From fb50d586985f12d1aa39eb6c5fdcd6b8a87b26da Mon Sep 17 00:00:00 2001 From: Jan Srnicek Date: Fri, 10 Mar 2017 10:00:43 +0100 Subject: HC2VPP-7 - L3 split to separate module ipv4/ipv6/proxy arp/nd proxy Change-Id: I536298dd5584f79f357e94da08d402e67e79bb71 Signed-off-by: Jan Srnicek --- .../hc2vpp/l3/utils/ip/read/IfaceDumpFilter.java | 62 ++++++++ .../hc2vpp/l3/utils/ip/read/IpAddressReader.java | 147 ++++++++++++++++++ .../hc2vpp/l3/utils/ip/read/IpNeighbourReader.java | 102 +++++++++++++ .../io/fd/hc2vpp/l3/utils/ip/read/IpReader.java | 59 ++++++++ .../io/fd/hc2vpp/l3/utils/ip/write/IpWriter.java | 166 +++++++++++++++++++++ 5 files changed, 536 insertions(+) create mode 100644 l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IfaceDumpFilter.java create mode 100644 l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpAddressReader.java create mode 100644 l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpNeighbourReader.java create mode 100644 l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpReader.java create mode 100644 l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/write/IpWriter.java (limited to 'l3/utils/src/main/java/io') diff --git a/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IfaceDumpFilter.java b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IfaceDumpFilter.java new file mode 100644 index 000000000..45893a497 --- /dev/null +++ b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IfaceDumpFilter.java @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2017 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.hc2vpp.l3.utils.ip.read; + +public class IfaceDumpFilter { + + private final int interfaceIndex; + private final boolean isIpv6; + + public IfaceDumpFilter(final int interfaceIndex, final boolean isIpv6) { + this.interfaceIndex = interfaceIndex; + this.isIpv6 = isIpv6; + } + + public int getInterfaceIndex() { + return interfaceIndex; + } + + public boolean isIpv6() { + return isIpv6; + } + + @Override + public String toString() { + return "IfaceDumpFilter{" + + "interfaceIndex=" + interfaceIndex + + ", isIpv6=" + isIpv6 + + '}'; + } + + @Override + public boolean equals(Object o) { + if (this == o) return true; + if (o == null || getClass() != o.getClass()) return false; + + IfaceDumpFilter that = (IfaceDumpFilter) o; + + if (interfaceIndex != that.interfaceIndex) return false; + return isIpv6 == that.isIpv6; + } + + @Override + public int hashCode() { + int result = interfaceIndex; + result = 31 * result + (isIpv6 ? 1 : 0); + return result; + } +} diff --git a/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpAddressReader.java b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpAddressReader.java new file mode 100644 index 000000000..369241e47 --- /dev/null +++ b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpAddressReader.java @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2017 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.hc2vpp.l3.utils.ip.read; + +import static com.google.common.base.Preconditions.checkNotNull; + +import com.google.common.base.Optional; +import io.fd.hc2vpp.common.translate.util.ByteDataTranslator; +import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer; +import io.fd.hc2vpp.common.translate.util.NamingContext; +import io.fd.hc2vpp.v3po.util.SubInterfaceUtils; +import io.fd.honeycomb.translate.read.ReadContext; +import io.fd.honeycomb.translate.read.ReadFailedException; +import io.fd.honeycomb.translate.util.RWUtils; +import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager; +import io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor; +import io.fd.vpp.jvpp.core.dto.IpAddressDetails; +import io.fd.vpp.jvpp.core.dto.IpAddressDetailsReplyDump; +import io.fd.vpp.jvpp.core.dto.IpAddressDump; +import io.fd.vpp.jvpp.core.future.FutureJVppCore; +import java.util.Collections; +import java.util.List; +import java.util.function.Function; +import java.util.stream.Collectors; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6AddressNoZone; +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.opendaylight.params.xml.ns.yang.vpp.vlan.rev161214.interfaces.state._interface.sub.interfaces.SubInterface; +import org.opendaylight.yangtools.yang.binding.Identifier; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +/** + * Provides logic for reading of ip addresses + */ +public abstract class IpAddressReader extends IpReader { + + private final DumpCacheManager dumpCacheManager; + + protected IpAddressReader(@Nonnull final NamingContext interfaceContext, final boolean isIpv6, + @Nonnull final DumpCacheManager dumpCacheManager) { + super(interfaceContext, isIpv6); + this.dumpCacheManager = dumpCacheManager; + } + + @Nonnull + protected Optional interfaceAddressDumpSupplier(@Nonnull final InstanceIdentifier id, + @Nonnull final ReadContext context) throws ReadFailedException { + return dumpCacheManager.getDump(id, context.getModificationCache(), new IfaceDumpFilter(getInterfaceContext() + .getIndex(id.firstKeyOf(Interface.class).getName(), context.getMappingContext()), isIpv6())); + } + + @Nonnull + protected Optional subInterfaceAddressDumpSupplier(@Nonnull final InstanceIdentifier id, + @Nonnull final ReadContext context) throws ReadFailedException { + final String subInterfaceName = SubInterfaceUtils.getSubInterfaceName(id.firstKeyOf(Interface.class).getName(), + id.firstKeyOf(SubInterface.class).getIdentifier().intValue()); + return dumpCacheManager.getDump(id, context.getModificationCache(), new IfaceDumpFilter(getInterfaceContext() + .getIndex(subInterfaceName, context.getMappingContext()), isIpv6())); + } + + @Nonnull + protected List getAllIpv4AddressIds( + final Optional dumpOptional, + @Nonnull final Function keyConstructor) { + if (dumpOptional.isPresent() && dumpOptional.get().ipAddressDetails != null) { + return dumpOptional.get().ipAddressDetails.stream() + .map(detail -> keyConstructor.apply(arrayToIpv4AddressNoZone(detail.ip))) + .collect(Collectors.toList()); + } else { + return Collections.emptyList(); + } + } + + @Nonnull + protected List getAllIpv6AddressIds( + final Optional dumpOptional, + @Nonnull final Function keyConstructor) { + if (dumpOptional.isPresent() && dumpOptional.get().ipAddressDetails != null) { + return dumpOptional.get().ipAddressDetails.stream() + .map(detail -> keyConstructor.apply(arrayToIpv6AddressNoZone(detail.ip))) + .collect(Collectors.toList()); + } else { + return Collections.emptyList(); + } + } + + @Nonnull + protected Optional findIpv4AddressDetailsByIp( + final Optional dump, + @Nonnull final Ipv4AddressNoZone ip) { + checkNotNull(ip, "ip address should not be null"); + + if (dump.isPresent() && dump.get().ipAddressDetails != null) { + final List details = dump.get().ipAddressDetails; + + return Optional.of(details.stream() + .filter(singleDetail -> ip.equals(arrayToIpv4AddressNoZone(singleDetail.ip))) + .collect(RWUtils.singleItemCollector())); + } + return Optional.absent(); + } + + @Nonnull + protected Optional findIpv6AddressDetailsByIp( + final Optional dump, + @Nonnull final Ipv6AddressNoZone ip) { + checkNotNull(ip, "ip address should not be null"); + + if (dump.isPresent() && dump.get().ipAddressDetails != null) { + final List details = dump.get().ipAddressDetails; + + return Optional.of(details.stream() + .filter(singleDetail -> ip.equals(arrayToIpv6AddressNoZone(singleDetail.ip))) + .collect(RWUtils.singleItemCollector())); + } + return Optional.absent(); + } + + @Nonnull + protected static EntityDumpExecutor createAddressDumpExecutor( + @Nonnull final FutureJVppCore vppApi) { + return (identifier, params) -> { + checkNotNull(params, "Address dump params cannot be null"); + + final IpAddressDump dumpRequest = new IpAddressDump(); + dumpRequest.isIpv6 = ByteDataTranslator.INSTANCE.booleanToByte(params.isIpv6()); + dumpRequest.swIfIndex = params.getInterfaceIndex(); + + return JvppReplyConsumer.INSTANCE.getReplyForRead(vppApi.ipAddressDump(dumpRequest).toCompletableFuture(), identifier); + }; + } +} diff --git a/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpNeighbourReader.java b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpNeighbourReader.java new file mode 100644 index 000000000..69df87b62 --- /dev/null +++ b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpNeighbourReader.java @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2017 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.hc2vpp.l3.utils.ip.read; + +import static com.google.common.base.Preconditions.checkNotNull; + +import com.google.common.base.Optional; +import io.fd.hc2vpp.common.translate.util.ByteDataTranslator; +import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer; +import io.fd.hc2vpp.common.translate.util.NamingContext; +import io.fd.hc2vpp.v3po.util.SubInterfaceUtils; +import io.fd.honeycomb.translate.read.ReadContext; +import io.fd.honeycomb.translate.read.ReadFailedException; +import io.fd.honeycomb.translate.util.read.cache.DumpCacheManager; +import io.fd.honeycomb.translate.util.read.cache.EntityDumpExecutor; +import io.fd.vpp.jvpp.core.dto.IpNeighborDetails; +import io.fd.vpp.jvpp.core.dto.IpNeighborDetailsReplyDump; +import io.fd.vpp.jvpp.core.dto.IpNeighborDump; +import io.fd.vpp.jvpp.core.future.FutureJVppCore; +import java.util.Collections; +import java.util.List; +import java.util.function.Function; +import java.util.stream.Collectors; +import javax.annotation.Nonnull; +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.opendaylight.params.xml.ns.yang.vpp.vlan.rev161214.interfaces.state._interface.sub.interfaces.SubInterface; +import org.opendaylight.yangtools.yang.binding.Identifier; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +/** + * Provides logic for reading ip neighbours + */ +public abstract class IpNeighbourReader extends IpReader { + + private final DumpCacheManager dumpCacheManager; + + protected IpNeighbourReader(@Nonnull final NamingContext interfaceContext, boolean isIpv6, + @Nonnull final DumpCacheManager dumpCacheManager) { + super(interfaceContext, isIpv6); + this.dumpCacheManager = dumpCacheManager; + } + + @Nonnull + protected Optional interfaceNeighboursDump(@Nonnull final InstanceIdentifier id, + @Nonnull final ReadContext context) throws ReadFailedException { + return dumpCacheManager.getDump(id, context.getModificationCache(), new IfaceDumpFilter(getInterfaceContext() + .getIndex(id.firstKeyOf(Interface.class).getName(), context.getMappingContext()), isIpv6())); + } + + @Nonnull + protected Optional subInterfaceNeighboursDump(@Nonnull final InstanceIdentifier id, + @Nonnull final ReadContext context) throws ReadFailedException { + final String subInterfaceName = SubInterfaceUtils.getSubInterfaceName(id.firstKeyOf(Interface.class).getName(), + id.firstKeyOf(SubInterface.class).getIdentifier().intValue()); + return dumpCacheManager.getDump(id, context.getModificationCache(), new IfaceDumpFilter(getInterfaceContext() + .getIndex(subInterfaceName, context.getMappingContext()), isIpv6())); + } + + @Nonnull + protected static EntityDumpExecutor createNeighbourDumpExecutor( + @Nonnull final FutureJVppCore vppApi) { + return (identifier, params) -> { + checkNotNull(params, "Address dump params cannot be null"); + + final IpNeighborDump dumpRequest = new IpNeighborDump(); + dumpRequest.isIpv6 = ByteDataTranslator.INSTANCE.booleanToByte(params.isIpv6()); + dumpRequest.swIfIndex = params.getInterfaceIndex(); + + return JvppReplyConsumer.INSTANCE.getReplyForRead(vppApi.ipNeighborDump(dumpRequest).toCompletableFuture(), identifier); + }; + } + + @Nonnull + protected List getNeighborKeys( + final Optional neighbourDumpOpt, + final Function detailToKey) + throws ReadFailedException { + if (neighbourDumpOpt.isPresent()) { + final IpNeighborDetailsReplyDump neighbourDump = neighbourDumpOpt.get(); + + return neighbourDump.ipNeighborDetails.stream() + .map(detailToKey) + .collect(Collectors.toList()); + } else { + return Collections.emptyList(); + } + } +} diff --git a/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpReader.java b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpReader.java new file mode 100644 index 000000000..3ba0ba862 --- /dev/null +++ b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/read/IpReader.java @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2017 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.hc2vpp.l3.utils.ip.read; + +import com.google.common.collect.ImmutableSet; +import io.fd.hc2vpp.common.translate.util.AddressTranslator; +import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer; +import io.fd.hc2vpp.common.translate.util.NamingContext; +import io.fd.honeycomb.translate.util.read.cache.CacheKeyFactory; +import io.fd.honeycomb.translate.util.read.cache.TypeAwareIdentifierCacheKeyFactory; +import javax.annotation.Nonnull; +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.opendaylight.params.xml.ns.yang.vpp.vlan.rev161214.interfaces.state._interface.sub.interfaces.SubInterface; + +/** + * Utility class providing Ipv4/6 read support. + */ +public abstract class IpReader implements AddressTranslator, JvppReplyConsumer { + + private final NamingContext interfaceContext; + private final boolean isIpv6; + + IpReader(@Nonnull final NamingContext interfaceContext, final boolean isIpv6) { + this.interfaceContext = interfaceContext; + this.isIpv6 = isIpv6; + } + + @Nonnull + protected static CacheKeyFactory interfaceScopedCacheKeyFactory(@Nonnull final Class dumpReplyClass) { + return new TypeAwareIdentifierCacheKeyFactory(dumpReplyClass, ImmutableSet.of(Interface.class)); + } + + @Nonnull + protected static CacheKeyFactory subInterfaceScopedCacheKeyFactory(@Nonnull final Class dumpReplyClass) { + return new TypeAwareIdentifierCacheKeyFactory(dumpReplyClass, ImmutableSet.of(SubInterface.class)); + } + + protected NamingContext getInterfaceContext() { + return interfaceContext; + } + + protected boolean isIpv6() { + return isIpv6; + } +} diff --git a/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/write/IpWriter.java b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/write/IpWriter.java new file mode 100644 index 000000000..3f5023890 --- /dev/null +++ b/l3/utils/src/main/java/io/fd/hc2vpp/l3/utils/ip/write/IpWriter.java @@ -0,0 +1,166 @@ +/* + * Copyright (c) 2017 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.hc2vpp.l3.utils.ip.write; + +import static com.google.common.base.Preconditions.checkArgument; +import static com.google.common.base.Preconditions.checkNotNull; + +import io.fd.hc2vpp.common.translate.util.AddressTranslator; +import io.fd.hc2vpp.common.translate.util.ByteDataTranslator; +import io.fd.hc2vpp.common.translate.util.JvppReplyConsumer; +import io.fd.hc2vpp.common.translate.util.NamingContext; +import io.fd.honeycomb.translate.MappingContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import io.fd.vpp.jvpp.core.dto.IpNeighborAddDel; +import io.fd.vpp.jvpp.core.dto.SwInterfaceAddDelAddress; +import io.fd.vpp.jvpp.core.dto.SwInterfaceAddDelAddressReply; +import io.fd.vpp.jvpp.core.future.FutureJVppCore; +import java.util.concurrent.CompletionStage; +import java.util.function.Supplier; +import javax.annotation.Nonnegative; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6AddressNoZone; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface; +import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.vpp.vlan.rev161214.interfaces._interface.sub.interfaces.SubInterface; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +/** + * Utility class providing Ipv4/6 CUD support. + */ +public interface IpWriter extends ByteDataTranslator, AddressTranslator, JvppReplyConsumer { + + int DOTTED_QUAD_MASK_LENGTH = 4; + int IPV4_ADDRESS_PART_BITS_COUNT = 8; + int NETMASK_PART_LIMIT = 256; // 2 power to 8 + + default void addDelAddress(@Nonnull final FutureJVppCore futureJVppCore, final boolean add, + final InstanceIdentifier id, + @Nonnegative final int ifaceId, + @Nonnull final Ipv4AddressNoZone address, @Nonnegative final byte prefixLength) + throws WriteFailedException { + checkArgument(prefixLength > 0, "Invalid prefix length"); + checkNotNull(address, "address should not be null"); + + final byte[] addressBytes = ipv4AddressNoZoneToArray(address); + + final CompletionStage swInterfaceAddDelAddressReplyCompletionStage = + futureJVppCore.swInterfaceAddDelAddress( + getSwInterfaceAddDelAddressRequest(ifaceId, booleanToByte(add) /* isAdd */, + (byte) 0 /* isIpv6 */, (byte) 0 /* delAll */, prefixLength, addressBytes)); + + getReplyForWrite(swInterfaceAddDelAddressReplyCompletionStage.toCompletableFuture(), id); + } + + default void addDelAddress(@Nonnull final FutureJVppCore futureJVppCore, final boolean add, + final InstanceIdentifier id, + @Nonnegative final int ifaceId, + @Nonnull final Ipv6AddressNoZone address, @Nonnegative final byte prefixLength) + throws WriteFailedException { + checkNotNull(address, "address should not be null"); + + final byte[] addressBytes = ipv6AddressNoZoneToArray(address); + + final CompletionStage swInterfaceAddDelAddressReplyCompletionStage = + futureJVppCore.swInterfaceAddDelAddress( + getSwInterfaceAddDelAddressRequest(ifaceId, booleanToByte(add) /* isAdd */, + (byte) 1 /* isIpv6 */, (byte) 0 /* delAll */, prefixLength, addressBytes)); + + getReplyForWrite(swInterfaceAddDelAddressReplyCompletionStage.toCompletableFuture(), id); + } + + default SwInterfaceAddDelAddress getSwInterfaceAddDelAddressRequest(final int swIfc, final byte isAdd, + final byte ipv6, final byte deleteAll, + final byte length, final byte[] addr) { + final SwInterfaceAddDelAddress swInterfaceAddDelAddress = new SwInterfaceAddDelAddress(); + swInterfaceAddDelAddress.swIfIndex = swIfc; + swInterfaceAddDelAddress.isAdd = isAdd; + swInterfaceAddDelAddress.isIpv6 = ipv6; + swInterfaceAddDelAddress.delAll = deleteAll; + swInterfaceAddDelAddress.address = addr; + swInterfaceAddDelAddress.addressLength = length; + return swInterfaceAddDelAddress; + } + + /** + * Returns the prefix size in bits of the specified subnet mask. Example: For the subnet mask 255.255.255.128 it + * returns 25 while for 255.0.0.0 it returns 8. If the passed subnetMask array is not complete or contains not only + * leading ones, IllegalArgumentExpression is thrown + * + * @param mask the subnet mask in dot notation 255.255.255.255 + * @return the prefix length as number of bits + */ + default byte getSubnetMaskLength(final String mask) { + String[] maskParts = mask.split("\\."); + + checkArgument(maskParts.length == DOTTED_QUAD_MASK_LENGTH, + "Network mask %s is not in Quad Dotted Decimal notation!", mask); + + long maskAsNumber = 0; + for (int i = 0; i < DOTTED_QUAD_MASK_LENGTH; i++) { + maskAsNumber <<= IPV4_ADDRESS_PART_BITS_COUNT; + int value = Integer.parseInt(maskParts[i]); + checkArgument(value < NETMASK_PART_LIMIT, "Network mask %s contains invalid number(s) over 255!", mask); + checkArgument(value >= 0, "Network mask %s contains invalid negative number(s)!", mask); + maskAsNumber += value; + } + + String bits = Long.toBinaryString(maskAsNumber); + checkArgument(bits.length() == IPV4_ADDRESS_PART_BITS_COUNT * DOTTED_QUAD_MASK_LENGTH, + "Incorrect network mask %s", mask); + final int leadingOnes = bits.indexOf('0'); + checkArgument(leadingOnes != -1, "Broadcast address %s is not allowed!", mask); + checkArgument(bits.substring(leadingOnes).indexOf('1') == -1, + "Non-contiguous network mask %s is not allowed!", mask); + return (byte) leadingOnes; + } + + default int subInterfaceIndex(final InstanceIdentifier id, final NamingContext interfaceContext, + final MappingContext mappingContext) { + return interfaceContext + .getIndex(id.firstKeyOf(Interface.class).getName() + "." + id.firstKeyOf(SubInterface.class).getIdentifier(), + mappingContext); + } + + default void addDelNeighbour(@Nonnull final InstanceIdentifier id, + @Nonnull final Supplier requestSupplier, + @Nonnull final FutureJVppCore api) throws WriteFailedException { + getReplyForWrite(api.ipNeighborAddDel(requestSupplier.get()).toCompletableFuture(), id); + } + + default IpNeighborAddDel preBindIpv4Request(final boolean add) { + IpNeighborAddDel request = staticPreBindRequest(add); + request.isIpv6 = 0; + + return request; + } + + default IpNeighborAddDel preBindIpv6Request(final boolean add) { + IpNeighborAddDel request = staticPreBindRequest(add); + request.isIpv6 = 1; + + return request; + } + + static IpNeighborAddDel staticPreBindRequest(final boolean add) { + IpNeighborAddDel request = new IpNeighborAddDel(); + + request.isAdd = ByteDataTranslator.INSTANCE.booleanToByte(add); + request.isStatic = 1; + return request; + } +} -- cgit 1.2.3-korg