- foreach $zone (@zones) {
- $cfg= $zone_cfg{$zone} || { 'style' => 'foreign' };
- progress(sprintf "%-40s %s", $zone, $$cfg{'style'});
- if ($check) {
- eval { zone_check() };
- zone_warning("checks failed: $@") if length $@;
- }
- zone_output() if $install;
- }
-}
-
-sub zone_warning ($) {
- my ($w) = @_;
- $w =~ s/\n$//;
- $w =~ s,\n, // ,g;
- print STDERR "$zone: warning: $w\n" or die $!;
- $warnings++;
-}
-
-sub zone_warnmore ($) {
- print STDERR " $_[0]\n" or die $!;
-}
-
-use vars qw(%delgs # $delgs{$nameserver_list} = [ $whosaidandwhy ]
- %auths # $auths{$nameserver_list} = [ $whosaidandwhy ]
- %glue # $glue{$name}{$addr_list} = [ $whosaidandwhy ]
- %soas # $soa{"$origin $serial"} = [ $whosaidandwhy ]
- @to_check # ($addr,$whyask,\%delgs_or_auths,$glueless_ok, ...)
- @to_check_soa # ($addr,$whyask, ...)
- );
-
-sub zone_check () {
- my ($super_zone, @super_nsnames,
- $super_ns, @super_ns_addrs, $super_ns_addr, $s, $wa, $zcr,
- %nsrrset_checked, %soa_checked);
-
- %delgs= %auths= %glue= ();
- @to_check= @to_check_soa= ();
-
- $super_zone= $zone;
- for (;;) {
- debug_trace("zone $zone superzone $super_zone");
- $super_zone =~ s/^[^.]+\.// or die "no superzone ? ($super_zone)\n";
- ($rcode,@super_nsnames)= lookup($super_zone,'ns-','06');
- last if !$rcode;
- }
- for $super_ns (@super_nsnames) {
- $super_ns= lc $super_ns;
- ($rcode,@this_ns_addrs)= lookup($super_ns,'a','0');
- foreach $super_ns_addr (@this_ns_addrs) {
- push @to_check,
- $super_ns_addr,
- "addr for $super_ns, server for $super_zone, parent"
- \%delgs, 0;
- }
- }
- for (;;) {
- # We do these in order so that we always do NS RRset checks on
- # nameservers that came from other NS RRsets first; otherwise
- # we might set nsrrset_checked due to a glueless_ok check,
- # and then not check for gluefulness later.
- if (($addr,$wa,$nsrrset_ref,$glueless_ok,@to_check) = @to_check) {
- next if $nsrrset_checked{$ns}++;
- push @to_check_soa, $addr, $why;
- zone_check_nsrrset($super_ns_addr,"$addr, $wa",
- %$delgs_or_auths,$glueless_ok);
- } elsif (($addr,$wa) = @to_check_soa) {
- next if !$soa_checked{$ns}++;
- zone_check_soa($addr,"$addr, $wa");
- }
- }
- zone_consistency();
-}
-
-sub zone_consistency() {
- my ($d);
- zone_consistency_set('delegations',%delgs);
- foreach $d (keys %delgs) { delete $auths{$d}; }
- zone_consistency_set('zone nameserver rrset',%auths);
- foreach $h (keys %glue) {
- zone_consistency_set("glue for $h", %{ $glue{$h} });
- }
-}
-
-sub zone_consistency_set ($\%) {
- my ($msg,$set) = @_;
- my ($d,$o);
- if (keys(%$set) != 1) {
- zone_warning("inconsistent $msg:");
- foreach $d (keys %$set) {
- foreach $o (@$d) { zone_warnmore(" $d from $o"); }
- }
- }
-}
-
-sub zone_check_soa ($$) {
- my ($uaddr,$ww) = @_;
- my ($lame,$origin,$got,$rcode,@soa_addrs,$soa_addr);
- $lame= 'dead or lame';
- dig::dig({
- if ($dig::type eq 'flags:') {
- $lame= $dig::rdata =~ m/ aa / ? 'lame' : '';
- } elsif ($dig::type eq 'soa' && $dig::owner eq $zone && !$lame) {
- die "several SOAs ? $why" if defined $origin;
- $dig::rdata =~ m/^(\S+) \S+ (\d+) /
- or die "soa $dig::rdata ? $why";
- $origin= $1;
- $got= "$1 $2";
- }
- },
- $zone,'soa',$uaddr);
- $lame= 'broken' if !$lame && !defined $origin;
- if ($lame) { zone_warning("$lame server $ww"); return; }
- push @{ $soas{$got} }, $why;
- ($rcode,@soa_addrs)= lookup($origin,'a','0');
- foreach $soa_addr (@soa_addrs) {
- push @to_check,
- $soa_addr,
- "addr for $origin, SOA ORIGIN from $why";
- }
-}
-
-sub zone_check_nsrrset ($$\%\%) {
- my ($uaddr,$ww, $delgs_or_auths,$glueless_ok) = @_;
- my (@s, $s, %s2g, @glue, $glue);
- dig::dig({
- if ($dig::type eq 'ns' && $dig::owner eq $zone) {
- $s2g{lc $dig::rdata} = [ ];
- } elsif ($dig::type eq 'a' && exists $s2g{$dig::owner}) {
- push @to_check,
- $dig::rdata,
- "glue for $dig::owner, from (eg) $why",
- \%auths, 0;
- push @{ $s2g{$dig::rdata} }, $dig::rdata;
- }
- },
- $zone,'ns',$uaddr);
- @s= sort keys %s2g;
- foreach $s (@s) {
- @glue= @{ $s2g{$s} };
- if (!length @glue) {
- zone_warning("glueless NS $s, from $ww") unless $glueless_ok;
- next;
- }
- $glue= join ' ', sort @glue;
- push @{ $glue{$s}{$glue} }, $why;
- }
- $s= join ' ', @s;
- push @{ $nsrrset_ref->{$s} }, $why;
-}
-
-sub zone_output () {
- $output_contents{$$cfg{'output'}}.=
- sprintf(<<'END',
-zone "%s" {
- type %s;
- file "%s";
-};
-END
- $zone,
- $$cfg{'style'} eq 'primary' ? 'master' : 'slave',
- $$cfg{'file'});
-}
-
-sub debug_dump ($) {
- my ($vn);
- return unless $debug;
- local $Data::Dumper::Terse=1;
- foreach $vn (split /\s+/, $_[0]) {
- print "$vn := ", eval "Dumper(\\$vn)";
- }
-}
-
-sub cfg_fail ($) { die "$0: $where:\n $_[0]\n"; }