#!rsc by RouterOS # RouterOS script: daily-psk%TEMPL% # Copyright (c) 2013-2023 Christian Hesse <mail@eworm.de> # Michael Gisbers <michael@gisbers.de> # https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md # # update daily PSK (pre shared key) # https://git.eworm.de/cgit/routeros-scripts/about/doc/daily-psk.md # # !! This is just a template! Replace '%PATH%' with 'caps-man' # !! or 'interface wireless'! :local 0 "daily-psk%TEMPL%"; :global GlobalFunctionsReady; :while ($GlobalFunctionsReady != true) do={ :delay 500ms; } :global DailyPskMatchComment; :global DailyPskQrCodeUrl; :global Identity; :global FormatLine; :global LogPrintExit2; :global SendNotification2; :global SymbolForNotification; :global UrlEncode; :global WaitForFile; :global WaitFullyConnected; $WaitFullyConnected; # return pseudo-random string for PSK :local GeneratePSK do={ :local Date [ :tostr $1 ]; :global DailyPskSecrets; :global ParseDate; :set Date [ $ParseDate $Date ]; :local A ((14 - ($Date->"month")) / 12); :local B (($Date->"year") - $A); :local C (($Date->"month") + 12 * $A - 2); :local WeekDay (7000 + ($Date->"day") + $B + ($B / 4) - ($B / 100) + ($B / 400) + ((31 * $C) / 12)); :set WeekDay ($WeekDay - (($WeekDay / 7) * 7)); :return (($DailyPskSecrets->0->(($Date->"day") - 1)) . \ ($DailyPskSecrets->1->(($Date->"month") - 1)) . \ ($DailyPskSecrets->2->$WeekDay)); } :local Seen ({}); :local Date [ /system/clock/get date ]; :local NewPsk [ $GeneratePSK $Date ]; :foreach AccList in=[ /%PATH%/access-list/find where comment~$DailyPskMatchComment ] do={ :local IntName [ /interface/wireless/access-list/get $AccList interface ]; :local Ssid [ /interface/wireless/get $IntName ssid ]; :local OldPsk [ /interface/wireless/access-list/get $AccList private-pre-shared-key ]; # /interface/wireless above - /caps-man below :local SsidRegExp [ /caps-man/access-list/get $AccList ssid-regexp ]; :local Configuration ([ /caps-man/configuration/find where ssid~$SsidRegExp ]->0); :local Ssid [ /caps-man/configuration/get $Configuration ssid ]; :local OldPsk [ /caps-man/access-list/get $AccList private-passphrase ]; :local Skip 0; :if ($NewPsk != $OldPsk) do={ $LogPrintExit2 info $0 ("Updating daily PSK for " . $Ssid . " to " . $NewPsk . " (was " . $OldPsk . ")") false; /interface/wireless/access-list/set $AccList private-pre-shared-key=$NewPsk; /caps-man/access-list/set $AccList private-passphrase=$NewPsk; :if ([ :len [ /interface/wireless/find where name=$IntName !disabled ] ] = 1) do={ :if ([ :len [ /caps-man/actual-interface-configuration/find where configuration.ssid=$Ssid !disabled ] ] > 0) do={ :foreach SeenSsid in=$Seen do={ :if ($SeenSsid = $Ssid) do={ $LogPrintExit2 debug $0 ("Already sent a mail for SSID " . $Ssid . ", skipping.") false; :set Skip 1; } } :if ($Skip = 0) do={ :set Seen ($Seen, $Ssid); :local Link ($DailyPskQrCodeUrl . \ "?scale=8&level=1&ssid=" . [ $UrlEncode $Ssid ] . "&pass=" . [ $UrlEncode $NewPsk ]); $SendNotification2 ({ origin=$0; \ subject=([ $SymbolForNotification "calendar" ] . "daily PSK " . $Ssid); \ message=("This is the daily PSK on " . $Identity . ":\n\n" . \ [ $FormatLine "SSID" $Ssid ] . "\n" . \ [ $FormatLine "PSK" $NewPsk ] . "\n" . \ [ $FormatLine "Date" $Date ] . "\n\n" . \ "A client device specific rule must not exist!"); link=$Link }); } } } }