jdk-sandbox: src/java.base/unix/classes/sun/net/PortConfig.java@9a97b1393e72 (annotated)

22341 4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	1	/*
55693 9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	2	* Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved.
22341 4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	4	*
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	5	* This code is free software; you can redistribute it and/or modify it
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	6	* under the terms of the GNU General Public License version 2 only, as
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	7	* published by the Free Software Foundation. Oracle designates this
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	8	* particular file as subject to the "Classpath" exception as provided
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	9	* by Oracle in the LICENSE file that accompanied this code.
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	10	*
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	11	* This code is distributed in the hope that it will be useful, but WITHOUT
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	14	* version 2 for more details (a copy is included in the LICENSE file that
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	15	* accompanied this code).
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	16	*
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	17	* You should have received a copy of the GNU General Public License version
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	18	* 2 along with this work; if not, write to the Free Software Foundation,
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	20	*
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	22	* or visit www.oracle.com if you need additional information or have any
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	23	* questions.
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	24	*/
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	25
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	26	package sun.net;
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	27
55693 9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	28	import sun.security.action.GetPropertyAction;
22341 4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	29
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	30	/**
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	31	* Determines the ephemeral port range in use on this system.
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	32	* If this cannot be determined, then the default settings
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	33	* of the OS are returned.
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	34	*/
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	35
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	36	public final class PortConfig {
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	37
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	38	private static int defaultUpper, defaultLower;
32649 2ee9017c7597 8136583: Core libraries should use blessed modifier order martin parents: 29986 diff changeset	39	private static final int upper, lower;
22341 4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	40
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	41	private PortConfig() {}
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	42
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	43	static {
55693 9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	44	jdk.internal.loader.BootLoader.loadLibrary("net");
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	45	String os = GetPropertyAction.privilegedGetProperty("os.name");
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	46	if (os.startsWith("Linux")) {
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	47	defaultLower = 32768;
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	48	defaultUpper = 61000;
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	49	} else if (os.startsWith("SunOS")) {
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	50	defaultLower = 32768;
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	51	defaultUpper = 65535;
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	52	} else if (os.contains("OS X")) {
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	53	defaultLower = 49152;
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	54	defaultUpper = 65535;
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	55	} else if (os.startsWith("AIX")) {
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	56	// The ephemeral port is OS version dependent on AIX:
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	57	// http://publib.boulder.ibm.com/infocenter/aix/v7r1/topic/com.ibm.aix.rsct315.admin/bl503_ephport.htm
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	58	// However, on AIX 5.3 / 6.1 / 7.1 we always see the
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	59	// settings below by using:
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	60	// /usr/sbin/no -a \| fgrep ephemeral
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	61	defaultLower = 32768;
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	62	defaultUpper = 65535;
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	63	} else {
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	64	throw new InternalError(
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	65	"sun.net.PortConfig: unknown OS");
9a97b1393e72 8227587: Add internal privileged System.loadLibrary redestad parents: 47216 diff changeset	66	}
22341 4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	67
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	68	int v = getLower0();
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	69	if (v == -1) {
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	70	v = defaultLower;
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	71	}
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	72	lower = v;
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	73
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	74	v = getUpper0();
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	75	if (v == -1) {
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	76	v = defaultUpper;
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	77	}
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	78	upper = v;
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	79	}
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	80
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	81	static native int getLower0();
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	82	static native int getUpper0();
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	83
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	84	public static int getLower() {
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	85	return lower;
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	86	}
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	87
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	88	public static int getUpper() {
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	89	return upper;
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	90	}
4689530d03b9 8028293: Check local configuration for actual ephemeral port range michaelm parents: diff changeset	91	}

author	redestad
	Wed, 17 Jul 2019 12:35:46 +0200
changeset 55693	9a97b1393e72
parent 47216	71c04702a3d5
permissions	-rw-r--r--