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.vpp.util.ByteDataTranslator;
26 import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer;
27 import io.fd.vpp.jvpp.core.dto.SwInterfaceDetails;
28 import io.fd.vpp.jvpp.core.dto.SwInterfaceDetailsReplyDump;
29 import io.fd.vpp.jvpp.core.dto.SwInterfaceDump;
30 import io.fd.vpp.jvpp.core.future.FutureJVppCore;
31 import java.math.BigInteger;
33 import java.util.Objects;
34 import java.util.concurrent.CompletionStage;
35 import java.util.stream.Collector;
36 import java.util.stream.Collectors;
37 import javax.annotation.Nonnull;
38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.EthernetCsmacd;
39 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfaceType;
40 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface;
41 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Gauge64;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.GreTunnel;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.Tap;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VhostUser;
45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanGpeTunnel;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanTunnel;
47 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
48 import org.slf4j.Logger;
50 public interface InterfaceDataTranslator extends ByteDataTranslator, JvppReplyConsumer {
52 Gauge64 vppLinkSpeed0 = new Gauge64(BigInteger.ZERO);
53 Gauge64 vppLinkSpeed1 = new Gauge64(BigInteger.valueOf(10L * 1000000));
54 Gauge64 vppLinkSpeed2 = new Gauge64(BigInteger.valueOf(100L * 1000000));
55 Gauge64 vppLinkSpeed4 = new Gauge64(BigInteger.valueOf(1000L * 1000000));
56 Gauge64 vppLinkSpeed8 = new Gauge64(BigInteger.valueOf(10000L * 1000000));
57 Gauge64 vppLinkSpeed16 = new Gauge64(BigInteger.valueOf(40000L * 1000000));
58 Gauge64 vppLinkSpeed32 = new Gauge64(BigInteger.valueOf(100000L * 1000000));
60 char[] HEX_CHARS = "0123456789abcdef".toCharArray();
62 int PHYSICAL_ADDRESS_LENGTH = 6;
64 Collector<SwInterfaceDetails, ?, SwInterfaceDetails> SINGLE_ITEM_COLLECTOR =
65 RWUtils.singleItemCollector();
68 * Convert VPP's link speed bitmask to Yang type. 1 = 10M, 2 = 100M, 4 = 1G, 8 = 10G, 16 = 40G, 32 = 100G
70 * @param vppLinkSpeed Link speed in bitmask format from VPP.
71 * @return Converted value from VPP link speed
73 default Gauge64 vppInterfaceSpeedToYang(byte vppLinkSpeed) {
74 switch (vppLinkSpeed) {
84 return vppLinkSpeed16;
86 return vppLinkSpeed32;
92 default void appendHexByte(final StringBuilder sb, final byte b) {
93 final int v = b & 0xFF;
94 sb.append(HEX_CHARS[v >>> 4]);
95 sb.append(HEX_CHARS[v & 15]);
99 * Reads first 6 bytes of supplied byte array and converts to string as Yang dictates <p> Replace later with
100 * https://git.opendaylight.org/gerrit/#/c/34869/10/model/ietf/ietf-type- util/src/main/
101 * java/org/opendaylight/mdsal/model/ietf/util/AbstractIetfYangUtil.java
103 * @param vppPhysAddress byte array of bytes in big endian order, constructing the network IF physical address.
104 * @return String like "aa:bb:cc:dd:ee:ff"
105 * @throws NullPointerException if vppPhysAddress is null
106 * @throws IllegalArgumentException if vppPhysAddress.length < 6
108 default String vppPhysAddrToYang(@Nonnull final byte[] vppPhysAddress) {
109 return vppPhysAddrToYang(vppPhysAddress, 0);
112 default String vppPhysAddrToYang(@Nonnull final byte[] vppPhysAddress, final int startIndex) {
113 Objects.requireNonNull(vppPhysAddress, "Empty physical address bytes");
114 final int endIndex = startIndex + PHYSICAL_ADDRESS_LENGTH;
115 checkArgument(endIndex <= vppPhysAddress.length,
116 "Invalid physical address size (%s) for given startIndex (%s), expected >= %s", vppPhysAddress.length,
117 startIndex, endIndex);
118 return printHexBinary(vppPhysAddress, startIndex, endIndex);
121 default String printHexBinary(@Nonnull final byte[] bytes) {
122 Objects.requireNonNull(bytes, "bytes array should not be null");
123 return printHexBinary(bytes, 0, bytes.length);
126 default String printHexBinary(@Nonnull final byte[] bytes, final int startIndex, final int endIndex) {
127 StringBuilder str = new StringBuilder();
129 appendHexByte(str, bytes[startIndex]);
130 for (int i = startIndex + 1; i < endIndex; i++) {
132 appendHexByte(str, bytes[i]);
135 return str.toString();
139 * VPP's interface index is counted from 0, whereas ietf-interface's if-index is from 1. This function converts from
140 * VPP's interface index to YANG's interface index.
142 * @param vppIfIndex the sw interface index VPP reported.
143 * @return VPP's interface index incremented by one
145 default int vppIfIndexToYang(int vppIfIndex) {
146 return vppIfIndex + 1;
150 * This function does the opposite of what {@link #vppIfIndexToYang(int)} does.
152 * @param yangIfIndex if-index from ietf-interfaces.
153 * @return VPP's representation of the if-index
155 default int yangIfIndexToVpp(int yangIfIndex) {
156 checkArgument(yangIfIndex >= 1, "YANG if-index has invalid value %s", yangIfIndex);
157 return yangIfIndex - 1;
162 * Queries VPP for interface description given interface key.
164 * @param futureJVppCore VPP Java Future API
165 * @param id InstanceIdentifier, which is passed in ReadFailedException
166 * @param name interface name
167 * @param index VPP index of the interface
168 * @param ctx per-tx scope context containing cached dump with all the interfaces. If the cache is not
169 * available or outdated, another dump will be performed.
170 * @return SwInterfaceDetails DTO or null if interface was not found
171 * @throws IllegalArgumentException If interface cannot be found
172 * @throws ReadFailedException If read operation had failed
175 default SwInterfaceDetails getVppInterfaceDetails(@Nonnull final FutureJVppCore futureJVppCore,
176 @Nonnull final InstanceIdentifier<?> id,
177 @Nonnull final String name, final int index,
178 @Nonnull final ModificationCache ctx,
179 @Nonnull final Logger callerLogger)
180 throws ReadFailedException {
181 requireNonNull(futureJVppCore, "futureJVppCore should not be null");
182 requireNonNull(name, "name should not be null");
183 requireNonNull(ctx, "ctx should not be null");
185 final SwInterfaceDump request = new SwInterfaceDump();
186 request.nameFilter = name.getBytes();
187 request.nameFilterValid = 1;
189 final Map<Integer, SwInterfaceDetails> allInterfaces = InterfaceCustomizer.getCachedInterfaceDump(ctx);
191 // Returned cached if available
192 if (allInterfaces.containsKey(index)) {
193 return allInterfaces.get(index);
196 SwInterfaceDetailsReplyDump ifaces;
198 CompletionStage<SwInterfaceDetailsReplyDump> requestFuture = futureJVppCore.swInterfaceDump(request);
199 ifaces = getReplyForRead(requestFuture.toCompletableFuture(), id);
200 if (null == ifaces || null == ifaces.swInterfaceDetails || ifaces.swInterfaceDetails.isEmpty()) {
201 request.nameFilterValid = 0;
203 callerLogger.warn("VPP returned null instead of interface by key {} and its not cached", name);
204 callerLogger.warn("Iterating through all the interfaces to find interface: {}", name);
206 // Or else just perform full dump and do inefficient filtering
207 requestFuture = futureJVppCore.swInterfaceDump(request);
208 ifaces = getReplyForRead(requestFuture.toCompletableFuture(), id);
211 allInterfaces.clear();
213 .putAll(ifaces.swInterfaceDetails.stream().collect(Collectors.toMap(d -> d.swIfIndex, d -> d)));
215 if (allInterfaces.containsKey(index)) {
216 return allInterfaces.get(index);
218 throw new IllegalArgumentException("Unable to find interface " + name);
221 // SwInterfaceDump's name filter does prefix match, so we need additional filtering:
222 final SwInterfaceDetails iface =
223 ifaces.swInterfaceDetails.stream().filter(d -> d.swIfIndex == index).collect(SINGLE_ITEM_COLLECTOR);
224 allInterfaces.put(index, iface); // update the cache
229 * Determine interface type based on its VPP name (relying on VPP's interface naming conventions)
231 * @param interfaceName VPP generated interface name
232 * @return Interface type
235 default Class<? extends InterfaceType> getInterfaceType(@Nonnull final String interfaceName) {
236 if (interfaceName.startsWith("tap")) {
240 if (interfaceName.startsWith("vxlan_gpe")) {
241 return VxlanGpeTunnel.class;
244 if (interfaceName.startsWith("vxlan")) {
245 return VxlanTunnel.class;
248 if (interfaceName.startsWith("gre")) {
249 return GreTunnel.class;
252 if (interfaceName.startsWith("VirtualEthernet")) {
253 return VhostUser.class;
256 return EthernetCsmacd.class;
260 * Check interface type. Uses interface details from VPP to determine. Uses {@link
261 * #getVppInterfaceDetails(FutureJVppCore, InstanceIdentifier, String, int, ModificationCache, Logger)} internally
262 * so tries to utilize cache before asking VPP.
264 default boolean isInterfaceOfType(@Nonnull final FutureJVppCore jvpp,
265 @Nonnull final ModificationCache cache,
266 @Nonnull final InstanceIdentifier<?> id,
268 @Nonnull final Class<? extends InterfaceType> ifcType,
269 @Nonnull final Logger callerLogger)
270 throws ReadFailedException {
271 final String name = id.firstKeyOf(Interface.class).getName();
272 final SwInterfaceDetails vppInterfaceDetails =
273 getVppInterfaceDetails(jvpp, id, name, index, cache, callerLogger);
275 return isInterfaceOfType(ifcType, vppInterfaceDetails);
278 default boolean isInterfaceOfType(final Class<? extends InterfaceType> ifcType,
279 final SwInterfaceDetails cachedDetails) {
280 return ifcType.equals(getInterfaceType(toString(cachedDetails.interfaceName)));