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<?php 
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/* $Id$ */
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/*
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	system_gateways_edit.php
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	part of pfSense (http://pfsense.com)
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	Copyright (C) 2010 Seth Mos <seth.mos@dds.nl>.
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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:	routing
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*/
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##|+PRIV
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##|*IDENT=page-system-gateways-editgateway
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##|*NAME=System: Gateways: Edit Gateway page
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##|*DESCR=Allow access to the 'System: Gateways: Edit Gateway' page.
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##|*MATCH=system_gateways_edit.php*
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##|-PRIV
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42
require("guiconfig.inc");
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require("pkg-utils.inc");
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45
$a_gateways = return_gateways_array(true);
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$a_gateways_arr = array();
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foreach($a_gateways as $gw) {
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	$a_gateways_arr[] = $gw;
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}
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$a_gateways = $a_gateways_arr;
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52
if (!is_array($config['gateways']['gateway_item']))
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        $config['gateways']['gateway_item'] = array();
54
        
55
$a_gateway_item = &$config['gateways']['gateway_item'];
56

    
57
$id = $_GET['id'];
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if (isset($_POST['id']))
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	$id = $_POST['id'];
60

    
61
if (isset($_GET['dup'])) {
62
	$id = $_GET['dup'];
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}
64

    
65
if (isset($id) && $a_gateways[$id]) {
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	$pconfig = array();
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	$pconfig['name'] = $a_gateways[$id]['name'];
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	$pconfig['weight'] = $a_gateways[$id]['weight'];
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	$pconfig['interface'] = $a_gateways[$id]['interface'];
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	$pconfig['friendlyiface'] = $a_gateways[$id]['friendlyiface'];
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	if (isset($a_gateways[$id]['dynamic']))
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		$pconfig['dynamic'] = true;
73
	$pconfig['gateway'] = $a_gateways[$id]['gateway'];
74
	$pconfig['defaultgw'] = isset($a_gateways[$id]['defaultgw']);
75
	$pconfig['latencylow'] = $a_gateway_item[$id]['latencylow'];
76
        $pconfig['latencyhigh'] = $a_gateway_item[$id]['latencyhigh'];
77
        $pconfig['losslow'] = $a_gateway_item[$id]['losslow'];
78
        $pconfig['losshigh'] = $a_gateway_item[$id]['losshigh'];
79
        $pconfig['down'] = $a_gateway_item[$id]['down'];
80
	$pconfig['monitor'] = $a_gateways[$id]['monitor'];
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	$pconfig['descr'] = $a_gateways[$id]['descr'];
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	$pconfig['attribute'] = $a_gateways[$id]['attribute'];
83
}
84

    
85
if (isset($_GET['dup'])) {
86
	unset($id);
87
	unset($pconfig['attribute']);
88
}
89

    
90
if ($_POST) {
91

    
92
	unset($input_errors);
93

    
94
	/* input validation */
95
	$reqdfields = explode(" ", "name interface");
96
	$reqdfieldsn = array(gettext("Name"), gettext("Interface"));
97

    
98
	do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
99

    
100
	if (! isset($_POST['name'])) {
101
		$input_errors[] = "A valid gateway name must be specified.";
102
	}
103
	if (! is_validaliasname($_POST['name'])) {
104
		$input_errors[] = gettext("The gateway name must not contain invalid characters.");
105
	}
106
	/* skip system gateways which have been automatically added */
107
	if (($_POST['gateway'] && (!is_ipaddr($_POST['gateway'])) && ($_POST['attribute'] != "system")) && ($_POST['gateway'] != "dynamic")) {
108
		$input_errors[] = gettext("A valid gateway IP address must be specified.");
109
	}
110

    
111
	if ($_POST['gateway'] && (is_ipaddr($_POST['gateway'])) && !$_REQUEST['isAjax']) {
112
		if (!empty($config['interfaces'][$_POST['interface']]['ipaddr'])) {
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			if (is_ipaddr($config['interfaces'][$_POST['interface']]['ipaddr']) && (empty($_POST['gateway']) || $_POST['gateway'] == "dynamic"))
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				$input_errors[] = gettext("Dynamic gateway values cannot be specified for interfaces with a static ip configuration.");
115
		}
116
		if(is_ipaddrv6($_POST['gateway'])) {
117
			$parent_ip = get_interface_ipv6($_POST['interface']);
118
		} else {		
119
			$parent_ip = get_interface_ip($_POST['interface']);
120
		}
121
		if (is_ipaddrv4($parent_ip)) {
122
			$parent_sn = get_interface_subnet($_POST['interface']);
123
			$subnet = gen_subnet($parent_ip, $parent_sn) . "/" . $parent_sn;
124
			if(!ip_in_subnet($_POST['gateway'], $subnet) && !ip_in_interface_alias_subnet($_POST['interface'], $_POST['gateway'])) {
125
				$input_errors[] = sprintf(gettext("The gateway address %s does not lie within the chosen interface's subnet '{$subnet}'."), $_POST['gateway']);
126
			}
127
		}
128
		if (is_ipaddrv6($parent_ip)) {
129
			$parent_sn = get_interface_subnetv6($_POST['interface']);
130
			$subnet = gen_subnetv6($parent_ip, $parent_sn) . "/" . $parent_sn;
131
			if(!ip_in_subnet($_POST['gateway'], $subnet)) {
132
				$input_errors[] = sprintf(gettext("The gateway address %s does not lie within the chosen interface's subnet '{$subnet}'."), $_POST['gateway']);
133
			}
134
		}
135
	}
136
	if (($_POST['monitor'] <> "") && !is_ipaddr($_POST['monitor']) && $_POST['monitor'] != "dynamic") {
137
		$input_errors[] = gettext("A valid monitor IP address must be specified.");
138
	}
139

    
140
	if (isset($_POST['name'])) {
141
		/* check for overlaps */
142
		foreach ($a_gateways as $gateway) {
143
			if (isset($id) && ($a_gateways[$id]) && ($a_gateways[$id] === $gateway)) {
144
				if ($gateway['name'] != $_POST['name'])
145
					$input_errors[] = gettext("Changing name on a gateway is not allowed.");
146
				continue;
147
			}
148
			if($_POST['name'] <> "") {
149
				if (($gateway['name'] <> "") && ($_POST['name'] == $gateway['name']) && ($gateway['attribute'] != "system")) {
150
					$input_errors[] = sprintf(gettext('The gateway name "%s" already exists.'), $_POST['name']);
151
					break;
152
				}
153
			}
154
			if(is_ipaddr($_POST['gateway'])) {
155
				if (($gateway['gateway'] <> "") && ($_POST['gateway'] == $gateway['gateway']) && ($gateway['attribute'] != "system")) {
156
					$input_errors[] = sprintf(gettext('The gateway IP address "%s" already exists.'), $_POST['gateway']);
157
					break;
158
				}
159
			}
160
			if(is_ipaddr($_POST['monitor'])) {
161
				if (($gateway['monitor'] <> "") && ($_POST['monitor'] == $gateway['monitor']) && ($gateway['attribute'] != "system")) {
162
					$input_errors[] = sprintf(gettext('The monitor IP address "%s" is already in use. You must choose a different monitor IP.'), $_POST['monitor']);
163
					break;
164
				}
165
			}
166
		}
167
	}
168

    
169
	/* input validation */
170
        if($_POST['latencylow']) {
171
                if (! is_numeric($_POST['latencylow'])) {
172
                        $input_errors[] = gettext("The low latency watermark needs to be a numeric value.");
173
                }
174
        }
175

    
176
        if($_POST['latencyhigh']) {
177
                if (! is_numeric($_POST['latencyhigh'])) {
178
                        $input_errors[] = gettext("The high latency watermark needs to be a numeric value.");
179
                }
180
        }
181
        if($_POST['losslow']) {
182
                if (! is_numeric($_POST['losslow'])) {
183
                        $input_errors[] = gettext("The low loss watermark needs to be a numeric value.");
184
                }
185
        }
186
        if($_POST['losshigh']) {
187
                if (! is_numeric($_POST['losshigh'])) {
188
                        $input_errors[] = gettext("The high loss watermark needs to be a numeric value.");
189
                }
190
        }
191

    
192
        if(($_POST['latencylow']) && ($_POST['latencyhigh'])){
193
                if(($_POST['latencylow'] > $_POST['latencyhigh'])) {
194
                        $input_errors[] = gettext("The High latency watermark needs to be higher then the low latency watermark");
195
                }
196
        }
197

    
198
        if(($_POST['losslow']) && ($_POST['losshigh'])){
199
                if($_POST['losslow'] > $_POST['losshigh']) {
200
                        $input_errors[] = gettext("The High packet loss watermark needs to be higher then the low packet loss watermark");
201
                }
202
        }
203
	if($_POST['down']) {
204
                if (! is_numeric($_POST['down']) || $_POST['down'] < 1) {
205
                        $input_errors[] = gettext("The low latency watermark needs to be a numeric value.");
206
                }
207
        }
208

    
209
	if (!$input_errors) {
210
		if (!($_POST['weight'] > 1 || $_POST['latencylow'] || $_POST['latencyhigh'] ||
211
		    $_POST['losslow'] || $_POST['losshigh'] || $_POST['down'] ||
212
		    $_POST['defaultgw'] || is_ipaddr($_POST['monitor']) || is_ipaddr($_POST['gateway']))) {
213
		/* Delete from config if gw is dynamic and user is not saving any additional gateway data that system doesn't know */
214
			if (isset($id) && $a_gateway_item[$id])
215
				unset($a_gateway_item[$id]);
216
			write_config();
217
			header("Location: system_gateways.php");
218
			exit;
219
		}
220

    
221

    
222
		$reloadif = "";
223
		$gateway = array();
224

    
225
		if (empty($_POST['interface']))
226
			$gateway['interface'] = $pconfig['friendlyiface'];
227
		else
228
			$gateway['interface'] = $_POST['interface'];
229
		if (is_ipaddr($_POST['gateway']))
230
			$gateway['gateway'] = $_POST['gateway'];
231
		else
232
			$gateway['gateway'] = "dynamic";
233
		$gateway['name'] = $_POST['name'];
234
		$gateway['weight'] = $_POST['weight'];
235
		$gateway['descr'] = $_POST['descr'];
236
		if (is_ipaddr($_POST['monitor']))
237
			$gateway['monitor'] = $_POST['monitor'];
238

    
239
		if ($_POST['defaultgw'] == "yes" || $_POST['defaultgw'] == "on") {
240
			$i = 0;
241
			/* remove the default gateway bits for all gateways with the same address family */
242
			foreach($a_gateway_item as $gw) {
243
				if(is_ipaddrv4($gateway['gateway']) && is_ipaddrv4($gw['gateway'])) {
244
					unset($config['gateways']['gateway_item'][$i]['defaultgw']);
245
					if ($gw['interface'] != $_POST['interface'] && $gw['defaultgw'])
246
						$reloadif = $gw['interface'];
247
				}
248
				if(is_ipaddrv6($gateway['gateway']) && is_ipaddrv6($gw['gateway'])) {
249
					unset($config['gateways']['gateway_item'][$i]['defaultgw']);
250
					if ($gw['interface'] != $_POST['interface'] && $gw['defaultgw'])
251
						$reloadif = $gw['interface'];
252
				}
253
				$i++;
254
			}
255
			$gateway['defaultgw'] = true;
256
		}
257

    
258
		if ($_POST['latencylow'])
259
			$gateway['latencylow'] = $_POST['latencylow'];
260
		if ($_POST['latencyhigh'])
261
               		$gateway['latencyhigh'] = $_POST['latencyhigh'];
262
		if ($_POST['losslow'])
263
              			$gateway['losslow'] = $_POST['losslow'];
264
		if ($_POST['losshigh'])
265
               		$gateway['losshigh'] = $_POST['losshigh'];
266
		if ($_POST['down'])
267
               		$gateway['down'] = $_POST['down'];
268

    
269
		/* when saving the manual gateway we use the attribute which has the corresponding id */
270
		if (isset($id) && $a_gateway_item[$id])
271
			$a_gateway_item[$id] = $gateway;
272
		else
273
			$a_gateway_item[] = $gateway;
274

    
275
		mark_subsystem_dirty('staticroutes');
276
	
277
		write_config();
278

    
279
		if($_REQUEST['isAjax']) {
280
			echo $_POST['name'];
281
			exit;
282
		} else if (!empty($reloadif))
283
			send_event("interface reconfigure {$reloadif}");
284
		
285
		header("Location: system_gateways.php");
286
		exit;
287
	} else {
288
		$pconfig = $_POST;
289
		if (empty($_POST['friendlyiface']))
290
			$pconfig['friendlyiface'] = $_POST['interface'];
291
	}
292
}
293

    
294

    
295
$pgtitle = array(gettext("System"),gettext("Gateways"),gettext("Edit gateway"));
296
$statusurl = "status_gateways.php";
297

    
298
include("head.inc");
299

    
300
?>
301

    
302
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
303
<?php include("fbegin.inc"); ?>
304
<script language="JavaScript">
305
function show_advanced_gateway() {
306
        document.getElementById("showadvgatewaybox").innerHTML='';
307
        aodiv = document.getElementById('showgatewayadv');
308
        aodiv.style.display = "block";
309
}
310
</script>
311
<?php if ($input_errors) print_input_errors($input_errors); ?>
312
            <form action="system_gateways_edit.php" method="post" name="iform" id="iform">
313
	<?php
314

    
315
	/* If this is a system gateway we need this var */
316
	if(($pconfig['attribute'] == "system") || is_numeric($pconfig['attribute'])) {
317
		echo "<input type='hidden' name='attribute' id='attribute' value='{$pconfig['attribute']}' >\n";
318
	}
319
	echo "<input type='hidden' name='friendlyiface' id='friendlyiface' value='{$pconfig['friendlyiface']}' >\n";
320
	?>
321
              <table width="100%" border="0" cellpadding="6" cellspacing="0">
322
				<tr>
323
					<td colspan="2" valign="top" class="listtopic"><?=gettext("Edit gateway"); ?></td>
324
				</tr>	
325
                <tr> 
326
                  <td width="22%" valign="top" class="vncellreq"><?=gettext("Interface"); ?></td>
327
                  <td width="78%" class="vtable">
328
		 	<select name='interface' class='formselect' >
329

    
330
		<?php 
331
                      	$interfaces = get_configured_interface_with_descr(false, true);
332
			foreach ($interfaces as $iface => $ifacename) {
333
				echo "<option value=\"{$iface}\"";
334
				if ($iface == $pconfig['friendlyiface'])
335
					echo " selected";
336
				echo ">" . htmlspecialchars($ifacename) . "</option>";
337
			}
338
			if (is_package_installed("openbgpd") == 1) {
339
				echo "<option value=\"bgpd\"";
340
				if ($pconfig['interface'] == "bgpd") 
341
					echo " selected";
342
				echo ">" . gettext("Use BGPD") . "</option>";
343
			}
344
 		  ?>
345
                    </select> <br>
346
                    <span class="vexpl"><?=gettext("Choose which interface this gateway applies to."); ?></span></td>
347
                </tr>
348
                <tr>
349
                  <td width="22%" valign="top" class="vncellreq"><?=gettext("Name"); ?></td>
350
                  <td width="78%" class="vtable"> 
351
                    <input name="name" type="text" class="formfld unknown" id="name" size="20" value="<?=htmlspecialchars($pconfig['name']);?>"> 
352
                    <br> <span class="vexpl"><?=gettext("Gateway name"); ?></span></td>
353
                </tr>
354
		<tr>
355
                  <td width="22%" valign="top" class="vncellreq"><?=gettext("Gateway"); ?></td>
356
                  <td width="78%" class="vtable"> 
357
                    <input name="gateway" type="text" class="formfld host" id="gateway" size="28" value="<?php if ($pconfig['dynamic']) echo "dynamic"; else echo $pconfig['gateway']; ?>">
358
                    <br> <span class="vexpl"><?=gettext("Gateway IP address"); ?></span></td>
359
                </tr>
360
		<tr>
361
		  <td width="22%" valign="top" class="vncell"><?=gettext("Default Gateway"); ?></td>
362
		  <td width="78%" class="vtable">
363
			<input name="defaultgw" type="checkbox" id="defaultgw" value="yes" <?php if ($pconfig['defaultgw'] == true) echo "checked"; ?> />
364
			<strong><?=gettext("Default Gateway"); ?></strong><br />
365
			<?=gettext("This will select the above gateway as the default gateway"); ?>
366
		  </td>
367
		</tr>
368
		<tr>
369
		  <td width="22%" valign="top" class="vncell"><?=gettext("Monitor IP"); ?></td>
370
		  <td width="78%" class="vtable">
371
			<?php
372
				if ($pconfig['gateway'] == $pconfig['monitor'])
373
					$monitor = "";
374
				else
375
					$monitor = htmlspecialchars($pconfig['monitor']);
376
			?>
377
			<input name="monitor" type="text" id="monitor" value="<?php echo $monitor; ?>" size="28" />
378
			<strong><?=gettext("Alternative monitor IP"); ?></strong> <br />
379
			<?=gettext("Enter an alternative address here to be used to monitor the link. This is used for the " .
380
			"quality RRD graphs as well as the load balancer entries. Use this if the gateway does not respond " .
381
			"to ICMP echo requests (pings)"); ?>.</strong>
382
			<br />
383
		  </td>
384
		</tr>
385
		<tr>
386
		  <td width="22%" valign="top" class="vncell"><?=gettext("Advanced");?></td>
387
		  <td width="78%" class="vtable">
388
			<div id="showadvgatewaybox" <? if (!empty($pconfig['latencylow']) || !empty($pconfig['latencyhigh']) || !empty($pconfig['losslow']) || !empty($pconfig['losshigh']) || (isset($pconfig['weight']) && $pconfig['weight'] > 1)) echo "style='display:none'"; ?>>
389
				<input type="button" onClick="show_advanced_gateway()" value="Advanced"></input> - Show advanced option</a>
390
			</div>
391
			<div id="showgatewayadv" <? if (empty($pconfig['latencylow']) && empty($pconfig['latencyhigh']) && empty($pconfig['losslow']) && empty($pconfig['losshigh']) && (empty($pconfig['weight']) || $pconfig['weight'] == 1)) echo "style='display:none'"; ?>>
392
                        <table class="tabcont" width="100%" border="0" cellspacing="0" cellpadding="6">
393
			<tr>
394
                                <td width="22%" valign="top" class="vncellreq"><?=gettext("Weight");?></td>
395
                                <td width="78%" class="vtable">
396
					<select name='weight' class='formfldselect' id='weight'>
397
				<?php
398
					for ($i = 1; $i < 6; $i++) {
399
                                        	$selected = "";
400
                                        	if ($pconfig['weight'] == $i)
401
                                                	$selected = "selected";
402
                                        	echo "<option value='{$i}' {$selected} >{$i}</option>";
403
                                	}
404
				?>
405
					</select>
406
					<br /><?=gettext("Weight for this gateway when used in a Gateway Group.");?> <br />
407
		   		</td>
408
			</tr>
409
                        <tr>
410
                                <td width="22%" valign="top" class="vncellreq"><?=gettext("Latency thresholds");?></td>
411
                                <td width="78%" class="vtable">
412
                                <?=gettext("From");?>
413
                                    <input name="latencylow" type="text" class="formfld unknown" id="latencylow" size="2"
414
                                        value="<?=htmlspecialchars($pconfig['latencylow']);?>">
415
                                <?=gettext("To");?>
416
                                    <input name="latencyhigh" type="text" class="formfld unknown" id="latencyhigh" size="2"
417
                                        value="<?=htmlspecialchars($pconfig['latencyhigh']);?>">
418
                                    <br> <span class="vexpl"><?=gettext("These define the low and high water marks for latency in milliseconds.");?></span></td>
419
                                </td>
420
                        </tr>
421
                        <tr>
422
                                <td width="22%" valign="top" class="vncellreq"><?=gettext("Packet Loss thresholds");?></td>
423
                                <td width="78%" class="vtable">
424
                                <?=gettext("From");?>
425
                                    <input name="losslow" type="text" class="formfld unknown" id="losslow" size="2"
426
                                        value="<?=htmlspecialchars($pconfig['losslow']);?>">
427
                                <?=gettext("To");?>
428
                                    <input name="losshigh" type="text" class="formfld unknown" id="losshigh" size="2"
429
                                        value="<?=htmlspecialchars($pconfig['losshigh']);?>">
430
                                    <br> <span class="vexpl"><?=gettext("These define the low and high water marks for packet loss in %.");?></span></td>
431
                                </td>
432
                        </tr>
433
			<tr>
434
                                <td width="22%" valign="top" class="vncellreq"><?=gettext("Down");?></td>
435
                                <td width="78%" class="vtable">
436
                                    <input name="down" type="text" class="formfld unknown" id="down" size="2"
437
                                        value="<?=htmlspecialchars($pconfig['down']);?>">
438
                                    <br> <span class="vexpl"><?=gettext("This defines the down time for the alarm to fire, in seconds.");?></span></td>
439
                                </td>
440
                        </tr>
441
                        </table>
442
			</div>
443
		   </td>
444
		</tr>
445
		<tr>
446
                  <td width="22%" valign="top" class="vncell"><?=gettext("Description"); ?></td>
447
                  <td width="78%" class="vtable"> 
448
                    <input name="descr" type="text" class="formfld unknown" id="descr" size="40" value="<?=htmlspecialchars($pconfig['descr']);?>">
449
                    <br> <span class="vexpl"><?=gettext("You may enter a description here for your reference (not parsed)"); ?>.</span></td>
450
                </tr>
451
                <tr>
452
                  <td width="22%" valign="top">&nbsp;</td>
453
                  <td width="78%"> 
454
                    <input name="Submit" type="submit" class="formbtn" value="<?=gettext("Save");?>"> <input type="button" value="<?=gettext("Cancel");?>" class="formbtn"  onclick="history.back()">
455
                    <?php if (isset($id) && $a_gateways[$id]): ?>
456
                    <input name="id" type="hidden" value="<?=htmlspecialchars($id);?>">
457
                    <?php endif; ?>
458
                  </td>
459
                </tr>
460
              </table>
461
</form>
462
<?php include("fend.inc"); ?>
463
<script language="JavaScript">
464
enable_change(document.iform.defaultgw);
465
</script>
466
</body>
467
</html>
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