dhcp-to-dns: prepare full names for A and CNAME records

This commit is contained in:
Christian Hesse 2023-10-27 22:34:52 +02:00
parent 576364f44a
commit a769ed072b

View file

@ -73,48 +73,50 @@ $ScriptLock $0 false 10;
:local NetworkInfo [ $ParseKeyValueStore ($NetworkVal->"comment") ];
:local NetDomain ([ $IfThenElse ([ :len ($NetworkInfo->"name-extra") ] > 0) ($NetworkInfo->"name-extra" . ".") ] . \
[ $EitherOr [ $EitherOr ($NetworkInfo->"domain") ($NetworkVal->"domain") ] $Domain ]);
:local FullA ($MacDash . "." . $NetDomain);
:local FullCN ($HostName . "." . $NetDomain);
:local DnsRecord [ /ip/dns/static/find where comment=$Comment (!type or type=A) ];
:if ([ :len $DnsRecord ] > 0) do={
:local DnsRecordVal [ /ip/dns/static/get $DnsRecord ];
:if ($DnsRecordVal->"address" = $LeaseVal->"active-address" && $DnsRecordVal->"name" = ($MacDash . "." . $NetDomain)) do={
:if ($DnsRecordVal->"address" = $LeaseVal->"active-address" && $DnsRecordVal->"name" = $FullA) do={
$LogPrintExit2 debug $0 ("The A record for " . $LeaseVal->"active-mac-address" . " in " . \
$LeaseVal->"server" . " does not need updating.") false;
} else={
$LogPrintExit2 info $0 ("Updating A record for " . $LeaseVal->"active-mac-address" . " in " . \
$LeaseVal->"server" . " (" . ($MacDash . "." . $NetDomain) . " -> " . $LeaseVal->"active-address" . ").") false;
/ip/dns/static/set address=($LeaseVal->"active-address") name=($MacDash . "." . $NetDomain) $DnsRecord;
$LeaseVal->"server" . " (" . $FullA . " -> " . $LeaseVal->"active-address" . ").") false;
/ip/dns/static/set address=($LeaseVal->"active-address") name=$FullA $DnsRecord;
}
:local CName [ /ip/dns/static/find where comment=$Comment type=CNAME ];
:if ([ :len $CName ] > 0) do={
:local CNameVal [ /ip/dns/static/get $CName ];
:if ($CNameVal->"name" != ($HostName . "." . $NetDomain) || $CNameVal->"cname" != ($MacDash . "." . $NetDomain)) do={
:if ($CNameVal->"name" != $FullCN || $CNameVal->"cname" != $FullA) do={
$LogPrintExit2 info $0 ("Deleting CNAME record with wrong data for " . $LeaseVal->"active-mac-address" . " in " . \
$LeaseVal->"server" . ".") false;
/ip/dns/static/remove $CName;
}
}
:if ([ :len $HostName ] > 0 && [ :len [ /ip/dns/static/find where name=($HostName . "." . $NetDomain) type=CNAME ] ] = 0) do={
:if ([ :len $HostName ] > 0 && [ :len [ /ip/dns/static/find where name=$FullCN type=CNAME ] ] = 0) do={
$LogPrintExit2 info $0 ("Adding CNAME record for " . $LeaseVal->"active-mac-address" . " in " . \
$LeaseVal->"server" . " (" . ($HostName . "." . $NetDomain) . " -> " . ($MacDash . "." . $NetDomain) . ").") false;
/ip/dns/static/add name=($HostName . "." . $NetDomain) type=CNAME cname=($MacDash . "." . $NetDomain) ttl=$Ttl comment=$Comment place-before=$PlaceBefore;
$LeaseVal->"server" . " (" . $FullCN . " -> " . $FullA . ").") false;
/ip/dns/static/add name=$FullCN type=CNAME cname=$FullA ttl=$Ttl comment=$Comment place-before=$PlaceBefore;
}
} else={
$LogPrintExit2 info $0 ("Adding A record for " . $LeaseVal->"active-mac-address" . " in " . \
$LeaseVal->"server" . " (" . ($MacDash . "." . $NetDomain) . " -> " . $LeaseVal->"active-address" . ").") false;
/ip/dns/static/add name=($MacDash . "." . $NetDomain) type=A address=($LeaseVal->"active-address") ttl=$Ttl comment=$Comment place-before=$PlaceBefore;
:if ([ :len $HostName ] > 0 && [ :len [ /ip/dns/static/find where name=($HostName . "." . $NetDomain) type=CNAME ] ] = 0) do={
$LeaseVal->"server" . " (" . $FullA . " -> " . $LeaseVal->"active-address" . ").") false;
/ip/dns/static/add name=$FullA type=A address=($LeaseVal->"active-address") ttl=$Ttl comment=$Comment place-before=$PlaceBefore;
:if ([ :len $HostName ] > 0 && [ :len [ /ip/dns/static/find where name=$FullCN type=CNAME ] ] = 0) do={
$LogPrintExit2 info $0 ("Adding CNAME record for " . $LeaseVal->"active-mac-address" . " in " . \
$LeaseVal->"server" . " (" . ($HostName . "." . $NetDomain) . " -> " . ($MacDash . "." . $NetDomain) . ").") false;
/ip/dns/static/add name=($HostName . "." . $NetDomain) type=CNAME cname=($MacDash . "." . $NetDomain) ttl=$Ttl comment=$Comment place-before=$PlaceBefore;
$LeaseVal->"server" . " (" . $FullCN . " -> " . $FullA . ").") false;
/ip/dns/static/add name=$FullCN type=CNAME cname=$FullA ttl=$Ttl comment=$Comment place-before=$PlaceBefore;
}
}
:if ([ :len [ /ip/dns/static/find where name=($MacDash . "." . $NetDomain) (!type or type=A) ] ] > 1) do={
$LogPrintOnce warning $0 ("The name '" . $MacDash . "." . $NetDomain . "' appeared in more than one A record!");
:if ([ :len [ /ip/dns/static/find where name=$FullA (!type or type=A) ] ] > 1) do={
$LogPrintOnce warning $0 ("The name '" . $FullA . "' appeared in more than one A record!");
}
} else={
$LogPrintExit2 debug $0 ("No address available... Ignoring.") false;