private void CleanPool(DhcpPool pool, DhcpAddressPool addressPool)
{
var now = DateTimeOffset.Now;
var timeoutDeadline = now.Add(pool.RequestTimeOut);
// TODO : Find better way to clean
List <Lease> leasesToClean;
try
{
leasesToClean = Leases
.Where(x =>
x.Pool == pool &&
(
(
x.Acknowledged == null &&
x.TimesOut < now
) ||
(
x.Expires < now
)
)
).ToList();
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Failed to scan leases for leases to clean : " + e.Message);
return;
}
foreach (var lease in leasesToClean)
{
try
{
addressPool.SetAvailable(lease.Address);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Failed to set " + lease.Address.ToString() + " as available : " + e.Message);
return;
}
try
{
Leases.Remove(lease);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Failed to remove " + lease.Address.ToString() + " from leases : " + e.Message);
return;
}
}
}
public void ModifyPool(
NetworkPrefix network,
List <IPAddress> gateways,
IPRanges exclusions,
string domainName,
string bootFile,
List <IPAddress> dnsServers,
IPAddress tftpServer
)
{
lock (this)
{
var addressPool = AddressPools.Where(x => x.Pool.Network.Equals(network)).FirstOrDefault();
if (addressPool == null)
{
var dhcpPool = GetPoolByPrefix(network);
if (dhcpPool == null)
{
return;
}
addressPool = new DhcpAddressPool(dhcpPool);
AddressPools.Add(addressPool);
}
var pool = addressPool.Pool;
pool.DefaultGateways = gateways
.Select(x =>
x
)
.ToList();
var exclusionChanges = new ExclusionChanges(pool.Network, pool.Exclusions, exclusions);
var leasesToKill = Leases
.Where(x =>
exclusionChanges.ToExclude.Contains(x.Address)
)
.ToList();
foreach (var leaseToKill in leasesToKill)
{
addressPool.SetAvailable(leaseToKill.Address);
Leases.Remove(leaseToKill);
}
var toExclude = exclusionChanges.ToExclude.Clone();
toExclude.Remove(pool.Network.BaseNetwork.Network);
toExclude.Remove(pool.Network.Broadcast);
addressPool.UnsetAvailable(toExclude);
var toUnexclude = exclusionChanges.ToUnexclude.Clone();
toUnexclude.Remove(pool.Network.BaseNetwork.Network);
toUnexclude.Remove(pool.Network.Broadcast);
addressPool.SetAvailable(toUnexclude);
pool.Exclusions = exclusions.Clone();
pool.PoolOptions.DomainName = domainName;
pool.PoolOptions.BootFile = bootFile;
pool.PoolOptions.TFTPServers = new List <string> {
tftpServer.ToString()
};
pool.PoolOptions.DNSServers = dnsServers
.Select(x =>
x
)
.ToList();
}
}
