Project

General

Profile

Download (19.1 KB) Statistics
| Branch: | Tag: | Revision:
1
#!/usr/local/bin/php
2
<?php 
3
/* $Id$ */
4
/*
5
	services_dhcp.php
6
	part of m0n0wall (http://m0n0.ch/wall)
7
	
8
	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
9
	All rights reserved.
10
	
11
	Redistribution and use in source and binary forms, with or without
12
	modification, are permitted provided that the following conditions are met:
13
	
14
	1. Redistributions of source code must retain the above copyright notice,
15
	   this list of conditions and the following disclaimer.
16
	
17
	2. Redistributions in binary form must reproduce the above copyright
18
	   notice, this list of conditions and the following disclaimer in the
19
	   documentation and/or other materials provided with the distribution.
20
	
21
	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
22
	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
23
	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24
	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
25
	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26
	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28
	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29
	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30
	POSSIBILITY OF SUCH DAMAGE.
31
*/
32

    
33
require("guiconfig.inc");
34

    
35
$if = $_GET['if'];
36
if ($_POST['if'])
37
	$if = $_POST['if'];
38
	
39
$iflist = array("lan" => "LAN");
40

    
41
for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
42
	$oc = $config['interfaces']['opt' . $i];
43
	
44
	if (isset($oc['enable']) && $oc['if'] && (!$oc['bridge'])) {
45
		$iflist['opt' . $i] = $oc['descr'];
46
	}
47
}
48

    
49
if (!$if || !isset($iflist[$if]))
50
	$if = "lan";
51

    
52
$pconfig['range_from'] = $config['dhcpd'][$if]['range']['from'];
53
$pconfig['range_to'] = $config['dhcpd'][$if]['range']['to'];
54
$pconfig['deftime'] = $config['dhcpd'][$if]['defaultleasetime'];
55
$pconfig['maxtime'] = $config['dhcpd'][$if]['maxleasetime'];
56
$pconfig['gateway'] = $config['dhcpd'][$if]['gateway'];
57
list($pconfig['wins1'],$pconfig['wins2']) = $config['dhcpd'][$if]['winsserver'];
58
list($pconfig['dns1'],$pconfig['dns2']) = $config['dhcpd'][$if]['dnsserver'];
59
$pconfig['enable'] = isset($config['dhcpd'][$if]['enable']);
60
$pconfig['denyunknown'] = isset($config['dhcpd'][$if]['denyunknown']);
61
$pconfig['staticarp'] = isset($config['dhcpd'][$if]['staticarp']);
62
$pconfig['failover_peerip'] = $config['dhcpd'][$if]['failover_peerip'];
63

    
64
$ifcfg = $config['interfaces'][$if];
65

    
66
if (!is_array($config['dhcpd'][$if]['staticmap'])) {
67
	$config['dhcpd'][$if]['staticmap'] = array();
68
}
69
staticmaps_sort($if);
70
$a_maps = &$config['dhcpd'][$if]['staticmap'];
71

    
72
function is_inrange($test, $start, $end) {
73
	if ( (ip2long($test) < ip2long($end)) && (ip2long($test) > ip2long($start)) )
74
		return true;
75
	else
76
		return false;
77
}
78

    
79
if ($_POST) {
80

    
81
	unset($input_errors);
82

    
83
	$pconfig = $_POST;
84

    
85
	/* input validation */
86
	if ($_POST['enable']) {
87
		$reqdfields = explode(" ", "range_from range_to");
88
		$reqdfieldsn = explode(",", "Range begin,Range end");
89
		
90
		do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
91

    
92
		foreach($a_maps as $mapent) {
93
			if(is_inrange($mapent['ipaddr'], $_POST['range_from'], $_POST['range_to'])) {
94
				$input_errors[] = "{$mapent['ipaddr']} is inside the range you specified.";
95
			}
96

    
97
		}
98
		
99
		if (($_POST['range_from'] && !is_ipaddr($_POST['range_from']))) {
100
			$input_errors[] = "A valid range must be specified.";
101
		}
102
		if (($_POST['range_to'] && !is_ipaddr($_POST['range_to']))) {
103
			$input_errors[] = "A valid range must be specified.";
104
		}
105
		if (($_POST['gateway'] && !is_ipaddr($_POST['gateway'])))
106
			$input_errors[] = "A valid IP address must be specified for the gateway.";
107
		if (($_POST['wins1'] && !is_ipaddr($_POST['wins1'])) || ($_POST['wins2'] && !is_ipaddr($_POST['wins2']))) {
108
			$input_errors[] = "A valid IP address must be specified for the primary/secondary WINS servers.";
109
		}
110
		if (($_POST['dns1'] && !is_ipaddr($_POST['dns1'])) || ($_POST['dns2'] && !is_ipaddr($_POST['dns2']))) {
111
			$input_errors[] = "A valid IP address must be specified for the primary/secondary DNS servers.";
112
		}
113
		if ($_POST['deftime'] && (!is_numeric($_POST['deftime']) || ($_POST['deftime'] < 60))) {
114
			$input_errors[] = "The default lease time must be at least 60 seconds.";
115
		}
116
		if ($_POST['maxtime'] && (!is_numeric($_POST['maxtime']) || ($_POST['maxtime'] < 60) || ($_POST['maxtime'] <= $_POST['deftime']))) {
117
			$input_errors[] = "The maximum lease time must be at least 60 seconds and higher than the default lease time.";
118
		}
119
		
120
		if (!$input_errors) {
121
			/* make sure the range lies within the current subnet */
122
			$subnet_start = (ip2long($ifcfg['ipaddr']) & gen_subnet_mask_long($ifcfg['subnet']));
123
			$subnet_end = (ip2long($ifcfg['ipaddr']) | (~gen_subnet_mask_long($ifcfg['subnet'])));
124
			
125
			if ((ip2long($_POST['range_from']) < $subnet_start) || (ip2long($_POST['range_from']) > $subnet_end) ||
126
			    (ip2long($_POST['range_to']) < $subnet_start) || (ip2long($_POST['range_to']) > $subnet_end)) {
127
				$input_errors[] = "The specified range lies outside of the current subnet.";	
128
			}
129
			
130
			if (ip2long($_POST['range_from']) > ip2long($_POST['range_to']))
131
				$input_errors[] = "The range is invalid (first element higher than second element).";
132
			
133
			/* make sure that the DHCP Relay isn't enabled on this interface */
134
			if (isset($config['dhcrelay'][$if]['enable']))
135
				$input_errors[] = "You must disable the DHCP relay on the {$iflist[$if]} interface before enabling the DHCP server.";
136
		}
137
	}
138

    
139
	if (!$input_errors) {
140
		$config['dhcpd'][$if]['range']['from'] = $_POST['range_from'];
141
		$config['dhcpd'][$if]['range']['to'] = $_POST['range_to'];
142
		$config['dhcpd'][$if]['defaultleasetime'] = $_POST['deftime'];
143
		$config['dhcpd'][$if]['maxleasetime'] = $_POST['maxtime'];
144
		$config['dhcpd'][$if]['enable'] = $_POST['enable'] ? true : false;
145
		$config['dhcpd'][$if]['denyunknown'] = $_POST['denyunknown'] ? true : false;
146
		$config['dhcpd'][$if]['failover_peerip'] = $_POST['failover_peerip'];
147
				
148
		unset($config['dhcpd'][$if]['winsserver']);
149
		if ($_POST['wins1'])
150
			$config['dhcpd'][$if]['winsserver'][] = $_POST['wins1'];
151
		if ($_POST['wins2'])
152
			$config['dhcpd'][$if]['winsserver'][] = $_POST['wins2'];
153

    
154
		if ($_POST['dns1'])
155
			$config['dhcpd'][$if]['dnsserver'][] = $_POST['dns1'];
156
		if ($_POST['dns2'])
157
			$config['dhcpd'][$if]['dnsserver'][] = $_POST['dns2'];
158

    
159
			
160
		$config['dhcpd'][$if]['gateway'] = $_POST['gateway'];
161

    
162
		$config['dhcpd'][$if]['staticarp'] = $_POST['staticarp'] ? true : false;
163
	
164

    
165
		write_config();
166

    
167
		/* static arp configuration */
168
                if (isset($config['dhcpd'][$if]['staticarp']))
169
			interfaces_staticarp_configure($if);
170
		
171
		$retval = 0;
172
		config_lock();
173
		$retval = services_dhcpd_configure();
174
		config_unlock();
175
		$savemsg = get_std_save_message($retval);
176
	}
177
}
178

    
179
if ($_GET['act'] == "del") {
180
	if ($a_maps[$_GET['id']]) {
181
		unset($a_maps[$_GET['id']]);
182
		write_config();
183
		header("Location: services_dhcp.php?if={$if}");
184
		exit;
185
	}
186
}
187

    
188
$pgtitle = "Services: DHCP server";
189
include("head.inc");
190

    
191
?>
192

    
193
<script language="JavaScript">
194
<!--
195
function enable_change(enable_over) {
196
	var endis;
197
	endis = !(document.iform.enable.checked || enable_over);
198
	document.iform.range_from.disabled = endis;
199
	document.iform.range_to.disabled = endis;
200
	document.iform.wins1.disabled = endis;
201
	document.iform.wins2.disabled = endis;
202
	document.iform.dns1.disabled = endis;
203
	document.iform.dns2.disabled = endis;
204
	document.iform.deftime.disabled = endis;
205
	document.iform.maxtime.disabled = endis;
206
	document.iform.gateway.disabled = endis;
207
	document.iform.failover_peerip.disabled = endis;
208
	document.iform.staticarp.disabled = endis;
209
	document.iform.denyunknown.disabled = endis;
210
}
211
//-->
212
</script>
213

    
214
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
215
<?php include("fbegin.inc"); ?>
216
<p class="pgtitle"><?=$pgtitle?></p>
217
<form action="services_dhcp.php" method="post" name="iform" id="iform">
218
<?php if ($input_errors) print_input_errors($input_errors); ?>
219
<?php if ($savemsg) print_info_box($savemsg); ?>
220
<?php if (file_exists($d_staticmapsdirty_path)): ?><p>
221
<?php print_info_box_np("The static mapping configuration has been changed.<br>You must apply the changes in order for them to take effect.");?><br>
222
<?php endif; ?>
223
<table width="100%" border="0" cellpadding="0" cellspacing="0">
224
  <tr><td>
225
  <?php
226
	/* active tabs */
227
	$tab_array = array();
228
	$tabscounter = 0;
229
	$i = 0;
230
	foreach ($iflist as $ifent => $ifname) {
231
		if ($ifent == $if)
232
			$active = true;
233
		else
234
			$active = false;
235
		$tab_array[] = array($ifname, $active, "services_dhcp.php?if={$ifent}");
236
	}
237
	display_top_tabs($tab_array);
238
  ?>
239
  </td></tr>
240
  <tr> 
241
    <td>
242
	<div id="mainarea">
243
              <table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0">
244
                      <tr> 
245
                        <td width="22%" valign="top" class="vtable">&nbsp;</td>
246
                        <td width="78%" class="vtable">
247
<input name="enable" type="checkbox" value="yes" <?php if ($pconfig['enable']) echo "checked"; ?> onClick="enable_change(false)">
248
                          <strong>Enable DHCP server on 
249
                          <?=htmlspecialchars($iflist[$if]);?>
250
                          interface</strong></td>
251
                      </tr>
252
				  <tr>
253
	              <td width="22%" valign="top" class="vtable">&nbsp;</td>
254
                      <td width="78%" class="vtable">
255
<input name="denyunknown" id="denyunknown" type="checkbox" value="yes" <?php if ($pconfig['denyunknown']) echo "checked"; ?>>
256
                      <strong>Deny unknown clients</strong><br>
257
                      If this is checked, only the clients defined below will get DHCP leases from this server. </td>
258
		      		  </tr>
259
                      <tr> 
260
                        <td width="22%" valign="top" class="vncellreq">Subnet</td>
261
                        <td width="78%" class="vtable"> 
262
                          <?=gen_subnet($ifcfg['ipaddr'], $ifcfg['subnet']);?>
263
                        </td>
264
                      </tr>
265
                      <tr> 
266
                        <td width="22%" valign="top" class="vncellreq">Subnet 
267
                          mask</td>
268
                        <td width="78%" class="vtable"> 
269
                          <?=gen_subnet_mask($ifcfg['subnet']);?>
270
                        </td>
271
                      </tr>
272
                      <tr> 
273
                        <td width="22%" valign="top" class="vncellreq">Available 
274
                          range</td>
275
                        <td width="78%" class="vtable"> 
276
                          <?=long2ip(ip2long($ifcfg['ipaddr']) & gen_subnet_mask_long($ifcfg['subnet']));?>
277
                          - 
278
                          <?=long2ip(ip2long($ifcfg['ipaddr']) | (~gen_subnet_mask_long($ifcfg['subnet']))); ?>
279
                        </td>
280
                      </tr>
281
                      <tr> 
282
                        <td width="22%" valign="top" class="vncellreq">Range</td>
283
                        <td width="78%" class="vtable"> 
284
                          <input name="range_from" type="text" class="formfld" id="range_from" size="20" value="<?=htmlspecialchars($pconfig['range_from']);?>"> 
285
                          &nbsp;to&nbsp; <input name="range_to" type="text" class="formfld" id="range_to" size="20" value="<?=htmlspecialchars($pconfig['range_to']);?>">
286
			</td>
287
                      </tr>
288
                      <tr> 
289
                        <td width="22%" valign="top" class="vncell">WINS servers</td>
290
                        <td width="78%" class="vtable"> 
291
                          <input name="wins1" type="text" class="formfld" id="wins1" size="20" value="<?=htmlspecialchars($pconfig['wins1']);?>"><br>
292
                          <input name="wins2" type="text" class="formfld" id="wins2" size="20" value="<?=htmlspecialchars($pconfig['wins2']);?>">
293
			</td>
294
                      </tr>
295
                      <tr> 
296
                        <td width="22%" valign="top" class="vncell">DNS servers</td>
297
                        <td width="78%" class="vtable"> 
298
                          <input name="dns1" type="text" class="formfld" id="dns1" size="20" value="<?=htmlspecialchars($pconfig['dns1']);?>"><br>
299
                          <input name="dns2" type="text" class="formfld" id="dns2" size="20" value="<?=htmlspecialchars($pconfig['dns2']);?>"><br>
300
			  NOTE: leave blank to use the system default DNS servers.  This option is handy when your doing CARP+DHCP Failover, etc.
301
			</td>
302
                      </tr>
303
                     <tr> 
304
                       <td width="22%" valign="top" class="vncell">Gateway</td>
305
                       <td width="78%" class="vtable"> 
306
                         <input name="gateway" type="text" class="formfld" id="gateway" size="20" value="<?=htmlspecialchars($pconfig['gateway']);?>"><br>
307
			 The default is to use the IP of the firewall as the gateway.  Specify an alternate gateway here if this is not the correct gateway for your network.
308
			</td> 
309
                     </tr>
310
                      <tr> 
311
                        <td width="22%" valign="top" class="vncell">Default lease 
312
                          time</td>
313
                        <td width="78%" class="vtable"> 
314
                          <input name="deftime" type="text" class="formfld" id="deftime" size="10" value="<?=htmlspecialchars($pconfig['deftime']);?>">
315
                          seconds<br>
316
                          This is used for clients that do not ask for a specific 
317
                          expiration time.<br>
318
                          The default is 7200 seconds.
319
			</td>
320
                      </tr>
321
                      <tr> 
322
                        <td width="22%" valign="top" class="vncell">Maximum lease 
323
                          time</td>
324
                        <td width="78%" class="vtable"> 
325
                          <input name="maxtime" type="text" class="formfld" id="maxtime" size="10" value="<?=htmlspecialchars($pconfig['maxtime']);?>">
326
                          seconds<br>
327
                          This is the maximum lease time for clients that ask 
328
                          for a specific expiration time.<br>
329
                          The default is 86400 seconds.
330
			</td>
331
                      </tr>
332
                      <tr>
333
                        <td width="22%" valign="top" class="vncell">Failover peer IP:</td>
334
                        <td width="78%" class="vtable">
335
				<input name="failover_peerip" type="text" class="formfld" id="failover_peerip" size="10" value="<?=htmlspecialchars($pconfig['failover_peerip']);?>"><br>
336
				Leave blank to disable.  Enter the REAL address of the other machine.  Machines must be using CARP.
337
			</td>
338
		      </tr>
339
                      <tr>
340
                        <td width="22%" valign="top" class="vncell">Static ARP</td>
341
                        <td width="78%" class="vtable">
342
				<table>
343
					<tr>
344
						<td>
345
							<input valign="middle" type="checkbox" value="yes" name="staticarp" id="staticarp" <?php if($pconfig['staticarp']) echo " checked"; ?>>&nbsp;
346
						</td>
347
						<td>
348
							<b>Enable Static ARP entries</b>
349
						</td>
350
					</tr>
351
					<tr>
352
						<td>
353
							&nbsp;
354
						</td>
355
						<td>
356
							<span class="red"><strong>Note:</strong></span> This feature is under development.  Only the machines listed below will be able to communicate with the firewall on this NIC.  Disabling this has been tested to be broken, a reboot will be required to disable.  Be warned!
357
						</td>
358
					</tr>
359
				</table>
360
			</td>
361
                      </tr>
362
                      <tr> 
363
                        <td width="22%" valign="top">&nbsp;</td>
364
                        <td width="78%"> 
365
                          <input name="if" type="hidden" value="<?=$if;?>"> 
366
                          <input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)"> 
367
                        </td>
368
                      </tr>
369
                      <tr> 
370
                        <td width="22%" valign="top">&nbsp;</td>
371
                        <td width="78%"> <p><span class="vexpl"><span class="red"><strong>Note:<br>
372
                            </strong></span>The DNS servers entered in <a href="system.php">System: 
373
                            General setup</a> (or the <a href="services_dnsmasq.php">DNS 
374
                            forwarder</a>, if enabled) </span><span class="vexpl">will 
375
                            be assigned to clients by the DHCP server.<br>
376
                            <br>
377
                            The DHCP lease table can be viewed on the <a href="diag_dhcp_leases.php">Diagnostics: 
378
                            DHCP leases</a> page.<br>
379
                            </span></p>
380
			</td>
381
                      </tr>
382
                    </table>
383
              <table class="tabcont" width="100%" border="0" cellpadding="0" cellspacing="0">
384
                <tr>
385
                  <td width="35%" class="listhdrr">MAC address</td>
386
                  <td width="20%" class="listhdrr">IP address</td>
387
                  <td width="35%" class="listhdr">Description</td>
388
                  <td width="10%" class="list">
389
		  </td>
390
		</tr>
391
			  <?php $i = 0; foreach ($a_maps as $mapent): ?>
392
                <tr>
393
                  <td class="listlr" ondblclick="document.location='services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>';">
394
                    <?=htmlspecialchars($mapent['mac']);?>
395
                  </td>
396
                  <td class="listr" ondblclick="document.location='services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>';">
397
                    <?=htmlspecialchars($mapent['ipaddr']);?>&nbsp;
398
                  </td>
399
                  <td class="listbg" ondblclick="document.location='services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>';">
400
                    <font color="#FFFFFF"><?=htmlspecialchars($mapent['descr']);?>&nbsp;</font>
401
                  </td>
402
                  <td valign="middle" nowrap class="list">
403
                    <table border="0" cellspacing="0" cellpadding="1">
404
                      <tr>
405
                        <td valign="middle"><a href="services_dhcp_edit.php?if=<?=$if;?>&id=<?=$i;?>"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_e.gif" width="17" height="17" border="0"></a></td>
406
                        <td valign="middle"><a href="services_dhcp.php?if=<?=$if;?>&act=del&id=<?=$i;?>" onclick="return confirm('Do you really want to delete this mapping?')"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_x.gif" width="17" height="17" border="0"></a></td>
407
                      </tr>
408
                    </table>
409
                  </td>
410
                </tr>
411
		<?php $i++; endforeach; ?>
412
                <tr> 
413
                  <td class="list" colspan="3"></td>
414
                  <td class="list">
415
                    <table border="0" cellspacing="0" cellpadding="1">
416
                      <tr>
417
                        <td valign="middle"><a href="services_dhcp_edit.php?if=<?=$if;?>"><img src="./themes/<?= $g['theme']; ?>/images/icons/icon_plus.gif" width="17" height="17" border="0"></a></td>
418
                      </tr>
419
                    </table>
420
                  </td>
421
                </tr>
422
              </table>
423
	</div>
424
    </td>
425
  </tr>
426
</table>
427
</form>
428
<script language="JavaScript">
429
<!--
430
enable_change(false);
431
//-->
432
</script>
433
<?php include("fend.inc"); ?>
434
</body>
435
</html>
(94-94/144)