summaryrefslogtreecommitdiffstats
path: root/usr/local/www/firewall_aliases.php
blob: fc6909365bfe52919eb282f9f43d4208a35ff4ac (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
<?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">&nbsp;</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']);?>&nbsp;
						</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&amp;tab=<?=$tab;?>&amp;id=<?=$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">&nbsp;</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>
OpenPOWER on IntegriCloud