pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame^] | 1 | package net.floodlightcontroller.bgproute; |
| 2 | |
| 3 | import java.util.Collection; |
| 4 | import java.util.Map; |
| 5 | import java.util.ArrayList; |
| 6 | import java.util.HashMap; |
| 7 | |
| 8 | import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| 9 | import net.floodlightcontroller.core.module.FloodlightModuleException; |
| 10 | import net.floodlightcontroller.core.module.IFloodlightModule; |
| 11 | import net.floodlightcontroller.core.module.IFloodlightService; |
| 12 | import net.floodlightcontroller.core.IFloodlightProviderService; |
| 13 | |
| 14 | import net.floodlightcontroller.linkdiscovery.ILinkDiscovery.LDUpdate; |
| 15 | import net.floodlightcontroller.restserver.IRestApiService; |
| 16 | import net.floodlightcontroller.topology.ITopologyListener; |
| 17 | import net.floodlightcontroller.topology.ITopologyService; |
| 18 | import net.floodlightcontroller.restclient.RestClient; |
| 19 | |
| 20 | import net.floodlightcontroller.linkdiscovery.ILinkDiscovery; |
| 21 | |
| 22 | import org.slf4j.Logger; |
| 23 | import org.slf4j.LoggerFactory; |
| 24 | |
| 25 | public class BgpRoute implements IFloodlightModule, IBgpRouteService, ITopologyListener { |
| 26 | |
| 27 | protected static Logger log = LoggerFactory.getLogger(BgpRoute.class); |
| 28 | |
| 29 | protected IFloodlightProviderService floodlightProvider; |
| 30 | protected ITopologyService topology; |
| 31 | |
| 32 | protected static Ptree ptree; |
| 33 | |
| 34 | @Override |
| 35 | public Collection<Class<? extends IFloodlightService>> getModuleServices() { |
| 36 | Collection<Class<? extends IFloodlightService>> l = new ArrayList<Class<? extends IFloodlightService>>(); |
| 37 | l.add(IBgpRouteService.class); |
| 38 | return l; |
| 39 | } |
| 40 | |
| 41 | @Override |
| 42 | public Map<Class<? extends IFloodlightService>, IFloodlightService> getServiceImpls() { |
| 43 | Map<Class<? extends IFloodlightService>, IFloodlightService> m = new HashMap<Class<? extends IFloodlightService>, IFloodlightService>(); |
| 44 | m.put(IBgpRouteService.class, this); |
| 45 | return m; |
| 46 | } |
| 47 | |
| 48 | protected IRestApiService restApi; |
| 49 | |
| 50 | @Override |
| 51 | public Collection<Class<? extends IFloodlightService>> getModuleDependencies() { |
| 52 | Collection<Class<? extends IFloodlightService>> l = new ArrayList<Class<? extends IFloodlightService>>(); |
| 53 | l.add(IFloodlightProviderService.class); |
| 54 | l.add(ITopologyService.class); |
| 55 | l.add(IBgpRouteService.class); |
| 56 | return l; |
| 57 | } |
| 58 | |
| 59 | @Override |
| 60 | public void init(FloodlightModuleContext context) |
| 61 | throws FloodlightModuleException { |
| 62 | |
| 63 | ptree = new Ptree(32); |
| 64 | |
| 65 | // Register floodlight provider and REST handler. |
| 66 | floodlightProvider = context.getServiceImpl(IFloodlightProviderService.class); |
| 67 | restApi = context.getServiceImpl(IRestApiService.class); |
| 68 | topology = context.getServiceImpl(ITopologyService.class); |
| 69 | |
| 70 | // Test. |
| 71 | //test(); |
| 72 | } |
| 73 | |
| 74 | public Ptree getPtree() { |
| 75 | return ptree; |
| 76 | } |
| 77 | |
| 78 | // Return nexthop address as byte array. |
| 79 | public Rib lookupRib(byte[] dest) { |
| 80 | if (ptree == null) { |
| 81 | log.debug("lookupRib: ptree null"); |
| 82 | return null; |
| 83 | } |
| 84 | |
| 85 | PtreeNode node = ptree.match(dest, 32); |
| 86 | if (node == null) { |
| 87 | log.debug("lookupRib: ptree node null"); |
| 88 | return null; |
| 89 | } |
| 90 | if (node.rib == null) { |
| 91 | log.debug("lookupRib: ptree rib null"); |
| 92 | return null; |
| 93 | } |
| 94 | ptree.delReference(node); |
| 95 | |
| 96 | return node.rib; |
| 97 | } |
| 98 | |
| 99 | @SuppressWarnings("unused") |
| 100 | private void test() { |
| 101 | System.out.println("Here it is"); |
| 102 | Prefix p = new Prefix("128.0.0.0", 8); |
| 103 | Prefix q = new Prefix("8.0.0.0", 8); |
| 104 | Prefix r = new Prefix("10.0.0.0", 24); |
| 105 | Prefix a = new Prefix("10.0.0.1", 32); |
| 106 | |
| 107 | ptree.acquire(p.getAddress(), p.masklen); |
| 108 | ptree.acquire(q.getAddress(), q.masklen); |
| 109 | ptree.acquire(r.getAddress(), r.masklen); |
| 110 | |
| 111 | System.out.println("Traverse start"); |
| 112 | for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) { |
| 113 | Prefix p_result = new Prefix(node.key, node.keyBits); |
| 114 | } |
| 115 | |
| 116 | PtreeNode n = ptree.match(a.getAddress(), a.masklen); |
| 117 | if (n != null) { |
| 118 | System.out.println("Matched prefix for 10.0.0.1:"); |
| 119 | Prefix x = new Prefix(n.key, n.keyBits); |
| 120 | ptree.delReference(n); |
| 121 | } |
| 122 | |
| 123 | n = ptree.lookup(p.getAddress(), p.masklen); |
| 124 | if (n != null) { |
| 125 | ptree.delReference(n); |
| 126 | ptree.delReference(n); |
| 127 | } |
| 128 | System.out.println("Traverse start"); |
| 129 | for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) { |
| 130 | Prefix p_result = new Prefix(node.key, node.keyBits); |
| 131 | } |
| 132 | |
| 133 | n = ptree.lookup(q.getAddress(), q.masklen); |
| 134 | if (n != null) { |
| 135 | ptree.delReference(n); |
| 136 | ptree.delReference(n); |
| 137 | } |
| 138 | System.out.println("Traverse start"); |
| 139 | for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) { |
| 140 | Prefix p_result = new Prefix(node.key, node.keyBits); |
| 141 | } |
| 142 | |
| 143 | n = ptree.lookup(r.getAddress(), r.masklen); |
| 144 | if (n != null) { |
| 145 | ptree.delReference(n); |
| 146 | ptree.delReference(n); |
| 147 | } |
| 148 | System.out.println("Traverse start"); |
| 149 | for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) { |
| 150 | Prefix p_result = new Prefix(node.key, node.keyBits); |
| 151 | } |
| 152 | |
| 153 | } |
| 154 | |
| 155 | @Override |
| 156 | public void startUp(FloodlightModuleContext context) { |
| 157 | restApi.addRestletRoutable(new BgpRouteWebRoutable()); |
| 158 | topology.addListener((ITopologyListener) this); |
| 159 | } |
| 160 | |
| 161 | @Override |
| 162 | public void topologyChanged() { |
| 163 | boolean change = false; |
| 164 | String changelog = ""; |
| 165 | |
| 166 | for (LDUpdate ldu : topology.getLastLinkUpdates()) { |
| 167 | if (ldu.getOperation().equals(ILinkDiscovery.UpdateOperation.PORT_DOWN)) { |
| 168 | change = true; |
| 169 | changelog = changelog + " down "; |
| 170 | } else if (ldu.getOperation().equals(ILinkDiscovery.UpdateOperation.PORT_UP)) { |
| 171 | change = true; |
| 172 | changelog = changelog + " up "; |
| 173 | } |
| 174 | } |
| 175 | log.info ("received topo change" + changelog); |
| 176 | |
| 177 | if (change) { |
| 178 | RestClient.get ("http://localhost:5000/topo_change"); |
| 179 | } |
| 180 | } |
| 181 | } |