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64 lines
1.5 KiB
Lua
64 lines
1.5 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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local stats_utils = require("stats_utils")
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--
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-- Get interface TCP flags packet distribution
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-- Example: curl -u admin:admin "http://localhost:3000/lua/rest/v1/get/interface/tcp_flags_distribution.lua?ifid=1"
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--
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local host_info = url2hostinfo(_GET)
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local ifid = _GET["ifid"]
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local what = {}
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interface.select(ifid)
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local rc = rest_utils.consts.success.ok
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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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if(host_info["host"] ~= nil) then
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local stats = interface.getHostInfo(host_info["host"],host_info["vlan"])
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if stats == nil then return end
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-- join sent and rcvd
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local sent_stats = stats["pktStats.sent"]["tcp_flags"]
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local rcvd_stats = stats["pktStats.recv"]["tcp_flags"]
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for k, _ in pairs(sent_stats) do
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what[k] = sent_stats[k] + rcvd_stats[k]
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end
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else
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local stats = interface.getStats()
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if stats == nil then return end
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what = stats["pktSizeDistribution"]["tcp_flags"]
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end
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local res = {}
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for key, value in pairs(what) do
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if value > 0 then
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res[#res + 1] = {label = pkt_distribution[key], value = 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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res[#res + 1] = {label = "Other", value = 100}
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else
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res = stats_utils.collapse_stats(res, 1, 1 --[[ threshold ]])
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end
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rest_utils.answer(rc, res)
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