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#!/usr/bin/perl -I /root/tgmanage
#
# USAGE:
# Generate BIND Zone-file data based on the file hosts-to-add.txt
# cat hosts-to-add.txt | tools/generate-dnsrr.pl
#
# Generate input data for nsupdate, to add FORWARD records based on hosts-to-add.txt
# cat hosts-to-add.txt | tools/generate-dnsrr.pl --domain foo.tgXX.gathering.org -ns
#
# Generate input data for nsupdate, to add REVERSE records based on hosts-to-add.txt
# cat hosts-to-add.txt | tools/generate-dnsrr.pl --domain foo.tgXX.gathering.org -ns -rev
#
# Generate input data for nsupdate, to DELETE forward records based on hosts-to-add.txt
# cat hosts-to-DELETE.txt | tools/generate-dnsrr.pl --domain foo.tgXX.gathering.org -ns -del
#
# Generate input data for nsupdate, to DELETE reverse records based on hosts-to-add.txt
# cat hosts-to-DELETE.txt | tools/generate-dnsrr.pl --domain foo.tgXX.gathering.org -ns -rev -del
#
# Command-syntax to send this to nsupdate, running it on the DNS server:
# cat file.txt | tools/generate-dnsrr.pl --dom foo -ns | ssh $dnsserver "nsupdate -k /etc/bind/Kdhcp_updater.+157+XXXXX"
#
# Generate DNS for linknets:
# cat /tmp/linknets.txt | perl -wple 's,;, ,g' | perl tools/make-linknet-hosts.pl | tools/generate-dnsrr.pl --domain tgXX.gathering.org -ns -rev | ssh $dnsserver "nsupdate -k /etc/bind/Kdhcp_updater.XXXXX"
#
# Format of input:
# hostname ipv4-adress ipv6-address
# If any of ipv4-address or ipv6-address are NOT set for the host, specify "nope"
# Lines starting with # will (should) be skipped (comments)
#
# Example:
#
# host1 192.168.0.1 2001:db8:f00::1
# host2 nope 2001:db8:f00::2
# host3 192.168.0.3 nope
# # comment, to be ignored.
# host4 192.168.0.4
use strict;
use warnings;
use lib '..';
BEGIN {
require "include/config.pm";
eval {
require "include/config.local.pm";
};
}
use Net::IP;
use Getopt::Long;
my ($delete, $auto, $nsupdate, $reverse, $domain);
if (@ARGV > 0) {
GetOptions(
'del|delete' => \$delete,
'a|auto' => \$auto,
'ns|nsupdate' => \$nsupdate,
'r|reverse' => \$reverse,
'domain=s' => \$domain
)
}
if ($nsupdate || $reverse){
unless (defined($domain)){
print "Missing domain.\n";
exit 1 unless defined($domain);
}
}
$domain = "." . $domain if defined($domain);
print "server $nms::config::pri_v4\n" if ($nsupdate || $reverse);
while (<STDIN>) {
next if /^(#|\s+$)/; # skip if comment, or blank line
my ($hostname, $ipv4, $ipv6) = split;
$hostname = lc($hostname);
unless ($ipv6){
if ($auto){
# Get IPv6-address based on IPv4-address
my ($first, $second, $third, $fourth) = split('\.', $ipv4);
# TODO: Need to do some more logic, since base_ipv6net looks like '2a02:ed02::/32'
#$ipv6 = $nms::config::base_ipv6net . $third . "::" . $fourth;
}
}
if ($reverse){
# print ptr
print_ptr($hostname, $ipv4, $ipv6);
} else {
# print forward
print_fwd($hostname, $ipv4, $ipv6);
}
}
sub print_ptr{
my ($hostname, $ipv4, $ipv6) = @_;
# IPv4
unless ( $ipv4 eq "nope" ) {
my $v4 = new Net::IP($ipv4);
print "update add " . $v4->reverse_ip() . " 3600 IN PTR " . $hostname . $domain .".\n" unless $delete;
print "update delete " . $v4->reverse_ip() . " IN PTR\n" if $delete;
print "send\n";
}
# IPv6
if (( not ($ipv6 eq "nope") ) && ( $ipv6 )) {
my $v6 = new Net::IP($ipv6);
print "update add " . $v6->reverse_ip() . " 3600 IN PTR " . $hostname . $domain . ".\n" unless $delete;
print "update delete " . $v6->reverse_ip() . " IN PTR\n" if $delete;
print "send\n";
}
}
sub print_fwd{
my ($hostname, $ipv4, $ipv6) = @_;
if ($nsupdate){
unless ( $ipv4 eq "nope" ) {
# IPv4
print "prereq nxrrset " . $hostname . $domain . " IN A\n" unless $delete;
print "update add " . $hostname . $domain . " 3600 IN A $ipv4\n" unless $delete;
print "update delete " . $hostname . $domain . " IN A\n" if $delete;
print "send\n";
}
if (( not ($ipv6 eq "nope") ) && ( $ipv6 )) {
# IPv6
print "prereq nxrrset " . $hostname . $domain . " IN AAAA\n" unless $delete;
print "update add " . $hostname . $domain . " 3600 IN AAAA $ipv6\n" unless $delete;
print "update delete " . $hostname . $domain . " IN AAAA\n" if $delete;
print "send\n";
}
} else {
# IPv4
unless ( $ipv4 eq "nope" ) {
printf ("%-24s%s\t%s\t%s\n", $hostname, "IN", "A", $ipv4);
}
# IPv6
if (( not ($ipv6 eq "nope") ) && ( $ipv6 )) {
printf ("%-24s%s\t%s\t%s\n", $hostname, "IN", "AAAA", $ipv6) if ($ipv6);
}
}
}
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