--- old/src/jdk.snmp/share/classes/com/sun/jmx/snmp/IPAcl/NetMaskImpl.java 2014-10-15 14:04:52.000000000 +0200 +++ /dev/null 2014-10-15 14:04:52.000000000 +0200 @@ -1,266 +0,0 @@ -/* - * Copyright (c) 2002, 2007, 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. - */ - -package com.sun.jmx.snmp.IPAcl; - -import static com.sun.jmx.defaults.JmxProperties.SNMP_LOGGER; - -import java.util.logging.Level; -import java.util.Vector; -import java.util.Enumeration; -import java.io.Serializable; -import java.net.UnknownHostException; -import java.net.InetAddress; - -import java.security.Principal; -import java.security.acl.Group; - - -/** - * This class is used to represent a subnet mask (a group of hosts matching the same - * IP mask). - * - * @see java.security.acl.Group - */ - -class NetMaskImpl extends PrincipalImpl implements Group, Serializable { - private static final long serialVersionUID = -7332541893877932896L; - - protected byte[] subnet = null; - protected int prefix = -1; - /** - * Constructs an empty group. - * @exception UnknownHostException Not implemented - */ - public NetMaskImpl () throws UnknownHostException { - } - - private byte[] extractSubNet(byte[] b) { - int addrLength = b.length; - byte[] subnet = null; - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), - "extractSubNet", "BINARY ARRAY :"); - StringBuilder sb = new StringBuilder(); - for(int i =0; i < addrLength; i++) { - sb.append((b[i] & 0xFF) + ":"); - } - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), - "extractSubNet", sb.toString()); - } - - // 8 is a byte size. Common to any InetAddress (V4 or V6). - int fullyCoveredByte = prefix / 8; - if(fullyCoveredByte == addrLength) { - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - "The mask is the complete address, strange..." + addrLength); - } - subnet = b; - return subnet; - } - if(fullyCoveredByte > addrLength) { - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - "The number of covered byte is longer than the address. BUG"); - } - throw new IllegalArgumentException("The number of covered byte is longer than the address."); - } - int partialyCoveredIndex = fullyCoveredByte; - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - "Partially covered index : " + partialyCoveredIndex); - } - byte toDeal = b[partialyCoveredIndex]; - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - "Partially covered byte : " + toDeal); - } - - // 8 is a byte size. Common to any InetAddress (V4 or V6). - int nbbits = prefix % 8; - int subnetSize = 0; - - if(nbbits == 0) - subnetSize = partialyCoveredIndex; - else - subnetSize = partialyCoveredIndex + 1; - - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - "Remains : " + nbbits); - } - - byte mask = 0; - for(int i = 0; i < nbbits; i++) { - mask |= (1 << (7 - i)); - } - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - "Mask value : " + (mask & 0xFF)); - } - - byte maskedValue = (byte) ((int)toDeal & (int)mask); - - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - "Masked byte : " + (maskedValue &0xFF)); - } - subnet = new byte[subnetSize]; - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - "Resulting subnet : "); - } - for(int i = 0; i < partialyCoveredIndex; i++) { - subnet[i] = b[i]; - - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - (subnet[i] & 0xFF) +":"); - } - } - - if(nbbits != 0) { - subnet[partialyCoveredIndex] = maskedValue; - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "extractSubNet", - "Last subnet byte : " + (subnet[partialyCoveredIndex] &0xFF)); - } - } - return subnet; - } - - /** - * Constructs a group using the specified subnet mask. - * THIS ALGORITHM IS V4 and V6 compatible. - * - * @exception UnknownHostException if the subnet mask cann't be built. - */ - public NetMaskImpl (String a, int prefix) throws UnknownHostException { - super(a); - this.prefix = prefix; - subnet = extractSubNet(getAddress().getAddress()); - } - - /** - * Adds the specified member to the group. - * - * @param p the principal to add to this group. - * @return true if the member was successfully added, false if the - * principal was already a member. - */ - public boolean addMember(Principal p) { - // we don't need to add members because the ip address is a subnet mask - return true; - } - - public int hashCode() { - return super.hashCode(); - } - - /** - * Compares this group to the specified object. Returns true if the object - * passed in matches the group represented. - * - * @param p the object to compare with. - * @return true if the object passed in matches the subnet mask, - * false otherwise. - */ - public boolean equals (Object p) { - if (p instanceof PrincipalImpl || p instanceof NetMaskImpl){ - PrincipalImpl received = (PrincipalImpl) p; - InetAddress addr = received.getAddress(); - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "equals", - "Received Address : " + addr); - } - byte[] recAddr = addr.getAddress(); - for(int i = 0; i < subnet.length; i++) { - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "equals", - "(recAddr[i]) : " + (recAddr[i] & 0xFF)); - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "equals", - "(recAddr[i] & subnet[i]) : " + - ((recAddr[i] & (int)subnet[i]) &0xFF) + - " subnet[i] : " + (subnet[i] &0xFF)); - } - if((recAddr[i] & subnet[i]) != subnet[i]) { - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "equals", - "FALSE"); - } - return false; - } - } - if (SNMP_LOGGER.isLoggable(Level.FINEST)) { - SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(), "equals", - "TRUE"); - } - return true; - } else - return false; - } - /** - * Returns true if the passed principal is a member of the group. - * - * @param p the principal whose membership is to be checked. - * @return true if the principal is a member of this group, false otherwise. - */ - public boolean isMember(Principal p) { - if ((p.hashCode() & super.hashCode()) == p.hashCode()) return true; - else return false; - } - - /** - * Returns an enumeration which contains the subnet mask. - * - * @return an enumeration which contains the subnet mask. - */ - public Enumeration members(){ - Vector v = new Vector(1); - v.addElement(this); - return v.elements(); - } - - /** - * Removes the specified member from the group. (Not implemented) - * - * @param p the principal to remove from this group. - * @return allways return true. - */ - public boolean removeMember(Principal p) { - return true; - } - - /** - * Prints a string representation of this group. - * - * @return a string representation of this group. - */ - public String toString() { - return ("NetMaskImpl :"+ super.getAddress().toString() + "/" + prefix); - } - -}