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/*
* Copyright 2019-present Open Networking Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.segmentrouting;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.google.common.collect.ImmutableSet;
import org.junit.Before;
import org.junit.Test;
import org.onlab.packet.Ethernet;
import org.onlab.packet.ICMP;
import org.onlab.packet.ICMP6;
import org.onlab.packet.IPv4;
import org.onlab.packet.IPv6;
import org.onlab.packet.MPLS;
import org.onosproject.TestApplicationId;
import org.onosproject.core.ApplicationId;
import org.onosproject.net.config.ConfigApplyDelegate;
import org.onosproject.net.config.basics.InterfaceConfig;
import org.onosproject.net.device.DeviceService;
import org.onosproject.segmentrouting.config.DeviceConfiguration;
import org.onosproject.segmentrouting.config.SegmentRoutingAppConfig;
import org.onosproject.segmentrouting.config.SegmentRoutingDeviceConfig;
import java.util.Collections;
import static org.easymock.EasyMock.*;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.*;
import static org.onlab.packet.ICMP.*;
import static org.onlab.packet.ICMP6.ECHO_REPLY;
import static org.onosproject.segmentrouting.TestUtils.*;
/**
* Tests for IcmpHandler.
*/
public class IcmpHandlerTest {
private IcmpHandler icmpHandler;
private MockPacketService packetService;
private SegmentRoutingManager segmentRoutingManager;
private ApplicationId testApplicationId = TestApplicationId.create("test");
@Before
public void setUp() {
// Init
ObjectMapper mapper = new ObjectMapper();
ConfigApplyDelegate delegate = config -> { };
// Setup configuration for app
SegmentRoutingAppConfig appConfig = new SegmentRoutingAppConfig();
JsonNode appTree = mapper.createObjectNode();
appConfig.init(testApplicationId, "icmp-handler-test", appTree, mapper, delegate);
appConfig.setSuppressSubnet(Collections.emptySet());
// Setup configuration for the devices
SegmentRoutingDeviceConfig remoteLeafConfig = new SegmentRoutingDeviceConfig();
JsonNode remoteLeafTree = mapper.createObjectNode();
remoteLeafConfig.init(REMOTE_LEAF, "icmp-handler-test", remoteLeafTree, mapper, delegate);
remoteLeafConfig.setNodeSidIPv4(REMOTE_LEAF_SID4)
.setNodeSidIPv6(REMOTE_LEAF_SID6)
.setRouterIpv4(REMOTE_LEAF_LB4)
.setRouterIpv6(REMOTE_LEAF_LB6)
.setIsEdgeRouter(true)
.setRouterMac(REMOTE_MAC.toString());
SegmentRoutingDeviceConfig localLeafConfig = new SegmentRoutingDeviceConfig();
JsonNode localLeafTree = mapper.createObjectNode();
localLeafConfig.init(LOCAL_LEAF, "icmp-handler-test", localLeafTree, mapper, delegate);
localLeafConfig.setNodeSidIPv4(LOCAL_LEAF_SID4)
.setRouterIpv4(LOCAL_LEAF_LB4)
.setNodeSidIPv6(LOCAL_LEAF_SID6)
.setRouterIpv6(LOCAL_LEAF_LB6)
.setIsEdgeRouter(true)
.setRouterMac(LOCAL_MAC.toString());
SegmentRoutingDeviceConfig localLeaf1Config = new SegmentRoutingDeviceConfig();
JsonNode localLeaf1Tree = mapper.createObjectNode();
localLeaf1Config.init(LOCAL_LEAF1, "icmp-handler-test", localLeaf1Tree, mapper, delegate);
localLeaf1Config.setNodeSidIPv4(LOCAL_LEAF1_SID4)
.setRouterIpv4(LOCAL_LEAF1_LB4)
.setNodeSidIPv6(LOCAL_LEAF1_SID6)
.setRouterIpv6(LOCAL_LEAF1_LB6)
.setIsEdgeRouter(true)
.setRouterMac(LOCAL_MAC1.toString())
.setPairDeviceId(LOCAL_LEAF2)
.setPairLocalPort(P3);
SegmentRoutingDeviceConfig localLeaf2Config = new SegmentRoutingDeviceConfig();
JsonNode localLeaf2Tree = mapper.createObjectNode();
localLeaf2Config.init(LOCAL_LEAF2, "icmp-handler-test", localLeaf2Tree, mapper, delegate);
localLeaf2Config.setNodeSidIPv4(LOCAL_LEAF2_SID4)
.setRouterIpv4(LOCAL_LEAF2_LB4)
.setNodeSidIPv6(LOCAL_LEAF2_SID6)
.setRouterIpv6(LOCAL_LEAF2_LB6)
.setIsEdgeRouter(true)
.setRouterMac(LOCAL_MAC2.toString())
.setPairDeviceId(LOCAL_LEAF1)
.setPairLocalPort(P3);
// Setup configuration for ports
InterfaceConfig remoteLeafPorts1Config = new InterfaceConfig();
ArrayNode remoteLeafPorts1Tree = mapper.createArrayNode();
remoteLeafPorts1Config.init(CP12, "icmp-handler-test", remoteLeafPorts1Tree, mapper, delegate);
remoteLeafPorts1Config.addInterface(INTF1);
InterfaceConfig remoteLeafPorts2Config = new InterfaceConfig();
ArrayNode remoteLeafPorts2Tree = mapper.createArrayNode();
remoteLeafPorts2Config.init(CP13, "icmp-handler-test", remoteLeafPorts2Tree, mapper, delegate);
remoteLeafPorts2Config.addInterface(INTF2);
InterfaceConfig localLeafPortsConfig = new InterfaceConfig();
ArrayNode localLeafPortsTree = mapper.createArrayNode();
localLeafPortsConfig.init(CP1011, "icmp-handler-test", localLeafPortsTree, mapper, delegate);
localLeafPortsConfig.addInterface(INTF111);
InterfaceConfig localLeaf1PortsConfig = new InterfaceConfig();
ArrayNode localLeaf1PortsTree = mapper.createArrayNode();
localLeaf1PortsConfig.init(CP2011, "icmp-handler-test", localLeaf1PortsTree, mapper, delegate);
localLeaf1PortsConfig.addInterface(INTF211);
InterfaceConfig localLeaf2Ports1Config = new InterfaceConfig();
ArrayNode localLeaf2Ports1Tree = mapper.createArrayNode();
localLeaf2Ports1Config.init(CP2021, "icmp-handler-test", localLeaf2Ports1Tree, mapper, delegate);
localLeaf2Ports1Config.addInterface(INTF212);
InterfaceConfig localLeaf2Ports2Config = new InterfaceConfig();
ArrayNode localLeaf2Ports2Tree = mapper.createArrayNode();
localLeaf2Ports2Config.init(CP2024, "icmp-handler-test", localLeaf2Ports2Tree, mapper, delegate);
localLeaf2Ports2Config.addInterface(INTF213);
// Apply config
MockNetworkConfigRegistry mockNetworkConfigRegistry = new MockNetworkConfigRegistry();
mockNetworkConfigRegistry.applyConfig(remoteLeafConfig);
mockNetworkConfigRegistry.applyConfig(remoteLeafPorts1Config);
mockNetworkConfigRegistry.applyConfig(remoteLeafPorts2Config);
mockNetworkConfigRegistry.applyConfig(localLeafConfig);
mockNetworkConfigRegistry.applyConfig(localLeafPortsConfig);
mockNetworkConfigRegistry.applyConfig(localLeaf1Config);
mockNetworkConfigRegistry.applyConfig(localLeaf1PortsConfig);
mockNetworkConfigRegistry.applyConfig(localLeaf2Config);
mockNetworkConfigRegistry.applyConfig(localLeaf2Ports1Config);
mockNetworkConfigRegistry.applyConfig(localLeaf2Ports2Config);
segmentRoutingManager = new SegmentRoutingManager();
segmentRoutingManager.appId = testApplicationId;
packetService = new MockPacketService();
segmentRoutingManager.packetService = packetService;
segmentRoutingManager.cfgService = mockNetworkConfigRegistry;
segmentRoutingManager.neighbourResolutionService = new MockNeighbourResolutionService();
segmentRoutingManager.interfaceService = new MockInterfaceService(ImmutableSet.of(
INTF1, INTF2, INTF111, INTF211, INTF212, INTF213));
segmentRoutingManager.deviceConfiguration = new DeviceConfiguration(segmentRoutingManager);
segmentRoutingManager.ipHandler = new IpHandler(segmentRoutingManager);
segmentRoutingManager.deviceService = createMock(DeviceService.class);
segmentRoutingManager.routeService = new MockRouteService(ROUTE_STORE);
segmentRoutingManager.hostService = new MockHostService(Collections.emptySet());
icmpHandler = new IcmpHandler(segmentRoutingManager);
}
// Ping to our gateway
@Test
public void testPing4MyGateway() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(REMOTE_LEAF))
.andReturn(true)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmp(ETH_REQ_IPV4_MY, CP12);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV4_MY.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV4_MY.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV4_MY.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof IPv4);
IPv4 ip = (IPv4) ethernet.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV4.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);
}
// Ping6 to our gateway
@Test
public void testPing6MyGateway() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(REMOTE_LEAF))
.andReturn(true)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmpv6(ETH_REQ_IPV6_MY, CP12);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV6_MY.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV6_MY.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV6_MY.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof IPv6);
IPv6 ip = (IPv6) ethernet.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV6.toOctets()));
assertThat(ip.getDestinationAddress(), is(SRC_IPV6_MY.toOctets()));
assertTrue(ip.getPayload() instanceof ICMP6);
ICMP6 icmp = (ICMP6) ip.getPayload();
assertThat(icmp.getIcmpType(), is(ECHO_REPLY));
// Verify behavior
verify(segmentRoutingManager.deviceService);
}
// 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);
}
// Ping6 to a gateway attached to our leaf
@Test
public void testPing6LocalGateway() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(REMOTE_LEAF))
.andReturn(true)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmpv6(ETH_REQ_IPV6_LOCAL, CP12);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV6_LOCAL.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV6_LOCAL.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV6_LOCAL.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof IPv6);
IPv6 ip = (IPv6) ethernet.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV6_LOCAL.toOctets()));
assertThat(ip.getDestinationAddress(), is(SRC_IPV6_MY.toOctets()));
assertTrue(ip.getPayload() instanceof ICMP6);
ICMP6 icmp = (ICMP6) ip.getPayload();
assertThat(icmp.getIcmpType(), is(ECHO_REPLY));
// Verify behavior
verify(segmentRoutingManager.deviceService);
}
// 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);
}
// Ping6 to a gateway attached only to the pair leaf (routing through spine)
@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);
}
// Ping to a gateway but destination leaf is down
@Test
public void testPing4RemoteGatewayLeafDown() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF))
.andReturn(false)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmp(ETH_REQ_IPV4, CP11);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV4.getSourceMAC());
assertNull(ethernet);
// Verify behavior
verify(segmentRoutingManager.deviceService);
}
// Ping6 to a gateway but destination leaf is down
@Test
public void testPing6RemoteGatewayLeafDown() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF))
.andReturn(false)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmpv6(ETH_REQ_IPV6, CP11);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV6.getSourceMAC());
assertNull(ethernet);
// Verify behavior
verify(segmentRoutingManager.deviceService);
}
// Ping to a gateway but one of the destination leaf is down
@Test
public void testPing4RemoteGatewayLeaf1Down() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF1))
.andReturn(false)
.times(1);
expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF2))
.andReturn(true)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmp(ETH_REQ_IPV41, CP11);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV41.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV41.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV41.getSourceMAC()));
assertThat(ethernet.getEtherType(), is(Ethernet.MPLS_UNICAST));
assertTrue(ethernet.getPayload() instanceof MPLS);
MPLS mpls = (MPLS) ethernet.getPayload();
assertThat(mpls.getLabel(), is(LOCAL_LEAF2_SID4));
assertTrue(mpls.getPayload() instanceof IPv4);
IPv4 ip = (IPv4) mpls.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV4.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);
}
// Ping6 to a gateway but one of the destination leaf is down
@Test
public void testPing6RemoteGatewayLeaf2Down() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF1))
.andReturn(true)
.times(1);
expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF2))
.andReturn(false)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmpv6(ETH_REQ_IPV61, CP11);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV61.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV61.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV61.getSourceMAC()));
assertThat(ethernet.getEtherType(), is(Ethernet.MPLS_UNICAST));
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.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);
}
// Ping6 to a link local address
@Test
public void testPing6LinkLocalAddress() {
// Process
icmpHandler.processIcmpv6(ETH_REQ_IPV6_LL, CP12);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV6_LL.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV6_LL.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV6_LL.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof IPv6);
IPv6 ip = (IPv6) ethernet.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV6_LL.toOctets()));
assertThat(ip.getDestinationAddress(), is(SRC_IPV6_LL.toOctets()));
assertTrue(ip.getPayload() instanceof ICMP6);
ICMP6 icmp = (ICMP6) ip.getPayload();
assertThat(icmp.getIcmpType(), is(ECHO_REPLY));
}
// Ping to the looback of our leaf
@Test
public void testPing4Loopback() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(REMOTE_LEAF))
.andReturn(true)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmp(ETH_REQ_IPV4_LOOPBACK, CP12);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV4_LOOPBACK.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV4_LOOPBACK.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV4_LOOPBACK.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof IPv4);
IPv4 ip = (IPv4) ethernet.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV4_LOOPBACK.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);
}
// Ping6 to the looback of our leaf
@Test
public void testPing6Loopback() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(REMOTE_LEAF))
.andReturn(true)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmpv6(ETH_REQ_IPV6_LOOPBACK, CP12);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV6_LOOPBACK.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV6_LOOPBACK.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV6_LOOPBACK.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof IPv6);
IPv6 ip = (IPv6) ethernet.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV6_LOOPBACK.toOctets()));
assertThat(ip.getDestinationAddress(), is(SRC_IPV6_MY.toOctets()));
assertTrue(ip.getPayload() instanceof ICMP6);
ICMP6 icmp = (ICMP6) ip.getPayload();
assertThat(icmp.getIcmpType(), is(ECHO_REPLY));
// Verify behavior
verify(segmentRoutingManager.deviceService);
}
// 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);
}
// Ping6 to the looback of our leaf (pair)
@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);
}
// 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);
}
// Ping6 to the loopback of the leaf but hashing of the bond interfaces sends to wrong leaf
@Test
public void testPing6LoopbackPairDifferentLeaf() {
// 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, CP2011);
// 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);
}
// Ping loopback of a destination that is down but
// hashing of the bond interfaces sends to other leaf
@Test
public void testPing4LoopbackPairDifferentLeafDown() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF1))
.andReturn(false)
.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);
}
// Ping6 loopback of a destination that is down but
// hashing of the bond interfaces sends to other leaf
@Test
public void testPing6LoopbackPairDifferentLeafDown() {
// Expected behavior
expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF1))
.andReturn(true)
.times(1);
expect(segmentRoutingManager.deviceService.isAvailable(LOCAL_LEAF2))
.andReturn(false)
.times(1);
replay(segmentRoutingManager.deviceService);
// Process
icmpHandler.processIcmpv6(ETH_REQ_IPV6_LOOPBACK_PAIR, CP2011);
// 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);
}
// Ping to a dh gateway
@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);
}
// Ping6 to a dh gateway
@Test
public void testPing6GatewayPair() {
// 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_GATEWAY_PAIR, CP2021);
// Verify packet-out
Ethernet ethernet = packetService.getEthernetPacket(ETH_REQ_IPV6_GATEWAY_PAIR.getSourceMAC());
assertNotNull(ethernet);
assertThat(ethernet.getSourceMAC(), is(ETH_REQ_IPV6_GATEWAY_PAIR.getDestinationMAC()));
assertThat(ethernet.getDestinationMAC(), is(ETH_REQ_IPV6_GATEWAY_PAIR.getSourceMAC()));
assertTrue(ethernet.getPayload() instanceof IPv6);
IPv6 ip = (IPv6) ethernet.getPayload();
assertThat(ip.getSourceAddress(), is(DST_IPV6_GATEWAY_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);
}
}