private static uint HandleAddressOfferHook(IntPtr Packet, uint PacketSize, uint ControlCode, uint IpAddress, uint AltAddress, uint AddrType, uint LeaseTime, IntPtr Reserved, IntPtr PktContext)
{
var stopPropagation = false;
var packet = new DhcpServerPacket(Packet, (int)PacketSize);
var controlCode = (OfferAddressControlCodes)ControlCode;
var serverAddress = DhcpServerIpAddress.FromNative(IpAddress);
var leaseAddress = DhcpServerIpAddress.FromNative(AltAddress);
var addressType = (OfferAddressTypes)AddrType;
var leaseTime = new TimeSpan(LeaseTime * 10_000_000L);
foreach (var consumer in Consumers)
{
if (consumer.SupportFlags.HasFlag(CalloutConsumerSupportFlags.AddressOffer))
{
try
{
consumer.Proxy.AddressOffer(packet, controlCode, serverAddress, leaseAddress, addressType, leaseTime, ref stopPropagation);
}
catch (Win32Exception ex)
{
return((uint)ex.NativeErrorCode);
}
catch (Exception)
{
return(0x1U); //ERROR_INVALID_FUNCTION
}
if (stopPropagation)
{
return(ERROR_SUCCESS);
}
}
}
// chain
if (!stopPropagation && ChainTable.DhcpAddressOfferHook != null)
{
return(ChainTable.DhcpAddressOfferHook(Packet, PacketSize, ControlCode, IpAddress, AltAddress, AddrType, LeaseTime, Reserved, PktContext));
}
return(ERROR_SUCCESS);
}
private static uint HandleAddressDelHook(IntPtr Packet, uint PacketSize, uint ControlCode, uint IpAddress, uint AltAddress, IntPtr Reserved, IntPtr PktContext)
{
var stopPropagation = false;
var packet = new DhcpServerPacket(Packet, (int)PacketSize);
var controlCode = (AddressDeleteControlCodes)ControlCode;
var serverAddress = DhcpServerIpAddress.FromNative(IpAddress);
var leaseAddress = DhcpServerIpAddress.FromNative(AltAddress);
foreach (var consumer in Consumers)
{
if (consumer.SupportFlags.HasFlag(CalloutConsumerSupportFlags.AddressDelete))
{
try
{
consumer.Proxy.AddressDelete(packet, controlCode, serverAddress, leaseAddress, ref stopPropagation);
}
catch (Win32Exception ex)
{
return((uint)ex.NativeErrorCode);
}
catch (Exception)
{
return(0x1U); //ERROR_INVALID_FUNCTION
}
// stop propagation if instructed
if (stopPropagation)
{
return(ERROR_SUCCESS);
}
}
}
// chain
if (!stopPropagation && ChainTable.DhcpAddressDelHook != null)
{
return(ChainTable.DhcpAddressDelHook(Packet, PacketSize, ControlCode, IpAddress, AltAddress, Reserved, PktContext));
}
return(ERROR_SUCCESS);
}
private static uint HandleHandleOptionsHook(IntPtr Packet, uint PacketSize, IntPtr Reserved, IntPtr PktContext, IntPtr ServerOptions)
{
var stopPropagation = false;
var packet = new DhcpServerPacket(Packet, (int)PacketSize);
var serverOptions = new DhcpServerPacketOptions(ServerOptions);
foreach (var consumer in Consumers)
{
if (consumer.SupportFlags.HasFlag(CalloutConsumerSupportFlags.HandleOptions))
{
try
{
consumer.Proxy.HandleOptions(packet, serverOptions, ref stopPropagation);
}
catch (Win32Exception ex)
{
return((uint)ex.NativeErrorCode);
}
catch (Exception)
{
return(0x1U); //ERROR_INVALID_FUNCTION
}
// stop propagation if instructed
if (stopPropagation)
{
return(ERROR_SUCCESS);
}
}
}
// chain
if (!stopPropagation && ChainTable.DhcpHandleOptionsHook != null)
{
return(ChainTable.DhcpHandleOptionsHook(Packet, PacketSize, Reserved, PktContext, ServerOptions));
}
return(ERROR_SUCCESS);
}
