mirror of
https://github.com/apache/cloudstack
synced 2026-08-02 21:38:30 +00:00
1424 lines
48 KiB
Java
Executable File
1424 lines
48 KiB
Java
Executable File
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package com.cloud.utils.net;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.lang.reflect.Array;
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import java.math.BigInteger;
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import java.net.InetAddress;
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import java.net.InterfaceAddress;
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import java.net.NetworkInterface;
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import java.net.SocketException;
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import java.net.URI;
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import java.net.UnknownHostException;
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import java.util.ArrayList;
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import java.util.Formatter;
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import java.util.List;
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import java.util.Random;
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import java.util.Set;
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import java.util.SortedSet;
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import java.util.StringTokenizer;
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import java.util.TreeSet;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import org.apache.commons.lang.SystemUtils;
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import org.apache.log4j.Logger;
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import com.googlecode.ipv6.IPv6Address;
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import com.googlecode.ipv6.IPv6AddressRange;
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import com.googlecode.ipv6.IPv6Network;
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import com.cloud.utils.IteratorUtil;
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import com.cloud.utils.Pair;
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import com.cloud.utils.script.Script;
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public class NetUtils {
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protected final static Logger s_logger = Logger.getLogger(NetUtils.class);
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public final static String HTTP_PORT = "80";
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public final static int VPN_PORT = 500;
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public final static int VPN_NATT_PORT = 4500;
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public final static int VPN_L2TP_PORT = 1701;
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public final static String UDP_PROTO = "udp";
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public final static String TCP_PROTO = "tcp";
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public final static String ANY_PROTO = "any";
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public final static String ICMP_PROTO = "icmp";
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public final static String ALL_PROTO = "all";
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public final static String ALL_CIDRS = "0.0.0.0/0";
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public final static int PORT_RANGE_MIN = 0;
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public final static int PORT_RANGE_MAX = 65535;
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public final static int DEFAULT_AUTOSCALE_VM_DESTROY_TIME = 2 * 60; // Grace period before Vm is destroyed
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public final static int DEFAULT_AUTOSCALE_POLICY_INTERVAL_TIME = 30;
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public final static int DEFAULT_AUTOSCALE_POLICY_QUIET_TIME = 5 * 60;
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private final static Random _rand = new Random(System.currentTimeMillis());
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public static long createSequenceBasedMacAddress(long macAddress) {
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return macAddress | 0x060000000000l | (((long)_rand.nextInt(32768) << 25) & 0x00fffe000000l);
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}
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public static String getHostName() {
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try {
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InetAddress localAddr = InetAddress.getLocalHost();
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if (localAddr != null) {
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return localAddr.getHostName();
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}
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} catch (UnknownHostException e) {
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s_logger.warn("UnknownHostException when trying to get host name. ", e);
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}
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return "localhost";
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}
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public static InetAddress getLocalInetAddress() {
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try {
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return InetAddress.getLocalHost();
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} catch (UnknownHostException e) {
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s_logger.warn("UnknownHostException in getLocalInetAddress().", e);
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return null;
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}
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}
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public static String resolveToIp(String host) {
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try {
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InetAddress addr = InetAddress.getByName(host);
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return ipFromInetAddress(addr);
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} catch (UnknownHostException e) {
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s_logger.warn("Unable to resolve " + host + " to IP due to UnknownHostException");
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return null;
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}
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}
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public static InetAddress[] getAllLocalInetAddresses() {
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List<InetAddress> addrList = new ArrayList<InetAddress>();
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try {
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for (NetworkInterface ifc : IteratorUtil.enumerationAsIterable(NetworkInterface.getNetworkInterfaces())) {
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if (ifc.isUp() && !ifc.isVirtual()) {
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for (InetAddress addr : IteratorUtil.enumerationAsIterable(ifc.getInetAddresses())) {
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addrList.add(addr);
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}
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}
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}
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} catch (SocketException e) {
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s_logger.warn("SocketException in getAllLocalInetAddresses().", e);
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}
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InetAddress[] addrs = new InetAddress[addrList.size()];
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if (addrList.size() > 0) {
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System.arraycopy(addrList.toArray(), 0, addrs, 0, addrList.size());
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}
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return addrs;
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}
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public static String[] getLocalCidrs() {
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String defaultHostIp = getDefaultHostIp();
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List<String> cidrList = new ArrayList<String>();
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try {
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for (NetworkInterface ifc : IteratorUtil.enumerationAsIterable(NetworkInterface.getNetworkInterfaces())) {
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if (ifc.isUp() && !ifc.isVirtual() && !ifc.isLoopback()) {
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for (InterfaceAddress address : ifc.getInterfaceAddresses()) {
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InetAddress addr = address.getAddress();
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int prefixLength = address.getNetworkPrefixLength();
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if (prefixLength < 32 && prefixLength > 0) {
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String ip = ipFromInetAddress(addr);
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if (ip.equalsIgnoreCase(defaultHostIp))
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cidrList.add(ipAndNetMaskToCidr(ip, getCidrNetmask(prefixLength)));
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}
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}
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}
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}
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} catch (SocketException e) {
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s_logger.warn("UnknownHostException in getLocalCidrs().", e);
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}
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return cidrList.toArray(new String[0]);
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}
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private static boolean isWindows() {
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String os = System.getProperty("os.name");
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if (os != null && os.startsWith("Windows"))
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return true;
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return false;
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}
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public static String getDefaultHostIp() {
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if (SystemUtils.IS_OS_WINDOWS) {
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Pattern pattern = Pattern.compile("\\s*0.0.0.0\\s*0.0.0.0\\s*(\\S*)\\s*(\\S*)\\s*");
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try {
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Process result = Runtime.getRuntime().exec("route print -4");
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BufferedReader output = new BufferedReader
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(new InputStreamReader(result.getInputStream()));
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String line = output.readLine();
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while (line != null) {
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Matcher matcher = pattern.matcher(line);
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if (matcher.find()) {
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return matcher.group(2);
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}
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line = output.readLine();
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}
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} catch (Exception e) {
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}
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return null;
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} else {
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NetworkInterface nic = null;
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String pubNic = getDefaultEthDevice();
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if (pubNic == null) {
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return null;
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}
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try {
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nic = NetworkInterface.getByName(pubNic);
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} catch (final SocketException e) {
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return null;
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}
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String[] info = NetUtils.getNetworkParams(nic);
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return info[0];
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}
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}
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public static String getDefaultEthDevice() {
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if (SystemUtils.IS_OS_MAC) {
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String defDev = Script.runSimpleBashScript("/sbin/route -n get default 2> /dev/null | grep interface | awk '{print $2}'");
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return defDev;
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}
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String defaultRoute = Script.runSimpleBashScript("/sbin/route | grep default");
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if (defaultRoute == null) {
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return null;
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}
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String[] defaultRouteList = defaultRoute.split("\\s+");
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if (defaultRouteList.length != 8) {
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return null;
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}
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return defaultRouteList[7];
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}
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public static InetAddress getFirstNonLoopbackLocalInetAddress() {
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InetAddress[] addrs = getAllLocalInetAddresses();
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if (addrs != null) {
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for (InetAddress addr : addrs) {
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if (s_logger.isInfoEnabled()) {
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s_logger.info("Check local InetAddress : " + addr.toString() + ", total count :" + addrs.length);
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}
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if (!addr.isLoopbackAddress()) {
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return addr;
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}
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}
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}
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s_logger.warn("Unable to determine a non-loopback address, local inet address count :" + addrs.length);
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return null;
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}
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public static InetAddress[] getInterfaceInetAddresses(String ifName) {
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List<InetAddress> addrList = new ArrayList<InetAddress>();
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try {
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for (NetworkInterface ifc : IteratorUtil.enumerationAsIterable(NetworkInterface.getNetworkInterfaces())) {
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if (ifc.isUp() && !ifc.isVirtual() && ifc.getName().equals(ifName)) {
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for (InetAddress addr : IteratorUtil.enumerationAsIterable(ifc.getInetAddresses())) {
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addrList.add(addr);
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}
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}
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}
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} catch (SocketException e) {
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s_logger.warn("SocketException in getAllLocalInetAddresses().", e);
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}
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InetAddress[] addrs = new InetAddress[addrList.size()];
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if (addrList.size() > 0) {
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System.arraycopy(addrList.toArray(), 0, addrs, 0, addrList.size());
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}
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return addrs;
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}
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public static String getLocalIPString() {
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InetAddress addr = getLocalInetAddress();
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if (addr != null) {
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return ipFromInetAddress(addr);
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}
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return "127.0.0.1";
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}
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public static String ipFromInetAddress(InetAddress addr) {
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assert (addr != null);
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byte[] ipBytes = addr.getAddress();
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StringBuffer sb = new StringBuffer();
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sb.append(ipBytes[0] & 0xff).append(".");
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sb.append(ipBytes[1] & 0xff).append(".");
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sb.append(ipBytes[2] & 0xff).append(".");
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sb.append(ipBytes[3] & 0xff);
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return sb.toString();
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}
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public static boolean isLocalAddress(InetAddress addr) {
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InetAddress[] addrs = getAllLocalInetAddresses();
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if (addrs != null) {
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for (InetAddress self : addrs) {
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if (self.equals(addr)) {
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return true;
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}
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}
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}
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return false;
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}
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public static boolean isLocalAddress(String strAddress) {
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InetAddress addr;
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try {
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addr = InetAddress.getByName(strAddress);
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return isLocalAddress(addr);
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} catch (UnknownHostException e) {
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}
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return false;
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}
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public static String getMacAddress(InetAddress address) {
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StringBuffer sb = new StringBuffer();
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Formatter formatter = new Formatter(sb);
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try {
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NetworkInterface ni = NetworkInterface.getByInetAddress(address);
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byte[] mac = ni.getHardwareAddress();
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for (int i = 0; i < mac.length; i++) {
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formatter.format("%02X%s", mac[i], (i < mac.length - 1) ? ":" : "");
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}
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} catch (SocketException e) {
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s_logger.error("SocketException when trying to retrieve MAC address", e);
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}
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return sb.toString();
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}
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public static long getMacAddressAsLong(InetAddress address) {
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long macAddressAsLong = 0;
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try {
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NetworkInterface ni = NetworkInterface.getByInetAddress(address);
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byte[] mac = ni.getHardwareAddress();
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for (int i = 0; i < mac.length; i++) {
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macAddressAsLong |= ((long)(mac[i] & 0xff) << (mac.length - i - 1) * 8);
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}
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} catch (SocketException e) {
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s_logger.error("SocketException when trying to retrieve MAC address", e);
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}
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return macAddressAsLong;
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}
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public static boolean ipRangesOverlap(String startIp1, String endIp1, String startIp2, String endIp2) {
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long startIp1Long = ip2Long(startIp1);
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long endIp1Long = startIp1Long;
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if (endIp1 != null) {
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endIp1Long = ip2Long(endIp1);
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}
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long startIp2Long = ip2Long(startIp2);
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long endIp2Long = startIp2Long;
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if (endIp2 != null) {
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endIp2Long = ip2Long(endIp2);
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}
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if (startIp1Long == startIp2Long || startIp1Long == endIp2Long || endIp1Long == startIp2Long || endIp1Long == endIp2Long) {
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return true;
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} else if (startIp1Long > startIp2Long && startIp1Long < endIp2Long) {
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return true;
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} else if (endIp1Long > startIp2Long && endIp1Long < endIp2Long) {
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return true;
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} else if (startIp2Long > startIp1Long && startIp2Long < endIp1Long) {
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return true;
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} else if (endIp2Long > startIp1Long && endIp2Long < endIp1Long) {
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return true;
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} else {
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return false;
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}
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}
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public static long ip2Long(String ip) {
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String[] tokens = ip.split("[.]");
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assert (tokens.length == 4);
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long result = 0;
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for (int i = 0; i < tokens.length; i++) {
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try {
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result = (result << 8) | Integer.parseInt(tokens[i]);
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} catch (NumberFormatException e) {
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throw new RuntimeException("Incorrect number", e);
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}
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}
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return result;
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}
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public static String long2Ip(long ip) {
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StringBuilder result = new StringBuilder(15);
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result.append((ip >> 24 & 0xff)).append(".");
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result.append((ip >> 16 & 0xff)).append(".");
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result.append((ip >> 8 & 0xff)).append(".");
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result.append(ip & 0xff);
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return result.toString();
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}
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public static long mac2Long(String macAddress) {
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String[] tokens = macAddress.split(":");
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assert (tokens.length == 6);
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long result = 0;
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for (int i = 0; i < tokens.length; i++) {
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result = result << 8;
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result |= Integer.parseInt(tokens[i], 16);
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}
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return result;
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}
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public static String[] getNicParams(String nicName) {
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try {
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NetworkInterface nic = NetworkInterface.getByName(nicName);
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return getNetworkParams(nic);
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} catch (SocketException e) {
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return null;
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}
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}
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public static String[] getNetworkParams(NetworkInterface nic) {
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List<InterfaceAddress> addrs = nic.getInterfaceAddresses();
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if (addrs == null || addrs.size() == 0) {
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return null;
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}
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InterfaceAddress addr = null;
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for (InterfaceAddress iaddr : addrs) {
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InetAddress inet = iaddr.getAddress();
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if (!inet.isLinkLocalAddress() && !inet.isLoopbackAddress() && !inet.isMulticastAddress() && inet.getAddress().length == 4) {
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addr = iaddr;
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break;
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}
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}
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if (addr == null) {
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return null;
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}
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String[] result = new String[3];
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result[0] = addr.getAddress().getHostAddress();
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try {
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byte[] mac = nic.getHardwareAddress();
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result[1] = byte2Mac(mac);
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} catch (Exception e) {
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}
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result[2] = prefix2Netmask(addr.getNetworkPrefixLength());
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return result;
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}
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public static String prefix2Netmask(short prefix) {
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long addr = 0;
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for (int i = 0; i < prefix; i++) {
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addr = addr | (1 << (31 - i));
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}
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return long2Ip(addr);
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}
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public static String byte2Mac(byte[] m) {
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StringBuilder result = new StringBuilder(17);
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Formatter formatter = new Formatter(result);
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formatter.format("%02x:%02x:%02x:%02x:%02x:%02x", m[0], m[1], m[2], m[3], m[4], m[5]);
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return result.toString();
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}
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public static String long2Mac(long macAddress) {
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StringBuilder result = new StringBuilder(17);
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Formatter formatter = new Formatter(result);
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formatter.format("%02x:%02x:%02x:%02x:%02x:%02x", (macAddress >> 40) & 0xff, (macAddress >> 32) & 0xff, (macAddress >> 24) & 0xff, (macAddress >> 16) & 0xff,
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(macAddress >> 8) & 0xff,
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(macAddress & 0xff));
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return result.toString();
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}
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public static boolean isValidPrivateIp(String ipAddress, String guestIPAddress) {
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InetAddress privIp = parseIpAddress(ipAddress);
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if (privIp == null) {
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return false;
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}
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if (!privIp.isSiteLocalAddress()) {
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return false;
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}
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String firstGuestOctet = "10";
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if (guestIPAddress != null && !guestIPAddress.isEmpty()) {
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String[] guestIPList = guestIPAddress.split("\\.");
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firstGuestOctet = guestIPList[0];
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}
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|
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String[] ipList = ipAddress.split("\\.");
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if (!ipList[0].equals(firstGuestOctet)) {
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return false;
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}
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return true;
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}
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public static boolean isSiteLocalAddress(String ipAddress) {
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if (ipAddress == null) {
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return false;
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} else {
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InetAddress ip = parseIpAddress(ipAddress);
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return ip.isSiteLocalAddress();
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}
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}
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public static boolean validIpRange(String startIP, String endIP) {
|
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if (endIP == null || endIP.isEmpty()) {
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return true;
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}
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|
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long startIPLong = NetUtils.ip2Long(startIP);
|
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long endIPLong = NetUtils.ip2Long(endIP);
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return (startIPLong <= endIPLong);
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}
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|
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public static boolean isValidIp(final String ip) {
|
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final String[] ipAsList = ip.split("\\.");
|
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|
|
// The IP address must have four octets
|
|
if (Array.getLength(ipAsList) != 4) {
|
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return false;
|
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}
|
|
|
|
for (int i = 0; i < 4; i++) {
|
|
// Each octet must be an integer
|
|
final String octetString = ipAsList[i];
|
|
int octet;
|
|
try {
|
|
octet = Integer.parseInt(octetString);
|
|
} catch (final Exception e) {
|
|
return false;
|
|
}
|
|
// Each octet must be between 0 and 255, inclusive
|
|
if (octet < 0 || octet > 255) {
|
|
return false;
|
|
}
|
|
|
|
// Each octetString must have between 1 and 3 characters
|
|
if (octetString.length() < 1 || octetString.length() > 3) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// IP is good, return true
|
|
return true;
|
|
}
|
|
|
|
public static boolean isValidCIDR(final String cidr) {
|
|
if (cidr == null || cidr.isEmpty()) {
|
|
return false;
|
|
}
|
|
String[] cidrPair = cidr.split("\\/");
|
|
if (cidrPair.length != 2) {
|
|
return false;
|
|
}
|
|
String cidrAddress = cidrPair[0];
|
|
String cidrSize = cidrPair[1];
|
|
if (!isValidIp(cidrAddress)) {
|
|
return false;
|
|
}
|
|
int cidrSizeNum = -1;
|
|
|
|
try {
|
|
cidrSizeNum = Integer.parseInt(cidrSize);
|
|
} catch (Exception e) {
|
|
return false;
|
|
}
|
|
|
|
if (cidrSizeNum < 0 || cidrSizeNum > 32) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public static boolean isValidNetmask(String netmask) {
|
|
if (!isValidIp(netmask)) {
|
|
return false;
|
|
}
|
|
|
|
long ip = ip2Long(netmask);
|
|
int count = 0;
|
|
boolean finished = false;
|
|
for (int i = 31; i >= 0; i--) {
|
|
if (((ip >> i) & 0x1) == 0) {
|
|
finished = true;
|
|
} else {
|
|
if (finished) {
|
|
return false;
|
|
}
|
|
count += 1;
|
|
}
|
|
}
|
|
|
|
if (count == 0) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private static InetAddress parseIpAddress(String address) {
|
|
StringTokenizer st = new StringTokenizer(address, ".");
|
|
byte[] bytes = new byte[4];
|
|
|
|
if (st.countTokens() == 4) {
|
|
try {
|
|
for (int i = 0; i < 4; i++) {
|
|
bytes[i] = (byte)Integer.parseInt(st.nextToken());
|
|
}
|
|
return InetAddress.getByAddress(address, bytes);
|
|
} catch (NumberFormatException nfe) {
|
|
return null;
|
|
} catch (UnknownHostException uhe) {
|
|
return null;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public static String getCidrFromGatewayAndNetmask(String gatewayStr, String netmaskStr) {
|
|
long netmask = ip2Long(netmaskStr);
|
|
long gateway = ip2Long(gatewayStr);
|
|
long firstPart = gateway & netmask;
|
|
long size = getCidrSize(netmaskStr);
|
|
return long2Ip(firstPart) + "/" + size;
|
|
}
|
|
|
|
public static String[] getIpRangeFromCidr(String cidr, long size) {
|
|
assert (size < 32) : "You do know this is not for ipv6 right? Keep it smaller than 32 but you have " + size;
|
|
String[] result = new String[2];
|
|
long ip = ip2Long(cidr);
|
|
long startNetMask = ip2Long(getCidrNetmask(size));
|
|
long start = (ip & startNetMask) + 1;
|
|
long end = start;
|
|
|
|
end = end >> (32 - size);
|
|
|
|
end++;
|
|
end = (end << (32 - size)) - 2;
|
|
|
|
result[0] = long2Ip(start);
|
|
result[1] = long2Ip(end);
|
|
|
|
return result;
|
|
}
|
|
|
|
public static Set<Long> getAllIpsFromCidr(String cidr, long size, Set<Long> usedIps) {
|
|
assert (size < 32) : "You do know this is not for ipv6 right? Keep it smaller than 32 but you have " + size;
|
|
Set<Long> result = new TreeSet<Long>();
|
|
long ip = ip2Long(cidr);
|
|
long startNetMask = ip2Long(getCidrNetmask(size));
|
|
long start = (ip & startNetMask) + 1;
|
|
long end = start;
|
|
|
|
end = end >> (32 - size);
|
|
|
|
end++;
|
|
end = (end << (32 - size)) - 2;
|
|
int maxIps = 255; // get 255 ips as maximum
|
|
while (start <= end && maxIps > 0) {
|
|
if (!usedIps.contains(start)) {
|
|
result.add(start);
|
|
maxIps--;
|
|
}
|
|
start++;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Given a cidr, this method returns an ip address within the range but
|
|
* is not in the avoid list.
|
|
*
|
|
* @param startIp ip that the cidr starts with
|
|
* @param size size of the cidr
|
|
* @param avoid set of ips to avoid
|
|
* @return ip that is within the cidr range but not in the avoid set. -1 if unable to find one.
|
|
*/
|
|
public static long getRandomIpFromCidr(String startIp, int size, SortedSet<Long> avoid) {
|
|
return getRandomIpFromCidr(ip2Long(startIp), size, avoid);
|
|
|
|
}
|
|
|
|
/**
|
|
* Given a cidr, this method returns an ip address within the range but
|
|
* is not in the avoid list.
|
|
* Note: the gateway address has to be specified in the avoid list
|
|
*
|
|
* @param cidr ip that the cidr starts with
|
|
* @param size size of the cidr
|
|
* @param avoid set of ips to avoid
|
|
* @return ip that is within the cidr range but not in the avoid set. -1 if unable to find one.
|
|
*/
|
|
public static long getRandomIpFromCidr(long cidr, int size, SortedSet<Long> avoid) {
|
|
assert (size < 32) : "You do know this is not for ipv6 right? Keep it smaller than 32 but you have " + size;
|
|
|
|
long startNetMask = ip2Long(getCidrNetmask(size));
|
|
long startIp = (cidr & startNetMask) + 1; //exclude the first ip since it isnt valid, e.g., 192.168.10.0
|
|
int range = 1 << (32 - size); //e.g., /24 = 2^8 = 256
|
|
range = range - 1; //exclude end of the range since that is the broadcast address, e.g., 192.168.10.255
|
|
|
|
if (avoid.size() >= range) {
|
|
return -1;
|
|
}
|
|
|
|
//Reduce the range by the size of the avoid set
|
|
//e.g., cidr = 192.168.10.0, size = /24, avoid = 192.168.10.1, 192.168.10.20, 192.168.10.254
|
|
// range = 2^8 - 1 - 3 = 252
|
|
range = range - avoid.size();
|
|
int next = _rand.nextInt(range); //note: nextInt excludes last value
|
|
long ip = startIp + next;
|
|
for (Long avoidable : avoid) {
|
|
if (ip >= avoidable) {
|
|
ip++;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ip;
|
|
}
|
|
|
|
public static String getIpRangeStartIpFromCidr(String cidr, long size) {
|
|
long ip = ip2Long(cidr);
|
|
long startNetMask = ip2Long(getCidrNetmask(size));
|
|
long start = (ip & startNetMask) + 1;
|
|
return long2Ip(start);
|
|
}
|
|
|
|
public static String getIpRangeEndIpFromCidr(String cidr, long size) {
|
|
long ip = ip2Long(cidr);
|
|
long startNetMask = ip2Long(getCidrNetmask(size));
|
|
long start = (ip & startNetMask) + 1;
|
|
long end = start;
|
|
end = end >> (32 - size);
|
|
|
|
end++;
|
|
end = (end << (32 - size)) - 2;
|
|
return long2Ip(end);
|
|
}
|
|
|
|
public static boolean sameSubnet(final String ip1, final String ip2, final String netmask) {
|
|
if (ip1 == null || ip1.isEmpty() || ip2 == null || ip2.isEmpty()) {
|
|
return true;
|
|
}
|
|
String subnet1 = NetUtils.getSubNet(ip1, netmask);
|
|
String subnet2 = NetUtils.getSubNet(ip2, netmask);
|
|
|
|
return (subnet1.equals(subnet2));
|
|
}
|
|
|
|
public static boolean sameSubnetCIDR(final String ip1, final String ip2, final long cidrSize) {
|
|
if (ip1 == null || ip1.isEmpty() || ip2 == null || ip2.isEmpty()) {
|
|
return true;
|
|
}
|
|
String subnet1 = NetUtils.getCidrSubNet(ip1, cidrSize);
|
|
String subnet2 = NetUtils.getCidrSubNet(ip2, cidrSize);
|
|
|
|
return (subnet1.equals(subnet2));
|
|
}
|
|
|
|
public static String getSubNet(String ip, String netmask) {
|
|
long ipAddr = ip2Long(ip);
|
|
long subnet = ip2Long(netmask);
|
|
long result = ipAddr & subnet;
|
|
return long2Ip(result);
|
|
}
|
|
|
|
public static String getCidrSubNet(String ip, long cidrSize) {
|
|
long numericNetmask = (0xffffffff >> (32 - cidrSize)) << (32 - cidrSize);
|
|
String netmask = NetUtils.long2Ip(numericNetmask);
|
|
return getSubNet(ip, netmask);
|
|
}
|
|
|
|
public static String ipAndNetMaskToCidr(String ip, String netmask) {
|
|
long ipAddr = ip2Long(ip);
|
|
long subnet = ip2Long(netmask);
|
|
long result = ipAddr & subnet;
|
|
int bits = (subnet == 0) ? 0 : 1;
|
|
long subnet2 = subnet;
|
|
while ((subnet2 = (subnet2 >> 1) & subnet) != 0) {
|
|
bits++;
|
|
}
|
|
|
|
return long2Ip(result) + "/" + Integer.toString(bits);
|
|
}
|
|
|
|
public static String[] ipAndNetMaskToRange(String ip, String netmask) {
|
|
long ipAddr = ip2Long(ip);
|
|
long subnet = ip2Long(netmask);
|
|
long start = (ipAddr & subnet) + 1;
|
|
long end = start;
|
|
int bits = (subnet == 0) ? 0 : 1;
|
|
while ((subnet = (subnet >> 1) & subnet) != 0) {
|
|
bits++;
|
|
}
|
|
end = end >> (32 - bits);
|
|
|
|
end++;
|
|
end = (end << (32 - bits)) - 2;
|
|
|
|
return new String[] {long2Ip(start), long2Ip(end)};
|
|
|
|
}
|
|
|
|
public static Pair<String, Integer> getCidr(String cidr) {
|
|
String[] tokens = cidr.split("/");
|
|
return new Pair<String, Integer>(tokens[0], Integer.parseInt(tokens[1]));
|
|
}
|
|
|
|
public static enum supersetOrSubset {
|
|
isSuperset,
|
|
isSubset,
|
|
neitherSubetNorSuperset,
|
|
sameSubnet,
|
|
errorInCidrFormat
|
|
}
|
|
|
|
public static supersetOrSubset isNetowrkASubsetOrSupersetOfNetworkB(String cidrA, String cidrB) {
|
|
Long[] cidrALong = cidrToLong(cidrA);
|
|
Long[] cidrBLong = cidrToLong(cidrB);
|
|
long shift = 0;
|
|
if (cidrALong == null || cidrBLong == null) {
|
|
//implies error in the cidr format
|
|
return supersetOrSubset.errorInCidrFormat;
|
|
}
|
|
if (cidrALong[1] >= cidrBLong[1]) {
|
|
shift = 32 - cidrBLong[1];
|
|
}
|
|
else {
|
|
shift = 32 - cidrALong[1];
|
|
}
|
|
long result = (cidrALong[0] >> shift) - (cidrBLong[0] >> shift);
|
|
if (result == 0) {
|
|
if (cidrALong[1] < cidrBLong[1]) {
|
|
//this implies cidrA is super set of cidrB
|
|
return supersetOrSubset.isSuperset;
|
|
}
|
|
else if (cidrALong[1] == cidrBLong[1]) {
|
|
//this implies both the cidrs are equal
|
|
return supersetOrSubset.sameSubnet;
|
|
}
|
|
// implies cidrA is subset of cidrB
|
|
return supersetOrSubset.isSubset;
|
|
}
|
|
//this implies no overlap.
|
|
return supersetOrSubset.neitherSubetNorSuperset;
|
|
}
|
|
|
|
public static boolean isNetworkAWithinNetworkB(String cidrA, String cidrB) {
|
|
Long[] cidrALong = cidrToLong(cidrA);
|
|
Long[] cidrBLong = cidrToLong(cidrB);
|
|
if (cidrALong == null || cidrBLong == null) {
|
|
return false;
|
|
}
|
|
long shift = 32 - cidrBLong[1];
|
|
return ((cidrALong[0] >> shift) == (cidrBLong[0] >> shift));
|
|
}
|
|
|
|
public static Long[] cidrToLong(String cidr) {
|
|
if (cidr == null || cidr.isEmpty()) {
|
|
return null;
|
|
}
|
|
String[] cidrPair = cidr.split("\\/");
|
|
if (cidrPair.length != 2) {
|
|
return null;
|
|
}
|
|
String cidrAddress = cidrPair[0];
|
|
String cidrSize = cidrPair[1];
|
|
if (!isValidIp(cidrAddress)) {
|
|
return null;
|
|
}
|
|
int cidrSizeNum = -1;
|
|
|
|
try {
|
|
cidrSizeNum = Integer.parseInt(cidrSize);
|
|
} catch (Exception e) {
|
|
return null;
|
|
}
|
|
long numericNetmask = (0xffffffff >> (32 - cidrSizeNum)) << (32 - cidrSizeNum);
|
|
long ipAddr = ip2Long(cidrAddress);
|
|
Long[] cidrlong = {ipAddr & numericNetmask, (long)cidrSizeNum};
|
|
return cidrlong;
|
|
|
|
}
|
|
|
|
public static String getCidrSubNet(String cidr) {
|
|
if (cidr == null || cidr.isEmpty()) {
|
|
return null;
|
|
}
|
|
String[] cidrPair = cidr.split("\\/");
|
|
if (cidrPair.length != 2) {
|
|
return null;
|
|
}
|
|
String cidrAddress = cidrPair[0];
|
|
String cidrSize = cidrPair[1];
|
|
if (!isValidIp(cidrAddress)) {
|
|
return null;
|
|
}
|
|
int cidrSizeNum = -1;
|
|
|
|
try {
|
|
cidrSizeNum = Integer.parseInt(cidrSize);
|
|
} catch (Exception e) {
|
|
return null;
|
|
}
|
|
long numericNetmask = (0xffffffff >> (32 - cidrSizeNum)) << (32 - cidrSizeNum);
|
|
String netmask = NetUtils.long2Ip(numericNetmask);
|
|
return getSubNet(cidrAddress, netmask);
|
|
}
|
|
|
|
public static String getCidrNetmask(long cidrSize) {
|
|
long numericNetmask = (0xffffffff >> (32 - cidrSize)) << (32 - cidrSize);
|
|
return long2Ip(numericNetmask);
|
|
}
|
|
|
|
public static String getCidrNetmask(String cidr) {
|
|
String[] cidrPair = cidr.split("\\/");
|
|
long guestCidrSize = Long.parseLong(cidrPair[1]);
|
|
return getCidrNetmask(guestCidrSize);
|
|
}
|
|
|
|
public static String cidr2Netmask(String cidr) {
|
|
String[] tokens = cidr.split("\\/");
|
|
return getCidrNetmask(Integer.parseInt(tokens[1]));
|
|
}
|
|
|
|
public static long getCidrSize(String netmask) {
|
|
long ip = ip2Long(netmask);
|
|
int count = 0;
|
|
for (int i = 0; i < 32; i++) {
|
|
if (((ip >> i) & 0x1) == 0) {
|
|
count++;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 32 - count;
|
|
}
|
|
|
|
public static boolean isValidPort(String p) {
|
|
try {
|
|
int port = Integer.parseInt(p);
|
|
return !(port > 65535 || port < 1);
|
|
} catch (NumberFormatException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static boolean isValidPort(int p) {
|
|
return !(p > 65535 || p < 1);
|
|
}
|
|
|
|
public static boolean isValidLBPort(String p) {
|
|
try {
|
|
int port = Integer.parseInt(p);
|
|
return !(port > 65535 || port < 1);
|
|
} catch (NumberFormatException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static boolean isValidProto(String p) {
|
|
String proto = p.toLowerCase();
|
|
return (proto.equals(TCP_PROTO) || proto.equals(UDP_PROTO) || proto.equals(ICMP_PROTO));
|
|
}
|
|
|
|
public static boolean isValidSecurityGroupProto(String p) {
|
|
String proto = p.toLowerCase();
|
|
return (proto.equals(TCP_PROTO) || proto.equals(UDP_PROTO) || proto.equals(ICMP_PROTO) || proto.equals(ALL_PROTO));
|
|
}
|
|
|
|
public static boolean isValidAlgorithm(String p) {
|
|
String algo = p.toLowerCase();
|
|
return (algo.equals("roundrobin") || algo.equals("leastconn") || algo.equals("source"));
|
|
}
|
|
|
|
public static boolean isValidAutoScaleAction(String p) {
|
|
String action = p.toLowerCase();
|
|
return (action.equals("scaleup") || action.equals("scaledown"));
|
|
}
|
|
|
|
public static String getLinkLocalNetMask() {
|
|
return "255.255.0.0";
|
|
}
|
|
|
|
public static String getLinkLocalGateway() {
|
|
return "169.254.0.1";
|
|
}
|
|
|
|
public static String getLinkLocalCIDR() {
|
|
return "169.254.0.0/16";
|
|
}
|
|
|
|
public static String[] getLinkLocalIPRange(int size) {
|
|
if (size > 16 || size <= 0) {
|
|
return null;
|
|
}
|
|
/* reserve gateway */
|
|
String[] range = getIpRangeFromCidr(getLinkLocalGateway(), 32 - size);
|
|
|
|
if (range[0].equalsIgnoreCase(getLinkLocalGateway())) {
|
|
/* remove the gateway */
|
|
long ip = ip2Long(range[0]);
|
|
ip += 1;
|
|
range[0] = long2Ip(ip);
|
|
}
|
|
return range;
|
|
}
|
|
|
|
public static String getLinkLocalIpEnd() {
|
|
String[] cidrPair = getLinkLocalCIDR().split("\\/");
|
|
String cidr = cidrPair[0];
|
|
|
|
return getIpRangeEndIpFromCidr(cidr, 32 - Long.parseLong(cidrPair[1]));
|
|
}
|
|
|
|
public static String portRangeToString(int portRange[]) {
|
|
return Integer.toString(portRange[0]) + ":" + Integer.toString(portRange[1]);
|
|
}
|
|
|
|
public static boolean verifyDomainNameLabel(String hostName, boolean isHostName) {
|
|
// must be between 1 and 63 characters long and may contain only the ASCII letters 'a' through 'z' (in a
|
|
// case-insensitive manner),
|
|
// the digits '0' through '9', and the hyphen ('-').
|
|
// Can not start with a hyphen and digit, and must not end with a hyphen
|
|
// If it's a host name, don't allow to start with digit
|
|
|
|
if (hostName.length() > 63 || hostName.length() < 1) {
|
|
s_logger.warn("Domain name label must be between 1 and 63 characters long");
|
|
return false;
|
|
} else if (!hostName.toLowerCase().matches("[a-z0-9-]*")) {
|
|
s_logger.warn("Domain name label may contain only the ASCII letters 'a' through 'z' (in a case-insensitive manner)");
|
|
return false;
|
|
} else if (hostName.startsWith("-") || hostName.endsWith("-")) {
|
|
s_logger.warn("Domain name label can not start with a hyphen and digit, and must not end with a hyphen");
|
|
return false;
|
|
} else if (isHostName && hostName.matches("^[0-9-].*")) {
|
|
s_logger.warn("Host name can't start with digit");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public static boolean verifyDomainName(String domainName) {
|
|
// don't allow domain name length to exceed 190 chars (190 + 63 (max host name length) = 253 = max domainName length
|
|
if (domainName.length() < 1 || domainName.length() > 190) {
|
|
s_logger.trace("Domain name must be between 1 and 190 characters long");
|
|
return false;
|
|
}
|
|
|
|
if (domainName.startsWith(".") || domainName.endsWith(".")) {
|
|
s_logger.trace("Domain name can't start or end with .");
|
|
return false;
|
|
}
|
|
|
|
String[] domainNameLabels = domainName.split("\\.");
|
|
|
|
for (int i = 0; i < domainNameLabels.length; i++) {
|
|
if (!verifyDomainNameLabel(domainNameLabels[i], false)) {
|
|
s_logger.warn("Domain name label " + domainNameLabels[i] + " is incorrect");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public static String getDhcpRange(String cidr) {
|
|
String[] splitResult = cidr.split("\\/");
|
|
long size = Long.valueOf(splitResult[1]);
|
|
return NetUtils.getIpRangeStartIpFromCidr(splitResult[0], size);
|
|
}
|
|
|
|
// Check if 2 CIDRs have exactly same IP Range
|
|
public static boolean isSameIpRange(String cidrA, String cidrB) {
|
|
|
|
if (!NetUtils.isValidCIDR(cidrA)) {
|
|
s_logger.info("Invalid value of cidr " + cidrA);
|
|
return false;
|
|
}
|
|
if (!NetUtils.isValidCIDR(cidrB)) {
|
|
s_logger.info("Invalid value of cidr " + cidrB);
|
|
return false;
|
|
}
|
|
String[] cidrPairFirst = cidrA.split("\\/");
|
|
String[] cidrPairSecond = cidrB.split("\\/");
|
|
|
|
Long networkSizeFirst = Long.valueOf(cidrPairFirst[1]);
|
|
Long networkSizeSecond = Long.valueOf(cidrPairSecond[1]);
|
|
String ipRangeFirst[] = NetUtils.getIpRangeFromCidr(cidrPairFirst[0], networkSizeFirst);
|
|
String ipRangeSecond[] = NetUtils.getIpRangeFromCidr(cidrPairFirst[0], networkSizeSecond);
|
|
|
|
long startIpFirst = NetUtils.ip2Long(ipRangeFirst[0]);
|
|
long endIpFirst = NetUtils.ip2Long(ipRangeFirst[1]);
|
|
long startIpSecond = NetUtils.ip2Long(ipRangeSecond[0]);
|
|
long endIpSecond = NetUtils.ip2Long(ipRangeSecond[1]);
|
|
if (startIpFirst == startIpSecond && endIpFirst == endIpSecond) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public static boolean validateGuestCidr(String cidr) {
|
|
// RFC 1918 - The Internet Assigned Numbers Authority (IANA) has reserved the
|
|
// following three blocks of the IP address space for private internets:
|
|
// 10.0.0.0 - 10.255.255.255 (10/8 prefix)
|
|
// 172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
|
|
// 192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
|
|
|
|
String cidr1 = "10.0.0.0/8";
|
|
String cidr2 = "172.16.0.0/12";
|
|
String cidr3 = "192.168.0.0/16";
|
|
|
|
if (!isValidCIDR(cidr)) {
|
|
s_logger.warn("Cidr " + cidr + " is not valid");
|
|
return false;
|
|
}
|
|
|
|
if (isNetworkAWithinNetworkB(cidr, cidr1) || isNetworkAWithinNetworkB(cidr, cidr2) || isNetworkAWithinNetworkB(cidr, cidr3)) {
|
|
return true;
|
|
} else {
|
|
s_logger.warn("cidr " + cidr + " is not RFC 1918 compliant");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static boolean verifyInstanceName(String instanceName) {
|
|
//instance name for cloudstack vms shouldn't contain - and spaces
|
|
if (instanceName.contains("-") || instanceName.contains(" ") || instanceName.contains("+")) {
|
|
s_logger.warn("Instance name can not contain hyphen, spaces and \"+\" char");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public static boolean isNetworksOverlap(String cidrA, String cidrB) {
|
|
Long[] cidrALong = cidrToLong(cidrA);
|
|
Long[] cidrBLong = cidrToLong(cidrB);
|
|
if (cidrALong == null || cidrBLong == null) {
|
|
return false;
|
|
}
|
|
long shift = 32 - (cidrALong[1] > cidrBLong[1] ? cidrBLong[1] : cidrALong[1]);
|
|
return ((cidrALong[0] >> shift) == (cidrBLong[0] >> shift));
|
|
}
|
|
|
|
public static boolean isValidS2SVpnPolicy(String policys) {
|
|
if (policys == null || policys.isEmpty()) {
|
|
return false;
|
|
}
|
|
for (String policy : policys.split(",")) {
|
|
if (policy.isEmpty()) {
|
|
return false;
|
|
}
|
|
String cipherHash = policy.split(";")[0];
|
|
if (cipherHash.isEmpty()) {
|
|
return false;
|
|
}
|
|
String[] list = cipherHash.split("-");
|
|
if (list.length != 2) {
|
|
return false;
|
|
}
|
|
String cipher = list[0];
|
|
String hash = list[1];
|
|
if (!cipher.matches("3des|aes128|aes192|aes256")) {
|
|
return false;
|
|
}
|
|
if (!hash.matches("md5|sha1")) {
|
|
return false;
|
|
}
|
|
String pfsGroup = null;
|
|
if (!policy.equals(cipherHash)) {
|
|
pfsGroup = policy.split(";")[1];
|
|
}
|
|
if (pfsGroup != null && !pfsGroup.matches("modp1024|modp1536")) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static boolean validateGuestCidrList(String guestCidrList) {
|
|
for (String guestCidr : guestCidrList.split(",")) {
|
|
if (!validateGuestCidr(guestCidr)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static boolean validateIcmpType(long icmpType) {
|
|
//Source - http://www.erg.abdn.ac.uk/~gorry/course/inet-pages/icmp-code.html
|
|
if (!(icmpType >= 0 && icmpType <= 255)) {
|
|
s_logger.warn("impcType is not within 0-255 range");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static boolean validateIcmpCode(long icmpCode) {
|
|
|
|
//Source - http://www.erg.abdn.ac.uk/~gorry/course/inet-pages/icmp-code.html
|
|
if (!(icmpCode >= 0 && icmpCode <= 15)) {
|
|
s_logger.warn("Icmp code should be within 0-15 range");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public static boolean isValidIpv6(String ip) {
|
|
try {
|
|
IPv6Address address = IPv6Address.fromString(ip);
|
|
} catch (IllegalArgumentException ex) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static boolean isValidIp6Cidr(String ip6Cidr) {
|
|
try {
|
|
IPv6Network network = IPv6Network.fromString(ip6Cidr);
|
|
} catch (IllegalArgumentException ex) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static int getIp6CidrSize(String ip6Cidr) {
|
|
IPv6Network network = null;
|
|
try {
|
|
network = IPv6Network.fromString(ip6Cidr);
|
|
} catch (IllegalArgumentException ex) {
|
|
return 0;
|
|
}
|
|
return network.getNetmask().asPrefixLength();
|
|
}
|
|
|
|
// Can cover 127 bits
|
|
public static String getIp6FromRange(String ip6Range) {
|
|
String[] ips = ip6Range.split("-");
|
|
String startIp = ips[0];
|
|
IPv6Address start = IPv6Address.fromString(startIp);
|
|
BigInteger gap = countIp6InRange(ip6Range);
|
|
BigInteger next = new BigInteger(gap.bitLength(), _rand);
|
|
while (next.compareTo(gap) >= 0) {
|
|
next = new BigInteger(gap.bitLength(), _rand);
|
|
}
|
|
BigInteger startInt = convertIPv6AddressToBigInteger(start);
|
|
BigInteger resultInt = startInt.add(next);
|
|
InetAddress resultAddr;
|
|
try {
|
|
resultAddr = InetAddress.getByAddress(resultInt.toByteArray());
|
|
} catch (UnknownHostException e) {
|
|
return null;
|
|
}
|
|
IPv6Address ip = IPv6Address.fromInetAddress(resultAddr);
|
|
return ip.toString();
|
|
}
|
|
|
|
//RFC3315, section 9.4
|
|
public static String getDuidLL(String macAddress) {
|
|
String duid = "00:03:00:01:" + macAddress;
|
|
return duid;
|
|
}
|
|
|
|
private static BigInteger convertIPv6AddressToBigInteger(IPv6Address addr) {
|
|
InetAddress inetAddr;
|
|
try {
|
|
inetAddr = addr.toInetAddress();
|
|
} catch (UnknownHostException e) {
|
|
return null;
|
|
}
|
|
return new BigInteger(inetAddr.getAddress());
|
|
}
|
|
|
|
// Can cover 127 bits
|
|
public static BigInteger countIp6InRange(String ip6Range) {
|
|
if (ip6Range == null) {
|
|
return null;
|
|
}
|
|
String[] ips = ip6Range.split("-");
|
|
String startIp = ips[0];
|
|
String endIp = ips[0];
|
|
if (ips.length > 1) {
|
|
endIp = ips[1];
|
|
}
|
|
IPv6Address start, end;
|
|
try {
|
|
start = IPv6Address.fromString(startIp);
|
|
end = IPv6Address.fromString(endIp);
|
|
} catch (IllegalArgumentException ex) {
|
|
return null;
|
|
}
|
|
BigInteger startInt = convertIPv6AddressToBigInteger(start);
|
|
BigInteger endInt = convertIPv6AddressToBigInteger(end);
|
|
if (startInt.compareTo(endInt) > 0) {
|
|
return null;
|
|
}
|
|
return endInt.subtract(startInt).add(BigInteger.ONE);
|
|
}
|
|
|
|
public static boolean isIp6InRange(String ip6, String ip6Range) {
|
|
if (ip6Range == null) {
|
|
return false;
|
|
}
|
|
String[] ips = ip6Range.split("-");
|
|
String startIp = ips[0];
|
|
String endIp = null;
|
|
if (ips.length > 1) {
|
|
endIp = ips[1];
|
|
}
|
|
IPv6Address start = IPv6Address.fromString(startIp);
|
|
IPv6Address end = IPv6Address.fromString(endIp);
|
|
IPv6Address ip = IPv6Address.fromString(ip6);
|
|
if (start.compareTo(ip) <= 0 && end.compareTo(ip) >= 0) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public static boolean isIp6InNetwork(String ip6, String ip6Cidr) {
|
|
IPv6Network network = null;
|
|
try {
|
|
network = IPv6Network.fromString(ip6Cidr);
|
|
} catch (IllegalArgumentException ex) {
|
|
return false;
|
|
}
|
|
IPv6Address ip = IPv6Address.fromString(ip6);
|
|
return network.contains(ip);
|
|
}
|
|
|
|
public static boolean isIp6RangeOverlap(String ipRange1, String ipRange2) {
|
|
String[] ips = ipRange1.split("-");
|
|
String startIp1 = ips[0];
|
|
String endIp1 = null;
|
|
if (ips.length > 1) {
|
|
endIp1 = ips[1];
|
|
}
|
|
IPv6Address start1 = IPv6Address.fromString(startIp1);
|
|
IPv6Address end1 = IPv6Address.fromString(endIp1);
|
|
IPv6AddressRange range1 = IPv6AddressRange.fromFirstAndLast(start1, end1);
|
|
ips = ipRange2.split("-");
|
|
String startIp2 = ips[0];
|
|
String endIp2 = null;
|
|
if (ips.length > 1) {
|
|
endIp2 = ips[1];
|
|
}
|
|
IPv6Address start2 = IPv6Address.fromString(startIp2);
|
|
IPv6Address end2 = IPv6Address.fromString(endIp2);
|
|
IPv6AddressRange range2 = IPv6AddressRange.fromFirstAndLast(start2, end2);
|
|
return range1.overlaps(range2);
|
|
}
|
|
|
|
public static String getNextIp6InRange(String currentIp, String ipRange) {
|
|
String[] ips = ipRange.split("-");
|
|
String startIp = ips[0];
|
|
String endIp = null;
|
|
if (ips.length > 1) {
|
|
endIp = ips[1];
|
|
}
|
|
IPv6Address start = IPv6Address.fromString(startIp);
|
|
IPv6Address end = IPv6Address.fromString(endIp);
|
|
IPv6Address current = IPv6Address.fromString(currentIp);
|
|
IPv6Address result = null;
|
|
if (current.equals(end)) {
|
|
result = start;
|
|
} else {
|
|
result = current.add(1);
|
|
}
|
|
String resultIp = null;
|
|
if (result != null) {
|
|
resultIp = result.toString();
|
|
}
|
|
return resultIp;
|
|
}
|
|
|
|
public static boolean isValidVlan(String vlan) {
|
|
try {
|
|
int vnet = Integer.parseInt(vlan);
|
|
if (vnet < 0 || vnet > 4096) {
|
|
return false;
|
|
}
|
|
return true;
|
|
} catch (NumberFormatException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Attention maintainers: these pvlan functions should take into account code
|
|
// in Networks.BroadcastDomainType, where URI construction is done for other
|
|
// types of BroadcastDomainTypes
|
|
public static URI generateUriForPvlan(String primaryVlan, String isolatedPvlan) {
|
|
return URI.create("pvlan://" + primaryVlan + "-i" + isolatedPvlan);
|
|
}
|
|
|
|
public static String getPrimaryPvlanFromUri(URI uri) {
|
|
String[] vlans = uri.getHost().split("-");
|
|
if (vlans.length < 1) {
|
|
return null;
|
|
}
|
|
return vlans[0];
|
|
}
|
|
|
|
public static String getIsolatedPvlanFromUri(URI uri) {
|
|
String[] vlans = uri.getHost().split("-");
|
|
if (vlans.length < 2) {
|
|
return null;
|
|
}
|
|
for (String vlan : vlans) {
|
|
if (vlan.startsWith("i")) {
|
|
return vlan.replace("i", " ").trim();
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public static String generateMacOnIncrease(String baseMac, long l) {
|
|
long mac = mac2Long(baseMac);
|
|
if (l > 0xFFFFl) {
|
|
return null;
|
|
}
|
|
mac = mac + (l << 24);
|
|
mac = mac & 0x06FFFFFFFFFFl;
|
|
return long2Mac(mac);
|
|
}
|
|
}
|
