/** * Build a BindingAddress for the given InetAddress and DhcpLink. * * @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) { V6AddressBindingPool bp = (V6AddressBindingPool)FindBindingPool(clientLink.GetLink(), inetAddr, requestMsg); if (bp != null) { bp.SetUsed(inetAddr); // TODO check if this is necessary IaAddress iaAddr = new IaAddress(); iaAddr.SetIpAddress(inetAddr); V6BindingAddress bindingAddr = new V6BindingAddress(iaAddr, bp); SetBindingObjectTimes(bindingAddr, bp.GetPreferredLifetimeMs(), bp.GetPreferredLifetimeMs()); // TODO store the configured options in the persisted binding? // bindingAddr.setDhcpOptions(bp.getDhcpOptions()); return(bindingAddr); } else { log.Error("Failed to create BindingAddress: No BindingPool found for IP=" + inetAddr.ToString()); } // MUST have a BindingPool, otherwise something's broke return(null); }
/** * Build a V6BindingAddress given an IaAddress loaded from the database * and a static binding for the client request. * * @param iaAddr * @param staticBinding * @return */ private V6BindingAddress BuildV6StaticBindingFromIaAddr(IaAddress iaAddr, StaticBinding staticBinding) { V6BindingAddress bindingAddr = new V6BindingAddress(iaAddr, staticBinding); return(bindingAddr); }
/// <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); }
/// <summary> /// Build a BindingObject from a static binding. Because the StaticBinding /// implements the DhcpConfigObject interface, it can be used directly in /// creating the BindingObject, unlike buildBindingObject above which is /// abstract because each implementation must lookup the object in that /// binding manager's map of binding pools. /// </summary> /// <param name="inetAddr">IP address for this binding object</param> /// <param name="staticBinding">static binding</param> /// <returns>binding object</returns> protected BindingObject BuildStaticBindingObject(IPAddress inetAddr, PIXIS.DHCP.Request.Bind.StaticBinding staticBinding) { IaAddress iaAddr = new IaAddress(); iaAddr.SetIpAddress(inetAddr); V6BindingAddress bindingAddr = new V6BindingAddress(iaAddr, staticBinding); SetBindingObjectTimes(bindingAddr, staticBinding.GetPreferredLifetimeMs(), staticBinding.GetPreferredLifetimeMs()); return(bindingAddr); }
/** * Create a Binding given an IdentityAssoc loaded from the database. * * @param ia the ia * @param clientLink the client link * @param requestMsg the request msg * * @return the binding */ protected override Binding BuildBindingFromIa(IdentityAssoc ia, DhcpLink clientLink, DhcpMessage requestMsg) { Binding binding = new Binding(ia, clientLink); List <IaAddress> iaAddrs = ia.GetIaAddresses(); if ((iaAddrs != null) && iaAddrs.Count > 0) { List <IaAddress> bindingAddrs = new List <IaAddress>(); foreach (IaAddress iaAddr in iaAddrs) { // off-link check needed only for v4? // if (!clientLink.getSubnet().contains(iaAddr.getIpAddress())) { // log.info("Ignoring off-link binding address: " + // iaAddr.getIpAddress().getHostAddress()); // continue; // } V6BindingAddress bindingAddr = null; StaticBinding staticBinding = FindStaticBinding(clientLink.GetLink(), ia.GetDuid(), ia.GetIatype(), ia.GetIaid(), requestMsg); if (staticBinding != null) { bindingAddr = BuildV6StaticBindingFromIaAddr(iaAddr, staticBinding); } else { bindingAddr = BuildV6BindingAddressFromIaAddr(iaAddr, clientLink, requestMsg); } if (bindingAddr != null) { bindingAddrs.Add(bindingAddr); } } // replace the collection of IaAddresses with BindingAddresses binding.SetIaAddresses(bindingAddrs); } else { log.Warn("IA has no addresses, binding is empty."); } return(binding); }
/** * Perform the DDNS delete processing when a lease is released or expired. * * @param ia the IdentityAssoc of the client * @param iaAddr the released or expired IaAddress */ protected override void DdnsDelete(IdentityAssoc ia, IaAddress iaAddr) { DhcpV6ClientFqdnOption clientFqdnOption = null; try { if ((ia != null) && (iaAddr != null)) { List <DhcpOption> opts = iaAddr.GetDhcpOptions(); if (opts != null) { foreach (DhcpOption opt in opts) { if (opt.GetCode() == DhcpConstants.V6OPTION_CLIENT_FQDN) { clientFqdnOption = new DhcpV6ClientFqdnOption(); //clientFqdnOption.Decode(ByteBuffer.Wrap(opt.GetValue())); break; } } } if (clientFqdnOption != null) { string fqdn = clientFqdnOption.GetDomainName(); if (!String.IsNullOrEmpty(fqdn)) { DhcpLink link = serverConfig.FindLinkForAddress(iaAddr.GetIpAddress()); if (link != null) { V6BindingAddress bindingAddr = null; StaticBinding staticBinding = FindStaticBinding(link.GetLink(), ia.GetDuid(), ia.GetIatype(), ia.GetIaid(), null); if (staticBinding != null) { bindingAddr = BuildV6StaticBindingFromIaAddr(iaAddr, staticBinding); } else { bindingAddr = BuildV6BindingAddressFromIaAddr(iaAddr, link, null); // safe to send null requestMsg } if (bindingAddr != null) { DdnsCallback ddnsComplete = new DhcpV6DdnsComplete(bindingAddr, clientFqdnOption); DhcpConfigObject configObj = bindingAddr.GetConfigObj(); DdnsUpdater ddns = new DdnsUpdater(link.GetLink(), configObj, bindingAddr.GetIpAddress(), fqdn, ia.GetDuid(), configObj.GetValidLifetime(), clientFqdnOption.GetUpdateAaaaBit(), true, ddnsComplete); ddns.ProcessUpdates(); } else { log.Error("Failed to find binding for address: " + iaAddr.GetIpAddress().ToString()); } } else { log.Error("Failed to find link for binding address: " + iaAddr.GetIpAddress().ToString()); } } else { log.Error("FQDN is null or empty. No DDNS deletes performed."); } } else { log.Warn("No Client FQDN option in current binding. No DDNS deletes performed."); } } } catch (Exception ex) { log.Error("Failed to perform DDNS delete"); } }