private void IP_FIB_AddButton_Click(object sender, RoutedEventArgs e)
{
var routerName = IP_FIB_RouterName.Text;
var destAddress = IP_FIB_DestAddress.Text;
var outPort = IP_FIB_OutPort.Text;
if (routerName.Length == 0 || destAddress.Length == 0 || outPort.Length == 0)
{
return;
}
var isProperRule = CheckIfIsProperIP_FIB_Entry(destAddress, outPort);
if (!isProperRule || !Manager.RouterNameToIP_FIB_Table.ContainsKey(routerName))
{
AddLog("You are trying to add an incorrect rule!", LogType.Error);
return;
}
var foundRow = IP_FIB_Rows.Find(x => x.RouterName.Equals(routerName) &&
x.DestAddress.Equals(IPAddress.Parse(destAddress)));
if (foundRow != null)
{
AddLog("Output port for such destination address already exists!", LogType.Error);
return;
}
var rule = new IpFibTableRow(destAddress + " " + outPort);
rule.RouterName = routerName;
Manager.RouterNameToIP_FIB_Table[routerName].Add(rule);
IP_FIB_Rows.Add(rule);
Manager.SendRow(routerName, rule, ManagementActions.ADD_IP_FIB_ENTRY);
SortIpFibRows();
IP_FIB_Table.Items.Refresh();
IP_FIB_RouterName.Clear();
IP_FIB_DestAddress.Clear();
IP_FIB_OutPort.Clear();
IP_FIB_RouterName.Focus();
}
private void IP_FIB_DeleteButton_Click(object sender, RoutedEventArgs e)
{
int index = IP_FIB_Table.SelectedIndex;
if (index == -1) // selected empty entry
{
return;
}
var selectedEntry = IP_FIB_Table.SelectedItems[0] as IpFibTableRow;
var routerName = selectedEntry.RouterName;
var destAddress = selectedEntry.DestAddress;
var outPort = selectedEntry.OutPort;
if (Manager.RouterNameToIP_FIB_Table.ContainsKey(routerName))
{
try
{
// remove item from the list that is binded to GUI's listView
var foundRow = IP_FIB_Rows.Find(x => x.RouterName.Equals(routerName) &&
x.DestAddress.Equals(destAddress) && x.OutPort.Equals(outPort));
Manager.SendRow(routerName, foundRow, ManagementActions.REMOVE_IP_FIB_ENTRY);
IP_FIB_Rows.Remove(foundRow);
// remove item from the list that is in dictionary
var item = Manager.RouterNameToIP_FIB_Table[routerName].Find(x => x.RouterName.Equals(routerName) &&
x.DestAddress.Equals(destAddress) && x.OutPort.Equals(outPort));
Manager.RouterNameToIP_FIB_Table[routerName].Remove(item);
IP_FIB_Table.Items.Refresh();
}
catch (Exception)
{
AddLog($"Router {routerName} is not connected to MS!\n", LogType.Error);
}
}
else
{
AddLog("Network topology does not contain such router!\n", LogType.Error);
}
}