From 4569cae57f127afd093794310ccd290d2d9fdf36 Mon Sep 17 00:00:00 2001
From: Marius Burkard <m.burkard@pixcept.de>
Date: Wed, 20 Apr 2016 10:58:46 -0400
Subject: [PATCH] Merge branch 'stable-3.1'
---
server/plugins-available/bind_plugin.inc.php | 174 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 169 insertions(+), 5 deletions(-)
diff --git a/server/plugins-available/bind_plugin.inc.php b/server/plugins-available/bind_plugin.inc.php
index c538cb9..3b3179b 100644
--- a/server/plugins-available/bind_plugin.inc.php
+++ b/server/plugins-available/bind_plugin.inc.php
@@ -76,6 +76,148 @@
}
+ //* This creates DNSSEC-Keys and calls soa_dnssec_update.
+ function soa_dnssec_create(&$data) {
+ global $app, $conf;
+
+ //* Load libraries
+ $app->uses("getconf,tpl");
+
+ //* load the server configuration options
+ $dns_config = $app->getconf->get_server_config($conf["server_id"], 'dns');
+
+ //TODO : change this when distribution information has been integrated into server record
+ $filespre = (file_exists('/etc/gentoo-release')) ? 'pri/' : 'pri.';
+
+ $domain = substr($data['new']['origin'], 0, strlen($data['new']['origin'])-1);
+ if (!file_exists($dns_config['bind_zonefiles_dir'].'/'.$filespre.$domain)) return false;
+
+ //* Check Entropy
+ if (file_get_contents('/proc/sys/kernel/random/entropy_avail') < 400) {
+ $app->log('DNSSEC ERROR: We are low on entropy. Not generating new Keys for '.$domain.'. Please consider installing package haveged.', LOGLEVEL_WARN);
+ echo "DNSSEC ERROR: We are low on entropy. Not generating new Keys for $domain. Please consider installing package haveged.\n";
+ return false;
+ }
+
+ //* Verify that we do not already have keys (overwriting-protection)
+ if (file_exists($dns_config['bind_zonefiles_dir'].'/dsset-'.$domain.'.')) {
+ return $this->soa_dnssec_update($data);
+ } else if ($data['new']['dnssec_initialized'] == 'Y') { //In case that we generated keys but the dsset-file was not generated
+ $keycount=0;
+ foreach (glob($dns_config['bind_zonefiles_dir'].'/K'.$domain.'*.key') as $keyfile) {
+ $keycount++;
+ }
+ if ($keycount > 0) {
+ $this->soa_dnssec_sign($data);
+ return true;
+ }
+ }
+
+ //Do some magic...
+ exec('cd '.escapeshellcmd($dns_config['bind_zonefiles_dir']).';'.
+ 'dnssec-keygen -a NSEC3RSASHA1 -b 2048 -n ZONE '.escapeshellcmd($domain).';'.
+ 'dnssec-keygen -f KSK -a NSEC3RSASHA1 -b 4096 -n ZONE '.escapeshellcmd($domain));
+
+ $this->soa_dnssec_sign($data); //Now sign the zone for the first time
+ $data['new']['dnssec_initialized']='Y';
+ }
+
+ function soa_dnssec_sign(&$data) {
+ global $app, $conf;
+
+ //* Load libraries
+ $app->uses("getconf,tpl");
+
+ //* load the server configuration options
+ $dns_config = $app->getconf->get_server_config($conf["server_id"], 'dns');
+
+ //TODO : change this when distribution information has been integrated into server record
+ $filespre = (file_exists('/etc/gentoo-release')) ? 'pri/' : 'pri.';
+
+ $domain = substr($data['new']['origin'], 0, strlen($data['new']['origin'])-1);
+ if (!file_exists($dns_config['bind_zonefiles_dir'].'/'.$filespre.$domain)) return false;
+
+ $zonefile = file_get_contents($dns_config['bind_zonefiles_dir'].'/'.$filespre.$domain);
+ $keycount=0;
+ foreach (glob($dns_config['bind_zonefiles_dir'].'/K'.$domain.'*.key') as $keyfile) {
+ $includeline = '$INCLUDE '.basename($keyfile);
+ if (!preg_match('@'.preg_quote($includeline).'@', $zonefile)) $zonefile .= "\n".$includeline."\n";
+ $keycount++;
+ }
+ if ($keycount != 2) $app->log('DNSSEC Warning: There are more or less than 2 keyfiles for zone '.$domain, LOGLEVEL_WARN);
+ file_put_contents($dns_config['bind_zonefiles_dir'].'/'.$filespre.$domain, $zonefile);
+
+ //Sign the zone and set it valid for max. 16 days
+ exec('cd '.escapeshellcmd($dns_config['bind_zonefiles_dir']).';'.
+ 'dnssec-signzone -A -e +1382400 -3 $(head -c 1000 /dev/random | sha1sum | cut -b 1-16) -N increment -o '.escapeshellcmd($domain).' -t '.$filespre.escapeshellcmd($domain));
+
+ //Write Data back ino DB
+ $dnssecdata = "DS-Records:\n".file_get_contents($dns_config['bind_zonefiles_dir'].'/dsset-'.$domain.'.');
+ $dnssecdata .= "\n------------------------------------\n\nDNSKEY-Records:\n";
+ foreach (glob($dns_config['bind_zonefiles_dir'].'/K'.$domain.'*.key') as $keyfile) {
+ $dnssecdata .= file_get_contents($keyfile)."\n\n";
+ }
+
+ if ($app->dbmaster !== $app->db) $app->dbmaster->query('UPDATE dns_soa SET dnssec_info=?, dnssec_initialized=\'Y\', dnssec_last_signed=? WHERE id=?', $dnssecdata, intval(time()), intval($data['new']['id']));
+ $app->db->query('UPDATE dns_soa SET dnssec_info=?, dnssec_initialized=\'Y\', dnssec_last_signed=? WHERE id=?', $dnssecdata, intval(time()), intval($data['new']['id']));
+ }
+
+ function soa_dnssec_update(&$data, $new=false) {
+ global $app, $conf;
+
+ //* Load libraries
+ $app->uses("getconf,tpl");
+
+ //* load the server configuration options
+ $dns_config = $app->getconf->get_server_config($conf["server_id"], 'dns');
+
+ //TODO : change this when distribution information has been integrated into server record
+ $filespre = (file_exists('/etc/gentoo-release')) ? 'pri/' : 'pri.';
+
+ $domain = substr($data['new']['origin'], 0, strlen($data['new']['origin'])-1);
+ if (!file_exists($dns_config['bind_zonefiles_dir'].'/'.$filespre.$domain)) return false;
+
+ //* Check for available entropy
+ if (file_get_contents('/proc/sys/kernel/random/entropy_avail') < 200) {
+ $app->log('DNSSEC ERROR: We are low on entropy. This could cause server script to fail. Please consider installing package haveged.', LOGLEVEL_ERR);
+ echo "DNSSEC ERROR: We are low on entropy. This could cause server script to fail. Please consider installing package haveged.\n";
+ return false;
+ }
+
+ if (!$new && !file_exists($dns_config['bind_zonefiles_dir'].'/dsset-'.$domain.'.')) $this->soa_dnssec_create($data);
+
+ $dbdata = $app->db->queryOneRecord('SELECT id,serial FROM dns_soa WHERE id=?', intval($data['new']['id']));
+ exec('cd '.escapeshellcmd($dns_config['bind_zonefiles_dir']).';'.
+ 'named-checkzone '.escapeshellcmd($domain).' '.escapeshellcmd($dns_config['bind_zonefiles_dir']).'/'.$filespre.escapeshellcmd($domain).' | egrep -ho \'[0-9]{10}\'', $serial, $retState);
+ if ($retState != 0) {
+ $app->log('DNSSEC Error: Error in Zonefile for '.$domain, LOGLEVEL_ERR);
+ return false;
+ }
+
+ $this->soa_dnssec_sign($data);
+ }
+
+ function soa_dnssec_delete(&$data) {
+ global $app, $conf;
+
+ //* Load libraries
+ $app->uses("getconf,tpl");
+
+ //* load the server configuration options
+ $dns_config = $app->getconf->get_server_config($conf["server_id"], 'dns');
+
+ //TODO : change this when distribution information has been integrated into server record
+ $filespre = (file_exists('/etc/gentoo-release')) ? 'pri/' : 'pri.';
+
+ $domain = substr($data['new']['origin'], 0, strlen($data['new']['origin'])-1);
+
+ unlink($dns_config['bind_zonefiles_dir'].'/K'.$domain.'.+*');
+ unlink($dns_config['bind_zonefiles_dir'].'/'.$filespre.$domain.'.signed');
+ unlink($dns_config['bind_zonefiles_dir'].'/dsset-'.$domain.'.');
+
+ if ($app->dbmaster !== $app->db) $app->dbmaster->query('UPDATE dns_soa SET dnssec_info=\'\', dnssec_initialized=\'N\' WHERE id=?', intval($data['new']['id']));
+ $app->db->query('UPDATE dns_soa SET dnssec_info=\'\', dnssec_initialized=\'N\' WHERE id=?', intval($data['new']['id']));
+ }
function soa_insert($event_name, $data) {
global $app, $conf;
@@ -145,7 +287,25 @@
unset($records_out);
unset($zone);
}
-
+
+ //* DNSSEC-Implementation
+ if($data['old']['origin'] != $data['new']['origin']) {
+ if (@$data['old']['dnssec_initialized'] == 'Y' && strlen(@$data['old']['origin']) > 3) $this->soa_dnssec_delete($data); //delete old keys
+ if ($data['new']['dnssec_wanted'] == 'Y') $this->soa_dnssec_create($data);
+ }
+ else if ($data['new']['dnssec_wanted'] == 'Y' && $data['old']['dnssec_initialized'] == 'N') $this->soa_dnssec_create($data);
+ else if ($data['new']['dnssec_wanted'] == 'N' && $data['old']['dnssec_initialized'] == 'Y') { //delete old signed file if dnssec is no longer wanted
+ //TODO : change this when distribution information has been integrated into server record
+ if (file_exists('/etc/gentoo-release')) {
+ $filename = $dns_config['bind_zonefiles_dir'].'/pri/'.str_replace("/", "_", substr($data['old']['origin'], 0, -1));
+ }
+ else {
+ $filename = $dns_config['bind_zonefiles_dir'].'/pri.'.str_replace("/", "_", substr($data['old']['origin'], 0, -1));
+ }
+ if(is_file($filename.'.signed')) unlink($filename.'.signed');
+ } else if ($data['new']['dnssec_wanted'] == 'Y') $this->soa_dnssec_update($data);
+ // END DNSSEC
+
//* rebuild the named.conf file if the origin has changed or when the origin is inserted.
//if($this->action == 'insert' || $data['old']['origin'] != $data['new']['origin']) {
$this->write_named_conf($data, $dns_config);
@@ -163,8 +323,9 @@
if(is_file($filename)) unlink($filename);
if(is_file($filename.'.err')) unlink($filename.'.err');
- }
-
+ if(is_file($filename.'.signed')) unlink($filename.'.signed');
+ }
+
//* Restart bind nameserver if update_acl is not empty, otherwise reload it
if($data['new']['update_acl'] != '') {
$app->services->restartServiceDelayed('bind', 'restart');
@@ -197,6 +358,9 @@
if(is_file($zone_file_name.'.err')) unlink($zone_file_name.'.err');
$app->log("Deleting BIND domain file: ".$zone_file_name, LOGLEVEL_DEBUG);
+ //* DNSSEC-Implementation
+ if ($data['old']['dnssec_initialized'] == 'Y') exec('/usr/local/ispconfig/server/scripts/dnssec-delete.sh '.$data['old']['origin']); //delete keys
+
//* Reload bind nameserver
$app->services->restartServiceDelayed('bind', 'reload');
@@ -323,7 +487,7 @@
global $app, $conf;
//* Only write the master file for the current server
- $tmps = $app->db->queryAllRecords("SELECT origin, xfer, also_notify, update_acl FROM dns_soa WHERE active = 'Y' AND server_id=?", $conf["server_id"]);
+ $tmps = $app->db->queryAllRecords("SELECT origin, xfer, also_notify, update_acl, dnssec_wanted FROM dns_soa WHERE active = 'Y' AND server_id=?", $conf["server_id"]);
$zones = array();
//* Check if the current zone that triggered this function has at least one NS record
@@ -341,8 +505,8 @@
//* Loop trough zones
foreach($tmps as $tmp) {
-
$zone_file = $pri_zonefiles_path.str_replace("/", "_", substr($tmp['origin'], 0, -1));
+ if ($tmp['dnssec_wanted'] == 'Y') $zone_file .= '.signed'; //.signed is for DNSSEC-Implementation
$options = '';
if(trim($tmp['xfer']) != '') {
--
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