firewall: support tag/tagged for manual outbound NAT; closes #1586

src/etc/inc/filter.inc

@@ -1387,7 +1387,7 @@ function filter_nat_rules_outbound_automatic(&$FilterIflist, $src)
 }
 
 /* Generate a 'nat on' or 'no nat on' rule for given interface */
-function filter_nat_rules_generate_if(&$FilterIflist, $if, $src = "any", $srcport = "", $dst = "any", $dstport = "", $natip = "", $natport = "", $nonat = false, $staticnatport = false, $proto = "", $poolopts = "", $log = false, $ipproto = "inet")
+function filter_nat_rules_generate_if(&$FilterIflist, $if, $src = "any", $srcport = "", $dst = "any", $dstport = "", $natip = "", $natport = "", $nonat = false, $staticnatport = false, $proto = "", $poolopts = "", $log = false, $ipproto = "inet", $tag = '', $tagged = '')
 {
     global $config;
 
@@ -1473,6 +1473,14 @@ function filter_nat_rules_generate_if(&$FilterIflist, $if, $src = "any", $srcpor
     } elseif (!$natport) {
         $tgt .= " port 1024:65535"; // set source port range
     }
+    /* set and get tag handling */
+    $tagging = '';
+    if (!empty($tag)) {
+        $tagging .= " tag {$tag}";
+    }
+    if (!empty($tagged)) {
+        $tagging .= " tagged {$tagged}";
+    }
     /* Allow for negating NAT entries */
     if ($nonat) {
         $nat = "no nat";
@@ -1486,7 +1494,7 @@ function filter_nat_rules_generate_if(&$FilterIflist, $if, $src = "any", $srcpor
     $if_friendly = $FilterIflist[$if]['descr'];
     /* Put all the pieces together */
     if ($if_friendly) {
-        $natrule = "{$nat} {$logtag} on \${$if_friendly}{$ipprotocol}{$protocol} from {$src} to {$dst} {$target} {$poolopts} {$staticnatport_txt}\n";
+        $natrule = "{$nat} {$logtag} on \${$if_friendly}{$ipprotocol}{$protocol} from {$src} to {$dst}${tagging} {$target} {$poolopts} {$staticnatport_txt}\n";
     } else {
         $natrule .= "# Could not convert {$if} to friendly name(alias)\n";
     }
@@ -1686,7 +1694,7 @@ function filter_nat_rules_generate(&$FilterIflist)
                 $obtarget = ($obent['target'] == "other-subnet") ? $obent['targetip'] . '/' . $obent['targetip_subnet']: $obent['target'];
                 $poolopts = (is_subnet($obtarget) || is_alias($obtarget)) ? $obent['poolopts'] : "";
 
-                $natrules .= filter_nat_rules_generate_if (
+                $natrules .= filter_nat_rules_generate_if(
                   $FilterIflist,
                   $obent['interface'],
                   $src,
@@ -1700,7 +1708,9 @@ function filter_nat_rules_generate(&$FilterIflist)
                   $obent['protocol'],
                   $poolopts,
                   isset($obent['log']),
-                  $obent['ipprotocol']
+                  $obent['ipprotocol'],
+                  $obent['tag'],
+                  $obent['tagged']
                 );
             }
         }
@@ -1731,7 +1741,7 @@ function filter_nat_rules_generate(&$FilterIflist)
 
             $a_outs = filter_nat_rules_outbound_automatic($FilterIflist, $macroortable);
             foreach ($a_outs as $a_out) {
-                $natrules .= filter_nat_rules_generate_if (
+                $natrules .= filter_nat_rules_generate_if(
                     $FilterIflist,
                     $a_out['interface'],
                     $a_out['source']['network'],

src/www/firewall_nat_out_edit.php

@@ -106,7 +106,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
         // load data from config
         foreach (array('protocol','sourceport','dstport','natport','target','targetip'
                 ,'targetip_subnet','poolopts','interface','descr','nonat','log'
-                ,'disabled','staticnatport','nosync','ipprotocol') as $fieldname) {
+                ,'disabled','staticnatport','nosync','ipprotocol','tag','tagged') as $fieldname) {
               if (isset($a_out[$configId][$fieldname])) {
                   $pconfig[$fieldname] = $a_out[$configId][$fieldname];
               }
@@ -126,9 +126,9 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
     }
 
     // initialize unused elements
-    foreach (array('protocol','sourceport','dstport','natport','target','targetip'
-            ,'targetip_subnet','poolopts','interface','descr','nonat'
-            ,'disabled','staticnatport','nosync','source','source_subnet','ipprotocol') as $fieldname) {
+    foreach (array('protocol','sourceport','dstport','natport','target','targetip',
+            'targetip_subnet','poolopts','interface','descr','nonat','tag','tagged',
+            'disabled','staticnatport','nosync','source','source_subnet','ipprotocol') as $fieldname) {
           if (!isset($pconfig[$fieldname])) {
               $pconfig[$fieldname] = null;
           }
@@ -209,6 +209,8 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
         $natent['destination'] = array();
         $natent['descr'] = $pconfig['descr'];
         $natent['interface'] = $pconfig['interface'];
+        $natent['tag'] = $pconfig['tag'];
+        $natent['tagged'] = $pconfig['tagged'];
         $natent['poolopts'] = $pconfig['poolopts'];
         $natent['ipprotocol'] = $pconfig['ipprotocol'];
 
@@ -671,6 +673,21 @@ include("head.inc");
                     </div>
                   </td>
                 </tr>
+                <tr>
+                  <td><a id="help_for_natport" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Translation") . " / " .gettext("port:");?></td>
+                  <td>
+                    <input name="natport" type="text" value="<?=$pconfig['natport'];?>" />
+                    <div class="hidden" for="help_for_natport">
+                      <?=gettext("Enter the source port for the outbound NAT mapping.");?>
+                    </div>
+                  </td>
+                </tr>
+                <tr>
+                  <td><i class="fa fa-info-circle text-muted"></i> <?=gettext("Static-port:");?></td>
+                  <td>
+                    <input name="staticnatport" type="checkbox" <?=!empty($pconfig['staticnatport']) ? " checked=\"checked\"" : "";?> >
+                  </td>
+                </tr>
                 <tr>
                   <td><a id="help_for_poolopts" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Pool Options:");?></td>
                   <td>
@@ -708,19 +725,22 @@ include("head.inc");
                   </td>
                 </tr>
                 <tr>
-                  <td><a id="help_for_natport" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Translation") . " / " .gettext("port:");?></td>
-                  <td>
-                    <input name="natport" type="text" value="<?=$pconfig['natport'];?>" />
-                    <div class="hidden" for="help_for_natport">
-                      <?=gettext("Enter the source port for the outbound NAT mapping.");?>
-                    </div>
-                  </td>
+                    <td><a id="help_for_tag" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a>  <?=gettext("Set local tag"); ?></td>
+                    <td>
+                      <input name="tag" type="text" value="<?=$pconfig['tag'];?>" />
+                      <div class="hidden" for="help_for_tag">
+                        <?= gettext("You can mark a packet matching this rule and use this mark to match on other NAT/filter rules.") ?>
+                      </div>
+                    </td>
                 </tr>
                 <tr>
-                  <td><i class="fa fa-info-circle text-muted"></i> <?=gettext("Static-port:");?></td>
-                  <td>
-                    <input name="staticnatport" type="checkbox" <?=!empty($pconfig['staticnatport']) ? " checked=\"checked\"" : "";?> >
-                  </td>
+                    <td><a id="help_for_tagged" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a> <?=gettext("Match local tag"); ?>   </td>
+                    <td>
+                      <input name="tagged" type="text" value="<?=$pconfig['tagged'];?>" />
+                      <div class="hidden" for="help_for_tagged">
+                        <?=gettext("You can match packet on a mark placed before on another rule.")?>
+                      </div>
+                    </td>
                 </tr>
                 <tr>
                   <td><a id="help_for_nosync" href="#" class="showhelp"><i class="fa fa-info-circle"></i></a>  <?=gettext("No XMLRPC Sync"); ?></td>