Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 1 | package net.onrc.onos.ofcontroller.proxyarp; |
| 2 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 3 | import java.net.InetAddress; |
| 4 | import java.net.UnknownHostException; |
| 5 | import java.util.ArrayList; |
| 6 | import java.util.Collection; |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 7 | import java.util.HashMap; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 8 | import java.util.Iterator; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 9 | import java.util.List; |
| 10 | import java.util.Map; |
| 11 | import java.util.Set; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 12 | import java.util.Timer; |
| 13 | import java.util.TimerTask; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 14 | |
| 15 | import net.floodlightcontroller.core.FloodlightContext; |
| 16 | import net.floodlightcontroller.core.IFloodlightProviderService; |
| 17 | import net.floodlightcontroller.core.IOFMessageListener; |
| 18 | import net.floodlightcontroller.core.IOFSwitch; |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 19 | import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| 20 | import net.floodlightcontroller.core.module.IFloodlightModule; |
| 21 | import net.floodlightcontroller.core.module.IFloodlightService; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 22 | import net.floodlightcontroller.packet.ARP; |
| 23 | import net.floodlightcontroller.packet.Ethernet; |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 24 | import net.floodlightcontroller.packet.IPv4; |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 25 | import net.floodlightcontroller.restserver.IRestApiService; |
Jonathan Hart | 8ec133c | 2013-06-26 15:25:18 +1200 | [diff] [blame] | 26 | import net.floodlightcontroller.util.MACAddress; |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 27 | import net.onrc.onos.datagrid.IDatagridService; |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 28 | import net.onrc.onos.ofcontroller.bgproute.Interface; |
Jonathan Hart | ebba1e1 | 2013-10-29 11:37:02 -0700 | [diff] [blame] | 29 | import net.onrc.onos.ofcontroller.core.config.IConfigInfoService; |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 30 | import net.onrc.onos.ofcontroller.flowprogrammer.IFlowPusherService; |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 31 | import net.onrc.onos.ofcontroller.util.SwitchPort; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 32 | |
| 33 | import org.openflow.protocol.OFMessage; |
| 34 | import org.openflow.protocol.OFPacketIn; |
| 35 | import org.openflow.protocol.OFPacketOut; |
| 36 | import org.openflow.protocol.OFPort; |
| 37 | import org.openflow.protocol.OFType; |
| 38 | import org.openflow.protocol.action.OFAction; |
| 39 | import org.openflow.protocol.action.OFActionOutput; |
Jonathan Hart | 8ec133c | 2013-06-26 15:25:18 +1200 | [diff] [blame] | 40 | import org.openflow.util.HexString; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 41 | import org.slf4j.Logger; |
| 42 | import org.slf4j.LoggerFactory; |
| 43 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 44 | import com.google.common.collect.HashMultimap; |
| 45 | import com.google.common.collect.Multimaps; |
| 46 | import com.google.common.collect.SetMultimap; |
| 47 | |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 48 | public class ProxyArpManager implements IProxyArpService, IOFMessageListener, |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 49 | IPacketOutEventHandler, IArpReplyEventHandler, |
| 50 | IFloodlightModule { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 51 | private final static Logger log = LoggerFactory.getLogger(ProxyArpManager.class); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 52 | |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 53 | private final long ARP_TIMER_PERIOD = 100; //ms |
| 54 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 55 | private static final int ARP_REQUEST_TIMEOUT = 2000; //ms |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 56 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 57 | private IFloodlightProviderService floodlightProvider; |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 58 | private IDatagridService datagrid; |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 59 | private IConfigInfoService configService; |
| 60 | private IRestApiService restApi; |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 61 | private IFlowPusherService flowPusher; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 62 | |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 63 | private short vlan; |
| 64 | private static final short NO_VLAN = 0; |
| 65 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 66 | //private ArpCache arpCache; |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 67 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 68 | private SetMultimap<InetAddress, ArpRequest> arpRequests; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 69 | |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 70 | private static class ArpRequest { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 71 | private final IArpRequester requester; |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 72 | private final boolean retry; |
Naoki Shiota | 78e403c | 2014-02-20 17:13:36 -0800 | [diff] [blame] | 73 | private boolean sent = false; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 74 | private long requestTime; |
| 75 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 76 | public ArpRequest(IArpRequester requester, boolean retry){ |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 77 | this.requester = requester; |
| 78 | this.retry = retry; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 79 | } |
| 80 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 81 | public ArpRequest(ArpRequest old) { |
| 82 | this.requester = old.requester; |
| 83 | this.retry = old.retry; |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 84 | } |
| 85 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 86 | public boolean isExpired() { |
Naoki Shiota | 78e403c | 2014-02-20 17:13:36 -0800 | [diff] [blame] | 87 | return sent && ((System.currentTimeMillis() - requestTime) > ARP_REQUEST_TIMEOUT); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 88 | } |
| 89 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 90 | public boolean shouldRetry() { |
| 91 | return retry; |
| 92 | } |
| 93 | |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 94 | public void dispatchReply(InetAddress ipAddress, MACAddress replyMacAddress) { |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 95 | requester.arpResponse(ipAddress, replyMacAddress); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 96 | } |
Naoki Shiota | 78e403c | 2014-02-20 17:13:36 -0800 | [diff] [blame] | 97 | |
| 98 | public void setRequestTime() { |
| 99 | this.requestTime = System.currentTimeMillis(); |
| 100 | this.sent = true; |
| 101 | } |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 102 | } |
| 103 | |
Jonathan Hart | da4d0e1 | 2013-09-30 21:00:20 +1300 | [diff] [blame] | 104 | private class HostArpRequester implements IArpRequester { |
| 105 | private final ARP arpRequest; |
| 106 | private final long dpid; |
| 107 | private final short port; |
| 108 | |
| 109 | public HostArpRequester(ARP arpRequest, long dpid, short port) { |
| 110 | this.arpRequest = arpRequest; |
| 111 | this.dpid = dpid; |
| 112 | this.port = port; |
| 113 | } |
| 114 | |
| 115 | @Override |
| 116 | public void arpResponse(InetAddress ipAddress, MACAddress macAddress) { |
| 117 | ProxyArpManager.this.sendArpReply(arpRequest, dpid, port, macAddress); |
| 118 | } |
| 119 | } |
| 120 | |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 121 | @Override |
| 122 | public Collection<Class<? extends IFloodlightService>> getModuleServices() { |
| 123 | Collection<Class<? extends IFloodlightService>> l |
| 124 | = new ArrayList<Class<? extends IFloodlightService>>(); |
| 125 | l.add(IProxyArpService.class); |
| 126 | return l; |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 127 | } |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 128 | |
| 129 | @Override |
| 130 | public Map<Class<? extends IFloodlightService>, IFloodlightService> getServiceImpls() { |
| 131 | Map<Class<? extends IFloodlightService>, IFloodlightService> m |
| 132 | = new HashMap<Class<? extends IFloodlightService>, IFloodlightService>(); |
| 133 | m.put(IProxyArpService.class, this); |
| 134 | return m; |
| 135 | } |
| 136 | |
| 137 | @Override |
| 138 | public Collection<Class<? extends IFloodlightService>> getModuleDependencies() { |
| 139 | Collection<Class<? extends IFloodlightService>> dependencies |
| 140 | = new ArrayList<Class<? extends IFloodlightService>>(); |
| 141 | dependencies.add(IFloodlightProviderService.class); |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 142 | dependencies.add(IRestApiService.class); |
| 143 | dependencies.add(IDatagridService.class); |
| 144 | dependencies.add(IConfigInfoService.class); |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 145 | dependencies.add(IFlowPusherService.class); |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 146 | return dependencies; |
| 147 | } |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 148 | |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 149 | @Override |
| 150 | public void init(FloodlightModuleContext context){ |
| 151 | this.floodlightProvider = |
| 152 | context.getServiceImpl(IFloodlightProviderService.class); |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 153 | this.datagrid = context.getServiceImpl(IDatagridService.class); |
| 154 | this.configService = context.getServiceImpl(IConfigInfoService.class); |
| 155 | this.restApi = context.getServiceImpl(IRestApiService.class); |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 156 | this.flowPusher = context.getServiceImpl(IFlowPusherService.class); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 157 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 158 | //arpCache = new ArpCache(); |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 159 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 160 | arpRequests = Multimaps.synchronizedSetMultimap( |
| 161 | HashMultimap.<InetAddress, ArpRequest>create()); |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 162 | |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 163 | } |
| 164 | |
Jonathan Hart | e93aed4 | 2013-12-05 18:39:50 -0800 | [diff] [blame] | 165 | @Override |
| 166 | public void startUp(FloodlightModuleContext context) { |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 167 | this.vlan = configService.getVlan(); |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 168 | log.info("vlan set to {}", this.vlan); |
| 169 | |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 170 | restApi.addRestletRoutable(new ArpWebRoutable()); |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 171 | floodlightProvider.addOFMessageListener(OFType.PACKET_IN, this); |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 172 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 173 | datagrid.registerPacketOutEventHandler(this); |
Jonathan Hart | 016f03b | 2014-01-23 13:56:43 -0800 | [diff] [blame] | 174 | datagrid.registerArpReplyEventHandler(this); |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 175 | |
Jonathan Hart | 4aa2b4e | 2013-09-24 14:50:23 +1200 | [diff] [blame] | 176 | Timer arpTimer = new Timer("arp-processing"); |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 177 | arpTimer.scheduleAtFixedRate(new TimerTask() { |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 178 | @Override |
| 179 | public void run() { |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 180 | doPeriodicArpProcessing(); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 181 | } |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 182 | }, 0, ARP_TIMER_PERIOD); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 183 | } |
| 184 | |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 185 | /* |
| 186 | * Function that runs periodically to manage the asynchronous request mechanism. |
| 187 | * It basically cleans up old ARP requests if we don't get a response for them. |
| 188 | * The caller can designate that a request should be retried indefinitely, and |
| 189 | * this task will handle that as well. |
| 190 | */ |
| 191 | private void doPeriodicArpProcessing() { |
| 192 | SetMultimap<InetAddress, ArpRequest> retryList |
| 193 | = HashMultimap.<InetAddress, ArpRequest>create(); |
| 194 | |
| 195 | //Have to synchronize externally on the Multimap while using an iterator, |
| 196 | //even though it's a synchronizedMultimap |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 197 | synchronized (arpRequests) { |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 198 | Iterator<Map.Entry<InetAddress, ArpRequest>> it |
| 199 | = arpRequests.entries().iterator(); |
| 200 | |
| 201 | while (it.hasNext()) { |
| 202 | Map.Entry<InetAddress, ArpRequest> entry |
| 203 | = it.next(); |
| 204 | ArpRequest request = entry.getValue(); |
| 205 | if (request.isExpired()) { |
| 206 | log.debug("Cleaning expired ARP request for {}", |
| 207 | entry.getKey().getHostAddress()); |
| 208 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 209 | // If the ARP request is expired and then delete the device |
| 210 | // TODO check whether this is OK from this thread |
Pavlin Radoslavov | 5fe7188 | 2014-03-21 16:27:21 -0700 | [diff] [blame] | 211 | // TODO: Fix the code below after deviceStorage was removed |
| 212 | /* |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 213 | IDeviceObject targetDevice = |
| 214 | deviceStorage.getDeviceByIP(InetAddresses.coerceToInteger(entry.getKey())); |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 215 | if (targetDevice != null) { |
| 216 | deviceStorage.removeDevice(targetDevice); |
Yuta HIGUCHI | 5302ddf | 2014-01-06 12:53:35 -0800 | [diff] [blame] | 217 | if (log.isDebugEnabled()) { |
| 218 | log.debug("RemoveDevice: {} due to no have not recieve the ARP reply", targetDevice); |
| 219 | } |
Jonathan Hart | d857ad6 | 2013-12-14 18:08:17 -0800 | [diff] [blame] | 220 | } |
Pavlin Radoslavov | 5fe7188 | 2014-03-21 16:27:21 -0700 | [diff] [blame] | 221 | */ |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 222 | |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 223 | it.remove(); |
| 224 | |
| 225 | if (request.shouldRetry()) { |
| 226 | retryList.put(entry.getKey(), request); |
| 227 | } |
| 228 | } |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 229 | } |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 230 | } |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 231 | |
| 232 | for (Map.Entry<InetAddress, Collection<ArpRequest>> entry |
| 233 | : retryList.asMap().entrySet()) { |
| 234 | |
| 235 | InetAddress address = entry.getKey(); |
| 236 | |
| 237 | log.debug("Resending ARP request for {}", address.getHostAddress()); |
| 238 | |
pingping-lin | ba5c52f | 2014-02-11 16:52:01 -0800 | [diff] [blame] | 239 | // Only ARP requests sent by the controller will have the retry flag |
| 240 | // set, so for now we can just send a new ARP request for that address. |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 241 | sendArpRequestForAddress(address); |
| 242 | |
| 243 | for (ArpRequest request : entry.getValue()) { |
| 244 | arpRequests.put(address, new ArpRequest(request)); |
| 245 | } |
| 246 | } |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 247 | } |
| 248 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 249 | @Override |
| 250 | public String getName() { |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 251 | return "proxyarpmanager"; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | @Override |
| 255 | public boolean isCallbackOrderingPrereq(OFType type, String name) { |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 256 | if (type == OFType.PACKET_IN) { |
Jonathan Hart | d857ad6 | 2013-12-14 18:08:17 -0800 | [diff] [blame] | 257 | return "devicemanager".equals(name) || "onosdevicemanager".equals(name); |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 258 | } |
| 259 | else { |
| 260 | return false; |
| 261 | } |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 262 | } |
| 263 | |
| 264 | @Override |
| 265 | public boolean isCallbackOrderingPostreq(OFType type, String name) { |
Jonathan Hart | d857ad6 | 2013-12-14 18:08:17 -0800 | [diff] [blame] | 266 | return type == OFType.PACKET_IN && "onosforwarding".equals(name); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 267 | } |
| 268 | |
| 269 | @Override |
| 270 | public Command receive( |
| 271 | IOFSwitch sw, OFMessage msg, FloodlightContext cntx) { |
| 272 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 273 | OFPacketIn pi = (OFPacketIn) msg; |
| 274 | |
| 275 | Ethernet eth = IFloodlightProviderService.bcStore.get(cntx, |
| 276 | IFloodlightProviderService.CONTEXT_PI_PAYLOAD); |
| 277 | |
| 278 | if (eth.getEtherType() == Ethernet.TYPE_ARP){ |
Jonathan Hart | 5ea7cc0 | 2013-11-12 11:56:23 -0800 | [diff] [blame] | 279 | ARP arp = (ARP) eth.getPayload(); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 280 | if (arp.getOpCode() == ARP.OP_REQUEST) { |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 281 | handleArpRequest(sw, pi, arp, eth); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 282 | } |
| 283 | else if (arp.getOpCode() == ARP.OP_REPLY) { |
Jonathan Hart | 016f03b | 2014-01-23 13:56:43 -0800 | [diff] [blame] | 284 | // For replies we simply send a notification via Hazelcast |
Jonathan Hart | c632562 | 2014-01-14 16:37:50 -0800 | [diff] [blame] | 285 | sendArpReplyNotification(eth, pi); |
Jonathan Hart | 016f03b | 2014-01-23 13:56:43 -0800 | [diff] [blame] | 286 | |
| 287 | //handleArpReply(sw, pi, arp); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 288 | } |
Jonathan Hart | 1767299 | 2013-12-12 16:15:16 -0800 | [diff] [blame] | 289 | |
| 290 | // Stop ARP packets here |
| 291 | return Command.STOP; |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 292 | } |
| 293 | |
Jonathan Hart | 1767299 | 2013-12-12 16:15:16 -0800 | [diff] [blame] | 294 | // Propagate everything else |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 295 | return Command.CONTINUE; |
| 296 | } |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 297 | |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 298 | private void handleArpRequest(IOFSwitch sw, OFPacketIn pi, ARP arp, Ethernet eth) { |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 299 | if (log.isTraceEnabled()) { |
| 300 | log.trace("ARP request received for {}", |
| 301 | inetAddressToString(arp.getTargetProtocolAddress())); |
| 302 | } |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 303 | |
| 304 | InetAddress target; |
| 305 | try { |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 306 | target = InetAddress.getByAddress(arp.getTargetProtocolAddress()); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 307 | } catch (UnknownHostException e) { |
| 308 | log.debug("Invalid address in ARP request", e); |
| 309 | return; |
| 310 | } |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 311 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 312 | if (configService.fromExternalNetwork(sw.getId(), pi.getInPort())) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 313 | //If the request came from outside our network, we only care if |
| 314 | //it was a request for one of our interfaces. |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 315 | if (configService.isInterfaceAddress(target)) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 316 | log.trace("ARP request for our interface. Sending reply {} => {}", |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 317 | target.getHostAddress(), configService.getRouterMacAddress()); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 318 | |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 319 | sendArpReply(arp, sw.getId(), pi.getInPort(), |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 320 | configService.getRouterMacAddress()); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 321 | } |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 322 | |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 323 | return; |
| 324 | } |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 325 | |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 326 | //MACAddress macAddress = arpCache.lookup(target); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 327 | |
| 328 | arpRequests.put(target, new ArpRequest( |
| 329 | new HostArpRequester(arp, sw.getId(), pi.getInPort()), false)); |
| 330 | |
Pavlin Radoslavov | 5fe7188 | 2014-03-21 16:27:21 -0700 | [diff] [blame] | 331 | // TODO: Fix the code below after deviceStorage was removed |
| 332 | /* |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 333 | IDeviceObject targetDevice = |
| 334 | deviceStorage.getDeviceByIP(InetAddresses.coerceToInteger(target)); |
Pavlin Radoslavov | 5fe7188 | 2014-03-21 16:27:21 -0700 | [diff] [blame] | 335 | */ |
Pavlin Radoslavov | 4cf8ee5 | 2014-03-26 18:19:58 -0700 | [diff] [blame] | 336 | |
| 337 | // TODO: Fix the code below after deviceStorage was removed |
| 338 | /* |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 339 | if (targetDevice == null) { |
| 340 | if (log.isTraceEnabled()) { |
| 341 | log.trace("No device info found for {} - broadcasting", |
| 342 | target.getHostAddress()); |
| 343 | } |
| 344 | |
| 345 | // We don't know the device so broadcast the request out |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 346 | datagrid.sendPacketOutNotification( |
Naoki Shiota | 78e403c | 2014-02-20 17:13:36 -0800 | [diff] [blame] | 347 | new BroadcastPacketOutNotification(eth.serialize(), |
| 348 | target, sw.getId(), pi.getInPort())); |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 349 | } |
| 350 | else { |
| 351 | // Even if the device exists in our database, we do not reply to |
| 352 | // the request directly, but check whether the device is still valid |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 353 | MACAddress macAddress = MACAddress.valueOf(targetDevice.getMACAddress()); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 354 | |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 355 | if (log.isTraceEnabled()) { |
Yuta HIGUCHI | 5302ddf | 2014-01-06 12:53:35 -0800 | [diff] [blame] | 356 | 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] | 357 | new Object [] { |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 358 | inetAddressToString(arp.getTargetProtocolAddress()), |
Yuta HIGUCHI | 5302ddf | 2014-01-06 12:53:35 -0800 | [diff] [blame] | 359 | macAddress, |
Jonathan Hart | a18e479 | 2013-10-31 10:10:54 -0700 | [diff] [blame] | 360 | HexString.toHexString(sw.getId()), pi.getInPort()}); |
| 361 | } |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 362 | |
| 363 | // sendArpReply(arp, sw.getId(), pi.getInPort(), macAddress); |
| 364 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 365 | Iterable<IPortObject> outPorts = targetDevice.getAttachedPorts(); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 366 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 367 | if (!outPorts.iterator().hasNext()){ |
| 368 | if (log.isTraceEnabled()) { |
| 369 | log.trace("Device {} exists but is not connected to any ports" + |
| 370 | " - broadcasting", macAddress); |
| 371 | } |
| 372 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 373 | datagrid.sendPacketOutNotification( |
| 374 | new BroadcastPacketOutNotification(eth.serialize(), |
Naoki Shiota | 78e403c | 2014-02-20 17:13:36 -0800 | [diff] [blame] | 375 | target, sw.getId(), pi.getInPort())); |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 376 | } |
| 377 | else { |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 378 | for (IPortObject portObject : outPorts) { |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 379 | //long outSwitch = 0; |
| 380 | //short outPort = 0; |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 381 | |
Pavlin Radoslavov | 4cf8ee5 | 2014-03-26 18:19:58 -0700 | [diff] [blame] | 382 | // if (!portObject.getLinkedPorts().iterator().hasNext()) { |
| 383 | // outPort = portObject.getNumber(); |
| 384 | // } |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 385 | if (portObject.getLinkedPorts().iterator().hasNext()) { |
| 386 | continue; |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 387 | } |
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 | short outPort = portObject.getNumber(); |
pingping-lin | 568c601 | 2013-12-14 05:57:11 +0800 | [diff] [blame] | 390 | ISwitchObject outSwitchObject = portObject.getSwitch(); |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 391 | long outSwitch = HexString.toLong(outSwitchObject.getDPID()); |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 392 | |
| 393 | if (log.isTraceEnabled()) { |
| 394 | log.trace("Probing device {} on port {}/{}", |
| 395 | new Object[] {macAddress, |
| 396 | HexString.toHexString(outSwitch), outPort}); |
| 397 | } |
pingping-lin | 568c601 | 2013-12-14 05:57:11 +0800 | [diff] [blame] | 398 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 399 | datagrid.sendPacketOutNotification( |
| 400 | new SinglePacketOutNotification(eth.serialize(), |
Naoki Shiota | 78e403c | 2014-02-20 17:13:36 -0800 | [diff] [blame] | 401 | target, outSwitch, outPort)); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 402 | } |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 403 | } |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 404 | } |
Pavlin Radoslavov | 4cf8ee5 | 2014-03-26 18:19:58 -0700 | [diff] [blame] | 405 | */ |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 406 | } |
| 407 | |
Jonathan Hart | 1912afc | 2013-10-11 12:02:44 +1300 | [diff] [blame] | 408 | private void handleArpReply(IOFSwitch sw, OFPacketIn pi, ARP arp){ |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 409 | if (log.isTraceEnabled()) { |
| 410 | log.trace("ARP reply recieved: {} => {}, on {}/{}", new Object[] { |
| 411 | inetAddressToString(arp.getSenderProtocolAddress()), |
| 412 | HexString.toHexString(arp.getSenderHardwareAddress()), |
| 413 | HexString.toHexString(sw.getId()), pi.getInPort()}); |
| 414 | } |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 415 | |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 416 | InetAddress senderIpAddress; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 417 | try { |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 418 | senderIpAddress = InetAddress.getByAddress(arp.getSenderProtocolAddress()); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 419 | } catch (UnknownHostException e) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 420 | log.debug("Invalid address in ARP reply", e); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 421 | return; |
| 422 | } |
| 423 | |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 424 | MACAddress senderMacAddress = MACAddress.valueOf(arp.getSenderHardwareAddress()); |
| 425 | |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 426 | //See if anyone's waiting for this ARP reply |
| 427 | Set<ArpRequest> requests = arpRequests.get(senderIpAddress); |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 428 | |
| 429 | //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] | 430 | List<ArpRequest> requestsToSend = new ArrayList<ArpRequest>(requests.size()); |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 431 | synchronized (arpRequests) { |
| 432 | Iterator<ArpRequest> it = requests.iterator(); |
| 433 | while (it.hasNext()) { |
| 434 | ArpRequest request = it.next(); |
| 435 | it.remove(); |
Jonathan Hart | e751e1c | 2013-08-23 00:48:47 +1200 | [diff] [blame] | 436 | requestsToSend.add(request); |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 437 | } |
| 438 | } |
Jonathan Hart | e751e1c | 2013-08-23 00:48:47 +1200 | [diff] [blame] | 439 | |
| 440 | //Don't hold an ARP lock while dispatching requests |
| 441 | for (ArpRequest request : requestsToSend) { |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 442 | request.dispatchReply(senderIpAddress, senderMacAddress); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 443 | } |
| 444 | } |
| 445 | |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 446 | private void sendArpRequestForAddress(InetAddress ipAddress) { |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 447 | //TODO what should the sender IP address and MAC address be if no |
| 448 | //IP addresses are configured? Will there ever be a need to send |
| 449 | //ARP requests from the controller in that case? |
| 450 | //All-zero MAC address doesn't seem to work - hosts don't respond to it |
| 451 | |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 452 | byte[] zeroIpv4 = {0x0, 0x0, 0x0, 0x0}; |
| 453 | byte[] zeroMac = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0}; |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 454 | byte[] genericNonZeroMac = {0x0, 0x0, 0x0, 0x0, 0x0, 0x01}; |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 455 | byte[] broadcastMac = {(byte)0xff, (byte)0xff, (byte)0xff, |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 456 | (byte)0xff, (byte)0xff, (byte)0xff}; |
| 457 | |
| 458 | ARP arpRequest = new ARP(); |
| 459 | |
| 460 | arpRequest.setHardwareType(ARP.HW_TYPE_ETHERNET) |
| 461 | .setProtocolType(ARP.PROTO_TYPE_IP) |
| 462 | .setHardwareAddressLength((byte)Ethernet.DATALAYER_ADDRESS_LENGTH) |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 463 | .setProtocolAddressLength((byte)IPv4.ADDRESS_LENGTH) |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 464 | .setOpCode(ARP.OP_REQUEST) |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 465 | .setTargetHardwareAddress(zeroMac) |
| 466 | .setTargetProtocolAddress(ipAddress.getAddress()); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 467 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 468 | MACAddress routerMacAddress = configService.getRouterMacAddress(); |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 469 | //TODO hack for now as it's unclear what the MAC address should be |
| 470 | byte[] senderMacAddress = genericNonZeroMac; |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 471 | if (routerMacAddress != null) { |
| 472 | senderMacAddress = routerMacAddress.toBytes(); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 473 | } |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 474 | arpRequest.setSenderHardwareAddress(senderMacAddress); |
| 475 | |
| 476 | byte[] senderIPAddress = zeroIpv4; |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 477 | Interface intf = configService.getOutgoingInterface(ipAddress); |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 478 | if (intf != null) { |
| 479 | senderIPAddress = intf.getIpAddress().getAddress(); |
| 480 | } |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 481 | |
| 482 | arpRequest.setSenderProtocolAddress(senderIPAddress); |
| 483 | |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 484 | Ethernet eth = new Ethernet(); |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 485 | eth.setSourceMACAddress(senderMacAddress) |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 486 | .setDestinationMACAddress(broadcastMac) |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 487 | .setEtherType(Ethernet.TYPE_ARP) |
| 488 | .setPayload(arpRequest); |
| 489 | |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 490 | if (vlan != NO_VLAN) { |
| 491 | eth.setVlanID(vlan) |
| 492 | .setPriorityCode((byte)0); |
| 493 | } |
| 494 | |
pingping-lin | ba5c52f | 2014-02-11 16:52:01 -0800 | [diff] [blame] | 495 | //sendArpRequestToSwitches(ipAddress, eth.serialize()); |
Naoki Shiota | 78e403c | 2014-02-20 17:13:36 -0800 | [diff] [blame] | 496 | datagrid.sendPacketOutNotification(new SinglePacketOutNotification(eth.serialize(), |
| 497 | ipAddress, intf.getDpid(),intf.getPort())); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 498 | } |
| 499 | |
| 500 | private void sendArpRequestToSwitches(InetAddress dstAddress, byte[] arpRequest) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 501 | sendArpRequestToSwitches(dstAddress, arpRequest, |
| 502 | 0, OFPort.OFPP_NONE.getValue()); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 503 | } |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 504 | |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 505 | private void sendArpRequestToSwitches(InetAddress dstAddress, byte[] arpRequest, |
| 506 | long inSwitch, short inPort) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 507 | |
Jonathan Hart | a888764 | 2013-10-28 13:46:54 -0700 | [diff] [blame] | 508 | if (configService.hasLayer3Configuration()) { |
| 509 | Interface intf = configService.getOutgoingInterface(dstAddress); |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 510 | if (intf != null) { |
| 511 | sendArpRequestOutPort(arpRequest, intf.getDpid(), intf.getPort()); |
| 512 | } |
| 513 | else { |
| 514 | //TODO here it should be broadcast out all non-interface edge ports. |
| 515 | //I think we can assume that if it's not a request for an external |
| 516 | //network, it's an ARP for a host in our own network. So we want to |
| 517 | //send it out all edge ports that don't have an interface configured |
| 518 | //to ensure it reaches all hosts in our network. |
| 519 | log.debug("No interface found to send ARP request for {}", |
| 520 | dstAddress.getHostAddress()); |
| 521 | } |
| 522 | } |
| 523 | else { |
pingping-lin | ba5c52f | 2014-02-11 16:52:01 -0800 | [diff] [blame] | 524 | //broadcastArpRequestOutEdge(arpRequest, inSwitch, inPort); |
| 525 | broadcastArpRequestOutMyEdge(arpRequest, inSwitch, inPort); |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 526 | } |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 527 | } |
| 528 | |
Jonathan Hart | c632562 | 2014-01-14 16:37:50 -0800 | [diff] [blame] | 529 | private void sendArpReplyNotification(Ethernet eth, OFPacketIn pi) { |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 530 | ARP arp = (ARP) eth.getPayload(); |
| 531 | |
| 532 | if (log.isTraceEnabled()) { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 533 | log.trace("Sending ARP reply for {} to other ONOS instances", |
| 534 | inetAddressToString(arp.getSenderProtocolAddress())); |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 535 | } |
| 536 | |
| 537 | InetAddress targetAddress; |
| 538 | MACAddress mac = new MACAddress(arp.getSenderHardwareAddress()); |
| 539 | |
| 540 | try { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 541 | targetAddress = InetAddress.getByAddress(arp.getSenderProtocolAddress()); |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 542 | } catch (UnknownHostException e) { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 543 | log.error("Unknown host", e); |
| 544 | return; |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 545 | } |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 546 | |
| 547 | datagrid.sendArpReplyNotification(new ArpReplyNotification(targetAddress, mac)); |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 548 | } |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 549 | |
Jonathan Hart | f9bd98d | 2013-12-13 11:40:55 -0800 | [diff] [blame] | 550 | private void broadcastArpRequestOutMyEdge(byte[] arpRequest, |
| 551 | long inSwitch, short inPort) { |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 552 | List<SwitchPort> switchPorts = new ArrayList<SwitchPort>(); |
| 553 | |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 554 | for (IOFSwitch sw : floodlightProvider.getSwitches().values()) { |
| 555 | |
| 556 | OFPacketOut po = new OFPacketOut(); |
| 557 | po.setInPort(OFPort.OFPP_NONE) |
| 558 | .setBufferId(-1) |
| 559 | .setPacketData(arpRequest); |
| 560 | |
| 561 | List<OFAction> actions = new ArrayList<OFAction>(); |
Pavlin Radoslavov | 5fe7188 | 2014-03-21 16:27:21 -0700 | [diff] [blame] | 562 | |
| 563 | // TODO: Fix the code below after topoSwitchService was removed |
| 564 | /* |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 565 | Iterable<IPortObject> ports |
| 566 | = topoSwitchService.getPortsOnSwitch(sw.getStringId()); |
| 567 | if (ports == null) { |
| 568 | continue; |
| 569 | } |
| 570 | |
| 571 | for (IPortObject portObject : ports) { |
| 572 | if (!portObject.getLinkedPorts().iterator().hasNext()) { |
Jonathan Hart | f9bd98d | 2013-12-13 11:40:55 -0800 | [diff] [blame] | 573 | short portNumber = portObject.getNumber(); |
| 574 | |
| 575 | if (sw.getId() == inSwitch && portNumber == inPort) { |
| 576 | // This is the port that the ARP message came in, |
| 577 | // so don't broadcast out this port |
| 578 | continue; |
| 579 | } |
| 580 | |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 581 | switchPorts.add(new SwitchPort(new Dpid(sw.getId()), |
Jonathan Hart | f9bd98d | 2013-12-13 11:40:55 -0800 | [diff] [blame] | 582 | new Port(portNumber))); |
| 583 | actions.add(new OFActionOutput(portNumber)); |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 584 | } |
| 585 | } |
Pavlin Radoslavov | 5fe7188 | 2014-03-21 16:27:21 -0700 | [diff] [blame] | 586 | */ |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 587 | |
| 588 | po.setActions(actions); |
| 589 | short actionsLength = (short) |
| 590 | (actions.size() * OFActionOutput.MINIMUM_LENGTH); |
| 591 | po.setActionsLength(actionsLength); |
| 592 | po.setLengthU(OFPacketOut.MINIMUM_LENGTH + actionsLength |
| 593 | + arpRequest.length); |
| 594 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 595 | flowPusher.add(sw, po); |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 596 | } |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 597 | |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 598 | if (log.isTraceEnabled()) { |
| 599 | log.trace("Broadcast ARP request to: {}", switchPorts); |
| 600 | } |
Jonathan Hart | 9a21e0d | 2013-11-14 15:09:09 -0800 | [diff] [blame] | 601 | } |
| 602 | |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 603 | private void sendArpRequestOutPort(byte[] arpRequest, long dpid, short port) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 604 | if (log.isTraceEnabled()) { |
| 605 | log.trace("Sending ARP request out {}/{}", |
| 606 | HexString.toHexString(dpid), port); |
| 607 | } |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 608 | |
| 609 | OFPacketOut po = new OFPacketOut(); |
| 610 | po.setInPort(OFPort.OFPP_NONE) |
| 611 | .setBufferId(-1) |
| 612 | .setPacketData(arpRequest); |
| 613 | |
| 614 | List<OFAction> actions = new ArrayList<OFAction>(); |
| 615 | actions.add(new OFActionOutput(port)); |
| 616 | po.setActions(actions); |
| 617 | short actionsLength = (short) (actions.size() * OFActionOutput.MINIMUM_LENGTH); |
| 618 | po.setActionsLength(actionsLength); |
| 619 | po.setLengthU(OFPacketOut.MINIMUM_LENGTH + actionsLength |
| 620 | + arpRequest.length); |
| 621 | |
| 622 | IOFSwitch sw = floodlightProvider.getSwitches().get(dpid); |
| 623 | |
| 624 | if (sw == null) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 625 | log.warn("Switch not found when sending ARP request"); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 626 | return; |
| 627 | } |
| 628 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 629 | flowPusher.add(sw, po); |
Jonathan Hart | 2f790d2 | 2013-08-15 14:01:24 +1200 | [diff] [blame] | 630 | } |
| 631 | |
Jonathan Hart | da4d0e1 | 2013-09-30 21:00:20 +1300 | [diff] [blame] | 632 | private void sendArpReply(ARP arpRequest, long dpid, short port, MACAddress targetMac) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 633 | if (log.isTraceEnabled()) { |
| 634 | log.trace("Sending reply {} => {} to {}", new Object[] { |
| 635 | inetAddressToString(arpRequest.getTargetProtocolAddress()), |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 636 | targetMac, |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 637 | inetAddressToString(arpRequest.getSenderProtocolAddress())}); |
| 638 | } |
Jonathan Hart | 1633a40 | 2013-08-24 11:38:56 +1200 | [diff] [blame] | 639 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 640 | ARP arpReply = new ARP(); |
| 641 | arpReply.setHardwareType(ARP.HW_TYPE_ETHERNET) |
| 642 | .setProtocolType(ARP.PROTO_TYPE_IP) |
| 643 | .setHardwareAddressLength((byte)Ethernet.DATALAYER_ADDRESS_LENGTH) |
Jonathan Hart | 08ee852 | 2013-09-22 17:34:43 +1200 | [diff] [blame] | 644 | .setProtocolAddressLength((byte)IPv4.ADDRESS_LENGTH) |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 645 | .setOpCode(ARP.OP_REPLY) |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 646 | .setSenderHardwareAddress(targetMac.toBytes()) |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 647 | .setSenderProtocolAddress(arpRequest.getTargetProtocolAddress()) |
| 648 | .setTargetHardwareAddress(arpRequest.getSenderHardwareAddress()) |
| 649 | .setTargetProtocolAddress(arpRequest.getSenderProtocolAddress()); |
| 650 | |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 651 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 652 | Ethernet eth = new Ethernet(); |
| 653 | eth.setDestinationMACAddress(arpRequest.getSenderHardwareAddress()) |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 654 | .setSourceMACAddress(targetMac.toBytes()) |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 655 | .setEtherType(Ethernet.TYPE_ARP) |
| 656 | .setPayload(arpReply); |
| 657 | |
Jonathan Hart | 1cf9de0 | 2013-10-21 17:42:29 -0700 | [diff] [blame] | 658 | if (vlan != NO_VLAN) { |
| 659 | eth.setVlanID(vlan) |
| 660 | .setPriorityCode((byte)0); |
| 661 | } |
| 662 | |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 663 | List<OFAction> actions = new ArrayList<OFAction>(); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 664 | actions.add(new OFActionOutput(port)); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 665 | |
| 666 | OFPacketOut po = new OFPacketOut(); |
| 667 | po.setInPort(OFPort.OFPP_NONE) |
| 668 | .setBufferId(-1) |
Jonathan Hart | 8ec133c | 2013-06-26 15:25:18 +1200 | [diff] [blame] | 669 | .setPacketData(eth.serialize()) |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 670 | .setActions(actions) |
| 671 | .setActionsLength((short)OFActionOutput.MINIMUM_LENGTH) |
| 672 | .setLengthU(OFPacketOut.MINIMUM_LENGTH + OFActionOutput.MINIMUM_LENGTH |
| 673 | + po.getPacketData().length); |
| 674 | |
| 675 | List<OFMessage> msgList = new ArrayList<OFMessage>(); |
| 676 | msgList.add(po); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 677 | |
| 678 | IOFSwitch sw = floodlightProvider.getSwitches().get(dpid); |
| 679 | |
| 680 | if (sw == null) { |
Jonathan Hart | 5b803bc | 2013-09-23 14:46:11 +1200 | [diff] [blame] | 681 | log.warn("Switch {} not found when sending ARP reply", |
Jonathan Hart | 1633a40 | 2013-08-24 11:38:56 +1200 | [diff] [blame] | 682 | HexString.toHexString(dpid)); |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 683 | return; |
| 684 | } |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 685 | |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 686 | flowPusher.add(sw, po); |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 687 | } |
Jonathan Hart | da4d0e1 | 2013-09-30 21:00:20 +1300 | [diff] [blame] | 688 | |
| 689 | private String inetAddressToString(byte[] bytes) { |
| 690 | try { |
| 691 | return InetAddress.getByAddress(bytes).getHostAddress(); |
| 692 | } catch (UnknownHostException e) { |
| 693 | log.debug("Invalid IP address", e); |
| 694 | return ""; |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | /* |
| 699 | * IProxyArpService methods |
| 700 | */ |
Jonathan Hart | c824ad0 | 2013-07-03 15:58:45 +1200 | [diff] [blame] | 701 | |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 702 | @Override |
Jonathan Hart | abad6a5 | 2013-09-30 18:17:21 +1300 | [diff] [blame] | 703 | public MACAddress getMacAddress(InetAddress ipAddress) { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 704 | //return arpCache.lookup(ipAddress); |
| 705 | return null; |
Jonathan Hart | 6261dcd | 2013-07-22 17:58:35 +1200 | [diff] [blame] | 706 | } |
Jonathan Hart | 4dfc365 | 2013-08-02 20:22:36 +1200 | [diff] [blame] | 707 | |
| 708 | @Override |
| 709 | public void sendArpRequest(InetAddress ipAddress, IArpRequester requester, |
| 710 | boolean retry) { |
Jonathan Hart | df6ec33 | 2013-08-04 01:37:14 +1200 | [diff] [blame] | 711 | arpRequests.put(ipAddress, new ArpRequest(requester, retry)); |
Jonathan Hart | f0c0dcb | 2013-07-24 15:28:42 +1200 | [diff] [blame] | 712 | |
Jonathan Hart | 6e61821 | 2013-08-21 22:28:43 +1200 | [diff] [blame] | 713 | //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] | 714 | if (!configService.isInterfaceAddress(ipAddress)) { |
Jonathan Hart | 6e61821 | 2013-08-21 22:28:43 +1200 | [diff] [blame] | 715 | sendArpRequestForAddress(ipAddress); |
| 716 | } |
| 717 | } |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 718 | |
| 719 | @Override |
| 720 | public List<String> getMappings() { |
Jonathan Hart | 18ad950 | 2013-12-15 18:28:00 -0800 | [diff] [blame] | 721 | //return arpCache.getMappings(); |
| 722 | return new ArrayList<String>(); |
Jonathan Hart | 5afde49 | 2013-10-01 12:30:53 +1300 | [diff] [blame] | 723 | } |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 724 | |
| 725 | /* |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 726 | @Override |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 727 | public void arpRequestNotification(ArpMessage arpMessage) { |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 728 | log.debug("Received ARP notification from other instances"); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 729 | |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 730 | switch (arpMessage.getType()){ |
| 731 | case REQUEST: |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 732 | if(arpMessage.getOutSwitch() == -1 || arpMessage.getOutPort() == -1){ |
Jonathan Hart | f9bd98d | 2013-12-13 11:40:55 -0800 | [diff] [blame] | 733 | broadcastArpRequestOutMyEdge(arpMessage.getPacket(), |
| 734 | arpMessage.getInSwitch(), arpMessage.getInPort()); |
pingping-lin | b8757bf | 2013-12-13 01:48:58 +0800 | [diff] [blame] | 735 | }else{ |
| 736 | sendArpRequestOutPort(arpMessage.getPacket(),arpMessage.getOutSwitch(),arpMessage.getOutPort()); |
| 737 | log.debug("OutSwitch in ARP request message is: {}; OutPort in ARP request message is: {}",arpMessage.getOutSwitch(),arpMessage.getOutPort()); |
| 738 | } |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 739 | break; |
| 740 | case REPLY: |
Jonathan Hart | ba9ced9 | 2013-11-24 16:52:13 -0800 | [diff] [blame] | 741 | log.debug("Received ARP reply notification for {}", |
| 742 | arpMessage.getAddress()); |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 743 | sendArpReplyToWaitingRequesters(arpMessage.getAddress(),arpMessage.getMAC()); |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 744 | break; |
| 745 | } |
| 746 | } |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 747 | */ |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 748 | |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 749 | private void sendArpReplyToWaitingRequesters(InetAddress address, MACAddress mac) { |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 750 | log.debug("Sending ARP reply for {} to requesters", |
| 751 | address.getHostAddress()); |
| 752 | |
| 753 | //See if anyone's waiting for this ARP reply |
| 754 | Set<ArpRequest> requests = arpRequests.get(address); |
| 755 | |
| 756 | //Synchronize on the Multimap while using an iterator for one of the sets |
| 757 | List<ArpRequest> requestsToSend = new ArrayList<ArpRequest>(requests.size()); |
| 758 | synchronized (arpRequests) { |
| 759 | Iterator<ArpRequest> it = requests.iterator(); |
| 760 | while (it.hasNext()) { |
| 761 | ArpRequest request = it.next(); |
| 762 | it.remove(); |
| 763 | requestsToSend.add(request); |
| 764 | } |
| 765 | } |
| 766 | |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 767 | /*IDeviceObject deviceObject = deviceStorage.getDeviceByIP( |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 768 | InetAddresses.coerceToInteger(address)); |
| 769 | |
| 770 | MACAddress mac = MACAddress.valueOf(deviceObject.getMACAddress()); |
| 771 | |
| 772 | log.debug("Found {} at {} in network map", |
pingping-lin | 017a892 | 2013-12-11 11:15:33 +0800 | [diff] [blame] | 773 | address.getHostAddress(), mac);*/ |
Jonathan Hart | d300325 | 2013-11-15 09:44:46 -0800 | [diff] [blame] | 774 | |
| 775 | //Don't hold an ARP lock while dispatching requests |
| 776 | for (ArpRequest request : requestsToSend) { |
| 777 | request.dispatchReply(address, mac); |
| 778 | } |
Jonathan Hart | 18ad55c | 2013-11-11 22:49:55 -0800 | [diff] [blame] | 779 | } |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 780 | |
| 781 | @Override |
| 782 | public void arpReplyEvent(ArpReplyNotification arpReply) { |
| 783 | log.debug("Received ARP reply notification for {}", |
| 784 | arpReply.getTargetAddress()); |
| 785 | sendArpReplyToWaitingRequesters(arpReply.getTargetAddress(), |
| 786 | arpReply.getTargetMacAddress()); |
| 787 | } |
| 788 | |
| 789 | @Override |
| 790 | public void packetOutNotification( |
| 791 | PacketOutNotification packetOutNotification) { |
| 792 | |
| 793 | if (packetOutNotification instanceof SinglePacketOutNotification) { |
| 794 | SinglePacketOutNotification notification = |
| 795 | (SinglePacketOutNotification) packetOutNotification; |
| 796 | sendArpRequestOutPort(notification.packet, notification.getOutSwitch(), |
| 797 | notification.getOutPort()); |
Naoki Shiota | 78e403c | 2014-02-20 17:13:36 -0800 | [diff] [blame] | 798 | |
| 799 | // set timestamp |
| 800 | InetAddress addr = notification.getTargetAddress(); |
| 801 | if (addr != null) { |
| 802 | for (ArpRequest request : arpRequests.get(addr)) { |
| 803 | request.setRequestTime(); |
| 804 | } |
| 805 | } |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 806 | } |
| 807 | else if (packetOutNotification instanceof BroadcastPacketOutNotification) { |
| 808 | BroadcastPacketOutNotification notification = |
| 809 | (BroadcastPacketOutNotification) packetOutNotification; |
| 810 | broadcastArpRequestOutMyEdge(notification.packet, |
| 811 | notification.getInSwitch(), notification.getInPort()); |
Naoki Shiota | 78e403c | 2014-02-20 17:13:36 -0800 | [diff] [blame] | 812 | |
| 813 | // set timestamp |
| 814 | InetAddress addr = notification.getTargetAddress(); |
| 815 | if (addr != null) { |
| 816 | for (ArpRequest request : arpRequests.get(addr)) { |
| 817 | request.setRequestTime(); |
| 818 | } |
| 819 | } |
Jonathan Hart | 7804bea | 2014-01-07 10:50:52 -0800 | [diff] [blame] | 820 | } |
| 821 | else { |
| 822 | log.warn("Unknown packet out notification received"); |
| 823 | } |
| 824 | } |
Jonathan Hart | c7ca35d | 2013-06-25 20:54:25 +1200 | [diff] [blame] | 825 | } |