2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow;
11 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.EndpointManager.isExternal;
12 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.addNxRegMatch;
13 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.applyActionIns;
14 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.gotoTableIns;
15 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.instructions;
16 import static org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.nxOutputRegAction;
18 import java.util.ArrayList;
19 import java.util.Collections;
20 import java.util.Comparator;
21 import java.util.HashMap;
22 import java.util.HashSet;
23 import java.util.List;
27 import javax.annotation.concurrent.Immutable;
29 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.OfContext;
30 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.PolicyManager.FlowMap;
31 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.FlowUtils.RegMatch;
32 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.flow.OrdinalFactory.EndpointFwdCtxOrdinals;
33 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sf.Action;
34 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sf.AllowAction;
35 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sf.ClassificationResult;
36 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sf.Classifier;
37 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sf.ParamDerivator;
38 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.sf.SubjectFeatures;
39 import org.opendaylight.groupbasedpolicy.resolver.EgKey;
40 import org.opendaylight.groupbasedpolicy.resolver.EndpointConstraint;
41 import org.opendaylight.groupbasedpolicy.resolver.IndexedTenant;
42 import org.opendaylight.groupbasedpolicy.resolver.Policy;
43 import org.opendaylight.groupbasedpolicy.resolver.PolicyInfo;
44 import org.opendaylight.groupbasedpolicy.resolver.RuleGroup;
45 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpPrefix;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.ActionBuilder;
47 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowId;
48 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
49 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.FlowBuilder;
50 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Match;
51 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.MatchBuilder;
52 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ClassifierDefinitionId;
53 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.ConditionName;
54 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.common.rev140421.TenantId;
55 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.endpoint.rev140421.endpoints.Endpoint;
56 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.ofoverlay.rev140528.OfOverlayContext;
57 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.HasDirection.Direction;
58 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.has.action.refs.ActionRef;
59 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.has.classifier.refs.ClassifierRef;
60 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.subject.feature.instance.ParameterValue;
61 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.EndpointGroup;
62 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.EndpointGroup.IntraGroupPolicy;
63 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.contract.subject.Rule;
64 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.subject.feature.instances.ActionInstance;
65 import org.opendaylight.yang.gen.v1.urn.opendaylight.groupbasedpolicy.policy.rev140421.tenants.tenant.subject.feature.instances.ClassifierInstance;
66 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
67 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
68 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.Layer3Match;
69 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv4MatchBuilder;
70 import org.opendaylight.yang.gen.v1.urn.opendaylight.model.match.types.rev131026.match.layer._3.match.Ipv6MatchBuilder;
71 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg0;
72 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg1;
73 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg2;
74 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg3;
75 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg5;
76 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.match.rev140421.NxmNxReg7;
77 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.overlay.rev150105.TunnelTypeVxlan;
78 import org.slf4j.Logger;
79 import org.slf4j.LoggerFactory;
81 import com.google.common.base.Preconditions;
82 import com.google.common.collect.ComparisonChain;
83 import com.google.common.collect.Ordering;
84 import com.google.common.collect.Table.Cell;
87 * Manage the table that enforces policy on the traffic. Traffic is denied
88 * unless specifically allowed by policy
90 public class PolicyEnforcer extends FlowTable {
92 protected static final Logger LOG = LoggerFactory.getLogger(PolicyEnforcer.class);
94 private static org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction gotoEgressNatInstruction;
95 private static org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction gotoExternalInstruction;
97 public static short TABLE_ID;
99 public PolicyEnforcer(OfContext ctx, short tableId) {
101 this.TABLE_ID = tableId;
102 this.gotoEgressNatInstruction = gotoTableIns(ctx.getPolicyManager().getTABLEID_EGRESS_NAT());
103 this.gotoExternalInstruction = gotoTableIns(ctx.getPolicyManager().getTABLEID_EXTERNAL_MAPPER());
107 public short getTableId() {
112 public void sync(NodeId nodeId, PolicyInfo policyInfo, FlowMap flowMap) throws Exception {
114 flowMap.writeFlow(nodeId, TABLE_ID, dropFlow(Integer.valueOf(1), null, TABLE_ID));
116 NodeConnectorId tunPort = ctx.getSwitchManager().getTunnelPort(nodeId, TunnelTypeVxlan.class);
117 if (tunPort != null) {
118 flowMap.writeFlow(nodeId, TABLE_ID, allowFromTunnel(tunPort));
121 HashSet<PolicyPair> visitedPairs = new HashSet<>();
122 HashSet<PolicyPair> visitedReversePairs = new HashSet<>();
124 // Used for ARP flows
125 Set<Integer> fdIds = new HashSet<>();
127 for (Endpoint srcEp : ctx.getEndpointManager().getEndpointsForNode(nodeId)) {
128 for (EgKey srcEpgKey : ctx.getEndpointManager().getEgKeysForEndpoint(srcEp)) {
129 Set<EgKey> peers = policyInfo.getPeers(srcEpgKey);
130 for (EgKey dstEpgKey : peers) {
131 Set<Endpoint> dstEndpoints = new HashSet<>();
132 dstEndpoints.addAll(ctx.getEndpointManager().getEndpointsForGroup(dstEpgKey));
133 dstEndpoints.addAll(ctx.getEndpointManager().getExtEpsNoLocForGroup(dstEpgKey));
134 for (Endpoint dstEp : dstEndpoints) {
136 EndpointFwdCtxOrdinals srcEpFwdCxtOrds = OrdinalFactory.getEndpointFwdCtxOrdinals(ctx,
138 EndpointFwdCtxOrdinals dstEpFwdCxtOrds = OrdinalFactory.getEndpointFwdCtxOrdinals(ctx,
140 int dcgId = dstEpFwdCxtOrds.getCgId();
141 int depgId = dstEpFwdCxtOrds.getEpgId();
142 int scgId = srcEpFwdCxtOrds.getCgId();
143 int sepgId = srcEpFwdCxtOrds.getEpgId();
145 fdIds.add(srcEpFwdCxtOrds.getFdId());
146 NetworkElements netElements = new NetworkElements(srcEp, dstEp, nodeId, ctx, policyInfo);
148 Policy policy = policyInfo.getPolicy(dstEpgKey, srcEpgKey);
149 for (Cell<EndpointConstraint, EndpointConstraint, List<RuleGroup>> activeRulesByConstraints : getActiveRulesBetweenEps(
150 policy, dstEp, srcEp)) {
151 Set<IpPrefix> sIpPrefixes = Policy.getIpPrefixesFrom(activeRulesByConstraints.getRowKey()
153 Set<IpPrefix> dIpPrefixes = Policy.getIpPrefixesFrom(activeRulesByConstraints.getColumnKey()
155 PolicyPair policyPair = new PolicyPair(depgId, sepgId, dcgId, scgId, dIpPrefixes,
156 sIpPrefixes, netElements.getDstNodeId(), netElements.getSrcNodeId());
157 if (visitedPairs.contains(policyPair)) {
158 LOG.trace("PolicyEnforcer: Already visited PolicyPair {}, endpoints {} {} skipped",
159 policyPair, srcEp.getKey(), dstEp.getKey());
162 LOG.trace("PolicyEnforcer: Visiting PolicyPair {} endpoints {} {}", policyPair,
163 srcEp.getKey(), dstEp.getKey());
164 visitedPairs.add(policyPair);
166 syncPolicy(flowMap, netElements, activeRulesByConstraints.getValue(), policyPair);
170 policy = policyInfo.getPolicy(srcEpgKey, dstEpgKey);
171 for (Cell<EndpointConstraint, EndpointConstraint, List<RuleGroup>> activeRulesByConstraints : getActiveRulesBetweenEps(
172 policy, srcEp, dstEp)) {
173 Set<IpPrefix> sIpPrefixes = Policy.getIpPrefixesFrom(activeRulesByConstraints.getRowKey()
175 Set<IpPrefix> dIpPrefixes = Policy.getIpPrefixesFrom(activeRulesByConstraints.getColumnKey()
177 PolicyPair policyPair = new PolicyPair(sepgId, depgId, scgId, dcgId, sIpPrefixes,
178 dIpPrefixes, netElements.getSrcNodeId(), netElements.getDstNodeId());
179 if (visitedReversePairs.contains(policyPair)) {
181 "PolicyEnforcer: Reverse: Already visited PolicyPair {}, endpoints {} {} skipped",
182 policyPair, srcEp.getKey(), dstEp.getKey());
185 LOG.trace("PolicyEnforcer: Reverse: Visiting: PolicyPair {} via endpoints {} {}",
186 policyPair, srcEp.getKey(), dstEp.getKey());
187 visitedReversePairs.add(policyPair);
190 syncPolicy(flowMap, netElements, activeRulesByConstraints.getValue(), policyPair);
198 for (Endpoint srcEp : ctx.getEndpointManager().getEndpointsForNode(nodeId)) {
199 for (EgKey srcEpgKey : ctx.getEndpointManager().getEgKeysForEndpoint(srcEp)) {
201 IndexedTenant tenant = ctx.getPolicyResolver().getTenant(srcEpgKey.getTenantId());
202 if (tenant != null) {
203 EndpointGroup group = tenant.getEndpointGroup(srcEpgKey.getEgId());
204 IntraGroupPolicy igp = group.getIntraGroupPolicy();
206 if (igp == null || igp.equals(IntraGroupPolicy.Allow)) {
207 for (Endpoint dstEp : ctx.getEndpointManager().getEndpointsForGroup(srcEpgKey)) {
208 EndpointFwdCtxOrdinals srcEpFwdCxtOrds =
209 OrdinalFactory.getEndpointFwdCtxOrdinals(ctx, policyInfo, srcEp);
210 EndpointFwdCtxOrdinals dstEpFwdCxtOrds =
211 OrdinalFactory.getEndpointFwdCtxOrdinals(ctx, policyInfo, dstEp);
212 int depgId = dstEpFwdCxtOrds.getEpgId();
213 int sepgId = srcEpFwdCxtOrds.getEpgId();
214 flowMap.writeFlow(nodeId, TABLE_ID, allowSameEpg(sepgId, depgId));
215 flowMap.writeFlow(nodeId, TABLE_ID, allowSameEpg(depgId, sepgId));
222 // Write ARP flows per flood domain.
223 for (Integer fdId : fdIds) {
224 flowMap.writeFlow(nodeId, TABLE_ID, createArpFlow(fdId));
228 private Flow createArpFlow(Integer fdId) {
230 Long etherType = FlowUtils.ARP;
231 // L2 Classifier so 20,000 for now
232 Integer priority = 20000;
234 MatchBuilder mb = new MatchBuilder().setEthernetMatch(FlowUtils.ethernetMatch(null, null, etherType));
236 addNxRegMatch(mb, RegMatch.of(NxmNxReg5.class, Long.valueOf(fdId)));
238 Match match = mb.build();
239 FlowId flowid = FlowIdUtils.newFlowId(TABLE_ID, "arp", match);
240 Flow flow = base().setPriority(priority)
243 .setInstructions(instructions(applyActionIns(nxOutputRegAction(NxmNxReg7.class))))
248 private Flow allowSameEpg(int sepgId, int depgId) {
250 MatchBuilder mb = new MatchBuilder();
251 addNxRegMatch(mb, RegMatch.of(NxmNxReg0.class, Long.valueOf(sepgId)),
252 RegMatch.of(NxmNxReg2.class, Long.valueOf(depgId)));
253 Match match = mb.build();
254 FlowId flowId = FlowIdUtils.newFlowId(TABLE_ID, "intraallow", match);
255 FlowBuilder flow = base().setId(flowId)
258 .setInstructions(instructions(applyActionIns(nxOutputRegAction(NxmNxReg7.class))));
262 private Flow allowFromTunnel(NodeConnectorId tunPort) {
264 MatchBuilder mb = new MatchBuilder().setInPort(tunPort);
265 addNxRegMatch(mb, RegMatch.of(NxmNxReg1.class, Long.valueOf(0xffffff)));
266 Match match = mb.build();
267 FlowId flowId = FlowIdUtils.newFlowId(TABLE_ID, "tunnelallow", match);
268 FlowBuilder flow = base().setId(flowId)
271 .setInstructions(instructions(applyActionIns(nxOutputRegAction(NxmNxReg7.class))));
276 private void syncPolicy(FlowMap flowMap, NetworkElements netElements, List<RuleGroup> rgs, PolicyPair policyPair) {
277 int priority = 65000;
278 for (RuleGroup rg : rgs) {
279 TenantId tenantId = rg.getContractTenant().getId();
280 IndexedTenant tenant = ctx.getPolicyResolver().getTenant(tenantId);
281 for (Rule r : rg.getRules()) {
282 syncDirection(flowMap, netElements, tenant, policyPair, r, Direction.In, priority);
283 syncDirection(flowMap, netElements, tenant, policyPair, r, Direction.Out, priority);
291 * Private internal class for ordering Actions in Rules. The order is
292 * determined first by the value of the order parameter, with the lower
293 * order actions being applied first; for Actions with either the same order
294 * or no order, ordering is lexicographical by name.
296 private static class ActionRefComparator implements Comparator<ActionRef> {
298 public static final ActionRefComparator INSTANCE = new ActionRefComparator();
301 public int compare(ActionRef arg0, ActionRef arg1) {
302 return ComparisonChain.start()
303 .compare(arg0.getOrder(), arg1.getOrder(), Ordering.natural().nullsLast())
304 .compare(arg0.getName().getValue(), arg1.getName().getValue(), Ordering.natural().nullsLast())
310 private void syncDirection(FlowMap flowMap, NetworkElements netElements, IndexedTenant contractTenant,
311 PolicyPair policyPair, Rule rule, Direction direction, int priority) {
314 Map<String, ParameterValue> paramsFromClassifier = new HashMap<>();
315 Set<ClassifierDefinitionId> classifiers = new HashSet<>();
316 for (ClassifierRef cr : rule.getClassifierRef()) {
317 if (cr.getDirection() != null && !cr.getDirection().equals(Direction.Bidirectional)
318 && !cr.getDirection().equals(direction)) {
322 // XXX - TODO - implement connection tracking (requires openflow
323 // extension and data plane support - in 2.4. Will need to handle
324 // case where we are working with mix of nodes.
326 ClassifierInstance ci = contractTenant.getClassifier(cr.getInstanceName());
328 // XXX TODO fail the match and raise an exception
329 LOG.warn("Classifier instance {} not found", cr.getInstanceName().getValue());
332 Classifier cfier = SubjectFeatures.getClassifier(ci.getClassifierDefinitionId());
334 // XXX TODO fail the match and raise an exception
335 LOG.warn("Classifier definition {} not found", ci.getClassifierDefinitionId().getValue());
338 classifiers.add(new ClassifierDefinitionId(ci.getClassifierDefinitionId()));
339 for (ParameterValue v : ci.getParameterValue()) {
340 if (paramsFromClassifier.get(v.getName().getValue()) == null) {
341 if (v.getIntValue() != null || v.getStringValue() != null || v.getRangeValue() != null) {
342 paramsFromClassifier.put(v.getName().getValue(), v);
345 if (!paramsFromClassifier.get(v.getName().getValue()).equals(v)) {
346 throw new IllegalArgumentException("Classification error in rule: " + rule.getName()
347 + ".\nCause: " + "Classification conflict detected at parameter " + v.getName());
352 if (classifiers.isEmpty()) {
355 List<Map<String, ParameterValue>> derivedParamsByName = ParamDerivator.ETHER_TYPE_DERIVATOR.deriveParameter(paramsFromClassifier);
356 List<MatchBuilder> flowMatchBuilders = new ArrayList<>();
357 for (Map<String, ParameterValue> params : derivedParamsByName) {
358 List<MatchBuilder> matchBuildersToResolve = new ArrayList<>();
359 if (policyPair.consumerEicIpPrefixes.isEmpty() && policyPair.providerEicIpPrefixes.isEmpty()) {
360 matchBuildersToResolve.add(createBaseMatch(direction, policyPair, null, null));
361 } else if (!policyPair.consumerEicIpPrefixes.isEmpty() && policyPair.providerEicIpPrefixes.isEmpty()) {
362 for (IpPrefix sIpPrefix : policyPair.consumerEicIpPrefixes) {
363 matchBuildersToResolve.add(createBaseMatch(direction, policyPair, sIpPrefix, null));
365 } else if (policyPair.consumerEicIpPrefixes.isEmpty() && !policyPair.providerEicIpPrefixes.isEmpty()) {
366 for (IpPrefix dIpPrefix : policyPair.consumerEicIpPrefixes) {
367 matchBuildersToResolve.add(createBaseMatch(direction, policyPair, null, dIpPrefix));
370 for (IpPrefix sIpPrefix : policyPair.consumerEicIpPrefixes) {
371 for (IpPrefix dIpPrefix : policyPair.consumerEicIpPrefixes) {
372 matchBuildersToResolve.add(createBaseMatch(direction, policyPair, sIpPrefix, dIpPrefix));
376 for (ClassifierDefinitionId clDefId : classifiers) {
377 Classifier classifier = SubjectFeatures.getClassifier(clDefId);
378 ClassificationResult result = classifier.updateMatch(matchBuildersToResolve, params);
379 if (!result.isSuccessfull()) {
380 // TODO consider different handling.
381 throw new IllegalArgumentException("Classification conflict detected in rule: " + rule.getName()
382 + ".\nCause: " + result.getErrorMessage());
384 matchBuildersToResolve = new ArrayList<>(result.getMatchBuilders());
386 flowMatchBuilders.addAll(matchBuildersToResolve);
390 * Create the ordered action list. The implicit action is "allow", and
391 * is therefore always in the list
394 List<ActionBuilder> actionBuilderList = new ArrayList<ActionBuilder>();
395 if (rule.getActionRef() != null) {
397 * Pre-sort by references using order, then name
399 List<ActionRef> actionRefList = new ArrayList<ActionRef>(rule.getActionRef());
400 Collections.sort(actionRefList, ActionRefComparator.INSTANCE);
402 for (ActionRef actionRule : actionRefList) {
403 ActionInstance actionInstance = contractTenant.getAction(actionRule.getName());
404 if (actionInstance == null) {
405 // XXX TODO fail the match and raise an exception
406 LOG.warn("Action instance {} not found", actionRule.getName().getValue());
409 Action action = SubjectFeatures.getAction(actionInstance.getActionDefinitionId());
410 if (action == null) {
411 // XXX TODO fail the match and raise an exception
412 LOG.warn("Action definition {} not found", actionInstance.getActionDefinitionId().getValue());
416 Map<String, Object> params = new HashMap<>();
417 if (actionInstance.getParameterValue() != null) {
418 for (ParameterValue v : actionInstance.getParameterValue()) {
419 if (v.getName() == null)
421 if (v.getIntValue() != null) {
422 params.put(v.getName().getValue(), v.getIntValue());
423 } else if (v.getStringValue() != null) {
424 params.put(v.getName().getValue(), v.getStringValue());
429 * Convert the GBP Action to one or more OpenFlow Actions
431 if (!(actionRefList.indexOf(actionRule) == (actionRefList.size() - 1) && action.equals(SubjectFeatures.getAction(AllowAction.DEFINITION.getId())))) {
432 actionBuilderList = action.updateAction(actionBuilderList, params, actionRule.getOrder(), netElements, policyPair, flowMap, ctx, direction);
437 FlowBuilder flow = base().setPriority(Integer.valueOf(priority));
438 for (MatchBuilder mb : flowMatchBuilders) {
439 Match match = mb.build();
440 FlowId flowId = FlowIdUtils.newFlowId(TABLE_ID, "cg", match);
441 flow.setMatch(match).setId(flowId).setPriority(Integer.valueOf(priority));
444 * If destination is External, the last Action ALLOW must be changed to goto
445 * NAT/External table.
446 * If actionBuilderList is empty (we removed the last Allow) then go straight to
447 * ExternalMapper table.
450 if (isExternal(netElements.getDstEp())) {
451 flow.setInstructions(instructions(getGotoEgressNatInstruction()));
452 } else if (actionBuilderList.isEmpty()) {
453 flow.setInstructions(instructions(getGotoExternalInstruction()));
455 flow.setInstructions(instructions(applyActionIns(actionBuilderList), getGotoExternalInstruction()));
457 flowMap.writeFlow(netElements.getLocalNodeId(), TABLE_ID, flow.build());
461 private MatchBuilder createBaseMatch(Direction direction, PolicyPair policyPair, IpPrefix sIpPrefix,
462 IpPrefix dIpPrefix) {
463 MatchBuilder baseMatch = new MatchBuilder();
464 if (direction.equals(Direction.In)) {
465 addNxRegMatch(baseMatch, RegMatch.of(NxmNxReg0.class, Long.valueOf(policyPair.consumerEpgId)),
466 RegMatch.of(NxmNxReg1.class, Long.valueOf(policyPair.consumerCondGrpId)),
467 RegMatch.of(NxmNxReg2.class, Long.valueOf(policyPair.providerEpgId)),
468 RegMatch.of(NxmNxReg3.class, Long.valueOf(policyPair.providerCondGrpId)));
469 if (sIpPrefix != null) {
470 baseMatch.setLayer3Match(createLayer3Match(sIpPrefix, true));
472 if (dIpPrefix != null) {
473 baseMatch.setLayer3Match(createLayer3Match(dIpPrefix, true));
476 addNxRegMatch(baseMatch, RegMatch.of(NxmNxReg0.class, Long.valueOf(policyPair.providerEpgId)),
477 RegMatch.of(NxmNxReg1.class, Long.valueOf(policyPair.providerCondGrpId)),
478 RegMatch.of(NxmNxReg2.class, Long.valueOf(policyPair.consumerEpgId)),
479 RegMatch.of(NxmNxReg3.class, Long.valueOf(policyPair.consumerCondGrpId)));
480 if (sIpPrefix != null) {
481 baseMatch.setLayer3Match(createLayer3Match(sIpPrefix, false));
483 if (dIpPrefix != null) {
484 baseMatch.setLayer3Match(createLayer3Match(dIpPrefix, false));
490 private Layer3Match createLayer3Match(IpPrefix ipPrefix, boolean isSrc) {
491 if (ipPrefix.getIpv4Prefix() != null) {
493 return new Ipv4MatchBuilder().setIpv4Source(ipPrefix.getIpv4Prefix()).build();
495 return new Ipv4MatchBuilder().setIpv4Destination(ipPrefix.getIpv4Prefix()).build();
499 return new Ipv6MatchBuilder().setIpv6Source(ipPrefix.getIpv6Prefix()).build();
501 return new Ipv6MatchBuilder().setIpv6Destination(ipPrefix.getIpv6Prefix()).build();
506 // TODO: move to a common utils for all renderers
507 public List<Cell<EndpointConstraint, EndpointConstraint, List<RuleGroup>>> getActiveRulesBetweenEps(Policy policy,
508 Endpoint consEp, Endpoint provEp) {
509 List<Cell<EndpointConstraint, EndpointConstraint, List<RuleGroup>>> rulesWithEpConstraints = new ArrayList<>();
510 if (policy.getRuleMap() != null) {
511 for (Cell<EndpointConstraint, EndpointConstraint, List<RuleGroup>> cell : policy.getRuleMap().cellSet()) {
512 EndpointConstraint consEpConstraint = cell.getRowKey();
513 EndpointConstraint provEpConstraint = cell.getColumnKey();
514 if (epMatchesConstraint(consEp, consEpConstraint) && epMatchesConstraint(provEp, provEpConstraint)) {
515 rulesWithEpConstraints.add(cell);
519 return rulesWithEpConstraints;
522 private boolean epMatchesConstraint(Endpoint ep, EndpointConstraint constraint) {
523 List<ConditionName> epConditions = Collections.emptyList();
524 if (ep.getCondition() != null) {
525 epConditions = ep.getCondition();
527 return constraint.getConditionSet().matches(epConditions);
530 private static org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction getGotoEgressNatInstruction() {
531 return gotoEgressNatInstruction;
534 private static org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.Instruction getGotoExternalInstruction() {
535 return gotoExternalInstruction;
539 public static class PolicyPair {
541 private final int consumerEpgId;
542 private final int providerEpgId;
543 private final int consumerCondGrpId;
544 private final int providerCondGrpId;
545 private final Set<IpPrefix> consumerEicIpPrefixes;
546 private final Set<IpPrefix> providerEicIpPrefixes;
547 private NodeId consumerEpNodeId;
548 private NodeId providerEpNodeId;
550 public int getConsumerEpgId() {
551 return consumerEpgId;
554 public int getProviderEpgId() {
555 return providerEpgId;
558 public NodeId getConsumerEpNodeId() {
559 return consumerEpNodeId;
562 public NodeId getProviderEpNodeId() {
563 return providerEpNodeId;
566 public PolicyPair(int consumerEpgId, int providerEpgId, int consumerCondGrpId, int providerCondGrpId,
567 Set<IpPrefix> consumerEicIpPrefixes, Set<IpPrefix> providerEicIpPrefixes, NodeId consumerEpNodeId, NodeId providerEpNodeId) {
569 this.consumerEpgId = consumerEpgId;
570 this.providerEpgId = providerEpgId;
571 this.consumerCondGrpId = consumerCondGrpId;
572 this.providerCondGrpId = providerCondGrpId;
573 this.consumerEicIpPrefixes = consumerEicIpPrefixes;
574 this.providerEicIpPrefixes = providerEicIpPrefixes;
575 this.consumerEpNodeId = consumerEpNodeId;
576 this.providerEpNodeId = providerEpNodeId;
580 public int hashCode() {
581 final int prime = 31;
583 result = prime * result + ((providerEicIpPrefixes == null) ? 0 : providerEicIpPrefixes.hashCode());
584 result = prime * result + providerCondGrpId;
585 result = prime * result + providerEpgId;
586 result = prime * result + ((consumerEicIpPrefixes == null) ? 0 : consumerEicIpPrefixes.hashCode());
587 result = prime * result + consumerCondGrpId;
588 result = prime * result + consumerEpgId;
589 result = prime * result + ((consumerEpNodeId == null) ? 0 : consumerEpNodeId.hashCode());
590 result = prime * result + ((providerEpNodeId == null) ? 0 : providerEpNodeId.hashCode());
596 public boolean equals(Object obj) {
601 if (getClass() != obj.getClass())
603 PolicyPair other = (PolicyPair) obj;
604 if (providerEicIpPrefixes == null) {
605 if (other.providerEicIpPrefixes != null) {
608 } else if (!providerEicIpPrefixes.equals(other.providerEicIpPrefixes)) {
611 if (consumerEicIpPrefixes == null) {
612 if (other.consumerEicIpPrefixes != null) {
615 } else if (!consumerEicIpPrefixes.equals(other.consumerEicIpPrefixes)) {
618 if (consumerEpNodeId == null) {
619 if (other.consumerEpNodeId != null) {
622 } else if (!consumerEpNodeId.getValue().equals(other.consumerEpNodeId.getValue())) {
625 if (providerEpNodeId == null) {
626 if (other.providerEpNodeId != null) {
629 } else if (!providerEpNodeId.getValue().equals(other.providerEpNodeId.getValue())) {
632 if (providerCondGrpId != other.providerCondGrpId)
634 if (providerEpgId != other.providerEpgId)
636 if (consumerCondGrpId != other.consumerCondGrpId)
638 if (consumerEpgId != other.consumerEpgId)
645 public String toString() {
646 return new StringBuilder().append("consumerEPG: ")
647 .append(consumerEpgId)
648 .append("consumerCG: ")
649 .append(consumerCondGrpId)
650 .append("providerEPG: ")
651 .append(providerEpgId)
652 .append("providerCG: ")
653 .append(providerCondGrpId)
654 .append("consumerEpNodeId: ")
655 .append(consumerEpNodeId)
656 .append("providerEpNodeId: ")
657 .append(providerEpNodeId)
658 .append("consumerEicIpPrefixes: ")
659 .append(consumerEicIpPrefixes)
660 .append("providerEicIpPrefixes: ")
661 .append(providerEicIpPrefixes)
666 public class NetworkElements {
668 private Endpoint srcEp;
669 private Endpoint dstEp;
670 private NodeId srcNodeId;
671 private NodeId dstNodeId;
672 private NodeId localNodeId;
673 private EndpointFwdCtxOrdinals srcEpOrds;
674 private EndpointFwdCtxOrdinals dstEpOrds;
676 public NetworkElements(Endpoint srcEp, Endpoint dstEp, NodeId nodeId, OfContext ctx, PolicyInfo policyInfo)
678 Preconditions.checkArgument(srcEp.getAugmentation(OfOverlayContext.class) != null);
679 Preconditions.checkArgument(dstEp.getAugmentation(OfOverlayContext.class) != null);
683 this.localNodeId = nodeId;
684 this.srcEpOrds = OrdinalFactory.getEndpointFwdCtxOrdinals(ctx, policyInfo, srcEp);
685 this.dstEpOrds = OrdinalFactory.getEndpointFwdCtxOrdinals(ctx, policyInfo, dstEp);
686 this.dstNodeId = dstEp.getAugmentation(OfOverlayContext.class).getNodeId();
687 this.srcNodeId = srcEp.getAugmentation(OfOverlayContext.class).getNodeId();
691 public Endpoint getSrcEp() {
696 Endpoint getDstEp() {
701 public NodeId getSrcNodeId() {
706 public NodeId getDstNodeId() {
711 public NodeId getLocalNodeId() {
716 public EndpointFwdCtxOrdinals getSrcEpOrds() {
721 public EndpointFwdCtxOrdinals getDstEpOrds() {