| /* |
| * Copyright 2016-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 org.onlab.packet.EthType; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.IpPrefix; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.VlanId; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Host; |
| import org.onosproject.net.HostLocation; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.host.HostEvent; |
| import org.onosproject.net.host.HostService; |
| import org.onosproject.net.host.ProbeMode; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.collect.Sets; |
| |
| import java.util.HashSet; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| /** |
| * Handles host-related events. |
| */ |
| public class HostHandler { |
| private static final Logger log = LoggerFactory.getLogger(HostHandler.class); |
| |
| protected final SegmentRoutingManager srManager; |
| private HostService hostService; |
| |
| /** |
| * Constructs the HostHandler. |
| * |
| * @param srManager Segment Routing manager |
| */ |
| HostHandler(SegmentRoutingManager srManager) { |
| this.srManager = srManager; |
| hostService = srManager.hostService; |
| } |
| |
| protected void init(DeviceId devId) { |
| hostService.getHosts().forEach(host -> |
| host.locations().stream() |
| .filter(location -> location.deviceId().equals(devId) || |
| location.deviceId().equals(srManager.getPairDeviceId(devId).orElse(null))) |
| .forEach(location -> processHostAddedAtLocation(host, location)) |
| ); |
| } |
| |
| void processHostAddedEvent(HostEvent event) { |
| processHostAdded(event.subject()); |
| } |
| |
| private void processHostAdded(Host host) { |
| host.locations().forEach(location -> processHostAddedAtLocation(host, location)); |
| // ensure dual-homed host locations have viable uplinks |
| if (host.locations().size() > 1 || srManager.singleHomedDown) { |
| host.locations().forEach(loc -> { |
| if (srManager.mastershipService.isLocalMaster(loc.deviceId())) { |
| srManager.linkHandler.checkUplinksForHost(loc); |
| } |
| }); |
| } |
| } |
| |
| void processHostAddedAtLocation(Host host, HostLocation location) { |
| checkArgument(host.locations().contains(location), "{} is not a location of {}", location, host); |
| |
| MacAddress hostMac = host.mac(); |
| VlanId hostVlanId = host.vlan(); |
| Set<HostLocation> locations = host.locations(); |
| Set<IpAddress> ips = host.ipAddresses(); |
| log.info("Host {}/{} is added at {}", hostMac, hostVlanId, locations); |
| |
| if (isDoubleTaggedHost(host)) { |
| ips.forEach(ip -> |
| processDoubleTaggedRoutingRule(location.deviceId(), location.port(), hostMac, |
| host.innerVlan(), hostVlanId, host.tpid(), ip, false) |
| ); |
| } else { |
| processBridgingRule(location.deviceId(), location.port(), hostMac, hostVlanId, false); |
| ips.forEach(ip -> |
| processRoutingRule(location.deviceId(), location.port(), hostMac, hostVlanId, ip, false) |
| ); |
| } |
| |
| // Use the pair link temporarily before the second location of a dual-homed host shows up. |
| // This do not affect single-homed hosts since the flow will be blocked in |
| // processBridgingRule or processRoutingRule due to VLAN or IP mismatch respectively |
| srManager.getPairDeviceId(location.deviceId()).ifPresent(pairDeviceId -> { |
| if (host.locations().stream().noneMatch(l -> l.deviceId().equals(pairDeviceId))) { |
| srManager.getPairLocalPort(pairDeviceId).ifPresent(pairRemotePort -> { |
| // NOTE: Since the pairLocalPort is trunk port, use assigned vlan of original port |
| // when the host is untagged |
| VlanId vlanId = vlanForPairPort(hostVlanId, location); |
| if (vlanId == null) { |
| return; |
| } |
| |
| processBridgingRule(pairDeviceId, pairRemotePort, hostMac, vlanId, false); |
| ips.forEach(ip -> processRoutingRule(pairDeviceId, pairRemotePort, hostMac, vlanId, |
| ip, false)); |
| |
| if (srManager.activeProbing) { |
| probe(host, location, pairDeviceId, pairRemotePort); |
| } |
| }); |
| } |
| }); |
| |
| int nextId = srManager.getMacVlanNextObjectiveId(location.deviceId(), hostMac, hostVlanId, null, false); |
| if (nextId != -1) { |
| VlanId vlanId = Optional.ofNullable(srManager.getInternalVlanId(location)).orElse(hostVlanId); |
| log.debug(" Updating next objective for device {}, host {}/{}, port {}, nextid {}", |
| location.deviceId(), hostMac, vlanId, location.port(), nextId); |
| srManager.updateMacVlanTreatment(location.deviceId(), hostMac, vlanId, |
| location.port(), nextId); |
| } |
| } |
| |
| void processHostRemovedEvent(HostEvent event) { |
| processHostRemoved(event.subject()); |
| } |
| |
| private void processHostRemoved(Host host) { |
| MacAddress hostMac = host.mac(); |
| VlanId hostVlanId = host.vlan(); |
| Set<HostLocation> locations = host.locations(); |
| Set<IpAddress> ips = host.ipAddresses(); |
| log.info("Host {}/{} is removed from {}", hostMac, hostVlanId, locations); |
| |
| locations.forEach(location -> { |
| if (isDoubleTaggedHost(host)) { |
| ips.forEach(ip -> |
| processDoubleTaggedRoutingRule(location.deviceId(), location.port(), hostMac, |
| host.innerVlan(), hostVlanId, host.tpid(), ip, true) |
| ); |
| } else { |
| processBridgingRule(location.deviceId(), location.port(), hostMac, hostVlanId, true); |
| ips.forEach(ip -> |
| processRoutingRule(location.deviceId(), location.port(), hostMac, hostVlanId, ip, true) |
| ); |
| } |
| |
| // Also remove redirection flows on the pair device if exists. |
| Optional<DeviceId> pairDeviceId = srManager.getPairDeviceId(location.deviceId()); |
| Optional<PortNumber> pairLocalPort = srManager.getPairLocalPort(location.deviceId()); |
| if (pairDeviceId.isPresent() && pairLocalPort.isPresent()) { |
| // NOTE: Since the pairLocalPort is trunk port, use assigned vlan of original port |
| // when the host is untagged |
| VlanId vlanId = vlanForPairPort(hostVlanId, location); |
| if (vlanId == null) { |
| return; |
| } |
| |
| processBridgingRule(pairDeviceId.get(), pairLocalPort.get(), hostMac, vlanId, true); |
| ips.forEach(ip -> |
| processRoutingRule(pairDeviceId.get(), pairLocalPort.get(), hostMac, vlanId, |
| ip, true)); |
| } |
| |
| // Delete prefix from sr-device-subnet when the next hop host is removed |
| srManager.routeService.getRouteTables().forEach(tableId -> { |
| srManager.routeService.getRoutes(tableId).forEach(routeInfo -> { |
| if (routeInfo.allRoutes().stream().anyMatch(rr -> ips.contains(rr.nextHop()))) { |
| log.debug("HostRemoved. removeSubnet {}, {}", location, routeInfo.prefix()); |
| srManager.deviceConfiguration.removeSubnet(location, routeInfo.prefix()); |
| } |
| }); |
| }); |
| |
| }); |
| } |
| |
| void processHostMovedEvent(HostEvent event) { |
| Host host = event.subject(); |
| MacAddress hostMac = host.mac(); |
| VlanId hostVlanId = host.vlan(); |
| Set<HostLocation> prevLocations = event.prevSubject().locations(); |
| Set<IpAddress> prevIps = event.prevSubject().ipAddresses(); |
| Set<HostLocation> newLocations = host.locations(); |
| Set<IpAddress> newIps = host.ipAddresses(); |
| EthType hostTpid = host.tpid(); |
| boolean doubleTaggedHost = isDoubleTaggedHost(host); |
| |
| log.info("Host {}/{} is moved from {} to {}", hostMac, hostVlanId, prevLocations, newLocations); |
| Set<DeviceId> newDeviceIds = newLocations.stream().map(HostLocation::deviceId) |
| .collect(Collectors.toSet()); |
| |
| // For each old location |
| Sets.difference(prevLocations, newLocations).forEach(prevLocation -> { |
| // Remove routing rules for old IPs |
| Sets.difference(prevIps, newIps).forEach(ip -> { |
| if (doubleTaggedHost) { |
| processDoubleTaggedRoutingRule(prevLocation.deviceId(), prevLocation.port(), |
| hostMac, host.innerVlan(), hostVlanId, hostTpid, ip, true); |
| } else { |
| processRoutingRule(prevLocation.deviceId(), prevLocation.port(), hostMac, hostVlanId, |
| ip, true); |
| } |
| }); |
| |
| // Redirect the flows to pair link if configured |
| // Note: Do not continue removing any rule |
| Optional<DeviceId> pairDeviceId = srManager.getPairDeviceId(prevLocation.deviceId()); |
| Optional<PortNumber> pairLocalPort = srManager.getPairLocalPort(prevLocation.deviceId()); |
| if (pairDeviceId.isPresent() && pairLocalPort.isPresent() && |
| newLocations.stream().anyMatch(location -> location.deviceId().equals(pairDeviceId.get())) && |
| newLocations.stream().noneMatch(location -> location.deviceId().equals(prevLocation.deviceId()))) { |
| // NOTE: Since the pairLocalPort is trunk port, use assigned vlan of original port |
| // when the host is untagged |
| VlanId vlanId = Optional.ofNullable(srManager.getInternalVlanId(prevLocation)).orElse(hostVlanId); |
| |
| processBridgingRule(prevLocation.deviceId(), pairLocalPort.get(), hostMac, vlanId, false); |
| newIps.forEach(ip -> |
| processRoutingRule(prevLocation.deviceId(), pairLocalPort.get(), hostMac, vlanId, |
| ip, false)); |
| return; |
| } |
| |
| // Remove flows for unchanged IPs only when the host moves from a switch to another. |
| // Otherwise, do not remove and let the adding part update the old flow |
| if (!newDeviceIds.contains(prevLocation.deviceId())) { |
| processBridgingRule(prevLocation.deviceId(), prevLocation.port(), hostMac, hostVlanId, true); |
| Sets.intersection(prevIps, newIps).forEach(ip -> { |
| if (doubleTaggedHost) { |
| processDoubleTaggedRoutingRule(prevLocation.deviceId(), prevLocation.port(), |
| hostMac, host.innerVlan(), hostVlanId, hostTpid, ip, true); |
| } else { |
| processRoutingRule(prevLocation.deviceId(), prevLocation.port(), |
| hostMac, hostVlanId, ip, true); |
| } |
| }); |
| } |
| |
| // Remove bridging rules if new interface vlan is different from old interface vlan |
| // Otherwise, do not remove and let the adding part update the old flow |
| if (newLocations.stream().noneMatch(newLocation -> { |
| VlanId oldAssignedVlan = srManager.getInternalVlanId(prevLocation); |
| VlanId newAssignedVlan = srManager.getInternalVlanId(newLocation); |
| // Host is tagged and the new location has the host vlan in vlan-tagged |
| return srManager.interfaceService.getTaggedVlanId(newLocation).contains(hostVlanId) || |
| (oldAssignedVlan != null && newAssignedVlan != null && |
| // Host is untagged and the new location has the same assigned vlan |
| oldAssignedVlan.equals(newAssignedVlan)); |
| })) { |
| processBridgingRule(prevLocation.deviceId(), prevLocation.port(), hostMac, hostVlanId, true); |
| } |
| |
| // Remove routing rules for unchanged IPs if none of the subnet of new location contains |
| // the IP. Otherwise, do not remove and let the adding part update the old flow |
| Sets.intersection(prevIps, newIps).forEach(ip -> { |
| if (newLocations.stream().noneMatch(newLocation -> |
| srManager.deviceConfiguration.inSameSubnet(newLocation, ip))) { |
| if (doubleTaggedHost) { |
| processDoubleTaggedRoutingRule(prevLocation.deviceId(), prevLocation.port(), |
| hostMac, host.innerVlan(), hostVlanId, hostTpid, ip, true); |
| } else { |
| processRoutingRule(prevLocation.deviceId(), prevLocation.port(), |
| hostMac, hostVlanId, ip, true); |
| } |
| } |
| }); |
| }); |
| |
| // For each new location, add all new IPs. |
| Sets.difference(newLocations, prevLocations).forEach(newLocation -> { |
| processBridgingRule(newLocation.deviceId(), newLocation.port(), hostMac, hostVlanId, false); |
| newIps.forEach(ip -> { |
| if (doubleTaggedHost) { |
| processDoubleTaggedRoutingRule(newLocation.deviceId(), newLocation.port(), |
| hostMac, host.innerVlan(), hostVlanId, hostTpid, ip, false); |
| } else { |
| processRoutingRule(newLocation.deviceId(), newLocation.port(), hostMac, hostVlanId, |
| ip, false); |
| } |
| }); |
| |
| // Probe on pair device when host move |
| // Majorly for the 2nd step of [1A/x, 1B/x] -> [1A/x, 1B/y] -> [1A/y, 1B/y] |
| // But will also cover [1A/x] -> [1A/y] -> [1A/y, 1B/y] |
| if (srManager.activeProbing) { |
| |
| srManager.getPairDeviceId(newLocation.deviceId()).ifPresent(pairDeviceId -> |
| srManager.getPairLocalPort(pairDeviceId).ifPresent(pairRemotePort -> |
| probe(host, newLocation, pairDeviceId, pairRemotePort) |
| ) |
| ); |
| } |
| }); |
| |
| // For each unchanged location, add new IPs and remove old IPs. |
| Sets.intersection(newLocations, prevLocations).forEach(unchangedLocation -> { |
| Sets.difference(prevIps, newIps).forEach(ip -> { |
| if (doubleTaggedHost) { |
| processDoubleTaggedRoutingRule(unchangedLocation.deviceId(), unchangedLocation.port(), |
| hostMac, host.innerVlan(), hostVlanId, hostTpid, ip, true); |
| } else { |
| processRoutingRule(unchangedLocation.deviceId(), unchangedLocation.port(), |
| hostMac, hostVlanId, ip, true); |
| } |
| }); |
| |
| Sets.difference(newIps, prevIps).forEach(ip -> { |
| if (doubleTaggedHost) { |
| processDoubleTaggedRoutingRule(unchangedLocation.deviceId(), unchangedLocation.port(), |
| hostMac, host.innerVlan(), hostVlanId, hostTpid, ip, false); |
| } else { |
| processRoutingRule(unchangedLocation.deviceId(), unchangedLocation.port(), |
| hostMac, hostVlanId, ip, false); |
| } |
| }); |
| |
| // Verify existing location and see if it is still valid |
| srManager.probingService.probeHost(host, unchangedLocation, ProbeMode.VERIFY); |
| }); |
| |
| // ensure dual-homed host locations have viable uplinks |
| if (newLocations.size() > prevLocations.size() || srManager.singleHomedDown) { |
| newLocations.forEach(loc -> { |
| if (srManager.mastershipService.isLocalMaster(loc.deviceId())) { |
| srManager.linkHandler.checkUplinksForHost(loc); |
| } |
| }); |
| } |
| } |
| |
| void processHostUpdatedEvent(HostEvent event) { |
| Host host = event.subject(); |
| MacAddress hostMac = host.mac(); |
| VlanId hostVlanId = host.vlan(); |
| EthType hostTpid = host.tpid(); |
| Set<HostLocation> locations = host.locations(); |
| Set<IpAddress> prevIps = event.prevSubject().ipAddresses(); |
| Set<IpAddress> newIps = host.ipAddresses(); |
| log.info("Host {}/{} is updated", hostMac, hostVlanId); |
| |
| locations.forEach(location -> { |
| Sets.difference(prevIps, newIps).forEach(ip -> { |
| if (isDoubleTaggedHost(host)) { |
| processDoubleTaggedRoutingRule(location.deviceId(), location.port(), hostMac, |
| host.innerVlan(), hostVlanId, hostTpid, ip, true); |
| } else { |
| processRoutingRule(location.deviceId(), location.port(), hostMac, |
| hostVlanId, ip, true); |
| } |
| }); |
| Sets.difference(newIps, prevIps).forEach(ip -> { |
| if (isDoubleTaggedHost(host)) { |
| processDoubleTaggedRoutingRule(location.deviceId(), location.port(), hostMac, |
| host.innerVlan(), hostVlanId, hostTpid, ip, false); |
| } else { |
| processRoutingRule(location.deviceId(), location.port(), hostMac, |
| hostVlanId, ip, false); |
| } |
| }); |
| }); |
| |
| // Use the pair link temporarily before the second location of a dual-homed host shows up. |
| // This do not affect single-homed hosts since the flow will be blocked in |
| // processBridgingRule or processRoutingRule due to VLAN or IP mismatch respectively |
| locations.forEach(location -> |
| srManager.getPairDeviceId(location.deviceId()).ifPresent(pairDeviceId -> { |
| if (locations.stream().noneMatch(l -> l.deviceId().equals(pairDeviceId))) { |
| Set<IpAddress> ipsToAdd = Sets.difference(newIps, prevIps); |
| Set<IpAddress> ipsToRemove = Sets.difference(prevIps, newIps); |
| |
| srManager.getPairLocalPort(pairDeviceId).ifPresent(pairRemotePort -> { |
| // NOTE: Since the pairLocalPort is trunk port, use assigned vlan of original port |
| // when the host is untagged |
| VlanId vlanId = vlanForPairPort(hostVlanId, location); |
| if (vlanId == null) { |
| return; |
| } |
| |
| ipsToRemove.forEach(ip -> |
| processRoutingRule(pairDeviceId, pairRemotePort, hostMac, vlanId, ip, true) |
| ); |
| ipsToAdd.forEach(ip -> |
| processRoutingRule(pairDeviceId, pairRemotePort, hostMac, vlanId, ip, false) |
| ); |
| |
| if (srManager.activeProbing) { |
| probe(host, location, pairDeviceId, pairRemotePort); |
| } |
| }); |
| } |
| }) |
| ); |
| } |
| |
| /** |
| * When a non-pair port comes up, probe each host on the pair device if |
| * (1) the host is tagged and the tagged vlan of current port contains host vlan; or |
| * (2) the host is untagged and the internal vlan is the same on the host port and current port. |
| * |
| * @param cp connect point |
| */ |
| void processPortUp(ConnectPoint cp) { |
| if (cp.port().equals(srManager.getPairLocalPort(cp.deviceId()).orElse(null))) { |
| return; |
| } |
| if (srManager.activeProbing) { |
| srManager.getPairDeviceId(cp.deviceId()) |
| .ifPresent(pairDeviceId -> srManager.hostService.getConnectedHosts(pairDeviceId).stream() |
| .filter(host -> isHostInVlanOfPort(host, pairDeviceId, cp)) |
| .forEach(host -> srManager.probingService.probeHost(host, cp, ProbeMode.DISCOVER)) |
| ); |
| } |
| } |
| |
| /** |
| * Checks if given host located on given device id matches VLAN config of current port. |
| * |
| * @param host host to check |
| * @param deviceId device id to check |
| * @param cp current connect point |
| * @return true if the host located at deviceId matches the VLAN config on cp |
| */ |
| private boolean isHostInVlanOfPort(Host host, DeviceId deviceId, ConnectPoint cp) { |
| VlanId internalVlan = srManager.getInternalVlanId(cp); |
| Set<VlanId> taggedVlan = srManager.interfaceService.getTaggedVlanId(cp); |
| |
| return taggedVlan.contains(host.vlan()) || |
| (internalVlan != null && host.locations().stream() |
| .filter(l -> l.deviceId().equals(deviceId)) |
| .map(srManager::getInternalVlanId) |
| .anyMatch(internalVlan::equals)); |
| } |
| |
| /** |
| * Send a probe on all locations with the same VLAN on pair device, excluding pair port. |
| * |
| * @param host host to probe |
| * @param location newly discovered host location |
| * @param pairDeviceId pair device id |
| * @param pairRemotePort pair remote port |
| */ |
| private void probe(Host host, ConnectPoint location, DeviceId pairDeviceId, PortNumber pairRemotePort) { |
| //Check if the host still exists in the host store |
| if (hostService.getHost(host.id()) == null) { |
| log.debug("Host entry for host {} no more present. Aborting hostprobe discover for this host", host.id()); |
| return; |
| } |
| |
| VlanId vlanToProbe = host.vlan().equals(VlanId.NONE) ? |
| srManager.getInternalVlanId(location) : host.vlan(); |
| if (srManager.symmetricProbing) { |
| srManager.interfaceService.getInterfaces().stream() |
| .filter(i -> i.vlanTagged().contains(vlanToProbe) || |
| i.vlanUntagged().equals(vlanToProbe) || |
| i.vlanNative().equals(vlanToProbe)) |
| .filter(i -> i.connectPoint().deviceId().equals(pairDeviceId)) |
| .filter(i -> i.connectPoint().port().equals(location.port())) |
| .forEach(i -> { |
| log.debug("Probing host {} on pair device {}", host.id(), i.connectPoint()); |
| srManager.probingService.probeHost(host, i.connectPoint(), ProbeMode.DISCOVER); |
| }); |
| } else { |
| srManager.interfaceService.getInterfaces().stream() |
| .filter(i -> i.vlanTagged().contains(vlanToProbe) || |
| i.vlanUntagged().equals(vlanToProbe) || |
| i.vlanNative().equals(vlanToProbe)) |
| .filter(i -> i.connectPoint().deviceId().equals(pairDeviceId)) |
| .filter(i -> !i.connectPoint().port().equals(pairRemotePort)) |
| .forEach(i -> { |
| log.debug("Probing host {} on pair device {}", host.id(), i.connectPoint()); |
| srManager.probingService.probeHost(host, i.connectPoint(), ProbeMode.DISCOVER); |
| }); |
| } |
| } |
| |
| /** |
| * Populates or revokes a bridging rule on given deviceId that matches given mac, |
| * given vlan and output to given port. |
| * |
| * @param deviceId device ID |
| * @param port port |
| * @param mac mac address |
| * @param vlanId VLAN ID |
| * @param revoke true to revoke the rule; false to populate |
| */ |
| private void processBridgingRule(DeviceId deviceId, PortNumber port, MacAddress mac, |
| VlanId vlanId, boolean revoke) { |
| log.info("{} bridging entry for host {}/{} at {}:{}", revoke ? "Revoking" : "Populating", |
| mac, vlanId, deviceId, port); |
| |
| if (!revoke) { |
| srManager.defaultRoutingHandler.populateBridging(deviceId, port, mac, vlanId); |
| } else { |
| srManager.defaultRoutingHandler.revokeBridging(deviceId, port, mac, vlanId); |
| } |
| } |
| |
| /** |
| * Populate or revoke a routing rule on given deviceId that matches given ip, |
| * set destination mac to given mac, set vlan to given vlan and output to given port. |
| * |
| * @param deviceId device ID |
| * @param port port |
| * @param mac mac address |
| * @param vlanId VLAN ID |
| * @param ip IP address |
| * @param revoke true to revoke the rule; false to populate |
| */ |
| private void processRoutingRule(DeviceId deviceId, PortNumber port, MacAddress mac, |
| VlanId vlanId, IpAddress ip, boolean revoke) { |
| ConnectPoint location = new ConnectPoint(deviceId, port); |
| if (!srManager.deviceConfiguration.inSameSubnet(location, ip)) { |
| log.info("{} is not included in the subnet config of {}/{}. Ignored.", ip, deviceId, port); |
| return; |
| } |
| |
| log.info("{} routing rule for {} at {}", revoke ? "Revoking" : "Populating", ip, location); |
| if (revoke) { |
| srManager.defaultRoutingHandler.revokeRoute(deviceId, ip.toIpPrefix(), mac, vlanId, port, true); |
| } else { |
| srManager.defaultRoutingHandler.populateRoute(deviceId, ip.toIpPrefix(), mac, vlanId, port, true); |
| } |
| } |
| |
| /** |
| * Populate or revoke a routing rule and egress rules on given deviceId that matches given IP, |
| * to set destination mac to given mac, set inner vlan and outer vlan to given vlans, |
| * set outer TPID, and output to given port. |
| * |
| * @param deviceId device ID |
| * @param port port |
| * @param mac mac address |
| * @param innerVlan inner VLAN ID |
| * @param outerVlan outer VLAN ID |
| * @param outerTpid outer TPID |
| * @param ip IP address |
| * @param revoke true to revoke the rule; false to populate |
| */ |
| private void processDoubleTaggedRoutingRule(DeviceId deviceId, PortNumber port, |
| MacAddress mac, VlanId innerVlan, |
| VlanId outerVlan, EthType outerTpid, |
| IpAddress ip, boolean revoke) { |
| if (!srManager.routeDoubleTaggedHosts) { |
| log.debug("Routing for double tagged host is disabled. Ignore {}/{}/{}", mac, outerVlan, innerVlan); |
| return; |
| } |
| |
| ConnectPoint location = new ConnectPoint(deviceId, port); |
| if (!srManager.deviceConfiguration.inSameSubnet(location, ip)) { |
| log.info("{} is not included in the subnet config of {}/{}. Ignored.", ip, deviceId, port); |
| return; |
| } |
| log.info("{} routing rule for double-tagged host {} at {}", |
| revoke ? "Revoking" : "Populating", ip, location); |
| if (revoke) { |
| srManager.defaultRoutingHandler.revokeDoubleTaggedRoute( |
| deviceId, ip.toIpPrefix(), mac, innerVlan, outerVlan, outerTpid, port); |
| } else { |
| srManager.defaultRoutingHandler.populateDoubleTaggedRoute( |
| deviceId, ip.toIpPrefix(), mac, innerVlan, outerVlan, outerTpid, port); |
| } |
| } |
| |
| void populateAllDoubleTaggedHost() { |
| log.info("Enabling routing for all double tagged hosts"); |
| Sets.newHashSet(srManager.hostService.getHosts()).stream().filter(this::isDoubleTaggedHost) |
| .forEach(h -> h.locations().forEach(l -> |
| h.ipAddresses().forEach(i -> |
| processDoubleTaggedRoutingRule(l.deviceId(), l.port(), h.mac(), h.innerVlan(), |
| h.vlan(), h.tpid(), i, false) |
| ) |
| ) |
| ); |
| } |
| |
| void revokeAllDoubleTaggedHost() { |
| log.info("Disabling routing for all double tagged hosts"); |
| Sets.newHashSet(srManager.hostService.getHosts()).stream().filter(this::isDoubleTaggedHost) |
| .forEach(h -> h.locations().forEach(l -> |
| h.ipAddresses().forEach(i -> |
| processDoubleTaggedRoutingRule(l.deviceId(), l.port(), h.mac(), h.innerVlan(), |
| h.vlan(), h.tpid(), i, true) |
| ) |
| ) |
| ); |
| } |
| |
| /** |
| * Returns VLAN ID to be used to program redirection flow on pair port. |
| * |
| * @param hostVlanId host VLAN ID |
| * @param location host location |
| * @return VLAN ID to be used; Or null if host VLAN does not match the interface config |
| */ |
| VlanId vlanForPairPort(VlanId hostVlanId, ConnectPoint location) { |
| VlanId internalVlan = srManager.getInternalVlanId(location); |
| Set<VlanId> taggedVlan = srManager.interfaceService.getTaggedVlanId(location); |
| |
| if (!hostVlanId.equals(VlanId.NONE) && taggedVlan.contains(hostVlanId)) { |
| return hostVlanId; |
| } else if (hostVlanId.equals(VlanId.NONE) && internalVlan != null) { |
| return internalVlan; |
| } else { |
| log.warn("VLAN mismatch. hostVlan={}, location={}, internalVlan={}, taggedVlan={}", |
| hostVlanId, location, internalVlan, taggedVlan); |
| return null; |
| } |
| } |
| |
| /** |
| * Update forwarding objective for unicast bridging and unicast routing. |
| * Also check the validity of updated interface configuration on VLAN. |
| * |
| * @param deviceId device ID that host attaches to |
| * @param portNum port number that host attaches to |
| * @param vlanId Vlan ID configured on the switch port |
| * @param popVlan true to pop Vlan tag at TrafficTreatment, false otherwise |
| * @param install true to populate the objective, false to revoke |
| */ |
| void processIntfVlanUpdatedEvent(DeviceId deviceId, PortNumber portNum, VlanId vlanId, |
| boolean popVlan, boolean install) { |
| ConnectPoint connectPoint = new ConnectPoint(deviceId, portNum); |
| Set<Host> hosts = hostService.getConnectedHosts(connectPoint); |
| |
| if (hosts == null || hosts.size() == 0) { |
| log.debug("processIntfVlanUpdatedEvent: No hosts connected to {}", connectPoint); |
| return; |
| } |
| |
| hosts.forEach(host -> { |
| MacAddress mac = host.mac(); |
| VlanId hostVlanId = host.vlan(); |
| |
| // Check whether the host vlan is valid for new interface configuration |
| if ((!popVlan && hostVlanId.equals(vlanId)) || |
| (popVlan && hostVlanId.equals(VlanId.NONE))) { |
| srManager.defaultRoutingHandler.updateBridging(deviceId, portNum, mac, vlanId, popVlan, install); |
| // Update Forwarding objective and corresponding simple Next objective |
| // for each host and IP address connected to given port |
| host.ipAddresses().forEach(ipAddress -> |
| srManager.defaultRoutingHandler.updateFwdObj(deviceId, portNum, ipAddress.toIpPrefix(), |
| mac, vlanId, popVlan, install) |
| ); |
| } |
| }); |
| } |
| |
| /** |
| * Populate or revoke routing rule for each host, according to the updated |
| * subnet configuration on the interface. |
| * @param cp connect point of the updated interface |
| * @param ipPrefixSet IP Prefixes added or removed |
| * @param install true if IP Prefixes added, false otherwise |
| */ |
| void processIntfIpUpdatedEvent(ConnectPoint cp, Set<IpPrefix> ipPrefixSet, boolean install) { |
| Set<Host> hosts = hostService.getConnectedHosts(cp); |
| |
| if (hosts == null || hosts.size() == 0) { |
| log.debug("processIntfIpUpdatedEvent: No hosts connected to {}", cp); |
| return; |
| } |
| |
| // Check whether the host IP address is in the interface's subnet |
| hosts.forEach(host -> |
| host.ipAddresses().forEach(hostIpAddress -> { |
| ipPrefixSet.forEach(ipPrefix -> { |
| if (install && ipPrefix.contains(hostIpAddress)) { |
| srManager.defaultRoutingHandler.populateRoute(cp.deviceId(), hostIpAddress.toIpPrefix(), |
| host.mac(), host.vlan(), cp.port(), true); |
| } else if (!install && ipPrefix.contains(hostIpAddress)) { |
| srManager.defaultRoutingHandler.revokeRoute(cp.deviceId(), hostIpAddress.toIpPrefix(), |
| host.mac(), host.vlan(), cp.port(), true); |
| } |
| }); |
| })); |
| } |
| |
| /** |
| * Returns the set of portnumbers on the given device that are part of the |
| * locations for dual-homed hosts. |
| * |
| * @param deviceId the given deviceId |
| * @return set of port numbers on given device that are dual-homed host |
| * locations. May be empty if no dual homed hosts are connected to |
| * the given device |
| */ |
| Set<PortNumber> getDualHomedHostPorts(DeviceId deviceId) { |
| Set<PortNumber> dualHomedLocations = new HashSet<>(); |
| srManager.hostService.getConnectedHosts(deviceId).stream() |
| .filter(host -> host.locations().size() == 2) |
| .forEach(host -> host.locations().stream() |
| .filter(loc -> loc.deviceId().equals(deviceId)) |
| .forEach(loc -> dualHomedLocations.add(loc.port()))); |
| return dualHomedLocations; |
| } |
| |
| /** |
| * Checks if the given host is double-tagged or not. |
| * |
| * @param host host to check |
| * @return true if it is double-tagged, false otherwise |
| */ |
| private boolean isDoubleTaggedHost(Host host) { |
| return !host.innerVlan().equals(VlanId.NONE); |
| } |
| |
| } |