Examples with LoopbackInterfaceConfigImpl org.eclipse.kura.core.net.LoopbackInterfaceConfigImpl used on opensource projects

Example 1 with LoopbackInterfaceConfigImpl

use of org.eclipse.kura.core.net.LoopbackInterfaceConfigImpl in project kura by eclipse.

the class GenericNetworkInterface method getCurrentConfig.

protected static NetInterfaceConfig<?> getCurrentConfig(String interfaceName, NetInterfaceType type, NetInterfaceStatus status, boolean dhcpServerEnabled, boolean passDns, Properties kuraProps) throws KuraException {
    try {
        NetInterfaceConfig<?> netInterfaceConfig = null;
        boolean autoConnect = false;
        int mtu = -1;
        boolean dhcp = false;
        IP4Address address = null;
        String ipAddress = null;
        String prefixString = null;
        String netmask = null;
        String gateway = null;
        boolean interfaceEnabled = false;
        if (kuraProps != null) {
            String onBoot = kuraProps.getProperty("ONBOOT");
            if ("yes".equals(onBoot)) {
                autoConnect = true;
                // we are enabled - just not sure if for LAN or WAN
                if (status == NetInterfaceStatus.netIPv4StatusUnknown) {
                    interfaceEnabled = true;
                }
            } else {
                autoConnect = false;
            }
            // override MTU with what is in config if it is present
            String stringMtu = kuraProps.getProperty("MTU");
            if (stringMtu == null) {
                try {
                    mtu = LinuxNetworkUtil.getCurrentMtu(interfaceName);
                } catch (KuraException e) {
                    // just assume ???
                    if (interfaceName.equals("lo")) {
                        mtu = 16436;
                    } else {
                        mtu = 1500;
                    }
                }
            } else {
                mtu = Short.parseShort(stringMtu);
            }
            // get the bootproto
            String bootproto = kuraProps.getProperty("BOOTPROTO");
            if (bootproto == null) {
                bootproto = "static";
            }
            // get the defroute
            String defroute = kuraProps.getProperty("DEFROUTE");
            if (defroute == null) {
                defroute = "no";
            }
            if (interfaceEnabled) {
                if (defroute.equals("yes")) {
                    status = NetInterfaceStatus.netIPv4StatusEnabledWAN;
                } else {
                    status = NetInterfaceStatus.netIPv4StatusEnabledLAN;
                }
            }
            // check for dhcp or static configuration
            try {
                ipAddress = kuraProps.getProperty("IPADDR");
                prefixString = kuraProps.getProperty("PREFIX");
                netmask = kuraProps.getProperty("NETMASK");
                kuraProps.getProperty("BROADCAST");
                try {
                    gateway = kuraProps.getProperty("GATEWAY");
                    s_logger.debug("got gateway for {}: {}", interfaceName, gateway);
                } catch (Exception e) {
                    s_logger.warn("missing gateway stanza for " + interfaceName);
                }
                if (bootproto.equals("dhcp")) {
                    s_logger.debug("currently set for DHCP");
                    dhcp = true;
                    ipAddress = null;
                    netmask = null;
                } else {
                    s_logger.debug("currently set for static address");
                    dhcp = false;
                }
            } catch (Exception e) {
                e.printStackTrace();
                throw new KuraException(KuraErrorCode.INTERNAL_ERROR, "malformatted config file: " + NET_CONFIGURATION_DIRECTORY + "ifcfg-" + interfaceName);
            }
            if (ipAddress != null && !ipAddress.isEmpty()) {
                address = (IP4Address) IPAddress.parseHostAddress(ipAddress);
            }
            // make sure at least prefix or netmask is present if static
            if (!dhcp && prefixString == null && netmask == null) {
                throw new KuraException(KuraErrorCode.INTERNAL_ERROR, "malformatted config file: " + NET_CONFIGURATION_DIRECTORY + "ifcfg-" + interfaceName + " must contain NETMASK and/or PREFIX");
            }
        }
        ConnectionInfo conInfo = new ConnectionInfoImpl(interfaceName);
        LinuxDns dnsService = LinuxDns.getInstance();
        // note - we only add the fields we need/care about from a configuration standpoint
        if (type == NetInterfaceType.LOOPBACK) {
            s_logger.debug("Adding a Loopback interface");
            netInterfaceConfig = new LoopbackInterfaceConfigImpl(interfaceName);
            ((LoopbackInterfaceImpl<?>) netInterfaceConfig).setMTU(mtu);
            // loopback autoConnect
            ((LoopbackInterfaceImpl<?>) netInterfaceConfig).setAutoConnect(true);
            // should always be true?
            ((LoopbackInterfaceImpl<?>) netInterfaceConfig).setLoopback(true);
            List<NetInterfaceAddressConfig> netInterfaceAddressConfigs = new ArrayList<NetInterfaceAddressConfig>();
            List<NetInterfaceAddress> netInterfaceAddresses = new ArrayList<NetInterfaceAddress>();
            NetInterfaceAddressConfigImpl netInterfaceAddressConfig = new NetInterfaceAddressConfigImpl();
            netInterfaceAddressConfigs.add(netInterfaceAddressConfig);
            netInterfaceAddresses.add(netInterfaceAddressConfig);
            LinuxIfconfig ifconfig = LinuxNetworkUtil.getInterfaceConfiguration(interfaceName);
            if (ifconfig != null && ifconfig.isUp()) {
                netInterfaceAddressConfig.setAddress(IPAddress.parseHostAddress(ifconfig.getInetAddress()));
                netInterfaceAddressConfig.setBroadcast(IPAddress.parseHostAddress(ifconfig.getInetBcast()));
                netInterfaceAddressConfig.setNetmask(IPAddress.parseHostAddress(ifconfig.getInetMask()));
                netInterfaceAddressConfig.setNetworkPrefixLength(NetworkUtil.getNetmaskShortForm(ifconfig.getInetMask()));
                netInterfaceAddressConfig.setGateway(conInfo.getGateway());
                if (dhcp) {
                    netInterfaceAddressConfig.setDnsServers(dnsService.getDhcpDnsServers(interfaceName, netInterfaceAddressConfig.getAddress()));
                } else {
                    netInterfaceAddressConfig.setDnsServers(conInfo.getDnsServers());
                }
            }
            ((LoopbackInterfaceConfigImpl) netInterfaceConfig).setNetInterfaceAddresses(netInterfaceAddressConfigs);
            List<NetConfig> netConfigs = new ArrayList<NetConfig>();
            netInterfaceAddressConfig.setNetConfigs(netConfigs);
            // FIXME - hardcoded
            NetConfig netConfig = new NetConfigIP4(NetInterfaceStatus.netIPv4StatusEnabledLAN, true);
            ((NetConfigIP4) netConfig).setAddress(address);
            ((NetConfigIP4) netConfig).setDhcp(dhcp);
            ((NetConfigIP4) netConfig).setDnsServers(null);
            ((NetConfigIP4) netConfig).setDomains(null);
            ((NetConfigIP4) netConfig).setGateway(null);
            ((NetConfigIP4) netConfig).setNetworkPrefixLength((short) 8);
            ((NetConfigIP4) netConfig).setSubnetMask((IP4Address) IPAddress.parseHostAddress("255.0.0.0"));
            ((NetConfigIP4) netConfig).setWinsServers(null);
            netConfigs.add(netConfig);
        } else if (type == NetInterfaceType.ETHERNET) {
            s_logger.debug("Adding an Ethernet interface - {}", interfaceName);
            netInterfaceConfig = new EthernetInterfaceConfigImpl(interfaceName);
            ((EthernetInterfaceImpl<?>) netInterfaceConfig).setMTU(mtu);
            ((EthernetInterfaceImpl<?>) netInterfaceConfig).setAutoConnect(autoConnect);
            ((EthernetInterfaceImpl<?>) netInterfaceConfig).setLoopback(false);
            List<NetInterfaceAddressConfig> netInterfaceAddressConfigs = new ArrayList<NetInterfaceAddressConfig>();
            List<NetInterfaceAddress> netInterfaceAddresses = new ArrayList<NetInterfaceAddress>();
            NetInterfaceAddressConfigImpl netInterfaceAddressConfig = new NetInterfaceAddressConfigImpl();
            netInterfaceAddressConfigs.add(netInterfaceAddressConfig);
            netInterfaceAddresses.add(netInterfaceAddressConfig);
            LinuxIfconfig ifconfig = LinuxNetworkUtil.getInterfaceConfiguration(interfaceName);
            if (ifconfig != null) {
                ((EthernetInterfaceImpl<?>) netInterfaceConfig).setHardwareAddress(ifconfig.getMacAddressBytes());
                if (ifconfig.isUp()) {
                    try {
                        netInterfaceAddressConfig.setAddress(IPAddress.parseHostAddress(ifconfig.getInetAddress()));
                        netInterfaceAddressConfig.setBroadcast(IPAddress.parseHostAddress(ifconfig.getInetBcast()));
                        netInterfaceAddressConfig.setNetmask(IPAddress.parseHostAddress(ifconfig.getInetMask()));
                        netInterfaceAddressConfig.setNetworkPrefixLength(NetworkUtil.getNetmaskShortForm(ifconfig.getInetMask()));
                        netInterfaceAddressConfig.setGateway(conInfo.getGateway());
                        if (dhcp) {
                            netInterfaceAddressConfig.setDnsServers(dnsService.getDhcpDnsServers(interfaceName, netInterfaceAddressConfig.getAddress()));
                        } else {
                            netInterfaceAddressConfig.setDnsServers(conInfo.getDnsServers());
                        }
                    } catch (KuraException e) {
                        s_logger.warn("The interface went down " + interfaceName + " not including current state in status because it is not up");
                        netInterfaceAddressConfig.setAddress(null);
                        netInterfaceAddressConfig.setBroadcast(null);
                        netInterfaceAddressConfig.setNetmask(null);
                        netInterfaceAddressConfig.setNetworkPrefixLength((short) -1);
                        netInterfaceAddressConfig.setGateway(null);
                        netInterfaceAddressConfig.setDnsServers(null);
                    }
                }
            }
            ((EthernetInterfaceConfigImpl) netInterfaceConfig).setNetInterfaceAddresses(netInterfaceAddressConfigs);
            // add the config
            List<NetConfig> netConfigs = new ArrayList<NetConfig>();
            netInterfaceAddressConfig.setNetConfigs(netConfigs);
            NetConfigIP4 netConfig = new NetConfigIP4(NetInterfaceStatus.netIPv4StatusDisabled, autoConnect);
            setNetConfigIP4(netConfig, status, autoConnect, dhcp, address, gateway, prefixString, netmask, kuraProps);
            netConfigs.add(netConfig);
            if (dhcpServerEnabled) {
                // add DHCP server configuration to the list
                DhcpServerImpl dhcpServer = DhcpServerFactory.getInstance(interfaceName, dhcpServerEnabled, passDns);
                DhcpServerConfig4 dhcpServerConfig = dhcpServer.getDhcpServerConfig(dhcpServerEnabled, passDns);
                if (dhcpServerConfig != null) {
                    netConfigs.add(dhcpServerConfig);
                }
            }
        } else if (type == NetInterfaceType.WIFI) {
            s_logger.debug("Adding a Wireless interface - {}", interfaceName);
            WifiInterfaceConfigImpl wifiInterfaceConfig = new WifiInterfaceConfigImpl(interfaceName);
            netInterfaceConfig = wifiInterfaceConfig;
            wifiInterfaceConfig.setMTU(mtu);
            wifiInterfaceConfig.setAutoConnect(autoConnect);
            wifiInterfaceConfig.setLoopback(false);
            List<WifiInterfaceAddressConfig> wifiInterfaceAddressConfigs = new ArrayList<WifiInterfaceAddressConfig>();
            List<WifiInterfaceAddress> wifiInterfaceAddresses = new ArrayList<WifiInterfaceAddress>();
            WifiInterfaceAddressConfigImpl wifiInterfaceAddressConfig = new WifiInterfaceAddressConfigImpl();
            wifiInterfaceAddressConfigs.add(wifiInterfaceAddressConfig);
            wifiInterfaceAddresses.add(wifiInterfaceAddressConfig);
            String currentSSID = LinuxNetworkUtil.getSSID(interfaceName);
            LinuxIfconfig ifconfig = LinuxNetworkUtil.getInterfaceConfiguration(interfaceName);
            if (ifconfig != null) {
                wifiInterfaceConfig.setHardwareAddress(ifconfig.getMacAddressBytes());
                if (ifconfig.isUp()) {
                    wifiInterfaceAddressConfig.setAddress(IPAddress.parseHostAddress(ifconfig.getInetAddress()));
                    wifiInterfaceAddressConfig.setBroadcast(IPAddress.parseHostAddress(ifconfig.getInetBcast()));
                    String currentNetmask = ifconfig.getInetMask();
                    if (currentNetmask != null) {
                        wifiInterfaceAddressConfig.setNetmask(IPAddress.parseHostAddress(currentNetmask));
                        wifiInterfaceAddressConfig.setNetworkPrefixLength(NetworkUtil.getNetmaskShortForm(currentNetmask));
                    }
                    wifiInterfaceAddressConfig.setBitrate(LinuxNetworkUtil.getWifiBitrate(interfaceName));
                    wifiInterfaceAddressConfig.setGateway(conInfo.getGateway());
                    if (dhcp) {
                        wifiInterfaceAddressConfig.setDnsServers(dnsService.getDhcpDnsServers(interfaceName, wifiInterfaceAddressConfig.getAddress()));
                    } else {
                        wifiInterfaceAddressConfig.setDnsServers(conInfo.getDnsServers());
                    }
                    WifiAccessPointImpl ap = null;
                    if (currentSSID != null) {
                        s_logger.debug("Adding access point SSID: {}", currentSSID);
                        ap = new WifiAccessPointImpl(currentSSID);
                        // TODO: fill in other info
                        ap.setMode(WifiMode.INFRA);
                        List<Long> bitrate = new ArrayList<Long>();
                        bitrate.add(54000000L);
                        ap.setBitrate(bitrate);
                        ap.setFrequency(12345);
                        ap.setHardwareAddress("20AA4B8A6442".getBytes());
                        ap.setRsnSecurity(EnumSet.allOf(WifiSecurity.class));
                        ap.setStrength(1234);
                        ap.setWpaSecurity(EnumSet.allOf(WifiSecurity.class));
                    }
                    wifiInterfaceAddressConfig.setWifiAccessPoint(ap);
                }
            }
            // mode
            WifiMode wifiMode = WifiMode.UNKNOWN;
            s_logger.debug("Get WifiMode...");
            try {
                // get from config file
                String mode = kuraProps.getProperty("MODE");
                if (mode != null) {
                    s_logger.debug("Getting wifi mode from {}", kuraFile.getAbsolutePath());
                    if (mode.equalsIgnoreCase("Managed")) {
                        wifiMode = WifiMode.INFRA;
                    } else if (mode.equalsIgnoreCase("Master")) {
                        wifiMode = WifiMode.MASTER;
                    } else if (mode.equalsIgnoreCase("Ad-Hoc")) {
                        wifiMode = WifiMode.ADHOC;
                    } else {
                        wifiMode = WifiMode.valueOf(mode);
                    }
                } else {
                    // get current setting using iwconfig
                    s_logger.debug("Getting wifi mode from iwconfig");
                    wifiMode = LinuxNetworkUtil.getWifiMode(interfaceName);
                }
            } catch (Exception e) {
            // leave as unknown
            }
            s_logger.debug("Current WifiMode: {}", wifiMode);
            wifiInterfaceAddressConfig.setMode(wifiMode);
            wifiInterfaceConfig.setNetInterfaceAddresses(wifiInterfaceAddressConfigs);
            // TODO: fix
            wifiInterfaceConfig.setCapabilities(EnumSet.allOf(Capability.class));
            // add the configs - one for client (managed) mode, one for access point (master) mode
            List<NetConfig> netConfigs = new ArrayList<NetConfig>();
            wifiInterfaceAddressConfig.setNetConfigs(netConfigs);
            // get the NetConfig
            NetConfigIP4 netConfig = new NetConfigIP4(NetInterfaceStatus.netIPv4StatusDisabled, autoConnect);
            setNetConfigIP4(netConfig, status, autoConnect, dhcp, address, gateway, prefixString, netmask, kuraProps);
            netConfigs.add(netConfig);
            // get the wpa_supplicant configuration
            WifiConfig wifiClientConfig = new WifiConfig();
            setWifiClientConfig(interfaceName, wifiClientConfig, wifiMode);
            // get the hostapd configuration
            WifiConfig wifiAPConfig = new WifiConfig();
            setWifiAccessPointConfig(wifiAPConfig);
            // add WiFi configurations to the list
            netConfigs.add(wifiClientConfig);
            netConfigs.add(wifiAPConfig);
            if (dhcpServerEnabled) {
                // add DHCP server configuration to the list
                DhcpServerImpl dhcpServer = DhcpServerFactory.getInstance(interfaceName, dhcpServerEnabled, passDns);
                DhcpServerConfig4 dhcpServerConfig = dhcpServer.getDhcpServerConfig(dhcpServerEnabled, passDns);
                if (dhcpServerConfig != null) {
                    netConfigs.add(dhcpServerConfig);
                }
            }
        } else if (type == NetInterfaceType.MODEM) {
            s_logger.debug("Adding a Modem interface");
            netInterfaceConfig = new ModemInterfaceConfigImpl(interfaceName);
            ((ModemInterfaceConfigImpl) netInterfaceConfig).setMTU(mtu);
            ((ModemInterfaceConfigImpl) netInterfaceConfig).setAutoConnect(autoConnect);
            ((ModemInterfaceConfigImpl) netInterfaceConfig).setLoopback(false);
            ((ModemInterfaceConfigImpl) netInterfaceConfig).setPointToPoint(true);
            List<ModemInterfaceAddressConfig> modemInterfaceAddressConfigs = new ArrayList<ModemInterfaceAddressConfig>();
            List<ModemInterfaceAddress> netInterfaceAddresses = new ArrayList<ModemInterfaceAddress>();
            ModemInterfaceAddressConfigImpl netInterfaceAddressConfig = new ModemInterfaceAddressConfigImpl();
            modemInterfaceAddressConfigs.add(netInterfaceAddressConfig);
            netInterfaceAddresses.add(netInterfaceAddressConfig);
            LinuxIfconfig ifconfig = LinuxNetworkUtil.getInterfaceConfiguration(interfaceName);
            if (ifconfig != null) {
                ((ModemInterfaceConfigImpl) netInterfaceConfig).setHardwareAddress(ifconfig.getMacAddressBytes());
                if (ifconfig.isUp()) {
                    netInterfaceAddressConfig.setAddress(IPAddress.parseHostAddress(ifconfig.getInetAddress()));
                    netInterfaceAddressConfig.setBroadcast(IPAddress.parseHostAddress(ifconfig.getInetBcast()));
                    netInterfaceAddressConfig.setNetmask(IPAddress.parseHostAddress(ifconfig.getInetMask()));
                    netInterfaceAddressConfig.setNetworkPrefixLength(NetworkUtil.getNetmaskShortForm(ifconfig.getInetMask()));
                    netInterfaceAddressConfig.setGateway(conInfo.getGateway());
                    netInterfaceAddressConfig.setDnsServers(conInfo.getDnsServers());
                }
            }
            ((ModemInterfaceConfigImpl) netInterfaceConfig).setNetInterfaceAddresses(modemInterfaceAddressConfigs);
            // add the config
            List<NetConfig> netConfigs = new ArrayList<NetConfig>();
            netInterfaceAddressConfig.setNetConfigs(netConfigs);
            NetConfigIP4 netConfig = new NetConfigIP4(NetInterfaceStatus.netIPv4StatusDisabled, autoConnect);
            setNetConfigIP4(netConfig, status, autoConnect, dhcp, address, gateway, prefixString, netmask, kuraProps);
            netConfigs.add(netConfig);
        } else {
            s_logger.warn("Unsupported Type: " + type);
        }
        return netInterfaceConfig;
    } catch (UnknownHostException e) {
        throw new KuraException(KuraErrorCode.INTERNAL_ERROR, e);
    }
}

Example 2 with LoopbackInterfaceConfigImpl

use of org.eclipse.kura.core.net.LoopbackInterfaceConfigImpl in project kura by eclipse.

the class NetworkConfigurationServiceImpl method getNetworkConfiguration.

// @Override
// FIXME:MC Introducing a short lived cache will make startup much faster.
@Override
public synchronized NetworkConfiguration getNetworkConfiguration() throws KuraException {
    NetworkConfiguration networkConfiguration = new NetworkConfiguration();
    // Get the current values
    List<NetInterface<? extends NetInterfaceAddress>> allNetworkInterfaces = this.m_networkService.getNetworkInterfaces();
    Map<String, NetInterface<? extends NetInterfaceAddress>> allNetworkInterfacesMap = new HashMap<String, NetInterface<? extends NetInterfaceAddress>>();
    Map<String, NetInterface<? extends NetInterfaceAddress>> activeNetworkInterfacesMap = new HashMap<String, NetInterface<? extends NetInterfaceAddress>>();
    for (NetInterface<? extends NetInterfaceAddress> netInterface : allNetworkInterfaces) {
        allNetworkInterfacesMap.put(netInterface.getName(), netInterface);
        if (netInterface.isUp()) {
            activeNetworkInterfacesMap.put(netInterface.getName(), netInterface);
        }
    }
    // Create the NetInterfaceConfig objects
    if (allNetworkInterfacesMap.keySet() != null) {
        for (NetInterface<? extends NetInterfaceAddress> netInterface : allNetworkInterfacesMap.values()) {
            String interfaceName = netInterface.getName();
            try {
                // ignore mon interface
                if (interfaceName.startsWith("mon.")) {
                    continue;
                }
                // ignore redpine vlan interface
                if (interfaceName.startsWith("rpine")) {
                    continue;
                }
                // ignore usb0 for beaglebone
                if (interfaceName.startsWith("usb0") && System.getProperty("target.device").equals("beaglebone")) {
                    continue;
                }
                NetInterfaceType type = netInterface.getType();
                if (type == NetInterfaceType.UNKNOWN) {
                    if (interfaceName.matches(UNCONFIGURED_MODEM_REGEX)) {
                        // If the interface name is in a form such as "1-3.4", assume it is a modem
                        type = NetInterfaceType.MODEM;
                    } else {
                        SupportedSerialModemInfo serialModemInfo = SupportedSerialModemsInfo.getModem();
                        if (serialModemInfo != null && serialModemInfo.getModemName().equals(interfaceName)) {
                            type = NetInterfaceType.MODEM;
                        }
                    }
                }
                s_logger.debug("Getting config for {} type: {}", interfaceName, type);
                switch(type) {
                    case LOOPBACK:
                        LoopbackInterface<? extends NetInterfaceAddress> activeLoopInterface = (LoopbackInterface<? extends NetInterfaceAddress>) netInterface;
                        LoopbackInterfaceConfigImpl loopbackInterfaceConfig = null;
                        loopbackInterfaceConfig = new LoopbackInterfaceConfigImpl(activeLoopInterface);
                        networkConfiguration.addNetInterfaceConfig(loopbackInterfaceConfig);
                        break;
                    case ETHERNET:
                        EthernetInterface<? extends NetInterfaceAddress> activeEthInterface = (EthernetInterface<? extends NetInterfaceAddress>) netInterface;
                        EthernetInterfaceConfigImpl ethernetInterfaceConfig = null;
                        ethernetInterfaceConfig = new EthernetInterfaceConfigImpl(activeEthInterface);
                        networkConfiguration.addNetInterfaceConfig(ethernetInterfaceConfig);
                        break;
                    case WIFI:
                        WifiInterfaceImpl<? extends NetInterfaceAddress> activeWifiInterface = (WifiInterfaceImpl<? extends NetInterfaceAddress>) netInterface;
                        WifiInterfaceConfigImpl wifiInterfaceConfig = null;
                        wifiInterfaceConfig = new WifiInterfaceConfigImpl(activeWifiInterface);
                        networkConfiguration.addNetInterfaceConfig(wifiInterfaceConfig);
                        break;
                    case MODEM:
                        ModemInterfaceImpl<? extends NetInterfaceAddress> activeModemInterface = (ModemInterfaceImpl<? extends NetInterfaceAddress>) netInterface;
                        addPropertiesInModemInterface(activeModemInterface);
                        ModemInterfaceConfigImpl modemInterfaceConfig = null;
                        modemInterfaceConfig = new ModemInterfaceConfigImpl(activeModemInterface);
                        networkConfiguration.addNetInterfaceConfig(modemInterfaceConfig);
                        break;
                    case UNKNOWN:
                        s_logger.debug("Found interface of unknown type in current configuration: {}. Ignoring it.", interfaceName);
                        break;
                    default:
                        s_logger.debug("Unsupported type: {} - not adding to configuration. Ignoring it.", type);
                }
            } catch (Exception e) {
                s_logger.warn("Error fetching information for network interface: {}", interfaceName, e);
            }
        }
    }
    // populate the NetInterfaceConfigs
    for (NetworkConfigurationVisitor visitor : this.m_readVisitors) {
        networkConfiguration.accept(visitor);
    }
    return networkConfiguration;
}