1 /*
2 * Copyright (c) 2014, 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 sun.net;
27
28 import java.net.*;
29 import jdk.net.*;
30 import java.io.IOException;
31 import java.io.FileDescriptor;
32 import java.security.PrivilegedAction;
33 import java.security.AccessController;
34 import java.lang.reflect.Field;
35 import java.util.Set;
36 import java.util.HashSet;
37 import java.util.HashMap;
38 import java.util.Collections;
39
40 /**
41 * Contains the native implementation for extended socket options
42 * together with some other static utilities
43 */
44 public class ExtendedOptionsImpl {
45
46 static {
47 AccessController.doPrivileged((PrivilegedAction<Void>)() -> {
48 System.loadLibrary("net");
49 return null;
50 });
51 init();
52 }
53
54 private ExtendedOptionsImpl() {}
55
56 public static void checkSetOptionPermission(SocketOption<?> option) {
57 SecurityManager sm = System.getSecurityManager();
58 if (sm == null) {
63 }
64
65 public static void checkGetOptionPermission(SocketOption<?> option) {
66 SecurityManager sm = System.getSecurityManager();
67 if (sm == null) {
68 return;
69 }
70 String check = "getOption." + option.name();
71 sm.checkPermission(new NetworkPermission(check));
72 }
73
74 public static void checkValueType(Object value, Class<?> type) {
75 if (!type.isAssignableFrom(value.getClass())) {
76 String s = "Found: " + value.getClass().toString() + " Expected: "
77 + type.toString();
78 throw new IllegalArgumentException(s);
79 }
80 }
81
82 private static native void init();
83
84 /*
85 * Extension native implementations
86 *
87 * SO_FLOW_SLA
88 */
89 public static native void setFlowOption(FileDescriptor fd, SocketFlow f);
90 public static native void getFlowOption(FileDescriptor fd, SocketFlow f);
91 public static native boolean flowSupported();
92 }
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1 /*
2 * Copyright (c) 2014, 2016, 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 sun.net;
27
28 import java.net.*;
29 import jdk.net.*;
30 import java.io.FileDescriptor;
31 import java.security.PrivilegedAction;
32 import java.security.AccessController;
33
34 /**
35 * Contains the native implementation for extended socket options
36 * together with some other static utilities
37 */
38 public class ExtendedOptionsImpl {
39
40 static {
41 AccessController.doPrivileged((PrivilegedAction<Void>)() -> {
42 System.loadLibrary("net");
43 return null;
44 });
45 init();
46 }
47
48 private ExtendedOptionsImpl() {}
49
50 public static void checkSetOptionPermission(SocketOption<?> option) {
51 SecurityManager sm = System.getSecurityManager();
52 if (sm == null) {
57 }
58
59 public static void checkGetOptionPermission(SocketOption<?> option) {
60 SecurityManager sm = System.getSecurityManager();
61 if (sm == null) {
62 return;
63 }
64 String check = "getOption." + option.name();
65 sm.checkPermission(new NetworkPermission(check));
66 }
67
68 public static void checkValueType(Object value, Class<?> type) {
69 if (!type.isAssignableFrom(value.getClass())) {
70 String s = "Found: " + value.getClass().toString() + " Expected: "
71 + type.toString();
72 throw new IllegalArgumentException(s);
73 }
74 }
75
76 private static native void init();
77 private static volatile boolean checkedQuickAck;
78 private static volatile boolean isQuickAckAvailable;
79 /**
80 * Tells whether SO_QUICKACK is supported.
81 * @return
82 */
83 public static boolean isQuickAckAvailable() {
84 if (!checkedQuickAck) {
85 isQuickAckAvailable = isQuickAckAvailable0();
86 checkedQuickAck = true;
87 }
88 return isQuickAckAvailable;
89 }
90
91 /*
92 * Extension native implementations
93 *
94 * SO_FLOW_SLA
95 */
96 public static native void setFlowOption(FileDescriptor fd, SocketFlow f);
97 public static native void getFlowOption(FileDescriptor fd, SocketFlow f);
98 public static native boolean flowSupported();
99
100 /* SO_QUICKACK */
101 public static native void setQuickAckOption(FileDescriptor fd, boolean on);
102 public static native Object getQuickAckOption(FileDescriptor fd);
103 private static native boolean isQuickAckAvailable0();
104 }
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