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<?php
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/* $Id$ */
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/*
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    firewall_nat_out.php
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    Copyright (C) 2004 Scott Ullrich
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    All rights reserved.
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    originally part of m0n0wall (http://m0n0.ch/wall)
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    Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
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    All rights reserved.
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    Redistribution and use in source and binary forms, with or without
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    modification, are permitted provided that the following conditions are met:
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    1. Redistributions of source code must retain the above copyright notice,
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       this list of conditions and the following disclaimer.
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    2. Redistributions in binary form must reproduce the above copyright
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       notice, this list of conditions and the following disclaimer in the
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       documentation and/or other materials provided with the distribution.
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    THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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    AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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    AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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    OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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    POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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	pfSense_MODULE:	nat
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*/
36

    
37
##|+PRIV
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##|*IDENT=page-firewall-nat-outbound
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##|*NAME=Firewall: NAT: Outbound page
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##|*DESCR=Allow access to the 'Firewall: NAT: Outbound' page.
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##|*MATCH=firewall_nat_out.php*
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##|-PRIV
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require("guiconfig.inc");
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require_once("functions.inc");
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require_once("filter.inc");
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require_once("shaper.inc");
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49
if (!is_array($config['nat']['advancedoutbound']))
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	$config['nat']['advancedoutbound'] = array();
51

    
52
if (!is_array($config['nat']['advancedoutbound']['rule']))
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	$config['nat']['advancedoutbound']['rule'] = array();
54

    
55
$a_out = &$config['nat']['advancedoutbound']['rule'];
56

    
57
if ($_POST['apply']) {
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	write_config();
59

    
60
	$retval = 0;
61
	$retval |= filter_configure();
62

    
63
	if(stristr($retval, "error") <> true)
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	        $savemsg = get_std_save_message($retval);
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	else
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		$savemsg = $retval;
67

    
68
	if ($retval == 0) {
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		clear_subsystem_dirty('natconf');
70
		clear_subsystem_dirty('filter');
71
        }
72
}
73

    
74

    
75

    
76
if (isset($_POST['save']) && $_POST['save'] == "Save") {
77
	/* mutually exclusive settings - if user wants advanced NAT, we don't generate automatic rules */
78
	switch ($_POST['advancedoripsec']) {
79
	case "ipsecpassthru":
80
               	$config['nat']['ipsecpassthru']['enable'] = true;
81
               	unset($config['nat']['advancedoutbound']['enable']);
82
		break;
83
	case "advancedoutboundnat":
84
        	if (!isset($config['nat']['advancedoutbound']['enable'])) {
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			$config['nat']['advancedoutbound']['enable'] = true;
86
			// if there are already AON rules configured, don't generate default ones
87
			if(!empty($a_out))
88
				continue;
89
			/*
90
			 *    user has enabled advanced outbound NAT and doesn't have rules
91
			 *    lets automatically create entries
92
			 *    for all of the interfaces to make life easier on the pip-o-chap
93
			 */
94
			$ifdescrs = get_configured_interface_with_descr();
95
				
96
			foreach($ifdescrs as $if => $ifdesc) {
97
				if (interface_has_gateway($if))
98
					continue;
99
				$osipaddr = get_interface_ip($if);
100
				$ossubnet = get_interface_subnet($if);
101
				if (!is_ipaddr($osipaddr) || empty($ossubnet))
102
					continue;
103
				$osn = gen_subnet($osipaddr, $ossubnet);
104
				foreach ($ifdescrs as $if2 => $ifdesc2) {
105
					if (!interface_has_gateway($if2))
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						continue;
107

    
108
					$natent = array();
109
					$natent['source']['network'] = "{$osn}/{$ossubnet}";
110
					$natent['dstport'] = "500";
111
					$natent['descr'] = "Auto created rule for ISAKMP - {$ifdesc} to {$ifdesc2}";
112
					$natent['target'] = "";
113
					$natent['interface'] = $if2;
114
					$natent['destination']['any'] = true;
115
					$natent['staticnatport'] = true;
116
					$a_out[] = $natent;
117

    
118
					$natent = array();
119
					$natent['source']['network'] = "{$osn}/{$ossubnet}";
120
                                        $natent['dstport'] = "5060";
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                                        $natent['descr'] = "Auto created rule for SIP - {$ifdesc} to {$ifdesc2}";
122
                                        $natent['target'] = "";
123
                                        $natent['interface'] = $if2;
124
                                        $natent['destination']['any'] = true;
125
                                        $natent['staticnatport'] = true;
126
                                        $a_out[] = $natent;
127
					
128
					$natent = array();
129
                                        $natent['source']['network'] = "{$osn}/{$ossubnet}";
130
                                        $natent['sourceport'] = "";
131
                                        $natent['descr'] = "Auto created rule for {$ifdesc} to {$ifdesc2}";
132
                                        $natent['target'] = "";
133
                                        $natent['interface'] = $if2;
134
                                        $natent['destination']['any'] = true;
135
                                        $natent['natport'] = "";
136
                                        $a_out[] = $natent;
137
					
138
					/* PPTP subnet */
139
					if($config['pptpd']['mode'] == "server") {
140
						if (is_ipaddr($config['pptpd']['localip'])) {
141
							if($config['pptpd']['pptp_subnet'] <> "")
142
								$ossubnet = $config['pptpd']['pptp_subnet'];
143
							else
144
								$ossubnet = "32";
145
							$osn = gen_subnet($config['pptpd']['localip'], $osn);
146
							$natent = array();
147
							$natent['source']['network'] = "{$osn}/{$ossubnet}";
148
							$natent['sourceport'] = "";
149
							$natent['descr'] = "Auto created rule for PPTP server";
150
							$natent['target'] = "";
151
							$natent['interface'] = $if2;
152
							$natent['destination']['any'] = true;
153
							$natent['natport'] = "";
154
							$a_out[] = $natent;
155
						}
156
					}
157
					/* PPPoE subnet */
158
					if($config['pppoe']['mode'] == "server") {
159
						if (is_ipaddr($config['pppoe']['localip'])) {
160
							if($config['pppoe']['pppoe_subnet'] <> "")
161
								$ossubnet = $config['pppoe']['pptp_subnet'];
162
							else
163
								$ossubnet = "32";
164
							$osn = gen_subnet($config['pppoe']['localip'], $osn);
165
							$natent = array();
166
							$natent['source']['network'] = "{$osn}/{$ossubnet}";
167
							$natent['sourceport'] = "";
168
							$natent['descr'] = "Auto created rule for PPPoE server";
169
							$natent['target'] = "";
170
							$natent['interface'] = $if2;
171
							$natent['destination']['any'] = true;
172
							$natent['natport'] = "";
173
							$a_out[] = $natent;
174
						}
175
					}
176
					/* L2TP subnet */
177
					if($config['l2tp']['mode'] == "server") {
178
						if (is_ipaddr($config['l2tp']['localip'])) {
179
							if($config['l2tp']['l2tp_subnet'] <> "")
180
								$ossubnet = $config['l2tp']['pptp_subnet'];
181
							else
182
								$ossubnet = "32";
183
							$osn = gen_subnet($config['l2tp']['localip'], $osn);
184
							$natent = array();
185
							$natent['source']['network'] = "{$osn}/{$ossubnet}";
186
							$natent['sourceport'] = "";
187
							$natent['descr'] = "Auto created rule for L2TP server";
188
							$natent['target'] = "";
189
							$natent['interface'] = $if2;
190
							$natent['destination']['any'] = true;
191
							$natent['natport'] = "";
192
							$a_out[] = $natent;
193
						}
194
					}
195
					/* add openvpn interfaces */
196
					if($config['openvpn']['openvpn-server']) {
197
						foreach ($config['openvpn']['openvpn-server'] as $ovpnsrv) {
198
							$natent = array();
199
							$natent['source']['network'] = $ovpnsrv['tunnel_network'];
200
							$natent['sourceport'] = "";
201
							$natent['descr'] = "Auto created rule for OpenVPN server";
202
							$natent['target'] = "";
203
							$natent['interface'] = $if2;
204
							$natent['destination']['any'] = true;
205
							$natent['natport'] = "";
206
							$a_out[] = $natent;
207
						}
208
					}
209
				}	
210
			}
211

    
212
			$savemsg = "Default rules for each interface have been created.";
213
		}
214
		break;
215
	}
216
        write_config();
217
	mark_subsystem_dirty('natconf');
218
        header("Location: firewall_nat_out.php");
219
        exit;
220
}
221

    
222
if (isset($_POST['del_x'])) {
223
        /* delete selected rules */
224
        if (is_array($_POST['rule']) && count($_POST['rule'])) {
225
                foreach ($_POST['rule'] as $rulei) {
226
                        unset($a_out[$rulei]);
227
                }
228
                write_config();
229
		mark_subsystem_dirty('natconf');
230
                header("Location: firewall_nat_out.php");
231
                exit;
232
        }
233

    
234
} else {
235
        /* yuck - IE won't send value attributes for image buttons, while Mozilla does - so we use .x/.y to find move button clicks instead... */
236
        unset($movebtn);
237
        foreach ($_POST as $pn => $pd) {
238
                if (preg_match("/move_(\d+)_x/", $pn, $matches)) {
239
                        $movebtn = $matches[1];
240
                        break;
241
                }
242
        }
243
        /* move selected rules before this rule */
244
        if (isset($movebtn) && is_array($_POST['rule']) && count($_POST['rule'])) {
245
                $a_out_new = array();
246

    
247
                /* copy all rules < $movebtn and not selected */
248
                for ($i = 0; $i < $movebtn; $i++) {
249
                        if (!in_array($i, $_POST['rule']))
250
                                $a_out_new[] = $a_out[$i];
251
                }
252

    
253
                /* copy all selected rules */
254
                for ($i = 0; $i < count($a_out); $i++) {
255
                        if ($i == $movebtn)
256
                                continue;
257
                        if (in_array($i, $_POST['rule']))
258
                                $a_out_new[] = $a_out[$i];
259
                }
260

    
261
                /* copy $movebtn rule */
262
                if ($movebtn < count($a_out))
263
                        $a_out_new[] = $a_out[$movebtn];
264

    
265
                /* copy all rules > $movebtn and not selected */
266
                for ($i = $movebtn+1; $i < count($a_out); $i++) {
267
                        if (!in_array($i, $_POST['rule']))
268
                                $a_out_new[] = $a_out[$i];
269
                }
270
                if (count($a_out_new) > 0)
271
			$a_out = $a_out_new;
272
		else
273
			unset($config['nat']['advancedoutbound']);
274

    
275
                write_config();
276
		mark_subsystem_dirty('natconf');
277
                header("Location: firewall_nat_out.php");
278
                exit;
279
        }
280
}
281

    
282

    
283
$pgtitle = array("Firewall","NAT","Outbound");
284
include("head.inc");
285

    
286
?>
287
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
288
<?php include("fbegin.inc"); ?>
289
<form action="firewall_nat_out.php" method="post" name="iform">
290
<script type="text/javascript" language="javascript" src="/javascript/row_toggle.js">
291
</script>
292
<?php if ($savemsg) print_info_box($savemsg); ?>
293
<?php if (is_subsystem_dirty('natconf')): ?><p>
294
<?php print_info_box_np("The NAT configuration has been changed.<br>You must apply the changes in order for them to take effect.");?><br>
295
<?php endif; ?>
296
<table width="100%" border="0" cellpadding="0" cellspacing="0">  <tr><td>
297
<?php
298
	$tab_array = array();
299
	$tab_array[] = array("Port Forward", false, "firewall_nat.php");
300
	$tab_array[] = array("1:1", false, "firewall_nat_1to1.php");
301
	$tab_array[] = array("Outbound", true, "firewall_nat_out.php");
302
	display_top_tabs($tab_array);
303
?>
304
  </td></tr>
305
  <tr>
306
    <td>
307
	<div id="mainarea">
308
              <table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0">
309
              <tr>
310
                  <td class="vtable"><p>
311
                      <input name="advancedoripsec" type="radio" id="ipsecpassthru" value="ipsecpassthru" <?php if (isset($config['nat']['ipsecpassthru']['enable'])) echo "checked";?>>
312
                      <strong><?=gettext("Automatic outbound NAT rule generation (IPsec passthrough)");?></strong></p>
313
                  </td>
314
                </tr>
315
                <tr>
316
                  <td class="vtable"><p>
317
                      <input name="advancedoripsec" type="radio" id="advancedoutbound" value="advancedoutboundnat" <?php if (isset($config['nat']['advancedoutbound']['enable'])) echo "checked";?>>
318
                      <strong><?=gettext("Manual Outbound NAT rule generation (Advanced Outbound NAT (AON))");?></strong></p></td>
319
                </tr>
320
                <tr>
321
                  <td> <input name="save" type="submit" class="formbtn" value="Save">
322
                  </td>
323
                </tr>
324
                <tr>
325
                  <td colspan="2"><p><span class="vexpl"><span class="red"><strong>Note:<br>
326
                      </strong></span>If advanced outbound NAT is enabled, no outbound NAT
327
                      rules will be automatically generated any longer. Instead, only the mappings
328
                      you specify below will be used. With advanced outbound NAT disabled,
329
                      a mapping is automatically created for each interface's subnet
330
                      (except WAN).  If you use target addresses other than the WAN interface's
331
		      IP address, then depending on the way your WAN connection is setup, you
332
	              may also need a <a href="firewall_virtual_ip.php">Virtual IP</a>.</span><br>
333
                      <br>
334
                      You may enter your own mappings below.</p>
335
                    </td>
336
                </tr>
337
              </table>
338
              <table class="tabcont" width="100%" border="0" cellpadding="0" cellspacing="0">
339
                <tr id="frheader">
340
                  <td width="3%" class="list">&nbsp;</td>
341
                  <td width="3%" class="list">&nbsp;</td>
342
                  <td width="10%" class="listhdrr">Interface</td>
343
                  <td width="15%" class="listhdrr">Source</td>
344
                  <td width="10%" class="listhdrr">Source Port</td>
345
                  <td width="15%" class="listhdrr">Destination</td>
346
                  <td width="10%" class="listhdrr">Destination Port</td>
347
                  <td width="15%" class="listhdrr">NAT Address</td>
348
                  <td width="10%" class="listhdrr">NAT Port</td>
349
		  <td width="10%" class="listhdrr">Static Port</td>
350
                  <td width="25%" class="listhdr">Description</td>
351
                  <td width="5%" class="list">
352
                    <table border="0" cellspacing="0" cellpadding="1">
353
                      <tr>
354
			<td width="17"></td>
355
                        <td><a href="firewall_nat_out_edit.php"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0" title="add new mapping"></a></td>
356
                      </tr>
357
                    </table>
358
		  </td>
359
                </tr>
360
              <?php $nnats = $i = 0; foreach ($a_out as $natent): ?>
361
                <tr valign="top" id="fr<?=$nnats;?>">
362
                  <td class="listt"><input type="checkbox" id="frc<?=$nnats;?>" name="rule[]" value="<?=$i;?>" onClick="fr_bgcolor('<?=$nnats;?>')" style="margin: 0; padding: 0; width: 15px; height: 15px;"></td>
363
                  <td class="listt" align="center"></td>
364
                  <td class="listlr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_out_edit.php?id=<?=$nnats;?>';">
365
                    <?php
366
					if (!$natent['interface'] || ($natent['interface'] == "wan"))
367
					  	echo "WAN";
368
                                        else if (!$natent['interface'] || ($natent['interface'] == "lan"))
369
                                                 echo "LAN";                                                
370
					else if ($natent['interface'] == "openvpn")
371
						echo "OpenVPN";
372
					else
373
						echo htmlspecialchars($config['interfaces'][$natent['interface']]['descr']);
374
					?>
375
                                        &nbsp;
376
                  </td>
377
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_out_edit.php?id=<?=$nnats;?>';">
378
                    <?=$natent['source']['network'];?>
379
                  </td>
380
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_out_edit.php?id=<?=$nnats;?>';">
381
                    <?php
382
                      if (!$natent['sourceport'])
383
                          echo "*";
384
                      else
385
                          echo $natent['sourceport'];
386
                    ?>
387
                  </td>
388
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_out_edit.php?id=<?=$nnats;?>';">
389
                    <?php
390
                      if (isset($natent['destination']['any']))
391
                          echo "*";
392
                      else {
393
                          if (isset($natent['destination']['not']))
394
                              echo "!&nbsp;";
395
                          echo $natent['destination']['address'];
396
                      }
397
                    ?>
398
                  </td>
399
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_out_edit.php?id=<?=$nnats;?>';">
400
                    <?php
401
                      if (!$natent['dstport'])
402
                          echo "*";
403
                      else
404
                          echo $natent['dstport'];
405
                    ?>
406
                  </td>
407
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_out_edit.php?id=<?=$nnats;?>';">
408
                    <?php
409
                      if (!$natent['target'])
410
                          echo "*";
411
                      else
412
                          echo $natent['target'];
413
                    ?>
414
                  </td>
415
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_out_edit.php?id=<?=$nnats;?>';">
416
                    <?php
417
                      if (!$natent['natport'])
418
                          echo "*";
419
                      else
420
                          echo $natent['natport'];
421
                    ?>
422
                  </td>
423
                  <td class="listr" onClick="fr_toggle(<?=$nnats;?>)" id="frd<?=$nnats;?>" ondblclick="document.location='firewall_nat_out_edit.php?id=<?=$nnats;?>';">
424
                    <?php
425
			if(isset($natent['staticnatport']))
426
			    echo "<CENTER>YES</CENTER>";
427
			else
428
			    echo "<CENTER>NO</CENTER>";
429
                    ?>		    
430
                  </td>
431
                  <td class="listbg"  onClick="fr_toggle(<?=$nnats;?>)" ondblclick="document.location='firewall_nat_out_edit.php?id=<?=$nnats;?>';">
432
                    <?=htmlspecialchars($natent['descr']);?>&nbsp;
433
                  </td>
434
                  <td class="list" valign="middle" nowrap>
435
                    <table border="0" cellspacing="0" cellpadding="1">
436
                      <tr>
437
                        <td><a href="firewall_nat_out_edit.php?id=<?=$i;?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" height="17" border="0" title="edit mapping"></a></td>
438
                      </tr>
439
                      <tr>
440
                        <td><input onmouseover="fr_insline(<?=$nnats;?>, true)" onmouseout="fr_insline(<?=$nnats;?>, false)" name="move_<?=$i;?>" src="/themes/<?= $g['theme']; ?>/images/icons/icon_left.gif" title="move selected rules before this rule" height="17" type="image" width="17" border="0"></td>
441
                        <td><a href="firewall_nat_out_edit.php?dup=<?=$i;?>"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" title="add a new nat based on this one" width="17" height="17" border="0"></a></td>
442
                      </tr>
443
                    </table>
444
              <?php $i++; $nnats++; endforeach; ?>
445
                <tr>
446
                  <td class="list" colspan="11"></td>
447
                  <td class="list" valign="middle" nowrap>
448
                    <table border="0" cellspacing="0" cellpadding="1">
449
                      <tr>
450
                        <td><?php if ($nnats == 0): ?><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_left_d.gif" width="17" height="17" title="move selected mappings to end" border="0"><?php else: ?><input name="move_<?=$i;?>" type="image" src="/themes/<?= $g['theme']; ?>/images/icons/icon_left.gif" width="17" height="17" title="move selected mappings to end" border="0"><?php endif; ?></td>
451
                        <td><a href="firewall_nat_out_edit.php"><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0" title="add new mapping"></a></td>
452
                      </tr>
453
                      <tr>
454
                        <td><?php if ($nnats == 0): ?><img src="/themes/<?= $g['theme']; ?>/images/icons/icon_x_d.gif" width="17" height="17" title="delete selected rules" border="0"><?php else: ?><input name="del" type="image" src="/themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" title="delete selected mappings" onclick="return confirm('Do you really want to delete the selected mappings?')"><?php endif; ?></td>
455
                      </tr>
456
                    </table></td>
457
                </tr>
458
              </table>
459
	    </div>
460
</td>
461
  </tr>
462
</table>
463
            </form>
464
<?php include("fend.inc"); ?>
465
</body>
466
</html>
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