summaryrefslogtreecommitdiffstats
path: root/usr/local/www/services_dhcp_relay.php
blob: 82c1666893c607c51d84b4f7d6b3084c83da4359 (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
<?php
/*
	services_dhcp_relay.php

	Copyright (C) 2003-2004 Justin Ellison <justin@techadvise.com>.
	Copyright (C) 2010 	Ermal Lu├ži
	Copyright (C) 2013-2015 Electric Sheep Fencing, LP
	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:	dhcprelay
*/

##|+PRIV
##|*IDENT=page-services-dhcprelay
##|*NAME=Services: DHCP Relay page
##|*DESCR=Allow access to the 'Services: DHCP Relay' page.
##|*MATCH=services_dhcp_relay.php*
##|-PRIV

require("guiconfig.inc");
require_once("filter.inc");

$pconfig['enable'] = isset($config['dhcrelay']['enable']);
if (empty($config['dhcrelay']['interface']))
	$pconfig['interface'] = array();
else
	$pconfig['interface'] = explode(",", $config['dhcrelay']['interface']);
$pconfig['server'] = $config['dhcrelay']['server'];
$pconfig['agentoption'] = isset($config['dhcrelay']['agentoption']);

$iflist = get_configured_interface_with_descr();

/*   set the enabled flag which will tell us if DHCP server is enabled
 *   on any interface.   We will use this to disable dhcp-relay since
 *   the two are not compatible with each other.
 */
$dhcpd_enabled = false;
if (is_array($config['dhcpd'])) {
	foreach($config['dhcpd'] as $dhcpif => $dhcp) {
		if (isset($dhcp['enable']) && isset($config['interfaces'][$dhcpif]['enable'])) {
			$dhcpd_enabled = true;
			break;
		}
	}
}

if ($_POST) {

	unset($input_errors);
	$pconfig = $_POST;

	/* input validation */
	if ($_POST['enable']) {
		$reqdfields = explode(" ", "server interface");
		$reqdfieldsn = array(gettext("Destination Server"), gettext("Interface"));

		do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

		if ($_POST['server']) {
			$checksrv = explode(",", $_POST['server']);
			foreach ($checksrv as $srv) {
				if (!is_ipaddr($srv))
					$input_errors[] = gettext("A valid Destination Server IP address must be specified.");
			}
		}
	}

	if (!$input_errors) {
		$config['dhcrelay']['enable'] = $_POST['enable'] ? true : false;
		$config['dhcrelay']['interface'] = implode(",", $_POST['interface']);
		$config['dhcrelay']['agentoption'] = $_POST['agentoption'] ? true : false;
		$config['dhcrelay']['server'] = $_POST['server'];

		write_config();

		$retval = 0;
		$retval = services_dhcrelay_configure();
		$savemsg = get_std_save_message($retval);
		filter_configure();

	}
}

$closehead = false;
$pgtitle = array(gettext("Services"),gettext("DHCP Relay"));
$shortcut_section = "dhcp";
include("head.inc");

?>

<script type="text/javascript">
//<![CDATA[
function enable_change(enable_over) {
	if (document.iform.enable.checked || enable_over) {
		document.iform.server.disabled = 0;
		document.iform.interface.disabled = 0;
		document.iform.agentoption.disabled = 0;
	} else {
		document.iform.server.disabled = 1;
		document.iform.interface.disabled = 1;
		document.iform.agentoption.disabled = 1;
	}
}
//]]>
</script>
</head>

<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include("fbegin.inc"); ?>
<form action="services_dhcp_relay.php" method="post" name="iform" id="iform">
<?php if ($input_errors) print_input_errors($input_errors); ?>
<?php if ($savemsg) print_info_box($savemsg); ?>

<table width="100%" border="0" cellpadding="0" cellspacing="0" summary="dhcp relay">
  <tr>
    <td>
	<div id="mainarea">
              <table class="tabcont" width="100%" border="0" cellpadding="6" cellspacing="0" summary="main area">
		<tr>
<?php
	if ($dhcpd_enabled) {
		echo "<td>DHCP Server is currently enabled. Cannot enable the DHCP Relay service while the DHCP Server is enabled on any interface.";
			echo "</td></tr></table></div></td></tr></table></form>";
			include("fend.inc"); 
			echo "</body></html>";
			exit;
		}
?>

			<td colspan="2" valign="top" class="listtopic"><?=gettext("DHCP Relay configuration"); ?></td>
		</tr>
		<tr>
                        <td width="22%" valign="top" class="vncellreq">Enable</td>
                        <td width="78%" class="vtable">
			<input name="enable" type="checkbox" value="yes" <?php if ($pconfig['enable']) echo "checked=\"checked\""; ?> onclick="enable_change(false)" />
                          <strong><?php printf(gettext("Enable DHCP relay on interface"));?></strong>
			</td>
		</tr>
		<tr>
                        <td width="22%" valign="top" class="vncellreq">Interface(s)</td>
                        <td width="78%" class="vtable">
				<select id="interface" name="interface[]" multiple="multiple" class="formselect" size="3">
			<?php
                                foreach ($iflist as $ifent => $ifdesc) {
					if (!is_ipaddr(get_interface_ip($ifent)))
						continue;
					echo "<option value=\"{$ifent}\"";
					if (in_array($ifent, $pconfig['interface']))
						echo " selected=\"selected\"";
					echo ">{$ifdesc}</option>\n";
				}
			?>
                                </select>
				<br />Interfaces without an IP address will not be shown.
			</td>
		</tr>
		<tr>
	              <td width="22%" valign="top" class="vtable">&nbsp;</td>
                      <td width="78%" class="vtable">
<input name="agentoption" type="checkbox" value="yes" <?php if ($pconfig['agentoption']) echo "checked=\"checked\""; ?> />
                      <strong><?=gettext("Append circuit ID and agent ID to requests"); ?></strong><br />
                      <?php printf(gettext("If this is checked, the DHCP relay will append the circuit ID (%s interface number) and the agent ID to the DHCP request."), $g['product_name']); ?></td>
		</tr>
		<tr>
                        <td width="22%" valign="top" class="vncellreq"><?=gettext("Destination server");?></td>
                        <td width="78%" class="vtable">
                          <input name="server" type="text" class="formfld unknown" id="server" size="20" value="<?=htmlspecialchars($pconfig['server']);?>" />
                          <br />
			  <?=gettext("This is the IP address of the server to which DHCP requests are relayed. You can enter multiple server IP addresses, separated by commas.");?>
                        </td>
		</tr>
		<tr>
                        <td width="22%" valign="top">&nbsp;</td>
                        <td width="78%">
                          <input name="Submit" type="submit" class="formbtn" value="<?=gettext("Save");?>" onclick="enable_change(true)" />
                        </td>
		</tr>
	</table>
	</div>
    </td>
  </tr>
</table>
</form>
<script type="text/javascript">
//<![CDATA[
enable_change(false);
//]]>
</script>
<?php include("fend.inc"); ?>
</body>
</html>
OpenPOWER on IntegriCloud