then
res["a_to_b_in_pkts"] = ifstats["bridge.a_to_b.in_pkts"]
res["a_to_b_in_bytes"] = ifstats["bridge.a_to_b.in_bytes"]
res["a_to_b_out_pkts"] = ifstats["bridge.a_to_b.out_pkts"]
res["a_to_b_out_bytes"] = ifstats["bridge.a_to_b.out_bytes"]
res["a_to_b_filtered_pkts"] = ifstats["bridge.a_to_b.filtered_pkts"]
res["a_to_b_shaped_pkts"] = ifstats["bridge.a_to_b.shaped_pkts"]
res["b_to_a_in_pkts"] = ifstats["bridge.b_to_a.in_pkts"]
res["b_to_a_in_bytes"] = ifstats["bridge.b_to_a.in_bytes"]
res["b_to_a_out_pkts"] = ifstats["bridge.b_to_a.out_pkts"]
res["b_to_a_out_bytes"] = ifstats["bridge.b_to_a.out_bytes"]
res["b_to_a_filtered_pkts"] = ifstats["bridge.b_to_a.filtered_pkts"]
res["b_to_a_shaped_pkts"] = ifstats["bridge.b_to_a.shaped_pkts"]
res["a_to_b_num_pkts_send_buffer_full"] = ifstats["bridge.a_to_b.num_pkts_send_buffer_full"]
res["a_to_b_num_pkts_send_error"] = ifstats["bridge.a_to_b.num_pkts_send_error"]
res["b_to_a_num_pkts_send_buffer_full"] = ifstats["bridge.b_to_a.num_pkts_send_buffer_full"]
res["b_to_a_num_pkts_send_error"] = ifstats["bridge.b_to_a.num_pkts_send_error"]
end
if(ifstats["profiles"] ~= nil) then
res["profiles"] = ifstats["profiles"]
end
res["breed"] = stats["breeds"]
end
return res
end
-- ###############################
local res = {}
if(_GET["ifname"] == "all") then
local names = interface.getIfNames()
local n = 1
local sortedKeys = getKeysSortedByValue(names, function(a, b) return a < b end)
for k,v in ipairs(sortedKeys) do
res[n] = dumpInterfaceStats(names[v])
n = n + 1
end
else
res = dumpInterfaceStats(ifname)
end
print(json.encode(res, nil, 1))