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Diffstat (limited to 'config/syslog-ng/syslog-ng.inc')
| -rw-r--r-- | config/syslog-ng/syslog-ng.inc | 432 |
1 files changed, 432 insertions, 0 deletions
diff --git a/config/syslog-ng/syslog-ng.inc b/config/syslog-ng/syslog-ng.inc new file mode 100644 index 00000000..b56cef39 --- /dev/null +++ b/config/syslog-ng/syslog-ng.inc @@ -0,0 +1,432 @@ +<?php +/* $Id$ */ +/* + syslog-ng.inc + Copyright (C) 2012 Lance Leger + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ + +require_once('globals.inc'); +require_once('config.inc'); +require_once('util.inc'); +require_once('pfsense-utils.inc'); +require_once('pkg-utils.inc'); +require_once('service-utils.inc'); + +if(!function_exists("filter_configure")) + require_once("filter.inc"); + +function syslogng_get_real_interface_address($interface) { + $interface = convert_friendly_interface_to_real_interface_name($interface); + $line = trim(shell_exec("ifconfig $interface | grep inet | grep -v inet6 | awk '{ print \$2, \$4 }'")); + list($ip, $netmask) = explode(" ", $line); + + return array($ip, long2ip(hexdec($netmask))); +} + +function syslogng_install_command() { + conf_mount_rw(); + syslogng_install_cron(true); + conf_mount_ro(); + syslogng_resync(); +} + +function syslogng_deinstall_command() { + conf_mount_rw(); + exec("/usr/local/etc/rc.d/syslog-ng.sh stop"); + unlink_if_exists("/usr/local/etc/rc.d/syslog-ng.sh"); + syslogng_install_cron(false); + conf_mount_ro(); + filter_configure(); +} + +function syslogng_validate_general($post, $input_errors) { + global $config; + + $objects = $config['installedpackages']['syslogngadvanced']['config']; + + if(empty($post['interfaces'])) { + $input_errors[] = 'You must select at least one interface in \'Interfaces\' field'; + } else { + $post['interfaces'] = implode(",", $post['interfaces']); + } + + if(!is_port($post['default_port'])) + $input_errors[] = 'You must enter a valid port number in the \'Default Port\' field'; + + $sockstat = trim(shell_exec("sockstat -l -P " . $post['default_protocol'] . " -p " . $post['default_port'] . " | grep -v ^USER | grep -v syslog-ng")); + if(!empty($sockstat)) + $input_errors[] = 'The port specified in the \'Default Port\' field is already in use'; + + if(!preg_match("/^\\/[^?*:;{}\\\\]+[^\\/]$/", $post['default_logdir'])) { + $input_errors[] = 'You must enter a valid directory in the \'Default Log Directory\' field'; + } elseif($post['default_logdir'] == "/var/log") { + $input_errors[] = 'You must enter a valid directory in the \'Default Log Directory\' field -- /var/log is reserved for pfSense'; + } + + if(!preg_match("/^[^\\/?*:;{}\\\\]+$/", $post['default_logfile'])) + $input_errors[] = 'You must enter a valid file in the \'Default Log File\' field'; + + $default_objects = syslogng_build_default_objects($post); + + if(empty($objects)) { + $objects = $default_objects; + } else { + $objects = syslogng_merge_objects($objects, $default_objects); + } + + if($errors = syslogng_test_object_syntax($objects)) + $input_errors[] = "Syslog-ng syntax test failed:\n" . $errors; +} + +function syslogng_validate_advanced($post, $input_errors) { + global $config; + + $objects = $config['installedpackages']['syslogngadvanced']['config']; + + if($post['objectname'] == '_DEFAULT') { + $input_errors[] = 'Creation or modification of \'_DEFAULT\' objects not permitted. Change default settings under \'General\' tab.'; + } + + $new_object[] = array("objecttype"=>$post['objecttype'], "objectname"=>$post['objectname'], "objectparameters"=>$post['objectparameters']); + + if(empty($objects)) { + $objects = $new_object; + } else { + $objects = syslogng_merge_objects($objects, $new_object); + } + + if($errors = syslogng_test_object_syntax($objects)) + $input_errors[] = "Syslog-ng syntax test failed:\n" . $errors; +} + +function syslogng_install_cron($should_install) { + global $config, $g; + + if($g['booting']==true) + return; + + if(!$config['cron']['item']) + return; + + $x=0; + $rotate_job_id=-1; + $rotate_is_installed = false; + + foreach($config['cron']['item'] as $item) { + if(strstr($item['task_name'], "syslogng_rotate_logs")) { + $rotate_job_id = $x; + } + $x++; + } + $need_write = false; + switch($should_install) { + case true: + if($rotate_job_id < 0) { + $cron_item = array(); + $cron_item['task_name'] = "syslogng_rotate_logs"; + $cron_item['minute'] = "0"; + $cron_item['hour'] = "*"; + $cron_item['mday'] = "*"; + $cron_item['month'] = "*"; + $cron_item['wday'] = "*"; + $cron_item['who'] = "root"; + $cron_item['command'] = "/usr/bin/nice -n20 /usr/local/sbin/logrotate /usr/local/etc/logrotate.conf"; + $config['cron']['item'][] = $cron_item; + $need_write = true; + } + if($need_write) { + parse_config(true); + write_config("Adding syslog-ng Cron Jobs"); + } + break; + case false: + if($rotate_job_id >= 0) { + unset($config['cron']['item'][$rotate_job_id]); + $need_write = true; + } + if($need_write) { + parse_config(true); + write_config("Removing syslog-ng Cron Jobs"); + } + break; + } + configure_cron(); +} + +function syslogng_build_default_objects($settings) { + $default_objects = array(); + + $interfaces = $settings['interfaces']; + $default_protocol = $settings['default_protocol']; + $default_port = $settings['default_port']; + $default_logdir = $settings['default_logdir']; + $default_logfile = $settings['default_logfile']; + + $default_objects[0] = array("objecttype"=>"source", "objectname"=>"_DEFAULT", "objectparameters"=>"{ internal(); syslog(transport($default_protocol) port($default_port)"); + foreach (explode(",", $interfaces) as $interface) { + $interface_address = syslogng_get_real_interface_address($interface); + if($interface_address[0]) { + $default_objects[0]['objectparameters'] .= " ip({$interface_address[0]})"; + } + } + $default_objects[0]['objectparameters'] .= "); };"; + $default_objects[1] = array("objecttype"=>"destination", "objectname"=>"_DEFAULT", "objectparameters"=>"{ file(\"$default_logdir/$default_logfile\"); };"); + $default_objects[2] = array("objecttype"=>"log", "objectname"=>"_DEFAULT", "objectparameters"=>"{ source(_DEFAULT); destination(_DEFAULT); };"); + + return $default_objects; +} + + +function syslogng_merge_objects($objects1, $objects2) +{ + foreach($objects2 as $object2) { + $match = 0; + foreach($objects1 as &$object1) { + if(($object2['objecttype'] == $object1['objecttype']) && ($object2['objectname'] == $object1['objectname'])) { + $object1 = $object2; + $match = 1; + } + } + if($match == 0) + array_push($objects1, $object2); + } + + return $objects1; +} + +function syslogng_test_object_syntax($objects) { + exec("mv /usr/local/etc/syslog-ng.conf /usr/local/etc/syslog-ng.conf.backup"); + syslogng_build_conf($objects); + $errors = trim(shell_exec('/usr/local/sbin/syslog-ng --syntax-only 2>&1')); + exec("mv /usr/local/etc/syslog-ng.conf /usr/local/etc/syslog-ng.conf.tested"); + exec("mv /usr/local/etc/syslog-ng.conf.backup /usr/local/etc/syslog-ng.conf"); + + return $errors; +} + +function syslogng_get_log_files($objects) { + $log_files = array(); + + foreach($objects as $object) { + if($object['objecttype'] == 'destination') { + preg_match("/file\(['\"]([^'\"]*)['\"]/", $object['objectparameters'], $match); + if($match) { + $log_file = $match[1]; + array_push($log_files, $log_file); + } + } + } + + return $log_files; +} + +function syslogng_build_conf($objects) { + $conf = "# This file is automatically generated by pfSense\n"; + $conf .= "# Do not edit manually !\n"; + $conf .= "@version:3.3\n"; + + foreach($objects as $object) { + if($object['objecttype'] == 'log' || $object['objecttype'] == 'options') { + $conf .= $object['objecttype'] . " " . $object['objectparameters'] . "\n"; + } else { + $conf .= $object['objecttype'] . " " . $object['objectname'] . " " . $object['objectparameters'] . "\n"; + } + } + + file_put_contents('/usr/local/etc/syslog-ng.conf', $conf); +} + +function syslogng_build_logrotate_conf($settings, $objects) { + $conf = "# This file is automatically generated by pfSense\n"; + $conf .= "# Do not edit manually !\n"; + + $compress_archives = $settings['compress_archives']; + $compress_type = $settings['compress_type']; + $archive_frequency = $settings['archive_frequency']; + $max_archives = $settings['max_archives']; + + $log_files = syslogng_get_log_files($objects); + + foreach($log_files as $log_file) { + $conf .= "$log_file "; + } + + $conf .= "{\n"; + $conf .= "\trotate $max_archives\n"; + $conf .= "\t$archive_frequency\n"; + + if($compress_archives == 'on') { + $conf .= "\tcompress\n"; + if($compress_type == 'bz2') { + $conf .= "\tcompresscmd bzip2\n"; + } + } + + $conf .= "\tpostrotate\n"; + $conf .= "\t\tkill -s HUP `cat /var/run/syslog-ng.pid`\n"; + $conf .= "\tendscript\n"; + $conf .= "}\n"; + + file_put_contents('/usr/local/etc/logrotate.conf', $conf); +} + +function syslogng_generate_rules($type) { + global $config; + + $settings = $config['installedpackages']['syslogng']['config'][0]; + + $interfaces = ($settings['interfaces'] ? $settings['interfaces'] : 'lan'); + $default_protocol = ($settings['default_protocol'] ? $settings['default_protocol'] : 'udp'); + $default_port = ($settings['default_port'] ? $settings['default_port'] : 5140); + + $rules = ""; + switch($type) { + case 'rule': + foreach ($interfaces as $interface) { + $rules .= "pass in quick on $interface proto $default_protocol from any to !($interface) port $default_port no state label\n"; + } + break; + } + + return $rules; +} + +function syslogng_resync() { + global $config; + conf_mount_rw(); + + $settings = $config['installedpackages']['syslogng']['config'][0]; + $objects = $config['installedpackages']['syslogngadvanced']['config']; + + if(!isset($settings['enable'])) + $settings['enable'] = 'off'; + if(!isset($settings['interfaces'])) + $settings['interfaces'] = 'lan'; + if(!isset($settings['default_protocol'])) + $settings['default_protocol'] = 'udp'; + if(!isset($settings['default_port'])) + $settings['default_port'] = 5140; + if(!isset($settings['default_logdir'])) + $settings['default_logdir'] = '/var/syslog-ng'; + if(!isset($settings['default_logfile'])) + $settings['default_logfile'] = 'default.log'; + if(!isset($settings['archive_frequency'])) + $settings['archive_frequency'] = 'daily'; + if(!isset($settings['compress_archives'])) + $settings['compress_archives'] = 'on'; + if(!isset($settings['compress_type'])) + $settings['compress_type'] = 'gz'; + if(!isset($settings['max_archives'])) + $settings['max_archives'] = 30; + + $default_objects = syslogng_build_default_objects($settings); + + if(empty($objects)) { + $objects = $default_objects; + } else { + $objects = syslogng_merge_objects($objects, $default_objects); + } + + $sort = array(); + foreach($objects as $k=>$v) { + $sort['objecttype'][$k] = $v['objecttype']; + $sort['objectname'][$k] = $v['objectname']; + } + array_multisort($sort['objecttype'], SORT_ASC, $sort['objectname'], SORT_ASC, $objects); + + syslogng_build_conf($objects); + syslogng_build_logrotate_conf($settings, $objects); + + $config['installedpackages']['syslogng']['config'][0] = $settings; + $config['installedpackages']['syslogngadvanced']['config'] = $objects; + + if($settings['enable'] == 'on') { + if(!file_exists($settings['default_logdir'])) { + exec("mkdir -p " . $settings['default_logdir']); + } + + syslogng_write_rcfile(); + + if(!is_service_running('syslog-ng')) { + log_error("Starting syslog-ng"); + exec("/usr/local/etc/rc.d/syslog-ng.sh start"); + } else { + log_error("Reloading syslog-ng for configuration sync"); + exec("/usr/local/etc/rc.d/syslog-ng.sh restart"); + } + + // Sleep for a couple seconds to give syslog-ng a chance to fire up fully. + for ($i=0; $i < 10; $i++) { + if(!is_service_running('syslog-ng')) + sleep(1); + } + } else { + if(is_service_running('syslog-ng')) { + log_error("Stopping syslog-ng"); + exec("/usr/local/etc/rc.d/syslog-ng.sh stop"); + + unlink_if_exists("/usr/local/etc/rc.d/syslog-ng.sh"); + } + } + + write_config(); + conf_mount_ro(); + filter_configure(); +} + +function syslogng_write_rcfile() { + $rc = array(); + $pid_file = "/var/run/syslog-ng.pid"; + $rc['file'] = 'syslog-ng.sh'; + $rc['start'] = <<<EOD +if [ -z "`ps auxw | grep "syslog-ng" | grep -v "syslog-ng.sh"`" ]; then + /usr/local/sbin/syslog-ng -p {$pid_file} +fi + +EOD; + $rc['stop'] = <<<EOD +if [ -s "{$pid_file}" ]; then + kill `cat {$pid_file}` 2>/dev/null +fi +# Just in case pid file didn't exist or process is still running... +sleep 5 +killall -9 syslog-ng 2>/dev/null + +EOD; + $rc['restart'] = <<<EOD +if [ -z "`ps auxw | grep "syslog-ng" | grep -v "syslog-ng.sh"`" ]; then + /usr/local/sbin/syslog-ng -p {$pid_file} +elif [ -s "{$pid_file}" ]; then + kill -s HUP `cat {$pid_file}` 2>/dev/null +else + killall -9 syslog-ng 2>/dev/null + /usr/local/sbin/syslog-ng -p {$pid_file} +fi + +EOD; + conf_mount_rw(); + write_rcfile($rc); +} +?>
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