3.1.4.1 Query Access Sub-Request Processing

The Query Access sub-request, as specified in section 2.2.2.1.2, is used by a protocol client to determine if the file is expected to allow read access, and if the file is expected to allow write access, as determined by the underlying system. The server MUST reply back to the client with a Query Access sub-response, as specified in section 2.2.3.1.1.