143 lines
4.7 KiB
Java
143 lines
4.7 KiB
Java
/*
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* Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.security.jgss.wrapper;
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import org.ietf.jgss.*;
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import java.security.Provider;
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import sun.security.jgss.GSSUtil;
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import sun.security.jgss.spi.GSSCredentialSpi;
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import sun.security.jgss.spi.GSSNameSpi;
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/**
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* This class is essentially a wrapper class for the gss_cred_id_t
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* structure of the native GSS library.
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* @author Valerie Peng
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* @since 1.6
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*/
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public class GSSCredElement implements GSSCredentialSpi {
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private int usage;
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long pCred; // Pointer to the gss_cred_id_t structure
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private GSSNameElement name = null;
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private GSSLibStub cStub;
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// Perform the necessary ServicePermission check on this cred
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void doServicePermCheck() throws GSSException {
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if (GSSUtil.isKerberosMech(cStub.getMech())) {
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if (System.getSecurityManager() != null) {
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if (isInitiatorCredential()) {
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String tgsName = Krb5Util.getTGSName(name);
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Krb5Util.checkServicePermission(tgsName, "initiate");
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}
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if (isAcceptorCredential() &&
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name != GSSNameElement.DEF_ACCEPTOR) {
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String krbName = name.getKrbName();
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Krb5Util.checkServicePermission(krbName, "accept");
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}
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}
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}
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}
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// Construct delegation cred using the actual context mech and srcName
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GSSCredElement(long pCredentials, GSSNameElement srcName, Oid mech)
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throws GSSException {
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pCred = pCredentials;
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cStub = GSSLibStub.getInstance(mech);
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usage = GSSCredential.INITIATE_ONLY;
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name = srcName;
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}
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GSSCredElement(GSSNameElement name, int lifetime, int usage,
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GSSLibStub stub) throws GSSException {
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cStub = stub;
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this.usage = usage;
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if (name != null) { // Could be GSSNameElement.DEF_ACCEPTOR
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this.name = name;
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doServicePermCheck();
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pCred = cStub.acquireCred(this.name.pName, lifetime, usage);
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} else {
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pCred = cStub.acquireCred(0, lifetime, usage);
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this.name = new GSSNameElement(cStub.getCredName(pCred), cStub);
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doServicePermCheck();
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}
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}
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public Provider getProvider() {
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return SunNativeProvider.INSTANCE;
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}
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public void dispose() throws GSSException {
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name = null;
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if (pCred != 0) {
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pCred = cStub.releaseCred(pCred);
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}
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}
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public GSSNameElement getName() throws GSSException {
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return (name == GSSNameElement.DEF_ACCEPTOR ?
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null : name);
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}
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public int getInitLifetime() throws GSSException {
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if (isInitiatorCredential()) {
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return cStub.getCredTime(pCred);
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} else return 0;
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}
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public int getAcceptLifetime() throws GSSException {
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if (isAcceptorCredential()) {
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return cStub.getCredTime(pCred);
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} else return 0;
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}
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public boolean isInitiatorCredential() {
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return (usage != GSSCredential.ACCEPT_ONLY);
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}
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public boolean isAcceptorCredential() {
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return (usage != GSSCredential.INITIATE_ONLY);
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}
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public Oid getMechanism() {
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return cStub.getMech();
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}
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public String toString() {
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// No hex bytes available for native impl
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return "N/A";
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}
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protected void finalize() throws Throwable {
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dispose();
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}
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@Override
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public GSSCredentialSpi impersonate(GSSNameSpi name) throws GSSException {
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throw new GSSException(GSSException.FAILURE, -1,
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"Not supported yet");
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}
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}
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