Examples with DefaultOutboundPacket org.onosproject.net.packet.DefaultOutboundPacket used on opensource projects

Example 1 with DefaultOutboundPacket

use of org.onosproject.net.packet.DefaultOutboundPacket in project onos by opennetworkinglab.

the class K8sSwitchingArpHandler method processArpRequest.

private void processArpRequest(PacketContext context, Ethernet ethPacket) {
    ARP arpPacket = (ARP) ethPacket.getPayload();
    K8sPort srcK8sPort = k8sNetworkService.ports().stream().filter(p -> p.macAddress().equals(ethPacket.getSourceMAC())).findAny().orElse(null);
    PortNumber srcPortNum = context.inPacket().receivedFrom().port();
    DeviceId srcDeviceId = context.inPacket().receivedFrom().deviceId();
    boolean isEntryPort = false;
    for (K8sNode node : k8sNodeService.completeNodes()) {
        if (srcDeviceId.equals(node.intgBridge()) && srcPortNum.equals(node.intgEntryPortNum())) {
            isEntryPort = true;
        }
    }
    // integration bridge entry port, we simply ignore the ARP request...
    if (srcK8sPort == null && !isEntryPort) {
        log.warn("Failed to find source port(MAC:{})", ethPacket.getSourceMAC());
        return;
    }
    IpAddress targetIp = Ip4Address.valueOf(arpPacket.getTargetProtocolAddress());
    // look up the MAC address from regular k8s ports
    MacAddress replyMac = k8sNetworkService.ports().stream().filter(p -> p.ipAddress().equals(targetIp)).map(K8sPort::macAddress).findAny().orElse(null);
    // look up the MAC address from special integration entry port (e.g., LOCAL, k8s-int-os)
    for (K8sNetwork network : k8sNetworkService.networks()) {
        if (network.gatewayIp().equals(targetIp)) {
            K8sNode node = k8sNodeService.node(network.name());
            replyMac = node.intgEntryPortMac();
        }
    }
    if (replyMac == null) {
        String cidr = k8sNetworkService.networks().stream().map(K8sNetwork::cidr).findAny().orElse(null);
        if (cidr != null) {
            String unshiftedIp = unshiftIpDomain(targetIp.toString(), SHIFTED_IP_PREFIX, cidr);
            replyMac = k8sNetworkService.ports().stream().filter(p -> p.ipAddress().equals(IpAddress.valueOf(unshiftedIp))).map(K8sPort::macAddress).findAny().orElse(null);
        }
    }
    if (replyMac == null) {
        Set<String> serviceIps = k8sServiceService.services().stream().map(s -> s.getSpec().getClusterIP()).collect(Collectors.toSet());
        if (serviceIps.contains(targetIp.toString())) {
            replyMac = MacAddress.valueOf(SERVICE_FAKE_MAC_STR);
        }
    }
    if (replyMac == null) {
        if (targetIp.toString().startsWith(NODE_IP_PREFIX)) {
            String targetIpPrefix = targetIp.toString().split("\\.")[1];
            String nodePrefix = NODE_IP_PREFIX + "." + targetIpPrefix;
            String origNodeCidr = k8sNodeService.completeNodes().stream().map(n -> n.nodeIp().toString()).findAny().orElse(null);
            if (origNodeCidr != null) {
                String origNodeIp = unshiftIpDomain(targetIp.toString(), nodePrefix, origNodeCidr);
                IpPrefix k8sNodeIpCidr = IpPrefix.valueOf(IpAddress.valueOf(origNodeCidr), 24);
                SubnetUtils k8sNodeSubnet = new SubnetUtils(k8sNodeIpCidr.toString());
                String k8sNodeGateway = getGatewayIp(k8sNodeIpCidr.toString()).toString();
                String seekIp = "";
                if (!k8sNodeSubnet.getInfo().isInRange(origNodeIp)) {
                    replyMac = extHostMacStore.asJavaMap().get(IpAddress.valueOf(k8sNodeGateway));
                    seekIp = k8sNodeGateway;
                } else {
                    replyMac = extHostMacStore.asJavaMap().get(IpAddress.valueOf(origNodeIp));
                    seekIp = origNodeIp;
                }
                // we need to manually learn their MAC addresses
                if (replyMac == null) {
                    ConnectPoint cp = context.inPacket().receivedFrom();
                    K8sNode k8sNode = k8sNodeService.node(cp.deviceId());
                    if (k8sNode != null) {
                        // we use fake IP and MAC address as a source to
                        // query destination MAC address
                        setArpRequest(MacAddress.valueOf(NODE_FAKE_MAC_STR).toBytes(), IpAddress.valueOf(NODE_FAKE_IP_STR).toOctets(), IpAddress.valueOf(seekIp).toOctets(), k8sNode);
                        context.block();
                        return;
                    }
                }
            }
        }
    }
    if (replyMac == null) {
        replyMac = MacAddress.valueOf(gatewayMac);
    }
    Ethernet ethReply = ARP.buildArpReply(targetIp.getIp4Address(), replyMac, ethPacket);
    TrafficTreatment treatment = DefaultTrafficTreatment.builder().setOutput(context.inPacket().receivedFrom().port()).build();
    packetService.emit(new DefaultOutboundPacket(context.inPacket().receivedFrom().deviceId(), treatment, ByteBuffer.wrap(ethReply.serialize())));
    context.block();
}

Example 2 with DefaultOutboundPacket

use of org.onosproject.net.packet.DefaultOutboundPacket in project onos by opennetworkinglab.

the class KubevirtFloatingIpHandler method processGarpPacketForFloatingIp.

private void processGarpPacketForFloatingIp(KubevirtFloatingIp floatingIp, KubevirtNode electedGw) {
    if (floatingIp == null) {
        return;
    }
    KubevirtPort kubevirtPort = getKubevirtPortByFloatingIp(floatingIp);
    if (kubevirtPort == null) {
        return;
    }
    Ethernet ethernet = buildGarpPacket(kubevirtPort.macAddress(), floatingIp.floatingIp());
    if (ethernet == null) {
        return;
    }
    TrafficTreatment treatment = DefaultTrafficTreatment.builder().setOutput(externalPatchPortNum(deviceService, electedGw)).build();
    packetService.emit(new DefaultOutboundPacket(electedGw.intgBridge(), treatment, ByteBuffer.wrap(ethernet.serialize())));
}

Example 3 with DefaultOutboundPacket

use of org.onosproject.net.packet.DefaultOutboundPacket in project onos by opennetworkinglab.

the class DirectHostManager method send.

private void send(Ethernet eth, ConnectPoint cp) {
    OutboundPacket packet = new DefaultOutboundPacket(cp.deviceId(), DefaultTrafficTreatment.builder().setOutput(cp.port()).build(), ByteBuffer.wrap(eth.serialize()));
    packetService.emit(packet);
}

Example 4 with DefaultOutboundPacket

use of org.onosproject.net.packet.DefaultOutboundPacket in project onos by opennetworkinglab.

the class CastorArpManager method createArp.

@Override
public void createArp(Peer peer) {
    Ethernet packet = null;
    packet = buildArpRequest(peer);
    ByteBuffer buf = ByteBuffer.wrap(packet.serialize());
    ConnectPoint connectPoint = ConnectPoint.deviceConnectPoint(peer.getPort());
    TrafficTreatment.Builder builder = DefaultTrafficTreatment.builder();
    builder.setOutput(connectPoint.port());
    packetService.emit(new DefaultOutboundPacket(connectPoint.deviceId(), builder.build(), buf));
}

Example 5 with DefaultOutboundPacket

use of org.onosproject.net.packet.DefaultOutboundPacket in project onos by opennetworkinglab.

the class CastorArpManager method forward.

/**
 * Forwards the ARP packet to the specified connect point via packet out.
 *
 * @param context The packet context
 */
private void forward(MessageContext context) {
    TrafficTreatment.Builder builder = null;
    Ethernet eth = context.packet();
    ByteBuffer buf = ByteBuffer.wrap(eth.serialize());
    IpAddress target = context.target();
    String value = getMatchingConnectPoint(target);
    if (value != null) {
        ConnectPoint connectPoint = ConnectPoint.deviceConnectPoint(value);
        builder = DefaultTrafficTreatment.builder();
        builder.setOutput(connectPoint.port());
        packetService.emit(new DefaultOutboundPacket(connectPoint.deviceId(), builder.build(), buf));
    }
}