routeros-scripts/lease-script.rsc

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#!rsc by RouterOS
# RouterOS script: lease-script
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# Copyright (c) 2013-2024 Christian Hesse <mail@eworm.de>
# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
#
# requires RouterOS, version=7.12
#
# run scripts on DHCP lease
# https://git.eworm.de/cgit/routeros-scripts/about/doc/lease-script.md
:global GlobalFunctionsReady;
:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
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:local Main do={
:local ScriptName [ :tostr $1 ];
:local leaseActIP [ :tostr $2 ];
:local leaseActMAC [ :tostr $2 ];
:local leaseServerName [ :tostr $2 ];
:local leaseBound [ :tostr $2 ];
:global Grep;
:global IfThenElse;
:global LogPrintExit2;
:global ParseKeyValueStore;
:global ScriptLock;
:if ([ :typeof $leaseActIP ] = "nothing" || \
[ :typeof $leaseActMAC ] = "nothing" || \
[ :typeof $leaseServerName ] = "nothing" || \
[ :typeof $leaseBound ] = "nothing") do={
$LogPrintExit2 error $ScriptName ("This script is supposed to run from ip dhcp-server.") true;
}
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$LogPrintExit2 debug $ScriptName ("DHCP Server " . $leaseServerName . " " . [ $IfThenElse ($leaseBound = 0) \
"de" "" ] . "assigned lease " . $leaseActIP . " to " . $leaseActMAC) false;
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$ScriptLock $ScriptName false 10;
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:if ([ :len [ /system/script/job/find where script=$ScriptName ] ] > 1) do={
$LogPrintExit2 debug $ScriptName ("More invocations are waiting, exiting early.") true;
}
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:local RunOrder ({});
:foreach Script in=[ /system/script/find where source~("\n# provides: lease-script\\b") ] do={
:local ScriptVal [ /system/script/get $Script ];
:local Store [ $ParseKeyValueStore [ $Grep ($ScriptVal->"source") ("\23 provides: lease-script, ") ] ];
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:set ($RunOrder->($Store->"order" . "-" . $ScriptVal->"name")) ($ScriptVal->"name");
}
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:foreach Order,Script in=$RunOrder do={
:do {
$LogPrintExit2 debug $ScriptName ("Running script with order " . $Order . ": " . $Script) false;
/system/script/run $Script;
} on-error={
$LogPrintExit2 warning $ScriptName ("Running script '" . $Script . "' failed!") false;
}
}
}
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$Main [ :jobname ] $leaseActIP $leaseActMAC $leaseServerName $leaseBound;