Changeset 339

Timestamp:

06/08/12 18:11:20 (12 years ago)

Author:

Kris Deugau

Message:

/trunk

Finally polish up what should be the last of PTR template and
A+PTR template export. See #26.

File:

• trunk/DNSDB.pm (modified) (5 diffs)

trunk/DNSDB.pm

@@ -4023 +4023 @@
   my $domsth = $dbh->prepare("SELECT domain_id,domain,status FROM domains WHERE status=1");
   my $recsth = $dbh->prepare("SELECT host,type,val,distance,weight,port,ttl,record_id ".
-        "FROM records WHERE domain_id=?");
+        "FROM records WHERE domain_id=? AND NOT type=65283");
   $domsth->execute();
   while (my ($domid,$dom,$domstat) = $domsth->fetchrow_array) {
@@ -4089 +4089 @@
     my @o = ($tmp =~ /^(..)(..)$/);     # split into octets
     return sprintf "\\%0.3o\\%0.3o", hex($o[0]), hex($o[1]);;
+  }
+
+## WARNING:  This works to export even the whole Internet's worth of IP space...
+##  if you have the disk/RAM to handle the dataset, and you call this sub based on /16-sized chunks
+##  A /16 took ~3 seconds with a handful of separate records;  adding a /8 pushed export time out to ~13m:40s 
+##  0/0 is estimated to take ~54 hours and ~256G of disk
+##  RAM usage depends on how many non-template entries you have in the set.
+##  This should probably be done on record addition rather than export;  large blocks may need to be done in a
+##  forked process
+  sub __publish_subnet {
+    my $sub = shift;
+    my $recflags = shift;
+    my $hpat = shift;
+    my $fh = shift;
+    my $ttl = shift;
+    my $stamp = shift;
+    my $loc = shift;
+    my $ptronly = shift || 0;
+
+    my $iplist = $sub->splitref(32);
+    foreach (@$iplist) {
+      my $ip = $_->addr;
+      # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
+      next if $ip =~ /\.(0|255)$/;
+      next if $$recflags{$ip};
+      $$recflags{$ip}++;
+      my $rec = $hpat;  # start fresh with the template for each IP
+      _template4_expand(\$rec, $ip);
+      print $fh ($ptronly ? "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec" : "=$rec:$ip").
+        ":$ttl:$stamp:$loc\n";
+    }
   }
 
@@ -4250 +4281 @@
       } elsif ($type == 65282) { # PTR template
 
-##work
         # only useful for v4 with standard DNS software, since this expands all
         # IPs in $zone (or possibly $val?) with autogenerated records
@@ -4256 +4286 @@
         return if $val->{isv6};
 
-        my $iplist = $val->hostenumref;
-        foreach (@$iplist) {
-          my $ip = $_->addr;
-          # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
-          next if $ip =~ /\.(0|255)$/;
-          next if $$recflags{$ip};
-          $$recflags{$ip}++;
-          my $rec = $host;      # start fresh with the template for each IP
-          _template4_expand(\$rec, $ip);
-          print $datafile "^"._ZONE($_, 'ZONE.in-addr.arpa', 'r', '.').":$rec:$ttl:$stamp:$loc\n";
+        if ($val->masklen <= 16) {
+          foreach my $sub ($val->split(16)) {
+            __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
+          }
+        } else {
+          __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 1);
         }
 
@@ -4273 +4299 @@
         # Just In Case.  An A+PTR should be impossible to add to a v6 revzone via API.
         return if $val->{isv6};
-        my $iplist = $val->hostenumref;
-        foreach (@$iplist) {
-          my $ip = $_->addr;
-          # make as if we split the non-octet-aligned block into octet-aligned blocks as with SOA
-          next if $ip =~ /\.(0|255)$/;
-          next if $$recflags{$ip};
-          $$recflags{$ip}++;
-          my $rec = $host;      # start fresh with the template for each IP
-          _template4_expand(\$rec, $ip);
-          print $datafile "=$rec:$ip:$ttl:$stamp:$loc\n";
+
+        if ($val->masklen <= 16) {
+          foreach my $sub ($val->split(16)) {
+            __publish_subnet($sub, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
+          }
+        } else {
+          __publish_subnet($val, $recflags, $host, $datafile, $ttl, $stamp, $loc, 0);
         }