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ipsec-to-dns: move code into function
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Christian Hesse
parent
a36ec397d6
commit
85dbe3a868
1 changed files with 55 additions and 50 deletions
105
ipsec-to-dns.rsc
105
ipsec-to-dns.rsc
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@ -8,67 +8,72 @@
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# and add/remove/update DNS entries from IPSec mode-config
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# https://git.eworm.de/cgit/routeros-scripts/about/doc/ipsec-to-dns.md
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:local 0 [ :jobname ];
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:global GlobalFunctionsReady;
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:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
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:global Domain;
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:global HostNameInZone;
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:global Identity;
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:global PrefixInZone;
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:local Main do={
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:local ScriptName [ :tostr $1 ];
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:global CharacterReplace;
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:global EscapeForRegEx;
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:global IfThenElse;
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:global LogPrintExit2;
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:global ScriptLock;
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:global Domain;
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:global HostNameInZone;
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:global Identity;
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:global PrefixInZone;
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$ScriptLock $0;
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:global CharacterReplace;
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:global EscapeForRegEx;
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:global IfThenElse;
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:global LogPrintExit2;
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:global ScriptLock;
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:local Zone \
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([ $IfThenElse ($PrefixInZone = true) "ipsec." ] . \
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[ $IfThenElse ($HostNameInZone = true) ($Identity . ".") ] . $Domain);
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:local Ttl 5m;
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:local CommentPrefix ("managed by " . $0 . " for ");
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:local CommentString ("--- " . $0 . " above ---");
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$ScriptLock $ScriptName;
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:if ([ :len [ /ip/dns/static/find where (name=$CommentString or (comment=$CommentString and name=-)) type=NXDOMAIN disabled ] ] = 0) do={
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/ip/dns/static/add name=$CommentString type=NXDOMAIN disabled=yes;
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$LogPrintExit2 warning $0 ("Added disabled static dns record with name '" . $CommentString . "'.") false;
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}
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:local PlaceBefore ([ /ip/dns/static/find where (name=$CommentString or (comment=$CommentString and name=-)) type=NXDOMAIN disabled ]->0);
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:local Zone \
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([ $IfThenElse ($PrefixInZone = true) "ipsec." ] . \
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[ $IfThenElse ($HostNameInZone = true) ($Identity . ".") ] . $Domain);
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:local Ttl 5m;
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:local CommentPrefix ("managed by " . $ScriptName . " for ");
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:local CommentString ("--- " . $ScriptName . " above ---");
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:foreach DnsRecord in=[ /ip/dns/static/find where comment~("^" . $CommentPrefix) ] do={
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:local DnsRecordVal [ /ip/dns/static/get $DnsRecord ];
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:local PeerId [ $CharacterReplace ($DnsRecordVal->"comment") $CommentPrefix "" ];
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:if ([ :len [ /ip/ipsec/active-peers/find where id~("^(CN=)?" . [ $EscapeForRegEx $PeerId ] . "\$") \
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dynamic-address=($DnsRecordVal->"address") ] ] > 0) do={
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$LogPrintExit2 debug $0 ("Peer " . $PeerId . " (" . $DnsRecordVal->"name" . ") still exists. Not deleting DNS entry.") false;
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} else={
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:local Found false;
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$LogPrintExit2 info $0 ("Peer " . $PeerId . " (" . $DnsRecordVal->"name" . ") has gone, deleting DNS entry.") false;
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/ip/dns/static/remove $DnsRecord;
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:if ([ :len [ /ip/dns/static/find where (name=$CommentString or (comment=$CommentString and name=-)) type=NXDOMAIN disabled ] ] = 0) do={
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/ip/dns/static/add name=$CommentString type=NXDOMAIN disabled=yes;
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$LogPrintExit2 warning $ScriptName ("Added disabled static dns record with name '" . $CommentString . "'.") false;
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}
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}
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:local PlaceBefore ([ /ip/dns/static/find where (name=$CommentString or (comment=$CommentString and name=-)) type=NXDOMAIN disabled ]->0);
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:foreach Peer in=[ /ip/ipsec/active-peers/find where !(dynamic-address=[]) ] do={
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:local PeerVal [ /ip/ipsec/active-peers/get $Peer ];
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:local PeerId [ $CharacterReplace ($PeerVal->"id") "CN=" "" ];
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:local Comment ($CommentPrefix . $PeerId);
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:local HostName [ :pick $PeerId 0 [ :find ($PeerId . ".") "." ] ];
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:local Fqdn ($HostName . "." . $Zone);
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:local DnsRecord [ /ip/dns/static/find where name=$Fqdn ];
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:if ([ :len $DnsRecord ] > 0) do={
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:local DnsIp [ /ip/dns/static/get $DnsRecord address ];
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:if ($DnsIp = $PeerVal->"dynamic-address") do={
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$LogPrintExit2 debug $0 ("DNS entry for " . $Fqdn . " does not need updating.") false;
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:foreach DnsRecord in=[ /ip/dns/static/find where comment~("^" . $CommentPrefix) ] do={
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:local DnsRecordVal [ /ip/dns/static/get $DnsRecord ];
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:local PeerId [ $CharacterReplace ($DnsRecordVal->"comment") $CommentPrefix "" ];
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:if ([ :len [ /ip/ipsec/active-peers/find where id~("^(CN=)?" . [ $EscapeForRegEx $PeerId ] . "\$") \
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dynamic-address=($DnsRecordVal->"address") ] ] > 0) do={
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$LogPrintExit2 debug $ScriptName ("Peer " . $PeerId . " (" . $DnsRecordVal->"name" . ") still exists. Not deleting DNS entry.") false;
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} else={
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$LogPrintExit2 info $0 ("Replacing DNS entry for " . $Fqdn . ", new address is " . $PeerVal->"dynamic-address" . ".") false;
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/ip/dns/static/set name=$Fqdn address=($PeerVal->"dynamic-address") ttl=$Ttl comment=$Comment $DnsRecord;
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:local Found false;
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$LogPrintExit2 info $ScriptName ("Peer " . $PeerId . " (" . $DnsRecordVal->"name" . ") has gone, deleting DNS entry.") false;
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/ip/dns/static/remove $DnsRecord;
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}
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}
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:foreach Peer in=[ /ip/ipsec/active-peers/find where !(dynamic-address=[]) ] do={
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:local PeerVal [ /ip/ipsec/active-peers/get $Peer ];
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:local PeerId [ $CharacterReplace ($PeerVal->"id") "CN=" "" ];
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:local Comment ($CommentPrefix . $PeerId);
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:local HostName [ :pick $PeerId 0 [ :find ($PeerId . ".") "." ] ];
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:local Fqdn ($HostName . "." . $Zone);
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:local DnsRecord [ /ip/dns/static/find where name=$Fqdn ];
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:if ([ :len $DnsRecord ] > 0) do={
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:local DnsIp [ /ip/dns/static/get $DnsRecord address ];
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:if ($DnsIp = $PeerVal->"dynamic-address") do={
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$LogPrintExit2 debug $ScriptName ("DNS entry for " . $Fqdn . " does not need updating.") false;
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} else={
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$LogPrintExit2 info $ScriptName ("Replacing DNS entry for " . $Fqdn . ", new address is " . $PeerVal->"dynamic-address" . ".") false;
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/ip/dns/static/set name=$Fqdn address=($PeerVal->"dynamic-address") ttl=$Ttl comment=$Comment $DnsRecord;
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}
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} else={
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$LogPrintExit2 info $ScriptName ("Adding new DNS entry for " . $Fqdn . ", address is " . $PeerVal->"dynamic-address" . ".") false;
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/ip/dns/static/add name=$Fqdn address=($PeerVal->"dynamic-address") ttl=$Ttl comment=$Comment place-before=$PlaceBefore;
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}
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} else={
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$LogPrintExit2 info $0 ("Adding new DNS entry for " . $Fqdn . ", address is " . $PeerVal->"dynamic-address" . ".") false;
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/ip/dns/static/add name=$Fqdn address=($PeerVal->"dynamic-address") ttl=$Ttl comment=$Comment place-before=$PlaceBefore;
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}
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}
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$Main [ :jobname ];
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