/// <summary>
/// rewriting the rules to make more sense NOTE the data flows in the direction of the arrow
/// so for this one we need to determine orientation of the device
/// we want to recurse up into the network from the connections and
/// see if we can find some control system devices if we can
/// then data should only flow out of the control system side of the data diode
/// if we find control systems components on both sides we should warn and have the user resolve it.
/// maybe we should popup a dialog to determine how to analyse the network
///
/// ie if this is classified then data should flow in
/// if this is control systems network it should flow out
/// </summary>
/// <param name="component"></param>
private void CheckRule7(NetworkComponent component)
{
if (component.IsUnidirectional)
{
//determine the zone type of the zone the unidirectional device
//is in if the zone is anything but classified information
//should flow from high to low
bool isHighToLow = true;
//if it is a classified zone it should flow from low to high
if (component.Zone != null)
{
if (component.Zone.ZoneType == "Classified")
{
//must flow from low to high
isHighToLow = false;
}
}
//else must flow from high to low
//look to see if the items connected are in the same zone
//if they are not then start moving out
//if items are not in my same zone
foreach (NetworkComponent link in component.Connections)
{
if (component.IsInSameZone(link))
{
continue;
}
bool isComponentConnectionValid = true;
UNIVERSAL_SAL_LEVEL componentSal = sals[component.Zone.SAL.ToLower()];
UNIVERSAL_SAL_LEVEL targetSal = sals[link.Zone.SAL.ToLower()];
if (isHighToLow)
{
isComponentConnectionValid = componentSal.Sal_Level_Order > targetSal.Sal_Level_Order;
}
else
{
isComponentConnectionValid = componentSal.Sal_Level_Order < targetSal.Sal_Level_Order;
}
String componentName = "unnamed";
if (!String.IsNullOrWhiteSpace(component.ComponentName))
{
componentName = component.ComponentName;
}
if (!isComponentConnectionValid)
{
String text = String.Format(rule7, componentName).Replace("\n", " ");
SetLineMessage(component, link, text);
}
}
}
}