Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 1 | package net.onrc.onos.ofcontroller.proxyarp; |
| 2 | |
| 3 | import java.io.IOException; |
| 4 | import java.net.InetAddress; |
| 5 | import java.net.UnknownHostException; |
| 6 | import java.util.ArrayList; |
| 7 | import java.util.Collection; |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 8 | import java.util.HashMap; |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 9 | import java.util.HashSet; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 10 | import java.util.Iterator; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 11 | import java.util.List; |
| 12 | import java.util.Map; |
| 13 | import java.util.Set; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 14 | import java.util.Timer; |
| 15 | import java.util.TimerTask; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 16 | |
| 17 | import net.floodlightcontroller.core.FloodlightContext; |
| 18 | import net.floodlightcontroller.core.IFloodlightProviderService; |
| 19 | import net.floodlightcontroller.core.IOFMessageListener; |
| 20 | import net.floodlightcontroller.core.IOFSwitch; |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 21 | import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| 22 | import net.floodlightcontroller.core.module.IFloodlightModule; |
| 23 | import net.floodlightcontroller.core.module.IFloodlightService; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 24 | import net.floodlightcontroller.packet.ARP; |
| 25 | import net.floodlightcontroller.packet.Ethernet; |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 26 | import net.floodlightcontroller.packet.IPv4; |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 27 | import net.floodlightcontroller.restserver.IRestApiService; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 28 | import net.floodlightcontroller.topology.ITopologyService; |
Jonathan Hart | 8ec133c | 2013-06-26 15:25:18 +1200 | [diff] [blame] | 29 | import net.floodlightcontroller.util.MACAddress; |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 30 | import net.onrc.onos.datagrid.IDatagridService; |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 31 | import net.onrc.onos.ofcontroller.bgproute.Interface; |
Jonathan Hart | d6ed62b | 2013-11-01 13:18:25 -0700 | [diff] [blame] | 32 | import net.onrc.onos.ofcontroller.core.IDeviceStorage; |
| 33 | import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IDeviceObject; |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 34 | import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IPortObject; |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 35 | import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.ISwitchObject; |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 36 | import net.onrc.onos.ofcontroller.core.INetMapTopologyService.ITopoSwitchService; |
Jonathan Hart | ebba1e1 | 2013-10-29 11:37:02 -0700 | [diff] [blame] | 37 | import net.onrc.onos.ofcontroller.core.config.IConfigInfoService; |
Jonathan Hart | d6ed62b | 2013-11-01 13:18:25 -0700 | [diff] [blame] | 38 | import net.onrc.onos.ofcontroller.core.internal.DeviceStorageImpl; |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 39 | import net.onrc.onos.ofcontroller.core.internal.TopoSwitchServiceImpl; |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 40 | import net.onrc.onos.ofcontroller.flowprogrammer.IFlowPusherService; |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 41 | import net.onrc.onos.ofcontroller.util.Dpid; |
| 42 | import net.onrc.onos.ofcontroller.util.Port; |
| 43 | import net.onrc.onos.ofcontroller.util.SwitchPort; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 44 | |
| 45 | import org.openflow.protocol.OFMessage; |
| 46 | import org.openflow.protocol.OFPacketIn; |
| 47 | import org.openflow.protocol.OFPacketOut; |
| 48 | import org.openflow.protocol.OFPort; |
| 49 | import org.openflow.protocol.OFType; |
| 50 | import org.openflow.protocol.action.OFAction; |
| 51 | import org.openflow.protocol.action.OFActionOutput; |
Jonathan Hart | 8ec133c | 2013-06-26 15:25:18 +1200 | [diff] [blame] | 52 | import org.openflow.util.HexString; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 53 | import org.slf4j.Logger; |
| 54 | import org.slf4j.LoggerFactory; |
| 55 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 56 | import com.google.common.collect.HashMultimap; |
| 57 | import com.google.common.collect.Multimaps; |
| 58 | import com.google.common.collect.SetMultimap; |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 59 | import com.google.common.net.InetAddresses; |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 60 | |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 61 | public class ProxyArpManager implements IProxyArpService, IOFMessageListener, |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 62 | IPacketOutEventHandler, IArpReplyEventHandler, |
| 63 | IFloodlightModule { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 64 | private final static Logger log = LoggerFactory.getLogger(ProxyArpManager.class); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 65 | |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 66 | private final long ARP_TIMER_PERIOD = 100; //ms |
| 67 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 68 | private static final int ARP_REQUEST_TIMEOUT = 2000; //ms |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 69 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 70 | private IFloodlightProviderService floodlightProvider; |
| 71 | private ITopologyService topology; |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 72 | private IDatagridService datagrid; |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 73 | private IConfigInfoService configService; |
| 74 | private IRestApiService restApi; |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 75 | private IFlowPusherService flowPusher; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 76 | |
Jonathan Hart | d6ed62b | 2013-11-01 13:18:25 -0700 | [diff] [blame] | 77 | private IDeviceStorage deviceStorage; |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 78 | private volatile ITopoSwitchService topoSwitchService; |
Jonathan Hart | d6ed62b | 2013-11-01 13:18:25 -0700 | [diff] [blame] | 79 | |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 80 | private short vlan; |
| 81 | private static final short NO_VLAN = 0; |
| 82 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 83 | //private ArpCache arpCache; |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 84 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 85 | private SetMultimap<InetAddress, ArpRequest> arpRequests; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 86 | |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 87 | private static class ArpRequest { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 88 | private final IArpRequester requester; |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 89 | private final boolean retry; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 90 | private long requestTime; |
| 91 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 92 | public ArpRequest(IArpRequester requester, boolean retry){ |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 93 | this.requester = requester; |
| 94 | this.retry = retry; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 95 | this.requestTime = System.currentTimeMillis(); |
| 96 | } |
| 97 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 98 | public ArpRequest(ArpRequest old) { |
| 99 | this.requester = old.requester; |
| 100 | this.retry = old.retry; |
| 101 | this.requestTime = System.currentTimeMillis(); |
| 102 | } |
| 103 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 104 | public boolean isExpired() { |
Jonathan Hart | da4d0e1 | 2013-09-30 21:00:20 +1300 | [diff] [blame] | 105 | return (System.currentTimeMillis() - requestTime) > ARP_REQUEST_TIMEOUT; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 106 | } |
| 107 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 108 | public boolean shouldRetry() { |
| 109 | return retry; |
| 110 | } |
| 111 | |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 112 | public void dispatchReply(InetAddress ipAddress, MACAddress replyMacAddress) { |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 113 | requester.arpResponse(ipAddress, replyMacAddress); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 114 | } |
| 115 | } |
| 116 | |
Jonathan Hart | da4d0e1 | 2013-09-30 21:00:20 +1300 | [diff] [blame] | 117 | private class HostArpRequester implements IArpRequester { |
| 118 | private final ARP arpRequest; |
| 119 | private final long dpid; |
| 120 | private final short port; |
| 121 | |
| 122 | public HostArpRequester(ARP arpRequest, long dpid, short port) { |
| 123 | this.arpRequest = arpRequest; |
| 124 | this.dpid = dpid; |
| 125 | this.port = port; |
| 126 | } |
| 127 | |
| 128 | @Override |
| 129 | public void arpResponse(InetAddress ipAddress, MACAddress macAddress) { |
| 130 | ProxyArpManager.this.sendArpReply(arpRequest, dpid, port, macAddress); |
| 131 | } |
| 132 | } |
| 133 | |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 134 | @Override |
| 135 | public Collection<Class<? extends IFloodlightService>> getModuleServices() { |
| 136 | Collection<Class<? extends IFloodlightService>> l |
| 137 | = new ArrayList<Class<? extends IFloodlightService>>(); |
| 138 | l.add(IProxyArpService.class); |
| 139 | return l; |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 140 | } |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 141 | |
| 142 | @Override |
| 143 | public Map<Class<? extends IFloodlightService>, IFloodlightService> getServiceImpls() { |
| 144 | Map<Class<? extends IFloodlightService>, IFloodlightService> m |
| 145 | = new HashMap<Class<? extends IFloodlightService>, IFloodlightService>(); |
| 146 | m.put(IProxyArpService.class, this); |
| 147 | return m; |
| 148 | } |
| 149 | |
| 150 | @Override |
| 151 | public Collection<Class<? extends IFloodlightService>> getModuleDependencies() { |
| 152 | Collection<Class<? extends IFloodlightService>> dependencies |
| 153 | = new ArrayList<Class<? extends IFloodlightService>>(); |
| 154 | dependencies.add(IFloodlightProviderService.class); |
| 155 | dependencies.add(ITopologyService.class); |
| 156 | dependencies.add(IRestApiService.class); |
| 157 | dependencies.add(IDatagridService.class); |
| 158 | dependencies.add(IConfigInfoService.class); |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 159 | dependencies.add(IFlowPusherService.class); |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 160 | return dependencies; |
| 161 | } |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 162 | |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 163 | @Override |
| 164 | public void init(FloodlightModuleContext context){ |
| 165 | this.floodlightProvider = |
| 166 | context.getServiceImpl(IFloodlightProviderService.class); |
| 167 | this.topology = context.getServiceImpl(ITopologyService.class); |
| 168 | this.datagrid = context.getServiceImpl(IDatagridService.class); |
| 169 | this.configService = context.getServiceImpl(IConfigInfoService.class); |
| 170 | this.restApi = context.getServiceImpl(IRestApiService.class); |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 171 | this.flowPusher = context.getServiceImpl(IFlowPusherService.class); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 172 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 173 | //arpCache = new ArpCache(); |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 174 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 175 | arpRequests = Multimaps.synchronizedSetMultimap( |
| 176 | HashMultimap.<InetAddress, ArpRequest>create()); |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 177 | |
| 178 | topoSwitchService = new TopoSwitchServiceImpl(); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 179 | } |
| 180 | |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 181 | @Override |
| 182 | public void startUp(FloodlightModuleContext context) { |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 183 | this.vlan = configService.getVlan(); |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 184 | log.info("vlan set to {}", this.vlan); |
| 185 | |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 186 | restApi.addRestletRoutable(new ArpWebRoutable()); |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 187 | floodlightProvider.addOFMessageListener(OFType.PACKET_IN, this); |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 188 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 189 | datagrid.registerPacketOutEventHandler(this); |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 190 | |
Jonathan Hart | d6ed62b | 2013-11-01 13:18:25 -0700 | [diff] [blame] | 191 | deviceStorage = new DeviceStorageImpl(); |
| 192 | deviceStorage.init(""); |
| 193 | |
Jonathan Hart | 4aa2b4e | 2013-09-24 14:50:23 +1200 | [diff] [blame] | 194 | Timer arpTimer = new Timer("arp-processing"); |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 195 | arpTimer.scheduleAtFixedRate(new TimerTask() { |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 196 | @Override |
| 197 | public void run() { |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 198 | doPeriodicArpProcessing(); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 199 | } |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 200 | }, 0, ARP_TIMER_PERIOD); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 201 | } |
| 202 | |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 203 | /* |
| 204 | * Function that runs periodically to manage the asynchronous request mechanism. |
| 205 | * It basically cleans up old ARP requests if we don't get a response for them. |
| 206 | * The caller can designate that a request should be retried indefinitely, and |
| 207 | * this task will handle that as well. |
| 208 | */ |
| 209 | private void doPeriodicArpProcessing() { |
| 210 | SetMultimap<InetAddress, ArpRequest> retryList |
| 211 | = HashMultimap.<InetAddress, ArpRequest>create(); |
| 212 | |
| 213 | //Have to synchronize externally on the Multimap while using an iterator, |
| 214 | //even though it's a synchronizedMultimap |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 215 | synchronized (arpRequests) { |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 216 | Iterator<Map.Entry<InetAddress, ArpRequest>> it |
| 217 | = arpRequests.entries().iterator(); |
| 218 | |
| 219 | while (it.hasNext()) { |
| 220 | Map.Entry<InetAddress, ArpRequest> entry |
| 221 | = it.next(); |
| 222 | ArpRequest request = entry.getValue(); |
| 223 | if (request.isExpired()) { |
| 224 | log.debug("Cleaning expired ARP request for {}", |
| 225 | entry.getKey().getHostAddress()); |
| 226 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 227 | // If the ARP request is expired and then delete the device |
| 228 | // TODO check whether this is OK from this thread |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 229 | IDeviceObject targetDevice = |
| 230 | deviceStorage.getDeviceByIP(InetAddresses.coerceToInteger(entry.getKey())); |
| 231 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 232 | if (targetDevice != null) { |
| 233 | deviceStorage.removeDevice(targetDevice); |
Yuta HIGUCHI | 5302ddf | 2014-01-06 12:53:35 -0800 | [diff] [blame] | 234 | if (log.isDebugEnabled()) { |
| 235 | log.debug("RemoveDevice: {} due to no have not recieve the ARP reply", targetDevice); |
| 236 | } |
Jonathan Hart | d857ad6 | 2013-12-14 18:08:17 -0800 | [diff] [blame] | 237 | } |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 238 | |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 239 | it.remove(); |
| 240 | |
| 241 | if (request.shouldRetry()) { |
| 242 | retryList.put(entry.getKey(), request); |
| 243 | } |
| 244 | } |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 245 | } |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 246 | } |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 247 | |
| 248 | for (Map.Entry<InetAddress, Collection<ArpRequest>> entry |
| 249 | : retryList.asMap().entrySet()) { |
| 250 | |
| 251 | InetAddress address = entry.getKey(); |
| 252 | |
| 253 | log.debug("Resending ARP request for {}", address.getHostAddress()); |
| 254 | |
| 255 | sendArpRequestForAddress(address); |
| 256 | |
| 257 | for (ArpRequest request : entry.getValue()) { |
| 258 | arpRequests.put(address, new ArpRequest(request)); |
| 259 | } |
| 260 | } |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 261 | } |
| 262 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 263 | @Override |
| 264 | public String getName() { |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 265 | return "proxyarpmanager"; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | @Override |
| 269 | public boolean isCallbackOrderingPrereq(OFType type, String name) { |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 270 | if (type == OFType.PACKET_IN) { |
Jonathan Hart | d857ad6 | 2013-12-14 18:08:17 -0800 | [diff] [blame] | 271 | return "devicemanager".equals(name) || "onosdevicemanager".equals(name); |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 272 | } |
| 273 | else { |
| 274 | return false; |
| 275 | } |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 276 | } |
| 277 | |
| 278 | @Override |
| 279 | public boolean isCallbackOrderingPostreq(OFType type, String name) { |
Jonathan Hart | d857ad6 | 2013-12-14 18:08:17 -0800 | [diff] [blame] | 280 | return type == OFType.PACKET_IN && "onosforwarding".equals(name); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | @Override |
| 284 | public Command receive( |
| 285 | IOFSwitch sw, OFMessage msg, FloodlightContext cntx) { |
| 286 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 287 | OFPacketIn pi = (OFPacketIn) msg; |
| 288 | |
| 289 | Ethernet eth = IFloodlightProviderService.bcStore.get(cntx, |
| 290 | IFloodlightProviderService.CONTEXT_PI_PAYLOAD); |
| 291 | |
| 292 | if (eth.getEtherType() == Ethernet.TYPE_ARP){ |
Jonathan Hart | 5ea7cc0 | 2013-11-12 11:56:23 -0800 | [diff] [blame] | 293 | ARP arp = (ARP) eth.getPayload(); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 294 | if (arp.getOpCode() == ARP.OP_REQUEST) { |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 295 | handleArpRequest(sw, pi, arp, eth); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 296 | } |
| 297 | else if (arp.getOpCode() == ARP.OP_REPLY) { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 298 | handleArpReply(sw, pi, arp); |
Jonathan Hart | c632562 | 2014-01-14 16:37:50 -0800 | [diff] [blame] | 299 | sendArpReplyNotification(eth, pi); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 300 | } |
Jonathan Hart | 1767299 | 2013-12-12 16:15:16 -0800 | [diff] [blame] | 301 | |
| 302 | // Stop ARP packets here |
| 303 | return Command.STOP; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 304 | } |
| 305 | |
Jonathan Hart | 1767299 | 2013-12-12 16:15:16 -0800 | [diff] [blame] | 306 | // Propagate everything else |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 307 | return Command.CONTINUE; |
| 308 | } |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 309 | |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 310 | private void handleArpRequest(IOFSwitch sw, OFPacketIn pi, ARP arp, Ethernet eth) { |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 311 | if (log.isTraceEnabled()) { |
| 312 | log.trace("ARP request received for {}", |
| 313 | inetAddressToString(arp.getTargetProtocolAddress())); |
| 314 | } |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 315 | |
| 316 | InetAddress target; |
| 317 | try { |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 318 | target = InetAddress.getByAddress(arp.getTargetProtocolAddress()); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 319 | } catch (UnknownHostException e) { |
| 320 | log.debug("Invalid address in ARP request", e); |
| 321 | return; |
| 322 | } |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 323 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 324 | if (configService.fromExternalNetwork(sw.getId(), pi.getInPort())) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 325 | //If the request came from outside our network, we only care if |
| 326 | //it was a request for one of our interfaces. |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 327 | if (configService.isInterfaceAddress(target)) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 328 | log.trace("ARP request for our interface. Sending reply {} => {}", |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 329 | target.getHostAddress(), configService.getRouterMacAddress()); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 330 | |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 331 | sendArpReply(arp, sw.getId(), pi.getInPort(), |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 332 | configService.getRouterMacAddress()); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 333 | } |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 334 | |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 335 | return; |
| 336 | } |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 337 | |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 338 | //MACAddress macAddress = arpCache.lookup(target); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 339 | |
| 340 | arpRequests.put(target, new ArpRequest( |
| 341 | new HostArpRequester(arp, sw.getId(), pi.getInPort()), false)); |
| 342 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 343 | IDeviceObject targetDevice = |
| 344 | deviceStorage.getDeviceByIP(InetAddresses.coerceToInteger(target)); |
| 345 | |
| 346 | if (targetDevice == null) { |
| 347 | if (log.isTraceEnabled()) { |
| 348 | log.trace("No device info found for {} - broadcasting", |
| 349 | target.getHostAddress()); |
| 350 | } |
| 351 | |
| 352 | // We don't know the device so broadcast the request out |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 353 | datagrid.sendPacketOutNotification( |
| 354 | new BroadcastPacketOutNotification(eth.serialize(), |
| 355 | sw.getId(), pi.getInPort())); |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 356 | } |
| 357 | else { |
| 358 | // Even if the device exists in our database, we do not reply to |
| 359 | // the request directly, but check whether the device is still valid |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 360 | MACAddress macAddress = MACAddress.valueOf(targetDevice.getMACAddress()); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 361 | |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 362 | if (log.isTraceEnabled()) { |
Yuta HIGUCHI | 5302ddf | 2014-01-06 12:53:35 -0800 | [diff] [blame] | 363 | log.trace("The target Device Record in DB is: {} => {} from ARP request host at {}/{}", |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 364 | new Object [] { |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 365 | inetAddressToString(arp.getTargetProtocolAddress()), |
Yuta HIGUCHI | 5302ddf | 2014-01-06 12:53:35 -0800 | [diff] [blame] | 366 | macAddress, |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 367 | HexString.toHexString(sw.getId()), pi.getInPort()}); |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 368 | } |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 369 | |
| 370 | // sendArpReply(arp, sw.getId(), pi.getInPort(), macAddress); |
| 371 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 372 | Iterable<IPortObject> outPorts = targetDevice.getAttachedPorts(); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 373 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 374 | if (!outPorts.iterator().hasNext()){ |
| 375 | if (log.isTraceEnabled()) { |
| 376 | log.trace("Device {} exists but is not connected to any ports" + |
| 377 | " - broadcasting", macAddress); |
| 378 | } |
| 379 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 380 | datagrid.sendPacketOutNotification( |
| 381 | new BroadcastPacketOutNotification(eth.serialize(), |
| 382 | sw.getId(), pi.getInPort())); |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 383 | } |
| 384 | else { |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 385 | for (IPortObject portObject : outPorts) { |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 386 | //long outSwitch = 0; |
| 387 | //short outPort = 0; |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 388 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 389 | /* |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 390 | if (!portObject.getLinkedPorts().iterator().hasNext()) { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 391 | outPort = portObject.getNumber(); |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 392 | }*/ |
| 393 | if (portObject.getLinkedPorts().iterator().hasNext()) { |
| 394 | continue; |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 395 | } |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 396 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 397 | short outPort = portObject.getNumber(); |
pingping-lin | 568c601 | 2013-12-14 05:57:11 +0800 | [diff] [blame] | 398 | ISwitchObject outSwitchObject = portObject.getSwitch(); |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 399 | long outSwitch = HexString.toLong(outSwitchObject.getDPID()); |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 400 | |
| 401 | if (log.isTraceEnabled()) { |
| 402 | log.trace("Probing device {} on port {}/{}", |
| 403 | new Object[] {macAddress, |
| 404 | HexString.toHexString(outSwitch), outPort}); |
| 405 | } |
pingping-lin | 568c601 | 2013-12-14 05:57:11 +0800 | [diff] [blame] | 406 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 407 | datagrid.sendPacketOutNotification( |
| 408 | new SinglePacketOutNotification(eth.serialize(), |
| 409 | outSwitch, outPort)); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 410 | } |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 411 | } |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 412 | } |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 413 | } |
| 414 | |
Jonathan Hart | 1912afc | 2013-10-11 12:02:44 +1300 | [diff] [blame] | 415 | private void handleArpReply(IOFSwitch sw, OFPacketIn pi, ARP arp){ |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 416 | if (log.isTraceEnabled()) { |
| 417 | log.trace("ARP reply recieved: {} => {}, on {}/{}", new Object[] { |
| 418 | inetAddressToString(arp.getSenderProtocolAddress()), |
| 419 | HexString.toHexString(arp.getSenderHardwareAddress()), |
| 420 | HexString.toHexString(sw.getId()), pi.getInPort()}); |
| 421 | } |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 422 | |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 423 | InetAddress senderIpAddress; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 424 | try { |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 425 | senderIpAddress = InetAddress.getByAddress(arp.getSenderProtocolAddress()); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 426 | } catch (UnknownHostException e) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 427 | log.debug("Invalid address in ARP reply", e); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 428 | return; |
| 429 | } |
| 430 | |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 431 | MACAddress senderMacAddress = MACAddress.valueOf(arp.getSenderHardwareAddress()); |
| 432 | |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 433 | //arpCache.update(senderIpAddress, senderMacAddress); |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 434 | |
| 435 | //See if anyone's waiting for this ARP reply |
| 436 | Set<ArpRequest> requests = arpRequests.get(senderIpAddress); |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 437 | |
| 438 | //Synchronize on the Multimap while using an iterator for one of the sets |
Jonathan Hart | e751e1c | 2013-08-23 00:48:47 +1200 | [diff] [blame] | 439 | List<ArpRequest> requestsToSend = new ArrayList<ArpRequest>(requests.size()); |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 440 | synchronized (arpRequests) { |
| 441 | Iterator<ArpRequest> it = requests.iterator(); |
| 442 | while (it.hasNext()) { |
| 443 | ArpRequest request = it.next(); |
| 444 | it.remove(); |
Jonathan Hart | e751e1c | 2013-08-23 00:48:47 +1200 | [diff] [blame] | 445 | requestsToSend.add(request); |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 446 | } |
| 447 | } |
Jonathan Hart | e751e1c | 2013-08-23 00:48:47 +1200 | [diff] [blame] | 448 | |
| 449 | //Don't hold an ARP lock while dispatching requests |
| 450 | for (ArpRequest request : requestsToSend) { |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 451 | request.dispatchReply(senderIpAddress, senderMacAddress); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 452 | } |
| 453 | } |
| 454 | |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 455 | private void sendArpRequestForAddress(InetAddress ipAddress) { |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 456 | //TODO what should the sender IP address and MAC address be if no |
| 457 | //IP addresses are configured? Will there ever be a need to send |
| 458 | //ARP requests from the controller in that case? |
| 459 | //All-zero MAC address doesn't seem to work - hosts don't respond to it |
| 460 | |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 461 | byte[] zeroIpv4 = {0x0, 0x0, 0x0, 0x0}; |
| 462 | byte[] zeroMac = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0}; |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 463 | byte[] genericNonZeroMac = {0x0, 0x0, 0x0, 0x0, 0x0, 0x01}; |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 464 | byte[] broadcastMac = {(byte)0xff, (byte)0xff, (byte)0xff, |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 465 | (byte)0xff, (byte)0xff, (byte)0xff}; |
| 466 | |
| 467 | ARP arpRequest = new ARP(); |
| 468 | |
| 469 | arpRequest.setHardwareType(ARP.HW_TYPE_ETHERNET) |
| 470 | .setProtocolType(ARP.PROTO_TYPE_IP) |
| 471 | .setHardwareAddressLength((byte)Ethernet.DATALAYER_ADDRESS_LENGTH) |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 472 | .setProtocolAddressLength((byte)IPv4.ADDRESS_LENGTH) |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 473 | .setOpCode(ARP.OP_REQUEST) |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 474 | .setTargetHardwareAddress(zeroMac) |
| 475 | .setTargetProtocolAddress(ipAddress.getAddress()); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 476 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 477 | MACAddress routerMacAddress = configService.getRouterMacAddress(); |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 478 | //TODO hack for now as it's unclear what the MAC address should be |
| 479 | byte[] senderMacAddress = genericNonZeroMac; |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 480 | if (routerMacAddress != null) { |
| 481 | senderMacAddress = routerMacAddress.toBytes(); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 482 | } |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 483 | arpRequest.setSenderHardwareAddress(senderMacAddress); |
| 484 | |
| 485 | byte[] senderIPAddress = zeroIpv4; |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 486 | Interface intf = configService.getOutgoingInterface(ipAddress); |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 487 | if (intf != null) { |
| 488 | senderIPAddress = intf.getIpAddress().getAddress(); |
| 489 | } |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 490 | |
| 491 | arpRequest.setSenderProtocolAddress(senderIPAddress); |
| 492 | |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 493 | Ethernet eth = new Ethernet(); |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 494 | eth.setSourceMACAddress(senderMacAddress) |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 495 | .setDestinationMACAddress(broadcastMac) |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 496 | .setEtherType(Ethernet.TYPE_ARP) |
| 497 | .setPayload(arpRequest); |
| 498 | |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 499 | if (vlan != NO_VLAN) { |
| 500 | eth.setVlanID(vlan) |
| 501 | .setPriorityCode((byte)0); |
| 502 | } |
| 503 | |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 504 | sendArpRequestToSwitches(ipAddress, eth.serialize()); |
| 505 | } |
| 506 | |
| 507 | private void sendArpRequestToSwitches(InetAddress dstAddress, byte[] arpRequest) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 508 | sendArpRequestToSwitches(dstAddress, arpRequest, |
| 509 | 0, OFPort.OFPP_NONE.getValue()); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 510 | } |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 511 | |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 512 | private void sendArpRequestToSwitches(InetAddress dstAddress, byte[] arpRequest, |
| 513 | long inSwitch, short inPort) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 514 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 515 | if (configService.hasLayer3Configuration()) { |
| 516 | Interface intf = configService.getOutgoingInterface(dstAddress); |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 517 | if (intf != null) { |
| 518 | sendArpRequestOutPort(arpRequest, intf.getDpid(), intf.getPort()); |
| 519 | } |
| 520 | else { |
| 521 | //TODO here it should be broadcast out all non-interface edge ports. |
| 522 | //I think we can assume that if it's not a request for an external |
| 523 | //network, it's an ARP for a host in our own network. So we want to |
| 524 | //send it out all edge ports that don't have an interface configured |
| 525 | //to ensure it reaches all hosts in our network. |
| 526 | log.debug("No interface found to send ARP request for {}", |
| 527 | dstAddress.getHostAddress()); |
| 528 | } |
| 529 | } |
| 530 | else { |
| 531 | broadcastArpRequestOutEdge(arpRequest, inSwitch, inPort); |
| 532 | } |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 533 | } |
| 534 | |
Jonathan Hart | c632562 | 2014-01-14 16:37:50 -0800 | [diff] [blame] | 535 | private void sendArpReplyNotification(Ethernet eth, OFPacketIn pi) { |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 536 | ARP arp = (ARP) eth.getPayload(); |
| 537 | |
| 538 | if (log.isTraceEnabled()) { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 539 | log.trace("Sending ARP reply for {} to other ONOS instances", |
| 540 | inetAddressToString(arp.getSenderProtocolAddress())); |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 541 | } |
| 542 | |
| 543 | InetAddress targetAddress; |
| 544 | MACAddress mac = new MACAddress(arp.getSenderHardwareAddress()); |
| 545 | |
| 546 | try { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 547 | targetAddress = InetAddress.getByAddress(arp.getSenderProtocolAddress()); |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 548 | } catch (UnknownHostException e) { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 549 | log.error("Unknown host", e); |
| 550 | return; |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 551 | } |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 552 | |
| 553 | datagrid.sendArpReplyNotification(new ArpReplyNotification(targetAddress, mac)); |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 554 | } |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 555 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 556 | // This remains from the older single-instance ARP code. It used Floodlight |
| 557 | // APIs to find the edge of the network, but only worked on a single instance. |
| 558 | // We now do this using ONOS network graph APIs. |
| 559 | @Deprecated |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 560 | private void broadcastArpRequestOutEdge(byte[] arpRequest, long inSwitch, short inPort) { |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 561 | for (IOFSwitch sw : floodlightProvider.getSwitches().values()){ |
| 562 | Collection<Short> enabledPorts = sw.getEnabledPortNumbers(); |
| 563 | Set<Short> linkPorts = topology.getPortsWithLinks(sw.getId()); |
| 564 | |
Jonathan Hart | 8ec133c | 2013-06-26 15:25:18 +1200 | [diff] [blame] | 565 | if (linkPorts == null){ |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 566 | //I think this means the switch doesn't have any links. |
| 567 | //continue; |
| 568 | linkPorts = new HashSet<Short>(); |
Jonathan Hart | 8ec133c | 2013-06-26 15:25:18 +1200 | [diff] [blame] | 569 | } |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 570 | |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 571 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 572 | OFPacketOut po = new OFPacketOut(); |
| 573 | po.setInPort(OFPort.OFPP_NONE) |
| 574 | .setBufferId(-1) |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 575 | .setPacketData(arpRequest); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 576 | |
| 577 | List<OFAction> actions = new ArrayList<OFAction>(); |
| 578 | |
| 579 | for (short portNum : enabledPorts){ |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 580 | if (linkPorts.contains(portNum) || |
| 581 | (sw.getId() == inSwitch && portNum == inPort)){ |
| 582 | //If this port isn't an edge port or is the ingress port |
| 583 | //for the ARP, don't broadcast out it |
| 584 | continue; |
| 585 | } |
| 586 | |
| 587 | actions.add(new OFActionOutput(portNum)); |
| 588 | } |
| 589 | |
| 590 | po.setActions(actions); |
| 591 | short actionsLength = (short) (actions.size() * OFActionOutput.MINIMUM_LENGTH); |
| 592 | po.setActionsLength(actionsLength); |
| 593 | po.setLengthU(OFPacketOut.MINIMUM_LENGTH + actionsLength |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 594 | + arpRequest.length); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 595 | |
| 596 | List<OFMessage> msgList = new ArrayList<OFMessage>(); |
| 597 | msgList.add(po); |
| 598 | |
| 599 | try { |
| 600 | sw.write(msgList, null); |
| 601 | sw.flush(); |
| 602 | } catch (IOException e) { |
| 603 | log.error("Failure writing packet out to switch", e); |
| 604 | } |
| 605 | } |
| 606 | } |
| 607 | |
Jonathan Hart | f9bd98d | 2013-12-13 11:40:55 -0800 | [diff] [blame] | 608 | private void broadcastArpRequestOutMyEdge(byte[] arpRequest, |
| 609 | long inSwitch, short inPort) { |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 610 | List<SwitchPort> switchPorts = new ArrayList<SwitchPort>(); |
| 611 | |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 612 | for (IOFSwitch sw : floodlightProvider.getSwitches().values()) { |
| 613 | |
| 614 | OFPacketOut po = new OFPacketOut(); |
| 615 | po.setInPort(OFPort.OFPP_NONE) |
| 616 | .setBufferId(-1) |
| 617 | .setPacketData(arpRequest); |
| 618 | |
| 619 | List<OFAction> actions = new ArrayList<OFAction>(); |
| 620 | |
| 621 | Iterable<IPortObject> ports |
| 622 | = topoSwitchService.getPortsOnSwitch(sw.getStringId()); |
| 623 | if (ports == null) { |
| 624 | continue; |
| 625 | } |
| 626 | |
| 627 | for (IPortObject portObject : ports) { |
| 628 | if (!portObject.getLinkedPorts().iterator().hasNext()) { |
Jonathan Hart | f9bd98d | 2013-12-13 11:40:55 -0800 | [diff] [blame] | 629 | short portNumber = portObject.getNumber(); |
| 630 | |
| 631 | if (sw.getId() == inSwitch && portNumber == inPort) { |
| 632 | // This is the port that the ARP message came in, |
| 633 | // so don't broadcast out this port |
| 634 | continue; |
| 635 | } |
| 636 | |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 637 | switchPorts.add(new SwitchPort(new Dpid(sw.getId()), |
Jonathan Hart | f9bd98d | 2013-12-13 11:40:55 -0800 | [diff] [blame] | 638 | new Port(portNumber))); |
| 639 | actions.add(new OFActionOutput(portNumber)); |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 640 | } |
| 641 | } |
| 642 | |
| 643 | po.setActions(actions); |
| 644 | short actionsLength = (short) |
| 645 | (actions.size() * OFActionOutput.MINIMUM_LENGTH); |
| 646 | po.setActionsLength(actionsLength); |
| 647 | po.setLengthU(OFPacketOut.MINIMUM_LENGTH + actionsLength |
| 648 | + arpRequest.length); |
| 649 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 650 | flowPusher.add(sw, po); |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 651 | } |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 652 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 653 | if (log.isTraceEnabled()) { |
| 654 | log.trace("Broadcast ARP request to: {}", switchPorts); |
| 655 | } |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 656 | } |
| 657 | |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 658 | private void sendArpRequestOutPort(byte[] arpRequest, long dpid, short port) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 659 | if (log.isTraceEnabled()) { |
| 660 | log.trace("Sending ARP request out {}/{}", |
| 661 | HexString.toHexString(dpid), port); |
| 662 | } |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 663 | |
| 664 | OFPacketOut po = new OFPacketOut(); |
| 665 | po.setInPort(OFPort.OFPP_NONE) |
| 666 | .setBufferId(-1) |
| 667 | .setPacketData(arpRequest); |
| 668 | |
| 669 | List<OFAction> actions = new ArrayList<OFAction>(); |
| 670 | actions.add(new OFActionOutput(port)); |
| 671 | po.setActions(actions); |
| 672 | short actionsLength = (short) (actions.size() * OFActionOutput.MINIMUM_LENGTH); |
| 673 | po.setActionsLength(actionsLength); |
| 674 | po.setLengthU(OFPacketOut.MINIMUM_LENGTH + actionsLength |
| 675 | + arpRequest.length); |
| 676 | |
| 677 | IOFSwitch sw = floodlightProvider.getSwitches().get(dpid); |
| 678 | |
| 679 | if (sw == null) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 680 | log.warn("Switch not found when sending ARP request"); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 681 | return; |
| 682 | } |
| 683 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 684 | flowPusher.add(sw, po); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 685 | } |
| 686 | |
Jonathan Hart | da4d0e1 | 2013-09-30 21:00:20 +1300 | [diff] [blame] | 687 | private void sendArpReply(ARP arpRequest, long dpid, short port, MACAddress targetMac) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 688 | if (log.isTraceEnabled()) { |
| 689 | log.trace("Sending reply {} => {} to {}", new Object[] { |
| 690 | inetAddressToString(arpRequest.getTargetProtocolAddress()), |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 691 | targetMac, |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 692 | inetAddressToString(arpRequest.getSenderProtocolAddress())}); |
| 693 | } |
Jonathan Hart | 1633a40 | 2013-08-24 11:38:56 +1200 | [diff] [blame] | 694 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 695 | ARP arpReply = new ARP(); |
| 696 | arpReply.setHardwareType(ARP.HW_TYPE_ETHERNET) |
| 697 | .setProtocolType(ARP.PROTO_TYPE_IP) |
| 698 | .setHardwareAddressLength((byte)Ethernet.DATALAYER_ADDRESS_LENGTH) |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 699 | .setProtocolAddressLength((byte)IPv4.ADDRESS_LENGTH) |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 700 | .setOpCode(ARP.OP_REPLY) |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 701 | .setSenderHardwareAddress(targetMac.toBytes()) |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 702 | .setSenderProtocolAddress(arpRequest.getTargetProtocolAddress()) |
| 703 | .setTargetHardwareAddress(arpRequest.getSenderHardwareAddress()) |
| 704 | .setTargetProtocolAddress(arpRequest.getSenderProtocolAddress()); |
| 705 | |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 706 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 707 | Ethernet eth = new Ethernet(); |
| 708 | eth.setDestinationMACAddress(arpRequest.getSenderHardwareAddress()) |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 709 | .setSourceMACAddress(targetMac.toBytes()) |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 710 | .setEtherType(Ethernet.TYPE_ARP) |
| 711 | .setPayload(arpReply); |
| 712 | |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 713 | if (vlan != NO_VLAN) { |
| 714 | eth.setVlanID(vlan) |
| 715 | .setPriorityCode((byte)0); |
| 716 | } |
| 717 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 718 | List<OFAction> actions = new ArrayList<OFAction>(); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 719 | actions.add(new OFActionOutput(port)); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 720 | |
| 721 | OFPacketOut po = new OFPacketOut(); |
| 722 | po.setInPort(OFPort.OFPP_NONE) |
| 723 | .setBufferId(-1) |
Jonathan Hart | 8ec133c | 2013-06-26 15:25:18 +1200 | [diff] [blame] | 724 | .setPacketData(eth.serialize()) |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 725 | .setActions(actions) |
| 726 | .setActionsLength((short)OFActionOutput.MINIMUM_LENGTH) |
| 727 | .setLengthU(OFPacketOut.MINIMUM_LENGTH + OFActionOutput.MINIMUM_LENGTH |
| 728 | + po.getPacketData().length); |
| 729 | |
| 730 | List<OFMessage> msgList = new ArrayList<OFMessage>(); |
| 731 | msgList.add(po); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 732 | |
| 733 | IOFSwitch sw = floodlightProvider.getSwitches().get(dpid); |
| 734 | |
| 735 | if (sw == null) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 736 | log.warn("Switch {} not found when sending ARP reply", |
Jonathan Hart | 1633a40 | 2013-08-24 11:38:56 +1200 | [diff] [blame] | 737 | HexString.toHexString(dpid)); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 738 | return; |
| 739 | } |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 740 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 741 | flowPusher.add(sw, po); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 742 | } |
Jonathan Hart | da4d0e1 | 2013-09-30 21:00:20 +1300 | [diff] [blame] | 743 | |
| 744 | private String inetAddressToString(byte[] bytes) { |
| 745 | try { |
| 746 | return InetAddress.getByAddress(bytes).getHostAddress(); |
| 747 | } catch (UnknownHostException e) { |
| 748 | log.debug("Invalid IP address", e); |
| 749 | return ""; |
| 750 | } |
| 751 | } |
| 752 | |
| 753 | /* |
| 754 | * IProxyArpService methods |
| 755 | */ |
Jonathan Hart | c824ad0 | 2013-07-03 15:58:45 +1200 | [diff] [blame] | 756 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 757 | @Override |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 758 | public MACAddress getMacAddress(InetAddress ipAddress) { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 759 | //return arpCache.lookup(ipAddress); |
| 760 | return null; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 761 | } |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 762 | |
| 763 | @Override |
| 764 | public void sendArpRequest(InetAddress ipAddress, IArpRequester requester, |
| 765 | boolean retry) { |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 766 | arpRequests.put(ipAddress, new ArpRequest(requester, retry)); |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 767 | |
Jonathan Hart | 6e61821 | 2013-08-21 22:28:43 +1200 | [diff] [blame] | 768 | //Sanity check to make sure we don't send a request for our own address |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 769 | if (!configService.isInterfaceAddress(ipAddress)) { |
Jonathan Hart | 6e61821 | 2013-08-21 22:28:43 +1200 | [diff] [blame] | 770 | sendArpRequestForAddress(ipAddress); |
| 771 | } |
| 772 | } |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 773 | |
| 774 | @Override |
| 775 | public List<String> getMappings() { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 776 | //return arpCache.getMappings(); |
| 777 | return new ArrayList<String>(); |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 778 | } |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 779 | |
| 780 | /* |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 781 | @Override |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 782 | public void arpRequestNotification(ArpMessage arpMessage) { |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 783 | log.debug("Received ARP notification from other instances"); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 784 | |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 785 | switch (arpMessage.getType()){ |
| 786 | case REQUEST: |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 787 | if(arpMessage.getOutSwitch() == -1 || arpMessage.getOutPort() == -1){ |
Jonathan Hart | f9bd98d | 2013-12-13 11:40:55 -0800 | [diff] [blame] | 788 | broadcastArpRequestOutMyEdge(arpMessage.getPacket(), |
| 789 | arpMessage.getInSwitch(), arpMessage.getInPort()); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 790 | }else{ |
| 791 | sendArpRequestOutPort(arpMessage.getPacket(),arpMessage.getOutSwitch(),arpMessage.getOutPort()); |
| 792 | log.debug("OutSwitch in ARP request message is: {}; OutPort in ARP request message is: {}",arpMessage.getOutSwitch(),arpMessage.getOutPort()); |
| 793 | } |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 794 | break; |
| 795 | case REPLY: |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 796 | log.debug("Received ARP reply notification for {}", |
| 797 | arpMessage.getAddress()); |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 798 | sendArpReplyToWaitingRequesters(arpMessage.getAddress(),arpMessage.getMAC()); |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 799 | break; |
| 800 | } |
| 801 | } |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 802 | */ |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 803 | |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 804 | private void sendArpReplyToWaitingRequesters(InetAddress address, MACAddress mac) { |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 805 | log.debug("Sending ARP reply for {} to requesters", |
| 806 | address.getHostAddress()); |
| 807 | |
| 808 | //See if anyone's waiting for this ARP reply |
| 809 | Set<ArpRequest> requests = arpRequests.get(address); |
| 810 | |
| 811 | //Synchronize on the Multimap while using an iterator for one of the sets |
| 812 | List<ArpRequest> requestsToSend = new ArrayList<ArpRequest>(requests.size()); |
| 813 | synchronized (arpRequests) { |
| 814 | Iterator<ArpRequest> it = requests.iterator(); |
| 815 | while (it.hasNext()) { |
| 816 | ArpRequest request = it.next(); |
| 817 | it.remove(); |
| 818 | requestsToSend.add(request); |
| 819 | } |
| 820 | } |
| 821 | |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 822 | /*IDeviceObject deviceObject = deviceStorage.getDeviceByIP( |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 823 | InetAddresses.coerceToInteger(address)); |
| 824 | |
| 825 | MACAddress mac = MACAddress.valueOf(deviceObject.getMACAddress()); |
| 826 | |
| 827 | log.debug("Found {} at {} in network map", |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 828 | address.getHostAddress(), mac);*/ |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 829 | |
| 830 | //Don't hold an ARP lock while dispatching requests |
| 831 | for (ArpRequest request : requestsToSend) { |
| 832 | request.dispatchReply(address, mac); |
| 833 | } |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 834 | } |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 835 | |
| 836 | @Override |
| 837 | public void arpReplyEvent(ArpReplyNotification arpReply) { |
| 838 | log.debug("Received ARP reply notification for {}", |
| 839 | arpReply.getTargetAddress()); |
| 840 | sendArpReplyToWaitingRequesters(arpReply.getTargetAddress(), |
| 841 | arpReply.getTargetMacAddress()); |
| 842 | } |
| 843 | |
| 844 | @Override |
| 845 | public void packetOutNotification( |
| 846 | PacketOutNotification packetOutNotification) { |
| 847 | |
| 848 | if (packetOutNotification instanceof SinglePacketOutNotification) { |
| 849 | SinglePacketOutNotification notification = |
| 850 | (SinglePacketOutNotification) packetOutNotification; |
| 851 | sendArpRequestOutPort(notification.packet, notification.getOutSwitch(), |
| 852 | notification.getOutPort()); |
| 853 | } |
| 854 | else if (packetOutNotification instanceof BroadcastPacketOutNotification) { |
| 855 | BroadcastPacketOutNotification notification = |
| 856 | (BroadcastPacketOutNotification) packetOutNotification; |
| 857 | broadcastArpRequestOutMyEdge(notification.packet, |
| 858 | notification.getInSwitch(), notification.getInPort()); |
| 859 | } |
| 860 | else { |
| 861 | log.warn("Unknown packet out notification received"); |
| 862 | } |
| 863 | } |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 864 | } |