jdk/src/share/classes/sun/security/krb5/KrbTgsRep.java
author weijun
Thu, 24 Jun 2010 14:26:35 +0800
changeset 5975 076cd013e5e4
parent 5506 202f599c92aa
child 13247 74902cfeb9c6
permissions -rw-r--r--
6946669: SSL/Krb5 should not call EncryptedData.reset(data, false) Reviewed-by: xuelei
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/*
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 * Copyright (c) 2000, 2010, 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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/*
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 *
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 *  (C) Copyright IBM Corp. 1999 All Rights Reserved.
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 *  Copyright 1997 The Open Group Research Institute.  All rights reserved.
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 */
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package sun.security.krb5;
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import sun.security.krb5.internal.*;
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import sun.security.krb5.internal.crypto.KeyUsage;
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import sun.security.util.*;
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import java.io.IOException;
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/**
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 * This class encapsulates a TGS-REP that is sent from the KDC to the
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 * Kerberos client.
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 */
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public class KrbTgsRep extends KrbKdcRep {
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    private TGSRep rep;
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    private Credentials creds;
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    private Ticket secondTicket;
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    private static final boolean DEBUG = Krb5.DEBUG;
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    KrbTgsRep(byte[] ibuf, KrbTgsReq tgsReq)
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        throws KrbException, IOException {
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        DerValue ref = new DerValue(ibuf);
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        TGSReq req = tgsReq.getMessage();
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        TGSRep rep = null;
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        try {
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            rep = new TGSRep(ref);
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        } catch (Asn1Exception e) {
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            rep = null;
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            KRBError err = new KRBError(ref);
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            String errStr = err.getErrorString();
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            String eText = null; // pick up text sent by the server (if any)
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            if (errStr != null && errStr.length() > 0) {
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                if (errStr.charAt(errStr.length() - 1) == 0)
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                    eText = errStr.substring(0, errStr.length() - 1);
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                else
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                    eText = errStr;
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            }
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            KrbException ke;
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            if (eText == null) {
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                // no text sent from server
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                ke = new KrbException(err.getErrorCode());
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            } else {
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                // override default text with server text
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                ke = new KrbException(err.getErrorCode(), eText);
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            }
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            ke.initCause(e);
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            throw ke;
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        }
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        byte[] enc_tgs_rep_bytes = rep.encPart.decrypt(tgsReq.tgsReqKey,
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            tgsReq.usedSubkey() ? KeyUsage.KU_ENC_TGS_REP_PART_SUBKEY :
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            KeyUsage.KU_ENC_TGS_REP_PART_SESSKEY);
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        byte[] enc_tgs_rep_part = rep.encPart.reset(enc_tgs_rep_bytes);
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        ref = new DerValue(enc_tgs_rep_part);
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        EncTGSRepPart enc_part = new EncTGSRepPart(ref);
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        rep.ticket.sname.setRealm(rep.ticket.realm);
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        rep.encKDCRepPart = enc_part;
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        check(req, rep);
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        creds = new Credentials(rep.ticket,
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                                req.reqBody.cname,
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                                rep.ticket.sname,
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                                enc_part.key,
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                                enc_part.flags,
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                                enc_part.authtime,
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                                enc_part.starttime,
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                                enc_part.endtime,
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                                enc_part.renewTill,
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                                enc_part.caddr
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                                );
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        this.rep = rep;
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        this.creds = creds;
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        this.secondTicket = tgsReq.getSecondTicket();
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    }
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    /**
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     * Return the credentials that were contained in this KRB-TGS-REP.
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     */
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    public Credentials getCreds() {
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        return creds;
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    }
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    sun.security.krb5.internal.ccache.Credentials setCredentials() {
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        return new sun.security.krb5.internal.ccache.Credentials(rep, secondTicket);
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    }
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}