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<?php
/*
 * diag_resetstate.php
 *
 * part of pfSense (https://www.pfsense.org)
 * Copyright (c) 2004-2016 Rubicon Communications, LLC (Netgate)
 * All rights reserved.
 *
 * originally based on m0n0wall (http://m0n0.ch/wall)
 * Copyright (c) 2003-2004 Manuel Kasper <mk@neon1.net>.
 * 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.
 *
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgment:
 *    "This product includes software developed by the pfSense Project
 *    for use in the pfSense® software distribution. (http://www.pfsense.org/).
 *
 * 4. The names "pfSense" and "pfSense Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    coreteam@pfsense.org.
 *
 * 5. Products derived from this software may not be called "pfSense"
 *    nor may "pfSense" appear in their names without prior written
 *    permission of the Electric Sheep Fencing, LLC.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *
 * "This product includes software developed by the pfSense Project
 * for use in the pfSense software distribution (http://www.pfsense.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 pfSense PROJECT OR
 * ITS CONTRIBUTORS 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.
 */

##|+PRIV
##|*IDENT=page-diagnostics-resetstate
##|*NAME=Diagnostics: Reset states
##|*DESCR=Allow access to the 'Diagnostics: Reset states' page.
##|*MATCH=diag_resetstate.php*
##|-PRIV

require_once("guiconfig.inc");
require_once("filter.inc");

if ($_POST) {
	$savemsg = "";

	if ($_POST['statetable']) {
		filter_flush_state_table();
		if ($savemsg) {
			$savemsg .= " ";
		}
		$savemsg .= gettext("The state table has been flushed successfully.");
	}

	if ($_POST['sourcetracking']) {
		mwexec("/sbin/pfctl -F Sources");
		if ($savemsg) {
			$savemsg .= " <br />";
		}
		$savemsg .= gettext("The source tracking table has been flushed successfully.");
	}
}

$pgtitle = array(gettext("Diagnostics"), gettext("States"), gettext("Reset States"));
include("head.inc");

if ($input_errors) {
	print_input_errors($input_errors);
}

if ($savemsg) {
	print_info_box($savemsg, 'success');
}

$statetablehelp = sprintf(gettext('Resetting the state tables will remove all entries from the corresponding tables. This means that all open connections ' .
					'will be broken and will have to be re-established. This may be necessary after making substantial changes to the ' .
					'firewall and/or NAT rules, especially if there are IP protocol mappings (e.g. for PPTP or IPv6) with open connections.%s' .
					'The firewall will normally leave the state tables intact when changing rules.%s' .
					'%sNOTE:%s Resetting the firewall state table may cause the browser session to appear hung after clicking &quot;Reset&quot;. ' .
					'Simply refresh the page to continue.'), "<br /><br />", "<br /><br />", "<strong>", "</strong>");

$sourcetablehelp = sprintf(gettext('Resetting the source tracking table will remove all source/destination associations. ' .
					'This means that the \"sticky\" source/destination association ' .
					'will be cleared for all clients.%s' .
					'This does not clear active connection states, only source tracking.'), "<br /><br />");

$tab_array = array();
$tab_array[] = array(gettext("States"), false, "diag_dump_states.php");

if (isset($config['system']['lb_use_sticky'])) {
	$tab_array[] = array(gettext("Source Tracking"), false, "diag_dump_states_sources.php");
}

$tab_array[] = array(gettext("Reset States"), true, "diag_resetstate.php");
display_top_tabs($tab_array);

$form = new Form(false);

$section = new Form_Section('State reset options');

$section->addInput(new Form_Checkbox(
	'statetable',
	'State Table',
	'Reset the firewall state table',
	true
))->setHelp($statetablehelp);

if (isset($config['system']['lb_use_sticky'])) {
	$section->addInput(new Form_Checkbox(
		'sourcetracking',
		'Source Tracking',
		'Reset firewall source tracking',
		true
	))->setHelp($sourcetablehelp);
}

$form->add($section);

$form->addGlobal(new Form_Button(
	'Submit',
	'Reset',
	null,
	'fa-trash'
))->addClass('btn-warning');

print $form;

$nonechecked = gettext("Please select at least one reset option");
$cfmmsg = gettext("Do you really want to reset the selected states?");
?>

<script type="text/javascript">
//<![CDATA[
	events.push(function(){

		$('form').submit(function(event){
			if ( !($('#statetable').prop("checked") == true) && !($('#sourcetracking').prop("checked") == true)) {
				alert("<?=$nonechecked?>");
				event.preventDefault();
			} else if (!confirm("<?=$cfmmsg?>")) {
				event.preventDefault();
			}
		});
	});
//]]>
</script>

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