public bool AddrOnLink(DhcpV4RequestedIpAddressOption requestedIpOption, DhcpLink clientLink)
{
bool onLink = true;
if (requestedIpOption != null)
{
IPAddress requestedIp = IPAddress.Parse(requestedIpOption.GetIpAddress());
if (!clientLink.GetSubnet().Contains(requestedIp))
{
onLink = false;
}
}
return(onLink);
}
/**
* Get the Requested IP addresses from the client message, if any was provided.
*
* @param requestMsg the request msg
*
* @return a list of InetAddresses containing the requested IP, or null if none requested or
* if the requested IP is bogus
*/
private List <IPAddress> GetInetAddrs(DhcpMessage requestMsg)
{
List <IPAddress> inetAddrs = new List <IPAddress>();
DhcpV4RequestedIpAddressOption reqIpOption = (DhcpV4RequestedIpAddressOption)
requestMsg.GetDhcpOption(DhcpConstants.V4OPTION_REQUESTED_IP);
if (reqIpOption != null)
{
IPAddress inetAddr =
IPAddress.Parse(reqIpOption.GetIpAddress());
inetAddrs = new List <IPAddress>();
inetAddrs.Add(inetAddr);
}
return(inetAddrs);
}
public override bool Process()
{
byte[] chAddr = _requestMsg.GetChAddr();
V4AddrBindingManager bindingMgr = _dhcpServerConfig.GetV4AddrBindingMgr();
if (bindingMgr != null)
{
log.Info("Processing Decline" + " from chAddr=" + Util.ToHexString(chAddr) + " requestedIp=" + requestedIpAddrOption.GetIpAddress());
Binding binding = bindingMgr.FindCurrentBinding(_clientLink, chAddr, _requestMsg);
if (binding != null)
{
HashSet <BindingObject> bindingObjs = binding.GetBindingObjects();
if ((bindingObjs != null) && bindingObjs.Count != 0)
{
V4BindingAddress bindingAddr = (V4BindingAddress)bindingObjs.First();
bindingMgr.DeclineIaAddress(binding, bindingAddr);
}
else
{
log.Error("No binding addresses in binding for client: " + Util.ToHexString(chAddr));
}
}
else
{
log.Error("No Binding available for client: " + Util.ToHexString(chAddr));
}
}
else
{
log.Error("Unable to process V4 Decline:" + " No V4AddrBindingManager available");
}
return(false); // no reply for v4 decline
}