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50 lines
1.1 KiB
Lua
50 lines
1.1 KiB
Lua
--
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-- (C) 2020 - ntop.org
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--
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dirs = ntop.getDirs()
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package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
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require("lua_utils")
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local datasources_utils = require("datasources_utils")
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local datamodel = require("datamodel_utils")
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local pkt_distribution = {
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['syn'] = 'SYN',
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['synack'] = 'SYN/ACK',
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['finack'] = 'FIN/ACK',
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['rst'] = 'RST',
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}
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local function reportError(msg)
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print(json.encode({ error = msg, success = false, csrf = ntop.getRandomCSRFValue() }))
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end
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local ifid = _GET["ifid"] or 0
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local if_name = getInterfaceName(ifid)
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interface.select(ifname)
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local ifstats = interface.getStats()
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local labels = {}
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local slices = {}
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local res = {}
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for key, value in pairs(ifstats["pktSizeDistribution"]["tcp_flags"]) do
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if value > 0 then
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table.insert(labels, pkt_distribution[key])
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table.insert(slices, value)
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end
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end
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if(table.len(res) == 0) then
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table.insert(labels, "Other")
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table.insert(slices, 100)
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end
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-- Prepare the results
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local m = datamodel:create(labels)
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local dataset = ifname.." TCP Flags"
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m:appendRow(when, dataset, slices)
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return(m)
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