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<?php
/* $Id$ */
/*
firewall_aliases.php
Copyright (C) 2004 Scott Ullrich
All rights reserved.
originially part of 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.
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: aliases
*/
##|+PRIV
##|*IDENT=page-firewall-aliases
##|*NAME=Firewall: Aliases page
##|*DESCR=Allow access to the 'Firewall: Aliases' page.
##|*MATCH=firewall_aliases.php*
##|-PRIV
require("guiconfig.inc");
require_once("functions.inc");
require_once("filter.inc");
require_once("shaper.inc");
if (!is_array($config['aliases']['alias']))
$config['aliases']['alias'] = array();
$a_aliases = &$config['aliases']['alias'];
$tab = ($_REQUEST['tab'] == "" ? "ip" : preg_replace("/\W/","",$_REQUEST['tab']));
if ($_POST) {
if ($_POST['apply']) {
$retval = 0;
/* reload all components that use aliases */
$retval = filter_configure();
if(stristr($retval, "error") <> true)
$savemsg = get_std_save_message($retval);
else
$savemsg = $retval;
if ($retval == 0)
clear_subsystem_dirty('aliases');
}
}
if ($_GET['act'] == "del") {
if ($a_aliases[$_GET['id']]) {
/* make sure rule is not being referenced by any nat or filter rules */
$is_alias_referenced = false;
$referenced_by = false;
$alias_name = $a_aliases[$_GET['id']]['name'];
// Firewall rules
find_alias_reference(array('filter', 'rule'), array('source', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('filter', 'rule'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('filter', 'rule'), array('source', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('filter', 'rule'), array('destination', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
// NAT Rules
find_alias_reference(array('nat', 'rule'), array('source', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'rule'), array('source', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'rule'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'rule'), array('destination', 'port'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'rule'), array('target'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'rule'), array('local-port'), $alias_name, $is_alias_referenced, $referenced_by);
// NAT 1:1 Rules
//find_alias_reference(array('nat', 'onetoone'), array('external'), $alias_name, $is_alias_referenced, $referenced_by);
//find_alias_reference(array('nat', 'onetoone'), array('source', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'onetoone'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
// NAT Outbound Rules
find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('source', 'network'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('sourceport'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('destination', 'address'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('dstport'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('nat', 'advancedoutbound', 'rule'), array('target'), $alias_name, $is_alias_referenced, $referenced_by);
// Alias in an alias
find_alias_reference(array('aliases', 'alias'), array('address'), $alias_name, $is_alias_referenced, $referenced_by);
// Load Balancer
find_alias_reference(array('load_balancer', 'lbpool'), array('port'), $alias_name, $is_alias_referenced, $referenced_by);
find_alias_reference(array('load_balancer', 'virtual_server'), array('port'), $alias_name, $is_alias_referenced, $referenced_by);
// Static routes
find_alias_reference(array('staticroutes', 'route'), array('network'), $alias_name, $is_alias_referenced, $referenced_by);
if($is_alias_referenced == true) {
$savemsg = sprintf(gettext("Cannot delete alias. Currently in use by %s"), $referenced_by);
} else {
unset($a_aliases[$_GET['id']]);
if (write_config()) {
filter_configure();
mark_subsystem_dirty('aliases');
}
header("Location: firewall_aliases.php?tab=" . $tab);
exit;
}
}
}
function find_alias_reference($section, $field, $origname, &$is_alias_referenced, &$referenced_by) {
global $config;
if(!$origname || $is_alias_referenced)
return;
$sectionref = &$config;
foreach($section as $sectionname) {
if(is_array($sectionref) && isset($sectionref[$sectionname]))
$sectionref = &$sectionref[$sectionname];
else
return;
}
if(is_array($sectionref)) {
foreach($sectionref as $itemkey => $item) {
$fieldfound = true;
$fieldref = &$sectionref[$itemkey];
foreach($field as $fieldname) {
if(is_array($fieldref) && isset($fieldref[$fieldname]))
$fieldref = &$fieldref[$fieldname];
else {
$fieldfound = false;
break;
}
}
if($fieldfound && $fieldref == $origname) {
$is_alias_referenced = true;
if(is_array($item))
$referenced_by = $item['descr'];
break;
}
}
}
}
$pgtitle = array(gettext("Firewall"),gettext("Aliases"));
$shortcut_section = "aliases";
include("head.inc");
?>
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include("fbegin.inc"); ?>
<form action="firewall_aliases.php" method="post">
<?php if ($savemsg) print_info_box($savemsg); ?>
<?php if (is_subsystem_dirty('aliases')): ?><p>
<?php print_info_box_np(gettext("The alias list has been changed.") . "<br/>" . gettext("You must apply the changes in order for them to take effect."));?>
<?php endif; ?>
<?php pfSense_handle_custom_code("/usr/local/pkg/firewall_aliases/pre_table"); ?>
<table width="100%" border="0" cellpadding="0" cellspacing="0" summary="firewall aliases">
<tr>
<td class="tabnavtbl">
<?php
$tab_array = array();
$tab_array[] = array(gettext("IP"),($tab=="ip" ? true : ($tab=="host" ? true : ($tab == "network" ? true : false))), "/firewall_aliases.php?tab=ip");
$tab_array[] = array(gettext("Ports"), ($tab=="port"? true : false), "/firewall_aliases.php?tab=port");
$tab_array[] = array(gettext("URLs"), ($tab=="url"? true : false), "/firewall_aliases.php?tab=url");
$tab_array[] = array(gettext("All"), ($tab=="all"? true : false), "/firewall_aliases.php?tab=all");
display_top_tabs($tab_array);
?>
<input type="hidden" name="tab" value="<?=htmlspecialchars($tab);?>" />
</td>
</tr>
<tr>
<td>
<div id="mainarea">
<table class="tabcont" width="100%" border="0" cellpadding="0" cellspacing="0" summary="main area">
<tr>
<td width="20%" class="listhdrr"><?=gettext("Name"); ?></td>
<td width="43%" class="listhdrr"><?=gettext("Values"); ?></td>
<td width="30%" class="listhdr"><?=gettext("Description"); ?></td>
<td width="7%" class="list">
<table border="0" cellspacing="0" cellpadding="1" summary="add">
<tr>
<td valign="middle" width="17"> </td>
<td valign="middle"><a href="firewall_aliases_edit.php?tab=<?=$tab?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0" <?=dom_title(gettext("Add a new alias"));?> alt="add" /></a></td>
</tr>
</table>
</td>
</tr>
<?php
asort($a_aliases);
foreach ($a_aliases as $i=> $alias){
unset ($show_alias);
switch ($tab){
case "all":
$show_alias= true;
break;
case "ip":
case "host":
case "network":
if (preg_match("/(host|network)/",$alias["type"]))
$show_alias= true;
break;
case "url":
if (preg_match("/(url)/i",$alias["type"]))
$show_alias= true;
break;
case "port":
if($alias["type"] == "port")
$show_alias= true;
break;
}
if ($show_alias) {
?>
<tr>
<td class="listlr" ondblclick="document.location='firewall_aliases_edit.php?id=<?=$i;?>';">
<?=htmlspecialchars($alias['name']);?>
</td>
<td class="listr" ondblclick="document.location='firewall_aliases_edit.php?id=<?=$i;?>';">
<?php
if ($alias["url"]) {
echo $alias["url"] . "<br/>";
} else {
if(is_array($alias["aliasurl"])) {
$aliasurls = implode(", ", array_slice($alias["aliasurl"], 0, 10));
echo $aliasurls;
if(count($aliasurls) > 10) {
echo "...<br/>";
}
echo "<br/>\n";
}
$tmpaddr = explode(" ", $alias['address']);
$addresses = implode(", ", array_slice($tmpaddr, 0, 10));
echo $addresses;
if(count($tmpaddr) > 10) {
echo "...";
}
}
?>
</td>
<td class="listbg" ondblclick="document.location='firewall_aliases_edit.php?id=<?=$i;?>';">
<?=htmlspecialchars($alias['descr']);?>
</td>
<td valign="middle" class="list nowrap">
<table border="0" cellspacing="0" cellpadding="1" summary="icons">
<tr>
<td valign="middle"><a href="firewall_aliases_edit.php?id=<?=$i;?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" height="17" border="0" <?=dom_title(gettext("Edit alias")." {$alias['name']}");?> alt="edit" /></a></td>
<td><a href="firewall_aliases.php?act=del&tab=<?=$tab;?>&id=<?=$i;?>" onclick="return confirm('<?=gettext("Do you really want to delete this alias? All elements that still use it will become invalid (e.g. filter rules)!");?>')"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" border="0" <?=dom_title(gettext("Delete alias")." {$alias['name']}");?> alt="delete" /></a></td>
</tr>
</table>
</td>
</tr>
<?php
} // if ($show_alias)
} // foreach
?>
<tr>
<td colspan="3"> </td>
<td valign="middle" class="list nowrap">
<table border="0" cellspacing="0" cellpadding="1" summary="edit">
<tbody>
<tr>
<td valign="middle">
<a href="firewall_aliases_edit.php?tab=<?=$tab?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0" <?=dom_title(gettext("Add a new alias")); ?> alt="add" /></a>
</td>
<td valign="middle">
<a href="firewall_aliases_import.php"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_import_alias.gif" width="17" height="17" border="0" <?=dom_title(gettext("Bulk import aliases from list"));?> alt="import" /></a>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td class="tabcont" colspan="3">
<p><span class="vexpl"><span class="red"><strong><?=gettext("Note:"); ?><br/></strong></span></span></p><div style="overflow:hidden; text-align:justify;"><p><span class="vexpl"><?=gettext("Aliases act as placeholders for real hosts, networks or ports. They can be used to minimize the number of changes that have to be made if a host, network or port changes. You can enter the name of an alias instead of the host, network or port in all fields that have a red background. The alias will be resolved according to the list above. If an alias cannot be resolved (e.g. because you deleted it), the corresponding element (e.g. filter/NAT/shaper rule) will be considered invalid and skipped."); ?></span></p></div>
</td>
</tr>
</table>
</div>
</td>
</tr>
</table>
</form>
<?php include("fend.inc"); ?>
</body>
</html>
|
