diff options
Diffstat (limited to 'ipv6-update.rsc')
| -rw-r--r-- | ipv6-update.rsc | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/ipv6-update.rsc b/ipv6-update.rsc new file mode 100644 index 0000000..580a426 --- /dev/null +++ b/ipv6-update.rsc @@ -0,0 +1,107 @@ +#!rsc by RouterOS +# RouterOS script: ipv6-update +# Copyright (c) 2013-2025 Christian Hesse <mail@eworm.de> +# https://rsc.eworm.de/COPYING.md +# +# requires RouterOS, version=7.15 +# +# update firewall and dns settings on IPv6 prefix change +# https://rsc.eworm.de/doc/ipv6-update.md + +:local ExitOK false; +:onerror Err { + :global GlobalConfigReady; :global GlobalFunctionsReady; + :retry { :if ($GlobalConfigReady != true || $GlobalFunctionsReady != true) \ + do={ :error ("Global config and/or functions not ready."); }; } delay=500ms max=50; + :local ScriptName [ :jobname ]; + + :global LogPrint; + :global ParseKeyValueStore; + :global ScriptLock; + + :local NaAddress $"na-address"; + :local NaValid $"na-valid"; + :local PdPrefix $"pd-prefix"; + :local PdValid $"pd-valid"; + + :if ([ $ScriptLock $ScriptName ] = false) do={ + :set ExitOK true; + :error false; + } + + :if ([ :typeof $NaAddress ] = "str") do={ + $LogPrint info $ScriptName ("An address (" . $NaAddress . ") was acquired, not a prefix. Ignoring."); + :set ExitOK true; + :error false; + } + + :if ([ :typeof $PdPrefix ] = "nothing" || [ :typeof $PdValid ] = "nothing") do={ + $LogPrint error $ScriptName ("This script is supposed to run from ipv6 dhcp-client."); + :set ExitOK true; + :error false; + } + + :if ($PdValid != 1) do={ + $LogPrint info $ScriptName ("The prefix " . $PdPrefix . " is no longer valid. Ignoring."); + :set ExitOK true; + :error false; + } + + :local Pool [ /ipv6/pool/get [ find where prefix=$PdPrefix ] name ]; + :if ([ :len [ /ipv6/firewall/address-list/find where comment=("ipv6-pool-" . $Pool) ] ] = 0) do={ + /ipv6/firewall/address-list/add list=("ipv6-pool-" . $Pool) address=:: comment=("ipv6-pool-" . $Pool) dynamic=yes; + $LogPrint warning $ScriptName ("Added dynamic ipv6 address list entry for ipv6-pool-" . $Pool); + } + :local AddrList [ /ipv6/firewall/address-list/find where comment=("ipv6-pool-" . $Pool) ]; + :local OldPrefix [ /ipv6/firewall/address-list/get ($AddrList->0) address ]; + + :if ($OldPrefix != $PdPrefix) do={ + $LogPrint info $ScriptName ("Updating IPv6 address list with new IPv6 prefix " . $PdPrefix); + /ipv6/firewall/address-list/set address=$PdPrefix $AddrList; + + # give the interfaces a moment to receive their addresses + :delay 2s; + + :foreach ListEntry in=[ /ipv6/firewall/address-list/find where comment~("^ipv6-pool-" . $Pool . ",") ] do={ + :local ListEntryVal [ /ipv6/firewall/address-list/get $ListEntry ]; + :local Comment [ $ParseKeyValueStore ($ListEntryVal->"comment") ]; + + :local Prefix [ /ipv6/address/find where from-pool=$Pool interface=($Comment->"interface") global ]; + :if ([ :len $Prefix ] = 1) do={ + :set Prefix [ /ipv6/address/get $Prefix address ]; + + :if ([ :typeof [ :find ($ListEntryVal->"address") "/128" ] ] = "num" ) do={ + :set Prefix ([ :toip6 [ :pick $Prefix 0 [ :find $Prefix "/64" ] ] ] & ffff:ffff:ffff:ffff::); + :local Address ($ListEntryVal->"address"); + :local Address ($Prefix | ([ :toip6 [ :pick $Address 0 [ :find $Address "/128" ] ] ] & ::ffff:ffff:ffff:ffff)); + + $LogPrint info $ScriptName ("Updating IPv6 address list with new IPv6 host address " . $Address . \ + " from interface " . ($Comment->"interface")); + /ipv6/firewall/address-list/set address=$Address $ListEntry; + } else={ + $LogPrint info $ScriptName ("Updating IPv6 address list with new IPv6 prefix " . $Prefix . \ + " from interface " . ($Comment->"interface")); + /ipv6/firewall/address-list/set address=$Prefix $ListEntry; + } + } + } + + :foreach Record in=[ /ip/dns/static/find where comment~("^ipv6-pool-" . $Pool . ",") ] do={ + :local RecordVal [ /ip/dns/static/get $Record ]; + :local Comment [ $ParseKeyValueStore ($RecordVal->"comment") ]; + + :local Prefix [ /ipv6/address/find where from-pool=$Pool interface=($Comment->"interface") global ]; + :if ([ :len $Prefix ] = 1) do={ + :set Prefix [ /ipv6/address/get $Prefix address ]; + :set Prefix ([ :toip6 [ :pick $Prefix 0 [ :find $Prefix "/64" ] ] ] & ffff:ffff:ffff:ffff::); + :local Address ($Prefix | ([ :toip6 ($RecordVal->"address") ] & ::ffff:ffff:ffff:ffff)); + + $LogPrint info $ScriptName ("Updating DNS record for " . ($RecordVal->"name") . \ + ($RecordVal->"regexp") . " to " . $Address); + /ip/dns/static/set address=$Address $Record; + } + } + } +} do={ + :global ExitError; $ExitError $ExitOK [ :jobname ] $Err; +} |