Support up to 4 DNS Servers in DHCP

1 files changed, 11 insertions, 3 deletions

diff --git a/usr/local/www/services_dhcp.php b/usr/local/www/services_dhcp.php
index 6de13c2..5588759 100644
--- a/usr/local/www/services_dhcp.php
+++ b/usr/local/www/services_dhcp.php
@@ -181,7 +181,7 @@ if (is_array($dhcpdconf)) {
 	$pconfig['domain'] = $dhcpdconf['domain'];
 	$pconfig['domainsearchlist'] = $dhcpdconf['domainsearchlist'];
 	list($pconfig['wins1'],$pconfig['wins2']) = $dhcpdconf['winsserver'];
-	list($pconfig['dns1'],$pconfig['dns2']) = $dhcpdconf['dnsserver'];
+	list($pconfig['dns1'],$pconfig['dns2'],$pconfig['dns3'],$pconfig['dns4']) = $dhcpdconf['dnsserver'];
 	$pconfig['denyunknown'] = isset($dhcpdconf['denyunknown']);
 	$pconfig['ddnsdomain'] = $dhcpdconf['ddnsdomain'];
 	$pconfig['ddnsdomainprimary'] = $dhcpdconf['ddnsdomainprimary'];
@@ -256,8 +256,8 @@ if (isset($_POST['submit'])) {
 			if(!ip_in_subnet($_POST['gateway'], gen_subnet($parent_ip, $parent_sn) . "/" . $parent_sn) && !ip_in_interface_alias_subnet($_POST['if'], $_POST['gateway']))
 				$input_errors[] = sprintf(gettext("The gateway address %s does not lie within the chosen interface's subnet."), $_POST['gateway']);
 		}
-		if (($_POST['dns1'] && !is_ipaddrv4($_POST['dns1'])) || ($_POST['dns2'] && !is_ipaddrv4($_POST['dns2'])))
-			$input_errors[] = gettext("A valid IP address must be specified for the primary/secondary DNS servers.");
+		if (($_POST['dns1'] && !is_ipaddrv4($_POST['dns1'])) || ($_POST['dns2'] && !is_ipaddrv4($_POST['dns2'])) || ($_POST['dns3'] && !is_ipaddrv4($_POST['dns3'])) || ($_POST['dns4'] && !is_ipaddrv4($_POST['dns4'])))
+			$input_errors[] = gettext("A valid IP address must be specified for each of the DNS servers.");
 
 		if ($_POST['deftime'] && (!is_numeric($_POST['deftime']) || ($_POST['deftime'] < 60)))
 				$input_errors[] = gettext("The default lease time must be at least 60 seconds.");
@@ -475,6 +475,10 @@ if (isset($_POST['submit'])) {
 			$dhcpdconf['dnsserver'][] = $_POST['dns1'];
 		if ($_POST['dns2'])
 			$dhcpdconf['dnsserver'][] = $_POST['dns2'];
+		if ($_POST['dns3'])
+			$dhcpdconf['dnsserver'][] = $_POST['dns3'];
+		if ($_POST['dns4'])
+			$dhcpdconf['dnsserver'][] = $_POST['dns4'];
 
 		$dhcpdconf['gateway'] = $_POST['gateway'];
 		$dhcpdconf['domain'] = $_POST['domain'];
@@ -628,6 +632,8 @@ include("head.inc");
 		document.iform.wins2.disabled = endis;
 		document.iform.dns1.disabled = endis;
 		document.iform.dns2.disabled = endis;
+		document.iform.dns3.disabled = endis;
+		document.iform.dns4.disabled = endis;
 		document.iform.deftime.disabled = endis;
 		document.iform.maxtime.disabled = endis;
 		document.iform.gateway.disabled = endis;
@@ -915,6 +921,8 @@ include("head.inc");
 			<td width="78%" class="vtable">
 				<input name="dns1" type="text" class="formfld unknown" id="dns1" size="20" value="<?=htmlspecialchars($pconfig['dns1']);?>" /><br />
 				<input name="dns2" type="text" class="formfld unknown" id="dns2" size="20" value="<?=htmlspecialchars($pconfig['dns2']);?>" /><br />
+				<input name="dns3" type="text" class="formfld unknown" id="dns3" size="20" value="<?=htmlspecialchars($pconfig['dns3']);?>" /><br />
+				<input name="dns4" type="text" class="formfld unknown" id="dns4" size="20" value="<?=htmlspecialchars($pconfig['dns4']);?>" /><br />
 				<?=gettext("NOTE: leave blank to use the system default DNS servers - this interface's IP if DNS forwarder is enabled, otherwise the servers configured on the General page.");?>
 			</td>
 			</tr>