From bcbe3b71e1e9d12fab817ed001998eae397853cd Mon Sep 17 00:00:00 2001 From: Marek Gradzki Date: Thu, 23 Aug 2018 10:33:47 +0200 Subject: HC2VPP-379: move NAT validation code out of customizers Use Validator interface introduced by HONEYCOMB-431: https://gerrit.fd.io/r/#/c/14022/ Change-Id: I9e4c8d59f299ed7da4a93bbdc70c81f2bea93606 Signed-off-by: Marek Gradzki --- .../io/fd/hc2vpp/nat/write/PolicyValidator.java | 52 ++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyValidator.java (limited to 'nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyValidator.java') diff --git a/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyValidator.java b/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyValidator.java new file mode 100644 index 000000000..8b13a0851 --- /dev/null +++ b/nat/nat2vpp/src/main/java/io/fd/hc2vpp/nat/write/PolicyValidator.java @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2018 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.nat.write; + +import static com.google.common.base.Preconditions.checkArgument; + +import io.fd.honeycomb.translate.write.DataValidationFailedException; +import io.fd.honeycomb.translate.write.Validator; +import io.fd.honeycomb.translate.write.WriteContext; +import javax.annotation.Nonnull; +import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180628.nat.instances.instance.Policy; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +final class PolicyValidator implements Validator { + @Override + public void validateWrite(@Nonnull final InstanceIdentifier id, @Nonnull final Policy dataAfter, + @Nonnull final WriteContext writeContext) + throws DataValidationFailedException.CreateValidationFailedException { + try { + validatePolicy(id, dataAfter); + } catch (RuntimeException e) { + throw new DataValidationFailedException.CreateValidationFailedException(id, dataAfter, e); + } + } + + private void validatePolicy(final InstanceIdentifier id, final Policy policy) { + // HC supports only single NAT policy per NAT instance (VRF) + // To ensure that (and for simplicity), we require policy id = 0. + final Long policyId = id.firstKeyOf(Policy.class).getId(); + checkArgument(policyId == 0, + "Only single policy per NAT instance (VRF) is supported (expected id=0, but %s given)", policyId); + + if (policy.getNat64Prefixes() != null) { + final int prefixCount = policy.getNat64Prefixes().size(); + checkArgument(prefixCount <= 1, "Only single nat64-prefix is supported, but %s given", prefixCount); + } + } +} -- cgit 1.2.3-korg f0572ede30b752be'>apps/src/http-server/http-server/icn_response.h

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