(legacy) partial fix for src/www/vpn_ipsec_phase2.php

CRITICAL: When configuring a Phase 2 tunnel and setting P2 protocol to ESP, this setting is ignored. The GUI will show an empty value for P2 protocol and the ipsec.conf will not contain the required "esp" line.

src/www/vpn_ipsec_phase2.php

@@ -193,7 +193,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
 			/* defaults */
 	    $pconfig['localid_type'] = "lan";
 	    $pconfig['remoteid_type'] = "network";
-	    $pconfig['proto'] = "esp";
+	    $pconfig['protocol'] = "esp";
 	    $pconfig['ealgos'] = explode(",", "3des,blowfish,cast128,aes");
 	    $pconfig['hash-algorithm-option'] = explode(",", "hmac_sha1,hmac_md5");
 	    $pconfig['pfsgroup'] = "0";
@@ -353,7 +353,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
 		}
 
 		/* For ESP protocol, handle encryption algorithms */
-		if ($pconfig['proto'] == "esp") {
+		if ($pconfig['protocol'] == "esp") {
 				$ealgos = pconfig_to_ealgos($pconfig);
 
 				if (!count($ealgos)) {
@@ -443,7 +443,7 @@ include("head.inc");
 $( document ).ready(function() {
 	// old js code..
 	change_mode('<?=$pconfig['mode']?>');
-	change_protocol('<?=$pconfig['proto']?>');
+	change_protocol('<?=$pconfig['protocol']?>');
 	typesel_change_local(<?=$pconfig['localid_netbits']?>);
 <?php if (isset($pconfig['natlocalid_netbits'])):
 ?>
@@ -805,11 +805,11 @@ if (isset($input_errors) && count($input_errors) > 0) {
 								<tr>
 									<td><a id="help_for_proto" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Protocol"); ?></td>
 									<td width="78%" class="vtable">
-										<select name="proto" class="formselect" onchange="change_protocol()">
+										<select name="protocol" class="formselect" onchange="change_protocol()">
 	<?php
 											foreach (array('esp' => 'ESP','ah' => 'AH') as $proto => $protoname) :
 	?>
-											<option value="<?=$proto;?>" <?= $proto == $pconfig['proto'] ? "selected=\"selected\"" : "";?>>
+											<option value="<?=$proto;?>" <?= $proto == $pconfig['protocol'] ? "selected=\"selected\"" : "";?>>
 												<?=$protoname;?>
 											</option>
 										<?php