diff options
Diffstat (limited to 'daily-psk.local.rsc')
-rw-r--r-- | daily-psk.local.rsc | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/daily-psk.local.rsc b/daily-psk.local.rsc new file mode 100644 index 0000000..17a60f7 --- /dev/null +++ b/daily-psk.local.rsc @@ -0,0 +1,95 @@ +#!rsc by RouterOS +# RouterOS script: daily-psk.local +# 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 +# +# !! Do not edit this file, it is generated from template! + +:local 0 "daily-psk.local"; +:global GlobalFunctionsReady; +:while ($GlobalFunctionsReady != true) do={ :delay 500ms; } + +:global DailyPskMatchComment; +:global DailyPskQrCodeUrl; +:global Identity; + +:global LogPrintExit2; +:global SendNotification2; +:global SymbolForNotification; +:global UrlEncode; +:global WaitForFile; +:global WaitFullyConnected; + +$WaitFullyConnected; + +# return pseudo-random string for PSK +:local GeneratePSK do={ + :local Date [ :tostr $1 ]; + + :global DailyPskSecrets; + + :local Months { "jan"; "feb"; "mar"; "apr"; "may"; "jun"; + "jul"; "aug"; "sep"; "oct"; "nov"; "dec" }; + + :local Month [ :pick $Date 0 3 ]; + :local Day [ :tonum [ :pick $Date 4 6 ] ]; + :local Year [ :pick $Date 7 11 ]; + + :for MIndex from=0 to=[ :len $Months ] do={ + :if ($Months->$MIndex = $Month) do={ + :set Month ($MIndex + 1); + } + } + + :local A ((14 - $Month) / 12); + :local B ($Year - $A); + :local C ($Month + 12 * $A - 2); + :local WeekDay (7000 + $Day + $B + ($B / 4) - ($B / 100) + ($B / 400) + ((31 * $C) / 12)); + :set WeekDay ($WeekDay - (($WeekDay / 7) * 7)); + + :return (($DailyPskSecrets->0->($Day - 1)) . \ + ($DailyPskSecrets->1->($Month - 1)) . \ + ($DailyPskSecrets->2->$WeekDay)); +} + +:local Seen ({}); +:local Date [ /system/clock/get date ]; +:local NewPsk [ $GeneratePSK $Date ]; + +:foreach AccList in=[ /interface/wireless/access-list/find where comment~$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 $AccList private-pre-shared-key ]; + :local Skip 0; + + :if ($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; + + :if ([ :len [ /interface/wireless/find where name=$IntName !disabled ] ] = 1) do={ + :foreach SeenSsid in=$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" . \ + "SSID: " . $Ssid . "\n" . \ + "PSK: " . $NewPsk . "\n" . \ + "Date: " . $Date . "\n\n" . \ + "A client device specific rule must not exist!"); link=$Link }); + } + } + } +} |