Java Code Examples for org.onlab.packet.Ethernet#getPayload()
The following examples show how to use
org.onlab.packet.Ethernet#getPayload() .
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Example 1
| Source File: OpenstackTroubleshootManager.java From onos with Apache License 2.0 | 6 votes |
|
@Override
public void process(PacketContext context) {
if (context.isHandled()) {
return;
}
InboundPacket pkt = context.inPacket();
Ethernet ethernet = pkt.parsed();
if (ethernet == null || ethernet.getEtherType() == Ethernet.TYPE_ARP) {
return;
}
IPv4 iPacket = (IPv4) ethernet.getPayload();
if (iPacket.getProtocol() == IPv4.PROTOCOL_ICMP) {
eventExecutor.execute(() -> processIcmpPacket(context, ethernet));
}
}
Example 2
| Source File: IcmpHandler.java From onos with Apache License 2.0 | 6 votes |
|
@Override
public void process(PacketContext context) {
// Stop processing if the packet has been handled, since we
// can't do any more to it.
if (context.isHandled()) {
return;
}
Ethernet packet = context.inPacket().parsed();
if (packet == null) {
return;
}
if (packet.getEtherType() == Ethernet.TYPE_IPV4) {
IPv4 ipv4Packet = (IPv4) packet.getPayload();
if (ipv4Packet.getProtocol() == IPv4.PROTOCOL_ICMP) {
processPacketIn(context.inPacket());
}
}
}
Example 3
| Source File: K8sSwitchingArpHandler.java From onos with Apache License 2.0 | 6 votes |
|
private void processArpReply(PacketContext context, Ethernet ethPacket) {
ARP arpPacket = (ARP) ethPacket.getPayload();
ConnectPoint cp = context.inPacket().receivedFrom();
K8sNode k8sNode = k8sNodeService.node(cp.deviceId());
if (k8sNode != null &&
ethPacket.getDestinationMAC().equals(k8sNode.extBridgeMac())) {
IpAddress srcIp = IpAddress.valueOf(IpAddress.Version.INET,
arpPacket.getSenderProtocolAddress());
MacAddress srcMac = MacAddress.valueOf(arpPacket.getSenderHardwareAddress());
// we only add the host IP - MAC map store once,
// mutable MAP scenario is not considered for now
if (!extHostMacStore.containsKey(srcIp)) {
extHostMacStore.put(srcIp, srcMac);
}
}
}
Example 4
| Source File: IcmpHandler.java From onos with Apache License 2.0 | 6 votes |
|
private void processPacketIn(InboundPacket pkt) {
boolean ipMatches = false;
Ethernet ethernet = pkt.parsed();
IPv4 ipv4 = (IPv4) ethernet.getPayload();
ConnectPoint connectPoint = pkt.receivedFrom();
IpAddress destIpAddress = IpAddress.valueOf(ipv4.getDestinationAddress());
Interface targetInterface = interfaceService.getMatchingInterface(destIpAddress);
if (targetInterface == null) {
log.trace("No matching interface for {}", destIpAddress);
return;
}
for (InterfaceIpAddress interfaceIpAddress: targetInterface.ipAddressesList()) {
if (interfaceIpAddress.ipAddress().equals(destIpAddress)) {
ipMatches = true;
break;
}
}
if (((ICMP) ipv4.getPayload()).getIcmpType() == ICMP.TYPE_ECHO_REQUEST &&
ipMatches) {
sendIcmpResponse(ethernet, connectPoint);
}
}
Example 5
| Source File: Dhcp6DirectPacketClassifier.java From onos with Apache License 2.0 | 6 votes |
|
@Override
public boolean match(PacketContext packet) {
Ethernet eth = packet.inPacket().parsed();
if (eth.getEtherType() == Ethernet.TYPE_IPV6) {
IPv6 ipv6Packet = (IPv6) eth.getPayload();
if (ipv6Packet.getNextHeader() == IPv6.PROTOCOL_UDP) {
UDP udpPacket = (UDP) ipv6Packet.getPayload();
//Directly connected host
if (udpPacket.getDestinationPort() == UDP.DHCP_V6_SERVER_PORT &&
udpPacket.getSourcePort() == UDP.DHCP_V6_CLIENT_PORT) {
DHCP6 dhcp6 = (DHCP6) udpPacket.getPayload();
if (dhcp6.getMsgType() == DHCP6.MsgType.SOLICIT.value()) {
return true;
}
}
}
}
return false;
}
Example 6
| Source File: TunnellingConnectivityManager.java From onos with Apache License 2.0 | 6 votes |
|
@Override
public void process(PacketContext context) {
// Stop processing if the packet has been handled, since we
// can't do any more to it.
if (context.isHandled()) {
return;
}
Ethernet packet = context.inPacket().parsed();
if (packet == null) {
return;
}
if (packet.getEtherType() == Ethernet.TYPE_IPV4) {
IPv4 ipv4Packet = (IPv4) packet.getPayload();
if (ipv4Packet.getProtocol() == IPv4.PROTOCOL_TCP) {
TCP tcpPacket = (TCP) ipv4Packet.getPayload();
if (tcpPacket.getDestinationPort() == BGP_PORT ||
tcpPacket.getSourcePort() == BGP_PORT) {
forward(context);
}
}
}
}
Example 7
| Source File: OpenstackTroubleshootManager.java From onos with Apache License 2.0 | 5 votes |
|
/**
* Processes the received ICMP packet.
*
* @param context packet context
* @param ethernet ethernet
*/
private void processIcmpPacket(PacketContext context, Ethernet ethernet) {
IPv4 ipPacket = (IPv4) ethernet.getPayload();
ICMP icmp = (ICMP) ipPacket.getPayload();
log.trace("Processing ICMP packet source MAC:{}, source IP:{}," +
"dest MAC:{}, dest IP:{}",
ethernet.getSourceMAC(),
IpAddress.valueOf(ipPacket.getSourceAddress()),
ethernet.getDestinationMAC(),
IpAddress.valueOf(ipPacket.getDestinationAddress()));
String icmpId = icmpId(icmp);
// if the ICMP ID is not contained in ICMP ID set, we do not handle it
if (!icmpIds.contains(icmpId)) {
return;
}
switch (icmp.getIcmpType()) {
case TYPE_ECHO_REPLY:
handleIcmpEchoReply(ipPacket, icmp);
context.block();
icmpIds.remove(icmpId);
break;
default:
break;
}
}
Example 8
| Source File: IcmpHandlerTest.java From onos with Apache License 2.0 | 5 votes |
|
@Test
public void testPing6RemoteGatewaySamePair() {
// 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.processIcmpv6(ETH_REQ_IPV6_SAME, CP2025);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV6_SAME.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV6_SAME.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV6_SAME.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof MPLS);
MPLS mpls = (MPLS) ethernet.getPayload();
assertThat(mpls.getLabel(), is(LOCAL_LEAF1_SID6));
assertTrue(mpls.getPayload() instanceof IPv6);
IPv6 ip = (IPv6) mpls.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV6_SAME.toOctets()));
assertThat(ip.getDestinationAddress(), is(SRC_IPV61.toOctets()));
assertTrue(ip.getPayload() instanceof ICMP6);
ICMP6 icmp = (ICMP6) ip.getPayload();
assertThat(icmp.getIcmpType(), is(ECHO_REPLY));
// Verify behavior
verify(segmentRoutingManager.deviceService);
}
Example 9
| Source File: IcmpHandlerTest.java From onos with Apache License 2.0 | 5 votes |
|
@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 10
| Source File: DhcpManager.java From onos with Apache License 2.0 | 5 votes |
|
@Override
public void process(PacketContext context) {
Ethernet packet = context.inPacket().parsed();
if (packet == null) {
return;
}
if (packet.getEtherType() == Ethernet.TYPE_IPV4) {
IPv4 ipv4Packet = (IPv4) packet.getPayload();
if (ipv4Packet.getProtocol() == IPv4.PROTOCOL_UDP) {
UDP udpPacket = (UDP) ipv4Packet.getPayload();
if (udpPacket.getDestinationPort() == UDP.DHCP_SERVER_PORT &&
udpPacket.getSourcePort() == UDP.DHCP_CLIENT_PORT) {
// This is meant for the dhcp server so process the packet here.
DHCP dhcpPayload = (DHCP) udpPacket.getPayload();
processDhcpPacket(context, dhcpPayload);
}
}
} else if (packet.getEtherType() == Ethernet.TYPE_ARP) {
ARP arpPacket = (ARP) packet.getPayload();
if ((arpPacket.getOpCode() == ARP.OP_REQUEST) &&
Objects.equals(myIP, Ip4Address.valueOf(arpPacket.getTargetProtocolAddress()))) {
processArpPacket(context, packet);
}
}
}
Example 11
| Source File: IcmpHandler.java From onos with Apache License 2.0 | 5 votes |
|
private void sendIcmpResponse(Ethernet icmpRequest, ConnectPoint outport) {
Ethernet icmpReplyEth = new Ethernet();
IPv4 icmpRequestIpv4 = (IPv4) icmpRequest.getPayload();
IPv4 icmpReplyIpv4 = new IPv4();
int destAddress = icmpRequestIpv4.getDestinationAddress();
icmpReplyIpv4.setDestinationAddress(icmpRequestIpv4.getSourceAddress());
icmpReplyIpv4.setSourceAddress(destAddress);
icmpReplyIpv4.setTtl((byte) 64);
icmpReplyIpv4.setChecksum((short) 0);
ICMP icmpReply = new ICMP();
icmpReply.setPayload(((ICMP) icmpRequestIpv4.getPayload()).getPayload());
icmpReply.setIcmpType(ICMP.TYPE_ECHO_REPLY);
icmpReply.setIcmpCode(ICMP.CODE_ECHO_REPLY);
icmpReply.setChecksum((short) 0);
icmpReplyIpv4.setPayload(icmpReply);
icmpReplyEth.setPayload(icmpReplyIpv4);
icmpReplyEth.setEtherType(Ethernet.TYPE_IPV4);
icmpReplyEth.setDestinationMACAddress(icmpRequest.getSourceMACAddress());
icmpReplyEth.setSourceMACAddress(icmpRequest.getDestinationMACAddress());
icmpReplyEth.setVlanID(icmpRequest.getVlanID());
sendPacketOut(outport, icmpReplyEth);
}
Example 12
| Source File: IcmpHandlerTest.java From onos with Apache License 2.0 | 5 votes |
|
@Test
public void testPing4GatewayPair() {
// 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_GATEWAY_PAIR, CP2011);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV4_GATEWAY_PAIR.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV4_GATEWAY_PAIR.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV4_GATEWAY_PAIR.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof IPv4);
IPv4 ip = (IPv4) ethernet.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV4_GATEWAY_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 13
| Source File: RouterAdvertisementManager.java From onos with Apache License 2.0 | 5 votes |
|
@Override
public void run() {
// TODO : Validate Router Solicitation
// Pause already running unsolicited RA threads in received connect point
ConnectPoint connectPoint = packet.receivedFrom();
List<InterfaceIpAddress> addresses = deactivateRouterAdvertisement(connectPoint);
/* Multicast RA(ie. Unsolicited RA) TX time is not preciously tracked so to make sure that
* Unicast RA(ie. Router Solicitation Response) is TXed before Mulicast RA
* logic adapted here is disable Mulicast RA, TX Unicast RA and then restore Multicast RA.
*/
log.trace("Processing Router Solicitations from {}", connectPoint);
try {
Ethernet ethernet = packet.parsed();
IPv6 ipv6 = (IPv6) ethernet.getPayload();
RAWorkerThread worker = new RAWorkerThread(connectPoint,
addresses, raThreadDelay, ethernet.getSourceMAC(), ipv6.getSourceAddress());
// TODO : Estimate TX time as in RFC 4861, Section 6.2.6 and schedule TX based on it
CompletableFuture<Void> sraHandlerFuture = CompletableFuture.runAsync(worker, executors);
sraHandlerFuture.get();
} catch (Exception e) {
log.error("Failed to respond to router solicitation. {}", e);
} finally {
activateRouterAdvertisement(connectPoint, addresses);
log.trace("Restored Unsolicited Router Advertisements on {}", connectPoint);
}
}
Example 14
| Source File: IcmpHandlerTest.java From onos with Apache License 2.0 | 5 votes |
|
@Test
public void testPing6LoopbackPair() {
// 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.processIcmpv6(ETH_REQ_IPV6_LOOPBACK_PAIR, CP2021);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV6_LOOPBACK_PAIR.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV6_LOOPBACK_PAIR.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV6_LOOPBACK_PAIR.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof IPv6);
IPv6 ip = (IPv6) ethernet.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV6_LOOPBACK_PAIR.toOctets()));
assertThat(ip.getDestinationAddress(), is(SRC_IPV61.toOctets()));
assertTrue(ip.getPayload() instanceof ICMP6);
ICMP6 icmp = (ICMP6) ip.getPayload();
assertThat(icmp.getIcmpType(), is(ECHO_REPLY));
// Verify behavior
verify(segmentRoutingManager.deviceService);
}
Example 15
| Source File: NeighborSolicitationTest.java From onos with Apache License 2.0 | 5 votes |
|
/**
* Tests DAD neighbor solicitation.
* Source IP should be all-zero.
*/
@Test
public void testBuildNdpSolicitDad() throws Exception {
Ethernet ethPacket = NeighborSolicitation.buildNdpSolicit(TARGET_IP,
Ip6Address.ZERO, DST_IP, SRC_MAC, DST_MAC, VLAN_ID);
IPv6 ipPacket = (IPv6) ethPacket.getPayload();
ICMP6 icmp6Packet = (ICMP6) ipPacket.getPayload();
NeighborSolicitation nsPacket = (NeighborSolicitation) icmp6Packet.getPayload();
assertEquals("DAD NS should have no option", 0, nsPacket.getOptions().size());
}
Example 16
| Source File: PimPacketHandler.java From onos with Apache License 2.0 | 5 votes |
|
/**
* Sanitize and process the packet.
* TODO: replace ConnectPoint with PIMInterface when PIMInterface has been added.
*
* @param ethPkt the packet starting with the Ethernet header.
* @param pimi the PIM Interface the packet arrived on.
*/
public void processPacket(Ethernet ethPkt, PimInterface pimi) {
checkNotNull(ethPkt);
checkNotNull(pimi);
// Sanitize the ethernet header to ensure it is IPv4. IPv6 we'll deal with later
if (ethPkt.getEtherType() != Ethernet.TYPE_IPV4) {
return;
}
// Get the IP header
IPv4 ip = (IPv4) ethPkt.getPayload();
if (ip.getProtocol() != IPv4.PROTOCOL_PIM) {
return;
}
// Get the address of our the neighbor that sent this packet to us.
IpAddress nbraddr = IpAddress.valueOf(ip.getDestinationAddress());
if (log.isTraceEnabled()) {
log.trace("Packet {} received on port {}", nbraddr, pimi);
}
// Get the PIM header
PIM pim = (PIM) ip.getPayload();
checkNotNull(pim);
// Process the pim packet
switch (pim.getPimMsgType()) {
case PIM.TYPE_HELLO:
pimi.processHello(ethPkt);
break;
case PIM.TYPE_JOIN_PRUNE_REQUEST:
pimi.processJoinPrune(ethPkt);
log.debug("Received a PIM Join/Prune message");
break;
default:
log.debug("Received unsupported PIM type: {}", pim.getPimMsgType());
break;
}
}
Example 17
| Source File: IcmpHandlerTest.java From onos with Apache License 2.0 | 5 votes |
|
@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 18
| Source File: OpenstackRoutingSnatHandler.java From onos with Apache License 2.0 | 4 votes |
|
private void processSnatPacket(PacketContext context, Ethernet eth) {
if (getStatefulSnatFlag()) {
return;
}
IPv4 iPacket = (IPv4) eth.getPayload();
InboundPacket packetIn = context.inPacket();
int patPort = getPortNum();
InstancePort srcInstPort = instancePortService.instancePort(eth.getSourceMAC());
if (srcInstPort == null) {
log.error(ERR_PACKET_IN + "source host(MAC:{}) does not exist",
eth.getSourceMAC());
return;
}
IpAddress srcIp = IpAddress.valueOf(iPacket.getSourceAddress());
Subnet srcSubnet = getSourceSubnet(srcInstPort, srcIp);
Router osRouter = getRouterFromSubnet(srcSubnet, osRouterService);
if (osRouter == null || osRouter.getExternalGatewayInfo() == null) {
// this router does not have external connectivity
log.warn("No router is associated with the given subnet {}", srcSubnet);
return;
}
IpAddress externalGatewayIp =
externalGatewayIpSnatEnabled(osRouter, osNetworkAdminService);
if (externalGatewayIp == null) {
return;
}
ExternalPeerRouter externalPeerRouter = externalPeerRouterFromSubnet(
srcSubnet, osRouterService, osNetworkService);
if (externalPeerRouter == null) {
return;
}
populateSnatFlowRules(context.inPacket(),
srcInstPort,
TpPort.tpPort(patPort),
externalGatewayIp, externalPeerRouter);
packetOut(eth.duplicate(),
packetIn.receivedFrom().deviceId(),
patPort,
externalGatewayIp, externalPeerRouter);
}
Example 19
| Source File: VirtualPublicHosts.java From onos with Apache License 2.0 | 4 votes |
|
@Override
public void process(PacketContext context) {
InboundPacket pkt = context.inPacket();
Ethernet ethPkt = pkt.parsed();
// Only handle the ARP packets
if (ethPkt == null || ethPkt.getEtherType() != Ethernet.TYPE_ARP) {
return;
}
ARP arpPacket = (ARP) ethPkt.getPayload();
// Only handle ARP request packets
if (arpPacket.getOpCode() != ARP.OP_REQUEST) {
return;
}
Ip4Address targetIpAddress = Ip4Address
.valueOf(arpPacket.getTargetProtocolAddress());
// Only handle an ARP request when the target IP address inside is
// an assigned public IP address
if (!vbngConfigService.isAssignedPublicIpAddress(targetIpAddress)) {
return;
}
MacAddress virtualHostMac =
vbngConfigService.getPublicFacingMac();
if (virtualHostMac == null) {
return;
}
ConnectPoint srcConnectPoint = pkt.receivedFrom();
Ethernet eth = ARP.buildArpReply(targetIpAddress,
virtualHostMac,
ethPkt);
TrafficTreatment.Builder builder =
DefaultTrafficTreatment.builder();
builder.setOutput(srcConnectPoint.port());
packetService.emit(new DefaultOutboundPacket(
srcConnectPoint.deviceId(),
builder.build(),
ByteBuffer.wrap(eth.serialize())));
}
Example 20
| Source File: MaoRoutingManager.java From ONOS_LoadBalance_Routing_Forward with Apache License 2.0 | 4 votes |
|
@Override
public void process(PacketContext context) {
if (context.isHandled()) {
return;
}
Ethernet pkt = context.inPacket().parsed();
if (pkt.getEtherType() == Ethernet.TYPE_IPV4) {
HostId srcHostId = HostId.hostId(pkt.getSourceMAC());
HostId dstHostId = HostId.hostId(pkt.getDestinationMAC());
Set<Path> paths = getLoadBalancePaths(srcHostId, dstHostId);
if (paths.isEmpty()) {
log.warn("paths is Empty !!! no Path is available");
context.block();
return;
}
IPv4 ipPkt = (IPv4) pkt.getPayload();
TrafficSelector selector = DefaultTrafficSelector.builder()
.matchEthType(Ethernet.TYPE_IPV4)
.matchIPSrc(IpPrefix.valueOf(ipPkt.getSourceAddress(), 32))
.matchIPDst(IpPrefix.valueOf(ipPkt.getDestinationAddress(), 32))
.build();
boolean isContain;
// synchronized (intentMap) {
isContain = intentMap.containsKey(selector.criteria());
// }
if (isContain) {
context.block();
return;
}
Path result = paths.iterator().next();
log.info("\n------ Mao Path Info ------\nSrc:{}, Dst:{}\n{}",
IpPrefix.valueOf(ipPkt.getSourceAddress(), 32).toString(),
IpPrefix.valueOf(ipPkt.getDestinationAddress(), 32),
result.links().toString().replace("Default", "\n"));
PathIntent pathIntent = PathIntent.builder()
.path(result)
.appId(appId)
.priority(65432)
.selector(selector)
.treatment(DefaultTrafficTreatment.emptyTreatment())
.build();
intentService.submit(pathIntent);
// synchronized (intentMap) {
intentMap.put(selector.criteria(), pathIntent);
// }
context.block();
}
}
