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
8 package org.opendaylight.openflowplugin.impl.util;
10 import java.net.InetAddress;
11 import java.net.UnknownHostException;
12 import java.util.Locale;
13 import javax.annotation.Nullable;
14 import org.opendaylight.openflowplugin.api.openflow.md.util.OpenflowVersion;
15 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.common.IpConversionUtil;
16 import org.opendaylight.openflowplugin.openflow.md.util.InventoryDataServiceUtil;
17 import org.opendaylight.openflowplugin.openflow.md.util.OpenflowPortsUtil;
18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IetfInetUtil;
19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Uri;
24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DottedQuad;
25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.MacAddress;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.opendaylight.ipv6.arbitrary.bitmask.fields.rev160224.Ipv6ArbitraryMask;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
31 * Utility class used for converting OpenFlow port numbers, Ipv4 and Ipv6 addresses to normalized format.
33 public final class AddressNormalizationUtil {
34 private static final Logger LOG = LoggerFactory.getLogger(AddressNormalizationUtil.class);
36 private static final String NO_ETH_MASK = "ff:ff:ff:ff:ff:ff";
37 private static final String PREFIX_SEPARATOR = "/";
39 private AddressNormalizationUtil() {
43 * Extract port number from URI and convert it to OpenFlow specific textual representation.
45 * @param port the OpenFlow port
46 * @param protocolVersion the OpenFLow protocol version
47 * @return normalized uri
50 public static Uri normalizeProtocolAgnosticPort(@Nullable final Uri port, final short protocolVersion) {
55 Long portValue = InventoryDataServiceUtil
56 .portNumberfromNodeConnectorId(OpenflowVersion.get(protocolVersion), port.getValue());
58 return portValue == null ? null : OpenflowPortsUtil.getProtocolAgnosticPortUri(protocolVersion, portValue);
62 * Normalize Ipv6 address with prefix mask (ex. 1234:5678:9ABC::/76) and apply prefix mask to Ipv6 address.
64 * @param ipv6Prefix the Ipv6 prefix
65 * @return normalized Ipv6 prefix
68 public static Ipv6Prefix normalizeIpv6Prefix(@Nullable final Ipv6Prefix ipv6Prefix) {
69 if (ipv6Prefix == null) {
73 final byte[] address = IetfInetUtil.INSTANCE.ipv6AddressBytes(IpConversionUtil.extractIpv6Address(ipv6Prefix));
75 IpConversionUtil.convertIpv6PrefixToByteArray(IpConversionUtil.extractIpv6Prefix(ipv6Prefix));
76 return normalizeIpv6Address(address, mask);
80 * Normalize Ipv6 address and arbitrary mask and apply arbitrary mask to Ipv6 address.
82 * @param ipv6Address the Ipv4 address
83 * @param ipv4Mask the Ipv4 mask
84 * @return normalized Ipv6 prefix
87 public static Ipv6Prefix normalizeIpv6Arbitrary(@Nullable final Ipv6Address ipv6Address,
88 @Nullable final Ipv6ArbitraryMask ipv4Mask) {
89 if (ipv6Address == null) {
93 final byte[] address = IetfInetUtil.INSTANCE.ipv6AddressBytes(ipv6Address);
94 final byte[] mask = IpConversionUtil.convertIpv6ArbitraryMaskToByteArray(ipv4Mask);
95 return normalizeIpv6Address(address, mask);
99 * Normalize ipv 6 address without mask.
101 * @param ipv6Address the Ipv6 address
102 * @return normalized Ipv6 address
105 public static Ipv6Address normalizeIpv6AddressWithoutMask(@Nullable final Ipv6Address ipv6Address) {
106 final Ipv6Prefix ipv6Prefix = normalizeIpv6Arbitrary(ipv6Address, null);
107 return ipv6Prefix == null ? null : new Ipv6Address(ipv6Prefix.getValue().split(PREFIX_SEPARATOR)[0]);
111 * Normalize Ipv4 address with prefix mask (ex. 192.168.0.1/24) and apply prefix mask to Ipv4 address.
113 * @param ipv4Prefix the Ipv4 prefix
114 * @return normalized Ipv4 prefix
117 public static Ipv4Prefix normalizeIpv4Prefix(@Nullable final Ipv4Prefix ipv4Prefix) {
118 if (ipv4Prefix == null) {
122 final byte[] address = IetfInetUtil.INSTANCE.ipv4AddressBytes(IpConversionUtil.extractIpv4Address(ipv4Prefix));
124 IpConversionUtil.convertArbitraryMaskToByteArray(IpConversionUtil.extractIpv4AddressMask(ipv4Prefix));
125 return normalizeIpv4Address(address, mask);
129 * Normalize Ipv4 address and arbitrary mask and apply arbitrary mask to Ipv4 address.
131 * @param ipv4Address the Ipv4 address
132 * @param ipv4Mask the Ipv4 mask
133 * @return normalized Ipv4 prefix
136 public static Ipv4Prefix normalizeIpv4Arbitrary(@Nullable final Ipv4Address ipv4Address,
137 @Nullable final DottedQuad ipv4Mask) {
138 if (ipv4Address == null) {
142 final byte[] address = IetfInetUtil.INSTANCE.ipv4AddressBytes(ipv4Address);
143 final byte[] mask = IpConversionUtil.convertArbitraryMaskToByteArray(ipv4Mask);
144 return normalizeIpv4Address(address, mask);
148 * Normalize Ipv4 address and arbitrary mask in byte array format and apply arbitrary mask to Ipv4 address.
150 * @param address Ipv4 address byte array
151 * @param mask Ipv4 mask byte array
152 * @return normalized Ipv4 prefix
155 public static Ipv4Prefix normalizeIpv4Address(@Nullable final byte[] address, @Nullable final byte[] mask) {
156 final String addressPrefix = normalizeInetAddressWithMask(normalizeIpAddress(address, mask), mask);
158 if (addressPrefix == null) {
162 return new Ipv4Prefix(addressPrefix);
167 * Normalize Ipv6 address and arbitrary mask in byte array format and apply arbitrary mask to Ipv6 address.
169 * @param address Ipv6 address byte array
170 * @param mask Ipv6 mask byte array
171 * @return normalized Ipv6 prefix
174 public static Ipv6Prefix normalizeIpv6Address(@Nullable final byte[] address, @Nullable final byte[] mask) {
175 final String addressPrefix = normalizeInetAddressWithMask(normalizeIpAddress(address, mask), mask);
177 if (addressPrefix == null) {
181 return new Ipv6Prefix(addressPrefix);
185 * Normalize generic IP address and arbitrary mask in byte array format and apply arbitrary mask to IP address.
187 * @param address address byte array
188 * @param mask mask byte array
189 * @return normalized Inet address
192 public static InetAddress normalizeIpAddress(@Nullable final byte[] address, @Nullable final byte[] mask) {
193 if (address == null) {
197 final byte[] result = new byte[address.length];
199 for (int i = 0; i < address.length; i++) {
200 result[i] = mask != null ? (byte) (address[i] & mask[i]) : address[i];
204 return InetAddress.getByAddress(result);
205 } catch (UnknownHostException e) {
206 LOG.warn("Failed to recognize the host while normalizing IP address from bytes ", e);
212 * Convert arbitrary mask to prefix mask and append it to textual representation of Inet address.
214 * @param address the address
215 * @param mask the mask
219 public static String normalizeInetAddressWithMask(@Nullable final InetAddress address,
220 @Nullable final byte[] mask) {
221 if (address == null) {
225 return address.getHostAddress()
226 + (mask == null ? "" : PREFIX_SEPARATOR + String.valueOf(IpConversionUtil.countBits(mask)));
230 * Convert MAC address to it's lower case format.
232 * @param macAddress the MAC address
233 * @return normalized MAC address
236 public static MacAddress normalizeMacAddress(@Nullable final MacAddress macAddress) {
237 return macAddress == null ? null : new MacAddress(macAddress.getValue().toLowerCase(Locale.ROOT));
241 * Convert MAC address mask to it's lower case format and if it is full F mask, return null.
243 * @param macAddress the MAC address
244 * @return normalized MAC address
247 public static MacAddress normalizeMacAddressMask(@Nullable final MacAddress macAddress) {
248 final MacAddress normalizedMacAddress = normalizeMacAddress(macAddress);
250 if (normalizedMacAddress == null) {
254 if (NO_ETH_MASK.equals(normalizedMacAddress.getValue())) {
258 return normalizedMacAddress;