From e3c31cee916480b2d9d169c1f5afb1c42efaabe1 Mon Sep 17 00:00:00 2001 From: Maros Marsalek Date: Fri, 29 Jul 2016 16:27:12 +0200 Subject: HONEYCOMB-130: Rename infra packages(remove vpp/v3po) Change-Id: Ic5b90e397e3743623d01b206bc60bc5c7df6b981 Signed-off-by: Maros Marsalek --- .../v3po/interfacesstate/InterfaceUtils.java | 286 +++++++++++++++++++++ 1 file changed, 286 insertions(+) create mode 100644 v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceUtils.java (limited to 'v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceUtils.java') diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceUtils.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceUtils.java new file mode 100644 index 000000000..b7c1e518a --- /dev/null +++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/translate/v3po/interfacesstate/InterfaceUtils.java @@ -0,0 +1,286 @@ +/* + * Copyright (c) 2016 Cisco and/or its affiliates. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package io.fd.honeycomb.translate.v3po.interfacesstate; + +import static com.google.common.base.Preconditions.checkArgument; +import static java.util.Objects.requireNonNull; + +import io.fd.honeycomb.translate.ModificationCache; +import io.fd.honeycomb.translate.read.ReadFailedException; +import io.fd.honeycomb.translate.util.RWUtils; +import io.fd.honeycomb.translate.v3po.util.TranslateUtils; +import java.math.BigInteger; +import java.util.Map; +import java.util.Objects; +import java.util.concurrent.CompletionStage; +import java.util.stream.Collector; +import java.util.stream.Collectors; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.EthernetCsmacd; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfaceType; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Gauge64; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.Tap; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VhostUser; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanGpeTunnel; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.v3po.rev150105.VxlanTunnel; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.openvpp.jvpp.VppBaseCallException; +import org.openvpp.jvpp.dto.SwInterfaceDetails; +import org.openvpp.jvpp.dto.SwInterfaceDetailsReplyDump; +import org.openvpp.jvpp.dto.SwInterfaceDump; +import org.openvpp.jvpp.future.FutureJVpp; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public final class InterfaceUtils { + private static final Logger LOG = LoggerFactory.getLogger(InterfaceUtils.class); + + private static final Gauge64 vppLinkSpeed0 = new Gauge64(BigInteger.ZERO); + private static final Gauge64 vppLinkSpeed1 = new Gauge64(BigInteger.valueOf(10L * 1000000)); + private static final Gauge64 vppLinkSpeed2 = new Gauge64(BigInteger.valueOf(100L * 1000000)); + private static final Gauge64 vppLinkSpeed4 = new Gauge64(BigInteger.valueOf(1000L * 1000000)); + private static final Gauge64 vppLinkSpeed8 = new Gauge64(BigInteger.valueOf(10000L * 1000000)); + private static final Gauge64 vppLinkSpeed16 = new Gauge64(BigInteger.valueOf(40000L * 1000000)); + private static final Gauge64 vppLinkSpeed32 = new Gauge64(BigInteger.valueOf(100000L * 1000000)); + + private static final char[] HEX_CHARS = "0123456789abcdef".toCharArray(); + + private static final int PHYSICAL_ADDRESS_LENGTH = 6; + + private static final Collector SINGLE_ITEM_COLLECTOR = + RWUtils.singleItemCollector(); + + private InterfaceUtils() { + throw new UnsupportedOperationException("This utility class cannot be instantiated"); + } + + /** + * Convert VPP's link speed bitmask to Yang type. 1 = 10M, 2 = 100M, 4 = 1G, 8 = 10G, 16 = 40G, 32 = 100G + * + * @param vppLinkSpeed Link speed in bitmask format from VPP. + * @return Converted value from VPP link speed + */ + public static Gauge64 vppInterfaceSpeedToYang(byte vppLinkSpeed) { + switch (vppLinkSpeed) { + case 1: + return vppLinkSpeed1; + case 2: + return vppLinkSpeed2; + case 4: + return vppLinkSpeed4; + case 8: + return vppLinkSpeed8; + case 16: + return vppLinkSpeed16; + case 32: + return vppLinkSpeed32; + default: + return vppLinkSpeed0; + } + } + + private static final void appendHexByte(final StringBuilder sb, final byte b) { + final int v = b & 0xFF; + sb.append(HEX_CHARS[v >>> 4]); + sb.append(HEX_CHARS[v & 15]); + } + + // TODO rename and move to V3poUtils + + /** + * Reads first 6 bytes of supplied byte array and converts to string as Yang dictates

Replace later with + * https://git.opendaylight.org/gerrit/#/c/34869/10/model/ietf/ietf-type- util/src/main/ + * java/org/opendaylight/mdsal/model/ietf/util/AbstractIetfYangUtil.java + * + * @param vppPhysAddress byte array of bytes in big endian order, constructing the network IF physical address. + * @return String like "aa:bb:cc:dd:ee:ff" + * @throws NullPointerException if vppPhysAddress is null + * @throws IllegalArgumentException if vppPhysAddress.length < 6 + */ + public static String vppPhysAddrToYang(@Nonnull final byte[] vppPhysAddress) { + return vppPhysAddrToYang(vppPhysAddress, 0); + } + + public static String vppPhysAddrToYang(@Nonnull final byte[] vppPhysAddress, final int startIndex) { + Objects.requireNonNull(vppPhysAddress, "Empty physical address bytes"); + final int endIndex = startIndex + PHYSICAL_ADDRESS_LENGTH; + checkArgument(endIndex <= vppPhysAddress.length, + "Invalid physical address size (%s) for given startIndex (%s), expected >= %s", vppPhysAddress.length, + startIndex, endIndex); + return printHexBinary(vppPhysAddress, startIndex, endIndex); + } + + public static String printHexBinary(@Nonnull final byte[] bytes) { + Objects.requireNonNull(bytes, "bytes array should not be null"); + return printHexBinary(bytes, 0, bytes.length); + } + + private static String printHexBinary(@Nonnull final byte[] bytes, final int startIndex, final int endIndex) { + StringBuilder str = new StringBuilder(); + + appendHexByte(str, bytes[startIndex]); + for (int i = startIndex + 1; i < endIndex; i++) { + str.append(":"); + appendHexByte(str, bytes[i]); + } + + return str.toString(); + } + + /** + * VPP's interface index is counted from 0, whereas ietf-interface's if-index is from 1. This function converts from + * VPP's interface index to YANG's interface index. + * + * @param vppIfIndex the sw interface index VPP reported. + * @return VPP's interface index incremented by one + */ + public static int vppIfIndexToYang(int vppIfIndex) { + return vppIfIndex + 1; + } + + /** + * This function does the opposite of what {@link #vppIfIndexToYang(int)} does. + * + * @param yangIfIndex if-index from ietf-interfaces. + * @return VPP's representation of the if-index + */ + public static int yangIfIndexToVpp(int yangIfIndex) { + checkArgument(yangIfIndex >= 1, "YANG if-index has invalid value %s", yangIfIndex); + return yangIfIndex - 1; + } + + + /** + * Queries VPP for interface description given interface key. + * + * @param futureJvpp VPP Java Future API + * @param id InstanceIdentifier, which is passed in ReadFailedException + * @param name interface name + * @param index VPP index of the interface + * @param ctx per-tx scope context containing cached dump with all the interfaces. If the cache is not + * available or outdated, another dump will be performed. + * @return SwInterfaceDetails DTO or null if interface was not found + * @throws IllegalArgumentException If interface cannot be found + * @throws ReadFailedException If read operation had failed + */ + @Nonnull + public static SwInterfaceDetails getVppInterfaceDetails(@Nonnull final FutureJVpp futureJvpp, + @Nonnull final InstanceIdentifier id, + @Nonnull final String name, final int index, + @Nonnull final ModificationCache ctx) + throws ReadFailedException { + requireNonNull(futureJvpp, "futureJvpp should not be null"); + requireNonNull(name, "name should not be null"); + requireNonNull(ctx, "ctx should not be null"); + + final SwInterfaceDump request = new SwInterfaceDump(); + request.nameFilter = name.getBytes(); + request.nameFilterValid = 1; + + final Map allInterfaces = InterfaceCustomizer.getCachedInterfaceDump(ctx); + + // Returned cached if available + if (allInterfaces.containsKey(index)) { + return allInterfaces.get(index); + } + + SwInterfaceDetailsReplyDump ifaces; + try { + CompletionStage requestFuture = futureJvpp.swInterfaceDump(request); + ifaces = TranslateUtils.getReplyForRead(requestFuture.toCompletableFuture(), id); + if (null == ifaces || null == ifaces.swInterfaceDetails || ifaces.swInterfaceDetails.isEmpty()) { + request.nameFilterValid = 0; + + LOG.warn("VPP returned null instead of interface by key {} and its not cached", name); + LOG.warn("Iterating through all the interfaces to find interface: {}", name); + + // Or else just perform full dump and do inefficient filtering + requestFuture = futureJvpp.swInterfaceDump(request); + ifaces = TranslateUtils.getReplyForRead(requestFuture.toCompletableFuture(), id); + + // Update the cache + allInterfaces.clear(); + allInterfaces + .putAll(ifaces.swInterfaceDetails.stream().collect(Collectors.toMap(d -> d.swIfIndex, d -> d))); + + if (allInterfaces.containsKey(index)) { + return allInterfaces.get(index); + } + throw new IllegalArgumentException("Unable to find interface " + name); + } + } catch (VppBaseCallException e) { + LOG.warn("getVppInterfaceDetails for id :{} and name :{} failed with exception :", id, name, e); + throw new ReadFailedException(id, e); + } + + // SwInterfaceDump's name filter does prefix match, so we need additional filtering: + final SwInterfaceDetails iface = + ifaces.swInterfaceDetails.stream().filter(d -> d.swIfIndex == index).collect(SINGLE_ITEM_COLLECTOR); + allInterfaces.put(index, iface); // update the cache + return iface; + } + + /** + * Determine interface type based on its VPP name (relying on VPP's interface naming conventions) + * + * @param interfaceName VPP generated interface name + * @return Interface type + */ + @Nonnull + public static Class getInterfaceType(@Nonnull final String interfaceName) { + if (interfaceName.startsWith("tap")) { + return Tap.class; + } + + if (interfaceName.startsWith("vxlan_gpe")) { + return VxlanGpeTunnel.class; + } + + if (interfaceName.startsWith("vxlan")) { + return VxlanTunnel.class; + } + + if (interfaceName.startsWith("VirtualEthernet")) { + return VhostUser.class; + } + + return EthernetCsmacd.class; + } + + /** + * Check interface type. Uses interface details from VPP to determine. Uses {@link + * #getVppInterfaceDetails(FutureJVpp, InstanceIdentifier, String, int, ModificationCache)} internally so tries to + * utilize cache before asking VPP. + */ + static boolean isInterfaceOfType(@Nonnull final FutureJVpp jvpp, + @Nonnull final ModificationCache cache, + @Nonnull final InstanceIdentifier id, + final int index, + @Nonnull final Class ifcType) throws ReadFailedException { + final String name = id.firstKeyOf(Interface.class).getName(); + final SwInterfaceDetails vppInterfaceDetails = + getVppInterfaceDetails(jvpp, id, name, index, cache); + + return isInterfaceOfType(ifcType, vppInterfaceDetails); + } + + static boolean isInterfaceOfType(final Class ifcType, + final SwInterfaceDetails cachedDetails) { + return ifcType.equals(getInterfaceType(TranslateUtils.toString(cachedDetails.interfaceName))); + } +} -- cgit 1.2.3-korg