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Add missing max devices check

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This commit is contained in:
emanuele-f 2019-11-05 16:00:26 +01:00
parent acdab024da
commit 4d322c3c09
2 changed files with 9 additions and 8 deletions
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8
scripts/lua/modules/alert_utils.lua
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@ -2310,10 +2310,18 @@ function check_macs_alerts(ifid)
local active_devices_set = getActiveDevicesHashKey(ifid)
local seen_devices_hash = getFirstSeenDevicesHashKey(ifid)
local seen_devices = ntop.getHashAllCache(seen_devices_hash) or {}
local max_active_devices_cardinality = 16384
local prev_active_devices = swapKeysValues(ntop.getMembersCache(active_devices_set) or {})
local alert_new_devices_enabled = ntop.getPref("ntopng.prefs.alerts.device_first_seen_alert") == "1"
local alert_device_connection_enabled = ntop.getPref("ntopng.prefs.alerts.device_connection_alert") == "1"
local new_active_devices = {}
local num_devices = table.len(seen_devices)
if(num_devices >= max_active_devices_cardinality) then
traceError(TRACE_INFO, TRACE_CONSOLE, string.format("Too many active devices, discarding %u devices", num_devices))
ntop.delCache(active_devices_set)
prev_active_devices = {}
end
callback_utils.foreachDevice(getInterfaceName(ifid), nil, function(devicename, devicestats, devicebase)
-- note: location is always lan when capturing from a local interface