check for broken wireless links

EduNetworkBuilder/Network.cs

@@ -1122,6 +1122,23 @@ namespace EduNetworkBuilder
             }
         }
 
+        public bool DoAllVerifyLinks()
+        {
+            NetworkLink nl;
+            bool didanything = false;
+            NetworkComponent nc;
+            for (int i = NetComponents.Count -1; i >= 0; i-- )
+            {
+                nc = NetComponents[i];
+                if (NB.GetComponentType(nc) == GeneralComponentType.link)
+                {
+                    nl = (NetworkLink)nc;
+                    didanything = nl.VerifyLinkIntegrity() || didanything;
+                }
+            }
+            return didanything;
+        }
+
         public void DoAllClearArp()
         {
             NetworkDevice nd;

EduNetworkBuilder/NetworkBuilder.cs

@@ -343,6 +343,19 @@ namespace EduNetworkBuilder
             }
         }
 
+        public void UpdateLinks()
+        {
+            bool didanything = false;
+            //Remove links if needed
+            didanything = didanything || myNetwork.DoAllVerifyLinks();
+
+            //now, update wireless links if we can.
+
+            //If we have done anything, check for tests being completed
+            if (didanything)
+                myNetwork.TestForCompletion(true);
+        }
+
         public void UpdateForm()
         {
             UpdateMenu();
@@ -606,11 +619,15 @@ namespace EduNetworkBuilder
 
         private void pbNetworkView_Edit_Click(object sender, EventArgs e)
         {
+            if (ItemClickedOn.GetNetType() == NetworkComponentType.microwave || ItemClickedOn.GetNetType() == NetworkComponentType.fluorescent)
+                return;
             if (ItemClickedOn != null)
             {
+
                 DeviceConfig editwindow = new DeviceConfig(ItemClickedOn);
                 editwindow.ShowDialog();
             }
+            UpdateLinks();
             myNetwork.TestForCompletion(true);
             pbNetworkView.Update();
             pbNetworkView.Invalidate();
@@ -631,6 +648,7 @@ namespace EduNetworkBuilder
                 }
                 myNetwork.RemoveComponent(ItemClickedOn);
             }
+            UpdateLinks();
             myNetwork.TestForCompletion(true);
             pbNetworkView.Update();
             pbNetworkView.Invalidate();
@@ -717,17 +735,8 @@ namespace EduNetworkBuilder
 
             if (duration.TotalMilliseconds < 250)
             { 
-                //This mouse-up is part of a double-click operation.
+                //This mouse-up is part of a double-click operation. Do an edit
-                if(ItemClickedOn!= null)
+                pbNetworkView_Edit_Click(sender, e);
-                {
-                    if (ItemClickedOn.GetNetType() == NetworkComponentType.microwave || ItemClickedOn.GetNetType() == NetworkComponentType.fluorescent)
-                        return;
-                    DeviceConfig editwindow = new DeviceConfig(ItemClickedOn);
-                    editwindow.ShowDialog();
-                    pbNetworkView.Update();
-                    pbNetworkView.Invalidate();
-                    myNetwork.TestForCompletion(true);
-                }
             }
             else
             {
@@ -803,6 +812,7 @@ namespace EduNetworkBuilder
                     if (Math.Abs(ClickedLocation.X - ClickLocation.X) > 5 || Math.Abs(ClickedLocation.Y - ClickLocation.Y) > 5)
                     {
                         ItemClickedOn.ChangeLocation(CenteredLocation);
+                        UpdateLinks();
                         pbNetworkView.Invalidate();
                     }
                 }
@@ -812,6 +822,7 @@ namespace EduNetworkBuilder
 
         private void pbNetworkView_Paint(object sender, PaintEventArgs e)
         {
+
             myNetwork.Print(e);
         }
 

EduNetworkBuilder/NetworkCard.cs

@@ -137,6 +137,13 @@ namespace EduNetworkBuilder
             get { return myNicType; }
         }
 
+        public bool isWireless()
+        {
+            if (myNicType == NicType.wport || myNicType == NicType.wlan)
+                return true;
+            return false;
+        }
+
         public bool HasIP(UInt32 IP)
         {
             if (myNicType == NicType.port) return false;

EduNetworkBuilder/NetworkLink.cs

@@ -5,7 +5,7 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Drawing;
 using System.Xml;
-
+using System.Windows.Forms;
 
 namespace EduNetworkBuilder
 {
@@ -25,6 +25,47 @@ namespace EduNetworkBuilder
             myNet.MarkAsLinked(source, GetUniqueIdentifier);
             myNet.MarkAsLinked(dest, GetUniqueIdentifier);
             theLinkType = type;
+            NetworkDevice sDev = myNet.GetDeviceFromID(source);
+            NetworkDevice dDev = myNet.GetDeviceFromID(dest);
+            if (sDev == null || dDev == null) return;
+            NetworkCard sNic = sDev.NicFromID(source);
+            NetworkCard dNic = dDev.NicFromID(dest);
+            NetworkCard AccessPoint = null;
+            NetworkCard Client = null;
+            bool IsWireless = false;
+            if(sNic != null && dNic != null)
+            { 
+                if(sNic.GetNicType == NicType.wport)
+                {
+                    AccessPoint = sNic;
+                    Client = dNic;
+                    IsWireless = true;
+                }
+                if(dNic.GetNicType == NicType.wport)
+                {
+                    AccessPoint = dNic;
+                    Client = sNic;
+                    IsWireless = true;
+                }
+                if(IsWireless && AccessPoint != null && Client != null)
+                {
+                    bool donesomething=false;
+                    if(AccessPoint.SSID != Client.SSID)
+                    {
+                        donesomething = true;
+                        Client.SSID = AccessPoint.SSID;
+                    }
+                    if (AccessPoint.WirelessKey != Client.WirelessKey)
+                    {
+                        donesomething = true;
+                        Client.WirelessKey = AccessPoint.WirelessKey;
+                    }
+                    if(donesomething)
+                    {
+                        MessageBox.Show("The SSID and Key have been updated on the client.");
+                    }
+                }
+            }
         }
 
         public NetworkLink(XmlNode theNode)
@@ -126,6 +167,39 @@ namespace EduNetworkBuilder
             return false;
         }
 
+        /// <summary>
+        /// Check that the link works.  If not, drop the link.  It usually only 
+        /// fails in wireless if the ssid and key do not match
+        /// </summary>
+        public bool VerifyLinkIntegrity()
+        {
+            Network myNet = NB.GetNetwork();
+            if (myNet == null) return false;
+            NetworkDevice sDev = myNet.GetDeviceFromID(SrcNic);
+            NetworkDevice dDev = myNet.GetDeviceFromID(DstNic);
+            if (sDev == null || dDev == null) return false;
+            NetworkCard sNic = sDev.NicFromID(SrcNic);
+            NetworkCard dNic = dDev.NicFromID(DstNic);
+            bool deleteme=false;
+            if (sNic != null && dNic != null)
+            {
+                if (sNic.GetNicType == NicType.wport || dNic.GetNicType == NicType.wport)
+                {
+                    if (sNic.WirelessKey != dNic.WirelessKey)
+                        deleteme = true;
+                    if (sNic.SSID != dNic.SSID)
+                        deleteme = true;
+                }
+            }
+            if (sNic.isWireless() != dNic.isWireless())
+                deleteme = true;
+            if(deleteme)
+            {
+                sDev.RemoveLinkTo(dDev.hostname); //this removes this link
+                return true;
+            }
+            return false;
+        }
 
         public override void Print(Image BaseImage, bool DrawTitle)
         {