Difine new alert type snmp_trap. Add ability to trigger snmp_trap from C.

scripts/lua/modules/alert_definitions/other/alert_snmp_trap.lua

@@ -0,0 +1,58 @@
+--
+-- (C) 2019-24 - ntop.org
+--
+
+-- ##############################################
+
+local other_alert_keys = require "other_alert_keys"
+-- Import the classes library.
+local classes = require "classes"
+-- Make sure to import the Superclass!
+local alert = require "alert"
+local alert_entities = require "alert_entities"
+
+-- ##############################################
+
+local alert_snmp_trap = classes.class(alert)
+
+-- ##############################################
+
+alert_snmp_trap.meta = {
+   alert_key = other_alert_keys.alert_snmp_trap,
+   i18n_title = "alerts_dashboard.alert_snmp_trap_title",
+   icon = "fas fa-fw fa-power-off",
+   entities = {
+      alert_entities.snmp_device
+   },
+}
+
+-- ##############################################
+
+-- @brief Prepare an alert table used to generate the alert
+-- @param device_ip A string with the ip address of the snmp device
+-- @param description The trap description
+-- @return A table with the alert built
+function alert_snmp_trap:init(device_ip, description)
+   -- Call the parent constructor
+   self.super:init()
+
+   self.alert_type_params = {
+      device = device_ip,
+      description = description
+   }
+end
+
+-- #######################################################
+
+-- @brief Format an alert into a human-readable string
+-- @param ifid The integer interface id of the generated alert
+-- @param alert The alert description table, including alert data such as the generating entity, timestamp, granularity, type
+-- @param alert_type_params Table `alert_type_params` as built in the `:init` method
+-- @return A human-readable string
+function alert_snmp_trap.format(ifid, alert, alert_type_params)
+   return(alert_type_params.description or '')
+end
+
+-- #######################################################
+
+return alert_snmp_trap