Merge pull request #1844 from peppelinux/master

Feature request: ARP flush cache table #1833

src/opnsense/mvc/app/controllers/OPNsense/Diagnostics/Api/InterfaceController.php

@@ -75,6 +75,21 @@ class InterfaceController extends ApiControllerBase
         return $arptable;
     }
 
+    /**
+     * retrieve system arp table contents
+     * @return array
+     */
+    public function flushArpAction()
+    {
+        if ($this->request->isPost()) {
+            $backend = new Backend();
+            $response = $backend->configdpRun("interface flush arp");
+            return $response;
+        } else {
+            return array("message" => "error");
+        }
+    }
+    
     /**
      * retrieve system ndp table contents
      * @return array

src/opnsense/mvc/app/views/OPNsense/Diagnostics/arp.volt

@@ -61,7 +61,28 @@ POSSIBILITY OF SUCH DAMAGE.
                     }
             );
         }
-
+        
+        $("#flushModal").click(function(event){
+          BootstrapDialog.show({
+            type:BootstrapDialog.TYPE_DANGER,
+            title: "<?= gettext("Flush ARP Table");?>",
+            message: "<?=gettext("If an IP of a host is changed you've probably got that the host has no network connectivity for a period of time. The router has cached the old MAC address (ethernet hardware address) associated with the host's IP address. This cache will persist on the gateway network device until the ARP cache on the gateway network device expires. You can also flush it manually.");?>",
+            buttons: [{
+                      label: "<?= gettext("Close");?>",
+                      action: function(dialogRef) {
+                        dialogRef.close();
+                      }}, {
+                      label: "<?= gettext("Flush ARP Table");?>",
+                      action: function(dialogRef) {
+                        ajaxCall(url = "/api/diagnostics/interface/flushArp",
+                            sendData = {}, callback = function (data, status) {
+                            $("#refresh").click();
+                        });
+                    }
+                  }]
+          }); // end BootstrapDialog.show
+        }); // end .click(function(event)
+        
         // initial fetch
         $("#refresh").click(updateARP);
         $("#refresh").click();
@@ -96,6 +117,10 @@ POSSIBILITY OF SUCH DAMAGE.
                 <div class="row">
                     <div class="col-xs-12">
                         <div class="pull-right">
+                            <button type="button" class="btn btn-default" id="flushModal">
+                                <span>{{ lang._('Flush') }}</span>
+                                <span class="fa fa-eraser"></span>
+                            </button>                            
                             <button id="refresh" type="button" class="btn btn-default">
                                 <span>{{ lang._('Refresh') }}</span>
                                 <span class="fa fa-refresh"></span>

src/opnsense/service/conf/actions.d/actions_interface.conf

@@ -54,6 +54,12 @@ parameters: %s
 type:script_output
 message:request arp table
 
+[flush.arp]
+command:arp -da
+parameters:
+type:script_output
+message:flush arp table
+
 [list.ndp]
 command:/usr/local/opnsense/scripts/interfaces/list_ndp.py
 parameters: %s