The FPolicy server receives a notification from the storage system for file rename operations.
When a file rename request is made by a CIFS or NFS client to the storage system, the storage system conducts all the relevant checks on the file. The relevant checks include checking permission, checking if the file is available, checking if the file is being accessed by some other client, and so on. After the file passes the checks, the request is forwarded to the FPolicy server, if the file extension is included in FPolicy ext[ension] inc[lude] list.
The rename request is sent to the FPolicy server only if either the old or the new extension is listed in the ext[ension] inc[lude] list. That is, if a file name is being changed from test.txt to test.mp3, either or both the extensions (txt or .mp3) should be listed in the extension include list.
The FPolicy server receives this request and allows or blocks the file rename request, based on the configuration of the policies.
The file rename operation should be added to the monitored operations list for the FPolicy server to receive a notification from the storage system. The file rename operation can be monitored through the CLI or ONTAPI. It can also be set by the FPolicy server using a bitmask.