/*
 * Copyright (c) 2000, 2010, 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package sun.security.jgss;

import org.ietf.jgss.*;
import sun.security.jgss.spi.*;
import java.security.Provider;
import java.security.AccessController;
import java.security.PrivilegedAction;

This class provides the default implementation of the GSSManager interface.
/** * This class provides the default implementation of the GSSManager * interface. */
public class GSSManagerImpl extends GSSManager { // Undocumented property private static final String USE_NATIVE_PROP = "sun.security.jgss.native"; private static final Boolean USE_NATIVE; static { USE_NATIVE = AccessController.doPrivileged(new PrivilegedAction<Boolean>() { public Boolean run() { String osname = System.getProperty("os.name"); if (osname.startsWith("SunOS") || osname.startsWith("Linux")) { return new Boolean(System.getProperty (USE_NATIVE_PROP)); } return Boolean.FALSE; } }); } private ProviderList list; // Used by java SPNEGO impl to make sure native is disabled public GSSManagerImpl(GSSCaller caller, boolean useNative) { list = new ProviderList(caller, useNative); } // Used by HTTP/SPNEGO NegotiatorImpl public GSSManagerImpl(GSSCaller caller) { list = new ProviderList(caller, USE_NATIVE); } public GSSManagerImpl() { list = new ProviderList(GSSCaller.CALLER_UNKNOWN, USE_NATIVE); } public Oid[] getMechs(){ return list.getMechs(); } public Oid[] getNamesForMech(Oid mech) throws GSSException { MechanismFactory factory = list.getMechFactory(mech); return factory.getNameTypes().clone(); } public Oid[] getMechsForName(Oid nameType){ Oid[] mechs = list.getMechs(); Oid[] retVal = new Oid[mechs.length]; int pos = 0; // Compatibility with RFC 2853 old NT_HOSTBASED_SERVICE value. if (nameType.equals(GSSNameImpl.oldHostbasedServiceName)) { nameType = GSSName.NT_HOSTBASED_SERVICE; } // Iterate thru all mechs in GSS for (int i = 0; i < mechs.length; i++) { // what nametypes does this mech support? Oid mech = mechs[i]; try { Oid[] namesForMech = getNamesForMech(mech); // Is the desired Oid present in that list? if (nameType.containedIn(namesForMech)) { retVal[pos++] = mech; } } catch (GSSException e) { // Squelch it and just skip over this mechanism GSSUtil.debug("Skip " + mech + ": error retrieving supported name types"); } } // Trim the list if needed if (pos < retVal.length) { Oid[] temp = new Oid[pos]; for (int i = 0; i < pos; i++) temp[i] = retVal[i]; retVal = temp; } return retVal; } public GSSName createName(String nameStr, Oid nameType) throws GSSException { return new GSSNameImpl(this, nameStr, nameType); } public GSSName createName(byte name[], Oid nameType) throws GSSException { return new GSSNameImpl(this, name, nameType); } public GSSName createName(String nameStr, Oid nameType, Oid mech) throws GSSException { return new GSSNameImpl(this, nameStr, nameType, mech); } public GSSName createName(byte name[], Oid nameType, Oid mech) throws GSSException { return new GSSNameImpl(this, name, nameType, mech); } public GSSCredential createCredential(int usage) throws GSSException { return new GSSCredentialImpl(this, usage); } public GSSCredential createCredential(GSSName aName, int lifetime, Oid mech, int usage) throws GSSException { return new GSSCredentialImpl(this, aName, lifetime, mech, usage); } public GSSCredential createCredential(GSSName aName, int lifetime, Oid mechs[], int usage) throws GSSException { return new GSSCredentialImpl(this, aName, lifetime, mechs, usage); } public GSSContext createContext(GSSName peer, Oid mech, GSSCredential myCred, int lifetime) throws GSSException { return new GSSContextImpl(this, peer, mech, myCred, lifetime); } public GSSContext createContext(GSSCredential myCred) throws GSSException { return new GSSContextImpl(this, myCred); } public GSSContext createContext(byte[] interProcessToken) throws GSSException { return new GSSContextImpl(this, interProcessToken); } public void addProviderAtFront(Provider p, Oid mech) throws GSSException { list.addProviderAtFront(p, mech); } public void addProviderAtEnd(Provider p, Oid mech) throws GSSException { list.addProviderAtEnd(p, mech); } public GSSCredentialSpi getCredentialElement(GSSNameSpi name, int initLifetime, int acceptLifetime, Oid mech, int usage) throws GSSException { MechanismFactory factory = list.getMechFactory(mech); return factory.getCredentialElement(name, initLifetime, acceptLifetime, usage); } // Used by java SPNEGO impl public GSSNameSpi getNameElement(String name, Oid nameType, Oid mech) throws GSSException { // Just use the most preferred MF impl assuming GSSNameSpi // objects are interoperable among providers MechanismFactory factory = list.getMechFactory(mech); return factory.getNameElement(name, nameType); } // Used by java SPNEGO impl public GSSNameSpi getNameElement(byte[] name, Oid nameType, Oid mech) throws GSSException { // Just use the most preferred MF impl assuming GSSNameSpi // objects are interoperable among providers MechanismFactory factory = list.getMechFactory(mech); return factory.getNameElement(name, nameType); } GSSContextSpi getMechanismContext(GSSNameSpi peer, GSSCredentialSpi myInitiatorCred, int lifetime, Oid mech) throws GSSException { Provider p = null; if (myInitiatorCred != null) { p = myInitiatorCred.getProvider(); } MechanismFactory factory = list.getMechFactory(mech, p); return factory.getMechanismContext(peer, myInitiatorCred, lifetime); } GSSContextSpi getMechanismContext(GSSCredentialSpi myAcceptorCred, Oid mech) throws GSSException { Provider p = null; if (myAcceptorCred != null) { p = myAcceptorCred.getProvider(); } MechanismFactory factory = list.getMechFactory(mech, p); return factory.getMechanismContext(myAcceptorCred); } GSSContextSpi getMechanismContext(byte[] exportedContext) throws GSSException { if ((exportedContext == null) || (exportedContext.length == 0)) { throw new GSSException(GSSException.NO_CONTEXT); } GSSContextSpi result = null; // Only allow context import with native provider since JGSS // still has not defined its own interprocess token format Oid[] mechs = list.getMechs(); for (int i = 0; i < mechs.length; i++) { MechanismFactory factory = list.getMechFactory(mechs[i]); if (factory.getProvider().getName().equals("SunNativeGSS")) { result = factory.getMechanismContext(exportedContext); if (result != null) break; } } if (result == null) { throw new GSSException(GSSException.UNAVAILABLE); } return result; } }