/*
* Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package sun.security.jgss.wrapper;
import java.util.HashMap;
import java.security.Provider;
import java.security.AccessController;
import java.security.PrivilegedAction;
import org.ietf.jgss.Oid;
import sun.security.action.PutAllAction;
/**
* Defines the Sun NativeGSS provider for plugging in the
* native GSS mechanisms to Java GSS.
*
* List of supported mechanisms depends on the local
* machine configuration.
*
* @author Yu-Ching Valerie Peng
*/
public final class SunNativeProvider extends Provider {
private static final long serialVersionUID = -238911724858694204L;
private static final String NAME = "SunNativeGSS";
private static final String INFO = "Sun Native GSS provider";
private static final String MF_CLASS =
"sun.security.jgss.wrapper.NativeGSSFactory";
private static final String LIB_PROP = "sun.security.jgss.lib";
private static final String DEBUG_PROP = "sun.security.nativegss.debug";
private static HashMap MECH_MAP;
static final Provider INSTANCE = new SunNativeProvider();
static boolean DEBUG;
static void debug(String message) {
if (DEBUG) {
if (message == null) {
throw new NullPointerException();
}
System.out.println(NAME + ": " + message);
}
}
static {
MECH_MAP =
AccessController.doPrivileged(new PrivilegedAction<HashMap>() {
public HashMap run() {
DEBUG = Boolean.parseBoolean
(System.getProperty(DEBUG_PROP));
try {
System.loadLibrary("j2gss");
} catch (Error err) {
debug("No j2gss library found!");
if (DEBUG) err.printStackTrace();
return null;
}
String gssLib = System.getProperty(LIB_PROP);
if (gssLib == null || gssLib.trim().equals("")) {
String osname = System.getProperty("os.name");
if (osname.startsWith("SunOS")) {
gssLib = "libgss.so";
} else if (osname.startsWith("Linux")) {
gssLib = "libgssapi.so";
}
}
if (GSSLibStub.init(gssLib)) {
debug("Loaded GSS library: " + gssLib);
Oid[] mechs = GSSLibStub.indicateMechs();
HashMap<String, String> map =
new HashMap<String, String>();
for (int i = 0; i < mechs.length; i++) {
debug("Native MF for " + mechs[i]);
map.put("GssApiMechanism." + mechs[i],
MF_CLASS);
}
return map;
}
return null;
}
});
}
public SunNativeProvider() {
/* We are the Sun NativeGSS provider */
super(NAME, 1.0, INFO);
if (MECH_MAP != null) {
AccessController.doPrivileged(new PutAllAction(this, MECH_MAP));
}
}
}