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-rw-r--r--dhcp-to-dns52
1 files changed, 23 insertions, 29 deletions
diff --git a/dhcp-to-dns b/dhcp-to-dns
index e965faf..cd3b793 100644
--- a/dhcp-to-dns
+++ b/dhcp-to-dns
@@ -19,50 +19,44 @@
:local Ttl 5m;
:local CommentPrefix "managed by dhcp-to-dns for ";
-:foreach Static in=[ / ip dns static find where comment ~ $CommentPrefix ] do={
- :local MacAddress [ $CharacterReplace [ / ip dns static get $Static comment ] $CommentPrefix "" ];
- :local IpAddress [ / ip dns static get $Static address ];
- :local HostName [ / ip dns static get $Static name ];
- :if ([ / ip dhcp-server lease print count-only where mac-address=$MacAddress address=$IpAddress dynamic=yes ] > 0) do={
- :log debug ("Lease for " . $MacAddress . " (" . $HostName . ") still exists. Not deleting DNS entry.");
+:foreach DnsRecord in=[ / ip dns static find where comment ~ $CommentPrefix ] do={
+ :local DnsRecordVal [ / ip dns static get $DnsRecord ];
+ :local MacAddress [ $CharacterReplace ($DnsRecordVal->"comment") $CommentPrefix "" ];
+ :if ([ / ip dhcp-server lease print count-only where mac-address=$MacAddress address=($DnsRecordVal->"address") dynamic=yes ] > 0) do={
+ :log debug ("Lease for " . $MacAddress . " (" . $DnsRecordVal->"host-name" . ") still exists. Not deleting DNS entry.");
} else={
:local Found false;
- :log info ("Lease expired for " . $MacAddress . " (" . $HostName . "), deleting DNS entry.");
- / ip dns static remove $Static;
+ :log info ("Lease expired for " . $MacAddress . " (" . $DnsRecordVal->"name" . "), deleting DNS entry.");
+ / ip dns static remove $DnsRecord;
}
}
:foreach Lease in=[ / ip dhcp-server lease find where dynamic=yes ] do={
- :local Mac [ / ip dhcp-server lease get $Lease mac-address ];
- :local DhcpIp [ / ip dhcp-server lease get $Lease address ];
- :local Comment ($CommentPrefix . $Mac);
- :local HostName [ $CharacterReplace [ / ip dhcp-server lease get $Lease host-name ] " " "" ];
+ :local LeaseVal [ / ip dhcp-server lease get $Lease ];
+ :local Comment ($CommentPrefix . $LeaseVal->"mac-address");
+ :local HostName [ $CharacterReplace ($LeaseVal->"host-name") " " "" ];
:if ($HostName = "") do={
- :set HostName [ $CharacterReplace [ / ip dhcp-server lease get $Lease mac-address ] ":" "-" ];
+ :set HostName [ $CharacterReplace ($LeaseVal->"mac-address") ":" "-" ];
}
:local Fqdn ($HostName . "." . $Zone);
- :local DnsNode [ / ip dns static find where name=$Fqdn ];
- :if ([ :len $DnsNode ] > 0) do={
- :local DnsIp [ / ip dns static get $DnsNode address ];
- :local Leases [ / ip dhcp-server lease find where host-name=$HostName dynamic=yes ];
- :local HostNameCount [ / ip dhcp-server lease print count-only where host-name=$HostName dynamic=yes ];
- :if ($HostNameCount > 1) do={
- :foreach J,Lease in=$Leases do={
- :if ($J + 1 = $HostNameCount) do={
- :set DhcpIp [ / ip dhcp-server lease get $Lease address ];
- }
- }
+ :local DnsRecord [ / ip dns static find where name=$Fqdn ];
+ :if ([ :len $DnsRecord ] > 0) do={
+ :local DnsIp [ / ip dns static get $DnsRecord address ];
+
+ :local HostLeases [ / ip dhcp-server lease find where host-name=($LeaseVal->"host-name") dynamic=yes ];
+ :if ([ :len $HostLeases ] > 1) do={
+ :set ($LeaseVal->"address") [ / ip dhcp-server lease get ($HostLeases->([ :len $HostLeases ] - 1)) address ];
}
- :if ($DnsIp = $DhcpIp) do={
+ :if ($DnsIp = $LeaseVal->"address") do={
:log debug ("DNS entry for " . $Fqdn . " does not need updating.");
} else={
- :log info ("Replacing DNS entry for " . $Fqdn . ", new address is " . $DhcpIp . ".");
- / ip dns static set name=$Fqdn address=$DhcpIp ttl=$Ttl comment=$Comment $DnsNode;
+ :log info ("Replacing DNS entry for " . $Fqdn . ", new address is " . $LeaseVal->"address" . ".");
+ / ip dns static set name=$Fqdn address=($LeaseVal->"address") ttl=$Ttl comment=$Comment $DnsRecord;
}
} else={
- :log info ("Adding new DNS entry for " . $Fqdn . ", address is " . $DhcpIp . ".");
- / ip dns static add name=$Fqdn address=$DhcpIp ttl=$Ttl comment=$Comment;
+ :log info ("Adding new DNS entry for " . $Fqdn . ", address is " . $LeaseVal->"address" . ".");
+ / ip dns static add name=$Fqdn address=($LeaseVal->"address") ttl=$Ttl comment=$Comment;
}
}