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1   package org.metricshub.ipmi.core.sm.states;
2   
3   /*-
4    * ╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲
5    * IPMI Java Client
6    * ჻჻჻჻჻჻
7    * Copyright 2023 Verax Systems, MetricsHub
8    * ჻჻჻჻჻჻
9    * This program is free software: you can redistribute it and/or modify
10   * it under the terms of the GNU Lesser General Public License as
11   * published by the Free Software Foundation, either version 3 of the
12   * License, or (at your option) any later version.
13   *
14   * This program is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17   * GNU General Lesser Public License for more details.
18   *
19   * You should have received a copy of the GNU General Lesser Public
20   * License along with this program.  If not, see
21   * <http://www.gnu.org/licenses/lgpl-3.0.html>.
22   * ╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱
23   */
24  
25  import org.metricshub.ipmi.core.coding.Encoder;
26  import org.metricshub.ipmi.core.coding.commands.session.GetChannelAuthenticationCapabilities;
27  import org.metricshub.ipmi.core.coding.commands.session.OpenSession;
28  import org.metricshub.ipmi.core.coding.protocol.encoder.Protocolv20Encoder;
29  import org.metricshub.ipmi.core.coding.rmcp.RmcpMessage;
30  import org.metricshub.ipmi.core.sm.StateMachine;
31  import org.metricshub.ipmi.core.sm.actions.ErrorAction;
32  import org.metricshub.ipmi.core.sm.events.Authorize;
33  import org.metricshub.ipmi.core.sm.events.StateMachineEvent;
34  
35  /**
36   * {@link GetChannelAuthenticationCapabilities} response was received. At this
37   * point the Session Challenge is going to start. Transits to
38   * {@link OpenSessionWaiting} on {@link Authorize}.
39   */
40  public class Authcap extends State {
41  
42      @Override
43      public void doTransition(StateMachine stateMachine,
44              StateMachineEvent machineEvent) {
45          if (machineEvent instanceof Authorize) {
46              Authorize event = (Authorize) machineEvent;
47  
48              OpenSession openSession = new OpenSession(event.getSessionId(),
49                      event.getPrivilegeLevel(), event.getCipherSuite());
50  
51              try {
52                  stateMachine.setCurrent(new OpenSessionWaiting(event.getSequenceNumber()));
53                  stateMachine.sendMessage(Encoder.encode(
54                          new Protocolv20Encoder(), openSession,
55                          event.getSequenceNumber(), 0, 0));
56              } catch (Exception e) {
57                  stateMachine.setCurrent(this);
58                  stateMachine.doExternalAction(new ErrorAction(e));
59              }
60          } else {
61              stateMachine.doExternalAction(new ErrorAction(
62                      new IllegalArgumentException("Invalid transition: "
63                              + machineEvent.getClass().getSimpleName())));
64          }
65  
66      }
67  
68      @Override
69      public void doAction(StateMachine stateMachine, RmcpMessage message) {
70          // No action needed
71      }
72  
73  }