public Binding(IdentityAssoc ia, DhcpLink dhcpLink) { this.origIa = ia; // save a reference to the original IA this.SetDhcpOptions(ia.GetDhcpOptions()); this.SetDuid(ia.GetDuid()); this.SetIaAddresses(ia.GetIaAddresses()); this.SetIaid(ia.GetIaid()); this.SetIatype(ia.GetIatype()); this.SetId(ia.GetId()); this.SetState(ia.GetState()); this.dhcpLink = dhcpLink; }
/// <summary> /// Checks if the duid-iatype-iaid tuple matches the given IA. /// </summary> /// <param name="duid">DUID</param> /// <param name="iatype">IA type</param> /// <param name="iaid">IAID</param> /// <param name="ia">IA</param> /// <returns>true, if is my ia</returns> protected bool IsMyIa(byte[] duid, byte iatype, long iaid, IdentityAssoc ia) { bool rc = false; if (duid != null) { if (Array.Equals(ia.GetDuid(), duid) && (ia.GetIatype() == iatype) && (ia.GetIaid() == iaid)) { rc = true; } } return(rc); }
/** * 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) { if (!clientLink.GetSubnet().Contains(iaAddr.GetIpAddress())) { log.Info("Ignoring off-link binding address: " + iaAddr.GetIpAddress().ToString()); continue; } V4BindingAddress bindingAddr = null; StaticBinding staticBinding = FindStaticBinding(clientLink.GetLink(), ia.GetDuid(), ia.GetIatype(), ia.GetIaid(), requestMsg); if (staticBinding != null) { bindingAddr = BuildV4StaticBindingFromIaAddr(iaAddr, staticBinding); } else { bindingAddr = BuildV4BindingAddressFromIaAddr(iaAddr, clientLink.GetLink(), 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"); } }
/** * 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> iaPrefs = ia.GetIaAddresses(); if ((iaPrefs != null) && iaPrefs.Count > 0) { List <IaAddress> bindingPrefixes = new List <IaAddress>(); foreach (IaAddress iaAddr in iaPrefs) { // off-link check needed only for v4? // if (!clientLink.getSubnet().contains(iaAddr.getIpAddress())) { // log.info("Ignoring off-link binding address: " + // iaAddr.getIpAddress().getHostAddress()); // continue; // } V6BindingPrefix bindingPrefix = null; StaticBinding staticBinding = FindStaticBinding(clientLink.GetLink(), ia.GetDuid(), ia.GetIatype(), ia.GetIaid(), requestMsg); if (staticBinding != null) { bindingPrefix = BuildV6BindingPrefixFromIaPrefix((IaPrefix)iaAddr, staticBinding); } else { bindingPrefix = BuildBindingAddrFromIaPrefix((IaPrefix)iaAddr, clientLink.GetLink(), requestMsg); } if (bindingPrefix != null) { bindingPrefixes.Add(bindingPrefix); } } // replace the collection of IaPrefixes with BindingPrefixes binding.SetIaAddresses(bindingPrefixes); } else { log.Warn("IA has no prefixes, binding is empty."); } return(binding); }