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74 lines
2.7 KiB
Lua
74 lines
2.7 KiB
Lua
--
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-- (C) 2019-20 - ntop.org
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--
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-- ##############################################
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local alert_keys = require "alert_keys"
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package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
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local json = require("dkjson")
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local alert_creators = require "alert_creators"
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local format_utils = require "format_utils"
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-- Import the classes library.
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local classes = require "classes"
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-- Make sure to import the Superclass!
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local alert = require "alert"
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-- ##############################################
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local alert_tcp_syn_flood = classes.class(alert)
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-- ##############################################
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alert_tcp_syn_flood.meta = {
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alert_key = alert_keys.ntopng.alert_tcp_syn_flood,
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i18n_title = "alerts_dashboard.tcp_syn_flood",
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icon = "fas fa-life-ring",
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}
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-- ##############################################
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-- @brief Prepare an alert table used to generate the alert
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-- @param one_param The first alert param
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-- @param another_param The second alert param
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-- @return A table with the alert built
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function alert_tcp_syn_flood:init(one_param, another_param)
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-- Call the paren constructor
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self.super:init()
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self.alert_type_params = alert_creators.createThresholdCross(metric, value, operator, threshold)
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end
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-- #######################################################
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-- @brief Format an alert into a human-readable string
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-- @param ifid The integer interface id of the generated alert
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-- @param alert The alert description table, including alert data such as the generating entity, timestamp, granularity, type
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-- @param alert_type_params Table `alert_type_params` as built in the `:init` method
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-- @return A human-readable string
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function alert_tcp_syn_flood.format(ifid, alert, alert_type_params)
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local alert_consts = require "alert_consts"
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local entity = alert_consts.formatAlertEntity(ifid, alert_consts.alertEntityRaw(alert["alert_entity"]), alert["alert_entity_val"])
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if(alert.alert_subtype == "syn_flood_attacker") then
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return i18n("alert_messages.syn_flood_attacker", {
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entity = firstToUpper(entity),
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host_category = format_utils.formatAddressCategory((json.decode(alert.alert_json)).alert_generation.host_info),
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value = string.format("%u", math.ceil(alert_type_params.value)),
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threshold = alert_type_params.threshold,
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})
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else
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return i18n("alert_messages.syn_flood_victim", {
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entity = firstToUpper(entity),
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host_category = format_utils.formatAddressCategory((json.decode(alert.alert_json)).alert_generation.host_info),
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value = string.format("%u", math.ceil(alert_type_params.value)),
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threshold = alert_type_params.threshold,
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})
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end
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end
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-- #######################################################
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return alert_tcp_syn_flood
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