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

Example 16 with ICMP

use of org.onlab.packet.ICMP 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 17 with ICMP

use of org.onlab.packet.ICMP in project trellis-control by opennetworkinglab.

the class IcmpHandlerTest method testPing4RemoteGatewaySamePair.

// Ping to a gateway attached only to the pair leaf (routing through spine)
@Test
public void testPing4RemoteGatewaySamePair() {
    // Expected behavior
    expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF1)).andReturn(true).times(1);
    expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF2)).andReturn(true).times(1);
    replay(segmentRoutingManager.deviceService);
    // Process
    icmpHandler.processIcmp(ETH_REQ_IPV4_SAME, CP2025);
    // Verify packet-out
    Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV4_SAME.getSourceMAC());
    assertNotNull(ethernet);
    assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV4_SAME.getDestinationMAC()));
    assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV4_SAME.getSourceMAC()));
    assertTrue(ethernet.getPayload() instanceof MPLS);
    MPLS mpls = (MPLS) ethernet.getPayload();
    assertThat(mpls.getLabel(), is(LOCAL_LEAF1_SID4));
    assertTrue(mpls.getPayload() instanceof IPv4);
    IPv4 ip = (IPv4) mpls.getPayload();
    assertThat(ip.getSourceAddress(), is(DST_IPV4_SAME.toInt()));
    assertThat(ip.getDestinationAddress(), is(SRC_IPV41.toInt()));
    assertTrue(ip.getPayload() instanceof ICMP);
    ICMP icmp = (ICMP) ip.getPayload();
    assertThat(icmp.getIcmpType(), is(TYPE_ECHO_REPLY));
    assertThat(icmp.getIcmpCode(), is(CODE_ECHO_REPLY));
    // Verify behavior
    verify(segmentRoutingManager.deviceService);
}

Example 18 with ICMP

use of org.onlab.packet.ICMP in project trellis-control by opennetworkinglab.

the class IcmpHandlerTest method testPing4LoopbackPair.

// Ping to the looback of our leaf (pair)
@Test
public void testPing4LoopbackPair() {
    // Expected behavior
    expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF1)).andReturn(true).times(1);
    expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF2)).andReturn(true).times(1);
    replay(segmentRoutingManager.deviceService);
    // Process
    icmpHandler.processIcmp(ETH_REQ_IPV4_LOOPBACK_PAIR, CP2011);
    // Verify packet-out
    Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV4_LOOPBACK_PAIR.getSourceMAC());
    assertNotNull(ethernet);
    assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV4_LOOPBACK_PAIR.getDestinationMAC()));
    assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV4_LOOPBACK_PAIR.getSourceMAC()));
    assertTrue(ethernet.getPayload() instanceof IPv4);
    IPv4 ip = (IPv4) ethernet.getPayload();
    assertThat(ip.getSourceAddress(), is(DST_IPV4_LOOPBACK_PAIR.toInt()));
    assertThat(ip.getDestinationAddress(), is(SRC_IPV41.toInt()));
    assertTrue(ip.getPayload() instanceof ICMP);
    ICMP icmp = (ICMP) ip.getPayload();
    assertThat(icmp.getIcmpType(), is(TYPE_ECHO_REPLY));
    assertThat(icmp.getIcmpCode(), is(CODE_ECHO_REPLY));
    // Verify behavior
    verify(segmentRoutingManager.deviceService);
}

Example 19 with ICMP

use of org.onlab.packet.ICMP in project trellis-control by opennetworkinglab.

the class IcmpHandlerTest method testPing4LoopbackPairDifferentLeaf.

// Ping to the loopback of the leaf but hashing of the bond interfaces sends to wrong leaf
@Test
public void testPing4LoopbackPairDifferentLeaf() {
    // Expected behavior
    expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF1)).andReturn(true).times(1);
    expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF2)).andReturn(true).times(1);
    replay(segmentRoutingManager.deviceService);
    // Process
    icmpHandler.processIcmp(ETH_REQ_IPV4_LOOPBACK_PAIR, CP2021);
    // Verify packet-out
    Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV4_LOOPBACK_PAIR.getSourceMAC());
    assertNotNull(ethernet);
    assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV4_LOOPBACK_PAIR.getDestinationMAC()));
    assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV4_LOOPBACK_PAIR.getSourceMAC()));
    assertTrue(ethernet.getPayload() instanceof IPv4);
    IPv4 ip = (IPv4) ethernet.getPayload();
    assertThat(ip.getSourceAddress(), is(DST_IPV4_LOOPBACK_PAIR.toInt()));
    assertThat(ip.getDestinationAddress(), is(SRC_IPV41.toInt()));
    assertTrue(ip.getPayload() instanceof ICMP);
    ICMP icmp = (ICMP) ip.getPayload();
    assertThat(icmp.getIcmpType(), is(TYPE_ECHO_REPLY));
    assertThat(icmp.getIcmpCode(), is(CODE_ECHO_REPLY));
    // Verify behavior
    verify(segmentRoutingManager.deviceService);
}

Example 20 with ICMP

use of org.onlab.packet.ICMP in project trellis-control by opennetworkinglab.

the class IcmpHandlerTest method testPing4LocalGateway.

// Ping to a gateway attached to our leaf
@Test
public void testPing4LocalGateway() {
    // Expected behavior
    expect(segmentRoutingManager.deviceService.isAvailable(REMOTE_LEAF)).andReturn(true).times(1);
    replay(segmentRoutingManager.deviceService);
    // Process
    icmpHandler.processIcmp(ETH_REQ_IPV4_LOCAL, CP12);
    // Verify packet-out
    Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV4_LOCAL.getSourceMAC());
    assertNotNull(ethernet);
    assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV4_LOCAL.getDestinationMAC()));
    assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV4_LOCAL.getSourceMAC()));
    assertTrue(ethernet.getPayload() instanceof IPv4);
    IPv4 ip = (IPv4) ethernet.getPayload();
    assertThat(ip.getSourceAddress(), is(DST_IPV4_LOCAL.toInt()));
    assertThat(ip.getDestinationAddress(), is(SRC_IPV4_MY.toInt()));
    assertTrue(ip.getPayload() instanceof ICMP);
    ICMP icmp = (ICMP) ip.getPayload();
    assertThat(icmp.getIcmpType(), is(TYPE_ECHO_REPLY));
    assertThat(icmp.getIcmpCode(), is(CODE_ECHO_REPLY));
    // Verify behavior
    verify(segmentRoutingManager.deviceService);
}