diff options
Diffstat (limited to 'netwatch-dns')
-rw-r--r-- | netwatch-dns | 93 |
1 files changed, 1 insertions, 92 deletions
diff --git a/netwatch-dns b/netwatch-dns index 4eb3285..2da00ca 100644 --- a/netwatch-dns +++ b/netwatch-dns @@ -1,94 +1,3 @@ #!rsc by RouterOS -# RouterOS script: netwatch-dns -# Copyright (c) 2022-2023 Christian Hesse <mail@eworm.de> -# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md # -# monitor and manage dns/doh with netwatch -# https://git.eworm.de/cgit/routeros-scripts/about/doc/netwatch-dns.md - -:local 0 "netwatch-dns"; -:global GlobalFunctionsReady; -:while ($GlobalFunctionsReady != true) do={ :delay 500ms; } - -:global CertificateAvailable; -:global EitherOr; -:global LogPrintExit2; -:global ParseKeyValueStore; -:global ScriptLock; - -$ScriptLock $0; - -:if ([ /system/resource/get uptime ] < 5m) do={ - $LogPrintExit2 info $0 ("System just booted, giving netwatch some time to settle.") true; -} - -:local DnsServers ({}); -:local DnsFallback ({}); -:local DnsCurrent [ /ip/dns/get servers ]; - -:foreach Host in=[ /tool/netwatch/find where comment~"dns" !disabled ] do={ - :local HostVal [ /tool/netwatch/get $Host ]; - :local HostInfo [ $ParseKeyValueStore ($HostVal->"comment") ]; - - :if ($HostVal->"status" = "up" && $HostInfo->"disabled" != true) do={ - :if ($HostInfo->"dns" = true) do={ - :set DnsServers ($DnsServers, $HostVal->"host"); - } - :if ($HostInfo->"dns-fallback" = true) do={ - :set DnsFallback ($DnsFallback, $HostVal->"host"); - } - } -} - -:if ([ :len $DnsServers ] > 0) do={ - :if ($DnsServers != $DnsCurrent) do={ - $LogPrintExit2 info $0 ("Updating DNS servers: " . [ :tostr $DnsServers ]) false; - /ip/dns/set servers=$DnsServers; - /ip/dns/cache/flush; - } -} else={ - :if ([ :len $DnsFallback ] > 0) do={ - :if ($DnsFallback != $DnsCurrent) do={ - $LogPrintExit2 info $0 ("Updating DNS servers to fallback: " . \ - [ :tostr $DnsFallback ]) false; - /ip/dns/set servers=$DnsFallback; - /ip/dns/cache/flush; - } - } -} - -:local DohServer ""; -:local DohCurrent [ /ip/dns/get use-doh-server ]; -:local DohCert ""; - -:foreach Host in=[ /tool/netwatch/find where comment~"doh" !disabled ] do={ - :local HostVal [ /tool/netwatch/get $Host ]; - :local HostInfo [ $ParseKeyValueStore ($HostVal->"comment") ]; - - :if ($HostVal->"status" = "up" && $HostInfo->"doh" = true && \ - $HostInfo->"disabled" != true && $DohServer = "") do={ - :set DohServer [ $EitherOr ($HostInfo->"doh-url") \ - ("https://" . $HostVal->"host" . "/dns-query") ]; - :set DohCert ($HostInfo->"doh-cert"); - } -} - -:if ($DohServer != "") do={ - :if ($DohServer != $DohCurrent) do={ - $LogPrintExit2 info $0 ("Updating DoH server: " . $DohServer) false; - :if ([ :len $DohCert ] > 0) do={ - /ip/dns/set use-doh-server=""; - :if ([ $CertificateAvailable $DohCert ] = false) do={ - $LogPrintExit2 warning $0 ("Downloading certificate failed, trying without.") false; - } - } - /ip/dns/set use-doh-server=$DohServer; - /ip/dns/cache/flush; - } -} else={ - :if ($DohCurrent != "") do={ - $LogPrintExit2 info $0 ("DoH server (" . $DohCurrent . ") is down, disabling.") false; - /ip/dns/set use-doh-server=""; - /ip/dns/cache/flush; - } -} +# dummy for migration |