<?php
/* $Id$ */
/*
	services_snmp.php
	part of m0n0wall (http://m0n0.ch/wall)

	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
	All rights reserved.

	part of pfSense
	Copyright (C) 2013-2015 Electric Sheep Fencing, LP
	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.
*/
/*
	pfSense_MODULE: snmp
*/

##|+PRIV
##|*IDENT=page-services-snmp
##|*NAME=Services: SNMP page
##|*DESCR=Allow access to the 'Services: SNMP' page.
##|*MATCH=services_snmp.php*
##|-PRIV

require("guiconfig.inc");
require_once("functions.inc");

if (!is_array($config['snmpd'])) {
	$config['snmpd'] = array();
	$config['snmpd']['rocommunity'] = "public";
	$config['snmpd']['pollport'] = "161";
}

if (!is_array($config['snmpd']['modules'])) {
	$config['snmpd']['modules'] = array();
	$config['snmpd']['modules']['mibii'] = true;
	$config['snmpd']['modules']['netgraph'] = true;
	$config['snmpd']['modules']['pf'] = true;
	$config['snmpd']['modules']['hostres'] = true;
	$config['snmpd']['modules']['bridge'] = true;
	$config['snmpd']['modules']['ucd'] = true;
	$config['snmpd']['modules']['regex'] = true;
}

$pconfig['enable'] = isset($config['snmpd']['enable']);
$pconfig['pollport'] = $config['snmpd']['pollport'];
$pconfig['syslocation'] = $config['snmpd']['syslocation'];
$pconfig['syscontact'] = $config['snmpd']['syscontact'];
$pconfig['rocommunity'] = $config['snmpd']['rocommunity'];
/* disabled until some docs show up on what this does.
$pconfig['rwenable'] = isset($config['snmpd']['rwenable']);
$pconfig['rwcommunity'] = $config['snmpd']['rwcommunity'];
*/
$pconfig['trapenable'] = isset($config['snmpd']['trapenable']);
$pconfig['trapserver'] = $config['snmpd']['trapserver'];
$pconfig['trapserverport'] = $config['snmpd']['trapserverport'];
$pconfig['trapstring'] = $config['snmpd']['trapstring'];

$pconfig['mibii'] = isset($config['snmpd']['modules']['mibii']);
$pconfig['netgraph'] = isset($config['snmpd']['modules']['netgraph']);
$pconfig['pf'] = isset($config['snmpd']['modules']['pf']);
$pconfig['hostres'] = isset($config['snmpd']['modules']['hostres']);
$pconfig['bridge'] = isset($config['snmpd']['modules']['bridge']);
$pconfig['ucd'] = isset($config['snmpd']['modules']['ucd']);
$pconfig['regex'] = isset($config['snmpd']['modules']['regex']);
$pconfig['bindip'] = $config['snmpd']['bindip'];

if ($_POST) {

	unset($input_errors);
	$pconfig = $_POST;

	/* input validation */
	if ($_POST['enable']) {
		if (strstr($_POST['syslocation'], "#")) {
			$input_errors[] = gettext("Invalid character '#' in system location");
		}
		if (strstr($_POST['syscontact'], "#")) {
			$input_errors[] = gettext("Invalid character '#' in system contact");
		}
		if (strstr($_POST['rocommunity'], "#")) {
			$input_errors[] = gettext("Invalid character '#' in read community string");
		}

		$reqdfields = explode(" ", "rocommunity");
		$reqdfieldsn = array(gettext("Community"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

		$reqdfields = explode(" ", "pollport");
		$reqdfieldsn = array(gettext("Polling Port"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);


	}

	if ($_POST['trapenable']) {
		if (strstr($_POST['trapstring'], "#")) {
			$input_errors[] = gettext("Invalid character '#' in SNMP trap string");
		}

		$reqdfields = explode(" ", "trapserver");
		$reqdfieldsn = array(gettext("Trap server"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

		$reqdfields = explode(" ", "trapserverport");
		$reqdfieldsn = array(gettext("Trap server port"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

		$reqdfields = explode(" ", "trapstring");
		$reqdfieldsn = array(gettext("Trap string"));
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
	}

/* disabled until some docs show up on what this does.
	if ($_POST['rwenable']) {
		$reqdfields = explode(" ", "rwcommunity");
		$reqdfieldsn = explode(",", "Write community string");
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
	}
*/


	if (!$input_errors) {
		$config['snmpd']['enable'] = $_POST['enable'] ? true : false;
		$config['snmpd']['pollport'] = $_POST['pollport'];
		$config['snmpd']['syslocation'] = $_POST['syslocation'];
		$config['snmpd']['syscontact'] = $_POST['syscontact'];
		$config['snmpd']['rocommunity'] = $_POST['rocommunity'];
		/* disabled until some docs show up on what this does.
		$config['snmpd']['rwenable'] = $_POST['rwenable'] ? true : false;
		$config['snmpd']['rwcommunity'] = $_POST['rwcommunity'];
		*/
		$config['snmpd']['trapenable'] = $_POST['trapenable'] ? true : false;
		$config['snmpd']['trapserver'] = $_POST['trapserver'];
		$config['snmpd']['trapserverport'] = $_POST['trapserverport'];
		$config['snmpd']['trapstring'] = $_POST['trapstring'];

		$config['snmpd']['modules']['mibii'] = $_POST['mibii'] ? true : false;
		$config['snmpd']['modules']['netgraph'] = $_POST['netgraph'] ? true : false;
		$config['snmpd']['modules']['pf'] = $_POST['pf'] ? true : false;
		$config['snmpd']['modules']['hostres'] = $_POST['hostres'] ? true : false;
		$config['snmpd']['modules']['bridge'] = $_POST['bridge'] ? true : false;
		$config['snmpd']['modules']['ucd'] = $_POST['ucd'] ? true : false;
		$config['snmpd']['modules']['regex'] = $_POST['regex'] ? true : false;
		$config['snmpd']['bindip'] = $_POST['bindip'];

		write_config();

		$retval = 0;
		$retval = services_snmpd_configure();
		$savemsg = get_std_save_message($retval);
	}
}

function build_iplist() {
	$listenips = get_possible_listen_ips();
	$iplist = array();
	$iplist[''] = 'All';

	foreach ($listenips as $lip => $ldescr) {
		$iplist[$lip] = $ldescr;
	}
	unset($listenips);

	return($iplist);
}

$closehead = false;
$pgtitle = array(gettext("Services"), gettext("SNMP"));
$shortcut_section = "snmp";

include("head.inc");

if ($input_errors)
	print_input_errors($input_errors);

if ($savemsg)
	print_info_box($savemsg);

require_once('classes/Form.class.php');

$form = new Form();

$section = new Form_Section('SNMP Daemon');

$section->addInput(new Form_Checkbox(
	'enable',
	'Enable',
	'Enable the SNMP Daemon and its controls',
	$pconfig['enable']
));

$form->add($section);

$section = new Form_Section('SNMP Daemon settings');

$section->addInput(new Form_Input(
	'pollport',
	'Polling Port',
	'text',
	($pconfig['pollport'] ? $pconfig['pollport']:'161')
))->setHelp('Enter the port to accept polling events on (default 161)');

$section->addInput(new Form_Input(
	'syslocation',
	'System Location',
	'text',
	$pconfig['syslocation']
));

$section->addInput(new Form_Input(
	'syscontact',
	'System Contact',
	'text',
	$pconfig['syscontact']
));

$section->addInput(new Form_Input(
	'rocommunity',
	'Read Community String',
	'text',
	$pconfig['rocommunity']
))->setHelp('The community string is like a password, restricting access to querying SNMP to hosts knowing the community string. Use a strong value here to protect from unauthorized information disclosure.');

$form->add($section);

$section = new Form_Section('SNMP Traps Enable');

$section->addInput(new Form_Checkbox(
	'trapenable',
	'Enable',
	'Enable the SNMP Trap and its controls',
	$pconfig['trapenable']
))->toggles('.toggle-traps');

$form->add($section);

$section = new Form_Section('SNMP Trap settings');

if($pconfig['trapenable'])
	$section->addClass('toggle-traps', 'in');
else
	$section->addClass('toggle-traps', 'collapse');

$section->addInput(new Form_Input(
	'trapserver',
	'Trap server',
	'text',
	$pconfig['trapserver']
))->setHelp('Enter the trap server name');

$section->addInput(new Form_Input(
	'trapserverport',
	'Trap Server Port',
	'text',
	($pconfig['trapserverport'] ? $pconfig['trapserverport']:'162')
))->setHelp('Enter the port to send the traps to (default 162)');

$section->addInput(new Form_Input(
	'trapstring',
	'SNMP Trap String',
	'text',
	$pconfig['trapstring']
));

$form->add($section);

$section = new Form_Section('SNMP Modules');

$group = new Form_MultiCheckboxGroup('SNMP modules');

$group->add(new Form_MultiCheckbox(
	'mibii',
	null,
	'MibII',
	$pconfig['mibii']
));

$group->add(new Form_MultiCheckbox(
	'netgraph',
	null,
	'Netgraph',
	$pconfig['netgraph']
));

$group->add(new Form_MultiCheckbox(
	'pf',
	null,
	'PF',
	$pconfig['pf']
));

$group->add(new Form_MultiCheckbox(
	'hostres',
	null,
	'Host Resources',
	$pconfig['hostres']
));

$group->add(new Form_MultiCheckbox(
	'ucd',
	null,
	'UCD',
	$pconfig['ucd']
));

$group->add(new Form_MultiCheckbox(
	'regex',
	null,
	'Regex',
	$pconfig['regex']
));

$section->add($group);
$form->add($section);

$section = new Form_Section('Interface Binding');

$section->addInput(new Form_Select(
	'bindip',
	'Bind Interface',
	$pconfig['bindip'],
	build_iplist()
));

$form->add($section);

print($form);
?>

<script type="text/javascript">
//<![CDATA[

// hostres requires mibii so we force that here
events.push(function(){
	$('#hostres').change(function(){
		if($('#hostres').is(':checked'))
			$('#mibii').attr('checked', 'checked');
	});
});
//]]>
</script>

<?php include("foot.inc");