pfSense

<?php

/****h* pfSense/service-utils

 * NAME

 *   service-utils.inc - Service facility

 * DESCRIPTION

 *   This file contains various functions used by the pfSense service facility.

 * HISTORY

 *   $Id$

 ******

 *

 * Copyright (C) 2005-2006 Colin Smith (ethethlay@gmail.com)

 * 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)

 * RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 */

/*

	pfSense_BUILDER_BINARIES:	/bin/pgrep /bin/sh /usr/bin/killall

	pfSense_MODULE:	utils

*/

require_once("globals.inc");

require_once("captiveportal.inc");

require_once("openvpn.inc");

require_once("ipsec.inc");

require_once("vpn.inc");

require_once("vslb.inc");

require_once("gwlb.inc");

define("RCFILEPREFIX", "/usr/local/etc/rc.d/");

function write_rcfile($params) {

	global $g;

	$rcfile_fullname = RCFILEPREFIX . $params['file'];

	if (!file_exists($rcfile_fullname) && !touch($rcfile_fullname))

		return false;

	if (!is_writable($rcfile_fullname) || empty($params['start']))

		return false;

	$towrite = "#!/bin/sh\n";

	$towrite .= "# This file was automatically generated\n# by the {$g['product_name']} service handler.\n\n";

	/* write our rc functions */

	$towrite .= "rc_start() {\n";

	$towrite .= "\t{$params['start']}\n";

	$towrite .= "}\n\n";

	if(!empty($params['stop'])) {

		$tokill =& $params['stop'];

	} else if(!empty($params['executable'])) {

		/* just nuke the executable */

		$tokill = "/usr/bin/killall {$params['executable']}";

	} else {

		/* make an educated guess (bad) */

		$tokill = array_pop(explode('/', array_shift(explode(' ', $params['start']))));

	}

	$towrite .= "rc_stop() {\n";

	$towrite .= "\t{$tokill}\n";

	$towrite .= "}\n\n";

	/* begin rcfile logic */

	$towrite .= "case \$1 in\n\tstart)\n\t\trc_start\n\t\t;;\n\tstop)\n\t\trc_stop\n\t\t;;\n\trestart)\n\t\trc_stop\n\t\trc_start\n\t\t;;\nesac\n\n";

	file_put_contents($rcfile_fullname, $towrite);

	@chmod("{$rcfile_fullname}", 0755);

	return;

}

function start_service($name) {

	global $config;

	if (empty($name))

		return;

	/* make sure service is stopped before starting */

	stop_service($name);

	sleep(2);

	$rcfile_fullname = RCFILEPREFIX . $name . '.sh';

	if(file_exists($rcfile_fullname)) {

		mwexec_bg("/bin/sh {$rcfile_fullname} start");

		return;

	}

	if($config['installedpackages']['service']) {

		foreach($config['installedpackages']['service'] as $service) {

			if(strtolower($service['name']) == strtolower($name)) {

				if($service['rcfile']) {

					$prefix = RCFILEPREFIX;

					if (!empty($service['prefix'])) {

						$prefix =& $service['prefix'];

					}

					if(file_exists("{$prefix}{$service['rcfile']}")) {

						mwexec_bg("{$prefix}{$service['rcfile']} start");

					}

				}

				if (!empty($service['startcmd']))

					eval($service['startcmd']);

				break;

			}

		}

	}

}

function stop_service($name) {

	global $config;

	if (empty($name))

		return;

	if ($config['installedpackages']['service']) {

		foreach($config['installedpackages']['service'] as $service) {

			if(strtolower($service['name']) == strtolower($name)) {

				if($service['rcfile']) {

					$prefix = RCFILEPREFIX;

					if(!empty($service['prefix'])) {

						$prefix =& $service['prefix'];

					}

					if(file_exists("{$prefix}{$service['rcfile']}")) {

						mwexec("{$prefix}{$service['rcfile']} stop");

					}

					return;

				}

				if (!empty($service['stopcmd']))

					eval($service['stopcmd']);

				if(!($service['rcfile'] or $service['stopcmd'])) {

					if(is_process_running("{$service['executable']}"))

						mwexec("/usr/bin/killall {$service['executable']}");

					return;

				}

				break;

			}

		}

	}

	/* finally if we get here lets simply kill the service name */

	if(is_process_running("{$name}"))

		mwexec("/usr/bin/killall {$name}");

}

function restart_service($name) {

	global $config;

	if (empty($name))

		return;

	stop_service($name);

	start_service($name);

	if($config['installedpackages']['service']) {

		foreach($config['installedpackages']['service'] as $service) {

			if(strtolower($service['name']) == strtolower($name)) {

				if($service['restartcmd']) {

					eval($service['restartcmd']);

				}

				break;

			}

		}

	}

}

function is_pid_running($pidfile) {

	if (!file_exists($pidfile))

		return false;

	return (isvalidpid($pidfile));

}

function is_dhcp_running($interface) {

	$status = find_dhclient_process($interface);

	if($status <> "")

		return true;

	return false;

}

function restart_service_if_running($service) {

	global $config;

	if(is_service_running($service))

		restart_service($service);

	return;

}

function is_service_enabled($service_name) {

	global $config;

	if ($service_name == "")

		return false;

	if (isset($config['installedpackages'][$service_name]['config'][0]['enable']) &&

		((empty($config['installedpackages'][$service_name]['config'][0]['enable'])) ||

		 ($config['installedpackages'][$service_name]['config'][0]['enable'] === 'off')))

		return false;

	return true;

}

function is_service_running($service, $ps = "") {

	global $config;

	if(is_array($config['installedpackages']['service'])) {

		foreach($config['installedpackages']['service'] as $aservice) {

			if(strtolower($service) == strtolower($aservice['name'])) {

				if ($aservice['custom_php_service_status_command'] <> "") {

					eval("\$rc={$aservice['custom_php_service_status_command']};");

					return $rc;

				}

				if(empty($aservice['executable']))

					return false;

				if (is_process_running($aservice['executable']))

					return true;

				return false;

			}

		}

	}

	if (is_process_running($service))

		return true;

	return false;

}

function get_services() {

	global $config;

	if (is_array($config['installedpackages']['service']))

		$services = $config['installedpackages']['service'];

	else

		$services = array();

	/*    Add services that are in the base.

	 *

	 */

	if(is_radvd_enabled()) {

		$pconfig = array();

		$pconfig['name'] = "radvd";

		$pconfig['description'] = gettext("Router Advertisement Daemon");

		$services[] = $pconfig;

	}

	if(isset($config['dnsmasq']['enable'])) {

		$pconfig = array();

		$pconfig['name'] = "dnsmasq";

		$pconfig['description'] = gettext("DNS Forwarder");

		$services[] = $pconfig;

	}

	$pconfig = array();

	$pconfig['name'] = "ntpd";

	$pconfig['description'] = gettext("NTP clock sync");

	$services[] = $pconfig;

	if (is_array($config['captiveportal'])) {

		foreach ($config['captiveportal'] as $zone => $setting) {

			if (isset($setting['enable'])) {

				$pconfig = array();

				$pconfig['name'] = "captiveportal";

				$pconfig['zone'] = $zone;

				$pconfig['description'] = gettext("Captive Portal") . ": ".htmlspecialchars($setting['zone']);

				$services[] = $pconfig;

			}

		}

	}

	$iflist = array();

	$ifdescrs = get_configured_interface_list();

	foreach ($ifdescrs as $if) {

		$oc = $config['interfaces'][$if];

		if ($oc['if'] && (!link_interface_to_bridge($if)))

			$iflist[$if] = $if;

	}

	if(isset($config['dhcrelay']['enable'])) {

		$pconfig = array();

		$pconfig['name'] = "dhcrelay";

		$pconfig['description'] = gettext("DHCP Relay");

		$services[] = $pconfig;

	}

	if(isset($config['dhcrelay6']['enable'])) {

		$pconfig = array();

		$pconfig['name'] = "dhcrelay6";

		$pconfig['description'] = gettext("DHCPv6 Relay");

		$services[] = $pconfig;

	}

	if(is_dhcp_server_enabled()) {

		$pconfig = array();

		$pconfig['name'] = "dhcpd";

		$pconfig['description'] = gettext("DHCP Service");

		$services[] = $pconfig;

	}

	$gateways_arr = return_gateways_array();

	if (is_array($gateways_arr)) {

		$pconfig = array();

		$pconfig['name'] = "apinger";

		$pconfig['description'] = gettext("Gateway Monitoring Daemon");

		$services[] = $pconfig;

	}

	if(isset($config['snmpd']['enable'])) {

		$pconfig = array();

		$pconfig['name'] = "bsnmpd";

		$pconfig['description'] = gettext("SNMP Service");

		$services[] = $pconfig;

	}

	if (is_array($config['igmpproxy']['igmpentry']) && (count($config['igmpproxy']['igmpentry']) > 0)) {

		$pconfig = array();

		$pconfig['name'] = "igmpproxy";

		$pconfig['description'] = gettext("IGMP proxy");

		$services[] = $pconfig;

	}

	if (isset($config['installedpackages']['miniupnpd']) && $config['installedpackages']['miniupnpd']['config'][0]['enable']) {

		$pconfig = array();

		$pconfig['name'] = "miniupnpd";

		$pconfig['description'] = gettext("UPnP Service");

		$services[] = $pconfig;

	}

	if (isset($config['installedpackages']['routed']) && $config['installedpackages']['routed']['config'][0]['enable']) {

		$pconfig = array();

		$pconfig['name'] = "routed";

		$pconfig['description'] = gettext("RIP Daemon");

		$services[] = $pconfig;

	}

	if (isset($config['ipsec']['enable'])) {

		$pconfig = array();

		$pconfig['name'] = "racoon";

		$pconfig['description'] = gettext("IPsec VPN");

		$services[] = $pconfig;

	}

	foreach (array('server', 'client') as $mode) {

		if (is_array($config['openvpn']["openvpn-{$mode}"])) {

			foreach ($config['openvpn']["openvpn-{$mode}"] as $id => $setting) {

				if (!isset($setting['disable'])) {

					$pconfig = array();

					$pconfig['name'] = "openvpn";

					$pconfig['mode'] = $mode;

					$pconfig['id'] = $id;

					$pconfig['vpnid'] = $setting['vpnid'];

					$pconfig['description'] = gettext("OpenVPN") . " ".$mode.": ".htmlspecialchars($setting['description']);

					$services[] = $pconfig;

				}

			}

		}

	}

	if (count($config['load_balancer']['virtual_server']) && count($config['load_balancer']['lbpool'])) {

		$pconfig = array();

		$pconfig['name'] = "relayd";

		$pconfig['description'] = gettext("Server load balancing daemon");

		$services[] = $pconfig;

	}

	return $services;

}

function find_service_by_name($name) {

	$services = get_services();

	foreach ($services as $service)

		if ($service["name"] == $name)

			return $service;

	return array();

}

function find_service_by_openvpn_vpnid($vpnid) {

	$services = get_services();

	foreach ($services as $service)

		if (($service["name"] == "openvpn") && isset($service["vpnid"]) && ($service["vpnid"] == $vpnid))

			return $service;

	return array();

}

function find_service_by_cp_zone($zone) {

	$services = get_services();

	foreach ($services as $service)

		if (($service["name"] == "captiveportal") && isset($service["zone"]) && ($service["zone"] == $zone))

			return $service;

	return array();

}

function service_name_compare($a, $b) {

	if (strtolower($a['name']) == strtolower($b['name']))

		return 0;

	return (strtolower($a['name']) < strtolower($b['name'])) ? -1 : 1;

}

function get_pkg_descr($package_name) {

	global $config;

	if (is_array($config['installedpackages']['package'])) {

		foreach($config['installedpackages']['package'] as $pkg) {

			if($pkg['name'] == $package_name)

				return $pkg['descr'];

		}

	}

	return gettext("Not available.");

}

function get_service_status($service) {

	global $g;

	switch ($service['name']) {

		case "openvpn":

			$running = is_pid_running("{$g['varrun_path']}/openvpn_{$service['mode']}{$service['vpnid']}.pid");

			break;

		case "captiveportal":

			$running = is_pid_running("{$g['varrun_path']}/lighty-{$service['zone']}-CaptivePortal.pid");

			if (isset($config['captiveportal'][$service['zone']]['httpslogin']))

				$running = $running && is_pid_running("{$g['varrun_path']}/lighty-{$service['zone']}-CaptivePortal-SSL.pid");

			break;

		case "vhosts-http":

			$running = is_pid_running("{$g['varrun_path']}/vhosts-http.pid");

			break;

		case "dhcrelay6":

			$running = is_pid_running("{$g['varrun_path']}/dhcrelay6.pid");

			break;

		default:

			$running = is_service_running($service['name']);

	}

	return $running;

}

function get_service_status_icon($service, $withtext = true, $smallicon = false) {

	global $g;

	$output = "";

	if(get_service_status($service)) {

		$statustext = gettext("Running");

		$output .= "<img style=\"vertical-align:middle\" title=\"" . sprintf(gettext("%s Service is"),$service["name"]) . " {$statustext}\" src=\"/themes/" . $g["theme"] . "/images/icons/";

		$output .= ($smallicon) ? "icon_pass.gif" : "icon_service_running.gif";

		$output .= "\" alt=\"status\" /> ";

		if ($withtext)

			$output .= " " . $statustext;

	} else {

		$service_enabled = is_service_enabled($service['name']);

		$statustext = ($service_enabled) ? gettext("Stopped") : gettext("Disabled");

		$output .= "<img style=\"vertical-align:middle\" title=\"" . sprintf(gettext("%s Service is"),$service["name"]) . " {$statustext}\" src=\"/themes/" . $g["theme"] . "/images/icons/";

		$output .= ($smallicon) ? "icon_block.gif" : "icon_service_stopped.gif";

		$output .= "\" alt=\"status\" /> ";

		if ($withtext)

			$output .= "&nbsp;<font color=\"white\">{$statustext}</font>";

	}

	return $output;

}

function get_service_control_links($service, $addname = false) {

	global $g;

	$output = "";

	$stitle = ($addname) ? $service['name'] . " " : "";

	if(get_service_status($service)) {

		switch ($service['name']) {

			case "openvpn":

				$output .= "<a href='status_services.php?mode=restartservice&amp;service={$service['name']}&amp;vpnmode={$service['mode']}&amp;id={$service['vpnid']}'>";

				break;

			case "captiveportal":

				$output .= "<a href='status_services.php?mode=restartservice&amp;service={$service['name']}&amp;zone={$service['zone']}'>";

				break;

			default:

				$output .= "<a href='status_services.php?mode=restartservice&amp;service={$service['name']}'>";

		}

		$output .= "<img style=\"vertical-align:middle\" title='" . sprintf(gettext("Restart %sService"),$stitle) . "' border='0' src='./themes/".$g['theme']."/images/icons/icon_service_restart.gif' alt='restart' /></a>\n";

		switch ($service['name']) {

			case "openvpn":

				$output .= "<a href='status_services.php?mode=stopservice&amp;service={$service['name']}&amp;vpnmode={$service['mode']}&amp;id={$service['vpnid']}'>";

				break;

			case "captiveportal":

				$output .= "<a href='status_services.php?mode=stopservice&amp;service={$service['name']}&amp;zone={$service['zone']}'>";

				break;

			default:

				$output .= "<a href='status_services.php?mode=stopservice&amp;service={$service['name']}'>";

		}

		$output .= "<img style=\"vertical-align:middle\" title='" . sprintf(gettext("Stop %sService"),$stitle) . "' border='0' src='./themes/".$g['theme']."/images/icons/icon_service_stop.gif' alt='stop' />";

		$output .= "</a>";

	} else {

		$service_enabled = is_service_enabled($service['name']);

		switch ($service['name']) {

			case "openvpn":

				$output .= "<a href='status_services.php?mode=startservice&amp;service={$service['name']}&amp;vpnmode={$service['mode']}&amp;id={$service['vpnid']}'>";

				break;

			case "captiveportal":

				$output .= "<a href='status_services.php?mode=startservice&amp;service={$service['name']}&amp;zone={$service['zone']}'>";

				break;

			default:

				if ($service_enabled)

					$output .= "<a href='status_services.php?mode=startservice&amp;service={$service['name']}'>";

		}

		if ($service_enabled)

			$output .= "<img style=\"vertical-align:middle\" title='" . sprintf(gettext("Start %sService"),$stitle) . "' border='0' src='./themes/".$g['theme']."/images/icons/icon_service_start.gif' alt='start' /></a>\n";

	}

	return $output;

}

function service_control_start($name, $extras) {

	global $g;

	switch($name) {

		case 'radvd':

			services_radvd_configure();

			break;

		case 'captiveportal':

			$zone = $extras['zone'];

			captiveportal_init_webgui_zonename($zone);

			break;

		case 'ntpd':

		case 'openntpd':

			system_ntp_configure();

			break;

		case 'apinger':

			setup_gateways_monitor();

			break;

		case 'bsnmpd':

			services_snmpd_configure();

			break;

		case 'dhcrelay':

			services_dhcrelay_configure();

			break;

		case 'dhcrelay6':

			services_dhcrelay6_configure();

			break;

		case 'dnsmasq':

			services_dnsmasq_configure();

			break;

		case 'dhcpd':

			services_dhcpd_configure();

			break;

		case 'igmpproxy':

			services_igmpproxy_configure();

			break;

		case 'miniupnpd':

			upnp_action('start');

			break;

		case 'racoon':

			vpn_ipsec_force_reload();

			break;

		case 'openvpn':

			$vpnmode = isset($extras['vpnmode']) ? $extras['vpnmode'] : $extras['mode'];

			if (($vpnmode == "server") || ($vpnmode == "client")) {

				$id = isset($extras['vpnid']) ? $extras['vpnid'] : $extras['id'];

				$configfile = "{$g['varetc_path']}/openvpn/{$vpnmode}{$id}.conf";

				if (file_exists($configfile))

					openvpn_restart_by_vpnid($vpnmode, $id);

			}

			break;

		case 'relayd':

			relayd_configure();

			break;

		default:

			start_service($name);

			break;

	}

	return sprintf(gettext("%s has been started."),htmlspecialchars($name));

}

function service_control_stop($name, $extras) {

	global $g;

	switch($name) {

		case 'radvd':

			killbypid("{$g['varrun_path']}/radvd.pid");

			break;

		case 'captiveportal':

			$zone = $extras['zone'];

			killbypid("{$g['varrun_path']}/lighty-{$zone}-CaptivePortal.pid");

			killbypid("{$g['varrun_path']}/lighty-{$zone}-CaptivePortal-SSL.pid");

			break;

		case 'ntpd':

			killbyname("ntpd");

			break;

		case 'openntpd':

			killbyname("openntpd");

			break;

		case 'apinger':

			killbypid("{$g['varrun_path']}/apinger.pid");

			break;

		case 'bsnmpd':

			killbypid("{$g['varrun_path']}/snmpd.pid");

			break;

		case 'choparp':

			killbyname("choparp");

			break;

		case 'dhcpd':

			killbyname("dhcpd");

			break;

		case 'dhcrelay':

			killbypid("{$g['varrun_path']}/dhcrelay.pid");

			break;

		case 'dhcrelay6':

			killbypid("{$g['varrun_path']}/dhcrelay6.pid");

			break;

		case 'dnsmasq':

			killbypid("{$g['varrun_path']}/dnsmasq.pid");

			break;

		case 'igmpproxy':

			killbyname("igmpproxy");

			break;

		case 'miniupnpd':

			upnp_action('stop');

			break;

		case 'sshd':

			killbyname("sshd");

			break;

		case 'racoon':

			exec("killall -9 racoon");

			break;

		case 'openvpn':

			$vpnmode = $extras['vpnmode'];

			if (($vpnmode == "server") or ($vpnmode == "client")) {

				$id = $extras['id'];

				$pidfile = "{$g['varrun_path']}/openvpn_{$vpnmode}{$id}.pid";

				killbypid($pidfile);

			}

			break;

		case 'relayd':

			mwexec('pkill relayd');

			break;

		default:

			stop_service($name);

			break;

	}

	return sprintf(gettext("%s has been stopped."), htmlspecialchars($name));

}

function service_control_restart($name, $extras) {

	global $g;

	switch($name) {

		case 'radvd':

			services_radvd_configure();

			break;

		case 'captiveportal':

			$zone = $extras['zone'];

			killbypid("{$g['varrun_path']}/lighty-{$zone}-CaptivePortal.pid");

			killbypid("{$g['varrun_path']}/lighty-{$zone}-CaptivePortal-SSL.pid");

			captiveportal_init_webgui_zonename($zone);

			break;

		case 'ntpd':

		case 'openntpd':

			system_ntp_configure();

			break;

		case 'apinger':

			killbypid("{$g['varrun_path']}/apinger.pid");

			setup_gateways_monitor();

			break;

		case 'bsnmpd':

			services_snmpd_configure();

			break;

		case 'dhcrelay':

			services_dhcrelay_configure();

			break;

		case 'dhcrelay6':

			services_dhcrelay6_configure();

			break;

		case 'dnsmasq':

			services_dnsmasq_configure();

			break;

		case 'dhcpd':

			services_dhcpd_configure();

			break;

		case 'igmpproxy':

			services_igmpproxy_configure();

			break;

		case 'miniupnpd':

			upnp_action('restart');

			break;

		case 'racoon':

			vpn_ipsec_force_reload();

			break;

		case 'openvpn':

			$vpnmode = $extras['vpnmode'];

			if ($vpnmode == "server" || $vpnmode == "client") {

				$id = $extras['id'];

				$configfile = "{$g['varetc_path']}/openvpn/{$vpnmode}{$id}.conf";

				if (file_exists($configfile))

					openvpn_restart_by_vpnid($vpnmode, $id);

			}

			break;

		case 'relayd':

			relayd_configure(true);

			break;

		default:

			restart_service($name);

			break;

	}

	return sprintf(gettext("%s has been restarted."),htmlspecialchars($name));

}

?>