First parts of DNS forwarding stuff

1 files changed, 126 insertions, 0 deletions

diff --git a/scripts/dns-forwarding/vyatta-dns-forwarding.pl b/scripts/dns-forwarding/vyatta-dns-forwarding.pl
new file mode 100644
index 00000000..01111d4a
--- /dev/null
+++ b/scripts/dns-forwarding/vyatta-dns-forwarding.pl
@@ -0,0 +1,126 @@
+#!/usr/bin/perl
+#
+# Module: vyatta-dns-forwarding.pl
+#
+# **** License ****
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# 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.
+#
+# This code was originally developed by Vyatta, Inc.
+# Portions created by Vyatta are Copyright (C) 2008 Vyatta, Inc.
+# All Rights Reserved.
+#
+# Author: Mohit Mehta
+# Date: August 2008
+# Description: Script to glue Vyatta CLI to dnsmasq daemon
+#
+# **** End License ****
+#
+
+use lib "/opt/vyatta/share/perl5/";
+use VyattaConfig;
+use VyattaMisc;
+use Getopt::Long;
+
+use strict;
+use warnings;
+
+my $dnsforwarding_init = '/etc/init.d/dnsmasq';
+my $dnsforwarding_conf = '/etc/dnsmasq.conf';
+
+sub dnsforwarding_init {
+
+}
+
+sub dnsforwarding_restart {
+    system("$dnsforwarding_init restart 2&>1 /dev/null");
+    print "Setting up DNS forwarding.\n";
+}
+
+sub dnsforwarding_stop {
+    system("$dnsforwarding_init stop 2&>1 /dev/null");
+    print "Stopping DNS forwarding.\n";
+}
+
+sub dnsforwarding_get_constants {
+    my $output;
+
+    my $date = `date`;
+    chomp $date;
+    $output  = "#\n# autogenerated by vyatta-dns-forwarding.pl on $date\n#\n";
+    return $output;
+}
+
+sub dnsforwarding_get_values {
+    my $output = '';
+    my $config = new VyattaConfig;
+
+    $config->setLevel("service dns-forwarding");
+
+    return $output;
+}
+
+sub dnsforwarding_write_file {
+    my ($config) = @_;
+
+    open(my $fh, '>', $dnsforwarding_conf) || die "Couldn't open $dnsforwarding_conf - $!";
+    print $fh $config;
+    close $fh;
+}
+
+sub check_nameserver {
+
+    my $cmd = `grep nameserver /etc/resolv.conf|wc -l`;
+    return $cmd;
+}
+
+#
+# main
+#
+my $init_dnsforwarding;
+my $update_dnsforwarding;
+my $stop_dnsforwarding;
+my $nameserver;
+
+GetOptions("init-dnsforwarding!"   => \$init_dnsforwarding,
+           "update-dnsforwarding!" => \$update_dnsforwarding,
+           "stop-dnsforwarding!"   => \$stop_dnsforwarding,
+           "nameserver!" => \$nameserver);
+
+if (defined $nameserver) {
+    my $nameserver_exists = check_nameserver();
+    if ($nameserver_exists < 1){
+        exit 1;
+    } else {
+        exit 0;
+    }
+}
+
+
+if (defined $init_dnsforwarding) {
+    dnsforwarding_init();
+}
+
+if (defined $update_dnsforwarding) {
+    my $config;
+
+       $config  = dnsforwarding_get_constants();
+       $config .= dnsforwarding_get_values();
+       dnsforwarding_write_file($config);
+       dnsforwarding_restart();
+}
+
+if (defined $stop_dnsforwarding) {
+    dnsforwarding_stop();
+}
+
+exit 0;
+
+# end of file
+