J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any 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 gssLib = System.getProperty(LIB_PROP); |
| 81 | if (gssLib == null || gssLib.trim().equals("")) { |
| 82 | String osname = System.getProperty("os.name"); |
| 83 | if (osname.startsWith("SunOS")) { |
| 84 | gssLib = "libgss.so"; |
| 85 | } else if (osname.startsWith("Linux")) { |
| 86 | gssLib = "libgssapi.so"; |
| 87 | } |
| 88 | } |
| 89 | if (GSSLibStub.init(gssLib)) { |
| 90 | debug("Loaded GSS library: " + gssLib); |
| 91 | Oid[] mechs = GSSLibStub.indicateMechs(); |
| 92 | HashMap<String, String> map = |
| 93 | new HashMap<String, String>(); |
| 94 | for (int i = 0; i < mechs.length; i++) { |
| 95 | debug("Native MF for " + mechs[i]); |
| 96 | map.put("GssApiMechanism." + mechs[i], |
| 97 | MF_CLASS); |
| 98 | } |
| 99 | return map; |
| 100 | } |
| 101 | return null; |
| 102 | } |
| 103 | }); |
| 104 | } |
| 105 | |
| 106 | public SunNativeProvider() { |
| 107 | /* We are the Sun NativeGSS provider */ |
| 108 | super(NAME, 1.0, INFO); |
| 109 | |
| 110 | if (MECH_MAP != null) { |
| 111 | AccessController.doPrivileged(new PutAllAction(this, MECH_MAP)); |
| 112 | } |
| 113 | } |
| 114 | } |