2 * Copyright (c) 2016 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package io.fd.honeycomb.translate.v3po.interfacesstate;
19 import static com.google.common.base.Preconditions.checkArgument;
20 import static java.util.Objects.requireNonNull;
22 import io.fd.honeycomb.translate.ModificationCache;
23 import io.fd.honeycomb.translate.read.ReadFailedException;
24 import io.fd.honeycomb.translate.util.RWUtils;
25 import io.fd.honeycomb.translate.v3po.util.TranslateUtils;
26 import java.math.BigInteger;
28 import java.util.Objects;
29 import java.util.concurrent.CompletionStage;
30 import java.util.stream.Collector;
31 import java.util.stream.Collectors;
32 import javax.annotation.Nonnull;
33 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.EthernetCsmacd;
34 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfaceType;
35 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
36 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Gauge64;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.Tap;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VhostUser;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanGpeTunnel;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanTunnel;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.GreTunnel;
42 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
43 import org.openvpp.jvpp.VppBaseCallException;
44 import org.openvpp.jvpp.dto.SwInterfaceDetails;
45 import org.openvpp.jvpp.dto.SwInterfaceDetailsReplyDump;
46 import org.openvpp.jvpp.dto.SwInterfaceDump;
47 import org.openvpp.jvpp.future.FutureJVpp;
48 import org.slf4j.Logger;
49 import org.slf4j.LoggerFactory;
51 public final class InterfaceUtils {
52 private static final Logger LOG = LoggerFactory.getLogger(InterfaceUtils.class);
54 private static final Gauge64 vppLinkSpeed0 = new Gauge64(BigInteger.ZERO);
55 private static final Gauge64 vppLinkSpeed1 = new Gauge64(BigInteger.valueOf(10L * 1000000));
56 private static final Gauge64 vppLinkSpeed2 = new Gauge64(BigInteger.valueOf(100L * 1000000));
57 private static final Gauge64 vppLinkSpeed4 = new Gauge64(BigInteger.valueOf(1000L * 1000000));
58 private static final Gauge64 vppLinkSpeed8 = new Gauge64(BigInteger.valueOf(10000L * 1000000));
59 private static final Gauge64 vppLinkSpeed16 = new Gauge64(BigInteger.valueOf(40000L * 1000000));
60 private static final Gauge64 vppLinkSpeed32 = new Gauge64(BigInteger.valueOf(100000L * 1000000));
62 private static final char[] HEX_CHARS = "0123456789abcdef".toCharArray();
64 private static final int PHYSICAL_ADDRESS_LENGTH = 6;
66 private static final Collector<SwInterfaceDetails, ?, SwInterfaceDetails> SINGLE_ITEM_COLLECTOR =
67 RWUtils.singleItemCollector();
69 private InterfaceUtils() {
70 throw new UnsupportedOperationException("This utility class cannot be instantiated");
74 * Convert VPP's link speed bitmask to Yang type. 1 = 10M, 2 = 100M, 4 = 1G, 8 = 10G, 16 = 40G, 32 = 100G
76 * @param vppLinkSpeed Link speed in bitmask format from VPP.
77 * @return Converted value from VPP link speed
79 public static Gauge64 vppInterfaceSpeedToYang(byte vppLinkSpeed) {
80 switch (vppLinkSpeed) {
90 return vppLinkSpeed16;
92 return vppLinkSpeed32;
98 private static final void appendHexByte(final StringBuilder sb, final byte b) {
99 final int v = b & 0xFF;
100 sb.append(HEX_CHARS[v >>> 4]);
101 sb.append(HEX_CHARS[v & 15]);
104 // TODO rename and move to V3poUtils
107 * Reads first 6 bytes of supplied byte array and converts to string as Yang dictates <p> Replace later with
108 * https://git.opendaylight.org/gerrit/#/c/34869/10/model/ietf/ietf-type- util/src/main/
109 * java/org/opendaylight/mdsal/model/ietf/util/AbstractIetfYangUtil.java
111 * @param vppPhysAddress byte array of bytes in big endian order, constructing the network IF physical address.
112 * @return String like "aa:bb:cc:dd:ee:ff"
113 * @throws NullPointerException if vppPhysAddress is null
114 * @throws IllegalArgumentException if vppPhysAddress.length < 6
116 public static String vppPhysAddrToYang(@Nonnull final byte[] vppPhysAddress) {
117 return vppPhysAddrToYang(vppPhysAddress, 0);
120 public static String vppPhysAddrToYang(@Nonnull final byte[] vppPhysAddress, final int startIndex) {
121 Objects.requireNonNull(vppPhysAddress, "Empty physical address bytes");
122 final int endIndex = startIndex + PHYSICAL_ADDRESS_LENGTH;
123 checkArgument(endIndex <= vppPhysAddress.length,
124 "Invalid physical address size (%s) for given startIndex (%s), expected >= %s", vppPhysAddress.length,
125 startIndex, endIndex);
126 return printHexBinary(vppPhysAddress, startIndex, endIndex);
129 public static String printHexBinary(@Nonnull final byte[] bytes) {
130 Objects.requireNonNull(bytes, "bytes array should not be null");
131 return printHexBinary(bytes, 0, bytes.length);
134 private static String printHexBinary(@Nonnull final byte[] bytes, final int startIndex, final int endIndex) {
135 StringBuilder str = new StringBuilder();
137 appendHexByte(str, bytes[startIndex]);
138 for (int i = startIndex + 1; i < endIndex; i++) {
140 appendHexByte(str, bytes[i]);
143 return str.toString();
147 * VPP's interface index is counted from 0, whereas ietf-interface's if-index is from 1. This function converts from
148 * VPP's interface index to YANG's interface index.
150 * @param vppIfIndex the sw interface index VPP reported.
151 * @return VPP's interface index incremented by one
153 public static int vppIfIndexToYang(int vppIfIndex) {
154 return vppIfIndex + 1;
158 * This function does the opposite of what {@link #vppIfIndexToYang(int)} does.
160 * @param yangIfIndex if-index from ietf-interfaces.
161 * @return VPP's representation of the if-index
163 public static int yangIfIndexToVpp(int yangIfIndex) {
164 checkArgument(yangIfIndex >= 1, "YANG if-index has invalid value %s", yangIfIndex);
165 return yangIfIndex - 1;
170 * Queries VPP for interface description given interface key.
172 * @param futureJvpp VPP Java Future API
173 * @param id InstanceIdentifier, which is passed in ReadFailedException
174 * @param name interface name
175 * @param index VPP index of the interface
176 * @param ctx per-tx scope context containing cached dump with all the interfaces. If the cache is not
177 * available or outdated, another dump will be performed.
178 * @return SwInterfaceDetails DTO or null if interface was not found
179 * @throws IllegalArgumentException If interface cannot be found
180 * @throws ReadFailedException If read operation had failed
183 public static SwInterfaceDetails getVppInterfaceDetails(@Nonnull final FutureJVpp futureJvpp,
184 @Nonnull final InstanceIdentifier<?> id,
185 @Nonnull final String name, final int index,
186 @Nonnull final ModificationCache ctx)
187 throws ReadFailedException {
188 requireNonNull(futureJvpp, "futureJvpp should not be null");
189 requireNonNull(name, "name should not be null");
190 requireNonNull(ctx, "ctx should not be null");
192 final SwInterfaceDump request = new SwInterfaceDump();
193 request.nameFilter = name.getBytes();
194 request.nameFilterValid = 1;
196 final Map<Integer, SwInterfaceDetails> allInterfaces = InterfaceCustomizer.getCachedInterfaceDump(ctx);
198 // Returned cached if available
199 if (allInterfaces.containsKey(index)) {
200 return allInterfaces.get(index);
203 SwInterfaceDetailsReplyDump ifaces;
205 CompletionStage<SwInterfaceDetailsReplyDump> requestFuture = futureJvpp.swInterfaceDump(request);
206 ifaces = TranslateUtils.getReplyForRead(requestFuture.toCompletableFuture(), id);
207 if (null == ifaces || null == ifaces.swInterfaceDetails || ifaces.swInterfaceDetails.isEmpty()) {
208 request.nameFilterValid = 0;
210 LOG.warn("VPP returned null instead of interface by key {} and its not cached", name);
211 LOG.warn("Iterating through all the interfaces to find interface: {}", name);
213 // Or else just perform full dump and do inefficient filtering
214 requestFuture = futureJvpp.swInterfaceDump(request);
215 ifaces = TranslateUtils.getReplyForRead(requestFuture.toCompletableFuture(), id);
218 allInterfaces.clear();
220 .putAll(ifaces.swInterfaceDetails.stream().collect(Collectors.toMap(d -> d.swIfIndex, d -> d)));
222 if (allInterfaces.containsKey(index)) {
223 return allInterfaces.get(index);
225 throw new IllegalArgumentException("Unable to find interface " + name);
227 } catch (VppBaseCallException e) {
228 LOG.warn("getVppInterfaceDetails for id :{} and name :{} failed with exception :", id, name, e);
229 throw new ReadFailedException(id, e);
232 // SwInterfaceDump's name filter does prefix match, so we need additional filtering:
233 final SwInterfaceDetails iface =
234 ifaces.swInterfaceDetails.stream().filter(d -> d.swIfIndex == index).collect(SINGLE_ITEM_COLLECTOR);
235 allInterfaces.put(index, iface); // update the cache
240 * Determine interface type based on its VPP name (relying on VPP's interface naming conventions)
242 * @param interfaceName VPP generated interface name
243 * @return Interface type
246 public static Class<? extends InterfaceType> getInterfaceType(@Nonnull final String interfaceName) {
247 if (interfaceName.startsWith("tap")) {
251 if (interfaceName.startsWith("vxlan_gpe")) {
252 return VxlanGpeTunnel.class;
255 if (interfaceName.startsWith("vxlan")) {
256 return VxlanTunnel.class;
259 if (interfaceName.startsWith("gre")) {
260 return GreTunnel.class;
263 if (interfaceName.startsWith("VirtualEthernet")) {
264 return VhostUser.class;
267 return EthernetCsmacd.class;
271 * Check interface type. Uses interface details from VPP to determine. Uses {@link
272 * #getVppInterfaceDetails(FutureJVpp, InstanceIdentifier, String, int, ModificationCache)} internally so tries to
273 * utilize cache before asking VPP.
275 static boolean isInterfaceOfType(@Nonnull final FutureJVpp jvpp,
276 @Nonnull final ModificationCache cache,
277 @Nonnull final InstanceIdentifier<?> id,
279 @Nonnull final Class<? extends InterfaceType> ifcType) throws ReadFailedException {
280 final String name = id.firstKeyOf(Interface.class).getName();
281 final SwInterfaceDetails vppInterfaceDetails =
282 getVppInterfaceDetails(jvpp, id, name, index, cache);
284 return isInterfaceOfType(ifcType, vppInterfaceDetails);
287 static boolean isInterfaceOfType(final Class<? extends InterfaceType> ifcType,
288 final SwInterfaceDetails cachedDetails) {
289 return ifcType.equals(getInterfaceType(TranslateUtils.toString(cachedDetails.interfaceName)));