/**
* Build a BindingPrefix for the given InetAddress and Link.
*
* @param inetAddr the inet addr
* @param clientLink the client link
* @param requestMsg the request msg
*
* @return the binding address
*/
protected override BindingObject BuildBindingObject(IPAddress inetAddr,
DhcpLink clientLink, DhcpMessage requestMsg)
{
V6PrefixBindingPool bp =
(V6PrefixBindingPool)FindBindingPool(clientLink.GetLink(), inetAddr, requestMsg);
if (bp != null)
{
bp.SetUsed(inetAddr); // TODO check if this is necessary
IaPrefix iaPrefix = new IaPrefix();
iaPrefix.SetIpAddress(inetAddr);
iaPrefix.SetPrefixLength((short)bp.GetAllocPrefixLen());
V6BindingPrefix bindingPrefix = new V6BindingPrefix(iaPrefix, bp);
SetBindingObjectTimes(bindingPrefix,
bp.GetPreferredLifetimeMs(), bp.GetPreferredLifetimeMs());
// TODO store the configured options in the persisted binding?
// bindingPrefix.setDhcpOptions(bp.getDhcpOptions());
return(bindingPrefix);
}
else
{
log.Error("Failed to create BindingPrefix: No BindingPool found for IP=" +
inetAddr.ToString());
}
// MUST have a BindingPool, otherwise something's broke
return(null);
}
/**
* Build a BindingPrefix given an IaAddress loaded from the database
* and a static binding for the client request.
*
* @param iaPrefix
* @param staticBinding
* @return
*/
private V6BindingPrefix BuildV6BindingPrefixFromIaPrefix(IaPrefix iaPrefix,
StaticBinding staticBinding)
{
V6BindingPrefix bindingPrefix = new V6BindingPrefix(iaPrefix, staticBinding);
return(bindingPrefix);
}
/**
* Callback from the ExpireTimerTask started when the lease was granted.
* NOT CURRENTLY USED
*
* @param iaPrefix the ia prefix
*/
public void ExpireIaPrefix(IaPrefix iaPrefix)
{
try
{
if (DhcpServerPolicies.GlobalPolicyAsBoolean(
Property.BINDING_MANAGER_DELETE_OLD_BINDINGS))
{
log.Debug("Deleting expired prefix: " + iaPrefix.GetIpAddress());
iaMgr.DeleteIaPrefix(iaPrefix);
// free the prefix only if it is deleted from the db,
// otherwise, we will get a unique constraint violation
// if another client obtains this released prefix
FreeAddress(iaPrefix.GetIpAddress());
}
else
{
iaPrefix.SetStartTime(DateTime.Now);
iaPrefix.SetPreferredEndTime(DateTime.Now);
iaPrefix.SetValidEndTime(DateTime.Now);
iaPrefix.SetState(IaPrefix.EXPIRED);
log.Debug("Updating expired prefix: " + iaPrefix.GetIpAddress());
iaMgr.UpdateIaPrefix(iaPrefix);
}
}
catch (Exception ex)
{
log.Error("Failed to expire address");
}
}
/**
* Instantiates a new binding address.
*
* @param iaPrefix the ia addr
* @param configObj the config object
*/
public V6BindingPrefix(IaPrefix iaPrefix, DhcpConfigObject configObj)
{
// populate *this* IaPrefix from the given one
this.SetDhcpOptions(iaPrefix.GetDhcpOptions());
this.SetId(iaPrefix.GetId());
this.SetIdentityAssocId(iaPrefix.GetIdentityAssocId());
this.SetIpAddress(iaPrefix.GetIpAddress());
this.SetPreferredEndTime(iaPrefix.GetPreferredEndTime());
this.SetPrefixLength(iaPrefix.GetPrefixLength());
this.SetStartTime(iaPrefix.GetStartTime());
this.SetState(iaPrefix.GetState());
this.SetValidEndTime(iaPrefix.GetValidEndTime());
this.configObj = configObj;
}
public void DeclineIaPrefix(IaPrefix iaPrefix)
{
try
{
iaPrefix.SetStartTime(DateTime.Now);
iaPrefix.SetPreferredEndTime(DateTime.Now);
iaPrefix.SetValidEndTime(DateTime.Now);
iaPrefix.SetState(IaPrefix.DECLINED);
iaMgr.UpdateIaPrefix(iaPrefix);
}
catch (Exception ex)
{
log.Error("Failed to decline address");
}
}
/**
* Create a BindingPrefix given an IaPrefix loaded from the database.
*
* @param iaPrefix the ia prefix
* @param clientLink the client link
* @param requestMsg the request msg
*
* @return the binding address
*/
private V6BindingPrefix BuildBindingAddrFromIaPrefix(IaPrefix iaPrefix,
link clientLink, DhcpMessage requestMsg)
{
IPAddress inetAddr = iaPrefix.GetIpAddress();
BindingPool bp = FindBindingPool(clientLink, inetAddr, requestMsg);
if (bp != null)
{
// TODO store the configured options in the persisted binding?
// ipAddr.setDhcpOptions(bp.getDhcpOptions());
return(new V6BindingPrefix(iaPrefix, (V6PrefixBindingPool)bp));
}
else
{
log.Error("Failed to create BindingPrefix: No BindingPool found for IP=" +
inetAddr.ToString());
}
// MUST have a BindingPool, otherwise something's broke
return(null);
}
