1 /* 2 * Copyright (c) 2004, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.jdi; 27 28 /** 29 * The {@code JDIPermission} class represents access rights to 30 * the {@code VirtualMachineManager}. This is the permission 31 * which the SecurityManager will check when code that is running with 32 * a SecurityManager requests access to the VirtualMachineManager, as 33 * defined in the Java Debug Interface (JDI) for the Java platform. 34 * <P> 35 * A {@code JDIPermission} object contains a name (also referred 36 * to as a "target name") but no actions list; you either have the 37 * named permission or you don't. 38 * <P> 39 * The following table provides a summary description of what the 40 * permission allows, and discusses the risks of granting code the 41 * permission. 42 * 43 * <table class="plain"> 44 * <caption style="display:none">Table shows permission target name, what the 45 * permission allows, and associated risks</caption> 46 * <tr> 47 * <th>Permission Target Name</th> 48 * <th>What the Permission Allows</th> 49 * <th>Risks of Allowing this Permission</th> 50 * </tr> 51 * 52 * <tr> 53 * <td>virtualMachineManager</td> 54 * <td>Ability to inspect and modify the JDI objects in the 55 * {@code VirtualMachineManager} 56 * </td> 57 * <td>This allows an attacker to control the 58 * {@code VirtualMachineManager} and cause the system to 59 * misbehave. 60 * </td> 61 * </tr> 62 * 63 * </table> 64 * 65 * <p> 66 * Programmers do not normally create JDIPermission objects directly. 67 * Instead they are created by the security policy code based on reading 68 * the security policy file. 69 * 70 * @author Tim Bell 71 * @since 1.5 72 * 73 * @see com.sun.jdi.Bootstrap 74 * @see java.security.BasicPermission 75 * @see java.security.Permission 76 * @see java.security.Permissions 77 * @see java.security.PermissionCollection 78 * @see java.lang.SecurityManager 79 * 80 */ 81 82 public final class JDIPermission extends java.security.BasicPermission { 83 84 private static final long serialVersionUID = -6988461416938786271L; 85 86 /** 87 * The {@code JDIPermission} class represents access rights to the 88 * {@code VirtualMachineManager} 89 * @param name Permission name. Must be "virtualMachineManager". 90 * @throws IllegalArgumentException if the name argument is invalid. 91 */ 92 public JDIPermission(String name) { 93 super(name); 94 if (!name.equals("virtualMachineManager")) { 95 throw new IllegalArgumentException("name: " + name); 96 } 97 } 98 99 /** 100 * Constructs a new JDIPermission object. 101 * 102 * @param name Permission name. Must be "virtualMachineManager". 103 * @param actions Must be either null or the empty string. 104 * @throws IllegalArgumentException if arguments are invalid. 105 */ 106 public JDIPermission(String name, String actions) 107 throws IllegalArgumentException { 108 super(name); 109 if (!name.equals("virtualMachineManager")) { 110 throw new IllegalArgumentException("name: " + name); 111 } 112 if (actions != null && actions.length() > 0) { 113 throw new IllegalArgumentException("actions: " + actions); 114 } 115 } 116 }