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Use wireless network with daily psk

ℹ️ Info: This script can not be used on its own but requires the base installation. See main README for details.

Description

This script is supposed to provide a wifi network which changes the passphrase to a pseudo-random string daily.

Sample notification

Requirements and installation

Just install this script.

Depending on whether you use wifi package (/interface/wifi), legacy wifi with CAPsMAN (/caps-man) or local wireless interface (/interface/wireless) you need to install a different script and add schedulers to run the script:

For wifi:

$ScriptInstallUpdate daily-psk.wifi;
/system/scheduler/add interval=1d name=daily-psk on-event="/system/script/run daily-psk.wifi;" start-time=03:00:00;
/system/scheduler/add name=daily-psk@startup on-event="/system/script/run daily-psk.wifi;" start-time=startup;

For legacy CAPsMAN:

$ScriptInstallUpdate daily-psk.capsman;
/system/scheduler/add interval=1d name=daily-psk on-event="/system/script/run daily-psk.capsman;" start-time=03:00:00;
/system/scheduler/add name=daily-psk@startup on-event="/system/script/run daily-psk.capsman;" start-time=startup;

For legacy local interface:

$ScriptInstallUpdate daily-psk.local;
/system/scheduler/add interval=1d name=daily-psk on-event="/system/script/run daily-psk.local;" start-time=03:00:00;
/system/scheduler/add name=daily-psk@startup on-event="/system/script/run daily-psk.local;" start-time=startup;

These will update the passphrase on boot and nightly at 3:00.

Configuration

The configuration goes to global-config-overlay, these are the parameters:

DailyPskMatchComment: pattern to match the wireless access list comment
DailyPskSecrets: an array with pseudo random strings

ℹ️ Info: Copy relevant configuration from global-config (the one without -overlay) to your local global-config-overlay and modify it to your specific needs.

Then add an access list entry. For wifi:

/interface/wifi/access-list/add comment="Daily PSK" ssid-regexp="-guest\$" passphrase="ToBeChangedDaily";