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| 1 | +/* | |
| 2 | + * Copyright (c) 2005, 2011, 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.security.jgss.wrapper; | |
| 27 | + | |
| 28 | +import java.util.HashMap; | |
| 29 | +import java.security.Provider; | |
| 30 | +import java.security.AccessController; | |
| 31 | +import java.security.PrivilegedAction; | |
| 32 | +import org.ietf.jgss.Oid; | |
| 33 | +import sun.security.action.PutAllAction; | |
| 34 | + | |
| 35 | +/** | |
| 36 | + * Defines the Sun NativeGSS provider for plugging in the | |
| 37 | + * native GSS mechanisms to Java GSS. | |
| 38 | + * | |
| 39 | + * List of supported mechanisms depends on the local | |
| 40 | + * machine configuration. | |
| 41 | + * | |
| 42 | + * @author Yu-Ching Valerie Peng | |
| 43 | + */ | |
| 44 | + | |
| 45 | +public final class SunNativeProvider extends Provider { | |
| 46 | + | |
| 47 | + private static final long serialVersionUID = -238911724858694204L; | |
| 48 | + | |
| 49 | + private static final String NAME = "SunNativeGSS"; | |
| 50 | + private static final String INFO = "Sun Native GSS provider"; | |
| 51 | + private static final String MF_CLASS = | |
| 52 | + "sun.security.jgss.wrapper.NativeGSSFactory"; | |
| 53 | + private static final String LIB_PROP = "sun.security.jgss.lib"; | |
| 54 | + private static final String DEBUG_PROP = "sun.security.nativegss.debug"; | |
| 55 | + private static HashMap MECH_MAP; | |
| 56 | + static final Provider INSTANCE = new SunNativeProvider(); | |
| 57 | + static boolean DEBUG; | |
| 58 | + static void debug(String message) { | |
| 59 | + if (DEBUG) { | |
| 60 | + if (message == null) { | |
| 61 | + throw new NullPointerException(); | |
| 62 | + } | |
| 63 | + System.out.println(NAME + ": " + message); | |
| 64 | + } | |
| 65 | + } | |
| 66 | + | |
| 67 | + static { | |
| 68 | + MECH_MAP = | |
| 69 | + AccessController.doPrivileged(new PrivilegedAction<HashMap>() { | |
| 70 | + public HashMap run() { | |
| 71 | + DEBUG = Boolean.parseBoolean | |
| 72 | + (System.getProperty(DEBUG_PROP)); | |
| 73 | + try { | |
| 74 | + System.loadLibrary("j2gss"); | |
| 75 | + } catch (Error err) { | |
| 76 | + debug("No j2gss library found!"); | |
| 77 | + if (DEBUG) err.printStackTrace(); | |
| 78 | + return null; | |
| 79 | + } | |
| 80 | + String gssLibs[] = new String[0]; | |
| 81 | + String defaultLib = System.getProperty(LIB_PROP); | |
| 82 | + if (defaultLib == null || defaultLib.trim().equals("")) { | |
| 83 | + String osname = System.getProperty("os.name"); | |
| 84 | + if (osname.startsWith("SunOS")) { | |
| 85 | + gssLibs = new String[]{ "libgss.so" }; | |
| 86 | + } else if (osname.startsWith("Linux")) { | |
| 87 | + gssLibs = new String[]{ | |
| 88 | + "libgssapi.so", | |
| 89 | + "libgssapi_krb5.so", | |
| 90 | + "libgssapi_krb5.so.2", | |
| 91 | + }; | |
| 92 | + } | |
| 93 | + } else { | |
| 94 | + gssLibs = new String[]{ defaultLib }; | |
| 95 | + } | |
| 96 | + for (String libName: gssLibs) { | |
| 97 | + if (GSSLibStub.init(libName)) { | |
| 98 | + debug("Loaded GSS library: " + libName); | |
| 99 | + Oid[] mechs = GSSLibStub.indicateMechs(); | |
| 100 | + HashMap<String, String> map = | |
| 101 | + new HashMap<String, String>(); | |
| 102 | + for (int i = 0; i < mechs.length; i++) { | |
| 103 | + debug("Native MF for " + mechs[i]); | |
| 104 | + map.put("GssApiMechanism." + mechs[i], | |
| 105 | + MF_CLASS); | |
| 106 | + } | |
| 107 | + return map; | |
| 108 | + } | |
| 109 | + } | |
| 110 | + return null; | |
| 111 | + } | |
| 112 | + }); | |
| 113 | + } | |
| 114 | + | |
| 115 | + public SunNativeProvider() { | |
| 116 | + /* We are the Sun NativeGSS provider */ | |
| 117 | + super(NAME, 1.0, INFO); | |
| 118 | + | |
| 119 | + if (MECH_MAP != null) { | |
| 120 | + AccessController.doPrivileged(new PutAllAction(this, MECH_MAP)); | |
| 121 | + } | |
| 122 | + } | |
| 123 | +} | |