check-lte-firmware-update


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#!rsc
# RouterOS script: check-lte-firmware-update
# Copyright (c) 2018 Christian Hesse <mail@eworm.de>
#
# check for LTE firmware update, send notification e-mails

:global "identity";
:global "sent-lte-firmware-update-notification";

:global SendNotification;

:foreach interface in=[ / interface lte find ] do={
  :local intname [ / interface lte get $interface name ];
  :do {
    :local firmware [ / interface lte firmware-upgrade $interface once as-value ];
    # strip the extra line break (TODO: remove when fixed upstream)
    :set ($firmware->"latest") [ :pick ($firmware->"latest") 0 [ :find ($firmware->"latest") "\n" ] ];
    
    :if ($"sent-lte-firmware-update-notification" = ($firmware->"latest")) do={
      :log debug ("Already sent the LTE firmware update notification for version " . \
        ($firmware->"latest") . ".");
    } else={
      :if (($firmware->"installed") != ($firmware->"latest")) do={
        $SendNotification ("LTE firmware update notification") \
          ("A new firmware version " . ($firmware->"latest") . " is available for " . \
          "LTE interface " . $intname . " on " . $identity . ".");
        :set "sent-lte-firmware-update-notification" ($firmware->"latest");
      }
    }
  } on-error={
    :log debug ("Could not get latest LTE firmware version for interface " . \
      $intname . ".");
  }
}