2 * Copyright (c) 2013 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
8 package org.opendaylight.bgpcep.pcep.topology.provider;
10 import java.net.InetAddress;
11 import java.nio.ByteBuffer;
12 import java.util.Collections;
14 import javax.annotation.concurrent.GuardedBy;
16 import org.opendaylight.controller.sal.binding.api.data.DataModificationTransaction;
17 import org.opendaylight.protocol.pcep.PCEPSession;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.PcinitiateBuilder;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.pcinitiate.message.PcinitiateMessageBuilder;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.initiated.rev131126.pcinitiate.message.pcinitiate.message.RequestsBuilder;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Arguments1;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.OperationalStatus;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PcrptMessage;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PcupdBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PlspId;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.ReportedLsp1;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.ReportedLsp1Builder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.SrpIdNumber;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.StatefulTlv1;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.StatefulTlv1Builder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.SymbolicPathName;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Tlvs1;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.Lsp;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.LspBuilder;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.lsp.TlvsBuilder;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcrpt.message.pcrpt.message.Reports;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.PcupdMessageBuilder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.UpdatesBuilder;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.updates.PathBuilder;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.srp.object.Srp;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.srp.object.SrpBuilder;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.stateful.capability.tlv.Stateful;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.symbolic.path.name.tlv.SymbolicPathNameBuilder;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.open.Tlvs;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.AddLspArgs;
47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.EnsureLspOperationalInput;
48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.OperationResult;
49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.PccSyncState;
50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.RemoveLspArgs;
51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.UpdateLspArgs;
52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.PathComputationClientBuilder;
53 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.path.computation.client.ReportedLsp;
54 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.path.computation.client.ReportedLspBuilder;
55 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.pcep.client.attributes.path.computation.client.StatefulTlvBuilder;
56 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
57 import org.slf4j.Logger;
58 import org.slf4j.LoggerFactory;
60 import com.google.common.base.Charsets;
61 import com.google.common.base.Preconditions;
62 import com.google.common.collect.ImmutableList;
63 import com.google.common.util.concurrent.ListenableFuture;
65 final class Stateful07TopologySessionListener extends AbstractTopologySessionListener<SrpIdNumber, PlspId> {
66 private static final Logger LOG = LoggerFactory.getLogger(Stateful07TopologySessionListener.class);
69 * @param serverSessionManager
71 Stateful07TopologySessionListener(final ServerSessionManager serverSessionManager) {
72 super(serverSessionManager);
76 private long requestId = 1;
79 protected void onSessionUp(final PCEPSession session, final PathComputationClientBuilder pccBuilder) {
80 final InetAddress peerAddress = session.getRemoteAddress();
82 final Tlvs tlvs = session.getRemoteTlvs();
83 if (tlvs != null && tlvs.getAugmentation(Tlvs1.class) != null) {
84 final Stateful stateful = tlvs.getAugmentation(Tlvs1.class).getStateful();
85 if (stateful != null) {
86 pccBuilder.setReportedLsp(Collections.<ReportedLsp> emptyList());
87 pccBuilder.setStateSync(PccSyncState.InitialResync);
88 pccBuilder.setStatefulTlv(new StatefulTlvBuilder().addAugmentation(StatefulTlv1.class,
89 new StatefulTlv1Builder(tlvs.getAugmentation(Tlvs1.class)).build()).build());
91 LOG.debug("Peer {} does not advertise stateful TLV", peerAddress);
94 LOG.debug("Peer {} does not advertise stateful TLV", peerAddress);
99 protected synchronized boolean onMessage(final DataModificationTransaction trans, final Message message) {
100 if (!(message instanceof PcrptMessage)) {
104 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcrpt.message.PcrptMessage rpt = ((PcrptMessage) message).getPcrptMessage();
105 for (final Reports r : rpt.getReports()) {
106 final Lsp lsp = r.getLsp();
108 if (!lsp.isSync() && (lsp.getPlspId() == null || lsp.getPlspId().getValue() == 0)) {
109 stateSynchronizationAchieved(trans);
113 final ReportedLspBuilder rlb = new ReportedLspBuilder();
114 rlb.addAugmentation(ReportedLsp1.class, new ReportedLsp1Builder(r).build());
115 boolean solicited = false;
117 final Srp srp = r.getSrp();
119 final SrpIdNumber id = srp.getOperationId();
120 if (id.getValue() != 0) {
123 switch (lsp.getOperational()) {
127 final PCEPRequest req = removeRequest(id);
129 LOG.debug("Request {} resulted in LSP operational state {}", id, lsp.getOperational());
130 rlb.setMetadata(req.getMetadata());
131 req.setResult(OperationResults.SUCCESS);
133 LOG.warn("Request ID {} not found in outstanding DB", id);
138 // These are transitive states, so we don't have to do anything, as they will be followed
145 final PlspId id = lsp.getPlspId();
146 if (!lsp.isRemove()) {
147 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.lsp.Tlvs tlvs = r.getLsp().getTlvs();
149 if (tlvs != null && tlvs.getSymbolicPathName() != null) {
150 name = Charsets.UTF_8.decode(ByteBuffer.wrap(tlvs.getSymbolicPathName().getPathName().getValue())).toString();
155 updateLsp(trans, id, name, rlb, solicited);
156 LOG.debug("LSP {} updated", lsp);
158 removeLsp(trans, id);
159 LOG.debug("LSP {} removed", lsp);
167 private SrpIdNumber nextRequest() {
168 return new SrpIdNumber(this.requestId++);
172 public synchronized ListenableFuture<OperationResult> addLsp(final AddLspArgs input) {
173 // Make sure there is no such LSP
174 final InstanceIdentifier<ReportedLsp> lsp = lspIdentifier(input.getName()).build();
175 if (this.serverSessionManager.readOperationalData(lsp) != null) {
176 LOG.debug("Node {} already contains lsp {} at {}", input.getNode(), input.getName(), lsp);
177 return OperationResults.UNSENT.future();
181 final RequestsBuilder rb = new RequestsBuilder();
182 rb.fieldsFrom(input.getArguments());
183 rb.setSrp(new SrpBuilder().setOperationId(nextRequest()).setProcessingRule(Boolean.TRUE).build());
184 rb.setLsp(new LspBuilder().setAdministrative(input.getArguments().isAdministrative()).setDelegate(Boolean.TRUE).setPlspId(
185 new PlspId(0L)).setTlvs(
186 new TlvsBuilder().setSymbolicPathName(
187 new SymbolicPathNameBuilder().setPathName(new SymbolicPathName(input.getName().getBytes(Charsets.UTF_8))).build()).build()).build());
189 final PcinitiateMessageBuilder ib = new PcinitiateMessageBuilder(MESSAGE_HEADER);
190 ib.setRequests(ImmutableList.of(rb.build()));
193 return sendMessage(new PcinitiateBuilder().setPcinitiateMessage(ib.build()).build(), rb.getSrp().getOperationId(),
194 input.getArguments().getMetadata());
198 public synchronized ListenableFuture<OperationResult> removeLsp(final RemoveLspArgs input) {
199 // Make sure the LSP exists, we need it for PLSP-ID
200 final InstanceIdentifier<ReportedLsp> lsp = lspIdentifier(input.getName()).build();
201 final ReportedLsp rep = this.serverSessionManager.readOperationalData(lsp);
203 LOG.debug("Node {} does not contain LSP {}", input.getNode(), input.getName());
204 return OperationResults.UNSENT.future();
207 final ReportedLsp1 ra = rep.getAugmentation(ReportedLsp1.class);
208 Preconditions.checkState(ra != null);
210 // Build the request and send it
211 final RequestsBuilder rb = new RequestsBuilder();
212 rb.setSrp(new SrpBuilder().setOperationId(nextRequest()).setProcessingRule(Boolean.TRUE).build());
213 rb.setLsp(new LspBuilder().setRemove(Boolean.TRUE).setPlspId(ra.getLsp().getPlspId()).setDelegate(Boolean.TRUE).build());
215 final PcinitiateMessageBuilder ib = new PcinitiateMessageBuilder(MESSAGE_HEADER);
216 ib.setRequests(ImmutableList.of(rb.build()));
217 return sendMessage(new PcinitiateBuilder().setPcinitiateMessage(ib.build()).build(), rb.getSrp().getOperationId(), null);
221 public synchronized ListenableFuture<OperationResult> updateLsp(final UpdateLspArgs input) {
222 // Make sure the LSP exists
223 final InstanceIdentifier<ReportedLsp> lsp = lspIdentifier(input.getName()).build();
224 final ReportedLsp rep = this.serverSessionManager.readOperationalData(lsp);
226 LOG.debug("Node {} does not contain LSP {}", input.getNode(), input.getName());
227 return OperationResults.UNSENT.future();
230 final ReportedLsp1 ra = rep.getAugmentation(ReportedLsp1.class);
231 Preconditions.checkState(ra != null);
233 // Build the PCUpd request and send it
234 final UpdatesBuilder rb = new UpdatesBuilder();
235 rb.setSrp(new SrpBuilder().setOperationId(nextRequest()).setProcessingRule(Boolean.TRUE).build());
236 rb.setLsp(new LspBuilder().setPlspId(ra.getLsp().getPlspId()).setDelegate(Boolean.TRUE).build());
237 final PathBuilder pb = new PathBuilder();
238 rb.setPath(pb.setEro(input.getArguments().getEro()).build());
239 pb.fieldsFrom(input.getArguments());
240 rb.setPath(pb.build());
241 final PcupdMessageBuilder ub = new PcupdMessageBuilder(MESSAGE_HEADER);
242 ub.setUpdates(ImmutableList.of(rb.build()));
243 return sendMessage(new PcupdBuilder().setPcupdMessage(ub.build()).build(), rb.getSrp().getOperationId(),
244 input.getArguments().getMetadata());
248 public synchronized ListenableFuture<OperationResult> ensureLspOperational(final EnsureLspOperationalInput input) {
249 OperationalStatus op = null;
250 final Arguments1 aa = input.getArguments().getAugmentation(Arguments1.class);
252 op = aa.getOperational();
255 // Make sure the LSP exists
256 final InstanceIdentifier<ReportedLsp> lsp = lspIdentifier(input.getName()).build();
257 LOG.debug("Checking if LSP {} has operational state {}", lsp, op);
258 final ReportedLsp rep = this.serverSessionManager.readOperationalData(lsp);
260 LOG.debug("Node {} does not contain LSP {}", input.getNode(), input.getName());
261 return OperationResults.UNSENT.future();
264 final ReportedLsp1 ra = rep.getAugmentation(ReportedLsp1.class);
266 LOG.warn("Node {} LSP {} does not contain data", input.getNode(), input.getName());
267 return OperationResults.UNSENT.future();
270 if (ra.getLsp().getOperational().equals(op)) {
271 return OperationResults.SUCCESS.future();
273 return OperationResults.UNSENT.future();