pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 1 | package net.floodlightcontroller.bgproute; |
| 2 | |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 3 | import java.net.UnknownHostException; |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 4 | import java.util.ArrayList; |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 5 | import java.util.Collection; |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 6 | import java.util.HashMap; |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 7 | import java.util.Map; |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 8 | |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 9 | import net.floodlightcontroller.core.IFloodlightProviderService; |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 10 | import net.floodlightcontroller.core.module.FloodlightModuleContext; |
| 11 | import net.floodlightcontroller.core.module.FloodlightModuleException; |
| 12 | import net.floodlightcontroller.core.module.IFloodlightModule; |
| 13 | import net.floodlightcontroller.core.module.IFloodlightService; |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 14 | import net.floodlightcontroller.linkdiscovery.ILinkDiscovery; |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 15 | import net.floodlightcontroller.linkdiscovery.ILinkDiscovery.LDUpdate; |
| 16 | import net.floodlightcontroller.restserver.IRestApiService; |
| 17 | import net.floodlightcontroller.topology.ITopologyListener; |
| 18 | import net.floodlightcontroller.topology.ITopologyService; |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 19 | import net.sf.json.JSONArray; |
| 20 | import net.sf.json.JSONObject; |
| 21 | import net.sf.json.JSONSerializer; |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 22 | |
| 23 | import org.slf4j.Logger; |
| 24 | import org.slf4j.LoggerFactory; |
| 25 | |
| 26 | public class BgpRoute implements IFloodlightModule, IBgpRouteService, ITopologyListener { |
| 27 | |
| 28 | protected static Logger log = LoggerFactory.getLogger(BgpRoute.class); |
| 29 | |
| 30 | protected IFloodlightProviderService floodlightProvider; |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 31 | protected IRestApiService restApi; |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 32 | protected ITopologyService topology; |
| 33 | |
| 34 | protected static Ptree ptree; |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 35 | protected String bgpdRestIp; |
| 36 | protected String routerId; |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 37 | |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 38 | |
| 39 | @Override |
| 40 | public Collection<Class<? extends IFloodlightService>> getModuleServices() { |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 41 | Collection<Class<? extends IFloodlightService>> l |
| 42 | = new ArrayList<Class<? extends IFloodlightService>>(); |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 43 | l.add(IBgpRouteService.class); |
| 44 | return l; |
| 45 | } |
| 46 | |
| 47 | @Override |
| 48 | public Map<Class<? extends IFloodlightService>, IFloodlightService> getServiceImpls() { |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 49 | Map<Class<? extends IFloodlightService>, IFloodlightService> m |
| 50 | = new HashMap<Class<? extends IFloodlightService>, IFloodlightService>(); |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 51 | m.put(IBgpRouteService.class, this); |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 52 | return m; |
| 53 | } |
| 54 | |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 55 | @Override |
| 56 | public Collection<Class<? extends IFloodlightService>> getModuleDependencies() { |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 57 | Collection<Class<? extends IFloodlightService>> l |
| 58 | = new ArrayList<Class<? extends IFloodlightService>>(); |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 59 | l.add(IFloodlightProviderService.class); |
| 60 | l.add(ITopologyService.class); |
| 61 | l.add(IBgpRouteService.class); |
| 62 | return l; |
| 63 | } |
| 64 | |
| 65 | @Override |
| 66 | public void init(FloodlightModuleContext context) |
| 67 | throws FloodlightModuleException { |
| 68 | |
| 69 | ptree = new Ptree(32); |
| 70 | |
| 71 | // Register floodlight provider and REST handler. |
| 72 | floodlightProvider = context.getServiceImpl(IFloodlightProviderService.class); |
| 73 | restApi = context.getServiceImpl(IRestApiService.class); |
| 74 | topology = context.getServiceImpl(ITopologyService.class); |
| 75 | |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 76 | //Read in config values |
| 77 | bgpdRestIp = context.getConfigParams(this).get("BgpdRestIp"); |
| 78 | if (bgpdRestIp == null){ |
| 79 | log.error("BgpdRestIp property not found in config file"); |
| 80 | System.exit(1); |
| 81 | } |
| 82 | else { |
| 83 | log.info("BgpdRestIp set to {}", bgpdRestIp); |
| 84 | } |
| 85 | |
| 86 | routerId = context.getConfigParams(this).get("RouterId"); |
| 87 | if (routerId == null){ |
| 88 | log.error("RouterId property not found in config file"); |
| 89 | System.exit(1); |
| 90 | } |
| 91 | else { |
| 92 | log.info("RouterId set to {}", routerId); |
| 93 | } |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 94 | // Test. |
| 95 | //test(); |
| 96 | } |
| 97 | |
| 98 | public Ptree getPtree() { |
| 99 | return ptree; |
| 100 | } |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 101 | |
| 102 | public void clearPtree() { |
| 103 | //ptree = null; |
| 104 | ptree = new Ptree(32); |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 105 | } |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 106 | |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 107 | public String getBGPdRestIp() { |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 108 | return bgpdRestIp; |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 109 | } |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 110 | |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 111 | public String getRouterId() { |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 112 | return routerId; |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 113 | } |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 114 | |
| 115 | // Return nexthop address as byte array. |
| 116 | public Rib lookupRib(byte[] dest) { |
| 117 | if (ptree == null) { |
| 118 | log.debug("lookupRib: ptree null"); |
| 119 | return null; |
| 120 | } |
| 121 | |
| 122 | PtreeNode node = ptree.match(dest, 32); |
| 123 | if (node == null) { |
| 124 | log.debug("lookupRib: ptree node null"); |
| 125 | return null; |
| 126 | } |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 127 | |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 128 | if (node.rib == null) { |
| 129 | log.debug("lookupRib: ptree rib null"); |
| 130 | return null; |
| 131 | } |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 132 | |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 133 | ptree.delReference(node); |
| 134 | |
| 135 | return node.rib; |
| 136 | } |
| 137 | |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 138 | //TODO looks like this should be a unit test |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 139 | @SuppressWarnings("unused") |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 140 | private void test() throws UnknownHostException { |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 141 | System.out.println("Here it is"); |
| 142 | Prefix p = new Prefix("128.0.0.0", 8); |
| 143 | Prefix q = new Prefix("8.0.0.0", 8); |
| 144 | Prefix r = new Prefix("10.0.0.0", 24); |
| 145 | Prefix a = new Prefix("10.0.0.1", 32); |
| 146 | |
| 147 | ptree.acquire(p.getAddress(), p.masklen); |
| 148 | ptree.acquire(q.getAddress(), q.masklen); |
| 149 | ptree.acquire(r.getAddress(), r.masklen); |
| 150 | |
| 151 | System.out.println("Traverse start"); |
| 152 | for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) { |
| 153 | Prefix p_result = new Prefix(node.key, node.keyBits); |
| 154 | } |
| 155 | |
| 156 | PtreeNode n = ptree.match(a.getAddress(), a.masklen); |
| 157 | if (n != null) { |
| 158 | System.out.println("Matched prefix for 10.0.0.1:"); |
| 159 | Prefix x = new Prefix(n.key, n.keyBits); |
| 160 | ptree.delReference(n); |
| 161 | } |
| 162 | |
| 163 | n = ptree.lookup(p.getAddress(), p.masklen); |
| 164 | if (n != null) { |
| 165 | ptree.delReference(n); |
| 166 | ptree.delReference(n); |
| 167 | } |
| 168 | System.out.println("Traverse start"); |
| 169 | for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) { |
| 170 | Prefix p_result = new Prefix(node.key, node.keyBits); |
| 171 | } |
| 172 | |
| 173 | n = ptree.lookup(q.getAddress(), q.masklen); |
| 174 | if (n != null) { |
| 175 | ptree.delReference(n); |
| 176 | ptree.delReference(n); |
| 177 | } |
| 178 | System.out.println("Traverse start"); |
| 179 | for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) { |
| 180 | Prefix p_result = new Prefix(node.key, node.keyBits); |
| 181 | } |
| 182 | |
| 183 | n = ptree.lookup(r.getAddress(), r.masklen); |
| 184 | if (n != null) { |
| 185 | ptree.delReference(n); |
| 186 | ptree.delReference(n); |
| 187 | } |
| 188 | System.out.println("Traverse start"); |
| 189 | for (PtreeNode node = ptree.begin(); node != null; node = ptree.next(node)) { |
| 190 | Prefix p_result = new Prefix(node.key, node.keyBits); |
| 191 | } |
| 192 | |
| 193 | } |
| 194 | |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 195 | private void retrieveRib(){ |
| 196 | String url = "http://" + bgpdRestIp + "/wm/bgp/" + routerId; |
| 197 | String response = RestClient.get(url); |
| 198 | |
| 199 | if (response.equals("")){ |
| 200 | return; |
| 201 | } |
| 202 | |
| 203 | response = response.replaceAll("\"", "'"); |
| 204 | JSONObject jsonObj = (JSONObject) JSONSerializer.toJSON(response); |
| 205 | JSONArray rib_json_array = jsonObj.getJSONArray("rib"); |
| 206 | String router_id = jsonObj.getString("router-id"); |
| 207 | |
| 208 | int size = rib_json_array.size(); |
| 209 | |
| 210 | log.info("Retrived RIB of {} entries from BGPd", size); |
| 211 | |
| 212 | for (int j = 0; j < size; j++) { |
| 213 | JSONObject second_json_object = rib_json_array.getJSONObject(j); |
| 214 | String prefix = second_json_object.getString("prefix"); |
| 215 | String nexthop = second_json_object.getString("nexthop"); |
| 216 | |
| 217 | //insert each rib entry into the local rib; |
| 218 | String[] substring = prefix.split("/"); |
| 219 | String prefix1 = substring[0]; |
| 220 | String mask1 = substring[1]; |
| 221 | |
| 222 | Prefix p; |
| 223 | try { |
| 224 | p = new Prefix(prefix1, Integer.valueOf(mask1)); |
| 225 | } catch (NumberFormatException e) { |
| 226 | log.warn("Wrong mask format in RIB JSON: {}", mask1); |
| 227 | continue; |
| 228 | } catch (UnknownHostException e1) { |
| 229 | log.warn("Wrong prefix format in RIB JSON: {}", prefix1); |
| 230 | continue; |
| 231 | } |
| 232 | |
| 233 | PtreeNode node = ptree.acquire(p.getAddress(), p.masklen); |
| 234 | Rib rib = new Rib(router_id, nexthop, p.masklen); |
| 235 | |
| 236 | if (node.rib != null) { |
| 237 | node.rib = null; |
| 238 | ptree.delReference(node); |
| 239 | } |
| 240 | |
| 241 | node.rib = rib; |
| 242 | } |
| 243 | } |
| 244 | |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 245 | @Override |
| 246 | public void startUp(FloodlightModuleContext context) { |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 247 | restApi.addRestletRoutable(new BgpRouteWebRoutable()); |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 248 | topology.addListener(this); |
pingping-lin | e2a09ca | 2013-03-23 09:33:58 +0800 | [diff] [blame] | 249 | |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 250 | //Retrieve the RIB from BGPd during startup |
| 251 | retrieveRib(); |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | @Override |
| 255 | public void topologyChanged() { |
| 256 | boolean change = false; |
| 257 | String changelog = ""; |
| 258 | |
| 259 | for (LDUpdate ldu : topology.getLastLinkUpdates()) { |
| 260 | if (ldu.getOperation().equals(ILinkDiscovery.UpdateOperation.PORT_DOWN)) { |
| 261 | change = true; |
| 262 | changelog = changelog + " down "; |
| 263 | } else if (ldu.getOperation().equals(ILinkDiscovery.UpdateOperation.PORT_UP)) { |
| 264 | change = true; |
| 265 | changelog = changelog + " up "; |
| 266 | } |
| 267 | } |
| 268 | log.info ("received topo change" + changelog); |
| 269 | |
| 270 | if (change) { |
Jonathan Hart | 61ba937 | 2013-05-19 20:10:29 -0700 | [diff] [blame^] | 271 | //RestClient.get ("http://localhost:5000/topo_change"); |
pingping-lin | a2cbfad | 2013-03-07 08:39:21 +0800 | [diff] [blame] | 272 | } |
| 273 | } |
| 274 | } |