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dhcp-to-dns: handle duplicate leases earlier

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This commit is contained in:
Christian Hesse
2023-04-12 23:13:26 +02:00
parent f3876b0637
commit 4c416cb39e
1 changed files with 5 additions and 6 deletions
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11
dhcp-to-dns.rsc
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@ -57,6 +57,11 @@ $ScriptLock $0 false 10;
:local LeaseVal;
:do {
:set LeaseVal [ /ip/dhcp-server/lease/get $Lease ];
:local DupMacLeases [ /ip/dhcp-server/lease/find where mac-address=($LeaseVal->"mac-address") status=bound ];
:if ([ :len $DupMacLeases ] > 1) do={
$LogPrintExit2 debug $0 ("Multiple bound leases found for mac-address " . ($LeaseVal->"mac-address") . ", using last one.") false;
:set LeaseVal [ /ip/dhcp-server/lease/get ($DupMacLeases->([ :len $DupMacLeases ] - 1)) ];
}
} on-error={
$LogPrintExit2 debug $0 ("A lease just vanished, ignoring.") false;
}
@ -71,12 +76,6 @@ $ScriptLock $0 false 10;
:if ([ :len $DnsRecord ] > 0) do={
:local DnsIp [ /ip/dns/static/get $DnsRecord address ];
:local DupMacLeases [ /ip/dhcp-server/lease/find where mac-address=($LeaseVal->"mac-address") status=bound ];
:if ([ :len $DupMacLeases ] > 1) do={
$LogPrintExit2 debug $0 ("Multiple bound leases found for mac-address " . ($LeaseVal->"mac-address") . ", using ip address of last one.") false;
:set ($LeaseVal->"address") [ /ip/dhcp-server/lease/get ($DupMacLeases->([ :len $DupMacLeases ] - 1)) address ];
}
:if ($DnsIp = $LeaseVal->"address") do={
$LogPrintExit2 debug $0 ("DNS entry for " . ($MacDash . "." . $Domain) . " does not need updating.") false;
} else={