1 /* |
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.net; |
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27 |
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28 import java.net.*; |
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29 import jdk.net.*; |
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30 import java.io.IOException; |
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31 import java.io.FileDescriptor; |
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32 import java.security.PrivilegedAction; |
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33 import java.security.AccessController; |
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34 import java.lang.reflect.Field; |
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35 import java.util.Set; |
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36 import java.util.HashSet; |
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37 import java.util.HashMap; |
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38 import java.util.Collections; |
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39 |
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40 /** |
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41 * Contains the native implementation for extended socket options |
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42 * together with some other static utilities |
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43 */ |
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44 public class ExtendedOptionsImpl { |
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45 |
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46 static { |
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47 AccessController.doPrivileged((PrivilegedAction<Void>)() -> { |
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48 System.loadLibrary("net"); |
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49 return null; |
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50 }); |
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51 init(); |
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52 } |
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53 |
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54 private ExtendedOptionsImpl() {} |
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55 |
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56 public static void checkSetOptionPermission(SocketOption<?> option) { |
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57 SecurityManager sm = System.getSecurityManager(); |
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58 if (sm == null) { |
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59 return; |
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60 } |
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61 String check = "setOption." + option.name(); |
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62 sm.checkPermission(new NetworkPermission(check)); |
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63 } |
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64 |
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65 public static void checkGetOptionPermission(SocketOption<?> option) { |
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66 SecurityManager sm = System.getSecurityManager(); |
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67 if (sm == null) { |
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68 return; |
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69 } |
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70 String check = "getOption." + option.name(); |
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71 sm.checkPermission(new NetworkPermission(check)); |
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72 } |
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73 |
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74 public static void checkValueType(Object value, Class<?> type) { |
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75 if (!type.isAssignableFrom(value.getClass())) { |
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76 String s = "Found: " + value.getClass().toString() + " Expected: " |
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77 + type.toString(); |
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78 throw new IllegalArgumentException(s); |
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79 } |
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80 } |
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81 |
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82 private static native void init(); |
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83 |
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84 /* |
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85 * Extension native implementations |
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86 * |
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87 * SO_FLOW_SLA |
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88 */ |
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89 public static native void setFlowOption(FileDescriptor fd, SocketFlow f); |
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90 public static native void getFlowOption(FileDescriptor fd, SocketFlow f); |
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91 public static native boolean flowSupported(); |
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92 } |
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