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Can files have NFSv4_acl inheritance flags?

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ontap-9
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nas
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Applies to

  • ONTAP 9
  • NFS
  • NFSv4_acl

Answer

Based on RFC 8881 (section 6.4.3.1) it mentions that in certain cases files inside a directory can inherit ACEs from parent directory ACL subjected to setting of flag ACE4_FILE_INHERIT_FLAG.

"6.4.3.1. The Inherited ACL
If the object being created is not a directory, the inherited ACL SHOULD NOT inherit ACEs from the parent directory ACL unless the ACE4_FILE_INHERIT_FLAG is set.
If the object being created is a directory, the inherited ACL should inherit all inheritable ACEs from the parent directory, that is, those that have the ACE4_FILE_INHERIT_ACE or ACE4_DIRECTORY_INHERIT_ACE flag set. If the inheritable ACE has ACE4_FILE_INHERIT_ACE set but ACE4_DIRECTORY_INHERIT_ACE is clear, the inherited ACE on the newly created directory MUST have the ACE4_INHERIT_ONLY_ACE flag set to prevent the directory from being affected by ACEs meant for non-directories."

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