author | ksrini |
Mon, 01 May 2017 07:33:19 -0700 | |
changeset 44858 | 7183899b064b |
parent 25859 | 3317bb8137f4 |
child 45130 | 469dceb426cc |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package java.lang.management; |
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/** |
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* The permission which the SecurityManager will check when code |
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* that is running with a SecurityManager calls methods defined |
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* in the management interface for the Java platform. |
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* <P> |
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* The following table |
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* provides a summary description of what the permission allows, |
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* and discusses the risks of granting code the permission. |
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* |
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* <table border="1" cellpadding=5> |
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* <caption style="display:none">Table shows permission target name, what the permission allows, and associated risks</caption> |
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* <tr> |
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* <th>Permission Target Name</th> |
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* <th>What the Permission Allows</th> |
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* <th>Risks of Allowing this Permission</th> |
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* </tr> |
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* |
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* <tr> |
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* <td>control</td> |
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* <td>Ability to control the runtime characteristics of the Java virtual |
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* machine, for example, enabling and disabling the verbose output for |
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* the class loading or memory system, setting the threshold of a memory |
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* pool, and enabling and disabling the thread contention monitoring |
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* support. Some actions controlled by this permission can disclose |
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* information about the running application, like the -verbose:class |
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* flag. |
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* </td> |
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* <td>This allows an attacker to control the runtime characteristics |
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* of the Java virtual machine and cause the system to misbehave. An |
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* attacker can also access some information related to the running |
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* application. |
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* </td> |
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* </tr> |
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* <tr> |
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* <td>monitor</td> |
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* <td>Ability to retrieve runtime information about |
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* the Java virtual machine such as thread |
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* stack trace, a list of all loaded class names, and input arguments |
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* to the Java virtual machine.</td> |
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* <td>This allows malicious code to monitor runtime information and |
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* uncover vulnerabilities.</td> |
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* </tr> |
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* |
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* </table> |
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* |
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* <p> |
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* Programmers do not normally create ManagementPermission objects directly. |
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* Instead they are created by the security policy code based on reading |
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* the security policy file. |
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* |
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* @author Mandy Chung |
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* @since 1.5 |
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* |
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* @see java.security.BasicPermission |
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* @see java.security.Permission |
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* @see java.security.Permissions |
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* @see java.security.PermissionCollection |
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* @see java.lang.SecurityManager |
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* |
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*/ |
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public final class ManagementPermission extends java.security.BasicPermission { |
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private static final long serialVersionUID = 1897496590799378737L; |
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/** |
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* Constructs a ManagementPermission with the specified name. |
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* |
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* @param name Permission name. Must be either "monitor" or "control". |
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* |
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* @throws NullPointerException if <code>name</code> is <code>null</code>. |
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* @throws IllegalArgumentException if <code>name</code> is empty or invalid. |
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*/ |
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public ManagementPermission(String name) { |
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super(name); |
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if (!name.equals("control") && !name.equals("monitor")) { |
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throw new IllegalArgumentException("name: " + name); |
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} |
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} |
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/** |
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* Constructs a new ManagementPermission object. |
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* |
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* @param name Permission name. Must be either "monitor" or "control". |
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* @param actions Must be either null or the empty string. |
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* |
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* @throws NullPointerException if <code>name</code> is <code>null</code>. |
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* @throws IllegalArgumentException if <code>name</code> is empty or |
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* if arguments are invalid. |
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*/ |
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public ManagementPermission(String name, String actions) |
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throws IllegalArgumentException { |
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super(name); |
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if (!name.equals("control") && !name.equals("monitor")) { |
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throw new IllegalArgumentException("name: " + name); |
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} |
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if (actions != null && actions.length() > 0) { |
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throw new IllegalArgumentException("actions: " + actions); |
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} |
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} |
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} |