--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.security.jgss/share/classes/sun/security/krb5/internal/HostAddress.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,306 @@
+/*
+ * Copyright (c) 2000, 2006, 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.
+ */
+
+/*
+ *
+ * (C) Copyright IBM Corp. 1999 All Rights Reserved.
+ * Copyright 1997 The Open Group Research Institute. All rights reserved.
+ */
+
+package sun.security.krb5.internal;
+
+import sun.security.krb5.Config;
+import sun.security.krb5.Asn1Exception;
+import sun.security.util.*;
+import java.net.InetAddress;
+import java.net.Inet4Address;
+import java.net.Inet6Address;
+import java.net.UnknownHostException;
+import java.io.IOException;
+import java.util.Arrays;
+
+/**
+ * Implements the ASN.1 HostAddress type.
+ *
+ * <pre>{@code
+ * HostAddress ::= SEQUENCE {
+ * addr-type [0] Int32,
+ * address [1] OCTET STRING
+ * }
+ * }</pre>
+ *
+ * <p>
+ * This definition reflects the Network Working Group RFC 4120
+ * specification available at
+ * <a href="http://www.ietf.org/rfc/rfc4120.txt">
+ * http://www.ietf.org/rfc/rfc4120.txt</a>.
+ */
+
+public class HostAddress implements Cloneable {
+ int addrType;
+ byte[] address = null;
+
+ private static InetAddress localInetAddress; //caches local inet address
+ private static final boolean DEBUG = sun.security.krb5.internal.Krb5.DEBUG;
+ private volatile int hashCode = 0;
+
+ private HostAddress(int dummy) {}
+
+ public Object clone() {
+ HostAddress new_hostAddress = new HostAddress(0);
+ new_hostAddress.addrType = addrType;
+ if (address != null) {
+ new_hostAddress.address = address.clone();
+ }
+ return new_hostAddress;
+ }
+
+
+ public int hashCode() {
+ if (hashCode == 0) {
+ int result = 17;
+ result = 37*result + addrType;
+ if (address != null) {
+ for (int i=0; i < address.length; i++) {
+ result = 37*result + address[i];
+ }
+ }
+ hashCode = result;
+ }
+ return hashCode;
+
+ }
+
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+
+ if (!(obj instanceof HostAddress)) {
+ return false;
+ }
+
+ HostAddress h = (HostAddress)obj;
+ if (addrType != h.addrType ||
+ (address != null && h.address == null) ||
+ (address == null && h.address != null))
+ return false;
+ if (address != null && h.address != null) {
+ if (address.length != h.address.length)
+ return false;
+ for (int i = 0; i < address.length; i++)
+ if (address[i] != h.address[i])
+ return false;
+ }
+ return true;
+ }
+
+ private static synchronized InetAddress getLocalInetAddress()
+ throws UnknownHostException {
+
+ if (localInetAddress == null) {
+ localInetAddress = InetAddress.getLocalHost();
+ }
+ if (localInetAddress == null) {
+ throw new UnknownHostException();
+ }
+ return (localInetAddress);
+ }
+
+ /**
+ * Gets the InetAddress of this HostAddress.
+ * @return the IP address for this specified host.
+ * @exception UnknownHostException if no IP address for the host could be found.
+ *
+ */
+ public InetAddress getInetAddress() throws UnknownHostException {
+ // the type of internet addresses is 2.
+ if (addrType == Krb5.ADDRTYPE_INET ||
+ addrType == Krb5.ADDRTYPE_INET6) {
+ return (InetAddress.getByAddress(address));
+ } else {
+ // if it is other type (ISO address, XNS address, etc)
+ return null;
+ }
+ }
+
+ private int getAddrType(InetAddress inetAddress) {
+ int addressType = 0;
+ if (inetAddress instanceof Inet4Address)
+ addressType = Krb5.ADDRTYPE_INET;
+ else if (inetAddress instanceof Inet6Address)
+ addressType = Krb5.ADDRTYPE_INET6;
+ return (addressType);
+ }
+
+ // implicit default not in Config.java
+ public HostAddress() throws UnknownHostException {
+ InetAddress inetAddress = getLocalInetAddress();
+ addrType = getAddrType(inetAddress);
+ address = inetAddress.getAddress();
+ }
+
+ /**
+ * Creates a HostAddress from the specified address and address type.
+ *
+ * @param new_addrType the value of the address type which matches the defined
+ * address family constants in the Berkeley Standard
+ * Distributions of Unix.
+ * @param new_address network address.
+ * @exception KrbApErrException if address type and address length do not match defined value.
+ *
+ */
+ public HostAddress(int new_addrType, byte[] new_address)
+ throws KrbApErrException, UnknownHostException {
+ switch(new_addrType) {
+ case Krb5.ADDRTYPE_INET: //Internet address
+ if (new_address.length != 4)
+ throw new KrbApErrException(0, "Invalid Internet address");
+ break;
+ case Krb5.ADDRTYPE_CHAOS:
+ if (new_address.length != 2) //CHAOSnet address
+ throw new KrbApErrException(0, "Invalid CHAOSnet address");
+ break;
+ case Krb5.ADDRTYPE_ISO: // ISO address
+ break;
+ case Krb5.ADDRTYPE_IPX: // XNS address
+ if (new_address.length != 6)
+ throw new KrbApErrException(0, "Invalid XNS address");
+ break;
+ case Krb5.ADDRTYPE_APPLETALK: //AppleTalk DDP address
+ if (new_address.length != 3)
+ throw new KrbApErrException(0, "Invalid DDP address");
+ break;
+ case Krb5.ADDRTYPE_DECNET: //DECnet Phase IV address
+ if (new_address.length != 2)
+ throw new KrbApErrException(0, "Invalid DECnet Phase IV address");
+ break;
+ case Krb5.ADDRTYPE_INET6: //Internet IPv6 address
+ if (new_address.length != 16)
+ throw new KrbApErrException(0, "Invalid Internet IPv6 address");
+ break;
+ }
+
+ addrType = new_addrType;
+ if (new_address != null) {
+ address = new_address.clone();
+ }
+ if (DEBUG) {
+ if (addrType == Krb5.ADDRTYPE_INET ||
+ addrType == Krb5.ADDRTYPE_INET6) {
+ System.out.println("Host address is " +
+ InetAddress.getByAddress(address));
+ }
+ }
+ }
+
+ public HostAddress(InetAddress inetAddress) {
+ addrType = getAddrType(inetAddress);
+ address = inetAddress.getAddress();
+ }
+
+ /**
+ * Constructs a host address from a single DER-encoded value.
+ * @param encoding a single DER-encoded value.
+ * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
+ * @exception IOException if an I/O error occurs while reading encoded data.
+ *
+ */
+ public HostAddress(DerValue encoding) throws Asn1Exception, IOException {
+ DerValue der = encoding.getData().getDerValue();
+ if ((der.getTag() & (byte)0x1F) == (byte)0x00) {
+ addrType = der.getData().getBigInteger().intValue();
+ }
+ else
+ throw new Asn1Exception(Krb5.ASN1_BAD_ID);
+ der = encoding.getData().getDerValue();
+ if ((der.getTag() & (byte)0x1F) == (byte)0x01) {
+ address = der.getData().getOctetString();
+ }
+ else
+ throw new Asn1Exception(Krb5.ASN1_BAD_ID);
+ if (encoding.getData().available() > 0)
+ throw new Asn1Exception(Krb5.ASN1_BAD_ID);
+ }
+
+ /**
+ * Encodes a HostAddress object.
+ * @return a byte array of encoded HostAddress object.
+ * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
+ * @exception IOException if an I/O error occurs while reading encoded data.
+ *
+ */
+
+ public byte[] asn1Encode() throws Asn1Exception, IOException {
+ DerOutputStream bytes = new DerOutputStream();
+ DerOutputStream temp = new DerOutputStream();
+ temp.putInteger(this.addrType);
+ bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp);
+ temp = new DerOutputStream();
+ temp.putOctetString(address);
+ bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), temp);
+ temp = new DerOutputStream();
+ temp.write(DerValue.tag_Sequence, bytes);
+ return temp.toByteArray();
+ }
+
+ /**
+ * Parses (unmarshal) a host address from a DER input stream. This form
+ * parsing might be used when expanding a value which is part of
+ * a constructed sequence and uses explicitly tagged type.
+ *
+ * @exception Asn1Exception on error.
+ * @exception IOException if an I/O error occurs while reading encoded data.
+ * @param data the Der input stream value, which contains one or more marshaled value.
+ * @param explicitTag tag number.
+ * @param optional indicates if this data field is optional
+ * @return an instance of HostAddress.
+ *
+ */
+ public static HostAddress parse(DerInputStream data, byte explicitTag,
+ boolean optional)
+ throws Asn1Exception, IOException{
+ if ((optional) &&
+ (((byte)data.peekByte() & (byte)0x1F) != explicitTag)) {
+ return null;
+ }
+ DerValue der = data.getDerValue();
+ if (explicitTag != (der.getTag() & (byte)0x1F)) {
+ throw new Asn1Exception(Krb5.ASN1_BAD_ID);
+ }
+ else {
+ DerValue subDer = der.getData().getDerValue();
+ return new HostAddress(subDer);
+ }
+ }
+
+ @Override
+ public String toString() {
+ StringBuilder sb = new StringBuilder();
+ sb.append(Arrays.toString(address));
+ sb.append('(').append(addrType).append(')');
+ return sb.toString();
+ }
+}