| 1 | /* RuntimePermission.java -- permission for a secure runtime action
|
|---|
| 2 | Copyright (C) 1998, 2000, 2002 Free Software Foundation, Inc.
|
|---|
| 3 |
|
|---|
| 4 | This file is part of GNU Classpath.
|
|---|
| 5 |
|
|---|
| 6 | GNU Classpath is free software; you can redistribute it and/or modify
|
|---|
| 7 | it under the terms of the GNU General Public License as published by
|
|---|
| 8 | the Free Software Foundation; either version 2, or (at your option)
|
|---|
| 9 | any later version.
|
|---|
| 10 |
|
|---|
| 11 | GNU Classpath is distributed in the hope that it will be useful, but
|
|---|
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 14 | General Public License for more details.
|
|---|
| 15 |
|
|---|
| 16 | You should have received a copy of the GNU General Public License
|
|---|
| 17 | along with GNU Classpath; see the file COPYING. If not, write to the
|
|---|
| 18 | Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|---|
| 19 | 02111-1307 USA.
|
|---|
| 20 |
|
|---|
| 21 | Linking this library statically or dynamically with other modules is
|
|---|
| 22 | making a combined work based on this library. Thus, the terms and
|
|---|
| 23 | conditions of the GNU General Public License cover the whole
|
|---|
| 24 | combination.
|
|---|
| 25 |
|
|---|
| 26 | As a special exception, the copyright holders of this library give you
|
|---|
| 27 | permission to link this library with independent modules to produce an
|
|---|
| 28 | executable, regardless of the license terms of these independent
|
|---|
| 29 | modules, and to copy and distribute the resulting executable under
|
|---|
| 30 | terms of your choice, provided that you also meet, for each linked
|
|---|
| 31 | independent module, the terms and conditions of the license of that
|
|---|
| 32 | module. An independent module is a module which is not derived from
|
|---|
| 33 | or based on this library. If you modify this library, you may extend
|
|---|
| 34 | this exception to your version of the library, but you are not
|
|---|
| 35 | obligated to do so. If you do not wish to do so, delete this
|
|---|
| 36 | exception statement from your version. */
|
|---|
| 37 |
|
|---|
| 38 |
|
|---|
| 39 | package java.lang;
|
|---|
| 40 |
|
|---|
| 41 | import java.security.BasicPermission;
|
|---|
| 42 |
|
|---|
| 43 | /**
|
|---|
| 44 | * A <code>RuntimePermission</code> contains a permission name, but no
|
|---|
| 45 | * actions list. This means you either have the permission or you don't.
|
|---|
| 46 | *
|
|---|
| 47 | * Permission names have the follow the hierarchial property naming
|
|---|
| 48 | * convention. In addition, an asterisk may appear at the end of a
|
|---|
| 49 | * name if following a period or by itself.
|
|---|
| 50 | *
|
|---|
| 51 | * <table border=1>
|
|---|
| 52 | * <tr><th>Valid names</th><th>Invalid names</th></tr>
|
|---|
| 53 | * <tr><td>"accessClassInPackage.*","*"</td>
|
|---|
| 54 | * <td>"**", "*x", "*.a"</td></tr>
|
|---|
| 55 | * </table>
|
|---|
| 56 | * <br>
|
|---|
| 57 | *
|
|---|
| 58 | * The following table provides a list of all the possible RuntimePermission
|
|---|
| 59 | * permission names with a description of what that permission allows.<br>
|
|---|
| 60 | * <table border=1>
|
|---|
| 61 | * <tr><th>Permission Name</th><th>Permission Allows</th><th>Risks</th</tr>
|
|---|
| 62 | * <tr>
|
|---|
| 63 | * <td><code>createClassLoader</code></td>
|
|---|
| 64 | * <td>creation of a class loader</td>
|
|---|
| 65 | * <td>a class loader can load rogue classes which bypass all security
|
|---|
| 66 | * permissions</td></tr>
|
|---|
| 67 | * <tr>
|
|---|
| 68 | * <td><code>getClassLoader</code></td>
|
|---|
| 69 | * <td>retrieval of the class loader for the calling class</td>
|
|---|
| 70 | * <td>rogue code could load classes not otherwise available</td></tr>
|
|---|
| 71 | * <tr>
|
|---|
| 72 | * <td><code>setContextClassLoader</code></td>
|
|---|
| 73 | * <td>allows the setting of the context class loader used by a thread</td>
|
|---|
| 74 | * <td>rogue code could change the context class loader needed by system
|
|---|
| 75 | * threads</td></tr>
|
|---|
| 76 | * <tr>
|
|---|
|
|---|
