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71 lines
1.6 KiB
Lua
71 lines
1.6 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 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 pkt_distribution = {
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['upTo64'] = '<= 64',
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['upTo128'] = '64 <= 128',
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['upTo256'] = '128 <= 256',
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['upTo512'] = '256 <= 512',
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['upTo1024'] = '512 <= 1024',
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['upTo1518'] = '1024 <= 1518',
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['upTo2500'] = '1518 <= 2500',
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['upTo6500'] = '2500 <= 6500',
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['upTo9000'] = '6500 <= 9000',
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['above9000'] = '> 9000'
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}
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local ifid = _GET["ifid"] or 0
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local ifname = getInterfaceName(ifid)
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local chart_type = _GET["chart_type"] or "size"
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interface.select(ifname)
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local ifstats = interface.getStats()
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what = ifstats["pktSizeDistribution"]["size"]
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local tot = 0
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for key, value in pairs(what) do
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tot = tot + value
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end
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local threshold = (tot * 5) / 100
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local sum = 0
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local labels = {}
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local slices = {}
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for key, value in pairs(what) do
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if(value > threshold) then
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if(pkt_distribution[key] ~= nil) then
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table.insert(labels, pkt_distribution[key])
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table.insert(slices, value)
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sum = sum + value
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end
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end
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end
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if(sum < tot) then
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table.insert(labels, "Other")
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table.insert(slices, tot-sum)
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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.." Packet Distribution"
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m:appendRow(when, dataset, slices)
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return(m)
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