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78 lines
No EOL
2 KiB
Lua
78 lines
No EOL
2 KiB
Lua
--
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-- (C) 2013-26 - ntop.org
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--
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local 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 json = require "dkjson"
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local rest_utils = require "rest_utils"
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--
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-- Get packet size or IP version distribution for an interface
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-- Example: curl -u admin:admin http://localhost:3000/lua/rest/v2/get/interface/pkt_distribution.lua?ifid=1&distr=size
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-- Example: curl -u admin:admin http://localhost:3000/lua/rest/v2/get/interface/pkt_distribution.lua?ifid=1&distr=ipver
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--
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local rc = rest_utils.consts.success.ok
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local res = {}
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local ifid = _GET["ifid"]
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local distr_type = _GET["distr"]
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if isEmptyString(ifid) then
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rc = rest_utils.consts.err.invalid_interface
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rest_utils.answer(rc)
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return
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end
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interface.select(ifid)
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local ifstats = interface.getStats()
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if (distr_type == nil) or (distr_type == "size") then
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local what = ifstats["pktSizeDistribution"]["size"]
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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 tot = 0
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for _, 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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for key, value in pairs(what) do
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if value > threshold and pkt_distribution[key] ~= nil then
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res[#res + 1] = { label = pkt_distribution[key], value = value }
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sum = sum + value
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end
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end
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if sum < tot then
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res[#res + 1] = { label = "Other", value = (tot - sum) }
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end
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elseif distr_type == "ipver" then
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res[#res + 1] = { label = "IPv6", value = ifstats.eth.IPv6_packets }
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res[#res + 1] = { label = "IPv4", value = ifstats.eth.IPv4_packets }
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else
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rc = rest_utils.consts.err.invalid_args
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rest_utils.answer(rc)
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return
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end
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rest_utils.answer(rc, res) |