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Subject [GitHub] [mesos] kaysoky commented on a change in pull request #326: MESOS-6874: Validate the match between Type and *Infos in the ContainerInfo.
Date Mon, 11 Mar 2019 19:19:09 GMT
kaysoky commented on a change in pull request #326: MESOS-6874: Validate the match between
Type and *Infos in the ContainerInfo.
URL: https://github.com/apache/mesos/pull/326#discussion_r264383368
 
 

 ##########
 File path: src/slave/containerizer/composing.cpp
 ##########
 @@ -425,6 +425,28 @@ Future<Containerizer::LaunchResult> ComposingContainerizerProcess::_launch(
 }
 
 
+static Try<Nothing> validateContainerInfoType(const ContainerInfo& info)
+{
+  const auto* typeDescriptor = ContainerInfo::Type_descriptor();
+  const auto* infoDescriptor = ContainerInfo::descriptor();
+  for (int index = 0; index < typeDescriptor->value_count(); index++) {
+    const auto* typeValueDescriptor = typeDescriptor->value(index);
+    const auto* infoValueDescriptor = infoDescriptor->FindFieldByName(
+      strings::lower(typeValueDescriptor->name()));
+    CHECK_NOTNULL(infoValueDescriptor);
+
+    if (
+      int(info.type()) != typeValueDescriptor->number() &&
 
 Review comment:
   It looks like, in every protobuf union except this one, we have an `UNKNOWN = 0` Type,
which guards against future additions to the protobuf.  If you end up generalizing this helper,
the `0` case will need to be ignored.

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