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

Example 16 with PacketContext

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

the class Dhcp6HandlerImpl method handleLeaseQuery6ReplyMsg.

public void handleLeaseQuery6ReplyMsg(PacketContext context, DHCP6 dhcp6Payload) {
    ConnectPoint inPort = context.inPacket().receivedFrom();
    log.info("Got LQV6-REPLY on port {}", inPort);
    List<Dhcp6Option> lopt = dhcp6Payload.getOptions();
    log.info("Options list: {}", lopt);
    // find out if this lease is known is
    Dhcp6ClientDataOption clientDataOption = dhcp6Payload.getOptions().stream().filter(opt -> opt instanceof Dhcp6ClientDataOption).map(pld -> (Dhcp6ClientDataOption) pld).findFirst().orElse(null);
    if (clientDataOption == null) {
        log.warn("clientDataOption option is not present, " + "lease is UNKNOWN - not adding any new route...");
    } else {
        Dhcp6IaAddressOption aiAddressOption = clientDataOption.getOptions().stream().filter(opt -> opt instanceof Dhcp6IaAddressOption).map(pld -> (Dhcp6IaAddressOption) pld).findFirst().orElse(null);
        Dhcp6ClientIdOption clientIdOption = clientDataOption.getOptions().stream().filter(opt -> opt instanceof Dhcp6ClientIdOption).map(pld -> (Dhcp6ClientIdOption) pld).findFirst().orElse(null);
        if (aiAddressOption == null) {
            log.warn("clientDataOption from DHCP server does not " + "contains Dhcp6IaAddressOption for the client - giving up...");
        } else {
            Ip6Address clientAddress = aiAddressOption.getIp6Address();
            MacAddress clientMacAddress = MacAddress.valueOf(clientIdOption.getDuid().getLinkLayerAddress());
            Ethernet packet = context.inPacket().parsed();
            VlanId vlanId = VlanId.vlanId(packet.getVlanID());
            MacAddress potentialNextHopMac = findNextHopMacForIp6FromRelayStore(clientAddress, clientMacAddress, vlanId);
            if (potentialNextHopMac == null) {
                log.warn("Can't find next hop host mac for client {} mac:{}/{}", clientAddress, clientMacAddress, vlanId);
                return;
            } else {
                log.info("Next hop mac for {}/{}/{} is {}", clientAddress, clientMacAddress, vlanId, potentialNextHopMac.toString());
            }
            // search the next hop in the hosts store
            HostId gwHostId = HostId.hostId(potentialNextHopMac, vlanId);
            Host gwHost = hostService.getHost(gwHostId);
            if (gwHost == null) {
                log.warn("Can't find next hop host ID {}", gwHostId);
                return;
            }
            Ip6Address nextHopIp = gwHost.ipAddresses().stream().filter(IpAddress::isIp6).filter(IpAddress::isLinkLocal).map(IpAddress::getIp6Address).findFirst().orElse(null);
            if (nextHopIp == null) {
                log.warn("Can't find IP6 address of next hop {}", gwHost);
                return;
            }
            log.info("client " + clientAddress + " is known !");
            Route routeForIP6 = new Route(Route.Source.DHCP, clientAddress.toIpPrefix(), nextHopIp);
            log.debug("updating route of Client for indirectly connected.");
            log.debug("client ip: " + clientAddress + ", next hop ip6: " + nextHopIp);
            routeStore.updateRoute(routeForIP6);
        }
    }
}

Example 17 with PacketContext

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

the class DhcpRelayManagerTest method testDhcp6DualHome.

@Test
public void testDhcp6DualHome() {
    PacketContext packetContext = new TestDhcp6ReplyPacketContext(DHCP6.MsgType.REPLY.value(), CLIENT_DH_CP, CLIENT_MAC, CLIENT_VLAN, INTERFACE_IP_V6.ipAddress().getIp6Address(), 0, false, CLIENT_VLAN);
    reset(manager.hostService);
    expect(manager.hostService.getHostsByIp(CLIENT_LL_IP_V6)).andReturn(ImmutableSet.of(EXISTS_HOST)).anyTimes();
    // FIXME: currently DHCPv6 has a bug, we can't get correct vlan of client......
    // XXX: The vlan relied from DHCP6 handler might be wrong, do hack here
    HostId hostId = HostId.hostId(CLIENT_MAC, VlanId.NONE);
    expect(manager.hostService.getHost(hostId)).andReturn(EXISTS_HOST).anyTimes();
    // XXX: sometimes this will work, sometimes not
    expect(manager.hostService.getHost(CLIENT_HOST_ID)).andReturn(EXISTS_HOST).anyTimes();
    Capture<HostDescription> capturedHostDesc = newCapture();
    // XXX: also a hack here
    mockHostProviderService.hostDetected(eq(hostId), capture(capturedHostDesc), eq(false));
    expectLastCall().anyTimes();
    mockHostProviderService.hostDetected(eq(CLIENT_HOST_ID), capture(capturedHostDesc), eq(false));
    expectLastCall().anyTimes();
    replay(mockHostProviderService, manager.hostService);
    packetService.processPacket(packetContext);
    assertAfter(PKT_PROCESSING_MS, () -> verify(mockHostProviderService));
    assertAfter(PKT_PROCESSING_MS, () -> assertTrue(capturedHostDesc.hasCaptured()));
    HostDescription hostDesc = capturedHostDesc.getValue();
    Set<HostLocation> hostLocations = hostDesc.locations();
    assertAfter(PKT_PROCESSING_MS, () -> assertEquals(2, hostLocations.size()));
    assertAfter(PKT_PROCESSING_MS, () -> assertTrue(hostLocations.contains(CLIENT_LOCATION)));
    assertAfter(PKT_PROCESSING_MS, () -> assertTrue(hostLocations.contains(CLIENT_DH_LOCATION)));
}

Example 18 with PacketContext

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

the class OpenstackRoutingArpHandler method processArpPacket.

private void processArpPacket(PacketContext context, Ethernet ethernet) {
    ARP arp = (ARP) ethernet.getPayload();
    if (arp.getOpCode() == ARP.OP_REQUEST && ARP_PROXY_MODE.equals(getArpMode())) {
        if (log.isTraceEnabled()) {
            log.trace("ARP request received from {} for {}", Ip4Address.valueOf(arp.getSenderProtocolAddress()).toString(), Ip4Address.valueOf(arp.getTargetProtocolAddress()).toString());
        }
        IpAddress targetIp = Ip4Address.valueOf(arp.getTargetProtocolAddress());
        MacAddress targetMac = null;
        NetFloatingIP floatingIP = osRouterAdminService.floatingIps().stream().filter(ip -> ip.getFloatingIpAddress().equals(targetIp.toString())).findAny().orElse(null);
        // In case target ip is for associated floating ip, sets target mac to vm's.
        if (floatingIP != null && floatingIP.getPortId() != null) {
            InstancePort instPort = instancePortService.instancePort(floatingIP.getPortId());
            if (instPort == null) {
                log.trace("Unknown target ARP request for {}, ignore it", targetIp);
                return;
            } else {
                targetMac = instPort.macAddress();
            }
            OpenstackNode gw = getGwByInstancePort(osNodeService.completeNodes(GATEWAY), instPort);
            if (gw == null) {
                return;
            }
            // if the ARP packet_in received from non-relevant GWs, we simply ignore it
            if (!Objects.equals(gw.intgBridge(), context.inPacket().receivedFrom().deviceId())) {
                return;
            }
        }
        if (isExternalGatewaySourceIp(targetIp)) {
            targetMac = Constants.DEFAULT_GATEWAY_MAC;
        }
        if (targetMac == null) {
            log.trace("Unknown target ARP request for {}, ignore it", targetIp);
            return;
        }
        Ethernet ethReply = ARP.buildArpReply(targetIp.getIp4Address(), targetMac, ethernet);
        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();
    }
    if (arp.getOpCode() == ARP.OP_REPLY) {
        ConnectPoint cp = context.inPacket().receivedFrom();
        PortNumber receivedPortNum = cp.port();
        IpAddress spa = Ip4Address.valueOf(arp.getSenderProtocolAddress());
        MacAddress sha = MacAddress.valueOf(arp.getSenderHardwareAddress());
        log.debug("ARP reply ip: {}, mac: {}", spa, sha);
        try {
            Set<String> extRouterIps = osNetworkService.externalPeerRouters().stream().map(r -> r.ipAddress().toString()).collect(Collectors.toSet());
            // if SPA is NOT contained in existing external router IP set, we ignore it
            if (!extRouterIps.contains(spa.toString())) {
                return;
            }
            OpenstackNode node = osNodeService.node(cp.deviceId());
            if (node == null) {
                return;
            }
            // we only handles the ARP-Reply message received by gateway node
            if (node.type() != GATEWAY) {
                return;
            }
            if (receivedPortNum.equals(node.uplinkPortNum())) {
                osNetworkAdminService.updateExternalPeerRouterMac(spa, sha);
            }
        } catch (Exception e) {
            log.error("Exception occurred because of {}", e);
        }
    }
}

Example 19 with PacketContext

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

the class OpenstackSwitchingDhcpHandlerTest method sendPacket.

/**
 * Sends an Ethernet packet to the process method of the Packet Processor.
 *
 * @param ethernet Ethernet packet
 */
private void sendPacket(Ethernet ethernet) {
    final ByteBuffer byteBuffer = ByteBuffer.wrap(ethernet.serialize());
    InboundPacket inPacket = new DefaultInboundPacket(connectPoint("1", 1), ethernet, byteBuffer);
    PacketContext context = new TestPacketContext(127L, inPacket, null, false);
    packetProcessor.process(context);
}

Example 20 with PacketContext

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

the class OpenstackRoutingSnatIcmpHandlerTest method sendPacket.

private void sendPacket(Ethernet ethernet) {
    final ByteBuffer byteBuffer = ByteBuffer.wrap(ethernet.serialize());
    InboundPacket inPacket = new DefaultInboundPacket(connectPoint(srcDeviceId1.toString(), Integer.parseInt(srcPortNum1.toString())), ethernet, byteBuffer);
    PacketContext context = new TestPacketContext(127L, inPacket, null, false);
    packetProcessor.process(context);
}