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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.GetChannelCipherSuites;
27  import org.metricshub.ipmi.core.coding.protocol.encoder.Protocolv20Encoder;
28  import org.metricshub.ipmi.core.coding.rmcp.RmcpMessage;
29  import org.metricshub.ipmi.core.common.TypeConverter;
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.Default;
33  import org.metricshub.ipmi.core.sm.events.GetChannelCipherSuitesPending;
34  import org.metricshub.ipmi.core.sm.events.StateMachineEvent;
35  
36  /**
37   * The initial state. Transits to {@link CiphersWaiting} on
38   * {@link GetChannelCipherSuitesPending}.
39   */
40  public class Uninitialized extends State {
41  
42      @Override
43      public void doTransition(StateMachine stateMachine,
44              StateMachineEvent machineEvent) {
45          if (machineEvent instanceof GetChannelCipherSuitesPending) {
46              Default event = (GetChannelCipherSuitesPending) machineEvent;
47              GetChannelCipherSuites cipherSuites = new GetChannelCipherSuites(
48                      TypeConverter.intToByte(0xE), (byte) 0);
49              try {
50                  stateMachine.setCurrent(new CiphersWaiting(0, event
51                          .getSequenceNumber()));
52  
53                  stateMachine.sendMessage(Encoder.encode(
54                          new Protocolv20Encoder(), cipherSuites,
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          }
64      }
65  
66      @Override
67      public void doAction(StateMachine stateMachine, RmcpMessage message) {
68          // No action is needed
69      }
70  
71  }