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	/*
	* Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package com.sun.tools.attach;

	/**
	* When a {@link java.lang.SecurityManager SecurityManager} set, this
	* is the permission which will be checked when code invokes {@link
	* VirtualMachine#attach VirtalMachine.attach} to attach to a target virtual
	* machine.
	* This permission is also checked when an {@link
	* com.sun.tools.attach.spi.AttachProvider AttachProvider} is created. </p>
	*
	* <p> An <code>AttachPermission</code> object contains a name (also referred
	* to as a "target name") but no actions list; you either have the
	* named permission or you don't.
	* The following table provides a summary description of what the
	* permission allows, and discusses the risks of granting code the
	* permission.
	* <P>
	* <table border=1 cellpadding=5 summary="Table shows permission
	* target name, what the permission allows, and associated risks">
	* <tr>
	* <th>Permission Target Name</th>
	* <th>What the Permission Allows</th>
	* <th>Risks of Allowing this Permission</th>
	* </tr>
	*
	* <tr>
	* <td>attachVirtualMachine</td>
	* <td>Ability to attach to another Java virtual machine and load agents
	* into that VM.
	* </td>
	* <td>This allows an attacker to control the target VM which can potentially
	* cause it to misbehave.
	* </td>
	* </tr>
	*
	* <tr>
	* <td>createAttachProvider</td>
	* <td>Ability to create an <code>AttachProvider</code> instance.
	* </td>
	* <td>This allows an attacker to create an AttachProvider which can
	* potentially be used to attach to other Java virtual machines.
	* </td>
	* </tr>

	*
	* </table>

	* <p>
	* Programmers do not normally create AttachPermission objects directly.
	* Instead they are created by the security policy code based on reading
	* the security policy file.
	*
	* @see com.sun.tools.attach.VirtualMachine
	* @see com.sun.tools.attach.spi.AttachProvider
	*/

	@jdk.Exported
	public final class AttachPermission extends java.security.BasicPermission {

	/** use serialVersionUID for interoperability */
	static final long serialVersionUID = -4619447669752976181L;

	/**
	* Constructs a new AttachPermission object.
	*
	* @param name Permission name. Must be either "attachVirtualMachine",
	* or "createAttachProvider".
	*
	* @throws NullPointerException if name is <code>null</code>.
	* @throws IllegalArgumentException if the name is invalid.
	*/
	public AttachPermission(String name) {
	super(name);
	if (!name.equals("attachVirtualMachine") && !name.equals("createAttachProvider")) {
	throw new IllegalArgumentException("name: " + name);
	}
	}

	/**
	* Constructs a new AttachPermission object.
	*
	* @param name Permission name. Must be either "attachVirtualMachine",
	* or "createAttachProvider".
	*
	* @param actions Not used and should be <code>null</code>, or
	* the empty string.
	*
	* @throws NullPointerException if name is <code>null</code>.
	* @throws IllegalArgumentException if arguments are invalid.
	*/
	public AttachPermission(String name, String actions) {
	super(name);
	if (!name.equals("attachVirtualMachine") && !name.equals("createAttachProvider")) {
	throw new IllegalArgumentException("name: " + name);
	}
	if (actions != null && actions.length() > 0) {
	throw new IllegalArgumentException("actions: " + actions);
	}
	}
	}

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