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
|
<?php
/*
* services_dhcp_relay.php
*
* part of pfSense (https://www.pfsense.org)
* Copyright (c) 2004-2016 Rubicon Communications, LLC (Netgate)
* Copyright (c) 2003-2004 Justin Ellison <justin@techadvise.com>
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
##|+PRIV
##|*IDENT=page-services-dhcprelay
##|*NAME=Services: DHCP Relay
##|*DESCR=Allow access to the 'Services: DHCP Relay' page.
##|*MATCH=services_dhcp_relay.php*
##|-PRIV
require_once("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']);
}
$pconfig['agentoption'] = isset($config['dhcrelay']['agentoption']);
$iflist = array_intersect_key(
get_configured_interface_with_descr(),
array_flip(
array_filter(
array_keys(get_configured_interface_with_descr()),
function($if) {
return is_ipaddr(get_interface_ip($if));
}
)
)
);
/* 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);
$svrlist = '';
if ($_POST['server']) {
foreach ($_POST['server'] as $checksrv => $srv) {
if (!is_ipaddr($srv[0])) {
$input_errors[] = gettext("A valid Destination Server IP address must be specified.");
}
if (!empty($srv[0])) { // Filter out any empties
if (!empty($svrlist)) {
$svrlist .= ',';
}
$svrlist .= $srv[0];
}
}
}
}
// Now $svrlist is a comma separated list of servers ready to save to the config system
$pconfig['server'] = $svrlist;
if (!$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'] = $svrlist;
write_config();
$retval = 0;
$retval = services_dhcrelay_configure();
$savemsg = get_std_save_message($retval);
filter_configure();
}
}
$pconfig['server'] = $config['dhcrelay']['server'];
$pgtitle = array(gettext("Services"), gettext("DHCP Relay"));
$shortcut_section = "dhcp";
include("head.inc");
if ($dhcpd_enabled) {
print_info_box(gettext("DHCP Server is currently enabled. Cannot enable the DHCP Relay service while the DHCP Server is enabled on any interface."), 'danger', false);
include("foot.inc");
exit;
}
if ($input_errors) {
print_input_errors($input_errors);
}
if ($savemsg) {
print_info_box($savemsg, 'success');
}
$form = new Form;
$section = new Form_Section('DHCP Relay Configuration');
$section->addInput(new Form_Checkbox(
'enable',
'Enable',
'Enable DHCP relay on interface',
$pconfig['enable']
))->toggles('.form-group:not(:first-child)');
$section->addInput(new Form_Select(
'interface',
'Interface(s)',
$pconfig['interface'],
$iflist,
true
))->setHelp('Interfaces without an IP address will not be shown.');
$section->addInput(new Form_Checkbox(
'agentoption',
'',
'Append circuit ID and agent ID to requests',
$pconfig['agentoption']
))->setHelp(
'If this is checked, the DHCP relay will append the circuit ID (%s interface number) and the agent ID to the DHCP request.',
[$g['product_name']]
);
//Small function to prevent duplicate code
function createDestinationServerInputGroup($value = null) {
$group = new Form_Group('Destination server');
$group->add(new Form_IpAddress(
'server',
'Destination server',
$value
))->setWidth(4)
->setHelp('This is the IP address of the server to which DHCP requests are relayed.')
->setIsRepeated();
$group->enableDuplication(null, true); // Buttons are in-line with the input
return $group;
}
if (!isset($pconfig['server'])) {
$section->add(createDestinationServerInputGroup());
} else {
foreach (explode(',', $pconfig['server']) as $server) {
$section->add(createDestinationServerInputGroup($server));
}
}
$form->add($section);
print $form;
include("foot.inc");
|
