2 * Copyright (c) 2017 Pantheon Technologies s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.openflowplugin.impl.util;
11 import java.net.InetAddress;
12 import java.net.UnknownHostException;
13 import java.util.Locale;
14 import java.util.Objects;
15 import javax.annotation.Nullable;
16 import org.opendaylight.openflowplugin.api.openflow.md.util.OpenflowVersion;
17 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.IpConversionUtil;
18 import org.opendaylight.openflowplugin.openflow.md.util.InventoryDataServiceUtil;
19 import org.opendaylight.openflowplugin.openflow.md.util.OpenflowPortsUtil;
20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IetfInetUtil;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DottedQuad;
27 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.opendaylight.ipv6.arbitrary.bitmask.fields.rev160224.Ipv6ArbitraryMask;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
33 * Utility class used for converting OpenFlow port numbers, Ipv4 and Ipv6 addresses to normalized format.
35 public final class AddressNormalizationUtil {
36 private static final Logger LOG = LoggerFactory.getLogger(AddressNormalizationUtil.class);
38 private static final String NO_ETH_MASK = "ff:ff:ff:ff:ff:ff";
39 private static final String PREFIX_SEPARATOR = "/";
41 private AddressNormalizationUtil() {
45 * Extract port number from URI and convert it to OpenFlow specific textual representation.
47 * @param port the OpenFlow port
48 * @param protocolVersion the OpenFLow protocol version
49 * @return normalized uri
52 public static Uri normalizeProtocolAgnosticPort(@Nullable final Uri port, final short protocolVersion) {
53 if (Objects.isNull(port)) {
57 Long portValue = InventoryDataServiceUtil
58 .portNumberfromNodeConnectorId(OpenflowVersion.get(protocolVersion), port.getValue());
60 return portValue == null ? null : OpenflowPortsUtil.getProtocolAgnosticPortUri(protocolVersion, portValue);
64 * Normalize Ipv6 address with prefix mask (ex. 1234:5678:9ABC::/76) and apply prefix mask to Ipv6 address.
66 * @param ipv6Prefix the Ipv6 prefix
67 * @return normalized Ipv6 prefix
70 public static Ipv6Prefix normalizeIpv6Prefix(@Nullable final Ipv6Prefix ipv6Prefix) {
71 if (Objects.isNull(ipv6Prefix)) {
75 final byte[] address = IetfInetUtil.INSTANCE.ipv6AddressBytes(IpConversionUtil.extractIpv6Address(ipv6Prefix));
77 IpConversionUtil.convertIpv6PrefixToByteArray(IpConversionUtil.extractIpv6Prefix(ipv6Prefix));
78 return normalizeIpv6Address(address, mask);
82 * Normalize Ipv6 address and arbitrary mask and apply arbitrary mask to Ipv6 address.
84 * @param ipv6Address the Ipv4 address
85 * @param ipv4Mask the Ipv4 mask
86 * @return normalized Ipv6 prefix
89 public static Ipv6Prefix normalizeIpv6Arbitrary(@Nullable final Ipv6Address ipv6Address,
90 @Nullable final Ipv6ArbitraryMask ipv4Mask) {
91 if (Objects.isNull(ipv6Address)) {
95 final byte[] address = IetfInetUtil.INSTANCE.ipv6AddressBytes(ipv6Address);
96 final byte[] mask = IpConversionUtil.convertIpv6ArbitraryMaskToByteArray(ipv4Mask);
97 return normalizeIpv6Address(address, mask);
101 * Normalize ipv 6 address without mask.
103 * @param ipv6Address the Ipv6 address
104 * @return normalized Ipv6 address
107 public static Ipv6Address normalizeIpv6AddressWithoutMask(@Nullable final Ipv6Address ipv6Address) {
108 final Ipv6Prefix ipv6Prefix = normalizeIpv6Arbitrary(ipv6Address, null);
109 return Objects.nonNull(ipv6Prefix)
110 ? new Ipv6Address(ipv6Prefix.getValue().split(PREFIX_SEPARATOR)[0])
115 * Normalize Ipv4 address with prefix mask (ex. 192.168.0.1/24) and apply prefix mask to Ipv4 address.
117 * @param ipv4Prefix the Ipv4 prefix
118 * @return normalized Ipv4 prefix
121 public static Ipv4Prefix normalizeIpv4Prefix(@Nullable final Ipv4Prefix ipv4Prefix) {
122 if (Objects.isNull(ipv4Prefix)) {
126 final byte[] address = IetfInetUtil.INSTANCE.ipv4AddressBytes(IpConversionUtil.extractIpv4Address(ipv4Prefix));
128 IpConversionUtil.convertArbitraryMaskToByteArray(IpConversionUtil.extractIpv4AddressMask(ipv4Prefix));
129 return normalizeIpv4Address(address, mask);
133 * Normalize Ipv4 address and arbitrary mask and apply arbitrary mask to Ipv4 address.
135 * @param ipv4Address the Ipv4 address
136 * @param ipv4Mask the Ipv4 mask
137 * @return normalized Ipv4 prefix
140 public static Ipv4Prefix normalizeIpv4Arbitrary(@Nullable final Ipv4Address ipv4Address,
141 @Nullable final DottedQuad ipv4Mask) {
142 if (Objects.isNull(ipv4Address)) {
146 final byte[] address = IetfInetUtil.INSTANCE.ipv4AddressBytes(ipv4Address);
147 final byte[] mask = IpConversionUtil.convertArbitraryMaskToByteArray(ipv4Mask);
148 return normalizeIpv4Address(address, mask);
152 * Normalize Ipv4 address and arbitrary mask in byte array format and apply arbitrary mask to Ipv4 address.
154 * @param address Ipv4 address byte array
155 * @param mask Ipv4 mask byte array
156 * @return normalized Ipv4 prefix
159 public static Ipv4Prefix normalizeIpv4Address(@Nullable final byte[] address, @Nullable final byte[] mask) {
160 final String addressPrefix = normalizeInetAddressWithMask(normalizeIpAddress(address, mask), mask);
162 if (Objects.isNull(addressPrefix)) {
166 return new Ipv4Prefix(addressPrefix);
171 * Normalize Ipv6 address and arbitrary mask in byte array format and apply arbitrary mask to Ipv6 address.
173 * @param address Ipv6 address byte array
174 * @param mask Ipv6 mask byte array
175 * @return normalized Ipv6 prefix
178 public static Ipv6Prefix normalizeIpv6Address(@Nullable final byte[] address, @Nullable final byte[] mask) {
179 final String addressPrefix = normalizeInetAddressWithMask(normalizeIpAddress(address, mask), mask);
181 if (Objects.isNull(addressPrefix)) {
185 return new Ipv6Prefix(addressPrefix);
189 * Normalize generic IP address and arbitrary mask in byte array format and apply arbitrary mask to IP address.
191 * @param address address byte array
192 * @param mask mask byte array
193 * @return normalized Inet address
196 public static InetAddress normalizeIpAddress(@Nullable final byte[] address, @Nullable final byte[] mask) {
197 if (Objects.isNull(address)) {
201 final byte[] result = new byte[address.length];
203 for (int i = 0; i < address.length; i++) {
204 result[i] = Objects.nonNull(mask)
205 ? (byte) (address[i] & mask[i])
210 return InetAddress.getByAddress(result);
211 } catch (UnknownHostException e) {
212 LOG.warn("Failed to recognize the host while normalizing IP address from bytes ", e);
218 * Convert arbitrary mask to prefix mask and append it to textual representation of Inet address.
220 * @param address the address
221 * @param mask the mask
225 public static String normalizeInetAddressWithMask(@Nullable final InetAddress address,
226 @Nullable final byte[] mask) {
227 if (Objects.isNull(address)) {
231 return address.getHostAddress()
232 + (Objects.nonNull(mask)
233 ? PREFIX_SEPARATOR + String.valueOf(IpConversionUtil.countBits(mask))
238 * Convert MAC address to it's lower case format.
240 * @param macAddress the MAC address
241 * @return normalized MAC address
244 public static MacAddress normalizeMacAddress(@Nullable final MacAddress macAddress) {
245 if (Objects.isNull(macAddress)) {
249 return new MacAddress(macAddress.getValue().toLowerCase(Locale.ROOT));
253 * Convert MAC address mask to it's lower case format and if it is full F mask, return null.
255 * @param macAddress the MAC address
256 * @return normalized MAC address
259 public static MacAddress normalizeMacAddressMask(@Nullable final MacAddress macAddress) {
260 final MacAddress normalizedMacAddress = normalizeMacAddress(macAddress);
262 if (Objects.isNull(normalizedMacAddress)) {
266 if (NO_ETH_MASK.equals(normalizedMacAddress.getValue())) {
270 return normalizedMacAddress;