From 957461dcfd741fc3290e4317c2297c5618b593b5 Mon Sep 17 00:00:00 2001 From: Maros Marsalek Date: Mon, 10 Oct 2016 15:37:04 +0200 Subject: HONEYCOMB-249 Add External IP pool management Change-Id: I3e57b09733b8c7060445ed1af7a5edb3348dd4e1 Signed-off-by: Maros Marsalek --- .../nat/write/ExternalIpPoolCustomizer.java | 92 ++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/write/ExternalIpPoolCustomizer.java (limited to 'nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/write/ExternalIpPoolCustomizer.java') diff --git a/nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/write/ExternalIpPoolCustomizer.java b/nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/write/ExternalIpPoolCustomizer.java new file mode 100644 index 000000000..856bc1355 --- /dev/null +++ b/nat/nat2vpp/src/main/java/io/fd/honeycomb/nat/write/ExternalIpPoolCustomizer.java @@ -0,0 +1,92 @@ +/* + * 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.nat.write; + +import static com.google.common.base.Preconditions.checkArgument; + +import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer; +import io.fd.honeycomb.translate.vpp.util.Ipv4AddressRange; +import io.fd.honeycomb.translate.vpp.util.Ipv4Translator; +import io.fd.honeycomb.translate.vpp.util.JvppReplyConsumer; +import io.fd.honeycomb.translate.write.WriteContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import io.fd.vpp.jvpp.snat.dto.SnatAddAddressRange; +import io.fd.vpp.jvpp.snat.future.FutureJVppSnatFacade; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.config.nat.instances.NatInstance; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.parameters.ExternalIpAddressPool; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev150908.nat.parameters.ExternalIpAddressPoolKey; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +final class ExternalIpPoolCustomizer implements ListWriterCustomizer, + JvppReplyConsumer, Ipv4Translator { + + private static final Logger LOG = LoggerFactory.getLogger(ExternalIpPoolCustomizer.class); + + private final FutureJVppSnatFacade jvppSnat; + + ExternalIpPoolCustomizer(@Nonnull final FutureJVppSnatFacade jvppSnat) { + this.jvppSnat = jvppSnat; + } + + @Override + public void writeCurrentAttributes(@Nonnull final InstanceIdentifier id, + @Nonnull final ExternalIpAddressPool dataAfter, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + checkArgument(id.firstKeyOf(NatInstance.class).getId() == 0, + "External IP pools are only assignable for nat instance(vrf-id) with ID 0"); + LOG.trace("Adding address range:{}, as: {}", id, dataAfter); + // TODO check overlaps ? VPP-478 maybe no necessary, depending on how VPP handles them + getReplyForCreate(jvppSnat.snatAddAddressRange( + getRequest(dataAfter.getExternalIpPool(), true)).toCompletableFuture(), id, dataAfter); + LOG.debug("Address range: {} added successfully", id); + } + + @Override + public void updateCurrentAttributes(@Nonnull final InstanceIdentifier id, + @Nonnull final ExternalIpAddressPool dataBefore, + @Nonnull final ExternalIpAddressPool dataAfter, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter, + new UnsupportedOperationException("Address range update is not supported")); + } + + @Override + public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier id, + @Nonnull final ExternalIpAddressPool dataBefore, + @Nonnull final WriteContext writeContext) throws WriteFailedException { + LOG.trace("Deleting address range:{}, as: {}", id, dataBefore); + getReplyForDelete(jvppSnat.snatAddAddressRange( + getRequest(dataBefore.getExternalIpPool(), false)).toCompletableFuture(), id); + LOG.debug("Deleting range: {} added successfully", id); + } + + private SnatAddAddressRange getRequest(final Ipv4Prefix externalIpPool, boolean isAdd) { + SnatAddAddressRange request = new SnatAddAddressRange(); + // SNAT supports only IPv4 now, so does the model + final Ipv4AddressRange range = Ipv4AddressRange.fromPrefix(externalIpPool); + LOG.trace("Handling address range: {}", range); + request.isIp4 = 1; + request.isAdd = (byte) (isAdd ? 1 : 0); + request.firstIpAddress = ipv4AddressNoZoneToArray(range.getStart()); + request.lastIpAddress = ipv4AddressNoZoneToArray(range.getEnd()); + return request; + } +} -- cgit 1.2.3-korg