Package org.jnode.net.ipv4.icmp

Examples of org.jnode.net.ipv4.icmp.ICMPUtils

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    private final IPv4Address loadAddress(Preferences prefs, String key) {
        final String addrStr = prefs.get(key, null);
        if (addrStr == null) {
            return null;
        } else {
            return new IPv4Address(addrStr);
        }
    }
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        if (myAddrInfo == null) {
            stat.nodevaddr.inc();
        }

        // Should I process this packet, or is it for somebody else?
        final IPv4Address dstAddr = hdr.getDestination();
        final boolean shouldProcess;
        if (myAddrInfo != null) {
            shouldProcess = myAddrInfo.contains(dstAddr);
        } else {
            // I don't have an IP address yet, if the linklayer says
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            try {
                final NetDeviceAPI api = dev.getAPI(NetDeviceAPI.class);
                final IPv4ProtocolAddressInfo addrInfo =
                        (IPv4ProtocolAddressInfo) api.getProtocolAddressInfo(EthernetConstants.ETH_P_IP);
                if (addrInfo != null) {
                    final IPv4Address addr = (IPv4Address) addrInfo.getDefaultAddress();
                    if (addr != null) {
                        return addr;
                    }
                }
            } catch (ApiNotFoundException ex) {
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    /**
     * @see java.net.DatagramSocketImpl#send(java.net.DatagramPacket)
     */
    protected void send(DatagramPacket p) throws IOException {

        final IPv4Address dstAddress = new IPv4Address(p.getAddress());
        final IPv4Header ipHdr;
        ipHdr = new IPv4Header(getTos(), getTimeToLive(), IPPROTO_UDP, dstAddress, p.getLength() + UDP_HLEN);
        if (!getLocalAddress().isAnyLocalAddress() || (getDevice() != null)) {
            ipHdr.setSource(new IPv4Address(getLocalAddress()));
        }
        final UDPHeader udpHdr;
        final int srcPort = getLocalPort();
        // final int srcPort = p.getPort(); // or getLocalPort???? TODO Fix
        // srcPort issue
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     * @param skbuf
     * @return
     * @throws NoRouteToHostException
     */
    private IPv4Route findRoute(IPv4Header hdr, SocketBuffer skbuf) throws NoRouteToHostException {
        final IPv4Address destination = hdr.getDestination();
        return rt.search(destination);
    }
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     * @return
     */
    private HardwareAddress findDstHWAddress(IPv4Route route, IPv4Header hdr, SocketBuffer skbuf)
        throws NetworkException {
        final ARPNetworkLayer arp = getARP();
        final IPv4Address dstAddr;
        if (hdr.getDestination().isBroadcast()) {
            return null;
        } else if (route.isGateway()) {
            dstAddr = route.getGateway();
        } else {
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            try {
                final NetDeviceAPI api = dev.getAPI(NetDeviceAPI.class);
                final IPv4ProtocolAddressInfo addrInfo;
                addrInfo = (IPv4ProtocolAddressInfo) api.getProtocolAddressInfo(EthernetConstants.ETH_P_IP);
                if (addrInfo != null) {
                    final IPv4Address devAddr = (IPv4Address) addrInfo.getDefaultAddress();
                    if (devAddr.matches(target, mask)) {
                        return dev;
                    }
                }
            } catch (ApiNotFoundException ex) {
                // Should not happen, but if it happens anyway, just ignore it.
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    public static void main(String[] args) throws Exception {
        new ResolverCommand().execute(args);
    }

    public void execute() throws NetworkException {
        IPv4Address server = argDnsServer.getValue();
        PrintWriter out = getOutput().getPrintWriter();
        if (argAdd.isSet()) {
            // Add a DNS server
            ResolverImpl.addDnsServer(server);
        } else if (argDel.isSet()) {
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            if (!argIPAddress.isSet()) {
                // Print IP address(es) for device
                out.format(fmt_ip, dev.getId(), api.getProtocolAddressInfo(EthernetConstants.ETH_P_IP));
            } else {
                // Set IP address for device
                final IPv4Address ip = argIPAddress.getValue();
                final IPv4Address mask = argSubnetMask.getValue();
                final IPv4ConfigurationService cfg = InitialNaming.lookup(IPv4ConfigurationService.NAME);
                cfg.configureDeviceStatic(dev, ip, mask, true);

                // FIXME ... this doesn't show the device's new address because the
                // IPv4 ConfigurationServiceImpl calls processor.apply with the
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    }

    @Override
    protected IPv4Address doAccept(Token value, int flags) throws CommandSyntaxException {
        try {
            return new IPv4Address(value.text);
        } catch (IllegalArgumentException ex) {
            throw new CommandSyntaxException("invalid hostname or IPv4 address");
        }
    }
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Related Classes of org.jnode.net.ipv4.icmp.ICMPUtils

  • org.apache.commons.net.tftp.TFTPAckPacket
  • org.apache.commons.net.tftp.TFTPDataPacket
  • org.apache.commons.net.tftp.TFTPErrorPacket
  • org.apache.commons.net.tftp.TFTPPacket
  • org.apache.commons.net.tftp.TFTPReadRequestPacket
  • org.apache.commons.net.tftp.TFTPWriteRequestPacket
  • org.jnode.command.net.BootpCommand
  • org.jnode.command.net.DhcpCommand
  • org.jnode.command.net.IfconfigCommand
  • org.jnode.command.net.PingCommand
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