author | chegar |
Sun, 17 Aug 2014 15:54:13 +0100 | |
changeset 25859 | 3317bb8137f4 |
parent 9035 | jdk/src/share/classes/sun/security/krb5/internal/HostAddresses.java@1255eb81cc2f |
child 27946 | 9f99b93cbbb2 |
permissions | -rw-r--r-- |
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/* |
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7033660: Update copyright year to 2011 on any files changed in 2011
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* Copyright (c) 2000, 2011, 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.internal; |
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import sun.security.krb5.PrincipalName; |
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import sun.security.krb5.KrbException; |
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import sun.security.krb5.Asn1Exception; |
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import sun.security.util.*; |
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import java.util.Vector; |
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import java.util.ArrayList; |
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import java.net.InetAddress; |
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import java.net.Inet4Address; |
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import java.net.Inet6Address; |
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import java.net.UnknownHostException; |
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import java.io.IOException; |
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import sun.security.krb5.internal.ccache.CCacheOutputStream; |
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/** |
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* Implements the ASN.1 HostAddresses type. |
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* |
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* <xmp> |
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* HostAddresses -- NOTE: subtly different from rfc1510, |
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* -- but has a value mapping and encodes the same |
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* ::= SEQUENCE OF HostAddress |
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* |
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* HostAddress ::= SEQUENCE { |
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* addr-type [0] Int32, |
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* address [1] OCTET STRING |
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* } |
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* </xmp> |
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* |
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* <p> |
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* This definition reflects the Network Working Group RFC 4120 |
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* specification available at |
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* <a href="http://www.ietf.org/rfc/rfc4120.txt"> |
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* http://www.ietf.org/rfc/rfc4120.txt</a>. |
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*/ |
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public class HostAddresses implements Cloneable { |
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private static boolean DEBUG = sun.security.krb5.internal.Krb5.DEBUG; |
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private HostAddress[] addresses = null; |
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private volatile int hashCode = 0; |
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public HostAddresses(HostAddress[] new_addresses) throws IOException { |
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if (new_addresses != null) { |
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addresses = new HostAddress[new_addresses.length]; |
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for (int i = 0; i < new_addresses.length; i++) { |
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if (new_addresses[i] == null) { |
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throw new IOException("Cannot create a HostAddress"); |
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} else { |
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addresses[i] = (HostAddress)new_addresses[i].clone(); |
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} |
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} |
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} |
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} |
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public HostAddresses() throws UnknownHostException { |
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addresses = new HostAddress[1]; |
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addresses[0] = new HostAddress(); |
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} |
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private HostAddresses(int dummy) {} |
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public HostAddresses(PrincipalName serverPrincipal) |
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throws UnknownHostException, KrbException { |
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String[] components = serverPrincipal.getNameStrings(); |
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if (serverPrincipal.getNameType() != PrincipalName.KRB_NT_SRV_HST || |
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components.length < 2) |
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throw new KrbException(Krb5.KRB_ERR_GENERIC, "Bad name"); |
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String host = components[1]; |
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InetAddress addr[] = InetAddress.getAllByName(host); |
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HostAddress hAddrs[] = new HostAddress[addr.length]; |
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for (int i = 0; i < addr.length; i++) { |
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hAddrs[i] = new HostAddress(addr[i]); |
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} |
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addresses = hAddrs; |
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} |
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public Object clone() { |
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HostAddresses new_hostAddresses = new HostAddresses(0); |
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if (addresses != null) { |
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new_hostAddresses.addresses = new HostAddress[addresses.length]; |
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for (int i = 0; i < addresses.length; i++) { |
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new_hostAddresses.addresses[i] = |
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(HostAddress)addresses[i].clone(); |
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} |
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} |
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return new_hostAddresses; |
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} |
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public boolean inList(HostAddress addr) { |
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if (addresses != null) { |
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for (int i = 0; i < addresses.length; i++) |
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if (addresses[i].equals(addr)) |
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return true; |
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} |
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return false; |
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} |
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public int hashCode() { |
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if (hashCode == 0) { |
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int result = 17; |
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if (addresses != null) { |
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for (int i=0; i < addresses.length; i++) { |
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result = 37*result + addresses[i].hashCode(); |
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} |
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} |
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hashCode = result; |
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} |
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return hashCode; |
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} |
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public boolean equals(Object obj) { |
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if (this == obj) { |
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return true; |
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} |
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if (!(obj instanceof HostAddresses)) { |
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return false; |
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} |
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HostAddresses addrs = (HostAddresses)obj; |
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if ((addresses == null && addrs.addresses != null) || |
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(addresses != null && addrs.addresses == null)) |
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return false; |
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if (addresses != null && addrs.addresses != null) { |
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if (addresses.length != addrs.addresses.length) |
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return false; |
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for (int i = 0; i < addresses.length; i++) |
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if (!addresses[i].equals(addrs.addresses[i])) |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Constructs a new <code>HostAddresses</code> object. |
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* @param encoding a single DER-encoded value. |
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* @exception Asn1Exception if an error occurs while decoding an |
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* ASN1 encoded data. |
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* @exception IOException if an I/O error occurs while reading |
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* encoded data. |
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*/ |
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public HostAddresses(DerValue encoding) |
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throws Asn1Exception, IOException { |
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Vector<HostAddress> tempAddresses = new Vector<>(); |
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DerValue der = null; |
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while (encoding.getData().available() > 0) { |
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der = encoding.getData().getDerValue(); |
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tempAddresses.addElement(new HostAddress(der)); |
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} |
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if (tempAddresses.size() > 0) { |
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addresses = new HostAddress[tempAddresses.size()]; |
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tempAddresses.copyInto(addresses); |
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} |
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} |
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/** |
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* Encodes a <code>HostAddresses</code> object. |
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* @return byte array of encoded <code>HostAddresses</code> object. |
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* @exception Asn1Exception if an error occurs while decoding an |
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* ASN1 encoded data. |
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* @exception IOException if an I/O error occurs while reading |
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* encoded data. |
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*/ |
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public byte[] asn1Encode() throws Asn1Exception, IOException { |
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DerOutputStream bytes = new DerOutputStream(); |
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DerOutputStream temp = new DerOutputStream(); |
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if (addresses != null && addresses.length > 0) { |
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for (int i = 0; i < addresses.length; i++) |
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bytes.write(addresses[i].asn1Encode()); |
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} |
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temp.write(DerValue.tag_Sequence, bytes); |
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return temp.toByteArray(); |
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} |
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/** |
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* Parse (unmarshal) a <code>HostAddresses</code> from a DER input stream. |
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* This form |
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* parsing might be used when expanding a value which is part of |
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* a constructed sequence and uses explicitly tagged type. |
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* |
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* @exception Asn1Exception if an Asn1Exception occurs. |
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* @param data the Der input stream value, which contains one or more |
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* marshaled value. |
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* @param explicitTag tag number. |
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* @param optional indicates if this data field is optional. |
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* @return an instance of <code>HostAddresses</code>. |
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*/ |
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public static HostAddresses parse(DerInputStream data, |
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byte explicitTag, boolean optional) |
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throws Asn1Exception, IOException { |
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if ((optional) && |
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(((byte)data.peekByte() & (byte)0x1F) != explicitTag)) |
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return null; |
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DerValue der = data.getDerValue(); |
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if (explicitTag != (der.getTag() & (byte)0x1F)) { |
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throw new Asn1Exception(Krb5.ASN1_BAD_ID); |
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} else { |
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DerValue subDer = der.getData().getDerValue(); |
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return new HostAddresses(subDer); |
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} |
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} |
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/** |
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* Writes data field values in <code>HostAddresses</code> in FCC |
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* format to a <code>CCacheOutputStream</code>. |
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* |
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* @param cos a <code>CCacheOutputStream</code> to be written to. |
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* @exception IOException if an I/O exception occurs. |
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* @see sun.security.krb5.internal.ccache.CCacheOutputStream |
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*/ |
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public void writeAddrs(CCacheOutputStream cos) throws IOException { |
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cos.write32(addresses.length); |
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for (int i = 0; i < addresses.length; i++) { |
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cos.write16(addresses[i].addrType); |
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cos.write32(addresses[i].address.length); |
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cos.write(addresses[i].address, 0, |
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addresses[i].address.length); |
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} |
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} |
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public InetAddress[] getInetAddresses() { |
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if (addresses == null || addresses.length == 0) |
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return null; |
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ArrayList<InetAddress> ipAddrs = new ArrayList<>(addresses.length); |
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for (int i = 0; i < addresses.length; i++) { |
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try { |
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if ((addresses[i].addrType == Krb5.ADDRTYPE_INET) || |
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(addresses[i].addrType == Krb5.ADDRTYPE_INET6)) { |
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ipAddrs.add(addresses[i].getInetAddress()); |
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} |
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} catch (java.net.UnknownHostException e) { |
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// Should not happen since IP address given |
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return null; |
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} |
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} |
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InetAddress[] retVal = new InetAddress[ipAddrs.size()]; |
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return ipAddrs.toArray(retVal); |
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} |
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/** |
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* Returns all the IP addresses of the local host. |
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*/ |
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public static HostAddresses getLocalAddresses() throws IOException |
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{ |
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String hostname = null; |
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InetAddress[] inetAddresses = null; |
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try { |
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InetAddress localHost = InetAddress.getLocalHost(); |
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hostname = localHost.getHostName(); |
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inetAddresses = InetAddress.getAllByName(hostname); |
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HostAddress[] hAddresses = new HostAddress[inetAddresses.length]; |
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for (int i = 0; i < inetAddresses.length; i++) |
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{ |
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hAddresses[i] = new HostAddress(inetAddresses[i]); |
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} |
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if (DEBUG) { |
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System.out.println(">>> KrbKdcReq local addresses for " |
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+ hostname + " are: "); |
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for (int i = 0; i < inetAddresses.length; i++) { |
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System.out.println("\n\t" + inetAddresses[i]); |
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if (inetAddresses[i] instanceof Inet4Address) |
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System.out.println("IPv4 address"); |
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if (inetAddresses[i] instanceof Inet6Address) |
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System.out.println("IPv6 address"); |
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} |
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} |
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return (new HostAddresses(hAddresses)); |
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} catch (Exception exc) { |
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throw new IOException(exc.toString()); |
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} |
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} |
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/** |
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* Creates a new HostAddresses instance from the supplied list |
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* of InetAddresses. |
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*/ |
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public HostAddresses(InetAddress[] inetAddresses) |
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{ |
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if (inetAddresses == null) |
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{ |
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addresses = null; |
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return; |
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} |
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addresses = new HostAddress[inetAddresses.length]; |
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for (int i = 0; i < inetAddresses.length; i++) |
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addresses[i] = new HostAddress(inetAddresses[i]); |
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} |
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} |