// Copyright 2012 Citrix Systems, Inc. Licensed under the
// Apache License, Version 2.0 (the "License"); you may not use this
// file except in compliance with the License. Citrix Systems, Inc.
// reserves all rights not expressly granted by the License.
// You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Automatically generated by addcopyright.py at 04/03/2012
package com.cloud.utils.net;
import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;
import java.lang.reflect.Array;
import java.net.InetAddress;
import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Formatter;
import java.util.List;
import java.util.Random;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TreeSet;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.log4j.Logger;
import org.apache.log4j.xml.DOMConfigurator;
import com.cloud.utils.IteratorUtil;
import com.cloud.utils.Pair;
import com.cloud.utils.script.Script;
public class NetUtils {
protected final static Logger s_logger = Logger.getLogger(NetUtils.class);
public final static String HTTP_PORT = "80";
public final static int VPN_PORT = 500;
public final static int VPN_NATT_PORT = 4500;
public final static int VPN_L2TP_PORT = 1701;
public final static String UDP_PROTO = "udp";
public final static String TCP_PROTO = "tcp";
public final static String ANY_PROTO = "any";
public final static String ICMP_PROTO = "icmp";
public final static String ALL_PROTO = "all";
public final static String ALL_CIDRS = "0.0.0.0/0";
private final static Random _rand = new Random(System.currentTimeMillis());
public static long createSequenceBasedMacAddress(long macAddress) {
return macAddress | 0x060000000000l | (((long) _rand.nextInt(32768) << 25) & 0x00fffe000000l);
}
public static String getHostName() {
try {
InetAddress localAddr = InetAddress.getLocalHost();
if (localAddr != null) {
return localAddr.getHostName();
}
} catch (UnknownHostException e) {
s_logger.warn("UnknownHostException when trying to get host name. ", e);
}
return "localhost";
}
public static InetAddress getLocalInetAddress() {
try {
return InetAddress.getLocalHost();
} catch (UnknownHostException e) {
s_logger.warn("UnknownHostException in getLocalInetAddress().", e);
return null;
}
}
public static String resolveToIp(String host) {
try {
InetAddress addr = InetAddress.getByName(host);
return ipFromInetAddress(addr);
} catch (UnknownHostException e) {
s_logger.warn("Unable to resolve " + host + " to IP due to UnknownHostException");
return null;
}
}
public static InetAddress[] getAllLocalInetAddresses() {
List<InetAddress> addrList = new ArrayList<InetAddress>();
try {
for (NetworkInterface ifc : IteratorUtil.enumerationAsIterable(NetworkInterface.getNetworkInterfaces())) {
if (ifc.isUp() && !ifc.isVirtual()) {
for (InetAddress addr : IteratorUtil.enumerationAsIterable(ifc.getInetAddresses())) {
addrList.add(addr);
}
}
}
} catch (SocketException e) {
s_logger.warn("SocketException in getAllLocalInetAddresses().", e);
}
InetAddress[] addrs = new InetAddress[addrList.size()];
if (addrList.size() > 0) {
System.arraycopy(addrList.toArray(), 0, addrs, 0, addrList.size());
}
return addrs;
}
public static String[] getLocalCidrs() {
String defaultHostIp = getDefaultHostIp();
List<String> cidrList = new ArrayList<String>();
try {
for (NetworkInterface ifc : IteratorUtil.enumerationAsIterable(NetworkInterface.getNetworkInterfaces())) {
if (ifc.isUp() && !ifc.isVirtual() && !ifc.isLoopback()) {
for (InterfaceAddress address : ifc.getInterfaceAddresses()) {
InetAddress addr = address.getAddress();
int prefixLength = address.getNetworkPrefixLength();
if (prefixLength < 32 && prefixLength > 0) {
String ip = ipFromInetAddress(addr);
if(ip.equalsIgnoreCase(defaultHostIp))
cidrList.add(ipAndNetMaskToCidr(ip, getCidrNetmask(prefixLength)));
}
}
}
}
} catch (SocketException e) {
s_logger.warn("UnknownHostException in getLocalCidrs().", e);
}
return cidrList.toArray(new String[0]);
}
private static boolean isWindows() {
String os = System.getProperty("os.name");
if(os != null && os.startsWith("Windows"))
return true;
return false;
}
public static String getDefaultHostIp() {
if(isWindows()) {
Pattern pattern = Pattern.compile("\\s*0.0.0.0\\s*0.0.0.0\\s*(\\S*)\\s*(\\S*)\\s*");
try {
Process result = Runtime.getRuntime().exec("route print -4");
BufferedReader output = new BufferedReader
(new InputStreamReader(result.getInputStream()));
String line = output.readLine();
while(line != null){
Matcher matcher = pattern.matcher(line);
if (matcher.find()) {
return matcher.group(2);
}
line = output.readLine();
}
} catch( Exception e ) {
}
return null;
} else {
NetworkInterface nic = null;
String pubNic = getDefaultEthDevice();
if (pubNic == null) {
return null;
}
try {
nic = NetworkInterface.getByName(pubNic);
} catch (final SocketException e) {
return null;
}
String[] info = NetUtils.getNetworkParams(nic);
return info[0];
}
}
public static String getDefaultEthDevice() {
String defaultRoute = Script.runSimpleBashScript("/sbin/route | grep default");
if (defaultRoute == null) {
return null;
}
String[] defaultRouteList = defaultRoute.split("\\s+");
if (defaultRouteList.length != 8) {
return null;
}
return defaultRouteList[7];
}
public static InetAddress getFirstNonLoopbackLocalInetAddress() {
InetAddress[] addrs = getAllLocalInetAddresses();
if (addrs != null) {
for (InetAddress addr : addrs) {
if (s_logger.isInfoEnabled()) {
s_logger.info("Check local InetAddress : " + addr.toString() + ", total count :" + addrs.length);
}
if (!addr.isLoopbackAddress()) {
return addr;
}
}
}
s_logger.warn("Unable to determine a non-loopback address, local inet address count :" + addrs.length);
return null;
}
public static InetAddress[] getInterfaceInetAddresses(String ifName) {
List<InetAddress> addrList = new ArrayList<InetAddress>();
try {
for (NetworkInterface ifc : IteratorUtil.enumerationAsIterable(NetworkInterface.getNetworkInterfaces())) {
if (ifc.isUp() && !ifc.isVirtual() && ifc.getName().equals(ifName)) {
for (InetAddress addr : IteratorUtil.enumerationAsIterable(ifc.getInetAddresses())) {
addrList.add(addr);
}
}
}
} catch (SocketException e) {
s_logger.warn("SocketException in getAllLocalInetAddresses().", e);
}
InetAddress[] addrs = new InetAddress[addrList.size()];
if (addrList.size() > 0) {
System.arraycopy(addrList.toArray(), 0, addrs, 0, addrList.size());
}
return addrs;
}
public static String getLocalIPString() {
InetAddress addr = getLocalInetAddress();
if (addr != null) {
return ipFromInetAddress(addr);
}
return new String("127.0.0.1");
}
public static String ipFromInetAddress(InetAddress addr) {
assert (addr != null);
byte[] ipBytes = addr.getAddress();
StringBuffer sb = new StringBuffer();
sb.append(ipBytes[0] & 0xff).append(".");
sb.append(ipBytes[1] & 0xff).append(".");
sb.append(ipBytes[2] & 0xff).append(".");
sb.append(ipBytes[3] & 0xff);
return sb.toString();
}
public static boolean isLocalAddress(InetAddress addr) {
InetAddress[] addrs = getAllLocalInetAddresses();
if (addrs != null) {
for (InetAddress self : addrs) {
if (self.equals(addr)) {
return true;
}
}
}
return false;
}
public static boolean isLocalAddress(String strAddress) {
InetAddress addr;
try {
addr = InetAddress.getByName(strAddress);
return isLocalAddress(addr);
} catch (UnknownHostException e) {
}
return false;
}
public static String getMacAddress(InetAddress address) {
StringBuffer sb = new StringBuffer();
Formatter formatter = new Formatter(sb);
try {
NetworkInterface ni = NetworkInterface.getByInetAddress(address);
byte[] mac = ni.getHardwareAddress();
for (int i = 0; i < mac.length; i++) {
formatter.format("%02X%s", mac[i], (i < mac.length - 1) ? ":" : "");
}
} catch (SocketException e) {
s_logger.error("SocketException when trying to retrieve MAC address", e);
}
return sb.toString();
}
public static long getMacAddressAsLong(InetAddress address) {
long macAddressAsLong = 0;
try {
NetworkInterface ni = NetworkInterface.getByInetAddress(address);
byte[] mac = ni.getHardwareAddress();
for (int i = 0; i < mac.length; i++) {
macAddressAsLong |= ((long) (mac[i] & 0xff) << (mac.length - i - 1) * 8);
}
} catch (SocketException e) {
s_logger.error("SocketException when trying to retrieve MAC address", e);
}
return macAddressAsLong;
}
public static boolean ipRangesOverlap(String startIp1, String endIp1, String startIp2, String endIp2) {
long startIp1Long = ip2Long(startIp1);
long endIp1Long = startIp1Long;
if (endIp1 != null) {
endIp1Long = ip2Long(endIp1);
}
long startIp2Long = ip2Long(startIp2);
long endIp2Long = startIp2Long;
if (endIp2 != null) {
endIp2Long = ip2Long(endIp2);
}
if (startIp1Long == startIp2Long || startIp1Long == endIp2Long || endIp1Long == startIp2Long || endIp1Long == endIp2Long) {
return true;
} else if (startIp1Long > startIp2Long && startIp1Long < endIp2Long) {
return true;
} else if (endIp1Long > startIp2Long && endIp1Long < endIp2Long) {
return true;
} else if (startIp2Long > startIp1Long && startIp2Long < endIp1Long) {
return true;
} else if (endIp2Long > startIp1Long && endIp2Long < endIp1Long) {
return true;
} else {
return false;
}
}
public static long ip2Long(String ip) {
String[] tokens = ip.split("[.]");
assert (tokens.length == 4);
long result = 0;
for (int i = 0; i < tokens.length; i++) {
try {
result = (result << 8) | Integer.parseInt(tokens[i]);
} catch (NumberFormatException e) {
throw new RuntimeException("Incorrect number", e);
}
}
return result;
}
public static String long2Ip(long ip) {
StringBuilder result = new StringBuilder(15);
result.append((ip >> 24 & 0xff)).append(".");
result.append((ip >> 16 & 0xff)).append(".");
result.append((ip >> 8 & 0xff)).append(".");
result.append(ip & 0xff);
return result.toString();
}
public static long mac2Long(String macAddress) {
String[] tokens = macAddress.split(":");
assert (tokens.length == 6);
long result = 0;
for (int i = 0; i < tokens.length; i++) {
result = result << 8;
result |= Integer.parseInt(tokens[i], 16);
}
return result;
}
public static String[] getNicParams(String nicName) {
try {
NetworkInterface nic = NetworkInterface.getByName(nicName);
return getNetworkParams(nic);
} catch (SocketException e) {
return null;
}
}
public static String[] getNetworkParams(NetworkInterface nic) {
List<InterfaceAddress> addrs = nic.getInterfaceAddresses();
if (addrs == null || addrs.size() == 0) {
return null;
}
InterfaceAddress addr = null;
for (InterfaceAddress iaddr : addrs) {
InetAddress inet = iaddr.getAddress();
if (!inet.isLinkLocalAddress() && !inet.isLoopbackAddress() && !inet.isMulticastAddress() && inet.getAddress().length == 4) {
addr = iaddr;
break;
}
}
if (addr == null) {
return null;
}
String[] result = new String[3];
result[0] = addr.getAddress().getHostAddress();
try {
byte[] mac = nic.getHardwareAddress();
result[1] = byte2Mac(mac);
} catch (Exception e) {
}
result[2] = prefix2Netmask(addr.getNetworkPrefixLength());
return result;
}
public static String prefix2Netmask(short prefix) {
long addr = 0;
for (int i = 0; i < prefix; i++) {
addr = addr | (1 << (31 - i));
}
return long2Ip(addr);
}
public static String byte2Mac(byte[] m) {
StringBuilder result = new StringBuilder(17);
Formatter formatter = new Formatter(result);
formatter.format("%02x:%02x:%02x:%02x:%02x:%02x", m[0], m[1], m[2], m[3], m[4], m[5]);
return result.toString();
}
public static String long2Mac(long macAddress) {
StringBuilder result = new StringBuilder(17);
Formatter formatter = new Formatter(result);
formatter.format("%02x:%02x:%02x:%02x:%02x:%02x", (macAddress >> 40) & 0xff, (macAddress >> 32) & 0xff, (macAddress >> 24) & 0xff, (macAddress >> 16) & 0xff, (macAddress >> 8) & 0xff,
(macAddress & 0xff));
return result.toString();
}
public static boolean isValidPrivateIp(String ipAddress, String guestIPAddress) {
InetAddress privIp = parseIpAddress(ipAddress);
if (privIp == null) {
return false;
}
if (!privIp.isSiteLocalAddress()) {
return false;
}
String firstGuestOctet = "10";
if (guestIPAddress != null && !guestIPAddress.isEmpty()) {
String[] guestIPList = guestIPAddress.split("\\.");
firstGuestOctet = guestIPList[0];
}
String[] ipList = ipAddress.split("\\.");
if (!ipList[0].equals(firstGuestOctet)) {
return false;
}
return true;
}
public static boolean isSiteLocalAddress(String ipAddress) {
if (ipAddress == null) {
return false;
} else {
InetAddress ip = parseIpAddress(ipAddress);
return ip.isSiteLocalAddress();
}
}
public static boolean validIpRange(String startIP, String endIP) {
if (endIP == null || endIP.isEmpty()) {
return true;
}
long startIPLong = NetUtils.ip2Long(startIP);
long endIPLong = NetUtils.ip2Long(endIP);
return (startIPLong <= endIPLong);
}
public static boolean isValidIp(final String ip) {
final String[] ipAsList = ip.split("\\.");
// The IP address must have four octets
if (Array.getLength(ipAsList) != 4) {
return false;
}
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) {
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) + 2;
long end = start;
end = end >> (32 - size);
end++;
end = (end << (32 - size)) - 2;
while (start <= end) {
result.add(start);
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, Set<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.
*
* @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(long cidr, int size, Set<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) + 2;
int range = 1 << (32 - size);
if (avoid.size() > range) {
return -1;
}
for (int i = 0; i < range; i++) {
int next = _rand.nextInt(range);
if (!avoid.contains(startIp + next)) {
return startIp + next;
}
}
return -1;
}
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 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 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]);
}
// test only
private static void configLog4j() {
URL configUrl = System.class.getResource("/conf/log4j-cloud.xml");
if (configUrl != null) {
System.out.println("Configure log4j using log4j-cloud.xml");
try {
File file = new File(configUrl.toURI());
System.out.println("Log4j configuration from : " + file.getAbsolutePath());
DOMConfigurator.configureAndWatch(file.getAbsolutePath(), 10000);
} catch (URISyntaxException e) {
System.out.println("Unable to convert log4j configuration Url to URI");
}
// DOMConfigurator.configure(configUrl);
} else {
System.out.println("Configure log4j with default properties");
}
}
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);
}
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;
}
}