# dns/trunk/DNSDB/ExportBIND.pm # BIND data export/publication # Call through DNSDB.pm's export() sub ## # $Id: ExportBIND.pm 849 2022-09-01 17:17:46Z kdeugau $ # Copyright 2022 Kris Deugau # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . ## package DNSDB::ExportBIND; use strict; use warnings; sub export { # expected to be a DNSDB object my $self = shift; my $dbh = $self->{dbh}; # to be a hash of views/locations, containing lists of zones my %viewzones; # allow for future exports of subgroups of records my $viewlist = $self->getLocList(curgroup => 1); # Fetch active zone list my $revsth = $self->{dbh}->prepare("SELECT rdns_id,revnet,status,changed,default_location FROM revzones WHERE status=1 ". "ORDER BY masklen(revnet) DESC, rdns_id"); # Unflag changed zones, so we can maybe cache the export and not redo everything every time my $zonesth = $self->{dbh}->prepare("UPDATE revzones SET changed='n' WHERE rdns_id=?"); $revsth->execute(); while (my ($revid,$revzone,$revstat,$changed,$defloc) = $revsth->fetchrow_array) { # fetch a list of views/locations present in the zone. we need to publish a file for each one. # in the event that no locations are present (~~ $viewlist is empty), /%view collapses to nothing in the zone path my (@loclist) = $self->{dbh}->selectrow_array("SELECT DISTINCT location FROM records WHERE rdns_id = ?", undef, $revid); push @loclist, $defloc; my $zonepath = $self->{bind_export_zone_path}; my %zonefiles; # to be a list of file handles. ##fixme: convert logical revzone into .arpa name foreach my $loc (@loclist) { local $zonepath =~ s/\%view/$loc/; print "open $zonefiles{$loc}, $zonepath\n"; } } # revsth->fetch # Write the view configuration last, because otherwise we have to be horribly inefficient # at figuring out which zones are visible/present in which views if ($viewlist) { foreach my $view (@{$viewlist}) { #print Dumper($view); # print BINDCONF "view $view->{location} {\n"; print "view $view->{location} {\n"; # could also use an acl { ... }; statement, then match-clients { aclname; };, but that gets hairy # note that some semantics of data visibility need to be handled by the record export, since it's # not 100% clear if the semantics of a tinydns view with an empty IP list (matches anyone) are the # same as a BIND view with match-clients { any; }; if ($view->{iplist}) { # print BINDCONF " match-clients { ".join("; ", $view->iplist)."; };\n"; print " match-clients { ".join("; ", split(/[\s,]+/, $view->{iplist}))."; };\n"; } else { # print BINDCONF " match-clients { any; };\n"; print " match-clients { any; };\n"; } foreach my $zone (@{$viewzones{$view->{location}}}) { ##fixme: notify settings, maybe per-zone? print qq( zone "$zone" IN {\n\ttype master;\n\tnotify no;\n\tfile "db.$zone";\n };\n); } print "};\n\n"; } # foreach @$viewlist } # if $viewlist } # export() 1;