Examples with IPv4 org.onlab.packet.IPv4 used on opensource projects

Example 31 with IPv4

use of org.onlab.packet.IPv4 in project onos by opennetworkinglab.

the class PimInterface method sendJoinPrune.

private void sendJoinPrune(McastRoute route, RouteData data, boolean join) {
    PIMJoinPrune jp = new PIMJoinPrune();
    jp.addJoinPrune(route.source().toIpPrefix(), route.group().toIpPrefix(), join);
    jp.setHoldTime(join ? (short) Math.floor(JOIN_PERIOD * HOLD_TIME_MULTIPLIER) : 0);
    jp.setUpstreamAddr(new PIMAddrUnicast(data.ipAddress.toString()));
    PIM pim = new PIM();
    pim.setPIMType(PIM.TYPE_JOIN_PRUNE_REQUEST);
    pim.setPayload(jp);
    IPv4 ipv4 = new IPv4();
    ipv4.setDestinationAddress(PIM.PIM_ADDRESS.getIp4Address().toInt());
    ipv4.setSourceAddress(getIpAddress().getIp4Address().toInt());
    ipv4.setProtocol(IPv4.PROTOCOL_PIM);
    ipv4.setTtl((byte) 1);
    ipv4.setDiffServ((byte) 0xc0);
    ipv4.setPayload(pim);
    Ethernet eth = new Ethernet();
    eth.setSourceMACAddress(onosInterface.mac());
    eth.setDestinationMACAddress(MacAddress.valueOf("01:00:5E:00:00:0d"));
    eth.setEtherType(Ethernet.TYPE_IPV4);
    eth.setPayload(ipv4);
    TrafficTreatment treatment = DefaultTrafficTreatment.builder().setOutput(onosInterface.connectPoint().port()).build();
    packetService.emit(new DefaultOutboundPacket(onosInterface.connectPoint().deviceId(), treatment, ByteBuffer.wrap(eth.serialize())));
    data.timestamp = System.currentTimeMillis();
}

Example 32 with IPv4

use of org.onlab.packet.IPv4 in project onos by opennetworkinglab.

the class PimInterface method processJoinPrune.

/**
 * Process an incoming PIM JoinPrune message.
 *
 * @param ethPkt the Ethernet packet header.
 */
public void processJoinPrune(Ethernet ethPkt) {
    IPv4 ip = (IPv4) ethPkt.getPayload();
    checkNotNull(ip);
    PIM pim = (PIM) ip.getPayload();
    checkNotNull(pim);
    PIMJoinPrune jpHdr = (PIMJoinPrune) pim.getPayload();
    checkNotNull(jpHdr);
    /*
         * The Join/Prune messages are grouped by Group address. We'll walk each group address
         * where we will possibly have to walk a list of source address for the joins and prunes.
         */
    Collection<PIMJoinPruneGroup> jpgs = jpHdr.getJoinPrunes();
    for (PIMJoinPruneGroup jpg : jpgs) {
        IpPrefix gpfx = jpg.getGroup();
        // Walk the joins first.
        for (IpPrefix spfx : jpg.getJoins().values()) {
        // We may need
        }
        for (IpPrefix spfx : jpg.getPrunes().values()) {
        // TODO: this is where we many need to remove multi-cast state and possibly intents.
        }
    }
}

Example 33 with IPv4

use of org.onlab.packet.IPv4 in project onos by opennetworkinglab.

the class DirectHostManager method transformAndSend.

private void transformAndSend(IP ip, short ethType, Interface egressInterface, MacAddress macAddress) {
    // Base processing for IPv4
    if (ethType == Ethernet.TYPE_IPV4) {
        IPv4 ipv4 = (IPv4) ip;
        ipv4.setTtl((byte) (ipv4.getTtl() - 1));
        ipv4.setChecksum((short) 0);
    // Base processing for IPv6.
    } else {
        IPv6 ipv6 = (IPv6) ip;
        ipv6.setHopLimit((byte) (ipv6.getHopLimit() - 1));
        ipv6.resetChecksum();
    }
    // Sends and serializes.
    Ethernet eth = new Ethernet();
    eth.setDestinationMACAddress(macAddress);
    eth.setSourceMACAddress(egressInterface.mac());
    eth.setEtherType(ethType);
    eth.setPayload(ip);
    if (!egressInterface.vlan().equals(VlanId.NONE)) {
        eth.setVlanID(egressInterface.vlan().toShort());
    }
    send(eth, egressInterface.connectPoint());
}

Example 34 with IPv4

use of org.onlab.packet.IPv4 in project onos by opennetworkinglab.

the class SimpleFabricRouting method checkVirtualGatewayIpPacket.

/**
 * handle Packet with dstIp=virtualGatewayIpAddresses.
 * returns true(handled) or false(not for virtual gateway)
 */
private boolean checkVirtualGatewayIpPacket(InboundPacket pkt, IpAddress srcIp, IpAddress dstIp) {
    // assume valid
    Ethernet ethPkt = pkt.parsed();
    MacAddress mac = simpleFabric.vMacForIp(dstIp);
    if (mac == null || !simpleFabric.isVirtualGatewayMac(ethPkt.getDestinationMAC())) {
        /* Destination MAC should be any of virtual gateway macs */
        return false;
    } else if (dstIp.isIp4()) {
        IPv4 ipv4Packet = (IPv4) ethPkt.getPayload();
        if (ipv4Packet.getProtocol() == IPv4.PROTOCOL_ICMP) {
            ICMP icmpPacket = (ICMP) ipv4Packet.getPayload();
            if (icmpPacket.getIcmpType() == ICMP.TYPE_ECHO_REQUEST) {
                log.info("IPV4 ICMP ECHO request to virtual gateway: " + "srcIp={} dstIp={} proto={}", srcIp, dstIp, ipv4Packet.getProtocol());
                TrafficTreatment treatment = DefaultTrafficTreatment.builder().setOutput(pkt.receivedFrom().port()).build();
                OutboundPacket packet = new DefaultOutboundPacket(pkt.receivedFrom().deviceId(), treatment, ByteBuffer.wrap(icmpPacket.buildIcmpReply(pkt.parsed()).serialize()));
                packetService.emit(packet);
                return true;
            }
        }
        log.warn("IPV4 packet to virtual gateway dropped: " + "srcIp={} dstIp={} proto={}", srcIp, dstIp, ipv4Packet.getProtocol());
        return true;
    } else if (dstIp.isIp6()) {
        // TODO: not tested yet (2017-07-20)
        IPv6 ipv6Packet = (IPv6) ethPkt.getPayload();
        if (ipv6Packet.getNextHeader() == IPv6.PROTOCOL_ICMP6) {
            ICMP6 icmp6Packet = (ICMP6) ipv6Packet.getPayload();
            if (icmp6Packet.getIcmpType() == ICMP6.ECHO_REQUEST) {
                log.info("IPV6 ICMP6 ECHO request to virtual gateway: srcIp={} dstIp={} nextHeader={}", srcIp, dstIp, ipv6Packet.getNextHeader());
                TrafficTreatment treatment = DefaultTrafficTreatment.builder().setOutput(pkt.receivedFrom().port()).build();
                OutboundPacket packet = new DefaultOutboundPacket(pkt.receivedFrom().deviceId(), treatment, ByteBuffer.wrap(icmp6Packet.buildIcmp6Reply(pkt.parsed()).serialize()));
                packetService.emit(packet);
                return true;
            }
        }
        log.warn("IPV6 packet to virtual gateway dropped: srcIp={} dstIp={} nextHeader={}", srcIp, dstIp, ipv6Packet.getNextHeader());
        return true;
    }
    // unknown traffic
    return false;
}

Example 35 with IPv4

use of org.onlab.packet.IPv4 in project onos by opennetworkinglab.

the class TunnellingConnectivityManager method forward.

/**
 * Forwards a BGP packet to another connect point.
 *
 * @param context the packet context of the incoming packet
 */
private void forward(PacketContext context) {
    ConnectPoint outputPort = null;
    IPv4 ipv4 = (IPv4) context.inPacket().parsed().getPayload();
    IpAddress dstAddress = IpAddress.valueOf(ipv4.getDestinationAddress());
    if (context.inPacket().receivedFrom().equals(bgpSpeaker.connectPoint())) {
        if (bgpSpeaker.peers().contains(dstAddress)) {
            Interface intf = interfaceService.getMatchingInterface(dstAddress);
            if (intf != null) {
                outputPort = intf.connectPoint();
            }
        }
    } else {
        Set<Interface> interfaces = interfaceService.getInterfacesByPort(context.inPacket().receivedFrom());
        if (interfaces.stream().flatMap(intf -> intf.ipAddressesList().stream()).anyMatch(ia -> ia.ipAddress().equals(dstAddress))) {
            outputPort = bgpSpeaker.connectPoint();
        }
    }
    if (outputPort != null) {
        TrafficTreatment t = DefaultTrafficTreatment.builder().setOutput(outputPort.port()).build();
        OutboundPacket o = new DefaultOutboundPacket(outputPort.deviceId(), t, context.inPacket().unparsed());
        packetService.emit(o);
    }
}