JDK 11 java.security.jgss.jmod - Security JGSS Module

JDK 11 java.security.jgss.jmod is the JMOD file for JDK 11 Security JGSS (Java Generic Security Service) module.

JDK 11 Security JGSS module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.security.jgss.jmod.

JDK 11 Security JGSS module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Security JGSS module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.security.jgss.

You can click and view the content of each source code file in the list below.

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sun/security/jgss/krb5/Krb5AcceptCredential.java

/*
 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

package sun.security.jgss.krb5;

import java.io.IOException;
import org.ietf.jgss.*;
import sun.security.jgss.GSSCaller;
import sun.security.jgss.spi.*;
import sun.security.krb5.*;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.security.AccessController;
import java.security.AccessControlContext;
import javax.security.auth.DestroyFailedException;

/**
 * Implements the krb5 acceptor credential element.
 *
 * @author Mayank Upadhyay
 * @since 1.4
 */
public class Krb5AcceptCredential
    implements Krb5CredElement {

    private final Krb5NameElement name;
    private final ServiceCreds screds;

    private Krb5AcceptCredential(Krb5NameElement name, ServiceCreds creds) {
        /*
         * Initialize this instance with the data from the acquired
         * KerberosKey. This class needs to be a KerberosKey too
         * hence we can't just store a reference.
         */

        this.name = name;
        this.screds = creds;
    }

    static Krb5AcceptCredential getInstance(final GSSCaller caller, Krb5NameElement name)
        throws GSSException {

        final String serverPrinc = (name == null? null:
            name.getKrb5PrincipalName().getName());
        final AccessControlContext acc = AccessController.getContext();

        ServiceCreds creds = null;
        try {
            creds = AccessController.doPrivileged(
                        new PrivilegedExceptionAction<ServiceCreds>() {
                public ServiceCreds run() throws Exception {
                    return Krb5Util.getServiceCreds(
                        caller == GSSCaller.CALLER_UNKNOWN ? GSSCaller.CALLER_ACCEPT: caller,
                        serverPrinc, acc);
                }});
        } catch (PrivilegedActionException e) {
            GSSException ge =
                new GSSException(GSSException.NO_CRED, -1,
                    "Attempt to obtain new ACCEPT credentials failed!");
            ge.initCause(e.getException());
            throw ge;
        }

        if (creds == null)
            throw new GSSException(GSSException.NO_CRED, -1,
                                   "Failed to find any Kerberos credentials");

        if (name == null) {
            String fullName = creds.getName();
            if (fullName != null) {
                name = Krb5NameElement.getInstance(fullName,
                                       Krb5MechFactory.NT_GSS_KRB5_PRINCIPAL);
            }
        }

        return new Krb5AcceptCredential(name, creds);
    }

    /**
     * Returns the principal name for this credential. The name
     * is in mechanism specific format.
     *
     * @return GSSNameSpi representing principal name of this credential
     * @exception GSSException may be thrown
     */
    public final GSSNameSpi getName() throws GSSException {
        return name;
    }

    /**
     * Returns the init lifetime remaining.
     *
     * @return the init lifetime remaining in seconds
     * @exception GSSException may be thrown
     */
    public int getInitLifetime() throws GSSException {
        return 0;
    }

    /**
     * Returns the accept lifetime remaining.
     *
     * @return the accept lifetime remaining in seconds
     * @exception GSSException may be thrown
     */
    public int getAcceptLifetime() throws GSSException {
        return GSSCredential.INDEFINITE_LIFETIME;
    }

    public boolean isInitiatorCredential() throws GSSException {
        return false;
    }

    public boolean isAcceptorCredential() throws GSSException {
        return true;
    }

    /**
     * Returns the oid representing the underlying credential
     * mechanism oid.
     *
     * @return the Oid for this credential mechanism
     * @exception GSSException may be thrown
     */
    public final Oid getMechanism() {
        return Krb5MechFactory.GSS_KRB5_MECH_OID;
    }

    public final java.security.Provider getProvider() {
        return Krb5MechFactory.PROVIDER;
    }

    public EncryptionKey[] getKrb5EncryptionKeys(PrincipalName princ) {
        return screds.getEKeys(princ);
    }

    /**
     * Called to invalidate this credential element.
     */
    public void dispose() throws GSSException {
        try {
            destroy();
        } catch (DestroyFailedException e) {
            GSSException gssException =
                new GSSException(GSSException.FAILURE, -1,
                 "Could not destroy credentials - " + e.getMessage());
            gssException.initCause(e);
        }
    }

    /**
     * Destroys the locally cached EncryptionKey value and then calls
     * destroy in the base class.
     */
    public void destroy() throws DestroyFailedException {
        screds.destroy();
    }

    /**
     * Impersonation is only available on the initiator side. The
     * service must starts as an initiator to get an initial TGT to complete
     * the S4U2self protocol.
     */
    @Override
    public GSSCredentialSpi impersonate(GSSNameSpi name) throws GSSException {
        Credentials cred = screds.getInitCred();
        if (cred != null) {
            return Krb5InitCredential.getInstance(this.name, cred)
                    .impersonate(name);
        } else {
            throw new GSSException(GSSException.FAILURE, -1,
                "Only an initiate credentials can impersonate");
        }
    }
}

sun/security/jgss/krb5/Krb5AcceptCredential.java

 

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