/// <summary>
/// Update an existing static binding.
/// </summary>
/// <param name="binding">existing client binding</param>
/// <param name="clientLink">link for the client request message</param>
/// <param name="duid">DUID of the client</param>
/// <param name="iatype">IA type of the client request</param>
/// <param name="iaid">IAID of the client request</param>
/// <param name="staticBinding">static binding</param>
/// <param name="requestMsg">client request message</param>
/// <returns>updated Binding</returns>
protected Binding UpdateStaticBinding(Binding binding, DhcpLink clientLink,
byte[] duid, byte iatype, long iaid, StaticBinding staticBinding,
DhcpMessage requestMsg)
{
List <IaAddress> addIaAddresses = null;
List <IaAddress> updateIaAddresses = null;
List <IaAddress> delIaAddresses = null; // not used currently
if (staticBinding != null)
{
_log.Info("Updating static binding: " + binding);
HashSet <BindingObject> bindingObjs = binding.GetBindingObjects();
if ((bindingObjs != null) && bindingObjs.Count > 0)
{
foreach (BindingObject bindingObj in bindingObjs)
{
if (bindingObj.GetIpAddress().Equals(staticBinding.GetIpAddress()))
{
SetBindingObjectTimes(bindingObj,
staticBinding.GetPreferredLifetimeMs(),
staticBinding.GetPreferredLifetimeMs());
break;
}
//TODO: what about bindingObjs that do NOT match the static binding?
}
// the existing IaAddress binding objects will be updated
updateIaAddresses = binding.GetIaAddresses();
}
else
{
IPAddress inetAddr = staticBinding.GetInetAddress();
if (inetAddr != null)
{
BindingObject bindingObj = BuildStaticBindingObject(inetAddr, staticBinding);
bindingObjs = new HashSet <BindingObject>();
bindingObjs.Add(bindingObj);
binding.SetBindingObjects(bindingObjs);
// this new IaAddress binding object will be added
addIaAddresses = binding.GetIaAddresses();
}
}
}
else
{
_log.Error("StaticBindingObject is null");
}
binding.SetState(IaAddress.STATIC);
try
{
iaMgr.UpdateIA(binding, addIaAddresses, updateIaAddresses, delIaAddresses);
return(binding); // if we get here, it worked
}
catch (Exception ex)
{
_log.Error("Failed to update binding");
return(null);
}
}
/// <summary>
/// Create a binding in from a StaticBinding
/// </summary>
/// <param name="clientLink">link for the client request message</param>
/// <param name="duid">DUID of the client</param>
/// <param name="iatype">IA type of the client request</param>
/// <param name="iaid">IAID of the client request</param>
/// <param name="staticBinding">static binding</param>
/// <param name="requestMsg">client request message</param>
/// <returns>created Binding</returns>
protected Binding CreateStaticBinding(DhcpLink clientLink, byte[] duid, byte iatype, long iaid,
StaticBinding staticBinding, DhcpMessage requestMsg)
{
Binding binding = null;
if (staticBinding != null)
{
binding = BuildBinding(clientLink, duid, iatype, iaid, IaAddress.STATIC);
IPAddress inetAddr = staticBinding.GetInetAddress();
if (inetAddr != null)
{
IaAddress iaAddr = new IaAddress();
iaAddr.SetIpAddress(inetAddr);
iaAddr.SetState(IaAddress.STATIC);
V6BindingAddress bindingAddr = new V6BindingAddress(iaAddr, staticBinding);
SetBindingObjectTimes(bindingAddr,
staticBinding.GetPreferredLifetimeMs(),
staticBinding.GetPreferredLifetimeMs());
// TODO store the configured options in the persisted binding?
// bindingAddr.setDhcpOptions(bp.getDhcpOptions());
HashSet <BindingObject> bindingObjs = new HashSet <BindingObject>();
bindingObjs.Add(bindingAddr);
binding.SetBindingObjects(bindingObjs);
try
{
iaMgr.CreateIA(binding);
}
catch (Exception ex)
{
_log.Error("Failed to create persistent binding");
return(null);
}
}
else
{
_log.Error("Failed to build binding object(s)");
return(null);
}
}
else
{
_log.Error("StaticBinding object is null");
}
String bindingType = (iatype == IdentityAssoc.V4_TYPE) ? "discover" : "solicit";
if (binding != null)
{
_log.Info("Created static " + bindingType + " binding: " + binding.ToString());
}
else
{
_log.Warn("Failed to create static " + bindingType + " binding");
}
return(binding);
}
