Vlan tests are working

EduNetworkBuilder/NetTest.cs

@@ -504,6 +504,29 @@ namespace EduNetworkBuilder
                     if (srvr == shouldbe) 
                         return true;
                     break;
+                case NetTestType.NeedsForbiddenVLAN:
+                case NetTestType.NeedsTaggedVLAN:
+                case NetTestType.NeedsUntaggedVLAN:
+                    if (Source == null) return false; //Unable to do it.  Do not count it against them.
+                    string ifname = GetInterfaceFromVLANInterfaceRequirement();
+                    if (ifname == "") return false; //unable to do it.
+                    string nicname = Regex.Replace(ifname, @":\w*","");
+                    int id = GetIDFromVLANInterfaceRequirement();
+                    //Find the nic
+                    NetworkCard nic = Source.NicFromName(nicname);
+                    if (nic == null) return false; //no matching nic
+                    //find the interface
+                    NetworkInterface nif = nic.InterfaceFromName(ifname);
+                    if (nif == null) return false; //no matchint interface
+
+                    //find the entry for the vlan
+                    VLANInfo vi = nif.GetVLANInfo(id);
+                    if (vi == null) return false; //No such vlan or something.
+                    if (TheTest == NetTestType.NeedsForbiddenVLAN && vi.Tag == VLANTagType.Forbidden) return true;
+                    if (TheTest == NetTestType.NeedsUntaggedVLAN && vi.Tag == VLANTagType.Untagged) return true;
+                    if (TheTest == NetTestType.NeedsTaggedVLAN && vi.Tag == VLANTagType.Tagged) return true;
+                    return false;
+                    break;
                 case NetTestType.LockAll:
                 case NetTestType.LockDHCP:
                 case NetTestType.LockIP:

EduNetworkBuilder/NetworkCard.cs

@@ -769,6 +769,16 @@ namespace EduNetworkBuilder
             return null;
         }
 
+        public NetworkInterface InterfaceFromName(string InterfaceName)
+        {
+            foreach (NetworkInterface oneIF in interfaces)
+            {
+                if (oneIF.nic_name == InterfaceName)
+                    return oneIF;
+            }
+            return null;
+        }
+
         public IPAddress FirstIP()
         {
             List<IPAddress> addresses = IPAddressList();