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.Objects;
14 import javax.annotation.Nullable;
15 import org.opendaylight.openflowplugin.api.openflow.md.util.OpenflowVersion;
16 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.IpConversionUtil;
17 import org.opendaylight.openflowplugin.openflow.md.util.InventoryDataServiceUtil;
18 import org.opendaylight.openflowplugin.openflow.md.util.OpenflowPortsUtil;
19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IetfInetUtil;
20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DottedQuad;
26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.opendaylight.ipv6.arbitrary.bitmask.fields.rev160224.Ipv6ArbitraryMask;
28 import org.slf4j.Logger;
29 import org.slf4j.LoggerFactory;
32 * Utility class used for converting OpenFlow port numbers, Ipv4 and Ipv6 addresses to normalized format.
34 public class AddressNormalizationUtil {
35 private static final Logger LOG = LoggerFactory.getLogger(AddressNormalizationUtil.class);
37 private static final String NO_ETH_MASK = "ff:ff:ff:ff:ff:ff";
38 private static final String PREFIX_SEPARATOR = "/";
41 * Extract port number from URI and convert it to OpenFlow specific textual representation.
43 * @param port the OpenFlow port
44 * @param protocolVersion the OpenFLow protocol version
45 * @return normalized uri
48 public static Uri normalizeProtocolAgnosticPort(@Nullable final Uri port, final short protocolVersion) {
49 if (Objects.isNull(port)) {
53 Long portValue = InventoryDataServiceUtil
54 .portNumberfromNodeConnectorId(OpenflowVersion.get(protocolVersion), port.getValue());
56 return portValue == null ? null : OpenflowPortsUtil.getProtocolAgnosticPortUri(protocolVersion, portValue);
60 * Normalize Ipv6 address with prefix mask (ex. 1234:5678:9ABC::/76) and apply prefix mask to Ipv6 address.
62 * @param ipv6Prefix the Ipv6 prefix
63 * @return normalized Ipv6 prefix
66 public static Ipv6Prefix normalizeIpv6Prefix(@Nullable final Ipv6Prefix ipv6Prefix) {
67 if (Objects.isNull(ipv6Prefix)) {
71 final byte[] address = IetfInetUtil.INSTANCE.ipv6AddressBytes(IpConversionUtil.extractIpv6Address(ipv6Prefix));
72 final byte[] mask = IpConversionUtil.convertIpv6PrefixToByteArray(IpConversionUtil.extractIpv6Prefix(ipv6Prefix));
73 return normalizeIpv6Address(address, mask);
77 * Normalize Ipv6 address and arbitrary mask and apply arbitrary mask to Ipv6 address.
79 * @param ipv6Address the Ipv4 address
80 * @param ipv4Mask the Ipv4 mask
81 * @return normalized Ipv6 prefix
84 public static Ipv6Prefix normalizeIpv6Arbitrary(@Nullable final Ipv6Address ipv6Address, @Nullable final Ipv6ArbitraryMask ipv4Mask) {
85 if (Objects.isNull(ipv6Address)) {
89 final byte[] address = IetfInetUtil.INSTANCE.ipv6AddressBytes(ipv6Address);
90 final byte[] mask = IpConversionUtil.convertIpv6ArbitraryMaskToByteArray(ipv4Mask);
91 return normalizeIpv6Address(address, mask);
95 * Normalize ipv 6 address without mask.
97 * @param ipv6Address the Ipv6 address
98 * @return normalized Ipv6 address
101 public static Ipv6Address normalizeIpv6AddressWithoutMask(@Nullable final Ipv6Address ipv6Address) {
102 final Ipv6Prefix ipv6Prefix = normalizeIpv6Arbitrary(ipv6Address, null);
103 return Objects.nonNull(ipv6Prefix)
104 ? new Ipv6Address(ipv6Prefix.getValue().split(PREFIX_SEPARATOR)[0])
109 * Normalize Ipv4 address with prefix mask (ex. 192.168.0.1/24) and apply prefix mask to Ipv4 address.
111 * @param ipv4Prefix the Ipv4 prefix
112 * @return normalized Ipv4 prefix
115 public static Ipv4Prefix normalizeIpv4Prefix(@Nullable final Ipv4Prefix ipv4Prefix) {
116 if (Objects.isNull(ipv4Prefix)) {
120 final byte[] address = IetfInetUtil.INSTANCE.ipv4AddressBytes(IpConversionUtil.extractIpv4Address(ipv4Prefix));
121 final byte[] mask = IpConversionUtil.convertArbitraryMaskToByteArray(IpConversionUtil.extractIpv4AddressMask(ipv4Prefix));
122 return normalizeIpv4Address(address, mask);
126 * Normalize Ipv4 address and arbitrary mask and apply arbitrary mask to Ipv4 address.
128 * @param ipv4Address the Ipv4 address
129 * @param ipv4Mask the Ipv4 mask
130 * @return normalized Ipv4 prefix
133 public static Ipv4Prefix normalizeIpv4Arbitrary(@Nullable final Ipv4Address ipv4Address, @Nullable final DottedQuad ipv4Mask) {
134 if (Objects.isNull(ipv4Address)) {
138 final byte[] address = IetfInetUtil.INSTANCE.ipv4AddressBytes(ipv4Address);
139 final byte[] mask = IpConversionUtil.convertArbitraryMaskToByteArray(ipv4Mask);
140 return normalizeIpv4Address(address, mask);
144 * Normalize Ipv4 address and arbitrary mask in byte array format and apply arbitrary mask to Ipv4 address.
146 * @param address Ipv4 address byte array
147 * @param mask Ipv4 mask byte array
148 * @return normalized Ipv4 prefix
151 public static Ipv4Prefix normalizeIpv4Address(@Nullable final byte[] address, @Nullable final byte[] mask) {
152 final String addressPrefix = normalizeInetAddressWithMask(normalizeIpAddress(address, mask), mask);
154 if (Objects.isNull(addressPrefix)) {
158 return new Ipv4Prefix(addressPrefix);
163 * Normalize Ipv6 address and arbitrary mask in byte array format and apply arbitrary mask to Ipv6 address.
165 * @param address Ipv6 address byte array
166 * @param mask Ipv6 mask byte array
167 * @return normalized Ipv6 prefix
170 public static Ipv6Prefix normalizeIpv6Address(@Nullable final byte[] address, @Nullable final byte[] mask) {
171 final String addressPrefix = normalizeInetAddressWithMask(normalizeIpAddress(address, mask), mask);
173 if (Objects.isNull(addressPrefix)) {
177 return new Ipv6Prefix(addressPrefix);
181 * Normalize generic IP address and arbitrary mask in byte array format and apply arbitrary mask to IP address.
183 * @param address address byte array
184 * @param mask mask byte array
185 * @return normalized Inet address
188 public static InetAddress normalizeIpAddress(@Nullable final byte[] address, @Nullable final byte[] mask) {
189 if (Objects.isNull(address)) {
193 final byte[] result = new byte[address.length];
195 for (int i = 0; i < address.length; i++) {
196 result[i] = Objects.nonNull(mask) ?
197 (byte) (address[i] & mask[i]) :
202 return InetAddress.getByAddress(result);
203 } catch (UnknownHostException e) {
204 LOG.warn("Failed to recognize the host while normalizing IP address from bytes ", e);
210 * Convert arbitrary mask to prefix mask and append it to textual representation of Inet address
212 * @param address the address
213 * @param mask the mask
217 public static String normalizeInetAddressWithMask(@Nullable final InetAddress address, @Nullable final byte[] mask) {
218 if (Objects.isNull(address)) {
222 return address.getHostAddress() +
223 (Objects.nonNull(mask)
224 ? PREFIX_SEPARATOR + String.valueOf(IpConversionUtil.countBits(mask))
229 * Convert MAC address to it's lower case format
231 * @param macAddress the MAC address
232 * @return normalized MAC address
235 public static MacAddress normalizeMacAddress(@Nullable final MacAddress macAddress) {
236 if (Objects.isNull(macAddress)) {
240 return new MacAddress(macAddress.getValue().toLowerCase());
244 * Convert MAC address mask to it's lower case format and if it is full F mask, return null
246 * @param macAddress the MAC address
247 * @return normalized MAC address
250 public static MacAddress normalizeMacAddressMask(@Nullable final MacAddress macAddress) {
251 final MacAddress normalizedMacAddress = normalizeMacAddress(macAddress);
253 if (Objects.isNull(normalizedMacAddress)) {
257 if (NO_ETH_MASK.equals(normalizedMacAddress.getValue())) {
261 return normalizedMacAddress;